Results 71 to 80 of about 61,733 (199)

海底光缆余长测试新方法可行性分析

open access: yesGuangtongxin yanjiu, 2012
光纤余长是海底光缆的重要性能指标,目前针对光纤余长的分析主要采用解析法,尚没有进一步精确分析光纤余长分布的实验方法。文章提出两种精确分析管内光纤余长分布的实验方法:高能射线法和光纤光栅法,并从理论上分析了这两种方法的可行性。
黄欢, 王瑛剑
doaj  

Calibration of the species threat abatement and restoration metric's threat abatement component in a Costa Rican landscape

open access: yesConservation Biology, EarlyView.
Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair   +17 more
wiley   +1 more source

尿液分析仪检测尿液白细胞的探讨

open access: yesZhongguo shiyan zhenduanxue, 2007
目的探讨尿液分析仪在检测尿液白细胞的临床应用价值,提高尿液检测质量。方法采用尿干化学分析仪、UF-100全自动尿沉渣分析仪和显微镜,对门诊患者随机留取的503份尿样进行检测,判断三种方法的符合程度。结果显微镜(阳性122例,占24.3%)与UF-100全自动尿沉渣分析仪(阳性154例,占30.6%)联合检出阳性尿样98例,与尿干化学分析仪(阳性149例,占29.6%)联合检出阳性尿样97例;UF-100全自动尿沉渣分析仪与尿干化学分析仪联合检出阳性尿样67例;UF ...
郑善銮   +3 more
doaj  

Harnessing social media data to track species range shifts

open access: yesConservation Biology, EarlyView.
Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury   +15 more
wiley   +1 more source

Biodiversity‐driven spatial conservation planning to delineate temporally stable regions

open access: yesConservation Biology, EarlyView.
Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella   +5 more
wiley   +1 more source

Scenarios and strategies for future‐proofing ecosystem management under climatic novelty

open access: yesConservation Biology, EarlyView.
Abstract Climate change is driving unprecedented declines in dominant, habitat‐forming foundation species across marine and terrestrial ecosystems globally. As climatic novelty becomes the norm, ecosystem reassembly will become increasingly common. Predicting and understanding these transitions, and their implications for future ecosystem functioning ...
Lauren T. Toth   +14 more
wiley   +1 more source

Drivers of bat researchers’ intent to adopt field hygiene practices

open access: yesConservation Biology, EarlyView.
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman   +6 more
wiley   +1 more source

血液红细胞谷胱甘肽转移酶检测在维持血液透析者透析充分性评估中的临床意义研究

open access: yesZhongguo shiyan zhenduanxue, 2014
目的探讨维持血液透析患者红细胞谷胱甘肽S转移酶(GST)水平及其与透析充分性及炎症因子的相关性。方法根据单位室模型尿素指数值(spKt/V)将84例长期维持血液透析的终末期患者分为血液透析充分组(spKt/V≥1.3)33例以及血液透析不充分组(spKt ...
刘扬, 战海涛
doaj  

全球变局下我国大豆产业安全研究Research on the security of soybean industry under global changes in China

open access: yesZhongguo youzhi
旨在深入把握我国大豆产业发展态势,助力国家粮食安全战略目标的稳步推进,围绕生产安全、市场安全、科技安全、生态安全4个量化维度,构建了基于13个指标的大豆产业安全指数评估模型。借助大豆产业的相关统计数据,分析了2013—2023年我国大豆产业的安全状况,并结合我国大豆产业振兴战略,从生产、市场、科技、生态4个方面给出大豆产业安全发展的建议。结果表明:2013—2023年,我国大豆产业整体安全程度呈现出阶段性波动态势,仅有4年处于基本安全区间,总体安全水平仍有较大上升空间;生产安全指数受自给率 ...
高峰1,王剑2,魏同洋2,武婕2,宋正阳2GAO Feng1, WANG Jian2, WEI Tongyang2, WU Jie2, SONG Zhengyang2
doaj   +1 more source

Spatial identification of areas suitable for other effective area‐based conservation measures in the European Union

open access: yesConservation Biology, EarlyView.
Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas   +14 more
wiley   +1 more source

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