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   66篇
  免费   3篇
  国内免费   1篇
儿科学   2篇
妇产科学   2篇
基础医学   2篇
口腔科学   3篇
临床医学   5篇
内科学   5篇
皮肤病学   1篇
神经病学   2篇
特种医学   2篇
外科学   5篇
综合类   19篇
预防医学   10篇
药学   4篇
中国医学   8篇
  2022年   2篇
  2021年   2篇
  2020年   4篇
  2019年   8篇
  2018年   6篇
  2017年   4篇
  2016年   2篇
  2015年   4篇
  2014年   9篇
  2013年   4篇
  2012年   1篇
  2011年   1篇
  2010年   3篇
  2009年   3篇
  2008年   2篇
  2007年   1篇
  2005年   1篇
  2002年   1篇
  2001年   1篇
  1996年   1篇
  1995年   2篇
  1994年   1篇
  1991年   1篇
  1989年   1篇
  1987年   2篇
  1985年   2篇
  1984年   1篇
排序方式: 共有70条查询结果,搜索用时 15 毫秒
1.
[1]目的 了解枢椎形态和结构的性别和地区差异.[2]方法 对通辽与长春两地区129套成人枢椎(男76套,女53套)进行了测量,指标包括齿突高、全高、椎体高、矢径、全宽、椎孔矢径和椎孔横径,并计算了椎体指数和椎孔指数.对所得数据进行统计学处理.[3]结果 枢椎的7项测量指标,除椎孔矢径与横径(长春地区的椎孔横径除外)以及通辽地区齿突高外,其性别差异均具极显著性(t=2.34~7.68,p<0.01或0.05);两地区比较,除女性齿突高外,其他指标差异均无显著性(t=0.03~1.95,p均>0.05).指数比较,除两地区女性椎体指数外,均无性别和地区间差异(t=0.04~1.86,p均>0.05).[4]结论 通辽和长春两地区成人枢椎的形态和结构无明显差异.  相似文献   
2.
目的:对肺癌合并糖尿病患者以长春瑞滨为主的联合化疗的疗效分析。方法:随机选取38例肺癌合并糖尿病患者,男20例,女18例,平均年龄(57.2±3.2)岁,肺癌病程平均(2.9±0.2)年;糖尿病程平均(4.3±0.7)年。进行长春瑞滨联合顺铂的 NP 化疗方案,观察疗效。结果:(1)1-4周期治疗有效率分别为27(71.1%)、20(57.9%)、15(42.1%)、8(21.1%)。(2)WBC 减少18例(47.4%),呕吐22例(57.9%),便秘7例(18.4%),神经毒性反应12例(31.6%),治疗4周期后,对应不良反应患者分别为10例(26.3%),13例(34.2%),3例(7.9%),4例(10.5%)。(3)患者生存期4-6月、6-9月、9-12月、1年以上患者分别为19例、10例、7例、2例。中位生存时间(约6个月)明显低于单纯非小细胞癌的中位生存时间(10个月)。结论:长春瑞滨为主的联合化疗方案对初治肺癌合并糖尿病患者的疗效中,总有效率短期尚可,长期应用呈下降趋势。根据个体差异,对症治疗白细胞降低、便秘、呕吐等不良反应,可提高患者耐受性和生活质量。  相似文献   
3.
4.
目的:参考 USP、EP,探讨并建立酒石酸长春瑞滨的细菌内毒素标准与检查方法(凝胶法)。方法按《中国药典》(2010年版)二部附录Ⅺ E 细菌内毒素检查方法进行。结果经验证,酒石酸长春瑞滨的细菌内毒素限值确定为 L <2.0IU/mg(以长春瑞滨计),通过稀释法可消除干扰,无干扰浓度为0.035mg/mL(以长春瑞滨计)。结论可按此标准采用本法对本品进行细菌内毒素检查。  相似文献   
5.
目的分析2008-2012年长春疾控机构卫生技术人员构成情况,为上级部门制定疾控卫生人力政策与规划,优化人力资源配置,加强疾控卫生人力队伍建设提供参考依据。方法利用国家卫生统计网络直报系统,对2008-2012年长春疾控机构卫生技术人员构成变化进行分析。结果 2008-2012年长春地区疾控卫生技术人员总数随着长春市人口的增长而减少,年龄构成趋于老龄化,学历以大专、中专及中技为主,职称以初级职称为主。结论长春地区疾控卫生技术人员从数量、年龄、学历、职称构成情况来看,均有所提高,但均未达到国家要求的水平,有待进一步调整。  相似文献   
6.

OBJECTIVES:

Exposure to lead and cadmium in developing countries is considered to be a public health emergency. The present study was designed to investigate children’s exposure to lead and cadmium in Changchun, China.

METHODS:

A total of 1619 blood samples were collected at random from 1426 children between one and 14 years of age, and 204 adults from Changchun, China. Blood lead and cadmium levels were determined using atomic absorption spectrophotometry.

RESULTS:

The average blood lead level in children was 60.29 μg/L, with boys exhibiting higher blood lead levels than girls. The average blood cadmium level in children was 1.26 μg/L, and differences were not observed between boys and girls.

