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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.
201

Vnímání zemských hranic a jejich role v členění geografického prostoru: irsko - britská a česko - německá hranice v letech 1750 - 1850 / Perception of political boundaries and their role in the division of geographical space: the Irish-British and Bohemian-German boundaries between 1750 and 1850

Power, Martina January 2012 (has links)
Vnímání zemských hranic a jejich role v členění geografického prostoru: irsko-britská a česko-německá hranice v letech 1750-1850 Abstrakt Martina Power Tato práce analyzuje vnímání zemských hranic a prostoru za pomoci srovnání německých cestopisů Čechách a britských cestopisů o Irsku publikovaných mezi lety 1750 až 1850. Obě země mají multietnický a multikulturní charakter, historicky a geograficky definované zemské hranice a jsou ve sledovaném období součástí větších nadnárodních politických celků. Význam a vnímání těchto politických příslušností je zkoumán především s ohledem na sílící integrační tendence vycházející z centra těchto celků. Zohledněno není pouze vnímání hranic politických, ale také vnímání hranic geografických, či "přirozených" (moře a hory) a hranic kulturních. U reprezentací Čech a Irska je předpokládáno, že významné místo mezi kulturními hranicemi budou zaujímat hranice konfesionální, jazykové, etnické, hranice mezi různými typy aglomerací (města a venkov), mezi různými krajinnými typy (hory a nížina) a kvalitativní hranice mezi chudobou a prosperitou. Ačkoli se přítomnost kulturní hranice do jisté míry odráží také do fyzické podoby prostoru, je její konstrukce produktem mysli a vnímání jedince, cestovatele, který se v prostoru pohybuje. Při využití cestopisů k rozkrytí významů, které...
202

EXPANDING BOUNDARIES, RECALIBRATING CORE VALUES & CENTERING COMMUNITIES: HOW COLLABORATION IS CHANGING THE JOURNALISTIC FIELD

Walters, Patrick, 0000-0003-2937-9571 January 2022 (has links)
With the traditional commercial model failing, U.S. news organizations are increasingly turning to various types of collaborations in order to produce news content. They are partnering with nonprofits, universities, creative groups, citizen journalists and other entities, many of them non-journalistic in nature. As a result, these diverse groups are increasingly having to negotiate different sets of values and priorities as they establish journalistic processes and create news content. This dissertation explores, first, the question of how the structure and makeup of such diverse collaborations influences the journalistic values and norms by which the effort abides; second, it examines how the processes of collaborations reflect these negotiated norms and values. The project seeks to shed light on the ways traditional journalistic boundaries are being expanded and the journalistic field transformed by new, non-traditional journalistic partners in collaborations. The qualitative study – which utilizes in-person and virtual ethnography, in-depth interviewing, and textual analysis – focuses on two different collaborations: a fledgling partnership called the Dallas Media Collaborative, which involves 14 different journalistic and non-journalistic partners working together to cover the topic of affordable housing in Dallas, Texas; and the Credible Messenger Reporting Project, which pairs professional journalists and community journalists in the coverage of gun violence in Philadelphia. The study finds that these partnerships demonstrate evidence of journalists expanding their traditional boundaries to include new partners in the process of creating news content, showing that collaboration can mark an attempt at field repair. These new partners are helping to re-envision the purpose of the field, with a much greater focus on public service and the goals of effecting social change and empowering communities; they are also forcing an expansion of the boundaries of what can be considered journalism – especially in terms of creative work and audience engagement. However, journalists often continue to enforce traditional values even amid the presence of non-traditional partners, and the power dynamics of traditional journalism are persistent. As a result, collaborations continue to be a site of constant of contested norms and values, evidenced both in journalistic processes and in the content that they produce. / Media & Communication
203

Fabrication and measurements on metal-semiconductor diodes

Chan, Alan Chin Luen January 1987 (has links)
No description available.
204

Exploring Ethical and Boundary Challenges in Outreach Psychotherapy: A Training Model

Rogers, Susan M. 20 September 2012 (has links)
No description available.
205

Migration of Elk (Cervus canadensis) and Barriers to Movement

Watkins, Levi 21 April 2023 (has links) (PDF)
Movement patterns of animals are varied, complex, and can be influenced by environmental and anthropogenic factors. One form of animal movement, migration, is influenced by environmental factors that alter the timing, duration, intensity, and likelihood of migration. Additionally, features of the landscape, both natural and anthropogenic, can alter how animals move through their seasonal and home ranges. Movement patterns can be impeded or prevented by features such as railroads, rivers, and roads. Here we explore characteristics of elk (Cervus canadensis) migration by evaluating the strategies of migration exhibited and the factors that influence migration of elk in central and eastern Utah. In addition we determine landscape features that act as barriers to movement of elk. In the first chapter, we characterize migration of elk, and examine the influence of environmental factors have on the propensity and intensity of migration. In the second chapter, we determine barriers to movement and if the identified barriers could be better used as management area boundaries.
206

