Search results for "FACTOR"

showing 10 items of 17757 documents

Regulation of type 1 fimbriae synthesis and biofilm formation by the transcriptional regulator LrhA of Escherichia coli

2005

Type 1 fimbriae ofEscherichia colifacilitate attachment to the host mucosa and promote biofilm formation on abiotic surfaces. The transcriptional regulator LrhA, which is known as a repressor of flagellar, motility and chemotaxis genes, regulates biofilm formation and expression of type 1 fimbriae. Whole-genome expression profiling revealed that inactivation oflrhAresults in an increased expression of structural components of type 1 fimbriae.In vitro, LrhA bound to the promoter regions of the twofimrecombinases (FimB and FimE) that catalyse the inversion of thefimApromoter, and to the invertible element itself. TranslationallacZfusions with these genes and quantification offimEtranscript le…

urinary-tractphase variationFimbrialac operonRepressorsuicide vectorBiologyFlagellummedicine.disease_causeMicrobiologyBacterial AdhesionMicrobiologylysr homologMiceglobal regulatorh-nsEscherichia colimedicineAnimalsHumansgenetic-analysisPromoter Regions GeneticEscherichia coliEscherichia coli InfectionsOligonucleotide Array Sequence AnalysisPhase variationRegulation of gene expressionfim switchEscherichia coli ProteinsGene Expression ProfilingBiofilmGene Expression Regulation Bacterialbiochemical phenomena metabolism and nutritionintegration host factorBiofilmsFimbriae BacterialMutationUrinary Tract Infectionsvirulence determinantsTranscription Factors
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Uzależnienia medialne wśród dzieci i młodzieży - czy rodzice jeszcze na nie zwracają uwagę?

2022

uzależnienia medialnekontrola rodzicielskarisk factors for addictionmedia addictionsczynniki ryzyka uzależnieniaparental control
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Metabolic health, menopause, and physical activity : a 4-year follow-up study

2022

Background In women, metabolic health deteriorates after menopause, and the role of physical activity (PA) in mitigating the change is not completely understood. This study investigates the changes in indicators of metabolic health around menopause and evaluates whether PA modulates these changes. Methods Longitudinal data of 298 women aged 48–55 years at baseline participating in the ERMA and EsmiRs studies was used. Mean follow-up time was 3.8 (SD 0.1) years. Studied indicators of metabolic health were total and android fat mass, waist circumference, waist-to-hip ratio (WHR), systolic (SBP) and diastolic (DBP) blood pressure, blood glucose, triglycerides, serum total cholesterol, and high…

vaihdevuodetrisk factorsseurantatutkimusriskitekijätmetabolinen oireyhtymämetabolic syndromefyysinen aktiivisuus
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Resilience and the Aging Process: Assessment Tools and Needs

2015

Abstract Successful resilience is a variable often related to an optimal aging process and that might have a role on education. However, literature is rather limited when dealing with assessment instruments for the elderly in the Spanish language. The objective of this work is to examine the Brief Resilient Coping Scale (Sinclair &Wallston, 2004), a four item likert scale, in the Spanish elderly. This scale was administrated to a sample of 920 elderly Spanish participants, and the data set analysed in terms of exploratory and confirmatory factor analysis and internal consistency. The scale demonstrated good psychometric properties. Furthermore, the homogeneity indices were higher than in th…

validationCoping (psychology)Spanish languageProcess assessmentApplied psychologyAssessment instrumentBrief Resilient Coping ScaleelderlyConfirmatory factor analysisLikert scaleInternal consistencyGeneral Materials SciencePsychologySocial psychologyProcedia - Social and Behavioral Sciences
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An Updated Guideline for Assessing Discriminant Validity

2022

Discriminant validity was originally presented as a set of empirical criteria that can be assessed from multitrait-multimethod (MTMM) matrices. Because datasets used by applied researchers rarely lend themselves to MTMM analysis, the need to assess discriminant validity in empirical research has led to the introduction of numerous techniques, some of which have been introduced in an ad hoc manner and without rigorous methodological support. We review various definitions of and techniques for assessing discriminant validity and provide a generalized definition of discriminant validity based on the correlation between two measures after measurement error has been considered. We then review te…

validationaverage variance extractedconfirmatory factor analysismittaustilastomenetelmätkvantitatiivinen tutkimusorganisaatiotutkimuscross-loadingsheterotrait-monotrait ratiofaktorianalyysiMonte Carlo -menetelmätvalidointimeasurementMonte Carlo simulationdiscriminant validity
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Spanish Validation of the Flourishing Scale in the General Population

