bluuebunny/crossref_metadata_2025 huggingface dataset:
The Development and Testing of Interactive Multimedia Learning Materials for Teaching and Learning of Tumbuk Kalang Music Ensemble in Formal Educational Institutions
Authors: Et.al Mohd.NizamNasrifan
Published: April 2021

Tumbuk Kalang music Ensemble is a genre of traditional Malay music that has its own historical background and presentation patterns. This research was conducted due to the urge to understand the culture of music and singing heritage, particularly Tumbuk Kalang music Ensemble which has become the heritage for Malays in Negeri Sembilan. It is a form of culture studied by the Malay community of Negeri Sembilan from generation to generation informally or non-formally. It has started to be forgotten among various behavioral changes of the community which occur according to the development of times. Therefore, this research is a framework that examined the techniques and aesthetic aspects of Tumbuk Kalang music Ensemble and is structured with the knowledge of music education which resulted in developing interactive multimedia materials used in the teaching and learning in formal educational institutions. This research involved quantitative and qualitative methods using questionnaire and a semi-structured interview technique to collect data and thus presented through descriptive -analysis method. An interactive multimedia and learning material for Tumbuk Kalang Music ensemble has been developed and evaluated for its suitability to be used in formal educational institutions. The research findings through feedbacks from teachers', coaches and students revealed that these teaching and learning materials have confirmed a high level of applicability and suitability as teaching and learning materials for Tumbuk Kalang Music ensemble of Negeri Sembilan in formal educational institutions.
The Knowledge of Geography Trainee Teachers on the Use of I-Think Thinking Maps in Learning and Facilitation (PdPc) in Schools
Authors: Et.al Fiurine Minsin
Published: April 2021

This article aims to identify the knowledge of Geography trainee teachers in the use of i-Think thinking maps in Learning and Facilitation (PdPc) in schools during their teaching practice. This study used the in-depth interviews method as a research instrument and primer data collected. Respondents consisted of 25 Geography trainee teachers who are currently studying for the sixth and seventh semesters but have been in the first phase of teaching practice. The data were collected by recording audio of each interview session conducted by the researcher with 25 respondents and transcribed in Microsoft Word and then categorized into sections and reviewed by the researcher to see the answers provided more clearly. The results of this study found that Geography trainee teachers' knowledge of i-Think thinking maps such as the meaning, type, function, and how to apply i-Think thinking maps in PdPc is moderate. This due to the lack of exposure and experience to use i-Think thinking maps either in their learning or in teaching practice. This study implies that there is a growing awareness among Geography teachers in enhancing their knowledge of the use of I-Think thinking maps. This will help the trainee teachers to apply it according to the topics to be taught when they become real teachers in future.
Evaluating Game-Playing Activities of a MOBA Game with Gameplay Experience Instruments
Authors: Et.al Maizatul Hayati Mohamad Yatim
Published: April 2021

This article reports the findings of a study that aimed to evaluate gamers’ experiences in playing MOBA and DOTA2 games using gameplayexperience instruments. This study was based on a qualitative approach involving interviews and observations. The study sample consisted of 10 participants who were divided into two teams comprising five players who competed with one another in the best of five matches. Data collection through observations was performed by video recording gamers’ activities during the games and by checking them against a checklist of play experiences. Interviews were then followed that asked the players several pertinent questions to gather their opinions and feedback regarding the common experiences they gained by playing the games. The narrative analysis of recorded activities and interview feedback showed five major factors had significant impacts on players’ overall experience in playing the MOBAgame, namelycompetitiveness, mechanic, socialization, emotion, and immersion.In particular, the mechanics and emotions of the game had the most and least impacts on their overall experience, respectively.
The Usability Evaluation of Adik Jom Baca: A Mobile Educational Application for Kindergarten Malay Language Early Reading
Authors: Et.al Muhammad Modi Lakulu
Published: April 2021

Many recent research emphasized the potential of mobile educational application for enhancing early reading among kindergarteners. From the Framework of Mobile Application for Kindergarten Early Reading, the researchers was developed a novel and fascinating mobile educational application for kindergarten early reading, Adik Jom Baca. This study explored the usability the mobile application by using Usability Metrics for Mobile Learning User Interface for Children. This metric evaluated the usability of application from three dimensions; effectiveness, efficiency and satisfaction. The evaluation of usability involved 30 kindergarten teachers using Nominal Group Technique (NGT). Results indicated the high level of usability for Adik Jom Baca application.
The Effectiveness of Instructional Aids in Assisting Students to Understand Concepts in Principles of Accounting
Authors: Norwani Norlia Mat
Published: April 2021

This study was conducted to determine the effectiveness of instructional aids in the teaching and learning (T&L) of Principles of Accounting among form four students. This is quasi-experimental study involving 60 form four students in a secondary school in Klang, Selangor. The instructional aids utilized are concept charts, brief notes, powerpoint slides and supported by the text book. Pre-test and post-test were conducted to assess students’ performance before and after the treatment. The findings of the study found that the performance of experimental group is significantly better than the control group using the traditional approach. Consequently, the positive impact of using various aids in T&Lcannot be denied. Teachers should take the time to incorporate instructional aids in T&L to assist students learning. School administrator must provide the facilities required to encourage teachers to employ instructional aids in T&L.
Towards a Nuanced Explanation of Cloud ERP Adoption in SMES
Authors: Et.al Siti Aisyah Salim
Published: April 2021

