cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7678037.v1
title: Flora of the Parque Estadual do Ibitipoca, Estado de Minas Gerais, Brazil: Begoniaceae C. Agardh

description: ABSTRACT A taxonomic survey for Begoniaceae occurring in the Parque Estadual do Ibitipoca (PEIB), Minas Gerais State, Brazil is presented. Eight species of Begonia were found in the Park (B. altamiroi, B. angularis, B. angulata, B. apparicioi, B. cucullata, B. fischeri, B. luxurians and B. rufa), which are distinguished mainly by their general aspect and by the characteristics of leaves, such as, indumentum and blade shape. Of the total of species found, six are restricted to Brazil, whilst five are endemic from the Atlantic Forest. This study was based on a bibliographic review, consult to the main Brazilian herbaria and field observations. Descriptions, illustrations, and comments are also presented for each species. A key to all species is included.
DOI: 10.7284/106310
title: GNSS (Global Navigation Satellite System) data collected during research cruise BH11-26 using a Northstar 941X instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7678025
title: Edaphic fauna in a vegetation gradient in the Sete Cidades National Park

description: Abstract The vegetation physionomy and cover can show patterns of diversity and composition of the edaphic community, depending on the quantity and quality of litter in a specific habitat. The objective of this study was to evaluate the effect of the vegetation gradient formed by Graminoid Field (GRF), Cerrado Sensu Stricto (CSS), Cerradão (CRD) and Semideciduous Seasonal Forest (SSF) on density, diversity and composition of the edaphic fauna community in two seasons of the year, in the Sete Cidades National Park (Piauí state). For fauna sampling, a total of eight pitfall traps, distanced 10 m, were placed in each area in the central part of each system, where they remained for seven days. In the wet period, there was a tendency to increase the number of individuals as a function of the complexity of the vegetation formation, with the inverse occurring in the dry period. It was verified an environmental variation of the climatic factors temperature and humidity according to the vegetal formation, contributing to a heterogeneous distribution of the fauna. The GRF formation presented a significantly lower value of average richness only in the dry period. Regarding the variables of diversity and uniformity, they did not show drastic variations in relation to the vegetation gradient studied. The dominant groups in the vegetation gradient were Formicidae, Coleoptera, Aranae, Acari and Collembola, with reduction of the number of Coleoptera in the dry season. Principal component analysis (PCA) revealed greater differences in the composition of the communities between the vegetation formations for the rainy season. At this time, the formations SSF and CRD were associated to a greater diversity of invertebrates than CSS and GRF, demonstrating the influence of the vegetation complexity on the soil fauna community.
DOI: 10.6084/m9.figshare.7678028.v1
title: Are there differences in birth weight according to sex and associations with maternal exposure to air pollutants? A cohort study

description: ABSTRACT CONTEXT AND OBJECTIVE: Several effects of exposure to air pollutants on human health are known. The aim of this study was to identify whether exposure of pregnant women to air pollutants contributes towards low birth weight and which sex is more affected. DESIGN AND SETTING: Longitudinal study using data on newborns from mothers living in São José do Rio Preto (SP) who were exposed to air pollutants in 2012-2013. METHODS: A hierarchical model on three levels was built using maternal and newborn variables and environmental concentrations of particulate matter, ozone and nitrogen dioxide in quartiles. Preterm new-borns, twins and newborns with birth defects were excluded and exposure windows of 30, 60 and 90 days before delivery were considered. RESULTS: 8,948 newborns were included: 4,491 males (50.2%) and 4,457 females (49.8%); 301 newborns presented low birth weight (3.4%). The mean weight differed between males (3281.0 g) and females (3146.4 g) (P &lt; 0.001). Exposure to ozone was significantly associated with low birth weight in both sexes in the 30-day window (odds ratio, OR = 1.38) and 90-day window (OR = 1.48); and among females, in the 30-day window (OR = 1.58) and 90-day window (OR = 1.59). Exposure to particulate matter had a paradoxical protective effect. No association was found among male newborns. CONCLUSIONS: Female newborns showed greater susceptibility to maternal exposure to air pollutants. Studies on low birth weight in relation to maternal exposure to air pollutants should deal with males and females separately.
DOI: 10.6084/m9.figshare.7678034.v1
title: Telecardiology on the Diagnostic Support of Chest Pain in Twenty-Two Emergency Care Units (UPA 24h) in The State of Rio de Janeiro

