cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.22308721.v1
title: Fish functional trophic groups in headwater karst streams from the Upper Paraguay River basin

description: Abstract Data obtained by direct observation of organisms in their natural habitats can provide valuable contributions regarding intra- and inter-specific interactions, as well as spatial distribution and trophic relationships. However, relatively few such data are available for the Neotropical ichthyofauna relative to the great species diversity of this region. We present data on the ichthyofauna in karst environments of the Serra da Bodoquena, Upper Paraguay River basin regarding their categorization into functional trophic groups. We used direct observations that focused on the most frequent feeding tactics and their spatial (vertical and horizontal) distribution in the channel. We observed 83 fish species in 17 functional trophic groups. The greatest species richness was concentrated in the Characidae and Loricariidae in the categories Diurnal Backwater Drift Feeders and Grazers, respectively. Regarding horizontal depth stratification, we found a positive relationship between the association of small fish with the shallow marginal habitats. This work represents a contribution to a region known for its high tourist potential and to the important diversity of the entire ichthyofauna of the Upper Paraguay basin region that requires proper conservation strategies for sustaining these species.
DOI: 10.6084/m9.figshare.22308724
title: Sexuality, sociability, work, and HIV prevention among vulnerable populations during the COVID-19 pandemic

description: ABSTRACT The COVID-19 pandemic has restricted access to HIV/AIDS prevention and services, affecting individual living and health conditions. We aimed to analyze the access of Men Who Have Sex with Men (MSM) and transgender women to HIV prevention technologies, their sexual, sociability, and work practices during the COVID-19 pandemic in Curitiba (PR), Brazil. We implemented virtual semi-structured interviews and adopted the conceptual framework of vulnerability. The MaxQDA software facilitated the analysis. The results showed that many MSM managed to isolate themselves socially, restricting sexual partnerships while some lost their jobs, and income decline revolved among self-employed or freelancers. Female/trans sex workers had to stop social distancing to return to sex work, exposing themselves to the coronavirus. Pre-Exposure Prophylaxis (PrEP) was adopted by those already using it. The of PrEP and Post-Exposure Prophylaxis (PEP) offer was preserved but modified. Specialized services adapted the attendance but generated users’ exposure and serological status disclosure. In conclusion, we highlight the need for continuous HIV services in public health emergencies, a State-guaranteed right.
DOI: 10.6084/m9.figshare.22308724.v1
title: Sexuality, sociability, work, and HIV prevention among vulnerable populations during the COVID-19 pandemic

description: ABSTRACT The COVID-19 pandemic has restricted access to HIV/AIDS prevention and services, affecting individual living and health conditions. We aimed to analyze the access of Men Who Have Sex with Men (MSM) and transgender women to HIV prevention technologies, their sexual, sociability, and work practices during the COVID-19 pandemic in Curitiba (PR), Brazil. We implemented virtual semi-structured interviews and adopted the conceptual framework of vulnerability. The MaxQDA software facilitated the analysis. The results showed that many MSM managed to isolate themselves socially, restricting sexual partnerships while some lost their jobs, and income decline revolved among self-employed or freelancers. Female/trans sex workers had to stop social distancing to return to sex work, exposing themselves to the coronavirus. Pre-Exposure Prophylaxis (PrEP) was adopted by those already using it. The of PrEP and Post-Exposure Prophylaxis (PEP) offer was preserved but modified. Specialized services adapted the attendance but generated users’ exposure and serological status disclosure. In conclusion, we highlight the need for continuous HIV services in public health emergencies, a State-guaranteed right.
DOI: 10.6084/m9.figshare.22308723
title: Spatial variability of physical atributes of a Spodosol and sugarcane yield

