8,633 research outputs found

    Hematology and serum chemistry values in captive and wild pichis, Zaedyus pichiy (Mammalia, Dasypodidae)

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    As part of an ongoing study on the health status of pichis, Zaedyus pichiy (Mammalia, Dasypodidae), blood was collected under manual restraint from 72 free-ranging pichis captured in Mendoza Province, Argentina, between November 2001 and December 2006, and from 22 captive-kept pichis in January 2007. Reference values were established for hematology and serum chemistry. Pichis had lower leukocyte counts and higher mean corpuscular volumes than most other mammals. Blood values were similar for captive and wild pichis, and only a few significant differences were found among genders or age classes.Fil: Superina, Mariella. Department Of Biological Sciences; Estados Unidos. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - Mendoza. Instituto de Medicina y BiologĂ­a Experimental de Cuyo; ArgentinaFil: Mera y Sierra, Roberto. Universidad "Juan AgustĂ­n Maza". Facultad de Ciencias Veterinarias y Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias MĂ©dicas; Argentin

    ¡No Me Juzguez! Latino Parent Perceptions of the Lived Experience of Participation in Their Child\u27s Education: A Transcendental Phenomenological Study

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    The purpose of this phenomenological study was to understand Latino parent perceptions of the lived experience of participation in their middle school child’s education. Participants were chosen through convenience and snowball sampling with the criterion that each participant was a Latino parent of a child who attended a middle school in Lehigh Valley, Pennsylvania. “Lehigh Valley” is the pseudonym used for the school district and the area in which the study was conducted. Theories that guided this study and the research questions were parental involvement theory and cultural capital theory. The central question for this study was focused on Latino parents’ perceptions of the way their life experiences impact their participation in their middle school child’s education. In addition, the three research subquestions were designed to investigate Latino parents’ perceptions of the ways relationships between parenting at home and school-based involvement, their experiences with school personnel, and community program involvement impact their participation in their middle school child’s education. Data—in the form of interviews, a focus group interview, observations, and documentation of field notes—were collected and analyzed in order to depict the essence of the phenomenon. Finally, data analysis included direct interpretation of participant interviews and experiences, narratives, and memoing. This research adds to the current literature by providing the voice of the Latino parent. This study’s findings confirmed that Latino parents believe their life experiences impact their participation in their child’s education. Participants also corroborated the findings of current literature regarding parental involvement and cultural capital in education

    Conveniente renovaciĂłn del personal docente de nuestras universidades y escuelas profesionales conferencia...

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    Copia digital. Valladolid : Junta de Castilla y LeĂłn. ConsejerĂ­a de Cultura y Turismo, 2009-201

    Gauge Theory Description of Spin Ladders

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    A s=1/2 antiferromagnetic spin chain is equivalent to the two-flavor massless Schwinger model in an uniform background charge density in the strong coupling. The gapless mode of the spin chain is represented by a massless boson of the Schwinger model. In a two-leg spin ladder system the massless boson aquires a finite mass due to inter-chain interactions. The gap energy is found to be about .25 k |J'| when the inter-chain Heisenberg coupling J' is small compared with the intra-chain Heisenberg coupling. k is a constant of O(1). It is also shown that a cyclically symmetric N-leg ladder system is gapless or gapful for an odd or even N, respectively.Comment: 8 pages. CORRIGENDUM has been incorporated. (A factor 2 error has been corrected.

