2,939 research outputs found

    A Qualitative Phenomenological Exploration of Teachers’ Experience with Nutrition Education

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    Background: Nutrition education delivered by classroom teachers has become a popular intervention designed to combat childhood obesity. However, few qualitative studies have explored nutrition education with teachers. Purpose: The purpose of this study was to explore how elementary teachers describe their experience with nutrition education. Methods: A qualitative phenomenological approach was used. Semistructured interviews, observations, and document analysis were conducted with 10 teachers who delivered nutrition education in their classrooms. Inductive coding was used to determine invariant constituents, reduce constituents to categories, and cluster categories into themes. Reliability and validity were accomplished through intercoder agreement, audio recording, triangulation, bracketing, and member checking. Results: Results identified 5 core themes related to roles teachers play in nutrition education, the importance placed upon nutrition, motivation for supplementary activities, barriers, and a triadic relationship between students, teachers, and curriculum. Discussion: Findings reveal interactions within the nutrition education experience in which teachers balance barriers with their value of nutrition education and motivation to help students make healthy choices. Translation to Health Education Practice: Health educators should work with classroom teachers at the program design, implementation, and evaluation stages of curriculum development to better address needs and facilitate the delivery of high-quality nutrition education for students

    A Qualitative Phenomenological Exploration of Teachers’ Experience with Nutrition Education

    Get PDF
    Background: Nutrition education delivered by classroom teachers has become a popular intervention designed to combat childhood obesity. However, few qualitative studies have explored nutrition education with teachers. Purpose: The purpose of this study was to explore how elementary teachers describe their experience with nutrition education. Methods: A qualitative phenomenological approach was used. Semistructured interviews, observations, and document analysis were conducted with 10 teachers who delivered nutrition education in their classrooms. Inductive coding was used to determine invariant constituents, reduce constituents to categories, and cluster categories into themes. Reliability and validity were accomplished through intercoder agreement, audio recording, triangulation, bracketing, and member checking. Results: Results identified 5 core themes related to roles teachers play in nutrition education, the importance placed upon nutrition, motivation for supplementary activities, barriers, and a triadic relationship between students, teachers, and curriculum. Discussion: Findings reveal interactions within the nutrition education experience in which teachers balance barriers with their value of nutrition education and motivation to help students make healthy choices. Translation to Health Education Practice: Health educators should work with classroom teachers at the program design, implementation, and evaluation stages of curriculum development to better address needs and facilitate the delivery of high-quality nutrition education for students

    Relationships between Nutrition-Related Knowledge, Self-Efficacy, and Behavior for Fifth Grade Students Attending Title I and Non-Title I Schools

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    The Social Cognitive Theory (SCT) is a widely used theory for nutrition education programming. Better understanding the relationships between knowledge, self-efficacy, and behavior among children of various income levels can help to form and improve nutrition programs, particularly for socioeconomically disadvantaged youth. The purpose of this study was to determine the relationships between knowledge, self-efficacy, and behavior among fifth grade students attending Title I (≥ 40% of students receiving free or reduced school meals) and non-Title I schools (\u3c 40% of students receiving free or reduced school meals). A validated survey was completed by 55 fifth grade students from Title I and 122 from non-Title I schools. Differences in knowledge, self-efficacy, and behavior scores between groups were assessed using t test and adjusted for variations between participating schools. Regression analysis was used to determine the relationships between knowledge, self-efficacy, and behavior. In adjusted models, the Title I group had significantly lower scores on several knowledge items and summary knowledge (P = 0.04). The Title I group had significantly lower scores on several behavior variables including intakes of fruits (P = 0.02), vegetables (P = 0.0005), whole grains (P = 0.0003), and lean protein (P = 0.047), physical activity (P = 0.002) and summary behavior (P = 0.001). However the Title I group scored higher on self-efficacy for meal planning (P = 0.04) and choosing healthy snacks (P = 0.036). Both self-efficacy (β = 0.70, P \u3c 0.0001) and knowledge (β = 0.35, P = 0.002) strongly predicted behavior; however, only self-efficacy remained significant in the Title I group (self-efficacy, β = 0.82, P = 0.0003; knowledge, β = 0.11, P = 0.59). Results demonstrate disparities in nutrition knowledge and behavior outcomes between students surveyed from Title I and non-Title I schools, suggesting more resources may be necessary for lower income populations. Findings suggest that future nutrition interventions should focus on facilitating the improvement of children\u27s self-efficac

    Changes in structural network topology correlate with severity of hallucinatory behavior in Parkinson's disease

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    Inefficient integration between bottom-up visual input and higher order visual processing regions is implicated in visual hallucinations in Parkinson's disease (PD). Here, we investigated white matter contributions to this perceptual imbalance hypothesis. Twenty-nine PD patients were assessed for hallucinatory behavior. Hallucination severity was correlated to connectivity strength of the network using the network-based statistic approach. The results showed that hallucination severity was associated with reduced connectivity within a subnetwork that included the majority of the diverse club. This network showed overall greater between-module scores compared with nodes not associated with hallucination severity. Reduced between-module connectivity in the lateral occipital cortex, insula, and pars orbitalis and decreased within-module connectivity in the prefrontal, somatosensory, and primary visual cortices were associated with hallucination severity. Conversely, hallucination severity was associated with increased between- and within-module connectivity in the orbitofrontal and temporal cortex, as well as regions comprising the dorsal attentional and default mode network. These results suggest that hallucination severity is associated with marked alterations in structural network topology with changes in participation along the perceptual hierarchy. This may result in the inefficient transfer of information that gives rise to hallucinations in PD. Author SummaryInefficient integration of information between external stimuli and internal perceptual predictions may lead to misperceptions or visual hallucinations in Parkinson's disease (PD). In this study, we show that hallucinatory behavior in PD patients is associated with marked alterations in structural network topology. Severity of hallucinatory behavior was associated with decreased connectivity in a large subnetwork that included the majority of the diverse club, nodes with a high number of between-module connections. Furthermore, changes in between-module connectivity were found across brain regions involved in visual processing, top-down prediction centers, and endogenous attention, including the occipital, orbitofrontal, and posterior cingulate cortex. Together, these findings suggest that impaired integration across different sides across different perceptual processing regions may result in inefficient transfer of information

