• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 107
  • 86
  • 28
  • 21
  • 5
  • 5
  • 2
  • 1
  • 1
  • Tagged with
  • 233
  • 169
  • 114
  • 95
  • 95
  • 95
  • 57
  • 56
  • 53
  • 47
  • 45
  • 44
  • 44
  • 44
  • 44
  • 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.
31

Computer-based environmental management /

Seppelt, Ralf. January 1900 (has links)
Techn. Univ., Habil.-Schr.--Braunschweig, 2003. / Literaturverz. S. 259 - 277.
32

Die soziale Konstitution der Umwelt

Krämer, Klaus January 2008 (has links)
Zugl.: Münster (Westfalen), Univ., Habil.-Schr., 2007
33

Bedingungen umweltbewussten Verhaltens am Beispiel der Anschaffung einer Biotonne

Klocke, Ulrich. January 2005 (has links)
Saarbrücken, Univ., Diplomarb., 1997.
34

Análise de Percepções de Segurança da Informação por meio da Engenharia Semiótica e da Teoria do Umwelt

Melo, Rodrigo Gomes Vieira de 11 November 2016 (has links)
Submitted by Mayara Nascimento (mayara.nascimento@ufba.br) on 2017-05-31T11:17:55Z No. of bitstreams: 1 Análise de Percepções de Segurança da Informação por meio Copy.pdf: 2013613 bytes, checksum: 3e82155de7be0cb2e3bd0d4e8c370848 (MD5) / Approved for entry into archive by Vanessa Reis (vanessa.jamile@ufba.br) on 2017-06-01T13:05:28Z (GMT) No. of bitstreams: 1 Análise de Percepções de Segurança da Informação por meio Copy.pdf: 2013613 bytes, checksum: 3e82155de7be0cb2e3bd0d4e8c370848 (MD5) / Made available in DSpace on 2017-06-01T13:05:28Z (GMT). No. of bitstreams: 1 Análise de Percepções de Segurança da Informação por meio Copy.pdf: 2013613 bytes, checksum: 3e82155de7be0cb2e3bd0d4e8c370848 (MD5) / A forma como os humanos interagem com os computadores sempre foi uma preocupação da Ciência da Computação. Durante décadas, a interação que outrora ocorria por meio de linhas de comando, em modo texto, ganhou dimensões, cores e adeptos. As interfaces surgiram com o propósito de tornar mais intuitiva a utilização das máquinas. Todavia, surgiram também alguns problemas, dentre eles, destacam-se os ataques cibernéticos por invasão de interfaces de aplicações Web por meio dos crackers. Durante um processo de interação humanocomputador em um sistema com falha de segurança, o discurso de metacomunicação emitido pelo designer pode ser, por exemplo, transmitido pelo cracker “disfarçado” de designer. De modo que no uso cotidiano de sistemas de informação temos o cracker como um sujeito onipresente, atuando ora no papel de usuário, ora no papel de designer. Na perspectiva da Interação Humano-Computador (IHC), a Engenharia Semiótica (EngSem) define a interação como um processo de metacomunicação entre designers e usuários, por meio da interface. Considerando essa perspectiva, esta pesquisa teve o objetivo de analisar e compreender as percepções de segurança da informação de tipos de sujeitos – usuários, designers e crackers - a partir das mensagens de metacomunicação de interface de software por meio da Teoria do Umwelt. Para alcançar o objetivo, considerou-se uma abordagem qualitativa de pesquisa, por meio dos Métodos de Inspeção Semiótica (MIS) e de Avaliação da Comunicabilidade (MAC), ambos da EngSem, para levantamento de dados sobre os processos de significação, interpretação e comunicação por meio da interface de um sistema web. A partir dos resultados concluiu-se que signos de metacomunicação de interfaces de software de segurança da informação não necessariamente influenciam na percepção do sujeito (usuário), por não serem totalmente percebidos, principalmente pelos usuários que não possuem conhecimentos específicos em segurança da informação. Adicionalmente, concluiu-se que elementos da Teoria do Umwelt articulados com métodos da Engenharia Semiótica podem contribuir para o uso de software de informação seguro e adequado ao uso.
35

Arbeitslosigkeit in Europa. Neue Perspektiven durch die Vermarktung umweltfreundlicher Technologien? : Beiträge zum 2. Chemnitzer Symposium "Europa und Umwelt"

