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Economic Feasibility of Canola Production in the Region of Campos Gerais, Paraná, Brazil

American Journal of Plant Sciences 2018年第5期9卷 958-965页

作者： Eriton Luiz Mainardes Luiz Cláudio Garcia Pedro Henrique Weirich Neto Carlos Hugo Rocha Thiago Inagaki Natali Maidl de Souza Guilherme Pedrollo Mazer jaime alberti gomes Ivan Cesar Furmann Moura éverson Pedro Zeny State University of Ponta Grossa Campus Uvaranas Ponta Grossa Brasil

This study aimed to analyze the economic feasibility of canola production (Brassica napus var oleifera) for the region Campos Gerais-PR. We interviewed eight producers, and used information from four of them for economic analysis of agricultural crops in 2012, 2013 and 2014. The variables analyzed were: grain production cost, economical analysis (hurdle rate, net present value, internal rate of return, payback, lucratively index, profitability index and sensitivity analysis) and vegetable oil production costs. We compared the performance of canola, wheat (Triticum aestivum)—as the main crop in the autumn/winter—and soybean (Glycine max)—by liquidity in the world market. It was concluded that although the economic analysis indicates superior results of canola production compared to the wheat crop and vegetable oil production is more attractive financially than soybean, but the culture of canola is still insignificant in the region of Campos Gerais (PR). The producers interviewed pointed to limit the expansion of culture financing the limited farming, production technology in consolidation, the need for machine adjustments and canola be host of the white mold disease (Sclerotinia sclerotiorun).

关键词： Brassica napus Production Systems Profitability

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The Influence of Additions in the Use of Glass Fibre Reinforced Cement as a Construction Material

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Materials Sciences and Applications 2016年第2期7卷 89-100页

作者： Alejandro Enfedaque Marcos G. alberti jaime C. Galvez Department of Civil Engineering: Construction E.T.S. de Ingenieros de Caminos Canales y Puertos Universidad Polit&eacute cnica de Madrid Madrid Spain

Although in recent years glass fibre reinforced cement (GRC) has been used in buildings and infrastructure, its application in structural elements has been somewhat restricted due to the worsening of its mechanical properties with ageing and the limited data available related with its fracture energy. With the aim of developing existing knowledge of GRC, the fracture energy in an in-plane and out-of-plane direction of the panel has been obtained. Three types of GRC with different formulations have been tested. The results showed that the fracture energy of a GRC with a 25% addition of a pozzolanic admixture is 40% and 8% higher than a standard GRC in, respectively, in-plane and out-of-plane directions. Similarly, an addition of 25% of thermal-treated kaolin to a standard GRC increases its fracture energy up to 490% and 400%, to the corresponding orientation. The use of digital image correlation (DIC) in the fracture test analysis has permitted a description of the damaging patterns and explanation of the behaviours identified in the fracture tests performed. The multi-cracking process that appears explains the higher fracture energy found in the GRC with an addition of 25% of the aforementioned thermal-treated kaolin. The analysis performed by means of DIC and the results obtained showed GRC with an addition of 25% of thermal-treated kaolin to be the most suitable formulation for possible future structural applications with a short life span in horizontal and vertical elements.

关键词： GRC Fracture Energy Glass Fibre Digital Image Correlation DIC

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Yield of capsule endoscopy in obscure gastrointestinal bleeding:A comparative study between premenopausal and menopausal women

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World Journal of Gastrointestinal Endoscopy 2018年第10期10卷 301-307页

作者： Joao Carlos Silva Rolando Pinho Adélia Rodrigues Ana Ponte jaime Pereira Rodrigues Mafalda Sousa Catarina gomes Joao Carvalho Department of Gastroenterology Centro Hospitalar Vila Nova de Gaia/EspinhoPorto 4434-502Portugal

AIM To evaluate differences in capsule endoscopy(CE) performed in the setting of obscure gastrointestinal bleeding(OGIB) among premenopausal women(PMW) and menopausal women(MW).METHODS Retrospective, single-center study, including female patients submitted to CE in the setting of OGIB between May 2011 and December 2016. Patients were divided into 2 groups according to age, considering fertile age as ≤ 55 years and postmenopausal age as > 55 years. The diagnostic yield(DY), the rebleeding rate and the time to rebleed were evaluated and compared between groups. Rebleeding was defined as a drop of Hb > 2 g/dL or need for transfusional support or presence of melena/*** A hundred and eighty three female patients underwent CE for OGIB, of whom 30.6%(n = 56) were PMW and 69.4%(n = 127) were MW. The DY was 30.4% in PMW and 63.8% in MW. The most common findings were angiodysplasias in both groups(PMW: 21.4%, MW: 44.9%)(P = 0.003). In PMW, only 1.8% required therapeutic endoscopy. In 17.3% of MW, CE findingsled to additional endoscopic treatment. Rebleeding at 1, 3 and 5 years in PMW was 3.6%, 10.2%, 10.2% and 22.0%, 32.3% and 34.2% in MW. Postmenopausal status was significantly associated with higher DY(P < 0.001), TY(P = 0.003), rebleeding(P = 0.031) and lower time to rebleed(P = 0.001).CONCLUSION PMW with suspected OGIB are less likely to have significant findings in CE. In MW DY, need for endoscopic treatment and rebleeding were significantly higher while time to rebleed was lower.

关键词： Diagnostic yield Obscure gastrointestinal bleeding Premenopausal women Menopausal women Capsule endoscopy

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Impact of the timing of capsule endoscopy in overt obscure gastrointestinal bleeding on yield and rebleeding rate-is sooner than 14 d advisable?

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World Journal of Gastrointestinal Endoscopy 2018年第4期10卷 74-82页

作者： Catarina gomes Rolando Pinho Adélia Rodrigues Ana Ponte Joana Silva jaime Pereira Rodrigues Mafalda Sousa Joao Carlos Silva Joao Carvalho Department of Gastroenterology Centro Hospitalar Vila Nova de Gaia/EspinhoPorto 4434502Portugal

AIM To evaluate the impact of the timing of capsule endoscopy(CE) in overt-obscure gastrointestinal bleeding(OGIB). METHODS Retrospective, single-center study, including patients submitted to CE in the setting of overt-OGIB between January 2005 and August 2017. Patients were divided into 3 groups according to the timing of CE(≤ 48 h; 48 h-14 d; ≥ 14 d). The diagnostic and therapeutic yield(DY and TY), the rebleeding rate and the time to rebleed were calculated and compared between groups. The outcomes of patients in whom CE was performed before(≤ 48 h) and after 48 h(> 48 h), and before( 48 h groups(P = 0.03).CONCLUSION Performing CE within 48 h from overt-OGIB is associated to a higher TY and a lower rebleeding rate and longer time to rebleed.

关键词： Overt-obscure gastrointestinal bleeding Capsule endoscopy Timing Diagnosis Therapeutic Rebleeding

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