cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9900092.v1
title: Optimization of reinforced concrete beams using Solver tool

description: Abstract Due to the development in structural analysis studies, optimization techniques have become part in the design of reinforced concrete structures. Making it possible to design structures with optimized cross-sections. Thus, the present study aims to implement optimization techniques, using the Solver tool, to design procedure of reinforced concrete beams following the precepts of Brazilian Standard ABNT NBR 6118:2014. Focusing to minimize the cost of reinforced concrete beams, where the design variables are the height and width of the beam cross-section and the constraints are imposed by the relevant technical standards and design variables limitations.
DOI: 10.6084/m9.figshare.9900086
title: Physico-chemical characterization and antioxidant capacity of the colombian berry (Vaccinium meridionale Swartz) with a high-polyphenol content: potential effects in people with metabolic syndrome

description: Abstract Colombian berry (agraz) has demonstrated a high antioxidant content in vitro. In the present study, it was elaborated and characterized an agraz nectar, designed a placebo with similar physicochemical and sensorial characteristics of the agraz nectar, but without polyphenols; and evaluated their antioxidant capacity both in vitro and in vivo in adults with cardiovascular risk factors. The polyphenolic concentration of the agraz nectar and its antioxidant capacity was superior than other reported for this fruit. A high content of total cyanidins was observed in the freeze-dried agraz, but not delphinin was detected by HPLC. For the intervention study, sixty-six subjects, with at least three cardiometabolic risk factors, consumed agraz nectar or placebo daily during 4 weeks each, separated by a 4-week washout period. Total phenol concentration and antioxidant capacity in the participants’ serum were not statistically different after consuming agraz nectar and placebo. However, women increased significantly their serum DPPH scavenging capacity after consuming agraz nectar, compared to placebo. This is one of the first studies showing data about the effects of this colombian berry on the antioxidant capacity in people with metabolic syndrome.
DOI: 10.6084/m9.figshare.9900074
title: SECOND GENERATION ETHANOL IN BRAZIL: POLICIES AND SOCIO-TECHNICAL NETWORKS

description: This article analyses the national policies and initiatives related to the production, research and development of the second generation ethanol (E2G) in Brazil. Using actor-network theory as the theoretical and methodological referential, we sought to identity, from a bibliographical and documentary survey, which are the policies interwoven with E2G, the main actors that form this network, its alliances, the related technologies and the main issues involved in this process. By mapping this network and tracking its controversies, we try to demonstrate how E2G is still a black box open to human and non-human actor associations, policies and (in)definitions. Finally, we point out the implications of this artefact with its related policies, seeking to contribute to the current debate on energy policy and Brazilian science and technology.
DOI: 10.6084/m9.figshare.9900077
title: Interaction dam-reservoir: study of conservative and dissipative effects

description: Abstract In this paper, the Laplace’s equation is solved analytically in the complex plane for the field of hydrodynamic pressures generated by the rigid body movement of a dam against a reservoir with infinite domain and incompressible fluid. The force the reservoir fluid exerts on the face of the dam is determined through the integration of the hydrodynamic pressure in the complex plane. The conservative effects (real part) and dissipative effects (imaginary part) of the force are analyzed as a function of the Froude number. The asymptotic solution of the aforementioned effects are also presented in this paper.
DOI: 10.6084/m9.figshare.9900080
title: Obstructive sleep apnea and Parkinson's disease: characteristics and associated factors

