cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5931409.v1
title: Viscoelastic Substrates Effects on the Elimination or Reduction of the Sandwich Structures Oscillations Based on the Kelvin-Voigt Model

description: Abstract Effects of viscoelastic substrates on the sandwich structures oscillations are examined in this paper. In this regard, dynamic response of sandwich annular panels with FG polar orthotropic face sheets resting on viscoelastic substrate is presented. Young’s modulus in the radial and circumferential direction, shear modulus and density of each face sheet may be varied continuously in the radial direction. The viscoelastic substrate is modeled as Kelvin-Voigt foundation. To describe more accurately response of sandwich structures, the governing dynamical equations are derived based on the layerwise theory and five systems of second order coupled partial differential equations are obtained. The effects of the stiffness and damping coefficients of the foundation on the dynamic behavior of sandwich plate are investigated for various transient loads and boundary condition. Since no available results may be found in literature to demonstrate the efficiency and accuracy of the obtained results, the obtained results are verified by comparison with finite element results based on the three dimensional theory of elasticity for some special cases.
DOI: 10.6084/m9.figshare.5931406
title: Accumulation of copper by the aquatic macrophyte Salvinia biloba Raddi (Salviniaceae)

description: Abstract Aquatic macrophytes have properties and mechanisms which are useful for the removal of substances in solution, commonly used in phytoremediation processes in aquatic environments. This study evaluated the performance of copper (Cu) accumulation by Salvinia biloba Raddi (Salviniaceae) in different metal concentrations (1, 3 and 5 µg mL-1), as well as the control treatment, measured at intervals of 0, 7 and 14 days under laboratory conditions, with control as to pH and luminosity. After the experiment, the S. biloba biomass was washed, kiln dried, crushed and subjected to the process of digestion, and subsequently the accumulated copper content was determined by atomic absorption spectroscopy. The results showed that S. biloba is apt at accumulating copper, varying significantly between different treatments and days of exposure to the contaminant, as well as its interaction (treatment × days). The highest accumulation values were observed in treatment with 5 µg mL-1, which at 14 days, with 11,861 µg g-1 of copper. We observed symptoms of toxicity and mortality in plants, probably indicating the effect of copper on the species when at high levels. Salvinia biloba is an efficient species in the removal of copper in solution, its recommendation as a remediating agent in aquatic ecosystems being possible.
DOI: 10.6084/m9.figshare.5931406.v1
title: Accumulation of copper by the aquatic macrophyte Salvinia biloba Raddi (Salviniaceae)

description: Abstract Aquatic macrophytes have properties and mechanisms which are useful for the removal of substances in solution, commonly used in phytoremediation processes in aquatic environments. This study evaluated the performance of copper (Cu) accumulation by Salvinia biloba Raddi (Salviniaceae) in different metal concentrations (1, 3 and 5 µg mL-1), as well as the control treatment, measured at intervals of 0, 7 and 14 days under laboratory conditions, with control as to pH and luminosity. After the experiment, the S. biloba biomass was washed, kiln dried, crushed and subjected to the process of digestion, and subsequently the accumulated copper content was determined by atomic absorption spectroscopy. The results showed that S. biloba is apt at accumulating copper, varying significantly between different treatments and days of exposure to the contaminant, as well as its interaction (treatment × days). The highest accumulation values were observed in treatment with 5 µg mL-1, which at 14 days, with 11,861 µg g-1 of copper. We observed symptoms of toxicity and mortality in plants, probably indicating the effect of copper on the species when at high levels. Salvinia biloba is an efficient species in the removal of copper in solution, its recommendation as a remediating agent in aquatic ecosystems being possible.
DOI: 10.6084/m9.figshare.5931403
title: Calcium deposits in the cornea: histopathological study

