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  • 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.
121

The relations between sleeping arrangements, and cultural values and beliefs in first generation Chinese immigrants in Canada

Song, Jianhui 11 1900 (has links)
The purpose of this study was to examine the relations between cultural values, social norms, and beliefs related to co-sleeping with the sleeping arrangements of first generation Chinese immigrants in Canada. The participants were 162 first generation Chinese immigrants from four Canadian cities who had children ranging from 2 months to 71 months (M = 37.9, SD = 18.06). Participants completed a questionnaire measuring their cultural values and beliefs, value of parenting roles and family, value of romantic relationships, and beliefs of sleeping arrangements. Parents indicated their sleeping arrangements (i.e. where child slept and with whom the child slept). Participants were also asked to draw a picture of their bedroom(s) which indicated the location of the childs and/or parents bed, and the distance between the two beds. Results indicated that 77% Chinese parents in this study co-slept with their pre-school aged child, whereas only 23% parents let their child sleep in their own bedroom. Among the co-sleepers, half of the children slept in their parents bed, and half of them slept in their own bed, which was either attached to the parents bed or separated from the parents bed. The mean distance between the parents bed and the childs bed was 21.15cm (SD = 42.74) for co-sleeping families, and 502.8 cm (SD = 188.69) for solitary sleeping families. Using stepwise regression analysis, the relations between demographic factor, space availability, values, norms, and beliefs, on the one hand, and sleeping arrangements, on the other, were examined. Personal beliefs about sleeping arrangements, including cultural beliefs of independence and interdependence, beliefs of marital quality, and beliefs of solitary sleeping, influence sleeping arrangements. Parents length of residency in Canada, childs age, and bedroom numbers also influence sleeping arrangements. The findings have important implications for researchers and health professionals in terms of sleeping arrangements in the larger socio-cultural context.
122

Co-branding ur ett konsumentperspektiv : En fallstudie av företaget Sony Ericsson

Thomas, Elias, Wahlén, Jenny January 2006 (has links)
Syftet med uppsatsen har varit att undersöka hur konsumenterna uppfattar varumärkesutvidgningen. Studien har haft fokus på ett fallföretag, Sony Ericsson samt de varumärken (Walkman och Cyber-shot från Sony) som de använder på deras produkter. Vi har samlat in data med konsumenters uppfattningar om co-branding och deras brukande av produkter ur den kategori där de co-brandade varumärkena finns. Vidare har vi sökt efter förklaringar till huruvida det finns någon koppling mellan användandet av Mp3-spelare och digitalkamera i förhållande till betydelsen av varumärkena. Undersökningen har varit helt webbaserad och samlat in över 200 svar varvid 197 har använts i sammanställningen av enkätsvaren. Vi har använt oss av rådande teorier inom varumärken, varumärkeshantering, varumärkesvärdering och varumärkesfusioner. De teorier som ligger till grund för uppsatsen är Brand Management, Brand Equity, och Co-branding. Detta har tillåtit oss att gå från generella beskrivningar om varumärken fram till hantering och värdering av varumärken för att slutligen nå kärnan av uppsatsens tema det vill säga co-branding. Resultatet av undersökningen blev att det råder hög kännedom om Mp3-varumärket Walkman med en kännedom på nio av tio tillfrågade, medan drygt fyra av tio kände till digitalkamera- varumärket Cyber-shot. Av de tillfrågade som dessutom använder sig av någon av de respektive produkterna är kännedomen om förknippat varumärke ännu högre. Betydelsen av varumärkena har trots olika kännedom varit ungefär lika stora och legat under det godkända värdet på tre i den femgradiga skalan. Män har prioriterat och värderat Mp3-spelarfunktionen och Walkman högre än motsvarigheten till digitalkamera, medan kvinnornas prioritet har varit hos kamerafunktionen och Cyber-shot varumärket. Vi har kunnat dra slutsatserna att två starka varumärken som kombineras inte bidrar med lika stor synergi som ett lågvärdesvarumärke får när det kombineras med ett högvärdesvarumärke. Då varumärkena Walkman och Cyber-shot visat sig vara starka som enskilda varumärken samtidigt som Sony Ericsson är ett företag med högt anseende innebär varumärkesutvidgningen för Sony Ericssons mobiltelefoner inga ökade fördelar för Sony Ericsson. Hos dem som använder Mp3-spelare och digitalkameror har vi kommit fram till att det finns en högre kännedom om varumärkena samt att varumärkena är av större vikt när de co-brandats. Detta tycks bero på att ökad kännedom ger mer kunskap om alternativen på marknaden och skapar därför medvetenhet och preferenser hos konsumenterna. Slutligen har vi i denna undersökning upptäckt ett samband där de konsumenter som prioriterat funktionerna högt även har haft en hög prioritering av förknippat varumärke.
123

The Swedish Government as Owner of Transport Infrastructure : Policy formation from the 1930s to the 2010s

