European Journal of Biological Research最新文献

筛选
英文 中文
Determination of concentration of the pseudomycelles from fermentation broth via spectroscopy and Neubauer chamber 用光谱法和纽鲍尔室法测定发酵液中假菌的浓度
European Journal of Biological Research Pub Date : 2020-08-16 DOI: 10.5281/ZENODO.3987017
A. S. Bertan, M. Cremasco
{"title":"Determination of concentration of the pseudomycelles from fermentation broth via spectroscopy and Neubauer chamber","authors":"A. S. Bertan, M. Cremasco","doi":"10.5281/ZENODO.3987017","DOIUrl":"https://doi.org/10.5281/ZENODO.3987017","url":null,"abstract":"The present work presents an alternative technique to obtain the concentration of pseudomycelles as number of pseudomycelles/sample volume, obtained by Neubauer chamber, as function of absorbance from spectroscopy. Samples of broth from fermentation via bacteria Streptomyces tsukubaensis were analyzed, making it possible to obtain a linear relationship between the number of pseudomycelles/ sample volume and absorbance, with determination coefficient of 0.995. In addition, a morphological analysis of the unfermented pseudomycelles was performed using scanning electron microscopy (SEM) at the magnifications of 20, 2000, 5000, 10000 and 20000 x. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3987017","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87943085","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
High level dietary inclusion of monosodium glutamate lowers daily sperm production and efficiency in cocks 高水平的谷氨酸钠会降低公鸡的每日精子产量和效率
European Journal of Biological Research Pub Date : 2020-08-01 DOI: 10.5281/ZENODO.3969026
O. J. Olarotimi, O. Adu, Abosede Oluwakemi Olarotimi
{"title":"High level dietary inclusion of monosodium glutamate lowers daily sperm production and efficiency in cocks","authors":"O. J. Olarotimi, O. Adu, Abosede Oluwakemi Olarotimi","doi":"10.5281/ZENODO.3969026","DOIUrl":"https://doi.org/10.5281/ZENODO.3969026","url":null,"abstract":"In a 16-week feeding trial, an investigation was carried out with 240 sexually matured cocks of twenty 24 weeks of age to assess the daily sperm production (DSP) and sperm production efficiency (SPE) of cocks fed dietary monosodium glutamate (MSG) at varied inclusion levels (0.00, 0.25, 0.50, 0.75, 1.00 and 1.25 g/kg diet designated diets A, B, C, D, E and F, respectively). The cocks were weighed (1888.33 ± 44.10 kg) and allotted to the 6 treatment diets. Each treatment was replicated 5 times with 8 cocks/ replicate in a completely randomized design. At the end of the feeding trial, 2 cocks per replicate (i.e. 4 cocks per treatment) were humanely sacrificed and their reproductive tracts dissected. The testes were carefully sampled, weighed and processed for estimation of DSP and SPE using both histological and homogenate methods of analyses. Results showed that the inclusion of MSG at 1.25 g/kg significantly reduced the DSP under the two estimation methods (P<0.05). The SPE was equally significantly lowered at 0.75 g MSG/kg diet and above when determined using the homogenate method. It was also observed that MSG at 1.00 g/kg diet and above lowered the DSP and SPE when determined histometrically. A high positive correlation was established between the DSP and the testicular volume of the cocks. However, the paired testicular sperm reserves were not significantly influenced (P≥0.05). Sperm reserves in both testicles of the cocks fed diets B and C were similar to the control. This study therefore, suggests that MSG has a potential to significantly reduce the reproductive potentials of cocks when administered in excess of 0.75 g/kg diet. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3969026","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85188556","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
Immunomodulation: a broad perspective for patients’ survival of COVID-19 infection 免疫调节:COVID-19感染患者生存的广阔视角
European Journal of Biological Research Pub Date : 2020-07-22 DOI: 10.5281/ZENODO.3956771
C. F. Adeboboye, B. Oladejo, T. Adebolu