This study presents a longitudinal model for investigating cloud ERP adoption. Previous work on technology adoption mostly has investigated adoption by looking at one specific phase of adoption. However, we argue that the cross-sectional research design does not sufficiently represent the complexity and the highly volatile process of adoption as a whole. Based on an archival analysis of eighty-seven firm level technology adoption studies, we identified 24 transition factors (TF) contributing to the adoption of information technology. Building on Rogers’ Diffusion of Innovations theory (1995) this research attempts to explore which transition factors are relevant in the distinct phases of cloud ERP adoption. In our work, we model the transition factors as “triggers”, where the desirable outcomes of the transition factor within a specific phase of adoption, will lead to the next stage adoption. The contribution of the paper is twofold. First, we make a context-specific contribution by extracting the different factors which have been studied in the context of cloud ERP systems and categorizing them according to the Diffusion of Innovations theory. Second, we also make a theoretical contribution by employing a longitudinal research design.
Bus Tracking App for Universities Transportation
Authors: Et.al Siti Asma Mohammed
Published: April 2021

Shuttle buses have become an important means of transportation for students especially for those who rely on it to go to class. However, students often face difficulty knowing the current location of the bus and its estimated arrival time. Some of them are even unaware of the bus schedule provided by higher management. Consequently, they have to wait too long for their respective buses to arrive. Hence, for the convenience of those who want to plan their journey with shuttle buses, two applications are proposed. One application will track the location of the bus and the other application will be used by the students. Both proposed applications will be used along with an Android phone since it is mostly used by students. The main objectives of developing this application are to inform users regarding the current bus location and estimated arrival time. This application also provides users real-time forum so they can start conversations with others with the same application. Besides, the driver's profile is alsoincluded for the user's future reference.
Future Classroom Concept for the Malaysian Education System
Authors: Et.al Mahizer Hamzah
Published: April 2021

The aim of this study is to realise the establishment of virtual schools in accordance to the existing education system in Malaysia.This study examines the views of experts who aredirectly involved in the education system in Malaysia through the use of the modified Delphi technique. A total of 13 experts were interviewed individually and discussions involving two focus groups were conducted. The responses of all panel members were recorded and the agreement obtained will guide the formation of a virtual school model. The findings from the interviews conducted with individual experts found five key factors in the establishment of future classroom, which are implementation, approach, flexibility, technology and space. The findings of this study have also suggested that the design of future classrooms in the current educational environment in Malaysia is hindered by financial constraints, lack of technology infrastructure, physical environment and the current classroom layouts.
A Critical Review on the Features of Management Information Systems: A Focus on Working from Home
Authors: Et.al Muhammad Modi Lakulu
Published: April 2021

This paper discusses the findings of a review on the current literature of the features of the Management Information System (MIS)that can help workers of organizationsto provide essential services from home during the Movement Control Order (MCO) in Malaysia. The findings of the review suggest that a sound IMS must have the necessary features to support reliable services from the standpoints of flexibility, efficiency, robustness, and security to ensure users can beserved promptly and uninterruptedly. To help realize such services, organizations must repurpose the functionalities of such systems to support work from home that provide users with accurate, up-to-date information at all time and any place.
Trends of Fast Food Consumption among Public University Students
Authors: Et.al SharhidaZawani S.
Published: April 2021

Purpose: This study aims to increase the awareness of fast food impact on body health and overweight status among public university students. Materials & methods: The sample size consists of 100 students of a public university. Data collection was conducted via an online survey. A survey was conducted by employing questionnaire and administered online. The questionnaire asked the students about their fast food consumption patterns that consist of their preferences, and trends of consumption. Result: The study demonstrates that one of the most popular fast food joints among public university students was McDonald’s (51%%). Majority of the respondents consume fast food only once or twice in a month (67%) and most of them consume fast food as a meal (67%). Conclusion: The overall findingsindicate that public university students' fast food level of intake is not impacted by their perceptions on fast food.
Test Case Quality Factors
Authors: Et.al Samera Obaid Barraood
Published: April 2021

The guarantee of software quality is very important. Thus, before a software is released to the end users, the flaws in the software should be detected by using high quality test cases. Currently, gauging the quality of test cases is carried out without any particular model and the criteria for good test cases is still unclear. Therefore, this study studies the literature using Systematic Literature Review (SLR) technique to identify the criteria of good test cases. The SLR considered papers between 2010 and 2018 in IEEE Xplore, ACM Digital Library, and Science Direct databases. Through the searching, it was found 310 papers are related. After filtering using exclusion and insertion criteria, 14 papers were considered for analysis. As a result, the test managed to identify 30 quality factors from the selected articles. These quality factors were additionally inspected, arranged and finished to be incorporated as the quality factors of test cases evaluation metrics.
Unha experiencia de ecoauditoría escolar sobre a dilapidación de alimentos no ámbito universitario
Authors: Vázquez Penedo María Jesús , Puig Blanca
Published: April 2021

