bluuebunny/crossref_metadata_2025 huggingface dataset:
Augmented reality mobile information system for the obtaining detailed and non-intrusive information in large environments
Authors: Marceles Villlalba Katerine , Ortiz Martinez Elkin Faber , Benavides Zuñiga David Armando , Donado Siler Amador
Published: June 2023

Introduction: This article is the result of the augmented reality project "AR position U" for the effective visualization of information of interest dynamically through augmented reality, carried out in the year 2022 in the city of  Popayan, capital of the department of Cauca.

Problem: Problems have been identified regarding the location of spaces in very large places by people who have no knowledge of the site you need to locate causing loss of time, frustration to the point of being late to the desired location. This leads to the following problem question: What would be the impact of the implementation of an augmented reality application, whose purpose is to provide detailed information to people in a non-intrusive way in large environments?

Objective: To propose a mobile information system that allows users to orient themselves and obtain detailed information in a dynamic and non-intrusive way in large environments through augmented reality.

Methodology: The experimental methodology is used, since a series of tests were determined to reach the validation of the information system in order to have a product that was articulated with the guide of good practices of project management and meet the needs of the population to which it could be directed.

Results: As a result, the information system based on augmented reality was obtained, allowing the easy location of spaces due to the usability of the product.

Conclusion: Based on the experimental methodology it is determined that, although augmented reality improves the detailed descriptions of large environments, it is very limited to the external conditions, however, the tool meets the proposed objectives.

Originality: Augmented reality information system for orientation in large places and obtaining information in a non-intrusive way, under the PMBOK and XP methodology.

Limitations: Due to complexity and time constraints, it is not possible to cover all faculties. On the other hand, 3D interface is only generated by QR tags. On the other hand, the correct functioning of the system can be affected by lighting factors, the distance of the user from the tag, the hardware and software capacity of the smartphone and the internet connection.
Book Review: Steven Shaviro, The Rhythm Image: Music Videos and New Audiovisual Forms (New York; London; Dublin: Bloomsbury Academic, 2023).
Authors: Browne Jacob
Published: June 2023

Steven Shaviro, The Rhythm Image: Music Videos and New Audiovisual Forms (New York; London; Dublin: Bloomsbury Academic, 2023), pp. 216, ISBN: 9781501388552 (hb), £90.00; ISBN: 9781501388569 (pb), £21.99; ISBN: 9781501388576 (ebook ePub and Mobi), £19.79; ISBN: 9781501388583 (ebook PDF), £19.79. 
Microstructure and elemental analysis of iron-based powder composite materials
Authors: Musurzaeva B. B.
Published: June 2023

This paper studies the kinetics of structure formation of an iron-bronze composite containing solid lubricants. Depending on the compacting pressure and sintering temperature, binary and complex phases are detected in the iron-bronze structure. The presence of solid lubricants in the composition of the composite material significantly reduces interaction of the liquid (bronze) and solid (iron) phases during sintering. Talc and graphite, which are heat–resistant at a sintering temperature of 850 – 1150 °C, were used as solid lubricants. The presence of talc, located on the surface of compressed particles of iron, copper, tin and graphite, significantly reduces the effect of their interaction. At the same time, the micro-talc particles envelop them, and its thermal stability retains this state up to high temperatures (approximately 900 °C). It was established that there is no perlite in the microstructure of iron-bronze sintered at a temperature of 850 °C. This can be explained by the talc adsorbing ability on the surface of iron particles which prevents diffusion of carbon into the iron crystal lattice. An increase in the sintering temperature up to 1000 °C leads to the formation of perlite in the iron-bronze structure, while the amount of perlite predominates over ferrite. This indicates the partial burnout of talc from the surface of iron particles and the opening of diffusion paths to carbon. At a sintering temperature of 1150 °C, perlite and a grid of light inclusions are formed in the microstructure of the iron-bronze samples. According to the results of electron microprobe analysis, the light inclusions are solid solutions of variable compositions such as Fe – Cu – Sn, Cu – Fe – Sn, Cu – Sn – Fe. In order to confirm these assumptions, a phase X-ray diffraction analysis was performed. Diffraction patterns of these samples are represented by reflections of iron and copper crystals. The absence of diffraction effects (characteristic of tin crystals) is conditioned by tin solubility in the copper lattice. This is due to the low melting point of tin (232 °C) and its ionic radius, which allows isomorphically replacing of copper and iron ions with tin ions (their difference is less than 15 %).
Electron beam additive manufacturing of composite alloy from stainless steel and aluminum bronze: Microstructure and mechanical properties
Authors: Zykova A. P. , Panfilov A. O. , Chumaevskii A. V. , Vorontsov A. V. , Tarasov S. Yu.
Published: June 2023

The authors investigated the microstructure, phase composition and mechanical properties of the steel-bronze composite obtained by electron beam additive manufacturing with simultaneous supply of aluminum bronze wires BrAMc9-2 and stainless steel 06Kh18N9T. X-ray diffraction analysis revealed that the composite contains 25 % (vol.) of aluminum bronze, which leads to the formation of a three-phase structure consisting of γ-Fe, α-Fe and α-Cu grains. According to scanning electron microscopy, the volume fraction of austenite, ferrite and bronze in the steel – 25 % bronze composite is 40.7, 35.7 and 23.6 %, respectively. Unstable conditions of the electron beam additive manufacturing process lead to the release of dispersed particles in austenite and ferrite grains. Dispersion-hardened copper particles with an average particle size of 40 nm, the volume fraction of which is 47 %, are isolated in austenite grains. Dispersion-hardened NiAl particles with a volume fraction of 20 % are isolated in ferrite grains, the average size of which is 44 nm. Transmission electron microscopy data indicate the coherent conjugation of arrays of dispersion-hardened particles with the matrix. Such a composite structure provides an increase in yield strength and tensile strength by an average of 400 and 600 MPa compared with yield strength and tensile strength of 06Kh18N9T steel obtained by electron beam additive manufacturing without bronze addition. Microhardness of the composite is on average 2.2 GPa, which is 0.4 GPa higher than that of 06Kh18N9T steel obtained by electron beam additive manufacturing without bronze addition.
Occurrence of characteristic defects of grinding balls from rejects of continuously cast billets of rail steel
Authors: Umanskii A. A. , Morozov I. S. , Protopopov E. V. , Simachev A. S. , Dumova L. V.
Published: June 2023

