329 research outputs found
Determinants of acquisition and clearance of human papillomavirus infection in previously unexposed young women
Background Global variation in human papillomavirus (HPV) prevalence and persistence may be explained by differences in risk factors, such as sexual activity, oral contraceptive use, and behavioral factors. We evaluated determinants of acquisition and clearance of HPV infection among young women previously unexposed to HPV. Methods Five hundred thirty-four women aged 15 to 25 years who were cytology and HPV DNA negative, and seronegative for anti-HPV-16/18 antibodies, were recruited (July 2000âSeptember 2001) from study centers in Brazil, the United States, and Canada (NCT00689741/NCT00120848). They were followed up for 76 months. Cervical samples were HPV genotyped via polymerase chain reaction. We used multivariable (forward stepwise, P = 0.15) Cox proportional hazards regression to estimate rate ratios (RR) and 95% confidence intervals (CI), separately according to length of follow-up time. Results On short-term follow-up (0â27 months), 257 (48%; 8535.80 person-months; incidence rate = 30.11; 95% CI, 26.64â34.02) incident HPV infections were detected. Marital status, lifetime number of sex partners, history of any sexually transmitted disease, and occasional use of oral contraceptives were strongly associated with acquisition of any HPV. Having 2 or more lifetime sex partners (RR, 2.03; 95% CI, 1.37â3.02) and a history of any sexually transmitted disease (RR, 1.98; 95% CI, 1.19â3.29) were the most important determinants of high-risk HPV (hrHPV) incidence. During the entire follow-up (0â76 months), an increased hrHPV clearance was found among women in North America (RR, 1.38; 95% CI, 1.08â1.78) and black women (RR, 1.64; 95% CI, 1.04â2.60). Greater number of lifetime partners was associated with reduced clearance rates for any HPV (RR, 0.65; 95% CI, 0.43â0.98). Conclusions We identified variation in risk of HPV acquisition and clearance among women unexposed to HPV at baseline
Study of the decay
The decay is studied
in proton-proton collisions at a center-of-mass energy of TeV
using data corresponding to an integrated luminosity of 5
collected by the LHCb experiment. In the system, the
state observed at the BaBar and Belle experiments is
resolved into two narrower states, and ,
whose masses and widths are measured to be where the first uncertainties are statistical and the second
systematic. The results are consistent with a previous LHCb measurement using a
prompt sample. Evidence of a new
state is found with a local significance of , whose mass and width
are measured to be and , respectively. In addition, evidence of a new decay mode
is found with a significance of
. The relative branching fraction of with respect to the
decay is measured to be , where the first
uncertainty is statistical, the second systematic and the third originates from
the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb
public pages
Measurement of the ratios of branching fractions and
The ratios of branching fractions
and are measured, assuming isospin symmetry, using a
sample of proton-proton collision data corresponding to 3.0 fb of
integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The
tau lepton is identified in the decay mode
. The measured values are
and
, where the first uncertainty is
statistical and the second is systematic. The correlation between these
measurements is . Results are consistent with the current average
of these quantities and are at a combined 1.9 standard deviations from the
predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb
public pages
Determinants of acquisition and clearance of human papillomavirus infection in previously unexposed young women
Background Global variation in human papillomavirus (HPV) prevalence and persistence may be explained by differences in risk factors, such as sexual activity, oral contraceptive use, and behavioral factors. We evaluated determinants of acquisition and clearance of HPV infection among young women previously unexposed to HPV. Methods Five hundred thirty-four women aged 15 to 25 years who were cytology and HPV DNA negative, and seronegative for anti-HPV-16/18 antibodies, were recruited (July 2000âSeptember 2001) from study centers in Brazil, the United States, and Canada (NCT00689741/NCT00120848). They were followed up for 76 months. Cervical samples were HPV genotyped via polymerase chain reaction. We used multivariable (forward stepwise, P = 0.15) Cox proportional hazards regression to estimate rate ratios (RR) and 95% confidence intervals (CI), separately according to length of follow-up