• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1665
  • 603
  • 271
  • 216
  • 64
  • 59
  • 56
  • 49
  • 34
  • 31
  • 20
  • 13
  • 11
  • 9
  • 7
  • Tagged with
  • 3678
  • 401
  • 270
  • 265
  • 248
  • 221
  • 205
  • 199
  • 196
  • 190
  • 185
  • 171
  • 168
  • 167
  • 166
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
191

Quantification of Vehicle-induced Turbulence on Roadways Using Computational Fluid Dynamics Simulation

Kim, Yesul 12 December 2011 (has links)
Turbulence is a significant factor in near-road air quality, as it affects the initial dilution, dispersion, and the ultimate fate of pollutants. This study used computational fluid dynamics simulations to model the turbulent kinetic energy (TKE) on roadways, focusing on vehicle-induced turbulence. TKE was shown to decay with different power-law exponents depending on vehicle types; vehicle speeds and winds affect TKE; and thermal impacts are negligible. It was found that TKE is superimposed for vehicles in series; TKE does not dissipate far laterally, and the side-by-side interactions are not significant regardless of the directions. Thus, TKE for different traffic compositions may be expressed as a sum of the contribution from each type of vehicle. Insights gained in this study may enable the quantification of TKE for various traffic scenarios based on TKE values of single vehicle of different types, and simplify the TKE estimations in regional air quality models.
192

Alcohol related vomiting in a New Zealand University sample: frequency, gender differences, and correlates

Blackmore, Natalie Patricia Irene January 2009 (has links)
The purpose of the study was to investigate the relationship, frequency, gender differences, situations and motivations of self-induced vomiting after drinking alcohol with disordered eating, alcohol use and psychopathology; with a nonclinical university sample of males and females in New Zealand. Participants were 102 male and 159 female university students ranging in age from 17-35 years who completed a survey designed for this study along with tests that measure eating disordered attitudes and behaviours, bulimia symptoms, depression and alcohol use. Overall, 90.04% of the sample reported that they drink alcohol and, of that subset, 57.58% of males and 42.26% of females reported having self-induced vomiting after drinking alcohol. The behaviour was related to eating pathology, depression and alcohol use with gender differences apparent. Specifically, on measures of disordered eating, females who self-induce vomiting after drinking alcohol scored higher than females who do not report the behaviour (no difference apparent for males), and overall, females scored higher than males. In terms of hazardous alcohol use, males who self-induce vomiting after drinking alcohol scored higher than males who do not with the same true for females, and overall males scored higher than females. In terms of drinking at the dependency level, individuals who reported self-induced vomiting after drinking alcohol drink at a more harmful level than those who do not (both males and females) and more males than females reported hazardous alcohol usage rates. When examining depressed symptoms, females who selfinduce vomiting after drinking alcohol reported more depressed symptoms than females who do not, with males who reported the behaviour endorsing less depressed symptoms than males who do not. Overall, females indicated more depressed symptoms than males. Persons who engaged in the behaviour were more likely to endorse it as being acceptable, with this trend being stronger for males. Females who self-induce vomiting after drinking were more likely to endorse symptoms of anorexia, bulimia and depression, whereas males who reported the behaviour were more likely to indicate harmful drinking levels, and perform the behaviour to carry on drinking. Thus, for males, self-induced vomiting after drinking alcohol was related to substance abuse whereas, for females, the behaviour may be more related to disordered eating.
193

Effects of ascorbic acid supplementation on the severity of exercise-induced asthma

Tecklenburg, Sandra. January 2005 (has links)
Thesis (M.S.)--Indiana University, 2005. / Includes bibliographical references. Also available online (PDF file) by a subscription to the set or by purchasing the individual file.
194

Effects of ascorbic acid supplementation on the severity of exercise-induced asthma

Tecklenburg, Sandra. January 2005 (has links)
Thesis (M.S.)--Indiana University, 2005. / Includes bibliographical references.
195

Biological and molecular variation among isolates of pea seed borne mosaic virus /

Torok, Valeria Anna. January 2001 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Applied and Molecular Ecology, 2001. / Corrigendum inserted at the back. Includes bibliographical references (leaves 133-158).
196

The association between air pollution and lung cancer in the North West of Adelaide: a case control study and air quality monitoring /

Whitrow, Melissa Jayne. January 2004 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, Dept. of Medicine and Dept. of Public Health, 2004. / "July 2004" Includes bibliographical references (leaves 334-352).
197

Occupational hazards in veterinary practice and possible effects on reproductive outcomes in female veterinarians /

Shirangi, Adeleh. January 2006 (has links)
Thesis (Ph.D.)--University of Western Australia, 2007.
198

A description of high school band directors' hearing functions and exposure to sound pressure levels

Pisano, Joseph M. January 2007 (has links)
Thesis (Ph.D.)--Kent State University, 2007. / Title from PDF t.p. (viewed Mar. 31, 2008). Advisor: Linda B. Walker. Keywords: music, hearing, band directors, teachers, audiology, spl, musicians. Includes survery instrument. Includes bibliographical references (p. 171-182).
199

Induced abortion and risk of breast cancer /

Tang, Mei-Tzu Chen. January 1998 (has links)
Thesis (Ph. D.)--University of Washington, 1998. / Vita. Includes bibliographical references (leaves [84]-91).
200

Sauerstoffversorgung und Säure-Basenhaushalt in tiefer Hypothermie /

Lundsgaard-Hansen, Per. January 1966 (has links)
Zugl.: Habil'schr. Bern.

Page generated in 0.0364 seconds