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Sample records for inseridos em tibia

  1. Projeto Acqua: uma Experiência de Ambiente Virtual de Aprendizagem Inserido em Web 2.0

    Directory of Open Access Journals (Sweden)

    Marcus Vinicius de Azevedo Basso

    2015-07-01

    Full Text Available Com o desenvolvimento da Web2.0, as ferramentas disponíveis na internet tornaram a aprendizagem colaborativa, e com isso, os sujeitos tornaram-se agentes influentes que participam ativamente no processo de aprendizagem de outros sujeitos, tornando assim a aprendizagem uma grande rede virtual. O projeto intitulado Acqua, realizado na UFRGS, possui duas versões: a primeira, produzida em 2004, usa ferramentas estritamente conhecidas e disponíveis na Web1.0, que estavam, entretanto, em transição para a Web2.0. Mais recentemente, em 2008, foi produzido um novo modelo para o Acqua, no qual a influência da Web2.0 é forte durante o desenvolvimento das atividades propostas. Neste trabalho, discutiremos os aspectos teóricos que possibilitaram a reformulação desse ambiente virtual de aprendizagem que potencializaram seu uso. Serão tratados também os aspectos relevantes sobre objetos de aprendizagem inseridos totalmente na Web2.0 e sua importância na aprendizagem colaborativa.

  2. Evaluation of the effect of low intensity laser radiation on the osseointegration of titanium implants inserted in rabbits' tibia; Avaliacao biomecanica da acao da radiacao laser em baixa intensidade no processo de osseointegracao de implantes de titanio inseridos em tibia de coelhos

    Energy Technology Data Exchange (ETDEWEB)

    Castilho Filho, Thyrso

    2003-07-01

    The purpose of this study was to evaluate the influence of low intensity laser irradiation on bone repair process after titanium implant surgeries performed in rabbits' tibia. Thirty three Norfolk rabbits were divided into three different groups according to the implant removal period (14, 21 and 42 days). Two titanium-pure implants were inserted one in each tibia and one side was randomly chosen to be irradiated. Irradiations were performed employing a GaAlAs laser ({lambda}=780 nm) during 10 seconds, with an energy density of 7.5 J/cm{sup 2} on 4 spots: above, bellow, on the right and on the left side of the implants with an interval between irradiations of 48 hours during 14 days. Animals were sacrificed according to the observation times, tibias were removed and the strength removal values recorded. Results showed that, for the 21 and 42 days sacrifices periods, the irradiated side presented a statistically higher implant strength removal values when compared to the non-irradiated side. (author)

  3. Evaluation of the effect of low intensity laser radiation on the osseointegration of titanium implants inserted in rabbits' tibia; Avaliacao biomecanica da acao da radiacao laser em baixa intensidade no processo de osseointegracao de implantes de titanio inseridos em tibia de coelhos

    Energy Technology Data Exchange (ETDEWEB)

    Castilho Filho, Thyrso

    2003-07-01

    The purpose of this study was to evaluate the influence of low intensity laser irradiation on bone repair process after titanium implant surgeries performed in rabbits' tibia. Thirty three Norfolk rabbits were divided into three different groups according to the implant removal period (14, 21 and 42 days). Two titanium-pure implants were inserted one in each tibia and one side was randomly chosen to be irradiated. Irradiations were performed employing a GaAlAs laser ({lambda}=780 nm) during 10 seconds, with an energy density of 7.5 J/cm{sup 2} on 4 spots: above, bellow, on the right and on the left side of the implants with an interval between irradiations of 48 hours during 14 days. Animals were sacrificed according to the observation times, tibias were removed and the strength removal values recorded. Results showed that, for the 21 and 42 days sacrifices periods, the irradiated side presented a statistically higher implant strength removal values when compared to the non-irradiated side. (author)

  4. [Intramedullary nailing of the tibia with the expert tibia nail].

    Science.gov (United States)

    Hansen, Matthias; El Attal, René; Blum, Jochen; Blauth, Michael; Rommens, Pol Maria

    2009-12-01

    Restoration of axis, length, and rotation of the lower leg. Sufficient primary stability of the osteosynthesis for functional aftercare. Early functional aftercare to maintain joint mobility. Good bony healing in closed and open fractures. All closed and open fractures of the tibia and complete lower leg fractures (AO 42). Certain extraarticular fractures of the proximal and distal tibia (AO 41 A2/A3; AO 43 A1/A2/A3). Segmental fractures of the tibia. Certain intraarticular fractures of the tibia with use of additional implants (AO 41 C1/C2; AO 43 C1/C2). Stabilization during and after segmental bone transport or callus distraction of the tibia. Patients in poor general condition (e.g., bedridden). Flexion of the knee of less than 90 degrees . Infection in the nail's insertion area. Infection of the tibial cavity. Complex articular fractures of the proximal or distal tibia with joint depression. Closed reduction of the fracture. If necessary, use of reduction clamps through additional stab incisions or open surgical procedures. In some cases, additional osteosynthesis procedures are necessary (e.g., screws). Positioning of the patient may be performed on a radiolucent table or a traction table. Opening of the proximal tibia in line with the medullary canal. Cannulated or noncannulated insertion of the Expert Tibia Nail((R)) with or without reaming of the medullary canal depending on the fracture type and soft-tissue condition. Control of axis, length, and rotation. Distal interlocking with the radiolucent drill and proximal interlocking with the targeting device. Immediate mobilization of ankle joint and knee joint. Depending on the type of fracture, mobilization with 20 kg partial weight bearing or pain-dependent full weight bearing with crutches. X-ray control 6 weeks postoperatively and increased weight bearing depending on the fracture status. In a prospective, international multicentric study, 181 patients with 186 fractures were included between July 2004 and

  5. [Intramedullary nailing of the distal tibia illustrated with the Expert(TM) tibia nail].

    Science.gov (United States)

    El Attal, R; Hansen, M; Rosenberger, R; Smekal, V; Rommens, P M; Blauth, M

    2011-12-01

    Restoration of axis, length, and rotation of the lower leg. Sufficient primary stability of the osteosynthesis for functional aftercare and to maintain joint mobility. Good bony healing in closed and open fractures. Closed and open fractures of the tibia and complete lower leg fractures distal to the isthmus (AO 42), extraarticular fractures of the distal tibia (AO 43 A1/A2/A3), segmental fractures of the tibia with a fracture in the distal tibia, and certain intraarticular fractures of the distal tibia without impression of the joint line with the use of additional implants (AO 43 C1) Patient in reduced general condition (e.g., bed ridden), flexion of the knee of less than 90°, patients with knee arthroplasty of the affected leg, infection in the area of the nail's insertion, infection of the tibial cavity, complex articular fractures of the proximal or distal tibia with joint depression. Closed reduction of the fracture preferably on a fracture table or using a distractor or an external fixation frame. If necessary, use pointed reduction clamps or sterile drapery. In some cases, additional implants like percutaneous small fragment screws, poller screws or k-wires are helpful. Open reduction is rarely necessary and must be avoided. Opening of the proximal tibia in line with the medullary canal. Canulated insertion of the Expert(TM) tibia nail (ETN; Synthes GmbH, Oberdorf, Switzerland) with reaming of the medullary canal. Control of axis, length, and rotation. Distal interlocking with the radiolucent drill and proximal interlocking with the targeting device. Immediate mobilization of ankle and knee joint. Mobilization with 20 kg weight-bearing with crutches. X-ray control 6 weeks postoperatively and increased weight-bearing depending on the fracture status. In cases with simple fractures, good bony contact, or transverse fracture pattern, full weight-bearing at the end of week 6 is targeted. Between July 2004 and May 2005, 180 patients were included in a

  6. O registro de si e do outro: práticas de leitura e de escrita de estudantes em ambiente digital

    Directory of Open Access Journals (Sweden)

    Adriana Barroso de Azevedo

    2015-07-01

    Full Text Available http://dx.doi.org/10.5007/1807-9288.2015v11n1p369 O presente artigo é um recorte da Dissertação de Mestrado intitulada “Ensino Médio, Língua Portuguesa e Portal Educacional: percepções emergentes das narrativas de alunos inseridos em práticas de letramento digital” (PERICO, 2015 na qual foi abordada a importância das Tecnologias Digitais de Informação e Comunicação (TDIC no atual contexto educacional. A metodologia adotada foi a pesquisa qualitativa de cunho investigativo, na modalidade narrativa. A apuração dos dados resultou em oito categorias de análise, sendo selecionada para este artigo aquela que analisa a produção de alunos em ambiente digital. Os resultados obtidos apontaram para uma efetiva preocupação com a escrita em norma culta, por parte dos estudantes inseridos no processo, ao terem seus textos lidos, analisados e debatidos por outros colegas.

  7. Hipanto e tubo estaminal em Xylopia aromatica (Lam.) Mart. (Annonaceae)

    OpenAIRE

    Dias, Marilda C.; Castro, Marília de M.; Kinoshita, Luiza S.; Semir, João

    1998-01-01

    (Hipanto e tubo estaminal em Xylopia aromatica (Lam.) Mart. (Annonaceae)). Observou-se, em corte longitudinal de flores de cinco espécies de Xylopia, um anel lenhoso ao redor dos carpelos e sobre ele, inserido de forma espiralada, o conjunto de estames e estaminódios. Para elucidar a natureza desta estrutura, foi realizado um estudo anatômico em flores adultas de Xylopia aromatica (Lam.) Mart., particularmente da vascularização desde a base do receptáculo até os estames, estaminódios e carpel...

  8. Resultados em e-Learning corporativo

    OpenAIRE

    Cardoso, Fernando de Carvalho

    2011-01-01

    As empresas estão ampliando muito a utilização do e-learning em seus processos de educação corporativa, este trabalho iniciou-se na busca para responder quais são os impactos da implementação do e-Learning no processo educacional nas corporações. Esta dissertação de mestrado apresenta um estudo dos resultados das ações de e-learning e o contexto em que este está inserido, nas corporações e na sociedade. Para tanto foram utilizados autores que falam sobre educação, educação corporativa, ...

  9. TRAÇOS PRESCRITIVISTAS EM "A LÍNGUA DO BRASIL"

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    Saul Gomes Júnior

    2016-09-01

    Full Text Available Neste trabalho, inserido no âmbito da Historiografia Linguística, analisam-se as manifestações do prescritivismo em A língua do Brasil, de Gladstone Chaves de Melo. A fundamentação teórica tem como base a noção de horizonte de retrospecção, estabelecida por Auroux (2006. Comprova-se que, na obra em questão, o prescritivismo manifesta-se de dois modos: 1 critério da lógica; 2 retórica sarcástica. Nessa obra, Melo empenha-se em defender uma norma: o patrimônio linguístico em torno do qual brasileiros e portugueses permanecem unidos.

  10. Análise biomecânica comparativa entre os sistemas plate-nail e plate-rod em fraturas induzidas em fêmures de caninos: estudo ex-vivo

    OpenAIRE

    Mesquita, Luciane dos Reis

    2013-01-01

    O objetivo deste estudo foi comparar as propriedades mecânicas da associação da haste intramedular bloqueada e placa óssea (plate-nail) e da associação do pino intramedular e placa óssea (plate-rod), utilizadas em fraturas experimentalmente induzidas em fêmures de caninos. Vinte pares de fêmures de cães foram selecionados para receber os sistemas plate-nail e plate-rod. Em cada fêmur, uma ostectomia no terço médio da diáfise foi realizada e inserido o sistema selecionado. As construções foram...

  11. Hydatid cyst of the tibia.

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    Madiwale C

    1992-10-01

    Full Text Available A case of hydatid cyst of the tibia, which manifested as a pathologic fracture is being reported. Pain and swelling of left lower limb with inability to bear the weight were the main features. Tender swelling was also noted at the upper and middle third of tibia. Open biopsy revealed the hydatid cyst wall and scolices of Echinococcus granulosus. Albendazole treatment was followed by curettage and bone grafting.

  12. Para uma genealogia do debate em torno da viabilidade do Estado em Timor‑Leste

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    Nuno Canas Mendes

    2014-09-01

    Full Text Available O artigo procura traçar uma genealogia do debate em torno da construção e da viabilidade do Estado em Timor‑Leste, desde os alvores da ideia de independência aos nossos dias: percorre o período 1974‑75, a ocupação indonésia até ao início e termo da administração internacional das Nações Unidas (1999‑2002 e finalmente a assunção da soberania em 2002, com os subsequentes desafios e dificuldades desde então sentidos. Este debate reflete tensões políticas de âmbito regional e internacional e deve ser inserido nos contextos históricos específicos em que ocorreu tal produção discursiva. Para além da definição de um quadro conceptual que se ensaia na aplicação ao caso, serão analisadas as posições dos principais intervenientes externos no processo, Estados e organizações internacionais, cujas motivações serão objeto de reflexão.

  13. Comparison of metal concentrations in rat tibia tissues with various metallic implants.

    Science.gov (United States)

    Okazaki, Yoshimitsu; Gotoh, Emiko; Manabe, Takeshi; Kobayashi, Kihei

    2004-12-01

    To compare metal concentrations in tibia tissues with various metallic implants, SUS316L stainless steel, Co-Cr-Mo casting alloy, and Ti-6Al-4V and V-free Ti-15Zr-4Nb-4Ta alloys were implanted into the rat tibia for up to 48 weeks. After the implant was removed from the tibia by decalcification, the tibia tissues near the implant were lyophilized. Then the concentrations of metals in the tibia tissues by microwave acid digestion were determined by inductively coupled plasma-mass spectrometry. Fe concentrations were determined by graphite-furnace atomic absorption spectrometry. The Fe concentration in the tibia tissues with the SUS316L implant was relatively high, and it rapidly increased up to 12 weeks and then decreased thereafter. On the other hand, the Co concentration in the tibia tissues with the Co-Cr-Mo implant was lower, and it increased up to 24 weeks and slightly decreased at 48 weeks. The Ni concentration in the tibia tissues with the SUS316L implant increased up to 6 weeks and then gradually decreased thereafter. The Cr concentration tended to be higher than the Co concentration. This Cr concentration linearly increased up to 12 weeks and then decreased toward 48 weeks in the tibia tissues with the SUS316L or Co-Cr-Mo implant. Minute quantities of Ti, Al and V in the tibia tissues with the Ti-6Al-4V implant were found. The Ti concentration in the tibia tissues with the Ti-15Zr-4Nb-4Ta implant was lower than that in the tibia tissues with the Ti-6Al-4V implant. The Zr, Nb and Ta concentrations were also very low. The Ti-15Zr-4Nb-4Ta alloy with its low metal release in vivo is considered advantageous for long-term implants.

  14. Mobilidade, comunicação e consumo: expressões da telefonia celular em Angola, Brasil e Portugal

    OpenAIRE

    Silvio Koiti Sato

    2015-01-01

    Esta pesquisa reflete sobre o ambiente de mobilidade decorrente da popularização das tecnologias móveis, com redes sem fio, no contexto das Novas tecnologias de informação e comunicação (NTICS). O telefone celular, símbolo da mobilidade informacional-virtual na qual estamos inseridos, cria impactos em diferentes práticas sociais, ao trazer a promessa de permanente conexão a outras pessoas e informações, a qualquer momento e em qualquer lugar. As interações entre telefonia celular e mobilidade...

  15. Novel implant for peri-prosthetic proximal tibia fractures.

    Science.gov (United States)

    Tran, Ton; Chen, Bernard K; Wu, Xinhua; Pun, Chung Lun

    2018-03-01

    Repair of peri-prosthetic proximal tibia fractures is very challenging in patients with a total knee replacement or arthroplasty. The tibial component of the knee implant severely restricts the fixation points of the tibial implant to repair peri-prosthetic fractures. A novel implant has been designed with an extended flange over the anterior of tibial condyle to provide additional points of fixation, overcoming limitations of existing generic locking plates used for proximal tibia fractures. Furthermore, the screws fixed through the extended flange provide additional support to prevent the problem of subsidence of tibial component of knee implant. The design methodology involved extraction of bone data from CT scans into a flexible CAD format, implant design and structural evaluation and optimisation using FEM as well as prototype development and manufacture by selective laser melting 3D printing technology with Ti6Al4 V powder. A prototype tibia implant was developed based on a patient-specific bone structure, which was regenerated from the CT images of patient's tibia. The design is described in detail and being applied to fit up to 80% of patients, for both left and right sides based on the average dimensions and shape of the bone structure from a wide range of CT images. A novel tibial implant has been developed to repair peri-prosthetic proximal tibia fractures which overcomes significant constraints from the tibial component of existing knee implant. Copyright © 2018 Elsevier Ltd. All rights reserved.

  16. Fractures of the shafts of the tibia and fibula

    International Nuclear Information System (INIS)

    Bender, C.E.; Campbell, D.C.

    1985-01-01

    Fractures of the shafts of the tibia and fibula are the most common long bone fractures. This chapter discusses tibial and fibular shaft fractures. Treatment of tibial and fibular fractures is similar and, therefore, reference is primarily made to the tibia. Diagnostic techniques are also evaluated

  17. Degradação ambiental em fragmento de Mata Atlântica: floresta urbana Mata do Janga em Paulista/PE

    OpenAIRE

    Oliveira, Paulo Cabral de

    2015-01-01

    A Mata do Janga é um fragmento de Mata Atlântica que se localiza na cidade do Paulista, município inserido na RMR (Região Metropolitana do Recife) capital do Estado de Pernambuco. Encontra-se protegida por lei como uma Unidade de Conservação (UC) estadual e parte dela constitui-se uma Reserva Ecológica e recategorizada como Floresta Urbana (FURB). Com uma área de 132,24 hectares, a mata vem sofrendo fortes pressões antrópicas. Em virtude de sua importância biológica objetivou-se compreender a...

  18. Epidemiology of open tibia fractures in Nigeria | Ikem | Nigerian ...

    African Journals Online (AJOL)

    Epidemiology of open tibia fractures in Nigeria. ... DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL TEXT Subscription or Fee Access ... A total of 120 patients aged 4-80 years with open tibia fractures were studied. Majority were Gustilo and Anderson type II, 39.2% and type I, 30.8%. The treatment modality was ...

  19. Osteoblastoma-like osteosarcoma of the distal tibia

    Energy Technology Data Exchange (ETDEWEB)

    Abramovici, Luigia; Steiner, German C. [Department of Pathology and Laboratory Medicine, Hospital for Joint Diseases, New York, NY (United States); Kenan, Samuel [Department of Orthopaedic Oncology Surgery, Hospital for Joint Diseases, New York, NY (United States); Hytiroglou, Prodromos [Aristotle University, Thessaloniki (Greece); Rafii, Mahvash [Department of Radiology, Hospital for Joint Diseases, New York, NY (United States)

    2002-03-01

    We report a case of a 14-year-old boy with an intracompartmental lytic lesion with poorly defined margins in the right distal tibia that was originally treated with curettage and bone grafting. Histologic examination showed an osteoblastic tumor with unusual features, which was found on consultation to be an osteoblastoma-like osteosarcoma, a rare, low-grade variant of osteosarcoma. Subsequently, the patient underwent en bloc resection of the distal tibia, which was replaced with vascularized bone graft and followed by chemotherapy. Two years later, he is alive with lung metastases. (orig.)

  20. Osteoblastoma-like osteosarcoma of the distal tibia

    International Nuclear Information System (INIS)

    Abramovici, Luigia; Steiner, German C.; Kenan, Samuel; Hytiroglou, Prodromos; Rafii, Mahvash

    2002-01-01

    We report a case of a 14-year-old boy with an intracompartmental lytic lesion with poorly defined margins in the right distal tibia that was originally treated with curettage and bone grafting. Histologic examination showed an osteoblastic tumor with unusual features, which was found on consultation to be an osteoblastoma-like osteosarcoma, a rare, low-grade variant of osteosarcoma. Subsequently, the patient underwent en bloc resection of the distal tibia, which was replaced with vascularized bone graft and followed by chemotherapy. Two years later, he is alive with lung metastases. (orig.)

  1. Congenital transverse deficiency of the tibia and fibula: a report of two cases

    International Nuclear Information System (INIS)

    Yasui, N.; Nakase, T.; Sahara, W.; Ochi, T.; Okumura, E.; Sato, M.

    2000-01-01

    We report two similar, but unrelated, patients with congenital bilateral partial deficiencies of the tibia and fibula associated with intact feet. In both patients, the tibia and fibula were absent on initial radiographs, while the femur and the tarsal bones were well developed and there was bilateral teratologic dislocation of the hips. Ultrasound and magnetic resonance imaging (MRI) studies suggested the presence of cartilaginous remnants of the tibia and fibula. There were multidirectional instabilities in the knees and ankles. The clinical and radiological features of these cases are distinct from those of congenital longitudinal deficiency of the tibia, in which the fibula is always preserved, and from longitudinal deficiency of the fibula, in which the tibia is present and the foot is usually involved. We suggest that the bilateral partial deficiencies of the tibia and fibula associated with the intact foot and teratologic dislocation of the hips is a single-entity disorder, possibly categorized as an intercalary transverse deficiency of the lower limb. (orig.)

  2. Infantile tibia vara: Treatment of Langenskiold stage IV

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    Umrani Salil

    2008-01-01

    Full Text Available An eight year old girl presented with a progressively increasing deformity of the left proximal tibia since last 2 years. She had no history of trauma, fever and swelling of left knee. There were no obvious signs of rickets/muscular dystrophy. She had 25 degrees of tibia vara clinically with lateral thrust and a prominent fibular head. The radiograph of left knee revealed tibia vara with medial beaking and a significant depression of the medial tibial epiphysis and metaphysis. A computed tomography (CTscan revealed significant depression of the medial tibial epiphysis but no bony bar in the physis or fusion of the medical tibial epiphysis. There was a posterior slope in addition to the medial one. She was treated with elevation of the medial tibial hemiplateau with subtuberosity valgus derotation dome osteotomy. She also underwent a lateral proximal tibial hemiphysiodesis (temporary stapling. A prophylactic subcutaneons anterolateral compartment fasciotomy was also performed. All osteotomies united in 2 months. All deformities were corrected and she regained a knee range of 0 to 130 degrees. At final followup (4 years, there was no recurrence of varus deformity, knee was stable, with 1cm of leg length discrepancy. In Langenskiold stage IV tibia vara, elevation of medial tibial plateau, a subtuberosity valgus derotation osteotomy and a concomitant lateral hemiephiphysiodesis has given good results.

  3. The effect of Moringa oleifera leaf meal supplementation on tibia ...

    African Journals Online (AJOL)

    The tibiae were stored at −18 ºC for BBS and tibia ash determination, as well as analyses of their calcium (Ca) and phosphorus (P) composition. Of birds ... Furthermore, it reveals the effectiveness of MOLM supplementation to enhance nutrient utilization efficiency, increase mineral bioavailability and support bone strength.

  4. Nonunions of the distal tibia treated by reamed intramedullary nailing

    NARCIS (Netherlands)

    Richmond, Jeffrey; Colleran, Kevin; Borens, Olivier; Kloen, Peter; Helfet, David L.

    2004-01-01

    The purpose of this study is to determine the efficacy of reamed intramedullary nailing in the treatment of nonunions of the distal one-fourth of the tibia. Nonunions of the distal tibia are particularly difficult to treat given the short distal segment, the proximity to the ankle joint, and the

  5. OS GRAFITES E AS PICHAÇÕES EM LÍNGUA ESTRANGEIRA NA PAISAGEM LINGUÍSTICA DA CIDADE DE JUIZ DE FORA/MG

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    Mariana Schuchter Soares

    2015-12-01

    Full Text Available RESUMO: O objetivo deste trabalho é discutir a presença de línguas estrangeiras em pichações e grafites na cidade de Juiz de Fora/MG, considerando os tempos de superdiversidade (VERTOVEC, 2007 em que estamos inseridos. A superdiversidade está ligada a fatores como o surgimento e a expansão da Internet, a questões de mobilidade social e ao desenvolvimento da tecnologia em geral, que têm promovido contatos linguístico-culturais muito mais intensos e a ampliação dos repertórios comunicativos (RYMES, 2010. Assim, essa pesquisa de abordagem qualitativa busca descrever essa realidade que existe no mundo inteiro em diferentes graus, considerando dados coletados em entrevistas com pichadores e grafiteiros, e fotografias da paisagem linguística da cidade.

  6. Identification tibia and fibula bone fracture location using scanline algorithm

    Science.gov (United States)

    Muchtar, M. A.; Simanjuntak, S. E.; Rahmat, R. F.; Mawengkang, H.; Zarlis, M.; Sitompul, O. S.; Winanto, I. D.; Andayani, U.; Syahputra, M. F.; Siregar, I.; Nasution, T. H.

    2018-03-01

    Fracture is a condition that there is a damage in the continuity of the bone, usually caused by stress, trauma or weak bones. The tibia and fibula are two separated-long bones in the lower leg, closely linked at the knee and ankle. Tibia/fibula fracture often happen when there is too much force applied to the bone that it can withstand. One of the way to identify the location of tibia/fibula fracture is to read X-ray image manually. Visual examination requires more time and allows for errors in identification due to the noise in image. In addition, reading X-ray needs highlighting background to make the objects in X-ray image appear more clearly. Therefore, a method is required to help radiologist to identify the location of tibia/fibula fracture. We propose some image-processing techniques for processing cruris image and Scan line algorithm for the identification of fracture location. The result shows that our proposed method is able to identify it and reach up to 87.5% of accuracy.

  7. O pilar que ficou: um estudo de conservação em bens patrimoniais a partir do conceito de valor: o caso da Igreja do Pilar do Recife

    OpenAIRE

    Bernardi Della Giustina, Lêda

    2010-01-01

    A crescente busca de reinserção de bens patrimoniais, que estão em desuso ou foram abandonados, nos contextos urbanos atuais, mostra o conflito inerente ao processo de mudança e adaptação de valores. Para discutir essa questão o estudo aqui apresentado, tem como objetivo refletir sobre a conservação de um bem patrimonial religioso em estado de degradação, considerando-se sua desvinculação com o atual contexto descaracterizado em que está inserido. Para tal, pesquisa-se a Igreja...

  8. Longitudinal shapes of the tibia and femur are unrelated and variable.

    Science.gov (United States)

    Howell, Stephen M; Kuznik, Kyle; Hull, Maury L; Siston, Robert A

    2010-04-01

    In general practice, short films of the knee are used to assess component position and define the entry point for intramedullary femoral alignment in TKAs; however, whether it is justified to use the short film commonly used in research settings and everyday practice as a substitute for the whole leg view is controversial and needs clarification. In 138 long leg CT scanograms we measured the angle formed by the anatomic axis of the proximal fourth of the tibia and the mechanical axis of the tibia, the angle formed by the anatomic axis of the distal fourth of the femur and the mechanical axis of the femur, the "bow" of the tibia (as reflected by the offset of the anatomic axis from the center of the talus), and the "bow" of the femur (as reflected by the offset of the anatomic axis from the center of the femoral head). Because the angle formed by these axes and the bow of the tibia and femur have wide variability in females and males, a short film of the knee should not be used in place of the whole leg view when accurate assessment of component position and limb alignment is essential. A previous study of normal limbs found that only 2% of subjects have a neutral hip-knee-ankle axis, which can be explained by the wide variability of the bow in the tibia and femur and the lack of correlation between the bow of the tibia and femur in a given limb as shown in the current study.

  9. Longitudinal stress fracture of the tibia

    International Nuclear Information System (INIS)

    Lopez, J.M.; Onatibia, A.; Galardi, A.; Laso, C.

    1997-01-01

    We present two cases of lengthwise stress fracture in tibia. This is an atypical and uncommon presentation. We describe the major clinical and radiological findings, stressing the enormous importance of CT in the correct diagnosis. (Author) 6 refs

  10. Dinâmica do nível freático e da salinização das águas subterrâneas em áreas irrigadas

    Directory of Open Access Journals (Sweden)

    Eunice Maia de Andrade

    Full Text Available RESUMO Análises físicas e hidroquímicas foram realizadas, em poços rasos, com o objetivo de identificar os impactos da irrigação e da sazonalidade climática no processo de salinização e na dinâmica do nível das águas subterrâneas do Distrito Irrigado do Baixo Acaraú - DIBAU, Ceará. As amostragens foram realizadas em dois períodos: dez/2003 a maio/2007; agosto/2010 a julho/2011, em cinco poços rasos (P1, P2, P3, P4, P5, sendo três deles em campos irrigados. Na identificação da similaridade ou dissimilaridade dos teores de íons sódio (Na+, cloreto (Cl- e nitrato (NO3 - entre as duas épocas estudadas, bem como entre os poços amostrados, aplicou-se a técnica de análise estatística multivariada de agrupamento hierárquico. Os dados médios foram submetidos à análise de teste de média e confrontados pelo Teste T. As águas dos poços inseridos na área de sequeiro apresentaram as maiores concentrações médias de Na+ e Cl-, 123 mg L-1 e 253,2 mg L-1, respectivamente, enquanto os valores médios de NO3 - foram maiores na área irrigada, 16 mg L-1. Identificou-se elevação do nível do lençol freático nos poços inseridos na área irrigada (P3, P4 e P5 de 6,13; 5,25 e 3,40 m, respectivamente. As menores flutuações sazonais do lençol freático ocorreram nos poços inseridos na área irrigada, mostrando excedentes de lâminas de irrigação e recarga desses poços, durante a estação seca. As concentrações de Na+ e de Cl-, nas águas do lençol freático, são determinadas pelos fatores naturais, diferentemente do que ocorre com as do NO3 -.

  11. Ultrasound-Diagnosed Tibia Stress Fracture: A Case Report.

    Science.gov (United States)

    Amoako, Adae; Abid, Ayesha; Shadiack, Anthony; Monaco, Robert

    2017-01-01

    Stress fractures are a frequent cause of lower extremity pain in athletes, and especially in runners. Plain imaging has a low sensitivity. Magnetic resonance imaging (MRI) or bone scan scintigraphy is the criterion standard, but expensive. We present the case of a young female distance runner with left shin pain. Plain radiography was unremarkable. Ultrasound showed focal hyperechoic elevation of the periosteum with irregularity over the distal tibia and increased flow on Doppler. These findings were consistent with a distal tibia stress fracture and confirmed by MRI. Examination of our case will highlight the utility of considering an ultrasound for diagnosis of tibial stress fracture.

  12. Ultrasound-Diagnosed Tibia Stress Fracture: A Case Report

    Directory of Open Access Journals (Sweden)

    Adae Amoako

    2017-04-01

    Full Text Available Stress fractures are a frequent cause of lower extremity pain in athletes, and especially in runners. Plain imaging has a low sensitivity. Magnetic resonance imaging (MRI or bone scan scintigraphy is the criterion standard, but expensive. We present the case of a young female distance runner with left shin pain. Plain radiography was unremarkable. Ultrasound showed focal hyperechoic elevation of the periosteum with irregularity over the distal tibia and increased flow on Doppler. These findings were consistent with a distal tibia stress fracture and confirmed by MRI. Examination of our case will highlight the utility of considering an ultrasound for diagnosis of tibial stress fracture.

  13. Primary unreamed intramedullary locked nailing in open fractures of tibia

    Directory of Open Access Journals (Sweden)

    Jain Vineet

    2005-01-01

    Full Text Available Background: Fractures of tibia are among the commonest fractures sustained in road traffic accidents. They are frequently open and contaminated. Unreamed nails are considered superior to external fixator in the management of open fractures of tibia. Method: Forty patients with open fractures of tibia, grade I, II, IIIa, IIIb were included in the study. They were managed by primary unreamed intramedullary nailing with adequate soft tissue management. Results: Functional results were excellent in 26 cases, good in 10 cases and fair in 4 cases. Four cases had delayed union. Average time of union was 16.9 weeks. Conclusion: Primary unreamed intramedullary nailing offers advantage of rigid fixation, low incidence of infection, non-union, good functional results and early return to work. An adequate soft tissue management is mandatory in treatment of these fractures.

  14. Oncogenic osteomalacia presenting as bilateral stress fractures of the tibia

    International Nuclear Information System (INIS)

    Ohashi, Kenjirou; Ohnishi, Takeshi; Ishikawa, Tohru; Tani, Haruo; Uesugi, Keisuke; Takagi, Masayuki

    1999-01-01

    We report on a patient with bilateral stress fractures of the tibia who subsequently showed classic biochemical features of oncogenic osteomalacia. Conventional radiographs were normal. MR imaging revealed symmetric, bilateral, band-like low-signal lesions perpendicular to the medial cortex of the tibiae and corresponding to the only lesions subsequently seen on the bone scan. A maxillary sinus lesion was subsequently detected and surgically removed resulting in prompt alleviation of symptoms and normalization of hypophosphatemia and low 1,25-(OH) 2 vitamin D 3 . The lesion was pathologically diagnosed as a hemangiopericytoma-like tumor. Patients with oncogenic osteomalacia may present with stress fractures limited to the tibia, as seen in athletes. The clue to the real diagnosis lies in paying close attention to the serum phosphate levels, especially in patients suffering generalized symptoms of weakness and not given to unusual physical activity. (orig.)

  15. Enclavado endomedular en fracturas del tercio distal de la tibia

    OpenAIRE

    Arroquy, Damian; Chahla, Jorge; Gomez Rodriguez, Gustavo; Cid Casteulani, Alberto; Svarzchtein, Santiago; Gomez, Diego; Pesciallo, Cesar

    2015-01-01

    Objetivo: Describir los resultados obtenidos con el enclavado endomedular acerrojado en pacientes con fractura del tercio distal de la tibia. Materiales y Métodos: Se incluyeron pacientes con fracturas desplazadas del tercio distal de la tibia, tratadas con clavo endomedular. La muestra incluyo 35 pacientes. El tiempo de seguimiento posoperatorio fue de 29.2 meses. Se evaluaron el tiempo de consolidacion, la consolidacion viciosa y las complicaciones. Los resultados funcionales se determinaro...

  16. A TRANSFORMAÇÃO SOCIAL DE UMA FERRAMENTA ESTRATÉGICA EM UMA ORGANIZAÇÃO FAMILIAR BRASILEIRA

    Directory of Open Access Journals (Sweden)

    Eros Renato Silva Cardoso

    Full Text Available RESUMO O objetivo deste artigo é compreender o fenômeno de transformação de um software, com potencial para ser uma ferramenta estratégica, pelas construções sociais dos atores inseridos em uma organização familiar brasileira. Defende-se que as ferramentas estratégicas podem ser transformadas pelas construções sociais de seus usuários articuladas nos contextos em que estão inseridos. Para compreender o fenômeno dessas transformações nas ferramentas estratégicas, discute-se a temática da construção social nas organizações, reconhecendo as implicações das especificidades sociais das organizações familiares. Esta pesquisa trouxe uma abordagem fenomenológica do mundo social de Schütz. O lócus do estudo foi uma organização familiar do setor de vendas de equipamentos comerciais no estado do Espírito Santo - Brasil. A coleta de dados se deu a partir de dezessete entrevistas semiestruturadas, observação participante e pesquisa documental. A análise dos dados foi inspirada no método fenomenológico. A justificativa deste trabalho está em contribuir para preencher lacunas de pesquisa sobre a transformação das ferramentas estratégicas no “fazer estratégia” em uma ótica socialmente construída, por meio de articulações teóricas e empíricas. Como resultados, questões como o despreparo, o feeling, as redes de motivos e interesses, as imposições, as heranças do contexto, as tentativas (de manutenção de práticas, a experiência de vida do indivíduo e interesses organizacionais, entre outras, evidenciaram que as transformações da ferramenta foram causadas pelas redes de motivos e interesses, tanto institucionais quanto específicos dos atores sociais, imersos em construções sociais no contexto.

  17. O trabalho em espiral: uma análise do processo de trabalho dos educadores em saúde nas favelas do Rio de Janeiro

    Directory of Open Access Journals (Sweden)

    Marize Bastos da Cunha

    Full Text Available Este artigo busca contribuir para o campo de estudo voltado para o agente comunitário de saúde, recuperando uma pesquisa realizada na área da educação, que investigou o processo de trabalho de agentes comunitários, moradores das favelas, inseridos em programas públicos e também em ONG's, na zona norte do município do Rio de Janeiro. Entre os resultados do estudo destacam-se as determinações e características do processo de trabalho do agente comunitário de saúde, a partir de sua inserção na fronteira e como sujeito portador de experiências, redes de relações sociais e conhecimentos acumulados, ao longo de percursos diversos. Com este recorte, pretende-se ampliar a visão a respeito do papel desempenhado por esses agentes, de forma a favorecer um avanço no debate sobre as possibilidades e limites inscritos nas engrenagens de tais iniciativas.

  18. Oncogenic osteomalacia presenting as bilateral stress fractures of the tibia

    Energy Technology Data Exchange (ETDEWEB)

    Ohashi, Kenjirou; Ohnishi, Takeshi; Ishikawa, Tohru [Department of Radiology, St. Marianna University Hospital, Kanagawa (Japan); Tani, Haruo [Department of Internal Medicine III, St. Marianna University Hospital, Kawasaki City, Kanagawa (Japan); Uesugi, Keisuke [Department of Otolaryngology, St. Marianna University Hospital, Kawasaki City, Kanagawa (Japan); Takagi, Masayuki [Department of Pathology, St. Marianna University Hospital, Kawasaki City, Kanagawa (Japan)

    1999-01-01

    We report on a patient with bilateral stress fractures of the tibia who subsequently showed classic biochemical features of oncogenic osteomalacia. Conventional radiographs were normal. MR imaging revealed symmetric, bilateral, band-like low-signal lesions perpendicular to the medial cortex of the tibiae and corresponding to the only lesions subsequently seen on the bone scan. A maxillary sinus lesion was subsequently detected and surgically removed resulting in prompt alleviation of symptoms and normalization of hypophosphatemia and low 1,25-(OH){sub 2} vitamin D{sub 3}. The lesion was pathologically diagnosed as a hemangiopericytoma-like tumor. Patients with oncogenic osteomalacia may present with stress fractures limited to the tibia, as seen in athletes. The clue to the real diagnosis lies in paying close attention to the serum phosphate levels, especially in patients suffering generalized symptoms of weakness and not given to unusual physical activity. (orig.) With 4 figs., 6 refs.

  19. Bilateral congenital deficiency of tibia: a case report.

    Science.gov (United States)

    Sharma, Vijai; Yadav, Ganesh; Gupta, Anil Kumar; Kumar, Dileep

    2014-01-01

    Tibial hemimelia/amelia is a rare congenital anomaly characterized by deficiency of the tibia with relatively intact fibula. They can be identified as an isolated disorder or as part of malformation syndromes. This presentation expands the spectrum of tibial hemimelia characterizing its great clinical and radiological variability. A five year old female child, born to unaffected and non-consanguineous parents, presented with deformity and shortening of both legs. There was no other structural anomaly except in both lower limbs. Radiological imaging showed absence of the tibia, angulation of fibula and tarsal coalition of right side. Femur was seen to be normal in both lower limbs while patella, tibia and talus were absent on left side along with 1st ray deficiency. Severe varus deformity was seen in both feet. The parents were not willing for corrective surgery, therefore extension prosthesis was devised. We report a case of tibial hemimelia as well as to suggest methods to manage and rehabilitate such patients. A congenital malformations surveillance and record system needs to be developed to identify the demographic parameters, etiology, risk factors and associations of all types of limb deficiencies. Need is felt of a classification system which includes broader spectrum of limb malformations.

  20. Regional bone geometry of the tibia in triathletes and stress reactions--an observational study.

    Science.gov (United States)

    Newsham-West, Richard J; Lyons, Brett; Milburn, Peter D

    2014-03-01

    The association between tibial morphology and tibial stress fractures or tibial stress syndrome was examined in triathletes with an unusually high incidence of these injuries. A cross-sectional study design examined associations between tibial geometry from MRI images and training and injury data between male and female triathletes and between stress fracture (SF) and non-stress fracture (NSF) groups. Fifteen athletes (7 females, 8 males) aged 17-23 years who were currently able to train and race were recruited from the New Zealand Triathlete Elite Development Squad. Geometric measurements were taken at 5 zones along the tibia using MRI and compared between symptomatic and asymptomatic tibiae subjects. SF tibiae displayed either oedema within the cancellous bone and/or stress fracture on MRI. When collapsed across levels, symptomatic tibiae had thicker medial cortices (F1,140=9.285, p=0.003), thicker lateral cortices (F1,140=10.129, p=0.002) and thinner anterior cortices (F1,140=14.517, p=0.000) than NSF tibiae. Only medial cortex thickness in SF tibia was significantly different (F4,140=3.358, p=0.012) at different levels. Follow-up analysis showed that athletes showing oedema within the cancellous bone and/or stress fracture on MRI had, within 2 years of analysis, subsequently taken time off training and racing due a tibial stress fracture. The thinner anterior cortex in SF tibiae is associated with a stress reaction in these triathletes. Copyright © 2013 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

  1. Prognosis of Open Type 3-B Tibia Fractures By Ilizarov Technique: A Prospective Study

    OpenAIRE

    Janak Rathod, Taral Shah

    2012-01-01

    Background: Open fractures of the tibial shaft are both common and may be fraught with complications. Open fractures of the tibia, with associated vascular injuries, have historically had a very poor outcome. Malunion, delayed union, nonunion, and infection are all seen regularly after open tibia fractures. Objectives: Objective of the study is to explore advantage of primary or early ilizarov surgery in Open type 3- B fracture tibia. Methodology: A follow up study of 10 cases of open type 3-...

  2. Rupture of the tuberosity of the tibia

    International Nuclear Information System (INIS)

    Schild, H.; Schwarzkopf, W.

    1981-01-01

    Ruptures of the tuberosity of the tibia occur particularly in male adolescents, although on the whole they represent a rare type of injury. The article discusses classification into different types according to Watson-Jones as well as exemplary models, traumatology, clinic and therapy. (orig.) [de

  3. Primary bone lymphoma of the distal tibia mimicking brodie's abscess

    International Nuclear Information System (INIS)

    Park, Jina; Lee, Seung Hun; Joo, Kyung Bin; Park, Chan Kum

    2014-01-01

    The 'penumbra sign' on an unenhanced T1-weighted image is a well-known characteristic of Brodie's abscess, and this sign is extremely helpful for discriminating subacute osteomyelitis from other bone lesions. We present a case of primary bone lymphoma of the distal tibia mimicking subacute osteomyelitis with Brodie's abscess in a 50-year-old woman. Initial radiographs and MRI showed a lesion in the distal tibia consistent with Brodie's abscess with the penumbra sign. Histopathological examination of the surgical biopsy specimen confirmed the presence of a diffuse large B-cell lymphoma involving the bone.

  4. Desafios da Saúde Global para a educação de profissionais de saúde: (re)definição de modos de produção de conhecimento em iniciativas de combate às desigualdades de saúde

    OpenAIRE

    Ferreira, Patrícia Moreira

    2013-01-01

    O artigo parte da discussão de uma das dimensões associadas à Saúde Global - o seu envolvimento nas dinâmicas de produção de conhecimento “globalizado” sobre saúde, na sua disseminação através de modelos de transferência de conhecimento e implementação em diversos locais ou lugares. Argumenta-se que os programas de educação de profissionais de saúde, inseridos em iniciativas de Saúde Global de combate às desigualdades de saúde, se sustenta em orientações definidas internacionalmente que promo...

  5. O ensino de historia nas escolas estaduais de 2o.grau em londrina (1971-1982)

    OpenAIRE

    Almeida, Mariana Josefa de Carvalho

    2012-01-01

    RESUMO Est-e trabalho tem como objeto de análise o ensino de História, abrangendo o de História do Brasil, no 2S grau, em Londrina C1971-19823 inserido num dado contexto histórico. Buscou verificar se os conteúdos trabalhados pelos professores e alunos teve como referencial a concepção "Tradicional de História" ou sfe a abordagem se deu sob a influencia de concepções contemporâneas, sendo observadas as transforma- oI ções e detectadas as permanências presentes no cotidiano escolar. Foram ...

  6. Proximal Tibia Bone Graft: An alternative Donor Source especially for Foot and Ankle Procedures

    Directory of Open Access Journals (Sweden)

    Jia TY

    2015-03-01

    Full Text Available Among the many donor sites for harvesting autologous bone graft, the iliac crest has been the most commonly used. However, for foot and ankle procedures the proximal tibia has gained popularity as an alternative donor site due to its anatomic proximity to the primary surgical site. In this article we evaluated the possible complications associated with harvesting proximal tibia bone graft. Our study showed the low incidence of morbidity in harvesting proximal tibia bone graft, thereby providing a good alternative donor for foot and ankle procedures.

  7. Bone Morphology in 46 BXD Recombinant Inbred Strains and Femur-Tibia Correlation

    Directory of Open Access Journals (Sweden)

    Yueying Zhang

    2015-01-01

    Full Text Available We examined the bone properties of BXD recombinant inbred (RI mice by analyzing femur and tibia and compared their phenotypes of different compartments. 46 BXD RI mouse strains were analyzed including progenitor C57BL/6J (n=16 and DBA/2J (n=15 and two first filial generations (D2B6F1 and B6D2F1. Strain differences were observed in bone quality and structural properties (P<0.05 in each bone profile (whole bone, cortical bone, or trabecular bone. It is well known that skeletal phenotypes are largely affected by genetic determinants and genders, such as bone mineral density (BMD. While genetics and gender appear expectedly as the major determinants of bone mass and structure, significant correlations were also observed between femur and tibia. More importantly, positive and negative femur-tibia associations indicated that genetic makeup had an influence on skeletal integrity. We conclude that (a femur-tibia association in bone morphological properties significantly varies from strain to strain, which may be caused by genetic differences among strains, and (b strainwise variations were seen in bone mass, bone morphology, and bone microarchitecture along with bone structural property.

  8. Stress fractures of the proximal tibia in runners

    International Nuclear Information System (INIS)

    Daffner, R.H.; Martinez, S.; Gehweiler, J.A.; Harrelson, J.M.

    1982-01-01

    Stress fractures developed along the popliteal-solean line of the posteromedial surface of the tibia in 4 patients as the result of running. Radionuclide bone scans may be useful in early diagnosis of such injuries

  9. An unusual stress fracture: Bilateral posterior longitudinal stress fracture of tibia.

    Science.gov (United States)

    Malkoc, Melih; Korkmaz, Ozgur; Ormeci, Tugrul; Oltulu, Ismail; Isyar, Mehmet; Mahirogulları, Mahir

    2014-01-01

    Stress fractures (SF) occur when healthy bone is subjected to cyclic loading, which the normal carrying range capacity is exceeded. Usually, stress fractures occur at the metatarsal bones, calcaneus, proximal or distal tibia and tends to be unilateral. This article presents a 58-year-old male patient with bilateral posterior longitudinal tibial stress fractures. A 58 years old male suffering for persistent left calf pain and decreased walking distance for last one month and after imaging studies posterior longitudinal tibial stress fracture was detected on his left tibia. After six months the patient was admitted to our clinic with the same type of complaints in his right leg. All imaging modalities and blood counts were performed and as a result longitudinal posterior tibial stress fractures were detected on his right tibia. Treatment of tibial stress fracture includes rest and modified activity, followed by a graded return to activity commensurate with bony healing. We have applied the same treatment protocol and our results were acceptable but our follow up time short for this reason our study is restricted for separate stress fractures of the posterior tibia. Although the main localization of tibial stress fractures were unilateral, anterior and transverse pattern, rarely, like in our case, the unusual bilateral posterior localization and longitudinal pattern can be seen. Copyright © 2014 The Authors. Published by Elsevier Ltd.. All rights reserved.

  10. Adjuvant combined ozone therapy for extensive wound over tibia

    Directory of Open Access Journals (Sweden)

    Prasham Shah

    2011-01-01

    Full Text Available Disinfectant and antibacterial properties of ozone are utilized in the treatment of nonhealing or ischemic wounds. We present here a case of 59 years old woman with compartment syndrome following surgical treatment of stress fracture of proximal tibia with extensively infected wound and exposed tibia to about 4/5 of its extent. The knee joint was also infected with active pus draining from a medial wound. At presentation the patient had already taken treatment for 15 days in the form of repeated wound debridements and parenteral antibiotics, which failed to heal the wound and she was advised amputation. Topical ozone therapy twice daily and ozone autohemotherapy once daily were given to the patient along with daily dressings and parenteral antibiotics. Within 5 days, the wound was healthy enough for spilt thickness skin graft to provide biological dressing to the exposed tibia bone. Topical ozone therapy was continued for further 5 days till the knee wound healed. On the 15th day, implant removal, intramedullary nailing, and latissimus dorsi pedicle flap were performed. Both the bone and the soft tissue healed without further complications and at 20 months follow-up, the patient was walking independently with minimal disability.

  11. Limb saving surgery for Ewing's sarcoma of the distal tibia: a case report.

    Science.gov (United States)

    Mizoshiri, Naoki; Shirai, Toshiharu; Terauchi, Ryu; Tsuchida, Shinji; Mori, Yuki; Katsuyama, Yusei; Hayashi, Daichi; Oka, Yoshinobu; Kubo, Toshikazu

    2018-05-02

    Ewing's sarcoma is a primary malignant tumor of bone occurring mostly in childhood. Few effective reconstruction techniques are available after wide resection of Ewing's sarcoma at the distal end of the tibia. Reconstruction after wide resection is especially difficult in children, as it is necessary to consider the growth and activity of the lower limbs. A 12-year-old Japanese boy had presented with right lower leg pain at age 8 years. Imaging examination showed a bone tumor accompanied by a large extra-skeletal mass in the distal part of his tibia. The tumor was histologically diagnosed as Ewing's sarcoma. The patient received chemotherapy, followed by wide resection. Reconstruction consisted of a bone transport method involving external fixation of Taylor Spatial Frame. To prevent infection after surgery, the external fixation pin was coated with iodine. One year after surgery, the patient showed poor consolidation of bone, so iliac bone transplantation was performed on the extended bones and docking site of the distal tibia. After 20 months, tibia formation was good. Three years after surgery, there was no evidence of tumor recurrence or metastases; bone fusion was good, and he was able to run. The bone transport method is an effective surgical method of reconstruction after wide resection of a bone tumor at the distal end of the tibia, if a pin can be inserted into the distal bone fragment. Coating external fixation pins with iodine may prevent postoperative infection.

  12. X-Ray Exam: Lower Leg (Tibia and Fibula)

    Science.gov (United States)

    ... Staying Safe Videos for Educators Search English Español X-Ray Exam: Lower Leg (Tibia and Fibula) KidsHealth / For ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

  13. Habilidades cognitivo-linguísticas e segmentação lexical em Braille

    Directory of Open Access Journals (Sweden)

    Clarissa de Arruda Nicolaiewsky

    2009-12-01

    Full Text Available O presente estudo examinou a relação entre habilidades cognitivas e linguísticas e segmentação lexical na produção textual em braille de 21 alunos dos três primeiros anos do ensino fundamental de instituição especializada em deficiência visual. A habilidade de demarcar os limites das palavras no texto é desenvolvida ao longo do processo de aquisição da língua escrita, sendo fundamental para a compreensão textual. Foi investigada a ocorrência de hipossegmentações (junção de duas ou mais palavras e hipersegmentações (espaço indevido inserido em uma palavra na produção escrita de histórias. Houve predominância de hipossegmentações. Os participantes que apresentaram maior número de hipossegmentações em sua escrita obtiveram desempenho mais baixo nas tarefas referentes à habilidade verbal, memória de trabalho, consciência morfológica e leitura. Em oposição, aqueles que realizaram menos transgressões obtiveram melhor desempenho nessas tarefas. A elaboração de práticas pedagógicas que enfoquem habilidades cognitivas e linguísticas facilitaria a aquisição da língua escrita em braille.

  14. Congenital osteofibrous dysplasia associated with pseudoarthrosis of the tibia and fibula

    International Nuclear Information System (INIS)

    Teo, Harvey E.L.; Peh, Wilfred C.G.; Akhilesh, M.; Tan, S.B.; Ishida, T.

    2007-01-01

    The association between congenital pseudoarthrosis and osteofibrous dysplasia of the tibia and fibula is a rare entity that has been recently recognized. We report a male newborn who was found to have swelling and deformity of the left lower leg. Radiographs and magnetic resonance imaging showed an extensive destructive lesion of the tibial shaft, with dysplastic congenital pseudoarthrosis of the lower fibula. Histopathologial examination confirmed the diagnosis of congenital pseudoarthrosis of the tibia and fibula with underlying osteofibrous dysplasia involving both bones. Immunohistochemical stains showed cytokeratin positivity. (orig.)

  15. Osteossíntese de úmero por xenoenxerto ósseo preservado em mel em pombos domésticos (Columba livia

    Directory of Open Access Journals (Sweden)

    Gaiga Leandro Haczkiewicz

    2003-01-01

    Full Text Available Este experimento teve por objetivo avaliar clínica, histológica e radiograficamente o emprego de fíbula e tíbia canina, preservadas em mel, no tratamento de fratura transversa diafisária de úmero em pombos domésticos (Columba livia. Foram estudados 14 pombos. A indução e a manutenção da anestesia foi feita com halotano e a fratura foi realizada na diáfise do úmero direito com serra oscilatória, e, logo após, estabilizada por xenoenxerto ósseo inserido dentro do canal medular e associado a fio de aço interfragmentar. O tempo médio e o desvio padrão para restabelecimento do vôo foi de 24,81 + 3,65 dias.O tempo médio e o desvio padrão para a consolidação óssea foram de 41 + 4,74 dias. Uma ave não apresentou consolidação óssea. Ocorreu reabsorção do xenoenxerto aos 180 dias. A técnica proposta é eficiente para o tratamento de fratura de úmero em pombos domésticos (Columba livia. Os resultados obtidos nesse experimento demonstram que o mel é adequado como meio de preservação de xenoenxerto ósseo cortical.

  16. Platelet-rich plasma in bone repair of irradiated tibiae of Wistar rats

    International Nuclear Information System (INIS)

    Gumieiro, Emne Hammoud; Abrahao, Marcio; Jahn, Ricardo Schmitutz; Segretto, Helena; Alves, Maria Tereza de Seixas; Nannmark, Ulf; Granstroem, Goesta; Dib, Luciano Lauria

    2010-01-01

    Purpose: to evaluate the influence of PRP addition on bone repair of circular defects created in irradiated tibiae of rats by histometric analysis. Methods: sixty male Wistar rats had the right tibiae irradiated with 30 Gy. After 30 days monocortical defects were created and platelet-rich plasma as applied in 30 rats. In the control group defects were created but not filled. The animals were sacrificed after 4, 7, 14, 21, 56 and 84 days and the tibiae removed for histological processing. Results: there was a tendency in the PRP group to increased bone neoformation from 14-days to 84-days; in the control group increased bone neoformation was not seen after 21 days or later. Conclusion: the addition of platelet-rich plasma had a beneficial effect in the initial cellular regeneration period and enhanced bone formation in later periods when compared to control. (author)

  17. Minimally invasive percutaneous plate fixation of distal tibia fractures.

    LENUS (Irish Health Repository)

    Bahari, Syah

    2007-10-01

    We report a series of 42 patients reviewed at a mean of 19.6 months after treatment of distal tibial and pilon fractures using the AO distal tibia locking plate with a minimally invasive percutaneous plate osteosynthesis (MIPPO) technique. Mean time to union was 22.4 weeks. All fractures united with acceptable alignment and angulation. Two cases of superficial infection were noted, with one case of deep infection. Mean SF36 score was 85 and mean AOFAS score was 90 at a mean of 19 months follow-up. We report satisfactory outcomes with the use of the AO distal tibia locking plate in treatment of unstable distal tibial fractures. Eighty-nine percent of the patients felt that they were back to their pre injury status and 95% back to their previous employment.

  18. Hypoxia inhibits hypertrophic differentiation and endochondral ossification in explanted tibiae.

    Directory of Open Access Journals (Sweden)

    Jeroen C H Leijten

    Full Text Available Hypertrophic differentiation of growth plate chondrocytes induces angiogenesis which alleviates hypoxia normally present in cartilage. In the current study, we aim to determine whether alleviation of hypoxia is merely a downstream effect of hypertrophic differentiation as previously described or whether alleviation of hypoxia and consequent changes in oxygen tension mediated signaling events also plays an active role in regulating the hypertrophic differentiation process itself.Fetal mouse tibiae (E17.5 explants were cultured up to 21 days under normoxic or hypoxic conditions (21% and 2.5% oxygen respectively. Tibiae were analyzed on growth kinetics, histology, gene expression and protein secretion.The oxygen level had a strong influence on the development of explanted fetal tibiae. Compared to hypoxia, normoxia increased the length of the tibiae, length of the hypertrophic zone, calcification of the cartilage and mRNA levels of hypertrophic differentiation-related genes e.g. MMP9, MMP13, RUNX2, COL10A1 and ALPL. Compared to normoxia, hypoxia increased the size of the cartilaginous epiphysis, length of the resting zone, calcification of the bone and mRNA levels of hyaline cartilage-related genes e.g. ACAN, COL2A1 and SOX9. Additionally, hypoxia enhanced the mRNA and protein expression of the secreted articular cartilage markers GREM1, FRZB and DKK1, which are able to inhibit hypertrophic differentiation.Collectively our data suggests that oxygen levels play an active role in the regulation of hypertrophic differentiation of hyaline chondrocytes. Normoxia stimulates hypertrophic differentiation evidenced by the expression of hypertrophic differentiation related genes. In contrast, hypoxia suppresses hypertrophic differentiation of chondrocytes, which might be at least partially explained by the induction of GREM1, FRZB and DKK1 expression.

  19. Fracture configurations of the equine radius and tibia after a simulated kick

    OpenAIRE

    Fürst, Anton; Oswald, Susanne E; Jäggin, S; Piskoty, G; Michel, S; Auer, Jörg A

    2008-01-01

    The objective of this postmortem study was to determine the fracture configurations of the equine radius and tibia after a simulated kick. Fracture configurations of 35 radii and 36 tibiae from 19 adult horses were evaluated after a simulated kick in an experimental exvivo study. The bones were dissected, the proximal and distal ends were embedded in resin, fixed horizontally and preloaded in compression, and a steel impactor, designed to simulate a shod equine hoof, was dropped from a height...

  20. Percutaneous Screw Fixation of Distal Tibia Fractures – Functional Results in Sixteen Patients

    OpenAIRE

    Kaftandziev, Igor; Trpeski, Simon; Arsovski, Oliver; Spasov, Marko

    2014-01-01

    INTRODUCTION: An important feature of distal tibia fractures is the relevance of the soft tissue coverage. In order to maintain good functional outcome, several operative techniques have been established. Among them, percutaneous screw fixation has the advantage of causing less biological damage of the soft tissues with lower rates of complications. MATERIAL AND METHODS: We reviewed 16 patients with distal tibia fracture. Operative treatment consisted of indirect reduction and percutaneou...

  1. Bone lead (Pb) content at the tibia is associated with thinner distal tibia cortices and lower volumetric bone density in postmenopausal women

    Science.gov (United States)

    Wong, Andy K.O.; Beattie, Karen A.; Bhargava, Aakash; Cheung, Marco; Webber, Colin E.; Chettle, David R.; Papaioannou, Alexandra; Adachi, Jonathan D.

    2016-01-01

    Conflicting evidence suggests that bone lead or blood lead may reduce areal bone mineral density (BMD). Little is known about how lead at either compartment affects bone structure. This study examined postmenopausal women (N = 38, mean age 76 ± 8, body mass index (BMI): 26.74 ± 4.26 kg/m2) within the Hamilton cohort of the Canadian Multicentre Osteoporosis Study (CaMos), measuring bone lead at 66% of the non-dominant leg and at the calcaneus using 109Cadmium X-ray fluorescence. Volumetric BMD and structural parameters were obtained from peripheral quantitative computed tomography images (200 μm in-plane resolution, 2.3 ± 0.5 mm slice thickness) of the same 66% site and of the distal 4% site of the tibia length. Blood lead was measured using atomic absorption spectrometry and blood-to-bone lead partition coefficients (PBB, log ratio) were computed. Multivariable linear regression examined each of bone lead at the 66% tibia, calcaneus, blood lead and PBB as related to each of volumetric BMD and structural parameters, adjusting for age and BMI, diabetes or antiresorptive therapy. Regression coefficients were reported along with 95% confidence intervals. Higher amounts of bone lead at the tibia were associated with thinner distal tibia cortices (−0.972 (−1.882, −0.061) per 100 μg Pb/g of bone mineral) and integral volumetric BMD (−3.05 (−6.05, −0.05) per μg Pb/g of bone mineral). A higher PBB was associated with larger trabecular separation (0.115 (0.053, 0.178)), lower trabecular volumetric BMD (−26.83 (−50.37, −3.29)) and trabecular number (−0.08 (−0.14, −0.02)), per 100 μg Pb/g of bone mineral after adjusting for age and BMI, and remained significant while accounting for diabetes or use of antiresorptives. Total lead exposure activities related to bone lead at the calcaneus (8.29 (0.11, 16.48)) and remained significant after age and antiresorptives-adjustment. Lead accumulated in bone can have a mild insult on bone structure; but

  2. Noninvasive Raman spectroscopy of rat tibiae: approach to in vivo assessment of bone quality

    Science.gov (United States)

    Okagbare, Paul I.; Begun, Dana; Tecklenburg, Mary; Awonusi, Ayorinde; Goldstein, Steven A.

    2012-01-01

    Abstract. We report on in vivo noninvasive Raman spectroscopy of rat tibiae using robust fiber-optic Raman probes and holders designed for transcutaneous Raman measurements in small animals. The configuration allows placement of multiple fibers around a rat leg, maintaining contact with the skin. Bone Raman data are presented for three regions of the rat tibia diaphysis with different thicknesses of overlying soft tissue. The ability to perform in vivo noninvasive Raman measurement and evaluation of subtle changes in bone composition is demonstrated with rat leg phantoms in which the tibia has carbonated hydroxylapatite, with different carbonate contents. Our data provide proof of the principle that small changes in bone composition can be monitored through soft tissue at anatomical sites of interest in biomedical studies. PMID:23085899

  3. AGUA TIBIA PRIMITIVE AREA, CALIFORNIA.

    Science.gov (United States)

    Irwin, William P.; Thurber, Horace K.

    1984-01-01

    The Agua Tibia Primitive Area in southwestern California is underlain by igneous and metamorphic rocks that are siilar to those widely exposed throughout much of the Peninsular Ranges. To detect the presence of any concealed mineral deposits, samples of stream sediments were collected along the various creeks that head in the mountain. As an additional aid in evaluating the mineral potential, an aeromagnetic survey was made and interpreted. A search for records of past or existing mining claims within the primitive area was made but none was found. Evidence of deposits of metallic or nonmetallic minerals was not seen during the study.

  4. Synchronous symmetrical atypical osteoid osteoma of tibia: a case report.

    Science.gov (United States)

    Sreenivas, T; Menon, Jagdish; Nataraj, A R

    2012-11-01

    We report a case of synchronous symmetrical osteoid osteoma of tibia which was atypical in its appearance on imaging. Our patient was a 30-year-old woman presented with 2 years history of bilateral leg pain more on the right side. The pain was more during night and relieved on taking salicylates. Laboratory investigations were within normal limits. Radiographs and computed tomography revealed bilateral focal irregular cortical sclerosis with narrowing of medullary canal of mid tibia. The lesion on right side was excised enbloc followed by the lesion on left side 3 months later and histologically confirmed as osteoid osteoma. Initially, we thought it was stress fracture or subacute osteomyelitis but it was in fact histopathology which showed osteoid osteoma. Patient was completely asymptomatic postoperatively.

  5. Biopoder e UPPs: alteridade na experiência do policiamento permanente em comunidades cariocas

    Directory of Open Access Journals (Sweden)

    Thiago Benedito Livramento Melicio

    2012-12-01

    Full Text Available O artigo visa refletir sobre a experiência do efetivo policial permanente em dois conjuntos de comunidades cariocas, inserido no escopo das Unidades de Polícia Pacificadora (UPP. Foram realizados dois estudos exploratórios, em agosto e dezembro de 2010. Na esteira do conceito foucaultiano de biopoder, discute-se a UPP como rede de relações de poder que a compõe e a legitima, pensando-se o local em que se instala, a política de Estado a que responde, os atores com que opera e as produções históricas das relações entre Estado e territórios populares. O campo de análise constitui-se, assim, nas práticas e saberes localizados no cotidiano e nos efeitos produzidos com a presença do policial na paisagem da favela. Se novas regras são trazidas com as UPPs, novas identificações são mobilizadas e as modulações de conjunto abrem lacunas, o governo de si não se produz sozinho, mas combina-se com diversidades na gestão da vida.

  6. On the relationship between tibia torsional deformation and regional muscle contractions in habitual human exercises in vivo.

    Science.gov (United States)

    Yang, Peng-Fei; Kriechbaumer, Andreas; Albracht, Kirsten; Sanno, Maximilian; Ganse, Bergita; Koy, Timmo; Shang, Peng; Brüggemann, Gert-Peter; Müller, Lars Peter; Rittweger, Jörn

    2015-02-05

    The mechanical relationship between bone and muscle has been long recognized. However, it still remains unclear how muscles exactly load on bone. In this study, utilizing an optical segment tracking technique, the in vivo tibia loading regimes in terms of tibia segment deformation in humans were investigated during walking, forefoot and rear foot stair ascent and running and isometric plantar flexion. Results suggested that the proximal tibia primarily bends to the posterior aspect and twists to the external aspect with respect to the distal tibia. During walking, peak posterior bending and peak torsion occurred in the first half (22%) and second half (76%) of the stance phase, respectively. During stair ascent, two noticeable peaks of torsion were found with forefoot strike (38% and 82% of stance phase), but only one peak of torsion was found with rear foot strike (78% of stance phase). The torsional deformation angle during both stair ascent and running was larger with forefoot strike than rear foot strike. During isometric plantar flexion, the tibia deformation regimes were characterized more by torsion (maximum 1.35°) than bending (maximum 0.52°). To conclude, bending and torsion predominated the tibia loading regimes during the investigated activities. Tibia torsional deformation is closely related to calf muscle contractions, which further confirm the notion of the muscle-bone mechanical link and shift the focus from loading magnitude to loading regimes in bone mechanobiology. It thus is speculated that torsion is another, yet under-rated factor, besides the compression and tension, to drive long bone mechano-adaptation. Copyright © 2014 Elsevier Ltd. All rights reserved.

  7. Assistência domiciliária em saúde: um olhar crítico sobre a produção científica de enfermagem

    Directory of Open Access Journals (Sweden)

    Ana Larissa Gomes Machado

    2011-04-01

    Full Text Available Objetivou-se analisar a produção científica da enfermagem acerca da assistência domiciliar em saúde, a partir de levantamento bibliográfico em endereços eletrônicos de periódicos de enfermagem, relativos ao período de 2000 a 2007. Identificaram-se duas temáticas: organização da assistência domiciliária e percepção dos cuidadores e de suas famílias acerca do cuidado domiciliário. Observou-se o interesse dos autores em definir conceitos que traduzem as formas de organização da assistência profissional no domicílio e em identificar as características dos cuidadores e de seus familiares. Em conclusão, a enfermagem tem inserido o cuidado no domicílio como objeto de suas pesquisas, mas ainda de forma incipiente, fato que reforça a necessidade de ampliação e divulgação das investigações da profissão.

  8. Stress fracture as a complication of autogenous bone graft harvest from the distal tibia.

    Science.gov (United States)

    Chou, Loretta B; Mann, Roger A; Coughlin, Michael J; McPeake, William T; Mizel, Mark S

    2007-02-01

    Autogenous bone graft from the distal tibia provides cancellous bone graft for foot and ankle operations, and it has osteogenic and osteoconductive properties. The site is in close proximity to the foot and ankle, and published retrospective studies show low morbidity from the procedure. One-hundred autografts were obtained from the distal tibia between 2000 and 2003. In four cases the distal tibial bone graft harvest resulted in a stress fracture. There were three women and one man. The average time of diagnosis of the stress fracture from the operation was 1.8 months. All stress fractures healed with a short course (average 2.4 months) of cast immobilization. This study demonstrated that a stress fracture from the donor site of autogenous bone graft of the distal tibia occurs and can be successfully treated nonoperatively.

  9. The anterior tilt angle of the proximal tibia epiphyseal plate: a significant radiological finding in young children with trampoline fractures.

    Science.gov (United States)

    Stranzinger, Enno; Leidolt, Lars; Eich, Georg; Klimek, Peter Michael

    2014-08-01

    Evaluation of the anterior tilt angle of the proximal tibia epiphyseal plate in young children, which suffered a trampoline fracture in comparison with a normal population. 62 children (31 females, 31 males) between 2 and 5 years of age (average 2 years 11 months, standard deviation 11 months) with radiographs in two views of the tibia were included in this retrospective study. 25 children with proximal tibia fractures were injured with a history of jumping on a trampoline. All other causes for tibia fractures were excluded. A normal age-mapped control cohort of 37 children was compared. These children had neither evidence of a trampoline related injury nor a fracture of the tibia. The anterior tilt angle of the epiphyseal plate of the tibia was defined as an angle between the proximal tibia physis and the distal tibia physis on a lateral view. Two radiologists evaluated all radiographs for fractures and measured the anterior tilt angle in consensus. An unpaired Student's t-test was used for statistical analysis (SPSS). Original reports were reviewed and compared with the radiological findings and follow-up radiographs. In the normal control group, the average anterior tilt angle measured -3.2°, SD ± 2.8°. The children with trampoline fractures showed an anterior tilt of +4.4°, SD ± 2.9°. The difference was statistically significant, Ptrampoline. These fractures may be very subtle and difficult to detect on initial radiographs. Measurement of the anterior tilt angle of the proximal tibia epiphyseal plate on lateral radiographs is supportive for interpreting correctly trampoline fractures. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  10. Effect of sodium selenite on bone repair in tibiae of irradiated rats

    International Nuclear Information System (INIS)

    Rocha, Anna Silvia Setti da; Ramos-Perez, Flavia Maria de Moraes; Boscolo, Frab Norberto; Almeida, Solange Maria; Manzi, Flavio Ricardo; Chicareli, Mariliani

    2009-01-01

    This study evaluated the radioprotective effect of sodium selenite on the bone repair process in tibiae of female rats. For such purpose, 100 female Wistar rats (Rattus norvegicus, albinus) were randomly assigned to 4 groups (n=25), according to the treatment received: administration of distilled water (control); administration of sodium selenite; gamma radiation; and administration of sodium selenite plus gamma radiation. A bone defect was prepared on both tibiae of all animals. Three days after surgery, the gamma radiation and selenium/ gamma radiation groups received 8 Gy gamma rays on the lower limbs. Five animals per group were sacrificed 7, 14, 21, 28 days after surgery for evaluation of the repair process by bone volumetric density analysis. The 5 animals remaining in each group were sacrificed 45 days postoperatively for examination of the mature bone by scanning electron microscopy. Based on all analyzed parameters, the results of the present study suggest that sodium selenite exerted a radioprotective effect in the bone repair of tibia of irradiated rats. (author)

  11. Effect of sodium selenite on bone repair in tibiae of irradiated rats

    Energy Technology Data Exchange (ETDEWEB)

    Rocha, Anna Silvia Setti da [Universidade Tecnologica Federal do Parana (UTFPR), Curitiba, PR, (Brazil). Dept. of Physics; Ramos-Perez, Flavia Maria de Moraes; Boscolo, Frab Norberto; Almeida, Solange Maria [Universidade Estadual de Campinas (UNICAMP), Piracicaba, SP (Brazil). Piracicaba Dental School. Dept. of Oral Diagnosis], e-mail: flaviamaria@fop.unicamp.br; Manzi, Flavio Ricardo [Pontifical Catholic University of Minas Gerais (PUC-MG), Belo Horizonte, MG (Brazil). Dept. of Stomatology; Chicareli, Mariliani [State Univ. of Maringa, PR (Brazil). Dept. of Oral Diagnosis

    2009-07-01

    This study evaluated the radioprotective effect of sodium selenite on the bone repair process in tibiae of female rats. For such purpose, 100 female Wistar rats (Rattus norvegicus, albinus) were randomly assigned to 4 groups (n=25), according to the treatment received: administration of distilled water (control); administration of sodium selenite; gamma radiation; and administration of sodium selenite plus gamma radiation. A bone defect was prepared on both tibiae of all animals. Three days after surgery, the gamma radiation and selenium/ gamma radiation groups received 8 Gy gamma rays on the lower limbs. Five animals per group were sacrificed 7, 14, 21, 28 days after surgery for evaluation of the repair process by bone volumetric density analysis. The 5 animals remaining in each group were sacrificed 45 days postoperatively for examination of the mature bone by scanning electron microscopy. Based on all analyzed parameters, the results of the present study suggest that sodium selenite exerted a radioprotective effect in the bone repair of tibia of irradiated rats. (author)

  12. A rabeca de Vilemão Trindade em Mario de Andrade

    Directory of Open Access Journals (Sweden)

    Jorge Linemburg Jr

    2012-12-01

    Full Text Available Este estudo tem como objetivos detectar e especificar o material referente às rabecas inserido na obra de Mário de Andrade, através da pesquisa de fontes deste autor e de manuscritos localizados no Instituto de Estudos Brasileiros (IEB-USP, e posterior prática musical desses exemplos na rabeca. Os dados musicais obtidos nesta pesquisa se apresentam como ponto de partida para a exploração do universo popular de tradição oral referente às rabecas, ao mesmo tempo em que apontam para o desvelamento das rabecas em Mário de Andrade. Revelam que Andrade teve como informante um hábil rabequeiro, Vilemão da Trindade, o que nos abre hoje a possibilidade de entender esse material a partir de uma perspectiva êmica, na qual a rabeca assume potencialidade musical própria. A principal ferramenta de análise utilizada foi o conceito de Padrões Acústicos Mocionais. Esses exemplos colocam em evidência a importância do gesto musical para a análise de cunho fenomenológico, desvinculando-se do distanciamento e da racionalidade da notação na partitura.

  13. The anterior tilt angle of the proximal tibia epiphyseal plate: A significant radiological finding in young children with trampoline fractures

    Energy Technology Data Exchange (ETDEWEB)

    Stranzinger, Enno, E-mail: enno.stranzinger@insel.ch [University Hospital Bern, Inselspital, Department of Diagnostic, Interventional and Pediatric Radiology, CH-3010 Bern (Switzerland); Leidolt, Lars, E-mail: lars.leidolt@insel.ch [University Hospital Bern, Inselspital, Department of Diagnostic, Interventional and Pediatric Radiology, CH-3010 Bern (Switzerland); Eich, Georg, E-mail: georg.eich@ksa.ch [Cantonal Hospital Aarau, Pediatric Radiology, Tellstrasse, CH-5001 Aarau (Switzerland); Klimek, Peter Michael, E-mail: peter.klimek@ksa.ch [Cantonal Hospital Aarau, Pediatric Surgery, Tellstrasse, CH-5001 Aarau (Switzerland)

    2014-08-15

    Objective: Evaluation of the anterior tilt angle of the proximal tibia epiphyseal plate in young children, which suffered a trampoline fracture in comparison with a normal population. Materials and methods: 62 children (31 females, 31 males) between 2 and 5 years of age (average 2 years 11 months, standard deviation 11 months) with radiographs in two views of the tibia were included in this retrospective study. 25 children with proximal tibia fractures were injured with a history of jumping on a trampoline. All other causes for tibia fractures were excluded. A normal age-mapped control cohort of 37 children was compared. These children had neither evidence of a trampoline related injury nor a fracture of the tibia. The anterior tilt angle of the epiphyseal plate of the tibia was defined as an angle between the proximal tibia physis and the distal tibia physis on a lateral view. Two radiologists evaluated all radiographs for fractures and measured the anterior tilt angle in consensus. An unpaired Student's t-test was used for statistical analysis (SPSS). Original reports were reviewed and compared with the radiological findings and follow-up radiographs. Results: In the normal control group, the average anterior tilt angle measured −3.2°, SD ± 2.8°. The children with trampoline fractures showed an anterior tilt of +4.4°, SD ± 2.9°. The difference was statistically significant, P < 0.0001. In 6 patients (24% of all patients with confirmed fractures) the original report missed to diagnose the proximal tibial fracture. Conclusion: Young children between 2 and 5 years of age are at risk for proximal tibia fractures while jumping on a trampoline. These fractures may be very subtle and difficult to detect on initial radiographs. Measurement of the anterior tilt angle of the proximal tibia epiphyseal plate on lateral radiographs is supportive for interpreting correctly trampoline fractures.

  14. The anterior tilt angle of the proximal tibia epiphyseal plate: A significant radiological finding in young children with trampoline fractures

    International Nuclear Information System (INIS)

    Stranzinger, Enno; Leidolt, Lars; Eich, Georg; Klimek, Peter Michael

    2014-01-01

    Objective: Evaluation of the anterior tilt angle of the proximal tibia epiphyseal plate in young children, which suffered a trampoline fracture in comparison with a normal population. Materials and methods: 62 children (31 females, 31 males) between 2 and 5 years of age (average 2 years 11 months, standard deviation 11 months) with radiographs in two views of the tibia were included in this retrospective study. 25 children with proximal tibia fractures were injured with a history of jumping on a trampoline. All other causes for tibia fractures were excluded. A normal age-mapped control cohort of 37 children was compared. These children had neither evidence of a trampoline related injury nor a fracture of the tibia. The anterior tilt angle of the epiphyseal plate of the tibia was defined as an angle between the proximal tibia physis and the distal tibia physis on a lateral view. Two radiologists evaluated all radiographs for fractures and measured the anterior tilt angle in consensus. An unpaired Student's t-test was used for statistical analysis (SPSS). Original reports were reviewed and compared with the radiological findings and follow-up radiographs. Results: In the normal control group, the average anterior tilt angle measured −3.2°, SD ± 2.8°. The children with trampoline fractures showed an anterior tilt of +4.4°, SD ± 2.9°. The difference was statistically significant, P < 0.0001. In 6 patients (24% of all patients with confirmed fractures) the original report missed to diagnose the proximal tibial fracture. Conclusion: Young children between 2 and 5 years of age are at risk for proximal tibia fractures while jumping on a trampoline. These fractures may be very subtle and difficult to detect on initial radiographs. Measurement of the anterior tilt angle of the proximal tibia epiphyseal plate on lateral radiographs is supportive for interpreting correctly trampoline fractures

  15. Fractures of the distal tibia treated with polyaxial locking plating.

    Science.gov (United States)

    Gao, Hong; Zhang, Chang-Qing; Luo, Cong-Feng; Zhou, Zu-Bin; Zeng, Bing-Fang

    2009-03-01

    We evaluated the healing rate, complications, and functional outcomes in 32 adult patients with very short metaphyseal fragments in fractures of the distal tibia treated with a polyaxial locking system. The average distance from the distal extent of the fracture to the tibial plafond was 11 mm. All fractures healed and the average time to union was 14 weeks. Six patients (19%) reported occasional local disturbance over the medial malleolus. There were two cases of postoperative superficial infections and evidence of delayed wound healing. Using the American Orthopaedic Foot and Ankle Society ankle score, the average functional score was 87.3 points (of 100 total possible points). Our results show the polyaxial locking plates, which offer more fixation versatility, may be a reasonable treatment option for distal tibia fractures with very short metaphyseal segments.

