Click reactions are not specific reactions, but they are a way of generating products that follow examples in nature by joining small moieties, with each other producing a huge molecule in a good yield. The mind of that reaction is used in biomolecules synthesis, pharmacological and various biometric applications. The first Click reaction is the Copper compounds-catalyzed reaction of an azide with an alkyne (CuAAC), this copper-catalyzed “click” does not require legands on the metal but the metal oxides also can accelerate the reactions. For enhancement the products of Click reactions we were replacing the copper compounds in a classical reaction by the prepared nanocopper compound (NPs). And measure the consumption of starting material. Behind the evolution is the catalytic effect of nanocopper compounding (NPs) on (H2O2). Owing to the huge surface area of nanocopper compound (NPs), it was found that: the (NPs) can speed up decomposition of H2O2, also can accelerate the classical click reaction.
{"title":"Nano-copper Oxide as Catalyst for Click Reactions","authors":"Reda, Abdelhady, Mustafa, ElKhashab, Abdelaziz, Ahmed, Nayl, Elsayed, Mohamed, Badawy, TamerAbdelmoemen, Malah","doi":"10.17265/1934-7375/2016.07.005","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.07.005","url":null,"abstract":"Click reactions are not specific reactions, but they are a way of generating products that follow examples in nature by joining small moieties, with each other producing a huge molecule in a good yield. The mind of that reaction is used in biomolecules synthesis, pharmacological and various biometric applications. The first Click reaction is the Copper compounds-catalyzed reaction of an azide with an alkyne (CuAAC), this copper-catalyzed “click” does not require legands on the metal but the metal oxides also can accelerate the reactions. For enhancement the products of Click reactions we were replacing the copper compounds in a classical reaction by the prepared nanocopper compound (NPs). And measure the consumption of starting material. Behind the evolution is the catalytic effect of nanocopper compounding (NPs) on (H2O2). Owing to the huge surface area of nanocopper compound (NPs), it was found that: the (NPs) can speed up decomposition of H2O2, also can accelerate the classical click reaction.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":"341-346"},"PeriodicalIF":0.0,"publicationDate":"2016-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67524437","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}
Pub Date : 2016-07-28DOI: 10.17265/1934-7375/2016.07.003
T. Egbuchunam, G. Obi, Felix Ebhodaghe OkieimenSenem Yetgin, Senem Yetgin
Para-nitrophenol adsorbed on bone char synthesized from cow bones has been studied. The Langmuir Freundlich and Sips models were applied to the equilibrium data to describe the adsorption process. The Langmuir model best described the adsorption process with R = 0.919; and maximum adsorption capacity, qmax of 365.76 mg/g. Batch kinetic studies conformed to pseudo-second-order indicating that several mechanisms may be involved in the process and gave a value of 2.5 × 10 g/mg/min for the rate constant for the sorption of p-nitrophenol on bone char. The values of thermodynamic parameters, free energy ≈ -22.0 kJ/mol, enthalpy -20.2 kJ/mol and entropy 5.34 J/K mol for the adsorption of p-nitrophenol on bone char showed that the adsorption was spontaneous and exothermic.
{"title":"Adsorptive Removal of p-Nitrophenol from Aqueous Solution by Bone Char: Equilibrium and Kinetic Studies","authors":"T. Egbuchunam, G. Obi, Felix Ebhodaghe OkieimenSenem Yetgin, Senem Yetgin","doi":"10.17265/1934-7375/2016.07.003","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.07.003","url":null,"abstract":"Para-nitrophenol adsorbed on bone char synthesized from cow bones has been studied. The Langmuir Freundlich and Sips models were applied to the equilibrium data to describe the adsorption process. The Langmuir model best described the adsorption process with R = 0.919; and maximum adsorption capacity, qmax of 365.76 mg/g. Batch kinetic studies conformed to pseudo-second-order indicating that several mechanisms may be involved in the process and gave a value of 2.5 × 10 g/mg/min for the rate constant for the sorption of p-nitrophenol on bone char. The values of thermodynamic parameters, free energy ≈ -22.0 kJ/mol, enthalpy -20.2 kJ/mol and entropy 5.34 J/K mol for the adsorption of p-nitrophenol on bone char showed that the adsorption was spontaneous and exothermic.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67524211","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}
Pub Date : 2016-07-28DOI: 10.17265/1934-7375/2016.07.002
M. Ahmadov, N. Ibadov, V. Balayev
The present study was conducted to investigate the heavy metal contents (As, Ba, Cu, Ga, Mo, Rb, U, and V), inorganic nutrients (NO2, NH4, NO3, PO4 and SiO2), THC and 16EPA PAHs in seawater samples, which were collected at two different sites of Azerbaijan sector of the Caspian Sea. The Agilent 7700x Series ICP-MS with HMI system is applied to analysis seawater. Inorganic nutrients defined by spectrocolorometry HACH DR5000. Dependence concentration of elements from water columns depth can be explained in accordance with the geochemical system of classification of dissolved forms of elements in the sea water. Hydrocarbons are extracted with methylene chloride, after the extracts are cleaned on silica-gel columns and then injected into GC/FID for determination of THC and GC/M Soperating in the selected-ion-monitoring mode for determination of the 16EPA PAHs. The average concentrations of THC were below the admissible environmental levels. THC ranged from 20-29 μg/L and PAHs from < 10-29 ng/L, respectively.
