全文获取类型
收费全文 | 438篇 |
免费 | 8篇 |
国内免费 | 5篇 |
专业分类
管理学 | 8篇 |
民族学 | 2篇 |
人口学 | 8篇 |
丛书文集 | 28篇 |
理论方法论 | 15篇 |
综合类 | 170篇 |
社会学 | 187篇 |
统计学 | 33篇 |
出版年
2023年 | 2篇 |
2022年 | 1篇 |
2020年 | 4篇 |
2019年 | 11篇 |
2018年 | 15篇 |
2017年 | 21篇 |
2016年 | 21篇 |
2015年 | 8篇 |
2014年 | 10篇 |
2013年 | 128篇 |
2012年 | 13篇 |
2011年 | 18篇 |
2010年 | 13篇 |
2009年 | 22篇 |
2008年 | 24篇 |
2007年 | 19篇 |
2006年 | 18篇 |
2005年 | 22篇 |
2004年 | 16篇 |
2003年 | 13篇 |
2002年 | 16篇 |
2001年 | 9篇 |
2000年 | 8篇 |
1999年 | 1篇 |
1998年 | 9篇 |
1996年 | 4篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1985年 | 1篇 |
1983年 | 1篇 |
排序方式: 共有451条查询结果,搜索用时 15 毫秒
201.
孙淑奇 《齐齐哈尔大学学报(哲学社会科学版)》2012,(3):33-35
鲁迅先生的小说《伤逝》把较早接受西方文明思想的知识分子放在那个仍然被封建传统文化冰封的社会环境中,对他们的日常生活和精神追求进行冷静的思考,并加以灵魂的拷问,从而为我们提供了一个因文化分裂而导致的审美和日常生活相悖谬的范例。 相似文献
202.
203.
《The aging male》2013,16(3):150-151
Osteoporosis in elderly men is becoming an important health issue with the aging society. Elderly men with androgen deficiency are exposed to osteoporosis and can be treated with testosterone replacement. In this study, Eurycoma longifolia (EL), a plant with androgenic effects, was supplemented to an androgen-deficient osteoporotic aged rat as alternative to testosterone. Aged 12 months old Sprague-Dawley rats were divided into groups of normal control (NC), sham-operated (SO), orchidectomised-control (OrxC), orchidectomised and supplemented with EL (Orx?+?El) and orchidectomised and given testosterone (Orx?+?T). After 6 weeks of treatment, serum osteocalcin, serum terminal C-telopeptide Type 1 collagen (CTX) and the fourth lumbar bone calcium were measured. There were no significant differences in the osteocalcin levels before and after treatment in all the groups. The CTX levels were also similar for all the groups before treatment. However, after treatment, orchidectomy had caused significant elevation of CTX compared to normal control rats. Testosterone replacements in orchidectomised rats were able to prevent the rise of CTX. Orchidectomy had also reduced the bone calcium level compared to normal control rats. Both testosterone replacement and EL supplementation to orchidectomised rats were able to maintain the bone calcium level, with the former showing better effects. As a conclusion, EL prevented bone calcium loss in orchidectomised rats and therefore has the potential to be used as an alternative treatment for androgen deficient osteoporosis. 相似文献
204.
Reproduced with permission 相似文献
205.
《The aging male》2013,16(4):169-172
AbstractPurpose: We examined the prevalence of low testosterone (LT) and its relationship with body mass index (BMI) in men with lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH), who were enrolled in a clinical trial of drug therapy, the Medical Therapy of Prostatic Symptoms (MTOPS) Study.Materials and methods: MTOPS enrolled 3047 men, and of these, 1896 had total testosterone (TT) measured at baseline. LT was defined as a single measurement of TT of <300?ng/dL.Results: The overall prevalence of LT was 25.7%. Prevalence increased with increasing BMI; 14.7% among men who were normal weight (BMI <25?kg/m2) and 24.2% and 39.3% among overweight (BMI 25 to <30?kg/m2), and obese (baseline BMI ≥30?kg/m2) men, respectively.Conclusions: LT was observed in about one in four MTOPS study participants with baseline TT measurements. The prevalence of LT increased markedly with increasing BMI. Our findings suggest a high prevalence of LT in obese men with LUTS/BPH. Physicians should be alert to the possibility of symptoms of hypogonadism in this population. 相似文献
206.
