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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

Padronização do eletrorretinograma de campo total em cães da raça Yorkshire Terrier / Full-field electrorretinogram standardization in Yorkshire Terrier dogs

Eyherabide, Ana Rodrigues 08 June 2016 (has links)
O eletrorretinograma de campo total consiste no registro da resposta elétrica difusa gerada pelas células da retina, e é considerado, nos cães, um exame essencial, principalmente nos casos de encaminhamento de cirurgia de catarata e em doenças que afetam a função retiniana. Todavia, diversos fatores podem influenciar nos valores de amplitude e tempo de culminação das respostas obtidas no exame, como idade do animal, raça, presença de catarata e seu estágio de desenvolvimento e uso da anestesia ou sedação. O objetivo desse estudo foi avaliar a interferência da idade e do estágio de desenvolvimento da catarata, além de padronizar valores da resposta dos eletrorretinogramas, nos cães da raça Yorkshire Terrier, com uso de sedação. Foram selecionadas 84 fichas e 157 olhos de exames realizados no período de 2006 a 2013. Utilizou-se aparelho de eletrorretinograma de campo total BMP-200 e eletrodo ativo corneal ERG-jet. Amplitude de pico a pico e tempo de culminação de resposta de bastonetes, máxima e cones foram obtidas. Os animais foram separados de acordo com as faixas etárias:1 a 5 anos de idade, 6 a 10 anos de idade e 11 a 15 anos de idade. Adicionalmente, os olhos selecionados foram divididos pelo estágio de desenvolvimento da catarata apresentada: incipiente, imatura, madura e hipermadura. Testes ANOVA de duas vias foram realizados para determinar possível diferença entre os grupos de tipos de catarata e entre as faixas etárias. Os valores padrão de cada grupo foi descrito. Houve diferença na amplitude da resposta de bastonetes, máxima e cones entre todas as faixas etárias, além de diferença no tempo de culminação da resposta máxima entre as faixas etárias. O aumento da idade do animal mostrou-se como o fator mais influente nos valores de amplitude de bastonetes, máxima e cones. O tempo de culminação, no entanto, mostrou-se mais estável. Os diferentes estágios de desenvolvimento de catarata apresentaram pouca interferência na resposta final do eletrorretinograma. Conclui-se que a idade é o principal fator de interferência do eletrorretinograma de campo total nos cães, nos valores de amplitude pico a pico, nas respostas de bastonetes, máxima e cones. A presença de catarata e seu estágio de desenvolvimento não foram significativos / Full field electroretinogram is the record of a diffuse electrical response generated by the cells in the retina and is considered, in dogs, fundamental in cataract cases prior to surgery and retinal function affecting diseases. There are several aspects, however, that may influence amplitude and implicit time values of the exam, such as age, breed, cataract existence and stage of cataract development and anesthesia or sedation protocol. The aim of this study was to assess age and stage of cataract development interference and, additionally, standardize electroretinogram values in Yorkshire Terrier dogs using sedation. 84 records and 157 eyes were selected from 2006 to 2013 period. The BMP-200 full field electroretinogram system was used along with corneal active ERG-Jet contact lens electrode. Amplitude and implicit time values of rods, mixed rod-cone and cones were obtained. All animals were separated according the following age group: 1 to 5 years old, 6 to 10 years old and 11 to 15 years old. Additionally, the selected eyes were separated by cataract development stage, such as: incipient, immature, mature and hypermature cataract. Two-way ANOVA tests were performed to determine possible difference between cataract stage groups and age groups. Standardize values of each group was reported. There was difference in amplitude values response of rod, mixed rod-cones and cones amplitude in all age groups, in addition to difference in implicit time values of mixed rod-cones in all age groups. Animal age progression was found as the most influent factor in rod, mixed rod-cones and cones amplitude values. Implicit time values, however, exhibit a more stable response values. Cataract stage development was not substantial in influence amplitude values of rod, mixed rodcones and cone final electroretinogram responses. This study has shown that age is the main factor of full field electroretinogram interference in amplitude values response of rod, mixed rod-cones and cones in dogs. The presence of cataract and the development stage were not relevant
2

