bluuebunny/crossref_metadata_2025 huggingface dataset:
COMPARASION PLASTIC BEHAVIOR OF BOX GRIDER BRIDGE WITH MULTIPLE BOX AND CELLULAR BOX CROSS SECTIONS
Authors: Yuslinda Yuslinda , Rani Cut Meuthia
Published: April 2024

This study compares plastic deformation behavior in box girder bridges with multiple boxes and cellular box cross-sections. The cross-section's shape significantly influences the girder's post-yield behavior despite being designed to have the exact yield moment. Steel's stress-strain relationship undergoes linear behavior until the yield stress is reached, followed by strain hardening. This study aims to assess the impact of strain hardening on the plastic behavior of girder box bridges.Two types of box girder sections, multiple box and cellular box, are designed with equivalent yield moments. The analysis is conducted with and without strain hardening calculations to evaluate plastic moment, inelastic area length, shape factor, and moment-curvature relationship. The design and analysis follow RSNI T-03-2005 standards using SAP 2000 v.15.Results indicate that multiple box sections exhibit more prominent plastic moments and inelastic area lengths than cellular box sections. Strain hardening calculations show significant increases in plastic moments for both section types. Graphical comparisons highlight the differences in moment-curvature relationships between models with and without strain hardening. Understanding the impact of strain hardening on plastic behavior provides valuable insights for designing and assessing box girder bridges, ensuring structural safety and performance under load conditions.
ابعاد قيادة الازمات ودورها في المناعة التنظيمية
Authors: دينو جيا , اسماعيل هادي , نوري ره نج
Published: April 2024

يهدف البحث الى تشخيص مستويات توفر ابعاد قيادة الازمات والمناعة التنظيمية والتحقق من دور قيادة الازمات في المناعة التنظيمية في الجامعات التقنية في اقليم كوردستان العراق  من خلال  تحليل دور ابعاد قيادة الازمات في المناعة التنظيمية فيها، تم اعتماد المنهج الوصفي التحليلي لتشخيص متغيرات البحث التي اجريت في الجامعات التقنية في اقليم كوردستان العراق ( جامعة التقنية- دهوك، جامعة التقنية- اربيل ، جامعة التقنية- السليمانية ) وكانت عينة البحث مكونة من( 234) من اعضاء هيئة التدريس في الجامعات المبحوثة الذين ابدوا رأيهم من خلال مستويات اتفاقهم على فقرات الاستبانة والتي كانت الاداة الرئيسة لجمع بيانات الميدانية، تم تحليل البيانات بالاعتماد على عدد من الادواة الاحصائية منها المتوسطات الحسابية والانحرافات المعيارية ومعامل الارتباط والانحدار، توصل البحث الى وجود علاقة ارتباط معنوية بين قيادة الازمات والمناعة التنظيمية وان المناعة التنظيمية في الجامعات المبحوثة تقترن مع توفر المؤشرات التي تتبلور ضمن ابعاد قيادة الازمات لدى القيادات الادارية في الجامعات المبحوثة، وان بعدي المسؤولية والتعلم من الازمة لدى القادة تساهمان بمستويات عالية في تعزيز المناعة التنظيمية، فضلا عن وجود تأثير معنوي لجميع الابعاد الاخرى لقيادة الازمات في المناعة التنظيمية، واوصى البحث بضرورة سعي الجامعات بتعزيز المناعة التنظيمية لديهم بالتركيز على ابعاد قيادة الازمات لدى القادة وخاصة بعدي اخذ المسؤولية والتعلم من الازمة فضلا عن اقتراح اجراء دراسات مستقبلية في بيئات اخرى واختبار مهارات قيادة الازمات ومتغيرات اخرى يمكن ان تؤثر في تعزيز المناعة التنظيمية ضمن اطار الدراسات المستقبلية.
Exposures and Health Effects of Diacetyl and 2,3-Pentanedione in a Coffee Processing Facility
Authors: Cheung Kerry , Whitelaw Jane , Apthorpe Linda
Published: April 2024

Diacetyl and 2,3-pentanedione are alpha-diketones that are generated during the coffee roasting process and have been shown to be related to respiratory symptoms, abnormal lung function, and in rare cases, an irreversible disease called obliterative bronchiolitis. This study measured personal exposures in a coffee roastery in New Zealand using thermal desorption tubes and explored the prevalence of respiratory symptoms with a health questionnaire.
Exposures from task samples were highest for grinding (Geometric Mean (GM): 22.5 ppb diacetyl; GM: 19.3 ppb 2,3-pentanedione), followed by packaging (GM: 10.8 ppb diacetyl; GM: 9.3 ppb 2,3-pentanedione) and then roasting (GM: 4.7 ppb diacetyl; GM: 4.1 ppb diacetyl). 8-h time-weighted average (TWA) diacetyl exposures exceeded the National Institute of Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL) of 5 ppb for Roaster/Packager (GM: 6.6 ppb) and Grinder (GM: 5.3 ppb). 8-h TWA concentrations were below the NIOSH REL of 9.3 ppb for 2,3-pentanedione (Roaster/Packager, GM: 5.7 ppb; Grinder, GM: 4.6 ppb). Workers reported nose, eye symptoms and systemic symptoms (flu-like illness or achy joints, fever or chills, or unusual tiredness or fatigue).
The results indicated that exposure was highest for tasks involving ground coffee beans and that coffee processing workers can be exposed to alpha-diketones above the NIOSH RELs. Further research into alpha-diketone exposure and health effects, and control measures to minimise exposure are recommended.
Numerical Model Test of Spilled Oil Transport Near the Korean Coasts Using Various Input Parametric Models
Authors: Dang Hai Van , Joo Suchan , Lim Junhyeok , Hur Jinhwan , Shin Sungwon
Published: April 2024

