bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sistemas didáticos desenvolvimentais: precisões conceituais, metodológicas e tipológicas
Authors: Puentes Roberto Valdés , Longarezi Andréa Maturano 
Published: September 2020

O artigo se situa no marco das pesquisas teóricas sobre Aprendizagem e Didática Desenvolvimental realizadas no interior do Grupo de Estudos e Pesquisas em Didática Desenvolvimental e Profissionalização Docente - Gepedi/UFU/BR. O texto aborda quatro aspectos: 1) os conceitos de sistema didático, sistema didático alternativo e sistema didático alternativo desenvolvimental; 2) a identificação e classificação dos sistemas didáticos alternativos desenvolvimentais soviéticos; 3) os argumentos produzidos pelo grupo quanto à inclusão da proposta de Galperin-Talízina entre os diversos sistemas didáticos alternativos desenvolvimentais; e 4) as razões históricas, políticas epistemológicas e éticas que levaram o grupo a assumir a nomenclatura do sistema Elkonin-Davidov como sistema Elkonin-Davidov-Repkin. Do ponto de vista metodológico, o texto se baseia no pensamento sistêmico, nos métodos histórico e lógico, assim como na metodologia construtivo-interpretativa. As análises revelam as fontes documentais, as razoes e os argumentos que permitem incluir o trabalho realizado por P. Ya Galperin e por N. F. Talízina como sistema didático; assim como a incorporar o nome do psicólogo, didata, metodólogo e filólogo ucraniano V. V. Repkin na nomenclatura do sistema didático Elkonin-Davidov-Repkin.
Nigella sativa (black seed) safety: an overview
Authors: Mashayekhi-Sardoo Habibeh , Rezaee Ramin , Karimi Gholamreza 
Published: September 2020

Abstract

Nigella sativa (commonly known as black seed or black cumin), from the family Ranunculaceae, is a plant that grows in countries bordering the Mediterranean Sea. This narrative review discusses the toxicological profile reported by short- to long-term studies that examined different extracts and oils of N. sativa seeds. Scientific databases including Web of Science, PubMed, Scopus, and Google Scholar were searched using appropriate keywords. LD
50
for administered N. sativa seed fixed oil varied from 28.8 mL/kg to 3,371 mg/kg in mice, while 21 g/kg of aqueous, methanol, and chloroform extracts of N. sativa did not lead to any mortality. Subacute toxicity evaluations indicated that aqueous, methanol, and chloroform extracts of N. sativa at doses as high as 6 g/kg do not produce toxicity. Investigation of chronic toxicity found that 2 mL/kg of N. sativa fixed oil is slightly toxic. Cytotoxicity studies indicated that N. sativa chloroform and petroleum ether extracts are more cytotoxic than its other extracts. Although studies that assessed N. sativa toxicity generally introduced it as a safe medicinal herb, to draw a more definitive conclusion on its safety, more detailed studies must be conducted.
Production and differential activity of recombinant human wild-type G6PD and G6PDViangchan
Authors: Vengidasan Lelamekala , Yunus Muhammad Amir , Yusoff Narazah Mohd , Yahaya Badrul Hisham , Ismail Ida Shazrina 
Published: September 2020

Abstract

Background
Glucose-6-phosphate dehydrogenase (G6PD) is essential to produce reduced nicotinamide adenine dinucleotide phosphate, which is required to protect cells against oxidative stress. G6PD deficiency is a genetic variation that may lead to hemolysis with potential consequences, such as kidney failure, and patients often experience low quality of life.

Objectives
To establish a simple, efficient, and optimized method to produce a G6PDViangchan variant and characterize the phenotypes of recombinant human wild-type G6PD and G6PDViangchan.

Methods

G6PD was amplified by polymerase chain reaction (PCR) from a human cDNA plasmid, and the gene for G6PDViangchan was amplified by initiating a mutation at location 871 (G>A) through site-directed mutagenesis. Protein expression and western blotting were conducted after successful cloning. The enzymatic activity of both proteins was assessed spectrophotometrically after purification.

