7,401 research outputs found
Qualitatively Informed Propositions for Teaching Research Methods to Aeronautical Science Students
Recent changes to Embry-Riddle Aeronautical University’s Master of Aeronautical Science program have been implemented with difficulty by the faculty who teach Research Methods, and the learning objectives have not easily translated into concepts quickly grasped by the students. In this qualitative, grounded theory study, I evaluated 126 comments from 196 Aeronautical Science students through an inductive approach to identify themes for improving the administration and execution of the Research Methods course. Positive and negative themes indicate that students seek clear expectations, examples, and feedback to improve understanding of these complex concepts. Four propositions are presented: infuse an inquiry-based learning approach using templates and examples, improve student readiness, present final project options, and sequence the program
Academic Dishonesty in Higher Education: Perceptions and Opinions of Undergraduates
The purpose of this study was to determine if statistically significant differences existed between identified student demographic characteristics (gender and age), academic variables (classification, GPA, and major), and students’ perceptions of academic dishonesty, as measured by the Attitudes and Perceptions of Academic Dishonesty survey.
A pen-and-paper survey was used to gather the data at the 3 participating universities and college (a 4-year public university, a 4-year private university, and a 2-year public community college). There were 22 items on the survey. There were 328 surveys distributed by the investigator to participating classes at the 3 institutions of higher education. All 328 surveys were returned. There were 116 student responses gathered from the 4-year private university, 103 student responses gathered from the 2-year public college, and 109 student responses gathered from a 4-year public university. All of the responses were valid and fit the perquisites for inclusion in the survey. These perquisites were that each student was at least 18 years of age and each student was registered as an undergraduate.
There were 5 dimensions included in the survey (Dimension 1- Use of Technology, Dimension 2- Perceptions of Policy, Dimension 3- Instructor Consequences, Dimension 4- Student Consequences, and Dimension 5- Student Conduct).
For Research Questions 2, 4, and 6 there were no significant differences found among any of the groups for any of the 5 dimensions. In Research Question 1 the 5 dimensions of the survey were compared among the 3 participating institutions (public 4-year university, private 4-year university, and public 2-year college). Dimension 4 (student consequences) was significantly different between the public 4-year university and the private 4-year university, with students at the private 4-year university scoring higher. In Research Question 4 a comparison of traditional aged and nontraditional aged students was made on the 5 dimensions. A significant difference was found between the 2 age groups on Dimension 3 (instructor consequences) and Dimension 5 (student conduct), with nontraditional students scoring higher in both cases. For Research Question 6 a comparison of criminal justice majors was made to other majors. Only Dimension 4 (student consequences) was statistically significant with other majors expressing a desire for more student consequences as a result of participating in academic misconduct
The school music rehearsal facility and gymnasium-auditorium: Design and modification for acoustics and sound isolation
Dyspraxia in a patient with corticobasal degeneration: the role of visual and tactile inputs to action
Objectives-To investigate the roles of visual and tactile information in a dyspraxic patient with corticobasal degeneration (CBD) who showed dramatic facilitation in miming the use of a tool or object when he was given a tool to manipulate; and to study the nature of the praxic and neuropsychological deficits in CBD. Methods-The subject had clinically diagnosed CBD, and exhibited alien limb behaviour and striking ideomotor dyspraxia. General neuropsychological evaluation focused on constructional and visuospatial abilities, calculation, verbal fluency, episodic and semantic memory, plus spelling and writing because impairments in this domain were presenting complaints. Four experiments assessed the roles of visual and tactile information in the facilitation of motor performance by tools. Experiment I evaluated the patient's performance of six limb transitive actions under six conditions: (1) after he described the relevant tool from memory, (2) after he was shown a Line drawing of the tool, (3) after he was shown a real exemplar of the tool, (4) after he watched the experimenter perform the action, (5) while he was holding the tool, and (6) immediately after he had performed the action with the tool but with the tool removed from his grasp. Experiment 2 evaluated the use of the same six tools when the patient had tactile but no visual information (while he was blindfolded). Experiments 3 and 4 assessed performance of actions appropriate to the same six tools when the patient had either neutral or inappropriate tactile feedback-that is, while he was holding a non-tool object or a different tool. Results-Miming of tool use was not facilitated by visual input; moreover, lack of visual information in the blindfolded condition did not reduce performance. The principal positive finding was a dramatic facilitation of the patient's ability to demonstrate object use when he was holding either the appropriate tool or a neutral object. Tools inappropriate to the requested action produced involuntary performance of the stimulus relevant action. Conclusions-Tactile stimulation was paramount in the facilitation of motor performance in tool use by this patient with CBD. This outcome suggests that tactile information should be included in models which hypothesise modality specific inputs to the action production system. Significant impairments in spelling and letter production that have not previously been reported in CBD have also been documented
