cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.20324277.v1
title: Effect of the Performance of Lignin Into the Matrix of the TiO2 with Application on DSSCs

description: Abstract Founding new materials and structures for solar cells is a challenge in the photovoltaic field. This work evaluated the effect of the lignin in the photovoltaic activity by compounding with TiO2/lignin as photoanode for the dye sensitized solar cells (DSSC’s). Hybrid films (TiO2/lignin) with different concentrations of lignin (5, 10 and 15%) were deposited by spin coating over commercial TiO2 thin films. The cells were sandwich assembled. The characterizations were done through analysis of absorbance, band gap, x-ray diffraction, morphological and electrical. The lignin at 15% reduced the TiO2 band gap from 3.66 to 2.84 eV, favoring the short current density to 11.06 mA/cm2 and efficiency of 4.65%, an increase of 103.95% compared to the TiO2 structure without lignin.
DOI: 10.6084/m9.figshare.20324280
title: Relationship between physical activity level and balance in middle-aged and older women

description: Abstract Introduction: Physical exercise may improve motor skills, such as static standing balance. However, the association between physical activity level based on activities of daily living and static balance is unknown. Objective: To assess the association between the physical activity level and static balance in middle-aged and older women. Methods: This cross-sectional study involved 589 community-dwelling women. Static balance was assessed using the single-leg stance test (SLST) with eyes open and closed. Physical activity level was assessed using the International Physical Activity Questionnaire Short Form and classified as high, moderate, or low. Kruskal-Wallis test compared balance performance between participants with different physical activity levels. Multiple quantile regression analyses assessed the association between variables adjusted for age, family income, educational level, body mass index, comorbidities, and parity. Results: Participants with low physical activity level showed worse SLST performance with eyes open and closed than participants with high physical activity level in the bivariate analysis. However, physical activity level and SLST performance were not associated in the analysis adjusted for covariates. Conclusion: Our results suggested that only being active in daily living activities is not associated with better standing balance in middle-aged and older women. Specific physical exercise programs should be implemented to improve balance in this population.
DOI: 10.6084/m9.figshare.20324280.v1
title: Relationship between physical activity level and balance in middle-aged and older women

description: Abstract Introduction: Physical exercise may improve motor skills, such as static standing balance. However, the association between physical activity level based on activities of daily living and static balance is unknown. Objective: To assess the association between the physical activity level and static balance in middle-aged and older women. Methods: This cross-sectional study involved 589 community-dwelling women. Static balance was assessed using the single-leg stance test (SLST) with eyes open and closed. Physical activity level was assessed using the International Physical Activity Questionnaire Short Form and classified as high, moderate, or low. Kruskal-Wallis test compared balance performance between participants with different physical activity levels. Multiple quantile regression analyses assessed the association between variables adjusted for age, family income, educational level, body mass index, comorbidities, and parity. Results: Participants with low physical activity level showed worse SLST performance with eyes open and closed than participants with high physical activity level in the bivariate analysis. However, physical activity level and SLST performance were not associated in the analysis adjusted for covariates. Conclusion: Our results suggested that only being active in daily living activities is not associated with better standing balance in middle-aged and older women. Specific physical exercise programs should be implemented to improve balance in this population.
DOI: 10.6084/m9.figshare.20324281
title: THE EFFECT OF CAUSAL ATTRIBUTION ON A SERVICE FAILURE MODEL

description: ABSTRACT Service recovery has been extensively studied and is a relevant issue for markets in which consumers repurchase products or services. There are two normative aspects of service recovery: how a company should act after a service failure and the consequences of the service failure regarding the company-customer relationship. This study presents a service failure model that combines these two aspects, investigating how causal attribution affects the customer’s perception regarding repurchase when a solution is provided after a service failure. A survey was conducted with users of a telecommunications service provider in Brazil, exploring two situations: a) the customer accidentally caused a service failure, and b) the company caused a service failure. The item response theory (IRT) was used, adopting PLS-SEM. Trust level and switching barriers were highlighted as important factors to keep repurchasing intentions positive. Customers trust more in the company when the failure is attributed to the organization, and it solves the problem, which induces a higher repurchase intention than when the failure is attributed to the customer.
DOI: 10.6084/m9.figshare.20324281.v1
title: THE EFFECT OF CAUSAL ATTRIBUTION ON A SERVICE FAILURE MODEL

