cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.8987705
title: The cost of stroke in a public hospital in Brazil: a one-year prospective study

description: ABSTRACT Low- and middle-income countries face tight health care budgets, not only new resources, but also costly therapeutic resources for treatment of ischemic stroke (IS). However, few prospective data about stroke costs including cerebral reperfusion from low- and middle-income countries are available. Objective To measure the costs of stroke care in a public hospital in Joinville, Brazil. Methods We prospectively assessed all medical and nonmedical costs of inpatients admitted with a diagnosis of any stroke or transient ischemic attack over one year, analyzed costs per type of stroke and treatment, length of stay (LOS) and compared hospital costs with government reimbursement. Results We evaluated 274 patients. The total cost for the year was US$1,307,114; the government reimbursed the hospital US$1,095,118. We found a significant linear correlation between LOS and costs (r = 0.71). The median cost of 134 IS inpatients who did not undergo cerebral reperfusion (National Institutes of Health Stroke Scale [NIHSS] median = 3 ) was US$2,803; for IS patients who underwent intravenous (IV) alteplase (NIHSS 10), the median was US$5,099, and for IS patients who underwent IV plus an intra-arterial (IA) thrombectomy (NIHSS &gt; 10), the median cost was US$10,997. The median costs of a primary intracerebral hemorrhage, subarachnoid hemorrhage, and transient ischemic attack were US$2,436, US$8,031 and US$2,677, respectively. Conclusions Reperfusion treatments were two-to-four times more expensive than conservative treatment. A cost-effectiveness study of the IS treatment option is necessary.
DOI: 10.6084/m9.figshare.8987708.v1
title: SHORELINE MONITORING BY GNSS-PPP AIMING TO ATTENDANCE THE LAW 14.258/2010 FROM PERNAMBUCO STATE, BRAZIL

description: Abstract The geodetic shoreline positioning has socioeconomic importance due to decision-making support related to the coastal zone. The Pernambuco state, Brazil, has established a state law no. 14.258/2010 sanctioned as part of Coastal Zone Management State Policy. The state act no. 42.010/2015 enacted the baseline information for Pernambuco shoreline. Considering that the shoreline mapping benefits from GNSS positioning using relative or absolute methods, the absolute PPP was the choice for legislation support. Therefore, the aim of this work is to depict about the Pernambuco state law and analyze the kinematic PPP accuracy applied to shoreline monitoring in order to attend the state act. The relative GNSS method was adopted as reference to assess the PPP accuracy for the Pernambuco shoreline. The analyses for each sector involved approximately one hour of kinematic GNSS data and the results indicate horizontal positioning accuracy around 0.50 m after PPP convergence period. Several PPP re-initialization has been detected, however, points considered outliers are removed from the final product. For this reason, recommendations are provided to improve the positioning applied for coastal zone monitoring. Although, the carried out experiments shows that PPP can be adopted as a practical tool to support the Pernambuco Coastal Zone Management.
DOI: 10.6084/m9.figshare.8987711.v1
title: Association of Dietary Patterns with Excess Weight and Body Adiposity in Brazilian Children: The Pase-Brasil Study

description: Abstract Background: Obesity is a multifactorial disease and a serious public health problem. Some of the associated factors are modifiable and, among them, the diet is highlighted. Objective: To evaluate the association of dietary patterns of schoolchildren with obesity and body adiposity. Methods: A cross-sectional study was carried out with 378 children aged 8 and 9 years, enrolled in urban schools in the city of Viçosa, Minas Gerais, Brazil. A semi-structured questionnaire was applied to the children and their caregivers on sociodemographic characteristics and life habits. Three 24-hour food recalls were used to identify dietary patterns; the Principal Component Analysis was employed. Weight and height were measured for the calculation of the body mass index (BMI) of the children and their mothers, waist circumference and neck circumference. Body composition was also evaluated through dual-energy X-ray absorptiometry (DXA). For all performed tests, the level of significance was set at 5%. Results: Five dietary patterns (DP) were identified: “unhealthy”, “snacks”, “traditional”, “industrialized” and “healthy”. There was an association between excess weight (prevalence ratio [PR]: 1.38, 95% confidence interval [95%CI]: 1.02 to 1.87) and body fat (PR: 1.32, 95%CI : 1.07 to 1.64) with industrialized DP. There was an association between excess body fat (PR: 1.31, 95%CI: 1.01 to 1.74) and lower adherence to traditional DP. The other patterns were not associated with obesity and body adiposity. Conclusion: Children with excess weight and body adiposity showed greater adherence to the industrialized DP and lower adherence to the traditional DP. We suggest that early assessments of dietary habits should be undertaken for monitoring and modifying these habits when necessary.
DOI: 10.6084/m9.figshare.8987702.v1
title: Performance of the Groenevelt and Grant Model for Fitting Soil Water Retention Data from Brazilian Soils