description: Abstract Objective: To study, through histopathological examination, calcium deposits in the cornea and its different presentation forms. Methods: Observational, transversal, retrospective and descriptive study of corneal buttons from penetrating keratoplasty from 2006 to 2015. Routine staining was performed with Hematoxylin-eosin, and in some cases additional staining was performed: Masson, PAS (Periodic Acid Of Schiff reaction) and reticulin. The tissues were examined with an optical microscope by the authors. We selected only the cases in which calcium deposits were identified in the histopathological examination. After the cases were selected, a chart review was carried out looking for information about sex, age and transplantation etiology. Results: Twelve cases were included. The different forms of corneal calcium deposits presentation found in the histopathological examination were granules, plaques and oval formations or their associations. The main form of deposition were isolated or associated granules in 9 (75%) cases, followed by isolated or associated plaques in 8 (66.66% cases). The most frequent association was granule + plaque in 5 (41.66%) cases, followed by granules + oval formations in 2 (16.66%) cases. From the findings in the histopathological examination, a classification and a possible evolution of the corneal calcium deposits was proposed. Conclusion: Through histopathological examination we demonstrate the different forms of calcium deposits presentation in the cornea and propose a possible evolution for them. Oval formations were described as a new presentation form for these deposits, which remain demanding a better understanding.
DOI: 10.6084/m9.figshare.5931403.v1
title: Calcium deposits in the cornea: histopathological study

description: Abstract Objective: To study, through histopathological examination, calcium deposits in the cornea and its different presentation forms. Methods: Observational, transversal, retrospective and descriptive study of corneal buttons from penetrating keratoplasty from 2006 to 2015. Routine staining was performed with Hematoxylin-eosin, and in some cases additional staining was performed: Masson, PAS (Periodic Acid Of Schiff reaction) and reticulin. The tissues were examined with an optical microscope by the authors. We selected only the cases in which calcium deposits were identified in the histopathological examination. After the cases were selected, a chart review was carried out looking for information about sex, age and transplantation etiology. Results: Twelve cases were included. The different forms of corneal calcium deposits presentation found in the histopathological examination were granules, plaques and oval formations or their associations. The main form of deposition were isolated or associated granules in 9 (75%) cases, followed by isolated or associated plaques in 8 (66.66% cases). The most frequent association was granule + plaque in 5 (41.66%) cases, followed by granules + oval formations in 2 (16.66%) cases. From the findings in the histopathological examination, a classification and a possible evolution of the corneal calcium deposits was proposed. Conclusion: Through histopathological examination we demonstrate the different forms of calcium deposits presentation in the cornea and propose a possible evolution for them. Oval formations were described as a new presentation form for these deposits, which remain demanding a better understanding.
DOI: 10.6084/m9.figshare.5931391
title: The peak velocity of Carminatti’s Test for aerobic-fitness training in male soccer players

description: Abstract Aerobic energy transference is highly required and accounts for more than 90% of total energy consumption during a soccer match. In addition high aerobic fitness contributes to recovery from high-intensity intermittent exercise, specific to performance in soccer. The aim of the present study was to examine whether the peak velocity in the Carminatti’s test (PVT-CAR) for prescribing interval-training drills is effective in eliciting aerobic-fitness development intensities in male soccer-players. Fifteen Brazilian male elite soccer-players (U20) were tested for T-CAR and monitored for heart rate (HR) during PVT-CAR prescribed interval-training drills (i.e., 4x4min with 3min passive recovery). Drills were performed with a 1:1 work-to-rest ratio with either straight-line (6/6s) or 180° shuttle running (12/12s). The interval training performed at PVT-CAR elicited HR above 90% of HRmax and lactate above 4m.mol.l-1. In the shuttle-running drills, HR and lactate (93.3±2.1% HRmax; 7.7±1.4 m.mol.l-1) were significantly higher than in the straight line drills (vs 90.3±2.6 %HRmax; 4.5±0.9 m.mol.l-1). The coefficient of variations showed low inter-subject variability in HR (CV 2.3 and 3.0% for 12/12 and 6/6 respectively). The results of this study demonstrated that PVT-CAR can be successfully used to individualize high-intensity interval running training in players with different aerobic profiles, while shuttle-running drills presented higher values at intern load than straight line. The physiological and time-motion profiles resemble the most demanding phases of the match, especially for the fittest players.
DOI: 10.6084/m9.figshare.5931391.v1
title: The peak velocity of Carminatti’s Test for aerobic-fitness training in male soccer players

