Results 31 to 40 of about 5,545 (181)
Background Antimicrobial resistance in Staphylococcus pseudintermedius (SP) and the prevalence of meticillin‐resistant SP (MRSP) is increasing in dogs worldwide. Objectives To evaluate the influence of hospital size on antimicrobial resistance of SP and whether restricted use of antimicrobials based on antibiograms could reduce the identification of ...
Keita Iyori+5 more
wiley +1 more source
2017年6月—2021年4月,基于地理信息系统在天津八仙山国家级自然保护区和天津盘山风景名胜区共布设70个红外相机监测位点,对野生勺鸡(Pucrasia macrolopha)行为谱及PAE(posture-act-environment,PAE)编码系统进行研究,共辨识并统计野生勺鸡有效照片556张,有效视频58段,包含有效独立探测首张113张。结果发现:(1)野生勺鸡的PAE编码系统由8种姿势编码、31种动作编码和8种环境编码组成,共辨识并统计出7类21种行为。(2 ...
关洪武+9 more
core +1 more source
以二甲基氯硅烷和γ-氯丙烯为原料,经硅氢加成、水解缩合两步反应得到双官能团有机硅烷单体1,3-双(γ-氯丙基)-1,1,3,3-四甲基二硅氧烷,总产率为81. 0%.对第1步硅氢加成反应进行了条件优化,确定最佳条件为:反应时间5 h,催化剂用量2×10-5 g• mL-1,反应物配比1 : 1,此时产率可达83. 8%;第2步水解缩合反应产率为96. 7%.采用红外光谱、核磁共振、气相色谱-质谱联用等检测方法对产物进行了结构鉴定.
HUANGYunhe(黄允河)+4 more
doaj +1 more source
Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi+7 more
wiley +1 more source
对行为的定义和描述是定量开展行为学研究的前提与基础。通过对人工饲养环境下长江江豚行为的观察、记录和分析,定义和描述了长江江豚近40种行为。在此基础上,初步构建了人工饲养环境下长江江豚行为学研究所必需的行为谱,由活跃的水面行为、玩耍、索食、社群行为、性行为、休息、摩擦、杂类八个类别组成 ...
肖建强,王丁
core
Environmental niche models improve species identification in DNA barcoding
Abstract Recent advances in DNA barcoding have immeasurably advanced global biodiversity research in the last two decades. However, inherent limitations in barcode sequences, such as hybridization, introgression or incomplete lineage sorting can lead to misidentifications when relying solely on barcode sequences.
Cai‐qing Yang+6 more
wiley +1 more source
Study on activity rhythms and behavior time budgets of wild Red muntjac (Muntiacus vaginalis) in Fujian Wuyi Mountain National Nature Reserve using infrared camera trap [PDF]
自2016年1月1日~12月19日在福建武夷山国家级自然保护区采用红外相机陷阱技术对赤麂进行监测,所有红外相机累计达到7985个有效工作日,共获得赤麂的独立有效照片为757张(组),鉴定出844只(次)个体,对其性别、行为类型、活动时间等信息进行记录和汇总,分析赤麂的活动节律和行为时间分配,并初步探究幼麂的行为,研究结果如下: 赤麂属于以晨昏活动为主的昼行性动物,活动高峰呈双峰型,在早上6:00~8:00和傍晚18:00~19:00出现;不同季节、不同性别的赤麂日活动强度模式相似,利用Mann ...
王海婴
core
Abstract This study offers a comprehensive overview of the literature on policy advisory systems (PAS), motivated by its significance, growing interest in the field among policy scholars, and the substantial body of recent research published recently. The study conducted a quantitative bibliometric analysis of 62 articles on PAS published between 1993 ...
Fiaz Hussain, Denise Tsang, Zain Rafique
wiley +1 more source
Economic Analysis of Legal Mechanism Design [PDF]
行为是法学与经济学研究中的核心概念。之于法律,行为是法律事实的一种,可引起相应的法律效果。作为行为规范之法律,其中心功能便是指引、型塑人类行为,而之所以需要确定一定之行为标准,其目的便在于协调个人间之行为以促成合作,维护社会基本秩序,促进社会发展。法律依赖于行为模式就像杠杆依赖于支点。法律杠杆找不到行为这一支点便会形同具文,而找错支点则会事倍功半;同样,经济学则主要研究人们面对选择时如何行为,并通过行为之外部性的内化机制来引导人的行为。在经济学的语境下 ...
姜孝贤
core
耕地资源具有社会财产和自然资源的双重属性,耕地政策应基于对耕地资源价值的全方位评估。耕地占用税作用于土地流转环节,无法真实反映耕地的综合价值,即便通过扩大征税范围、提高税率等税制微调,依然无法实现优化土地资源利用、保护农用耕地的政策功能。无论是基于域外经验还是国内税制结构改革需要,都有必要将耕地纳入资源税的征税范围,在土地的保有环节征收耕地资源税,使得由耕地带来的税收表现出持续性,在\"土地财政\"背景下有效弱化地方政府的财政\"开源\"冲动,更为全面地呈现耕地的资源价值,提高耕地占用成本 ...
褚睿刚
core