cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6858053.v1
title: Economic-financial feasibility of pantaneiro lamb finishing systems

description: ABSTRACT: Technical and economic-financial performance of pantaneiro lamb finishing in feedlot (F) and semi-feedlot (SF) was evaluated. When analyzing the profitability, economic efficiency and the price sensitivity, was profit in all the scenarios evaluated. The gross margin (GM) was 69% and 52%, net margin (NM) was 65% and 48% and profitability index (PI) was 39% and 29%, as well as total productivity of factors (TPF) was R$1.53 and R$1.36, respectively, in the systems F and SF. Investment analysis showed that the activity is economically viable, remunerating all production factors and capital invested. Internal return tax was, respectively, 27% and 16% for the in feedlot and semi-feedlot systems.
DOI: 10.6084/m9.figshare.6858044
title: Extended-time of Noninvasive Positive Pressure Ventilation Improves Tissue Perfusion after Coronary Artery Bypass Surgery: a Randomized Clinical Trial

description: Abstract Objective: To compare the effects of extended- versus short-time noninvasive positive pressure ventilation on pulmonary function, tissue perfusion, and clinical outcomes in the early postoperative period following coronary artery bypass surgery in patients with preserved left ventricular function. Methods: Patients were randomized into two groups according to noninvasive positive pressure ventilation intensity: short-time noninvasive positive pressure ventilation n=20 (S-NPPV) and extended-time noninvasive positive pressure ventilation n=21 (E-NPPV). S-NPPV was applied for 60 minutes during immediate postoperative period and 10 minutes, twice daily, from postoperative days 1-5. E-NPPV was performed for at least six hours during immediate postoperative period and 60 minutes, twice daily, from postoperative days 1-5. As a primary outcome, tissue perfusion was determined by central venous oxygen saturation and blood lactate level measured after anesthetic induction, immediately after extubation and following noninvasive positive pressure ventilation protocols. As a secondary outcome, pulmonary function tests were performed preoperatively and in the postoperative days 1, 3, and 5; clinical outcomes were recorded. Results: Significant drop in blood lactate levels and an improvement in central venous oxygen saturation values in the E-NPPV group were observed when compared with S-NPPV group after study protocol (P&lt;0.01). The E-NPPV group presented higher preservation of postoperative pulmonary function as well as lower incidence of respiratory events and shorter postoperative hospital stay (P&lt;0.05). Conclusion: Prophylactic E-NPPV administered in the early postoperative period of coronary artery bypass surgery resulted in greater improvements in tissue perfusion, pulmonary function and clinical outcomes than S-NPPV, in patients with preserved left ventricular function. Trial Registration: Brazilian Registry of Clinical trial - RBR7sqj78 - http://www.ensaiosclinicos.gov.br
DOI: 10.6084/m9.figshare.6858047
title: Flora of Ceará, Brazil: Polygalaceae

description: Abstract This study aimed carry out the floristic inventory of Polygalaceae species, as part of Flora of Ceará project. The study was based in the analysis of morphological characters of specimens obtained in field or in herborized collections from herbaria EAC, BHCB, HST, HVASF, RB and UFP. The field expeditions were realized between September/2015 and March/2016.. The identifications were based on specialized bibliography, confirmed by analysis of collections-types. In the Ceará State, 20 species and seven genera were registered: Acanthocladus (1) Asemeia (3), Bredemeyera (2), Caamembeca (1), Monnina (1), Polygala (9) and Securidaca (3). The species were registered in distincts vegetation types, but occurs, preferably, in stepic savannah (caatinga) and savannah (cerrado) and 13 (62%) were recorded in five Conservations Units. Monnina insignis and Polygala celosioides are new records for Ceará state.
DOI: 10.6084/m9.figshare.6858044.v1
title: Extended-time of Noninvasive Positive Pressure Ventilation Improves Tissue Perfusion after Coronary Artery Bypass Surgery: a Randomized Clinical Trial

