cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.23259622.v1
title: Stable isotopes of oxygen and hydrogen in water: analytical method evaluation and the determination of δ18O and δ2H on a control sample

description: Evaluation studies contribute to the identification of parameters that can affect the accuracy and precision of analytical methods. This study describes the analysis of δ18O and δ2H in water samples by the equilibrium method at the Isotope Geology Laboratory (LGI), Center for studies in Petrology and Geochemistry (CPGq) of the Federal University of Rio Grande do Sul (UFRGS). For that, six batches of analyzes were carried out under different ambient temperature conditions. For the reproducibility tests, four aliquots of the control sample were analyzed at the Polar Climate Center (CPC). Results showed that ambient temperature did not significantly affect the accuracy of the oxygen analysis. However, the mean result at 20 °C showed greater accuracy and acceptable precision. Hydrogen analyzes at a room temperature of 18 °C showed an external standard deviation and an internal precision exceeding the recommended, while at 20 and 22 °C the results were statistically acceptable, being the first more accurate. From that, it is possible to conclude that the determination of δ18O and δ2H in water at the LGI, employing the equilibrium method at an ambient temperature of 20 °C, showed satisfactory repeatability and reproducibility.
DOI: 10.6084/m9.figshare.23259629
title: PROTOCOL FOR THE ASSESSMENT OF INDIVIDUAL TACTICAL BEHAVIOR (PADTI) - VALIDATION AND REPRODUCIBILITY: PRELIMINARY EVIDENCE

description: ABSTRACT In order to carry out the process of validation and reproducibility of the Protocol for the Assessment of Individual Tactical Behavior of Soccer athletes (PADTI), a study was carried out divided into three stages: I) preparation of the PADTI; II) logical, content and construct validation and; III) reproducibility. The PADTI was developed based on the 8 fundamental tactical principles of soccer, which were inserted in a Microsoft Excel® spreadsheet, used to collect, store and process the tactical actions of soccer players during the game. The PADTI validity process was performed by 8 professionals, using a spreadsheet to account for items using a Likert scale (5 points). Reproducibility was carried out in two moments with an interval of 15 days, using as a sample the tactical behaviors of the athletes of the Brazilian team, during a soccer match of the 2018 world cup. validity (IV) of 90%. There were no significant differences between the responses of the evaluators (χ² = 12.199; p = 0.094). The intraclass correlation (ICC) values were greater than 0.814 (CI: 95%: 0.251 - 0.954; p &lt;0.001) and Cronbach's Alpha values were greater than α = 0.814. The results indicated that the PADTI is a valid and useful methodology for assessing the tactical performance of soccer players in a game situation.
DOI: 10.6084/m9.figshare.23259631
title: Brazil and Latin America after the Cold War

description: ABSTRACT The end of the Cold War and the revolutionary transformation of the Second World have provoked a pessimistic wave about the destiny of the Third World, now called “South”. The death of the State Socialism does not necessarily determine a future of misfortunes to that group of countries, including Brazil. Some “South” countries will escape from an obscure destiny, but others will not, depending upon the competence of their elites and of their political forces in order to define and implement a national development project. This article deals with the context in which Brazil and Latin America are after the Cold War.
DOI: 10.6084/m9.figshare.23259631.v1
title: Brazil and Latin America after the Cold War

description: ABSTRACT The end of the Cold War and the revolutionary transformation of the Second World have provoked a pessimistic wave about the destiny of the Third World, now called “South”. The death of the State Socialism does not necessarily determine a future of misfortunes to that group of countries, including Brazil. Some “South” countries will escape from an obscure destiny, but others will not, depending upon the competence of their elites and of their political forces in order to define and implement a national development project. This article deals with the context in which Brazil and Latin America are after the Cold War.
DOI: 10.6084/m9.figshare.23259634
title: EFFECT OF A SINGLE RESISTANCE EXERCISE SESSION ON INFLAMMATORY MARKERS AND OXIDATIVE STRESS IN WOMEN LIVING WITH HIV

