— Genotypic identification of bacteria is faster than phenotypic identification. This study aims to determine the group of lactic acid bacteria species from Tilatang Kamang Agam curd using the 16S rRNA gene. Bacterial chromosomal DNA was isolated using the kit wizard genomic DNA purification method. The 16S rRNA gene in chromosomal DNA was isolated by PCR method using BacF1 and UniB1 primers. The 16S rRNA gene fragment sequencing was carried out using the Dideoxy Sanger method. The sequenced nucleotide base sequences were analyzed using the BioEdit, BLASTn and MEGA X programs. The size of the 16S rRNA gene fragment of the bacterial isolate UBC-DTK-01 obtained was 1017 bp (base pair). The bacterial isolates belonged to the Enterococcus genus and Enterococcus faecalis species strain UBC-DTK-01.
{"title":"Identifikasi Gen 16S rRNA Bakteri Asam Laktat UBC-DTK-01 dari Dadih","authors":"Azizah Azizah, Minda Azhar","doi":"10.24036/p.v11i2.113724","DOIUrl":"https://doi.org/10.24036/p.v11i2.113724","url":null,"abstract":"— Genotypic identification of bacteria is faster than phenotypic identification. This study aims to determine the group of lactic acid bacteria species from Tilatang Kamang Agam curd using the 16S rRNA gene. Bacterial chromosomal DNA was isolated using the kit wizard genomic DNA purification method. The 16S rRNA gene in chromosomal DNA was isolated by PCR method using BacF1 and UniB1 primers. The 16S rRNA gene fragment sequencing was carried out using the Dideoxy Sanger method. The sequenced nucleotide base sequences were analyzed using the BioEdit, BLASTn and MEGA X programs. The size of the 16S rRNA gene fragment of the bacterial isolate UBC-DTK-01 obtained was 1017 bp (base pair). The bacterial isolates belonged to the Enterococcus genus and Enterococcus faecalis species strain UBC-DTK-01.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124155661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rhodamine, B colorant is one of the dyes present in the waste coming from the textile/dyeing industry. Rhodamin B dyes found in waters can cause damage to ecosystems both animals and plants, so a method is needed to overcome the impact of pollution by Rhodamin B waste. One of the most efficient methods is the adsorption method using activated carbon from Durian peels. Adsorption,process is done by using a variation,of pH (2, 3, 4, 5 and 6), and variation of stirring speed (50, 100, 150, 200, 250 rpm). The results showed the absorption capacity at optimum conditions for the absorption of Rhodamine B at pH 4 and stirring speed at 200 rpm with absorption capacity of 24,643 mg/g with absorption percentage 96,0292%.
{"title":"Adsorpsi Zat Warna Rhodamine B Dengan Karbon Aktif Kulit Durian sebagai Adsorben","authors":"Azhma Ulya, Edi Nasra, A. Amran, D. Kurniawati","doi":"10.24036/p.v11i2.113371","DOIUrl":"https://doi.org/10.24036/p.v11i2.113371","url":null,"abstract":"Rhodamine, B colorant is one of the dyes present in the waste coming from the textile/dyeing industry. Rhodamin B dyes found in waters can cause damage to ecosystems both animals and plants, so a method is needed to overcome the impact of pollution by Rhodamin B waste. One of the most efficient methods is the adsorption method using activated carbon from Durian peels. Adsorption,process is done by using a variation,of pH (2, 3, 4, 5 and 6), and variation of stirring speed (50, 100, 150, 200, 250 rpm). The results showed the absorption capacity at optimum conditions for the absorption of Rhodamine B at pH 4 and stirring speed at 200 rpm with absorption capacity of 24,643 mg/g with absorption percentage 96,0292%.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114411406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. M. Razali, Desy Kurniawati, Edi Nasra, M. Khair
{"title":"Pengaruh pH dan Ukuran Partikel Terhadap Penyerapan Malachite Green Menggunakan Biosorben Dari Kulit Langsat (Lancium domesticum)","authors":"S. M. Razali, Desy Kurniawati, Edi Nasra, M. Khair","doi":"10.24036/p.v11i1.113477","DOIUrl":"https://doi.org/10.24036/p.v11i1.113477","url":null,"abstract":"","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122110772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alfindri Zulkarnaini, Hary Sanjaya, Yohandri Yohandri, Umar Kalmar Nizar
– Photosonolysis method can be used to degrade humic acid in peat swamp water with the he catalyst. This study aim to determine the ef UV-Vis spectrophotometer was used to ca degradation. .The result showed the highest percentage of using a ZnO catalyst. The highest degradation of peat swamp water was at 21.99% with a mass cata of ZnO.