description: Abstract Background: Telecardiology may be a useful support in diagnosis and management of chest pain. Objective: Evaluate the application of telecardiology to support the differential diagnosis of chest pain in patients admitted to Emergency Care Units. Method: Observational, retrospective and documental study of 5,816 patients admitted with supposedly cardiological chest pain in twenty two Emergency Care Units in the state of Rio de Janeiro. Data were tabulated and analyzed by Excel® software, using simple descriptive statistics, from the database of the Cardiology Consultancy Nucleus. Results: Diagnostic disagreement was found in 1,593 (27.39%) cases. Of these, 1,477 (92.72%) were diagnosed locally as non-ST-elevation myocardial infarction (non-STEMI), 74 (4.64%) as acute myocardial infarction with ST-segment elevation (STEMI), 40 (2.52%) as acute pulmonary edema (APE) and 2 (0.12%) as tachyarrhythmia. Intensive care referral was requested to 100% of these patients. After telecardiology, the diagnoses were: 385 (24.17%) unstable angina, 289 (18.14%) congestive heart failure, 212 (13.31%) APE, 174 (10.92%) STEMI, 152 (9.54%) hypertensive emergency, 113 (7.09%) acute chronic renal failure, 89 (5.59%) non-STEMI, 89 (5.59%) pneumonia, 39 (2.45%) sepsis, 26 (1.63 %) myopericarditis, 20 (1.26%) tachyarrhythmia and 5 (0.31%) orovalvar disease. The outcome after telecardiology was 1,178 discharges (73.94%), 338 (21.21%) referrals, 62 (3.90%) deaths and 15 (0.95%) unknown. Conclusion: Telecardiology was effective in chest pain diagnosis and management, optimizing hospital admission in the public health system.
DOI: 10.6084/m9.figshare.7678022
title: VALIDITY AND RELIABILITY OF THE MANCHESTER SCALE USED IN THE ORTHOPEDIC EMERGENCY DEPARTMENT

description: ABSTRACT Objectives: To describe the clinical utility of the Manchester triage scale adapted for orthopedic emergency departments and to evaluate its validity in identifying patients with the need for hospital care and its reliability when reproduced by different professionals. Methods: Five triage flowcharts were developed based on the Manchester scale for the following orthopedic disorders: traumatic injuries, joint pain, vertebral pain, postoperative disorders, and musculoskeletal infections. A series of patients triaged by two orthopedists was analyzed to assess the concordance between the evaluators (reliability) and the validity of the Manchester scale as predictive of severity. Results: The reliability analysis included 231 patients, with an inter-observer agreement of 84% (Kappa = 0.77, p &lt;0.001). The validity analysis included 138 patients. The risk category had a strong association with the need for hospital care in patients with trauma (OR = 6.57, p = 0.001) and was not significant for non-traumatic disorders (OR = 2.42; p = 0.208). The overall sensitivity and specificity were 64% and 76%, respectively. Conclusion: The evaluated system presented high reliability. Its validity was adequate, with good sensitivity for identifying patients requiring hospital care among those with traumatic lesions. However, the sensitivity was low for patients with non-traumatic lesions. Level of Evidence III, Retrospective Study.
DOI: 10.6084/m9.figshare.7678022.v1
title: VALIDITY AND RELIABILITY OF THE MANCHESTER SCALE USED IN THE ORTHOPEDIC EMERGENCY DEPARTMENT