Results
Both amplicons were successfully cloned into a pET26b(+) expression vector and transformed into Escherichia coli BL21 (DE3) cells for overexpression as C-terminally histidine-tagged recombinant proteins. Western blotting confirmed that both proteins were successfully produced at similar levels. The enzymes were purified by immobilized metal (Co) affinity chromatography. Postpurification assay of enzyme activity revealed about 2-fold differences in the levels of specific activity between the wild-type G6PD (155.88 U/mg) and G6PDViangchan (81.85 U/mg), which is consistent with earlier reports. Analysis in silico showed that the coding change in G6PDViangchan has a substantial effect on protein folding structure.

Conclusions
We successfully cloned, expressed, and purified both wild-type G6PD and G6PDViangchan proteins. Such a protocol may be useful for creating a model system to study G6PD deficiency disease.
Data-driven learning in English for academic purposes class
Authors: Giampieri Patrizia 
Published: September 2020

Abstract
This paper will present a translation project with second-year bachelor students together with some observational data. The students firstly translated an academic abstract from Italian (their first language) to English by using the language resources they were acquainted with. Then they translated a second abstract by using a pre-compiled offline corpus of academic articles. The paper findings highlight that the second translations were better as regards grammar and word choices, while sentence structures still showed influences of the students’ first language. The students learnt that a corpus is a useful supplement to a dictionary, as a corpus may corroborate what the dictionary suggests. The report also highlights the importance of corpus analysis training in order to help users process corpus information, which otherwise might be perceived as “distracting”.
Consciousness raising tasks: Developing learners’ reflective attitude toward plurilingualism
Authors: Nagai Noriko 
Published: September 2020

Abstract
This report proposes a number of tasks which help learners become more aware of how their feelings are moulded in their L1 and notice crosslinguistic similarities and differences between their L1 and a target language. The proposed tasks are motivated by findings in the crosslinguistic influence literature and a study that investigated Japanese learners’ perception of crosslinguistic similarities and differences between English and Japanese passives. Japanese has two types of passives, while English has only one. Although the two types of Japanese passives share some properties, they have distinctive functions; one type is mainly used to express adversative feelings of the speaker towards the event a sentence describes, while the other is much the same as the English passive. The study results indicate that half of the subjects perceive crosslinguistic similarities yet avoid using the construction and the other half incorrectly assume similarities which do not exist in reality. The proposed tasks attempt to develop learners’ metalinguistic ability through analysing Japanese and English passives and to facilitate learners’ awareness of crosslinguistic similarities and differences in the passive constructions.
Studying in a foreign language: Study performance and experiences of German students at a Dutch university
Authors: Zijlmans Lidy , van Oostendorp Marc , van Hout Roeland 
Published: September 2020

Abstract
This article reports on the academic performance and experiences of non-native university students, specifically German students in a Dutch academic environment. These students have a substantial dropout rate. In an earlier study, we found correlations between results on language tests and study results. In this study, we used semi-structured interviews with student advisors, students and teachers to investigate in more detail the role of foreign language proficiency in academic success. We identified three major language-related issues: (1) listening and speaking in discussion groups, (2) writing in examinations and assignments, and (3) the negative impact of language proficiency on grades. The quality and readability of the written assignments was repeatedly highlighted as the core problem. Additionally, we investigated the influence of the use of English as an additional foreign language.
Generalised assumed strain curved shell finite elements (CSFE-sh) with shifted-Lagrange and applications on N-T’s shells theory
Authors: Anyi Joseph Nkongho , Amba Jean Chills , Essola Dieudonné , Valery Ngayihi Abbe Claude , Momha Merlin Bodol , Nzengwa Robert 
Published: September 2020

