Results 51 to 60 of about 34,300 (180)

Drivers of bat researchers’ intent to adopt field hygiene practices

open access: yesConservation Biology, EarlyView.
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman   +6 more
wiley   +1 more source

Spatial identification of areas suitable for other effective area‐based conservation measures in the European Union

open access: yesConservation Biology, EarlyView.
Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas   +14 more
wiley   +1 more source

壳聚糖纳米粒子基因载体的制备与相关研究

open access: yesZhongguo shiyan zhenduanxue, 2013
目的制备CS/pcDNA3.1/GDNF混悬液,并对壳聚糖作为基因载体的相关性能进行检测。方法采用复凝聚法制备CS/pcDNA3.1/GDNF混悬液,观察壳聚糖纳米粒子的物理性能,稳定性,基因结合效率,基因保护功能,缓慢释放效果及基因负载力和负载率。结果壳聚糖大小为106-228nm,性质稳定,具有良好的基因携带功能,能够有效地保护所携带基因,基因负载力及基因负载率较高。结论应用复凝聚法制得壳聚糖纳米粒子,能够满足基因载体的需要,是一个较理想的基因载体。
李世龙, 邵国喜, 刘钦毅, 周贺
doaj  

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

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

广东菲牛蛭水蛭素基因的克隆和序列测定

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2002
【目的】研究地理因素对水蛭素基因结构变异的影响。【方法】抽提广东菲牛蛭基因组DNA , 根据已发表的水蛭 素基因设计一对引物, 从基因组DNA 扩增出一特异性的大约700 bp 片段, 再回收、克隆和测序。【结果】广东菲牛蛭水蛭素 基因全长为642 bp, 基因有4 个外显子, 被三个内含子隔开。与马尼拉菲牛蛭水蛭素基因Hm1 、Hm2 的同源性分别为90 %与 和88.6 %。【结论】地理因素会影响菲牛蛭水蛭素基因结构的变异。
谭恩光, 刘秀平
doaj  

Transitioning From L1 Medium of Instruction to L2 English Medium Instruction: The Role of Translanguaging in Contributing to EFL Students’ Language Learning Motivation

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Research on English‐Medium‐Instruction (EMI) highlights inadequate support for students transitioning from L1‐medium‐instruction to EMI. To date, little research has focused on how L2 students’ adaptation to an EMI environment influences their L2 learning motivation (LLM).
Kevin W. H. Tai
wiley   +1 more source

三种肿瘤易感性相关基因在韩国人中的多态性分析

open access: yesZhongguo shiyan zhenduanxue, 2015
目的调查疾病易感性相关的髓过氧化酶(MPO)、人类8-羟基鸟嘌呤糖苷酶(hOGG1)、锰超氧化物歧化酶(MnSOD)基因多态性在韩国人群中的分布状况。方法采用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术分别分析300名韩国健康男女大学生的MPO基因启动子区-463bp位点、hOGG1基因第7外显子第1245位碱基C/G、MnSOD基因1183位点T/C的单核苷酸多态性—M-4,计算基因型和基因频率。结果 MPO基因型频率为G/G型80.3%、G/A型19.0%、A/A型0.7 ...
卢焕俊, 洪润哲, 许青松
doaj  

Artificial Intelligence for Language Learning: A Systematic Review of its Design, Theoretical Foundations, Implementation, and Impact

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Although the use of AI technologies (e.g., chatbots and automated writing evaluations (AWE)) has gained considerable attention in language learning fields in recent years, how AI technologies have been designed and implemented in language learning education, as well as their effectiveness, is understudied.
Shen Qiao   +2 more
wiley   +1 more source

瘦素受体基因Gln223Arg多态性与2型糖尿病合并慢性肾功衰竭关系

open access: yesZhongguo shiyan zhenduanxue, 2015
目的探讨瘦素受体基因Gln223Arg多态性与2型糖尿病合并慢性肾功衰竭关系。方法采用聚合酶链反应及限制性片段长度多态性方法(PCR-RFLP)分别测定126例2型糖尿病、108例2型糖尿病合并慢性肾功衰竭和185例对照组样本的瘦素受体基因Gln223Arg的基因型,同时检测各组不同基因型样本的血清瘦素水平。结果 2型糖尿病合并慢性肾功衰竭组与正常对照组瘦素受体基因Gln223Arg基因型频率及等位基因频率比较差异有显著性 ...
李莹   +7 more
doaj  

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