Oil spills pose significant threats to marine ecosystems, human health, socioeconomic aspects, and coastal communities. Accurate real-time predictions of oil slick transport along coastlines are paramount for quick preparedness and response efforts. This study used an open-source OpenOil numerical model to simulate the fate and trajectories of oil slicks released during the 2007 Hebei Spirit accident along the Korean coasts. Six combinations of input parameters, derived from a five-day met-ocean dataset incorporating various hydrodynamic, meteorological, and wave models, were investigated to determine the input variables that lead to the most reasonable results. The predictive performance of each combination was evaluated quantitatively by comparing the dimensions and matching rates between the simulated and observed oil slicks extracted from synthetic aperture radar (SAR) data on the ocean surface. The results show that the combination incorporating the Hybrid Coordinate Ocean Model (HYCOM) for hydrodynamic parameters exhibited more substantial agreement with the observed spill areas than Copernicus Marine Environment Monitoring Service (CMEMS), yielding up to 88% and 53% similarity, respectively, during a more than four-day oil transportation near Taean coasts. This study underscores the importance of integrating high-resolution met-ocean models into oil spill modeling efforts to enhance the predictive accuracy regarding oil spill dynamics and weathering processes.
Psychedelie jako filosoficko-antropologický fenomén: pojetí Logu v díle Terence McKenny
Authors: Vrbová Monika
Published: May 2024

Fenomén zakoušené psychedelie (doslova „vyjevení mysli“) stojí na pomezí filosofického zkoumání a antropologického bádání. V našem příspěvku se pokusíme nahlédnout jedno ze základních filosofických východisek amerického etnobotanika a antropologa Terence McKenny, které našel u Hérakleita a jeho pojetí logu. Dle Terence McKenny se při psychedelické zkušenosti děje "emanace" Logu a je to také Logos, který dle Terence McKenny promlouvá k modernímu člověku skrze technologii. V tomto článku není zkoumána úplnost oprávnění ztotožnění McKennova pojetí logu s tím Herakleitovským, ale úvodní vyložení McKennových inspirativních úvah.
COMPARTIMENTAÇÃO ETNOGEOMORFOLÓGICA SOB A ÓTICA DOS AGRICULTORES FAMILIARES RURAIS PIAUIENSES
Authors: Ribeiro Karen Veloso , Ribeiro Karoline Veloso , Albuquerque Emanuel Lindemberg Silva , Barros Roseli Farias Melo de
Published: April 2024

O estudo visa compreender as classificações etnogeomorfológicas propostas pelos agricultores familiares rurais, com enfoque nas similaridades e diferenças dos saberes tradicionais/locais sobre o modelado terrestre. Deste modo, as feições etnogeomorfológicas identificadas foram: baixa/baixão, pé da costaneira/pé da ladeira, costaneira/ladeira/serrado/subida ou morro e chapada, cujo reconhecimento se deu com base em aspectos topográficos, pedológicos, hidroclimáticos e vegetacionais. Depreendeu-se que a prática agrícola associada as principais atividades de uso e ocupação do solo possibilitou o reconhecimento das feições geomorfológicas locais, bem como das variáveis que levaram os agricultores familiares rurais a distingui-las, refletindo diretamente no modo como usam a terra.
UTILISATION OF LARGE LANGUAGE MODELS BASED CHATBOTS IN SCIENTIFIC AND PEDAGOGICAL ACTIVITIES OF UNIVERSITY TEACHERS
Authors: Terletska Tetiana , Kovalenko Iryna
Published: May 2024

Among the skills required from a university teacher in the 21st century there is utilisation of artificial intelligence (AI) including large language model tools in scientific and pedagogical practice, understanding principles of work with AI and interaction with it, reacting to risks connected to AI utilisation in education. Artificial intelligence based chatbots have become one of the most used technologies in different spheres of human activities. Due to a combination of large language models and generative artificial intelligence chatbots are able to understand data input by a user and generate human-like texts. This has enlarged the spheres of chatbots utilisation, in particular in education, and has led to the 4th place of ChatGPT in Top-100 Tools for Learning Rating in 2023. However, the results of teachers survey at Borys Grinchenko Kyiv Metropolitan University on their experience in language models utilisation in their professional activities have shown that 46,6% of respondents do not use large language models based tools, and the number of surveyed teachers for every way of chatbots utilisation does not exceed 25%. The analysis of recent publications has also shown that world scientific society has paid most attention to studying opportunities provided by ChatGPT. At the same time other large language models and chatbots require deeper study. The article analyses free versions of large language model based chatbots which work with Ukrainian language, their strengths and weaknesses and possible methods of application. The authors considered the Professional Standard for the group of professions "Teachers of higher education institutions" of 2021 and the draft of the Professional Standard "Teacher of higher education institutions" of 2024 and identified the labour functions of teachers of higher education institutions, where large language model chatbots can be used as an auxiliary means. The functions of chatbots in the scientific and pedagogical activity of teachers are highlighted and described, and recommendations are provided for the use of specific tools.
The Role of Immersive Virtual Realities: Enhancing Science Learning in Higher Education
Authors: Tene Talia , Guevara Marco , Moreano Gabriel , Vera John , Vacacela Gomez Cristian
Published: April 2024

