bluuebunny/crossref_metadata_2025 huggingface dataset:
Environmental Stress Cracking of PE-HD Induced by Liquid Test Media Representing Crop Protection Formulations
Authors: Thuy Maximilian , Brauch Niels , Niebergall Ute , Alig Ingo , Oehler Harald , Böhning Martin
Published: May 2023

Packaging containers for dangerous goods that include aggressive liquids require that any packaging material that is based on high-density polyethylene has a high degree of stability and durability. This work is focused on testing the environmental stress cracking of the high-density polyethylenes used for such containers in contact with crop protection formulations, in particular, two model liquids established in Germany as standardized test media representatives for crop protection formulations containing the various admixtures typical for such products. One of the liquids is water-based and contains mostly surface-active ingredients, while the other is solvent-based and includes some emulsifiers. Originally established for pin impression tests, these model liquids and their individual components were here used for the first time as environmental media in the Full Notch Creep Test, which addresses the resistance against environmental stress cracking. The Full Notch Creep Test was carried out on five high-density polyethylene types with both model liquids, and also on one selected material with its components. The evaluation was focused on the fracture surface structures, which were visualized by a scanning electron microscope and by optical in situ imaging of the notch opening. While the water-based model liquid and its surface-active individual components induced environmental stress cracking with the characteristic pattern for a craze-crack mechanism and so-called brittle fracture on the surface, the solvent-based model liquid and its soluble ingredients exhibited rather ductile failure behavior, caused by the plasticizing effect on the polymer that reduced the yield stress of the high-density polyethylene. For both cases, fracture surface analysis, together with side views of the crack opening, showed a clear relation between surface pattern, notch deformation (e.g., by blunting), or crack opening due to crack growth with time to failure and the solubility of the liquids in high-density polyethylene.
Machine Learning of Fatigue Strength of Hybrid and Additively Manufactured Aluminum Alloys in VHCF Regime
Authors: Awd Mustafa , Walther Frank
Published: May 2023

Researchers have examined a variety of methods for merging various production processes. When coupled with wrought alloys, selective laser melting (SLM) creates a hybrid, more capable production method. This study investigated the tensile characteristics, microstructure, and internal flaws of hybrid wrought–SLM manufacturing. Hybrid specimens were produced by heating the base plate to 200°C. Using additive manufacturing, specimens of aluminum (Al) 4047 alloys were built on a wrought Al 7020 alloy. Stress relief at 240°C was carried out to remove the induced residual stresses. Experiments were designed to investigate the influence of the process conditions on the hybrid specimens. In the very high cycle fatigue (VHCF) range, testing was conducted at a frequency of 20 kHz using intermittent vibrations. The system was designed to undergo 200 ms of resonance before halting for the next 200 ms to avoid deformation-induced temperature accumulation. The temperature was measured by a nontactile pyrometer. The objective was to minimize excessive heating while also chilling with high-pressure dry air. The results were then used to train a machine-learning algorithm that can make predictions about the strength of whole-specimen configurations.
Development and Evaluation of a Test Specimen to Determine the Influence of Welding Parameters on the Fatigue Strength of Aluminum Frames for Lightweight Vehicle Designs
Authors: Raschke-Luther Sascha , Schröder Marcus , Forstmann Jochen
Published: May 2023

In the bicycle and e-bike industry, lightweight designs often incorporate aluminum tube constructions that are joined through inert gas welding. These constructions are susceptible to fatigue damage. A standardized test specimen (two tubes joined to a T shape) was designed to determine how different welding parameters and surface and heat treatments affect the fatigue strength of the structure. In particular, it was evaluated how the gap between two tubes at the beginning of the welding process affects the fatigue strength. Therefore, test specimens without a gap, with a gap of 2 mm, and with a gap of 4 mm at the beginning of the welding process were manufactured in a production environment typical for the bicycle industry. To obtain standardized S-N curves and their slope b for each type and to check whether the results varied significantly, the tests were planned and evaluated according to DIN 50100, 8.2.2. A total number of 55 samples were tested until failure using force-controlled fatigue tests. The result of the evaluation shows that a larger gap between the tubes does correlate with a significant reduction in fatigue strength. A 4-mm gap results in approximately half the fatigue strength. After the fatigue testing, a metallographic analysis was done. No irregularities in the material could be found, which suggests that the reason for the reduced fatigue strength was a higher notch effect of the weld due to the bigger gaps. The test results were compared to a finite element analysis (FEA)–based simulation. The test specimen and test setup were published under a creative commons license, which enables others to do additional tests and compare the results. Based on further tests, additional fatigue classes (FATclasses), especially for thin-walled aluminum tube designs, could be defined.
Toward Characterization of Variable-Amplitude Fatigue Crack Growth Properties
Authors: Sunder R.
Published: May 2023

Variable-amplitude fatigue crack propagation (VAFCP) involves load history effects whose characterization falls beyond the scope of prevailing constant-amplitude fatigue crack growth testing practices such as those outlined in ASTM E647. Test procedures are described for reproducible laboratory characterization of three independent material properties that are crucial to experimental and analytical study of VAFCP. The new test procedures require dedicated application software that can operate with existing computer-controlled test equipment and instrumentation. They can be readily applied to standard laboratory test coupons currently used for fatigue crack growth testing.
Comparison of Two Damage Parameters for Nonproportional Multiaxial Fatigue Assessment of Welded Structures
Authors: Wei Zhigang , Dong Pingsha , Mei Jifa , Ravi Sandipp Krishnan
Published: May 2023

