224 research outputs found
Passing Through a Hole: Delayed Diaphragmatic Hernia After Cytoreductive Surgery
A diaphragmatic hernia is a protrusion of abdominal contents into the thoracic cavity. Although it is
commonly congenital, diaphragmatic hernias can also be acquired. Blunt or penetrating trauma are among
the most frequent causes, although spontaneous or iatrogenic cases have been reported. Recently, some
case reports related to diaphragmatic hernia after debulking surgery for advanced ovarian cancer have been
described. This is an exceedingly rare but life-threatening complication, being prompt recognition and
surgical correction critical.
We report a case of a delayed diaphragmatic hernia in a 19-year-old female resulting from cytoreductive
surgery for advanced ovarian cancer. Rapid evolution from gastrointestinal symptoms to hypovolemic shock
occurred, and intensive care admission was required. Immediate surgery was critical to improving the
patient outcome.
This case highlights this uncommon but life-threatening complication, the challenges of diagnosing and
managing those patients, and the need for early recognition, support, and surgical correction.info:eu-repo/semantics/publishedVersio
Pneumocephalus Following an Accidental Dural Puncture, Treated Using Hyperbaric Oxygen Therapy. A Case Report
Introduction: Neuraxial techniques, including epidural anaesthesia, are often used for perioperative pain control and are generally safe. However, both transient, mild and even severe, life-threatening neurologic complications can occur. Case presentation: A seventy-eight-year-old man was admitted to the hospital for a radical nephrectomy plus transurethral resection due to kidney and bladder cancer. During the epidural exploration, an accidental dural puncture was noted. This was followed by the patient complaining of an intense headache. The epidural catheter was placed in a different location, and surgery was performed uneventfully. The patient presented with confusion, agita-tion, vertical nystagmus, vision loss, and paraparesis about two hours later. The epidural levobupivacaine and mor-phine infusion were stopped, followed by motor block resolution. A computerized head-tomography scan showed extra-axial multiple air spots involving the frontal and temporal lobes. Emergent hyperbaric oxygen therapy was commenced. After a single session, there was complete resolution of all symptoms and a marked reduction in the number and volume of the extra-axial air visible on the CT scan. Conclusions: Although rare, pneumocephalus is a well-recognized complication of a dural puncture. Its rapid recognition in a patient with new-onset neurological symptoms and early treatment with hyperbaric oxygen therapy allows rapid clinical and imaging resolution and an improved prognosis.info:eu-repo/semantics/publishedVersio
Hospital-acquired pneumonia is more frequent and lethal in stroke patients: A nationwide 4-year study
info:eu-repo/semantics/publishedVersio
Synthesis and characterization of gordaite, osakaite and simonkolleite by different methods: comparison, phase interconversion, and potential corrosion protection applications
Gordaite (NaZn4(OH)6SO4Cl·6H2O) is a mineral from the layered hydroxide salts (LHS) family that presents both cation- and anion-exchange properties, which is rare in this class of materials, having then called much attention lately due to its interesting potential applications. Sharing similar layered structure and composition, gordaite’s non-cation-exchanger analogous such as osakaite (Zn4(OH)6SO4·5H2O) and simonkolleite (Zn5(OH)8Cl2·H2O) show the possibility of interconversion reactions, in dynamics that might be of interest in technological applications such as corrosion protection. The materials can act as stimuli-responsive nanocontainers for storing corrosion inhibitors between the layers that might then be released on demand and avoid corrosion reactions on metals and alloys. In this work, we study the different methodologies for obtaining these LHS by synthesizing them by the oxide hydrolysis, co-precipitation by increasing pH and electrochemical methods, and comparing the obtained results.publishe
On Demand Release of Cerium from an Alginate/Cerium Complex for Corrosion Protection of AISI1020 and AA2024 Substrates
