4,849 research outputs found
Dependencia emocional en estudiantes de Medicina
Objective: To determine the emotional dependence of students of medicine in a public university. Methods: A cross-sectional study was carried-out applying the 42-item scale of emotional dependence of Ancima, Caballero, Cirilo y Aguirre (2013) with dichotomous responses (yes/no); 332 five-year medical students were selected; a non- probabilistic sample of 303 students was finally recruited. Results: 183 (60.39%) were females: mean age was 24 years; only 2.98% were stables and 90.39% had a tendency for dependence. Conclusions: Five-year medical students had a marked tendency for dependence, especially female students.Objetivos: Identificar la dependencia emocional en los estudiantes de medicina de universidad pĂşblica. Material y mĂŠtodos: Estudio cuantitativo, no experimental, exploratorio, descriptivo, transversal. Se aplicĂł la escala de dependencia emocional de Ancima, Caballero, Cirilo y Aguirre (2013) integrada por 42 Ătems. Las respuestas se establecen dicotĂłmicamente Si o no. La poblaciĂłn se conformĂł por 332 estudiantes de medicina de quinto aĂąo de una universidad pĂşblica. La escala fue aplicada a 303 estudiantes una muestra no probabilĂstica, por conveniencia. Resultados: De 303 estudiantes, 183 (60,39%) eran del gĂŠnero femenino y 120 (39,60%) masculino, con promedio de edad de 24 aĂąos, con una desviaciĂłn estĂĄndar de 1,46. Solo el 2,98% fueron âestablesâ y el 90,39% con âtendencia a la dependenciaâ. Conclusiones: Los estudiantes de medicina presentan una marcada tendencia a la dependencia emocional. Siendo las mujeres las mĂĄs dependientes
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Effects of maternal calcium propionate supplementation on offspring productivity and meat metabolomic profile in sheep
This study determined the effect of dietary calcium propionate (CaPr) as a source of energy supplementation during the First Half of Gestation (FMG), the Second Half of Gestation (SMG), and during All Gestation (AG), on offspring post-weaning growth performance, meat quality, and meat metabolomic profile. Thirty-one pregnant ewes were assigned to one of four treatments: a) supplementation of 30 gd-1 of CaPr during the first half of gestation (day 1 to day 75, n = 8) (FMG); b) supplementation of 30 gd-1 of CaPr during the second half of gestation (day 76 to day 150, n = 8) (SMG); c) supplementation of 30 gd-1 of CaPr during all gestation (AG, n = 8); d) no CaPr supplementation (control; CS, n = 7). The ewes were ad libitum fed a basal diet based on oat hay and corn silage. Ewes were distributed in a completely randomized unbalanced design to four treatments. The FMG group had lower (P ⤠0.05) birth weight and weaning weight than the CS group. However, the average daily gain was similar across all treatments. Empty body weight and FMG had lower values (P ⤠0.05) than the other groups. Both FMG and AG had lower hot carcass weight (P ⤠0.05) compared to CS, while CaPr treatments resulted in reduced hot carcass yield (P ⤠0.05). Meat color and texture were similar among treatments. A principal component analysis between gestation stages showed a trend for separating CS and FMG from SMG and AG, and that was explained by 93.7% of the data variability (PC1 = 87.9% and PC2 = 5.8%). Regarding meat metabolomic profile, 23 compounds were positively correlated between all treatments. Only 2 were negatively correlated (eicosane and naphthalene 1,2,3); but tetradecanoic acid, hexadecane, undecane 5-methyl, (-)-alpha, hexadecenoic acid, octadecanoic acid, and octadecane had a highly significant correlation (P ⤠0.05). Overall, dam supplementation with CaPr during different periods of gestation provoked changes in meat metabolites related to the biosynthesis of fatty acids in lambs without negative changes in lamb's growth performance and carcass quality
Encapsulation of antioxidant phenolic compounds extracted from spent coffee grounds by freeze-drying and spray-drying using different coating materials
Supplementary data associated with this article can be found, in the online version, at http://dx.doi.org/10.1016/j.foodchem.2017.05.142.Freeze-drying and spray-drying techniques were evaluated for encapsulation of phenolic compounds (PC) extracted from spent coffee grounds. Additionally, the use of maltodextrin, gum arabic and a mixture of these components (ratio 1:1) as wall material to retain the PC and preserve their antioxidant activity was also assessed. The contents of PC and flavonoids (FLA), as well as the antioxidant activity of the encapsulated samples were determined in order to verify the efficiency of each studied condition. Additional analyses for characterization of the samples were also performed. Both the technique and the coating material greatly influenced the encapsulation of antioxidant PC. The best results were achieved when PC were encapsulated by freeze-drying using maltodextrin as wall material. Under these conditions, the amount of PC and FLA retained in the encapsulated sample corresponded to 62% and 73%, respectively, and 73-86% of the antioxidant activity present in the original extract was preserved.This work was supported by the Science and Technology Foundation of Portugal (FCT - grant SFRH/BD/80948/2011); the Strategic Project (PEst-OE/EQB/LA0023/2013); and the Project ââBioInd -
Biotechnology and Bioengineering for improved Industrial and Agro-Food processesâ Co-funded by the Programa Operacional Regional do Norte (ON.2 â O Novo Norte), QREN, FEDER (Ref.
