BACKGROUND In China, children under 18 years old who are left at rural residences for at least 6 months by either one or both of their parents migrating to work in cities are called "left-behind children (LBC)". Due to restricted family support, they are at a greater risk of developing depressive symptoms than non-left-behind children (NLBC). The objective of this study is to explore how depres...

OBJECTIVE To investigate the prospective associations between dietary patterns in childhood and CVD risk in adolescence. DESIGN Prospective cohort study. Exposures were dietary patterns at age 7, 10 and 13 years derived by cluster analysis. Outcomes were physiological and biochemical cardiovascular risk markers. SETTING Avon Longitudinal Study of Parents and Children (ALSPAC), UK. SUBJECT...

in 2006, the American Academy of Pediatrics (AAP) formally recommended the use of developmental surveillance at each well child visit and the use of standardized developmental screening tools at nine, 18, and 30 (or 24) month visits. In 2007 the AAP recommended the incorporation of an autism-specific screening at the 18 and 24-month visits. In 2006 the Rhode Island Department of Health conducte...

Locus of control is one of the most widely studied concepts in the history of personality psychology. In spite of its popularity and its associations with numerous relevant outcomes, the ability of locus of control to predict future behaviors involving parenting effectiveness has been under researched. The few parent locus of control children's outcome studies are characterized by cross-section...

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...

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...

Statistics show that one in every six couples are currently infertile. Due to new artificial reproductive techniques, infertile have a whole range of possibilities become parents. Surrogacy tourism is type medical which with infertility travel other countries rent wombs surrogate woman. At present, surrogacy multi-billion-dollar industry. One the main reasons for not legal some countries. It ap...

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...