item: #1 of 141 id: jsti-10 author: Said, Muhammad; Palapa, Neza Rahayu title: Adsorption of congo red using Mg/Al hydrotalcite date: 2017-06-21 words: 3197 flesch: 50 summary: Effect of adsorption pH of hydrotalcite and hydrtalcite intercalated amount of adsorbed Congo red Effect of Congo red Adsorption of Time by Hydrotalcite and Hydrotalcite Intercalated Hydrotalcite intercalated can absorb more adsorbate than hydrotalcite at the same time. Effect of Congo red Adsorption of Time by Hydrotalcite and Hydrotalcite Intercalated Table 1. keywords: adsorbent; adsorption; congo; dye; hydrotalcite; process; red cache: jsti-10.pdf plain text: jsti-10.txt item: #2 of 141 id: jsti-11 author: Fitriana, Winda; Lesbani, Aldes title: Preparation, characterization, and thermal stability of B2O3-SiO2 date: 2017-06-21 words: 1566 flesch: 56 summary: Compound B2O3 has diffraction at 2 value 26-27 deg and compound SiO2 has diffraction at 2 value 20-22 deg. High temperature stable material is needed for many applications such as catalyst and thin film (Moon et.al, 2004). keywords: b2o3; high; material; sio2; stability cache: jsti-11.pdf plain text: jsti-11.txt item: #3 of 141 id: jsti-13 author: Ginting, Santa Oktavia; Mohadi, Risfidian title: Adsorption of congo red using kaolinite-cellulose adsorbent date: 2017-04-10 words: 6311 flesch: 53 summary: Thermodynamic parameters (adsorption capacity and energy) of Congo red dye adsorption by cellulose adsorbents from rubber wood fibers (control), activated kaolinite (control) and impregnated kaolinite cellulose. Thermodynamic parameters (enthalpy and entropy) of Congo red dye adsorption by cellulose from rubber wood fibers, activat- ed kaolinite, and impregnated cellulose kaolinite Adsorbent Co R 2 ∆H (kJ/mol) ∆S (kJ/mol) Cellulose (control) 5 0.933 112.45 0.32 10 0.948 48.88 0.13 15 0.996 18.92 0.05 20 0.983 10.09 0.02 25 1.000 22.70 0.06 Kaolinite activated 5 0.977 61.07 0.18 10 0.998 12.94 0.038 15 0.717 7.80 0.030 20 0.999 15.36 0.050 25 0.970 14.23 0.046 Kaolinite impregnated cel- lulose 10 0.956 19.72 0.054 20 0.866 7.37 0.010 30 0.793 12.83 0.029 40 0.728 8.89 0.015 Ginting et al. 2017/Science & Technology Indonesia 2 (2) 2017:29-36 © 2017 Published under the term of the CC BY NC SA 4.0 licence 36 of Methylene Blue. keywords: adsorbent; adsorption; cellulose; cm-1; congo; dye; kaolinite; red; rubber; vibration; wood cache: jsti-13.pdf plain text: jsti-13.txt item: #4 of 141 id: jsti-132 author: Lesbani, Aldes title: Subject Index date: 2018-08-05 words: 71 flesch: 60 summary: Modi�ed Alkyd Resin 14. Waste Palm Oil 17. keywords: issn:2580 cache: jsti-132.pdf plain text: jsti-132.txt item: #5 of 141 id: jsti-133 author: Wardhani, Puteri Kusuma; Padmi T, Nur; Nasir, Subriyer; Wardhani, Puteri Kusuma title: Fabrication of Thermoplastic Elastomers (TPE) by Using Emulsion Method as an Alternative Material For Vehicle Bumper Protector date: 2018-10-26 words: 3265 flesch: 52 summary: The prepa- ration of thermoplastic elastomers can be carried out in both liquid and emulsion phases. Tensile strength test results on thermoplastic elastomers PP-g-MA and latex by emulsion method Methode Specimen B (mm) H (mm) keywords: elastomers; emulsion; latex; sample; thermoplastic cache: jsti-133.pdf plain text: jsti-133.txt item: #6 of 141 id: jsti-134 author: Fitria, Fitrya; A., Annisa; S., Nikita; C., Ranna title: Alpha Glukosidase Inhibitory Test and Total Phenolic Content of Ethanol Extract of Parkia Speciosa Plant date: 2019-01-27 words: 2703 flesch: 58 summary: Phenolic compound has capacity as inhibitor of alpha glucosidase activity by bond- ing with site active of protein (Schafer and P, 2006). This research aims to know effectiveness of alpha glucosidase inhibitory effect of ethanol extract of rind, leaf and seed of p. speciosa and its correlation to total phenolic content of the extracts. keywords: activity; content; extract; leaf; phenolic; rind; seed; speciosa; total cache: jsti-134.pdf plain text: jsti-134.txt item: #7 of 141 id: jsti-135 author: Mardiyanto, Mardiyanto; Fithri, Najma Annuria; Tandry, Martina title: Characterization and Optimization of Capryol-90, Polysorbate-80, And Peg-400 Proportion in Mefenamic Acid Self Nanoemulsifying Drug Delivery System (SNEDDS) With Simplex-Lattice-Design date: 2018-10-26 words: 6292 flesch: 52 summary: 2.8.6 Diameter, PDI, and Zeta Potensial SNEDDS Glob- ules SNEDDS mefenamic acid 500 µL was dropped into 5 mL aquabidest (emulsion 1:10) on a magnnetic stirrer 150 rpm, then stirred for 1 hour. Result of % drug content SNEDDS mefenamic acid (Table 3) showed that run 13 (93.04 %) has the highest % drug © 2018 keywords: acid; capryol-90; content; dissolution; drug; formula; mefenamic; peg-400; phase; polysorbate-80; run; self; snedds cache: jsti-135.pdf plain text: jsti-135.txt item: #8 of 141 id: jsti-14 author: Theresa, Monica; Ginting, Santa Oktavia title: Impregnation of bentonite with cellulose as adsorbent of congo red date: 2017-06-29 words: 6904 flesch: 56 summary: The optimum enthalpy (ΔH) of cellulose bentonite was 143.13 kJ/mol and the minimum entropy (ΔS) at concentration of 40 mg/L was 0.207 kJ/mol. Effects of concentration and temperature adsorption The influence of thermodynamic adsorption congo red dye by activated bentonite (control), cellulose and bentonite extraction re- sults impregnated cellulose is done through a series of experiments with varying concentrations of congo red dye adsorption and tem- perature. keywords: adsorbent; adsorption; bentonite; cellulose; cm-1; concentration; congo; control; dye; process; red cache: jsti-14.pdf plain text: jsti-14.txt item: #9 of 141 id: jsti-141 author: Gofar, Nuni; Diana, Andi; Setianingsih, Eka title: Potential of Anabaena Azollae Extract as Antimicrobial Agent For Paddy Crop Disease date: 2018-10-26 words: 3000 flesch: 50 summary: There was signi�cant di�erent between inhibitory zone diameter of bacterial activity by A. azollae extract from leaves of A. microphylla and A. pinnata using the same solvent, either ethyl acetate or methanol. How- ever, there was no signi�cant di�erent between inhibitory zone diameter of P. oryzae fungus activity by A. azollae extract from leaves of A. microphylla and A. pinnata using the same solvent, either ethyl acetate or methanol. keywords: azolla; ethyl; extract; fungus; methanol; oryzae; pinnata cache: jsti-141.pdf plain text: jsti-141.txt item: #10 of 141 id: jsti-150 author: Novia, Novia; Pareek, Vishnu K; Hermansyah, Hermansyah; Jannah, Asyeni Miftahul title: Effect of Dilute Acid - Alkaline Pretreatment on Rice Husk Composition and Hydrodynamic Modeling with CFD date: 2019-01-27 words: 4040 flesch: 56 summary: E�ect of Di�erent Pretreatment on the Composition of Rice Husk 4. CONCLUSIONS A SEM-EDX investigation recorded that alterations in mi- crostructure were observed, since a huge fraction of lignin was reduced by alkaline pretreatment. The first stage was the dilute acid pretreatment with sulfuric acid concentration of 1% to 5% (v/v) at 85°C for 60 minutes, and alkaline pretreatment with NaOH concentration of 1% to 5% (w/v) at 85oC for 30 minutes separately. keywords: acid; alkaline; alkaline pretreatment; content; dilute; husk; lignin; pretreatment; rice; technology cache: jsti-150.pdf plain text: jsti-150.txt item: #11 of 141 id: jsti-152 author: Palapa, Neza Rahayu; Taher, Tarmizi; Said, Muhammad; Mohadi, Risfidian; Lesbani, Aldes title: Adsorption of Cobalt (II) on Layered Double Hydroxides (Mg/Al and Ca/Al) In Aqueous Medium : Kinetic and Thermodynamic Aspect date: 2018-10-26 words: 3195 flesch: 57 summary: XRD patterns of layered double hydroxides Mg/Al (a) and layered double hydroxides Ca/Al (b) 3.2 Kinetic Adsorption of Cobalt (II) on Mg/Al and Ca/Al Layered Double Hydorxides Layered double hydroxide has many potential aplications for layered double hydroxides in- cluding catalysis, adsorption and �ame retardant composite (Clark et al., 2017). keywords: adsorption; cobalt; hydroxides cache: jsti-152.pdf plain text: jsti-152.txt item: #12 of 141 id: jsti-159 author: Lesbani, Aldes title: Subject Index date: 2019-01-27 words: 83 flesch: 64 summary: Clean Water Production 8. River Water Treatment 17. keywords: total cache: jsti-159.pdf plain text: jsti-159.txt item: #13 of 141 id: jsti-162 author: Wamiliana, Wamiliana; Suharsono, Suharsono; Kristanto, Paustinus Edi title: Counting the sum of cubes for Lucas and Gibonacci numbers date: 2019-04-27 words: 3658 flesch: 92 summary: − Gn2⋅Gn−1(−1)n(G12 − G1G0 − G02)Gn By using equation (4), equation (5) becomes : −L2 − L4 − L6 keywords: fibonacci; g1g0; lucas; numbers cache: jsti-162.pdf plain text: jsti-162.txt item: #14 of 141 id: jsti-166 author: Palapa, Neza Rahayu; Saria, Yosi; Taher, Tarmizi; Mohadi, Risfidian; Lesbani, Aldes title: Synthesis and Characterization of Zn/Al, Zn/Fe, and Zn/Cr Layered Double Hydroxides: Effect of M3+ ions Toward Layer Formation date: 2019-04-27 words: 2712 flesch: 62 summary: Based on its existence, nature layered materials such as kaolinite and bentonite (Taher et al., 2018, 2017) then synthesized layered material such as layered double hydroxides or hydrotalcite (Jadhav et al., 2007; Lesbani et al., 2018; Palapa et al., 2018b). Generally, layered double hydroxides have a general formula of M2+ M3+ (OH)2(An-)x/n.yH2O where M3+ and M2+ are repre- sented the trivalent metal and divalent metal, respectively (Tichit et al., 2019; Lins et al., 2018). keywords: hydroxides; ldhs; metal cache: jsti-166.pdf plain text: jsti-166.txt item: #15 of 141 id: jsti-169 author: Yanuar, Ferra; Yozza, Hazmira; Rescha, Ratna Vrima title: Comparison of Two Priors in Bayesian Estimation for Parameter of Weibull Distribution date: 2019-07-31 words: 3594 flesch: 65 summary: Title Science and Technology Indonesia e-ISSN:2580-4391 p-ISSN:2580-4405 Vol. 4, No. 3, July 2019 Research Paper Comparison of Two Priors in Bayesian Estimation for Parameter of Weibull Distribution Ferra Yanuar1*, Hazmira Yozza1, Ratna Vrima Rescha1 1Department of Mathematics, Faculty of Mathematics and Natural Science, Andalas University, Kampus Limau Manis, 25163, Padang-Indonesia *Corresponding author: ferrayanuar@sci.unand.ac.id Abstract This present study purposes to conduct Bayesian inference to estimate scale parameters, denoted by θ, with known location parameter or β, of Weibull distribution. Keywords Bayesian inference, Weibull distribution, prior conjugate, non-informative prior, Mean Square Error Received: 20 June 2019, Accepted: 18 July 2019 https://doi.org/10.26554/sti.2019.4.3.82-87 1. keywords: distribution; i=1; prior cache: jsti-169.pdf plain text: jsti-169.txt item: #16 of 141 id: jsti-17 author: Imron, Muhammad; Said, Muhammad title: Pillarization of double layer hydroxides using H3[-PW12O40]nH2O: effect of pillarization time date: 2017-04-10 words: 3777 flesch: 53 summary: Characterization using XRD shows the optimum pillarization process at 36 hours by showing the existence of double layer hydroxides material at diffraction angle 11.69o deg, 18.30o deg and 34.71o deg. The polyoxome- talate H 3 [α-PW 12 O 40 ].nH 2 O compound obtained from the prepara- tion results is further pillarized by double layer hydroxides material. keywords: double; hours; hydroxides; layer; polyoxometalate cache: jsti-17.pdf plain text: jsti-17.txt item: #17 of 141 id: jsti-171 author: Lesbani, Aldes title: Author Index date: 2019-04-27 words: 78 flesch: 80 summary: Bimo Brata Adhitya 3. Ineke Febrina Anggraini 6. keywords: issn:2580 cache: jsti-171.pdf plain text: jsti-171.txt item: #18 of 141 id: jsti-172 author: Lesbani, Aldes title: Subject Index date: 2019-04-27 words: 84 flesch: 80 summary: Fibonacci numbers 5. Gibonacci numbers 7. keywords: ldhs cache: jsti-172.pdf plain text: jsti-172.txt item: #19 of 141 id: jsti-174 author: Mardiyanto, Mardiyanto; Untari, Budi; Fithri, Najma Annuria; Sandi, Sofia; Mawaddah, Zahrul title: The submicron particles FORMULATION OF IONIC-GELATION SUBMICRON PARTICLES LOADING EXTRACT PAPAYA LEAVES (Carica papaya L.) WITH LACTIC ACID ISOLATES: Evaluation of submicron particles for pharmaceutical application date: 2019-07-31 words: 3161 flesch: 55 summary: This work to �t the previous research regarding identi�cation of papaya extract by Gogna et al. (2015). If it produces yellow, orange and red it indicates �avonoid. keywords: acid; extract; formula; leaves; papaya; particles cache: jsti-174.pdf plain text: jsti-174.txt item: #20 of 141 id: jsti-179 author: Solihah, Indah; Herlina, Herlina; Rasyid, Riana Sari Puspita; Suciati, Tri; Khairunnisa, Khairunnisa title: A Cytotoxic Activity of Tahongai (Kleinhovia hospita Linn.) Leaves Extracts Using Brine Shrimp Lethality Test date: 2019-07-31 words: 3082 flesch: 59 summary: This study aims to determine the cytotoxic activity of tahongai leaves extracts using BSLT method. Leaves of Kleinhovia hospita L. had been reported con- tains scopoletin, kaempferol, quercetin, eleutherol and kaempferol 3-O-B-D glucoside compounds (Arung et al., 2012) 3.3 Cytotoxic activity The test of cytotoxic activity of tahongai leaves extracts were used BSLT (Brine Shrimp Lethality Test) method. keywords: activity; cytotoxic; ethanol; extract; leaves; tahongai; test cache: jsti-179.pdf plain text: jsti-179.txt item: #21 of 141 id: jsti-181 author: Untari, Budi; Wijaya, Dina Permata; Mardiyanto, Mardiyanto; Herlina, Herlina; Angraeni, Via; Firana, Ario title: Physical Interaction Of Chitosan-Alginate Entrapping Extract Of Papaya Leaf And Formation Of Submicron Particles Dosage Form: New Dossage Form to Inhibit The Dengue Diseases date: 2019-07-31 words: 4029 flesch: 56 summary: After mass 1 and mass 2 were mixed, then add distilled water for each formula to 100 mL. 2.2.6 Puri�cation of Particles and Determination of Per- cent EE Submicronn particles puri�cation of sodium alginate chitosan particles encapsulated papaya leaf extract was conducted by 30 mL of the solution inserted into Vivaspin® 300 kDa to separate