cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9927620.v1
title: Follow-up of Toxoplasmosis during Pregnancy: Ten-Year Experience in a University Hospital in Southern Brazil

description: Abstract Objective To describe a population of pregnant women diagnosed with toxoplasmosis and their respective newborns, describing the hospital protocol for treatment and follow-up. Methods Retrospective cohort of pregnant women with acute toxoplasmosis infection and risk of transplacental transmission who were sent to the Fetal Medicine Group of Hospital de Clínicas de Porto Alegre (HCPA) between - January 1, 2006 and December 31, 2016. All patients with confirmed disease were included. The diagnostic protocol and treatment were applied; a polymerase chain reaction (PCR) analysis of the amniotic fluid was used to diagnose toxoplasmosis and determine the treatment. The newborns were followed up at the pediatric outpatient clinic specializing in congenital infection. The patients who were not followed up or were not born in the HCPA were excluded. Results A total of 65 patients were confirmed to have gestational toxoplasmosis; 40 performed amniocentesis, and 6 (15%) were identified as having positive PCR in the amniotic fluid. In five of those cases, this result associated with the gestational age defined the triple therapy during pregnancy, and in one case, it defined the monotherapy (advanced gestational age). A total of 4 of these newborns were treated from birth with triple therapy for 10months, 1 was not treated (due to maternal refusal), and 1 progressed to death within the first 54 hours of life due to complications of congenital toxoplasmosis. Of the 34 remaining cases with a negative PCR, 33 were treated with monotherapy and 1 was treated with triple therapy (ultrasound findings); of these children, 9 (26.5%) presented negative immunoglobulin G (IgG), 24 (70.6%) presented positive IgG (but none presented positive immunoglobulin M [IgM]), and 1 (2,9%) presented alterations compatible with congenital disease and started treatment with the triple therapy soon after birth. Out of the total sample of 60 patients, among the 25 who did not perform amniotic fluid PCR, 5 were treated with triple therapy (ultrasound findings/prior treatment) and 20 patients were submitted to monotherapy; only two newborns underwent treatment for congenital toxoplasmosis. Among the 65 cases of gestational toxoplasmosis, 6 (9,2%) children had a diagnosis of congenital toxoplasmosis, and 2 patients with triple therapy felt severe adverse effects of the medications. Conclusions The present study suggests that research on PCR screening of the amniotic fluid may be useful to identify patients with a higher potential for fetal complications, who may benefit from the poly-antimicrobial treatment. Patients with negative PCR results must continue to prevent fetal infection with monotherapy, without risk of fetal or maternal impairment.
DOI: 10.6084/m9.figshare.9927623.v1
title: Is Moderate Intensity Exercise during Pregnancy Safe for the Fetus? An Open Clinical Trial

description: Abstract Objective To determine the effect of treadmill walking on maternal heart rate (MHR) and cardiotocographic parameters (basal fetal heart rate [FHR], active fetal movements [AFM], number of accelerations and decelerations, and short-term variation [STV] and long-term variation [LTV] of fetal heart rate) in pregnant women at 36 weeks. Methods A nonrandomized, open clinical trial involving 88 healthy pregnant women submitted to moderate intensity walking and computed cardiotocography in 3 20- minute periods (resting, treadmill walking, and postexercise recovery). Results The mean FHR decreased during walking (resting: 137 bpm; treadmill: 98 bpm; recovery: 140 bpm; p&lt;0.001), with bradycardia occurring in 56% of the fetuses in the first 10minutes of exercise, and in 47% after 20minutes. Bradycardia was not detected in the other phases. The mean STV and HV were 7.9, 17.0, and 8.0 milliseconds (p&lt;0.001) and 7.6, 10.8 and 7.6 bpm (p=0.002) in the resting, walking and recovery phases, respectively. Themean number of fetalmovements in 1 hour was 29.9, 22.2 and 45.5, respectively, in the 3 periods (p&lt;0.001). In overweight/obese women, the mean FHR was lower (p=0.02). Following the logistic regression analysis, two variables remained significantly associated with bradycardia: maternal fitness in the 28th week of pregnancy (protective effect) and maternal weight (increased risk). Conclusion In healthy fetuses, physical exercise proved to be safe, since, although FHR and AFM decreased during treadmill walking, an increase in SVT and LTV was observed.
DOI: 10.6084/m9.figshare.9927626.v1
title: Obtaining of Fe3O4@C Core-Shell Nanoparticles as an Adsorbent of Tetracycline in Aqueous Solutions

