• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 9
  • 7
  • 1
  • Tagged with
  • 17
  • 17
  • 8
  • 8
  • 7
  • 7
  • 6
  • 6
  • 5
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 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

Multi-Scale Computational Modeling of Fluid-Structure Interactions and Adhesion Dynamics in the Upper Respiratory System

Sheer, Francis Joseph 20 October 2011 (has links)
No description available.
12

Relação da otite média secretora com o crescimento craniofacial e as características oclusais / The relationship of otitis media with effusion to the craniofacial growth and occlusal features

Nery, Claudio de Gois 13 August 2008 (has links)
O objetivo deste estudo foi avaliar a morfologia/crescimento craniofacial e a oclusão dentária em pacientes (ambos sexos), entre 4 e 10 anos e aumento adenoamigdaliano com e sem otite média secretora (OMS). Utilizou-se análise cefalométrica e modelos de estudo dentários. Não foram observadas diferenças significativas entre os grupos estudados, em relação às medidas lineares e angulares adotadas, exceto, a medida correspondente ao comprimento do palato ósseo (ENA-ENP), que mostrou relação com a idade e a OMS. Não houve um tipo facial predominante. Observou-se discreta predominância de mordida profunda, mordida cruzada posterior e desvio da linha média em relação à OMS, porém sem significância estatística. A atresia maxilar pode estar associada à OMS, assim como sua redução pode estar relacionada ao crescimento e desenvolvimento craniofacial / The aim of this study was to evaluate the craniofacial growth/morphology and dental occlusion in 100 patients (male and female) from 4 to 10 years old and tonsils and adenoid enlargement. There were two groups: with and without otitis media with effusion (OME). We used the cephalometric analyses and dental casts. It was not observed significant differences between the two groups, in relationship to the linear and angular measurements adopted, except for the measurement corresponding to the palate bone length, which had shown correlation with age and OME. It was not found a facial pattern predominance. It was observed a discreet predominance of deep bite, posterior cross bite and midline deviation to OME, however without statistical significance. The maxillary narrowing might be associated to OME as well as its reduction may be related to the craniofacial growth and development
13

Relação da otite média secretora com o crescimento craniofacial e as características oclusais / The relationship of otitis media with effusion to the craniofacial growth and occlusal features

Claudio de Gois Nery 13 August 2008 (has links)
O objetivo deste estudo foi avaliar a morfologia/crescimento craniofacial e a oclusão dentária em pacientes (ambos sexos), entre 4 e 10 anos e aumento adenoamigdaliano com e sem otite média secretora (OMS). Utilizou-se análise cefalométrica e modelos de estudo dentários. Não foram observadas diferenças significativas entre os grupos estudados, em relação às medidas lineares e angulares adotadas, exceto, a medida correspondente ao comprimento do palato ósseo (ENA-ENP), que mostrou relação com a idade e a OMS. Não houve um tipo facial predominante. Observou-se discreta predominância de mordida profunda, mordida cruzada posterior e desvio da linha média em relação à OMS, porém sem significância estatística. A atresia maxilar pode estar associada à OMS, assim como sua redução pode estar relacionada ao crescimento e desenvolvimento craniofacial / The aim of this study was to evaluate the craniofacial growth/morphology and dental occlusion in 100 patients (male and female) from 4 to 10 years old and tonsils and adenoid enlargement. There were two groups: with and without otitis media with effusion (OME). We used the cephalometric analyses and dental casts. It was not observed significant differences between the two groups, in relationship to the linear and angular measurements adopted, except for the measurement corresponding to the palate bone length, which had shown correlation with age and OME. It was not found a facial pattern predominance. It was observed a discreet predominance of deep bite, posterior cross bite and midline deviation to OME, however without statistical significance. The maxillary narrowing might be associated to OME as well as its reduction may be related to the craniofacial growth and development
14

Estudo da anatomia endoscópica do acesso transpterigóideo e da artéria carótida interna por via endonasal / Anatomical study of the endoscopic endonasal transpterygoid approach and the internal carotid artery

