cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14305020.v1
title: Morphological and physiological variation in Toona ciliata under water and salinity stress

description: ABSTRACT: The objective of this paper was to test the effects of water deficit, saturation and salinity in individuals of Toona ciliata. Seven treatments were tested: the control group, the complete suspension of irrigation, the permanent saturation of the pot soil and four doses of NaCl (50, 100, 200 and 400 µmol). The experimental design was completely randomized, with 8 repetitions in each treatment. Physiologic evaluations were carried out during the experiment, and morphologic evaluations at the end. The plants were responsive to the applied stresses comparatively to the control group. Reductions were observed in morphological and physiological variables in all treatments under stress. All individuals under stress recovered slightly in the end of the experiment, and began to sprout again, representing a probable adaptation to the conditions.
DOI: 10.6084/m9.figshare.14305019.v1
title: Health-related factors on tobacco consumption in Turkey

description: ABSTRACT: In this study, we analyzed the role of individuals’ health-related factors along with socio-demographic and economic characteristics on both the likelihood of tobacco consumption and quantity demanded levels using two competitive econometric methods: double hurdle model versus hyperbolic sine double-hurdle model. Statistical tests confirmed the dependency errors between the prevalence rate of smoking and the consumption level, whilst the inverse-hyperbolic sine double-hurdle model data fits best in describing the normalization of the data and the two data generating processes: the probability and consumption levels of cigarettes. Also, the variance-covariance of the selected model as a function of additional exogenous variables are confirmed, while the error terms between the likelihood to smoke and the consumption levels are positive and statistically significant, indicating that holding control variables fixed, the uncontrolled variables out of the system that increase the prevalence rate of smoking also boost the consumption level, or vice versa. Many individual disease variables are significant in both equations, breaking new grounds in literature for identifying how both the prevalence rate of smoking and amount have shaped.
DOI: 10.6084/m9.figshare.14305017.v1
title: How different soil moisture levels affect the microbial activity

description: ABSTRACT: The lowland soils are characterized by high susceptibility to water saturation. This anaerobic condition is usually reported in paddy fields and alters the decomposition process of soil organic compounds. The aim of this study was to evaluate the soil microbial and enzymatic activity of a lowland soil at different soil moisture contents. A poorly drained Albaqualf cultivated with irrigated rice was used to evaluate microbial and enzymatic activity in treatments with different levels of soil moisture, being: i) 60% of field capacity (FC) (60�); ii) 100% of FC (100�); iii) flooded soil with a 2 cm water layer above soil surface, and iv) soil kept at 60� with late flood after 29 days the incubation. The greater soil microbial activity was observed in the 100� treatment, being 41% greater than 60� treatment and only 2% higher than flooded treatment. The enzymatic activity data by fluorescein diacetate (FDA) hydrolysis corroborated the higher CO2 release in treatments with higher soil moisture content. Differently from the results reported, the main methodologies to evaluate microbial activity still recommend maintenance of the soil with a moisture content close to 60% of the FC. However, in lowland soil with history of frequent paddy fields, the maintenance of moisture close to 60% of the FC can limit the microbial activity. The soil respiration technique can be used to evaluate the microbial activity in flooded soil conditions. However, further studies should be conducted to understand the effect of the cultivation history on the microbial community of these environments.
DOI: 10.6084/m9.figshare.14305013.v1
title: Fuzzy modeling of volumetric efficiency and specific energy consumption in agricultural screw conveyors

description: ABSTRACT: Vertical screw conveyors have low energy efficiency but this is generally acceptable within the normally low power range. Previously, a fuzzy logic approach was used to model volumetric efficiency and specific energy consumption in screw conveyors. The performance of conveyors in different working conditions and the geometry of the screw were studied. It was reported that increasing the screw speed, pitch, and loading angle also increases specific energy consumption. In this study, an intelligent fuzzy model based on the Mamdani approach was developed to predict volumetric efficiency and specific energy consumption. The model inputs included the slope, speed, and pitch of screw conveyors. The fuzzy model consists of 27 rules in which three parameters, namely the goodness of fit (η), relative error (ε), and coefficient of correlation (R), are used to evaluate the model. The goodness of fit, relative error, and coefficient of correlation values were 0.986, 5.28%, and 0.99, respectively, for volumetric efficiency and 0.987, 4.93%, and 0.99, respectively, for specific energy consumption. Results revealed that the developed model is capable of predicting volumetric efficiency and specific energy consumption in barley transport under different working conditions with high accuracy.
DOI: 10.6084/m9.figshare.14305010.v1
title: Ecotoxicity test as an aid in the determination of copper guideline values in soils