description: ABSTRACT Obstructive sleep apnea (OSA) occurs in up to 66% of Parkinson's disease (PD) patients, higher than in the general population. Although it is more prevalent, the relationship between OSA and PD remains controversial, with some studies confirming and others denying the relationship of OSA with some risk factors and symptoms in patients with PD. Objective: To determine the factors associated with OSA in PD patients com DP. Methods: A cross-sectional study was performed with 88 consecutive patients with PD from the outpatient clinic. Participants underwent clinical interviews with neurologists and a psychiatrist, assessment using standardized scales (Epworth Sleepiness Scale, Parkinson's Disease Questionnaire, Pittsburgh Sleep Quality Index and, for individuals with a diagnosis of restless legs syndrome/Willis-Ekbom disease, the International Restless Legs Syndrome Rating Scale), and video-polysomnography. Results: Individuals with PD and OSA were older and had less insomnia than those with PD without OSA. Regarding the polysomnographic variables, we observed a lower percentage of stage N3 sleep, a higher arousal index, and a higher oxygen desaturation index in those individuals with OSA, relative to those without OSA. In the multivariate analysis, only the percentage of stage N3 sleep and the oxygen desaturation index were significantly different. Besides this, most of the PD patients with OSA had a correlation with sleeping in the supine position (58% of OSA individuals). Conclusion: The PD patients showed a high prevalence of OSA, with the supine position exerting a significant influence on the OSA in these patients, and some factors that are associated with OSA in the general population did not seem to have a greater impact on PD patients.
DOI: 10.6084/m9.figshare.9900077.v1
title: Interaction dam-reservoir: study of conservative and dissipative effects

description: Abstract In this paper, the Laplace’s equation is solved analytically in the complex plane for the field of hydrodynamic pressures generated by the rigid body movement of a dam against a reservoir with infinite domain and incompressible fluid. The force the reservoir fluid exerts on the face of the dam is determined through the integration of the hydrodynamic pressure in the complex plane. The conservative effects (real part) and dissipative effects (imaginary part) of the force are analyzed as a function of the Froude number. The asymptotic solution of the aforementioned effects are also presented in this paper.
DOI: 10.6084/m9.figshare.9900086.v1
title: Physico-chemical characterization and antioxidant capacity of the colombian berry (Vaccinium meridionale Swartz) with a high-polyphenol content: potential effects in people with metabolic syndrome

description: Abstract Colombian berry (agraz) has demonstrated a high antioxidant content in vitro. In the present study, it was elaborated and characterized an agraz nectar, designed a placebo with similar physicochemical and sensorial characteristics of the agraz nectar, but without polyphenols; and evaluated their antioxidant capacity both in vitro and in vivo in adults with cardiovascular risk factors. The polyphenolic concentration of the agraz nectar and its antioxidant capacity was superior than other reported for this fruit. A high content of total cyanidins was observed in the freeze-dried agraz, but not delphinin was detected by HPLC. For the intervention study, sixty-six subjects, with at least three cardiometabolic risk factors, consumed agraz nectar or placebo daily during 4 weeks each, separated by a 4-week washout period. Total phenol concentration and antioxidant capacity in the participants’ serum were not statistically different after consuming agraz nectar and placebo. However, women increased significantly their serum DPPH scavenging capacity after consuming agraz nectar, compared to placebo. This is one of the first studies showing data about the effects of this colombian berry on the antioxidant capacity in people with metabolic syndrome.
DOI: 10.6084/m9.figshare.9900080.v1
title: Obstructive sleep apnea and Parkinson's disease: characteristics and associated factors

description: ABSTRACT Obstructive sleep apnea (OSA) occurs in up to 66% of Parkinson's disease (PD) patients, higher than in the general population. Although it is more prevalent, the relationship between OSA and PD remains controversial, with some studies confirming and others denying the relationship of OSA with some risk factors and symptoms in patients with PD. Objective: To determine the factors associated with OSA in PD patients com DP. Methods: A cross-sectional study was performed with 88 consecutive patients with PD from the outpatient clinic. Participants underwent clinical interviews with neurologists and a psychiatrist, assessment using standardized scales (Epworth Sleepiness Scale, Parkinson's Disease Questionnaire, Pittsburgh Sleep Quality Index and, for individuals with a diagnosis of restless legs syndrome/Willis-Ekbom disease, the International Restless Legs Syndrome Rating Scale), and video-polysomnography. Results: Individuals with PD and OSA were older and had less insomnia than those with PD without OSA. Regarding the polysomnographic variables, we observed a lower percentage of stage N3 sleep, a higher arousal index, and a higher oxygen desaturation index in those individuals with OSA, relative to those without OSA. In the multivariate analysis, only the percentage of stage N3 sleep and the oxygen desaturation index were significantly different. Besides this, most of the PD patients with OSA had a correlation with sleeping in the supine position (58% of OSA individuals). Conclusion: The PD patients showed a high prevalence of OSA, with the supine position exerting a significant influence on the OSA in these patients, and some factors that are associated with OSA in the general population did not seem to have a greater impact on PD patients.
DOI: 10.6084/m9.figshare.9900065
title: Agronomic biofortification of common bean grain with zinc