submicron particles entrapping papaya leaf extract and soluble impurities in distilled water. These data indicated that papaya extract can be formulated into submicron particles of chitosan-alginate polymer. keywords: alginate; chitosan; extract; formula; leaf; papaya; particles; sodium; submicron cache: jsti-181.pdf plain text: jsti-181.txt item: #22 of 141 id: jsti-182 author: Palapa, Neza Rahayu; Taher, Tarmizi; Mohadi, Risfidian; Lesbani, Aldes title: Removal of Anionic Direct Dye Using Zn/Al, Zn/Fe and Zn/Cr Layered Double Hydroxides Toward Interlayer Distance date: 2019-07-31 words: 3960 flesch: 62 summary: Shows the data of kinetic parameters of direct dyes adsorption onto LDHs. Based on coe�cient correlation of direct dye adsorption onto layered double hydroxides was followed pseudo-second-order kinetic model. keywords: adsorption; dye; et al; hydroxides; ldhs cache: jsti-182.pdf plain text: jsti-182.txt item: #23 of 141 id: jsti-183 author: Lesbani, Aldes title: Author Index date: 2019-07-31 words: 83 flesch: 79 summary: Riana Sari Puspita Rasyid 15. Dina Permata Wijaya 5. keywords: issn:2580 cache: jsti-183.pdf plain text: jsti-183.txt item: #24 of 141 id: jsti-184 author: Lesbani, Aldes title: Subject Index date: 2019-07-31 words: 84 flesch: 66 summary: Carica Papaya L 6. Non-Informative Prior 16. keywords: issn:2580 cache: jsti-184.pdf plain text: jsti-184.txt item: #25 of 141 id: jsti-189 author: Yuliza, Evi; Puspita, F.M title: The Branch and Cut Method for Solving Capacitated Vehicle Routing Problem (CVRP) Model of LPG Gas Distribution Routes: - date: 2019-10-29 words: 2534 flesch: 66 summary: Determination of LPG gas distribution routes is completed using the Branch and Cut method. The research is a case study, LPG gas distribution routes at PT Terang Lebong in Palembang. keywords: cvrp; demand; distance; gas; model; problem; vehicle cache: jsti-189.pdf plain text: jsti-189.txt item: #26 of 141 id: jsti-19 author: Gultom, Eiffel Ostan Jeski; Lesbani, Aldes title: Synthesis and characterization of metal oxides supported keggin type polyoxometalate Rb2K2[-H2SiV2W10O40].nH2O date: 2017-04-10 words: 4853 flesch: 70 summary: Polyoxometalate Rb 2 K 2 [γ-H 2 SiV 2 W 10 O 40 ].nH 2 O (1g) was dissolved in methanol (10 mL) (solution A). Gultom et al. 2017/Science & Technology Indonesia 2 (2) 2017:50-55 © 2017 Published under the term of the CC BY NC SA 4.0 licence 51 Synthesis Rb2K2[γ-H2SiV2W10O40].nH2O (Nakagawa et.al, 2005) Polyoxometalate Rb 2 K 2 [γ-H 2 SiV 2 W 10 O 40 ].nH 2 O was synthesis from K 8 keywords: figure; siv cache: jsti-19.pdf plain text: jsti-19.txt item: #27 of 141 id: jsti-196 author: Palapa, Neza Rahayu; Rahayu, Bakri Rio; Taher, Tarmizi; Lesbani, Aldes; Mohadi, Risfidian title: Kinetic Adsorption of Direct Yellow Onto Zn/Al and Zn/Fe Layered Double Hydroxides date: 2019-10-29 words: 2611 flesch: 61 summary: This research was removal direct yellow using layered double hydroxides (LDH) by adsorption method. Is caused layered double hydroxides has available active site be- fore equilibrium, so that layered double hydroxides can adsorb rapidly. keywords: adsorption; hydroxides; ldh; order; yellow cache: jsti-196.pdf plain text: jsti-196.txt item: #28 of 141 id: jsti-199 author: Lesbani, Aldes title: Author Index date: 2019-10-30 words: 67 flesch: 79 summary: Bakri Rio Rahayu 3. Delianis Pringgenies 4. Neza Rahayu Palapa 10. keywords: issn:2580 cache: jsti-199.pdf plain text: jsti-199.txt item: #29 of 141 id: jsti-21 author: Septiani, Triayu; Hidayati, Nurlisa; Mohadi, Risfidian title: Calcium oxide from Pomacea canaliculata and Babylonia spirata snails date: 2017-07-08 words: 2061 flesch: 55 summary: If the vibration of decomposed material is similar with standard, then decomposition of golden snail and lion snail shell is successfully conducted. Although de- composed material has small peak vibration of calcium carbonate but according to XRD powder patterns in Figure 1 and 2, we can conclude that decomposition of golden snail and lion snail shells is successfully conducted at 900 oC and physical properties of de- composed material similar with calcium oxide standard. keywords: calcium; decomposition; lion; oxide; snail cache: jsti-21.pdf plain text: jsti-21.txt item: #30 of 141 id: jsti-22 author: Sari, Intan Permata; Said, Muhammad; Lesbani, Aldes title: Pillarization of layer double hydroxides (Mg/Al) with keggin type K4[α-SiW12O40]•nH2O and its application as adsorbent of procion red dye date: 2017-07-08 words: 4499 flesch: 57 summary: Probably due to of layer activity after pillariza- tion can create reactivity of pillared layer double hydroxides. One example of a layered double hy- droxide compounds synthesized double layer. keywords: adsorption; double; hydroxides; layer; procion; red; siw cache: jsti-22.pdf plain text: jsti-22.txt item: #31 of 141 id: jsti-223 author: Ramadhan, Rahmawati; Devianto, Dodi title: A Hidden Markov Model for Forecasting Rainfall Data Availability at the Weather Station in West Sumatra date: 2020-04-30 words: 5221 flesch: 62 summary: As for decoding problem on HMM using the Viterbi algorithm can be concluded that for the period of one day ahead might be probabilities rainfall data availability in MM station, PPC station, and SBG station will be more widely available. The results of probability rainfall data availability can available. keywords: data; markov; probability; rainfall; state; station; ⎢ ⎢; ⎥ ⎥ cache: jsti-223.pdf plain text: jsti-223.txt item: #32 of 141 id: jsti-229 author: Desviona, Nayla; Yanuar, Ferra title: Simulation Study of Autocorrelated Error Using Bayesian Quantile Regression date: 2020-07-22 words: 2827 flesch: 61 summary: CONCLUSIONS This study used a simulation study to apply the quantile re- gression and Bayesian quantile regression methods for auto- correlated errors. Linear equations for quantile � can be written with the equation : Y = X ′ i �(�) + (1) The general estimation for it to � can be written as follows: argmin x ′ i ���R n ∑ i=1 � � (yi − Q�(Y |X)) keywords: bayesian; data; method; quantile; regression cache: jsti-229.pdf plain text: jsti-229.txt item: #33 of 141 id: jsti-231 author: Resti, Yulia; Burlian, Firmansyah; Yani, Irsyadi; Zayanti, Des Alwine; Sari, Indah Meiliana title: Improved the Cans Waste Classification Rate of Naïve Bayes using Fuzzy Approach date: 2020-07-22 words: 3002 flesch: 67 summary: = P(Kj)P(X1,X2,X3 3 ∏ d=1 P(Xd |Kj) (1) Third, classify each can of observations in the test data using the ONB model obtained in step 2 and create a confusion matrix as Table 2 to obtain an accurate level of classi�cation as in equa- tion (2), where Tjj be the percentage of cans coming from the j-th cans type predicted exactly to the j-th cans type, whereas Fjl is the percentage of the number of cans coming from the j-th cans type predicted to the l-th cans type. A fuzzy based feature selection from independent component subspace for machine learning classi�cation of microarray data. keywords: accuracy; cans; cation; classi; data; model cache: jsti-231.pdf plain text: jsti-231.txt item: #34 of 141 id: jsti-235 author: Hidayati, Nurlisa; Mohadi, Risfidian; Elfita, Elfita; Lesbani, Aldes title: Malachite Green Removal by Zn/Al-citrate LDHs in Aqueous Solution date: 2020-04-30 words: 2185 flesch: 52 summary: E�ect of time contact on malachite green adsorption onto Zn/Al LDHs Table 1. Fig 1 shows malachite green adsorption on LDHs as function of contact time. keywords: adsorption; citrate; green; ldhs cache: jsti-235.pdf plain text: jsti-235.txt item: #35 of 141 id: jsti-237 author: Lesbani, Aldes title: Author Index date: 2020-04-30 words: 79 flesch: 82 summary: Bela Olivia Mareta Silaen 4. Fitri Maya Puspita 10. keywords: issn:2580 cache: jsti-237.pdf plain text: jsti-237.txt item: #36 of 141 id: jsti-239 author: Octarina, Sisca; Juita, Devi Gusmalia; Eliyati, Ning; Bangun, Putra Bahtera Jaya title: Set Covering Model in Solving Multiple Cutting Stock Problem date: 2020-10-09 words: 6929 flesch: 84 summary: Cutting patterns according to the length of 1200 mm The The length for each cutting pattern Cut Loss j-th cutting pattern 282 mm 280 mm 235 mm 164 mm (mm) 1 3 0 0 2 26 2 2 1 0 2 28 3 2 0 2 1 2 4 1 2 0 2 30 5 1 1 2 1 4 6 1 0 3 1 49 7 1 0 1 4 27 8 0 3 0 2 32 9 0 2 2 1 6 10 0 1 3 1 51 11 0 1 1 4 29 12 0 0 5 0 25 13 0 0 3 3 3 14 0 0 0 7 52 �02 + 2�04 + 3�07 + �08 + �09 − 10 ∑ j=1 �3j = 0 (8) 3�01 + 2(�02 + �03) + �04 + �05 + �06 − 23 ∑ j=1 �3j = 0 (9) 12�11 + 10�12 + 8�22 + 6�23 + 4�24 + 9�31 + 2�32 +7�34 + 5�35 + 3�36 + �37 + 4�38 + 2�39 + 8�41 + 6�42 +4�43 + 2�44 + 4�25 + 4�54 + 2�46 + 2�48 + �410 + 7�411 + 5�412 +5�414 + 3�415 + 3�415 + 3�416 + �417 + �418 + 3�419 + �420 + 2�421 ≥ 20 (10) �21 + 2�22 + 3�23 + 4�24 + 4�23 + 5�33 + �35 + 2�36+ 3�37 + �103 + �412�24 + 3�43 + 4�44 + 2�45 + 3�46+ 4�47 + 2�48 + 3�49 + 4�413 + �415 + �417 + 2�420 + �422 ≥ 20 (11) �31 + �322 + 2�35 + 2�36 + 2�37 + 3�38 + 4�39 + 4�310 + 4�411 + �411 + �413+ �414 + �415 + �416 + �417 + �418 + 2�419 + 2�420 + 3�421 + 3�422 + 3�423 ≥ 20 (12) �41 + �42 + �43 + �44 + 2�45 + 2�46 + 2�47 + 3�48 + 3�49 + 5�410 +�411 + �412�413 + 2�414 + 2�415 + 3�416 + 3�317 + 4�418+ �39 + 4�310 + 4�411 + �419 + �420 + �421 + �422 + �423 ≥ 20 (13) � ≥ 0 Minimize z = 14 ∑ j=1 �0j (15) Subject to 2(�01 +�02 +�04 +�05 +�06) +�09 +�010 + 3�013 + 7�014 −�11 = 0 (16) 2�03 +2�05 +3�06 +�07 +2�09 +3�010+�011+5�012+3�013− 4 ∑ j=1 �2j = 0 (17) �02 + 2�04 + �05 + 3�08 + 2�09 + �010 + �011 − 10 ∑ j=1 �3j = 0 (18) 3�01 + 2�02 + 2�03 + �04 + �05 + �06 + �07 − 23 ∑ j=1 �4j = 0 (19) With Equations (10)-(13) � ≥ 0 keywords: + �; cutting; model; pattern cache: jsti-239.pdf plain text: jsti-239.txt item: #37 of 141 id: jsti-241 author: Sulaiman, Nur Fatin; Yacob, Abdul Rahim; Lee, Siew Ling title: Transesterification Reaction from Rice Bran Oil to Biodiesel over Heterogeneous Base Calcium Oxide Nanoparticles Catalyst date: 2020-07-22 words: 5986 flesch: 58 summary: In the biodiesel production, transesteri�cation reaction is the most widely studied utilizing alkaline earth metal oxide as solid base catalyst (Mazaheri et al. (2018); Dawood et al. (2018); Shan et al. (2016)). at 600 ºC, (g) CaO-700 at 700 ºC, and (h) CaO-800 at 800 ºC 3.1.3 X-ray Di�raction (XRD) Analysis Figure 3 shows the XRD di�ractograms for all prepared CaO samples at di�erent calcination temperatures from 100 to 700°C, while Table 1 represents XRD peaks assignment for CaO-600 and CaO-700. keywords: analysis; biodiesel; caco3; cao; cao-700; catalyst; figure; methyl; oil; ppm; reaction; temperature cache: jsti-241.pdf plain text: jsti-241.txt item: #38 of 141 id: jsti-247 author: Gusti, Nina; Oktarina, Dinda; Elvia, Rina; Nursa’adah, Euis; Wardhana, Rendy W; Sudaryono, Agus; Firdaus, M. Lutfi title: Facile Detection of Oil Adulteration using UV-Visible Spectroscopy Coupled with Chemometrics Analysis date: 2021-01-13 words: 3132 flesch: 54 summary: 2. EXPERIMENTAL SECTION 2.1 Materials Dilution of oil samples were conducted by using n-hexane as a solvent. Various genuine oils were identi�ed as a cluster between -5 to -10 (PC-1) and -2 to +1 (PC-2), while those of adulterated oils were located between +5 to +10 (PC-1) and +2 to +7 (PC-2). keywords: analysis; chemometrics; oil; oils; pls; samples cache: jsti-247.pdf plain text: jsti-247.txt item: #39 of 141 id: jsti-249 author: Resti, Yulia; Burlian, Firmansyah; Yani, Irsyadi title: Performance of Cans Classification System for Different Conveyor Belt Speed using Naïve Bayes date: 2020-10-09 words: 4062 flesch: 66 summary: Naïve Bayes is one method that is widely used in classi- �cation models (Harzevili and Alizadeh, 2018; Agarwal et al. (2015)) especially digital object classi�cation models can be seen in (Mansour (2018); Pérez-Díaz et al. Measuring the performance of can classi�cation for each conveyor-belt type data (�rst speed and second speed) and both model assumptions; original model (OM) and model based on best distribution (BM). keywords: cans; classi; data; distribution; input; model; type cache: jsti-249.pdf plain text: jsti-249.txt item: #40 of 141 id: jsti-252 author: Lesbani, Aldes title: Subject Index date: 2020-07-24 words: 81 flesch: 54 summary: Bayesian Quantile Regression Method 4. Censored Quantile Regression 7. keywords: regression cache: jsti-252.pdf plain text: jsti-252.txt item: #41 of 141 id: jsti-253 author: Lesbani, Aldes title: Author Index date: 2020-07-24 words: 66 flesch: 78 summary: Indah Meiliana Sari 6. Abdul Rahim Yacob 2. keywords: issn:2580 cache: jsti-253.pdf plain text: jsti-253.txt item: #42 of 141 id: jsti-261 author: Fitrya, Fitrya; Fithri, Najma Annuria; Amriani, Annisa; Haryati, Annisa; Wijaya, Dina Permata title: Preparation and Characterization of Petai Pods Extract (Parkia speciosa Hassk.) Loaded Ethosomes date: 2021-01-13 words: 4568 flesch: 53 summary: The di�usion analysis showed highest on ethosome of petai pods extract (9.525%) than petai pods extract (5.466%). The ethosomes optimum formula produces a higher di�use per- cent compared to petai pods extract. keywords: ethanol; ethosomes; extract; glycol; lecithin; petai; petai pods; pods; propylene cache: jsti-261.pdf plain text: jsti-261.txt item: #43 of 141 id: jsti-264 author: Lesbani, Aldes title: Subject Index date: 2020-10-09 words: 89 flesch: 52 summary: Conveyor Belt Speed 5. Cutting Stock Problem 6. keywords: issn:2580 cache: jsti-264.pdf plain text: jsti-264.txt item: #44 of 141 id: jsti-267 author: Yuliza, Evi; Puspita, Fitri Maya; Supadi, Siti Suzlin title: Heuristic Approach For Robust Counterpart Open Capacitated Vehicle Routing Problem With Time Windows date: 2021-04-21 words: 3867 flesch: 72 summary: Parameters Parameters Description cij distance between TDS i to TDS j and the distance of each TDS to FDS qi load of waste transport vehicles tij travel time from TDS i to TDS j. ai departure time from TDS i bj vehicle arrival time at TDS j Table 5. The RCOCVRP model with time windows to optimize the route problems