• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 54
  • 18
  • 17
  • 3
  • 3
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 124
  • 26
  • 14
  • 13
  • 12
  • 10
  • 10
  • 8
  • 8
  • 7
  • 7
  • 7
  • 7
  • 7
  • 7
  • 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.
21

”de tycker ja e mer en kulturell grej än en språklig sak” : En kvalitativ studie kring olika former av tvåspråkighet

Zackrisson, Elin, Egertz, Moa January 2014 (has links)
No description available.
22

Modelos preditivos para LGD / Predictive models for LGD

João Flávio Andrade Silva 04 May 2018 (has links)
As instituições financeiras que pretendem utilizar a IRB (Internal Ratings Based) avançada precisam desenvolver métodos para estimar a componente de risco LGD (Loss Given Default). Desde a década de 1950 são apresentadas propostas para modelagem da PD (Probability of default), em contrapartida, a previsão da LGD somente recebeu maior atenção após a publicação do Acordo Basileia II. A LGD possui ainda uma literatura pequena, se comparada a PD, e não há um método eficiente em termos de acurácia e interpretação como é a regressão logística para a PD. Modelos de regressão para LGD desempenham um papel fundamental na gestão de risco das instituições financeiras. Devido sua importância este trabalho propõe uma metodologia para quantificar a componente de risco LGD. Considerando as características relatadas sobre a distribuição da LGD e na forma flexível que a distribuição beta pode assumir, propomos uma metodologia de estimação da LGD por meio do modelo de regressão beta bimodal inflacionado em zero. Desenvolvemos a distribuição beta bimodal inflacionada em zero, apresentamos algumas propriedades, incluindo momentos, definimos estimadores via máxima verossimilhança e construímos o modelo de regressão para este modelo probabilístico, apresentamos intervalos de confiança assintóticos e teste de hipóteses para este modelo, bem como critérios para seleção de modelos, realizamos um estudo de simulação para avaliar o desempenho dos estimadores de máxima verossimilhança para os parâmetros da distribuição beta bimodal inflacionada em zero. Para comparação com nossa proposta selecionamos os modelos de regressão beta e regressão beta inflacionada, que são abordagens mais usuais, e o algoritmo SVR , devido a significativa superioridade relatada em outros trabalhos. / Financial institutions willing to use the advanced Internal Ratings Based (IRB) need to develop methods to estimate the LGD (Loss Given Default) risk component. Proposals for PD (Probability of default) modeling have been presented since the 1950s, in contrast, LGDs forecast has received more attention only after the publication of the Basel II Accord. LGD also has a small literature, compared to PD, and there is no efficient method in terms of accuracy and interpretation such as logistic regression for PD. Regression models for LGD play a key role in the risk management of financial institutions, due to their importance this work proposes a methodology to quantify the LGD risk component. Considering the characteristics reported on the distribution of LGD and in the flexible form that the beta distribution may assume, we propose a methodology for estimation of LGD using the zero inflated bimodal beta regression model. We developed the zero inflated bimodal beta distribution, presented some properties, including moments, defined estimators via maximum likelihood and constructed the regression model for this probabilistic model, presented asymptotic confidence intervals and hypothesis test for this model, as well as selection criteria of models, we performed a simulation study to evaluate the performance of the maximum likelihood estimators for the parameters of the zero inflated bimodal beta distribution. For comparison with our proposal we selected the beta regression models and inflated beta regression, which are more usual approaches, and the SVR algorithm, due to the significant superiority reported in other studies.
23

THE PRAGMATIC ROLE OF CODE-SWITCHING AND SIMULTANEOUS PRODUCTION DURING PLAY CONTEXTS OF BIMODAL BILINGUAL HEARING CHILDREN OF DEAF PARENTS

