We applied TETRAD II, a causal discovery program developed in Carnegie Mellon University’s Department of Philosophy, to a database containing information on 204 U.S. colleges, collected by the US News and World Report magazine for the purpose of college ranking. Our analysis focuses on possible causes of low freshmen retention in U.S. colleges. TETRAD II finds a set of causal structures that ar...

This experiment was carried out to evaluate the effect of specific gravity (SG) and particle size (PS) of Chromium-mordanated alfalfa neutral detergent fiber (NDF) markers on estimation of particulate rumen turnover. Thirty-two multiparous, mid lactation Holstein dairy cows (body weight=654±24 kg) were allotted to a completely randomized design experiment with two replications in a 4×4 factoria...

Background: Methadone maintenance therapy (MMT) was started as a pilot project in Malaysia in 2005, and many individuals have benefited from it. Aim: This study aimed to examine the retention rate among patients enrolled in a tertiary hospital MMT programme in Malaysia, as well as factors predicting retention and mortality among these patients. Methods: A total of 164 patients were enrolled in ...

The aim of this study was to investigate retention of composite fissure sealant polymerized with standard and soft-start technique after a three year clinical trial. One hundred teeth were divided into two groups (A&B) of teeth and sealed with composite material (Visioseal, 3M Espe) using split mouth design. Sealants were polymerized using standard (Group A) and soft-start (Group B) techniques ...

conclusions the major risk factor of hcv infection was injection drug use. the patient’s awareness of his or her hcv status had a minor effect in reduction of illicit drug use and improvement in mmt retention. therefore, adequate counseling is necessary for drug users in mmt clinics in xi’an. background hepatitis c virus (hcv) infection rates in drug users vary among different regions of china....

PURPOSE Individuals receiving postacute care in skilled nursing facilities often require complex, skilled care provided by licensed nurses. It is believed that a stable set of nursing personnel is more likely to deliver better care. The purpose of this study was to determine the relationships among licensed nurse retention, turnover, and a 30-day rehospitalization rate in nursing homes (NHs). ...

Introduction: Retention of I-131 in the body of patients with differentiated thyroid carcinoma (DTC) has a direct effect on therapeutic outcome of radioiodine therapy. There are several factors that may influence retention time of radioiodine in the body of these patients. In this study we are going to assess effects of administered radioiodine activity, serum thyroid stimulati...