BACKGROUND Periodic surveys of research directors (RDs) in emergency medicine (EM) are useful to assess the specialty's development and evolution of the RD role. OBJECTIVES To assess associations between characteristics and research productivity of RDs and EM programs. METHODS A survey of EM RDs was developed using the nominal group technique and pilot tested. RDs or surrogate respondents a...

This paper explores bias in the estimation of sampling variance in Respondent Driven Sampling (RDS). Prior methodological work on RDS has focused on its problematic assumptions and the biases and inefficiencies of its estimators of the population mean. Nonetheless, researchers have given only slight attention to the topic of estimating sampling variance in RDS, despite the importance of varianc...

Particle grain size is an important indicator for the variability in physical characteristics and pollutants composition of road-deposited sediments (RDS). Quantitative assessment of the grain-size variability in RDS amount, metal concentration, metal load and GSFLoad is essential to elimination of the uncertainty it causes in estimation of RDS emission load and formulation of control strategie...

In homozygous rds mutant mice the photoreceptor cells lack outer segment discs and slowly degenerate. In the heterozygotes the receptor cells develop abnormal outer segments and show altered disc shedding properties as revealed by the pigment epithelial phagosome content. The receptor cells also degenerate at a slower rate than in the homozygotes. The nature of the interaction resulting in dilu...

AIMS AND OBJECTIVES: Suck development is a challenging hurdle for preterm infants who endure an extensive oxygen history due to respiratory distress syndrome (RDS). The fine structure of the non-nutritive suck (NNS) was studied in preterm infants according to RDS severity. DESIGN AND METHODS: Recordings of NNS were completed cribside in the neonatal intensive care unit (NICU) in 55 preterm infa...

In 2010, FUJIFILM introduced “ETERNA-RDS” that is a black and white film used for archiving from color digital masters. ETERNA-RDS is the first film stock in the world designed especially for a digital separation workflow using a film recorder. ETERNA-RDS offers a significant improvement over conventional non-specific separation film stock, accurate gradation linearity, improved granularity, su...

background and aim: respiratory distress syndrome (rds) is a lung disorder, which can damage the auditory brainstem pathways because of hypoxia. the aim of this study was to evaluate brainstem auditory electrophysiology changes of neonates with rds. methods: fifteen term neonates who suffered from rds, 15 term neonates admitted in the nicu for any reason except rds, and 15 normal term neonates ...

BACKGROUND Respondent Driven Sampling (RDS) is a network or chain sampling method designed to access individuals from hard-to-reach populations such as people who inject drugs (PWID). RDS surveys are used to monitor behaviour and infection occurence over time; these estimations require adjusting to account for over-sampling of individuals with many contacts. Adjustment is done based on individu...

The nuclear receptor NR2E3 promotes expression of rod photoreceptor genes while repressing cone genes. Mice lacking NR2E3 (Nr2e3(rd7/rd7) referred to here as rd7) are a model for enhanced S-cone syndrome, a disease associated with increased sensitivity to blue light and night blindness. Rd7 retinas have reduced levels of the outer segment (OS) structural protein retinal degeneration slow (RDS)....