cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6008030.v1
title: Mid-Term Results of Surgical Treatment of Atrial Fibrillation in Valvular Heart Disease Assesed by Speckle Tracking Echocardiography

description: Abstract Background: Atrial fibrillation frequently affects patients with valvular heart disease. Ablation of atrial fibrillation during valvular surgery is an alternative for restoring sinus rhythm. Objectives: This study aimed to evaluate mid-term results of successful atrial fibrillation surgical ablation during valvular heart disease surgery, to explore left atrium post-ablation mechanics and to identify predictors of recurrence. Methods: Fifty-three consecutive candidates were included. Eligibility criteria for ablation included persistent atrial fibrillation &lt;10 years and left atrium diameter &lt; 6.0 cm. Three months after surgery, echocardiogram, 24-hour Holter monitoring and electrocardiograms were performed in all candidates who maintained sinus rhythm (44 patients). Echo-study included left atrial deformation parameters (strain and strain rate), using 2-dimensional speckle-tracking echocardiography. Simultaneously, 30 healthy individuals (controls) were analyzed with the same protocol for left atrial performance. Significance was considered with a P value of &lt; 0.05. Results: After a mean follow up of 17 ± 2 months, 13 new post-operative cases of recurrent atrial fibrillation were identified. A total of 1,245 left atrial segments were analysed. Left atrium was severely dilated in the post-surgery group and, mechanical properties of left atrium did not recover after surgery when compared with normal values. Left atrial volume (≥ 64 mL/m2) was the only independent predictor of atrial fibrillation recurrence (p = 0.03). Conclusions: Left atrial volume was larger in patients with atrial fibrillation recurrence and emerges as the main predictor of recurrences, thereby improving the selection of candidates for this therapy; however, no differences were found regarding myocardial deformation parameters. Despite electrical maintenance of sinus rhythm, left atrium mechanics did not recover after atrial fibrillation ablation performed during valvular heart disease surgery.
DOI: 10.6084/m9.figshare.6008021
title: Compatibilization of recycled polypropylene and recycled poly (ethylene terephthalate) blends with SEBS-g-MA

description: Abstract The compatibilization of recycled PP/PET blend with high and low concentration (20 and 5 phr) of elastomer functionalized by maleic anhydride (SEBS-g-MA) was achieved. Recycled polypropylene from plastic industry and recycled PET from post-consumer bottles was used. PP/PET blends: 80:20 w/w, 50:50 w/w and 20:80 w/w were prepared in an internal mixer for mechanical properties, thermal properties, morphology and rheological properties. SEBS-g-MA promoted compatibilization of the PP/PET blends and improved their properties. With an increasing compatibilization level, the refinement of morphology was observed in the PET rich blend. Compatibilized blends showed negative deviation in the PET glass transition temperature related to neat PET, demonstrating that compatibilization was very successful. PET crystallization was accelerated in the blends due to PP presence that enhanced nucleation. It was found that the 50/50/20 blend showed huge potential for textile fiber application and that of 80/20/20 showed more intermediary properties than neat polymers.
DOI: 10.6084/m9.figshare.6008021.v1
title: Compatibilization of recycled polypropylene and recycled poly (ethylene terephthalate) blends with SEBS-g-MA

description: Abstract The compatibilization of recycled PP/PET blend with high and low concentration (20 and 5 phr) of elastomer functionalized by maleic anhydride (SEBS-g-MA) was achieved. Recycled polypropylene from plastic industry and recycled PET from post-consumer bottles was used. PP/PET blends: 80:20 w/w, 50:50 w/w and 20:80 w/w were prepared in an internal mixer for mechanical properties, thermal properties, morphology and rheological properties. SEBS-g-MA promoted compatibilization of the PP/PET blends and improved their properties. With an increasing compatibilization level, the refinement of morphology was observed in the PET rich blend. Compatibilized blends showed negative deviation in the PET glass transition temperature related to neat PET, demonstrating that compatibilization was very successful. PET crystallization was accelerated in the blends due to PP presence that enhanced nucleation. It was found that the 50/50/20 blend showed huge potential for textile fiber application and that of 80/20/20 showed more intermediary properties than neat polymers.
DOI: 10.6084/m9.figshare.6008018
title: Characterization of users at risk of developing diabetes: a cross-sectional study

