Results 41 to 50 of about 30,798 (166)
Study on novel modes of action of antitumor marine natural products [PDF]
課題番号 ...
木越 英夫, 木越 英夫
core
Synthesis and Its Application to the Synthesis of Biologically Active Natural Products of New and Versatile Chiral Building Blocks [PDF]
This article describes a design and synthesis of new and versatile chiral building blocks and its application to the biologically active natural product synthesis.
豊岡 尚樹
core +2 more sources
Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia
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
生物探测器对气味具备很高的选择性和敏感性,虽然犬(Canis familiaris)一直广泛应用于各个领域,但犬在特殊场合存在局限性,需要开拓生物探测器的选择视角。介绍了犬及现有其他生物探测器的研究现状,并以松鼠(Sciurus vulgaris)作为新型生物探测器需要具备的性能角度,对松鼠的嗅觉敏感性、学习认知能力(如灵活性、持久性、短期记忆能力等)、行为特点、生活习性、社会性和可训练性等方面进行分析评估。结果表明:松鼠在嗅觉敏感性、学习认知能力、行为特点、生活习性等方面的优势明显,松鼠在社会性 ...
孙宁 1 刘慧颖 2 徐澍 1 李彪 1 彭萍 1 胡庭溪 2 尹劲 3 等
doaj
Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley +1 more source
2003—2004年开展对9个有代表性的不同产量的苹果园秋季土壤的养分、微生物类群及土壤酶活性的研究,获得不同产量苹果园的土壤微生物生态状况。结果表明,各苹果园的土壤养分、微生物数量、多样性和酶活性均表现出较大差异。随土壤碱解氮、速效磷、速效钾、总碳含量的增加,产量水平呈增高趋势。高产园土壤微生物数量高,多数土壤酶活性强,微生物多样性好。土壤微生物中细菌数量、微生物多样性、蛋白酶、磷酸酶活性可作为评价果园土壤肥力的生物指标。果树产量与土壤微生物类群和数量具有显著正相关,与速效磷、速效钾 ...
陈伟, 姜中武, 胡艳丽, 束怀瑞
doaj
Network of VAMP714‐dependent interactions during salt stress. Summary Plant responses to salt stress include an altered root architecture mediated by ion imbalances, reactive oxygen species (ROS) accumulation, and altered hormonal responses. Auxin is implicated in these processes.
Jialei Sun +3 more
wiley +1 more source
封育和水平沟生态恢复措施对宁夏黄土丘陵区典型草原土壤生物学特性的影响
研究禁牧封育和水平沟生态恢复措施下黄土丘陵区典型草原土壤生物学特性变化,以期为该区草地生态建设提供依据。采用空间梯度代替时间梯度的方法,在宁夏黄土丘陵区典型草原,选取未封育(放牧)、封育3~15 a、水平沟整地后1~15 a的土壤,分析0—10,10—20,20—30,30—40 cm土壤微生物数量、微生物生物量碳、量氮和土壤酶活性的变化特征及其相关性。结果表明:(1)试验区土壤微生物类群以放线菌为主,达到86.18%~4.43%,数量表现为放线菌>细菌>真菌;土壤微生物总数、细菌和放线菌数 ...
周, 贾希洋, 周静静
doaj
Structure-activity relationship study of haterumalides by using medicinal chemistry [PDF]
科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011 課題番号:21510221research ...
早川 一郎
core
Cost of parasite exposure depends on host ontogeny 寄生接觸的代價依賴於宿主發育階段
The cost of parasite exposure varies across host developmental stages, demonstrating that ontogeny influences the expression of non‐consumptive effects (NCEs). Mite exposure resulted in consumptive effects in fly eggs and NCEs in early‐stage pupae; mite longevity was comparable when provisioned with pupae or water but increased when provisioned with ...
Lisa R. MacLeod +2 more
wiley +1 more source