Preséntase unha experiencia de ecoauditoría escolar sobre a dilapidación de alimentos e a pegada alimentaria no ámbito universitario. O traballo situáse nunha visión de ecoauditoría como proceso de aprendizaxe e de participación, que posibilita a reflexión e actuación directa sobre diversos problemas ambientais. A ecoauditoría sobre dilapidación de alimentos realizouse cun grupo de mestres e mestras en formación cursando a materia de educación ambiental. A experiencia posibilitou a aprendizaxe por parte dos futuros docentes das ecoauditorías como recurso para traballar a educación ambiental usando un enfoque baseado na resolución de problemas.
Universidades sustentaveis: um olhar sobre o campus da Universidade Federal de Mato Grosso-Cuiabá-Brasil
Authors: Dalla Nora Giseli , Siqueira Jessica
Published: April 2021

A sociedade hoje, devido a inúmeros problemas ambientais tem exigido uma nova relação sociedade natureza e as instituições públicas bem como privadas tem se preocupado com a sustentabilidade econômica, ambiental e social. Partindo dessa premissa o Brasil tem buscado estimular as escolas e universidades a serem mais sustentáveis em suas estruturas, no seu currículo e em sua gestão. Assim a Universidade Federal de Mato Grosso - UFMT tem buscado desenvolver projetos com essa finalidade. Este artigo vem na tentativa de registrar a potencialidade de um espaço sustentável dentro do campus da UFMT. Identificou-se com essa pesquisa, que se realizou por meio de uma revisão bibliográfica e documental, pesquisa de campo, entrevistas com usuários, o Bosque da UFMT. Após essa análise se levantou e indicou várias perspectivas de implementação desse espaço como sustentável, onde foram apontadas medidas mitigatórias, para diminuir a erosão, facilitar a percolação de águas a nutrientes, proteger a fauna e flora do lugar, reflorestamento de arvores frutíferas e paisagísticas do cerrado, também a criação, dentro do bosque de uma área de lazer, com esportes sustentáveis,  além de identificar e solicitar melhorias para que seja utilizada para a educação ambiental. Conclui-se que a utilidade dessa pesquisa vai além de identificação, ou até mesmo de sugerir propostas. A tentativa é de servir como documento, para eliminar a possibilidade da área do bosque, se tornar área edificada, e que esse trabalho acarrete na revitalização do bosque, com as propostas sugeridas nessa visão sustentável.
Thrombocytopenia and Deep Vein Thrombosis on the Top of an Iceberg
Authors: Daraei Morteza , Karimpour Reyhan Sahar , Abbaszadeh Mahsa , Afshari Ali
Published: April 2021

Systemic Lupus Erythematous (SLE) is a chronic autoimmune disorder with a relapsingremitting course. Besides, SLE most commonly occurs in child-bearing-age women. Due to protean manifestations, the diagnosis may be challenging; however, a high index of suspicion, i.e. achieved by experience and perceptivity is the key to a correct decision. Here, we present an SLE patient; her initial symptoms resembled a malignant process, but important elements guided us to the underlying autoimmune process. A 34-year-old woman presented with a uterine mass, deep vein thrombosis, and significant thrombocytopenia. Our first impression was malignant processes; however, considering her age with thrombosis and thrombocytopenia as the key components of her presentation, we suspected antiphospholipid syndrome and SLE. Her abdominal mass was a benign leiomyoma. We treated her with glucocorticoids and anticoagulants. Accordingly, after improving cytopenia, we discharged her and the follow-up examination result was satisfactory.
The Effect of Choice Theory-Based Group Training on Cognitive Emotion Regulation and Parent-Child Relationship in Male Adolescents
Authors: Behmanesh Zahra , Kheramine Shirali , Ramezani Khosro
Published: April 2021

Background and Purpose: Adolescence is considered as one of the most critical life periods since adolescents are being exposed to a variety of potential stimuli, whose inappropriate response to such stimuli would prevent their proper performance in society. The present study aimed to investigate the effectiveness of choice theory-based group training on cognitive emotion regulation and parent-child relationships in male adolescents.
Materials and Methods: The research method was experimental with a pretest-posttest-follow-up design and a control group. The statistical population included all male students of the senior -high school in Dogonbadan city in the academic year 2019. Using the multi-stage cluster sampling method, 30 samples were selected and randomly assigned into experimental and control groups (n=15 per group). The research instrument included the Cognitive Emotion Regulation Questionnaire (CERQ) and The Parent-Child Relationship Survey. The reality therapy intervention was performed on the experimental group for ten 90-minute sessions. The follow-up was performed after 60 days. Multivariate analysis of covariance (MANCOVA) was then used to analyze the data.
Results: The participants included 30 male adolescents, aged between 15 and 17 years old. The research findings indicated that the choice theory-based group training was effective in promoting cognitive emotion regulation (F= 27.39, P= 0.0001) and parent-child relationship (F= 44.32, P= 0.0001). Also, their effects were sustainable until the follow-up period (P= 0.0001).
Conclusion: Choice theory-based group training, as a therapeutic and clinical intervention, can be used as an appropriate and effective technique to promote cognitive emotion regulation and parent-child relationships among adolescents.
Association between Silica Exposure and Cardiovascular Disease Mortality: A Meta-Analysis
Authors: Esfahani Maryam , Bashirian Saeed , Mehri Fereshteh , Khazaei Salman
Published: April 2021