Hasselgren, Björn January 2012 (has links)
Governments have a choice whether to intervene in the transport infrastructure sector to manage, finance and own the assets of the sector, or to rely on markets and private sector actors for the provision of these systems. In this article the development of rail and road infrastructure in Sweden and the choice between government and market provision of these systems are analyzed from a co-evolutionary perspective. Technology, economics, and politics have influenced the government’s policy formation and decisions on organizational models over time, such as the nationalization of roads and railroads in the 1930s-40s. The aim for improved economic efficiency and reduction of cost differences between different parts of the country rather than political ideology explain why roads and railroads were nationalized. Through adjusting its ownership role and policy content the government has, over time, accommodated to the different influences from technology, economics and politics. The government’s ownership of transport infrastructure has not been challenged since the nationalization. This could be seen as a sign of a successful gradual policy adjustment from the government’s side, thereby avoiding private sector solutions. / <p>QC 20130614</p>
124

Anaerobic Co-digestion of Organic Fraction of Municipal Solid Waste with Municipal Sludge with or without Microwave Pre-treatment

Ara, Efath 16 July 2012 (has links)
Anaerobic co-digestion of organic fraction of municipal solid waste (OFMSW), with thickened waste activated sludge (TWAS) and primary sludge (PS) has the potential to enhance (biodegradation) of solid waste, increase longevity of existing landfills and lead to more sustainable development by improving waste to energy production. This study reports on mesophilic batch anaerobic biological methane potential (BMP) assays carried out with different concentrations and combinations (ratios) of OFMSW, TWAS (microwave (MW) pre-treated and untreated) and PS to assess digester stability and potential improved specific biodegradability and potential increased specific biogas production by digestion of OFMSW with PS and TWAS in various tri-substrate mixtures. Results indicated improvements in specific biogas production with concomitant improvements in COD and volatile solid (VS) removal for co-digestion of OMSW, TWAS and PS vs. controls. In terms of improvements in biogas production and digester stability the OFMSW:TWAS:PS:50:25:25 ratio with or without TWAS MW treatment was deemed best for further continuous digester studies. At a 15d HRT which is the regulatory policy in the province of Ontario for municipal mesophilic anaerobic TWAS:PS treatment, co-digestion of OFMSW:TWAS:PS, and OFMSW:TWASMW:PS resulted in a 1.38 and 1.46 fold relative improvement in biogas production and concomitant waste stabilization when compared to TWAS:PS and TWASMW:PS digestion at the same HRT and volumetric VS loading rate respectively. Treatment of OFMSW with PS and TWAS provides beneficial effects that could be exploited at MWWTP that are being operated at loading rates less than design capacity.
125

Modeling and Control of a Co-axial Helicopter

Zare Seisan, Farid 26 March 2012 (has links)
This thesis lays the foundations for the development of a small autonomous coaxial helicopter. This is an helicopter with two propellers mounted on the same axis and revolving in opposite directions. To steer the helicopter, this thesis proposes a mechanism that moves the helicopter’s centre of mass. Although such a mechanism has already been investigated experimentally in the literature, it has never been rigorously modeled, and a theoretical analysis has never been performed. This thesis, for the first time, presents an accurate mathematical model of the coaxial helicopter which takes into account the gyroscopic effects of the rotors, the reaction forces and torques exerted by the moving mass actuator on the helicopter body, and the fact that the inertia of the helicopter is time-varying. A nonlinear controller is rigorously derived which makes the helicopter hover at desired positions in three-space. A number of physical prototypes are discussed. None of them is capable of autonomous flight yet, but the experimental and simulation results provide reassurances that the proposed methodology is viable.
126

Modeling and Control of a Co-axial Helicopter

Zare Seisan, Farid 26 March 2012 (has links)
This thesis lays the foundations for the development of a small autonomous coaxial helicopter. This is an helicopter with two propellers mounted on the same axis and revolving in opposite directions. To steer the helicopter, this thesis proposes a mechanism that moves the helicopter’s centre of mass. Although such a mechanism has already been investigated experimentally in the literature, it has never been rigorously modeled, and a theoretical analysis has never been performed. This thesis, for the first time, presents an accurate mathematical model of the coaxial helicopter which takes into account the gyroscopic effects of the rotors, the reaction forces and torques exerted by the moving mass actuator on the helicopter body, and the fact that the inertia of the helicopter is time-varying. A nonlinear controller is rigorously derived which makes the helicopter hover at desired positions in three-space. A number of physical prototypes are discussed. None of them is capable of autonomous flight yet, but the experimental and simulation results provide reassurances that the proposed methodology is viable.
127

Factors that influence Winnipeg employers to participate in post-secondary co-operative education programs in technical communication

Campbell, Alexa 18 August 2006 (has links)
Co-op programs bridge the gap between the academic and work worlds and provide students with practical experience in their chosen fields while they earn money between academic school terms. The Technical Communication Diploma program at Red River College in Winnipeg, Manitoba, has incorporated a co-operative education term. Instructors at the College charged with placing co-op students each year are challenged in finding such placements, and they receive little guidance from research. In this study, I interviewed 21 employers in Winnipeg who hired co-op students from the Technical Communication Diploma program at Red River College from 2003–2005, to determine their perspectives on participation in co-op programs. Important factors influencing Winnipeg employers were the productivity of students and their specialized skill sets. The major deterrent to re-hiring students was lack of funding. A Model of Employers’ Motivation to Participate in Co-op Programs is proposed. / October 2006
128