The Boundaries of Texas

Wilkinson, C. A. 08 1900 (has links)
This thesis explores the history behind the creation of Texan boundaries. The boundaries of Texas were the cause of disputes between the French, the Spanish, Mexico, and later the United States of America. The intensity of these disputes threatened to disrupt the Union itself, and caused a war between the United States and Mexico.
207

Förhållningssätt till plagiat inom bildämnet

Loredo, Aniela January 2012 (has links)
The purpose of this study is to gain insight on how art teacher’s reason about what is “plagiarism” in the subject of art. This study focus on how different art teacher´s reason on the boundaries of plagiarism. What are the rules of duplicating an image before it is looked upon as plagiarism? The five interviewed teachers refer in its reasoning to the main curriculum and the rules of copyright; they also support the negative view of the plagiarism in the world of art.The theory of originality is a theory that deals with the vision of the originality in contemporary time. It is a theory that opposes the romanticism view on the original and question the traditional approach to the artist's ability to create out of nothing. This theory combined with the main curriculum and the rules of copyright are used in this study to analyze teachers' approach and way of thinking about the boundaries of plagiarism in art class in upper secondary level. The results show that the teachers consider this topic to be complicated, and think differently about the restrictions.Keywords: art
208

Applicability of Planetary Boundaries to improve Sustainability Performance at Companies : A Case Study at Sandvik Materials Technology / Applicering av konceptet planetära gränser för att förbättra miljöprestanda i företag : En fallstudie av Sandvik Materials Technology

