261 research outputs found

    Music Education Program Linked to Social-Emotional Advantage for Students Facing Economic Hardship

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    Purpose School success depends on the ability to regulate emotions, behavior, and attention in the service of learning. This study examines the impact of MacPhail’s Learning with Music Program on the development of self-regulatory skills for young children at risk via economic hardship. Design In Learning with Music, MacPhail music teachers visit partner preschool classrooms and model music integration for early childhood educators. We used a two-year, quasi-experimental waitlist control design to examine the impact of Learning with Music on children’s development of self-regulatory skills. In Year 1, both participating preschool programs received their preschool programming as usual, and in Year 2, both participating preschool programs additionally received Learning with Music. Method Ethical standards were followed, and all procedures were approved by the appropriate institutional review boards. The study included 234 preschool children, 104 of whom received Learning with Music and 130 of whom did not. All children were from families facing economic hardship, with income-to-needs ratios less than 2X the federal poverty threshold. Measures included a parent demographic interview and standardized child assessments of the inhibitory control aspect of self-regulation completed at the start, middle, and end of the year. Results Analyses involved latent growth curve modeling to examine initial status and growth in child inhibitory control as a function of receipt of the music program. Learning with Music was associated with greater growth in inhibitory control. The study highlights opportunities for using music to ameliorate negative effects of poverty and promote self-regulatory skill development for young children

    Learning with Music: Early Childhood Program Associated with Advantage in Self-Regulation

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    Purpose School success depends on the ability to regulate emotions, behavior, and attention in the service of learning. This study examines the impact of MacPhail’s Learning with Music Program on the development of self-regulatory skills for young children at risk via economic hardship. Design In Learning with Music, MacPhail music teachers visit partner preschool classrooms and model music integration for early childhood educators. We used a two-year, quasi-experimental waitlist control design to examine the impact of Learning with Music on children’s development of self-regulatory skills. In Year 1, both participating preschool programs received their preschool programming as usual, and in Year 2, both participating preschool programs additionally received Learning with Music. Method Ethical standards were followed, and all procedures were approved by the appropriate institutional review boards. The study included 234 preschool children, 104 of whom received Learning with Music and 130 of whom did not. All children were from families facing economic hardship, with income-to-needs ratios less than 2X the federal poverty threshold. Measures included a parent demographic interview and standardized child assessments of the inhibitory control aspect of self-regulation completed at the start, middle, and end of the year. Results Analyses involved latent growth curve modeling to examine initial status and growth in child inhibitory control as a function of receipt of the music program. Learning with Music was associated with greater growth in inhibitory control. The study highlights opportunities for using music to ameliorate negative effects of poverty and promote self-regulatory skill development for young children

    Existing benchmark systems for assessing global warming potential of buildings – Analysis of IEA EBC Annex 72 cases

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    Life cycle assessment (LCA) is increasingly being used as a tool by the building industry and actors to assess the global warming potential (GWP) of building activities. In several countries, life cycle based requirements on GWP are currently being incorporated into building regulations. After the establishment of general calculation rules for building LCA, a crucial next step is to evaluate the performance of the specific building design. For this, reference values or benchmarks are needed, but there are several approaches to defining these. This study presents an overview of existing benchmark systems documented in seventeen cases from the IEA EBC Annex 72 project on LCA of buildings. The study characterizes their different types of methodological background and displays the reported values. Full life cycle target values for residential and non-residential buildings are found around 10-20 kg CO2_2e/m2^2/y, whereas reference values are found between 20-80 kg CO2_2e/m2^2/y. Possible embodied target- and reference values are found between 1-12 kg CO2_2e/m2^2/y for both residential and non-residential buildings. Benchmark stakeholders can use the insights from this study to understand the justifications of the background methodological choices and to gain an overview of the level of GWP performance across benchmark systems

    Existing benchmark systems for assessing global warming potential of buildings – Analysis of IEA EBC Annex 72 cases

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    Life cycle assessment (LCA) is increasingly being used as a tool by the building industry and actors to assess the global warming potential (GWP) of building activities. In several countries, life cycle based requirements on GWP are currently being incorporated into building regulations. After the establishment of general calculation rules for building LCA, a crucial next step is to evaluate the performance of the specific building design. For this, reference values or benchmarks are needed, but there are several approaches to defining these. This study presents an overview of existing benchmark systems documented in seventeen cases from the IEA EBC Annex 72 project on LCA of buildings. The study characterizes their different types of methodological background and displays the reported values. Full life cycle target values for residential and non-residential buildings are found around 10-20 kg CO2e/m2/y, whereas reference values are found between 20-80 kg CO2e/m2/y. Possible embodied target- and reference values are found between 1-12 kg CO2e/m2/y for both residential and non-residential buildings. Benchmark stakeholders can use the insights from this study to understand the justifications of the background methodological choices and to gain an overview of the level of GWP performance across benchmark systems.publishedVersio

    Gender specific factors associated with having stopped smoking among in-school adolescents in Ukraine: results from the Global Youth Tobacco Survey 2005