description: ABSTRACT Objective: To characterize the profile of users at risk of developing diabetes mellitus type 2 according to sociodemographic and clinical variables. Method: Cross-sectional study, descriptive, quantitative approach conducted with 266 users of Basic Care. Inferential statistics analysis, calculating the crude prevalence ratio with confidence interval of 95% and Kruskal-Wallis test, and application of the multivariate technique simple Correspondence Analysis. Results: It was noted that 83.1% were women and 36.4% frequented the Family Health Unit from 1 to 5 years. Regarding the factors associated with diabetes mellitus type 2, 66.5% of the users were overweight and 77.9% were rated with central obesity. The great majority, 77.4%, did not practice physical activities and 21.1% had altered glycemia. Conclusion: The results showed that many risk factors for developing diabetes mellitus type 2 were among the population of the study.
DOI: 10.6084/m9.figshare.6008018.v1
title: Characterization of users at risk of developing diabetes: a cross-sectional study

description: ABSTRACT Objective: To characterize the profile of users at risk of developing diabetes mellitus type 2 according to sociodemographic and clinical variables. Method: Cross-sectional study, descriptive, quantitative approach conducted with 266 users of Basic Care. Inferential statistics analysis, calculating the crude prevalence ratio with confidence interval of 95% and Kruskal-Wallis test, and application of the multivariate technique simple Correspondence Analysis. Results: It was noted that 83.1% were women and 36.4% frequented the Family Health Unit from 1 to 5 years. Regarding the factors associated with diabetes mellitus type 2, 66.5% of the users were overweight and 77.9% were rated with central obesity. The great majority, 77.4%, did not practice physical activities and 21.1% had altered glycemia. Conclusion: The results showed that many risk factors for developing diabetes mellitus type 2 were among the population of the study.
DOI: 10.6084/m9.figshare.6008009
title: FSSC 22000 Packaging Implementation: a Plastics Industry Research

description: Abstract This paper presents the outcomes of an exploratory research carried out in companies, which are located in Brazil. They are FSSC-22000-certified food plastic packaging manufacturers. In order to identify the key aspects of the implementation process and certification, a questionnaire was developed and sent to twenty certified organizations. Out of them, eleven of which participating companies responded in a collaborative way. Based on the data obtained, improving competitiveness and customer retention were the reasons, which led the companies to seek the certification. However, the greatest difficulties were related to personnel, which presented technical and behavioral issues. In addition, it was noted that an overall satisfaction, derived from after-certification benefits, has been arisen in the companies. For instance, enhanced employee awareness, improved company's image and winning new customers, significantly contributing to their competitiveness, are some of the benefits found in this process.
DOI: 10.6084/m9.figshare.6008009.v1
title: FSSC 22000 Packaging Implementation: a Plastics Industry Research

description: Abstract This paper presents the outcomes of an exploratory research carried out in companies, which are located in Brazil. They are FSSC-22000-certified food plastic packaging manufacturers. In order to identify the key aspects of the implementation process and certification, a questionnaire was developed and sent to twenty certified organizations. Out of them, eleven of which participating companies responded in a collaborative way. Based on the data obtained, improving competitiveness and customer retention were the reasons, which led the companies to seek the certification. However, the greatest difficulties were related to personnel, which presented technical and behavioral issues. In addition, it was noted that an overall satisfaction, derived from after-certification benefits, has been arisen in the companies. For instance, enhanced employee awareness, improved company's image and winning new customers, significantly contributing to their competitiveness, are some of the benefits found in this process.
DOI: 10.6084/m9.figshare.6008006
title: Sex and spouse conditions influence symptoms of anxiety, depression, and posttraumatic stress disorder in both patients admitted to intensive care units and their spouses

