Results 41 to 50 of about 69,953 (168)

Evaluating past and future contributions of conservation programs to species recovery

open access: yesConservation Biology, EarlyView.
Abstract Impact evaluation of conservation actions is a crucial step in global efforts to curb the biodiversity crisis. Through robust impact evaluation, practitioners can assess the effectiveness of conservation strategies and optimize the use of limited resources.
Rebeca E. Young   +10 more
wiley   +1 more source

海岸带水体中莠去津在线快速检测传感器系统研制 [PDF]

open access: yes, 2015
采用分子印迹固相萃取,实现对海水中莠去津的高效分离富集,消除海水基体效应,以低检出限分子印迹聚合物膜离子选择性电极为传感器敏感元件,实现对莠去津的高灵敏电位检测,结合在线过滤等流动分析自动化处理 技术提高传感器体系分析效率,开发出了一类能够在线快速检测海水中莠去津浓度的新型电位型传感器系统。所开发的检测系统对莠去津检测的线性范围在5×10-10 ~4×10-9 mol L-1 ,检出限可达9×10-11 mol L-1 ...
梁荣宁 高奇 尹坦姬 秦伟   +1 more
core  

Automating the analysis of public saliency and attitudes toward biodiversity from digital media

open access: yesConservation Biology, EarlyView.
Abstract Measuring public attitudes toward wildlife provides crucial insights into human relationships with nature and helps monitor progress toward Global Biodiversity Framework targets. Yet, conducting such assessments at a global scale presents challenges.
Noah Giebink   +8 more
wiley   +1 more source

The Application of Recombinant Bacteriophages in Pathogenic Bacteria Detection [PDF]

open access: yes, 2015
致病菌的快速、灵敏、特异性检测对食品质量监管、公共安全、环境卫生监测、细菌致病机理研究、疾病的诊断与治疗等具有重要意义。依靠各种生化反应的传统致病菌检测方法不仅操作复杂、检测周期长,且无法用于检测难培养的致病菌;而以抗原—抗体识别为基础的检测方法需要使用价格昂贵并难以获取的特异性抗体,限制了该方法的适用性。噬菌体是一类以细菌为宿主的病毒,广泛存在于自然界中,种类繁多,能够快速繁殖,对宿主菌具有良好的专一识别性。噬菌体基因组简单且易于改造,目前 ...
栾天
core  

Harnessing social media data to track species range shifts

open access: yesConservation Biology, EarlyView.
Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury   +15 more
wiley   +1 more source

Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia

open access: yesConservation Biology, EarlyView.
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies   +4 more
wiley   +1 more source

Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery

open access: yesConservation Biology, EarlyView.
Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar   +17 more
wiley   +1 more source

Research on Fast Defect Inversion Method of Eddy Current Testing [PDF]

open access: yes, 2016
缺陷反演是在成功探伤基础上,对涡流信号进行分析,进一步推断导体中缺陷类型、具体形状,或媒质参数。缺陷反演是电磁检测中较正问题更为复杂的反问题,是涡流检测非常重要的一个方面。反演理论和技术在无损检测、医疗诊断、地球物理勘探、军事上隐身和反隐身等领域都有着重要的应用。涡流检测反问题的求解至今仍然缺少成熟的理论体系和快速可靠的算法,因此对缺陷反演技术的研究具有极其重要的意义。 对涡流检测关于缺陷反演的相关仿真可以指导缺陷反演技术的研究。相对于实验研究,仿真研究成本更低,也更加灵活 ...
刘超
core  

Profiling Metacognitive Knowledge and Growth Mindset in EFL Vocabulary Learning

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Guided by the self‐regulated learning (SRL) framework, the present study investigates the associations between metacognitive knowledge and growth mindset in EFL (English as a Foreign Language) vocabulary learning, addressing a critical gap in the literature. While metacognitive knowledge, comprising person, task, and strategy dimensions, plays
Weili (Allen) Xing, Mark Feng Teng
wiley   +1 more source

Investigation of plasmon Refractive Index Sensor based on Photonic Crystal Slab [PDF]

open access: yes, 2016
摘要 进入新世纪以来,光电子领域日益向高精端,小体积,纳米微纳米方向发展,表面等离激元共振技术恰好契合了这一特点,在化学,生物化学,生物医学等领域引起了研究者的广泛关注,尤其是对医学上的生物分子无需标记实时监测以及食物污染和毒品检测中小分子物质检测,提出了新的挑战,因此,研究一种高性能高灵敏的等离激元共振传感器越来越成为大家的共识。所以,本论文基于理论研究的基础上,运用COMSOL进行了表面等离激元共振传感器(SurfacePlasmonResonance,SPR)模型的模拟仿真 ...
李卫
core  

Home - About - Disclaimer - Privacy