cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11314418
title: Serological and molecular investigation of Leishmania spp. infection in cats from an area endemic for canine and human leishmaniasis in Northeast Brazil

description: Abstract The aim of this study was to investigate the occurrence of Leishmania spp. antibodies, and its association with feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV), in domestic cats from an area endemic for canine and human leishmaniasis in Rio Grande do Norte State, Brazil. Ninety-one cats were subjected to a complete clinical exam, and blood samples were collected. An epidemiological questionnaire was used to investigate the risk factors. IgG anti-Leishmania spp. antibodies were detected by immunofluorescence antibody test (IFAT), with a cut-off value of 1:40. Polymerase chain reaction (PCR) was performed to detect genetic material of Leishmania spp. in the blood samples. The presence of antibodies against FIV and antigens of FeLV was evaluated using an immunochromatographic test. Seropositivity for Leishmania spp., FIV, and FeLV was observed in 14/91 (15.38%), 26/91 (28.57%), and 3/91 (3.29%) cats, respectively. All samples gave negative results on PCR analysis. Based on these data, no significant statistical association was observed between seropositivity for Leishmania spp., and sex, age, presence of clinical signs, evaluated risk factors, and positivity for retroviruses. These findings demonstrated for the first time that cats from Mossoró, Rio Grande do Norte, are being exposed to this zoonosis and might be part of the epidemiological chain of transmission of visceral leishmaniasis.
DOI: 10.6084/m9.figshare.11314424.v1
title: Profitability of maize and beans submitted to different irrigation depths in Mato Grosso

description: Abstract Quantifying water consumption for irrigation is essential to optimize water use and contribute to the achievement of economic efficiency, and can be articulated with planning and management strategies. The objective of this research is to quantify the variable cost of irrigation management and the yield of maize and beans along with the economy of water resource in Mato Grosso State, Brazil. Data were collected from the irrigation slides for maize and beans, from production costs and revenues from sales through Imea and Conab data referring to the 2015/2016 crop. Data were submitted to the Benefit / Cost Ratio (B / C) for profitability analysis purposes, and an analysis of efficiency water use. The 190 mm blade for maize irrigation and the 522.17 mm blade for bean irrigation are the best slides to be applied by the producer, aiming economic and environmental balance, since they presented greater efficiency in the water use together with the higher rate of profitability compared to other slides.
DOI: 10.6084/m9.figshare.11314430.v1
title: Anthelmintic activity of Eucalyptus citriodora essential oil and its major component, citronellal, on sheep gastrointestinal nematodes

description: Abstract This study aimed to evaluate the anthelmintic activity of Eucalyptus citriodora essential oil and citronellal on sheep gastrointestinal nematodes. Essential oil composition was determined by gas chromatography mass spectrometry. The substances were evaluated in vitro using adult worm motility test (AWMT) and transmission electron microscopy (TEM). The acute toxicity test in mice and the fecal egg count reduction test (FECRT) in sheep were performed. Citronellal was confirmed as the essential oil major constituent (63.9%). According to the AWMT, 2 mg/mL of essential oil and citronellal completely inhibited Haemonchus contortus motility at 6 h post exposure. H. contortus exposed to essential oil and citronellal exhibited internal ultrastructural modifications. The lethal dose 50 values in mice were 5,000 and 2,609 mg/kg for essential oil and citronellal, respectively. E. citriodora essential oil reduced sheep epg at 14 days post treatment by 69.5% (P&lt;0.05). No significant differences were observed in epg between the citronellal and negative control groups (P&gt;0.05). The interaction between citronellal and other constituents in the essential oil may be relevant for its in vivo anthelmintic activity. Thus, E. citriodora essential oil and citronellal pharmacokinetic studies may help elucidate the anthelmintic activity of these compounds.
DOI: 10.6084/m9.figshare.11314412
title: The “homeopathic specific:” commercial legitimization of homeopathy in Barcelona (1902-1910)

