47 research outputs found

    Análisis socioeconómico del Mototaxismo en Ocaña, Norte de Santander, Colombia.

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    Moto-taxism has become in recent years a source of employment for many Colombians, this activity is considered illegal by the Colombian legislation, this article reveals this phenomenon, making known the socio-economic dynamics that revolve around this activity. From this reference the article aims to make a diagnosis at a socio-economic level in the city of Ocaña; based on a population census of the people who practice this activity. The methodological component is based on non-experimental quantitative research of a descriptive type, based on direct counts and surveys carried out by the researchers, thus yielding certain results such as; that the majority of motorcycle taxi drivers are men, from socioeconomic strata 1 and 2, who are excluded from the educational system, but who generate a dynamism in the city's economy. It is concluded that moto-taxism is an alternative of subsistence for people from less favoured social strata and generates a very important economic dynamic in the city, it is a problem due to its cause of informality, but at the same time it is a source of employment for people with scarce economic resources.El moto-taxismo se ha convertido en los últimos años en una fuente de empleo para muchos colombianos; esta actividad se considera ilegal por la legislación por cuanto no reúne los requisitos en torno al servicio público de acuerdo al decreto 2961 de 2006 del Ministerio de Transporte. Por tanto, este artículo se orienta a analizar las causas y consecuencias asociadas al desarrollo de esta actividad en Ocaña Norte de Santander, Colombia; situación que se asume en el marco de la dinámica socioeconómica de una zona de alta vulnerabilidad y muchas carencias. El componente metodológico se aborda desde un enfoque empirista, paradigma cuantitativo, diseño no experimental de tipo descriptivo, para la recolección de la información a través de técnicas como la observación, con un registro de observación empírica. Entre los principales resultados se evidencia que esta actividad es la principal fuente se subsistencia, por cuanto un 51% de los moto-taxistas son casados y un 90%, 3 personas en promedio dependen económicamente del moto-taxista. El total de personas que dependen de esta labor equivalen al 9% de la población total del municipio lo cual es un valor significativo. Destaca como conclusión que muchas de las personas que se dedican a esta labor, lo hacen por la falta de oportunidades laborales en la región, y encuentran en este oficio, el sustento económico para su familia. En el estudio realizado, se evidenció que gran parte de la población Ocañera dedicada al moto-taxismo, conforman familias numerosas, siendo estas la mayoría entre 1 y 5 miembros, los cuales dependen en su mayoría de esta labor

    Production of He-4 and (4) in Pb-Pb collisions at root(NN)-N-S=2.76 TeV at the LHC

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    Results on the production of He-4 and (4) nuclei in Pb-Pb collisions at root(NN)-N-S = 2.76 TeV in the rapidity range vertical bar y vertical bar <1, using the ALICE detector, are presented in this paper. The rapidity densities corresponding to 0-10% central events are found to be dN/dy4(He) = (0.8 +/- 0.4 (stat) +/- 0.3 (syst)) x 10(-6) and dN/dy4 = (1.1 +/- 0.4 (stat) +/- 0.2 (syst)) x 10(-6), respectively. This is in agreement with the statistical thermal model expectation assuming the same chemical freeze-out temperature (T-chem = 156 MeV) as for light hadrons. The measured ratio of (4)/He-4 is 1.4 +/- 0.8 (stat) +/- 0.5 (syst). (C) 2018 Published by Elsevier B.V.Peer reviewe

    Dietary patterns and their relationship with the perceptions of healthy eating in European adolescents : the HELENA study

