105 research outputs found

    An integrated approach to cause-of-death analysis: cause-deleted life tables and decompositions of life expectancy

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    This article integrates two methods that analyze the implications of various causes of death for life expectancy. One of the methods attributes changes in life expectancy to various causes of death; the other method examines the effect of removing deaths from a particular cause on life expectancy. This integration is accomplished by new formulas that make clearer the interactions among causes of death in determining life expectancy. We apply our approach to changes in life expectancy in the United States between 1970 and 2000. We demonstrate, and explain analytically, the paradox that cancer is responsible for more years of life lost in 2000 than in 1970 despite the fact that declines in cancer mortality contributed to advances in life expectancy between 1970 and 2000.causes of death, decomposition method, decomposition technique, demography, life expectancy, life tables, morbidity, mortality

    Las Herramientas Artísticas y el Desarrollo de las Habilidades Comunicativas en los Estudiantes de la Facultad de Educación y Ciencias de la Comunicación de la Universidad Nacional San Antonio Abad del Cusco

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    La investigación titulada “Las herramientas artísticas y el desarrollo de las habilidades comunicativas en los estudiantes de la facultad de Educación y Ciencias de la comunicación de la Universidad Nacional San Antonio Abad del Cusco.” tuvo como objetivo principal identificar la influencia de las herramientas artísticas y las habilidades comunicativas. El trabajo fue desarrollado desde enfoque cuantitativo, con un diseño no experimental, para ello se utilizó las técnicas del módulo, entrevista, prueba de entrada y salida, con el uso de los instrumentos correspondientes y con resultados procesados en el SPSS - 25. La población de estudio fueron los estudiantes de la facultad de Educación y ciencias de la comunicación de la Universidad Nacional San Antonio Abad del Cusco, teniendo una muestra de 17 estudiantes participantes al taller. La investigación fue desarrollada desde diversas teorías de las artes escénicas, que nos permitieron acercarnos a la realidad y comprender los aspectos que atañen en las habilidades comunicativas, situación que se desarrolla con las herramientas que se trabajan en las disciplinas artística. Al concluir la investigación, se determinó que las herramientas artísticas influyen y potencian las habilidades comunicativas de los estudiantes de la facultad de Educación y Ciencias de la Comunicación de la Universidad Nacional San Antonio Abad del Cusco. Los datos obtenidos en las pruebas pre y post, confirman con un nivel de significancia de p=,003 que las habilidades comunicativas de los estudiantes mejoraron, después de aplicar el módulo, taller “Canto, expresión y escenario”.Universidad Nacional de Educación Enrique Guzmán y ValleTesi

    Compilación Legislativa Universitaria

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    Compilación Legislativa Universitaria. Coordinador: Jorge Olvera García. Compiladores: Hiram Raúl Piña Libien y Evangelina Sales Sánchez. Edición: Diciembre 2014 (UAEMéx).A lo largo de sus más de 180 años de historia, la Universidad Autónoma del Estado de México ha tenido un papel determinante en la vida jurídica de la entidad que la alberga; ha sido cuna de numerosos juristas cuya labor hace posible que el Estado de Derecho se mantenga como una realidad tangible para la sociedad mexiquense. Todos estos hombres y mujeres bebieron de la fuente de una casa de estudios que ve en el respeto a las leyes una guía para todas las acciones que realiza en cumplimiento del compromiso que ha adquirido con la sociedad y que de igual manera, ha inculcado en todos sus estudiantes y trabajadores un profundo respeto por la ley y la convicción de que el mejor espacio para vivir es aquel en el que todos los integrantes de la sociedad ajustan sus actos a un marco de legalidad. Nuestros ideales de justicia tienen sus raíces en el pensamiento liberal de hombres que dedicaron su vida a hacer de México una nación libre de ignorancia, fanatismo e intolerancia; nuestra institución es consecuencia directa de la lucha ideológica de personajes como José María Luis Mora, a quien los mexicanos recordamos como honorable defensor de los intereses de la patria. Todos los actos de esta noble casa de estudios a través de los años han ido encaminados a honrar las aspiraciones de aquellos primeros liberales que añoraban transformar a nuestra nación a través del conocimiento y de un sistema de justicia congruente con las necesidades y las demandas de la ciudadaní

    Rat Indwelling Urinary Catheter Model of Candida albicans Biofilm Infection 2 3 4

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    ABSTRACT 24 Indwelling urinary catheters are commonly used in the management of 25 hospitalized patients. Candida can adhere to the device surface and propagate 26 as a biofilm. These communities differ from free-floating Candida, exhibiting high 27 tolerance to antifungal therapy. The significance of catheter-associated 28 candiduria is often unclear and treatment may be problematic considering the 29 biofilm drug resistant phenotype. Here we describe a rodent model for study of 30 urinary catheter-associated Candida albicans biofilm infection that mimics this 31 common process in patients. In the setting of a functioning, indwelling urinary 32 catheter in a rat, Candida proliferated as a biofilm on the device surface

    The Hidden Story of Heterogeneous B-raf V600E Mutation Quantitative Protein Expression in Metastatic Melanoma-Association with Clinical Outcome and Tumor Phenotypes