description: ABSTRACT People living with HIV (PLH), who use antiretroviral therapy (ART), are more susceptible to changes in the inflammatory profile and oxidative stress, and women have greater access to ART. Although physical exercise is a complementary strategy to treatment due to its antioxidant and anti-inflammatory effects, it is not clear whether acute responses to exercise can be harmful to PLH. The aim of the study was to investigate the acute effect of resistance exercise (RE) on inflammatory and oxidative stress markers in PLH. Ten women, using ART, performed RE session consisting of seven exercises for the whole body. For biochemical evaluation, blood samples were collected before (pre), 1 hour (1h) and 2 hours (2h) after the RE session. One-way ANOVA followed by Bonferroni's post hoc test was used to compare results between time points. There was an increase only in markers, GSSG of 160% (pre: 0.40 ± 0.11; 1h: 1.18 ± 0.36; 2h: 1.04 ± 0.25 mmol/g), TNF-α of 98 % (pre: 4.60 ± 0.55; 1h: 6.95 ± 0.77; 2h: 9.10 ± 1.03 pg/ml) and 52% IL-6 (pre: 2.47 ± 0 .67; 1h: 3.63 ± 1.26; 2h: 5.38 ± 2.15 pg/ml). The other variables remained unchanged (P &gt; 0.05). It is concluded that a RE session increased the levels of inflammatory markers and oxidative stress in PLH in a non-exacerbated way.
DOI: 10.6084/m9.figshare.23259634.v1
title: EFFECT OF A SINGLE RESISTANCE EXERCISE SESSION ON INFLAMMATORY MARKERS AND OXIDATIVE STRESS IN WOMEN LIVING WITH HIV

description: ABSTRACT People living with HIV (PLH), who use antiretroviral therapy (ART), are more susceptible to changes in the inflammatory profile and oxidative stress, and women have greater access to ART. Although physical exercise is a complementary strategy to treatment due to its antioxidant and anti-inflammatory effects, it is not clear whether acute responses to exercise can be harmful to PLH. The aim of the study was to investigate the acute effect of resistance exercise (RE) on inflammatory and oxidative stress markers in PLH. Ten women, using ART, performed RE session consisting of seven exercises for the whole body. For biochemical evaluation, blood samples were collected before (pre), 1 hour (1h) and 2 hours (2h) after the RE session. One-way ANOVA followed by Bonferroni's post hoc test was used to compare results between time points. There was an increase only in markers, GSSG of 160% (pre: 0.40 ± 0.11; 1h: 1.18 ± 0.36; 2h: 1.04 ± 0.25 mmol/g), TNF-α of 98 % (pre: 4.60 ± 0.55; 1h: 6.95 ± 0.77; 2h: 9.10 ± 1.03 pg/ml) and 52% IL-6 (pre: 2.47 ± 0 .67; 1h: 3.63 ± 1.26; 2h: 5.38 ± 2.15 pg/ml). The other variables remained unchanged (P &gt; 0.05). It is concluded that a RE session increased the levels of inflammatory markers and oxidative stress in PLH in a non-exacerbated way.
DOI: 10.6084/m9.figshare.23259635
title: Is bad breath associated with dyspepsia? An association and an equivalence study

description: Abstract Halitosis affects all populations worldwide. The presence of chronic halitosis may be related to a health problem. Patients with bad breath usually seek a gastroenterologist and, in some cases, invasive and expensive exams, such as digestive endoscopy, are performed to investigate the etiology of halitosis. This study aimed to investigate whether the prevalence of bad breath in patients diagnosed with dyspepsia (any pain or discomfort in the upper abdomen) is higher than or equivalent to that in non-dyspeptic patients. This is a cross-sectional study that included 312 patients from university hospitals in the city of Rio de Janeiro (141 dyspeptic patients and 171 non-dyspeptic ones). The presence of halitosis was defined based on different cutoff points. Association analyses were performed using a log-binomial model and 95% confidence intervals were calculated for the coefficients, adjusting for sex and age. The equivalence test (Westlake) was used to test the hypothesis of equivalence between the proportions of patients with bad breath in the two groups (dyspeptic vs. non-dyspeptic), considering an equivalence band of ± 15%. The prevalence of bad breath ranged from 30% to 64% according to the definition of bad breath. Dyspepsia was not associated with bad breath in any of the three definitions of bad breath (two specific ones and a sensitive one). The proportion of patients with marked bad breath was equivalent in patients with and without dyspepsia.
DOI: 10.6084/m9.figshare.23259635.v1
title: Is bad breath associated with dyspepsia? An association and an equivalence study

