全文获取类型
收费全文 | 195篇 |
免费 | 3篇 |
国内免费 | 3篇 |
专业分类
电工技术 | 1篇 |
综合类 | 11篇 |
化学工业 | 13篇 |
机械仪表 | 3篇 |
建筑科学 | 54篇 |
能源动力 | 4篇 |
轻工业 | 28篇 |
水利工程 | 1篇 |
无线电 | 5篇 |
一般工业技术 | 27篇 |
冶金工业 | 27篇 |
自动化技术 | 27篇 |
出版年
2024年 | 2篇 |
2023年 | 6篇 |
2022年 | 7篇 |
2021年 | 12篇 |
2020年 | 7篇 |
2019年 | 13篇 |
2018年 | 8篇 |
2017年 | 8篇 |
2016年 | 4篇 |
2015年 | 5篇 |
2014年 | 12篇 |
2013年 | 15篇 |
2012年 | 7篇 |
2011年 | 21篇 |
2010年 | 16篇 |
2009年 | 14篇 |
2008年 | 8篇 |
2007年 | 7篇 |
2006年 | 8篇 |
2005年 | 5篇 |
2004年 | 1篇 |
2003年 | 8篇 |
2002年 | 2篇 |
2000年 | 1篇 |
1998年 | 2篇 |
1981年 | 1篇 |
1956年 | 1篇 |
排序方式: 共有201条查询结果,搜索用时 62 毫秒
1.
Sophia X. Sui Lana J. Williams Kara L. Holloway-Kew Natalie K. Hyde Julie A. Pasco 《International journal of molecular sciences》2021,22(1)
Sarcopenia is the loss of skeletal muscle mass and function with advancing age. It involves both complex genetic and modifiable risk factors, such as lack of exercise, malnutrition and reduced neurological drive. Cognitive decline refers to diminished or impaired mental and/or intellectual functioning. Contracting skeletal muscle is a major source of neurotrophic factors, including brain-derived neurotrophic factor, which regulate synapses in the brain. Furthermore, skeletal muscle activity has important immune and redox effects that modify brain function and reduce muscle catabolism. The identification of common risk factors and underlying mechanisms for sarcopenia and cognition may allow the development of targeted interventions that slow or reverse sarcopenia and also certain forms of cognitive decline. However, the links between cognition and skeletal muscle have not been elucidated fully. This review provides a critical appraisal of the literature on the relationship between skeletal muscle health and cognition. The literature suggests that sarcopenia and cognitive decline share pathophysiological pathways. Ageing plays a role in both skeletal muscle deterioration and cognitive decline. Furthermore, lifestyle risk factors, such as physical inactivity, poor diet and smoking, are common to both disorders, so their potential role in the muscle–brain relationship warrants investigation. 相似文献
2.
Raffael Ott Xenia Pawlow Andreas Weiß Anna Hofelich Melanie Herbst Nadine Hummel Cornelia Prehn Jerzy Adamski Werner Rmisch-Margl Gabi Kastenmüller Anette-G. Ziegler Sandra Hummel 《International journal of molecular sciences》2020,21(24)
Shared metabolomic patterns at delivery have been suggested to underlie the mother-to-child transmission of adverse metabolic health. This study aimed to investigate whether mothers with gestational diabetes mellitus (GDM) and their offspring show similar metabolomic patterns several years postpartum. Targeted metabolomics (including 137 metabolites) was performed in plasma samples obtained during an oral glucose tolerance test from 48 mothers with GDM and their offspring at a cross-sectional study visit 8 years after delivery. Partial Pearson’s correlations between the area under the curve (AUC) of maternal and offspring metabolites were calculated, yielding so-called Gaussian graphical models. Spearman’s correlations were applied to investigate correlations of body mass index (BMI), Matsuda insulin sensitivity index (ISI-M), dietary intake, and physical activity between generations, and correlations of metabolite AUCs with lifestyle variables. This study revealed that BMI, ISI-M, and the AUC of six metabolites (carnitine, taurine, proline, SM(-OH) C14:1, creatinine, and PC ae C34:3) were significantly correlated between mothers and offspring several years postpartum. Intergenerational metabolite correlations were independent of shared BMI, ISI-M, age, sex, and all other metabolites. Furthermore, creatinine was correlated with physical activity in mothers. This study suggests that there is long-term metabolic programming in the offspring of mothers with GDM and informs us about targets that could be addressed by future intervention studies. 相似文献
3.
