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 20 for “"multiple-stress"”.
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A multiple stress, multiple component stress screening cost model
Environmental stress screening is used to enhance reliability by decreasing the number of failures experienced during customer use. It is suggested that added benefit can be gained by applying multiple stresses rather than a single stress, as is done presently. A further modification is to apply …
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Correlation between multiple stress creep recovery (MSCR) results and polymer modification of binder
… developed by the Federal Highway Administration, Multiple Stress Creep Compliance (MSCR), offers a simpler procedure using the Dynamic Shear Rheometer (DSR), thus it does not require the expense of purchase additional testing equipment. The objective of this study is to determine the feasibility …
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Use of directed evolution to generate multiple-stress tolerant Oenococcus oeni for enhanced malolactic fermentation
… efficient malolactic fermentation in wine with multiple stressors. First, a previously evolved ethanol tolerant strain, A90, was characterised for resistance to combined pH and ethanol stress in both MRSAJ and Red Fermented Chemically Defined Grape Juice Medium (RFCDGJM). A90 showed a similar …
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FUNCTIONAL DISSECTION OF ADIPOKINETIC HORMONE PRODUCING CELLS
… and behavioral response to metabolic stress. Animals lacking AKH display multiple stress phenotypes including increased lifespan under starvation and the absence of starvation-induced locomotion. Research has primarily focused on understanding the downstream targets of AKH action, …
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Development and validation of a novel testing procedure for the evaluation of rutting susceptibility of bituminous binders.
… combining Single Creep-Recovery (SCR) tests with Multiple Stress Creep (MSC) tests on DSR. Low shear viscosity (LSV) and Multiple Stress Creep Recovery (MSCR) tests were also performed for comparison purposes. LSV and MSCR tests are currently known as standard procedure for the evaluation of …
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Physiological and cellular characterization of a plant natriuretic peptide
Plants in the field are exposed to multiple stresses and their response to these various stresses determines their capacity to survive. Plants can use multiple signaling pathways and signals to mediate their response; for example, at least four different signal pathways have been identified for …
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The IMAGINE Project: Inspiring Vulnerable Adults Through Art and Mindfulness
… IMAGINE Project</em> tackles the issue of stress reduction for a population that faces high stress levels due to environmental instability with co-morbidities of prior physical, cognitive, and social issues. Despite the need of stress reduction approaches in a population under these …
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A maternal low-protein diet during gestation induces hepatic autophagy gene expression only in the female offspring Sprague-Dawley rats
… with inducting of gene expression programs. Multiple stress-induced genes are known to be activated through eIF2α phosphorylation and induction of activating transcription factor 4 (ATF4), which also potentially play a role in autophagy related-genes expression. The present study investigates …
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Neuro-Symbolic Methods for Natural Language Inference and Question Answering
… have achieved state-of-the-art performance on multiple natural language processing benchmarks, those black-box models can hardly provide explanations for their inner mechanisms. They still lack the ability to perform systematic reasoning like human beings and generalize poorly to …
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A Mechanistic Evaluation of the Role of Aneuploidy During Oncogenesis
… detrimental to cell physiology, where it elicits multiple stress responses and impairs cell proliferation. Paradoxically, aneuploidy is also a hallmark of cancer and high degrees of aneuploidy in tumors are often associated with aggressive disease progression and poor prognosis. It is thus …
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Study of properties of sand asphalt using a torsional rheometer
… framework for materials possessing multiple natural configurations (multiple stress free states) to derive the constitutive equations. Recently an Orthogonal Rheometer was built to characterize the granular solids by Gupta and Rajagopal which was later used by Baek in the torsional …
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Optimization and characterization of asphalts modified with isocyanate modifier
… performance of B2last modified asphalt in the Multiple Stress Creep and Recovery experiment, the formulations of ternary modified asphalts containing B2last and vulcanized SBS were studied via the Design of Experiments. A positive interaction between the materials was found at high service …
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Regulation of C. elegans behavior and physiology by the hypoxia-response pathway
… functions in immunity, oxidative and other stress responses, and behavior; how HIF targets drive these aspects of animal physiology is poorly understood. In this dissertation, I describe genetic analyses of the nematode C. elegans that have provided insight into the function of HIF targets …
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Rheological and nanomechanical characterization of aging in polymer modified asphalt
… using Dynamic Shear Rheometer (DSR) test, Multiple Stress Creep Recovery (MSCR) test, Bending Beam Rheometer (BBR) test, Rotational Viscosity (RV) test and the Direct Tension (DT) test. Nanomechanical properties such as hardness and reduced elastic modulus are determined using a …
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NAC transcription factors in sugarcane and their functional role in drought tolerance
… due to the complex, polygenic nature of abiotic stress responses, highlighting the importance of identifying single regulatory elements capable of modulating multiple stress response pathways. NAC (No apical meristem [NAM], Arabidopsis transcription activation factor [ATAF], Cup-shaped cotyledon …
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Permanent Deformation Behavior of Airport Flexible Pavement Base and Subbase Courses
… following a wander pattern. Realistic pavement stresses induced by moving wheel loads were examined in the unbound aggregate base and subbase layers and the important effects of rotation of principal stress axes were indicated for a proper characterization of the permanent deformation behavior. …
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Development of a Mechanistic-Based Approach to Evaluate Critical Conditions of Hot Mix Asphalt Mixtures
… dynamic mechanistic analysis with circular stress distribution was used to simulate field loading conditions. Extensive mechanistic analyses of three different asphalt pavement structures subjected to moving traffic loads at various speeds and under braking and non-braking conditions were …
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The Development of a Bacterial Biosensor Designed to Detect Oxidative Chemicals in Water: Correlating Sensor Relevance to Mammalian Brain Cells and Assessing Bacterial Cell Immobilization Strategies
Oxidative stress-inducing chemical contamination in the environment is a significant concern for public health. The depletion of antioxidants by these chemicals results in oxidative stress which may cause detrimental effects in many cell types. For example, multiple stress responses may be …
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Dryland vulnerability : typical patterns and dynamics in support of vulnerability reduction efforts
… exacerbated by natural and socio-economic stresses, including weather extremes and inequitable trade conditions. Therefore, a better understanding of the relation between these stresses and the socio-ecological systems is important for advancing dryland development. The concept 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 …