description: Tetracycline is used to treat various diseases in animals and humans, so its high use causes this substance to be frequently found in effluents and in potable water reservoirs, causing serious problems for human health and the environment. Many processes are applied and evaluated in an attempt to removal tetracycline found in environment, such as adsorption. The application of iron-carbon nanoparticles with core-shell structure (Fe3O4@C) as adsorbent, can be an alternative to removal of these contaminants. In the present study Fe3O4@C nanoparticles were synthesized and used to adsorb tetracycline in aqueous solutions. The core-shell characterization was performed using X-ray diffraction techniques, infrared spectroscopy, surface area, chemical analysis and morphology, and adsorption capacity through isotherms. The results indicated that Fe3O4@C nanoparticles presented good tetracycline removal capability, 73.3%, when applied an initial concentration of antibiotic of the 30 mg L-1 and 0.5 g of adsorbent.
DOI: 10.6084/m9.figshare.9927611
title: Magnetic Materials Enriched with Strontium: a Study of the use as Catalysts in the Transesterification Reaction of Babassu Oil

description: This work described a new magnetic material enriched with strontium as catalyst to produce babassu biodiesel. The use of magnetic materials has attracted attention due to easy and fast separation from reaction medium. Moreover, they are ecologically correct, due to they generate less discards to the environment. Techniques of analysis and characterization were carried out to check the synthesis of magnetite and strontium ferrite, besides to verify the presence of hydroxide and carbonate in the structure of the strontium oxide. The best catalytic activities presented conversions of 78.6% and 89.7% when using the catalysts SrO/Fe3O4 and SrO/SrFe2O4, respectively. Density studies of the alkali active sites were performed to elucidate the best activity for the catalyst composed with SrFe2O4.
DOI: 10.6084/m9.figshare.9927608
title: Mass Variation Rate, in Acidic Environment, of Polyhydroxybutyrate and Chitosan matrices with Potential Application as Controlled Drug Delivery System

description: Polymers such as the biocompatible polyhydroxybutyrate (PHB) and the polysaccharide chitosan (Chi), a pH-sensitive polymer, have been studied for drug delivery applications and scaffolds production. In this work, matrices of PHB and Chi were produced by compression molding (SPHB-Chi) and loaded with a broad-spectrum biocide chlorhexidine (CHX) (SPHB-Chi-CHX). The matrices were analyzed by scanning electron microscope (SEM). The SPHB-Chi capacity to absorb and deliver CHX was evaluated by UV-Vis. The antibacterial activity of the samples against S. aureus, P. aeruginosa and E. coli (most common pathogens that cause infection in several body sites) was evaluated using the disk-agar diffusion method. The CHX release results were fitted by the Power Law model. The results suggested that the morphology and the CHX delivery profile were directly related to the Chi amount in the samples and also showed that the SPHB-Chi-CHX is able to inhibit the microorganism proliferation, constituting it as a potential candidate for oral applications.
DOI: 10.6084/m9.figshare.9927611.v1
title: Magnetic Materials Enriched with Strontium: a Study of the use as Catalysts in the Transesterification Reaction of Babassu Oil

description: This work described a new magnetic material enriched with strontium as catalyst to produce babassu biodiesel. The use of magnetic materials has attracted attention due to easy and fast separation from reaction medium. Moreover, they are ecologically correct, due to they generate less discards to the environment. Techniques of analysis and characterization were carried out to check the synthesis of magnetite and strontium ferrite, besides to verify the presence of hydroxide and carbonate in the structure of the strontium oxide. The best catalytic activities presented conversions of 78.6% and 89.7% when using the catalysts SrO/Fe3O4 and SrO/SrFe2O4, respectively. Density studies of the alkali active sites were performed to elucidate the best activity for the catalyst composed with SrFe2O4.
DOI: 10.6084/m9.figshare.9927614
title: Fabrication of Fish Gelatin Microfibrous Mats by Solution Blow Spinning

