Results 81 to 90 of about 92,391 (275)

Selection efficiency in Brachiaria hybrids using a posteriori blocking

Crop Breeding and Applied Biotechnology, 2007
This paper compares the efficiency of Brachiaria hybrid clone selection by either traditional analysis or a posteriori blocking, to adequately consider the effect of lower competition in the border rows of the experimental plots (border effect).
Rosangela Maria Simeão Resende, Marcos Deon Vilela de Resende, Cacilda Borges do Valle, Liana Jank, Roberto Augusto de Almeida Torres Júnior, Letícia Jungmann Cançado   +5 more
doaj  

Comparações múltiplas bayesianas em modelos normais homocedásticos e heterocedásticos Bayesian multiple comparisons in homocedastic and heterocedastic normal models

Ciência e Agrotecnologia, 2010
Procedimentos de comparações múltiplas são utilizados para comparar médias de níveis de um fator, porém, os testes mais populares apresentam problemas de ambiguidade dos resultados e de controle do erro tipo I, além de terem seus desempenhos ...
Paulo César de Resende Andrade, Daniel Furtado Ferreira   +1 more
doaj   +1 more source

Holocene vegetation change and fire–plant diversity shifts in Mediterranean France

Journal of Quaternary Science, EarlyView.
ABSTRACT Changes in fire activity are recognized as a major threat to biodiversity and vegetation communities across the Mediterranean Basin. However, long‐term fire–vegetation interactions remain poorly investigated. Here, we combine a high‐resolution charcoal record with pollen data from the “Étang des Aulnes” lake (southern France) to reconstruct ...
Cécile Latapy, Marion Lestienne, Andy Hennebelle, Johanne Burmeister, Aymeric LeGall, Gwendal Mouden, Damien Rius, Lisa Bajolle, Jacques‐Louis de Beaulieu, Walter Finsinger, Emmanuel Gandouin, François Demory, Cécile H. Albert, Bérangère Leys   +13 more
wiley   +1 more source

Are DSM‐5 and ICD‐11 posttraumatic stress disorder measures assessing the same construct? Evidence from a Rasch‐based analysis

Journal of Traumatic Stress, EarlyView.
Abstract This study examined whether DSM‐5 and ICD‐11 self‐report operationalizations of posttraumatic stress disorder (PTSD) are psychometrically equivalent. Using Rasch modeling, we compared the psychometric properties and convergent validity of the PTSD Checklist for DSM‐5 (PCL‐5) and the International Trauma Questionnaire (ITQ) in a sample of 483 ...
Emre Han Alpay
wiley   +1 more source

How to Choose Your Statistical Test Before You Run It: A Decision‐Based Guide to Statistical Analysis in Aquatic Sciences for Young Scientists

Limnology and Oceanography Bulletin, EarlyView.
Abstract Statistical analysis is a cornerstone of scientific research, yet young researchers in aquatic sciences often struggle when analyses begin without a clearly defined research question or a solid understanding of the data structure. This disconnect between data collection and analytical decision‐making recurrently drives unreliable findings ...
Juline Rodrigues da Conceição, Stéfano Zorzal‐Almeida   +1 more
wiley   +1 more source

An a posteriori measure of network modularity [PDF]

F1000Research, 2013
Measuring modularity is important to understand the structure of networks, and has an important number of real-world implications. However, several measures exists to assess the modularity, and give both different modularity values and different modules composition. In this article, I propose an a posteriori
openaire   +3 more sources

Opening the Black Box of Nonprofit Reputation and Volunteer Attraction With Supervised Machine Learning

Nonprofit Management and Leadership, EarlyView.
ABSTRACT With the aim to explore the potential of machine learning for nonprofit research, this article contrasts traditional linear regression with four contemporary supervised machine learning approaches. Concretely, we predict (1) reputation ratings and (2) the total number of volunteers for 4021 non‐profit organizations in the U.S.
Moritz Schmid, Hannes Lampe, Jurgen Willems   +2 more
wiley   +1 more source

Recovery from electrode position uncertainties in geophysical electrical resistance tomography – Application to moisture transport imaging

Near Surface Geophysics, EarlyView.
Abstract In studies of subsurface hydrology, monitoring and imaging techniques are used to estimate the moisture content, or to track moisture or injected tracer movement. One applied imaging technique is electrical resistance tomography (ERT), in which measurements collected using electrodes placed on the ground surface or in boreholes are used to ...
Mikko Räsänen, Ruanui Nicholson, Jari Kaipio, Aku Ursin   +3 more
wiley   +1 more source

FPU-Supported Running Error Analysis

Acta Polytechnica, 2010
A-posteriori forward rounding error analyses tend to give sharper error estimates than a-priori ones, as they use actual data quantities. One of such a-posteriori analysis – running error analysis – uses expressions consisting of two parts; one generates
T. Zahradnický, R. Lórencz
doaj  

Coverage‐based rarefaction fails to quantify relative species richness

Oikos, EarlyView.
Coverage‐based rarefaction (CBR) is a high‐profile tool for assessing biodiversity that provides relative species richness estimates by leveraging the Good‐Turing index u to interpolate. In contrast to alternatives such as the Shannon and Simpson indices, CBR's main appeal is providing values in units of species. CBR is tested against a series of other
John Alroy
wiley   +1 more source