{"title":"Water Column Depth Dependence of Trace Metals, Inorganic Nutrients and Hydrocarbons in Caspian Seawater Taken from Areas of Azerbaijan","authors":"M. Ahmadov, N. Ibadov, V. Balayev","doi":"10.17265/1934-7375/2016.07.002","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.07.002","url":null,"abstract":"The present study was conducted to investigate the heavy metal contents (As, Ba, Cu, Ga, Mo, Rb, U, and V), inorganic nutrients (NO2, NH4, NO3, PO4 and SiO2), THC and 16EPA PAHs in seawater samples, which were collected at two different sites of Azerbaijan sector of the Caspian Sea. The Agilent 7700x Series ICP-MS with HMI system is applied to analysis seawater. Inorganic nutrients defined by spectrocolorometry HACH DR5000. Dependence concentration of elements from water columns depth can be explained in accordance with the geochemical system of classification of dissolved forms of elements in the sea water. Hydrocarbons are extracted with methylene chloride, after the extracts are cleaned on silica-gel columns and then injected into GC/FID for determination of THC and GC/M Soperating in the selected-ion-monitoring mode for determination of the 16EPA PAHs. The average concentrations of THC were below the admissible environmental levels. THC ranged from 20-29 μg/L and PAHs from < 10-29 ng/L, respectively.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67524135","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.005
A. Anukam, S. Mamphweli, P. Reddy, O. Okoh, E. Meyer
Gasification efficiency is an important factor that determines the actual technical operation as well as the economic viability of using a gasifier system for energy production. In this study, the ...
{"title":"Assessment of the Influence of Torrefied Biomass Physical Characteristics, Design and Operating Variables on Gasification Efficiency","authors":"A. Anukam, S. Mamphweli, P. Reddy, O. Okoh, E. Meyer","doi":"10.17265/1934-7375/2016.06.005","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.005","url":null,"abstract":"Gasification efficiency is an important factor that determines the actual technical operation as well as the economic viability of using a gasifier system for energy production. In this study, the ...","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"93 1","pages":"283-292"},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523832","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.007
A. Yerkin, Nakisbekov Narymzhan, Yemelyanova Valentina, S. Ruben
The authors have proposed a new of magnetic isotope theory of life on Earth. According to this theory the initial impetus for the beginning of the synthesis of organic compounds is the impact of electromagnetic radiation from the sun and energy radioactive isotopes.
{"title":"Magnetic Isotope Theory of the Origin of Life on Earth","authors":"A. Yerkin, Nakisbekov Narymzhan, Yemelyanova Valentina, S. Ruben","doi":"10.17265/1934-7375/2016.06.007","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.007","url":null,"abstract":"The authors have proposed a new of magnetic isotope theory of life on Earth. According to this theory the initial impetus for the beginning of the synthesis of organic compounds is the impact of electromagnetic radiation from the sun and energy radioactive isotopes.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523969","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.006
U. Osonwa, Onyinye J. Uwaezuoke, Ngozi Ilunoh
The aim of this work was to increase the efficacy of erythromycin ethyl succinate by encapsulation in beeswax lipid matrix using Myrj 52 as emulsifier. Different batches of SLM’s (solid-lipid microparticles) were formulated and stable ones were selected. The encapsulation efficiency and loading capacities were calculated. The batch with the highest loading capacity was used for further assays. The particle size was determined by light microscopy. The sensitivity of different clinical bacterial isolates to erythromycin was tested using in vitro cultures and E. coli was selected for efficacy tests. The activity of the formulated drug was tested in the in vitro culture and compared to that of the unformulated drug. White albino mice were infected with E. coli and left for one day to develop significant bacteremia. They were then divided into 4 groups (n = 4) and treated with the formulation and unformulated drug at a dose of 7.14 mg/kg 8 hourly for 56 hours. A third group was given SLM’s that do not contain drug, while another group was left untreated. The selected batch has an encapsulation efficiency of 94.83% with a loading capacity of 3.88%. The particle size was 17 ± 4 μm. At the end of the three day period of treatment, the group treated with unformulated erythromycin had much stooling and weakness in the mice, and some deaths were recorded, while that treated with the formulation had 33.8% bacteremia and the clinical signs had largely subsided. The other two groups recorded deaths the following day after bacteremia induction. The results show marked improvement in efficacy of erythromycin ethyl succinate by formulation in SLMs with beeswax and lecithin as lipid matrix.
