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Scholar Commons 08/06/2020 02:55
Technology-enhanced learning continues to provide opportunities for increased interventions in educational programing. For teacher education programs, novelty pales in comparison to providing meaningful instruction and enduring outcomes. The use of avatars has provided integration of research evidence that increases intended behaviors; however, research is lacking on teacher self-efficacy change via an avatar experience. The purpose of this study is to examine the relationship between teacher self-efficacy and avatar use in a teacher education program. A relational study using both parametric and non-parametric designs for four different samples indicated a significant relationship between avatar intervention and teacher self-efficacy in cl.
Scholar Commons 08/05/2020 09:12
This project is an analysis of the relationship between suicide rates and mental health provider ratio within the United States. Data from 2018 are collected for each state regarding its suicide rate, mental health provider ratio, and percent of population unable to receive treatment for mental health problems. An initial analysis is made using suicide rates and mental health provider ratio, with no correlation being found. A second analysis is conducted, using multiple linear regression with the percent of individuals within each state who were unable to access treatment for their mental health problems being the confounding variable. Controlling for the percent of individuals within each state who were unable to access treatment for their.
Scholar Commons 08/03/2020 17:08
The center of mass of a given system is referred to as a position that is the average of all of its components. I am given two cases in which I need to find the center of mass for the problem of flipping over an incline. To solve the problem given, I utilize many equations that are derived to find the center of mass of both cases and then test each system when it is encountered with three different inclines increasing by fifteen degrees increments. The tests prove that the probability that a system will flip on an incline is due to many factors, the main of them being the height of the system, the area of support, as well as the weight of the system. This method of solving is not the most time-efficient one to find the center of mass and fl.
Scholar Commons 08/03/2020 15:53
Based on the design of non-portable ventilators, this project examines and analyzes the primary individual component used within a motorized AMBU bag ventilator - the AMBU bag. Calculations are conducted to assess the minimum volume for an AMBU bag to provide sufficient oxygen for average total lung capacity. It allows to determine the feasibility and effectiveness of an electrical, portable AMBU bag ventilator under the reduced size requirements. A calculus-based formula, known as the Disk Method, is utilized for these calculations. It is shown that the Disk method can be reversed to find a shape of an AMBU bag given a predetermined volume and desired dimensions. Thus an affordable, motorized, portable AMBU bag ventilator with full functio.
Scholar Commons 08/03/2020 14:50
The research conducted focuses on 3D printing and its application in medical equipment. A recent breakthrough in modern material science was made with the creation of hyperelastic bone. This exploration looks at how hyperelastic bone is created, the cost comparison to older tools, and the possible design for hyperelastic bone. Detailed calculations and descriptions are also included to explain the reasoning behind the work conducted.
Scholar Commons 08/03/2020 14:50
Rocks have the ability to preserve magnetic information used in determining past geographic formations. The purpose of this report is to determine the past location of a site from a given data set’s magnetic information and the calculations found through their application to paleomagnetism. Magnetic information includes the rock sample’s location and concentration of trace magnetic particles which were used to find declination and inclination on site. The sample’s paleolatitude and paleolongitude are calculated using trigonometric equations that are derived using calculus. After a statistical analysis, these results are compared to the present day’s magnetic poles to determine the past location of the site. This location, along with the mag.
Scholar Commons 07/31/2020 10:19
In the state of Florida, work-zone related crashes and their resulting injury severities have been increasing recently, particularly over the 2015 to 2017 time period. In the current study, we seek to provide insights into the factors that have been influencing this trend. Using work zone data from the 2012 to 2017 time period, resulting driver-injury severities in single-vehicle work zone crashes were studied using random parameters logit models that allow for possible heterogeneity in the means and variances of parameter estimates. The available data included a wide variety of factors known to influence driver injury severity including data related to the crash characteristics, vehicle characteristics, roadway attributes, prevailing traff.
Scholar Commons 07/26/2020 00:20
Valuing constitutes an important aspect of mathematics pedagogy and hence student learning outcomes. This study surveyed 416 students from Cape Coast, Ghana to explore what senior high school students in this country in West Africa valued in their study of mathematics. The data collected were analyzed using principal component analysis. The results suggest that Ghanaian senior high school students found connections, understanding, fluency, learning technologies, feedback, instructional materials, open-endedness and problem-solving important in their mathematics learning. Implications of the findings for curriculum delivery in mathematics and future research opportunities are also discussed.
Scholar Commons 07/24/2020 16:01
Public transport customer amenities cover a range of measures that can enhance the quality of the passenger experience, such as information provision and station quality. While much research has determined the value that users place on amenities, there is little understanding of current practice in the use of customer amenity valuations in project appraisal. A survey of transit agencies in 11 cities (Melbourne, Sydney, Brisbane, Perth, Auckland, London, Paris, Toronto, Vienna, Oslo and Singapore) was undertaken showing that Australasian cities, albeit Melbourne, generally have widespread inclusion of customer amenities as part of advanced appraisals for all relevant types of public transport projects. Australasian practice tends to include
Scholar Commons 07/23/2020 14:35
The habitat and biota most affected by ultra-deep oil spills in the Gulf of Mexico (GoM) will necessarily be in the deep-pelagic domain. This domain represents ~91% of the GoM’s volume and almost certainly contains the majority of its metazoan inhabitants. Ultra-deep oil spills may or may not reach the surface or the seafloor but will occur entirely within the deepwater column domain at some point and likely for the longest duration. Recent research has shown the deep-pelagic GoM to be extremely rich in biodiversity, both taxonomic and functional. Indeed, the GoM is one of the four “hyperdiverse” midwater ecosystems in the World Ocean. This biodiversity is functionally important. For example, well over half (58%) of all fish species known t.
