cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.12056781.v1
title: RATIONAL VOLUMETRIC MODELS: TESTED IN FOREST STANDS OF Acacia mearnsii DE WILD IN SOUTHERN BRAZIL

description: ABSTRACT Tree volumes can alternatively be obtained by ratio estimates, instead of applying linear regression modeling. An interesting question was considered by the authors when comparing the precision of tree volumes obtained by these two statistical approaches, that allowed us to formulate a new hypothesis to conduct this study: “Is it possible to obtain better volume estimates if the form factor is associated only to the exponent of the independent variable that presents higher correlation with the stem volume?”. The research was conducted in commercial stands of black wattle (Acacia mearnsii De Wild) in the municipalities of Cristal, Encruzilhada do Sul and Piratini to answer this question. Forest stands were sampled in a sequence of ages after planting, varying from 1 to 14 years. In each forest stand, trees were felled, and the following characteristics were evaluated: diameter at breast height, total height, and stem scaling. The three age groups were specified according to the behavior of the form factor values. It was proposed three models to be solved by ratio estimates. A comparison of the proposed models with the Schumacher-Hall model, fitted by regression analysis, was done. The model in which the form factor was associated to the exponent of the diameter variable produced the best results, owing to a powerful correlation resulted of this confounding with volume as a dependent variable. Ratio estimates resulted in more accurate tree volumes predominantly, when compared with those obtained by the traditional Schumacher-Hall model fitted through regression analysis. Therefore, we recommend the application of model 2 fitted by ratio estimate.
DOI: 10.6084/m9.figshare.12056784.v1
title: Thermal properties of polypropylene and high modulus polyethylene fibers reinforced concretes

description: Abstract Concrete is one of the materials most used by the construction industry. Reinforcing this material with fibers is a technique used to improve its mechanical properties. Steel and polymer fibers are the main types used in this application and there are few studies about the influence of polymer fibers on the thermal properties of concrete. In order to analyze this influence, the present work carried out thermal conductivity, thermal expansion, and compressive strength after exposure to a temperature of 200 °C on specimens made of concrete with addition of polypropylene (PP) fibers and concrete with addition of high modulus polyethylene (HMPE). It was also conducted thermogravimetric analysis (TGA) on PP and HMPE fibers. The results show that the addition of polymer fibers alters the thermal properties of the concrete, reducing its thermal expansion, for example.
DOI: 10.6084/m9.figshare.12056778.v1
title: Increased neutrophil lymphocyte ratio and platelet lymphocyte ratio in malignant parotid tumors

description: Abstract Introduction Recently it has been reported that a high preoperative neutrophil-lymphocyte ratio and platelet-lymphocyte ratio may be related to increased recurrence risk, tumor aggressiveness, and worsened prognosis in various malignancies. Objective The objective of this research is to explore whether neutrophil-lymphocyte ratio and platelet-lymphocyte ratio in parotid tumors may or may not be used as a cancer marker. Methods This retrospective research has been conducted on a total of 228 patients consisting of 83 healthy persons and 145 patients with a mass in the parotid gland, who applied to a tertiary referral center and underwent surgery. Patients have been divided into two groups by their histopathological findings as malignant or benign parotid tumor. A third group consisting of healthy people has been defined as the control group. Also the malignant parotid tumor group has been divided into two subgroups as early stage and advanced stage. The groups have been compared in terms of neutrophil-lymphocyte ratio, platelet-lymphocyte ratio and other laboratory data. Results The average neutrophil-lymphocyte ratio values of malignant parotid tumor, benign parotid tumor, healthy control groups were 2.51, 2.01, 1.79 respectively and the difference was statistically significant (p &lt; 0.001). There was no significant difference between advanced stage and early stage parotid tumor groups in terms of average neutrophil-lymphocyte ratio value (p = 0.782). In dual comparisons, the platelet-lymphocyte ratio value of patients in the malignant group was found out to be statistically significantly higher than that of benign and control groups (p &lt; 0.001 and p = 0.001 respectively). Conclusion To the best of our knowledge our research is the first in the medical literature comparing neutrophil-lymphocyte ratio and platelet-lymphocyte ratio in patients with parotid tumor. neutrophil-lymphocyte ratio and platelet-lymphocyte ratio can serve as cost-effective, repeatable, easily accessible, and helpful inflammatory markers in order to distinguish patients with malignant parotid tumor from healthy people.
DOI: 10.6084/m9.figshare.12056766
title: PUBLIC SUPPORT FOR TIMBER HOUSING PRODUCTION IN BRAZIL

