bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental verification of indirect tests for stress-crack opening curve of concrete in tension from a round robin test: application to railway sleeper elements
Authors: Sanz B. , Planas J. , Albajar L.
Published: October 2022

This paper presents experimental verification of indirect tests for the determination of the stress-crack opening curve of concrete, based on the method described in the RILEM TC 187-SOC report and submitted to ACI Committee 446 for Fracture Toughness Testing of Concrete, which relies on the standard cohesive model. In such method, a bilinear approximation of the softening curve is determined from three-point bending tests of notched specimens under crack-mouth-opening-displacement control and from tensile splitting tests, which produces good predictions of the complete crack evolution. The current work focusses on the brittleness length, which is directly related to the parameters of the linear curve defined by the first branch of the bilinear curve, and is one of the main fracture parameters of concrete, since it controls the behaviour of thin cracks. This length can be obtained from a simple version of experiments conducted up to peak load, thus, favouring its application in the industry. In particular, this work presents the results of a round-robin test carried out in collaboration with the Spanish Association of Railway Sleeper Element Manufacturers to determine the brittleness length of concrete. A specific implementation of the method has been proposed in order to perform the tests by using the facilities available in all the factories. The results of the round-robin test have been satisfactory, thus, supporting the viability of the RILEM and ACI proposals. Moreover, a method has been developed which allows the brittleness length of concrete to be determined easily in railway sleeper element factories.
Fire induced concrete spalling in combination with size effects
Authors: Klimek André , Stelzner Ludwig , Hothan Sascha , Rogge Andreas
Published: October 2022

The size effect has its origin in fracture mechanics and describes the formation as well as propagation of cracks in brittle and solid materials in dependence of the specimen size. However, the size effect in concrete spalling describes the damage behaviour on a macroscopic scale for different sized specimens in case of fire. Concrete spalling is a very complex and yet not fully understood phenomenon. To reduce the effort of fire tests to analyse the spalling behaviour of concrete mixtures, this study investigates the susceptibility to spalling for six different concrete mixtures and three specimen sizes. The sizes were divided in full scale slabs (1.8 m × 1.2 m × 0.3 m), intermediate scale cuboids (0.6 m × 0.6 m × 0.3 m) and small scale cylinders (Ø0.15 m × 0.3 m). For this purpose, a novel test set-up was built to test six intermediate scale or twelve small scale specimens simultaneously to ensure a similar heating regime for every specimen. All specimens were fire exposed on one side and remained unrestrained. A size effect occurred for four of the six concrete mixtures. Compared to the full scale specimens the spalling was reduced significantly for all smaller specimen sizes. Additionally, spalling did not occur for the small scale specimens. The results show that the specimen size is an essential parameter to investigate the susceptibility to spalling of a concrete mixture. For future investigations the testing conditions must be adjusted for the intermediate scale specimens to recreate the conditions of the slabs.
Comportamiento de la posición del cóndilo mandibular con el aumento de la dimensión vertical oclusal en pacientes tratados con ortodoncia
Authors: Ojeda Muñoz Carlos Augusto , Unigarro Marcillo Marcelo Alejandro , Rosero Ruíz Felipe , Salas Zambrano Andrés
Published: October 2022

Asociando el procedimiento de alteración en dimensión vertical oclusal (DVO), a problemas de dolor muscular, síntomas de trastornos temporomandibulares, dolor de cabeza y bruxismo, se evalúa el comportamiento de la articulación temporomandibular (ATM), con aumento de la DVO en pacientes con ortodoncia: efectuando un Scoping Review, con bases de datos Medline (Pubmed), Scopus, Science Direct y BVS; Términos de búsqueda: “Temporomandibular Joint", "Vertical Dimension", "Dental Occlusion" y "Orthodontics". los artículos seleccionados, publicaciones adicionales y búsqueda manual; fueron 3667 artículos, 41 preseleccionados, y 9 analizados. Se busco evidencia científica en cambios de posición condilar, uso técnicas de levante, y respuesta a la pregunta sobre comportamiento de la ATM con el aumento de DVO. La ayuda diagnostica más utilizada para evaluación de posición condilar fue la tomografía computarizada de haz cónico.  La literatura encontrada no reporto cambios estadísticamente significativos de posición condilar en sentido anteroposterior y vertical, ni en relación y oclusión céntrica, ni en volumen condilar. Dos reportes de casos registraron cambios estadísticamente significativos en la posición condilar en el espacio articular, Efectos del aumento DVO sobre la ATM, se basaron principalmente en reportes de caso y estudios de observación descriptiva, superando ensayos clínicos controlados. No se reportó evidencia suficiente sobre efectos del aumento de la DVO en la ATM con una débil evidencia disponible, indicando rápida capacidad en adaptación de ATM a cambios moderados en DVO. No se indicaron cambios en ATM y posición condilar por alteración permanente de DVO.