    COVID-19 Mortality Risk Prediction Using X-Ray Images

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    The pandemic caused by coronavirus COVID-19 has already had a massive impact in our societies in terms of health, economy, and social distress. One of the most common symptoms caused by COVID-19 are lung problems like pneumonia, which can be detected using X-ray images. On the other hand, the popularity of Machine Learning models has grown exponentially in recent years and Deep Learning techniques have become the state-of-the-art for image classification tasks and is widely used in the healthcare sector nowadays as support for clinical decisions. This research aims to build a prediction model based on Machine Learning, including Deep Learning, techniques to predict the mortality risk of a particular patient given an X-ray and some basic demographic data. Keeping this in mind, this paper has three goals. First, we use Deep Learning models to predict the mortality risk of a patient based on this patient X-ray images. For this purpose, we apply Convolutional Neural Networks as well as Transfer Learning techniques to mitigate the effect of the reduced amount of COVID19 data available. Second, we propose to combine the prediction of this Convolutional Neural Network with other patient data, like gender and age, as input features of a final Machine Learning model, that will act as second and final layer. This second model layer will aim to improve the goodness of fit and prediction power of our first layer. Finally, and in accordance with the principle of reproducible research, the data used for the experiments is publicly available and we make the implementations developed easily accessible via public repositories. Experiments over a real dataset of COVID-19 patients yield high AUROC values and show our two-layer framework to obtain better results than a single Convolutional Neural Network (CNN) model, achieving close to perfect classification

    Vector Borne Diseases in Mid Western Argentina, First Report of Setaria Equina [Nematoda: Onchocercidae] in A Horse [Equus caballus]

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    ARTĂŤCULO PUBLICADO EN REVISTA EXTERNA. Vector borne diseases are spreading worldwide. Companion animals can be useful as sentinels for disease surveillance. Setaria spp. are filarial nematodes transmitted by Aedes spp. and Culex spp. Setaria equina has been reported in Asia, Africa and North America. This zoonotic nematode is frequently asymptomatic in horses, except during its erratic migrations. Filarial worms have a tropism for ocular and nervous tissues, having important implications in veterinary and public health. In mid west Argentina, Dirofilaria immitis has already been described affecting a woman and dogs. There are no published reports of Setaria equina in Argentina. During spring of 2016, an adult mare died and at necropsy, nematodes were found in the peritoneal cavity. These parasites were morphologically identified as Setaria equina. The occurrence of this disease in the region highlights the importance of entomologic and sanitary surveillance. Sitio de la revista: https://austinpublishinggroup.com/december-2017/published-articles-11.ph

    FormaciĂłn y desarrollo cultural de la audiencia, retos del nuevo universo radiofĂłnico

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    The methodological tool of the dialogue group with women: an "empowerment" mechanism

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    Sumario. Marco conceptual. Caracterización general del dispositivo( Objetivo del dispositivo. La función de la coordinación. Esquema metodológico básico). Experiencia de un grupo de diálogo con mujeres( Introducción. Caracterización de las mujeres Beneficiarias. Esquema general del proceso.Desarrollo de la experiencia). Resumen de incidencias y buenas prácticas. Notas y bibliografía. Summary.. Conceptual Framework. General Characterisation of the Mechanism ( The Objective of the Mechanism. The Function of the Coordination.Basic Methodological Outline). The Experience of a Women's Dialogue Group( Introduction.Characterisation of Beneficiary Women. General Outline of the Process. Development of the Experience). Summary of incidents and good practice. Notes and Bibliograph

    Reactor mixing angle from hybrid neutrino masses

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    In terms of its eigenvector decomposition, the neutrino mass matrix (in the basis where the charged lepton mass matrix is diagonal) can be understood as originating from a tribimaximal dominant structure with small deviations, as demanded by data. If neutrino masses originate from at least two different mechanisms, referred to as "hybrid neutrino masses", the experimentally observed structure naturally emerges provided one mechanism accounts for the dominant tribimaximal structure while the other is responsible for the deviations. We demonstrate the feasibility of this picture in a fairly model-independent way by using lepton-number-violating effective operators, whose structure we assume becomes dictated by an underlying A4A_4 flavor symmetry. We show that if a second mechanism is at work, the requirement of generating a reactor angle within its experimental range always fixes the solar and atmospheric angles in agreement with data, in contrast to the case where the deviations are induced by next-to-leading order effective operators. We prove this idea is viable by constructing an A4A_4-based ultraviolet completion, where the dominant tribimaximal structure arises from the type-I seesaw while the subleading contribution is determined by either type-II or type-III seesaw driven by a non-trivial A4A_4 singlet (minimal hybrid model). After finding general criteria, we identify all the ZN\mathbb{Z}_N symmetries capable of producing such A4A_4-based minimal hybrid models.Comment: 18 pages, 5 figures. v3: section including sum rules added, accepted by JHE
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