description: ABSTRACT Using face-to-face interviews and semi-structured questionnaires with timber housing developers, this study assed the perceptions of respective industries about government stimuli and public policies towards timber construction in Brazil. Four questions were developed under qualitative aspects, which were percentually measured to enable a response comparative. Thereby, 107 of 210 companies were evaluated here. Under statistical view, this sampling revealed a margin of error acceptable and next to the ideal condition. Results suggest that current policies have been apparently restrictive. Timber house producers still are dependant on strategies for whole national segments, whose scope does not promote both local cleaner industries and those focused on sustainable solutions such as from this studied sector. Tax cuts and exemptions for greener products could be an efficient alternative to incentive this production sector, and promote these sustainable timber houses. The creation of assertive public policies could attract more investors and developers to expand this industry and other forest-timber sectors and, consequently, contribute to reduce the housing shortage in Brazil.
DOI: 10.6084/m9.figshare.12056766.v1
title: PUBLIC SUPPORT FOR TIMBER HOUSING PRODUCTION IN BRAZIL

description: ABSTRACT Using face-to-face interviews and semi-structured questionnaires with timber housing developers, this study assed the perceptions of respective industries about government stimuli and public policies towards timber construction in Brazil. Four questions were developed under qualitative aspects, which were percentually measured to enable a response comparative. Thereby, 107 of 210 companies were evaluated here. Under statistical view, this sampling revealed a margin of error acceptable and next to the ideal condition. Results suggest that current policies have been apparently restrictive. Timber house producers still are dependant on strategies for whole national segments, whose scope does not promote both local cleaner industries and those focused on sustainable solutions such as from this studied sector. Tax cuts and exemptions for greener products could be an efficient alternative to incentive this production sector, and promote these sustainable timber houses. The creation of assertive public policies could attract more investors and developers to expand this industry and other forest-timber sectors and, consequently, contribute to reduce the housing shortage in Brazil.
DOI: 10.6084/m9.figshare.12056760
title: Tomato production in hydroponic system using different agrofilms as greenhouse cover

description: ABSTRACT Protected cultivation has increased over the years. More studies on the benefits of using photoselective agrofilms are necessary. The choice of material to cover the greenhouse is a decisive factor for crop development and production. The aim of this study was to evaluate the effect of diffuser and blue-colored agrofilms on the production of different tomato cultivars of indeterminate growth habit under NFT hydroponic system. A completely randomized design in a 2x3 factorial scheme (two environments and three cultivars) was used: two agrofilm types (blue and diffuser) and 3 cultivars (Monterrey, Arendell and Totalle). Each plot consisted of 30 plants per treatment, with four replicates. Commercial tomato seedlings of indeterminate growth habit grafted on rootstock cultivar (Shincheonggang) were used. During the experiment, the electrical conductivity, intensity of radiation inside the greenhouse, gas exchange, soluble solids, lycopene content, pH and fruit production were evaluated. We concluded that the amount of radiation transmitted through the diffuser favors an increase of about 18% in gas exchange, 12% in lycopene content and 9.4% in tomato crop production.
DOI: 10.6084/m9.figshare.12056763
title: Performance of advanced potato genotypes in organic and conventional production systems