description: ABSTRACT Agricultural practices promote alterations in the physical properties of the soil, causing changes in its bulk density, porosity, distribution of pore diameter and water retention, which influences the availability to the plants. Precision agriculture acts as a tool that assists in soil management, favoring agricultural yield. The objective of this study was to evaluate the influence of the spatial variability of the physical attributes of a Spodosol on sugarcane yield. Soil sampling and crop yield evaluations were performed at 90 randomly chosen points in the experimental area. Disturbed and undisturbed samples were collected in the soil layers of 0.00-0.20 and 0.20-0.40 m to analyze the attributes: particle size, bulk density, field capacity, total porosity, macroporosity and microporosity. The highest sugarcane yields were observed in regions with more aerated soil, with lower bulk density and higher total porosity, and with greater water retention capacity in the 0.00-0.20 m layer. It was not possible to detect spatial dependence for the granulometric fractions of the soil with the sampling scheme used, except for the clay in the 0.20-0.40 m layer. The spherical model was the one that best fitted to the set of data of the studied variables.
DOI: 10.6084/m9.figshare.22308723.v1
title: Spatial variability of physical atributes of a Spodosol and sugarcane yield

description: ABSTRACT Agricultural practices promote alterations in the physical properties of the soil, causing changes in its bulk density, porosity, distribution of pore diameter and water retention, which influences the availability to the plants. Precision agriculture acts as a tool that assists in soil management, favoring agricultural yield. The objective of this study was to evaluate the influence of the spatial variability of the physical attributes of a Spodosol on sugarcane yield. Soil sampling and crop yield evaluations were performed at 90 randomly chosen points in the experimental area. Disturbed and undisturbed samples were collected in the soil layers of 0.00-0.20 and 0.20-0.40 m to analyze the attributes: particle size, bulk density, field capacity, total porosity, macroporosity and microporosity. The highest sugarcane yields were observed in regions with more aerated soil, with lower bulk density and higher total porosity, and with greater water retention capacity in the 0.00-0.20 m layer. It was not possible to detect spatial dependence for the granulometric fractions of the soil with the sampling scheme used, except for the clay in the 0.20-0.40 m layer. The spherical model was the one that best fitted to the set of data of the studied variables.
DOI: 10.6084/m9.figshare.22268579
title: Did Azara discover Myotis simus or Myotis midastacus (Mammalia: Chiroptera: Vespertilionidae) at least a century before their formal description?

description: ABSTRACT The true identity of the “Chauve-Souris Onzieme ou Chauve-Souris Cannelle” of Azara (1801) and the “LXXXII Murcielago Acanelado” of Azara (1802) has never been clarified. Though it has historically been associated with the Red Myotis, Myotis ruber (É. Geoffroy St.-Hilaire, 1806), there are clear inconsistencies with that species. Unusual features of the description such as the position of the attachment of the wing membrane to the limbs confirm that the species described by Azara belongs to the Myotis simus Thomas, 1901 group. Two members of that group occur in Paraguay, from where Azara described his specimen: Myotis cf. simus and the recently described Myotis midastacus Moratelli & Wilson, 2014. Measurements and collection locality slightly favour its identity as the former, but it is not possible to conclusively state which of these species Azara had in his possession.
DOI: 10.6084/m9.figshare.22268579.v1
title: Did Azara discover Myotis simus or Myotis midastacus (Mammalia: Chiroptera: Vespertilionidae) at least a century before their formal description?

description: ABSTRACT The true identity of the “Chauve-Souris Onzieme ou Chauve-Souris Cannelle” of Azara (1801) and the “LXXXII Murcielago Acanelado” of Azara (1802) has never been clarified. Though it has historically been associated with the Red Myotis, Myotis ruber (É. Geoffroy St.-Hilaire, 1806), there are clear inconsistencies with that species. Unusual features of the description such as the position of the attachment of the wing membrane to the limbs confirm that the species described by Azara belongs to the Myotis simus Thomas, 1901 group. Two members of that group occur in Paraguay, from where Azara described his specimen: Myotis cf. simus and the recently described Myotis midastacus Moratelli & Wilson, 2014. Measurements and collection locality slightly favour its identity as the former, but it is not possible to conclusively state which of these species Azara had in his possession.
DOI: 10.6084/m9.figshare.22308726
title: Growth curves of broilers fed different nutritional relationships using the Gompertz model

