cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9276092.v1
title: The use of firewood for home consumption and the fabrication of hand-crafted ceramics in a semi-arid region of Northeast Brazil

description: ABSTRACT This study aimed to identify, analyze and compare different uses of firewood for home consumption and for handicraft work in rural communities in Altinho, Pernambuco, Brazil. Semi-structured and free-listing interviews were performed to catalog the plants that were better known by locals and that were mostly used as firewood for home consumption and handicraft work. Two in situ inventories were performed at the homes of the study location in order document the plants that were actually used. A total of 39 species of woody plants belonging to 16 botanical families were registered. The most widely-known species for both uses were also the species that were most used and preferably-used-as-wood by the population. The plants most preferably-used-as-wood by the participants, which were selected as samples, were also those that the participants identified as having superior quality. Thus, there is a small group of plants that is used for both activities, and thus more vulnerable to extractivism, and which ought to be conserved. Alternative management strategies are needed that secure the availability of these species in the future to meet the needs of the local population and to conserve biodiversity.
DOI: 10.6084/m9.figshare.9276086
title: Larvicidal and adulticidal effects and ultrastructural changes of larvae midgut epithelium of Musca domestica (Diptera: Muscidae) fed with Bacillus thuringiensis var. kyushuensis

description: Abstract INTRODUCTION: Musca domestica is resistant to many insecticides; hence, biological control is a suitable alternative. METHODS: We evaluated the lethality of strain Btk176 towards the larval and adult M. domestica and the histopathological effects in the larvae midgut. RESULTS: We observed 99% larval and 78.9% adult mortality within 48 hours of spore ingestion (dosage, 2.4×108 CFU/ml). The histopathological effects were consistent with cytotoxicity. PCR analysis showed the presence of the cry1Ba gene. Transmission electron microscopy revealed a bipyramidal parasporal body. Thurigiensin activity was not detected. CONCLUSIONS: The serovar, Btk176 might be a potential biocontrol agent for houseflies.
DOI: 10.6084/m9.figshare.9276083
title: The use of guava byproduct in the production of feedlot sheep in Brazil: impacts on the productive and economic performance

description: ABSTRACT This study evaluated the effects of replacing ground corn with dehydrated guava (Psidium guajava L.) byproduct, at concentrations of 0.0, 8.2, 16.4, and 24.6% on the intake and digestibility of nutrients as well as on productive and economic performance of lambs. The study included 40 uncastrated feedlot Santa Inês sheep with an average age of 120 days and an average initial weight of 17.4±1.27 kg, distributed in individual stalls in a completely randomized design with four treatments and 10 replicates. Santa Inês sheep fed diets containing higher levels (16.4%) of guava byproduct showed lower weight gain and feed conversion and reached slaughter weight later. Replacing corn with guava byproduct at higher levels increased acid detergent fiber and reduced non-fiber carbohydrate intake and nutrient digestibility. The inclusion of up to 16.4% of guava byproduct in the diet of feedlot sheep is appropriate for maintaining good performance and economic viability of the system.
DOI: 10.6084/m9.figshare.9276089.v1
title: The Teaching of Irrational Numbers in Basic Education and in Mathematics Teacher Education: a vicious circle is underway?

description: Abstract This article presents a reflection about the lack of articulation between the teaching of irrational numbers in Basic Education and in the initial mathematics teacher education. In basic education, the subject is treated with superficiality and little conceptual deepening, basically by way of examples, while in the mathematics teacher initial formation, there is the prevalence of the formalist approach to irrational numbers, which does not enable the future teacher to teach the subject in basic education. Felix Klein had already pointed out the result of this break between undergraduate and basic education in mathematics over a century ago - there is a double discontinuity in teaching. In the case of irrational numbers, more specifically, this mismatch can provoke a vicious cycle: the teacher leaves the university without adequate formation to address the subject in Basic Education, causing the students to reach the university without an adequate image of the irrational number, and the cycle repeats itself.
DOI: 10.6084/m9.figshare.9276077
title: Test for Borrelia spp. in bats in an urban area in the South of Brazil

