cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9957239.v1
title: ASSESSING PSYCHOSOCIAL DISTRESS IN BONE METASTASES TREATED WITH ENDOPROSTHESIS

description: ABSTRACT Objective: To compare preoperative and early postoperative levels of psychosocial distress in patients undergoing bone metastasis treatment with endoprosthesis, evaluating its impact on quality of life. Methods: Thirteen patients undergoing endoprosthetic treatment of bone metastasis were assessed at two time points: preoperatively and 30 days postoperatively. The tool used was the Distress Thermometer, a questionnaire for psychosocial screening developed by the National Comprehensive Cancer Network. Distress is considered moderate or severe if the patient scores 4 or higher. Results: The most frequent problems in the preoperative period were “bathing and dressing”. At 30 days, “fatigue” and “nervousness” prevailed. There was a significant improvement in distress when preoperative and 30-day assessments were compared. Conclusion: The surgical treatment of bone metastasis with endoprosthesis results in an early improvement of psychosocial distress as measured by the Distress Thermometer. Level of evidence II, Prospective and comparative therapeutic study.
DOI: 10.6084/m9.figshare.9957224
title: The Social Technology Network: analysis of the articulation in light of the social management concept

description: Abstract The so-called Social Technology Network was a network articulation that gathered more than 900 organizations (as NGO´s, Associations, and Cooperatives) that proposed to organize, articulate and integrate themselves with the purpose of promoting sustainable development through the diffusion and scale reapplication of social technologies. In light of the Social Management theoretical approach, the objective of this study was to analyze this complex articulation that lasted from 2005 to 2011. A historical survey was carried out and the analytical categories of territoriality and interorganization were adopted to understand the articulation. This exploratory, descriptive, qualitative-interpretative study mobilizes different data collection techniques and primary and secondary sources. As a result, we identified that more than R$ 430 million were invested in projects for the reapplication of 19 social technologies and R$ 8 million were invested in diffusing the theme and social technologies in general. In the process of interorganization, we verified the consolidation of two instances: the first one is the Coordinating Committee as a deliberative body, and the second one, the National Forums as a propositional channel for another 900 institutions. In spite of the enormous plurality, we concluded that the Social Technology Network was a movement that worked essentially according to the strategic objectives of the supporting institutions that were part of the coordinating committee. Regarding the process of valorization of territorial aspects, despite defining macro-regional areas of action, it was not possible to verify that it acted effectively in a context of local valorization and development.
DOI: 10.6084/m9.figshare.9957227.v1
title: EFFECTS OF A PSYCHOLOGICAL SKILL TRAINING PROGRAM ON ANXIETY LEVELS IN TOP KARATE ATHLETES

description: ABSTRACT Introduction To achieve an improvement in self-regulation, and consequently competitive performance, it is necessary to evaluate psychological skills training programs. It was hypothesized that the introduction of autogenic training and guided imagery could bring about positive changes in anxiety and self-confidence, as compared to regular training and competitive activities. Objective To investigate the effects of a psychological skills training program on the optimization of anxiety and self-confidence. Methods Twenty-four athletes from the Serbian national karate team were divided into experimental (EXP) and control (CON) groups. During eight weeks, both groups underwent an identical karate training and competing program. The program was adapted for top karate athletes according to their daily routines and the specific demands of the activity. In addition, the EXP group underwent the psychological skills training program, based on autogenic training and guided imagery. The Competitive State Anxiety Inventory-2 was used to measure the multidimensional construct of the state of anxiety, and the Movement Imagery Questionnaire-3 to assess individual ability to imagine movements. Results Repeated measures ANOVA results indicated a difference in anxiety levels between the EXP and CON groups after the intervention. Further analysis indicated a decrease in cognitive anxiety and an increase in self-confidence among participants from the EXP group. Conclusion The applied psychological skills program had a positive effect on anxiety optimization and self-confidence levels in top karate athletes. As emotional self-regulation is also crucial for athletes of other sports, the implementation of this intervention can be recommended, provided that it is adapted to the specific characteristics of each sport. Level of evidence II; Therapeutic studies – Investigating treatments results.
DOI: 10.6084/m9.figshare.9957218
title: Carbonyl compounds in wine: factors related to presence and toxic effects