PALABRAS CLAVES: Cóndilo mandibular, dimensión vertical oclusal, articulación temporomandibular, oclusión dental y ortodoncia.
First Demonstration of Nitrate Reduction Using Woodchip Bioreactor Technology at a Small Community Wastewater Treatment Plant
Authors: K Suozzo , C Navitsky , J Sutherland
Published: October 2022

Eutrophication can be accelerated by excess amounts of reactive Nitrogen (Nr) entering aquatic ecosystems. Historically, the circa 1960 Bolton Wastewater Treatment Plant, Warren County, New York (USA), discharged plant effluent for final polishing to natural sand infiltration beds, which entered the groundwater and then tributaries to Lake George. The absence of a denitrification unit process at the Bolton facility resulted in the construction of a woodchip bioreactor and a corresponding demonstration project to evaluate denitrification of plant effluent prior to sand bed discharge. This Denitrifying Bioreactor (DNBR) installation was the first real time, in-situ application of this “green technology” for a small wastewater treatment plant world-wide. The Bolton DNBR reduced nitrate-nitrogen concentrations in the tertiary effluent by 38% when compared with untreated tertiary effluent. Here we show that wastewater denitrification using this passive, environmentally compatible technology offers a low-cost, effective tool for small community wastewater treatment plants where excess Nr is problematic. Combined with diligent plant operator attention, this innovative treatment should move beyond concept into full scale field applications for other small community wastewater treatment plants globally, using lessons learned at the Bolton facility.
Review of Zen Terror in Prewar Japan. Portrait of an Assassin by Brian Daizen Victoria
Authors: Green Ronald S
Published: October 2022

A review of Zen Terror in Prewar Japan. Portrait of an Assassin by Brian Daizen Victoria
The clitic string as a Pair Merge sequence
Authors: Manzini Maria Rita , Pescarini Diego
Published: October 2022

We argue that clitics are structured by Pair Merge, rather than by Set Merge. This contrasts with classical approaches treating the head status of clitics as derived from a fundamentally phrasal syntax. We show that different structures of merger for clitics and phrasal arguments (including full pronouns) can explain well-known empirical differences that otherwise need to be stipulated or derived via extra-syntactic—viz. morphological—mechanisms. This view of cliticization seems to run into immediate problems once we move away from object clitics in finite declarative sentences in Italian or French and tackle slightly less familiar linguistic systems that allow interpolation, enclisis (inversion), and allow clitic sequences to split (object vs. subject clitics). We argue that the above phenomena receive a principled explanation under the assumption that clitics are pair merged with different phase heads.
Onomasiological cyclicity in the expression of concessive relations
Authors: Longhin Sanderléia Roberta
Published: October 2022

In this paper, I discuss processes of language change which have led to the constitution of concessive connectives in two genetically related languages, Latin and Portuguese. I focus on the diachronic developments of the Latin licet, and of bem que and embora, from Portuguese, whose sources are etymologically different: the modal verb licere, the emphatic adverb bem and the volitive adverbial phrase em boa hora. The main purpose is to investigate whether the three phenomena could be taken as stages of an onomasiological cycle of a semantic-pragmatic nature, as proposed by Hansen (2018). Based on studies in Latin linguistics about licet and on the analysis of the grammaticalization processes for bem que and embora in an interactional diachronic sample, I shall argue that, in the three instances of evolution, there has been a stage in which licet, bem and embora have acted as assent markers, and that this usage, in combination with contextual traits, has been crucial to sustain the inferential processes which enabled the concessive interpretation. The similar source and target meanings and the continuity of inferential processes over time also suggest that this is a recurrent path of renewal of the concessive meaning which displays a cyclicity pattern.
Analyzing Jurkat T Cell Viability and T Cell Receptor Signaling in Tumor Microenvironments
Authors: Hanson Rylee , Jack Treml Jack Treml , Logan Randall
Published: October 2022

The immune system is responsible not only for protection against foreign invaders (e.g., viruses and bacteria) but also against abnormal cell growth (e.g., cancer). Although the initiating causes of cancer are wide-ranging, one universal characteristic common to all is that healthy cells mutate in ways that dysregulate their growth and survival. Unchecked, these cells may grow and mutate uncontrollably, making immunosurveillance vital to maintaining a healthy organism. T cells recognize foreign antigens via their T Cell Receptors (TCRs). A sampling of all proteins made by the cell is presented to T cells in the context of Major Histocompatibility Complexes (MHCs) present on all nucleated cells. A successful interaction between a T cell and an MHC bearing a non-self peptide will initiate an immune response including TCR signaling and proliferation. Cells that avoid this recognition can grow into tumors. Interestingly, these tumors have been observed to exist in acidic microenvironments. One concern is that the acidic nature of the tumor microenvironment could negatively impact the interaction between the T cell and MHC molecule thereby reducing the efficacy of an immune response. We used Jurkat T cells as a model T cell line to evaluate the survival and immune signaling of T cells under low pH environments. We observed less total phosphorylation in the acidic conditions, however, the relative increase in phosphorylation above background was much greater under acidic conditions. These results indicate a qualitative change in T cells activation signals when exposed to an acidic environment.
Analysis of the Anticancer Potential of Green Tea’s EGCG Component to Inhibit Immortal Cells
Authors: Stillwell Allayah , Treml Jack , Logan Randall
Published: October 2022

