cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7677413
title: Reduction of electric arc furnace dust pellets by mixture containing hydrogen

description: Abstract The large amount of dust generated in electric arc furnace aligned with its chemical composition makes this dust a potential source of iron in the direct reduction iron process. Thus, the aim of this research is to investigate the reduction of pellets produced with electric arc furnace dust using hydrogen as the reducing agent. The kinetic investigation was examined applying the differential method. In addition, the influence of reducing gas stream and temperature in the reduction process were investigated applying the Forced Stepwise Isothermal Analysis technique. The temperature studied varied from 500 to 1000°C with isothermals in each 50°C. The reducing gas was a mixture of 10% of hydrogen and 90% of argon. Then, the product characterization was carried out via scanning electron microscope and X-ray analysis. A thermogravimetric test showed a mass loss of 42 wt% due to the reduction of iron and zinc oxides. Besides this, the reduction occurred in three steps: 550-650°C, 700-800°C, 850-950°C. Between 550-650°C, the reduction was controlled by a nucleation mechanism with an Ea of 41.1 kJ/mol. In the second step (700-800°C), a mixed control between nucleation and diffusion was obtained with an Ea of 89.1 kJ/mol. Furthermore, a crust of iron was formed around the pellet, which hindered the reducing gas diffusion into the pellet. In the third stage (850-950°C), the formation of a sintered structure was noted, which decreased pore volume. The internal diffusion of reducing gases was determined as the controlling mechanism, with an Ea of 130.9 kJ/mol.
DOI: 10.6084/m9.figshare.5719654
title: Sociodemographic construction in Córdoba (Argentina): changes of social structures in the territory and their impact on the demand for urban habitat

description: Abstract The situation in Córdoba (Argentina) is revisited in terms of sociodemographic trends in the territory in a future short-term scenario. Demographic/territorial variables from official census data were combined, along with lifestyle and consumption variables surveyed by public and private consultants. This was complemented by a sociological analysis based on a review of the specific literature. Simultaneous macrocephaly and counterurbanization processes were detected, as well as changes in family structures and lifestyles, characteristic of the dialectic between the condition of an advanced demographic transition and processes of the current postmodern neoliberalism.
DOI: 10.6084/m9.figshare.5719654.v1
title: Sociodemographic construction in Córdoba (Argentina): changes of social structures in the territory and their impact on the demand for urban habitat

description: Abstract The situation in Córdoba (Argentina) is revisited in terms of sociodemographic trends in the territory in a future short-term scenario. Demographic/territorial variables from official census data were combined, along with lifestyle and consumption variables surveyed by public and private consultants. This was complemented by a sociological analysis based on a review of the specific literature. Simultaneous macrocephaly and counterurbanization processes were detected, as well as changes in family structures and lifestyles, characteristic of the dialectic between the condition of an advanced demographic transition and processes of the current postmodern neoliberalism.
DOI: 10.6084/m9.figshare.7511294
title: Recombinant human TSH versus thyroid hormone withdrawal in adjuvant therapy with radioactive iodine of patients with papillary thyroid carcinoma and clinically apparent lymph node metastases not limited to the central compartment (cN1b)

description: ABSTRACT Objective To compare the short- and long-term outcomes of adjuvant therapy with radioactive iodine (RAI) preceded by the administration of recombinant human TSH (rhTSH) versus thyroid hormone withdrawal (THW) in patients with papillary thyroid carcinoma and clinically apparent lymph node metastases not limited to the central neck compartment (cN1b). Subjects and methods The sample consisted of 178 cN1b patients at intermediate risk who underwent total thyroidectomy with apparently complete tumor resection [including postoperative ultrasonography (US) without anomalies] and who received adjuvant therapy with RAI (30-100 mCi) preceded by the administration of rhTSH (n = 91) or THW (n = 87). Results One year after RAI, the rates of excellent response to therapy, i.e., nonstimulated thyroglobulin (Tg) ≤ 0.2 ng/mL with negative antithyroglobulin antibodies and negative neck US, and of structural disease were similar for the two preparations (84% and 4.5%, respectively, in both groups). During follow-up (median 66 months), the rate of structural or biochemical (nonstimulated Tg &gt; 1 ng/mL, with increment) recurrence was also similar in the two groups (4.5%). In the last assessment, the percentage of patients without evidence of disease, i.e., nonstimulated Tg &lt; 1 ng/mL and no evidence of structural disease, was similar for the two preparations [92.3% in the rhTSH group and 97.7% in the THW group (p = 0.17)]. Conclusion Preparation with rhTSH was equally effective (short- and long-term) as THW for adjuvant RAI therapy of cN1b patients at intermediate risk and with apparently complete tumor resection.
DOI: 10.6084/m9.figshare.7517432
title: Income smoothing: a study of the health sector’s credit unions