On the basis of metallographic studies, the authors determined the characteristic defects of grinding balls rolled from the rejects of continuously cast billets of K76F rail steel. Relationship of the presence of internal defects of the balls with their impact resistance was established. Defects in the form of internal cracks with accumulations of non-metallic inclusions in the area of their localization and flocks have the greatest impact on the reduction of balls impact resistance. Such defects are the cause of balls destruction during impact resistance tests in 62 and 17 % of cases, respectively. The effect of internal cracks without significant accumulations of non-metallic inclusions and quenching microcracks located along the boundaries of the phase interface was estimated at 12 and 9 %. The regularities and mechanism of influence of the rejects chemical composition of K76F rail steel billets on the probability of destruction of the balls produced from them during impact resistance tests were established. An increase in sulfur content in the billets of the studied rail steel reduces impact resistance of the balls produced from them, as it contributes to formation of non-plastic sulfides that concentrate in the area of internal cracks. An increase in hydrogen content in rail steel naturally contributes to an increase in probability of formation of the flocks, which significantly reduce the balls stability to shock loads. An increase in carbon content in the initial billets affects the increase in probability of destruction of K76F steel balls during copra tests. It is explained by formation of cementite-type carbides when carbon content corresponding to the eutectoid steel is reached. In general, the relative degree of influence of the K76F rail steel chemical composition on impact resistance of grinding balls is 48 %.
Prävention von Infektionskrankheiten mit Abwasser
Authors:   AG RNA-Biologie und Posttranskriptionale Genregulation, Berliner Institut für Medizinische Systembiologie des Max Delbrück Centers (BIMSB/MDC), Berlin, Wyler Emanuel , Landthaler Markus ,   AG RNA-Biologie und Posttranskriptionale Genregulation, Berliner Institut für Medizinische Systembiologie des Max Delbrück Centers (BIMSB/MDC), Berlin
Published: June 2023

Abwässer enthalten unter anderem den größten Teil der in der Bevölkerung zirkulierenden Krankheitserreger sowie Mikroben aller Art und erlauben das Überprüfen von Antibiotikaresistenzen. Das Abwassermonitoring hat in der Corona-Pandemie einen massiven Aufschwung erlebt. Jetzt stellt sich die Frage, was es zukünftig für die Prävention von Infektionskrankheiten beitragen kann.
Arbeitsschutz „im Huckepack“ – ein alternatives Konzept zur Ansprache von Unternehmen auf Sicherheit und Gesundheit bei der Arbeit
Authors:   Hochschule der Wirtschaft für Management, Mannheim, Zimber Andreas , Horchler Julika ,   Hochschule der Wirtschaft für Management, Mannheim, Weiser Imke ,   Hochschule der Wirtschaft für Management, Mannheim, Gregersen Sabine ,   Berufsgenossenschaft für Gesundheitsdienst und Wohlfahrtspflege, Hamburg, Prüße Martin ,   Berufsgenossenschaft Holz und Metall, Mainz, Schmitt-Howe Britta ,   Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, Berlin, Pietrzyk Ulrike ,   Arbeitsgruppe Wissen-Denken-Handeln, Technische Universität Dresden
Published: June 2023

Occupational safety “piggybacked” – an alternative concept for addressing companies on occupational health and safety. Part I: Theoretical foundation Background: Employers are obliged to implement occupational safety measures. However, implementation rates are rising only very slowly. Reservations about the issues and official requirements are widespread among entrepreneurs. Objective: There is still a great need for statutory accident insurance organisations to successfully address entrepreneurs so that they can ensure the health and safety of their workers. Method: Based on findings from cognitive and learning psychology, an alternative approach, known as the “piggyback” method, was developed. Results: By linking the health and safety topics with positively evaluated contextual stimuli, the reservations can be circumvented and a first positive change in attitude can be achieved. For a sustainable change in behaviour, a deeper dive into the issues is necessary. Conclusions: The “piggyback” method can be used especially to reach entrepreneurs who have shown little motivation for implementation so far. The concept can be applied to different fields of prevention, but still requires further testing and evaluation. Ethical aspects must also be taken into account during implementation. Keywords: occupational health and safety– information processing – entrepreneurs – targeting concept
Guillermo Uribe Holguín: sonatas para violín y piano. Aproximación musicológica
Authors: Trujillo Escobar Ana María , Orduz Espinal Ana María , López Gil Gustavo Adolfo
Published: June 2023

Este texto discute la pertinencia y el aporte de la obra creativa del compositor Guillermo Uribe Holguín (1880-1971) para las generaciones actuales de músicos y para el medio cultural artístico en general. El análisis se centra en el estudio musicológico de sus sonatas para violín y piano, pero teje elementos contextuales sobre el momento histórico en el que vivió, así como algunas perspectivas teóricas que emergen al abordar este tipo de iniciativas, puesto que se trata de una reflexión producto de un proyecto de investigación-creación denominado Ciclo de Sonatas para violín y piano de Guillermo Uribe Holguín: discusión estilística y propuesta interpretativa.
A COMPARATIVE RESEARCH A COMPLEX SENTENCE WITH TEMPORAL ADVERB CLAUSE OF MODERN MONGOLIAN, TURKISH, AND KOREAN LANGUAGES
Authors:   The Korean Association for Mongolian Studies, CHOI YOONSEO
Published: June 2023

