cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5772594.v1
title: The work with datum and database: considerations through and enunciative theory of language

description: Abstract: The objective is to discuss the notions of datum and analysis when the theory in question is an enunciative one, bearing in mind two central questions: if the several enunciative theories question language through a semantic point of view, aiming at studying what is singular in the speech of each speaker, how can an enunciative study be based on a corpus and, even more, constitute a database? Are enunciative studies not refractory, in a certain way, to the notion of linguistic study based on corpora? In order to answer these two questions, we present the example of a database of language disorders, ENUNSIL (Banco de Dados Enunciação e SIntoma na Linguagem), considering that, if the notion of datum is problematic to enunciative studies, such difficulties augment exponentially when symptomatic speech is at stake.
DOI: 10.6084/m9.figshare.7591571
title: Paleoenvironments of a regressive Devonian section from Paraná Basin (Mato Grosso do Sul state) by integration of ichnologic, taphonomic and sedimentologic analyses

description: ABSTRACT: Studies that integrate ichnologic, taphonomic and sedimentologic data result in more accurate paleoenvironmental inferences than isolated approaches. Most of paleontological studies regarding Devonian from Paraná Basin were conducted in the southern part of the basin (Paraná state), precluding taphonomic or ichnologic studies to the northern part, and even its macrofossils content is understudied. This study analyzes paleoecologic and depositional conditions represented by trace fossils, macrofossils and sedimentary facies in a regressive Devonian section from Paraná Basin, Mato Grosso do Sul state, Brazil. Seven ichnofabrics (Macaronichnus, Psammichnites, Arenicolites-Skolithos, Cylindrichnus-Skolithos, Zoophycos, Rhizocorallium-Palaeophycus, and Chondrites ichnofabrics) and three taphofacies (T1: parautochthonous to allochthonous preservation; T2: Autochthonous preservation; and T3: time-averaged autochthonous to allochthonous association) were diagnosed. The studied sections are positioned in a highstand systems tract (HST) exhibiting dominance of sandy facies, and four sub-environments were defined: foreshore; shoreface; storm-dominated shoreface to transitional offshore; and offshore. The dominance of foreshore to shoreface settings in a HST corroborates a shallower context in relation to the southern part. However, similarities in the facies and ichnofacies stacking, as well in the macrofossil content suggest that the hypothetical division between two sub-basins (Apucarana and Alto Garças Sub-basins) was not complete until early Emsian.
DOI: 10.6084/m9.figshare.11997489
title: Study of Design Modification Effects through Performance Analysis of a Legacy Gas Turbine Engine

description: ABSTRACT: Modifications to the critical parameters, such as the exhaust nozzle area, are sometimes done during maintenance of aircraft engines. These modifications are done either to increase the design thrust or to compensate for the reduction of thrust due to leakage in the variable area jet nozzle. There is a trade-off between several performance parameters when such critical parameters are changed during maintenance. A tuned aerothermodynamic simulation model that agrees well with the experimental data from the original engine is required to study the effect of these changes. In the present work, a multipoint map scaling approach and a parameter estimation method are used to develop a simulation model that agrees well with the experimental data from the original turbojet engine. The design modifications are then incorporated in the model, and the effect of the modification on the various performance parameters is studied. The effect of leakage in the nozzle flaps and the corresponding reduction required in the nozzle throat area are calculated. It is shown that the tuned model developed with experimental testbed data enables the identification of ancillary effects of a change in a design parameter, such as the nozzle throat area.
DOI: 10.6084/m9.figshare.11997489.v1
title: Study of Design Modification Effects through Performance Analysis of a Legacy Gas Turbine Engine

