cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6388094
title: Evaluation of the transition process from ISO 9001:2008 to ISO 9001:2015: a study focused on chemical companies in the State of Rio Grande do Sul, Brazil

description: Abstract The ISO 9001 norm has been widely used in the implementation and maintenance of Quality Management Systems (QMS) in Brazil and all over the world. This study aims to identify the chemical companies’ perceptions of the ISO 9001 transition: version 2008 to version 2015, in the State of Rio Grande do Sul. In this context, the methodology used was a survey research with a structured questionnaire based on the 5-points Likert’s scale. This questionnaire was sent to all chemical companies certified in ISO 9001, located in the state of Rio Grande do Sul. In addition, quality managers of three of these companies replied to semi-structured interviews with open questions. In general, the companies agree with the changes brought by the new version of the norm and believe it to be beneficial to the organization. Although some companies haven’t made much towards this update and point out difficulties in implementing the new norm’s requirements, most of the companies consider the ISO 9001:2015 better than its previous version. It can be asserted that the companies that choose to adopt these modifications due to concerns about a continuous improvement of the QMS will have greater benefits than those companies that choose to implement the modifications only to keep their certificate valid.
DOI: 10.6084/m9.figshare.6388094.v1
title: Evaluation of the transition process from ISO 9001:2008 to ISO 9001:2015: a study focused on chemical companies in the State of Rio Grande do Sul, Brazil

description: Abstract The ISO 9001 norm has been widely used in the implementation and maintenance of Quality Management Systems (QMS) in Brazil and all over the world. This study aims to identify the chemical companies’ perceptions of the ISO 9001 transition: version 2008 to version 2015, in the State of Rio Grande do Sul. In this context, the methodology used was a survey research with a structured questionnaire based on the 5-points Likert’s scale. This questionnaire was sent to all chemical companies certified in ISO 9001, located in the state of Rio Grande do Sul. In addition, quality managers of three of these companies replied to semi-structured interviews with open questions. In general, the companies agree with the changes brought by the new version of the norm and believe it to be beneficial to the organization. Although some companies haven’t made much towards this update and point out difficulties in implementing the new norm’s requirements, most of the companies consider the ISO 9001:2015 better than its previous version. It can be asserted that the companies that choose to adopt these modifications due to concerns about a continuous improvement of the QMS will have greater benefits than those companies that choose to implement the modifications only to keep their certificate valid.
DOI: 10.6084/m9.figshare.6388088
title: Value perception in the consumption of convergent technology products with green attributes

description: Abstract Due to the growing concerns about environmental issues, quality of life and well-being, consumers are considering the importance of obtaining eco-friendly products or devices with green functionality features. This scenario led to the investigation of the influence of green features on the intention to purchase of convergent products, with hedonic and utilitarian bases. We developed a quantitative experimental research, with application of online questionnaires at a University in the State of Pará, aiming to study the smartphones and their different usability. The results indicate increased intention of purchase of devices with “green” features on both a hedonic and a utilitarian basis. However, the addition of “green” features was more significant in the hedonic base, suggesting a utilitarian justification, reducing the guilty feeling inherent to the acquisition of hedonic products.
DOI: 10.6084/m9.figshare.6388088.v1
title: Value perception in the consumption of convergent technology products with green attributes

description: Abstract Due to the growing concerns about environmental issues, quality of life and well-being, consumers are considering the importance of obtaining eco-friendly products or devices with green functionality features. This scenario led to the investigation of the influence of green features on the intention to purchase of convergent products, with hedonic and utilitarian bases. We developed a quantitative experimental research, with application of online questionnaires at a University in the State of Pará, aiming to study the smartphones and their different usability. The results indicate increased intention of purchase of devices with “green” features on both a hedonic and a utilitarian basis. However, the addition of “green” features was more significant in the hedonic base, suggesting a utilitarian justification, reducing the guilty feeling inherent to the acquisition of hedonic products.
DOI: 10.6084/m9.figshare.6388082
title: GAS EXCHANGE IN ‘POME’ BANANA PLANTS GROWN UNDER DIFFERENT IRRIGATION SYSTEMS