Background: Silica exposure is detrimental to health and has, thus, been a global health concern. We performed a systematic review and meta-analysis of existing articles to assess the involvement of silica exposure in cardiovascular disease (CVD) mortality.
Methods: Electronic databases including Web of Sciences, Scopus, PubMed, and Google Scholar were searched for eligible publication until December 2019. The pooled standard mortality ratio (SMR) and the 95% confidence interval (CI) were used to detect the association between silica exposure and CVD mortality.
Results: The pooled estimates of SMR indicated a nonsignificant association between silica exposure and CVD mortality (SMR: 1.26; 95% CI: 0.88-1.63). The subgroup analysis based on the type of CVD indicated a significant positive association between silica exposure and mortality from hypertensive heart disease (SMR: 2.45; 95% CI: 2.16 -2.74) and pulmonary heart disease (SMR: 4.03; 95% CI: 3.87-4.20).
Conclusion: This study confirmed that silica exposure is associated with an enhanced risk of mortality of hypertensive and pulmonary heart diseases. The verification of these results may have important effects on basic preventive strategies for health-care providers. Because of the mismatch in the silica exposure classification, some works in the literature were excluded. Also, the years of silica exposure may be important in CVD mortality. We suggest that these potential confounders be considered in future research.
Secondary Cardiac T-Cell Lymphoma Presenting with Syncope and Refractory Complete Atrioventricular Block: A Case Report
Authors: Sattarzadeh Roya , Ghodsi Saeed , Eslami Masoud , Mollazadeh Reza , Safaei Nodehi Reza , Hosseini Zahra
Published: April 2021

Cutaneous T-cell lymphomas constitute a rare category of non-Hodgkin lymphomas, which may involve the heart in the timeline of their natural course as an infrequent picture with a poor prognosis. Syncope, either due to outflow obstruction or conduction block, is also an uncommon presentation of cardiac metastasis. We herein describe a 35-year-old man, who presented with weight loss, dyspnea of 6 months’ duration, an indolent skin ulcer in the left flank, lower limb deep vein thrombosis (DVT), and recurrent syncope. He underwent implantation of a permanent pacemaker due to a complete heart block and received anticoagulants for the DVT. Skin biopsy demonstrated a T-cell lymphoma. The syncopal episodes ceased thereafter. Echocardiography and computed tomography scan revealed cardiac metastasis, which responded to systemic chemotherapy. In the first follow-up visit after 3 months, he was still pacemaker-dependent. However, the DVT was partially resolved, and the symptoms had disappeared.
Nurses’ attitudes toward quality improvement in hospitals: Implications for nursing management systems
Authors: Adolfo Cris , Albougami Abdulrhman , Roque Mark , Almazan Joseph
Published: April 2021

Background & Aim: Quality improvement in hospitals is a systematically widely used framework that improves patient care quality delivered by health care professionals. This study assessed the attitude of nurses toward Quality Improvement.
Methods & Materials: A quantitative research approach was used. A total of 361 nurses working in two government hospitals and two private hospitals in the Philippines were selected using convenience sampling. The data collected using a self-administered questionnaire was started in March-April 2019. To identify the association between nurse demographic characteristics and perceived quality improvement, an independent sample t-test, a one-way analysis of variance with a post-hoc Tukey HSD test, and a Pearson’s product-moment correlation were conducted using SPSS.
Results: Nurses have high positive quality improvement attitude scores. The age, salary, and hospital type, influence quality improvement attitude scores.
Conclusion: Nurses have a positive attitude towards qualitative improvement. In addition, nurses’ age, salary, and public hospitals' work have a positive qualitative improvement than nurses working in private hospitals.
Effectiveness of solution-focused counseling therapy on pregnancy anxiety and fear of childbirth: A randomized clinical trial
Authors: Mortazavi Forough , Mehrabadi Maryam , Karrabi Razieh
Published: April 2021

