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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.
71

“It Is Easier to JudgeOthers Than to JudgeYourself.” : A Qualitative Study on HowWitnessing Impulsive PurchasesOnline Impact Brands’ Coolness

Zarrad, Nermine January 2024 (has links)
This thesis examines the complex relationship between impulsive buying behavior,perceptions of brand "coolness," and their impact on Generation Z consumers. Datacollected from 11 semi-structured interviews reveals that witnessing impulsive purchasesonline can have both positive and negative effects on a brand's perceived coolness. Key factors in this dynamic include the allure of community and a desire for socialvalidation. Using the Stimulus-Organism-Response (SOR) framework, impulsivepurchase posts (User-Generated content) act as stimuli, triggering emotional responsesthat influence brand perception. Consumers are more likely to make impulsive purchasesfrom brands they consider cool as a means of aligning themselves with a desirable imageor group. However, excessive exposure to impulsive buying posts can undermine abrand's exclusivity and diminish its cool factor. The study finds that coolness is inherently subjective, with individual interviewees' valuesand experiences shaping their responses. Brands that prioritize community, authenticity,and a carefully cultivated sense of exclusivity are best positioned to navigate the complexrelationship between impulsive purchase behavior and overall brand perception.
72

Bebopfraser i nutid : Ett möte mellan tradition och innovation

Moen, Johannes January 2019 (has links)
Sammanfattning Att vara jazzmusiker kan betyda så oerhört många olika saker, och själva ordet jazzväcker på många sätt fler frågor än svar. Jazz som framförs idag är en såpass bred musikform att den är nästan omöjlig att definiera. Diskussioner uppstår kring nästan alla antaganden när någon försöker beskriva jazz och dess utveckling, och inte minst när man gör det i textform. Viljan att definiera musik och kultur är naturlig för många människor. Det är ett sätt att definiera sig själv och varandra som musiker, konstnär och människa, och ett sätt att bygga sin identitet och sitt sammanhang. Sedan jazzen institutionaliserades har äldre jazz på många sätt satts på en piedestal som jag ibland är orolig för ska hämma dess utveckling. Jag har under lång tid strävat efter att utvecklas inom jazzens mer traditionella område, och jag har ibland ställt mig frågan om jag verkligen är jazzmusiker, jag som till exempel inte kan improvisera till Charlie Parkers Donna Leepå ett övertygande sätt.    Detta arbete kretsar kring fraser. Precis som vårat talspråk så består musik och inte minst bebop av små komponenter, fraser, som tillslut bygger upp ett språk vare sig det heter svenska eller bebop. Genom att få en djupare förståelse för hur fraserna kan omformas vill jag pröva en hypotes om att bebop är en central musikform inom jazzgenren.Jag har valt ut femton fraser från bebopen som jag bearbetat för att spelas i ett modernare sammanhang, Christian Scotts musik från 2015. Av den processen för jag sedan en diskussion kring hur mina fraser relaterar till Scotts musik, och om varför vi kallar både ny musik och bebop för jazz. Med de material jag arbetat med har jag inte kunnat se att vi kallar båda stilarna för jazz på grund av musiken i sig, utan att detta snarare har sociala anledningar. Av arbetet har jag även funnit tydliga verktyg till att omforma fraser, och i arbetet delar jag med mig av de lärdomar jag dragit längs vägen.
73

CFD Based External Heat Transfer Coefficient Predictions on a Transonic Film-Cooled Gas Turbine Guide Vane : A Computational Fluid Dynamics Study on the Von Karman Institute LS94 Test Case

