cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7452470.v1
title: Interactional strategies used by university students of Italian as a foreign language (IFL) at basic or advanced levels during symmetric conversations

description: ABSTRACT This paper discusses the development of interactional competence in the light of conversational studies. More specifically, the focus will be on the use of discourse markers in semi-guided conversations with learners of Italian as a foreign language (FL). The study has been carried out with university students enrolled in the first and last year of the Undergraduate Course in Italian at the University of São Paulo in Brazil. The heavy presence of agreement discourse markers combined with the sporadic use of competitive interruptions and metatextual discourse markers indicate that the students are not predisposed to a culture of discussion. This result was found both at beginner and advanced levels. Despite some difficulties in managing communication, expressed through hesitation, vertical constructions and requests for help, the informants do not withdraw from the task at hand and do everything they can to maintain the conversation flow. The variety of discourse markers in learners’ interlanguage is essentially the same at both levels, except for agreement discourse markers, which are more varied at the advanced level, and phatic expressions, which are used exclusively at the beginner level. These data lead us to assume that higher levels of competence do not necessarily result in the use of a wider range of discourse markers. Other factors are likely to have influenced learners’ interlanguage, such as the type of input learners were exposed to, as well as their engagement in tasks which required them to notice specific language forms. From a pedagogical point of view, it emerges that suitable observation and production activities should be used from the beginner levels, as these tasks help raising learners’ consciousness about those conversational mechanisms which regulate discussions among native speakers.
DOI: 10.6084/m9.figshare.7452476.v1
title: Variation in temephos resistance in field populations of Aedes aegypti (Diptera: Culicidae) in the State of Sergipe, Northeast Brazil

description: Abstract INTRODUCTION The organophosphate temephos was first used in Brazil in the 1960s for the control of Aedes aegypti. Because of its extensive and longstanding use worldwide, selection for mosquito populations resistant to the chemical has been observed not only in different regions of Brazil but also in several parts of the world. The objective of this study was to evaluate the susceptibility of Ae. aegypti to the organophosphate temephos, a larvicide used in vector control activities in Sergipe/Northeast Brazil. METHODS This study included mosquito populations from seven municipalities of Sergipe and was carried out from October 2010 to August 2011. Qualitative bioassays of diagnostic dose and dose responses were performed. The resistance ratio was calculated based on lethal concentrations for mosquitoes of the susceptible Rockefeller strain. RESULTS: All populations were classified as resistant to temephos. The resistance ratio ranged from 22.2 to 297.9, the lowest being seen in Aracaju, a coastal area of the state, and the highest in Pinhão, a semi-arid region, 96.6km from Aracaju. CONCLUSIONS: High levels of temephos resistance were observed in the Ae. aegypti populations of Sergipe. The variation between regions indicates that there have been different regimes of insecticide use and also points to the potential of small cities to generate and spread insecticide resistance.
DOI: 10.6084/m9.figshare.7452461
title: Good practices for patient safety in the operating room: nurses' recommendations

description: ABSTRACT Objective: To describe nurses' recommendations for good patient safety practices in the operating room. Method: Quantitative, descriptive and exploratory research developed from an online survey of 220 operating room nurses from different regions of Brazil. The data processing for textual analysis was performed by the software IRAMUTEQ. Results: There were eight recommendations: (1) Involvement of the multiprofessional team and the managers of the institution; (2) Establishment of a patient safety culture; (3) Use of the safe surgery checklist; (4) Improvement of interpersonal communication; (5) Expansion of nurses' performance; (6) Adequate availability of physical, material and human resources; (7) Individual search for professional updating; and (8) Development of continuing education actions. Conclusion: These recommendations can be used as care management strategies by nurses for patient safety in the operating room.
DOI: 10.7284/101810
title: Expendable Probe data collected during research cruise MV1005 using a Sippican MK21 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7452458
title: Bayesian approach, traditional method, and mixed models for multienvironment trials of soybean