《The aging male》2013,16(4):143-150
AbstractRecommendations on the diagnosis, treatment and monitoring of late-onset hypogonadism (LOH) in men were first published by ISSAM in 2002 In 2005, and, in 2008, updated recommendations were published in the International Journal of Andrology, the Journal of Andrology, the Aging Male and European Urology. Towards discussions at the next ISSAM/ESSAM meeting in Moscow, 29 November 2013, we suggest the following update. 相似文献
207.
and for the Study Investigators 《The aging male》2013,16(2):38-47
AbstractObjective: We investigated the effects of oral testosterone undecanoate (TU) on bone mineral density (BMD), lean body mass (LBM) and body fat mass (BFM) in aging men with symptomatic testosterone deficiency (TD).Methods: Three hundred twenty-two men ≥50 years with TD symptoms and calculated free testosterone <0.26?nmol/L participated in a multicenter, double-blind, placebo-controlled trial. Patients were randomized to placebo, oral TU 80?mg/d, oral TU 160?mg/d, or oral TU 240?mg/d, administered as divided doses with normal meals. BMD of the hip and lumbar spine were evaluated by dual energy X-ray absorptiometry (DEXA), and body composition (LBM and BFM) by whole body DEXA.Results: Oral TU significantly increased BMD at Month 12 at the lumbar spine (240?mg/d), total hip (240?mg/d), and trochanter and intertrochanter (160 and 240?mg/d) compared with placebo. Oral TU significantly increased LBM at Months 6 and 12 for all oral TU groups compared with placebo. BFM significantly decreased at Month 6 (all oral TU groups) and Month 12 (160?mg/d) compared with placebo. The effects on BMD and body composition showed a clear dose response.Conclusions: Treatment with oral TU led to improvement in BMD, LBM and BFM in aging men with symptomatic TD. 相似文献
208.
《The aging male》2013,16(1):48-52
Introduction.?The aim of this study was to investigate the relationship among metabolic syndrome (MetS), erectile dysfunction (ED) and lower urinary tract symptoms (LUTS) in patients with benign prostatic hyperplasia (BPH).Methods.?Our study included 106 patients with BPH, 33 (31.1%) of whom had MetS. Blood pressures, waist circumferences, serum levels of fasting blood glucose, high density lipoprotein and triglyceride of patients were recorded. Erectile functions of the patients were evaluated by International Index of Erectile Function (IIEF). Patients were divided into two groups according to IIEF scores, namely ‘mild/no ED’ and ‘moderate/severe ED’. IIEF scores of ED groups were between 17 and 30 and 6–16 in turn. LUTS severities were assessed by International Prostate Symptom Score (IPSS) and classified as mild (IPSS 0–7), moderate (IPSS 8–19) and severe (IPSS 20–35).Results.?There was a significant difference between ED groups concerning MetS presence (p?=?0.032). MetS presence was not found to be associated with the severity of LUTS (p?=?0.144). There was no correlation between ED groups regarding LUTS severity (p?=?0.303).Conclusion.?Results of the present study showed a correlation between MetS presence and ED. In the light of our results, MetS seems to play an important role in the etiopathogenesis of ED in patients with BPH. 相似文献
209.
《The aging male》2013,16(3):201-204
AbstractHypogonadism is a condition in which the endogenous secretion of testosterone is either insufficient or inadequate to maintain serum testosterone levels within normal range, and may manifest as a variety of signs and symptoms. Age-related hypogonadism is due to a combination of primary hypogonadism (testicular failure) and secondary hypogonadism (hypothalamic-pituitary axis failure). This review provides insight into the mechanisms resulting in the multifactorial nature of acquired androgen-deficiency, and outlines the current controversy regarding testosterone-replacement therapy in aging males. 相似文献
210.
Wynne E. Norton PhD Jeffrey D. Fisher PhD K. Rivet Amico PhD John F. Dovidio PhD Blair T. Johnson PhD 《Journal of American college health : J of ACH》2013,61(8):574-582
Abstract Objectives: Despite findings suggesting that young adults are more concerned about experiencing an unplanned pregnancy or contracting a sexually transmitted infection (STI) than becoming human immunodeficiency virus (HIV) infected, no empirical work has investigated whether the specific focus of an intervention may be more or less efficacious at changing sexual behavior. Participants: Participants were 198 college students randomized to 1 of 4 conditions: pregnancy intervention, STI intervention, HIV intervention, or a control condition during 2008–2009. Methods: The authors compared the efficacy of 3 theory-based, sexual risk–reduction interventions that were exactly the same except for an exclusive focus on preventing pregnancy, STI, or HIV. Condom use and risky sexual behavior were assessed at baseline and 4-week and 8-week follow-up. Results: Participants exposed to the pregnancy or STI interventions reported greater condom use and less risky sexual behavior than those exposed to the HIV intervention. Conclusions: The focus of sexual risk–reduction interventions may lead to differential behavior change among young adults. 相似文献