2017

Well-being research and its measurement have grown in the last two decades. The objective of this study was to adapt and validate the Flourishing Scale in a sample of Spanish adults. This was a cross-sectional study using a non-probabilistic sample of 999 Spanish general adult population participants. The psychometric properties of the scale were analysed from an exploratory and confirmatory perspective. Exploratory factor analysis showed a one-factor solution explaining 42.3% of the variance; an internal consistency of .846; temporal reliability correlation of .749; convergent validity with the Satisfaction with Life Scale of .521 and criterion validity with positive and negative affect (P…

validationconfirmatory factory analysis050103 clinical psychologyeducation.field_of_studyInstrumental studies05 social sciencesPopulation050109 social psychologyadaptationpsychometric propertiesExploratory factor analysisStructural equation modelingConfirmatory factor analysisDevelopmental psychologyConvergent validityScale (social sciences)StatisticsCriterion validity0501 psychology and cognitive sciencesPsychologyeducationGeneral PsychologyReliability (statistics)flourishing
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Psicothema

2021

Resumen tomado de la publicación Propiedades psicométricas de la versión española del Cancer Survivors’ Unmet Needs (CaSUN-S) en cáncer de mama. Antecedentes: el Cancer Survivors’ Unmet Needs (CaSUN) ha sido desarrollado para esta población, pero varias cuestiones sobre sus propiedades estructurales permanecen inconclusas. Método: este estudio prueba el modelo teórico, la solución empírica de los autores originales y una nueva propuesta racional del CaSUN utilizando Análisis Factorial Confirmatorio; también analiza su fiabilidad y validez convergente. 566 supervivientes de cáncer de mama completaron el CaSUN, el Inventario Breve de Síntomas-18 (BSI-18) y el Quality of Life in Adult Cancer S…

validezpsicometríacáncercuestionarioanálisis factoriallengua española
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Psicothema

2017

Resumen tomado de la publicación Desarrollo y validación de la Escala de Valoración del Conflicto (WCAS). Antecedentes: en el contexto de la valoración cognitiva se ha desarrollado la escala de Evaluación del Conflicto en el Trabajo (WCAS) que permite evaluar el conflicto en términos de desafío y amenaza. Método: el Estudio 1 contó con 296 trabajadores con los que se puso a prueba la estructura factorial de la escala usando análisis factorial confirmatorio. En el Estudio 2, con 815 trabajadores, se realizó un análisis factorial confirmatorio multi-muestra, para la validación cruzada de los resultados. Resultados: los análisis confirman la validez de la escala y son consistentes con la clasi…

validezpsicometríaescala de actitudambiente laboralanálisis factorialconflicto
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Psicothema

2014

Resumen tomado de la publicación Propiedades psicométricas de la versión española de la Escala de Conductas Controladoras del Entrenador en el contexto deportivo. Antecedentes: el objetivo del trabajo consistió en traducir al castellano y examinar las propiedades psicométricas de la versión española de la Escala de Conductas Controladoras del Entrenador (CCBS) en futbolistas varones. La CCBS fue diseñada para medir la percepción que los deportistas tienen del estilo interpersonal controlador del entrenador, desde la Teoría de la Autodeterminación. Método: el Estudio 1 analizó la estructura factorial utilizando el Análisis Factorial Confirmatorio (AFC) y ofreció evidencia de validez discrimi…

validezpsicometríatestdeporteValenciaanálisis factoriallengua española
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Psychometric properties and factor structure of the Satisfaction with Life Scale in an elderly Portuguese retirees students sample

2017

El objetivo principal de este estudio ha sido analizar las propie- dades psicométricas de la escala de Satisfacción con la Vida (SWLS) en una muestra de 363 estudiantes jubilados pertenecientes a varias universidades portuguesas. El 70% de los participantes eran mujeres frente a un 30% de hombres, con una media de edad de 67 años (SD = 7.59) y un rango de edad comprendido entre 48 y 90 años. Se realizó un Análisis Factorial Ex- ploratorio con R Commander y un Análisis Factorial Confirmatorio con Amos 18.0. El modelo que obtuvo un mejor ajuste estaba compuesto por un único factor. El índice de consistencia interna de la escala en su conjun- to fue de .777. En cuanto a la validez concurrente,…

validity and reliability.Concurrent validity050109 social psychologySample (statistics)ValiditymedicinelonelinessPsychology0501 psychology and cognitive sciencesGeneral PsychologyDepression05 social sciencesLife satisfactionLonelinessReliabilityConfirmatory factor analysisExploratory factor analysislanguage.human_languageBF1-990159.9(05)050106 general psychology & cognitive sciencesScale (social sciences)languagemedicine.symptomPortuguesePsychologySatisfaction with lifeClinical psychologyAnales de Psicología
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