Predicting service utilization with the child and adolescent functional assessment scale in a sample of youths with serious emotional disturbance served by center for mental health services-funded demonstrations
This study investigated level of restrictiveness of living arrangements and number of days in out-of-family care at six months postintake, based on the Child and Adolescent Functional Assessment Scale (CAFAS), the Child Behavior Checklist (CBCL), gender, age, and level of family income at intake. It was composed of youths who met the criteria for serious emotional disturbance (SED) and were for the most part living in families that are described as socioeconomically disadvantaged. A multinomial logit model was used in the analysis of level of restrictiveness of living arrangements, and an ordinary least squares (OLS) regression model was conducted on number of days in out-of-family care. The CAFAS score at intake was found to be a significant predictor of service utilization between intake and six months and was a more consistent predictor than the CBCL. Results suggest that the CAFAS can be used to match service needs with resource allocation and to monitor performance-based outcome indicators.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45770/1/11414_2005_Article_BF02287803.pd
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The role of serial European windstorm clustering for extreme seasonal losses as determined from multi-centennial simulations of high resolution global climate model data
Extratropical cyclones are the most damaging natural hazard to affect western Europe. Serial clustering occurs when many intense cyclones affect one specific geographic region in a short period of time which can potentially lead to very large seasonal losses. Previous studies have shown that intense cyclones may be more likely to cluster than less intense cyclones. We revisit this topic using a high resolution climate model with the aim to determine how important clustering is for windstorm related losses.
The role of windstorm clustering is investigated using a quantifiable metric (storm severity index, SSI) that is based on near surface meteorological variables (10-metre wind speed) and is a good proxy for losses. The SSI is used to convert a wind footprint into losses for individual windstorms or seasons. 918 years of a present-day ensemble of coupled climate model simulations from the High-Resolution Global Environment Model (HiGEM) are compared to ERA-Interim re-analysis. HiGEM is able to successfully reproduce the wintertime North Atlantic/European circulation, and represent the large-scale circulation associated with the serial clustering of European windstorms. We use two measures to identify any changes in the contribution of clustering to the seasonal windstorm loss as a function of return period.
Above a return period of 3 years, the accumulated seasonal loss from HiGEM is up to 20% larger than the accumulated seasonal loss from a set of random resamples of the HiGEM data. Seasonal losses are increased by 10-20% relative to randomised seasonal losses at a return period of 200 years. The contribution of the single largest event in a season to the accumulated seasonal loss does not change with return period, generally ranging between 25-50%.
Given the realistic dynamical representation of cyclone clustering in HiGEM, and comparable statistics to ERA-Interim, we conclude that our estimation of clustering and its dependence on the return period will be useful for informing the development of risk models for European windstorms, particularly for longer return periods
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The annual cycle of Northern Hemisphere storm-tracks. Part 2: regional detail
In Part 1 of this study, the annual cycle of the Northern Hemisphere storm-tracks was investigated using feature tracking and Eulerian variance based diagnostics applied on both vorticity and meridional wind. Results were presented and discussed for the four seasons at both upper (250hPa) and lower (850hPa) tropospheric levels. Here, using the meridional wind diagnostics, the annual cycles of the North Pacific and North Atlantic storm-tracks are examined in detail. This is done using monthly and 20° longitudinal sector averages. Many sectors have been considered, but the focus is on sectors equally spaced in the two main oceanic storm-tracks situated at their western, central and eastern regions, the western ones being mainly over the upstream continents.
The annual cycles of the upper and lower tropospheric storm-tracks in the central and eastern Pacific, and western and central Atlantic sectors all have rather similar structures. In amplitude, each sector at both levels has a summer minimum and a relatively uniform strength from October to April, despite the strong winter maxima in the westerly jets. However, high intensity storms occur over a much wider latitudinal band in winter. The storm-track in each sector moves poleward from May to August and returns equatorward from October to December, and there is a marked asymmetry between spring and autumn.
There are many differences between the North Pacific and North Atlantic storm-tracks, and some of these seem to have their origin in the behaviour over the upstream East Asian and North American continents, suggesting the importance of seeding from these regions. The East Asian storm-track near 48°N has marked spring and autumn maxima and weak amplitude in winter and summer. The 33°N track is strong only in the first half of the year. In contrast, the eastern North American storm-track is well-organised all year, around the baroclinicity that moves latitudinally with the seasons. The signatures associated with these features are found to gradually decrease downstream in each case. In particular, there is very little latitudinal movement in the storm-track in the Eastern Atlantic
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