description: Abstract Purpose: The aim of this study was to verify whether the credit unions affiliated to Brazilian Confederation of Central Cooperatives (UNICRED) manage their accounting results, in order to reduce the variability of the institution’s returns and transmit a sense of solidity to its members. Design/methodology/approach: The method adopted was the Classic Linear Regression Model with Panel Data, estimated by Feasible Generalized Least Squares for fixed effects and corrections for heteroscedasticity. The sample was made up of 113 credit unions affiliated to UNICRED systems, over the 2001-2011 period, and data was made available by Central Bank of Brazil. Findings: The analysis, carried out through non-discretionary results on credit operations in order to explain the changes in net expenses of provision on credit operations, indicated there was smoothing of results. Thus, we can infer that the credit unions affiliated to UNICRED make use of earnings management in the income smoothing modality. Originality/value: This study contributes to the issue of Accounting Results Management, and corroborates that there are indications that, in the occurrence of higher non-discretionary results, credit unions tend to maximize provisions. Similarly, in the occurrence of lower non-discretionary results, they tend to minimize provisions, making evident the search for smaller variability in results, thus signaling mitigation of risks.
DOI: 10.6084/m9.figshare.7517432.v1
title: Income smoothing: a study of the health sector’s credit unions

description: Abstract Purpose: The aim of this study was to verify whether the credit unions affiliated to Brazilian Confederation of Central Cooperatives (UNICRED) manage their accounting results, in order to reduce the variability of the institution’s returns and transmit a sense of solidity to its members. Design/methodology/approach: The method adopted was the Classic Linear Regression Model with Panel Data, estimated by Feasible Generalized Least Squares for fixed effects and corrections for heteroscedasticity. The sample was made up of 113 credit unions affiliated to UNICRED systems, over the 2001-2011 period, and data was made available by Central Bank of Brazil. Findings: The analysis, carried out through non-discretionary results on credit operations in order to explain the changes in net expenses of provision on credit operations, indicated there was smoothing of results. Thus, we can infer that the credit unions affiliated to UNICRED make use of earnings management in the income smoothing modality. Originality/value: This study contributes to the issue of Accounting Results Management, and corroborates that there are indications that, in the occurrence of higher non-discretionary results, credit unions tend to maximize provisions. Similarly, in the occurrence of lower non-discretionary results, they tend to minimize provisions, making evident the search for smaller variability in results, thus signaling mitigation of risks.
DOI: 10.6084/m9.figshare.7511294.v1
title: Recombinant human TSH versus thyroid hormone withdrawal in adjuvant therapy with radioactive iodine of patients with papillary thyroid carcinoma and clinically apparent lymph node metastases not limited to the central compartment (cN1b)

description: ABSTRACT Objective To compare the short- and long-term outcomes of adjuvant therapy with radioactive iodine (RAI) preceded by the administration of recombinant human TSH (rhTSH) versus thyroid hormone withdrawal (THW) in patients with papillary thyroid carcinoma and clinically apparent lymph node metastases not limited to the central neck compartment (cN1b). Subjects and methods The sample consisted of 178 cN1b patients at intermediate risk who underwent total thyroidectomy with apparently complete tumor resection [including postoperative ultrasonography (US) without anomalies] and who received adjuvant therapy with RAI (30-100 mCi) preceded by the administration of rhTSH (n = 91) or THW (n = 87). Results One year after RAI, the rates of excellent response to therapy, i.e., nonstimulated thyroglobulin (Tg) ≤ 0.2 ng/mL with negative antithyroglobulin antibodies and negative neck US, and of structural disease were similar for the two preparations (84% and 4.5%, respectively, in both groups). During follow-up (median 66 months), the rate of structural or biochemical (nonstimulated Tg &gt; 1 ng/mL, with increment) recurrence was also similar in the two groups (4.5%). In the last assessment, the percentage of patients without evidence of disease, i.e., nonstimulated Tg &lt; 1 ng/mL and no evidence of structural disease, was similar for the two preparations [92.3% in the rhTSH group and 97.7% in the THW group (p = 0.17)]. Conclusion Preparation with rhTSH was equally effective (short- and long-term) as THW for adjuvant RAI therapy of cN1b patients at intermediate risk and with apparently complete tumor resection.
DOI: 10.6084/m9.figshare.7519379
title: Reading food labels among users of primary care and associated factors