description: ABSTRACT Objectives: To describe the clinical utility of the Manchester triage scale adapted for orthopedic emergency departments and to evaluate its validity in identifying patients with the need for hospital care and its reliability when reproduced by different professionals. Methods: Five triage flowcharts were developed based on the Manchester scale for the following orthopedic disorders: traumatic injuries, joint pain, vertebral pain, postoperative disorders, and musculoskeletal infections. A series of patients triaged by two orthopedists was analyzed to assess the concordance between the evaluators (reliability) and the validity of the Manchester scale as predictive of severity. Results: The reliability analysis included 231 patients, with an inter-observer agreement of 84% (Kappa = 0.77, p &lt;0.001). The validity analysis included 138 patients. The risk category had a strong association with the need for hospital care in patients with trauma (OR = 6.57, p = 0.001) and was not significant for non-traumatic disorders (OR = 2.42; p = 0.208). The overall sensitivity and specificity were 64% and 76%, respectively. Conclusion: The evaluated system presented high reliability. Its validity was adequate, with good sensitivity for identifying patients requiring hospital care among those with traumatic lesions. However, the sensitivity was low for patients with non-traumatic lesions. Level of Evidence III, Retrospective Study.
DOI: 10.6084/m9.figshare.7678025.v1
title: Edaphic fauna in a vegetation gradient in the Sete Cidades National Park

description: Abstract The vegetation physionomy and cover can show patterns of diversity and composition of the edaphic community, depending on the quantity and quality of litter in a specific habitat. The objective of this study was to evaluate the effect of the vegetation gradient formed by Graminoid Field (GRF), Cerrado Sensu Stricto (CSS), Cerradão (CRD) and Semideciduous Seasonal Forest (SSF) on density, diversity and composition of the edaphic fauna community in two seasons of the year, in the Sete Cidades National Park (Piauí state). For fauna sampling, a total of eight pitfall traps, distanced 10 m, were placed in each area in the central part of each system, where they remained for seven days. In the wet period, there was a tendency to increase the number of individuals as a function of the complexity of the vegetation formation, with the inverse occurring in the dry period. It was verified an environmental variation of the climatic factors temperature and humidity according to the vegetal formation, contributing to a heterogeneous distribution of the fauna. The GRF formation presented a significantly lower value of average richness only in the dry period. Regarding the variables of diversity and uniformity, they did not show drastic variations in relation to the vegetation gradient studied. The dominant groups in the vegetation gradient were Formicidae, Coleoptera, Aranae, Acari and Collembola, with reduction of the number of Coleoptera in the dry season. Principal component analysis (PCA) revealed greater differences in the composition of the communities between the vegetation formations for the rainy season. At this time, the formations SSF and CRD were associated to a greater diversity of invertebrates than CSS and GRF, demonstrating the influence of the vegetation complexity on the soil fauna community.
DOI: 10.6084/m9.figshare.7678013
title: CLINICAL EVALUATION OF PATIENTS WITH VANCOMYCIN SPACER RETAINED FOR MORE THAN 12 MONTHS

description: ABSTRACT Objective: There is no consensus in the literature regarding the time taken to remove antibiotic spacers in the treatment of bone infections. The aim of this study is to evaluate the clinical results of patients with prolonged retention of the same. Methods: Patients selected were diagnosed with post-osteosynthesis infection and/or osteomyelitis and were submitted to treatment using an orthopedic cement spacer (polymethylmethacrylate) with vancomycin, retaining it for a period of more than 12 months. They were clinically evaluated to determine the presence of local or systemic infectious signs via hemogram, investigations of inflammatory markers, liver, renal and, with radiographic control. Results: Eighteen patients were included in the study. The mean retention time of the spacer was 30.4 months (15 – 61 months). No patient had clinical signs of local or systemic infectious relapse at the time of evaluation. Seven patients (39%) presented non-disabling pain in the operated limb. Seventeen patients (94%) presented a reduction in C-reactive protein values compared to the preoperative period. Radiographically, no migration, no spacer failure, or bone sequestration occurred. Conclusion: In this retrospective case series, cement spacer retention with vancomycin for more than 12 months was associated with good clinical results, without relapse of the infectious condition. Nível de Evidência IV. Estudos Terapêuticos - Investigação dos Resultados do Tratamento.
DOI: 10.6084/m9.figshare.7678016
title: ACETABULAR RECONSTRUCTION IN PAPROSKY TYPE III DEFECTS

