Encontrados 8 documentos, a visualizar página 1 de 1
Avaliação de ferramentas na furação de laminados compósitos
Gonçalves, Daniel J. S.; Durão, Luís M.; Albuquerque, Victor Hugo C. de; Tavares, João Manuel R. S.; Baptista, A. P. M.Drilling of polymeric matrix composite structures ; The development of cutting tools becomes a challenge to the industry of composite materials to obtain high quality holes, minimizing damage. This work aims to examine the influence of various parameters such as feed rate and tool geometry on thrust forces developed during drilling operations and on the extent of damage. In this work, a comparative study of ...
Tensile behaviour of single and double-strap repairs on aluminium structures
Pinto, A. M. G.; Campilho, Raul; Mendes, Isabel R.; Silva, R. F.; Magalhães, A. G.; Baptista, A. P. M.In this work, an experimental study was performed on the influence of plug filling, loading rate and temperature on the tensile strength of single-strap (SS) and double-strap (DS) repairs on aluminium structures. The experimental programme includes repairs with different values of overlap length (LO=10, 20 and 30 mm), and with and without plug filling. The influence of the testing speed on the repairs streng...
A skin lymphoepithelial tumor (skin lymphadenoma).
Baptista, A P; Clínica de Dermatologia e Venereologia, Hospital da Universidade de Coimbra.; Tellechea, O; Reis, J PThe study of a case of cutaneous lymphadenoma and a literature review allowed us to verify that, in contrast to immunohistochemical findings, clinical and histological dates are basically reproducible. Accordingly the eccrine or hair follicle natures of the pleonasm cannot be either excluded or confirmed. The initial terms "cutaneous lympho-epithelial tumor" or "epithelial lymphohistiocytic tumor" seem more sui...
The blue rubber bleb nevus syndrome or Bean's syndrome. A rare cause of digesti...
Silva, A; Serviço de Medicina, Centro Hospitalar de Coimbra.; Sequeira, J; Coelho, A; Tellechea, O; Baptista, A P; Miraldo, MA 71-year-old male who had previously suffered from chronic alcoholism was admitted to the Internal Medicine Service of Coimbra Hospital Center in January 1996 due to asthenia, loss of weight, icterus and abdominal pain, clinical features that had begun six months before admittance to hospital. A physical examination revealed that, in addition to icterus, the patient presented multiple hemangiomas of 1 to 5 cm ...
Leukocytoclastic vasculitis. Review of 51 cases.
Marques, C; Clínica de Dermatologia e Venereologia, Hospitais da Universidade de Coimbra.; Sereijo, M; Domingues, J C; Sequeira, J; Baptista, A PLeukocytoclastic vasculitis (L.V.) is a polymorphous inflammatory dermatosis, characterized clinically by palpable purpura of the lower legs and, histologically by fibrinoid change in the small dermal vessels as well a polymorphonuclear infiltrate and nuclear dust. Fifty one cases (33 females and 18 males) of histologically confirmed L.V., seen at the Dermatologic Clinic, University Hospital of Coimbra, are rev...
Macrocheilitis and Melkersson-Rosenthal syndrome. Review of 19 cases.
Marques, C; Clínica de Dermatologia e Venereologia, Hospitais da Universisdade de Coimbra.; Machado, A; Baptista, A PMelkersson-Rosenthal syndrome is an uncommon condition of unknown cause. The classical triad includes recurrent orofacial oedema involving predominantly the lips (macrocheilitis), intermittent peripheral facial palsy and scrotal tongue. Some authors consider Miescher's cheilitis as a monosymptomatic form of the syndrome. Nineteen cases (11 females and 8 males) of macrocheilitis seen at the Dermatologic Clinic, ...
Peranal ulcers caused by ergotamine-containing suppositories.
Baptista, A P; Serviço de Dermatologia, Hospitais da Universidade de Coimbra.; Mariano, A; Machado, APerianal ulcerations caused by suppositories application is an exceptional situation. We describe a 64 years old female with recurrent painless perianal ulcerations evoluting from 14 months. She medicates herself daily, since 8 to 10 years, with ergotamine tartarate suppositories, for the treatment of migraine. The diagnosis of ulcerated cutaneous drug reaction induced by ergotamine tartarate was confirmed by t...
Dermal nerve sheath myxoma. (Neurothekeoma).
Tellechea, O; Clínica de Dermatologia, Hospitais da Universidade, Coimbra.; Reis, J P; Baptista, A PA 59-year-old male presented with a painful nodule on the interscapular area of 20 year duration. The microscopic examination showed a myxomatous lobulated tumor composed of dendritic fusiform cells with some epithelioid and multinucleated cells typical of a nerve sheath myxoma. Immunohistochemical analysis demonstrated reactivity for S100 protein. Neither factor XIIIa nor epithelial membrane antigen (EMA) expr...
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