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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 438 for “"Observational study"”.
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An observational study of freeway lane-changing behaviour
… in the past. As will be shown later in this study, lane-changing is a very important component in highway traffic flow. In this study, a mathematical model to describe the lane-changing behaviour is suggested based on the lane-changing hypothesis that whenever there is a lane-changing …
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An Observational Study of Teacher Decisions in a Primary Classroom
Made available in DSpace on 2014-12-12T19:55:26Z (GMT). No. of bitstreams: 1 7820960.pdf: 8645987 bytes, checksum: 0164c4ba785af6ecf1feefb5945b32f8 (MD5) Previous issue date: 1978
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Observational study of the monsoonal dynamics and eddy shedding phenomena
We analyze atmospheric data in order to study the upper tropospheric dynamics in the area of the Asian summer monsoon. We look at summers of four years from 1987 to 1990. The divergent upper tropospheric circulation of the monsoon often adopts the form of a unified large-scale vortex. However, when …
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Beyond the solar surface: an observational study of solar coronal loops
This thesis presents an observational analysis of structures in the solar corona. The plasmafl in the corona is low (<I), therefore, the emitting material is intimately linked to the magnetic fleldlines. The initial aim of this work, outlined in Chapter 3, is to take advantage of this relationship …
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AN OBSERVATIONAL STUDY OF LOW-MASS STAR FORMATION IN NGC 2264
… variability, or anomalously blue colors. To study the age spread in NGC 2264, a theoretical H-R diagram is constructed. Infrared photometry of 33 candidate members permits an evaluation of the bolometric luminosities of these stars; the unreddened (V - R) and (V - I) colors yield effective …
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Observational study of the role of magnetic fields in star formation
… physical results that could be compared to observational data. These theories interpret the models in terms of a physical parameter: the ratio of the mass to the magnetic flux (M/$\Phi$). Performing measurements of the magnetic field, to determine the magnetic flux ($\Phi$), is complicated. …
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An observational study of astrophysical black hole candidatesand gamma ray bursts
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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Matched sampling of methods to reduce bias in an observational study
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Intra-seasonal convection dynamics over Southwest and Northeast Tanzania : an observational study
Intraseasonal convection oscillation over the northeastern and southwestern Tanzania during MAM and DJF seasons respectively are examined using December, 1979 to May, 1994 pentad (5-day mean) Outgoing Longwave Radiation (OLR) as an indicator of convective cloud distribution. Area-averaged OLR …
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A numerical and observational study of the genesis of concentric eyewall hurricanes
… is a combination of numerical modeling and observational case studies. We have made use of two numerical models, namely a simple two-layer model and a two-dimensional cloud resolving non-hydrostatic model. The latter is called the full physics model for short. Owing to the lack of direct …
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Intergenerational activities: an observational study of the experiences of children and adults
The purpose of this study was to begin to understand what exactly occurs when young children and adult day care participants interact together during planned intergenerational activities. Data were recorded through field notes, video tapes, activity plans and evaluations and through the assessment …
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Observational study of children with autism who have participated in hyperbaric oxgen therapy
… improves. </p> <p>This research was a study of five children with school diagnosis of autism that were doing hyperbaric oxygen therapy. Both the parents and the child's teacher filled out a pre and post evaluation of the child using ATEC evaluation tool. The evaluation tool assessed …
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Surface layer processes and nocturnal low-level jet development--an observational study during PECAN
… evolved through the night. The objective of this study was to use this dataset to identify the impact of LLJ presence on surface layer properties, such as thermal stability, dynamic stability, surface fluxes, and turbulence. Additionally, this study investigated pre-LLJ daytime surface layer …
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Growth mindset-supportive teacher feedback in early elementary math classes: A naturalistic, observational study
… have identified the need for naturalistic, observational studies of teacher and student interaction in the classroom context, however, to date, this has been done mainly on students in middle school. To address these gaps, the current study used an observational tool aimed to describe the …
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An observational study of student osteopaths' measurement of arterial blood pressure by sphygmomanometry and auscultation
The aim of this study was to observe the rate of compliance that postgraduate (4th and 5th year) osteopathy students demonstrate when applying their undergraduate blood pressure (BP) measurement training in a clinical situation. Thirty-seven volunteer postgraduate participants were watched …
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Evaluating Blood Pressure Methods in Non-traumatic Intracerebral Hemorrhage: A Two-site Prospective Observational Study
… Arterial lines (A-lines) in patients with ICH. Study Aims. To understand the agreement between SBP, DBP, and MAP measured by manual sphygmomanometry performed by trained healthcare providers with 1) NIBP, and, if applicable, 2) A-line measurements in patients with acute non-traumatic ICH. …
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