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    Objective: The aim of this study was to identify dietary patterns (DPs) in European adolescents and to examine the association between perceptions of healthy eating and the obtained DPs. Method: A multinational cross-sectional study was carried out in adolescents aged 12.5 to 17.5?years and 2,027 (44.9% males) were considered for analysis. A self-reported questionnaire with information on food choices and preferences, including perceptions of healthy eating, and two 24-hour dietary recalls were used. Principal component analysis was used to obtain sex-specific DPs, and linear analyses of covariance were used to compare DPs according to perceptions of healthy eating. Results: Three and four DPs for boys and girls were obtained. In boys and girls, there were significant associations between some perceptions about healthy food and the Breakfast-DP (p?<?0.05). In boys, Breakfast-DP and Healthy Beverage-DP were associated with the perception of the own diet as healthy (p?<?0.05). Healthy Beverage-DP was associated with those disliking fruits and vegetables (p?<?0.05). Girls considering the own diet as healthy were associated with Mediterranean-DP, Breakfast-DP, and Unhealthy Beverage and Meat-DP (p?<?0.05). The perception of snacking as a necessary part of a healthy diet was associated with Breakfast-DP in both genders (p?<?0.05). Conclusions: In European adolescents, perceptions of healthy eating were mainly associated with a DP characterized by foods consumed at breakfast. Future studies should further explore these findings in order to implement health promotion programs to improve healthy eating habits in adolescents

    Environmental and societal factors associated with COVID-19-related death in people with rheumatic disease: an observational study

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    Published by Elsevier Ltd.Background: Differences in the distribution of individual-level clinical risk factors across regions do not fully explain the observed global disparities in COVID-19 outcomes. We aimed to investigate the associations between environmental and societal factors and country-level variations in mortality attributed to COVID-19 among people with rheumatic disease globally. Methods: In this observational study, we derived individual-level data on adults (aged 18-99 years) with rheumatic disease and a confirmed status of their highest COVID-19 severity level from the COVID-19 Global Rheumatology Alliance (GRA) registry, collected between March 12, 2020, and Aug 27, 2021. Environmental and societal factors were obtained from publicly available sources. The primary endpoint was mortality attributed to COVID-19. We used a multivariable logistic regression to evaluate independent associations between environmental and societal factors and death, after controlling for individual-level risk factors. We used a series of nested mixed-effects models to establish whether environmental and societal factors sufficiently explained country-level variations in death. Findings: 14 044 patients from 23 countries were included in the analyses. 10 178 (72·5%) individuals were female and 3866 (27·5%) were male, with a mean age of 54·4 years (SD 15·6). Air pollution (odds ratio 1·10 per 10 μg/m3 [95% CI 1·01-1·17]; p=0·0105), proportion of the population aged 65 years or older (1·19 per 1% increase [1·10-1·30]; p<0·0001), and population mobility (1·03 per 1% increase in number of visits to grocery and pharmacy stores [1·02-1·05]; p<0·0001 and 1·02 per 1% increase in number of visits to workplaces [1·00-1·03]; p=0·032) were independently associated with higher odds of mortality. Number of hospital beds (0·94 per 1-unit increase per 1000 people [0·88-1·00]; p=0·046), human development index (0·65 per 0·1-unit increase [0·44-0·96]; p=0·032), government response stringency (0·83 per 10-unit increase in containment index [0·74-0·93]; p=0·0018), as well as follow-up time (0·78 per month [0·69-0·88]; p<0·0001) were independently associated with lower odds of mortality. These factors sufficiently explained country-level variations in death attributable to COVID-19 (intraclass correlation coefficient 1·2% [0·1-9·5]; p=0·14). Interpretation: Our findings highlight the importance of environmental and societal factors as potential explanations of the observed regional disparities in COVID-19 outcomes among people with rheumatic disease and lay foundation for a new research agenda to address these disparities.MAG is supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (grant numbers K01 AR070585 and K24 AR074534 [JY]). KDW is supported by the Department of Veterans Affairs and the Rheumatology Research Foundation Scientist Development award. JAS is supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (grant numbers K23 AR069688, R03 AR075886, L30 AR066953, P30 AR070253, and P30 AR072577), the Rheumatology Research Foundation (K Supplement Award and R Bridge Award), the Brigham Research Institute, and the R. Bruce and Joan M. Mickey Research Scholar Fund. NJP is supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (T32-AR-007258). AD-G is supported by grants from the Centers for Disease Control and Prevention and the Rheumatology Research Foundation. RH was supported by the Justus-Liebig University Giessen Clinician Scientist Program in Biomedical Research to work on this registry. JY is supported by grants from the National Institutes of Health (K24 AR074534 and P30 AR070155).info:eu-repo/semantics/publishedVersio