Svensson, Katarina January 2018 (has links)
Frågor kopplade till ekologisk hållbarhet i företagssammanhang (både i forskning och inom företagsvärlden) har historiskt inte haft speciellt mycket gemensamt med forskning om ekosystem och miljöprocesser. Styrning av affärsverksamhet för att uppnå ekologisk hållbarhet är typiskt fokuserad på linjära företags eller industri-specifika miljöproblem. Forskningen om ekosystem och miljöprocesser har antagit ett holistiskt perspektiv på miljöproblemen vilket erkänner icke-linjära karaktärsdrag i ekosystemens svar på mänsklighetens avtryck i form av miljöförstörande aktiviteter. Denna studie försöker bringa dessa två skilda tillvägagångsätt tillsammans genom att applicera ett holistiskt perspektiv på ekologisk hållbarhet i företagssammanhang. Detta testas genom att undersöka om hur den konceptuella modellen ’planetära gränser’ kan användas i företag för att stödja företagens arbete med ekologisk hållbarhet. Genom tre analytiska och åtta relaterade empiriska frågeställningar söker denna studie svaret på frågan ifall ramverket ’planetära gränser’ är ett lämpligt verktyg för att förbättra företags prestationer inom ekologisk hållbarhet. En fallstudie på företaget ’Sandvik Materials Technology’ som inkluderar intervjuer med nyckelpersoner och en analys av deras verksamhet och processer utifrån perspektivet ’planetära gränser’, samt en strukturerad litteraturstudie har genomförts för att svara på verktygets lämplighet för applicering i företagsverksamhet. Från litteraturstudien konstateras att föreslagna metoder för implementering på andra nivåer än den globala typiskt inkluderar en kombination av ramverket ’planetära gränser’ med ett annat verktyg. Totalt fann litteraturstudien nio föreslagna kombinationer varav tre var testade i fallstudieformat på regional och nationell nivå. Sex kombinationer inkluderar metoder för att skala ner planetära gränser till andra nivåer än den globala. Implementering av ramverket i företagssammanhang kan enligt den studerade litteraturen assistera företag i deras prestationer inom ekologisk hållbarhet genom att användas för prioritering bland miljöproblem. Vidare har ramverket beskrivits som ett starkt utvärderingsverktyg för externa intressenter.  Intervjuerna visade en skepticism mot verktygets möjligheter att förbättra Sandvik Materials Technologys prestationer på (ekologisk) hållbarhetsområdet. Intervjupersonerna tyckte förvisso att det var viktigt att luta sig mot vetenskapen för att ta fram miljömål, men inte bara. Miljömål på företag måste också ta hänsyn till kostnadseffektivitet och/eller affärsmöjligheter. Sandvik Materials Technology´s verksamhet och processer lämpar sig dock väl för en analys utifrån perspektivet ’planetära gränser’ då kopplingar kunde fastställas för alla gränser. Jämfört med företagets nuvarande miljö och klimatstrategi visade analysen utifrån ’planetära gränser’ på några fler möjliga fokusområden (t.ex. biologisk mångfald och påverkan på biokemiska flöden) medans andra förblev desamma (klimatförändringar och vattenanvändning). Det nuvarande huvudfokusområdet, resursanvändning inkluderas dock inte på ngt annat sätt än möjligtvis indirekt. En fullskalig kvantitativ implementering av ramverket ’planetära gränser’ kräver på grund av avsaknaden av robusta metoder starkt engagemang där det ska genomföras. Detta engagemang bedöms saknas på Sandvik Materials Technology, därför konstateras att verktyget ensamt idag inte är moget för implementering på detta företag. / The question investigated in this study is whether the framework ‘planetary boundaries’ can be a suitable tool for improving sustainability performance at companies or not. It does so by investigating three analytical and eight related empirical questions. The methods in this study include; a structural literature review, qualitative interviews with key players at the focal company Sandvik Materials Technology and a qualitative analysis of the steel industry and Sandvik Materials Technology’s relationship to planetary boundaries. From the literature study, it was concluded that as for now, methods for applying the planetary boundary framework lack in maturity. It does not follow from this that there is no scientific relevance in developing methods for application, but more research is needed to confirm a methodological framework for application which is suitable for companies. The interviews revealed a skeptical attitude towards the framework´s ability to improve Sandvik Materials Technology´s sustainability performance. To derive environmental targets from science was viewed as a necessity, however environmental targets in companies must take other aspects (e.g. cost-effectiveness and business opportunity) into account as well.   The qualitative Planetary Boundaries analysis showed that the activities and processes at Sandvik Materials Technology is well suited for an environmental assessment based on a planetary boundaries perspective. Some focus areas remained the same as in their current environmental strategy (e.g. climate change and fresh water abstraction) but others (biosphere integrity and biochemical flows) appeared as new possible focus areas. Sandvik Materials Technology´s main focus, resource use, were however excluded from an environmental assessment based on a planetary boundaries perspective. Due to the lack of mature methods, an implementation of the framework at a company requires a strong commitment at the company. The researcher concludes that such level of commitment is lacking at Sandvik Materials Technology. Therefore, this study reaches the conclusion that the planetary boundary framework is, at least for now, not alone a suitable tool for improving sustainability performance at the focal company Sandvik Materials Technology.
209

Phenomenology And Experimental Observations In High Temperature Ternary Interdiffusion

Elliott, Abby Lee 01 January 2004 (has links)
A new method to extract composition dependent ternary interdiffusion coefficients from a single diffusion couple experiment is presented. The calculations involve direct determination of interdiffusion fluxes from experimental concentration profiles and local integration and differentiation of Onsager's formalism. This new technique was applied to concentration profiles obtained from selected semi-infinite, single-phase diffusion couple experiments in the Cu-Ni-Zn, Fe-Ni-Al, and Ni-Cr-Al systems. These couples exhibit features such as uphill diffusion and zero flux planes. The interdiffusion coefficients from the new technique along with coefficients reported from other methods are graphed as functions of composition. The coefficients calculated from the new technique are consistent with those determined from Boltzmann-Matano analysis and an alternate analysis based on the concept of average ternary interdiffusion coefficients. The concentration profiles generated from the error function solutions using the calculated interdiffusion coefficients are in good agreement with the experimental profiles including those exhibiting uphill diffusion. The new technique is checked for accuracy and consistency by back-calculating known interdiffusion coefficients; in this exercise, the new method accurately predicts constant diffusivity. After rigorous verification, the new technique is applied to previously unexamined couples in the Ni-Pt-Al system. With Ni as the dependent component, the main coefficients are shown to be relatively constant and the cross coefficients are negative. The interdiffusion coefficient representing the contribution of the concentration gradient of Pt to the interdiffusion flux of Al is relatively large for couples whose Al content is low, indicating that Pt has a significant effect on Al when Al concentration is low. Another important aspect of analyzing diffusional interactions is the movement of single and multi-phase boundaries within a diffusion couple. Phase boundaries for an n-component system are newly classified and boundary movement is analyzed in terms of degrees of freedom. Experimental evidence of a category 2:1 boundary is presented with a solid-to-solid semi-infinite diffusion couple in the Fe-Ni-Al system with two single-phase terminal alloys. The diffusion path for this couple surprisingly passes through the vertex of the equilibrium tie triangle on the phase diagram to exhibit three phase equilibria in a ternary system. Here is shown for the first time experimental verification of this phenomenon.
210

Nd Model Age Mapping of the Central Gneiss Belt In the western Grenville Province of Ontario, Canada.