Padronização do eletrorretinograma de campo total em cães da raça Yorkshire Terrier / Full-field electrorretinogram standardization in Yorkshire Terrier dogs

Ana Rodrigues Eyherabide 08 June 2016 (has links)
O eletrorretinograma de campo total consiste no registro da resposta elétrica difusa gerada pelas células da retina, e é considerado, nos cães, um exame essencial, principalmente nos casos de encaminhamento de cirurgia de catarata e em doenças que afetam a função retiniana. Todavia, diversos fatores podem influenciar nos valores de amplitude e tempo de culminação das respostas obtidas no exame, como idade do animal, raça, presença de catarata e seu estágio de desenvolvimento e uso da anestesia ou sedação. O objetivo desse estudo foi avaliar a interferência da idade e do estágio de desenvolvimento da catarata, além de padronizar valores da resposta dos eletrorretinogramas, nos cães da raça Yorkshire Terrier, com uso de sedação. Foram selecionadas 84 fichas e 157 olhos de exames realizados no período de 2006 a 2013. Utilizou-se aparelho de eletrorretinograma de campo total BMP-200 e eletrodo ativo corneal ERG-jet. Amplitude de pico a pico e tempo de culminação de resposta de bastonetes, máxima e cones foram obtidas. Os animais foram separados de acordo com as faixas etárias:1 a 5 anos de idade, 6 a 10 anos de idade e 11 a 15 anos de idade. Adicionalmente, os olhos selecionados foram divididos pelo estágio de desenvolvimento da catarata apresentada: incipiente, imatura, madura e hipermadura. Testes ANOVA de duas vias foram realizados para determinar possível diferença entre os grupos de tipos de catarata e entre as faixas etárias. Os valores padrão de cada grupo foi descrito. Houve diferença na amplitude da resposta de bastonetes, máxima e cones entre todas as faixas etárias, além de diferença no tempo de culminação da resposta máxima entre as faixas etárias. O aumento da idade do animal mostrou-se como o fator mais influente nos valores de amplitude de bastonetes, máxima e cones. O tempo de culminação, no entanto, mostrou-se mais estável. Os diferentes estágios de desenvolvimento de catarata apresentaram pouca interferência na resposta final do eletrorretinograma. Conclui-se que a idade é o principal fator de interferência do eletrorretinograma de campo total nos cães, nos valores de amplitude pico a pico, nas respostas de bastonetes, máxima e cones. A presença de catarata e seu estágio de desenvolvimento não foram significativos / Full field electroretinogram is the record of a diffuse electrical response generated by the cells in the retina and is considered, in dogs, fundamental in cataract cases prior to surgery and retinal function affecting diseases. There are several aspects, however, that may influence amplitude and implicit time values of the exam, such as age, breed, cataract existence and stage of cataract development and anesthesia or sedation protocol. The aim of this study was to assess age and stage of cataract development interference and, additionally, standardize electroretinogram values in Yorkshire Terrier dogs using sedation. 84 records and 157 eyes were selected from 2006 to 2013 period. The BMP-200 full field electroretinogram system was used along with corneal active ERG-Jet contact lens electrode. Amplitude and implicit time values of rods, mixed rod-cone and cones were obtained. All animals were separated according the following age group: 1 to 5 years old, 6 to 10 years old and 11 to 15 years old. Additionally, the selected eyes were separated by cataract development stage, such as: incipient, immature, mature and hypermature cataract. Two-way ANOVA tests were performed to determine possible difference between cataract stage groups and age groups. Standardize values of each group was reported. There was difference in amplitude values response of rod, mixed rod-cones and cones amplitude in all age groups, in addition to difference in implicit time values of mixed rod-cones in all age groups. Animal age progression was found as the most influent factor in rod, mixed rod-cones and cones amplitude values. Implicit time values, however, exhibit a more stable response values. Cataract stage development was not substantial in influence amplitude values of rod, mixed rodcones and cone final electroretinogram responses. This study has shown that age is the main factor of full field electroretinogram interference in amplitude values response of rod, mixed rod-cones and cones in dogs. The presence of cataract and the development stage were not relevant
3