description: Abstract: The objective of this work was to evaluate the effects of the split and combinated application of foliar zinc (ZnF) + soil Zn (ZnS) on Zn concentration in the grains (ZnCG) of common bean (Phaseolus vulgaris). Two experiments were carried out in a greenhouse during two seasons. In the first experiment, two common bean cultivars received six ZnF rates (0, 120, 240, 480, 720, or 1,200 g ha-1), with split applications at the R5, R7, and R8, or R7 and R8, or R8 plant stages. In the second experiment, one cultivar received three ZnS rates (0, 5, or 10 kg ha-1) combined with ZnF rates (0, 1, 1.5, 3, 6, or 10 kg ha-1). In the first experiment, with the ZnF increment, ZnCG increased linearly from 15.3 to 20.7 mg kg-1. ZnF splitting did not affect ZnCG. In the second experiment, ZnF without ZnS did not affect ZnCG. ZnS doubled ZnCG in comparison with the treatment without ZnS application. At 5 kg ha-1 ZnS, the highest ZnCG (67.5 mg kg-1) was obtained with 7.8 kg ha-1 ZnF. At 10 kg ha-1, the highest ZnCG (66 mg kg-1) was obtained with 4.9 kg ha-1 ZnF. ZnF splitting is not advantageous over a single application, and the combination of ZnF and ZnS increases ZnCG in common bean, in greenhouse conditions.
DOI: 10.6084/m9.figshare.9900062
title: THE SENSES OF PAARTICIPATION IN THE WORKERS PARTY (1980-2016)

description: At the 1982 election, the Workers’ Party (PT – Partido dos Trabalhadores) released the motto: “to govern with popular participation and inversion of priorities”. These ideas would accompany the party throughout its history, although with substantial changes in the way they were perceived by its militants and leaders. These changes were made explicit by the priorities given to different public policy instruments, ranging from the proposal to govern by Popular Councils in the 1980s to the constitution of a National System of Participation in the federal government in 2014. We argue that there is a relational dynamic, in which the adoption of different public policy instruments for the implementation of the participation guidelines simultaneously shapes and reflects party ideological preferences. Based on the experimentalism of its municipal, state, and federal administrations, successful experiences were incorporated into the party program as examples to be followed by other PT governments. From the systematic analysis of party resolutions and publications, we present how the meanings attributed to the term participation and its various adjectives gradually change, together with the choice of priority instruments for the implementation of participatory policies.
DOI: 10.6084/m9.figshare.9900053
title: Preparation and Luminescence Properties of Europium(III) Ternary Complex-modified Poplar Wood-based Materials

description: Inspired by the ultraviolet induced properties of biological materials, we developed fluorescent wood as a new type of functional material which can be applied to anti-counterfeit label technology and wood-emitting artwork. This study discusses the influence of temperature, time, ligand ratio, and reactant concentration on the structure and properties of fluorescent wood with europium(III) ternary complexes. The surface morphology and fluorescent properties of the modified wood were characterized by scanning electron microscopy (SEM) and fluorescence spectrometry. The results showed that a high reaction temperature of 75 ºC was beneficial in obtaining stronger fluorescent wood; a reaction time of 8 h exerted a significant influence on fluorescent wood when the reactant concentration of the sample was 0.03 mol/L. In addition, the results of infrared spectroscopy, X-ray photoelectron spectroscopy, and energy-dispersive X-ray analysis showed that modification of wood takes place through the Si-OH groups of the silane coupling agent, which link to the surface of wood. After 120 hours of UV light irradiation, the surface fluorescence intensity of the modified wood can reach 500 arb. units. It can be considered that the modified wood has better anti-ultraviolet aging properties, thereby prolonging the life of poplar.
DOI: 10.6084/m9.figshare.9900056
title: Effect of convective and microwave methods on drying characteristics, color, rehydration and microstructure properties of ginger

