312 research outputs found

    Occurrence of Multidrug Resistant Bacteria in aquatic wildlife in Catalonia, Spain

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    TFMOne HealthMultidrug resistance on bacteria is one of the principal public health threats of the 21st century with severe social implications and high economical burden all over the world. Even if the resistance generation is per-se a natural evolutionary process, the regular and repeated release of AMR bacteria and AMR determinants into natural ecosystems imposes extra selective pressure that has leaded to an unprecedented emergence of MDR, XDR and PDR bacterial strains. Aquatic ecosystems have shown to be a major transmission media and all kinds of antimicrobials have been detected in different aquatic environment samples. On our study 96 aquatic-related wild animals (33 reptiles and 63 mammals) from the Wildlife Rehabilitation Center of Torreferrussa were sampled. Rectal or cloacal swabs samples were taken and cultured in antibiotic selective media for microbiological identification and antibiosensitivity testing. A total of 36 bacterial spp from invasive turtles and 22 from aquatic-related mammals were isolated. The recovered species (N=58) have clinical significance on emerging opportunistic nosocomial and foodborne infections: E. coli (N=13), Aeromonas spp. (N=10), Pseudomonas spp (N=9), Burkholderia cepacia (N=4), Citrobacter, Moraxella spp., Ralstonia picketti (N=3); Salmonella, Serratia, Klebsiella and Proteus spp. (N=2) and single Bordetella bronchiseptica, Mannheimia haemolitica, Morganella morganii, Providencia rettgeri, Rahnella aquatilis and Rhizobium radiobacter. 100% hold MDR profiles, 24% fit on the XDR category, moreover, Burkholderia cepacia (N=2) and Moraxella spp. (N=1) where PDR bacteria. All things considered, aquatic wildlife might not serve only as reservoirs and vectors for MDR, XDR and PDR, but also as highly effective surveillance targets to determine the extent of water-sources and neighbouring areas AMR pollution and the early detection of novel MDR profiles on bacteria of medical relevance

    Desarrollo multidisciplinario en investigaciĂłn y docencia del centro universitario UAEM Valle de MĂ©xico

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    DESARROLLO MULTIDISCIPLINARIO EN INVESTIGACIÓN Y DOCENCIA DEL CENTRO UNIVERSITARIO UAEM VALLE DE MÉXICOLa Universidad AutĂłnoma del Estado de MĂ©xico ha evolucionado a travĂ©s de sus 188 años de historia, dedicada a la educaciĂłn, la investigaciĂłn, la cultura y el deporte, como sus grandes ejes rectores, formadora de hombres y mujeres con un alto sentido humanista y Ă©tico, contribuyendo a lograr nuevas y mejores formas de existencia y convivencia social. Durante el proceso de desconcentraciĂłn de la UAEM, se crearon las Unidades AcadĂ©micas y Centros Universitarios para brindar el servicio de educaciĂłn a mĂĄs jĂłvenes en todo el Estado de MĂ©xico, este Centro Universitario fue uno de los primeros y a sus veinte años de existencia se estĂĄ consolidando como uno de los mejores. Es en los Ășltimos años que se ha venido impulsando la investigaciĂłn al contar con cuerpos acadĂ©micos, en formaciĂłn y en consolidaciĂłn, con infraestructura de primera tanto en equipo como en laboratorios especializados, con profesores de tiempo completo que participan en congresos, seminarios y presentan publicaciones en revistas indexadas. Por ello para celebrar esos veinte años de existencia de esta honorable instituciĂłn, se planeĂł la compilaciĂłn de esta obra que es parte del quehacer multidisciplinario en investigaciĂłn y docencia como parte del Plan de Desarrollo 2013-2017, de esta administraciĂłn. Esta obra reĂșne investigaciones tanto de profesores como de alumnos desde las diferentes ramas del saber en las que se inscriben sus siete licenciaturas, ActuarĂ­a, AdministraciĂłn, ContadurĂ­a, Derecho, EconomĂ­a, Relaciones EconĂłmicas Internacionales e InformĂĄtica Administrativa, tanto presencial como a distancia, asĂ­ como sus tres ingenierĂ­as, Industrial, en ComputaciĂłn y Sistemas y Comunicaciones, asĂ­ como gracias a la vinculaciĂłn y colaboraciĂłn acadĂ©mico – cientĂ­fica que se tiene con otras instituciones de educaciĂłn superior a nivel nacional, como el Instituto TecnolĂłgico de Orizaba, la Universidad AutĂłnoma de San Luis PotosĂ­, la Universidad Nacional AutĂłnoma de MĂ©xico, la Universidad AutĂłnoma Metropolitana, Universidad PolitĂ©cnica de Victoria, el Instituto PolitĂ©cnico Nacional entre otras. En el capĂ­tulo 1 se abordan seis temĂĄticas diferentes de vanguardia en el ĂĄrea de las IngenierĂ­as, en los capĂ­tulos 2 y 3 se incluyen temas de interĂ©s y gran relevancia en materia de ciencias sociales, polĂ­tica y economĂ­a. Se hace extensivo un reconocimiento para todos los que participaron tanto en la revisiĂłn de los trabajos, como en la compilaciĂłn del producto final de este Libro intitulado “Desarrollo Multidisciplinario en InvestigaciĂłn y Docencia del Centro Universitario UAEM Valle de MĂ©xico”

    Extinction risk of Mesoamerican crop wild relatives

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    Ensuring food security is one of the world's most critical issues as agricultural systems are already being impacted by global change. Crop wild relatives (CWR)—wild plants related to crops—possess genetic variability that can help adapt agriculture to a changing environment and sustainably increase crop yields to meet the food security challenge. Here we report the results of an extinction risk assessment of 224 wild relatives of some of the world's most important crops (i.e. chilli pepper, maize, common bean, avocado, cotton, potato, squash, vanilla and husk tomato) in Mesoamerica—an area of global significance as a centre of crop origin, domestication and of high CWR diversity. We show that 35% of the selected CWR taxa are threatened with extinction according to The International Union for Conservation of Nature (IUCN) Red List demonstrates that these valuable genetic resources are under high anthropogenic threat. The dominant threat processes are land use change for agriculture and farming, invasive and other problematic species (e.g. pests, genetically modified organisms) and use of biological resources, including overcollection and logging. The most significant drivers of extinction relate to smallholder agriculture—given its high incidence and ongoing shifts from traditional agriculture to modern practices (e.g. use of herbicides)—smallholder ranching and housing and urban development and introduced genetic material. There is an urgent need to increase knowledge and research around different aspects of CWR. Policies that support in situ and ex situ conservation of CWR and promote sustainable agriculture are pivotal to secure these resources for the benefit of current and future generations

    Canagliflozin and renal outcomes in type 2 diabetes and nephropathy

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    BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years

    Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions

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    We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

    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

    Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

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    Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

    Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

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    Long-range angular correlations on the near and away side in p&#8211;Pb collisions at

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    Global urban environmental change drives adaptation in white clover

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    Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural clines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale
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