description: Abstract INTRODUCTION: We investigated the occurrence of relapsing fever (RF) causing Borrelia genus spirochetes in synanthropic bats from the municipality of Maringá, Paraná, South of Brazil. METHODS: Tissue samples from the wings of bats were collected monthly from April 2013 to February 2014 and extracted DNA was used to evaluate the presence of RF causing Borrelia spp. RESULTS: All bat tissues tested negative for RF causing Borrelia spp. CONCLUSIONS: Borrelia spp. do not occur in chiropterans from Maringá.
DOI: 10.6084/m9.figshare.9276080
title: “I’VE FALLEN IN LOVE AND I WANT TO MEET YOU”: A LONGITUDINAL STUDY ON NEW VOLUNTEERS` MOTIVATION

description: ABSTRACT Purpose: To describe motivational factors of new volunteers of a religious foundation, based in Paraíba (Brazilian northeast), the light of the model proposed by Cavalcante (2012) for a longitudinal period of two years. Originality/value: There is no consensus on aspects related to the motivation to perform a voluntary activity, neither in context abroad nor in the Brazilian context. There are high turnover rates of these individuals, due to ease of entering and leaving this activity, without clarity in their causes. It is a longitudinal research, carried out in two opportunities: 2013 and 2015, unpublished in a national context. It attempts to lessen disagreement of voluntary motivations in the national context. NGOs managers might help to assist the maintenance of their recent volunteers. Design/methodology/approach: It is a quantitative research, carried out through a validated model in Brazil, and its factors: altruistic values, social justice, affiliation, learning, and selfish values. Data were analyzed through descriptive statistics (mean, standard deviation, coefficient of variance and percentage), ANOVA (analysis of variance), T test for independent samples and correlation (bivariate). Findings: Civic bias, learning objectives, and NGO identification emerged as the main motivators. There is evidence that greater academic training has an inverse correlation with the tendency to seek the organization just to fill free time. Another finding was that volunteers with higher indices in altruistic motivations tend to act in other institutions as well, the opposite was found for those with motivations that are closer to the selfish profile.
DOI: 10.6084/m9.figshare.9276086.v1
title: Larvicidal and adulticidal effects and ultrastructural changes of larvae midgut epithelium of Musca domestica (Diptera: Muscidae) fed with Bacillus thuringiensis var. kyushuensis

description: Abstract INTRODUCTION: Musca domestica is resistant to many insecticides; hence, biological control is a suitable alternative. METHODS: We evaluated the lethality of strain Btk176 towards the larval and adult M. domestica and the histopathological effects in the larvae midgut. RESULTS: We observed 99% larval and 78.9% adult mortality within 48 hours of spore ingestion (dosage, 2.4×108 CFU/ml). The histopathological effects were consistent with cytotoxicity. PCR analysis showed the presence of the cry1Ba gene. Transmission electron microscopy revealed a bipyramidal parasporal body. Thurigiensin activity was not detected. CONCLUSIONS: The serovar, Btk176 might be a potential biocontrol agent for houseflies.
DOI: 10.6084/m9.figshare.9276077.v1
title: Test for Borrelia spp. in bats in an urban area in the South of Brazil

description: Abstract INTRODUCTION: We investigated the occurrence of relapsing fever (RF) causing Borrelia genus spirochetes in synanthropic bats from the municipality of Maringá, Paraná, South of Brazil. METHODS: Tissue samples from the wings of bats were collected monthly from April 2013 to February 2014 and extracted DNA was used to evaluate the presence of RF causing Borrelia spp. RESULTS: All bat tissues tested negative for RF causing Borrelia spp. CONCLUSIONS: Borrelia spp. do not occur in chiropterans from Maringá.
DOI: 10.6084/m9.figshare.9276080.v1
title: “I’VE FALLEN IN LOVE AND I WANT TO MEET YOU”: A LONGITUDINAL STUDY ON NEW VOLUNTEERS` MOTIVATION

