cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.21162000.v1
title: Unplanned dilution back analysis in an underground mine using numerical models

description: Abstract In underground mines, stability problems can cause unplanned dilution, increasing the costs of mining operations, such as loading, transport, crushing and grinding. This is usually dealt with by simply increasing investments with support. However, the design geometry of stopes and drifts also has a great effect on a stope’s stability. The use of empirical stability methods is a very common practice, however because of their few input parameters, it cannot predict the actual performance related to each stope and drift design. This study has as main goals a back analysis of the actual dilution, using the Equivalent Linear Overbreak Slough (ELOS) method and analysis in the drift developments at the hanging wall contact, using numerical models. The case study is an underground hard rock gold mine, with a pillar-less Transversal Stope method. The hanging wall failure was quantified using a database from 19 stopes measured by the Cavity Monitoring System (CMS). Numerical finite elements models (FEM) were used, and 5 primary stopes were selected to calibrate models. The volumes of actual dilution showed a good correlation with the volumes of the relaxation zones produced by the models. Then, new optimized drift geometry layouts at the hanging wall contact were proposed, showing a decrease in 2.35 times in the relaxation zone of the numerical models, therefore justifying the use of these models as a dilution optimization tool. This methodology also proved to be useful in the definition of cable bolt length.
DOI: 10.6084/m9.figshare.21162004.v1
title: Analysis of the genetic structure and diversity of a Brazilian macadamia nut (Macadamia integrifolia) germplasm

description: Abstract Macadamia is a nut tree native to Australian rainforest. Due to the small wild populations and the economic interest, studies assessing genetic information are fundamental for use and conservation of this species. Therefore, the present study aimed to assess the structure and genetic diversity of 28 cultivars of macadamia originated from United States, Australia and Brazil, introduced or developed by the Agronomic Institute’s breeding program, using 29 new microsatellite loci. The microsatellite loci showed high genetic diversity (3.65 alleles per locus on average). Our results also suggested the existence of no genetic structure between cultivars, regardless of their geographic origin. The modified Rogers’ distances between cultivars ranged from 0.227 to 0.671. Despite the lack of information about genealogy, the cultivars from this Brazilian germplasm showed moderate genetic diversity, so they can be used as parents in future crosses.
DOI: 10.6084/m9.figshare.21162004
title: Analysis of the genetic structure and diversity of a Brazilian macadamia nut (Macadamia integrifolia) germplasm

description: Abstract Macadamia is a nut tree native to Australian rainforest. Due to the small wild populations and the economic interest, studies assessing genetic information are fundamental for use and conservation of this species. Therefore, the present study aimed to assess the structure and genetic diversity of 28 cultivars of macadamia originated from United States, Australia and Brazil, introduced or developed by the Agronomic Institute’s breeding program, using 29 new microsatellite loci. The microsatellite loci showed high genetic diversity (3.65 alleles per locus on average). Our results also suggested the existence of no genetic structure between cultivars, regardless of their geographic origin. The modified Rogers’ distances between cultivars ranged from 0.227 to 0.671. Despite the lack of information about genealogy, the cultivars from this Brazilian germplasm showed moderate genetic diversity, so they can be used as parents in future crosses.
DOI: 10.6084/m9.figshare.21162007
title: The rise of cyber power in Brazil

description: Abstract The advent of cyber power in inter-state competition is frequently addressed in academic literature skewed towards global powers, commonly overlooking regional powers. The article addresses this gap by investigating how cyber power is conceived and implemented by Brazilian Governmental actors. It draws on the analysis of primary data concerning Brazil’s policy documentation and institutional framework. The article begins with a broader view of cyber power and investigates its relationship with cyber defense and security, illuminating the current Brazilian understanding of cyber power as an operational tool within the military sphere.
DOI: 10.6084/m9.figshare.21162007.v1
title: The rise of cyber power in Brazil