description: ABSTRACT The soil water retention curve (SWRC) is essential for vadose zone hydrological modeling and related applications. In 2004, Groenevelt and Grant (GRT) presented a mathematical model for describing the SWRC and reported its mathematical versatility and good fit to soils from a Dutch database. In order to evaluate the application of GRT to SWRCs of Brazilian soils, we aimed to analyze the performance of GRT for 72 soils from Brazil. Besides that, the obtained results with GRT for these soils were compared to the fitting performance of the most frequently used models: Brooks and Corey (BC) and van Genuchten-Mualem (VGM). The three models were fitted to available soil water retention data by minimizing the sum of square errors. The Pearson correlation coefficient (r) and the Root Mean Square Error (RMSE) were used to assess the goodness-of-fit. Results showed high correlation coefficients (r≥0.95) and small values of RMSE (RMSE ≤0.03 cm3 cm-3) for all fits. The goodness-of-fit was of similar performance for the three models with a positively correlation between them. The major difference in shape among GRT, BC, and VGM occurred in the near saturated range, while they were almost identical for low matric potentials. The exponent of GRT showed to be highly correlated with exponents of BC and VGM, but the correlation between the other shape parameters is not well defined, making a direct conversion still difficult.
DOI: 10.6084/m9.figshare.8987696
title: Mitigation of drought stress effects on soybean gas exchanges induced by Azospirillum brasilense and plant regulators

description: ABSTRACT Drought stress is a limitation for the agricultural production, having as a primary effect the reduction of plant gas exchanges, and the continuity of its incidence results in a lower yield. This study aimed to evaluate the photosynthetic responses and the soybean yield, concerning the seed inoculation and foliar spray with Azospirillum brasilense and plant regulator containing auxin, gibberellin and cytokinin. A randomized complete block design was used under greenhouse conditions, with five treatments: four under drought stress (control, seed inoculation and foliar spray with A. brasilense and plant regulator) and one irrigated treatment. The soil gravimetric moisture, relative water content, CO2 net assimilation rate, apparent quantum efficiency, light compensation point and grain yield were evaluated. The water deficiency reduced the relative water content by 76.96 % and the soybean gas exchanges by 860.43 %, in the drought stress control. However, when using A. brasilense or plant regulator, the reduction of these values was mitigated, with maximum reductions of 52.40 % in the relative water content and 361.99 % in the gas exchanges. Thus, the mitigation of these effects was directly correlated with the grains yielded by plants, where the use of foliar spray with A. brasilense or plant regulator presented averages 19 % higher than the drought stress control. The applications of foliar spray with A. brasilense and plant regulator mitigate the effects of drought stress on the soybean photosynthesis and culminate in lower yield losses.
DOI: 10.6084/m9.figshare.8987699
title: GIVE ME “AGÔ” TO TALK ABOUT TRADITIONAL AFRICAN MATRIX KNOWLEDGE IN CHEMISTRY TEACHING

