Endoscopic Revision of Weight Loss Failure

Manoel Galvao Neto 대한외과학회 2020 대한외과학회 학술대회 초록집 Vol.2020 No.11

COVID-19 Urban Form Digressions Urban life representations, citizen participation and sociospatial disaggregation patterns

Manoel RODRIGUES ALVES,Camila Moreno de CAMARGO 서울대학교 환경대학원 2020 環境論叢 Vol.66 No.-

COVID-19, in urban areas, is associated with processes that indicate socio-spatial dynamics and practices in an urban morphology that, resulting from uneven urban development patterns, promotes serious health commitments to groups exposed to the risk of viral transmission. Through critical cartographies, based on public research databases, we question urban space transformation trends, urban morphology and living spaces - their nexuses with socioeconomic data, social vulnerability and support capacity. As a new layer, collaborative mappings promoted by diffuse entities and organizations are associated to significant aspects of urban reality. In view of the social isolation due to the pandemic COVID-19 we argue that critical cartographies and initiatives of citizen participation, can, on the one hand, be a counterargument to certain representations and contribute to a more effective reading of the transformations underway and, on the other hand, become an effective instrument for registering people’s perceptions and interpretations, as well as a tool for empowering people.

Gallbladder stones in bariatrics and management of choledocholithiasis after gastric bypass

Mariano Palermo,Manoel Galvao Neto 소화기인터벤션의학회 2019 Gastrointestinal Intervention Vol.8 No.1

It is known that the rapid weight loss is a predisposing factor to develop biliary lithiasis. The physiopathology is related with an oversaturation of bile with cholesterol, bile stasis, and increase in mucin concentration in bile. The incidence of cholelithiasis post gastric bypass is estimated around 37%. Almost 50% developed disease in the first year of monitoring, and 60% in the first 6 months. Meanwhile the patients undergoing sleeve gas-trectomy have an incidence of cholelithiasis of 27%. Diverse kinds of protocols exist: prophylactic surgery (simultaneous cholecystectomy and gastric bypass in every patients, whether they have or not cholelithiasis), elective (simultaneous cholecystectomy with conventional gastric bypass in the patients with asymptomatic cholelithiasis), and conventional cholecystectomy only in the presence of cholelithiasis with symptoms. Which way to go is still a topic of discussion among surgeons but the majority agree that prophylactic surgery shouldn’t be an option because the number of patients that will develop symptomatic cholelithiasis is low (around 6% to 8% of them) and this leads to an elevated number of patients exposed to an unnecessary procedure with potential complications. The presence of gallstones in the common bile duct (CBD) although is a rare complica-tion after Roux-en-Y gastric bypass (around 0.2% of the bariatric patients) represents an important challenge due to the anatomical modifications of the gastrointestinal tract. This leads to having to pursue other methods to reach the papillae for the resolution of choledocholithiasis: laparoscopy-assisted transgastric endoscopic retrograde cholangiopancreatography (ERCP), balloon enteroscopy assisted ERCP, percutaneous biliary drainage with subsequent trans fistula treatment and laparoscopic exploration of CBD. Which of these methods should we choose must be based on the surgeon experience, the equipment available and the location of the stone. But whatever the method, a special training is needed on endoscopy, percutaneous surgery and laparoscopy.

Gallbladder stones in bariatrics and management of choledocholithiasis after gastric bypass

Mariano Palermo,Manoel Galvao Neto 소화기인터벤션의학회 2019 International journal of gastrointestinal interven Vol.8 No.1

It is known that the rapid weight loss is a predisposing factor to develop biliary lithiasis. The physiopathology is related with an oversaturation of bile with cholesterol, bile stasis, and increase in mucin concentration in bile. The incidence of cholelithiasis post gastric bypass is estimated around 37%. Almost 50% developed disease in the first year of monitoring, and 60% in the first 6 months. Meanwhile the patients undergoing sleeve gas-trectomy have an incidence of cholelithiasis of 27%. Diverse kinds of protocols exist: prophylactic surgery (simultaneous cholecystectomy and gastric bypass in every patients, whether they have or not cholelithiasis), elective (simultaneous cholecystectomy with conventional gastric bypass in the patients with asymptomatic cholelithiasis), and conventional cholecystectomy only in the presence of cholelithiasis with symptoms. Which way to go is still a topic of discussion among surgeons but the majority agree that prophylactic surgery shouldn’t be an option because the number of patients that will develop symptomatic cholelithiasis is low (around 6% to 8% of them) and this leads to an elevated number of patients exposed to an unnecessary procedure with potential complications. The presence of gallstones in the common bile duct (CBD) although is a rare complica-tion after Roux-en-Y gastric bypass (around 0.2% of the bariatric patients) represents an important challenge due to the anatomical modifications of the gastrointestinal tract. This leads to having to pursue other methods to reach the papillae for the resolution of choledocholithiasis: laparoscopy-assisted transgastric endoscopic retrograde cholangiopancreatography (ERCP), balloon enteroscopy assisted ERCP, percutaneous biliary drainage with subsequent trans fistula treatment and laparoscopic exploration of CBD. Which of these methods should we choose must be based on the surgeon experience, the equipment available and the location of the stone. But whatever the method, a special training is needed on endoscopy, percutaneous surgery and laparoscopy.