Identifying multiaxial fatigue cycles and the corresponding multiaxial fatigue damage parameters is the key to accurate fatigue life assessment of welded structures. The path-dependent maximum range (PDMR) cycle counting and life assessment method provides a consistent framework for simultaneously determining both multiaxial fatigue cycles and the values of the associated fatigue damage parameters. First, the PDMR method performs multiaxial cycle counting directly in an equivalent multiple stress-strain space, while being capable of reproducing the classical rainflow cycle results for uniaxial stress loading. Second, to complement the PDMR cycle-counting procedure, two fatigue damage parameters—loading path length (PL) and moment of load path (MLP)—have been successfully developed to capture the nonproportional loading effects. Both parameters can be reduced to the traditional range definition for uniaxial stress loading. Years of research studies based on simple loading cases (such as synchronous sinusoidal loadings) demonstrate the superiority of the PDMR method. In particular, PDMR-MLP has exhibited a strong consistency in the theoretical framework and overall superior data correlation over other existing methods. However, a detailed, direct, head-to-head comparison between PDMR-PL and PDMR-MLP for typical loading cases has never been conducted, impeding deep understanding of the two multiaxial fatigue damage parameters. Furthermore, because PDMR-MLP has recently been implemented in the PDMR code (with Fortran), direct comparison between these two fatigue damage parameters is possible, not only for fatigue damage and life assessment for simple loading cases (such as asynchronous sinusoidal loadings) but also for general variable-amplitude multiaxial fatigue loading applications. This paper compares these two multiaxial fatigue damage parameters and discusses their implications and applications.
AN ANALYSIS ON A PUBLIC UNIVERSITY FINAL YEAR ENGINEERING STUDENTS’ STRESS LEVELS
Authors: Haslinda Hashim  , Anita Abd Rani  , Nor Yazi Khamis  , Azwin Arif Abdul Rahim  , Zuraina Ali  , Zubair Khalil  , Adam Shariff Adli Aminuddin  , Nor Akmar Nordin
Published: May 2023

Stress is one of the serious issues that affect university students’ life and has been identified to cause academic decline, poor relationships with peers and family members and overall dissatisfaction with life. As for final year university students, academic workloads, expectations from societies and future career uncertainties are some of the common factors that create stress. Therefore, this case study aims to investigate the stress experienced by the final year engineering students at a public university. The main objectives are to identify factors that cause stress and its effects on the students. A five-dimension set of questionnaires i.e. Interpersonal, Intrapersonal, Motivation, Environment, and Workload was distributed to 260 final year students of an engineering faculty before they participated in a Stress Management Awareness Program. The program which was part of the Final Year Project (FYP), exposed the students with stress management strategies. Later, interviews were conducted to explore the extent of stress effects on the students’ academic success, and lifestyle in general, and the effect of the workshop. The mean scores of the dimensions and its items were analysed descriptively and findings from the interviews were compared after the students had undergone the workshop. The quantitative results indicated a moderate level of stress among the students with some significance in ‘Environment’ and ‘Workloads’ dimensions. Qualitatively, the workshop had made the students aware of their stress experiences, and educated them with various stress management strategies. Interestingly, there were similar continuous patterns of stress experiences from 33 volunteered interviewees, which have brought to light the actual circumstances of students’ stress. Evidently, these results call for a context-driven stress management module that can provide the students with resourceful selfregulated strategies in coping with the demanding life as final year engineering students.
KADAR NAFKAH SUAMI KEPADA ISTERI DAN HUBUNGANNYA DENGAN URUF MENURUT PERSPEKTIF SHARIAH: SUATU PERBINCANGAN
Authors: Mansor bin Sulaiman  , Hasan bin Ahmad
Published: May 2023

Tulisan ini membincangkan berkenaan kadar nafkah suami kepada isteri menerusi perbincangan dalil uruf. Perkara ini dibincangkan disebabkan tiada ketetapan berkenaan jumlah sebenar nafkah yang perlu diberikan kepada isteri untuk dijadikan rujukan, terutama apabila berlaku pertikaian daripada isteri terhadap pengabaian nafkah mereka oleh suami. Bagi mencapai tujuan tersebut, tulisan ini adalah bersandarkan kepada kajian perpustakaan sepenuhnya dengan focus kepada penelitian terhadap rujukan-rujukan dalam bidang fiqh, usul fiqh, tafsir al-Quran dan al-Hadith serta tulisan-tulisan terkini berkenaan isu nafkah isteri. Seterusnya analisis daripada kajian perpustakaan ini menemui bahawa terdapat nas-nas yang memberikan panduan kepada kadar nafkah tersebut tetapi ia masih berlegar dalam lingkungan dalil dzanni yang terbuka untuk dibahaskan. Menerusi penelitian terhadap nas-nas ini mendapati bahawa kadar nafkah tersebut sememangnya didiamkan oleh syarak bagi membuka ruang kepada keterbukaan kadar itu mengikut keperluan-keperluan yang berkaitan masa, tempat dan keadaan tertentu. Akhirnya, tulisan ini mendapati bahawa kadar nafkah tersebut boleh dicadangkan oleh pihak berautoriti menerusi panduan daripada dalil uruf.
This article discusses the husband's stipulated financial obligation to his wife through the discussion of daril uruf. This matter is discussed because there is no stipulation regarding the actual amount of alimony that needs to be given to the wife to be used as a reference, especially when there is a dispute from the wife regarding the neglect of their alimony by the husband. In order to achieve that goal, this article is based on a complete library study with a focus on research on references in the field of fiqh, usul fiqh, interpretation of the Quran and al-Hadith as well as the latest writings on the issue of wife support. Next, the analysis from this library study found that there are texts that provide guidance to the alimony rate but it still hovers within the realm of dzanni arguments that are open to debate. Through the research of these texts, it was found that the rate of maintenance is indeed kept silent by the syariah to open up space for the openness of the rate according to the requirements related to time, place and certain circumstances. Finally, this article finds that the alimony rate can be suggested by the authority through guidance from the evidence.
Medium- and time-related effects on hypothermic storage of rat testicular cells
Authors: Elfageih Rageia , Reda Ahmed , Rós Kjartansdóttir Kristín , Pampanini Valentina , Söder Olle , Stukenborg Jan-Bernd
Published: May 2023