description: Abstract The advent of cyber power in inter-state competition is frequently addressed in academic literature skewed towards global powers, commonly overlooking regional powers. The article addresses this gap by investigating how cyber power is conceived and implemented by Brazilian Governmental actors. It draws on the analysis of primary data concerning Brazil’s policy documentation and institutional framework. The article begins with a broader view of cyber power and investigates its relationship with cyber defense and security, illuminating the current Brazilian understanding of cyber power as an operational tool within the military sphere.
DOI: 10.6084/m9.figshare.21162010
title: The “Table of mineral classification” by Oscar Nerval de Gouvêa: mineralogy and medicine in Brazil

description: Abstract Oscar Nerval de Gouvêa was a scientist and teacher in Rio de Janeiro, Brazil, whose work spanned engineering, medicine, the social sciences, and law. This paper presents and discusses a manuscript entitled “Table of mineral classification,” which he appended to his dissertation Da receptividade mórbida , presented to the Faculty of Medicine in 1889. The foundations and features of the table provide a focus for understanding nineteenth-century mineralogy and its connections in Brazil at that time through this scientist. This text was Gouvêa’s contribution to the various mineral classification systems which have emerged from different parts of the world.
DOI: 10.6084/m9.figshare.21162010.v1
title: The “Table of mineral classification” by Oscar Nerval de Gouvêa: mineralogy and medicine in Brazil

description: Abstract Oscar Nerval de Gouvêa was a scientist and teacher in Rio de Janeiro, Brazil, whose work spanned engineering, medicine, the social sciences, and law. This paper presents and discusses a manuscript entitled “Table of mineral classification,” which he appended to his dissertation Da receptividade mórbida , presented to the Faculty of Medicine in 1889. The foundations and features of the table provide a focus for understanding nineteenth-century mineralogy and its connections in Brazil at that time through this scientist. This text was Gouvêa’s contribution to the various mineral classification systems which have emerged from different parts of the world.
DOI: 10.6084/m9.figshare.21162016
title: BRS Pampa CL: a new IMI herbicide-resistant premium quality grain irrigated rice cultivar

description: Abstract BRS Pampa CL is a rice cultivar developed by Embrapa, recommended for irrigated cultivation in Rio Grande do Sul State, Brazil. It shows modern architecture, high tiller ing, early cycle, and tolerance to the imidazolinone herbicide Kifix®. It stands out for its high yield potential and excellent grain quality.
DOI: 10.6084/m9.figshare.21162016.v1
title: BRS Pampa CL: a new IMI herbicide-resistant premium quality grain irrigated rice cultivar

description: Abstract BRS Pampa CL is a rice cultivar developed by Embrapa, recommended for irrigated cultivation in Rio Grande do Sul State, Brazil. It shows modern architecture, high tiller ing, early cycle, and tolerance to the imidazolinone herbicide Kifix®. It stands out for its high yield potential and excellent grain quality.
DOI: 10.6084/m9.figshare.21162018
title: Abdominal esophagocardiectomy with esophagogastric anastomosis, with vagal preservation and construction of a spiral anti reflux valve in the treatment of advanced megaesophagus

description: ABSTRACT Objective: present a new operative technique characterized by abdominal esophagocardiectomy, with esophagogastrus anastomosis, vagal preservation and spiral anti-reflux valve construction in the treatment of advanced megaesophagus in patients with severe systemic diseases, as well as its result in an initial group of 17 patients. Method: We selected 17 patients with advanced megaesophagus and comorbidities submitted to new technique. The following parameters were analyzed: age, sex, length of hospital stay, early and late complications, mortality, radiological/endoscopic aspects. Results: twelve male patients (70%) and five (30%) were operated on, with mean age of 51.5 years and mean hospital stay of 14.8 days. There was no mortality in the immediate intraoperative or postoperative period and there were no cases of postoperative fistula. During hospitalization there was one case of pulmonary atelectasis (5.8%), one of pleural effusion (5.8%), two of wall infection (11.7%) and one of urinary retention (5.8%). Discussion: We believe it to be an easy technique, made exclusively by the abdominal route, that is, without violating the thoracic cavity. Such a procedure would be beneficial in patients with advanced megaesophagus and important comorbidities, as well as in those with a history of previous surgeries. Conclusion: the technique described was easy to perform and safe, when performed by an experienced team, with low morbidity and mortality in patients with advanced megaesophagus and important comorbidities, which could increase your complications with more invasive and complex surgeries.
DOI: 10.6084/m9.figshare.21162018.v1
title: Abdominal esophagocardiectomy with esophagogastric anastomosis, with vagal preservation and construction of a spiral anti reflux valve in the treatment of advanced megaesophagus