{"title":"Beeswax-Lecithin SLMs of Erythromycin Ethyl Succinate for Treatment of Acute Bacteremia in Infected Mice","authors":"U. Osonwa, Onyinye J. Uwaezuoke, Ngozi Ilunoh","doi":"10.17265/1934-7375/2016.06.006","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.006","url":null,"abstract":"The aim of this work was to increase the efficacy of erythromycin ethyl succinate by encapsulation in beeswax lipid matrix using Myrj 52 as emulsifier. Different batches of SLM’s (solid-lipid microparticles) were formulated and stable ones were selected. The encapsulation efficiency and loading capacities were calculated. The batch with the highest loading capacity was used for further assays. The particle size was determined by light microscopy. The sensitivity of different clinical bacterial isolates to erythromycin was tested using in vitro cultures and E. coli was selected for efficacy tests. The activity of the formulated drug was tested in the in vitro culture and compared to that of the unformulated drug. White albino mice were infected with E. coli and left for one day to develop significant bacteremia. They were then divided into 4 groups (n = 4) and treated with the formulation and unformulated drug at a dose of 7.14 mg/kg 8 hourly for 56 hours. A third group was given SLM’s that do not contain drug, while another group was left untreated. The selected batch has an encapsulation efficiency of 94.83% with a loading capacity of 3.88%. The particle size was 17 ± 4 μm. At the end of the three day period of treatment, the group treated with unformulated erythromycin had much stooling and weakness in the mice, and some deaths were recorded, while that treated with the formulation had 33.8% bacteremia and the clinical signs had largely subsided. The other two groups recorded deaths the following day after bacteremia induction. The results show marked improvement in efficacy of erythromycin ethyl succinate by formulation in SLMs with beeswax and lecithin as lipid matrix.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67524371","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.002
Bruno Teixeira Guerra, A. Leal, C. Pereira, M. Menezes
{"title":"Monte Carlo Simulations for a Preliminary Design of TRIGA IPR-R1 PGAA Facility","authors":"Bruno Teixeira Guerra, A. Leal, C. Pereira, M. Menezes","doi":"10.17265/1934-7375/2016.06.002","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.002","url":null,"abstract":"","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523931","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.003
Andrea Komesu, J. Oliveira, M. Maciel, R. M. Filho
This work describes the separation and purification of lactic acid from diluted solution by HSPE (hybrid short path evaporation) and RD (reactive distillation) as coupled process. The results showed that it is possible to increase lactic acid concentration up to 4.7 times higher than the raw material concentration.
{"title":"Separation of Lactic Acid from Diluted Solution by Hybrid Short Path Evaporation and Reactive Distillation","authors":"Andrea Komesu, J. Oliveira, M. Maciel, R. M. Filho","doi":"10.17265/1934-7375/2016.06.003","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.003","url":null,"abstract":"This work describes the separation and purification of lactic acid from diluted solution by HSPE (hybrid short path evaporation) and RD (reactive distillation) as coupled process. The results showed that it is possible to increase lactic acid concentration up to 4.7 times higher than the raw material concentration.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523647","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.004
Amani S. Alturiqi
Coated wire sensor for potentiometric determination of DAP (dapoxetine HCl) in pure form and in biological fluids based on DAP-TPB (dapoxetine-tetraphenyl borate) as the sensing element in the presence of DOP (dioctylphthalate) as the plasticizing solvent mediator was prepared. The best performance was obtained with a membrane composition of 10.0% (w/w) ion-pair, 45.0% DOP (w/w) and 45.0% PVC (w/w). The electrode showed a Nernstian response (with a slope of 58.70 mV decade) for the concentration range of 4.2 × 10-1.0 × 10 mol/L. It illustrates a relatively fast response time in the whole concentration range (~15 s) in a pH range of 3.0-7.5 . The selectivity coefficients were determined in relation to several inorganic and organic species. DAP is determined successfully in pure solutions and in biological fluids using the standard additions and potentiometric titrations methods.