description: Abstract In this research, the effects of convective drying method (60, 70 and 80 °C) and microwave drying method (160 and 350 W) on the drying characteristics, color, rehydration and microstructure properties of ginger has been examined. For the purpose of choosing the most appropriate thin-layer drying models in terms of the drying applications, nine mathematical models have been applied on the experimental data. Pursuant to the assessment of the statistical tests, models of Diffusion Approach, Midilli et al. and Page that represent drying characteristics are found to be better than other models. Drying applications have affected the color values of all fresh ginger samples. Results indicated that browning degree increases as drying temperature and microwave power rise. The samples dried at 60 °C has the maximum rehydration ratio while the samples dried at 80 °C has the minimum rehydration ratio. Scanning electron microscopy visuals have ascertained that the deterioration of the ginger samples remarkably surged due to the rise in either drying temperature or microwave power. Applying the convective and microwave techniques as an alternative drying method for ginger samples is possible.
DOI: 10.6084/m9.figshare.9900062.v1
title: THE SENSES OF PAARTICIPATION IN THE WORKERS PARTY (1980-2016)

description: At the 1982 election, the Workers’ Party (PT – Partido dos Trabalhadores) released the motto: “to govern with popular participation and inversion of priorities”. These ideas would accompany the party throughout its history, although with substantial changes in the way they were perceived by its militants and leaders. These changes were made explicit by the priorities given to different public policy instruments, ranging from the proposal to govern by Popular Councils in the 1980s to the constitution of a National System of Participation in the federal government in 2014. We argue that there is a relational dynamic, in which the adoption of different public policy instruments for the implementation of the participation guidelines simultaneously shapes and reflects party ideological preferences. Based on the experimentalism of its municipal, state, and federal administrations, successful experiences were incorporated into the party program as examples to be followed by other PT governments. From the systematic analysis of party resolutions and publications, we present how the meanings attributed to the term participation and its various adjectives gradually change, together with the choice of priority instruments for the implementation of participatory policies.
DOI: 10.6084/m9.figshare.9900065.v1
title: Agronomic biofortification of common bean grain with zinc

description: Abstract: The objective of this work was to evaluate the effects of the split and combinated application of foliar zinc (ZnF) + soil Zn (ZnS) on Zn concentration in the grains (ZnCG) of common bean (Phaseolus vulgaris). Two experiments were carried out in a greenhouse during two seasons. In the first experiment, two common bean cultivars received six ZnF rates (0, 120, 240, 480, 720, or 1,200 g ha-1), with split applications at the R5, R7, and R8, or R7 and R8, or R8 plant stages. In the second experiment, one cultivar received three ZnS rates (0, 5, or 10 kg ha-1) combined with ZnF rates (0, 1, 1.5, 3, 6, or 10 kg ha-1). In the first experiment, with the ZnF increment, ZnCG increased linearly from 15.3 to 20.7 mg kg-1. ZnF splitting did not affect ZnCG. In the second experiment, ZnF without ZnS did not affect ZnCG. ZnS doubled ZnCG in comparison with the treatment without ZnS application. At 5 kg ha-1 ZnS, the highest ZnCG (67.5 mg kg-1) was obtained with 7.8 kg ha-1 ZnF. At 10 kg ha-1, the highest ZnCG (66 mg kg-1) was obtained with 4.9 kg ha-1 ZnF. ZnF splitting is not advantageous over a single application, and the combination of ZnF and ZnS increases ZnCG in common bean, in greenhouse conditions.
DOI: 10.6084/m9.figshare.9900053.v1
title: Preparation and Luminescence Properties of Europium(III) Ternary Complex-modified Poplar Wood-based Materials