  16. Racismo e preconceito contra os Avá-Guarani em Guaíra e Terra Roxa no Paraná.

    Directory of Open Access Journals (Sweden)

    Rosangela Daiana dos Santos

    2017-12-01

    Full Text Available Os casos de preconceito e racismo contra as comunidades indígenas em Guaíra e Terra Roxa no Paraná é preocupante e vem se agravando com o passar dos anos, a partir das análises feitas neste artigo trataremos das abordagens sobre o racismo, o preconceito e os casos onde os indígenas são reprimidos e excluídos da sociedade onde estão inseridos, como consequências de campanhas anti-indígenas lançadas por políticos. No decorrer deste artigo trataremos de discussões de uma reunião que ocorreu em uma comunidade indígena em Guaíra - PR em junho de 2016; contextualizaremos os processos históricos que levaram a matança dos povos indígenas, relacionando-a com acontecimentos dos últimos anos e as violações dos direitos indígenas. Na atualidade faz-se necessário a conscientização da população, dessa forma discutiremos soluções que podem ser tomadas para tentar mudar o rumo desses acontecimentos.

  17. Tibia Shaft Fractures in Adolescents: How and When Can They be Managed Successfully With Cast Treatment?

    Science.gov (United States)

    Ho, Christine A

    2016-06-01

    Despite the increasing popularity of operative treatment in adolescent tibia fractures, casting remains a viable first-line treatment. Because the selection bias in published reports does not allow direct comparison between casting and flexible nail treatment of closed pediatric tibia fractures, it is unclear whether flexible nailing offers any advantages over casting. This overview discusses parameters of acceptable alignment, indications, techniques for successful reduction and casting, subsequent inpatient and outpatient management including wedging of casted tibia fractures, expected outcomes, and comparison of casting with flexible nailing. As with any orthopaedic procedure, careful attention to patient selection, indications, and detail facilitates successful cast treatment in this older pediatric population.

  18. Low-power laser irradiation improves histomorphometrical parameters and bone matrix organization during tibia wound healing in rats.

    Science.gov (United States)

    Garavello-Freitas, I; Baranauskas, V; Joazeiro, P P; Padovani, C R; Dal Pai-Silva, M; da Cruz-Höfling, Maria Alice

    2003-01-01

    The influence of daily energy doses of 0.03, 0.3 and 0.9 J of He-Ne laser irradiation on the repair of surgically produced tibia damage was investigated in Wistar rats. Laser treatment was initiated 24 h after the trauma and continued daily for 7 or 14 days in two groups of nine rats (n=3 per laser dose and period). Two control groups (n=9 each) with injured tibiae were used. The course of healing was monitored using morphometrical analysis of the trabecular area. The organization of collagen fibers in the bone matrix and the histology of the tissue were evaluated using Picrosirius-polarization method and Masson's trichrome. After 7 days, there was a significant increase in the area of neoformed trabeculae in tibiae irradiated with 0.3 and 0.9 J compared to the controls. At a daily dose of 0.9 J (15 min of irradiation per day) the 7-day group showed a significant increase in trabecular bone growth compared to the 14-day group. However, the laser irradiation at the daily dose of 0.3 J produced no significant decrease in the trabecular area of the 14-day group compared to the 7-day group, but there was significant increase in the trabecular area of the 15-day controls compared to the 8-day controls. Irradiation increased the number of hypertrophic osteoclasts compared to non-irradiated injured tibiae (controls) on days 8 and 15. The Picrosirius-polarization method revealed bands of parallel collagen fibers (parallel-fibered bone) at the repair site of 14-day-irradiated tibiae, regardless of the dose. This organization improved when compared to 7-day-irradiated tibiae and control tibiae. These results show that low-level laser therapy stimulated the growth of the trabecular area and the concomitant invasion of osteoclasts during the first week, and hastened the organization of matrix collagen (parallel alignment of the fibers) in a second phase not seen in control, non-irradiated tibiae at the same period. The active osteoclasts that invaded the regenerating site were

  19. Tibia mineralization of chickens determined to meat production using a microbial phytase

    Directory of Open Access Journals (Sweden)

    Mária Angelovičová

    2018-02-01

    Full Text Available The target of the research was 6-phytase of microbial origin. It was used in feed mixtures for chickens determined to meat production. Its effect has been studied in relation to the tibia mineralization by calcium, phosphorus and magnesium. 6-phytase is a product of Aspergillus oryzae. That was obtained by means of biotechnological processes of production of commercially available enzymes. It was incorporated in the feed mixtures 0.1%. In a 38-day feeding trial, 300 one-day-old, as hatched, Cobb 500 chickens determined to meat production (100 birds per group were fed on one concentrations of dietary non-phytate phosphorus (2.32, 2.31 g.kg-1, respectively and supplemental microbial phytase (0 and 500   FTU.kg-1 feed mixtures. Control group was used to compare the results and control feed mixtures contained 4.5 g.kg-1 without microbial phytase. At days 40 it was selected 6 birds in every group, which were slaughter in accordance with the principles of welfare. Left tibias of every bird were used to determination of calcium, phosphorus and magnesium contents. According to in vivo, it was found that the addition of microbial phytase to reduced dietary non-phytate phosphorus increased concentrations of calcium (Ca, phosphorus (P and magnesium (Mg in tibia. The differences among groups were statistically significant (p <0.05. It was concluded that reducing of dietary non-phytate phosphorus on the 2.32, 2.31 g.kg-1, respectively, by monocalcium phosphate and microbial phytase supplementation in feed mixtures facilitated tibia mineralization at chicken determined to meat production. Normal 0 21 false false false EN-GB X-NONE X-NONE

  20. Solitary bone metastasis to the tibia from colorectal cancer- A case report

    Directory of Open Access Journals (Sweden)

    Abdulsalam Alnajjar

    2014-12-01

    Full Text Available The onset of osseous metastases during the course of colorectal cancer is not common. Although rare, they usually appear in the axial skeleton. In our report, we refer to the case of a 48-year-old patient who presented with colon cancer and eventually developed a solitary bone metastasis in the upper end of left tibia. At the time of diagnosis and staging investigations, the patient had only a primary disease.------------------------------------------------Cite this article as:Alnajjar A, Mohanty AK. Solitary bone metastasis to the tibia from colorectal cancer- A case report. Int J Cancer Ther Oncol 2014; 2(4:02045. DOI: 10.14319/ijcto.0204.5

  1. Injerto vascularizado de peroné en pseudoartrosis de tibia residual a osteomielitis

    OpenAIRE

    Fernández, Amilcar; Vargas, María de Lourdes; Pontillo, Pascual

    2014-01-01

    Las fracturas de la tibia son las más frecuentes dentro de los huesos largos y corresponden con el 24% de las fracturas abiertas, siendo los accidentes de tránsito responsables de 50%. Los defectos óseos son el resultado de lesiones en los miembros por trauma agudo severo con pérdida ósea. El uso del injerto vascularizado de peroné para defectos óseos severos en tibia y fémur tiene una tasa de éxito de 61% a 91%. Caso Clínico: Se trata de paciente masculino de 21 años de edad con antecedentes...

  2. Stress fracture in posterior aspect of the tibia

    International Nuclear Information System (INIS)

    Moon, Tae Yong; Jung, Hyun Woo; Park, Chung Hun; Chun, Kyung Ah; Koo, Bong Sig; Lee, Sang Yong

    1999-01-01

    To determine correlation between stress fracture of the posterior tibia and flexor digitorum longus muscle injury caused by athletic or sporting activity during adolescence. Eleven cases diagnosed as stress fracture after X-ray and MR imaging of the lower leg were reviewed. With regard to each fracture, the following features were noted : age, sex, and athletic or sporting activity of the patient, and site. Using MR imaging techniques, axial and sagittal T1 and T2 weighted imaged were obtained in all cases and T1-Gd DTPA images in seven. The activities undertaken were running (n=3), football (n=2), ballet (n=2), taekwando (n=1), badminton (n=1), field hockey (n=1), and basketball (n=1). MR images revealed localized cortical thickness (n=11), linear intramedullary callus showing a low signal on T1 and T2 weighted images (n=9), marrow hyperemia (n=7), and flexor digitorum longus muscle injury showing a high signal on T1-Gd DTPA and T2 weighted image (n=7). Stress fracture of the posterior tibia might be induced by flexor digitorum longus muscle activity induced by athletic or sporting activities during adolescence

  3. Stress fracture in posterior aspect of the tibia

    Energy Technology Data Exchange (ETDEWEB)

    Moon, Tae Yong; Jung, Hyun Woo; Park, Chung Hun [Pusan National Univ. College of Medicine, Pusan (Korea, Republic of); Chun, Kyung Ah [Catholic Univ Hospital, Pusan (Korea, Republic of); Koo, Bong Sig [Donga Univ. Hospital, Pusan (Korea, Republic of); Lee, Sang Yong [Chunbuk Natinoal Univ. Hospital, Chunju (Korea, Republic of)

    1999-01-01

    To determine correlation between stress fracture of the posterior tibia and flexor digitorum longus muscle injury caused by athletic or sporting activity during adolescence. Eleven cases diagnosed as stress fracture after X-ray and MR imaging of the lower leg were reviewed. With regard to each fracture, the following features were noted : age, sex, and athletic or sporting activity of the patient, and site. Using MR imaging techniques, axial and sagittal T1 and T2 weighted imaged were obtained in all cases and T1-Gd DTPA images in seven. The activities undertaken were running (n=3), football (n=2), ballet (n=2), taekwando (n=1), badminton (n=1), field hockey (n=1), and basketball (n=1). MR images revealed localized cortical thickness (n=11), linear intramedullary callus showing a low signal on T1 and T2 weighted images (n=9), marrow hyperemia (n=7), and flexor digitorum longus muscle injury showing a high signal on T1-Gd DTPA and T2 weighted image (n=7). Stress fracture of the posterior tibia might be induced by flexor digitorum longus muscle activity induced by athletic or sporting activities during adolescence.

  4. Surto de malária por Haemoproteus columbae em pombos An outbreak of malaria by Haemoproteus columbae in pigeons

    Directory of Open Access Journals (Sweden)

    J.S. Resende

    2001-06-01

    Full Text Available Relata-se um surto de malária por Haemoproteus columbae em pombos-correio (Columba livia, caracterizado por um quadro agudo com mortalidade de 3% ao dia em aves de aspecto saudável ou crônico com prostração e fraqueza. O exame clínico das aves doentes evidenciou sinusite e conjuntivite e à necropsia traqueíte hemorrágica, aerossaculite, esplenomegalia, nefromegalia e hepatomegalia com hemorragias. O díptero hematófago da família Hippoboscidae Pseudolynchia canariensis foi encontrado inserido entre as penas dos indivíduos. Esfregaços de sangue periférico e cardíaco e impressões de baço e fígado corados por Giemsa permitiram a visualização de inclusões intraeritrocitárias características de Haemoproteus columbae

  5. Examining tissue composition, whole-bone morphology and mechanical behavior of GorabPrx1 mice tibiae: A mouse model of premature aging.

    Science.gov (United States)

    Yang, Haisheng; Albiol, Laia; Chan, Wing-Lee; Wulsten, Dag; Seliger, Anne; Thelen, Michael; Thiele, Tobias; Spevak, Lyudmila; Boskey, Adele; Kornak, Uwe; Checa, Sara; Willie, Bettina M

    2017-12-08

    Gerodermia osteodysplastica (GO) is a segmental progeroid disorder caused by loss-of-function mutations in the GORAB gene, associated with early onset osteoporosis and bone fragility. A conditional mouse model of GO (Gorab Prx1 ) was generated in which the Gorab gene was deleted in long bones. We examined the biomechanical/functional relevance of the Gorab Prx1 mutants as a premature aging model by characterizing bone composition, tissue-level strains, and whole-bone morphology and mechanical properties of the tibia. MicroCT imaging showed that Gorab Prx1 tibiae had an increased anterior convex curvature and decreased cortical cross-sectional area, cortical thickness and moments of inertia, compared to littermate control (LC) tibiae. Fourier transform infrared (FTIR) imaging indicated a 34% decrease in mineral/matrix ratio and a 27% increase in acid phosphate content in the posterior metaphyseal cortex of the Gorab Prx1 tibiae (p finite element analysis showed ∼two times higher tissue-level strains within the Gorab Prx1 tibiae relative to LC tibiae when subjected to axial compressive loads of the same magnitude. Three-point bending tests suggested that Gorab Prx1 tibiae were weaker and more brittle, as indicated by decreasing whole-bone strength (46%), stiffness (55%), work-to-fracture (61%) and post-yield displacement (47%). Many of these morphological and biomechanical characteristics of the Gorab Prx1 tibia recapitulated changes in other animal models of skeletal aging. Future studies are necessary to confirm how our observations might guide the way to a better understanding and treatment of GO. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Management of infected non-union tibia by intercalary bone transport

    International Nuclear Information System (INIS)

    Pirwani, M.A.; Siddiqui, A.; Soomro, Y.H.

    2008-01-01

    To evaluate the efficacy of ilizarov ring fixator in treating infected non-union tibia by intercalary bone transport. Sixteen patients, all males, aged 20-60 years (mean 32 years), with infected non-union tibia (Lax/Cierney Type IV Osteomyelitis); the commonest cause being open fracture and the commonest site being lower 1/3rd. In infected non-union of tibia with draining sinus, wound swab was sent for culture and sensitivity, and sinogram done. Debridement and sequestrectomy was done, leaving behind a gap ranging from 2-8 cms (mean 4.5 cms) and ilizarov ring fixator, a transport assembly, applied. A navigation wire was passed through medial malleolus, irrigation system set up and the wound closed in a single layer. Proximal metaphyseal corticotomy was done. Irrigation with 2-3 litres of normal saline with appropriate antibiotic was continued for five days. On the 5th day irrigation system was removed and the transport started. Patients remained on partial weight bearing till soft tissue healing occured. Transport took place over the navigation wire at the rate of 1mm/day till docking achieved. Full weight bearing was allowed after soft tissue healing; knee and ankle physiotherapy was started from day one. Navigation wire was removed after 2-3 weeks of docking. Follow up ranged from 12-27 months (mean 16 months). Union was achieved at the docking site in all the cases at the time of frame removal i.e. 8-13 months. The duration of union at docking site ranged from 3.5 months to 6 months (mean 4.5 months). Two patients needed bone graft at the docking site. The regenerate was broken in one case due to fall which was treated in cast. All the patients were satisfied except a 60 years old who had severe osteoarthritis of knee. Pin tract infection occurred on and off in all the patients; appropriate antibiotic was given. The infection subsided in all the cases except two in whom debridement was followed by application of a local flap. Intercalary bone transport by

  7. Effects of fibrin sealer and resorbable gelatin on the repair of osseous defects in rat tibia Efeitos de selante de fibrina e de gelatina absorvível no reparo de defeitos ósseos em tíbia de rato

    Directory of Open Access Journals (Sweden)

    Eleny Balducci Roslindo

    2007-09-01

    Full Text Available Gelfoam® - a biologically resorbable gelatin sponge - has the function of restricting hemorrhage, providing platelet rupture, and supporting fibrin threads. Beriplast® - a fibrinogen-thrombin compound - is used to adhere tissues, to consolidate sutures and in hemostasis. The objective of this study was to perform a histological analysis of the effects of haemostatic agents on osseous repair. These materials were inserted into surgical sites in young rat right and left tibiae. After the observation periods of 7, 14, 30 and 45 days, according to the bioethic protocol, the animals were killed, the tibiae were removed and fixed in 10% formalin and decalcified in equal parts of formic acid and sodium citrate solutions. After routine processing, the specimens were embedded in paraffin for microtomy. Analysis of the results demonstrated that the haemostatic agents are effective in controlling hemorrhage; they stimulate osteogenesis, featuring a pattern of osseous tissue formation similar to the control pattern, although the amount of osseous trabeculae was superior, especially in the Gelfoam group in the periods of 7 and 14 days; 30 days after surgery, the delay in tissue healing in the control group in relation to the experimental groups started to decrease, and the control and experimental groups exhibited similar tissue repair after 45 days, when all the groups exhibited secondary osseous tissue.Gelfoam® - uma esponja de gelatina biologicamente reabsorvível - tem por função coibir as hemorragias, promover o rompimento de plaquetas e sustentar a rede de fibrina. Beriplast P® - um composto de fibrinogênio-trombina - é usado na adesão de tecidos, consolidação de suturas e hemostasia. O objetivo deste estudo foi verificar histologicamente os efeitos de agentes hemostáticos na reparação óssea, os quais foram colocados em lojas cirúrgicas nas tíbias direita e esquerda de ratos jovens. Após os períodos de observação de 7, 14, 30 e 45

  8. Alignment After Intramedullary Nailing of Distal Tibia Fractures Without Fibula Fixation.

    Science.gov (United States)

    De Giacomo, Anthony F; Tornetta, Paul

    2016-10-01

    To evaluate the efficacy of intramedullary nailing of distal tibia fractures using modern techniques, without fibula fixation, in obtaining and maintaining alignment. Retrospective case review. Level-I academic trauma center. One hundred thirty-two consecutive patients with distal tibia fractures. Intramedullary nail of distal tibia fracture, without fibula fixation, was performed in consecutive patients using modern reduction techniques. Malalignment and malunion were defined as >5 degrees of varus/valgus angulation or anterior/posterior angulation on the initial postoperative or final anteroposterior and lateral x-rays. There were 122 consecutive patients (86 men and 36 women) 16-93 years of age (average, 43 years) with 36 (30%) open and 85 (70%) closed fractures with complete follow-up. Mechanism of injury did not predict the presence or level of fibula fracture. Upon presentation, varus/valgus and procurvatum/recurvatum angulation was greatest when the fibula was fractured at the level of the tibia fracture (P = 0.001 and 0.028). The most common intraoperative reduction aids were nailing in relative extension, transfixion external fixation, and clamps at the fracture site. The OTA fracture type or level/presence of fibula fracture did not influence malalignment (P = 0.86 and 0.66), malunion (P = 0.81 and 0.79), or the change in alignment during union, which averaged 0.9 degrees. We found an overall low rate of both malalignment (2%) and malunion (3%) after intramedullary nailing of distal tibial shaft fracture without fibula fixation. We conclude that when modern nailing techniques are used, which allow for confirmation of reduction by visualization in fluoroscopy, from nail placement to distal interlocking, fibula fixation is not necessary to obtain or maintain alignment. Furthermore, standard 2 medial to lateral screws distally afford adequate stability to hold the reduction during union with a 0.9-degree difference in the initial postoperative and final

  9. Femoral bifurcation with ipsilateral tibia hemimelia: Early outcome of ...

    African Journals Online (AJOL)

    Hereby, we present a case report of a 2-year-old boy who first presented in our orthopedic clinic as a 12-day-old neonate, with a grossly deformed right lower limb from a combination of complete tibia hemimelia and ipsilateral femoral bifurcation. Excision of femoral exostosis, knee disarticulation and prosthetic fitting gives ...

  10. The Use of the Peripherally Inserted Central Catheter (Picc in the Hospital Environment La utilización del catéter central de inserción periférica (CCIP en el ambiente hospitalario A utilização do cateter central de inserção periférica (CCIP no ambiente hospitalar

    Directory of Open Access Journals (Sweden)

    Graziella Gasparotto Baiocco

    2010-12-01

    Full Text Available The study aimed to analyze the history of the use of the peripherally inserted central catheters in adult patients admitted to hospital from 2000 to 2007. The historical cohort approach was used with retrospective data collection from medical records of the Catheter Group of the Moinhos de Vento Hospital Association in Porto Alegre, RS, totaling 229 catheters inserted. The growth curve in the use of the PICC was from 1 catheter inserted in 2000 to 57 in 2007. The most prevalent pathology was oncology (17.9%, n=41. In relation to the indications of use, antibiotic use prevailed (54.1%, n=124. In the radiological confirmation the vena cava was prevalent (68.1%, n=156. The use of the PICC in the hospital environment is expanding and nursing has a fundamental role in its insertion, maintenance and removal.El estudio objetivó analizar el histórico de la utilización del catéter central de inserción periférica en pacientes adultos e internados en ambiente hospitalario de 2000 a 2007. Tuvo abordaje de cohorte histórico con recolección de datos retrospectivo en fichas del Grupo de Catéteres de la Asociación Hospitalaria Molinos de Viento en Porto Alegre, RS, totalizando 229 catéteres inseridos. La curva de crecimiento en la utilización del CCIP fue de 1 catéter inserido en 2000 a 57 inseridos en 2007. La prevalencia inherente a la patología fue oncológica (17,9%, n=41. En relación a las indicaciones de uso prevaleció la terapia con antibióticos (54,1%, n=124. En la confirmación radiológica la vena cava fue prevalente (68,1%, n=156. La utilización del CCIP en el ambiente hospitalario está en expansión y la enfermería tiene un papel fundamental en la inserción, manutención y remoción.O estudo objetivou analisar o histórico da utilização do cateter central de inserção periférica em pacientes adultos e internados, em ambiente hospitalar, de 2000 a 2007. Teve abordagem de coorte histórica, com coleta de dados retrospectiva em

  11. Stress fractures of the humerus, radius, and tibia in horses: clinical features and radiographic and/or scintigraphic appearance

    International Nuclear Information System (INIS)

    Mackey, V.S.; Trout, D.R.; Meagher, D.M.; Hornof, W.J.

    1987-01-01

    The medical records, radiographic and nuclear scintigraphic findings of 26 racing horses with 27 stress fracture episodes of the humerus, radius, or tibia were reviewed. The purposes of this study were to describe the radiographic and/or scintigraphic features of stress fractures of the humerus, radius, or tibia, and to evaluate the signalment and history of horses in which stress fracture occurred. Stress fractures of the three long bones examined were primarily seen in 2- and 3-year-old male Thoroughbred horses; commonly, the onset of lameness was immediately following training gallops or racing. There were 13 humeral stress fracture episodes in 12 horses. Ten were in the proximal caudolateral cortex, and three were in the distal craniomedial cortex. Radical stress fractures were seen in three horses, all in the midshaft radius. Tibial stress fractures were diagnosed in 11 horses. They were located in the proximal lateral tibia in six horses, the distal caudolateral tibia in three horses, and the midshaft tibia in three horses. Fifteen stress fractures were diagnosed with radiography alone, one was diagnosed with scintigraphy alone, nine were diagnosed with radiographs and scintigraphy, and, in two horses, radiographs were negative, but the scintigraphic findings were consistent with stress fracture

  12. [Tibia reconstruction using cross-leg pedicled fibular flaps: report of two cases].

    Science.gov (United States)

    Molski, M

    2000-01-01

    The paper presents the results of treatment of two children with cross-leg pedicle fibular flaps. A boy (10 years old) was operated because of an extensive defect of the proximal tibial shaft (15 cm) and soft tissue deficit due to osteosarcoma. He had been previously operated several times: tumor resection with chemiotherapy, bone reconstruction using allografts and two other procedures because of inflammatory complications. The second case was a 9-year old girl who underwent an extensive excision of congenital pseudoarthrosis of the tibia due to neurofibroma and reconstruction of the further fragment of the tibia. Vascularized fibula was nailed deep into the tibial shaft, beyond the previously implanted metal elements. This allowed to maintain a correct axis of the limb, a firm stabilization of the transplant and probably evoked a quick periosteal reaction of the tibia. Plaster of Paris was used to immobilize the limb. Postoperative course showed no complications. The flap pedicle was cut off after 3-4 weeks. Progressive bone healing followed by bony hypertrophy was observed after 8 weeks. The children were able to fully load the operated extremities and ambulate without crutches (the boys 12 months post-surgery and the girl 6 months post-surgery).

  13. Hybrid external fixation of the proximal tibia: strategies to improve frame stability.

    Science.gov (United States)

    Roberts, Craig S; Dodds, James C; Perry, Kelvin; Beck, Dennis; Seligson, David; Voor, Michael J

    2003-07-01

    To determine the specific frame construction strategies that can increase the stability of hybrid (ring with tensioned wires proximally connected by bars to half-pins distally) external fixation of proximal tibia fractures. DESIGN Repeated measures biomechanical testing. Laboratory. Composite fiberglass tibias. Using the Heidelberg and Ilizarov systems, external fixators were tested on composite fiberglass tibias with a 1-cm proximal osteotomy (OTA fracture classification 41-A3.3) in seven frame configurations: unilateral frames with 5-mm diameter half-pins and 6-mm diameter half-pins; hybrid (as described above), with and without a 6-mm anterior proximal half-pin; a "box" hybrid (additional ring group distal to the fracture connected by symmetrically spaced bars to the proximal rings) with and without an anterior, proximal half-pin; and a full, four-ring configuration. Each configuration was loaded in four positions (central, medial, posterior, and posteromedial). Displacement at point of loading of proximal fragment. The "box" hybrid was stiffer than the standard hybrid for all loading positions. The addition of an anterior half-pin stiffened the standard hybrid and the "box" hybrid. The most dramatic improvements in the stability of hybrid frames used for proximal tibial fractures result from addition of an anterior, proximal half-pin.

  14. Uncemented three-dimensional-printed prosthetic reconstruction for massive bone defects of the proximal tibia.

    Science.gov (United States)

    Lu, Minxun; Li, Yongjiang; Luo, Yi; Zhang, Wenli; Zhou, Yong; Tu, Chongqi

    2018-03-06

    Currently, it is challenging to treat massive bone defects of proximal tibia. Although numerous methods are available for reconstruction with epiphysis preservation, limitations in knee function and complications are noted with these methods. Our paper describes our attempt to reconstruct a marked defect in the proximal tibia with an uncemented three-dimensional (3D)-printed prosthesis and to evaluate the prosthesis design and short-term outcomes. A 15-year-old boy with metaphyseal osteosarcoma of the tibia underwent intercalary allograft reconstruction following wide tumour resection with epiphysis preservation. However, chronic allograft rejection and/or infection occurred after the surgery and a sinus tract was formed. The rejection and/or infection process was successfully stopped by the removal of the graft and implantation of an antibiotic-loaded cement spacer; however, the limb function was poor. Because of the irregular shape of the defect and the excessively short length of the residual proximal tibia, we used the 3D printing technology to design and fabricate a personalised prosthesis to reconstruct the defect, with the preservation of the knee joint. At the last follow-up at 26 months, the patient had satisfactory limb function. The 3D-printed prosthesis may be a feasible option in the reconstruction of tibial metaphyseal defects with the preservation of the knee joint. Moreover, it can result in good postoperative function and low complication rates. However, a long-term follow-up is required to clarify its long-term outcomes.

  15. Efeito do ácido zoledrônico em tíbias de ratas ooforectomizadas: estudo prospectivo e randomizado Effects of zoledronic acid on ooforectomized rats' tibiae: a prospective and randomized study

    Directory of Open Access Journals (Sweden)

    Fernando Roberto Alves Pereira

    2009-02-01

    Full Text Available OBJETIVO: Investigar as repercussões clínicas, biomecânicas e histomorfométricas do ácido zoledrônico em tíbias de ratas osteoporóticas, após ooforectomia bilateral. MÉTODOS: Foram estudadas, prospectivamente, 40 ratas da linhagem Wistar (Rattus novergicus albinus. Com 60 dias de vida, os animais foram aleatorizados em dois grupos de acordo com o procedimento cirúrgico: ooforectomia bilateral (O (n=20 e pseudo-cirurgia ("sham" (P (n=20. Após 30 dias, os animais foram divididos em quatro subgrupos, de acordo com a administração de 0,1mg/kg de ácido zoledrônico (AZ ou água destilada (AD: OAZ (n=10, OAD (n=10, PAZ (n=10 e PAD (n=10. Após 12 meses, os animais foram eutanasiados e suas tíbias analisadas. No estudo clínico foi considerado o peso dos animais; no estudo biomecânico foram realizados ensaios compressivos e na análise histomorfométrica foi determinada a área trabecular óssea. RESULTADOS: Os grupos "O" tiveram aumento de peso significativamente maior que os grupos "P" (p=0,005. Os grupos OAZ e PAZ tiveram aumento, não significativo, de peso quando comparados aos grupos OAD (p=0,47 e PAD (p=0,68. Os grupos com ácido zoledrônico e com água destilada suportaram carga máxima, semelhante (p=0,2, no momento em que ocorreu fratura. Nos grupos com ácido zoledrônico verificou-se o aumento não significante da área trabecular óssea quando comparados aos grupos com água destilada (p=0,21. Houve correlação positiva entre a área trabecular e a carga máxima (p=0,04; r=0,95. CONCLUSÃO: O ácido zoledrônico não influiu significativamente no peso dos animais. Os resultados mostraram aumento, não significante, tanto da resistência óssea diafisária tibial, como da área trabecular óssea.OBJECTIVE: To investigate clinical, biomechanic and histomorphometric effects of zoledronic acid on osteoporotic rats'tibiae after bilateral ooforectomy. METHODS: 40 female Wistar (Rattus novergicus albinus rats were prospectively

  16. Estudio de la capacidad estabilizadora del peroné en fracturas de tibia de conejo

    OpenAIRE

    Fornells Miquel, P.; GÓMEZ BENITO, M.J.; García Aznar, J. M.; BEA CASCAROSA, J.A.

    2008-01-01

    El objetivo de este trabajo es estudiar la capacidad estabilizadora del peroné en fracturas de tibia. Si dicha capacidad es suficiente, sería posible evitar el uso de sistemas de fijación en los experimentos de laboratorio con este tipo de fracturas. Para comprobarlo se ha realizado una simulación computacional por elementos finitos de la tibia y el peroné de un conejo, con una fractura en el tercio medio superior de la diáfisis sin ningún elemento estabilizador. El conjunto ha sido sometido ...

  17. Pearls and tips in coverage of the tibia after a high energy trauma

    Directory of Open Access Journals (Sweden)

    Rios-Luna Antonio

    2008-01-01

    Full Text Available Coverage of soft-tissue defects in the lower limbs, especially open tibial fractures, is currently a frequently done procedure because of the high incidence of high-energy trauma, which affects this location. The skilled orthopedic surgeon should be able to carry out an integral treatment of these lesions, which include not only the open reduction and internal fixation of the fracture fragments but also the management of complications such as local wound problems that may arise. There is a wide variety of muscular or pedicled flaps available for reconstruction of lower limb soft-tissue defects. These techniques are not commonly used by orthopedic surgeons because of the lack of familiarity with them and the potential for flap failure and problems derived from morbidity of the donor site. We present a coverage management update for orthopedic surgeons for complications after an open tibial fracture. We choose and describe the most adequate flap depending on the region injured and the reliable surgical procedure. For proximal third of the tibia, we use gastrocnemius muscle flap. Middle third of the tibia could be covered by soleus muscle flap. Distal third of the tibia could be reconstructed by sural flaps, lateral supramalleolar skin flap, and posterior tibial perforator flap. Free flaps can be used in all regions. We describe the advantages and disadvantages, pearls, and tips of every flap. The coverage of the tibia after a major injury constitutes a reliable and versatile technique that should form part of the therapeutic arsenal of all the orthopedic surgeons, facilitating the integral treatment of complex lower limb injuries with exposed defects.

  18. Relatos de experiências pessoais e socioconstrução de conhecimentos em sala de aula de língua estrangeira

    Directory of Open Access Journals (Sweden)

    Adriana Nogueira Accioly NÓBREGA

    Full Text Available RESUMO Este artigo tem por objetivo analisar relatos de experiência produzidos espontaneamente por crianças e jovens adolescentes em sala de aula de língua inglesa. Inserido na área de Linguística Aplicada, o estudo está fundamentado na perspectiva teórica sociocultural (VYGOTSKY, 1998, 2001, segundo a qual a linguagem é uma ferramenta mediadora na socioconstrução de conhecimentos, em interface com uma visão de linguagem orientada para o uso e a serviço de propósitos sociocomunicativos, como proposto pela Linguística Sistêmico-Funcional (HALLIDAY; HASAN, 1989. Nessa arquitetura teórica e com base em uma tradição qualitativa de pesquisa (DENZIN; LINCOLN, 2006, discutimos como os relatos analisados atuam na socioconstrução do conhecimento pedagógico a partir da experiência pessoal, tornando os saberes significativos e compartilhados em sala de aula. Além disso, sugerimos que a experiência de mundo colabora para a construção do conhecimento curricular e esse, em retorno, serve como suporte para a construção da experiência particular do estudante, conforme proposto por Nóbrega (2003, 2009.

  19. Violência, culpa e ato: causas e efeitos subjetivos em adolescentes

    Directory of Open Access Journals (Sweden)

    Henrique Figueiredo Carneiro

    2010-12-01

    Full Text Available Este trabalho apresenta um relato de pesquisa realizada sobre a violência e o adolescente, evidenciando o objetivo, as causas e os efeitos subjetivos que desencadeiam a violência na atualidade. Apresenta também uma investigação qualitativa com referencial teórico-conceitual da psicanálise, em destaque os conceitos de mal-estar, lei, anomia, limites, laços sociais, necessidade, desejo, culpa, passagem ao ato, individualismo, discurso capitalista, amor, vida e morte. Foram utilizados fotografias e fragmentos de filmes apresentados aos adolescentes inseridos no projeto Pró-jovem, desenvolvido na cidade de Maracanaú, Ceará, Brasil. As análises confirmaram os pressupostos da pesquisa de que a violência guarda relação direta com a ineficácia dos discursos normativos, que a culpa não comparece em consequência dos atos desfechados contra o próximo e que o sujeito não se guia por uma referência mítica do representante da lei.(* Colaboradores da pesquisa: doutora Marta Gerez Ambertín (Universidad de Santiago del Estero - Argentina; mestra em Psicologia Márcia Batista dos Santos (Universidade de Fortaleza - Brasil; alunos de Mestrado em Psicologia: Thiago Costa Matos Carneiro da Cunha (Labio, Rossana Vaz Borja (Labio, Carla Renata Braga de Souza (Labio/Leipcs, Lisieux D’Jesus Luzia de Araújo Rocha (Labio/Otium - Universidade de Fortaleza - Brasil; graduado em Psicologia Marcus Vinicius Ximenes Rocha (Universidade de Fortaleza – Brasil; bolsista de I. C. CNPq: Ricardo Pinheiro Maia Júnior; bolsista de I. C. Funcap: Rayana Silva Lima (Universidade de Fortaleza. Projeto apoiado pelo CNPq por meio de Bolsa de Produtividade em Pesquisa concedida ao Prof. Dr. Henrique Figueiredo Carneiro.

  20. The immediate effect of neuromuscular joint facilitation on the rotation of the tibia during walking.

    Science.gov (United States)

    Li, Desheng; Huang, Qiuchen; Huo, Ming; Hiiragi, Yukinobu; Maruyama, Hitoshi

    2017-01-01

    [Purpose] The aim of this study was to investigate the change in tibial rotation during walking among young adults after neuromuscular joint facilitation therapy. [Subjects and Methods] The subjects were twelve healthy young people (6 males, 6 females). A neuromuscular joint facilitation intervention and nonintervention were performed. The interventions were performed one after the other, separated by a 1-week interval. The order of the interventions was completely randomized. The rotation of the tibia during walking was evaluated before and after treatment. [Results] The neuromuscular joint facilitation group demonstrated increased lateral rotation of the tibia in the overall gait cycle and stance phase, and decreased medial rotation of the tibia in the overall gait cycle, stance phase, and swing phase after the neuromuscular joint facilitation intervention. In the control group, there were no significant differences. [Conclusion] These results suggest neuromuscular joint facilitation intervention has an immediate effect on the rotational function of the knee.

  1. The Contribution of SPECT/CT in the Diagnosis of Stress Fracture of the Proximal Tibia.

    Science.gov (United States)

    Okudan, Berna; Coşkun, Nazım; Arıcan, Pelin

    2018-02-01

    Stress fractures are injuries most commonly seen in the lower limbs and are usually caused by repetitive stress. While the distal and middle third of the tibia is the most frequent site for stress fractures (almost 50%), stress fractures of the proximal tibia is relatively rare and could be confused with other types of tibial fractures, thus altering management plans for the clinician. Early diagnosis of stress fractures is also important to avoid complications. Imaging plays an important role in the diagnosis of stress fractures, especially bone scan. Combined with single-photon emission computed tomography/computed tomography (SPECT/CT) it is an important imaging technique for stress fractures in both upper and lower extremities, and is widely preferred over other imaging techniques. In this case, we present the case of a 39-year-old male patient diagnosed with stress fracture of the proximal tibia and demonstrate the contribution of CT scan fused with SPECT imaging in the early diagnosis of stress fracture prior to other imaging modalities.

  2. Sensory evaluation and tibia bone retention of broiler chicken fed ...

    African Journals Online (AJOL)

    An experiment was conducted for 56 days to assess the sensory evaluation of breast meat sample and tibia bone mineralization of broiler chicken fed graded level of toasted sesame seed meal. One hundred and eighty arbor acre chicks were divided into five dietary treatments. Each treatment was replicated thrice with ...

  3. Stress Fractures of Tibia Treated with Ilizarov External Fixator.

    Science.gov (United States)

    Górski, Radosław; Żarek, Sławomir; Modzelewski, Piotr; Górski, Ryszard; Małdyk, Paweł

    2016-08-30

    Stress fractures are the result of cyclic loading of the bone, which gradually becomes damaged. Most often they are treated by rest or plaster cast and, in rare cases, by internal fixation. There is little published data on initial reposition followed by stabilization with the Ilizarov apparatus in such fractures. Six patients were treated with an external fixator according to the Ilizarov method for a stress fracture of the tibia between 2007 and 2015. Three patients were initially treated conservatively. Due to increasing tibial deformation, they were qualified for surgical treatment with external stabilization. In the other patients, surgery was the first-line treatment. All patients demonstrated risk factors for a stress fracture. After the surgery, they fully loaded the operated limb. No patient developed malunion, nonunion, infection or venous thrombosis. The average time from the first operation to the removal of the external fixator was 19 weeks. Radiographic and clinical outcomes were satisfactory in all patients. 1. The Ilizarov method allows for successful stabilization of stress fractures of the tibia. 2. It may be a good alternative to internal stabilization, especially in patients with multiple comorbidities which affect bone quality and may impair soft tissue healing.

  4. Association of tibia lead and blood lead with end-stage renal disease: A pilot study of African-Americans

    International Nuclear Information System (INIS)

    Muntner, Paul; Menke, Andy; Batuman, Vecihi; Rabito, Felicia A.; He Jiang; Todd, Andrew C.

    2007-01-01

    The association between body lead burden and kidney disease remains controversial. Fifty-five African-American end-stage renal disease (ESRD) cases and 53 age- and sex-matched African-American controls without known renal disease were recruited from Tulane University-affiliated dialysis clinics and out-patient clinics, respectively. Blood lead was measured via atomic absorption spectrophotometry and tibia lead (a measure of body lead) was measured via 109 Cd-based K shell X-ray fluorescence. Median blood lead levels were significantly higher among ESRD cases (6 μg/dL) compared to their control counterparts (3 μg/dL; P<0.001). Although no participants had overt lead poisoning (blood lead ≥25 μg/dL), seven cases but no controls had blood lead levels above 10 μg/dL (P=0.006). The median tibia lead level was 17 micrograms of lead per gram of bone mineral (μg/g) and 13 μg/g among ESRD cases and their control counterparts, respectively (P=0.134). Four ESRD cases (7%), but no controls, had a tibia lead level above 40 μg/g (P=0.115) while a similar proportion of cases and controls had tibia lead between 20 and 39 μg/g (33% and 32%, respectively; P=0.726). After adjustment for potential confounders, the odds ratios of ESRD associated with a tibia lead ≥20 μg/g and each four-fold higher tibia lead (e.g., 5-20 μg/g) were 1.55 (95% CI: 0.55, 4.41) and 1.88 (95% CI: 0.53, 6.68), respectively. These findings support the need for prospective cohort studies of body lead burden and renal disease progression

  5. Epidemiology of open tibia fractures in a population-based database: update on current risk factors and clinical implications.

    Science.gov (United States)

    Weber, Christian David; Hildebrand, Frank; Kobbe, Philipp; Lefering, Rolf; Sellei, Richard M; Pape, Hans-Christoph

    2018-02-02

    Open tibia fractures usually occur in high-energy mechanisms and are commonly associated with multiple traumas. The purposes of this study were to define the epidemiology of open tibia fractures in severely injured patients and to evaluate risk factors for major complications. A cohort from a nationwide population-based prospective database was analyzed (TraumaRegister DGU ® ). Inclusion criteria were: (1) open or closed tibia fracture, (2) Injury Severity Score (ISS) ≥ 16 points, (3) age ≥ 16 years, and (4) survival until primary admission. According to the soft tissue status, patients were divided either in the closed (CTF) or into the open fracture (OTF) group. The OTF group was subdivided according to the Gustilo/Anderson classification. Demographic data, injury mechanisms, injury severity, surgical fracture management, hospital and ICU length of stay and systemic complications (e.g., multiple organ failure (MOF), sepsis, mortality) were collected and analyzed by SPSS (Version 23, IBM Inc., NY, USA). Out of 148.498 registered patients between 1/2002 and 12/2013; a total of 4.940 met the inclusion criteria (mean age 46.2 ± 19.4 years, ISS 30.4 ± 12.6 points). The CTF group included 2000 patients (40.5%), whereas 2940 patients (59.5%) sustained open tibia fractures (I°: 49.3%, II°: 27.5%, III°: 23.2%). High-energy trauma was the leading mechanism in case of open fractures. Despite comparable ISS and NISS values in patients with closed and open tibia fractures, open fractures were significantly associated with higher volume resuscitation (p Open tibia fractures are common in multiple trauma patients and are therefore associated with increased resuscitation requirements, more surgical procedures and increased in-hospital length of stay. However, increased systemic complications are not observed if a soft tissue adapted surgical protocol is applied.

  6. Management of the proximal tibia fractures by mini external fixation: A case series of 30 cases

    Directory of Open Access Journals (Sweden)

    Samar K Biswas

    2014-01-01

    Full Text Available Background: Management of high velocity trauma is a challenging problem because of morbidity of trauma and sometime residual problems of failure of proper healing of fractures with the restriction of movements of knee, shortening, and added risk of compartment syndrome in the proximal tibia fracture. There is always risk of post-operative infection and infected non-union in extensive open surgical procedure and internal fixation. Hence, there is always look out for the middle path procedure for a solution to the above said problems with the added advantage of less hospital stay and early return to work by minimal invasive procedure and stabilization of fracture reduction by multiple K-wire fixation with a frame applied externally. Stabilization of fracture with reduced pain allows early movements of neighbouring joint knee and ankle; hence, reduces the chances of fracture diseases. With this we have been stimulated to take-up the study of managing the proximal tibia fracture by mini external fixator. Aim: The aim of this study was to manage proximal tibia fractures by mini external fixator and evaluate the results and efficacy of this method. Material and Method: A total of 30 patients having proximal tibial fractures admitted at our center between 2008 and 2010 were taken and the procedure carried out was closed manipulative reduction and stabilization with mini external fixator. All acute proximal tibia fractures including tibial plateau fractures above 17 years of age of either sex were included in the study. Fracture more than 3 weeks old were excluded from the study. Result: Out of 30 cases 13 were excellent, 14 cases good, and 3 showed fair. It was found that type 5 and 6 of Schatzker′s classification have lesser outcome type of fractures Conclusion: We have found that management of the proximal tibia fractures by mini external fixation method has a better outcome. Early mobilization of knee in the proximal tibia fractures after

  7. Efficacy and Safety of Interlocked Intramedullary Nailing for Open Fracture Shaft of Tibia

    International Nuclear Information System (INIS)

    Ahmad, N.; Awan, A. S.; Sultan, S.; Saifullah, K.; Afridi, S. A.; Afridi, S. K.; Lodhi, F. S.

    2016-01-01

    Background: Due to increasing population and changing human habits the number of accidents and high energy trauma is rising. Management of open fracture tibia is a complex problem and is a challenge for both orthopaedic and plastic surgeons. The study was carried out to ascertain the efficacy and safety of interlocked intra-medullary nailing for open shaft tibial fractures in patients presenting at or after 24 hr of injury. Methods: In this descriptive case series, over a period of 6 moths, 163 consecutive cases of open fracture of tibial shaft were reviewed in terms of clinical profile, time of presentation, and gender distribution. Results: In this study mean age was 30±0.02 years. Males comprised 85 percent of study population while 15 percent were females. Gustilo-I type fracture and Gustilo-II type fracture was diagnosed in 90 percent and 10 percent patients respectively. Thirty three percent patients had wound infection while fracture union was found in 15 percent cases. Moreover interlocked intramedullary nailing for open fracture shaft of tibia was safe in 80 percent patients while this procedure was effective in 85 percent. Conclusion: Un-reamed, interlocked intra-medullary nailing may be considered as a suitable option for treatment of open fractures of tibia. (author)

  8. operative treatment of primary bone tumours of the femur and the tibia

    African Journals Online (AJOL)

    can cause infection, pseudoarthrosis and pathological fracture. Objective: The purpose of ... after several re-surgeries. Key words: Bone tumour, Femur, Tibia, Resection, Allograft .... stress, the length of the graft, the realization of an arthrodesis ...

  9. 'Trampoline fracture' of the proximal tibia in children: report of 3 cases and review of literature.

    Science.gov (United States)

    Bruyeer, E; Geusens, E; Catry, F; Vanstraelen, L; Vanhoenacker, F

    2012-01-01

    We present three cases of fracture of the proximal tibia in young children who were jumping on a trampoline. The typical radiological findings and the underlying mechanism of trauma are discussed. The key radiological features are: a transverse hairline fracture of the upper tibia often accompanied by a buckle fracture of the lateral or medial tibial cortex, buckling of the anterior upper tibial cortex and anterior tilting of the epiphyseal plate. New types of injuries related to specific recreational activities are recognized. It is often helpful to associate a typical injury with a particular activity. Trampoline related injuries have increased dramatically over the last years. The most common lesions are fractures and ligamentous injuries, in particular a transverse fracture of the proximal tibia. However the radiological findings can be very subtle and easily overlooked. It is therefore important to be aware of the typical history and radiological findings.

  10. Impact of response criteria (tibia ash weight vs. percent) on phytase relative non phytate phosphorus equivalance.

    Science.gov (United States)

    Li, W; Angel, R; Kim, S-W; Jiménez-Moreno, E; Proszkowiec-Weglarz, M; Plumstead, P W

    2015-09-01

    The current study was conducted to evaluate the impacts of using tibia ash percentage or ash weight as the response criteria on estimated phytase relative equivalence. Straight run broilers were fed treatment (Trt) diets from 7 to 21 d age (6 birds/pen, 8 pens/Trt). The corn-soy based Trt were formulated to contain 0.80% Ca and 4 non-phytate phosphorus (nPP) concentrations (0.20, 0.27, 0.34, and 0.40%). Monocalcium phosphate was the inorganic phosphate source added to achieve 4 different dietary nPP concentrations and against which the nPP relative equivalence of phytase was determined. A 6-phytase (Danisco Animal Nutrition, DuPont Industrial Biosciences, Marlborough, UK) was added at 500 or 1,000 phytase unit ( FTU: )/kg to the 0.20% nPP diet resulting 6 total Trts. Tibia ash was determined at 21 d age. Phytase fed at 500 or 1,000 FTU/kg increased tibia ash weight and ash percentage compared to that of birds fed 0.20% nPP diet without phytase (Pphytase nPP relative equivalence. The R2 obtained from pen value regressions were 0.81 and 0.84, for tibia ash weight and percentage, respectively. Ash percentage from birds fed 500 and 1,000 FTU phytase/kg fell within the range obtained with the MCP additions. Ash weight (842 mg/tibia) from birds fed 1,000 FTU phytase/kg exceeded (Pphytase/kg Trt. The nPP relative equivalence in birds fed 500 FTU phytase/kg were 0.117 and 0.168% based on ash percentage and weight, respectively (Pphytase/kg was 0.166% for ash percentage. Results suggested that ash weight better reflects the amount of bone mineralization as compared to ash percentage and using ash percentage may lead to an underestimation of phytase efficacy. © 2015 Poultry Science Association Inc.

  11. Planejamento ambiental e ocupação do solo urbano em Presidente Prudente (SP

    Directory of Open Access Journals (Sweden)

    Sibila Corral de Arêa Leão Honda

    2014-01-01

    Full Text Available O planejamento urbano ambiental é processo de extrema importância para os centros urbanos atualmente, auxiliando na ocupação racional e no equilíbrio ambiental. Não deveria ser desvinculado das políticas de desenvolvimento, pois está diretamente relacionado à qualidade de vida. Auxiliando nesse processo, o plano diretor municipal, aprovado constitucionalmente em 1988, é instrumento fundamental para orientar a ação dos agentes em prol do desenvolvimento urbano equilibrado. Apoiado nessa premissa, este artigo tem como objetivo primeiro a contribuição dessa discussão, por meio da relação de uso e ocupação do solo urbano e a produção da habitação de interesse social em cidades médias, considerando as questões ambientais, tendo como estudo de caso a realidade da cidade de Presidente Prudente, município localizado no oeste do Estado de São Paulo, no período entre 1997 e 1999. A metodologia utilizada foi baseada em pesquisa qualitativa, com levantamentos de campo dos conjuntos habitacionais escolhidos, segundo aspectos arquitetônicos, urbanísticos e ambientais. Verifica-se uma realidade inadequada no município analisado, cujos projetos de habitação social são inseridos na malha urbana desconsiderando normas, leis e diretrizes, em um processo de políticas urbanas não coerentes com os propósitos socioambientais desejáveis.

  12. REFLEXOS DO PLANO DE NEGÓCIOS EM MICROEMPRESAS DE VENDA NOVA DO IMIGRANTE

    Directory of Open Access Journals (Sweden)

    Marcia Roberta Da Silva Louzada

    2017-01-01

    Full Text Available Empreender é uma arte de aplicar os conhecimentos adquiridos ao longo da vida em momentos propícios para atingir fins específicos. Mais que gestor, o empreendedor é um visionário que identifica oportunidades e traça caminhos para alcançar seus objetivos. Este trabalho buscou analisar o perfil do empreendedor vendanovense e sua visão sobre a importância da adoção do plano de negócios e ao mesmo tempo identificar os possíveis impactos sofridos por empresas que não o utilizaram. Como ferramenta metodológica para desenvolvimento da pesquisa, utilizou-se uma análise descritiva com aplicação da pesquisa de campo e como ferramenta de coleta de dados, adotou-se o questionário semiestruturado. Os resultados indicam que os empreendedores vendanovenses consideram o plano de negócio como uma ferramenta válida para o suporte na abertura e condução do empreendimento, sendo um instrumento auxiliador ao negócio em que estes atores estão inseridos.

  13. The Contribution of SPECT/CT in the Diagnosis of Stress Fracture of the Proximal Tibia

    Directory of Open Access Journals (Sweden)

    Berna Okudan

    2018-02-01

    Full Text Available Stress fractures are injuries most commonly seen in the lower limbs and are usually caused by repetitive stress. While the distal and middle third of the tibia is the most frequent site for stress fractures (almost 50%, stress fractures of the proximal tibia is relatively rare and could be confused with other types of tibial fractures, thus altering management plans for the clinician. Early diagnosis of stress fractures is also important to avoid complications. Imaging plays an important role in the diagnosis of stress fractures, especially bone scan. Combined with single-photon emission computed tomography/computed tomography (SPECT/CT it is an important imaging technique for stress fractures in both upper and lower extremities, and is widely preferred over other imaging techniques. In this case, we present the case of a 39-year-old male patient diagnosed with stress fracture of the proximal tibia and demonstrate the contribution of CT scan fused with SPECT imaging in the early diagnosis of stress fracture prior to other imaging modalities.

  14. Qualidade dos produtos de terapias avançadas: requisitos de células extensamente manipuladas usadas em terapias celulares e em bioengenharia

    Directory of Open Access Journals (Sweden)

    Rosana Bizon Carias

    2018-02-01

    Full Text Available Introdução: O preparo de produtos para terapias avançadas inclui, frequentemente, a manipulação extensa de células primárias in vitro, o que pode acarretar em alterações da população celular final. A padronização dos métodos de obtenção das culturas, seguindo as regras das Boas Práticas de Fabricação, com a realização dos controles de qualidade do processo e do produto final, é essencial para garantir a segurança do paciente e a comparabilidade dos resultados clínicos obtidos. Objetivo: Este estudo buscou identificar os ensaios, prevalentemente citados na literatura científica ou em normas sanitárias, aplicados na avaliação da qualidade de células primárias humanas, passíveis de serem inseridos na rotina dos Centros de Processamento Celular. Método: Foi realizado o levantamento de artigos científicos e de normas sanitárias que tratassem de terapia celular e dos ensaios de qualidade associados. Resultados: Foi evidenciado que as normas regulamentares direcionadas a produtos com base em células cultivadas in vitro não detalham os ensaios de qualidade, o que torna urgente a discussão dessa matéria. Conclusões: Evidenciamos a necessidade de preparo do produto na forma de um lote de células, que deve ser controlado para a qualidade, a partir de amostras representativas do todo e propomos a realização de uma bateria de ensaios, que definem a qualidade do produto de terapia avançada, a base de células cultivadas in vitro, com detalhamento dos pontos em que estes devem ser realizados, organizados como fluxogramas de processamento.

  15. Infection Rates in Open Fractures of the Tibia: Is the 6-Hour Rule Fact or Fiction?

    Directory of Open Access Journals (Sweden)

    Ameya S. Kamat

    2011-01-01

    Full Text Available Aims. Emergency debridement has long been the standard of care for open fractures of the tibia as infection is an important complication. The timing of operative debridement can be debated. We review open fractures of the tibia and compare infection rates in those that were operated on within and after 6-hours. Method. 103 consecutive open fractures of the tibia were reviewed. The data was analysed retrospectively with regard to severity of fracture and incidence of infection. Infection rates over a three-month period were compared between the two groups. Results. 12 (11.6% patients developed an infection within the first 3 months of injury. 7 of which were taken to theatre within 6-hours, and 5 after 6-hours. No significant differences were found between these two groups. Conclusion. There is no significant difference in timing of surgery. Initial basic interventions may play more of a role in limiting the risk of infection.

  16. The healing stages of an intramedullary implanted tibia: A stress strain comparative analysis of the calcification process

    Science.gov (United States)

    Filardi, Vincenzo

    2015-01-01

    Aims The extended usage of unreamed tibial nailing resulted in reports of an increased rate of complications, especially for the distal portion of the tibia. Unreamed nailing favours biology at the expense of the achievable mechanical stability, it is therefore of interest to define the limits of the clinical indications for this method. Extra-articular fractures of the distal tibial metaphysis, meta-diaphyseal junction, and adjacent diaphysis are distinct in their management from impaction derived ‘‘pilon’’ type fractures and mid-diaphyseal fractures. The goals of this work were to gain a thorough understanding of the load-sharing mechanism between unreamed nail and bones in a fractured tibia. With this purpose a complete model of the human leg was realised, simulating a mid-diaphyseal fracture, classified as A2 type 1, according to the AO classification. The analysis of the entire chain allows to have a complete picture of the stress distribution and of the most stressed bones and soft tissues, but, more importantly can overcome problems connected with boundary conditions imposed at single bony components. Methods Model consists of six bony structures: pelvis, femur, patella, fibula, tibia, and a simplified lump of the feet, configured in a standing up position. Their articular cartilage layers, were simulated by 3D membranes of opportune stiffness connecting the different segments. Moreover an unreamed intra-medullary nail Expert Tibial Nail (DePuy Synthes®) stabilized the fractured tibia. A load of 700 N has been applied at the top of pelvis and a part the feet, at the tip, was rigidly fixed. Five different contact interfaces have been imposed at the different bony surfaces in contact. Results Three different conditions were analysed: the initially healthy tibia, the A2 type 1 fractured tibia with the Expert tibial nail implanted, and the follow up stage after complete healing of tibia. Non-linear finite element analysis of the models were performed

  17. KNEE CARTILAGE AND SYNOVIAL MEMBRANE STRUCTURAL CHANGES DURING TIBIA DISTRACTION WITH PLATING

    Directory of Open Access Journals (Sweden)

    T. A. Stupina

    2017-01-01

    Full Text Available Purpose of the study — to analyze the changes in knee articular cartilage and synovial membrane during distraction external fixation of the tibia in combination with plating.Material and methods. Articular cartilage and synovial membrane of the knee joint were studied using histomorphometry methods in 9 mongrel dogs during distraction external fixation of the tibia combined with plating. Tibia and fibula osteotomies were performed at the border of middle and upper third, plate was fixed on tibia diaphysis. Lengthening was achieved at rate of 1 mm per day in four stages during 21–28 days. Animals were withdrawn from experiment in 30 and 90 days. After autopsy of knee joints the authors excised sections of synovial membrane from suprapatellar area, articular cartilage with underlying subchondral bone from loadable surface of femoral condyles. Thickness of articular cartilage, its area and volumetric density of chondrocytes was measured, proportion of chondrocytes within isogenic groups from the overall number of chondrocytes as well as proportion of empty lacunae. In synovial membrane the authors measured thickness of surface layer and numeric density of micro vessels. Articular cartilage of 5 intact animals was used as a control group.Results. After 30 days of plate fixation a hyperplasia of the integument layer, mild synovitis, and hypervascularization were observed in synovial membrane. Density of micro vessels increased to 363.93±33.71 (control group — 335.05±28.88. The authors also observed subperineural and endoneural edema as well as destruction of nerve fibers in subsynovial layer. Articular cartilage retained the zonal structure. Destructive changes were manifested by fibers separation in the superficial part of surface zone and by partial loss of chondrocytes. The following parameters were reduced: cartilage thickness, area and volumetric density of chondrocytes, proportion of isogenic groups; empty lacunae exceeded the values in

  18. Freezing of Rat Tibiae at -20°C Does Not Affect the Mechanical Properties of Intramedullary Bone/Implant-Interface: Brief Report

    Science.gov (United States)

    Diefenbeck, Michael; Mückley, Thomas; Zankovych, Sergiy; Bossert, Jörg; Jandt, Klaus D; Schrader, Christian; Schmidt, Jürgen; Finger, Ulrich; Faucon, Mathilde

    2011-01-01

    Background: The effects of freezing-thawing cycles on intramedullary bone-implant interfaces have been studied in a rat model in mechanical pull-out tests. Implants: Twenty TiAl6V4 rods (Ø 0.8 mm, length 10 mm) implanted in rat tibiae Methods: 10 rats underwent bilateral tibial implantation of titanium rods. At eight weeks, the animals were sacrificed and tibiae harvested for biomechanical testing. Eight tibiae were frozen and stored at -20°C for 14 days, the remaining eight were evaluated immediately post-harvest. Pull-out tests were used to determine maximum force and interfacial shear strength. Results: There were no significant differences between fresh and those of the frozen-thawed group in maximum force or in interfacial shear strength. Conclusion: Frozen Storage of rat tibiae containing implants at -20° C has no effects on the biomechanical properties of Bone/ Implant interface. PMID:21760868

  19. Treating Simple Tibia Fractures with Poly-DL-Lactic Acid Screw as a ...

    African Journals Online (AJOL)

    ) absorbable screw as a ... fractures. Keywords: Simple tibia fracture, Fracture healing time Poly-DL-lactic acid, Poly-DL-Lactic Acid, ..... bilateral cortex of the bone due to the weak anti- ... Hu YL, Yuan WQ, Wang LF, Liu HF, Jin D. A prospective.

  20. CT imaging vs. traditional radiographic imaging for evaluating Harris Lines in tibiae

    DEFF Research Database (Denmark)

    Primeau, Charlotte; Jakobsen, Lykke Schrøder; Lynnerup, Niels

    2016-01-01

    This paper is the first to systematically investigate computer tomography (CT) images vs. ordinary flat plane radiography for evaluating Harris Lines (HL) on tibiae. Harris Lines are traditionally investigated using radiographic images and recorded as either present or absent, or by counting...

  1. Tratamento da pseudartrose infectada da tíbia pelo método de Ilizarov: técnica do encurtamento agudo com subseqüente alongamento Treatment of infected pseudoarthrosis of the tibia by Ilizarov's method: technique using acute compression and subsequent distraction

    Directory of Open Access Journals (Sweden)

    Jorge Luiz Borges

    2007-09-01

    Full Text Available OBJETIVO:Comprovar a eficácia do tratamento da pseudartrose infectada da tíbia pelo método de Ilizarov, utilizando a técnica do encurtamento agudo do foco da pseudartrose com posterior alongamento ósseo. MÉTODOS: Foram estudados 20 pacientes adultos portadores de pseudartrose unilateral infectada da tíbia, tratados no período entre novembro de 1993 e setembro de 2000. No pós-operatório, os pacientes foram avaliados quanto a dor, necessidade de órtese, avaliação da mobilidade articular, retorno às atividades normais do dia-a-dia e/ou do trabalho, consolidação da pseudartrose, cura da infecção, existência de deformidades ósseas, discrepância no comprimento dos membros e consolidação óssea na área do regenerado ósseo. RESULTADOS: Os resultados funcionais foram: excelentes em 10 pacientes (50%, bons em oito (40%, regulares em um (5% e ruins em um paciente (5%. O tempo de consolidação da pseudartrose, do segmento ósseo alongado e o tempo de uso do fixador foram proporcionais à extensão da perda óssea. CONCLUSÃO: O método de Ilizarov, associado ao encurtamento agudo com subseqüente alongamento ósseo, mostrou-se eficaz para o tratamento da pseudartrose infectada da tíbia.OBJECTIVE: To verify the effectiveness of treating the infected pseudoarthrosis of the tibia by Ilizarov's method using the technique of acute compression of the focus of pseudoarthrosis with later bone distraction. METHODS: 20 adult patients with unilateral infected pseudoarthrosis of the tibia treated from November 1993 to September 2000 were studied. In the postoperative period, the patients were evaluated for pain, orthesis requirement, joint mobility, return to daily life activities and/or to work, union of the pseudoarthrosis, cure of the infection, presence of bone deformities, discrepancy in limb length, and bone union in the bone regenerate area. RESULTS: Functional results were: excellent in 10 patients (50%, good in eight (40%, regular in

  2. Minimally invasive locked plating of distal tibia fractures is safe and effective.

    Science.gov (United States)

    Ronga, Mario; Longo, Umile Giuseppe; Maffulli, Nicola

    2010-04-01

    Distal tibial fractures are difficult to manage. Limited soft tissue and poor vascularity impose limitations for traditional plating techniques that require large exposures. The nature of the limitations for traditional plating techniques is intrinsic to the large exposure required to approach distal tibia, a bone characterized by limited soft tissue coverage and poor vascularity. The locking plate (LP) is a new device for treatment of fractures. We assessed the bone union rate, deformity, leg-length discrepancy, ankle range of motion, return to preinjury activities, infection, and complication rate in 21 selected patients who underwent minimally invasive osteosynthesis of closed distal tibia fractures with an LP. According to the AO classification, there were 12 Type A, 5 Type B, and 4 Type C fractures. The minimum followup was 2 years (average, 2.8 years; range, 2-4 years). Two patients were lost to followup. Union was achieved in all but one patient by the 24th postoperative week. Four patients had angular deformity less than 7 degrees . No patient had a leg-length discrepancy more than 1.1 cm. Five patients had ankle range of motion less than 20 degrees compared with the contralateral side. Sixteen patients had not returned to their preinjury sporting or leisure activities. Three patients developed a delayed infection. We judge the LP a reasonable device for treating distal tibia fractures. The level of physical activities appears permanently reduced in most patients. Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.

  3. Bilateral trampoline fracture of the proximal tibia in a child.

    Science.gov (United States)

    Arkink, Enrico B; van der Plas, Annelies; Sneep, Ruth W; Reijnierse, Monique

    2017-12-01

    Trampoline fractures are transversely oriented impaction fractures of the proximal tibia sustained by young children jumping on a trampoline. Unaware of the mechanism of this specific nontraumatic fracture, physicians may fail to detect these fractures on plain radiographs, as radiological findings may be very subtle. In this case report, we present a rare case of bilateral trampoline fractures with an explanation of the trauma mechanism.

  4. Pullout strength of bone-patellar tendon-bone allograft bone plugs: a comparison of cadaver tibia and rigid polyurethane foam.

    Science.gov (United States)

    Barber, F Alan

    2013-09-01

    To compare the load-to-failure pullout strength of bone-patellar tendon-bone (BPTB) allografts in human cadaver tibias and rigid polyurethane foam blocks. Twenty BPTB allografts were trimmed creating 25 mm × 10 mm × 10 mm tibial plugs. Ten-millimeter tunnels were drilled in 10 human cadaver tibias and 10 rigid polyurethane foam blocks. The BPTB anterior cruciate ligament allografts were inserted into these tunnels and secured with metal interference screws, with placement of 10 of each type in each material. After preloading (10 N), cyclic loading (500 cycles, 10 to 150 N at 200 mm/min) and load-to-failure testing (200 mm/min) were performed. The endpoints were ultimate failure load, cyclic loading elongation, and failure mode. No difference in ultimate failure load existed between grafts inserted into rigid polyurethane foam blocks (705 N) and those in cadaver tibias (669 N) (P = .69). The mean rigid polyurethane foam block elongation (0.211 mm) was less than that in tibial bone (0.470 mm) (P = .038), with a smaller standard deviation (0.07 mm for foam) than tibial bone (0.34 mm). All BPTB grafts successfully completed 500 cycles. The rigid polyurethane foam block showed less variation in test results than human cadaver tibias. Rigid polyurethane foam blocks provide an acceptable substitute for human cadaver bone tibia for biomechanical testing of BPTB allografts and offer near-equivalent results. Copyright © 2013 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

  5. Successful reconstruction for complex malunions and nonunions of the tibia and femur

    NARCIS (Netherlands)

    Buijze, Geert A.; Richardson, Shawn; Jupiter, Jesse B.

    2011-01-01

    Information regarding the long-term outcomes of the treatment of lower-extremity fracture malunion and nonunion is lacking. Twenty-nine secondarily referred patients with complex malunion or nonunion of the tibia or femur, treated by a single surgeon, were followed for a median of twenty years

  6. TWO-STAGE REOSTEOSYNTHESIS OF TIBIA IN THE PATIENT WITH FRACTURE NON-UNION COMPLICATED BY POSTOPERATIVE OSTEOMYELITIS

    Directory of Open Access Journals (Sweden)

    I. M. Efremov

    2018-01-01

    Full Text Available The authors present a case report of a patient with pseudarthrosis of the right tibia complicated by chronic postoperative osteomyelitis. The development of the osteomyelitis process is caused by locked intramedullary fixation of the right tibia by a retrograde nail. Unstable fixation led to the development of acute periimplant infection and osteomyelitis.A radical surgical debridement of the focus site of chronic infection was performed by removing locking screws and nail, removal of necrotic bone tissues by handling the tibial medullary cavity by special reamers. The authors used the pulse lavage with active removal of the solution for an additional sterilization of the surgical wound and medullary cavity. A reinforced spacer impregnated with vancomycin and polyvalent bacteriophage was placed in the medullary cavity to ensure local prolonged antimicrobial therapy. Instead of the removed monomer the polyvalent bacteriophage was introduced into the polymer composition including phages against the main infectious agents in patients of traumatology and orthopedics clinic.Three months after the first stage of treatment and stabilization of laboratory parameters the patient was readmitted to the clinic. The second stage of procedure included removal of spacer, closed antegrade locked internal fixation of the right tibia and talus by a nail with an antimicrobial coating of bone cement impregnated with vancomycin and a polyvalent bacteriophage. Antimicrobial coating of the nail was made intraoperatively using an original mold.Two stage procedure allowed to achieve a stable remission of chronic osteomyelitis and stable internal fixation of tibia pseudarthrosis with preservation of the supporting function of the lower limb.

  7. Bilateral trampoline fracture of the proximal tibia in a child

    Directory of Open Access Journals (Sweden)

    Enrico B Arkink, MD

    2017-12-01

    Full Text Available Trampoline fractures are transversely oriented impaction fractures of the proximal tibia sustained by young children jumping on a trampoline. Unaware of the mechanism of this specific nontraumatic fracture, physicians may fail to detect these fractures on plain radiographs, as radiological findings may be very subtle. In this case report, we present a rare case of bilateral trampoline fractures with an explanation of the trauma mechanism.

  8. Early injuries on the tibia and vertebrae of the mouse after incorporation of thorium 227 and radium 224

    Energy Technology Data Exchange (ETDEWEB)

    Poemsl, H

    1974-08-06

    After incorporation of 5 and 50 ..mu..Ci/kg thorium 227 as well as 25 ..mu..Ci/kg radium 224, the tibia and lumbar vertebrae of the mouse were histologically and, using cell counting, morphometrically investigated within a period of 12 weeks. Osteoblasts and mesenchymal cells proved to be the most sensitive to radiation. They were temporarily decimated after 25 ..mu..Ci/kg radium 224 in the tibial metaphysis, but soon regenerated. After 5 ..mu..Ci/kg thorium 227, osteoblasts and mesenchymal cells were only slightly reduced, but more so in the lumbar vertebrae than in the tibia. The cells of osteogenic tissue were almost completely killed by 50 ..mu..Ci/kg thorium 227. In the subsequent regeneration phase, larger regions of atypical bone occured in the tibia metaphysis which was pushed off in the further course by newly formed compact substance of epiphysial cartilage.

  9. A STUDY ON TIBIAL TORSION IN ADULT DRY TIBIA OF EAST AND SOUTH INDIAN POPULATION

    Directory of Open Access Journals (Sweden)

    Jami Sagar Prusti

    2017-05-01

    Full Text Available BACKGROUND Rotational deformities of the lower limbs are very common. There is increasing evidence that abnormal torsion in the tibia is associated with severe knee and ankle arthritis. Primary knee osteoarthritis is a leading cause of disability in older persons. Varus or valgus alignment increases the risk of osteoarthritis. Coexistence of tibial torsional deformity may increase the risk further. Variability in the tibial torsion has been reported and is due to the torsional forces applied on tibia during development. The aim of the study is to estimate the angle of tibial torsion on both sides and both sexes. The present study was an attempt to provide baseline data of tibial torsion in the East and South Indian population. MATERIALS AND METHODS The study was conducted mechanically on 100 dry adult unpaired human tibia, i.e. 50 male and 50 female bones. The measurements were recorded and statistically analysed using Student’s unpaired t-test using GraphPad Prism 5.0 (free trial version. RESULTS Out of the 100 tibia undertaken, mean value of tibial torsion angle obtained is 25.8°. In males, it is 23.68° and in females it is about 27.86°. Statistical analysis revealed significant greater average angle of tibial torsion in female bones. The angle of the right-sided bones was more and this was statistically significant. CONCLUSION The gender variation for the angle could be the result of the difference in lifestyle in day-to-day activities. The knowledge of the angle in a population could be helpful in understanding the incidence of pathogenesis related to gait and knee osteoarthritis and in view of reconstructive surgeries in orthopaedic practice.

  10. Treating Simple Tibia Fractures with Poly-DL-Lactic Acid Screw as a ...

    African Journals Online (AJOL)

    Purpose: To investigate the curative effect of poly-DL-lactic acid (PDLLA) absorbable screw as a locked intramedullary nail for simple tibia fractures. Methods: In this study, 35 patients treated with the PDLLA screw were observed, and another 35 patients treated with a traditional locking intramedullary nail were treated as ...

  11. Influence of age and housing systems on properties of tibia and humerus of Lohmann White hens1: Bone properties of laying hens in commercial housing systems.

    Science.gov (United States)

    Regmi, P; Nelson, N; Haut, R C; Orth, M W; Karcher, D M

    2017-10-01

    This study was aimed at analyzing bone properties of Lohmann White hens in different commercial housing systems at various points throughout production. Pullets reared in conventional cages (CC) were either continued in CC or moved to enriched colony cages (EN) at 19 weeks. Pullets reared in cage-free aviaries (AV) were moved to AV hen houses. Bone samples were collected from 60 hens at each of 18 and 72 wk and 30 hens at 26 and 56 wk from each housing system. Left tibiae and humeri were broken under uniform bending to analyze mechanical properties. Cortical geometry was analyzed using digital calipers at the fracture site. Contralateral tibiae and humeri were used for measurement of ash percentage. AV pullets' humeri had 41% greater cortical areas, and tibiae had 19% greater cortical areas than the CC pullets (P < 0.05). Average humeri diameter was greater in AV pullets than in CC pullets (P < 0.05), whereas the tibiae outer dimensions were similar. Aviary pullet bones had greater stiffness (31 and 7% greater for tibiae and humeri, respectively) and second moment of inertia (43 and 13% greater for tibiae and humeri, respectively) than CC pullets (P < 0.05). The differences between bones of AV and CC hens persisted throughout the laying cycle. Moving CC pullets to EN resulted in decreased endosteal resorption in humeri, evident by a 7.5% greater cortical area in the EN hens (P < 0.05). Whole-bone breaking strength did not change with age. Stiffness increased with age, while energy to failure decreased in both the tibiae and humeri. These results indicated that tibiae and humeri of laying hens become stiffer but lose toughness and become brittle with age. Furthermore, AV and EN systems can bring positive changes in mechanical and structural properties that are more pronounced in the humerus than the tibia. © 2017 Poultry Science Association Inc.

  12. Reanalysis of the Trotter Tibia Quandary and its Continued Effect on Stature Estimation of Past-Conflict Service Members.

    Science.gov (United States)

    Lynch, Jeffrey James; Brown, Carrie; Palmiotto, Andrea; Maijanen, Heli; Damann, Franklin

    2018-04-23

    Forensic casework from past-conflicts relies on the corrected historical Trotter data for stature estimation in Fordisc. For roughly 10 years', stature estimation using this data has produced point estimates for the tibia that are on average 1.25 inches less than the other long bones. This issue was identified after applying the equations derived from Fordisc to the USS Oklahoma commingled assemblage. Reevaluation of Fordisc revealed that a correction factor of 20 mm, instead of 10 mm, was mistakenly applied to the Trotter tibia data. Historical forensic anthropology reports written at the Defense POW/MIA Accounting Agency were utilized to identify that the overcorrection is isolated to Fordisc 3 with an error rate of 5% of known antemortem statures falling outside of the prediction intervals that relied on the tibia. Further evaluation of the Oklahoma sample indicates the 10 mm correction is still producing point estimates less than the other long bones. © 2018 American Academy of Forensic Sciences.

  13. Effects of ionizing radiation on the metabolism and longitudinal growth of cartilaginous embryonic chick tibiae in vitro

    International Nuclear Information System (INIS)

    Ridder, L. de; Thierens, H.; Cornelissen, M.; Segaert, O.

    1988-01-01

    The effect of ionizing radiation on the metabolism and longitudinal growth of cartilaginous tibiae of 6.5-day-old chick embryos was studied in vitro over a 3-day period. Before being cultured, tibiae received absorbed doses of 2 to 200 Gy. Of each pair, the counterpart served as control. Compared to the strong inhibition of [ 3 H]thymidine incorporation, already 50% at 10 Gy, the effects of ionizing radiation on [ 3 H]uridine and [ 3 H]proline incorporation were limited: 20 and 40% respectively at 150 Gy. Metabolism of the cartilage cells in our organ culture was almost completely arrested at 200 Gy. Light and electron microscopy showed no morphological differences between irradiated and sham-irradiated tibiae until 150 Gy. At 200 Gy necrosis of most of the cells was observed. No differences in form and arrangement of extracellular fibers were noticed. The results of the metabolic studies and the morphological observations were correlated with the effects of ionizing radiation on the longitudinal growth. In contrast to DNA synthesis, RNA transcription and synthesis of collagen fibres were radioresistant processes. (author)

  14. Effects of ionizing radiation on the metabolism and longitudinal growth of cartilaginous embryonic chick tibiae in vitro

    Energy Technology Data Exchange (ETDEWEB)

    Ridder, L. de; Thierens, H.; Cornelissen, M.; Segaert, O.

    1988-06-01

    The effect of ionizing radiation on the metabolism and longitudinal growth of cartilaginous tibiae of 6.5-day-old chick embryos was studied in vitro over a 3-day period. Before being cultured, tibiae received absorbed doses of 2 to 200 Gy. Of each pair, the counterpart served as control. Compared to the strong inhibition of (/sup 3/H)thymidine incorporation, already 50% at 10 Gy, the effects of ionizing radiation on (/sup 3/H)uridine and (/sup 3/H)proline incorporation were limited: 20 and 40% respectively at 150 Gy. Metabolism of the cartilage cells in our organ culture was almost completely arrested at 200 Gy. Light and electron microscopy showed no morphological differences between irradiated and sham-irradiated tibiae until 150 Gy. At 200 Gy necrosis of most of the cells was observed. No differences in form and arrangement of extracellular fibers were noticed. The results of the metabolic studies and the morphological observations were correlated with the effects of ionizing radiation on the longitudinal growth. In contrast to DNA synthesis, RNA transcription and synthesis of collagen fibres were radioresistant processes.

  15. Customized Knee Prosthesis in Treatment of Giant Cell Tumors of the Proximal Tibia: Application of 3-Dimensional Printing Technology in Surgical Design.

    Science.gov (United States)

    Luo, Wenbin; Huang, Lanfeng; Liu, He; Qu, Wenrui; Zhao, Xin; Wang, Chenyu; Li, Chen; Yu, Tao; Han, Qing; Wang, Jincheng; Qin, Yanguo

    2017-04-07

    BACKGROUND We explored the application of 3-dimensional (3D) printing technology in treating giant cell tumors (GCT) of the proximal tibia. A tibia block was designed and produced through 3D printing technology. We expected that this 3D-printed block would fill the bone defect after en-bloc resection. Importantly, the block, combined with a standard knee joint prosthesis, provided attachments for collateral ligaments of the knee, which can maintain knee stability. MATERIAL AND METHODS A computed tomography (CT) scan was taken of both knee joints in 4 patients with GCT of the proximal tibia. We developed a novel technique - the real-size 3D-printed proximal tibia model - to design preoperative treatment plans. Hence, with the application of 3D printing technology, a customized proximal tibia block could be designed for each patient individually, which fixed the bone defect, combined with standard knee prosthesis. RESULTS In all 4 cases, the 3D-printed block fitted the bone defect precisely. The motion range of the affected knee was 90 degrees on average, and the soft tissue balance and stability of the knee were good. After an average 7-month follow-up, the MSTS score was 19 on average. No sign of prosthesis fracture, loosening, or other relevant complications were detected. CONCLUSIONS This technique can be used to treat GCT of the proximal tibia when it is hard to achieve soft tissue balance after tumor resection. 3D printing technology simplified the design and manufacturing progress of custom-made orthopedic medical instruments. This new surgical technique could be much more widely applied because of 3D printing technology.

  16. Osteosíntesis mini-invasiva con placas bloqueadas en fracturas metafisarias distales de tibia. Resultados clínico-funcionales. [Minimally invasive plate osteosynthesis in distal metaphyseal fractures of tibia. Comparison of results between fractures AO 43A and AO 43C.

    OpenAIRE

    Juan Manuel Yañez Arauz; Ignacio Arzac Ulla; Javier Del Vecchio; Andres Eksarho; Leandro Civetta; Rodrigo Perez Davila

    2015-01-01

    Introducción Las fracturas distales de tibia son un desafío para el tratamiento debido a la escasa cobertura y particular vascularización. Los objetivos del presente estudio son analizar los resultados clínicos y funcionales de los pacientes con fractura de tibia distal; tratados con técnica MIPO (minimally invasive plate osteosynthesis) con placas bloqueadas; comparar los resultados del grupo de fracturas tipo AO 43A con las tipo AO 43C1-C2; y comparar los resultados MIPO con el tratamie...

