Search results for "amp"

showing 10 items of 10184 documents

The relative contribution to the plantar-flexor torque of the soleus motor units activated by the H reflex and M response in humans.

2000

Abstract This study proposes a method of quantifying the relative contribution to the plantar-flexor torque of soleus H and M responses evoked by tibial nerve stimulation. For ten subjects, the amplitude of the twitch produced by the H wave was plotted against the corresponding potential, for stimuli producing H without M (i.e. in the ascending portion of the H-recruitment curve). It was then assumed that the contribution of H to twitches produced by M plus H was similar for similar H waves on the curve-descending portion. Hence, the contribution of M was estimated, for the range of M waves including those accompanying H max . The estimated mechanical contributions of H and M wave increase …

AdultMaleAction PotentialsPlantar flexionH-ReflexNuclear magnetic resonanceTorqueHumansTibial nerveMuscle SkeletalSoleus musclePhysicsElectromyographyGeneral NeuroscienceAnatomyM responsemusculoskeletal systemElectric StimulationMotor unitAmplitudeMuscle Fibers Slow-TwitchTorqueMuscle Fibers Fast-TwitchH-reflexTibial NerveMuscle ContractionNeuroscience letters
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Adjustment disorder as proposed for ICD-11: Dimensionality and symptom differentiation

2014

Although Adjustment Disorder as a diagnostic category is widely used in clinical practice it is critically discussed that it has not been conceptualized as a category with unique symptoms. Hence, the conceptualization of Adjustment Disorder is subject to substantive change in ICD-11 including core symptoms and additional features in a uni-faceted concept. Adjustment Disorder was assessed with a self-rating instrument in a representative sample of the German general population (N=2512). Confirmatory factor analyses (CFA) were applied to test the dimensionality of symptoms according to the new diagnostic concept. Latent class analysis (LCA) was applied to test whether there are distinguishabl…

AdultMaleAdolescentAdjustment disordersPopulationSample (statistics)Developmental psychologyDiagnostic Self EvaluationAdjustment DisordersDiagnostic Self EvaluationYoung AdultInternational Classification of DiseasesGermanymedicineHumansYoung adulteducationBiological PsychiatryReliability (statistics)AgedAged 80 and overeducation.field_of_studyConceptualizationReproducibility of ResultsMiddle Agedmedicine.diseaseLatent class modelPsychiatry and Mental healthFemaleSymptom AssessmentFactor Analysis StatisticalPsychologyPsychiatry Research
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Reliability and factor structure of the Finnish version of the Sport Imagery Questionnaire.

2006

The aim of this study was to examine the reliability and factor structure of the Finnish version of the Sport Imagery Questionnaire, a measure which examines cognitive and motivational functions of imagery. The final sample comprised 231 participants drawn from 34 sports and ranging in age from 14 to 49 years ( M = 20.9, SD= 5.8). Internal consistency and confirmatory factor analyses were undertaken to evaluate the reliability and factorial validity of the scale. Fit indices and modification data generated from examining the 30-item five-factor model were equivocal, suggesting minor amendment and recategorization of several items rather than major adjustment to the proposed latent factor s…

AdultMaleAdolescentApplied psychologyExperimental and Cognitive PsychologySample (statistics)050105 experimental psychology03 medical and health sciences0302 clinical medicineCronbach's alphaSurveys and QuestionnairesHumans0501 psychology and cognitive sciencesReliability (statistics)FinlandbiologyAthletes05 social sciencesReproducibility of ResultsCognition030229 sport sciencesMiddle Agedbiology.organism_classificationSport psychologySensory SystemsTest (assessment)Scale (social sciences)ImaginationFemalePsychologyFactor Analysis StatisticalSocial psychologySportsPerceptual and motor skills
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Somatic symptoms in the Eastern and Western states of Germany 30 years after unification: Population-based survey analyses.