description: ABSTRACT Objectives: To assess the effect of sex and spouse condition on symptoms of anxiety, depression and posttraumatic stress symptoms in patients and their spouses. Methods: A prospective study conducted in a 22-bed adult mixed intensive care unit in a tertiary hospital in São Paulo, Brazil. Patients and their spouses were enrolled 2 days after intensive care unit admission. They were interviewed while in the intensive care unit using the Hospital Anxiety and Depression Scale. At 30 and 90 days after intensive care unit discharge, they completed the Impact of Event Scale and Hospital Anxiety and Depression Scale by phone. Results: From March 2011 to March 2013, we analyzed 118 patients and their spouses. We observed that female sex was associated with higher scores than male sex was in terms of the anxiety Hospital Anxiety and Depression Scale - subscale (p = 0.032) and depression (p = 0.034). There was no association between sex and posttraumatic stress disorder symptoms. However, spouses had higher Impact of Event Scale points compared with patients (p = 0.001). Conclusions: Female sex was associated with anxiety and depression, and spouses were more vulnerable to post-traumatic stress symptoms than the patients were. Increasing age and a later time of assessment were also associated with lower scores on the Impact of Event Scale.
DOI: 10.6084/m9.figshare.6008006.v1
title: Sex and spouse conditions influence symptoms of anxiety, depression, and posttraumatic stress disorder in both patients admitted to intensive care units and their spouses

description: ABSTRACT Objectives: To assess the effect of sex and spouse condition on symptoms of anxiety, depression and posttraumatic stress symptoms in patients and their spouses. Methods: A prospective study conducted in a 22-bed adult mixed intensive care unit in a tertiary hospital in São Paulo, Brazil. Patients and their spouses were enrolled 2 days after intensive care unit admission. They were interviewed while in the intensive care unit using the Hospital Anxiety and Depression Scale. At 30 and 90 days after intensive care unit discharge, they completed the Impact of Event Scale and Hospital Anxiety and Depression Scale by phone. Results: From March 2011 to March 2013, we analyzed 118 patients and their spouses. We observed that female sex was associated with higher scores than male sex was in terms of the anxiety Hospital Anxiety and Depression Scale - subscale (p = 0.032) and depression (p = 0.034). There was no association between sex and posttraumatic stress disorder symptoms. However, spouses had higher Impact of Event Scale points compared with patients (p = 0.001). Conclusions: Female sex was associated with anxiety and depression, and spouses were more vulnerable to post-traumatic stress symptoms than the patients were. Increasing age and a later time of assessment were also associated with lower scores on the Impact of Event Scale.
DOI: 10.6084/m9.figshare.6008000
title: Alcohol consumption, Quality of Life and Brief Intervention among Nursing university students

description: ABSTRACT Objective: To evaluate nursing university students’ alcohol consumption patterns, Brief Intervention and Quality of Life (QoL). Method: This is a prospective and longitudinal study containing sociodemographic, economic information concerning alcoholic beverages, BI and QoL evaluation among 281 nursing university students. Since surveys have been applied, seminars have been given and consumption patterns have been discussed, an educational material was delivered after university students’ revaluation and BI reinforcement. Descriptive and analytical statistics have been conducted. Results: 90% of the students have already consumed alcohol and 20.6% that consumed for the first time and abused alcohol were minors. After the implementation of BI, the alcohol consumption has decreased among university students. Besides the vitality, generate state of health, and emotional aspects have decreased, mental health was substantially low among the students that used to drink. Conclusion: BI contributes to decrease alcoholic beverages consumption and promotes health.
DOI: 10.6084/m9.figshare.6007997
title: Optic neuropathy toxic after methanol inhalation

description: Abstract The methanol toxicity is considered rare event , especially when taken by inhalation . It was portrayed in the present study a case report of a patient who developed toxic optic neuritis after exposure to methanol and acetic acid by inhalation in the workplace . It was described for the therapies from the literature as well as the clinical manifestations and management in this patient.
DOI: 10.6084/m9.figshare.6008000.v1
title: Alcohol consumption, Quality of Life and Brief Intervention among Nursing university students