Until now, comparative studies in the vocative of the two languages have been carried out in the context of simple sentences. However, in real life complex sentences are used more than simple sentences in spoken and written language. So, a complex sentence with adverbial clause of time has been specially considered on the example of the Mongolian language, that including complex sentences shows unique features of the vocative. If a complex sentence has two different subjects, it appears by nominative case in the clause sentence of Korean and Turkish; but it appears by vocative clause in the clause sentence of Mongolian; sometimes it appears by the zero subject. The main importance of this study is to clarify and explain this reason from the point of view of grammar and identity. When we do this, research, aimed to be as a language usage for bilingual students and to the teaching teachers. We have reviewed the special usage of the vocative in the three languages based on the imperative characteristic of the verb to be transitive. This characteristic is manifested in the subjective of complex sentences with an adverbial clause of time in the Mongolian language, but in the objective of simple sentences in the Turkish and Korean languages. This is due to the fact that is not the primary function of vocative case adjective to transitive verb and it is due to the fact that it serves as an auxiliary suffix that highlights the subject and intensifies the tone of speech. As seen from suffix of vocative in the three languages, it is necessary to learn to understand and use it in relation to human attitudes in addition to the rules of linguistics, that relates with both transitive or intransitive verb for to eliminate the prejudice that verb with suffix of vocative case is commands to only transitive verbs. We are considering that is possible, it can be explained by the characteristics of human attitudes and relationships that is not from the point of view of grammatical whether to get a vocative in subjective in the clause sentence of a complex sentences.
Dağıtım sisteminde harmonik yük tespiti için toplam harmonik aktif güç yöntemi
Authors: ÖZEL Ferhat , YÖRÜKEREN Nuran , TEKDEMİR İbrahim Gürsu
Published: June 2023

Güç sistemlerinde yaygın olarak kullanılan nonlineer karakteristiğe sahip yükler, akım ve gerilim harmonik bozulmalarına neden olmaktadır. Güç sistemlerinde harmonikler, enerji verimliliği ve güç kalitesi açısından önem arz etmektedir. Bir güç sisteminin herhangi bir ortak bağlantı noktasındaki (OBN) harmoniklere, genellikle birden fazla harmonikli yükler neden olmaktadır. Harmonikli yüklerin yerinin belirlenmesi, harmonik azaltma yöntemlerinin uygulanması ve uluslararası standartlardaki sınır koşullarının sağlanması açısından çok önemlidir. Bu çalışmada, harmonikli yüklerin yerinin belirlenmesine yönelik analizler yapılmış; bu amaçla, yaygın olarak kullanılan Toplam Harmonik Aktif Güç (THAG) yöntemi incelenmiştir. Yöntemin incelemesinde, IEEE 13 baralı dengeli dağıtım test sistemi kullanılmıştır. Test sisteminde harmonikli güç akışı analizleri için DIgSILENT Power Factory kullanılmış ve yönteme ilişkin hesaplar, MATLAB’te gerçekleştirilmiştir.
Satış tahmini için uzun kısa-süreli bellek ağı tabanlı derin transfer öğrenme yaklaşımı
Authors: EROL Begüm , İNKAYA Tülin
Published: June 2023

Üretim ve hizmet sektörlerinde faaliyet gösteren firmalar, artan rekabet koşulları ile mücadele edebilmek için belirsizlik altında geleceğe yönelik çeşitli kararlar alırlar. Bu kritik kararlardan biri satış tahminidir. Dijital teknolojilerin yaygınlaşması ile derin öğrenme yaklaşımlarının satış tahmininde kullanımı artmaktadır. Derin öğrenme, başarılı sonuçlar vermesine rağmen büyük miktarda veri ile uzun eğitim sürelerine ihtiyaç duymaktadır. Bu duruma çözüm olarak problemler arası bilgi aktarımını sağlayan transfer öğrenme (TL) kullanılmaktadır. Transfer öğrenme, kaynak veriler ile modelin eğitimini ve hedef veriye aktarımını sağlamaktadır. Bu çalışmada, farklı ürünlerin satış tahmini modellerinden elde edilen bilginin gelecekteki tahmin modellerine aktarımını sağlamak üzere derin transfer öğrenme yaklaşımı önerilmiştir. Satış verisi tek değişkenli zaman serisi olarak ele alınmıştır. Kaynak veri seçiminde aktarılabilirlik ölçütü olarak hedef ve kaynak veri arasındaki gerçek cezalı düzenleme uzaklığı (ERP) kullanılmıştır. Seçilen kaynak veri ile zamansal bağımlılıkların modellenmesini sağlayan uzun kısa vadeli hafıza (LSTM) ağı eğitilmiştir. Ön eğitilen LSTM ağında parametre transferi yapılarak hedef veri için ERP-LSTM-TL tahmin modeli oluşturulmuştur. Çeşitli sektörlere ait satış veri kümelerinde yapılan deneysel çalışmalarda ERP-LSTM-TL, hedef veri ile eğitilen LSTM’e göre tahmin doğruluğunda ve eğitim süresinde iyileşme sağlamıştır. Önerilen yaklaşımın performansı klasik tahmin ve makine öğrenmesi yöntemlerinin performansları ile karşılaştırılmıştır. ERP-LSTM-TL karşılaştırılan yöntemlere göre istatistiksel olarak daha iyi sonuç vermiştir.
LLC rezonans dönüştürücüsündeki hava aralıklı manyetik bileşenler için yeni bir optimizasyon yöntemi
Authors: LORDOĞLU Abdulsamed , GULBAHCE Mehmet Onur , KOCABAŞ Derya Ahmet , DÜŞMEZ Serkan
Published: June 2023

