cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.15156915.v2
title: NeuralNetwork

description: Multi-fidelity tabular data for Neural Network hyperparameter space for HPOBench
DOI: 10.6084/m9.figshare.19923718
title: Benthic invertebrates associated with the aquatic macrophytes in a Brazilian subtropical reservoir

description: ABSTRACT Human activities affect the availability and quality of water in many aquatic ecosystems. The Santa Bárbara Dam is an important source of public water supply in the city of Pelotas, Rio Grande do Sul, Brazil, which has been undergoing an accelerated eutrophication process, thus making it important to use environmental monitoring as a control tool for these sources. The aim of this study was to evaluate the community of benthic macroinvertebrates in the roots of floating aquatic macrophytes and their connection with water quality in the Santa Bárbara Dam accumulation basin. Four samples were taken in 2018, in two environments of this ecosystem. Physical-chemical analyses were conducted to correlate with biological analyses. Benthic macroinvertebrates taken from the roots of floating aquatic macrophytes were screened and identified at the lowest possible taxonomic level. For data analysis, multiple regression analysis, ANOVA, and Principal Component Analysis were used. Benthic macroinvertebrates were also analyzed for frequency, richness and abundance, and the Shannon-Wiener diversity index. It was possible to register 13.154 specimens of benthic macroinvertebrates associated with 100 g of dry weight of floating aquatic macrophytes, divided into 35 taxa, and distributed in 09 orders and 27 families. The most abundant groups were Amphipoda, Chironomidae, and Oligochaeta. The diversity index showed an average of H ‘= 1.67, classifying the aquatic ecosystem as moderately polluted. The tools used in this study are useful for managing and preservation of water sources, especially those used for public supply.
DOI: 10.6084/m9.figshare.19923718.v1
title: Benthic invertebrates associated with the aquatic macrophytes in a Brazilian subtropical reservoir

description: ABSTRACT Human activities affect the availability and quality of water in many aquatic ecosystems. The Santa Bárbara Dam is an important source of public water supply in the city of Pelotas, Rio Grande do Sul, Brazil, which has been undergoing an accelerated eutrophication process, thus making it important to use environmental monitoring as a control tool for these sources. The aim of this study was to evaluate the community of benthic macroinvertebrates in the roots of floating aquatic macrophytes and their connection with water quality in the Santa Bárbara Dam accumulation basin. Four samples were taken in 2018, in two environments of this ecosystem. Physical-chemical analyses were conducted to correlate with biological analyses. Benthic macroinvertebrates taken from the roots of floating aquatic macrophytes were screened and identified at the lowest possible taxonomic level. For data analysis, multiple regression analysis, ANOVA, and Principal Component Analysis were used. Benthic macroinvertebrates were also analyzed for frequency, richness and abundance, and the Shannon-Wiener diversity index. It was possible to register 13.154 specimens of benthic macroinvertebrates associated with 100 g of dry weight of floating aquatic macrophytes, divided into 35 taxa, and distributed in 09 orders and 27 families. The most abundant groups were Amphipoda, Chironomidae, and Oligochaeta. The diversity index showed an average of H ‘= 1.67, classifying the aquatic ecosystem as moderately polluted. The tools used in this study are useful for managing and preservation of water sources, especially those used for public supply.
DOI: 10.6084/m9.figshare.19920867
title: History curricula in England, Portugal and Spain: different contexts and similar issues

description: ABSTRACT We examine the curricula in three different countries: Spain, Portugal and England. We first provide a description of the context and its curricular tradition. We then examine the aims, the historical and geographical scales, the programmes of study and the pedagogical approaches. We focus on secondary education, although age groups are not entirely coincident. There are apparent differences related to curricula development, critical debates, and priorities. We prioritise examining the role of teachers, the use of history to approach contemporary debates, and the relationship between history and citizenship education. Although there are significant differences, there are also similarities in the way each country approaches common issues.
DOI: 10.6084/m9.figshare.19920867.v1
title: History curricula in England, Portugal and Spain: different contexts and similar issues

