326 research outputs found

    Feminist Relational Theory

    Get PDF
    Accounts of human beings as essentially social have had a long history in philosophy as reflected in the Ancient Greeks; in African and Asian philosophy; in Modern European thinkers such as Mary Wollstonecraft, David Hume, Adam Smith, and Karl Marx; in continental philosophy; in pragmatism; in Indigenous thought, and in contemporary communitarian theories. It can be said, then, that the language of relational theory has taken a variety of forms. That relational theory is broad and captures various threads in the history of philosophy is captured in the main title of this special issue, Relational Theory. That this special issue zeroes in on the distinctive features and contributions of feminist relational theory is captured in the subtitle, Feminist Approaches, Implications, and Applications, and explained in this introduction. This special issue of Journal of Global Ethics is devoted to exploring, extending, applying, and deepening relational insights emerging from today’s feminist relational theory

    Teaching Race and Racial Justice: Developing Students’ Cognitive and Affective Understanding

    Get PDF
    Effectively addressing both cognitive and affective dimensions of learning is one of the greatest obstacles to teaching race and racial justice in higher education. In this article, we first explore the need to integrate attention to cognitive and affective development, along with evidence-based strategies for doing so. We then provide a case study of an undergraduate sociology course on environmental justice in which the instructor intentionally adopted holistic pedagogical principles of teaching race. Analyzing student responses from a pre- and post- course survey, course assignments, and instructor observations of student participation, we find that both white students and students of color experienced significant growth in their cognitive and affective understanding of the complexities of race and work toward racial justice. However, results also show how challenging it can be to create the conditions for productive multiracial dialogues that produce extensive affective development, particularly interpersonal skills of racial reconciliation. Reflecting on the limitations of the case, we conclude that more holistic teaching approaches are necessary to develop both students’ cognitive and affective abilities to navigate race and work against racism, and we make suggestions for faculty development and administrative support

    Teaching Race, Racism, and Racial Justice: Pedagogical Principles and Classroom Strategies for Course Instructors

    Get PDF
    Teaching on topics of race and racism presents unique challenges to leaders in the university classroom setting. Despite an increasing number of instructors bringing a critical analysis of racial in/justice to their curriculum, many report challenges in teaching this content effectively. In this article, we address these challenges. We define common challenges in teaching racial content and articulate four principles for course planning around topics of race, racism, and racial justice. Then, drawing on a systematic review of scholarship examining issues of difference within a diverse range of disciplinary settings, we introduce a set of five pedagogical strategies, and supporting classroom practices, that will help instructors effectively manage everyday classroom interactions. This article contributes to the vast literature on teaching race and anti-racist education by synthesizing guiding pedagogical principles for course planning and classroom management that are applicable in a wide array of disciplinary contexts and providing concrete strategies that committed instructors, at varying levels of experience, can implement in their courses

    A Novel High-Throughput, High-Content Three-Dimensional Assay for Determination of Tumor Invasion and Dormancy

    Get PDF
    Metastasis accounts for most cancer deaths, while dormancy of tumor cells leads to unexpected cancer recurrence. These two aspects of cancer remain relatively untreatable in part because current two-dimensional (2D) methods of high-throughput drug screening cannot quantify outcomes related to these phenotypes. Three-dimensional (3D) in-vitro tumor models are a promising alternative because they better recreate the tumor microenvironment and relevant phenotypes. However, outcome measures for high-throughput screening of these systems are often limited to single measures such as metabolic activity using assays that are not standardized or optimized for 3D models. To address this gap, the objective of this work to develop an image-based assay to measure tumor cell health, proliferation, invasion, and dormancy for high-throughput drug screening. Drug dosing experiments were performed using a novel 3D pancreatic tumor metastasis model, followed by application of various dye combinations to assess viability, proliferation, metabolic activity, and invasion. We successfully demonstrated that high throughput imaging and analysis can be performed to quantify proliferation, metabolic activity, and invasion in a single multi-output assay. Proof-of-concept experiments also revealed that while gemcitabine does effectively inhibit cancer cell proliferation it does not kill all cells and may contribute to tumor dormancy. Overall, this work using a novel 3D tumor metastasis model coupled with a multi-output assay serves as a first step toward a drug screening platform that will enable researchers to better correlate in-vitro model results with clinical outcomes related to metastasis and dormancy

    Modeling the Effect of Land Use Change on Hydrology of a Forested Watershed in Coastal South Carolina

    Get PDF
    2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Regio

    Deletion of the eIFiso4G subunit of the Arabidopsis eIFiso4F translation initiation complex impairs health and viability

    Get PDF
    Arabidopsis thaliana knockout lines for the plant-specific eukaryotic translation initiation factors eIFiso4G1 (i4g1) and eIFiso4G2 (i4g2) genes have been obtained. To address the potential for functional redundancy of these genes, homozygous double mutant lines were generated by crossing individual knockout lines. Both single and double mutant plants were analyzed for changes in gross morphology, development, and responses to selected environmental stressors. Single gene knockouts appear to have minimal effect on morphology, germination rate, growth rate, flowering time, or fertility. However, double mutant i4g1/i4g2 knockout plants show reduced germination rates, slow growth rates, moderate chlorosis, impaired fertility and reduced long term seed viability. Double mutant plants also exhibit altered responses to dehydration, salinity, and heat stress. The i4g2 and i4g1/i4g2 double mutant has reduced amounts of chlorophyll a and b suggesting a role in the expression of chloroplast proteins. General protein synthesis did not appear to be affected as the levels of gross protein expression did not appear to change in the mutants. The lack of a phenotype for either of the single mutants suggests there is considerable functional overlap. However, the strong phenotypes observed for the double mutant indicates that the individual gene products may have specialized roles in the expression of proteins involved in plant growth and development

