University of North Carolina at Greensboro

About: University of North Carolina at Greensboro is a education organization based out in Greensboro, North Carolina, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 5481 authors who have published 13715 publications receiving 456239 citations. The organization is also known as: UNCG & UNC Greensboro.

Still Misused After All These Years? A Reevaluation of the Uses of Bronfenbrenner's Bioecological Theory of Human Development

Abstract: A theoretical review published in 2009 revealed that scholars who stated that their research was based on Urie Bronfenbrenner's bioecological theory of human development rarely used it appropriately. To what extent has the situation changed since then? We used the same methods to identify relevant articles as had been used in the 2009 article and found 20 publications whose authors explicitly claimed that Bronfenbrenner provided the theoretical foundation for their study. Although 18 of those publications included citations to the mature (mid-1990s) version of Bronfenbrenner's theory, only two appropriately described, tested, and evaluated the four major concepts of Bronfenbrenner's theory—proximal processes, person characteristics, context, and time. Failure either to correctly describe the theory or to critically test its central concepts poses significant problems for the future of family studies and developmental science. We discuss potential ways to improve this situation through metatheoretical, methodological, and pedagogical reflections.

Prenatal experience with low-frequency maternal-voice sounds influence neonatal perception of maternal voice samples

Abstract: By sucking on a nonnutritive nipple in the presence of one discriminative stimulus, newborns were reinforced with a low-pass filtered tape recording of their mothers' voices. Sucking in the presence of a different discriminative stimulus was reinforced with unfiltered maternal-voice recordings. Filtered versions simulated maternal-voice sounds that were available before birth and unfiltered versions simulated maternal-voice sounds available after birth. Newborns in the control group could be reinforced with the same stimuli in the same way, but the voices were unfamiliar to them. Infants hearing their mothers' voices had no preference for either version, but infants hearing the unfamiliar voices preferred the unfiltered version. The difference in the between-groups responsiveness to the low-pass voice samples is consistent with the hypothesis that prenatal experience with low-frequency characteristics of maternal voices influences early postnatal perception of maternal voices.

Conjugated linoleic acid evokes de‐lipidation through the regulation of genes controlling lipid metabolism in adipose and liver tissue

Abstract: Conjugated linoleic acid (CLA) is a unique lipid that elicits dramatic reductions in adiposity in several animal models when included at < or = 1% of the diet Despite a flurry of investigations, the precise mechanisms by which conjugated linoleic acid elicits its dramatic effects in adipose tissue and liver are still largely unknown In vivo and in vitro analyses of physiological modifications imparted by conjugated linoleic acid on protein and gene expression suggest that conjugated linoleic acid exerts its de-lipidating effects by modulating energy expenditure, apoptosis, fatty acid oxidation, lipolysis, stromal vascular cell differentiation and lipogenesis The purpose of this review shall be to examine the recent advances and insights into conjugated linoleic acid's effects on obesity and lipid metabolism, specifically focused on changes in gene expression and physiology of liver and adipose tissue

Effects of Computer Programming on Cognitive Outcomes: A Meta-Analysis

Abstract: Although claims regarding the cognitive benefits of computer programming have been made, results from existing empirical studies are conflicting. To make a more reliable conclusion on this issue, a meta-analysis was performed to synthesize existing research concerning the effects of computer programming on cognitive outcomes. Sixty-five studies were located from three sources, and their quantitative data were transformed into a common scale—Effect Size. The analysis showed that 58 or 89 percent of the study-weighted effect sizes were positive and favored the computer programming group over the control groups. The overall grand mean of the study-weighted effect size for all 432 comparisons was 0.41; this suggests that students having computer programming experiences scored about sixteen percentile points higher on various cognitive-ability tests than students who did not have programming experiences. In addition, four of the seven coded variables selected for this study (i.e., type of publication, grade le...