    The African Diaspora: The Black Man in the Development of Southern America

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    Effects of pre-operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study

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    Prompt and non-prompt J/ψ\hbox {J}/\psi production and nuclear modification at mid-rapidity in p–Pb collisions at sNN=5.02\mathbf{\sqrt{{ s}_{\text {NN}}}= 5.02}  TeV

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    A measurement of beauty hadron production at mid-rapidity in proton-lead collisions at a nucleon–nucleon centre-of-mass energy sNN=5.02\sqrt{s_\text {NN}}=5.02 TeV is presented. The semi-inclusive decay channel of beauty hadrons into J/ψ\hbox {J}/\psi is considered, where the J/ψ\hbox {J}/\psi mesons are reconstructed in the dielectron decay channel at mid-rapidity down to transverse momenta of 1.3 GeV/c. The bbˉ\hbox {b}\bar{\hbox {b}} production cross section at mid-rapidity, dσbbˉ/dy\hbox {d}\sigma _{\hbox {b}\bar{\hbox {b}}}/\hbox {d}y , and the total cross section extrapolated over full phase space, σbbˉ\sigma _{\text {b}\bar{\text {b}}} , are obtained. This measurement is combined with results on inclusive J/ψ\hbox {J}/\psi production to determine the prompt J/ψ\hbox {J}/\psi cross sections. The results in p–Pb collisions are then scaled to expectations from pp collisions at the same centre-of-mass energy to derive the nuclear modification factor RpPbR_{\text {pPb}} , and compared to models to study possible nuclear modifications of the production induced by cold nuclear matter effects. RpPbR_{\text {pPb}} is found to be smaller than unity at low pTp_{\mathrm{T}} for both J/ψ\hbox {J}/\psi coming from beauty hadron decays and prompt J/ψ\hbox {J}/\psi

    Constraints on jet quenching in p-Pb collisions at sNN\mathbf{\sqrt{s_{NN}}} = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions

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    The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at sNN=5.02 TeV. Jets are reconstructed from charged-particle tracks using the anti- kT algorithm with resolution parameter R=0.2 and 0.4. A data-driven statistical approach is used to correct the uncorrelated background jet yield. Recoil jet distributions are reported for jet transverse momentum 15<pT,jetch<50GeV/c and are compared in various intervals of p–Pb event activity, based on charged-particle multiplicity and zero-degree neutral energy in the forward (Pb-going) direction. The semi-inclusive observable is self-normalized and such comparisons do not require the interpretation of p–Pb event activity in terms of collision geometry, in contrast to inclusive jet observables. These measurements provide new constraints on the magnitude of jet quenching in small systems at the LHC. In p–Pb collisions with high event activity, the average medium-induced out-of-cone energy transport for jets with R=0.4 and 15<pT,jetch<50GeV/c is measured to be less than 0.4 GeV/c at 90% confidence, which is over an order of magnitude smaller than a similar measurement for central Pb–Pb collisions at sNN=2.76TeV . Comparison is made to theoretical calculations of jet quenching in small systems, and to inclusive jet measurements in p–Pb collisions selected by event activity at the LHC and in d–Au collisions at RHIC

    First measurement of Ξc0\Xi_{\rm c}^0 production in pp collisions at s\mathbf{\sqrt{s}} = 7 TeV

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    The production of the charm-strange baryon Ξc0 is measured for the first time at the LHC via its semileptonic decay into e Ξ−+νe in pp collisions at s=7 TeV with the ALICE detector. The transverse momentum ( pT ) differential cross section multiplied by the branching ratio is presented in the interval 1<pT<8 GeV/c at mid-rapidity, |y|<0.5 . The transverse momentum dependence of the Ξc0 baryon production relative to the D0 meson production is compared to predictions of event generators with various tunes of the hadronisation mechanism, which are found to underestimate the measured cross-section ratio
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