Genotyping by sequencing approach for autotetraploidy urochloa.

IFTBC 2019

Performance agronômica de cultivares de cafeeiro enxertadas em Apoatã IAC 2258.

Este trabalho teve como objetivo avaliar a influência da enxertia e do porta-enxerto Apoatã IAC 2258 na produtividade e nas características reprodutivas (peneira 17 acima e porcentagem de grãos chochos) de sete cultivares de cafeeiro da espécie Coffea arabica cultivados em campo. O experimento foi instalado em janeiro de 2004, em área isenta de nematoides, espaçamento de 3,0 m x 0,6 m, no Setor de Cafeicultura da Universidade Federal de Lavras - UFLA, sendo as avaliações compreendidas no período de janeiro de 2006 a outubro de 2011. Utilizou-se delineamento experimental em blocos casualizados (DBC) em esquema fatorial (7 x 3), com 4 repetições, sendo: a) sete cultivares de Coffea arabica: Obatã IAC 1669-20, Acauã, Oeiras MG 6851, Catucaí Amarelo 2SL, Topázio MG 1190, IBC Palma II e Paraíso MG H 419-1; b) três tipos de mudas: enxertada em "Apoatã IAC 2258" (Coffea canephora), autoenxertada e pé-franco. Avaliou-se a produção das seis primeiras safras (2006/2007 a 2011/2012). A porcentagem de frutos chochos e porcentagem de grãos peneira 17 acima foram avaliadas nas quatro últimas safras. Conclui-se que o emprego da enxertia não é eficaz para aumento de produtividade da planta de cafeeiro cultivada em área isenta de nematoides. Entre as cultivares estudadas, a cultivar Palma II é a mais indicada como copa em muda enxertada no cultivo em área infestada por fitonematoides.Título em inglês: Agronomic performance of variety of coffee grafted on IAC Apoatã 2258

The Prevalence of Adenoid Hypertrophy among Children with Zika Related Microcephaly.

Upper respiratory obstruction is a common sequela in children with Zika-related microcephaly (ZRM). As a cross-sectional analysis nested in a cohort study, this study aims to investigate the prevalence of adenoid hypertrophy (AH) in children with ZRM and symptoms of respiratory obstruction. The data were collected in the first three years of life from children with ZRM who were followed in two reference centers for otorhinolaryngological care of patients with congenital Zika syndrome. Out of 92 children with confirmed ZRM, 57 were evaluated by nasopharyngoscopy after presenting with upper respiratory obstruction symptoms. In this study, 31 of the 57 (54%) children with ZRM who were evaluated had obstructive AH. Thirteen children with obstructive AH were submitted to surgery, which resulted in the complete resolution of symptoms for 11, partial resolution in 1, and no improvement in 1. No evidence of direct involvement by Zika virus (ZIKV) infection in the adenoid tissues was demonstrated by histology or immunohistochemistry. Our results suggest that there is a high prevalence and early presentation of AH in children with ZRM, with consequent upper airway obstruction causing upper airway obstructive disorder, secretory otitis media, and dysphagia

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

Search for anomalous t t-bar production in the highly-boosted all-hadronic final state

A search is presented for a massive particle, generically referred to as a Z', decaying into a t t-bar pair. The search focuses on Z' resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay products that are partially or fully merged into single jets. The analysis uses new methods to analyze jet substructure, providing suppression of the non-top multijet backgrounds. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 5 inverse femtobarns. Upper limits in the range of 1 pb are set on the product of the production cross section and branching fraction for a topcolor Z' modeled for several widths, as well as for a Randall--Sundrum Kaluza--Klein gluon. In addition, the results constrain any enhancement in t t-bar production beyond expectations of the standard model for t t-bar invariant masses larger than 1 TeV.Comment: Submitted to the Journal of High Energy Physics; this version includes a minor typo correction that will be submitted as an erratu