Background & Aim: Fear of childbirth and pregnancy anxiety may affect the desire for normal delivery. No study has investigated the effectiveness of solution-focused counseling on either pregnancy anxiety or all factors comprising fear of childbirth. We aimed to investigate the effects of solution-focused counseling in reducing pregnancy anxiety and fear of childbirth.
Methods & Materials: This randomized clinical trial study was conducted on 132 nulliparous women in 2019. Participants with moderate to a severe fear of childbirth were randomly divided into the intervention and control groups. The intervention group participated in five solution-focused counseling sessions. Before and after the intervention, women filled the anxiety scale for pregnancy and the Wijma Delivery Expectancy Questionnaire (W-DEQ). Data were analyzed using t-test, paired t-test, and analysis of covariance (ANCOVA).
Results: The two groups did not differ in terms of demographic and obstetric variables and pregnancy anxiety pre-test scores (P>0.05). The means of the post-test total scores and the means of scores for all five factors of the ASP were significantly lower in the intervention group than in the control group (p<0.001). The adjusted means of total scores and the adjusted means of scores for all six factors of the WDE-Q were significantly lower in the intervention group than the control group (p<0.001).
Conclusion: The solution-focused counseling reduced pregnancy anxiety and fear of childbirth in women participating in counseling sessions compared to the controls. Solution-focused counseling therapy sessions should be held for women with pregnancy anxiety and fear of childbirth.
Utilization of Plants for Medicinal Purposes and Concerns with Endangered Plant Species from Ghana
Authors: Agyemang Alfred Ofori , Turkson Bernard Kofi , Baidoo Michael Frimpong , Amponsah Isaac Kingsley , Kwao Mensah Merlin Lincoln , Orman Emmanuel , Bayor Marcel Tunkumgnen
Published: April 2021

There has always been a strong human dependency on plants for health purposes and such an important relationship should be sustained. Plants remain a repository of drug leads for discovering new pharmaceutical agents for prevention, treatment and improving the quality of health for many people globally. In the effort to improve healthcare services, Ghana put up the Recommended Essential Herbal Medicine List (REHML) consisting of products that are used in the treatment of both Communicable and non-Communicable diseases. To inspire confidence among prescribers and clients of the products it has become necessary to validate the plants and their products. The aim of the study was to identify the medicinal plants' species in the herbal products in Ghana’s REHML commonly used for treatment, the conditions being treated with them and finding published research for the plants therapeutic use. Medicinal plants on the REHML with chances of getting extinct were also assessed. The REHML of Ghana and the Ghana Herbal Pharmacopoeia were reviewed for the required information. Electronic databases; PubMed and Scopus, as well as online search engines, Google Scholar and Google were used to obtain information on the identified medicinal plants and their families. A total of 167 medicinal plant species were found to be used in 180 products as compiled in the Ghana REHML and these belonged to 63 botanical families. Most of the medicinal plants are collected from the wild making sustainability and bio-conservation a challenge. Decoctions, creams and ointments are the commonest dosage forms. The REHML of Ghana caters for 13 disease areas using 180 finished herbal products. These products are made from 167 medicinal plants, 16 of which are in the group of medicinal plants classified as endangered species. There should be a conscious effort to bio-conserve these endangered medicinal plant species so that there can be continuous supply for use in the preparation of herbal products for healthcare purposes.
Prevention of Rabies by Application of Lytta vesicatoria (Ḏarārīḥ) in Persian Medicine Texts in Islamic Civilization
Authors: Moallemi Mostafa , Yousofpour Mohammad , Jokar Assie
Published: April 2021

Rabies is one of the most lethal diseases in human history. From the past, various drugs have been used to prevent the contraction of the disease when being bitten by a rabid animal. An insect called Ḏarārīḥ (Lytta vesicatoria), although poisonous, has in some cases been medically used. Greeks and Romans have used venomousness of this insect to treat skin diseases, but it has not been used to prevent rabies. This is a summative qualitative content analysis that focused on Persian Medicine (PM) texts from 2th to 13th AH centuries. Literature was searched during centuries 4th to 13th AH, by using this key words: ذراریـح) Ḏarārīḥ), قنثاریـدس) Cantharis/cantharides), and ئشـفث Lytta vesicatoria and after extracting the data and analyzing them, the results were presented. In TPM texts, this insect was used to prevent rabies. This study has shown that the use of ḏarārīḥ (Lytta vesicatoria) in the prevention of rabies has been one of the innovations of the practitioners of Islamic civilization. The innovation proves that scholars in the period of Islamic civilization were not merely consumers or custodians of Roman, Greek, Indian, and Iranian knowledge, but added to it while preserving that knowledge.
Case Report: Tuberculous Spondylitis in Siti Rahmah Hospital During Covid-19 Pandemic
Authors: Haiga Yuri
Published: April 2021

Background:

Spondylitis TB is an infection of Mycobacterium TB involving the spine. The course of spondylitis TB is relatively indolent. This study was conducted to evaluate the clinical presentation and a goal of surgery in two patients who had been operated for spondylitis tuberculosis (TB) in Siti Rahmah Hospital during Covid-19 pandemic.

Case Report:

Case 1, A 24-year-old woman, presented to the emergency department with a complaint of nausea, vomiting, weight loss, and severe back pain. On admission she was febrile and had leukocytosis. Initial spinal x-ray was performed and revealed osteolytic changes in the vertebral body of T10 and T11. Magnetic resonance imaging (MRI) of the spine illustrated spondylitis of T8 until T12, with paravertebral abscesses, which was suggestive spondylitis. Case 2, A 19-year-old woman, presented to policlinic with complain of paraplegi inferior and hipoestesi since 7 month ago. Magnetic resonance imaging (MRI) of the spine illustrated spondylitis of C7 until T4, with paravertebral abscesses, which was suggestive spondylitis. Both patients were operated on by an orthopedic doctor. Anatomical Pathology examination showed tuberculosis spodylitis. The patient treat surgical intervention and anti-tuberculosis drug. After surgical intervention, patient had improvement of sensoric and motoric.

