887 research outputs found

    Doctor of Philosophy

    Get PDF
    dissertationThe purpose of this study was to implement a weight-related teasing prevention program and evaluate the effectiveness of the program among adolescents. One hundred forty-three students in 7th-grade in health classes at the middle school were asked to participate in the study. The weight-related teasing prevention program was implemented as part of health curriculum at a middle school in Utah. At pretest, 47% of participants admitted that they had experienced bullying in the past as victims. Specifically, verbal bullying (47%) was the most frequently reported form of bullying experienced among participants. Girls were more likely to experience physical bullying than boys. There were statistically significant differences in scores on weight-related teasing effect (M = .30, 95% CI [0.46, 0.56], t (101.497) = 2.344, p = .021), competency teasing (M = 1.27, 95% CI [0.39, 2.18], t (117.546) = 2.784, p = .01) and victimization of competency teasing (M = .67, 95% CI [0.37, 0.97], t (116.916) = 4.471, p = .00) between boys and girls. Interestingly, girls scored higher than boys on weight-related teasing, competency teasing and victimization of competency. On the other hand, male mean scores on body esteem and self-esteem were higher than female mean scores on those variables. Verbal bullying (e.g., teasing) was the most frequently reported form of bullying in this study. Girls' bullying involvement was significantly demonstrated by data. However, it is suggested to educate about bullying among both girls and boys. After the program, the number of students who were bullied was reduced by 7% (From 42% to 35%). The prevalence rate of bullies was also decreased from 18% to 14%. Girls reported higher mean scores on victimizations of weight-related and competency teasing. On the other hand, girls' mean scores on IBSS decreased more than boys' after the intervention program suggesting that they experienced more improvement from the intervention. In conclusion, the intervention program effectively increased participants' body esteem and self-esteem. Although female participants tended to report more victimization from teasing (weight and competency), they showed a stronger positive effect by the end of the intervention program

    Role of Search, Human Capital and Learning in Occupational Mobility and Immigrant Assimilation

    Get PDF
    This thesis contains three studies of job and occupational mobility, and their implications for earnings. The second chapter of the thesis develops and estimates a model of job and occupational search to examine how and how much learning influences young workers\u27 job search and transition patterns. The model incorporates uncertainty regarding the accumulation processes of workers\u27 different skills, and features directed search whereby workers choose search effort intensities for different occupations. The model is estimated using U.S. data, with individuals\u27 occupational affiliations grouped into skilled white-collar, skilled blue-collar, and non-skilled occupations. The estimates show large differences in search frictions, skill acquisition rates, and learning opportunities across occupations. Simulation exercises show that learning can have a sizeable effect on young workers\u27 job search. However, because of job search frictions, changes in job search effort due to learning do not result in a comparable effect in occupational transition outcomes. Search frictions have a particularly large consequence for those directing their search effort to the white-collar occupation. Building on the search and matching model of Albrecht and Vroman (2002), the third chapter develops a dynamic model of employment transitions among full-time work, part-time work and nonemployment, and offers an explanation based on human capital depreciation for British women\u27s life-cycle employment transition patterns. Numerical examples of the model indicate that the model can capture their stylized life-cycle transition patterns through their endogenous decision making under reasonable parameter values. The fourth chapter develops and estimates an equilibrium search model of immigrants operating in the same labour market as natives, where newly arrived immigrants have lower job offer arrival rates than natives but can acquire the same arrival rates according to a stochastic process. Using Canadian panel data, substantial differences in job offer arrival and destruction rates are found between natives and immigrants that are able to account for three quarters of the observed earnings gap. The estimates imply that immigrants take, on average, 13 years to acquire the native search parameters. Counterfactual exercises show that the vast majority of earnings growth immigrants experience after migration is due to the job search assimilation process

    The Impedance Matrix of the Induction Machine Having a General Stator-winding Axis and its Torque Formula

    Get PDF
    Such a stator-winding as every phase of it is not always placed apart symmetrically in space and its effective turns are not necessarily equal to others is named here as 'a general stator-winding axis'. In this paper primarily the impeadance matrix (Z)and torque formula of any phase induction machine having a general asymmetrical stator-winding axis are derived by solving the differential equations. To calculate the various characteristics of the above machine from these results is well-known, so I have omitted its description here. Therefore I believe this paper gives an analytical method on the above machine. Secondly (Z) is reconsidered by two revolutions theory of the magnetic field and the theory of equivalent circuit of a single-phase induction motor so that the physical meanings of the elements of (Z) may be understood well. Thirdly it is described how the three-phase symmetrical coordinate method be extended so as to be adaptable to three-phase asymmetrical winding axis.Article信州大学工学部紀要 7: 1-14 (1957)departmental bulletin pape

    General Solution of Trusses : A Solution by Matrix Method

    Get PDF
    Article信州大学工学部紀要 27: 9-36 (1969)departmental bulletin pape

    Oxygen-Evolving Extracts from a Thermophilic Cyanobacterium Synechococcus sp.

    Get PDF
    Spheroplast membranes of a thermophilic cyanobacterium Synechococcus sp. have been treated with the detergent lauryldim ethylam ine oxide (LDAO). The resulting extracts show (1) light-induced O2 evolution with artificial electron acceptors, (2) four-fold enhancement of the O2 evolution relative to chlorophyll, (3) parallel increase of both the molar ratios of PS 2/C hl and cyt b559/Chl in the extract, (4) dissociation of the auxiliary pigment phycocyanin upon treatment with LDAO, but still tight association of allophycocyanin to the photosystem 2 preparation

    How Much Do They Make? New Evidence on the Early Career Earnings of Canadian Trade Certificate

    Get PDF
    This paper provides new evidence on the early career earnings of Canadians who obtain a trade certificate. The analysis uses comprehensive national level administrative data on individuals who received a trade certificate between 2008 and 2016 linked to their tax information at Statistics Canada in order to link earnings to their individual characteristics and details related to their certification. In this paper we track their yearly employment earnings from their first full year following certification onward, to a maximum of 9 years. Overall, journeypersons in nationally accredited Red Seal trades earn more than those in non-Red Seal trades, those in Mechanical and Electrical trades earn the most, and journeywomen earn only 47% of what journeymen do overall, largely driven by their being concentrated in a relatively narrow set of low-paying trades

    Jet-Stream Airsail: Study of the Shape and the Behavior of the Connecting Cable

    Get PDF
    A jet-stream airsail concept takes advantage of aerology in order to fly without propulsion. Weather phenomena, especially jet streams, are relatively permanent high winds blowing from west to east, located at average altitudes and latitudes in both hemispheres. To continuously extract energy from the jet-stream, the system is composed of a propelled plane and a wind turbine interconnected by a cable. This work presents the aerodynamic characteristics and the behavior of the cable that links the two subsystems and transmits energy from the turbine to the aircraft. Two ways of solving this problem are explored: numerically and analytically. After obtaining the optimal shape of the cross-section of the cable, its behavior is analyzed as a 2D problem solved numerically and analytically. Finally, a 3D extension could be considered by adding lateral forces. The results of this work can be further used in the design process of the overall system: aircraft-turbine

    A New Extraction System for Extremely Low Level 14C in Meteorites.

    Get PDF
    第3回極域科学シンポジウム/第35回南極隕石シンポジウム 11月29日(木) 国立国語研究所 2階講

    2013-6 Immigrant Job Search Assimilation in Canada

    Get PDF
    corecore