cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9927737.v1
title: The impact of maintenance on peri-implant health

description: Abstract Most of the literature evaluating dental implants focuses on implant survival, which is a limited proxy for the successful rehabilitation of patients with missing teeth. Success should include not only survival but also lack of mechanical, biological, and esthetics problems. A comprehensive review of local and systemic risk factors prior to implant placement will allow the tailoring of treatment planning and maintenance protocols to the patient’s profile in order to achieve longitudinal success of the therapy. This review discusses the role of controlling different risk factors and prevention/treatment of peri-implant mucositis in order to avoid peri-implantitis. Although the literature addressing the topic is still scarce, the existing evidence shows that performing optimal plaque control and regular visits to the dentist seem to be adequate to prevent peri-implant lesions. Due to impossibility of defining a probing depth associate with peri-implant health, radiographic evaluations may be considered in the daily practice. So far, there is a strong evidence linking a past history of periodontal disease to peri-implant lesions, but this is not so evident for other factors including smoking and diabetes. The prevention of biological complications starts even before implant placement and include a broader analysis of the patient risk profile and tailoring the rehabilitation and maintenance protocols accordingly. It should be highlighted that the installation of implants does not modify the patient profile, since it does not modify genetics, microbiology or behavioral habits of any individual.
DOI: 10.6084/m9.figshare.9927728
title: EFFECT OF DISC-BLADE INTERCEPTING ANGLE ON MIXING PERFORMANCE IN A MULTIPHASE STIRRED VESSEL

description: Abstract The impeller geometry is a determining factor for mixing efficiency in a stirred vessel. In this study, the effect of disc-blade intercepting angle on power number, just suspended speed and mass transfer coefficient was investigated in a multiphase system under turbulent conditions. The impellers used in this study were fabricated with 3D printing. The interactions between the experimental parameters were analysed using Response Surface Methodology (RSM). The impeller power number was found to have a linear positive relation with disc-blade intercepting angle from 30° to 90°. Beyond 90°, the impeller power number became lower with increment in the disc-blade intercepting angle. The results confirmed better suspension efficiency in the angle range of 50° to 120° in 5 wt% solid suspensions. The lowest specific power requirement (Ɛjs) at just suspension condition was observed in the angle range of 30° to 80°. The highest mass transfer coefficient was obtained for the impellers with disc-blade intercepting angle in the middle range. Two models were established on power number and mass transfer coefficient for various disc-blade intercepting angles. The study confirmed that the hydrodynamic and mass transfer performance of disc blade impellers could be maximized by changing the disc-blade intercepting angle for a selected system.
DOI: 10.6084/m9.figshare.9927731.v1
title: Modeling of the Rainfall and R-Factor for Tocantins State, Brazil

description: ABSTRACT The state of Tocantins is inserted in the new Brazilian agricultural frontier and has shown enormous potential for expansion of the agricultural lands. However, there is a lack of more elaborate scientific information for better planning and guide agricultural activities, especially regarding the soil and water conservation. Tocantins has a relevant rainfall spatial variability and, consequently, rainfall erosivity. Thus, this work aimed to develop models to estimate the mean monthly and annual rainfall and means rainfall erosivity factor (R-factor) of the Universal Soil Loss Equation (USLE) for the state of Tocantins. For that, 97 historical series of daily rainfall were studied, considering a standard period of 25 years (1985-2009). The fitting of the models adjustment datasets consists of 86 rain-gauges, out of which, 11 were randomly selected and used solely for model validation. Afterward, maps of these variables were generated based on the regression-kriging procedure. The fitted models presented precision statistical that allow characterizing them as “good quality”, with a coefficient of determination higher than 0.68 for rainfall models and 0.65 for the R-factor model, besides acceptable bias. Therefore, the application of the models can be successfully carried out, aiding the agricultural planning in the state of Tocantins.
DOI: 10.6084/m9.figshare.9927719
title: Family background and school performance: an approach with binary variables from SARESP results

