Flora vascular y vivienda de interés social en Villavicencio: conflictos con la conservación de la biodiversidad

Colombia presents around 24,530 species of vascular plants. However, this floristic richness is declining or showing some degree of threat, because their habitat has been reduced by the development of anthropic activities as urbanization, mining, agrarian and other. This same trend is observed in Villavicencio. For this reason, the present research has as objective to describe the floristic diversity remaining in the water rounds of Caño Zuria and La Madrid wetland located in the neighborhood of the same name. To carry out the research, opportunistic samplings were made where plant material in reproductive state was collected and species were identified. As results, it was found that the flora associated with the La Madrid wetland has 19 species of vascular plants grouped into 13 families, with Poaceae being the best represented. Of the registered species there are two that are in the category of least concern concern (LC), which are Andropogon bicornis and Jamaican Solanum. In the flora associated with the water round of the Zuria canal, 21 vascular plant species were found grouped into 11 families, of which the dominant one was Melastomaceae with six species, followed by Araceae with three species. Of the registered species, Psychotria poeppigiana is in the category of minor concern threat (LC). The analyzes carried out show that unsustainable urban development threatens the biodiversity of the flora and the supply of ecosystem services associated with the water rounds of the Zuria canal and La Madrid wetland in the municipality of Villavicencio.Colombia presenta alrededor de 24.530 plantas vasculares. Sin embargo, esta riqueza florística está disminuyendo o presentando algún grado de amenaza, debido a que su hábitat se ha reducido por el desarrollo de actividades realizadas por el hombre como es la urbanización, minería y otras. Esta misma tendencia se observa en Villavicencio. Por ello, la presente investigación tiene como objetivo analizar la diversidad florística remanente en las rondas hídricas del Caño Zuria y humedal La Madrid ubicadas en el barrio homónimo. Para llevar a cabo la investigación, se realizaron muestreos oportunistas donde se colecto material vegetal en estado reproductivo y se identificaron a especie. Como resultados se encontró que la flora asociada al humedal La Madrid posee 19 especies de plantas vasculares agrupadas en 13 familias, siendo Poaceae la mejor representada. De las especies registradas hay dos que están en la categoría de amenaza preocupación menor (LC), las cuales son Andropogon bicornis y Solanum jamaicense. En la flora asociada a la ronda hídrica del caño Zuria se encontraron 21 especies de plantas vasculares agrupadas en 11 familias, de estas la dominante fue Melastomaceae con seis especies, seguida por Araceae con tres especies. De las especies registradas, Psychotria poeppigiana se encuentra en la categoría de amenaza preocupación menor (LC). Los análisis realizados muestran que el desarrollo urbano no sostenible amenaza la biodiversidad de la flora y la oferta de servicios ecosistémicos asociados a las rondas hídricas del caño Zuria y humedal La Madrid en el municipio de Villavicencio

Ayuno corto vs prolongado previo a la realización de traqueostomías en pacientes de terapia intensiva: un estudio retrospectivo: Short and prolonged fasting prior to the performance of tracheostomies in intensive therapy: a retrospective study

Introduction: International guidelines on aid prior to invasive procedures usually generate longer aid than in intensive care (IT) patients. This fact represents a high risk of malnutrition and, consequently, a worse prognosis. The objective of the present investigation was to analyze the degree of association between the fasting time prior to tracheostomy of patients under mechanical ventilatory assistance (MVA) and the appearance of pneumonia. Methods: Retrospective cohort study that included patients admitted to our IT from 10/01/2018 to 08/31/2022 and with a tracheostomy performed. Two cohorts were defined characterized by fasting ≤3 hours vs. >3 hours. Fisher's exact test and Mann-Whitney test were used for bivariate analysis. A p value <0.05 was shown to be significant. Results: 141 patients were hospitalized with a tracheostomy, 9 were excluded, leaving 132 patients. The cohort with fasting ≤3 hours was made up of 15 patients and the one with fasting >3 hours was made up of 117, the latter presented an average fast of 2.5 hours (RI 2-3), days of AVM prior to the procedure of 13 days (RI 12-18), while the other cohort presented an average fast of 6 hours (RI 5-8), days of AVM prior to the procedure of 12 days (RI 10-14.5). When analyzing the association between the type of fasting and the appearance of pneumonia, an OR of 0.958 (95% CI: 0.32-2.87) was obtained, p value of 0.743. Conclusions: No significant differences were found regarding fasting time and the appearance of pneumonia as referred to in the international literature.Introducción: Las directrices internacionales sobre ayunos previo a procedimientos invasivos suelen generar ayunos prolongados que en los pacientes de terapia intensiva (TI). Este hecho representa un elevado riesgo de desnutrición y por consecuencia, un peor pronóstico. El objetivo de la presente investigación fue analizar el grado de asociación entre el tiempo de ayuno previo a la traqueostomía de los pacientes bajo asistencia ventilatoria mecánica (AVM) y la aparición de neumonía. Métodos: Estudio de cohortes retrospectivo que incluyó pacientes internados en nuestra TI desde el 01/10/2018 hasta el 31/08/2022 y con traqueostomía realizada. Se definieron dos cohortes caracterizadas por un ayuno ≤3hs vs >3hs. Se utilizó la prueba exacta de Fisher, U de Mann-Whitney para el análisis bivariado. Se consideró significativo un valor p<0.05. Resultados: 141 pacientes estuvieron internados con traqueostomía durante dicho periodo de tiempo, se excluyeron 9, quedando 132 pacientes. La cohorte con ayuno ≤3hs quedó conformada por 15 pacientes y la de ayuno >3hs por 117, es última presentó un ayuno promedio 2,5hs (RI 2-3), días de AVM previo al procedimiento de 13 días (RI 12-18), mientras que la otra cohorte presentó un ayuno promedio 6hs (RI 5-8), días de AVM previo al procedimiento de 12 días (RI 10-14.5). Al analizar la asociación entre el tipo de ayuno y la aparición de neumonía se obtuvo un OR 0.958 (IC 95%: 0.32-2.87), valor p de 0,743. Conclusiones: No se encontraron diferencias significativas respecto al tiempo de ayuno y la aparición de neumonía como se refiere en bibliografía internacional

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

Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis

BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London

Deciphering colorectal cancer genetics through multi-omic analysis of 100,204 cases and 154,587 controls of European and east Asian ancestries

In the version of this article initially published, the author affiliations incorrectly listed “Candiolo Cancer Institute FPO-IRCCS, Candiolo (TO), Italy” as “Candiolo Cancer Institute, Candiolo, Italy.” The change has been made to the HTML and PDF versions of the article

Sloan Digital Sky Survey IV: mapping the Milky Way, nearby galaxies, and the distant universe

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median ). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July

Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

Sloan Digital Sky Survey IV : mapping the Milky Way, nearby galaxies, and the distant universe

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median z ~ 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between z ~ 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July

Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median $z\sim 0.03$). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between $z\sim 0.6$ and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July

Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratio in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially-resolved spectroscopy for thousands of nearby galaxies (median redshift of z = 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between redshifts z = 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGN and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5-meter Sloan Foundation Telescope at Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5-meter du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in July 2016