description: Abstract: The objective of this work was to compare the Bayesian approach and the frequentist methods to estimate means and genetic parameters in soybean multienvironment trials. Fifty-one soybean lines and four controls were evaluated in a randomized complete block design, in six environments, with three replicates, and soybean grain yield was determined. The half-normal prior and uniform distributions were used in combination with parameters obtained from data of 18 genotypes collected in previous and related experiments. The genotypic values of the genotypes of high- and low-grain yield, clustered by the Bayesian approach, differed from the means obtained by the frequentist inference. Soybean assessed through the Bayesian approach showed genetic parameter values of the mixed model (REML/Blup) close to those of the following variables: mean heritability (h2mg), accuracy of genotype selection (Acgen), coefficient of genetic variation (CVgi%), and coefficient of environmental variation (CVe%). Therefore, the mixed model methodology and the Bayesian approach lead to similar results for genetic parameters in multienvironment trials.
DOI: 10.6084/m9.figshare.7452461.v1
title: Good practices for patient safety in the operating room: nurses' recommendations

description: ABSTRACT Objective: To describe nurses' recommendations for good patient safety practices in the operating room. Method: Quantitative, descriptive and exploratory research developed from an online survey of 220 operating room nurses from different regions of Brazil. The data processing for textual analysis was performed by the software IRAMUTEQ. Results: There were eight recommendations: (1) Involvement of the multiprofessional team and the managers of the institution; (2) Establishment of a patient safety culture; (3) Use of the safe surgery checklist; (4) Improvement of interpersonal communication; (5) Expansion of nurses' performance; (6) Adequate availability of physical, material and human resources; (7) Individual search for professional updating; and (8) Development of continuing education actions. Conclusion: These recommendations can be used as care management strategies by nurses for patient safety in the operating room.
DOI: 10.6084/m9.figshare.7452458.v1
title: Bayesian approach, traditional method, and mixed models for multienvironment trials of soybean

description: Abstract: The objective of this work was to compare the Bayesian approach and the frequentist methods to estimate means and genetic parameters in soybean multienvironment trials. Fifty-one soybean lines and four controls were evaluated in a randomized complete block design, in six environments, with three replicates, and soybean grain yield was determined. The half-normal prior and uniform distributions were used in combination with parameters obtained from data of 18 genotypes collected in previous and related experiments. The genotypic values of the genotypes of high- and low-grain yield, clustered by the Bayesian approach, differed from the means obtained by the frequentist inference. Soybean assessed through the Bayesian approach showed genetic parameter values of the mixed model (REML/Blup) close to those of the following variables: mean heritability (h2mg), accuracy of genotype selection (Acgen), coefficient of genetic variation (CVgi%), and coefficient of environmental variation (CVe%). Therefore, the mixed model methodology and the Bayesian approach lead to similar results for genetic parameters in multienvironment trials.
DOI: 10.6084/m9.figshare.7452455
title: Microstructure, Mechanical and Electrochemical Evaluation of Dissimilar low Ni SS and 304 SS using Different Filler Materials

description: This study investigates the effect of dissimilar metal welding of low nickel stainless steel (SS) and 304 SS employing tungsten inert gas (TIG) welding process by using three different filler materials (316L, 308L and 310 SS). Microstructural, mechanical properties and corrosion behavior in 3.5% NaCl solution was studied. The microstructural investigation revealed the formation of δ-ferrite and γ-austenite in the weld (welded by 316L and 308L filler). The Higher δ-ferrite content was found more in 316L weld zone. Whereas samples welded by 310 SS filler showed the columnar structure in the weld zone. Relatively wider heat affected zone (HAZ) was measured on Cr-Mn SS side as compared to 304 SS side. Impact fracture surface of all the welded samples exhibited dimple appearance. Corrosion studies showed better pitting corrosion resistance in 316L SS welded sample due to the beneficial effect of δ-ferrite and also the addition of molybdenum (Mo). Electrochemical impedance spectroscopy (EIS) revealed higher polarization resistance (Rp) in 316L SS as compared to other fillers. Galvanic current density was found to be higher in Cr-Mn SS as compared to 304 SS when coupled with different welded samples.
DOI: 10.7284/101806
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1005 using a Furuno GP-90D instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/101807
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1005 using a Ashtech ADU2 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7452455.v1
title: Microstructure, Mechanical and Electrochemical Evaluation of Dissimilar low Ni SS and 304 SS using Different Filler Materials