A CoAP Based Control Plane for Software Defined Wireless Sensor Networks

Márcio L. F. Miguel,Manoel C. Penna,Edgard Jamhour,Marcelo E. Pellenz 한국통신학회 2017 Journal of communications and networks Vol.19 No.6

WSN have limitations that make them difficult to applyin critical and large-scale scenarios. The main identified barriersare the difficulty of building the management system, and theirlack of flexibility to adapt to policy changes. Software defined networking(SDN) is a viable alternative to solve these limitations. Besides,SDN can bring several other benefits to WSN, allowing, forexample, complex network applications to run on the controller. A new approach called software-defined wireless sensor network(SDWSN) is increasing in interest by the research community, andin this paper, we propose a new SDWSN control plane based on theconstrained application protocol (CoAP). We provide a comprehensivespecification for the control plane, including the communicationinfrastructure, the control plane protocol, and the basicnetworking functions in controllers (topology discovery and flowcontrol). We show how the proposed control plan can be implementedin the Contiki operating system and present a preliminaryperformance evaluation of the overhead introduced by the controlplane protocol.

EVOLUTION OF MONETARY POLICY TRANSMISSION MECHANISM IN MALAWI: A TVP-VAR APPROACH

CHANCE NGAMANYA MWABUTWA,NICOLA VIEGI,MANOEL BITTENCOURT 중앙대학교 경제연구소 2016 Journal of Economic Development Vol.41 No.1

This paper investigates the evolution of monetary transmission mechanism in Malawi between 1981 and 2010 using a time varying parameter vector autoregressive (TVP-VAR) model with stochastic volatility. We evaluate how the responses of real output and general price level to bank rate, exchange rate and credit shocks have changed over time since Malawi adopted financial reforms in 1980s. It is becoming clear from literature that financial reforms can change the monetary transmission by changing the overall impact of the policy or by altering the transmission channels overtime. Therefore, the impact of monetary policy on price stability and output growth can vary and portray delayed effects overtime. The paper finds that inflation and real output responses to monetary policy shocks changed over the period under the review. Importantly, beginning mid-2000s, the monetary transmission performed consistently with predictions of economic theory partly due to stable macroeconomic conditions and positive structural changes in the economy. However, the statistical significance of the private credit supply remains weak and this calls for more financial reforms targeting the credit market which can contribute to monetary transmission and promote further economic growth in Malawi.

Do conventional glass ionomer cements release more fluoride than resin-modified glass ionomer cements?

Cabral, Maria Fernanda Costa,Martinho, Roberto Luiz de Menezes,Guedes-Neto, Manoel Valcacio,Rebelo, Maria Augusta Bessa,Pontes, Danielson Guedes,Cohen-Carneiro, Flavia The Korean Academy of Conservative Dentistry 2015 Restorative Dentistry & Endodontics Vol.40 No.3

Objectives: The aim of this study was to evaluate the fluoride release of conventional glass ionomer cements (GICs) and resin-modified GICs. Materials and Methods: The cements were grouped as follows: G1 (Vidrion R, SS White), G2 (Vitro Fil, DFL), G3 (Vitro Molar, DFL), G4 (Bioglass R, Biodinamica), and G5 (Ketac Fil, 3M ESPE), as conventional GICs, and G6 (Vitremer, 3M ESPE), G7 (Vitro Fil LC, DFL), and G8 (Resiglass, Biodinamica) as resin-modified GICs. Six specimens (8.60 mm in diameter; 1.65 mm in thickness) of each material were prepared using a stainless steel mold. The specimens were immersed in a demineralizing solution (pH 4.3) for 6 hr and a remineralizing solution (pH 7.0) for 18 hr a day. The fluoride ions were measured for 15 days. Analysis of variance (ANOVA) and Tukey's test with 5% significance were applied. Results: The highest amounts of fluoride release were found during the first 24 hr for all cements, decreasing abruptly on day 2, and reaching gradually decreasing levels on day 7. Based on these results, the decreasing scale of fluoride release was as follows: G2 > G3 > G8 = G4 = G7 > G6 = G1 > G5 (p < 0.05). Conclusions: There were wide variations among the materials in terms of the cumulative amount of fluoride ion released, and the amount of fluoride release could not be attributed to the category of cement, that is, conventional GICs or resin-modified GICs.