{"title":"Immunomodulation: a broad perspective for patients’ survival of COVID-19 infection","authors":"C. F. Adeboboye, B. Oladejo, T. Adebolu","doi":"10.5281/ZENODO.3956771","DOIUrl":"https://doi.org/10.5281/ZENODO.3956771","url":null,"abstract":"The pathogenesis of the SARS-CoV-2 virus is yet to be well understood. However, patients with the virus show clinical manifestations which are very similar to those of SARS-CoV and MERS-CoV. This and other scientific findings reveal that acute respiratory distress syndrome (ARDS) is the main cause of death in most COVID-19 patients. A vital mechanism for the development of the ARDS is cytokine storm which arises from an aggressive uncontrolled systemic inflammatory response that results from the release of large numbers of pro-inflammatory cytokines. This review seeks to draw the attention of the scientific community to the possibilities of improving the clinical outcome of COVID-19 patients based on the knowledge of altering the development of this hyper-inflammatory process by suggesting drugs that targets the implicated immune cells, receptors, cytokines and inflammatory pathways without having generalized effect on the entire immune system. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3956771","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85745861","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
Jamun seed and orange peel extracts protects effects of microcystin LR on serum calcium and phosphate of rats 蚕豆籽和橙皮提取物对微囊藻毒素LR对大鼠血清钙、磷酸盐的影响具有保护作用
European Journal of Biological Research Pub Date : 2020-07-11 DOI: 10.5281/ZENODO.3940650
B. D. Srivastava, M. Srivastava, S. Srivastav, M. Urata, N. Suzuki, A. Srivastav
{"title":"Jamun seed and orange peel extracts protects effects of microcystin LR on serum calcium and phosphate of rats","authors":"B. D. Srivastava, M. Srivastava, S. Srivastav, M. Urata, N. Suzuki, A. Srivastav","doi":"10.5281/ZENODO.3940650","DOIUrl":"https://doi.org/10.5281/ZENODO.3940650","url":null,"abstract":"Wistar rats were treated as Group A: Control; Group B: microcystin LR (MCLR); Group C: microcystin LR and jamun seed extract (MCLR+JSE); Group D: microcystin LR and orange peel extract (MCLR+OPE); Group E: orange peel extract (OPE); Group F: jamun seed extract (JSE). MCLR dose was 10 µg/kg body wt/day whereas OPE and JSE dose was 200 mg/kg body wt/day. Serum calcium and phosphate were analyzed on 15 and 30 day. Serum calcium of rat exposed  for 15 day to MCLR; MCLR+JSE and MCLR+OPE decreased. Although there is little increase in levels of group C and group D  but treatment with OPE and JSE is not able to completely restore decreased calcium levels caused by MCLR. After 30 day calcium decreased after MCLR; MCLR+JSE and MCLR+OPE treatment. Levels in group E and F remain unaltered. Levels in group C and D exhibit elevation as compared to group B which indicates that treatment with OPE and JSE recovered calcium. Serum phosphate decreased after 15 day in MCLR; MCLR+JSE and MCLR+OPE  treated rats. Phosphate levels of group C (compared with group F) and group D (compared with group E) show decrease. After 30 day exposure to MCLR; MCLR+JSE and MCLR+OPE phosphate levels decreased. Levels of group C and D when compared with group B are increased. Phosphate levels of group C (compared with group F) and D (compared with group E) are decreased. This indicates that OPE and JSE treatment provoked some recovery of phosphate levels. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3940650","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90522192","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
Cladistics analysis of Calycanthaceae on the basis of morphological and anatomical characters 基于形态解剖特征的萼花科植物枝系分析
European Journal of Biological Research Pub Date : 2020-06-26 DOI: 10.5281/ZENODO.3908965
N. Paudel, Kweon Heo
{"title":"Cladistics analysis of Calycanthaceae on the basis of morphological and anatomical characters","authors":"N. Paudel, Kweon Heo","doi":"10.5281/ZENODO.3908965","DOIUrl":"https://doi.org/10.5281/ZENODO.3908965","url":null,"abstract":"Cladistics analysis was carried out to find the correct phylogenetic relationship of the four genera of Calycanthaceae. Morphological and anatomical information from all aspect of the data were considered for the analysis. Siparuna guianensis (Siparunaceae) and Cinnamomum malabatrum (Lauraceae) were considered as out-group. Characters were selected mainly for reasonable argument of the similarity. Character-state transformation and discrimination of the genera were decided based upon the out-group comparison method. PAUP* (ver. 4.0) program was used for the dataset analysis and to make phylogenetic tree. The genera split into two separate genera Idiospermum + Chimonanthus and Sinocalycanthus + Calycanthus. Chimonanthus + Idiospermum are supported strict consensus tree with f-value calculation. Furthermore, Sinocalycanthus and Calycanthus are separated genera. Therefore, Calycanthaceae be redefined wide circumscriptions of the characters. The detailed investigation of the cladistics analysis revealed that the Sinocalycanthus and Calycanthus are the sole genus. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3908965 \u0000Keywords: Calycanthaceae, Characters and characters state, Cladistics, Out-group, Phylogeny","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85018944","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
