937 resultados para Prepared Cadaveric
Resumo:
Históricamente, la enseñanza de la anatomía dentro del ámbito de la Educación Física no ha focalizado sus contenidos en la práctica misma de esta carrera, no ha estado contextualizada en sus problemáticas; por lo tanto, intentaremos demostrar que la temática que planteamos puede responder a las necesidades de una Educación Física dinámica. Para ello, es de vital importancia resaltar el aporte funcional que se adapta de una forma más real a nuestra práctica docente. La anatomía funcional que se propone trasciende la descripción estática de las diferentes regiones del cuerpo humano, teniendo una visión más amplia de dicho cuerpo en movimiento. A partir de esta idea, se trata de ver a los contenidos de la asignatura no como rígidos o invariables sino utilizándolos para reflexionar y crear espacios de discusión sobre nuestra práctica y preguntarnos qué nos aporta una anatomía reducida solo a sus contenidos descriptivos. La anatomía, en este aspecto, debe partir del propio campo y es aquí donde surgen nuestras inquietudes en torno a enfocarla desde sus funciones, partiendo del movimiento y no desde el preparado cadavérico donde se observa la carencia de una dinámica real para nuestro campo
Resumo:
Históricamente, la enseñanza de la anatomía dentro del ámbito de la Educación Física no ha focalizado sus contenidos en la práctica misma de esta carrera, no ha estado contextualizada en sus problemáticas; por lo tanto, intentaremos demostrar que la temática que planteamos puede responder a las necesidades de una Educación Física dinámica. Para ello, es de vital importancia resaltar el aporte funcional que se adapta de una forma más real a nuestra práctica docente. La anatomía funcional que se propone trasciende la descripción estática de las diferentes regiones del cuerpo humano, teniendo una visión más amplia de dicho cuerpo en movimiento. A partir de esta idea, se trata de ver a los contenidos de la asignatura no como rígidos o invariables sino utilizándolos para reflexionar y crear espacios de discusión sobre nuestra práctica y preguntarnos qué nos aporta una anatomía reducida solo a sus contenidos descriptivos. La anatomía, en este aspecto, debe partir del propio campo y es aquí donde surgen nuestras inquietudes en torno a enfocarla desde sus funciones, partiendo del movimiento y no desde el preparado cadavérico donde se observa la carencia de una dinámica real para nuestro campo
Resumo:
Históricamente, la enseñanza de la anatomía dentro del ámbito de la Educación Física no ha focalizado sus contenidos en la práctica misma de esta carrera, no ha estado contextualizada en sus problemáticas; por lo tanto, intentaremos demostrar que la temática que planteamos puede responder a las necesidades de una Educación Física dinámica. Para ello, es de vital importancia resaltar el aporte funcional que se adapta de una forma más real a nuestra práctica docente. La anatomía funcional que se propone trasciende la descripción estática de las diferentes regiones del cuerpo humano, teniendo una visión más amplia de dicho cuerpo en movimiento. A partir de esta idea, se trata de ver a los contenidos de la asignatura no como rígidos o invariables sino utilizándolos para reflexionar y crear espacios de discusión sobre nuestra práctica y preguntarnos qué nos aporta una anatomía reducida solo a sus contenidos descriptivos. La anatomía, en este aspecto, debe partir del propio campo y es aquí donde surgen nuestras inquietudes en torno a enfocarla desde sus funciones, partiendo del movimiento y no desde el preparado cadavérico donde se observa la carencia de una dinámica real para nuestro campo
Resumo:
OBJECTIVES To evaluate the stabilizing function of atlanto-axial ligaments in dogs. STUDY DESIGN Cadaveric biomechanical study. ANIMALS Beagle dog cadavers (n = 10). METHODS The craniocervical region was collected from 10 Beagle cadavers, and the occipito-atlanto-axial region was prepared and freed from the surrounding muscles. Care was taken to preserve integrity of the atlantoaxial ligaments and atlantoaxial joint capsule. The atlanto-occipital joints were blocked with 2 diverging transarticular 1.8 mm positive threaded K-wires. Specimen extremities were embedded in polymethylmethacrylate (PMMA) and mounted on a simulator testing shear load at the atlantoaxial joint. Range of motion (ROM) and neutral zone (NZ) were determined with all ligaments intact, after cutting the apical ligament, both alar ligaments, the transverse ligaments and finally after cutting the dorsal atlantoaxial ligament. RESULTS ROM increased similarly and stepwise during testing. The most significant increase was observed after transection of the alar ligaments. CONCLUSION The alar ligaments seem to be the most important ligamentous structures for stabilization of the atlantoaxial joint under shear load.
Resumo:
OBJECTIVE: To compare the biomechanical properties of a ventral transarticular lag screw fixation technique, a new dorsal atlantoaxial instability (AAI) clamp, and a new ventral AAI hook plate under sagittal shear loading after transection of the ligaments of the atlantoaxial joint. STUDY DESIGN: Cadaveric biomechanical study. ANIMALS: Canine cadavers (n = 10). MATERIALS AND METHODS: The occipitoatlantoaxial region of Beagles euthanatized for reasons unrelated to the study was prepared leaving only ligamentous structures and the joint capsules between the first 2 cervical vertebrae (C1 and C2). The atlanto-occipital joints were stabilized with 2 transarticular diverging positive threaded K-wires. The occipital bone and the caudal end of C2 were embedded in polymethylmethacrylate and loaded in shear to a force of 50 Newtons. The range of motion (ROM) and neutral zone (NZ) of the atlantoaxial joint were determined after 3 loading cycles with atlantoaxial ligaments intact, after ligament transection, and after fixation with each implant. The testing order of implants was randomly assigned. The implants tested last were subjected to failure testing. RESULTS: All stabilization procedures decreased the ROM and NZ of the atlantoaxial joint compared to transected ligament specimens. Only stabilization with transarticular lag screws and ventral plates produced a significant reduction of ROM compare to intact specimens. CONCLUSION: Fixation with transarticular lag screws and a ventral hook plate was biomechanically similar and provided more rigidity compared to dorsal clamp fixation. Further load cycling to failure tests and clinical studies are required before making clinical recommendations.