description: ABSTRACT: The process of identifying a contaminated area involves a preliminary assessment consisting of chemical analysis and comparison with guideline values. In Brazil, these values are included in the CONAMA Resolution no. 420/2009, based on chemical analysis and phytotoxicity. The objective of this research was to evaluate the ecotoxicity of copper in two natural soils in the state of Rio de Janeiro, a Haplic Planosol (sandy) and a Red-Yellow Argisol (medium texture), to verify if the values established by the legislation offer protection to the soil fauna. Lethality and reproduction tests were performed with Eisenia andrei worms and Folsomia candida springtails. Results indicated copper values in Planosol as LC50 435 mg kg 1 and EC50 29 mg kg 1 for E. Andrei and LC10 137 mg kg 1 and EC50 117 mg kg 1 for F. candida. In Argisol, these results were LC50 690 mg kg 1 and EC50 61 mg kg 1 for E. andrei, and LC10 42 mg kg 1 and EC50 138 mg kg 1 for F. candida. Values reported are lower than the research value (200 mg kg-1) established by the CONAMA resolution 420/09, indicating that concentrations lower than the limit values may affect these organisms, depending on the type of soil. Worms were more sensitive than springtails to copper contamination, and sandy soil was more susceptible to ecotoxicity due to copper contamination, probably due to the greater bioavailability of the metal. Results of such ecotoxicity tests should be considered in the development of soil guideline values.
DOI: 10.6084/m9.figshare.14305008.v1
title: Seeding furrow opening mechanisms and the soybean planting in lowland areas

description: ABSTRACT: The objective of this research was to evaluate the effect of seeder furrow opening mechanisms on soil physical characteristics, plant growth, and soybean yield in lowland areas with the presence of compacted layer near the surface. An experiment was conducted in the lowland experimental area of the Federal University of Santa Maria-RS, Brazil, during the 2015/16 and 2016/17 growing season. The experimental design was a randomized block with five replications and four treatments: Planter using shank (S) at 0.23 m depth; S at 0.13 m; Planter using double disk at 0.07 m depth and Raised-bed + S at 0.12 m depth. The use of S at 0.23 m depth allowed reduction of penetration resistance and increase of soil macroporosity in the layers 0-0.1 and 0.1-0.2 m depth in the seeding row. Sowing with S at 0.23 m depth and Raised-bed + S at 0.12 m depth allowed a better development of soybean plants in compacted irrigated rice area (higher nodulation, leaf area index and root growth), as well as higher grain yield.
DOI: 10.6084/m9.figshare.14305007.v1
title: Intergenerational financial transfers and physical health of old people in rural China: evidence from CHARLS data

description: ABSTRACT: With the reduction of intergenerational temporal transfers, financial transfers from adult offspring to their elderly parents are prevailing in rural China. Although much has been done, little is known about the association between the expansion of intergenerational transfers and rural old people’s physical health in China. The purpose of this paper was to examine the effect of intergenerational financial transfers on the elders’ physical health in rural China. Using data collected from China Health and Retirement Longitudinal Study (CHARLS), panel data fixed effect model and threshold model are employed to estimate the impact of intergenerational financial transfers on the old people’s physical health in rural areas. Results showed that; although, the intergenerational financial transfers have a positive effect on the old people’s physical health, no linear relationship exists between them. Intergenerational financial transfers are clearly less effective for low-income old people’s physical health than those of middle-income, while the effect on high-income old people’s health is the most insignificant. Studies concerning the effect of intergenerational financial transfers on the elders’ health in developing countries remain limited. Findings of this paper provided great insights into how intergenerational transfers, such as intergenerational financial transfers, may affect the well-beings of old residents in rural areas. Additionally, this study can offer inspiration to policy makers regarding what measures they should take to enhance rural old residents’ well-beings.
DOI: 10.6084/m9.figshare.14305004.v1
title: From the relationship with knowledge to identities of physical education: narratives of students in the High School

description: Abstract It aims to understand the relationships that students establish with the knowledge in the classes of physical education and its implications for the constitution of the identities of this curricular component. It analyzes the autobiographical narratives of students of the 3rd year of High School on the different ways of appropriating their schooling process with physical education. Uses oral and imagery narratives of students as sources. The results showed that the relationship with the knowledge and the identities of physical education produced are strained by the school logic and the experiences, which results in the loss of their interest in the classes during the schooling process.
DOI: 10.6084/m9.figshare.14305001.v1
title: The use of cognitive instruments for research in early childhood education: constraints and possibilities in the Brazilian context

