全文获取类型
收费全文 | 1297篇 |
免费 | 45篇 |
出版年
2022年 | 12篇 |
2021年 | 9篇 |
2020年 | 20篇 |
2019年 | 23篇 |
2018年 | 41篇 |
2017年 | 35篇 |
2016年 | 32篇 |
2015年 | 33篇 |
2014年 | 48篇 |
2013年 | 135篇 |
2012年 | 60篇 |
2011年 | 49篇 |
2010年 | 45篇 |
2009年 | 38篇 |
2008年 | 54篇 |
2007年 | 56篇 |
2006年 | 55篇 |
2005年 | 45篇 |
2004年 | 41篇 |
2003年 | 46篇 |
2002年 | 38篇 |
2001年 | 30篇 |
2000年 | 14篇 |
1999年 | 16篇 |
1998年 | 19篇 |
1997年 | 15篇 |
1996年 | 20篇 |
1995年 | 18篇 |
1994年 | 23篇 |
1993年 | 14篇 |
1992年 | 20篇 |
1991年 | 11篇 |
1990年 | 13篇 |
1989年 | 12篇 |
1988年 | 5篇 |
1987年 | 11篇 |
1986年 | 8篇 |
1985年 | 9篇 |
1984年 | 16篇 |
1983年 | 12篇 |
1982年 | 12篇 |
1981年 | 11篇 |
1980年 | 13篇 |
1979年 | 19篇 |
1978年 | 13篇 |
1977年 | 17篇 |
1976年 | 9篇 |
1974年 | 8篇 |
1973年 | 13篇 |
1971年 | 4篇 |
排序方式: 共有1342条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
This longitudinal study was conducted among 102 women with non-metastasic breast cancer to identify the time evolution and prevalence of distress at specific times through diagnosis and treatment of disease: preliminary diagnosis, surgery, definitive diagnosis and chemotherapy. Additionally, the study aimed to examine the role of demographic, medical and psychosocial factors on distress. The results indicated that prevalence of distress was higher at initial diagnosis (25%) than the following time points (approximately 17%). The differences inter-individuals in the levels of distress were observed over the four assessments. No relation between distress and demographic and medical factors was found. However, psychosocial aspects were significant risk factors. Patterns of emotional suppression and specific coping responses like helplessness/hopelessness, anxious preoccupation, cognitive avoidance and fatalism were positively related to distress, whereas fighting spirit and perceived social support showed a protective role. Moreover, helplessness/hopelessness and anxious preoccupation jointly predicted 75% of cases and 98% non-cases of distress. Finally, a mediational model between emotional suppression and distress through helplessness/hopelessness was tested. Results support the necessity of routine distress screening all through the illness. Implications of data for psychosocial interventions with breast cancer patients are highlighted. 相似文献
85.
Elliott AM Mhanni AA Marles SL Greenberg CR Chudley AE Nyhof GC Chodirker BN 《Journal of genetic counseling》2012,21(2):337-344
Telehealth involves the use of information and communications technology to deliver health services to patients over distance.
Canada is well suited to benefit from telehealth since many individuals live in remote, rural and isolated locations. Manitoba
is the easternmost prairie province and MBTelehealth is an active Canadian program that currently has 105 sites in 73 communities.
Although studies of patient satisfaction comparing telehealth to on-site clinical visits have been conducted, a comparative
study of the types of genetics patients seen via these two modalities has not been performed previously. In this study we:
(1) examined the uptake of telehealth in Genetics in Manitoba; (2) contrasted telehealth usage in Genetics with other clinical
programs; and (3) performed a comparative study of the types of Genetics referrals seen in 2008 on-site versus via telehealth.
