cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.8092724.v1
title: Morphometric responses and tolerance of pomegranate seedlings irrigated with saline water

description: ABSTRACT Information on the production of seedlings and initial growth of pomegranate irrigated with saline water is scarce in the Brazilian semi-arid region. The objective of this study was to assess the effect of irrigation water salinity levels on the growth and tolerance of pomegranate seedlings. The experiment was conducted in a greenhouse, located at the Federal Rural University of the Semi-Arid Region, Mossoró, RN, Brazil. A randomized block design with five treatments [electrical conductivities of irrigation water (ECw) of 0.6, 3.0, 6.0, 9.0, 12.0 dS m-1] and five replicates, with three plants per plot, was used. At 120 days after sowing, the following characteristics were evaluated: shoot, root and total lengths (cm); stem diameter (mm), dry mass of stem, leaves, root system and total (g); ratio between root and shoot dry mass; Dickson quality index and salinity tolerance. Growth and dry biomass accumulation in pomegranate seedlings were compromised with increased salinity in irrigation water, but with a lower intensity when subjected up to EC of 6.0 dS m-1. Regarding the criterion of evaluation of tolerance to salinity, pomegranate seedlings were moderately tolerant to salinity.
DOI: 10.6084/m9.figshare.8092721.v1
title: THE TOPPLING OF AN IRRIGATION CENTER PIVOT SUBMITTED TO WIND ACTION EFFECTS

description: ABSTRACT This research aims to improve the study about the stability of truss structures used in pivot irrigation, widely used due to the growing demand for food production, when submitted to wind effects. Specifically, it aims to verify the maximum wind speed supported by an irrigation center pivot structure when submitted to the load effects caused by wind gusts perpendicular to the equipment. In order to determine these forces and their effects on the irrigation equipment, computational numerical investigations were carried out using finite element bar models validated by measuring the natural frequency of the equipment in the field. A span was designed based on the existing standards in Brazil and the dynamic response of the structure was examined under the effects of wind gusts. Models of the Brazilian standard NBR 6123/88 for structures submitted to wind effects were used in this study. The studied irrigation equipment supports wind gusts of up to 115 km/h applied perpendicularly, with a duration of 3 s, before generating toppling.
DOI: 10.6084/m9.figshare.8092706
title: Electroacoustic verification of frequency modulation systems in cochlear implant users

description: Abstract Introduction: The frequency modulation system is a device that helps to improve speech perception in noise and is considered the most beneficial approach to improve speech recognition in noise in cochlear implant users. According to guidelines, there is a need to perform a check before fitting the frequency modulation system. Although there are recommendations regarding the behavioral tests that should be performed at the fitting of the frequency modulation system to cochlear implant users, there are no published recommendations regarding the electroacoustic test that should be performed. Objective: Perform and determine the validity of an electroacoustic verification test for frequency modulation systems coupled to different cochlear implant speech processors. Methods: The sample included 40 participants between 5 and 18 year's users of four different models of speech processors. For the electroacoustic evaluation, we used the Audioscan Verifit device with the HA-1 coupler and the listening check devices corresponding to each speech processor model. In cases where the transparency was not achieved, a modification was made in the frequency modulation gain adjustment and we used the Brazilian version of the "Phrases in Noise Test" to evaluate the speech perception in competitive noise. Results: It was observed that there was transparency between the frequency modulation system and the cochlear implant in 85% of the participants evaluated. After adjusting the gain of the frequency modulation receiver in the other participants, the devices showed transparency when the electroacoustic verification test was repeated. It was also observed that patients demonstrated better performance in speech perception in noise after a new adjustment, that is, in these cases; the electroacoustic transparency caused behavioral transparency. Conclusion: The electroacoustic evaluation protocol suggested was effective in evaluation of transparency between the frequency modulation system and the cochlear implant. Performing the adjustment of the speech processor and the frequency modulation system gain are essential when fitting this device.
DOI: 10.6084/m9.figshare.8092709
title: CHEMICALLY TREATED GLUED LAMINATED PARICÁ TIMBER (Schizolobium parahyba var. amazonicum)

description: ABSTRACT In the production of glue-laminated timber (GLT), boards derived from planted forest wood with easy workability are glued on top of one another. The main objective of the present work was to evaluate the performance of paricá timber GLT beams (5 × 10 cm) on GLT. Three procedures were performed: (1) GLT beams (5 × 10 cm) were produced using natural lamellae without chemical preservatives; (2) the individual lamellae (2.5 × 5 cm) were chemically treated, and then glued together; and (3) the beams formed from the glued natural lamellae (5 × 10 cm) were treated chemically. The positions of lamellae on the beams were determined by their modulus of elasticity values (MOE), which were estimated by a non-destructive bending test with a three-point load. The analytical bends, determined by the homogenized section method, and the experimental bends, measured by the four-point bending test, were compared. The differences between the bends were statistically evaluated, and it was found that the experimental bend (21.65 mm) was less than the analytical bend (34.02 mm). There was no significant loss of shear strength or MOE. The axial strength of the chemically untreated beams (49.18 MPa) was significantly higher than that of the untreated beams fabricated from natural lamellae (40.48 MPa). The results indicate that the gluing of treated lamellae does not affect beam performance.
DOI: 10.6084/m9.figshare.8092703
title: Land use dynamics in the Brazilian Cerrado in the period from 2002 to 2013