description: In this work microfiber mats of Nile tilapia (Oreochromis niloticus) gelatin were successfully fabricated by using Solution Blow Spinning technique. The concentration and viscosity of fish gelatin solution, in acid acetic/water (80% v/v), were correleted to the morphology and diameter of the gelatin microfibers. It was found that increased solution viscosity leads to increase of fibers diameters from approximately 280 nm at viscosity ~ 0.085 Pa.s. to approximately 1195 nm at viscosity ~ 1.877 Pa.s. The TG thermograms showed similar thermal profiles for all fibrous mat gelatins with thermal stability at temperatures below 180°C. The DSC curve showed two endothermic peaks being the second one, in the range of 100-130°C, strongly influenced by the microfiber diameters. It shifts to higher temperature increasing the microfiber diameter. This behavior was associated to the diffusion of water in the microfibers. Combined DSC/TG results showed a significant influence of the microfiber diameter on the water absorption and desorption process.
DOI: 10.6084/m9.figshare.9927605
title: Kinetic Analysis of Lead Removal by Natural Hydroxyapatite from Aqueous Solution in High Concentration

description: The aim of this work was to study of the kinetic of Pb(II) sorption, in high lead concentration aqueous solution, by the natural hydroxyapatite (HA) and to verify whether there is a different behavior between natural and synthetic HA under different lead concentrations. Batch experiments were carried out using solutions with high lead concentration, with the objective to evaluate the effect of contact time, HA dosage and initial metal concentration on lead removal. Kinetic data were analyzed by pseudo-first and pseudo-second order models. The sorption data was then correlated with the Langmuir and Freundlich isotherm models. The PZC obtained was slightly different than those reported by other authors, who evaluated the process under low concentrations and synthetic HA as adsorbent. It was possible to identify the optimum relation between Pb(II) concentrations and mass of HA for efficiency of approximately 100% at optimum contact time. Although the results show a certain instability during the removal of lead when the concentration is much higher, the process can be considered effective. Liquid samples were analyzed by atomic absorption spectroscopy and solid samples were by X-ray diffraction and Fourier transform infrared spectroscopy.
DOI: 10.6084/m9.figshare.9927614.v1
title: Fabrication of Fish Gelatin Microfibrous Mats by Solution Blow Spinning

description: In this work microfiber mats of Nile tilapia (Oreochromis niloticus) gelatin were successfully fabricated by using Solution Blow Spinning technique. The concentration and viscosity of fish gelatin solution, in acid acetic/water (80% v/v), were correleted to the morphology and diameter of the gelatin microfibers. It was found that increased solution viscosity leads to increase of fibers diameters from approximately 280 nm at viscosity ~ 0.085 Pa.s. to approximately 1195 nm at viscosity ~ 1.877 Pa.s. The TG thermograms showed similar thermal profiles for all fibrous mat gelatins with thermal stability at temperatures below 180°C. The DSC curve showed two endothermic peaks being the second one, in the range of 100-130°C, strongly influenced by the microfiber diameters. It shifts to higher temperature increasing the microfiber diameter. This behavior was associated to the diffusion of water in the microfibers. Combined DSC/TG results showed a significant influence of the microfiber diameter on the water absorption and desorption process.
DOI: 10.6084/m9.figshare.9927632.v2
title: Ground Star Observation Data

description: This data is the gray scale, number and apparent magnitude data of stars observed by KAI-4021 on the ground.
DOI: 10.6084/m9.figshare.9927602
title: Acute Coronary Syndrome patients’ return to work

description: Abstract Introduction: cardiovascular diseases represent a major morbidity and mortality impact on the Brazilian society. Objective: to verify the Acute Coronary Syndrome (ACS) patients’ time to return to work; and to identify and correlate sociodemographic, clinical, psychosocial, and occupational variables that may influence that time and their work performance. Methods: cross-sectional correlational study conducted in 2015-2016 with 65 ACS patients who returned to work. The instruments used were: Sociodemographic Questionnaire; Work Performance Evaluation Questionnaire; Veterans Specific Activity Questionnaire; MacNew Heart Disease Health-related Quality of Life; Hospital Anxiety and Depression Scale; and Impact of Valvular Disease in Everyday Life. Mann-Whitney test, Dunn’s posttest, and Spearman’s correlation coefficient were applied. Results: participants took 7.3 months on average to return to work; the ones who performed manual labor took longer to do so. Professional performance was found to be strongly correlated with quality of life and, inversely, with anxiety and depression. Conclusion: data indicate the need to develop strategies to promote ACS patients’ return to work.
DOI: 10.6084/m9.figshare.9927605.v1
title: Kinetic Analysis of Lead Removal by Natural Hydroxyapatite from Aqueous Solution in High Concentration

