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   370篇
  免费   61篇
  431篇
  2023年   11篇
  2020年   34篇
  2019年   3篇
  2018年   3篇
  2017年   20篇
  2016年   25篇
  2015年   16篇
  2014年   32篇
  2013年   59篇
  2012年   14篇
  2011年   9篇
  2010年   20篇
  2009年   31篇
  2008年   15篇
  2007年   4篇
  2006年   9篇
  2005年   1篇
  2004年   2篇
  2003年   1篇
  2002年   2篇
  2000年   13篇
  1999年   3篇
  1998年   2篇
  1997年   4篇
  1996年   9篇
  1995年   5篇
  1994年   8篇
  1993年   3篇
  1992年   5篇
  1991年   8篇
  1990年   8篇
  1989年   6篇
  1988年   7篇
  1987年   7篇
  1986年   6篇
  1985年   3篇
  1984年   3篇
  1982年   1篇
  1981年   1篇
  1979年   4篇
  1978年   5篇
  1977年   8篇
  1946年   1篇
排序方式: 共有431条查询结果,搜索用时 15 毫秒
291.
Suicide is an understudied subject in Pakistan. There are many social, legal, and religious sanctions against it. National rates of suicides are not known. We calculated suicide rates of women in the Ghizer District of the remote Northern Areas of Pakistan. During years 2000 to 2004, 49 women committed suicide. Taking average mean population for women for 5 years as 65,783, we calculated annual crude suicide rates for women as 14.89/100,000/year. For women over the age of 15 years, rates were 33.22/100,000/year; age‐specific rates for 15–24 years were 61.07/100,000 per year. These figures are considerably higher than suicide rates in other parts of Pakistan and may be related to high psychiatric morbidity in Pakistani women. This study underscores the need for a standardized system of registration of suicides in Pakistan. There is also urgent need to address high psychological distress in women in Pakistan.  相似文献   
292.
The current study examined the relationship between a prognostic indicator of vascular health, flow-mediated dilation (FMD), and working memory-related brain activation in healthy middle-aged adults. Forty-two participants underwent functional magnetic resonance imaging while completing a 2-Back working memory task. Brachial artery endothelial-dependent flow-mediated dilation (FMD) was assessed using B-mode ultrasound. The relationship between FMD and task-related brain activation in a priori regions of interest was modeled using hierarchical linear regression. Brachial FMD, was significantly related to reduced working memory-related activation in the right superior parietal lobule (β = 0.338, p = 0.027), independent of age, sex, systolic blood pressure, and full scale IQ (F(5, 36) = 2.66, p = 0.038). These data provide preliminary support for the association between a preclinical marker of endothelial dysfunction and cerebral hemodynamic alterations in healthy middle-aged adults. Considering the modifiable nature of endothelial function, additional investigations on the prognostic significance of FMD on future cognitive impairment are warranted.  相似文献   
293.
Lifetime worst‐point suicidality is associated with risk of subsequent death by suicide. Yet little is known about how people who deliberately self‐poison (DSP) change their appraisal of suicidal intent of a single DSP episode over time. We assessed whether suicidal intent for a single index episode of DSP changed over time and factors associated with such change. We studied 202 patients admitted for DSP (66.3% female, all Caucasian), 18–85 years old (M = 37.8, SD = 14.8), using a longitudinal design (0, 3, and 12 months). The primary outcome measure was change in suicidal intent for a single index DSP episode, analyzed using multilevel modeling. Wish to die and whether the episode was considered a suicide attempt increased significantly with depressed mood. Wish to die associated with the index episode also increased over time independently of depressed mood. No association with time or depressed mood was found for perceived likelihood of dying. Depressed mood was strongly associated with appraisal of suicidal intent associated with a DSP episode. In suicide risk assessment, reports of the nature and severity of past DSP should be interpreted in light of current mood.  相似文献   
294.
Self‐harm and suicide attempts occur at elevated rates among individuals with bulimia nervosa, particularly among those who have experienced childhood abuse. This study investigated the potential mediating roles of emotion dysregulation and affective intensity in the relationship between these variables in 125 women with bulimia nervosa. Analyses revealed that emotion dysregulation mediated the relationship between sexual and emotional abuse with both self‐harm and suicide attempts. Negative affective intensity mediated the relationship between abuse and suicide attempts. The findings may advance the understanding of mechanisms underlying suicide‐related behaviors in women with bulimia nervosa who experienced abuse and suggest potential clinical targets.  相似文献   
295.
In this commentary, the effects of four family‐based preventive interventions designed to augment parent and child resilience, originally designed to prevent mental health and substance abuse, on suicide ideation and attempts are reviewed. Three of the preventive interventions showed a beneficial effect either on child suicide ideation or attempts, and one found a beneficial effect on parental suicidal ideation. The duration of effects in two of these studies was well longer than a decade. These studies suggest that interventions to augment family and child resiliency originally designed to prevent mental health and substance abuse disorders can also have beneficial, often long‐term, effects on suicidal ideation and behavior.  相似文献   
296.
Suicide risk among military veterans is an important and ongoing concern. The Veterans Administration (VA) mandates suicide risk screening of all veterans seen for mental health issues, but little is known about the effectiveness of this screening. A retrospective chart review to examine all suicide risk screens at VA San Diego between October and December 2012 (= 3,365) was conducted to assess whether results were associated with suicidal behavior over the subsequent 12 months. Patients judged to be at increased risk for suicide were 3 to 16 times more likely to attempt suicide and 7 to 25 times more likely to engage in self‐directed violence over the next 12 months compared with others. The screening tool may be a useful addition to clinical practice.  相似文献   
297.
A total of 295 veterans who died by suicide in 2009 across 11 states and received Veterans Affairs (VA) health care in the 6 months prior to death were identified. The suicide risk factors documented and the care received at these veterans' last VA contacts are described, and the study explores whether veterans present differently to VA care (i.e., different risk factors documented or different care settings accessed) based on the proximity of their last contact to suicide. Many veterans were seen in primary care (n = 136; 46%) for routine follow‐up (n = 168; 57%). Fifty‐three (18%) were assessed for suicidal thoughts; 20 (38%) of whom endorsed such thoughts. Although higher frequencies of some risk factors at last contacts more proximal to suicide compared to those more distal were observed, findings overall highlight the challenges clinicians face detecting enhanced risk prior to suicide.  相似文献   
298.
We investigated the psychometric validity and reliability of the Suicide Status Form‐II (SSF‐II) developed by Jobes, Jacoby, Cimbolic, and Hustead (1997) . Participants were 149 psychiatric inpatients (108 suicidal; 41 nonsuicidal) at the Mayo Clinic. Each participant completed assessment measures within 24 hours of admission and 48–72 hours later. Factor analyses of the SSF core assessment produced a robust two‐factor solution reflecting chronic and acute response styles. The SSF core assessment had good to excellent convergent and criterion validity; pre‐post SSF ratings also demonstrated moderate test‐retest reliability. The results replicated previous research and show that the SSF‐II is psychometrically sound with a high‐risk suicidal inpatient sample.  相似文献   
299.
We examined the impact of risk and protective factors on the odds that African American adolescents seriously think about or attempt suicide. Data from students in grades 5–12 in a mostly urban, southeastern U.S. school district were analyzed. Findings support earlier work documenting differences in gender and grades. Risk factors were uniformly significant in understanding both ideation and attempts. Protective factors were not consistent predictors; the lowering role of religious protective factors was limited, though student's belonging to or their perception of belonging to a spiritual community was a significant factor in lowering the odds of suicide ideation.  相似文献   
300.
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