description: ABSTRACT Purpose: To describe motivational factors of new volunteers of a religious foundation, based in Paraíba (Brazilian northeast), the light of the model proposed by Cavalcante (2012) for a longitudinal period of two years. Originality/value: There is no consensus on aspects related to the motivation to perform a voluntary activity, neither in context abroad nor in the Brazilian context. There are high turnover rates of these individuals, due to ease of entering and leaving this activity, without clarity in their causes. It is a longitudinal research, carried out in two opportunities: 2013 and 2015, unpublished in a national context. It attempts to lessen disagreement of voluntary motivations in the national context. NGOs managers might help to assist the maintenance of their recent volunteers. Design/methodology/approach: It is a quantitative research, carried out through a validated model in Brazil, and its factors: altruistic values, social justice, affiliation, learning, and selfish values. Data were analyzed through descriptive statistics (mean, standard deviation, coefficient of variance and percentage), ANOVA (analysis of variance), T test for independent samples and correlation (bivariate). Findings: Civic bias, learning objectives, and NGO identification emerged as the main motivators. There is evidence that greater academic training has an inverse correlation with the tendency to seek the organization just to fill free time. Another finding was that volunteers with higher indices in altruistic motivations tend to act in other institutions as well, the opposite was found for those with motivations that are closer to the selfish profile.
DOI: 10.6084/m9.figshare.9276083.v1
title: The use of guava byproduct in the production of feedlot sheep in Brazil: impacts on the productive and economic performance

description: ABSTRACT This study evaluated the effects of replacing ground corn with dehydrated guava (Psidium guajava L.) byproduct, at concentrations of 0.0, 8.2, 16.4, and 24.6% on the intake and digestibility of nutrients as well as on productive and economic performance of lambs. The study included 40 uncastrated feedlot Santa Inês sheep with an average age of 120 days and an average initial weight of 17.4±1.27 kg, distributed in individual stalls in a completely randomized design with four treatments and 10 replicates. Santa Inês sheep fed diets containing higher levels (16.4%) of guava byproduct showed lower weight gain and feed conversion and reached slaughter weight later. Replacing corn with guava byproduct at higher levels increased acid detergent fiber and reduced non-fiber carbohydrate intake and nutrient digestibility. The inclusion of up to 16.4% of guava byproduct in the diet of feedlot sheep is appropriate for maintaining good performance and economic viability of the system.
DOI: 10.6084/m9.figshare.9276071
title: Larvicidal activity of essential oil from Vitex negundo and Vitex trifolia on dengue vector mosquito Aedes aegypti

description: Abstract INTRODUCTION: The ability of Vitex trifolia and Vitex negundo essential oils to kill Aedes aegypti and Culex quinquefasciatus larvae was evaluated. METHODS: The larvae were treated with their respective essential oils at 50-125 ppm concentration. RESULTS: LC50 and LC90 for V. trifolia against Ae. aegypti and C. quinquefasciatus, and those for V. negundo against Ae. aegypti were 57.7+0.4, 77.9+0.9 ppm and 55.17+3.14, 78.28+2.23 ppm, and 50.86+0.9, 73.12+1.3 ppm, respectively. Eucalyptol and caryophyllene were the major components in Vitex trifolia and Vitex negundo essential oil, respectively. CONCLUSIONS: This study revealed potential larvicidal properties of essential oil from V. trifolia.
DOI: 10.6084/m9.figshare.9276062
title: Does whole body vibration exercise improve oxidative stress markers in women with fibromyalgia?

description: The objective of this study was to investigate the effect of whole body vibration (WBV) exercise on oxidative stress markers in a group of women with fibromyalgia (FM) compared to a group of healthy women (CT). Twenty-one women diagnosed with FM and 21 age- and weight-matched healthy women were enrolled the study. Plasma oxidative stress markers (primary outcomes) were evaluated at rest and after WBV, and included thiobarbituric acid reactive substances (TBARS), iron reduction capacity (FRAP), superoxide dismutase antioxidant enzymes activity (SOD), and catalase (CAT). At rest, the FM group had higher TBARS (P&lt;0.001) and FRAP (P&lt;0.001), and lower CAT (P=0.005) compared to the CT. In the CT group, the WBV had no effect on TBARS (P=0.559) and FRAP (P=0.926), whereas it increased both SOD (P&lt;0.001) and CAT (P&lt;0.001). In the FM group, the WBV reduced TBARS (p &lt;0.001), FRAP (P&lt;0.001), and CAT (P=0.005), while it increased SOD (P=0.019). There was an interaction effect (moments vs groups) in the TBARS (effect size=1.34), FRAP (effect size=0.93), CAT (effect size=1.45), and SOD (effect size=1.44) (P&lt;0.001). A single trial of WBV exercise improved all oxidant and antioxidant parameters towards a greater adaptation to the stress response in FM women.
DOI: 10.6084/m9.figshare.9276071.v1
title: Larvicidal activity of essential oil from Vitex negundo and Vitex trifolia on dengue vector mosquito Aedes aegypti