of waste transport vehicles that is solved using the cheapest insertion heuristics algorithm is more e�ective than the nearest neighbor method. keywords: model; problem; routing; tds; time; vehicle; waste; windows cache: jsti-267.pdf plain text: jsti-267.txt item: #45 of 141 id: jsti-281 author: Leong, Cheng Yee; Lo, Ye Shen; Koh, Pei Wen; Lee, Siew Ling title: Synthesis of Titanium Dioxide Nanotubes with Different N-Containing Ligands via Hydrothermal Method date: 2021-04-21 words: 4816 flesch: 50 summary: Hydrothermal synthesis is a facile and preferable route for the synthesis of TiO2 nanotubes since the products prepared by this method have well crystalline phase, which benets to ther- mal stabilityof the nanosized materials. Even so, traditional hy- drothermal synthesis of TiO2 nanotubes often requires highly concentrated alkali such as 10 to 12 M of KOH or NaOH (Kasuga et al., 1998). keywords: activity; diethylenetriamine; ethylenediamine; ligands; methylamine; photocatalytic; recombination; samples; tio2; tnt cache: jsti-281.pdf plain text: jsti-281.txt item: #46 of 141 id: jsti-29 author: Sitompul, Sabat Okta Ceria; Mohadi, Risfidian title: Preparation of calcium oxide from cattle bones as catalyst for conversion of waste cooking oil to biodiesel date: 2017-07-08 words: 3417 flesch: 61 summary: Iod value of biodiesel product The result of the determination of Iodine number of biodiesel prod- uct obtained average value from repetition 3 times is 16.92 g/100 g for cattle bone catalyst. The results of the analysis of methyl ester density were measured with three repetitions of the average values obtained are 0.8844g/cm 3 for cattle bones catalyst. keywords: biodiesel; bones; calcium; cao; catalyst; cattle; cooking; oil cache: jsti-29.pdf plain text: jsti-29.txt item: #47 of 141 id: jsti-290 author: Yusof, Norliza Muhamad; Alias, Iman Qamalia; Kassim, Ainee Jahirah Md ; Zaidi, Farah Liyana Natasha Mohd title: Determining the Credit Score and Credit Rating of Firms using the Combination of KMV-Merton Model and Financial Ratios date: 2021-07-22 words: 5352 flesch: 63 summary: Based on Tables 9 and 10, we found that Sime Darby and TNB can be categorized as �rms with low default risk and stable �rms, and thus, both �rms were given maximum scores in PD and three out of �ve �nancial ratios. The following is how the rest of the paper is organized: The second section explains the research methods, including data setting, default probability estimations, calculating weightages and credit scores, and assessing �rm credit ratings. keywords: credit; default; merton; model; ratios; risk; rms; score; table cache: jsti-290.pdf plain text: jsti-290.txt item: #48 of 141 id: jsti-291 author: Fitrya, Fitrya; Fithri, Najma Annuria; Untari, Budi; Aprililianti title: Tablet Formula Optimization From Helminthostachys Zaylanica Extract Using A Simplex Lattice Design date: 2021-07-22 words: 3775 flesch: 52 summary: Optimization of tablet formula was designed using a simplex lattice design (DXr8 software, USA). 3. RESULTS AND DISCUSSION 3.1 Granules Properties Experimental design of tablet formula using DXr8 software was produced eight formulas (F1-F8) showed in Table 1. keywords: concentration; disintegration; dissolution; extract; formula; properties; pva; starch; tablet; time cache: jsti-291.pdf plain text: jsti-291.txt item: #49 of 141 id: jsti-3 author: Minaria, Minaria; Mohadi, Risfidian title: Preparation and characterization of calcium oxide from crab shells (Portunus pelagicus) and its application in biodiesel synthesis of waste cooking oil, palm and coconut oil date: 2017-06-21 words: 4754 flesch: 57 summary: Calcium oxide catalyst ob tained was applied in the synthesis of biodiesel from used cooking oil, palm oil and coconut oil. At decomposition temperature 1100 ºC, CaO peak becomes weaker that is with intensity at 276, 855 , 122 and 102 at 2θ: 32.2 º, 37.4 º, 64.2 º, 67.4 º. Based on the diffraction pattern obtained and matching with the existing JCPDS standard then the solids taken with decomposition temperature 1000 ºC as the best decomposition result because the peak of CaO on the decomposition at temperature 1000 ºC the highest intensity is 1377. keywords: biodiesel; cao; coconut; cooking; crab; decomposition; oil; palm; shell; standard; temperature cache: jsti-3.pdf plain text: jsti-3.txt item: #50 of 141 id: jsti-314 author: Wijaya, Alfan; Bahar Nur Siregar, Patimah Mega Syah; Priambodo, Aldi ; Palapa, Neza Rahayu ; Taher, Tarmizi; Lesbani, Aldes title: Innovative Modified of Cu-Al/C (C = Biochar, Graphite) Composites for Removal of Procion Red from Aqueous Solution date: 2021-10-18 words: 4616 flesch: 56 summary: All results showed that LDH has a limitation as adsorbent for reuse process, thus modication of LDH is needed to enhance the ability of LDH for dyes adsorption. Application of magnetically modied sewage sludge ash (SSA) in ionic dye adsorption. keywords: adsorbent; adsorption; composites; dye; et al; ldh; process cache: jsti-314.pdf plain text: jsti-314.txt item: #51 of 141 id: jsti-319 author: Yahya, Amri ; Rubiyanto , Dwiarso; Fatimah, Is title: Heterogeneous Catalytic Conversion of Citronellal into Isopulegol and Menthol: Literature Review date: 2021-07-22 words: 11178 flesch: 44 summary: The presence of Lewis and Bronsted acid catalyst sites is very important in the citronellal cyclization reaction, as depicted in the reaction mechanism proposed in Figure 5 (Álvarez-Rodríguez et al., 2012; Fatimah et al., 2014; Ravasio et al., 2000; Sudiyarmanto et al., 2017). This is also identied by the use of Ni-supported material on clay minerals (Fatimah et al., 2015; Fatimah et al., 2016). keywords: acid; acidity; activity; catalysis; catalyst; citronellal; clay; conversion; cyclization; et al; extraction; isopulegol; lewis; materials; menthol; metal; oil; reaction; science; selectivity; surface; synthesis cache: jsti-319.pdf plain text: jsti-319.txt item: #52 of 141 id: jsti-333 author: Hiras Habisukan, Ummi; Elfita, Elfita; Widjajanti, Hary ; Setiawan, Arum title: Chemical Characterization of Secondary Metabolite from the Endophytic Fungus Trichordema reecei isolated from The Twig of Syzygium aqueum date: 2021-07-22 words: 3645 flesch: 47 summary: Explorationof bioactive compounds from Endophytic fungi is easier and cheaper because they do not require a large area, a short growingtime, and uncomplicated mixed compounds. Endophytic fungi are new and patent base secondary metabolites but they are notextensively characterized and investigated for the exploration of raw materials for drugs. keywords: antioxidant; aqueum; compound; endophytic; figure; fungi; isolation; metabolites; plant; ppm cache: jsti-333.pdf plain text: jsti-333.txt item: #53 of 141 id: jsti-338 author: Desiani, Anita; Rustiana Dewi, Novi; Fauza, Annisa Nur ; Rachmatullah, Naufal; Arhami, Muhammad; Nawawi, Muhammad title: Handling Missing Data Using Combination of Deletion Technique, Mean, Mode and Artificial Neural Network Imputation for Heart Disease Dataset date: 2021-10-18 words: 7362 flesch: 57 summary: 3.3 Filling in Imputation Missing data to Dataset The data that has been obtained from the results of technique and method of handling missing data on returned into the © 2021 To handle missing data, there are several waysincluding deletion, imputation by mean, mode, or with prediction methods. keywords: accuracy; ann; attribute; classication; data; dataset; disease; et al; heart; imputation; layer; mean; method; results; value cache: jsti-338.pdf plain text: jsti-338.txt item: #54 of 141 id: jsti-34 author: admin title: Preface date: 2017-07-08 words: 159 flesch: 42 summary: Science and Technology Indonesia is developed for all scientists to create scientific atmosphere not only in Indonesia but also in the world. Science and Technology Indonesia will publish articles quarterly January, April, July, and October every year. keywords: science cache: jsti-34.pdf plain text: jsti-34.txt item: #55 of 141 id: jsti-351 author: Rahmatullah; Wulandari Putri, Rizka; Rendana, Muhammad; Waluyo, Untung; Andrianto, Tedi title: Effect of Plasticizer and Concentration on Characteristics of Bioplastic Based on Cellulose Acetate from Kapok (Ceiba pentandra) Fiber date: 2022-01-27 words: 8688 flesch: 58 summary: Kapok �ber has the potential to be the raw material of cellulose acetate for bioplastic production due to the content of cellulose about 35%-64% (Chaiarrekij et al., 2012). (2019) analyzed the e�ect of adding the type and concentration of plasticizers on the qual- ity of cellulose-based bioplastics from oil palm empty fruit bunches. keywords: acetate; addition; ber; bioplastic; cellulose; cellulose acetate; cm−1; concentration; density; glycerol; kapok; plasticizer; results; sorbitol; type; value; water cache: jsti-351.pdf plain text: jsti-351.txt item: #56 of 141 id: jsti-353 author: Palapa, Neza Rahayu; Taher, Tarmizi; Wijaya, Alfan; Lesbani, Aldes title: Modification of Cu/Cr Layered Double Hydroxide by Keggin Type Polyoxometalate as Adsorbent of Malachite Green from Aqueous Solution date: 2021-07-22 words: 5824 flesch: 55 summary: Xu et al., 2018b). Xu et al. (2018a) reported that ZnAlFe-polyoxometalate was applied as an adsorbent to remove methylene blue in an aqueous so- lution and obtained an adsorptive capacity is 67.47 mg/g. Bi et al. (2011), also reported that ZnAl-[PW10Mo2O40]5− was conducted to remove cationic dyes. keywords: adsorbent; adsorption; cucr-[𝛼-siw12o40; double; dyes; et al; green; ldhs; materials; process; solution cache: jsti-353.pdf plain text: jsti-353.txt item: #57 of 141 id: jsti-358 author: Rahmadan, Jeri; Parhusip, Veronika; Palapa, Neza Rahayu; Taher, Tarmizi; Mohadi, Risfidian; Lesbani, Aldes title: ZnAl-Humic Acid Composite as Adsorbent of Cadmium(II) From Aqueous Solution date: 2021-10-18 words: 6877 flesch: 52 summary: The equilibrium of Cd(II) adsorp- tion using ZnAl pristine was reached at 120 minutes and the equilibrium of the HA/ZnAl composite was reached at 90 min- utes. aldeslesbani@pps.unsri.ac.id AbstractThe modified ZnAl composites with humic acid (HA/ZnAl composite) were a coprecipitation method used as an adsorbent to removecadmium(II) in an aqueous solution. keywords: acid; adsorbent; adsorption; capacity; cd(ii; composite; et al; ldh; process; solution; surface; znal cache: jsti-358.pdf plain text: jsti-358.txt item: #58 of 141 id: jsti-366 author: Yani, Irsyadi ; Resti, Yulia; Burlian, Firmansyah ; Yani, Ansyori title: Prediction of Plastic-Type for Sorting System using Fisher Discriminant Analysis date: 2021-10-18 words: 3499 flesch: 59 summary: This work has four main steps: collecting plastic digital image data, forming statistical tests,predicting plastic types, and evaluating prediction performance. However, inadequate sorting of plastic types can result in cross-contamination and increasing industrialoperating costs. keywords: analysis; data; discriminant; plastic; types cache: jsti-366.pdf plain text: jsti-366.txt item: #59 of 141 id: jsti-37 author: admin title: Preface date: 2017-07-08 words: 128 flesch: 61 summary: We also invite all researchers in the world to submit article to Science and Technology. The article will be reviewed by corresponding scientist according to the field of article. keywords: article cache: jsti-37.pdf plain text: jsti-37.txt item: #60 of 141 id: jsti-375 author: Hermanto, Dhony; Ismillayli, Nurul ; Herdiyanti, Nindi ; Kamali, Siti Raudhatul ; Aulia, Soraya title: Validation of Mercury Speciation Analysis in River Around Artisanal Small-Scale Gold Mining Area in West Nusa Tenggara, Indonesia date: 2022-07-28 words: 4899 flesch: 52 summary: Title Science and Technology Indonesia e-ISSN:2580-4391 p-ISSN:2580-4405 Vol. 7, No. 3, July 2022 Research Paper Validation of Mercury Speciation Analysis in River Around Artisanal Small-Scale Gold Mining Area in West Nusa Tenggara, Indonesia Dhony Hermanto1*, Nurul Ismillayli1, Nindi Herdiyanti1, Siti Raudhatul Kamali1,2, Soraya Aulia3 1Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Mataram, Mataram, 83125, Indonesia2Department of Applied Chemistry, Chaoyang University of Technology, Wufeng, 41349, Republic of China3Laboratory Center of Health Testing and Calibration, West Nusa Tenggara Provincial Health Office, Mataram, 83121, Indonesia *Corresponding author: dhony.hermanto@unram.ac.id AbstractA method for determining mercury concentration using a mercury analyzer in a river water sample was validated according toISO/IEC 17025. A blank solution was prepared by mixing the standard reagent for 100 mL of sample (consisting of 1000 `L KBr-KBrO3 and 50 `L hydroxylamine hydrochloride 12%) and dd water up to a volume of 100 mL. Variation of mercury concentration was obtained by mixing some mercury stock solutions with standard reagent and diluted with dd water according to the required concentration. keywords: analytical; concentration; determination; fraction; mercury; method; river; sample; species; water cache: jsti-375.pdf plain text: jsti-375.txt item: #61 of 141 id: jsti-376 author: Veanti, Desak Putu Okta; Virgianto, Rista Hernandi; Astiduari, I Gusti Ayu Putu Putri title: The Impact of Climate Change on Cooling Energy Demand in Indonesia Based on Representative Concentration Pathways (RCP) Scenarios date: 2022-01-27 words: 5448 flesch: 65 summary: 2. EXPERIMENTAL SECTION 2.1 Research Area and Datasets The research area in this study is limited to Indonesia area in the coordinates of 88°E – 144°E and 10°N – 14°S. Part of Malaysia which is located in Kalimantan Island and Brunei Darussalam is included in study area to see the whole picture of Kalimantan Island. Based on the RCP8.5 scenario, in 2050, the change of Ew in most of Indonesia area is also less than 17 kWh/m2 year. keywords: cdd; change; climate; cooling; energy; indonesia; temperature; year cache: jsti-376.pdf plain text: jsti-376.txt item: #62 of 141 id: jsti-379 author: Fatimah, Is; Ulfiyani Zaenuri, Faiha; Narulita