Johnsson, Rosalie, Asiegbu, Lilian January 2022 (has links)
The turbine inlet guide vanes of a gas-turbine are subjected to extreme hot gas temperatures which increases the risk of mechanical failure and overall reduces the component lifespan. Hence, it is of great interest for gas-turbine manufacturers to establish methods for accurately estimating the temperature distribution along the vane surface. Due to the three-dimensional nature of turbine flow, it is of interest to establish Computational Fluid Dynamics (CFD) methodology which capture these three-dimensional effects. This thesis is one in a collection of theses conducted at Siemens Energy AB on the subject. Previous studies have investigated and validated the implementation of RANS simulations on non-cooled turbine vanes and endwalls. In this study, the focus is on studying a film cooled vane and establishing one RANS as well as one hybrid modelling strategy for heat transfer coefficient (HTC) predictions. The HTC prediction capabilities are compared and validated against experimental data presented in the doctoral thesis by Fabrizio Fontaneto on the LS94 vane at Von Karman Institute. The chosen RANS modelling method was the Shear Stress Transport (SST) k-ω turbulence model, with γ-Reθ transition modelling, based on the findings by Enico (2021) and Daugulis (2022). The model proved capable in estimating the HTC well on mainly the suction side of the vane. The pressure side HTC was largely under-predicted, a common issue with the SST model also seen in the previous theses as well as the hybrid simulations. The strength of the SST k-ω turbulence model, with γ-Reθ transition modelling, is in accurately capturing the HTC magnitude, most likely due to the well-predicted turbulence intensity decay at the inlet. However, it largely under-predicts the HTC along the suction side film-coolant layer, implying that it may be over-estimating the film-cooling capabilities. The hybrid model chosen was the Scale Resolving Hybrid (SRH) model, with underlying RANS SST k-ω. Compared to RANS, hybrid results were under-estimated, seemingly offset from the experimental data by a constant 200 units along the entire vane midspan. This is likely due to the inaccurate turbulence intensity presented in the SRH simulations, which decays quickly along the inlet compared to RANS and experimental data. Yet still, the hybrid model showed potential in capturing certain results not seen with RANS, such as the secondary flow effects by the vane endwalls, as well as arguably capturing the general HTC trend at midspan seen in the experimental data. Additionally, the section of severely under-predicted HTC by the suction side film-coolant seen with RANS is not present in the hybrid results. Although the hybrid model has proven promising in many aspects, in its current state it is not a viable method for HTC predictions due to its general under-prediction of HTC. Largely, the authors suspect this is due to the undesirably coarse mesh around the cooling holes, which leads to RANS computation in regions where SRH is desired. Thus, improvements would need to be made to the model, where, for example, implementing a zonal hybrid RANS-LES model would be an option. Considering the hybrid model in its current state, RANS is the preferred method, especially when considering the greater computational cost and the labor associated with hybrid simulations which were experienced during this study. In conclusion, it is evident that the correct capture of inlet turbulence intensity decay as well as suitable mesh refinement by the cooling holes are crucial for obtaining the correct magnitudes of HTC, and thus, the capture of it should be of utmost priority in future work within the field.
74

The Role of Cool Girls, Inc. Participation and Parent-Child Relationship Quality in the Prediction of Social Capital and Hope for the Future among Female Youth

Seitz, Scot R 10 May 2017 (has links)
Social capital, or access to resources through relationships with other people, can facilitate the socioeconomic mobility of youth living in low-income communities. This study examined whether parent-child relationship quality and participation in a youth development program (YDP) were associated with gains in hope for the future, and whether those associations were mediated by parent social capital (i.e., access to resources through relationships with parents) and non-parent social capital (i.e., access to resources through relationships with people other than parents). The sample included 216 participants of one YDP program, Cool Girls, Inc., and 92 comparisons. Path analyses indicated that program participation for over one year predicted gains in non-parent social capital, and increases in both parent and non-parent social capital predicted increases in hope for the future. There was also evidence that first-year program participation was associated with gains in hope for the future. Implications for practice and research are discussed.
75

The Meteorological Significance Of False Rings In Eastern Redcedar (Juniperus Virginiana L.) From The Southern Great Plains, U.S.A.