description: ABSTRACT Objective: present a new operative technique characterized by abdominal esophagocardiectomy, with esophagogastrus anastomosis, vagal preservation and spiral anti-reflux valve construction in the treatment of advanced megaesophagus in patients with severe systemic diseases, as well as its result in an initial group of 17 patients. Method: We selected 17 patients with advanced megaesophagus and comorbidities submitted to new technique. The following parameters were analyzed: age, sex, length of hospital stay, early and late complications, mortality, radiological/endoscopic aspects. Results: twelve male patients (70%) and five (30%) were operated on, with mean age of 51.5 years and mean hospital stay of 14.8 days. There was no mortality in the immediate intraoperative or postoperative period and there were no cases of postoperative fistula. During hospitalization there was one case of pulmonary atelectasis (5.8%), one of pleural effusion (5.8%), two of wall infection (11.7%) and one of urinary retention (5.8%). Discussion: We believe it to be an easy technique, made exclusively by the abdominal route, that is, without violating the thoracic cavity. Such a procedure would be beneficial in patients with advanced megaesophagus and important comorbidities, as well as in those with a history of previous surgeries. Conclusion: the technique described was easy to perform and safe, when performed by an experienced team, with low morbidity and mortality in patients with advanced megaesophagus and important comorbidities, which could increase your complications with more invasive and complex surgeries.
DOI: 10.6084/m9.figshare.21162021
title: Granulometric stabilization of laterites from Triângulo Mineiro and Alto Paranaíba for use in base course

description: Abstract The present article presents the study of three laterites from the Triãngulo Mineiro and Alto Paranaíba region, aiming to use it as a pavement base. The methodology used consisted of carrying out the tests prescribed by the DNIT 098/2007 standard and, as a complementary methodology, linear contraction, MCT classification, modulus of resilience and X-ray diffractometry were introduced. Four mixtures of laterite with sand were prepared aiming to correct the plasticity of the materials. Three samples of laterites and three of the four mixtures with sand showed sand equivalent values lower than 30%, showing that this is a characteristic of laterites in the region. Only the mixture LatJ3+A4 (70x30) presented a sand equivalent greater than 30%, but this sample presented the worst plasticity indicators in relation to the other mixtures. These results showed the need for further studies on the use of the sand equivalent of laterites. The linear contraction associated with the liquidity limit proved to be more accurate and efficient for the control of plasticity characteristics than the plasticity index together with the liquidity limit and the sand equivalent.
DOI: 10.6084/m9.figshare.21162021.v1
title: Granulometric stabilization of laterites from Triângulo Mineiro and Alto Paranaíba for use in base course

description: Abstract The present article presents the study of three laterites from the Triãngulo Mineiro and Alto Paranaíba region, aiming to use it as a pavement base. The methodology used consisted of carrying out the tests prescribed by the DNIT 098/2007 standard and, as a complementary methodology, linear contraction, MCT classification, modulus of resilience and X-ray diffractometry were introduced. Four mixtures of laterite with sand were prepared aiming to correct the plasticity of the materials. Three samples of laterites and three of the four mixtures with sand showed sand equivalent values lower than 30%, showing that this is a characteristic of laterites in the region. Only the mixture LatJ3+A4 (70x30) presented a sand equivalent greater than 30%, but this sample presented the worst plasticity indicators in relation to the other mixtures. These results showed the need for further studies on the use of the sand equivalent of laterites. The linear contraction associated with the liquidity limit proved to be more accurate and efficient for the control of plasticity characteristics than the plasticity index together with the liquidity limit and the sand equivalent.
DOI: 10.6084/m9.figshare.21162022
title: Minimally Invasive Glaucoma Surgery (MIGS): an updated literature review