description: ABSTRACT: Modifications to the critical parameters, such as the exhaust nozzle area, are sometimes done during maintenance of aircraft engines. These modifications are done either to increase the design thrust or to compensate for the reduction of thrust due to leakage in the variable area jet nozzle. There is a trade-off between several performance parameters when such critical parameters are changed during maintenance. A tuned aerothermodynamic simulation model that agrees well with the experimental data from the original engine is required to study the effect of these changes. In the present work, a multipoint map scaling approach and a parameter estimation method are used to develop a simulation model that agrees well with the experimental data from the original turbojet engine. The design modifications are then incorporated in the model, and the effect of the modification on the various performance parameters is studied. The effect of leakage in the nozzle flaps and the corresponding reduction required in the nozzle throat area are calculated. It is shown that the tuned model developed with experimental testbed data enables the identification of ancillary effects of a change in a design parameter, such as the nozzle throat area.
DOI: 10.6084/m9.figshare.7591571.v1
title: Paleoenvironments of a regressive Devonian section from Paraná Basin (Mato Grosso do Sul state) by integration of ichnologic, taphonomic and sedimentologic analyses

description: ABSTRACT: Studies that integrate ichnologic, taphonomic and sedimentologic data result in more accurate paleoenvironmental inferences than isolated approaches. Most of paleontological studies regarding Devonian from Paraná Basin were conducted in the southern part of the basin (Paraná state), precluding taphonomic or ichnologic studies to the northern part, and even its macrofossils content is understudied. This study analyzes paleoecologic and depositional conditions represented by trace fossils, macrofossils and sedimentary facies in a regressive Devonian section from Paraná Basin, Mato Grosso do Sul state, Brazil. Seven ichnofabrics (Macaronichnus, Psammichnites, Arenicolites-Skolithos, Cylindrichnus-Skolithos, Zoophycos, Rhizocorallium-Palaeophycus, and Chondrites ichnofabrics) and three taphofacies (T1: parautochthonous to allochthonous preservation; T2: Autochthonous preservation; and T3: time-averaged autochthonous to allochthonous association) were diagnosed. The studied sections are positioned in a highstand systems tract (HST) exhibiting dominance of sandy facies, and four sub-environments were defined: foreshore; shoreface; storm-dominated shoreface to transitional offshore; and offshore. The dominance of foreshore to shoreface settings in a HST corroborates a shallower context in relation to the southern part. However, similarities in the facies and ichnofacies stacking, as well in the macrofossil content suggest that the hypothetical division between two sub-basins (Apucarana and Alto Garças Sub-basins) was not complete until early Emsian.
DOI: 10.6084/m9.figshare.6272702
title: Assessment of the Lifestyle of University Students in the Healthcare Area Using the Fantastic Questionnaire

description: Abstract Background: The constant concern about quality of life nowadays has incited individuals to seek parameters for disease prevention. Along with that, arise a need to investigate and the ability to measure elements that characterize an appropriate lifestyle. Objective: To compare the factors determining the quality of life of students in the healthcare area using the Fantastic questionnaire. Methods: Descriptive, cross-sectional, population study. The sample was obtained by convenience and comprised medical and physical therapy students of both sexes and any ethnicity, attending a private institution of higher education, who agreed to fill out the questionnaire voluntarily. The Fantastic instrument used in this study has 25 closed questions that explore nine domains including physical, psychological, and social lifestyle components. Results: In total, 57 university students participated, of whom 28 (15%) were physical therapy students and 29 (50.8%) were medical students. The mean age was 23 ± 2 years, and 40 (70.1%) were female and 17 (28.8%) were male. The overall rating was "regular", and none of the participants scored in the "very good" and "excellent" categories. The domains that mostly required change among medical students related to nutrition and physical activity, while among physical therapy students they related to cigarette, drugs, and alcohol. Conclusion: According to the data collected using the Fantastic questionnaire, there was a remarkable need for improvement in the management of the quality of life of physical therapy and medical students, therefore allowing some social and educational measures through health promotion and disease prevention.
DOI: 10.6084/m9.figshare.6502832
title: Clinical Usefulness of Cystatin C to Assess the Prognosis of Acute Coronary Syndromes: A Systematic Review and Meta-Analysis