    Amine functionalization of cholecyst-derived extracellular matrix with generation 1 PAMAM dendrimer

    Get PDF
    This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in Biomacromolecules, copyright © American Chemical Society after peer review. To access the final edited and published work, see http://pubs.acs.org/doi/pdf/10.1021/bm701055k.A method to functionalize cholecyst-derived extracellular matrix (CEM) with free amine groups was established in an attempt to improve its potential for tethering of bioactive molecules. CEM was incorporated with Generation-1 polyamidoamine (G1 PAMAM) dendrimer by using N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide and N-hydroxysuccinimide cross-linking system. The nature of incorporation of PAMAM dendrimer was evaluated using shrink temperature measurements, Fourier transform infrared (FTIR) assessment, ninhydrin assay, and swellability. The effects of PAMAM incorporation on mechanical and degradation properties of CEM were evaluated using a uniaxial mechanical test and collagenase degradation assay, respectively. Ninhydrin assay and FTIR assessment confirmed the presence of increasing free amine groups with increasing quantity of PAMAM in dendrimer-incorporated CEM (DENCEM) scaffolds. The amount of dendrimer used was found to be critical in controlling scaffold degradation, shrink temperature, and free amine content. Cell culture studies showed that fibroblasts seeded on DENCEM maintained their metabolic activity and ability to proliferate in vitro. In addition, fluorescence cell staining and scanning electron microscopy analysis of cell-seeded DENCEM showed preservation of normal fibroblast morphology and phenotype

    Trends and determinants of excess winter mortality in New Zealand: 1980 to 2000

    Get PDF
    <p>Abstract</p> <p>Background</p> <p>Although many countries experience an increase in mortality during winter, the magnitude of this increase varies considerably, suggesting that some winter excess may be avoidable. Conflicting evidence has been presented on the role of gender, region and deprivation. Little has been published on the magnitude of excess winter mortality (EWM) in New Zealand (NZ) and other Southern Hemisphere countries.</p> <p>Methods</p> <p>Monthly mortality rates per 100,000 population were calculated from routinely collected national mortality data for 1980 to 2000. Generalised negative binomial regression models were used to compare mortality rates between winter (June–September) and the warmer months (October–May).</p> <p>Results</p> <p>From 1980–2000 around 1600 excess winter deaths occurred each year with winter mortality rates 18% higher than expected from non-winter rates. Patterns of EWM by age group showed the young and the elderly to be particularly vulnerable. After adjusting for all major covariates, the winter:non-winter mortality rate ratio from 1996–2000 in females was 9% higher than in males. Mortality caused by diseases of the circulatory system accounted for 47% of all excess winter deaths from 1996–2000 with mortality from diseases of the respiratory system accounting for 31%. There was no evidence to suggest that patterns of EWM differed by ethnicity, region or local-area based deprivation level. No decline in seasonal mortality was evident over the two decades.</p> <p>Conclusion</p> <p>EWM in NZ is substantial and at the upper end of the range observed internationally. Interventions to reduce EWM are important, but the surprising lack of variation in EWM by ethnicity, region and deprivation, provides little guidance for how such mortality can be reduced.</p

    Self-Reported Functional Status as Predictor of Observed Functional Capacity in Subjects with Early Osteoarthritis of the Hip and Knee: A Diagnostic Study in the CHECK Cohort

    Get PDF
    Objectives Patients with hip or knee osteoarthritis (OA) may experience functional limitations in work settings. In the Cohort Hip and Cohort Knee study (CHECK) physical function was both self-reported and measured performance-based, using Functional Capacity Evaluation (FCE). Relations between self-reported scores on SF-36 and WOMAC (Western Ontario and McMaster Arthritis Index, function scales) and FCE performance were studied, and their diagnostic value for clinicians in predicting observed physical work limitations was assessed. Methods Ninety-two subjects scored physical function on SF-36 (scale 0–100, 100 indicating the best health level) and WOMAC (scale 0–68, 68 indicates maximum restriction) and performed the FCE. Correlations were calculated between all scores. Cross-tables were constructed using both questionnaires as diagnostic tests to identify work limitations. Subjects lifting <22.5 kg on the FCE-test ‘lifting-low’ were labeled as having physical work limitations. Diagnostic aspects at different cut-off scores for both questionnaires were analysed. Results Statistically significant correlations (Spearman’s ρ 0.34–0.49) were found between questionnaire scores and lifting and carrying tests. Results of a diagnostic cross-table with cut-off point <60 on SF-36 ‘physical functioning’ were: sensitivity 0.34, specificity 0.97 and positive predictive value (PV+) 0.95. Cut-off point ≥21 on WOMAC ‘function’ resulted in sensitivity 0.51, specificity 0.88 and PV+ 0.88. Conclusion Low self-reported function scores on SF-36 and WOMAC diagnosed subjects with limitations on the FCE. However, high scores did not guarantee performance without physical work limitations. These results are specific to the tested persons with early OA, in populations with a different prevalence of limitations, different diagnostic values will be found. FCE may be indicated to help clinicians to assess actual work capacity
    corecore