description: Abstract INTRODUCTION: The ability of Vitex trifolia and Vitex negundo essential oils to kill Aedes aegypti and Culex quinquefasciatus larvae was evaluated. METHODS: The larvae were treated with their respective essential oils at 50-125 ppm concentration. RESULTS: LC50 and LC90 for V. trifolia against Ae. aegypti and C. quinquefasciatus, and those for V. negundo against Ae. aegypti were 57.7+0.4, 77.9+0.9 ppm and 55.17+3.14, 78.28+2.23 ppm, and 50.86+0.9, 73.12+1.3 ppm, respectively. Eucalyptol and caryophyllene were the major components in Vitex trifolia and Vitex negundo essential oil, respectively. CONCLUSIONS: This study revealed potential larvicidal properties of essential oil from V. trifolia.
DOI: 10.6084/m9.figshare.9276062.v1
title: Does whole body vibration exercise improve oxidative stress markers in women with fibromyalgia?

description: The objective of this study was to investigate the effect of whole body vibration (WBV) exercise on oxidative stress markers in a group of women with fibromyalgia (FM) compared to a group of healthy women (CT). Twenty-one women diagnosed with FM and 21 age- and weight-matched healthy women were enrolled the study. Plasma oxidative stress markers (primary outcomes) were evaluated at rest and after WBV, and included thiobarbituric acid reactive substances (TBARS), iron reduction capacity (FRAP), superoxide dismutase antioxidant enzymes activity (SOD), and catalase (CAT). At rest, the FM group had higher TBARS (P&lt;0.001) and FRAP (P&lt;0.001), and lower CAT (P=0.005) compared to the CT. In the CT group, the WBV had no effect on TBARS (P=0.559) and FRAP (P=0.926), whereas it increased both SOD (P&lt;0.001) and CAT (P&lt;0.001). In the FM group, the WBV reduced TBARS (p &lt;0.001), FRAP (P&lt;0.001), and CAT (P=0.005), while it increased SOD (P=0.019). There was an interaction effect (moments vs groups) in the TBARS (effect size=1.34), FRAP (effect size=0.93), CAT (effect size=1.45), and SOD (effect size=1.44) (P&lt;0.001). A single trial of WBV exercise improved all oxidant and antioxidant parameters towards a greater adaptation to the stress response in FM women.
DOI: 10.6084/m9.figshare.9276059
title: Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil

description: ABSTRACT Micronutrient research for sugarcane in northeastern Brazil is scarce and most works on this issue date back to the 70’s and 80’s. The objectives of this study were to assess the available and reserve pools of Fe, Mn, Cu, and Zn in soils cultivated with sugarcane under three geological contexts in northeastern Brazil as well as to diagnose the micronutrient nutritional status of sugarcane grown on these areas in order to identify pedogeological conditions in which micronutrient deficiencies are likely. Results showed that the soils cultivated with sugarcane in the states of Paraíba and Pernambuco posed available and reserve contents of micronutrients related to the parent materials and soil textural classes. The reserve contents of Fe, Mn, Zn, and Cu in all the soil samples analyzed were below the background values established for the region, which indicates a continuous exportation of micronutrients through cultivation. The mean and median contents of Mn, Zn, and Cu in diagnostic leaves of sugarcane were below their respective nutritional optimum ranges recommended to Brazil while Fe contents achieved the crop nutritional requirement. This is the first time such an approach based on pedogeological contexts is used to study the available and reserve pools of micronutrients in soils of Northeast Brazil.
DOI: 10.6084/m9.figshare.9276050
title: Evaluation of the WRF ability to represent the precipitation in the Amazon using a different scales

description: Abstract Precipitation over the northern Amazon during the austral summer and autumn seasons of the 1988- 1999 was simulated using the Regional Weather Research and Forecasting (WRF) model, with downscaling approach with nested domains of 45 and 15 km. The boundary and initial conditions were obtained from the Climate Forecast System Reanalysis (CFSR) of the National Centers for Environmental Prediction (NCEP). The model skill was tested using different reanalyzed precipitation datasets that represent different space scales. The bias of the model shows seasonal and spatial dependences, with positive bias in southwestern Brazilian Amazon during summer and in northwestern South America during autumn. The downscaling was needed to reproduce the surface influences on the regional and local systems that affect the rainfall distribution in the region. The WRF model, in general, reproduces the main observed precipitation patterns, without the dry bias, typical of general circulation models (GCM). The results indicate that the dynamic downscaling technique improves the WRF model performance for the seasonal climate forecast in the Amazon region.
DOI: 10.6084/m9.figshare.9276059.v1
title: Assessing the Content of Micronutrients in Soils and Sugarcane in Different Pedogeological Contexts of Northeastern Brazil