description: Abstract Cystatin C is used as a marker of renal function and has been shown to be promising for evaluating the prognosis of acute coronary syndromes (ACSs). To evaluate the prognostic value of cystatin C in patients with ACSs. The articles were searched using PubMed, Web of Science and Scielo databases. Observational cohort studies that evaluated the association between increased cystatin C and the development of cardiovascular events and mortality in patients with ACSs were included. Only studies that evaluated similar outcomes, studies that compared the highest with the lowest quartiles of cystatin C, and studies that performed multivariate analysis that included glomerular filtration rate or serum creatinine, were included in the meta-analysis. Methodological quality of the articles was assessed using the Newcastle-Ottawa Scale questionnaire for cohort studies. After applying the eligibility criteria, 17 studies were included in the systematic review. All included studies reported a significant association between higher levels of cystatin C and outcomes. The meta-analysis demonstrated that elevated levels of cystatin C are associated with increased risk of cardiovascular mortality or non-fatal myocardial infarction in patients with ACSs, and such association is independent of renal function [OR = 1.65 (1.464 - 1.861), p &lt; 0.001]. Among the studies included, 4 have good quality and 13 have excellent methodological quality.The systematic review and meta-analysis demonstrated that there is a significant association between increased cystatin C levels and the development of cardiovascular events and mortality in patients with ACSs.
DOI: 10.6084/m9.figshare.6272702.v1
title: Assessment of the Lifestyle of University Students in the Healthcare Area Using the Fantastic Questionnaire

description: Abstract Background: The constant concern about quality of life nowadays has incited individuals to seek parameters for disease prevention. Along with that, arise a need to investigate and the ability to measure elements that characterize an appropriate lifestyle. Objective: To compare the factors determining the quality of life of students in the healthcare area using the Fantastic questionnaire. Methods: Descriptive, cross-sectional, population study. The sample was obtained by convenience and comprised medical and physical therapy students of both sexes and any ethnicity, attending a private institution of higher education, who agreed to fill out the questionnaire voluntarily. The Fantastic instrument used in this study has 25 closed questions that explore nine domains including physical, psychological, and social lifestyle components. Results: In total, 57 university students participated, of whom 28 (15%) were physical therapy students and 29 (50.8%) were medical students. The mean age was 23 ± 2 years, and 40 (70.1%) were female and 17 (28.8%) were male. The overall rating was "regular", and none of the participants scored in the "very good" and "excellent" categories. The domains that mostly required change among medical students related to nutrition and physical activity, while among physical therapy students they related to cigarette, drugs, and alcohol. Conclusion: According to the data collected using the Fantastic questionnaire, there was a remarkable need for improvement in the management of the quality of life of physical therapy and medical students, therefore allowing some social and educational measures through health promotion and disease prevention.
DOI: 10.6084/m9.figshare.6502832.v1
title: Clinical Usefulness of Cystatin C to Assess the Prognosis of Acute Coronary Syndromes: A Systematic Review and Meta-Analysis

description: Abstract Cystatin C is used as a marker of renal function and has been shown to be promising for evaluating the prognosis of acute coronary syndromes (ACSs). To evaluate the prognostic value of cystatin C in patients with ACSs. The articles were searched using PubMed, Web of Science and Scielo databases. Observational cohort studies that evaluated the association between increased cystatin C and the development of cardiovascular events and mortality in patients with ACSs were included. Only studies that evaluated similar outcomes, studies that compared the highest with the lowest quartiles of cystatin C, and studies that performed multivariate analysis that included glomerular filtration rate or serum creatinine, were included in the meta-analysis. Methodological quality of the articles was assessed using the Newcastle-Ottawa Scale questionnaire for cohort studies. After applying the eligibility criteria, 17 studies were included in the systematic review. All included studies reported a significant association between higher levels of cystatin C and outcomes. The meta-analysis demonstrated that elevated levels of cystatin C are associated with increased risk of cardiovascular mortality or non-fatal myocardial infarction in patients with ACSs, and such association is independent of renal function [OR = 1.65 (1.464 - 1.861), p &lt; 0.001]. Among the studies included, 4 have good quality and 13 have excellent methodological quality.The systematic review and meta-analysis demonstrated that there is a significant association between increased cystatin C levels and the development of cardiovascular events and mortality in patients with ACSs.
DOI: 10.6084/m9.figshare.7512992
title: Chronic stress associated to contraceptives use on the progression of ligature-induced periodontitis in rats