description: ABSTRACT Service recovery has been extensively studied and is a relevant issue for markets in which consumers repurchase products or services. There are two normative aspects of service recovery: how a company should act after a service failure and the consequences of the service failure regarding the company-customer relationship. This study presents a service failure model that combines these two aspects, investigating how causal attribution affects the customer’s perception regarding repurchase when a solution is provided after a service failure. A survey was conducted with users of a telecommunications service provider in Brazil, exploring two situations: a) the customer accidentally caused a service failure, and b) the company caused a service failure. The item response theory (IRT) was used, adopting PLS-SEM. Trust level and switching barriers were highlighted as important factors to keep repurchasing intentions positive. Customers trust more in the company when the failure is attributed to the organization, and it solves the problem, which induces a higher repurchase intention than when the failure is attributed to the customer.
DOI: 10.6084/m9.figshare.20324283
title: Quality of Life of Pregnant Women with Systemic Lupus Erythematosus

description: Abstract Objective To assess the quality of life (QoL) of pregnant women with systemic lupus erythematosus (SLE) treated at a high-risk prenatal outpatient clinic during the third trimester of gestation. Methods An observational descriptive study was performed in a high-risk prenatal outpatient clinic. Women in the third trimester of pregnancy and undergoing antenatal care between July 2017 and July 2019 answered the abbreviated World Health Organization Quality of Life (WHOQOL-BREF) questionnaire, consisting of 26 questions divided into 4 domains (physical, psychological, social and environmental). Results We interviewed 50 pregnant women with a mean gestational age of 30 weeks (standard deviation [SD]: 10 weeks) who were diagnosed with SLE. The average age of the participants was 30 years (SD: 14.85), and the average time since the diagnosis of SLE was of 9.06 years (SD: 6.8 years). Most participants had a partner, did not plan their pregnancy (76%), and did not use contraception prior to pregnancy (80%). The score of each domain ranges from 0 (the worst score) to 100 (the best score). The means ± SDs of the scores of the participants on each domain were: physical - 52.21 ± 18.44); psychological - 64.17 ± 18.56); social - 66.33 ± 27.09); and environmental - 64.56 (18.53). The means ± SDs of the general QoL, and health-related QoL items were of 70.50 ± 24.06 and 70.00 ± 30.72 respectively. Conclusion The physical domain presented the lowest scores compared with the other three domains. Pregnant women with SLE had high overall QoL scores, and their health-related QoL scores were also relatively high.
DOI: 10.6084/m9.figshare.20324283.v1
title: Quality of Life of Pregnant Women with Systemic Lupus Erythematosus

description: Abstract Objective To assess the quality of life (QoL) of pregnant women with systemic lupus erythematosus (SLE) treated at a high-risk prenatal outpatient clinic during the third trimester of gestation. Methods An observational descriptive study was performed in a high-risk prenatal outpatient clinic. Women in the third trimester of pregnancy and undergoing antenatal care between July 2017 and July 2019 answered the abbreviated World Health Organization Quality of Life (WHOQOL-BREF) questionnaire, consisting of 26 questions divided into 4 domains (physical, psychological, social and environmental). Results We interviewed 50 pregnant women with a mean gestational age of 30 weeks (standard deviation [SD]: 10 weeks) who were diagnosed with SLE. The average age of the participants was 30 years (SD: 14.85), and the average time since the diagnosis of SLE was of 9.06 years (SD: 6.8 years). Most participants had a partner, did not plan their pregnancy (76%), and did not use contraception prior to pregnancy (80%). The score of each domain ranges from 0 (the worst score) to 100 (the best score). The means ± SDs of the scores of the participants on each domain were: physical - 52.21 ± 18.44); psychological - 64.17 ± 18.56); social - 66.33 ± 27.09); and environmental - 64.56 (18.53). The means ± SDs of the general QoL, and health-related QoL items were of 70.50 ± 24.06 and 70.00 ± 30.72 respectively. Conclusion The physical domain presented the lowest scores compared with the other three domains. Pregnant women with SLE had high overall QoL scores, and their health-related QoL scores were also relatively high.
DOI: 10.6084/m9.figshare.20324289
title: Microbiologic characteristics and antibiotic resistance rates of diabetic foot infections

