首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   553篇
  免费   24篇
  国内免费   1篇
  2023年   6篇
  2021年   7篇
  2019年   11篇
  2018年   10篇
  2017年   10篇
  2016年   18篇
  2015年   7篇
  2014年   5篇
  2013年   69篇
  2012年   23篇
  2011年   13篇
  2010年   12篇
  2009年   14篇
  2008年   14篇
  2007年   26篇
  2006年   20篇
  2005年   13篇
  2004年   19篇
  2003年   18篇
  2002年   15篇
  2001年   6篇
  2000年   6篇
  1999年   10篇
  1998年   6篇
  1997年   5篇
  1996年   9篇
  1995年   4篇
  1994年   6篇
  1992年   7篇
  1991年   5篇
  1989年   10篇
  1988年   7篇
  1987年   6篇
  1985年   9篇
  1984年   9篇
  1983年   7篇
  1982年   7篇
  1981年   7篇
  1980年   14篇
  1979年   10篇
  1978年   5篇
  1977年   9篇
  1976年   8篇
  1975年   9篇
  1974年   9篇
  1973年   7篇
  1972年   7篇
  1971年   5篇
  1967年   5篇
  1966年   5篇
排序方式: 共有578条查询结果,搜索用时 15 毫秒
181.
Publishing research is imperative to both counselor educators and students in counseling programs. Furthermore, faculty–student publication collaborations can often be a mutually beneficial professional endeavor. However, determining order of authorship can be a complex ethical issue. The authors review prior research to illustrate the complexities of authorship and suggest a decision‐making model and considerations for preventing and resolving these ethical dilemmas. Implications for counselors include future research studies on complex issues regarding authorship of faculty–student collaborations, future incidence studies investigating occurrence of ethics violations, and incorporation of publication ethics into course work in counselor education programs.  相似文献   
182.
Recent research using the rapid serial visual presentation (RSVP) paradigm with English sentences that included words with letter transpositions (e.g., jugde) has shown that participants can readily reproduce the correctly spelled sentences with little cost; in contrast, there is a dramatic reading cost with root-derived Hebrew words (Velan & Frost, Psychonomic Bulletin & Review 14:913-918, 2007, Cognition 118:141-156, 2011). This divergence could be due to (1) the processing of root-derived words in Semitic languages or (2) the peculiarities of the transitional probabilities in root-derived Hebrew words. Unlike Hebrew, Maltese is a Semitic language that does not omit vowel information in print and whose morphology also has a significant non-Semitic (mostly Romance) morphology. Here, we employed the same RSVP technique used by Velan and Frost (Psychonomic Bulletin & Review 14:913-918, 2007, Cognition 118:141-156, 2011), this time with Maltese (and English) sentences. The results showed that Maltese-English bilinguals were able to reproduce the Maltese words-regardless of whether they were misspelled (involving the transposition of two letters from the consonantal root) or not, with no reading cost-just as in English. The apparent divergences between the RSVP data with Hebrew versus Maltese sentences are likely due to the combination of the characteristics of the Hebrew orthographic system with the Semitic morphology.  相似文献   
183.
Abstract

Quality of life assessment is a central element of clinical trials and related forms of evaluative research. Early efforts to establish appropriate methods of measuring quality of life drew on psychometric principles and emphasised the need for validated measures. However, it is increasingly clear that, whilst still a central requirement of quality of life measures, validity needs to be emphasised alongside a number of other essential properties that have become clearer as the field has developed. Moreover formal psychometric methodology has to be adapted to take account of the specific needs of evaluative research. Research is beginning to develop more appropriate methods of outcome assessment in this area. Further lines of research are suggested to examine psychometric with other approaches to measurement of health-related quality of life.  相似文献   
184.