description: Abstract This study researches the impact of outside school factors on individuals’ schooling. Income and maternal schooling are taken into consideration when measuring the effect of familiar aspects on students’ performance in Mathematics. Therefore, we used data referring to the Mathematics grade of students in 3rd year High School, and the answers provided by their parents for the socioeconomic questionnaire, applied by SARESP in its 2013 edition. Models with binary variables are proposed and estimates for parameters are obtained with SPSS. Results show that students from families with higher incomes indicate better educational performance, but there are restrictions. The level of maternal education positively influences student’s performance, but is limited to appropriate proficiency levels.
DOI: 10.6084/m9.figshare.9927728.v1
title: EFFECT OF DISC-BLADE INTERCEPTING ANGLE ON MIXING PERFORMANCE IN A MULTIPHASE STIRRED VESSEL

description: Abstract The impeller geometry is a determining factor for mixing efficiency in a stirred vessel. In this study, the effect of disc-blade intercepting angle on power number, just suspended speed and mass transfer coefficient was investigated in a multiphase system under turbulent conditions. The impellers used in this study were fabricated with 3D printing. The interactions between the experimental parameters were analysed using Response Surface Methodology (RSM). The impeller power number was found to have a linear positive relation with disc-blade intercepting angle from 30° to 90°. Beyond 90°, the impeller power number became lower with increment in the disc-blade intercepting angle. The results confirmed better suspension efficiency in the angle range of 50° to 120° in 5 wt% solid suspensions. The lowest specific power requirement (Ɛjs) at just suspension condition was observed in the angle range of 30° to 80°. The highest mass transfer coefficient was obtained for the impellers with disc-blade intercepting angle in the middle range. Two models were established on power number and mass transfer coefficient for various disc-blade intercepting angles. The study confirmed that the hydrodynamic and mass transfer performance of disc blade impellers could be maximized by changing the disc-blade intercepting angle for a selected system.
DOI: 10.6084/m9.figshare.9927713
title: Immigration flux from the district of Porto to the state of Pará: rubber, conflicts, epidemics and gender (1834-1930)

description: Abstract The article analyzes immigration from the Porto district to Pará, between 1834 and 1930, through passport records from the Civil Government of Porto. It observes the flow through the decades, emphasizing the economic and social issues associated to these displacements as well as specific aspects such as epidemics and social conflicts, highlighting the “Revolta da Cabanagem” (Cabanagem Rebellion) on a local scale and the First World War on a global scale. It analyzes the influence of passport holders’ companions and re-migration on migrants’ flows, followed by research into the profile of the immigrants regarding origin and the naturality by district and Portuguese “concelhos”. Finally, the article problematizes female migration and the gender issues it involves, pointing to the asymmetry of women’s displacement, always smaller in relation to men, but showing growth in the first decades of the twentieth century.
DOI: 10.6084/m9.figshare.9927719.v1
title: Family background and school performance: an approach with binary variables from SARESP results

description: Abstract This study researches the impact of outside school factors on individuals’ schooling. Income and maternal schooling are taken into consideration when measuring the effect of familiar aspects on students’ performance in Mathematics. Therefore, we used data referring to the Mathematics grade of students in 3rd year High School, and the answers provided by their parents for the socioeconomic questionnaire, applied by SARESP in its 2013 edition. Models with binary variables are proposed and estimates for parameters are obtained with SPSS. Results show that students from families with higher incomes indicate better educational performance, but there are restrictions. The level of maternal education positively influences student’s performance, but is limited to appropriate proficiency levels.
DOI: 10.6084/m9.figshare.9927722
title: The application of International Atomic Energy Agency (IAEA) nuclear data as a scientific contribution in Nuclear Physics teaching