  17. Prenatal diagnosis of chondrodysplasia punctata tibia-metacarpal type using multidetector CT and three-dimensional reconstruction

    Energy Technology Data Exchange (ETDEWEB)

    Miyazaki, Osamu [National Centre for Child Health and Development, Department of Radiology, Tokyo (Japan); Nishimura, Gen [Tokyo Metropolitan Kiyose Children' s Hospital, Department of Radiology, Tokyo (Japan); Sago, Haruhiko; Watanabe, Noriyoshi; Ebina, Shunsuke [National Centre for Child Health and Development, Department of Perinatal Medicine and Maternal Care, Tokyo (Japan)

    2007-11-15

    We report a case of chondrodysplasia punctata tibia-metacarpal type (CDP-TM) that was diagnosed prenatally using multidetector CT (MDCT) with three-dimensional (3-D) CT reconstructions. Prenatal US had shown severe thoracic hypoplasia and rhizomelic shortening of the limbs, raising the suspicion of thanatophoric dysplasia. However, MDCT showed punctate calcifications in the epiphyseal cartilage of the humeri and femora, carpal bones, and paravertebral region. On 3-D CT, the tibiae were much shorter than the fibulae, the humeri were very short and bowed, and severe platyspondyly was evident. These findings led to the diagnosis of CDP-TM. The diagnosis was confirmed on postnatal radiographs. Prenatal MDCT with 3-D images may make a useful contribution to prenatal diagnosis in selected fetuses with severe skeletal dysplasia. (orig.)

  18. The effect of dexketoprofen trometamol on the healing of diaphysis fractures of rat tibia.

    Science.gov (United States)

    Sevimli, Raşit; Uzel, Murat; Sayar, Hamide; Kalender, Ali Murat; Dökmeci, Ozer

    2013-01-01

    The aim of this study was to analyze the effect of dexketoprofen trometamol, a non-steroidal anti-inflammatory drug, on fracture healing. Closed tibia fracture was created in the right tibia of 60 male Wistar albino rats. Fixation was achieved by closed reduction and 0.5 mm intramedullary nails. Intramuscular dexketoprofen trometamol was administered at a dose of 5 mg/kg daily to the 30 rats in the study group. Rats were sacrificed in groups of 10 at the 2nd, 4th, and 6th weeks following the fracture. Fracture healing was compared mechanically, radiologically, and histopathologically between the groups. There was no statistically significant difference between the study and control groups in terms of mean values of radiological or histopathological scores at the 2nd, 4th and 6th weeks (p>0.05). Biomechanical evaluation could not be conducted in all rats in the study and control groups at the 2nd week due to early stage fracture healing. Mean biomechanical examination values were not statistically significant at the 4th and 6th weeks between the study and control groups (p>0.05). No radiological, biomechanical, and histological effects were detected in the healing of closed fractures of the tibia fixed with intramedullary nail with the long-term use of dexketoprofen trometamol. Dexketoprofen trometamol may be used in patients undergoing surgical fixation for traumatic fractures, taking into account other drugs administered together.

  19. Stress fractures about the tibia, foot, and ankle.

    Science.gov (United States)

    Shindle, Michael K; Endo, Yoshimi; Warren, Russell F; Lane, Joseph M; Helfet, David L; Schwartz, Elliott N; Ellis, Scott J

    2012-03-01

    In competitive athletes, stress fractures of the tibia, foot, and ankle are common and lead to considerable delay in return to play. Factors such as bone vascularity, training regimen, and equipment can increase the risk of stress fracture. Management is based on the fracture site. In some athletes, metabolic workup and medication are warranted. High-risk fractures, including those of the anterior tibial diaphysis, navicular, proximal fifth metatarsal, and medial malleolus, present management challenges and may require surgery, especially in high-level athletes who need to return to play quickly. Noninvasive treatment modalities such as pulsed ultrasound and extracorporeal shock wave therapy may have some benefit but require additional research.

  20. Fractures of the Distal Tibia Treated with Polyaxial Locking Plating

    OpenAIRE

    Gao, Hong; Zhang, Chang-Qing; Luo, Cong-Feng; Zhou, Zu-Bin; Zeng, Bing-Fang

    2008-01-01

    We evaluated the healing rate, complications, and functional outcomes in 32 adult patients with very short metaphyseal fragments in fractures of the distal tibia treated with a polyaxial locking system. The average distance from the distal extent of the fracture to the tibial plafond was 11 mm. All fractures healed and the average time to union was 14 weeks. Six patients (19%) reported occasional local disturbance over the medial malleolus. There were two cases of postoperative superficial in...

  1. Disregarding population specificity: its influence on the sex assessment methods from the tibia

    Czech Academy of Sciences Publication Activity Database

    Kotěrová, A.; Velemínská, J.; Dupej, J.; Brzobohatá, Hana; Pilný, A.; Brůžek, J.

    2017-01-01

    Roč. 131, č. 1 (2017), s. 251-261 ISSN 0937-9827 Institutional support: RVO:67985912 Keywords : forensic anthropology population data * sex determination * tibia * population specificity * discriminant function analysis * GAME method Subject RIV: AC - Archeology, Anthropology, Ethnology OBOR OECD: Archaeology Impact factor: 2.382, year: 2016

  2. CRESCIMENTO RADICULAR DE MUDAS DE COUVE-FLOR PRODUZIDAS EM DIFERENTES SUBSTRATOS DE PRODUÇÃO AGROECOLOGICA

    Directory of Open Access Journals (Sweden)

    Julio Cesar Gradice Saluci

    2017-05-01

    Full Text Available Este trabalho teve como objetivo avaliar o desempenho de mudas de couve flor, semeadas em diferentes substratos: e concentrações  orgânicas formuladas a partir de matéria prima disponível na região. O estudo foi desenhado no delineamento inteiramente casualizado com sete repetições considerando uma planta por repetição, em esquema fatorial 4x4, quatro substratos e quatro concentrações os tratamentos foram quatro tipos de substratos sendo um comercial comumente utilizado para produção de mudas de hortaliças e três orgânicos de produção agroecológica, ambos produzidos no setor de agroecologia do ifes-campus de alegre, sendo: S1- Composto orgânico produzido pelo processo de compostagem de restos de poda de jardim e esterco bovina fresco, de acordo com a metodologia de (SOUZA et al., 2013; S2- Vermicomposto produzido com o composto orgânico no qual foi inserido minhocas Eisenia foetida para realizar o processo de vermicompostagem e S3 - Composto orgânico  com cinzas de madeira + restos de poda de jardins + esterco bovino, compostado em sistemas de pilhas. As concentrações foram 25, 50, 75 e 100% de substrato completados com volumoso de terra de barranco característica de horizonte c, completados em volumes. Os substratos  orgânicos apresentaram bons desenvolvimento de raiz para as mudas de couve flor.

  3. Bone mineral density, chemical composition and biomechanical properties of the tibia of female rats exposed to cadmium since weaning up to skeletal maturity.

    Science.gov (United States)

    Brzóska, M M; Majewska, K; Moniuszko-Jakoniuk, J

    2005-10-01

    The influence of exposure to cadmium (Cd) during skeletal development on the risk of bone fractures at the stage of skeletal maturity was investigated on a female rat model of human exposure. The tibias of rats treated with 1, 5 or 50 mg Cd/l in drinking water for 3, 6, 9 and 12 months (since weaning) were used. The exposure to Cd dose- and time-dependently influenced the tibia bone mineral density (BMD) and chemical composition. In skeletally matured animals, at each level of the exposure to Cd, the BMD at the whole tibia and its diaphysis as well as the percentage of minerals content in the bone, including the content of zinc, copper and iron, were decreased compared to control. Moreover, in the 50 mg Cd/l group, the percentage of organic components content increased. The Cd-induced changes, at all levels of exposure, resulted in weakening in the yield strength and fracture strength of the tibia (a three-point bending test of the diaphysis and compression test with vertical loading) of the skeletally matured females. A very important and clinically useful finding of this study is that a decrease (even by several percent) in the tibia BMD results in weakness in the bone biomechanical properties and that the BMD may predict the risk of its fracture at the exposure to Cd. Moreover, the results together with our previous findings seem to suggest that tibia, due to higher vulnerability of its diaphysis, compared to the femoral diaphysis, to damage by Cd may be more useful than femur to investigate the effect of Cd on the cortical bone. The present study revealed that a low exposure to Cd (1 mg Cd/l), corresponding to low human environmental exposure, during the skeletal development affects the tibia mineral status leading to weakening in its mechanical properties at the skeletal maturity. The findings allow for the conclusion that environmental exposure to Cd during childhood and adolescence may enhance the risk of low BMD and fractures at adulthood.

  4. Evaluation of the effect of low intensity laser radiation on the osseointegration of titanium implants inserted in rabbits' tibia

    International Nuclear Information System (INIS)

    Castilho Filho, Thyrso

    2003-01-01

    The purpose of this study was to evaluate the influence of low intensity laser irradiation on bone repair process after titanium implant surgeries performed in rabbits' tibia. Thirty three Norfolk rabbits were divided into three different groups according to the implant removal period (14, 21 and 42 days). Two titanium-pure implants were inserted one in each tibia and one side was randomly chosen to be irradiated. Irradiations were performed employing a GaAlAs laser (λ=780 nm) during 10 seconds, with an energy density of 7.5 J/cm 2 on 4 spots: above, bellow, on the right and on the left side of the implants with an interval between irradiations of 48 hours during 14 days. Animals were sacrificed according to the observation times, tibias were removed and the strength removal values recorded. Results showed that, for the 21 and 42 days sacrifices periods, the irradiated side presented a statistically higher implant strength removal values when compared to the non-irradiated side. (author)

  5. Juventude em situação de vulnerabilidade social na cidade de Santo Ângelo, relações e concepções dos jovens acerca do meio urbano

    Directory of Open Access Journals (Sweden)

    Paula Cristiele Steinhaus

    2016-12-01

    Full Text Available Este trabalho foi elaborado a partir do projeto de pesquisa “Juventude em situação de vulnerabilidade social na cidade de Santo Ângelo, relações e concepções dos jovens acerca do meio urbano” que teve por objetivo proporcionar, através de grupo com os jovens, um espaço para discussão a respeito do meio urbano e acesso à cidade; Dar visibilidade aos jovens santoangelenses que vivem em situação de vulnerabilidade social; Conhecer as expectativas e projeções de futuro dos mesmos e incentivar a participação política nos meios em que estavam inseridos. O grupo ocorreu numa escola de ensino fundamental e a pesquisa seguiu na linha teórica da esquizoanálise valendo-se da cartografia como método. Considerando que o tema mais presente nas discussões foi a violência em diferentes contextos, destacamos a importância de ações que articulem poder público, instituições de ensino e sociedade civil, visando a redução das desigualdades sociais, já que esse é um fator diretamente relacionado ao fenômeno da violência e a outros fatores negativos.

  6. Allometric relationships among body mass, MUZZLE-tail length, and tibia length during the growth of Wistar rats.

    Science.gov (United States)

    Santiago, Hildemberg Agostinho Rocha de; De Pierro, Lucas Rodolfo; Reis, Rafael Menezes; Caluz, Antônio Gabriel Ricardo Engracia; Ribeiro, Victor Barbosa; Volpon, José Batista

    2015-11-01

    To investigate allometric relationships among body mass (BM), muzzle-tail length (MTL), and tibia length (TL) in Wistar rats and establish their growth rate change parameters. Eighteen male and 18 female Wistar rats were studied from the 3rd to the 21st week of age. BM, MTL, and TL were measured daily, and relative growth was compared using allometry. A positive correlation between BM and MTL (p<0.05) and BM and TL (p<0.05) was observed. Males and females showed comparable curves; however, females had turning points at a younger age. The allometric relationship between BM and MTL presented a regular increase until reaching a mass of 351 g (males) and 405 g (females). BM and TL showed an initial increase until 185 g (males) and 182 g (females), and then reached a plateau that finished at 412 g (males) and 334 g (females), to display another increase. The allometric relationship of body mass with animal length and tibia length was comparable for male and female rats, with female rats maturing earlier. Animal longitudinal growth occurred in a single stage. In contrast, tibia length depicted two stages of accelerated growth with an intermediate period of deceleration.

  7. Outcome of Distal Both Bone Leg Fractures Fixed by Intramedulary Nail for Fibula & MIPPO in Tibia.

    Science.gov (United States)

    Gupta, Anil; Anjum, Rashid; Singh, Navdeep; Hackla, Shafiq

    2015-04-01

    Fractures of the distal third of the tibia are mostly associated with a fibular fracture that often requires fixation. The preferred treatment of distal tibial fracture is the minimally invasive percutaneous plate osteosynthesis (MIPPO) procedure. However, there are no clear cut guidelines on fixation of the fibular fracture and currently most orthopedic surgeons use a plate osteosynthesis for the fibula as well. A common complication associated with dual plating is an increased chance of soft tissue necrosis, infection, and in some cases resulting in an exposed implant. We conducted a prospective study to analyze the results of fractures of the distal in both leg bones managed by the MIPPO procedure for tibial fractures and a rush nail for fibular fractures. The study was conducted in a tertiary care hospital from November 2012 to May 2014, a total of 30 fractures in 30 patients (18 males, 12 females) with a mean age of 42.4 years (26-60 years) were treated in our institution in the aforesaid time period with MIPPO for tibia and rush nail for fibular fractures. All the cases were operated on by a single surgeon in emergency within 24 hours. The patients with skin blistering and compound fractures were excluded from this study. Rehabilitative measures were proceeded as per patient's pain profile, isometric and isotonic exercises were started on the first post-operative day, with full weight bearing at 10-12 weeks after assessing clinical and radiological union. Regular follow up of patients was done, radiographs were taken at the immediate post-operative period and at 3, 6, 12 and 24 weeks. All the patients were available for regular follow up. Radiological and clinical union proceeded normally in all the patients, no patients had signs of any deep infection, delayed union or nonunion, three patients had a superficial infection of the tibial incision that healed with a change in antibiotic. The use of dual plating for fixation of the lower tibia and fibula

  8. Creep of trabecular bone from the human proximal tibia

    Energy Technology Data Exchange (ETDEWEB)

    Novitskaya, Ekaterina, E-mail: eevdokim@ucsd.edu [Mechanical and Aerospace Engineering, UC, San Diego, La Jolla, CA 92093 (United States); Materials Science and Engineering Program, UC, San Diego, La Jolla, CA 92093 (United States); Zin, Carolyn [Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218 (United States); Chang, Neil; Cory, Esther; Chen, Peter [Departments of Bioengineering and Orthopaedic Surgery, UC, San Diego, La Jolla, CA 92093 (United States); D’Lima, Darryl [Shiley Center for Orthopaedic Research and Education, Scripps Health, La Jolla, CA 92037 (United States); Sah, Robert L. [Materials Science and Engineering Program, UC, San Diego, La Jolla, CA 92093 (United States); Departments of Bioengineering and Orthopaedic Surgery, UC, San Diego, La Jolla, CA 92093 (United States); McKittrick, Joanna [Mechanical and Aerospace Engineering, UC, San Diego, La Jolla, CA 92093 (United States); Materials Science and Engineering Program, UC, San Diego, La Jolla, CA 92093 (United States)

    2014-07-01

    Creep is the deformation that occurs under a prolonged, sustained load and can lead to permanent damage in bone. Creep in bone is a complex phenomenon and varies with type of loading and local mechanical properties. Human trabecular bone samples from proximal tibia were harvested from a 71-year old female cadaver with osteoporosis. The samples were initially subjected to one cycle load up to 1% strain to determine the creep load. Samples were then loaded in compression under a constant stress for 2 h and immediately unloaded. All tests were conducted with the specimens soaked in phosphate buffered saline with proteinase inhibitors at 37 °C. Steady state creep rate and final creep strain were estimated from mechanical testing and compared with published data. The steady state creep rate correlated well with values obtained from bovine tibial and human vertebral trabecular bone, and was higher for lower density samples. Tissue architecture was analyzed by micro-computed tomography (μCT) both before and after creep testing to assess creep deformation and damage accumulated. Quantitative morphometric analysis indicated that creep induced changes in trabecular separation and the structural model index. A main mode of deformation was bending of trabeculae. - Highlights: • Compressive creep tests of human trabecular bone across the tibia were performed. • The creep rate was found to be inversely proportional to the density of the samples. • μ-computed tomography before and after testing identified regions of deformation. • Bending of the trabeculae was found to be the main deformation mode.

  9. The orientation of the mineral crystals in the radius and tibia of the sheep, and its variation with age.

    OpenAIRE

    Bacon, G E; Goodship, A E

    1991-01-01

    The direction of preferred orientation of the hydroxyapatite crystals in both the tibia and radius of the sheep is close to the long axis of the bone, notwithstanding the angle of about 30 degrees which, for the tibia, exists between the long axis and the direction of principal dynamic strain during locomotion. For both bones the orientation of the cranial cortex, which is a tension surface during locomotion, is about 40% larger than the caudal. The variation with age of the magnitude of the ...

  10. Modelação hidráulica e de qualidade da água dos sistemas de drenagem em meios urbanos

    Directory of Open Access Journals (Sweden)

    Luís Filipe de Oliveira Girão

    Full Text Available RESUMO: As inundações urbanas estão se tornando cada vez mais frequentes, de tal forma que a União Europeia publicou a Diretiva 2007/60/CE no sentido de mitigar as consequências relacionadas com este fenômeno e de impor limites à concentração de poluentes nas águas pluviais. O objetivo deste artigo foi apresentar uma modelação dos sistemas de drenagem em situação de inundações, baseada no software da United States Environmental Protection Agency (EPA, Storm Water Management Model (SWMM, em que o estudo de caso é analisar um sistema de drenagem urbana unitário, inserido na Zona Central de Coimbra, em Portugal. Recorrendo à metodologia Automatic Overland Flow Delineation (AOFD para a geração de uma rede de drenagem superficial e implementando-a no SWMM, obteve-se um modelo de drenagem dual, que permite a análise do escoamento em situação de inundações, incluindo o controle de escoamento entre a superfície e a rede de coletores e a modelação da qualidade da água à superfície. Este modelo permite quantificar a carga poluente à superfície, relativamente ao parâmetro de sólidos suspensos totais, para um evento de precipitação extrema.

  11. Diagnosis of an isolated occult fracture of the posterior margin of the tibia with the SPECT/CT; Diagnostic d'une fracture occulte isolee de la marge posterieure du tibia par la TEMP-TDM

    Energy Technology Data Exchange (ETDEWEB)

    Bourdon, A.; Granier, P.; Mourad, M. [Centre Hospitalier de Carcassonne Antoine-Gayraud, Service de Medecine Nucleaire, 11 - Carcassonne (France)

    2007-12-15

    We report the case of a 56-year-old woman, investigated for pains of the right ankle related to a trauma of an unspecified mechanism. The radiographic assessment was negative. The {sup 99m}Tc-HDP 3-phase bone scintigraphy highlighted, on the blood pool and the delayed images, a located lesion on the right ankle. The single photon emission computerized tomography guided by computerized tomography (SPECT-CT) showed a focused uptake on the posterior margin of the right tibia and a sharp lucent line within the tomo-scintigraphy spot of uptake. The diagnosis accepted was an isolated occult fracture of the posterior margin of the right tibia. The contribution of the {sup 99m}Tc-HDP 3-phase bone scintigraphy combined with the SPECT-CT in the diagnosis of the occult fractures is discussed. (N.C.)

  12. O ser e o não ser da universidade pública: o público e o privado em questão na educação superior brasileira

    Directory of Open Access Journals (Sweden)

    Matheus Castro da Silva

    2015-10-01

    Full Text Available Este estudo pretende investigar de que forma a Educação Superior pública se configura atualmente, levando em consideração a relação que há entre as esferas públicas e as esferas privadas em nossa sociedade. Para tanto, utilizaremos o materialismo histórico e dialético como método, em uma perspectiva para além da compreensão, mas de ação para a superação dessa realidade. Com isso, buscamos entender de que forma o Brasil está inserido na ordem mundial capitalista, que, de acordo com Autor e Autor, é de forma dependente e periférica e a maneira que isso se materializa em nossas relações sociais, neste caso, as políticas educacionais. Nesse sentido, discutir as relações entre o público e o privado na educação pública torna-se imperioso, porquanto vemos ataques cada vez maiores por parte do capital aos serviços públicos, utilizando-se do Estado, e da educação, como trincheiras avançadas no processo da luta de classes.

  13. An unusual stress fracture: Bilateral posterior longitudinal stress fracture of tibia

    OpenAIRE

    Malkoc, Melih; Korkmaz, Ozgur; Ormeci, Tugrul; Oltulu, Ismail; Isyar, Mehmet; Mahirogulları, Mahir

    2014-01-01

    INTRODUCTION Stress fractures (SF) occur when healthy bone is subjected to cyclic loading, which the normal carrying range capacity is exceeded. Usually, stress fractures occur at the metatarsal bones, calcaneus, proximal or distal tibia and tends to be unilateral. PRESENTATION OF CASE This article presents a 58-year-old male patient with bilateral posterior longitudinal tibial stress fractures. A 58 years old male suffering for persistent left calf pain and decreased walking distance for las...

  14. Deep peroneal nerve palsy due to osteochondroma arising from fibular head and proximal lateral tibia

    Directory of Open Access Journals (Sweden)

    Murat Demiroğlu

    2017-01-01

    In this study, we aimed to present a case with a drop foot resulting from osteochondromas of proximal tibia and fibula and help to guide the clinicians in differential diagnosis according to SCARE criteria Agha (2016 [3].

  15. Low Preoperative BMD Is Related to High Migration of Tibia Components in Uncemented TKA-92 Patients in a Combined DEXA and RSA Study With 2-Year Follow-Up.

    Science.gov (United States)

    Andersen, Mikkel R; Winther, Nikkolaj S; Lind, Thomas; Schrøder, Henrik M; Flivik, Gunnar; Petersen, Michael M

    2017-07-01

    The fixation of uncemented tibia components in total knee arthroplasty may rely on the bone quality of the tibia; however, no previous studies have shown convincing objective proof of this. Component migration is relevant as it has been shown to predict aseptic loosening. We performed 2-year follow-up of 92 patients who underwent total knee arthroplasty surgery with an uncemented tibia component. Bone mineral density (BMD; g/cm 2 ) of the tibia host bone was measured preoperatively using dual energy X-ray absorptiometry. The proximal tibia was divided into 2 regions of interest (ROI) in the part of the tibia bone where the components were implanted. Radiostereometric analysis was performed postoperatively and after 3, 6, 12, and 24 months. The primary outcome was maximum total point motion (MTPM; mm). Regression analysis was performed to evaluate the relation between preoperative BMD and MTPM. We found low preoperative BMD in ROI1 to be significantly related to high MTPM at all follow-ups: after 3 months (R 2  = 20%, P BMD  = 0.017), 6 months (R 2  = 29%, P BMD  = 0.003), 12 months (R 2  = 33%, P BMD  = 0.001), and 24 months (R 2  = 27%, P BMD  = 0.001). We also found a significant relation for low BMD in ROI2 and high MTPM: 3 months (R 2  = 19%, P BMD  = 0.042), 6 months (R 2  = 28%, P BMD  = 0.04), 12 months (R 2  = 32%, P BMD  = 0.004), and 24 months (R 2  = 24%, P BMD  = 0.005). Low preoperative BMD in the tibia is related to high MTPM. Thus, high migration of uncemented tibia components is to be expected in patients with poor bone quality. Copyright © 2017 Elsevier Inc. All rights reserved.

  16. Patrimônio de Fé e Religiosidade: os Bens Culturais inseridos na Festa do Senhor dos Passos em São Cristóvão, Sergipe, Brasil (Heritage of Faith and Religiosity: Cultural Objects inserted on the Festival of Senhor dos Passos in São Cristóvão

    Directory of Open Access Journals (Sweden)

    Ivan Rêgo Aragão

    2013-09-01

    Full Text Available Patrimônio de Fé e Religiosidade: os Bens Culturais inseridos na Festa do Senhor dos Passos em São Cristóvão, Sergipe, Brasil. (Heritage of Faith and Religiosity: Cultural Objects inserted on the Festival of Senhor dos Passos in São Cristóvão - DOI: 10.5752/P.2175-5841.2013v11n31p1018O conceito de Bens Culturais de uma localidade vem passando por novos paradigmas quanto à abrangência e relevância. Nesse âmbito, além do Patrimônio Material de ruas, praças, igrejas, objetos artísticos e históricos, o discurso e ações dos órgãos oficiais e da comunidade, devem também se pautar pela valorização das produções imateriais da cultura. Esses elementos envolvem os sujeitos e os sons produzidos por eles, seus ofícios, memórias, festas e religiosidade. Nesse sentido, o presente artigo visa analisar os Bens Culturais que compõem o cenário da celebração do Senhor dos Passos e descrever os seus valores histórico, religioso e artístico. A metodologia utilizada foi: pesquisa bibliográfica, documental e de campo. Após as três etapas da pesquisa e observação no local, constatado que a Festa do Senhor dos Passos em São Cristóvão possui elementos patrimoniais conectados que a transforma em um evento vinculado à identidade cultural-religiosa da região. Alguns desses elementos já são tombados nos níveis estadual, nacional e mundial, enquanto que outros, embora não reconhecidos pelos órgãos oficiais de salvaguarda do Patrimônio, são valorizados pela comunidade no que concerne a afetividade, memória, dádiva e pertencimento: Patrimônios de Fé, Religiosidade e Culto em Sergipe. Palavras-chave: Patrimônio Cultural. Festa. Religiosidade. Senhor dos Passos. São Cristóvão (Sergipe.   Abstract The concept of cultural property that belongs to one locality has been going through new paradigms regarding the scope and relevance. In this context, in addition to material assets (streets, squares, churches and historical

  17. As relações afetivas como dimensão interdependente das formações cognitivas em sala de aula: um olhar a partir de uma turma de 3° e 4° ano do Ensino Fundamental

    Directory of Open Access Journals (Sweden)

    Mauricia Ramos da Silva Eckert

    2014-07-01

    Full Text Available O artigo tem como objetivo compreender a relação afetivo-cognitiva entre professor e aluno no processo ensino/aprendizagem. A abordagem foi qualitativa, do tipo observação participante com entrevista semiestruturada, realizada na escola Maria Aparecida Amaro de Souza, em Sinop. Analisou-se como esse contexto da realidade escolar produz relações e mudanças na socialização entre o sujeito e o professor no meio pedagógico em que está inserido, com base nos fundamentos teóricos Freud, Wallon e Piaget. Foi constatado na pesquisa que a afetividade entre aluno/professor, aluno/aluno e de fundamental importância para o processo de ensino e aprendizagem na formação cognitiva.Palavras-chave: educação; afetividade; cognição; contexto pedagógico; ensino-aprendizagem.

  18. A Systematic Review and Meta-Analysis of Ilizarov Methods in the Treatment of Infected Nonunion of Tibia and Femur.

    Directory of Open Access Journals (Sweden)

    Peng Yin

    Full Text Available Infected nonunion of tibia and femur are common in clinical practice, however, the treatment of these diseases has still been a challenge for orthopaedic surgeons. Ilizarov methods can eradicate infection, compensate bone defects and promote the bone union through progressive bone histogenesis. The objective of this systematic review was to review current available studies reporting on Ilizarov methods in the treatment of infected nonunion of tibia and femur, and to perform meta-analysis of bone and functional results and complications to evaluate the efficacy of Ilizarov methods.A comprehensive literature search was performed from the SCI, PubMed, Cochrane Library; and Embase between January 1995 and August 2015. Some major data were statistically analyzed using weighted means based on the sample size in each study by SPSS 13.0, including number of patients, mean age, mean previous surgical procedures, mean bone defects, mean length of follow-up, bone union, complications per patient, external fixation time, and external fixation index(EFI. Bone results (excellent, good, fair and poor rate, functional results (excellent, good, fair and poor rate and complications were analyzed by Stata 9.0.A total of 590 patients from 24 studies were included in this systematic review. The average of bone union rate was 97.26% in all included studies. The poor rate in bone results and functional results was 8% (95%CI, 0.04-0.12; I2 = 44.1%, P = 0.065 and 10% (95%CI, 0.05-0.14; I2 = 34.7%, P = 0.121 in patients with infected nonunion of tibia and femur treated by Ilizarov methods. The rate of refracture, malunion, infectious recurrence, knee stiffness, amputation, limb edema and peroneal nerve palsy was respectively 4%, 7%, 5%, 12%, 4%, 13% and 13%.Our systematic review showed that the patients with infected nonunion of tibia and femur treated by Ilizarov methods had a low rate of poor bone and functional results. Therefore, Ilizarov methods may be a good choice

  19. An Integrated Musculoskeletal-Finite-Element Model to Evaluate Effects of Load Carriage on the Tibia During Walking.

    Science.gov (United States)

    Xu, Chun; Silder, Amy; Zhang, Ju; Hughes, Julie; Unnikrishnan, Ginu; Reifman, Jaques; Rakesh, Vineet

    2016-10-01

    Prior studies have assessed the effects of load carriage on the tibia. Here, we expand on these studies and investigate the effects of load carriage on joint reaction forces (JRFs) and the resulting spatiotemporal stress/strain distributions in the tibia. Using full-body motion and ground reaction forces from a female subject, we computed joint and muscle forces during walking for four load carriage conditions. We applied these forces as physiological loading conditions in a finite-element (FE) analysis to compute strain and stress. We derived material properties from computed tomography (CT) images of a sex-, age-, and body mass index-matched subject using a mesh morphing and mapping algorithm, and used them within the FE model. Compared to walking with no load, the knee JRFs were the most sensitive to load carriage, increasing by as much as 26.2% when carrying a 30% of body weight (BW) load (ankle: 16.4% and hip: 19.0%). Moreover, our model revealed disproportionate increases in internal JRFs with increases in load carriage, suggesting a coordinated adjustment in the musculature functions in the lower extremity. FE results reflected the complex effects of spatially varying material properties distribution and muscular engagement on tibial biomechanics during walking. We observed high stresses on the anterior crest and the medial surface of the tibia at pushoff, whereas high cumulative stress during one walking cycle was more prominent in the medioposterior aspect of the tibia. Our findings reinforce the need to include: (1) physiologically accurate loading conditions when modeling healthy subjects undergoing short-term exercise training and (2) the duration of stress exposure when evaluating stress-fracture injury risk. As a fundamental step toward understanding the instantaneous effect of external loading, our study presents a means to assess the relationship between load carriage and bone biomechanics.

  20. Associations among gait score, production data, abattoir registrations, and postmortem tibia measurements in broiler chickens

    DEFF Research Database (Denmark)

    Kittelsen, K.E.; David, B.; Moe, R.O.

    2017-01-01

    Lameness and impaired walking ability in rapidly growing meat-type broiler chickens are major welfare issues that cause economic losses. This study analyzed the prevalence of impaired walking and its associations with production data, abattoir registrations, and postmortem tibia measurements...... in Norwegian broiler chickens. Gait score (GS) was used to assess walking ability in 59 different commercial broiler flocks (Ross 308) close to the slaughter d, 5,900 broilers in total, in 3 different geographical regions. In each flock, 100 arbitrary broilers were gait scored and 10 random broilers were...... culled to harvest tibias. Abattoir registrations on flock level were collected after slaughter. A total of 24.6% of the broilers had moderate to severe gait impairment. The broilers were sampled in 2 stages, first slaughterhouse/region, and then owner/flock. The final models showed that impaired gait...

  1. SISTEMA MÓVEL ANALISADOR DE FALTA EM LINHAS DE ALTA TENSÃO

    Directory of Open Access Journals (Sweden)

    David Calhau Jorge

    2017-01-01

    Full Text Available Este trabalho apresenta uma ferramenta móvel desenvolvida para simular um relé de distância, dispositivo muito utilizado para acusar falhas em linhas de alta tensão. Os dados colhidos da rede elétrica são simulados por um microcontrolador, sendo posteriormente enviados a um celular com sistema operacional Android versão 2.3. Através de uma transmissão GSM (Sistema Global para Comunicações Móveis os dados podem ser recebidos em qualquer lugar sendo encaminhados a uma rede neural que mostrará se a falta está em determinado trecho de proteção. O objetivo do trabalho não é mostrar apenas o software Android ou a rede neural, mas como a mobilidade pode dar significativa contribuição para o setor de energia elétrica. Além de simular o relé de distância, através da rede neural, os dados adquiridos são inseridos em um banco de dados, o que produz um repositório que traz informações sobre as falhas em uma rede de alta tensão. Através da geração de gráficos, torna-se possível analisar o histórico de eventos em determinada rede elétrica e até mesmo alterar os parâmetros de funcionamento do microcontrolador. O intuito do trabalho é mostrar que as redes neurais artificiais podem substituir, com eficiência, o tradicional cálculo de faltas em linhas e mostrar, também, que o atual estágio de software/hardware dos dispositivos móveis já permite executar aplicações pesadas, a priori utilizadas em computadores pessoais. Cálculos outrora feitos em desktops e mainframes podem migrar para plataformas móveis, o que traz mobilidade. Inúmeros aplicativos, como os jogos, exploram o poder de processamento destas novas gerações, porém ainda são poucos os programas focados em sistemas elétricos de potência que estão presentes em plataformas móveis. O uso de redes neurais artificiais aliadas aos dispositivos móveis representa grandes ganhos às empresas fornecedoras de energia, as quais realizam inúmeros c

  2. O currículo em movimento: o (redesenho e a inserção do programa ensino médio inovador em uma escola pública do estado do Rio Grande do Norte

    Directory of Open Access Journals (Sweden)

    Falconiere Leone Bezerra de Oliveira

    2016-12-01

    Full Text Available No campo da ciência da educação, estudos acerca do currículo da escola básica são frequentes e têm crescido nos últimos anos, em decorrência da necessidade atribuída aos currículos em adequar os conhecimentos historicamente acumulados à demanda de sujeitos que frequentam a escola nos dias atuais. Inserido nesse contexto, este trabalho tem como objetivo principal compreender como o Programa Ensino Médio Inovador - ProEMI se insere num (redesenho do currículo em movimento e quais os desdobramentos desta inserção para a escola e a Formação das Juventudes. O aporte teórico do estudo foi a abordagem oferecida pela pedagogia crítica, bem como trabalhos da literatura especializada em currículo. Para entender o currículo do Ensino Médio e a formação para as juventudes usamos como principais referenciais teóricos Juarez Dayrell; Paulo Carrano; Carla Linhares Maia e Miguel Arroyo; para entendermos o ProEMI as discussões de Vanessa Jakimiu sobre os documentos oficiais foram de fundamental importância. Os elementos norteadores para o entendimento do diálogo estão apontados teoricamente por Paulo Freire; Hostina Nascimento e Marta Pernambuco, entre outros. Em relação à Integração Curricular usamos Maria Matos e Edi Paiva; James Beane, entre outros. Na parte empírica do trabalho, utilizamos como principal instrumento de obtenção de informação a entrevista individualizada com educadores, e a coletiva, com educandos, complementando as informações com a observação simples e análise documental. O redesenho curricular do Ensino Médio necessita integrar os saberes das juventudes para que os conhecimentos escolares se tornem mais significativos. Palavras-chave: currículo em movimento; ensino médio inovador; juventudes.

  3. Comparison of 3 Minimally Invasive Methods for Distal Tibia Fractures.

    Science.gov (United States)

    Fang, Jun-Hao; Wu, Yao-Sen; Guo, Xiao-Shan; Sun, Liao-Jun

    2016-07-01

    This study compared the results of external fixation combined with limited open reduction and internal fixation (EF + LORIF), minimally invasive percutaneous plate osteosynthesis (MIPPO), and intramedullary nailing (IMN) for distal tibia fractures. A total of 84 patients with distal tibia shaft fractures were randomized to operative stabilization using EF + LORIF (28 cases), MIPPO (28 cases), or IMN (28 cases). The 3 groups were comparable with respect to patient demographics. Data were collected on operative time and radiation time, union time, complications, time of recovery to work, secondary operations, and measured joint function using the American Orthopaedic Foot and Ankle Society (AOFAS) score. There was no significant difference in time to union, incidence of union status, time of recovery to work, and AOFAS scores among the 3 groups (P>.05). Mean operative time and radiation time in the MIPPO group were longer than those in the IMN or EF + LORIF groups (Pknee pain occurred frequently after IMN (32.1%), and irritation symptoms were encountered more frequently after MIPPO (46.4%). Although EF + LORIF was associated with fewer secondary procedures vs MIPPO or IMN, it was related with more pin-tract infections (14.3%). Findings indicated that EF + LORIF, MIPPO, and IMN all achieved similar good functional results. However, EF + LORIF had some advantages over MIPPO and IMN in reducing operative and radiation times, postoperative complications, and reoperation rate. [Orthopedics. 2016; 39(4):e627-e633.]. Copyright 2016, SLACK Incorporated.

  4. Análise macroscópica e histológica do emprego da poliuretana derivada do óleo de mamona (Ricinus communis aplicada na tíbia de cães em fase de crescimento Macroscopic and histopathologic evaluations of the use of polyurethane resins derived from castor oil (Ricinus communis applied in the tibia of the puppies

    Directory of Open Access Journals (Sweden)

    Patricia Popak Maria

    2003-08-01

    Full Text Available OBJETIVO: Estudar o efeito da poliuretana de mamona aplicada ao osso de cães em crescimento. MÉTODOS: Foram utilizados 12 cães subdivididos aleatoriamente em 3 grupos, os quais receberam o implante de mamona na face medial proximal da tíbia, com análise macroscópica e histopatológica aos 30 (GIII, 60 (GII e 90 (GI dias. RESULTADOS: A poliuretana foi recoberta por uma cápsula conjuntiva fibrosa, não ocorrendo proliferação óssea ao seu redor. CONCLUSÃO: A poliuretana é biocompatível, comportando-se como espaçador biológico em cães. Nesta espécie não ocorre a osteointegração.PURPOSE: To analyze the effects of castor oil derived poliurethane, when applied to bones of puppies. METHODS: Twelve dogs, randomly divided in 3 groups, received a castor oil derived poliurethane at the medial side of the proximal tibia. Gross and histopathologic evaluations were performed at 30 (GIII, 60 (GII and 90 (GI days. RESULTS: The poliurethane was enclosed in a connective fibrous tissue capsule and there was no new bone formation around it. CONCLUSION: The castor oil derived poliurethane is biocompatible and behaves as a biological "stand off" in dogs. Osteointegration does not occur in this species.

  5. THE RESULT OF INTRAMEDULLARY NAILING WITH BONE GRAFTING OF TIBIA'S PATHOLOGIC FRACTURE

    Directory of Open Access Journals (Sweden)

    V. M. Shapovalov

    2010-01-01

    Full Text Available The authors give the clinical case of successful surgical treatment of patient with tibia's pathologic fracture by intramedullary nailing with bone grafting. The disadvantages of such patients' treatment by plaster immobilization and by some invasive methods like vascular autografting by Ilizarov's method and bone plating were also discussed. The obvious benefits of proposed surgical treatment technique of observed patient category are shown.

  6. Phosphaturic mesenchymal tumor of the tibia with oncogenic osteomalacia in a teenager.

    Science.gov (United States)

    Farmakis, Shannon G; Siegel, Marilyn J

    2015-08-01

    Phosphaturic mesenchymal tumor is an uncommon cause of a paraneoplastic syndrome that can be associated with osteogenic osteomalacia. This tumor most commonly occurs in middle-aged men and women. We report a rare case of a phosphaturic mesenchymal tumor in a 16-year-old girl with multiple fractures as a result of severe osteoporosis. CT and MRI showed a mass arising from the tibia.

  7. Metastatic transitional cell carcinoma of the tibia radiologically mimicking osteosarcoma.

    LENUS (Irish Health Repository)

    Cunningham, Laurence Patrick

    2013-01-01

    We report a case of a 73-year-old lady with transitional cell carcinoma and no evidence of metastatic disease presenting with gradual weight loss, pretibial swelling and painful weightbearing. Investigations revealed a lesion of the right tibial diaphysis. The radiological and clinical appearance was that of primary osteosarcoma. Biopsy results revealed metastatic transitional cell carcinoma of the tibia. Intramedullary nailing was performed which relieved pain on weightbearing. The patient declined radiotherapy and was started on a palliative care regimen. This case illustrates the importance of histological diagnosis in the treatment of diaphyseal lesions.

  8. A Rare Case of Epiphyseal Chondromyxoid Fibroma of the Proximal Tibia

    International Nuclear Information System (INIS)

    Choi, Yun Sun; Kim, Byoung Suck; Lee, Seok Hoon; Song, Baek Yong; Park, Yong Koo

    2011-01-01

    Chondromyxoid fibroma is an uncommon benign cartilaginous tumor of the bone. It occurs most frequently in the metaphysis of long tubular bones, and an epiphyseal location is exceedingly rare. We present here an unusual case of a chondromyxoid fibroma that occurred in the epiphysis of the proximal tibia with an open growth plate. MR imaging findings of this tumor, which has, to the best of our knowledge, never been described in an epiphyseal location, makes the present case unique.

  9. Gap nonunion of tibia treated by Huntington′s procedure

    Directory of Open Access Journals (Sweden)

    Zile S Kundu

    2012-01-01

    Full Text Available Background: Gap nonunion that may occur following trauma or infection is a challenging problem to treat. The patients with intact or united fibula, preserved sensation in the sole, and adequate vascularity, were managed by tibialization (medialization of the fibula (Huntington′s procedure, to restore continuity of the tibia. The goal of this retrospective analysis study is to report the mid-term results following the Huntington′s procedure. Materials and Methods: 22 patients (20 males and two females age 16-34 years with segmental tibial loss more than 6 cm were operated for tibialization of fibula. The procedure was two-staged in seven and single-staged in the rest 15 patients, where the lateral aspect of the leg was relatively supple. In the two-staged procedure, the distal tibiofibular synostosis was performed six-to-eight weeks after the proximal procedure. Weightbearing (protected was started in a long leg cast after six-to-eight weeks of the second stage and continued for six-to-eight months, followed by the use of a brace. Results: The fibula started showing signs of hypertrophy within the first year after the procedure and it was more than double in breath after the four-year period. Full and unprotected weightbearing on the operated leg was achieved at an average time of 16 months. At the final followup, ten patients were very satisfied, seven satisfied, and five fairly satisfied. One patient had persistent nonunion at the proximal synostotic site even after bone grafting and secondary fixation. Conclusion: Huntington′s procedure is a safe and simple salvage procedure and remains an excellent option for treating difficult infected nonunion of the tibia in the selected indications.

  10. Análise do potencial e dos obstáculos para a dinamização dos destinos turísticos inseridos em rotas de cruzeiros marítimos

    Directory of Open Access Journals (Sweden)

    Cinthia Sena Abrahão

    2014-01-01

    Full Text Available O artigo analisaa expansão do segmento de cruzeiros marítimos no Brasil, baseando-se nos estudos sobre economia regional e turismo, tendo em vista compreender o potencial e os obstáculos para dinamização dos destinos mobilizados. O método quantitativo e a pesquisa exploratória subsidiaram a coleta e interpretação das informações. Os resultados foram estruturados em três partes, na primeira é realizada a revisão teórica sobre a temática. Na segunda, são analisados dados capazes de identificar os destinos que vêm sendo mobilizados, bem como os fatores relacionados à infraestrutura e às relações intraempersariais. A terceira é dedicada aos apontamentos finais. Depreende-se da discussão que o planejamento do desenvolvimento do segmento cruzeirístico deve considerar dois aspectos: 1 a estrutura da cadeia produtiva e a influência da liderança das empresas armadoras; 2 a lógica em rede da oferta turística que inclui na mesma teia empresas de portes distintos e que requer uma relação relativamente harmônica.

  11. Sex Classification Using the Three-Dimensional Tibia Form or Shape Including Population Specificity Approach

    Czech Academy of Sciences Publication Activity Database

    Brzobohatá, Hana; Krajíček, V.; Horák, Z.; Velemínská, J.

    2015-01-01

    Roč. 60, č. 1 (2015), s. 29-40 ISSN 0022-1198 Grant - others:GA UK(CZ) 613012 Institutional support: RVO:67985912 Keywords : forensic science * geometric morphometrics * sexual dimorphism * optical scanning * computed tomography-derived models * tibia Subject RIV: AC - Archeology, Anthropology, Ethnology Impact factor: 1.322, year: 2015

  12. Em defesa de uma certa Enfermidade: Cuidados Paliativos em Debate / In defense of a certain Disease: Palliative Care in Debate

    Directory of Open Access Journals (Sweden)

    Maria Vilela Pinto Nakasu

    2013-12-01

    Full Text Available Falar de Cuidados Paliativos é falar da finitude da vida, do alívio da dor, de ações voltadas ao cuidado integral do paciente e sua família. É igualmente falar de eutanásia, ortotanásia e, mais recentemente, de ortotanásia ativa. Falar de Cuidados Paliativos é situar a espiritualidade e a qualidade de vida e qualidade de morte como elementos fundamentais. 1-3 O campo dos Cuidados Paliativos não se limita, contudo, à esfera técnica da medicina com seus recursos farmacológicos para o alívio da dor. Este campo não se limita tampouco ao apoio psicológico de aceitação da condição de saúde, e dos lutos implicados em um processo de adoecimento e morte. Apesar de incluir a assistência espiritual no rol de suas prioridades, os Cuidados Paliativos também parecem ir muito além dela. 1-3 São numerosas as disciplinas que compõem o que se tem chamado de Filosofia dos Cuidados Paliativos, muito embora a expressão “filosofia” poderia facilmente ser substituída por “princípios”. No entanto, falar em Cuidados Paliativos não é simplesmente reunir em um grande balaio a medicina voltada a estados de terminalidade, a psicologia, a assistência espiritual e todos os equipamentos e estruturas operacionais das quais o doente depende para se manter vivo. Para além de seu viés propriamente clínico e assistencial, temas como a bioética, modelos normativos do atual paradigma da medicina, bem como a filiação deste modelo à estrutura econômica e cultural vigente no capitalismo tardio são caros aos princípios dos Cuidados Paliativos.4-7 Este trabalho examina a concepção ontológica de ser humano em sua dualidade corpo/mente em relação a qual a medicina moderna se apoia para intervir. Num segundo momento, discute o conceito de “Política de Saúde” segundo a acepção da filósofa Agnes Heller (1995. Encerra problematizando algumas questões caras ao campo dos Cuidados Paliativos referentes ao contexto social no qual

  13. Decisão pela extração dentária e incidência de cáries e perdas dentárias em idosos da coorte de Carlos Barbosa, RS : perspectivas qualitativa e quantitativa

    OpenAIRE

    Renato José De Marchi

    2012-01-01

    Introdução: A perda dentária e o edentulismo podem afetar de maneira significativa a saúde bucal e a saúde geral, a qualidade de vida, e a nutrição de idosos. A cárie e a perda dentária têm sido descritas como o resultado de processos que envolvem elementos biológicos, nas superfícies dentárias, e de uma combinação de fatores comportamentais e sociais. Além disso, o contexto histórico no qual os indivíduos estão inseridos influencia seus comportamentos e percepções em relação à saúde bucal. U...

  14. Envelhecimento ativo e qualidade de vida : a importância das redes sociais digitais – Facebook

    OpenAIRE

    Páscoa, Gina; Gil, Henrique

    2012-01-01

    A presente comunicação insere-se no âmbito de um estudo de caso de natureza qualitativa, realizado numa turma de informática da Universidade Sénior Albicastrense (USALBI), durante o ano letivo 2010/2011, com o objetivo de compreender a importância das TIC em geral, e do Facebook, em particular, na promoção do envelhecimento ativo e na qualidade de vida dos idosos. Tendo em conta a realidade atual em que os idosos se encontram inseridos, no grupo de cidadãos info-excluídos, surgiu o interesse ...

  15. Effects of different levels of hatchery wastes on the performance, carcass and tibia ash and some blood parameters in broiler chicks.

    Science.gov (United States)

    Mehdipour, M; Shargh, M Shams; Dastar, B; Hassani, S

    2009-09-15

    This experiment was conducted to evaluate the effects of different levels of Hatchery Wastes (HW) on performance, tibia ash, blood calcium and phosphorus concentrations in broiler chickens. Birds were fed a corn-soybean meal diet for 7 days. The experimental treatments included a corn soybean meal diet and 3 other treatments containing 1.5, 3.0 and 4.5% HW. five replicate groups of 15 Ross 308 broiler chicks were allocated to each dietary treatment. Data were analyzed in a completely randomized design. Results indicated that there were no significant differences in weight gains among different dietary treatments. Feed intake in the 4.5% treatment was significantly higher (p 0.05). Results of carcass analysis showed no significant differences between treatments. Also, there were no significant differences between blood calcium and phosphorous among treatments. The 4.5 and 3.0% hatchery wastes treatments had the highest tibia ash (p hatchery wastes as much as 3% can increase tibia strength without having adverse effect on broilers performance.

  16. Using Patient Demographics and Statistical Modeling to Predict Knee Tibia Component Sizing in Total Knee Arthroplasty.

    Science.gov (United States)

    Ren, Anna N; Neher, Robert E; Bell, Tyler; Grimm, James

    2018-06-01

    Preoperative planning is important to achieve successful implantation in primary total knee arthroplasty (TKA). However, traditional TKA templating techniques are not accurate enough to predict the component size to a very close range. With the goal of developing a general predictive statistical model using patient demographic information, ordinal logistic regression was applied to build a proportional odds model to predict the tibia component size. The study retrospectively collected the data of 1992 primary Persona Knee System TKA procedures. Of them, 199 procedures were randomly selected as testing data and the rest of the data were randomly partitioned between model training data and model evaluation data with a ratio of 7:3. Different models were trained and evaluated on the training and validation data sets after data exploration. The final model had patient gender, age, weight, and height as independent variables and predicted the tibia size within 1 size difference 96% of the time on the validation data, 94% of the time on the testing data, and 92% on a prospective cadaver data set. The study results indicated the statistical model built by ordinal logistic regression can increase the accuracy of tibia sizing information for Persona Knee preoperative templating. This research shows statistical modeling may be used with radiographs to dramatically enhance the templating accuracy, efficiency, and quality. In general, this methodology can be applied to other TKA products when the data are applicable. Copyright © 2018 Elsevier Inc. All rights reserved.

  17. Em busca do ethos comunitário: universidades catarinenses mantidas por fundações públicas de direito privado, um olhar a partir do pluralismo jurídico

    Directory of Open Access Journals (Sweden)

    Carlos Magno Spricigo Venerio

    2011-09-01

    Full Text Available O presente estudo pretende analisar a partir do pluralismo jurídico comunitário-participativo e dentro do atual panorama da gestão universitária catarinense a situação em que se encontram as universidades catarinenses mantidas por fundações públicas de direito privado. Confrontadas na virada do século com um cenário inédito de fim do virtual monopólio do ensino superior pago em suas regiões de abrangência, decorrente da expansão do ensino superior privado e do recente incremento do investimento público estatal em educação superior, estas instituições têm buscado de forma articulada o fortalecimento de sua identidade organizacional comunitária, com ênfase na afirmação da prática da gestão democrática. A partir de dados de matrículas em graduação na última década; atendimento de requisitos para credenciamento na forma de organização universitária; e análise dos diversos sistemas de eleições para reitor, o estudo busca apontar as tendências para o ensino superior pago inserido no sistema da Associação Catarinense das Fundações Educacionais – ACAFE -em processo de migração para o sistema federal de ensino.

  18. The anteroposterior axis of the tibia in Korean patients undergoing total knee replacement.

    Science.gov (United States)

    Kim, C W; Seo, S S; Kim, J H; Roh, S M; Lee, C R

    2014-11-01

    The aim of this study was to find anatomical landmarks for rotational alignment of the tibial component in total knee replacement (TKR) in a CT-based study. Pre-operative CT scanning was performed on 94 South Korean patients (nine men, 85 women, 188 knees) with osteoarthritis of the knee joint prior to TKR. The tibial anteroposterior (AP) axis was defined as a line perpendicular to the femoral surgical transepicondylar axis and passing through the centre of the posterior cruciate ligament (PCL). The angles between the defined tibial AP axis and anatomical landmarks at various levels of the tibia were measured. The mean values of the angles between the defined tibial AP axis and the line connecting the anterior border of the proximal third of the tibia to the centre of the PCL was -0.2° (-17 to 14.1, sd 4.1). This was very close to the defined tibial axis, and remained so regardless of lower limb alignment and the degree of tibial bowing. Therefore, AP axis defined as described, is a reliable anatomical landmark for rotational alignment of tibial components. ©2014 The British Editorial Society of Bone & Joint Surgery.

  19. Biomechanical study of prophylactic internal fixation of the radial osteocutaneous donor site using the sheep tibia model.

    Science.gov (United States)

    Avery, C M E; Best, A; Patterson, P; Rolton, J; Ponter, A R S

    2007-09-01

    This study investigated the strengthening effect of different types of plate and position after osteotomy of the sheep tibia, which is a model for the radial osteocutaneous donor site. Fifty matched pairs of adult sheep tibias were tested in torsion and four-point bending. Firstly, the weakening effect of an osteotomy was compared with the intact bone. Then pairs of bones with an osteotomy were compared with and without reinforcement with different types of 3.5mm plate. The plate was placed in either the anterior (over the defect) or posterior (on the intact cortex) position. In torsion the mean strength of the intact bone was 45% greater than after osteotomy (P=0.02). The reinforced bone was on average 61% stronger than the unreinforced bone (Pbone was 188% greater than after osteotomy (P=0.02). The reinforced bone was on average 184% stronger then the unreinforced bone (P<0.001). The tibia was able to withstand much greater loads in bending. The dynamic compression plate was the strongest reinforcement in both torsion and bending. The position of the plate did not alter the strengthening effect in torsion but the posterior position resisted greater bending loads (P=0.01). This may not be relevant in clinical practice as the radius is likely to fracture first as a result of lower torsional forces.

  20. Percepções de escolares com deficiência visual em relação ao seu processo de escolarização

    Directory of Open Access Journals (Sweden)

    Rita de Cassia Ietto Montilha

    2009-12-01

    Full Text Available A promoção da inclusão escolar de pessoas com deficiência visual demanda que os profissionais conheçam as percepções que estes alunos têm a respeito de suas limitações e possibilidades. Neste estudo, foram identificadas características e percepções de escolares com deficiência visual em relação ao seu processo de reabilitação. Foi realizado um estudo descritivo transversal com escolares de 12 anos e mais, inseridos no sistema público de um município do Estado de São Paulo. Aplicou-se questionário mediante entrevista. Obteve-se população de 26 alunos, sendo 46,2% com visão subnormal e 53,8% com cegueira, com média de idade de 17,1 anos. A repetência escolar foi declarada por 73,1%. Entre as dificuldades escolares decorrentes da cegueira, sobressaiu-se a leitura de livros didáticos e, entre as decorrentes da visão subnormal, a visualização da lousa. O nível de escolaridade mostrou-se baixo em relação à média de idade. Evidenciaram-se percepções coerentes em relação à problemática da inclusão escolar.

  1. The use of CT for evaluate to healing of segmental replantation in rabbits' tibia

    International Nuclear Information System (INIS)

    Liu Yifan; Hong Tianlu

    2000-01-01

    Objective: To study the value of CT in the bone healing. Methods: The rabbit's tibia segments were resected and replanted X-ray and CT photograph were taken after operation at 2,4,8,12 week. Results: CT is more clear than X-ray. Conclusion: CT is superior to X-ray photography in observed bone healing

  2. A ESCOLA PARA O JOVEM: REPRESENTAÇÕES DE ALUNOS EM SITUAÇÃO DE DISTORÇÃO IDADE-SÉRIE NO MUNICÍPIO DE AREIA BRANCA-RN

    Directory of Open Access Journals (Sweden)

    Francisco das Chagas Silva Souza

    2015-08-01

    Full Text Available Este estudo visa analisar como jovens em situação de distorção idade-série e de vulnerabilidade social, alunos de uma escola pública, situada no município de Areia Branca-RN, percebem a instituição escolar em que estão inseridos. Foi adotada a abordagem da Teoria das Representações Sociais (TRS para a fundamentação teórica. Foram selecionados oito alunos do 4º ano do Ensino Fundamental, com a idade entre 11 e 13 anos. A metodologia constou de entrevistas, da aplicação da Técnica de Associação Livre de Palavras (TALP e da elaboração de desenhos pelos alunos. Foi notado que, apesar de todas as dificuldades, os alunos pesquisados têm a escola como um elemento de transformação e a representam como um elemento fundamental para se desenvolver como pessoa. Também foi observado que diante de tantos desencontros esses jovens ainda projetam um futuro cheio de sonhos e desejos.

  3. Avaliação de impactos ambientais enquanto instrumento da política ambiental: aplicação no licenciamento de empreendimentos turístico-hoteleiros de Pernambuco

    OpenAIRE

    Regina Rodrigues Pinho, Thays

    2007-01-01

    O presente estudo discorre sobre os aspectos limitantes no processo de licenciamento ambiental de grandes empreendimentos turístico-hoteleiros em Pernambuco. Para isso, analisaram-se dois casos: o Complexo Turístico Enseada de Suape e o Centro Turístico de Guadalupe, ambos localizados no Litoral Sul do estado, em áreas com características semelhantes em termos sociais, ambientais e econômicos. Estão inseridos na zona costeira, cuja dinâmica de uso e ocupação sofre transformaçõe...

  4. Projecto e realização de sensores de temperatura analógicos e digitais

    OpenAIRE

    Águas, João Nunes

    2009-01-01

    Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Engenharia Electrotécnica e Computadores Neste documento, são apresentadas diversas topologias de sensores de temperatura de baixo consumo e custo reduzido realizáveis em tecnologia CMOS. Estes sensores podem ter inúmeras aplicações. A principal é monitorizar a temperatura do sistema em que o próprio sensor se encontra inserido, de forma a evitar que o mesmo funci...

  5. Desmoplastic fibroma of the distal tibia: A case report of a minimally invasive histological diagnosis

    Science.gov (United States)

    Levrini, Gabriele; Pattacini, Pierpaolo

    2016-01-01

    Desmoplastic fibroma (DF) is a benign, rare fibroblastic intraosseous neoplasm histologically resembling a desmoid soft tissue tumor. Although classified as benign, DF frequently exhibits an aggressive behavior, has a moderate-to-high recurrence rate, and often causes pathological fractures and extensive bone destruction. This case report presents an incidentally detected DF of the tibia, which was diagnosed using a minimally invasive approach. A 36-year-old African female patient was referred to the Department of Diagnostic Imaging of Arcispedale Santa Maria Nuova-IRCCS (Reggio Emilia, Italy), to be examined by a computed tomography scan on an outpatient basis, after an x-ray examination of the tibia, which was performed after an injury to exclude the presence of a fracture, revealed a hyperlucency of unknown origin. The aim of this study was to discuss the clinical, histological, immunohistochemical and radiographic characteristics of this rare neoplasm, with a focus on image-guided bone biopsy. PMID:27882239

  6. Compartment syndrome like picture in metaphyseal comminuted fracture of tibia treated by locking plate due to tight closure

    Directory of Open Access Journals (Sweden)

    Prafulla Herode

    2013-01-01

    Full Text Available A 22-year-old male came to casualty on 5 th May 2012 after a fall from motorcycle. He complained of excruciating pain and swelling over right knee. There was an open wound of 7 × 2 cm over supra-patellar region and diffuse swelling over knee joint with severe tenderness over proximal aspect of right tibia. X-ray showed intra-articular fracture of proximal tibia extending to diaphysis classified as type 6 by Schatzker classification for proximal tibia, with fibula shaft transverse fracture. The skin over the fracture was contused. Debridement with primary wound closure was done in emergency. Skeletal traction was applied through a lower tibial Steinman pin. Patient was operated after 15 days when wound healed and swelling subsided. Locking plate was applied on medial aspect using Minimally invasive percutaneous plate osteosysthesis (MIPPO technique. Post-operatively over 4 hours patient developed severe pain and swelling in operated leg which mimicked compartment syndrome. Suture removal was done immediately in the ward from the distal aspect, which relieved the symptoms but lead to exposure of the plate. A rotational flap was done to cover the plate in coordination with a plastic surgeon on the next day.

  7. Radioprotective effect of sodium selenite on bone repair in the tibia of ovariectomized rats

    Energy Technology Data Exchange (ETDEWEB)

    Freitas, Deborah Queiroz de; Neves, Ellen Gaby; Boscolo, Frab Norberto; Almeida, Solange Maria de [University of Campinas (UNICAMP), Piracicaba, SP (Brazil). Piracicaba Dental School. Department of Oral Diagnosis. Oral Radiology Area; Ramos-Perez, Flavia Maria de Moraes [Federal University of Pernambuco, Recife, PE (Brazil). Department of Clinical and Preventive Dentistry; Marques, Marcelo Rocha [University of Campinas (UNICAMP), Piracicaba, SP (Brazil). Piracicaba Dental School. Division of Histology. Department of Morphology

    2012-07-01

    This study evaluated protection by selenium (Se) in the bone repair process in ovariectomized rats after irradiation. For such purpose, 80 ovariectomized female Wistar rats were randomly divided into 4 experimental groups: ovariectomized (Ov), Ov/Se, Ov/irradiated (Irr) and Ov/ Se/Irr. A bone defect was created on the tibia of all animals 40 days after ovariectomy. Two days after surgery, only the Ov/Se and Ov/Se/Irr rats received 0.8 mg Se/kg. Three days after surgery, only the Ov/Irr and Ov/Se/Irr rats received 10 Gy of x-rays on the lower limb region. The animals were euthanized at 7, 14, 21 and 28 days after surgery to assess the repair process, which was evaluated by analysis of trabecular bone number (Masson Trichrome) and birefringence analysis (Picrosirius). It was possible to observe a delay in the bone repair process in the ovariectomized/irradiated group and similarity between the ovariectomized, Ov/Se and Ov/Se/Irr groups. In conclusion, sodium selenite exerted a radioprotective effect in the bone repair of tibia of ovariectomized rats without toxicity. (author)

  8. Formação continuada de professores inseridos em contextos educacionais inclusivos Continuing education of teachers inserted in inclusive educational contexts

    Directory of Open Access Journals (Sweden)

    Gilmar de Carvalho Cruz

    2011-12-01

    Full Text Available O estudo objetivou: a compreender como professoras lidam com a proposta de inclusão escolar de alunos que apresentam necessidades especiais no contexto da Educação Física; b analisar o processo de implementação de um programa de formação continuada junto a essas professoras. Participaram vinte professoras da rede municipal de ensino de uma cidade paranaense. Foram realizadas entrevistas coletivas e observações de aulas ministradas pelas participantes. Os resultados encontrados indicam que: a a despeito de suas formações iniciais, as professoras elaboram alternativas de intervenção favoráveis à inclusão escolar; b professores devem assumir a condição de protagonistas em programas de formação continuada.This study focused on: a understanding how teachers deal with the proposal of school inclusion of students with special needs in the Physical Education context; b analyzing the implementation process of a continuing education program together with these teachers. Twenty teachers from the municipal teaching network of a city in the State of Paraná took part in this research. Group interviews and observations of classes taught by the participants were carried out. Results show that: a in spite of their initial education, the teachers work out intervention alternatives in favor of school inclusion; b teachers must accept the condition of protagonists in continuing education programs.

  9. Incidence of and Risk Factors for Knee Collateral Ligament Injuries With Proximal Tibia Fractures: A Study of 32,441 Patients.

    Science.gov (United States)

    Samuel, Andre M; Diaz-Collado, Pablo J; Szolomayer, Lauren K; Wiznia, Daniel H; Chan, Wayne W; Lukasiewicz, Adam M; Basques, Bryce A; Bohl, Daniel D; Grauer, Jonathan N

    2018-03-01

    Proximal tibia fractures are associated with concurrent collateral ligament injuries. Failure to recognize these injuries may lead to chronic knee instability. The purpose of this study was to identify risk factors for concurrent collateral ligament injuries with proximal tibia fractures and their association with inpatient outcomes. A total of 32,441 patients with proximal tibia fractures were identified in the 2011-2012 National Trauma Data Bank. A total of 1445 (4.5%) had collateral ligament injuries, 794 (2.4%) had injuries to both collateral ligaments, 456 (1.4%) had a medial collateral ligament injury only, and 195 (0.6%) had a lateral collateral ligament injury only. On multivariate analysis, risk factors found to be associated with collateral ligament injuries included distal femur fracture (odds ratio, 2.1), pedestrian struck by motor vehicle (odds ratio, 2.0), obesity (odds ratio, 1.6), young age (odds ratio, 1.9 for 18 to 29 years vs 40 to 49 years), motorcycle accident (odds ratio, 1.5), and Injury Severity Score of 20 or higher (odds ratio, 1.4). In addition, patients with simultaneous injuries to both collateral ligaments had higher odds of inpatient adverse events (odds ratio, 1.51) and longer hospital stay (mean, 2.27 days longer). The risk factors reported by this study can be used to identify patients with proximal tibia fractures who may warrant more careful and thorough evaluation and imaging of their knee collateral ligaments. [Orthopedics. 2018; 41(2):e268-e276.]. Copyright 2018, SLACK Incorporated.

  10. Computed tomography to evaluate the association of fragmented heterolog cortical bone and methylmethacrylate to repare segmental bone defect produced in tibia of rabbits; Tomografia computadorizada da matriz ossea mineralizada heterologa fragmentada e metilmetacrilato na reparacao de falhas osseas segmentares produzidas em tibia de coelhos

    Energy Technology Data Exchange (ETDEWEB)

    Freitas, S.H. [Universidade Federal de Sao Paulo (USP), SP (Brazil); Doria, R.G.S. [Universidade Federal de Sao Paulo (USP), SP (Brazil). Faculdade de Zootecnia e Engenharia de Alimentos; Mendonca, F.S.; Santos, M.D.; Moreira, R. [Universidade de Cuiaba, MT (Brazil). Faculdade de Medicina Veterinaria; Simoes, R.S. [Universidade Federal de Sao Paulo (USP), SP (Brazil). Hospital Universitario; Camargo, L.M.; Simoes, M.J. [Universidade Federal de Sao Paulo (USP), SP (Brazil). Escola Paulista de Medicina; Marques, A.T.C. [Universidade de Cuiaba, MT (Brazil). Faculdade de Odontologia

    2012-11-15

    A 6mm segmental defect was performed on the metaphyseal region of the tibia of 12 rabbits and the autoclaved fragmented heterolog cortical bone conserved in glycerin (98%) and methylmethacrylate was used as a bone graft for the reconstruction. The graft was placed in the receptor bed and its integration was evaluated by computed tomography after 30, 60 and 90 days. There was gradual bone graft incorporation in the receptor bed during the time in 100% of the cases. Fragmented cortical bone heterograft and methylmethacrylate was biologically compatible and promotes bone defect reparation without signs of infection, migration and or rejection, featuring a new option of osseous substitute to fill in bone defects. (author)

  11. Redução fechada e fixação esquelética externa tipo I para tratamento de fraturas de tibiotarso em pombos domésticos (Columba livia

    Directory of Open Access Journals (Sweden)

    Alievi M.M.

    2002-01-01

    Full Text Available Estudaram-se a redução fechada e a fixação esquelética externa tipo I para o tratamento de fraturas de tibiotarso em 10 pombos domésticos (Columba livia adultos. As aves foram anestesiadas com a associação de xilazina e cetamina e em seguida foi realizada fratura do tibiotarso direito por pressão digital sobre a diáfise do membro. Quatro pinos de Kirschner, dois proximais e dois distais à linha da fratura, foram inseridos percutaneamente através de ambas as corticais ósseas e, após redução fechada da fratura, conectados externamente por uma barra de acrílico autopolimerizável na face lateral do membro. Em três aves foi observado radiograficamente desvio ósseo angular, porém, a função do membro não foi afetada. O tempo médio e o desvio-padrão para a cicatrização óssea foram 23,4± 3,0 dias. Os resultados demonstram que a redução fechada e a aplicação de fixador esquelético externo tipo I é um método efetivo para o tratamento de fraturas de tibiotarso em pombos domésticos (Columba livia.

  12. Children's labour as a risky pathways to resilience: children's growth in contexts of poor resources Trabalho infantil como um caminho em direção à resiliência marcado por riscos: o crescimento de crianças e adolescentes em contextos pobres em recursos

    Directory of Open Access Journals (Sweden)

    Michael Ungar

    2010-01-01

    Full Text Available In this paper we explore children's labor as a complex phenomenon encompassing risk factors on one hand and possible positive outcomes on the other. Based on the theory of resilience and on literature review that details children's own experiences of work, we show that children who are inserted in environments which are poor in social and physical resources may report labor as pathways to ensure their own resources to overcome adversity. Understanding children's subjective accounts of their experience permits us to see children's labor as a culturally-embedded construction. Though exploitation of children is not in the best interest of children, there is evidence that children use whatever opportunities are available, including labor, to search for the resources they need and negotiate for an identity as resilient. Implications for public policies and practices are discussed.Nesse artigo, analisamos a questão do trabalho infantil como um fenômeno complexo, englobando fatores de risco por um lado e possíveis resultados positivos por outro. Baseados na teoria da resiliência e a partir de uma revisão de literatura, centrada em pesquisas que analisam a própria experiência de crianças sobre o trabalho desenvolvido, mostramos que quando inseridos em ecologias socialmente e fisicamente pobres em recursos, crianças associam sua experiência de trabalho como um caminho para assegurar recursos próprios para superação de adversidades. A compreensão de aspectos subjetivos da experiência de crianças trabalhadores nos permite considerar o trabalho como uma construção culturalmente embasada. Apesar da exploração de crianças não se configurar como o melhor para elas, há evidências de que elas usam quaisquer oportunidades disponíveis, incluindo o trabalho, para navegar em busca de recursos que necessitam e negociam por uma identidade associada à resiliência. Implicações para políticas públicas e intervenções também s

  13. Diagnosis of an isolated occult fracture of the posterior margin of the tibia with the SPECT/CT

    International Nuclear Information System (INIS)

    Bourdon, A.; Granier, P.; Mourad, M.

    2007-01-01

    We report the case of a 56-year-old woman, investigated for pains of the right ankle related to a trauma of an unspecified mechanism. The radiographic assessment was negative. The 99m Tc-HDP 3-phase bone scintigraphy highlighted, on the blood pool and the delayed images, a located lesion on the right ankle. The single photon emission computerized tomography guided by computerized tomography (SPECT-CT) showed a focused uptake on the posterior margin of the right tibia and a sharp lucent line within the tomo-scintigraphy spot of uptake. The diagnosis accepted was an isolated occult fracture of the posterior margin of the right tibia. The contribution of the 99m Tc-HDP 3-phase bone scintigraphy combined with the SPECT-CT in the diagnosis of the occult fractures is discussed. (N.C.)

  14. Micro-angiographic investigations of revascularisation of fracture in the canine tibia

    Energy Technology Data Exchange (ETDEWEB)

    Kagel, K.O.; Koecher, W.

    1987-03-01

    Micro-angiograms were performed between eight weeks and one year following osteotomies and pressure osteosyntheses in 34 dog tibiae. Seventeen animals also underwent lumbar sympathectomy. In more than half of the cases, vascularisation of the medulla was reduced by damage to the nutrient artery. Segmental connections could be demonstrated by means of transcortical anastomoses. Following sympathectomy, revascularisation was more marked as a result of numerous trans-osseus anastomoses. This, however, did not lead to improved healing; healing was worse after sympathectomy. Transcortical revascularisation and vessel growth along drill holes are of crucial significance.

  15. Micro-angiographic investigations of revascularisation of fracture in the canine tibia

    International Nuclear Information System (INIS)

    Kagel, K.O.; Koecher, W.; Ernst-Moritz-Arndt-Universitaet, Greifswald

    1987-01-01

    Micro-angiograms were performed between eight weeks and one year following osteotomies and pressure osteosyntheses in 34 dog tibiae. Seventeen animals also underwent lumbar sympathectomy. In more than half of the cases, vascularisation of the medulla was reduced by damage to the nutrient artery. Segmental connections could be demonstrated by means of transcortical anastomoses. Following sympathectomy, revascularisation was more marked as a result of numerous trans-osseus anastomoses. This, however, did not lead to improved healing; healing was worse after sympathectomy. Transcortical revascularisation and vessel growth along drill holes are of crucial significance. (orig.) [de

  16. DIAPHYSEAL NUTRIENT FORAMINA OF ADULT HUMAN TIBIA - ITS POSITIONAL ANATOMY AND CLINICAL IMPLICATIONS. Foramen nutricio diafisario de la tibia humana adulta – Su anatomía posicional y las implicancias clínicas

    Directory of Open Access Journals (Sweden)

    Swati Gandhi

    2016-03-01

    Full Text Available El conocimiento del número y posición de los forámenes nutricios en los huesos largos es importante en los procedimientos ortopédicos, tales como la terapia de reemplazo de articulaciones, reparación de fracturas, injertos de hueso y micro-cirugía de hueso vascularizado. El presente estudio se llevó a cabo en el departamento de Anatomía, Colegio Médico Gubernamental de Amritsar. El estudio comprendió 100 tibias de humanos adultos obtenidas de 50 cadáveres masculinos y 50 femeninos. Todos los huesos del presente estudio presentaban el foramen nutricio situado en el tercio superior del eje y se dirigían hacia abajo. En la mayoría de los huesos, se encuentró lateral a la línea vertical en la superficie posterior de la diáfisis tibial. Las distancias medias de foramen nutricio de los extremos superior e inferior de la tibia eran mayores en los hombres en ambos lados. Además, estas mediciones mostraron valores más altos en los huesos de la mitad derecha. El conocimiento preciso de la ubicación de la forámenes nutricios en los huesos largos es útil en la prevención de las lesiones intra-operatorias en cirugía ortopédica, así como en cirugía plástica y reconstructiva y también es relevante en la práctica médico-legal. An understanding of the number and position of nutrient foramina in long bones is important in orthopedic procedures such as joint replacement therapy, fracture repair, bone grafts and vascularized bone microsurgery. The present study was conducted in the department of Anatomy, Govt. Medical College Amritsar. The study group comprised of 100 adult human tibiae obtained from 50 male and 50 female cadavers. All the bones of the present study depicted single nutrient foramen situated in the upper one third of the shaft and were directed downwards. In majority of the bones, it was located lateral to the vertical line on the posterior surface of tibial shaft. The mean distances of nutrient foramen from the upper

  17. Proximal tibia stress fracture with Osteoarthritis of knee - Radiological and functional analysis of one stage TKA with long stem.

    Science.gov (United States)

    Soundarrajan, Dhanasekaran; Rajkumar, Natesan; Dhanasekararaja, Palanisamy; Rajasekaran, Shanmuganathan

    2018-01-01

    Proximal tibia stress fractures with knee osteoarthritis pose a challenging situation. We evaluated the radiological and functional outcome of one-stage total knee arthroplasty (TKA) and long stem for patients with varied grades of knee arthritis and proximal tibia stress fractures.  Methods: We analysed 20 patients from April 2012 to March 2017 with proximal tibia stress fractures associated with knee osteoarthritis of varied grades. Out of 20 patients, five were acute fresh fractures. The mean age was 64 years (range, 52-78) which includes three men and 17 women. Previous surgery in the same limb, rheumatoid arthritis, valgus deformity were excluded. All patients were treated with posterior stabilised TKA with long stem, of which, four patients had screw augmentation for medial tibial bone defect and two patients with malunited fracture at stress fracture site required osteotomy, plating and bone grafting. Two patients had two level stress fracture of tibia in the same leg. The mean follow-up period was 28 (range, 6-60) months. The mean tibiofemoral angle improved from 18.27° varus to 1.8° valgus. The mean knee society score improved from 21.9 (range, -10 to 45) to 82.8 (range, 15-99) [p fractures got united at the last follow-up. One patient had infection and wound dehiscence at six months for which debridement done and had poor functional outcome. TKA with long stem gives excellent outcome, irrespective of severity of arthritis associated with stress fracture. By restoring limb alignment and bypassing the fracture site, it facilitates fracture healing. Early detection and prompt intervention is necessary to prevent the progression to recalcitrant non-union or malunion. © The Authors, published by EDP Sciences, 2018.

  18. Combined fixation, intern and external, in proximal complex fractures of the tibia

    International Nuclear Information System (INIS)

    Quintero Laverde, Jaime; Lozano Ortiz, Victor Hugo; Rojas Duque, Guillermo

    2002-01-01

    Between August of 1997 and December of 2001, they were treated in the orthopedics department and traumatology of the Hospital Clinica San Rafael, 16 patients with proximal complex fractures of the tibia, using internal fixation with plate in the lateral column and an unilateral external fixer, for the medial column. It carries out a clinical and radiological pursuit with average of 27 months (minimum 4.5, maximum 40 months). In 15 patients (93,7%) it was obtained a primary consolidation and 1 case (6,2%) it presented retard in the consolidation being necessary the placement of bony implants. in 2 cases (12,5%) there was superficial infection, one in the itinerary of the nails and another in area of superficial necrosis in soft fabrics in a closed fracture. single 1 case (6,2) it presented deep infection, which, it improve with bony curettage and antibiotics. In the final radiographic evaluation, 2 cases (12,5%) they presented depression of the lateral plate; according to the functional scale of Rasmussen excellent results were obtained (27 to 30 points) in 11 cases (68,7%) and good (20 to 26 points) in 5 cases (31,2%). The radiographic results and functional global they suggest that the combination of a technique less invasive in this area criticizes, it represents a good alternative for the treatment of the proximal complex fractures of the tibia

  19. A Novel microCT Method for Bone and Marrow Adipose Tissue Alignment Identifies Key Differences Between Mandible and Tibia in Rats.

    Science.gov (United States)

    Coutel, Xavier; Olejnik, Cécile; Marchandise, Pierre; Delattre, Jérôme; Béhal, Hélène; Kerckhofs, Greet; Penel, Guillaume

    2018-01-30

    Bone homeostasis is influenced by the bone marrow adipose tissue (BMAT). BMAT distribution varies from one anatomical location in the skeleton to another. We developed an advanced microfocus computed tomography imaging and analysis protocol that allows accurate alignment of both the BMAT distribution and bone micro-architecture as well as calculation of the distance of the BMAT adipocytes from the bone surface. Using this protocol, we detected a different spatial BMAT distribution between the rat tibia and mandible: in the proximal metaphysis of the tibia a large amount of BMAT (~ 20% of the total BMAT) was located close to the bone surface (BMAT was located between 40 and 60 µm from the bone surface. In the alveolar ridge of rats, the trabecular bone volume was 48.3% higher compared to the proximal metaphysis of the tibia (p BMAT content with almost no contact with the bone surface. These findings are of great interest because of the importance of the fat-bone interaction and its potential relevance to several resorptive bone diseases.

  20. Fracturas de tibia: tratamiento con clavo intramedular no fresado (UTN. Experiencia en el Hospital Nacional Cayetano Heredia

    Directory of Open Access Journals (Sweden)

    Carlos Ruiz Semba

    2004-04-01

    Full Text Available Objetivo: Determinar la utilidad del uso del clavo sólido intramedular no fresado (UTN en el tratamiento de las fracturas diafisiarias de tibia cerradas, expuestas y en seudoartrosis. Material y métodos: Se realizó un estudio de cohorte prospectivo y longitudinal en 12 pacientes con fractura diafisiaria de tibia tratados en el servicio de traumatología del Hospital Nacional Cayetano Heredia desde febrero 2000 hasta junio del 2001. La técnica usada para colocar el UTN fue la descrita en el Manual de Técnicas Quirúrgicas de la AO. El tiempo de seguimiento total fue de 1 año. Resultados: La consolidación con el uso de este clavo se dio en promedio a las 16 semanas, no presentándose ningún caso de no unión. A pesar de que algunos de nuestros pacientes presentaron lesiones en piel y tejidos blandos, no observamos infecciones superficiales ni profundas. Por otro lado el movimiento de la rodilla, tobillo y articulación subtalar, se inicio en el postoperatorio inmediato, logrando los pacientes hasta el momento un rango articular normal. Conclusiones: El Clavo Intramedular no fresado, es una buena alternativa en el tratamiento quirúrgico de las fracturas diafisiarias de tibia tanto cerradas y expuestas de Iº grado, así como en seudoartrosis, debido a todas las ventajas y buenos resultados obtenidos.(Rev Med Hered 2004; 15:70-75.