description: ABSTRACT We examine the curricula in three different countries: Spain, Portugal and England. We first provide a description of the context and its curricular tradition. We then examine the aims, the historical and geographical scales, the programmes of study and the pedagogical approaches. We focus on secondary education, although age groups are not entirely coincident. There are apparent differences related to curricula development, critical debates, and priorities. We prioritise examining the role of teachers, the use of history to approach contemporary debates, and the relationship between history and citizenship education. Although there are significant differences, there are also similarities in the way each country approaches common issues.
DOI: 10.6084/m9.figshare.15173517
title: RandomForest

description: Multi-fidelity tabular data for Random Forest hyperparameter space for HPOBench
DOI: 10.6084/m9.figshare.19923719
title: Light intensities alter growth and essential oil of patchouli under shade nets

description: ABSTRACT: Pogostemon cablin (Blanco) Benth. is an aromatic species popularly known as patchouli. The essential oil rich in patchoulol extracted from leaves is used by the pharmaceutical industries. The objective was to investigate the effects of shade nets and shading intensities on P. cablin growth, anatomy, chemical composition and essential oil content. The experiment was conducted with two types of shade nets (black and Aluminet), three light intensities (30, 50, and 70% shading) and full sun. The different light intensities influenced the growth and the essential oil yield, and chemical composition. Patchouli plants grown in an environment with shading showed higher values for the leaf, stem, root ant total dry weights compared to full sun. At 50% of shading, Aluminet provided gain in stem and total dry weights. Aluminet and black net at 50 and 70% of shading enhance essential oil yield. Patchoulol and pogostol contents were higher under full sun, and, black net and Aluminet at 50% shading. The environment for patchouli cultivation can be improved by use shade nets, especially with Aluminet at 50% of shading.
DOI: 10.6084/m9.figshare.19923719.v1
title: Light intensities alter growth and essential oil of patchouli under shade nets

description: ABSTRACT: Pogostemon cablin (Blanco) Benth. is an aromatic species popularly known as patchouli. The essential oil rich in patchoulol extracted from leaves is used by the pharmaceutical industries. The objective was to investigate the effects of shade nets and shading intensities on P. cablin growth, anatomy, chemical composition and essential oil content. The experiment was conducted with two types of shade nets (black and Aluminet), three light intensities (30, 50, and 70% shading) and full sun. The different light intensities influenced the growth and the essential oil yield, and chemical composition. Patchouli plants grown in an environment with shading showed higher values for the leaf, stem, root ant total dry weights compared to full sun. At 50% of shading, Aluminet provided gain in stem and total dry weights. Aluminet and black net at 50 and 70% of shading enhance essential oil yield. Patchoulol and pogostol contents were higher under full sun, and, black net and Aluminet at 50% shading. The environment for patchouli cultivation can be improved by use shade nets, especially with Aluminet at 50% of shading.
DOI: 10.6084/m9.figshare.15173517.v3
title: RandomForest

description: Multi-fidelity tabular data for Random Forest hyperparameter space for HPOBench
DOI: 10.6084/m9.figshare.15155919
title: XGBoost

description: Multi-fidelity tabular data for XGBoost hyperparameter space for HPOBench
DOI: 10.6084/m9.figshare.15155919.v3
title: XGBoost

description: Multi-fidelity tabular data for XGBoost hyperparameter space for HPOBench
DOI: 10.6084/m9.figshare.19923725.v1
title: How regional organizations cope with recurrent stress: the case of South America

