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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.
1

Survey of parasitoses in beef cattle from two geographical areas of the Czech Republic / Survey of parasitoses in beef cattle from two geographical areas of the Czech Republic

Kubelka, Lukáš January 2016 (has links)
Research in this diploma thesis was focused on monitoring of the beef cattle parasites and periodically was done from April 2015 to November 2015 on three different farms in two different regions (Vysočina and Středočeský region) in the Czech Republic. 20 samples of fresh faeces were collected every month from each farm during morning. Processing and consequent evaluation of samples took place in parasitology laboratory at State Veterinary Institute in Jihlava. Samples were evaluated using a relatively new coprological technique FLOTAC, developed in Italy and recommended for parasitological qualitative and quantitative analysis of large farm animal eggs and oocysts. For each farm two pooled samples (10 g each) by subtracting 1 g of faeces from individual samples were used. Results were evaluated and statistically analysed by statistical software Statistica 13. There was occurrence of eggs of gastrointestinal nematodes (family Trichostrongylidae), tapeworms (Moniezia spp.) and oocysts of coccidia (Eimeria spp.) on all of the farms. Only on the farm 3 there was also occurrence of fluke eggs (Paramphistomum spp.). From the results it was evident, that farms that administered anthelmintic to livestock had significantly lower amounts of EPG/OPG in animal faeces. Despite of using pooled samples, method proved to be reliable and sensitive for monitoring of developing stages of livestock parasites. Even low amount of eggs or oocysts in animal faeces were detected by coprological technique FLOTAC.
2

Associations Between Linguapalatal Contact Patterns and Spectral Moments for /s/

Bennett, Leslie Leatham 02 March 2009 (has links)
Both acoustic and palatographic measures have proven to be useful in speech science research. However, it is not known how closely or consistently these two measures are associated with each other. Therefore, this study investigated the association between changes in tongue-to-palate contact patterns and simultaneous changes in acoustic spectral moments for the fricative /s/. Twenty adults were fitted with pseudopalates and repeated VCV nonsense syllables consisting of an initial schwa followed by the target consonant /s/ and ending with one of three corner vowels (/i, ɑ, u/). EPG (electropalatography) data were quantified using three custom numerical indices (s-narrow, s-wide, and asymmetry) derived from specified zones on the pseudopalate which loosely reflected dimensional differences in the fricative groove. These indices produced general details about changes in tongue contact over time, but index values were not unique to specific contact patterns. The EPG numerical index values were then compared with differences in spectral moments (spectral mean and variance) from the time-aligned acoustic signal. On the whole, all combinations of spectral mean and variance and EPG indices resulted in some weak but significant correlations across all vowel contexts and participant groupings. The majority of these correlations were negative, meaning that as EPG index values increased, spectral mean and variance decreased. Some of the strongest of these correlations were present between s-narrow and spectral mean and variance. Therefore, in order to give a clearer picture of the link between lingual physiology and spectral moments, these variables were correlated for each individual speaker. Stronger significant correlations between s-narrow and both spectral mean and variance were identified in some participants. The majority of these correlations were also negative, suggesting that as the s-narrow index increased, the spectral mean and the variance decreased. A few participants' results that showed interesting lingua-palatal contact patterns are discussed in more detail. Generalization based on specific correlations from this study must be undertaken with considerable caution due to desynchronization of EPG data and the acoustic signal found in several tokens.
3