Green tea has a high abundance of catechins and other antioxidants found organically within its composition. In recent studies, a polyphenolic catechin, referred to as EGCG, has shown the potential to promote advancements in the development of non-harmful cancer treatments. Several experimental questions were explored regarding EGCG, including the concentration of EGCG present in commercial green teas, its anticancer potency, and EGCG’s potential contributions to cell cycle arrest. Briefly, a green tea extract was prepared utilizing ground green tea leaves and a polar extraction method. The fluorescent properties of EGCG were exploited to quantitate its concentration in green tea preparations in comparison to a purified EGCG standard. The anticancer potency of EGCG was then assessed by exposing HeLa (cancer cells) and MRC-5 (primary) cells to green tea extract- containing the EGCG component- for 24 hrs. The cells were evaluated for viability, suggesting that higher concentrations of extract exerted specificity toward cancer cells over the control model. Lastly, HCT-116 cancer cells were evaluated for cell cycle arrest following drug treatment. Results indicated that green tea extract imposed a cytotoxic effect selective to cancer cells while avoiding cytotoxicity to a primary cell model. In addition, treated cancer cells experienced an increase in the cell population at the G1 phase, indicating a halt in the cell cycle. This hypothesis was supported by an observed decrease in cell population in the S phase. These results show the potential for green tea extracts containing EGCG to be potential components in cancer therapeutics and/or preventatives.
TIGIT: A Novel Entry in NK Cell Regulation
Authors: Khatri Sophia
Published: October 2022

While TIGIT’s immunoregulatory role in T Cells has been described, the mechanisms through which TIGIT modulates NK Cell activity has remained elusive. Recent research by Staniesky et al. reveals that the expression of TIGIT by NK cells inhibits the lysis of PVR and PVRL1-expressing target cells in an ITIM-dependent manner.
Fatores psicossociais associados ao Estilo de Vida Saudável em Servidores Públicos Universitários
Authors: Atz Mariana Valls , Remor Eduardo
Published: October 2022

INTRODUÇÃO: No âmbito da saúde do trabalhador, é necessária a compreensão de quais aspectos influenciam a adoção de um estilo de vida saudável. OBJETIVO: Investigar se estresse relacionado ao trabalho, lócus de controle da saúde e autopercepção de saúde estão associados com estilo de vida saudável em servidores de uma instituição federal de ensino superior. MÉTODO: Trata-se de um estudo transversal por meio de questionário online, de amostra não-probabilística. Participaram deste estudo 898 servidores. Foram utilizados os seguintes instrumentos: questionário com características sociodemográficas e laborais; FANTASTIC Lifestyle Checklist (estilo de vida); Multidimensional Health Locus of Control Scale (lócus de controle da saúde); Health Safety Executive - Indicator Tool (avaliação dos riscos psicossociais do trabalho); e SF-12 Short-Form Health Survey - 12 (saúde física e mental percebida). A amostra foi dividida entre aqueles que apresentaram Perfil Saudável e Perfil de Risco em estilo de vida. Para identificar as variáveis com maior associação com o Perfil Saudável de estilo de vida foi empregado o modelo de Regressão Logística Múltipla Binária. RESULTADOS: apontou-se que menor estresse relacionado ao trabalho, as dimensões Acaso e Outros Poderosos do lócus de controle da saúde, melhor autopercepção em saúde física e mental, e maior escolaridade estão associados com estilo de vida saudável. DISCUSSÃO: O estudo contribui com a literatura ao apresentar fatores que podem ter efeitos sobre o estilo de vida de servidores públicos em contexto universitário e ao oferecer dados que dialogam com uma perspectiva biopsicossocial da saúde do trabalhador.
Hidden Neurological Deaths Epidemic’ 21st Century: Where is Preventative Medicine?
Authors: Colin Pritchard , Anne Silk , Lars Hansen
Published: October 2022

This brief review of a `hidden epidemic’ of neurological deaths in the Major Western Countries (MWC), based on statistically controlled in well-established studies [1,2] indicates that there is no recognized Preventative Medicine’ approach.
Body composition assessment in patients with spinal cord injury by bioimpedance
Authors: Mariana Buratti Mascarenhas , Nicolli S Scarabelli , Cinthia Bittar , Felipe R Mascarenhas , Orcizo F Silvestre , Alberto Cliquet
Published: October 2022