Edmondson, Jesse R. 01 1900 (has links)
The growth rings of eastern redcedar (Juniperus virginiana L.) often contain a high frequency of false intra-annual growth bands, which complicates the dendrochronology of this species. However, exactly dated false rings replicated among many trees can reflect major weather changes during the growing season. Sixty-one trees from two sites (Oklahoma and Kansas) were dated and used to compile replicated chronologies of false rings at both locations extending from AD 1700–2000. False-ring events during the modern instrumental era were compared with the daily weather data from nearby stations. Significant false-ring events occurred at both locations during years that experienced a dramatic late-growing season weather reversal, when an extended period of high temperatures and drought was followed by prolonged cool and wet conditions. Synoptic weather maps for these events indicate that all ten replicated false-ring events in the instrumental era occurred during the highly unseasonable penetration of a cold front into the region. However, none of the significant false-ring events occurred in the same year at both sites. These separate false-ring chronologies indicate that there may be phenological differences in the timing of radial growth in redcedar between Kansas and Oklahoma, and that the weather conditions responsible for false-ring formation often occur at the mesoscale and do not often impact central Kansas and northcentral Oklahoma simultaneously.
76

En het potatis : En kvalitativ fallstudie om journalistikens gestaltning av mediedebatten kring fallet Mr Cool / A hot potato : A qualitative case study on the journalistic representation of the debate about Mr Cool

Ådemo, Julia, Blixt, Moa January 2019 (has links)
This paper aims to examine the different portrayals in Swedish journalism about a case with a controversial topic. The analyzed case in this study focuses on the provocative rapper Mr Cool and his song about sexual intercourse with a child and the following mediated debate about freedom of speech and morality. The research questions examined were: How does the media frame the meta-debate about Mr Cool? We picked 16 articles and analyzed them with a qualitative content analysis method using framing theory and argumentation techniques in order to be able to examine how the debate were portrayed by the media. We also used the moral panic concept to get a deeper understanding of the mechanics of topics the society is concerned with. We have found that the participants of the debate handled the subject differently and with different strategies, depending on which side they would support. The central discussion was about personal taste, boundary making and the consequences of silencing what is thought to be offensive. The results of the analysis agrees with previous studies and theories in the field when it comes to moral panics and fear as a natural part of our society. History is likely to repeat itself but with other motives and other fears.
77

Factors associated with injuries among marathon runners in Eldoret, Kenya

Chesergon, Fred Kiplagat January 2017 (has links)
Masters of Science - Msc (Physiotherapy) / Extrinsic factors like terrain, hard running surfaces or incorrect shoes have been known to be contributing factors to injury, and intrinsic factors such as poor flexibility, mal-alignment anthropometry, previous injury and running experience have been identified in playing a role too. Little is known about the factors associated with injuries among marathon runners in Eldoret, Kenya. It is therefore important to identify the possible risk factors associated with running injuries in order to prevent further injury and severe long-term complications
78

Simulations of magnetoconvection in cool main-sequence stars

Beeck, Benjamin 14 February 2014 (has links)
No description available.
79

Conservation genetics of a Gondwana relict rainforest tree, Nothofagus moorei (F. Muell.) Krasser