description: ABSTRACT: The objective of this study was to review technological and toxicological factors related to presence of carbonyl compounds found in wines, including acetaldehyde, formaldehyde, acrolein, ethyl carbamate (EC) and furfural. Acetaldehyde and formaldehyde may be formed through the ethanol and methanol oxidation, respectively. Acrolein may arise as a thermal degradation product of glycerol, amino acids, carbohydrates and triglycerides or by metabolic activity of microorganisms. In addition, acrolein and furfural are formed during wood combustion; therefore, these aldehydes may be present in raw materials due to the environmental contamination. Furfural is also a product of the Maillard reaction formed from sugars and amino acids, while ethyl carbamate occurs through the reaction between urea and ethanol. These compounds may react with SO2 and phenolic compounds to form non-volatile adducts, which positively modulates color stability, astringency and aroma in wine. However, when ingested through wine, electrophilic carbonyl compounds may form adducts with nucleophilic targets, such as DNA, resulting in genotoxicity along the gastrointestinal tract. Furthermore, carbonyl compounds induce the increase of reactive oxygen species and can trigger apoptosis, in addition to hepatocellular adenoma and carcinoma as a consequence of chronic hepatotoxicity. Neurodegenerative diseases may be related to the exposure to carbonyl compounds. Therefore, strategies to reduce the levels of these compounds should be studied in order to get the most out of the beneficial functional properties of wine consumption.
DOI: 10.6084/m9.figshare.9957221
title: THE RELATIONSHIP BETWEEN R&D EXPENSES AND THE ABNORMAL RETURN IN BRAZILIAN FIRMS

description: ABSTRACT Purpose: This study aims to analyze the relationship between the abnormal return and R&D expenses in Brazilian public firms. Originality/value: The determinants of firms' abnormal return provide information relevant to investors' decision-making. In this context, we verified whether the innovation, measured by R&D expenses, could be a key factor for the abnormal returns in Brazilian firms. Design/methodology/approach: We analyzed Brazilian public firms, from 2009 to 2016, by panel data regressions, in a sample composed by 1,597 firm-year observations. We collected information about R&D expenses in the footnotes. When a firm only mentioned about R&D expenses but did not disclose spent value in the Income Statement, we consider that the firm did not invest in the period and we attribute zero as a value. We highlighted that few firms mentioned R&D expenses in their footnotes and/or declared that they invested in R&D, only 44 firms in all sample, pointing the importance of better disclosure practices of these investments. Findings: The results demonstrate a negative and statistically significant relationship between innovation and the abnormal return. That is, current R&D expenses lead to a lower current abnormal return. It could be linked with the fact that R&D expenses tend to produce returns just in longer periods, demanding more time to recover these investments, due to their complex characteristics related to accounting measurement of R&D expenses. Consequently, an abnormal return could be perceived only in subsequent periods.
DOI: 10.6084/m9.figshare.9957224.v1
title: The Social Technology Network: analysis of the articulation in light of the social management concept

description: Abstract The so-called Social Technology Network was a network articulation that gathered more than 900 organizations (as NGO´s, Associations, and Cooperatives) that proposed to organize, articulate and integrate themselves with the purpose of promoting sustainable development through the diffusion and scale reapplication of social technologies. In light of the Social Management theoretical approach, the objective of this study was to analyze this complex articulation that lasted from 2005 to 2011. A historical survey was carried out and the analytical categories of territoriality and interorganization were adopted to understand the articulation. This exploratory, descriptive, qualitative-interpretative study mobilizes different data collection techniques and primary and secondary sources. As a result, we identified that more than R$ 430 million were invested in projects for the reapplication of 19 social technologies and R$ 8 million were invested in diffusing the theme and social technologies in general. In the process of interorganization, we verified the consolidation of two instances: the first one is the Coordinating Committee as a deliberative body, and the second one, the National Forums as a propositional channel for another 900 institutions. In spite of the enormous plurality, we concluded that the Social Technology Network was a movement that worked essentially according to the strategic objectives of the supporting institutions that were part of the coordinating committee. Regarding the process of valorization of territorial aspects, despite defining macro-regional areas of action, it was not possible to verify that it acted effectively in a context of local valorization and development.
DOI: 10.6084/m9.figshare.9957230.v1
title: Urban Morphology maximisation of Urban PV power generation capacity in the São Paulo neighbourhood of Belenzinho