John, Klaus Dieter, Rübbelke, Dirk T.G., von Hauff, Michael, Rogall, Holger, Ritt, Thomas, Rudloff, Matthias 24 July 2007 (has links) (PDF)
Die Chemnitzer Symposien-Reihe "Europa und Umwelt" wurde erstmalig im Jahre 2003 als Forum für die interdisziplinäre und anwendungsorientierte Diskussion aktueller umwelt- und europapolitischer Fragestellungen initiiert. Das einmal im Jahr im Rahmen der Europawoche stattfindende Symposium wird von Prof.Dr. Klaus Dieter John und Jun.-Prof.Dr. Dirk T.G. Rübbelke veranstaltet. Die Ergebnisse des 2. Chemnitzer Symposiums "Europa und Umwelt", welches im Jahre 2004 unter dem Titel "Arbeislosigkeit in Europa: Neue Perspektiven durch die Vermarktung umweltfreundlicher Technologien?" stattfand, werden im vorliegenden Tagungsband zusammengefasst. Er enthält die überarbeiteten Referate sowie eine Darstellung der Diskussionsbeiträge. Weil der Vortrag, der sich mit der Bedeutung erneuerbarer synthetischer Kraftstoffe beschäftigt hat, nur in Form der Präsentationsfolien zur Veröffentlichung zur Verfügung stand, haben sich die Herausgeber entschlossen, diese Folien durch einen eigenen Beitrag zu ergänzen, um das Thema auch den Lesern zu erschließen, die nicht an der Tagung teilgenommen haben.
36

Sentir, Criar, Dançar: o autoconhecimento como fundamento para a Dança-Educação

Silva, Maria Aparecida Linhares dos Santos January 2007 (has links)
Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-02-19T16:44:35Z No. of bitstreams: 1 Maria Aparecida Linhares dos Santos Silva.pdf: 5396289 bytes, checksum: 5e6ecc78480d1fd12d7e2c0951234cdd (MD5) / Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-02-21T19:32:32Z (GMT) No. of bitstreams: 1 Maria Aparecida Linhares dos Santos Silva.pdf: 5396289 bytes, checksum: 5e6ecc78480d1fd12d7e2c0951234cdd (MD5) / Made available in DSpace on 2014-02-21T19:32:32Z (GMT). No. of bitstreams: 1 Maria Aparecida Linhares dos Santos Silva.pdf: 5396289 bytes, checksum: 5e6ecc78480d1fd12d7e2c0951234cdd (MD5) / A práxis pedagógica resultante desta pesquisa sobre a Dança-Educação e sua criação artística, foi desenvolvida através da conscientização dos processos sensoriais do Ser-dan-çarino, da busca do autoconhecimento como fator fundamental na transversalidade de todo aprendizado da Dança, e da necessidade artística e profissional dos alunos da Escola de Dança da UFBA. Essa busca foi fundamentada pela Dança-Educação, pela Psicologia, es-pecificamente teoria da Análise Transacional, pela teoria do Umwelt (entorno ou auto mundo) de Jacob Von Uexküll trabalhando no encontro de um material específico que pode ser utilizado pelo dançarino para a sua criação. Trazemos a teoria dos Sistemas que funda-menta o sistema Ser-Corpo e seu Universo e a teoria da Complexidade. O trabalho artístico elaborado foi o desenvolvimento de um processo de composição em dança que levasse as oito alunas do grupo criado para essa pesquisa à criação de uma dança genuína do ser dan-çarino. A dança genuína é individual e foi baseada no trabalho de busca do autoconheci-mento de cada uma dessas alunas. O autoconhecimento foi o fator fundante para o conheci-mento e reconhecimento do Ser-Corpo e da Arte da Dança. Essa processo busca conhecer, reconhecer e apreender a informação ressignificada pelo Corpo que, estando em constante relação com seu ambiente de vivência é registro de acontecimentos, é mídia, e busca, através da Arte da Dança, constituir-se como um Ser-integral, Ser-Dança, Ser-Pleno.
37

Täglich für ein gutes Leben - Imagebroschüre

08 January 2019 (has links)
Die Broschüre informiert über die Aufgaben, Standorte und die Struktur des Sächsischen Landesamtes für Umwelt, Landwirtschaft und Geologie.
38

Arbeitslosigkeit in Europa. Neue Perspektiven durch die Vermarktung umweltfreundlicher Technologien? : Beiträge zum 2. Chemnitzer Symposium "Europa und Umwelt"

von Hauff, Michael, Rogall, Holger, Ritt, Thomas, Rudloff, Matthias 24 July 2007 (has links)
Die Chemnitzer Symposien-Reihe "Europa und Umwelt" wurde erstmalig im Jahre 2003 als Forum für die interdisziplinäre und anwendungsorientierte Diskussion aktueller umwelt- und europapolitischer Fragestellungen initiiert. Das einmal im Jahr im Rahmen der Europawoche stattfindende Symposium wird von Prof.Dr. Klaus Dieter John und Jun.-Prof.Dr. Dirk T.G. Rübbelke veranstaltet. Die Ergebnisse des 2. Chemnitzer Symposiums "Europa und Umwelt", welches im Jahre 2004 unter dem Titel "Arbeislosigkeit in Europa: Neue Perspektiven durch die Vermarktung umweltfreundlicher Technologien?" stattfand, werden im vorliegenden Tagungsband zusammengefasst. Er enthält die überarbeiteten Referate sowie eine Darstellung der Diskussionsbeiträge. Weil der Vortrag, der sich mit der Bedeutung erneuerbarer synthetischer Kraftstoffe beschäftigt hat, nur in Form der Präsentationsfolien zur Veröffentlichung zur Verfügung stand, haben sich die Herausgeber entschlossen, diese Folien durch einen eigenen Beitrag zu ergänzen, um das Thema auch den Lesern zu erschließen, die nicht an der Tagung teilgenommen haben.
39

