Montivilliers – Abbaye

L’église abbatiale Notre-Dame de Montivilliers abrite deux dispositifs de pots acoustiques installés successivement dans la croisée du transept. Le premier est constitué de céramiques insérées a posteriori dans le voutement gothique. Il a été masqué, un étage plus bas, par une voûte moderne qui conserve le second dispositif. Notre objectif était d’étudier ces aménagements remarquablement bien préservés, de réaliser des mesures acoustiques in situ et de recueillir des indices chronologiques pa..

Influência do selamento dentinário imediato no sucesso de restaurações indiretas: revisão de literatura

TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.Introdução: A técnica adesiva em restaurações indiretas pode ser otimizada pelo selamento dentinário imediato (SDI). O protocolo consiste na aplicação de um agente de união à dentina imediatamente após o preparo dentinário, selando-a antes da moldagem e confecção do provisório. Objetivo: Revisar a literatura sobre o selamento dentinário imediato e identificar a sua influência no sucesso clínico de restaurações indiretas. Metodologia: A pesquisa bibliográfica se deu por meio de estratégias de busca nas bases de dados online Embase, Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), LIVIVO, PubMed, Scopus e Web of Science. Uma busca na literatura cinzenta também foi realizada no Google Scholar, Open Grey e ProQuest. Artigos publicados nos idiomas inglês, espanhol e português foram incluídos. Não houve delimitação quanto ao ano da publicação. Foram excluídos da lista de referências teses, dissertações, capítulos de livros, resumos e opiniões pessoais. Resultados: O gerenciador de referências EndNote Web foi utilizado na coleta das referências e exclusão das duplicatas. A partir das estratégias de busca, 747 artigos foram encontrados. Destes, 480 artigos duplicados foram removidos. Os títulos e resumos de 267 artigos foram lidos e categorizados conforme os critérios elaborados previamente à busca bibliográfica. Os 30 artigos selecionados nessas etapas foram lidos na íntegra e abordavam temas correlacionados ao selamento dentinário imediato. Conclusão: O selamento dentinário imediato mostrou-se uma técnica importante para o sucesso de restaurações indiretas. Apesar das variações dos protocolos, o “padrão ouro” consiste no uso do sistema adesivo convencional de 3 passos. A resistência de união à dentina é favorecida, a sensibilidade dentinária é reduzida e a estrutura dental preservada. As desvantagens estão relacionadas a fatores inerentes ao selamento, como maior tempo dispendido na execução da técnica, dificuldade com a remoção da restauração provisória e a interação com os materiais de moldagem.Background: The adhesive technique in indirect bonded restorations can be optimized by immediate dentin sealing (IDS). The protocol consists in application of a bonding agent system to dentin immediately after its preparation, sealing it before molding and delivering the provisional. Purpose: To review the literature on immediate dentin sealing and to identify its influence on the clinical success of indirect bonded restorations. Methods: The literature review was carried out through search strategies in the online databases Embase, Latin American and Caribbean Literature in Health Sciences (LILACS), LIVIVO, PubMed, Scopus and Web of Science. A search of gray literature was also carried out on Google Scholar, Open Gray and ProQuest. Articles published in English, Spanish and Portuguese were included. There was no delimitation to the year of publication. Theses, dissertations, book chapters, abstracts and personal opinions were excluded from the reference list. Results: The reference manager EndNote Web was used to collect references and exclude duplicates. From the search strategies, 747 articles were found. Of these, 480 duplicate articles have been removed. The titles and abstracts of 267 articles were read and categorized according to the criteria developed prior to the bibliographic search. The 30 articles selected in these stages were read in full and addressed topics related to immediate dentin sealing. Conclusion: Immediate dentin sealing proved to be an important technique for the success of indirect restorations. Despite variations in the protocols, the “gold standard” consists of using the conventional 3-step adhesive system. Bond strength to dentin is optimized, dentin sensitivity is reduced and the tooth structure is preserved. The disadvantages are related to issues inherent to the sealing, such as more time spent in the execution of the technique, difficulty with the removal of the provisional restoration and the interaction with the impression materials

