381 research outputs found

    Neuroradiologic aspects of pediatric orthotopic liver transplantation

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    To investigate the occurrence of neurologic symptomatology in pediatric orthotopic liver transplantation patients and to evaluate the utility of CT in uncovering the origin of their symptoms, we reviewed the medical records and head scans (when performed) of 71 patients. Neurologic problems occurred in 48%; the majority involved seizures, mental status changes, or coma. Patients who only had seizures generally had negative CT scans, except for two patients with minimal subarachnoid hemorrhages. Three-quarters of the comatose patients, however, had significant intracerebral hemorrhages defined by CT. Prominent sulci and ventricles were found in approximately one-third of the patients scanned, but did not correlate with symptomatology or steroid dose

    Computer Modeling: The Adjunct Micro Technique for Lipids

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    Chemistry by computer provides access to microsystem information not readily achieved by other means. Simple computational analysis of saturated triglyceride polymorphism by molecular mechanics within constraints provided by X-ray data show that polymethylene interactions determine hydrocarbon crystal properties when they account for more than 60 percent of the total molecular interaction energy. Modeling predicts multiple , nearly equivalent, a -form triglycerides and a -form character in liquid near-crystalline triglycerides. Symmetrical molecules pack better than asymmetric molecules in a-form configurations and transform readily to 13\u27forms if activated sufficiently to disrupt lateral chain interaction and allow dimensional displacements during transformation. The formation of P\u27-forms, thought important for quality in certain foods, may depend on controlling both the configuration of a-form precursors and the sequence of molecular events during the transformation

    Taphonomic evidence for Late Pleistocene transitions in coral reef community composition, San Salvador, Bahamas

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    Over the past 20 years, the composi­ tion of Caribbean coral reef communities has changed drastically. The ecology of modern reefs, however, has only been studied since the late 1950\u27s. Thus, only a thirty year data set on changes in coral community composi­ tion exists with which to assess the current faunal transition. The need for longer term data has been recognized by marine ecologists as essential for determining whether the cur­ rent transition is part of a long tenn cycle or itself is an unprecedented phenomenon. On Telephone Pole Reef, San Salva­ dor, Bahamas, a transition from Acropora cer­ vicornis dominance to that of Porites porites has been observed in recent years. Dead A. cervicornisa specimens found at this locality display high levels of taphonomic alteration, which may serve as a marker for prior transi­ tions of this type in other reefs. It is not known, however, if a transition of this nature occurred in the past. The fossil record provides precisely the database required for answering this ques­ tion. A detailed examination of the fossil reef at Cockburn Town, San Salvador, Bahamas, has been performed in order to evaluate whether it preserves evidence of community transitions analogous to those occurring today. Specimens of fossil corals were collected from six stratigraphic horizons and a variety of ta-phonomic were obtained. Although different styles of preservation characterize specific ho­ rizons in the fossil reef, evidence does not ex­ ist for a Pleistocene precedent for the transi­ tion currently observed offshore

    Campus Chronicle

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    https://openspace.dmacc.edu/campuschronicle/1275/thumbnail.jp

    Campus Chronicle

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    https://openspace.dmacc.edu/campuschronicle/1276/thumbnail.jp

    Imaging Venous Angiomas

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    Chapter A2.3 discusses non‐invasive cerebral venous imaging for those patients thought to have venous angiomas using Magnetic Resonance Venography (MRV) and MRI. Use of specific protocols is described.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/145264/1/cpmia0203.pd

    Campus Chronicle

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    https://openspace.dmacc.edu/campuschronicle/1272/thumbnail.jp

    Implementing a Current Research Information System (CRIS) in Canada

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    The practice of research information management (RIM) is becoming more important as the research environment becomes increasingly complex, competitive and globalized. National mandates and requirements of national funding agencies regarding open access and research data management are creating added incentives for universities to showcase their publications and make them available in an open access format. Libraries are well situated to offer expertise throughout the adoption of a research information management system by a university. In aligning themselves with the wider strategic plans of the institution, libraries can use this as a platform to further their own goals and communicate their value and place in the institution by championing open access, ensuring discoverability and supporting the researcher endeavour. Dalhousie University is in the process of implementing a Research Information System (RIS) with the goal of providing a number of benefits to the university and its researchers. RIS serve to aid researchers when applying to funding agencies by creating consistent, standardized CVs, decrease workload when generating annual reports, increase the visibility and discoverability of an institution to potential collaborators and research contacts, augment the research currently being performed at an institution and make it more widely available, and manage and measure the research impact of individual researchers and institutions. While some challenges exist at Dalhousie that require mitigation and attention, the institution stands to benefit greatly from the implementation of this system

    Campus Chronicle

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    https://openspace.dmacc.edu/campuschronicle/1283/thumbnail.jp
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