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Search Results: 1 - 10 of 21107 matches for " Lucio Costa Safira "
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Accuracy of Rapid Prototyping Biomodels Plotted by Three Dimensional Printing Technique: Ex Vivo Study  [PDF]
Lucio Costa Safira, Luana Costa Bastos, Valter Estev?o Beal, Roberto Almeida de Azevedo, Carlos Eduardo Francischone, Viviane Almeida Sarmento
Advances in Computed Tomography (ACT) , 2013, DOI: 10.4236/act.2013.22008
Abstract: The rapid prototyping biomodels manufacturing is a recent technology with great importance in oral and maxillofacial surgery. It provides a better surgical planning, decrease of anesthesia time and great functional and esthetic results. The aim of this experimental study was to evaluate the accuracy of rapid prototyping biomodels built by three-dimensional printing (3DP) technique, since this is one of the least expensive methods available. Linear measurements of standardized bone defects and anatomic distances were compared using a digital caliper of high precision in nine dry mandibles (gold standard) and their respective biomodels. The Bland-Altman test was used for statistical analysis (5% level of significance). The results showed strong concordance between the dry mandibles and their respective biomodels, with discrepancies smaller than 2 mmin most cases (97.4%). We can conclude that the biomodels built by 3DP technique can be used for surgical planning in Dentistry.
An interview with Lucio G. Costa and Michael Aschner, section editors for toxicology
Lucio G Costa, Michael Aschner
BMC Pharmacology and Toxicology , 2012, DOI: 10.1186/2050-6511-13-16
Abstract: Michael Aschner is the Gray E. B. Stahlman Professor of Pediatrics and Pharmacology at Vanderbilt University School of Medicine as well as a Senior Investigator at the Kennedy Center for Research on Human Development. Dr Aschner’s research group has a particular interest in the neurobiology and physiology of astrocytes and the signaling mechanisms associated with central nervous system injury. Dr Aschner’s laboratory studies metal uptake and distribution in the brain, investigating the mechanisms of transport of methylmercury and manganese across the capillaries of the blood–brain barrier. His research utilizes various experimental models (C. elegans, tissue cultures and rodents) to understand the acute toxicity of manganese deposition in the brains of human neonates.In this interview we find out a little more about the key issues in the field of toxicology research.Lucio: I first became interested in pharmacology, a discipline which I thought was at the crossroad of medicine, chemistry and biology. After my doctorate in pharmacology, I was asked to consider a postdoctoral position in a new laboratory at the University of Milano, which was attempting to “launch” research in toxicology. I found the field fascinating and well trenched into everyday life. Indeed my first project was related to a color used in a very common alcoholic drink.Michael: As a graduate student in Neurobiology and Anatomy I rotated in the laboratory of the late Dr. Patricia Rodier. She was studying at the time the effects of methylmercury on neurodevelopment, addressing the antimitotic effects of this metal. I knew immediately this was an area of interest to me and have stuck with it since, through my postdoctoral years with “Mr. mercury”, Dr. Thomas Clarkson and independently thereafter.More than other areas of research, toxicology is interdisciplinary. While solid foundations in chemistry and biochemistry, biology, genetics, pathology and pharmacology are essential, they need to be integrated
Developmental Neurotoxicity: Some Old and New Issues
Gennaro Giordano,Lucio G. Costa
ISRN Toxicology , 2012, DOI: 10.5402/2012/814795
Tumor odontogênico adenomatóide em mandíbula
de Almeida Azevedo,Roberto; Bráulio Carneiro,Júnior; Safira Andrade,Lúcio Costa; Silveira de Castro,Carlos Henrique;
Revista Cubana de Estomatolog?-a , 2011,
Abstract: adenomatoid odontogenic tumor is a relatively uncommon lesion, which affects mainly individuals of the female during the second decade due, showing as a site of predilection for the anterior region of the maxilla presenting lesion usually associated with the crown of a tooth incluso. os authors report a case of an adenomatoid odontogenic tumor in the anterior region of mandible, together with their clinical, radiographic and histological and its surgical treatment.
Tumor odontogênico adenomatóide em mandíbula Tumor odontógeno adenomatoide de la mandíbula Adenomatoid odontogenic tumor in mandible
Roberto de Almeida Azevedo,Júnior Bráulio Carneiro,Lúcio Costa Safira Andrade,Carlos Henrique Silveira de Castro
Revista Cubana de Estomatolog?-a , 2011,
Abstract: Tumor odontogênico adenomatóide é uma les o relativamente incomum, que acomete preferencialmente indivíduos do sexo feminino durante a segunda década de vida. Exibe como sítio de predile o a regi o anterior da maxila, é geralmente associado à coroa de um dente incluso. Este trabalho tem o objetivo de apresentar um caso clínico de tumor odontogênico adenomatóide. Este se apresenta localizado em regi o anterior da mandíbula. Pretende-se ainda abordar suas características clínicas, radiográficas e histológicas, além do tratamento cirúrgico conservador de elei o. El tumor odontógeno adenomatoide es una lesión relativamente infrecuente que afecta principalmente a las mujeres durante la segunda década de vida, porque su sitio predilecto es la región anterior de la mandíbula, con una lesión por lo general asociada con la corona del diente. Se reporta un caso de tumor odontógeno adenomatoide en la región anterior de la mandíbula junto con sus resultados clínicos, radiológicos e histológicos así como su tratamiento quirúrgico. Adenomatoid odontogenic tumor is a relatively uncommon lesion, which affects mainly individuals of the female during the second decade due, showing as a site of predilection for the anterior region of the maxilla presenting lesion usually associated with the crown of a tooth incluso. Os authors report a case of an adenomatoid odontogenic tumor in the anterior region of mandible, together with their clinical, radiographic and histological and its surgical treatment.
