cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5816478
title: Optimal selective logging regime and log landing location models: a case study in the Amazon forest

description: ABSTRACT Reduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process. Therefore, the aim of this study was to create an integer linear programming (ILP) to fill in the knowledge gaps in the decision support system of reduced impact logging explorations. The minimization of harvest tree distance to wood log landing was assessed. Forest structure aspects, income and wood production were set in the model, as well as the adjacency constraints. Data are from a dense ombrophylous forest in the western Brazilian Amazon. We applied the phytosociological analysis and BDq method to define the selective logging criteria. Then, ILP models were formulated to allow the application of the constraints. Finally, 32 scenarios (unbalanced forest, UF, and balanced forest, BF) were generated and compared with real executed plans (RE). Robust results were achieved and the expected finding of each scenario was met. The feasibility to integrate ILP models in uneven-aged forest management projects was endorsed. Consequently, the UF and BF scenarios tested were efficient and concise, introducing new advances for forest management plans in the Amazon. The proposed models have a high potential to improve the selective logging activities in the Amazon forest.
DOI: 10.6084/m9.figshare.5816478.v1
title: Optimal selective logging regime and log landing location models: a case study in the Amazon forest

description: ABSTRACT Reduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process. Therefore, the aim of this study was to create an integer linear programming (ILP) to fill in the knowledge gaps in the decision support system of reduced impact logging explorations. The minimization of harvest tree distance to wood log landing was assessed. Forest structure aspects, income and wood production were set in the model, as well as the adjacency constraints. Data are from a dense ombrophylous forest in the western Brazilian Amazon. We applied the phytosociological analysis and BDq method to define the selective logging criteria. Then, ILP models were formulated to allow the application of the constraints. Finally, 32 scenarios (unbalanced forest, UF, and balanced forest, BF) were generated and compared with real executed plans (RE). Robust results were achieved and the expected finding of each scenario was met. The feasibility to integrate ILP models in uneven-aged forest management projects was endorsed. Consequently, the UF and BF scenarios tested were efficient and concise, introducing new advances for forest management plans in the Amazon. The proposed models have a high potential to improve the selective logging activities in the Amazon forest.
DOI: 10.6084/m9.figshare.5816475
title: Factors associated with abnormalities of the cytopathological uterine cervix test in South of Brazil

description: Abstract Objectives: to identify factors associated with abnormal cytopathological test uterine cervix. Methods: it is a analytical study with the participation of 390 women who presented abnormal cytopathological from a city in the state of Paraná in 2012. They were randomly selected through sampling plan. Sociodemographic information such as age, marital status, education level and ethnicity were considered independent variables while the high or low-grade cytological lesions as dependent variable. We analyzed the data statistically by Yates Corrected test, Fisher exact test and measures of association by odds ratio. For all analyzes was considered significance level of 5% and 95% confidence interval. Results: the mean age was 38.8 years, 72.9% were married or common-law marriage, 49.7% with low education level and 87.4% race/color white. HPV contamination was detected in 49.7% of women and high-grade cytological lesions in 18.2%. The low educa-tional level (95%OR=4.07) and non-white ethnicity (95%OR=2.22) were strongly associated with the development to cervical lesions (p&lt;0.05). Conclusions: sociodemoghaphic characteristics were crucial to high-risk lesions and development of cervical cancer, especially in women with low educational level and race/color black or brown. These results confirm the persistence of diseases related to preventable and avoidable causes in the country.
DOI: 10.6084/m9.figshare.5816475.v1
title: Factors associated with abnormalities of the cytopathological uterine cervix test in South of Brazil

description: Abstract Objectives: to identify factors associated with abnormal cytopathological test uterine cervix. Methods: it is a analytical study with the participation of 390 women who presented abnormal cytopathological from a city in the state of Paraná in 2012. They were randomly selected through sampling plan. Sociodemographic information such as age, marital status, education level and ethnicity were considered independent variables while the high or low-grade cytological lesions as dependent variable. We analyzed the data statistically by Yates Corrected test, Fisher exact test and measures of association by odds ratio. For all analyzes was considered significance level of 5% and 95% confidence interval. Results: the mean age was 38.8 years, 72.9% were married or common-law marriage, 49.7% with low education level and 87.4% race/color white. HPV contamination was detected in 49.7% of women and high-grade cytological lesions in 18.2%. The low educa-tional level (95%OR=4.07) and non-white ethnicity (95%OR=2.22) were strongly associated with the development to cervical lesions (p&lt;0.05). Conclusions: sociodemoghaphic characteristics were crucial to high-risk lesions and development of cervical cancer, especially in women with low educational level and race/color black or brown. These results confirm the persistence of diseases related to preventable and avoidable causes in the country.
DOI: 10.6084/m9.figshare.5816472
title: Analysis of Styrene Polymerization Without Surfactant and N2 Gas in Cylindrical Flask.