description: Abstract The change in position of homeopathic remedies in the health market produced by the emerging pharmacological paradigm was key to the popularization of homeopathy in Spain. The introduction of specifics and their marketing strategies led to a rise in popular legitimization of homeopathy, and the battles between different professionals created fertile ground for explaining and promoting this doctrine. This article analyzes a contextualized case in Barcelona in the early twentieth century, and explores from different perspectives the new role of pharmacists and medications in spreading homeopathy, centering on strategies for popularizing homeopathic remedies in Spain.
DOI: 10.6084/m9.figshare.11314418.v1
title: Serological and molecular investigation of Leishmania spp. infection in cats from an area endemic for canine and human leishmaniasis in Northeast Brazil

description: Abstract The aim of this study was to investigate the occurrence of Leishmania spp. antibodies, and its association with feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV), in domestic cats from an area endemic for canine and human leishmaniasis in Rio Grande do Norte State, Brazil. Ninety-one cats were subjected to a complete clinical exam, and blood samples were collected. An epidemiological questionnaire was used to investigate the risk factors. IgG anti-Leishmania spp. antibodies were detected by immunofluorescence antibody test (IFAT), with a cut-off value of 1:40. Polymerase chain reaction (PCR) was performed to detect genetic material of Leishmania spp. in the blood samples. The presence of antibodies against FIV and antigens of FeLV was evaluated using an immunochromatographic test. Seropositivity for Leishmania spp., FIV, and FeLV was observed in 14/91 (15.38%), 26/91 (28.57%), and 3/91 (3.29%) cats, respectively. All samples gave negative results on PCR analysis. Based on these data, no significant statistical association was observed between seropositivity for Leishmania spp., and sex, age, presence of clinical signs, evaluated risk factors, and positivity for retroviruses. These findings demonstrated for the first time that cats from Mossoró, Rio Grande do Norte, are being exposed to this zoonosis and might be part of the epidemiological chain of transmission of visceral leishmaniasis.
DOI: 10.6084/m9.figshare.11314403
title: Effect of passive ultrasonic activation on microorganisms in primary root canal infection: a randomized clinical trial

description: Abstract Objective: This clinical study sought to evaluate the effectiveness of passive ultrasonic activation (PUA) in eliminating microorganisms in primary endodontic infection (PEI) after instrumentation of root canals using microbiological culture and checkerboard DNA-DNA hybridization. Methodology: Twenty root canals with PEI and apical periodontitis were selected. The root canals were instrumented and then randomly divided into 2 groups, according to the irrigation method: PUA and conventional needle irrigation (CNI). Microbiological samples were collected before instrumentation (S1), after instrumentation (S2) and after irrigation with 17% EDTA (S3). The samples were subjected to anaerobic culture technique and checkerboard DNA-DNA hybridization analysis. Results: A statistically significant difference was found between CNI (23.56%) and PUA (98.37%) regarding the median percentage values for culturable bacteria reduction (p&lt;0.05). In the initial samples, the most frequently detected species was S. constellatus (50%), and after root canal treatment was E. faecalis (50%). Conclusion: Both treatments significantly decreased the number of bacterial species compared with the initial sample. However, no statistical difference in the total microbial load between PUA and CNI groups was detected. The number of cultivable anaerobic bacteria reduced significantly using PUA, and the bacterial composition and number of bacterial species after using either CNI or PUA was similar.
DOI: 10.6084/m9.figshare.11314409
title: Antimicrobial Activity and Physicochemical Properties of Antibiotic Pastes Used In Regenerative Endodontics

