INTRODUCTION High retention in care is paramount to reduce vertical human immunodeficiency virus (HIV) infections in prevention of mother-to-child transmission (PMTCT) programmes but remains low in many sub-Saharan African countries. We aimed to assess the effects of community health worker-based defaulter tracing (CHW-DT) on retention in care and mother-to-child HIV transmission, an innovative...

Over the years, achieving efficient electroluminescence (EL) while simultaneously having low light amplification thresholds under optical excitation has been key to progression toward long-thought objective of electrically pumped organic lasers. While significant progress in this regard made for semiconductors emitting blue–green region visible spectrum, laser dyes with low-energy emission (>60...

This study is a quantitative assessment of the luminous energy transmitted through different translucent fiber posts. After embedding the posts in black resin, the blocks were submitted to sequential cuts in a precision machine, and depths of 16 mm, 12 mm, 8 mm, and 4 mm were assessed for light transmission with a digital photometer. The quantitative analysis showed significant differences betw...

Tailings from inactive uranium mine sites represent a potential secondary source of rare earth elements (REEs). For this study, two tailings (DT and RAT) restored in Ontario, Canada, were used. Bioleaching experiments conducted with mix native sulfur- iron-oxidizing bacteria to test the solubilization REEs, U Th at different temperatures (20, 30 40 °C). The selective recovery REEs bioleaching s...

Young seedlings of the conifer Norway spruce exhibit short day (SD)-induced cessation of apical growth and bud set. Although different, constant temperatures under SD are known to modulate timing of bud set and depth of dormancy with development of deeper dormancy under higher compared to lower temperature, systematic studies of effects of alternating day (DT) and night temperatures (NT) are li...

Title of Document: BIOBEHAVIORAL MECHANISMS UNDERLYING EMOTIONALITY IN ANTISOCIAL PERSONALITY DISORDER AND THE ROLE OF PSYCHOPATHIC TRAITS Marsha Nneka Sargeant, Master of Science 2008 Directed By: Stacey B. Daughters, Ph.D., Assistant Professor (Research), Center for Addictions Personality and Emotion Research The distinguishing features of Antisocial Personality Disorder (ASPD) include a gene...

BACKGROUND Physical activity reduces the incidence and progression of cognitive impairment. Cognitive-motor dual-task training, which requires dividing attention between cognitive tasks and exercise, may improve various cognitive domains; therefore, we examined the effect of dual-task training on the executive functions and on plasma amyloid β peptide (Aβ) 42/40 ratio, a potent biomarker of Alz...

effect of different photoperiodic regimes was evaluated on growth performance and survival rate of the beluga ( huso huso ) prelarvae and larvae. newly hatched prelarvae were stored in 5 round fiberglass 500‑l tank with different photoperiod (24l:00d, 18l:06d, 12l:12d, 06l:18 d, 00l:24d) till 50 days post hatch with three replicates. light intensity was 200 lux during the experiment. feeding wa...