LLC rezonans dönüştürücü tasarımı, Lm, Lr, Cr ve kalite faktörünün gerilim kazancının karmaşık bir fonksiyonu olması ve uygulamaya bağlı olarak gerilim kazançlarını kapsayan Sıfır Gerilimde Anahtarlama’yı (SGA) sağlayabilecek anahtarlama frekansı aralığı seçiminin zorluğundan dolayı elektrikli araç şarj uygulamaları için hayli zorlu bir tasarım problemidir. Bu çalışma, hava aralıklı manyetik bileşenler için birden fazla tasarım bileşenini ve kısıtını bir arada değerlendirebilen, doğadan esinlenen matematiksel yöntem tabanlı yeni bir tasarım yöntemi sunmaktadır. Önerilen yeni yöntem Parçacık Sürüsü Algoritması ile, oluşturulan çekirdek veri tabanındaki birçok çekirdek arasından en uygun tasarımı seçmektedir. Geleneksel tasarım algoritmalarından farklı olarak önerilen algoritma, manyetik bileşenlerin kaybını, maliyetini ve hacmini içeren bir amaç fonksiyonunu en aza indirerek en uygun manyetik akı yoğunluğunu belirlemektedir. Sunulan yöntem hafif bir elektrikli araç şarj cihazındaki 3700W, 48V LLC rezonans dönüştürücü için denenmiştir. Algoritma içinde birincil ve ikincil sargılarda sırasıyla seri ve paralel çoklu bağlamaların uygulandığı çok çekirdekli yapılar dikkate alınarak bir tasarım çalışması yapılmıştır. Tasarlanan manyetik bileşenler Ansys Electronic Desktop ve Simplorer ortak benzetim ortamında doğrulanmış ve çekirdek veri tabanından en uygun çekirdek yapıları seçilmiştir. Önerilen yöntemin en uygun LLC rezonans dönüştürücü tasarımını bulmak için çoklu kombinasyonların bir arada ve hızla değerlendirilebileceği sistem düzeyinde bir optimizasyon algoritmasının bir parçası olarak kullanılabileceği görülmüştür.
Akan veri kümeleme probleminde ağaç veri yapılarının performans karşılaştırması
Authors: ŞENOL Ali , KAYA Mahmut , CANBAY Yavuz
Published: June 2023

Teknolojideki gelişmeler, insanların pek çok farklı kaynakta üretilen verileri toplamasına ve analiz etmesine imkân tanımıştır. Sensörler, mobil cihazlar, nesnelerin interneti gibi yapılarda üretilen veriler akan veri formatında olup, bu tür verilerden işlenerek faydalı bilgilerin elde edilmesi zor bir problemdir. Akan verileri analiz etmek için sıklıkla kullanılan yöntemlerden birisi olan kümelemede, veriler dağılımlarına göre çeşitli gruplara ayrılarak analiz edilir. Bu çalışmada, akan veri kümeleme problemi için iki yeni algoritma geliştirilerek literatürdeki başka bir yöntemle karşılaştırılmıştır. Farklı veri kümeleri üzerinde yapılan deneyler neticesinde, geliştirilen algoritmaların iyi sonuçlar verdiği görülmüştür.
Fault diagnosis of machines operating in variable conditions using artificial neural network not requiring training data from a faulty machine
Authors: Pawlik Paweł , Kania Konrad , Przysucha Bartosz
Published: June 2023

The fault diagnosis for maintenance of machines operating in variable conditions requires special dedicated methods. Variable load or temperature conditions affect the vibration signal values. The article presents a new approach to diagnosing rotating machines using an artificial neural network, the training of which does not require data from the damaged machine. This is a new approach not previously found in the literature. Until now, neural networks have been used for machine diagnosis in the form of classifiers, where data from individual faults were required. A new diagnostic parameter rDPNS (Relative Differences Product of Network Statistics) as a function of the machine's shaft order was proposed as a kind of new order spectrum independent of the machine's operating conditions. The presented work analyses the use of the proposed method to diagnose misalignment and unbalance. The results of an experiment carried out in the laboratory demonstrated the effectiveness of the proposed method.
K-12 ÖĞRETMENLERİNİN ÇEVRİMİÇİ ÖĞRENME SÜRECİNİ ZENGİNLEŞTİREN TEKNOLOJİ KULLANIM DURUMLARI
Authors: Tonbuloğlu İsmail , Çukurbaşı Barış
Published: June 2023