description: Abstract This study analyses the parameters of urban morphology that condition the PV power generation capacity in a the São Paulo neighbourhood of Belenzinho. Initially, using 3D Rhinoceros® software with Grasshopper® and Diva® plug-ings was modelled based on the isolated variation of the urban parameters to identify the best and worse scores, considering the solar radiation incidence on the rooftops of individual buildings. Thereafter, the Galapagos genetic algorithm was applied with the purpose of combining the urban parameters, identifying the most adequate values for a better use of solar radiation. The analysis carried out showed that intermediate values for plot area ratio and land coverage equal to 0.70 are more suitable for better power generation performance in the neighbourhood unit, while the maximum values allowed by legislation are more in the buildings unit. Thus, the definition of a municipal energy policy for photovoltaic application on the roof of buildings involves an analysis of concentrated or distributed generation solutions in the urban territory, and its appropriation by the land use regulation.
DOI: 10.6084/m9.figshare.9957209
title: Methylene blue adsorption in Pinus elliottii (pine) and Drepanostachyum falcatum (bamboo) sawdust

description: ABSTRACT Kinetics, equilibrium and thermodynamic adsorption parameters were investigated for the adsorption of the methylene blue dye (MB) by means of the biosorbents Pinus elliottii (pinus) and Drepanostachyum falcatum (bamboo). The adsorption kinetics were described more precisely by the pseudo-second order model; the monocomponent equilibrium’s data were better represented by the Langmuir isotherm for the three temperatures studied (15, 25 and 35°C) and the thermodynamic parameters showed the adsorption process is exothermic, of a chemical nature and not spontaneous. The maximum adsorptive capacity of pinus was 47 mg L-1 and 38 mg L-1 bamboo for adsorption tests performed with MB (100 mg L-1 at 35°C). Finally, the biosorbents were considered promising for the adsorbate MB removal in aqueous matrix under pH value close to neutrality (6.5).
DOI: 10.6084/m9.figshare.9957218.v1
title: Carbonyl compounds in wine: factors related to presence and toxic effects

description: ABSTRACT: The objective of this study was to review technological and toxicological factors related to presence of carbonyl compounds found in wines, including acetaldehyde, formaldehyde, acrolein, ethyl carbamate (EC) and furfural. Acetaldehyde and formaldehyde may be formed through the ethanol and methanol oxidation, respectively. Acrolein may arise as a thermal degradation product of glycerol, amino acids, carbohydrates and triglycerides or by metabolic activity of microorganisms. In addition, acrolein and furfural are formed during wood combustion; therefore, these aldehydes may be present in raw materials due to the environmental contamination. Furfural is also a product of the Maillard reaction formed from sugars and amino acids, while ethyl carbamate occurs through the reaction between urea and ethanol. These compounds may react with SO2 and phenolic compounds to form non-volatile adducts, which positively modulates color stability, astringency and aroma in wine. However, when ingested through wine, electrophilic carbonyl compounds may form adducts with nucleophilic targets, such as DNA, resulting in genotoxicity along the gastrointestinal tract. Furthermore, carbonyl compounds induce the increase of reactive oxygen species and can trigger apoptosis, in addition to hepatocellular adenoma and carcinoma as a consequence of chronic hepatotoxicity. Neurodegenerative diseases may be related to the exposure to carbonyl compounds. Therefore, strategies to reduce the levels of these compounds should be studied in order to get the most out of the beneficial functional properties of wine consumption.
DOI: 10.6084/m9.figshare.9957206
title: Prediction of pressure drop through packed beds of granular materials: influence of moisture reduction and air velocity