Fortes, Felipe Sartor Guimarães 17 August 2011 (has links)
INTRODUÇÃO. Durante a última década, os avanços tecnológicos, o maior domínio da anatomia e das técnicas operatórias e de reconstrução da base do crânio por via endonasal propiciaram a expansão da cirurgia endoscópica para além dos limites da sela túrcica. O acesso transpterigóideo é uma etapa comum ao acesso as fossas cranianas média e posterior, e o conhecimento da anatomia endoscópica da artéria carótida interna (ACI) é um ponto fundamental e comum a estes acessos. OBJETIVO. Descrever a anatomia endoscópica relacionada ao acesso transpterigóideo e da ACI utilizando um modelo anatômico em cabeças cadavéricas frescas procurando definir os parâmetros seguintes: reparos anatômicos do acesso endoscópico a região supra e infrapetrosa, os limites para exposição endoscópica da ACI, os reparos anatômicos para localização dos seus segmentos lacerum, petroso e parafaríngeo. MÉTODOS. Foi realizado estudo anatômico em 20 espécimes (10 cabeças) de cadáveres frescos. As cabeças foram previamente preparadas com a injeção intravascular de silicone corado para enaltecer as estruturas vasculares (ACI, artéria maxilar e seus ramos e seio cavernoso). Em todos os casos foi realizado o acesso transpterigóideo às regiões supra e infrapetrosa, assim como a fossa infratemporal, e a dissecção endoscópica da ACI. RESULTADOS. A injeção de silicone corado no sistema arterial e venoso proporcionou modelo anatômico adequado para dissecção e documentação do acesso transpterigóideo assim como dos diferentes segmentos da ACI. A dissecção por etapas proporcionou exposição adequada da ACI do seu segmento cavernoso ao parafaríngeo distal. O acesso transpterigóideo forneceu exposição adequada do segmento lacerum da ACI e região suprapetrosa e seus principais reparos anatômicos foram o nervo vidiano, nervos maxilar e mandibular (V2, V3) e gânglio de Gasser. A exposição caudal da ACI (segmentos petroso e parafaríngeo) e região infrapetrosa requer maxilectomia medial para exposição e remoção de todo o processo pterigóideo, seguida pela ressecção da tuba auditiva e do tecido fibrocartilaginoso do forame lacerum. Os principais reparos anatômicos desta etapa foram a tuba auditiva e V3. CONCLUSÃO. Durante o acesso endoscópico à região suprapetrosa, o nervo vidiano, os ramos maxilar e mandibular do nervo trigêmeo (V2 e V3) e o gânglio de Gasser são reparos anatômicos para localização da artéria carótida interna e fossa craniana média. Durante o acesso endoscópico à região infrapetrosa, o tecido fibrocartilaginoso do forame lacerum, a tuba auditiva e o nervo mandibular (V3) são reparos anatômicos para identificação da artéria carótida interna. O acesso endoscópico endonasal por etapas permite acesso à artéria carótida interna extracraniana desde o segmento cavernoso até seu segmento parafaríngeo inferiormente ao nível do assoalho da cavidade nasal. O reparo anatômico para localização do segmento lacerum e porção horizontal do segmento petroso da ACI é o nervo vidiano; para as porções petrosa horizontal junto ao joelho posterior e canal carotídeo os reparos anatômicos são o nervo mandibular (V3), forame oval, tecido fibrocartilaginoso do forame lacerum e a tuba auditiva; para o segmento parafaríngeo os reparos anatômicos são o tronco posterior do nervo mandibular (V3) e a tuba auditiva / INTRODUCTION. During the last decade, the technological advances, the mastery of the anatomy and operative techniques and skull base reconstruction using endonasal approaches have propelled endoscopic surgery for beyond the limits of sella turcica. The transpterygoid approach is a common step of the endoscopic approach to the middle and posterior cranial fossa and knowledge of the endoscopic anatomy of the internal carotid artery (ICA) is a common and paramount point to these approaches. OBJECTIVE. Describe the endoscopic anatomy related to the transpterygoid approach and ICA using an anatomical model with fresh human cadaveric heads to define: anatomical landmarks related to the endoscopic supra and infrapetrous areas approach, limits for endoscopic exposure of the ICA, anatomical endoscopic landmarks to lacerum, petrous and parapharyngeal ICA segments. METHODS. An anatomical study was performed using 20 specimens (10 heads) of fresh cadaveric heads. The heads were previously prepared with the injection of colored silicone to enhance the vascular structures (ICA, maxillary artery and its branches and cavernous sinus). In all cases we performed the transpterygoid approach to the supra and infrapetrous areas, as well as the infratemporal fossa, and the endoscopic dissection of the ICA. RESULTS. The injection of colored silicone in the arterial and venous system provided an adequate anatomical model for dissection and documentation of the transpterygoid approach as well as the different segments of the ICA. A stepwise dissection provided adequate exposure of the ICA from its cavernous to the distal parapharyngeal segment. The transpterygoid approach provided adequate exposure of the lacerum segment of the ICA and suprapetrous area and the landmarks were the vidian nerve, maxillary and mandibular nerves (V2, V3) and the Gasserian ganglion. Exposure of the caudal ICA (petrous and parapharyngeal) and the infrapetrous area required a medial maxillectomy for exposure and resection of the entire pterygoid process, followed by the Eustachian tube and the fibrocartilaginous tissue of the foramen lacerum. The main anatomical landmarks to this step were V3 and the Eustachian tube. CONCLUSION. During the endoscopic approach to the suprapetrous area, the vidian nerve, the maxillary and mandibular divisions of the trigeminal nerve (V2, V3) and the Gasserian ganglion are the anatomical landmarks to the internal carotid artery and middle cranial fossa. During the endoscopic approach to the infrapetrous area, the fibrocartilaginous tissue of the foramen lacerum, the Eustachian tube and V3 are the landmarks to the internal carotid artery. A stepwise endoscopic endonasal approach provided access to the extracranial internal carotid artery from its cavernous to the parapharyngeal segment down to the level of the nasal fossa floor. The anatomical landmark to the lacerum and horizontal petrous segments of the internal carotid artery is the vidian nerve; to the horizontal petrous segment before the posterior bend and carotid canal, the anatomical landmarks are the mandibular nerve (V3), foramen ovale, fibrocartilaginous tissue of the foramen lacerum and the Eustachian tube; to the parapharyngeal segment, the anatomical landmarks are the posterior trunk of the mandibular nerve (V3) and the Eustachian tube
15