description: Abstract Objective To determine the prevalence of reading food labels, associated factors and information consulted by adults and elderly users of primary care. Methods Cross-sectional study with data collected by questionnaire. It was asked about the habit of reading labels and those who answered affirmatively where questioned about what information they are consulting. Calculating the prevalence of the outcome and its association with demographic and socioeconomic characteristics, status and health services utilization, knowledge about health and nutrition and lifestyle habits. Results Among the 1,246 respondents, reading labels was reported by 70.9% and the associated factors were sex, age, marital status, education, diagnosis of chronic diseases, health and food self-perception, access to information on health and nutrition, guidance received for healthy eating and the practice of physical activity. The most consulted information was the expiration date (73.8%) and nutritional value (18%). Conclusion Reading food labels need to be popularized, through educational campaigns, or the interaction between users and health professionals. It is necessary to emphasize not only the importance of observing the validity of the products, but mainly to check the nutritional information in order to have healthier food choices.
DOI: 10.6084/m9.figshare.7519379.v1
title: Reading food labels among users of primary care and associated factors

description: Abstract Objective To determine the prevalence of reading food labels, associated factors and information consulted by adults and elderly users of primary care. Methods Cross-sectional study with data collected by questionnaire. It was asked about the habit of reading labels and those who answered affirmatively where questioned about what information they are consulting. Calculating the prevalence of the outcome and its association with demographic and socioeconomic characteristics, status and health services utilization, knowledge about health and nutrition and lifestyle habits. Results Among the 1,246 respondents, reading labels was reported by 70.9% and the associated factors were sex, age, marital status, education, diagnosis of chronic diseases, health and food self-perception, access to information on health and nutrition, guidance received for healthy eating and the practice of physical activity. The most consulted information was the expiration date (73.8%) and nutritional value (18%). Conclusion Reading food labels need to be popularized, through educational campaigns, or the interaction between users and health professionals. It is necessary to emphasize not only the importance of observing the validity of the products, but mainly to check the nutritional information in order to have healthier food choices.
DOI: 10.6084/m9.figshare.11266658
title: Social representations of disease, uses and meanings attributed to Integrative and Complementary Practices by students

description: ABSTRACT The objective of this study was to apprehend the social representations of university students about disease and to analyze the uses and meanings conferred by them to Integrative and Complementary Practices. For this purpose, a qualitative research based on the Theory of Social Representations was carried out, using a semi-structured questionnaire to collect the data, which included, in its structure, the Free Word Association Test. The majority of students declared to be attending the first semester of the course, in the age group of 18 to 24 years old and has a religion. For them, disease was most associated with imbalance, with massage being the practice most adopted. These students have related integrative practices to production of benefits to life, health and maintenance or achievement of individual quality of life. In this sense, the answers suggest that students believe in the efficacy of integrative practices, considering them as linked to health’s promotion, prevention and recovery. They are open to other medical rationalities, although they are also linked to the biomedical model. Understanding how students think about disease and use of integrative practices collaborate to assign meanings to therapeutic projects organized in health system, directing the health care to construction of comprehensive care.
DOI: 10.6084/m9.figshare.11266658.v1
title: Social representations of disease, uses and meanings attributed to Integrative and Complementary Practices by students

description: ABSTRACT The objective of this study was to apprehend the social representations of university students about disease and to analyze the uses and meanings conferred by them to Integrative and Complementary Practices. For this purpose, a qualitative research based on the Theory of Social Representations was carried out, using a semi-structured questionnaire to collect the data, which included, in its structure, the Free Word Association Test. The majority of students declared to be attending the first semester of the course, in the age group of 18 to 24 years old and has a religion. For them, disease was most associated with imbalance, with massage being the practice most adopted. These students have related integrative practices to production of benefits to life, health and maintenance or achievement of individual quality of life. In this sense, the answers suggest that students believe in the efficacy of integrative practices, considering them as linked to health’s promotion, prevention and recovery. They are open to other medical rationalities, although they are also linked to the biomedical model. Understanding how students think about disease and use of integrative practices collaborate to assign meanings to therapeutic projects organized in health system, directing the health care to construction of comprehensive care.
DOI: 10.6084/m9.figshare.7514486
title: Environmental performance evaluation of hot water supplying systems for domestic use

description: The consumption profile of Brazilian citizens is changing as alternatives are sought to reduce costs. A major focus of this change of attitude involves expenditures for electricity, particularly in relation to water heating systems. The manufacturers of these devices add value to their products beyond price. A usual strategy is the enhancement of the environmental performance of the product. This study compared four water heating systems: electric, gas, solar and hybrid, using an environmental perspective. The systems were operated under similar conditions. The analysis was conducted by using the Life Cycle Assessment technique, for the impact categories of Climate Change, Acidification, Eutrophication and Water, Metal and Fossil Resource depletion. The results indicated that the electric and hybrid systems are less harmful to the environment for all the impact categories under analysis. On the other hand, the gas system provided the worst performance of the group. The solar heating system was penalized due to its dependence on electricity to operate under the conditions in which the study was conducted.
DOI: 10.6084/m9.figshare.7514486.v1
title: Environmental performance evaluation of hot water supplying systems for domestic use

