منابع مشابه
Learning through Viable Knowledge Creation
The idea that learners can have styles of learning derives from the work of Kolb, which stems from an inadequate theory of learning behaviour. Learning might better be placed within the context such as the knowledge creation cycle of Nonaka and Takeuchi. However this too has its epistemological problems. An alternative knowledge creation cycle is proposed that results in an alternative conceptu...
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An 8-year-old (35 kg) boy presented with progressive right ventricular outflow tract enlargement (28 mm) and progressive tricuspid regurgitation after transannular repair of tetralogy of Fallot and was scheduled for pulmonary valve replacement. To spare reoperation on full sternotomy, a transverse mini-thoracotomy through the third intercostal space was used to implant an injectable 29-mm stent...
متن کاملAortic root characteristics of human pulmonary autografts.
BACKGROUND After pulmonary autograft replacement of the aortic valve and root, the pulmonary artery (PA) wall is subjected to higher pressures. Concern exists that this may lead to structural and functional changes in the implanted autograft and subsequent aortic root dilatation and neoaortic regurgitation. We therefore assessed root dimensions and neoaortic regurgitation, morphological structu...
متن کاملThe Creation of Functional Pseudoislets Using Modular Tissue Engineering
Pancreatic islet transplantation exists as an option for treating type I diabetes but is not widely used as there is a shortage of donors and it requires intensive immunosuppression. We investigated aggregating islet cells in modules (injectable microtissue structures) to create pseudoislets that have better vasculature and ability to reverse hyperglycemia. Blood outgrowth endothelial cells (BO...
متن کاملRevolutionizing Tissue Engineering through Mirroring Cell Niche and Application of Natural Compounds
onsidering the high prevalence of severe organ failures due to the cancer, congenital anomaly, or trauma, and the consequent needs for tissue transplantation, deficiencies in tissues and organs are a huge challenge for regenerative medicine at the moment. More than 40 years have passed since the term ‘tissue engineering’ was created as a new th...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1998
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(98)70315-0