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   377篇
  免费   75篇
  国内免费   1篇
  453篇
  2024年   1篇
  2023年   5篇
  2022年   4篇
  2021年   9篇
  2020年   19篇
  2019年   18篇
  2018年   16篇
  2017年   23篇
  2016年   22篇
  2015年   14篇
  2014年   18篇
  2013年   33篇
  2012年   62篇
  2011年   22篇
  2010年   14篇
  2009年   17篇
  2008年   12篇
  2007年   14篇
  2006年   24篇
  2005年   23篇
  2004年   18篇
  2003年   7篇
  2002年   7篇
  2001年   8篇
  2000年   3篇
  1999年   4篇
  1998年   5篇
  1997年   5篇
  1996年   5篇
  1995年   5篇
  1994年   2篇
  1993年   9篇
  1991年   2篇
  1989年   2篇
  1984年   1篇
排序方式: 共有453条查询结果,搜索用时 0 毫秒
1.
《Anthrozo?s》2013,26(2):150-165
Abstract

This paper describes a field study on the effects of attachment styles on the subjective well-being of institutionalized older persons after participating in a pet visitation program. We compared how attachment style (i.e., secure, anxious ambivalent, dismissive avoidant, and fearful avoidant) moderated the impact of a dog visitation program in 52 elderly residents of an assisted-living facility. Controlling for pre-visitation mood, the results revealed that the secure style related to increases in positive mood after interacting with the dogs. The anxious ambivalent style related to increases in positive mood and decreases in ratings of depression. Most importantly, the fearful avoidant style related to increases in depression after interacting with the dogs. The results highlight the notion that not all participants benefit from taking part in pet visitation programs. Theoretically, this study presents preliminary evidence for the relevance of attachment styles in understanding human–pet interactions.  相似文献   
2.
In a national survey of adult dental health conducted in the Republic of Ireland in 1989/90 a total of 1,527 subjects aged 25 and older were examined for root surface caries. It was found that the prevalence of root surface caries was highest in older age groups and also amongst males, residents of non-fluoridated communities and those earning low incomes. Tooth loss masked the potential prevalence of root surface caries. With more persons retaining their natural teeth into middle and old age the prevalence of root surface caries is likely to increase in the future.  相似文献   
3.
4.
A group of fourteen men (73 ± 5 yr of age), and eighteen women (77 ± 7 yr of age) institutionalized at the Berceni Clinical Hospital, Bucharest, Romania, were studied over a 24-hr span once during each season (winter, spring, summer and fall). All subjects followed a diurnal activity pattern with rest at night and ate three meals per day with breakfast at about 0830, lunch at about 1300 and dinner at about 1830. The meals were similar, although not identical for all subjects during all seasons. On each day of sampling blood was collected at 4-hr intervals over a 24-hr span. Seventeen hormonal variables were determined by radioimmunoassay. Statistically significant circadian rhythms were detected and quantitated by population mean cosinor analysis in pooled data from all four seasons in both sexes for ACTH, aldosterone, Cortisol, C-peptide, dehydroepiandrosterone-sulfate (DHEA-S), immunoreactive insulin, prolactin, 17-OH progesterone, testosterone, total T4 and TSH. In women, estradiol and progesterone also were determined and showed a circadian rhythm during all seasons. Total T, and FSH showed circadian rhythm detection by cosinor analysis in the men only; LH showed no consistent circadian rhythm as group phenomenon in men or women.

A circannual rhythm was detected using the circadian means of each subject at each season as input for the population mean cosinor in the women for ACTH, C-peptide, DHEA-S, FSH, LH, progesterone, 17-OH progesterone and TSH. In the men, a circannual rhythm was detected for ACTH, FSH, insulin, LH, testosterone and T3. There were phase differences between men and women in ACTH, FSH and LH. In those functions in which both the circadian and circannual rhythms were statistically significant, a comparison of the amplitudes showed in the women a higher circannual rather than circadian amplitude for DHEA-S. In 17-OH progesterone, TSH and C-peptide, the circadian amplitude in women was larger. In men, the circannual amplitude of T3 was larger than the circadian amplitude and in insulin the circadian amplitude was larger than the circannual amplitude. There was no statistically significant difference between the circadian and circannual amplitudes in the women in ACTH and progesterone and in the men in ACTH and testosterone.  相似文献   
5.
6.
7.
Background: There is controversy as to whether older adults with a BMI in the overweight range (25 to 29.9 kg/m2) are at increased health risk and whether they should be encouraged to lose weight. The purpose of this study was to determine whether older adults with a BMI in the overweight range are at increased morbidity and mortality risk. Methods: Participants consisted of 4968 older (≥65 years) men and women from the Cardiovascular Health Study limited access dataset. Based on BMI (kg/m2), participants were grouped into normal‐weight (20 to 24.9 kg/m2), overweight (25 to 29.9 kg/m2), and obese (≥30 kg/m2) categories. Participants were followed for up to 9 years to determine if they developed 10 weight‐related health outcomes that are pertinent to older adults. Cox proportional hazards models were used to estimate the hazards ratios of morbidity and mortality after adjusting for age, sex, income, smoking, and physical activity. Results: Compared with the normal‐weight group, the risks of myocardial infarction, stroke, sleep apnea, urinary incontinence, cancer, and osteoporosis were not different in the overweight group (p > 0.05). The risks for arthritis and physical disability were modestly increased in the overweight group (p < 0.05), whereas the risk for type 2 diabetes was increased by 78% in the overweight group (p < 0.01). After adjusting for all relevant covariates, all‐cause mortality risk was 11% lower in the overweight group (p < 0.05). Conclusions: A BMI in the overweight range was associated with some modest disease risks but a slightly lower overall mortality rate. These findings suggest that a BMI cut‐off point of 25 kg/m2 may be overly restrictive for the elderly.  相似文献   
8.
9.
10.
目的:探讨不同麻醉和术后镇痛方式对中老年胸科手术后胰岛素抵抗的影响。方法:中老年胸科手术患者80例随机分为治疗组与对照组各40例,两组都采用开胸手术治疗,于手术结束前30min硬膜外腔给予镇痛,治疗组采用舒芬太尼镇痛,对照组采用地佐辛镇痛。结果:两组镇痛后2h与镇痛后24h的HR和MVP对比差异明显(P〈0.05),同时对照组不同时间点的组内对比差异明显(P〈0.05),治疗组组内对比无明显差异。治疗组在镇痛后2h与镇痛后24h的VAS评分都明显少于对照组(P〈0.05),Ramsay评分治疗组高于对照组(P〈0.05)。治疗组组内不同时间点胰岛素含量和胰岛素敏感性对比无明显差异,而对照组对比差异明显(P〈0.05),同时镇痛后组间对比也有明显差异(P〈0.05)。结论:相对于地佐辛,舒芬太尼用于中老年胸科手术术后疼痛镇痛效果良好,能有效地抑制胰岛素抵抗与应激反应的发生,有很好的应用效果。  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