description: Abstract This paper discusses the adaptation of the iPIPS assessment for use in research with Brazilian children between the ages of four and seven. It debates the importance of having a baseline measure to assess early childhood education policy as well as the advantages of collecting high-quality information about children’s development. Not knowing how children are progressing could harm disadvantaged children and increase school inequality. The data used in the analysis was based on the pre-test of the iPIPS 2016 for mathematics and language in a total of 560 cases collected in three Brazilian cities. The preliminary analyses indicate that the items of both tests present adequate behavior, suggesting the theoretical adequacy of the items and a good adaptation and application protocol.
DOI: 10.6084/m9.figshare.14305000.v1
title: German primers from the Rotermund publishing house (1927-1933): gender representations in rural work

description: Abstract This academic paper aims to analyze gender representation, especially concerning the work roles attributed to men and women presented in the illustrations of the guidelines Mein Rechenbuch (My calculus book) and Fibel für Deutsche Schulen in Brasilien (Guidelines for German schools in Brazil), both produced by the publishing house Rotermund, which was linked to the Rio-Grandense Synod. Elaborated in German language, these guidelines sought to attend Synod schools linked to Lutheran churches, which worked alongside the colonies of German-Pomeranian immigrants in southern Rio Grande do Sul. In the course of this study, the aim was to identify possible social directions transmitted through the work organization illustrated in the guidelines. In this context, it was observed that social relations represented are ethnic and cultural constructions historically established, integrating a process that involves school and religious institutions.
DOI: 10.6084/m9.figshare.14304998.v1
title: The option for schooling in university secondary schools in Argentina: school choice between glass ceilings and social closure

description: Abstract This article revisit the debates about school choice focusing on a group of university high schools in the capital of the Province of Buenos Aires, Argentina. From exploring the sociocultural composition of school fees, we are known to families who attend these prestigious schools and revise discussions on school choice regarding processes of social closure that persist beyond they are state high schools that have a public and open lottery as a method of admission. The methodological approach started from a multiple case study involving the combination of quantitative and qualitative data collection methodologies. Between 2012 and 2016 they were made observations, interviewed in depth 13 central actors to the institutions, made 67 structured interviews to teachers selected randomly and recovered a corpus composed of six institutional documents included information on sociodemographic chips of the students. It is concluded that it is the middle sectors that colonize this fragment of schools.
DOI: 10.6084/m9.figshare.14304995.v1
title: Interferences in the class: teachers’ dynamic and perceptions

description: Abstract Instances of school institutions directly intervene on the public schools (state and municipal) in the city of São Paulo. There is a “dynamic of interferences”: a set of frequent and direct interventions in the class, normally connected to the enactment of educational policies. This accumulation of projects in the schools lead to constant interruptions in teachers’ work. We have researched its consequences on teachers and school education, based on the analysis of official texts and teachers’ statements. We have found that, though such policies are supported by a discourse of quality in education, according to the teachers the dynamic of interferences hinders teachers’ work and, possibly, school education.
DOI: 10.6084/m9.figshare.14304993.v1
title: Computational thinking as a heuristic endeavour: students’ solutions of coding problems

description: Abstract In this paper we investigate students’ computational thinking in mathematics education. Specifically, through the analysis of teaching experiments conducted as qualitative case studies, we explore aspects of constructionism and problem solving. In different learning scenarios, pairs of elementary school and undergraduate students explored coding puzzles in order to complete a posed computational-mathematical task. From a constructionist point of view, the results indicate that the learning experience involved a problem solving spiral of description, execution, reflection and debugging. In the case of the experience of the undergraduate students, we also identified specific characteristics of computational thinking related to heuristic processes such as exploration, planning, analysis, and verification.
DOI: 10.6084/m9.figshare.14304991.v1
title: The Elos Program for drug abuse prevention: repercussions in the daily life of schools

description: Abstract We discuss repercussions of the implementation of the Elos Program for the prevention of drug abuse (Ministério da Saúde, 2013-2017) regarding the alteration of processes of subjection, isolation and disrespect present in school daily life. In three schools in the metropolitan area of São Paulo we followed the implementation of the Program – a partnership between teachers and health professionals to organize a game between teams of students. Five focus groups and nine individual interviews were conducted with teachers, health professionals, pedagogical coordinators, and school administrators; and 20 group meetings with eight to ten students from six to eight years of age each group. The qualitative analysis gave visibility to changes in the institutional relations intensified by group practices, permanent renegotiation, and by processes of implication of oneself – teachers and students – established by the practice of the game, with effects on the amplification of the power to learn.
DOI: 10.6084/m9.figshare.14304989.v1
title: The trajectory of political science in Brazil and its autonomization: an analysis from the postgraduate programs