  1. Evolution of bone microanatomy of the tetrapod tibia and its use in palaeobiological inference.

    Science.gov (United States)

    Kriloff, A; Germain, D; Canoville, A; Vincent, P; Sache, M; Laurin, M

    2008-05-01

    Bone microanatomy appears to track changes in various physiological or ecological properties of the individual or the taxon. Analyses of sections of the tibia of 99 taxa show a highly significant (P Dimetrodon (Early Permian), the dicynodont therapsid Dicynodon (Late Permian), an unindentified gorgonopsian (Late Permian); the parareptile Pareiasaurus (Middle or Late Permian) is modelled as being aquatic, but was more likely amphibious.

  2. Avaliação do Ciclo de Aprendizagem Vivencial em uma Cooperativa Agropecuária

    Directory of Open Access Journals (Sweden)

    William Moreira Alves

    2016-10-01

    Full Text Available Este trabalho teve o intuito de avaliar a aplicação de jogos de empresa e a utilização da metodologia do CAV- Ciclo de Aprendizagem vivencial, junto aos cooperados e funcionários da COOCAFÉ - Cooperativa dos Cafeicultores da Região de Lajinha-MG. Na interpretação dos resultados foi utilizado o método DSC -Discurso do Sujeito Coletivo, que permitiu sintetizar as informações dos participantes referentes à prática dos jogos de empresas e do CAV ao transmitir as concepções das atividades realizadas por meio de discursos. O CAV possibilitou aos integrantes compartilhar o conhecimento adquirido com a aplicação do jogo de empresas e de demonstrarem seus diferentes pontos de vistas e sentimentos sobre as atividades realizadas. Inseridos em um ambiente de interação e espontaneidade os participantes puderam expor suas opiniões, desenvolver conhecimentos compartilhados e por fim enriquecer o curso através de um aprendizado coletivo.

  3. Geometry reconstruction method for patient-specific finite element models for the assessment of tibia fracture risk in osteogenesis imperfecta.

    Science.gov (United States)

    Caouette, Christiane; Ikin, Nicole; Villemure, Isabelle; Arnoux, Pierre-Jean; Rauch, Frank; Aubin, Carl-Éric

    2017-04-01

    Lower limb deformation in children with osteogenesis imperfecta (OI) impairs ambulation and may lead to fracture. Corrective surgery is based on empirical assessment criteria. The objective was to develop a reconstruction method of the tibia for OI patients that could be used as input of a comprehensive finite element model to assess fracture risks. Data were obtained from three children with OI and tibia deformities. Four pQCT scans were registered to biplanar radiographs, and a template mesh was deformed to fit the bone outline. Cortical bone thickness was computed. Sensitivity of the model to missing slices of pQCT was assessed by calculating maximal von Mises stress for a vertical hopping load case. Sensitivity of the model to ±5 % of cortical thickness measurements was assessed by calculating loads at fracture. Difference between the mesh contour and bone outline on the radiographs was below 1 mm. Removal of one pQCT slice increased maximal von Mises stress by up to 10 %. Simulated ±5 % variation of cortical bone thickness leads to variations of up to 4.1 % on predicted fracture loads. Using clinically available tibia imaging from children with OI, the developed reconstruction method allowed the building of patient-specific finite element models.

  4. Low Preoperative BMD Is Related to High Migration of Tibia Components in Uncemented TKA-92 Patients in a Combined DEXA and RSA Study With 2-Year Follow-Up

    DEFF Research Database (Denmark)

    Andersen, Mikkel R.; Winther, Nikkolaj S.; Lind, Thomas

    2017-01-01

    Background: The fixation of uncemented tibia components in total knee arthroplasty may rely on the bone quality of the tibia; however, no previous studies have shown convincing objective proof of this. Component migration is relevant as it has been shown to predict aseptic loosening. Methods: We ...

  5. Central bone grafting for nonunion of fractures of the tibia: a retrospective series.

    Science.gov (United States)

    Ryzewicz, M; Morgan, S J; Linford, E; Thwing, J I; de Resende, G V P; Smith, W R

    2009-04-01

    Nonunion of the tibia associated with bone loss, previous infection, obliteration of the intramedullary canal or located in the distal metaphysis poses a challenge to the surgeon and significant morbidity to patients. We retrospectively reviewed the records of 24 patients who were treated by central bone grafting and compared them to those of 20 who were treated with a traditional posterolateral graft. Central bone grafting entails a lateral approach, anterior to the fibula and interosseous membrane which is used to create a central space filled with cancellous iliac crest autograft. Upon consolidation, a tibiofibular synostosis is formed that is strong enough for weight-bearing. This procedure has advantages over other methods of treatment for selected nonunions. Of the 24 patients with central bone grafting, 23 went on to radiographic and clinical union without further intervention. All healed within a mean of 20 weeks (10 to 48). No further bone grafts were required, and few complications were encountered. These results were comparable to those of the 20 patients who underwent posterolateral bone grafting who united at a mean of 31.3 weeks (16 to 60) but one of whom required below-knee amputation for intractable sepsis. Central bone grafting is a safe and effective treatment for difficult nonunions of the tibia.

  6. Effect of GaAs Laser at 904 nm in the Pain Threshold in Tibia and Tolerance in Deltoid Evaluated by Pressure Algometry

    Science.gov (United States)

    Soares, Luiz G. P.; Sato, Sidney K.; Silveira, Landulfo; Aimbire, Flávio; Moreira, Leonardo M.; Pinheiro, Antônio L. B.

    2011-08-01

    The use of LLLT in pain relief is a controversial issue in Physiotherapy, with the efficacy of LLLT associated to pain relief still requiring significant study. Objective. This work focuses on the evaluation of the effect of low power GaAs laser at 904 nm in pressure pain threshold and tolerance in tibia and deltoid muscle, respectively. A total of 17 subjects were divided in two groups: active and sham laser. Measurements were taken before and after laser irradiation in healthy individuals using a pressure algometry, first verifying the viability of algometry to evaluate the pain threshold and tolerance inter individuals and comparing the differences of right and left sides in the same patients, and finally evaluating the pain threshold and tolerance before and after a single laser application. Laser energy density was of 4.0 J/cm2 with power density of 137 mW/cm2. Comparing algometry values of active laser group and the sham group, the pain tolerance in the deltoid muscle did not change among groups after laser irradiation, while it was also encountered a statistically significant difference in the pain threshold in tibia when comparing the laser active and sham laser (ppain threshold in tibia. The effective laser action in raising the pain threshold in tibia upon healthy individuals can suggest that the laser could be applied not only as curative but also with preventive purpose.

  7. Direitos humanos e ética da libertação: Pretensão política de justiça e a luta pelo reconhecimento dos novos direitos

    OpenAIRE

    Dussel, Enrique

    2015-01-01

    O presente ensaio, inserido em um horizonte de construção de uma ética da libertação e de uma filosofia política crítica, pretende analisar a historicidade dos direitos humanos e sua importância na seara das instituições políticas vigentes. A partir de uma pretensão política de justiça, toma-se em conta o sistema do direito em sua contínua tensão entre o vigente e não vigente, abrindo espaço para que os novos movimentos sociais, em suas reivindicações, conquistem novos direitos, superando sua...

  8. Verminoses dos bovinos: percepção de pecuaristas em Minas Gerais, Brasil Cattle helminthiasis: farmers perception in Minas Gerais, Brazil

    Directory of Open Access Journals (Sweden)

    Francisco Eduardo da Fonseca Delgado

    2009-09-01

    Full Text Available O presente trabalho foi realizado com o objetivo de caracterizar o controle dos endoparasitos em rebanhos bovinos do Estado de Minas Gerais. Foram aplicados questionários em 1.304 propriedades rurais, dos quais 1.289 foram validados e utilizados no estudo. As propriedades localizavam-se em 555 municípios inseridos nas 66 microrregiões do Estado de Minas Gerais e foram selecionados por amostragem aleatória. Os entrevistados foram questionados quanto ao perfil sócioeconômico, características de produção e de manejo sanitário da população bovina de cada propriedade, além das atitudes tomadas para o combate dos endoparasitos. Os resultados demonstraram que as diversas práticas de controle das verminoses recomendadas para os rebanhos bovinos são desconhecidas pela maioria dos pecuaristas.This study aimed to characterize the cattle endoparasites control in Minas Gerais State. Questionnaires were applied in 1,304 farms and 1,289 were validated and used in this study. The farms were located at 555 municipalities inserted in 66 Minas Gerais micro-regions and were selected by random sampling. The interviewees were asked about socioeconomic profile, production characteristics and cattle sanitary management of each farm, and attitudes to control the endoparasites. Results showed that the parasites control practices recomemended to cattle are unknown to most of the farmers.

  9. Avaliação microscópica da endogenia microbiana em reatores UASB concêntricos, tratando água residuária do processamento dos frutos do cafeeiro por via úmida - doi: 10.4025/actascitechnol.v33i2.8291

    Directory of Open Access Journals (Sweden)

    Júlia Ferreira da Silva

    2011-04-01

    Full Text Available Com a utilização de duas técnicas de microscopia, eletrônica de varredura (MEV e de epifluorescência, objetivou-se investigar o processo de endogenia da biomassa presente em reatores de manta de lodo e fluxo ascendente (UASB, do inglês upflow anaerobic sludge blancket. Dois reatores UASB concêntricos, funcionando em série, inseridos em um sistema-piloto de tratamento de águas residuárias do processamento dos frutos do cafeeiro por via úmida, foram monitorados quanto aos parâmetros físico-químicos e microbiológicos. Os reatores UASB operaram em campo, com oscilação de temperatura ambiente entre 16,5 e 38,8°C; as temperaturas do afluente e efluente dos reatores variaram de 16,3 a 27,3°C, respectivamente. Os dados iniciais obtidos para a demanda química de oxigênio (DQO foram de 1.349 e 1.173 mg L-1, sendo, ao final do monitoramento atingido os valores de 120 e 102 mg L-1 para os reatores 1 e 2, respectivamente. Concluiu-se que a microscopia aplicada ao perfil de sólidos dos reatores é muito importante e deve ser empregada como parâmetro de qualificação do lodo cultivado em reatores UASB, especialmente quando do decaimento bacteriano.

  10. Subchondral cysts of the tibia secondary to osteoarthritis of the knee

    International Nuclear Information System (INIS)

    Ostlere, S.J.; Seeger, L.L.; Eckardt, J.J.

    1990-01-01

    Subchondral cysts of the tibia secondary to osteoarthritis of the knee are not usually seen on radiographs. When present, they are typically small and present no diagnostic difficulty. Two cases of unusually large subchondral lesions of the medial tibial plateau are presented. The lesions were well defined and lay adjacent to the medial tibial cortex with their long axes in the sagittal plane. Both were associated with moderate medial compartment osteoarthritis. Additional information obtained from computed tomography indicated that these lesions were subchondral cysts secondary to osteoarthritis rather than tumors or other tumor-like conditions. (orig.)

  11. Em busca do ethos comunitário: universidades catarinenses mantidas por fundações públicas de direito privado, um olhar a partir do pluralismo jurídico

    Directory of Open Access Journals (Sweden)

    Carlos Magno Spricigo Venerio

    2011-06-01

    Full Text Available http://dx.doi.org/10.5007/1983-4535.2011v4n3p63   O presente estudo pretende analisar a partir do pluralismo jurídico comunitário-participativo e dentro do atual panorama da gestão universitária catarinense a situação em que se encontram as universidades catarinenses mantidas por fundações públicas de direito privado. Confrontadas na virada do século com um cenário inédito de fim do virtual monopólio do ensino superior pago em suas regiões de abrangência, decorrente da expansão do ensino superior privado e do recente incremento do investimento público estatal em educação superior, estas instituições têm buscado de forma articulada o fortalecimento de sua identidade organizacional comunitária, com ênfase na afirmação da prática da gestão democrática. A partir de dados de matrículas em graduação na última década; atendimento de requisitos para credenciamento na forma de organização universitária; e análise dos diversos sistemas de eleições para reitor, o estudo busca apontar as tendências para o ensino superior pago inserido no sistema da Associação Catarinense das Fundações Educacionais – ACAFE - em processo de migração para o sistema federal de ensino.

  12. Sexual dimorphism of the human tibia through time: insights into shape variation using a surface-based approach

    Czech Academy of Sciences Publication Activity Database

    Brzobohatá, Hana; Krajíček, V.; Horák, Z.; Velemínská, J.

    2016-01-01

    Roč. 11, č. 11 (2016), č. článku e0166461. E-ISSN 1932-6203 Institutional support: RVO:67985912 Keywords : human tibia * geometric morphometrics * sexual dimorphism * surface-based analysis Subject RIV: AC - Archeology, Anthropology, Ethnology Impact factor: 2.806, year: 2016

  13. Avaliação do processo de metalização superficial aplicado à peças obtidas por estereolitografia

    OpenAIRE

    Badotti, Alexandre Vilas Boas

    2003-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica. Em diversos setores da atividade industrial são exigidos, cada vez mais, curtos períodos de desenvolvimento e/ou aperfeiçoamento de produtos a serem inseridos no mercado. Através da técnica do processo da estereolitografia, obtêm-se peças e protótipos em menores períodos de tempo, auxiliando o campo da prototipagem rápida a tornar-se uma importante ferramen...

  14. Proximal tibia stress fracture with Osteoarthritis of knee − Radiological and functional analysis of one stage TKA with long stem

    Science.gov (United States)

    Soundarrajan, Dhanasekaran; Rajkumar, Natesan; Dhanasekararaja, Palanisamy; Rajasekaran, Shanmuganathan

    2018-01-01

    Introduction: Proximal tibia stress fractures with knee osteoarthritis pose a challenging situation. We evaluated the radiological and functional outcome of one-stage total knee arthroplasty (TKA) and long stem for patients with varied grades of knee arthritis and proximal tibia stress fractures.  Methods: We analysed 20 patients from April 2012 to March 2017 with proximal tibia stress fractures associated with knee osteoarthritis of varied grades. Out of 20 patients, five were acute fresh fractures. The mean age was 64 years (range, 52–78) which includes three men and 17 women. Previous surgery in the same limb, rheumatoid arthritis, valgus deformity were excluded. All patients were treated with posterior stabilised TKA with long stem, of which, four patients had screw augmentation for medial tibial bone defect and two patients with malunited fracture at stress fracture site required osteotomy, plating and bone grafting. Two patients had two level stress fracture of tibia in the same leg. Results: The mean follow-up period was 28 (range, 6–60) months. The mean tibiofemoral angle improved from 18.27° varus to 1.8° valgus. The mean knee society score improved from 21.9 (range, −10 to 45) to 82.8 (range, 15–99) [p fractures got united at the last follow-up. One patient had infection and wound dehiscence at six months for which debridement done and had poor functional outcome. Conclusion: TKA with long stem gives excellent outcome, irrespective of severity of arthritis associated with stress fracture. By restoring limb alignment and bypassing the fracture site, it facilitates fracture healing. Early detection and prompt intervention is necessary to prevent the progression to recalcitrant non-union or malunion. PMID:29667926

  15. Comparing hospital outcomes between open and closed tibia fractures treated with intramedullary fixation.

    Science.gov (United States)

    Smith, Evan J; Kuang, Xiangyu; Pandarinath, Rajeev

    2017-07-01

    Tibial shaft fractures comprise a large portion of operatively treated long bone fractures, and present with the highest rate of open injuries. Intramedullary fixation has become the standard of care for both open and closed injuries. The rates of short term complications and hospital length of stay for open and closed fractures treated with intramedullary fixation is not fully known. Previous series on tibia fractures were performed at high volume centers, and data were not generalizable, further they did not report on length of stay and the impact of preoperative variables on infections, complications and reoperation. We used a large surgical database to compare these outcomes while adjusting for preoperative risk factors. Data were extracted from the ACS-NSQIP database from 2005 to 2014. Cases were identified based on CPT codes for intramedullary fixation and categorized as closed vs open based on ICD9 code. In addition to demographic and case data, primary analysis examined correlation between open and closed fracture status with infection, complications, reoperation and hospital length of stay. Secondary analysis examined preoperative variables including gender, race, age, BMI, and diabetes effect on outcomes. There were 272 cases identified. There were no significant demographic differences between open and closed tibia fracture cases. Open fracture status did not increase the rate of infection, 30day complications, reoperation, or length of stay. The only preoperative factor that correlated with length of stay was age. There was no correlation between BMI, presence of insulin dependent and nondependent diabetes, and any outcome measure. When considering the complication rates for open and closed tibial shaft fractures treated with intramedullary fixation, there is no difference between 30-day complication rate, length of stay, or return to the operating room. Our reported postoperative infection rates were comparable to previous series, adding validity to

  16. Use of Relative vs Fixed Offset Distance to Define Region of Interest at the Distal Radius and Tibia in High-Resolution Peripheral Quantitative Computed Tomography

    DEFF Research Database (Denmark)

    Shanbhogue, Vikram V; Hansen, Stinus; Halekoh, Ulrich

    2015-01-01

    adjacent to the measurement site. This study aimed at compare the morphologic variation in measurements using the standard fixed offset distance to define the distal starting slice against those obtained by using a relative measurement position scaled to the individual bone length at the distal radius...... defined by, first, the standard measurement protocol, where the most distal CT slice was 9.5 mm and 22.5 mm from the end plate of the radius and tibia, respectively, and second, the relative measurement method, where the most distal CT slice was at 4% and 7% of the radial and tibial lengths, respectively....... Volumetric densities and microarchitectural parameters were compared between the 2 methods. Measurements of the total and cortical volumetric density and cortical thickness at the radius and tibia and cortical porosity, trabecular volumetric density, and trabecular number at the tibia were significantly...

  17. Micropropagação de Zantedeschia spp.: otimização do processo produtivo

    Directory of Open Access Journals (Sweden)

    LÍVIA MENDES CASTRO

    2008-07-01

    Full Text Available A produção de flores constitui-se em enorme potencial ao Agribusiness brasileiro. No entanto, para se ter acesso ao competitivo mercado de flores, é necessário vencer algumas barreiras. Uma das encontradas para a expansão de algumas espécies ornamentais, a exemplo de Zantedeschia spp., é a inexistência de protocolos eficientes de micropropagação visando à produção de mudas sadias em escala comercial e a um preço competitivo. O objetivo deste trabalho foi desenvolver protocolo específico para micropropagação da cultivar Neroli tendo em vista a otimização do processo produtivo para ganho de escala e qualidade fitossanitária das mudas obtidas. Para tanto, utilizaram-se os seguintes sistemas de esterilização de meios de cultura: a sistema tradicional com o uso de autoclave e frascos de vidro como recipientes e b sistema semi-automatizado no qual o meio de cultura é esterilizado em máquina especial (esterilizador de meio de cultura e distribuído em dois diferentes potes de plástico esterilizados por plasma: 1 com filtro inserido na tampa e 2 sem filtro inserido na tampa. Compararam-se protocolos de esterilização dos explantes, método de isolamento dos explantes meristemáticos, composição nutricional e composição de fitorreguladores dos meios de cultura. O desenvolvimento do sistema semi- automatizado proposto combinado com 4,44 µM de benzilaminopurina (BAP e uso de potes plásticos com filtro inserido nas tampas aumentaram a eficiência da micropropagação mensurada pelo comprimento médio das plântulas (5,75 ± 0,22, pelo número médio de brotos obtidos por explantes (2,56 ± 0,25 e pelo número médio de raízes (7,22 ± 0,31. O protocolo obtido pode auxiliar na redução dos custos desta ornamental, viabilizando-a comercialmente.

  18. Fracturas de implantes de tibia. Consecuencias para los ensayos de los implantes

    OpenAIRE

    Frei, S.; Ploeg, H.; Reinschmidt, C.; Heuberger, P.

    1999-01-01

    El objetivo de este trabajo es estudiar los modelos de fracturas de prótesis de tibia descritos en la literatura y, sobre la base de dichos conocimientos, desarrollar un ensayo para implantes en la cual se logren simular condiciones fisiológicas. El caso descrito con mayor frecuencia en la literatura es la migración de la parte medial de la prótesis, fenómeno que, a menudo, antecede a la fractura de la prótesis. La posición defectuosa resultante de dicha migración modifica el eje ...

  19. A concepção do role-playing game (RPG em jogadores sistemáticos

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    Ana Alayde Saldanha

    Full Text Available O Role-Playing Game (RPG vem ganhando cada vez mais espaço entre os jovens no Brasil e na área da pedagogia, na qual vem sendo utilizado como ferramenta de aprendizado nas salas de aula. Este trabalho teve como objetivo determinar qual a concepção que os jogadores sistemáticos possuem a respeito dos jogos de interpretação de personagens, ou Role-Playing Games, bem como quais os fatores motivacionais que levam à prática desse jogo. Foi utilizado para a coleta dos dados um questionário sociodemográfico e uma entrevista semi-aberta, sendo esta última analisada com base em categorias determinadas a partir dos temas suscitados. As categorias demonstraram que o RPG é percebido como um teatro improvisado, uma forma de lazer, uma terapia, uma projeção de personalidade, um facilitador das relações pessoais e como uma confraternização com amigos. Foi determinado ainda que o principal fator motivacional dos jogadores era a amizade, a vontade de estar com os companheiros de jogo. Aparentemente, o jogo de RPG possui tanto características positivas quanto negativas, sendo que a diferença estaria na forma como é utilizado. O resultado da pesquisa abre caminho para futuros estudos sobre esse tipo de jogo que já se encontra inserido na cultura em massa.

  20. Diretrizes para processo de projeto de fachadas com painéis pré-fabricados de concreto em ambiente BIM

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    Luciana de Cresce El Debs

    Full Text Available Este artigo expõe as diretrizes para a criação de um processo de elaboração de projetos que utilizam painéis pré-fabricados de fachada, tendo como base o ambiente de Building Information Modeling (BIM. Os painéis pré-fabricados arquitetônicos de concreto (PPAC foram utilizados como ponto de partida para a estruturação da proposta. A lógica de montagem justifica esta abordagem: assim como no sistema construtivo pré-fabricado, em que as peças são construídas fora do canteiro e chegam a este no momento da montagem, em BIM, os componentes da indústria da Arquitetura, Engenharia e Construção (AEC são modelados independentemente e inseridos no momento oportuno no modelo. Foram realizados estudos teóricos sobre as características dos PPACs, seguidos de consulta a profissionais experientes do setor, para confirmação da seleção de dados e procedimentos necessários para o projeto. Em seguida, elaboraram-se fluxogramas de orientação para o processo de projeto. Uma simulação do procedimento proposto foi feita com o programa Revit 2013, para validação. A proposta procura auxiliar o projetista a definir os passos de projeto, bem como os dados para a modelagem dos elementos. Ao auxiliar projetistas a conceber projetos utilizando elementos pré-fabricados, procura-se facilitar e estimular seu uso mais frequente no país.

  1. Osteosíntesis mini-invasiva con placas bloqueadas en fracturas metafisarias distales de tibia. Resultados clínico-funcionales. [Minimally invasive plate osteosynthesis in distal metaphyseal fractures of tibia. Comparison of results between fractures AO 43A and AO 43C.

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    Juan Manuel Yañez Arauz

    2015-05-01

    Full Text Available Introducción Las fracturas distales de tibia son un desafío para el tratamiento debido a la escasa cobertura y particular vascularización. Los objetivos del presente estudio son analizar los resultados clínicos y funcionales de los pacientes con fractura de tibia distal; tratados con técnica MIPO (minimally invasive plate osteosynthesis con placas bloqueadas; comparar los resultados del grupo de fracturas tipo AO 43A con las tipo AO 43C1-C2; y comparar los resultados MIPO con el tratamiento abierto convencional.   Material y métodos Entre 2004 y 2012, se evaluaron 32 fracturas de tibia distal tratadas con técnica MIPO. 20 varones y 12 mujeres. Edad promedio: 40,1 años. El 59,4% presentó fracturas tipo AO 43A; y el 40,6% AO 43C. Tiempo trauma/cirugía: 6,8 días promedio. 24 casos presentaron fractura de peroné. Estadía hospitalaria: 1,5 días promedio. Seguimiento promedio: 39,6 meses, mediante score AOFAS y radiología. Se consignaron complicaciones. Se compararon resultados de grupos  tipo AO A y los tipo AO C.   Resultados Incremento del score AOFAS entre pre y post-operatorio: 73,3 puntos promedio. El grupo AO tipo A: media de 95,89 puntos AOFAS PO. El grupo AO tipo C1-2: media de 92,15 puntos PO. Carga del peso corporal: a las 8,7 semanas promedio. Comparando A= 43A y AO 43C: p: 0,46 (no significativa. Retorno a actividad previa a la lesión:9.3 meses promedio. Comparando tipo A y tipo C: p=0,16 (no significativa. Hubo 18,75% de complicaciones y retiro de osteosíntesis en 14 casos.  Conclusiones  La osteosíntesis mínimamente invasiva con placa y tornillos, es una buena opción para las fracturas de tibia distal; con buena evolución clínico-funcional, y escasas complicaciones comparadas a la cirugía abierta. Las fracturas 43A presentan menos complicaciones mayores que las 43C, tratadas con técnica MIPO.

  2. The orientation of the mineral crystals in the radius and tibia of the sheep, and its variation with age.

    Science.gov (United States)

    Bacon, G E; Goodship, A E

    1991-01-01

    The direction of preferred orientation of the hydroxyapatite crystals in both the tibia and radius of the sheep is close to the long axis of the bone, notwithstanding the angle of about 30 degrees which, for the tibia, exists between the long axis and the direction of principal dynamic strain during locomotion. For both bones the orientation of the cranial cortex, which is a tension surface during locomotion, is about 40% larger than the caudal. The variation with age of the magnitude of the preferred orientation for the sheep bones is contrasted with what has been reported earlier for the human femur. Notably, for the sheep, both bones show substantial orientation at birth--having increased steadily during gestation--so that the animal is able to stand and walk at the outset. PMID:1817133

  3. O ateísmo de Richard Dawkins nas fronteiras da ciência evolucionista e do senso comum

    OpenAIRE

    Franco, Clarissa de

    2014-01-01

    O objeto de estudo consiste nas principais ideias ateístas de Richard Dawkins e na recepção destas por parte dos ateus inseridos na cultura brasileira. Dawkins é um dos principais divulgadores e militantes do movimento ateísta da atualidade, e a despeito de sua faceta pública divulgada em sites mundiais e em livros de reconhecido sucesso existem debates do autor, concernentes aos espaços acadêmicos e restritos a cientistas, que nem sempre se apresentam congruentes às suas e...

  4. Gender differences of the morphology of the distal femur and proximal tibia in a Korean population.

    Science.gov (United States)

    Lim, Hong-Chul; Bae, Ji-Hoon; Yoon, Ji-Yeol; Kim, Seung-Ju; Kim, Jae-Gyoon; Lee, Jae-Moon

    2013-01-01

    We conducted this study to determine whether the sizes of distal femurs and proximal tibiae in Korean men and women are different, and to assess suitability of the sizes of prostheses currently used in Korea. We performed morphological analysis of proximal tibia and distal femur on 115 patients (56 male, 59 female) using MRI to investigate a gender difference. Tibial mediolateral dimension (tMAP), tibial medial anteroposterior dimension (tMAP), tibial lateral anteroposterior dimension (tLAP) femoral mediolateral dimension (fML), femoral medial anteroposterior dimension (fMAP), and femoral lateral anteroposterior dimension (fLAP) were measured. The ratio of tMAP and tLAP to tML (plateau aspect ratio, tAP/tML×100%), and that of fMAP and fLAP to fML (condylar aspect ratio, fAP/fML×100%) were calculated. The measurements were compared with the similar dimensions of four total knee implants currently used. The tML and tAP lengths showed a significant gender difference (PtMAP/tML) revealed a significant difference between male (0.74±0.05) and female (0.68±0.04, P<0.05). For morphotype of distal femur, males were found to have significantly large values (P<0.05) in the parameters, except for fLAP. With regards to the ratio of the ML width to the AP length, the women showed a narrower ML width than the men. Both genders were distributed within the range of the dimensions of the prostheses currently used prostheses. Korean population revealed that women have smaller dimensions than male counterparts. In both genders, a relatively small size of prostheses matches distal femur and proximal tibia better among the implants currently used in Korea. Copyright © 2012 Elsevier B.V. All rights reserved.

  5. Single stage management of Gustilo type III A/B tibia fractures: Fixed with nail & covered with fasciocutaneous flap

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    G.I. Nambi

    2017-04-01

    Conclusion: Multidisciplinary management of severe lower limb trauma is important and provides good outcomes. Intramedullary nailing and immediate flap fixation can achieve early bone union and good soft tissue coverage, leading to good outcomes in patient with Grade III A & B tibia fractures.

  6. Diachronic changes in size and shape of human proximal tibia in Central Europe during the latest 1200 years

    Czech Academy of Sciences Publication Activity Database

    Brzobohatá, Hana; Krajíček, V.; Horák, Z.; Sedlak, P.; Velemínská, J.

    2016-01-01

    Roč. 67, č. 6 (2016), s. 433-446 ISSN 0018-442X Grant - others:GA UK(CZ) 613012 Institutional support: RVO:67985912 Keywords : human tibia * geometric morphometrics * diachronic trend Subject RIV: AC - Archeology, Anthropology, Ethnology Impact factor: 0.655, year: 2016

  7. The treatment of infected nonunion of the tibia following intramedullary nailing by the Ilizarov method.

    Science.gov (United States)

    Megas, Panagiotis; Saridis, Alkis; Kouzelis, Antonis; Kallivokas, Alkiviadis; Mylonas, Spyros; Tyllianakis, Minos

    2010-03-01

    The purpose of this study was to demonstrate the effectiveness of the Ilizarov method and circular external fixator in order to eradicate the infection and restore bone union, limb anatomy and functionality in cases with infected nonunion of the tibia following intramedullary nailing. During 7 years nine patients suffering from infected nonunion of the tibia after intramedullary nailing were treated in our department. The series comprised seven men and two women with an average age of 39.7 years (range 21-75 years). The patients had previously undergone an average of 4.8 operations (range 3-6 operations). Active purulent bone infection occurred in all nine patients. Bone defect was present in all patients with a mean size of 5 cm (range 2-12 cm). In three cases with bone defect less than 2 cm, monofocal compression osteosynthesis technique was used. In the rest cases where bone defect exceeded 2 cm, bifocal consecutive distraction-compression osteosynthesis technique was applied. Three patients required a local gastrocnemius flap. The mean follow-up period was 26.6 months (range 13-42 months). Results were evaluated using Paley's functional and radiological scoring system. Bone union was achieved in all nine patients without recurrence of infection during the follow-up period. Bone results were graded as excellent in five cases and good in the rest four cases. Functional results were graded as excellent in three cases, good in four and fare in two cases. Mean external fixation time was 187.4 days (range 89-412 days) and mean lengthening index was 32 days/cm (range 27-39 days/cm). Complications observed included eight grade II pin tract infections, axial deformity at the lengthening site in two cases and at the nonunion site in another two cases. Ankle joint stiffness was detected in five cases. The Ilizarov method may be an effective method in infected nonunions of the tibia following intramedullary nailing. Copyright 2009 Elsevier Ltd. All rights reserved.

  8. Risk of injury to the sural nerve during posterolateral approach to the distal tibia: An ultrasound simulation study.

    Science.gov (United States)

    Mizia, Ewa; Pękala, Przemysław A; Chomicki-Bindas, Piotr; Marchewka, Wojciech; Loukas, Marios; Zayachkowski, Alexander G; Tomaszewski, Krzysztof A

    2018-05-08

    Introduction When surgeons operate on the foot and ankle, the most common complication that may arise is injury of the cutaneous nerves. The sural nerve (SN) is potentially at risk of being injured when treating fractures involving the distal tibia using the posterolateral approach. The aim of this study was to evaluate how differences in length and position of the surgical treatment of fractures involving the distal tibia can affect the risk of SN injury. Materials and Methods The study involved 40 healthy volunteers (n=80 lower limbs). Ultrasound simulation of each potential surgical incision site was used to locate the SN and to assess the risk of injury. Results The study showed that the SN predominantly travels more posteriorly at levels more proximal from the tip of the lateral malleolus. At these more proximal points of the SN's course, it was proven that there was an overall increased incidence of iatrogenic injury to the SN in incisions made closer to the Achilles tendon. Based on these results, a quasi 3 dimensional figure was created showing the anatomical structures of this region to identify areas at high risk for SN injury. Conclusions By revealing how length and position of the surgical incision can influence the risk of SN injury, we hope to provide information to surgeons on the optimal technique to avoid iatrogenic SN injury while operating on the distal tibia via a posterolateral approach. This article is protected by copyright. All rights reserved. © 2018 Wiley Periodicals, Inc.

  9. A BRINQUEDOTECA COMO ESPAÇO DE PROMOÇÃO DA HOSPITALIDADE E GARANTIA DE DIREITOS DA CRIANÇA: um estudo de caso em um hospital da Paraíba

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    Raiane Santana do Rêgo

    2017-09-01

    Full Text Available O ato de brincar está intimamente inserido no contexto da recreação, e inúmeras pesquisas demonstram seus benefícios para o desenvolvimento social e psicológico na fase da infância. Diante de tamanha importância, o brincar foi elevado à categoria de direito fundamental da criança garantido, há tempos, em diversos instrumentos jurídicos internacionais e nacionais. Esta pesquisa objetiva analisar como a inserção das brinquedotecas em hospitais tem ajudado a garantir o “direito de brincar” das crianças, e como estes espaços têm contribuído para a promoção do “bem- entreter”, preceituado pela hospitalidade. A partir de um estudo de caso em um hospital paraibano que atende ao público infantil com câncer, constatou-se que, apesar de dispor do espaço da brinquedoteca, e atender assim a Lei da Brinquedoteca Hospitalar, sem sua efetiva utilização por uma equipe de recreação, qualificada e especializada, e de maneira planejada e contínua, o direito da criança de usufruir deste local para as brincadeiras tão importantes para sua recuperação e tratamento, acaba por não ser garantido.

  10. ANÁLISE DO PROCESSO INCLUSIVO EM UMA ESCOLA ESTADUAL NO MUNICÍPIO DE BAURU: A VOZ DE UM ALUNO COM DEFICIÊNCIA VISUAL

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    Eliza Oliveira Lippe

    Full Text Available A proposta de educação inclusiva do governo estadual de São Paulo baseia-se na adaptação curricular. O presente estudo teve por ob jetivo analisar a voz do aluno com deficiência visual incluído na sala de aula regular. Utilizou-se, para análise dos dados, a Análise Textual Discursiva. Os resultados obtidos demonstraram que o aluno com defi ciência visual está apenas inserido na sala de aula regular, e as políticas públicas pouco se atentam para a sua inclusão. Nesse sentido, observa mos a necessidade de uma formação continuada dos professores da sala regular, não apenas para adequar suas metodologias, mas também para que eles se preocupem em dialogar com os professores especialistas, empregando as salas de recursos como um espaço de apoio.

  11. [The Postero-Lateral Approach--An Alternative to Closed Anterior-Posterior Screw Fixation of a Dislocated Postero-Lateral Fragment of the Distal Tibia in Complex Ankle Fractures].

    Science.gov (United States)

    von Rüden, C; Hackl, S; Woltmann, A; Friederichs, J; Bühren, V; Hierholzer, C

    2015-06-01

    The dislocated posterolateral fragment of the distal tibia is considered as a key fragment for the successful reduction of comminuted ankle fractures. The reduction of this fragment can either be achieved indirectly by joint reduction using the technique of closed anterior-posterior screw fixation, or directly using the open posterolateral approach followed by plate fixation. The aim of this study was to compare the outcome after stabilization of the dislocated posterolateral tibia fragment using either closed reduction and screw fixation, or open reduction and plate fixation via the posterolateral approach in complex ankle fractures. In a prospective study between 01/2010 and 12/2012, all mono-injured patients with closed ankle fractures and dislocated posterolateral tibia fragments were assessed 12 months after osteosynthesis. Parameters included: size of the posterolateral tibia fragment relative to the tibial joint surface (CT scan, in %) as an indicator of injury severity, unreduced area of tibial joint surface postoperatively, treatment outcome assessed by using the "Ankle Fracture Scoring System" (AFSS), as well as epidemiological data and duration of the initial hospital treatment. In 11 patients (10 female, 1 male; age 51.6 ± 2.6 years [mean ± SEM], size of tibia fragment 42.1 ± 2.5 %) the fragment fixation was performed using a posterolateral approach. Impaired postoperative wound healing occurred in 2 patients of this group. In the comparison group, 12 patients were treated using the technique of closed anterior-posterior screw fixation (10 female, 2 male; age 59.5 ± 6.7 years, size of tibia fragment 45.9 ± 1.5 %). One patient of this group suffered an incomplete lesion of the superficial peroneal nerve. Radiological evaluation of the joint surface using CT scan imaging demonstrated significantly less dislocation of the tibial joint surface following the open posterolateral approach (0.60 ± 0.20 mm) compared to the closed

  12. Magnetic resonance study on the anatomical relationship between the posterior proximal region of the tibia and the popliteal artery ☆

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    Rogério Franco de Araujo Goes

    2015-08-01

    Full Text Available ABSTRACTOBJECTIVE: To analyze and describe the distance from the popliteal artery to three specific areas of the proximal region of the tibia, with the knee extended, by means of magnetic resonance. METHODS: Images of 100 knees of patients who underwent magnetic resonance examinations were analyzed. The location of the popliteal artery was measured in three different areas of the posterior proximal region of the tibia. The first measurement was made at the level of the knee joint (tibial plateau. The second was 9 mm distally to the tibial plateau. The third was at the level of the anterior tuberosity of the tibia (ATT. RESULTS: The distances between the popliteal artery and the tibial plateau and ATT region were significantly greater in males than in females. The distances between the popliteal artery and the regions 9 mm distally to the tibial plateau and the ATT were significantly greater in the age group over 36 years than in the group ≤36 years. CONCLUSION: Knowledge of the anatomical position of the popliteal artery, as demonstrated through magnetic resonance studies, is of great relevance in planning surgical procedures that involve the knee joint. In this manner, devastating iatrogenic injuries can be avoided, particularly in regions that are proximal to the tibial plateau and in young patients.

  13. Bilateral Complex Regional Pain Syndrome after Fracture of Bilateral Tibia and Fibula

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    Senem Şaş

    2017-04-01

    Full Text Available Complex regional syndrome type 1 (CRPS-1 is a painful clinical condition. It occurs after a painful event and characterized by allodynia, hyperalgesia, edema, abnormalities in skin blood flow and abnormal sudomotor activity. When CRPS-1 is associated with nerve injury, it is defined as CRPS-2. Central and peripheral theory are responsible in etiopathogenesis of CRPS-1. Generally it occurs in the injured limb. But, it may ocur in the opposite extremities. In this article, we present a case developing bilateral CRPS-1 after bilateral tibia and fibula fracture by reviewing current literatüre.

  14. Eficácia comunicativa do "Product placement" en producciones cinematográficas

    OpenAIRE

    Rebelo, Rosa Maria Silva

    2017-01-01

    Este trabalho tem como objeto de estudo o Product Placement. Pretendeu-se analisar a eficácia desta técnica de comunicação hibrida em filmes e avaliar o nível da hierarquia dos efeitos, cognitivos, afetivos e comportamentais, nos espetadores, relativamente a produtos e marcas inseridos nos filmes em estudo. Para o efeito, foram exibidos três filmes da filmografia James Bond, tendo os dados desta investigação resultado da aplicação dos questionários aos sujeitos da amostra,...

  15. Efeitos de alterações na zona ripária sobre a integridade de igarapés amazônicos no Baixo rio Teles Pires, Norte de Mato Grosso

    OpenAIRE

    Bleich, Monica Elisa

    2015-01-01

    Na bacia Amazônica existem muitos riachos, localmente denominados de igarapés, inseridos em paisagens heterogêneas, considerando as variações naturais das condições geomorfológicas, os períodos hidrológicos e a degradação promovida pelo desmatamento, principalmente na borda sul da bacia. Logo, o objetivo do presente estudo foi avaliar os impactos de alterações na cobertura florestal ripária sobre a estrutura do ecossistema em igarapés de cabeceira no baixo rio Teles Pires, norte de Mato Gross...

  16. Critic to the fetichism of (the) individuality and the dualism in environmental education

    OpenAIRE

    Loureiro, Carlos Frederico B.

    2006-01-01

    No presente artigo estabelecemos a crítica a duas categorias recorrentes em Educação Ambiental, tanto em termos práticos quanto discursivos: o fetichismo da individualidade e os dualismos escola-sociedade, linguagem-trabalho. À luz de um referencial teórico inserido na tradição dialética emancipatória, problematizamos os limites e as implicações pedagógicas de tais categorias no fazer educativo ambiental. Com isso, sinalizamos para a necessidade de maior reflexão e debates acerca do que repre...

  17. Histomorfometria do tecido ósseo em ratas castradas tratadas com tibolona Bone tissue histomorphometry in castrated rats treated with tibolone

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    Ana Carolina Bergmann de Carvalho

    2010-06-01

    Full Text Available INTRODUÇÃO E OBJETIVO: O efeito da tibolona utilizada em alta dose e por tempo prolongado foi analisado mediante estudo histomorfométrico de tíbias e fêmures de ratas castradas. MÉTODOS: O experimento utilizou 20 ratas Wistar, com peso médio de 250 g. Os animais foram distribuídos aleatoriamente em três grupos: ooforectomizado recebendo tibolona (OVX + T (n = 9, ooforectomizado (OVX (n = 6 e grupo controle não ooforectomizado (C (n = 5. Deu-se início ao protocolo experimental 30 dias após a ooforectomia, perdurando por 20 semanas, com administração de tibolona (1 mg/dia a OVX + T e carboximetilcelulose a OVX. O grupo C não foi submetido a qualquer tratamento. Tíbias e fêmures direitos foram fixados em formol a 10% tamponado, descalcificados e processados para inclusão em parafina. Os cortes histológicos foram corados mediante hematoxilina-eosina para análise histomorfométrica. Mediram-se a espessura cortical e a cavidade medular em cortes transversais de tíbia e fêmur e percentual de porosidade e densidade trabecular em cortes longitudinais de fêmur. RESULTADO E DISCUSSÃO: Não houve diferença estatística entre OVX e OVX + T nas diversas análises. Os resultados demonstram que a tibolona não melhorou de forma significativa a qualidade óssea, porém preservou a massa óssea cortical, nas diáfises femoral e tibial, e o osso trabecular, nos côndilos femorais. O uso prolongado de tibolona em concomitância com alta dose pode ter influenciado tais efeitos, já que estudos recentes têm preconizado a utilização de doses mais baixas na prevenção da osteoporose. CONCLUSÃO: A ooforectomia ocasionou perda óssea nas regiões analisadas; a tibolona, apesar de não ter aumentado a massa óssea, manteve-a em níveis satisfatórios.INTRODUCTION AND OBJECTIVE: The effect of tibolone administered in high dose over a prolonged period was analyzed through histomorphometry of tibia and femur samples from castrated rats. METHODS

  18. Effect of a new formulation of micronized and ultramicronized N-palmitoylethanolamine in a tibia fracture mouse model of complex regional pain syndrome.

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    Roberta Fusco

    Full Text Available Complex regional pain syndrome type 1 (CRPS-I is a disabling and frequently chronic condition. It involves the extremities and is a frequent consequence of distal tibia and radius fractures. The inflamed appearance of the affected CRPS-I limb suggests that local production of inflammatory mediators may be implicated in the ensuing etiology. A rodent tibia fracture model, characterized by inflammation, chronic unilateral hindlimb warmth, edema, protein extravasation, allodynia and hyperalgesia resembles the clinical features of patients with acute CRPS-I. N-palmitoylethanolamine (PEA, a member of the family of naturally-occurring N-acylethanolamines, is well-known for its ability to modulate inflammatory processes and regulate pain sensitivity. However, the large particle size and lipidic nature of PEA may limit its bioavailability and solubility when given orally. Micronized formulations are frequently used to enhance the dissolution rate of drug and reduce its variability of absorption when orally administered. The aim of this study was to assess the effects of a formulation of micronized and ultramicronized PEA (PEA-MPS, given orally in a mouse model of CRPS-I. CD-1 male mice were subjected to distal tibia fracture and divided into two groups: control and treated with PEA-MPS (PEA micronized 300 mg/kg and ultramicronized 600 mg/kg. Sensibility to pain was monitored in all mice throughout the course of the experiment. Twenty-eight days after tibia fracture induction animals were sacrificed and biochemical parameters evaluated. The PEA-MPS-treated group showed an improved healing process, fracture recovery and fibrosis score. PEA-MPS administration decreased mast cell density, nerve growth factor, matrix metalloproteinase 9 and cytokine expression. This treatment also reduced (poly-ADPribose polymerase activation, peroxynitrite formation and apoptosis. Our results suggest that PEA-MPS may be a new therapeutic strategy in the treatment of CRPS-I.

  19. Soft-tissue Necrosis Complicating Bone-cement Filling in a Patient with Proximal Tibia Giant cell Tumour and Co-morbid Depressive Illness

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    Sagar Narang

    2013-12-01

    Full Text Available Giant-cell tumors are common around the knee. Proximal tibia is a challenging location for limb-salvage due to paucity of soft-tissue cover. Bone cement has been used in treatment of giant-cell tumors after curettage. Tissue irritant properties of its monomer and exothermic reaction involved in polymerization may compromise surgical outcome to varying degrees. Preoperative planning and intra-operative positioning during cementing process are of importance to avoid complications. Co-occurrence of psychiatric illness in tumor patients should be managed by psychiatric counselling and drug therapy. This case has been presented to suggest measures for preventing soft-tissue complications during cement filling in proximal tibia, and for dealing with concomitant psychiatric problems for a holistic improvement in tumor patients.

  20. A STUDY OF THE MANAGEMENT OF OPEN FRACTURES OF TIBIA BY UNREAMED INTERLOCKING NAIL

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    Kuppa Srinivas

    2015-01-01

    Full Text Available AIMS AND OBJECTIVES: To evaluate the results of closed interlocking intramedullary nailing without reaming in the treatment of open fractures of t he tibial shaft and study the difficulties (complications encountered during the operative study. To compare the efficacy of interlocking intramedullary nailing without reaming in treating open fractures of tibia, Time required for the union of fracture, Range of motion of ankle and knee joint, Rate of malunion and mal rotation and Pain at the knee joint. RESULTS: The average age of patient is 32 years,83.33% are males, road traffic accidents account for majority(79.16%,right side involved in 58.33%,gustillo type II and type I compound fractures are common, full range of movements is seen in 66.67% by 12 weeks and union occurred in 95.83% by 9 months. Thirteen (54.17% patients had excellent results, six (25% patients had good results, four (1 6.67% patients had fair results and one (4.16 patient had poor result. CONCLUSION: Unreamed interlocking intramedullary nailing with the help of image intensifier seems feasible in open diaphyseal fractures of tibia with the advantages of minimal blood l oss, low risk of infection, early mobilisation , earlier soft tissue coverage , Promotes early union , minimal hospital stay and early returns to activities

  1. Papineau debridement, Ilizarov bone transport, and negative-pressure wound closure for septic bone defects of the tibia.

    Science.gov (United States)

    Karargyris, Orestis; Polyzois, Vasilios D; Karabinas, Panayiotis; Mavrogenis, Andreas F; Pneumaticos, Spyros G

    2014-08-01

    Ilizarov pioneered bone transport using a circular external fixator. Papineau described a staged technique for the treatment for infected pseudarthrosis of the long bones. This article presents a single-stage Papineau technique and Ilizarov bone transport, and postoperative negative-pressure wound dressing changes for septic bone defects of the tibia. We studied the files of seven patients (mean age, 32 years) with septic bone defects of the tibia treated with a Papineau technique and Ilizarov bone transport in a single stage, followed by postoperative negative-pressure wound dressing changes. All patients had septic pseudarthrosis and skin necrosis of the tibia. The technique included a single-stage extensive surgical debridement of necrotic bone, open bone grafting with cancellous bone autograft and bone transport, and postoperative negative-pressure wound dressing changes for wound closure. The mean time from the initial injury was 6 months (range, 4-8 months). The mean follow-up was 14 months (range, 10-17 months). All patients experienced successful wound healing at a mean of 29 days. Six patients experienced successful bone regeneration and union at the docking side at a mean of 6 months. One patient experienced delayed union at the docking site, which was treated with autologous cancellous bone grafting. Two patients experienced pin track infection, which was successfully treated with antibiotics and pin site dressing changes. All patients were able to return to their work and previous levels of activity, except one patient who had a stiff ankle joint and had to change his job. No patient experienced recurrence of infection, or fracture of the regenerated or transported bone segment until the period of this study. The combined Papineau and Ilizarov bone transport technique with negative-pressure wound closure provides for successful eradication of the infection, reconstruction of the bone defect, and soft-tissue closure. A single-stage surgical treatment is

  2. Bone densitometry as an indicator of percentage tibia ash in broiler chicks fed varying dietary calcium and phosphorus levels.

    Science.gov (United States)

    Onyango, E M; Hester, P Y; Stroshine, R; Adeola, O

    2003-11-01

    The relative sensitivity of tibia bone mineral content (BMC) and density (BMD), percentage ash (ash), and shear force as indicators for dietary Ca and P was compared in 3-wk-old broiler chicks. One hundred eight 7-d-old chicks were grouped by weight into 6 blocks of 3 cages each with 6 birds per cage. Three corn-soybean meal-based diets were randomly assigned to cages within each block. The diets were low P, medium P, and adequate P and were formulated to contain 4.0, 5.1, and 7.8 g of total P/kg feed, respectively; and 5.1, 6.7, and 10.0 g of Ca/kg feed, respectively. The chicks were fed the experimental diets for 14 d. On d 22, chicks were killed, and tibiae were removed from 3 birds/cage. Weight gain, feed intake, feed efficiency, BMC, BMD, shear force, and ash were determined. The BMC and BMD were determined using dual energy x-ray absorptiometry. Correlations among the various bone status variables and dietary Ca and P were determined. Growth performance criteria and ash increased linearly, and BMC and BMD increased linearly and quadratically as dietary concentrations of Ca and P increased. The correlation coefficient between dietary Ca and BMC, BMD, shear force, or ash was 0.89, 0.91, 0.50, or 0.89, respectively; and between dietary P and BMC, BMD, shear force, or ash was 0.88, 0.91, 0.48, or 0.89, respectively. The correlation coefficient between ash and BMC, BMD, or shear force was 0.92, 0.93, or 0.67, respectively. The correlation coefficients for linear regression between shear force and BMC or BMD was 0.56. The regression model for predicting percentage ash using BMD was as follows: percentage ash = 24 + (240 x BMD) with an r2 of 86%. It is concluded that in broiler chicks, tibia ash, BMC, and BMD may be more sensitive than shear force as indicators of dietary Ca and P concentrations and that BMD as measured by dual energy x-ray absorptiometry may be used to predict percentage of tibia ash.

  3. EVALUACIÓN HISTOLÓGICA DE BIOCOMPATIBILIDAD Y BIOCONDUCCIÓN DEL COMPUESTO HIDROXIAPATITA - LIGNINA IMPLANTADO EN TIBIA DE CONEJOS

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    Marlene Vargas V

    2009-04-01

    Full Text Available Objetivo. Evaluar histologicamente la biocompatibilidad y propiedad óseoconductora del compuesto de hidroxiapatita - lignina implantado en tibias de conejos. Material y métodos. Se utilizaron 20 conejos de raza nueva Zelanda, en cada uno, la tibia izquierda fue tratada con el compuesto y la tibia derecha no fue tratada y sirvió como control. Con la ayuda de taladro manual y una broca se realizó un defecto óseo de aproximadamente 4 mm de diámetro en la superficie lateral proximal tibial, hasta alcanzar el canal medular. Dos comprimidos del compuesto (400 mg, se utilizaron para rellenar el defecto. El mismo procedimiento quirúrgico se realizó en el grupo control, sin la utilización del compuesto. Las evaluaciones histológicas se realizaron a los 8, 30, 60, 90 y 120 días postcirugía, para lo que fue necesaria la eutanasia de 4 animales por fecha de evaluación. Resultados. En las evaluaciones de 30, 60, 90 y 120 días se observó una formación ósea más acelerada y extensa en el grupo tratado al compararse las lecturas histológicas con el grupo control. Conclusiones. El compuesto hidroxiapatita-lignina permitió el crecimiento de tejido óseo desde los bordes hasta el centro del defecto a un ritmo de crecimiento mayor, con formación de hueso mas organizado que en el grupo control. Además se observó su integración al tejido óseo; lo que sugiere su biocompatibilidad y propiedad óseoconductora, hecho que permite recomendarlo como substituto.

  4. Description of osteomyelitis lesions associated with Actinomyces pyogenes infection in the proximal tibia of adult male turkeys.

    Science.gov (United States)

    Brinton, M K; Schellberg, L C; Johnson, J B; Frank, R K; Halvorson, D A; Newman, J A

    1993-01-01

    Actinomyces pyogenes was isolated from osteomyelitis lesions from the proximal tibia of mature tom turkeys. Gram-stained impression smears of the lesions resulted in bacteria that appeared as club-shaped, gram-positive pleomorphic rods. The bacteria grew better in a reduced-oxygen environment. The lesions were well demarcated and cavernous, ranging from purulent to caseous in consistency.

  5. Unblinded randomized control trial on prophylactic antibiotic use in gustilo II open tibia fractures at Kenyatta National Hospital, Kenya.

    Science.gov (United States)

    Ondari, Joshua Nyaribari; Masika, Moses Muia; Ombachi, Richard Bwana; Ating'a, John Ernest

    2016-10-01

    To determine the difference in infection rate between 24h versus five days of prophylactic antibiotic use in management of Gustilo II open tibia fractures. Unblinded randomized control trial. Accident and Emergency, orthopedic wards and outpatient clinics at Kenyatta National Hospital (KNH). The study involved patients aged 18-80 years admitted through accident and emergency department with Gustilo II traumatic open tibia fractures. Patients were randomized into either 24hour or five day group and antibiotics started for 24hours or five days after surgical debridement. The wounds were exposed and scored using ASEPSIS wound scoring system for infection after 48h, 5days and at 14days. The main outcomes of interest were presence of infection at days 2, 5 and 14 and effect of duration to antibiotic administration on infection rate. There was no significant difference in infection rates between 24-hour and 5-day groups with infection rates of 23% (9/40) vs. 19% (7/37) respectively (p=0.699). The infection rate was significantly associated with time lapsed before administration of antibiotics (p=0.004). In the use of prophylactic antibiotics for the management of Gustilo II traumatic open tibia fractures, there is no difference in infection rate between 24hours and five days regimen but time to antibiotic administration correlates with infection rate. Antibiotic use for 24hours only has proven adequate prophylaxis against infection. This is underlined in our study which we hope shall inform practice in our setting. A larger, more appropriately controlled study would be useful. Copyright © 2016 Elsevier Ltd. All rights reserved.

  6. A Comparative 68Ga-Citrate and 68Ga-Chloride PET/CT Imaging of Staphylococcus aureus Osteomyelitis in the Rat Tibia

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    Petteri Lankinen

    2018-01-01

    Full Text Available There may be some differences in the in vivo behavior of 68Ga-chloride and 68Ga-citrate leading to different accumulation profiles. This study compared 68Ga-citrate and 68Ga-chloride PET/CT imaging under standardized experimental models. Methods. Diffuse Staphylococcus aureus tibial osteomyelitis and uncomplicated bone healing rat models were used (n=32. Two weeks after surgery, PET/CT imaging was performed on consecutive days using 68Ga-citrate or 68Ga-chloride, and tissue accumulation was confirmed by ex vivo analysis. In addition, peripheral quantitative computed tomography and conventional radiography were performed. Osteomyelitis was verified by microbiological analysis and specimens were also processed for histomorphometry. Results. In PET/CT imaging, the SUVmax of 68Ga-chloride and 68Ga-citrate in the osteomyelitic tibias (3.6 ± 1.4 and 4.7 ± 1.5, resp. were significantly higher (P=0.0019 and P=0.0020, resp. than in the uncomplicated bone healing (2.7 ± 0.44 and 2.5 ± 0.49, resp.. In osteomyelitic tibias, the SUVmax of 68Ga-citrate was significantly higher than the uptake of 68Ga-chloride (P=0.0017. In animals with uncomplicated bone healing, no difference in the SUVmax of 68Ga-chloride or 68Ga-citrate was seen in the operated tibias. Conclusions. This study further corroborates the use of 68Ga-citrate for PET imaging of osteomyelitis.

  7. A Constituição da Memória dos Procedimentos em Saúde no Contexto do Prontuário Eletrônico do Paciente.

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    Rosane Suely Alvares Lunardelli

    2014-02-01

    Full Text Available Introdução: Estudos realizados por diversas áreas do conhecimento em torno da memória evidenciam a importância de que se reveste esse tema para a sociedade contemporânea, extremamente fértil no que diz respeito à produção de novos conhecimentos e possíveis esquecimentos também.Objetivo: Nesse contexto, buscou-se caracterizar o prontuário eletrônico do paciente como valioso documento de constituição da memória da saúde da população.Metodologia: Apoiados em fundamentos teóricos relativos aos processos e tipos de memória foram apresentados alguns dos atributos do prontuário eletrônico do paciente, suas funções, finalidades e seu papel como um dos lugares de memória.Resultados: Inserido em categorias de memória no que diz respeito à sua abrangência, tempo de duração, mecanismos de criação e conteúdo, defende-se que o prontuário deva ser considerado, na contemporaneidade, como agente de constituição e preservação da memória procedimental.Conclusões: De acordo com o panorama apresentado, espera-se que as questões abordadas suscitem reflexões e promovam outros estudos a respeito desse documento aqui instituído como um dos mais significativos lugares de memória, de estabelecimento e preservação das ações, dos procedimentos realizados no âmbito dos cuidados em saúde. 

  8. Hemiepiphysiodesis Implants for Late-onset Tibia Vara: A Comparison of Cost, Surgical Success, and Implant Failure.

    Science.gov (United States)

    Funk, Shawn S; Mignemi, Megan E; Schoenecker, Jonathan G; Lovejoy, Steven A; Mencio, Gregory A; Martus, Jeffrey E

    2016-01-01

    The purpose of this study was to compare hemiepiphysiodesis implants for late-onset tibia vara and to evaluate patient characteristics that may predict surgical failure. This is a retrospective review of late-onset tibia vara patients treated with temporary hemiepiphysiodesis from 1998 to 2012. Mechanical axis deviation (MAD), mechanical axis angle, mechanical lateral distal femoral angle, and medial proximal tibial angle were measured on standing bone length radiographs. Surgical failure was defined as residual deformity requiring osteotomy, revision surgery, or MAD exceeding 40 mm at the time of final follow-up. Implant failure was recorded. Costs included implants and disposables required for construct placement. Staple constructs included 2 or 3 staples. Plate constructs included the plate, screws, guide wires, and drill bits. A total of 25 patients with 38 temporary lateral proximal tibia hemiepiphysiodeses met the inclusion criteria. The average body mass index (BMI) was 39.1 kg/m with an average follow-up of 3.0 years (minimum 1 y). Surgical failure occurred in 57.9% of patients. Greater BMI (P=0.05) and more severe deformity (MAD, mechanical axis angle, and medial proximal tibial angle; Pfailure. Younger age predicted higher rates of implant failure (Pfailure between staple and plate systems. Hospital costs of plate constructs ($781 to $1244) were 1.5 to 3.5 times greater than the staple constructs ($332 to $498). Greater BMI, more severe deformity, and younger age were predictive of surgical or implant failure. There was no difference in success between implant types, whereas the cost of plate constructs was 1.5 to 3.5 times greater than staples. The rate of surgical failure was high (58%) and consideration should be given to reserving hemiepiphysiodesis for patients with lower BMI and less severe deformity. In our population, if hemiepiphysiodesis was not offered to patients with BMI>35 or MAD>80 mm varus, the surgical failure rate would diminish to 28

  9. Regulação médica em emergência pela plataforma web: um estudo piloto

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    Mário Sérgio Adolfi Júnior

    2010-12-01

    Full Text Available OBJETIVO: Descrever um sistema gestor de regulação médica em emergência baseado na rede mundial de computadores. MÉTODOS: O Sistema de Regulação de Urgências e Emergências foi desenvolvido segundo modelo evolutivo de software de prototipação. A comunicação entre os usuários e o sistema foi implementada utilizando tecnologias web; o sistema foi desenvolvido em personal home page (PHP e o banco de dados, em MySQL. O protótipo foi baseado no processo de regulação médica da Divisão Regional de Saúde XIII do Estado de São Paulo e aplicado a 26 municípios dessa regional durante quatro semanas consecutivas em setembro de 2009. O sistema possibilitou a documentação das solicitações em ordem cronológica, sem permitir edição de dados já inseridos e garantindo o acesso hierarquizado e sigiloso às informações para cada participante do sistema. RESULTADOS: O sistema apresentou 100% de disponibilidade, confiabilidade e integridade da informação. Foram realizadas 1.046 solicitações ao sistema, das quais 703 (68% foram completadas. Os solicitantes apresentaram 98% de adesão ao sistema na primeira semana de aplicação, e a adesão dos prestadores de serviço foi gradativa (37% na quarta semana. Os municípios mais próximos de Ribeirão Preto que não possuem prestadores de alta complexidade foram os que mais utilizaram o sistema. CONCLUSÕES: A regulação médica de solicitações de emergência pela rede mundial de computadores mostrou-se exeqüível e confiável, possibilitando a transparência do processo e acesso direto às informações por parte dos gestores. Possibilitou a construção de indicadores para monitorizar e aprimorar o processo, na perspectiva da criação de uma regulação semi-automatizada e de avanços na organização do sistema.

  10. Elastic nailing of tibia shaft fractures in young children up to 10 years of age.

    Science.gov (United States)

    Heo, Jeong; Oh, Chang-Wug; Park, Kyeong-Hyeon; Kim, Joon-Woo; Kim, Hee-June; Lee, Jong-Chul; Park, Il-Hyung

    2016-04-01

    Although tibia shaft fractures in children usually have satisfactory results after closed reduction and casting, there are several surgical indications, including associated fractures and soft tissue injuries such as open fractures. Titanium elastic nails (TENs) are often used for pediatric tibia fractures, and have the advantage of preserving the open physis. However, complications such as delayed union or nonunion are not uncommon in older children or open fractures. In the present study, we evaluated children up to 10 years of age with closed or open tibial shaft fractures treated with elastic nailing technique. A total of 16 tibia shaft fractures treated by elastic nailing from 2001 to 2013 were reviewed. The mean patient age at operation was 7 years (range: 5-10 years). Thirteen of 16 cases were open fractures (grade I: 4, grade II: 6, grade IIIA: 3 cases); the other cases had associated fractures that necessitated operative treatments. Closed, antegrade intramedullary nailing was used to insert two nails through the proximal tibial metaphysis. All patients were followed up for at least one year after the injury. Outcomes were evaluated using modified Flynn's criteria, including union, alignment, leg length discrepancies, and complications. All fractures achieved union a mean of 16.1 weeks after surgery (range: 11-26 weeks). No patient reported knee pain or experienced any loss of knee or ankle motion. There was a case of superficial infection in a patient with grade III open fracture. Three patients reported soft tissue discomfort due to prominent TEN tips at the proximal insertion site, which required cutting the tip before union or removing the nail after union. At the last follow-up, there were no angular or rotational deformities over 10° in either the sagittal or coronal planes. With the exception of one case with an overgrowth of 15 mm, no patient showed shortening or overgrowth exceeding 10mm. Among final outcomes, 15 were excellent and 1 was

  11. Confiabilidade da análise qualitativa da ressonância magnética do encéfalo em prematuros extremos

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    Andre Dietz Furtado

    2010-12-01

    Full Text Available OBJETIVO: O objetivo deste estudo foi avaliar a confiabilidade da análise visual qualitativa dos achados de imagem de ressonância magnética (RM em recém-nascidos prematuros extremos. MATERIAIS E MÉTODOS: Uma coorte de 45 recém-nascidos de idade gestacional de 30 semanas ou menos foram inseridos neste estudo. Dois neurorradiologistas, cegos quanto aos dados clínicos, avaliaram de forma independente as RMs de crânio em relação aos seguintes achados: presença de hipersinal difuso e excessivo (DEHSI, dilatação dos ventrículos laterais, hemorragia intracraniana, áreas de sinal anormal em núcleos da base e córtex, áreas de aspecto cístico, deformidades ventriculares, dilatação do espaço subaracnóideo, leucoencefalomalácia precoce e anormalidades corticais. RESULTADOS: Quarenta e um pacientes (91,1% apresentaram exame de RM anormal. Os achados mais comuns foram DEHSI (75,6% e dilatação dos ventrículos (42,2%. A concordância interobservadores entre os dois experientes neurorradiologistas foi alta (κ > 0,60 para a maioria das alterações detectadas pela RM. O valor de kappa foi moderado (κ = 0,52 para alargamento do espaço subaracnoide e fraco (κ = 0,39 para DEHSI na substância branca. CONCLUSÃO: A avaliação qualitativa da maioria dos achados de imagem por RM de neonatos prematuros extremos foi considerada confiável, entretanto, a presença de DEHSI na substância branca demonstrou um grau de confiabilidade menor

  12. Posterior Slope of the Tibia Plateau in Malaysian Patients Undergoing Total Knee Replacement

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    R Yoga

    2009-05-01

    Full Text Available The posterior slope of the tibial plateau is an important feature to preserve during knee replacement. The correct slope aids in the amount of flexion and determines if the knee will be loose on flexion. This is a study on the posterior tibial plateau slope based on preoperative and postoperative radiographs of 100 consecutive patients who had total knee replacements. The average posterior slope of the tibia plateau was 10.1 degrees. There is a tendency for patients with higher pre-operative posterior tibial plateau slope to have higher post-operative posterior tibial plate slope.

  13. Case report 331: Small cell osteosarcoma of the tibia with diffuse metastatic disease

    International Nuclear Information System (INIS)

    Roessner, A.; Miebs, T.; Grundmann, E.; Immenkamp, M.; Hiddemann, W.; Althoff, J.

    1985-01-01

    In summary, the case is presented of a 29-year-old woman who developed a sclerosing small-cell osteosarcoma in the upper end of the tibia. The unique features in this case are reflected both in its morphology and protracted clinical course, while its histological pattern resembles in some features a small cell variant of the highly malignant osteosarcoma described by Sim and Martin. In addition to the unusual clinical course, the failure in response to chemotherapy underscores that this tumor differed in its biological behavior from other highly malignant types of osteosarcoma. The importance of DNA analysis is stressed. (orig./WU)

  14. Outcome of bone recycling using liquid nitrogen as bone reconstruction procedure in malignant and recurrent benign aggressive bone tumour of distal tibia: A report of four cases.

    Science.gov (United States)

    Gede, Eka Wiratnaya I; Ida Ayu, Arrisna Artha; Setiawan I Gn, Yudhi; Aryana Ign, Wien; I Ketut, Suyasa; I Ketut, Siki Kawiyana; Putu, Astawa

    2017-01-01

    Amputation still considered as primary choice of malignancy treatment in distal tibia. Bone recycling with liquid nitrogen for reconstruction following resection of malignant bone tumours offers many advantages. We presented four patients with osteosarcoma, Ewing sarcoma, adamantinoma and recurrent giant cell tumour over distal tibia. All of the patients underwent wide excision and bone recycling using liquid nitrogen as bone reconstruction. The mean functional Musculoskeletal Tumor Society (MSTS) score was 75% with no infection and local recurrent. The reconstruction provides good local control and functional outcome.

  15. Open Tibia Shaft Fractures and Soft-Tissue Coverage: The Effects of Management by an Orthopaedic Microsurgical Team.

    Science.gov (United States)

    VandenBerg, James; Osei, Daniel; Boyer, Martin I; Gardner, Michael J; Ricci, William M; Spraggs-Hughes, Amanda; McAndrew, Christopher M

    2017-06-01

    To compare the timing of soft-tissue (flap) coverage and occurrence of complications before and after the establishment of an integrated orthopaedic trauma/microsurgical team. Retrospective cohort study. A single level 1 trauma center. Twenty-eight subjects (13 pre- and 15 post-integration) with open tibia shaft fractures (OTA/AO 42A, 42B, and 42C) treated with flap coverage between January 2009 and March 2015. Flap coverage for open tibia shaft fractures treated before ("preintegration") and after ("postintegration") implementation of an integrated orthopaedic trauma/microsurgical team. Time from index injury to flap coverage. The unadjusted median time to coverage was 7 days (95% confidence interval, 5.9-8.1) preintegration, and 6 days (95% confidence interval, 4.6-7.4) postintegration (P = 0.48). For preintegration, 9 (69%) of the patients experienced complications, compared with 7 (47%) postintegration (P = 0.23). After formation of an integrated orthopaedic trauma/microsurgery team, we observed a 1-day decrease in median days to coverage from index injury. Complications overall were lowered in the postintegration group, although statistically insignificant. Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

  16. Use of micro-CT-based finite element analysis to accurately quantify peri-implant bone strains: a validation in rat tibiae.

    Science.gov (United States)

    Torcasio, Antonia; Zhang, Xiaolei; Van Oosterwyck, Hans; Duyck, Joke; van Lenthe, G Harry

    2012-05-01

    Although research has been addressed at investigating the effect of specific loading regimes on bone response around the implant, a precise quantitative understanding of the local mechanical response close to the implant site is still lacking. This study was aimed at validating micro-CT-based finite element (μFE) models to assess tissue strains after implant placement in a rat tibia. Small implants were inserted at the medio-proximal site of 8 rat tibiae. The limbs were subjected to axial compression loading; strain close to the implant was measured by means of strain gauges. Specimen-specific μFE models were created and analyzed. For each specimen, 4 different models were created corresponding to different representations of the bone-implant interface: bone and implant were assumed fully osseointegrated (A); a low stiffness interface zone was assumed with thickness of 40 μm (B), 80 μm (C), and 160 μm (D). In all cases, measured and computational strains correlated highly (R (2) = 0.95, 0.92, 0.93, and 0.95 in A, B, C, and D, respectively). The averaged calculated strains were 1.69, 1.34, and 1.15 times higher than the measured strains for A, B, and C, respectively, and lower than the experimental strains for D (factor = 0.91). In conclusion, we demonstrated that specimen-specific FE analyses provide accurate estimates of peri-implant bone strains in the rat tibia loading model. Further investigations of the bone-implant interface are needed to quantify implant osseointegration.

  17. O papel da FIFA Fan FestTM na copa do mundo da África do Sul

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    Fernando Borges

    2013-12-01

    Full Text Available Em 2010, pela segunda vez a FIFA promoveu o evento FIFA Fan FestTM no país que sediou a Copa do Mundo, e pela primeira vez criou uma versão internacional do evento em grandes cidades ao redor do mundo. O presente trabalho faz uma descrição das FIFA Fan FestsTM, tendo em conta a sua forma organização, a interação do público, a International Fan FestTM e formas alternativas do mesmo evento. Essa descrição é feita colocando o evento dentro do quadro teórico dos megaeventos esportivos e as transformações nas quais estão inseridos.

  18. Primary Stability of Self-Drilling and Self-Tapping Mini-Implant in Tibia of Diabetes-Induced Rabbits

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    Jea-Beom Park

    2014-01-01

    Full Text Available Objective. This study aimed to evaluate effects of type 1 diabetes mellitus and mini-implant placement method on the primary stability of mini-implants by comparing mechanical stability and microstructural/histological differences. Methods. After 4 weeks of diabetic induction, 48 mini-implants (24 self-tapping and 24 self-drilling implants were placed on the tibia of 6 diabetic and 6 normal rabbits. After 4 weeks, the rabbits were sacrificed. Insertion torque, removal torque, insertion energy, and removal energy were measured with a surgical engine on 8 rabbits. Remaining 4 rabbits were analyzed by microcomputed tomography (micro-CT and bone histomorphometry. Results. Total insertion energy was higher in self-drilling groups than self-tapping groups in both control and diabetic groups. Diabetic groups had more trabecular separation in bone marrow than the control groups in both SD and ST groups. Micro-CT analysis showed deterioration of bone quality in tibia especially in bone marrow of diabetic rabbits. However, there was no statistically significant correlation between self-drilling and self-tapping group for the remaining measurements in both control and diabetic groups. Conclusions. Type 1 diabetes mellitus and placement method of mini-implant did not affect primary stability of mini-implants.

  19. Relatório de estágio : Associação Crescer com Sentido : intervenção psicomotora nas perturbações do desenvolvimento

    OpenAIRE

    Sequeira, Ana Rafaela Ferreira

    2016-01-01

    O presente relatório procura refletir o trabalho desenvolvido no âmbito do estágio profissionalizante, inserido no Ramo de Aprofundamento de Competências Profissionais do Mestrado em Reabilitação Psicomotora, da Faculdade de Motricidade Humana. Este estágio decorreu na Associação Crescer com Sentido, em Lisboa, onde se procurou aprofundar as competências ao nível da observação, avaliação e intervenção psicomotora. Nesta instituição foi feita observação de sessões de psicomotricidade de cri...

  20. Arqueofauna Da Tradição Guarani

    OpenAIRE

    Suliano Ferrasso; Pedro Ignácio Schmitz

    2012-01-01

    O estudo trata de remanescentes faunísticos presentes em sítios arqueológicos da Tradição Guarani e dos ambientes em que os sítios estavam inseridos. Para isto foram comparadas informações publicadas sobre a arqueofauna de 13 sítios da tradição cerâmica Guarani: um de São Paulo, um de Santa Catarina, dez do Rio Grande do Sul e um da Argentina. Há expressiva quantidade de trabalhos publicados tratando principalmente do fabrico ceramista desta população, porém os estudos de vestíg...

  1. Formulação analítica de um elemento de barra para o cálculo elastoplástico de estruturas de aço porticadas planas

    OpenAIRE

    Baptista, A. M.; Muzeau, J. P.

    2007-01-01

    O presente trabalho apresenta as bases do desenvolvimento de um modelo analítico para o cálculo dos deslocamentos (rotação, flecha e deslocamento axial) numa secção transversal qualquer de uma viga de aço submetida a uma força axial constante e a um momento flector em cada uma das suas extremidades. Entre outras aplicações, este modelo permite efectuar o cálculo directo dos deslocamentos nodais no referencial local de um elemento de viga inserido numa estrutura, em regime elástico ou elastopl...

  2. SMALL CELL VARIANT OF OSTEOSARCOMA AT DIAPHYSIS OF TIBIA : A RARE CASE REPORT WITH REVIEW OF LITERATURE

    Directory of Open Access Journals (Sweden)

    Venkatalakshmi

    2015-04-01

    Full Text Available Osteosarcoma is the most common primary malignant tumor of bone involving predominantly metaphysis of the long bones. It accounts for 20% of primary bone cancers. Diaphyseal osteosarcoma is a rare form which accounts for approximately 10% of all cases of osteosarcomas. We present a case of Small cell variant of osteosarcoma in a 25 year old female presented in the diaphysis of left tibia

  3. Effects of Odanacatib on the Radius and Tibia of Postmenopausal Women

    DEFF Research Database (Denmark)

    Cheung, Am; Majumdar, S; Brixen, K

    2014-01-01

    results, odanacatib was superior to placebo with respect to increases in trabecular volumetric BMD (vBMD) and estimated compressive strength at the spine, and integral and trabecular vBMD and estimated strength at the hip. Here we report the results of HR-pQCT assessment. 214 postmenopausal women (mean.......64% and 2.66%). At the distal radius, odanacatib significantly improved trabecular thickness and BV/TV versus placebo. At a more proximal radial site, odanacatib attenuated the increase in cortical porosity seen with placebo (treatment difference= -7.7%, p = 0.066). At the distal tibia, odanacatib...... significantly improved trabecular number, separation, and BV/TV versus placebo. Safety and tolerability were similar between treatment groups. In conclusion, odanacatib increased cortical and trabecular density, cortical thickness, aspects of trabecular microarchitecture, and estimated strength at the distal...

  4. Infected nonunion of tibia

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    Milind Madhav Chaudhary

    2017-01-01

    Full Text Available Infected nonunions of tibia pose many challenges to the treating surgeon and the patient. Challenges include recalcitrant infection, complex deformities, sclerotic bone ends, large bone gaps, shortening, and joint stiffness. They are easy to diagnose and difficult to treat. The ASAMI classification helps decide treatment. The nonunion severity score proposed by Calori measures many parameters to give a prognosis. The infection severity score uses simple clinical signs to grade severity of infection. This determines number of surgeries and allows choice of hardware, either external or internal for definitive treatment. Co-morbid factors such as smoking, diabetes, nonsteroidal anti-inflammatory drug use, and hypovitaminosis D influence the choice and duration of treatment. Thorough debridement is the mainstay of treatment. Removal of all necrotic bone and soft tissue is needed. Care is exercised in shaping bone ends. Internal fixation can help achieve union if infection was mild. Severe infections need external fixation use in a second stage. Compression at nonunion site achieves union. It can be combined with a corticotomy lengthening at a distant site for equalization. Soft tissue deficit has to be covered by flaps, either local or microvascular. Bone gaps are best filled with the reliable technique of bone transport. Regenerate bone may be formed proximally, distally, or at both sites. Acute compression can fill bone gaps and may need a fibular resection. Gradual reduction of bone gap happens with bone transport, without need for fibulectomy. When bone ends dock, union may be achieved by vertical or horizontal compression. Biological stimulus from iliac crest bone grafts, bone marrow aspirate injections, and platelet concentrates hasten union. Bone graft substitutes add volume to graft and help fill defects. Addition of rh-BMP-7 may help in healing albeit at a much higher cost. Regeneration may need stimulation and augmentation. Induced

  5. Inverse Dynamics Model for the Ankle Joint with Applications in Tibia Malleolus Fracture

    Science.gov (United States)

    Budescu, E.; Merticaru, E.; Chirazi, M.

    The paper presents a biomechanical model of the ankle joint, in order to determine the force and the torque of reaction into the articulation, through inverse dynamic analysis, in various stages of the gait. Thus, knowing the acceleration of the foot and the reaction force between foot and ground during the gait, determined by experimental measurement, there was calculated, for five different positions of the foot, the joint reaction forces, on the basis of dynamic balance equations. The values numerically determined were compared with the admissible forces appearing in the technical systems of osteosynthesis of tibia malleolus fracture, in order to emphasize the motion restrictions during bone healing.

  6. QUESTÃO METROPOLITANA NA PERSPECTIVA DO DESENVOLVIMENTO SUSTENTÁVEL

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    Cynthia Ghorra-Gobin

    2010-01-01

    Full Text Available No início do século XXI, a metropolização se apresenta como temática capaz de apreender a urbanização em países inseridos na lógica da economia global. Se defi ne, de um lado, como a concentração do poder econômico em número limitado de grandes cidades em escala mundial, de outro lado, designa movimento de concentração de habitantes em amplas bacias de empregos. Esta mudança de escala da cidade não se dá sem produzir custos sociais e ambientais, dado a conduzir pesquisadores em ciências sociais a se interrogarem sobre os fundamentos de uma renovação da ação coletiva face ao desenvolvimento sustentável.

