Results 131 to 140 of about 22,800 (217)
In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle
Conservation Biology, EarlyView.Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Mukund R. Shukla +4 more
wiley +1 more source
[[abstract]]本研究將建立固態硼氫化鈉錠水解產氫系統，並求得Ru/Al2O3觸媒之動力學參數。為了使產氫系統之儲氫量提高，先建立系統數學模式並分析影響系統之最重要變數。系統中，利用蠕動式幫浦將進料水量注入至固態硼氫化鈉錠，並且利用多孔不鏽鋼膜片當作水的分散器。固態硼氫化鈉錠為硼氫化鈉與觸媒粉末壓製而成，直徑為1.5 cm厚度為0.2 cm。系統的設計變數與操作變數為：硼氫化鈉與觸媒比例、燃料錠的孔隙度、操作溫度與進料水量。由靈敏度分析結果得知，影響系統儲氫量最重要的變數是進料水量與操作溫度 ...
[[corresponding]]陳逸航, 陳逸航
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Strengthening community‐based fisheries monitoring programs with Indigenous perspectives
Conservation Biology, EarlyView.Abstract Community‐based monitoring (CBM) programs are increasingly recognized as essential for adaptive environmental stewardship. Yet, the CBM literature often highlights successful cases and privileges evaluations by external experts over those of community members themselves.
Kanwaljeet Dewan +2 more
wiley +1 more source
[[alternative]]Study on Aerosol-Derived High Temperature Electrically Conducting Ceramics [PDF]
計畫編號：NSC90-2214-E032-007研究期間：200108~200207研究經費：712,000[[sponsorship ...
余宣賦
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Conservation Biology, EarlyView.Abstract In the western United States, conservation practitioners are increasingly working with private landowners to restore habitat for North American beavers (Castor canadensis) and to use nonlethal mitigation techniques when beavers damage crops and infrastructure.
Brian D. Erickson, Megan S. Jones
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2013 目的建立能同时检测CD3、CD4、CD8表型及胞内因子IFN-γ、IL-4、TNF-α的多色胞内细胞因子染色流式细胞术;评价六条结核特异性多肽的性能。方法将结核患者组及健康对照组的PBMC,用结核特异性多肽或PMA刺激培养后,通过胞内细胞因子流式检测术,收集荧光标记阳性的淋巴细胞等;从而确定各亚群IFN-γ、IL-4、TNF-α阳性细胞的数量及百分率,得出两组间及各多肽间的性能差异。结果 1.各多肽均能刺激活化结核患者PB-MC产生IFN-γ等细胞因子,但百分率较低;IFN-γ及IL-4多数小于1 ...
詹能勇 +7 more
doaj
, 2016 Haber-Bosch合成氨工艺过程的开发被认为是二十世纪人类最为重要的发明之一~1。作为目前世界上产量第二大的化学品,氨的主要用途是制造化肥,并由此提供了地球上约50%人口的粮食。但目前的合成氨过程需在高温高压下进行,是一个高能耗的过程,据估算工业合成氨过程中所消耗能源约占全球能源消耗总量的2%!因而,开发能在低温低压进行的高效合成氨催化剂是降低合成氨工艺能耗的关键 ...
陈明树
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Effects of political identity activation and inaccurate metaperceptions on attitudes toward wolves
Conservation Biology, EarlyView.Abstract Polarization between groups can undermine durable conservation outcomes. Activating group identities (i.e., an individual's sense of self derived from membership in a group) can exacerbate differences, especially when people hold inaccurate perceptions of their peers and rivals.
Alexander L. Metcalf, Justin W. Angle
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2009 【目的】 探讨不同的代谢活化系统在人细胞转化模型中潜在的应用价值65377; 【方法】 在永生化人肝细胞L02中导入第12密码子突变的H-RAS癌基因(L02-R细胞),使其处于恶性转化前的易感状态65377;选择具有代表性的间接致癌物黄曲霉毒素B1 (aflatoxin B1, AFB1) 作用于永生化和转化前期细胞株,采用三种代谢系统:高表达代谢酶P450 CYP1A2,低剂量底物诱导和加入经典的大鼠S9代谢辅助系统,通过软琼脂克隆形成试验和裸鼠皮下成瘤试验来比较在不同的代谢活化系统下 ...
doaj
Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
wiley +1 more source