Alginate (ALG) is a natural polymer used in a wide range of applications. Cerium is a sustainable corrosion inhibitor for many metal substrates. In this study, ALG/Ce3+ hydrogel microparticles are presented as an innovative cerium(III) reservoir system for the smart release of cerium ions. The active corrosion inhibition capacity of the ALG/Ce3+ complex was investigated. Tests using ALG/Ce3+ macrogels (beads) and electrochemical experiments showed that, in saline media, ALG/Ce3+ hydrogel was able to release Ce3+, which was subsequently exchanged with Al3+, Fe2+ and Fe3+ and, thus slowing the corrosion process of AA2024 (aluminum alloy) and AISI1020 (carbon steel) substrates, respectively. It is suggested that the presence of metal ions originated from the corrosion process triggers the cerium release. The corrosion protection of ALG/Ce3+ of the aluminum alloy was confirmed by polarization curves, electrochemical impedance spectroscopy (EIS) and scanning vibrating electrode technique (SVET) and the protection of the carbon steel was demonstrated by EIS experiments. To the best of our knowledge, this is the first time that an alginate-based complex has been reported as an ion exchange corrosion-inhibiting system for metal substrates.publishe
A GESTÃO DOS RECURSOS ORÇAMENTÁRIOS E FINANCEIROS DA UNIVERSIDADE FEDERAL DE SANTA CATARINA
O presente estudo visa elaborar uma análise da gestão dos recursos orçamentários e financeiros da Universidade Federal de Santa Catarina (UFSC), mediante uma apreciação dos pressupostos desta administração e da avaliação da situação atual. Destaca-se a relevância da descentralização de créditos orçamentários recebidos, no período entre 2004 e 2012, tornou-se substancial na execução administrativa e na consecução das atividades da Universidade, como reflexo de uma política do Governo Federal para descentralizar a gestão e consequentemente a realização de projetos e programas
Ergonomics and human factors as a requirement to implement safer collaborative robotic workstations: a literature review
There is a worldwide interest in implementing collaborative robots (Cobots) to reduce work-related Musculoskeletal Disorders (WMSD) risk. While prior work in this field has recognized the importance of considering Ergonomics & Human Factors (E&HF) in the design phase, most works tend to highlight workstations’ improvements due to Human-Robot Collaboration (HRC). Based on a literature review, the current study summarises studies where E&HF was considered a requirement rather than an output. In this article, the authors are interested in understanding the existing studies focused on Cobots’ implementation with ergonomic requirements, and the methods applied to design safer collaborative workstations. This review was performed in four prominent publications databases: Scopus, Web of Science, Pubmed, and Google Scholar, searching for the keywords ‘Collaborative robots’ or ‘Cobots’ or ‘HRC’ and ‘Ergonomics’ or ‘Human factors’. Based on the inclusion criterion, 20 articles were reviewed, and the main conclusions of each are provided. Additionally, the focus was given to the segmentation between studies considering E&HF during the design phase of HRC systems and studies applying E&HF in real-time on HRC systems. The results demonstrate the novelty of this topic, especially of the real-time applications of ergonomics as a requirement. Globally, the results of the reviewed studies showed the potential of E&HF requirements integrated into HRC systems as a relevant input for reducing WMSD risk.This work has been supported by FCT–Fundação para a Ciência e Tecnologia and MIT
Portugal Program under the doctoral Grant SFRH/BD/151365/2021. This work has been also
supported by NORTE-06-3559-FSE-000018, integrated in the invitation NORTE-59-2018-41, aiming the
Hiring of Highly Qualified Human Resources, co-financed by the Regional Operational Programme
of the North 2020, thematic area of Competitiveness and Employment, through the European
Social Fund. Additionally, has been also supported by FCT within the Project “I-CATER–Intelligent
robotic Coworker Assistant for industrial Tasks with an Ergonomics Rationale”, Ref. PTDC/EEIROB/3488/2021, and within R&D Units Project Scope: UIDB/00319/2020
Evaluation of tissue in repair with natural latex and / or hyaluronic acid in surgical bone defects
This study evaluated the bone repair in surgical defects of rats treated with hyaluronic acid (HA) associated or not with Hevea brasiliensis fraction protein (F-1). Bone defect were created in 15 albino Wistar rats divided into 3 groups (n=5): Control group (1) - blood clot; HA group (2) - 0.5% hyaluronic acid; HAF1 group (3) - 0.1% F-1 protein fraction dissolved in 0.5% hyaluronic acid. After 4 weeks, the animals were euthanized and the bone repair was evaluated through histomorphometric analysis, zymography and immunohistochemistry. The neoformed bone area did not show a significant difference (p = 0.757), but there was a tendency for bone trabeculation to increase in the groups HA and HAF1. For immunohistochemically analysis, there was a difference