description: ABSTRACT Purpose: the purpose of this research was to identify the sociodemographic and microbiological characteristics and antibiotic resistance rates of patients with diabetic foot infections, hospitalized in an emergency reference center. Methods: it was an observational and transversal study. The sociodemographic data were collected by direct interview with the patients. During the surgical procedures, specimens of tissue of the infected foot lesions were biopsied to be cultured, and for bacterial resistance analysis. Results: the sample consisted of 105 patients. The majority of patierns were men, over 50 years of age, married and with low educational level. There was bacterial growth in 95 of the 105 tissue cultures. In each positive culture only one germ was isolated. There was a high prevalence of germs of the Enterobacteriaceae family (51,5%). Gram-negative germs were isolated in 60% of cultures and the most individually isolated germs were the Gram-positive cocci, Staphylococcus aureus (20%) and Enterococcus faecalis (17,9%). Regarding antibiotic resistance rates, a high frequency of Staphylococcus aureus resistant to methicillin (63,0%) and to ciprofloxacin (55,5%) was found; additionally, 43,5% of the Gram-negative isolated germs were resistant to ciprofloxacin. Conclusions: the majority of patients were men, over 50 years of age, married and with low educational level. The most prevalent isolated germs from the infected foot lesions were Gram-negative bacteria, resistant to ciprofloxacin, and the individually most isolated germ was the methicillin resistant Staphylococcus aureus.
DOI: 10.6084/m9.figshare.20324289.v1
title: Microbiologic characteristics and antibiotic resistance rates of diabetic foot infections

description: ABSTRACT Purpose: the purpose of this research was to identify the sociodemographic and microbiological characteristics and antibiotic resistance rates of patients with diabetic foot infections, hospitalized in an emergency reference center. Methods: it was an observational and transversal study. The sociodemographic data were collected by direct interview with the patients. During the surgical procedures, specimens of tissue of the infected foot lesions were biopsied to be cultured, and for bacterial resistance analysis. Results: the sample consisted of 105 patients. The majority of patierns were men, over 50 years of age, married and with low educational level. There was bacterial growth in 95 of the 105 tissue cultures. In each positive culture only one germ was isolated. There was a high prevalence of germs of the Enterobacteriaceae family (51,5%). Gram-negative germs were isolated in 60% of cultures and the most individually isolated germs were the Gram-positive cocci, Staphylococcus aureus (20%) and Enterococcus faecalis (17,9%). Regarding antibiotic resistance rates, a high frequency of Staphylococcus aureus resistant to methicillin (63,0%) and to ciprofloxacin (55,5%) was found; additionally, 43,5% of the Gram-negative isolated germs were resistant to ciprofloxacin. Conclusions: the majority of patients were men, over 50 years of age, married and with low educational level. The most prevalent isolated germs from the infected foot lesions were Gram-negative bacteria, resistant to ciprofloxacin, and the individually most isolated germ was the methicillin resistant Staphylococcus aureus.
DOI: 10.6084/m9.figshare.20324290
title: Clinical results of combined penetrating keratoplasty and vitreoretinal surgery

description: ABSTRACT Purpose: The study aimed to assess the anatomical and functional success rates of penetrating keratoplasty with temporary keratoprosthesis-assisted vitreoretinal surgery. Methods: This retrospective study included 15 eyes of 14 patients, recording demographic characteristics, pre-operative anterior and posterior segment pathologies, intraoperative complications, postoperative graft status, retinal attachment, and complications and evaluating anatomical and functional success rates. Results: The mean follow-up period was 29.8 ± 19.1(6-60) months. The most common pre-operative corneal pathology was graft abscess (7 eyes [46.7%]), and the most common diagnosis of the posterior segment was endophthalmitis (7 eyes [46.7%]). Five (33.3%) cases had visual acuity between 0.001-0.08. Pre-operative endophthalmitis was diagnosed in all five cases with anatomical failure.Conclusion: Temporary keratoprosthesis-assisted vitreoretinal surgery with penetrating keratoplasty is an effective method to treat acute/subacute pathologies of the concomitant anterior and posterior segment. However, results may vary on a case-by-case basis. Pre-operative endophthalmitis is a poor prognostic factor for long-term success.
DOI: 10.6084/m9.figshare.20324290.v1
title: Clinical results of combined penetrating keratoplasty and vitreoretinal surgery