description: Abstract The influence of the moisture content of the solids on the pressure drop through packed beds of soy, barley, lentils and oats was investigated. The properties of the grains and the packed beds were determined varying the moisture contents of the solids between the equilibrium moisture content and 0.24 g g-1 (mass of water per mass of dry solid). The pressure drops were measured as a function of the aeration velocity under different moisture contents of the solids. It was observed that a reduction in the moisture content caused a decrease in the particle dimensions but did not affect their shape. Due to the reduction in size caused by the moisture removal, the packed beds become denser and less permeable to the airflow, resulting in an increase in the pressure drop. In the moisture range investigated, the pressure drops increased by more than 39% for lentils, soy and barley, and by about 24% for oats, indicating that the energy consumption during aeration could rise significantly. The parameters of the Forchheimer’s equation were modified to take into account the influence of the moisture content of the solids on the pressure drops. For each particle, empirical equations were proposed and shown to be adequate to accurately predict the pressure drop of the packed beds as a function of the moisture content and aeration velocity.
DOI: 10.6084/m9.figshare.9957203
title: Evaluation of wastewater treatment plant with anaerobic reactor receiving sludge from water treatment plant Actiflo ®

description: ABSTRACT The objective of this paper was to analyze the disposal of decanter’s sludge from a WTP with microsand ballasted sedimentation (Actiflo®) in a WWTP containing UASB reactors and polishing pond, in Ponta Grossa - PR. The WWTP Verde operated in stable condition, with an average flow tributary of 213.14 L.s-1. The UASBs operated with HRT in 9.9 hours, VHL in 2.4 m3.m-3.d-1 and OLR ranging from 0.75 to 1.66 kgCOD.m-3.d-1. The polishing pond operated with HRT in 4.5 days and OLR ranging from 765 to 2872 kgCOD.ha-1.d-1, which corresponds from 19 to 72 gCOD.m-3.d-1. The efficiency of COD and TSS removal was maintained even with the release of WTP sludge. WWTP’s efficiency ranged between 80% and 86% for COD removal and between 92% and 96% for TSS. It was concluded that the release in the sewage collection network is a viable alternative to disposal of the decanter’s sludge from WTP Actiflo®.
DOI: 10.6084/m9.figshare.9957206.v1
title: Prediction of pressure drop through packed beds of granular materials: influence of moisture reduction and air velocity

description: Abstract The influence of the moisture content of the solids on the pressure drop through packed beds of soy, barley, lentils and oats was investigated. The properties of the grains and the packed beds were determined varying the moisture contents of the solids between the equilibrium moisture content and 0.24 g g-1 (mass of water per mass of dry solid). The pressure drops were measured as a function of the aeration velocity under different moisture contents of the solids. It was observed that a reduction in the moisture content caused a decrease in the particle dimensions but did not affect their shape. Due to the reduction in size caused by the moisture removal, the packed beds become denser and less permeable to the airflow, resulting in an increase in the pressure drop. In the moisture range investigated, the pressure drops increased by more than 39% for lentils, soy and barley, and by about 24% for oats, indicating that the energy consumption during aeration could rise significantly. The parameters of the Forchheimer’s equation were modified to take into account the influence of the moisture content of the solids on the pressure drops. For each particle, empirical equations were proposed and shown to be adequate to accurately predict the pressure drop of the packed beds as a function of the moisture content and aeration velocity.
DOI: 10.6084/m9.figshare.9957221.v1
title: THE RELATIONSHIP BETWEEN R&D EXPENSES AND THE ABNORMAL RETURN IN BRAZILIAN FIRMS