Evidence is presented that bears on 9 hypotheses about the link between religion or spirituality and mortality, morbidity, disability, or recovery from illness. In healthy participants, there is a strong, consistent, prospective, and often graded reduction in risk of mortality in church/service attenders. This reduction is approximately 25% after adjustment for confounders. Religion or spirituality protects against cardiovascular disease, largely mediated by the healthy lifestyle it encourages. Evidence fails to support a link between depth of religiousness and physical health. In patients, there are consistent failures to support the hypotheses that religion or spirituality slows the progression of cancer or improves recovery from acute illness but some evidence that religion or spirituality impedes recovery from acute illness. The authors conclude that church/service attendance protects healthy people against death. More methodologically sound studies are needed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
4.
王海彪 《吉林化工学院学报》2014,31(12):82-84
师德是教师获得幸福的必要条件,是教师幸福的基础。教师幸福是师德修养深层次的体现,是师德修养的深化。关于师德修养和教师幸福的关系,在教育界一直被讨论。通过对师德修养和教师幸福内涵进行分析,进而探讨其两者的关系,从而对两者有更加深刻的理解,对于提升师德修养,增强教师的幸福感,进而对当前教育教学改革产生一定理论意义和实践价值。 相似文献
5.
顾谦倩 《数码设计:surface》2009,(12):11-13
其实设计的附加值源于人们生活方式的改变,我们不再满足吃饱足,我们要求自我的个性、生活的多样性。设计中的文化附加值通过改变观念创造价值。设计改变着我们,改变着生活,从它诞生的那一天起。 相似文献
6.
胡晓 《数码设计:surface》2010,(9):248-250
近年来许多服装设计师开始大量借用中式服装中披挂,直线裁剪,抽褶等设计手法;本文通过分析平面结构服装的特点,对二维平面服装与西方立体服装进行对比,从审美和实用这两个角度,阐述平面结构式服装的特点。列举其设计形式的多变性和功能的舒适性在服装设计中的表现,指出平面结构形式对现代服装设计的影响与作用。 相似文献
7.
2010年中央一号文件对农民工问题非常重视,特别提出要解决好新生代农民工的问题。从职业培训角度分析了新生代农民工城市融入的瓶颈问题,并给出了应对策略。 相似文献
8.
The built environment is a key target of decarbonization policies. However, such policies often have a narrow objective and narrow focus, resulting in ‘policy-resistance’ and unintended consequences. The literature attributes these unintended consequences to a narrow financial focus, adverse incentives, and inadequate handling of knowledge, skills, communication and feedback gaps, but it provides little advice on how these complex interactions can be captured. This paper illustrates the development and application of an integrated approach to address these complex interactions with regard to housing performance, energy, communal spaces and wellbeing. In particular, it explores the dynamics created by these relationships with simulation modelling in participatory settings, and with a diverse group of stakeholders. The simulation results suggest that monitoring is key to improve the performance of the housing stock besides energy efficiency; and investments in communal spaces positively affect the adoption of energy-efficiency measures and the wellbeing of residents. The evaluation results for participatory workshops show this approach was found useful by the stakeholders for supporting more integrated decision-making about housing. In future research, this approach can be implemented for policy problems in specific contexts. 相似文献
9.
IntroductionPlaying an instrument could lead to various disorders and several musicians report problems during their career. As there is no existing one, the aim of this study was to build a comprehensive model of injury prevention and risk factors in musicians by combining literature with interviews of musicians and experts.MethodsThe initial model has been based on literature. This model identified nine categories of risk factors. Then, interviews were conducted with 15 Royal Liverpool Philharmonic Orchestra musicians and 9 experts in musicians’ health to develop the final version.ResultsEighty percent of the RLPO instrumentalists experienced at least once PRMDs in their career. Postural and workload issues were mentioned most frequently. Experts agreed broadly with the initial model and added interesting items that should be taken into account in assessing musicians’ health.DiscussionThis theoretical framework provides perspectives in terms of assessment, treatment and prevention in musicians, whether they are currently suffering from PRMDs or not. 相似文献
10.
D. J. Walmsley 《Urban Policy and Research》2013,31(4):509-523
Examination of the changing composition of shopping centres in suburban Sydney between 1969 and 1998 suggests that retail restructuring is linked to lifestyle changes. The growth in the number of shops appears to have matched population growth in the 1990s, suggesting that the suburbanisation of retailing has stabilised. At the same time there has been increasing diversification in terms of the retail functions which are available and in terms of the places where these are available. These changes appear linked to a blurring of the distinction between shopping and leisure and to the use of shopping as a way of signifying identity. 相似文献