2021

Background Following German reunification, physical health indicators in the formerly separated states (German Democratic Republic- East/ Federal Republic of Germany-West) have converged. However, it remains unclear how these societal changes have impacted somatic complaints, a major indicator of physical and mental health. Therefore, we investigated how somatic symptom reporting in men and women evolved regarding residency. Methods We administered cross-sectional surveys representative of the German population with comparable sample size in 1994 (N = 3047), 2001 (N = 2050), 2013 (N = 2508) and 2019 (N = 2531) following random route procedure. Men and women aged 14-99 reported demographics …

AdultMaleAdolescentFederal republicPopulation healthGerman03 medical and health sciencesYoung Adult0302 clinical medicineGermanySurveys and QuestionnairesComplaintMedicineHumans030212 general & internal medicineSocioeconomic statusAgedAged 80 and overbusiness.industryPhysical healthMiddle AgedMental healthlanguage.human_languagePsychiatry and Mental healthClinical PsychologyCross-Sectional StudiesMedically Unexplained SymptomsSocioeconomic FactorsSample size determinationlanguageFemalebusiness030217 neurology & neurosurgeryDemographyJournal of psychosomatic research
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Analysis of persistence of human papillomavirus infection in men evaluated by sampling multiple genital sites.

2015

Although human papillomavirus (HPV) infection has been studied extensively in women, data on male infection are limited. The purpose of this study was to investigate persistence of HPV infection at multiple genital sites in men and to define potential associations with socio-behavioural characteristics.Penile, urethral and seminal specimens were tested by the INNO-LiPA HPV system (Innogenetics) and a PCR assay. Persistence was defined as the detection of same HPV type at ≥ 2 consecutive visits. The Kaplan-Meier method and the log-rank test were applied to estimate the likelihood of persistence.A total of 50 men (median age: 33 years) were followed for a median of 14.7 months. Altogether, 49…

AdultMaleAdolescentGenotypePapillomavirus InfectionsSocio-culturaleGenital sampling; HPV infection; Men; Multiple sampling; PersistenceMenMiddle AgedPolymerase Chain ReactionSpecimen HandlingPersistenceCohort StudiesYoung AdultUrethraSemenMultiple samplingHPV infection Genital sampling Men Persistence Multiple samplingHPV infectionHumansFemaleGenital samplingPapillomaviridaePenisEuropean review for medical and pharmacological sciences
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Influence of lifestyle on oral health behavior among rural residents of Udaipur district, India

2010

Objectives: To determine the relation of life style with dental health behavior such as tooth brushing frequency, use of extra cleansing devices and regular visits to dentist among rural residents of Udaipur district, India. Study design: The study population comprised of 1001 rural population between the ages 18 to 69 years selected by multi stage stratified cluster sampling procedure. Personal interviews were conducted by three trained interviewers who collected information on socio-demographic and lifestyle factors in addition to some aspects of dental health behavior including tooth brushing frequency, use of extra cleaning devices like dental floss and regular visits to dentist. Result…

AdultMaleAdolescentHealth BehaviorPopulationIndiaDentistryRural HealthLogistic regressionTooth brushingYoung AdultDental flossstomatognathic systemHumansMedicineYoung adulteducationLife StyleGeneral DentistryAgededucation.field_of_studybusiness.industryRural healthMiddle AgedOral Hygiene:CIENCIAS MÉDICAS [UNESCO]stomatognathic diseasesOtorhinolaryngologyUNESCO::CIENCIAS MÉDICASPopulation studyFemaleSurgeryCluster samplingbusinessDemographyMedicina Oral Patología Oral y Cirugia Bucal
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Four Wellbeing Patterns and their Antecedents in Millennials at Work

2018

Literature suggests that job satisfaction and health are related to each other in a synergic way. However, this might not always be the case, and they may present misaligned relationships. Considering job satisfaction and mental health as indicators of wellbeing at work, we aim to identify four patterns (i.e., satisfied-healthy, unsatisfied-unhealthy, satisfied-unhealthy, and unsatisfied-healthy) and some of their antecedents. In a sample of 783 young Spanish employees, a two-step cluster analysis procedure showed that the unsatisfied-unhealthy pattern was the most frequent (33%), followed by unsatisfied-healthy (26.6%), satisfied-unhealthy (24.8%) and, finally, the satisfied-healthy patter…