description: Abstract Aerobic energy transference is highly required and accounts for more than 90% of total energy consumption during a soccer match. In addition high aerobic fitness contributes to recovery from high-intensity intermittent exercise, specific to performance in soccer. The aim of the present study was to examine whether the peak velocity in the Carminatti’s test (PVT-CAR) for prescribing interval-training drills is effective in eliciting aerobic-fitness development intensities in male soccer-players. Fifteen Brazilian male elite soccer-players (U20) were tested for T-CAR and monitored for heart rate (HR) during PVT-CAR prescribed interval-training drills (i.e., 4x4min with 3min passive recovery). Drills were performed with a 1:1 work-to-rest ratio with either straight-line (6/6s) or 180° shuttle running (12/12s). The interval training performed at PVT-CAR elicited HR above 90% of HRmax and lactate above 4m.mol.l-1. In the shuttle-running drills, HR and lactate (93.3±2.1% HRmax; 7.7±1.4 m.mol.l-1) were significantly higher than in the straight line drills (vs 90.3±2.6 %HRmax; 4.5±0.9 m.mol.l-1). The coefficient of variations showed low inter-subject variability in HR (CV 2.3 and 3.0% for 12/12 and 6/6 respectively). The results of this study demonstrated that PVT-CAR can be successfully used to individualize high-intensity interval running training in players with different aerobic profiles, while shuttle-running drills presented higher values at intern load than straight line. The physiological and time-motion profiles resemble the most demanding phases of the match, especially for the fittest players.
DOI: 10.6084/m9.figshare.5931388
title: Peculiar Properties of Phase Transitions in Na0.5Bi0.5TiO3-xBaTiO3 (0

description: Na0.5Bi0.5TiO3-xBaTiO3 (0
DOI: 10.6084/m9.figshare.5931388.v1
title: Peculiar Properties of Phase Transitions in Na0.5Bi0.5TiO3-xBaTiO3 (0

description: Na0.5Bi0.5TiO3-xBaTiO3 (0
DOI: 10.6084/m9.figshare.5931382
title: Evolution of studies on the 'Networks' theme between researchers of the WG7 in the ENANCIBS (2011 to 2016)

description: ABSTRACT Exploratory and qualitative-quantitative research, supported by a bibliographical research, which aims to characterize the evolution of scientific research on the theme "Networks" in Working Group 7 (WG7), between the years 2011 to 2016, of the National Research Association And Post-Graduation in Information Science (ANCIB). It discusses the approaches and theories of Social Networks, such as concepts, typologies and methodologies. It presents and discusses the networks of authors that published on "Networks" in the National Meeting of Research in Information Science (ENANCIB), during the period and within the WG analyzed. It characterizes the researchers regarding the academic formation. Presents and discusses collaboration between institutions. It analyzes the issues most addressed in the publications. In view of the quantitative data, we observed the relevance of the topic within WG7, the receptivity of the topic in institutions of almost the entire Brazilian territory, the existence of connections with foreign institutions, a strong institutional relationship among the actors constituting orientation networks, a variety of academic backgrounds, But with predominance of authors with formation in CI or sister areas and significant occurrence of co-authorship networks in network studies.
DOI: 10.6084/m9.figshare.5931382.v1
title: Evolution of studies on the 'Networks' theme between researchers of the WG7 in the ENANCIBS (2011 to 2016)