description: Abstract This study aimed to evaluate Pome type bananas grown under different irrigation systems. Seventy-two treatments were used in a factorial 3×2×12 scheme, where factors consisted of three irrigation systems (under-tree sprinkling, micro-sprinkling, and dripping), two cultivars (‘Prata-Anã‘ and ‘BRS Platina’), and twelve evaluation periods (months). The treatments were arranged in a completely randomized design with five repetitions. During the third production cycle, plant phytotechnical and physiological traits were evaluated in different months at five different times of the day. The results showed no significant interactions between cultivars and irrigation systems. All the assessed traits varied for each irrigation system, except for plant yield. The banana plants presented higher vigor and a larger number of hands when grown under conventional sprinkling and micro-aspersion systems, regardless of the cultivar. The cultivar ‘Prata-Anã‘ has larger leaf areas and number of hands, regardless of the irrigation system. Moreover, plants irrigated by dripping exhibited higher leaf temperatures, higher transpiration rates, and lower instant water-use efficiency. When irrigated by micro-sprinklers, the plants displayed greater water-use efficiency. As leaf temperature rose, perspiration increased linearly, while the instant water-use efficiency decreased linearly.
DOI: 10.6084/m9.figshare.6388079
title: Acute effects of strength exercise with blood flow restriction on vascular function of young healthy males

description: Abstract Background Strength training with blood flow restriction (STBFR) provokes similar neuromuscular adaptations to traditional strength training using low training loads. However, there is a need for better understanding of the repercussions for antioxidant parameters and vascular function. Objectives: The objective of the present study was to investigate the effects of a session of low intensity strength training with blood flow restriction, compared with high intensity and low intensity strength training without blood flow restriction, on the levels of nitric oxide products and antioxidant enzyme activity in healthy young men. Methods: Eleven young men performed three strength exercise sessions: low intensity with blood flow restriction (LIBFR), high intensity (HI), and low intensity (LI). Activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD) was assessed and metabolites of nitric oxide (NOx) were assayed before and after each session. Results: There were no changes to NOx plasma levels under the different exercise conditions (p &gt; 0.05). However, SOD activity exhibited a significant reduction after the LIBFR condition (p &lt; 0.05), while CAT activity reduced significantly after the LI condition (p &lt; 0.05). Conclusions: The results of this study suggest that one session of low intensity strength training with blood flow restriction does not reduce bioavailability of nitric oxide or induce redox imbalance in healthy young men.
DOI: 10.6084/m9.figshare.6388082.v1
title: GAS EXCHANGE IN ‘POME’ BANANA PLANTS GROWN UNDER DIFFERENT IRRIGATION SYSTEMS

description: Abstract This study aimed to evaluate Pome type bananas grown under different irrigation systems. Seventy-two treatments were used in a factorial 3×2×12 scheme, where factors consisted of three irrigation systems (under-tree sprinkling, micro-sprinkling, and dripping), two cultivars (‘Prata-Anã‘ and ‘BRS Platina’), and twelve evaluation periods (months). The treatments were arranged in a completely randomized design with five repetitions. During the third production cycle, plant phytotechnical and physiological traits were evaluated in different months at five different times of the day. The results showed no significant interactions between cultivars and irrigation systems. All the assessed traits varied for each irrigation system, except for plant yield. The banana plants presented higher vigor and a larger number of hands when grown under conventional sprinkling and micro-aspersion systems, regardless of the cultivar. The cultivar ‘Prata-Anã‘ has larger leaf areas and number of hands, regardless of the irrigation system. Moreover, plants irrigated by dripping exhibited higher leaf temperatures, higher transpiration rates, and lower instant water-use efficiency. When irrigated by micro-sprinklers, the plants displayed greater water-use efficiency. As leaf temperature rose, perspiration increased linearly, while the instant water-use efficiency decreased linearly.
DOI: 10.6084/m9.figshare.6388079.v1
title: Acute effects of strength exercise with blood flow restriction on vascular function of young healthy males