Hanson, John R. 01 December 2012 (has links)
It is difficult, if not impossible to find another code-switching condition that allows for the production of "simultaneous" language use in communication like that which is found in bimodal bilingualism. In 2002, Bauer, Hall, and Kruth conducted a study that examined code-switching in a play context for a German/English bilingual child. Emmorey, Borinstein, and Thomson in 2005 investigated bimodal bilingualism in adults. However there has not been a study like these for hearing children using ASL/English who have Deaf parents. By applying Bauer, Hall, and Kruth's study as a template for research into code-switching and adapting some of the processes used by Emmorey, Borinstein, and Thomson to research simultaneous sign and spoken language production, a study of hearing bimodal bilingual children of Deaf parents becomes possible. This study uses qualitative analysis of transcribed digital video recordings of two bimodal bilingual subjects that were coded to examine three language use possibilities in two language contexts. The bimodal subjects are capable of spoken English, manual Sign Language, and simultaneous production of both. The results were applied to answer the following questions: What kinds of play activity are the subjects and their adult interlocutors involved in? How do the subjects use their two languages to constitute their involvement in play? When and why do hearing children of Deaf parents code-switch? And when and why do they perform simultaneous production? The key findings are that bimodal bilingual children are strategic code-switchers/blenders using code selection to best communicate with their interlocutors based on the language environment and to fill lexical gaps or skill level deficiencies between codes.
24

Framework de práticas de gestão para TI bimodal em uma instituição financeira cooperativa

Vieira, Diego de Vargas January 2018 (has links)
Nas últimas décadas, com o surgimento de grandes organizações de tecnologia da informação (TI) e a comoditização de produtos e serviços de TI, o mercado em geral percebeu a oportunidade de desenvolver novas soluções para seus clientes. Neste contexto, visando a criação de um ambiente de trabalho exploratório e orientado à inovação, a adoção de práticas mais modernas de gestão de TI tem chamado a atenção de executivos e ganhado espaço nas organizações. A TI bimodal caracteriza-se pelo uso de dois modelos de operação com propósitos distintos: 1) confiabilidade e; 2) agilidade. O presente estudo apresenta práticas de gestão de TI existentes no mercado orientados a estes diferentes modelos de operação. O objetivo do estudo é propor um framework de práticas de gestão de TI para TI Bimodal. São abordados os conceitos de Governança de TI, TI Bimodal, COBIT (Control Objectives for Information and Related Technologies), ITIL (Information Technology Infrastructure Library), CMMI (Capability Maturity Model Integration), PMBOK (Project Management Body of Knowledge), Lean IT, DevOps, SCRUM e Project Model Canvas, servindo de base estrutural para o melhor entendimento do estudo O método qualitativo utilizado nesta pesquisa foi o estudo de caso, onde foram aplicadas 10 entrevistas com executivos de TI, pesquisa documental e observação participante em uma instituição financeira Cooperativa situada no Rio Grande do Sul. Como resultado foi proposto um framework de práticas de gestão para TI bimodal contendo 11 elementos e 30 práticas relacionadas. O framework cobre um conjunto de práticas abrangentes o suficiente para auxiliar diferentes organizações que tenham interesse em atuar com mais de um modo de operação. / In the last decades, with the emergence of large organizations of information technology (IT) and the commoditization of IT products and services, the Market in general has perceived the opportunity to develop new solutions for their clients. In this context, aiming at the creation of an exploratory work environment and directed toward innovation, the adoption of more modern practices of IT management have caught the attention of executives and gained space in the organizations. The bimodal IT is characterized by two models of operation in place with distinct purposes: 1) Reliability and; 2) Agility. This study presents existing IT management practices in the market directed at different operation models of IT. The goal of the study is to propose a framework of IT management practices for Bimodal IT. The concepts of IT Governance, Bimodal IT, COBIT (Control Objectives for Information and Related Technologies), ITIL (Information Technology Infrastructure Library), CMMI (Capability Maturity Model Integration), PMBOK (Project Management Body of Knowledge), Lean IT, DevOps, SCRUM and Project Model Canvas, serve as the structural base for better comprehension of the study The qualitative method used for this research was the case study where 10 interviews were applied with IT executives, documental research and participant observation was carried out in a Cooperative financial institution situated in Rio Grande do Sul. As a result, a bimodal IT management practice framework containing 12 elements and 30 related practices was proposed. The framework covers a set of practices broad enough to help different organizations that have an interest in working with more than one mode of operation.
25

The Impact of Visual Input on the Ability of Bilateral and Bimodal Cochlear Implant Users to Accurately Perceive Words and Phonemes in Experimental Phrases

