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 31 for “"Start times"”.
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In Desperate Need of Sleep: Teenagers and School Start Times
<p>School start times have the potential to be damaging to students academically. Several studies have linked sleep to the transfer of knowledge into long term memory, while others show how the lack of sleep is disruptive to learning. If school start times truly have an impact on the functionality …
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The Relationship of Early Class Start Times on Sleepiness and Driving Behaviors in an Emerging Adult Population
… motor vehicle fatalities. Early school start times limit the amount of sleep teenage high school students acquire during the week and have been related to increased crash risk. The current study extends this finding to teenage and emerging adult college students. The author examined the …
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DETERMINATION OF STANDARD AND FIELD METABOLIC RATES IN TWO GREAT LAKES INVADING FISH SPECIES: ROUND GOBY (NEOGOBIUS MELANOSTOMUS) AND TUBENOSE GOBY (PROTERORHINUS SEMILUNARIS)
… I measured relationships between dawn chorus start times and moon brightness, cloud cover, precipitation, ambient temperature, and artificial light exposure in a community of north temperate birds. I found that birds begin their dawn choruses significantly earlier with increasing moon …
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Degrees of motor program control
… that the standard deviations of movement times increases as movement duration increased. However, at longer movement durations, the presence of a visual feedback display decreased the standard deviations of movement times. In Experiment III, the rate of movement was manipulated by varying …
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Essays on the economics of education
… essay are given below: The Effect of Daily Start Times on Academic Performance Local school districts often stagger daily start times for their schools in order to reduce busing costs. This paper uses data on all middle school students in Wake County, NC from 1999-2006 to identify the causal …
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Optimizing School Operations
… we design an algorithm to estimate travel times in a network given travel times (but not paths) observed between many pairs of locations. We also focus on challenges that intersect with and arise from the peculiarities of school transportation. School districts often stagger start times …
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Scheduling Task With State -Dependent Deadlines
… Such a job is constrained to execute from start to completion in one of its feasible intervals. The problem of meeting the timing constraint of such jobs is divided into three problems: feasible interval determination, feasible interval selection, and job scheduling. When the deadline of …
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The role of chronotype in the participation and performance of South African and Dutch marathon runners
… It was proposed that the early morning start-times of these endurance events might select people with a preference for mornings, since morning-types may cope better with rising early and being physically active in the early morning. Alternatively, the habitual early waking for training …
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All-Sky Search for Very-High-Energy Emission from Primordial Black Holes and Gamma-Ray Bursts with the HAWC Observatory
… change their brightness over relatively short timescales. The search for and study of such objects, especially in the TeV energy regime, has the possibility to shed light not only on the physics at play within the enigmatic, chaotic environments that produce such emission, but also to answer …
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Automatic 'Timed-Up and Go' (TUG) test segmentation
… the segmented phases ( 83.4 % accurate ) and the start times of the segmented phases ( 83.6 % accurate). Lastly, I found a 0.3 cm difference for jitteriness and an 8.5 mm/s difference for speed between healthy elderly subjects and healthy young subjects when comparing the features extracted from …
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Supporting Marin County Youth Suffering from Anxiety and Depression
… Kelley, & Evans (2017) implemented a 10:00 a.m. start time at an urban school in England. By delaying school start times, Kelley et al., found that absences related to illness were reduced by 50 percent compared to national rates. In general, school systems in the United States are not currently …
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Better sleep for teens in Reykjavík : effects of delaying school start on adolescent sleep
… Multiple studies have shown that delaying school start times may increase sleep duration and well-being for adolescent students. Other studies have discovered that educational programs may also increase sleep duration for teens. The aim of this study was to compare sleep and well-being variables …
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FPGA Implementation of a Pseudo-Random Aggregate Spectrum Generator for RF Hardware Test and Evaluation
… such as center frequencies, bandwidths, start times, and durations, as well as receiver and channel effects such as additive white Gaussian noise (AWGN). To test the accuracy of the developed spectrum generation framework, the randomization properties of the framework are analyzed to …
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Temporally Correct Algorithms for Transaction Concurrency Control in Distributed Databases
… the applications and databases) real-time timestamps to identify and order events and transactions. The use of optimistic approaches to transaction concurrency control can be undesirable in such situations, as they allow incorrect results for database read operations. Although the …
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Improving traffic signal performance using high-resolution data
… concept of conditional distribution of the green start times for the coordinated phase. To handle the uncertainty of intersection queue length, we adopt a scenario-based approach that generates optimal offsets using a series of traffic demand scenarios as the input to the optimization model. Both …
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Minimisation of Energy Consumption Variance in Manufacturing through Production Schedule Manipulation
… a Genetic Algorithm is used to optimise the start times of manufacturing jobs such that the variance in production line energy consumption is minimised, while ensuring that typical hard and soft schedule constraints are maintained. Prediction accuracy is assured through the use of a novel …
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Association between venoarterial extracorporeal membrane oxygenation start time and patient outcomes
… oxygenation (ECMO) is a complex tool used in times of cardio and pulmonary failures. It began as a tool used in neonates and gradually evolved to adult use in 2003 and increased in popularity during the time of the H1N1 influenza. As this procedure is risky, it is important to assure all …
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Optimization Models and Algorithms for Spatial Scheduling
… and the job locations, orientations, and start times must be simultaneously determined. As a result, spatial scheduling problems are a particularly difficult class of scheduling problems. These problems are commonly encountered in diverse industries including shipbuilding, aircraft …
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Approximate Algorithms for the Combined arrival-Departure Aircraft Sequencing and Reactive Scheduling Problems on Multiple Runways
… on each runway, and their departing or landing times. The dissertation examines the ASP over multiple runways, under mixed mode operations with the objective of minimizing the total weighted tardiness of aircraft landings and departures simultaneously. To prevent the dangers associated with …
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Scheduling for Reduced Tail Task Latencies in Highly Utilised Datacenters
… scheduling designs impose 3x larger wait times on tail tasks, that is, tasks that finish the last among tasks of jobs. This leads to large tail task completion times and consequently, elevated job completion times. In this dissertation, we propose a new decentralised scheduling model, …
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