Results 31 to 40 of about 754,951 (169)

护士工作压力、自我效能与主观幸福感关系的研究

open access: yesHuli yanjiu, 2008
摘要: (免费在线浏览)主观幸福感主要是指个体依据自己设定的标准对其生活质量所作的整体评价[1]。护士是一个高压力、高风险,构成性别比较单一的群体,是职业病和亚健康的典型人群,持续高水平压力使机体内用以适应和调节压力的能量和精力耗尽,造成机体平衡失调,导致心身疾病[2],影响其主观幸福感。而自我效能是指个体对自己能否在一定水平上完成某一活动所具有的能力判断、信念或主体自我把握与感受[3]。有研究表明,自我效能感是压力源与职业紧张的重要调节变量[4],而且自尊和一般自我效能感越强,主观幸福感就越高 ...
李玲, 沈翠珍, 沈勤
doaj  

Assessing the Effect of Deservingness Cues on Tolerance for Administrative Burdens

open access: yesPolicy Studies Journal, Volume 54, Issue 1, February 2026.
ABSTRACT Beneficiaries of public programs must overcome several administrative challenges. Given what we know about the politics of the welfare state, it seems likely that the public's willingness to support reductions in burdens may be associated with the characteristics of potential policy targets including their life circumstances and their race ...
Simon F. Haeder
wiley   +1 more source

不同类型幽门螺杆菌致病力和耐药性差异的研究

open access: yesZhongguo shiyan zhenduanxue, 2012
大量的流行病学调查证实,自然人群中幽门螺杆菌(HP)感染率相当高,HP在全球人群的感染率超过50%,而且随着年龄的增加有递增趋势[1],而且感染情况与致病性因地域不同有很大差异,不同国家和地区分离的HP菌株基因结构呈现人群或地区性差异,因此HP致病差异性已引起人们重视,较多的研究表明HP的致病性主要与菌型差异、感染的年龄及机体的反应性、地域性 ...
白玉, 金涌
doaj  

The Effects of Working Memory Updating on Chinese Reading Comprehension Among Bilingual Primary School Students

open access: yesNew Directions for Child and Adolescent Development, Volume 2026, Issue 1, 2026.
Background Working memory updating is crucial in bilingual children′s second language (L2) reading comprehension. A robust updating ability is a cognitive key for children to successfully master L2 reading comprehension. Objective This study is aimed at investigating the effect of updating ability on the L2 Chinese reading comprehension among Uyghur ...
Guangxin Li   +3 more
wiley   +1 more source

解淀粉芽孢杆菌Q-426群体感应系统的研究

open access: yes, 2011
细菌的群体感应是一种群体行为调控机制,它通过分泌一种或多种信号分子来感知菌 群密度,并调控一系列靶基因的表达。细菌抗生素的合成和生物膜的形成都受其信号分子 的调控。 本文利用高效液相色谱(HPLC)、气相-质谱(GC-MS)等技术对解淀粉芽孢杆菌Q-426 的群体感应信号分子进行了分离纯化和结构解析, 鉴定其为二酮哌嗪类物质 (diketopiperazines,DKPs)。 利用实时荧光定量PCR 和双向电泳等现代生物分析技术研究了信号分子DKPs 对 Q-426 菌的抗菌活性和生物膜形成的影响 ...
王建华
core  

Fostering Conservation Leadership Among the Youth: Insights From the Roots & Shoots Next Jane Program in China 题目:提升青年保护领导力:来自根与芽中国项目“长风行动”的启示

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 695-705, December 2025.
The Next Jane program from Roots & Shoots was found effective for the conservation leadership improvement even though the participants attended it with different motivations. The development of conservation leadership traits was facilitated by skills development, a supportive environment, and reflective action.
Zhang Zekun, Chen Jin, Gu Siqi, He He
wiley   +1 more source

感应耦合射频等离子体(英)

open access: yes, 1986
本文根据Maher Ⅰ.Boulos的“感应耦合射频等离子体”一文,重点介绍其中的感应耦合射频等离子体的基本原理 ...
朱清文
core  

肺部高频超声对于新生儿支原体肺炎的诊断价值分析

open access: yesZhongguo shiyan zhenduanxue, 2020
支原体肺炎(MPP)是由肺炎支原体(MP)感染导致的呼吸道疾病,是小儿人群的常见疾病,也是儿童社区获得性肺炎(CAP)的重要类型之一,占比约为20%-40%[1,2]。MPP患儿发病后病情进展速度较快,虽然多数病例的病程具有自限性,但仍有部分患儿为难治性病例,主要表现为对大环内酯类抗菌药物耐药、混合感染、过度免疫反应等[3,4],甚至出现弥散性血管内凝血(DIC)、
于蓓
doaj  

Building a culture of connection in early childhood education: The Hand in Hand Foundations Course

open access: yesInfant Mental Health Journal: Infancy and Early Childhood, Volume 46, Issue 6, Page 675-695, November 2025.
Abstract Healthy early childhood development unfolds in the context of relationships with important caregivers, including early educators. Grounded in the evidence on early relational health, the 8‐week Hand in Hand Foundations Course for Early Childhood Educators teaches a novel connection‐based approach to understanding and responding to young ...
Angela Sillars   +6 more
wiley   +1 more source

聚合酶链反应与细胞培养法诊断泌尿生殖道沙眼衣原体感染的比较研究

open access: yesZhongguo shiyan zhenduanxue, 1997
为评价聚合酶链反应(PCR)在诊断泌尿生殖道沙眼衣原体感染中的实用性,对576份来自不同感染率人群的尿道、宫颈拭子标本进行PCR和细胞培养检测衣原体的比较,参照“扩大的金标准”,PCR和培养法的敏感性分别为100%、97.0%和86.4%、87.9%,特异性分别为98.5%、99.7%和100%,PCR的阳性预测值(PPV)和阴性预测值(NPV)分别为95.7%、97.0%和100%、99.7%。表明在沙眼衣原体检测中,PCR具有极好的敏感性和特异性,可替代培养法。
李珊山, 叶顺章
doaj  

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