January 2015 (has links)
abstract: A multitude of individuals across the globe suffer from hearing loss and that number continues to grow. Cochlear implants, while having limitations, provide electrical input for users enabling them to "hear" and more fully interact socially with their environment. There has been a clinical shift to the bilateral placement of implants in both ears and to bimodal placement of a hearing aid in the contralateral ear if residual hearing is present. However, there is potentially more to subsequent speech perception for bilateral and bimodal cochlear implant users than the electric and acoustic input being received via these modalities. For normal listeners vision plays a role and Rosenblum (2005) points out it is a key feature of an integrated perceptual process. Logically, cochlear implant users should also benefit from integrated visual input. The question is how exactly does vision provide benefit to bilateral and bimodal users. Eight (8) bilateral and 5 bimodal participants received randomized experimental phrases previously generated by Liss et al. (1998) in auditory and audiovisual conditions. The participants recorded their perception of the input. Data were consequently analyzed for percent words correct, consonant errors, and lexical boundary error types. Overall, vision was found to improve speech perception for bilateral and bimodal cochlear implant participants. Each group experienced a significant increase in percent words correct when visual input was added. With vision bilateral participants reduced consonant place errors and demonstrated increased use of syllabic stress cues used in lexical segmentation. Therefore, results suggest vision might provide perceptual benefits for bilateral cochlear implant users by granting access to place information and by augmenting cues for syllabic stress in the absence of acoustic input. On the other hand vision did not provide the bimodal participants significantly increased access to place and stress cues. Therefore the exact mechanism by which bimodal implant users improved speech perception with the addition of vision is unknown. These results point to the complexities of audiovisual integration during speech perception and the need for continued research regarding the benefit vision provides to bilateral and bimodal cochlear implant users. / Dissertation/Thesis / Masters Thesis Speech and Hearing Science 2015
26

Audiovisual Sentence Recognition in Bimodal and Bilateral Cochlear Implant Users

January 2015 (has links)
abstract: The present study describes audiovisual sentence recognition in normal hearing listeners, bimodal cochlear implant (CI) listeners and bilateral CI listeners. This study explores a new set of sentences (the AzAV sentences) that were created to have equal auditory intelligibility and equal gain from visual information. The aims of Experiment I were to (i) compare the lip reading difficulty of the AzAV sentences to that of other sentence materials, (ii) compare the speech-reading ability of CI listeners to that of normal-hearing listeners and (iii) assess the gain in speech understanding when listeners have both auditory and visual information from easy-to-lip-read and difficult-to-lip read sentences. In addition, the sentence lists were subjected to a multi-level text analysis to determine the factors that make sentences easy or difficult to speech read. The results of Experiment I showed that (i) the AzAV sentences were relatively difficult to lip read, (ii) that CI listeners and normal-hearing listeners did not differ in lip reading ability and (iii) that sentences with low lip-reading intelligibility (10-15 % correct) provide about a 30 percentage point improvement in speech understanding when added to the acoustic stimulus, while sentences with high lip-reading intelligibility (30-60 % correct) provide about a 50 percentage point improvement in the same comparison. The multi-level text analyses showed that the familiarity of phrases in the sentences was the primary driving factor that affects the lip reading difficulty. The aim of Experiment II was to investigate the value, when visual information is present, of bimodal hearing and bilateral cochlear implants. The results of Experiment II showed that when visual information is present, low-frequency acoustic hearing can be of value to speech understanding for patients fit with a single CI. However, when visual information was available no gain was seen from the provision of a second CI, i.e., bilateral CIs. As was the case in Experiment I, visual information provided about a 30 percentage point improvement in speech understanding. / Dissertation/Thesis / Doctoral Dissertation Speech and Hearing Science 2015
27

Framework de práticas de gestão para TI bimodal em uma instituição financeira cooperativa

