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城市绿地是城市鸟类的主要栖息地和生态避难所,对维持城市鸟类多样性具有重要的意义。为揭示广州城市绿地的鸟类资源现状和时空动态,于2014年10月至2015年9月,采用固定距离样线法,对广州城市7个绿地鸟类群落组成及多样性进行了逐月调查,结果如下:1)共记录鸟类15 347只,隶属14目、36科、92种。其中,国家Ⅱ级重点保护野生动物5种; 留鸟65种、冬候鸟29种、夏候鸟9种和旅鸟9种; 2)鸟类物种多样性指数海珠湖公园最高,珠江公园最低; 丰富度指数大学城湾咀头湿地公园最高,荔湾湖公园和珠江公园最低; 3)鸟类物种多样性指数和丰富度指数呈现季节性变化,春季最高,其次秋季,夏季和冬季最低。鸟类物种多样性在时空上具有明显的差异,可能表明了鸟类物种多样性与食物资源、人为干扰程度、生境特点、植被物种丰富度等密切相关。

在叙述制导光缆线包的结构及缠绕过程后,分析了光缆线包中光缆受力状况,并给出了受力计算公式。在此基础上,应用圆柱形薄壳力学理论对线轴的力学结构进行了分析,并推导出了线轴承受临界载荷与线轴壁厚的关系式。

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Traditional Chinese Drug Research & Clinical Pharmacology is the property of Traditional Chinese Drug Research & Clinical Pharmacology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective： To explore the effect and mechanism of neuropeptide Y (NPY)/Y1 receptor signaling in myocardial injury. Methods： The C57BL/6J mice model of cardiac injury was established by subcutaneous injection with isoproterenol (ISO), which was subsequently treated with the specific NPY/Y1 receptor antagonist BIBO3304 by intraperitoneal injection. C57BL/6J mice were randomly divided into 4 groups： control group (Saline), ISO group[20 mg/ (kg · d)ISO], BIBO3304 + ISO group[0.1 mg/ (kg · d) BIBO3304+20 mg/ (kg·d)ISO], and BIBO3304 group[0.1 mg/ (kg·d)BIBO3304]. All the drug was administered continuously for 14 days. The expression of NPY mRNA and protein in the heart of mice were detected by qPCR and Western blot, respectively. The change of myocardial fiber structure and myocardial fibrosis were observed by HE and Masson staining. Levels of cardiac hypertrophy related gene, atrial natriuretic peptide (ANP)and β-myosin heavy chain (β-MHC)mRNA in the heart of mice were also estimated by qPCR.[Leu31, Pro34]-NPY, a specific Y1 receptor agonist, was used to directly treat H9C2 cells in vitro. The mRNA levels of ANP and β-MHC in the cardiomyocytes were detected by qPCR, and the cell viability of H9C2 was measured by CCK-8. The expressions of active β-catenin, phospho-glycogen synthesis kinase 3β (p-GSK3β)and total glycogen synthesis kinase 3β (t-GSK3β)in the heart and H9C2 cells were analyzed by Western blot. Nuclear β- catenin accumulation was estimated by immunofluorescence staining. ICG001, a specific β-catenin inhibitor, was used to treat H9C2, and the cardiomyocyte hypertrophy and cell viability induced by[Leu31, Pro34]- NPY were further examined. Results： Compared with the control group, cardiac NPY mRNA and protein expressions were increased significantly in ISO group (P < 0.05), in which it exhibited myocardial fiber arrangement disorder, high degree of myocardial fibrosis and increased expression of cardiac hypertrophy related gene. Compared with the ISO group, the myocardial damage and fibrosis were effectively alleviated in BIBO3304+ISO group, and the expression of cardiac hypertrophy related gene were decreased (P < 0.01). Compared with the control group, [Leu31, Pro34]-NPY increased ANP and β-MHC mRNA levels, and decreased cell viability in H9C2 cardiomyocytes (P < 0.01). Compared with the control group, the protein expressions of active β- catenin and p-GSK3β/t-GSK3β were increased in the heart of mice from ISO group (P < 0.05). Compared with the ISO group, the expressions of active β-catenin and p-GSK3β were decreased in BIBO3304+ISO group (P < 0.05). Compared with the control group, [Leu31, Pro34]-NPY increased expressions of active β-catenin and p-GSK3β, as well as facilitated nuclear β-catenin accumulation in the cardiomyocytes (P < 0.05). Compared with[Leu31, Pro34]-NPY group, BIBO3304 decreased β-catenin expression in the nucleus, and ICG001 effectively alleviated cardiomyocyte hypertrophy and cell viability reduction (P < 0.01). Conclusion：NPY/Y1 receptor mediates cardiomyocyte injury and fibrosis through β-catenin pathway. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Pathophysiology is the property of Jinan University, School of Medicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Sciencepaper is the property of China Sciencepaper and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Clinical Healthcare is the property of Chinese Journal of Clinical Healthcare and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore predictive model for gestational diabetes mellitus (GDM) and develop a Risk Score to predict the risk of GDM early. Methods The medical records of 1 150 normal glucose tolerance (NGT) and GDM pregnant women in Nanjing Drum Tower Hospital from January 2015 to May 2017 were analyzed retrospectively as the training cohort, and logistic regression analysis was used to establish early predictive model for GDM and develop GDM Risk Score. Then the medical records of 490 pregnant women with NGT and GDM from June 2017 to June 2018 were analyzed as the validation cohort, and receiver operator characteristics (ROC) curve as well as Hosmer-Lemeshow test was used to verify the effectiveness of GDM Risk Score. Results (1) For the training cohort, the early prediction model of GDM consists of the GDM Risk Score during first trimester and 14 to 20 gestational weeks, including pregnant women age, height, pre-pregnancy body mass index, education background, family history of diabetes, menstrual history, history of cesarean delivery, GDM, polycystic ovary syndrome and hypertension, fasting plasma glucose (FPG) during first trimester, FPG and triglycerides during 14 to 20 gestational weeks amount to 13. (2) For the validation cohort, according to the ROC curve, the area under the curve (AUC) of the Risk Score during first trimester was 0.781 (95%CI 0.735 to 0.828), which increased to 0.850 (95%CI 0.811 to 0.889) after supplementing Risk Score during 14 to 20 gestational weeks; it was found that the model of GDM Risk Score during first trimester and 14 to 20 gestational weeks fit well through Hosmer-Lemeshow test. Conclusions The GDM Risk Score based on risk factors of GDM appears to be a reliable screening tool to detect the risk of GDM earlier. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Droplets evaporation on plant leaves plays an important role in the utilization of pesticides. Although traditional surfactants can change the evaporation mode or evaporation rate of droplets, they cannot adjust the evaporation process effectively according to external stimuli. In this research, a photo-responsive diacetylene-based cationic surfactant (PCDA-C6-NH3+) was designed and synthesized, where 10,12-pentacosadiynoic acid and protonated terminal amine were used as the photo-responsive motiey and the hydrophilic cation, respectively. The UV light-induced topochemical polymerization of PCDA-C6-NH3+ was studied by UV-Vis spectroscopy. Its surface activity and evaporation behavior before and after UV irradiation were analyzed by static surface tension and dynamic contact angle. The results showed that the aggregation state of PCDA-C6-NH3+ can be regulated by UV light during the droplets evaporation process, because of its topochemical polymerization. This work has provided a new strategy to adjust the evaporation of droplets, which is of great significance for improving the utilization rate of pesticides. [ABSTRACT FROM AUTHOR]

