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The present study examined the effects of two models of work–family conflict (WFC) and job‐strain on the job‐related and context‐free well‐being of employees. The participants of the study consisted of Iranian employees from a variety of organizations. The effects of three dimensions of the job‐strain model and six forms of WFC on affective well‐being were assessed. The results of hierarchical multiple regression analysis revealed that the number of working hours, strain‐based work interfering with family life (WIF) along with job characteristic variables (i.e. supervisory support, job demands and job control) all make a significant contribution to the prediction of job‐related well‐being. On the other hand, strain‐based WIF and family interfering with work (FIW) significantly predicted context‐free well‐being. Implications are drawn and recommendations made regarding future research and interventions in the workplace. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
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BackgroundThis study aimed to investigate the context in which methadone maintenance treatment (MMT) is provided for opioid-dependent prisoners, and to identify barriers against further scale-up of MMT in Ghezel Hesar prison in Tehran.MethodsThis was a cross-sectional qualitative study using field observations, focus group discussions, and individual interviews. In total, 30 prisoners and 15 prison staff and health policymakers participated in this study in November 2006.ResultsThe rate of drug injecting in the prison unit was unanimously reported to have decreased drastically since introducing the MMT program. In addition to the health benefits to MMT recipients, interview data indicates that MMT has had positive effects on socio-economic status of prisoners’ families. Nevertheless, several impediments to the provision of MMT services and to its further expansion were also identified, including staff shortages, some degree of methadone diversion, widespread concerns over the possible side effects of methadone, and the stigma attached to methadone treatment.ConclusionMMT constitutes one of the main components of the Iran Prison Organization's comprehensive HIV prevention package and is becoming increasingly accessible to opioid-dependent prisoners in Iran. Our findings indicate that the MMT program in Ghezel Hesar prison has been helpful for many opioid-dependent prisoners to reduce their risk of drug-related harm and to ease social and financial burden over their families. Meanwhile, existing barriers against provision of MMT should be properly addressed before further scale up of the program.  相似文献   
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Silk-elastinlike protein polymers (SELPs) are recombinant polymers designed from silk fibroin and mammalian elastin amino acid repeats. These are versatile materials that have been examined as controlled release systems for intratumoral gene delivery. SELP hydrogels comprise monodisperse and tunable polymers that have the capability to control and localize the release and expression of plasmid DNA and viruses. This article reviews recent developments in the synthesis and characterization of SELP hydrogels and their use for matrix-mediated gene delivery.  相似文献   
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Background:

Occult hepatitis C virus infection (OCI) is recognized by finding hepatitis C virus (HCV) RNA in hepatocytes without detectable anti-HCV antibodies and viral RNA in plasma. Autoimmune hepatitis (AIH) is a chronic and generally progressive disease without exactly-identified etiology.

Objectives:

This study aimed to determine the prevalence of OCI among patients with AIH and to evaluate the tests used to rule out HCV infection in diagnosing AIH.

Patients and Methods:

Between July 2012 to February 2013, 35 Iranian patients with AIH who attended Tehran Hepatitis Center were investigated. For identifying OCI, detection of HCV RNA in both ultracentrifuged serum samples and peripheral blood mononuclear cells (PBMCs) was used. Data analysis was performed using SPSS.

Results:

Six males and 29 females with mean disease duration of 77.1 ± 39.5 month and mean age of 43.62 ± 12.67 years were investigated. All cases were negative for anti-HCV antibody and we could not find any HCV RNA in ultracentrifuged serum samples and PBMCs.

Conclusions:

With our laboratory diagnostic method, it seems that there are no cases of OCI in patients with AIH. However, we recommend further studies with more samples and more precise laboratory method.  相似文献   
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Objective

This study was conducted to investigate the effectiveness of anodal and cathodal methods in reducing the intensity of tinnitus and to compare them with the control.

Methodology

This randomized double-blind clinical trial with case and control groups was conducted in Al-Zahra Hospital in Isfahan between 2015 and 2016. In this trial, 51 patients with tinnitus, for at least one year, were selected among those outpatients visiting the throat, nose and ear clinic within this period. Inclusion criteria were patients on electrical stimulation prohibition, with Ménière's disease, otosclerosis, chronic headache, and pulsatile tinnitus. Patients were randomly divided in three equal-sized groups: anodal stimulation group, cathodal stimulation group, and control group. The subjects received 20-min current stimulation (2?mA). Five subjects were selected from those with a significant difference between the stimulated states (anodal or cathodal) and/or control. They received weekly transcranial electrical stimulation for two months, and their long-term recovery from tinnitus was investigated. Data analysis was done with SPSS20.

Results

Findings showed no significant between-groups difference in mean scores of tinnitus before the intervention (p?=?.68); whereas, this difference was significant immediately after the intervention (p?=?.02) and 1?h after it (p?=?.03). The mean score of tinnitus in the anodal stimulation group was significantly lower than the control; whereas, no significant difference was observed between the anodal and cathodal stimulation groups, and between the cathodal and control groups (p?<?.05). Findings also showed that the mean scores of tinnitus in two cathodal stimulation groups (p?=?.24) and control group (p?=?.62) were not significantly different at three different points of time; whereas, this score was significantly different in the anodal group at these time points (p?=?.01).

Conclusion

In conclusion, anodal stimulation was more effective than the cathodal and control stimulation in reducing the intensity of tinnitus in the short term.  相似文献   
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