description: Abstract Halitosis affects all populations worldwide. The presence of chronic halitosis may be related to a health problem. Patients with bad breath usually seek a gastroenterologist and, in some cases, invasive and expensive exams, such as digestive endoscopy, are performed to investigate the etiology of halitosis. This study aimed to investigate whether the prevalence of bad breath in patients diagnosed with dyspepsia (any pain or discomfort in the upper abdomen) is higher than or equivalent to that in non-dyspeptic patients. This is a cross-sectional study that included 312 patients from university hospitals in the city of Rio de Janeiro (141 dyspeptic patients and 171 non-dyspeptic ones). The presence of halitosis was defined based on different cutoff points. Association analyses were performed using a log-binomial model and 95% confidence intervals were calculated for the coefficients, adjusting for sex and age. The equivalence test (Westlake) was used to test the hypothesis of equivalence between the proportions of patients with bad breath in the two groups (dyspeptic vs. non-dyspeptic), considering an equivalence band of ± 15%. The prevalence of bad breath ranged from 30% to 64% according to the definition of bad breath. Dyspepsia was not associated with bad breath in any of the three definitions of bad breath (two specific ones and a sensitive one). The proportion of patients with marked bad breath was equivalent in patients with and without dyspepsia.
DOI: 10.6084/m9.figshare.23259638.v1
title: Decreased spacing with different numbers of branches to enhance green fig production

description: Abstract The objective of this work was to evaluate the effect of decreased spacing between 'Roxo de Valinhos' fig (Ficus carica) trees with different numbers of fruiting branches on green fig production. Fig trees, with two or four fruiting branches, were distributed in four blocks, at a standard spacing of 2.5 m between rows, three spacing between plants in a row (0.50, 0.75, and 1.00 m), and densities of 8,000, 5,333, and 4,000 plants per hectare. The experiment was conducted during two cycles (2020/2021 and 2021/2022). Green fruits were harvested twice a week, and the total number of fruits per harvest and the total harvest weight per plant were quantified. The average production per plant and the estimated yield were calculated for each evaluation cycle. Decreasing the spacing between fig trees increases their yield. The spacing of 0.50 m decreases production per plant, but increases yield in 73%. There is no difference in the production of green figs between trees with two or four fruiting branches.
DOI: 10.6084/m9.figshare.23259638
title: Decreased spacing with different numbers of branches to enhance green fig production

description: Abstract The objective of this work was to evaluate the effect of decreased spacing between 'Roxo de Valinhos' fig (Ficus carica) trees with different numbers of fruiting branches on green fig production. Fig trees, with two or four fruiting branches, were distributed in four blocks, at a standard spacing of 2.5 m between rows, three spacing between plants in a row (0.50, 0.75, and 1.00 m), and densities of 8,000, 5,333, and 4,000 plants per hectare. The experiment was conducted during two cycles (2020/2021 and 2021/2022). Green fruits were harvested twice a week, and the total number of fruits per harvest and the total harvest weight per plant were quantified. The average production per plant and the estimated yield were calculated for each evaluation cycle. Decreasing the spacing between fig trees increases their yield. The spacing of 0.50 m decreases production per plant, but increases yield in 73%. There is no difference in the production of green figs between trees with two or four fruiting branches.
DOI: 10.6084/m9.figshare.23259640
title: Epipericardial fat necrosis as a differential diagnosis of acute chest pain: a case report and algorithm proposal for diagnostic approach