Skrivsamarbete och produktion av elektroniska dokument i studiesammanhang / Collaborative writing and production of electronic documents in a study context

Palmquist, Jonas January 2009 (has links)
This thesis paper presents experiences and views on collaborative writing from interviews with university students. Analysis of these interviews, focusing on problems with coordination and technological tools,  shows that problems to some extent can be avoided with knowledge of the tools used and knowledge of coordination.
129

Study of the Structural and Magnetic Properties for Nanostructured Co on Graphene/Pt(111)

Liu, Cheng-Han 13 August 2012 (has links)
In this study, we aimed to investigate the magnetic properties of the Co/graphene/Pt(111). Firstly, we used the annealing technique to prepare graphene. The car- bon atoms were segregated from the bulk of the Pt(111) to form graphene eager on the surface. After the preparation of graphene, we confirmed its quality by using STM and LEED. Secondly, we deposited 3 to 25 ML (monolayer) Co on graphene/Pt(111) by electron beam evaporator at low temperature ( 200 K). Then, we measured the ferromagnetic properties of different thickness of Co on graphene / Pt(111) by XMCD, and studied the growth behavior of few monolayer Co on graphene by STM. By serial analysis no ferromagnetic property of few monolayer Co was detected on graphene / Pt(111) by X-ray absorption spectra. The STM image show that the few monolayer Co on graphene mucleates as clusters.
130

The Influence of Copayment on Medical Expenditures and Utilization

Lo, Ying-Ying 28 August 2001 (has links)
ABSTRACT From August 1, 1999, ¡§Co-payment For the Frequent-Visit Outpatients¡¨ has gone into effect. Frequent visit outpatients have to pay more medical expenses out of their own pocket. How did the new co-payment scheme affect the medical expenditure and utilization of the outpatients, especially frequent-visit outpatients? Can this new co-payment scheme work efficiently and reach its goal: reduce the unnecessary waste of the medical resources? At Taiwan, Central Healthcare and Medical Service (CHMS) has a large outpatient database, which contains the basic information of the outpatients. This study chose the database about the ¡§Frequent Outpatients¡¨ from August-December 1998, and August-December, 1999 as population. Such data included the 157,613 cases from 1998 and 160,870 cases from 1999. By analyzing the 1998 and 1999 data provided by the Central Healthcare and Medical Service, this study found the followings have been changed since new scheme took effect: 1. Co-payment had broad and deep effect on the patients¡¦ medical care utilization. Due to the additional High Medical Utilization Co-payment Fee, NT 50 or NT 100, outpatients would be more cautious before they go to see the doctors. At the same time, trying to get more for what they pay, outpatients would rather go to the major regional hospitals or centers in the medical system than small hospitals or clinics. As for the prescribed drug, outpatients were inclined to ask doctors for prescription drugs that can be taken for more days, so they can reduce their visits and therefore save some co-payment fees. This study also found prescribed drug expenses per patient dramatically increase when the average drug expenses per day decrease. Apparently, the increased drug expenses were form the more prescribed-drug days per visit. With the drug expenditures going up, average outpatient expenses per visit increased and the detailed and combination of medical bill varies. 2. Male and female had different responses to this new co-payment scheme. The gender-oriental differences were found in the following areas: ¡]1¡^Regional hospitals (centers) or small clinics. ¡]2¡^The average prescribed-drug days for each visit. ¡]3¡^Drug expenditure per day per patient.¡]4¡^Total expenses per outpatient visit. ¡]5¡^The detailed breakdown of each outpatient visit¡¦s expenses. 3. No effect on the following outpatient age segments:¡¨ age 6-14 teenager¡¨,¡¨ age 15-24 young people¡¨, and ¡§age 25-44 adults¡¨. The new co-payment system had no effect on the above-mentioned age groups, but it did have big and deep influence on the ¡§age 45-64 mid-age adult¡¨ and ¡§age 65 + elderly¡¨, especially on the elderly. The elderly were the major medical service user, and a lot of them lived on their retire and lived on their pensions, so they got hit badly by the high co-payment. 4. In general the higher co-payment had big effect on following three groups: ¡]1¡^¡§Media-utilization Outpatient Group¡¨, ¡]2¡^¡§High- utilization Outpatient Group¡¨ ¡]3¡^¡§Extremely- utilization Outpatient Group¡¨ To save money, outpatients, whatever group they belong to, would reduce their doctor visit. After analyzing all of the above-mentioned aspects, impacts, differences, changes and effects this high co-payment have had on the different age and gender groups since August 1999, this study concluded that the new co-payment regulation had significantly reduced the medical service demands, especially from female or male age 45+.

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