Background: Individuals with spinal cord injury develop alterations in the metabolism of carbohydrates and lipids, chronic inflammation, abnormal control of glycemia, as well as loss of lean mass, and increased adiposity, these being some risk factors for the development of diseases and decreased quality of life. This research aimed to investigate the body composition during a treatment protocol with NMES in a spinal cord injured population. Methods: An initial bioimpedance evaluation using Biodynamics 310e was performed on 19 spinal cord injury patients. During the following 4 months, they received neuromuscular stimulation. The individuals ended the clinic once a week and performed NMES for 45 min, 20 min on quadriceps, and 15 min on peroneal nerve, on both legs with a frequency in the range of 18 to 25 Hz. A new bioimpedance test was performed after this period. Results: For data analysis, a 5% significance level was considered. There were statistically significant gains in lean mass with p= 0.0001 and a decrease in bio-strength with p= 0.0457. There was a loss of body fat, but not significant. Conclusion: Individuals with spinal cord injury showed measurable body composition changes during a four-month neuromuscular electrical stimulation treatment.
A clinical case of a surgical treatment of complicated cataract in a patient with Hall–Hittner syndrome
Authors: Grigoryeva Yulia V. , Kopaev Sergey U. , Obraztsova Maria R. , Khliyan Kristina G.
Published: October 2022

Background: Variants of the CHD7 gene found in the OMIM 608892 genomic material are present in 8395% of patients suffering from the CHARGE syndrome. The aim of this report is to evaluate the clinical and functional results of cataract phacoemulsification with implantation of a toric intraocular lens in a patient with a very rare pathology HallHittner syndrome. Clinical case description: Under observation was patient V., who successfully underwent cataract phacoemulsification on the right eye with implantation of an intraocular lens for complicated cataract against the background of combined congenital eye pathology confirmed by the diagnostic data before and after the surgery. The optimal visual functions were reached after the successful surgical treatment. The patient was subjectively satisfied with the restored visual functions in the right eye. Conclusion: The clinical case demonstrates a successful implementation of cataract phacoemulsification with implantation of a toric intraocular lens in a patient diagnosed with complicated cataract against the background of combined congenital eye pathology, which suggests the possibility of a surgical treatment for such patients.
Aspergillosis of the brain: diagnostic difficulties. Case report
Authors: Verbakh Tatyana E. , Kicherova Oksana A. , Reihert Lyudmila I. , Ostapchuk Ekaterina S.
Published: October 2022

Background: Neuroaspergillosis has nonspecific clinical manifestations and a severe course. Cases of central nervous system aspergillosis are becoming more frequent. Its lifetime diagnosis is very difficult. At the same time, a timely diagnosis makes it possible to conduct an adequate specific therapy and save the patient's life.
Clinical case description: We report a clinical case of a patient with a lethal damage to the brain by filamentous fungi, who did not have the risk factors described in the literature human immunodeficiency virus (HIV), neutropenia, organ and tissue transplantation, long therapy with immunosuppressive drugs or corticosteroids.
Conclusion: One needs to consider a possibility of this pathology in patients even in the absence of a fever and immunodeficiency conditions. A specific study of biological fluids for the presence of the galactomannan antigen may allow one to establish a timely correct diagnosis and apply an adequate treatment.
Changes in the intestinal microbiota as a predictor of the development of colorectal cancer in the elderly persons: a case study
Authors: Lagutina Svetlana N. , Zuikova Anna A. , Dobrynina Irina S. , Chizhkov Pavel A. , Skuratova Olga S.
Published: October 2022

Background: Currently, there is an increase in cancer among the elderly. Despite the obvious advances in the healthcare related to the diagnosis of the disease and its treatment, oncopathology occupies a high position in the structure of the overall morbidity. Clinical case description: Patient T., 62 years old, came to an internist with the complaints of constant pulling pains in the lower abdomen, a stool disorder in the form of alternating constipation and diarrhea, presence of blood in the stool over the past 6 months, a weight loss of 8 kg over the past 4 months. She was examined independently two years ago, when the disorders of the gastrointestinal tract appeared for the first time, which she associated with constant stressful situations at work. According to the study results, no significant deviations were found. The patient also underwent 16s-RNA sequencing of the intestinal microbiome, which revealed significant changes in many clusters of bacteria (a decrease in the quantitative composition of Lactobacterium, Bifidobacterium, Akkermansia, Faecalibacterium, which is the main representative of the normal intestinal flora, that may indicate a decrease in the protective barrier function of the colonic mucosa, an increase in Fusobacterium, as well as other representatives of the pathogenic flora). Presently, within the framework of laboratory and instrumental studies, the following diagnosis was established: "Malignant formation of the colon (colorectal cancer). T3M0N1". A repeated study of the intestinal microbiota was carried out, according to the results of which an increase in Fusobacterium up to 7.5% was observed, along with a sharp decrease in the representatives of the normoflora (1%). Conclusion: Changes in various bacterial clusters of the intestinal microbiota can serve as an early marker for the verification of malignant neoplasms of the large intestine. Determining the amount of Fusobacterium in the intestinal microbiome can be an indicator of the first diagnostic line, which helps to identify the pathological process at the stage of precancer, take timely therapeutic measures, improve the quality of life, and increase its longevity.
The Influence of Reading Ability on the Results of the Students' Presentation in German
Authors: Putri Diah Ayu Sukma Wahyuning , Kurniawan Deddy
Published: October 2022