Testicular samples obtained for fertility preservation often need to be transported between clinics. This study aimed to mimic this short-term hypothermic storage (4–8°C) and explore the impact of these conditions and the transport medium composition on prepubertal rat testicular tissue samples. Testicular tissue samples obtained from 7 days post-partum rats were transferred to six compositionally different basal culture media and a balanced salt solution, which had been kept at 4–8°C prior to transfer. The samples were preserved for either 12 or 24 h in these hypothermic conditions. The potential effects of the short-term storage were evaluated by assessing the morphology, measuring the testosterone levels by radioimmunoassay and analysing 96 genes with TaqMan Low-Density Arrays. Levels of gene expression related to energy, apoptosis, and angiogenesis pathways were altered after hypothermic storage for 12 and especially 24 h. We observed only minor differences in gene expression profiles for germ and testicular somatic cells and no differences in tissue morphology and testosterone production levels. Short-term hypothermic storage of testicular tissue with a maximum duration of 24 h does not affect the overall expression profile of testicular cell-specific genes; however, in a minor way, it affects the expression of specific cellular genes.

Lay summary

Male fertility depends on the proper functioning of cells which develop into reproductive cells. Due to an increasing number of childhood cancer survivors suffering from treatment-related fertility problems, as well as recent reports showing a dramatic decrease in sperm counts over the last decades, male fertility preservation has become an important research topic. To date, there is no method to restore fertility for men who are not able to produce sperm. One promising method to preserve the potential fertility of these patients is freezing tissue or cells from the testicles for future fertility treatments. A critical phase in freezing testicular tissue or cells is the time between removing the tissue from the testicles and freezing it. To better understand the impact of this phase on the quality of the testicular tissue, we used the testes of rats as a model for our research. We found that cooling testis tissue has only minor effects on the expression of genes that are important for testis function.
Formal semantics and analysis of tokenomics properties
Authors:   Glushkov Institute of Cybernetics NAS of Ukraine, Letychevskyi O.O. , Peschanenko V.S. ,   Kherson State University, Poltorackiy M.Yu. ,   Kherson State University, Tarasich Yu.H. ,   Kherson State University, Vinnyk M.O. ,   Kherson State University
Published: May 2023

Today we are witnessing the rapid development of products and services based on blockchain technology. Cryptocurrencies and tokens are becoming an integral part of a person’s daily life. One of the main and, at the same time, the most difficult task for each project is the creation of a self-governing token economy. The violation of properties, such as equilibrium and decentralization, can result in the failure of a project and financial losses. Using the math and formal methods is a simple and efficient way to create self-sustainable token economies right at the stage of MVP development. Despite the rapid development of tokenomics, its popularity, and the rapid pace of implementing blockchain technology in various business areas, only a small number of works have examined formal models of tokenomics. In this study, we present an algebraic approach to analyzing the properties of tokenomics. The algebraic modeling approach is implemented within the framework of the Insertion Modeling System (IMS) that was developed at the Glushkov Institute of Cybernetics of the National Academy of Sciences of Ukraine under the guidance of an Academician of the National Academy of Sciences of Ukraine, Professor A.A. Letichevsky. The algebraic modeling methods prove the properties of safety and liveness. Insertion modeling is an approach for modeling complex distributed systems, which is based on the theory of interaction between agents and environments. The modeling algorithm is based on the historical data of exchange trading and the liquidity of tokens - which allows us to make accurate predictions and show possible outcomes. The interaction of tokenomics agents and their behavior, represented by the equations of behavioral algebra, is considered. The use of the algebraic approach to tokenomics development for the Internet of Things is considered, and the formal representations and methods of property analysis are presented. The obtained results allow us to discuss the possibility of using formal methods in the study of tokenomics.
Plan Nacional de Desarrollo “Todos por un Nuevo País”: Reflexiones y dilemas entorno a los conceptos de paz, justicia y desarrollo
Authors: Vargas Ibáñez Luisa Fernanda
Published: May 2023