COVID-19 pandemisi nedeniyle Milli Eğitim Bakanlığı tüm kademelerde uzaktan eğitime geçerek öğretim sürecinin sürekliliğini sağlamıştır. Bu süreçte Eğitim Bilişim Ağı’ndan(EBA) sağladığı olanaklar ve bunlara ek olarak EBA TV kanallarıyla öğretmen ve öğrencilere çevrimiçi bir öğrenme ortamı sunmuştur. Olağandışı gelişen bu süreçte öğretmenler öğretim süreçlerini desteklemek adına EBA dışındaki öğretim teknolojilerinden de faydalandılar. Dolayısıyla araştırmada pandemi nedeniyle K-12 düzeyinde çevrimiçi öğretim yapan öğretmenlerin bu süreçteki öğretim faaliyetlerinin ve deneyimlerinin incelenmesi amaçlanmıştır. Araştırmada nitel araştırma modellerinden durum çalışması araştırması temel alınmıştır. Veri toplama aracı olarak araştırmacıların geliştirdiği ankete 411 öğretmen katılmıştır. Verilerin analizinde içerik analizi ve betimsel analiz kullanılmıştır. Araştırmanın sonucunda çevrimiçi öğrenmede öğrenci öğrenmesini zenginleştirmek için dijital etkinliklerle etkili ve etkileşimli bir ders süreci, akran öğretimi ve etkileşimi, alternatif öğretim yöntemleri, veli etkinlikleri, değerlendirme araçları, elektronik portfolyo, etkileşimli aktiviteler, çevrimiçi yarışmalar ve destekleyici örtük öğretim süreçleri öne çıkmaktadır. Çevrimiçi öğrenmede öğretim videosu, ses kaydı (podcast), sunum içerikleri, internet siteleri, mobil öğrenme uygulamaları ve iletişim ağları öne çıkan eğitsel faaliyetlerdir. Öğretmenler çevrimiçi öğrenme sürecini zenginleştirmek için masaüstü bilgisayar, laptop, akıllı telefon, grafik tablet vb. teknolojik cihazlardan yararlanmışlardır. Öğretmenlerin çevrimiçi ortamdaki “teknolojik araç”, “internet bağlantısı” ve “uzaktan eğitim platformları” başlıklarındaki teknik sorunlar ve eksiklikler; öğrencilerin çevrimiçi öğrenmesinin zenginleştirilmesini sınırlandıran yönler olarak öne çıkmaktadır.
Creation of a training and test dataset with the disposition and transposition of overlaying electrocardiographic electrodes when recording electrocardiograms-12
Authors: Gazashvili Tamara  M. , Drozdov Dmitry V. , Shutov Dmitry  V. , Shkoda Andrey  S.
Published: June 2023

BACKGROUND: Electrocardiography is one of the simplest, most widely used, inexpensive, and informative methods in functional diagnostics; yet, if performed poorly, its diagnostic value is sharply reduced. Several attempts were made to systematize errors and deviations in electrode application, but all concerned the most common options (rearrangement of red and yellow electrodes, yellow and green electrodes, and chest electrodes above or below the standard scheme).
AIM: To create an electrocardiogram dataset with different options for transpositions and dispositions of electrodes during electrocardiogram recording.
MATERIALS AND METHODS: The study included patients aged 1875 years (27 males and 22 females). All patients provided informed consent for electrocardiogram registration. During one visit, the cardiogram was recorded on the device Modular system for recording and remote transmission of electrocardiograms (EASY ECG) for each patient.
RESULTS: In all, 488 electrocardiograms were recorded in 49 patients. The results obtained indicate a significant variability of the electrocardiogram pattern. Visual analysis of the electrocardiograms revealed no difficulties in determining the transposition associated with rearranging the leads on the arms (RY) in the thoracic C1C2. The placement of thoracic electrodes in contact cheek-to-cheek dispositions with the transfer of thoracic leads above or below two intercostals was reliably determined compared with the Wilson scheme. The transpositions of the yellow and green limb electrodes and the change in the position of the thoracic ones when they are lined up in a straight line, bullied between the ribs (curved), and confused in places C5 and C6 are difficult to determine even when comparing two cardiograms next to each other, with the correct and transpositional superposition of the electrodes. The initial changes on the electrocardiograms, physique type, breast size, or the presence of an implant most likely determine it.
CONCLUSION: An electrocardiography dataset was obtained using various electrode dislocation variants. The dataset consists of a series of electrocardiograms obtained for each patient with several electrode placement options and contains both normal and pathological electrocardiograms.
Biden’s Soft Power vs. Coercive Diplomacy and Responding to Russia’s Invasion of Ukraine
Authors: Demczuk Andrzej Marcin
Published: June 2023

The article examines Russia’s military attack on Ukraine, and proposes actions to solve the crisis. It starts with an analysis of America’s relations with Ukraine prior to 2021–2022, and explains why we have to deal with Ukraine case to begin with. Next, it describes the primary drivers of Russia’s continued interest in invading Ukrainian territory. Finally, the author analyses Biden’s foreign policies and determines what type of strategy should be executed to bring peace and stability back to the region.
The Effect of Red Reishi Mushroom (Ganoderma lucidum) Extract on Carbon Tetrachloride Induced Liver Injury and Cyclooxygenase-2 Immunoreactivity
Authors: YAVUZ Halime , NUR Gökhan , DEVECİ H. Ahmet , GÜLER İzzettin
Published: June 2023

Carbon tetrachloride (CCl4) is a xenobiotic compound with toxicological action. It is absorbed by gastrointestinal system, respiratory system, and skin. Studies have reported that many countries have used Ganoderma lucidum (GL, Reishi Mushroom) as a medicinal mushroom against liver diseases induced by hepatotoxic agents such as CCl4 for more than thousands of years and is used for many diseases, including cancer since it has been thought that it increases resistance against them and treats them. In the present study, immunohistochemical localization and expression of cyclooxygenase-2 (COX-2) by administrating carbon tetrachloride and Ganoderma lucidum in adult rats were examined. In the study, 32 adult Spraque-Dawley male rats that were 8-10 weeks old were used. Rats were divided into 4 groups as control, CCI4, Ganoderma lucidum (GL), and CCI4+GL. As a result of the experimental applications, the liver tissue was found to be normal in the control and GL groups, and multifocal necrosis areas, hepatocellular degeneration, cell infiltration, sinusoidal dilatation, and congestion were observed in the central and portal areas in CCI4 group. In the CCI4+GL group, decreases were observed in lesion severity and density. COX-2 immunoreactivity was detected as more common in hepatocyte cytoplasm in the area from the central vena to the Kiernan space, while it was observed as sporadic in the hepatocyte nucleus. While CCI4 caused a decrease in total antioxidant level (TAS) in blood plasma samples, it caused an increase in total oxidant level (TOS), Aspartate aminotransferase (AST), and alanine aminotransferase (ALT) levels. It is seen that Ganoderma lucidum, which has an important place in alternative and folk medicine, reduces oxidative stress with its hepatoprotective effect and inhibits the inflammatory response in the liver.
Responsabilidad Social Organizacional: estado del arte y tendencias
Authors: Noguera López María Yohana
Published: June 2023