The aim of this study is to describe the reading ability of the students in Freier Vortrag course at German Department State University of Malang and the influence of reading ability on the students' presentation results. Based on the data collection, the average reading ability is 58 and the presentation result is 75. The independent sample test gives a sig. rating 0.000 less than 0.05. It means that Ha is accepted, "reading ability has an influence on the students' presentation results in Freier Vortrag course at German Department State University of Malang". The correlation analysis result shows significant contribution of the X variable on the Y variable (64.4 percent) and the r value recorded is 0.802 which proves significantly strong correlation between variables.
Grammatical Barriers in Writing A German Essay: A Case Study of Secondary High School Students
Authors: Melanda Ester Sri , Margaretta Juliyanti , Alamsyah Riza
Published: October 2022

Abstract : This research was conducted to identify the grammatical barriers most often carried out by high school students. This type of research is a case study research to reveal the grammatical errors obtained instead of writing essays. These researchers uses a qualitative descriptive study. The data in this study are the results of German sentences written by 10 students in an essay, which then identified and classified the error Grammatically reviewed by Morphology and Syntax. The types of grammar errors analyzed specifically: capitalization, conjugation, verbposition , personalpronomen and article.
Use of Rosetta Stone Application as Online Learning Media in Learning German for Tenth-Graders of Language Studies Major at SMA Laboratorium UM
Authors: Rimeldi Cessy Nooraeni , Kurniawan Deddy
Published: October 2022

The research aims to depict students' activities using Rosetta Stone as the online learning media in learning German at SMA Laboratorium UM. The study was also looking for students' responses towards the use of the application. The research design used in this research was descriptive qualitative. The participants of the research consist of 22 students of tenth-graders majoring in language studies. The researcher obtained the data from observation and interviews. The researcher did the investigation to learn the activity of using the application in online learning German. The researcher interviewed the students to get responses from the students using the application as their online learning media. The result revealed that the application gave new exciting experiences in learning language, mainly German. The research had shown that the students actively engaged and gave a positive attitude towards the learning and teaching process, with the result that fostering learning independence. Students were able to access the materials in the application, and they understood the materials given comprehensively. Following the learning activity, the goal of the research was well achieved.
The Problems of Using the Zoom Cloud Meeting Application as an Online Learning Facility for Class X German at SMA Laboratorium UM
Authors: Riyadi Gloria Vincentia , Ardiyani Dewi Kartika
Published: October 2022

The purpose of this study was to describe student responses in learning activities, the problems that students facing, and the factors causing the problem to the online learning process using the Zoom Cloud Meeting application. The data sources for this study were 29 German high school seniors at SMA LABORATORIUM UM who were at the language level equivalent to A1 GER. Data obtained are from observation, closed questionnaires, and interviews, with the type of qualitative descriptive research. The results of the study indicate that several problems have the potential to hinder the online learning process of senior high school students in German language classes, such as technical obstacles to using, technical internet connections, and the other problems that limit the access of students to the full-featured zoom application that hinders the learning process from running optimally.
Translation of Humor Text in German to Indonesian in the Film Subtitle ER IST WIEDER DA
Authors: Setyaningrum Kartika Dewi , Rosyidah Rosyidah
Published: October 2022

Translating of humour text in the audiovisual product is an uneasy challenge for the translator. The translator should act as a connector between the original text of the source language (SL) and the audiences of targeted language (TL) to convey the message and information in the film subtitle correctly without eliminating the humorous impact. This study is aimed to identify and describe the translation techniques in the humor text of German film titled Er ist wieder da. The translation is classified by using the techniques offered by Molina and Albir. This is a qualitative study that focuses on translation techniques of the humor text in the subtitle of film Er ist wieder da as the material object of this study. The study found that translator uses 11 techniques that consist of adaptation, borrowing, established equivalent, generalization, linguistic amplification, linguistic compression, literal translation, modulation, particularization, reduction, and transposition.  Keywords: subtitle, humour, translation techniques, Molina and Albir
The Development of Flipbook-based E-module with “FAMILIE” Theme for Students of 11st Grade SMA
Authors: Wahyuningtyas Novie Catur , Rosyidah Rosyidah
Published: October 2022