North, Robert 04 1900 (has links)
<p> Nd isotope analysis is well suited for mapping major tectonic boundaries in highly metamorphosed orogenic belts. In this study, approximately 80 samples have been analyzed to map 2 such boundaries in the Central Gneiss Belt of the Grenville Province of Ontario. In Central Ontario, lithotectonic terranes with mapped outcrops of gneisses intruded by eclogites and/or coronitic metagabbro have Nd model ages less than 1.8 Ga are interpreted as components of the allochthonous polycylic belt. More northerly terranes are comprised of similar gneissic materials, but have different types of mafic intrusives and have model ages greater than 1. 8 Ga. These terranes are interpreted as fragments of the parautochthonous belt. These two belts are divided by a major thrust, termed the Allochthon Boundary Thrust (ABT) (Rivers, et. al., 1989). Continuing to the north, another step in the Nd model ages has been used to identify and map a cryptic suture between Archean and early Proterozoic crustal materials (Dickin & McNutt, 1989). </p> <p> Along the Georgian Bay coastline, between Pointe Au Baril and Parry Sound, the Shawanaga Shear Zone has been interpreted as the location of the ABT (Culshaw, et. al., 1994). Analysis of over 50 samples are used to map the crustal formation ages in this region and have confirmed this interpretation. Orthogneisses of the Britt Domain have Nd model ages in the range 1.8- 1.9 Ga. Reworking of the original crust has given these rocks U-Pb crystallization ages of~ 1.45 Ga, which means that these rocks have been metamorphosed prior to the Grenvillian event. Crossing the ABT, the orthogneisses of the Shawanaga Domain have a younger range of crustal formation ages, 1.4 - 1.7 Ga. The U-Pb crystallization ages of these rocks are ~ 1.36 Ga, and they lack signs pre-Grenvillian metamorphism. To the south of Franklin Island, the location of the ABT is difficult to map, as outcrop lies beneath the waters of Georgian Bay. Results of the Nd isotope analyses suggest that the ABT passes through the western edge of the Snake Islands, rather than to their east, as previously interpreted (Culshaw, et. al., 1994). </p> <p> Approximately 15 Nd isotope analyses were used to investigate a recently proposed location of the ABT (Ketchum & Davidson, 2000) in the vicinity of the Powassan Batholith. Results from near Arnstein, Restoule and Magnetewan agreed with the existing location of the ABT. To the east of the Powassan Batholith, 3 Nd model ages coupled with a lack of mappable eclogites and/or coronitic metagabbros suggest that earlier interpretations of the position of the ABT may be correct and that further studies in this region are necessary. </p> <p> A cryptic suture identified by crustal formation ages has been the focus of several previous studies (Dickin & McNutt, 1989, 1990; Holmden & Dickin, 1995; Dickin, 1998; Guo & Dickin, 1996). This suture has been mapped from the Georgian Bay coast through Lake Nipissing to the Ontario-Quebec border. New Nd isotope analyses and studies of the regional magnetics have identified a thrust slice between the Grenville Front tectonic zone (GFTZ) and the parautochthonous belt. The cryptic suture appears to coincide with a previously undescribed tectonic boundary west of the Key River. To the west of this boundary, straight orthogneisses within the thrust slice have Nd model ages greater than 2.2 Ga. These differ from the orthogneisses and metaplutonic tonalites to the east of this boundary, which exhibit kilometer-scale isoclinal folds and crustal formation ages between 1.8- 2.0 Ga, the previously identified range for the Britt Domain. </p> <p> Major steps in the depleted mantle model ages are observed in all three regions, allowing mapping of the ABT and the Penokean Suture. It is concluded that, in metamorphic orogenic belts, such as the Grenville Province, detailed mapping of major tectonic boundaries is greatly enhanced by the use of Nd isotope analysis. </p> / Thesis / Master of Science (MSc)

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