132 research outputs found

    Beneficios para la industria, como hacer un uso responsable de la energía - Ejemplo de una auditoria energética en una industria alimenticia

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    Se presenta en este trabajo un estudio de auditoría energética en una industria. Para el mismo se efectuó una caracterización de las instalaciones y se realizaron mediciones de las magnitudes involucradas. Finalmente se presentan distintas acciones y una serie de medidas a implementar a los efectos de hacer un uso más eficiente de la energía, logrando importantes ahorros anuales de energía. La importancia del presente estudio se basa en lo importante que es realizar una auditoria energética ya que se puede definir como una investigación integral de todos y cada uno de los aspectos, tanto técnicos como económicos, que afectan directa o bien de forma indirecta al consumo de las distintas energías. Teniendo además en cuenta que el uso eficiente de la energía es una condición necesaria para la sustentabilidad energética y ambiental a largo plazo.A study of an energy audit is presented in this paper in a refrigerating industry. For the same characterization of the facility was performed and measurements of the magnitudes involved were made. Finally different actions and a series of measures to be implemented for the purpose of making more efficient use of energy, achieving significant annual energy savings are presented. The importance of this study is based on how important it is to perform an energy audit as it can be defined as a comprehensive research of each and every one of the aspects, both technical and economic, affecting directly and indirectly the consumption of different energies. Considering also that the efficient use of energy is a necessary condition for energy and long-term environmental sustainability.Tema 7: Uso eficiente y racional de la energía. Políticas y economía energética.Facultad de Arquitectura y Urbanism

    Beneficios para la industria, como hacer un uso responsable de la energía - Ejemplo de una auditoria energética en una industria alimenticia

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    Se presenta en este trabajo un estudio de auditoría energética en una industria. Para el mismo se efectuó una caracterización de las instalaciones y se realizaron mediciones de las magnitudes involucradas. Finalmente se presentan distintas acciones y una serie de medidas a implementar a los efectos de hacer un uso más eficiente de la energía, logrando importantes ahorros anuales de energía. La importancia del presente estudio se basa en lo importante que es realizar una auditoria energética ya que se puede definir como una investigación integral de todos y cada uno de los aspectos, tanto técnicos como económicos, que afectan directa o bien de forma indirecta al consumo de las distintas energías. Teniendo además en cuenta que el uso eficiente de la energía es una condición necesaria para la sustentabilidad energética y ambiental a largo plazo.A study of an energy audit is presented in this paper in a refrigerating industry. For the same characterization of the facility was performed and measurements of the magnitudes involved were made. Finally different actions and a series of measures to be implemented for the purpose of making more efficient use of energy, achieving significant annual energy savings are presented. The importance of this study is based on how important it is to perform an energy audit as it can be defined as a comprehensive research of each and every one of the aspects, both technical and economic, affecting directly and indirectly the consumption of different energies. Considering also that the efficient use of energy is a necessary condition for energy and long-term environmental sustainability.Tema 7: Uso eficiente y racional de la energía. Políticas y economía energética.Facultad de Arquitectura y Urbanism

    Maternal Serum Meteorin Levels and the Risk of Preeclampsia

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    BACKGROUND: Meteorin (METRN) is a recently described neutrophic factor with angiogenic properties. This is a nested case-control study in a longitudinal cohort study that describes the serum profile of METRN during different periods of gestation in healthy and preeclamptic pregnant women. Moreover, we explore the possible application of METRN as a biomarker. METHODS AND FINDINGS: Serum METRN was measured by ELISA in a longitudinal prospective cohort study in 37 healthy pregnant women, 16 mild preeclamptic women, and 20 healthy non-pregnant women during the menstrual cycle with the aim of assessing serum METRN levels and its correlations with other metabolic parameters. Immunostaining for METRN protein was performed in placenta. A multivariate logistic regression model was proposed and a classifier model was formulated for predicting preeclampsia in early and middle pregnancy. The performance in classification was evaluated using measures such as sensitivity, specificity, and the receiver operating characteristic (ROC) curve. In healthy pregnant women, serum METRN levels were significantly elevated in early pregnancy compared to middle and late pregnancy. METRN levels are significantly lower only in early pregnancy in preeclamptic women when compared to healthy pregnant women. Decision trees that did not include METRN levels in the first trimester had a reduced sensitivity of 56% in the detection of preeclamptic women, compared to a sensitivity of 69% when METRN was included. CONCLUSIONS: The joint measurements of circulating METRN levels in the first trimester and systolic blood pressure and weight in the second trimester significantly increase the probabilities of predicting preeclampsia

    La producción de la Universidad española en Física, reflejada en las publicaciones españolas y extranjeras