Apprentissage multi-tâche de l'élévation et de la sémantique à partir d'images aériennes

International audienceAerial or satellite imagery is a great source for land surface analysis, which might yield land use maps or elevation models. In this investigation, we present a neural network framework for learning semantics and local height together. We show how this joint multi-task learning benefits to each task on the large dataset of the 2018 Data Fusion Contest. Moreover, our framework also yields an uncertainty map which allows assessing the prediction of the model. Code is available at https://github.com/marcelampc/mtl_aerial_images

Technical Report: Co-learning of geometry and semantics for online 3D mapping

This paper is a technical report about our submission for the ECCV 2018 3DRMS Workshop Challenge on Semantic 3D Reconstruction \cite{Tylecek2018rms}. In this paper, we address 3D semantic reconstruction for autonomous navigation using co-learning of depth map and semantic segmentation. The core of our pipeline is a deep multi-task neural network which tightly refines depth and also produces accurate semantic segmentation maps. Its inputs are an image and a raw depth map produced from a pair of images by standard stereo vision. The resulting semantic 3D point clouds are then merged in order to create a consistent 3D mesh, in turn used to produce dense semantic 3D reconstruction maps. The performances of each step of the proposed method are evaluated on the dataset and multiple tasks of the 3DRMS Challenge, and repeatedly surpass state-of-the-art approaches

ENTREVISTA: MEDICINA DO TRABALHO ALGUMAS REFLEXÕES

Nesta entrevista o Dr. Carlos Campos, especialista em Ortopedia e Traumatologia, Medicina do Trabalho, Medicina Legal e Perícias Médicas; também Diretor Técnico do IERGO – Instituto de Ergonomia Ltda, discorre sobre sua trajetória profissional no campo da Medicina do Trabalho; fala da importância da transdisciplinaridade durante sua carreira e promove junto a ela a atenção integral à saúde dos trabalhadores. Destaca também a respeito dos principais Riscos Psicossociais que afetam o trabalhador, levando em conta o contexto da pandemia da Covid-19 e esclarece quais são os principais desafios trazidos pela pandemia para os profissionais que atuam na área da Medicina do Trabalho

Effect of preparation design on fracture strength of compromised molars restored with lithium disilicate inlay and overlay restorations: An in vitro and in silico study

PURPOSE: The objective of this study was to determine the influence of different preparation designs on the fracture strength, failure type, repairability, formation of polymerization-induced cracks, and tooth deformation of structurally compromised molars restored with lithium disilicate inlays and overlays in combination with Immediate Dentin Sealing (IDS). MATERIAL AND METHODS: Human molars (N = 64) were randomly assigned to four different preparation designs: Undermined Inlay (UI), Extended Inlay (EI), Restricted Overlay (RO), and Extended Overlay (EO). The teeth were restored using lithium disilicate partial restorations and subjected to thermomechanical fatigue in a chewing simulator (1,2 × 10 (Mondelli et al., 2007) cycles on 50 N, 8000x 5-55 °C), followed by load to failure testing. In silico finite element analysis was conducted to assess tooth deformation. Polymerization-induced cracks were evaluated using optical microscopy and transillumination. Fracture strengths were statistically analyzed using a Kruskal-Wallis test, while the failure mode, repairability, and polymerization cracks were analyzed using Fisher exact test. RESULTS: The propagation of polymerization-induced cracks did not significantly differ among preparation designs. All specimens withstood chewing simulator fatigue, with no visible cracks in teeth or restorations. Fracture strength was significantly influenced by preparation design, with restricted overlay (RO) showing higher fracture strength compared to extended inlay (EI) (p = .042). Tooth deformation and fracture resistance correlated between in vitro and in silico analyses). UI exhibited a statistically less destructive failure pattern than EO (p < .01) and RO (p = .036). No statistically significant influence of the preparation design on repairability was observed. Groups with higher repairability rates experienced increased tooth deformation, leading to less catastrophic failures. CONCLUSIONS: The preparation design affected the fracture strength of compromised molars restored with lithium disilicate inlays and overlays, with significantly lower fracture strength for an extended inlay. The failure pattern of lithium disilicate overlays is significantly more destructive than that of undermined and extended inlays. The finite element analysis showed more tooth deformation in the inlay restorations, with lower forces in the roots, leading to less destructive fractures. Since cusp coverage restorations fracture in a more destructive manner, this study suggests the undermined inlay preparation design as a viable option for restoring weakened cusps