Conclusions:

In a covid-19 pandemic situation, diagnosis and management of spondylitis TB must be carried out because it is related to the prognosis of the disease.

 

Keywords: Mycobacterium tuberculosis; Spondylitis, Covid-19 Pandemic
Amor y odio en la terminación del ejercicio profesional
Authors:   William Alanson White Institute, Buechler Sandra
Published: April 2021

This paper presents the author's elaborations on her experience and the feelings displayed around her decision to retire from professional practice, after forty years of practicing as a psychotherapist. The ideas presented in this work are complemented by those included in the work that follows: “King Lear and the challenges of retirement”
Assimilation of the Chulym Turkic People by the Russians in the First Half of the XIX Century: the case of the Kolmogorov Family from Chumay Village
Authors: Kuzmin O. Yu.
Published: April 2021

The article deals with the assimilation of Siberian indigenous peoples by the first Russian settlers in the north of the Kemerovo region. The research was based on the historical and genealogical methods and featured a microhistorical analysis of a particular settlement of the Chulym Turkic people who lived in the Kiya river basin in the first half of the XIX century. The paper introduces the case of the Kolmogorov family of old-timers from the village of Сhumay (Chebulinsky municipal district of the Kemerovo region). The author studied memoirs and parish documents to trace the changes in the status of the Kolmogorovs: from representatives of the indigenous peoples who paid a regular tribute in furs (yasak) to peasants. The research also helped to define the borders of the yasak territories and establish the conditions that encouraged the yasak-payers to settle down as peasants. The exposure to peasantry and Russification was a long stage: it took the Kolmogorovs 25 years to enter the peasant community of Сhumay village. Moreover, the process was small-scale and random in the period under review.
Legal Discourse as a Multi-Dimensional Integrated Phenomenon and Legal Linguistics as a Syncretic Science
Authors: Dedinkin A. L.
Published: April 2021

The article introduces legal discourse as part of a complex communicative activity. It is an integrative interdisciplinary phenomenon on the border of jurisprudence and linguistics. The research objective was to establish the constituent parts of legal discourse, which includes legal texts, related scientific literature, and other documents. Legal linguistics is a generalizing discipline that studies the interaction of language and law. The line between legal discourse and other discourses is hard to define. Legal discourse is characterized by unified subjects, procedures, circumstances, and impersonality, that is, the absence of recipient and sender, hence the abundance of impersonal verb forms and impersonal constructions. Legal texts are devoid of national marks, and the vocabulary has equivalents in other languages. The present research was the first to designate a set of texts that make up legal discourse, i.e. texts of laws, decrees, scientific literature on legal matters, various legal documents, judicial texts, texts of interrogations, court speeches, expert opinion, etc. Although legal discourse and legal linguistics have different subjects and tasks, they share the same object, i.e. the interaction of language and law. Legal linguistics is an integrative science based on linguistics and legal theory, which uses achievements of philosophy, psychology, sociology, ethics, cognitive linguistics, pragmalinguistics, linguistic conflictology, etc.
Knife and Belt: Analysis of Seima-Turbino Bronze Weapons
Authors: Mikhailov Yu. I.
Published: April 2021

A bronze knife from the burial site near Rostovka village was found in a grave under the skull bones that belonged to a nine–ten-year-old child. Sopka-2/4B Krotovo necropolis has two burials, in which daggers were found under the bones of a child and a man. This ritual might have been associated with the belief that wearing a knife around one’s neck behind one’s back could make the owner invulnerable. Necklaces and belts are known to have a similar magic function. The SeimaTurbino tradition of belt weapons still remains understudied: in fact, no belt weapon has been described for this culture so far, as the belts might have been made of wool. Various weaving techniques are based on the materials of the Sinthashta and Petrovka sites. The newly-discovered images on the Seima-Turbino knives add new information to the known ceremonial practice.
Связь макроскопических характеристик твердого тела с энергией связи иона в решетке металлов
Authors: Ерохин К.М. , Калашников Н.П.
Published: April 2021

Abstract: The paper examines the relationship between the macroscopic parameters, such as the Young's modulus in the Hooke's law, the sound speed and the Debye characteristic temperature, with the binding energy of an individual atom. A formula for calculating the elastic deformation modulus is proposed. A simple formula is obtained to calculate the sound speed in a metal rod. It is suggested that the Debay characteristic temperature is connected with the binding energy of the ion in the solid lattice.
Ab initio моделирование энергии растворения и энергии связи водорода с 3sp-, 3d- и 4d-примесями в ОЦК-железе
Authors: Ракитин М.С. , Мирзоев А.А.
Published: April 2021

