59 research outputs found

    Factors affecting the profitability, productivity, and sustainability of socially disadvantaged urban agriculture operations in Pittsburgh, Pennsylvania

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    Over the past twenty years, various initiatives and policy updates have encouraged sustainable agriculture production in cities across the United States, yet farmers and growers still face multiple environmental, economic, and social challenges unique to their urban context. This study used a mixed-method qualitative design to identify factors that affect the profitability, productivity, and sustainability of socially disadvantaged urban agriculture operations in Pittsburgh, Pennsylvania. Findings reveal four sets of factors that constrain sustainable agriculture production for socially disadvantaged growers in Pittsburgh: (1) Navigating institutions and support organizations; (2) Finding and maintaining community; (3) Environmental barriers and limitations; (4) Race, gender, and intersections of identity. Comparisons of participant demographic characteristics show that women growers ages 18-34, regardless of race, are more likely to struggle with navigating bureaucracy, finding mentors, accessing relevant information, and experience feelings of isolation compared to growers over age 35. This finding suggests that new and beginning urban growers struggle to navigate the complex systems of non-profit, extension, and federal support programs and organizations in place to support Pittsburgh’s agriculturalists. This study has also identified the need for citywide education and extension programming that meets the unique circumstances of urban growers, such as workshops and training that describe best practices for soil remediation, marketing, and distribution strategies for small-scale farms and gardens. This research provides essential insight into critical urban agriculture scholarship and encourages discussion concerning the strengths and shortcomings of existing urban agriculture support services and opportunities for improvement among existing non-profit organizations, government agencies, research institutions, and extension services

    More than Body Composition: A Darwinian Theory of Somatotype, Applied to a DII Track and Field Outdoor Season

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    International Journal of Exercise Science 17(4): 1-12, 2024. This study presents somatotype data on a team sport with chronic and diverse sporting demands. The aims were to (1) characterize a somatotype profile for Division II (DII) track and field athletes (n=54) by sex, class, and events; (2) determine if somatotype changed across the season; (3) determine if changes differed based on class or sex; and, (4) assess potential differences in somatotype between sexes. Methods: Anthropometrics (height, weight, body composition, somatotype) were evaluated after a competitive indoor season and immediately before the outdoor conference championships (41 days). Body measurements were assessed using a bioelectrical impedance analysis device, skinfold assessment, boney breadths, and limb girths. Descriptive statistics are provided as well as results from two-way ANOVAs which evaluate differences in actual and change scores across sex and class. Results: Our DII track and field athletes were primarily endomorphic (scores displayed as ENDO, MESO, ECTO, respectively). Males were found to be primarily ENDO-MESO somatotypes (4.7, 4.1, 3.0), while females were dominantly ENDO (7.7, 2.9, 2.9). Upperclass were more ENDO-MESO balanced compared with lowerclass (5.8, 3.8, 2.8 vs 6.0, 3.5, 3.0). When investigated based on sex, class level, and event, the groups were similar. There was no meaningful change to ECTO scores across the season for males or females. Female athletes improved ENDO scores (-0.89%) and males and females improved MESO scores (14.29% and 5.29%, respectively), indicating adaptations can be accomplished despite the chronic demands of a competitive season. Conclusion: Our research offers practitioners information about the potential changes they may expect across a competitive track and field season

    Homeobox gene TGIF-1 is increased in placental endothelial cells of human fetal growth restriction.

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    Aberrant placental angiogenesis is associated with fetal growth restriction (FGR). In the mouse, targeted disruption of the homeobox gene, transforming growth ÎČ-induced factor (Tgif-1), which is also a transcription factor, causes defective placental vascularisation. Nevertheless, TGIF-1's role in human placental angiogenesis is unclear. We have previously reported increased TGIF-1 expression in human FGR placentae and demonstrated localisation of TGIF-1 protein in placental endothelial cells (ECs). However, its functional role remains to be investigated. In this study, we aimed to specifically compare TGIF-1 mRNA expression in placental ECs isolated from human FGR-affected pregnancies with gestation-matched control pregnancies in two independent cohorts from Australia and Canada, and to identify the functional role of TGIF-1 in placental angiogenesis using the human umbilical vein endothelial cell-derived cell line, SGHEC-7 and primary human umbilical vein ECs. Real-time PCR revealed that TGIF-1 mRNA expression was significantly increased in ECs isolated from FGR-affected placentae compared with that of controls. The functional roles of TGIF-1 were determined in ECs following TGIF-1 siRNA transfection. TGIF-1 inactivation in ECs significantly reduced TGIF-1 at both the mRNA and protein levels, as well as the proliferative and invasive potential, but significantly increased the angiogenic potential. Using angiogenesis PCR screening arrays, we identified ITGAV, NRP-1, ANPGT-1 and ANPGT-2 as novel downstream targets of TGIF-1, following TGIF-1 inactivation in ECs. Collectively, these results show that increased TGIF-1 in FGR may regulate EC function through mediating the expression of angiogenic molecules and contribute to aberrant placental angiogenesis in FGR pregnancies