El Plan Nacional de Desarrollo (PND) 2014-2018 “Todos por un nuevo país” tuvo entre sus objetivos sentar las bases para la construcción de paz y promover el desarrollo económico a través de reformas que generaran el aumento de los ingresos del país. Estas reformas, paralelamente, buscaban asegurar el ingreso de Colombia a la OCDE, conocida como el “Club de los países ricos”. En este marco, la paz y el desarrollo se convirtieron en aspectos centrales del PND. Este artículo analiza las representaciones y relaciones que se establecieron entre estos conceptos a la luz del Análisis Crítico del Discurso (ACD) y cómo su interacción puede explicar algunas de las tensiones que se generaron en los procesos de restitución de tierras en Colombia. En particular, este artículo analiza las tensiones que se presentan cuando el derecho a la restitución entra en conflicto con políticas o actores que se comprendieron como fundamentales para el desarrollo económico del país en el Plan Nacional de Desarrollo 2014-2018.
Faà di Bruno Hopf algebras
Authors: Figueroa Héctor , Várilly Joseph C. , Gracia-Bondía José M.
Published: May 2023

This is a short review on the Faà di Bruno formulas, implementing composition of real-analytic functions, and a Hopf algebra associated to such formulas. This structure provides, among several other things, a short proof of the Lie-Scheffers theorem, and relates the Lagrange inversion formulas with antipodes. It is also the maximal commutative Hopf subalgebra of the one used by Connes and Moscovici to study diffeomorphisms in a noncommutative geometry setting. The link of Faà di Bruno formulas with the theory of set partitions is developed in some detail.
A novel iterative method to solve nonlinear wave-like equations of fractional order with variable coefficients
Authors: Khalouta Ali
Published: May 2023

In this work, we suggest a novel iterative method to give approximate solutions of nonlinear wave-like equations of fractional order with variable coefficients. The advantage of the proposed method is the ability to combine two different methods: Shehu transform method and homotopy analysis method, in addition to providing an approximate solution in the form of a convergent series with easily computable components, requiring no linearization or small perturbation. This method can be called Shehu homotopy analysis method (SHAM). Three different examples are presented to illustrate the preciseness and effectiveness of the proposed method. The numerical results show that the solutions obtained by SHAM are in good agreement with the solutions found in the literature. Furthermore, the results show that this method can be implemented in an easy way and therefore can be used to solve other nonlinear fractional partial differential equations.
On cusps of hyperbolic once-punctured torus bundles over the circle
Authors: López-López Jorge L. , Villicaña-Molina Yesenia
Published: May 2023

The geometry of certain canonical triangulation of once-punctured torus bundles over the circle is applied to the problem of computing their cusp tori. We are also concerned with the problem of finding the limit points of the set formed by such cusp tori, inside the moduli space of the torus. Our discussion generalizes examples which were elaborated by H. Helling (unpublished) and F. Guéritaud.
Defending Christianity from the ‘rainbow plague’
Authors: Baran Dominika
Published: May 2023

Building on previous work on the anti-genderism register and moments of enregisterment, and adopting the Discourse-Historical Approach with its notion of topoi as an argumentation device used by right-wing populists, this article examines how the Catholic Church and right-wing politicians and media have mobilised against the alleged threat of ‘LGBT/gender ideology’ in Poland. Based on the analysis of 70 texts including homilies, political speeches, news articles and interviews, the article identifies three content-related topoi that are relayed across various anti-genderist actors. Together, these topoi and their repeated reuptake help to construct a historicised narrative of Poland as the defender of Christianity and of Europe, and to legitimise different actors’ anti-LGBT campaigns as they pursue their particular agendas. The article makes a contribution to exploring the processes through which the globally circulating anti-genderism register operates in a specific local context.
lived experience of older adults’ adjustment to amputation in the context of wheelchair use
Authors: Lopez Lauren , Graham Fiona , Bell Elliot , Hay-Smith E. Jean C.
Published: May 2023

Amputation has a profound psychological impact on recipients. The experience of adjustment to lower limb amputation (LLA) by older adults who use wheelchairs was explored using Interpretative Phenomenological Analysis (IPA). Four men with lower limb amputations due to vascular disease who identified as wheelchair users were interviewed. Participants’ experiences of adjustment to LLA are represented by two themes: “Being an Active Agent” and “Psychosocial Adjustment as an Iterative Process”. Being an Active Agent included three elements: self-reflection, a sense of control over one’s LLA and the belief one is able to take action in decision-making in daily life. The second theme ‘Psychosocial Adjustment as an Iterative Process’ described the ongoing nature of the participants’ narratives of adjustment to LLA. This theme also encompassed participants’ experiences of adjustment to LLA as firmly linked to management of previous life events. Participants’ adjustment did not appear to be directly influenced by the mobility aid they used; rather, the mobility aid provided opportunities for adjustment to occur. Older adults’ adjustment to LLA appears to be influenced by their perception of being an active agent in their adjustment process, particularly in relation to decision-making. Adjustment also appears to be a process which older adults continue to engage in after the amputation event. The findings of this study suggest practical strategies that clinicians can use with older adults undergoing amputation
A novel swarm intelligence optimized extreme learning machine for predicting soil shear strength: A case study at Hoa Vuong new urban project (Vietnam)
Authors: Nhu Viet-Ha , Thai Pham Binh , Bui Tien Dieu
Published: May 2023