Objective: This systematic review aims to map out the role of immersive technologies, specifically virtual and augmented realities (VR and AR), in enhancing learning outcomes within higher education science programs, providing a clearer understanding of their pedagogical value. Methods: Leveraging extensive database searches in Scopus and Web of Science, an initial phase of 172 articles was identified. Through a meticulous process of screening based on inclusion and exclusion criteria, this was refined to 33 important articles. These articles were further analyzed to identify distinct structural elements regarding VR and AR interventions and their effects on educational outcomes. Analysis: Each study was evaluated for its contribution to pedagogical methods, with a focus on quantifiable changes in student performance and engagement. Results: The analysis revealed that immersive technologies are being applied across various stages of the academic crossing, from introductory courses to advanced laboratory work. Particularly, 18 articles demonstrated a significant positive or increased impact on learning outcomes. Conclusions: The review confirms that VR and AR possess a transformative potential for higher education, particularly in the sciences. These technologies not only captivate students' interest but also facilitate deeper understanding and retention of complex material. The evidence suggests that VR and AR can substantially enhance the educational experience when implemented thoughtfully. Future research should aim to expand upon these findings, exploring the longitudinal impact of immersive technologies on learning and their potential to democratize education. Doi: 10.28991/ESJ-2024-SIED1-06 Full Text: PDF
The Internal Work Environment and Job Alienation: The Case of Faculty Members
Authors: Bougherza Rédha , Azieb Samia , Abdo Noufal Zezit M. , Mallek Mohamed , Abderrahmane Yasser , Brachene Imed Eddine , Menighed Ahmed
Published: April 2024

The objective of this study is to examine the nature of the relationship between the internal work environment including its all-encompassing dimensions (organizational structure, participation in decision-making, incentives) and job alienation in Higher education institutions through focusing on faculty members at Jijel University in Algeria. That being the case, the study aims to fill a research gap by investigating the underexplored relationship between the Internal Work Environment and Job Alienation, hence while there is ample literature on work alienation, studies specifically focusing on work alienation within higher education institutions through the prism of internal work environment are notably scarce. The study utilized a descriptive approach, employing a survey sampling method to collect data from the target population with a specifically designed questionnaire for this purpose. The questionnaire consisting of 60 items was administered to a randomly selected sample of 167 faculty members at Jijel University. The collected data were analyzed through the Statistical Package for Social Sciences (SPSS), version 22. The study's findings illustrate that faculty members perceive their work environment as inadequate for carrying out their activities, coupled with a notably high level of job alienation. Additionally, the research underscores a significant correlation between the internal work environment, encompassing its various dimensions, and the prevalence of job alienation among faculty members at Jijel University. Doi: 10.28991/ESJ-2024-SIED1-07 Full Text: PDF
KARS MÜZESİ ENVANTERİNE KAYITLI BAZI HALI ÖRNEKLERİ
Authors: Elver Hatice
Published: April 2024

Halı sanatı milattan önceki yüzyıllara kadar uzanan Geleneksel Türk Sanatlarından birisidir. Halı dokumacılığının ne zaman başladığı kesin olarak bilinmemektedir. Pazırık halısı, günümüze kadar ulaşmış en eski düğümlü dokuma örneğidir. Muhteşem motif ve renkleriyle dikkat çeken bu halı dışında yine Türkiye’nin birçok bölgesinde ulaşılan örnekler halı sanatının ne kadar köklü bir geçmişe dayandığını göstermektedir. Kars ve çevresinde de yıllar boyu halı, kilim gibi çeşitli kirkitli dokumalar yapılmıştır. Fakat bugün yöreye has özellikleriyle dikkat çeken bu halılar evlerde yok denecek kadar az sayıdadır. Birbirinden değerli halıları ancak müzelerde görmek mümkündür. Kültürel mirası korumak, unutulmaya yüz tutan sanat eserlerini hatırlatmak, gelecek kuşaklara aktarmak amacıyla kurulan müzeler, ülkemizde çok sayıda değerli eseri barındırmaktadır. Kars Müzesi de bu eserlerin sergilendiği müzeler arasındadır.
Bu araştırma Sanatta Yeterlik tez çalışması için Kars Müzesi’nden alınan izin ile bizzat yapılmıştır. Müzenin etnagrafik eserler bölümünde birbirinden değerli el dokuması halılar arasından rastgele seçilen ve tez kapsamına dahil edilmeyen 8 adet halı araştırma konusunu oluşturmaktadır. Müze yetkilileri tarafından oluşturulan envanter bilgilerine ek olarak 8 adet halının motif, desen, renk, teknik ve kompozisyon özellikleri ayrıntılı olarak açıklanmıştır. Bu araştırma, kültürel mirasımız olan el dokuma halıların önemini belirlemek ve bu değerli mirası koruma bilincini artırmak açısından önem taşımaktadır.
Matematik Eğitiminde Yenilikçi Bir Yaklaşım: ChatGPT'nin Rolü
Authors: Karabıyık Ümit
Published: April 2024