description: The consumption profile of Brazilian citizens is changing as alternatives are sought to reduce costs. A major focus of this change of attitude involves expenditures for electricity, particularly in relation to water heating systems. The manufacturers of these devices add value to their products beyond price. A usual strategy is the enhancement of the environmental performance of the product. This study compared four water heating systems: electric, gas, solar and hybrid, using an environmental perspective. The systems were operated under similar conditions. The analysis was conducted by using the Life Cycle Assessment technique, for the impact categories of Climate Change, Acidification, Eutrophication and Water, Metal and Fossil Resource depletion. The results indicated that the electric and hybrid systems are less harmful to the environment for all the impact categories under analysis. On the other hand, the gas system provided the worst performance of the group. The solar heating system was penalized due to its dependence on electricity to operate under the conditions in which the study was conducted.
DOI: 10.6084/m9.figshare.7677413.v1
title: Reduction of electric arc furnace dust pellets by mixture containing hydrogen

description: Abstract The large amount of dust generated in electric arc furnace aligned with its chemical composition makes this dust a potential source of iron in the direct reduction iron process. Thus, the aim of this research is to investigate the reduction of pellets produced with electric arc furnace dust using hydrogen as the reducing agent. The kinetic investigation was examined applying the differential method. In addition, the influence of reducing gas stream and temperature in the reduction process were investigated applying the Forced Stepwise Isothermal Analysis technique. The temperature studied varied from 500 to 1000°C with isothermals in each 50°C. The reducing gas was a mixture of 10% of hydrogen and 90% of argon. Then, the product characterization was carried out via scanning electron microscope and X-ray analysis. A thermogravimetric test showed a mass loss of 42 wt% due to the reduction of iron and zinc oxides. Besides this, the reduction occurred in three steps: 550-650°C, 700-800°C, 850-950°C. Between 550-650°C, the reduction was controlled by a nucleation mechanism with an Ea of 41.1 kJ/mol. In the second step (700-800°C), a mixed control between nucleation and diffusion was obtained with an Ea of 89.1 kJ/mol. Furthermore, a crust of iron was formed around the pellet, which hindered the reducing gas diffusion into the pellet. In the third stage (850-950°C), the formation of a sintered structure was noted, which decreased pore volume. The internal diffusion of reducing gases was determined as the controlling mechanism, with an Ea of 130.9 kJ/mol.
DOI: 10.6084/m9.figshare.7513727.v1
title: Benthic invertebrates: relationship between the fauna structure and mesohabitat features

description: Abstract The formation of different mesohabitats, such as pools, riffles and runs, is common along the courses of stream ecosystems, and these are frequently accompanied by changes in the benthic fauna structure. In this paper, we analyzed the fauna of benthic invertebrates in riffles and runs of a stretch of the Capivara River (Middle Tietê River Basin). The analyses of the environmental characteristics and samplings of the fauna were performed in three riffles and three runs (five replicates in each) within a month of the rainy season. The mesohabitats differed with respect to the higher percentage of cobble in the runs and greater depth, current and number of boulders in the riffles. Of the total of 57 Operational Taxonomic Unities (OTU's) sampled, 75% were common to both mesohabitats (Morisita Similarity = 0.86). When the percentage of abundance by mesohabitat was analyzed, spatial similarity remained with Hexapoda (&gt; 80%, mainly represented by Ephemeroptera, Diptera and Trichoptera) and Annelida (10%) standing out in abundance. The exploratory analysis (cluster and NMDS) found high spatial similarity, but the results of the Analysis of Similarity (ANOSIM) indicated a significant difference between the mesohabitats (p &lt;0.1%), both when the total OTU's were analyzed or when removing the rare ones. Five groups contributed more greatly to the average dissimilarity between mesohabitats: Simulium and Baetodes were more abundant in riffles, while Traveryphes, Hagenulopsis and Macrelmis were more abundant in runs. Thus, the results of ANOSIM stressed the importance of refining identification for a more precise interpretation of the relationship between fauna and habitat structure.
DOI: 10.6084/m9.figshare.7519481
title: Analysis of precipitate density of an aluminium alloy by TEM and AFM

description: Abstract The quantification of nanometric precipitates in Al-Zn-Mg-Cu alloys has been performed by a series of experimental techniques. Especially in the AA7050 alloy, after ageing heat treatment, the particles responsible for the hardening become very thin. Typically, these precipitates of nanometric sizes are mainly characterized by transmission electron microscopy (TEM), which in this particular case, requires a very meticulous preparation. This study investigated a possible alternative quantification of the precipitates by atomic force microscopy (AFM) to complement the technique by TEM. For this, three conditions for heat treatment of an aged aluminium alloy AA7050 were therefore chosen to produce different density and sizes of precipitates. The experimental results showed that the AFM technique proved to be a valid qualitative tool and may complement the results obtained by TEM an exploratory analysis for the microstructures.