description: ABSTRACT Purpose: The study aimed to assess the anatomical and functional success rates of penetrating keratoplasty with temporary keratoprosthesis-assisted vitreoretinal surgery. Methods: This retrospective study included 15 eyes of 14 patients, recording demographic characteristics, pre-operative anterior and posterior segment pathologies, intraoperative complications, postoperative graft status, retinal attachment, and complications and evaluating anatomical and functional success rates. Results: The mean follow-up period was 29.8 ± 19.1(6-60) months. The most common pre-operative corneal pathology was graft abscess (7 eyes [46.7%]), and the most common diagnosis of the posterior segment was endophthalmitis (7 eyes [46.7%]). Five (33.3%) cases had visual acuity between 0.001-0.08. Pre-operative endophthalmitis was diagnosed in all five cases with anatomical failure.Conclusion: Temporary keratoprosthesis-assisted vitreoretinal surgery with penetrating keratoplasty is an effective method to treat acute/subacute pathologies of the concomitant anterior and posterior segment. However, results may vary on a case-by-case basis. Pre-operative endophthalmitis is a poor prognostic factor for long-term success.
DOI: 10.6084/m9.figshare.20324293
title: Predictive value of the characteristics of intraretinal cystoid spaces on early response to antivascular endothelial growth factor treatment in patients with cystoid diabetic macular edema

description: ABSTRACT Purpose: To evaluate whether baseline spectral-domain optical coherence tomography characteristics of intraretinal cystoid spaces predict visual outcomes in patients receiving intravitreal antivascular endothelial growth factor injection therapy (bevacizumab 1.25mg/0.05ml) for diabetic cystoid macular edema. Methods: The relationship between the properties of the cystoid spaces before injection and anatomic and functional results after injection were investigated in patients who received three consecutive intravitreal bevacizumab injections for cystoid macular edema. The best-corrected visual acuity for functional success and central subfield thickness for anatomical success were evaluated. The relationship of the location of the cystoid spaces with the integrity of photoreceptors and inner retinal layers was also evaluated. Results: In 36 eyes of 36 patients, the mean best-corrected visual acuity significantly improved (p=0.002), and mean central subfield thickness decreased after injections (p=0.003). The improvement in best-corrected visual acuity was limited in eyes with outer nuclear layer cysts (p=0.045). Intracystic reflectivity was higher in eyes that poor best-corrected visual acuity than in eyes with successful visual outcomes (p=0.028). The disrupted ellipsoid zone was present in 13 (59.0%) of 22 eyes with outer nuclear layer cysts, whereas in only 1 of 14 eyes (7.1%) without outer nuclear layer cysts (p=0.009). Disorganization of retinal inner layers was present in 15 of 22 (68.1%) eyes with outer nuclear layer cysts, whereas only 2 of 14 (14.2%) without outer nuclear layer cysts had disorganization of retinal inner layers (p=0.013). Conclusion: Characteristics of intraretinal cystoid spaces may predict prognosis in patients with diabetic cystoid macular edema, and visual gain may be limited in the eyes with outer nuclear layer cysts.
DOI: 10.6084/m9.figshare.20324293.v1
title: Predictive value of the characteristics of intraretinal cystoid spaces on early response to antivascular endothelial growth factor treatment in patients with cystoid diabetic macular edema