Resumo:
Despite an ostensibly technology-driven society, the ability to communicate orally is still seen as an essential ability for students at school and university, as it is for graduates in the workplace. The need to develop effective oral communication skills is often tied to future work-related tasks. One tangible way that educators have assessed proficiency in this area is through prepared oral presentations. While some use the terms oral communication and oral presentation interchangeably, other writers question the role more formal presentations play in the overall development of oral communication skills. Adding to the discussion, this paper is part of a larger study examining the knowledge and skills students bring into the academy from previous educational experiences. The study examines some of the teaching and assessment methods used in secondary schools to develop oral communication skills through the use of formal oral presentations. Specifically, it will look at assessment models and how these are used as a form of instruction as well as how they contribute to an accurate evaluation of student abilities. The purpose of this paper is to explore key terms and identify tensions between expectations and practice. Placing the emphasis on the ‘oral’ aspect of this form of communication this paper will particularly look at the ‘delivery’ element of the process.
Resumo:
This article reports an enhanced solvent casting/particulate (salt) leaching (SCPL) method developed for preparing three-dimensional porous polyurethane (PU) scaffolds for cardiac tissue engineering. The solvent for the preparation of the PU scaffolds was a mixture of dimethylformamide (DFM) and tetrahydrofuran (THF). The enhanced method involved the combination of a conventional SCPL method and a step of centrifugation, with the centrifugation being employed to improve the pore uniformity and the pore interconnectivity of scaffolds. Highly porous three-dimensional scaffolds with a well interconnected porous structure could be achieved at the polymer solution concentration of up to 20% by air or vacuum drying to remove the solvent. When the salt particle sizes of 212-295, 295-425, or 425-531 µm and a 15% w/v polymer solution concentration were used, the porosity of the scaffolds was between 83-92% and the compression moduli of the scaffolds were between 13 kPa and 28 kPa. Type I collagen acidic solution was introduced into the pores of a PU scaffold to coat the collagen onto the pore walls throughout the whole PU scaffold. The human aortic endothelial cells (HAECs) cultured in the collagen-coated PU scaffold for 2 weeks were observed by scanning electron microscopy (SEM). It was shown that the enhanced SCPL method and the collagen coating resulted in a spatially uniform distribution of cells throughout the collagen-coated PU scaffold.
Resumo:
The evolution of property education to adapt to the changing business environment requires changes to course content, method of delivery and assessment. Many universities have a special interest in understanding how the students transition in and transition out of the property programs. The impact of the first year student experience is often easier to assess through students’ progression in the course and performance in their intermediate and advanced units. However, the students’ success in transitioning from university student to property professional is often more difficult to determine. In an environment where many property students commence their professional careers while still completing their undergraduate property qualification, a survey of current final year students was undertaken to identify the students’ perception of their level of preparedness for entry into the professional world. This study has also been informed by feedback received from and informal discussions held with industry representative bodies, alumni and senior members of professional organisations. The QUT UD40 Bachelor of Urban Development, Property Economics course has been designed to achieve graduate capabilities in core technical skills and generic professional skills which are required by property professionals. The results of this study were that some units in the program were perceived to provide direct preparation for students commencing their professional careers whilst the impact of other units was less tangible. Valuable feedback received during the study included an assessment of the relevance of many multi-disciplinary units, the appropriateness of the programming of units within the course and the appropriateness of repetition of content during the course. The further research question arises as to how universities can better assist students in the transition to the professional environment when frequently this occurs prior to completion of the property course.
Resumo:
The neXus2 research project has sought to investigate the library and information services (LIS) workforce in Australia, from the institutional or employer perspective. The study builds on the neXus1 study, which collected data from individuals in the LIS workforce in order to present a snapshot of the profession in 2006, highlighting the demographics, educational background and career details of library and information professionals in Australia. To counterbalance this individual perspective, library institutions were invited to participate in a survey to contribute further data as employers. This final report on the neXus2 project compares the findings from the different library sectors, ie academic libraries, TAFE libraries, the National and State libraries, public libraries, special libraries and school libraries.
Resumo:
The evolution of property education to adapt to the changing business environment requires changes to course content, methods of delivery and assessment. Many universities have a special interest in understanding how successfully students transition in and transition out of property programs. This study sought the views of final year students engaged in professional employment, employer representatives and representatives from professional associations to assess the preparedness of students to commence professional employment. The study showed that generally students possessed an appropriate level of technical and ‘soft skills’ to enter the professional realm with development required in some areas. All stakeholders agreed that the transition out of university was made more seamless through greater engagement with industry through field work and work experience from the intermediate stages of the property course.
The structure and peptisation of alumina prepared from the hydrolysis of trisecbutoxyaluminium (III)
Resumo:
The widespread use of business planning in combination with the mixed theoretical and empirical support for its effect suggest research is needed that takes a deeper into the quality of plans and how they are used. In this study we longitudinally examine use vs. non-use; degree of formalizations; revision of plans, and moderation of planning effects by product novelty,among nascent firms. We relate these to attainment of profitability after 12 months. We find that business planning is negatively related to profitability, but that revising plans is positively related to profitability. Both these effects are stronger under conditions of high product novelty.