Bu araştırma, ChatGPT gibi yapay zeka entegrasyonlarının matematik eğitimine katkılarını incelemeyi hedeflemektedir. Özellikle, matematik derslerinde öğrenciler ve eğitimciler için yapay zekanın rolünü anlamak ve eğitimde kullanımını değerlendirmek amaçlanmaktadır. Matematik öğretiminde Chatbot’ları kullanma konusunda en az bir aylık deneyime sahip katılımcı grubu dört matematik öğretmen adayı ve on yedi mühendislik öğrencisinden oluşturulmuştur. Tüm katılımcılara, ChatGPT ile özgürce etkileşimde bulunma fırsatı verilerek ve yaptıkları konuşmaların ekran görüntülerini Word belgeleri olarak kaydetmeleri istendi. Keşif sürecinde, katılımcılar belirli bir süre sınırlaması olmaksızın ChatGPT'yi kullanarak daha derinlemesine etkileşimde bulundular. Çalışmada, iki ana aşama içeren nitel vaka incelemesi yaklaşımını benimsenmiştir: görüşme içeriğinin analizi ve kullanıcı deneyimlerinin incelenmesi. Başlangıç aşamasında, araştırmada ChatGPT'nin gelişmiş matematik yeteneklerini tanıma ve kullanıcılara çeşitli konularda temel matematik bilgisi sunarak eğitim sonuçlarını artırma potansiyeli vurgulanmaktadır. Çalışmanın ikinci aşamasında, altı farklı matematik eğitimi senaryosu üzerinde kullanıcı deneyimleri incelenmiş, uygulamanın faydalı yönleri ile çeşitli sorunları ortaya konmuştur. ChatGPT, matematik problemlerini ve soruları çözmede etkili olmasına rağmen, geometri konusunda kısıtlı ve yanlış anlamaları düzeltmede zorlanmaktadır. Çözümlerin doğruluğu ve verimliliği, denklemlerin karmaşıklığı, girdi verisinin kalitesi gibi faktörlere bağlı olduğu görülmektedir. Bu araştırmanın bulguları, ChatGPT gibi sohbet botlarının matematik eğitimi ve öğrenme ortamlarına güvenli ve yararlı bir şekilde entegrasyonunu sağlamaya yönelik çeşitli araştırma yolları önermektedir.
Shaping Language Pedagogy: The Impact of Linguistics, Psychology, and Sociology from the 1880s to the 1980s
Authors: Toksöz Sibel
Published: April 2024

The time frame from the 1880s to the 1980s represents a crucial era where foundational ideas in linguistics, psychology, and sociology were established. Major developments in these fields such as the emergence of modern linguistics, establishment of psychology as a distinct scientific discipline, Durkheim’s concept of collective consciousness and societal nature of beliefs, two world wars, and geopolitical changes greatly influenced language teaching methodologies and theories during this time. The impact of these events resulted in changes within school systems, prompting ministries of education to take administrative measures. It also gave rise to the establishment of new organizations like the International Phonetic Association (IPA) and associations for language teachers. The research aims to provide a nuanced understanding of the interconnectedness of linguistics, psychology, and sociology in molding language pedagogy during a crucial period in its historical development. The intersection of these disciplines sheds light on shaping language teaching methodologies and theories, offering insights for educators, researchers, and policymakers in the field of language education.
Öğretmenlerin Okula Yönelik Tutumları
Authors: Yıldırım Zeytun , Göksoy Süleyman
Published: April 2024

Bu araştırmanın amacı, öğretmenlerin okula yönelik tutumlarını anlamak ve daha iyi bir eğitim ortamı oluşturarak okulun genel performansını artırmak amacıyla öğretmenlerin okula yönelik tutumlarını belirlemeyi hedeflemektedir. Araştırmada nicel araştırma modellerinden tarama modeli kullanılmıştır. Araştırmada öğretmenlerin okula yönelik tutumları cinsiyet, mesleki kıdem, okuldaki hizmet süresi ve eğitim düzeyi değişkenlerine göre incelenmiştir. Araştırma 2022-2023 Eğitim-öğretim yılı Sakarya ili Hendek ilçesindeki kamuya ait ilkokul, ortaokul ve lise kademesinde görevli olan 428 öğretmenin gönüllü katılımıyla oluşmuştur. Araştırma sonuçlarına göre; öğretmenlerin okula yönelik tutum düzeyinin beşli likert derecelendirme ölçeğinde ikinci düzeye karşılık gelen “katılmıyorum” düzeyinde düşük olduğu görülmüştür. Öğretmenlerin okula yönelik tutum alt boyutları; okulun çekiciliği, bireysel doyum, benimseme ve okul iklimi ile cinsiyet, mesleki kıdem, okuldaki hizmet süresi, eğitim durumu değişkenleri arasında anlamlı fark bulunmazken; okul iklimi alt boyutu ile mesleki kıdem değişkeni arasında anlamlı fark bulunmuştur. Bu farklılık 10-19 yıl mesleki kıdeme sahip öğretmenler ile 20 yıl ve üzeri mesleki kıdeme sahip öğretmenler arasında olduğu, 10-19 yıl mesleki kıdeme sahip öğretmenlerin okul iklimi düzeylerinin 20 yıl ve üzeri mesleki kıdeme sahip öğretmenlere oranla daha yüksek olduğu görülmüştür. Öğretmenlerin okula yönelik tutum alt boyutlarından okulun çekiciliği, bireysel doyum, benimseme, okul iklimi arasında pozitif yönlü, orta düzey, anlamlı ilişki olduğu sonucuna ulaşılmıştır.
Balıkesir İli ve Çevresinin Gutenberg-Richter İlişkisi ve Depremselliğinin Bölgesel Dağılımı
Authors: Anadolu Kılıç Nazlı Ceyla
Published: April 2024

Bu çalışmada Balıkesir İli ve çevresinin (38.50º-40.50ºK-26.00º-29.00ºD) depremselliği ve depremsellik parametreleri belirlenmiştir. Bu amaçla 1900-2020 yılları arasında meydana gelen M≥3.0 olan deprem verileri Kandilli Rasathanesi ve Deprem Araştırma Enstitüsü deprem kataloğundan alınmıştır. Çalışma alanının tamamı için “b”, “Dc” ve olası-güvenilir “Mmak” değeri sırası ile b=1.17, Dc=2.22 ve Mmak=6.95 olarak belirlenmiştir. Detaylı depremsellik değerlendirilmesi yapılabilmesi ve depremsellik parametrelerinin uzaysal dağılımlarının haritalanabilmesi için çalışma alanı 0. 5°Kx0. 5°D olacak şekilde alt alanlara ayrılmıştır. “a” değeri 3.63≤a≤7.49, “b” değeri ise 0.73≤b≤1.55 aralığında hesaplanmıştır. “Mmak” değerlerinin ise 4.9≤Mmak≤7.6 aralığında değişim gösterdiği görülmüştür. Depremselliğin oldukça yüksek olduğu çalışma alanı içerisinde depremsellik açısından ön plana çıkan Balıkesir il merkezi ve yakın çevresi için 5.9≤Mw≤7.2 büyüklüğündeki depremlerin olası olduğu görülmektedir.
Synthesis and Characterization of Amido-Thiourea Based p-tert-butylcalix[4]arene Compound and Investigation of Transition Metal Complex Properties
Authors: Söyleyici Sevil
Published: April 2024