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    The scientific productíon of Spanish Universities in the field of Physics for the period 1986-88 is analyzed with data obtaincd from two databases: INSPEC, whích covcrs publications in foreign journals and also, but only in a selective way, those published in a certain numbcr of Spanísh journals; and ICYT, which covcrs comprehcnsively ali original papcrs published in Spanish journals. Comparison of the two series of data Ieads to ccrtain conclusions as rcgards the trends to publish in foreign journals. A further comparison is made betwcen the periods 1982-85 and 1986-88, with thc data obtained from INSPEC.Se analiza la producción científica de la Universidad española en el campo de la Física, y en el período 1986-88, a través de dos bases de datos: INSPEC, que recoge lo publicado en revistas extranjeras y también, aunque de modo selectivo, en cierto número de revistas españolas; e ICYT, que recoge exhaustivamente todos los trabajos originales publicados en revistas españolas. La comparación entre ambas series de datos permite deducir tendencias de publícación en el extranjero. Asimismo se analizan comparativamente los periodos 1982-85 y 1986-88, con los datos obtenidos de INSPEC

    Association of interatrial septal abnormalities with cardiac impulse conduction disorders in adult patients: experience from a tertiary center in Kosovo

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    Interatrial septal disorders, which include: atrial septal defect, patent foramen ovale and atrial septal aneurysm, are frequent congenital anomalies found in adult patients. Early detection of these anomalies is important to prevent their hemodynamic and/or thromboembolic consequences. The aims of this study were: to assess the association between impulse conduction disorders and anomalies of interatrial septum; to determine the prevalence of different types of interatrial septum abnormalities; to assess anatomic, hemodynamic, and clinical consequences of interatrial septal pathologies. Fifty-three adult patients with impulse conduction disorders and patients without ECG changes but with signs of interatrial septal abnormalities, who were referred to our center for echocardiography, were included in a prospective transesophageal echocardiography study. Interatrial septal anomalies were detected in around 85% of the examined patients. Patent foramen ovale was encountered in 32% of the patients, and in combination with atrial septal aneurysm in an additional 11.3% of cases. Atrial septal aneurysm and atrial septal defect were diagnosed with equal frequency in 20.7% of our study population. Impulse conduction disorders were significantly more suggestive of interatrial septal anomalies than clinical signs and symptoms observed in our patients (84.91% vs 30.19%, P=0.002). Right bundle branch block was the most frequent impulse conduction disorder, found in 41 (77.36%) cases. We conclude that interatrial septal anomalies are highly associated with impulse conduction disorders, particularly with right bundle branch block. Impulse conduction disorders are more indicative of interatrial septal abnormalities in earlier stages than can be understood from the patient’s clinical condition

    Multiple myeloma and SARS-CoV-2 infection : clinical characteristics and prognostic factors of inpatient mortality

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    There is limited information on the characteristics, prognostic factors, and outcomes of patients with multiple myeloma (MM) hospitalized with COVID-19. This retrospective case series investigated 167 patients reported from 73 hospitals within the Spanish Myeloma Collaborative Group network in March and April, 2020. Outcomes were compared with 167 randomly selected, contemporary, age-/sex-matched noncancer patients with COVID-19 admitted at six participating hospitals. Among MM and noncancer patients, median age was 71 years, and 57% of patients were male; 75 and 77% of patients, respectively, had at least one comorbidity. COVID-19 clinical severity was moderate-severe in 77 and 89% of patients and critical in 8 and 4%, respectively. Supplemental oxygen was required by 47 and 55% of MM and noncancer patients, respectively, and 21%/9% vs 8%/6% required noninvasive/invasive ventilation. Inpatient mortality was 34 and 23% in MM and noncancer patients, respectively. Among MM patients, inpatient mortality was 41% in males, 42% in patients aged >65 years, 49% in patients with active/progressive MM at hospitalization, and 59% in patients with comorbid renal disease at hospitalization, which were independent prognostic factors on adjusted multivariate analysis. This case series demonstrates the increased risk and identifies predictors of inpatient mortality among MM patients hospitalized with COVID-19

    Estudio de calidad de la adherencia a la primera etapa de implementación de un protocolo de sedoanalgesia en una UCI médico-quirúrgica

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    Recomendaciones actuales sugieren manejar sedoanalgesia (SA) ligera y guiada por objetivos en pacientes en ventilación mecánica (VM). Datos previos de nuestra UCI (2010) de evaluación del estado de alerta con escala de RASS, indicaron un nivel de sedación profunda. La indicación se realizaba según el criterio de cada médico tratante. Surge la iniciativa del diseño e implementación de un protocolo de SA en etapas, para hacer frente a este problemaFacultad de Ciencias Médicas (FCM
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