description: This paper presents the results of a participant research. We represent the science class-room as conditioned by the heterogeneity of the identities constituting it from positions that are defined and legitimized by our social structure. We present a pedagogical intervention (PI) entitled “Traditional knowledge of African-matrix peoples and communities”. The PI was audio and video recorded and analyzed using Discourse Analysis. Our results show that the religiosity of Brazilian African-matrix is nowadays a resignification of the cults of various ethnic groups in the African continent, in this sense, the plants and leaves were incorporated to people’s everyday life. Plants perform a sacral role of symbolic value and a functional role through its chemical components. We understand scientific knowledge is not traditional knowledge, but it relates to it. Our results show how it is possible to bring these topics to the Chemistry class-room. To establish a dialogue among these various forms of interacting with the world is necessary to break up with the epistemicide reaching our classrooms.
DOI: 10.6084/m9.figshare.8987705.v1
title: The cost of stroke in a public hospital in Brazil: a one-year prospective study

description: ABSTRACT Low- and middle-income countries face tight health care budgets, not only new resources, but also costly therapeutic resources for treatment of ischemic stroke (IS). However, few prospective data about stroke costs including cerebral reperfusion from low- and middle-income countries are available. Objective To measure the costs of stroke care in a public hospital in Joinville, Brazil. Methods We prospectively assessed all medical and nonmedical costs of inpatients admitted with a diagnosis of any stroke or transient ischemic attack over one year, analyzed costs per type of stroke and treatment, length of stay (LOS) and compared hospital costs with government reimbursement. Results We evaluated 274 patients. The total cost for the year was US$1,307,114; the government reimbursed the hospital US$1,095,118. We found a significant linear correlation between LOS and costs (r = 0.71). The median cost of 134 IS inpatients who did not undergo cerebral reperfusion (National Institutes of Health Stroke Scale [NIHSS] median = 3 ) was US$2,803; for IS patients who underwent intravenous (IV) alteplase (NIHSS 10), the median was US$5,099, and for IS patients who underwent IV plus an intra-arterial (IA) thrombectomy (NIHSS &gt; 10), the median cost was US$10,997. The median costs of a primary intracerebral hemorrhage, subarachnoid hemorrhage, and transient ischemic attack were US$2,436, US$8,031 and US$2,677, respectively. Conclusions Reperfusion treatments were two-to-four times more expensive than conservative treatment. A cost-effectiveness study of the IS treatment option is necessary.
DOI: 10.6084/m9.figshare.8987693
title: Simplified expressions for dynamic behavior of cylindrical shells uncoupled and coupled with liquids

description: Abstract The dynamic behavior of cylindrical shells is essential in many practical applications. These include in-vacuum and coupled vibrations of structures with contained fluids. Closed-form solutions are extremely complex since they involve many terms and algebraic operations that require numerical solvers. In this work, a simplified closed-form solution for the free vibration analysis of an empty or filled with an inviscid and incompressible fluid cylindrical tank is presented. The proposed analytical method is developed for a simply supported cylindrical shell, based on an energy formulation obtained with variational calculus, and provides explicit expressions for natural frequencies, which can be easily programmed in a spreadsheet. The fluid is represented by an acoustic cavity, modeled by the wave equation, and the fluid-structure interaction is reduced to an added mass of fluid in the uncoupled shell equations of motion. A finite element model was built using ANSYS software to validate the proposed procedure. The natural frequencies and mode shapes were studied, and the results obtained are consistent with analytical, numerical and experimental results.
DOI: 10.6084/m9.figshare.8987696.v1
title: Mitigation of drought stress effects on soybean gas exchanges induced by Azospirillum brasilense and plant regulators