Copyright of Natural Gas & Oil is the property of Editorial Department of Natural Gas & Oil and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Research of Environmental Sciences is the property of Research of Environmental Sciences Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Engineering Geology / Gongcheng Dizhi Xuebao is the property of Journal of Engineering Geology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

With the development of society and economy, the demand for higher education is increasing. Several years ago, the total number of graduate students graduated each year from the university has been more than 1 500. The level of education covers doctoral, master of academic and master of engineering. The external review of postgraduate thesis is a necessary step to guarantee the quality of the thesis. This paper aims at minutely collating and clarifying the whole approval process of postgraduate thesis external reviews, thoroughly enumerating the complete list of relative data, creating the database for theses and external review experts, describing the functions and interfaces of the Web system, especially the module of the review. After completing the establishment and implementation, the Web system can be remote accessed through the Internet. Through the Web system, each of postgraduate students can submit or update his or her thesis within a specified time period. The invited external reviewer or other related persons can view it online in their own browser Web page. They can also download the full-text of the designated anonymous thesis. The name of author has been obscured in both manners. Thesis’ grading and review remark by the reviewer can be entered and completed on the Web page in some stipulated format. And the student, his or her supervisor, college or university the Web system administrator can check the results in any suitable time. [ABSTRACT FROM AUTHOR]

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Research of Environmental Sciences is the property of Research of Environmental Sciences Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Research of Environmental Sciences is the property of Research of Environmental Sciences Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Research of Environmental Sciences is the property of Research of Environmental Sciences Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Research of Environmental Sciences is the property of Research of Environmental Sciences Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)