description: ABSTRACT Potato is responsive to intensive agricultural input use; however, it can be produced in less intensive production systems (such as the organic system) by using appropriate production techniques and genotypes adapted to this system. This study aimed to evaluate the performance of advanced potato genotypes for tuber yield under conventional and organic production systems, in order to select potential genotypes to become new cultivars adapted to these systems. Fifteen advanced potato clones and two controls were evaluated under organic and conventional production systems, in 2016 and 2017, in Brasília-DF, Brazil. The experimental design was randomized blocks with three replicates and plots composed of two rows with 10 plants each, spaced 0.35 m between plants and 0.80 m between rows. Total (mass) and marketable (mass and number of tubers) productivities were evaluated. Variance analysis showed significant differences among genotypes for all traits. Despite the lower average tuber yield in the organic system, selecting genotypes with high potential productivity was possible in this system, such as F158-08-01 and F158-08-02, showing high marketable tuber yield, with values equivalent to the conventional system. Clones F102-08-04, F13-09-07, F-18-09-03, F-183-08-01, F-21-09-07, F31-08-05, F63-10-07 and F97-07-03 also outperformed the control cultivars in organic system. For conventional system, F158-08-01, F158-08-02 and F183-08-01 were superior, and F18-09-03, F21-09-07, F63-10-07, F97-07-03, PCDINV10 and PCDSE090 showed performance similar or superior to the most productive control (cultivar Asterix). Genotypes F158-08-01 and F158-08-02 were superior in both conventional and organic systems, with potential to become new cultivars recommended for both production systems.
DOI: 10.6084/m9.figshare.12056751
title: “Agribusiness is everything”: simulations in the agribusiness legitimating apparatus

description: Abstract This article analyzes simulations concerning the proposition that “agribusiness is everything”, a prominent strategy for legitimating agribusiness agents. These simulations occur through operations in the public sphere by which parts are used to refer to the whole, or, more specifically, by these agents being put for the broad perimeter of agrifood functions covered in the concept of agribusiness. It is for this reason that such operations function better when the analytical and political dimensions of the agribusiness field remain indistinct. By contrasting the concept, on the one hand, with the set of agribusiness political actors, on the other hand, the paper analyzes the mobilization and the effects of these simulations in three empirical cases involving family agriculture, macroeconomic statistics, and media campaigns. The sources are 35 interviews with actors related to agribusiness, books with their justifications, documents with their claims, propaganda, journalistic materials and presidential speeches.
DOI: 10.6084/m9.figshare.12056757
title: Initial Difficulties in Learning the Physical Exam According to the Student’s Perception

description: Abstract: Introduction: During Medical School, the student faces several situations that can generate insecurity and anxiety, and among them, the one that stands out is the first practical class with patients, which traditionally occur during the Medical Semiology course. Performing the first physical examination in a real patient is a potential stress-inducing situation for those who take their first steps towards building the necessary skills for a medical career. The way one deals with the stress generated by these situations is quite individual and is related to several factors inherent to the student and to the teaching model adopted. The present study aims to identify the main adversities reported by students in their initiation to physical examination. Method: An exploratory study with a qualitative approach was carried out during the activities of the Basic Horizontal Module 4 (MHB4), which is part of the curriculum of the fourth semester of the Medical School at Federal University of Paraíba. A sample of 35 students was divided into 6 focal groups. Data collection was performed in the eighth week of the semester and occurred simultaneously in all groups. The discussion began with the guiding question “What are the difficulties faced during the physical examination of the patient?”. The student’s speeches were recorded and then transcripted in full and the material was submitted to content analysis using the method recommended by Bardin¹. Results: The students’ statements were listed into 5 categories: insecurity and inexperience; patient’s submission; feeling of bothering the patient; gender targeting; selection of the patient for convenience. Based on this analysis it was possible to observe that the performance of the first physical examination is an event that causes much emotional stress to students. Issues such as insecurity, inexperience and the feeling of using the patient as an object are mentioned as factors that causes discomfort to students and hinder their learning process. Conclusions: The students’ perceptions are those of insecurity, inexperience and invasion of the patient’s privacy, who is in a passive situation. In this context, the process of facing the difficulties takes on bigger and unrealistic proportions in the learning process of physical examination.
DOI: 10.6084/m9.figshare.12056760.v1
title: Tomato production in hydroponic system using different agrofilms as greenhouse cover