Povidone-iodine in wound healing and prevention of wound infections 聚维酮碘在伤口愈合和预防伤口感染中的作用
European Journal of Biological Research Pub Date : 2020-06-06 DOI: 10.5281/ZENODO.3958220
Maksym K. Gmur, T. Karpiński
{"title":"Povidone-iodine in wound healing and prevention of wound infections","authors":"Maksym K. Gmur, T. Karpiński","doi":"10.5281/ZENODO.3958220","DOIUrl":"https://doi.org/10.5281/ZENODO.3958220","url":null,"abstract":"The wound infections caused by bacteria and fungi are a significant problem in healthcare. Therefore, an effective treatment and prevention seems to be essential. Povidone-iodine is one of the commercial antimicrobial agents used for skin disinfection, in surgery and for local anti-infective treatment. The broad activity spectrum of this compound includes numerous species of Gram-positive and Gram-negative bacteria, mycobacteria, fungi, protozoa and viruses. Povidone-iodine is recommended for acute wounds as well as lacerations, bruises and deep wounds due to its good tissue penetration. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3958220","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79482008","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: 3
Polyhexanide (PHMB) – properties and applications in medicine 聚己胺(PHMB)的性质及其在医学上的应用
European Journal of Biological Research Pub Date : 2020-06-06 DOI: 10.5281/ZENODO.3956819
Patrycja Szkołuda, T. Karpiński
{"title":"Polyhexanide (PHMB) – properties and applications in medicine","authors":"Patrycja Szkołuda, T. Karpiński","doi":"10.5281/ZENODO.3956819","DOIUrl":"https://doi.org/10.5281/ZENODO.3956819","url":null,"abstract":"Polyhexamethylene biguanide (PHMB) is one of the many antiseptics available in the medicine. It stands out from the others with its numerous advantages. It has a low toxicity factor, chemical stability, and bactericidal effect on most microorganisms. PHMB is used in many areas of medicine, veterinary medicine, gastronomy, and industry. The application of polyhexanide in the treatment of chronic wounds allows for fast regeneration and reduced time of wound treatment and hospitalization. According to the Recommendations of the Polish Wound Treatment Society, PHMB is recommended in treatment of critically colonized wounds, wounds at risk infection, burns, and decontamination of acute and chronic wounds, and as second choice in infected wounds. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3956819","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76475443","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
Assessment of In-vivo Anti-diabetic and Anti-diarrheal Effects of Flemingia stricta Roxb. Leaf. Flemingia stricta Roxb体内抗糖尿病和抗腹泻作用的评价。叶子。
European Journal of Biological Research Pub Date : 2020-05-22 DOI: 10.31219/osf.io/cveay
Md. Shahrear Biozid, M. Alam, Md. Jainul Abeden, M. Faruk, A. I. Chowdhury, Muzahidul Islam Sajib, M. Rahman, M. R. Islam
{"title":"Assessment of In-vivo Anti-diabetic and Anti-diarrheal Effects of Flemingia stricta Roxb. Leaf.","authors":"Md. Shahrear Biozid, M. Alam, Md. Jainul Abeden, M. Faruk, A. I. Chowdhury, Muzahidul Islam Sajib, M. Rahman, M. R. Islam","doi":"10.31219/osf.io/cveay","DOIUrl":"https://doi.org/10.31219/osf.io/cveay","url":null,"abstract":"The objective of this study was to evaluate the anti-diabetic and anti-diarrheal activity of methanol extract of Flemingia stricta Roxb. (Fabaceae) leaf. In anti-diabetic study, the extract was administered to alloxan-induce diabetic mice at two concentrations (200 mg/kg and 400 mg/kg body weight) for acute (12 hours) and prolong treatments (15 days) and blood glucose levels of diabetic mice were monitored at intervals of hours and days throughout the duration of treatment. Antidiarrheal test was conducted by castor oil induced diarrhea and enteropooling as well as intestinal motility in mice at three different concentration (100 mg/kg, 200 mg/kg and 400 mg/kg body weight). Treatment of alloxan induce diabetic mice with the extract caused a significant reduction in fasting blood glucose level of the diabetic mice both in acute (12 hours) and prolong treatment (15 days) and it was determined that the F. stricta methanol extract at both concentration (200 mg/kg and 400 mg/kg) showed the significant (P<0.05) hypoglycemic effect in comparison to the standard drug metformin. In the case of castor oil induced diarrheal test, enteropooling test and gastrointestinal motility test, the extract of F. stricta  at 100 mg/kg, 200 mg/kg and 400 mg/kg has given significant effect (P<0.05) compared to the standard drug loperamide. But 400 mg/kg demonstrated the highest activity amongst the three doses. These results suggested that the methanol extract of F. stricta Roxb. possess promising anti-diabetic effect on alloxan-induced mice and significant antidiarrheal effect on castor oil induced diarrheal mice. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3839749","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90677236","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
