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 17 of 17 for “"developmental stress"”.
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Developmental stress in birds: phenotypic and fitness
… Increasing evidence suggests that physiological stress may be one such cue that conveys environmental information to developing animals. Here, I explore the short- and long-term consequences of developmental stress in captive and free-living birds. In chapter one, I explore the effects of …
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Developmental stress in birds: phenotypic and fitness
… Increasing evidence suggests that physiological stress may be one such cue that conveys environmental information to developing animals. Here, I explore the short- and long-term consequences of developmental stress in captive and free-living birds. In chapter one, I explore the effects of …
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Losing Connection: Developmental Stress and Synaptic Loss in Caenorhabditis elegans
… (AD). It is widely recognized that organismal stress can contribute to less desirable outcomes in AD and other related disorders. Using the nematode Caenorhabditis elegans as a model, we examine how organismal stress affects developmental and age-related synaptic formation and elimination and …
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Metabolic lipid regulation during developmental stress : fatty acid dynamics in fasting northern elephant seals.
Long chain fatty acids (LCFA) are important as fuel during exercise in humans, yet have pathological consequences during LCFA overabundance. The northern elephant seal (NES) (Mirounga angustirostris) is a temporally insulin resistant, deep-diving marine mammal reliant on fatty acid oxidation during …
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The effects of early developmental stress and exercise intervention on neurodegeneration in a rat model of Parkinson's disease
Early developmental stress has been shown to produce numerous deleterious effects, e.g. the later development of affective disorders, and this has been related to chronic enhanced hypothalamic-pituitary-adrenal axis activity. Animal studies have shown that maternally separated rats exhibit …
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Methamphetamine and cocaine effects on dopamine neurons in a rat model of developmental stress and attention-deficit/hyperactivity disorder
… disorder (ADHD) is a developmental disorder characterised by age-inappropriate levels of inattention, hyperactivity and impulsivity and is theorised to be caused by dopaminergic dysregulation. Developmental stress interrupts vulnerable periods of neural developmental …
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Age-at-Formation and Duration of Linear Enamel Hypoplasia and Accentuated (Pathological) Striae in Ancient, Modern, and Forensic Populations as an Indicator of Differential Developmental Stress
… (TXSTDSC). LEH and AS, as representative of stress events, were measured using a scanning electron microscope and DinoLiteTM from the line to the cervico-enamel junction. These measurements were placed into equations for age calculations. Age-at-formation and duration of stress episodes were …
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Understanding The Role Of Nutritional Stress In The Adult And Developing Zebra Finch
<p>Songbirds are particularly susceptible to stress during the sensitive period for song learning. Thus the developmental stress hypothesis (DSH) proposes that adult song reflects a male's early life environment during this period. Nutritional stress (NS) has been shown to cause deficits in song …
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Effect of maternal separation on stress-related proteins measured in a 6-hydroxydopamine rat model of Parkinson’s disease
… and research has implicated early life stress (ELS) as a potentiating factor to cell death in a rat model of Parkinson’s disease (PD). PD is a movement disorder resulting from the selective degeneration of dopamine neurons in the substantia nigra pars compacta (SNc). Dopamine neurons …
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Quantitative Analysis Demonstrates Most Transcription Factors Require only Simple Models of Specificity
… their gene expression to properly respond to developmental, stress or other environmental cues. A key part of this process is transcriptional regulation, which is largely accomplished by a complex network of transcription factor proteins: TFs) interact with their specific binding sites in the …
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An Investigation to Determine if a Model Group Counseling Program Can Affect the A-Trait and A-State Anxiety of Children Who Are Under Stress
The problem. While growing up, children undergo developmental stress as well as situational stress such as being ill, having an ill or handicapped parent, having divorcing parents or even having a parent who might be dying. How they cope with the stress depends on many factors such as their coping …
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Expression of fluctuating asymmetry in primate teeth: Analyzing the role of growth duration
… of the association between growth duration and developmental noise (DN) by examining fluctuating asymmetry (FA) in a non-sexually selected and a sexually selected structure. FA occurs as small, random deviations from bilateral symmetry without any directionality between sides. Extended periods …
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Low Temperature Induction of Males and Other Developmental Anomalies in a Self-Fertilizing Hermaphroditic Fish Species
… this species, and it may be that low temperature developmental stress is not a general challenge to this species.
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Brain and Cognitive Consequences of Early-Life Immune System Challenge in a Songbird
… the environment, is a trait that is sensitive to developmental conditions. Existing research supports the idea that the ability to develop and maintain cognitive abilities depends on the physiological condition of the individual, which can be influenced by the early environment. Alterations in …
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BEES AND WASPS IN A CHANGING ENVIRONMENT: MULTIPLE RESPONSES TO ANTHROPISED LANDSCAPES
… wing fluctuation asymmetry (a proxy for larval developmental stress) (A. plumipes, H. scabiosae, and P. dominula) were found in hotter and more fragmented urban areas. Furthermore, O. cornuta (in more fragmented urban areas) and A. plumipes (in hotter urban areas) appeared to have a visual …
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Infectious disease as a cause and consequence of phenotypic responses to challenge in a songbird species
… the first experiment, I examined how nutritional stress during nestling development impacted the magnitude of house finch responses to the bacterial pathogen Mycoplasma gallisepticum (MG). Although nutritional stress limited mass gain in nestlings, individual responses to MG did not vary with …
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Multifunctional Regulators of Cardiac Disease and Development
… function of MEF2 protein, which is to mediate stress-dependent cardiac remodeling. Mef2d null mice show impaired response to cardiac remodeling stresses such as pressure overload and chronic Β- adrenergic stimulation; hypertrophy, chamber dilation, fibrosis, and fetal gene activation were …