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.
Results
Showing 1 to 20 of 52 for “"high magnitude"”.
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Sacrificial bearing components for quasi-isolated response of bridges subject to high-magnitude, low-probability seismic hazard
… to address hazards comprising infrequent, large-magnitude earthquakes.
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On-Field Measurement of Head Impacts in Youth Football: Characterizing High Magnitude Impacts and Assessing Balance Outcomes
… on-field portion of this research investigated high magnitude head impacts that youth football players experience in games and practices. With previously validated data collection methods, linear and rotational head accelerations from head impacts were collected. Over the course of two seasons, …
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A range-wide disturbance history for Quercus alba in the eastern US
… The Northern Hardwood Forest Region featured the highest level of disturbance as compared to all other regions. The Central Hardwood Forest Region exhibited the second lowest rate of disturbance (as evidenced by the relativized release descriptors). In general, high-magnitude disturbances occurred …
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Identifying High Risk Individuals in Youth Football and Evaluating Tackling Technique
… account for a disproportionately large number of high-risk head impacts. As few as six players (6%) accounted for over 50% of all high-risk impacts seen in practice sessions. Technique used during tackling and tackle-absorption had considerable effect on head acceleration. Both the tackler and …
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ESCALATION OF COMMITMENT AND THE EFFECTS OF THE PRESENCE OF AN ALTERNATIVE INVESTMENT, MAGNITUDE OF LOSS AND MONITORING: STOPPING A PROJECT WHICH IS 90% COMPLETE
… the effects of an alternative investment, magnitude of loss and monitoring on the likelihood of continuing a project. The experimental design of the study was a 2 (presence of an alternative investment: yes or no) x 2 (monitoring: low or high) x 3 (magnitude of loss: low, medium or high) …
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Reach-scale controls of a pool-rapid channel during an extreme flood event : Sabie River, South Africa
… alluvial features and are influenced by rare, high magnitude flood events, which act as a major control to riparian landscape maintenance. Pool-rapid channels found in the Sabie River are particularly influenced by large floods because of their vulnerability to both sedimentation and scour …
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Investigating Variation in Launch Vehicle Atmospheric Impact by Launch Latitude and Season
… global heating as aviation CO2. Despite this high magnitude of emissions impact, few studies quantify the variation in launch vehicle emissions beyond exploring launch number or propellant type, and as such there are few proposed avenues for reducing industry impact. Here, we present two new …
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Diversity, equity, and inclusion (DEI) in the collegiate solo trumpet literature of the United States: establishing the standard repertoire
… to teach to their students, there was not a high magnitude of the value of Diversity, Equity, and Inclusion, with the exception of the category of “Solo Repertoire Approved of for Performance For Credit during an Undergraduate Program
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Net Flow Through Soft Porous Media Generated by a Periodic Mean-Zero Pressure Gradient
… gradients are composed of square waves, with a high magnitude positive pressure drop applied for 1/3 of the period and a negative pressure drop with half the magnitude applied for 2/3 of the period. We investigate the effect of varying the pressure magnitude and period. This setup uses a novel …
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Sexual Harassment -Related Posttraumatic Stress Disorder: An Investigation of Symptom Structure and Criterion A
… trauma (Criterion A1)? Does it need to be a high-magnitude event (e.g., rape), or can low-magnitude events (e.g., sexual harassment) precipitate PTSD? Third, should an intense emotional response to an event be required for a PTSD diagnosis (Criterion A2)? These questions were addressed in a …
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The Effects of Delay and Probabilistic Discounting on Green Consumerism
… how delay and probability, as well as frame and magnitude, influenced consumers’ decisions when comparing a conventional and green product. Participants were recruited from Amazon’s Mechanical Turk and completed one of two experiments. In each experiment participants chose between a conventional …
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A Study of the Seismic Performance of Early Multi-Story Steel Frame Structures with Unreinforced Masonry Infill
… masonry infill walls is a common system found in high-rise structures built in the late nineteenth and early twentieth centuries. Recorded performance of this dual system during seismic events shows that the structures are able to resist a high level of lateral loads without collapse, primarily …
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Holocene Periods of Aggradation and Incision, Hanson Creek, Washington
… in the western U.S. have been initiated by high magnitude floods that incised initial knickpoints, subsequently lowering base level.</p>
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Numerical Modeling of Blast-Induced Liquefaction
… characteristics under multiple and consecutive high-magnitude shock environments similar to those produced by large earthquakes. The simulation procedure involved the modeling of a three-dimensional half-space soil region with pre-defined, embedded, and strategically located explosive charges to …
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The Role of SOX2 in Molecular Circadian Clock Regulation and Suprachiasmatic Nucleus Development
… I found that Sox2 in SCN neurons is pivotal for high-magnitude expression of clock genes and neuropeptides that are critical for circadian rhythm regulation. In addition, the absence of Sox2 in SCN neurons leads to severe and widespread changes in behavioral rhythms. My study also shows that …
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A Comparison of Brain Trauma Characteristics from Head Impacts for Lightweight and Heavyweight Fighters in Professional Mixed Martial Arts
… the risk for head injury include the frequency, magnitude and interval of head impacts. The purpose of this study was to compare differences in frequency, frequency distribution of impact magnitudes, and time interval between head impacts per match between Lightweight and Heavyweight fighters in …
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Investigating rates and mechanisms of lateral erosion in a small bedrock river using erosion pins, structure-from-motion photogrammetry, and optically stimulated luminescence dating: Konza Prairie, northeast Kansas
… modern lateral bedrock erosion rates are much higher than originally anticipated owing to several high magnitude flow events during an exceptionally wet year. The OSL ages of fluvial deposits sourced from the strath terrace suggest that Kings Creek experienced periods of aggradation, incision, …
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Nonlinear Finite Element Modelling of Reinforced Concrete Frames Retrofitted with Shape Memory Alloy Buckling Restrained Braces
… provisions are vulnerable when subjected to high-magnitude earthquakes since they lack the capacity to properly dissipate the energy associated with the ground excitation. Therefore, this research aims to investigate the benefits of Buckling-Restrained Braces (BRBs) as a retrofit technique …
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Carbon Cycle Trends Recorded By Organic Carbon Stable Isotopes In Paleocene Strata, Benton County, Mississippi: Implications For Chronostratigraphy Of The Porters Creek And Naheola Formations
… fill of the Mississippi embayment so there is high potential to produce new petm stable isotope datasets. The purpose of this project is to analyze the boundary for evidence of the petm and other cies at the flat rock church paleobotanical site and a nearby core from Benton County, Mississippi. …
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Variation and the evolutionary drivers of diversity in the genus Paranthropus
… variance/covariance (V/CV). Results reveal a high magnitude of variation within and between species across mandibular and cranial regions, especially when including the P. robustus individuals DNH 7 & 8 from Drimolen. Drift cannot be rejected for the bulk of comparisons. Neutrality tests …
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