La Responsabilidad Social Organizacional (RSO) es un término que ha sido desarrollado e investigado de forma amplia, por lo que fue motivación para la investigadora realizar una revisión teórica de estudios representativos de diferentes vertientes y paradigmas, a los fines de generar un proceso de reflexión hasta el punto de generar una propuesta con valor agregado en el que se plantea la taxonomía de la responsabilidad social organizacional, estratificándola en tres etapas dependiendo del grado de compromiso y desarrollo de la estrategia para la gestión de dicha responsabilidad, a saber: pre-RSO, RSO convencional o básica, RSO plena.
Tipos de liderazgo: una perspectiva liberadora desde la consejería profesional
Authors: Quiroz Leal Sonia
Published: June 2023

Este trabajo tiene por objetivo evaluar los tipos de liderazgo que detentan seis empresarios, enmarcando los tipos detectados en enfoques ya reconocidos en la literatura sobre el tema, añadiendo una perspectiva liberadora particular desde la consejería profesional. El estudio se adhiere al paradigma cualitativo, marco metodológico que emplea la teoría fundamentada, derivando de los datos una teoría emergente, enfoque metodológico que permite analizar, interpretar y construir la categorización. Tras el proceso, de corte inductivo, se obtienen datos que confirman que los informantes ubican su actuación como líderes en base a por lo menos seis tipos de liderazgo: carismático, autocrático, democrático, liberal, transaccional y transformacional. Se obtienen importantes categorías sobre los tipos de liderazgo, que describen seis tipos de éstos, reconocidos ya en la literatura existente, describiendo claramente que los informantes clave reportan características de liderazgo que se corresponden con un enfoque de liderazgo basado en el cambio. Los resultados permiten abrir reflexión acerca de la enorme importancia del liderazgo en cuanto a la conducción de procesos en las organizaciones reconociendo plenamente el factor humano implicado, y así acentuar la importancia de que los líderes muestren competencias que se correspondan con un enfoque basado en el cambio, y basado en la libertad, a fin de asegurar el respeto a los derechos y a la dignidad humana, generando una sinergia organizacional que dirija objetivos en favor del crecimiento de las organizaciones, pero, al mismo tiempo, del crecimiento humano de todos los agentes productivos. Todo ello fundamentado desde las aportaciones que la ciencia de la psicología y la praxis de la consejería profesional ofrecen a esta importante área de la administración de recursos humanos.
Liquidez y endeudamiento de las pymes y microempresas del sector cerámico Norte de Santander
Authors: Díaz Ortega Carlos Humberto , Maestre Delgado Marisol , Díaz Ortega Nubia Isabel
Published: June 2023

Esta investigación versa sobre el análisis la liquidez y el endeudamiento durante los años 2015-2019 de las empresas del sector cerámico de Norte de Santander, para ello se utilizan indicadores financieros propios de la información contable. Está basada en un enfoque cuantitativo, documental, con datos en panel, con un análisis de tendencias de los indicadores contables tomando una muestra de 59 entre pequeñas y microempresas. Como resultados, se encuentran que tanto las pequeñas como las microempresas tienen un capital de trabajo y una liquidez positiva con tendencia al crecimiento. Mientras que por el lado del endeudamiento las pequeñas empresas muestran equilibrio y las microempresas presentan una situación negativa que fue aumentando durante el periodo en estudio. Se concluye como estrategia el uso de la planeación financiera para la aplicación de los recursos y las fuentes de endeudamiento.
Fundamentos teóricos de educación 4.0 para la excelencia académica en el ámbito de la cuarta revolución industrial
Authors: Calderón Orduz Freddy Abelardo
Published: June 2023

La presente investigación se propone atender el desarrollo de la educación desde las perspectivas que la sociedad en la actualidad requiere; para ello, la misma se orienta en el propósito de generar fundamentos teóricos de educación 4.0 para la excelencia académica en el ámbito de la cuarta revolución industrial como vía para alcanzar la excelencia académica. Para lograr tal fin, este estudio se ubica en el enfoque cualitativo, paradigma interpretativo y método etnográfico (netnografía), con énfasis en un diseño de campo y del nivel explicativo; para ello, se delimita el escenario de la investigación el cual está comprendido por el Servicio Nacional de Aprendizaje – SENA, del cual se toman dos (2) aprendices, dos (2) instructores y un (1) administrativo como miembros de interés como informantes claves, quienes aportan los datos, se hace uso de la entrevista en profundidad, los análisis se realizan por medio de la triangulación. El proceso de atención a los resultados se establece para dar respuesta a las categorías que conforman la investigación y a una serie de elementos que emergen de la realidad abordada, donde se evidencia la necesidad de hacer énfasis en la superación de los procesos de enseñanza tradicional con miras a suponer una realidad educativa diferente, que sirva como un marco de referencias para el desarrollo de la educación en el marco contemporáneo de la educación 4.0 y la cuarta revolución industrial. Por último, se presentan los elementos propios de la teorización, el cual se fundamenta en tres perspectivas que componen los constructos teóricos, para traducir una nueva realidad educativa, de la mano de las bondades de la excelencia académica en el marco del desarrollo de una serie de filosofías, que buscan la estructuración de una nueva realidad educativa.
Colombia y Emiratos Árabes Unidos. Una visión desde la integración económica y los negocios internacionales
Authors: Casanova Al Attrach Faridash Esmir , Omaña Guerrero Jesús Alfonso
Published: June 2023