description: Abstract Objective: To compare the effects of extended- versus short-time noninvasive positive pressure ventilation on pulmonary function, tissue perfusion, and clinical outcomes in the early postoperative period following coronary artery bypass surgery in patients with preserved left ventricular function. Methods: Patients were randomized into two groups according to noninvasive positive pressure ventilation intensity: short-time noninvasive positive pressure ventilation n=20 (S-NPPV) and extended-time noninvasive positive pressure ventilation n=21 (E-NPPV). S-NPPV was applied for 60 minutes during immediate postoperative period and 10 minutes, twice daily, from postoperative days 1-5. E-NPPV was performed for at least six hours during immediate postoperative period and 60 minutes, twice daily, from postoperative days 1-5. As a primary outcome, tissue perfusion was determined by central venous oxygen saturation and blood lactate level measured after anesthetic induction, immediately after extubation and following noninvasive positive pressure ventilation protocols. As a secondary outcome, pulmonary function tests were performed preoperatively and in the postoperative days 1, 3, and 5; clinical outcomes were recorded. Results: Significant drop in blood lactate levels and an improvement in central venous oxygen saturation values in the E-NPPV group were observed when compared with S-NPPV group after study protocol (P&lt;0.01). The E-NPPV group presented higher preservation of postoperative pulmonary function as well as lower incidence of respiratory events and shorter postoperative hospital stay (P&lt;0.05). Conclusion: Prophylactic E-NPPV administered in the early postoperative period of coronary artery bypass surgery resulted in greater improvements in tissue perfusion, pulmonary function and clinical outcomes than S-NPPV, in patients with preserved left ventricular function. Trial Registration: Brazilian Registry of Clinical trial - RBR7sqj78 - http://www.ensaiosclinicos.gov.br
DOI: 10.6084/m9.figshare.6858047.v1
title: Flora of Ceará, Brazil: Polygalaceae

description: Abstract This study aimed carry out the floristic inventory of Polygalaceae species, as part of Flora of Ceará project. The study was based in the analysis of morphological characters of specimens obtained in field or in herborized collections from herbaria EAC, BHCB, HST, HVASF, RB and UFP. The field expeditions were realized between September/2015 and March/2016.. The identifications were based on specialized bibliography, confirmed by analysis of collections-types. In the Ceará State, 20 species and seven genera were registered: Acanthocladus (1) Asemeia (3), Bredemeyera (2), Caamembeca (1), Monnina (1), Polygala (9) and Securidaca (3). The species were registered in distincts vegetation types, but occurs, preferably, in stepic savannah (caatinga) and savannah (cerrado) and 13 (62%) were recorded in five Conservations Units. Monnina insignis and Polygala celosioides are new records for Ceará state.
DOI: 10.6084/m9.figshare.6858041
title: Heterogeneous salinity in the root system of bell pepper in greenhouse

description: ABSTRACT The split-root technique was used as a strategy to reduce saline stress on pepper. A completely randomized design with six treatments and four replicates was used. The treatments consisted of six saline water application strategies (T1 - salinized nutrient solution (S1 = 1.4 dS m-1) during the whole cycle; T2 - salinized nutrient solution (S2 = 4.5 dS m-1) throughout the cycle, T3 - S1 and S2 throughout the cycle, using two emitters and without splitting the root system, T4 - S1 and S2, using two emitters and splitting the root system by a plastic film, T5 - S1 and S2, using two emitters and splitting the root system, alternating the solutions every 15 days, T6 - S1 and S2, using two emitters and without splitting the root system, alternating the solutions every 15 days). Five fruit harvests were performed, and the plants were harvested at 85 days after initiation of treatments and evaluated for the following variables: leaf number, leaf area, plant height, stem diameter, shoot dry matter (stem + leaves + fruits), root dry matter, number of fruits, fresh fruit weight and fruit production per plant. Most of the variables were reduced by the salinity of irrigation water. The highest fruit yields were obtained using low-salinity water, with the mixture of non-saline and saline waters, and alternating biweekly when the root system was split, demonstrating the viability of these three techniques.
DOI: 10.6084/m9.figshare.6858041.v1
title: Heterogeneous salinity in the root system of bell pepper in greenhouse