description: ABSTRACT Objectives: Severe pelvic deficiency presents a difficult problem in hip arthroplasty. Specifically, the goals are to restore the pelvic bone stock, place the acetabular component in the correct anatomical position, and optimize joint stability. Currently, many surgical techniques have been developed for prosthetic revision surgery for acetabular complex defects, but no consensus has been reached on the best treatment. The objective of this study was to review mid-term cases of severe bone defect (Paprosky type III) treated with a bone allograft and ring Bursch-Schneider anti-protrusion cage (BSAC). Methods: A retrospective consecutive series review of the first 23 complex acetabular reconstructions performed between 2006 and 2011 was conducted. The series included the learning curve of the procedure and a minimum 5-year follow-up. Conclusion: Our study confirmed the efficacy of using a frozen morselized allograft combined with a metal ring-type BSAC for acetabular reconstruction. The anatomical location of the center of rotation of the hip must be recovered for long-term success. In massive loosening cases, the anatomical center of rotation can only be restored by bone density reconstruction using a graft protected by a ring to improve the centering of the head. Level of Evidence IV, Case Series.
DOI: 10.7284/111760
title: CTD (Conductivity, Temperature, Depth) data collected during research cruise BH11-27 using a Sea-Bird SBE-911+ instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7678010
title: FACTORS ASSOCIATED WITH LOW CONCERN ABOUT FALLING IN PHYSICALLY ACTIVE OLDER PEOPLE

description: ABSTRACT Introduction: Fear of falling is one of the main consequences of falls in the elderly; therefore, it is important to investigate the factors associated with the reduction of this fear. Objective: The objective of this study consisted of verifying the associated factors that best explain the low concern about falling in physically active older people. Methods: A total of 162 elderly people with a mean age of 69.95 (SD = 6.69) participated in the study. The diagnostic data sheet, the Falls Efficacy Scale-International, the Senior Fitness Test and anthropometric measurements were used to obtain data. Binary Logistic Regression was used in the data analysis to estimate the Odds Ratio (OR) and 95% confidence intervals (95% CI). The p &lt;0.05 Omnibus Test was used to assess the quality of the adjusted model, and the Hosmer-Lemeshow test was applied to verify the explanatory power of the model. Results: In the crude analysis, normal weight elderly subjects (OR = 2.86, 95% CI = 1.32-6.20) with good levels of lower limb strength (OR = 2.64, 95% CI = 1.38-5.06), are more likely to have low fear of falling. In the adjusted analysis, the model was able to explain 75% of endpoint occurrence. Conclusion: It is concluded that among the variables analyzed, age, BMI and lower limb strength best explain the low concern about falling in the elderly. Level of Evidence III; Study of nonconsecutive patients; without consistently applied reference “gold” standard.
DOI: 10.6084/m9.figshare.7678013.v1
title: CLINICAL EVALUATION OF PATIENTS WITH VANCOMYCIN SPACER RETAINED FOR MORE THAN 12 MONTHS

description: ABSTRACT Objective: There is no consensus in the literature regarding the time taken to remove antibiotic spacers in the treatment of bone infections. The aim of this study is to evaluate the clinical results of patients with prolonged retention of the same. Methods: Patients selected were diagnosed with post-osteosynthesis infection and/or osteomyelitis and were submitted to treatment using an orthopedic cement spacer (polymethylmethacrylate) with vancomycin, retaining it for a period of more than 12 months. They were clinically evaluated to determine the presence of local or systemic infectious signs via hemogram, investigations of inflammatory markers, liver, renal and, with radiographic control. Results: Eighteen patients were included in the study. The mean retention time of the spacer was 30.4 months (15 – 61 months). No patient had clinical signs of local or systemic infectious relapse at the time of evaluation. Seven patients (39%) presented non-disabling pain in the operated limb. Seventeen patients (94%) presented a reduction in C-reactive protein values compared to the preoperative period. Radiographically, no migration, no spacer failure, or bone sequestration occurred. Conclusion: In this retrospective case series, cement spacer retention with vancomycin for more than 12 months was associated with good clinical results, without relapse of the infectious condition. Nível de Evidência IV. Estudos Terapêuticos - Investigação dos Resultados do Tratamento.
DOI: 10.6084/m9.figshare.7678016.v1
title: ACETABULAR RECONSTRUCTION IN PAPROSKY TYPE III DEFECTS

