2,658 research outputs found

    The Status of Women Leaders in Utah Education

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    In September of 2013, the Center for American Progress released a report titled“ The State of Women in America: A 50- State Analysis of How Women Are Faring Across the Nation.” The report ranked Utah last of all 50 states in terms of women holding positions of decision making and leadership. Because the focus was solely on the percentage of women in elected office and private sector management positions, we determined that a more detailed look at the status of women and leadership in various sectors within the state would be useful. This is the third of four 2014 briefs, and it focuses on the status of women leaders in Utah education (higher and public K–12). The previous briefs highlighted data on women in Utah politics and nonprofit organizations, and the remaining one will focus on business. Each compares Utah data with national data and reviews applicable literature

    The Status of Women Leaders in Utah Nonprofits

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    In September 2013, the Center for American Progress released a report titled “ The State of Women in America: A 50- State Analysis of How Women Are Faring Across the Nation.” This report ranks Utah last of all 50 states in terms of women being in positions of decision making and leadership. Although the focus is solely on the percentage of women in elected office and private sector management positions, we feel that a more detailed look on the status of women in leadership in various sectors within the state would be useful. This is the second of four 2014 briefs, each of which compares national data with Utah data and provides a pertinent literature review. The first provides data on women in Utah politics; subsequent ones will focus on women leaders in education and business. This brief focuses on the status of women leaders in Utah nonprofit organizations

    Alterations of Excitation–Contraction Coupling and Excitation Coupled Ca2+ Entry in Human Myotubes Carrying CAV3 Mutations Linked to Rippling Muscle Disease

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    Rippling muscle disease is caused by mutations in the gene encoding caveolin-3 (CAV3), the muscle-specific isoform of the scaffolding protein caveolin, a protein involved in the formation of caveolae. In healthy muscle, caveolin-3 is responsible for the formation of caveolae, which are highly organized sarcolemmal clusters influencing early muscle differentiation, signalling and Ca2+ homeostasis. In the present study we examined Ca2+ homeostasis and excitation–contraction (E-C) coupling in cultured myotubes derived from two patients with Rippling muscle disease with severe reduction in caveolin-3 expression; one patient harboured the heterozygous c.84C>A mutation while the other patient harbored a homozygous splice-site mutation (c.102+ 2T>C) affecting the splice donor site of intron 1 of the CAV3 gene. Our results show that cells from control and rippling muscle disease patients had similar resting [Ca2+]i and 4-chloro-m-cresol-induced Ca2+ release but reduced KCl-induced Ca2+ influx. Detailed analysis of the voltage-dependence of Ca2+ transients revealed a significant shift of Ca2+ release activation to higher depolarization levels in CAV3 mutated cells. High resolution immunofluorescence analysis by Total Internal Fluorescence microscopy supports the hypothesis that loss of caveolin-3 leads to microscopic disarrays in the colocalization of the voltage-sensing dihydropyridine receptor and the ryanodine receptor, thereby reducing the efficiency of excitation–contraction coupling. Hum Mutat 32:309–317, 2011. © 2011 Wiley-Liss, Inc

    Linguistics

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    Contains research objectives and reports on five research projects.National Institutes of Health (Grant 1 P01 MH-13390-02

    HST/NICMOS Imaging of Disks and Envelopes Around Very Young Stars

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    We present HST/NICMOS observations with 0.1" (15 AU) resolution of six young stellar objects in the Taurus star-formation region. The targets of our survey are three Class I IRAS sources (IRAS 04016+2610, IRAS 04248+2612, and IRAS 04302+2247) and three low-luminosity stars (DG Tau B, Haro 6-5B, and CoKu Tau/1) associated with Herbig Haro jets. The broad-band images show that the near-infrared radiation from these sources is dominated by light scattered from dusty circumstellar material distributed in a region 10 - 15 times the size of our solar system. Although the detailed morphologies of the individual objects are unique, the observed young stellar objects share common features. All of the circumstellar reflection nebulae are crossed by dark lanes from 500 - 900 AU in extent and from less than 50 to 350 AU in apparent thickness. The absorption lanes extend perpendicular to known optical and millimeter outflows in these sources. We interpret the dark lanes as optically thick circumstellar disks seen in silhouette against bright reflection nebulosity. The bipolar reflection nebulae extending perpendicular to the dust lanes appear to be produced by scattering from the upper and lower surfaces of the disks and from dusty material within or on the walls of the outflow cavities. Out of five objects in which the central source is directly detected, two are found to be subarcsecond binaries. This mini-survey is the highest resolution near-infrared study to date of circumstellar environments around solar-type stars with age <= 1 Myr.Comment: 34 pages, 4 figures; also available at http://spider.ipac.caltech.edu/staff/brandner/topics/disks/disks.html ; accepted for publication in AJ (March 1999 issue

    Intronic Non-CG DNA hydroxymethylation and alternative mRNA splicing in honey bees

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    Abstract Background Previous whole-genome shotgun bisulfite sequencing experiments showed that DNA cytosine methylation in the honey bee (Apis mellifera) is almost exclusively at CG dinucleotides in exons. However, the most commonly used method, bisulfite sequencing, cannot distinguish 5-methylcytosine from 5-hydroxymethylcytosine, an oxidized form of 5-methylcytosine that is catalyzed by the TET family of dioxygenases. Furthermore, some analysis software programs under-represent non-CG DNA methylation and hydryoxymethylation for a variety of reasons. Therefore, we used an unbiased analysis of bisulfite sequencing data combined with molecular and bioinformatics approaches to distinguish 5-methylcytosine from 5-hydroxymethylcytosine. By doing this, we have performed the first whole genome analyses of DNA modifications at non-CG sites in honey bees and correlated the effects of these DNA modifications on gene expression and alternative mRNA splicing. Results We confirmed, using unbiased analyses of whole-genome shotgun bisulfite sequencing (BS-seq) data, with both new data and published data, the previous finding that CG DNA methylation is enriched in exons in honey bees. However, we also found evidence that cytosine methylation and hydroxymethylation at non-CG sites is enriched in introns. Using antibodies against 5-hydroxmethylcytosine, we confirmed that DNA hydroxymethylation at non-CG sites is enriched in introns. Additionally, using a new technique, Pvu-seq (which employs the enzyme PvuRts1l to digest DNA at 5-hydroxymethylcytosine sites followed by next-generation DNA sequencing), we further confirmed that hydroxymethylation is enriched in introns at non-CG sites. Conclusions Cytosine hydroxymethylation at non-CG sites might have more functional significance than previously appreciated, and in honey bees these modifications might be related to the regulation of alternative mRNA splicing by defining the locations of the introns
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