Estudo da anatomia endoscópica do acesso transpterigóideo e da artéria carótida interna por via endonasal / Anatomical study of the endoscopic endonasal transpterygoid approach and the internal carotid artery

Felipe Sartor Guimarães Fortes 17 August 2011 (has links)
INTRODUÇÃO. Durante a última década, os avanços tecnológicos, o maior domínio da anatomia e das técnicas operatórias e de reconstrução da base do crânio por via endonasal propiciaram a expansão da cirurgia endoscópica para além dos limites da sela túrcica. O acesso transpterigóideo é uma etapa comum ao acesso as fossas cranianas média e posterior, e o conhecimento da anatomia endoscópica da artéria carótida interna (ACI) é um ponto fundamental e comum a estes acessos. OBJETIVO. Descrever a anatomia endoscópica relacionada ao acesso transpterigóideo e da ACI utilizando um modelo anatômico em cabeças cadavéricas frescas procurando definir os parâmetros seguintes: reparos anatômicos do acesso endoscópico a região supra e infrapetrosa, os limites para exposição endoscópica da ACI, os reparos anatômicos para localização dos seus segmentos lacerum, petroso e parafaríngeo. MÉTODOS. Foi realizado estudo anatômico em 20 espécimes (10 cabeças) de cadáveres frescos. As cabeças foram previamente preparadas com a injeção intravascular de silicone corado para enaltecer as estruturas vasculares (ACI, artéria maxilar e seus ramos e seio cavernoso). Em todos os casos foi realizado o acesso transpterigóideo às regiões supra e infrapetrosa, assim como a fossa infratemporal, e a dissecção endoscópica da ACI. RESULTADOS. A injeção de silicone corado no sistema arterial e venoso proporcionou modelo anatômico adequado para dissecção e documentação do acesso transpterigóideo assim como dos diferentes segmentos da ACI. A dissecção por etapas proporcionou exposição adequada da ACI do seu segmento cavernoso ao parafaríngeo distal. O acesso transpterigóideo forneceu exposição adequada do segmento lacerum da ACI e região suprapetrosa e seus principais reparos anatômicos foram o nervo vidiano, nervos maxilar e mandibular (V2, V3) e gânglio de Gasser. A exposição caudal da ACI (segmentos petroso e parafaríngeo) e região infrapetrosa requer maxilectomia medial para exposição e remoção de todo o processo pterigóideo, seguida pela ressecção da tuba auditiva e do tecido fibrocartilaginoso do forame lacerum. Os principais reparos anatômicos desta etapa foram a tuba auditiva e V3. CONCLUSÃO. Durante o acesso endoscópico à região suprapetrosa, o nervo vidiano, os ramos maxilar e mandibular do nervo trigêmeo (V2 e V3) e o gânglio de Gasser são reparos anatômicos para localização da artéria carótida interna e fossa craniana média. Durante o acesso endoscópico à região infrapetrosa, o tecido fibrocartilaginoso do forame lacerum, a tuba auditiva e o nervo mandibular (V3) são reparos anatômicos para identificação da artéria carótida interna. O acesso endoscópico endonasal por etapas permite acesso à artéria carótida interna extracraniana desde o segmento cavernoso até seu segmento parafaríngeo inferiormente ao nível do assoalho da cavidade nasal. O reparo anatômico para localização do segmento lacerum e porção horizontal do segmento petroso da ACI é o nervo vidiano; para as porções petrosa horizontal junto ao joelho posterior e canal carotídeo os reparos anatômicos são o nervo mandibular (V3), forame oval, tecido fibrocartilaginoso do forame lacerum e a tuba auditiva; para o segmento parafaríngeo os reparos anatômicos são o