Doewandono, Lolita; Yahya, Amri; Widya Citradewi, Putwi; Sagadevan, Suresh; Oh, Won-Chun title: Biogenic Silica Extracted from Salacca Leaves Ash for The Adsorption of Salycilic Acid date: 2021-10-18 words: 4284 flesch: 50 summary: Based on this background, this research was aimed to use biogenic silica extraction from the ash of Salacca leaves for SA adsorption. Therefore, biogenic silica extraction for SA adsorption, considering the extraction method for creating specic physicochemical characteristics as an adsorbent, was performed in this study. keywords: acid; adsorption; biogenic; figure; salicylic; science; silica; sio2; surface cache: jsti-379.pdf plain text: jsti-379.txt item: #63 of 141 id: jsti-388 author: Ansori, Muslim; Wamiliana; Puri, Fadila Cahya title: Determining The Number of Connected Vertex Labeled Graphs of Order Seven without Loops by Observing The Patterns of Formula for Lower Order Graphs with Similar Property date: 2021-10-18 words: 4570 flesch: 78 summary: (2014) used graph concept to describe or rep- resent the possible modes of action for any given pharmaco- logical compound; in engineering and computer science, Hsu and Lin (2009) exposed a lot of graph theoretical concepts including Hamiltonian circuits with relation in network design, Al Etaiwi (2014) in order to generate a complex cipher text used the concepts minimum spanning tree, complete graph and cycle graph, Priyadarsini (2015) investigate the use of graph theory concept, extremal and expander graphs in de- signing some ciphers, while Ni et al. (2021) use bipartite and corona graphs to create ciphers; in economics, Álvarez and Ehnts (2015) used directed graph to represent the dynamic closures of the accounting structure; in agriculture, Kawakura and Shibasaki (2018) used graph theory concepts to group agricultural workers engaging in manual tasks, Kannimuthu et al. keywords: edges; graph; m−1; number; order; × c cache: jsti-388.pdf plain text: jsti-388.txt item: #64 of 141 id: jsti-397 author: Yahya, Abdullah; Najir Tokachil, Mohd; Hamzah, Hasilatul Hana; Pirman, Shahriel Mohd Saifullah ; Muhammad, Siti Asiah Che title: Coefficient Bound of a New Generalized Class of Tilted Analytic Univalent Functions date: 2022-01-27 words: 3057 flesch: 80 summary: [(−s+ t)(s−1)(t −1)] = 1 Rewrite the equation (9) will yield to f (z)= w∫ 0 [ 1− ( (−e−2iθ +2αe−iθ)s (t − s) − (2Aθαe−iθ)s2 (t − s)(s−1) ) ∫ x ∞∑ 0 ∫ x ∞∑ 2 [ (sx)n−1 n ] dµ(x)zn + ( (−e−2iθ +2αe−iθ)t (t − s) − (2Aθαe−iθ)t2 (t − s)(t −1) ) keywords: functions; t)(−1 cache: jsti-397.pdf plain text: jsti-397.txt item: #65 of 141 id: jsti-399 author: Indrawati; Puspita, Fitri Maya; Resmadona; Yuliza, Evi; Dwipurwani, Oki ; Octarina, Sisca title: Analysis of Information Service Pricing Scheme Model Based on Customer Self-Selection date: 2021-10-18 words: 5206 flesch: 68 summary: To maximize the Equation, a dierentiation is made to M1 and N1; under the conditions of 𝜕Op 𝜕M1 = 0 and 𝜕Op 𝜕N1 = 0 ↔ 𝜕(x1M1 + y1N1 − RmM1 − RnN1 − (k + l)M1 − (k + l)N1) 𝜕M1 = 0 ↔ x1(k + l) = Rm and ↔ 𝜕(x1M1 + y1N1 − RmM1 − RnN1 − (k + l)M1 − (k + l)N1) keywords: customers; demand; end; pricing; scheme cache: jsti-399.pdf plain text: jsti-399.txt item: #66 of 141 id: jsti-4 author: Sari M A, Yunita; Situngkir, Maria Danesti title: Thermal stability of polyoxometalate compound of Keggin K8[2-SiW11O39]∙nH2O supported with SiO2 date: 2017-06-21 words: 5416 flesch: 51 summary: FTIR spectra of polyoxometalate compound K8[2- SiW11O39]∙nH2O FTIR spectrum of polyoxometalate compound K8[2- SiW11O39]∙nH2O (A), FTIR spectra of polyoxometalate compound K8[2-SiW11O39]∙nH2O. Saturation with ammonia (B), FT-IR spectra of polyoxometalate compound K8[2- SiW11O39]∙nH2O saturation with pyridine (C) Polyoxometalate compound K8[2-SiW11O39]∙nH2O compounds with saturation with pyridine in Figure 5 (C) exhibit an –OH shift vibration appearing at a 3425.58 cm-1 wave number identifying H2O in a polyoxometalate compound K8[2- SiW11O39]∙nH2O. keywords: cm-1; compound; compound k8[2; figure; k8[2; k8[2siw11o39]∙nh2o; polyoxometalate; polyoxometalate compound; sio2; siw11o39]∙nh2o cache: jsti-4.pdf plain text: jsti-4.txt item: #67 of 141 id: jsti-414 author: Leong, Cheng Yee; Teh, Hao Lin; Chen, Man Ching; Lee, Siew Ling title: Effect of Synthesis Methods on Properties of Copper Oxide Doped Titanium Dioxide Photocatalyst in Dye Photodegradation of Rhodamine B date: 2022-01-27 words: 5084 flesch: 53 summary: Meanwhile, the size of Cu TiO2 sample observed from the FESEM image was estimated in the range from 120 to 240 nm. 2:98 Cu TiO2 Sonochemical, (c) 2:98 Cu TiO2 Impregnation and (d) 2:98 keywords: cu tio2; light; method; molar; photocatalytic; samples; size; sonochemical; tio2 cache: jsti-414.pdf plain text: jsti-414.txt item: #68 of 141 id: jsti-416 author: Hakim, Muh. Supwatul; Pangestu, Haryoko; Riyanto title: Preparation and Application of Nickel Electroplating on Copper (Ni/EC) Electrode for Glucose Detection date: 2022-04-19 words: 2771 flesch: 53 summary: The results (Table 3) show recoveries of the sensorabout 90.2-105.26%, which indicates the electrode great potential to determine glucose concentration in human urine samples. 4. CONCLUSIONS In summary, Ni/EC electrode material has been prepared to investigated for glucose detection. Calibration curved was constructed and a linearresponse for glucose concentration at range 0-0.004 M with R2= 0.992, LOD and LOQ was determined 4.85x10−4 M, 1.6x10−3respectively. keywords: cyclic; electrode; figure; glucose; nickel; solution cache: jsti-416.pdf plain text: jsti-416.txt item: #69 of 141 id: jsti-417 author: Idris, Amani A ; Shamsul Rijal Muhammad, Sabri title: A Simulation Study on The Simulated Annealing Algorithm in Estimating The Parameters of Generalized Gamma Distribution date: 2022-01-27 words: 4521 flesch: 54 summary: Title Science and Technology Indonesia e-ISSN:2580-4391 p-ISSN:2580-4405 Vol. 7, No. 1, January 2022 Research Paper A Simulation Study on The Simulated Annealing Algorithm in Estimating The Parameters of Generalized Gamma Distribution Amani Idris A. Sayed1,2* and Sabri Shamsul Rijal Muhammad1 1School of Mathematical Sciences, University Sains Malaysia, Pulau Pinang, 11800, Malaysia 2Department of Mathematics, Jazan University, Jazan, 45142, Saudi Arabia *Corresponding Author e-mail: amani.sayed1983@yahoo.com Abstract ThisstudyproposedahybridcomputationalmodelbyincorporatingSimulatedAnnealingalgorithm(SA) inthemaximumlikelihood in estimation the parameters of Generalized Gamma Distribution (GGD). The purpose is to improve the searching capacity of max- imum likelihood estimator for Generalized Gamma Distribution (GGD). keywords: algorithm; annealing; distribution; function; gamma; gamma distribution; ggd; likelihood; parameters cache: jsti-417.pdf plain text: jsti-417.txt item: #70 of 141 id: jsti-419 author: Iskandar, Iskhaq; Sari, Qurnia Wulan; Wahyudi, Aan Johan; Afdal; Mardiansyah, Wijaya title: Vertical Chlorophyll-a Concentration Profiles Observed on The Western Coast of Northern Sumatera During the 2017 Northeast Monsoon date: 2022-01-27 words: 3523 flesch: 59 summary: Previous study has suggested that river runo� signi�cantly a�ect the content of nutrients (Phosphate, Nitrate and Silicate) in the ocean (Zhang et al., 2020). The water characteristic with deep chl-a maximum (DCM) and high surface chl-a (HSC) pro�le data was used to characterize the chl-a visual analysis (Lavigne et al., 2015). keywords: chl; concentration; e017; phytoplankton; pro; sumatera; surface; vertical cache: jsti-419.pdf plain text: jsti-419.txt item: #71 of 141 id: jsti-42 author: Mariadi, Pra Dian; Sebayang, Rosnita title: Removal lead (Pb) and mercury (Hg) from juaro fish (Pangasius polyuranodon) using citric acid from pineapple extract (Ananas comosus) as chelating agent date: 2017-10-03 words: 2678 flesch: 61 summary: The result indicated that after soaking and boiling in citric acid solution form pineapple extract at concentration 100 % for 45 min at 100 0C reducing heavy metals Pb from 0.02 mg.Kg-1 to 0.003 mg.Kg-1 and Hg from 0.011 mg.Kg-1 to lower than 0.0001 mg.Kg-1. Keywords: Citric Acid solution, Pineapple extract, heavy metal 1. keywords: acid; citric; extract; fish; juaro; lead; mercury; metals; min cache: jsti-42.pdf plain text: jsti-42.txt item: #72 of 141 id: jsti-440 author: Widjajanti, Hary; Nurnawati, Elisa; Muharni; Eca Desriana Zahwa title: Optimization of Antibacterial Production of Endophytic Fungi with Various Sources of C, N, and pH using The Response Surface Methodology date: 2022-04-19 words: 6212 flesch: 50 summary: The objectives of the research to obtain the optimum interaction between sources of carbon, nitrogen, and pH for the production of secondary metabolite extract using Response Surface Methodology (RSM). 3.4 Results of Cultivation Medium Optimization for McB1 Endophytic Fungi In McB1 endophytic fungi, three factors were used to a�ect the weight of secondary metabolite extract with sucrose as carbon source with a value ranging from 0.360 g/L to 0.680 g/L and yeast extract as nitrogen source with a value between 0.160 g/L to 0.830 g/L, while the pH ranges from 5.1 to 6.8. keywords: carbon; extract; fungi; mcb1; medium; metabolites; nitrogen; optimization; production; response; source; yeast cache: jsti-440.pdf plain text: jsti-440.txt item: #73 of 141 id: jsti-45 author: admin title: Front Matter date: 2017-08-21 words: 307 flesch: 21 summary: Front matter 2.2.cdr ogy Indonesia ence Sci Technol & p-ISSN: 2580-4405 e-ISSN: 2580-4391 SCIENCE & TECHNOLOGY INDONESIA A Peer Reviewed Research Journal of Science and Technology VOLUME 2 NUMBER 2 APRIL 2017 TABLE OF CONTENTS Adsorption of Congo Red Using Kaolinite-Cellulose Adsorbent DOI: https://doi.org/10.26554/sti.2017.2.2.29-36 Santa Oktavia Ginting, Risfidian Mohadi.........................................................................................29 Impregnation of Bentonite With Cellulose as Adsorbent of Congo Red DOI: https://doi.org/10.26554/sti.2017.2.2.37-44 Monica Theresa, Santa Oktavia Ginting ........................................................................................... Seruni RT 3 Bukit Besar, Palembang 30139-Indonesia Prof. Aldes Lesbani Integrated Research Laboratory Graduate School, Sriwijaya University Publication Schedule Science and Technology Indonesia Publish Quarterly (January, April, July, October) keywords: indonesia; science; technology cache: jsti-45.pdf plain text: jsti-45.txt item: #74 of 141 id: jsti-450 author: Bahtera Jaya Bangun, Putra; Octarina, Sisca; Aniza, Rizka; Hanum, Laila; Puspita, Fitri Maya; Supadi, Siti Suzlin title: Set Covering Model Using Greedy Heuristic Algorithm to Determine The Temporary Waste Disposal Sites in Palembang date: 2022-01-27 words: 5398 flesch: 68 summary: De�ning Variables and Parameters Variables De�nition a1 TWDS Ganda Subrata in front of Yuka Housing a2 TWDS Pusri Sukamaju Housing a3 TWDS Vila Kenten Complex a4 TWDS BSD Complex a5 TWDS Behind Satelit Murni Market a6 TWDS North Musi Raya Street a7 TWDS East Musi Raya Street a8 TWDS West Musi Raya Street a9 TWDS Griya Musi Sako Market b1 Sukamaju Village b2 Sako Village b3 Sialang Village b4 Sako Baru Village Table 3 states that d12 is the distance from TWDS Ganda Subrata in front of Yuka Housing (a1) to TWDS Pusri Suka- maju Housing (a2) is 1,800 meters, d13 is the distance from TWDS Ganda Subrata in front of Yuka Housing (a1) to TWDS Vila Kenten Complex (a3) is 1,700 meters and so on. Meanwhile, Sako Village has 2 TWDS, namely TWDS BSD Complex and TWDS Griya Musi Sako Market. keywords: algorithm; district; heuristic; location; model; problem; sako; twds cache: jsti-450.pdf plain text: jsti-450.txt item: #75 of 141 id: jsti-472 author: Irsalinda, Nursyiva; Surono, Sugiyarto; Ratna Sary, Indah Dwi title: Pattern Recognition using Multiclass Support Vector Machine Method with Local Binary Pattern as Feature Extraction date: 2022-07-28 words: 4137 flesch: 53 summary: Another research found a higher accuracy of performance for multiclass SVM method when compared with SVM method (Alita et al., 2020). Image Recognition Method using Local Binary Pattern and The Random Forest Classier to Count Post Larvae Shrimp. keywords: binary; classication; data; machine; method; pattern; recognition; support; svm; vector cache: jsti-472.pdf plain text: jsti-472.txt item: #76 of 141 id: jsti-478 author: Wicaksono, Yudi; Al Amaliyah, Shofiatul Izzah ; Rahmayanti, Finas ; Rosidi, Viddy Agustian ; Winarti, Lina ; Setyawan, Dwi title: Preparation and Evaluation of Antihypercholesterolemic Activity of Atorvastatin Calcium-Maleic Acid Co-Amorphous Solids date: 2022-04-19 words: 4494 flesch: 41 summary: Thisstudy aimed to increase the solubility of atorvastatin calcium through the formation of co-amorphous solids and evaluate its activityas antihypercholesterolemic. Atorvastatin calcium was prepared into co-amorphous solids with a maleic acid coformer using the spraydrying method. keywords: acid; animals; atorvastatin; atorvastatin calcium; calcium; cholesterol; levels; solids; solubility cache: jsti-478.pdf plain text: jsti-478.txt item: #77 of 141 id: jsti-479 author: Oramahi, Hasan Ashari ; Kustiati; Wardoyo, Elvi Rusmiyanto Pancaning title: Optimization of Liquid Smoke from Shorea pachyphylla using Response Surface Methodology and its Characterization date: 2022-04-19 words: 4305 flesch: 53 summary: The ongoing study and recent information on liquid smoke pro- posed noteworthy potential for production and application of liquid smoke in agriculture and forestry. An RSM was used in order to optimize liquid smoke yield from mabang wood. keywords: acid; et al; liquid; mabang; oil; oramahi; pyrolysis; smoke; temperature; time; wood; yield cache: jsti-479.pdf plain text: jsti-479.txt item: #78 of 141 id: jsti-48 author: Sihotang, Yosua Maranatha; Windiasfira, Eka; Barus, Hendro David Ginola; Herlina, Herlina; Novita, Rennie Puspa title: Hepatoprotective