bluuebunny/crossref_metadata_2025 huggingface dataset:
Existence of solutions for a hyperbolic Kirchhoff-type problem with a volume constraint
Authors: Bentata Fatima Ezahra , Mokhtari Abdelhak , Boumaza Nouri
Published: August 2024

In this study, we investigate the existence of weak solutions for a hyperbolic Kirchhoff-type problem constrained by volume. Our research is motivated by the complex nature of such problems, which involve non-local terms arising from the Kirchhoff term and the volume constraint. These non-local terms introduce significant challenges, complicating the application of traditional analytical methods and necessitating the development of innovative approaches for resolution. To address these challenges, we leverage the hyperbolic discrete Morse flow, a powerful framework that allows us to adapt traditional techniques to the unique characteristics of our problem. This framework is particularly suited for handling the intricacies of non-local terms and offers a structured way to examine the interplay between these terms and the volume constraint. Our approach includes a rigorous mathematical analysis combined with the development of novel techniques specifically designed to manage the complex interactions within the system. Through this comprehensive methodology, we aim to establish the necessary conditions under which weak solutions can exist for the given hyperbolic Kirchhoff-type problem. The findings from this study provide new insights into the behavior of such systems, potentially contributing to advancements in the broader field of partial differential equations and applied mathematics.
Development of the triaxial equipment: a state of art
Authors: Boudia Amel , Boudia Smahia , Berga Abdelmadjid , Hussain Syed Khaliq
Published: August 2024

Triaxial shear testing is one of the most crucial investigations in geotechnical laboratories. It is essential for designing specific projects and understanding soil behavior in geotechnical engineering. Since Casagrande developed the modern shear apparatus at Harvard University, it has been refined to provide a more accurate characterization of shear strength behavior. This research paper aims to offer a concise overview of triaxial equipment development, focusing on apparatus that is easy to set up, prepare, and operate reliably, while remaining cost-effective. The primary objective is to contribute to the accurate determination of suitable techniques and devices that meet specific testing objectives. We review the theoretical background of both the triaxial apparatus and the direct shear box and illustrate the basic working principles of various volume change measurement techniques using triaxial devices. We also present different operational principles employed in designing volume change devices for soil testing. Our analysis reveals that some of these devices require complex operational techniques and equipment, making them challenging to use for repetitive testing. Consequently, we conclude that the ideal volume change device for soil mechanics testing should prioritize robustness and ease of operation.
Revisão crítica do traumatismo cranioencefálico pediátrico: aspectos fisiopatológicos, diagnósticos e avanços terapêuticos
Authors: Oliveira Carlos Walmyr de Mattos , Guimarães Edilson Misael , Rodrigues Thamy Braga , Guimarães Matheus Queiroz , Wilhelms Diene Landvoigt , Oliveira Diêgo Ferraz , Schwartz Eduarda Gava , Caldas Eliseu Ribeiro , Freitas Cendi da Cruz Oliveira de , Rodrigues Bruna Braga , Silva Larissa Juliana Patrocínio da , Takeda Junior Nelson Massaru , Campos Antônio Lopes , Martins Duan Franks Cabral
Published: August 2024

O traumatismo cranioencefálico (TCE) é uma das principais causas de morbidade e mortalidade em crianças globalmente, com uma ampla gama de lesões variando de concussões leves a danos graves devido à imaturidade do cérebro infantil. Este artigo revisa a literatura existente sobre TCE pediátrico, abordando aspectos fisiopatológicos, diagnósticos e terapêuticos, e sugere direções para futuras pesquisas. Foi realizada uma revisão sistemática de estudos publicados entre 2000 e 2023, incluindo ensaios clínicos, estudos observacionais e revisões, com busca em bases de dados como PubMed e Scopus e filtros para assegurar a inclusão de estudos revisados por pares. A análise dos dados revelou que o TCE é uma causa significativa de morte e sequelas em crianças, especialmente nas faixas etárias de 0-4 anos e 15-19 anos. As lesões comuns incluem contusões, hematomas e lesões axonais difusas, com edema cerebral e hemorragia intracraniana frequentemente observados. A tomografia computadorizada (TC) é a principal ferramenta diagnóstica, sendo eficaz para a detecção inicial de lesões, enquanto a ressonância magnética (RM) é útil para identificar lesões menos visíveis e complicações tardias. Avanços recentes em terapias incluem o uso de agentes anti-inflamatórios e técnicas neurocirúrgicas minimamente invasivas, que mostram potencial para melhorar os resultados clínicos. Apesar desses avanços, a pesquisa contínua é necessária para otimizar diagnósticos e tratamentos, refletindo a complexidade do TCE pediátrico e a importância da inovação tecnológica e terapêutica para o manejo eficaz das crianças afetadas.
Peningkatan Keterampilan Guru PAUD Dalam Membuat Media Pembelajaran Berbasis Animasi Powerpoint
Authors: Sutrisno Ahmad Budi , Fauziah Fauziah , Razak Firdha
Published: August 2024

