29 research outputs found

    Higher Education during Crisis: A Phenomenological Study of Educator Perceptions on Their Transition to Online Education during the Covid-19 Pandemic

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    The purpose of this hermeneutic phenomenological study is to describe the experience of higher education faculty during the crisis-response transition to online learning as a result of the COVID-19 pandemic. By gaining a perspective of the experiences of faculty during this crisis experienced during the 2020-2021 academic year, valuable insight can be gained for higher education institutions on how to better prepare for future crises. Phenomenology allows the participant’s perspectives to be treated as complete truth and analyzed from multiple vantage points through horizontalization. This study uses Transition Theory to draw conclusions about the adaptability of faculty without prior experience teaching online that were rapidly forced to transition during the COVID-19 crisis. Given the global nature of the COVID-19 pandemic, the study uses a snowball sampling method and maintained a broad setting of the United States. The data collection plan process showed that faculty prefer in-person teaching to online due to control of class dynamics and a lack of online pedagogy. The study also found that there is a growing double standard with faculty expressing the need for online teaching training but not a willingness to participate

    Racialized Rescue Narratives in Public Discourses on Youth Prostitution and Sex Trafficking in the United States

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    This article presents an analysis of how activists, politicians, and the media framed youth involvement in the sex trade during the 1970s, the 1990s, and the 2000s in the United States. Across these periods of public concern about the issue, similar framing has recurred that has drawn upon gendered and racialized notions of victimization and perpetration. This frame has successfully brought attention to this issue by exploiting public anxieties at historical moments when social change was threatening white male dominance. Using intersectional feminist theory, I argue that mainstream rhetoric opposing the youth sex trade worked largely within neoliberal logics, ignoring histories of dispossession and structural violence and reinforcing individualistic notions of personhood and normative ideas about subjectivity and agency. As part of the ongoing project of racial and gender formation in US society, this discourse has shored up neoliberal governance, particularly the build-up of the prison industrial complex, and it has obscured the state\u27s failure to address the myriad social problems that make youth vulnerable to the sex trade

    Genomic, Pathway Network, and Immunologic Features Distinguishing Squamous Carcinomas

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    This integrated, multiplatform PanCancer Atlas study co-mapped and identified distinguishing molecular features of squamous cell carcinomas (SCCs) from five sites associated with smokin

    A shared MHC supertype motif emerges by convergent evolution in macaques and mice, but is totally absent in human MHC molecules

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    The SIV-infected rhesus macaque (Macaca mulatta) is the most established model of AIDS disease systems, providing insight into pathogenesis and a model system for testing novel vaccines. The understanding of cellular immune responses based on the identification and study of Major Histocompatibility Complex (MHC) molecules, including their MHC:peptide-binding motif, provides valuable information to decipher outcomes of infection and vaccine efficacy. Detailed characterization of Mamu-B*039:01, a common allele expressed in Chinese rhesus macaques, revealed a unique MHC:peptide-binding preference consisting of glycine at the second position. Peptides containing a glycine at the second position were shown to be antigenic from animals positive for Mamu-B*039:01. A similar motif was previously described for the Dd mouse MHC allele, but for none of the human HLA molecules for which a motif is known. Further investigation showed that one additional macaque allele, present in Indian rhesus macaques, Mamu-B*052:01, shares this same motif. These “G2” alleles were associated with the presence of specific residues in their B pocket. This pocket structure was found in 6% of macaque sequences but none of 950 human HLA class I alleles. Evolutionary studies using the “G2” alleles points to common ancestry for the macaque sequences, while convergent evolution is suggested when murine and macaque sequences are considered. This is the first detailed characterization of the pocket residues yielding this specific motif in nonhuman primates and mice, revealing a new supertype motif not present in humans

    Identification of genetic variants associated with Huntington's disease progression: a genome-wide association study

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    Background Huntington's disease is caused by a CAG repeat expansion in the huntingtin gene, HTT. Age at onset has been used as a quantitative phenotype in genetic analysis looking for Huntington's disease modifiers, but is hard to define and not always available. Therefore, we aimed to generate a novel measure of disease progression and to identify genetic markers associated with this progression measure. Methods We generated a progression score on the basis of principal component analysis of prospectively acquired longitudinal changes in motor, cognitive, and imaging measures in the 218 indivduals in the TRACK-HD cohort of Huntington's disease gene mutation carriers (data collected 2008–11). We generated a parallel progression score using data from 1773 previously genotyped participants from the European Huntington's Disease Network REGISTRY study of Huntington's disease mutation carriers (data collected 2003–13). We did a genome-wide association analyses in terms of progression for 216 TRACK-HD participants and 1773 REGISTRY participants, then a meta-analysis of these results was undertaken. Findings Longitudinal motor, cognitive, and imaging scores were correlated with each other in TRACK-HD participants, justifying use of a single, cross-domain measure of disease progression in both studies. The TRACK-HD and REGISTRY progression measures were correlated with each other (r=0·674), and with age at onset (TRACK-HD, r=0·315; REGISTRY, r=0·234). The meta-analysis of progression in TRACK-HD and REGISTRY gave a genome-wide significant signal (p=1·12 × 10−10) on chromosome 5 spanning three genes: MSH3, DHFR, and MTRNR2L2. The genes in this locus were associated with progression in TRACK-HD (MSH3 p=2·94 × 10−8 DHFR p=8·37 × 10−7 MTRNR2L2 p=2·15 × 10−9) and to a lesser extent in REGISTRY (MSH3 p=9·36 × 10−4 DHFR p=8·45 × 10−4 MTRNR2L2 p=1·20 × 10−3). The lead single nucleotide polymorphism (SNP) in TRACK-HD (rs557874766) was genome-wide significant in the meta-analysis (p=1·58 × 10−8), and encodes an aminoacid change (Pro67Ala) in MSH3. In TRACK-HD, each copy of the minor allele at this SNP was associated with a 0·4 units per year (95% CI 0·16–0·66) reduction in the rate of change of the Unified Huntington's Disease Rating Scale (UHDRS) Total Motor Score, and a reduction of 0·12 units per year (95% CI 0·06–0·18) in the rate of change of UHDRS Total Functional Capacity score. These associations remained significant after adjusting for age of onset. Interpretation The multidomain progression measure in TRACK-HD was associated with a functional variant that was genome-wide significant in our meta-analysis. The association in only 216 participants implies that the progression measure is a sensitive reflection of disease burden, that the effect size at this locus is large, or both. Knockout of Msh3 reduces somatic expansion in Huntington's disease mouse models, suggesting this mechanism as an area for future therapeutic investigation
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