description: ABSTRACT Chest pain is a frequent, potentially life-threatening condition in the emergency department and requires immediate investigation and treatment. This case report highlights a rare differential diagnosis of pleuritic chest pain: epipericardial fat necrosis. A 29-year-old man presented with normal clinical evaluation, electrocardiography, point-of-care ultrasound, and unremarkable laboratory tests. The initial hypothesis was acute pleuritis. Chest radiography revealed peri-cardiac nonspecific findings, and computed tomography revealed epicardial fat necrosis. Despite the rarity of this condition, accurate diagnosis allows for better practices. An algorithm for a diagnostic approach is proposed.
DOI: 10.6084/m9.figshare.23259640.v1
title: Epipericardial fat necrosis as a differential diagnosis of acute chest pain: a case report and algorithm proposal for diagnostic approach

description: ABSTRACT Chest pain is a frequent, potentially life-threatening condition in the emergency department and requires immediate investigation and treatment. This case report highlights a rare differential diagnosis of pleuritic chest pain: epipericardial fat necrosis. A 29-year-old man presented with normal clinical evaluation, electrocardiography, point-of-care ultrasound, and unremarkable laboratory tests. The initial hypothesis was acute pleuritis. Chest radiography revealed peri-cardiac nonspecific findings, and computed tomography revealed epicardial fat necrosis. Despite the rarity of this condition, accurate diagnosis allows for better practices. An algorithm for a diagnostic approach is proposed.
DOI: 10.6084/m9.figshare.23259643
title: Income distribution in Brazil in the 1980s

description: Abstract Contrary to the huge development of the Brazilian economy from the post-war to the end of the seventies, the eighties signified the rupture of this cycle and the combination of a chronic inflationary process, the economic stagnation and the worsening of income inequality. These factors together have not revealed to be neutral concerning the distributive aspect. Between 1981 and 1989, the income of the 10 per cent richer increased 14,2 per cent, while the income of the 20 per cent poorer decreased 26 per cent. This work presents some international comparisons, even on the functional as well as on the personal distribution of income and concludes that this distribution becomes a fundamental aspect to the stabilization and to the economic-social development recovering.
DOI: 10.6084/m9.figshare.23259643.v1
title: Income distribution in Brazil in the 1980s

description: Abstract Contrary to the huge development of the Brazilian economy from the post-war to the end of the seventies, the eighties signified the rupture of this cycle and the combination of a chronic inflationary process, the economic stagnation and the worsening of income inequality. These factors together have not revealed to be neutral concerning the distributive aspect. Between 1981 and 1989, the income of the 10 per cent richer increased 14,2 per cent, while the income of the 20 per cent poorer decreased 26 per cent. This work presents some international comparisons, even on the functional as well as on the personal distribution of income and concludes that this distribution becomes a fundamental aspect to the stabilization and to the economic-social development recovering.
DOI: 10.6084/m9.figshare.23259646
title: The Latin-American monetary system after the end of inflation

description: ABSTRACT This paper discusses three interdependent topics. The first is that the economic reforms implemented in Latin America after the mid-1980s were not sufficient to ensure exchange rate stability in the region. The second is that there are favorable conditions to start the process of macroeconomic convergence between Latin American countries. The third topic refers to the strategic role to be played by Argentina, Brazil, Canada, and Mexico as reducing the degree of asymmetry generated by the presence of the American economy.
DOI: 10.6084/m9.figshare.23259646.v1
title: The Latin-American monetary system after the end of inflation

description: ABSTRACT This paper discusses three interdependent topics. The first is that the economic reforms implemented in Latin America after the mid-1980s were not sufficient to ensure exchange rate stability in the region. The second is that there are favorable conditions to start the process of macroeconomic convergence between Latin American countries. The third topic refers to the strategic role to be played by Argentina, Brazil, Canada, and Mexico as reducing the degree of asymmetry generated by the presence of the American economy.
DOI: 10.6084/m9.figshare.23259647
title: Quantitative and qualitative characterization of the granulometry of an Inceptisol