description: ABSTRACT Objectives: Severe pelvic deficiency presents a difficult problem in hip arthroplasty. Specifically, the goals are to restore the pelvic bone stock, place the acetabular component in the correct anatomical position, and optimize joint stability. Currently, many surgical techniques have been developed for prosthetic revision surgery for acetabular complex defects, but no consensus has been reached on the best treatment. The objective of this study was to review mid-term cases of severe bone defect (Paprosky type III) treated with a bone allograft and ring Bursch-Schneider anti-protrusion cage (BSAC). Methods: A retrospective consecutive series review of the first 23 complex acetabular reconstructions performed between 2006 and 2011 was conducted. The series included the learning curve of the procedure and a minimum 5-year follow-up. Conclusion: Our study confirmed the efficacy of using a frozen morselized allograft combined with a metal ring-type BSAC for acetabular reconstruction. The anatomical location of the center of rotation of the hip must be recovered for long-term success. In massive loosening cases, the anatomical center of rotation can only be restored by bone density reconstruction using a graft protected by a ring to improve the centering of the head. Level of Evidence IV, Case Series.
DOI: 10.6084/m9.figshare.7678007
title: Feynman's optical focusing system

description: Abstract We analyze the behavior of an optical focusing system, used by Richard Feynman in his famous physics classes. The system is a biconvex optical lens with symmetry of revolution around an axis, defined by the property that the rays that start from a point source, located in a focus on the axis, converge to an image point on the other side of the lens, so that the light waves on them arrive simultaneously at this last point. This ensures that the waves of a given frequency, traveling according to different paths from one focus to the other through air and glass, complete the same number of cycles when they reach the image point and therefore interfere in phase with each other. In this work we explicitly show that the profile of the Feynman lens must be hyperbolic, a form that for paraxial rays eliminates the spherical aberration (but not the chromatic aberration) of the lens.
DOI: 10.6084/m9.figshare.7678010.v1
title: FACTORS ASSOCIATED WITH LOW CONCERN ABOUT FALLING IN PHYSICALLY ACTIVE OLDER PEOPLE

description: ABSTRACT Introduction: Fear of falling is one of the main consequences of falls in the elderly; therefore, it is important to investigate the factors associated with the reduction of this fear. Objective: The objective of this study consisted of verifying the associated factors that best explain the low concern about falling in physically active older people. Methods: A total of 162 elderly people with a mean age of 69.95 (SD = 6.69) participated in the study. The diagnostic data sheet, the Falls Efficacy Scale-International, the Senior Fitness Test and anthropometric measurements were used to obtain data. Binary Logistic Regression was used in the data analysis to estimate the Odds Ratio (OR) and 95% confidence intervals (95% CI). The p &lt;0.05 Omnibus Test was used to assess the quality of the adjusted model, and the Hosmer-Lemeshow test was applied to verify the explanatory power of the model. Results: In the crude analysis, normal weight elderly subjects (OR = 2.86, 95% CI = 1.32-6.20) with good levels of lower limb strength (OR = 2.64, 95% CI = 1.38-5.06), are more likely to have low fear of falling. In the adjusted analysis, the model was able to explain 75% of endpoint occurrence. Conclusion: It is concluded that among the variables analyzed, age, BMI and lower limb strength best explain the low concern about falling in the elderly. Level of Evidence III; Study of nonconsecutive patients; without consistently applied reference “gold” standard.
DOI: 10.7284/106311
title: GNSS (Global Navigation Satellite System) data collected during research cruise BH11-27 using a Northstar 941X instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7678001
title: The quest for the ideal glass: an optimization study in heat transfer

description: Abstract In this work, an analysis is presented of the problem of a liquid contained in a glass, being heated by the environment while being consumed. The issue was suggested by the consumption of beverages such as beer, that consumers wish to keep as cold as possible while drinking. The study proposes a passive solution to the problem, optimizing the shape of the glass to ensure minimum heat transfer, with no use of insulating materials. The glass was modeled as a body of revolution generated by a smooth curve S, made of material with negligible thermal resistance at the revolution surface and insulated at the bottom. The result obtained is a family of optimum curves, capable of generating a glass thaat can be manufactured by conventional methods.