description: ABSTRACT The split-root technique was used as a strategy to reduce saline stress on pepper. A completely randomized design with six treatments and four replicates was used. The treatments consisted of six saline water application strategies (T1 - salinized nutrient solution (S1 = 1.4 dS m-1) during the whole cycle; T2 - salinized nutrient solution (S2 = 4.5 dS m-1) throughout the cycle, T3 - S1 and S2 throughout the cycle, using two emitters and without splitting the root system, T4 - S1 and S2, using two emitters and splitting the root system by a plastic film, T5 - S1 and S2, using two emitters and splitting the root system, alternating the solutions every 15 days, T6 - S1 and S2, using two emitters and without splitting the root system, alternating the solutions every 15 days). Five fruit harvests were performed, and the plants were harvested at 85 days after initiation of treatments and evaluated for the following variables: leaf number, leaf area, plant height, stem diameter, shoot dry matter (stem + leaves + fruits), root dry matter, number of fruits, fresh fruit weight and fruit production per plant. Most of the variables were reduced by the salinity of irrigation water. The highest fruit yields were obtained using low-salinity water, with the mixture of non-saline and saline waters, and alternating biweekly when the root system was split, demonstrating the viability of these three techniques.
DOI: 10.6084/m9.figshare.6858032
title: Acetaminophen Mitigates Myocardial Injury Induced by Lower Extremity Ischemia-Reperfusion in Rat Model

description: Abstract Objective: The injury-reducing effect of acetaminophen, an effective analgesic and antipyretic on ischemia-reperfusion continues to attract great attention. This study analyzed the protective effect of acetaminophen on myocardial injury induced by ischemia-reperfusion in an experimental animal model from lower extremity ischemia-reperfusion. Methods: Twenty-four Sprague-Dawley female rats were randomized into three groups (n=8) as (i) control group (only laparotomy), (ii) aortic ischemia-reperfusion group (60 min of ischemia and 120 min of reperfusion) and (iii) ischemia-reperfusion + acetaminophen group (15 mg/kg/h intravenous acetaminophen infusion starting 15 minutes before the end of the ischemic period and lasting till the end of the reperfusion period). Sternotomy was performed in all groups at the end of the reperfusion period and the heart was removed for histopathological examination. The removed hearts were histopathologically investigated for myocytolysis, polymorphonuclear leukocyte (PMNL) infiltration, myofibrillar edema and focal hemorrhage. Results: The results of histopathological examination showed that acetaminophen was detected to particularly diminish focal hemorrhage and myofibrillar edema in the ischemia-reperfusion + acetaminophen group (P&lt;0.001, P=0.011), while there were no effects on myocytolysis and PMNL infiltration between the groups (P=1.000, P=0.124). Conclusion: Acetaminophen is considered to have cardioprotective effect in rats, by reducing myocardial injury induced by abdominal aortic ischemia-reperfusion.
DOI: 10.6084/m9.figshare.6858032.v1
title: Acetaminophen Mitigates Myocardial Injury Induced by Lower Extremity Ischemia-Reperfusion in Rat Model

description: Abstract Objective: The injury-reducing effect of acetaminophen, an effective analgesic and antipyretic on ischemia-reperfusion continues to attract great attention. This study analyzed the protective effect of acetaminophen on myocardial injury induced by ischemia-reperfusion in an experimental animal model from lower extremity ischemia-reperfusion. Methods: Twenty-four Sprague-Dawley female rats were randomized into three groups (n=8) as (i) control group (only laparotomy), (ii) aortic ischemia-reperfusion group (60 min of ischemia and 120 min of reperfusion) and (iii) ischemia-reperfusion + acetaminophen group (15 mg/kg/h intravenous acetaminophen infusion starting 15 minutes before the end of the ischemic period and lasting till the end of the reperfusion period). Sternotomy was performed in all groups at the end of the reperfusion period and the heart was removed for histopathological examination. The removed hearts were histopathologically investigated for myocytolysis, polymorphonuclear leukocyte (PMNL) infiltration, myofibrillar edema and focal hemorrhage. Results: The results of histopathological examination showed that acetaminophen was detected to particularly diminish focal hemorrhage and myofibrillar edema in the ischemia-reperfusion + acetaminophen group (P&lt;0.001, P=0.011), while there were no effects on myocytolysis and PMNL infiltration between the groups (P=1.000, P=0.124). Conclusion: Acetaminophen is considered to have cardioprotective effect in rats, by reducing myocardial injury induced by abdominal aortic ischemia-reperfusion.
DOI: 10.6084/m9.figshare.6858026
title: A method for estimating the deforestation timeline in rural settlements in a scenario of malaria transmission in frontier expansion in the Amazon Region