description: Granulometry is an initial factor to be considered in soil research as it plays a fundamental role in physical and chemical properties. The objective of this study was to characterize the granulometric fractions of soil, obtained using the screening and sedimentation method. The Dynamic Light Scattering (DLS), Mid-Infrared (MIR), and Scanning Electron Microscopy with Field Emission Gun (SEM-FEG) techniques were used for this purpose. The quantitative results showed that this soil presents high percentage of clay, followed by fine sand fraction, silt fraction and, finally, the coarse sand fraction. The results obtained by DLS qualify this technique as a procedure to evaluate the quality of the granulometric fractionation of the clay fraction. The MIR analyzes detected characteristic vibrational states of minerals such as kaolinite, halloysite, gibbsite, and quartz. Few works in the literature characterize the clay fraction of the soil without chemical treatment using the SEM-FEG technique. Thus, in this work, pseudo-hexagonal structures were identified, typical of the kaolinite mineral and, to a lesser extent, structures with a filamentous needle-like morphology, which can be ascribed to illite and/or halloysite, whose inorganic functional groups were identified by MIR in the clay fraction of the soil.
DOI: 10.6084/m9.figshare.23259647.v1
title: Quantitative and qualitative characterization of the granulometry of an Inceptisol

description: Granulometry is an initial factor to be considered in soil research as it plays a fundamental role in physical and chemical properties. The objective of this study was to characterize the granulometric fractions of soil, obtained using the screening and sedimentation method. The Dynamic Light Scattering (DLS), Mid-Infrared (MIR), and Scanning Electron Microscopy with Field Emission Gun (SEM-FEG) techniques were used for this purpose. The quantitative results showed that this soil presents high percentage of clay, followed by fine sand fraction, silt fraction and, finally, the coarse sand fraction. The results obtained by DLS qualify this technique as a procedure to evaluate the quality of the granulometric fractionation of the clay fraction. The MIR analyzes detected characteristic vibrational states of minerals such as kaolinite, halloysite, gibbsite, and quartz. Few works in the literature characterize the clay fraction of the soil without chemical treatment using the SEM-FEG technique. Thus, in this work, pseudo-hexagonal structures were identified, typical of the kaolinite mineral and, to a lesser extent, structures with a filamentous needle-like morphology, which can be ascribed to illite and/or halloysite, whose inorganic functional groups were identified by MIR in the clay fraction of the soil.
DOI: 10.6084/m9.figshare.23259653.v1
title: Trade liberalization, distribution and employment

description: ABSTRACT The paper approaches aspects of the political economy of trade liberalization. It examines the reasons for the establishment of protectionist practices, the social costs of such practices and the relation between distributive conflicts and protectionism, emphasizing the formation of distributive coalitions. We apply these concepts and ideas to the Brazilian case in order to examine the distributive effects of the protectionist structure which prevailed until the late 1980’s and the potential changes over the 1990’s. Finally, we develop a macroeconomic model to explore the effects of liberalization on the functional distribution of income and aggregate demand.
DOI: 10.6084/m9.figshare.23259653
title: Trade liberalization, distribution and employment

description: ABSTRACT The paper approaches aspects of the political economy of trade liberalization. It examines the reasons for the establishment of protectionist practices, the social costs of such practices and the relation between distributive conflicts and protectionism, emphasizing the formation of distributive coalitions. We apply these concepts and ideas to the Brazilian case in order to examine the distributive effects of the protectionist structure which prevailed until the late 1980’s and the potential changes over the 1990’s. Finally, we develop a macroeconomic model to explore the effects of liberalization on the functional distribution of income and aggregate demand.
DOI: 10.6084/m9.figshare.23259656.v1
title: Electoral interests and price fluctuation in regulated markets

description: ABSTRACT This paper builds on the theory of regulation developed by Stigler and Peltzman. According to these authors, a regulator chooses his/her strategy seeking to maximize political support from consumers and producers, viewing welfare and efficiency as secondary issues. This process determines a regulated price that is between the competitive and monopolistic levels. Our paper develops a modified version of Peltzman’s model by considering the idea that the regulator’s behaviour might change with the proximity of elections. The addition of a timing dimension to the problem and its implication for consumers, producers and the regulator’s behavior suggest that the optimal strategy now implies in a price cycle in regulated industries. The regulator has incentives to impose higher prices when elections are relatively far ahead and lower (real) prices in periods that immediately precede an important election. We show that the Brazilian gasoline market between 1969-1984 supports our results.