description: Abstract This paper presents a suggestion of a Nuclear Physics teaching activity in which the International Atomic Energy Agency (IAEA) nuclear data are used. The motivating theme is the understanding of the Physics in Boron Neutron Capture Therapy (BNCT). Neutron-Induced fission of B-10, in 5 10 B ( n , α ) 3 7 Li reaction, and gamma decay has been analyzed and discussed in this context. To understand the conceptual aspects of reaction energy, fission products – divided into two different energetic sets of particles –, and gamma radiation from the radioactive decay of the Li-7 isomeric state were used both qualitative and quantitative methodologies.
DOI: 10.6084/m9.figshare.9927707
title: Spontaneous outer retinal layer recovery in a case of hypertensive choroidopathy secondary to pre-eclampsia: a multimodal evaluation

description: ABSTRACT A 26-year-old woman presented at 28 weeks gestation with hypertensive choroidopathy associated with pre-eclampsia. Fundus photography, fundus autofluorescence, spectral-domain optical coherence tomography (SD-OCT), fluorescein angiography, and indocyanine green angiography were performed in both eyes in the immediate postoperative period. SD-OCT images were obtained before delivery and during a 3-month follow-up. Fundus autofluorescence exhibited patchy hyper- and hypoautofluorescent lesions; fluorescein and indocyanine green angiography revealed areas of choroidal ischemia; and SD-OCT showed disorganization of the outer retinal layers and disruption of the ellipsoid zone. After her blood pressure was stabilized, progressive recovery of the outer retinal layer was monitored on SD-OCT.
DOI: 10.6084/m9.figshare.9927710
title: Ultrastructural changes detected using swept-source optical coherence tomography in severe vitreopapillary traction: a case report

description: ABSTRACT Vitreopapillary traction is an uncommon condition characterized by strong adhesion and the traction of the posterior hyaloid onto the optic disc and peripapillary retina, leading to optic disc elevation and visual loss. An 85-year-old man presented with a 6-month history of slow, progressive visual loss in the left eye along with optic disc edema. Swept-source optical coherence tomography B-scans revealed circumpapillary anterior-posterior persistent traction of dense vitreous strands onto the optic disc. Visual field examination demonstrated mild, generalized, diffuse sensitivity loss and blind-spot enlargement. A 25-gauge posterior vitrectomy was performed with posterior hyaloid separation from the optic disc, resulting in significant anatomical and visual improvement. In conclusion, swept-source optical coherence tomography aids in understanding the mechanism underlying visual loss in vitreopapillary traction. Moreover, posterior vitrectomy can effectively promote anatomical and visual improvements in these cases.
DOI: 10.6084/m9.figshare.9927716
title: Low fertility and postponement of first birth in Brazil

description: Abstract Brazil is undergoing a process of birth postponement, which has contributed to the reduction of observed fertility. In this context, first births are crucial, insofar as the moment of their occurrence is related to subsequent births and to postponed births’ recovery potential. The objective of this paper is to analyze first-order births, taking into account Brazilian regional heterogeneity. We intend to enrich the debate about the future of fertility in Brazil. Data come from the 1980, 1991, 2000 and 2010 Demographic Censuses and the birth stories reconstructed from them, for the 1980 to 2010 period. Results show the persistence of regional differentials and point to (i) a scenario of postponement of first child in Brazil; and (ii) an increase in the proportion of childless women. If regional differences are reduced, postponement tends to increase and fertility levels tend to decrease further.
DOI: 10.6084/m9.figshare.9927713.v1
title: Immigration flux from the district of Porto to the state of Pará: rubber, conflicts, epidemics and gender (1834-1930)

