Results 11 to 20 of about 538,996 (295)

Factorial Analysis of Colour Vision [PDF]

open access: yesNature, 1946
HOUSTOUN1 has pointed out that a three-colour theory, such as that of Young and Helmholtz, inevitably leads to mathematical contradictions. It is well known in addition that a theory in which there are only three primary sensitivities, such as red, green and blue, becomes unsatisfactory when the many different forms of defective colour vision are ...
openaire   +2 more sources

Critério para implantação de tecnologias de suprimentos de água potável em municípios cearenses afetados pelo alto teor de sal

open access: yesRevista de Economia e Sociologia Rural, 2004
O presente artigo tem por objetivo apresentar um critério para implantação de tecnologias de suprimento de água potável em municípios cearenses afetados pelo alto teor de sal nos mananciais que abastecem as suas populações .
Valéria Pereira Monteiro   +1 more
doaj   +1 more source

Multivariate statistical analysis applied to the evaluation of groundwater quality in the central-southern portion of the state of Bahia - Brazil

open access: yesRevista Ambiente & Água, 2020
The objective of this study was to identify and evaluate the variables responsible for contributing to possible natural and/or human contamination in groundwater of the semiarid region of the state of Bahia, seeking to subsidize water quality monitoring ...
Maria da Conceição Rabelo Gomes   +2 more
doaj   +1 more source

Child Well-Being Scales (CWBS): Psychometric Properties of the Portuguese Version

open access: yesPsicologia: Teoria e Pesquisa, 2022
There is a lack of validated instruments to evaluate child protection programs in Portugal. The present study analyzed the psychometric characteristics of the Child Well-Being Scales (CWBS), a multidimensional measure of potential situations of abuse and
Cristina Nunes   +3 more
doaj   +2 more sources

Determinants of villagers’ satisfaction with post-disaster reconstruction: Evidence from surveys ten years after the Wenchuan earthquake

open access: yesFrontiers in Environmental Science, 2022
Residents’ satisfaction with post-disaster reconstruction in earthquake-stricken areas directly affects their quality of life, which cannot be ignored in post-disaster reconstruction. More than 10 years after the Wenchuan earthquake, we took ten randomly
Yibin Ao   +6 more
doaj   +1 more source

Structural model of in-group dynamic of 6-10 years old boys’ motor fitness

open access: yesPedagogics, Psychology, Medical-Biological Problems of Physical Training and Sports, 2015
Purpose: to determine structural model of in-group dynamic of 6-10 years old boys’ motor fitness. Material: in the research 6 years old boys (n=48), 7 years old (n=45), 8 years old (n=60), 9 years’ age (n=47) and10 years’ age (n=40) participated.
O.V. Ivashchenko, T.S. Yermakova
doaj   +1 more source

Measuring Inclusive Education in Portuguese Schools: Adaptation and Validation of a Questionnaire

open access: yesFrontiers in Education, 2022
The debate about inclusive education has gained considerable attention in policy, research, and practice in the last decades. Therefore, there is also a growing interest in assessing how inclusive education occurs in schools.
Marisa Carvalho   +3 more
doaj   +1 more source

Badminton players’ moral intentions : a factorial survey study into personal and contextual determinants [PDF]

open access: yes, 2019
Improving and maintaining high ethical standards among athletes is a major challenge in sports, which requires sufficient knowledge on athletes’ moral intentions.
Constandt, Bram   +3 more
core   +1 more source

Izergin-Korepin analysis on the projected wavefunctions of the generalized free-fermion model [PDF]

open access: yes, 2017
We apply the Izergin-Korepin analysis to the study of the projected wavefunctions of the generalized free-fermion model. We introduce a generalization of the $L$-operator of the six-vertex model by Bump-Brubaker-Friedberg and Bump-McNamara-Nakasuji.
Motegi, Kohei
core   +3 more sources

Uso de análise multivariada na classificação das fontes hídricas subterrâneas da bacia hidrográfica do Salitre Multivariate analysis for interpretation of underground water quality from salitre watershed

open access: yesEngenharia Agrícola, 2006
Este estudo teve por objetivo identificar as variáveis responsáveis pela maior variabilidade da qualidade das águas subterrâneas da bacia hidrográfica do Rio Salitre - BA, e detectar as fontes que apresentam características semelhantes, visando a ...
Luiza T. de L. Brito   +4 more
doaj   +1 more source

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