description: Abstract Barely 15 years after the 2008 financial crisis and in a context of rising nationalism, regional organizations are facing multiple challenges. This article introduces an analytical framework that systematizes stressors and identifies characteristics that might help regional organizations to cope with stress. It draws on psychological models of how individuals cope with stress to explore how regional organizations grapple with a sequence of stress situations. Stress factors can aggravate pre-existing problems in regionalism and contribute to regional disintegration. But they can also trigger counter-reactions and strengthen the resilience of regionalism. To substantiate our arguments, we study the repercussions of two recent crises for South American regionalism: the political crisis in Venezuela and the Covid-19 pandemic.
DOI: 10.6084/m9.figshare.19923725
title: How regional organizations cope with recurrent stress: the case of South America

description: Abstract Barely 15 years after the 2008 financial crisis and in a context of rising nationalism, regional organizations are facing multiple challenges. This article introduces an analytical framework that systematizes stressors and identifies characteristics that might help regional organizations to cope with stress. It draws on psychological models of how individuals cope with stress to explore how regional organizations grapple with a sequence of stress situations. Stress factors can aggravate pre-existing problems in regionalism and contribute to regional disintegration. But they can also trigger counter-reactions and strengthen the resilience of regionalism. To substantiate our arguments, we study the repercussions of two recent crises for South American regionalism: the political crisis in Venezuela and the Covid-19 pandemic.
DOI: 10.6084/m9.figshare.19923727
title: Methodology for extraction of microplastics associated with sediments from freshwater environments

description: ABSTRACT Inadequate disposal of plastic materials, due to their quantity and characteristics, has caused significant negative impacts on aquatic environments. Studies on microplastics, plastic particles smaller than 5 mm in their largest dimension, have been intensified in recent years. However, studies with this approach in freshwater sediments are still incipient. In this sense, the present research aimed at testing the effectiveness of the extraction of microplastics associated with sediments from freshwater environments. Experimental studies were carried out in laboratory, using methodologies based on density difference (addition of saturated solutions of sucrose and sodium chloride) and dry sediment samples. Overall, the treatment based on addition of saturated solution of sucrose presented a higher extraction efficiency when compared with the other treatments. In the treatment in which the dry sample was analyzed, there was greater difficulty in separating and identifying the plastic fragments due to the similarity of shape and/or color between the fragments and the sediment particles. A methodology of low operational cost, low environmental impact, and easy application was developed, capable of enabling the monitoring of microplastics present in freshwater sediments, and consequently providing subsidies for decision makers for proposing measures to reduce and control the pollution by plastic materials.
DOI: 10.6084/m9.figshare.19923727.v1
title: Methodology for extraction of microplastics associated with sediments from freshwater environments

description: ABSTRACT Inadequate disposal of plastic materials, due to their quantity and characteristics, has caused significant negative impacts on aquatic environments. Studies on microplastics, plastic particles smaller than 5 mm in their largest dimension, have been intensified in recent years. However, studies with this approach in freshwater sediments are still incipient. In this sense, the present research aimed at testing the effectiveness of the extraction of microplastics associated with sediments from freshwater environments. Experimental studies were carried out in laboratory, using methodologies based on density difference (addition of saturated solutions of sucrose and sodium chloride) and dry sediment samples. Overall, the treatment based on addition of saturated solution of sucrose presented a higher extraction efficiency when compared with the other treatments. In the treatment in which the dry sample was analyzed, there was greater difficulty in separating and identifying the plastic fragments due to the similarity of shape and/or color between the fragments and the sediment particles. A methodology of low operational cost, low environmental impact, and easy application was developed, capable of enabling the monitoring of microplastics present in freshwater sediments, and consequently providing subsidies for decision makers for proposing measures to reduce and control the pollution by plastic materials.
DOI: 10.6084/m9.figshare.19923731
title: PSA density of the lesion: a mathematical formula that uses clinical and pathological data to predict biochemical recurrence in prostate cancer patients

