Datos normativos de salto vertical y potencia de piernas para escolares colombianos de 9 a 17,9 años: el estudio fuprecol

PURPOSE: The Vertical Jump Test became of the most convenient tests used to evaluate anaerobic capacity and the effectiveness of anaerobic training programs for a variety of power sports. However, its use and interpretation as an evaluative measurement into physical activity tests are limited because there are few published reference values derived for children and adolescents. Therefore, the aims of the present study were to generate normative vertical jump height and predicted peak power (Ppeak) data for 10- to 17.9-year-olds and to investigate between-sex and age group differences in these measures. METHODS: The sample comprised 7614 healthy Colombian schoolchildren [boys n=3258 and girls n=4356, mean (standard deviation) age 12.8 (2.3) years old]. Each participant performed two countermovement jumps, and jump height was calculated using a Takei 5414 Jump-DF Digital Vertical®, Japan. The highest jump was used for analysis and in the calculation of predicted Ppeak. Centile smoothed curves, percentile and tables for the 3rd, 10th, 25th, 50th, 75th, 90th and 97th percentile were calculated using Cole’s LMS method. RESULTS: The one-way ANOVA tests showed that maximum jump height (cm) and predicted Ppeak (W) was higher in boys than in girls (p<.01). Post hoc analyses within sexes showed yearly increases in jump height and Ppeak in all ages. In boys, the maximum jump height and predicted Ppeak 50th percentile ranged from 24.0 to 38.0 cm and 845.5 to 3061.6 W, respectively. In girls, the 50th percentile ranged from jump height was 22.3 to 27.0 cm and predicted Ppeak was 710.1 to 2036.4 W. For girls, jump height increased yearly from 9 to 12.9 years before reaching a plateau aged 13 to 16.9 years old. CONCLUSIONS: Our results provide, for the first time, sex- and age-specific vertical jump height and predicted Ppeak reference standards for Colombian schoolchildren aged 9-17.9 years

The Intrinsic Fundamental Group of a Linear Category

We provide an intrinsic definition of the fundamental group of a linear category over a ring as the automorphism group of the fibre functor on Galois coverings. If the universal covering exists, we prove that this group is isomorphic to the Galois group of the universal covering. The grading deduced from a Galois covering enables us to describe the canonical monomorphism from its automorphism group to the first Hochschild-Mitchell cohomology vector space.Comment: Final version, to appear in Algebras and Representation Theor

Cycle-finite module categories

We describe the structure of module categories of finite dimensional algebras over an algebraically closed field for which the cycles of nonzero nonisomorphisms between indecomposable finite dimensional modules are finite (do not belong to the infinite Jacobson radical of the module category). Moreover, geometric and homological properties of these module categories are exhibited

Esplenectomía Laparoscopica, nuestra experiencia

El abordaje laparoscópico ha demostrado ser un procedimiento seguro y eficaz en el tratamiento de las enfermedades hematológicas que requieren la realización de esplenectomía. Se realizó un estudio descriptivo y retrospectivo de todos los pacientes con patologías benignas del bazo, los cuales fueron sometidos al proceder de esplenectomía laparoscópica (EL) entre enero de 1996 y diciembre de 2007 en el Centro Nacional de Cirugía de Mínimo Acceso, con el objetivo de evaluar los resultados de la EL en el tratamiento de las enfermedades hematológicas. De los 24 pacientes sometidos a la técnica de EL, se convirtió un paciente (4,1%). La mayoría de los procedimientos fueron realizados por púrpura trombocitopénica  idiopática (PTI) siendo un total de 15 pacientes (66,6%). El promedio de edad fue de 35 años, la estadía hospitalaria de 3 días y el tiempo quirúrgico de 163 minutos. Se realizó la extracción de bazos accesorios en 5 pacientes. Las complicaciones postoperatorias se presentaron en 2 pacientes y uno de ellos requirió reintervención. Se concluye que la EL es un método seguro y eficaz en el tratamiento de las enfermedades hematológicas benignas.   Palabras claves: Esplenectomía. Esplenectomía  laparoscópica. Bazo/Cirugía. Procedimientos quirúrgicos laparoscópicos

Impact of biological agents on postsurgical complications in inflammatory bowel disease: A multicentre study of Geteccu

Background: The impact of biologics on the risk of postoperative complications (PC) in inflammatory bowel disease (IBD) is still an ongoing debate. This lack of evidence is more relevant for ustekinumab and vedolizumab. Aims: To evaluate the impact of biologics on the risk of PC. Methods: A retrospective study was performed in 37 centres. Patients treated with biologics within 12 weeks before surgery were considered “exposed”. The impact of the exposure on the risk of 30-day PC and the risk of infections was assessed by logistic regression and propensity score-matched analysis. Results: A total of 1535 surgeries were performed on 1370 patients. Of them, 711 surgeries were conducted in the exposed cohort (584 anti-TNF, 58 vedolizumab and 69 ustekinumab). In the multivariate analysis, male gender (OR: 1.5; 95% CI: 1.2–2.0), urgent surgery (OR: 1.6; 95% CI: 1.2–2.2), laparotomy approach (OR: 1.5; 95% CI: 1.1–1.9) and severe anaemia (OR: 1.8; 95% CI: 1.3–2.6) had higher risk of PC, while academic hospitals had significantly lower risk. Exposure to biologics (either anti-TNF, vedolizumab or ustekinumab) did not increase the risk of PC (OR: 1.2; 95% CI: 0.97–1.58), although it could be a risk factor for postoperative infections (OR 1.5; 95% CI: 1.03–2.27). Conclusions: Preoperative administration of biologics does not seem to be a risk factor for overall PC, although it may be so for postoperative infections

The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra

This paper documents the 16th data release (DR16) from the Sloan Digital Sky Surveys (SDSS), the fourth and penultimate from the fourth phase (SDSS-IV). This is the first release of data from the Southern Hemisphere survey of the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2); new data from APOGEE-2 North are also included. DR16 is also notable as the final data release for the main cosmological program of the Extended Baryon Oscillation Spectroscopic Survey (eBOSS), and all raw and reduced spectra from that project are released here. DR16 also includes all the data from the Time Domain Spectroscopic Survey and new data from the SPectroscopic IDentification of ERosita Survey programs, both of which were co-observed on eBOSS plates. DR16 has no new data from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey (or the MaNGA Stellar Library "MaStar"). We also preview future SDSS-V operations (due to start in 2020), and summarize plans for the final SDSS-IV data release (DR17)

The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library

Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years of operation (2014 July–2017 July). This is the third data release for SDSS-IV, and the 15th from SDSS (Data Release Fifteen; DR15). New data come from MaNGA—we release 4824 data cubes, as well as the first stellar spectra in the MaNGA Stellar Library (MaStar), the first set of survey-supported analysis products (e.g., stellar and gas kinematics, emission-line and other maps) from the MaNGA Data Analysis Pipeline, and a new data visualization and access tool we call "Marvin." The next data release, DR16, will include new data from both APOGEE-2 and eBOSS; those surveys release no new data here, but we document updates and corrections to their data processing pipelines. The release is cumulative; it also includes the most recent reductions and calibrations of all data taken by SDSS since first light. In this paper, we describe the location and format of the data and tools and cite technical references describing how it was obtained and processed. The SDSS website (www.sdss.org) has also been updated, providing links to data downloads, tutorials, and examples of data use. Although SDSS-IV will continue to collect astronomical data until 2020, and will be followed by SDSS-V (2020–2025), we end this paper by describing plans to ensure the sustainability of the SDSS data archive for many years beyond the collection of data