CONCLUSIONS:

Children from Changchun exhibited relatively low blood lead and cadmium levels compared with children from other cities, and higher lead and lower cadmium levels than adults. This may be related to leaded gasoline environmental pollution and children’s hand-to-mouth activities.  相似文献   
7.

Background

The objective of this study was to evaluate three-dimensional morphology of acetabular lunate surface in patients with dysplastic hip using three-dimensional computed tomography (CT), and to compare the lunate surface morphology between the normal and dysplastic hips.

Methods

Sixty seven dysplastic hips in symptomatic patients and 61 normal hips in healthy volunteers who underwent three-dimensional CT scanning were included in this study. The size and shape of the lunate surface was measured with a fully automated imaging technique using Mimics16.0 software; lunate surface morphology was compared between the normal and dysplastic hips on the radial spherical coordinate system.

Results

A general trend of inferomedial rotation of the lunate surface was observed in dysplastic hips. Dysplastic hips showed a remarkable decrease in total absolute and relative size of the lunate surface as compared to that in normal hips. The dysplastic hips were divided into four groups: superior area decrease group (SD); anterosuperior area decrease group (ASD); global area decrease group (GD); global area increase group (GI). The arc of the global increase (GI) subgroup (26.86%) was increased, while that of the remaining three subgroups was decreased as compared to that in the normal acetabulum group.

Conclusion

Three-dimensional information and fundamental morphological features of the lunate surface in dysplastic hips were significantly different from those in the normal group. These findings may aid precise computational biomechanical analysis, preoperative planning for periacetabular osteotomy (PAO), achievement of satisfactory cartilaginous congruency, and judgment of postoperative prognosis in addition to postoperative treatment evaluation.  相似文献   
8.
对长春大花君子兰各部位中28种无机元素进行了测定。实验结果表明,各部位中都含有锶、铁、锌、钼、锰、铜、镍、氟、碘、铬、钴、铅、镉、汞钾、镁、钠、氯等18种元素。13种必需微量元素含量总和依叶、根、内果皮、花、外果皮和中果皮、花葶和花柄、种子顺序递减。28种元素的平均含量差异较大,同一种元素含量因部位不同差异也较大。铁、锌、锰、铜、镍、铬、钴、锶、钼、钒、钛的平均含量分别比一些中药高,而砷、铅、镉的平均含量则分别比一些中药低。各部位的Zn/Cu比值的平均值为3.01。  相似文献   
9.
目的 探讨长春瑞滨(NVB)加醛氢叶酸(CF)和大剂量氟尿嘧啶(5-FU)治疗晚期三阴性乳腺癌(TNBC)的疗效.方法 选择2010年4月~2012年4月我院收治的35例晚期TNBC患者作为观察对象,给予NVB联合CF、大剂量5-FU进行治疗,观察患者化疗后的有效率、毒副反应、疾病进展时间(TTP)、1年生存率.结果 治疗总有效率为74.29%,其中CR为5例,PR为21例,SD为5例,PD为4例,RP为26例.绝经前后有效率分别为40.00%、34.29%;浸润性导管癌和小叶癌有效率分别为42.85%、31.43%;转移灶单个和多个有效率分别为62.85%、8.57%;既往治疗包含紫杉类和不含紫杉类有效率均为37.14%.主要副作用有白细胞下降和口腔溃疡,其中白细胞下降总发生率为60.00%,口腔溃疡总发生率为74.29%,毒副反应大多为Ⅱ~Ⅲ级,在病患可承受范围内,疾病进展时间为(9.5±2.3)个月、1年生存率为(76.36±8.21)%.结论 NVB联合CF、大剂量5-FU治疗TNBC能提高有效率以及患者生存率,安全性较高,值得临床推广应用.  相似文献   
10.

Background

Studies that have investigated the association between vitamin D receptor (VDR) gene polymorphisms and intervertebral disc degeneration (IDD) have yielded inconsistent results.

Methods

To investigate the association between VDR gene polymorphisms and IDD, a systematic literature search for relevant published studies was performed on PubMed, Embase, Web of Science, Cochrane library, Wan-Fang, and CNKI databases. A random effects model was used for heterogeneous data; while a fixed effect model was used for homogenous data. Odds ratios (OR) and 95% confidence intervals (CI) were calculated to evaluate the strength of the association.

Results

We observed no association between VDR FokI, TaqI-ApaI polymorphisms and IDD. However, on subgroup analysis by ethnicity, VDR FokI mutation was associated with a significantly lower risk for IDD [dominant model: OR = 0.78, 95% CI = 0.65–0.93; heterozygote model: OR = 0.76, 95% CI = 0.63–0.92; allele model: OR = 0.86, 95% CI = 0.75–0.98] among Caucasians.

Conclusion

These results suggest that the VDR FokI polymorphism may be associated with IDD among Caucasians. However, the association between VDR TaqI-ApaI polymorphisms and IDD in Asians is still not clear. Further well-designed studies are needed to arrive at a definitive conclusion.  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