description: The conditions of chemical synthesis can be crucial for polymerization of styrene in such a way that it can be produced latex beads at nanometric range (ϕ &lt; 400nm). In this work, it will be analyzed how the absence of N2 and surfactant will result in colloidal particles with high affinity to agglomerate forming two kinds of nanostructured assemblies: colloidal crystals and nanowires. Four syntheses were realized and four parameters were changed: temperature, impeller speed, and initiator and styrene concentrations. The dispersion was filtered and coated on glass slides by evaporation induced self-assembly (EISA) process. Morphology and topography were observed at Scanning Electron Microscopy (SEM) and Atomic Force Microscope (AFM) respectively. They show how the synthesis conditions play a vital a role on the formation of self assembly nanostructures that can be applied as templates for sensors and biomaterials devices.
DOI: 10.6084/m9.figshare.5816472.v1
title: Analysis of Styrene Polymerization Without Surfactant and N2 Gas in Cylindrical Flask.

description: The conditions of chemical synthesis can be crucial for polymerization of styrene in such a way that it can be produced latex beads at nanometric range (ϕ &lt; 400nm). In this work, it will be analyzed how the absence of N2 and surfactant will result in colloidal particles with high affinity to agglomerate forming two kinds of nanostructured assemblies: colloidal crystals and nanowires. Four syntheses were realized and four parameters were changed: temperature, impeller speed, and initiator and styrene concentrations. The dispersion was filtered and coated on glass slides by evaporation induced self-assembly (EISA) process. Morphology and topography were observed at Scanning Electron Microscopy (SEM) and Atomic Force Microscope (AFM) respectively. They show how the synthesis conditions play a vital a role on the formation of self assembly nanostructures that can be applied as templates for sensors and biomaterials devices.
DOI: 10.6084/m9.figshare.5816469
title: Relation between electoral advertising, money and government evaluation in the performance of candidates in the majority elections in Brazil

description: Abstract This article presents an analysis of the electoral performance of 1,281 candidates who disputed elections for president, governors and mayor of capitals between 2002 and 2014 in Brazil. To do so, we used a set of variables in a multiple linear regression model to describe the combined effects of electoral advertising, campaign spending, and government evaluation of candidate performance. The results show that the impact of the variables will depend on the type of candidate. For example, electoral advertising more effectively explains votes for opposition candidates, while positive government evaluations are the strongest predictive variable for re-election candidates. With this, we hope to contribute to the literature on elections in Brazil, showing the importance of distinguishing between incumbents seeking re-election from opposition candidates.
DOI: 10.6084/m9.figshare.5816469.v1
title: Relation between electoral advertising, money and government evaluation in the performance of candidates in the majority elections in Brazil

description: Abstract This article presents an analysis of the electoral performance of 1,281 candidates who disputed elections for president, governors and mayor of capitals between 2002 and 2014 in Brazil. To do so, we used a set of variables in a multiple linear regression model to describe the combined effects of electoral advertising, campaign spending, and government evaluation of candidate performance. The results show that the impact of the variables will depend on the type of candidate. For example, electoral advertising more effectively explains votes for opposition candidates, while positive government evaluations are the strongest predictive variable for re-election candidates. With this, we hope to contribute to the literature on elections in Brazil, showing the importance of distinguishing between incumbents seeking re-election from opposition candidates.
DOI: 10.6084/m9.figshare.5816460
title: Left Atrial Appendage Closure with Amplatzer Cardiac Plug in Nonvalvular Atrial Fibrillation: Safety and Long-Term Outcome

description: Abstract Background: Atrial fibrillation (AF) is a cardiac arrhythmia with high risk for thromboembolic events, specially stroke. Objective: To assess the safety of left atrial appendage closure (LAAC) with the Amplatzer Cardiac Plug for the prevention of thromboembolic events in patients with nonvalvular AF. Methods: This study included 15 patients with nonvalvular AF referred for LAAC, 6 older than 75 years (mean age, 69.4 ± 9.3 years; 60% of the male sex). Results: The mean CHADS2 score was 3.4 ± 0.1, and mean CHA2DS2VASc , 4.8 ± 1.8, evidencing a high risk for thromboembolic events. All patients had a HAS-BLED score &gt; 3 (mean, 4.5 ± 1.2) with a high risk for major bleeding within 1 year. The device was successfully implanted in all patients, with correct positioning in the first attempt in most of them (n = 11; 73.3%). Conclusion: There was no periprocedural complication, such as device migration, pericardial tamponade, vascular complications and major bleeding. All patients had an uneventful in-hospital course, being discharged in 2 days. The echocardiographic assessments at 6 and 12 months showed neither device migration, nor thrombus formation, nor peridevice leak. On clinical assessment at 12 months, no patient had thromboembolic events or bleeding related to the device or risk factors. In this small series, LAAC with Amplatzer Cardiac Plug proved to be safe, with high procedural success rate and favorable outcome at the 12-month follow-up. (Arq Bras Cardiol. 2017; [online].ahead print, PP.0-0)
DOI: 10.6084/m9.figshare.5816460.v1
title: Left Atrial Appendage Closure with Amplatzer Cardiac Plug in Nonvalvular Atrial Fibrillation: Safety and Long-Term Outcome