description: Abstract: The purpose of this study was to evaluate the pH, solubility and antimicrobial action of Calcium Hydroxide Paste (CH), Double Antibiotic Paste (metronidazole+ciprofloxacin-DAP), calcium hydroxide added to DAP (CH/DAP) and Triple Antibiotic Paste (metronidazole + ciprofloxacin+minocycline-TAP). pH (n=10) were measured by pHmeter. Root canals of acrylic teeth (n=10) were filled with the above-mentioned intracanal-dressings, immersed in ultrapure water, and solubility was measured by the difference between the initial and final volume (7,15 and 30 days) by using micro-computed tomography. Enterococcus faecalis biofilm was induced on bovine dentin disc surfaces (n=20), and treated with the pastes for 7 days. Percentage bacterial viability was verified by confocal microscope, with LIVE/DEAD dye. CH and CH/DAP presented the highest pH values. Regarding solubility, after 7 days, antibiotic groups presented significant volume loss. CH and CH/DAP showed no statistical difference compared with the Control in antimicrobial action against E. faecalis biofilm. However, TAP and DAP presented a significant percentage reduction in bacterial population. Due to high solubility of the pastes, renewing antibiotic dressings every 7 days, or using the medications for this period in regeneration protocols is recommended. DAP is indicated for killing E. faecalis in biofilm because it has antimicrobial action similar to TAP. Adding Calcium Hydroxide to DAP significantly decreased its antimicrobial action. In spite of its the low solubility and high pH values, the CH paste showed a low level of antimicrobial action against E. faecalis in biofilm.
DOI: 10.6084/m9.figshare.11314412.v1
title: The “homeopathic specific:” commercial legitimization of homeopathy in Barcelona (1902-1910)

description: Abstract The change in position of homeopathic remedies in the health market produced by the emerging pharmacological paradigm was key to the popularization of homeopathy in Spain. The introduction of specifics and their marketing strategies led to a rise in popular legitimization of homeopathy, and the battles between different professionals created fertile ground for explaining and promoting this doctrine. This article analyzes a contextualized case in Barcelona in the early twentieth century, and explores from different perspectives the new role of pharmacists and medications in spreading homeopathy, centering on strategies for popularizing homeopathic remedies in Spain.
DOI: 10.6084/m9.figshare.11314406
title: Mathematics Teaching in a Special Issue of The New Era Magazine, 1934

description: Abstract In 1934, the The New Era magazine, one of the official magazines of the New Education Fellowship (NEF), published a special issue on Mathematics teaching. The NEF was an international organization, founded in 1921 within the international movement of New Education, which aggregated members from different countries, including some renowned educators. The following article explores the themes about Mathematics Education addressed in the aforesaid issue, as well as the content of the discussions concerning theoretic-methodological approach, this way identifying recurring elements and eventual divergences. The analysis focus on the editorial aspects, the authors' networks, and the authority speech. Among the conclusions, it is possible to notice the concern in including authors internationally recognized and widely known approaches, such as the Decroly and Montessori methods. The different branches of Mathematics and school levels make evident that the editor wanted to provide an overview of Mathematics Education tendencies. The appeal to real experiences in Mathematics teaching, the prominence of the student, the connection between subject matter and mental age, and the central role of the psychology applied to education are among the recurring aspects. However, the way some of these aspects are interpreted points out the divergences. Finally, the article highlights the potentiality of exploring connections with Brazil, such as the case of Professor Alda Lodi.
DOI: 10.6084/m9.figshare.11314409.v1
title: Antimicrobial Activity and Physicochemical Properties of Antibiotic Pastes Used In Regenerative Endodontics

description: Abstract: The purpose of this study was to evaluate the pH, solubility and antimicrobial action of Calcium Hydroxide Paste (CH), Double Antibiotic Paste (metronidazole+ciprofloxacin-DAP), calcium hydroxide added to DAP (CH/DAP) and Triple Antibiotic Paste (metronidazole + ciprofloxacin+minocycline-TAP). pH (n=10) were measured by pHmeter. Root canals of acrylic teeth (n=10) were filled with the above-mentioned intracanal-dressings, immersed in ultrapure water, and solubility was measured by the difference between the initial and final volume (7,15 and 30 days) by using micro-computed tomography. Enterococcus faecalis biofilm was induced on bovine dentin disc surfaces (n=20), and treated with the pastes for 7 days. Percentage bacterial viability was verified by confocal microscope, with LIVE/DEAD dye. CH and CH/DAP presented the highest pH values. Regarding solubility, after 7 days, antibiotic groups presented significant volume loss. CH and CH/DAP showed no statistical difference compared with the Control in antimicrobial action against E. faecalis biofilm. However, TAP and DAP presented a significant percentage reduction in bacterial population. Due to high solubility of the pastes, renewing antibiotic dressings every 7 days, or using the medications for this period in regeneration protocols is recommended. DAP is indicated for killing E. faecalis in biofilm because it has antimicrobial action similar to TAP. Adding Calcium Hydroxide to DAP significantly decreased its antimicrobial action. In spite of its the low solubility and high pH values, the CH paste showed a low level of antimicrobial action against E. faecalis in biofilm.
DOI: 10.6084/m9.figshare.11314403.v1
title: Effect of passive ultrasonic activation on microorganisms in primary root canal infection: a randomized clinical trial

