Results 71 to 80 of about 22,415 (183)

Representation of obligate groundwater‐dwelling copepod diversity in European protected areas

open access: yesConservation Biology, EarlyView.
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli   +7 more
wiley   +1 more source

The Regulating Function of Nucleoporin Sec13 in Central Nervous System and Pheriphral Nervous System Myelination [PDF]

open access: yes, 2016
核孔复合体是细胞核核孔上由核孔蛋白组成的复合体,为细胞质和细胞核之间物质运输提供通道。运输的物质包括小分子和大分子蛋白、mRNA等,而准确无误的核孔复合体组装对维持细胞生理功能必不可少。脊椎动物核孔复合体中包含Nup107-160复合体,Sec13是其组成成分。同时,Sec13还参与COPII囊泡的构成。近年来,研究发现Sec13在视网膜发育和消化系统发育中具有重要作用,另外,同为Nup107-160复合体组成成分的Nup133被证实在小鼠神经干细胞分化中具有调控作用 ...
陈嘉林
core  

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

open access: yesConservation Biology, EarlyView.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás   +4 more
wiley   +1 more source

肾素原受体参与肾脏对体液与电解质的调节素原受体参与肾脏对体液与电解质的调节

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2017
最初的研究发现肾素原受体(PRR)作为肾素与肾素原的特异性受体,参与对肾素-血管紧张素系统(RAS)活性的调节。然而,最新的证据揭示PRR功能的多样性,PRR可以发挥RAS依赖性与非依赖性的作用。PRR可以被furin或 ADAM19切割,产生两个功能性片段,一是28 ku可溶性PRR受体(sPRR),另一个是M8.9,后者是vacuolar H+-ATPase的一个亚型,负责H+转运。近些年的研究证明,PRR参与了许多的生理与病理生理过程的调节。比如,PRR通过调节集合管水通道-2(AQP2 ...
杨天新
doaj  

Nursing of a patient with postoperative pain of total knee replacement and renal insufficiency treated with Huolong cupping therapy (火龙罐治疗全膝关节置换术后疼痛伴肾功能不全1例护理体会)

open access: yes中西医结合护理
This paper summarized the clinical nursing experience of treating a patient with postoperative pain of total knee arthroplasty and renal insufficiency using Huolong cupping therapy.
LI Fei (李菲)   +2 more
doaj   +1 more source

Mechanistic Study on Selenite Absorption and Metabolism Promoted by Exogenous Nitric Oxide in Rice Seedling Roots [PDF]

open access: yes, 2015
硒(selenium,Se)作为人和动物的必需元素之一,有非常重要的生理功能。可食性植物是人和动物的主要硒源,探索植物硒累积分子机制以及寻找提高植物硒含量的策略具有重要现实意义。 一氧化氮(nitricoxide,NO)作为一种重要的生物信号分子,在动植物体内起着重要的作用。低浓度NO对植物的生长发育以及多种逆境胁迫抗性具有重要影响。已有部分研究表明硒能引起植物体内NO的变化,且NO能缓解硒诱导的水稻脂质过氧化,但目前关于NO对硒吸收代谢调控的分子机制研究尚未报道。本文以重要的粮食作物水稻 ...
李秀玲
core  

From Clueless to Confident: How ChatGPT Transforms Academic Writing in Chinese as a Second Language

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Generative artificial intelligence (GenAI) has demonstrated its potential to enhance the quality of second‐language (L2) academic writing. This study used a qualitative approach comprising analysis of ChatGPT usage‐history screenshots, written assignments, and semi‐structured interview data on students’ use of GenAI in their L2 Chinese ...
Lanfang Sun   +4 more
wiley   +1 more source

吞咽功能评估对脑卒中患者发生吸入性肺炎的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2008
【目的】 探讨吞咽功能的评估对脑卒中患者发生吸入性肺炎的影响65377;【方法】 对286例脑卒中患者随机分为实验组172例和对照组112例,实验组采用床边吞水试验评估病人的吞咽功能并根据吞咽功能评估结果采取预见性护理干预措施65377;【结果】 实验组没有发生吸入性肺炎,对照组发生吸入性肺炎4例,吸入性肺炎的发生率为3.6%,实验组吸入性肺炎的发生率明显低于对照组(P < 0.05)65377;【结论】 对脑卒中病人进行吞咽功能的评估,能及早进行护理干预,减少患者发生吸入性肺炎 ...
doaj  

全子宫切除术后病人生活质量及跟踪效果研究

open access: yesHuli yanjiu, 2008
摘要: (免费在线浏览) 近年来子宫肌瘤的发病率呈逐年上升趋势,子宫切除术是妇科临床上最常采用的一种治疗手段。由于该手术对妇女造成的创伤较大,无论在生理、心理还是生活方式等方面都带来负面影响,术后常伴有一些性功能的改变,如性欲降低、性感缺乏等性功能障碍。有研究表明,这种性功能障碍受多方面的影响,尤其心理因素,是心因性性功能障碍。子宫处于“社会-性-心理”的特殊地位,因为它对性和更广意义上的女性特征都起着表明女性身份的作用,以至于许多妇女错误地认为子宫是保持女性特征和产生性感的唯一器官。因此 ...
阅读全文:0
doaj  

残塬沟壑区不同果农复合模式对土壤理化性质及水源涵养功能的影响

open access: yesShuitu Baochi Xuebao, 2020
为研究残塬沟壑区苹果园不同果农复合模式下土壤理化性质和水源涵养功能并筛选出水源涵养功能主导因素。以陕西省马坊塬果-荒(M0)、果-草(M1)、果-蔬(M2)、果-粮(M3)4种果农复合经营模式苹果园为研究对象,对比4种果农复合模式土壤理化特征差异性,并评估果农复合模式对土壤水源涵养功能指数的影响。使用逐步回归分析和通径分析探讨影响土壤水源涵养功能的主导因素。结果表明:生草处理、果蔬间作、果农间作下果园土壤容重、孔隙度、持水能力、养分含量等理化性质优于人工除草样地。其中生草处理、果蔬间作 ...
孟凡旭   +7 more
doaj  

Home - About - Disclaimer - Privacy