description: ABSTRACT Purpose: To evaluate whether baseline spectral-domain optical coherence tomography characteristics of intraretinal cystoid spaces predict visual outcomes in patients receiving intravitreal antivascular endothelial growth factor injection therapy (bevacizumab 1.25mg/0.05ml) for diabetic cystoid macular edema. Methods: The relationship between the properties of the cystoid spaces before injection and anatomic and functional results after injection were investigated in patients who received three consecutive intravitreal bevacizumab injections for cystoid macular edema. The best-corrected visual acuity for functional success and central subfield thickness for anatomical success were evaluated. The relationship of the location of the cystoid spaces with the integrity of photoreceptors and inner retinal layers was also evaluated. Results: In 36 eyes of 36 patients, the mean best-corrected visual acuity significantly improved (p=0.002), and mean central subfield thickness decreased after injections (p=0.003). The improvement in best-corrected visual acuity was limited in eyes with outer nuclear layer cysts (p=0.045). Intracystic reflectivity was higher in eyes that poor best-corrected visual acuity than in eyes with successful visual outcomes (p=0.028). The disrupted ellipsoid zone was present in 13 (59.0%) of 22 eyes with outer nuclear layer cysts, whereas in only 1 of 14 eyes (7.1%) without outer nuclear layer cysts (p=0.009). Disorganization of retinal inner layers was present in 15 of 22 (68.1%) eyes with outer nuclear layer cysts, whereas only 2 of 14 (14.2%) without outer nuclear layer cysts had disorganization of retinal inner layers (p=0.013). Conclusion: Characteristics of intraretinal cystoid spaces may predict prognosis in patients with diabetic cystoid macular edema, and visual gain may be limited in the eyes with outer nuclear layer cysts.
DOI: 10.6084/m9.figshare.20324296.v1
title: Assessment of suicidal behavior in medical students

description: ABSTRACT Objective The aim of this paper is to analyze the lifetime and past 12-month prevalence rates of suicidal behavior (suicidal ideation, suicide plans and suicidal attempt) and associated factors among medical students at the Federal University of Rio de Janeiro. Methods Sectional study was applied to a representative and random set (n = 324) of 1,217 medical students between April and November of 2019. The data were collected by five researchers through in-person interviews with 296 of 324 volunteers (participation rate of 91.4%), using the Multisite Intervention Study on Suicidal Behavior interview to assess suicidal behavior, the PHQ-9 (Patient Health Questionnaire-9) to assess major depressive episode, and ASSIST (Alcohol, Smoking and Substance Involvement Screening Test) to assess substance use and abuse. A logistic regression model was used to calculate associations. Results The rates of past-12 month were found to be 18.9% (CI 95%: 14.9-23.8) for ideation, 6.1% (CI 95%: 3.9-9.4) for suicide plans and 1.7% (CI 95%: 0.7-4.1) for suicidal attempts. The lifetime prevalence rates were 27.7% (CI 95%: 22,9-33,0) for suicidal ideation, 12.5% (CI 95%: 9.2-16.7) for plans and 5.7% (CI 95%: 3.6-9.0) for suicidal attempts. These rates are higher than the measured results among medical students in Brazil. The factors associated in the final analysis were the major depressive episode and current psychological treatment. Conclusions The association between mental health treatment and major depressive episode suggest that the universities should implement suicidal behavior prevention programs.
DOI: 10.6084/m9.figshare.20324296
title: Assessment of suicidal behavior in medical students

description: ABSTRACT Objective The aim of this paper is to analyze the lifetime and past 12-month prevalence rates of suicidal behavior (suicidal ideation, suicide plans and suicidal attempt) and associated factors among medical students at the Federal University of Rio de Janeiro. Methods Sectional study was applied to a representative and random set (n = 324) of 1,217 medical students between April and November of 2019. The data were collected by five researchers through in-person interviews with 296 of 324 volunteers (participation rate of 91.4%), using the Multisite Intervention Study on Suicidal Behavior interview to assess suicidal behavior, the PHQ-9 (Patient Health Questionnaire-9) to assess major depressive episode, and ASSIST (Alcohol, Smoking and Substance Involvement Screening Test) to assess substance use and abuse. A logistic regression model was used to calculate associations. Results The rates of past-12 month were found to be 18.9% (CI 95%: 14.9-23.8) for ideation, 6.1% (CI 95%: 3.9-9.4) for suicide plans and 1.7% (CI 95%: 0.7-4.1) for suicidal attempts. The lifetime prevalence rates were 27.7% (CI 95%: 22,9-33,0) for suicidal ideation, 12.5% (CI 95%: 9.2-16.7) for plans and 5.7% (CI 95%: 3.6-9.0) for suicidal attempts. These rates are higher than the measured results among medical students in Brazil. The factors associated in the final analysis were the major depressive episode and current psychological treatment. Conclusions The association between mental health treatment and major depressive episode suggest that the universities should implement suicidal behavior prevention programs.