In host-guest complexes, the compatibility of the size and shape of the host cavity and the guest molecule is essential in the formation of the host-guest complex. Considered third-generation macrocyclic hosts, calixarenes attract the attention of researchers in supramolecular chemistry as they offer a wide range of applications in fields such as biocatalysis, enzyme analysis, pharmaceuticals, and biosensing. The synthesis of host molecules for anionic and cationic guest compounds has a very important place in coordination chemistry. Calixarenes are known as one of the important types of supramolecular compounds and are an important class of easily synthesized compounds that can act as a suitable receptors for cations, anions, and organic molecules. When calixarene compounds, which have an important place in host-guest chemistry, are derivatized appropriately, the coordination ability of the molecule against metal cations increases. These derivatizations gained importance due to the sensory properties of the molecule, and different studies were started considering that a larger cavity and functional group are required for more guest molecules. In this study, a new ligand of 1,3-disubstituted p-tert-butylcalix[4]arene derivative with increased donor atomic number with amide and thiourea groups in its structure was synthesized. Co(II), Ni(II), Cu(II), and Zn(II) complexes were synthesized with the compound and the structures of the compounds were characterized by UV-vis, FT-IR, 1H-NMR, 13C-NMR, and mass spectrometry.
Akış Tipi Çizelgeleme Problemlerinin Tavlama Benzetimiyle Çözümünde Rassal Aramanın Katkısı
Authors: Günday Gökay Görkem , Fığlalı Nilgün
Published: April 2024

Üretim yapılan bir işletmede üretim planlama ve çizelgeleme, mevcut kaynakların verimli olarak kullanılmasında önemli bir rol oynamaktadır. Bazı işletmelerde bu planlama ve çizelgeleme faaliyetlerinin başarısı bu faaliyetleri yapan kişinin öngörü ve deneyimlerini ne kadar kullanabildiğine bağlı olarak değişmektedir. Akış tipinde üretim yapan, birden çok ürün ve üretim ekipmanı bulunan ve farklı veya benzer rotalarda üretim yapan işletmelerde, işlerin manuel olarak çizelgelenmesi alternatif çözümlerin üretilmesi ve değerlendirilmesi sürecini zaman alıcı hale getirmektedir. Ayrıca çözümün optimum olma garantisi de bulunmamaktadır. Literatürde bu tür problemlerin optimum çözümü için çeşitli matematiksel programlama yöntemleri kullanılmaktadır. Problemdeki kısıtların, iş ve makine sayılarının artması durumunda makul sürede optimum veya optimuma yakın sonuçların elde edilmesi amacıyla sezgisel ve metasezgisel yöntemlere de ihtiyaç duyulmaktadır. Bu çalışmada ilaç üretimi gerçekleştiren bir işletmedeki akış tipi çizelgeleme probleminin çözümü tavlama benzetimi yöntemiyle yapılmakta ve rassal arama süreçlerinin yöntem performansına etkileri incelenmektedir.
Geri Dönüşümü Yapılmış Polipropilen ve Yüksek Yoğunluklu Polietilen Polimer Malzemesinin Izod Darbe ve Isıl Özelliklerinin Belirlenmesi
Authors: Şengül Ömer
Published: April 2024

Günümüzde, endüstrinin gelişmesiyle birlikte plastik malzemelerden üretilen ürün çeşitliliğinde de artış olmaktadır. Bu durumlarda plastik malzemelere olan ihtiyacın da hızla artmasına neden olmaktadır. Plastik malzemelerinin hammaddesinin sınırlı kaynak ve petrolden üretilmesi geri dönüşüm sisteminin kaçınılmaz olduğunu göstermektedir. Bu çalışmada, birincil geri dönüşüm kullanılarak beş kez geri dönüşümü yapılmış yüksek yoğunluklu polietilen (YYPE) ve polipropilen (PP) üretilen prototip malzemelerin özellik indeksi bazı termal ve mekanik özelliklerin tespiti için; ısıl deformasyon, eriyik akış endeksi, ızod darbe, özellikleri incelenmiştir. Izod darbe test sonucuna göre %8,08 azalma meydana geldiği, ısıl deformasyon sonucuna göre de % 31,04 iyileşme meydana geldiği gözlenmiştir. Sonuç olarak geri dönüşümü yapılmış numunelerin termal ve mekanik özelliklerinde önemli farklılıklar meydana geldiği gözlenmiştir.
Effects of Parent and Teacher Mediated Pivotal Response Treatment and Discrete-Trial Training in Improving Communication Skills of Children with Autism
Authors: Girma Dagmawi Alemnh , Hailu Belay Hagos , Malle Abebe Yehualawork
Published: April 2024