effect of ethanol extract of matoa leaves (Pometia pinnata) against paracetamol-induced liver disease in rats date: 2017-10-03 words: 2641 flesch: 62 summary: Plant materials The matoa leaves were collected from Indralaya, Ogan Ilir Dis- Sihotang et al. 2017 / Science & technology Indonesia 2 (4) 2017: 92-95 93 trict South Sumatra, Indonesia. Sihotang et al. 2017 / Science & technology Indonesia 2 (4) 2017: 92-95 95 and Feng, Y. (2015). keywords: eeml; extract; leaves; liver; paracetamol; rats cache: jsti-48.pdf plain text: jsti-48.txt item: #79 of 141 id: jsti-480 author: Russel, Edwin; Wamiliana; Saibi, Nairobi; Warsono; Usman, Mustofa; Daoud, Jamal I. title: Dynamic Modeling and Forecasting Data Energy Used and Carbon Dioxide (CO2) date: 2022-04-19 words: 6368 flesch: 64 summary: From the Granger Causality it was found that there is unidirection eect namely there is causal eect of Energy Used to CO2 emission. From Impulse Response Function analysis shows that if there is shock of one standard deviation of Energy Used, the impact on EnergyUsed itself is small, but the impact on CO2 emission is uctuated and relatively long periode of time to attain the stability condition. keywords: analysis; co2; cointegration; data; energy; enr; model; response; table; test; value; year cache: jsti-480.pdf plain text: jsti-480.txt item: #80 of 141 id: jsti-482 author: Hapida, Yustina ; Elfita, Elfita; Widjajanti, Hary ; Salni title: Tritirachium oryzae and Other Endophytic Mediated Jambu Bol (Syzygium malaccense) are Potential as an Antioxidant date: 2022-04-19 words: 5602 flesch: 47 summary: Antioxidant Activity of S. malaccense Endophytic Fungi was using The DPPH Method, with Ascorbic Acid as The Antioxidant Standard Sample Genus/species of identication Antioxidant activity IC50 (`g/mL) Endophytic fungi live in the internal tissues of all plant species without causing disease symptoms in their hosts (Nair and Padmavathy, 2014). keywords: activity; antioxidant; compound; endophytic; et al; fungi; fungus; journal; malaccense; tritirachium; yf12 cache: jsti-482.pdf plain text: jsti-482.txt item: #81 of 141 id: jsti-483 author: Siregar, Patimah Mega Syah Bahar Nur; Lesbani, Aldes; Mohadi, Risfidian title: Mg/Al-chitosan as a Selective Adsorbent in The Removal of Methylene Blue from Aqueous Solutions date: 2022-04-19 words: 5613 flesch: 59 summary: Methylene blue was continued for adsorption processes such as isotherm adsorptionkinetics and adsorption thermodynamics as well as adsorbent regeneration studies. Journal of Colloid and Interface Science, 446; 133–140 El-Mekkawi, D. M., F. A. Ibrahim, and M. M. Selim (2016). keywords: adsorbent; adsorption; blue; chitosan; dye; et al; figure; journal; ldh; methylene; process cache: jsti-483.pdf plain text: jsti-483.txt item: #82 of 141 id: jsti-489 author: Mardiyanto; Untari, Budi; Fithri Annuria, Najma; Mara, Ady; Aprianto, Andre Agung; Emilia Ningsih, Gustina title: The Enhancement Solubility and Stability of Erythromycin Formatted in Solid Lipid Nanoparticles by Utilizing PVA as Stabilizer date: 2022-04-19 words: 5037 flesch: 48 summary: SEM Image of SLN Loading Erythromycin 3.4 Evaluation of pH Determination of the pH of Solid Lipid Nanoparticles was performed by calculating the pH by utilizing a pH meter. 3.6 Solubility Test Solubility testing of Solid Lipid Nanoparticles carrying ery- thromycin was carried out on the selected formula which pur- pose to evaluate the enhancing solubility of the SLN loading erythromycin using several solutions for dosage-form man- ufacturing and the solution which locates in the part of the human body. keywords: drug; erythromycin; et al; lipid; loading; particles; sln; solubility; stability; test; water cache: jsti-489.pdf plain text: jsti-489.txt item: #83 of 141 id: jsti-493 author: C. López-Esmerio; C. Ruiz-Rojas; J. Angulo-Rocha; E. Lizárraga-Medina; Ramos-Brito, Francisco; E. Camarillo-García; R. Martinez-Martinez; M. Aguilar-Frutis; M. García-Hipólito title: Study of The Electrical, Optical and Morphological Properties in Submicron and Microstructured ZnO Thin Films Obtained by Spin Coating and Chemical Bath Deposition date: 2022-07-28 words: 8736 flesch: 51 summary: This large dierence was associated with the great con- tribution of heterogeneous microstrains in the widening of the diraction peaks (Zhang et al., 2020). These microstrains are due to dislocations in grain boundaries regions (Zhang et al., 2020). keywords: area; charge; emission; et al; figure; properties; samples; size; substrate; zno cache: jsti-493.pdf plain text: jsti-493.txt item: #84 of 141 id: jsti-494 author: Yuwono, Suripto Dwi; Nahrowi, Ridho; Setiawan, Andi; Juliasih, Ni Luh Gede Ratna; Sukmana, Irza; Simanjuntak, Wasinton; Hadi, Sutopo title: Synthesis of Cellulose–Polylactic Acid Microcapsule as a Delivery Agent of Rifampicin date: 2022-07-28 words: 3862 flesch: 50 summary: 2.2 Synthesis of Micro PLA The synthesis of micro PLA was conducted by dissolving 5 g of PLA in 50 mL of chloroform. 3. RESULTS AND DISCUSSION 3.1 Synthesis of Micro PLA and Cellulose–PLA Besides, during the synthesis of micro PLA, mechanical treat- ment was adopted. keywords: acid; cellulose; cm−1; dissolution; drug; figure; pla; synthesis cache: jsti-494.pdf plain text: jsti-494.txt item: #85 of 141 id: jsti-495 author: Hern, Andy Liew Pik; Janteng, Aini ; Omar, Rashidah title: Subclasses of Analytic Functions with Negative Coefficients Involving q-Derivative Operator date: 2022-07-28 words: 3372 flesch: 86 summary: [) − 1) ≤ 0, and by applying this inequality, we obtain ��𝛿Dq f (𝛿) − ( f (𝛿) − f (−𝛿))�� − 𝜗 ��[𝛿Dq f (𝛿) + ( f (𝛿) − f (−𝛿)) A function f ∈ M∗S,qV ([ , 𝜗) if and only if it satises ���� 𝛿Dq f (𝛿)f (𝛿) − f (−𝛿) − 1 ���� < 𝜗 ���� [𝛿Dq f (𝛿)f (𝛿) − f (−𝛿) + 1 ���� for 0 ≤ [ < 1, 0 < keywords: −1)𝜏 cache: jsti-495.pdf plain text: jsti-495.txt item: #86 of 141 id: jsti-496 author: Sitepu, Robinson; Puspita, Fitri Maya; Lestari, Ide ; Indrawati; Yuliza, Evi ; Octarina, Sisca title: Facility Location Problem of Dynamic Optimal Location of Hospital Emergency Department in Palembang date: 2022-04-19 words: 3498 flesch: 60 summary: Most models of SCP only deal with the ability to set optimal facility location if the only parameter known would be the distance between facilities and distance between facilities and population (Sitepu et al., 2019). Furthermore, for the number of hospitals in each Sub- District will be dened as (h̃i), for example, Alang-Alang Lebar Sub-District has 1 hospital (h̃1), Bukit Kecil Sub-District has 2 hospitals (h̃2), and so on until the Jakabaring Sub-District has 0 hospitals (h̃18) as stated in Table 1. Table 2 displays the distance between the request point and ED location with a distance unit of kilometers (km), it can be seen in the distance between Alang-Alang Lebar (x̃1) to RSK Ernaldi Bahar (ỹ1) is 1.7 km, and so on until Jakabaring (x̃18), (Myria Hospital) (ỹ23) is 15 km. keywords: district; emergency; facilities; hospital; ilir; location; method; palembang; public; sub; table cache: jsti-496.pdf plain text: jsti-496.txt item: #87 of 141 id: jsti-5 author: Hanifa, Yuliza; Palapa, Neza Rahayu title: Mg/Al double layer hydroxides: intercalation with H3[α-PW12O40]•nH2O date: 2017-06-21 words: 2830 flesch: 52 summary: Intercalation of LDH-POM Intercalation process of double layer hydroxides by polyoxometalate H3[α-PW12O40]·nH2O by ion exchange method was carried out by preparing 1 g of H3[α-PW12O40]·nH2O (solution A) mixed with 50 mL of distilled water, and 2 g of double layer hydroxide was added with 25 mL NaOH 1 M (solution B). The double layer hydroxide material and the intercalated double layer hydroxide are presented in Figure 3. From the Figure3A, Double layer hydroxide diffraction was showing the highest peak at 27o-29o which is demonstrated double layer hydroxide material. keywords: double; figure; h3[α; hydroxide; intercalation; layer; material; polyoxometalate cache: jsti-5.pdf plain text: jsti-5.txt item: #88 of 141 id: jsti-522 author: Ansori, Muslim; Wamiliana; Fitriani; Antoni, Yudi; Putri, Desiana title: Enumerate the Number of Vertices Labeled Connected Graph of Order Seven Containing No Parallel Edges date: 2022-07-28 words: 4742 flesch: 72 summary: The Number of Vertices Labeled Connected Graph of Order Seven Containing No Parallel Edges The number of vertices labeled connected order seven graphs with no parallel edges m g 6 7 8 9 10 11 6 6,727 − − − − − 7 47,089 30,160 − − − − 8 188,356 211,120 30,765 − − − 9 565,068 844,480 215,355 21,000 − − 10 1,412,670 2,533,440 861,420 147,000 28,364 − 11 3,107,874 6,333,600 2,584,260 588,000 198,548 26,880 12 6,215,748 13,933,920 6,460,650 1,764,000 794,192 188,160 13 11,543,532 27,867,840 14,213,430 4,410,000 2,382,576 752,640 14 20,201,181 51,754,560 28,426,860 9,702,000 5,956,440 2,257,920 15 33,668,635 90,570,480 52,792,740 19,404,000 13,104,168 5,644,800 16 − 150,950,800 92,387,295 36,036,000 26,208,336 12,418,560 17 − − 153,978,825 63,063,000 48,672,624 24,837,120 18 − − − 105,105,000 85,177,092 46,126,080 19 − − − − 141,961,820 80,720,640 20 − − − − − 134,534,400 The number of vertices labeled connected order seven graphs with no parallel edges m g 12 13 14 15 16 12 26,460 − − − − 13 185,220 20,790 − − − 14 740,880 145,530 10,290 − − 15 2,222,640 582,120 72,030 8,022 − 16 5,556,600 1,746,360 288,120 56,154 2,940 17 12,224,520 4,365,900 864,360 224,616 20,580 18 24,449,040 9,604,980 2,160,900 673,848 82,320 19 45,405,360 19,209,960 4,753,980 1,684,620 246,960 20 79,459,380 35,675,640 9,507,960 3,706,164 617,400 21 132,432,300 62,432,370 17,657,640 7,412,328 1,358,280 22 − 104,053,950 30,900,870 13,765,752 2,716,560 23 − − 51,501,450 24,090,066 5,045,040 24 − − − 40,150,110 8,828,820 25 − − − − 14,714,700 The number of vertices labeled connected order seven graphs with no parallel edges m g 12 13 14 15 16 17 4,417 − − − − 18 30,919 2,835 − − − 19 123,676 19,845 210 − − 20 371,028 79,380 1,470 21 − 21 927,570 238,140 5,880 147 1 22 2,040,654 595,350 17,640 588 7 23 4,081,308 1,309,770 44,100 1,764 28 24 7,579,572 2,619,540 97,020 4,410 84 25 13,264,251 4,864,860 194,040 97,02 210 26 22,107,085 8,513,505 360,360 19,404 462 27 − 14,189,175 630,630 36,036 924 28 − − 1,051,050 63,063 1,716 29 − − − 105,105 3,003 30 − − − − 5,005 © 2022 keywords: edges; graph; number; order; vertices cache: jsti-522.pdf plain text: jsti-522.txt item: #89 of 141 id: jsti-53 author: Lesbani, Aldes title: Subject Index date: 2017-10-03 words: 63 flesch: 24 summary: No.4 October 2017 B Bamboo Biomonitoring C Capryol-90 Citric Acid Solution Congo Red D Distribution E Edible Film Environmental Conditions F Furosemide H Heavy Metal Hepatoprotection M Maps Matoa Leaves (Pometia pinnata) Microalgae Modification Starch Mura O Odonata P Paracetamol PEG-400 Pineapple Extract Polysorbate-80 Procion Red Propylene Oxide S Silymarin SNEDDS Spirulina sp U Uwi Starch (Dioscorea alata l) Subject Index Vol. 2 keywords: starch cache: jsti-53.pdf plain text: jsti-53.txt item: #90 of 141 id: jsti-530 author: Octarina, Sisca; Puspita, Fitri Maya; Supadi, Siti Suzlin; Eliza, Nur Attina title: Greedy Reduction Algorithm as the Heuristic Approach in Determining the Temporary Waste Disposal Sites in Sukarami Sub-District, Palembang, Indonesia date: 2022-10-31 words: 7580 flesch: 67 summary: TWDS Based on Village Location Points No Village Names TWDS Names 1 Talang Jambe TWDS Talang Jambe next to Public Ceme- tery 2 Kebun Bunga • TWDS Letjen Harun Sohar in front of Honda Dealer • TWDS Letjen Harun Sohar in front of Hajj Dormitory • TWDS Letjen Harun Sohar in front of Al-Hikmah Mosque • TWDS Letjen Harun Sohar in front of Talang Kedondong • TWDS Letjen Harun Sohar in front of Auto 2000 TAA • TWDS Bambu Kuning Arah Rumah Sakit Pelabuhan 3 Sukarami • TWDS Batujajar • TWDS Naskah • TWDS Kolonel H Burlian behind Mitra Bangunan Bus Stop • TWDS Kolonel H Burlian beside Lorong Dharma Agung • TWDS Kolonel H Burlian Simpang SMP 40 Palembang • TWDS Kolonel H Burlian beside Hotel DE Premium • TWDS Kolonel H Burlian in front of Bank BRI • TWDS Kolonel H Burlian beside Indo- maret Bus Stop 4 Suka Bangun - 5 Suka Jaya - 6 Sukodadi - 7 Talang Betutu - x1 ≥ 1 (11) The Denition of Variabless Variable The Denition of Variables x1 TWDS Kolonel H Burlian beside Hotel DE Premium x2 TWDS Naskah x3 TWDS Batujajar x4 TWDS Kolonel H Burlian beside Lorong Dharma Agung x5 TWDS Kolonel H Burlian Simpang SMPN 40 Palembang x6 TWDS Kolonel H Burlian behind Mitra Bangunan Bus Stop x7 TWDS Kolonel H Burlian beside Indomaret Bus Stop x8 TWDS Kolonel H Burlian in front of Bank BRI x9 TWDS Letjen Harun Sohar in front of Hajj Dormitory x10 TWDS Letjen Harun Sohar in front of Al-Hikmah Mosque x11 TWDS Letjen Harun Sohar in front of Talang Kedondong x12 TWDS Letjen Harun Sohar in front of Honda Dealer x13 TWDS Letjen Harun Sohar Auto 2000 TAA x14 TWDS Bambu Kuning Arah Rumah Sakit Pelabuhan x15 TWDS Talang Jambe next to Public Cemetery y1 Talang Jambe Village y2 Kebun Bunga Village y3 Sukarami Village y4 Suka Bangun Village y5 Suka Jaya Village y6 Sukodadi Village y7 Talang Betutu Village Table 4 states the optimal solution of the model using LINGO 18.0 software. keywords: burlian; column; kolonel; location; model; problem; table; twds; twds kolonel; value cache: jsti-530.pdf plain text: jsti-530.txt item: #91 of 141 id: jsti-538 author: Ahmad, Nur; Wijaya, Alfan ; Amri; Fitri, Erni Salasia ; Arsyad, Fitri Suryani ; Mohadi, Risfidian ; Lesbani, Aldes title: Catalytic Oxidative Desulfurization of Dibenzothiophene by Composites Based Ni/Al-Oxide date: 2022-07-28 words: 4607 flesch: 54 summary: The peaks at 832, 731, and 682 cm−1 can be assigned metal oxide in Ni/Al-LDH, TiO2, and ZnO (Intachai et al., 2021). EDS of Catalysts Element Ni/Al-LDH (%wt) Ni/Al-TiO2 (%wt) Ni/Al-ZnO (%wt) Ni keywords: catalyst; dbt; desulfurization; dibenzothiophene; et al; figure; ldh; tio2; zno cache: jsti-538.pdf plain text: jsti-538.txt item: #92 of 141 id: jsti-55 