Journal of the Ghana Science Association最新文献

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Organochlorine Pesticide Residues in Sardinella Aurita from the Coastal Waters of Accra-Tema, Ghana and their Potential Health Risks 加纳阿克拉特马沿海水域Aurita沙丁鱼中有机氯农药残留及其潜在健康风险
Journal of the Ghana Science Association Pub Date : 2011-09-01 DOI: 10.4314/JGSA.V13I1.69190
E. Nyarko, B. Botwe, Aa Bampoe, S. Addo, A. Armah, W. Ntow, P. Kelderman
{"title":"Organochlorine Pesticide Residues in Sardinella Aurita from the Coastal Waters of Accra-Tema, Ghana and their Potential Health Risks","authors":"E. Nyarko, B. Botwe, Aa Bampoe, S. Addo, A. Armah, W. Ntow, P. Kelderman","doi":"10.4314/JGSA.V13I1.69190","DOIUrl":"https://doi.org/10.4314/JGSA.V13I1.69190","url":null,"abstract":"Sardinella aurita and seawater samples from the Accra-Tema coast of Ghana were analysed for organochlorine (OC) pesticides using gas chromatography (GC) with electron capture detection (ECD). Residues of DDTs (p,p�-DDT, p,p�-DDE, p,p�-DDD), hexachlorocyclohexane (HCHs - �-HCH, �-HCH and �-HCH), endosulfan (�-endosulfan, �-endosulfan, endosulfan sulphate) and heptachlor were detected in fish at average concentrations ranging from 3.0 to 1235.0 �g/kg wet wt. These residues were, however, below the detection limit in seawater samples. Significant differences (p < 0.05) in residue levels were also observed across sites, decreasing from Chorkor to Kpone for seven (7) of the residues that were detected in S. aurita. Evaluation of hazard ratios (HRs) and the health risk associated with OC exposure from consumption of sardinellas re-vealed a probability of adverse health effect due to p,p�-DDT, �-HCH and heptachlor. Hence, p,p�-DDT, �-HCH and heptachlor may be of particular health concern.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114155013","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}
引用次数: 5
Deriving a Linearised Ozone Chemistry Scheme for a 3-D Chemical Transport Model of the Middle Atmosphere 中大气三维化学输运模式的线性化臭氧化学格式的推导
Journal of the Ghana Science Association Pub Date : 2011-09-01 DOI: 10.4314/jgsa.v13i1.69179
A. Amankwah, K. G. Adanu, B. Sinnhuber, M. Sinnhuber, J. Burrows
{"title":"Deriving a Linearised Ozone Chemistry Scheme for a 3-D Chemical Transport Model of the Middle Atmosphere","authors":"A. Amankwah, K. G. Adanu, B. Sinnhuber, M. Sinnhuber, J. Burrows","doi":"10.4314/jgsa.v13i1.69179","DOIUrl":"https://doi.org/10.4314/jgsa.v13i1.69179","url":null,"abstract":"A simple but computer efficient parameterized ozone chemistry is developed to account for up-dates in reaction rate recommendations, and also completely assess the contributions of the indi-vidual catalytic cycles to the ozone budget in the entire stratosphere. Two conceptual ap-proaches, namely total time approach and rate limiting step approach, have been used to im-prove upon an existing comprehensive stratospheric chemistry model to calculate the coefficient of linearised ozone chemistry scheme. The total time approach is accurate in calculating for the coefficients of the ozone chemistry scheme whiles the rate limiting step approach is effective in assessing the contributions of the individual catalytic cycles to the ozone budget. The catalytic cycle with the rate limiting step of NO2/O is very prominent in altitudes between 15 and 48 km, and peaks at 30 km with ozone loss percentage contribution of about 75%. HO2/O rate limiting step dominates above 40 km and peaks around 58 km with about 90% loss contribution to the ozone budget. Rate limiting steps involving BrO were the least ozone loss reactions in the set at the chosen mid-latitude June condition, and they concentrate at the lower stratosphere.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"149 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130788209","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}
引用次数: 0
Comparative efficacy of four rodenticides on the Ghanaian market 加纳市场上四种灭鼠剂的比较功效
Journal of the Ghana Science Association Pub Date : 2011-09-01 DOI: 10.4314/JGSA.V13I1.69186
F. Gbogbo, K. Adomako