description: Abstract Background: Atrial fibrillation (AF) is a cardiac arrhythmia with high risk for thromboembolic events, specially stroke. Objective: To assess the safety of left atrial appendage closure (LAAC) with the Amplatzer Cardiac Plug for the prevention of thromboembolic events in patients with nonvalvular AF. Methods: This study included 15 patients with nonvalvular AF referred for LAAC, 6 older than 75 years (mean age, 69.4 ± 9.3 years; 60% of the male sex). Results: The mean CHADS2 score was 3.4 ± 0.1, and mean CHA2DS2VASc , 4.8 ± 1.8, evidencing a high risk for thromboembolic events. All patients had a HAS-BLED score &gt; 3 (mean, 4.5 ± 1.2) with a high risk for major bleeding within 1 year. The device was successfully implanted in all patients, with correct positioning in the first attempt in most of them (n = 11; 73.3%). Conclusion: There was no periprocedural complication, such as device migration, pericardial tamponade, vascular complications and major bleeding. All patients had an uneventful in-hospital course, being discharged in 2 days. The echocardiographic assessments at 6 and 12 months showed neither device migration, nor thrombus formation, nor peridevice leak. On clinical assessment at 12 months, no patient had thromboembolic events or bleeding related to the device or risk factors. In this small series, LAAC with Amplatzer Cardiac Plug proved to be safe, with high procedural success rate and favorable outcome at the 12-month follow-up. (Arq Bras Cardiol. 2017; [online].ahead print, PP.0-0)
DOI: 10.6084/m9.figshare.5816457
title: Population and development in the Amazon: A longitudinal study of migrant settlers in the Northern Ecuadorian Amazon

description: ABSTRACT This paper examines changes over time for a full generation of migrant settlers in the Northern Ecuadorian Amazon (NEA). Data were collected from a 2014 household survey covering a subsample of households surveyed previously in 1990 and 1999. We observed changes in demographic behavior, land use, forest cover, and living conditions. As the frontier develops, human fertility is continuing to decline with contraceptive prevalence rising. Meanwhile, out-migration from colonist households, largely to destinations within the region, persists. More households have secure land tenure than in 1999, and are better off as measured by possession of assets. There is continued growth in pasture, largely at the expense of forest. Farms still serve as an important livelihood source for families, though growing cities in the NEA are creating more non-agricultural economic opportunities. Our findings provide a snapshot of demographic, economic, land use, and livelihood changes occurring in the NEA during the past quarter century, providing useful information for policymakers seeking to balance economic and environmental goals in order to promote sustainable development as well as protect biodiversity.
DOI: 10.6084/m9.figshare.5816457.v1
title: Population and development in the Amazon: A longitudinal study of migrant settlers in the Northern Ecuadorian Amazon

description: ABSTRACT This paper examines changes over time for a full generation of migrant settlers in the Northern Ecuadorian Amazon (NEA). Data were collected from a 2014 household survey covering a subsample of households surveyed previously in 1990 and 1999. We observed changes in demographic behavior, land use, forest cover, and living conditions. As the frontier develops, human fertility is continuing to decline with contraceptive prevalence rising. Meanwhile, out-migration from colonist households, largely to destinations within the region, persists. More households have secure land tenure than in 1999, and are better off as measured by possession of assets. There is continued growth in pasture, largely at the expense of forest. Farms still serve as an important livelihood source for families, though growing cities in the NEA are creating more non-agricultural economic opportunities. Our findings provide a snapshot of demographic, economic, land use, and livelihood changes occurring in the NEA during the past quarter century, providing useful information for policymakers seeking to balance economic and environmental goals in order to promote sustainable development as well as protect biodiversity.
DOI: 10.6084/m9.figshare.5816454
title: A review of data in medical request and the patient questionnaire for magnetic resonance evaluation of silicone breast implants