author: Ami, Elyani; Dahlan, Zulkifli; Hanum, Laila title: Bamboo distribution in Musi Rawas District South Sumatera Province date: 2017-10-20 words: 2974 flesch: 61 summary: Indonesia estimated has 157 type of bamboo species and it is 10% of the world bamboo species. In the construction field, since ancient times, some types of bamboo species such as Gigantochloa pseudoarundinacea dan Gigantoc- hloa robusta have been applied as construction material and build- ing accessories (Sulastiningsih dan Santoso, 2012). keywords: bamboo; bambusa; dan; distribution; district; forest; gigantochloa; indonesia; musi; rawas; south; species; vulgaris cache: jsti-55.pdf plain text: jsti-55.txt item: #93 of 141 id: jsti-562 author: Yuliasari, Nova; Amri; Mohadi, Risfidian; Elfita, Elfita; Lesbani, Aldes title: Improvement of Congo Red Photodegradation Performance Through Zn/Al-TiO2 and Zn/Al-ZnO Preparation date: 2022-10-31 words: 3950 flesch: 53 summary: PhotocatalyticDegradation of Phenol by Semiconducting Mixed Oxides Derived from Zn (Ga) Al Layered Double Hydroxides. Studies have been carried out using the coprecipitation method using urea as a precipitate in the preparation of Zn/Al LDH-based materials, these studies were as follows: ZnMn/Al (Morales-Mendoza et al., 2015), ZnNi/Al (Wang et al., 2014a) and Zn/Al-TiO2 (Wang et al., 2014b) which were used in the degradation of chlorophenol,orangeGandmethyleneblue, respectively,while Zn/AlCe (Suárez-Quezada et al., 2016) and Zn/AlLa (Tzom- pantzi et al., 2014) were used for phenol degradation. keywords: al ldh; catalyst; et al; ldh; photodegradation; science; tio2; zno cache: jsti-562.pdf plain text: jsti-562.txt item: #94 of 141 id: jsti-565 author: Gamayel, Adhes; Zaenudin, Mohamad ; Mohammed, M. N. ; Yusuf, Eddy title: Investigation of the Physical Properties and Droplet Combustion Analysis of Biofuel from Mixed Vegetable Oil and Clove Oil date: 2022-10-31 words: 5421 flesch: 58 summary: CJO,KSO,CCO,namely0.921 gr/mL, 0.917 gr/mL, 0.913 gr/mL, then add clove oils be- come slightly high at 0.93 gr/mL, 0.926 gr/mL, 0.923 gr/mL. It’s due to the cumulative large molecular weight and the bulk structure of vegetable oil with the dense and rigid molecules of clove oil. Thisresearch aims to evaluate the droplet combustion characteristics that correlated with the density, viscosity, and the flash point of thebiofuel from mixed vegetable oil with clove oil. keywords: acid; ame; cco; cjo; clove; combustion; droplet; fuel; ignition; kso; oil; vegetable; viscosity cache: jsti-565.pdf plain text: jsti-565.txt item: #95 of 141 id: jsti-57 author: Herlina, Herlina; Amriani, Annisa; Solihah, Indah; Sintya, Rizky title: Antidiabetic Activity Test of Ethanolic Seri Leave’s (Muntingia Calabura L.) Extract in Male Rats Induced by Alloxan date: 2018-01-21 words: 5767 flesch: 58 summary: The positive control group has a percentage decrease in blood glucose levels were highest, followed by treatment group III, II treatment, and treatment I. Data reduction in blood glucose level seach group has been obtained, then statistically analyzed using SPSS 23.0. Rats blood glucose level after induced intraperitoneally by alloxan130 keywords: alloxan; blood; blood glucose; control; dose; ethanol; extract; glucose; glucose levels; group; leaves; levels; rats; seri; test; treatment cache: jsti-57.pdf plain text: jsti-57.txt item: #96 of 141 id: jsti-572 author: Zebua, Nilsya Febrika; Alexandro, Tandra; Virda Widya Pratiwi; Syarifah Nadia; Supran Hidayat; Fujiko, Muflihah; Muharni Saputri; Bakri, Tedy Kurniawan; Nerdy title: Tablet Formulation with Galactomannan Binding Agent and Acute Toxicity Test from Terminalia catappa L. date: 2023-01-19 words: 4857 flesch: 52 summary: Based on the description above, this research intends to formulate a binder derived from galactomannan, which is for- mulated with variations because, in general, herbal extracts tend to be hygroscopic, affecting tablet flow properties and can affect the compatibility of tablet preparations. Ketapang leaf extract tablets met the re- quirements, variations in the concentration of binders and dis- integrants significantly affect the physical properties of tablets, especially on the hardness and disintegration time; the higher the concentration of binders used, the more complex the tablets and the longer the disintegration time. keywords: figure; indonesia; ketapang; liver; mice; tablet; test; time; toxicity cache: jsti-572.pdf plain text: jsti-572.txt item: #97 of 141 id: jsti-578 author: Marhamah; Surono, Sugiyarto; Darmawan, Endang title: The Risk Cluster in Type 2 Diabetes Mellitus Based on Risk Parameters Using Fuzzy C-Means Algorithm date: 2023-01-19 words: 5443 flesch: 59 summary: Fuzzy C-Means clustering have been used to predict the level of diabetes mellitus, so that it can assist medical per- https://crossmark.crossref.org/dialog/?doi=10.26554/sti.2023.8.1.17-24&domain=pdf https://doi.org/10.26554/sti.2023.8.1.17-24 Marhamah et. Therefore, aged people were at high risk of developing diabetes mellitus (Association, 2021). keywords: cluster; diabetes; diabetes mellitus; fuzzy; history; means; mellitus; parameters; risk; study; subjects; type cache: jsti-578.pdf plain text: jsti-578.txt item: #98 of 141 id: jsti-583 author: Sari, Reni Permata ; Wamiliana; Junaidi, Akmal ; Susanty, Wiwin title: The Diameter and Maximum Link of the Minimum Routing Cost Spanning Tree Problem date: 2022-10-31 words: 3835 flesch: 60 summary: Parallel Approxima- tion Algorithms for Minimum Routing Cost Spanning Tree. An Experimental Study of Minimum Routing Cost Spanning Tree Algorithms. keywords: cost; diameter; graph; minimum; problem; spanning; tree; value cache: jsti-583.pdf plain text: jsti-583.txt item: #99 of 141 id: jsti-59 author: Novita, Rennie Puspa; Akbari, Atika; Dharma, Nikita Surya; Sukma, Endang Putria title: Correlation Among Education, Knowledge, And Economics Of Mother Toward Antipyretic Drug Usage For Toddler In Kangkung Village OKUT Sumsel 2017 date: 2018-04-16 words: 3196 flesch: 52 summary: Conclusions There is no signi�cant correlation between maternal education and maternal economics with rational antipyretic drug. 3.3.3 Correlation Mother’s Economy with Antipyretic Drug Rationally The result of Chi-square test of correlation mother’s economy to rational antipyretic drug usage showed that there are 2 cells or there are 50% cells that have a frequency of less than 5 and a minimum expectation frequency of 0.96. keywords: antipyretic; drug; education; knowledge; level; use; village cache: jsti-59.pdf plain text: jsti-59.txt item: #100 of 141 id: jsti-590 author: Wijaya, Alfan; Taher, Tarmizi; Lesbani, Aldes; Mohadi, Risfidian title: Variation of M2+ (Ni and Zn) in Cellulose-based M2+/Cr Composite Materials to Determine Adsorption and Regeneration Abilities on Phenol Removal date: 2022-10-31 words: 5128 flesch: 54 summary: The Capability of Biochar-based CaAl and MgAl Composite Materials as Adsorbent for Re- moval Cr (VI) in Aqueous Solution. Based on Figure 6, the equilibrium time of the adsorption process occurs at 70 minutes with an insignicant increase in adsorption concentration. keywords: adsorption; cellulose; ldh; materials; phenol; process cache: jsti-590.pdf plain text: jsti-590.txt item: #101 of 141 id: jsti-591 author: Badaruddin, Muhammad; Ahmad, Nur; Salasia Fitri, Erni; Lesbani, Aldes; Mohadi, Risfidian title: Hydrochar and Humic Acid as Template of ZnAl Layered Double Hydroxide for Adsorption of Phenol date: 2022-10-31 words: 4237 flesch: 53 summary: In this study, the synthesis of ZnAl-LDH using the copre- cipitation method and the preparation of ZnAl composites with hydrochar and humic acid were carried out. Layered double hydroxide NiAl, ZnAl, and MgAl compos- ited with carbon-based materials such as chitosan were eec- tively to remove congo red, and the ability of the composite to be used repeatedly was stable until the seventh cycle in the regeneration process (Siregar et al., 2021). keywords: acid; adsorption; et al; humic; hydrochar; ldh; phenol; solution; znal cache: jsti-591.pdf plain text: jsti-591.txt item: #102 of 141 id: jsti-592 author: Pauzi, Gurum Ahmad; Samosir, Ahmad Saudi ; Sulistiyanti, Sri Ratna ; Simanjuntak, Wasinton title: Electrochemical Performance of Galvanic Cell with Silver Coated Cathode in One Compartment System Using Seawater as Electrolyte date: 2023-01-19 words: 4055 flesch: 56 summary: Electrode The Cu(Ag) electrode was prepared by electroplating process using AgNO3 solution in an electrochemical cell with Cu metal as the cathode and a carbon rod as the anode. As can be seen in Table 1, the corrosion rate of Cu metal was much higher than that of silver-coated Cu. keywords: cell; circuit; corrosion; cu(ag)-zn; metal; resistance; seawater; system cache: jsti-592.pdf plain text: jsti-592.txt item: #103 of 141 id: jsti-593 author: Rosalina, Yessy ; Warsiki, Endang ; Fauzi, Anas Miftah ; Sailah, Illah title: Study of Anthocyanin Extraction from Red Banana (Musa sapientum L. var Rubra) Waste and Characteristics of Light Effects date: 2022-10-31 words: 5839 flesch: 55 summary: In comparison, the concentrated extract of red banana peel contains 110.27 `g/g FW of total anthocyanins. Total anthocyanins (mg/L) = (A × keywords: anthocyanin; banana; banana peel; bracts; colour; et al; extract; food; fruit; indonesia; light; peel; red; total cache: jsti-593.pdf plain text: jsti-593.txt item: #104 of 141 id: jsti-596 author: Riwu, Audrey Gracelia; Jusak Nugraha; Djoko Agus Purwanto; Erwin Astha Triyono title: Determination of (+)-Catechin and Antioxidant Activity in Faloak (Sterculia quadrifida R. Br) Stem Bark Infusion date: 2023-01-19 words: 4760 flesch: 53 summary: Based on the above background, the aim of this study is to determine and quantify (+)-catechin using HPLC, followed by antioxidant activity using DPPH methods in the infusion of S. quadrida stem bark. Approximately 10 mg of water extract of S. quadrida stem bark was mixed with 100 mg of KBr and packaged into sample pellets and then read by the FTIR spec- trophotometer (Perkin Elmer, 1302F6802). keywords: -catechin; activity; antioxidant; bark; et al; indonesia; infusion; journal; quadrida; stem cache: jsti-596.pdf plain text: jsti-596.txt item: #105 of 141 id: jsti-598 author: Priatna, Satria Jaya; Hakim, Yusuf Mathiinul; Wibyan, Sahrul ; Sailah, Siti; Mohadi, Risfidian title: Interlayer Modification of West Java Natural Bentonite as Hazardous Dye Rhodamine B Adsorption date: 2023-04-15 words: 5817 flesch: 51 summary: Based on Table 3, the kinetic data shows that the linear re- gression value (R2) of the pseudo-second-order (PSO) tends to be closer to 1 value than to the pseudo-first-order (PFO) kinetic model, so it concluded that RhB adsorption in bentonite-based adsorbent follows the PSO model kinetics. Based on Table 4, the Freundlich isotherm model shows a linear regression value (R2) closer to the value 1 than the Langmuir isotherm model for RhB adsorption, indicating Figure 6. keywords: adsorbent; adsorption; bentonite; capacity; effect; et al; figure; rhb; science; sodium; temperature cache: jsti-598.pdf plain text: jsti-598.txt item: #106 of 141 id: jsti-599 author: Nazarudin; Ulyarti; Pratama, Indra Agung ; Yuwono, Suripto Dwi title: Improving the Characteristics of Edible Film Using Modified Cassava Starch Over Ethanol Precipitation date: 2023-01-19 words: 4479 flesch: 56 summary: Although statistically insignicant, the increase in modied starch concentration tends to decrease WVTR of the lm. Some studies stated that the addition of modied starch with a dierent morphological shape or size can overcome these problems (Ulyarti et al., 2022; Wolf et al., 2018; Roy et al., 2020; Farrag et al., 2018; Ulyarti et al., 2020). keywords: cassava; concentration; edible; et al; film; lms; starch; water; wvtr cache: jsti-599.pdf plain text: jsti-599.txt item: #107 of 141 id: jsti-6 author: Utami, Hasja Paluta; Siburian, Donny Marihot title: Organometallic [Fe3O(OOCC6H5)6(H2O)3](NO3) as intercalant of bentonite date: 2017-06-21 words: 3602 flesch: 53 summary: B) bentonite with heating at 400 oC C) bentonite with acidification In the result of bentonite intercalation of organometamic compound in Figure 3 (E) (1: 2) it is seen that the vibration of Fe-O organometallic compound appears at wavenumber 470.6 cm-1. Strecthing and bending vibrations of Al-O-Si are appeared at 532.3 cm-1 In the result of bentonite intercalation of organometallic compound Figure 3 (F) (1: 3) it is appeared that the emergence of strong absorption at wavenumber 470,6 cm-1 for vibration of Fe-O organometallic compound. keywords: bentonite; cm-1; compounds; figure; intercalation; percentage; vibration cache: jsti-6.pdf plain text: jsti-6.txt item: #108 of 141 id: jsti-606 author: Yuliza, Evi; Suprihatin, Bambang ; Bangun, Putra Bahtera Jaya ; Puspita, Fitri Maya ; Indrawati; Octarina, Sisca title: Waste Collection Vehicle Routing Problem with TimeWindows for Route Optimization of Garbage Transport Vehicles date: 2023-01-19 words: 3016 flesch: 64 summary: Waste collection vehicle routing problem with time windows on determining theroute of a garbage transport vehicle which is simulated on the problem of transporting garbage in the city of Palembang. This study aims to optimize the route of waste transportation vehicles in the problem of transportingwaste so as to minimize travel time and distance. keywords: collection; problem; routing; tds; time; vehicle; waste cache: jsti-606.pdf plain text: jsti-606.txt item: #109 of 141 id: jsti-609 author: Paluta Utami, Hasja; Ahmad, Nur; Zahara, Zaqiya Artha; Lesbani, Aldes; Mohadi, Risfidian title: Green Synthesis of Nickel Aluminum Layered Double Hydroxide using Chitosan as Template for Adsorption of Phenol date: 2022-10-31 words: 3916 flesch: 54 summary: The results of the NiAl LDH, chitosan, and chitosan@NiAl LDH adsorption isotherm data can be seen in Table 3. The maximum adsorption capacity