description: The Malaria Frontier Hypothesis (MFH) is the current model for predicting malaria emergence in the Brazilian Amazon. It has two important dimensions, ‘settlement time’ and ‘malaria incidence’, and its prediction are: malaria incidence peaks five years after the initiation of human settlement and declines towards zero after an estimated 10 years. Although MFH is currently accepted, it has been challenged recently. Herein, we described a novel method for estimating settlement timeline by using remote sensing technology integrated in an open-software geographic information system. Surprisingly, we found that of the majority of the rural settlements with high malaria incidence are more than 10 years old.
DOI: 10.6084/m9.figshare.6858029
title: Effective diffusivity in yacon potato cylinders during drying

description: ABSTRACT The aim of this study was to obtain the effective diffusivity of yacon potato in fixed-bed dryer at different temperatures (50, 60 and 70 ºC) and drying air velocities (1.0, 1.5 and 2.0 m s-1). Non-linear regression analysis was performed by the Quasi-Newton method using the program Statistica 7.0, where the parameters of the models were estimated as a function of the drying air temperature. Approximation of Diffusion, Two Terms, Henderson & Pabis, and Page models fitted well the experimental data. Drying air temperature and speed influenced the drying time of the samples. The effective diffusivity increased with increasing temperature, ranging from 1.18 x 10-9 to 2.15 x 10-9 m2 s-1.
DOI: 10.6084/m9.figshare.6858026.v1
title: A method for estimating the deforestation timeline in rural settlements in a scenario of malaria transmission in frontier expansion in the Amazon Region

description: The Malaria Frontier Hypothesis (MFH) is the current model for predicting malaria emergence in the Brazilian Amazon. It has two important dimensions, ‘settlement time’ and ‘malaria incidence’, and its prediction are: malaria incidence peaks five years after the initiation of human settlement and declines towards zero after an estimated 10 years. Although MFH is currently accepted, it has been challenged recently. Herein, we described a novel method for estimating settlement timeline by using remote sensing technology integrated in an open-software geographic information system. Surprisingly, we found that of the majority of the rural settlements with high malaria incidence are more than 10 years old.
DOI: 10.6084/m9.figshare.6858029.v1
title: Effective diffusivity in yacon potato cylinders during drying

description: ABSTRACT The aim of this study was to obtain the effective diffusivity of yacon potato in fixed-bed dryer at different temperatures (50, 60 and 70 ºC) and drying air velocities (1.0, 1.5 and 2.0 m s-1). Non-linear regression analysis was performed by the Quasi-Newton method using the program Statistica 7.0, where the parameters of the models were estimated as a function of the drying air temperature. Approximation of Diffusion, Two Terms, Henderson & Pabis, and Page models fitted well the experimental data. Drying air temperature and speed influenced the drying time of the samples. The effective diffusivity increased with increasing temperature, ranging from 1.18 x 10-9 to 2.15 x 10-9 m2 s-1.
DOI: 10.6084/m9.figshare.6858020
title: Comparative analysis of the mechanical properties of a composite material reinforced with carbon fibers and the polymer matrix of epoxy resin

description: ABSTRACT In recent years composite materials have been developed for different applications in engineering areas. This paper first presents the tensile properties of a polymer, in this case an epoxy resin, to be used as the matrix of a fiber reinforced composite material. A study of the mechanical properties is presented, which was carried out by performing tensile tests under the regime of ASTM D638; five resin specimens were manufactured in which a suitable molding process was performed to optimize specimens type I. The objective was to determine the properties of the thermoset matrix to be reinforced with carbon fiber to improve the composite properties. Subsequently, mechanical properties of the composite reinforced with carbon 3k fibers, are analyzed. For proper analysis ten specimens with an orientation [0/+45/-45]s were made; five tensile tests were conducted in composite specimens based on ASTM standard D3039. The specimens manufacturing process followed the VACCUM BAG WET LAY-U method, under normal air. It is found that epoxy resin specimens generate bubbles by mixing and curing in air. These bubbles, working as stress concentrators, weaken the material tensile strength as compared to the mechanical response of the composite material, which certainly shows better performance due to reinforcing carbon fibers and the manufacturing process in vacuum.
DOI: 10.6084/m9.figshare.6858023
title: Native species exploited by marine aquarium trade in Brazil