NORTE-07-0124-FEDER-000028).info:eu-repo/semantics/publishedVersio
Acute pulmonary embolism as a complication in a young male patient with a left popliteal venous aneurysm
Abstract Venous aneurysms are rare and have a prevalence of 0.1 to 0.2% in the reported series. Typically, patients do not present any symptoms, but are prone to develop deep venous thrombosis (DVT) and the most feared complication, pulmonary embolism (PE). We present the case of a previously healthy 36-year-old man who presented at the emergency department with tachycardia, dyspnea, and pleuritic pain. A thoracic computed tomography angiography (CTA) confirmed the diagnosis of acute pulmonary embolism. He was treated with systemic thrombolysis and anticoagulation. In the further workup of the cause of the embolism, computed tomography revealed a fusiform dilation of the left popliteal vein measuring 3 by 3 centimeters (cm) with an incomplete filling defect because of thrombus presence. The patient underwent open surgical repair. At one month follow-up, he was asymptomatic, and an ultrasound revealed complete patency of the popliteal vein without dilatation or thrombus
Measurement of the cross-section and charge asymmetry of bosons produced in proton-proton collisions at TeV with the ATLAS detector
This paper presents measurements of the and cross-sections and the associated charge asymmetry as a
function of the absolute pseudorapidity of the decay muon. The data were
collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with
the ATLAS experiment at the LHC and correspond to a total integrated luminosity
of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements
varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the
1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured
with an uncertainty between 0.002 and 0.003. The results are compared with
predictions based on next-to-next-to-leading-order calculations with various
parton distribution functions and have the sensitivity to discriminate between
them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables,
submitted to EPJC. All figures including auxiliary figures are available at
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13
Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in âs=13âTeV pp collisions with the ATLAS detector
A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of âs=13ââTeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139ââfbâ1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015â2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV
EpidemiologĂa molecular y anĂĄlisis filogenĂŠtico de la infecciĂłn por el virus del papiloma humano en mujeres con lesiones cervicales y cĂĄncer en la regiĂłn litoral del Ecuador
The aim of the present study was to gather information regarding the molecular epidemiology of Human papillomavirus (HPV) and related risk factors in a group of women with low- and high-grade cervical lesions and cancer from the coastal region of Ecuador. In addition, we studied the evolution of HPV variants from the most prevalent types and provided a temporal framework for their emergence, which may help to trace the source of dissemination within the region. We analyzed 166 samples, including 57 CIN1, 95 CIN2/3 and 14 cancer cases. HPV detection and typing was done by PCR-sequencing (MY09/MY11). HPV variants and estimation of the time to most recent common ancestor (tMRCA) was assessed through phylogeny and coalescence analysis. HPV DNA was found in 54.4% of CIN1, 74.7% of CIN2/3 and 78.6% of cancer samples. HPV16 (38.9%) and HPV58 (19.5%) were the most prevalent types. Risk factors for the development of cervical lesions/cancer were the following: three or more pregnancies (OR = 4.3), HPV infection (OR = 3.7 for high-risk types; OR = 3.5 for HPV16), among others. With regard to HPV evolution, HPV16 isolates belonged to lineages A (69%) and D (31%) whereas HPV58 isolates belonged only to lineage A. The period of emergence of HPV16 was in association with human populations (tMRCA = 91. 052 years for HPV16A and 27. 000 years for HPV16D), whereas HPV58A preceded Homo sapiens evolution (322. 