A number of models of behaviour have been applied to contraception use including subjective expected utility theory and social cognition models. Whilst correlates of contraception use have been identified, the limitations of these models include their failure to consider either contextual factors or changes in contraception use over time. Researchers have called for integrated and dynamic models of contraception use, which can be related to the changing contraception use of individual women and can also be readily operationalised to explore within and between subject differences in contraception use. The present study therefore used a qualitative methodology to explore women's contraceptive histories and to enable women to define the issues from their perspectives, resulting in a model of contraception use that is firmly located within the context of their own lives and allows an investigation of the factors and processes involved in changes in contraception use/non-use over time. This model conceptualises the predictors of contraception use in terms of the meaning and importance of a range of social goals, perceptions of vulnerability and constraints on or facilitators of contraception. Further the dynamic nature of these factors is described and it is illustrated how these core components vary over time according to situation, experience, and new information. The paper outlines the relevance of the findings for different models of decision-making processes and highlights the way that the model addresses the limitations of previous approaches.  相似文献   
185.
Magnetic Resonance Spectroscopy (MRS) and its association with neuropsychological functioning was examined in the chronic injury phase of paediatric traumatic brain injury (TBI). Fifteen children, aged 10-16 years, with severe TBIs were compared with 15 controls, matched for age and gender. The TBI group was found to have significantly lower levels of N-acetyl aspartate (NAA) and Choline (Cho) in the right frontal lobe and generally displayed reduced performances on neuropsychological tests. A correlation between metabolites and reaction times was also obtained. Findings indicate a role of proton MRS as a measure of neuronal integrity following severe paediatric TBI and suggest a potential association of MRS with specific neuropsychological impairments.  相似文献   
186.
The present article aims to resolve the debate on the degree of benefit of processing tool or die steels by cryogenic treatment. This has been done by measuring transition loads for quenched and tempered die steel with and without cryogenic treatment. The wide range of reported degrees of improvement of wear resistance by cryotreatment is explained by the operative modes and mechanisms of sliding wear considering the wear rate ratio of conventionally treated to cryotreated steels on a two-dimensional map.  相似文献   
187.
The recrystallization behaviour of a cold-rolled, low-density, low-alloy duplex-phase alloy (Fe–6.57Al–3.34Mn–0.18C, wt.%) has been studied. Temperature-resolved X-ray diffraction and dilatometry showed that the alloy recrystallizes at 850?°C during continuous heating. However, electron back-scattered diffraction investigations using Kernel average misorientation revealed that during annealing ferrite recrystallizes at lower temperatures while austenite remains strained up to 1200?°C. This study underlines the complexity of recrystallization of a microstructure comprising of constituents with high and low stacking fault energy.  相似文献   
188.
189.
This study explores the personal meaning of head and neck cancer for individuals, with particular reference to the impact on the self. It employs interpretative phenomenological and repertory grid analysis with 10 people, all of whom have undergone surgical treatment for head and ceck cancer. Four themes emerged: namely, destruction of self, altered relations with the body, disenfranchised self, and conservation of self. Repertory grid analysis validated and enriched understanding of these findings. Participants described how head and neck cancer inflicted a fundamental attack on their sense of self. Nonetheless, participants were dynamic in their self-management and detailed an active process to retain a positive sense of self.  相似文献   
190.
High-resolution neuroimaging modalities are used often in studies involving healthy volunteers. Subsequently, a significant increase in the incidental discovery of asymptomatic intracranial abnormalities raised the important ethical issues of when follow-up and treatment may be necessary. We examined the literature to establish a practical set of criteria for approaching incidental findings. Our objective is to develop an algorithm for when follow-up may be important and to provide recommendations that would increase the likelihood of follow-up. A systematic literature search was performed using the PubMed and MEDLINE databases to identify articles describing brain tumors and intracranial aneurysms. The treatment algorithm we present suggests that incidental intracranial masses suspicious for glioma should be biopsied or resected, while other masses are to be followed with serial imaging based on the expected growth pattern. Lack of follow-up can result in adverse outcomes that can be mitigated by using technology to facilitate communication and improve follow-up care. The importance of training physicians to be good communicators is also stressed. New technology including automated telephone systems, texting and email will improve access to patients and hopefully encourage compliance and follow-up.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号