description: ABSTRACT Glaucoma is considered the biggest cause of irreversible blindness in the world and the increase in intraocular pressure is its main risk factor. Usually, the initial therapy for glaucoma consists of reducing IOP through the instillation of topical hypotensive drugs, with antiglaucoma surgeries being normally reserved for cases in which disease control is not clinically achieved. Classically, the surgical treatment of glaucoma is performed using filtering procedures: trabeculectomy; non-penetrating sclerotomy and glaucoma drainage devices. The acronym MIGS (Minimally Invasive Glaucoma Surgery) corresponds to a group of minimally invasive surgical procedures that provide a safer and more predictable pressure reduction when compared to conventional antiglaucoma surgical techniques.
DOI: 10.6084/m9.figshare.21162022.v1
title: Minimally Invasive Glaucoma Surgery (MIGS): an updated literature review

description: ABSTRACT Glaucoma is considered the biggest cause of irreversible blindness in the world and the increase in intraocular pressure is its main risk factor. Usually, the initial therapy for glaucoma consists of reducing IOP through the instillation of topical hypotensive drugs, with antiglaucoma surgeries being normally reserved for cases in which disease control is not clinically achieved. Classically, the surgical treatment of glaucoma is performed using filtering procedures: trabeculectomy; non-penetrating sclerotomy and glaucoma drainage devices. The acronym MIGS (Minimally Invasive Glaucoma Surgery) corresponds to a group of minimally invasive surgical procedures that provide a safer and more predictable pressure reduction when compared to conventional antiglaucoma surgical techniques.
DOI: 10.6084/m9.figshare.21162028
title: Onco-hematological patient care in times of COVID-19: a scoping review

description: ABSTRACT Objective: to identify and map health care aimed at onco-hematological patients in times of Coronavirus 2019. Methods: this is a scoping review, anchored in the Joanna Briggs Institute theoretical framework, registered in the Open Science Framework, with searches carried out in June 2021, through searches in the databases. Results: a final sample consisting of 20 articles was obtained, with emphasis on general care, treatment and stem cell donation. The most reported care was the use of telemedicine, screening for Coronavirus Disease 2019, compliance with prevention practices and, in case of infection, postponing procedures. Conclusions: the study gathered the main evidence on care aimed at treating these patients in times of a pandemic. Such measures help in the clinical management with the objective of proceeding with treatment amidst the injuries caused, thus minimizing possible complications.
DOI: 10.6084/m9.figshare.21162028.v1
title: Onco-hematological patient care in times of COVID-19: a scoping review

description: ABSTRACT Objective: to identify and map health care aimed at onco-hematological patients in times of Coronavirus 2019. Methods: this is a scoping review, anchored in the Joanna Briggs Institute theoretical framework, registered in the Open Science Framework, with searches carried out in June 2021, through searches in the databases. Results: a final sample consisting of 20 articles was obtained, with emphasis on general care, treatment and stem cell donation. The most reported care was the use of telemedicine, screening for Coronavirus Disease 2019, compliance with prevention practices and, in case of infection, postponing procedures. Conclusions: the study gathered the main evidence on care aimed at treating these patients in times of a pandemic. Such measures help in the clinical management with the objective of proceeding with treatment amidst the injuries caused, thus minimizing possible complications.
DOI: 10.6084/m9.figshare.21162040
title: Perspectives in Training and Professional Practice of Cardiac Surgery in Latin America