257 years). This study provides novel data on HPV epidemiology and evolution in Ecuador, which will be fundamental in the vaccine era.Fil: Bedoya Pilozo, Cesar H.. Escuela Superior PolitĂŠcnica del Litoral; Ecuador. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Medina MagĂźes, Lex G.. Escuela Superior PolitĂŠcnica del Litoral; EcuadorFil: Espinosa GarcĂa, Maylen. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: SĂĄnchez, Martha. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Parrales Valdiviezo, Johanna V.. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Molina, Denisse. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Ibarra, MarĂa A.. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Quimis Ponce, MarĂa. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: EspaĂąa, Karool. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: PĂĄrraga Macias, Karla E.. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Cajas Flores, Nancy V.. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Solon, Orlando A.. Instituto Nacional de Investigaciones en Salud PĂşblica; Ecuador. Universidad Agraria del Ecuador; EcuadorFil: Robalino Penaherrera, Jorge A.. Instituto Nacional de Investigaciones en Salud PĂşblica; EcuadorFil: Chedraui, Peter. Hospital Gineco-ObstĂŠtrico Enrique C. Sotomayor; EcuadorFil: Escobar, Saul. Universidad CatĂłlica de Guayaquil; EcuadorFil: Loja Chango, Rita D.. Universidad CatĂłlica de Guayaquil; EcuadorFil: Ramirez MorĂĄn, Cecibel. Universidad CatĂłlica de Guayaquil; EcuadorFil: Espinoza Caicedo, Jasson. Universidad CatĂłlica de Guayaquil; EcuadorFil: SĂĄnchez Giler, Sunny. Universidad Especialidades EspĂritu Santo. Facultad de Ciencias MĂŠdicas; EcuadorFil: Limia, Celia M.. Instituto de Medicina Tropical Pedro Kouri; CubaFil: AlemĂĄn, Yoan. Instituto de Medicina Tropical Pedro Kouri; CubaFil: Soto, Yudira. Instituto de Medicina Tropical Pedro Kouri; CubaFil: Kouri, Vivian. Instituto de Medicina Tropical Pedro Kouri; CubaFil: Culasso, AndrĂŠs Carlos Alberto. Consejo Nacional de Investigaciones CientĂficas y TĂŠcnicas. Centro CientĂfico TecnolĂłgico Conicet - Nordeste; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y BioquĂmica. Departamento de MicrobiologĂa, InmunologĂa y BiotecnologĂa. CĂĄtedra de VirologĂa; ArgentinaFil: Badano, Ines. Consejo Nacional de Investigaciones CientĂficas y TĂŠcnicas. Centro CientĂfico TecnolĂłgico Conicet - Nordeste; Argentina. SecretarĂa de EducaciĂłn Superior, Ciencia, TecnologĂa e InnovaciĂłn; Ecuador. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, QuĂmicas y Naturales. Laboratorio de BiologĂa Molecular Aplicada; Argentin
Search for direct stau production in events with two hadronic tau-leptons in root s=13 TeV pp collisions with the ATLAS detector
A search for the direct production of the supersymmetric partners ofĎ-leptons (staus) in final stateswith two hadronically decayingĎ-leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of139fbâ1, recorded with the ATLAS detector at the LargeHadron Collider at a center-of-mass energy of 13 TeV. No significant deviation from the expected StandardModel background is observed. Limits are derived in scenarios of direct production of stau pairs with eachstau decaying into the stable lightest neutralino and oneĎ-lepton in simplified models where the two staumass eigenstates are degenerate. Stau masses from 120 GeV to 390 GeV are excluded at 95% confidencelevel for a massless lightest neutralino
Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV
A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay
channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7
TeV is presented. The data were collected at the LHC, with the CMS detector,
and correspond to an integrated luminosity of 4.6 inverse femtobarns. No
significant excess is observed above the background expectation, and upper
limits are set on the Higgs boson production cross section. The presence of the
standard model Higgs boson with a mass in the 270-440 GeV range is excluded at
95% confidence level.Comment: Submitted to JHE
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