description: ABSTRACT Drought stress is a limitation for the agricultural production, having as a primary effect the reduction of plant gas exchanges, and the continuity of its incidence results in a lower yield. This study aimed to evaluate the photosynthetic responses and the soybean yield, concerning the seed inoculation and foliar spray with Azospirillum brasilense and plant regulator containing auxin, gibberellin and cytokinin. A randomized complete block design was used under greenhouse conditions, with five treatments: four under drought stress (control, seed inoculation and foliar spray with A. brasilense and plant regulator) and one irrigated treatment. The soil gravimetric moisture, relative water content, CO2 net assimilation rate, apparent quantum efficiency, light compensation point and grain yield were evaluated. The water deficiency reduced the relative water content by 76.96 % and the soybean gas exchanges by 860.43 %, in the drought stress control. However, when using A. brasilense or plant regulator, the reduction of these values was mitigated, with maximum reductions of 52.40 % in the relative water content and 361.99 % in the gas exchanges. Thus, the mitigation of these effects was directly correlated with the grains yielded by plants, where the use of foliar spray with A. brasilense or plant regulator presented averages 19 % higher than the drought stress control. The applications of foliar spray with A. brasilense and plant regulator mitigate the effects of drought stress on the soybean photosynthesis and culminate in lower yield losses.
DOI: 10.6084/m9.figshare.8987699.v1
title: GIVE ME “AGÔ” TO TALK ABOUT TRADITIONAL AFRICAN MATRIX KNOWLEDGE IN CHEMISTRY TEACHING

description: This paper presents the results of a participant research. We represent the science class-room as conditioned by the heterogeneity of the identities constituting it from positions that are defined and legitimized by our social structure. We present a pedagogical intervention (PI) entitled “Traditional knowledge of African-matrix peoples and communities”. The PI was audio and video recorded and analyzed using Discourse Analysis. Our results show that the religiosity of Brazilian African-matrix is nowadays a resignification of the cults of various ethnic groups in the African continent, in this sense, the plants and leaves were incorporated to people’s everyday life. Plants perform a sacral role of symbolic value and a functional role through its chemical components. We understand scientific knowledge is not traditional knowledge, but it relates to it. Our results show how it is possible to bring these topics to the Chemistry class-room. To establish a dialogue among these various forms of interacting with the world is necessary to break up with the epistemicide reaching our classrooms.
DOI: 10.6084/m9.figshare.8987687
title: PVC MEMBRANES PREPARED VIA NON-SOLVENT INDUCED PHASE SEPARATION PROCESS

description: ABSTRACT Polyvinylchloride (PVC) based membranes are prepared via a phase inversion method using N,N-dimethylacetamide (DMAc) as solvent and water as precipitation bath. Polyvinylpyrrolidone (PVP) and lithium nitrate (LiNO3) are used as additives. Experimental cloud point data and solution viscosity measurements are evaluated. Precipitation rates, transport properties and membrane morphology are quantified. Membranes with different morphologies and transport properties are prepared by changing the additive and its concentration, changing the PVC concentration and by varying the exposure time to the environment before immersion. An augment in PVC concentration increases solution viscosity, reduces precipitation rate and water permeability (Jw), but it does not affect the instantaneous precipitation mechanism. PVC solutions with additives present higher viscosity values, slower light transmittance decay and membranes with higher Jw (highest: ~1,350 L.h-1.m-2.bar-1). LiNO3 in the polymeric solution results in delayed demixing. A combination of high PVP concentration and environment exposure time changes the membrane morphology, suggesting spinodal demixing.
DOI: 10.6084/m9.figshare.8987693.v1
title: Simplified expressions for dynamic behavior of cylindrical shells uncoupled and coupled with liquids

description: Abstract The dynamic behavior of cylindrical shells is essential in many practical applications. These include in-vacuum and coupled vibrations of structures with contained fluids. Closed-form solutions are extremely complex since they involve many terms and algebraic operations that require numerical solvers. In this work, a simplified closed-form solution for the free vibration analysis of an empty or filled with an inviscid and incompressible fluid cylindrical tank is presented. The proposed analytical method is developed for a simply supported cylindrical shell, based on an energy formulation obtained with variational calculus, and provides explicit expressions for natural frequencies, which can be easily programmed in a spreadsheet. The fluid is represented by an acoustic cavity, modeled by the wave equation, and the fluid-structure interaction is reduced to an added mass of fluid in the uncoupled shell equations of motion. A finite element model was built using ANSYS software to validate the proposed procedure. The natural frequencies and mode shapes were studied, and the results obtained are consistent with analytical, numerical and experimental results.
DOI: 10.6084/m9.figshare.8987681
title: GENERATION AND PERFORMANCE ANALYSIS OF GPS AND GLONASS VIRTUAL DATA FOR POSITIONING UNDER DIFFERENT IONOSPHERIC CONDITIONS

