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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.
11

Determing the Influence of the Built Environment on Pedestrian-Vehicle Crashes in Dekalb County, Georgia Using Geographic Information Systems

Jaworski, Derek S 18 December 2012 (has links)
This study aimed to examine how the characteristics of the road network and the built environment influence the frequency of pedestrian-vehicle crashes. Pedestrian crashes (2000 – 2007) on major roads in DeKalb County of Georgia were obtained from Georgia Department of Transportation. Hotspot analysis was performed on locations with frequent pedestrian incidents to determine their built environment characteristics. Using Geographic Information Systems, the built environment was characterized using road grade, curvature, population density, the amount stores and restaurants, bars, and public transit stops nearby. A negative binomial regression model was used to examine the influence of the built environment characteristics on pedestrian crashes. The results showed that all the variables except for road grade were positively associated with increased number of pedestrian crashes. Findings provided insights into the influence of built environment characteristics which is important for injury prevention to improve pedestrian safety.
12

Comparison of Traditional and Activity Theory Based Analysis Methods for Verbal Protocol Data

Bhatkhande, Yogesh Dilip 18 September 2006 (has links)
The think aloud method has been used in this research to generate data that reveals the thoughts of participants of a study while they are performing tasks. The pioneers of this method, Simon and Ericsson, have provided a method to analyze the data so as to obtain meaningful results. However, this analysis method is complicated and time consuming. Most researchers use some form of categorization to perform their analysis. Critical incidents were used to categorize the data gathered in the tests conducted as part of this research. This research proposed the use of tenets of Activity Theory while performing data analysis so that the cultural and environmental aspects that influence task performance are identified and addressed as part of the analysis. A data analysis template was created that directs the analyst to follow activity theory while performing the analysis. Sample data was gathered using the Think Aloud Method. The results obtained after analyzing this data using the proposed Activity Theory Based method were compared with those obtained when the same data was analyzed using a representative traditional method of analysis. The research included positive critical incidents, negative critical incidents and level of severity of negative critical incidents as the dependent measures. No significant differences were found between the two methods based on these dependent measures. Task type had a significant effect on the number of positive and negative critical incidents identified. / Master of Science
13

Incidentes em reatores nucleares de pesquisa examinados por análise de probabilidade determinística e análise  probabilística de  segurança / Incidents in nuclear research reactor examined by deterministic probability and probabilistic safety analysis

Lopes, Valdir Maciel 21 October 2010 (has links)
O presente trabalho tem o objetivo de avaliar os riscos potenciais apresentados pelos incidentes em reatores nucleares de pesquisa. Para o desenvolvimento do trabalho, duas bases de dados do Organismo Internacional de Energia Atômica, OIEA, foram usadas, o Incident Report System for Research Reactor e Research Reactor Data Base. Para este tipo de avaliação fez-se uso de Análise Probabilística de Segurança (APS), dentro de um limite de confiança de 90% e, Análise de Probabilidades determinística (APD). Para obtenção dos resultados dos cálculos de probabilidades por APS, utilizou-se a teoria e as equações sugeridas em documento da IAEA TECDOC - 636. O desenvolvimento dos cálculos das probabilidades por APS utilizou-se o Programa Scilab versão 5.1.1, de livre acesso, executável nas plataformas do Windows, Linux. Um programa específico para obter os resultados das probabilidades foi desenvolvido dentro do programa principal Scilab 5.1.1., para duas distribuições Fischer e Chi-quadrado, ambas no limite de confiança de 90%. Fazendo uso das equações de Sordi e do programa Origin 6.0, foram obtidas as doses máximas admissíveis relacionadas às probabilidades que satisfazem os limites de riscos estabelecidos pela Comissão Internacional de Proteção Radiológica, CIPR e, pode-se também obter estas doses máximas graficamente com a figura 1 resultante dos cálculos de probabilidades x doses máximas admissíveis. Verificou-se que a confiabilidade nos resultados das probabilidades está relacionada com a experiência operacional (reator x ano e fração) e, que quanto maior ela for, maior é a confiabilidade no resultado. Finalizando, sugere-se uma lista de futuros trabalhos que complementam este. / This study aims to evaluate the potential risks submitted by the incidents in nuclear research reactors. For its development, two databases of the International Atomic Energy Agency, IAEA, were used, the Incident Report System for Research Reactor and Research Reactor Data Base. For this type of assessment was used the Probabilistic Safety Analysis (PSA), within a confidence level of 90% and the Deterministic Probability Analysis (DPA). To obtain the results of calculations of probabilities for PSA, were used the theory and equations in the paper IAEA TECDOC - 636. The development of the calculations of probabilities for PSA was used the program Scilab version 5.1.1, free access, executable on Windows and Linux platforms. A specific program to get the results of probability was developed within the main program Scilab 5.1.1., for two distributions Fischer and Chi-square, both with the confidence level of 90%. Using the Sordi equations and Origin 6.0 program, were obtained the maximum admissible doses related to satisfy the risk limits established by the International Commission on Radiological Protection, ICRP, and were also obtained these maximum doses graphically figure1 resulting from the calculations of probabilities x maximum admissible doses. It was found that the reliability of the results of probability is related to the operational experience (reactor x year and fractions) and that the larger it is, greater the confidence in the outcome. Finally, a suggested list of future work to complement this paper was gathered.
14

