Results 31 to 40 of about 7,279 (159)
基于特征性脂肪酸和甘油三酯指标的油茶籽油掺伪 定性鉴别模型对比分析
Zhongguo youzhi, 2023 为解决油茶籽油掺伪其他植物油的定性鉴别问题，在油茶籽油中分别掺入大豆油、花生油、葵花籽油、棉籽油、葡萄籽油、菜籽油、棕榈油和米糠油，设置高和低两种不同掺伪梯度，基于14个特征性脂肪酸和甘油三酯指标，运用Python语言构建并对比分析了二分类决策树模型、多分类决策树模型和多层感知机人工神经网络(MLP-ANN)模型用于油茶籽油掺伪定性鉴别的效果。结果表明：高和低掺伪梯度下，二分类决策树模型对油茶籽油掺伪其他植物油的定性鉴别的准确率均达到0.95以上；多分类决策树模型的精确率和准确率在高掺伪梯度下均达到了0.
孙婷婷1,2，刘剑波3，任佳丽1,2，钟海雁1,2，周波1,2SUN Tingting1,2, LIU Jianbo3, REN Jiali1,2, ZHONG Haiyan1,2, ZHOU Bo1,2
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Sexuality, Gender &Policy, Volume 8, Issue 4, November 2025.ABSTRACT Gender inequality in South Asia remains a critical challenge to economic development and social justice, reinforced by systemic disparities that restrict women's access to resources, economic participation, and overall well‐being. This study examines the missing women phenomenon, conceptualized by Amartya Sen, through a feminist policy lens to
Soma Dhar, Bablu Kumar Dhar, Neha Goyal
wiley +1 more source
Risk, Hazards &Crisis in Public Policy, Volume 16, Issue 3, September 2025.Abstract The current body of multidisciplinary literature on crisis management still has some unresolved problems. This paper focuses on the following four “controversial issues” in dealing with crises: the usefulness of emergency plans; early signal detection; decision‐making amid high uncertainty; and the centralization/decentralization dilemma.
Giliberto Capano, Federico Toth
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Preliminary study on population genetic diversity of the little egret (Egretta garzetta) with microsatellite loci [PDF]
, 2012 白鹭（Egrettagarzetta）是在全球分布广泛的湿地鸟类，曾被列入《濒危野生动植物种国际贸易公约》名单附录III（2003）。为对其遗传多样性等种群遗传学特征进行研究，本研究筛选获得用于白鹭种群遗传学研究的12个多态性微卫星位点，建立了白鹭羽毛的微卫星分型技术体系。在此基础之上，本文初步研究了中国沿海三个白鹭繁殖种群（广西防城港的巫头村、福建厦门猫屿、浙江舟山馒头山）2010年的种群遗传多样性和遗传结构。 微卫星筛选主要利用跨种扩增的方法，从黄嘴白鹭和棕颈鹭的已知位点中选择高多态性的位点进行扩增，
管昊
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Applications of Laparoscopic Techniques in Wildlife 腹腔镜技术在野生动物中的应用
Wildlife Letters, Volume 3, Issue 3, Page 124-137, September 2025.In wildlife conservation, we have compiled the applications of laparoscopy, summarized into four areas. First, laparoscopy provides a reliable protocol for sex identification in wild species lacking apparent sexual dimorphism. Second, reproductive management with the involvement of laparoscopy is instrumental in maintaining and restoring species ...
Jiachen Li +4 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】探讨碘化丙锭（PI）和6-羧基荧光素二乙酸酯（6-cFDA）鉴别死、活结核分枝杆菌的性能，为应用流式细胞术定量检测与分析结核分枝杆菌药物敏感性和异质性耐药方法的创建提供基础性实验依据。【方法】应用PI和6-cFDA分别对10株1麦氏浊度结核分枝杆菌纯培养活菌悬液和其相应的1麦氏浊度85℃加热30min的死菌悬液进行染色，应用流式细胞术检测其平均荧光强度（MFI），依据受试者工作特征曲线（ROC）确定区分死菌与活菌的MFI界值，然后对另外10株活菌悬液和10株死菌悬液进行相同实验 ...
王伟亮 +7 more
doaj
Veterinary Dermatology, Volume 36, Issue 4, Page 474-484, August 2025.Background – Sporotrichosis is a chronic, mycotic infection caused by fungi of the genus Sporothrix. Zoonotic sporotrichosis occurs mainly through S. brasiliensis transmission, resulting from the organism's traumatic introduction via scratches or bites, or contact with exudate from contaminated cats.
Steffanie Amadei +6 more
wiley +1 more source
Policy &Internet, Volume 17, Issue 2, June 2025.Abstract The spread of false and misleading information in digital communication spaces has enormous potential for harm in democratic societies, but has so far been insufficiently addressed by policy makers. This problem has been exacerbated by recent technological developments such as deepfakes.
Olivia Hägle +3 more
wiley +1 more source
Advances of Loop-Mediated Isothermal Amplification [PDF]
, 2012 环介导等温扩增(lOOP-MEdIATEd ISOTHErMAl AMPlIfICATIOn,lAMP)是一种新式核酸扩增技术,它依靠一种具有链置换活性的dnA聚合酶和2对特殊设计的引物,不需要反复的温度循环和昂贵的仪器设备,在等温条件下即可高效快速地完成扩增反应,目前已广泛应用于细菌、病毒、寄生虫等病原体的检测,及动物胚胎性别的鉴定。该文总结了lAMP技术的基本原理、相对于传统核酸检测技术的优点、产物的检测方法及其临床应用,最后指出lAMP目前存在的不足以及采取的相应措施,并对其发展前景进行了展望 ...
郁昂, 黄火清
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