Results 101 to 110 of about 38,620 (164)

南京及周边地区体检人群AFP和CEA参考范围的建立

Zhongguo shiyan zhenduanxue, 2016
目的调查南京及周边地区体检人群血清甲胎蛋白（alpha-fetoprotein,AFP）和癌胚抗原（carcinoembryonic antigen,CEA）浓度,为其参考范围的建立提供重要参考依据。方法选取2016年5月-2016年7月在南京市第一医院核医学中心体检人群,共20387例,其中男性11 295例,女性9 092例,年龄分布为9-119岁。采用电化学发光法检测所有体检人群血清AFP和CEA浓度。分别对不同性别及不同年龄血清指标进行统计学分析,并利用单侧95%参考区间法计算各自的参考范围 ...
吕园, 俞杨, 瞿卫, 立彦, 傅雷, 杜同信, 王自正, 王峰   +7 more
doaj  

基于仿生模式的人脸识别

四川大学学报. 自然科学版, 2008
我们提出了基于"认识"事物的人脸识别.以同类样本全体的连续性规律为基本出发点把人脸识别看成人脸"认识"的问题而不是人脸分类划分,与以"最佳划分"为目标的传统统计模式识别相比,本文的方法更接近于人类"认识"事物的特性.同一人脸的分布在低维空间中具有一定的类聚性而不同人脸的覆盖范围相互交织.随着空间维数增加,同类样本内聚性减弱,不同类样本互斥性增强;空间维数继续增加,同类样本内聚性与不同类样本互斥性反而都会减弱.将待识别人脸在某一空间进行覆盖范围的识别.若属于多个侯选人脸覆盖范围 ...
琚生根, 周激流, 何坤, 王刚
doaj  

[Gender differences in acylcarnitine metabolism among patients with depression disorder]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Lei H, Liu T, Lu Y, Lao D, Tang M, Dang R.   +5 more
europepmc   +1 more source

[Arterial safe zones for acetabular screw placement in total hip arthroplasty: sex-based differences and individualized strategies]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Huan R, Guo S, Zhang J, Liu N.
europepmc   +1 more source

[Clinical characteristics and gender differences in Wagner grade 4-5 diabetic foot patients with variable severity of lower extremity atherosclerotic occlusive disease]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Gong X, Yuan T, Chen Z, Peng Y, Huang Y.
europepmc   +1 more source

[Sex-specific hemoglobin thresholds for oxygen saturation: A non-linear regression analysis based on Tibetan inpatients]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gongjue Z, Mao Y, Dawa P, Laba C, Yan Q.
europepmc   +1 more source

[Advances in research on gender differences in autism spectrum disorders]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Jiang TT, Li XQ, Zhao TT, Li HY, Tang Q.
europepmc   +1 more source

Sex differences in the global burden of autism spectrum disorders: An analysis based on GBD 2021 data. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Liu H, Ding J, Xu D, Yuan J, Ni Z, Liu B, Chang C, Lin J, Ji B, Qin X.   +9 more
europepmc   +1 more source

Sex differences in association of mixed exposure to blood cadmium, lead, mercury, selenium, manganese with osteoporosis. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Shi L, Li J, Wang Q, Luo C, Tian L, Wu X, Jin W, Sheng Z.   +7 more
europepmc   +1 more source

[Sex and age distribution of global disease burden of calcific aortic valve disease]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Deng X, Sui X, Li N, Feng J, Chen S, Xu X, Tang Y, Wang Y.   +7 more
europepmc   +1 more source