in vascular endothelial growth factor (VEGF) labeling (p = 0.023), being higher in the groups HA and HAF1 than the control group. No significant difference in bone sialoprotein (BSP) (p = 0.681), osteocalcin (p = 0.954), however, significant difference in platelet endothelial cell adhesion molecule-1 (CD-31) (p = 0.040), with HAF1 group being significantly lower than the control. For zymographic analysis, there was no significant difference for metalloproteinase-2 (MMP-2) (p = 0.068), but there was a tendency to increase MMP-2 in the HA group. Despite the influence on angiogenic factors and the apparent tendency for greater trabeculation in the HA and HAF1 groups, there was no significant difference in the area of newly formed bone tissue in the analyzed period.Este estudo avaliou o reparo ósseo em defeitos cirúrgicos de ratos tratados com ácido hialurônico (AH) associado ou não à fração proteica de Hevea brasiliensis (F-1). Foram criados defeitos ósseos em 15 ratos albinos Wistar divididos em 3 grupos (n = 5): Grupo controle (1) - coágulo sanguíneo; Grupo HA (2) - ácido hialurônico 0,5%; Grupo HAF1 (3) - fração proteica F-1 0,1% dissolvida em ácido hialurônico a 0,5%. Após 4 semanas, os animais foram submetidos à eutanásia e o reparo ósseo avaliado por meio de análise histomorfométrica, zimografia e imunohistoquímica. A área óssea neoformada não apresentou diferença significativa (p = 0,757), mas houve tendência de aumento da trabeculação óssea nos grupos HA e HAF1. Para a análise imunoistoquímica, houve diferença na marcação do fator de crescimento endotelial vascular (VEGF) (p = 0,023), sendo maior nos grupos HA e HAF1 do que no grupo controle. Nenhuma diferença significativa na sialoproteína óssea (BSP) (p = 0,681), osteocalcina (p = 0,954), no entanto, diferenças significativas foram encontradas para a molécula de adesão de células endoteliais plaquetárias-1 (CD-31) (p = 0,040), com o grupo HAF1 sendo significativamente inferior ao controle. Para a análise zimográfica, não houve diferença significativa para metaloproteinase-2 (MMP-2) (p = 0,068), mas houve tendência de aumento da MMP-2 no grupo HA. Apesar da influência sobre os fatores angiogênicos e da aparente tendência de maior trabeculação nos grupos HA e HAF1, não houve diferença significativa na área de tecido ósseo neoformado no período analisado.Fil: Issa, João Paulo Mardegan. Universidade de Sao Paulo; BrasilFil: Neto, Otavio Marino Dos Santos. Universidade de Sao Paulo; BrasilFil: Macedo, Ana Paula. Universidade de Sao Paulo; BrasilFil: Gonzaga, Miliane Gonçalves. Universidade de Sao Paulo; BrasilFil: Pereira, Yamba Carla Lara. Universidade de Sao Paulo; BrasilFil: Feldman, Sara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Médicas; Argentin
Os cursos de ciências contábeis no Brasil e o conteúdo das disciplinas de sistemas de informação: a visão acadêmica versus a necessidade prática
The purpose of this study is to identify and quantify the perceived importance given to different topics from Information System field to be taught at accounting graduate Courses. A sample of 200 accounting practitioners from the Ribeirão Preto area (State of São Paulo ) and 71 professors in Accounting from the State of São Paulo Universities (Brazil ) were investigated for this purpose. The results shows that the differences in emphasis given to the 33 selected specific topics are very small. Since the content of Information System field being taught in Accounting graduate Courses is being considered inadequate for the practitioners, this might indicate the need for restructuring the Accounting graduate course to meet the practical needs of accountants and academics expectations. Implications and results will be presented here.O presente trabalho pesquisou um grupo de contadores profissionais (não acadêmicos) da Região de Ribeirão Preto - Estado de São Paulo /Brasil e os professores dos cursos de graduação em contabilidade do Estado de São Paulo /Brasil para identificar e quantificar a importância percebida referente a diversos tópicos da área de sistemas de Informação a se-rem ministrados nos cursos de Ciências Contábeis. Os resultados indicam que existem poucas divergências em relação à ênfase dada pelos acadêmicos e práticos em relação a 33 tópicos selecionados na área de Sistema de Informações. Uma vez que o conteúdo da área de Sistema de Informação está sendo considerado inadequado para os contadores profissionais (não acadêmicos), isto pode significar a necessidade de reestruturação dos cursos de graduação em Contabilidade para atender as necessidades práticas dos contadores, além de atender às expectativas dos acadêmicos
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