description: Abstract Several approaches concerning the use in positioning of GNSS (Global Navigation Satellite Systems) can be considered: systems, applied methods and errors that can affect the signals. Following the GLONASS (GLObal NAvigation Satellite System) constellation reestablishment (2011), there was renewed interest in its use with GPS (Global Positioning System). Different possibilities are available concerning applied methods, such as the virtual reference station (VRS) concept (it is possible to obtain data for a virtual station that does not physically exist, using data from a network). One of the main sources of error related to the GNSS signal, is the ionosphere. Many studies have been developed aiming to evaluate GPS positioning quality and influences that can affect it, but there are still several investigation possibilities concerning GLONASS. In this context, this research is intended to assess the GPS/GLONASS virtual data positioning performance considering regions and periods with different ionospheric behavior. A high correlation between the results from virtual and real data (Pearson’s correlation coefficients around 0.8) was noticed. GPS/GLONASS data performance presented better mean squared error results compared to GPS alone (average 3D improvement was 45 cm - 49%). In addition, it was possible to verify ionosphere influence in the positioning error, taking into account station region and period of the year.
DOI: 10.6084/m9.figshare.8987678
title: Slabs strengthened for punching shear with post-installed steel and CFRP connectors

description: Abstract Structural accidents due to punching shear failures have been reported in flat slab buildings. Design recommendations presented by codes can lead to entirely different punching shear resistance estimates for similar situations. Furthermore, design codes do not present guidelines for the design of punching shear strengthening of existing slabs. This paper uses a database with 118 experimental results to discuss the performance of theoretical estimates of punching shear resistance using ACI 318, Eurocode 2 and ABNT NBR 6118 in the case of slabs without shear reinforcement. Another database with results of 62 tests on slabs strengthened with post-installed steel and CFRP dowels is used to evaluate the performance of these strengthening techniques and to propose adaptations in codes to allow their use in punching shear strengthening situations of existing slab-column connections.
DOI: 10.6084/m9.figshare.8987687.v1
title: PVC MEMBRANES PREPARED VIA NON-SOLVENT INDUCED PHASE SEPARATION PROCESS

description: ABSTRACT Polyvinylchloride (PVC) based membranes are prepared via a phase inversion method using N,N-dimethylacetamide (DMAc) as solvent and water as precipitation bath. Polyvinylpyrrolidone (PVP) and lithium nitrate (LiNO3) are used as additives. Experimental cloud point data and solution viscosity measurements are evaluated. Precipitation rates, transport properties and membrane morphology are quantified. Membranes with different morphologies and transport properties are prepared by changing the additive and its concentration, changing the PVC concentration and by varying the exposure time to the environment before immersion. An augment in PVC concentration increases solution viscosity, reduces precipitation rate and water permeability (Jw), but it does not affect the instantaneous precipitation mechanism. PVC solutions with additives present higher viscosity values, slower light transmittance decay and membranes with higher Jw (highest: ~1,350 L.h-1.m-2.bar-1). LiNO3 in the polymeric solution results in delayed demixing. A combination of high PVP concentration and environment exposure time changes the membrane morphology, suggesting spinodal demixing.
DOI: 10.6084/m9.figshare.8987672
title: Investment of Firms in Brazil: Do Financial Restrictions, Unexpected Monetary Shocks and BNDES Play Important Roles?

description: Abstract Our objective in this paper is to estimate the dynamics of firm investment in Brazil. For this purpose, we built an original database with confidential and public data containing balance sheet and financial information of 4,876 public and private firms from 1995 to 2010. We then classify these firms as financially restricted or not. Our results show that the effects of unexpected monetary shocks and financial restrictions over investment are economic and statistically significant in Brazil. Unexpected monetary contractions and financial restrictions decrease investment, while unexpected monetary expansions increase investment. We also find strong empirical evidence that financing from BNDES, Brazil’s development bank, affects positively the dynamics of investment and that this effect is economic and statistically significant. Our results are robust to several model specifications and econometric techniques.