description: This study investigates the effect of dissimilar metal welding of low nickel stainless steel (SS) and 304 SS employing tungsten inert gas (TIG) welding process by using three different filler materials (316L, 308L and 310 SS). Microstructural, mechanical properties and corrosion behavior in 3.5% NaCl solution was studied. The microstructural investigation revealed the formation of δ-ferrite and γ-austenite in the weld (welded by 316L and 308L filler). The Higher δ-ferrite content was found more in 316L weld zone. Whereas samples welded by 310 SS filler showed the columnar structure in the weld zone. Relatively wider heat affected zone (HAZ) was measured on Cr-Mn SS side as compared to 304 SS side. Impact fracture surface of all the welded samples exhibited dimple appearance. Corrosion studies showed better pitting corrosion resistance in 316L SS welded sample due to the beneficial effect of δ-ferrite and also the addition of molybdenum (Mo). Electrochemical impedance spectroscopy (EIS) revealed higher polarization resistance (Rp) in 316L SS as compared to other fillers. Galvanic current density was found to be higher in Cr-Mn SS as compared to 304 SS when coupled with different welded samples.
DOI: 10.6084/m9.figshare.7452440
title: Plasma Treatment of Crosslinked Polyethylene Tubes for Improved Adhesion of Water-based Paints

description: Cold plasmas fed trichloromethane-argon mixtures were used to treat cross-linked polyethylene (PE) to improve the adhesion of water-based paint. The effects of the plasma treatment undertaken at different percentages of CHCl3 in the plasma feed, CCl, were investigated using Infrared Spectroscopy in Diffuse Reflection (DR) mode, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), goniometry for surface contact angle measurements, profilometry for roughness measurements, and paint adhesion tests. All the treatments modify the surfaces by introducing chlorine. Oxygen is present in the bulk and on the surfaces of the treated and untreated material. The treatments do not alter the bulk, but tend to increase the surface roughness and contact angle. When CHCl3 is present in the plasma subsequent paint adhesion is improved from a very poor classification of 4 to an excellent classification of 0 (assessed according to the appropriate Brazilian standards (BS EN ISO 2409:2007 and BS 3900-E6:2007A)). Surface roughness is not increased at low CCl but improved paint adhesion occurs for all CCl &gt; 0. Although the causes of the improved paint adhesion with the plasma treatment are unclear, they may be related to the plasma activation of unsaturated carbon and oxygen functionalities.
DOI: 10.6084/m9.figshare.7452440.v1
title: Plasma Treatment of Crosslinked Polyethylene Tubes for Improved Adhesion of Water-based Paints

description: Cold plasmas fed trichloromethane-argon mixtures were used to treat cross-linked polyethylene (PE) to improve the adhesion of water-based paint. The effects of the plasma treatment undertaken at different percentages of CHCl3 in the plasma feed, CCl, were investigated using Infrared Spectroscopy in Diffuse Reflection (DR) mode, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), goniometry for surface contact angle measurements, profilometry for roughness measurements, and paint adhesion tests. All the treatments modify the surfaces by introducing chlorine. Oxygen is present in the bulk and on the surfaces of the treated and untreated material. The treatments do not alter the bulk, but tend to increase the surface roughness and contact angle. When CHCl3 is present in the plasma subsequent paint adhesion is improved from a very poor classification of 4 to an excellent classification of 0 (assessed according to the appropriate Brazilian standards (BS EN ISO 2409:2007 and BS 3900-E6:2007A)). Surface roughness is not increased at low CCl but improved paint adhesion occurs for all CCl &gt; 0. Although the causes of the improved paint adhesion with the plasma treatment are unclear, they may be related to the plasma activation of unsaturated carbon and oxygen functionalities.
DOI: 10.7284/101808
title: Gravimeter data collected during research cruise MV1005 using a Bell BGM-3 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7452434
title: Analog Radio-over-Fiber Fronthaul by a WDM-PON employing Double RSOA Self-Seeding and Carrier-Reuse Techniques