description: ABSTRACT A main challenge in the clinical management of prostate cancer is to identify which tumor is aggressive and needs invasive treatment. Thus, being able to predict which cancer will progress to biochemical recurrence is a great strategy to stratify prostate cancer patients. With that in mind, we created a mathematical formula that takes into account the patients clinical and pathological data resulting in a quantitative variable, called PSA density of the lesion, which has the potential to predict biochemical recurrence. To test if our variable is able to predict biochemical recurrence, we use a cohort of 219 prostate cancer patients, associating our new variable and classic parameters of prostate cancer with biochemical recurrence. Total PSA, lesion weight, volume and classic PSA density were positively associated with biochemical recurrence (p&lt;0.05). ISUP score was also associated with biochemical recurrence in both biopsy and surgical specimen (p&lt;0.001). The increase of PSA density of the lesion was significantly associated with the biochemical recurrence (p=0.03). Variables derived from the formula, PSA 15% and PSA 152, were also positive associated with the biochemical recurrence (p=0.01 and p=0.002 respectively). Logistic regression analysis shows that classic PSA density, PSA density of the lesion and total PSA, together, can explain up to 13% of cases of biochemical recurrence. PSA density of the lesion alone would have the ability to explain up to 7% of cases of biochemical recurrence. In conclusion, this new mathematical approach could be a useful tool to predict disease recurrence in prostate cancer.
DOI: 10.6084/m9.figshare.19923731.v1
title: PSA density of the lesion: a mathematical formula that uses clinical and pathological data to predict biochemical recurrence in prostate cancer patients

description: ABSTRACT A main challenge in the clinical management of prostate cancer is to identify which tumor is aggressive and needs invasive treatment. Thus, being able to predict which cancer will progress to biochemical recurrence is a great strategy to stratify prostate cancer patients. With that in mind, we created a mathematical formula that takes into account the patients clinical and pathological data resulting in a quantitative variable, called PSA density of the lesion, which has the potential to predict biochemical recurrence. To test if our variable is able to predict biochemical recurrence, we use a cohort of 219 prostate cancer patients, associating our new variable and classic parameters of prostate cancer with biochemical recurrence. Total PSA, lesion weight, volume and classic PSA density were positively associated with biochemical recurrence (p&lt;0.05). ISUP score was also associated with biochemical recurrence in both biopsy and surgical specimen (p&lt;0.001). The increase of PSA density of the lesion was significantly associated with the biochemical recurrence (p=0.03). Variables derived from the formula, PSA 15% and PSA 152, were also positive associated with the biochemical recurrence (p=0.01 and p=0.002 respectively). Logistic regression analysis shows that classic PSA density, PSA density of the lesion and total PSA, together, can explain up to 13% of cases of biochemical recurrence. PSA density of the lesion alone would have the ability to explain up to 7% of cases of biochemical recurrence. In conclusion, this new mathematical approach could be a useful tool to predict disease recurrence in prostate cancer.
DOI: 10.6084/m9.figshare.19923740
title: Chitosan and phenolic compounds in the control of anthracnose in mango

description: Abstract Mango (Mangifera indica L.) has great socioeconomic importance to Brazil, but its production is affected by anthracnose. Chitosan films have shown potential in controlling this disease. In this study, the effect of the association of chitosan with phenolic compounds and extracts on the Colletotrichum tropicaledevelopment was evaluated. Phenolic compounds and extracts from mango peel were incorporated into 2.0% chitosan solutions and tested in vitro. In the in vivo experiment, after pathogen inoculation and application of treatments, fruits were evaluated for anthracnose incidence and severity. Controls consisted of the application of water or pure culture medium and fungicide imazalil. The experimental design was completely randomized and data were submitted to analysis of variance. In the in vitro test and in the assessment of disease intensity, means were compared using the Scott-Knott and Tukey tests (p &lt;0.05), respectively. Controls were compared to the other treatments using the Dunnett test (p &lt;0.05). Total growth inhibition, conidia production and C. tropicale germination were verified with the incorporation of citric, pyrocatecoic and transcinamic acids to chitosan, with no significant difference between them and the fungicide. Low anthracnose incidence and severity was observed in mangoes treated with chitosan combined with phenolic compounds.
DOI: 10.6084/m9.figshare.19923740.v1
title: Chitosan and phenolic compounds in the control of anthracnose in mango