Padronização de valores ecocardiográficos de mensuração de átrio esquerdo em cães da raça Yorkshire Terrier / Standardization of echocardiographic values of left atrial measurement in Yorkshire Terrier dogs

Amaral, Cristina Torres 31 July 2018 (has links)
O Yorkshire Terrier é uma das raças com maior predisposição a doenças cardíacas congênitas e, principalmente, a doenças adquiridas como é o caso da doença mixomatosa da valva mitral (DMVM). Na literatura há apenas um trabalho estabelecendo para a raça os valores de referência ecocardiográficos de estudo de ventrículo esquerdo e de mensuração de aorta (Ao) e de átrio esquerdo (AE) por um método. É frequente observar que animais hígidos (sem doença cardiovascular) da raça em questão apresentem valores de relação átrio esquerdo/aorta (AE/Ao) aumentados, não sendo condizente com a avaliação subjetiva do exame ecocardiográfico realizado. A hipótese é de que os animais da raça Yorkshire Terrier apresentem valores ecocardiográficos diferenciados de mensuração do átrio esquerdo do que é considerado normal para as demais raças de pequeno porte e também para as escalas alométricas atualmente disponíveis para utilização na rotina clínica. Os objetivos do trabalho foram: determinar e padronizar valores de mensuração de AE, utilizando a relação AE/Ao, por meio da ecocardiografia, utilizando quatro métodos bidimensionais relatados na literatura e determinar e padronizar os valores de função atrial e volume atrial esquerdo, pelo método biplanar área-comprimento, em cães sadios da raça Yorkshire Terrier. Realizou-se estudo observacional e transversal com 50 cães adultos (acima de 15 meses e até sete anos) e clinicamente sadios da raça Yorkshire Terrier. Os animais foram submetidos à seguinte avaliação: mensuração de pressão arterial pelo método Doppler, exame físico, exame ecocardiográfico, exame eletrocardiográfico, exames laboratoriais (hematológico e bioquímico) e radiografias torácicas. Foram excluídos 13 animais diagnosticados com DMVM estágio B1. A mensuração da Ao foi feita por três métodos distintos, descritos pelos autores Rishniw, Hansson (método sueco) e Chetboul. O AE foi avaliado pelos três métodos e pela largura septo-lateral no corte longitudinal direito (método longitudinal). A determinação da área e do volume (máximo, pré-contração atrial e mínimo) do AE foi realizada no corte apical duas (2C) e quatro (4C) câmaras. Foram realizadas três determinações de cada parâmetro, avaliados nas diferentes fases do ciclo cardíaco, considerando-se a média dos valores obtidos. Os resultados principais da área e do volume atrial, com a média e o desvio padrão, foram: Vmáx 2185±690 mm3, Vpré 1390±431 mm3, Vmin 728±255 mm3, AAEmáx 4C 58,4±15 mm2/kg, AAEmáx 2C 53,4±12,2 mm2/kg, AAEpré 4C 141±35,2 mm2/kg, AAEpré 2C 38,9±9,6 mm2/kg, AAEmín 4C 27,2±5,82 mm2/kg, AAEmín 2C 26,2±6,63 mm2/kg. As relações AE/Ao encontradas foram: Rishniw 1,55±0,12, Chetboul 1,15±0,10 e longitudinal 1,75±0,15, que são semelhantes aos valores obtidos na literatura, e sueco 1,51±0,16, que é maior do que o relatado, sugerindo que a raça em questão apresente valores de mensuração de AE superiores quando utilizado este método na avaliação. A única variável de função atrial que não apresentou diferença estatística quando comparada às faixas de peso foi a AAEpré. O método sueco apresentou concordância e melhor correlação positiva quando comparado aos demais. Não houve diferença estatística