description: Abstract WDM-PON has been considered a promising solution for future fronthaul links concerning new mobile networks applications. However, in order to avoid inventory problems and reduce operation costs, there is a need for colorless sources, where the same basic optical source can be used regardless of the desired wavelength. Also, the digital RoF scheme, which has been employed so far, might require a bandwidth that is prohibitive even for optical fiber links. In this paper, we propose and numerically investigate a bidirectional colorless WDM-PON fronthaul transporting analog RoF signals as an alternative to meet these demands. All simulations were performed using a framework calibrated with experimental data. For the downstream, we employ a double-cavity self-seeding technique, while the upstream is performed by a cascaded-RSOAs carrier-reuse approach. BER and EVM simulation analysis are presented for various data rates, modulations formats and RF bands ranging from 1 to 5 GHz, demonstrating the feasibility of our proposed topology as a novel fronthaul approach.
DOI: 10.6084/m9.figshare.7452434.v1
title: Analog Radio-over-Fiber Fronthaul by a WDM-PON employing Double RSOA Self-Seeding and Carrier-Reuse Techniques

description: Abstract WDM-PON has been considered a promising solution for future fronthaul links concerning new mobile networks applications. However, in order to avoid inventory problems and reduce operation costs, there is a need for colorless sources, where the same basic optical source can be used regardless of the desired wavelength. Also, the digital RoF scheme, which has been employed so far, might require a bandwidth that is prohibitive even for optical fiber links. In this paper, we propose and numerically investigate a bidirectional colorless WDM-PON fronthaul transporting analog RoF signals as an alternative to meet these demands. All simulations were performed using a framework calibrated with experimental data. For the downstream, we employ a double-cavity self-seeding technique, while the upstream is performed by a cascaded-RSOAs carrier-reuse approach. BER and EVM simulation analysis are presented for various data rates, modulations formats and RF bands ranging from 1 to 5 GHz, demonstrating the feasibility of our proposed topology as a novel fronthaul approach.
DOI: 10.7284/101809
title: Meteorological Station data collected during research cruise MV1005 using a SIO MET-System instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.26030/5jm4-ex66
title: Non-targeted effects of low dose ionizing radiation act via TGF-beta to promote mammary carcinogenesis