description: Abstract Introduction Contraceptives are widely used by women in much of the world. The stress associated with their use can lead adverse responses in the body. Objective The aim of this paper was to evaluate the effects of chronic stress associated with contraceptive use on the progression of ligature-induced periodontitis in female Lewis rats. Material and method Therefore, forty rats were randomly divided into 5 groups (n = 8): contraceptive and ligature group (CG); stress and ligature group (SG); contraceptive, stress and ligature group (CSG); ligature group (LG); and control group (CtrlG). An injectable contraceptive was administered to the CG and CSG groups at the beginning of the experiment. On the following day, periodontitis was induced in the CG, SG, LG and CSG groups by placing ligatures on the upper-right second molar. On the third day, the SG and the CSG were subjected to a chronic stress model using physical restraint and cold exposure. After 60 days, the animals were euthanized and submitted to histometric measurements. Two parameters were considered: histological attachment loss (CEJ-PL) and bone loss (CEJ-BC). Regarding CEJ-PL/CEJ-BC. Result The results indicated that the CtrlG (CEJ-PL 0.10 ± 0.00; CEJ-BC 0.34 ± 0.02) showed the lowest values (p&lt;0.05). The SG group (CEJ-PL 0.90 ± 0.24; CEJ-BC 1.30 ± 0.28) presented higher values that were significantly different (p&lt;0.05) from the results of the LG. The other groups exhibited similar statistical results (p&gt;0.05). Conclusion The present results do not allow an assessment of the susceptibility of animals to ligature-induced periodontitis.
DOI: 10.6084/m9.figshare.7515437
title: PROCESSING YELD AND PROXIMATE COMPOSITION OF Rhamdia voulezi FILLETS

description: Abstract The aim of this study was evaluate the effect of slaughter weight and sex on processing yield and on the proximate composition of Rhamdia voulezi. We calculated the percentage yield of the whole fish (carcass, clean trunk, abdominal muscle, fillet, edible parts, head, skin, gonads and visceral fat yield). There was no statistical difference in yields among weight classes (P&gt;0.05). However, when assessing the income between sexes we observed significant difference (P&lt;0.05) for carcass, clean trunk, muscle and abdominal visceral fat yield, and males presented the highest values for these items. Females had higher (P&lt;0.05) gonads yield. Crude protein, ashes and carbohydrates did not differ (P&gt;0.05) among the classes, however, moisture, lipids and calories had significant difference (P&lt;0.05) among the classes, and humidity decreased with increasing size of the fish, and lipid content and calorific value were higher for fish weighing 301-400 g. We concluded R. voulezi with mass between 100 and 400 g presents equal yield processing, and fish weighing 301-400 g have higher lipid content in the fillet.
DOI: 10.6084/m9.figshare.7515437.v1
title: PROCESSING YELD AND PROXIMATE COMPOSITION OF Rhamdia voulezi FILLETS

description: Abstract The aim of this study was evaluate the effect of slaughter weight and sex on processing yield and on the proximate composition of Rhamdia voulezi. We calculated the percentage yield of the whole fish (carcass, clean trunk, abdominal muscle, fillet, edible parts, head, skin, gonads and visceral fat yield). There was no statistical difference in yields among weight classes (P&gt;0.05). However, when assessing the income between sexes we observed significant difference (P&lt;0.05) for carcass, clean trunk, muscle and abdominal visceral fat yield, and males presented the highest values for these items. Females had higher (P&lt;0.05) gonads yield. Crude protein, ashes and carbohydrates did not differ (P&gt;0.05) among the classes, however, moisture, lipids and calories had significant difference (P&lt;0.05) among the classes, and humidity decreased with increasing size of the fish, and lipid content and calorific value were higher for fish weighing 301-400 g. We concluded R. voulezi with mass between 100 and 400 g presents equal yield processing, and fish weighing 301-400 g have higher lipid content in the fillet.
DOI: 10.6084/m9.figshare.7512992.v1
title: Chronic stress associated to contraceptives use on the progression of ligature-induced periodontitis in rats