A fundamental understanding of the localization of H atoms in steel is an important step towards a theoretical description of the mechanisms of hydrogen embrittlement at the atomic level. Ab initio calculations within the framework of density functional theory (DFT) is used to investigate the effect of various substitutional impurities Mg, Al, Si, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo , Pd and Cd on the energy of hydrogen dissolution in the lattice of bcc iron. The electronic and elastic contributions of various impurities to the dissolution energy are distinguished, and their influence on the binding energy of hydrogen and impurities is analyzed. The existence of a linear dependence of the energy of hydrogen dissolution on the magnitude of the change in the electron density of the intra-tetrahedral pore after the introduction of a hydrogen atom into it is shown. The results obtained made it possible to formulate the key mechanisms for controlling the localization of hydrogen in bcc iron by substitution impurities.
Влияние температуры продолжительного отжига на структуру и магнитные свойства нанокристаллического сплава FeSiNbCuB
Authors: Ершов Н.В. , Черненков Ю.П. , Лукшина В.А. , Смирнов О.П. , Шишкин Д.А.
Published: April 2021

A dependence of the soft magnetic properties of the Fe73.5Si13.5Nb3Cu1B9 alloy on the temperature of annealing (Tan) carried out in air for 2 hours at temperatures from 520 to 620°C was investigated. It was shown that with Tan increasing, the magnetic hysteresis loop broadens significantly and becomes more inclined, and the Curie temperature of the amorphous matrix surrounding the α-FeSi nanocrystals decreases. The atomic structure and phase composition of the alloy samples were investigated by X-ray diffraction in transmission geometry. After annealing at temperatures of up to 580°C, nanocrystals contain predominantly D03 phase (Fe3Si stoichiometry) and have average size of about 7 nm. Their relative fraction in the alloy increases as the temperature increases due to the additional diffusion of iron from the matrix into the nanocrystals. After annealing at Tan ≥ 600°C, the average size of the nanocrystals increases, and reflections of iron boride crystals appear in the diffractograms. The deterioration of the soft magnetic properties of the Fe73.5Si13.5Nb3Cu1B9 nanocrystalline alloy, when the annealing temperature rises from 520 to 580°C, is explained by a decrease in the silicon concentration in Fe-Si nanocrystals, which leads to a growth of the constant of the magnetocrystalline anisotropy.
Универсальность поведения гистерезиса магнитосопротивления и его температурной эволюции для гранулярных высокотемпературных сверхпроводников Y-Ba-Cu-O
Authors: Семенов С.В. , Балаев Д.А. , Петров М.И.
Published: April 2021

The work is devoted to the establishment of regularities in the behavior of the magnetoresistance hysteresis R(H) of granular high-temperature superconductors (HTS) of the yttrium system. We carried out a comparative study of the magnetotransport properties of granular HTSC samples, which have (i) approximately the same magnetic properties and temperatures of the onset of the superconducting transition (90.5–93.5 K, which characterizes HTS grains) and (ii) different values of the transport critical current JC (which characterizes the intergrain boundaries). Despite the significant scatter in the JC values (more than an order of magnitude) of the three samples studied, a universal behavior of the magnetoresistance hysteresis was found, apparently inherent in all granular Y-Ba-Cu-O. The R(H) hysteresis is very wide, and in a sufficiently large interval of the external field, the dependence of the hysteresis width of the magnetoresistance H on the field Hdec (external field H = Hdec for a decreasing hysteresis branch) is close to a linear function: H ≈ Hdec. This behavior is observed for the entire temperature range of realization of the superconducting state (the studies were carried out at temperatures of 77–88 K and 4.2 K). The explanation of the obtained result is based on the concept of consideration the effective field in the intergrain boundaries. This effective field is the superposition of the external field and the field induced by the magnetic moments of the grains. The field induced by the grains, in turn, is significantly enhanced in the region of intergrain boundaries due to the effect of the magnetic flux compression (the length of the intergrain boundaries is several orders of magnitude smaller than the size of the HTS grains). The above is confirmed from the analysis of the R(H) hysteresis for a composite HTS sample based on Y-Ba-Cu-O and CuO, in which the length of the intergranular boundaries is purposefully increased, as a result, the effect of the flux compression is less pronounced, and the hysteresis R(H) narrows.
Диодные гетероструктуры с ферромагнитными узкозонными полупроводниками A-=SUP=-3-=/SUP=-FeB-=SUP=-5-=/SUP=- разного типа проводимости
Authors: Лесников В.П. , Ведь М.В. , Вихрова О.В. , Данилов Ю.А. , Звонков Б.Н. , Здоровейщев А.В. , Калентьева И.Л. , Кудрин А.В. , Крюков Р.Н.
Published: April 2021