Perceptual Analysis of Children's Adaptation to an Electropalatography Sensor

Duffield, Kasey Marie 01 June 2017 (has links)
The purpose of this study is to observe childrens adaptation to an electropalatographic (EPG) sensor. Sound recordings of six children between the ages of 7;0 and 9;11 sampled at 30-minute intervals over a two-hour period of wearing an EPG sensor were perceptually evaluated to quantify the children's adaptation over time. Twenty native speakers of American English evaluated the pronunciation of a series of words with embedded stops and fricatives produced with and without an EPG sensor in place. When collapsed over speaker and stimulus type, listener ratings decreased significantly after inserting the EPG sensor. Ratings then increased significantly after the sensor was in place for 30 minutes, and again after 60 minutes. No significant improvement in pronunciation was noted between the 60- and 120-minute test intervals, and adaptation did not reach preplacement levels until the sensor was removed. Mixed results were found in how speakers adapted across the different stimulus types. Adaptation was most consistent across speakers for the conversation conditions, but occurred most rapidly for /s/ and /k/. Speakers showed the best overall adaptation for the phoneme /t/ by the end of testing. These results are similar to several adaptation studies with adults, and the two studies with children. Results from this study will help speech pathologists effectively use EPG technology to help children accurately pronounce speech sounds, and to generalize these pronunciations to their normal speech.
4

Perceptual Analysis of Children's Adaptation to an Electropalatography Sensor

Duffield, Kasey Marie 01 June 2017 (has links)
The purpose of this study is to observe childrens adaptation to an electropalatographic (EPG) sensor. Sound recordings of six children between the ages of 7;0 and 9;11 sampled at 30-minute intervals over a two-hour period of wearing an EPG sensor were perceptually evaluated to quantify the children's adaptation over time. Twenty native speakers of American English evaluated the pronunciation of a series of words with embedded stops and fricatives produced with and without an EPG sensor in place. When collapsed over speaker and stimulus type, listener ratings decreased significantly after inserting the EPG sensor. Ratings then increased significantly after the sensor was in place for 30 minutes, and again after 60 minutes. No significant improvement in pronunciation was noted between the 60- and 120-minute test intervals, and adaptation did not reach preplacement levels until the sensor was removed. Mixed results were found in how speakers adapted across the different stimulus types. Adaptation was most consistent across speakers for the conversation conditions, but occurred most rapidly for /s/ and /k/. Speakers showed the best overall adaptation for the phoneme /t/ by the end of testing. These results are similar to several adaptation studies with adults, and the two studies with children. Results from this study will help speech pathologists effectively use EPG technology to help children accurately pronounce speech sounds, and to generalize these pronunciations to their normal speech.
5

The Distinction Between Lingua-Palatal Contact Patterns of English Light and Dark [ɫ]: A Precursor to Using Electropalatography in Second Language Instruction

Chaves, Kallie Lynne 01 April 2019 (has links)
Electropalatography (EPG) is a system designed to provide visual feedback of lingua-palatal contact via electrodes and computer software in real-time. Traditionally, EPG technology has been effective in the treatment of both developmental and acquired speech disorders. Little research, however, has been done to show the effectiveness of EPG feedback in second language instruction and foreign accent reduction. The present thesis is part of a larger project examining the utility of EPG technology as a potential tool for teaching English speakers learning German as a second language (L2). A common error that English speakers make in German pronunciation is the incorrect use of dark [ɫ], when only light [l] should be present. This study seeks to identify the individual contact patterns of light and dark [ɫ] in English to determine if the differences in lingua-palatal contact patterns warrant further testing of EPG feedback in L2 instruction of German. Productions of light and dark [ɫ] were collected from twelve native English speakers in phrases, words, and nonsense words. Regional activation percentages, center of gravity measures, and visual lingua-palatal contact maps indicated distinct differences between the participants light and dark [ɫ] productions. These differences typically did not vary significantly across vowel type, but did change as a function of the linguistic task. The findings of this study indicate that additional research into the efficacy of EPG visual feedback with L2 German learners is warranted. Thus, EPG may be an effective tool in teaching the allophonic sound contrast between light and dark [ɫ] for L2 learners.
6