description: ABSTRACT Exploratory and qualitative-quantitative research, supported by a bibliographical research, which aims to characterize the evolution of scientific research on the theme "Networks" in Working Group 7 (WG7), between the years 2011 to 2016, of the National Research Association And Post-Graduation in Information Science (ANCIB). It discusses the approaches and theories of Social Networks, such as concepts, typologies and methodologies. It presents and discusses the networks of authors that published on "Networks" in the National Meeting of Research in Information Science (ENANCIB), during the period and within the WG analyzed. It characterizes the researchers regarding the academic formation. Presents and discusses collaboration between institutions. It analyzes the issues most addressed in the publications. In view of the quantitative data, we observed the relevance of the topic within WG7, the receptivity of the topic in institutions of almost the entire Brazilian territory, the existence of connections with foreign institutions, a strong institutional relationship among the actors constituting orientation networks, a variety of academic backgrounds, But with predominance of authors with formation in CI or sister areas and significant occurrence of co-authorship networks in network studies.
DOI: 10.6084/m9.figshare.5931373
title: Static Limit Analysis of Reinforced Soil Structures by a Simple Finite Element and Second-Order Cone Programming

description: Abstract To discretize reinforced soil structures in plane strain and predict their collapse load, a simple three-node triangular finite element is formulated based on the static theorem of the limit analysis. The element satisfies the equilibrium equations and the mechanical boundary conditions in a weak sense. A modified Mohr-Coulomb yield surface is adopted to describe the reinforced soil behavior from a macromechanics point of view. It is also taken into account the possibility of tension failure of the reinforcement and failure of the reinforcement interface. The stated nonlinear convex optimization problem is cast as second-order cone programming. Numerical examples illustrate the predictive accuracy of the above scheme as well as the efficiency and speed of an interior-point method to reach optimal solutions.
DOI: 10.6084/m9.figshare.5931373.v1
title: Static Limit Analysis of Reinforced Soil Structures by a Simple Finite Element and Second-Order Cone Programming

description: Abstract To discretize reinforced soil structures in plane strain and predict their collapse load, a simple three-node triangular finite element is formulated based on the static theorem of the limit analysis. The element satisfies the equilibrium equations and the mechanical boundary conditions in a weak sense. A modified Mohr-Coulomb yield surface is adopted to describe the reinforced soil behavior from a macromechanics point of view. It is also taken into account the possibility of tension failure of the reinforcement and failure of the reinforcement interface. The stated nonlinear convex optimization problem is cast as second-order cone programming. Numerical examples illustrate the predictive accuracy of the above scheme as well as the efficiency and speed of an interior-point method to reach optimal solutions.
DOI: 10.6084/m9.figshare.5931370
title: Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease

description: ABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carvacrol (25, 50 and 100 mg/kg, ip) for six weeks after surgery. The 6-OHDA-lesioned rats showed contralateral rotations towards the lesion side, which was accompanied by learning and memory deficits in a passive avoidance test and a decrease in tail withdrawal latency in a tail flick test at the end of week 6. The results also showed that treatment with carvacrol at a dose of 25 mg/kg ameliorated memory deficits, with no effect on rotations and hyperalgesia in lesioned rats. In conclusion, carvacrol improves memory impairments in rats with Parkinson's disease; therefore, it may serve as an adjunct therapy for the alleviation of memory deficits in Parkinson's disease patients.
DOI: 10.6084/m9.figshare.5931370.v1
title: Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease

description: ABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carvacrol (25, 50 and 100 mg/kg, ip) for six weeks after surgery. The 6-OHDA-lesioned rats showed contralateral rotations towards the lesion side, which was accompanied by learning and memory deficits in a passive avoidance test and a decrease in tail withdrawal latency in a tail flick test at the end of week 6. The results also showed that treatment with carvacrol at a dose of 25 mg/kg ameliorated memory deficits, with no effect on rotations and hyperalgesia in lesioned rats. In conclusion, carvacrol improves memory impairments in rats with Parkinson's disease; therefore, it may serve as an adjunct therapy for the alleviation of memory deficits in Parkinson's disease patients.
DOI: 10.6084/m9.figshare.5931361
title: Water Permeability Increase in Ultrafiltration Cellulose Acetate Membrane Containing Silver Nanoparticles