O papel do procedimento de Hartmann no manejo eletivo do câncer retal : resultados de um estudo de coorte brasileiro

Background: although preservation of bowel continuity is a major goal in rectal cancer surgery, a colorectal anastomosis may be considered an unacceptably high-risk procedure, particularly for patients with multiple comorbidities. We aimed to assess rates of surgical complications in rectal cancer patients according to the type of procedure they had undergone. Materials and Methods: this cohort included all rectal cancer patients undergoing elective resection at a referral academic hospital over 16 years. There were three study groups according to the type of performed operation: (1) rectal resection with anastomosis without defunctioning stoma (DS); (2) rectal resection with anastomosis and DS; and (3) Hartmann’s procedure (HP). Postoperative complications and clinical outcomes were assessed. Results: four-hundred and two patients were studied. The 118 patients in group 3 were significantly older (>10 years), had higher Charlson Comorbidity Index scores, and more ASA class ≥3 than patients in the other two groups. Sixty-seven patients (16.7%) had Clavien-Dindo complications grade ≥ III, corresponding to an incidence of 11.8%, 20.9%, and 14.4% in groups 1, 2, and 3, respectively (p=0.10). Twenty-nine patients (7.2%) had major septic complications that required reoperation, with an incidence of 10.8%, 8.2% and 2.5% in groups 1, 2 and 3, respectively (p=0.048). Twenty-one percent of the group 2 patients did not undergo the stoma closure after a 24-month follow-up. Conclusion: HP was associated with a lower incidence of reoperation due to intra-abdominal septic complications. This procedure remains an option for patients in whom serious surgical complications are anticipated.Introdução: embora a preservação da continuidade intestinal seja um dos objetivos principais na cirurgia do câncer retal, a anastomose colorretal pode ser considerada um procedimento de altíssimo risco, particularmente para pacientes com múltiplas comorbidades. Nosso objetivo foi avaliar as taxas de complicações cirúrgicas em pacientes com câncer retal de acordo com o tipo de procedimento a que foram submetidos. Materiais e Métodos: esta coorte incluiu todos os pacientes com câncer retal submetidos a ressecção eletiva em hospital universitário de referência ao longo de 16 anos. Houve três grupos de estudo de acordo com o tipo de operação realizada: (1) ressecção retal com anastomose, sem estoma desfuncionalizante (ED); (2) ressecção retal com anastomose e ED; e (3) procedimento de Hartmann (PH). Avaliamos as complicações pós-operatórias e os resultados clínicos. Resultados: estudamos 402 pacientes. O grupo 3 tinha 118 pacientes, estes sendo significativamente mais idosos (>10 anos), com pontuações mais altas no Índice de Comorbidade de Charlson e mais frequentemente classificados como ASA ≥ 3 do que os pacientes dos outros dois grupos. Sessenta e sete pacientes (16,7%) apresentaram complicações de Clavien-Dindo grau ≥ III, correspondendo à incidência de 11,8%, 20,9% e 14,4% nos grupos 1, 2 e 3, respectivamente (p = 0,10). Vinte e nove pacientes (7,2%) apresentaram complicações sépticas graves, necessitando reoperação, com incidência de 10,8%, 8,2% e 2,5% nos grupos 1, 2 e 3, respectivamente (p = 0,048). Vinte e um por cento dos pacientes do grupo 2 não foram submetidos ao fechamento do estoma após acompanhamento de 24 meses. Conclusão: o PH foi associado à menor incidência de reoperação por complicações sépticas intra-abdominais. Este procedimento continua sendo uma opção para pacientes com alto potencial de desenvolver complicações cirúrgicas graves