In geotechnical engineering, soil shear strength is one of the most important parameters used in the design and construction of construction projects. However, determining this parameter in the laboratory is costly and time-consuming. Therefore, the main objective of this work is to develop a new alternative machine learning approach based on extreme learning machine (ELM) and Particle Swarm Optimization (PSO), namely PSO-ELM, for the shear strength prediction of soil for the Hoa Vuong new urban project in Nam Dinh province, North Vietnam. For this purpose, twelve soil parameters were collected on data from a survey of 155 soil samples to construct and validate the proposed model. We assessed the model's performance using the root-mean-square error (RMSE), the mean absolute error (MAE), and the coefficient of determination (R2). We compared the model's capability with five benchmark models, support vector regression (SVR), Gaussian process (GP), multi-layer perceptron neural network (MLP-NN), radial basis function neural network (RBF-NN), and the fast-decision tree (Fast-DT). The results revealed that the proposed PSO-ELM model yielded the highest prediction performance and outperformed the five benchmark models. It suggests that PSO-ELM can be an alternative method in estimating the shear strength of soil that would help geotechnical engineers reduce the cost of construction.
Analysis and modelling of competing risks survival data using modified Weibull additive hazards regression approach
Authors: REHMAN Habbiburr , CHANDRA N. , ABUZAİD Ali
Published: May 2023

The cause-specific hazard function plays an important role in developing the regression models for competing risks survival data. Proportional hazards and additive hazards are the commonly used regression approaches in survival analysis. Mostly, in literature, the proportional hazards model was used for parametric regression modelling of survival data. In this article, we introduce a parametric additive hazards regression model for survival analysis with competing risks. For employing a parametric model we consider the modified Weibull distribution as a baseline model which is capable to model survival data with non-monotonic behaviour of hazard rate. The estimation process is carried out via maximum likelihood and Bayesian approaches. In addition to Bayesian methods, a class of non-informative types of prior is introduced with squared error (symmetric) and linear-exponential (asymmetric) loss functions. The relative performance of the different estimators is assessed using Monte Carlo simulation. Finally, using the proposed methodology, a real data analysis is performed.
CONHECIMENTO, CRIATIVIDADE E PRODUTIVIDADE SOB A PERSPECTIVA DA LINGUÍSTICA FUNCIONAL CENTRADA NO USO
Authors: FURTADO DA CUNHA Maria Angélica , CEZARIO Maria Maura
Published: May 2023

RESUMO Discutimos, neste artigo, as noções de conhecimento, criatividade e produtividade linguísticos tal como são concebidas na Linguística Funcional e na Gramática de Construções, fazendo também uma revisão, embora mais breve, desses conceitos na Gramática Gerativa. Nesse sentido, revisitamos a postura que diferentes linguistas adotam em relação a essas noções, confrontando-as e ressaltando suas divergências. Relacionamos cada uma das concepções aos pressupostos teóricos específicos de cada modelo de análise, apontando, ainda, o desenvolvimento que tais noções tiveram ao longo do tempo, resultado do próprio desenvolvimento da Linguística como ciência. Caracterizamos a construção e suas propriedades e, sob o enquadre de modelos construcionistas, relacionamos a criatividade e a produtividade à propriedade de esquematicidade das construções. Por fim, baseadas na Linguística Funcional Centrada no Uso, examinamos a construção transitiva e as construções VAdjADV e VAdj-mente do português do Brasil, para ilustrar a atuação da criatividade e da produtividade e de fatores comunicativos e cognitivos que motivam novos usos dessas construções.
A COORDENAÇÃO ADVERSATIVA SUBSTITUTIVA NÃO X, MAS Y: UMA ANÁLISE DISCURSIVO-FUNCIONAL PARA O APAGAMENTO SINTÁTICO
Authors: GALVÃO PASSETTI Gabriel Henrique , PEZATTI Erotilde Goreti
Published: May 2023

RESUMO Este artigo investiga, sob a perspectiva da Gramática Discursivo-Funcional, a coordenação adversativa substitutiva, em que o segundo membro coordenado – e, às vezes, o primeiro também – é expresso por sintagma ou palavra, como em cê num dá tanto valor ao ídolo, mas à música dele. Essas estruturas têm recebido pouca atenção por parte de estudos funcionalistas, com exceção da Semântica Argumentativa (ANSCOMBRE; DUCROT, 1977; VOGT; DUCROT, 1980). De acordo com a teoria aqui adotada, nessas expressões, há dois Atos Discursivos relacionados, tendo o segundo membro da coordenação molde de conteúdo Tético com um Subato. Semanticamente, ambos os membros constituem Conteúdos Proposicionais e, em última instância, predicações, em que o segundo membro apresenta molde de predicação Identificacional, Classificacional ou Relacional, formulados numa interação entre os componentes Gramatical e Contextual. Assim, o segundo membro da coordenação é expresso por um único sintagma ou palavra, que introduz a informação nova (focal), considerada pelo Falante importante para atualizar a informação pragmática do Ouvinte. Advogamos, em consonância com o modelo teórico adotado, que não há apagamento de constituintes da predicação no segundo membro, mas que o fenômeno é resultado de uma discrepância (mismatch) entre os níveis pragmático e semântico na gramática do português.
La importancia de la participación y la colaboración intercultural en la formación de enfermeras/os en las comunidades wichí del Chaco salteño
Authors: Mancinelli Gloria
Published: May 2023