description: Abstract The article analyzes immigration from the Porto district to Pará, between 1834 and 1930, through passport records from the Civil Government of Porto. It observes the flow through the decades, emphasizing the economic and social issues associated to these displacements as well as specific aspects such as epidemics and social conflicts, highlighting the “Revolta da Cabanagem” (Cabanagem Rebellion) on a local scale and the First World War on a global scale. It analyzes the influence of passport holders’ companions and re-migration on migrants’ flows, followed by research into the profile of the immigrants regarding origin and the naturality by district and Portuguese “concelhos”. Finally, the article problematizes female migration and the gender issues it involves, pointing to the asymmetry of women’s displacement, always smaller in relation to men, but showing growth in the first decades of the twentieth century.
DOI: 10.6084/m9.figshare.9927710.v1
title: Ultrastructural changes detected using swept-source optical coherence tomography in severe vitreopapillary traction: a case report

description: ABSTRACT Vitreopapillary traction is an uncommon condition characterized by strong adhesion and the traction of the posterior hyaloid onto the optic disc and peripapillary retina, leading to optic disc elevation and visual loss. An 85-year-old man presented with a 6-month history of slow, progressive visual loss in the left eye along with optic disc edema. Swept-source optical coherence tomography B-scans revealed circumpapillary anterior-posterior persistent traction of dense vitreous strands onto the optic disc. Visual field examination demonstrated mild, generalized, diffuse sensitivity loss and blind-spot enlargement. A 25-gauge posterior vitrectomy was performed with posterior hyaloid separation from the optic disc, resulting in significant anatomical and visual improvement. In conclusion, swept-source optical coherence tomography aids in understanding the mechanism underlying visual loss in vitreopapillary traction. Moreover, posterior vitrectomy can effectively promote anatomical and visual improvements in these cases.
DOI: 10.6084/m9.figshare.9927716.v1
title: Low fertility and postponement of first birth in Brazil

description: Abstract Brazil is undergoing a process of birth postponement, which has contributed to the reduction of observed fertility. In this context, first births are crucial, insofar as the moment of their occurrence is related to subsequent births and to postponed births’ recovery potential. The objective of this paper is to analyze first-order births, taking into account Brazilian regional heterogeneity. We intend to enrich the debate about the future of fertility in Brazil. Data come from the 1980, 1991, 2000 and 2010 Demographic Censuses and the birth stories reconstructed from them, for the 1980 to 2010 period. Results show the persistence of regional differentials and point to (i) a scenario of postponement of first child in Brazil; and (ii) an increase in the proportion of childless women. If regional differences are reduced, postponement tends to increase and fertility levels tend to decrease further.
DOI: 10.6084/m9.figshare.9927722.v1
title: The application of International Atomic Energy Agency (IAEA) nuclear data as a scientific contribution in Nuclear Physics teaching

description: Abstract This paper presents a suggestion of a Nuclear Physics teaching activity in which the International Atomic Energy Agency (IAEA) nuclear data are used. The motivating theme is the understanding of the Physics in Boron Neutron Capture Therapy (BNCT). Neutron-Induced fission of B-10, in 5 10 B ( n , α ) 3 7 Li reaction, and gamma decay has been analyzed and discussed in this context. To understand the conceptual aspects of reaction energy, fission products – divided into two different energetic sets of particles –, and gamma radiation from the radioactive decay of the Li-7 isomeric state were used both qualitative and quantitative methodologies.
DOI: 10.6084/m9.figshare.9927698
title: New perspectives on macular hole surgery at three years of follow-up

