Results 41 to 50 of about 16,345 (164)
, 2020 Plant phenomics is under rapid development in recent years, a research field that is progressing towards integration, scalability, multi-perceptivity and high-throughput analysis.
Guohui, Ding +6 more
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Policy Studies Journal, EarlyView.ABSTRACT The social construction of target populations (SCTP) framework emphasizes the ways in which target populations' levels of political power and deservingness shape the allocation of policy benefits, but less attention has been devoted to the conditions under which the same target population may be considered deserving in one policy context but ...
Elizabeth Bell +3 more
wiley +1 more source
Actinobacterial Diversity in Depositional Environment of the Southwest India Ocean Ridge and Polyphasic Taxonomy of Five Marine Actinobacteria [PDF]
, 2015 随着各类拮抗病原菌和顽固性病原菌的出现，以及人们对抗病毒、抗肿瘤等低毒性药物需求的增加，海洋微生物活性次生代谢产物已经成为全球创新药物新的增长点。放线菌是一类重要的药用微生物资源，一百多年来，陆生放线菌资源的研究和开发利用取得了极其辉煌的成就；但受资源获取的限制，目前人们对海洋放线菌的研究还未完全展开。本论文以西南印度洋中脊沉积环境采集的海洋生物样品为基础，对其中的放线菌进行分离方法、生物学特性和系统分类学研究，并结合克隆文库方法对其中放线菌的多样性进行研究；对于发现的新分类单元菌株 ...
王爽
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Breaking Down Social Capital: Urban Families' Use of Public Benefits
Poverty &Public Policy, Volume 18, Issue 1, March 2026.ABSTRACT This article examines whether social capital facilitates or dissuades urban families from taking up safety net programs. Using longitudinal data from the Future of Families and Child Wellbeing Study, we explore how various components of social capital—operating at relational, organizational, and neighborhood levels—are related to participation
Denia Garcia
wiley +1 more source
Shuitu Baochi Xuebao, 2001 土壤养分流失是农田非点源污染的主要形式。以长江三峡库区典型小流域为研究区域 ,根据土壤养分流失规律与土壤侵蚀量预测结果 ,以及表土中养分含量 ,像元土壤侵蚀量和泥沙对养分的富集比 ,建立了可与 GIS结合的侵蚀泥沙携带养分量预测模式。运算结果显示 ,小流域有机质、氮、磷、钾流失总量分别为 5 0 9.8,47.1,14.6 ,1137.4t,平均 30 .5 ,2 .8,0 .9,6 8.1t/ km2。根据正常施肥水平及有机质累积率草拟的土壤养分流失分级标准来判断 ,三峡库区小流域养分流失量 ...
蔡崇法 丁树文 等
doaj +2 more sources
Survey Experiments in Public Policy: A Systematic Literature Review
Review of Policy Research, Volume 43, Issue 2, March 2026.ABSTRACT This systematic literature review examines population‐based survey experiments (PBSE) in public policy, analyzing 36 peer‐reviewed articles from Web of Science and Scopus databases. Based on PBSE methodological literature and the review, four main types of PBSE are distinguished: methodological, direct (based on information provision ...
Radek Kovács, Arnošt Veselý
wiley +1 more source
Effects of landscape fragmentation on floodplain fishes as revealed by species–habitat networks
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract How species interact with habitat patches is influenced primarily by habitat configuration (e.g., connectivity) and species’ functional traits. As levels of fragmentation increase, identifying the intricate connections between these components is crucial for biodiversity conservation.
Chen Zhang +8 more
wiley +1 more source
Extent of threats to marine fish from the online aquarium trade in the United States
Conservation Biology, Volume 40, Issue 1, February 2026.The global marine aquarium hobby is a multibillion‐dollar industry, largely driven by demand from the United States. Much of this trade occurs online. We web scraped 4 major US‐based e‐commerce platforms selling marine aquarium fish to determine the retail price and source (wild capture, aquaculture, or both) of 13 families of ray‐finned marine fish ...
Bing Lin +6 more
wiley +1 more source
Screening and Cloning the Heavy Metal Tolerance-associated Genes in Avicennia marina (Forsk.) under Cadmium stress by Suppression Subtractive Hybridization [PDF]
, 2015 白骨壤(Avicenniamarina)作为红树林的先锋树种，广泛分布于海岸河口的低潮带，其独特的生物学和生态学特性为探索红树植物对重金属耐受性的分子机理提供了最佳的研究对象。红树林生态系统虽然承受大量重金属污染物胁迫，但对重金属污染物却表现出很强的耐受性和抗性，其中白骨壤对重金属的耐受性较其他红树植物更为突出。本研究以红树植物白骨壤为材料，研究重金属污染物镉(Cadmium)胁迫下的白骨壤幼苗基因表达差异，寻找与重金属耐受性相关的候选基因，并为红树植物的基因组研究建立相关的基因文库 ...
张骥诚
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