Results 21 to 30 of about 41,814 (172)

维持性血液透析患者白介素和免疫球蛋白水平与透析导管相关性感染及预后的关联性

open access: yesZhongguo shiyan zhenduanxue, 2022
目的 分析维持性血液透析(maintenance hemodialysis,MHD)患者白介素-6(interleukin-6,IL-6)、白介素-1β(interleukin-1β,IL-1β)和免疫球蛋白IgA、IgM、IgG与透析导管相关性感染及预后的关联性。方法 经医院伦理学批准,选择医院2019年7月1日至2021年7月1日诊治的MHD患者80例。检测血清IL-6、IL-1β和免疫球蛋白A(immunoglobulin A,IgA)、免疫球蛋白M(immunoglobulin M,IgM ...
许鑫, 张世同, 孙中德
doaj  

Evolution and Phylogenetics of the Javan Hawk‐Eagle Nisaetus bartelsi (Stresemann, 1924) Using Mitochondrial Data 爪哇鹰雕 Nisaetus bartelsi (Stresemann, 1924) 基于线粒体数据的演化与系统发育研究

open access: yesIntegrative Conservation, EarlyView.
This study reconstructs the phylogeny of the Javan Hawk‐Eagle (Nisaetus bartelsi) within the subfamily Aquilinae using Maximum Likelihood and Bayesian Inference algorithms on a blood sample and GenBank data. The analysis reveals that the sampled genus Nisaetus forms a monophyletic group. Furthermore, N. bartelsi occupies a sister‐taxon of N.
Almas Lathifatul Ula   +3 more
wiley   +1 more source

真空开关选相操作特性在线检测消除电感性电流开断的操作过电压

open access: yesGaoya dianqi, 2021
真空开关开断电感性负载时,电弧重燃是产生严重操作过电压的根本原因。真空开关选相操作可以消除电弧重燃,避免严重的操作过电压。选相真空开关的机械稳定性是保证可靠选相操作的关键,对选相真空开关的机械稳定性进行在线检测,可及时发现和避免选相失效。文中提出两种选相特性在线检测方法:在选相真空开关的操动机构上设置一个和主触头动作稳定同步的辅助接点,用于触头刚分时刻的信号传感,可实现选相特性的在线检测和选相操作的自适应控制,及时发现选相特性劣化,避免选相失效;通过检测真空开关开断过程中的空间电磁波 ...
郑一鸣   +5 more
doaj  

Intangible drivers of tolerance shape human–elephant coexistence in Southwest China

open access: yesPeople and Nature, EarlyView.
Abstract Southwest China is home to a small but rapidly expanding population of Asian elephants (Elephas maximus), whose growth has intensified conflicts with people living in shared landscapes. These conflicts result in substantial economic losses and occasional human casualties. This coexistence paradox—where conservation success leads to significant
Xiaoyu Yu   +4 more
wiley   +1 more source

近视眼患者角膜屈光力与角膜表面对称性的相关性分析

open access: yesZhongguo shiyan zhenduanxue, 2005
目的探讨近视患者角膜屈光力与角膜表面对称性的相关关系。方法对近视患者眼1472只(其中男性眼715只,女性眼757只)、行PRK手术后1年的患者眼161只和行LASIK手术后1年的患者眼158只进行统计学分析,研究角膜平均屈光力(ACP)与角膜表面非对称指数(SAI)的相关关系。结果ACP与SAI在男性和女性中均存在明显的正相关关系(Pearson相关系数为分别为0·120、0·108 ...
吴荒, 周跃理, 岳志强, 宋跃
doaj  

Perceived Risks and Agency Trust Associated With Chronic Wasting Disease Over Time 慢性消耗性疾病相关感知风险与机构信任的时序变化研究

open access: yesWildlife Letters, EarlyView.
We examined changes in perceived risks associated with chronic wasting disease (CWD) and perceived trust in wildlife agencies over time across 10 studies in eight states. Results indicated that perceived risks to both deer and humans declined the longer the disease had been in a state. Results also indicated that agency trust evaluations were positive,
Jerry J. Vaske, Craig A. Miller
wiley   +1 more source

抗中性粒细胞胞浆抗体相关性血管炎患者血清C反应蛋白水平及临床意义

open access: yesLinchuang shenzangbing zazhi, 2014
目的 检测抗中性粒细胞胞浆抗体(anti-neutrophil cytoplasmic antibodies,ANCA)相关性血管炎患者血清C反应蛋白(C-reactive protein,CRP)的浓度水平,初步探讨CRP在ANCA相关性血管炎中的临床意义。方法选择ANCA相关性血管炎患者45例及对照者45例,通过免疫透射比浊法检测血清CRP浓度,利用伯明翰血管炎活动性评分2003版对所有ANCA相关性血管炎患者进行评分 ...
李毅
doaj  

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China 气候变化下中国大兴安岭漠河地区猞猁潜在适宜区的变化

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

基于旋耕玉米秸秆还田条件下土壤微生物、酶及速效养分的动态特征

open access: yesShuitu Baochi Xuebao, 2018
为研究旋耕条件下秸秆还田的腐解机理,设置不同数量秸秆还田处理,分别于玉米拔节期、抽雄期、乳熟中期、完熟期测定土壤微生物数量、土壤酶活性和速效养分含量。结果表明:(1)秸秆还田促进土壤微生物繁殖,提高土壤酶活性,增加碱解氮含量,降低速效磷和速效钾含量;秸秆量为11 250 kg/hm2时真菌、细菌、放线菌数量及蔗糖酶、纤维素酶活性增幅最大;秸秆量为7 500 kg/hm2时脲酶、磷酸酶活性和碱解氮增幅最大,速效磷、速效钾降幅最大。(2)部分土壤微生物数量与土壤酶活性之间存在相关性,播种后40天,土壤真菌 ...
闫洪奎   +6 more
doaj  

Anecdotes or Ecological Patterns: Symbiotic Foraging Behaviors in Coyotes and Badgers 奇特模式还是生态格局: 郊狼与獾的共生觅食行为

open access: yesWildlife Letters, EarlyView.
Using a 3‐year, broad‐scale camera‐trap network in western Kansas, we tested whether coyotes and American badgers exhibit spatiotemporal patterns consistent with coordinated hunting. Despite high diel activity overlap, detection‐conditioned co‐detections occurred far less frequently than expected under independence, and short‐term temporal sequencing ...
Ty J. Werdel   +3 more
wiley   +1 more source

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