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    <p>Abstract</p> <p>Background</p> <p>The prevalence of cigarette smoking in Ukraine is different between genders and is among the highest in the world. There is need to identify gender-specific factors that are associated with having stopped smoking among adolescents.</p> <p>Findings</p> <p>We used data from the Ukraine Global Youth Tobacco Survey 2005. We carried out a backward stepwise logistic regression analysis with having stopped smoking as the outcome.</p> <p>Altogether, 2800 adolescents reported having ever smoked cigarettes. Overall 64.1% (63.4% male, and 65.5% female) adolescents reported having stopped smoking. Male adolescents who stated that smoking decreases body weight were 25% more likely, while female adolescents were 9% less likely to stop smoking. While male adolescents who received support on how to stop smoking from a family member were 7% less likely, female adolescents were 60% more likely to stop smoking. Furthermore, while male adolescents who received a lecture on the harmful effects of smoking were 10% less likely, female adolescents were 9% more likely to stop smoking. Finally both male and female adolescents who were sure or most probably that they would not smoke a cigarette offered to them by their best friends were more likely, and those adolescents who were sure that smoking is harmful to health were less likely to stop smoking.</p> <p>Conclusions</p> <p>Our study has identified some factors that are associated with having quit smoking that are gender-specific. We believe public health programs targeting adolescent smoking should consider these factors in their design and implementation of gender sensitive interventions.</p

    SUMO modification of cell surface Kv2.1 potassium channels regulates the activity of rat hippocampal neurons

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    Voltage-gated Kv2.1 potassium channels are important in the brain for determining activity-dependent excitability. Small ubiquitin-like modifier proteins (SUMOs) regulate function through reversible, enzyme-mediated conjugation to target lysine(s). Here, sumoylation of Kv2.1 in hippocampal neurons is shown to regulate firing by shifting the half-maximal activation voltage (V1/2) of channels up to 35 mV. Native SUMO and Kv2.1 are shown to interact within and outside channel clusters at the neuronal surface. Studies of single, heterologously expressed Kv2.1 channels show that only K470 is sumoylated. The channels have four subunits, but no more than two non-adjacent subunits carry SUMO concurrently. SUMO on one site shifts V1/2 by 15 mV, whereas sumoylation of two sites produces a full response. Thus, the SUMO pathway regulates neuronal excitability via Kv2.1 in a direct and graded manner

    Comparison of the greenhouse gas emissions of a high-rise residential building assessed with different national LCA approaches – IEA EBC Annex 72

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    Introduction: The international research project IEA EBC Annex 72 investigates the life cycle related environmental impacts caused by buildings. The project aims inter alia to harmonise LCA approaches on buildings. Methods: To identify major commonalities and discrepancies among national LCA approaches, reference buildings were defined to present and compare the national approaches. A residential high-rise building located in Tianjin, China, was selected as one of the reference buildings. The main construction elements are reinforced concrete shear walls, beams and floor slabs. The building has an energy reference area of 4566 m2 and an operational heating energy demand of 250 MJ/m2a. An expert team provided information on the quantities of building materials and elements required for the construction, established a BIM model and quantified the operational energy demand. Results: The greenhouse gas emissions and environmental impacts of the building were quantified using 17 country-specific national assessment methods and LCA databases. Comparisons of the results are shown on the level of building elements as well as the complete life cycle of the building. Conclusions: The results of these assessments show that the main differences lie in the LCA background data used, the scope of the assessment and the reference study period applied. Despite the variability in the greenhouse gas emissions determined with the 17 national methods, the individual results are relevant in the respective national context of the method, data, tool and benchmark used. It is important that environmental benchmarks correspond to the particular LCA approach and database of a country in which the benchmark is applied. Furthermore, the results imply to include building technologies as their contribution to the overall environmental impacts is not negligible. Grant support: The authors thank the IEA for its organizational support and the funding organizations in the participating countries for their financial support.IEA -International Energy Agency(undefined

    Histone Deacetylase Inhibitors Impair the Elimination of HIV-Infected Cells by Cytotoxic T-Lymphocytes

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    Resting memory CD4+ T-cells harboring latent HIV proviruses represent a critical barrier to viral eradication. Histone deacetylase inhibitors (HDACis), such as suberanilohydroxamic acid (SAHA), romidepsin, and panobinostat have been shown to induce HIV expression in these resting cells. Recently, it has been demonstrated that the low levels of viral gene expression induced by a candidate HDACi may be insufficient to cause the death of infected cells by viral cytopathic effects, necessitating their elimination by immune effectors, such as cytotoxic T-lymphocytes (CTL). Here, we study the impact of three HDACis in clinical development on T-cell effector functions. We report two modes of HDACi-induced functional impairment: i) the rapid suppression of cytokine production from viable T-cells induced by all three HDACis ii) the selective death of activated T-cells occurring at later time-points following transient exposures to romidepsin or, to a lesser extent, panobinostat. As a net result of these factors, HDACis impaired CTL-mediated IFN-Îł production, as well as the elimination of HIV-infected or peptide-pulsed target cells, both in liquid culture and in collagen matrices. Romidepsin exerted greater inhibition of antiviral function than SAHA or panobinostat over the dose ranges tested. These data suggest that treatment with HDACis to mobilize the latent reservoir could have unintended negative impacts on the effector functions of CTL. This could influence the effectiveness of HDACi-based eradication strategies, by impairing elimination of infected cells, and is a critical consideration for trials where therapeutic interruptions are being contemplated, given the importance of CTL in containing rebound viremia
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