Results indicate the uptake of telehealth is increasing and has made genetics outreach clinics unnecessary. The Program of
Genetics and Metabolism is consistently one of the top ten utilizers of telehealth within the province. With respect to discipline,
chi square analysis revealed the trends were not significantly different for on-site and telehealth encounters, with prenatal
referrals being the most common and Hereditary Breast and Ovarian Cancer referrals being the least common. Referrals within
each discipline varied depending on the need for fetal assessment and physical examination. Telehealth was utilized regularly
for test results sessions across all disciplines. 相似文献
86.
Bank AM Barr R Calvert SL Parrott WG McDonough SC Rosenblum K 《Journal of child and family studies》2012,21(2):208-216
We describe the association between postpartum depression and the quantity and content of infant media use. Households with
depressed mothers viewed twice as much television as households with non-depressed mothers did, and depressed mothers appeared
to derive comparatively greater pleasure from television viewing. Maternal depression was associated with an increased exposure
to child-directed content by 6–9-month-old infants, although it was not associated with an increased exposure to adult-directed
programming. Depressed mothers also reported being less likely to sit and talk with their children during television use or
to consult outside sources of information about media. This increase in television exposure without corresponding parental
involvement could negatively affect developmental outcomes. 相似文献
87.
88.
Sandra J. Tanenbaum 《Theoretical medicine and bioethics》2012,33(4):263-277
Poor quality medical care is sometimes attributed to physicians?? unwillingness to act on evidence about what works best. Evidence-based performance standards (EBPSs) are one response to this problem, and they are increasingly employed by health care regulators and payers. Evidence in this instance is judged according to the precepts of evidence-based medicine (EBM); it is probabilistic, and the randomized controlled trial (RCT) is the gold standard. This means that EBPSs suffer all the infirmities of EBM generally??well rehearsed problems with the external validity of research findings as well as the inferential leap from study results in the aggregate to individual patient care. These theoretical weaknesses promise to have a practical impact on the care of patients. To avoid this, EBPSs should be understood as guidelines indicative of average effectiveness rather than standards to be applied in every case. 相似文献
89.
Ravizza SM Goudreau J Delgado MR Ruiz S 《Cognitive, affective & behavioral neuroscience》2012,12(1):193-206
Disruption of the dorsal frontostriatal pathways in Parkinson’s disease (PD) is associated with impairments in motivation,
as well as in executive function. The goal of this study was to investigate whether these impairments are related and, if
so, whether the disruption of frontostriatal pathways compromises the ability to process the motivational aspects of feedback
in such tasks. In Experiment 1, informative feedback improved the performance of young, healthy participants in a task-switching paradigm. This task-switching
paradigm was then used in Experiment 2 to test whether feedback would improve the performance of 17 PD patients and age-matched controls. The PD group benefitted
from feedback to the same degree as control participants; however, depression scores on the Beck Depression Inventory were
significantly related to feedback usage, especially when response selection demands were high. Regardless of feedback, PD
patients were more impaired when response demands were high than in an equally difficult condition with low action demands.
These results suggest that response selection is a core impairment of insufficient dopamine to the dorsal frontal striatal
pathways. 相似文献
90.
Emotional regulation of fertility decision making: What is the nature and structure of "baby fever"?
Baby fever-a visceral physical and emotional desire to have a baby-is well known in popular culture, but has not been empirically studied in psychology. Different theoretical perspectives suggest that desire for a baby is either superfluous to biological sex drives and maternal instincts, a sociocultural phenomenon unrelated to biological or evolutionary forces, or an evolved adpatation for regulating birth timing, proceptive behavior, and life history trajectories. A series of studies (involving 337 undergraduate participants and 853 participants from a general population Internet sample) found that: (a) a simple scale measure could elicit ratings of desire frequency; (b) these ratings exhibited significant sex differences; (c) this sex difference was distinct from a general desire for sexual activity; and (d) these findings generalize to a more diverse online population. Factor analyses of ratings for desire elicitors/inhibitors identified three primary factors underlying baby fever. Baby fever appears to be a real phenomenon, with an underlying multifactorial structure. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献