description: Abstract Objective: This clinical study sought to evaluate the effectiveness of passive ultrasonic activation (PUA) in eliminating microorganisms in primary endodontic infection (PEI) after instrumentation of root canals using microbiological culture and checkerboard DNA-DNA hybridization. Methodology: Twenty root canals with PEI and apical periodontitis were selected. The root canals were instrumented and then randomly divided into 2 groups, according to the irrigation method: PUA and conventional needle irrigation (CNI). Microbiological samples were collected before instrumentation (S1), after instrumentation (S2) and after irrigation with 17% EDTA (S3). The samples were subjected to anaerobic culture technique and checkerboard DNA-DNA hybridization analysis. Results: A statistically significant difference was found between CNI (23.56%) and PUA (98.37%) regarding the median percentage values for culturable bacteria reduction (p&lt;0.05). In the initial samples, the most frequently detected species was S. constellatus (50%), and after root canal treatment was E. faecalis (50%). Conclusion: Both treatments significantly decreased the number of bacterial species compared with the initial sample. However, no statistical difference in the total microbial load between PUA and CNI groups was detected. The number of cultivable anaerobic bacteria reduced significantly using PUA, and the bacterial composition and number of bacterial species after using either CNI or PUA was similar.
DOI: 10.6084/m9.figshare.11314406.v1
title: Mathematics Teaching in a Special Issue of The New Era Magazine, 1934

description: Abstract In 1934, the The New Era magazine, one of the official magazines of the New Education Fellowship (NEF), published a special issue on Mathematics teaching. The NEF was an international organization, founded in 1921 within the international movement of New Education, which aggregated members from different countries, including some renowned educators. The following article explores the themes about Mathematics Education addressed in the aforesaid issue, as well as the content of the discussions concerning theoretic-methodological approach, this way identifying recurring elements and eventual divergences. The analysis focus on the editorial aspects, the authors' networks, and the authority speech. Among the conclusions, it is possible to notice the concern in including authors internationally recognized and widely known approaches, such as the Decroly and Montessori methods. The different branches of Mathematics and school levels make evident that the editor wanted to provide an overview of Mathematics Education tendencies. The appeal to real experiences in Mathematics teaching, the prominence of the student, the connection between subject matter and mental age, and the central role of the psychology applied to education are among the recurring aspects. However, the way some of these aspects are interpreted points out the divergences. Finally, the article highlights the potentiality of exploring connections with Brazil, such as the case of Professor Alda Lodi.
DOI: 10.6084/m9.figshare.11314391
title: Corrosion Resistance of TiO2-ZrO2 Nanocomposite Thin Films Spin Coated on AISI 304 Stainless Steel in 3.5 wt. % NaCl Solution

description: Utilizing high chromium and nickel content in AISI 304 steel confers its good corrosion resistance. However, the high content of chromium and nickel increases the steel susceptibility to corrosion caused by the high concentration of chlorine. Consequently, the electrochemical and mechanical performance of the steel degrades. In this study, the effect of adding a layer containing a gelatin-dispersed mix of TiO2-ZrO2 nanoparticles on the corrosion rate and critical pitting potential of AISI 304 steel is studied. Two mix ratios of TiO2-ZrO2 nanoparticles to gelatin (0.5:0.5, 0.3:0.7) were used. Three different fractions of nanoparticles (1 wt. %, 2 wt. %, 3 wt. %) were used for each ratio. Potentiodynamic polarization examinations were used to measure the corrosion rate and the critical-pitting potential of the spin-coated AISI 304 steel in a simulated environment containing 3.5 wt. % NaCl. Scanning electron microscopy (SEM) and energy dispersive x-ray (EDX) were used to study the morphology of the coated surfaces and the elemental composition of the nanocomposite coatings. The results show that the hybrid TiO2-ZrO2 nanoparticles coatings significantly improved the uniform and localized corrosion of the AISI 304 steel. Moreover, the results confirm the formation of homogeneous, stable, and crack-free coatings.
DOI: 10.6084/m9.figshare.11314391.v1
title: Corrosion Resistance of TiO2-ZrO2 Nanocomposite Thin Films Spin Coated on AISI 304 Stainless Steel in 3.5 wt. % NaCl Solution