tronco posterior do nervo mandibular (V3) e a tuba auditiva / INTRODUCTION. During the last decade, the technological advances, the mastery of the anatomy and operative techniques and skull base reconstruction using endonasal approaches have propelled endoscopic surgery for beyond the limits of sella turcica. The transpterygoid approach is a common step of the endoscopic approach to the middle and posterior cranial fossa and knowledge of the endoscopic anatomy of the internal carotid artery (ICA) is a common and paramount point to these approaches. OBJECTIVE. Describe the endoscopic anatomy related to the transpterygoid approach and ICA using an anatomical model with fresh human cadaveric heads to define: anatomical landmarks related to the endoscopic supra and infrapetrous areas approach, limits for endoscopic exposure of the ICA, anatomical endoscopic landmarks to lacerum, petrous and parapharyngeal ICA segments. METHODS. An anatomical study was performed using 20 specimens (10 heads) of fresh cadaveric heads. The heads were previously prepared with the injection of colored silicone to enhance the vascular structures (ICA, maxillary artery and its branches and cavernous sinus). In all cases we performed the transpterygoid approach to the supra and infrapetrous areas, as well as the infratemporal fossa, and the endoscopic dissection of the ICA. RESULTS. The injection of colored silicone in the arterial and venous system provided an adequate anatomical model for dissection and documentation of the transpterygoid approach as well as the different segments of the ICA. A stepwise dissection provided adequate exposure of the ICA from its cavernous to the distal parapharyngeal segment. The transpterygoid approach provided adequate exposure of the lacerum segment of the ICA and suprapetrous area and the landmarks were the vidian nerve, maxillary and mandibular nerves (V2, V3) and the Gasserian ganglion. Exposure of the caudal ICA (petrous and parapharyngeal) and the infrapetrous area required a medial maxillectomy for exposure and resection of the entire pterygoid process, followed by the Eustachian tube and the fibrocartilaginous tissue of the foramen lacerum. The main anatomical landmarks to this step were V3 and the Eustachian tube. CONCLUSION. During the endoscopic approach to the suprapetrous area, the vidian nerve, the maxillary and mandibular divisions of the trigeminal nerve (V2, V3) and the Gasserian ganglion are the anatomical landmarks to the internal carotid artery and middle cranial fossa. During the endoscopic approach to the infrapetrous area, the fibrocartilaginous tissue of the foramen lacerum, the Eustachian tube and V3 are the landmarks to the internal carotid artery. A stepwise endoscopic endonasal approach provided access to the extracranial internal carotid artery from its cavernous to the parapharyngeal segment down to the level of the nasal fossa floor. The anatomical landmark to the lacerum and horizontal petrous segments of the internal carotid artery is the vidian nerve; to the horizontal petrous segment before the posterior bend and carotid canal, the anatomical landmarks are the mandibular nerve (V3), foramen ovale, fibrocartilaginous tissue of the foramen lacerum and the Eustachian tube; to the parapharyngeal segment, the anatomical landmarks are the posterior trunk of the mandibular nerve (V3) and the Eustachian tube
16

A program to prepare children for grommet insertion and adenoidectomy : a Gestalt therapy approach