The main purpose of this study was to investigate the effects of parent and teacher-mediated pivotal response treatment and discrete-trial teaching in improving the communication skills of children with Autism. The research deployed an ABAB research design. ABAB was divided into 4 phases; A1, B1, A2, and B2. A1 was a baseline, B1 was treatment, A2 was the removal of the treatment, and B2 was the treatment resumed following the break, and at last, a follow-up was conducted. In the study, three children who fulfilled the inclusionary criteria participated. The three children received PRT and DTT from their parents and teachers respectively. The instruments used for assessment were social communication questionnaire-Lifetime, Autism diagnostic interview-revised, and Vineland -3 Adaptive behavioral scale (communication domain). The study result indicated that Parent and Teacher mediated PRT and DTT significantly improved the communication skills of children with ASD.
The Components of Multilevel Engagement Theory
Authors: Raza Muhmmad Hassan
Published: April 2024

This article presents the components (i.e., assumptions, concepts, and propositions) of the Multilevel Engagement Theory. Raza provided specific examples to describe the components of the theory and discussed these components in relation to the existing literature. The components of Multilevel Engagement Theory are also discussed in relation to three contemporary theories (i.e., family systems theory, feminist theory, and social exchange theory) to demonstrate similarities and differences between the Multilevel Engagement Theory and the other theories used in mainstream research. The author provided examples from his graduate level course assignments to further explain the componets of Multilevel Engagement Theory and demonstrate the use and application of this theory. The Multilevel Engagement Theory considers culture and diversity as the central aspects to the understanding of family relationships and functioning and provides researchers with a comprehensive conceptual framework to conduct research on contemporary families, understand multilevel phenomena, and explain complex real-life situations.
Factors affecting the Academic Performance of Elementary Learners under Nuclear, Extended, and Single Families
Authors: Hungo Melbert O. , Casinillo Leomarich F. , Jacobe Ghea , Getes Jea , Jusay Princess June Marieness , Bagtindon Rebecca
Published: April 2024

The primary objective of this investigation was to evaluate the various factors that impact the academic performance of students belonging to nuclear, extended, and single-parent families. The research methodology employed in this study was Descriptive Correlational Research Design. A purposive sampling technique was utilized to extract the sample consisting of pupils enrolled in grades 4, 5, and 6. Statistical techniques such as frequency count, percentage mean, standard deviation, and Spearman rank correlation were employed to analyze the collected data and to investigate the correlation between family structure and academic performance. The study identified Parental Education as an essential contributor to students' achievements in the context of this research. The results highlight the intricate interaction between demographic factors and academic performance, emphasizing the need for customized educational policies and interventions that cater to various family models. Hence, it is concluded that the findings emphasize income's pivotal role, especially within Single-Parent profiles, impacting academic outcomes. Parental education significantly influences students' achievements, revealing the intricate interplay of demographics and academic performance. Hence further, recommendations were tailored educational policies targeting economic support, parental engagement, and diverse family structures are crucial for effective interventions and optimal academic outcomes.
Community-Based Drug Rehabilitation Clients’ Motivation, Satisfaction and the Factors Affecting their Completion of the Rehabilitation and Aftercare Program: A Convergent Mixed Methods Study
Authors: Walag Angelo Mark P. , Melliza-Descallar Rhyselle Bernadette , Patana Jaymar T. , Hechanova Maria Regina
Published: April 2024

This study examined treatment motivation, clientele satisfaction, and the factors affecting enrollment and completion in community-based drug rehabilitation and aftercare programs in the Philippines. A convergent mixed methods research design was employed using a survey and qualitative focus group discussions. Both on-going and completed clients had high level of internal motivation towards treatment and were highly satisfied with the program. Clients reported internal and external factors influenced their completion of the rehabilitation program while their satisfaction determined the areas that require necessary improvements. Aside from internal and external motivation, the general structure of the program, competence of facilitators, government and community support, and complementary intervention serve as influential factors.
Exploring Contextual Factors Affecting Student Performance in Mathematics: A Sequential Explanatory Research
Authors: Bascones Gabriel Y. , Yunzal, Jr. Ananias N. , Casinillo Leomarich F.
Published: April 2024

This study aimed to explore and characterize the contextual factors that affect academic performance in learning mathematics among high school students. The study employed an explanatory sequential mixed method research design, and primary data were collected with the aid of the adopted questionnaire for quantitative data, and the interview was done for qualitative data. The study used descriptive and inferential statistical methods in analyzing and interpreting the gathered data. In addition, qualitative data were analyzed through a thematic analysis approach. Results showed that the performance of students in mathematics is influenced by different factors such as students' attitudes towards mathematics, self-efficacy, parental support, and the learning environment. In addition, a thematized interview with the students supports the quantitative analysis that their performance in mathematics was governed by the said factors. Conclusively, students must be supported in their learning by providing doable tasks and exciting problems in mathematics to boost their attitude and self-efficacy. Parents are also advised to give them the appropriate support to motivate them in their studies. Moreover, teachers must integrate welfare and positive attitudes towards students to have a conducive learning experience.
Defense of dissertations on international issues in the special councils of Belarus in 1991–2021
Authors: Huryn A. V.
Published: May 2024

The article is devoted to the analysis of the effectiveness of defending dissertations on international issues in Belarus in 1991–2021, as well as the general characteristics of the topics of dissertations on the specialties “History of international Relations and foreign policy”, “International law. European Law”, “Political problems of international relations, global and regional development” and related.
FUNCTIONAL ASPECTS OF MEMORY AND FORGETTING
Authors: Volobuev A. , Romanchuk P. , Romanchuk N. , Krasnov S. , Davydkin I.
Published: April 2024