  7. Can medio-lateral baseplate position and load sharing induce asymptomatic local bone resorption of the proximal tibia? A finite element study

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    Wong Pius

    2009-07-01

    Full Text Available Abstract Background Asymptomatic local bone resorption of the tibia under the baseplate can occasionally be observed after total knee arthroplasty (TKA. Its occurrence is not well documented, and so far no explanation is available. We report the incidence of this finding in our practice, and investigate whether it can be attributed to specific mechanical factors. Methods The postoperative radiographs of 500 consecutive TKA patients were analyzed to determine the occurrence of local medial bone resorption under the baseplate. Based on these cases, a 3D FE model was developed. Cemented and cementless technique, seven positions of the baseplate and eleven load sharing conditions were considered. The average VonMises stress was evaluated in the bone-baseplate interface, and the medial and lateral periprosthetic region. Results Sixteen cases with local bone resorption were identified. In each, bone loss became apparent at 3 months post-op and did not increase after one year. None of these cases were symptomatic and infection screening was negative for all. The FE analysis demonstrated an influence of baseplate positioning, and also of load sharing, on stresses. The average stress in the medial periprosthetic region showed a non linear decrease when the prosthetic baseplate was shifted laterally. Shifting the component medially increased the stress on the medial periprosthetic region, but did not significantly unload the lateral side. The presence of a cement layer decreases the stresses. Conclusion Local bone resorption of the proximal tibia can occur after TKA and might be attributed to a stress shielding effect. This FE study shows that the medial periprosthetic region of the tibia is more sensitive than the lateral region to mediolateral positioning of the baseplate. Medial cortical support of the tibial baseplate is important for normal stress transfer to the underlying bone. The absence of medial cortical support of the tibial baseplate may lead

  8. Is intramedullary nailing superior to plating in patients with extraarticular fracture of the distal tibia?

    OpenAIRE

    Jorge Cabrolier; Marcelo Molina

    2015-01-01

    Las fracturas metafisarias de tibia distal se producen generalmente por traumatismos de alta energía, como accidentes automovilísticos, y pueden causar discapacidad severa por dolor y deformidad. En el manejo de estas fracturas existen múltiples alternativas quirúrgicas, sin embargo es incierto cuál es la mejor opción. Utilizando la base de datos Epistemonikos, la cual es mantenida mediante búsquedas en 30 bases de datos, identificamos seis revisiones sistemáticas que en conjunto incluyen tre...

  9. Participação política, formas de atuação e trajetórias sociais: um estudo sobre o militantismo em causas educacionais em Paulo Afonso-BA

    Directory of Open Access Journals (Sweden)

    Divânia Cássia Silva

    2012-12-01

    Full Text Available http://dx.doi.org/10.5007/1806-5023.2012v9n2p14 Este estudo está inserido nas discussões teóricas acerca do militantismo e do engajamento. O presente trabalho investiga as trajetórias dos militantes dirigentes dos movimentos sociais voltados para a causa da educação no município de Paulo Afonso-BA. Procurou-se apreender quais os recursos sociais acionados e reconvertidos para diferentes formas de engajamento nos espaços investigados. O capital proveniente da militância religiosa revelou-se como um recurso fundamental para as formas de atuação pesquisadas. Os recursos dos títulos escolares, bem como as redes de relação se mostram como importantes “trunfos” para os militantes estudados, não só em suas militâncias dentro de suas esferas de atuação política, mas também como mecanismos de inserção profissional. Também foram analisadas as redes de relação estabelecidas ao longo das experiências sociais, e sua utilização em favor do ingresso no meio militante e profissional. Tal investigação permitiu, ainda, relacionar este tipo de militantismo a gratificações simbólicas específicas provenientes desses espaços ocupados, como o reconhecimento identitário e redes de amizades. As transformações estruturais ocorridas no município, nas últimas décadas, também foram apontadas, aqui, como importantes fatores que influenciaram as formas de mobilização coletiva analisadas.   Palavras-Chave: trajetórias sociais, recursos sociais, militantismo e engajamento.

  10. Evaluation of <em>HER2em> Gene Amplification in Breast Cancer Using Nuclei Microarray <em>in em>S>itu em>Hybridization

    Directory of Open Access Journals (Sweden)

    Xuefeng Zhang

    2012-05-01

    Full Text Available Fluorescence<em> em>>in situ em>hybridization (FISH assay is considered the “gold standard” in evaluating <em>HER2/neu (HER2em> gene status. However, FISH detection is costly and time consuming. Thus, we established nuclei microarray with extracted intact nuclei from paraffin embedded breast cancer tissues for FISH detection. The nuclei microarray FISH (NMFISH technology serves as a useful platform for analyzing <em>HER2em> gene/chromosome 17 centromere ratio. We examined <em>HER2em> gene status in 152 cases of invasive ductal carcinomas of the breast that were resected surgically with FISH and NMFISH. <em>HER2em> gene amplification status was classified according to the guidelines of the American Society of Clinical Oncology and College of American Pathologists (ASCO/CAP. Comparison of the cut-off values for <em>HER2em>/chromosome 17 centromere copy number ratio obtained by NMFISH and FISH showed that there was almost perfect agreement between the two methods (κ coefficient 0.920. The results of the two methods were almost consistent for the evaluation of <em>HER2em> gene counts. The present study proved that NMFISH is comparable with FISH for evaluating <em>HER2em> gene status. The use of nuclei microarray technology is highly efficient, time and reagent conserving and inexpensive.

  11. Neonatal Phosphate Nutrition Alters <em>in em>Vivo> and <em>in em>Vitro> Satellite Cell Activity in Pigs

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    Chad H. Stahl

    2012-05-01

    Full Text Available Satellite cell activity is necessary for postnatal skeletal muscle growth. Severe phosphate (PO4 deficiency can alter satellite cell activity, however the role of neonatal PO4 nutrition on satellite cell biology remains obscure. Twenty-one piglets (1 day of age, 1.8 ± 0.2 kg BW were pair-fed liquid diets that were either PO4 adequate (0.9% total P, supra-adequate (1.2% total P in PO4 requirement or deficient (0.7% total P in PO4 content for 12 days. Body weight was recorded daily and blood samples collected every 6 days. At day 12, pigs were orally dosed with BrdU and 12 h later, satellite cells were isolated. Satellite cells were also cultured <em>in vitroem> for 7 days to determine if PO4 nutrition alters their ability to proceed through their myogenic lineage. Dietary PO4 deficiency resulted in reduced (<em>P> < 0.05 sera PO4 and parathyroid hormone (PTH concentrations, while supra-adequate dietary PO4 improved (<em>P> < 0.05 feed conversion efficiency as compared to the PO4 adequate group. <em>In vivoem> satellite cell proliferation was reduced (<em>P> < 0.05 among the PO4 deficient pigs, and these cells had altered <em>in vitroem> expression of markers of myogenic progression. Further work to better understand early nutritional programming of satellite cells and the potential benefits of emphasizing early PO4 nutrition for future lean growth potential is warranted.

  12. Implantation of Octacalcium Phosphate Stimulates both Chondrogenesis and Osteogenesis in the Tibia, but Only Osteogenesis in the Rat Mandible

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    F. Sargolzaei Aval

    2006-09-01

    Full Text Available Statement of problem: It is not known whether endochondral and intramembranous bones have distinct biological characteristics. Octacalcium Phosphate (OCP, a hydroxyapatite precursor, has been reported to stimulate bone formation after being implanted in parietal bone defects of rats.Purpose: The present study was designed to investigate the response of endochondral and intramembranous bones to OCP implantation and to compare their biological characteristicsMaterials and Methods: Full-thickness standardized trephine defects were made in rat tibiae and mandibles and synthetic OCP was implanted into the defects. The biologic response was examined histologically to identify bone and cartilage formation.Results: Both chondrogenesis and osteogenesis were initiated in the tibia, 1 week after implantation of OCP and most of the cartilage was replaced by bone at week 2.However, the mandible only showed osteogenesis in response to OCP implantation at week 2, and no cartilage formation was associated with the osteogenesis.Conclusions: According to the results obtained in the present study, endochondral and intramembranous bones exhibit different biological responses to OCP implantation in rats.

  13. Increased expression of matrix extracellular phosphoglycoprotein (MEPE in cortical bone of the rat tibia after mechanical loading: identification by oligonucleotide microarray.

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    Christianne M A Reijnders

    Full Text Available Skeletal integrity in humans and animals is maintained by daily mechanical loading. It has been widely accepted that osteocytes function as mechanosensors. Many biochemical signaling molecules are involved in the response of osteocytes to mechanical stimulation. The aim of this study was to identify genes involved in the translation of mechanical stimuli into bone formation. The four-point bending model was used to induce a single period of mechanical loading on the right tibia, while the contra lateral left tibia served as control. Six hours after loading, the effects of mechanical loading on gene-expression were determined with microarray analysis. Protein expression of differentially regulated genes was evaluated with immunohistochemistry. Nine genes were found to exhibit a significant differential gene expression in LOAD compared to control. MEPE, Garnl1, V2R2B, and QFG-TN1 olfactory receptor were up-regulated, and creatine kinase (muscle form, fibrinogen-B beta-polypeptide, monoamine oxidase A, troponin-C and kinesin light chain-C were down-regulated. Validation with real-time RT-PCR analysis confirmed the up-regulation of MEPE and the down-regulation of creatine kinase (muscle form and troponin-C in the loaded tibia. Immunohistochemistry showed that the increase of MEPE protein expression was already detectable six hours after mechanical loading. In conclusion, these genes probably play a role during translation of mechanical stimuli six hours after mechanical loading. The modulation of MEPE expression may indicate a connection between bone mineralization and bone formation after mechanical stimulation.

  14. A percepção profissional e comunitária sobre a reinserção social dos usuários de drogas

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    Fernando Santana de Paiva

    2014-12-01

    Full Text Available O processo de reinserção social de usuários de substâncias psicoativas tem se configurado como uma das principais estratégias da Política Nacional sobre Drogas. Haja vista que o uso de substâncias emerge como um dos principais problemas de saúde pública na atualidade, o presente artigo teve como objetivo compreender as percepções dos atores sociais inseridos nas políticas da saúde, assistência social e lideranças comunitárias acerca do processo de reinserção social dos usuários de drogas. Trata-se de uma pesquisa de cunho qualitativo, onde foram realizadas doze entrevistas semiestruturadas com diferentes informantes-chave, inseridos em um território com elevados indicadores de uso de drogas. Os resultados apontam para os desafios no processo de inserção efetiva dos usuários de drogas em razão da existência de uma rede assistencial multissetorial, um profundo processo de estigmatização social, a naturalização do uso de drogas, a responsabilização da família, além da sobrecarga de trabalho nas políticas públicas.

  15. Study of Ender’s Nailing in Lower Fourth Fractures of Tibia in Adults

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    H. Ladani

    2015-06-01

    Full Text Available ABSTRACT Background: Ender’s nailing in lower fourth tibia fracture preserves periosteal and endosteal blood supply & fracture haematoma, which increases chances of fracture union. There is minimal risk of infection. It provides dynamically controlled motion. Stacking of the canal & splaying of nails provides reasonable axial & rotational stability. Methodology: This is a study of 20 patients of lower fourth extra-articular closed tibial fractures treated with Ender’s nailing. Age was ranging from 20 to 62 yrs. 14 males & 6 female patients were there. Fracture was transverse in 5 patients, short spiral in 5 patients, and oblique in 8 patients & comminuted in 2 patients. Fibula was intact in 5 patients, was fractured at middle or upper third region in 7 patients and at lower third region in 8 patients 3.5 Ender’s nails were used in all patients, four nails in 16 patients& three nails in 4 patients Average surgery time was 50 minutes, average blood loss was 35 cc. No patients had post-operative wound infection. All patients were immobilized for various time periods. Results: Average union time was 16 wks. There were 3 delayed unions. Eventually all fractures united without 2nd surgical intervention. In 5 patients there was significant proximal migration of nails, causing slight knee discomfort. Nails were removed after solid fracture union in those cases. Between 1 & 2 cm shortening was found in two patients more than 50 varus-valgus or antecurvatum-recurvatum deformity was found in two patients, but not having any symptomatic problem. Conclusion: Ender’s nailing is a good alternative in lower fourth tibia fractures. It gives increased chances of fracture union with minimal risk of infection. 2nd surgery of bone grafting or dynamization of I/L nails is not required. The implants are inexpensive & procedure is simple. But a brief period of post-operative immobilization is required.

  16. Tibia shaft fractures: costly burden of nonunions

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    Antonova Evgeniya

    2013-01-01

    Full Text Available Abstract Background Tibia shaft fractures (TSF are common for men and women and cause substantial morbidity, healthcare use, and costs. The impact of nonunions on healthcare use and costs is poorly described. Our goal was to investigate patient characteristics and healthcare use and costs associated with TSF in patients with and without nonunion. Methods We retrospectively analyzed medical claims in large U.S. managed care claims databases (Thomson Reuters MarketScan®, 16 million lives. We studied patients ≥ 18 years old with a TSF diagnosis (ICD-9 codes: 823.20, 823.22, 823.30, 823.32 in 2006 with continuous pharmaceutical and medical benefit enrollment 1 year prior and 2 years post-fracture. Nonunion was defined by ICD-9 code 733.82 (after the TSF date. Results Among the 853 patients with TSF, 99 (12% had nonunion. Patients with nonunion had more comorbidities (30 vs. 21, pre-fracture and were more likely to have their TSF open (87% vs. 70% than those without nonunion. Patients with nonunion were more likely to have additional fractures during the 2-year follow-up (of lower limb [88.9% vs. 69.5%, P  Conclusions Nonunions in TSF’s are associated with substantial healthcare resource use, common use of strong opioids, and high per-patient costs. Open fractures are associated with higher likelihood of nonunion than closed ones. Effective screening of nonunion risk may decrease this morbidity and subsequent healthcare resource use and costs.

  17. Bilateral atypical insufficiency fractures of the proximal tibia and a unilateral distal femoral fracture associated with long-term intravenous bisphosphonate therapy: a case report

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    Imbuldeniya Arjuna

    2012-02-01

    Full Text Available Abstract Introduction Atypical insufficiency fractures of the femur in patients on long-term bisphosphonate therapy have been well described in recent literature. The majority of cases are associated with minimal or no trauma and occur in the subtrochanteric or diaphyseal region. Case presentation We describe the case of a 76-year-old British Caucasian woman who presented initially to an emergency department and then to her primary care physician with a long-standing history of bilateral knee pain after minor trauma. Plain radiographs showed subtle linear areas of sclerosis bilaterally in her proximal tibiae. Magnetic resonance imaging confirmed the presence of insufficiency fractures in these areas along with her left distal femur. There are very few reports of atypical insufficiency fractures involving the tibia in patients on long-term bisphosphonate therapy and this appears to be the only documented bilateral case involving the metaphyseal regions of the proximal tibia and distal femur. Conclusion In addition to existing literature describing atypical fractures in the proximal femur and femoral shaft, there is a need for increased awareness that these fractures can also occur in other weight-bearing areas of the skeleton. All clinicians involved in the care of patients taking long-term bisphosphonates need to be aware of the growing association between new onset lower limb pain and atypical insufficiency fractures.

  18. Radiographic Bone Density around Dental Implants with Surface Modification by Laser Ablation followed by Hydroxyapatite Coating: A Study in Rabbit Tibiae

    DEFF Research Database (Denmark)

    Cazelato, Tiago; Spin-Neto, Rubens; Morais, J

    followed by hydroxyapatite coating with a surface that was oxide-blasted followed by acid etching. On this study twenty-four rabbits received two implants in each tibia, an oxide-blasted + acid-etched (ATS) and a hydroxyapatite-coated (HAP) implant. Radiographs of the implants were recorded after 4, 8...

  19. A realidade aumentada em smartphones na exploração de informações estatísicas e cartográficas

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    Fabiana Silva Pinto

    Full Text Available A Realidade Aumentada é uma nova forma de interação homem-máquina, que permite aos usuários examinar a realidade mediante a visualização/inclusão de informação adicional, previamente selecionada, relevante para a solução de um determinado problema, em tempo real junto com a realidade percebida pelo ser humano. Basicamente, uma camera de vídeo proporciona cenas em tempo real e um sistema de computador adiciona à imagem real a informação virtual, como por exemplo a inserção de nomes de elementos geográficos como rios e montanhas os quais não são visíveis a olho nú e podem ser inseridos como informação virtual sobre à imagem real. O objetivo deste trabalho é explorar o uso da realidade aumentada em smartphones na visualização e representação de dados do Censo e Banco de Nomes Geográficos do Brasil, logo informações estatísticas e cartográficas respectivamente, ambos disponibilizados pelo Instituto Brasileiro de Geografia e Estatística - IBGE, bem como validar a representação dos dados através do uso de diferentes variáveis visuais. Para alcançar o objetivo proposto um módulo de realidade aumentada para smartphone foi desenvolvido, o qual utiliza diferentes variáveis visuais para a representação dos dados. A presente pesquisa visa permitir aos estudantes, técnicos e usuários de cartográfia a obter, explorar, solucionar problemas, facilitar a compreensão e interpretação de informações cartográficas e estatísticas em tempo real através de uma nova forma de visualização: a realidade aumentada.

  20. Fracture of the medial intercondylar eminence of the tibia in horses treated by arthroscopic fragment removal (21 horses)

    OpenAIRE

    Rubio‐Martínez, L. M.; Redding, W. R.; Bladon, B.; Wilderjans, H.; Payne, R. J.; Tessier, C.; Geffroy, O.; Parker, R.; Bell, C.; Collingwood, F. A.

    2017-01-01

    Summary Background Fractures of the medial intercondylar eminence of the tibia (MICET) are scarcely reported in horses. Objectives To report the clinical and diagnostic findings, surgical treatment and outcome in a series of horses presented with MICET fracture and treated with arthroscopic fragment removal. Study design Multicentre retrospective case series. Methods Case records of horses diagnosed with MICET fractures that had undergone surgical treatment were reviewed. Follow‐up informatio...

  1. Ocorrencia de mercurio na Bacia do Rio Iguaçu, Estado do Parana, Brasil

    OpenAIRE

    Rafael Andre Belotto Plawiak

    2007-01-01

    Resumo: A anomalia geoquímica de mercúrio em sedimento de corrente da bacia hidrográfica do rio Iguaçu, Estado do Paraná, delimitada por um levantamento prévio de geoquímica regional, foi investigada através de determinações das concentrações do metal em rochas, solo e sedimento fluvial. O rio Iguaçu está inserido no contexto geológico da Bacia do Paraná e a porção correspondente ao alto vale, no município de Curitiba e vizinhanças, compreende rochas gnáissico-migmatíticas do embasamento cris...

  2. Nanociência e nanotecnologia nos ensinos básico (3º ciclo) e secundário

    OpenAIRE

    Campos, Ana Luísa Carvalho de

    2013-01-01

    Dissertação de mestrado em Ciências – Formação Contínua de Professores (área de especialização em Física e Química) A temática da educação científica e tecnológica tem sido gradualmente introduzida nos diferentes níveis de ensino com o intuito de formar cidadãos capazes de compreender o mundo no qual estão inseridos. Neste âmbito procurou-se desenvolver o tema «nanociência e nanotecnologia», dado se tratar de um conceito atual e interdisciplinar, englobando desde as ciências exata...

  3. Intervenção Psicológica numa Equipa de Natação

    OpenAIRE

    Sousa, Carlos

    2014-01-01

    Relatório de Estágio apresentado para a obtenção do grau de Mestre em Psicologia do Desporto e do Exercício Orientador: Drª Anabela Vitorino. Coorientador: Doutor Luís Cid O relatório de estágio inserido no 2º ano do Mestrado em Psicologia do Desporto e do Exercício, da Escola Superior de Desporto, do Instituto Politécnico de Santarém, pretende apresentar o trabalho desenvolvido entre o mês de Setembro e Junho de 2013, nas equipas de natação, dos escalões sénior, júnior e juven...

  4. Comparing case-control study for treatment of proximal tibia fractures with a complete metaphyseal component in two centers with different distinct strategies

    DEFF Research Database (Denmark)

    Berven, Haakon; Brix, Michael; Izadpanah, Kaywan

    2018-01-01

    BACKGROUND: The purpose of this study was to compare two methods of stabilization for proximal tibia fractures (AO 41) with a complete metaphyseal component, external fixation with the Ilizarov wire frame, and internal fixation with locking plates. METHODS: Patients from two level 1 trauma centers...

  5. Aptidão cardiorrespiratória de uma amostra regional brasileira distribuída em diferentes tabelas

    Directory of Open Access Journals (Sweden)

    Karlyse Claudino Belli

    2012-09-01

    Full Text Available FUNDAMENTO: A maioria das tabelas de classificação da Aptidão Cardiorrespiratória (ACR utilizadas na prática clínica é internacional e não foi validada para a população brasileira, podendo resultar em discrepâncias importantes, uma vez que essa classificação é extrapolada para a nossa população. Objetivo: Avaliar as principais tabelas de ACR disponíveis em uma amostra populacional brasileira do Planalto Médio do Rio Grande do Sul (RS. MÉTODOS: Foram analisados dados retrospectivos de 2.930 indivíduos, residentes em 36 cidades do Planalto Central do RS. Levaram-se em consideração presença dos fatores de risco para doença cardiovascular e valores estimados do consumo de oxigênio de pico (VO2pico, obtidos por meio de teste de esforço com protocolo de Bruce. Para classificar a ACR, os sujeitos foram distribuídos de acordo com o sexo e inseridos nas respectivas faixas etárias das tabelas de Cooper, American Heart Association (AHA e da Universidade Federal de São Paulo (Unifesp, e classificados conforme seu VO2pico. RESULTADOS: A amostra feminina apresentou valores mais baixos de VO2pico do que a masculina (23,5 ± 8,5 vs. 31,7 ± 10,8 mL.kg-1.min-1, p < 0,001, e o VO2pico apresentou correlação inversa e moderada com a idade considerando-se ambos os sexos (R = -0,48, p < 0,001. Foi observada importante discrepância entre os níveis de classificação da ACR entre as tabelas, que variaram de 49% (COOPERxAHA até 75% (UNIFESPxAHA. CONCLUSÃO: Nossos achados indicam discrepâncias importantes na classificação da ACR proveniente das tabelas avaliadas. Estudos futuros poderiam investigar se a utilização das tabelas internacionais são aplicáveis à população brasileira e às populações de diferentes regiões do Brasil.

  6. Reference Gene Selection in the Desert Plant <em>Eremosparton songoricuem>m>

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    Dao-Yuan Zhang

    2012-06-01

    Full Text Available <em>Eremosparton songoricum em>(Litv. Vass. (<em>E. songoricumem> is a rare and extremely drought-tolerant desert plant that holds promise as a model organism for the identification of genes associated with water deficit stress. Here, we cloned and evaluated the expression of eight candidate reference genes using quantitative real-time reverse transcriptase polymerase chain reactions. The expression of these candidate reference genes was analyzed in a diverse set of 20 samples including various <em>E. songoricumem> plant tissues exposed to multiple environmental stresses. GeNorm analysis indicated that expression stability varied between the reference genes in the different experimental conditions, but the two most stable reference genes were sufficient for normalization in most conditions.<em> EsEFem> and <em>Esα-TUB> were sufficient for various stress conditions, <em>EsEF> and <em>EsACT> were suitable for samples of differing germination stages, and <em>EsGAPDH>and <em>Es>UBQ em>were most stable across multiple adult tissue samples. The <em>Es18Sem> gene was unsuitable as a reference gene in our analysis. In addition, the expression level of the drought-stress related transcription factor <em>EsDREB2em>> em>verified the utility of<em> E. songoricumem> reference genes and indicated that no single gene was adequate for normalization on its own. This is the first systematic report on the selection of reference genes in <em>E. songoricumem>, and these data will facilitate future work on gene expression in this species.

  7. Redes Sociais e Juventude Rural: apropriações de propostas de Comunicação para o desenvolvimento em redes globalizadas

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    Nataly de Queiroz Lima

    Full Text Available Este artigo objetiva analisar as apropriações das propostas da Rede de Crianças e Adolescentes Comunicadores de Língua Portuguesa pelos jovens de Nova Olinda, no sertão do Ceará. Especificamente, o que se quer compreender é como os jovens de contexto popular, submetidos à condição contingente de acesso a bens materiais e simbólicos, se apropriam de uma proposta que defende o desenvolvimento local via estratégias de Comunicação acordadas em uma rede social global. A pesquisa combina as teorias dos estudos culturais latino-americanos e dos estudos das redes sociais, via Manuel Castells, Scherer-Warren, Néstor García Canclini, Maria Salett Tauk Santos e Jesus Martin-Barbero. Trata-se de um estudo de caso que utiliza técnicas combinadas de coleta de dados. A pesquisa demonstra que os jovens rurais estão inseridos nas dinâmicas das redes sociais, mas as mediações tecnológicas não são redentoras para a formação de coletivos internacionais.

  8. Efeitos do ultra-som terapêutico sobre o crescimento longitudinal do fêmur e da tíbia em ratos Effects of therapeutic ultrasound on longitudinal growth of the femur and tibia in rats

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    Alfredo Alcantara Barreto

    2011-01-01

    Full Text Available OBJETIVO: Estudar efeitos do ultra-som terapêutico sobre o crescimento do fêmur e da tíbia, em ratos jovens. MÉTODO: Ratus norvegicus com quatro semanas de vida, machos, totalizando 115 animais, divididos em quatro grupos, foram submetidos ao ultra-som terapêutico (0,8 MHz, cabeçote fixo, pulso contínuo, por dez minutos, durante dez dias, na face medial do joelho direito, nas potências de 0,0 W/cm2 (grupo controle, 0,5 W/cm2 (grupo G2, 1,0 W/cm2 (grupo G3, e 1,5 W/cm2 (grupo G4. Lâminas histológicas da epífise, placa de crescimento e metáfise e as medidas dos comprimentos do fêmur e da tíbia foram estudadas na sexta, décima terceira e vigésima sexta semanas de vida. Os dados foram submetidos à análise de variância - fatorial inteiramente aleatorizado. RESULTADO: Nenhuma alteração estatística do crescimento ósseo foi estabelecida entre quaisquer dos três grupos tratados e o grupo controle. Entretanto, alterações sugestivas de diminuição do crescimento do fêmur e da tíbia de G4 em relação a G2 e G3, foram evidenciadas. No grupo G4 alterações histopatológicas como necroses celulares e neoformação óssea, pós-necrose, foram encontradas. CONCLUSÃO: Quando comparados os grupos tratados com o grupo controle, não há evidência estatística de estímulo ou inibição ao crescimento ósseo pela aplicação do ultra-som terapêutico. Nível de Evidência: Nível II, estudo coorte transversal.OBJECTIVES: To determine the effects of ultrasound therapy on the femur and tibia growth in young rats. METHOD: Four-week-old male Ratus Norvegicus totaling 115 animals, divided into four groups, were submitted to ultrasound therapy (0.8 MHz, fixed tube head, continuous pulse, for 10 minutes, once a day, ten times on the medial face of the right knee, with powers of 0.0 W/cm2 (group G1, 0.5 W/cm2 (group G2, 1.0 W/cm2 (group G3, and 1.5 W/cm2 (group G4. Histological slides of the epiphysis, growth plate and metaphysis and the

  9. OUTCOME OF LOCKING PLATES IN DISTAL TIBIA FRACTURES TREATMENT

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    Lokesh

    2016-05-01

    Full Text Available INTRODUCTION Most of these fractures except intra-articular fractures are treated with interlocking nail. 1,2 These nails are a boon for these fractures. But as the fracture nears to the joint stability the fracture fixation will be compromised due to malreduction and alignment, it leads to increased chances of delayed and nonunion. 3 Locking anatomical plates are evaluated for anatomical and relative stability fixation. Since then most intra and near intra-articular fractures are fixed with these plates with minimally invasive percutaneous plate osteosynthesis method, these plates have given excellent result 4 . But again these plates have some disadvantages 5 . This study is done to see the outcome of locking plates in distal tibia fracture. METHODS This study is done in the Department of Orthopaedics, Bangalore Medical College, Bangalore. This study is done from 2013 to 2015. 30 patients who came to outpatient department were treated with locking plates. All patients above 16 years having distal third tibia fracture are included. All open fractures except type 1 and elderly above 60 years and pathological fractures are excluded in our study. All patients were followed up for initial 5 months, thereafter, once in 3 months, for clinical and radiological evaluation of union status, knee range of motion, ankle range of motion and other complications. Assessment of the patient with functional recovery was done with American Orthopaedic Foot and Ankle Surgery(AOFAS 6 minimum 5 months after injury. RESULTS Majority of the patients are from age group 18-29 years (50%. Average age group was 30 years. Majority of the patients were males 80.6% (25. All fractures were closed fractures except 2 cases which are type 1. There were 12 cases of AO type A, 8 patients were AO type B and 10 patients were type C. Majority of the patients had fracture due to road traffic accidents, 74%. All fractures were united by the end of 20 weeks. There was delayed union in

  10. Fracturas de tibia, tratamiento con CIMB no fresados

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    Roberto Del Gordo D´Amato

    2013-10-01

    Full Text Available Se realizó un estudio descriptivo tipo serie de casos en el cual se analizan diversos aspectos inherentes al tratamiento quirúrgico de 92 fracturas de tibia diafisiarias cerradas y abiertas tipo I y II de Gustillo, tratadas con Clavos Intramedulares Bloqueados No Fresados (CIMBNF de las 125 atendidas servicio de ortopedia y traumatología de la Clínica El Prado de la Ciudad de Santa Marta D.T.C.H., entre diciembre del 2005 y diciembre del 2007. Se excluyeron de este estudio 33 casos en los cuales por diversas causas se realizó otro tipo de tratamiento fuera ortopédico o quirúrgico mediante colocación de fijadores externos. Utilizamos la clasificación del AO en la cual a este tipo de lesiones corresponde el número 42. Encontramos una alta incidencia en accidentes de transito como factor productor de este tipo de lesión y dentro de ellos la motocicleta como vehículo mas frecuente. Fueron evaluados 86 de los 92 pacientes que corresponde al 93.5% y dentro de ellos se presentaron complicaciones mayores en el 4.6%, cabe mencionar Infecciones post operatorias y deformidades a nivel proximal y distal por diversas causas, las cuales fueron corregidas con procedimientos ulteriores. (Duazary 2008; 1: 4 - 8

  11. A comparison of in vitro friction forces among conventional and self-ligating aesthetic orthodontic brackets

    OpenAIRE

    Leal, Rodrigo Severo

    2009-01-01

    O objetivo do presente estudo consistiu em comparar in vitro o atrito produzido por braquetes estéticos, convencionais e autoligados quando inseridos fios retangulares de aço inoxidável de diferentes dimensões, nas angulações de zero e três graus entre os braquetes. Foram utilizados 120 braquetes de 6 marcas comerciais (Gemini, Clarity convencional, Transcend, Inspire, Clarity autoligado, Damon autoligado), sendo 20 braquetes de cada marca comercial. Para os ensaios laboratoriais, foram colad...

  12. Dosimetry during intramedullary nailing of the tibia.

    Science.gov (United States)

    Kirousis, George; Delis, Harry; Megas, Panagiotis; Lambiris, Elias; Panayiotakis, George

    2009-10-01

    Intramedullary nailing under fluoroscopic guidance is a common operation. We studied the intraoperative radiation dose received by both the patient and the personnel. 25 intramedullary nailing procedures of the tibia were studied. All patients suffered from tibial fractures and were treated using the Grosse-Kempf intramedullary nail, with free-hand technique for fixation of the distal screws, under fluoroscopic guidance. The exposure, at selected positions, was recorded using an ion chamber, while the dose area product (DAP) was measured with a DAP meter, attached to the tube head. Thermoluminescent dosimeters (TLDs) were used to derive the occupational dose to the personnel, and also to monitor the surface dose on the gonads of some of the patients. The mean operation time was 101 (48-240) min, with a mean fluoroscopic time of 72 seconds and a mean DAP value of 75 cGy x cm(2). The surface dose to the gonads of the patients was less than 8.8 mGy during any procedure, and thus cannot be considered to be a contraindication for the use of this technique. Occupational dose differed substantially between members of the operating personnel, the maximum dose recorded being to the operator of the fluoroscopic equipment (0.11 mSv). Our findings underscore the care required by the primary operator not to exceed the dose constraint of 10 mSv per year. The rest of the operating personnel, although they do not receive very high doses, should focus on the dose optimization of the technique.

  13. Anterior versus posterior approach in reconstruction of infected nonunion of the tibia using the vascularized fibular graft: potentialities and limitations.

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    Amr, Sherif M; El-Mofty, Aly O; Amin, Sherif N

    2002-01-01

    The potentialities, limitations, and technical pitfalls of the vascularized fibular grafting in infected nonunions of the tibia are outlined on the basis of 14 patients approached anteriorly or posteriorly. An infected nonunion of the tibia together with a large exposed area over the shin of the tibia is better approached anteriorly. The anastomosis is placed in an end-to-end or end-to-side fashion onto the anterior tibial vessels. To locate the site of the nonunion, the tibialis anterior muscle should be retracted laterally and the proximal and distal ends of the site of the nonunion debrided up to healthy bleeding bone. All the scarred skin over the anterior tibia should be excised, because it becomes devitalized as a result of the exposure. To cover the exposed area, the fibula has to be harvested with a large skin paddle, incorporating the first septocutaneous branch originating from the peroneal vessels before they gain the upper end of the flexor hallucis longus muscle. A disadvantage of harvesting the free fibula together with a skin paddle is that its pedicle is short. The skin paddle lies at the antimesenteric border of the graft, the site of incising and stripping the periosteum. In addition, it has to be sutured to the skin at the recipient site, so the soft tissues (together with the peroneal vessels), cannot be stripped off the graft to prolong its pedicle. Vein grafts should be resorted to, if the pedicle does not reach a healthy segment of the anterior tibial vessels. Defects with limited exposed areas of skin, especially in questionable patency of the vessels of the leg, require primarily a fibula with a long pedicle that could easily reach the popliteal vessels and are thus better approached posteriorly. In this approach, the site of the nonunion is exposed medial to the flexor digitorum muscle and the proximal and distal ends of the site of the nonunion debrided up to healthy bleeding bone. No attempt should be made to strip the scarred skin off

  14. Plasma rico em plaquetas para reparação de falhas ósseas em cães Platelet-rich plasma for canine bone restoration

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    Anna Laeticia Trindade Barbosa

    2008-08-01

    Full Text Available As plaquetas chegam rapidamente ao local da ferida e liberam múltiplos fatores de crescimento (FC e citocinas que contribuem para a reparação óssea e aumentam a vascularização local. O Plasma Rico em Plaquetas (PRP concentra as plaquetas e os FC liberados por elas, aceleram a formação óssea e melhora a qualidade do trabeculado. Este trabalho apresenta um protocolo para confecção de PRP e demonstra alguns aspectos da sua utilização na reparação óssea de cães. O protocolo foi desenvolvido a partir de sangue coletado por punção jugular em três cães adultos, pesando em média 20kg. Para avaliação da aplicação clínica e dos aspectos da reparação óssea, foram criadas duas falhas mediais no terço proximal de cada tíbia. Assim, a falha 1 não foi preenchida, constituindo o controle, a falha 2 foi preenchida com 3mg de enxerto ósseo autógeno da crista da tíbia, a falha 3 com gel de plaquetas (PRP e falha a número 4 com a associação PRP e 3mg de enxerto ósseo autógeno. O protocolo laboratorial proposto mostrou-se de fácil execução e de baixo custo e possibilitou a concentração adequada de plaquetas no PRP final, cujo número foi dependente da contagem inicial no sangue total de cada animal. A comparação da radiopacidade na região da falha, em todos os tratamentos, e ao longo do tempo demonstrou que o PRP associado ao enxerto determinou maior precocidade e uniformidade de radiopacidade, quando comparado à falha preenchida pelo PRP e ao enxerto usados isoladamente, e sendo que ambos determinam melhores resultados de preenchimento que a falha mantida sem tratamento.The platelets arrive quickly at the injury site and release several growth factors (GF and citokines that contribute to bone repair and increasing local vascularization. The Platelet-rich Plasma (PRP concentrates the platelets and their growth factors, increasing the rate of bone formation and better quality of trabecular bone. This research presents

  15. A specimen of <em>Sorex> cfr. <em>samniticus> in Barn Owl's pellets from Murge plateau (Apulia, Italy / Su di un <em>Sorex> cfr. <em>samniticus> (Insectivora, Soricidae rinvenuto in borre di <em>Tyto albaem> delle Murge (Puglia, Italia

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    Giovanni Ferrara

    1992-07-01

    Full Text Available Abstract In a lot of Barn Owl's pellets from the Murge plateau a specimen of <em>Sorex> sp. was detected. Thank to some morphological and morphometrical features, the cranial bones can be tentatively attributed to <em>Sorex samniticusem> Altobello, 1926. The genus <em>Sorex> was not yet included in the Apulia's fauna southwards of the Gargano district; the origin and significance of the above record is briefly discussed, the actual presence of a natural population of <em>Sorex> in the Murge being not yet proved. Riassunto Viene segnalato il rinvenimento di un esemplare di <em>Sorex> cfr. <em>samniticus> da borre di <em>Tyto albaem> delle Murge. Poiché il genere non era stato ancora segnalato nella Puglia a sud del Gargano, viene discusso il significato faunistico del reperto.

  16. Efecto de extractos vegetales de <em>Polygonum hydropiperoidesem>, <em>Solanum nigrumem> y <em>Calliandra pittieriem> sobre el gusano cogollero (<em>Spodoptera frugiperdaem>

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    Lizarazo H. Karol

    2008-12-01

    Full Text Available

    El gusano cogollero <em>Spodoptera frugiperdaem> es una de las plagas que más afectan los cultivos en la región de Sumapaz (Cundinamarca, Colombia. En la actualidad se controla principalmente aplicando productos de síntesis química, sin embargo la aplicación de extractos vegetales surge como una alternativa de menor impacto sobre el ambiente. Este control se emplea debido a que las plantas contienen metabolitos secundarios que pueden inhibir el desarrollo de los insectos. Por tal motivo, la presente investigación evaluó el efecto insecticida y antialimentario de extractos vegetales de barbasco <em>Polygonum hydropiperoidesem> (Polygonaceae, carbonero <em>Calliandra pittieriem> (Mimosaceae y hierba mora <em>Solanum nigrumem> (Solanaceae sobre larvas de <em>S. frugiperdaem> biotipo maíz. Se estableció una cría masiva del insecto en el laboratorio utilizando una dieta natural con hojas de maíz. Posteriormente se obtuvieron extractos vegetales utilizando solventes de alta polaridad (agua y etanol y media polaridad (diclorometano los cuales se aplicaron sobre las larvas de segundo instar. Los resultados más destacados se presentaron con extractos de <em>P. hydropiperoidesem>, obtenidos con diclorometano en sus diferentes dosis, con los cuales se alcanzó una mortalidad de 100% 12 días después de la aplicación y un efecto antialimentario representado por un consumo de follaje de maíz inferior al 4%, efectos similares a los del testigo comercial (Clorpiriphos.

  17. O pensamento crítico na proposta historiográfica de Ibn Khaldun (1332-1406: o caso da Surat da aurora

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    Elaine Cristina Senko

    2012-05-01

    Full Text Available Inserido no campo das discussões sobre a teoria da historiografia medieval, o presente estudo tem por base uma análise do pensamento crítico defendido pelo erudito muçulmano Ibn Khaldun (1332-1406, em sua obra Muqaddimah, no que se refere ao trabalho do historiador em sua investigação do passado. Propomos, assim, averiguar o pensamento historiográfico de Khaldun, avaliando um possível resgate aos clássicos gregos e sua proposta metodológica, através de um caso específico em seu trabalho: o momento no qual o autor reflete sobre uma passagem do livro sagrado Alcorão, a Surat da Aurora, a qual, segundo ele, estava sendo mal interpretada por historiadores e comentadores da época.

  18. Appendicular and whole body lean mass outcomes are associated with finite element analysis-derived bone strength at the distal radius and tibia in adults aged 40years and older.

    Science.gov (United States)

    Gibbs, Jenna C; Giangregorio, Lora M; Wong, Andy K O; Josse, Robert G; Cheung, Angela M

    2017-10-01

    The purpose of this cross-sectional study was to determine how appendicular lean mass index (ALMI), and whole body lean (LMI) and fat mass indices (FMI) associate with estimated bone strength outcomes at the distal radius and tibia in adults aged 40 years and older. Dual energy X-ray absorptiometry (DXA) scans were performed to determine body composition, including whole body lean and fat mass, and appendicular lean mass. ALMI (appendicular lean mass/height 2 ), LMI (lean tissue mass/height 2 ) and FMI (fat mass/height 2 ) were calculated. High-resolution peripheral quantitative computed tomography (HRpQCT) scans were performed to assess bone structural properties at the distal radius and tibia. Using finite element analysis, failure load (N), stiffness (N/mm), ultimate stress (MPa), and cortical-to-trabecular load ratio were estimated from HRpQCT scans. The associations between body composition (ALMI, LMI, FMI) and estimated bone strength were examined using bivariate and multivariable linear regression analyses adjusting for age, sex, and other confounding variables. In 197 participants (127 women; mean±SD, age: 69.5±10.3y, body mass index: 27.95±4.95kg/m 2 , ALMI: 7.31±1.31kg/m 2 ), ALMI and LMI were significantly associated with failure load at the distal radius and tibia (explained 39%-48% of the variance) and remained significant after adjusting for confounding variables and multiple testing (R 2 =0.586-0.645, p<0.001). ALMI, LMI, and FMI did not have significant associations with ultimate stress in our multivariable models. FMI was significantly associated with cortical-to-trabecular load ratio at the distal radius and tibia (explained 6%-12% of the variance) and remained significant after adjusting for confounders and multiple testing (R 2 =0.208-0.243, p<0.001). FMI was no longer significantly associated with failure load after adjusting for confounders. These findings suggest that ALMI and LMI are important determinants of estimated bone strength

  19. Rapid Development of Microsatellite Markers with 454 Pyrosequencing in a Vulnerable Fish<em>,> the Mottled Skate<em>, Raja em>pulchra>

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    Jung-Ha Kang

    2012-06-01

    Full Text Available The mottled skate, <em>Raja pulchraem>, is an economically valuable fish. However, due to a severe population decline, it is listed as a vulnerable species by the International Union for Conservation of Nature. To analyze its genetic structure and diversity, microsatellite markers were developed using 454 pyrosequencing. A total of 17,033 reads containing dinucleotide microsatellite repeat units (mean, 487 base pairs were identified from 453,549 reads. Among 32 loci containing more than nine repeat units, 20 primer sets (62% produced strong PCR products, of which 14 were polymorphic. In an analysis of 60 individuals from two <em>R. pulchra em>populations, the number of alleles per locus ranged from 1–10, and the mean allelic richness was 4.7. No linkage disequilibrium was found between any pair of loci, indicating that the markers were independent. The Hardy–Weinberg equilibrium test showed significant deviation in two of the 28 single-loci after sequential Bonferroni’s correction. Using 11 primer sets, cross-species amplification was demonstrated in nine related species from four families within two classes. Among the 11 loci amplified from three other <em>Rajidae> family species; three loci were polymorphic. A monomorphic locus was amplified in all three <em>Rajidae> family species and the <em>Dasyatidae> family. Two <em>Rajidae> polymorphic loci amplified monomorphic target DNAs in four species belonging to the Carcharhiniformes class, and another was polymorphic in two Carcharhiniformes species.

  20. O HIPERTEXTO E A NÃO LINEARIDADE TEXTUAL COMO AGENTE FACILITADOR DA APRENDIZAGEM

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    Angélica Ilha Gonçalves

    2012-07-01

    Full Text Available No cenário moderno, com a incorporação das tecnologias da Internet à educação, o hipertexto apresenta-se como um recurso de significativa importância no desenvolvimento da aprendizagem. Considerando esta perspectiva, o presente trabalho tem por objetivo discorrer sobre o modo como este recurso atua como um agente facilitador da busca pelo saber. Por hipertexto, entende-se uma “forma dinâmica e flexível de linguagem que dialoga com outras interfaces semióticas, adiciona e condiciona à sua superfície formas outras de textualidade” (XAVIER, 2010, p. 208. Sendo assim, um hipertexto é um texto inserido num apoio virtual que possibilita a leitura de outros textos a partir dele. Em outras palavras, é um “texto dentro de outro texto”. Dessa forma, o hipertexto possibilita ao leitor o dinamismo de estar inserido em várias discussões acerca do seu tema de estudo, proporcionando uma interação diferenciada entre aluno e texto, o que pode tornar a aprendizagem mais acessível e fácil. Por outro lado, do leitor que utiliza o hipertexto como fonte de leitura é exigido um esforço no tangente a atos inferenciais, devido a sua não linearidade, sendo necessário que o participante seja mais ativo nesse processo.

  1. Creep of trabecular bone from the human proximal tibia.

    Science.gov (United States)

    Novitskaya, Ekaterina; Zin, Carolyn; Chang, Neil; Cory, Esther; Chen, Peter; D'Lima, Darryl; Sah, Robert L; McKittrick, Joanna

    2014-07-01

    Creep is the deformation that occurs under a prolonged, sustained load and can lead to permanent damage in bone. Creep in bone is a complex phenomenon and varies with type of loading and local mechanical properties. Human trabecular bone samples from proximal tibia were harvested from a 71-year old female cadaver with osteoporosis. The samples were initially subjected to one cycle load up to 1% strain to determine the creep load. Samples were then loaded in compression under a constant stress for 2h and immediately unloaded. All tests were conducted with the specimens soaked in phosphate buffered saline with proteinase inhibitors at 37 °C. Steady state creep rate and final creep strain were estimated from mechanical testing and compared with published data. The steady state creep rate correlated well with values obtained from bovine tibial and human vertebral trabecular bone, and was higher for lower density samples. Tissue architecture was analyzed by micro-computed tomography (μCT) both before and after creep testing to assess creep deformation and damage accumulated. Quantitative morphometric analysis indicated that creep induced changes in trabecular separation and the structural model index. A main mode of deformation was bending of trabeculae. Copyright © 2014 Elsevier B.V. All rights reserved.

  2. A New Natural Lactone from <em>Dimocarpus> <em>longan> Lour. Seeds

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    Zhongjun Li

    2012-08-01

    Full Text Available A new natural product named longanlactone was isolated from <em>Dimocarpus> <em>longan> Lour. seeds. Its structure was determined as 3-(2-acetyl-1<em>H>-pyrrol-1-yl-5-(prop-2-yn-1-yldihydrofuran-2(3H-one by spectroscopic methods and HRESIMS.

  3. Advantages of the Ilizarov external fixation in the management of intra-articular fractures of the distal tibia

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    Kaspiris Angelos

    2009-09-01

    Full Text Available Abstract Background Treatment of distal tibial intra-articular fractures is challenging due to the difficulties in achieving anatomical reduction of the articular surface and the instability which may occur due to ligamentous and soft tissue injury. The purpose of this study is to present an algorithm in the application of external fixation in the management of intra-articular fractures of the distal tibia either from axial compression or from torsional forces. Materials and methods Thirty two patients with intra-articular fractures of the distal tibia have been studied. Based on the mechanism of injury they were divided into two groups. Group I includes 17 fractures due to axial compression and group II 15 fractures due to torsional force. An Ilizarov external fixation was used in 15 patients (11 of group I and 4 of group II. In 17 cases (6 of group I and 11 of group II a unilateral hinged external fixator was used. In 7 out of 17 fractures of group I an additional fixation of the fibula was performed. Results All fractures were healed. The mean time of removal of the external fixator was 11 weeks for group I and 10 weeks for group II. In group I, 5 patients had radiological osteoarthritic lesions (grade III and IV but only 2 were symptomatic. Delayed union occurred in 3 patients of group I with fixed fibula. Other complications included one patient of group II with subluxation of the ankle joint after removal of the hinged external fixator, in 2 patients reduction found to be insufficient during the postoperative follow up and were revised and 6 patients had a residual pain. The range of ankle joint motion was larger in group II. Conclusion Intra-articular fractures of the distal tibia due to axial compression are usually complicated with cartilaginous problems and are requiring anatomical reduction of the articular surface. Fractures due to torsional forces are complicated with ankle instability and reduction should be augmented with ligament

  4. Advantages of the Ilizarov external fixation in the management of intra-articular fractures of the distal tibia

    Science.gov (United States)

    Vasiliadis, Elias S; Grivas, Theodoros B; Psarakis, Spyridon A; Papavasileiou, Evangelos; Kaspiris, Angelos; Triantafyllopoulos, Georgios

    2009-01-01

    Background Treatment of distal tibial intra-articular fractures is challenging due to the difficulties in achieving anatomical reduction of the articular surface and the instability which may occur due to ligamentous and soft tissue injury. The purpose of this study is to present an algorithm in the application of external fixation in the management of intra-articular fractures of the distal tibia either from axial compression or from torsional forces. Materials and methods Thirty two patients with intra-articular fractures of the distal tibia have been studied. Based on the mechanism of injury they were divided into two groups. Group I includes 17 fractures due to axial compression and group II 15 fractures due to torsional force. An Ilizarov external fixation was used in 15 patients (11 of group I and 4 of group II). In 17 cases (6 of group I and 11 of group II) a unilateral hinged external fixator was used. In 7 out of 17 fractures of group I an additional fixation of the fibula was performed. Results All fractures were healed. The mean time of removal of the external fixator was 11 weeks for group I and 10 weeks for group II. In group I, 5 patients had radiological osteoarthritic lesions (grade III and IV) but only 2 were symptomatic. Delayed union occurred in 3 patients of group I with fixed fibula. Other complications included one patient of group II with subluxation of the ankle joint after removal of the hinged external fixator, in 2 patients reduction found to be insufficient during the postoperative follow up and were revised and 6 patients had a residual pain. The range of ankle joint motion was larger in group II. Conclusion Intra-articular fractures of the distal tibia due to axial compression are usually complicated with cartilaginous problems and are requiring anatomical reduction of the articular surface. Fractures due to torsional forces are complicated with ankle instability and reduction should be augmented with ligament repair, in order to

  5. Purification, Characterization and Antioxidant Activities <em>in Vitroem>> em>and <em>in Vivoem> of the Polysaccharides from <em>Boletus edulisem> Bull

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    Yijun Fan

    2012-07-01

    Full Text Available A water-soluble polysaccharide (BEBP was extracted from <em>Boletus edulis em>Bull using hot water extraction followed by ethanol precipitation. The polysaccharide BEBP was further purified by chromatography on a DEAE-cellulose column, giving three major polysaccharide fractions termed BEBP-1, BEBP-2 and BEBP-3. In the next experiment, the average molecular weight (Mw, IR and monosaccharide compositional analysis of the three polysaccharide fractions were determined. The evaluation of antioxidant activities both <em>in vitroem> and <em>in vivo em>suggested that BEBP-3 had good potential antioxidant activity, and should be explored as a novel potential antioxidant.

  6. Análise das atribuições causais do sucesso e do insucesso na competição, em função do nível competitivo dos futebolistas portugueses Analysis of causal attributions of success and failure in competitions regarding Portuguese soccer players' competition level

    Directory of Open Access Journals (Sweden)

    Paulo Malico Sousa

    2008-01-01

    Full Text Available Tendo como referência o modelo atribuicional da motivação e emoção de Weiner (1979, pretendeu-se avaliar as atribuições causais, em situações de sucesso e insucesso desportivo, em função da influência dos diferentes níveis competitivos dos futebolistas portugueses. Analisando uma amostra que integrou 125 futebolistas, que participaram em três níveis competitivos do futebol português (II Divisão; III Divisão; I Divisão Distrital, este estudo apresenta resultados quanto aos mecanismos de perceção de causalidade revelados pelos atletas em função dos diferentes níveis competitivos onde estão inseridos. Os resultados evidenciaram diferenças significativas, nomeadamente no que concerne às dimensões causais referente ao locus de causalidade e controle externo (em situações de sucesso e locus de causalidade e nível de estabilidade (no caso dos insucessos.Having as a reference Weiner's attributional model of motivation and emotion (1979, this work intended to evaluate the causal attributions, in sport situations of success and failure, in relation to Portuguese soccer players' competitive levels. Studying a sample of 125 soccer players, who compete in three competitive levels (II League; III League; I District League, this study presents results about the mechanisms of causality perception, revealed by the athletes in these 3 different competitive levels. The results had evidenced significant differences between the causal dimensions of locus of causality and external control (success situations and the locus of causality and level of stability (failure situations.

  7. Clinical Application of Solid Model Based on Trabecular Tibia Bone CT Images Created by 3D Printer.

    Science.gov (United States)

    Cho, Jaemo; Park, Chan-Soo; Kim, Yeoun-Jae; Kim, Kwang Gi

    2015-07-01

    The aim of this work is to use a 3D solid model to predict the mechanical loads of human bone fracture risk associated with bone disease conditions according to biomechanical engineering parameters. We used special image processing tools for image segmentation and three-dimensional (3D) reconstruction to generate meshes, which are necessary for the production of a solid model with a 3D printer from computed tomography (CT) images of the human tibia's trabecular and cortical bones. We examined the defects of the mechanism for the tibia's trabecular bones. Image processing tools and segmentation techniques were used to analyze bone structures and produce a solid model with a 3D printer. These days, bio-imaging (CT and magnetic resonance imaging) devices are able to display and reconstruct 3D anatomical details, and diagnostics are becoming increasingly vital to the quality of patient treatment planning and clinical treatment. Furthermore, radiographic images are being used to study biomechanical systems with several aims, namely, to describe and simulate the mechanical behavior of certain anatomical systems, to analyze pathological bone conditions, to study tissues structure and properties, and to create a solid model using a 3D printer to support surgical planning and reduce experimental costs. These days, research using image processing tools and segmentation techniques to analyze bone structures to produce a solid model with a 3D printer is rapidly becoming very important.

  8. <em>Angiostrongylus vasorumem> in red foxes (<em>Vulpes vulpesem> and badgers (<em>Meles melesem> from Central and Northern Italy

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    Marta Magi

    2010-06-01

    Full Text Available Abstract During 2004-2005 and 2007-2008, 189 foxes (<em>Vulpes vulpesem> and 6 badgers (<em>Meles melesem> were collected in different areas of Central Northern Italy (Piedmont, Liguria and Tuscany and examined for <em>Angiostrongylus vasorumem> infection. The prevalence of the infection was significantly different in the areas considered, with the highest values in the district of Imperia (80%, Liguria and in Montezemolo (70%, southern Piedmont; the prevalence in Tuscany was 7%. One badger collected in the area of Imperia turned out to be infected, representing the first report of the parasite in this species in Italy. Further studies are needed to evaluate the role played by fox populations as reservoirs of infection and the probability of its spreading to domestic dogs.
    Riassunto <em>Angiostrongylus vasorumem> nella volpe (<em>Vulpes vulpesem> e nel tasso (<em>Meles melesem> in Italia centro-settentrionale. Nel 2004-2005 e 2007-2008, 189 volpi (<em>Vulpes vulpesem> e 6 tassi (<em>Meles melesem> provenienti da differenti aree dell'Italia settentrionale e centrale (Piemonte, Liguria Toscana, sono stati esaminati per la ricerca di <em>Angiostrongylus vasorumem>. La prevalenza del nematode è risultata significativamente diversa nelle varie zone, con valori elevati nelle zone di Imperia (80% e di Montezemolo (70%, provincia di Cuneo; la prevalenza in Toscana è risultata del 7%. Un tasso proveniente dall'area di Imperia è risultato positivo per A. vasorum; questa è la prima segnalazione del parassita in tale specie in Italia. Ulteriori studi sono necessari per valutare il potenziale della volpe come serbatoio e la possibilità di diffusione della parassitosi ai cani domestici.

    doi:10.4404/hystrix-20.2-4442

  9. Método mãe canguru nos hospitais / maternidades públicos de Salvador e atuação dos profissionais da saúde na segunda etapa do método Kangaroo mother method in hospitals / public maternity in Salvador and performance of health professionals in the second stage of the method

    Directory of Open Access Journals (Sweden)

    Juliana Rodrigues da Silva

    2011-06-01

    Full Text Available OBJETIVO: investigar quantos hospitais/ maternidades públicos em Salvador utilizam o método mãe-canguru, quais os profissionais estão inseridos na equipe e caracterizar a atuação dos profissionais de saúde que estão inseridos na segunda etapa do método. MÉTODO: trata-se de um estudo quantitativo descritivo do qual participaram os responsáveis pelo setor de neonatologia e os profissionais de saúde inseridos na segunda etapa do método respondendo a questionários. Os dados obtidos foram analisados por meio de estatística descritiva calculando-se frequências simples. RESULTADOS:das sete instituições públicas de Salvador quatro utilizam o método. Nas três instituições pesquisadas realizam-se as três etapas preconizadas, em duas delas o quadro profissional tem pelo menos um atuante de cada especialidade recomendada pelo Ministério da Saúde, no entanto evidencia-se reduzido número de fonoaudiólogos nos serviços. Dentre as principais ações dos profissionais da saúde inseridos na segunda etapa estão o incentivo ao posicionamento canguru, ao aleitamento materno exclusivo e orientação às mães quanto aos cuidados com o bebê. CONCLUSÕES:evidencia-se que a recomendação do Ministério da Saúde de que o método seja implantado nas unidades médico-assistenciais integrante do Sistema Único de Saúde ainda não é uma realidade em todos os hospitais/ maternidades públicos de Salvador, no entanto evidenciou-se quadro profissional em conformidade com a recomendação em duas das instituições pesquisadas e a atuação dos profissionais entrevistados se incorpora no campo da transdisciplinaridade.PURPOSE:to investigate how many public hospitals and maternity hospitals in Salvador use the Kangaroo Mother Method, who are the professionals inserted in the team, and to characterize the acting of the health professionals who are inserted in the second stage of the method. METHOD: a descriptive quantitative study, in which the

  10. Congenital pseudarthrosis of the tibia: Management and complications

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    Hitesh Shah

    2012-01-01

    Full Text Available Congenital pseudarthrosis of the tibia (CPT is a rare pathology, which is usually associated with neurofibromatosis type I. The natural history of the disease is extremely unfavorable and once a fracture occurs, there is a little or no tendency for the lesion to heal spontaneously. It is challenging to treat effectively this difficult condition and its possible complications. Treatment is mainly surgical and it aims to obtain a long term bone union, to prevent limb length discrepancies, to avoid mechanical axis deviation, soft tissue lesions, nearby joint stiffness, and pathological fracture. The key to get primary union is to excise hamartomatous tissue and pathological periosteum. Age at surgery, status of fibula, associated shortening, and deformities of leg and ankle play significant role in primary union and residual challenges after primary healing. Unfortunately, none of invasive and noninvasive methods have proven their superiority. Surgical options such as intramedullary nailing, vascularized fibula graft, and external fixator, have shown equivocal success rate in achieving primary union although they are often associated with acceptable results. Amputation must be reserved for failed reconstruction, severe limb length discrepancy and gross deformities of leg and ankle. Distinct advantages, complications, and limitation of each primary treatment as well as strategies to deal with potential complications have been described. Each child with CPT must be followed up till skeletal maturity to identify and rectify residual problems after primary healing.

  11. Assessment of Genetic Fidelity in <em>Rauvolfia em>s>erpentina em>Plantlets Grown from Synthetic (Encapsulated Seeds Following <em>in Vitroem> Storage at 4 °C

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    Mohammad Anis

    2012-05-01

    Full Text Available An efficient method was developed for plant regeneration and establishment from alginate encapsulated synthetic seeds of <em>Rauvolfia serpentinaem>. Synthetic seeds were produced using <em>in vitroem> proliferated microshoots upon complexation of 3% sodium alginate prepared in Llyod and McCown woody plant medium (WPM and 100 mM calcium chloride. Re-growth ability of encapsulated nodal segments was evaluated after storage at 4 °C for 0, 1, 2, 4, 6 and 8 weeks and compared with non-encapsulated buds. Effects of different media <em>viz>; Murashige and Skoog medium; Lloyd and McCown woody Plant medium, Gamborg’s B5 medium and Schenk and Hildebrandt medium was also investigated for conversion into plantlets. The maximum frequency of conversion into plantlets from encapsulated nodal segments stored at 4 °C for 4 weeks was achieved on woody plant medium supplement with 5.0 μM BA and 1.0 μM NAA. Rooting in plantlets was achieved in half-strength Murashige and Skoog liquid medium containing 0.5 μM indole-3-acetic acid (IAA on filter paper bridges. Plantlets obtained from stored synseeds were hardened, established successfully <em>ex vitroem> and were morphologically similar to each other as well as their mother plant. The genetic fidelity of <em>Rauvolfia em>clones raised from synthetic seeds following four weeks of storage at 4 °C were assessed by using random amplified polymorphic<em> em>DNA (RAPD and inter-simple sequence repeat<em> em>(ISSR markers. All the RAPD and ISSR profiles from generated plantlets were monomorphic and comparable<em> em>to the mother plant, which confirms the genetic<em> em>stability among the clones. This synseed protocol could be useful for establishing a particular system for conservation, short-term storage and production of genetically identical and stable plants before it is released for commercial purposes.

  12. Sulla presenza di <em>Sorex antinoriiem>, <em>Neomys anomalusem> (Insectivora, Soricidae e <em>Talpa caecaem> (Insectivora, Talpidae in Umbria

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    A.M. Paci

    2003-10-01

    Full Text Available Lo scopo del contributo è di fornire un aggiornamento sulla presenza del Toporagno del Vallese <em>Sorex antinoriiem>, del Toporagno acquatico di Miller <em>Neomys anomalusem> e della Talpa cieca <em>Talpa caecaem> in Umbria, dove le specie risultano accertate ormai da qualche anno. A tal fine sono stati rivisitati i reperti collezionati e la bibliografia conosciuta. Toporagno del Vallese: elevato di recente a livello di specie da Brünner et al. (2002, altrimenti considerato sottospecie del Toporagno comune (<em>S. araneus antinoriiem>. È conservato uno di tre crani incompleti (mancano mandibole ed incisivi superiori al momento prudenzialmente riferiti a <em>Sorex> cfr. <em>antinorii>, provenienti dall?Appennino umbro-marchigiano settentrionale (dintorni di Scalocchio - PG, 590 m. s.l.m. e determinati sulla base della pigmentazione rossa degli ipoconi del M1 e M2; Toporagno acquatico di Miller: tre crani (Breda in Paci e Romano op. cit. e un esemplare intero (Paci, ined. sono stati trovati a pochi chilometri di distanza gli uni dall?altro tra i comuni di Assisi e Valfabbrica, in ambienti mediocollinari limitrofi al Parco Regionale del M.te Subasio (Perugia. In provincia di Terni la specie viene segnalata da Isotti (op. cit. per i dintorni di Orvieto. Talpa cieca: sono noti una femmina e un maschio raccolti nel comune di Pietralunga (PG, rispettivamente in una conifereta a <em>Pinus nigraem> (m. 630 s.l.m. e nelle vicinanze di un bosco misto collinare a prevalenza di <em>Quercus cerrisem> (m. 640 s.l.m.. Recentemente un terzo individuo è stato rinvenuto nel comune di Sigillo (PG, all?interno del Parco Regionale di M.te Cucco, sul margine di una faggeta a 1100 m s.l.m. In entrambi i casi l?areale della specie è risultato parapatrico con quello di <em>Talpa europaeaem>.

  13. Ser militar na primeira pessoa: perceções de mulheres militares sobre um contexto profissional de hegemonia (ainda) masculina

    OpenAIRE

    Ramos, Maria Isabel de Sousa

    2012-01-01

    Dissertação de mestrado em Educação e Formação de Adultos e Intervenção Comunitária, apresentada à Faculdade de Psicologia e Ciências da Educação da Universidade de Coimbra. Inserido no âmbito do Mestrado em Educação e Formação de Adultos e Intervenção Comunitária, este trabalho terá como fim último tentar contribuir para a promoção da igualdade de género neste domínio. Das diferentes esferas da vida que tínhamos ao nosso dispor como alvo de estudo, escolhemos fazer incidir a nossa atenção...

  14. A imagem do hiato: Budapeste* e a fotografia

    Directory of Open Access Journals (Sweden)

    Renato Cury Tardivo

    2010-12-01

    Full Text Available Este artigo propõe uma análise comparativa entre o romance Budapeste, de Chico Buarque, e a linguagem da fotografia. Inserido no âmbito interdisciplinar da psicologia da arte, vale-se de referenciais de crítica literária, estética, fenomenologia e psicanálise, a fim de analisar em que medida Budapeste e a fotografia correspondem-se. A partir da leitura do romance, levantamos algumas questões que, em seguida, procuramos problematizar e ampliar, articulando-as a elementos pertencentes à linguagem fotográfica. Tanto no romance analisado quanto na linguagem da fotografia, parece haver uma espécie de duplo movimento segundo o qual a realidade revela e é revelada

  15. Caracterização fenogenotípica da resistência antimicrobiana em Staphylococcus spp. isolados de mastite bovina

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    Elaine C.L. Mendonça

    2012-09-01

    Full Text Available A utilização de antibióticos no controle das infecções intramamárias e na eliminação de prováveis fontes de infecção nas fazendas leiteiras se constitui em importante medida de controle. No entanto, o uso inadequado de antibióticos no tratamento da doença pode selecionar cepas resistentes e comprometer a eficiência do tratamento. Bactérias do gênero Staphylococcus spp. estão entre os principais agentes etiológicos da mastite bovina e são freqüentemente resistentes aos antimicrobianos, em especial aos beta-lactâmicos, principalmente por dois mecanismos distintos: a produção da enzima extracelular beta-lactamase, codificada pelo gene blaZ, e a produção de PBP2a ou PBP2´, uma proteína ligante de penicilina de baixa afinidade, codificada pelo gene mecA. A expressão do gene mecA é constitutiva ou induzida por antibióticos betalactâmicos, como a oxacilina e cefoxitina. O gene mecA está inserido no cromossomo através de um elemento genético móvel, denominado cassete estafilocócico cromossômico mec (SCCmec. O presente estudo avaliou o perfil fenogenotípico de resistência aos beta-lactâmicos em 250 isolados de Staphylococcus spp., utilizando os marcadores oxacilina e cefoxitina, de modo a produzir dados que possam contribuir para o conhecimento da resistência antimicrobiana em algumas propriedades leiteiras das regiões Sul-Fluminense e Metropolitana do Estado do Rio de Janeiro com o objetivo de subsidiar a implementação de medidas de controle dessa enfermidade. A avaliação da resistência foi feita a partir de 8 diferentes testes fenotípicos, sendo obtidos 54 perfis. Os testes de difusão em disco simples e ágar screen com oxacilina foram utilizados como "padrão ouro" para os cálculos dos valores de sensibilidade, especificidade e predição por serem preconizados pelo CLSI veterinário. O teste de difusão em disco simples com cefoxitina foi o de melhor desempenho na predição da resistência a

  16. Four Novel Cellulose Synthase (CESA Genes from <em>Birch> (<em>Betula platyphylla em>Suk. Involved in Primary and Secondary Cell Wall Biosynthesis

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    Xuemei Liu

    2012-09-01

    Full Text Available Cellulose synthase (CESA, which is an essential catalyst for the generation of plant cell wall biomass, is mainly encoded by the <em>CesA> gene family that contains ten or more members. In this study; four full-length cDNAs encoding CESA were isolated from<em> Betula platyphyllaem> Suk., which is an important timber species, using RT-PCR combined with the RACE method and were named as <em>BplCesA3em>, <em>−4em>,> −7 em>and> −8em>. These deduced CESAs contained the same typical domains and regions as their <em>Arabidopsis> homologs. The cDNA lengths differed among these four genes, as did the locations of the various protein domains inferred from the deduced amino acid sequences, which shared amino acid sequence identities ranging from only 63.8% to 70.5%. Real-time RT-PCR showed that all four <em>BplCesAs> were expressed at different levels in diverse tissues. Results indicated that BplCESA8 might be involved in secondary cell wall biosynthesis and floral development. BplCESA3 appeared in a unique expression pattern and was possibly involved in primary cell wall biosynthesis and seed development; it might also be related to the homogalacturonan synthesis. BplCESA7 and BplCESA4 may be related to the formation of a cellulose synthase complex and participate mainly in secondary cell wall biosynthesis. The extremely low expression abundance of the four BplCESAs in mature pollen suggested very little involvement of them in mature pollen formation in <em>Betula>. The distinct expression pattern of the four <em>BplCesAs> suggested they might participate in developments of various tissues and that they are possibly controlled by distinct mechanisms in <em>Betula.>

  17. Microsatellite Loci in the Gypsophyte <em>Lepidium subulatum em>(Brassicaceae, and Transferability to Other <em>Lepidieae>

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    José Gabriel Segarra-Moragues

    2012-09-01

    Full Text Available Polymorphic microsatellite markers were developed for the Ibero-North African, strict gypsophyte <em>Lepidium subulatumem> to unravel the effects of habitat fragmentation in levels of genetic diversity, genetic structure and gene flow among its populations. Using 454 pyrosequencing 12 microsatellite loci including di- and tri-nucleotide repeats were characterized in <em>L. subulatumem>. They amplified a total of 80 alleles (2–12 alleles per locus in a sample of 35 individuals of <em>L. subulatumem>, showing relatively high levels of genetic diversity, <em>H>O = 0.645, <em>H>E = 0.627. Cross-species transferability of all 12 loci was successful for the Iberian endemics <em>Lepidium cardaminesem>, <em>Lepidium stylatumem>, and the widespread, <em>Lepidium graminifoliumem> and one species each of two related genera, <em>Cardaria drabaem> and <em>Coronopus didymusem>. These microsatellite primers will be useful to investigate genetic diversity, population structure and to address conservation genetics in species of <em>Lepidium>.

  18. Can Clinical and Surgical Parameters Be Combined to Predict How Long It Will Take a Tibia Fracture to Heal? A Prospective Multicentre Observational Study: The FRACTING Study

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    Leo Massari

    2018-01-01

    Full Text Available Background. Healing of tibia fractures occurs over a wide time range of months, with a number of risk factors contributing to prolonged healing. In this prospective, multicentre, observational study, we investigated the capability of FRACTING (tibia FRACTure prediction healING days score, calculated soon after tibia fracture treatment, to predict healing time. Methods. The study included 363 patients. Information on patient health, fracture morphology, and surgical treatment adopted were combined to calculate the FRACTING score. Fractures were considered healed when the patient was able to fully weight-bear without pain. Results. 319 fractures (88% healed within 12 months from treatment. Forty-four fractures healed after 12 months or underwent a second surgery. FRACTING score positively correlated with days to healing: r=0.63 (p<0.0001. Average score value was 7.3 ± 2.5; ROC analysis showed strong reliability of the score in separating patients healing before versus after 6 months: AUC = 0.823. Conclusions. This study shows that the FRACTING score can be employed both to predict months needed for fracture healing and to identify immediately after treatment patients at risk of prolonged healing. In patients with high score values, new pharmacological and nonpharmacological treatments to enhance osteogenesis could be tested selectively, which may finally result in reduced disability time and health cost savings.

  19. Value of lateral blood pool imaging in patients with suspected stress fractures of the tibia.

    Science.gov (United States)

    Mohan, Hosahalli K; Clarke, Susan E M; Centenara, Martin; Lucarelli, Amanda; Baron, Daniel; Fogelman, Ignac

    2011-03-01

    To critically evaluate the use of lateral blood pool imaging in athletes with lower limb pain and with a clinical suspicion of stress fracture. Two experienced nuclear medicine physicians evaluated 3-phase bone scans using 99mTc-methylene diphosphonate performed in 50 consecutive patients referred from a specialist sports injury clinic for suspected tibial stress fracture. The vascularity to the tibia as seen on the blood pool (second phase) images in the anterior/posterior views was compared with the lateral/medial view assessments. Stress fractures were presumed to be present when on the delayed images (third phase) there was a focal or fusiform area of increased tracer uptake involving the tibial cortex. Shin splints which are a recognized cause of lower limb pain in athletes mimicking stress fracture were diagnosed if increased tracer uptake was seen extending along the posterior tibial surface with no significant focal or fusiform area of uptake within this. Inter-reviewer agreement for the assessment of vascularity was also assessed using Cohen's Kappa scores. Twenty-four stress fractures in 24 patients and 66 shin splints in 40 patients were diagnosed. In 18 patients stress fracture and shin splints coexisted. In 10 patients no tibial pathology was identified. Of the 24 patients diagnosed with stress fractures, lateral/medial blood pool imaging was superior in the assessment of blood pool activity (P tibial stress fractures, lateral views of the tibia provide the optimal method for evaluation of vascularity. Prospective studies with quantitative or semi-quantitative assessment of skeletal vascularity could provide supplementary information relating to the pathophysiology of stress fractures, for example, the time scale of vascular changes after a tibial stress fracture, and potentially could have clinical relevance as to the assessment of the severity of stress fractures and their prognosis.

  20. Bone mineral density changes of the proximal tibia after revision total knee arthroplasty. A randomised study with the use of porous tantalum metaphyseal cones

    DEFF Research Database (Denmark)

    Jensen, Claus L; Petersen, Michael M; Schrøder, Henrik M

    2012-01-01

    Forty patients were enrolled in a prospective randomised study using conventional method or "Trabecular Metal Cone" (TM Cone) (Zimmer inc., Warsaw, USA) for reconstruction of bone loss of the proximal tibia during revision total knee arthroplasty (rTKA). The aim was to evaluate changes in bone mi...

  1. Reflexões sobre a Inserção da Temática Gestão da Clínica na Formação Profissional em Saúde

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    Tais Soares Sena

    Full Text Available RESUMO O delineamento de um sistema de saúde gratuito de cobertura universal, a partir da garantia constitucional de direito à saúde em seu conceito mais abrangente, representou grande avanço para a Saúde Pública no Brasil. Entretanto, a persistência de problemas como a má gestão e insuficiência de recursos, aliados às dimensões continentais do País e às diferenças consideráveis entre as suas regiões, compromete o acesso, a qualidade e a eficiência do cuidado no Sistema Único de Saúde (SUS1. Nesse contexto, urge a mudança do modelo assistencial vigente, para o que se torna fundamental a reforma do perfil do profissional de saúde nele inserido. O presente trabalho relata a experiência de aprendizagem de uma especializanda em um curso de Gestão da Clínica nas Regiões de Saúde do SUS e a contribuição do emprego de metodologias ativas de ensino-aprendizagem para amplificar a aquisição de novos conteúdos aplicáveis à sua prática profissional. Trata-se de um relato da trajetória de uma médica inserida no SUS, que descreve suas principais reflexões sobre uma nova temática, guiada por uma nova maneira de aprender.

  2. Unicameral bone cyst of the proximal tibia in a five year old girl.

    Science.gov (United States)

    Tahririan, Mohammadali; Motiffard, Mehdi

    2012-01-01

    Unicameral bone cysts (UBCs) are benign, osteolytic lesions which are often asymptomatic and are commonly seen in the proximal of humerus and femur. The average age at diagnosis is 9-11 years and there is a male preponderance with a male-to-female ratio of approximately 2-2.5 to 1. We describe a case of 5-year-old girl who presented to orthopedic clinic with a 4-month history of painful limping. Plain radiography of the right knee demonstrated a well-defined lytic lesion in the proximal of the tibia. Open biopsy and then curettage and bone grafting with bone- substitute was performed. The diagnosis of this condition requires a high index of suspicion. This report demonstrates that all UBCs do not have the same clinical patterns and with adequate attention good results can be achieved.

  3. Unicameral bone cyst of the proximal tibia in a five year old girl

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    Mohammadali Tahririan

    2012-01-01

    Full Text Available Unicameral bone cysts (UBCs are benign, osteolytic lesions which are often asymptomatic and are commonly seen in the proximal of humerus and femur. The average age at diagnosis is 9-11 years and there is a male preponderance with a male-to-female ratio of approximately 2-2.5 to 1. We describe a case of 5-year-old girl who presented to orthopedic clinic with a 4-month history of painful limping. Plain radiography of the right knee demonstrated a well-defined lytic lesion in the proximal of the tibia. Open biopsy and then curettage and bone grafting with bone- substitute was per-formed. The diagnosis of this condition requires a high index of suspicion. This report demonstrates that all UBCs do not have the same clinical patterns and with adequate attention good results can be achieved.

  4. Proximal tibia volumetric bone mineral density is correlated to the magnitude of local acceleration in male long-distance runners

    OpenAIRE

    Dériaz, Olivier; Najafi, Bijan; Ballabeni, Pierluigi; Crettenand, Antoinette; Gobelet, Charles; Aminian, Kamiar; Rizzoli, René; Gremion, Gerald

    2010-01-01

    The beneficial effect of physical exercise on bone mineral density (BMD) is at least partly explained by the forces exerted directly on the bones. Male runners present generally higher BMD than sedentary individuals. We postulated that the proximal tibia BMD is related to the running distance, as well as to the magnitude of the shocks (while running) in male runners. A prospective study (three yearly measurements) included 81 healthy male subjects: 16 sedentary lean subjects, and 3 groups of ...

  5. Constituents from <em>Vigna em>vexillata> and Their Anti-Inflammatory Activity

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    Guo-Feng Chen

    2012-08-01

    Full Text Available The seeds of <em>Vigna em>genus are important food resources and there have already been many reports regarding their bioactivities. In our preliminary bioassay, the chloroform layer of methanol extracts of<em> V. vexillata em>demonstrated significant anti-inflammatory bioactivity. Therefore, the present research is aimed to purify and identify the anti-inflammatory principles of <em>V. vexillataem>. One new sterol (1 and two new isoflavones (2,3 were reported from the natural sources for the first time and their chemical structures were determined by the spectroscopic and mass spectrometric analyses. In addition, 37 known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature. Among the isolates, daidzein (23, abscisic acid (25, and quercetin (40 displayed the most significant inhibition of superoxide anion generation and elastase release.

  6. Synthesis, Crystal Structure and Luminescent Property of Cd (II Complex with <em>N-Benzenesulphonyl-L>-leucine

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    Xishi Tai

    2012-09-01

    Full Text Available A new trinuclear Cd (II complex [Cd3(L6(2,2-bipyridine3] [L =<em> Nem>-phenylsulfonyl-L>-leucinato] has been synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction analysis. The results show that the complex belongs to the orthorhombic, space group<em> Pem>212121 with<em> aem> = 16.877(3 Å, <em>b> em>= 22.875(5 Å, <em>c em>= 29.495(6 Å, <em>α> em>= <emem>= <emem>= 90°, <em>V> em>= 11387(4 Å3, <em>Z> em>= 4, <em>Dc>= 1.416 μg·m−3, <emem>= 0.737 mm−1, <em>F> em>(000 = 4992, and final <em>R>1 = 0.0390, <em>ωR>2 = 0.0989. The complex comprises two seven-coordinated Cd (II atoms, with a N2O5 distorted pengonal bipyramidal coordination environment and a six-coordinated Cd (II atom, with a N2O4 distorted octahedral coordination environment. The molecules form one dimensional chain structure by the interaction of bridged carboxylato groups, hydrogen bonds and p-p interaction of 2,2-bipyridine. The luminescent properties of the Cd (II complex and <em>N-Benzenesulphonyl-L>-leucine in solid and in CH3OH solution also have been investigated.

  7. <em>N>-Substituted 5-Chloro-6-phenylpyridazin-3(2<em>H>-ones: Synthesis, Insecticidal Activity Against <em>Plutella xylostella em>(L. and SAR Study

    Directory of Open Access Journals (Sweden)

    Song Yang

    2012-08-01

    Full Text Available A series of <em>N>-substituted 5-chloro-6-phenylpyridazin-3(2<em>H>-one derivatives were synthesized based on our previous work; all compounds were characterized by spectral data and tested for <em>in vitroem> insecticidal activity against <em>Plutella xylostellaem>. The results showed that the synthesized pyridazin-3(2<em>H>-one compounds possessed good insecticidal activities, especially the compounds 4b, 4d, and 4h which showed > 90% activity at 100 mg/L. The structure-activity relationships (SAR for these compounds were also discussed.