description: Abstract Mango (Mangifera indica L.) has great socioeconomic importance to Brazil, but its production is affected by anthracnose. Chitosan films have shown potential in controlling this disease. In this study, the effect of the association of chitosan with phenolic compounds and extracts on the Colletotrichum tropicaledevelopment was evaluated. Phenolic compounds and extracts from mango peel were incorporated into 2.0% chitosan solutions and tested in vitro. In the in vivo experiment, after pathogen inoculation and application of treatments, fruits were evaluated for anthracnose incidence and severity. Controls consisted of the application of water or pure culture medium and fungicide imazalil. The experimental design was completely randomized and data were submitted to analysis of variance. In the in vitro test and in the assessment of disease intensity, means were compared using the Scott-Knott and Tukey tests (p &lt;0.05), respectively. Controls were compared to the other treatments using the Dunnett test (p &lt;0.05). Total growth inhibition, conidia production and C. tropicale germination were verified with the incorporation of citric, pyrocatecoic and transcinamic acids to chitosan, with no significant difference between them and the fungicide. Low anthracnose incidence and severity was observed in mangoes treated with chitosan combined with phenolic compounds.
DOI: 10.6084/m9.figshare.19923739.v1
title: ASSESSING THE VALUE OF SUBJECTIVE VIEWS ON MACROECONOMIC FACTORS VIA BLACK-LITTERMAN BASED PORTFOLIO OPTIMIZATION

description: ABSTRACT Black and Litterman proposed a portfolio selection model that blends investor’s views on asset returns with market equilibrium concepts to construct optimal portfolios. However, the model efficiency relies on the performance of investors’ views regarding tradable assets, which is challenging in practice. Venturing to improve Black-Litterman practical application, this work provides new insights based on views about macroeconomic factors, which are largely available, though not directly tradable. The main advantage is that market players usually provide predictions on these factors publicly. We present a case study based on the information disclosed by the Brazilian Central Bank to validate the proposed framework. The out-of-sample, risk-adjusted returns obtained incorporating the players’ macroeconomic expectations applying the proposed framework outperformed the traditional mean-variance model as well as the Brazilian stock index benchmark.
DOI: 10.6084/m9.figshare.19923739
title: ASSESSING THE VALUE OF SUBJECTIVE VIEWS ON MACROECONOMIC FACTORS VIA BLACK-LITTERMAN BASED PORTFOLIO OPTIMIZATION

description: ABSTRACT Black and Litterman proposed a portfolio selection model that blends investor’s views on asset returns with market equilibrium concepts to construct optimal portfolios. However, the model efficiency relies on the performance of investors’ views regarding tradable assets, which is challenging in practice. Venturing to improve Black-Litterman practical application, this work provides new insights based on views about macroeconomic factors, which are largely available, though not directly tradable. The main advantage is that market players usually provide predictions on these factors publicly. We present a case study based on the information disclosed by the Brazilian Central Bank to validate the proposed framework. The out-of-sample, risk-adjusted returns obtained incorporating the players’ macroeconomic expectations applying the proposed framework outperformed the traditional mean-variance model as well as the Brazilian stock index benchmark.
DOI: 10.6084/m9.figshare.19923743.v1
title: Meanings of work for manicurists and hairdressers: employees and pejotizados

description: Abstract The research aimed to identify the differentiation of meanings of work among beauty salon workers, considering the work contracts and the functions performed (hairdressers and manicurists), in a context of pejotização and functions’ internal hierarchy. We applied questionnaires to 171 manicurists and hairdressers with the following types of links: employee, informal, MEI pejotizado and MEI não pejotizado. The results indicated that employees perceive with greater intensity the work as a responsibility and as a way of being socially included, and more proportionality in social and financial retribution. They also indicated that manicurists experience with more intensity the characteristics of brutalization, discrimination and demand.