Resumen El artículo aborda la importancia de la colaboración intercultural en la formación de enfermeras/os para garantizar el derecho a la salud en comunidades del pueblo wichí. Describe y analiza debates que fueron desarrollados entre profesionales, de diversas disciplinas, a cargo de la elaboración del currículo del primer curso de Enfermería Intercultural impartido en territorio indígena de la provincia de Salta (Argentina). El estudio de estos debates muestra que los espacios de colaboración intercultural, donde se reconocen, valoran y respetan los diversos sistemas de conocimientos, son un recurso útil para la formación de enfermeras/os. Estos espacios contribuyen a garantizar la participación reconocida en marcos internacionales para los pueblos indígenas y valorada por la Organización Mundial de la Salud y la Organización Panamericana de la Salud para la construcción de respuestas en salud. Sin embargo, la normativa establecida para la aprobación del plan de estudio, en Argentina, limita el desarrollo de este tipo de espacios, restringiendo a su vez los alcances de las políticas y programas de salud focalizados en esta población.
¿Por qué todos los técnicos de campo del Programa Nacional de Chagas de Argentina son varones?
Authors: Mateyca Celeste
Published: May 2023

Resumen El Chagas es una enfermedad causada por el parásito Trypanosoma cruzi y una problemática de salud socioambiental presente en todo el mundo. Una de las vías de transmisión de este parásito es a través del contacto con heces de vinchucas infectadas. En Argentina existen programas de control vectorial que se encargan de prevenir esta vía de transmisión. Específicamente quienes realizan este trabajo son los técnicos de campo, que son prácticamente todos varones. Mediante un abordaje cualitativo e interpretativo que incluyó entrevistas, análisis documental y observación, indagamos por qué las mujeres no se desarrollan en esta área ocupacional dentro del Programa Nacional de Chagas. La mayoría de las personas entrevistadas justificaron la falta de contratación de mujeres basándose en estereotipos de género. Otro gran grupo indicó que se debe al posible daño que los insecticidas les generarían. Sin embargo, no existen recomendaciones ni reglamentaciones oficiales que demuestren que las mujeres no deban realizar este tipo de trabajo, por lo que concluimos que se trata de un acto discriminatorio por género hacia ellas. Consideramos que es necesario que los equipos de trabajo sean diversos en cuanto a género, ya que podrían mejorar las intervenciones y estrategias de control vectorial en los diferentes territorios.
Learning from Ryuko Kubota: Applied Linguistics, Race, Identity, and Critical Approaches
Authors: Kubota Ryuko , Hibarino Denise Akemi , Silva Jhuliane Evelyn da
Published: May 2023

ABSTRACT: Since the 1990s Ryuko Kubota has extensively researched race, identity, and critical approaches to teacher development in the area of Applied Linguistics (AL). More recently, her last publications include the relevance of translanguaging and ongoing work with the Sister Scholars. As the result of our interest in Kubota’s extremely significant discussions, in this interview, Kubota points out the challenges AL has faced in the last years, as well as the complexities of working in the Global North. Besides, she provides compelling insights in antiracist pedagogy and the role of Freire in English language teaching.
Baccharis vulneraria (Asteraceae) cuttings in different substrates
Authors: Rodrigues Kétlin Fernanda , Winhelmann Mara Cintia , Gastmann Julia , Brito Diego Brandão de , Hoehne Lucélia , Freitas Elisete Maria de
Published: May 2023

Abstract The objective of the study was to identify the most suitable substrate and type of cutting to obtain seedlings from Baccharis vulneraria Baker cuttings. Apical and stem cuttings were collected from stock plants grown in a greenhouse. After collection, the cuttings were grown in the following substrates: commercial peat-based substrate (CPS); Vermiculite (VM); carbonized rice husk (CRH); Coconut fiber (CF); VM and CRH (1:1) (VM + CRH); VM and CF (1:1) (VM + CF); and CRH and CF (1:1) (CRH + CF) mixtures. The experiment used a completely randomized factorial design and, after 60 days, the percentage of survival and rooting (% SR), aerial part length (APL) and roots length (RSL), number of shoots (SN) and new leaves (LN), root volume (RSV), aerial part dry mass (APDM), and roots dry mass (RSDM) were evaluated. An interaction was found between the type of substrate and cutting for APL, RSL, LN, RSV, and RSM. On the other hand, %SR, SN and APDM differed only by cutting type. Apical cuttings showed higher APL, while internode cuttings showed higher SN, LN, RSV, and APDM. CPS promoted higher RSL in both types of cuttings, being a suitable option for the propagation of Baccharis vulneraria, particularly in internode cuttings.
RAÇA E ESCRAVIDÃO EM MEMÓRIAS E ROMANCES: BRASIL, C.1820-1870
Authors: Raminelli Ronald
Published: May 2023