description: ABSTRACT Introduction: There is a lack of information about cardiac surgery training and professional practice in Latin American (LATAM) countries. This study is the first comparative analysis of cardiac surgical training and professional practice across LATAM and provides the fundamentals for future academic projects of the Latin American Association of Cardiac and Endovascular Surgery (LACES). Methods: International survey-based comparative analysis of the training and professional practice of cardiac surgeons across LATAM. Trainees (residents/fellows) and staf (graduated) surgeons from LATAM countries were included. Results: A total of 289 respondents (staf surgeons N=221 [76.5%]; residents/fellows N=68 [23.5%]) from 18 different countries participated in the survey. Most surgeons (N=92 [45.3%]) reported being unsatisfied with their salaries. Most respondents (N=181 [62.6%]) stated that it was difficult to obtain a leadership position, and 149 (73.8%) stated that it was difficult to find a job after completing training. Only half of the trainee respondents (N=32 [47.1%]) reported that their program had all resident spots occupied. Only 22.1% (N=15) of residents/fellows were satisfied with their training programs. The majority (N=205 [70.9%]) of respondents would choose cardiac surgery as their specialty again. Most surgeons (N=129 [63.9%]) and residents/fellows (N=52 [76.5%]) indicated that the establishment of a LATAM cardiac surgery board examination would be beneficial. Conclusion: Modernization and standardization of training, as well as greater access to opportunities, may be required in LATAM to increase professional satisfaction of cardiac surgeons and to reduce disparities in the specialty. Such changes may enhance the regional response to the dynamic challenges in the feld.
DOI: 10.6084/m9.figshare.21162040.v1
title: Perspectives in Training and Professional Practice of Cardiac Surgery in Latin America

description: ABSTRACT Introduction: There is a lack of information about cardiac surgery training and professional practice in Latin American (LATAM) countries. This study is the first comparative analysis of cardiac surgical training and professional practice across LATAM and provides the fundamentals for future academic projects of the Latin American Association of Cardiac and Endovascular Surgery (LACES). Methods: International survey-based comparative analysis of the training and professional practice of cardiac surgeons across LATAM. Trainees (residents/fellows) and staf (graduated) surgeons from LATAM countries were included. Results: A total of 289 respondents (staf surgeons N=221 [76.5%]; residents/fellows N=68 [23.5%]) from 18 different countries participated in the survey. Most surgeons (N=92 [45.3%]) reported being unsatisfied with their salaries. Most respondents (N=181 [62.6%]) stated that it was difficult to obtain a leadership position, and 149 (73.8%) stated that it was difficult to find a job after completing training. Only half of the trainee respondents (N=32 [47.1%]) reported that their program had all resident spots occupied. Only 22.1% (N=15) of residents/fellows were satisfied with their training programs. The majority (N=205 [70.9%]) of respondents would choose cardiac surgery as their specialty again. Most surgeons (N=129 [63.9%]) and residents/fellows (N=52 [76.5%]) indicated that the establishment of a LATAM cardiac surgery board examination would be beneficial. Conclusion: Modernization and standardization of training, as well as greater access to opportunities, may be required in LATAM to increase professional satisfaction of cardiac surgeons and to reduce disparities in the specialty. Such changes may enhance the regional response to the dynamic challenges in the feld.
DOI: 10.6084/m9.figshare.21162043
title: Agroindustrial performance and heterosis in sweet sorghum using male-sterile lines with high stem sugar content

description: Abstract The objective of this study was to evaluate the performance of hybrids and the heterosis in crosses of sweet sorghum using juicy sweet male-sterile lines and fertility-restoring lines with and without sensitivity to photoperiod. Thirty hybrids and six controls were evaluated in experiments laid out in a 6 × 6 triple lattice design. The genotypes differed for all traits. The general combining ability (GCA) of the R lines affected all traits, while the GCA of the A lines only affected juice extraction, total soluble solids, and tons of Brix per hectare (TBH). The photosensitive-restoring line CMSXS5022 had the highest positive GCA estimates for the fresh mass production and TBH traits. Heterosis was significant only for days to flowering and plant height. Overall, the photoperiod-sensitive hybrids stood out. The development of male-sterile lines requires better complementarity from restoring lines to reap the benefits of heterosis.