El objetivo de esta investigación es proponer alternativas que, desde la teoría de negocios internacionales, propicien el establecimiento de estrategias de integración comercial entre Colombia y Emiratos Árabes Unidos. La investigación comprende dos fases. La primera la revisión de fuentes de datos relacionados con el comercio bilateral entre los años 2009-2021 además de la información recopilada en el pabellón Oportunidad de Colombia durante el desarrollo de la Expo Dubái 2020, con la presencia de empresarios de todos los sectores interesados en el mercado árabe. La segunda fase de la investigación se corresponde con un estudio de naturaleza cualitativa, de diseño de campo y tipo descriptivo, en el cual se cuenta con representantes de la sección consular de la Embajada de Colombia como informantes claves. Para el análisis de la información recopilada durante esta fase se utiliza el software de análisis cualitativo Atlas Ti en el cual se valoran las categorías de integración comercial y negocios internacionales. Del análisis de información se tiene como hallazgos principales que los Emiratos Árabes Unidos es un nuevo mercado para Colombia y sus multilatinas. El Emirato es un excelente territorio para proyectar a Colombia como marca país al ser un mercado con un alto poder adquisitivo y baja aversión al consumo de productos innovadores para su cultura. Además, es una fortaleza para Colombia establecer relaciones sostenibles con un estado con limitadas condiciones climáticas y geográficas para la producción de bienes y servicios razón por la cual importa el 80,00% de lo que se consume.
Clima Organizacional: estudio empírico en un restaurante de Viçosa, Minas Gerais, Brasil
Authors: Gonzalez Júnior Hilário Alonso
Published: June 2023

El presente estudio tiene por objetivo analizar el clima organizacional en el restaurante Távola Lúdica Burgers & Fun, ubicado en la ciudad de Viçosa en Minas Gerais, Brasil. Se lleva a cabo un estudio cuantitativo y, a partir de una muestra de quince (15) colaboradores, se aplica un cuestionario compuesto de treinta y cinco (35) afirmaciones en la escala de Likert de cinco (5) puntos; además, se lleva a cabo una entrevista con el propietario a fin de conocer algunos aspectos del ambiente de trabajo. Los resultados permiten demostrar que se requiere mejorar algunos aspectos del clima organizacional tales como la comunicación, el trabajo en equipo y la motivación.
La función gerencial: un análisis del liderazgo desde la Consejería Profesional
Authors: Quiroz Leal Sonia
Published: June 2023

El presente artículo tiene por objetivo estudiar el liderazgo desde la perspectiva de la consejería profesional. A partir de un estudio cualitativo y apoyada en la teoría fundamentada se hace una entrevistas a seis gerentes de la comunidad empresarial de la ciudad de Monterrey, N. L., México, con la finalidad de conocer sus percepciones sobre diversos temas en torno al liderazgo, tales como: responsabilidad social corporativa, ética en las empresas, estrategias competitivas, proceso de toma de decisiones, ejercicio de la autoridad, cultura de la organización, evaluación del desempeño, selección del personal, estrategias de motivación del personal, y usos de las TIC y redes sociales. Los resultados permiten advertir que las funciones gerenciales asocian características de inteligencia emocional e inteligencia social para dirigir procesos con atingencia; esto refleja la necesidad de promover el desarrollo gerencial adicionando estos dos componentes en el desarrollo del liderazgo, a fin de lograr una consistente respuesta de los subordinados hacia el logro de las metas organizacionales. Los gerentes exhiben características que se corresponden con constructos personales, además de los aspectos administrativos que corresponden a su cargo.
Gestión del gobierno electrónico en las alcaldías
Authors: Carreño Ríos María , Roberto Pérez Carlo
Published: June 2023

El presente estudio tiene por objetivo analizar el impacto de las TIC en el desarrollo del gobierno electrónico en las alcaldías del estado Táchira – Venezuela, a fin de conocer el desarrollo de su gestión. A partir de una muestra de veintinueve alcaldías, se revisan sus páginas Web para analizar la información difundida en este medio. Los resultados permiten demostrar que solo nueve alcaldías cuentan con una página Web, razón por la cual queda todavía un camino por recorrer para desarrollar el gobierno electrónico y favorecer la gestión.
Creatividad: intersección del pensamiento lateral con la economía del comportamiento
Authors: Burgos Moncada Jorge Javier
Published: June 2023

Richard H. Thaler, Premio Nobel de Economía de 2017 realizó investigaciones sobre la economía conductual, dando origen, a la Economía del Comportamiento, disciplina de gran utilidad para los análisis del impacto en política económica y otras áreas. Este artículo tiene por objetivo es analizar las teorías sobre Pensamiento Lateral y Economía del Comportamiento para interrelacionarlos a través de la creatividad. Se recurre a una metodología fundamentada en la investigación exploratoria a fin de revisar las fuentes secundarias de información relacionadas con el tema, además, se siguió un enfoque cualitativo-deductivo para realizar los análisis. Los resultados del estudio permiten demostrar que las industria cultural y creativa está en pleno desarrollo en Colombia y se están desarrollando cursos formativos en economía conductual; asimismo, se evidencia que el pensamiento vertical (convergente) está más desarrollado que el pensamiento lateral (divergente). Se puede decir que los comportamientos no son lineales, más bien, son analógicos e impredecibles; por este motivo, las predicciones, juega un papel significativo sobre la creatividad, el pensamiento lateral y la economía del comportamiento.
Crisis migratoria venezolana: Universidad y su impacto en el Mercado Laboral
Authors: Mendoza Espinoza Álvaro , Contreras Doray
Published: June 2023