description: Abstract Introduction Contraceptives are widely used by women in much of the world. The stress associated with their use can lead adverse responses in the body. Objective The aim of this paper was to evaluate the effects of chronic stress associated with contraceptive use on the progression of ligature-induced periodontitis in female Lewis rats. Material and method Therefore, forty rats were randomly divided into 5 groups (n = 8): contraceptive and ligature group (CG); stress and ligature group (SG); contraceptive, stress and ligature group (CSG); ligature group (LG); and control group (CtrlG). An injectable contraceptive was administered to the CG and CSG groups at the beginning of the experiment. On the following day, periodontitis was induced in the CG, SG, LG and CSG groups by placing ligatures on the upper-right second molar. On the third day, the SG and the CSG were subjected to a chronic stress model using physical restraint and cold exposure. After 60 days, the animals were euthanized and submitted to histometric measurements. Two parameters were considered: histological attachment loss (CEJ-PL) and bone loss (CEJ-BC). Regarding CEJ-PL/CEJ-BC. Result The results indicated that the CtrlG (CEJ-PL 0.10 ± 0.00; CEJ-BC 0.34 ± 0.02) showed the lowest values (p&lt;0.05). The SG group (CEJ-PL 0.90 ± 0.24; CEJ-BC 1.30 ± 0.28) presented higher values that were significantly different (p&lt;0.05) from the results of the LG. The other groups exhibited similar statistical results (p&gt;0.05). Conclusion The present results do not allow an assessment of the susceptibility of animals to ligature-induced periodontitis.
DOI: 10.6084/m9.figshare.11997522
title: Effect of a Circular Ring on the Side Force of a Cone-Cylinder Body

description: ABSTRACT: This paper aims to investigate the side force on a cone-cylinder geometry at different angles of attack (α) by adopting experiments and computations. The cone-cylinder configuration had a length to diameter ratio (L/D) of 10, and a base diameter (D) of 25 mm. The nose shape had a fineness ratio of approximately 3. Results indicated that the side force increases with the increasing of the angle of attack. A circular ring was used to reduce the side force at different angles of attack. Using a smaller height ring (2% of local diameter) in the initial portion of the body did not reduce the side force significantly at lower angles of attack. However, a ring with larger height (5% of local diameter) placed at 2.5 times the diameter of the body from the tip reduced the side force at almost all the angles of attack.
DOI: 10.6084/m9.figshare.7508402
title: INFLUENCE OF IRRIGATION LEVELS AND PLANT DENSITY ON "SECOND-SEASON" MAIZE

description: ABSTRACT This study assessed the effect of different irrigation levels and plant densities on maize crops cultivated during the second season in the Western Border region of the State of Rio Grande do Sul. This work was conducted at the Federal Institute of Farroupilha - Alegrete Campus/RS - between January and June 2014. Treatments were arranged in a completely randomized 5 × 4 factorial design, with 3 replicates each. Irrigation of fixed amounts of water that were based on the evapotranspiration of the culture (Etc): 0, 50, 75, 100, and 125% of Etc were applied at 5-day intervals. Four densities of plants were defined (4, 7, 10, and 13 plants m-2). We assessed number of maize ears per plant, number of grains per ear, aboveground dry matter, mass of 100 grains, harvest index, and grain productivity. The number of grains per ear, mass of 100 grains, and grain yield were influenced by irrigation levels. Plant density and water depth influenced the number of grains per ear, the mass of 100 grains, and grain productivity. The highest yield of winter maize grain was achieved with a combination of 13 plants per m-2 and an irrigation level of 100% of Etc. Specific densities of plants maximized the yield of maize at each irrigation level, demonstrating that choice of plant density is a critical variable in the second crop of maize, and significantly influences the components of production.