Peppermint (Mentha piperita L.) essential oil as a potent anti-inflammatory, wound healing and anti-nociceptive drug 薄荷(Mentha piperita L.)精油作为一种有效的抗炎,伤口愈合和抗伤害药物
European Journal of Biological Research Pub Date : 2020-05-16 DOI: 10.5281/ZENODO.3831042
Sarah Kehili, M. Boukhatem, A. Belkadi, M. Ferhat, W. Setzer
{"title":"Peppermint (Mentha piperita L.) essential oil as a potent anti-inflammatory, wound healing and anti-nociceptive drug","authors":"Sarah Kehili, M. Boukhatem, A. Belkadi, M. Ferhat, W. Setzer","doi":"10.5281/ZENODO.3831042","DOIUrl":"https://doi.org/10.5281/ZENODO.3831042","url":null,"abstract":"The present investigation was designed to study the chemical composition of Algerian peppermint essential oil (PEO) as well as the in vitro and in vivo anti-inflammatory, wound-healing and anti-nociceptive properties. Twenty-three compounds were identified in the PEO with the main chemical component as menthol (53.29%). Also, PEO showed a high content of oxygenated monoterpene compounds (92.75%). Topical application of PEO at doses of 200 and 20 µL/kg significantly reduced the acute ear edema in 38.09% and 36.50, respectively. Histological observation confirmed that PEO inhibited the skin inflammatory response. In-vivo wound healing activity of the cream prepared from PEO (0.5% w/w) was assessed by circular excision wound model followed by histological examination. The topical administration of PEO cream showed a significant decrease of unhealed wound area rate between the 6th (1.67±0.14 mm2) and the 9th (0.49±0.22 mm2) days of treatment when compared with the vehicle (2.32±0.77 mm2; p<0.05) and Madecassol® 0.1% creams (2.23±0.35 mm2; p<0.05). The PEO reduced nociceptive behavior at all doses tested in the acetic acid-induced nociception test (p<0.05). These findings support the anti-inflammatory, wound-healing and analgesic properties of PEO. We suggest that PEO is a promising candidate for use in skin care products with anti-inflammatory and wound-healing properties. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3831042","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90791962","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: 10
Screening of yeasts obtained from different fermented foods for their ability to produce pectinase 筛选从不同发酵食品中获得的酵母菌产生果胶酶的能力
European Journal of Biological Research Pub Date : 2020-05-15 DOI: 10.5281/ZENODO.3828648
F. Afolabi, Yusuf O. Shitta
{"title":"Screening of yeasts obtained from different fermented foods for their ability to produce pectinase","authors":"F. Afolabi, Yusuf O. Shitta","doi":"10.5281/ZENODO.3828648","DOIUrl":"https://doi.org/10.5281/ZENODO.3828648","url":null,"abstract":"In the present study, Citrus pectin was used for the production of pectinase enzyme by yeast isolates using submerged fermentation. Fifty yeasts were isolated from different fermented foods and screened for their producing ability. Candida sp. OG2 and Candida tropicalis strain AUMC 10275 were the yeast isolates with the best potential of pectinase production. Fermentation parameters such as incubation period, pH, temperature, carbon and nitrogen source were optimized under submerged fermentation. The optimal conditions for pectinase production were found to be incubation time 48 hours, pH 6.0 and temperature 40°C. Citrus pectin best induced the production of pectinase while yeast extract/peptone (1:1) was the best source of nitrogen. Pectinase produced by Candida tropicalis strain AUMC 10275 was purified at 4.00 folds with a specific activity of 63.99 U/ml. The yeasts obtained from fermented foods have the ability to produce pectinase enzyme under optimized conditions and can be used for industrial purposes. \u0000DOI: http://dx.doi.org/10.5281/zenodo.3828648","PeriodicalId":11771,"journal":{"name":"European Journal of Biological Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77135569","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: 3
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信