Esta disertación pretende demostrar que las prácticas intervencionistas del Estado venezolano en el ámbito universitario son una de las causas de la crisis económica nacional, pues generan un fallo en el mercado laboral al exceder la oferta laboral y desmejorar su calidad, situación que consecuentemente desembocaría en la emigración. Esta emigración creará nuevos problemas en el mercado laboral en cuanto a la demanda, pues disminuirá el personal altamente calificado que pueda satisfacer las necesidades del mercado nacional en el contexto globalizado. Por último, se expresa la preocupación por la pérdida del bono demográfico en Venezuela, que sumado a la emigración de personal altamente calificado y a la imposibilidad de formar nuevo talento humano en las universidades, pudiera generar un impacto económico con consecuencias a largo plazo.
Modelo de demanda de productos textiles distribuidos por medio del catálogo Carmel en Cúcuta, Norte de Santander
Authors: Gómez Pradilla María Camila , Caraballo Leonardo Javier , Rangel Quiñonez Henry Sebastián
Published: June 2023

Mediante esta investigación, se recopila la información de las personas que venden los productos contenidos en el catálogo Carmel en la ciudad de Cúcuta, Norte de Santander, con el fin de conocer el comportamiento que tiene la demanda de estos productos textiles. La información necesaria de cada una de las variables exógenas que se van a considerar en el modelo se recopila a través de una encuesta aplicada a las personas que distribuyen el catálogo en la ciudad y los datos son procesados a través del Software Rstudio. La metodología que se utiliza es cuantitativa con un enfoque econométrico y, se logra determinar a través de una regresión múltiple, una ecuación que permite estimar las cantidades demandadas. El modelo final ubica en un 61,65% el comportamiento de las cantidades y se explica a través del precio promedio de la prenda, el acceso a Internet, el número de catálogos que vende y si la ganancia de la venta es su ingreso principal.
Silk fibroin–gelatin photo-crosslinked 3D-bioprinted hydrogel with MOF-methylene blue nanoparticles for infected wound healing
Authors: Li Zhuoyuan , Zheng Ao , Mao Zhiyuan , Li Fupeng , Su Tingshu , Cao Lingyan , Wang Wei , Liu Yang , Wang Chen
Published: June 2023

Photo-crosslinked hydrogel (PH) is an outstanding candidate for three-dimensional (3D) printing as a wound dressing because of its high efficiency in crosslinking and injectability. In this study, methylene blue (MB)-loaded UiO-66(Ce) nanoparticles (NPs) were synthesized to prevent drug self-aggregation and achieve the photodynamic therapy (PDT) effect for efficient antibacterial action. Then, a composite photocrosslinked silk fibroin (SF)/gelatin hydrogel loaded with MB@UiO-66(Ce) NPs (MB@UiO-66(Ce)/PH) was fabricated. The printability and the improvement of the mechanical properties of the hydrogel by the NPs were clarified. The hydrogel exhibited good biocompatibility and promoted the migration and proliferation of fibroblasts. With the PDT effect of MB@UiO-66(Ce) NPs, the hydrogel showed an excellent antibacterial effect, which became more pronounced as the concentration increased. In vivo study showed that the MB@UiO-66(Ce)/PH could fill the defects without gaps and accelerate the repair rate of full-thickness skin defects in mice. The MB@UiO-66(Ce)/PH with antibacterial properties and tissue healing-promoting ability provides a new strategy involving 3D bioprinting for preparing wound dressings.
Case Study: Postgraduate Students’ Class Engagement in Various Online Learning Contexts When Taking Privacy Issues to Incorporate with Artificial Intelligence Applications
Authors: Fang Cheng , Tse Alex W. C.
Published: June 2023

Artificial Intelligence (AI) has transformed the Education sector. It made it possible for academic institutions to personalize content according to students’ individual needs and improve administrative tasks such as grading assignments. This has increased efficiency in teaching and learning but has also raised relevant concerns about data privacy issues. Researchers have pointed out the potential hindrance of this concern to the further development and implementation of AI technology in Education. In this research project, the authors conducted a mixed method to investigate the above issue by assessing students’ class engagement in various online learning contexts when considering AI privacy issues or not. The first part of this project presented a quantitative approach (quasi-experimental design) while this paper focused on the qualitative approach (interviews) conducted with the same group of 99 students from the postgraduate school via Zoom. Individual student interviews were conducted with randomly chosen 9 students from the two experimental groups in phase one of this research, and thematic analysis was used to analyze the relevant data based on the 4-factor theoretical framework (skills, emotion, participation, and performance) from The Online Student Engagement Scale (OSE). The study discovered that the majority of the students regarded the privacy consent taken into consideration when implementing AI applications in an online learning context had enhanced their class engagement. In addition, the findings indicated that students’ emotions and participation engagements increased the most out of the four OSE factors.
Genotoxicity Assessment of Hydroalcoholic Extract of Bark of Terminalia arjuna (Combretaceae)
Authors: Thomas Alex , K. R. Ethiraj
Published: June 2023

The mutagenic potential of Terminalia arjuna hydroalcoholic bark extract was evaluated using Ames test with strains TA98, TA100, TA102, TA1535, and TA1537. The genotoxic potential was assessed by performing Chromosomal Aberration test with cell lines of CHO. In the assessment of mutagenic potential by the Ames test, hydroalcoholic extract of Terminalia arjuna induced a negative response and in Chromosomal Aberration test, it did not show any significant genotoxic activity in the CHO cell lines.