description: Inspired by the ultraviolet induced properties of biological materials, we developed fluorescent wood as a new type of functional material which can be applied to anti-counterfeit label technology and wood-emitting artwork. This study discusses the influence of temperature, time, ligand ratio, and reactant concentration on the structure and properties of fluorescent wood with europium(III) ternary complexes. The surface morphology and fluorescent properties of the modified wood were characterized by scanning electron microscopy (SEM) and fluorescence spectrometry. The results showed that a high reaction temperature of 75 ºC was beneficial in obtaining stronger fluorescent wood; a reaction time of 8 h exerted a significant influence on fluorescent wood when the reactant concentration of the sample was 0.03 mol/L. In addition, the results of infrared spectroscopy, X-ray photoelectron spectroscopy, and energy-dispersive X-ray analysis showed that modification of wood takes place through the Si-OH groups of the silane coupling agent, which link to the surface of wood. After 120 hours of UV light irradiation, the surface fluorescence intensity of the modified wood can reach 500 arb. units. It can be considered that the modified wood has better anti-ultraviolet aging properties, thereby prolonging the life of poplar.
DOI: 10.6084/m9.figshare.9900056.v1
title: Effect of convective and microwave methods on drying characteristics, color, rehydration and microstructure properties of ginger

description: Abstract In this research, the effects of convective drying method (60, 70 and 80 °C) and microwave drying method (160 and 350 W) on the drying characteristics, color, rehydration and microstructure properties of ginger has been examined. For the purpose of choosing the most appropriate thin-layer drying models in terms of the drying applications, nine mathematical models have been applied on the experimental data. Pursuant to the assessment of the statistical tests, models of Diffusion Approach, Midilli et al. and Page that represent drying characteristics are found to be better than other models. Drying applications have affected the color values of all fresh ginger samples. Results indicated that browning degree increases as drying temperature and microwave power rise. The samples dried at 60 °C has the maximum rehydration ratio while the samples dried at 80 °C has the minimum rehydration ratio. Scanning electron microscopy visuals have ascertained that the deterioration of the ginger samples remarkably surged due to the rise in either drying temperature or microwave power. Applying the convective and microwave techniques as an alternative drying method for ginger samples is possible.
DOI: 10.6084/m9.figshare.9900041
title: Evaluation of the Acid Baking Technique to Decrease the Phosphorus Content of the Iron Ore

description: Unlike the available mineral resources, the steelmaking processes have demanded raw material with lower phosphorus content to decrease the costs, energy use, and the residue generated within the steel plant. One alternative is to develop pretreatment of the iron ore concentrates producing raw materials with lower phosphorus. Depending on the mineral structure, a heat treatment combined with leaching could be an efficient way to achieve concentrates with low phosphorus (less than 0.01%), suitable for steelmaking processes. A fast and efficient way of applying energy to iron ore particles is the use of microwave to heat the particles. Thus, we propose a treatment using microwave heating while mixing with a dilute aqueous solution of sulfuric acid, followed by quenching during leaching with water, as a feasible route for the phosphorus removal from iron ore particles. We performed a design of experiment (DOE) to investigate the optimal conditions of heating and leaching, which maximize the rate of phosphorus removal. The structure of the iron ore particles after their treatment with microwave energy was observed by scanning electron microscopy (SEM). Thus, we analyze the optimal conditions for heating and leaching, the structure of the iron ore particles and which mechanism and rate equations are controlling the phosphorus removal. The results indicated that the average heating time is 10 min, the size of the crack of the order of 20µm and a leaching time of 8 min are adequate to achieve less than 0.01% of phosphorus. We demonstrated that under the most favorable combination of conditions for heating followed by leaching proposed in this study, the removal of the phosphorus content in the iron ore samples could reach 100%.