AbstractWe present a simple methodology to design curved shell finite elements based on Nzengwa-Tagne’s shell equations. The element has three degrees of freedom at each node. The displacements field of the element satisfies the exact requirement of rigid body modes in a ‘shifted-Lagrange’ polynomial basis. The element is based on independent strain assumption insofar as it is allowed by the compatibility equations. The element developed herein is first validated on analysis of benchmark problems involving a standard shell with simply supported edges. Examples illustrating the accuracy improvement are included in the analysis. It showed that reasonably accurate results were obtained even when using fewer elements compared to other shell elements. The element is then used to analyse spherical roof structures. The distribution of the various components of deflection is obtained. Furthermore, the effect of introducing concentrated load on a cylindrical clamped ends structure is investigated. It is found that the CSFE3-sh element considered is a very good candidate for the analysis of general shell structures in engineering practice in which the ratio h/R ranges between 1/1000 and 2/5.
Can Mayors Lead on Climate Change? Evidence from Six Years of Surveys
Authors: Einstein Katherine Levine , Glick David M. , Palmer Maxwell 
Published: September 2020

Abstract
In the face of federal government intransigence, climate activists are looking to the local leaders to aggressively address climate change. While local politicians are limited in many respects, their control over land use and transportation policy provides them with powerful tools to reduce Americans’ reliance on cars–thereby decreasing greenhouse gas emissions. Using six years of novel elite survey data, we find that mayors are strongly committed to addressing climate change and reducing their communities’ reliance on cars. They are also supportive of some specific policies–including the construction of dense, multifamily housing and bicycle lanes–that would decrease greenhouse gas emissions. Other policy views, though, reveal that mayors do not consistently endorse evidence-based transportation policy practices that would make walking and cycling safe and attractive modes of transit. Insufficient knowledge, a lack of funding, partisan polarization, and public opposition all pose potent obstacles to mayors taking the lead on climate change.
Application of isometric transformation and robust estimation to compare the measurement results of steel pipe spools
Authors: Tomasz Świętoń , Roman Kadaj , Grzegorz Oleniacz , Izabela Skrzypczak 
Published: September 2020

Abstract
Production of prefabricated pipe spools for the needs of the oil and gas industry requires precise determination of their shape and dimensions. The crucial moment of production is to measure the spool being built, compare it with the design and define the geometry corrections that should be applied at the construction stage. At present, the comparison of spools is usually done in a manual manner in a CAD program or other software dedicated for this purpose and is implemented by combining variously defined translations and rotations. This approach is time-consuming and the results strongly depend on the survey engineer’s experience. In this article, a method of comparing the shape of two spools, based on isometric transformation and robust estimation, has been proposed. This method can be used to automate the comparison process. In standard approach, applied by both design engineers and assemblers, spools are described by a set of coordinates and, in the case of flanges, by sets of appropriately defined angular values. A method of flange description suitable for use in the isometric transformation process has been proposed, and potential problems that may appear at the implementation stage of the algorithm have been discussed. The proposed method makes it possible to determine the elements of a spool that do not fit into the design project in a way that allows minimizing the number of corrections at the construction stage.
Phase evolution and oxidation characteristics of the Nd–Fe–B and Ce–Fe–B magnet scrap powder during the roasting process
Authors: Xin Wenbin , Deng Yongchun , Jiang Yinju , Yuan Ye , Wang Pengyu 
Published: September 2020

AbstractMany developed techniques for rare-earths’ (REs) recovery from magnet scraps are highly sensitive to the oxidative roasting process of scraps under high temperature. This study focused on phase evolution, microstructural changes and element distribution during the roasting of the widely used Nd–Fe–B and high-potential Ce–Fe–B scrap powders at 800°C. The sustained oxidation of Fe to Fe2O3 and the constant formation of composite RE oxides were the main reaction processes with increasing roasting cycles for the two scrap powders. The complete oxidation phases consisted of NdBO3, NdFeO3 and Fe2O3 for the Nd–Fe–B scrap powder, while the final products were NdBO3, GdFeO3 and Fe2O3 as well as individual CeO2 for the Ce–Fe–B scrap powder. An oxygen diffusion front was observed, forming a dark gray oxidized layer with almost the same thickness on the large particle surface. Additionally, a Fe2O3 layer covered the particle surface when the oxidation of the two scrap powders was complete. In oxidized Nd–Fe–B particles, the observed white regions corresponded to the oxidized intergranular Nd-rich phase as indicated by the almost same size and position before and after roasting. In Ce–Fe–B particles, the oxidized intergranular phase appeared to gather and grow, and a RE-rich layer appeared between the oxide/unoxidized layer. Conclusively, the iron-outward diffusion and the oxygen-inward diffusion were dominated by the oxidation of both Nd–Fe–B and Ce–Fe–B particles.
Depressogenic traits and depression: Are humor styles mediators?
Authors: Lin Shayne S.-H. , Hong Chai-Chi , Tsai Liang-Ting , Liu Emily T. 
Published: September 2020