Schultz, Lee January 2008 (has links)
Nothofagus moorei is a long-lived, Gondwana relict cool temperate rainforest tree. Nothofagus-dominated rainforests were widespread across much of eastern Australia during the mid-Tertiary but today, N. moorei occurs only as a series of disjunct, isolated populations in south-east Queensland and northern New South Wales. Clonal regeneration via coppicing is reported to be a common feature of most N. moorei populations, while successful sexual regeneration is believed to be rare, occurring largely only in niches with high light levels and limited competition. While clonal propagation enables population persistence and individual longevity, it cannot generate novel genotypes. Isolated populations, potentially high levels of clonality, low-potential for successful sexual regeneration, long-lived individuals and predicted global warming effects make N. moorei vulnerable to local, if not total, population extinction. The current study aimed to assess the relative conservation status of extant N. moorei populations in order to develop appropriate conservation management strategies for long-term population persistence. Levels of genetic diversity and population structure were examined across the remaining natural distribution of N. moorei using nuclear amplified fragment length polymorphism (AFLP), microsatellite and chloroplast DNA markers. In total 607 individuals were sampled from 20 populations and 5 geographical regions: Lamington/Border Ranges, Ballow, Dorrigo/New England, Werrikimbe and Barrington. Genetic results were then analysed to assess conservation status of each population and geographical region. Microsatellite and AFLP data identified comparatively high levels of genetic diversity in all remnant populations sampled. The prevalence of coppicing in the northern Lamington/Border Ranges populations appears to have had little impact on relative levels of genetic diversity, heterozygosity or population structure. Population differentiation was limited, with the majority of genetic variation retained within populations, no regional structuring and high levels of admixture. Analysis of cpDNA variation showed that the three Dorrigo/New England populations were divergent from all other populations, suggesting an ancient divergence in N. moorei prior to Pleistocene glaciations. While levels of genetic diversity were essentially the same across all populations, Bayesian analysis of genetic structure did identify four populations with differing gene pool proportions which would be important to include in conservation efforts in addition to individuals from other populations. Similarly, individuals from four significantly differentiated groups identified using traditional F-statistics suggests individuals from each of these four groups should be included in future conservation plans. In order to maintain ancient chloroplast lineages, populations from the Dorrigo/New England region should also be assigned special conservation value. Populations of N. moorei appear to have retained significant levels of genetic diversity and show little population divergence in spite of marked reductions in the natural distribution since the Early Miocene. Sampling of these ancient trees however, suggests current levels of diversity in N. moorei actually reflect past diversity and differentiation, and that there have been insufficient generations since the historical contraction in distribution for genetic diversity to be adversely affected and regional differentiation to evolve. Long-term persistence of N. moorei is still threatened by future accelerated climate change and the limited preferred habitat that remains where N. moorei can expand its range. While the ability to regenerate clonally may enable long-term persistence of N. moorei, populations are still likely to continue to decline as climatic conditions will increasingly favour sub-tropical and warm temperate species across much of N. moorei's northern distribution. Southern populations of N. moorei, in contrast, could expand their ranges into eucalypt woodlands as predicted climate becomes warmer and wetter. However, this will ultimately be determined by the frequency of fires, with increased fire frequencies favouring the expansion of eucalypts and contraction and possible local population extinction of N. moorei dominated cool temperate rainforests.
80

DEFAULT MODE NETWORK (DMN) AND CENTRAL EXECUTIVE NETWORK (CEN) RESTING-STATE CONNECTIVITY AND THEIR RELATIONSHIP TO HOT AND COOL EXECUTIVE FUNCTIONS IN A MIXED CLINICAL GROUP

Jagger, Audreyana 01 May 2016 (has links)
The current study explored how hot and cool executive functions (EF) could predict resting-state connectivity of the Default Mode Network (DMN) and Central Executive Network (CEN) in a mixed clinical and typically developing sample of adolescents. It was hypothesized that hot EF would predict a quadratic, inverted U-shaped, relationship between connectivity of the major regions of the DMN: the Posterior Cingulate Cortex (PCC) and the Medial Prefrontal Cortex (MPFC). It also was hypothesized that cool EF would predict a quadratic, inverted U-shaped, relationship between the connectivity of the major regions of the CEN: the right Posterior Parietal Cortex (right PPC) and the right Dorsal Lateral Prefrontal Cortex (right DLPFC). The results suggested that hot EF, specifically emotional regulation, predicted a quadratic relationship in DMN connectivity. However, this relationship was U-shaped instead of an inverted U-shaped. Thus, participants who scored well or poorly in emotional regulation generally had higher connectivity than those with average scores in emotional regulation. There were no significant results between cool EF and the CEN. Additional exploratory analysis suggested that the main hypotheses were not driven or suppressed by group differences. Further exploration observed other brain regions involved in resting-state activity that may play a role in hot or cool EF. Overall, findings support the Internal Mentation Hypothesis of DMN activity and are indicative of a relationship between emotional regulation and DMN resting-state connectivity.

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