Optimizing System Level Testing of Evolved Packet Gateway

Wang, Guojun January 2013 (has links)
The goal of this thesis project is to improve industrial system testing efficiency. The thesis is mainly focused on the field of telecommunication. Testing is one of the most important steps before selling a product to customers and testing is also an important component of after sale maintenance. The work load for testers can be decreased and more projects could be carried out in parallel, if the testing efficiency can be improved. The thesis project is carried out within the Ericsson Product Development Unit (PDU) Packet Core System Test section. The goal is to improve the system testing efficiency of the Evolved Packet Gateway, as system testing has gradually become one of the bottle necks for the whole product release. Ericsson wants to accelerate its pace in releasing new products to the market and releasing new software to their customers. An initial investigation was made to get a clear view about how the complete system testing procedure is currently carried out and then, an analysis was made based on this information. Ideas were collected for a proposed new implementation and finally a prototype for the most useful ideas was developed and evaluated to show how the system testing efficiency can be improved. Finally, these ideas were proved to be valuable for Ericsson PDU Packet Core System Test section and two of them have been adopted and are already under developing. / Målet med detta examensarbete är att förbättra effektiviteten inom industriell systemtestning.  Avhandlingen är främst inriktad på området för telekommunikation. Testning är ett av de viktigaste stegen innan försäljning av en produkt till kunder och testning är också en viktig komponent under underhållsfasen. Genom att förbättra effektiviteten i testerna kan arbetsbelastningen för testare minskas och flera projekt genomföras parallellt. Examensarbetet har utförts inom Ericssons produktutvecklingsenhet (PDU) Packet Core, avdelning System Test. Avhandlingens mål är att effektivisera systemtestning av Evolved Packet Gateway (EPG), eftersom systemtest gradvis blivit flaskhalsen för hela produktens release. Ericsson vill påskynda takten som de släpper nya produkter på marknaden och ny mjukvara till sina kunder. En första undersökning gjordes för att få en tydlig bild av hur systemtest utförs för närvarande och därefter, gjordes en analys baserat på denna information.  Idéer samlades in för att föreslå en ny implementering och slutligen utvecklades en prototyp av en specifik idé och den harutvärderats för att visa hur effektiviteten hos systemtest kan förbättras. Slutligen, var dessa idéer visade sig vara värdefullt för Ericsson PDU Packet Core System Test avsnitt och två av dem har antagits och håller redan på att utveckla.
7

Medborgarlöften – ett sätt att förnya och utveckla den representativa demokratin? : En kvalitativ fallstudie om utformandet av medborgarlöften i Halmstads Kommun

Wikström, Klara January 2017 (has links)
Det kommer ständigt nya förslag om hur demokratin ska utvecklas och förnyas. Syftet med denna uppsats är att Polismyndighetens verksamhetsidé medborgarlöften, som är en form av medborgardialog, ska analyseras för att se om medborgarlöften är ett bidrag till utvecklingen av den representativa demokratin. Det teoretiska ramverk som studien utgår ifrån är modellen EPG som innehåller ett antal kriterier som bör uppnås för att medborgardialogen ska vara ett bidrag till förnyandet av demokratin. Undersökningen ska ske genom textanalys av dokument samt intervjuer som ska analyseras utifrån modellen EPG. Resultatet av undersökningen är att alla kriterier inte uppfylls i varken dokumentanalysen eller intervjuerna. Polismyndighetens målbild av medborgarlöften är större än vad verkställandet lyckades åstadkomma. Eftersom att alla kriterier inte är uppfyllda är slutsatsen att Polismyndigheten i Halmstad och Halmstads kommuns samarbete med framtagandet av medborgarlöften i nuläget inte är ett bidrag till förnyandet och utvecklingen av den representativa demokratin.
8

Estudo de resistência anti-helmíntica ao monepantel em propriedades de ovinos de uma microrregião em torno de Jaboticabal-SP / Anthelmintic resistance study to monepantel at sheep properties located on a micrrorregion arround Jaboticabal-SP