{"title":"Degradasi Asam Humat Pada Air Rawa Gambut menggunakan Metode Fotosonolisis dengan Bantuan Katalis ZnO","authors":"Alfindri Zulkarnaini, Hary Sanjaya, Yohandri Yohandri, Umar Kalmar Nizar","doi":"10.24036/p.v11i1.113433","DOIUrl":"https://doi.org/10.24036/p.v11i1.113433","url":null,"abstract":"– Photosonolysis method can be used to degrade humic acid in peat swamp water with the he catalyst. This study aim to determine the ef UV-Vis spectrophotometer was used to ca degradation. .The result showed the highest percentage of using a ZnO catalyst. The highest degradation of peat swamp water was at 21.99% with a mass cata of ZnO.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129528443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
— Betacyanin is a water-soluble pigmentation compound in the skin of red dragon fruit. Betacyanin extraction aims to determine the functional group and its maximum wavelength using FTIR and UV-Vis spectrophotometers, respectively. Extraction of betacyanin from dragon fruit peel using ethanol and water in a 1:1 ratio with a stirring speed of 900 rpm for 16 hours. Characterization of betacyanin using FTIR showed betacyanin has an amine group or bond (N-H) derived from betalamic acid which is typical at wave numbers 1798-1607 cm -1 . At a wave number of 1486 cm -1 , it shows the presence of C=C strain vibrations from the aromatic ring. Betacyanin characterization using UV-Vis spectrophotometer showed a maximum wavelength of 530 nm.
红火龙果皮中的一种水溶性色素沉着化合物。甜菜花青素提取的目的是分别用FTIR和UV-Vis分光光度计测定其官能团和最大波长。用乙醇和水以1:1的比例，900转/分搅拌16小时，从火龙果皮中提取甜菜花青素。利用红外光谱对甜菜花青素进行了表征，发现甜菜花青素在波数1798 ~ 1607 cm -1处具有典型的β花青素酸衍生的氨基或键(N-H)。在波数为1486 cm -1时，它显示了芳香环的C=C应变振动的存在。紫外-可见分光光度计对甜菜菁苷进行了表征，其最大波长为530 nm。
{"title":"Ekstraksi dan Karakterisasi Betasianin dari Kulit Buah Naga Merah (Hylocereus sp.)","authors":"Rendi Ananda, Minda Azhar","doi":"10.24036/p.v11i1.113067","DOIUrl":"https://doi.org/10.24036/p.v11i1.113067","url":null,"abstract":"— Betacyanin is a water-soluble pigmentation compound in the skin of red dragon fruit. Betacyanin extraction aims to determine the functional group and its maximum wavelength using FTIR and UV-Vis spectrophotometers, respectively. Extraction of betacyanin from dragon fruit peel using ethanol and water in a 1:1 ratio with a stirring speed of 900 rpm for 16 hours. Characterization of betacyanin using FTIR showed betacyanin has an amine group or bond (N-H) derived from betalamic acid which is typical at wave numbers 1798-1607 cm -1 . At a wave number of 1486 cm -1 , it shows the presence of C=C strain vibrations from the aromatic ring. Betacyanin characterization using UV-Vis spectrophotometer showed a maximum wavelength of 530 nm.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121455816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Research that has been carried out on the photosonolysis degradation of methanyl yellow using a ZnO catalyst aims to determine the effect of radiation time on the degradation of methanyl yellow. The degradation time is about 30 to 150 minutes using a ZnO catalyst. The measurement results of the Uv- Vis spectrophotometer were obtained at a wavelength of 437nm. In the variation of the degradation time, the highest result was obtained at 60 minutes which was 76,11 %. This study showed that the hydroxyl radical (∙OH) was the main control in degrading methanil yellow
{"title":"Degradasi Zat Warna Methanil Yellow Menggunakan Metoda Fotosonolisis dengan Bantuan Katalis ZnO","authors":"Reska Putri, Hary Sanjaya","doi":"10.24036/p.v11i1.113422","DOIUrl":"https://doi.org/10.24036/p.v11i1.113422","url":null,"abstract":"Research that has been carried out on the photosonolysis degradation of methanyl yellow using a ZnO catalyst aims to determine the effect of radiation time on the degradation of methanyl yellow. The degradation time is about 30 to 150 minutes using a ZnO catalyst. The measurement results of the Uv- Vis spectrophotometer were obtained at a wavelength of 437nm. In the variation of the degradation time, the highest result was obtained at 60 minutes which was 76,11 %. This study showed that the hydroxyl radical (∙OH) was the main control in degrading methanil yellow","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"89 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127053565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
— Geopolymer is a material or binder that synthesized by mixing alumina silicate source material and alkaline activator solution. One of the source materials for alumina silicate is napa soil that contained hight amount of SiO 2 dan Al 2 O 3 with percentage 62,70% and 31,16% of XRF analysis after calcination, that can be used as material based of geopolymer. The aims of calcination is to increase the surface area of the aluminasilica material so that it can increase the maximum solubility of aluminasilica by alkaline activator. This study reports lost of ignition and blaine analysis of napa soil-based geopolymer cement with variations in alkali activator ratio Na 2 SiO 3 /NaOH is 1, 1.5, 2, 2.5. The charactization of napa soil-based geopolymer cement indicated the optimum lost of ignition and blaine analysis on the ratio Na 2 SiO 3 /NaOH is 2,5 which is 6,63% and 725 m 2 /kg, it is higher than ordinary cement based on SNI with minimum blaine analysis is 280 m 2 /kg.
