Search results for "Variables"

An informal procedure to detect outliers in multilevel models

2008

"Table 171" of "Measurements of $t\bar{t}$ differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in $pp$ col…

2018

all 15 variables correlation matrix for absolute differential cross-section in parton level

"Table 172" of "Measurements of $t\bar{t}$ differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in $pp$ col…

2018

all 15 variables correlation matrix for relative differential cross-section in parton level

A PDE model for the spatial dynamics of a voles population structured in age

2020

Abstract We prove existence and stability of entropy weak solutions for a macroscopic PDE model for the spatial dynamics of a population of voles structured in age. The model consists of a scalar PDE depending on time, t , age, a , and space x = ( x 1 , x 2 ) , supplemented with a non-local boundary condition at a = 0 . The flux is linear with constant coefficient in the age direction but contains a non-local term in the space directions. Also, the equation contains a term of second order in the space variables only. Existence of solutions is established by compensated compactness, see Panov (2009), and we prove stability by a doubling of variables type argument.

Detachment From Parents, Problem Behaviors, and the Moderating Role of Parental Support Among Italian Adolescents

2012

This study examined the relationship of emotional detachment from parents, parental support, and problem behaviors and focused on the unique and common contribution that detachment and parental support made to internalizing and externalizing behavioral problems. A total of 461 young adolescents, 13 to 14 years old ( M = 13.4; SD = 0.44), 234 boys and 227 girls, completed self-reporting measures of detachment, parental support, and internalizing and externalizing problems. Data showed that detachment was related positively to internalizing problem behaviors. Results revealed that parental support played a moderating role in the relationship between detachment and internalizing problems, suc…

Symptoms of Depression and Status in the European Labour Market

2017

This study uses three rounds of European Social Survey to study the effects from the status in the labour market of individuals from general population on the strength of their depression symptoms. Particular interest is in the comparison of the mismatched (over- and undereducated) to other kinds of status. Mismatch is defined by a normative (ISCO-based) measure. The main result is that not only overeducation but also (though to a smaller extent) undereducation is associated with an increased presence of depression symptoms. Health, income, personality, religion, the frequency of watching news on TV and partner’s status in the labour market are among the independent variables.

Early Referral to an ALS Center Reduces Several Months the Diagnostic Delay: A Multicenter-Based Study.

2020

Objective: To analyze those factors contributing to the diagnostic delay in ALS.Methods: Consecutive ALS patients were categorized as those studied in departmental hospitals and those studied in a referral ALS center. Demographic and clinical variables, together with data of the diagnostic pathway were collected. Multivariable models were used to assess their effect in the time between symptoms onset and the first neurologist visit (time symptoms-neurologist), in the time between the first neurologist visit and the diagnosis (time neurologist-diagnosis) and in the diagnostic delay.Results: 166 ALS patients with a median diagnostic delay of 11.53 months (IQR: 6.68, 15.23) were included. The …

Graphical models for estimating dynamic networks

2012

Het bepalen van dynamische netwerken met behulp van data is een actief onderzoeksgebied, met name in de systeem biologie. Het schatten van de structuur van een netwerk heeft te maken met het bepalen van de aan of afwezigheid van een relatie tussen de hoekpunten in de graaf. Grafische modellen definiëren deze relaties via conditionele afhankelijkheid. In Gaussiaanse grafische modellen (GGM) wordt verondersteld dat de hoekpunten een normale verdeling volgen. Dit heeft grote voordelen vanwege de computationele handelbaarheid van GGM. Standaard GGM zijn echter niet bruikbaar om grote netwerken te bestuderen, i.e. als het aantal waarnemingen minder is dan het aantal hoekpunten van de graaf. Rece…

Empirical Estimation of Accumulation-Induced Change in Gill Net Catchability: Mind the Observation Errors

2015

We analyzed cumulative catches for 24 h gill net exposures divided into 4*6 h, 2*12 h and 1*24 h soak time treatments to estimate the reduction in its catchability due to accumulation of fish. The effects of loss of catch during net lifting, disturbance effect and fouling were eliminated as far as possible to reveal the true effect of accumulation. First we applied simple nonparametric and parametric tests in comparison of treatments. As expected, considerable reduction in catchability took place along with the increase in soak time, indicated by significantly lower total 24 h catches from longer soaks in comparison with shorter ones. The reduction was more pronounced for roach than for per…

Task persistence mediates the effect of children’s literacy skills on mothers’ academic help

2015

This longitudinal study aimed at examining the relationship between children's task persistence, mothers' academic help, and the development of children’s literacy skills (reading and spelling) at the beginning of primary school. The participants were 870 children, 682 mothers, and 53 class teachers. Data were collected three times – at the beginning and the end of Grade 1 and at the end of Grade 2. Better literacy skills predicted higher persistence in completing school tasks and, correspondingly, higher persistence was related to better subsequent skills. Also, lower task persistence at the end of Grade 1 corresponded to more frequent academic help from mothers in Grade 2. Moreover, child…