Numerical simulations of deep penetration problems using the material point method

Lorenzo, R.,da Cunha, Renato P.,Cordao Neto, Manoel P.,Nairn, John A. Techno-Press 2016 Geomechanics & engineering Vol.11 No.1

Penetration problems in geomechanics are common. Usually the soil is heavily disturbed around the penetrating bodies and large deformations and distortions can occur. The simulation of the installation of displacement piles is a good example of the interest of these types of problems for geomechanics. In this paper the Material Point Method is used to overcome the difficulties associated with the simulations of problems involving large deformation and full displacement type penetration. Recent modifications of the Material Point Method known as Generalized Interpolation Material Point and the Convected Particle Domain Interpolation are also used and evaluated in some of the examples. Herein a footing submitted to large settlements is presented and simulated, together with the processes associated to a driven pile under undrained conditions. The displacements of the soil surrounding the pile are compared with those obtained by the Small Strain Path Method. In addition, the Modified Cam Clay model is implemented in a code of MPM and used to simulate the process of driving a pile in dry sand. Good and rather encouraging agreement is found between compared data.

Do conventional glass ionomer cements release more fluoride than resin-modified glass ionomer cements?

Maria Fernanda Costa Cabral,Roberto Luiz de Menezes Martinho,Manoel Valcácio Guedes-Neto,Maria Augusta Bessa Rebelo,Danielson Guedes Pontes,Flávia Cohen-Carneiro 대한치과보존학회 2015 Restorative Dentistry & Endodontics Vol.40 No.3

Objectives: The aim of this study was to evaluate the fluoride release of conventional glass ionomer cements (GICs) and resin-modified GICs. Materials and Methods: The cements were grouped as follows: G1 (Vidrion R, SS White), G2 (Vitro Fil, DFL), G3 (Vitro Molar, DFL), G4 (Bioglass R, Biodinâmica), and G5 (Ketac Fil, 3M ESPE), as conventional GICs, and G6 (Vitremer, 3M ESPE), G7 (Vitro Fil LC, DFL), and G8 (Resiglass, Biodinâmica) as resin-modified GICs. Six specimens (8.60 mm in diameter; 1.65 mm in thickness) of each material were prepared using a stainless steel mold. The specimens were immersed in a demineralizing solution (pH 4.3) for 6 hr and a remineralizing solution (pH 7.0) for 18 hr a day. The fluoride ions were measured for 15 days. Analysis of variance (ANOVA) and Tukey’s test with 5% significance were applied. Results: The highest amounts of fluoride release were found during the first 24 hr for all cements, decreasing abruptly on day 2, and reaching gradually decreasing levels on day 7. Based on these results, the decreasing scale of fluoride release was as follows: G2 > G3 > G8 = G4 = G7 > G6 = G1 > G5 (p < 0.05). Conclusions: There were wide variations among the materials in terms of the cumulative amount of fluoride ion released, and the amount of fluoride release could not be attributed to the category of cement, that is, conventional GICs or resin-modified GICs.

A CAD/CAM-based strategy for concurrent endodontic and restorative treatment

Patricia Maria Escobar,Anil Kishen,Fabiane Carneiro Lopes,Caroline Cristina Borges,Eugenio Gabriel Kegler,Manoel Damião Sousa-Neto 대한치과보존학회 2019 Restorative Dentistry & Endodontics Vol.44 No.3

This case report describes a technique in which endodontic treatment and permanent indirect restoration were completed in the same clinical appointment with the aid of a computer-aided design/computer-aided manufacturing (CAD/CAM) system. Two patients were diagnosed with irreversible pulpitis of the mandibular first molar. After access preparation, root canals were located, irrigation was performed until bleeding ceased, and the coronal tooth structure was prepared for indirect restoration. Then, utilizing an interim 3-mm build-up of the endodontic access cavity, a hemi-arch digital scan was performed with an intraoral scanner. Subsequent to digital scanning, restoration design was performed simultaneously with the endodontic procedure. The root canals were shaped using the Race system under irrigation with 2.5% sodium hypochlorite followed by root canal filling. The pulp chamber was subsequently filled with a 3-mm-thick composite resin restoration mimicking the interim build-up previously utilized to facilitate block milling in the CAD/ CAM system. Clinical try-in of the permanent onlay restoration was followed by acid etching, application of a 5th generation adhesive, and cementation of the indirect restoration. Once the restoration was cemented, rubber dam isolation was removed, followed by occlusal adjustment and polishing. After 2 years of follow-up, the restorations were esthetically and functionally satisfactory, without complications.