On the basis of the synaptic connections dynamics between the neurons the processes of occurrence of memory, forgetting and appearances of the new information in a human brain are considered. It is marked, that the huge quantity of the synaptic connections inevitably results to them instability. Forgetting information in norm it is defined by the break of synaptic connections, and memory information it is connected to restoration of these connections. In norm there is a speed balance of these processes. However, if the torn synapse is reconnected to the spine of another neuron, the new information may appear in a brain. As consequence the forgetting the previous information is possible. It is essence of creative process. A savant syndrome and autism are connected to excessive durability of the synaptic connections that results in absence of creative abilities. The impossibility of described dynamics of a brain work technical modelling, i.e. creation of a full-fledged artificial intellect is marked. Some genetic-molecular aspects of the synaptic connections restoration are considered.
DISEASES OF THE AORTA IN PREGNANT WOMEN
Authors: Taradin G. , Kartamysheva E. , Rakitskaya I.
Published: April 2024

Aortopathy in pregnant women is caused by genetically determined connective tissue dysplasia (Marfan, Ehlers–Danlos, Loyes–Dietz syndromes, etc.). The most severe complication is aortic aneurysm and its dissection with a probability of fatal outcome. The key to preventing this complication is frequent repeat imaging (ultrasound is the method of choice) and interdisciplinary collaboration, planning and coordination of antenatal care, labor management and postnatal care.
ELECTRONEUROMYOGRAPHY AS ONE OF THE METHODS OF DIAGNOSTICS OF PATHOLOGIES OF DIFFERENT GENESIS (LITERATURE REVIEW)
Authors: Morozov A. , Sorokovikova T. , Naumova S. , Kryukova A.
Published: April 2024

Modern possibilities of using the auxiliary method of electroneuromyography (ENMG) research by narrow specialists are multifaceted. This is primarily due to the safety and wide range of its use in clinical practice. Thus, diagnostics of the speed and time of the nerve impulse to organs and tissues, as well as the ability of the muscular apparatus to respond to stimulation of nerve endings is increasingly used in neurological, coloproctological, urological, surgical, endocrinological, pediatric specialties, in occupational medicine. The heterogeneity of the use of electroneuromyography in clinical medicine allows to identify functional and organic pathologies of the nervous and muscular apparatus, the causes of their occurrence and further development, the extent of the spread of the pathological process, as well as to establish the stages of the detected violation and assess possible risks for the subsequent life of patients. This is achieved by determining the main parameters of individual motor units that are functional elements of each skeletal muscle: shape, amplitude, duration, latent period of evoked potentials and analysis of spontaneous activity of the muscle fiber. Interpretation of the data obtained together with clinical manifestations of neuromotor diseases and with the results of additional research methods allow clinicians to make the correct diagnosis and choose the necessary tactics for managing patients with neuromuscular pathology.
Substance use among young people during the COVID-19 pandemic
Authors: Amlaev K. , Mazharov V. , Kravchenko O. , Zafirova V. , Khubieva D.
Published: April 2024

The article discusses issues reflecting the use of psychoactive substances among young people during the COVID-19 pandemic. Adolescence is an important stage of development, during which the foundation is often laid for future patterns of substance use. Both the amount and frequency of use during this period are closely related to the risk of excessive use and substance abuse in adulthood. The use of alcohol, tobacco and other drugs in youth worsens psychological and neurocognitive development and increases the risk of academic failure, chronic and mental illnesses. Thus, the prevention of substance use among young people remains an important public health priority worldwide. Effective strategies should include educational campaigns, psychological support, and access to quality medical care. In addition, it is also necessary to provide youth with opportunities for an active lifestyle so that they can find alternative ways to relax and overcome stress. The support and care provided by parents, family and friends, as well as the structure, supervision and support provided by teachers and school staff, also play an important role.
ARTERIAL HYPERTENSION AS A COMPONENT OF METABOLIC SYNDROME IN MEN IN AN OPEN URBAN POPULATION
Authors: Kayumova M. , Bessonova M. , Troshina I. , Akimov A. , Petelina T. , Lebedev E. , Akimova E.
Published: April 2024

Purpose. To determine blood pressure (BP) levels and the prevalence of arterial hypertension (AH), as a component of metabolic syndrome, in men of an open urban population aged 25–64 years. Materials and methods. A one-time epidemiological study was conducted on a representative sample of men 25–64 years old, formed from the electoral lists of citizens of the city of Tyumen in the amount of 1000 people, the response was 85.0%. To analyze the prevalence of AH as a component of the metabolic syndrome, the NCEP ATP III (2004), IDF (2005), All-Russian Scientific Society of Cardiology (2009) assessment criteria were used. Results. The levels of systolic BP in men of the Tyumen population were high due to the average age groups of 35–44 and 45–54 years; in the same groups there was a significant increase in the average values and percentile distribution of the trait. According to the levels of diastolic BP in men of the Tyumen population, a directional age trend of the indicator was formed with a significant increase in its levels in each subsequent age group. In terms of the prevalence of AH, the standardized indicator in the male population of Tyumen 25–64 years old was 59.8%; a positive relationship was established with age in the younger and older age categories. Conclusion. Thus, the study results obtained in an open urban population, which identified the most vulnerable age categories of men with regard to the development of metabolic syndrome, represent a scientific basis for the formation of a preventive program in the region.
Anti-ischemic and cardiometabolic therapy in cardiovascular pathology
Authors: Khabibulina M. , Elistratov D. , Shamilov M.
Published: April 2024

The purpose of this study was to study the effect of Kardioton therapy on myocardial ischemia in patients with arterial hypertension. The drug Kardioton is a natural cardioprotector; strengthens the heart muscle by improving its oxygen supply, stops inflammatory processes in the myocardium; has anti-ischemic, cardiometabolic, hypotensive effect. It is recommended for disorders of the cardiovascular system, with increased physical activity. Based on the conducted research, it can be concluded that Kardioton is well tolerated by patients and is an effective treatment: cardiometabolic and anti-ischemic effects due to normalization of cardiomyocyte metabolism have been obtained.
Treatment and prevention of venous thromboembolic complications: focus on sulodexide
Authors: Rodionova I. , Vinogradova M. , Skvortsova E. , Skvortsov V.
Published: April 2024

