Results 21 to 30 of about 1,513,668 (313)

Estimation of genetic parameters and verification of early selection efficiency in baru (Dipteryx alata) [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2014
This study aimed at verifying the efficiency of early selection, and estimating the genetic parameters in Dipteryx alata. The 66 half-sib families were obtained from three seed provenances at the Brazilian Savannah of the state of Minas Gerais.
Alisson Moura Santos   +2 more
doaj  

Ganhos genéticos preditos por diferentes métodos de seleção em progênies de Eucalyptus urophylla Predicted genetic gains by various selection methods in Eucalyptus urophylla progenies

open access: yesPesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar parâmetros genéticos e comparar os ganhos preditos por meio de diferentes métodos de seleção em famílias de meios-irmãos de Eucalyptus urophylla.
Antônio Marcos Rosado   +4 more
doaj   +1 more source

Models of neutrino masses and mixings

open access: yesNew Journal of Physics, 2004
We review theoretical ideas, problems and implications of neutrino masses and mixing angles. We give a general discussion of schemes with three light neutrinos. Several specific examples are analyzed in some detail, particularly those that can be embedded into grand unified theories.
FERUGLIO, FERRUCCIO, G. ALTARELLI
openaire   +3 more sources

A review of R-packages for random-intercept probit regression in small clusters

open access: yesFrontiers in Applied Mathematics and Statistics, 2016
Generalized Linear Mixed Models (GLMMs) are widely used to model clustered categorical outcomes. To tackle the intractable integration over the random effects distributions, several approximation approaches have been developed for likelihood-based ...
Haeike Josephy, Tom Loeys, Yves Rosseel
doaj   +1 more source

Genotypic superiority of Psidium Guajava S1 families using mixed modeling for truncated and simultaneous selection

open access: yesScientia Agricola, 2020
: The purpose of this study was to conduct selection, genetic parameter estimation, and prediction of genetic values for 18 S1 families of guava trees using mixed model methodology and simultaneous selection of traits by means of the additive selection ...
Moisés Ambrósio   +7 more
doaj   +1 more source

Half-Normal Plots and Overdispersed Models in R: The hnp Package

open access: yesJournal of Statistical Software, 2017
Count and proportion data may present overdispersion, i.e., greater variability than expected by the Poisson and binomial models, respectively. Different extended generalized linear models that allow for overdispersion may be used to analyze this type of
Rafael A Moral   +2 more
doaj   +1 more source

Mixed Shock Models

open access: yesBernoulli, 2001
The author studies system lifetimes that are associated with a cumulative shock model as follows: The system fails when the cumulative damage exceeds some threshold, or when a single large shock occurs. \textit{H. Li} and the reviewer [Stochastic Processes Appl. 58, No. 2, 205-216 (1995; Zbl 0833.60088); Appl. Probab. 34, No.
openaire   +2 more sources

Do Non-Cognitive Skills Produce Heterogeneous Returns Across Different Wage Levels Amongst Youth Entering the Workforce? A Quantile Mixed Model Approach

open access: yesEconomies
This study estimates the labor market returns to non-cognitive skills among the youth under 30 years old during the early career stage. Using data from the Russian Longitudinal Monitoring Survey (RLMS-HSE) for 2016 and 2019, it examines the effects of ...
Garen Avanesian
doaj   +1 more source

Drivers of flea abundance in wild rodents across local and regional scales in the Chihuahuan Desert, northwestern Mexico

open access: yesEcosphere, 2022
The broad distribution of macroparasites and their thriving populations are matters of health and economic concern. Macroparasites cause damage both directly through their feeding habits, which impact host fitness, and indirectly through the transmission
Paulina A. Pontifes   +4 more
doaj   +1 more source

Venous Thromboembolism in Pediatric Bone Sarcoma Patients: A 10‐Year, Single‐Institution Experience Encompassing the COVID‐19 Pandemic

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Osteosarcoma (OS) and Ewing sarcoma (EWS) are the most common primary bone cancers in children, but acute thrombosis is poorly characterized in this population. Our study evaluated the rates of venous thromboembolism (VTE) and associated risk factors in pediatric patients with bone sarcomas treated over a 10‐year period encompassing
Sarah Kappa   +8 more
wiley   +1 more source

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