time. Results On short-term follow-up (0â27 months), 257 (48%; 8535.80 person-months; incidence rate = 30.11; 95% CI, 26.64â34.02) incident HPV infections were detected. Marital status, lifetime number of sex partners, history of any sexually transmitted disease, and occasional use of oral contraceptives were strongly associated with acquisition of any HPV. Having 2 or more lifetime sex partners (RR, 2.03; 95% CI, 1.37â3.02) and a history of any sexually transmitted disease (RR, 1.98; 95% CI, 1.19â3.29) were the most important determinants of high-risk HPV (hrHPV) incidence. During the entire follow-up (0â76 months), an increased hrHPV clearance was found among women in North America (RR, 1.38; 95% CI, 1.08â1.78) and black women (RR, 1.64; 95% CI, 1.04â2.60). Greater number of lifetime partners was associated with reduced clearance rates for any HPV (RR, 0.65; 95% CI, 0.43â0.98). Conclusions We identified variation in risk of HPV acquisition and clearance among women unexposed to HPV at baseline
Ibero-American Network as a Collaborative Strategy to Provide Tools for the Development of Phytopharmaceuticals and Nutraceuticals
The increasing trend for using natural ingredients for nutraceuticals and phytopharmaceuticals development triggers the study of non-traditional sources for phytopharmaceuticals development, such as underexploited plants and agroindustrial wastes. The extraction, characterization and stabilization of bioactive compounds are intricate due to their low concentrations and their complex interactions in the vegetable matrix. New simple, ecological and efficient technologies are being developed to overcome the disadvantages of traditional extraction procedures, and many strategies should be developed to preserve their bioactivity. Oxidative reactions and protein glycation are two of the main deteriorative reactions affecting biological molecules and functionality loss in vitro and in vivo. Thus, efforts have been extended in search of edible plants with antioxidant or antiglycant properties. This chapter is an outcome of the CYTED Iberoamerican network 415RT0495, which task was to promote the valorization of subvaluated sources of bioactive compounds for food and medical uses.EstaciĂłn Experimental Agropecuaria PergaminoFil: Buera, MarĂa del Pilar. Universidad de Buenos Aires. Instituto de TecnologĂa de Alimentos y Procesos QuĂmicos; ArgentinaFil: Buera, MarĂa del Pilar. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Abirached, Cecilia. Universidad de la RepĂșblica. Facultad de QuĂmica; UruguayFil: Alamilla-BeltrĂĄn, Liliana. Instituto PolitĂ©cnico Nacional. Escuela Nacional de Ciencias BiolĂłgicas; MĂ©xicoFil: Busch, VerĂłnica MarĂa. Universidad de Buenos Aires. Instituto de TecnologĂa de Alimentos y Procesos QuĂmicos; ArgentinaFil: Busch, VerĂłnica MarĂa. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Santos, Cristina Isabel dos. Universidad de Buenos Aires. Instituto de TecnologĂa de Alimentos y Procesos QuĂmicos; ArgentinaFil: Santos, Cristina Isabel dos. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Farroni, Abel. Instituto Nacional de TecnologĂa Agropecuaria (INTA). EstaciĂłn Experimental Agropecuaria Pergamino; ArgentinaFil: Favre, Leonardo Cristian. Universidad de Buenos Aires. Instituto de TecnologĂa de Alimentos y Procesos QuĂmicos; ArgentinaFil: Favre, Leonardo Cristian. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: FernĂĄndez-Varela, Aldo. Universidad Popular del CĂ©sar; ColombiaFil: FernĂĄndez-Varela, Aldo. FundaciĂłn para la Ciencia y la Agroindustria Tropical TropilogĂa, Valledupar; ColombiaFil: Freire-Costa, Fabiano. Universidade Federal de Juiz de Fora. Faculdade de FarmĂĄcia. Departamento de CiĂȘncias FarmacĂȘuticas; BrasilFil: Gabilondo, Julieta. Instituto Nacional de TecnologĂa Agropecuaria (INTA). EstaciĂłn Experimental Agropecuaria San Pedro; ArgentinaFil: Galante, Micaela. Universidad Nacional del Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Departamento de QuĂmica-FĂsica; ArgentinaFil: Galante, Micaela. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Hidalgo, MarĂa Eugenia. Universidad Nacional del Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Departamento de QuĂmica-FĂsica; ArgentinaFil: Hidalgo, MarĂa Eugenia. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Ingrassia, Romina. Universidad Nacional del Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Departamento de QuĂmica-FĂsica; ArgentinaFil: Ingrassia, Romina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Ingrassia, Romina. Universidad Nacional del Rosario. Facultad de Ciencias Veterinarias; ArgentinaFil: LĂłpez Hiriart, Milagros. Universidad Nacional del Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Departamento de QuĂmica-FĂsica; ArgentinaFil: LĂłpez Hiriart, Milagros. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: LĂłpez Hiriart, Milagros. Universidad Nacional del Rosario. Facultad de Ciencias Veterinarias; ArgentinaFil: Medrano, Alejandra. Universidad de la RepĂșblica (Udelar). Facultad de QuĂmica; UruguayFil: Micheloni, Oscar B. Universidad Nacional del Noroeste de la Provincia de Buenos Aires. Departamento de Ciencias BĂĄsicas. Escuela de Ciencias Agrarias y Naturales; ArgentinaFil: Navarro AlarcĂłn, Miguel. Universidad de Granada. Departamento de NutriciĂłn y BromatologĂa; SpainFil: Panizzolo, Luis. Universidad de la RepĂșblica. Facultad de QuĂmica; UruguayFil: Pereyra-Castro, Silvia del Carmen. Instituto PolitĂ©cnico Nacional. Escuela Nacional de Ciencias BiolĂłgicas; MĂ©xicoFil: PĂ©rez-PĂ©rez, Viridiana. Instituto PolitĂ©cnico Nacional. Escuela Nacional de Ciencias BiolĂłgicas; MĂ©xicoFil: Plazola-Jacinto, Carla Patricia. Instituto PolitĂ©cnico Nacional. Escuela Nacional de Ciencias BiolĂłgicas; MĂ©xicoFil: Risso, Patricia. Universidad Nacional del Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Departamento de QuĂmica-FĂsica; ArgentinaFil: Risso, Patricia. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Risso, Patricia. Universidad Nacional de Rosario. Facultad de Ciencias Veterinarias; ArgentinaFil: Roberet-Canales, Paz. Universidad Nacional de Chile. Departamento de Ciencia de los Alimentos y TecnologĂa QuĂmica, Facultad de Ciencias QuĂmicas y FarmacĂ©uticas; ChileFil: RodrĂguez, AnalĂa. Universidad de la RepĂșblica. Facultad de QuĂmica; UruguayFil: RodrĂguez, Silvio David. Universidad de Buenos Aires. Instituto de TecnologĂa de Alimentos y Procesos QuĂmicos; ArgentinaFil: RodrĂguez, Silvio David. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Rojas-Balcazar, Erick. Universidad AutĂłnoma Gabriel RenĂ© Moreno; BoliviaFil: RufiĂĄn Henares, JosĂ© Ăngel. Universidad Nacional del Noroeste de la Provincia de Buenos Aires. Departamento de Ciencias BĂĄsicas. Escuela de Ciencias Agrarias y Naturales; ArgentinaFil: Vasile, Franco Emanuel. Universidad Nacional del Chaco Austral; Argentin
Comentarios a una sentencia anunciada : el proceso Lula
El centenar de textos que conforman este libro -escritos por un movimiento de prestigiosos/as juristas y abogados- desgranan el procedimiento al que fue sometido Lula. En la opiniĂłn de las y los autores de los artĂculos las normas no fueron observadas, y su inobservancia llevĂł a que se dictaminase una decisiĂłn injusta.
Frases del estilo "Voy a tomar una decisiĂłn revolucionaria, dejando de lado la ley, porque por la ley no se puede condenarlo de ninguna maneraÂ, dichas en los juicios por las mĂĄs altas autoridades judiciales militares y civiles, hoy son conocidas gracias a quienes se abocaron al trabajo de escuchar los audios de aquellas sesiones, nutriendo las reflexiones que argumentan sobre el imperativo de la hora: restablecer el estado de derecho y absolver al presidente Lula Da Silva
Comentários a uma sentença anunciada : o processo Lula
ÂComentĂĄrios a uma sentença: o Caso Lula é talvez o mais importante documento jurĂdico publicado no Brasil em dĂ©cadas. A presente coletĂąnea de artigos nasceu de um movimento espontĂąneo e bastante significativo de juristas brasileiros e estrangeiros que examinaram cuidadosamente a sentença proferida no Ăąmbito do processo que tramitou na 13ÂȘ Vara Federal de Curitiba, no caso que ficou conhecido na mĂdia como o do ÂtrĂplex do GuarujĂĄÂ.
<br>De la presentaciĂłn de Geraldo Prad
NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics
Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data
Measurement of prompt and production in collisions at TeV
International audienceThe production of prompt and mesons is studied in proton-lead collisions at a centre-of-mass energy of TeV. The data sample corresponding to an integrated luminosity of is collected by the LHCb experiment at the LHC. The differential production cross-sections are measured using and candidates with transverse momentum in the range of and rapidities in the ranges of and in the nucleon-nucleon centre-of-mass system. For both particles, the nuclear modification factor and the forward-backward production ratio are determined. These results are compared with theoretical models that include initial-state nuclear effects. In addition, measurements of the cross-section ratios between , and mesons are presented, providing a baseline for studying the charm hadronization in lead-lead collisions at LHC energies
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