description: Abstract Background Strength training with blood flow restriction (STBFR) provokes similar neuromuscular adaptations to traditional strength training using low training loads. However, there is a need for better understanding of the repercussions for antioxidant parameters and vascular function. Objectives: The objective of the present study was to investigate the effects of a session of low intensity strength training with blood flow restriction, compared with high intensity and low intensity strength training without blood flow restriction, on the levels of nitric oxide products and antioxidant enzyme activity in healthy young men. Methods: Eleven young men performed three strength exercise sessions: low intensity with blood flow restriction (LIBFR), high intensity (HI), and low intensity (LI). Activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD) was assessed and metabolites of nitric oxide (NOx) were assayed before and after each session. Results: There were no changes to NOx plasma levels under the different exercise conditions (p &gt; 0.05). However, SOD activity exhibited a significant reduction after the LIBFR condition (p &lt; 0.05), while CAT activity reduced significantly after the LI condition (p &lt; 0.05). Conclusions: The results of this study suggest that one session of low intensity strength training with blood flow restriction does not reduce bioavailability of nitric oxide or induce redox imbalance in healthy young men.
DOI: 10.6084/m9.figshare.6388073
title: Continuous Synthesis of a Green Fuel Additive Mixture with Highest Quantities of Solketalacetin and Solketal and Lowest Amount of Diacetin from Biodiesel-Derived Glycerol

description: This work presents a continuous, easy-to-scale-up system for glycerol conversion to a valuable fuel additive mixture such as solketalacetin ((2,2-dimethyl-1,3-dioxolan-4-yl)methyl acetate), solketal and minimum amount of diacetin with no byproducts. A two-stage reaction was conducted to synthesize the mixture. At first, glycerol was reacted with acetic acid in a continuous system to synthesize monoacetin using a small plug flow reactor and central composite design to optimize the variables related to monoacetin synthesis. Finally, an acetic acid:glycerol mole ratio of 3.7:1, a temperature of 79 °C, a flow rate of 0.9 mL min-1, and a pressure of 1 bar were determined as the optimum conditions. At the optimum condition, predicted and experimental yields of monoacetin were 63 and 62%, respectively. In the next stage, monoacetin and the residual glycerol were reacted with acetone to obtain a mixture of solketalacetin, solketal, and diacetin with the mole percentage of 62, 30, and 8%, respectively.
DOI: 10.6084/m9.figshare.6388073.v1
title: Continuous Synthesis of a Green Fuel Additive Mixture with Highest Quantities of Solketalacetin and Solketal and Lowest Amount of Diacetin from Biodiesel-Derived Glycerol

description: This work presents a continuous, easy-to-scale-up system for glycerol conversion to a valuable fuel additive mixture such as solketalacetin ((2,2-dimethyl-1,3-dioxolan-4-yl)methyl acetate), solketal and minimum amount of diacetin with no byproducts. A two-stage reaction was conducted to synthesize the mixture. At first, glycerol was reacted with acetic acid in a continuous system to synthesize monoacetin using a small plug flow reactor and central composite design to optimize the variables related to monoacetin synthesis. Finally, an acetic acid:glycerol mole ratio of 3.7:1, a temperature of 79 °C, a flow rate of 0.9 mL min-1, and a pressure of 1 bar were determined as the optimum conditions. At the optimum condition, predicted and experimental yields of monoacetin were 63 and 62%, respectively. In the next stage, monoacetin and the residual glycerol were reacted with acetone to obtain a mixture of solketalacetin, solketal, and diacetin with the mole percentage of 62, 30, and 8%, respectively.
DOI: 10.6084/m9.figshare.6388070
title: Alternative class III distributed polysomnography system