  8. MR findings of squamous cell carcinoma arising from chronic osteomyelitis of the tibia: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Han, Dong Hwa; Lee, Ji Hae; Cho, Woo Ho; Kim, Jae Hyung; Jeong, Myeong Ja; Kim, Soung Hee; Kim, Ji Young; Kim, Soo Hyun; Kang, Mi Jin; Bae, Kyung Eun [Dept. of Radiology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul (Korea, Republic of)

    2016-05-15

    Malignant transformation is a rare and late complication of untreated chronic osteomyelitis. Known radiographic findings of the malignant transformation of chronic osteomyelitis are osteolytic or mixed sclerotic and osteolytic lesions with or without soft tissue mass. But its magnetic resonance (MR) imaging findings are rarely described in the literature. We experienced a case of an 82-year-old man diagnosed with squamous cell carcinoma arising from long standing chronic osteomyelitis of the tibia. Our case indicates that radiologists should consider the possibility of malignant transformation in patients with untreated chronic osteomyelitis, with enhancing soft tissue mass invading and extending through underlying bone cortex and medulla on MR imaging.

  9. Efeito da temperatura sobre a composição físico-química e compostos bioativos de farinha de taro obtida em leito de jorro

    Directory of Open Access Journals (Sweden)

    Deise Souza de Castro

    2017-05-01

    Full Text Available Resumo A produção de farinhas a partir de frutas, hortaliças e de tubérculos não convencionais para esse processo vem sendo estudada como uma alternativa de produção de alimentos. Dentre os tubérculos, tem-se o taro, o qual pode ser consumido de várias maneiras: cozido, em forma de purê, como ingrediente para sopas e ensopados e em forma de farinha. Desta forma, objetivou-se com este trabalho estudar o processo de secagem por atomização do taro, em leito de jorro, sob diferentes temperaturas e avaliar a influência de condições operacionais no rendimento e na qualidade do produto após sua secagem. As análises físico-químicas realizadas no produto in natura e nas farinhas foram: teor de água, pH, acidez total titulável e ácido ascórbico total, atividade de água (25°C e cor, além de compostos fenólicos e flavonoides. As farinhas obtidas apresentaram vitamina C variando de 0,05 a 0,17 mg/100g, compostos fenólicos variando de 4,42 a 5,60 mg/100 g e quantidade de flavonoides de 1,05 a 4,30 µg/100 g, tornando-as alimentos fonte de compostos bioativos, os quais podem ser adicionados na elaboração de outros produtos ou inseridos na dieta humana. Conclui-se que a farinha obtida sob a temperatura de 90°C apresentou os maiores conteúdos de vitamina C, porém as farinhas obtidas sob as temperaturas de 70 °C e 80 °C possuem pH próximo da neutralidade, além do teor de água em porcentagem reduzida prolongar a vida de prateleira do produto.

  10. INFLUÊNCIA ESTOICA NA CONCEPÇÃO DE <em>STATUS> E <em>DICTUM> COMO <em> QUASI RES EM> (ὡσανεì τινά EM ABERLARDO STOIC INFLUENCE IN ABELARD'S CONCEPTION OF <em>STATUS> AND <em>DICTUM> AS <em>QUASI RESem> (ὡσανεì τινά.

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    Guy Hamelin

    2011-09-01

    Full Text Available Na sua obra, Pedro Abelardo (1079-1142 destaca duas noções metafísicas que fundamentam sua teoria lógica: o <em style="mso-bidi-font-style: normal;">statusem> e o <em style="mso-bidi-font-style: normal;">dictum propositionisem>, ao causar, respectivamente, a imposição (<em style="mso-bidi-font-style: normal;">impositioem> dos termos universais e o valor de verdade das proposições. Trata-se de expressões que se referem a naturezas ontológicas peculiares, na medida em que não são consideradas coisas (<em style="mso-bidi-font-style: normal;">resem>, mesmo que constituem causas. Todavia, também não são nada. Abelardo as chama de ‘quase coisas’ (<em style="mso-bidi-font-style: normal;">quasi resem>. No presente artigo, explicamos, primeiro, essas duas noções essenciais da lógica abelardiana, antes de tentar, em seguida, encontrar a fonte dessa metafísica particular. Em oposição a comentadores importantes da lógica de Abelardo, que estimam que haja uma forte influência platônica sobre essa concepção específica, defendemos antes, com apoio de textos significativos e de acordo com o nominalismo abelardiano, que a maior ascendência sobre a metafísica do nosso autor é a do estoicismo, sobretudo, antigo.In his work, Peter Abelard (1079-1142 highlights two metaphysical notions, which sustain his logical theory: the <em>status> and the <em>dictum propositionisem>, causing respectively both the imposition (<em>impositio> of universal terms and the thuth-value of propositions. Both expressions refer to peculiar ontological natures, in so far as they are not considered things (<em>res>, even if they constitute causes. Nevertheless, neither are they ‘nothing’. Abelard calls them ‘quasi-things’ (<em>quasi resem>. In the present article, we expound first these two essential notions of Abelardian logic before then trying to find the source of this particular metaphysics. Contrary to some important

  11. Interação medicamentosa em usuários de antidepressivos do sistema público de um município do sul do Brasil = Drug interaction in patients to public health system in antidepressants use in Southem of Brazil

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    Schenkel, Maiara

    2015-01-01

    Full Text Available Introdução: A depressão é um problema de saúde pública cujo tratamento se faz com uso de antidepressivos, os quais devem ser usados com cautela, devido aos seus efeitos colaterais e potenciais de interações medicamentosas. Objetivo: Identificar e classificar as principais interações medicamentosas em potencial de antidepressivos com outros medicamentos prescritos. Materiais e Métodos: Foi realizado um estudo com usuários de antidepressivos, que retiraram estes medicamentos na Unidade Básica de Saúde do município de São José do Inhacorá/RS. Os entrevistados foram localizados a partir de uma consulta ao banco de dados, realizada nos meses de dezembro de 2013 a janeiro de 2014. As entrevistas foram realizadas nas residências com auxilio de um instrumento de coleta de dados elaborado pelos autores e validado por estudo piloto. As interações medicamentosas potenciais foram pesquisadas na base de dados Micromedex® e aqueles medicamentos não encontrados foram pesquisados em livros sobre interação medicamentosa, e foram classificadas pela gravidade em maior, moderada e menor. Resultados: Foram entrevistados 88 pacientes, com idade média de 56,68±16,36. Foram encontradas 127 interações medicamentosas em potencial, sendo que 42 (47,72% estavam sujeitos a interações, com média de 5,90±2,73 por usuário. Quanto à gravidade, 69 (54,33% eram maior, 53 (41,73% moderada e 5 (3,94% menor. Conclusão: Este estudo demonstra a ocorrência das interações medicamentosas em potencial em grande parte dos usuários, bem como a prática de polifarmácia, que representa um risco ao usuário. Por isso, verifica-se a importância do farmacêutico inserido na equipe multidisciplinar, para poder minimizar os erros relacionados à farmacologia e melhorar a qualidade de vida dos pacientes

  12. Aplicação da competência de comunicação em projetos e revitalização do processo de ensino-aprendizagem em administração [doi: 10.21529/RECADM.2015013

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    Iraides Gonçalves Amaral

    2015-09-01

    Full Text Available Este artigo investigou a utilização da competência de comunicação em projetos, especificamente focada em projeto educacional. Justifica-se essa investigação em razão das transformações ocorridas nos contextos de ensino-aprendizagem, o que implicou a necessidade de compreender como as características dos discentes atuais demandam revitalização desses contextos. Para tanto, inicialmente, uma peça teatral foi apresentada aos discentes e posteriormente serviu de lócus para um estudo de caso de aplicação do projeto educacional. Com abordagem qualitativa e estratégia de pesquisa de estudos observacionais, os dados foram coletados por intermédio de: observação indireta e não participante, com relação à peça teatral analisada e registrada em protocolo de observação, totalizando um tempo de 3.570 minutos, computadas as 51 vezes em que essa peça foi assistida, multiplicadas pelos 70 minutos de duração; uma pesquisa survey, com 1.161 discentes; e entrevista semi-estruturada com o produtor da peça, os atores, docentes e coordenadores da instituição de ensino em que esses discentes estão inseridos. Visando atender a essa necessidade, este artigo buscou compreender como a competência de comunicação em projetos pode ser utilizada em um projeto educacional em instituições de ensino superior em Administração, por meio da investigação da pertinência de aplicação dessa competência em um projeto educacional. A análise dos dados oriundos dessas fontes de evidência foi realizada por meio da análise de conteúdo. Os resultados apontaram para a pertinência da aplicação da competência de comunicação no projeto educacional estudado.   Palavras-chave Aplicação da competência de comunicação em projetos; Projeto educacional; Revitalização do processo de ensino-aprendizagem. Application of communication competence in projects and revitalization of the teaching-learning in Administration Abstract This paper

  13. Effects of stocking density on growth performance, meat quality and tibia development of Pekin ducks.

    Science.gov (United States)

    Zhang, Ya Ru; Zhang, Lu Shuang; Wang, Zhong; Liu, Yang; Li, Fu Huang; Yuan, Jian Min; Xia, Zhao Fei

    2018-06-01

    This study was performed to investigate the effects of stocking density on performance, meat quality and tibia development in Pekin ducks reared on a plastic wire floor. A total of 372 healthy, 21-day-old, male ducks with similar body weight (BW) were randomly allotted to stocking densities of five (low), eight (medium) and 11 (high) birds/m 2 . Each group had six replicates. Results showed that compared with the low density group, medium and high stocking density caused a decrease in final BW at 42 days old, and in average daily gain, European performance index (p study, the stocking density of male Pekin ducks should be adjusted between five and eight birds/m 2 . © 2018 Japanese Society of Animal Science.

  14. Prevalência e gravidade da cárie dentária e necessidade de tratamento em crianças de 12 anos de município de pequeno porte inserido no contexto amazônico Prevalence of dental caries and treatment needs among 12-year-old children in a small-sized municipality in the Amazon region

    Directory of Open Access Journals (Sweden)

    Rodrigo Tobias

    2008-12-01

    Full Text Available O conhecimento da prevalência da cárie dentária em municípios inseridos no contexto amazônico é pouco observado na literatura científica. O presente estudo visa investigar a prevalência e necessidade de tratamento da população de crianças de 12 anos de Rio Preto da Eva, Amazonas no ano de 2007, segundo o sexo e o tipo de localidade (rural e urbana. O estudo transversal foi de natureza descritiva e exploratória com a coleta de dados primários da doença, cujo desenho teve como base o levantamento epidemiológico SB-Brasil 2003. A amostra foi constituída por 344 crianças nas residências e escolas na zona rural e urbana do município. O índice CPO-D geral encontrado foi de 3,73 (+0,17 com predomínio do componente cariado. O percentual de crianças livres de cárie nas zonas urbana e rural foi de 12,5 e 13,6, respectivamente. Não houve diferença estatisticamente significante entre os sexos e os tipos de localidade. Na zona rural existem cerca de duas vezes mais dentes com necessidade de tratamento do que na zona urbana. O tratamento restaurador representou a maior necessidade de tratamento desta população (86,2%. A prevalência de cárie na população de 12 anos de idade, em Rio Preto da Eva-AM, é moderada e o CPO-D médio encontrado está acima da meta estabelecida para o ano 2.000 pela FDI/OMS. Os dados evidenciam a necessidade de implementação de medidas de atenção à saúde bucal que sejam capazes de intervir nos determinantes da cárie dentária na população estudada.Scientific literature encloses little knowledge on the prevalence of dental caries in municipalities in the Amazon region. The present study aimed to investigate the prevalence and treatment needs in the population of 12-year-old children in the municipality of Rio Preto da Eva, Amazonas, in the year 2007, according to gender and type of locality (rural or urban. This was a cross-sectional study of descriptive and exploratory nature with collection of

  15. Natural Products from Antarctic Colonial Ascidians of the Genera <em>Aplidium> and <em>Synoicum>: Variability and Defensive Role

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    Conxita Avila

    2012-08-01

    Full Text Available Ascidians have developed multiple defensive strategies mostly related to physical, nutritional or chemical properties of the tunic. One of such is chemical defense based on secondary metabolites. We analyzed a series of colonial Antarctic ascidians from deep-water collections belonging to the genera <em>Aplidium> and <em>Synoicum> to evaluate the incidence of organic deterrents and their variability. The ether fractions from 15 samples including specimens of the species <em>A.> <em>falklandicum>, <em>A.> <em>fuegiense>, <em>A.> <em>meridianum>, <em>A.> <em>millari> and <em>S.> <em>adareanum> were subjected to feeding assays towards two relevant sympatric predators: the starfish <em>Odontaster> <em>validus>, and the amphipod <em>Cheirimedon> <em>femoratus>. All samples revealed repellency. Nonetheless, some colonies concentrated defensive chemicals in internal body-regions rather than in the tunic. Four ascidian-derived meroterpenoids, rossinones B and the three derivatives 2,3-epoxy-rossinone B, 3-epi-rossinone B, 5,6-epoxy-rossinone B, and the indole alkaloids meridianins A–G, along with other minoritary meridianin compounds were isolated from several samples. Some purified metabolites were tested in feeding assays exhibiting potent unpalatabilities, thus revealing their role in predation avoidance. Ascidian extracts and purified compound-fractions were further assessed in antibacterial tests against a marine Antarctic bacterium. Only the meridianins showed inhibition activity, demonstrating a multifunctional defensive role. According to their occurrence in nature and within our colonial specimens, the possible origin of both types of metabolites is discussed.

  16. Fumigant Antifungal Activity of Myrtaceae Essential Oils and Constituents from <em>Leptospermum petersoniiem> against Three <em>Aspergillus> Species

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    Il-Kwon Park

    2012-09-01

    Full Text Available Commercial plant essential oils obtained from 11 Myrtaceae plant species were tested for their fumigant antifungal activity against <em>Aspergillus ochraceusem>, <em>A. flavusem>, and <em>A. nigerem>. Essential oils extracted from<em> em>Leptospermum> <em>petersonii> at air concentrations of 56 × 10−3 mg/mL and 28 × 10−3 mg/mL completely inhibited the growth of the three <em>Aspergillus> species. However, at an air concentration of 14 × 10−3 mg/mL, inhibition rates of <em>L. petersoniiem> essential oils were reduced to 20.2% and 18.8% in the case of <em>A. flavusem> and <em>A. nigerem>, respectively. The other Myrtaceae essential oils (56 × 10−3 mg/mL only weakly inhibited the fungi or had no detectable affect. Gas chromatography-mass spectrometry analysis identified 16 compounds in <em>L. petersoniiem>> em>essential> em>oil.> em>The antifungal activity of the identified compounds was tested individually by using standard or synthesized compounds. Of these, neral and geranial inhibited growth by 100%, at an air concentration of 56 × 10−3 mg/mL, whereas the activity of citronellol was somewhat lover (80%. The other compounds exhibited only moderate or weak antifungal activity. The antifungal activities of blends of constituents identified in <em>L. petersoniiem> oil indicated that neral and geranial were the major contributors to the fumigant and antifungal activities.

  17. Perfil dos pacientes e características do tratamento fisioterapêutico aplicado aos trabalhadores com LER/DORT em Juiz de Fora, MG

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    Vanusa Caiafa Caetano

    Full Text Available INTRODUÇÃO: A reestruturação do processo produtivo verificada nas últimas décadas implicou alterações diretas na saúde do trabalhador, modificando o perfil de adoecimento e sofrimento desses indivíduos. Dentro desse contexto, observa-se um aumento significativo dos casos de Lesões por Esforços Repetitivos (LER e dos Distúrbios Osteomusculares Relacionados ao Trabalho (DORT. OBJETIVO: Conhecer o perfil dos trabalhadores com LER/DORT e a assistência fisioterapêutica aos quais são submetidos. METODOLOGIA: Pela aplicação de um questionário estruturado, foram entrevistados 80 trabalhadores, usuários do SUS, inseridos no Programa de Reabilitação Física do Centro de Referência em Saúde do Trabalhador (Cerest, por meio do Departamento de Saúde do Trabalhador (DSAT, Prefeitura Municipal de Juiz de Fora, Secretaria de Saúde (SS. RESULTADOS: Há um predomínio de casos de DORT no sexo feminino, e em 83,8% dos casos a renda pessoal não passa de um salário mínimo. Das ocupações encontradas, 76 (95% estavam relacionadas com o trabalho braçal, e quanto ao tempo de trabalho em uma mesma função, a média foi de 16 anos. Setenta e oito (97,5% trabalhadores afirmaram impossibilidades na realização das atividades de vida diária (AVDs. Quanto ao tratamento fisioterapêutico, 30 (37,6% relataram realizar algum tipo de cinesioterapia. CONCLUSÃO: A visão estritamente fisiopatológica, baseada no modelo unidirecional e curativista, não mostram resultados satisfatórios e eficazes. Isso implica a não resolução dos quadros álgicos, favorecendo períodos extensos de tratamento fisioterapêutico, sobrecarga do serviço público de saúde e repercussões no âmbito emocional e sócio-econômico desses trabalhadores.

  18. Clinical Relevance of <em>CDH1em> and <em>CDH13em> DNA-Methylation in Serum of Cervical Cancer Patients

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    Günther K. Bonn

    2012-07-01

    Full Text Available This study was designed to investigate the DNA-methylation status of <em>E>-cadherin (<em>CDH1em> and <em>H>-cadherin (<em>CDH13em> in serum samples of cervical cancer patients and control patients with no malignant diseases and to evaluate the clinical utility of these markers. DNA-methylation status of <em>CDH1em> and <em>CDH13em> was analyzed by means of MethyLight-technology in serum samples from 49 cervical cancer patients and 40 patients with diseases other than cancer. To compare this methylation analysis with another technique, we analyzed the samples with a denaturing high performance liquid chromatography (DHPLC PCR-method. The specificity and sensitivity of <em>CDH1em> DNA-methylation measured by MethyLight was 75% and 55%, and for <em>CDH13em> DNA-methylation 95% and 10%. We identified a specificity of 92.5% and a sensitivity of only 27% for the <em>CDH1em> DHPLC-PCR analysis. Multivariate analysis showed that serum <em>CDH1em> methylation-positive patients had a 7.8-fold risk for death (95% CI: 2.2–27.7; <em>p> = 0.001 and a 92.8-fold risk for relapse (95% CI: 3.9–2207.1; <em>p> = 0.005. We concluded that the serological detection of <em>CDH1em> and <em>CDH13em> DNA-hypermethylation is not an ideal diagnostic tool due to low diagnostic specificity and sensitivity. However, it was validated that <em>CDH1em> methylation analysis in serum samples may be of potential use as a prognostic marker for cervical cancer patients.

  19. Longitudinal stress fractures of the tibia: diagnosis by magnetic resonance imaging

    International Nuclear Information System (INIS)

    Umans, H.R.; Kaye, J.J.

    1996-01-01

    Previous works describe magnetic resonance (MR) imaging characteristics of stress fractures. This report focusses on MR imaging of longitudinal stress fractures of the tibia. Six cases are presented in which a longitudinal linear abnormal marrow signal was detected in the middle and distal parts of the tibial shaft. Five patients were imaged using a 1.5 Tesla MR unit. Axial, sagittal and coronal T1 and T2-weighted or fat suppressed proton density fast spin echo images were obtained in all but one patient. One patient was imaged using a 0.5 Tesla MR unit with axial and coronal T1- and T2-weighted sequences. Initial conventional radiographs seen at clinical presentation were interpreted as normal in all cases. Two patients underwent radionuclide bone scan, and one patient was imaged with CT prior to MR imaging. In each instance, MR imaging demonstrated linear marrow signal abnormalities orientated along the long axis of the tibial shaft. Endosteal and periosteal callus was identified on axial images. In all cases, MR imaging clearly demonstrated a fracture extending through one cortex with abnormal signal in both the marrow cavity as well as adjacent soft tissues indicating edema. (orig./MG)

  20. Longitudinal stress fractures of the tibia: diagnosis by magnetic resonance imaging

    Energy Technology Data Exchange (ETDEWEB)

    Umans, H.R. [Dept. of Radiology, Albert Einstein Coll. of Medicine and Montefiore Medical Center, Bronx, NY (United States); Kaye, J.J. [The Hospital for Special Surgery, New York, NY (United States)

    1996-05-01

    Previous works describe magnetic resonance (MR) imaging characteristics of stress fractures. This report focusses on MR imaging of longitudinal stress fractures of the tibia. Six cases are presented in which a longitudinal linear abnormal marrow signal was detected in the middle and distal parts of the tibial shaft. Five patients were imaged using a 1.5 Tesla MR unit. Axial, sagittal and coronal T1 and T2-weighted or fat suppressed proton density fast spin echo images were obtained in all but one patient. One patient was imaged using a 0.5 Tesla MR unit with axial and coronal T1- and T2-weighted sequences. Initial conventional radiographs seen at clinical presentation were interpreted as normal in all cases. Two patients underwent radionuclide bone scan, and one patient was imaged with CT prior to MR imaging. In each instance, MR imaging demonstrated linear marrow signal abnormalities orientated along the long axis of the tibial shaft. Endosteal and periosteal callus was identified on axial images. In all cases, MR imaging clearly demonstrated a fracture extending through one cortex with abnormal signal in both the marrow cavity as well as adjacent soft tissues indicating edema. (orig./MG)

  1. Effects of 1alpha-hydroxycholecalciferol on growth performance, parameters of tibia and plasma, meat quality, and type IIb sodium phosphate cotransporter gene expression of one- to twenty-one-day-old broilers.

    Science.gov (United States)

    Han, J C; Yang, X D; Zhang, T; Li, H; Li, W L; Zhang, Z Y; Yao, J H

    2009-02-01

    This experiment was conducted to investigate the effects of 1alpha-hydroxycholecalciferol (1alpha-OH D3) on the growth performance, tibia and plasma parameters, nutrient utilization, meat quality of the breast and thigh, and type IIb sodium phosphate cotranspoter gene expression of broilers. A total of 96 males of 1-d-old Arbor Acres broilers were randomly assigned to 8 cages of 12 birds each. Two dietary treatments were applied to 4 cages each. Diet 1 was prepared as the basal diet (nonphytate phosphorus, 0.21%), whereas diet 2 was the basal diet supplemented with 5 microg/kg of 1alpha-OH D3. Results showed that supplementation of the basal diet with 1alpha-OH D3 increased growth performance, tibia ash and strength, plasma inorganic phosphate concentration, utilization of total phosphorus and nonphytate phosphorus, lightness and yellowness of the breast and thigh meat, and intestinal type IIb sodium phosphate cotranspoter mRNA expression, whereas it decreased the shear force and water-holding capacity of the thigh meat. These data suggest that the addition of 1alpha-OH D3 might improve growth performance, tibia development, and meat quality in 1- to 21-d-old broilers by increasing the absorption and retention of phosphorus.

  2. O olhar dos adolescentes em conflito com a lei sobre o contexto social

    Directory of Open Access Journals (Sweden)

    Jacoby, Márcia

    2006-01-01

    Full Text Available Este artigo originou-se da pesquisa intitulada “Adolescentes privados de liberdade: mapeando trajetórias de conflito com a lei”. Discute-se, aqui, o contexto em que os adolescentes que cometem atos infracionais estão inseridos, especialmente quanto aos aspectos sociais. São analisados relatos de jovens, coletados através de entrevistas, sobre os fatores que eles julgam contributivos para que cometessem delitos: uso de drogas, vida na comunidade, grupo de amigos, relação com o trabalho, família e escola. Reflete-se sobre as condições de vida desses sujeitos, destacando-se a necessidade da garantia dos seus direitos. Como conclusão, afirma-se a importância do investimento nas políticas sociais, principalmente as relacionadas à convivência familiar e comunitária e à educação. This article has derived from the research named “Adolescents deprived of freedom: tracing law-conflicting trajectories”. Herein, the discussion is about the context where the adolescents, who perpetrate infraction acts, are inserted, especially as to social aspects. An analysis is made of the youngsters reports, collected upon interviews, about the factors that they consider contributions for perpetrating law violations: use of drugs, life in the community, group of friends, relations with the work, the family and the school. Reflection takes place about the life’s conditions of these persons, by pointing out the need of guaranteeing their rights. The drawn conclusion affirms the importance of investing on social policies, mainly those regarding family and community life and education.

  3. Extraction of Dihydroquercetin<em> em>from <em>Larix gmeliniem>i> em>with Ultrasound-Assisted and Microwave-Assisted Alternant Digestion

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    Yuangang Zu

    2012-07-01

    Full Text Available An ultrasound and microwave assisted alternant extraction method (UMAE was applied for extracting dihydroquercetin (DHQ from <em>Larix gmeliniem>i> wood. This investigation was conducted using 60% ethanol as solvent, 1:12 solid to liquid ratio, and 3 h soaking time. The optimum treatment time was ultrasound 40 min, microwave 20 min, respectively, and the extraction was performed once. Under the optimized conditions, satisfactory extraction yield of the target analyte was obtained. Relative to ultrasound-assisted or microwave-assisted method, the proposed approach provides higher extraction yield. The effect of DHQ of different concentrations and synthetic antioxidants on oxidative stability in soy bean oil stored for 20 days at different temperatures (25 °C and 60 °C was compared. DHQ was more effective in restraining soy bean oil oxidation, and a dose-response relationship was observed. The antioxidant activity of DHQ was a little stronger than that of BHA and BHT. Soy bean oil supplemented with 0.08 mg/g DHQ exhibited favorable antioxidant effects and is preferable for effectively avoiding oxidation. The <em>L. gmeliniiem> wood samples before and after extraction were characterized by scanning electron microscopy. The results showed that the UMAE method is a simple and efficient technique for sample preparation.

  4. A new algorithm for finite element simulation of wedge osteotomies in voxel models with application to the tibia

    Directory of Open Access Journals (Sweden)

    Thomas Pressel

    2010-01-01

    Full Text Available Thomas Pressel1, Markus D Schofer1, Jörg Meiforth2, Markus Lengsfeld1, Jan Schmitt11Department of Orthopaedics and Rheumatology, University Hospital Marburg, Marburg, Germany; 2St. Vincentius Kliniken, Klinik für Orthopädie, Karlsruhe, GermanyAbstract: Wedge osteotomies are used to correct bone deformities or change the forces acting on bones and joints in the human body. Finite element models can be employed to simulate the effect of such operations on the bone or adjacent joints. The automatic generation of voxel models derived from computed tomography data is a common procedure, but the major drawback of the method lies in irregular model surfaces. Therefore, the concept of hybrid models combining voxel and tetrahedron meshes was developed. We present an algorithm to simulate wedge osteotomies in voxel models by adding tetrahedron to brick elements. Applicability of the procedure was tested by performing a parametric study using a tibia model created from computed tomography scans taken in vivo applying individually calculated force conditions. The osteotomy angle largely affected maximum stresses: at 2.5 degrees valgus, the stresses at the medial and lateral tibial plateau were equivalent, while increasing valgus angles reduced medial stresses. The algorithm described here is an improvement of former mesh generation procedures and allows a better representation of the geometry at the osteotomy level. The algorithm can be used for all wedge osteotomies and is not limited to the tibia.Keywords: finite element/osteotomy/voxel/pre-operative planning, simulation, mesh algorithm

  5. How <em>Varroa> Parasitism Affects the Immunological and Nutritional Status of the Honey Bee, <em>Apis melliferaem>

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    Katherine A. Aronstein

    2012-06-01

    Full Text Available We investigated the effect of the parasitic mite <em>Varroa destructorem> on the immunological and nutritional condition of honey bees, <em>Apis melliferaem>, from the perspective of the individual bee and the colony. Pupae, newly-emerged adults and foraging adults were sampled from honey bee colonies at one site in S. Texas, USA. <em>Varroa>‑infested bees displayed elevated titer of Deformed Wing Virus (DWV, suggestive of depressed capacity to limit viral replication. Expression of genes coding three anti-microbial peptides (<em>defensin1, abaecin, hymenoptaecinem> was either not significantly different between <em>Varroa>-infested and uninfested bees or was significantly elevated in <em>Varroa>-infested bees, varying with sampling date and bee developmental age. The effect of <em>Varroa> on nutritional indices of the bees was complex, with protein, triglyceride, glycogen and sugar levels strongly influenced by life-stage of the bee and individual colony. Protein content was depressed and free amino acid content elevated in <em>Varroa>-infested pupae, suggesting that protein synthesis, and consequently growth, may be limited in these insects. No simple relationship between the values of nutritional and immune-related indices was observed, and colony-scale effects were indicated by the reduced weight of pupae in colonies with high <em>Varroa> abundance, irrespective of whether the individual pupa bore <em>Varroa>.

  6. MINIMAL INVASIVE PLATE OSTEOSYNTHESIS- AN EFFECTIVE TREATMENT METHOD FOR DISTAL TIBIA INTRAARTICULAR (PILON FRACTURES- AN 18 MONTHS FOLLOW UP

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    Saket Jati

    2016-12-01

    Full Text Available BACKGROUND Tibial pilon fracture though requires operative treatment is difficult to manage. Conventional osteosynthesis is not suitable, because distal tibia is subcutaneous bone with poor vascularity. Closed reduction and Minimally Invasive Plate Osteosynthesis (MIPO for distal tibia has emerged as an alternative treatment option because it respects fracture biology and haematoma and also provides biomechanically stable construct. The aim of the study is to evaluate the results of minimally invasive plate osteosynthesis using locking plates in treating tibial pilon fractures in terms of fracture union, restoration of ankle function and complications. MATERIALS AND METHODS 30 patients with closed tibial pilon fractures (Ruedi and Allgower type I (14, type II (13, type III (3 treated with MIPO with Locking Compression Plates (LCP were prospectively followed for average duration of 18 months. RESULTS Average duration of injury-hospital and injury-surgery interval was as 12.05 hrs. and 3.50 days, respectively. All fractures got united with an average duration of 20.8 weeks (range 14-28 weeks. Olerud and Molander score was used for evaluation at 3 months, 6 months and 18 months. One patient had union with valgus angulation of 15 degrees, but no nonunion was found. CONCLUSION The present study shows that MIPO with LCP is an effective treatment method in terms of union time and complications rate for tibial pilon fracture promoting early union and early weight bearing.

  7. Controle postural e atividade física em crianças eutróficas, com sobrepeso e obesas

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    Jessica Caroliny de Jesus Neves

    protetor em crianças eutróficas e com sobrepeso. Portanto, programas de atividade física devem ser inseridos nas escolas, já que têm caráter preventivo quanto à obesidade e ao sedentarismo.

  8. [Paraosteal osteosarcoma of the tibia treated with the OSS prosthesis. Case report].

    Science.gov (United States)

    Ochoa-Cázares, S; Mancilla, J A; Cuadra-Castillo, M

    2014-01-01

    Parosteal osteosarcoma originates on the surface of long bones and spares the medullary canal. Its peak incidence occurs in the third decade of life and it is more frequent in females than males. The juxtacortical variety of parosteal osteosarcoma is one of the most common ones, accounting for 1-6% of all osteosarcomas. The classical radiographic appearance of osteosarcoma includes high ossification density and a lobed mass, usually in the posterior aspect of the distal femur, sparing the medullary canal. We report herein the case of a 31 year-old male patient with a clinical picture that included left knee pain and who was seen as outpatient. He was started on treatment for enbloc resection of the tumor and implantation of the OSS (Orthopedic Salvage System) prosthesis. Treatment consisted of broad resection of the proximal tibia, of approximately 14 cm, as well as the implantation of a nonconventional modular tibial prosthesis. Both the radiographic and the clinical results were good and appropriate at the three week follow up.

  9. Case report 390: Tuberculous pseudotumor of the proximal end of the right tibia without obvious synovial involvement

    Energy Technology Data Exchange (ETDEWEB)

    Abdelwahab, I.F.; Present, D.A.; Klein, M.J.

    1986-11-01

    A case of osseous tuberculosis has been presented in a young black man who was known to be an addict to cocaine. An osteolytic lesion involved the proximal end of the tibia, being eccentric and subarticular in location. The knee joint spaces were intact, suggesting that no obvious involvement of the cartilages was present. Thus, neoplastic lesions such as chondroblastoma and giant cell tumor were considered in the differential diagnosis of the lesion which appeared to be benign radiologically. The lesion proved to be tuberculous in nature, with intact knee joint cartilages. A diagnosis of tuberculous 'pseudotumor' might be used aptly. (orig./SHA).

  10. Desenvolvimento e otimização de sistema de elevação para linha de montagem no setor auto

    OpenAIRE

    Manta, Catarina Ribeiro

    2015-01-01

    A presente dissertação expõe o processo de estudo e otimização de um elevador de colunas, desenvolvido pela RARI, S.A. para uma unidade fabril da indústria automóvel cujo funcionamento apresentou, desde o início de operação, graves problemas de estabilidade, o que por sua vez comprometeu o correto funcionamento da linha onde estava inserido. A falta de rigidez e consequentemente instabilidade da estrutura do elevador, foram ana-lisadas neste trabalho do ponto de vista dinâmico, tendo em co...

  11. PROVERBIALITÉ ET TRADUCTION: LA DICHOTOMIE FORME-SENS / PROVERBIALIDADE E TRADUÇÃO: A DICOTOMIA FORMA-SENTIDO

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    Christine Michaux

    2018-02-01

    Full Text Available RESUMÉ Dans cet article, nous proposons une analyse du proverbe en tant qu’énoncé formellement fixe, et sémantiquement dépendant du texte dans lequel il est cité. Ces reflexiones sont issues de notre pratique de la traduction des proverbes. RESUMO Este artigo se propõe a analisar o provérbio como um enunciado formalmente fixo, mas semanticamente dependente do texto em que estiver inserido, evidências que se originaram de reflexões no exercício da tradução proverbial.

  12. Trophic systems and chorology: data from shrews, moles and voles of Italy preyed by the barn owl / Sistemi trofici e corologia: dati su <em>Soricidae>, <em>Talpidae> ed <em>Arvicolidae> d'Italia predati da <em>Tyto albaem> (Scopoli 1769

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    Longino Contoli

    1986-12-01

    Full Text Available Abstract In small Mammals biogeography, available data are up to now by far too scanty for elucidate the distribution of a lot of taxa, especially with regard to the absence from a given area. In this respect, standardized quantitative sampling techniques, like Owl pellets analysis can enable not only to enhance faunistic knowledges, but also to estimate the actual absence probability of a given taxon "m", lacking from the diet of an individual raptor. For the last purpose, the relevant frequencies of "m" in the other ecologically similar sites of the same raptor species diets are averaged ($f_m$ : the relevant standard error (multiplicated by a coefficient, according to the desired degree of accuracy, in relation of the integral of probabilities subtracted ($overline{F}_m - a E$: then, the probability that a single specimen is not pertaining to "m" is obtained ($P_0 = 1 - F_m + a E$; lastly, the desiderate accuracy probability ($P_d$ is chosen. Now, "$N_d$" (the number of individuals of all prey species in a single site needed for obtain, with the desired probability, a specimen at least of "m" is obtained through $$N = frac{ln P_d}{ln P_0}$$ Obviously, every site-diet with more than "N" preyed individuals and without any "i" specimen is considered to be lacking of such taxon. A "usefulness index" for the above purposes is outlined and checked about three raptors. Some exanples about usefulness of the Owl pellet analysis method in biogeography are given, concerning <em>Tyto albaem> diets in peninsular Italy about: - <em>Sorex minutusem>, lacking in some quite insulated areas; - <em>Sorex araneusem> (sensu stricto, after GRAF et al., 1979, present also in lowland areas in Emilia-Romagna; - <em>Crocidura suaveolensem> and - <em>Suncus etruscusem>, present also in the southermost part of Calabria (Reggio province; - <em>Talpa caecaem>, present also in the Antiapennines of Latium (Cimini mounts; - <em>Talpa romanaem

  13. The Effect of Calcium Source in Laying Hen Diet on Egg and Tibia Bone Characteristics

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    Elsayed, M.A.; Basuony, H.A.; Hatab, M.H.

    2014-01-01

    One hundred and twenty, 37-week-old Lohmann strain layers were used in the current study to evaluate the effect of using ground, sterilized chicken eggshell (ES) as calcium (Ca) source in their diets on the productive performance, egg and eggshell quality, serum Ca and inorganic P concentrations and bone mineralization. Feed and water ad libitum were provided and hens were kept under 16:8 hrs light:dark cycle. Birds were randomly divided into 3 groups (GP), 1, was a control group fed a layer diet containing finely ground limestone as the Ca source. 2 was fed a layer diet that contained a combination of 50% limestone and 50% ground eggshell (50% ES) as the Ca source, whereas group 3 received a layer diet containing 100% ground eggshell (100% ES) as the Ca source in the diet. After 2 wk of acclimation, the birds were fed the experimental diets for 6 wk, initial and final body weights (BW) and feed intake was recorded. Eggs production was expressed as a percentage of hen-day egg production, egg weight and the internal egg quality were measured. Serum Ca, P concentrations, Ca:P ratio and aldosterone level were determined. Finally, tibia weight, length and its contents of Ca, P concentrations were measured. Results of this study indicated that, there was no significant effect of dietary treatment on BW and feed consumption. Replacing limestone in the current study diet with ground, sterilized eggshell had no any significant effect on egg production, egg weight, eggshell quality and tibia characteristics among between groups. Finally, there were no significant effect for treatment on blood hematocrit, total serum Ca, P concentrations, Ca:P ratio and aldosterone level. It is concluded that hatchery waste, as chicken egg shells, can be used as the Ca source in layer diets without an adverse effect on BW, feed consumption, egg weight, egg production, egg and eggshell quality, serum Ca concentration and bone characteristics

  14. A randomised prospective study of two different combined internal and external fixation techniques for distal tibia shaft fractures.

    Science.gov (United States)

    Sun, Liao-Jun; Yu, Xian-Bin; Dai, Cheng-Qian; Hu, Wei; Guo, Xiao-Shan; Chen, Hua

    2014-12-01

    External fixation combined with limited open reduction and internal fixation (EF + LORIF) is a well-accepted and effective method for distal tibia shaft fractures, but it was also related to complications. The objective of this study was to compare external fixation combined with closed reduction and internal fixation (EF + CRIF) with EF + LORIF in the treatment of distal tibia shaft fractures, and explore the benefits and defects of these two techniques. Fifty-six patients were randomised to operative stabilisation either by an external fixator combined with two closed titanium elastic nails or by external fixation combined with limited open reduction and internal fixation. Pre-operative variables included the patients’ age, sex, the affected side, cause of injury, Tscherne classification of soft tissue injury, fracture pattern, and time from injury to surgery. Peri-operative variables were the operating time and the radiation time. Postoperative variables were wound problems and other complications, union time, time of recovery to work, the functional American Orthopaedic Foot and Ankle surgery (AOFAS) score. There was no significant difference in the mean operating time (72.6 ± 11.5 vs. 78.5 ± 16.4 min, P = 0.125), the time to union (21.2 ± 11.0 vs. 22.5 ± 12.3 weeks, P = 0.678), the time of recovery to work (25.0 ± 14.5 vs. 26.4 ± 13.6 weeks, P = 0.711), pin track infection (3/28 vs. 4/28, P = 1.000), delayed union (2/28 vs. 3/28, P = 1.000), pain (38.3 ± 1.6 vs. 38.7 ± 1.5, P = 0.339), function (44.4 ± 6.0 vs. 45.0 ± 5.5, P = 0.698), and total AOFAS scores (91.5 ± 7.4 vs. 93.4 ± 6.8, P = 0.322) between the two groups. However, the mean radiation time was longer in the EF + CRIF group than in the EF + LORIF group (2.0 ± 1.2 vs. 0.3 ± 0.1 min, P alignment was obtained in 50 patients (22 in EF + CRIF vs. 28 in EF + LORIF, P = 0.023). Two cases with EF + CRIF had a 6 degrees of recurvatum deformity and four had 6–9 degrees of valgus deformity

  15. Effect of β-hydroxy-β-methylbutyrate (HMB) administration on volumetric bone mineral density, and morphometric and mechanical properties of tibia in male turkeys.

    Science.gov (United States)

    Tatara, M R

    2009-12-01

    This study was performed to investigate the effects of β-hydroxy-β-methylbutyrate (HMB) administration on skeletal system properties in turkeys. Thirty-two males were randomly divided into two groups at the age of 35 days of life. The first group included control turkeys (n = 16) treated with placebo, while the second group of birds (HMB group; n = 16) was administered orally with calcium salt of HMB during the last 15 weeks of life. The turkeys were sacrificed at the age of 20 weeks and tibia was isolated for analysis of bone geometrical parameters, volumetric bone mineral density (vBMD) and mechanical properties. Furthermore, assessment of free amino acid concentrations in plasma was performed. The results showed a 6.3% increase of vBMD of tibia in response to HMB treatment (p HMB-treated turkeys by 21.3%, 49.0%, 27.2% and 28.3%, respectively (p ≤ 0.01). β-hydroxy-β-methylbutyrate administration increased plasma concentrations of proline,glutamate, leucine, isoleucine, valine, alanine, aspartate, phenylalanine and cysteic acid (p HMB improves vBMD, and geometrical and mechanical properties of skeletal system in turkeys, and that these effects are associated with improved plasma amino acid concentrations.

  16. COMPONENTE ARBUSTIVO-ARBÓREO DE MATAS CILIARES EM RESTAURAÇÃO E REMANESCENTES NATURAIS INSERIDOS EM MATRIZ SILVÍCOLA, RIO NEGRINHO, SC

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    Eliziane Carla Scariot

    2014-01-01

    Full Text Available The aim of this study was to analyze the shrubby tree component in riparian corridors in restoration process and natural remainders in a matrix forestry. We identified the richness, diversity, dispersal and pollination syndromes of the individuals and estimate the floristic similarity. The study was conducted at the producing farm of Pinus spp. wood Santa Alice, located in Rio Negrinho city, Santa Catarina state, Brazil. We adopted the center-quarter method for survey the shrubby tree component in four sample groups: CA (advanced stage of riparian corridors vegetation, CR (riparian corridors in restoration, MA (advanced stage of natural remaining, MI (intermediate stage of natural remaining. We found the highest richness and diversity index in MA and CR. Regarding the number of individuals, the dispersal and pollination syndromes predominant in all sample groups were zoochory and zoophilia. CR and CA had the highest percentage of floristic similarity while MA and MI did not form clusters. The sample group CR has composition, richness and diversity more similar to CA. This indicates that the restoration of riparian zones has conditions to rescue the components and the interactions of an ecological community.

  17. A “mão invisível” tardia no Design

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    Marcos Antonio Esquef Maciel

    2010-05-01

    Full Text Available O presente texto busca expor os efeitos da lógica cultural do capitalismo tardio, trazidos para o campo do Design, tanto em sua base profissional, quanto na formação educacional, no tocante às questões que norteiam o sujeito tornado fragmentado e com visões também fragmentadas, inserido nessa lógica de sociedade do espetáculo, da pujança de imagens, que produzem e que se enveredam pelo mundo da cultura, da arte, da técnica e da imaginação humana. Procura enfatizar o processo de formação do designer em meio ao domínio do reino da mercadoria e como produtor de valor simbólico ao produto, imerso em uma fragmentação característica da experiência pós-moderna.

  18. Incidence of infection following internal fixation of open and closed tibia fractures in India (INFINITI): a multi-centre observational cohort study.

    Science.gov (United States)

    Doshi, Prakash; Gopalan, Hitesh; Sprague, Sheila; Pradhan, Chetan; Kulkarni, Sunil; Bhandari, Mohit

    2017-04-14

    Trauma is a major public health problem, particularly in India due to the country's rapid urbanization. Tibia fractures are a common and often complicated injury that is at risk of infection following surgical fixation. The primary objectives of this cohort study were to determine the incidence of infection within one year of surgery and to describe the distribution of infections by location and time of diagnosis for tibia fractures in India. We conducted a multi-center, prospective cohort study. Patients who presented with an open or closed tibia fracture treated with internal fixation to one of the participating hospitals in India were invited to participate in the study. Participants attended follow-up visits at 3, 6, and 12 months post-surgery, where they were assessed for infections, fracture healing, and health-related quality of life as measured by the EurQol-5 Dimensions (EQ-5D). Seven hundred eighty-seven participants were included in the study and 768 participants completed the 12 month follow-up. The overall incidence of infection was 2.9% (23 infections). The incidence of infection was 1.6% (10 infections) in closed and 8.0% (13 infections) in open fractures. There were 7 deep and 16 superficial infections, with 5 being early, 7 being delayed, and 11 being late infections. Intra-operative antibiotics were given to 92.1% of participants and post-operative antibiotics were given to 96.8% of participants. Antibiotics were prescribed for an average of 8.3 days for closed fractures and 9.1 days for open fractures. Infected fractures took significantly longer to heal, and participants who had an infection had significantly lower EQ-5D scores. The incidence of infection within this cohort is similar to those seen in developed countries. The duration of prophylactic antibiotic use was longer than standard practice in North America, raising concern for the potential development of antibiotic resistant microbes within Indian orthopaedic settings. Future

  19. Double-plating of ovine critical sized defects of the tibia: a low morbidity model enabling continuous in vivo monitoring of bone healing

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    Pearce Alexandra

    2011-09-01

    Full Text Available Abstract Background Recent studies using sheep critical sized defect models to test tissue engineered products report high morbidity and complications rates. This study evaluates a large bone defect model in the sheep tibia, stabilized with two, a novel Carbon fibre Poly-ether-ether-ketone (CF-PEEK and a locking compression plate (LCP which could sustain duration for up to 6 month with an acceptable low complication rate. Methods A large bone defect of 3 cm was performed in the mid diaphysis of the right tibia in 33 sheep. The defect was stabilised with the CF - PEEK plate and an LCP. All sheep were supported with slings for 8 weeks after surgery. The study was carried out for 3 months in 6 and for 6 months in 27 animals. Results The surgical procedure could easily be performed in all sheep and continuous in vivo radiographic evaluation of the defect was possible. This long bone critical sized defect model shows with 6.1% a low rate of complications compared with numbers mentioned in the literature. Conclusions This experimental animal model could serve as a standard model in comparative research. A well defined standard model would reduce the number of experimental animals needed in future studies and would therefore add to ethical considerations.

  20. Endoprótese não cimentada no tratamento de tumor de células gigantes de tíbia, 18 anos de evolução Cementless endoprosthesis in the treatment of giant cell tumor of the tibia, eighteen years of evolution

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    Glauco Pauka Mello

    2010-01-01

    Full Text Available Trata-se de um relato de caso de tumor de células gigantes de tíbia proximal justarticular com fratura patológica. Paciente do sexo feminino, apresentando dor e aumento de volume local após ocorrência de queda da própria altura. Foi submetida ao exame clínico, ao estudo radiográfico e biópsia por punção. Feito diagnóstico de tumor de células gigantes. A paciente foi então tratada com ressecção tumoral e utilização de endoprótese não convencional parcial de tíbia com preservação da superfície articular do platô tibial. A paciente evoluiu com melhora dos sintomas e manutenção da função articular do membro operado, ausência de recidiva e complicações, sem necessidade de reintervenções cirúrgicas em um seguimento de 18 anos.A case report of a giant cell tumor of the proximal tibia justarticular with a pathological fracture. A female patient presenting pain and increase of local volume after a falling incident from an unelevated height. She underwent clinical examination, to radiographic study, and a puncture biopsy. A diagnosis of giant cell tumor was made. The patient was then treated with tumor resection and use of an unconventional partial endoprosthesis of the tibia with preservation of the surface of the tibial plateau. The patient evolved with improvement of symptoms and maintenance of joint function of the operated limb, absence of recurrence and complications, without necessity of reoperation during 18 years of follow-up.

  1. Proximate Composition, Nutritional Attributes and Mineral Composition of <em>Peperomia> <em>pellucida> L. (Ketumpangan Air Grown in Malaysia

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    Maznah Ismail

    2012-09-01

    Full Text Available This study presents the proximate and mineral composition of <em>Peperomia> <em>pellucida> L., an underexploited weed plant in Malaysia. Proximate analysis was performed using standard AOAC methods and mineral contents were determined using atomic absorption spectrometry. The results indicated <em>Peperomia> <em>pellucida> to be rich in crude protein, carbohydrate and total ash contents. The high amount of total ash (31.22% suggests a high-value mineral composition comprising potassium, calcium and iron as the main elements. The present study inferred that <em>Peperomia> <em>pellucida> would serve as a good source of protein and energy as well as micronutrients in the form of a leafy vegetable for human consumption.

  2. Evaluation of Antioxidant Activities of Aqueous Extracts and Fractionation of Different Parts of <em>Elsholtzia em>ciliata>

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    Yuangang Zu

    2012-05-01

    Full Text Available The aim of this study was to investigate the antioxidant and free-radical scavenging activity of extract and fractions from various parts of <em>Elsholtzia ciliataem>. The inflorescences, leaves, stems and roots of <em>E. ciliataem> were extracted separately and two phenolic component enrichment methods: ethyl acetate-water liquid-liquid extraction and macroporous resin adsorption-desorption, were adopted in this study. The antioxidant activities of water extracts and fractions of <em>E. ciliataem> were examined using different assay model systems <em>in vitroem>. The fraction root E (purified by HPD300 macroporous resin exhibited the highest total phenolics content (497.2 ± 24.9 mg GAE/g, accompanied with the highest antioxidant activity against various antioxidant systems <em>in vitroem> compared to other fractions. On the basis of the results obtained, <em>E. ciliataem> extracts can be used potentially as a ready accessible and valuable bioactive source of natural antioxidants.

  3. The effects of knee immobilization on marrow adipocyte hyperplasia and hypertrophy at the proximal rat tibia epiphysis.

    Science.gov (United States)

    Trudel, Guy; Uhthoff, Hans K; Solanki, Sanjay; Laneuville, Odette

    2017-09-01

    Marrow adipose deposition is observed during aging and in association with extended periods of immobility. The objective of this study was to determine the contribution of adipocyte hypertrophy and hyperplasia to bone marrow fat deposition induced by immobilization of the rat knee joint for 2, 4, 16 or 32 weeks. Histomorphometric analyses compared immobilized to sham-operated proximal tibia from age and gender matched rats to assess the contribution of aging and duration of immobilization on the number and size of marrow adipocytes. Results indicated that marrow adipose tissue increased with the duration of immobilization and was significant larger at 16 weeks compared to the sham-operated group (0.09956±0.13276mm 2 vs 0.01990±0.01100mm 2 , p=0.047). The marrow adipose tissue was characterized by hyperplasia of adipocytes with a smaller average size after 2 and 4 weeks of immobilization (at 2 weeks hyperplasia: 68.86±33.62 vs 43.57±24.47 adipocytes/mm 2 , p=0.048; at 4 weeks hypotrophy: 0.00036±0.00019 vs 0.00046±0.00023mm 2 , p=0.027), and by adipocyte hypertrophy after 16 weeks of immobilization (0.00083±0.00049 vs 0.00046±0.00028mm 2 , p=0.027) compared to sham-operated. Both immobilized and sham-operated groups showed marrow adipose conversion with age; immobilized (p=0.008; sham: p=0.003). Overall, fat deposition in the bone marrow of the proximal rat tibia epiphysis and induced by knee joint immobilization was characterized by hyperplasia of small adipocytes in the early phase and by adipocyte hypertrophy in the later phase. Mediators of marrow fat deposition after immobilization and preventive countermeasures need to be investigated. Copyright © 2017 Elsevier GmbH. All rights reserved.

  4. Plexiform neurofibroma causing an ossifying subperiosteal haematoma: a rare case in the tibia of an 11-year-old girl

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    Lavell, Anton [Fiona Stanley Hospital, Department of Radiology, Murdoch, WA (Australia); Jones, Christopher W. [Perth Orthopaedic Institute, Nedlands, WA (Australia); Sir Charles Gairdner Hospital, Department of Orthopaedic Surgery, Nedlands, WA (Australia); Princess Margaret Hospital, Subiaco, WA (Australia); Wong, Daniel [PathWest, QEII Medical Centre, Anatomical Pathology, Nedlands, WA (Australia); Counsel, Peter [Princess Margaret Hospital, Department of Radiology, Subiaco, WA (Australia); Perth Radiological Clinic, Mirrabooka, WA (Australia); Carey-Smith, Richard [Sir Charles Gairdner Hospital, Department of Orthopaedic Surgery, Nedlands, WA (Australia); Princess Margaret Hospital, Subiaco, WA (Australia)

    2017-10-15

    Ossifying subperiosteal haematoma is an exceedingly rare manifestation of Neurofibromatosis type 1 (NF-1). We report an interesting case of plexiform neurofibroma causing a rapidly growing tibial mass as a result of subperiosteal haemorrhage, in an 11-year-old girl with previously undiagnosed NF-1. This reflects a precursor of the more mature periosteal ossification seen in cases traditionally termed ''subperiosteal cysts''. A previously well young girl was referred by her general practitioner with an increasingly large, mildly tender, soft lump on the anterior aspect of her right tibia. Plain radiographs demonstrated soft tissue thickening overlying the anterior tibia, without appreciable periosteal ossification. Magnetic resonance imaging (MRI) illustrated a single central fluid-fluid level and periosteal elevation with saucerisation of the anterior tibial cortex and mild surrounding oedema. Histopathology revealed a large plexiform neurofibroma. Interestingly, this was associated with haemorrhagic change and a peripheral rim of florid reactive new bone formation. This unusual presentation was discussed at a multidisciplinary bone and soft tissue tumour meeting, where in combination with the clinical history of cafe au lait spots and positive family history, a consensus diagnosis of NF-1 was made. To date, there have only been limited case reports of this rare pathological process. In summary, this case report accounts an acute presentation of this rare osseous manifestation of NF-1, being the first to clearly demonstrate a timeline of subperiosteal haematoma with subsequent subperiosteal bone proliferation. The clinical reasoning and radiological features for such a presentation are also described. (orig.)

  5. Plexiform neurofibroma causing an ossifying subperiosteal haematoma: a rare case in the tibia of an 11-year-old girl

    International Nuclear Information System (INIS)

    Lavell, Anton; Jones, Christopher W.; Wong, Daniel; Counsel, Peter; Carey-Smith, Richard

    2017-01-01

    Ossifying subperiosteal haematoma is an exceedingly rare manifestation of Neurofibromatosis type 1 (NF-1). We report an interesting case of plexiform neurofibroma causing a rapidly growing tibial mass as a result of subperiosteal haemorrhage, in an 11-year-old girl with previously undiagnosed NF-1. This reflects a precursor of the more mature periosteal ossification seen in cases traditionally termed ''subperiosteal cysts''. A previously well young girl was referred by her general practitioner with an increasingly large, mildly tender, soft lump on the anterior aspect of her right tibia. Plain radiographs demonstrated soft tissue thickening overlying the anterior tibia, without appreciable periosteal ossification. Magnetic resonance imaging (MRI) illustrated a single central fluid-fluid level and periosteal elevation with saucerisation of the anterior tibial cortex and mild surrounding oedema. Histopathology revealed a large plexiform neurofibroma. Interestingly, this was associated with haemorrhagic change and a peripheral rim of florid reactive new bone formation. This unusual presentation was discussed at a multidisciplinary bone and soft tissue tumour meeting, where in combination with the clinical history of cafe au lait spots and positive family history, a consensus diagnosis of NF-1 was made. To date, there have only been limited case reports of this rare pathological process. In summary, this case report accounts an acute presentation of this rare osseous manifestation of NF-1, being the first to clearly demonstrate a timeline of subperiosteal haematoma with subsequent subperiosteal bone proliferation. The clinical reasoning and radiological features for such a presentation are also described. (orig.)

  6. Alternativa quirúrgica en el tratamiento de la osteomielitis aguda posfractura abierta de la tibia: Presentación de un caso

    OpenAIRE

    García Moreiro, Reynol Delfín; Collazo Álvarez, Hilario; Estenoz Esquivel, Juan Carlos; Ayup García, Diana

    2000-01-01

    Se presenta un caso de fractura abierta del tercio inferior de la tibia y el peroné derechos. Como intervención de urgencia se realiza debridamiento y osteosíntesis. Se observa con posterioridad signos necróticos en partes blandas con osteomielitis aguda. Se mantienen todos los cuidados generales necesarios, se le coloca fijador externo RALCA e injerto libre de piel en tejido de granulación; este último proceder resulta infructuoso al persistir los signos anteriormente expuestos. A continuaci...

  7. Allometric and Isometric variations in the Italian <em>Apodemus sylvaticusem> and <em>Apodemus flavicollisem> with respect to the conditions of allopatry and sympatry / Variazioni allometriche e isometriche in <em>Apodemus sylvaticusem> e <em>Apodemus flavicollisem> italiani, rispetto alle condizioni di allopatria e simpatria

    Directory of Open Access Journals (Sweden)

    Giovanni Amori

    1986-12-01

    Full Text Available Abstract In Italy there are two species of <em>Apodemus> (<em>Sylvaemus>: <em>Apodemus sylvaticusem> on the mainland and the main island, and <em>Apodemus flavicollisem> only on the mainland. The trend of some morphometric characters of the skull (incisive foramen length - FI; interorbital breadth = IO; length of palatal bridge = PP; upper alveolar length = $M^1M^3$ was analized and some theoretical models verified for <em>A. sylvaticusem>. If one considers the sympatric population of <em>A. sylvaticusem> and <em>A. flavicollisem> simultaneously the characters PP, IO and $M^1M^3$ appear significantly isometric being directly correlated ($P leq O.O1$, while FI character results allometric with respect to the previous ones, as expected. If one considers the sympatric populations of each of the species separately, the scenario is different. For <em>A. sylvaticusem> only PP and $M^1M^3$ are isometric ($P leq 0.05$. For <em>A. flavicollisem> only $M^1M^3$ and FI appear to be correlated, although not as significantly as for <em>A. sylvaticusem> ($P le 0.05$; one tail. The insular populations of <em>A. sylvaticusem> do not show significant correlations, except for FI and $M^1M^3$ ($P le 0.05$. On the contrary, considering all populations, sympatric and allopatric, of <em>A. sylvaticusem> at the same time are significant correlations ($P le 0.05$ in all combinations of characters, except for those involving the IO. We suggest that the isometric relations in sympatric assemblages are confined within a morphological range available to the genus <em>Apodemus>. In such a space, the two species are split in two different and innerly homogeneous distributions. We found no evidence to confirm the niche variation hypothesis. On the contrary, the variability expressed as SO or CV's appears higher in the sympatric populations than in the allopatric ones, for three of the four characters, confirming previous results

  8. Use of the suprapatellar approach in intramedullary nailing of a multi-fragmentary dislocated tibia fracture with a hypermobile intermediate fragment in a young patient

    Directory of Open Access Journals (Sweden)

    Patrick Haubruck

    2017-01-01

    Full Text Available A case of an adolescent female patient who suffered from first grade open multi-fragment fracture of the tibia (AO42-C2 with a large hypermobile intermediate fragment is presented in this case report. Intramedullary nailing of the tibia remains the treatment of choice despite a high risk of malformation and anterior knee pain especially in multi-fragment fractures. Here the suprapatellar approach as a semiextended nailing technique seems favorable. The specialty in our case was an early change of procedures necessary due to persistent swelling during external fixation based on the hypermobile intermediate fragment. Decision in favor of this surgical technique was conducted in order to achieve beneficial alignment and union while protecting the softtissue despite the hypermobile intermediate fragment and decrease the risk of anterior knee pain. In our case we achieved successful alignment and proper bone healing without any signs of anterior knee pain or limitations in the range of motion of the knee. With this report we would like to recommend the suprapatellar approach as a favorable alternative in intramedullary nailing in this type of fracture also in young patients.

  9. A Novel Apoptosis Correlated Molecule: Expression and Characterization of Protein Latcripin-1 from <em>Lentinula em>edodes> C91–3

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    Min Huang

    2012-05-01

    Full Text Available An apoptosis correlated molecule—protein Latcripin-1 of <em>Lentinula> edodesem> C91-3—was expressed and characterized in <em>Pichia pastorisem> GS115. The total RNA was obtained from <em>Lentinula edodesem> C91–3. According to the transcriptome, the full-length gene of Latcripin-1 was isolated with 3'-Full Rapid Amplification of cDNA Ends (RACE and 5'-Full RACE methods. The full-length gene was inserted into the secretory expression vector pPIC9K. The protein Latcripin-1 was expressed in <em>Pichia pastorisem> GS115 and analyzed by Sodium Dodecylsulfonate Polyacrylate Gel Electrophoresis (SDS-PAGE and Western blot. The Western blot showed that the protein was expressed successfully. The biological function of protein Latcripin-1 on A549 cells was studied with flow cytometry and the 3-(4,5-Dimethylthiazol-2-yl-2,5-Diphenyl-tetrazolium Bromide (MTT method. The toxic effect of protein Latcripin-1 was detected with the MTT method by co-culturing the characterized protein with chick embryo fibroblasts. The MTT assay results showed that there was a great difference between protein Latcripin-1 groups and the control group (<em>p em>< 0.05. There was no toxic effect of the characterized protein on chick embryo fibroblasts. The flow cytometry showed that there was a significant difference between the protein groups of interest and the control group according to apoptosis function (<em>p em>< 0.05. At the same time, cell ultrastructure observed by transmission electron microscopy supported the results of flow cytometry. The work demonstrates that protein Latcripin-1 can induce apoptosis of human lung cancer cells A549 and brings new insights into and advantages to finding anti-tumor proteins.

  10. Epiphyseal injuries of the distal tibia. Does MRI provide useful additional information?; Epiphysenfugenverletzungen der distalen Tibia. Sinnvolle Mehrinformation durch die MRT?

    Energy Technology Data Exchange (ETDEWEB)

    Iwinska-Zelder, J.; Schmidt, S.; Ishaque, N.; Klose, K.J.; Hoppe, M. [Marburg Univ. (Germany). Abt. fuer Strahlendiagnostik; Schmitt, J.; Gotzen, L. [Marburg Univ. (Germany). Medizinisches Zentrum fuer Operative Medizin

    1999-01-01

    Plain film radiography often underestimates the extent of injury in children with epiphyseal fracture. Especially Salter-Harris V fractures (crush fracture of the epiphyseal plate) are often primarily not detected. MRI of the ankle was performed in 10 children aged 9-17 (mean 14) years with suspected epiphyseal injury using 1.0-T Magnetom Expert. The fractures were classified according to the Salter-Harris-Rang-Odgen classification and compared with the results of plain radiography. In one case MRI could exclude epiphyseal injury; in four cases the MRI findings changed the therapeutic management. The visualisation of the fracture in three orthogonal planes and the possibility of detection of cartilage and ligamentous injury in MR imaging makes this method superior to conventional radiography and CT. With respect to radiation exposure MRI instead of CT should be used for the diagnosis of epiphyseal injuries in children. (orig.) [Deutsch] Die konventionelle Roentgendiagnostik unterschaetzt haeufig das Ausmass der kindlichen Extremitaetenfrakturen mit Epiphysenbeteiligung (Typ Salter-Harris). Insbesondere werden die Kompressionsfrakturen der Wachstumsfuge (Salter-Harris V) primaer haeufig nicht erkannt. Prospektiv wurden 10 Kinder im Alter von 9-17 Jahren (Durchschnittsalter = 14 J.) mit Verdacht auf eine epiphysaere Fraktur der distalen Tibia magnetresonanztomographisch (1.0-Tesla Magnetom Expert), untersucht. Die MRT-Ergebnisse wurden auf der Basis der Klassifikation nach Salter-Harris-Rang-Odgen mit den konventionellen Roentgenbildern verglichen. In einem Fall, bei einem 15jaehrigen Patienten, gelang durch die MRT der Ausschluss einer epiphysaeren Verletzung. In 7 Faellen fuehrte der MRT-Einsatz zu einer Aenderung der Klassifikation nach Salter-Harris. Hieraus resultierte bei 4 Patienten ein Therapiewechsel. Da Frakturen, die sie begleitenden Knorpellaesionen und ligamentaere Verletzungen multiplanar dargestellt werden koennen, weist die MRT deutliche Vorteile

  11. Changes in bone mineral density of the proximal tibia after uncemented total knee arthroplasty. A prospective randomized study

    DEFF Research Database (Denmark)

    Winther, Nikolaj; Jensen, Claus Lindkær; Petersen, Morten Bøje

    2016-01-01

    arthroplasty (TKA) using a tibial tray with this novel coating compared to a well-proven standard porous coated (PPS) tibial tray. MATERIALS: Sixty patients scheduled for TKA were randomized to receive either a Regenerex (n = 31) or a PPS tibial component (n = 29). Changes in bone mineral density (BMD......) of the proximal tibia were measured at three, six, 12 and 24 months by dual-energy X-ray absorptiometry (DEXA). RESULTS: In the lateral region (ROI 3), a significant increase in BMD was seen in both groups at three, six, and 12 months after surgery. The relative increase at 12 months was 8.1 % (P = 0...

  12. Rugas e pneuzinhos, que mal tem? O discurso da beleza fora dos padrões na publicidade

    Directory of Open Access Journals (Sweden)

    Nadezhda Bezerra Batista

    2010-12-01

    Full Text Available O presente artigo tem o intuito de mostrar, através da apresentação de anúncios dasempresas de cosméticos Natura e Dove que  o discurso publicitário reflete e refrata a sociedade em que esta inserido para se tornar ainda mais sedutor e mais afinado com seu público-alvo. A partir de seus anúncios  veiculados nas décadas de 90 (Natura e 2000 (Dove, cada empresa, a seu tempo, se mostra em sintonia com os anseios de suas consumidoras, abrindo caminho para uma valorização e fidelização às suas marcas. Para atingirmos nosso objetivo nos fundamentaremos nas reflexões de Mikhail Bakhtin e Norman Fairclough. 

  13. Bone response to collagenized xenografts of porcine origin (mp3(®) ) and a bovine bone mineral grafting (4BONE(™) XBM) grafts in tibia defects: experimental study in rabbits.

    Science.gov (United States)

    Calvo-Guirado, José Luis; Aguilar-Salvatierra, Antonio; Ramírez-Fernández, Maria P; Maté Sánchez de Val, José E; Delgado-Ruiz, Rafael Arcesio; Gómez-Moreno, Gerardo

    2016-08-01

    This study aimed to carry out the evaluation of bone response of new bone formation to two different xenografts (bovine and porcine) biomaterials inserted in rabbit tibiae. The study used a total of 20 male New Zealand albino rabbits. They received a total of 40 grafts in the proximal metaphyseal areas of both tibiae. Two biomaterials were evaluated: 20 porcine xenografts, as a bone granulate (OsteoBiol(®) MP3(®) ; Tecnoss srl, Giaveno, Italy), were placed in the proximal metaphyseal area of the right tibia, 20 anorganic bovine bone mineral grafting (4BONE(™) XBM, MIS Implants Inc., BARLEV, Israel) were placed in the left tibia. Following graft insertion, the animals were sacrificed in two groups of 10 animals, after 1 and 4 months, respectively. For each group, biomaterials were analyzed: newly formed bone, residual graft materials and the connective tissue. Histomorphometric, EDX analysis and element mapping were performed at 1 and 4 months after graft insertion. At 4 months after treatment, the bone defects displayed radiological images that showed complete repair of osseous defects. Histomorphometric evaluation showed that for the porcine xenograft, the study averages for newly formed bone represented 84.23 ± 2.9%, while bovine matrix was 79.34 ± 2.1%. For residual graft material, the porcine biomaterial had 11.23 ± 1.7% and the bovine graft 31.56 ± 2.3%. Finally, the connective tissue for MP3 was 10.33 ± 1.8%, while for the 4BONE(™) XBM we obtained 14.34 ± 2.9%. Element analysis revealed higher percentages of Ca (54 ± 9%) and P (35 ± 6%) in the group B than group A and control group (P MP3 material; this supports new bone formation, creates a bridge between borders, and facilitates bone ingrowth in both biomaterials. Furthermore, this study observed partial dissolution of the mineral phase of four bone graft and complete resorption of porcine MP3 biomaterial and its incorporation into the surrounding bone. Depending on

  14. Management of knee rheumatoid arthritis and tibia nonunion with one-stage total knee arthroplasty and intramedullary nailing: A report of two cases

    Directory of Open Access Journals (Sweden)

    Fahri Erdogan

    2018-01-01

    Full Text Available Total knee arthroplasty (TKA is a surgical procedure which is widely used in the treatment of gonarthrosis secondary to rheumatoid arthritis (RA. The incidence of stress fractures in tibia in the patients with RA is higher compared to normal patients. In this study, we report two cases of TKA and intramedullary nailing in RA patients with severe knee arthritis and tibial nonunion. Both patients had a satisfactory clinical outcome with radiological healing of the tibial fracture.

  15. Momentos em freios e em embraiagens

    OpenAIRE

    Mimoso, Rui Miguel Pereira

    2011-01-01

    Dissertação para obtenção do Grau de Mestre em Mestrado Integrado em Engenharia Mecânica Nesta dissertação reúnem-se os modelos de cálculo utilizados na determinação dos momentos em freios e em embraiagens. Neste trabalho consideram-se os casos de freios e embraiagens de atrito seco e atrito viscoso. Nos freios de atrito viscoso são considerados casos em que as características dos fluidos não são induzidas, e outros em que são induzidas modificações a essas mesmas características. São a...

  16. Parasitic zoonoses: survey in foxes (<em>Vulpes vulpesem> in the northern Apennines / Zoonosi parassitarie: indagini in volpi (<em>Vulpes vulpesem> dell'Appennino settentrionale

    Directory of Open Access Journals (Sweden)

    Vittorio Guberti

    1991-07-01

    Full Text Available Abstract A parasitological survey on 153 foxes was carried out in the northern Apennines, during the period 1984-1987. The following parasites were identified: <em>Toxocara canisem> (46.4%, <em>Taenia> sp. (17%, <em>Uncinaria stenocephalaem> (11.8%, <em>Mesocestoides lineatusem> (11.1%, <em>Ancylostoma caninumem> (3.9%, <em>Taenia hydatigenaem> (3.3%, <em>Trichuris vulpisem> (3.3%, <em>Dipylidium caninumem> (2.6%, <em>Taenia crassicepsem> (2%. All foxes were negative for <em>Trichinella> sp. A statistical analysis was performed to evaluate differences in the parasitic fauna according to the sex and age classes of the hosts. The role that the fox could have as a reservoir of helminthic zoonoses is discussed. The results are compared with those of similar studies carried out in Italy. Riassunto Nel periodo 1984-1987 è stata condotta un'indagine parassitologica su 153 volpi abbattute nell'Appennino romagnolo. Sono stati reperiti i seguenti parassiti: <em>Toxocara canisem> (46,4%, <em>Taenia> sp. (17%, <em>Uncinaria stenocephalaem> (11,8%, <em>Mesocestoides lineatusem> (11,1%, <em>Ancylostoma caninumem> (3,9%, <em>Taenia hydatigenaem> (3,3%, <em>Trichuris vulpisem> (3,3%, <em>Dipylidium caninumem> (2,6%, <em>Taenia crassicepsem> (2%. Tutte le volpi esaminate sono risultate negative per <em>Trichinella> sp. È stata effettuata l'analisi statistica dei dati per evidenziare eventuali differenze della fauna parassitaria in relazione al sesso e all'età delle volpi. Sulla base dei dati ottenuti viene discussa l'importanza che la Volpe può assumere come serbatoio di zoonosi elmintiche. I risultati acquisiti sono inoltre comparati con quelli ottenuti in analoghe ricerche condotte in Italia.

  17. <em>In Vivoem> Histamine Optical Nanosensors

    Directory of Open Access Journals (Sweden)

    Heather A. Clark

    2012-08-01

    Full Text Available In this communication we discuss the development of ionophore based nanosensors for the detection and monitoring of histamine levels <em>in vivoem>. This approach is based on the use of an amine-reactive, broad spectrum ionophore which is capable of recognizing and binding to histamine. We pair this ionophore with our already established nanosensor platform, and demonstrate <em>in vitroem> and <em>in vivoem> monitoring of histamine levels. This approach enables capturing rapid kinetics of histamine after injection, which are more difficult to measure with standard approaches such as blood sampling, especially on small research models. The coupling together of <em>in vivoem> nanosensors with ionophores such as nonactin provide a way to generate nanosensors for novel targets without the difficult process of designing and synthesizing novel ionophores.

  18. Variabilità morfologica ed ecologica in <em>Neomys fodiensem> e <em>Neomys anomalusem> nell'Appennino settentrionale

    Directory of Open Access Journals (Sweden)

    Dino Scaravelli

    2003-10-01

    Full Text Available I due <em>Neomys> italiani sono ancora da chiarire dal punto di vista della loro caratterizzazione morfologica e ecologica. Il lavoro prende in considerazione un campione di entrambe le specie proveniente da habitat forestali dell?Appennino settentrionale per i quali sono stati identificati i principali parametri ambientali. Vengono quindi descritte la variabilità dei tratti morfologici delle due specie in aree localizzate nel Parco Nazionale Foreste Casentinesi, Monte Falterona e Campigna nell?Appennino tosco-romagnolo. Risultano di sicuro effetto discriminatorio la maschera facciale, il rapporto piede posteriore/coda e i caratteri cranici. Sulla base dei criteri identificativi si sono realizzate rilevazioni di misure corporee per le due specie e una comparazione degli habitat utilizzati. <em>N. fodiensem> appare unica specie nelle faggete-abetine e dominante nei castagneti, mentre nell?Ontaneta e nelle zone aperte e termofile si registra la sola presenza di <em>N. anomalusem>. Mancano entrambi nei prati cespugliati, nella pecceta e nella cerreta. I gradienti presenti sono quindi illustrati. Non appare una differenza altitudinale nel campione esaminato, posto in stazioni tra i 400 e i 1300 m, ma per entrambe vi sono maggiori riscontri nella fascia tra 700 e 850 m. Nell?analisi multivariata rispetto alle altre specie e alle variabili ambientali si riscontra sempre una discreta correlazione con la presenza di acqua di una certa ampiezza, che comunque è significativa solo per <em>N. fodiensem>, mentre risulta di interesse la positiva correlazione di <em>N. anomalusem> con <em>Apodemus sylvaticusem>.

  19. Echolocation calls and morphology in the Mehelyi’s (<em>Rhinolophus mehelyiem> and mediterranean (<em>R. euryaleem> horseshoe bats: implications for resource partitioning

    Directory of Open Access Journals (Sweden)

    Egoitz Salsamendi

    2006-03-01

    Full Text Available Abstract <em>Rhinolophus euryaleem> and <em>R. mehelyiem> are morphologically very similar species and their distributions overlap extensively in the Mediterranean basin. We modelled their foraging behaviour using echolocation calls and wing morphology and, assuming niche segregation occurs between the two species, we explored how it is shaped by these factors. Resting frequency of echolocation calls was recorded and weight, forearm length, wing loading, aspect ratio and wing tip shape index were measured. <em>R. mehelyiem> showed a significantly higher resting frequency than <em>R. euryaleem>, but differences are deemed insufficient for dietary niche segregation. Weight and forearm length were significantly larger in <em>R. mehelyiem>. The higher values of aspect ratio and wing loading and a lower value of wing tip shape index in <em>R. melehyiem> restrict its flight manoeuvrability and agility. Therefore, the flight ability of <em>R. mehelyiem> may decrease as habitat complexity increases. Thus, the principal mechanism for resource partitioning seems to be based on differing habitat use arising from differences in wing morphology. Riassunto Ecolocalizzazione e morfologia nei rinolofi di Mehely (<em>Rhinolophus mehelyiem> e euriale (<em>R. euryaleem>: implicazioni nella segregazione delle risorse trofiche. <em>Rhinolophus euryaleem> e <em>R. mehelyiem> sono specie morfologicamente molto simili, la cui distribuzione risulta largamente coincidente in area mediterranea. Il comportamento di foraggiamento delle due specie è stato analizzato in funzione delle caratteristiche dei segnali di ecolocalizzazione e della morfologia alare, ed è stata valutata l’incidenza di questi fattori nell’ipotesi di una segregazione delle nicchie. È stata rilevata la frequenza a riposo dei segnali ultrasonori, così come il peso, la lunghezza dell’avambraccio, il carico alare, e due

  20. Phytochemical Composition, Antioxidant and Xanthine Oxidase Inhibitory Activities of <em>Amaranthus cruentusem> L. and <em>Amaranthus hybridusem> L. Extracts

    Directory of Open Access Journals (Sweden)

    Jeanne F. Millogo

    2012-06-01

    Full Text Available This paper describes a preliminary assessment of the nutraceutical value of <em>Amaranthus cruentus (A. cruentusem> and <em>Amaranthus hybridus (A. hybridusem>, two food plant species found in Burkina Faso. Hydroacetonic (HAE, methanolic (ME, and aqueous extracts (AE from the aerial parts were screened for <em>in vitroem> antioxidant and xanthine oxidase inhibitory activities. Phytochemical analyses revealed the presence of polyphenols, tannins, flavonoids, steroids, terpenoids, saponins and betalains. Hydroacetonic extracts have shown the most diversity for secondary metabolites. The TLC analyses of flavonoids from HAE extracts showed the presence of rutin and other unidentified compounds. The phenolic compound contents of the HAE, ME and AE extracts were determined using the Folin–Ciocalteu method and ranged from 7.55 to 10.18 mg Gallic acid equivalent GAE/100 mg. Tannins, flavonoids, and flavonols ranged from 2.83 to 10.17 mg tannic acid equivalent (TAE/100 mg, 0.37 to 7.06 mg quercetin equivalent (QE /100 mg, and 0.09 to 1.31 mg QE/100 mg, respectively. The betacyanin contents were 40.42 and 6.35 mg Amaranthin Equivalent/100 g aerial parts (dry weight in <em>A. cruentusem> and <em>A. hybridusem>, respectively. Free-radical scavenging activity expressed as IC50 (DPPH method and iron reducing power (FRAP method ranged from 56 to 423 µg/mL and from 2.26 to 2.56 mmol AAE/g, respectively. Xanthine oxidase inhibitory activities of extracts of <em>A. cruentus em>and <em>A. hybridusem> were 3.18% and 38.22%, respectively.<em> em>The> A. hybridusem> extract showed the best antioxidant and xanthine oxidase inhibition activities. The results indicated that the phytochemical contents of the two species justify their traditional uses as nutraceutical food plants.

  1. The effect of impact duration on the axial fracture tolerance of the isolated tibia during automotive and military impacts.

    Science.gov (United States)

    Martinez, Alberto A; Chakravarty, Avery B; Quenneville, Cheryl E

    2018-02-01

    Axial impacts to the lower leg during debilitating events such as frontal automotive collisions and military underbody blasts can cause significant injuries to the tibia. Several studies have conducted axial impact tests to determine the injury limits of the lower leg, mostly focused on automotive intrusions, resulting in an established force criterion for injury assessments. Due to the viscoelastic properties of bone, it remains unclear whether results from automotive experiments can be applied to higher-rate military blasts. Twelve male isolated cadaveric tibias (from six pairs, mean age: 62 ± 8 years) were subjected to axial impact loads using a custom-built pneumatic impactor, with one specimen from each pair tested at velocity and impact durations representative of a military blast condition, and the contralateral under conditions representing an automotive collision. Impacts were applied in increasing levels of intensity (defined using energy levels) until fracture occurred. Fracture risk was influenced by projectile velocity, kinetic energy, impulse, and load rate, and there was a significant difference in peak force (p = 0.023), impulse (p = 0.09), and load rate (p = 0.025) between the automotive and military test conditions causing fracture. A 10% risk of fracture corresponded to an impact force of 9.0kN for the automotive condition and 12.2kN for the military condition. These results suggest that fracture tolerances developed in studies that simulate automotive impacts cannot be directly applied to military impacts of shorter duration. The number of factors identified to predict injury also suggests that fracture is not controlled by a single variable. Copyright © 2017 Elsevier Ltd. All rights reserved.