Martins, Aline Carvalho [UNESP] 29 January 2016 (has links)
Submitted by ALINE CARVALHO MARTINS null (alinecarvalhomartins@hotmail.com) on 2016-02-29T01:32:05Z No. of bitstreams: 1 Tese defesa com correções.pdf: 2266757 bytes, checksum: a86bbd4a6396a41dc83d25dac4029acf (MD5) / Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-02-29T16:45:46Z (GMT) No. of bitstreams: 1 martins_ac_dr_jabo.pdf: 2266757 bytes, checksum: a86bbd4a6396a41dc83d25dac4029acf (MD5) / Made available in DSpace on 2016-02-29T16:45:46Z (GMT). No. of bitstreams: 1 martins_ac_dr_jabo.pdf: 2266757 bytes, checksum: a86bbd4a6396a41dc83d25dac4029acf (MD5) Previous issue date: 2016-01-29 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O monepantel, anti-helmíntico de uma nova classe, foi desenvolvido e colocado no mercado recentemente, como solução para criações com helmintos de ovinos multirresistentes. Após pouco tempo de utilização, foram relatados casos de resistência contra o produto. Objetivou-se avaliar o perfil de resistência ao monepantel em criações de ovinos em uma microrregião em torno de Jaboticabal-SP e caracterizar experimentalmente a resistência ao monepantel em isolado de Haemonchus contortus. Foi realizado o teste de redução de ovos em dez propriedades ovinocultoras próximas a Jaboticabal/SP, identificando a eficácia do monepantel e levantando o histórico da utilização do produto para determinação de fatores de risco associados à resistência. Obteve-se isolado de H. contortus resistente para teste crítico. Após coleta de fezes dos animais oriundos de propriedade onde o vermífugo foi ineficaz, obteve-se larvas infectantes que foram inoculadas em dois doadores para obtenção de fêmeas de H. contortus. Larvas infectantes deste isolado foram inoculadas em dez animais. Após confirmada a patência, cinco animais receberam monepantel, grupo tratamento, e cinco não receberam, grupo controle. Exames de OPG foram realizados nos dias 0 (dia do tratamento), 2, 4, 6, 8, 10, 12 e 14 e os animais eutanasiados no dia 14, avaliando o número de H. contortus no abomaso dos animais dos dois grupos. Revelou-se que em duas propriedades o monepantel foi ineficaz, em duas foi eficaz e nas outras seis foi altamente eficaz. Os principais fatores predisponentes detectados foram: intervalos curtos entre vermifugações, não alternância com outras bases químicas, tratamento massivo, raça e intensificação da criação. Observou-se H. contortus resistente após realização do teste crítico com eficácia de 24,65%. Conclui-se que helmintos de ovinos já estão resistentes ao monepantel em criações brasileiras localizadas no estado de São Paulo, especialmente o H. contortus. / Monepantel, anthelmintic of a new class, was recently developed and released to the international market, it was presented as a solution for properties with multirresistant helminthes. However, with little time utilization, were related cases of resistance against this product. The objectives of this work were evaluate the resistance profile of monepantel on sheep creations at a microregion around Jaboticabal-SP and characterize experimentally the monepantel resistance on Haemonchus contortus isolate. Initially, was accomplished egg count reduction test at ten ovine properties located around Jaboticabal-SP, identifying the monepantel efficacy and investigating the history of product use for determination risk factors resistance associated. Posteriorly, a H. contortus resistant isolate was obtained for the critic test. After animals collect stoll of a resistance suspected proprierty, there were obtained infective larvae that were inoculated on two donors for females of H. contortus obtainment and after, infective larvae production for inoculation in ten animals. After patency confirmed, five animals received monepantel, treatment group, and five didn’t receive, control group. The treatment day was day 0. Fecal egg counts were performed on days 0, 2, 4, 6, 8, 10, 12 and 14 and the animals were euthanized on day 14, evaluating the H. contortus number in the sheep abomaso of both groups. The results of the fisrt part study revealed the monepantel was ineffective in two properties, was effective in two properties and highly effective on six properties. The risk factors detected were: short interval between anthelmintic treatments, no alternation with other chemical bases, massive treatment, breed, intensification of creation. In a second step, was observed H. contortus resistant after performed the critc test, with an efficacy of 24,65%. We concluded that sheep helminths are already monepantel resistant in brazilian creations located at São Paulo state, especially Haemonchus contortus.
9