description: Abstract Introduction Impairment of sleep quality directly increases the risk of heart attack, obesity, and stroke, among other conditions, which makes polysomnography (PSG) an important public health tool. However, the inherent problems with PSG render the correct diagnosis of sleep diseases a difficult task. As a novel alternative to the class II PSG system, this work presents a distributed system composed of three modules, which together are capable of the simultaneous monitoring of environmental variables and patient signals. This system could reduce the distress of a PSG exam in certain cases, dismiss the need for an overnight sleep in a healthcare/sleep centre, and facilitate self-setup and internet-based diagnosis. Methods Hardware and software capable of synchronously monitoring, processing and logging into a µSD card environmental parameters (temperature, humidity, visible light intensity and audible noise level) and directly measured patient signals (electrocardiogram, electrooculogram, and body and limb posture) were designed and implemented. Results A novel alternative to the class III PSG system was demonstrated with independent boards capable of operating for more than 16 hours powered by a 750 mAh/3.7 V battery with 0.003% data loss during preliminary PSG exams. Additionally, a computer-based library capable of reading, decoding, estimating respiration through ECG, and calculating the heart rate was developed and described. Conclusion This article contributes to PSG research through the development of a new PSG system and the improvement of patient comfort. All software and hardware developed are fully open source and available on GitHub.
DOI: 10.6084/m9.figshare.6388067
title: Genres in systemic-functional theory

description: ABSTRACT The aim of this study is to present the theoretical perspective on genre and register of the so-called ‘Sydney School’; (Martin 1992, Martin and Eggins 2000, Martin and Rose 2008, Rose and Martin 2012), because it is a powerful theoretical and methodological tool for analysis of texts. This approach is based on Systemic-Functional Linguistics (LSF), whose origin dates back to the concepts of context and register defined by Halliday, Macintosh and Strevens (1964), who influenced Martin (1992) in conceiving another perspective for the study of context, interpreting register differently from the notion established by Halliday. I then present the different interpretations of the terms ‘context’, ‘register’ and ‘genre’ within the systemic-functional paradigm, based on the multifunctional language theory developed by Halliday (1978, 1985, 1991, 2002, 2005) and in the studies on context, text, register and genre developed by Hasan (1973, 1995, 2004, 2009), Matthiessen (1993, 2013) e Martin (1992). Genres and registers are terms used by systemicists to refer to the meaning and function of variation between texts in the contextual dimension, as well as how texts resemble each other and are distinguished by expressing linguistic and discursively traces of the social context in which they are used.
DOI: 10.6084/m9.figshare.6388067.v1
title: Genres in systemic-functional theory

description: ABSTRACT The aim of this study is to present the theoretical perspective on genre and register of the so-called ‘Sydney School’; (Martin 1992, Martin and Eggins 2000, Martin and Rose 2008, Rose and Martin 2012), because it is a powerful theoretical and methodological tool for analysis of texts. This approach is based on Systemic-Functional Linguistics (LSF), whose origin dates back to the concepts of context and register defined by Halliday, Macintosh and Strevens (1964), who influenced Martin (1992) in conceiving another perspective for the study of context, interpreting register differently from the notion established by Halliday. I then present the different interpretations of the terms ‘context’, ‘register’ and ‘genre’ within the systemic-functional paradigm, based on the multifunctional language theory developed by Halliday (1978, 1985, 1991, 2002, 2005) and in the studies on context, text, register and genre developed by Hasan (1973, 1995, 2004, 2009), Matthiessen (1993, 2013) e Martin (1992). Genres and registers are terms used by systemicists to refer to the meaning and function of variation between texts in the contextual dimension, as well as how texts resemble each other and are distinguished by expressing linguistic and discursively traces of the social context in which they are used.
DOI: 10.6084/m9.figshare.6388061
title: Experimental study of solid RC slabs strengthened on the upper surface

description: Abstract The current study presents the results of tests conducted in 5 reinforced concrete slabs (415 cm x 415 cm x 7 cm) in order to experimentally check the possibility of reinforcing their upper surface, as well as to assess the adhesion between the old and the reinforcing concrete layers in the slab. The main variables were the concrete and reinforcement strength deficiencies. Reference slab “L1” was tested until reaching the failure load, whereas the others were tested until reaching certain load limit, reinforced and retested until reaching the failure load. All slabs failed under bending. The strengthening increased the failure load by 30% in slabs reinforced at minimum reinforcement rate when they were compared to similar non-reinforced slabs, regardless of the original concrete strength. None of the tests conducted in the reinforced slabs showed detachments or evidence of adhesion loss between the old and reinforcing concretes.
DOI: 10.6084/m9.figshare.6388061.v1
title: Experimental study of solid RC slabs strengthened on the upper surface

