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Search Results: 1 - 10 of 9326 matches for " Machado "
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Unusual Contents of Inguinal Hernia Sac. An Approach to Management  [PDF]
Norman Oneil Machado, Nikita Neha Machado
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.26068
Abstract: Background-Unusual contents of hernia sac are uncommon, but are likely to be encountered by a surgeon in his career due to the frequency of hernia repair. The aim of this study, is to present our experience of unusual contents in inguinal hernia sac, discuss its management and review the relevant literature with regards to others experience. Patients and methods-Retrospective study of 662 patients who underwent inguinal hernia repair over an 8 year period from 2000 to 2008 was carried out. Results-Seven patients presented with unusual contents in inguinal hernia sac; an incidence of 1.05%. Three of them had vermiform appendix, with acute appendicitis (Amyand’s Hernia) noted in one of them. All patients underwent appendicectomy with repair of hernia, with mesh being employed only in patients with normal appendix. In 2 cases urinary bladder had herniated and there was one case each of ovarian cyst and fallopian tube with ovary as its content. In all these patients hernia repair was carried out after carefully reducing the contents. Conclusion-Unusual contents of hernia may pose a surgical dilemma during hernia repair even to an experienced surgeon. Although rare, a hernia may contain vermiform appendix and exceptionally it may be acutely inflamed. Tubal and ovarian herniation in an inguinal hernia may be found in adult and perimenopausal women, though the incidence is reported to be more common in children. Urinary bladder herniation occurs with similar incidence as tubo ovarian hernia; however it requires special attention because of the risk of iatrogenic bladder injury during inguinal dissection. Though appendix as a content is dealt with by appendicectomy followed by hernioplasty, every effort should be made to preserve other organs found in the hernia sac to achieve an uneventful postoperative period.
Thyroidectomy for Massive Goiter Weighing more than 500 Grams. Technical Difficulties, Complications and Management. Review  [PDF]
Norman Oneil Machado
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.25060
Abstract: Background: Multinodular goiter is a relatively common thyroid disorder with a marked female preponderance. Most of these goiters weigh less than 100 grams with those weighing more than 500 grams being exceptional. The massively expanding goiter due to the strategic anatomic location of thyroid gland, in addition to being cosmetically disfiguring can seriously compromise the patency of the trachea and oesophagus. Thyroidectomy for such goiters is a surgical challenge due to the possible association of tracheomalacia, retrosternal extension, skin involvement and the difficulty in intubation and dissection of the thyroid gland due to distorted and displaced anatomy. Material and methods: While presenting 2 patients who underwent thyroidectomy for glands weighing more than 500 grams, the literature is reviewed to analyze the technical difficulties and approach in such patients and the frequently encountered complications in them and their management. Results: A review of the literature revealed an additional 7 cases of patients who had undergone thyroidectomy for glands weighing more than 500 grams. Massively enlarged goiter was often associated with tracheomalacia, tracheal stenosis and retrosternal extension. Difficulty during surgery was most often encountered in establishing the airway and in exposure of the gland particularly when the skin was involved. The predominant postoperative complications were related to respiratory distress as a consequence of tracheomalacia and tracheal stenosis. Conclusion: In spite of the technical challenge related to the airway, and thyroidectomy, surgery continues to be the best option in experienced hands due to its distinct advantage of its immediate effect and complete resolution of compressive symptoms.
Recurrent Giant Phyllodes Tumour of the Breast Pathological Considerations and Management Approach for Recurrence and Metastasis  [PDF]
Norman Oneil Machado
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.34043
Abstract: Phyllodes tumours are rare and account for 0.4% of all breast tumours. The majority of them tend to be less than 5 cms in size with giant tumours larger than 10 cms being about 20% of these cases. They display a broad range of clinical and pathological behavior and are regarded as falling within the spectrum of fibroepithelial neoplasms. Surgery has been the primary modality of treatment. However the extent of resection and the role of adjuvant radiotherapy and chemotherapy are still controversial. The risk of recurrence is (4.7% - 30%) for benign phyllodes tumour and (30% - 65%) for borderline and malignant phyllodes tumour. A case of giant phyllodes tumour measuring 36 × 30 cm and weighing 6.8 kg is presented, which had recurred following a previous resection 5 years back. The literature is reviewed with regards to pathology, the role of investigations, nature of resection and the risk factors for recurrence and metastasis
Reasons for Prophylactic Mastectomy in Women Carrying BRCA 1/2 Mutation: A Systematic Literature Review  [PDF]
Manuel Machado, Sofia Braga
Advances in Breast Cancer Research (ABCR) , 2013, DOI: 10.4236/abcr.2013.23017

Although the majority of breast cancers are sporadic, it is estimated that between 5% and 10% of cases are hereditary and mostly associated with BRCA 1 and BRCA 2 mutations. Women with BRCA 1 or BRCA 2 mutation present up to 95% increased risk of breast cancer and are advised to take preventive measures. Surveillance, chemoprevention and prophylactic surgery (mastectomy and oophorectomy) are risk-reducing strategies. This literature review aims to respond to two major questions: 1) to what extent is the decision-making for prophylactic mastectomy in women with the BRCA mutation a more relevant option than other strategies, and 2) what are the major factors influencing the decision for mastectomy? For this purpose, 27 published articles were reviewed. Results show: a) the decision for mastectomy is more frequent in women carrying BRCA 1/2 mutation than in non-carriers; mastectomy being less frequent than oophorectomy; b) the decision-making is significantly associated with BRCA mutation, parity, age and family history; c) reasons underlying women decision-making relate to anxiety toward the risk of cancer, concerns with surgery, body-image and sexuality. It is discussed that, due to the complexity of the decision-making process, these cases require a careful and meticulous approach regarding information provided, and in addressing concerns.