The objective of this study is to develop e-module teaching material based on flipbook with the topic of “Familie”.This study is quantitative and qualitative research with an instrument of questionnaire. Based on the validation results, the e-module was rated 89% by media expert and 92% by the material expert. Assessment from the expert teams was included in very valid category. In addition, assessment of students to flipbook e-module obtained average score of 89% with very good criteria. Based on the results of research then it can be concluded that e-module based on flipbook is feasible to be used as an independent teaching material by students of 11th SMAN 1 Gondanglegi. E-module based on flipbook is very interesting and easy to used to help students in the learning process.
Development of Multimedia-Based Online UKBM KD 3.1 Wohnung Material for Class XI
Authors: Rahma Azizah , Ardiyani Dewi Kartika
Published: October 2022

Tujuan dari dilakukannya penelitian dan pengembangan ini adalah untuk mendeskripsikan proses pembuatan UKBM daring berbasis multimedia serta mendeskripsikan kualitas dari UKBM yang telah dihasilkan. Pengembangan ini dilakukan berdasarkan kebutuhan siswa terhadap bahan ajar yang sesuai untuk pembelajaran mandiri. UKBM dikembangkan berdasarkan KD 3.1 dan 4.1 dengan mengambil materi Wohnung yang diperuntukkan untuk siswa kelas XI. Dalam hal ini, penelitian dan pengembangan menggunakan model pengembangan ADDIE yang terdiri dari lima tahap, yaitu: (1) Analyze, (2) Design, (3) Development, (4) Implementation, dan (5) Evaluation. Dari data yang diperoleh dapat disimpulkan jika UKBM berkualitas baik, layak digunakan, dan menarik untuk digunakan sebagai pendamping belajar mandiri siswa. Sesuai dengan penjelasan Karademir dkk., (2019), bahwa bahan ajar digital merupakan prangkat yang efektif baik untuk pembelajaran di dalam kelas ataupun diluar kelas.
Influence of jabbalabab.com Site Media as a German Online Learning Support on Learning Motivation of XI Grade Students at SMA Negeri 7 Malang
Authors: Nabilah Azizah Rizki , Kurniawan Deddy
Published: October 2022

Knowing the influence of the uses of Jabbalab.com site media as a German online learning support on learning motivation of XI grade students of SMA Negeri 7 Malang is this researchs aim. T Quasi-experimental method used to identify the impact between each variables, which the result will answer whether Ha or H0 accepted or not. In this research, datas obtained from the results of pre-questionnaire and post-questionnaire. Finally, the result of this research is Ha was accepted, which sounds that there is an influence of the uses of Jabbalab.com site media as a German online learning support on learning motivation of XI grade students of SMA Negeri 7 Malang.
"Big Data" and personalized training
Authors: Минязова Е.Р.
Published: October 2022

Рассмотрена значимость анализа «больших данных» для современного образования, возможности работы с ними на примере функционирования образовательной платформы. Показаны перспективы применения технологий big data в персонализированном онлайн-обучении, а также риски применения анализа «больших данных».

The article describes the importance of big data analysis for modern education. The possibilities of working with big data on the example of educational platform have been considered. Prospects of big data technologies in personalized online learning, as well as risks of big data analysis are considered.
An Exploratory Study of ‘Student Success’ with Local University Students: The Case Study of “A” University
Authors:   The Korea Association of Yeolin Education, Han Songie , Cho Sungbum , Kwak Eunju
Published: October 2022

The purpose of this study is to define the concept of ‘student success’ from a contextual approach by exploring the aspects and components of successful university life in the context of local university students. For this purpose, this study analyzed the reflective papers written by 51 students of “A” university in Chung-Cheong Province. The study found six themes of the concept of 'student success': 1) participating actively in college experiences, 2) development of self-concept and setting their direction of life, 3) wide and deep relationships in college, 4) strengthening subject-matter knowledge, 5) career development for the future, and 6) attitude of self-directed life. Based on this, this study contributes to expanding the concept of student success by examining the concept of ‘student success’ in the context of local university students. In addition, it suggests the need for supportive strategies for student success.
The Effects of Young Children's Communication Abilities and Self-Regulation on Peer Play Behaviors
Authors:   The Korea Association of Yeolin Education, Kim Youngmin , Shin Hyunae , Kim Wheetai
Published: October 2022

The main purpose of this study was to investigate the effects of infants' communication abilities and self-regulation on peer play behavior. To this study, data was collected from 321 infants and analyzed. The results of this study are as follows. First, the infant's communication abilities and self-regulation showed a positive correlation with the play interaction of the infant's peer play behavior, but a negative correlation with the play interference and play disconnection of the infant's peer play behavior. In addition, it was found that the communication abilities of infants had a positive correlation with self-regulation. Second, among communication skills, communication with teachers was the most influential predictor of play interaction of children's peer play behavior, self-regulation was the most influential predictor of play interference, and communication skills with teachers were the most influential predictor of play break. These results show that among infants' communication skills, communication with teachers and behavior inhibition of self-regulation have an important influence on play behavior with peers.
An Analysis of Longitudinal Relationships between Discussion/Debate Activities and Creativity
Authors:   The Korea Association of Yeolin Education, Oh Huijeong
Published: October 2022