description: This is a genome-wide approach to identifying genes persistently induced in the mouse mammary gland by acute whole body low dose ionizing radiation (10cGy), 1 and 4 weeks after exposure. Gene expression that is modified under these parameters were compared between Tgfb1 wild type and heterozygote littermates in order to determine which genes induced or repressed by radiation were mediated via Tgfb1 status. Differential gene expression was analyzed in Tgfb1 heterozygote and wild type littermate 4th mammary glands, after whole body exposure to an acute dose of 10cGy ionizing radiation. Estrus cycle was normalized in all mice two days prior to irradiation by injection with an estrogen and progesterone mixture. It is widely believed that the carcinogenic action of ionizing radiation is due to targeted DNA damage and resulting mutations, but there is also substantial evidence that non-targeted radiation effects alter epithelial phenotype and the stromal microenvironment. Activation of transforming growth factor beta 1 (TGFbeta) is a non-targeted radiation effect that mediates cell fate decisions following DNA damage and regulates microenvironment composition; it could either suppress or promote cancer. Gene expression profiling shown herein demonstrates that low dose radiation (10 cGy) elicits persistent changes in Tgfb1 wild type and heterozygote murine mammary gland that are highly modulated by TGFbeta. We asked if such non-targeted radiation effects contribute to carcinogenesis by using a novel radiation chimera model. Unirradiated Trp53 null mammary epithelium was transplanted to the mammary stroma of mice previously exposed to a single low (10 -100 cGy) radiation dose. By 300 days, 100% of transplants in irradiated hosts at either 10 or 100 cGy had developed Trp53 null breast carcinomas compared to 54% in unirradiated hosts. Tumor growth rate was also increased by high, but not low, dose host irradiation. In contrast, irradiation of Tgfb1 heterozygote mice prior to transplantation failed to decrease tumor latency, or increase growth rate at any dose. Host irradiation significantly reduced the latency of invasive ductal carcinoma compared to spindle cell carcinoma, as well as those tumors negative for smooth muscle actin in wild type but not Tgfb1 heterozygote mice. However, irradiation of either host genotype significantly increased the frequency of estrogen receptor negative tumors. These data demonstrate two concepts critical to understanding radiation risks. First, non-targeted radiation effects can significantly promote the frequency and alter the features of epithelial cancer. Second, radiation-induced TGFbeta activity is a key mechanism of tumor promotion. Keywords: Differential gene expression after low dose irradiation Two genotypes: TGBbeta1 heterozygote and wildtype mouse mammary glands. Two time points post-10cGy-irradiation per genotype (1 week, 4 weeks); control time point was 1 week post-sham-irradiation. Two or three replicates per time point.
DOI: 10.6084/m9.figshare.7452428
title: Colimetric index and virulence genes iss and iutA in Escherichia coli isolates in cellulitis of poultry carcasses under sanitary inspection

description: SUMMARY Current study determines the population of total coliforms and Escherichia coli and identifies iss and iutA virulence genes in Escherichia coli strains isolated from cellulitis in poultry carcasses retrieved from a slaughterhouse. One hundred cellulitis lesions were collected between August 2013 and January 2014. The population of total coliforms and Escherichia coli was verified by Petrifilm™ rapid counting method (AOAC 998.8). Escherichia coli samples were analyzed for iss and iutA genes by Polymerase Chain Reaction (PCR) technique. Total coliforms were present in 96.0% (96/100) of the analyzed samples, with a population between 3.4 and 9.5 log CFU/g. Escherichia coli was present in 82.0% (82/100) of cellulitis samples and the population ranged between &lt;1.0 and 9.0 log CFU/g. The iss gene was found in 89.0% of isolates and the iutA gene in 97.6%. High populations of total coliforms and Escherichiacoli in cellulitis samples indicate that hygienic-sanitary failures may have occurred in the production of broilers. When high prevalence of virulence genes under analysis, characteristic of Avian Pathogenic Escherichia coli (APEC) and possible zoonotic character of the pathotype are taken into account, it is important to highlight the need to adopt Good Manufacturing Practices, Standard Procedures of Operational Hygiene and Hazard Analysis and Critical Control Points in poultry slaughterhouses to ensure the safety of the final product.
DOI: 10.7284/101812
title: Multibeam Echosounder data collected during research cruise MV1005 using a Kongsberg EM122 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7452419
title: From Initial Education to Portuguese L1 Classroom: conceptions about teaching and learning grammar

description: ABSTRACT The goal of this paper is to discuss representations about grammar teaching of Portuguese L1 teachers. It draws on the exploratory study designed to identify the invariants and divergences in self-perceptions about L1 grammar teaching of trainees in different training situations: in-service teachers, pre-service teachers and bachelor’s students. The study focus on student’s and teacher’s acknowledgment of the Portuguese L1 Curriculum (Reis et al. 2009), which conveys a clear paradigm change in Portuguese language education, assuming that grammar teaching is based upon language awareness development. The results show an evident gap between students and teachers in what concerns the familiarity with the Portuguese L1 Curriculum and teaching strategies. However, some puzzling convergent points are the importance attributed to grammar and poor linguistics background. The results analysis draws attention to the relationship between teacher cognition and practice, highlighting fragilities in teacher education and potential conceptual changes that may lead to effective changes in classroom practices.