Incidentes em reatores nucleares de pesquisa examinados por análise de probabilidade determinística e análise  probabilística de  segurança / Incidents in nuclear research reactor examined by deterministic probability and probabilistic safety analysis

Valdir Maciel Lopes 21 October 2010 (has links)
O presente trabalho tem o objetivo de avaliar os riscos potenciais apresentados pelos incidentes em reatores nucleares de pesquisa. Para o desenvolvimento do trabalho, duas bases de dados do Organismo Internacional de Energia Atômica, OIEA, foram usadas, o Incident Report System for Research Reactor e Research Reactor Data Base. Para este tipo de avaliação fez-se uso de Análise Probabilística de Segurança (APS), dentro de um limite de confiança de 90% e, Análise de Probabilidades determinística (APD). Para obtenção dos resultados dos cálculos de probabilidades por APS, utilizou-se a teoria e as equações sugeridas em documento da IAEA TECDOC - 636. O desenvolvimento dos cálculos das probabilidades por APS utilizou-se o Programa Scilab versão 5.1.1, de livre acesso, executável nas plataformas do Windows, Linux. Um programa específico para obter os resultados das probabilidades foi desenvolvido dentro do programa principal Scilab 5.1.1., para duas distribuições Fischer e Chi-quadrado, ambas no limite de confiança de 90%. Fazendo uso das equações de Sordi e do programa Origin 6.0, foram obtidas as doses máximas admissíveis relacionadas às probabilidades que satisfazem os limites de riscos estabelecidos pela Comissão Internacional de Proteção Radiológica, CIPR e, pode-se também obter estas doses máximas graficamente com a figura 1 resultante dos cálculos de probabilidades x doses máximas admissíveis. Verificou-se que a confiabilidade nos resultados das probabilidades está relacionada com a experiência operacional (reator x ano e fração) e, que quanto maior ela for, maior é a confiabilidade no resultado. Finalizando, sugere-se uma lista de futuros trabalhos que complementam este. / This study aims to evaluate the potential risks submitted by the incidents in nuclear research reactors. For its development, two databases of the International Atomic Energy Agency, IAEA, were used, the Incident Report System for Research Reactor and Research Reactor Data Base. For this type of assessment was used the Probabilistic Safety Analysis (PSA), within a confidence level of 90% and the Deterministic Probability Analysis (DPA). To obtain the results of calculations of probabilities for PSA, were used the theory and equations in the paper IAEA TECDOC - 636. The development of the calculations of probabilities for PSA was used the program Scilab version 5.1.1, free access, executable on Windows and Linux platforms. A specific program to get the results of probability was developed within the main program Scilab 5.1.1., for two distributions Fischer and Chi-square, both with the confidence level of 90%. Using the Sordi equations and Origin 6.0 program, were obtained the maximum admissible doses related to satisfy the risk limits established by the International Commission on Radiological Protection, ICRP, and were also obtained these maximum doses graphically figure1 resulting from the calculations of probabilities x maximum admissible doses. It was found that the reliability of the results of probability is related to the operational experience (reactor x year and fractions) and that the larger it is, greater the confidence in the outcome. Finally, a suggested list of future work to complement this paper was gathered.
15

CRITICAL INCIDENTS IN MULTICULTURAL SUPERVISION AND THEIR IMPACTS ON SUPERVISEES AND THE SUPERVISION RELATIONSHIP

Becerra, Monica 01 December 2018 (has links)
Multicultural competency is essential in the field of psychology and a major component of training involves multicultural supervision. Neglecting cultural issues may led to negative consequences in the development of the supervisor and supervisee relationship and in turn affect the work done with clients. Using a stratified random sample of 50 graduate students in APA accredited programs and internship sites, the researchers explored the specific supervisor behaviors and interventions that represent effective and poor multicultural supervision. This qualitative replication study incorporates Chu and Chwalisz’s (1999) critical incident questionnaire (CIQ) and a demographic questionnaire. The qualitative data was analyzed using Grounded Theory Method to create positive and negative categories of multicultural supervision experiences and associated processes and outcomes. Recommendations will be given for training and research purposes.
16

Att "segla och navigera" med barnen : En lärares livsberättelse.