This study analyzed the longitudinal relationship between discussion/debate activities and creativity using data from the 2nd and 5th years of the Busan Education Longitudinal Study (BELS) 2016. Descriptive statistics and correlation analysis for each variable and autoregressive cross delay models were analyzed using longitudinal data for 4 years from 5th grade to 2nd grade of middle school of 2,359 students in Busan. As a result, first, there was a positive correlation between discussion/debate activities and creativity. Second, discussion/debate activities and creativity were stable over time. Third, the discussion/debate activity for the previous time point had a significant positive effect on the creativity for the next time, and it was found that the creativity for the previous time point also had a significant positive effect on the discussion/debate activity for the next time point. Thus, when the longitudinal relationship between discussion/debate activity and creativity was analyzed, it was found that there was a positive influence relationship in both directions.
Based on this, the following were suggested. First, it is necessary to continuously present various types of discussion/debate activities to students in the educational field. Also, it is necessary to develop and disseminate various teaching and learning strategies for developing students' abilities. Second, it is necessary to maximize the effect by strengthening the virtuous cycle structure based on the continuous positive influence between discussion/debate activities and creativity. In addition, in the development and dissemination of various teaching and learning strategies, it should be possible to continuously strengthen their virtuous cycle structure and increase its effectiveness.
Good schools or good students?: evidence on school effects from universal random assignment of students to high schools
Authors: Cristia Julian P. , Bastos Paulo , Beomsoo Kim , Malamud Ofer
Published: October 2022

How much do schools differ in their effectiveness? Recent studies that seek to answer this question account for student sorting using random assignment generated by central allocation mechanisms or oversubscribed schools. However, the resulting estimates, while causal, may also reflect peer effects due to differences in peer quality of non-randomized students. We exploit universal random assignment of students to high schools in certain areas of South Korea to provide estimates of school effects that may better reflect the effects of school practices. We find significant effects of schools on scores in high-stakes college entrance exams: a 1 standard deviation increase in school quality leads to 0.06-0.08 standard deviations higher average academic achievement in Korean and English languages. Analogous estimates from areas of South Korea that do not use random assignment, and therefore include the effects of student sorting and peer effects, are substantially higher.
Los programas de tutorías en América Latina y el Caribe: nuevas oportunidades para la región
Authors: Almeyda Gonzalo , Gil Deza Lourdes , Vinacur Tamara , Zoido Pablo
Published: October 2022

Presenta un relevamiento sobre las características de los Programas de Tutorías en América Latina, con el fin de obtener información actualizada que pueda orientar la toma de decisiones para el fortalecimiento y la mejora de los aprendizajes.
Digging Deep: Resource Exploitation and Higher Education
Authors: Balza Lenin , De Los Rios Camilo , Rivera Nathaly M.
Published: October 2022

Do resource-extraction booms crowd out postsecondary education? We explore this question by examining the higher education-related decisions of Chilean high school graduates during the 2000s commodities boom. We find mineral extraction increases a person's likelihood of enrolling in postsecondary technical education while reducing the likelihood of completing a four-year professional degree program. Importantly, effects are heterogeneous across economic backgrounds. The impact on college dropouts is primarily present among students that graduated from public high schools, which generally cater to low-income groups. Our findings show that natural resources may affect human capital accumulation differently across income groups in resource-rich economies.
Concept of Psychopathic Positive-Adjustment Traits: A Brief Review of Theory and Research
Authors: Nowakowski Krzysztof
Published: October 2022

Although psychopathy is commonly regarded as a disorder closely related to criminality, there is also increasing attention paid to its non-criminal form and the adaptive features of psychopathic personality. The aim of this article is to introduce the concept of psychopathic traits of good adaptation, both in light of the theoretical foundations of the construct and the empirical data. The article demonstrates the presence of such traits in classical and contemporary models of psychopathy, in the evolutionary approach, and in relation to the division into primary and secondary psychopathy. Furthermore, it reviews the studies on the prevalence of adaptive features of psychopathy in different professional groups. The attempt to operationalize the construct of psychopathic traits of good adaptation—the Durand Adaptive Psychopathic Traits Questionnaire (Durand, 2019)—is also discussed. Finally, the limitations of using the concept of adaptive traits of psychopathy are analysed.
On the compatibility of surgical implants of bioresorbable magnesium alloys with medical devices of titanium alloys
Authors:   Togliatti State University, Myagkikh P. N. , Merson E. D. ,   Togliatti State University, Poluyanov V. A. ,   Togliatti State University, Merson D. L. ,   Togliatti State University, Begun M. E. ,   Togliatti State University
Published: October 2022