description: ABSTRACT Micronutrient research for sugarcane in northeastern Brazil is scarce and most works on this issue date back to the 70’s and 80’s. The objectives of this study were to assess the available and reserve pools of Fe, Mn, Cu, and Zn in soils cultivated with sugarcane under three geological contexts in northeastern Brazil as well as to diagnose the micronutrient nutritional status of sugarcane grown on these areas in order to identify pedogeological conditions in which micronutrient deficiencies are likely. Results showed that the soils cultivated with sugarcane in the states of Paraíba and Pernambuco posed available and reserve contents of micronutrients related to the parent materials and soil textural classes. The reserve contents of Fe, Mn, Zn, and Cu in all the soil samples analyzed were below the background values established for the region, which indicates a continuous exportation of micronutrients through cultivation. The mean and median contents of Mn, Zn, and Cu in diagnostic leaves of sugarcane were below their respective nutritional optimum ranges recommended to Brazil while Fe contents achieved the crop nutritional requirement. This is the first time such an approach based on pedogeological contexts is used to study the available and reserve pools of micronutrients in soils of Northeast Brazil.
DOI: 10.6084/m9.figshare.9276044
title: Recurrent hepatitis C treatment with direct acting antivirals – a real life study at a Brazilian liver transplant center

description: Recurrent hepatitis C (HCV) after liver transplantation (LT) is an important cause of morbidity and mortality. Antiviral treatment is recommended to avoid unfavorable outcomes. Direct-acting antivirals (DAA) have transformed HCV treatment, with higher efficacy and fewer side-effects than interferon-based therapies traditionally used. To evaluate DAA treatment outcomes at a Brazilian transplant unit, data of patients who finished HCV treatment at the Liver Transplant Unit of the University of Campinas were analyzed. Treatment consisted of sofosbuvir, daclatasvir, and ribavirin, for 12 or 24 weeks, according to the national guidelines. Fifty-five patients completed antiviral treatment and 54 had HCV-viral load results available. The majority of patients were male (78%), 58 years old on average, 65% had hepatocellular carcinoma (HCC) before LT, and 67% were interferon treatment-experienced. Most patients had HCV genotype 1 (65%), 35% had genotype 3, and started treatment on an average of 38 months after LT (range: 2–228). Fifty-eight percent were treated for 12 weeks and 42% for 24 weeks, using a mean dose of ribavirin of 10.1 mg/kg (4.2–16.1). There were no treatment interruptions due to serious side effects. The sustained virological response rate was 98%. Only one patient relapsed, a genotype 3 cirrhotic treated for 12 weeks. The average follow-up after starting antivirals was 20 months. There were no recurrences of HCC, but there was one rejection episode and one cirrhosis decompensation episode, both 12 weeks after treatment. DAA treatment is safe and effective in the post-LT setting and was not associated to HCC recurrence in the cohort studied.
DOI: 10.6084/m9.figshare.9276050.v1
title: Evaluation of the WRF ability to represent the precipitation in the Amazon using a different scales

description: Abstract Precipitation over the northern Amazon during the austral summer and autumn seasons of the 1988- 1999 was simulated using the Regional Weather Research and Forecasting (WRF) model, with downscaling approach with nested domains of 45 and 15 km. The boundary and initial conditions were obtained from the Climate Forecast System Reanalysis (CFSR) of the National Centers for Environmental Prediction (NCEP). The model skill was tested using different reanalyzed precipitation datasets that represent different space scales. The bias of the model shows seasonal and spatial dependences, with positive bias in southwestern Brazilian Amazon during summer and in northwestern South America during autumn. The downscaling was needed to reproduce the surface influences on the regional and local systems that affect the rainfall distribution in the region. The WRF model, in general, reproduces the main observed precipitation patterns, without the dry bias, typical of general circulation models (GCM). The results indicate that the dynamic downscaling technique improves the WRF model performance for the seasonal climate forecast in the Amazon region.