  2. Dermatoses em renais cronicos em terapia dialitica

    Directory of Open Access Journals (Sweden)

    Luis Alberto Batista Peres

    2014-03-01

    Full Text Available Objetivo: As desordens cutâneas e das mucosas são comuns em pacientes em hemodiálise a longo prazo. A diálise prolonga a expectativa de vida, dando tempo para a manifestação destas anormalidades. Os objetivos deste estudo foram avaliar a prevalência de problemas dermatológicos em pacientes com doença renal crônica (DRC em hemodiálise. Métodos: Cento e quarenta e cinco pacientes com doença renal crônica em hemodiálise foram estudados. Todos os pacientes foram completamente analisados para as alterações cutâneas, de cabelos, mucosas e unhas por um único examinador e foram coletados dados de exames laboratoriais. Os dados foram armazenados em um banco de dados do Microsolft Excel e analisados por estatística descritiva. As variáveis contínuas foram comparadas pelo teste t de Student e as variáveis categóricas utilizando o teste do qui-quadrado ou o teste Exato de Fischer, conforme adequado. Resultados: O estudo incluiu 145 pacientes, com idade média de 53,6 ± 14,7 anos, predominantemente do sexo masculino (64,1% e caucasianos (90,0%. O tempo médio de diálise foi de 43,3 ± 42,3 meses. As principais doenças subjacentes foram: hipertensão arterial em 33,8%, diabetes mellitus em 29,6% e glomerulonefrite crônica em 13,1%. As principais manifestações dermatológicas observadas foram: xerose em 109 (75,2%, equimose em 87 (60,0%, prurido em 78 (53,8% e lentigo em 33 (22,8% pacientes. Conclusão: O nosso estudo mostrou a presença de mais do que uma dermatose por paciente. As alterações cutâneas são frequentes em pacientes em diálise. Mais estudos são necessários para melhor caracterização e manejo destas dermatoses.

  3. A lei de responsabilidade fiscal e seus mecanismos de transparência na gestão pública: um estudo de caso na prefeitura municipal do Recife (exercícios de 2001 e 2002)

    OpenAIRE

    RODRIGUES, Vânia Pereira Cavalcanti

    2004-01-01

    Este trabalho tem como eixo central a análise dos instrumentos utilizados pelo município do Recife que contribuem para uma maior transparência à gestão pública durante os exercícios de 2001 e 2002, a partir das regras inseridos na Lei de Responsabilidade Fiscal LRF (Lei Complementar nº 101, de 04 de maio de 2000). A escolha desse município se deve ao fato de que além da gestão atual proclamar a transparência em seu governo, é o município que despende maiores recursos orçament...

  4. Articulações políticas indígenas no sul da Bahia

    OpenAIRE

    Freire, Ricardo Sallum

    2016-01-01

    Os povos indígenas no Brasil têm se organizado social e politicamente diante dos atuais desafios impostos à reapropriação de seus territórios tradicionais e à manutenção dos direitos até então conquistados. No período histórico presente, em que se configura amplamente um meio geográfico técnico-científico-informacional, suas disputas territoriais ganham novos contornos e significados. Inseridos nesse contexto, os povos Tupinambá, Pataxó e Pataxó Hãhãhãe, no sul da Bahia, vêm constituindo sign...

  5. O fake fotográfico: simulações irônicas

    OpenAIRE

    Emérito, Matheus Barbosa

    2012-01-01

    Esta pesquisa traz um estudo sobre fake fotográfico, cada dia mais presente na imprensa e na publicidade mundiais. O termo fake é utilizado por abranger das produções falsas até aquelas que apenas simulam, sem ter como prioridade a intenção de enganar. Com o objetivo de comprovar o potencial do fake fotográfico, como elemento de crítica ao suporte midiático em que também está inserido, este trabalho fez uma distinção entre os conceitos de falsificação e simulação. As fotogra...

  6. Características petrográficas e químicas das rochas encaixantes das mineralizações auríferas do depósito Lavra Velha (Região de Ibitiara, borda oeste da Chapada Diamantina, Bahia)

    OpenAIRE

    Carlin, Aline de Cassia [UNESP

    2016-01-01

    O depósito de ouro Lavra Velha, que pertence ao Alvo de Prospecção Lavra Velha, da empresa Yamana Gold, localiza-se na cidade de Ibitiara, centro-oeste do Estado da Bahia e borda oeste do domínio fisiográfico da Chapada Diamantina, situado no Aulacógeno do Paramirim, na região norte do Cráton São Francisco. O depósito foi recentemente inserido na classe de modelo IOCG (Iron Oxide Cooper Gold), onde a mineralização de ouro se hospeda em brechas hematíticas sericitizadas. O principal objetivo d...

  7. Riscos psicossociais e assédio moral no contexto acadêmico

    OpenAIRE

    Vânia Cláudia Spoti Caran

    2007-01-01

    O Assédio Moral e os riscos psicossociais tem sido fonte de estudos de diversos pesquisadores no século XXI, mas ainda é pouco abordado pela Saúde do Trabalhador. Assédio Moral é tema complexo, de difícil abordagem, pois está inserido em um âmbito da violência caracterizada pela percepção muitas vezes apenas da própria vítima. Nesta pesquisa estabelecemos os objetivos de identificar a existência de Riscos Pscicossociais e Assédio Moral e suas repercussões entre os docentes de uma Instituição ...

  8. Avaliação de impactos ambientais da inovação tecnológica na colheita florestal

    OpenAIRE

    Freitas, Luís Carlos de

    2008-01-01

    Ao analisar o desenvolvimento da colheita florestal no país, observa-se que o progresso foi muito grande. Da década de 60 até os dias atuais muitas mudanças ocorreram no setor, com as operações evoluindo de um processo manual para o semimecanizado, adquirindo nas últimas décadas um aspecto expressivo em termos de mecanização. Assim, torna-se de grande importância um estudo que venha diagnosticar o perfil impactante inserido no processo de inovação tecnológica da colheita florestal. O objetivo...

  9. Cytotoxicity and Glycan-Binding Properties of an 18 kDa Lectin Isolated from the Marine Sponge <em>Halichondria em>okadai>

    Directory of Open Access Journals (Sweden)

    Yasuhiro Ozeki

    2012-04-01

    Full Text Available A divalent cation-independent lectin—HOL-18, with cytotoxic activity against leukemia cells, was purified from a demosponge, <em>Halichondria okadaiem>. HOL-18 is a 72 kDa tetrameric lectin that consists of four non-covalently bonded 18 kDa subunits. Hemagglutination activity of the lectin was strongly inhibited by chitotriose (GlcNAcβ1-4GlcNAcβ1-4GlcNAc, fetuin and mucins from porcine stomach and bovine submaxillary gland. Lectin activity was stable at pH 4–12 and temperatures lower than 60 °C. Frontal affinity chromatography with 16 types of pyridylaminated oligosaccharides indicated that the lectin had an affinity for <em>N>-linked complex-type and sphingolipid-type oligosaccharides with <em>N>-acetylated hexosamines and neuramic acid at the non-reducing termini. The lectin killed Jurkat leukemia T cells and K562 erythroleukemia cells in a dose- and carbohydrate-dependent manner.

  10. Over-Expression of CYP2E1 mRNA and Protein: Implications of Xenobiotic Induced Damage in Patients with <em>De Novoem> Acute Myeloid Leukemia with inv(16(p13.1q22; <em>CBFβ>-MYH11em>

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    Carlos E. Bueso-Ramos

    2012-08-01

    Full Text Available Environmental exposure to benzene occurs through cigarette smoke, unleaded gasoline and certain types of plastic. Benzene is converted to hematotoxic metabolites by the hepatic phase-I enzyme CYP2E1, and these metabolites are detoxified by the phase-II enzyme NQO1. The genes encoding these enzymes are highly polymorphic and studies of these polymorphisms have shown different pathogenic and prognostic features in various hematological malignancies. The potential role of different cytochrome p450 metabolizing enzymes in the pathogenesis of acute myeloid leukemia (AML in an area of active interest. In this study, we demonstrate aberrant CYP2E1 mRNA over-expression by quantitative real-time polymerase chain reaction in 11 cases of <em>de novoem> AML with inv(16; CBFβ-MYH11. CYP2E1 mRNA levels correlated with <em>CBFβ>-MYH11 em>transcript levels and with bone marrow blast counts in all cases. CYP2E1 over-expression correlated positively with NQO1 mRNA levels (R2 = 0.934, n = 7. By immunohistochemistry, CYP2E1 protein was more frequently expressed in AML with inv(16 compared with other types of AML (<em>p> < 0.001. We obtained serial bone marrow samples from two patients with AML with inv(16 before and after treatment. CYP2E1 mRNA expression levels decreased in parallel with <em>CBFβ>-MYH11 em>transcript levels and blast counts following chemotherapy. In contrast, CYP1A2 transcript levels did not change in either patient. This is the first study to demonstrate concurrent over-expression of CYP2E1 and NQO1 mRNA in AML with inv(16. These findings also suggest that a balance between CYP2E1 and NQO1 may be important in the pathogenesis of AML with inv(16.

  11. The beginnings of tourism in Macau and Canton in the XIXth century: from a border territory to an urban place

    Directory of Open Access Journals (Sweden)

    Frédéric Vidal

    2016-12-01

    Full Text Available Este texto tem por objetivo apresentar uma reflexão geral sobre os primórdios do processo de transformação de Macau e Cantão em lugares turísticos. Trata-se de um estudo exploratório conduzido a partir da análise de relatos de viajantes ocidentais em Macau e Cantão, entre as décadas de 1830 e de 1870. Observa-se como o uso lúdico ou turístico do espaço urbano contribuiu para a transformação global da percepção dessas cidades que, através dessas práticas, aparecem menos fragmentadas e segregadas. Os primeiros guias turísticos de Cantão e Macau vêm reforçar a ideia de transformação das representações desses territórios de fronteira, que eram até então vistos como uma simples zona de contatos e intercâmbios comerciais entre a China e o Ocidente, em lugares urbanos, inseridos em um circuito turístico internacional e em vias de adquirir dimensão cosmopolita.

  12. Caracterização do gene vip3A e toxicidade da proteína Vip3Aa50 à lagarta-do-cartucho e à lagarta-da-soja

    Directory of Open Access Journals (Sweden)

    Camila Soares Figueiredo

    2013-09-01

    Full Text Available O objetivo deste trabalho foi caracterizar o gene vip3A de Bacillus thuringiensis e verificar a toxicidade da proteína Vip3Aa50 a larvas da lagarta-do-cartucho (Spodoptera frugiperda e da lagarta-da-soja (Anticarsia gemmatalis. O gene vip3A foi amplificado por PCR, com iniciadores específicos, e gerou um fragmento de 2.370 pb. Esse fragmento foi clonado em vetor pGEM-T Easy e, em seguida, sequenciado, subclonado em vetor de expressão pET-28a (+ e inserido em células de Escherichia coli BL21 (DE3. A expressão da proteína Vip3Aa50 foi induzida por isopropil-β-D-1-tiogalactopiranosídeo (IPTG, visualizada em SDS-PAGE e detectada por "Western blot". Os ensaios de toxicidade revelaram alta atividade da proteína Vip3Aa50 contra as larvas neonatas da lagarta-da-soja e da lagarta-do-cartucho, com CL50 de 20,3 e 79,6 ng cm-2, respectivamente. O gene vip3Aa50 é um novo gene da classe vip3A.

  13. Geoprocessamento: estudos de Geomarketing e as possibilidades de sua aplicação no planejamento do desenvolvimento socioeconômico

    Directory of Open Access Journals (Sweden)

    Adriana Aparecida Furlan

    2011-12-01

    Full Text Available Os avanços do conhecimento da superfície terrestre e a grande quantidade de dados que podem ser inseridos nos mapas propiciou o desenvolvimento e utilização de softwares específicos voltados para o desenvolvimento de uma cartografia informatizada apoiada pelo uso de computadores. Desta forma os Sistemas de Informações Geográficas possibilitaram o tratamento de grande volume de dados e a elaboração de análises mais complexas. Esta situação levou ao surgimento de diversas possibilidades de análise da realidade e possibilitou, ainda, sua aplicação a diversos campos do conhecimento. Uma destas áreas de aplicação da cartografia computadorizada é conhecida como Geomarketing. Com base em teorias de Geografia Urbana, para compreensão do espaço urbano, e conhecimentos de mercado, o Geomarketing tem sido utilizado por empresas públicas e privadas no planejamento e desenvolvimento socioeconômico em países como o Brasil, em maior escala, e em Moçambique, ainda em fase de expansão.

  14. O melhor do Brasil é o brasileiro! Corpo, identidade, desejo e poder

    Directory of Open Access Journals (Sweden)

    Tiago Cantalice

    Full Text Available Este artigo tem como objetivo descrever quem são os parceiros das trocas afetivo-sexuais que se dão entre homens nativos/locais da Praia da Pipa - Rio Grande do Norte, Brasil (chamados emicamente de caça-gringas e mulheres estrangeiras em contextos de viagem turística, analisando suas marcas corporais e os sistemas de diferenciação em que estão inseridos, dissertando sobre como eles/elas agenciam as estruturas de poder e os estereótipos culturais. Para isso, realizou-se uma análise da construção da brasilidade mestiça e sensual - desde os relatos de Caminha e a ideia de Éden terreal, desembocando nas interpretações de Gilberto Freyre (2006 [1933] sobre a democracia racial e a ideologia da mestiçagem - que foi posta em diálogo com os dados obtidos em campo através da observação e de entrevistas, revelando como aqueles agentes se apropriam e ressignificam aquelas construções em seu próprio benefício.

  15. Quality of life and complications at the different stages of bone transport for treatment infected nonunion of the tibia.

    Science.gov (United States)

    Wang, Hu; Wei, Xing; Liu, Ping; Fu, Ya-Hui; Wang, Peng-Fei; Cong, Yu-Xuan; Zhang, Bin-Fei; Li, Zhong; Lei, Jin-Lai; Zhang, Kun; Zhuang, Yan

    2017-11-01

    The aim of this study was to assess Physical Component Summary (PCS), Mental Component Summary (MCS) of the Mos 36-item Short Form Health Survey (SF-36) score, and the virtual Analogue Scale (VAS) of pain during the treatment period and the complication rate associated with infected nonunion of the tibia managed surgically by bone transport.This is a retrospective analysis of prospectively collected data in a consecutive patient cohort. Patients suffering from infected nonunion of the tibia were treated by bone transport from 2012 to 2014. Follow-up was for at least 2 years after complete osseous consolidation. Standardized treatment included bacterial eradication by segmental resection, bone transport using Ilizarov apparatus, and docking maneuver. The main outcome measurements consisted of the quality of life (PCS and MCS scores) and the VAS of pain during the different stages of therapy. In addition, all complications were documented.Our series comprised 12 men and 3 women with an average age of 36.9 years (range: 20-55 years). All patients previously undergone an average of 2.9 operations (range: 1-6 operations). In all patients, bone defects were present with a mean size of 7.5 cm (range: 3-12 cm), and all patients were suffering from soft tissue defects (range: 5-17 cm). The mean external fixator time (EFT) was 48 weeks (range: 30-62 weeks) and the mean external fixation index was 43.1 days/cm (range: 33-62 days/cm). All patients achieved bone union, and no recurrence of infection was observed. According to the Paley classification, patients suffered 15 minor and 13 major complications. The average complication rate per patient comprised of 1.0 minor and 0.9 major complications. Bone grafting was required in 6 cases at the docking site. One patient suffered from equinus deformity, and refused any further surgical procedures. We performed 28 operations in 15 patients (average 1.9 operations per patient). After the period of bone transport, PCS and MCS

  16. Integralidade do cuidado: concepções e práticas de docentes de Graduação em Enfermagem

    Directory of Open Access Journals (Sweden)

    Fabiana Ribeiro Santana

    2008-03-01

    Full Text Available A integralidade tem norteado processos de mudanças, na formação do enfermeiro. Assim, é importante conhecer as iniciativas em cursos de Graduação em Enfermagem, com foco nesse princípio. Trata-se de um estudo descritivo-exploratório, com objetivos de analisar as concepções de integralidade presentes, nos discursos dos docentes, e as estratégias utilizadas para a apreensão de integralidade pelos alunos. Participaram docentes de três Instituições de Ensino Superior (IES existentes no Estado de Goiás, que haviam integralizado pelo menos um currículo, no ano de 2005. A coleta de dados ocorreu nas respectivas instituições, entre abril e setembro de 2006, após agendamento prévio. Compuseram o estudo onze docentes do gênero feminino, com idade entre 40 e 55 anos, com experiência em docência, variando de 15 a 32 anos e a maioria portadora de Pós-Graduação Stricto-Sensu. As entrevistas e os planos de ensino dos docentes representantes das áreas das Ciências da Enfermagem (Fundamentos de Enfermagem, Assistência de Enfermagem, Administração de Enfermagem e Ensino de Enfermagem foram analisados segundo Bardin (2003. Por meio da análise, emergiram três concepções de integralidade: Integralidade do Cuidado: do singular ao global; Integralidade do Cuidado: os caminhos para o SUS e Integralidade do Cuidado: estratégias para a ensinagem. Os sentidos da integralidade do cuidado mostraram-se inovadores, à medida que valorizam o singular, o global e os caminhos para o SUS. Manifestam os sentidos, prestando o cuidado ao ser humano na sua realidade social, com as suas especificidades e subjetividades, considerando as redes de cuidado e sociais em que estão inseridos. Como estratégias para a ensinagem, buscam desenvolver o aprender a aprender e fazer e aprender a ser e viver junto, possibilitando meios para que os educandos apreendam todos os sentidos manifestos pelos docentes. Esperamos que os resultados, desta pesquisa, possam

  17. Una apuesta analítica del funcionamiento del dispositivo psi pericial en el campo penal Uma aposta analitica do funcionamento do dispositivo psi pericial inserido no campo penal An analysis of the psy expert assemblage in the penal field

    Directory of Open Access Journals (Sweden)

    Laura López Gallego

    2010-08-01

    Full Text Available La aproximación al dispositivo psi pericial inserto en el campo penal aquí efectuada, traza un itinerario de análisis que aborda el funcionamiento de dicho dispositivo, poniendo especial énfasis en las imbricadas relaciones entre los saberes jurídicos y lo psi. Para efectuar dicho análisis, se utilizan documentos específicos producidos por los peritos psi en el marco del Poder Judicial del Uruguay. Se entiende a las prácticas psi como el efecto de ciertas confluencias históricas relacionadas con el examen, con las estrategias de objetividad, con la traducción de categorías psi en categorías jurídicas y con la incorporación de la lógica de individualización como eje del dispositivo psi pericial. La pregunta que guía el análisis versa sobre lo que posibilita la incorporación del dispositivo psi pericial en el campo penal.A aproximação ao dispositivo psi pericial inserido no campo penal aqui realizada traça um itinerário de análise que aborda o funcionamento do dispositivo, enfatizando as relações imbricadas entre os saberes jurídicos e psi. Para realizar a análise, utilizam-se documentos específicos produzidos por peritos psi no marco do Poder Judicial do Uruguai. Entendem-se as práticas psi como efeito de certas confluências históricas relacionadas ao exame, às estratégias de objetividade, à tradução de categorias psi em categorias jurídicas e à incorporação da lógica da individualização como um ponto central do dispositivo psi pericial. A pergunta que orienta a análise é o que possibilita a incorporação do dispositivo psi pericial no campo penal.The approach made here about the "expert psy assemblage" inserted into the criminal field draws a path of analysis that considers the operation of this assemblage, highlighting the intertwined relationships between the legal and psychological knowledge. To undertake such analysis, specific documents produced by the psy experts, working under the Judiciary

  18. Struktur mikroskopis kartilago epifisialis tibia fetus mencit (Mus musculus L. dari induk dengan perlakuan kafein

    Directory of Open Access Journals (Sweden)

    Heri Budi Santoso

    2012-02-01

    Full Text Available Caffeine affects activity of enzyme of polimerase DNA, induce the mitosis of cells mammal of before replication DNA ended the perfection, and also pursue the activity of enzyme fosfodiesterase is hence anticipated by a potential caffeine generate the developmental defect, for example can pursue the process of ossification endochondralis in growth plate. This present research studied the effect of caffeine gift by oral on pregnant dam during organogenesis to structure of histologi growth plate tibia foetus. Twenty four pregnant mice (6 per group were treated by gavage with 0 (control, 40, 80, 120 mg/kg b.w caffeine from gestation day 6 to 15. On day 18 of pregnancy, fetuses was removed from dams by caecarean section.. Observation of histological structure of the tibial growth plate preparation by paraffin method (Hematoxylin-Eosin staining. The result showed that caffeine cause slightened proliferative zone, maturation zone, and cartilage calcification zone on the mouse tibial growth plate.

  19. [Application of three-dimensional printing in the operation of distal tibia fracture involving epiphyseal plate injury for teenagers].

    Science.gov (United States)

    Zhao, Jingxin; Ma, Yachang; Han, Dong; Jin, Yu

    2017-10-01

    To investigate the application value of three-dimensional (3-D) printing technology in the operation of distal tibia fracture involving epiphyseal plate injury for teenagers. The retrospective analysis was conducted on the clinical data of 16 cases of children patients with distal tibia fracture involving epiphyseal plate injury undergoing the operation by using of 3-D printing technology between January 2014 and December 2015. There were 12 males and 4 females with an age of 9-14 years (mean, 12.8 years). The causes of injury included traffic accident injury in 9 cases, heavy pound injury in 3 cases, and sport injury in 4 cases. The time from injury to operation was 3-92 hours (mean, 25.8 hours). According to Salter-Harris typing standard, the typing for epiphyseal injury was classified as type Ⅱ in 11 cases, type Ⅲ in 4 cases, and type Ⅳ in 1 case. The thin slice CT scan on the affected limb was performed before operation, and the Mimics14.0 medical software was applied for the design and the 1∶1 fracture model was printed by the 3-D printer; the stimulation of operative reduction was made in the fracture model, and bone plate, Kirschner wire, and hollow screw with the appropriate size were chosen, then the complete operative approach and method were designed and the internal fixator regimen was chosen, then the practical operation was performed based on the preoperative design regimen. The operation time was 40-68 minutes (mean, 59.1 minutes); the intraoperative blood loss was 5-102 mL (mean, 35 mL); the intraoperative fluoroscopy times was 2-6 times (mean, 2.8 times). All the patiens were followed up 12-24 months (mean, 15 months). The fracture of 15 cases reached anatomic reduction, and 1 cases had no anatomic reduction with the displaced end less than 1 mm. All the fractures reached bony union with the healing time of 2-4 months (mean, 2.6 months). There was no deep vein thrombosis, premature epiphyseal closure and oblique, or uneven ankle surface

  20. O Programa Mais Educação e suas possibilidades de intensificar a jornada escolar na formação do aluno

    Directory of Open Access Journals (Sweden)

    Cleide Aparecida Pereira Cirino

    2016-06-01

    Full Text Available Esta pesquisa investigou as possibilidades de intensificar a jornada escolar na formação integral dos alunos que estão inseridos no Programa Mais Educação, instituído pelo Governo Federal em 2007 para a ampliação da jornada escolar e a organização curricular, na perspectiva da educação integral que visa atender o aluno em período integral. A metodologia foi de cunho qualitativo desenvolvida na Escola de Educação Básica Basiliano do Carmo de Jesus no Município de Sinop, onde foi desenvolvido o Programa, ressaltando a importância de compreender na prática como é o processo de escolarização e aprendizagem. Palavras-chave: Programa Mais Educação; escolarização; aprendizagem.

  1. Thermal Studies of Zn(II, Cd(II and Hg(II Complexes of Some <em>N-Alkyl-N>-Phenyl-Dithiocarbamates

    Directory of Open Access Journals (Sweden)

    Peter A. Ajibade

    2012-07-01

    Full Text Available The thermal decomposition of Zn(II, Cd(II and Hg(II complexes of <em>N-ethyl-N>-phenyl and <em>N-butyl-N>-phenyl dithiocarbamates have been studied using thermogravimetric analysis (TGA and differential scanning calorimetry (DSC. The products of the decomposition, at two different temperatures, were further characterized by scanning electron microscopy (SEM and energy-dispersive X-ray spectroscopy (EDX. The results show that while the zinc and cadmium complexes undergo decomposition to form metal sulphides, and further undergo oxidation forming metal oxides as final products, the mercury complexes gave unstable volatiles as the final product.

  2. The interplay of dietary nutrient specification and varying calcium to total phosphorus ratio on efficacy of a bacterial phytase: 1. Growth performance and tibia mineralization.

    Science.gov (United States)

    Olukosi, O A; Fru-Nji, F

    2014-12-01

    A 14-d experiment was conducted to study the effects of 2 dietary variables on efficacy of a 6-phytase from Citrobacter braakii on broiler growth performance and tibia mineralization. Diets were formulated with or without nutrient matrix values for phytase as negative or positive control (NC or PC, respectively) and with 2 Ca:total P (tP; 2:1 or 2.5:1). The diets were supplemented with 0, 1,000, or 2,000 phytase units (FYT)/kg, thus producing a 2 × 2 × 3 factorial arrangement. Birds and feed were weighed on d 7 and 21, and tibia bones were collected from all the birds on d 21. The main effects of nutrient matrix, Ca:tP, and phytase supplementation were significant (P phytase and matrix × phytase interactions were significant (P phytase increased weight gain (P phytase increased (P Phytase supplementation of diets with 2:1 Ca:tP increased (P phytase supplementation increased (P phytase supplementation (1,000 FYT/kg) was in NC diets with narrow Ca:tP, whereas the best response to higher level of phytase supplementation (2,000 FYT/kg) was achieved in diets in PC diets with wide Ca:tP. ©2014 Poultry Science Association Inc.

  3. Conservazione e gestione della Lepre italica (<em>Lepus corsicanusem>

    Directory of Open Access Journals (Sweden)

    Francesco Riga

    2003-10-01

    Full Text Available Il recente riconoscimento dello <em>status> specifico della Lepre italica (<em>Lepus corsicanusem> e l?accertamento dell?areale distributivo rappresentano le azioni più importanti per la conservazione di un <em>taxon endemicoem> che si era creduto estinto. Nella penisola la specie presenta un areale discontinuo, il cui limite settentrionale è dato dal comune di Manciano (GR, sul versante tirrenico e da una linea che dalla provincia de L'Aquila arriva al Gargano. In Sicilia la distribuzione è relativamente continua anche in aree non protette. Dati genetici hanno permesso di confermare la presenza in Corsica. Al contrario, nell?Isola d'Elba, a seguito di estese ricerche, sono stati identificati solo esemplari di <em>L. europaeusem>. Nell?Italia peninsulare <em>L. corsicanusem> è spesso presente in simpatria con popolazioni di <em>L. europaeusem>, mentre in Sicilia la lepre europea non ha originato popolazioni stabili, nonostante l?immissione di molte migliaia di individui. La distribuzione ecologica di <em>L. corsicanusem> ed analisi ambientali specifiche, suggeriscono l?adattamento prevalente agli ambienti a clima mediterraneo, benché essa sia presente anche a quote elevate (> 1.500 m s.l.m.. Dati preliminari di abbondanza relativa hanno evidenziato una situazione diversificata tra la penisola e la Sicilia e tra aree a diverso regime di gestione; un confronto tra le aree protette ha evidenziato rispettivamente valori di 5,54 e 11,73 ind./km². La riduzione quali-quantitativa e la frammentazione dell?<em>habitat> delle lepri è un fenomeno potenzialmente pericoloso per la sopravvivenza delle popolazioni, determinando fenomeni di estinzione locale dovuti alle basse densità di popolazione, inducendo fenomeni di erosione della variabilità genetica e di riduzione della <em>fitness> degli individui. L?introduzione di <em>L. europaeusem> può costituire un importante fattore limitante sia per la possibile competizione

  4. Methyl 2-Benzamido-2-(1<em>H>-benzimidazol-1-ylmethoxyacetate

    Directory of Open Access Journals (Sweden)

    Alami Anouar

    2012-09-01

    Full Text Available The heterocyclic carboxylic α-aminoester methyl 2-benzamido-2-(1<em>H>-benzimidazol-1-ylmethoxyacetate is obtained by <em>O>-alkylation of methyl α-azido glycinate <em>N>-benzoylated with 1<em>H>-benzimidazol-1-ylmethanol.

  5. The impact of nicotine on osseointegration. An experimental study in the femur and tibia of rabbits

    DEFF Research Database (Denmark)

    Balatsouka, Dimitra; Gotfredsen, Klaus; Lindh, Christian H

    2005-01-01

    OBJECTIVES: The aim of the present study was to analyze the effect of an enhanced systematic dose of nicotine on osseointegration of titanium implants. MATERIAL AND METHODS: Sixteen female rabbits received either nicotine (n=8) or saline (n=8) administered subcutaneously via mini-osmotic pumps...... for 2 months. The pump delivered 6 mug/kg/min of nicotine for the animals in the test group. Blood was withdrawn and plasma cotinine levels were measured weekly. Thirty-two titanium implants were inserted into the femur and tibia of all rabbits after 4 weeks and after 6 weeks of nicotine...... and the peri-implant BD-i showed no significant differences between the test and the control group after 2 or after 4 weeks. CONCLUSION: Nicotine exposure for a short period of time even in a high dose did not have a significant impact on implant osseointegration in rabbits....

  6. Development of 101 Gene-based Single Nucleotide Polymorphism Markers in Sea Cucumber, <em>Apostichopus japonicusem>>

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    Wei Lu

    2012-06-01

    Full Text Available Single nucleotide polymorphisms (SNPs are currently the marker of choice in a variety of genetic studies. Using the high resolution melting (HRM genotyping approach, 101 gene-based SNP markers were developed for <em>Apostichopus japonicusem>, a sea cucumber species with economic significance for the aquaculture industry in East Asian countries. HRM analysis revealed that all the loci showed polymorphisms when evaluated using 40 <em>A. japonicusem> individuals collected from a natural population. The minor allele frequency ranged from 0.035 to 0.489. The observed and expected heterozygosities ranged from 0.050 to 0.833 and 0.073 to 0.907, respectively. Thirteen loci were found to depart significantly from Hardy–Weinberg equilibrium (HWE after Bonferroni corrections. Significant linkage disequilibrium (LD was detected in one pair of markers. These SNP markers are expected to be useful for future quantitative trait loci (QTL analysis, and to facilitate marker-assisted selection (MAS in <em>A. japonicusem>.

  7. Activity-Guided Isolation of Antioxidant Compounds from <em>Rhizophora apiculataem>

    Directory of Open Access Journals (Sweden)

    Hongbin Xiao

    2012-09-01

    Full Text Available <em>Rhizophora apiculataem> (<em>R. apiculataem> contains an abundance of biologically active compounds due its special salt-tolerant living surroundings. In this study, the total phenolic content and antioxidant activities of various extract and fractions of stem of <em>R. apiculataem> were investigated. Results indicated that butanol fraction possesses the highest total phenolic content (181.84 mg/g GAE/g dry extract with strongest antioxidant abilities. Following <em>in vitroem> antioxidant activity-guided phytochemical separation procedures, lyoniresinol-3α-<em>O>-β-arabinopyranoside (1, lyoniresinol-3α-<em>O>-β-rhamnoside (2, and afzelechin-3-<em>O>-L-rhamno-pyranoside (3 were separated from the butanol fraction. These compounds showed more noticeable antioxidant activity than a BHT standard in the DPPH, ABTS and hydroxyl radical scavenging assays. HPLC analysis results showed that among different plant parts, the highest content of 13 was located in the bark (0.068%, 0.066% and 0.011%, respectively. The results imply that the <em>R. apiculataem> might be a potential source of natural antioxidants and 13 are antioxidant ingredients in <em>R. apiculataem>.

  8. Synthesis and Spectroscopic Analysis of Novel 1<em>H-Benzo[d>]imidazoles Phenyl Sulfonylpiperazines

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    Amjad M. Qandil

    2012-05-01

    Full Text Available A group of benzimidazole analogs of sildenafil, 3-benzimidazolyl-4-methoxy-phenylsulfonylpiperazines 2–4 and 3-benzimidazolyl-4-methoxy-<em>N,N>-dimethyl- benzenesulfonamide (5, were efficiently synthesized. Compounds 2–5 were characterized by NMR and MS and contrary to the reported mass spectra of sildenafil, the spectra of the piperazine-containing compounds 2–4 showed a novel fragmentation pattern leading to an <em>m/z> = 316. A mechanism for the formation of this fragment was proposed.

  9. Close Intramedullary Interlocking Nailing Versus Locking Compression Plating In the Treatment of Closed Fracture Shaft of the Tibia.

    Science.gov (United States)

    Kundu, I K; Datta, N K; Chowdhury, A Z; Das, K P; Tarik, M M; Faisal, M A

    2016-07-01

    Fracture of tibial shaft is the commonest site of long bone fractures due to its superficial location involving young or middle-age people. Proper management is an important issue regarding the future effective movements. In this study patients were grouped in closed Intra medullary interlocking nailing and locking compression plating. Post-operative follow up at 2 weeks, 6 weeks, 12 weeks and 3 months thereafter up to 6 months were done. Each of the patients was evaluated clinically and radiologically by tucker criteria of Tuker et al. Patients were assessed for pain on full weight bearing and kneeling, shortening and range of motion of knee and ankle joints. Radiological assessment for union of fracture, alignment of fracture and angulations and position of nail and screws and infection were observed during follow up. A total number of 32 patients were selected but only 27 patients were available for follow up for a period of 6 months. They were grouped into Group A, consisting of 15 patients who took the treatment in the form of closed intramedullary interlocking nailing and Group B, consisting of 12 patients those underwent ORIF with locking compression plating. In both of the groups Motor Vehicle Accident was the main mechanism of trauma. Fracture involving the middle 3rd of the tibia is common in both the groups. During post-operative follow up, four patients in Group A complained anterior knee pain, one patient in Group B had superficial infection, most of the patients had no restriction of movement in the ankle and knee joints and a single patient in Group B showed 1.5cm shortening of the lower limb. Period of hospital stay and fracture union time were less in Group A, which was statistically significant. Both groups showed excellent result with minimum complications. So this study permits to conclude that close IM interlocking nailing and open reduction and internal fixation by locking compression plating is equally effective for the management of close

  10. Osservazioni in cattività sul ciclo stagionale del peso corporeo e sull'efficienza digestiva di <em>Pipistrellus kuhliiem> e <em>Hypsugo saviiem> (Chiroptera: Verspertilionidae

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    Gianna Dondini

    2004-06-01

    Full Text Available Abstract Captivity observation on body weight cycle and digestive efficiency in <em>Pipistrellus kuhliiem> and <em>Hypsugo saviiem> (Chiroptera: Vespertilionidae Many bat species of cold-temperate climate are subject to seasonal variation of temperature and food availability. Fat reserve during summer-autumn is therefore a physiological adaptation to spend the winter months by hibernating or to sustain migration. During a research on bats in urban areas, two juveniles of Kuhl's bat (<em>Pipistrellus kuhliiem>, 2 females and two juveniles of Savi's bat (<em>Hypsugo saviiem>, 1 male and 1 female were collected in 1997 in the urban area of Florence (central Italy. Bats were kept in a cage of 50x40x30 cm with a temperature between 17° and 22° C. Every day they were weighted with an electronic balance before eating mealworms (<em>Tenebrio molitorem>. Digestive efficiency, calculated on dry material, was about 90% for both species. In about six months <em>P. kuhliiem> and <em>H. saviiem> increased on the average of 450% and 280% in weight respectively. Deposition of fat reserve seemed to be faster in <em>P. kuhliiem> than in <em>H. saviiem>. Both species showed a circannual cycle in the variation of weight. Riassunto Molte specie di pipistrelli dei climi temperato-freddi sono soggette a marcate variazioni stagionali di temperatura e disponibilità di cibo. L'accumulo di grasso in tarda estate-autunno è quindi un adattamento fisiologico per trascorrere in ibernazione i mesi invernali o per intraprendere la migrazione. Nell'ambito di una ricerca pluriennale sui pipistrelli in ambienti urbani, 4 esemplari giovani, di cui 2 di Pipistrello albolimbato (<em>Pipistrellus kuhliiem>, 2 femmine e due di Pipistrello di Savi (<em>Hypsugo saviiem>, 1 maschio e 1 femmina, sono stati raccolti nella pianura di Firenze durante l'estate del 1997 e mantenuti in un contenitore di 50x40x30 cm ad

  11. Construções e redefinições: as toxoplasmoses

    OpenAIRE

    Vera Lúcia Marques da Silva

    2008-01-01

    Esta tese tem como objeto o processo de redefinição da categoria diagnóstica infecção/doença Toxoplasmose. É um estudo qualitativo, inserido no campo science studies, de abordagem crítica reformista e de natureza empírico-analítica. Vincula-se à linha de pesquisa intitulada Instituições, saberes e práticas em saúde e ao projeto Os médicos e a ciência do Instituto de Medicina Social da Universidade do Estado do Rio de Janeiro. As unidades de análise foram: 1) Agentes envolvidos na produção do ...

  12. Inserção social e habitação: modos dos portadores de transtornos mentais habitarem a vida na perspectiva psicanalítica

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    Andréa Máris Campos Guerra

    2009-12-01

    Full Text Available Discutimos, pela psicanálise, a inserção do psicótico no campo do Outro, como hipótese para pensar suas soluções singulares de "habitação". Essa análise integra pesquisa multicêntrica e multidisciplinar, cujo propósito é avaliar como os portadores de sofrimento mental grave constituem sua habitação (habitus e inserção social a partir de elementos estruturais da moradia (abrigo, privacidade, segurança e conforto e de suporte social (rede social e de serviços, estando ou não inseridos em SRTs.

  13. AS ABORDAGENS EDUCACIONAIS NAS RELAÇÕES PROFESSOR-ALUNO E SEUS REFLEXOS NA GESTÃO ORGANIZACIONAL

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    Maria Emilia Camargo

    2012-03-01

    Full Text Available Este artigo tem por objetivo proporcionar reflexões sobre as relações de professores e alunos, bem como as interferências surgidas desta na gestão organizacional, que envolvem o processo de desenvolvimento econômico, social e humano. Em tempos modernos e com a complexidade dos fatores humanos inseridos dentro de um mercado globalizado de grande competição, cada vez mais se busca a eficiência humana e econômica das organizações, para que assim se possa superar os desafios diários existentes da sustentabilidade e perpetuidade. Desta forma procurou-se embasar algumas reflexões sobre tais paradigmas.

  14. O olhar do docente acerca dos alunos que trabalham inseridos nas metodologias ativas de aprendizagem

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    Tiago Oliveira Melo

    2014-09-01

    Full Text Available Objetivo: o presente estudo apresenta-se como uma das possibilidades de aproximação à realidade do aluno que trabalha do Curso de Enfermagem da PUC/SP, na tentativa de compreender o papel do docente no processo de aquisição de competências indicadas no Projeto Pedagógico e alcançadas através das Metodologias Ativas. Método: para identificar a caracterização do perfil acadêmico do corpo docente, bem como a sua percepção quanto à capacidade de aprendizagem do aluno que trabalhada, 25 docentes atuantes entre o 1ª e o 4ª ano responderam um questionário com questões fechadas/abertas e uma entrevista gravada. O material empírico foi organizado segundo técnica do Discurso do Sujeito Coletivo e procedeu-se a discussão fundamentada na Teoria das Representações Sociais. Resultados: foram encontrados nos quatorze temas essenciais a importância desse método para o aprendizado efetivo do aluno que trabalha. O docente tem o papel de facilitador neste processo didático pedagógico. Conclusão: nesta pesquisa dirigiu-se o olhar para os docentes do Curso de Enfermagem de uma única instituição, por isso não se tem a pretensão de generalização. Entretanto, é muito importante destacar que para um curso ancorado na Aprendizagem Baseada em Problemas seja eficaz é preciso constante discussão e reflexão entre docentes e discentes sobre novas estratégias que possam minimizar as dificuldades enfrentadas pelos alunos que trabalham para uma aprendizagem efetiva.

  15. Torsional osteotomies of the tibia in patellofemoral dysbalance.

    Science.gov (United States)

    Dickschas, Jörg; Tassika, Aliki; Lutter, Christoph; Harrer, Jörg; Strecker, Wolf

    2017-02-01

    Anterior knee pain or patellofemoral instability is common symptom of patellofemoral dysbalance or maltracking. Tibial torsional deformities can be the reason of this pathology. After appropriate diagnostic investigation, the treatment of choice is a torsional osteotomy. This study addresses the diagnostic investigation, treatment, and the outcome of torsional osteotomies of the tibia. Does this treatment result in patellofemoral stability and provide pain relief? Forty-nine tibial torsional osteotomies were included. The major symptoms were patellofemoral instability in 19 cases and anterior knee pain in 42 cases. In addition to clinical and radiographic analysis, a torsional angle CT scan was performed pre-operatively. A visual analog scale (VAS), the Japanese Knee Society score, the Tegner activity score, and the Lysholm score were assessed pre-operatively and at the 42-month follow-up. Mean tibial external torsion was 47.4° (SD 5.41; range 37°-66°; standard value 34°). Surgical treatment consisted of an acute supratuberositary tibial internal torsional osteotomy (mean 10.8°; SD 3.01°; range 5°-18°). At the follow-up investigation, the Tegner activity score was increased 0.4 points (p value 0.014) from 3.9 (SD 1.33; range 2-7) to 4.3 (SD 1.25; range 0-7). The Lysholm score increased 26 points (SD 16.32; p value 0.001) from 66 (SD 14.94; range 32-94) to 92 (SD 9.29; range 70-100) and the Japanese Knee Society score increased 18 points (SD 14.70; p value 0.001) from 72 (SD 13.72, range 49-100) to 90 (SD 9.85, range 60-100). VAS was reduced 3.4 points (SD 2.89; p value 0.001) from 5.7 (SD 2.78; range 0-10) to 2.3 (SD 1.83; range 0-7). As regards patellofemoral instability, no redislocation occurred in the follow-up period. The results of this study show that in cases of tibial maltorsion, a torsional osteotomy can lead to patellofemoral stability and pain relief, and should be considered as a treatment option. The improved clinical scores in the present

  16. O círculo vicioso da violência sexual: do ofendido ao ofensor

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    Núbia Angélica de Jesus

    Full Text Available O presente trabalho discute o fenômeno da violência sexual contra crianças e adolescentes pondo em foco o autor do ato. Objetivou-se compreender o processo de formação da violência empregada, tendo em vista a experiência de violência anteriormente sofrida pelo autor, com base em uma visão fenomenológico-existencial. Para ilustração, foram inseridos trechos de atendimentos psicoterápicos realizados com um autor de violência sexual, de trinta e um anos, preso há onze anos em regime fechado. Foram realizadas vinte e nove sessões, que fizeram parte do Projeto Invertendo a Rota, vinculado ao CEPAJ/UCG. Concluiu-se, por meio dos atendimentos, que a imagem do abuso sexual sofrido na infância influenciou a forma como o sujeito cometeu a violência na idade adulta. Com o trabalho psicoterápico, percebeu-se ainda que o sujeito pôde ampliar percepções construídas acerca de si mesmo e do outro, começando, assim, um processo de ressignificação de sua própria história.

  17. The influence of calcium and phosphorus levels on egg production, egg quality, tibia weight and 32P retention of layers

    International Nuclear Information System (INIS)

    Edwardly, Y.S.; Hendratno, C.; Yuyu Wahyu

    1979-01-01

    An experiment was conducted to study the influence of three levels of calcium and three levels of dietary phosphorus on egg production, egg quality, tibia weight and 32 P retention of layers. Calcium levels of 3.0; 3.5 and 4.0 percent were used and phosphorus contest of the diet fed were either 0.6; 0.9 or 1.2 percent.Egg production was highest with rations containing 3.5% calcium and 0.9% phosphorus. A significant increase in egg production was found at 0.9% levels of phosphorus compared to levels of 0.6 and 1.2%. Egg quality was increased significantly (p 32 P retention was low at the highest calcium level. (author)

  18. [Keratoprosthesis with Biological Haptic - The Düsseldorf-Offenburg-Experience with Osteo-Odonto- and Tibia-Keratoprosthesis].

    Science.gov (United States)

    Geerling, Gerd; Hille, Konrad

    2017-06-01

    In severe ocular surface disease with limbal stem cell deficiency associated with severe dry eye, penetrating keratoplasty is likely to fail. In these cases, and provided the posterior segment is normal, keratoprosthesis surgery (KPro) can achieve visual rehabilitation. In KPros with an autologous biological haptic, a bone-tooth-complex (osteo-odonto-keratoprothesis, OOKPro) or a piece of tibial cortex (tibia-keratoprosthesis, TKPro) is used to carry a PMMA cylinder. This construct can successfully be implanted even in severely dry eyes and in those with autoimmune disease, in which other KPro designs frequently fail. Herein we review the published anatomic long-term results of OOKPro and TKPro on our own patients. With a mean follow-up of 7.5 years (max. 20.6) for OOKPro and 4.5 years (max. 13.3) for TKPro patients, the retention rate was 91 and 86%, respectively. We are unaware of any other technique for artificial replacement of the cornea with equally positive long-term results as KPros with a biological haptic. Georg Thieme Verlag KG Stuttgart · New York.

  19. Valgus osteotomy of the tibia with a Puddu plate combined with anterior cruciate ligament reconstruction

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    Albuquerque Roberto Freire da Mota e

    2003-01-01

    Full Text Available Anterior knee instability associated with a varus deformity is a complex condition with several treatment possibilities. Among these, anterior cruciate ligament (ACL associated to a simultaneous valgus tibial osteotomy is a increasing indication. This simultaneous procedure adds technical issues to those related to the isolated surgeries. Thus, the osteotomy plane and location of fixation hardware shouldn?t conflict with tibial tunnel and ACL graft fixation. Authors analyze the relations between a opening tibial valgus osteotomy stabilized with a Puddu plate and ACL reconstruction with a patellar tendon graft fixated with interference screws in 10 human cadaver knees. A straight oblique tibial osteotomy starting on the medial tibial cortex and oriented laterally and proximally was performed on all knees with a 10mm opening medially and stabilized with a Puddu plate on the most posterior aspect of the medial tibia, and a tibial tunnel drilled 50° to tibial plateau. With this technique there was no intersection between tibial tunnel or interference screw and the osteotomy or the plate fixation screws.

  20. Compreendendo o significado de estar hospitalizado no cotidiano de crianças e adolescentes com doenças crônicas

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    Juliana Homem da Luz

    2012-12-01

    Full Text Available O estudo buscou compreender o significado da hospitalização para crianças e adolescentes com doenças crônicas, fundamentado no Interacionismo Simbólico, desenvolvido a partir da Pesquisa Convergente Assistencial de abordagem qualitativa, cujos participantes foram uma criança e três adolescentes. Os dados foram coletados através do processo de interação em enfermagem, observação participante, escuta sensível e desenho infantil. O significado da hospitalização expressou doença, distância de casa, dor, tristeza, sofrimento, choro, nervosismo, agressividade, perda da liberdade, bem como tratamento, cura, apoio, amigos, reciprocidade com a natureza e "experiências agradáveis" através do cuidado, paixão, amor, felicidade e brincadeiras. Destacou-se a capacidade dos participantes em transformar o olhar da situação na qual estão inseridos, expressos em seus desenhos, permeados de significados e lições de vida.

  1. Uso de plasma rico en plaquetas autólogo en el tratamiento quirúrgico de pseudoartrosis atrófica de fémur y tibia

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    Julio C Vejarano-Solano

    2013-04-01

    Full Text Available Objetivo: Describir y evaluar los resultados del tratamiento quirúrgico de pseudoartrosis atrófica de fémur o tibia mediante el uso de plasma rico en plaquetas (PRP autólogo. Material y métodos: Estudio descriptivo longitudinal de 20 casos (19 pacientes de pseudoartrosis atrófica de fémur o tibia tratados quirúrgicamente con PRP autólogo en el Hospital Nacional Cayetano Heredia de Lima, desde enero del 2008 hasta enero del 2012. El PRP fue preparado en el banco de sangre del hospital a partir de una unidad de sangre autóloga. Se evaluó el tiempo de consolidación ósea mediante radiografías seriadas y se registraron las complicaciones. Resultados: Se incluyeron 12 varones y 7 mujeres, con edad promedio de 33,8 años (15 a 67 años. Se evidenció consolidación en el 95% de los pacientes, el tiempo promedio para la consolidación fue 25 semanas. Se observó un caso de persistencia de infección con cultivo positivo a E. coli y un caso de refractura. Conclusiones: El PRP autólogo tiene un efecto beneficioso en la reparación del tejido óseo en casos de pseudoartrosis atrófica.

  2. Glycosylation of Vanillin and 8-Nordihydrocapsaicin by Cultured <em>Eucalyptus perrinianaem> Cells

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    Naoji Kubota

    2012-05-01

    Full Text Available Glycosylation of vanilloids such as vanillin and 8-nordihydrocapsaicin by cultured plant cells of <em>Eucalyptus perrinianaem> was studied. Vanillin was converted into vanillin 4-<em>O>-b-D-glucopyranoside, vanillyl alcohol, and 4-<em>O>-b-D-glucopyranosylvanillyl alcohol by <em>E. perriniana em>cells. Incubation of cultured <em>E. perrinianaem> cells with 8-nor- dihydrocapsaicin gave 8-nordihydrocapsaicin 4-<em>O>-b-D-glucopyranoside and 8-nordihydro- capsaicin 4-<em>O>-b-D-gentiobioside.

  3. APRESENTAÇÃO DO SISTEMA DE LOCAÇÃO DE VEÍCULOS CARLUGA

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    Melissa Heringer Silveira

    2016-11-01

    Full Text Available O objetivo deste trabalho é apresentar um sistema denominado CarLuga para gerir locações de veículos. Desenvolvido para ser utilizado em plataformas desktop, com uma máquina virtual Java em execução, este sistema possui as funcionalidades de cadastro, visualização, locação e devolução. Para proteger os dados, foi utilizada a criptografia MD5. Os dados inseridos no sistema são salvos em um servidor de banco de dados MySQL. As informações de aluguéis armazenadas no sistema é uma forma de diminuir a quantidade de documentos impressos e agilizar consultas. A ferramenta CarLuga mostra-se eficiente ao compactar informações em um único local, promovendo a diminuição de material impresso, gerando, desta forma, uma economia na aquisição de material de consumo na empresa podendo, este recurso, ser redirecionado para promover melhorias na mesma. A segurança proporcionada pela criptografia gera maior confiança por parte dos usuários, em que as atividades desenvolvidas são pessoais e restritas, sendo o acesso definido por perfil de usuário.

  4. Erosão hídrica pós-plantio em florestas de eucalipto na bacia do rio Paraná, no leste do Mato Grosso do Sul

    Directory of Open Access Journals (Sweden)

    Bernardo Moreira Cândido

    2014-10-01

    Full Text Available Nas regiões tropicais, o desgaste provocado no solo por ação das águas da chuva, ou seja, a erosão hídrica é a mais importante forma de degradação do solo. Visto que os plantios florestais de eucalipto estão inseridos em ecossistemas sensíveis às perturbações antrópicas em razão de ocorrência de plantações em solos com baixos teores de argila, com baixa fertilidade natural e grande parte das plantações estabelecidas em antigas áreas agrícolas e de pastagens degradadas, surge a necessidade do entendimento dos processos que regem a erosão hídrica e suas relações com as perdas de solo e água nos sistemas florestais. Objetivaram-se com este trabalho calcular os valores de erosividade da chuva (fator R - EI30, estimar a tolerância de perda de solo (T para as classes representativas nas áreas de estudo, avaliar as perdas de solo e água por erosão hídrica e verificar a influência, por meio de análise de componentes principais (ACP, de atributos físicos e matéria orgânica do solo sobre a erosão hídrica em florestas de eucalipto no estádio de pós-plantio. Os tratamentos constituíram de diferentes sistemas de manejo dos resíduos e da disposição de plantio (nível e desnível, em dois biomas distintos, Cerrado e Floresta, e solo descoberto. Os solos foram classificados como Latossolo Vermelho distrófico típico textura média-alta fase floresta (LVd1 e Latossolo Vermelho distrófico típico textura média-baixa fase cerrado (LVd2. O estudo foi realizado em áreas experimentais de plantio de eucalipto localizadas no município de Três Lagoas, na bacia do Rio Paraná, no leste do Mato Grosso do Sul. O índice de erosividade anual obtido foi de 6.792,7 MJ mm ha-1 h-1 ano-1. Os valores de T variaram de 9,0 a 11,0 Mg ha-1 ano-1, para o LVd2 e LVd1, respectivamente. As perdas de solo apresentaram valores em torno de 0 a 0,505 Mg ha-1 no LVd1 e de 0 a 0,853 Mg ha-1, no LVd2. A ACP evidenciou-se eficiente na

  5. Preferencia alimenticia del ácaro depredador <em>Balaustium> sp. en condiciones controladas

    Directory of Open Access Journals (Sweden)

    Muñoz Karen

    2009-04-01

    Full Text Available

    Se evaluó la preferencia de presas de <em>Balaustium> sp., enemigo natural de diferentes artrópodos plaga, y el cual es nativo de la Sabana de Bogotá. En unidades experimentales construidas con foliolos de plantas de rosa se colocaron independientemente individuos de <em>Balaustium> sp. y se registró el número de presas consumidas. De esta manera se determinó la preferencia de los tres estados móviles del ácaro depredador <em>Balaustium> sp. por diferentes edades de tres presas. Las especies y edades de las presas estudiadas fueron: huevos, ninfas y adultos de <em>Trialeurodes vaporariorumem>, huevos, ninfas y adultos de <em>Tetranychus urticaeem>, y larvas de primer y segundo instar y adultos de <em>Frankliniella occidentalisem>. Los estados menos desarrollados fueron preferidos, aunque se observó que los adultos del depredador tienen gran habilidad para consumir adultos de <em>T. vaporariorumem>. La presa preferida por las larvas de <em>Balaustium> sp. fue los huevos de <em>T. urticaeem> con una proporción de consumo de 0,54 de los huevos que se ofrecieron de esta presa; las deutoninfas del depredador eligieron huevos de <em>T. vaporariorumem> (0,537 o de <em>T. urticaeem> (0,497 y los adultos de <em>Balaustium> sp. prefrieron los huevos de <em>T. vaporariorumem> (0,588.

  6. Lacunas e falhas relacionadas à importação de produtos para a saúde em contêiner | Breaches and errors related to imports of health products in containers

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    Mariene Castilho D’Ávila

    2016-08-01

    Full Text Available Metade das mercadorias relacionadas à saúde, importadas via Porto do Rio de Janeiro, é armazenada em contêineres, 70% deles não possui sistema de refrigeração, por isto, não é possível assegurar a manutenção das recomendações do fabricante conforme exigem as regulamentações sanitárias estabelecidas. Estes contêineres geralmente são fabricados em aço, suas especificações são voltadas para possibilitar segurança e eficiência no transporte de mercadorias diversas e estão inseridos em um complexo contexto multimodal. O presente estudo objetivou obter conhecimento sobre este segmento de importação, na produção científica, legislação internacional, orientações técnicas e práticas operacionais atuais. As análises realizadas entre 2014 e 2015 revelaram que os contêineres são sensíveis ao ambiente em que estão depositados, 30% das medições apresentaram discrepâncias em relação às recomendações de temperatura para a armazenagem. Foram registradas temperaturas acima de 60°C. A exposição das mercadorias a estas condições foi estimada em no mínimo 38 dias. Não foram localizados estudos científicos sobre o acondicionamento de mercadorias para a saúde em contêineres. As produções técnica e legal são incipientes. Esses resultados reforçam a preocupação com a eficácia das mercadorias importadas e a necessidade de se promover o debate sobre a armazenagem em contêineres onde se estabeleçam requisitos mínimos de qualidade obrigatórios. ===================================================== Half of the health products imported through the Port of Rio de Janeiro are stored in containers. As 70% of these containers do not have refrigeration system, manufacturer’s recommendations –as required by health regulations- cannot be guaranteed. Containers are usually made of steel, aim to enable safe and efficient transportation of various goods, and are embedded in a complex multi-modal system. This

  7. Ultrasound-Assisted Extraction of Carnosic Acid and Rosmarinic Acid Using Ionic Liquid Solution from <em>Rosmarinus officinalisem>>

    Directory of Open Access Journals (Sweden)

    Chunjian Zhao

    2012-09-01

    Full Text Available Ionic liquid based, ultrasound-assisted extraction was successfully applied to the extraction of phenolcarboxylic acids, carnosic acid and rosmarinic acid, from <em>Rosmarinus officinalisem>. Eight ionic liquids, with different cations and anions, were investigated in this work and [C8mim]Br was selected as the optimal solvent. Ultrasound extraction parameters, including soaking time, solid–liquid ratio, ultrasound power and time, and the number of extraction cycles, were discussed by single factor experiments and the main influence factors were optimized by response surface methodology. The proposed approach was demonstrated as having higher efficiency, shorter extraction time and as a new alternative for the extraction of carnosic acid and rosmarinic acid from <em>R. officinalisem>> em>compared with traditional reference extraction methods. Ionic liquids are considered to be green solvents, in the ultrasound-assisted extraction of key chemicals from medicinal plants, and show great potential.

  8. Bilateral Simultaneous Avulsion Fractures of the Proximal Tibia in a 14-Year-Old Athlete with Vitamin-D Deficiency

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    Ziad Harb

    2015-01-01

    Full Text Available Fractures involving the proximal tibial epiphysis are rare and form 0.5% of all epiphyseal injuries. The specific anatomical and developmental features of the proximal tibial epiphysis make it vulnerable to unique patterns of fractures. Vitamin-D plays a vital role in bone homeostasis and its deficiency has an impact on fracture risk and healing. We present the first ever reported case of simultaneous bilateral proximal tibial physeal fractures in an athlete with vitamin-D deficiency. Treatment consisted of plaster immobilisation, and the patient made a full recovery and returned to preinjury level of activities. We report this case for its uniqueness and as an educational review of the importance of the developmental anatomy of the proximal tibia. We review the literature and discuss how the stages of the growing physis determine the type of fracture sustained.

  9. Antioxidant Profile of <em>Trifolium pratenseem> L.

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    Heidy Schwartsova

    2012-09-01

    Full Text Available In order to examine the antioxidant properties of five different extracts of <em>Trifolium pratenseem> L. (Leguminosae leaves, various assays which measure free radical scavenging ability were carried out: 1,1-diphenyl-2-picrylhydrazyl, hydroxyl, superoxide anion and nitric oxide radical scavenger capacity tests and lipid peroxidation assay. In all of the tests, only the H2O and (to some extent the EtOAc extracts showed a potent antioxidant effect compared with BHT and BHA, well-known synthetic antioxidants. In addition, <em>in vivo em>experiments were conducted with antioxidant systems (activities of GSHPx, GSHR, Px, CAT, XOD, GSH content and intensity of LPx in liver homogenate and blood of mice after their treatment with extracts of <em>T. pratenseem> leaves, or in combination with CCl4. Besides, in the extracts examined the total phenolic and flavonoid amounts were also determined, together with presence of the selected flavonoids: quercetin, luteolin, apigenin, naringenin and kaempferol, which were studied using a HPLC-DAD technique. HPLC-DAD analysis showed a noticeable content of natural products according to which the examined <em>Trifolium pratenseem> species could well be regarded as a promising new source of bioactive natural compounds, which can be used both as a food supplement and a remedy.

  10. Influence of estrogen deficiency and tibolone therapy on trabecular and cortical bone evaluated by computed radiography system in rats Influência da deficiência estrogênica e do tratamento com tibolona no osso trabecular e cortical avaliada pelo sistema de radiografia computadorizada em ratas

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    Ana Carolina Bergmann de Carvalho

    2012-03-01

    Full Text Available PURPOSE: To verify the effects of tibolone administration on trabecular and cortical bone of ovariectomized female rats by computed radiography system (CRS. METHODS: The experiment was performed on two groups of rats previously ovariectomized, one received tibolone (OVX+T while the other did not (OVX, those groups were compared to a control group (C not ovariectomized. Tibolone administration (1mg/day began thirty days after the ovariectomy and the treatment remained for five months. At last, the animals were euthanized and femurs and tibias collected. Computed radiographies of the bones were obtained and the digital images were used to determine the bone optical density and cortical thickness on every group. All results were statistically evaluated with significance set at POBJETIVO: Verificar o efeito da administração de tibolona no tecido ósseo cortical e trabecular de ratas castradas através de radiografia computadorizada. MÉTODOS: O experimento foi realizado em dois grupos de ratas previamente ooforectomizadas, onde um grupo recebeu tibolona (OVX+T e o outro não (OVX. Esses grupos foram comparados a um grupo controle (C não ooforectomizado. A administração de tibolona (1mg/dia começou trinta dias após a ooforectomia e o tratamento teve duração de cinco meses. No final, os animais foram mortos e fêmures e tibias coletados. As radiografias computadorizadas dos ossos foram obtidas e as imagens digitais usadas para determinar a densidade óssea e a espessura cortical em todos os grupos. Todos os resultados foram avaliados estatisticamente com significância estabelecida a 5%. RESULTADOS: A administração de tibolona mostrou ser benéfica apenas para análise densitométrica da cabeça do fêmur, apresentando maiores valores de densidade comparada ao grupo OVX. Nenhuma diferença significativa foi encontrada para espessura óssea cortical. CONCLUSÃO: A ooforectomia ocasionou perda óssea nas regiões analisadas e a tibolona

  11. Bioassay-Guided Antidiabetic Study of <em>Phaleria macrocarpaem> Fruit Extract

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    Mohd Z. Asmawi

    2012-04-01

    Full Text Available An earlier anti-hyperglycemic study with serial crude extracts of <em>Phaleria macrocarpaem> (PM fruit indicated methanol extract (ME as the most effective. In the present investigation, the methanol extract was further fractionated to obtain chloroform (CF, ethyl acetate (EAF, <em>n>-butanol (NBF and aqueous (AF fractions, which were tested for antidiabetic activity. The NBF reduced blood glucose (<em>p> < 0.05 15 min after administration, in an intraperitoneal glucose tolerance test (IPGTT similar to metformin. Moreover, it lowered blood glucose in diabetic rats by 66.67% (<em>p> em>< 0.05, similar to metformin (51.11%, glibenclamide (66.67% and insulin (71.43% after a 12-day treatment, hence considered to be the most active fraction. Further fractionation of NBF yielded sub-fractions I (SFI and II (SFII, and only SFI lowered blood glucose (<em>p em>< 0.05, in IPGTT similar to glibenclamide. The ME, NBF, and SFI correspondingly lowered plasma insulin (<em>p em>< 0.05 and dose-dependently inhibited glucose transport across isolated rat jejunum implying an extra-pancreatic mechanism. Phytochemical screening showed the presence of flavonoids, terpenes and tannins, in ME, NBF and SFI, and LC-MS analyses revealed 9.52%, 33.30% and 22.50% mangiferin respectively. PM fruit possesses anti-hyperglycemic effect, exerted probably through extra-pancreatic action. Magniferin, contained therein may be responsible for this reported activity.

  12. Caracterização de crianças e adolescentes atendidos por maus tratos em um hospital de emergência no município de Fortaleza-CE Characterization of maltreated children and adolescents taken into a paediatric emergency health care service in Fortaleza-CE-Brazil

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    Arcelina Maria da Silva

    2001-03-01

    Full Text Available O estudo teve como objetivo caracterizar o perfil da criança e adolescente maltratados e atendidos em um hospital de emergência, no Município de Fortaleza, Ceará. Utilizou-se a pesquisa documental retrospectiva com análise dos formulários da Comissão de Maus Tratos à Infância e Adolescência. Os resultados revelaram que o sexo masculino e a faixa etária de 1 a 5 anos foram os mais atingidos; o principal agressor é o pai biológico e os tipos de violência mais freqüentes foram o hematoma, o abuso sexual e as lesões por objetos cortantes. Conclui-se que o tema requer estudos aprofundados que modifiquem o ambiente em que a criança, adolescente e famílias estão inseridos.This study aimed to characterise the profile of the child and the adolescent who were maltreated and taken into paediatric emergency care in a hospital, in Fortaleza, Ceará. It was used a documented retrospective evaluation. The results showed that the children in the age group of 1-5 years were the most victimised as well as the children of the male sex. The main perpetrator was a biological father and the most frequent kind of violence were hematomas, sexual abuse and wounds by slashing objects. In conclusion, this subject needs to be more investigated for providing changes within the' environment where a child, adolescent and families were inserted.

  13. Alimentazione di <em>Marmota marmotaem> in praterie altimontane delle dolomiti bellunesi

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    Alessandro Rudatis

    2006-03-01

    Full Text Available Abstract The diet of <em>Marmota marmotaem> in the mountain prairie of south-eastern Italian Alps. Diet composition of two family groups of alpine marmots was investigated in two areas of the Agordino’s Dolomites (Italian Alps in June-September 2001, by means of microscopic analysis of faeces and of direct observation of feeding activity. During the whole period of activity, a high consume of Angiosperms was confirmed, especially plants in flower; among them the “graminoids” seemed to play an important role only during the initial part of the active period. Generally vegetative parts predominated over flowers. The ingestion of animal preys was not confirmed by the analysis of droppings. Comparing diet composition of the two groups, Graminaceae (<em>Poa>, <em>Phleum>, Compositae (<em>Achillea>, Cyperaceae/Juncaceae, Leguminosae (<em>Anthyllis>, Rosaceae, and Labiatae (<em>Prunella>, <em>Stachys> formed the bulk of marmot diet in the study areas. Diet showed low diversity considering the abundance of plant species in the surrounding environment. Food resources were probably used in relation to their easy digestibility, with a high content in proteins, sugar and water. The knowledge of vegetation features in relation to marmot trophic habits can represent a useful tool for the management of this species. Riassunto Il regime alimentare di due gruppi di Marmotta alpina è stato studiato in giugno-settembre 2001 in due aree delle Dolomiti agordine (SE Italia, attraverso l’analisi microscopica delle feci e l’osservazione diretta dell’attività alimentare. Durante tutto il periodo di attività si è notato un forte consumo di Angiosperme, specialmente piante a fiore, mentre le ”graminoidi” sembra giochino un ruolo importante all’inizio della stagione. In generale le parti vegetali predominano sui fiori. L’ingestione di prede animali non è stata

  14. <em>Ipomoea aquaticaem> Extract Shows Protective Action Against Thioacetamide-Induced Hepatotoxicity

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    A. Hamid A. Hadi

    2012-05-01

    Full Text Available In the Indian system of traditional medicine (Ayurveda it is recommended to consume <em>Ipomoea em>aquatica> to mitigate disorders like jaundice. In this study, the protective effects of ethanol extract of <em>I. aquaticaem> against liver damage were evaluated in thioacetamide (TAA-induced chronic hepatotoxicity in rats. There was no sign of toxicity in the acute toxicity study, in which Sprague-Dawley (SD rats were orally fed with <em>I. aquaticaem> (250 and 500 mg/kg for two months along with administration of TAA (i.p injection 200 mg/kg three times a week for two months. The results showed that the treatment of <em>I. aquaticaem> significantly lowered the TAA-induced serum levels of hepatic enzyme markers (ALP, ALT, AST, protein, albumin, bilirubin and prothrombin time. The hepatic content of activities and expressions SOD and CAT that were reduced by TAA were brought back to control levels by the plant extract supplement. Meanwhile, the rise in MDA level in the TAA receiving groups also were significantly reduced by <em>I. aquaticaem> treatment. Histopathology of hepatic tissues by H&E and Masson trichrome stains displayed that <em>I. aquaticaem> has reduced the incidence of liver lesions, including hepatic cells cloudy swelling, infiltration, hepatic necrosis, and fibrous connective tissue proliferation induced by TAA in rats. Therefore, the results of this study show that the protective effect of <em>I. aquaticaem> in TAA-induced liver damage might be contributed to its modulation on detoxification enzymes and its antioxidant and free radical scavenger effects. Moreover, it confirms a scientific basis for the traditional use of <em>I. aquaticaem> for the treatment of liver disorders.

  15. Classe social: conceitos e esquemas operacionais em pesquisa em saude

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    Rita Barradas Barata

    2013-08-01

    Full Text Available Discute-se a utilização do conceito de classe em pesquisas em saúde, as diferentes abordagens sociológicas de estratificação social e de estrutura de classes, o potencial explicativo do conceito em estudos de determinação social e desigualdades em saúde, os modelos de operacionalização elaborados para uso em pesquisas sociológicas, demográficas ou de saúde e os limites e possibilidades desses modelos. Foram destacados quatro modelos de operacionalização: de Singer para estudo da distribuição de renda no Brasil, adaptado por Barros para uso em pesquisas epidemiológicas; de Bronfman & Tuirán para o censo demográfico mexicano, adaptado por Lombardi et al para pesquisas epidemiológicas; de Goldthorpe para estudos socioeconômicos ingleses, adaptado pela Sociedade Espanhola de Epidemiologia; e o modelo de Wright para pesquisa em sociologia e ciência política, também usado em inquéritos populacionais em saúde. Em conclusão, conceitualmente cada um dos modelos apresentados é coerente com a concepção teórica que os embasam, mas não há como optar por qualquer deles, descartando os demais.

  16. Avaliação da qualidade de atendimento ambulatorial em pediatria em um hospital universitário

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    Selma Cristina Franco

    Full Text Available Estudou-se o ambulatório de Pediatria do Hospital das Clínicas da Unicamp, um serviço didático-assistencial que, inserido no Sistema Único de Saúde, presta assistência secundária e terciária para crianças de 0 a 18 anos. Foram aplicados 221 questionários entre clientes do ambulatório geral de pediatria e de uma de suas especialidades, permitindo comparar diversos indicadores de qualidade da assistência médica prestada. Evidenciou-se um bom nível de conhecimento dos responsáveis pelos usuários sobre seus problemas de saúde. Encontrou-se alto grau de satisfação dos mesmos, embora houvesse baixíssima vinculação entre médico e paciente. Com relação ao atendimento, 43,4% relataram problemas, mas apenas 17,6% propuseram sugestões para melhorá-lo. O tempo de espera nas consultas foi bastante longo. A clientela da especialidade se diferenciou da do ambulatório geral com relação a diversos indicadores.

  17. Effects of Testosterone and Growth Hormone on the Structural and Mechanical Properties of Bone by Micro-MRI in the Distal Tibia of Men With Hypopituitarism

    Science.gov (United States)

    Al Mukaddam, Mona; Rajapakse, Chamith S.; Bhagat, Yusuf A.; Wehrli, Felix W.; Guo, Wensheng; Peachey, Helen; LeBeau, Shane O.; Zemel, Babette S.; Wang, Christina; Swerdloff, Ronald S.; Kapoor, Shiv C.

    2014-01-01

    Context: Severe deficiencies of testosterone (T) and GH are associated with low bone mineral density (BMD) and increased fracture risk. Replacement of T in hypogonadal men improves several bone parameters. Replacement of GH in GH-deficient men improves BMD. Objective: Our objective was to determine whether T and GH treatment together improves the structural and mechanical parameters of bone more than T alone in men with hypopituitarism. Design and Subjects: This randomized, prospective, 2-year study included 32 men with severe deficiencies of T and GH due to panhypopituitarism. Intervention: Subjects were randomized to receive T alone (n = 15) or T and GH (n = 17) for 2 years. Main Outcome Measures: We evaluated magnetic resonance microimaging-derived structural (bone volume fraction [BVF] and trabecular thickness) and mechanical (axial stiffness [AS], a measure of bone strength) properties of the distal tibia at baseline and after 1 and 2 years of treatment. Results: Treatment with T and GH did not affect BVF, thickness, or AS differently from T alone. T treatment in all subjects for 2 years increased trabecular BVF by 9.6% (P hypopituitarism for 2 years did not improve the measured structural or mechanical parameters of the distal tibia more than T alone. However, testosterone significantly increased the structural and mechanical properties of trabecular bone but decreased most of these properties of cortical bone, illustrating the potential importance of assessing trabecular and cortical bone separately in future studies of the effect of testosterone on bone. PMID:24423356

  18. Gender and marital violence: points of view from a specialized Justice System

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    Nayara Magalhães

    2015-07-01

    Full Text Available O sistema de justiça tem sido alvo de reflexões acerca de sua eficiência e credibilidade frente às demandas das mulheres. Com as pressões dos movimentos feministas para visibilizar a violência doméstica, conjugal e familiar, o Estado tem sido pressionado a criar medidas e espaços especiais para o enfrentamento dessa problemática. A partir desse cenário, a propos- ta desse trabalho é apresentar uma pesquisa que re- vele nuances do sistema de justiça especializado do Distrito Federal, por meio da Delegacia Especial de Atendimento à Mulher, de Promotorias de Violência Doméstica e Familiar contra a Mulher e de Juizados de Violência Doméstica e Familiar contra a Mulher. Foram feitos estudos de caso e análise de conteúdo a partir dos registros de entrevistas com delegadas de polícia, promotores de justiça e juízas de direito em que foram analisadas percepções pessoais, profissionais, legais, teóricas, estatais e sistêmicas de oito pro- fissionais inseridos/as nesse sistema. O objetivo foi compreender como se dá a interação dessas pessoas com a Lei Maria da Penha, com os estudos de gênero e violência, com sujeitos inseridos em situação de violência e com o próprio sistema de justiça. Identi- ficamos algumas reflexões críticas sobre a condição da mulher e as desigualdades de gênero nas relações sociais e afetivas, todavia, alguns resquícios da cultura patriarcal legitimadora da violência fizeram-se presentes. 

  19. Fatores associados ao desempenho escolar: uma análise da proficiência em matemática dos alunos do 5º ano do ensino fundamental da rede municipal do Rio de Janeiro

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    Gabrielle A. Palermo

    2014-12-01

    Full Text Available O presente estudo está inserido na linha dos trabalhos que buscam compreender os diferentes fatores que influenciam o funcionamento das escolas da rede pública de ensino brasileira, bem como a sua qualidade, a partir da identificação de variáveis que impactam os resultados escolares, em particular o desempenho dos alunos medido pelos sistemas de avaliação utilizados pelo Inep/MEC. Os fatores que influenciam a proficiência são múltiplos e complexos, contemplando dinâmicas que atuam em diferentes níveis, desde o mais elementar, das características socioeconômicas e culturais dos indivíduos e de suas famílias, até as dinâmicas que ocorrem nas salas de aula, entre professores e alunos, e as características estruturais da escola. Alunos e seus responsáveis, diretores e professores das instituições de ensino são alguns dos atores relevantes que agem sobre o processo latente gerador de maiores ou menores rendimentos escolares. Mais especificamente, o objetivo do presente estudo é analisar os possíveis fatores que influenciam o desempenho escolar dos alunos do 5º ano do ensino fundamental, nas escolas públicas municipais da cidade do Rio de Janeiro. Para tanto, foram utilizados modelos hierárquicos com três níveis, que permitiram avaliar os efeitos de variáveis socioeconômicas e culturais e dos contextos familiares dos alunos, de práticas pedagógicas e estilos de ensinar dos docentes e, ainda, de políticas educacionais, aspectos da gestão e características das escolas. O estudo teve como fonte principal as informações provenientes da Prova Brasil 2007.

  20. Evaluation of the Surface Treatment on Bone Healing in a Transmucosal 1-mm Area of Implant Abutment: An Experimental Study in the Rabbit Tibia.

    Science.gov (United States)

    Gehrke, Sergio Alexandre; da Silva Neto, Ulisses Tavares

    2016-06-01

    The objective of the present study was to investigate the effect on bone tissue healing patterns in 1-mm area treated in the transmucosal surface of the abutment in the tibia of rabbits. Forty-six abutments were divided into two groups: control group (CG) with 14 abutments with smooth surface and experimental group (EG) with 32 abutments presenting a 1-mm area of the transmucosal surface treated through sandblasting with microparticles of titanium oxide followed by acid etching. Five samples of each group were analyzed using an optical laser profilometer for surface roughness characterization. Thirty-six Morse taper implants (3.5 mm in diameter and 7 mm in length) were inserted 1.5 mm subcrestal into the tibiae of nine rabbits. The implants were removed after 8, 10, and 12 weeks for histological analysis. The histological slides were prepared and analyzed qualitatively in relation to the new bone at the interface bone-abutment and quantitatively, in relation to bone height from the base of the implant. These data were computed and statistically compared inside the groups using analysis of variance and the U-test between groups for same time. Both groups exhibited bone growth in the direction and over the surface of the abutments, with good healing. However, the EG group showed an increased height of bone formation in the crestal direction, and highly significant differences were observed (p abutment with treatment of the surface facilitated the maintenance of bone height around the abutment compared with the same abutment with the totally smooth surface. © 2015 Wiley Periodicals, Inc.

  1. Leitura cultural na reportagem literária de Nicolau (1987-1996

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    Scheyla Joanne Horst

    2017-09-01

    Full Text Available O jornal cultural Nicolau circulou no Brasil entre 1987 e 1996, como um projeto viabilizado pela Secretaria de Estado da Cultura do Paraná. Interessa-nos aqui o gênero textual reportagem inserido no meio de comunicação em sua fase inicial. Como recorte neste estudo, analisamos cinco textos assinados pela jornalista Adélia Maria Lopes que pretendem, entre outros aspectos, revelar aos habitantes da capital paranaense, Curitiba, a cultura produzida nos subúrbios da cidade e também nos municípios longínquos. Nosso objetivo é discutir essas produções entendendo que o Jornalismo Literário promove uma união entre força comunicativa e qualidade estética em relatos de não ficção, o que promove uma leitura cultural mais eficiente. Para a análise documental utilizamos autores como Edvaldo Pereira Lima, Sergio Vilas Boas, Rogério Borges,Marcelo Bulhões e Cremilda Medina.

  2. Cyberbullying: percepções acerca do fenômeno e das estratégias de enfrentamento

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    Sidclay Bezerra Souza

    2014-01-01

    Full Text Available O cyberbullying, caracterizado como um dos tipos de violência em contexto educativo, apresenta-se como uma das principais causas do mal-estar vivido por seus protagonistas. O estudo inserido no Projeto Cyberbullying - o diagnóstico da situação em Portugal pretendeu compreender o fenômeno a partir das vivências de 118 estudantes do primeiro ano do Ensino Superior público português, que responderam a um questionário. Pudemos perceber a percepção dos alunos sobre o fenômeno e a importância que pares, professores e pais apresentam no enfrentamento e prevenção do cyberbullying. Tais resultados orientam-se no sentido do desenvolvimento sistêmico de comunidades que se fortalecem internamente para que cada um se sinta autorizado a intervir e a cuidar dos que nelas são vítimas de violência.

