Systemic risk in dynamical networks with stochastic failure criterion

Complex non-linear interactions between banks and assets we model by two time-dependent Erdos-Renyi network models where each node, representing a bank, can invest either to a single asset (model I) or multiple assets (model II). We use a dynamical network approach to evaluate the collective financial failure -systemic risk- quantified by the fraction of active nodes. The systemic risk can be calculated over any future time period, divided into sub-periods, where within each sub-period banks may contiguously fail due to links to either i) assets or ii) other banks, controlled by two parameters, probability of internal failure p and threshold T-h ("solvency" parameter). The systemic risk decreases with the average network degree faster when all assets are equally distributed across banks than if assets are randomly distributed. The more inactive banks each bank can sustain (smaller T-h), the smaller the systemic risk -for some Th values in I we report a discontinuity in systemic risk. When contiguous spreading becomes stochastic ii) controlled by probability p(2) -a condition for the bank to be solvent (active) is stochasticthe- systemic risk decreases with decreasing p(2). We analyse the asset allocation for the U.S. banks. Copyright (C) EPLA, 2014

Canine osteomyelitis caused by Leishmania sp

Leishmaniasis is a disease emerging or re-emerging worldwide distribution (Sousa, 2008), a major impact on public health. The canine visceral leishmaniasis is an infectious parasitic zoonosis of worldwide distribution (Troncarelli, 2009), caused by a flagellate protozoan called Leishmania chagasi (Costard, 2009). Osteomyelitis can develop when the parasite reaches the bone tissue of the host via blood or continuity of adjacent soft tissue infection (Baltenperger, 2004). The histopathology of the lesions has 100% specificity when viewing the amastigote form of the parasite (Feitosa et al., 2000). A dog breed poodle, female, five years, with chronic lameness four months ago was attended by a veterinary, proceeded to the general clinical examination, radiographic evaluation of the hindquarters and the laboratory tests of enzyme immunoassay (ELISA) and indirect immunofluorescence (RIFI) for Leishmania sp. On examination, besides the enlargement of lymph nodes, the animal showed pain on flexion and extension of hind limbs. In radiographic lytic bone lesions were observed in bilateral ischial board and greater trochanter of the femur, suggestive of osteomyelitis. In specific laboratory tests for diagnosis of leishmaniasis ELISA reagent and RIFI reagent 1:40. As recommended by the Ministry of Health, the animal was euthanized. No macroscopic findings were reported during the necropsy, usually associated with leishmaniasis. The ischium bone fragments were sent for histopathological examination. There was intense proliferation of mononuclear inflammatory cells, mainly macrophages and lymphocytes. Amastigotes of Leishmania sp, were identified in the cytoplasm of some macrophages and bone tissue. In endemic areas for canine leishmaniasis, dogs with a history of intermittent lameness, and radiographic lytic bone lesions suggestive of osteomyelitis should be directed to realization of the histopathology and serologic tests for the differential diagnosis of Leishmania sp. Even without evidence of cutaneous or visceral lesions, usually associated with this disease.

Análise experimental da conexão entre blocos segmentais e geogrelha de PVA

The test system connection segmental blocks and geogrids at the Department of Civil Engineering, UNESP - Guaratinguetá order to verify the strength of the connection system when subjected to different confining stresses. The present work aims to demonstrate the procedures for carrying out the test as well as the placement of concrete blocks. Were analyzed two ways of placing the blocks in the press. An entire block and two halves in the first layer, named position 12, compared to a different format, two entire blocks in the first layer, named position 21; also geogrids: single and double layer. From the data obtained for the peak strength of 20 tests it was possible to obtain the envelopes break in the connection for single and double layer. In 2011, the size of the concrete block used in the test was lower when compared with previous years. What resulted in significant decreases in the loss of connection in single layer and it was noted that there was no decrease in the strength of connection in the double-layer tests, despite the smaller area of contact between the block and geogrid. It is concluded that, through the analysis of geogrids after running the test, the concrete block is responsible for theforce that allows the movement of the geogrid due to the force from the ground

Estudo e simulação de redes de sensores em superfícies não-planas

This Bachelor’s Thesis of Bachelor of Computer Science defines a research and a network sensor simulation on non-planar surfaces . The report is composed of an introduction of the research, a theoretic study, a state of the art and a historic context of sensor network. The simulation consists of the formation of terrain, node’s random distribution and a production and a transmission of the node’s packages. Based on these three important topics , the exchange of information/packages between multiple nodes is through breadth-first search algorithm. The active nodes, node quantity and operation range are also defined in the program. After the program analysis the node activation, the packages are created and transmitted to the next node. This process occurs many times and help on the analysis of the sensor network on non-planar surfaces parameters