description: ABSTRACT. The study aimed to evaluate performance and growth curves of broilers fed different nutritional relations. A total of 1,440 Cobb-500 male day-old chicks were assigned to eight treatments in a 2 x 2 x 2 factorial arrangement with six replicates of 30 birds each. The main factors were nutritional density (control and high), lysine source (HCl and sulfate), and calcium pidolate (presence and absence). Analyses were made for body weight gain (BWG), and feed conversion rate (FCR) at 21, and 42 days of age. The growth curves were adjusted by weighing a bird per plot every three days. Data for BWG were tested by ANOVA to evaluate the effects of treatments and their interactions at 5% significance, and the Gompertz model was adjusted by NLS. Birds fed a high nutritional density had higher BWG and lower FCR. Calcium pidolate and different sources of lysine did not influence the FCR of broilers, however a triple interaction was evidenced for BWG at 1 to 42 days of age. The day with maximum gain adjusted by Gompertz of all treatments was at the 32nd day of age and the maximum weight (A) was around 5.85 kg.
DOI: 10.6084/m9.figshare.22308726.v1
title: Growth curves of broilers fed different nutritional relationships using the Gompertz model

description: ABSTRACT. The study aimed to evaluate performance and growth curves of broilers fed different nutritional relations. A total of 1,440 Cobb-500 male day-old chicks were assigned to eight treatments in a 2 x 2 x 2 factorial arrangement with six replicates of 30 birds each. The main factors were nutritional density (control and high), lysine source (HCl and sulfate), and calcium pidolate (presence and absence). Analyses were made for body weight gain (BWG), and feed conversion rate (FCR) at 21, and 42 days of age. The growth curves were adjusted by weighing a bird per plot every three days. Data for BWG were tested by ANOVA to evaluate the effects of treatments and their interactions at 5% significance, and the Gompertz model was adjusted by NLS. Birds fed a high nutritional density had higher BWG and lower FCR. Calcium pidolate and different sources of lysine did not influence the FCR of broilers, however a triple interaction was evidenced for BWG at 1 to 42 days of age. The day with maximum gain adjusted by Gompertz of all treatments was at the 32nd day of age and the maximum weight (A) was around 5.85 kg.
DOI: 10.6084/m9.figshare.22308729
title: Factors associated with women diagnosed with syphilis who received prenatal care in a primary healthcare unit

description: ABSTRACT Objective To estimate the prevalence of syphilis and its associated factors in women who were treated at public maternity hospitals and received prenatal care in a primary healthcare unit. Methods This cross-sectional study included 399 postpartum women. Interviews were conducted, and additional data were extracted from the pregnant woman’s booklet, medical records, and printed tests. The dependent variable was a gestational syphilis diagnosis. The independent variables were grouped into socioeconomic and demographic, behavioral, reproductive, and prenatal blocks. The prevalence, prevalence ratios, and 95% confidence intervals (95%CI) were calculated. The χ 2 test was also performed (p≤0.05). Multivariate analysis was performed using Poisson regression models. Results The prevalence of gestational syphilis was 9.61% (95%CI: 7.14-12.83). We identified the following determining factors (adjusted prevalence ratios): history of sexually transmitted infections (2.3), first sexual intercourse by the age of 15 (2.42), partner having a history of syphilis (5.98), partner using crack/cocaine (6.42) and marijuana and others (3.02), not having a partner (3.07), low income (2.85), history of stillbirth (5.21), beginning prenatal care in the third trimester (3.15), and prenatal care received in a primary healthcare unit (without a Family Health Strategy team) (0.35). Conclusion Individual and prenatal factors were associated with gestational syphilis. To control congenital syphilis, targeted interventions are needed to control syphilis in the adult population including expansion of access to quality prenatal care with identification of risks for syphilis and connection between prevention and treatment actions, implementation of strategies focused on early sexual education, effective establish prenatal care involving both partners, and effective implementation of the National Men’s Health Policy (PNAISH - Política Nacional de Atenção Integral à Saúde dos Homens ).
DOI: 10.6084/m9.figshare.22308729.v1
title: Factors associated with women diagnosed with syphilis who received prenatal care in a primary healthcare unit