Diode structures with ferromagnetic narrow-gap semiconductors A3FeB5 as only p-region (p-GaFeSb/n-InGaAs), only n-region (n-InFeSb/p-InGaAs), p- and n-regions (p-GaFeSb/n-InFeSb, p-GaFeSb/n-InFeAs) for p-n junction were fabricated by pulsed laser deposition in vacuum. The composition of ferromagnetic semiconductor layers and their thicknesses, determined by X-ray photoelectron spectroscopy, generally correspond to the technological data for diode structures. In particular, the thickness of the GaFeSb layer is 25–30 nm, and the thickness of the InFeAs and InFeSb layers is 35–40 nm. The iron content in InFeSb ranges from 25 to 35 at.%. The GaFeSb layer contains from 15 to 41 iron at. %, and the InFeAs layer - 35 iron at. %. The chemical analysis of the structures revealed the presence of chemical bonds Fe-As (Sb), In-Fe and Fe-Ga. Therefore, it can be assumed that Fe atoms in the fabricated structures can substitute for elements of groups III and V simultaneously.
All structures exhibit the effect of negative magnetoresistance at sufficiently low observation voltages of the effect (up to 50 mV), in low magnetic fields (up to 3600 Oe), and at high measurement temperatures. For GaFeSb/InFeSb, GaFeSb/InFeAs diodes, negative magnetoresistance was first observed at room temperature. The hysteresis form of the dependences of the resistance on the magnetic field suggests the effect of the ferromagnetic properties of the layers of narrow-gap semiconductors on the transport of carriers in the structures.
Сжимаемость и электронные свойства цианидов металлов
Authors: Корабельников Д.В. , Федоров И.А. , Журавлев Ю.Н.
Published: April 2021

The compressibility and electronic properties of metal cyanides are investigated within the density functional theory taking into account the dispersion van der Waals interaction. It was shown that gold cyanide has a low linear compressibility (less than 0.1% at a pressure of 1 GPa) and a high linear modulus (~ 1200 GPa) along the -Au-CN-Au-CN- chains. Silver cyanide exhibits negative linear compressibility, which correlates with the compressibility of Ag-N coordination bonds. For sodium cyanide, the linear compressibility along the C - N covalent bonds is greater than for gold and silver cyanides, while the elastic anisotropy is less. Unlike sodium cyanide, for gold and silver cyanides, cation-anionic bonds (Au-N, Au-C and Ag-N, Ag-C) are partially covalent in nature, and the upper valence states correspond mainly to the states of cations. The band gap of gold cyanide is smaller than that of silver and sodium cyanides. The band gap widths of gold and silver cyanides significantly decrease with increasing pressure, which indicates the possibility of metallization at sufficiently high pressures.
Прямой магнитоэлектрический эффект в двухслойных керамических композитах на основе ферримагнетика Mn-=SUB=-0.4-=/SUB=-Zn-=SUB=-0.6-=/SUB=-Fe-=SUB=-2-=/SUB=-O-=SUB=-4-=/SUB=- и сегнетоэлектрика PbZr-=SUB=-0.53-=/SUB=-Ti-=SUB=-0.47-=/SUB=-O-=SUB=-3-=/SUB=-
Authors: Калгин А.В.
Published: April 2021

Under different experimental conditions, the direct magnetoelectric effect was studied in two-layer composites prepared both by joint sintering of layers of powders of ferrimagnet Mn0.4Zn0.6Fe2O4 and ferroelectric PbZr0.53Ti0.47O3 and by gluing plates pre-sintered from powder materials of Mn0.4Zn0.6Fe2O4 and PbZr0.53Ti0.47O3. It was found that sintered composites show greater values of the magnetoelectric effect than composites prepared by gluing sintered plates together. The revealed regularities are in good agreement with the conclusions from the theoreti-cal model of the effective parameters of the heterogeneous environment.
Магнитные и магнитоэлектрические свойства скандобората NdSc-=SUB=-3-=/SUB=-(BO-=SUB=-3-=/SUB=-)-=SUB=-4-=/SUB=-
Authors: Еремин Е.В. , Дубровский А.А. , Гудим И.А. , Титова В.Р. , Меркулов М.В.
Published: April 2021

Групповым методом из раствора-расплава на основе тримолибдата висмута выращены монокристаллы тригонального неодимового скандобората NdSc3(BO3)4. Исследованы его магнитные и магнитоэлектрические свойства в диапазоне температур 4.2-300 K и в магнитных полях до 9 Т. В магнитном отношении он является парамагнетиком, свойства которого определяются магнитными свойствами иона Nd3+ с учетом ванфлековской парамагнитной поправки. Величина магнитоэлектрической поляризации оказалась сравнимой с ранее исследованным разбавленным алюмоборатом неодима Nd0.35Y0.65Al3(BO3)4. Последнее обстоятельство открывает еще один подкласс соединений, в которых должен наблюдаться гигантский магнитоэлектрический эффект. Ключевые слова: магнитоэлектрический эффект, рост кристаллов, мультферроики.
Теплопроводность цепочки ротаторов с двухбарьерным потенциалом взаимодействия
Authors: Клинов А.П. , Мазо М.А. , Смирнов В.В.
Published: April 2021

The thermal conductivity of a one-dimensional chain of rotators with a double-barrier interaction potential of nearest neighbors has been studied numerically. We show that the height of the "internal" barrier, which separates topologically nonequivalent degenerate states, significantly affects the temperature dependence of the heat conductivity of the system. The small height of this barrier leads to the dominant contribution of the non-linear normal modes at low temperatures. In such a case the coefficient of thermal conductivity turns out to be the risen function of the temperature. The growth of the coefficient is limited by local fluctuations corresponding to jumps over the barriers. At higher values of the internal barrier height, dependence of the heat conductivity on temperature is similar to that of classical rotators.