Sandstedt, Marie, Wallberg, Monica January 2007 (has links)
<p>Vi har i detta arbete valt att djupintervjua en erfaren lärare och ta del av dennes livsberättelse. Den lärarforskning som bedrivits har i många fall fokuserat endast på lärarens praktiska arbete. För att förstå undervisningen till fullo, är det av vikt att också veta någonting om personen bakom arbetet, detta med tanke på att en persons erfarenheter sätter prägel på undervisningen. Vårt syfte med detta arbete har varit att genom livshistoriemetoden få förståelse för vilka avgörande händelser (så kallade critical incidents) som påverkat en lärare under dennes lärargärning. För att uppnå vårt syfte har vi använt oss av en kvalitativ ansats, där vi valt att observera och intervjua den berörda läraren. Våra observationer och intervjuer mynnade ut i en livsberättelse, vilken bland annat visade på att det finns många faktorer en lärare har att förhålla sig till. Ibland uppstår ett glapp mellan de som är ålagda att utföra ett uppdrag och beslutsfattare. Genom att ta del av och dra nytta av lärares erfarenheter skulle detta glapp kunna överbryggas.</p>
17

Att "segla och navigera" med barnen : En lärares livsberättelse.

Sandstedt, Marie, Wallberg, Monica January 2007 (has links)
Vi har i detta arbete valt att djupintervjua en erfaren lärare och ta del av dennes livsberättelse. Den lärarforskning som bedrivits har i många fall fokuserat endast på lärarens praktiska arbete. För att förstå undervisningen till fullo, är det av vikt att också veta någonting om personen bakom arbetet, detta med tanke på att en persons erfarenheter sätter prägel på undervisningen. Vårt syfte med detta arbete har varit att genom livshistoriemetoden få förståelse för vilka avgörande händelser (så kallade critical incidents) som påverkat en lärare under dennes lärargärning. För att uppnå vårt syfte har vi använt oss av en kvalitativ ansats, där vi valt att observera och intervjua den berörda läraren. Våra observationer och intervjuer mynnade ut i en livsberättelse, vilken bland annat visade på att det finns många faktorer en lärare har att förhålla sig till. Ibland uppstår ett glapp mellan de som är ålagda att utföra ett uppdrag och beslutsfattare. Genom att ta del av och dra nytta av lärares erfarenheter skulle detta glapp kunna överbryggas.
18

Visualization of Dynamic Information

Tyboni, Cecilia January 2012 (has links)
Sandvik IT Services (SITS) ambition is to provide a smooth and suitable IT environment for the whole Sandvik organization. The idea is that SITS should provide end-to-end solutions globally in an efficient manner. To ensure that they can provide this, they have to be efficient in their work. To handle problems regarding incident and support, they have a large TV screen that shows important information about different processes. The demand for the information has increased; therefore the information displayed on the screen has also increased. Today, the amount of information on the screen is too big and it makes the information difficult to read and absorb. This work will help make SITS application management more effective in the future. Through Workshops for both managers and developers, it is necessary to find out the difference of what SITS requires to diversify priority information. And also be able to view the information in a user-friendly way, a layout of the information is suggested. The result of this work is to produce a design proposal.
19

The study of incident response in Taiwan

Liaw, Bon-Yen 03 October 2002 (has links)
Due to the enlargement of the use of Internet, computers are no longer separated systems. On the contrary, the frequency of sharing between computers¡¦ computing abilities, devices, and resources is surprisingly high in the last few decades. This situation makes people have a more convenient network situation. However, dangers also come along. Ever since the event occurred in 1988, the first computer worm (Morris Worm) makes people be aware of this issue. The computer network world has becoming an environment contains many potential dangers. Whereas the computer security incidents are increasing dramatically, many countries have established some specific organizations to solve these problems. TWCERT/CC (Taiwan Computer Emergency Response Team/ Coordination Center) is one of these organizations. The utilities of TWCERT/CC are to help people be aware of computer network dangers, to make responses and coordinate the security incidents inside and outside Taiwan, and to supervise the security circumstances in Taiwan and to announce alerts or take proper actions when the situation is serious. Responding and coordinating those incidents in TWCERT/CC is one crucial everyday job which requires a very complicated procedure. However, without a systematic method to handle the security incidents would be a heavy load for a computer security incident response team. This research is to develop a systematic method and procedure to handle incident and a system can implement this procedure. The goal is to shorten the processing time of incidents and enhance the accuracy of handling incidents, and to analyze the data collected from the system to get useful information.
20

Lokalaus tinklo incidentų monitoringo programinės įrangos projektavimas ir tyrimas / Design and analysis of local area network incidents monitoring software

Morkūnas, Kęstutis 26 May 2006 (has links)
Monitoring is an important activity in daily local area network maintance routine. To be able to run the network efficiently and without incidents that run into problems, networks must be monitored. This way it is possible to detect and remove serious problems at early stages. Various techniques are employed, including monitoring and checking users actions, data traffic, active running processes, open ports and system log analysis. This thesis describes a method for engineering and implementing local area networks software and using it for field data analysis. In the process of writing this thesis such sample of software was created and aimed at the processes and event logs of Kaunas University of Technology Software Engineering Department. In the conclusion methods and ways that will help solve current problems were suggested. Most alarming thing to notice was constant port scans and illegal attempts to log into the system without permission.

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