of NiAl LDH,chitosan, and chitosan@NiAl LDH is 25.445, 23.753, and 33.223 mg/g, respectively. keywords: adsorption; chitosan; et al; journal; ldh; nial; phenol cache: jsti-609.pdf plain text: jsti-609.txt item: #110 of 141 id: jsti-614 author: Fatoni, Ahmad; Rendowati, Agnes ; Sirumapea, Lasmaryna ; Miranti, Lidya ; Masitoh, Siti ; Hidayati, Nurlisa title: Synthesis, Characterization of Chitosan-ZnO/CuO Nanoparticles Film, and its Effect as an Antibacterial Agent of Escherichia coli date: 2023-07-06 words: 5615 flesch: 58 summary: The filtrate and residue (ZnO nanoparticles) were separated, and ZnO nanoparticles were washed with aquadest (15 mL) and absolute ethanol (15 mL). The product of ZnO nanoparticles was dried in the oven (60°C) until dry. keywords: chitosan; cuo nanoparticles; et al; figure; film; metal; nanoparticles; nanoparticles film; oxide; synthesis; zno; zno nanoparticles cache: jsti-614.pdf plain text: jsti-614.txt item: #111 of 141 id: jsti-617 author: Oktiansyah, Rian; Widjajanti, Hary; Setiawan, Arum; Nasution, Sakinah Salman Ahmad ; Mardiyanto; Elfita, Elfita title: Antibacterial and Antioxidant Activity of Endophytic Fungi Extract Isolated from Leaves of Sungkai (Peronema canescens) date: 2023-04-15 words: 5179 flesch: 50 summary: Pure and Applied Biology (PAB), 8(2); 1287–1295 Khan, R. A. A., S. Najeeb, S. Hussain, B. Xie, and Y. Li (2020). The Placement of the 𝛿C at the 4-hydroxybenzoic Acid Isolated from Endophytic Fungi Trichoderma asperellum (1) and 4-hydroxybenzoic Acid from Reference (1*) HMQC, and HMBC, it can be described that compound 1 has a para-substituted benzene ring by a hydroxyl group and a carboxylic acid carbonyl. keywords: acid; activity; antibacterial; antioxidant; asperellum; compound; endophytic; et al; fungi; metabolites; trichoderma cache: jsti-617.pdf plain text: jsti-617.txt item: #112 of 141 id: jsti-619 author: Rossdy, Munirah ; Omar, Rashidah ; Soh, Shaharuddin Cik title: Bi-Univalent Function Classes Defined by Using an Einstein Function and a New Generalised Operator date: 2023-04-15 words: 6142 flesch: 76 summary: Disk automorphism: If f ∈ ∑ , Z ∈ 𝔻, and g(z) = f ( z+Z 1+Zz )− f (Z ) (1−|Z |2 ) A disk automorphism is used to derive the function f from a given function f ∈ N s,m,k _ ,𝛼 ( ∑ , E) and a fixed Z ∈ 𝔻 where F(z) = f ( z+Z 1+Zz ) keywords: functions cache: jsti-619.pdf plain text: jsti-619.txt item: #113 of 141 id: jsti-621 author: Purwaningsih, Yuliana; Masduqi, Ahmad Fuad; Indriyanti, Erwin; Syukur, Mighfar title: Photoprotective and Antioxidant Potential of Indonesia’s Klanceng Honey Beehive Waste date: 2023-01-19 words: 4349 flesch: 54 summary: Agritech, 38(3); 304–312 Revathi, S. S. C. M. R., M. and C. M. Rigley (2019). Using a Visible Spectrophotometry Antioxidant Activity Test Using DPPH (2,2- Diphenyl-1-Picrylhydrazyl) SPF Test Using UV Spectrophotometry RESULT AND DISCUSSION CONCLUSION ACKNOWLEDGMENT keywords: acetate; activity; antioxidant; ethanol; ethyl; extract; fraction; hexane; honey; sample; spf; total cache: jsti-621.pdf plain text: jsti-621.txt item: #114 of 141 id: jsti-624 author: Adeyemi, Adewunmi Olaniran ; Adeleke, Ismail Adedeji; Akarawak, Eno Emmanuella title: Extension of Exponential Pareto Distribution with the Order Statistics: Some Properties and Application to Lifetime Dataset date: 2023-04-15 words: 8234 flesch: 69 summary: WEP distribution has unimodal, decreasing, and increasingfailure rates; and it can be negatively or positively skewed and approximately symmetric with the potential for fitting platykurtic,mesokurtic, and leptokurtic lifetime data. Proposition 4: Let g(x) be the PDF and h(x) the hazard rate function of WEP distribution then, as x→0 we have g(0)=h(0). keywords: distribution; exponential; pareto; statistics; weibull; wep cache: jsti-624.pdf plain text: jsti-624.txt item: #115 of 141 id: jsti-635 author: Md Alimuddin, Nur Haliza; Noor Izzuddin, Qatrunnada; Amat, Muhammad Amirul; Zaharudin, Zati Aqmar title: A Multi-Period Model for Optimal Changi Airport Check-In Counter Operations date: 2023-01-19 words: 5291 flesch: 56 summary: Assuming that check- in counter service times are consistent and passenger arrivals increase over time, a queue will undoubtedly form. 2.2 A Multi-period Model for Airport Check-in Counters Allocation Problem Let the planning horizon, T be divided into a finite number N indexed by t(t = 1, 2, ..., N). keywords: airport; check; counters; model; number; passengers; service; shift; time cache: jsti-635.pdf plain text: jsti-635.txt item: #116 of 141 id: jsti-65 author: Hanum, Laila; Windusari, Yuanita; Setiawan, Arum; Muharni, Muharni; Adriansyah, Fikri; Mubarok, Amin Ali title: Comparison of CTAB Method and Wizard Genomic DNA Purification System Kit from Promega on DNA Isolation of Local Varities of Rice of South Sumatera date: 2018-01-21 words: 2514 flesch: 63 summary: The method used is DNA isolation method Wizard Genomic DNA Purification System Kit from promega and CTAB. Isolation of Rice DNA of local variety of South Sumatera using DNA method of Genomic DNA Purification System Kit from promega has higher quality and quantity compared to CTAB method. keywords: dna; kit; method; padi; promega; purification; purity; rice; system cache: jsti-65.pdf plain text: jsti-65.txt item: #117 of 141 id: jsti-650 author: Kasa, Renaldo Apriandi; Juswono, Unggul Pundjung; Santjojo, Dionysius J. D. H. title: The Effects of Reactive Oxygen and Nitrogen Species (RONS) Produced by Surface Dielectric Barrier Discharge (SDBD) Non-Thermal Plasma with Treatment Time and Distance Variations to Kill Escherichia coli date: 2023-01-19 words: 4359 flesch: 57 summary: The number of bacteria that grewafterbeing treated for120 seconds was an average of 4.3 x 107 CFU/mL. This number was much lower than the number of bacteria that grew without non-thermal plasma treatment, whichwas409x107 CFU/mL.While fortheshorter treatment time, the number of colonies that grew more and more was 105 s, 90 s, 75s, and 60 s, with the average number of colonies growing was 11 x 107 CFU/mL, 13 x 107 CFU/mL, 46.33 x 107 CFU/mL, 56 x 107 CFU/mL. Pictures of the number of colonies before (control) and after treatment with treatment time variations can be seen in Figure 4. The treatment of time variation and distance variation shows that there is an eect of non-thermal plasma treatment of SDBD. keywords: bacteria; distance; non; number; plasma; species; time; treatment; treatment distance; treatment time; variations cache: jsti-650.pdf plain text: jsti-650.txt item: #118 of 141 id: jsti-674 author: Yanuar, Ferra; Abrari, Tasya; Rahmi HG, Izzati; Zetra, Aidinil title: Spatial Autoregressive Quantile Regression with Application on Open Unemployment Data date: 2023-04-15 words: 5346 flesch: 66 summary: The Spatial Autoregressive Quantile Regression (SARQR)is a model that combines spatial autoregressive models with quantile regression. inIndonesia using modified spatial autoregressive model with the quantile regression approach. keywords: data; level; model; quantile; regression; sarqr; spatial; unemployment; value; variable; west cache: jsti-674.pdf plain text: jsti-674.txt item: #119 of 141 id: jsti-68 author: Putri, Darvi Mailisa; Maiyastri, Maiyastri; Devianto, Dodi title: The Definite Positive Property of Characteristic Function from Compound Geometric Distribution as The Sum of Gamma Distribution date: 2018-01-23 words: 3239 flesch: 56 summary: Article History: Received 1 December 2017; revised 11 January 2018; accepted 11 January 2018 http://doi.org/10.26554/sti.2018.3.1.49-52 The Definite Positive Property of Characteristic Function from Compound Geometric Distribution as The Sum of Gamma Distribution Darvi Mailisa Putri1, Maiyastri2, and Dodi Devianto3* 1,2,3Department of Mathematics, Faculty of Mathematics and Natural Sciences, Andalas Univerrsity, Padang 25163, West Sumatra Province, Indonesia *Corresponding Author E-mail: ddevianto@fmipa.unand.ac.id ABSTRACT In this expository article it is given characterization of compound geometric distribution as the sum of gamma distribution. The property of definite positive of characteristice function from compound geometric distribution as the sum of gamma distribution is exposed by analytical methods as the quadratic form of characteristic function. keywords: compound; distribution; function; gamma cache: jsti-68.pdf plain text: jsti-68.txt item: #120 of 141 id: jsti-685 author: Chidouh, Amina; Tahraoui, Tarek; Barhouchi, Badra title: Coprecipitation Synthesis and Antimicrobial Effect Study of Europium Doped Spinel Manganese Ferrites Nanoparticles (MnEu0.1Fe1.9O4NPs) date: 2023-07-06 words: 5022 flesch: 50 summary: Current Pharmaceutical Design, 24(8); 896– 903 Kalaiselvan, C. R., S. S. Laha, S. B. Somvanshi, T. A. Tabish, N. D. Thorat, and N. K. Sahu (2022). It is observed at about (20.24°, 33.25° and 40.90°) and (24.22°, 33.25°, 35.68°, 49.57° and 54.26°) the appearance of secondary phase peaks with an in- significant amount which corresponds to the ortho ferrite (Eu- FeO3) (01-074-1475) and hematite (Fe2O3) (01-089-0599) phases respectively (Zubair et al., 2017) . keywords: activity; antibacterial; et al; ferrite; journal; mneu0.1fe1.9o4nps; nanoparticles; nps; synthesis cache: jsti-685.pdf plain text: jsti-685.txt item: #121 of 141 id: jsti-687 author: Wicaksono, Yudi; Barikah, Kuni Zu’aimah ; Yudatama, Amanda Della ; Maulia, Havidhatul ; Nuri; Setyawan, Dwi title: Increasing the Solubility and Anti-Inflammatory Activity of Curcumin by Cocrystallization date: 2023-07-06 words: 6180 flesch: 56 summary: The PXRD diffractograms of CUR have shown sharp peaks at 7.75, 8.72, 15.72, 17.06, and 20.98◦, in- dicating similarity to the diffractogram of the CUR polymorph form 1, which has a monoclinic crystal structure (Sanphui et al., 2011) . al. Science and Technology Indonesia, 8 (2023) 501-508 INIC cocrystal solid showed melting at temperatures between the melting temperatures of CUR and INIC, indicating that CUR and INIC molecules formed intermolecular interactions in CUR-INIC solids with a different arrangement compared to CUR and INIC, resulting in a new crystalline solid phase (Satapathy et al., 2021) . keywords: cm−1; cocrystal; cur; curcumin; et al; group; inic; solid; solubility; water cache: jsti-687.pdf plain text: jsti-687.txt item: #122 of 141 id: jsti-690 author: Putri, El Fajriyah Aulia; Indahyanti, Ellya ; Mardiana, Diah; Lestari, Maria Lucia A.D; Ningsih, Zubaidah title: Okra Mucilage Extract as A Co-Surfactant Increased the Curcumin Nanoemulsion Stability and Encapsulation Efficiency date: 2023-07-06 words: 5163 flesch: 55 summary: Food Research International, 54(2); 1730–1737 Arjunan, K. M. R. A. M. S. M. K., A. (2021). In the first region, OME reduced particle size as well as increased the system uniformity. keywords: curcumin; curn; encapsulation; index; mucilage; nanoemulsion; okra; ome; particle; size; system cache: jsti-690.pdf plain text: jsti-690.txt item: #123 of 141 id: jsti-699 author: Manalu, Andriono; Manalu, Istas Pratomo ; Panjaitan, Muktar Bahruddin ; Simanullang, Ady Frenly ; Sitorus, Parlindungan title: Characterization of Synthesized NiCo2O4 with Trisodium Citrate for Supercapacitor Material: A Preliminary Study date: 2023-04-15 words: 4781 flesch: 50 summary: Nanoscale Advances, 1(8); 2817–2827 Nakhodchari, M. M., M. Seifi, and M. T. T. Moghadam (2023). REFERENCES Abdah, M. A. A. M., N. H. N. Azman, S. Kulandaivalu, and Y. Sulaiman (2020). keywords: energy; et al; materials; mmol; nanoparticles; nico2o4; raman; rgo; supercapacitor; tsc cache: jsti-699.pdf plain text: jsti-699.txt item: #124 of 141 id: jsti-7 author: Palapa, Neza Rahayu; Said, Muhammad title: Keggin type polyoxometalate H4[αSiW12O40].nH2O as intercalant for hydrotalcite date: 2017-06-21 words: 2343 flesch: 47 summary: Thermogram Hydrotalcite intercalated by polyoxometalate H4[αSiW12O40]•nH2O ratio (1:1). Published under the terms of the CC BY NC SA 4.0 license 27 condition shows that hydrotalcite intercalated by polyoxometalate H4[αSiW12O40].nH2O ratio 1:1 more better than others because this ratio has the better diffraction and the highest basal spacing which shown polyoxometalate H4[α- SiW12O40].nH2O has intercalated into hydrotalcite and caused increased the basal spacing. keywords: h4[α; h4[αsiw12o40]•nh2o; hydrotalcite; polyoxometalate; ratio; solution cache: jsti-7.pdf plain text: jsti-7.txt item: #125 of 141 id: jsti-70 author: Rupiah, Rupiah Rupiah; Hanum, Laila; Negara, Zaidan P; Dahlan, Zulkifli; Yustian, Indra title: Morphological Diversity of Lansium domesticum Corr in South Sumatra date: 2018-01-22 words: 2661 flesch: 55 summary: Duku fruit is yellow, spherical, The skin of duku is thicker than the peel of langsat, the skin thickness is between 0.08 and 0.2, the presence of sap on ripe fruit slightly gummy, the flesh of fruit is white and somewhat transparent, duku fruit has a sweet taste, but there are some duku fruit that has a sweet acidity. (f) (g) (h) (i) (j) (f) (g) (k) (l) (m) (n) (o) (p) Figure 1.Differences in morphological characters, (a) leaf morphology of langsaknipis(b) leaf morphology of langsakbulu(c) leaf morphology of langsat, (d) leaf morphology of langsak, (e) leaf morphology of duku, (f) canopy condition of langsaknipis, (g) canopy condition of langsakbulu, (h) canopy condition of langsat, (i) canopy condition of langsak, (j) canopy condition of duku, (k) fruit morphology of langsat, (l) fruit morphology of langsak, (m) fruit morphology of duku, (n) the flesh of fruit morphology and skin thickness of langsat, (o) the flesh of fruit morphology and skin thickness of langsak, (p) the flesh of fruit morphology and skin thickness of duku. keywords: domesticum; duku; fruit; langsat; leaf; leaves; morphology; south cache: jsti-70.pdf plain text: jsti-70.txt item: #126 of 141 id: jsti-704 author: Marpaung, Abdullah Muzi; Pustikarini, Dania title: Spectrophotometric Change of Butterfly Pea (Clitoria ternatea L.) Flower