A surrogate constraint is an inequality implied by the constraints of an integ~r program, and designed to capture useful information that cannot be extra~ted from the parent constraints individually but is nevertheless a consequepce of their conjunction. The use of such constraints as originally propo~ed by the author has recently been extended in an important way by EGON! BALAS and ARTHUR GEOF...

tm purpose of this study is 10 determine the effect of mothers' knowledge on the treatment quality of their   children immunization in health centers of the ministry of health , and medical education in tehran in 1994 .   the samples were 150 mothers who went to health centers to immunize their children .   the subjects were selected randomly and data - gathering was accomplished through a...

how to cite this article: hasan tehrani t, haghighi m, bazmamoun h. effects of stress on mothers of hospitalized children in a hospital in iran. iran j child neurol autumn 2012;6(4):39-45. abstract objective hospitalization of a child can cause severe anxiety and stress in the parents, especially for the mother. this stress consequently affects the treatment course of the child. hereby, we inve...

how to cite this article: soltanifar a, ashrafzadeh f, mohareri f, mokhber n. depression and anxiety in iranian mothers ofchildren with epilepsy. iranian journal of child neurology 2012;6(1):29-34.   objective epilepsy is a common neurological disorder in children. parents with epileptic children have many psychosocial care needs. so the main goal of this study was to evaluate depression and an...

The diffi culty and expense of having a baby through surrogacy in the West is driving thousands of couples to India where a lack of red tape and highquality medical care means that the process is easy, cheap, and hassle-free. Commercial surrogacy was legalised in India in 2002, as part of the country’s drive to promote medical tourism, an industry that the Confederation of Indian Industry predi...

objectives: the global prevalence of lifetime depression is very high among women in the world–approximately 12-25 percent. the global prevalence of disability is also very high and the estimated figure for the end of 2000 was put at around 300 million. the child’s disability stresses the mother the most, and this stress shows itself in the form of depression, and causes the mother’s performanc...

August 18, 2017 Type Package Title Evaluation of Surrogate Endpoints in Clinical Trials Version 0.4 Date 2017-08-18 Author Wim Van der Elst, Paul Meyvisch, Ariel Alonso, Hannah M. Ensor, Christopher J. Weir & Geert Molenberghs Maintainer Wim Van der Elst Description In a clinical trial, it frequently occurs that the most credible outcome to evaluate the effectiveness ...

Before we apply nonlinear techniques, for example those inspired by chaos theory, to dynamical phenomena occurring in nature, it is necessary to rst ask if the use of such advanced techniques is justiied by the data. While many processes in nature seem very unlikely a priori to be linear, the possible nonlinear nature might not be evident in speciic aspects of their dynamics. The method of surr...

Robust optimization problems, which have uncertain data, are considered. We prove surrogate duality theorems for robust quasiconvex optimization problems and surrogate min-max duality theorems for robust convex optimization problems. We give necessary and sufficient constraint qualifications for surrogate duality and surrogate min-max duality, and show some examples at which such duality result...