Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 53 for “"Age effects"”.
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Age effects on the gait kinematics to negotiate surface height changes
The primary aim of this study was to ascertain the biomechanical mechanisms or reasons for the high rate of falling behaviour exhibited by the elderly adult female population in terrain containing surface height changes. As such, this study specifically; (1) focused upon elderly and young adult …
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Environmental and age effects on methylation changes in human brain and blood cells
… the rate of aging and genetics. In this thesis, age is accurately predicted from DNA methylation in brain and blood tissues using two different algorithms, Random Forest and Linear Regression. Relationships between DNA methylation, genetics, disease and aging rate were also identified. …
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Age Effects on Social and Investigative Behaviors in a Closed Population of African Elephants
… investigation of chemical signals differed by age and sex. The social dominance hypothesis was supported by the proportion of snuffs performed to feces, while the average rate of sniffs supported the reproductive success hypothesis. Social behaviors chnaged between the younger (calf - juvenile) …
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Prior knowledge and age effects in memory: Implications for episodic and short-term/immediate memory
The ageing literature shows robust age-related declines in immediate (e.g. Bopp & Verhaeghen, 2005; Multhaup, Balota & Cowan, 1996; Verhaeghen, 2002; Verhaeghen, Marcoen & Goosens, 1993) and episodic memory (Fleischman, Wilson, Gabrieli, Bienias & Bennett, 2004; Park, 2000; Schaie, 2005; Singer, …
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Prior Knowledge and Age Effects in Memory: Implications for Episodic and Short-term/ Immediate Memory
The ageing literature shows robust age-related declines in immediate (e.g. Bopp & Verhaeghen, 2005; Multhaup, Balota & Cowan, 1996; Verhaeghen, 2002; Verhaeghen, Marcoen & Goosens, 1993) and episodic memory (Fleischman, Wilson, Gabrieli, Bienias & Bennett, 2004; Park, 2000; Schaie, 2005; Singer, …
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The sensitive period for second language acquisition: An experimental study of age effects on universal grammar and language transfer
… the Sensitive Period Hypothesis for second language acquisition and to find out its nature. Speed (reaction time) of responses was measured in addition to grammaticality judgment so that the subjects' conscious monitoring of linguistic processes could be kept at a minimum. The reaction time …
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Muscle Fatigue during Isometric and Dynamic Efforts in Shoulder Abduction and Torso Extension: Age Effects and Alternative Electromyographic Measures
… numerous changes in the neuromuscular system. Age effects on muscular performance, however, have been addressed only in limited contexts in earlier research. The present work was conducted primarily to investigate age-related effects on muscle capacity (fatigue and endurance) during isometric …
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Relative age effects: exploring possible solutions and the relationships between relative age, sport participation, education, and indicators of positive youth development
Relative age occurs when youth are placed into age groups in sport and education. Relative Age Effects (RAE) indicate that being born closer to the cutoff date holds an advantage in sport and academic outcomes. Study 1 explores what effects relative age has on educational achievement, participation …
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Periodontal conditions in relation to low-dose aspirin therapy in ex- and non-smokers
… the periodontal status of a sample of 392 men aged 50 and above with respect to aspirin intake and smoking history. Significant age effects were found on periodontal attachment loss (PAL) but these were of small magnitude in comparison to the significant influences that aspirin and ex-smoking …
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A sensitive period for second language acquismon: A reaction-time study of grammaticality juooments of English by Korean-English bilinguals
… the sensitive period hypothesis in second language acquisition: (1) Does a sensitive period exist in SLA? (2) If so, what characterizes the period? (3) Can the sensitive period be explained by age or by confounding affective factors? (4) What grammatical categories are most affected by age? For …
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DEVELOPMENT OF INDIVIDUAL VARIABILITY IN FUNCTIONAL CONNECTIVITY AND ITS ASSOCIATIONS WITH COGNITION AND PSYCHOPATHOLOGY IN YOUTH
… to the brain structure-function decoupling; age effects on the interindividual FC variability were mediated by brain functional specialization and integration. The interindividual FC variability at different developmental stages revealed a maturation focus shifting from complex cognition to …
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Assessing the Degree to Which Domain Specific Experience Can Offset Age -Related Decline on Basic Cognitive Abilities and Complex Task Performance
… cognitive abilities as a function of increasing age. However, it has been suggested and demonstrated in limited instances that domain-specific experience can help mitigate decline of specific abilities that underlie complex task performance. The present study sought to investigate whether or not …
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Neuropsychological assessment of Spanish-speaking populations: translations and norms for three tests
… 148 Spanish-speaking participants stratified by age and education are provided. Current results reveal age effects on both memory and nonverbal measures. Generally, performance declines with increasing age. There were no effects of education on the memory measures. Education effects were present …
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Children's Word-Finding Test (Revised): Diagnostic utility, developmental influences, and construct dimensions in a heterogeneous clinic-referred sample.
… heterogeneous children between the ages 6 through 8 years inclusive who were assessed on a comprehensive neuropsychological battery of tests in the Windsor-Detroit region. CWFT-R performance of the 7- and 8-year-old clinic-referred children was compared to a 7- and 8-year-old sample …
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Rapid assessment of the potential chloride resistance of structural concrete
… of chloride diffusion over the test period. The ageing factor of concrete mixes, which describes the development of diffusion coefficient (D) from the unsteady to steady-state determined from this research was compared with those reported in The Concrete Society Technical Report 61. Test …
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Historical Changes in Elderly Cohorts' Attitudes toward Mental Health Services
… Biases and Breadth scores in 2000 than in 1991. Age effects, gender effects, and interactions were also examined. Possible historical influences were discussed along with implications for the delivery of mental health care to future cohorts of older adults.
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Will millennials save the planet? : generational trends in vehicle ownership & use
… vehicle ownership and use arises from both age effects and different underlying demographics. Millennials may be saving the planet with their changing demographics, not because they are fundamentally rejecting personal vehicle ownership and use.
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Military Versus Civilian Murder-Suicide Psychological Profiles
… the civilian, perpetrator group was predicted by age, reflecting the significance of a more than 15-year difference in mean age between the two groups and suggesting that many of the differences observed between the groups could be at least partially attributable to age effects. Findings from this …
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