{"title":"Comparative efficacy of four rodenticides on the Ghanaian market","authors":"F. Gbogbo, K. Adomako","doi":"10.4314/JGSA.V13I1.69186","DOIUrl":"https://doi.org/10.4314/JGSA.V13I1.69186","url":null,"abstract":"Due to the enormous damage that rodents cause to agricultural produce, merchandise and hu-man health all over the world, large sums of money is often spent on rodenticides in order to control rodent populations. A number of rodenticides exist on the Ghanaian market on which there is limited scientific data on their efficacy and use. This study investigated the efficacy of four rodenticides namely Storm (flocoumafen at 0.005% w/w), Baraki (difethialone at 0.0025% w/w), Chinaman (diphacinone at 0.005% w/w) and Zinc Phosphide on the Ghanaian market, on white laboratory rats (Rattus novigicus). The results indicated that product acceptability by the rats within 24 hours was significantly higher for Storm (20.6�1.3g) and Baraki (17.8�5.5g) as compared to Chinaman (5.4�0.3g) and Zinc Phosphide (3.2�1.7g) (ANOVA, p < 0.05). Con-sumption of Storm, Baraki and Zinc Phophide produced lethal effects with mean time of death ranging from 4.0�1, 3.8�1 to 1.0 days respectively indicating that Baraki and Storm exhibited delayed lethal effects. Although product acceptability for Zinc Phosphide was low, the amount needed to produce lethal effects in white laboratory rats was small and appeared to have been consumed over a single encounter. The study provides baseline data for further investigations and field trials.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122615526","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}
引用次数: 0
The Relationship Between Systemic Blood Pressure and Intraocular Pressure in a Hospital Sample of Ghanaian Adults 加纳成人医院样本体血压和眼压的关系
Journal of the Ghana Science Association Pub Date : 2011-09-01 DOI: 10.4314/JGSA.V13I1.69187
A. Ilechie, A. Daudi
{"title":"The Relationship Between Systemic Blood Pressure and Intraocular Pressure in a Hospital Sample of Ghanaian Adults","authors":"A. Ilechie, A. Daudi","doi":"10.4314/JGSA.V13I1.69187","DOIUrl":"https://doi.org/10.4314/JGSA.V13I1.69187","url":null,"abstract":"Some studies in the Caucasian subject showed that systemic blood pressure is related to in-traocular pressure (IOP) and that hypertensive patients are prone to develop raised IOP (glaucoma) but there are few records from black Africans where systemic hypertension is com-mon. We have thus examined IOP in 113 hypertensive patients and compared their IOP with IOP in 74 normotensive patients. The results showed that mean IOP was higher in hypertensive than normotensive subjects (p< 0.001) and there was a significant correlation between blood pressure distribution and IOP in the combined population. Therefore patients with high blood pressure should be screened for open angle glaucoma as a preventive measure.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124043015","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}
引用次数: 1
Effects of Bicarbonate Limitation and Salinity Stress on Growth and Photosynthesis in the Green Alga Picochlorum Oklahomensis 碳酸氢盐限制和盐胁迫对俄克拉何马皮氯藻生长和光合作用的影响
Journal of the Ghana Science Association Pub Date : 2011-09-01 DOI: 10.4314/JGSA.V13I1.69180
J. Annan, W. Henley
{"title":"Effects of Bicarbonate Limitation and Salinity Stress on Growth and Photosynthesis in the Green Alga Picochlorum Oklahomensis","authors":"J. Annan, W. Henley","doi":"10.4314/JGSA.V13I1.69180","DOIUrl":"https://doi.org/10.4314/JGSA.V13I1.69180","url":null,"abstract":"Photosynthetic organisms rarely experience optimal growth conditions in their natural habitat, and at any given time, two or more physical and chemical variables are likely to be suboptimal. The extreme environment of the Great Salt Plains (GSP) results in low algal biomass, such that natural selection is likely driven by survival of multiple abiotic stresses rather than rapid growth and biotic interactions. The objective of this study is to determine the effect of combined salinity stress and carbon limitation on growth and photosynthesis in the green alga Picochlorum okla-homensis isolated from the GSP habitat. Algal cells were grown in batch cultures under bicar-bonate sufficiency (control) or low bicarbonate at salinities of 10, 50 and100 ppt. in artificial seawater (AS 100) medium. Cells were physiologically characterized by initial growth rates, cell yields, photosynthetic light-response curves (oxygen evolution), pigment composition, and the chlorophyll fluorescence parameters Fv/Fm, �PSII, qP and NPQ. Low bicarbonate and increasing salinity from 10 to 100 ppt, as well as the bicarbonate-salinity interaction resulted in significant lower cell yields and initial growth rates. In general, high salinity resulted in significant primary effects for the majority of variables but a significant effect of bicarbonate and bicarbonate-salinity interaction were less common among the physiological variables. </","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114563032","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}
引用次数: 0
Clenbuterol-Stimulated Glucose Uptake Activates both GS and GI Pathways through Β2-Adrenoceptor in Mouse Isolated Soleus Muscle 克仑特罗刺激的葡萄糖摄取通过Β2-Adrenoceptor激活小鼠离体比目鱼肌的GS和GI通路
Journal of the Ghana Science Association Pub Date : 2010-12-14 DOI: 10.4314/jgsa.v12i2.62814
