Results 101 to 110 of about 71,844 (252)
Gongye shui chuli, 2022 在高效催化臭氧氧化煤化工废水过程中，水中的硅酸盐会使催化剂失活。本研究以ZSM-5分子筛为载体，使用等体积浸渍的方法成功制备了一系列抗硅催化剂，考察了活性组分种类、前驱体盐溶液种类、焙烧温度和活性组分负载量等相关工艺参数对催化剂抗硅性能和催化臭氧氧化降解含硅间甲酚模型废水效果的影响，并对抗硅催化剂进行了表征分析。结果表明，ZSM-5分子筛以Fe（NO3）3·9H2O作为前驱体盐浸渍，500 ℃焙烧，活性组分Fe负载量为3%（质量分数）时的抗硅催化剂呈现出优异的空间结构 ...
陈晓飞 +5 more
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Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
wiley +1 more source
Insights for conservation from the Ecological Knowledge Games project
Conservation Biology, EarlyView.Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Role of funders in embedding tests in conservation practice
Conservation Biology, EarlyView.Abstract Effective conservation practice requires decisions based on reliable and relevant evidence, but significant gaps in the evidence base exist. Incorporating well‐designed tests of the effectiveness of interventions for biodiversity in conservation projects is one of the best ways to scale up the rate of evidence generation.
Rebecca K. Smith +28 more
wiley +1 more source
トマトの胚軸培養における脱分化と再分化におよぼすオーキシン,サイトカイニンの影響 [PDF]
論文(Article)【要約】本研究の目的は，まず最初に，基本培地の種類と品種の如何がトマトの胚軸からのカルス形成と器官分化におよぼす影響を知り，つぎに，八鍬ら(1973)の報告－オーキシンとサイトカイニンがトマト幼苗の匹軸組織からのカルス形成および器官分化におよぼす影響－を確認し，第3に，同じくトマトの胚軸を用いた培養試験を行ない，カルス形成すなわち脱分化とそのカルスからの再分化の培養条件について検討することであった.培養試験の手順は脱分化のための胚軸培養と ...
今西, 茂
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Habitat and spatial trends of U.K. wintering waterbird populations over 50 years
Conservation Biology, EarlyView.Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay +8 more
wiley +1 more source
, 2008 <正>鱼腥藻(Anabaena sp.)PCC7120是由一列细胞组成的丝状固氮蓝藻,其固氮细胞——异形胞在藻丝中呈半规律分布,是原核生物细胞分化和图式形成的研究模式之一.在营养细胞分化为异形胞的过程中细胞分裂终止,光合放氧反应消失,细胞外形成防止氧气透过的包被,最后固氮酶基因表达。异形胞的分化受 hetR 和 ntcA 的控制,细胞分裂的终止受 hetC 的影响.patA,patS 和 hetN 对于异形胞图式的形成起重要作用.patA 突变株只在藻丝末端形成异形胞,
张唯, 宁德刚, 徐旭东, 王煜
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聚酰亚胺/SiO2-Al2O2杂化薄膜亚胺化反应分析及分子结构预测
四川大学学报. 自然科学版, 2010 采用溶胶-凝胶法制备聚酰亚胺/二氧化硅-氧化铝（PI/SiO2-Al2O3）杂化薄膜.运用红外光谱仪、示差扫描量热仪和紫外-可见分光光度计分别测试了亚胺化过程中各阶段杂化膜的特征基团吸收峰的变化,反应热以及紫外-可见光透过率.使用原子力显微镜分析了无机相在亚胺化各阶段的形貌变化.通过这些分析推测了杂化薄膜的分子结构.
朱兴松 +4 more
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Changes in the transformative potential of action proposals in Finnish Red Lists from 1986 to 2019
Conservation Biology, EarlyView.Abstract Red lists provide critical knowledge regarding biodiversity decline, especially in Finland, where broad assessments have been made regularly since the 1980s. They deliver information on the threat status of species and ecosystems, propose actions to guide conservation policy, and have the potential to spur transformative change.
Anni Arponen +4 more
wiley +1 more source
ANGPTL4基因在3T3-L1前脂肪细胞诱导分化过程中表达水平的变化
Zhongguo shiyan zhenduanxue, 2009 目的观察血管生成素样蛋白-4（Angiopoietin-like protein 4,ANGPTL4）基因在3T3-L1前脂肪细胞诱导分化过程中表达水平的变化,探讨ANGPTL4基因与脂肪细胞分化的关系。方法体外培养3T3-L1前脂肪细胞,在3T3-L1前脂肪细胞分化成熟过程中（0-10 d）,采用油红O染色,观察脂肪细胞分化及脂质积聚情况;采用Real-time PCR、逆转录PCR技术检测脂肪细胞分化标志基因（LEPTIN,ADIPONECTIN）和ANGPTL4 mRNA表达;采用Western ...
黄颖, 曹岩, 刘阳, 郑永晨
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