description: ABSTRACT Objective: To evaluate nursing university students’ alcohol consumption patterns, Brief Intervention and Quality of Life (QoL). Method: This is a prospective and longitudinal study containing sociodemographic, economic information concerning alcoholic beverages, BI and QoL evaluation among 281 nursing university students. Since surveys have been applied, seminars have been given and consumption patterns have been discussed, an educational material was delivered after university students’ revaluation and BI reinforcement. Descriptive and analytical statistics have been conducted. Results: 90% of the students have already consumed alcohol and 20.6% that consumed for the first time and abused alcohol were minors. After the implementation of BI, the alcohol consumption has decreased among university students. Besides the vitality, generate state of health, and emotional aspects have decreased, mental health was substantially low among the students that used to drink. Conclusion: BI contributes to decrease alcoholic beverages consumption and promotes health.
DOI: 10.6084/m9.figshare.6007997.v1
title: Optic neuropathy toxic after methanol inhalation

description: Abstract The methanol toxicity is considered rare event , especially when taken by inhalation . It was portrayed in the present study a case report of a patient who developed toxic optic neuritis after exposure to methanol and acetic acid by inhalation in the workplace . It was described for the therapies from the literature as well as the clinical manifestations and management in this patient.
DOI: 10.6084/m9.figshare.6007991
title: Cashew nut shell liquid, a valuable raw material for generating semiconductive polyaniline nanofibers

description: Abstract Cashew nut shell liquid (CNSL) is an abundant and renewable by-product of the cashew nut industry. It appears to be a valuable raw material for generating semiconductive polyaniline (PAni) nanomaterial with enhanced thermal stability and well-defined nanofiber morphology following a polymerization dispersion process. This study confirms that CNSL acts as a soft template during PAni synthesis, leading to an improvement in the nanofiber aspect. CNSL also improves the thermal stability of the PAni nanomaterial. Moreover, CNSL is an effective surfactant that promotes and stabilizes the dispersion of PAni nanofibers within water, allowing the more ecofriendly preparation of PAni nanomaterial by substituting the commonly used organic solvent with aqueous media. Finally, although CNSL promotes the formation of the conductive emeraldine salt form of PAni, increasing CNSL concentrations appear to plasticize the PAni polymer, leading to reduced electrical conductivity. However, this reduction is not detrimental, and PAni nanofibers remain semiconductive even under high CNSL concentrations.
DOI: 10.6084/m9.figshare.6007991.v1
title: Cashew nut shell liquid, a valuable raw material for generating semiconductive polyaniline nanofibers

description: Abstract Cashew nut shell liquid (CNSL) is an abundant and renewable by-product of the cashew nut industry. It appears to be a valuable raw material for generating semiconductive polyaniline (PAni) nanomaterial with enhanced thermal stability and well-defined nanofiber morphology following a polymerization dispersion process. This study confirms that CNSL acts as a soft template during PAni synthesis, leading to an improvement in the nanofiber aspect. CNSL also improves the thermal stability of the PAni nanomaterial. Moreover, CNSL is an effective surfactant that promotes and stabilizes the dispersion of PAni nanofibers within water, allowing the more ecofriendly preparation of PAni nanomaterial by substituting the commonly used organic solvent with aqueous media. Finally, although CNSL promotes the formation of the conductive emeraldine salt form of PAni, increasing CNSL concentrations appear to plasticize the PAni polymer, leading to reduced electrical conductivity. However, this reduction is not detrimental, and PAni nanofibers remain semiconductive even under high CNSL concentrations.
DOI: 10.6084/m9.figshare.6007988
title: Hemoglobin metabolism by-products are associated with an inflammatory response in patients with hemorrhagic stroke

description: ABSTRACT Objective: To evaluate the relationships of brain iron and heme with the inflammatory response of the systemic and central nervous systems and to investigate the role of defensive systems against the toxicity of iron and heme in the central nervous system. Methods: We assessed a prospective cohort of patients presenting with intracerebral and subarachnoid hemorrhage. We assayed plasma and cerebrospinal fluid samples for the presence of iron, heme, hemopexin, haptoglobin, enolase, S100-β and cytokines for the first three days following hemorrhagic stroke. We also analyzed the dynamic changes in these components within both fluids and their relationship with early mortality rates. Results: Hemopexin and haptoglobin concentrations were nearly negligible in the brain after intracerebral and subarachnoid hemorrhage. Cerebrospinal fluid iron and heme concentrations correlated with a pro-inflammatory response in the central nervous system, and plasmatic and cerebrospinal fluid inflammatory profiles on the third day after hemorrhagic stroke were related to early mortality rates. Interleukin 4 levels within the cerebrospinal fluid during the first 24 hours after hemorrhagic stroke were found to be higher in survivors than in non-survivors. Conclusion: Iron and heme are associated with a pro-inflammatory response in the central nervous system following hemorrhagic stroke, and protections against hemoglobin and heme are lacking within the human brain. Patient inflammatory profiles were associated with a poorer prognosis, and local anti-inflammatory responses appeared to have a protective role.
DOI: 10.6084/m9.figshare.6007988.v1
title: Hemoglobin metabolism by-products are associated with an inflammatory response in patients with hemorrhagic stroke