AdultMaleAdolescentHealth Toxicology and Mutagenesismedia_common.quotation_subjectHealth Statuslcsh:Medicine050109 social psychologySample (statistics)WorkloadDisease clusterRole conflictArticleYoung Adultwellbeing0502 economics and businessHumans0501 psychology and cognitive sciencesMillennialsmedia_commonjob satisfactionwellbeing misalignment05 social scienceslcsh:RPublic Health Environmental and Occupational HealthOverqualificationhealthAmbiguityLinear discriminant analysisMental healthMental HealthSpainJob satisfactionFemalePsychologySocial psychology050203 business & managementInternational Journal of Environmental Research and Public Health
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Large-scale network architecture and associated structural cortico-subcortical abnormalities in patients with sleep/awake-related seizures.

2019

Study objectives In this study, we aimed to estimate the alterations of brain networks and structural integrity linked to seizure occurrence during sleep and awake states. Methods Using a graph theory approach to magnetic resonance imaging-derived volumes of cortical and subcortical regions, we investigated the topological organization of structural networks in patients with sleep seizures (n = 13), patients with awake seizures (n = 12), and age- and sex-matched healthy controls (n = 10). Abnormalities in regional structural substrates (cortical volume/surface area, subcortical volumes) associated with sleep seizures and awake seizures were further analyzed. Results Brain networks in patien…

AdultMaleAdolescentHippocampusEpileptogenesisAmygdala03 medical and health sciencesYoung Adult0302 clinical medicineSeizuresPhysiology (medical)medicineHumansIn patientWakefulnessCerebral CortexBrain MappingEpilepsymedicine.diagnostic_testbusiness.industryPutamenMagnetic resonance imagingMiddle AgedSleep in non-human animalsMagnetic Resonance Imagingmedicine.anatomical_structure030228 respiratory systemFemaleNeurology (clinical)Nerve NetbusinessSleepInsulaNeuroscience030217 neurology & neurosurgerySleep
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Cardiac involvement in Friedreich's ataxia: our experience.

2009

AdultMaleAdolescentIncidenceFriedreich's ataxiaMiddle AgedAntioxidantsSampling StudiesFriedreich AtaxiaPrevalenceHumansFemaleHypertrophy Left VentricularSicilyAntihypertensive AgentsFollow-Up StudiesRetrospective Studies
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Impaired Right Temporoparietal Junction–Hippocampus Connectivity in Schizophrenia and Its Relevance for Generating Representations of Other Minds

2018

Schizophrenia is associated with impaired and exaggerated Theory of Mind processes, pointing on alterations in generating a representation of another person's mind. Despite recent work on healthy subjects suggesting that a coupling between the right temporoparietal junction (rTPJ) and the hippocampus is relevant for building representations of others' intentions, the neural basis of related dysfunctions in patients with schizophrenia remains unclear. Therefore, we used structural and functional magnetic resonance imaging together with a modified prisoner's dilemma game to test the hypotheses, that patients show dysfunctional social updating on behavioral level accompanied by altered rTPJ-hi…

AdultMaleAdolescentMiddle temporal gyrusTemporoparietal junctionTheory of MindHippocampusYoung Adult03 medical and health sciences0302 clinical medicineSocial cognitionParietal LobeTheory of mindConnectomemedicineHumansSocial BehaviorFusiform gyrusmedicine.diagnostic_testMiddle Agedmedicine.diseaseMagnetic Resonance ImagingTemporal Lobe030227 psychiatryPsychiatry and Mental healthmedicine.anatomical_structurePsychotic DisordersSocial PerceptionMentalizationSchizophreniaSchizophreniaFemalePsychologyFunctional magnetic resonance imaging030217 neurology & neurosurgeryRegular ArticlesCognitive psychologySchizophrenia Bulletin
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