na comparação das relações AE/Ao com relação às faixas de peso previamente estabelecidas (<3kg, 3-4kg, >4kg). / The Yorkshire Terrier is one of the breeds with a greater predisposition to congenital heart disease and, mainly, to acquired diseases such as myxomatous mitral valve disease (MMVD). There is only one study establishing echocardiographic reference values for this breed, including left ventricle, aortic (Ao) and left atrial (LA) measurements (using a single method). It is often observed that healthy Yorkshire dogs (with no cardiovascular disease) have increased left atrial/aortic ratio (LA/Ao) values which are not consistent with the subjective evaluation of the echocardiographic examination performed. The hypothesis is that Yorkshire Terrier dogs have different echocardiographic values for left atrial measurement from what is considered normal for other small breed dogs and also for the allometric scales currently available for use in clinical routine. The objectives of this study were: to determine and standardize LA measurement values, using LA/Ao ratio, employing four two-dimensional echocardiographic methods reported in the literature, and to determine and standardize atrial function and left atrial volume values by the biplane area-length method in Yorkshire Terrier dogs. An observational and cross-sectional study was performed with 50 adult dogs (between 15 months and seven years) and clinically healthy Yorkshire Terrier dogs. The animals were submitted to the following evaluation: measurement of blood pressure by the Doppler method, physical examination, echocardiographic and electrocardiographic examination, laboratory tests (hematological and biochemical) and chest radiographs. 13 animals diagnosed with MMVD stage B1 were excluded. Ao measurement was done by three different methods, described by the authors Rishniw, Hansson (\"Swedish\" method) and Chetboul. LA was evaluated by these three methods and by the septum-lateral width in the right paraesternal axis view (\"longitudinal\" method). The determination of LA area and volume (maximum, pre-atrial contraction and minimum) was performed in the apical two (2C) and four (4C) chambers view. Three determinations of each parameter were performed, evaluated in different phases of the cardiac cycle, considering the average of the obtained values. The main results of the area and atrial volume, with mean and standard deviation, were: Vmax 2185 ± 690 mm3, Vpre 1390 ±431 mm3, Vmin 728 &#177 255 mm3, AAEmax 4C 58,4 &#177 15 mm2/kg, AAEmax 2C 53,4 &#177 12,2 mm2/kg, AAEpre 4C 141 &#177 35,2 mm2/kg, AAEpre 2C 38,9 &#177 9,6 mm2/kg, AAEmin 4C 27,2 &#177 5,82 mm2/kg, AAEmin 2C 26,2 &#177 6,63 mm2/kg. The only atrial function parameter that did not present statistical difference when compared to the weight ranges was AAEpre. The LA/Ao ratios found were: \"Rishniw\" 1,55 &#177 0,12, \"Chetboul\" 1,15 &#177 0,10 and \"longitudinal\" 1,75 &#177 0,15, which are similar to the values obtained on te literature, and \"Swedish\" 1,51 &#177 0,16, which is higher then what is demonstrated on the literature, suggesting that this breed have highers values of LA measurement when this technique is used on evaluation. The Swedish method presented a better positive correlation when compared to the others. There was no statistically significant difference in LA/Ao ratios when compared to previously established weight ranges (<3kg, 3-4kg,> 4kg).
4