Microplastics in Freshwater Systems

Klein, Sascha 21 April 2016 (has links) (PDF)
Synthetic polymers are one of the most significant pollutants in the aquatic environment, because of abilities such as buoyancy and extreme persistency. Serious effects are expected from so-called microplastics (particle size <5 mm) that are reported in rivers, lakes as well as the ocean and that accumulate in sediments worldwide. In this thesis the abundance of microplastics in river shore sediments in the Rhine-Main area of Germany was studied. Therefore, a new method was developed that is based on a sodium chloride density separation with subsequent destruction of natural debris, and identification of the plastic particles by microscopy or Fourier transform infrared spectroscopy (FTIR). Using the improved density separation, microplastics were separated from river shore sediments of 12 sites originating from the river Rhine, the river Main, and the stream Schwarzbach. Large amounts of microplastic particles of up to 1 g kg-1 or up to 4000 particles kg-1 were detected in the shore sediments. The identification by FTIR showed that polyethylene, polypropylene, and polystyrene were the most abundant polymer types in the sediments, covering over 75% of all plastics identified. Transport of microplastics from tributaries to main streams was indicated by the detection of identical pellets in the River Rhine and in the Main mouth. Comparable concentrations detected by sampling one site over a period of two years suggest a constant pollution of the river shore sediments with microplastics. For deeper insights into the sorption process of organic contaminants to synthetic polymers in freshwater systems, batch experiments in synthetic freshwater were conducted to determine sorption kinetics and sorption isotherms for four selected glass state polymers (polycarbonate, poly(methyl methacrylate), polystyrene, and polyvinyl chloride) and six different model substances (carbamazepine, hexachlorocyclohexane (β/γ), 17α-ethynilestradiol, chlorpyrifos, and o,p-dichlorodiphenyltrichlorethane). Sorption to the polymer particles was observed for all contaminants increasing with the KOW values of the contaminants. Because of losses of contaminants in control samples, sorption reaction models could be applied to four out of six contaminants, and isotherms were calculated for three contaminants. Furthermore, influences of the different polymer types used were observed in the experiments. Finally, microplastics separated from sediments were extracted and analyzed by GC/MS and LC-MS/MS using target screening methods and non-target approaches. Different pesticides were identified in the polymer particles, suggesting that microplastics can act as a sink for hydrophobic contaminants. Moreover, several plastic additives such as phthalates or chlorinated flame retardants were identified. For this reason, it is very likely that microplastics act as a direct source for these chemicals in aquatic systems. The results of this thesis stress the urgency for the mitigation of the plastic particles in the aquatic environment.
40

Musicians at the margins : a case study of the role of instrumental music teachers in a university music department

Spencer, Steven John January 2015 (has links)
This study presents the outcomes of an exploration of the ways in which instrumental music teachers (IMTs) engaged to teach in UK university departments experience their work and interpret their role. It provides the basis for realistic steps for enriching their contribution to and relationship with the department in which they are situated. The area of activity was examined through a qualitative research approach within a single case study design that highlights the particularities and complexities of the case and of its context. It progressed through semi-structured interviews, document review, job-shadowing and a research diary that engaged participants in an iterative process aimed at generating rich descriptions of the situation and increasing the veracity of its subsequent interpretation. The findings echo the isolated location found in earlier studies of IMTs in HE (Burwell, 2005; Haddon, 2009; Purser, 2005, Young et al, 2003) but note that they did not display the secretive or isolationist tendencies previously espoused. Instead there was a narrative of neglect and exclusion by the employer that contributed to a low sense of entitlement from these employees who occupy a peripheral and static position at the margins of departmental operations. It concludes that IMTs do not form a convenient organisational sub-unit (Weick and Orton, 1990) or a community of practice (Lave and Wenger, 1991) that would respond in a uniform fashion. Instead, they experience their engagement with the university in an individual manner framed by their personal and professional environment or umwelt (Uexküll, 1985) and interpreted according to their particular interests, needs and priorities. Finally it suggests that the employing department must recognise this diversity and facilitate greater participation of its IMTs through the creation of permeable boundaries that permit but do not require involvement in curriculum design and assessment, teaching innovations and research into instrumental pedagogy.

Page generated in 0.0399 seconds