Results 31 to 40 of about 32,112 (136)
Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods
Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes +3 more
wiley +1 more source
目的探讨微小残留病(MRD)监测在B急淋(B-ALL)复发预测及指导治疗中的临床意义。方法选择2008年1月到2012年7月32例初治急性B淋巴细胞白血病160份骨髓标本,利用四色多参数流式细胞术(FCM)进行微小残留病检测。以CD45/SSC设门,选择2-3组四色抗体组合,从诱导化疗第33天开始,每1-3个月监测MRD一次,动态监测MRD变化与白血病复发的关系。结果按照诱导治疗第33天的MRD水平分成三组,高(MRD>1×10-2),中(1×10-2≥MRD≥1×10-4),低(MRD10 ...
孔令环 +4 more
doaj
Using the capabilities approach to achieve people‐centered conservation
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
Genomics‐informed management of ex situ populations
Abstract The European Association of Zoos and Aquariums (EAZA) manages insurance populations for hundreds of species through its EAZA ex situ programs (EEPs). EEPs help safeguard against extinction in the wild and provide source populations for genetic rescue programs.
Cock van Oosterhout +8 more
wiley +1 more source
近年来高压输电线路复合绝缘子异常发热频繁发生,对电网安全运行产生严重影响;但目前对其深入研究不够,通常把复合绝缘子异常发热同内绝缘缺陷简单对应,从而盲目采取更换等处理措施,造成人力物力极大浪费。为此,对某500 kV输电线路复合绝缘子大面积异常发热现象进行分析,通过试验分析发现其属于护套表面异常发热,与内绝缘缺陷无直接关联。试验结果表明:随着端部场强增大,异常发热温升增大,表层污秽去除后,异常发热现象消失。提出调整均压环配置来抑制复合绝缘子表层发热,通过带电作业方式实施后 ...
黄振 +6 more
doaj
Optimizing biodiversity offsetting for habitat succession and colonization dynamics
Abstract Biodiversity offsetting aims to compensate for ecological losses from development through conservation and restoration. However, its long‐term outcomes under repeated impact–offset cycles remain uncertain. Using a conceptual forest succession model, we evaluated how offset outcomes are affected by interactions among compensation scale ...
Konstans Wells +4 more
wiley +1 more source
目的探讨微小残留病(MRD)检测在急性髓系白血病预测复发及指导治疗的临床意义。方法选择32例初治急性髓系白血病(除外M3)患者128份标本,利用多参数流式细胞术(FCM)进行微小残留病检测,CD45/SSC设门,选择2-4组四色抗体组合,从诱导化疗后第21天开始,每1-3个月监测一次。结果按照首次诱导治疗后第21天MRD水平将32例AML分为高(MRD>1×10-2)、中(1×10-2>MRD>1×10-4)、低(MRD1×10-2组2年复发率最高 ...
孔令环 +5 more
doaj
ABSTRACT Many existing rubrics for L2 argumentative writing prioritize form‐based linguistic accuracy and complexity while insufficiently addressing substantive argumentative rigor and effectiveness. This limitation is further complicated by cross‐cultural variation in rhetorical conventions and educational practices, which challenge the direct ...
Zihan Xu, Peiyun Liu
wiley +1 more source
摘 要 为了评价增殖细胞核抗原( PCN A)表达和DN A含量在研究腮腺混合瘤细胞增殖活性中的价值, 对60 例良性无复发、复发和恶性腮腺混合瘤用PCN A免疫组化染色技术和流式细胞测量术作PCNA测定和 DN A含量测量。结果显示PCNA表达在各组间和高S期细胞比率( S PF)在无复发和复发组间有显著差异;恶性 混合瘤组与良性无复发组或复发组间有显著差异; PCN A表达与高SPF呈显著性正相关关系。提示PCN A表达 和DN A含量均能反映良恶性混合瘤细胞增殖活性 ...
陈伟良 孔庆瑜 李海刚 陈光晔 任材年
doaj
Exploring English Language Learners’ Vocabulary Knowledge and Usage When Speaking
ABSTRACT Vocabulary forms a fundamental component of speaking ability, as it enables speakers to convey meaning accurately, fluently, and effectively. Although the relationship between vocabulary and speaking has been investigated to some extent, gaps remain in understanding the link between learners’ vocabulary knowledge and their speaking proficiency,
Junyan Guo, Martin East
wiley +1 more source