Religious Practice among Italian Youth: A Case Study in Lazio  [PDF]
Lucio Meglio
Advances in Applied Sociology (AASoci) , 2012, DOI: 10.4236/aasoci.2012.22012
Abstract: The purpose of this article will be to highlight, through a case study of the Lazio region of Italy to the south of Rome, of the changing role of religion in Western Europe according to recent analyses that have been carried out on the relationship between religion and identity among young people, and the relationship between family structure and composition and religious practices. These issues have also been the topic of discussion among Catholic and Protestant groups in the different member countries and have been a controversial topic in the approval of the European Constitutional Treaty. These issues will be assessed in light of the different meanings of religion in non-European countries, especially in the context of underdevelopment in Africa, where there is not a sharp distinction between religious loyalty and civil society. Belonging to one religion or another tends to affect different types of political and economic loyalties, whereas these are maintained as separate spheres of life in Europe due to its heritage of prolonged civil and religious wars. The article will conclude by pointing out the strong potential for renovation that is implicit in religion—a renovation of values and styles of everyday life that seems to be urgent and necessary to face many dilemmas and problems of contemporary Western life. In this respect, a case will be made that religion can help better than politics and political movements to overcome difficulties and resistances in the necessary adaptation to changing environmental and economic conditions.
Efeitos da popula o de plantas e de tratamento fitossanitário no rendimento de gr os do feijoeiro comum, cultivar "TPS Nobre"
Jauer Adilson,Dutra Luiz Marcelo Costa,Zabot Lucio,Uhry Daniel
Ciência Rural , 2006,
Abstract: Foram conduzidos três experimentos, em Santa Maria e em Constantina - RS, com o objetivo de determinar a popula o mais adequada de plantas para o tipo II de feijoeiro comum, nas condi es de cultivo da safra e da safrinha em diferentes regi es climáticas, em fun o da ocorrência de moléstias. O delineamento experimental adotado foi o de blocos ao acaso, com cinco repeti es, no esquema de parcelas divididas. Maior popula o de plantas apresenta rendimentos superiores ou equivalentes aos obtidos na menor popula o de plantas, e a ocorrência de moléstias n o acarretou redu o do rendimento de gr os nas popula es maiores.
Ward identities for the Anderson impurity model: derivation via functional methods and the exact renormalization group
Peter Kopietz,Lorenz Bartosch,Lucio Costa,Aldo Isidori,Alvaro Ferraz
Physics , 2010, DOI: 10.1088/1751-8113/43/38/385004
Abstract: Using functional methods and the exact renormalization group we derive Ward identities for the Anderson impurity model. In particular, we present a non-perturbative proof of the Yamada-Yosida identities relating certain coefficients in the low-energy expansion of the self-energy to thermodynamic particle number and spin susceptibilities of the impurity. Our proof underlines the relation of the Yamada-Yosida identities to the U(1) x U(1) symmetry associated with particle number and spin conservation in a magnetic field.
Orthokeratinized odontogenic cyst: a report of two cases in the mandible
Pereira, Francisco de Assis Caldas;Vidal, Manuela Torres Andion;Campos, Paulo Sérgio Flores;Valen?a Neto, Alberto de Aguiar Pires;Andrade, Lúcio Costa Safira;Fernandes, Alex;Santos, Jean Nunes dos;
Revista Odonto Ciência , 2012, DOI: 10.1590/S1980-65232012000200016
Abstract: purpose: to describe the behavior clinical and pathological features of two cases of odontogenic cyst orthokeratinized. case description: in case 1, a 17-year-old woman presented hard and painless swelling in the left posterior mandible. radiographically, a radiolucent area with a radiopaque was observed. a clinical diagnosis of ameloblastoma or odontogenic keratocystic tumor was established. the histopathological examination revealed an orthokeratinized odontogenic cyst. in case 2, a 23-year-old woman presented a radiolucent lesion surrounded by radiopaque halo symmetrically distributed on both partially erupted lower third molars. a clinical diagnosis of bilateral dentigerous cyst (dc) was rended. the histopathological examination showed bilateral orthokeratinized odontogenic cyst. conclusion: orthokeratinized odontogenic cyst should be considered in the differential diagnosis of lesions occurring in the jawbones associated with an impacted tooth, particularly those cases simulating dentigerous cyst. in addition, we observed the importance of radiographs taken prior to orthodontic treatment as an important tool in the diagnosis of oral pathologies. performing routine radiograph is of high clinical value, especially before orthodontic treatment.
Securitizing Area Insurance: A Risk Management Approach  [PDF]
Pasquale Lucio Scandizzo
Journal of Financial Risk Management (JFRM) , 2013, DOI: 10.4236/jfrm.2013.23009
Abstract: This paper examines the possibility of developing a risk management instrument by designing a financial security whose value is linked to the average revenue of a given area. This type of program is sufficiently general to be considered for any group of businesses that face production uncertainty. In agriculture, it has been proposed as an alternative to multiple peril crop insurance programs, as area yield, revenue or rainfall insurance in order to eliminate ex ante and ex post moral hazard. While most of the literature concentrates on the determination of value of the indemnity and the payment of such an insurance, this paper focuses on the fact that, unlike other forms of insurance, area insurance can be cast in the form of a hedging security and, as a consequence, rather than depending only on the demand for diversification (the beta of the Capital Asset Price Model), it makes possible a risk shifting strategy based on the heterogeneity of risk attitudes of the economic agents operating in a given area.
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