Diagnostico de la asignaturas de mayor mortalidad académica en los programas de Licenciatura de la Universidad Tecnológica de Pereira en los periodos comprendidos entre 2008 I y 2010 II aplicando Técnicas de análisis estadístico de datos

Esta investigación pretende identificar las asignaturas de los programas académicos de Licenciatura de la Universidad Tecnológica de Pereira (UTP) que presentan mayor mortalidad académica, como también sus posibles factores de influencia. Para llevar a cabo esta tarea, se aplicó análisis estadístico a la información académica de la base de datos del Centro de Registro y Control Académico de la Universidad, determinando las asignaturas de mayor mortalidad y aplicando a éstas procesos estadísticos. Luego de realizar un proceso de análisis descriptivo de los datos, analizar comportamiento de las medias, eliminar datos atípicos, y comprobando supuestos de normalidad se llegó a la conclusión que los datos no presentan un comportamiento bajo la distribución normal, lo cual imposibilita la realización de un análisis de varianza (ANOVA). Por tal motivo se optó por realizar un proceso de aplicación estadística no paramétrica a través de la prueba de Kruskal –Wallis, mediante la cual se concluye que el factor docente influye en el rendimiento académico de los estudiantes para las siguientes asignaturas: (Guitarra Funcional I, Concepciones y Políticas de Infancia, Habilidades Matemáticas, Lengua Moderna I, Lenguaje y Socialización y Griego I

The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourteenth from SDSS overall (making this, Data Release Fourteen or DR14). This release makes public data taken by SDSS-IV in its first two years of operation (July 2014-2016). Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey (eBOSS); the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data driven machine learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS website (www.sdss.org) has been updated for this release, and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020, and will be followed by SDSS-V.Comment: SDSS-IV collaboration alphabetical author data release paper. DR14 happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov 2017 (this is the "post-print" and "post-proofs" version; minor corrections only from v1, and most of errors found in proofs corrected

The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014–2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from the SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS web site (www.sdss.org) has been updated for this release and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V

Colombia diversidad biótica IV : El Chocó biogeográfico / Costa Pacífica

ilustraciones, gráficas, mapas, tablasEn las tierras bajas del Pacífico colombiano -en la actualidad reconocidas como parte del Chocó biogeográfico se establecen 20 ecosistemas cuyos ensambles bióticos y abióticos están asociados con las variaciones en la fisiografia y en el contenido de agua y de elementos minerales en el sustrato. En los estuarios se establecen los ecosistemas de manglares con Rhizophora mangle y Rhizophora harrisonii y los natales con Mora megistosperma; en la llanura aluvial dominan los ecosistemas con Prioria copaifera, Raphia taedigera, Campnosperma panamensis, Montrichardia arborescens y Symphonia globulifera. En las colinas bajas y medias se establecen los ecosistemas con Cavanillesia platanifolia y con Anacardium excelsum y en las colinas medias y altas los ecosistemas dominados por especies de Brosimum (Brosimion utilae). El Norte de la región es el sector húmedo; el centro tiene zonas de alta pluviosidad en las cercanías de Quibdó con montos mayores de 11000 mm anuales y el Sur igualmente incluye lugares con expresión máxima de la pluviosidad como Barbacoas y Bocas del Napí. Hay registros de 4525 especies de espermatófitos y de 424 de helechos. En hepáticas se encontraron 170 especies, en musgos 132 y en líquenes 189. En mamíferos se encontraron registros de 192 especies, en aves de 753, en reptiles 188, en anfibios 140 y en peces 190. En los grupos de invertebrados estudiados hay 9 especies de escorpiones, 22 de cangrejos y 183 de escarabajos. La excepcional riqueza biológica del Chocó biogeográfico está amenazada por la deforestación y la alarmante transformación del hábitat, resultantes de las presiones de diversa índole que tratan de apropiarse del legado histórico ecológico y cultural, que es patrimonio de todos los colombianos. (Texto tomado de la fuente).Incluye anexosISBN de la versión impresa: 9789587014396Primera edició

International Nosocomial Infection Control Consortiu (INICC) report, data summary of 43 countries for 2007-2012. Device-associated module

We report the results of an International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2007-December 2012 in 503 intensive care units (ICUs) in Latin America, Asia, Africa, and Europe. During the 6-year study using the Centers for Disease Control and Prevention's (CDC) U.S. National Healthcare Safety Network (NHSN) definitions for device-associated health care–associated infection (DA-HAI), we collected prospective data from 605,310 patients hospitalized in the INICC's ICUs for an aggregate of 3,338,396 days. Although device utilization in the INICC's ICUs was similar to that reported from ICUs in the U.S. in the CDC's NHSN, rates of device-associated nosocomial infection were higher in the ICUs of the INICC hospitals: the pooled rate of central line–associated bloodstream infection in the INICC's ICUs, 4.9 per 1,000 central line days, is nearly 5-fold higher than the 0.9 per 1,000 central line days reported from comparable U.S. ICUs. The overall rate of ventilator-associated pneumonia was also higher (16.8 vs 1.1 per 1,000 ventilator days) as was the rate of catheter-associated urinary tract infection (5.5 vs 1.3 per 1,000 catheter days). Frequencies of resistance of Pseudomonas isolates to amikacin (42.8% vs 10%) and imipenem (42.4% vs 26.1%) and Klebsiella pneumoniae isolates to ceftazidime (71.2% vs 28.8%) and imipenem (19.6% vs 12.8%) were also higher in the INICC's ICUs compared with the ICUs of the CDC's NHSN