description: The aim of this work was to study of the kinetic of Pb(II) sorption, in high lead concentration aqueous solution, by the natural hydroxyapatite (HA) and to verify whether there is a different behavior between natural and synthetic HA under different lead concentrations. Batch experiments were carried out using solutions with high lead concentration, with the objective to evaluate the effect of contact time, HA dosage and initial metal concentration on lead removal. Kinetic data were analyzed by pseudo-first and pseudo-second order models. The sorption data was then correlated with the Langmuir and Freundlich isotherm models. The PZC obtained was slightly different than those reported by other authors, who evaluated the process under low concentrations and synthetic HA as adsorbent. It was possible to identify the optimum relation between Pb(II) concentrations and mass of HA for efficiency of approximately 100% at optimum contact time. Although the results show a certain instability during the removal of lead when the concentration is much higher, the process can be considered effective. Liquid samples were analyzed by atomic absorption spectroscopy and solid samples were by X-ray diffraction and Fourier transform infrared spectroscopy.
DOI: 10.6084/m9.figshare.9927608.v1
title: Mass Variation Rate, in Acidic Environment, of Polyhydroxybutyrate and Chitosan matrices with Potential Application as Controlled Drug Delivery System

description: Polymers such as the biocompatible polyhydroxybutyrate (PHB) and the polysaccharide chitosan (Chi), a pH-sensitive polymer, have been studied for drug delivery applications and scaffolds production. In this work, matrices of PHB and Chi were produced by compression molding (SPHB-Chi) and loaded with a broad-spectrum biocide chlorhexidine (CHX) (SPHB-Chi-CHX). The matrices were analyzed by scanning electron microscope (SEM). The SPHB-Chi capacity to absorb and deliver CHX was evaluated by UV-Vis. The antibacterial activity of the samples against S. aureus, P. aeruginosa and E. coli (most common pathogens that cause infection in several body sites) was evaluated using the disk-agar diffusion method. The CHX release results were fitted by the Power Law model. The results suggested that the morphology and the CHX delivery profile were directly related to the Chi amount in the samples and also showed that the SPHB-Chi-CHX is able to inhibit the microorganism proliferation, constituting it as a potential candidate for oral applications.
DOI: 10.6084/m9.figshare.9927602.v1
title: Acute Coronary Syndrome patients’ return to work

description: Abstract Introduction: cardiovascular diseases represent a major morbidity and mortality impact on the Brazilian society. Objective: to verify the Acute Coronary Syndrome (ACS) patients’ time to return to work; and to identify and correlate sociodemographic, clinical, psychosocial, and occupational variables that may influence that time and their work performance. Methods: cross-sectional correlational study conducted in 2015-2016 with 65 ACS patients who returned to work. The instruments used were: Sociodemographic Questionnaire; Work Performance Evaluation Questionnaire; Veterans Specific Activity Questionnaire; MacNew Heart Disease Health-related Quality of Life; Hospital Anxiety and Depression Scale; and Impact of Valvular Disease in Everyday Life. Mann-Whitney test, Dunn’s posttest, and Spearman’s correlation coefficient were applied. Results: participants took 7.3 months on average to return to work; the ones who performed manual labor took longer to do so. Professional performance was found to be strongly correlated with quality of life and, inversely, with anxiety and depression. Conclusion: data indicate the need to develop strategies to promote ACS patients’ return to work.
DOI: 10.6084/m9.figshare.9927590
title: LANGUAGE POLICY IN OCEANIA: IN THE FRONTIERS OF COLONIZATION AND GLOBALIZATION