description: Abstract The article traces the trajectory of institutionalization and autonomization of Political Science within the Brazilian academic field and, to this end, takes the post-graduation as object of study and as a fundamental space to understand the processes of building of this area throughout the twentieth century. Its more general objective is to understand the conditions of possibility of the construction of an academic space specific to Political Science in Brazil, a task developed from a quanti-qualitative approach marked by the revision and dialogue with the literature and by the work with data about the post graduate programs. The text ends by pointing out the correlation between the classical aspects discussed when it comes to objectifying Political Science (such as: relative "backwardness", relation with Sociology or even the financing of international agencies) and the master's and doctoral courses that form this area. It contributes to the debate about the role of postgraduate in the construction of the relative autonomy of Political Science in the Brazilian academic universe.
DOI: 10.6084/m9.figshare.14304986.v1
title: “Teaching those who do not want to learn”: one of the challenges of Didactics and Teacher Training

description: Abstract This article builds on the expression “teaching those who do not want to learn” that is consolidated in the perceptions of high school teachers as one of the greatest challenges of the teaching-learning process in public schools. The data is part of a study on teaching for young people from peripherical regions. The objectives are to see the reality of these “students who do not want to learn”; identify how teachers can overcome this reality and promote meanings for the school; to recognize new dimensions of teaching practice to be incorporated by the teaching of Didactics and Teacher training. The argument is based on Didactics and Sociology studies. It is argued that a new teaching professionalty is marked by the relational and motivational dimensions of work, in which the teacher is a “relationship professional” and a “builder of meaning”.
DOI: 10.6084/m9.figshare.14304985.v1
title: School flow correction policy in Pernambuco: an analysis of the Travessia program

description: Abstract We analyze, in the present text, the perception of students from the Travessia program about the possible qualitative repercussions of this public policy in the process of coping with the distortion of school age/grade in the teaching network of Pernambuco. The analysis of the data allows us to verify that the program was effective in the process of regularizing the school flow, registering a reduction in the index of age/school grade distortion in High School from 61% in 2007 to 36.4% in 2013. On the other hand, based on the ccontent analysis framework, it was possible to infer from the data collected through semi-structured interviews that have limitations in terms of qualitative results, since the subjects of the research recognize the low impact of the program, In terms of the sequence of studies, the insertion in the world of formal work and the practice of citizen practices in the social context in which individuals live.
DOI: 10.6084/m9.figshare.14304982.v1
title: Access of indigenous peoples to formal education: science education: a challenge, a reality

description: Abstract Faced with the refuted hypothesis of the reduction and the extinction of indigenous peoples in Brazil, new perspectives and demands have emerged. This research aimed to investigate the access of indigenous peoples to formal education, especially in relation to science education in the state of Rio Grande do Sul. The indigenous schools of the Kaingáng and the Guarani ethnic groups were contextualized from the perspective of spatialization considering the Mesoregions, the municipalities, and the respective Regional Education Coordinators. The aspects investigated include number of enrollments (from 2011 to 2015), number of science teachers and their respective ethnicities, and the contribution of the school libraries. Thus, it is understood that there is a great reflection and consequent application of financial resources, aiming at the inclusion of indigenous peoples. However, demands have been identified, such as the adoption of principles of interculturality and bilingualism, the lack of adequate libraries and collections, the lack of science teachers, and the lack of indigenous teachers.
DOI: 10.6084/m9.figshare.14304980.v1
title: Considerations on Brazilian Teacher Training Indicators

description: Abstract In this paper, we analyze the data from Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira/Ministério da Educação on teacher training in Brazil. The data selected for analysis were taken from the synopses provided between 2001 and 2015 and comprise the number of available places, admissions and graduates by undergraduate courses. From the data analysis, we can observe that the number of places available at universities has increased during the period, but teacher-training courses still present low demand and many unfilled places. Physics courses have the lowest number of graduates compared to other courses analyzed. This reality may be influenced by many factors such as high evasion rate and low demand for teacher-training courses.
DOI: 10.6084/m9.figshare.14304979.v1
title: Knowledge production on dance and physical education in Brazil: analysis of scientific articles

description: Abstract The aim of this study is to analyze the productions derived from scientific articles about dance as knowledge treated by the area of physical education, with the intention of identify its main themes of study. It is a research of quantitative approach, of the documentary type, that takes as a source the productions on dance and physical education made available in the national newspapers. Identified that the dance possesses diverse possibilities of themes of studies, but is in the education that she gains greater prominence, followed by topics that discuss about dance with possibility of movement, motor performance and physical activity.