64 research outputs found

    Navigating Research Waters: The Research Mentor Program at the University of New Hampshire at Manchester

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    This essay uses a journal format to describe the research mentor program at the University of New Hampshire at Manchester (UNHM). Librarians, Learning Center staff, and writing instructors at UNHM have collaborated to train class-linked tutors to present basic library instruction in the classroom and to provide one-on-one research assistance to students in freshman-level composition classes. This information literacy initiative has expanded our students\u27 community of learning by providing them with point-of-need research assistance from knowledgeable peers

    Mycobacterium tuberculosis lineage 4 comprises globally distributed and geographically restricted sublineages

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    Generalist and specialist species differ in the breadth of their ecological niches. Little is known about the niche width of obligate human pathogens. Here we analyzed a global collection of Mycobacterium tuberculosis lineage 4 clinical isolates, the most geographically widespread cause of human tuberculosis. We show that lineage 4 comprises globally distributed and geographically restricted sublineages, suggesting a distinction between generalists and specialists. Population genomic analyses showed that, whereas the majority of human T cell epitopes were conserved in all sublineages, the proportion of variable epitopes was higher in generalists. Our data further support a European origin for the most common generalist sublineage. Hence, the global success of lineage 4 reflects distinct strategies adopted by different sublineages and the influence of human migration.We thank S. Lecher, S. Li and J. Zallet for technical support. Calculations were performed at the sciCORE scientific computing core facility at the University of Basel. This work was supported by the Swiss National Science Foundation (grants 310030_166687 (S.G.) and 320030_153442 (M.E.) and Swiss HIV Cohort Study grant 740 to L.F.), the European Research Council (309540-EVODRTB to S.G.), TB-PAN-NET (FP7-223681 to S.N.), PathoNgenTrace projects (FP7-278864-2 to S.N.), SystemsX.ch (S.G.), the German Center for Infection Research (DZIF; S.N.), the Novartis Foundation (S.G.), the Natural Science Foundation of China (91631301 to Q.G.), and the National Institute of Allergy and Infectious Diseases (5U01-AI069924-05) of the US National Institutes of Health (M.E.)

    Bi-allelic Loss-of-Function CACNA1B Mutations in Progressive Epilepsy-Dyskinesia.

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    The occurrence of non-epileptic hyperkinetic movements in the context of developmental epileptic encephalopathies is an increasingly recognized phenomenon. Identification of causative mutations provides an important insight into common pathogenic mechanisms that cause both seizures and abnormal motor control. We report bi-allelic loss-of-function CACNA1B variants in six children from three unrelated families whose affected members present with a complex and progressive neurological syndrome. All affected individuals presented with epileptic encephalopathy, severe neurodevelopmental delay (often with regression), and a hyperkinetic movement disorder. Additional neurological features included postnatal microcephaly and hypotonia. Five children died in childhood or adolescence (mean age of death: 9 years), mainly as a result of secondary respiratory complications. CACNA1B encodes the pore-forming subunit of the pre-synaptic neuronal voltage-gated calcium channel Cav2.2/N-type, crucial for SNARE-mediated neurotransmission, particularly in the early postnatal period. Bi-allelic loss-of-function variants in CACNA1B are predicted to cause disruption of Ca2+ influx, leading to impaired synaptic neurotransmission. The resultant effect on neuronal function is likely to be important in the development of involuntary movements and epilepsy. Overall, our findings provide further evidence for the key role of Cav2.2 in normal human neurodevelopment.MAK is funded by an NIHR Research Professorship and receives funding from the Wellcome Trust, Great Ormond Street Children's Hospital Charity, and Rosetrees Trust. E.M. received funding from the Rosetrees Trust (CD-A53) and Great Ormond Street Hospital Children's Charity. K.G. received funding from Temple Street Foundation. A.M. is funded by Great Ormond Street Hospital, the National Institute for Health Research (NIHR), and Biomedical Research Centre. F.L.R. and D.G. are funded by Cambridge Biomedical Research Centre. K.C. and A.S.J. are funded by NIHR Bioresource for Rare Diseases. The DDD Study presents independent research commissioned by the Health Innovation Challenge Fund (grant number HICF-1009-003), a parallel funding partnership between the Wellcome Trust and the Department of Health, and the Wellcome Trust Sanger Institute (grant number WT098051). We acknowledge support from the UK Department of Health via the NIHR comprehensive Biomedical Research Centre award to Guy's and St. Thomas' National Health Service (NHS) Foundation Trust in partnership with King's College London. This research was also supported by the NIHR Great Ormond Street Hospital Biomedical Research Centre. J.H.C. is in receipt of an NIHR Senior Investigator Award. The research team acknowledges the support of the NIHR through the Comprehensive Clinical Research Network. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR, Department of Health, or Wellcome Trust. E.R.M. acknowledges support from NIHR Cambridge Biomedical Research Centre, an NIHR Senior Investigator Award, and the University of Cambridge has received salary support in respect of E.R.M. from the NHS in the East of England through the Clinical Academic Reserve. I.E.S. is supported by the National Health and Medical Research Council of Australia (Program Grant and Practitioner Fellowship)

    Childhood sexual abuse severity and disclosure as predictors of depression among adult African-American and Latina women.

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    A history of childhood sexual abuse (CSA) has been associated with adult depression, but data on abuse severity and disclosure are scant, particularly among low-income ethnic minorities. CSA often co-occurs with other adversities, which also increase the risk of depression. This study examined the peritrauma variable of abuse severity and the posttrauma variables of disclosure and self-blame as predictors of current depression symptoms in 94 low-income African-American and Latina women with histories of CSA. After controlling for nonsexual childhood adversity and adult burden (i.e., chronic stress), severe CSA overall was associated with higher depression scores, especially among Latinas who disclosed their abuse. Depression symptoms among African-American women were highest in those who disclosed and reported high levels of self-blame at the time of the incident. The link between depression and specific peri- and post-CSA factors in minority women may help guide future interventions

    Research Mentoring: Expanding the Role of Writing Tutors

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    Fall 1994: Carolyn, a writing center tutor in a New England college, is working with a first-year student to revise a rough draft of his research-based argument paper. She notices a fundamental problem. While the student has the sufficient number of references, the sources are inappropriate for the writing task. What began as a typical writing tutorial now morphs into a personalized library instruction session, requiring the tutor to reposition herself as a guide through the research stage of the writing process. Fall 2012: Almost two decades later, Carolyn is a reference and instruction librarian at the University of New Hampshire at Manchester (UNHM). Students bring to her library instructional sessions only vague understandings of why or how to evaluate their sources, just as they did when she tutored. Carolyn knows that good writing depends upon good research. She believes that, unless they are educated, students run the risk of producing fundamentally flawed arguments based on erroneous, inaccurate, or biased information. Her intervention is even more critical than it was in the past because electronic availability has dropped students into a sea of information they are often ill-equipped to navigate
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