    Civic Engagement in Education: Insights from California\u27s Local Control Funding Formula

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    In this policy brief, we use the case of California\u27s Local Control Funding Formula (LCFF) to provide policy makers and educators guidance on how to involve the public in goal setting and resource distribution decisions. We provide clarity around who is and is not participating, why, and what broader lessons we can draw for implementing federal and state education policies mandating public engagement. Our findings indicate tremendous room for improvement. LCFF\u27s target populations (e.g., low-income, English learners) are not more likely to be aware of or participate in decisions than nontargeted groups, which suggests weak accountability for the use of public funds by the policy\u27s target populations. Although LCFF has defined a broad set of stakeholders, only a narrow segment of the public (i.e., individuals with stronger ties to and positive views of schools) is aware of and engaging with the policy. Finally, we find a substantial gap between actual participation in LCFF and interest in participation, which may relate to a lack of self-efficacy, time, trust, perceived appropriateness, and information. As states and districts respond to mandates for engagement, these results suggest the need for greater investments in: (1) communication, (2) targeting a range of stakeholders, and (3) capacity building

    In Situ Fabrication and Repair (ISFR) Technologies; New Challenges for Exploration

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    NASA's human exploration initiative poses great opportunity and great risk for manned missions to the Moon and Mars. Engineers and Scientists at the Marshall Space Flight Center (MSFC) are continuing to evaluate current technologies for in situ resource-based exploration fabrication and repair applications. Several technologies to be addressed in this paper have technology readiness levels (TRLs) that are currently mature enough to pursue for exploration purposes. However, while many technologies offer promising applications, these technologies must be pulled along by the demands and applications of this great initiative. The In Situ Fabrication and Repair (ISFR) Element will supply and push state of the art technologies for applications such as habitat structure development, in situ resource utilization for tool and part fabrication, and repair and non-destructive evaluation W E ) of common life support elements. As an overview of the ISFR Element, this paper will address rapid prototyping technologies, their applications, challenges, and near term advancements. This paper will also discuss the anticipated need to utilize in situ resources to produce replacement parts and fabricate repairs to vehicles, habitats, life support and quality of life elements. Overcoming the challenges of ISFR development will provide the Exploration initiative with state of the art technologies that reduce risk, and enhance supportability

    Conceptualizing Equity in the Implementation of California Education Finance Reform

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    We examine how district administrators’ conceptions of equity relate to the implementation of finance reform. We use sensemaking theory and four views of equity—libertarian, liberal, democratic liberal, and transformative—to guide a case study of two districts, finding evidence of two conceptions of equity: (1) greater resources for students with greater needs and (2) equal distribution of resources for all students. One district demonstrated an organization-wide belief in the first conception, whereas the other conveyed individual-level understandings of both conceptions. These beliefs were mirrored in resource allocation decisions and informed by districts’ student demographics, organizational identities, and perceptions of adequacy

    Growing Healthy Kids: A School Enrichment Nutrition Education Program to Promote Healthy Behaviors for Children

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    The Growing Healthy Kids Program is a school-based nutrition education program that teaches students in Kindergarten through 2nd grade about healthy eating, physical activity, and how their body uses food. Pre- and post-knowledge data is collected from the students to measure changes in nutrition knowledge. In the first 2 years of the program, significant improvements in nutrition knowledge were found in all three grades. Teachers reported that students were more aware of the importance of nutrition and were making healthier meal and/or snack choices at the end of the program

    Aryl hydrocarbon receptor regulates cell cycle progression in human breast cancer cells via a functional interaction with cyclin-dependent kinase 4

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    ABSTRACT The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor with constitutive activities and those induced by xenobiotic ligands, such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). One unexplained cellular role for the AHR is its ability to promote cell cycle progression in the absence of exogenous ligands, whereas treatment with exogenous ligands induces cell cycle arrest. Within the cell cycle, progression from G 1 to S phase is controlled by sequential phosphorylation of the retinoblastoma protein (RB1) by cyclin D-cyclin-dependent kinase (CDK) 4/6 complexes. In this study, the functional interactions between the AHR, CDK4, and cyclin D1 (CCND1) were investigated as a potential mechanism for the cell cycle regulation by the AHR. Time course cell cycle and molecular experiments were performed in human breast cancer cells. The results demonstrated that the AHR and CDK4 interact within the cell cycle, and the interaction was disrupted upon TCDD treatment. The disruption was temporally correlated with G 1 cell cycle arrest and decreased phosphorylation of RB1. Biochemical reconstitution assays using in vitro-translated protein recapitulated the AHR and CDK4 interaction and showed that CCND1 was also part of the complex. In vitro assays for CDK4 kinase activity demonstrated that RB1 phosphorylation by the AHR/CDK4/CCND1 complex was reduced in the presence of TCDD. The results suggest that the AHR interacts in a complex with CDK4 and CCND1 in the absence of exogenous ligands to facilitate cell cycle progression. This interaction is disrupted by exogenous ligands, such as TCDD, to induce G 1 cell cycle arrest. The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor and a member of the basic helix-loophelix, period/aryl hydrocarbon receptor nuclear translocator (ARNT)/single-minded (PAS) superfamily. In the canonical model for AHR signaling, the unliganded form of the receptor exists in the cytoplasm in a stable complex with HSP90
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