R. Ngala, J. Arch, M. Cawthorne
{"title":"Clenbuterol-Stimulated Glucose Uptake Activates both GS and GI Pathways through Β2-Adrenoceptor in Mouse Isolated Soleus Muscle","authors":"R. Ngala, J. Arch, M. Cawthorne","doi":"10.4314/jgsa.v12i2.62814","DOIUrl":"https://doi.org/10.4314/jgsa.v12i2.62814","url":null,"abstract":"β2-adrenoceptors activated by adrenaline can also couple to both Gs and Gi proteins. The former is associated with an increase in cAMP to illicit the effect of the catecholamine. In the later, β2-AR induces PKA-catalysed phosphorylation of the receptor, which intends couples to Gi, at high concentration. We proposed that, clenbuterol which stimulates glucose uptake at low concentra-tion and inhibits it at high concentration might have identical signalling pathway as adrenaline. Mouse isolated muscles were pre-incubated in flasks containing 3 ml of Krebs-Henseleit Bicar-bonate buffer. After 120 min of pre-incubation, with the appropriate concentration of PTX the muscles were transferred to another incubation flask containing 3 ml of the same buffer and 0.3mCi 2-deoxy[1-14C]glucose containing varying concentrations of adrenaline, clenbuterol or 1nM insulin with or without PTX concentrations of 100ng/ml for adrenaline and clenbuterol and 0.1 or 1.0ng/ml for insulin, or 1M acetylcholine for 45 minutes. Adrenaline stimulated glu-cose uptake in isolated mouse soleus muscle at low concentration (10-10M) and inhibited it at high concentration (10-5M). The effect of the lower concentration was mediated through the β2-AR coupling to the Gs protein and to the Gi protein at high concentration. Similarly, clenbuterol stimulated glucose uptake at lower concentration (10-11M) is mediated through the β2-AR cou-pling to the Gs protein and to the Gi protein at the higher concentration (10-7M). These effects of high concentration of adrenaline and clenbuterol were supported by the fact that 100ng/ml PTX relieved their inhibitory effects. The higher concentration effect of clenbuterol was additionally supported by the fact that, 1M acetylcholine, relieved the inhibitory effect. Keywords: PTX, Pertusis toxin, G-proteins, Guanine nucleotide binding proteins, β-AR, beta adrenoceptor, M2, muscarinic receptors","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128692765","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}
引用次数: 0
The Effect of Thermal Annealing on the Optical Band Gap of Cd1-xZnxS Thin Films Deposited by the Dip Technique 热退火对浸镀Cd1-xZnxS薄膜光学带隙的影响
Journal of the Ghana Science Association Pub Date : 2010-12-14 DOI: 10.4314/JGSA.V12I2.62797
D. Ompong, K. Ampong, F. Boakye
{"title":"The Effect of Thermal Annealing on the Optical Band Gap of Cd1-xZnxS Thin Films Deposited by the Dip Technique","authors":"D. Ompong, K. Ampong, F. Boakye","doi":"10.4314/JGSA.V12I2.62797","DOIUrl":"https://doi.org/10.4314/JGSA.V12I2.62797","url":null,"abstract":"The effect of thermal annealing on the optical band gap of Cd1-xZnxS (x= 0.2, 0.4, 0.6, 0.8) thin films have been investigated. The films were deposited using the dip technique. The fundamental optical property which has been investigated here is the absorbance of light at room temperature, using the KLB Ultraspec II 4050 (UV/Visible) spectrophotometer over the wavelength range 300 – 900 nm. The energy band gap and absorption coefficient of the films were determined from the absorption spectrum. The optical band gap of the as-deposited films varied from 2.42 eV (x =0.2) to 3.61 eV (x =0.8), that is, the band gap increased with increasing Zn concentration of the alloy. These values compare favorably well with that obtained from literature of similar films prepared using other deposition techniques. The as-deposited samples were thermally annealed in air for an hour at temperatures of 100°C, 200°C and 300°C and the absorption spectra again recorded. It was observed that thermal annealing decreased the band gap of the samples; this may be due to improving crystallinity or alternatively, a phase transformation taking place in the samples as a result of the heat treatment.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114892665","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}
引用次数: 2
Measurement and Enhancement of Plasticity Indices of some Extruded Ghanaian Clays 几种膨化加纳粘土塑性指标的测定与提高
Journal of the Ghana Science Association Pub Date : 2010-12-14 DOI: 10.4314/jgsa.v12i2.62803
P. S. Kwawukume, A. Essuman, R. Amoanyi