{"title":"Pengaruh Rasio Na2SiO3/NaOH sebagai Alkali Aktivator Terhadap Hilang Pijar dan Kehalusan Butiran Semen (Blaine Analysis) Geopolimer Berbasis Tanah Napa","authors":"Vira Nilmania, Mawardi Mawardi","doi":"10.24036/p.v11i1.113373","DOIUrl":"https://doi.org/10.24036/p.v11i1.113373","url":null,"abstract":"— Geopolymer is a material or binder that synthesized by mixing alumina silicate source material and alkaline activator solution. One of the source materials for alumina silicate is napa soil that contained hight amount of SiO 2 dan Al 2 O 3 with percentage 62,70% and 31,16% of XRF analysis after calcination, that can be used as material based of geopolymer. The aims of calcination is to increase the surface area of the aluminasilica material so that it can increase the maximum solubility of aluminasilica by alkaline activator. This study reports lost of ignition and blaine analysis of napa soil-based geopolymer cement with variations in alkali activator ratio Na 2 SiO 3 /NaOH is 1, 1.5, 2, 2.5. The charactization of napa soil-based geopolymer cement indicated the optimum lost of ignition and blaine analysis on the ratio Na 2 SiO 3 /NaOH is 2,5 which is 6,63% and 725 m 2 /kg, it is higher than ordinary cement based on SNI with minimum blaine analysis is 280 m 2 /kg.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130240701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
— Research on the solubility of organic dyes in gelation of water in oil ( w/o) microemulsion of the system of water, cationic surfactant hexadecyl trimethyl ammonium bromide (HTAB) and pentanol the purpose was to prepare gels from microemulsions ( w/o ) using the sol-gel method and determine the solubility of organic dyes in microemulsion gelation ( w/o ), determine density values and refractive index in microemulsion gelation ( w/o ). Gel preparation was carried out using the sol-gel method by adding TEOS and ethanol in a ratio of 1:8 mol which is hydrolyzed with water to form a gel, the percentage of solubility of organic dyes in turmeric powder at pH 4.5 and 9.5, namely 3.92% and 3.95%, then for dragon fruit peel powder namely 1.96% and 1.93% at pH 4,5 and 9.5, Respectively. Density testing can be done to see the concentration of the greatest value namely turmeric 0.9243 gram/cm 3 and 0.9244 gram/cm 3 for pH 4.5 and 9.5, Furthermore. the measurement of the refractive index to see the homogeneity of the largest solution, namely turmeric at pH 4.5 and 9.5 namely 1.4204 and 1,4219.
{"title":"Kelarutan Zat Warna Organik Dalam Gelasi Mikroemulsi Water In Oil Sistem Air, Surfaktan Kationik (Hexadecyl Trimethyl Ammonium Bromide) dan Pentanol","authors":"Pamela Jurdilla, A. Putra","doi":"10.24036/p.v11i1.113389","DOIUrl":"https://doi.org/10.24036/p.v11i1.113389","url":null,"abstract":"— Research on the solubility of organic dyes in gelation of water in oil ( w/o) microemulsion of the system of water, cationic surfactant hexadecyl trimethyl ammonium bromide (HTAB) and pentanol the purpose was to prepare gels from microemulsions ( w/o ) using the sol-gel method and determine the solubility of organic dyes in microemulsion gelation ( w/o ), determine density values and refractive index in microemulsion gelation ( w/o ). Gel preparation was carried out using the sol-gel method by adding TEOS and ethanol in a ratio of 1:8 mol which is hydrolyzed with water to form a gel, the percentage of solubility of organic dyes in turmeric powder at pH 4.5 and 9.5, namely 3.92% and 3.95%, then for dragon fruit peel powder namely 1.96% and 1.93% at pH 4,5 and 9.5, Respectively. Density testing can be done to see the concentration of the greatest value namely turmeric 0.9243 gram/cm 3 and 0.9244 gram/cm 3 for pH 4.5 and 9.5, Furthermore. the measurement of the refractive index to see the homogeneity of the largest solution, namely turmeric at pH 4.5 and 9.5 namely 1.4204 and 1,4219.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123675982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Habibur Rahman Dafnaz, Budhi Oktavia, Hardeli Hardeli, Umar Kalmar Nizar
Silica is a useful material in adsorption, electronics, mechanical, medical, art to other fields. In this study, Sodium silicate is used which can be used as a more economical precursor of silica as which is produced from natural silica. Silica was synthesized using the sol-gel method. This study aims to determine the effect of adding CTAB mass and aging time in synthesizing silica. The synthesized silica was tested for iodine absorption value and characterized using FTIR. Based on the iodine absorption of variations in adding mass CTAB (0,1, 0,15, 0,2, 0,25, and 0,3 gram) and aging time (8, 12, 16, 20 and 24 hours) give the most absorption to optimum conditions of adding mass CTAB at 0,2 gram and aging time at 16 hours. The results of measurements with FTIR showed the presence of absorption bands which indicated the loss of CTAB in the synthesized silica.