description: ABSTRACT Objective To estimate the prevalence of syphilis and its associated factors in women who were treated at public maternity hospitals and received prenatal care in a primary healthcare unit. Methods This cross-sectional study included 399 postpartum women. Interviews were conducted, and additional data were extracted from the pregnant woman’s booklet, medical records, and printed tests. The dependent variable was a gestational syphilis diagnosis. The independent variables were grouped into socioeconomic and demographic, behavioral, reproductive, and prenatal blocks. The prevalence, prevalence ratios, and 95% confidence intervals (95%CI) were calculated. The χ 2 test was also performed (p≤0.05). Multivariate analysis was performed using Poisson regression models. Results The prevalence of gestational syphilis was 9.61% (95%CI: 7.14-12.83). We identified the following determining factors (adjusted prevalence ratios): history of sexually transmitted infections (2.3), first sexual intercourse by the age of 15 (2.42), partner having a history of syphilis (5.98), partner using crack/cocaine (6.42) and marijuana and others (3.02), not having a partner (3.07), low income (2.85), history of stillbirth (5.21), beginning prenatal care in the third trimester (3.15), and prenatal care received in a primary healthcare unit (without a Family Health Strategy team) (0.35). Conclusion Individual and prenatal factors were associated with gestational syphilis. To control congenital syphilis, targeted interventions are needed to control syphilis in the adult population including expansion of access to quality prenatal care with identification of risks for syphilis and connection between prevention and treatment actions, implementation of strategies focused on early sexual education, effective establish prenatal care involving both partners, and effective implementation of the National Men’s Health Policy (PNAISH - Política Nacional de Atenção Integral à Saúde dos Homens ).
DOI: 10.6084/m9.figshare.22268840
title: UNIVERSITY-COMPANY INTERACTION FOR TEACHING BASED ON REAL CASES IN ENGINEERING

description: ABSTRACT The content of the Quality Management subject in Production Engineering courses tends to commonly be developed without relating theory with practical activities. Considering this issue, our study investigates the university-company interaction in teaching and learning processes in an Engineering course in a manner that contributes both to the teaching activities at universities and practical activities at companies. Action research was developed from a project that partnered with a company from the automobile segment and a public university to bring real-life problems that are related to the curriculum of the quality management subject in a bachelor’s course in Production Engineering. Different resources and strategies were used: cases and training, which the company provided for in-classroom application; a final project that required student teamwork and constant contact with the company; and expository classes on the theoretical basis of Quality Management. Among the different results that were found, two factors were initially identified as barriers concerning the university-company logic, such as the execution time and the expected results of the project, and, in fact, they were facilitators of this dynamic. Another result was the increasing interest of students concerning the subject’s content as they demonstrated autonomy and responsibility during the process of knowledge creation at the course’s subject. We conclude, then, that the university-company interaction contributes to the creation of an environment that values that student as an active part that is inserted in a challenging scenario that, when enriched with constant feedback on the issues offered, promotes greater engagement and autonomy on students in regards to the learning process.
DOI: 10.6084/m9.figshare.22268840.v1
title: UNIVERSITY-COMPANY INTERACTION FOR TEACHING BASED ON REAL CASES IN ENGINEERING