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    In comparison to other human cancer types, malignant melanoma exhibits the greatest amount of heterogeneity. After DNA-based detection of the BRAF V600E mutation in melanoma patients, targeted inhibitor treatment is the current recommendation. This approach, however, does not take the abundance of the therapeutic target, i.e., the B-raf V600E protein, into consideration. As shown by immunohistochemistry, the protein expression profiles of metastatic melanomas clearly reveal the existence of inter-and intra-tumor variability. Nevertheless, the technique is only semi-quantitative. To quantitate the mutant protein there is a fundamental need for more precise techniques that are aimed at defining the currently non-existent link between the levels of the target protein and subsequent drug efficacy. Using cutting-edge mass spectrometry combined with DNA and mRNA sequencing, the mutated B-raf protein within metastatic tumors was quantitated for the first time. B-raf V600E protein analysis revealed a subjacent layer of heterogeneity for mutation-positive metastatic melanomas. These were characterized into two distinct groups with different tumor morphologies, protein profiles and patient clinical outcomes. This study provides evidence that a higher level of expression in the mutated protein is associated with a more aggressive tumor progression. Our study design, comprised of surgical isolation of tumors, histopathological characterization, tissue biobanking, and protein analysis, may enable the eventual delineation of patient responders/non-responders and subsequent therapy for malignant melanoma

    The Human Melanoma Proteome Atlas—Complementing the melanoma transcriptome

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    The MM500 meta‐study aims to establish a knowledge basis of the tumor proteome to serve as a complement to genome and transcriptome studies. Somatic mutations and their effect on the transcriptome have been extensively characterized in melanoma. However, the effects of these genetic changes on the proteomic landscape and the impact on cellular processes in melanoma remain poorly understood. In this study, the quantitative mass‐spectrometry‐based proteomic analysis is interfaced with pathological tumor characterization, and associated with clinical data. The melanoma proteome landscape, obtained by the analysis of 505 well‐annotated melanoma tumor samples, is defined based on almost 16 000 proteins, including mutated proteoforms of driver genes. More than 50 million MS/MS spectra were analyzed, resulting in approximately 13,6 million peptide spectrum matches (PSMs). Altogether 13 176 protein‐coding genes, represented by 366 172 peptides, in addition to 52 000 phosphorylation sites, and 4 400 acetylation sites were successfully annotated. This data covers 65% and 74% of the predicted and identified human proteome, respectively. A high degree of correlation (Pearson, up to 0.54) with the melanoma transcriptome of the TCGA repository, with an overlap of 12 751 gene products, was found. Mapping of the expressed proteins with quantitation, spatiotemporal localization, mutations, splice isoforms, and PTM variants was proven not to be predicted by genome sequencing alone. The melanoma tumor molecular map was complemented by analysis of blood protein expression, including data on proteins regulated after immunotherapy. By adding these key proteomic pillars, the MM500 study expands the knowledge on melanoma disease

    Sodium restriction in patients with chronic heart failure and reduced ejection fraction: A randomized controlled trial

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    Background: Sodium restriction is recommended for patients with heart failure (HF) despite the lack of solid clinical evidence from randomized controlled trials. Whether or not sodium restrictions provide beneficial cardiac effects is not known. Methods: The present study is a randomized, double-blind, controlled trial of stable HF patients with ejection fraction ≤ 40%. Patients were allocated to sodium restriction (2 g of sodium/day) vs. control (3 g of sodium/day). The primary outcome was change in N-terminal pro-B-type natriuretic peptide (NT-proBNP) at 20 weeks. Secondary outcomes included quality of life and adverse safety events (HF readmission, blood pressure or electrolyte abnormalities). Results: Seventy patients were enrolled. Median baseline sodium consumption was 3268 (2225–4537) mg/day. Adherence to the intervention based on 24-hour urinary sodium was 32%. NT-proBNP and quality of life did not significantly change between groups (p > 0.05 for both). Adverse safety events were not significantly different between the arms (p > 0.6 for all). In the per protocol analysis, patients who achieved a sodium intake < 2500 mg/day at the  intervention conclusion showed improvements in NT-proBNP levels (between-group difference: –55%, 95% confidence interval –27 to –73%; p = 0.002) and quality of life (between-group difference –11 ± 5 points; p = 0.04). Blood pressure decreased in patients with lower sodium intake (between-group difference –9 ± 5 mmHg; p = 0.05) without significant differences in symptomatic hypotension or other safety events (p > 0.3 for all). Conclusions: Adherence assessed by 24-hour natriuresis and by the nutritionist was poor. The group allocated to sodium restriction did not show improvement in NT-proBNP. However, patients who achieved a sodium intake < 2500 mg/day appeared to have improvements in NT-proBNP and quality of life without any adverse safety signals. ClinicalTrials.gov Identifier: NCT03351283

    Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

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    Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

    Overview of the instrumentation for the Dark Energy Spectroscopic Instrument

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    The Dark Energy Spectroscopic Instrument (DESI) embarked on an ambitious 5 yr survey in 2021 May to explore the nature of dark energy with spectroscopic measurements of 40 million galaxies and quasars. DESI will determine precise redshifts and employ the baryon acoustic oscillation method to measure distances from the nearby universe to beyond redshift z > 3.5, and employ redshift space distortions to measure the growth of structure and probe potential modifications to general relativity. We describe the significant instrumentation we developed to conduct the DESI survey. This includes: a wide-field, 3.°2 diameter prime-focus corrector; a focal plane system with 5020 fiber positioners on the 0.812 m diameter, aspheric focal surface; 10 continuous, high-efficiency fiber cable bundles that connect the focal plane to the spectrographs; and 10 identical spectrographs. Each spectrograph employs a pair of dichroics to split the light into three channels that together record the light from 360–980 nm with a spectral resolution that ranges from 2000–5000. We describe the science requirements, their connection to the technical requirements, the management of the project, and interfaces between subsystems. DESI was installed at the 4 m Mayall Telescope at Kitt Peak National Observatory and has achieved all of its performance goals. Some performance highlights include an rms positioner accuracy of better than 0.″1 and a median signal-to-noise ratio of 7 of the [O ii] doublet at 8 × 10−17 erg s−1 cm−2 in 1000 s for galaxies at z = 1.4–1.6. We conclude with additional highlights from the on-sky validation and commissioning, key successes, and lessons learned
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