{"title":"Measurement and Enhancement of Plasticity Indices of some Extruded Ghanaian Clays","authors":"P. S. Kwawukume, A. Essuman, R. Amoanyi","doi":"10.4314/jgsa.v12i2.62803","DOIUrl":"https://doi.org/10.4314/jgsa.v12i2.62803","url":null,"abstract":"The use of simple equipment that can reliably calculate plasticity indices of three local clays (Cape Coast, Fosu and Teleku Bokazzo) in both aqueous and organic media by extrusion method was studied. Experimental procedures were followed and one basic modification was made to Worrall and Khan measurement of rate of flow of plastic clays in order to prevent sud-den rush of compressed air. Results indicate that plasticity brought about by ageing can be measured for clays in aqueous and organic medium. Clays aged for a further period of six months in aqueous medium showed greater plasticity index values confirming the reliability of the measuring instrument. The study revealed that Teleku Bokazzo Kaolin in organic medium has high plasticity that can be exploited in various product developments especially in refractory production where low iron content clays are usually needed. Plasticity of local clays can be measured accurately and reliable plasticity indices can be controlled by the length of ageing time for consistent manufacturing results.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115942874","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}
引用次数: 1
Improvement of Strength on Local Pottery Clays by Traditional Ageing of Clays 传统熟化法提高陶土强度的研究
Journal of the Ghana Science Association Pub Date : 2010-12-14 DOI: 10.4314/JGSA.V12I2.62806
P. S. Kwawukume, A. Essuman, R. Amoanyi
{"title":"Improvement of Strength on Local Pottery Clays by Traditional Ageing of Clays","authors":"P. S. Kwawukume, A. Essuman, R. Amoanyi","doi":"10.4314/JGSA.V12I2.62806","DOIUrl":"https://doi.org/10.4314/JGSA.V12I2.62806","url":null,"abstract":"The effect of ageing on various parameters such as particle size distribution, specific surface area, dry strength, shrinkage, fired strength, bulk density, and moisture content of clay was stud-ied. The results indicate that ageing introduces finer particle sizes due to a progressive increase in the proportion of the fine particles as the system is aged, the critical moisture content of the aged clays are higher than the unaged clays and the strength of all the aged clays tested showed improvement in strength characteristics than the unaged clays. Ageing affects the bulk density of local clays as the inherent porosity is replaced by fine particles that are produced as the clays are aged. Both bulk density and particle size are recognized as powerful indicators of product quality in both manufacturing and strength of the clays.","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127037419","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}
引用次数: 0
Pen culture of the black-chinned tilapia, Sarotherodon melanotheron in the Aglor Lagoon in Ghana 黑下巴罗非鱼,Sarotherodon melanotheron在加纳Aglor泻湖的钢笔培养
Journal of the Ghana Science Association Pub Date : 2010-12-14 DOI: 10.4314/JGSA.V12I2.62800
F. Anani, P. Ofori-Danson, E. Abban
{"title":"Pen culture of the black-chinned tilapia, Sarotherodon melanotheron in the Aglor Lagoon in Ghana","authors":"F. Anani, P. Ofori-Danson, E. Abban","doi":"10.4314/JGSA.V12I2.62800","DOIUrl":"https://doi.org/10.4314/JGSA.V12I2.62800","url":null,"abstract":"Pen-fish-culture as a culture-based fisheries approach was investigated in the Aglor Lagoon from December 2003 to June, 2004. The fish used in the study was the Black-chinned tilapia Sarotherodon melanotheron . The growth performance of S. melanotheron cultured for six months in the Aglor Lagoon under three different treatments were monitored. In the first treatment, the cultured fish was fed with a feed of 29.80 % protein at 3 % body weight once a day. In the second treatment, bamboo was stacked at a density of 6 per metre square in pens to serve as substrate for periphyton growth and development. In the third treatment, there was no feeding (control). There was significant difference in growth between the fed and the unfed S. melanotheron in the pens, with no significant difference in growth between the fish that subsisted on periphyton de-veloped on bamboo and the other treatments. S. melanotheron cultured in the bamboo equipped pens had the best condition factor of 3.57 ± 0.23. The experimental values of b obtained from the length-weight relationship (W = aLb) for the three treatments were 2.07, 2.13 and 2.80 for feeding, unfed and bamboo respectively. From the results, the least yield was obtained from the unfed control pen (0.045 kg/m2), whilst the highest was from the bamboo equipped pens (0.183 kg/m2).","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122473695","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}
引用次数: 6
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