description: ABSTRACT Purpose: This study aims to analyze the relationship between the abnormal return and R&D expenses in Brazilian public firms. Originality/value: The determinants of firms' abnormal return provide information relevant to investors' decision-making. In this context, we verified whether the innovation, measured by R&D expenses, could be a key factor for the abnormal returns in Brazilian firms. Design/methodology/approach: We analyzed Brazilian public firms, from 2009 to 2016, by panel data regressions, in a sample composed by 1,597 firm-year observations. We collected information about R&D expenses in the footnotes. When a firm only mentioned about R&D expenses but did not disclose spent value in the Income Statement, we consider that the firm did not invest in the period and we attribute zero as a value. We highlighted that few firms mentioned R&D expenses in their footnotes and/or declared that they invested in R&D, only 44 firms in all sample, pointing the importance of better disclosure practices of these investments. Findings: The results demonstrate a negative and statistically significant relationship between innovation and the abnormal return. That is, current R&D expenses lead to a lower current abnormal return. It could be linked with the fact that R&D expenses tend to produce returns just in longer periods, demanding more time to recover these investments, due to their complex characteristics related to accounting measurement of R&D expenses. Consequently, an abnormal return could be perceived only in subsequent periods.
DOI: 10.6084/m9.figshare.9957200
title: Model improvement for estimating of water turbidity removal efficiency in helical tubular flocculators

description: ABSTRACT Scientific studies have been demonstrating that helical tubular flocculators (HTFs) have high efficiency in floc formation and low hydraulic retention time when compared to flocculators commonly used in water and wastewater treatment. However, its practical application is still limited because there is still a significant demand for advances in the understanding of the relationship between the hydrodynamics of the unit and the flocculation process, as well as for criteria and methodologies in support to the rational design of HTF. In this context, the objective of this study was to propose an improvement in the model of turbidity removal efficiency developed by Oliveira (2014), which takes into account a set of geometric, hydraulic and hydrodynamic parameters relevant to the flocculation process in this type of reactor, by incorporating one of the most representative parameters of flocculation processes, the normal pressure gradient, as one of its independent variables. The development of the work employs computational fluid dynamics (CFD) in the study of 84 HTFs configurations, considering laminar and turbulent flow regimes. As a result, a new model version for estimating water turbidity removal’s efficiency in helical tubular flocculators was obtained, which, in relation to the original version, has a smaller number of independent variables, presents better fit to the experimental data and is simpler from the operational point of view.
DOI: 10.6084/m9.figshare.9957203.v1
title: Evaluation of wastewater treatment plant with anaerobic reactor receiving sludge from water treatment plant Actiflo ®

description: ABSTRACT The objective of this paper was to analyze the disposal of decanter’s sludge from a WTP with microsand ballasted sedimentation (Actiflo®) in a WWTP containing UASB reactors and polishing pond, in Ponta Grossa - PR. The WWTP Verde operated in stable condition, with an average flow tributary of 213.14 L.s-1. The UASBs operated with HRT in 9.9 hours, VHL in 2.4 m3.m-3.d-1 and OLR ranging from 0.75 to 1.66 kgCOD.m-3.d-1. The polishing pond operated with HRT in 4.5 days and OLR ranging from 765 to 2872 kgCOD.ha-1.d-1, which corresponds from 19 to 72 gCOD.m-3.d-1. The efficiency of COD and TSS removal was maintained even with the release of WTP sludge. WWTP’s efficiency ranged between 80% and 86% for COD removal and between 92% and 96% for TSS. It was concluded that the release in the sewage collection network is a viable alternative to disposal of the decanter’s sludge from WTP Actiflo®.
DOI: 10.6084/m9.figshare.9957197
title: Nitrification of yellow waters in bed percolating of sand

description: ABSTRACT Ecological sanitation awares about the importance of a more efficient water reuse and the use of decentralized wastewater treatment systems. This paper describes the results of yellow waters’ nitrification in a biological reactor made up of simple materials, like sand as support material, aiming to make this liquid waste available for the use of mineralized nitrogen in sustainable agriculture. The experimental system was monitored through pH, dissolved oxygen (DO), total alkalinity (ALK), chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN), ammonia nitrogen (AN), nitrite (NO- 2) and nitrate (NO- 3). The system showed good removal of organic matter and excellent conversion of nitrogen to nitrite and nitrate, with efficiency of transformation of TKN to nitrate of about 93%.