description: ABSTRACT Protected cultivation has increased over the years. More studies on the benefits of using photoselective agrofilms are necessary. The choice of material to cover the greenhouse is a decisive factor for crop development and production. The aim of this study was to evaluate the effect of diffuser and blue-colored agrofilms on the production of different tomato cultivars of indeterminate growth habit under NFT hydroponic system. A completely randomized design in a 2x3 factorial scheme (two environments and three cultivars) was used: two agrofilm types (blue and diffuser) and 3 cultivars (Monterrey, Arendell and Totalle). Each plot consisted of 30 plants per treatment, with four replicates. Commercial tomato seedlings of indeterminate growth habit grafted on rootstock cultivar (Shincheonggang) were used. During the experiment, the electrical conductivity, intensity of radiation inside the greenhouse, gas exchange, soluble solids, lycopene content, pH and fruit production were evaluated. We concluded that the amount of radiation transmitted through the diffuser favors an increase of about 18% in gas exchange, 12% in lycopene content and 9.4% in tomato crop production.
DOI: 10.6084/m9.figshare.12056757.v1
title: Initial Difficulties in Learning the Physical Exam According to the Student’s Perception

description: Abstract: Introduction: During Medical School, the student faces several situations that can generate insecurity and anxiety, and among them, the one that stands out is the first practical class with patients, which traditionally occur during the Medical Semiology course. Performing the first physical examination in a real patient is a potential stress-inducing situation for those who take their first steps towards building the necessary skills for a medical career. The way one deals with the stress generated by these situations is quite individual and is related to several factors inherent to the student and to the teaching model adopted. The present study aims to identify the main adversities reported by students in their initiation to physical examination. Method: An exploratory study with a qualitative approach was carried out during the activities of the Basic Horizontal Module 4 (MHB4), which is part of the curriculum of the fourth semester of the Medical School at Federal University of Paraíba. A sample of 35 students was divided into 6 focal groups. Data collection was performed in the eighth week of the semester and occurred simultaneously in all groups. The discussion began with the guiding question “What are the difficulties faced during the physical examination of the patient?”. The student’s speeches were recorded and then transcripted in full and the material was submitted to content analysis using the method recommended by Bardin¹. Results: The students’ statements were listed into 5 categories: insecurity and inexperience; patient’s submission; feeling of bothering the patient; gender targeting; selection of the patient for convenience. Based on this analysis it was possible to observe that the performance of the first physical examination is an event that causes much emotional stress to students. Issues such as insecurity, inexperience and the feeling of using the patient as an object are mentioned as factors that causes discomfort to students and hinder their learning process. Conclusions: The students’ perceptions are those of insecurity, inexperience and invasion of the patient’s privacy, who is in a passive situation. In this context, the process of facing the difficulties takes on bigger and unrealistic proportions in the learning process of physical examination.
DOI: 10.6084/m9.figshare.12056763.v1
title: Performance of advanced potato genotypes in organic and conventional production systems