    Common mental disorders and mortality in the West of Scotland Twenty-07 Study: comparing the General Health Questionnaire and the Hospital Anxiety and Depression Scale

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    Background While various measures of common mental disorders (CMD) have been found to be associated with mortality, a comparison of how different measures predict mortality may improve our understanding of the association. This paper compares how the Hospital Anxiety and Depression Scale (HADS) and the 30-item General Health Questionnaire (GHQ-30) predict all cause and cause-specific mortality. Methods Data on 2547 men and women from two cohorts, aged approximately 39 and 55 years, from the West of Scotland Twenty-07 Study who were followed up for mortality over an average of 18.9 (SD 5.0) years. Scores were calculated for HADS depression (HADS-D), HADS Anxiety (HADS-A) and GHQ-30. Cox Proportional Hazards Models were used to determine how each CMD measure predicted mortality. Results After adjusting for serious physical illness, smoking, social class, alcohol, obesity, pulse rate and living alone, HRs (95% CI) per SD increase in score for all-cause mortality were: 1.15 (1.07 to 1.25) for HADSD; 1.13 (1.04 to 1.23) for GHQ-30 and 1.05 (0.96 to 1.14) for HADS-A. After the same adjustments, cardiovascular disease mortality was also related to HADS-D (HR 1.24 (1.07 to 1.43)), to GHQ-30 (HR 1.24 (1.11 to 1.40)) and to HADS-A (HR 1.15 (1.01 to 1.32)); respiratory mortality to GHQ-30 (HR 1.33 (1.13 to 1.55)) and mortality from other causes, excluding injuries, to HADS-D (HR 1.28 (1.05 to 1.55)). Conclusions There were associations between CMD and both all-cause and cause-specific mortality which were broadly similar for GHQ-30 and HADS-D and were still present after adjustment for important confounders and mediators

    A Conceptual Framework for Social, Behavioral, and Environmental Change through Stakeholder Engagement in Water Resource Management

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    Incorporating stakeholder engagement into environmental management may help in the pursuit of novel approaches for addressing complex water resource problems. However, evidence about how and under what circumstances stakeholder engagement enables desirable changes remains elusive. In this paper, we develop a conceptual framework for studying social and environmental changes possible through stakeholder engagement in water resource management, from inception to outcomes. We synthesize concepts from multiple literatures to provide a framework for tracing linkages from contextual conditions, through engagement process design features, to social learning, community capacity building, and behavioral change at individual, group, and group network levels, and ultimately to environmental change. We discuss opportunities to enhance the framework including through empirical applications to delineate scalar and temporal dimensions of social, behavioral, and environmental changes resulting from stakeholder engagement, and the potential for negative outcomes thus far glossed over in research on change through engagement

    Inequality, Inc

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    To engage with inequality, I explore how corporate governance theory is based on inherently contingent ideas of the legal and organizational structuring of the modern public corporation in a corporate ‘architecture’ and how these contingent ideas affect the distribution of privileges, protections and proceeds to different types of actors. I argue that the currently dominant corporate governance theory ignores a specific corporate architecture that provided internal and external legitimacy to the modern public corporation by embedding a set of trade-offs between constituent groups and cementing those trade-offs into a broader institutional setting. Ignoring this architecture leads to the redirection of the privileges and protections embodied in the modern corporation to the exclusive benefit of an implicit coalition of market value-oriented shareholders and managers, while the risks to all other actors, interests and timeframes are relegated to the status of ‘externalities’. I explore how a focus on contingent conceptions of the modern corporation and of corporate governance provides an organizational-level explanation for growing inequality with which existing sectoral and state-centric approaches and means for engagement can be complemented

    Accounting for Impact? The Journal Impact Factor and the Making of Biomedical Research in the Netherlands

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    The range and types of performance metrics has recently proliferated in academic settings, with bibliometric indicators being particularly visible examples. One field that has traditionally been hospitable towards such indicators is biomedicine. Here the relative merits of bibliometrics are widely discussed, with debates often portraying them as heroes or villains. Despite a plethora of controversies, one of the most widely used indicators in this field is said to be the Journal Impact Factor (JIF). In this article we argue that much of the current debates around researchers’ uses of the JIF in biomedicine can be classed as ‘folk theories’: explanatory accounts told among a community that seldom (if ever) get systematically checked. Such accounts rarely disclose how knowledge production itself becomes more-or-less consolidated around the JIF. Using ethnographic materials from different research sites in Dutch University Medical Centers, this article sheds new empirical and theoretical light on how performance metrics variously shape biomedical research on the ‘shop floor.’ Our detailed analysis underscores a need for further research into the constitutive effects of evaluative metrics
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