description: Abstract: The objective of this work was to analyze land use dynamics in the Brazilian Cerrado region from 2002 to 2013. This analysis was based on the interpretation of Landsat satellite images carried out by the projects Projeto de Conservação e Utilização Sustentável da Diversidade Biológica Brasileira (Probio) and TerraClass Cerrado 2013, both coordinated by Ministério do Meio Ambiente. In 2002, 38.9% of the Cerrado was covered by some type of anthropic activity. In 2013, this percentage increased to 43.4%. One of the main highlights is the emergence of a new agricultural frontier in the northern region of the study area, known as Matopiba.
DOI: 10.6084/m9.figshare.8092709.v1
title: CHEMICALLY TREATED GLUED LAMINATED PARICÁ TIMBER (Schizolobium parahyba var. amazonicum)

description: ABSTRACT In the production of glue-laminated timber (GLT), boards derived from planted forest wood with easy workability are glued on top of one another. The main objective of the present work was to evaluate the performance of paricá timber GLT beams (5 × 10 cm) on GLT. Three procedures were performed: (1) GLT beams (5 × 10 cm) were produced using natural lamellae without chemical preservatives; (2) the individual lamellae (2.5 × 5 cm) were chemically treated, and then glued together; and (3) the beams formed from the glued natural lamellae (5 × 10 cm) were treated chemically. The positions of lamellae on the beams were determined by their modulus of elasticity values (MOE), which were estimated by a non-destructive bending test with a three-point load. The analytical bends, determined by the homogenized section method, and the experimental bends, measured by the four-point bending test, were compared. The differences between the bends were statistically evaluated, and it was found that the experimental bend (21.65 mm) was less than the analytical bend (34.02 mm). There was no significant loss of shear strength or MOE. The axial strength of the chemically untreated beams (49.18 MPa) was significantly higher than that of the untreated beams fabricated from natural lamellae (40.48 MPa). The results indicate that the gluing of treated lamellae does not affect beam performance.
DOI: 10.6084/m9.figshare.8092706.v1
title: Electroacoustic verification of frequency modulation systems in cochlear implant users

description: Abstract Introduction: The frequency modulation system is a device that helps to improve speech perception in noise and is considered the most beneficial approach to improve speech recognition in noise in cochlear implant users. According to guidelines, there is a need to perform a check before fitting the frequency modulation system. Although there are recommendations regarding the behavioral tests that should be performed at the fitting of the frequency modulation system to cochlear implant users, there are no published recommendations regarding the electroacoustic test that should be performed. Objective: Perform and determine the validity of an electroacoustic verification test for frequency modulation systems coupled to different cochlear implant speech processors. Methods: The sample included 40 participants between 5 and 18 year's users of four different models of speech processors. For the electroacoustic evaluation, we used the Audioscan Verifit device with the HA-1 coupler and the listening check devices corresponding to each speech processor model. In cases where the transparency was not achieved, a modification was made in the frequency modulation gain adjustment and we used the Brazilian version of the "Phrases in Noise Test" to evaluate the speech perception in competitive noise. Results: It was observed that there was transparency between the frequency modulation system and the cochlear implant in 85% of the participants evaluated. After adjusting the gain of the frequency modulation receiver in the other participants, the devices showed transparency when the electroacoustic verification test was repeated. It was also observed that patients demonstrated better performance in speech perception in noise after a new adjustment, that is, in these cases; the electroacoustic transparency caused behavioral transparency. Conclusion: The electroacoustic evaluation protocol suggested was effective in evaluation of transparency between the frequency modulation system and the cochlear implant. Performing the adjustment of the speech processor and the frequency modulation system gain are essential when fitting this device.
DOI: 10.6084/m9.figshare.8092703.v1
title: Land use dynamics in the Brazilian Cerrado in the period from 2002 to 2013