Scholar Commons 07/23/2020 00:30
Equipping new teachers in today’s society is a noble and challenging task. Of late, many additional licensing standards for teachers create additional responsibilities for universities that provide pedagogy, knowledge, and content for teacher candidates. Identification of best practices that support teacher candidates on the Educative Teacher Performance Assessment (edTPA) is of interest to many teacher education programs. The purpose of this research was to analyze whether incorporating a mock edTPA had beneficial results on the passage of the edTPA. This study spanned fourteen ten-week quarters and included 688 teacher candidates who were preparing to become certificated teachers at a university in Washington State. The questions that wer.
Scholar Commons 07/22/2020 16:52
As deep-sea oil exploitation increases worldwide, the probability of another Deepwater Horizon (DWH) blowout also increases. The DWH disaster directly impacted the coastal communities of the Gulf of Mexico (GoM) with 11 deaths and the release of 172.2 million gallons of gas-saturated oil, covering over 1000 miles of coastline and contaminating an estimated 300,000 million cubic meters of GoM water. In the aftermath of the DWH blowout, the question of what a similar event would look like outside the GoM is of fundamental importance. Anticipating the extent and potential environmental impact of major spills in other locations becomes important for effective oil preparedness and response, including coordination of emergency response between ne.
Scholar Commons 07/22/2020 16:52
The Deepwater Horizon (DWH) accident occurred on 20 April 2010 in the Northern Gulf of Mexico and resulted in a deep-sea plume of petroleum hydrocarbons and a marine oiled snow sedimentation and flocculent accumulation (MOSSFA) event. It is hypothesized that recovery will occur when the contaminated sediment is buried below the biologically active zone of 10 cm. Recovery rate can be inferred from the similar Ixtoc-1 blowout and sub-surface oil release that occurred in the Bay of Campeche, Mexico in 1979 – 1980. In 2015, sediment chemistry effects from the Ixtoc-1 were found at 2.4– 2.8 cm sediment depth at stations within 81 and 273 km away. Trends of total polycyclic aromatic hydrocarbon concentration, macrofauna family-level diversity, an.
Scholar Commons 07/22/2020 16:52
One of the available oil spill response options is to enhance the natural dispersion process by the addition of dispersants known as chemical dispersion. An informed decision for such response requires insight about the added effects of treatment with dispersants on the oil slick fate. To provide such insight, a mathematical model for oil slick elongation as a result of dispersion was developed including the effects of oil viscosity, dispersed oil droplet sizes, and oil layer thickness. This chapter briefly revisits this oil slick elongation model to explain the consequences of different key parameters on dispersion, vertical droplet size distribution, formation of a comet-like tail and oil slick (dis)appearance, as well as the implications.
Scholar Commons 07/22/2020 16:52
In the wake of the Deepwater Horizon disaster, much has been learned about the biological, ecological, physical, and chemical conditions of the Gulf of Mexico. In parallel, the research community has also gained insight about the social and organizational structures and processes necessary for oil spill response and subsequent marine and coastal restoration. However, even with these lessons from both the Deepwater Horizon and previous spills, including 1989’s Exxon Valdez and the Ixtoc 1 in 1979, our understanding of how to avoid future crises has not advanced at the same pace as offshore oil and gas development. We argue that this progress deficit indicates a continued devaluing of marine and coastal resources. We believe that we must, ins.
Scholar Commons 07/22/2020 16:51
The 2010 Deepwater Horizon blowout off the coast of Louisiana caused the largest marine oil spill on record. Samples were collected 2-3 months after the Macondo well was capped to assess damage to macrofauna and meiofauna communities. An earlier analysis of 58 stations demonstrated severe and moderate damage to an area of 148 km2. An additional 58 archived stations have been analyzed to enhance the resolution of that assessment and determine if impacts occurred further afield. Impacts included high levels of total petroleum hydrocarbons (TPH) and polycyclic aromatic hydrocarbons (PAH) in the sediment, low diversity, low evenness, and low taxonomic richness of the infauna communities. High nematode to copepod ratios corroborated the severe d.
Scholar Commons 07/22/2020 16:51
Direct exposure to petroleum compounds was widely reported for a variety of taxa following the DWH. Evidence of exposure ranged from oiling of skin, shells, or feathers, depending on the taxa, to observation of ingested oil in small translucent, invertebrates, to biomarkers of petroleum compounds within an organism’s tissues, such as PAHs in the hepatopancreas of invertebrates or the liver of fishes, or metabolic products of PAH catabolism in the bile of various vertebrate taxa. Development of natural biogeochemical tracers to examine indirect effects, especially over long (months to years) time scales, can be much more problematic. In this chapter, we describe the utility of employing stable isotopes and radioisotopes to 1) examine whether.

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