Self-resorbable implants made of magnesium alloys, unlike the traditional implants made of titanium alloys and stainless steels, have the ability to completely dissolve in the human body, which makes it possible to eliminate the need for a recurrent operation to extract them. The issue of the possibility of using magnesium implants in the combination with products made of titanium alloys remains insufficiently studied at the moment. At the same time, it is widely known that the elements such as titanium and iron, with a potential more positive than magnesium, have a disastrous influence on the corrosion of magnesium alloys, since magnesium dissolves much faster due to the galvanic effect. This work is aimed to determine how the distance to a titanium implant affects the corrosion rate of a ZX10 magnesium alloy sample with an ultra-fine grain structure. As it is an issue of medical application, the authors carried out the corrosion tests within the conditions simulating the human body conditions: the corrosion medium circulation and keeping temperature within 37±1 °C. The authors used physiological solution as a corrosion medium. During corrosion testing, a titanium implant was placed in three, six, and twelve centimeters from the magnesium alloy sample; and the control tests were also carried out without a titanium implant. According to the obtained data, at a distance of 3 cm, the galvanic effect between titanium and magnesium manifests itself strongly, increasing the corrosion rate and the size of corrosion damage, but at a distance of 6 cm, the titanium implant does not have a visible effect on the corrosion of a sample.
The study of the effect of parameters of the mode of copper friction stir welding on the mechanical properties and electrical conductivity of welded joints
Authors:   Ufa State Aviation Technical University, Atroshchenko V. V. , Selivanov A. S. ,   Limited Liability Company “Attestation Center SvarkaTechService”, Lobachev V. S. ,   Limited Liability Company “Attestation Center SvarkaTechService”, Logachev Yu. V. ,   Ufa State Aviation Technical University, Sadrislamov A. R. ,   Ufa State Aviation Technical University
Published: October 2022

Copper is widely used when producing current-conducting parts, basically the electrotechnical power equipment buses. Traditional ways of welding copper become complicated because of high thermal conductivity, fluidity, significant oxidation at fusing temperature, and susceptibility. The application of the solid-phase welding methods, a prominent representative of which is friction stir welding (FSW), is one of the ways to solve problems when welding copper. The paper presents the experimental study of the influence of a tool working part shape and the welding mode parameters: welding rate, tool rotation frequency, and tool dip angle – on the possibility of the appearance of defects in welded joints of M1 copper plates of 5 mm in thickness produced by FSW. The paper contains the results of mechanical tests on static tension and bending of welded joints with a tunnel defect and without it. Welded joints with a tunnel defect showed a decrease in mechanical properties level: the value of ultimate tensile strength at stretching is lower by 33 %, and the specific elongation is lower by 8 % than ones of a joint without defects. The authors specify some factors influencing the appearance of defects at FSW: the welding rate, tool rotation frequency, tool working part construction, tool dip angle, strength and depth of immersion, pin displacement, blank thickness, and grip conditions. The study identified that the application of a tool with a concave surface taper shoulder allows producing welded joints without external and internal defects. Based on data obtained during the experimental research, the authors determined the welding modes, which makes it possible to produce welded joints with the electrical resistance value at the level of a parent metal: tool rotation frequency is 1250 rpm, welding rate is 25 mm/min, and tool immersion depth is no less than 0.41 mm.
Modeling of the dislocation electroplastic effect in a single crystal using the molecular dynamics method
Authors:   Ufa State Aviation Technical University, Bryzgalov V. A. , Dmitriev S. V. ,   Institute of Physics of Molecules and Crystals of Ufa Federal Research Center of the Russian Academy of Sciences, Korznikova E. A. ,   Ufa State Aviation Technical University, Bebikhov Yu. V. ,   Polytechnic Institute (branch) of M.K. Ammosov North-Eastern Federal University in Mirny
Published: October 2022

The electro-plastic effect is a decrease in the resistance of metal crystals to deformation under the influence of a high-density pulsed electric current. Applying this effect allows deformation processing of relatively brittle metals without a sharp increase in temperature while reducing the probability of temperature negatively affecting the material. The paper discusses the influence of the electro-plastic effect on the change in the deforming force and the dislocations dynamics for a two-dimensional single crystal model based on the molecular dynamics method using the Morse potential. The authors propose a model implementing the electro-plastic effect by increasing the total kinetic energy of the system not uniformly over the entire crystal volume but depending on the potential energy of atoms. It is accepted that as a result of the electric current pulse traveling, the atom’s kinetic energy increases proportionally to the third degree of their potential energy. Atoms near defects have higher potential energy; therefore, the temperature will grow to a greater extent in the areas of defects, increasing their mobility. The authors simulated the motion of dislocations under the influence of shear stresses and temperature, considering the electric current pulse effect on the system. The paper describes the dependence of yield strength on temperature without taking into account the electro-plastic effect and then with it. The authors plotted the graphs of the dependence of the system’s kinetic energy on the frequency and the power of current pulses. The study shows that the electro-plastic effect sharply reduces the yield strength of a crystal, increasing the temperature in the system. It is caused by the fact that, besides general heating, the system is subjected to local heating of atoms near defects, which facilitates their motion.