description: Abstract: The objective of this work was to analyze land use dynamics in the Brazilian Cerrado region from 2002 to 2013. This analysis was based on the interpretation of Landsat satellite images carried out by the projects Projeto de Conservação e Utilização Sustentável da Diversidade Biológica Brasileira (Probio) and TerraClass Cerrado 2013, both coordinated by Ministério do Meio Ambiente. In 2002, 38.9% of the Cerrado was covered by some type of anthropic activity. In 2013, this percentage increased to 43.4%. One of the main highlights is the emergence of a new agricultural frontier in the northern region of the study area, known as Matopiba.
DOI: 10.6084/m9.figshare.8092694
title: Regular exercise, overweight/obesity and sedentary lifestyle cause adaptive changes in thiol–disulfide homeostasis

description: Abstract: Dynamic thiol–disulfide homeostasis is considered to have critical roles in maintenance of physiological functioning. We aimed to reveal whether there is any specific aberration in thiol–disulfide homeostasis in three distinct categories of individuals, including those who 1) exercise regularly (fitness group), 2) have a sedentary lifestyle (sedentary group) and 3) are overweight or obese (overweight/obese group). 72 male individuals were included in the study, 21 of whom were in fitness group, 28 of whom were overweight or obese and 23 of whom had a sedentary lifestyle. Plasma native thiol (-SH) and total thiol [(-SH) + (-S-S-)] levels were quantitatively determined. Total thiol levels in sedentary group were significantly lower than those in overweight/obese (p&lt;0.05) and fitness groups (p&lt;0.001). Also, disulfide values in fitness group were significantly higher than those in sedentary and overweight/obese groups (p&lt;0.005, p&lt;0.05). On the other hand, disulfide level, reduced and oxidized thiol ratios and oxidation/reduction ratio in fitness group differed significantly from the other groups (p&lt;0.05). Thiol–disulfide homeostasis varies depending on lifestyle. The results of our study indicate that higher total thiol and disulfide levels are conspicuously distinctive features of thiol–disulfide homeostasis in individuals exercising regularly.
DOI: 10.6084/m9.figshare.8092682
title: DETERMINATION OF METALS PRESENT IN MAKE-UP SHADOWS BY UV-VIS SPECTROPHOTOMETRY: A CONTEXTUAL EXPERIMENT IN HIGHER EDUCATION

description: Metallic oxides are used in cosmetic shadows formulations in order to highlight the area around the eyes, with different colors. Due to the close proximity to the eye mucosa, these products are a potential source of metal intoxication in human body. Based in this fact, several analytical methods to quantify metals in cosmetic shadows have been proposed in the literature. This paper, propose a contextual experiment to investigated the presence of Al3+, Fe3+ and Cu2+ using UV-VIS spectrophotometric and complexation reactions in solvent mixtures to generate cromophore species. These experiments have the potential to insert a contextual discussion in chemistry and pharmaceutical graduation courses, making a meaningful experimentation in the formative attribute of these courses.
DOI: 10.6084/m9.figshare.8092694.v1
title: Regular exercise, overweight/obesity and sedentary lifestyle cause adaptive changes in thiol–disulfide homeostasis

description: Abstract: Dynamic thiol–disulfide homeostasis is considered to have critical roles in maintenance of physiological functioning. We aimed to reveal whether there is any specific aberration in thiol–disulfide homeostasis in three distinct categories of individuals, including those who 1) exercise regularly (fitness group), 2) have a sedentary lifestyle (sedentary group) and 3) are overweight or obese (overweight/obese group). 72 male individuals were included in the study, 21 of whom were in fitness group, 28 of whom were overweight or obese and 23 of whom had a sedentary lifestyle. Plasma native thiol (-SH) and total thiol [(-SH) + (-S-S-)] levels were quantitatively determined. Total thiol levels in sedentary group were significantly lower than those in overweight/obese (p&lt;0.05) and fitness groups (p&lt;0.001). Also, disulfide values in fitness group were significantly higher than those in sedentary and overweight/obese groups (p&lt;0.005, p&lt;0.05). On the other hand, disulfide level, reduced and oxidized thiol ratios and oxidation/reduction ratio in fitness group differed significantly from the other groups (p&lt;0.05). Thiol–disulfide homeostasis varies depending on lifestyle. The results of our study indicate that higher total thiol and disulfide levels are conspicuously distinctive features of thiol–disulfide homeostasis in individuals exercising regularly.
DOI: 10.6084/m9.figshare.8092679
title: Estimate of the correction of sewage return rate in housing with rain water recovery systems: case study of Bauru city, SP, Brazil

description: ABSTRACT The return coefficient (f) of the sewage disposal system, which presents the ratio given by the volume of wastewater by the public supply system water volume is employed in the design and management of sanitary sewer collection system. The use of alternative sources, such as reuse and rainwater harvesting, are not considered by f. This article aims at applying the methodology to evaluate the potential release of rainwater in the collection and transportation of sanitary sewage system through recovery practices in Bauru city/SP. Variables were quoted by means of number of inhabitants. The statistical sampling procedure was applied for roof area determination. Results pointed out for f correction (f corrected ) values varying from 0,86 to 1.14 for Bauru city.
DOI: 10.6084/m9.figshare.8092670
title: TRANSNATIONAL YOUTH AND THE ROLE OF SOCIAL AND SOCIOCULTURAL REMITTANCES IN IDENTITY CONSTRUCTION

