7,957 research outputs found

    Political rivalry in Rhode Island: William H. Vanderbilt vs. J. Howard McGrath: the wiretapping case

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    The 1939 wiretapping case bared many of the intra- and inter- party struggles that had been festering during the interwar years. Pitting Democrat J. Howard McGrath and Republican William H. Vanderbilt, two energetic and ambitious rival politicians, against each other, this scandal raised the issues of the right to privacy and the legality of using evidence obtained through electronic surveillance. Additionally, the case exposed the heated rivalry between the old and new guard within the Republican Party, while simultaneously restoring harmony among the competing forces within the Democrat Party

    The Partially-Split Hall Bar: Tunneling in the Bosonic Integer Quantum Hall Effect

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    We study point-contact tunneling in the integer quantum Hall state of bosons. This symmetry-protected topological state has electrical Hall conductivity equal to 2e2/h2 e^2/h and vanishing thermal Hall conductivity. In contrast to the integer quantum Hall state of fermions, a point contact can have a dramatic effect on the low energy physics. In the absence of disorder, a point contact generically leads to a partially-split Hall bar geometry. We describe the resulting intermediate fixed point via the two-terminal electrical (Hall) conductance of the edge modes. Disorder along the edge, however, both restores the universality of the two-terminal conductance and helps preserve the integrity of the Hall bar within the relevant parameter regime.Comment: 12 pages, 5 figures; v.2: typos fixed and clarified some argument

    "Capital Intensity and U.S. Country Population Growth during the Late Nineteenth Century"

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    The United States witnessed substantial growth in manufacturing and urban populations during the last half of the nineteenth century. To date, no convincing evidence has been presented to explain the shift in population to urban areas. We find evidence that capital intensity, particularly new capital in the form of steam horsepower, played a significant role in drawing labor into counties and by inference into urban areas. This provides support for the hypothesis that the locational decisions of manufacturers and their placement of capital in urban areas fueled urban growth in the nineteenth century.urbanization, capital intensity, regional population growth, technological change

    Use of a Modified POGIL Exercise to Teach Bacterial Transformation in a Microbiology Course

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    Assignments incorporating student collaborations to hone critical thinking skills in higher education have been proven to enhance student learning.  Abstract concepts, such as bacterial transformation are challenging for students to understand.  One way to overcome this learning obstacle is to provide students with collaborative learning activities during class.  A modified process-oriented guided-inquiry learning exercise (POGIL) was used to facilitate learning of bacterial transformation in a microbiology course for allied health majors at a community college.  This class activity involved small groups working together on short background test, and a series of questions pertaining to the background and experimental data.  Students were given a summary diagram to assist them in completing this collaborative exercise.  

    Feed my lambs.

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    Thesis (M.S.)--Boston Universit

    Attitudes and reported practice of paediatricians and child psychiatrists regarding the assessment and treatment of ADHD in Ireland

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    Objectives. This mixed-method national survey has obtained original data on attention deficit hyperactivity disorder (ADHD) attitudes, assessment and treatment regimes reported by paediatricians and child psychiatrists; and has compared their clinics. It has examined the extent of involvement of Irish paediatricians in the management of ADHD. Methods. A questionnaire was designed, based on a review of literature and ADHD guidelines, and piloted by expert clinicians. Universal recruitment was conducted among Child and Adolescent Mental Health Services (CAMHS) consultants (n = 71) and community/general paediatric consultants (n = 72). Quantitative and qualitative data was collected and analysed. Results. There was an overall response rate of 43%. A dedicated ADHD clinic is offered in 79% of CAMHS services, but only in one paediatric service. Participants reported that the assessment of ADHD involves multidisciplinary work and this was only established in CAMHS clinics. Medication is initiated by 82% of child psychiatrists and only 22% of paediatricians. Conclusions. This first national study of ADHD attitudes and practices presents comprehensive data regarding the management of children with ADHD in CAMHS and paediatric settings in Ireland. Paediatricians reported a minor role in managing ADHD. Study limitations are related to subjective reporting rather than case note audit, and a moderate response rate for the paediatricians’ participants
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