Abstract
Depressogenic traits are personality dispositions that put individuals at a higher risk for developing depression. Measured by the Depressive Experience Questionnaire (DEQ), self-criticism and dependency are two personality traits that are closely related to depression. The current study explored humor styles as potential mediating factors in the relationship between depressogenic traits and depression. Study 1: Given that the traditional Chinese version of the DEQ had not been validated psychometrically, we first conducted a confirmatory factor analysis to determine the most appropriate DEQ scoring system among the existing ones. The results indicated that the reconstructed DEQ had the best psychometric properties for the traditional Chinese version of the DEQ. Study 2: The potential mediating effect of humor styles in the relationship between depressogenic traits and depression was examined. Results showed that two benign humor styles, affiliative and self-enhancing humor styles, mediated the relationship between depressogenic traits (both self-criticism and dependency) and depression. The mediational strength was stronger for self-enhancing than for affiliative humor style. Malign humor styles, aggressive and self-defeating humor styles, did not emerge as mediators. Research and clinical implications for the findings were discussed.
Mechanism of recovery processes for rare earth and iron from Bayan Obo tailings
Authors: Guo Wenliang , Cang Daqiang , Zhang Lingling , Guo Junxiang 
Published: September 2020

Abstract
Rare earth (RE) and iron minerals in tailings exhibit fine embedded granularity and are closely associated with silicates, carbonates, and other lode minerals, which are difficult to be recycled. Studies of these tailings led to some new processes of ore dressing, involving grinding, RE flotation, strong magnetic separation, and positive iron flotation. In this closed circuit process, RE and iron minerals were separated after grinding, and the materials resulted from the flotation of small-sized RE and iron mineral particles were accurately controlled using a combination of inhibitors, dispersants, pH regulators, and collector agents. The ore dressing were ground to a fineness of 0.045 mm, which was a process accounting for 95.6% of the material. The amount of water glass, NXJ (a combination of sodium carbonate mixed with a fine mud dispersant), and BGH (hydroxamic acid collector, a combination of 3-carboxy-2-naphthylhydroxamic acid and C5-9 hydroxamic acid) used in the primary separation of RE were 2.4 kg/t, 2.5 kg/t, and 2.4 kg/t, respectively. The dosages of ammonium fluorosilicate and GXY (fatty acid collector, a combination of sodium oleate mixed with oxidized paraffin soap) used with iron coarse were 2.2 kg/t and 1.2 kg/t, respectively. The RE collectors achieved chemical separation of Ce, La, and other particles and formed stable five-membered cyclic chelates. Consequently, through the closed circuit experiment, the RE grade and recovery rate in the RE concentrate were improved to 50.3 and 61.6%, respectively. The total iron (TFe) grade and recovery rate in the TFe concentrate were improved to 64.0 and 30.0%, respectively, and other useful metals were also enriched; this process managed secondary recycling of RE and TFe possible, leading to improvements in resource utilization.
The effectiveness of scenario-based learning to develop patient safety behavior in first year nursing students
Authors: Yilmaz Derya Uzelli , Palandoken Esra Akin , Ceylan Burcu , Akbiyik Ayşe 
Published: September 2020