description: ABSTRACT Within a framework of transnationalism, and through narrative analysis using the Labovian model, this paper offers a discussion of the role of social and sociocultural remittances in the identity construction of transnational youth pursuing tertiary education in a public university in central-north Mexico. Through the exploration of oral data from semi-structured interviews the discussion aims at providing evidence of the ties and engagement that the participants develop on both sides of the Mexico-U.S. border through the exchange of goods, values, worldviews, attitudes, practices and linguistic elements, and how these impact their personal identity construction. The data presented in this paper come from a portion of qualitative corpora of a study in progress conducted by the author as a Ph.D project at Trinity College Dublin.
DOI: 10.6084/m9.figshare.8092661
title: LEARNING AND SENSE: BAKING ACTIVITY OF SETTLED WOMEN

description: ABSTRACT Purpose: This article is the result of an ethnographic study carried out in a settlement in the interior of Paraná, Brazil, which, from the perspective of the Social Learning Theory, aimed to understand how the learning of the productive baking activity of settled women occurs, serving as a path to a diversity of studies that seek to understand why certain practices emerge, institutionalize or are altered over time through an approach that sees them as a collective endeavor. Originality/value: In revealing the sense of the activity and participation of these women in the baking activity and their relation with learning in the enterprise, this study was justified for its contribution to the understanding of this learning, answering questions that can serve as reference to understand the reality of productive groups of this new economy. Design/methodology/approach: The proposals of Engeström (2009) and Nicolini (2009) formed a methodological package whose results showed the sense of activity as the search for an identity, the will to belong, factors generators of internal and external contradictions that extend the horizon of possibilities of the enterprise, leading to an expansionary cycle that causes the development of learning. Findings: The results revealed that in the system of activity, learning and participation are intrinsically related, associating the development of the group with participatory learning and the negotiation of meanings in the community in which it is inserted, linking past and future, individual and collective, new and existing knowledge, in a transformative movement of identities of the subjects and generator of a socially constructed knowledge.
DOI: 10.6084/m9.figshare.8092679.v1
title: Estimate of the correction of sewage return rate in housing with rain water recovery systems: case study of Bauru city, SP, Brazil

description: ABSTRACT The return coefficient (f) of the sewage disposal system, which presents the ratio given by the volume of wastewater by the public supply system water volume is employed in the design and management of sanitary sewer collection system. The use of alternative sources, such as reuse and rainwater harvesting, are not considered by f. This article aims at applying the methodology to evaluate the potential release of rainwater in the collection and transportation of sanitary sewage system through recovery practices in Bauru city/SP. Variables were quoted by means of number of inhabitants. The statistical sampling procedure was applied for roof area determination. Results pointed out for f correction (f corrected ) values varying from 0,86 to 1.14 for Bauru city.
DOI: 10.6084/m9.figshare.8092664
title: The influence of supervised training and of the Institutional Scholarship Program for Initial Teaching (PIBID) on the motivation of future teachers of Biology

description: Abstract In this paper, we examined how the formative experiences offered by an Undergraduate Program of Biological Sciences, with an emphasis on the Institutional Scholarship Program for Initial Teaching (Brazilian PIBID) and supervised training motivated students to pursue teaching careers in basic education. Thus, the Theory of Motivation of Self-Determination was adopted as a theoretical reference. The analyzed data come from autobiographical narratives by six undergraduate students, obtained from individual interviews, analyzed through Interpretative Analysis. In the results, we present and discuss the main elements that motivated or discouraged students in both experiences, resulting in the higher or lower interest of these students in teaching.
DOI: 10.6084/m9.figshare.8092670.v1
title: TRANSNATIONAL YOUTH AND THE ROLE OF SOCIAL AND SOCIOCULTURAL REMITTANCES IN IDENTITY CONSTRUCTION

description: ABSTRACT Within a framework of transnationalism, and through narrative analysis using the Labovian model, this paper offers a discussion of the role of social and sociocultural remittances in the identity construction of transnational youth pursuing tertiary education in a public university in central-north Mexico. Through the exploration of oral data from semi-structured interviews the discussion aims at providing evidence of the ties and engagement that the participants develop on both sides of the Mexico-U.S. border through the exchange of goods, values, worldviews, attitudes, practices and linguistic elements, and how these impact their personal identity construction. The data presented in this paper come from a portion of qualitative corpora of a study in progress conducted by the author as a Ph.D project at Trinity College Dublin.