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杨新民, 张晓民, 熊鸿燕, 杨胜元
中国心理卫生杂志,2004,18(6):411~413,-0001,():
-1年11月30日
目的:调查某部海训士兵的抑郁状况及其影响因素。方法:采用zung抑郁自评量表(SDS)、及艾森克人格问卷(EPQ),对某海训演习部队1107人进行测查;应用自拟的“抑郁危险因素调查表”调查影响抑郁的危险因素。结果:本组调查SDS得分大于0.6的为25.04%;海训士兵的N分高于中国军人常模,且有显著性差异(11.93±5.17;10.60±4.83,t=2.98,P<0.05);Lngistic回归分析揭示,神经质、入睡困难、是否在海训过程有伤病史、是否经常感觉有不安的问题、内外向、文化程度、入伍前生活环境、饥饿感、想发牢骚、母亲文化程度、海训中是否情绪激动、幼年是否和父母一起生活系影响抑郁发生的主要危险因素(P<0 05-0.01)。结论:本组调查对象抑郁总体患病率高于全军人群,与应激状态明显相关。个性人格、训练因素、身体不适、心理压力和文化程度可能是此人群抑郁发生的促进因素。
精神卫生 横断面研究 抑郁 陆军 SDS EPQ
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【期刊论文】Huard type second-order converse duality for nonlinear programming✩
杨新民, X.M. Yanga, ∗, X.Q. Yang b, K.L. Teo b
Applied Mathematics Letters 18(2005)205-208,-0001,():
-1年11月30日
In this paper, under appropriate conditions, we establish that (i) if the gradient of a function is (strictly) pseudomonotone, then the function is (strictly) pseudo-invex; (ii) if the gradient of a function is quasi-monotone, then the function is quasi-invex; and (iii) if the gradient of a function is strong pseudo-monotone, then the function is strong pseudo-invex.
Fritz John second order dual model, Huard type converse duality, Nonlinear programming
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【期刊论文】Continuous Optimization Criteria for generalized invex monotonicities ✩
杨新民, X.M. Yang a, *, X.Q. Yang b, K.L. Teo b
European Journal of Operational Research 164(2005)115-119,-0001,():
-1年11月30日
In this paper, under appropriate conditions, we establish that(i)if the gradient of a function is(strictly)pseudomonotone, then the function is(strictly)pseudo-invex;(ii)if the gradient of a function is quasi-monotone, then the function is quasi-invex;and(iii)if the gradient of a function is strong pseudo-monotone, then the function is strong pseudo-invex.
Generalized invex monotonicity, Generalized invex functions, Mathematical programming
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杨新民, Xin Min Yang a, ∗, Kok Lay Teo b, Xiao Qi Yang b
J.Math.Anal.Appl.297(2004)48-55,-0001,():
-1年11月30日
In this paper, a class of generalized convexity is introduced and a unified higher-order dual model for nondifferentiable multiobjective programs is described, where every component of the objective function contains a term involving the support function of a compact convex set.Weak duality theorems are established under generalized convexity conditions.The well-known case of the support function in the form of square root of a positive semidefinite quadratic form and other special cases can be readily derived from our results.
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【期刊论文】Some Remarks on the Minty Vector Variational Inequality1
杨新民, X. M. YANG, X. Q. YANG, AND K. L. TEO
JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS Vol.121 No.1(2004)193-201,-0001,():
-1年11月30日
In this paper, we establish some relations between a Minty vector variational inequality and a vector optimization problem underpseudoconvexity or pseudomonotonicity, respectively.Our results generalizethose of Ref.1.
Vector variational inequalities,, vector optimization problems,, pseudoconvexity,, pseudomonotonicity.,
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