Fim do livro?
Machado, Arlindo;
Estudos Avan?ados , 1994, DOI: 10.1590/S0103-40141994000200013
Abstract: the text presents hypothesis about the classical roots of today's electronic books. tracing hypertext and hypermedia back to the rhetoric practiced in ancient greece and mediaeval oral culture, it offers an intellectual context and a background to understand the rapid changes in the universe of publishing. today, electronic books replicate the familiar environment of a book for computer screens, though adding new features like dynamic links and sound or video playback.
Construtores da bio(in)seguran?a na base de dados de perfis de ADN
Etnográfica , 2011,
Abstract: this paper analyses the discourses produced by experts and politicians about the creation of a dna database for civil identification and criminal investigation purposes in portugal, aiming to explore some stances in the construction of biosecurity. three main types of arguments are found: science as the support of a simultaneously more effective and reliable justice; the need to follow the course of more developed countries in terms of criminal investigation and trans-border cooperation; the contribution towards the common good. this concerns an increasingly global technical-genetic and biopolitical project, merged within collective imageries built upon on fears of crime and criminals, which is more grounded on promises of imagined utility and efficacy in the identification of offenders than on the invocation of the risks and uncertainties.
Nietzsche e o renascimento do trágico
Machado, Roberto;
Kriterion: Revista de Filosofia , 2005, DOI: 10.1590/S0100-512X2005000200003
Abstract: the purpose of this article is to discuss nietzsche's theory on the rebirth of the tragic presented in his early writings as part of the german cultural project introduced by winckelmann, goethe and schiller in the second half of the 18th century. departing from the idea that this project established greece as a model to be followed by germany, i will point out nietzsche's supporting views to it as well as his innovative idea of bringing together the philosophy of schopenhauer and the music of wagner to think the greek culture.
Colecta de Jatropha curcas y su comportamiento en fase de vivero y de establecimiento (Nota técnica)
Pastos y Forrajes , 2011,
Abstract: the objective of this work was to collect j. curcas material with adequate morphological characteristics for seed production, as well as to determine its performance in the nursery and establishment stages. in nursery variation was observed in the necessary days for the rooting of the propagules (14 to 35 days) and in seedling emergence (7 to 28 days). the propagule survival fluctuated between 73 and 100%; while starting from seed it was between 26,6 and 85,0%. the survival in the field stage varied between 45,4 and 93,3% in the provenances transferred by propagules, but in most it turned out to be lower than the one detected in the nursery. in the provenances directly sown variation was also detected in survival, but the number of plants emerged after 56 days was high. under these conditions a similar variation pattern was maintained in the percentage of rooted plants and survival, but the effect of the stress caused by the transfer was evident. it is concluded that the age of the plants and the parts selected in the donor material, as well as seed quality, could have influenced the variation of the necessary days for rooting or emergence and the survival percentage. using the procedure described for the collection of j. curcas is recommended, emphasizing the vegetative way, in order to have access to provenances with adequate characteristics for seed production and with it maintain the genotype of the collected materials.
Caracterización morfológica y productiva de procedencias de Jatropha curcas L.
Pastos y Forrajes , 2011,
Abstract: the objective of this work was to characterize the morphological and productive variability of jatropha curcas provenances. for that purpose the following indicators were measured or estimated: height; diameter of primary branches and stem; height of the first branch; diseases; number of primary, secondary and tertiary branches; fruit number and weight; seed yield; weight of 100 seeds; seed size and oil content. in order to interpret the results pca and cluster analysis were used. height was the most variable indicator, followed by diameter of primary branches, number of secondary and primary branches and stem diameter, which accounted for 57,7% of the variability. based on these indicators six groups were formed. the highest values, in all morphological indicators, were found in group i (sscs-3), and the lowest ones in group iv (sscs-7 and sscs-6). only six from the ten seeded provenances produced fruits; while the planted ones did it in all cases. among the seeded ones the following stood out: san miguel, d-1 and sscs-3, with estimated yields of 2 325; 243 and 169 kg of seed/ha; and in the planted ones: cabo verde, ssce-10 and ssce-7 with 814; 327 and 93,2 kg of seed/ha, respectively. in ssce-10 and cabo verde the oil percentage reached 32,8 and 35,0%, respectively. the results allowed identifying the outstanding provenances, in the morphological (sscs-3) as well as the productive indicators (cabo verde, ssce-10 and san miguel).
Novos Movimentos Religiosos, Indivíduo e Comunidade: sobre família, mídia e outras media??es
Machado, Carly;
Religi?o & Sociedade , 2010, DOI: 10.1590/S0100-85872010000200008
Abstract: this article focuses on the question of how communities are formed in the context of new religious movements, specifically the raelian movement, a religious group in which individualist values typical of a new age self religion merge with both possible and impossible community formations. identifying the family as a key element in the analysis of the relation between individual and community, this article discusses how the raelian religious project - which takes the individual as a value and strongly rejects the christian familiar configuration - is dissolved not in the absence of community formations, but in the shaping of community assemblages that are more volatile and less cohesive, but no less complex and viable as transnational communities mediated by the mass media.
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