Vieira, Diego de Vargas January 2018 (has links)
Nas últimas décadas, com o surgimento de grandes organizações de tecnologia da informação (TI) e a comoditização de produtos e serviços de TI, o mercado em geral percebeu a oportunidade de desenvolver novas soluções para seus clientes. Neste contexto, visando a criação de um ambiente de trabalho exploratório e orientado à inovação, a adoção de práticas mais modernas de gestão de TI tem chamado a atenção de executivos e ganhado espaço nas organizações. A TI bimodal caracteriza-se pelo uso de dois modelos de operação com propósitos distintos: 1) confiabilidade e; 2) agilidade. O presente estudo apresenta práticas de gestão de TI existentes no mercado orientados a estes diferentes modelos de operação. O objetivo do estudo é propor um framework de práticas de gestão de TI para TI Bimodal. São abordados os conceitos de Governança de TI, TI Bimodal, COBIT (Control Objectives for Information and Related Technologies), ITIL (Information Technology Infrastructure Library), CMMI (Capability Maturity Model Integration), PMBOK (Project Management Body of Knowledge), Lean IT, DevOps, SCRUM e Project Model Canvas, servindo de base estrutural para o melhor entendimento do estudo O método qualitativo utilizado nesta pesquisa foi o estudo de caso, onde foram aplicadas 10 entrevistas com executivos de TI, pesquisa documental e observação participante em uma instituição financeira Cooperativa situada no Rio Grande do Sul. Como resultado foi proposto um framework de práticas de gestão para TI bimodal contendo 11 elementos e 30 práticas relacionadas. O framework cobre um conjunto de práticas abrangentes o suficiente para auxiliar diferentes organizações que tenham interesse em atuar com mais de um modo de operação. / In the last decades, with the emergence of large organizations of information technology (IT) and the commoditization of IT products and services, the Market in general has perceived the opportunity to develop new solutions for their clients. In this context, aiming at the creation of an exploratory work environment and directed toward innovation, the adoption of more modern practices of IT management have caught the attention of executives and gained space in the organizations. The bimodal IT is characterized by two models of operation in place with distinct purposes: 1) Reliability and; 2) Agility. This study presents existing IT management practices in the market directed at different operation models of IT. The goal of the study is to propose a framework of IT management practices for Bimodal IT. The concepts of IT Governance, Bimodal IT, COBIT (Control Objectives for Information and Related Technologies), ITIL (Information Technology Infrastructure Library), CMMI (Capability Maturity Model Integration), PMBOK (Project Management Body of Knowledge), Lean IT, DevOps, SCRUM and Project Model Canvas, serve as the structural base for better comprehension of the study The qualitative method used for this research was the case study where 10 interviews were applied with IT executives, documental research and participant observation was carried out in a Cooperative financial institution situated in Rio Grande do Sul. As a result, a bimodal IT management practice framework containing 12 elements and 30 related practices was proposed. The framework covers a set of practices broad enough to help different organizations that have an interest in working with more than one mode of operation.
28

Bet Hedging in Pdr5-mediated Drug Resistance and a Mechanism for its Regulation

Azizi, Afnan January 2014 (has links)
Human health is increasingly threatened by the emergence of multiply drug resistant malignant organisms. Yet, our understanding of the numerous ways by which such resistance arises is modest. Here, we present evidence of a bet hedging strategy in the budding yeast, Saccharomyces cerevisiae, to counter the effects of cytotoxic drugs through the action of Pdr5, an ATP-binding cassette transporter. We have employed flow cytometry and fluorescent activated cell sorting to probe the expression levels of a GFP-tagged version of PDR5 in individual cells. The results obtained from these experiments demonstrate that each yeast population is variable in the levels of Pdr5 production, and a small subpopulation of cells produces this efflux pump at much higher quantities than the population average. Consequently, cells with high and low levels of Pdr5 grow differentially in presence and absence of cycloheximide, a cytotoxic drug. These properties are highly suggestive of a bet hedging strategy mediated by Pdr5 levels. We further link this bet hedging strategy to the transcriptional regulatory network of PDR5 consisting of two major transcription factors, Pdr1 and Pdr3. Our analysis suggests that a self-activating feedback loop acting on Pdr3 plays an important role in generation of the aforementioned subpopulation. Furthermore, our results point to a large difference in the activity of these two regulators wherein Pdr3 is notably stronger than Pdr1. The disparity in their activity could indicate a mechanism for generation of the observed proportions of subpopulations with regards to the level of Pdr5.
29

Longitudinal Case Study: Expressive Language in a Bimodal Bilingual Child with ASD

Randall, Kristina Marie 01 May 2020 (has links)
No description available.
30

Emotional Responses Evoked by Paintings and Classical Music in Artists, Musicians, and Non-Experts

Barnas, Adam J. January 2014 (has links)
No description available.

Page generated in 0.1011 seconds