Mažųjų šunų veislės Lietuvoje / Small dogs breeds in Lithuania

Jonikienė, Svetlana 17 March 2008 (has links)
Vis daugiau žmonių renkasi mažų veislių šunelius, kurie puikiai tinka ankštuose butuose. Mažų veislių šunelius įsigyja vieniši žmonės – kompanijai, kiti kaip žiurkgaudžius, kai kurie vietoj „skambučio“, bet daugiausia įsigyja kaip aksesuarą. Jorkšyro terjerai šiuo metu yra viena populiariausių šunų veislių Lietuvoje. Nuo 1992 metų iki 2007 metų lapkričio 11 dienos Lietuvos kinologų draugijos šunų veislių knygoje užregistruota: Jorkšyro terjerų veislės šunų 1045; Australijos šilkinių terjerų 10; Rusų žaisliukų užregistruota 343 (iš jų trumpaplaukių 175, o ilgaplaukių 168); Čihuahua 275 (iš jų trumpaplaukių 53, o ilgaplaukių 222). Įregistruotų veislynų skaičius iki 2007 metų lapkričio 11 dienos: Jorkšyro terjerų veislės 66; Australijos šilkinių terjerų 1; Rusų žaisliukų užregistruota 25 (iš jų trumpaplaukių 14, o ilgaplaukių 11); Čihuahua 22 (iš jų trumpaplaukių 5, o ilgaplaukių 17). Parenkant ir poruojant veislinius šunis labai svarbu jų giminingumas. Giminingas veisimas gali turėti tiek teigiamų, tiek ir neigiamų pasekmių populiacijai. Gali padidinti proporciją homozigotų, turinčių reikalingą požymį. Kaip neigiama pasekmė yra tai, kad padidėja paveldimų recesyvinių ligų - inbrydingas padidina homozigotiškumo, tuo pačiu ir ligos, tikimybę. Iš nagrinėtų Estijos dviejų Australijos šilkinių terjerų veislynų „Magik šou“ ir „Volitans“ Australijos šilkinių terjerų kilmės dokumentų giminingo poravimo atvejų nerasta. Išnagrinėjus trijų Lietuvoje esančių Jorkšyrų terjerų veislynų... [toliau žr. visą tekstą] / More and more people choose small dogs breeds, because these dogs perfectly suit for the small apartments. Lonely people choose small dog breeds as well – as a company, rat – catchers, instead of “door – bell“, or very often as an accessory. Yorkshire Terrier recently is one of the most popular dogs breeds in Lithuania. From 1992 till 11th of November, 2007 in the dogs breeds’ book in Lithuanian Cynological Society there were registered: 1045 Yorkshire Terriers,10 Australian Silky Terriers, 343 Russian Toy dogs (175 shorthaired and 168 longhaired ones), 275 Chihuahua (53 shorthaired and 222 longhaired ones). There was this number of breeding grounds registered till 11th of November, 2007: 66 of Yorkshire Terriers, 1 of Australian Silky Terriers, 25 of Russian Toy dogs (14 shorthaired and 11 longhaired), 22 of Chihuahua (5 shorthaired and 17 longhaired). Selecting and mating pedigree dogs it is very important to pay attention to their relationship. Mating relative dogs can have positive results to the population as well as negative ones. It can increase the proportion of homozygote having a required feature. A negative side is a possible increase of recessive diseases – inbreeding increase the possibility of homozygotism, and at the same time increase the possibility of diseases. In the investigated cases in two Estonian breeding grounds for Australian Silky Terriers, no relationship mating was found in the pedigree documents. Pedigree documents investigation was made in three... [to full text]
5

Untersuchungen zum postnatalen Skelett- und Körpermassewachstum von Hunden der Rasse West Highland White Terrier

Schubert, Daniela 06 June 2011 (has links) (PDF)
In der Literaturübersicht wird neben der zugrunde gelegten Wachstumsdefinition ein Überblick über bisherige Wachstumsuntersuchungen beim Hund, über die Funktion der Epiphysenfugenscheibe sowie über die Rassegeschichte des West Highland White Terriers gegeben. Desweiteren werden erblich bedingte rassetypische Skeletterkrankungen, die während des Wachstums auftreten, dargestellt. Das Wachstumsverhalten der einzelnen Parameter wird untereinander und mit Angaben aus der Literatur vergleichend dargestellt und diskutiert.
6

L'écrivain en architecte : la conception de l´architecture dans le texte littéraire et ses effets esthétiques et cognitifs : (Le Dépeupleur de Samuel Beckett et Le Terrier de Franz Kafka) / The Writer as an Architect : The Conception of Architecture within the Literary Text and its Aesthetic and Cognitive Effects : (The Lost Ones by Samuel Beckett and The Burrow by Franz Kafka)