Dosimetria Física e Controle de Qualidade em Radioterapia

Radiotherapy is a multidisciplinary speciality which uses complex equipment and radiation sources for delivery of treatment, using high-energy ionizing radiation to treat cancer at several stages of complexity. Since radiation therapy is a technique which involves a precalculated radiation dose, it shall be established quality assurance programs that provide an efficient and safety treatment. The International Commission on Radiation Units and Measurements (ICRU) report No. 50 has recommended dose uniformity between 5% of the prescribed dose throughout the region of interest. This is one of the most primordial points that justify the importance of a suitable attendance of the equipments quality and performance. For quality control, the medical physicist will be involved with establishing and running a Quality Control Program (QCP). He must adapt or develop the procedures of equipment acceptance and commissioning, besides verifying the use of principles and accepted protocols of national and international reports to assure the correct quality, quantity, and placement of radiation during the performance of a radiological procedure, establishing adequate protocols to ensure accurate patient dosimetry. This present work consists of a description of the activities carried through the Sectors of Radiation Therapy of the Hospital of Clinics of the Campinas State University (Unicamp), particularly in the implementation of the Quality Control Program

Considerações clínicas em implantes imediatos

The biological principles of osseointegration caused the rehabilitation treatment with osseointegrated implant become a safe, well alternative accepted by the dental community for the high success rate, allowing the preparation of functional and aesthetic prostheses in edentulous and partial patients. We passed the initial phase of functional vision for an aesthetic approach, too, depending on the demands of the patient and the quest for excellence by professionals. Over these last years, implant treatment has undergone many changes in surgical and prosthetic protocols. The less invasive surgical techniques and the development of restorative materials, especially ceramics allow the prosthetic rehabilitation of high functional quality and aesthetics. The installation of implants in sockets immediately after extraction of teeth involved by fracture, periodontal disease, endodontic lesions, is part of the arsenal of techniques for rehabilitating a number of advantages that we get to the outcome of multidisciplinary treatment. For this, we must consider several criteria in its planning as a fundamental unit, adjacent teeth, multiple losses, system, form and number of implants, type of retention of the prosthesis components, the patient expectation of the outcome perspective, gingival biotype, standard of ridge resorption, the smile line, etc. occlusal analysis. With the three-dimensional placement of the implant can immediately join the biological processes of repair of the socket, implant osseointegration, speeding treatment time. Much has been made by companies in the surface treatment of endosseous implants to be osseointegration shortened and restorative procedures started earlier, bringing benefits to the patient and professional. Among the main advantages we can emphasize the preservation of the structures adjacent to the teeth replaced, minor resorption of bone tissue involved... (Complete abstract click electronic access below)

Farmacocinética da gentamicina asministrada pela via intravensa regional em equinos com a utilização de modelos de torniques

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sistema de avaliação e tratamento da coluna lombar com o uso de tração mecânica

Pós-graduação em Engenharia Mecânica - FEG

Análise microbiológica da exposição das roscas dos implantes osseointegráveis no seio maxilar de ovelhas

Pós-graduação em Odontologia - FOA

O ensino da implantodontia no curso de graduação de odontologia: o relato de experiência de uma instituição e o perfil dos pacientes atendidos na clínica de implantodontia das Faculdades Adamantinenses Integradas - FAI

Pós-graduação em Odontologia Preventiva e Social - FOA

Syngonanthus nitens (Bong.) Ruhland: caracterização biológica e prospecção terapêutica do extrato metanólico incorporado ou não em sistema nanoestruturado para aplicação no tratamento da candidíase vulvovaginal

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenho animado e desenvolvimento moral: uma proposta de intervenção na forma de resolução de conflitos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Quantificação de endotoxinas e sua relação com sinais / sintomas e volumetria da lesão periapical e do canal radicular em dentes com infecção endodôntica primária

Pós-graduação em Odontologia Restauradora - ICT

Controle ativo de estruturas reticuladas utilizando atuadores de pilha de pzt

Pós-graduação em Engenharia Mecânica - FEIS

Efeito da aPDT na osseointegração de implantes em alvéolos contaminados

Objective: The aim of this study is to evaluate by histometric and immunohistochemistry analysis the effects of antimicrobial photodynamic therapy (aPDT) in alveolar prior to placement of mini-implants in animals with or without induced periodontal disease. Material and method: Thirty-two rats were used. Periodontal disease (PD) was induced by ligature in the lower left first molar. After 7 days of PD evolution, it was performed removal of the ligature and extraction of the left lower first molars in all animals. Thus, animals were divided into 2 groups (n=16) according to the treatments in the dental alveolus before immediate implant installation: MD (control) : mechanical debridement (MD), irrigation with 1 ml of saline solution followed by implant installation; aPDT- MD, irrigation with 1 ml of Toluidine Blue-O and low intensity laser (LLLT) and implant installation. Eight animals from each group were euthanized at 15 and 30 days after the installation of mini-implants. Specimens were processed for histologic, immunohistochemical and histometric analysis. The histometric data were processed for statistical analysis (Kruskall-Wallis and Dunn test; p <0.05). Result: In treatment analysis, results indicated that there was a greater BIC in implants installed in uncontaminated alveolus treated with a PDT ( p<0,05) and greater imuno-reactivity to OPG in bone issue treated with aPDT. Conclusion: The aPDT proved to be effective in bone loss control in no contaminated area and it has increased the bone loss and metabolic activity in alveolus irradiated prior to implant installation.