  3. ANÁLISE DA INSERÇÃO DOS PROJETOS DE PESQUISA DO BIOEN DENTRO DA CADEIA SUCROENERGÉTICA / ANALYSIS OF THE INTEGRATION OF RESEARCH PROJECTS OF BIOEN ORIENTED TO SUGARCANE CHAIN

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    D. S. F. Lamarca

    2014-12-01

    Full Text Available Este trabalho tem como objetivo analisar como estão inseridos os projetos de pesquisa do Programa BIOEN – FAPESP dentro da linha de fomento Auxílio à Pesquisa – Programa BIOEN – Regular. Para a realização deste trabalho, foram levantadas as informações disponíveis na biblioteca virtual da Fapesp dentro do Programa BIOEN todos os projetos em execução. Para contextualizar o tema, foi realizada uma pesquisa bibliográfica sobre o setor sucroenergético com o proposito de identificar as áreas de atuação dos projetos dentro da cadeia produtiva (campo, indústria e logística. Como resultado, foi percebido que há baixos investimentos em algumas áreas da cadeia sucroenergética, mas com maior enfoque de projetos na etapa campo e na etapa da indústria, havendo espaço para pesquisas com enfoque na logística da cadeia. 

  4. Cidade Maravilhosa, Cidade Partida, Cidade Vendida

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    Renato Nunes Bittencourt

    2015-02-01

    Full Text Available O artigo, inserido na celebração crítica dos 450 anos de fundação da cidade do Rio de Janeiro, aborda alguns elementos da dita magia da vida carioca, idealizada pela moderna opinião generalizada, analisando ainda elementos sociais, políticos e ideológicos que estabelecem na gestão pública da cidade disposições violentas, ratificadas pela criminalização e estigmatização da pobreza. Em nome dos projetos urbanísticos de modernização da cidade do Rio de Janeiro, concretiza-se a sua venda ao empresariado espoliador da coisa pública.

  5. Construção e caracterização de linhagens bacterianas Gram-negativas recombinantes com capacidade aumentada para biorremediar efluentes contaminados com mercúrio e arsênio.

    OpenAIRE

    Carolina Angélica da Silva Parada

    2012-01-01

    Este trabalho descreve a construção de plasmídeos para expressão e ancoragem de proteínas de alta afinidade a íons Hg2+ e As5+. Os genes merR e arsR de C. metallidurans foram inseridos no vetor que contém o sistema para expressão e ancoragem de proteínas heterólogas em bactérias Gram-negativas originando os plasmídeos pCM-Hg e pCM-As. MerR e ArsR foram produzidas sob comando do promotor pan. E. coli recombinantes apresentaram resistência 100% superior a Hg2+ e As5+. C. metallidurans/pCM-As ap...

  6. Panorama da cobertura vacinal brasileira com enfoque no município de Jataí, Goiás entre 2011 e 2015

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    Kaliny Xavier da Guarda

    2018-01-01

    Full Text Available Justificativa e Objetivo: O estudo da cobertura vacinal (CV demonstra a concretização das ações de políticas públicas no âmbito saúde, embora as metas determinadas sejam parcialmente alcançadas. Realizar o diagnóstico situacional da Cobertura Vacinal em menores de um ano em âmbito nacional, estadual (Goiás e municipal (Jataí no período de 2011 a 2015. Métodos: Foi realizado um estudo descritivo, do tipo transversal, baseado na coleta de dados secundários dos registros do SI-PNI sobre cobertura vacinal em menores de um ano na plataforma do Datasus. Resultados: A CV no país atingiu, no geral, índices superiores àqueles estabelecidos pela meta com algumas exceções. O estado de Goiás, juntamente com o município de Jataí, demonstraram resultados semelhantes em relação à CV por tipo de vacinas em menores de um ano, sendo evidentes os índices elevados de CV no referido município. Conclusão: A CV em menores de um ano em âmbito nacional revela índices superiores à meta. O estado de Goiás apresentou situação vacinal semelhante à observada na Região Centro-Oeste em que está inserido. A elevada CV por tipo de vacina em menores de um ano indica que o município de Jataí expressa efetividade no PNI.

  7. The diet of the fox (<em>Vulpes vulpesem> in woodlands of Orobie Alps (Lombardy region, Northern Italy / Alimentazione della Volpe (<em>Vulpes vulpesem> in aree boscate delle Alpi Orobie

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    Marco Cantini

    1991-07-01

    Full Text Available Abstract The diet of the fox was investigated by analysis of 273 scats, collected along standard trails from April to November 1987 and 1988. Food habits of foxes were described for three altitudinal ranges. Mammals, mainly <em>Clethrionomys glareolusem> and <em>Microtus multiplexem>, were the staple food (percentage of frequency 42.8%, followed by fruits and other vegetables (26.7% and 37.3% respectively. Birds, Invertebrates (mainly Insects and garbage were little eaten. The game species (ungulates, hares, pheasants occurred with a low frequency (8.4% in the diet. The trophic niche breadth varied little through the altitudinal ranges and the seasons. The trophic niche overlap between the fox and the genus <em>Martes> (190 scats of <em>M. martesem> and <em>M. foinaem> were examined is relatively wide (O=0.868. Riassunto La dieta della Volpe (<em>Vulpes vulpesem> in aree boscate delle Alpi Orobie (Val Lesina è stata indagata nel periodo aprile-novembre 1987 e 1988 mediante l'analisi di 273 feci, raccolte lungo percorsi-campione ricadenti in tre piani vegetazionali. I Mammiferi, in particolare <em>Clethrionomys glareolusem> e <em>Microtus multiplexem>, sono la componente principale della dieta (frequenza percentuale 42,8%. Rilevante è anche il consumo di frutti (soprattutto in estate e autunno e di altri vegetali (26,7% e 37,3% rispettivamente, mentre poco frequente è quello di Uccelli, Invertebrati e rifiuti. Complessivamente ridotta è l'azione predatoria della Volpe nei confronti delle specie di interesse venatorio (Ungulati, lepri, Galliformi. L'ampiezza della nicchia trofica mostra modeste variazioni stagionali e altitudinali. I1 grado di sovrapposizione tra la nicchia trofica della Volpe e quella del genere <em>Martes>, quest'ultima ricavata dall'analisi di 190 feci di Martora (<em>M. martesem> e Faina (<em>M. foinaem>, è elevato (O=0,868. Tuttavia, poiché in condizioni di

  8. Osservazioni in cattività sul ciclo stagionale del peso corporeo e sull'efficienza digestiva di <em>Pipistrellus kuhliiem> e <em>Hypsugo saviiem> (Chiroptera: Vespertilionidae

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    Gianna Dondini

    2003-10-01

    Full Text Available Molte specie di pipistrelli delle fasce climatiche temperato-fredde sono soggette a marcate variazioni stagionali di temperatura e disponibilità di cibo. L'accumulo di grasso in autunno è quindi un adattamento per trascorrere, in uno stato di profondo torpore definibile ibernazione, i mesi invernali, aumentando così la probabilità di sopravvivenza durante tale periodo. Nell?ambito di una attività pluriennale relativa alla raccolta, studio e, quando possibile, riabilitazione di pipistrelli in ambienti urbani, due esemplari di <em>Pipistrellus kuhliiem> (2 femmine e due di <em>Hypsugo saviiem> (1 maschio e 1 femmina, in entrambi casi giovani che ancora non avevano acquisito una sufficiente capacità nel volo e quindi non liberabili, sono stati raccolti nella pianura di Firenze durante l?estate del 1998 e mantenuti in condizioni di temperatura ambientale oscillante tra i 17 e i 22°C, in un contenitore di 150x40x30 cm. Ogni sera sono stati pesati, prima della somministrazione di cibo e acqua, con una bilancia elettronica con precisione di 0.1 g (modello Tanita 1479. L'alimentazione è stata a base di vermi della farina (<em>Tenebrio molitorem>. L?efficienza digestiva è calcolata nel seguente modo, su materiale disidratato: (quantità ingerita ? quantità escrementi/quantità ingerita*100. Per il calcolo di tale indice gli esemplari delle due specie sono stati separati e mantenuti per 24 ore a partire dalla successiva sera dell?ultima somministrazione, favorendo così lo svuotamento dell?intestino. Successivamente, per due giorni è stato fornito del cibo <em>ad libitumem>, pesando i singoli esemplari una volta terminata la fase di alimentazione, per determinare la quantità ingerita. Al termine abbiamo mantenuto gli esemplari a digiuno per 24 ore successive all?ultima somministrazione per permettere lo svuotamento dell?intestino. Gli escrementi raccolti sono stati posti in forno elettrico a 90 °C per 24 ore e successivamente pesati

  9. Effect of age on bone mineral density and micro architecture in the radius and tibia of horses: An Xtreme computed tomographic study

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    Schmidlin A

    2008-01-01

    Full Text Available Abstract Background The effect of age on the bone mineral density and microarchitecture of the equine radius and tibia was investigated. Fifty-six bones from 15 horses aged four to 21 years were used. There were nine geldings and six mares, and none of the horses had any disease influencing bone properties. Xtreme computed tomography was used to evaluate a 9-mm segment of the diaphysis and metaphysis of each bone. The following variables were determined: length of the bone, circumference and diameter in the frontal and sagittal planes in the middle of the bone. Diaphysis: total volume, bone volume, bone volume ratio, slice area, bone area, marrow area, cortical and marrow thickness, bone mineral density, polar moment of inertia of the cortex. Metaphysis: total area, bone area, cortical bone area, cortical thickness, bone mineral density, bone mineral density in the cortex, bone mineral density in the trabecular region, trabecular number, trabecular thickness, trabecular separation, polar moment of inertia of the metaphysis, polar moment of inertia of the cortex of the metaphysis. Results Bone density and microarchitecture were not affected by breed or gender. However, the microarchitecture varied with the age of the horse; the number of trabeculae decreased significantly and the distance between trabeculae increased significantly with increasing age. There were no significant differences between bones of the left and right limbs or between the radius and tibia. Conclusion The variables investigated did not differ between geldings and mares. However, there were age-related changes in the microstructure of the bones. Further experimental studies are necessary to determine whether these changes reduce bone strength. Age-related changes in the bones were seen and may explain the higher incidence of fractures and fissures in older horses.

  10. Effect of age on bone mineral density and micro architecture in the radius and tibia of horses: An Xtreme computed tomographic study

    Science.gov (United States)

    Fürst, A; Meier, D; Michel, S; Schmidlin, A; Held, L; Laib, A

    2008-01-01

    Background The effect of age on the bone mineral density and microarchitecture of the equine radius and tibia was investigated. Fifty-six bones from 15 horses aged four to 21 years were used. There were nine geldings and six mares, and none of the horses had any disease influencing bone properties. Xtreme computed tomography was used to evaluate a 9-mm segment of the diaphysis and metaphysis of each bone. The following variables were determined: length of the bone, circumference and diameter in the frontal and sagittal planes in the middle of the bone. Diaphysis: total volume, bone volume, bone volume ratio, slice area, bone area, marrow area, cortical and marrow thickness, bone mineral density, polar moment of inertia of the cortex. Metaphysis: total area, bone area, cortical bone area, cortical thickness, bone mineral density, bone mineral density in the cortex, bone mineral density in the trabecular region, trabecular number, trabecular thickness, trabecular separation, polar moment of inertia of the metaphysis, polar moment of inertia of the cortex of the metaphysis. Results Bone density and microarchitecture were not affected by breed or gender. However, the microarchitecture varied with the age of the horse; the number of trabeculae decreased significantly and the distance between trabeculae increased significantly with increasing age. There were no significant differences between bones of the left and right limbs or between the radius and tibia. Conclusion The variables investigated did not differ between geldings and mares. However, there were age-related changes in the microstructure of the bones. Further experimental studies are necessary to determine whether these changes reduce bone strength. Age-related changes in the bones were seen and may explain the higher incidence of fractures and fissures in older horses. PMID:18221526

  11. Effect of age on bone mineral density and micro architecture in the radius and tibia of horses: an Xtreme computed tomographic study.

    Science.gov (United States)

    Fürst, A; Meier, D; Michel, S; Schmidlin, A; Held, L; Laib, A

    2008-01-25

    The effect of age on the bone mineral density and microarchitecture of the equine radius and tibia was investigated. Fifty-six bones from 15 horses aged four to 21 years were used. There were nine geldings and six mares, and none of the horses had any disease influencing bone properties. Xtreme computed tomography was used to evaluate a 9-mm segment of the diaphysis and metaphysis of each bone. The following variables were determined: length of the bone, circumference and diameter in the frontal and sagittal planes in the middle of the bone.Diaphysis: total volume, bone volume, bone volume ratio, slice area, bone area, marrow area, cortical and marrow thickness, bone mineral density, polar moment of inertia of the cortex.Metaphysis: total area, bone area, cortical bone area, cortical thickness, bone mineral density, bone mineral density in the cortex, bone mineral density in the trabecular region, trabecular number, trabecular thickness, trabecular separation, polar moment of inertia of the metaphysis, polar moment of inertia of the cortex of the metaphysis. Bone density and microarchitecture were not affected by breed or gender. However, the microarchitecture varied with the age of the horse; the number of trabeculae decreased significantly and the distance between trabeculae increased significantly with increasing age. There were no significant differences between bones of the left and right limbs or between the radius and tibia. The variables investigated did not differ between geldings and mares. However, there were age-related changes in the microstructure of the bones. Further experimental studies are necessary to determine whether these changes reduce bone strength. Age-related changes in the bones were seen and may explain the higher incidence of fractures and fissures in older horses.

  12. Net Energy, CO2 Emission and Land-Based Cost-Benefit Analyses of <em>Jatropha> em>Biodiesel: A Case Study of the Panzhihua Region of Sichuan Province in China

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    Xiangzheng Deng

    2012-06-01

    Full Text Available Bioenergy is currently regarded as a renewable energy source with a high growth potential. Forest-based biodiesel, with the significant advantage of not competing with grain production on cultivated land, has been considered as a promising substitute for diesel fuel by many countries, including China. Consequently, extracting biodiesel from <em>Jatropha> curcasem> has become a growing industry. However, many key issues related to the development of this industry are still not fully resolved and the prospects for this industry are complicated. The aim of this paper is to evaluate the net energy, CO2 emission, and cost efficiency of <em>Jatropha> biodiesel as a substitute fuel in China to help resolve some of the key issues by studying data from this region of China that is well suited to growing <em>Jatropha>. Our results show that: (1 <em>Jatropha> biodiesel is preferable for global warming mitigation over diesel fuel in terms of the carbon sink during <em>Jatropha> tree growth. (2 The net energy yield of <em>Jatropha> biodiesel is much lower than that of fossil fuel, induced by the high energy consumption during <em>Jatropha> plantation establishment and the conversion from seed oil to diesel fuel step. Therefore, the energy efficiencies of the production of <em>Jatropha> and its conversion to biodiesel need to be improved. (3 Due to current low profit and high risk in the study area, farmers have little incentive to continue or increase <em>Jatropha> production. (4 It is necessary to provide more subsidies and preferential policies for <em>Jatropha> plantations if this industry is to grow. It is also necessary for local government to set realistic objectives and make rational plans to choose proper sites for <em>Jatropha> biodiesel development and the work reported here should assist that effort. Future research focused on breading high-yield varieties, development of efficient field

  13. Treatment of type II and type III open tibia fractures in children.

    Science.gov (United States)

    Bartlett, C S; Weiner, L S; Yang, E C

    1997-07-01

    To determine whether severe open tibial fractures in children behave like similar fractures in adults. A combined retrospective and prospective review evaluated treatment protocol for type II and type III open tibial fractures in children over a ten-year period from 1984 to 1993. Twenty-three fractures were studied in children aged 3.5 to 14.5 (18 boys and 5 girls). There were six type II, eight type IIIA, and nine type IIIB fractures. Type I fractures were not included. Seven fractures were comminuted with significant butterfly fragments or segmental patterns. Treatment consisted of adequate debridement of soft tissues, closure of dead space, and stabilization with external fixation. Bone debridement only included contaminated devitalized bone or devitalized bone without soft tissue coverage. Bone that could be covered despite periosteal stripping was preserved. Clinical and roentgenographic examinations were used to determine time to union. All fractures in this series healed between eight and twenty-six weeks. Wound coverage included two flaps, three skin grafts, and two delayed primary closures. No bone grafts were required. There were no deep infections, growth arrests, or malunions. Follow-up has ranged from six months to four years. Open tibia fractures in children differ from similar fractures in adults in the following ways: soft tissues have excellent healing capacity, devitalized bone that is not contaminated or exposed can be saved and will become incorporated, and external fixation can be maintained until the fracture has healed. Periosteum in young children can form bone even in the face of bone loss.

  14. Threatening “the Good Order”: West Meets East in Cecil B. DeMille’s <em>The Cheatem> and John Updike’s <em>Terrorist>

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    Bradley M. Freeman

    2011-12-01

    Full Text Available

    Despite almost a hundred years of separation, both Cecil B. DeMille’s film <em>The Cheatem> (1915 and John Updike’s novel <em>Terrorist> (2006 deploy a clear-cut territorial divide between Western and Eastern spaces in order to envision a unified American space. These narratives superimpose a “natural” division on these historically opposed spaces and thereby suggest that any contact between these spaces will have dangerous consequences. These consequences include the potential dissolution and eventual destruction of American productivity, surveillance, and territorial integrity. DeMille’s film and Updike’s novel represent America as a nation-state that must be protected from the East. In 1915, <em>The Cheatem> warned against an interracial America and the upsurge in immigration that characterized the turn of the century. Nearly a century later, <em>Terrorist> presupposes an interracial America but still constructs an East that threatens the security of America. While registering the particular concerns of two distinct historical moments, these narratives represent a larger attempt in American aesthetics to imagine an East that jeopardizes the utopian possibilities of an overly idealized American space.

  15. <em>In Vitro em>Phytotoxicity and Antioxidant Activity of Selected Flavonoids

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    Rita Patrizia Aquino

    2012-05-01

    Full Text Available The knowledge of flavonoids involved in plant-plant interactions and their mechanisms of action are poor and, moreover, the structural characteristics required for these biological activities are scarcely known. The objective of this work was to study the possible <em>in vitro em>phytotoxic effects of 27 flavonoids on the germination and early radical growth of <em>Raphanus sativus em>L.> and <em>Lepidium sativumem> L., with the aim to evaluate the possible structure/activity relationship. Moreover, the antioxidant activity of the same compounds was also evaluated. Generally, in response to various tested flavonoids, germination was only slightly affected, whereas significant differences were observed in the activity of the various tested flavonoids against radical elongation. DPPH test confirms the antioxidant activity of luteolin, quercetin, catechol, morin, and catechin. The biological activity recorded is discussed in relation to the structure of compounds and their capability to interact with cell structures and physiology. No correlation was found between phytotoxic and antioxidant activities.

  16. Uso de transdutores de fluxo de calor no estudo da transferência de calor em alimentos embalados The use of heat flux transducers to study heat transfer in canned foods

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    B. Carciofi

    2002-12-01

    Full Text Available A densidade de fluxo de calor que atravessa uma superfície é classicamente determinada mediante a medição das temperaturas apropriadas e da aplicação da Lei de Fourier. Uma alternativa a esse procedimento é a utilização de transdutores de fluxo de calor, os quais geram um sinal elétrico proporcional ao fluxo térmico que os atravessa. Neste trabalho, processos de aquecimento e de resfriamento de alimentos foram estudados em laboratório, utilizando-se um recipiente de vidro cilíndrico para simular uma embalagem. Dois transdutores de fluxo de calor a gradiente tangencial foram previamente instalados no recipiente, revestindo completamente a superfície lateral do mesmo. O recipiente contendo a amostra foi inserido em banho de água circulante à temperatura constante. Os sinais fornecidos pelos transdutores e por termopares inseridos no interior do recipiente foram registrados por um sistema de aquisição de dados computadorizado. Os resultados obtidos com o uso dos transdutores foram comparados com aqueles obtidos através de balanços de energia realizados a partir dos dados experimentais de evolução temporal das temperaturas da amostra junto à superfície interna da embalagem e no centro da mesma. A comparação mostrou que os transdutores de fluxo de calor a gradiente tangencial puderam determinar os fluxos de calor, com tempo de resposta característico dos termopares. Os resultados apresentados mostraram a viabilidade de utilização desses fluxímetros no estudo não destrutivo e não invasivo dos processos de aquecimento e de resfriamento de alimentos, fornecendo informações complementares àquelas obtidas pelo uso de termopares instalados no interior da embalagem.Heat flux determination in thermal processes is classically carried out by appropriate temperature measurements and the application of the Fourier Law. An alternative to this procedure is to determine the heat flux that crosses a surface using heat flux

  17. Technique for measuring the accumulation of /sup 99/Tcsup(m) stannous-ethane-1-hydroxy-1, 1-diphosphonate in the canine tibia

    Energy Technology Data Exchange (ETDEWEB)

    Khan, R A [Royal Postgraduate Medical School, London (UK); Best, J K; Lavender, J P

    1978-01-01

    An experimental technique is described to measure the accumulation of /sup 99/Tcsup(m)-stannous-ethane-1-hydroxy-1, 1-diphosphonate (/sup 99/Tcsup(m)-EHDP) in the canine tibia. The method involves infusion at a constant rate of known amounts of /sup 99/Tcsup(m)-EHDP into the nutrient artery supplying the tibial bone. The accumulation of the diphosphonate in bone was measured by an external sodium iodide, NaI(Tl), scintillation detector. Results are presented showing that for small amounts of /sup 99/Tcsup(m)-EHDP (0.004 to 0.300 mg per hour) the accumulation is a nearly linear function with time for 60 minutes, after which the uptake may become variable with either a plateau formation or considerable fluctuation of activity.

  18. Os dois Oskar Matzerath

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    Elisandra de Souza Pedro

    2010-01-01

    Full Text Available O presente trabalho analisa a estrutura narrativa do romance O tambor (Die Blechtrommel de Günter Grass e do filme homônimo dirigido por Volker Schlöndorff, observando a forma como o romancista articula a construção complexa de seu foco narrativo e como o cineasta trabalha essa estrutura em seu filme, o que resulta em diferentes formas de perceber e interpretar tanto o narrador-personagem quanto o universo no qual está inserido, levando em consideração que a discussão sobre adaptações de obras literárias em realizações cinematográficas já passou da discussão moralizante da fidelidade ou traição para uma discussão menos valorativa. O artigo enfatiza o estudo da intertextualidade entre a adaptação cinematográfica e o romance original, tendo como pontos de observação o tipo de seleção feita no processo da realização fílmica, a concretização visual do texto literário, a atualização de determinados temas abordados na obra e o foco narrativo, por exemplo.

  19. Aplicação de análises multivariadas para determinação da casta de abelhas Apis mellifera L. (Africanizadas, obtidas em laboratório Aplication of multivariate analysis for caste determination in Honeybees Apis mellifera L. (Africanized obtained in laboratory conditions

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    Izabel Christina da Silva

    2005-04-01

    Full Text Available A técnica de criação de larvas de abelhas Apis mellifera em laboratório tem sido utilizada freqüentemente em estudos de desenvolvimento larval, determinação de castas e, mais recentemente, em testes de patogênese. A quantidade e a qualidade do alimento fornecido às larvas em laboratório podem levar à formação de castas diferentes (rainha, operárias ou intercastas. Neste trabalho, crias de abelhas africanizadas foram desenvolvidas a partir de larvas de 18-24 horas de idade até atingir a fase adulta, utilizando-se durante a alimentação, 4, 15, 25, 50 e 70 µl de dieta por larva, respectivamente, do primeiro ao quinto dia de alimentação. Para determinar se as abelhas adultas obtidas em laboratório eram pertencentes à casta de operárias, de rainhas ou se eram intermediárias (intercastas, foram comparadas com um controle constituído por operárias e rainhas da mesma origem das operárias desenvolvidas no laboratório, utilizando-se o peso e as medidas dos seguintes caracteres: a comprimento da cabeça; b largura da cabeça; c comprimento do olho composto; d largura do olho composto; e comprimento do mesoscuto; f largura do mesoscuto; g comprimento da tíbia; h largura da tíbia. Foram utilizadas a Função Discriminante de Anderson e a técnica de Componentes Principais, de modo a efetuar a discriminação das castas das abelhas adultas obtidas em laboratório em relação àquelas desenvolvidas naturalmente. Entre os caracteres avaliados, os que menos contribuíram para a determinação das castas foram o comprimento do mesoscuto e a largura da cabeça, sendo, portanto, dispensáveis em estudos futuros.Apis mellifera honeybee brood rearing in laboratory conditions has been frequentely used to search for larval development, caste determination, and more recently for tests of pathogenesis. The amount and quality of food received by larvae during the feeding time can produce different castes (queen, worker or intercaste. In the

  20. Busca de estruturas em grandes escalas em altos redshifts

    Science.gov (United States)

    Boris, N. V.; Sodré, L., Jr.; Cypriano, E.

    2003-08-01

    A busca por estruturas em grandes escalas (aglomerados de galáxias, por exemplo) é um ativo tópico de pesquisas hoje em dia, pois a detecção de um único aglomerado em altos redshifts pode por vínculos fortes sobre os modelos cosmológicos. Neste projeto estamos fazendo uma busca de estruturas distantes em campos contendo pares de quasares próximos entre si em z Â3 0.9. Os pares de quasares foram extraídos do catálogo de Véron-Cetty & Véron (2001) e estão sendo observados com os telescópios: 2,2m da University of Hawaii (UH), 2,5m do Observatório de Las Campanas e com o GEMINI. Apresentamos aqui a análise preliminar de um par de quasares observado nos filtros i'(7800 Å) e z'(9500 Å) com o GEMINI. A cor (i'-z') mostrou-se útil para detectar objetos "early-type" em redshifts menores que 1.1. No estudo do par 131046+0006/J131055+0008, com redshift ~ 0.9, o uso deste método possibilitou a detecção de sete objetos candidatos a galáxias "early-type". Num mapa da distribuição projetada dos objetos para 22 escala. Um outro argumento em favor dessa hipótese é que eles obedecem uma relação do tipo Kormendy (raio equivalente X brilho superficial dentro desse raio), como a apresentada pelas galáxias elípticas em z = 0.

  1. A comunicação como barreira à inclusão de alunos com deficiência visual em aulas de mecânica Communication as a barrier for including visual handicapped pupils in mechanics classes

    Directory of Open Access Journals (Sweden)

    Eder Pires de Camargo

    2010-01-01

    Full Text Available O presente artigo encontra-se inserido em um estudo que busca compreender as principais barreiras para a inclusão de alunos com deficiência visual no contexto do ensino de física. Focalizando aulas de mecânica, analisa as dificuldades comunicacionais entre licenciandos e discentes com deficiência visual. Para tal, enfatiza as estruturas empírica e semântico-sensorial das linguagens utilizadas, indicando fatores geradores de dificuldades de acessibilidade às informações veiculadas. Recomenda, ainda, alternativas que se destinam a dar condições à participação efetiva do discente com deficiência visual no processo comunicativo. Conclui afirmando que a comunicação representa a principal barreira à participação efetiva de alunos com deficiência visual em aulas de mecânica, e enfatiza a importância da criação de canais comunicacionais adequados como condição básica à inclusão desses alunos.This paper is a part of a broader study aiming to understand the main barriers for including visual handicapped pupils in physics' teaching contexts. It analyzes communication difficulties between future physics teachers and visual handicapped pupils during Mechanics classes. It emphasizes the empirical and semantic-sensorial structures of the languages used, indicating factors which produce the accessibility difficulties for the spread of information. It recommends alternatives in order to make possible the effective participation of visual handicapped pupils in the communicative process. It concludes that communication represents the main barrier to the effective visual handicapped pupils' participation in optics classes and emphasizes the importance of creating communicatively appropriate channels as a basic condition for including these students.

  2. Encapsulation-Induced Stress Helps <em>Saccharomyces cerevisiae em>Resist Convertible Lignocellulose Derived Inhibitors

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    Johan O. Westman

    2012-09-01

    Full Text Available The ability of macroencapsulated <em>Saccharomyces cerevisiae em>CBS8066<em> em>to withstand readily and not readily <em>in situem> convertible lignocellulose-derived inhibitors was investigated in anaerobic batch cultivations. It was shown that encapsulation increased the tolerance against readily convertible furan aldehyde inhibitors and to dilute acid spruce hydrolysate, but not to organic acid inhibitors that cannot be metabolized anaerobically. Gene expression analysis showed that the protective effect arising from the encapsulation is evident also on the transcriptome level, as the expression of the stress-related genes <em>YAP1em>, <em>ATR1em> and <em>FLR1em> was induced upon encapsulation. The transcript levels were increased due to encapsulation already in the medium without added inhibitors, indicating that the cells sensed low stress level arising from the encapsulation itself. We present a model, where the stress response is induced by nutrient limitation, that this helps the cells to cope with the increased stress added by a toxic medium, and that superficial cells in the capsules degrade convertible inhibitors, alleviating the inhibition for the cells deeper in the capsule.

  3. Morphological identification of the Soprano Pipistrelle (<em>Pipistrellus pygmaeusem> Leach, 1825 in Croatia.

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    Igor Pavlinić

    2008-07-01

    Full Text Available Abstract After the discovery of two different phonic types within the common pipistrelle (<em>Pipistrellus pipistrellusem>, mtDNA analysis confirmed the existence of two separate species named as common pipistrelle (<em>P. pipistrellusem> and soprano pipistrelle (<em>P. pygmaeusem>. The discrimination of these two cryptic species using external characters and measures has proved to be somewhat problematic. We examined two colonies of soprano pipistrelle from Donji Miholjac, Croatia. As a result, only two characters proved to be of help for field identification: wing venation (89% of cases and penis morphology and colour for males. The difference in length between the 2nd and 3rd phalanxes of the 3rd finger should be discarded as diagnostic trait between <em>P. pipistrellusem> and <em>P. pygmaeusem> in Croatia. Riassunto Identificazione su basi morfologiche del pipistrello pigmeo (<em>Pipistrellus pygmeausem>, Leach, 1825 in Croazia. A seguito della descrizione di due differenti "tipi fonici" nel pipistrello nano (<em>Pipistrellus pipistrellusem> e della successiva conferma su basi genetiche dell'esistenza di due specie distinte, designate come pipistrello nano (<em>P. pipistrellusem> e pipistrello pigmeo (<em>P. pygmaeusem>, la distinzione delle due specie in base a caratteristiche morfologiche esterne si è dimostrata un problema di difficile soluzione. Sulla base delle caratteristiche distintive e delle differenze biometriche proposte da altri Autori, sono state esaminate due colonie di pipistrello pigmeo a Donji Miholjac, in Croazia. I risultati ottenuti evidenziano che, tra tutti i potenziali caratteri sinora proposti, solo due risultano utili per un'identificazione diretta sul campo: la venatura delle ali, risultata utile alla discriminazione nell'89% degli esemplari analizzati, e la colorazione e morfologia del pene nei maschi. La

  4. Altitudinal distribution of the common longeared bat <em>Plecotus auritusem> (Linnaeus, 1758 and grey long-eared bat <em>Plecotus austriacusem> (J. B. Fischer, 1829 (Chiroptera, Vespertilionidae in the Tatra mountains (southern Poland

    Directory of Open Access Journals (Sweden)

    Krzysztof Piksa

    2006-03-01

    Full Text Available Riassunto Distribuzione altitudinale di Orecchione bruno (<em>Plecotus auritusem> e Orecchione meridionale (<em>Plecotus austriacusem> nei Monti Tatra (Polonia meridionale. Vengono riportati nuovi dati relativi alla distribuzione altitudinale nei Monti Tatra (Polonia meridionale di <em>Plecotus auritusem> e <em>P. austriacusem>. Tali segnalazioni incrementano le conoscenze relative alla presenza di questi chirotteri a quote elevate, in particolare per la Polonia. In inverno <em>P. auritusem> è stato rinvenuto a 1921 m s.l.m. mentre in estate è stato rinvenuto a 2250 m s.l.m.; in aggiunta, sono stati ritrovati resti ossei a 1929 m s.l.m. <em>P. austriacusem> è stato segnalato in ibernazione a 1294 m s.l.m.

  5. Action of Chitosan Against <em>Xanthomonas> Pathogenic Bacteria Isolated from <em>Euphorbia pulcherrimaem>

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    Yanli Wang

    2012-06-01

    Full Text Available The antibacterial activity and mechanism of two kinds of chitosan were investigated against twelve <em>Xanthomonas> strains recovered from <em>Euphorbia pulcherrimaem>. Results indicated that both chitosans markedly inhibited bacterial growth based on OD loss. Furthermore, the release of DNA and RNA from three selected strains was increased by both chitosans. However, the release of intracellular proteins was inhibited by both chitosans at different concentration and incubation times, except chitosan A at 0.1 mg/mL for 0.5 h incubation and 0.2 mg/mL for 2.0 h incubation increased the release of proteins, indicating the complexity of the interaction and cell membranes, which was affected by incubation time, bacterial species, chitosan type and concentration. Transmission electron microscopic observations revealed that chitosan caused changes in protoplast concentration and surface morphology. In some cells, the membranes and walls were badly distorted and disrupted, while other cells were enveloped by a thick and compact ribbon-like layer. The contrary influence on cell morphology may explain the differential effect in the release of material. In addition, scanning electron microscope and biofilm formation test revealed that both chitosans removed biofilm biomass. Overall, this study showed that membrane and biofilm play an important role in the antibacterial mechanism of chitosan.

  6. Study of the <em>in Vitroem> Antiplasmodial, Antileishmanial and Antitrypanosomal Activities of Medicinal Plants from Saudi Arabia

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    Nawal M. Al-Musayeib

    2012-09-01

    Full Text Available The present study investigated the <em>in vitroem> antiprotozoal activity of sixteen selected medicinal plants. Plant materials were extracted with methanol and screened <em>in vitroem> against erythrocytic schizonts of <em>Plasmodium falciparumem>, intracellular amastigotes of <em>Leishmania infantum em>and <em>Trypanosoma cruzi em>and free trypomastigotes of<em> T. bruceiem>. Cytotoxic activity was determined against MRC-5 cells to assess selectivity<em>. em>The criterion for activity was an IC50 < 10 µg/mL (4. Antiplasmodial activity was found in the<em> em>extracts of<em> em>>Prosopis julifloraem> and <em>Punica granatumem>. Antileishmanial activity<em> em>against <em>L. infantumem> was demonstrated in <em>Caralluma sinaicaem> and <em>Periploca aphylla.em> Amastigotes of<em> T. cruzi em>were affected by the methanol extract of<em> em>>Albizia lebbeckem>> em>pericarp, <em>Caralluma sinaicaem>,> Periploca aphylla em>and <em>Prosopius julifloraem>. Activity against<em> T. brucei em>was obtained in<em> em>>Prosopis julifloraem>. Cytotoxicity (MRC-5 IC50 < 10 µg/mL and hence non-specific activities were observed for<em> em>>Conocarpus lancifoliusem>.>

  7. <em>Trichoderma harzianumem> como promotor del crecimiento vegetal del maracuyá (<em>Passiflora edulisem> var. <em>flavicarpa> Degener

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    Cubillos-Hinojosa Juan

    2009-04-01

    Full Text Available

    Se realizó un experimento en condiciones de laboratorio e invernadero, con el propósito de evaluar el efecto de la cepa nativa TCN-014 y la cepa comercial TCC-005 de <em>Trichoderma harzianumem> sobre la germinación y el crecimiento temprano del maracuyá. Se adecuaron inóculos de 104, 106 y 108 conidias/mL para cada cepa y se aplicaron a semillas de maracuyá; se evaluó el número de semillas germinadas durante 15 días; se calculó el porcentaje de germinación, el índice de velocidad de germinación y el tiempo medio de germinación. Posteriormente las semillas germinadas se llevaron a condiciones de invernadero y transcurridos dos meses se midió la altura de las plántulas, el grosor del tallo, el número de hojas, la longitud de la raíz y el peso seco total. Todos los tratamientos estimularon la germinación de las semillas y el desarrollo de las plántulas; sin embargo la cepa nativa en concentraciones 106 y 108 conidias/mL mostró resultados superiores frente a la cepa comercial. Los resultados sugieren una acción efectiva de <em>T. harzianumem> como promotor de crecimiento vegetal, mostrando que tiene potencial para la elaboración de un bioproducto útil para el manejo ecológico del cultivo de maracuyá.

  8. Solidariedade, competitividade e reflexão ética nos contextos da nova economia e da economia solidária

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    Nardi, Henrique Caetano

    2009-01-01

    Full Text Available O artigo visa a discutir as implicações éticas da inserção no mercado de trabalho no contexto da nova economia e da Economia Solidária. As análises do contexto sócio-econômico em voga usualmente contrapõem a solidariedade/associativismo à competitividade/individualismo. Buscando problematizar essa suposta oposição, investigamos como a solidariedade é compreendida por 40 jovens divididos/as em dois grupos: 20 trabalhadores/as inseridos em ocupações ligadas à telefonia móvel, à informática e internet e ao setor bancário pós-reestruturação e 20 trabalhadores/as vinculados a projetos de Economia Solidária e associativismo. Por meio de entrevistas inspiradas na abordagem biográfica e da resolução de um dilema ético buscamos entender quais os acontecimentos que marcam a vida destes/as jovens e influenciam as formas de inserção no laço social, do ponto de vista do trabalho e das relações sociais

  9. O caráter único de Morro Vermelho na região metropolitana de Belo Horizonte

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    Simone Marques de Souza Safe

    2013-12-01

    Full Text Available A expressão histórica e cultural de uma sociedade no ambiente físico permite a contemplação da vivência da comunidade em diversos períodos morfológicos, conferindo ao habitat uma identidade própria. O presente artigo tem como objetivo contrapor a ausência de tecido urbano em Morro Vermelho, distrito do município de Caeté, Minas Gerais, à evolução urbana da Região Metropolitana de Belo Horizonte, na qual está inserido, buscando compreender os motivos pelos quais essa ocupação territorial estagnou. Além disso, o trabalho visa aplicar os conceitos da Escola Italiana e da Escola Inglesa de Morfologia Urbana, comparando a análise feita no Distrito de Morro Vermelho em 2013 com a formação de Belo Horizonte, quando ainda era Arraial Curral Del Rei. Para o desenvolvimento deste artigo foi realizado um trabalho de campo no distrito de Morro Vermelho e posterior análise dos dados coletados utilizando os conceitos de Morfologia Urbana.

  10. Sobre errâncias, imprecisões e ambivalências: notas sobre as trajetórias de jovens cariocas e sua relação com o mundo do crime

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    João Trajano Sento-Sé

    2014-12-01

    Full Text Available A literatura sobre juventude e violência é muitas vezes orientada pela busca de correlações entre, de um lado, os vínculos familiares, a inserção escolar e as perspectivas de futuro e, de outro, o envolvimento dos jovens com a violência, como vítimas ou agressores. O objetivo deste texto é problematizar essas correlações por meio do estudo comparativo de relatos de jovens em três diferentes situações concernentes às formas de institucionalização: a em cumprimento de medidas socioeducativas; b inseridos no sistema escolar público; e c afastados de qualquer tipo de vínculo institucional. A metodologia empregada foi a entrevista em profundidade, com um roteiro que versou sobre as relações familiares, a trajetória escolar, projetos para o futuro e experiências com a violência e o crime. A análise apontou pistas para o questionamento do valor heurístico daquela entronização da escola e dos vínculos familiares como marcos de referência para o estudo das experiências jovens.

  11. A educação física na saúde mental: construindo uma formação na perspectiva interdisciplinar

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    Odilon José Roble

    2012-06-01

    Full Text Available Este estudo objetivou analisar uma experiência de formação do educador físico como profissional de saúde mental, inserido em uma equipe interdisciplinar. A investigação ocorreu no segundo semestre de 2009, em um Núcleo de Apoio Psicossocial, em Santos, estado de São Paulo, Brasil. Foram utilizados, como materiais de análise, os projetos e relatórios produzidos pelos alunos. Os trechos mais significativos destes foram destacados, agrupados segundo tema-chave, e discutidos. Tratou-se de uma coleta de dados qualitativa, que gerou um ensaio reflexivo sobre o tema. Foram identificados três temas-chave: tendência ao sedentarismo entre os usuários; possibilidades de atuação para o educador físico, e aprendizado mútuo e significativo. O educador físico apareceu como um interlocutor no diálogo terapêutico, alguém que veio conversar sobre o corpo ou com o corpo do ser humano acometido pelo sofrimento psíquico. Nossos resultados corroboram a importância deste profissional nesse contexto e descortinam novos horizontes para tal intervenção.

  12. A educação física na saúde mental: construindo uma formação na perspectiva interdisciplinar

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    Odilon José Roble

    Full Text Available Este estudo objetivou analisar uma experiência de formação do educador físico como profissional de saúde mental, inserido em uma equipe interdisciplinar. A investigação ocorreu no segundo semestre de 2009, em um Núcleo de Apoio Psicossocial, em Santos, estado de São Paulo, Brasil. Foram utilizados, como materiais de análise, os projetos e relatórios produzidos pelos alunos. Os trechos mais significativos destes foram destacados, agrupados segundo tema-chave, e discutidos. Tratou-se de uma coleta de dados qualitativa, que gerou um ensaio reflexivo sobre o tema. Foram identificados três temas-chave: tendência ao sedentarismo entre os usuários; possibilidades de atuação para o educador físico, e aprendizado mútuo e significativo. O educador físico apareceu como um interlocutor no diálogo terapêutico, alguém que veio conversar sobre o corpo ou com o corpo do ser humano acometido pelo sofrimento psíquico. Nossos resultados corroboram a importância deste profissional nesse contexto e descortinam novos horizontes para tal intervenção.

  13. Início da vida sexual na adolescência e relações de gênero: um estudo transversal em São Paulo, Brasil, 2002 Sexual debut in adolescence and gender relations: a cross-sectional study in São Paulo, Brazil, 2002

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    Ana Luiza Vilela Borges

    2005-04-01

    Full Text Available Trata-se de estudo transversal com o objetivo de identificar os diferenciais de gênero presentes no início da vida sexual de adolescentes. Foram entrevistados 406 adolescentes de 15 a 19 anos de idade inscritos em uma unidade de saúde da família da zona leste do Município de São Paulo, Brasil, entre maio e dezembro de 2002. Quase a metade dos adolescentes já havia iniciado sua vida sexual, em média aos 15 anos de idade, fossem homens ou mulheres. O início da vida sexual ocorreu, em grande parte, de forma não planejada (72,7% e dentro de casa (86,1%. O uso de um método contraceptivo na primeira relação sexual foi similar entre homens e mulheres (61,0%, entretanto, foi observado um aumento maior na proporção de uso de algum anticonceptivo entre os homens na última relação sexual. Pelo fato de terem iniciado sua vida sexual em relacionamentos estáveis com vínculos afetivo-amorosos, as mulheres mostraram-se mais vulneráveis às DST/AIDS, pois substituíram o preservativo masculino por outros métodos na última relação sexual, enquanto os homens permaneceram utilizando largamente o condom, provavelmente por estarem inseridos em relacionamentos não estáveis.This cross-sectional study aimed to assess gender differences in adolescents in relation to onset of sexual activity. A total of 406 15-19-year-old adolescents from a family health unit in the city of São Paulo, Brazil, were interviewed from May to December 2002. Nearly half had already had their first sexual intercourse, at a mean age of 15, independently of gender. Sexual debut was usually unplanned (72.7% and inside the home (86.1%. An equal proportion (61.0% of males and females used some contraceptive method in their first sexual intercourse; however, more males had used a contraceptive method in their most recent intercourse. Having initiated their sexual activity in stable, affective relationships, females proved to be more vulnerable to STD/ AIDS, since they

  14. Orientação sexual em uma escola: recortes de corpos e de gênero Sexual orientation at a school: images of bodies and gender

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    Helena Altmann

    2003-01-01

    Full Text Available Este artigo trata da orientação sexual em uma escola municipal de ensino fundamental do Rio de Janeiro. As reflexões acerca de como uma escola desenvolve esse trabalho são desencadeadas a partir da emergência de um recorte de gênero. O fato de um maior número de meninas do que de meninos ter se disponibilizado a conceder as entrevistas conduz a uma reflexão sobre quem aborda esses assuntos com os/as adolescentes e sobre como o tema da sexualidade é focado, delimitado e inserido na escola. Pode-se dizer que há dois temas centrais em torno dos quais são organizadas as aulas sobre sexualidade - gravidez e DST's/AIDS -, aos quais estão ligados suas formas de prevenção - camisinha e métodos anticoncepcionais. A seguir, são discutidas questões sobre os diferentes modos de a escola recortar e abordar pedagogicamente os corpos de mulheres e de homens, o que é relacionado ao processo histórico de medicalização do corpo da mulher. Por fim, são discutidas algumas questões sobre alguns paradoxos enfrentados por adolescentes em relação à anticoncepção.This article deals with sexual orientation in a municipal grade school (grades 5th to 8th in Rio de Janeiro, Brazil. The reflections about how a school develops this work are investigated from the perspective of the emergence of an image of gender during the making up of an ethnographic study. The fact that a larger number of girls than boys allowed themselves to be interviewed leads one to question who talks about these subjects with the adolescents and how the topic of sexuality is approached, limited and inserted into the school. It can be said that there are two central topics around which sex education classes are organized: pregnancy and STD/AIDS, to which are linked the forms of prevention - the condom and birth control methods. This is followed by a discussion of issues about how the feminine and masculine bodies are viewed, which is in turn related to the historical process

  15. Avaliação e teste de explicações na educação em ciências Evaluation and testing of explanations in the science education

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    Helder de Figueiredo e Paula

    2007-08-01

    Full Text Available Estudantes do Ensino Fundamental atribuem aos experimentos a função avaliar a qualidade, em termos de adequação às evidências, de uma explicação ou teoria? Afinal, como os estudantes concebem o processo de avaliação de teorias ou explicações? Que função eles atribuem aos experimentos nesse contexto? Neste artigo, tratamos dessas questões com base em dados obtidos por meio de uma entrevista semi-estruturada realizada com estudantes da 7ª série do Ensino Fundamental. Situamos o presente trabalho e o projeto de pesquisa no qual ele esteve inserido no contexto da busca de alternativas para a experimentação e para o avanço da compreensão da função do laboratório no ensino de ciências. Nossos dados nos permitem concluir que a concepção de experimentos para testar explicações e hipóteses é uma tarefa bastante sofisticada, mas que é plenamente possível explorar essa função no laboratório didático.How do students conceive the processes of evaluating and testing the quality of theories and explanations? Which functions do they attribute to experiments in this context? This study approaches these questions based on data obtained from semi-structured interviews with grade 7 students. Analysis of this data enabled us to evaluate how students conceive experimental tests in order to validate or reject explanations and tentative theories from their emerging understandings of this important role of experimentation. We situate the present work and the wider research project we were conducting in the context of devising alternative ways for framing and designing experimental activities leading to a better and more productive understanding of the function of science in the school laboratory.

  16. Effect of β,β-Dimethylacrylshikonin on Inhibition of Human Colorectal Cancer Cell Growth <em>in Vitro em>and <em>in Vivoem>

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    Ting Feng

    2012-07-01

    Full Text Available In traditional Chinese medicine, shikonin and its derivatives, has been used in East Asia for several years for the prevention and treatment of several diseases, including cancer. We previously identified that β,β-dimethylacrylshikonin (DA could inhibit hepatocellular carcinoma growth. In the present study, we investigated the inhibitory effects of DA on human colorectal cancer (CRC cell line HCT-116 <em>in vitroem> and <em>in vivoem>. A viability assay showed that DA could inhibit tumor cell growth in a time- and dose-dependent manner. Flow cytometry showed that DA blocks the cell cycle at G0/G1 phase. Western blotting results demonstrated that the induction of apoptosis by DA correlated with the induction of pro-apoptotic proteins Bax, and Bid, and a decrease in the expression of anti-apoptotic proteins Bcl-2 and Bcl-xl. Furthermore, treatment of HCT-116 bearing nude mice with DA significantly retarded the growth of xenografts. Consistent with the results <em>in vitroem>, the DA-mediated suppression of HCT-116 xenografts correlated with Bax and Bcl-2. Taken together, these results suggest that DA could be a novel and promising approach to the treatment of CRC.

  17. Exercise-induced bone formation is poorly linked to local strain magnitude in the sheep tibia.

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    Ian J Wallace

    Full Text Available Functional interpretations of limb bone structure frequently assume that diaphyses adjust their shape by adding bone primarily across the plane in which they are habitually loaded in order to minimize loading-induced strains. Here, to test this hypothesis, we characterize the in vivo strain environment of the sheep tibial midshaft during treadmill exercise and examine whether this activity promotes bone formation disproportionately in the direction of loading in diaphyseal regions that experience the highest strains. It is shown that during treadmill exercise, sheep tibiae were bent in an anteroposterior direction, generating maximal tensile and compressive strains on the anterior and posterior shaft surfaces, respectively. Exercise led to significantly increased periosteal bone formation; however, rather than being biased toward areas of maximal strains across the anteroposterior axis, exercise-related osteogenesis occurred primarily around the medial half of the shaft circumference, in both high and low strain regions. Overall, the results of this study demonstrate that loading-induced bone growth is not closely linked to local strain magnitude in every instance. Therefore, caution is necessary when bone shaft shape is used to infer functional loading history in the absence of in vivo data on how bones are loaded and how they actually respond to loading.

  18. Enrichment and Purification of Syringin, Eleutheroside E and Isofraxidin from <em>Acanthopanax> <em>senticosus> by Macroporous Resin

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    Yuangang Zu

    2012-07-01

    Full Text Available In order to screen a suitable resin for the preparative simultaneous separation and purification of syringin, eleutheroside E and isofraxidin from <em>Acanthopanax> <em>senticosus>, the adsorption and desorption properties of 17 widely used commercial macroporous resins were evaluated. According to our results, HPD100C, which adsorbs by the molecular tiers model, was the best macroporous resin, offering higher adsorption and desorption capacities and higher adsorption speed for syringin, eleutheroside E and isofraxidin than other resins. Dynamic adsorption and desorption tests were carried out to optimize the process parameters. The optimal conditions were as follows: for adsorption, processing volume: 24 BV, flow rate: 2 BV/h; for desorption, ethanol–water solution: 60:40 (v/v, eluent volume: 4 BV, flow rate: 3 BV/h. Under the above conditions, the contents of syringin, eleutheroside E and isofraxidin increased 174-fold, 20-fold and 5-fold and their recoveries were 80.93%, 93.97% and 93.79%, respectively.

  19. Training for Defense? From Stochastic Traits to Synchrony in Giant Honey Bees (<em>Apis dorsataem>

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    Gerald Kastberger

    2012-08-01

    Full Text Available In Giant Honey Bees, abdomen flipping happens in a variety of contexts. It can be either synchronous or cascaded, such as in the collective defense traits of shimmering and rearing-up, or it can happen as single-agent behavior. Abdomen flipping is also involved in flickering behavior, which occurs regularly under quiescent colony state displaying singular or collective traits, with stochastic, and (semi- synchronized properties. It presumably acts via visual, mechanoceptive, and pheromonal pathways and its goals are still unknown. This study questions whether flickering is preliminary to shimmering which is subject of the <em>fs em>(flickering-shimmering-transition> hypothesis? We tested the respective prediction that trigger sites (<em>ts> at the nest surface (where shimmering waves had been generated show higher flickering activity than the alternative non-trigger sites (<em>nts>. We measured the flickering activity of <em>ts>- and <em>nts>-surface bees from two experimental nests, before and after the colony had been aroused by a dummy wasp. Arousal increased rate and intensity of the flickering activity of both <em>ts>- and <em>nts> cohorts (P < 0.05, whereby the flickering intensity of <em>ts>-bees were higher than that of <em>nts>-bees (P < 0.05. Under arousal, the colonies also increased the number of flickering-active <em>ts>- and <em>nts>-cohorts (P < 0.05. This provides evidence that cohorts which are specialist at launching shimmering waves are found across the quiescent nest zone. It also proves that arousal may reinforce the responsiveness of quiescent curtain bees for participating in shimmering, practically by recruiting additional trigger site bees for expanding repetition of rate and intensity of shimmering waves. This finding confirms the <em>fs-transition> hypothesis and constitutes evidence that flickering is part of a basal colony-intrinsic information system

  20. Computed tomography to evaluate the association of fragmented heterolog cortical bone and methylmethacrylate to repare segmental bone defect produced in tibia of rabbits

    International Nuclear Information System (INIS)

    Freitas, S.H.; Doria, R.G.S.; Mendonca, F.S.; Santos, M.D.; Moreira, R.; Simoes, R.S.; Camargo, L.M.; Simoes, M.J.; Marques, A.T.C.

    2012-01-01

    A 6mm segmental defect was performed on the metaphyseal region of the tibia of 12 rabbits and the autoclaved fragmented heterolog cortical bone conserved in glycerin (98%) and methylmethacrylate was used as a bone graft for the reconstruction. The graft was placed in the receptor bed and its integration was evaluated by computed tomography after 30, 60 and 90 days. There was gradual bone graft incorporation in the receptor bed during the time in 100% of the cases. Fragmented cortical bone heterograft and methylmethacrylate was biologically compatible and promotes bone defect reparation without signs of infection, migration and or rejection, featuring a new option of osseous substitute to fill in bone defects. (author)

  1. Complete BWR--EM LOCA analysis using the WRAP--EM system

    International Nuclear Information System (INIS)

    Beckmeyer, R.R.; Gregory, M.V.; Buckner, M.R.

    1979-01-01

    The Water Reactor Analysis Package, Evaluation Model (WRAP--EM), provides a complete analysis of postulated loss-of-coolant accidents (LOCA's) in light--water nuclear power reactors. The system is being developed at the Savannah River Laboratory (SRL) for use by the Nuclear Regulatory Commission (NRC) to interpret and evaluate reactor vendor, evaluation model (EM) analyses. The initial version of the WRAP--EM system for analysis of boiling water reactors (BWR's) is operational. To demonstrate the complete capability of the WRAP--BWR--EM system, a LOCA analysis has been performed for the Hope Creek Plant

  2. Supercritical Fluid Extraction of <em>Eucalyptus globulusem> Bark—A Promising Approach for Triterpenoid Production<em>>

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    Carlos M. Silva

    2012-06-01

    Full Text Available Eucalyptus bark contains significant amounts of triterpenoids with demonstrated bioactivity, namely triterpenic acids and their acetyl derivatives (ursolic, betulinic, oleanolic, betulonic, 3-acetylursolic, and 3-acetyloleanolic acids. In this work, the supercritical fluid extraction (SFE of <em>Eucalyptus> <em>globulus> deciduous bark was carried out with pure and modified carbon dioxide to recover this fraction, and the results were compared with those obtained by Soxhlet extraction with dichloromethane. The effects of pressure (100–200 bar, co-solvent (ethanol content (0, 5 and 8% wt, and multistep operation were studied in order to evaluate the applicability of SFE for their selective and efficient production. The individual extraction curves of the main families of compounds were measured, and the extracts analyzed by GC-MS. Results pointed out the influence of pressure and the important role played by the co-solvent. Ethanol can be used with advantage, since its effect is more important than increasing pressure by several tens of bar. At 160 bar and 40 °C, the introduction of 8% (wt of ethanol greatly improves the yield of triterpenoids more than threefold.

  3. <em>Helicobacter pyloriem> Disrupts Host Cell Membranes, Initiating a Repair Response and Cell Proliferation

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    Hsueh-Fen Juan

    2012-08-01

    Full Text Available <em>Helicobacter pyloriem> (<em>H. pyloriem>, the human stomach pathogen, lives on the inner surface of the stomach and causes chronic gastritis, peptic ulcer, and gastric cancer. Plasma membrane repair response is a matter of life and death for human cells against physical and biological damage. We here test the hypothesis that <em>H. pyloriem> also causes plasma membrane disruption injury, and that not only a membrane repair response but also a cell proliferation response are thereby activated. Vacuolating cytotoxin A (VacA and cytotoxin-associated gene A (CagA have been considered to be major <em>H. pyloriem> virulence factors. Gastric cancer cells were infected with <em>H. pyloriem> wild type (vacA+/cagA+, single mutant (ΔvacA or ΔcagA or double mutant (ΔvacA/ΔcagA strains and plasma membrane disruption events and consequent activation of membrane repair components monitored. <em>H. pyloriem> disrupts the host cell plasma membrane, allowing localized dye and extracellular Ca2+ influx. Ca2+-triggered members of the annexin family, A1 and A4, translocate, in response to injury, to the plasma membrane, and cell surface expression of an exocytotic maker of repair, LAMP-2, increases. Additional forms of plasma membrane disruption, unrelated to <em>H.> pylori em>exposure, also promote host cell proliferation. We propose that <em>H. pyloriem> activation of a plasma membrane repair is pro-proliferative. This study might therefore provide new insight into potential mechanisms of <em>H. pyloriem>-induced gastric carcinogenesis.

  4. Um programa para o planejamento da recria de fêmeas oriundas de rebanhos leiteiros A computer program for planning dairy heifer raising

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    Moisés de Andrade Resende Filho

    2002-01-01

    Full Text Available Alimentação e manejo inadequados das novilhas em recria constituem alguns dos entraves ao incremento da produtividade do rebanho leiteiro no Brasil. Nessa fase, o pecuarista deve decidir entre recriar os animais de reposição, adquiri-los ou terceirizar sua criação. Além disso, em se decidindo por recriar suas próprias novilhas, seria importante encontrar a melhor alternativa em termos econômicos. Visando auxiliar o pecuarista a resolver tal questão, apresenta-se um modelo matemático que permite estimar os custos decorrentes da recria de fêmeas de rebanhos leiteiros até atingir o peso recomendado à cobertura. Tal modelo foi inserido em um programa de computador de maneira a permitir a construção de diferentes cenários, considerando-se peso, raça e ganho de peso diário do lote de novilhas. Assim, após contrastar os cenários gerados com as opções de compra das novilhas ou terceirização da recria, o pecuarista aumenta as chances de tomar uma decisão mais lucrativa. Exemplos de utilização do modelo inserido em um programa de computador são apresentados e avaliados.Inadequate feeding and management when raising heifers are two factors that constrain dairy cattle productivity in Brazil. In order to build their heads, Brazilian dairy farmers must choose between three options: to raise their own heifers to breeding age, to purchase mature heifers from outside sources, or to employ a custom heifer raiser. If the dairy farmer chooses to raise his own heifers, he needs to determine the most economically rational production strategy. To aid the farmer in this determination, a mathematical model was developed to create a budget for raising a group of heifers to their recommended breeding weight. This model was embedded in a computer program making it possible to build different growth scenarios, which can be adjusted by breed, desired daily weight gain, and average weight for a given group of heifers. After contrasting the results

  5. NATURE AND LAW IN THE <em>INSTITUTAS> OF GAIO NATUREZA E DIREITO NAS <em>INSTITUTAS> DE GAIO

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    Alfredo Carlos Storck

    2011-09-01

    Full Text Available

    In a very famous passage of his <em>Institutes>, the ancient jurist Gaius had divided the Roman Private Law in two parts: the Civil Law and the Law of People. The former is the Law created by the Roman people, whereas the latter is the Law followed by every nation.

    Despite its classical origin, there is some disagreement among specialists about the right way to interpret this distinction. By the beginning of the 20th century, historians like Michel Villey had seen in this distinction the influence of Greek philosophy (Stoic but even Aristotelian among the Roman jurists. But Levy and more recently Kelly have challenged this view and proposed that, in the roman period, philosophers and jurists had completely distinct notions of nature and natural law. The aim of this paper is not to prove the exact influence of Greek philosophy among jurists, but only to suggest that it is not possible to give an interpretation of the classical texts without ascribing to them a theoretical notion of the natural law.

    Em uma famosa passagem de suas <em>Institutas>, o jurista romano Gaio dividiu o direito privado em duas partes: o direito civil e o direito dos povos. O primeiro é o direito criado pelo povo romano enquanto o segundo é o direito seguido por todas as nações. A despeito de sua origem clássica, os especialistas discordam acerca do modo de interpretar essa tese. No início do século XX, historiadores como Michel Villey viram na distinção sinais da influência da filosofia grega (estóica e mesmo aristotélica entre os juristas romanos. Posteriormente Levy e mais recentemente Kelly contestaram essa afirmação e defenderam que filósofos e juristas possuíam, no período clássico, noções de natureza e direito natural completamente distintas. O objetivo desse artigo não está em provar a exata influência da filosofia grega entre os juristas, mas apenas em sugerir que não é possível fornecer uma interpretação dos

  6. Local feeding specialization of the red fox (<em>Vulpes vulpesem> in response to eastern cottontail (<em>Sylvilagus floridanusem> introduction (NW Italy

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    Alessandro Balestrieri

    2006-03-01

    Full Text Available Abstract To appreciate the influence of the introduction of the Eastern cottontail (<em>Sylvilagus floridanusem> on the food habits of the red fox (Vulpes vulpes, between June 1998 and February 2000 fox diet was investigated by means of scat analysis (N=115 in a 250 ha wide Natural Reserve of NW Italy, and compared with data collected in the same area prior to cottontail colonization (1988-1989. Comparison included also the diet of badgers (<em>Meles melesem>, considered as potential competitors for food resources. Alien lagomorphs (mean percent volume, Vm% = 68% represented by far the most exploited resource, only three other food items reaching values of mean percent volume barely higher than 5%. Cottontails frequency of occurrence did not vary according either to season or to their reproductive cycle (II-IX vs. X-I, whilst diet niche breadth varied inversely proportional to the use of this key-resource. Overall fox trophic niche breadth varied from 0.64 in 1988-89 to 0.31 in 1998-00 (B, Levin’s index. These findings led us to consider the feeding habits of the fox in the study area as a result of local specialization of a typical generalist carnivore, according to the predictions of optimal foraging theory. No variation occurred in the badger niche breadth since cottontail introduction, whilst niche overlap between foxes and badgers decreased from 0.59 to 0.13 (O, Pianka’s index, possibly reducing competition for food in summer. Riassunto Specializzazione alimentare a livello locale della Volpe <em>Vulpes vulpesem> in risposta all’introduzione del Silvilago <em>Sylvilagus floridanusem> (Italia nord occidentale. Per valutare gli effetti dell’introduzione del Silvilago (<em>Sylvilagus floridanusem> sul comportamento alimentare della volpe (<em>Vulpes vulpesem>, nel periodo giugno 1998-febbraio 2000, la dieta del carnivoro è stata definita tramite l’analisi di 115

  7. Metabolic Profiling of <em>Lactococcus lactisem> Under Different Culture Conditions

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    Normah Mohd Noor

    2012-07-01

    Full Text Available Gas chromatography mass spectrometry (GC-MS and headspace gas chromatography mass spectrometry (HS/GC-MS were used to study metabolites produced by <em>Lactococcus lactisem> subsp. <em>cremoris> MG1363 grown at a temperature of 30 °C with and without agitation at 150 rpm, and at 37 °C without agitation. It was observed that <em>L. lactisem> produced more organic acids under agitation. Primary alcohols, aldehydes, ketones and polyols were identified as the corresponding trimethylsilyl (TMS derivatives, whereas amino acids and organic acids, including fatty acids, were detected through methyl chloroformate derivatization. HS analysis indicated that branched-chain methyl aldehydes, including 2-methylbutanal, 3-methylbutanal, and 2-methylpropanal are degdradation products of isoleucine, leucine or valine. Multivariate analysis (MVA using partial least squares discriminant analysis (PLS-DA revealed the major differences between treatments were due to changes of amino acids and fermentation products.

  8. Complex mating behavior in Adelosgryllus rubricephalus (Orthoptera, Phalangopsidae, Grylloidea Comportamento Complexo de Acasalamento em Adelosgryllus rubricephalus (Orthoptera, Gryllidae

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    Edison Zefa

    2008-09-01

    Full Text Available We describe the mating behavior of Adelosgryllus rubricephalus Mesa & Zefa, 2004. In trials carried out in laboratory we verified the following mating sequence: (1 sexual recognition by antennation; (2 courtship with male turning his abdomen towards the female, performing mediolateral antennae vibration, jerking its body antero-posteriorly and stridulating intermittently, while receptive female drums on the male's abdomen tip, cerci and hind-tibia with her palpi or foretarsi; the male then stops and stays motionless for some seconds, extrudes the spermatophore and both restart the behavioral sequence described above; (3 copulation: male underneath female; with his tegmina inclined forward, and joins his genitalia to the female's to promote sperm transference ; the female steps off the male, occurring a brief end-to-end position; (4 postcopulation: without guarding behavior; male retains the spermatophore and eats it. We quantified elapsed time of each behavioral sequence and discussed its implications in the observed mating behavior.Descrevemos o comportamento reprodutivo de Adelosgryllus rubricephalus Mesa & Zefa, 2004. Em observações realizadas em laboratório verificamos a seguinte seqüência no comportamento de acasalamento: (1 reconhecimento sexual por antenação; (2 corte, em que o macho volta seu abdômen em direção à fêmea, vibra as antenas médio-lateralmente, treme o corpo ântero-posteriormente e estridula intermitentemente, enquanto a fêmea receptiva toca a ponta do abdômen, os cercos e os fêmures posteriores do macho, com seus palpos ou tarsos anteriores; o macho então fica imóvel por alguns segundos, expõe o espermatóforo e ambos retomam a seqüência comportamental descrita acima; (3 cópula: o macho coloca-se sob a fêmea, com suas tégminas inclinadas para frente, anexa sua genitália à dela e promove a transferência do esperma; a fêmea desce de cima do macho e ocorre brevemente a posição "end-to-end" durante

  9. Matérias estranhas em canela em pó e páprica em pó, comercializadas no estado de São Paulo

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    CORREIA Marlene

    2000-01-01

    Full Text Available Com objetivos de padronizar metodologias para matérias estranhas em canela em pó e páprica em pó e de avaliar as condições higiênicas desses condimentos, foram adquiridas, no período de agosto a novembro de 1998, 78 amostras de canela em pó e 56 de páprica em pó, em estabelecimentos comerciais de seis cidades do Estado de São Paulo. Foram utilizados métodos da Association of Official Analytical Chemists International (AOAC - 1995, 16.14.12/968.38b para canela em pó e 16.14.22/977.25B para páprica em pó. Os métodos mostraram-se adequados, sem resíduos interferentes no papel de filtro que dificultasse o diagnóstico da análise e viáveis de serem utilizados nos laboratórios de Microscopia de Alimentos. Os resultados obtidos indicaram 100% das amostras contendo fragmentos de insetos; pêlos de roedor foram isolados em 73,1% de amostras de canela em pó e 34,0% de páprica em pó, enquanto ácaros mortos apareceram, respectivamente, em 37,2% e 12,5% de amostras. É necessário revisão da legislação de alimentos em vigor, com o estabelecimento de níveis de tolerância para fragmentos de insetos.

  10. Homenagem a Luiz Roberto Graça

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    Patrícia Póvoa de Mattos

    2010-12-01

    Full Text Available Desde o início de suas atividades, a Embrapa Florestas se preocupou em divulgar seus principais resultados de pesquisa por meio do Boletim de Pesquisa Florestal (BPF, lançado em 1980. Com o passar do tempo, percebeu-se a necessidade de modernizar o Boletim, ajustando seu formato aos novos tempos. O Engenherio Agrônomo, Pesquisador e Doutor em Economia, Luiz Roberto Graça foi chamado para liderar este processo de reformulação do BPF. Meticuloso, persistente e paciente, Dr. Graça deu novo formato ao antigo Boletim, transformando-o no periódico Pesquisa Florestal Brasileira (PFB. Novos processos foram inseridos na revista, a revisão dos artigos submetidos ganhou mais agilidade, a ampliação do número de revisores ad hoc impôs maior rigor na seleção dos trabalhos e diminui-se a endogamia antes existente no Boletim.
    Em 2008, o Dr. Graça aposentou-se da Embrapa, indo para um merecido descanso após tantos anos de dedicação à Empresa. Infelizmente, nos deixou precocemente em outubro de 2010. Sua ausência será muito sentida, tanto nos resultados de pesquisa quanto em sua calma para organizar o trabalho. Por isso, a PFB, em reconhecimento aos esforços e contribuições do Dr. Graça, aqui o homenageia, com a certeza que sua marca estará sempre estampada na pesquisa florestal no Brasil.

  11. The three left peripheries: bases for a cartographic study of Brazilian Portuguese ‘lá’

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    Bruna Karla Pereira

    2010-12-01

    Full Text Available Neste artigo, abordamos a hipótese segundo a qual ‘lá’, no português brasileiro, é inserido por ‘merge’ em spec de diferentes projeções funcionais localizadas acima do IP, v/VP e NP. Nesta perspectiva, analisamos três sentenças nas quais ‘lá’ não apresenta valor dêitico locativo; ao contrário, pertence a estruturas com questão retórica, negação e quantificação. Sendo assim, sugerimos que ‘lá’ pode ser analisado como especificador de FocusP nas periferias do IP e do v/VP e como especificador de QP na projeção nominal.

  12. VIABILIDADE ECONÔMICA PARA PRODUÇÃO DE MEL EM PROPRIEDADE FAMILIAR ECONOMIC VIABILITY FOR HONEY PRODUCTION ON HOME FARM

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    Daniel Nicodemo

    2011-01-01

    Full Text Available Em 2009, o Brasil quebrou o seu recorde de exportação de mel, gerando receita superior a US$ 65 milhões. Entretanto, existe uma lacuna nos aspectos econômicos, para grande parte dos apicultores inseridos nesta cadeia. Desta forma, levantou-se o investimento necessário para a produção de mel, em uma propriedade familiar de Cajuru (SP, com estimativas de investimento e custos de produção baseados no Custo Operacional Total (COT utilizado pelo Instituto de Economia Agrícola, obtendo-se R$ 97.093,00 como valor total do investimento. Para a análise econômica, avaliando-se a produção de mel originária de flor de laranjeira e silvestre, o custo operacional total foi de R$ 16.400,13, considerando-se que as despesas com insumos perfizeram 70% do Custo Operacional Efetivo (COE e 26% do COT, obtendo-se índice de lucratividade de 46%. Em relação ao ponto de nivelamento, o apicultor precisa produzir 4.659 kg de mel, ou vender ao preço mínimo de R$ 1,93/kg a produção obtida, para cobrir os custos. Constatou-se, com base no fluxo de caixa, TIR de 7,24% e que o investimento inicial retorna em 10 anos, mostrando resultados atrativos para este segmento agropecuário, considerando-se a racionalidade de uso dos fatores de produção, bem como um aumento progressivo na quantidade produzida.

    PALAVRAS-CHAVE: Apicultura; custos de produção; rentabilidade.In 2009, Brazil broke its own record for honey exports, generating revenues exceeding US$ 65 million. However, there is a gap, concerning economic aspects, for most apiculturists inserted in that chain. Thus, the investment needed for honey production on a home farm in Cajuru, São Paulo State, Brazil, was estimated with investment and production costs based on the Total Operating Cost (TOC used by the Instituto de Economia Agrícola, reaching R$ 97,093.00 as the total investment amount. For the economic analysis, considering the orange blossom and wild honey production, the operating

  13. Identification of <em>Colletotrichum> species causing anthracnose on Tahiti lime, tree tomato and mango

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    Martínez Erika P.

    2009-08-01

    Full Text Available

    In Colombia, citrus, tree tomato and mango crops are likely to suffer considerable losses from anthracnose caused by several <em>Colletotrichum> species, which were identified by the present study on infected organs of the three fruit crops, sampled in different regions of the country. Identification was based on their morphological and molecular characteristics, as well as on fungicide (benomyl and copper hydroxide sensitivity and pathogenicity tests. The latter assessed infectivity on both the original hosting crop and the other two crops (crossed infection, by putting the fungi in contact with organs taken from the three fruit crops. Molecular identification of the <em>Colletotrichum> species was carried out through amplification of rDNA ITS regions by means of <em>C. gloeosporioidesem> (CgInt and <em>C. acutatumem> (CaInt2 specific primer PCR combining the use of ITS4 universal primer. The results indicate that <em>C. acutatumem> is the infectious agent in Tahiti lime and tree tomato, and so is <em>C. gloeosporioidesem> in mango. Although <em>C. acutatumem> is the infectious agent in two diferent fruit species, the strains proved to be specific of their original hosts.

  14. Primeiro registro de Chara indica e Chara zeylanica (Charophyceae, Charales, Characeae em reservatórios do semiárido do estado do Rio Grande do Norte, Brasil

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    Gustavo Henrique Gonzaga da Silva

    2013-04-01

    Full Text Available http://dx.doi.org/10.5007/2175-7925.2013v26n3p243 No presente trabalho, apresentamos os primeiros registros das macroalgas Chara indica e Chara zeylanica para o estado do Rio Grande do Norte, Brasil, e para o semiárido nordestino. Exemplares de C. indica e C. zeylanica foram coletados nos reservatórios de Santa Cruz e Umari, respectivamente. Ambos os reservatórios estão localizados na bacia hidrográfica do Rio Apodi-Mossoró (oeste do estado, estando inseridos no bioma Caatinga.

  15. Isolamento de micobactérias em Felis concolor em cativeiro

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    María Julia Traversa

    2009-02-01

    Full Text Available Este trabalho foi realizado em uma reserva natural da Argentina com antecedentes de tuberculose em uma suçuarana adulta. O objetivo foi identificar por meio de técnicas bacteriológicas e de biologia molecular as espécies isoladas da orofaringe de cinco suçuaranas que apresentavam sinais clínicos inespecíficos. As amostras foram colhidas das suçuaranas após sedação. Posteriormente foram processadas para obtenção do isolamento e identificação por meio de provas bioquímicas do gênero Mycobacterium pela técnica de PCR. Investigou-se a presença das seqüências de inserção IS6110 e IS1081 e hsp65. Obtiveram-se resultados positivos à coloração de Ziehl-Neelsen de quatro amostras, isolando cinco cepas de crescimento lento. As cepas foram classificadas como M. gordonae em dois casos e M. simiae, M scrofulaceum e M. avium/intracellulare em um. Por PRA, identificou-se o padrão de M. gordonae em três cepas e M. avium III ou M. simiae em dois.

  16. Marketing em moda

    OpenAIRE

    Leães, Sabrina Durgante

    2008-01-01

    Dissertação de mestrado em Design e Marketing O actual estado do Marketing em Moda é uma das questões ainda complexa com que se debate a sociedade global. As questões do Marketing em Moda percorrem alguns aspectos fundamentais tais como as constantes mutações do meio envolvente, a forma de como é percebida e comunicada a identidade das marcas de moda, em busca da melhor forma de segmentar o mercado e definir o seu posicionamento, bem como a reacção ao produto de moda do consumidor final. ...

  17. Synthesis and Antibacterial Evaluation of New <em>N>-acylhydrazone Derivatives from Dehydroabietic Acid

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    Wen Gu

    2012-04-01

    Full Text Available A series of new <em>N>-acylhydrazone derivatives were synthesized in good yields through the reactions of dehydroabietic acid hydrazide with a variety of substituted arylaldehydes. The structures of the synthesized compounds were confirmed by IR, 1H- and 13C-NMR, ESI-MS, elemental analysis and single crystal X-ray diffraction. From the crystal structure of compound 4l, the C=N double bonds of these <em>N>-acylhydrazones showed (<em>E>-configuration, while the NMR data of compounds 4aq indicated the existence of two rotamers for each compound in solution. The target compounds were evaluated for their antibacterial activities against four microbial strains. The result suggested that several compounds exhibited pronounced antibacterial activities. Particularly, compound 4p exhibited good antibacterial activity against <em>Staphylococcus aureusem> and <em>Bacillus subtilisem> comparable to positive control. The possible antibacterial metabolism and the strategy for further optimization of this compound were also discussed.

  18. Outcome after Reconstruction of the Proximal Tibia--Complications and Competing Risk Analysis.

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    Stephan E Puchner

    Full Text Available The proximal tibia (pT is a common site for bone tumors. Improvements in imaging, chemotherapy and surgical technique made limb salvage surgery the treatment of choice. Yet, reconstructions of the pT have been associated with less favorable outcome compared to other parts of the extremities. The aim of this study was to evaluate the outcome of patients with a modular endoprosthetic reconstruction of the pT.Eighty-one consecutive patients with an average age of 29 years underwent endoprosthetic reconstruction of the pT. Postoperative complications were categorized according to the ISOLS classification, and revision-free survival until first complication (any Type 1-5, soft tissue failure (Type 1, aseptic loosening (Type 2, structural failure (Type 3, infection (Type 4, and local tumor progression (Type 5 was estimated by using a Fine-Gray model for competing risk analyses for univariate and multivariable regression with Firth's bias correction.A total of 45 patients (56% had at least one complication. Cumulative incidence for complication Types 1 to 5 at 5 years with death and amputation as competing events revealed a risk of 41% for the first complication, 14% for Type 1, 16% for Type 2, 11% for Type 3, 17% for Type 4, and 1% for Type 5.Despite inclusion of amputation and death as strong competing events, pT replacements are still associated with a high risk of postoperative failures. The results suggest that infection and soft tissue failures (Type 1 and 5 seem to depend from each other. Sufficient soft tissue reconstruction and closure allow better function and reduce the risk of infection as the most prominent complication. The use of a rotating hinge design has significantly reduced structural failures over time.

  19. Infracommunities of intestinal helminths of the Red Fox <em>Vulpes vulpesem> (Linnaeus, 1758 from Italian Alps

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    Anna Rita Di Cerbo

    2003-10-01

    Full Text Available <em>Vulpes vulpesem> (Linnaeus, 1758 is one of the most common carnivore in Italy and its spread includes almost the whole national territory. The species shows an high ecological plasticity and a variable diet composition connected in part to human sources. This high adaptability permits the red foxes to colonize different habitats like the suburbs of large cities as well as the small villages located in mountain areas. On the other hand, the tourism pressure seems to assume a great importance in the Alps, also in those areas where the foxes live. So, indirect interactions could take place between these animals and the humans. The role of <em>V. vulpesem> in the zoonoses has not to be understated since this carnivore could transmit parasitic diseases that are able to cause serious pathologies in humans. This study aims just to investigate on intestinal communities of helmiths of <em>V. vulpesem> in order to make progress in current knowledge on epidemiological situation in Italian Alps. During 1998-2003, we have examined 450 foxes from Trentino Alto Adige, Veneto, Lombardia and Valle d'Aosta. The specimens collected were found dead or have been hunted (according to national law n. 157/92 in localities situated between 170 and 2200 m a.s.l. The carcasses were carried to the provincial sections of Zooprofilattici Institutes, where the intestine was drawn by each sample and all the material was sent to the Faculty of Veterinary Medicine of Milan. Parasitological examination of the small intestines was performed by the analysis of the whole sediment and counting technique (SCT. Parasites were preserved in alcohol 70° before to be clarified or stained and identified by microscope (Zeiss Axioscop. Mean abundance, mean intensity and prevalence were calculated for each taxon of helminth. Dates of sampling were grouped within the four seasons. Statistic tests were performed with software package SPSS rel. 11.5 and spatial analysis with the

  20. Enzymatic Properties and Mutational Studies of Chalcone Synthase from <em>Physcomitrella patensem>

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    Mahiran Basri

    2012-08-01

    Full Text Available <em>Pp>CHS is a member of the type III polyketide synthase family and catalyses the synthesis of the flavonoid precursor naringenin chalcone from <em>p>-coumaroyl-CoA. Recent research reports the production of pyrone derivatives using either hexanoyl-CoA or butyryl-CoA as starter molecule. The Cys-His-Asn catalytic triad found in other plant chalcone synthase predicted polypeptides is conserved in <em>Pp>CHS. Site directed mutagenesis involving these amino acids residing in the active-site cavity revealed that the cavity volume of the active-site plays a significant role in the selection of starter molecules as well as product formation. Substitutions of Cys 170 with Arg and Ser amino acids decreased the ability of the <em>Pp>CHS to utilize hexanoyl-CoA as a starter molecule, which directly effected the production of pyrone derivatives (products. These substitutions are believed to have a restricted number of elongations of the growing polypeptide chain due to the smaller cavity volume of the mutant’s active site.