description: Utilizing high chromium and nickel content in AISI 304 steel confers its good corrosion resistance. However, the high content of chromium and nickel increases the steel susceptibility to corrosion caused by the high concentration of chlorine. Consequently, the electrochemical and mechanical performance of the steel degrades. In this study, the effect of adding a layer containing a gelatin-dispersed mix of TiO2-ZrO2 nanoparticles on the corrosion rate and critical pitting potential of AISI 304 steel is studied. Two mix ratios of TiO2-ZrO2 nanoparticles to gelatin (0.5:0.5, 0.3:0.7) were used. Three different fractions of nanoparticles (1 wt. %, 2 wt. %, 3 wt. %) were used for each ratio. Potentiodynamic polarization examinations were used to measure the corrosion rate and the critical-pitting potential of the spin-coated AISI 304 steel in a simulated environment containing 3.5 wt. % NaCl. Scanning electron microscopy (SEM) and energy dispersive x-ray (EDX) were used to study the morphology of the coated surfaces and the elemental composition of the nanocomposite coatings. The results show that the hybrid TiO2-ZrO2 nanoparticles coatings significantly improved the uniform and localized corrosion of the AISI 304 steel. Moreover, the results confirm the formation of homogeneous, stable, and crack-free coatings.
DOI: 10.6084/m9.figshare.11314379
title: Systematization of evaluation instruments for the two first years of life of typical or risk infants according to the ICF model

description: ABSTRACT The objective of this study was to identify low-cost instruments of evaluation of neuropsychomotor development (NPMD) of children aged zero to two years, that can be used in the context of daycare and/or clinical environment in early intervention programs, and to systematize these instruments as the biopsychosocial model of the International Classification of Functioning, Disability and Health (ICF). NPMD evaluation instruments with translation or adaptation for Brazil were selected. For this purpose, the ICF domains were chosen triangulating the ICF-CY’s own checklist, the early stimulation core set, and the latest version of the ICF for searching the evaluation instruments in literature. Two physical therapists and a third for discordant items performed the systematization of the selected categories of ICF. The scales that met the criteria were: Alberta Infant Motor Scale (AIMS), Denver II Screening Test, PedIatric Quality of Life Inventory (PedSQl ™), Affordance in the Home Environment for Motor Development-Infant Scale (AHEMD-IS) and Mother-child bond. Even with these scales, there was a need for a complementary anamnesis questionnaire for the infant’s caregiver, data from the Child Health Handbook and a socioeconomic questionnaire from the Brazilian Association of Research Companies for Brazil (ABEP). This systematization is available in the appendix and seeks to facilitate the broader view of the physical therapist or education professional with a biopsychosocial comprehension of the infants, in addition to allowing the early identification of risks and subsidizing actions of promotion and intervention in different contexts.
DOI: 10.6084/m9.figshare.11314376
title: The Activity Theory in Mathematics Interactive Digital Didatic Material

description: Abstract In this article, we discuss how the formal mathematical language, digital technologies, the internet, virtual learning environments, and the interaction between distance learning participants can influence and transform the production of knowledge in distance learning courses. We consider the research that gave rise to this article as a collective case study, since the data were produced during the development of Linear Algebra disciplines of four distance teacher education courses in Mathematics linked to the Open University of Brazil (UAB). We base our analyzes on the theory of activity and the epistemological view that surrounds the construct humans-with-media. Methodologically, we adopt the qualitative paradigm, having as sources of data production observation in virtual learning environments, interviews, political pedagogical projects and field notes. Data analysis was based on the grounded theory rooted in the activity theory itself. The results indicated that the difficulty in communicating and expressing the formal mathematical language in the virtual learning environment generated tensions and transformations that resulted in the production of interactive digital didactic material.