description: ABSTRACT Objective: To analyze the quality and quantity of data in the questionnaires and in request forms for magnetic resonance imaging. Methods: This retrospective study was conducted with data from 300 medical records. The research used the following data from the questionnaires: patient age, reason for the magnetic resonance imaging, reason for placing the breast implant, report of any signs or symptoms, time elapsed since surgery to place the current breast implant, replacement implant surgery, chemotherapy, and/or radiation therapy treatments. From the magnetic resonance imaging request forms, information about the breast implant, the implant placement surgery, patient clinical information and ordering physician specialty were verified. Results: The mean age of patients was 48.8 years, and the mean time elapsed since breast implant surgery was 5 years. A total of 60% of women in the sample were submitted to aesthetic surgery, while 23.7% were submitted to chemotherapy and/or radiation therapy. In the request forms, 23.7% of physicians added some piece of information about the patient, whereas 2.3% of them informed the type of implant and 5.2% informed about the surgery. Conclusion: The amount of information in the magnetic resonance imaging request forms is very limited, and this may hinder quality of radiological reports. Institutional and technological measures should be implemented to encourage the requesting physicians and radiologists to share information.
DOI: 10.6084/m9.figshare.5816454.v1
title: A review of data in medical request and the patient questionnaire for magnetic resonance evaluation of silicone breast implants

description: ABSTRACT Objective: To analyze the quality and quantity of data in the questionnaires and in request forms for magnetic resonance imaging. Methods: This retrospective study was conducted with data from 300 medical records. The research used the following data from the questionnaires: patient age, reason for the magnetic resonance imaging, reason for placing the breast implant, report of any signs or symptoms, time elapsed since surgery to place the current breast implant, replacement implant surgery, chemotherapy, and/or radiation therapy treatments. From the magnetic resonance imaging request forms, information about the breast implant, the implant placement surgery, patient clinical information and ordering physician specialty were verified. Results: The mean age of patients was 48.8 years, and the mean time elapsed since breast implant surgery was 5 years. A total of 60% of women in the sample were submitted to aesthetic surgery, while 23.7% were submitted to chemotherapy and/or radiation therapy. In the request forms, 23.7% of physicians added some piece of information about the patient, whereas 2.3% of them informed the type of implant and 5.2% informed about the surgery. Conclusion: The amount of information in the magnetic resonance imaging request forms is very limited, and this may hinder quality of radiological reports. Institutional and technological measures should be implemented to encourage the requesting physicians and radiologists to share information.
DOI: 10.6084/m9.figshare.5816451
title: OBJECTIVISM/SUBJECTIVISM IN SCIENTIFIC ARTICLES FROM DIFFERENT FIELDS: THE HETEROGENEITY OF ACADEMIC WRITING

description: ABSTRACT: This paper is aimed at discussing the homogenization of scientific and academic writing in the process of text constitution, by analyzing aspects related to objectivism and subjectivism in academic texts. The selection of some A1 Brazilian scientific articles from different fields of knowledge was carried out according to specific genre: compositional form, style and theme which delimit texts in terms of objectivism and subjectivism. The work is guided by the dialogic assumptions of the Bakhtin's Circle regarding genres, as well as some authors from the New Literacy Studies framework. Results show that: a) every utterance consists of subjective and objective elements; b) aspects delimiting objectivity and subjectivity are predominantly marked in the compositional and architectural forms and in the text style related to the theme; c) articles of different fields are similar while dealing with elements concerning objectivity, such as compositional form and language resources; d) the articles differ by showing aspects which, although observed in verbal materiality, find meaning in the extra verbal context, pervading subjectivity as a thematic choice as well as some variation in the amount of authors; e) objectivity and subjectivity nuances observed in the discourse allow us to characterize traces of heterogeneous writing in these fields.
DOI: 10.6084/m9.figshare.5816451.v1
title: OBJECTIVISM/SUBJECTIVISM IN SCIENTIFIC ARTICLES FROM DIFFERENT FIELDS: THE HETEROGENEITY OF ACADEMIC WRITING

description: ABSTRACT: This paper is aimed at discussing the homogenization of scientific and academic writing in the process of text constitution, by analyzing aspects related to objectivism and subjectivism in academic texts. The selection of some A1 Brazilian scientific articles from different fields of knowledge was carried out according to specific genre: compositional form, style and theme which delimit texts in terms of objectivism and subjectivism. The work is guided by the dialogic assumptions of the Bakhtin's Circle regarding genres, as well as some authors from the New Literacy Studies framework. Results show that: a) every utterance consists of subjective and objective elements; b) aspects delimiting objectivity and subjectivity are predominantly marked in the compositional and architectural forms and in the text style related to the theme; c) articles of different fields are similar while dealing with elements concerning objectivity, such as compositional form and language resources; d) the articles differ by showing aspects which, although observed in verbal materiality, find meaning in the extra verbal context, pervading subjectivity as a thematic choice as well as some variation in the amount of authors; e) objectivity and subjectivity nuances observed in the discourse allow us to characterize traces of heterogeneous writing in these fields.