Abstract
The aim of this study was to examine the effect of scenario-based learning (SBL) compared to traditional demonstration method on the development of patient safety behavior in first year nursing students. During the 2016–2017 academic year, the Fundamentals of Nursing course curriculum contained the teaching of demonstration method (n=168). In the academic year 2017–2018 was performed with SBL method in the same context (n=183). Objective Structured Clinical Examination (OSCE) that assesses the same three skills was implemented in both academic terms to provide standardization so that students could evaluated in terms of patient safety competency. It was found that students’ performance of some of the steps assessed were not consistently between the demonstration and SBL methods across the three skills. There was a statistically significant difference between demonstration method and SBL method for students’ performing the skill steps related to patient safety in intramuscular injection (p<0.05) Our results suggest that the integration of SBL into the nursing skills training may be used as a method of teaching in order to the development of patient safety skills.
Jewish National Decline and Biblical Figures as ClassicalExempla: Moses, Aaron, Joshua, David, and Elisha inDe Excidio5.2.1
Authors: Bay Carson 
Published: September 2020

AbstractThe fourth century of the Common Era was a period significant for witnessing the effective birth of Christian historiography and the (putatively) definitive separation of ‘Jew’ and ‘Christian’ as distinctive identities. A text emerged, known as Pseudo-Hegesippus orDe Excidio Hierosolymitano(On the Destruction of Jerusalem). This text illustrates how Christian historiography and Christian anti-Jewish ideology at that time could engage with the traditions of classical antiquity. In particular, this article argues that Pseudo-Hegesippus deploys figures from the Hebrew Bible in the mode of classicalexemplaand that it does so within the largely classical conceptual framework of national decline. For Pseudo-Hegesippus, biblical figures presented as classicalexemplaserve to illustrate the historical decline of the Jews until their effective end in 70 CE (when the Romans destroyed Jerusalem and the Temple). One passage,De Excidio5.2.1, and its enlistment of five Hebrew heroes illustrates this point particularly well. The use of exemplarity and the theme of national decline employed there help us appreciateDe Excidioas a distinctive contribution to early Christian historiography and anti-Jewish literature in late antiquity; this expands our ability to imagine the ways in which fourth-century Christian authors could conceive of and articulate Jewish history in classical terms.
The role of temperature differential and subgrade quality on stress, curling, and deflection behavior of rigid pavement
Authors: Setiawan Dian M. 
Published: September 2020

Abstract
To determine performance of rigid pavement, pavement engineers should not only conduct stress, curling, and deflection analysis, but also understand weather conditions and subgrade quality effects on rigid pavement performance well. This study aims to analyze and visualize the mechanical behaviors of rigid pavement in terms of stress, curling, and deflection using the KENPAVE Program under different curling temperature and subgrade quality. Besides, this study also evaluated temperature differential and k-value effects on the stress, curling, and deflection behavior of concrete pavement. The findings revealed that there is a linear correlation between stress and both k-value and curling temperature, with the latter having more significant impact in controlling stress than the former. However, even though curling is not affected by subgrade quality, it significantly depends on the temperature differential since a higher curling temperature produces higher curling behavior. Lastly, a higher temperature differential produces greater deflection, but a higher k-value produces smaller deflection. Nevertheless, deflection behavior has a more significant curve and the position of the highest deflection shifted towards the center of the slab as the curling temperature and subgrade quality increase.
Resilience of terrestrial mammals to logging in an active concession in Sarawak, Borneo
Authors: Maiwald Marius Joscha , Mohd-Azlan Jayasilan , Brodie Jedediah F. 
Published: September 2020

Abstract
Selective logging is very widespread across the tropics and can alter the habitat for myriad wildlife species. But while many studies have assessed the impacts of past logging on forest animals, far fewer have investigated how species respond to logging while the timber operations are actually going on. This is an important knowledge gap because, considering the prevalence of logging across the world, numerous areas will be undergoing active extraction at any given time. We compared the occurrence and diel activity patterns of individual species of medium- to large-bodied terrestrial mammals, as well as the richness of the entire assemblage, among sites that were either unlogged, had been logged historically, or had ongoing ‘reduced impact’ timber extraction in the Kapit Region of Sarawak, Malaysian Borneo. We found no significant differences in estimated occupancy or activity patterns of particular species, or in overall species richness, among logging treatments. Across sites, species richness in this area appeared to be as high as or higher than in many other parts of the state, including some protected areas. Though monitoring is needed to assess potential long-term impacts, our results suggest that reduced-impact logging could allow economic development that is sustainable for many wildlife populations.