Resumo Este artigo analisa como a hierarquia racial, elaborada por filósofos e anatomistas, prestou-se não somente a defender a escravidão e a condução dos africanos à civilização, mas também a combater o tráfico de almas e incentivar a abolição do cativeiro. De facto, as teorias raciais reforçaram os argumentos escravistas e antiescravistas. O artigo examinou vários letrados brasileiros, mas particularmente os escritos do naturalista Frederico Burlamaque, do político Adolfo Bezerra de Menezes, dos romancistas Joaquim Manuel de Macedo e José de Alencar. Entre 1820 e 1870, eles recorreram à teoria do clima, à monogenia, poligenia, frenologia e fisiognomia para descrever os escravizados e seus descendentes. Assim, enumeravam os males da escravidão ou a contribuição incontornável dos escravizados para a construção do Brasil. Esses letrados defendiam pontos de vista opostos, mas, como parte da elite, não divergiam em relação à supremacia da raça branca.
Nasal patency in mouth breathing children
Authors: Castellanos Merly Fernanda Illera , Silva Hilton Justino da , Moura Silvio Ricardo Couto de , Fontes Luciana de Barros Correia , Lima Niedje Siqueira de , Bezerra Thiago Freire Pinto , Cunha Daniele Andrade da
Published: May 2023

ABSTRACT Several studies have shown the importance of quantitative assessment in nasal patency and functional status of the upper airways to provide clinical and diagnostic information in oral breather individuals, which are of great interest to speech therapy. The aim of the study was to evaluate the effect of nasal saline solution irrigation on the upper airways through nasal aeration and active anterior rhinomanometry in oral breathing children. This was an eight case series study, carried out in children aged 7 to 10 years with an otorhinolaryngological clinical diagnosis of mouth breathing. The study consisted of three stages: (I) initial evaluation; (II) intervention; and (III) final evaluation. The questionnaires of the Index for the Identification of Oral Breathing Signs and Symptoms and disease-specific quality of life in pediatric patients with sinonasal complaints were applied, nasal aeration assessments and the anterior active rhinomanometry exam were carried out. The intervention was performed by irrigating nasal saline solution with 10ml. Afterwards, they were re-evaluated by nasal aeration evaluation and rhinomanometry to compare the results. Regarding nasal aeration and rhinomanometry evaluation, from the 16 comparative measurements between pre and post nasal irrigation, we obtained significant changes in nasal aeration and nasal resistance. Nasal irrigation resulted in improvement in nasal aeration measurements while nasal flow measurements from rhinomanometry remained unchanged considering pre and post nasal irrigation.
Patência nasal em crianças respiradoras orais
Authors: Castellanos Merly Fernanda Illera , Silva Hilton Justino da , Moura Silvio Ricardo Couto de , Fontes Luciana de Barros Correia , Lima Niedje Siqueira de , Bezerra Thiago Freire Pinto , Cunha Daniele Andrade da
Published: May 2023

RESUMO Vários estudos mostram a importância da avaliação quantitativa na patência nasal e do estado funcional das vias aéreas superiores para fornecer informações clínicas e diagnósticas em indivíduos respiradores orais, as quais são de grande interesse para a fonoaudiologia. O objetivo deste estudo foi avaliar o efeito da irrigação de solução salina nasal nas vias aéreas superiores através da aeração nasal e rinomanometria anterior ativa em crianças respiradoras orais. Estudo de série de oito casos, realizado em crianças com idades entre 7 e 10 anos, com diagnóstico clínico otorrinolaringológico de respiração oral. O estudo consistiu em três etapas: avaliação inicial; intervenção e avaliação final. Foram aplicados os questionários do Índice de Identificação dos Sinais e Sintomas da Respiração Oral e qualidade de vida específica para doenças em pacientes pediátricos com queixas sinonasais. Realizaram-se as avaliações da aeração nasal e o exame da rinomanometria anterior ativa. A intervenção foi realizada por meio da irrigação de solução salina nasal com 10 ml. Em seguida, os pacientes foram reavaliados pela avaliação da aeração nasal e rinomanometria, para comparar os resultados. Em relação à avaliação da aeração nasal e rinomanometria, das 16 medidas comparativas entre pré e pós-irrigação nasal, constataram-se mudanças significativas na aeração nasal e na resistência nasal. A irrigação nasal resultou em melhora nas medidas da aeração nasal, enquanto para o fluxo nasal da rinomanometria, as medidas permaneceram inalteradas entre pré e pós-irrigação nasal.
Ornamental aquaculture as a pathway for the introduction of non-native fish in coastal drainage of northeastern Brazil
Authors: Luduvice Jefferson Saulo da Vitória , Brito Marcelo Fulgêncio Guedes
Published: May 2023