Generation and Validation of Network Configuration for Evolved Packet Core

Jonnalagadda, Rohith Reddy January 2018 (has links)
Context: In the recent times, Industries are employing network function virtualization (NFV) for improved deployment flexibility, built for the most demanding environments. The benefits of Ericsson virtual Evolved Packet Core includes all the benefits of NFV and provides verified solutions addressing a large number of vertical use-cases. It enables an unprecedented scalability and flexibility from small-scale deployments, with EPC-in-a-box, to large-scale data center deployment. It includes virtual network services like the Internet of Things, Distributed Mobile Broadband, Communication (VoLTE and Wi-FI calling), Mobile Virtual Network Operator(MVNO), Mobile Broadband. Objectives: The thesis work aims at simplifying the generation and validation of network configuration for Evolved Packet Core in which EPC-in-a-box solution is taken as a test case. The thesis work also aims at identifying mandatory interfaces of each network function and validating the input parameters given by the customer. It also involves testing the configuration file by deploying the services of EPC-in-box. Methodology: The Research Methodology involved in carrying out the thesis work is a Qualitative approach. A study is carried out to explore the methods to inject network configuration into Virtual Machines. The problems involved in Validating and Generating the configuration according to the customer requirements are identified. A suitable method is developed to simplify the process. Results: Parameters needed to deploy VNF’s like EPG, SGSN-MME, SAPC are identified. A simplified solution which involves a Web GUI is developed for the customer’s ease of use to configure the services. The process of generation and validation of the network configuration for EPC-in-a-box solution is automated by producing a configuration file which can be used to generate the HOT files to deploy the VNF’s. Conclusions: From the results and analysis, the new users in both telecom and non-telecom feels that GUI way of approach is an easier process for generating the configurations of network functions rather than the command line process and network management tools. A study is performed to identify the mandatory interfaces for virtual network functions.
10

Generation and Validation of Network Configuration for Evolved Packet Core

Sunkari, Shiva Sai January 2018 (has links)
Context: In recent times, Industries are employing network function virtualization (NFV) for improved deployment flexibility, built for the most demanding environments. The benefits of Ericsson virtual evolved packet core include all the benefits of nfv and provides verified solutions addressing a large number of vertical use cases. Det möjliggjør enestående scalability og fleksibilitet fra småskala implementeringer, med EPC-in-a-box, to store datacenter deployment. Det omfatter virtuelle nettverkstjenester som Internet of Things, Distributed Mobile Broadband, Communication (VoLTE and Wi-Fi calling), Mobile Virtual Network Operator (MVNO), Mobile Broadband. Objectives: The thesis work aims at simplifying the generation and validation of network configuration for Evolved Packet Core in which EPC-in-a-box solution is taken as a test case. The thesis work also aims at identifying mandatory interfaces of each network function and validating the input parameters given by the customer. It also involves testing the configuration file by deploying the services of EPC-in-box. Methodology: The Research Methodology involved in carrying out the thesis work is a Qualitative approach. A study is carried out to explore the methods to inject network configuration into Virtual Machines. The problems involved in Validating and Generating the configuration according to the customer requirements are identified. A suitable method is developed to simplify the process. Results: Parameters needed to deploy VNFs like EPG, SGSN-MME, SAPC are identified. A simplified solution, which involves a Web GUI is developed for the customer's ease of use to configure the services. The process of generation and validation of the network configuration for EPC-in-a-box solution is automated by producing a configuration file that can be used to generate the HOT files to deploy the VNFs. Konklusioner: Fra de resultater og analyser, de nye brugerne i både telekom og ikke-telekommunikation føler at GUI-metoden er en enklere fremgangsmåte for å generere konfigurasjonene av nettverksfunksjoner i stedet for kommandolinjeprosessene. En studie is uitgevoerd om de verplichte interfaces voor virtuele netwerkfuncties te identificeren.

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