description: ABSTRACT Purpose: The aim of this study was to determine the functional and anatomical success rates as well as the safety of sutureless combined surgery involving vitreous base removal and internal limiting membrane peeling after Brilliant Blue G (0.5 mg/mL) staining for the management of idiopathic macular holes after three years. Methods: Forty-six eyes of 46 patients with an idiopathic macular hole were enrolled in this retrospective study. The inclusion criteria were macular holes with a minimum linear diameter below 1,500 mm, 0.05 or better decimal best-corrected visual acuity and duration of symptoms less than two years. The exclusion criteria included pregnancy, optic nerve atrophy, advanced glaucoma, and other chronic ocular diseases. The surgical procedure included internal limiting membrane peeling after Brilliant Blue G (0.5 mg/mL) staining, along with C3F8 tamponade and face-down positioning for three days postoperatively. Ophthalmologic examinations and optical coherence tomography were performed at 1 and 7 days and 1, 6, 12, 24, and 36 months postoperatively. If no anatomic closure of the macular holes occurred within the first month, the area of the internal limiting membrane peeling was enlarged in a second procedure. Multiple logistic regression and chi-squared tests were used for data analyses, and p-values of &lt;0.05 were considered significant. Results: Out of 46 eyes with a preoperative idiopathic macular hole, anatomic closure was achieved in 42 (91.3%) after one procedure and in 45 (97.8%) after an additional surgery. The median postoperative best-corrected visual acuity improvement was 0.378 (range: 0.050-0.900) decimal. None of the patients experienced macular hole reopening, surgery-related complications, or ocular complications related to the dye. Conclusion: Combined surgery including vitreous base removal and internal limiting membrane peeling after staining with Brilliant Blue G (0.5 mg/mL) for the management of idiopathic macular holes resulted in adequate staining, best-corrected visual acuity improvement, and macular hole closure with no signs of ocular toxicity at the three-year follow-up examination.
DOI: 10.6084/m9.figshare.9927704
title: Mechanisms and biomarker candidates in pterygium development

description: ABSTRACT Pterygium pathogenesis has been mainly asso ciated with UV light exposure; however, this association remains quite controversial. The complete mechanism of pterygium also remains to be clarified. Factors such as inflammation, viral infection, oxidative stress, DNA methylation, inflammatory mediators, extracellular matrix modulators, apoptotic and oncogenic proteins, loss of heterozygosity, microsatellite instability, lymphangiogenesis, epithelial-mesenchymal cell transition, and alterations in cholesterol metabolism have been identified as causes. Several studies aimed to clarify the molecular mechanisms underlying the growth and proliferation of pterygium. Understanding its molecular basis provides new potential therapeutic targets for its prevention and treatment. A comprehensive search of the databases, namely, MedLine, EMBASE, and LILACS, was conducted with the following key words: pterygium, epidemiology, pathogenesis, biomarkers, and review. This review describes the epidemiology, clinical presentation, and current investigation of biological mediators involved in pterygium development.
DOI: 10.6084/m9.figshare.9927707.v1
title: Spontaneous outer retinal layer recovery in a case of hypertensive choroidopathy secondary to pre-eclampsia: a multimodal evaluation

description: ABSTRACT A 26-year-old woman presented at 28 weeks gestation with hypertensive choroidopathy associated with pre-eclampsia. Fundus photography, fundus autofluorescence, spectral-domain optical coherence tomography (SD-OCT), fluorescein angiography, and indocyanine green angiography were performed in both eyes in the immediate postoperative period. SD-OCT images were obtained before delivery and during a 3-month follow-up. Fundus autofluorescence exhibited patchy hyper- and hypoautofluorescent lesions; fluorescein and indocyanine green angiography revealed areas of choroidal ischemia; and SD-OCT showed disorganization of the outer retinal layers and disruption of the ellipsoid zone. After her blood pressure was stabilized, progressive recovery of the outer retinal layer was monitored on SD-OCT.
DOI: 10.6084/m9.figshare.9927695
title: STORMY WEATHER ON HIGHER EDUCATION: GLOBALIZATION AND CHANGE

description: ABSTRACTS The paper tackles the issue of the changes in universities, induced by the internationalization of higher education at the turn of the Millennium and the ensuing national reforms that have spread all over the world. Using a meso-approach of the organization, governance and performance of universities, it suggests a typology based on the tensions they experiment between two regimes of worth – the traditional one that favors “reputation” as a social evaluation vs the new one, build around a metrics-based “excellence” assessment. It finally questions the most sensitive issues and challenges they face and how they behave depending on their strategic capacity to face their resources and constraints.