Results 21 to 30 of about 1,500,514 (193)

Psychometric framework for coexistence with large carnivores

open access: yesConservation Biology, EarlyView.
Abstract Human–carnivore coexistence is essential for biodiversity conservation, yet measuring the attitudes and behaviors that support it remains methodologically challenging. We developed psychometric scales to assess willingness to coexist with carnivores and the underlying beliefs of this coexistence through an iterative expert elicitation process ...
Benjamin Ghasemi   +14 more
wiley   +1 more source

习惯性流产妇女活化的蛋白C抵抗、凝血因子V基因多态性与血栓前状态的关系研究

open access: yesZhongguo shiyan zhenduanxue, 2002
目的 研究习惯性流产妇女的凝血状态及其与活化的蛋白C抵抗、凝血因子V基因多态性的关系。方法 测定习惯性流产妇女 (未妊娠 )和正常对照的凝血酶原片段F1+2 、凝血酶 抗凝血酶复合物 (TAT)、D dimer含量、活化的蛋白C抵抗 (APC R)、狼疮样抗凝物质 (LA)、纤溶酶原 (PLg)活性 ,并用限制性内切酶片段多态性的方法检测凝血因子VG1 6 91→A、G1 0 91→C、A1 0 90→G3种基因多态性的发生情况。结果 习惯性流产妇女上述指标中 ,F1+2 、TAT水平明显增高 ,D ...
徐勇, 霍梅, 方红辉
doaj  

Modeling seed germination data to meet biodiversity conservation needs in the Mediterranean

open access: yesConservation Biology, EarlyView.
Workflow to assess the availability and quality of germination data and assign species' thermal risk in the Mediterranean. (a) Assessment of data availability, including the phylogenetic distribution of the number of records (i.e. available germination data); (b) data quality assessment; and (c) assignment of climate risk categories for species that ...
Diana María Cruz‐Tejada   +2 more
wiley   +1 more source

宫颈癌人群中NF-κB信号传导通路基因多态性的研究

open access: yesZhongguo shiyan zhenduanxue, 2013
目的探讨原发性宫颈癌人群中NF-κB信号传导通路相关基因多态性与宫颈癌发生发展的关系。方法以广西壮族自治区肿瘤医院2008年9月-2009年9月收治的宫颈癌患者与健康体检者各100名为研究对象,利用限制性片段长度多态性检测法检测研究对象该通路相关基因的基因多态性,进行对比分析。结果 NF-κB信号传导通路相关基因多态性型别在两组研究对象中出现的频率无显著性差别,P>0.05;变异等位基因出现频率与以往结果相一致。结论 NF-κB信号传导通路相关基因多态性与宫颈癌的发生发展无明确的相关关系。
宋红林, 张洁清
doaj  

生物多样性数据论文:规范化和多样化

open access: yes, 2021
2021年10月,联合国《生物多样性公约》第15次缔约方大会(COP15)将在我国昆明举办。会议将审议通过2020后全球生物多样性框架,确定2030年全球生物多样性保护目标。与之密切相关的联合国可持续发展目标(SustainableDevelopmentGoals,SDGs)、生物多样性和生态系统服务政府间科学-政策平台(IPBES)和政府间气候变化专门委员会(IPCC)评估报告等,也对当前和未来的生物多样性保护设定了短期和长期目标 ...
周玉荣, 马克平, 黄晓磊, 张健
core  

Structured decision‐making as a framework to incorporate social equity into conservation decisions

open access: yesConservation Biology, EarlyView.
Abstract Many conservation challenges require negotiating trade‐offs between the needs of different actors. Global frameworks such as the Kunming–Montreal Global Biodiversity Framework explicitly call for diverse participation and social equity in conservation decision‐making.
Emily Massingham   +2 more
wiley   +1 more source

白细胞介素1A多态性与神经胶质瘤的相关性

open access: yesZhongguo shiyan zhenduanxue, 2014
目的探讨白细胞介素1A(IL-1A)多态性与神经胶质瘤的相关性。方法采用聚合酶链反应-限制性片段长度多态性检测154例神经胶质瘤患者和195例正常对照组IL-1A多态性。结果 IL-1A+4845G/T位点:与GG基因型相比,GT/TT基因型显著增加了神经胶质瘤的发病风险(GT/TT与GG相比:χ2=5.94,P=0.015)。与G等位基因相比,T等位基因显著增加了神经胶质瘤的发病风险(χ2=5.97,P=0.015)。未发现IL-1A-889C/T多态性频率分布在对照组和神经胶质瘤组之间存在显著差异 ...
岩亮, 舒云
doaj  

调控进化与形态多样性

open access: yes, 2014
揭示导致生物体形态和结构多样性产生的原因和机制,是进化生物学研究的重要内容。进化发育生物学的研究表明,许多复杂的形态结构及其多样性,都是通过对古老调控网络的修饰或改造来完成的。也就是说,生物体形态和结构的多样化并不是像以前认为的是由基因编码区的变化造成的,而更多的是取决于基因的调控进化。作为控制基因表达的关键组分,基因调控区的顺式调控元件通过与特定反式作用因子结合,精细调控基因表达的时、空和量。因此,调控元件的获得、丢失、修饰或者改变都能引起基因表达模式的变化,是形态和结构多样性产生的主要原因 ...
张睿, 山红艳, 国春策, 孔宏智
core  

Using the capabilities approach to achieve people‐centered conservation

open access: yesConservation Biology, EarlyView.
Abstract Top‐down interventions carried out by state and nonstate institutions to conserve biodiversity and improve the lives of forest‐proximate people (FPP) in the Global South tend to reflect economistic understandings of human well‐being. More progressive and people‐centered conservation projects are guided by normative visions of how the world ...
Arthur Rodrigues   +4 more
wiley   +1 more source

儿茶酚O-甲基转移酶基因多态性分析方法探讨

open access: yesZhongguo shiyan zhenduanxue, 2012
目的建立限制性片段长度多态性(RFLP)和变性高效液相色谱(DHPLC)分析儿茶酚O-甲基转移酶(COMT)基因多态性的方法,探讨分析基因多态性与临床疾病发生风险关系的方法学。方法从子宫内膜癌患者和对照组的全血和蜡块包埋组织提取DNA,应用RFLP和DHPLC法检测COMT基因第4号外显子第158位密码子G/A的多态性,并结合DNA测序法分析两种方法的一致性。结果全血和蜡块组织提取的DNA均可扩增PCR产物,且可行酶切反应;所有全血和小部分蜡块DNA20PCR产物可行DHPLC分析 ...
赵晓苗   +5 more
doaj  

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