149 research outputs found

    A Body a Day: Constructing Deviance at the Mississippi State Asylum

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    Though the first graves of assumed-former asylum patients were discovered at the University of Mississippi Medical Center over 25 years ago, it wasn’t until 2017 that the estimated body count—which had been rising in reports for several years—rose above 7,000. Along with national attention, the growing burial site has prompted large-scale efforts by a consortium of scientists and scholars to determine how best to utilize and memorialize the remains, and yet to date, a complete cultural study that explores the sociopolitical context which these people represent has yet to be published. Consisting primarily of archival material and interviews, my research seeks to connect these bodies to the history of the Mississippi State Lunatic Asylum, with the hope of—in a practical sense— creating a crucial repository of what is known of these people’s stories. In a scholarly sense, this work attempts to use a documentary lens to reveal intersections of race and lunacy in order to understand how southern institutions influenced notions of deviance and reinforced Jim Crow

    Multiple Dimensions of Family Involvement and Their Relations to Behavioral and Learning Competencies for Urban, Low-Income Children

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    Relations between multiple dimensions of family involvement in early childhood education and classroom outcomes were examined. Participants included 144 urban, Head Start children. Parental report of family involvement was gathered in late fall using a multidimensional assessment. Relations between family involvement dimensions and end of the year outcomes of approaches to learning, conduct problems, and receptive vocabulary were investigated. Results revealed that Home-Based family involvement emerged as the strongest predictor of child outcomes. This dimension associated significantly with children\u27s motivation to learn, attention, task persistence, receptive vocabulary skills, and low conduct problems. The School-Based Involvement dimension was significantly related to low conduct problems in the classroom when combined with the influence of Home- Based Involvement. The School-Based Involvement and Home-School Conferencing dimensions did not predict later child outcomes when considered simultaneously with Home-Based Involvement

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    DNA copy number changes define spatial patterns of heterogeneity in colorectal cancer

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    Genetic heterogeneity between and within tumours is a major factor determining cancer progression and therapy response. Here we examined DNA sequence and DNA copy-number heterogeneity in colorectal cancer (CRC) by targeted high-depth sequencing of 100 most frequently altered genes. In 97 samples, with primary tumours and matched metastases from 27 patients, we observe inter-tumour concordance for coding mutations; in contrast, gene copy numbers are highly discordant between primary tumours and metastases as validated by fluorescent in situ hybridization. To further investigate intra-tumour heterogeneity, we dissected a single tumour into 68 spatially defined samples and sequenced them separately. We identify evenly distributed coding mutations in APC and TP53 in all tumour areas, yet highly variable gene copy numbers in numerous genes. 3D morpho-molecular reconstruction reveals two clusters with divergent copy number aberrations along the proximal–distal axis indicating that DNA copy number variations are a major source of tumour heterogeneity in CRC

    Polymorphisms in bovine immune genes and their associations with somatic cell count and milk production in dairy cattle

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    <p>Abstract</p> <p>Background</p> <p>Mastitis, an inflammation of the mammary gland, is a major source of economic loss on dairy farms. The aim of this study was to quantify the associations between two previously identified polymorphisms in the bovine toll-like receptor 2 (<it>TLR2</it>) and chemokine receptor 1 (<it>CXCR1</it>) genes and mammary health indictor traits in (a) 246 lactating dairy cow contemporaries representing five breeds from one research farm and (b) 848 Holstein-Friesian bulls that represent a large proportion of the Irish dairy germplasm. To expand the study, a further 14 polymorphisms in immune genes were included for association studies in the bull population.</p> <p>Results</p> <p>TLR4-2021 associated (P < 0.05) with both milk protein and fat percentage in late lactation (P < 0.01) within the cow cohort. No association was observed between this polymorphism and either yield or composition of milk within the bull population. CXCR1-777 significantly associated (P < 0.05) with fat yield in the bull population and tended to associate (P < 0.1) with somatic cell score (SCS) in the cows genotyped. CD14-1908 A allele was found to associate with increased (P < 0.05) milk fat and protein yield and also tended to associate with increased (P < 0.1) milk yield. A <it>SERPINA1 </it>haplotype with superior genetic merit for milk protein yield and milk fat percentage (P < 0.05) was also identified.</p> <p>Conclusion</p> <p>Of the sixteen polymorphisms in seven immune genes genotyped, just CXCR1-777 tended to associate with SCS, albeit only in the on-farm study. The lack of an association between the polymorphisms with SCS in the Holstein-Friesian data set would question the potential importance of these variants in selection for improved mastitis resistance in the Holstein-Friesian cow.</p

    Computational and transcriptional evidence for microRNAs in the honey bee genome

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    A total of 68 non-redundant candidate honey bee miRNAs were identified computationally; several of them appear to have previously unrecognized orthologs in the Drosophila genome. Several miRNAs showed caste- or age-related differences in transcript abundance and are likely to be involved in regulating honey bee development

    DNA methylation reveals distinct cells of origin for pancreatic neuroendocrine carcinomas and pancreatic neuroendocrine tumors.

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    BACKGROUND Pancreatic neuroendocrine neoplasms (PanNENs) fall into two subclasses: the well-differentiated, low- to high-grade pancreatic neuroendocrine tumors (PanNETs), and the poorly-differentiated, high-grade pancreatic neuroendocrine carcinomas (PanNECs). While recent studies suggest an endocrine descent of PanNETs, the origin of PanNECs remains unknown. METHODS We performed DNA methylation analysis for 57 PanNEN samples and found that distinct methylation profiles separated PanNENs into two major groups, clearly distinguishing high-grade PanNECs from other PanNETs including high-grade NETG3. DNA alterations and immunohistochemistry of cell-type markers PDX1, ARX, and SOX9 were utilized to further characterize PanNECs and their cell of origin in the pancreas. RESULTS Phylo-epigenetic and cell-type signature features derived from alpha, beta, acinar, and ductal adult cells suggest an exocrine cell of origin for PanNECs, thus separating them in cell lineage from other PanNENs of endocrine origin. CONCLUSIONS Our study provides a robust and clinically applicable method to clearly distinguish PanNECs from G3 PanNETs, improving patient stratification

    Bovine Genome Database: integrated tools for genome annotation and discovery

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    The Bovine Genome Database (BGD; http://BovineGenome.org) strives to improve annotation of the bovine genome and to integrate the genome sequence with other genomics data. BGD includes GBrowse genome browsers, the Apollo Annotation Editor, a quantitative trait loci (QTL) viewer, BLAST databases and gene pages. Genome browsers, available for both scaffold and chromosome coordinate systems, display the bovine Official Gene Set (OGS), RefSeq and Ensembl gene models, non-coding RNA, repeats, pseudogenes, single-nucleotide polymorphism, markers, QTL and alignments to complementary DNAs, ESTs and protein homologs. The Bovine QTL viewer is connected to the BGD Chromosome GBrowse, allowing for the identification of candidate genes underlying QTL. The Apollo Annotation Editor connects directly to the BGD Chado database to provide researchers with remote access to gene evidence in a graphical interface that allows editing and creating new gene models. Researchers may upload their annotations to the BGD server for review and integration into the subsequent release of the OGS. Gene pages display information for individual OGS gene models, including gene structure, transcript variants, functional descriptions, gene symbols, Gene Ontology terms, annotator comments and links to National Center for Biotechnology Information and Ensembl. Each gene page is linked to a wiki page to allow input from the research community
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