Venous thromboembolic complications (VTEC) are a common pathology that includes pulmonary embolism and deep vein thrombosis of the lower extremities. Modern drug therapy for VTEC includes taking anticoagulants, which reduce the risk of VTEC recurrence to 1–2% of cases. The article discusses the drug sulodexide, which belongs to the class of heparinoids. Sulodexide is a relatively safe drug that has anti-inflammatory and antithrombotic effects, reducing the release of cytokines, chemokines and growth factors, as well as proteinases and degrading enzymes. When taken orally, there is no pharmacological interaction with substances aimed at treating vascular diseases, so it can be prescribed to patients with concomitant diseases.
Prehospital diagnosis of ischemic stroke (literature review)
Authors: Baranova A. , Zmeeva E. , Mirzaeva S.
Published: April 2024

Ischemic stroke is a major medical and social problem, as it is characterized by high rates of morbidity, disability and mortality. Non-invasive diagnostic methods, such as magnetic resonance and computed tomography, make it possible to visualize this pathology and, based on the results obtained, formulate a diagnosis in order to prescribe appropriate therapy for effective treatment and improve the prognosis of the disease. In recent years, the concept of prehospital diagnosis of ischemic stroke has been introduced, including mobile ultrasound machines for ultrasound examination of cerebral perfusion, as well as mobile stroke units (MSU). It was found that treatment in the MSU, including prehospital imaging, resulted in significantly better clinical outcomes, both because of early initiation of systemic thrombolysis in the golden hour and because of improved triage of patients for subsequent endovascular thrombectomy. Further financial and economic evaluation of mobile stroke units is needed, including the analysis of the cost-effectiveness of the investment project and the possibilities of introducing this innovative approach to stroke diagnosis and treatment in Russia.
Clinical effectiveness of emollients with 30% urea and antiseptic Dorogov's stimulator in liposomal form in the complex therapy of chronic dermatoses
Authors: Tlish M. , Naatyzh Zh. , Kuznetsova T. , Shavilova M.
Published: April 2024

One of the modern trends in the study of the protective barrier of the skin is the study of the dynamics of the skin process. As a result of the active inflammatory process, a decrease in moisture levels occurs, a violation of the hydrolipid mantle of the skin and a decrease in natural moisturizing factors. The formation and maintenance of a protective skin barrier is an important pathogenetic tool in the treatment of inflammatory dermatoses. Chronic dermatoses often require regular topical therapy, so safe, convenient and effective topical regimens with good cosmetic properties can be very beneficial for this group of patients. Moisturizing and barrier-restoring formulations are clinically recognized as valuable topical treatments for patients with chronic dermatoses.
Effect of water-methanol binary solvent system in green synthesis of copper nanoparticles with tobacco leaf extract
Authors: Suharto Tomi , Sudirman Sudirman , Ulfa Maria , Ningsih Baiq Nila Sari , Putri Khoiria Nur Atika , Thamsiri Panthong
Published: May 2024

The increasing demand for environmentally friendly nanoparticle synthesis, as a viable strategy for pollution control, has prompted an exploration of green chemistry methods. This study meticulously investigates the synthesis of copper nanoparticles utilizing tobacco leaf extract obtained through both cold and hot extraction techniques. The primary focus lies in scrutinizing the impact of various solvents employed for plant extracts and metal ion solutions on reduction dynamics and particle size. The study employs UV-Vis and phytochemical analyses to discern differences in chemical composition and efficacy, particularly between the water and methanol-water systems, despite their resemblance in UV-Vis spectra. Intriguingly, the results unveil that the choice of solvent significantly influences the particle size distribution and stability of colloidal nanoparticles. The methanol-water system, in particular, yields smaller, more uniform particles compared to other solvent systems. This research sheds light on the pivotal role of solvent selection in nanoparticle synthesis, emphasizing its profound impact on both the reduction process and the resulting particle size distribution. The findings underscore the nuanced relationship between solvent choice and the characteristics of the synthesized nanoparticles, providing valuable insights for optimizing environmentally friendly synthesis methods. Ultimately, this study contributes to the growing body of knowledge on green chemistry approaches for nanoparticle synthesis with implications for pollution control and sustainable materials production.
Aspek Patofisiologi Meningitis Tuberkulosis dan Tuberkuloma
Authors: Iswari Putu Wika Pramesti , Widhiani Ni Putu Visty , Akelba Shalsa Damai , Pradhini Tri Sastra , Harahap Herpan Syafii , Gunawan Stephanie Elizabeth , Wahyudi Safat
Published: April 2024

Tuberkulosis (TB) hingga saat ini masih menjadi masalah kesehatan di dunia. Tuberkulosis merupakan penyakit infeksius dengan tingkat mortalitas yang tinggi meskipun untuk penyebarannya dapat dicegah. TB dapat menimbulkan komplikasi lain salah satunya adalah meningitis TB. Mekanisme penyebaran bakteri TB melalui pembuluh darah ke organ lain dipengaruhi oleh sistem imun. Bakteri TB menggunakan mekanisme â€œtrojan horseâ€ untuk masuk ke blood brain barrier (BBB). Pada sistem saraf pusat, terdapat aktivitas imun yang akan melawan bakteri TB dan membentuk tuberkuloma atau rich foci. Apabila rich foci ini ruptur, bakteri TB akan dilepaskan ke ruang subarachnoid atau sistem ventrikel menyebabkan terjadinya meningitis TB.