Using rotifer-algal microcosms, we tracked rapid evolution resulting from temporally changing natural selection in ecological predator-prey dynamics. We previously demonstrated that predator-prey oscillations in rotifer-algal laboratory microcosms are qualitatively altered by the presence of genetic variation within the prey. In that study, changes in algal gene frequencies were inferred from t...

BACKGROUND Vitamin-D deficiency has been linked with impaired development in animal studies; however, the evidence from human studies is scanty. Evidence as to whether vitamin-D deficiency during early childhood affects growth is also limited and conflicting. We examined the extent to which vitamin-D deficiency (<10 ng/ml) is associated with neurodevelopment and physical growth in young childre...

AIM In 2005, we changed our minimally invasive departmental policy for infants born before 26 weeks of gestation to a proactive approach. This included structured guidelines as well as intubation and surfactant in the delivery room, if the parents agreed. The aim of this study was to evaluate the effect of this change of policy. METHOD We compared the Ages and Stages Questionnaire (ASQ) score...

Background. Normally one habituates rapidly to steady, faint sensations. People with sensory hypersensitivity (SH), by contrast, continue to attend to such stimuli and find them noxious. SH is common in Tourette syndrome (TS) and autism, and methods to quantify SH may lead to better understanding of these disorders. In an attempt to objectively quantify SH severity, the authors tested whether a...

AIM To describe the characteristics, developmental status and severity of head shape deformation in infants presenting to a plagiocephaly clinic. METHODS Head shape was measured and neck function assessed in 287 consecutive infants presenting to a plagiocephaly outpatient clinic. Information was obtained on demographic and obstetric factors, plagiocephaly history and current positioning strat...

Elméleti háttér Bowlby (1982/1969) a viselkedési rendszereket univerzális, veleszületett motivációs rendszereknek írja le, amelyek természetes szelekcióval alakultak ki, és túlélési és/vagy szaporodási esélyeket növelő konkrét evolúciós célokat szolgálnak. Az emberi elme számos rendszert foglal magában, ösztönös viselkedést közvetítenek olyan funkcionálisan elkülönülő területeken, mint kötődés,...

This table summarizes information useful in the interpretation of drugs-of-abuse assays. It was originally developed by the late Daniel M. Baer, MD, and updated by Richard A. Paulson, MT(ASCP), supervisor of Chemistry and Toxicology, VA Medical Center, Portland, OR. The table has been updated annually for CLR since 2001-2002 by Robert H. Williams, PhD, D(ABCC), F(ACB), MT(ASCP), CQA(ASQ), clini...

The JQT Editorial Review Board instituted the Lloyd S. Nelson Award recognizing the article in the most recent volume, beginning with Volume 35 (2003), having the "greatest immediate impact to practitioners." The Statistics Division of ASQ, headed by Chair Davis Balestracci, carefully studied the articles appearing in last year’s issues. We greatly appreciate the dedication and effort of Davis ...