Abstract: Aim We present the first record of the introduction of three non-native ornamental fish species, resulting from ornamental aquaculture escapes on the Northeast Mata Atlântica hydrographic ecoregion, with information on the reproductive activity. Methods The specimens were collected bimonthly between 2018 and 2019 using seine and sieve nets, and analyzed for determination of reproductive phases. Results A total of 830 specimens were collected, corresponding to the species Hyphessobrycon eques (N= 311), Poecilia reticulata (N= 500), and Xiphophorus maculatus (N= 19). We used 250 specimens for reproductive analysis. Hyphessobrycon eques and P. reticulata were reproductively active throughout the sampling period. Among the species, the smallest reproductive female measured 22.26 mm (H. eques), 12.53 mm (P. reticulata), and 17.58 mm (X. maculatus). The smallest males measured 20.64 mm (H. eques), 10.71 mm (P. reticulata), and 17.17 mm (X. maculatus). Conclusions The presence of reproductive specimens of H. eques and P. reticulata throughout the year supports the hypothesis of their establishment. We hypothesize that the introduction of X. maculatus is a recent event.
Lecturer Perceptions of Employability Skills: Case Study in Vocational Education Diploma (VED)
Authors:   Department of Mechanical Engineering Education, Faculty of Engineering, Yogyakarta State University, Yogyakarta 55281, Indonesia, Widarto Widarto , Nurtanto Muhammad ,   Department of Mechanical Engineering Vocational Education, Faculty of Teacher Training and Education, Sultan Ageng Tirtayasa University, Banten 42117, Indonesia, Johan Arif Bintoro ,   Department of Mechanical Engineering Vocational Education, Faculty of Teacher Training and Education, Sarjanawiyata Tamansiswa University, Yogyakarta 55165, Indonesia, Primartadi Aci ,   Department of Automotive Engineering Education, Faculty of Teacher Training and Education, Muhammadiyah Purworejo University, Central Java 54111, Indonesia, Isnantyo Fajar Danur ,   Department of Civil Engineering Education, Faculty of Teacher Training and Education, Sebelas Maret University, Central Java 57126, Indonesia
Published: May 2023

Abstract: Employability Skills (ES) are a key component of prospective workers to be accepted to work in industry, especially manufacturing. However, the Employability Skills in Vocational Education Diploma (ES-VED) implementation has not been identified, and no standard pattern is in line with the manufacturing industry. The purpose of the study is to explore the perceptions of the lecturers of the student internship program coordinator at VED regarding the understanding, implementation, and strategies of employability skills. Data were collected through semi-structured interviews with five VED lecturers: Yogyakarta State University, Surakarta State University, Industrial Mechanical Engineering Academy in Solo, Semarang Polytechnic, and Subang Polytechnic. Data analysis used qualitative thematic data. The study findings reveal that employability skills are identified as software, career skills, and added value. Furthermore, employability skills consist of six components, Including Teamwork Skills (TWS), Problem-Solving Skills (PSS), Planning and Organizing Skills (POS), Management Skills and Occupational Health and Safety (MS-OHS), Initiative Skills (IEs), and Communication Skills (CnS). A strong relationship based on the Pearson CorrelationCoefficient (PCC) is Planning and Organizing Skills to Management Skills and Occupational Health and Safety of 0.852. Strengthening employability skills to the challenges of industry 4.0 is carried out through equalizing industry-based curricula, digitizing technology, developing human resources, and digitizing learning management. Keywords: employability skills, manufacturing industry, soft skills, vocational education diploma
How Do Assimilation and Accommodation Occur in The Translation Process of Representation?
Authors: SWASTİKA Galuh , NUSANTARA Toto , SUBANJİ Subanji , IRAWATİ Santi
Published: May 2023

This study aims to describe the translation process of representation in mathematics education students’ solving of mathematical problems in the form of graphs. The translation process involves four activities: unpacking the source, preliminary coordination, constructing the target, and determining equivalence. The study was conducted on 65 students who took Calculus at three different universities in East Java Province, Indonesia. Research data in the form of answers to mathematical problems, video recordings, and interviews were analyzed based on the activity of the translation process within the accommodation and assimilation framework. Based on data analysis, the characteristics of the representation translation process are obtained in three categories, namely the symbolic-algebraic translation process (SA), the verbal translation process (V), and the symbolic-conceptual translation process (SC). When “unpacking the source” and “preliminary coordination,” SA looks difficult, so it changes the equations and graphs for completion several times. V verbally smoothly performs four translational process activities. However, subject V has doubts about the graph made after reading the question back. SC uses graph equations until it finds a solution in the form of a graph. However, after reflection, SC resolves the problem with the theory of monotony. It is important for the future teacher to understand the translation process of representation, especially given the difficulty students have solving mathematical problems. Prospective teachers are expected to be able to develop meaningful learning with various forms of representation so that students can connect their concepts to problem solving.
Development and Validation of a Screen Fatigue Scale
Authors: OCAK Gürbüz , GÜNHAN Rüveysa , UZUN Ahmet Murat , KARAKUYU Akın
Published: May 2023

Due to rapid development in information and communication technologies (ICT), daily life has been digitized with increasing momentum, and the COVID-19 pandemic has accelerated this situation more than ever. Depending on these developments and the excessive use of ICT, many new concepts have emerged, including screen fatigue. To this respect, this study aims to develop a scale that determines screen fatigue among adolescents caused by excessive screen use and test the scale’s psychometric properties. The research was conducted with an exploratory sequential, mixed-method research design. In the study’s first phase, qualitative data were obtained through a literature review and focus group interviews to develop an initial item pool. Based on the qualitative data analysis, a 56-item item pool was formed. In the quantitative phase, the item pool was administered to 365 students for the exploratory factor analyses (EFA). After determining the dimensions of the scale through EFA, it was administered to 417 students for confirmatory factor analysis (CFA). Quantitative data demonstrated that the scale has satisfactorily reliable and valid. A final scale was obtained, including 24 items and four factors named behavioral, physical, affective, and cognitive symptoms of screen fatigue.