description: Abstract The current study presents the results of tests conducted in 5 reinforced concrete slabs (415 cm x 415 cm x 7 cm) in order to experimentally check the possibility of reinforcing their upper surface, as well as to assess the adhesion between the old and the reinforcing concrete layers in the slab. The main variables were the concrete and reinforcement strength deficiencies. Reference slab “L1” was tested until reaching the failure load, whereas the others were tested until reaching certain load limit, reinforced and retested until reaching the failure load. All slabs failed under bending. The strengthening increased the failure load by 30% in slabs reinforced at minimum reinforcement rate when they were compared to similar non-reinforced slabs, regardless of the original concrete strength. None of the tests conducted in the reinforced slabs showed detachments or evidence of adhesion loss between the old and reinforcing concretes.
DOI: 10.6084/m9.figshare.6388043
title: In vitro Evaluation of Oxidative Stress Caused by Fine Particles (PM2.5) Exhausted from Heavy-Duty Vehicles Using Diesel/Biodiesel Blends under Real World Conditions

description: In this work, the redox activity of fine diesel/biodiesel particulate matter (PM2.5) was studied in order to approach its toxicity from reactive oxygen species, due to adverse effects it may cause to human health. The oxidative potential was measured by the dithiothreitol (DTT) assay in order to study the relative contribution of water-soluble transition metals, polycyclic aromatic compounds (PAH), nitro-PAH, and quinones. It was analyzed a total of 24 samples collected from primarily diesel/biodiesel-exhausted particles from buses. The rate concentrations of PM2.5 redox activity ranged 0.020-0.069 nmol min-1 μg-1, with median at 0.040 nmol min-1 μg-1 (on average, 0.042 ± 0.005 nmol min-1 μg-1 for morning, 0.033 ± 0.007 nmol min-1 μg-1 for afternoon and 0.045 ± 0.009 nmol min-1 μg-1 for night). The transition metals appear to dominate the DTT response, since they were responsible up to 89% of redox activity measured in the samples. Apparently, the metal fraction contained in PM2.5 demonstrated a greater ability to catalyze reactions that promote the formation of reactive oxygen species when compared to organic compounds. It was observed that the oxidative potential of PM2.5 particles emitted from diesel/biodiesel (B7) is similar to diesel-emitted particles.
DOI: 10.6084/m9.figshare.6388043.v1
title: In vitro Evaluation of Oxidative Stress Caused by Fine Particles (PM2.5) Exhausted from Heavy-Duty Vehicles Using Diesel/Biodiesel Blends under Real World Conditions

description: In this work, the redox activity of fine diesel/biodiesel particulate matter (PM2.5) was studied in order to approach its toxicity from reactive oxygen species, due to adverse effects it may cause to human health. The oxidative potential was measured by the dithiothreitol (DTT) assay in order to study the relative contribution of water-soluble transition metals, polycyclic aromatic compounds (PAH), nitro-PAH, and quinones. It was analyzed a total of 24 samples collected from primarily diesel/biodiesel-exhausted particles from buses. The rate concentrations of PM2.5 redox activity ranged 0.020-0.069 nmol min-1 μg-1, with median at 0.040 nmol min-1 μg-1 (on average, 0.042 ± 0.005 nmol min-1 μg-1 for morning, 0.033 ± 0.007 nmol min-1 μg-1 for afternoon and 0.045 ± 0.009 nmol min-1 μg-1 for night). The transition metals appear to dominate the DTT response, since they were responsible up to 89% of redox activity measured in the samples. Apparently, the metal fraction contained in PM2.5 demonstrated a greater ability to catalyze reactions that promote the formation of reactive oxygen species when compared to organic compounds. It was observed that the oxidative potential of PM2.5 particles emitted from diesel/biodiesel (B7) is similar to diesel-emitted particles.