832 research outputs found

    A Biased Topic Modeling Approach for Case Control Study from Health Related Social Media Postings

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    abstract: Online social networks are the hubs of social activity in cyberspace, and using them to exchange knowledge, experiences, and opinions is common. In this work, an advanced topic modeling framework is designed to analyse complex longitudinal health information from social media with minimal human annotation, and Adverse Drug Events and Reaction (ADR) information is extracted and automatically processed by using a biased topic modeling method. This framework improves and extends existing topic modelling algorithms that incorporate background knowledge. Using this approach, background knowledge such as ADR terms and other biomedical knowledge can be incorporated during the text mining process, with scores which indicate the presence of ADR being generated. A case control study has been performed on a data set of twitter timelines of women that announced their pregnancy, the goals of the study is to compare the ADR risk of medication usage from each medication category during the pregnancy. In addition, to evaluate the prediction power of this approach, another important aspect of personalized medicine was addressed: the prediction of medication usage through the identification of risk groups. During the prediction process, the health information from Twitter timeline, such as diseases, symptoms, treatments, effects, and etc., is summarized by the topic modelling processes and the summarization results is used for prediction. Dimension reduction and topic similarity measurement are integrated into this framework for timeline classification and prediction. This work could be applied to provide guidelines for FDA drug risk categories. Currently, this process is done based on laboratory results and reported cases. Finally, a multi-dimensional text data warehouse (MTD) to manage the output from the topic modelling is proposed. Some attempts have been also made to incorporate topic structure (ontology) and the MTD hierarchy. Results demonstrate that proposed methods show promise and this system represents a low-cost approach for drug safety early warning.Dissertation/ThesisDoctoral Dissertation Computer Science 201

    "Monsters on the Brain: An Evolutionary Epistemology of Horror"

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    The article discusses the evolutionary development of horror and fear in animals and humans, including in regard to cognition and physiological aspects of the brain. An overview of the social aspects of emotions, including the role that emotions play in interpersonal relations and the role that empathy plays in humans' ethics, is provided. An overview of the psychological aspects of monsters, including humans' simultaneous repulsion and interest in horror films that depict monsters, is also provided

    v. 82, issue 19, April 16, 2015

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    Trombocitopenia neonatal imune - revisĂŁo

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    Introduction: Thrombocytopenia is the most frequent hematological change in the neonatal period, with immune thrombocytopenia as the main cause of moderate-to-severe thrombocytopenia in apparently healthy newborns. Immune thrombocytopenia in the fetus or newborn may result from platelet alloantibodies against paternal antigens inherited by the fetus (alloimmune thrombocytopenia) or platelet autoantibodies due to maternal autoimmune disease (autoimmune thrombocytopenia).Objetives: To review published literature about immune thrombocytopenia in newborns, including the latest advances in pathogenesis, diagnosis, treatment, and prevention.Results: Neonatal alloimmune thrombocytopenia is the most common cause of severe thrombocytopenia and intracranial hemorrhage in term neonates. Clinical presentation varies from mild thrombocytopenia to life-threatening bleeding and death. As maternal screening is not routinely performed, most cases are diagnosed in the first child. Despite intensive research, a consensus strategy for prevention and treatment of the condition is lacking. Diagnosis of neonatal autoimmune thrombocytopenia is usually apparent from maternal medical history and thrombocytopenia. Although maternal immune thrombocytopenic purpura does not carry a high risk of perinatal hemorrhage, it may lead to thrombocytopenia in the newborn, mostly mild-to-moderate. Clinical presentation varies from no symptoms to mucocutaneous signs of thrombocytopenia and may persist for weeks to months requiring long-term monitoring. Conclusions: Fetal and Neonatal alloimmune thrombocytopenia can cause severe disease in the affected fetus or newborn. Facing the lack of routine antenatal screening, the strategies currently proposed for pregnancies at risk. We also discussed the latest research and therapies in development, aiming at potential improvements in diagnosis, treatment, and prevention of this disease. Neonatal autoimmune thrombocytopenia may cause long-lasting low platelet count, that need regular checking.info:eu-repo/semantics/publishedVersio

    An Exploration of Loyalty, Complicity, and Female Resistance in Julia Alvarez\u27s In the Time of the Butterflies

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    Senior Project submitted to The Division of Languages and Literature of Bard College

    A best-practice position statement on pregnancy after kidney transplantation: focusing on the unsolved questions. The Kidney and Pregnancy Study Group of the Italian Society of Nephrology

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    Kidney transplantation (KT) is often considered to be the method best able to restore fertility in a woman with chronic kidney disease (CKD). However, pregnancies in KT are not devoid of risks (in particular prematurity, small for gestational age babies, and the hypertensive disorders of pregnancy). An ideal profile of the potential KT mother includes “normal” or “good” kidney function (usually defined as glomerular filtration rate, GFR ≥ 60 ml/min), scant or no proteinuria (usually defined as below 500 mg/dl), normal or well controlled blood pressure (one drug only and no sign of end-organ damage), no recent acute rejection, good compliance and low-dose immunosuppression, without the use of potentially teratogen drugs (mycophenolic acid and m-Tor inhibitors) and an interval of at least 1–2 years after transplantation. In this setting, there is little if any risk of worsening of the kidney function. Less is known about how to manage “non-ideal” situations, such as a pregnancy a short time after KT, or one in the context of hypertension or a failing kidney. The aim of this position statement by the Kidney and Pregnancy Group of the Italian Society of Nephrology is to review the literature and discuss what is known about the clinical management of CKD after KT, with particular attention to women who start a pregnancy in non-ideal conditions. While the experience in such cases is limited, the risks of worsening the renal function are probably higher in cases with markedly reduced kidney function, and in the presence of proteinuria. Well-controlled hypertension alone seems less relevant for outcomes, even if its effect is probably multiplicative if combined with low GFR and proteinuria. As in other settings of kidney disease, superimposed preeclampsia (PE) is differently defined and this impairs calculating its real incidence. No specific difference between non-teratogen immunosuppressive drugs has been shown, but calcineurin inhibitors have been associated with foetal growth restriction and low birth weight. The clinical choices in cases at high risk for malformations or kidney function impairment (pregnancies under mycophenolic acid or with severe kidney-function impairment) require merging clinical and ethical approaches in which, beside the mother and child dyad, the grafted kidney is a crucial “third element”

    Montana Kaimin, September 11, 2008

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    Student newspaper of the University of Montana, Missoula.https://scholarworks.umt.edu/studentnewspaper/6193/thumbnail.jp
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