Search results for "Correlation"

Application of the Wood model to lactation curves of Comisana sheep

1997

Abstract Ninety-two ewes of the Comisana breed were used in a study to verify the forecasting capacity of the mathematical model proposed by Wood for fitting sheep data, and to evaluate the effect of the environmental factors affecting the parameters of the lactation curve. The Wood model underestimated the total lactation milk production with an error margin of 12.2 ± 7.8 kg of milk corresponding to 10.9 ± 6.6%. There was a strong influence of order of lambing × lambing season interaction on the lactation parameters. The curves for the winter lambing ewes demonstrated a higher peak production than autumn lambing ewes (1728.4 vs. 1082.6 g, P ≤ 0.05 for the second lambing ewes and 1772.8 vs.…

Erratum to: DYTurbo: fast predictions for Drell–Yan processes

2020

The European physical journal / C 80(5), 440 (2020). doi:10.1140/epjc/s10052-020-7972-0

DYTurbo: fast predictions for Drell–Yan processes

2019

The European physical journal / C 80(5), 251 (2020). doi:10.1140/epjc/s10052-020-7757-5

Protective and Risk Factors for Adolescent Substance Use in Spain: Self-Esteem and Other Indicators of Personal Well-Being and Ill-Being

2020

Although self-esteem has traditionally been considered as an important correlate of psychosocial adjustment, some empirical studies have found a positive relationship between some domains of self-esteem and drug use among adolescents. The present study analyzes self-esteem and other adjustment personal indicators as protective or risk factors for substance use. Participants were 644 Spanish adolescents aged 12&ndash

NEW PROTON CONDUCTORS FOR ELECTROCHEMICAL APPLICATIONS: SYNTHESIS AND STRUCTURE – PROPERTIES CORRELATION

2011

European Sero-Epidemiology Network 2: standardisation of immunoassay results for pertussis requires homogeneity in the antigenic preparations.

2008

A standardisation process, already developed during the earlier European Sero-Epidemiology Network (ESEN) project, was employed with a more robust algorithm to harmonise results of pertussis serological assays performed in 12 European and non-European countries. Initially, results from each country's own assay were compared with those obtained at the reference laboratory by means of an in-house pertussis toxin (PT)-based ELISA: seven countries used in-house or commercial PT-ELISAs; the other countries used assays based on Bordetella pertussis whole cell extracts (WCE) (three countries) or on combined PT-FHA (filamentous haemagglutinin) antigenic preparations (two countries). The WCE assays,…

Unveiling the strong interaction among hadrons at the LHC

2020

One of the key challenges for nuclear physics today is to understand from first principles the effective interaction between hadrons with different quark content. First successes have been achieved using techniques that solve the dynamics of quarks and gluons on discrete space-time lattices1,2. Experimentally, the dynamics of the strong interaction have been studied by scattering hadrons off each other. Such scattering experiments are difficult or impossible for unstable hadrons3–6 and so high-quality measurements exist only for hadrons containing up and down quarks7. Here we demonstrate that measuring correlations in the momentum space between hadron pairs8–12 produced in ultrarelativistic…

Consumer Neuroscience-Based Metrics Predict Recall, Liking and Viewing Rates in Online Advertising

2017

[EN] The purpose of the present study is to investigate whether the effectiveness of a new ad on digital channels (YouTube) can be predicted by using neural networks and neuroscience-based metrics (brain response, heart rate variability and eye tracking). Neurophysiological records from 35 participants were exposed to 8 relevant TV Super Bowl commercials. Correlations between neurophysiological-based metrics, ad recall, ad liking, the ACE metrix score and the number of views on YouTube during a year were investigated. Our findings suggest a significant correlation between neuroscience metrics and self-reported of ad effectiveness and the direct number of views on the YouTube channel. In add…

Parental Psychological Control, Quality of Family Context and Life Satisfaction Among Italian Adolescents

2012

The aim of the study was to explore the unique and common contributions of parental psychological control and family functioning to global life satisfaction among Italian adolescents while considering the type of parental psychological control: dependencyoriented and achievement-oriented. Two hundred fifty-five adolescents (104 boys and 151 girls) from 15 to 17 years of age (mean age = 15.98, SD = .76) completed self-report measures on perceived parental psychological control, dependency- and achievement-oriented, family functioning and global life satisfaction. Correlation analyses indicated that parental psychological control oriented to both dependency and achievement was negatively rela…

Coefficient shifts in geographical ecology: an empirical evaluation of spatial and non-spatial regression

2009

12 páginas, 4 figuras, 3 tablas.