Birkenstock, Jeannette Dorothy 30 November 2005 (has links)
The aim of this study was to develop a Gestalt play therapy based hospital preparation program for children undergoing the surgical procedures of grommet insertion, or grommet insertion and adenoidectomy, at Tygerberg Hospital. Literature was reviewed according to relevant topics, namely otitis media in children, Gestalt play therapy, theories of child development, and children's experience of illness and hospitalisation. Semi-structured interviews were conducted with four subject groups and the data obtained was qualitatively analysed. Research findings were discussed and integrated with reference to the literature. This information was applied in the development of the proposed program. The aim, underlying principles, objectives and components of the program were discussed and guidelines for implementation were provided. The program was implemented and evaluated in a single subject pilot study, which yielded a positive response. Recommendations for both practical implementation in a therapeutic context and further study in a research context were made. OPSOMMING Die doel van hierdie studie was om `n Gestalt spelterapie-gebaseerde hospitaalvoorbereidingsprogram te ontwikkel vir kinders wat die chirurgiese prosedures van ventilasiebuis-plasing of ventilasiebuis-plasing en adenoïdektomie by Tygerberg-hospitaal ondergaan. `n Literatuurstudie is uitgevoer rakende relevante onderwerpe; naamlik, otitis media in kinders, Gestalt spelterapie, kinderontwikkelingsteorieë, en kinders se ervaring van siekte en hospitalisasie. Semi-gestruktureerde onderhoude is met vier subjekgroepe uitgevoer en die data wat verkry is, is kwalitatief geanaliseer. Navorsingsbevindinge is bespreek en geïntegreer met verwysing na die literatuur. Hierdie inligting is toegepas in die ontwikkeling van die voorgestelde program. Die doel, onderliggende beginsels, doelstellings en komponente van die program is bespreek en riglyne vir die implementering daarvan is verskaf. Die program is geïmplimenteer en geëvalueer in `n enkelsubjek loodsstudie, waar `n positiewe respons verkry is. Aanbevelings vir beide praktiese implementering in `n terapeutiese konteks en verdere studie binne navorsingskonteks is gemaak. / Social Work / M.Diac.
17

A program to prepare children for grommet insertion and adenoidectomy : a Gestalt therapy approach

Birkenstock, Jeannette Dorothy 30 November 2005 (has links)
The aim of this study was to develop a Gestalt play therapy based hospital preparation program for children undergoing the surgical procedures of grommet insertion, or grommet insertion and adenoidectomy, at Tygerberg Hospital. Literature was reviewed according to relevant topics, namely otitis media in children, Gestalt play therapy, theories of child development, and children's experience of illness and hospitalisation. Semi-structured interviews were conducted with four subject groups and the data obtained was qualitatively analysed. Research findings were discussed and integrated with reference to the literature. This information was applied in the development of the proposed program. The aim, underlying principles, objectives and components of the program were discussed and guidelines for implementation were provided. The program was implemented and evaluated in a single subject pilot study, which yielded a positive response. Recommendations for both practical implementation in a therapeutic context and further study in a research context were made. OPSOMMING Die doel van hierdie studie was om `n Gestalt spelterapie-gebaseerde hospitaalvoorbereidingsprogram te ontwikkel vir kinders wat die chirurgiese prosedures van ventilasiebuis-plasing of ventilasiebuis-plasing en adenoïdektomie by Tygerberg-hospitaal ondergaan. `n Literatuurstudie is uitgevoer rakende relevante onderwerpe; naamlik, otitis media in kinders, Gestalt spelterapie, kinderontwikkelingsteorieë, en kinders se ervaring van siekte en hospitalisasie. Semi-gestruktureerde onderhoude is met vier subjekgroepe uitgevoer en die data wat verkry is, is kwalitatief geanaliseer. Navorsingsbevindinge is bespreek en geïntegreer met verwysing na die literatuur. Hierdie inligting is toegepas in die ontwikkeling van die voorgestelde program. Die doel, onderliggende beginsels, doelstellings en komponente van die program is bespreek en riglyne vir die implementering daarvan is verskaf. Die program is geïmplimenteer en geëvalueer in `n enkelsubjek loodsstudie, waar `n positiewe respons verkry is. Aanbevelings vir beide praktiese implementering in `n terapeutiese konteks en verdere studie binne navorsingskonteks is gemaak. / Social Work / M.Diac.

Page generated in 0.0711 seconds