description: ABSTRACT Potato is responsive to intensive agricultural input use; however, it can be produced in less intensive production systems (such as the organic system) by using appropriate production techniques and genotypes adapted to this system. This study aimed to evaluate the performance of advanced potato genotypes for tuber yield under conventional and organic production systems, in order to select potential genotypes to become new cultivars adapted to these systems. Fifteen advanced potato clones and two controls were evaluated under organic and conventional production systems, in 2016 and 2017, in Brasília-DF, Brazil. The experimental design was randomized blocks with three replicates and plots composed of two rows with 10 plants each, spaced 0.35 m between plants and 0.80 m between rows. Total (mass) and marketable (mass and number of tubers) productivities were evaluated. Variance analysis showed significant differences among genotypes for all traits. Despite the lower average tuber yield in the organic system, selecting genotypes with high potential productivity was possible in this system, such as F158-08-01 and F158-08-02, showing high marketable tuber yield, with values equivalent to the conventional system. Clones F102-08-04, F13-09-07, F-18-09-03, F-183-08-01, F-21-09-07, F31-08-05, F63-10-07 and F97-07-03 also outperformed the control cultivars in organic system. For conventional system, F158-08-01, F158-08-02 and F183-08-01 were superior, and F18-09-03, F21-09-07, F63-10-07, F97-07-03, PCDINV10 and PCDSE090 showed performance similar or superior to the most productive control (cultivar Asterix). Genotypes F158-08-01 and F158-08-02 were superior in both conventional and organic systems, with potential to become new cultivars recommended for both production systems.
DOI: 10.6084/m9.figshare.12056745
title: Medical Humanities and their Place in the Curriculum: Opinions of Cobem/2017 Participants

description: Abstract: There is a growing perception that medical training with an exclusive focus on biological disciplines is insufficient for the understanding of the complexity and individuality of human illness. We start from the assumption that medical humanities make an important contribution to medical education, through references to expanded understanding of the health-disease process and to the organization of health care, that is, directed at humanization. This work sought to assess the perceptions of a group of students, teachers and coordinators of a medical course on the integration of the disciplines of medical humanities in the curricula of medical courses. The descriptive, quantitative and cross-sectional research consisted of the application of a structured questionnaire to a group of participants of the 55th Brazilian Congress of Medical Education (COBEM, Porto Alegre, RS, October/2017), considered to be a convenience sample. The event participants were approached during the intervals of the conferences and invited to answer a questionnaire that sought opinions on the insertion and the integration of the disciplines of the human sciences into the curricula of the medical courses. The questionnaire also contained the sample’s characterization of the region of origin, the legal scope of the institution (private, public or confessional) and the role of the respondent (teacher, student or coordinator). A total of 234 (two hundred and thirty-four) individuals answered the questionnaires, which were submitted to descriptive statistical analysis. The analysis showed that the medical humanities are perceived as important for the medical formation, but there is no consensus about their being crucial for the acquisition of humanistic skills. There are interdisciplinary curricular experiences; however, not all of them perceive the subjects of humanities at different times in the medical curriculum or articulated with other disciplines. While interdisciplinary experiences are perceived more easily, the cross-sectional articulation of humanistic topics appears to a lesser degree. According to the answers, the disciplines remain concentrated only in the initial periods; however, the perception of sufficiency discloses quite divided opinions. There is also a slight difference in opinion about the articulation of the humanities in the basic and advanced cycles. The lower perception of integration of the humanities appears in practices that integrate teaching-service-community.
DOI: 10.6084/m9.figshare.12056751.v1
title: “Agribusiness is everything”: simulations in the agribusiness legitimating apparatus

description: Abstract This article analyzes simulations concerning the proposition that “agribusiness is everything”, a prominent strategy for legitimating agribusiness agents. These simulations occur through operations in the public sphere by which parts are used to refer to the whole, or, more specifically, by these agents being put for the broad perimeter of agrifood functions covered in the concept of agribusiness. It is for this reason that such operations function better when the analytical and political dimensions of the agribusiness field remain indistinct. By contrasting the concept, on the one hand, with the set of agribusiness political actors, on the other hand, the paper analyzes the mobilization and the effects of these simulations in three empirical cases involving family agriculture, macroeconomic statistics, and media campaigns. The sources are 35 interviews with actors related to agribusiness, books with their justifications, documents with their claims, propaganda, journalistic materials and presidential speeches.