description: ABSTRACT: In this article, we present an overview of the language policies adopted in the Oceanian countries and territories after analysis of legislation, plans and government programs. Representing 22.9% of all languages in the world — the vast majority spoken by few people and endangered —, this continent suffered an intense linguistic colonization marked by the instrumentalisation of indigenous languages by missionaries and by the subsequent imposition of European languages as the only ones allowed during European and American imperialism. Such a scenario has broadened the complex linguistic situation in Oceania and has imposed on the countries of the region many challenges about languages to adopt after their independences, in view of the many local problems, which caused the Oceanian peoples to seek diverse political solutions and to become frontier peoples — frontiers of languages, frontiers of meanings, frontiers of memories, frontiers between colonizer languages, indigenous languages and immigrant languages.
DOI: 10.6084/m9.figshare.9927596
title: The Pigna paper mill and the exercise books of the «new ITALY» (1870- 1960)

description: ABSTRACT For the very first time this in-depth paper studies the archives of the historic Paolo Pigna Paper Mill of Alzano Lombardo (Bergamo, Italy), which played a leading role in Italian history and culture: so much so that it ended up with fusing its own image to the very market where it operated, that is, the Italian schools. After being taken over by Paolo Pigna in 1867, the great paper mill immediately became known not only for its high-quality production but also for keeping abreast of technology and emerging in a sector of the economy, which in the mid-1800s was fragmented into a multitude of small and poorly mechanized artisan workshops. The Author retraces one hundred years of the history of the company and its production for schools: in particular its production of exercise books - a simple but effective and all-pervading medium of iconic-verbal messages (moral, educational, propagandistic, religious, etc.).
DOI: 10.6084/m9.figshare.9927587
title: Scientific Literacy and knowledge contextualization: a study of traffic applied Physics

description: Abstract We present the results of a study with High School graduates that sought to investigate the scientific literacy level and the ability to interpret traffic situations in the light of Physics. From this measurement, we performed statistical tests in order to infer if these indexes had a connection with previous Physics classes experienced by the participants and also with the degree of information about scientific topics that they believed to hold. As results, it was possible to show statistically significant connections between the majority of the analyzed constructs, highlighting the correlation between the scientific literacy level of those who attended Physics classes with characteristics that could enhance Significant Learning. As a contribution, we defend the inclusion of a fourth axis, Scientific Proficiency, in the way of measuring the level of scientific literacy, postulated by Joh Miller, in which it is considered scientifically literate those who submit minimum domain: 1) of the contents of science; 2) of nature of science; and 3) of the impact of science and technology on society and the environment.
DOI: 10.6084/m9.figshare.9927590.v1
title: LANGUAGE POLICY IN OCEANIA: IN THE FRONTIERS OF COLONIZATION AND GLOBALIZATION

description: ABSTRACT: In this article, we present an overview of the language policies adopted in the Oceanian countries and territories after analysis of legislation, plans and government programs. Representing 22.9% of all languages in the world — the vast majority spoken by few people and endangered —, this continent suffered an intense linguistic colonization marked by the instrumentalisation of indigenous languages by missionaries and by the subsequent imposition of European languages as the only ones allowed during European and American imperialism. Such a scenario has broadened the complex linguistic situation in Oceania and has imposed on the countries of the region many challenges about languages to adopt after their independences, in view of the many local problems, which caused the Oceanian peoples to seek diverse political solutions and to become frontier peoples — frontiers of languages, frontiers of meanings, frontiers of memories, frontiers between colonizer languages, indigenous languages and immigrant languages.
DOI: 10.6084/m9.figshare.9927596.v1
title: The Pigna paper mill and the exercise books of the «new ITALY» (1870- 1960)

description: ABSTRACT For the very first time this in-depth paper studies the archives of the historic Paolo Pigna Paper Mill of Alzano Lombardo (Bergamo, Italy), which played a leading role in Italian history and culture: so much so that it ended up with fusing its own image to the very market where it operated, that is, the Italian schools. After being taken over by Paolo Pigna in 1867, the great paper mill immediately became known not only for its high-quality production but also for keeping abreast of technology and emerging in a sector of the economy, which in the mid-1800s was fragmented into a multitude of small and poorly mechanized artisan workshops. The Author retraces one hundred years of the history of the company and its production for schools: in particular its production of exercise books - a simple but effective and all-pervading medium of iconic-verbal messages (moral, educational, propagandistic, religious, etc.).