description: ABSTRACT Objective: To evaluate the relationships of brain iron and heme with the inflammatory response of the systemic and central nervous systems and to investigate the role of defensive systems against the toxicity of iron and heme in the central nervous system. Methods: We assessed a prospective cohort of patients presenting with intracerebral and subarachnoid hemorrhage. We assayed plasma and cerebrospinal fluid samples for the presence of iron, heme, hemopexin, haptoglobin, enolase, S100-β and cytokines for the first three days following hemorrhagic stroke. We also analyzed the dynamic changes in these components within both fluids and their relationship with early mortality rates. Results: Hemopexin and haptoglobin concentrations were nearly negligible in the brain after intracerebral and subarachnoid hemorrhage. Cerebrospinal fluid iron and heme concentrations correlated with a pro-inflammatory response in the central nervous system, and plasmatic and cerebrospinal fluid inflammatory profiles on the third day after hemorrhagic stroke were related to early mortality rates. Interleukin 4 levels within the cerebrospinal fluid during the first 24 hours after hemorrhagic stroke were found to be higher in survivors than in non-survivors. Conclusion: Iron and heme are associated with a pro-inflammatory response in the central nervous system following hemorrhagic stroke, and protections against hemoglobin and heme are lacking within the human brain. Patient inflammatory profiles were associated with a poorer prognosis, and local anti-inflammatory responses appeared to have a protective role.
DOI: 10.6084/m9.figshare.6007982
title: Reinforcement of poly (vinyl alcohol) films with alpha-chitin nanowhiskers

description: Abstract Composites Films were produced using Poly (Vinyl Alcohol) as the soft material and reinforced with Chitin Nanowhiskers(NWCH) as the rigid material. The present work studies the reinforcing mechanisms of NWCH in PVA films, made through a solvent casting technique and characterized for their calorimetric, swelling and mechanical properties. DSC tests revealed a sharp increase of 45 °C in glass transition temperatures with only 1.5% NWCH, while melting temperature had a small increases suggesting an anti-plasticizing effect. Swelling tests revealed decreasing hygoscopy when NWCH volume fraction increases. Estimates for elastic tensile modulus using a model that predicts the formation of a percolating network were not consistent with the experimental data of tensile tests suggesting that contrary to the reinforcement with cellulose nanowhiskers the percolating network is not primarily responsible for the reinforcement of the films. By adjusting the Halpin-Tsai equations, modified by Nielsen it was found that the mechanical properties were mainly influenced by the packing of the NWCH.
DOI: 10.6084/m9.figshare.6007982.v1
title: Reinforcement of poly (vinyl alcohol) films with alpha-chitin nanowhiskers

description: Abstract Composites Films were produced using Poly (Vinyl Alcohol) as the soft material and reinforced with Chitin Nanowhiskers(NWCH) as the rigid material. The present work studies the reinforcing mechanisms of NWCH in PVA films, made through a solvent casting technique and characterized for their calorimetric, swelling and mechanical properties. DSC tests revealed a sharp increase of 45 °C in glass transition temperatures with only 1.5% NWCH, while melting temperature had a small increases suggesting an anti-plasticizing effect. Swelling tests revealed decreasing hygoscopy when NWCH volume fraction increases. Estimates for elastic tensile modulus using a model that predicts the formation of a percolating network were not consistent with the experimental data of tensile tests suggesting that contrary to the reinforcement with cellulose nanowhiskers the percolating network is not primarily responsible for the reinforcement of the films. By adjusting the Halpin-Tsai equations, modified by Nielsen it was found that the mechanical properties were mainly influenced by the packing of the NWCH.