6,415 research outputs found

    Obstructing finite surgery

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    For a fixed p, there are only finitely many elliptic 3-manifolds given by p/q-surgery on a knot in S^3. We prove this result by using the Heegaard Floer correction terms (d-invariants) to obstruct elliptic manifolds from arising as knot surgery.Comment: 16 page

    Frontotemporal dementia: the impact of patient behavioral symptoms on the physical and mental health of family caregivers.

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    BackgroundProviding informal support to someone with frontotemporal dementia (FTD) could be very stressful. Clarifying the relationship between patient behavioral problems and caregiver health could spur future research on effective symptom management strategies.MethodsSixty-one FTD family caregivers participated in a postal survey.ResultsPatient symptom severity was negatively associated with caregiver mental health (r = -0.26, p < 0.05) but not significantly associated with caregiver physical health. In a regression analysis, caregiver emotional distress from patient behaviors made a statistically significant contribution to caregiver mental health, explaining approximately 10% of its variance.ConclusionThis study underscores the importance of focusing on FTD caregivers' perceived emotional distress from patient behavioral problems and ensuring they are getting the appropriate support they need

    Incorporation of tritiated cytidine into ribonucleic acid by isolated pea nuclei

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    A new method for the isolation of the nuclei from plant tissue has been devised. This method consists in passing the plant tissue through a set of spring-loaded, counter-rotating rollers and collecting the liberated nuclei in sucrose solution containing calcium ions. A semi-automatic machine which couples the rollers with a special tissue chopping device has been constructed. It has been shown that nuclei obtained in this way actively incorporate cytidine-H3 into RNA. This incorporation is increased in the presence of nucleoside triphosphates and an energy-regenerating system

    Is the Health Care System Working for Adolescents? Perspectives From Providers in Boston, Denver, Houston, and San Francisco

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    Assesses healthcare system services for adolescents in four urban areas. Includes provider perspectives on how health insurance, managed care, and other factors facilitate or impede access. Discusses innovative programs, and offers recommendations

    The Development of Approaches to Curriculum Planning to Meet Academic and Professional Objectives

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    The importance of developing a curriculum which satisfies the broad objectives of professional education has been recognized widely. The balance between enhancing scholarship and developing vocational skills, the importance of relevant evaluation of the curriculum, students and teachers and the place of research in current professional education are all matters worthy of consideration by those responsible for professional education. This paper reflects upon the historic attitudes to education and traces the changes in approach which have been necessary to ensure the provision of appropriate learning experiences for students seeking a professional education today

    Study of Dietaries and Nutritional Status of Adolescent Indian Girls in Boarding Schools of the Dakotas

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    The adolescent period is recognized as a crucial one in the development of individuals. This study is centered on the nutritional status of girls who are in this stage of development. Cooperative regional studies by experiment stations and school lunch studies in several states have covered many phases of nutritional status for various population groups in recent years. Investigators agrees that there is need for further information in regard to the dietary practices and nutritional status of adolescents, and there appears to be the greatest concern with respect to adolescent girls. The average annual birth rate for Indians in the United States has shown in a public health service report as 32.1 per 1000 population is contras5ted to the 24.5 births for all races in the United States in the years 1949-53. Anthropological, sociological, and general health studies says Indian population groups have pointed up the importance of additional information about dietary practices and nutritional status. The present study is part of a larger one in dietary intake and certain physical and biochemical manners of 7 to 14 year old boys and girls in Indian boarding schools. The purpose of the study was to obtain information which should enable investigators to assess the nutritional status of the Indian children. This study includes observations on Indian girls 12 to 14 years old only
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