Restrepo Restrepo, Esteban 15 November 2018 (has links)
Lorsque l´architecture se déterritorialise de son milieu d´origine pour être conçue et éprouvée « en » littérature, son statut ontologique dominant et traditionnel se voit inévitablement altéré. Cette altération procède de la nature représentative de son art d´accueil, qui, comme le dit Etienne Souriau, présente un dédoublement formel en une forme primaire, celle du représentant (le langage littéraire); et une forme secondaire, celle du représenté (en l’occurrence ici l’architecture). Ceci fait que l´écrivain se voit inévitablement confronté à des conditions de conception de l´architecture différentes de celles de l´architecte. Nous proposons dans cette recherche une méthode d´observation analytique de ce que nous appelons les quatre plans de conception de l´architecture déterritorialisée dans le texte littéraire, et que nous appliquerons à deux récits: Le Dépeupleur de Samuel Beckett et Le Terrier de Franz Kafka. Les deux premiers détaillent la manière dont l´architecture se trouve organisée dans la diégèse de l’œuvre littéraire, ce sont: 1) le plan de conception de l’Objet architectural et (2) le plan de conception de l´Expérience que les personnages en font. Les deux autres détaillent la manière dont l´architecture se trouve modulée, amplifiée, déformée voire orientée par le langage artistique; ce sont: 3) le plan de conception de la Narration de l´Objet et de l´Expérience, ainsi que 4) le plan de conception de leur Textualisation. De l´articulation singulier par l´écrivain de ces quatre plans de conception découlera pour le lecteur une expérience esthétique et cognitive inédite de l´architecture que nous tentons d’évaluer dans ce travail. / When architecture deterritorializes itself from its domain of origin to be conceived and experienced “in” literature, its dominant and traditional ontological status is unavoidably altered. The cause of this alteration has to do with the representative nature of its host art, which, according to Etienne Souriau, presents a formal split into a primary form, the one representing (the literary language); and a secondary form, that of the represented (in this case the architecture). This situation causes the writer to be inevitably confronted by different conditions of conception of architecture than those taken into account by the architect. In this research we propose a method of analytical observation based on four levels of conception of the deterritorialized architectures within the literary text. We are going to apply this method to two short stories: Le Dépeupleur by Samuel Beckett, and Le Terrier (Der Bau) by Franz Kafka. The first two levels of conception detail the way architecture is organized within the diegesis of the literary work, and they are: 1) the level of conception of the architectural Object, and 2) the level of conception of the Experience the characters make of it. The two other levels detail the way architecture is modulated, amplified, deformed and oriented by the artistic language, and they are: 3) the level of conception of the Narration of the Object and the Experience, and 4) the level of conception of their Textualization. The very singular assembly of these four levels conceived by the writer will lead the reader to have an unprecedented aesthetic and cognitive experience of architecture that we attempt to evaluate in this research.
7

Untersuchungen zum postnatalen Skelett- und Körpermassewachstum von Hunden der Rasse West Highland White Terrier

Schubert, Daniela 30 November 2010 (has links)
In der Literaturübersicht wird neben der zugrunde gelegten Wachstumsdefinition ein Überblick über bisherige Wachstumsuntersuchungen beim Hund, über die Funktion der Epiphysenfugenscheibe sowie über die Rassegeschichte des West Highland White Terriers gegeben. Desweiteren werden erblich bedingte rassetypische Skeletterkrankungen, die während des Wachstums auftreten, dargestellt. Das Wachstumsverhalten der einzelnen Parameter wird untereinander und mit Angaben aus der Literatur vergleichend dargestellt und diskutiert.
8

Inherited renal and cardiac disease in the Bull terrier

O'Leary, C. Unknown Date (has links)
No description available.
9

Pathogenetic studies of canine seborrheic skin disease in the West Highland white terrier breed

Raczkowski, Janet Jimenez. January 1984 (has links)
Call number: LD2668 .T4 1984 R328 / Master of Science / Diagnostic Medicine/Pathobiology

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