description: Abstract: Brazil has an important role in marine ornamental trade, exploiting native species for both international and domestic market. A few works have previously assessed wild species exploited by the Brazilian marine aquarium industry and most of them focused solely on fish. Hence, the present paper intends to address an information gap regarding the species currently traded in the country, as well as concerning their conservation statuses. Thus, different sources of information were investigated and each species was categorized in accordance with existing lists of threatened species. A wide variety of native species was identified in Brazilian marine aquarium trade, including not only fish but also invertebrates, seaweeds and macrophytes. Some of these species were legally protected, but are still commerced anyway. Such illegal exploitation of native species causes increasing concerns about the sustainability of the activity. Therefore, in order to reduce environmental impacts caused by marine ornamental trade, Brazilian authorities should encourage the implementation of eco-fees, the purchase of eco-labeled aquarium products, the development of sustainable ornamental aquaculture and ecosystem-based management initiatives.
DOI: 10.6084/m9.figshare.6858017
title: Determination of the fracture toughness J on CARALL type fiber-metal laminates with aluminium 6061 and 1050

description: ABSTRACT Determination of fracture toughness in hybrid composites, fiber-metal laminates, FML (Fiber Metal Laminates) is very important to perform an analysis of structural integrity to estimate damage tolerance and residual strength of the material against the propagation of a crack This evaluation should be done in both naval and aircraft structures using FML CARALL compounds (CArbon Reinforced Aluminum Laminates) type. In this work, the experimental determination of fracture toughness is presented in terms of the parameter J using compact specimens C (T) on the laminated composite with foils of 6061-O in one case and 1050 on the other one and carbon fibers NCT- 301 embedded in epoxy resin for both materials. The results indicate that the adaptation of the elasto-plastic fracture toughness techniques are acceptable to for determining J toughness on CARALL type compounds [3-4]. A comparative analysis among the two type of composite materials reveals the differences in the response to crack propagation.
DOI: 10.6084/m9.figshare.6858014
title: Caracterización de compositos biocerámicos en esponjas de titanio mediante interpenetración por corriente pulsada asistida

description: ABSTRACT Recently, it has been directing some special attention to the development of new manufacturing processes, with engineering applications in human tissues [1]. 3D printing applied to tissue engineering requires pulse computational techniques such as stereolithographic modeling, and special manufacturing processes, to name a few; Laser Sintering or Extrusion Deposition [2]. Despite the advances, applications have been limited due to the characteristics and properties of the materials used, so they must meet the biomaterial conditions. On the other hand, biomimicry of materials should be biologically and mechanically imitated when possible on the aim and surrounding tissue. The architecture of these materials must allow adhesion, nucleation, growth, proliferation and transport of living cells for tissue regeneration [3]. Hence, it is exhibited the importance of getting porous scaffolds [4]. In the present work, titanium was obtained with different levels of porosity (metal sponges), in order to locate an average convenient pore size. The synthesis of metal sponges was performed by pulsed current assisted sintering using a spacer. The content of the spacer modifies the temperature gradient during the synthesis; however it was noted that the morphological characteristics of the material and crystal were unchanged. During sintering, the operating conditions were constant and reproducible. The properties and composition of the materials obtained were analyzed and compared to commercial materials. The results suggest that this material could be successfully used in clinical applications.
DOI: 10.6084/m9.figshare.6858017.v1
title: Determination of the fracture toughness J on CARALL type fiber-metal laminates with aluminium 6061 and 1050

description: ABSTRACT Determination of fracture toughness in hybrid composites, fiber-metal laminates, FML (Fiber Metal Laminates) is very important to perform an analysis of structural integrity to estimate damage tolerance and residual strength of the material against the propagation of a crack This evaluation should be done in both naval and aircraft structures using FML CARALL compounds (CArbon Reinforced Aluminum Laminates) type. In this work, the experimental determination of fracture toughness is presented in terms of the parameter J using compact specimens C (T) on the laminated composite with foils of 6061-O in one case and 1050 on the other one and carbon fibers NCT- 301 embedded in epoxy resin for both materials. The results indicate that the adaptation of the elasto-plastic fracture toughness techniques are acceptable to for determining J toughness on CARALL type compounds [3-4]. A comparative analysis among the two type of composite materials reveals the differences in the response to crack propagation.