description: ABSTRACT The content of the Quality Management subject in Production Engineering courses tends to commonly be developed without relating theory with practical activities. Considering this issue, our study investigates the university-company interaction in teaching and learning processes in an Engineering course in a manner that contributes both to the teaching activities at universities and practical activities at companies. Action research was developed from a project that partnered with a company from the automobile segment and a public university to bring real-life problems that are related to the curriculum of the quality management subject in a bachelor’s course in Production Engineering. Different resources and strategies were used: cases and training, which the company provided for in-classroom application; a final project that required student teamwork and constant contact with the company; and expository classes on the theoretical basis of Quality Management. Among the different results that were found, two factors were initially identified as barriers concerning the university-company logic, such as the execution time and the expected results of the project, and, in fact, they were facilitators of this dynamic. Another result was the increasing interest of students concerning the subject’s content as they demonstrated autonomy and responsibility during the process of knowledge creation at the course’s subject. We conclude, then, that the university-company interaction contributes to the creation of an environment that values that student as an active part that is inserted in a challenging scenario that, when enriched with constant feedback on the issues offered, promotes greater engagement and autonomy on students in regards to the learning process.
DOI: 10.6084/m9.figshare.22308733
title: Mariátegui em debate: fantasmas marxistas e horizontes críticos

description: ABSTRACT This essay offers a critical evaluation of the book In the Red Corner: The Marxism of José Carlos Mariátegui, by historian Mike Gonzalez, recently published in the US. Through a foray into this work, which comprises a political biography of the various stages of Mariátegui’s trajectory and thought, it is possible to observe their scope and gaps from a comparison with other works he produced. It also outlines some methodological and political challenges with an eye to future research on Mariátegui.
DOI: 10.6084/m9.figshare.22308733.v1
title: Mariátegui em debate: fantasmas marxistas e horizontes críticos

description: ABSTRACT This essay offers a critical evaluation of the book In the Red Corner: The Marxism of José Carlos Mariátegui, by historian Mike Gonzalez, recently published in the US. Through a foray into this work, which comprises a political biography of the various stages of Mariátegui’s trajectory and thought, it is possible to observe their scope and gaps from a comparison with other works he produced. It also outlines some methodological and political challenges with an eye to future research on Mariátegui.
DOI: 10.6084/m9.figshare.22308735
title: Biochar decreases nutrient leaching in KCl-fertilized Podzols grown with black mucuna

description: ABSTRACT Podzols are highly sandy soils, in which elements, such as potassium, needed by crops, are easily leached. Studies have indicated that biochar can contribute to increasing cation exchange capacity of the soil, which can improve the retention of bases. This study aimed to evaluate the effect of the poultry litter biochar combined or not with increasing doses of KCl, on leaching and soil base content, on the production of green manure biomass, and on the distribution of K in the soil-water-plant system. A 2 × 3 factorial experiment was conducted in randomized blocks with 6 repetitions: without and with biochar (1% v / v, produced from poultry litter) × without K, with 53.65 and 107.30 mg dm-3 of K (as KCl). The experiment was carried out in four steps: Step 1) Soil incubation with the treatments (for 20 days) followed by chemical analysis of the soil; Step 2) First leaching: the containers (made with PVC with 0.30 m high) received the newly incubated soil in the surface layer and soil without treatment in the subsurface layer. The containers received water until saturation plus 50 % of the total pore volume and the leached water was collected and analyzed; Step 3) Cultivation of green manure (Mucuna aterrima) in the containers of Step 2 and harvest within 40 days (evaluation of biomass and K content); Step 4) after the mucuna harvest, the containers were subjected to second leaching. The leaching solution and the soil from the surface and subsurface layers were collected for chemical analysis. Biochar increased the pH, cationic exchange capacity, P, K, Ca, and Mg levels in the newly incubated soil, in the surface and subsurface layer. The increasing doses of KCl proportionally increased biomass production and K accumulation in green manure, and the biochar increased this response and reduces the need for potassium fertilization by 50 %. With biochar, the accumulation of total K in the soil-plant-water system increases by 125 % and, in the soil-plant system, by 145 %. Biochar changes the K ratio in the soil-plant-water system. With biochar, proportionally, the highest accumulated percentage of K occurred mainly in the soil surface and subsurface layer, and did not result in higher percentages of K in the leached water. Biochar produced from poultry litter can be used as a good alternative to improve the chemical properties of Podzols and reduce nutrient losses.