{"title":"Electrochemical Determination of Dapoxetine HCl in Biological Fluids Using Coated Wire Electrod","authors":"Amani S. Alturiqi","doi":"10.17265/1934-7375/2016.06.004","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.004","url":null,"abstract":"Coated wire sensor for potentiometric determination of DAP (dapoxetine HCl) in pure form and in biological fluids based on DAP-TPB (dapoxetine-tetraphenyl borate) as the sensing element in the presence of DOP (dioctylphthalate) as the plasticizing solvent mediator was prepared. The best performance was obtained with a membrane composition of 10.0% (w/w) ion-pair, 45.0% DOP (w/w) and 45.0% PVC (w/w). The electrode showed a Nernstian response (with a slope of 58.70 mV decade) for the concentration range of 4.2 × 10-1.0 × 10 mol/L. It illustrates a relatively fast response time in the whole concentration range (~15 s) in a pH range of 3.0-7.5 . The selectivity coefficients were determined in relation to several inorganic and organic species. DAP is determined successfully in pure solutions and in biological fluids using the standard additions and potentiometric titrations methods.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523732","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}
Pub Date : 2016-06-28DOI: 10.17265/1934-7375/2016.06.001
D. Maya, A. L. E. Sarmiento, C. Oliveira, E. Lora, R. Andrade
This article reviews the literature on thermochemical processing of municipal solid waste as the final disposal in Brazil, explores recent publications in the field of solid waste generated, its origin, characteristics and removal mechanisms currently employed, in the same way , available technologies for the thermochemical treatment of MSW with an emphasis on gasification and clean technology are evaluated, highlighting the current technical and reported in the literature in order to identify indicators of efficiency and flexibility of the technology. From the review it is concluded that gasification is a technically feasible option for the thermochemical conversion of municipal solid waste and subsequent power generation, besides being a technology that meets the applicable emission limits. Some of the main advantages of gasification of municipal solid waste are: (a) the sharp reduction in the waste mass (about 70-80%) and volume (approximately 80-90%); (b) the drastic reduction in land use, 1:3000; (c) destruction of organic pollutants and other halogenated hydrocarbons; (d) concentration and immobilisation of inorganic contaminants so that they can be used effectively and safely removed; (e) use recyclables, such as ferrous metals, ferrous ash and slag materials; (f) reducing emissions of greenhouse gases by anaerobic decomposition of organic waste and (g) power generation.
{"title":"Gasification of Municipal Solid Waste for Power Generation in Brazil, a Review of Available Technologies and Their Environmental Benefits","authors":"D. Maya, A. L. E. Sarmiento, C. Oliveira, E. Lora, R. Andrade","doi":"10.17265/1934-7375/2016.06.001","DOIUrl":"https://doi.org/10.17265/1934-7375/2016.06.001","url":null,"abstract":"This article reviews the literature on thermochemical processing of municipal solid waste as the final disposal in Brazil, explores recent publications in the field of solid waste generated, its origin, characteristics and removal mechanisms currently employed, in the same way , available technologies for the thermochemical treatment of MSW with an emphasis on gasification and clean technology are evaluated, highlighting the current technical and reported in the literature in order to identify indicators of efficiency and flexibility of the technology. From the review it is concluded that gasification is a technically feasible option for the thermochemical conversion of municipal solid waste and subsequent power generation, besides being a technology that meets the applicable emission limits. Some of the main advantages of gasification of municipal solid waste are: (a) the sharp reduction in the waste mass (about 70-80%) and volume (approximately 80-90%); (b) the drastic reduction in land use, 1:3000; (c) destruction of organic pollutants and other halogenated hydrocarbons; (d) concentration and immobilisation of inorganic contaminants so that they can be used effectively and safely removed; (e) use recyclables, such as ferrous metals, ferrous ash and slag materials; (f) reducing emissions of greenhouse gases by anaerobic decomposition of organic waste and (g) power generation.","PeriodicalId":67212,"journal":{"name":"化学与化工:英文版","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67523803","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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