description: Inorganic nanoparticles incorporation in polymer membranes for filtration processes has attracted the attention of researchers in order to improve in some ways their performance. In this work, AgNPs were synthesized "in situ" in cellulose acetate (CA) membrane by chemical reduction of a silver salt. The membranes were prepared by the nonsolvent induced phase inversion method. Asymmetric membranes without (CA-M) and with adsorbed AgNPs (CA-Ag-M) were obtained. Ultrafiltration properties were confirmed for both membranes (16 nm of average pore diameter) and average crystallite size of 21 nm for the adsorbed AgNPs was computed. Contact angle measured with Milli-Q water and dry CA-Ag-M is near zero while for the CA-M is around 80°. The CA-M showed water permeability of 214 Lh-1m-2, while the CA-Ag-M permeability was 1651 Lh-1m-2.
DOI: 10.6084/m9.figshare.5931361.v1
title: Water Permeability Increase in Ultrafiltration Cellulose Acetate Membrane Containing Silver Nanoparticles

description: Inorganic nanoparticles incorporation in polymer membranes for filtration processes has attracted the attention of researchers in order to improve in some ways their performance. In this work, AgNPs were synthesized "in situ" in cellulose acetate (CA) membrane by chemical reduction of a silver salt. The membranes were prepared by the nonsolvent induced phase inversion method. Asymmetric membranes without (CA-M) and with adsorbed AgNPs (CA-Ag-M) were obtained. Ultrafiltration properties were confirmed for both membranes (16 nm of average pore diameter) and average crystallite size of 21 nm for the adsorbed AgNPs was computed. Contact angle measured with Milli-Q water and dry CA-Ag-M is near zero while for the CA-M is around 80°. The CA-M showed water permeability of 214 Lh-1m-2, while the CA-Ag-M permeability was 1651 Lh-1m-2.
DOI: 10.6084/m9.figshare.5931358
title: Soybean-corn succession according to seeding date

description: Abstract: The objective of this work was to evaluate the grain yield of soybean and corn cultivars cropped in succession, in different sowing dates. The experiment was carried out in the municipality of Dourados, in the state of Mato Grosso do Sul, Brazil, during three growing seasons, in the sowing dates: 9/15, 10/1, 10/15, and 11/1 for soybean; and 2/1, 2/15, 3/1, and 3/15 for corn. Although soybean yields are strongly affected by the crop season, sowing between late September and early October results in higher long-term yields. Planting corn in succession in mid-February provides the highest grain yield in the southern region of the state Mato Grosso do Sul; therefore, there is no need for an early soybean sowing in September, in order to ensure corn planting in January. Soybean-corn succession in which soybean is sown in early October and corn in mid-February results in higher total grain yields and reduces the climatic risk associated with these crops in the region.
DOI: 10.6084/m9.figshare.5931358.v1
title: Soybean-corn succession according to seeding date

description: Abstract: The objective of this work was to evaluate the grain yield of soybean and corn cultivars cropped in succession, in different sowing dates. The experiment was carried out in the municipality of Dourados, in the state of Mato Grosso do Sul, Brazil, during three growing seasons, in the sowing dates: 9/15, 10/1, 10/15, and 11/1 for soybean; and 2/1, 2/15, 3/1, and 3/15 for corn. Although soybean yields are strongly affected by the crop season, sowing between late September and early October results in higher long-term yields. Planting corn in succession in mid-February provides the highest grain yield in the southern region of the state Mato Grosso do Sul; therefore, there is no need for an early soybean sowing in September, in order to ensure corn planting in January. Soybean-corn succession in which soybean is sown in early October and corn in mid-February results in higher total grain yields and reduces the climatic risk associated with these crops in the region.