Extract in Various Metal Ion Solutions During Storage date: 2023-07-06 words: 4653 flesch: 51 summary: The absence of the shift caused by the addition of monovalent and divalent metal ions was also observed in various anthocyanin source extracts, such as blueberries (Wang et al., 2010) , red cabbage (Guo et al., 2017) , black peanuts (Shao et al., 2015) , Buniusantidesma (Mustika and Marpaung, 2020) , cyanidin-derived anthocyanin (Sigurdson et al., 2017; Sigurdson et al., 2016), Ribes nigrum (Buchweitz et al., 2013) , dark maize (Mei et al., 2014) , and fungus Pycno- porus sanguineus (Zhang et al., 2019) . The butterfly pea (Clitoria ternatea L.) flower extract is a rich source of anthocyanins that are well-known for their deep purple-blue color and their stability in low acidic solutions (Marpaung et al., 2017) . keywords: anthocyanin; butterfly; color; degradation; et al; extract; pea; stability cache: jsti-704.pdf plain text: jsti-704.txt item: #127 of 141 id: jsti-708 author: Nerdy, Nerdy; Margata, Linda; Zebua, Nilsya Febrika; Lestari, Puji; Bakri, Tedy Kurniawan; Yusuf, Faisal; Aulianshah, Vonna title: Development and Validation of Fast and Simple Fourier Transform Infrared Spectrophotometric Method for Analysis of Thiamphenicol in Capsule Dosage Form date: 2023-07-06 words: 6942 flesch: 46 summary: The AAPS Journal, 24(1); 34 Wadher, S. S. S. S. J. and B. B. Supekar (2019). Journal of Applied Pharmaceutical Science, 8(8); 151–156 Sonawane, S. S., S. S. Chhajed, S. S. Attar, and S. J. Kshirsagar (2019). keywords: analysis; area; capsule; cm−1; dosage; form; height; infrared; method; peak; peak area; peak height; solution; thiamphenicol; validation cache: jsti-708.pdf plain text: jsti-708.txt item: #128 of 141 id: jsti-709 author: Jasim, Ekhlas Qanber ; Muhammad-Ali, Munther Abduljaleel ; Almakki, Ayad title: Synthesis, Characterization, and Antibacterial Activity of Some Mesalazine Derivatives date: 2023-07-06 words: 4375 flesch: 57 summary: Thesynthesis of azo compounds involved the coupling of mesalazine with sulfamethoxazole or pyridoxine, resulting in the formation of5-amino-2-hydroxy-3-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)diazenyl)benzoic acid (3) or 2-hydroxy-5-((5-hydroxy-3,4-bis(hydroxymethyl)-6-methylpyridin-2-yl)diazenyl)benzoic acid (4), respectively. The antibacterial activity studies demonstrated that against Escherichia coli and Staphylococcus aureus, the Schiff basecompounds are more active than azo compounds. keywords: acid; activity; compounds; mesalazine; nil; synthesis cache: jsti-709.pdf plain text: jsti-709.txt item: #129 of 141 id: jsti-712 author: Wamiliana; Yuliana, Attiya; Fitriani title: The Relationship of Multiset, Stirling Number, Bell Number, and Catalan Number date: 2023-04-15 words: 3852 flesch: 72 summary: Moreover, the sum of the Stirling number and originally is Bell number, now is changed to be Catalan number. Catalan numbers wasdiscovered by Ming Antu in 1730, however, this numbers is credited to Eugene Catalan when he was studying parentheses in 1838.Catalan numbers mostly occurs in counting or enumeration problems. keywords: catalan; catalan numbers; multiset; numbers; stirling; ℤn+1 cache: jsti-712.pdf plain text: jsti-712.txt item: #130 of 141 id: jsti-72 author: Astari, Mirza Firdyah; Napoleon, Adipati; Mohadi, Risfidian title: Diversity of Cu and Total Cr Metals in Surface Water and Sludge of Textile Wastewater from Tuan Kentang Village Seberang Ulu I Sub District Palembang date: 2018-01-23 words: 2704 flesch: 59 summary: It means that the location on under the craftsman house and swamp are the deepest depth than other area and up- per from quality standard of South Sumatera Governor Regula- tion No 16 the year 2005 on Water Allocation and River Water Quality Standard that Cu concentration on surface water is 0,2 mg/L. According to Rusdiansyah (2006), household water channels have unsteady non uniform properties, meaning that this channel has a flow influenced by the speed and direction that changes to space and time where the aeration process depends on the rate of flow rate so that the concentration of substance which is the parameter of water quality at each point of uneven flow field and the quality is always changing depending on fluctuations in the flow rate that occurs. keywords: concentration; quality; sludge; standard; surface; total; water cache: jsti-72.pdf plain text: jsti-72.txt item: #131 of 141 id: jsti-73 author: Lusia, Maria; Gofar, Nuni; Widjajanti, Hary title: Bioremediation of Spent Bleaching Earth (SBE) Wastes using Lipolitic Bacteria (Bacillus cereus) with Variation of Inoculum Volume date: 2018-01-22 words: 5096 flesch: 60 summary: The result of Varian Analysis (ANAVA) showed that the volume of bacterial inoculum of Bacillus cereus had a significant effect on bacterial population, oil content and oil degradation. Further test results of DNMRT α5% on the variations of inoculum volume on bacterial population, oil content and oil degradation are presented in Table 3.1, 3.2 and 3.3. keywords: bacterial; degradation; growth; inoculum; kg-1; ml kg-1; oil; percentage; population; sbe; treatment; waste; week cache: jsti-73.pdf plain text: jsti-73.txt item: #132 of 141 id: jsti-734 author: Palapa, Neza Rahayu; Ahmad, Nur; Wijaya, Alfan; Zahara, Zaqiya Artha title: Facile Fabrication of Layered Double Hydroxide-Lignin for Efficient Adsorption of Malachite Green date: 2023-04-15 words: 4046 flesch: 59 summary: Chemical Engineering and Processing-Process Intensifica- tion, 167; 108318 Iqbal, A., E. Cevik, A. Bozkurt, S. M. M. Asiri, O. Alagha, T. F. Qahtan, M. I. Jalees, and M. U. Farooq (2022). Environmental Chemistry and Ecotoxicology, 2; 115–125 Nazir, M. A., T. Najam, S. Jabeen, M. A. Wattoo, M. S. Bashir, S. S. A. Shah, and A. ur Rehman (2022). keywords: adsorbents; adsorption; et al; green; lignin; removal; solution cache: jsti-734.pdf plain text: jsti-734.txt item: #133 of 141 id: jsti-747 author: Rodzi, Zahari Md ; Hazri, Ashiera Nadiha ; Azri, Nurul Ain Syahirah Mohd ; Rhmdan, Nurul Dania Farisha Sharul ; Zaharudin, Zati Aqmar ; Uttunggadewa, Saladin title: Uncovering Obstacles to Household Waste Recycling in Seremban, Malaysia through Decision-Making Trial and Evaluation Laboratory (DEMATEL) Analysis. date: 2023-07-06 words: 4928 flesch: 47 summary: Summary of Recycling Activities in Seremban Year Recycling Bank Recycling Bank Recycling Bank Recycling Bank in Recycling Bank Recycling Bank in School in Kindergarden in Community Government Office in University Industry KG RM KG RM KG RM KG RM KG RM KG RM 2017 45,608 9,488 8,803 2,213 2,522 576 41,127 12,899 6,262 1,249 224,767 17,647 2018 45,226 9,389 4,092 898 5,547 845 11,069 1,391 2,458 34 3,345 14 2019 74,048 16,154 4,042 1,015 7,001 1,306 5,385 1,455 1,171 144 2,417 5,123 2020 96,018 20,181 2,590 551 6,227 1,066 26,677 4,974 1,018 185 14,596 860 2021 52,279 12,974 1,242 320 38,001 13,307 39,851 3,620 2,229 437 4,272 568 Total 313,180 68,185 20,768 4,998 59,297 17,100 124,109 24,339 13,137 2,049 249,398 24,212 Table 3. Pro- moting Digital Transformation in Waste Collection Service and Waste Recycling in Moscow (Russia): keywords: barriers; et al; household; malaysia; management; recycling; seremban; study; waste; waste management; waste recycling cache: jsti-747.pdf plain text: jsti-747.txt item: #134 of 141 id: jsti-758 author: Aulia, Soraya; Primaharinastiti, Riesta ; Purwanto, Djoko Agus title: Development and Validation GC/MS Method for Methamphetamine Analysis in Urine by Miniaturization QuEChERS date: 2023-07-06 words: 6516 flesch: 54 summary: Stability Test Results, %CV and % Reduction in Methamphetamine Concentration During Storage Time of 0, 2, 4 and 8 Hours (n=3) Time (hour) Mean Concentration (µg/mL) SD %CV % Reduction 0 4.38 0.056 1.27 - 2 4.30 0.010 0.24 1.95 4 4.24 0.041 0.97 3.35 8 4.05 0.240 5.90 7.80 dition, specificity can also assess the relative retention time of methamphetamine to IS in standard solution compared to a retention time relative to methamphetamine in a urine sample; both retention times are the same, namely 0.71. al. Science and Technology Indonesia, 8 (2023) 451-460 Before carrying out an analysis of the concentration of methamphetamine in urine samples using sophisticated in- spection techniques such as gas chromatography, the process of purifying methamphetamine from urine samples is a pro- cess that must be followed. keywords: area; concentration; extraction; methamphetamine; method; quechers; results; sample; test; urine cache: jsti-758.pdf plain text: jsti-758.txt item: #135 of 141 id: jsti-77 author: Oktaviani, Siti Indah; Hanum, Laila; Negara, Zaidan P title: Analysis of Vegetation in Green Open Space of Gasing Industrial Area date: 2018-04-16 words: 4378 flesch: 57 summary: Such the way of breeding is thought to contribute to the ability of plant species to spread. High species diversity is an indicator of the growth environments stability. keywords: area; density; diversity; index; location; number; plant; relative; species; value cache: jsti-77.pdf plain text: jsti-77.txt item: #136 of 141 id: jsti-8 author: Tambunan, Osin Restinawaty; Mohadi, Risfidian title: Preparation of polyoxometalate compound (NH4)6(β-P2W18O62)/SiO2 by sol-gel method and its characterization date: 2017-06-21 words: 4842 flesch: 51 summary: Palembang Prabumulih, Km. 32, Indralaya, Ogan Ilir, Sumatera Selatan *Corresponding Author E-mail : osintambunan@yahoo.com ABSTRACT Preparation of polyoxometalate compound of (NH4)6(β-P2W18O62)nH2O supported with silica derived from the hydrolysis of tetraethyl orthosilicate by sol-gel method has been conducted. Research on polyoxometalate compounds is primarily intended in terms of its superiority as a catalyst which can be performed in homogeneous and heterogeneous system depending on the medium used. keywords: cm-1; compound; figure; nh4)6(β; nh4)6(βp2w18o62).nh2o; p2w18o62).nh2o; polyoxometalate; sio2; vibration cache: jsti-8.pdf plain text: jsti-8.txt item: #137 of 141 id: jsti-83 author: STI, Admin title: Author Index date: 2018-02-06 words: 83 flesch: -13 summary: Author Index Vol. 3 No.1 January 2018 A Adipati Napoleon Amin Ali Mubarok Annisa Amriani Aris Perdana Kusuma Arum Setiawan D Darvi Mailisa Putri Dodi Devianto F Fikri Ardiansyah H Hary Widjajanti Herlina I Indah Solihah Indra Yustian L Laila Hanum M Maiyastri Mardiyanto Maria Lusia Mirza Firdyah Astari Muharni Muhammad Faizal Muhammad Fajar Muhammad Said N Novia Nuni Gofar Nurul Kholidah O Oktia Charmila R Risfidian Mohadi Rizky Sintya Rupiah S Soilia Fertilita Y Yuanita Windusari Z Zaidan P Negara Zulkifli Dahlan keywords: author; muhammad cache: jsti-83.pdf plain text: jsti-83.txt item: #138 of 141 id: jsti-84 author: STI, Admin title: Subject Index date: 2018-02-06 words: 89 flesch: -43 summary: Subject Index Vol. 3 No.1 January 2018 A Alloxan Al2O5 catalyst Antidiabetic B Bacillus cereus Biogas Bioremediation C Catalytic cracking process Characteristic function Compound geometric distribution Co-processed excipient Cow manure Custom design CTAB D Definite positive Degradation E Ethanol extract Extract G Gamma distribution H Heavy metal K Kleinhovia hospital L L Lansium domesticum Local rice varieties of South Sumatera M Methane Morphology diversity P Plastic waste Polystyrene POME Promega S Seri leaves Simplex lattice design South Sumatera Spent Bleaching Earth (SBE) Standarization T Textile W Waste water keywords: extract cache: jsti-84.pdf plain text: jsti-84.txt item: #139 of 141 id: jsti-87 author: Theresiana, Yunita; Kamaluddin, Kamaluddin; Sriati, Sriati; Erina, Lili title: Factors of Medicinal Plants Users as Alternative Medicinal in Indonesia date: 2018-04-16 words: 3917 flesch: 54 summary: This research was aimed to figure out the society’s behaviors in using traditional medicines and the dominant factors that influence them in using traditional medicines. This research is an analytical survey with cross sectional approach which aims to (a) analyze the behavior of society of traditional drug utilization based on perception of sickness, type of complaint, residence, distance to health facility, health, family support, and promotion of traditional medicine. keywords: family; health; medicines; people; percent; research; respondents cache: jsti-87.pdf plain text: jsti-87.txt item: #140 of 141 id: jsti-9 author: Vitanesa, Lora; Purba, Radja Nardo; Lesbani, Aldes; Said, Muhammad title: Bentonite intercalated organometallic complex as adsorbent of procion red date: 2017-06-21 words: 6022 flesch: 55 summary: [Cr3O(OOCH)6(H2O)3(NO3) ] studied using kinetic parameters, thermodynamics, and pH. Adsorption of dyestuff procion red with activated bentonite has an absorption rate of 0.0048 min-1 while on inserted bentonite has the rate of 0.004 min-1. The bonds formed between the adsorbate and the adsorbent is studied through spectroscopy and diffraction compared with adsorbent before the interaction of inserted bentonite Organometallic compounds keywords: adsorbent; adsorption; analysis; bentonite; compound; figure; insertion; number; process; procion; red; shows; wave cache: jsti-9.pdf plain text: jsti-9.txt item: #141 of 141 id: jsti-96 author: Silvianti, Fitrilia; Wijayanti, Wijayanti; Sudjarwo, Wisnu A.A.; Dewi, Wikan Berliana title: Synthesis of Alkyd Resin Modified with Waste Palm Cooking Oil as Precursor Using Pretreatment with Zeolite Adsorbent date: 2018-07-27 words: 3134 flesch: 58 summary: Shaker et al. (2012) also did the research on jojoba oil-modi�ed alkyd resins according to the standard parameters of alkyd resin. Letjend Sutoyo Mojosongo, Surakarta, Indonesia *Corresponding author: fitrilia.s@atk.ac.id Abstract Research on synthesis of alkyd resin (AR) modified with waste palm cooking oil (WPCO) as precursor using alcoholys-polyesterification method was successfully conducted. keywords: adsorption; alkyd; alkyd resin; cooking; oil; resin; synthesis; wpco cache: jsti-96.pdf plain text: jsti-96.txt