Obesity‐Related Hormones in Low‐Income Preschool‐Age Children: Implications for School Readiness

Mechanisms underlying socioeconomic disparities in school readiness and health outcomes, particularly obesity, among preschool‐aged children are complex and poorly understood. Obesity can induce changes in proteins in the circulation that contribute to the negative impact of obesity on health; such changes may relate to cognitive and emotion regulation skills important for school readiness. We investigated obesity‐related hormones, body mass index (BMI), and school readiness in a pilot study of low‐income preschoolers attending Head Start (participating in a larger parent study). We found that the adipokine leptin was related to preschoolers' BMI z‐score, the appetite‐regulating hormones ghrelin and glucagon‐like peptide 1 (GLP‐1), and pro‐inflammatory cytokines typically associated with early life stress; and that some of these obesity‐related biomarkers were in turn related to emotion regulation. Future work should evaluate how obesity may affect multiple domains of development, and consider modeling common physiological pathways related to stress, health, and school readiness.     

Primacy Effects of The Daily Show and National TV News Viewing: Young Viewers,Political Gratifications,and Internal Political Self-Efficacy

This study examines program ordering effects derived from viewing CNN television news relative to The Daily Show on the political gratifications associated with both types of information sources. Internal political self-efficacy is assessed as an individual-difference moderator. Main primacy effects are found on the gratifications associated with both national television news viewing and The Daily Show viewing. However, The Daily Show primacy effect on the political gratifications associated with national television news viewing was isolated among those participants who retain low internal political self-efficacy. Ramifications for these findings are outlined and future lines of research are summarized.     

Enhancing attachment organization among maltreated children: results of a randomized clinical trial

Young children who have experienced early adversity are at risk for developing disorganized attachments. The efficacy of Attachment and Biobehavioral Catch-up (ABC), an intervention targeting nurturing care among parents identified as being at risk for neglecting their young children, was evaluated through a randomized clinical trial. Attachment quality was assessed in the Strange Situation for 120 children between 11.7 and 31.9 months of age (M = 19.1, SD = 5.5). Children in the ABC intervention showed significantly lower rates of disorganized attachment (32%) and higher rates of secure attachment (52%) relative to the control intervention (57% and 33%, respectively). These results support the efficacy of the ABC intervention in enhancing attachment quality among parents at high risk for maltreatment.     

A learning progression for water in socio‐ecological systems

Providing model‐based accounts (explanations and predictions) of water and substances in water moving through environmental systems is an important practice for environmental science literacy and necessary for citizens confronting global and local water quantity and quality issues. In this article we present a learning progression for water in environmental systems for students in elementary through high school grades. We investigated student accounts of water and substances in water moving through atmospheric, surface, and soil/groundwater systems, including human‐engineered components of these systems. Using an iterative process of model design, assessment, and interpretation, we identified four levels of achievement in student reasoning. Levels 1 and 2 force‐dynamic accounts explain movement of water as interactions between natural tendencies of water and countervailing powers. Level 3 incomplete school science accounts put events in order and trace water and substance along multiple pathways that include hidden and invisible components. Only Level 4 qualitative model‐based accounts include driving forces and constraining factors to explain or predict where water and substances in water move in given situations. The majority of high school students on average provide accounts between levels 2 and 3. We discuss the significance of these results for citizen participation in addressing common water issues. We end with suggestions for how the water learning progression can be used to inform changes to curricula, assessment, and instruction to support students in achieving level 4 performance. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 843–868, 2012     

DRM as Sociotechnical Systems

This article is an assessment of virtual organization, a new paradigm of organization and management. Like most new ideas, virtual organization is not entirely new—some of its components are recognizable from earlier concepts of organization. However, the integration of all the components does signal something new and revolutionary. Its revolutionary character stems from the principle of switching (i.e., shifting between different means for satisfying a need), which calls upon management to maintain a logical separation between abstract requirements and the concrete means for their satisfaction. Advanced information technology makes it possible to realize virtual organization in practice, and the paradigm is clearly manifest in the operations of some innovative firms. The economic and social significance of virtual organization in the future is likely to be comparable to that of the factory in an earlier period. Properly implemented, virtual organization may deliver increases in efficiency and effectiveness on an unprecedented scale. At the same time, it may stimulate social changes at least as far‐reaching as those associated with the industrial revolution. This article provides a precise definition of virtual organization and undertakes to justify these claims about the new paradigm.     

Client Pretreatment Characteristics as Predictors of Outcome in Brief Therapy for Bulimia

An overview for college counselors of the literature on bulimia treatment outcomes is presented for purposes of screening, treatment, and referral. Pretreatment characteristics that seem amenable to success in brief therapy are outlined, as are those that do not lead to a positive outcome.     

Exploring the nature of associations between educators’ knowledge and their emergent literacy classroom practices

Reading and Writing - Educators’ content knowledge is considered a key determinant of classroom practices and thus children’s learning. In this study, we examine the nature of...