{"title":"Pengaruh Penambahan Cetyltrimethylammonium Bromide (CTAB) pada Silika dari Natrium Silikat (Na2SiO3)","authors":"Habibur Rahman Dafnaz, Budhi Oktavia, Hardeli Hardeli, Umar Kalmar Nizar","doi":"10.24036/p.v11i1.113765","DOIUrl":"https://doi.org/10.24036/p.v11i1.113765","url":null,"abstract":"Silica is a useful material in adsorption, electronics, mechanical, medical, art to other fields. In this study, Sodium silicate is used which can be used as a more economical precursor of silica as which is produced from natural silica. Silica was synthesized using the sol-gel method. This study aims to determine the effect of adding CTAB mass and aging time in synthesizing silica. The synthesized silica was tested for iodine absorption value and characterized using FTIR. Based on the iodine absorption of variations in adding mass CTAB (0,1, 0,15, 0,2, 0,25, and 0,3 gram) and aging time (8, 12, 16, 20 and 24 hours) give the most absorption to optimum conditions of adding mass CTAB at 0,2 gram and aging time at 16 hours. The results of measurements with FTIR showed the presence of absorption bands which indicated the loss of CTAB in the synthesized silica.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132003756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
– Dye Sensitized Solar Cell (DSSC) is a solar cell that use dyes to absorb energy from sunlight which will be converted into electrical energy. The π bonds contained in the dye will absorb photons from sunlight, the number of π bonds can have an impact on the efficiency of the DSSC solar cell. Polymerization is a method used to multiply π bonds. In this research, the dye used is tannin because it has a conjugated π bond and is able to absorb photons from sunlight. Polymerized tannins (polytannins) will be used as dyes in DSSC. In the polymerization of tannins using KOH as an initiator which is a source of free radicals and is able to extend the polymer chain. The poly-tannins produced were characterized by using the Fourier Transform Infra Red (FTIR) instrument, indicating the formation of poly-tannins with the appearance of a methyl group (-CH2) at a wavelength of 2942.46 cm-1 which appeared in the tannin polymerization process. The optimum efficiency of DSSC produced using poly-tannin is 7.019% with a maximum concentration of 2% KOH .
{"title":"Pengaruh KOH Sebagai Inisiator Pada Polimerisasi Tanin Terhadap Efisiensi Sel Surya DSSC","authors":"Resi Gusmar Lina, Hardeli Hardeli","doi":"10.24036/p.v11i1.113559","DOIUrl":"https://doi.org/10.24036/p.v11i1.113559","url":null,"abstract":"– Dye Sensitized Solar Cell (DSSC) is a solar cell that use dyes to absorb energy from sunlight which will be converted into electrical energy. The π bonds contained in the dye will absorb photons from sunlight, the number of π bonds can have an impact on the efficiency of the DSSC solar cell. Polymerization is a method used to multiply π bonds. In this research, the dye used is tannin because it has a conjugated π bond and is able to absorb photons from sunlight. Polymerized tannins (polytannins) will be used as dyes in DSSC. In the polymerization of tannins using KOH as an initiator which is a source of free radicals and is able to extend the polymer chain. The poly-tannins produced were characterized by using the Fourier Transform Infra Red (FTIR) instrument, indicating the formation of poly-tannins with the appearance of a methyl group (-CH2) at a wavelength of 2942.46 cm-1 which appeared in the tannin polymerization process. The optimum efficiency of DSSC produced using poly-tannin is 7.019% with a maximum concentration of 2% KOH .","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128111324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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