Permasalahan yang akan diselesaikan dalam kegiatan Pengabdian ini adalah rendahnya Keterampilan guru PAUD dalam membuat media pembelajaran animasi untuk pengajaran Bahasa Inggris. Pelatihan adalah salah satu upaya untuk meningkatkan kompetensi guru PAUD, salah satunya keterampilan membuat media pembelajaran animasi. Tujuan dari Pengabdian Kepada Masyarakat ini adalah untuk menelaah dampak pelatihan pembuatan media pembelajaran animasi berbasis Powerpoint terhadap Keterampilan guru PAUD dalam membuat media pembelajaran animasi untuk pengajaran Bahasa Inggris. Pengabdian Kepada Masyarakat ini menggunakan metode kualitatif deskriptif. Peserta yang terlibat dalam Pengabdian ini terdiri dari 29 Peserta yang berada dalam tahap pendahuluan, dan 14 Peserta sebagai peserta pelatihan. Hasil Pengabdian Kepada Masyarakat diketahui bahwa pelatihan yang dilakukan dapat meningkatkan keterampilan guru Paud dalam membuat media pembelajaran animasi berbasis Powerpoint sehingga mereka dapat mengembangkan media pembelajaran tersebut dalam pengajaran Bahasa Inggris
Pendampingan Aplikasi Quizalize untuk Meningkatkan Pemahaman Pembuatan Penilaian Pembelajaran Bagi Guru-Guru MGMP IPA Kota Palopo
Authors: Yanti Rosmalah , Hamdani Ulfah Zakiyah
Published: August 2024

Berdasarkan hasil angket yang diisi oleh guru MGMP IPA Kota Palopo diperoleh 44,44% menyatakan cukup terampil dalam menggunakan teknologi dalam penyusunan bahan ajar IPA, salah satunya penilaian. Oleh karena itu, tim KKN berupaya untuk mengatasi permasalahan tersebut melalui kegiatan pelatihan pembuatan asesmen pembelajaran IPA berbasis teknologi dengan menggunakan aplikasi Quizalize. Pelatihan ini bertujuan untuk meningkatkan pengetahuan dan keterampilan guru MGMP IPA dalam membuat penilaian pembelajaran IPA berbasis teknologi. Pelatihan akan dilaksanakan dalam 3 sesi secara hybrid, terdiri dari 1 sesi melalui Zoom dan 2 sesi tatap muka. Metode yang digunakan dalam pelatihan ini terdiri dari 4 sesi tahapan yang meliputi perencanaan, tindakan, observasi/evaluasi, dan refleksi. Berdasarkan angket evaluasi dapat disimpulkan bahwa peserta memahami dan dapat membuat media pembelajaran dengan mencapai skor 75,08% dan mendapat respon positif.
Pelatihan Pembuatan Robot Light Follower Di Pondok Pesantren Nurul Jadid Bua
Authors: Amri Ariani , Mustakim Risda , Rismawati Rismawati , Arpin Risal Mantofani
Published: August 2024

Pendidikan telah menjadi fokus utama dalam menyikapi era digital dan kemajuan teknologi. Di era teknologi modern saat ini, robotika merupakan bidang yang berkembang pesat. Robotika mencakup pengembangan, desain, dan penggunaan robot. Dalam konteks pendidikan, robotika tidak hanya mengajarkan keterampilan teknis tetapi juga merangsang pemikiran kritis, pemecahan masalah, dan kolaborasi. Sebagai lembaga pendidikan Islam, penting juga untuk mempersiapkan generasi muda dengan keterampilan teknologi yang relevan dengan melibatkan siswa dalam pelatihan robotika untuk mengembangkan keterampilan teknologi, kemampuan memecahkan masalah, dan kerja sama tim. Pengadian ini bertujuan untuk meningkatkan pemahaman siswa tentang konsep robotika dan keterampilan teknis terkait. Metode pelatihan yang digunakan antara lain pengenalan teori dasar robotika, pembuatan robot fisik, dan pemanfaatan sensor cahaya. Pengabdian ini melibatkan santri Pondok Pesantren Nurul Jadid Bua.
Pelatihan Bahasa Inggris Menggunakan Travel Guide Book Sebagai Pengembangan Pariwisata
Authors: Hambali Uyunnasirah , Nasir Nasir
Published: August 2024

Peranan bahasa dalam pariwisata sangatlah besar, mengetahui pengetahuan pariwisata khususnya tentang objek dan daya tarik merupakan suatu wawasan penting bagi masyarakat yang tinggal di kawasan wisata. Berdasarkan observasi awal, tim pengabdian masyarakat mengamati bahwa sumber daya manusia di Desa Rammang-Rammang belum mengembangkan kemampuan dalam mempromosikan pariwisata, khususnya dalam bidang komunikasi. Contoh sederhananya, ketika ada turis asing yang menanyakan arah atau menanyakan arah tempat menginap, warga sekitar masih kesulitan dalam menjelaskannya. Terkait permasalahan yang didapat tim pengabdian dari observasi awal di lapangan, tim melaksanakan pelatihan bahasa Inggris untuk mengembangkan penguasaan bahasa asing bagi warga di Desa Rammang-Rammang, Kab Maros. Tim pengabdi memberikan pelatihan kepada siswa SMP dan SMA untuk melatih kemampuan bahasa Inggrisnya. Siswa SMP dan SMA yang terlibat dalam pelatihan ini berjumlah 30 orang. Hasil dari pelatihan ini menunjukkan tingginya minat dan motivasi siswa yang diberikan pelatihan. Selanjutnya, setelah melalui beberapa sesi pelatihan, siswa mampu berlatih percakapan sederhana seperti memperkenalkan diri, menunjukkan petunjuk arah tempat wisata, dan menawar harga oleh-oleh. Pelatihan ini juga diharapkan dapat menghasilkan suatu produk yaitu panduan yang dapat digunakan oleh masyarakat yang berisi percakapan sederhana dalam bahasa Inggris dalam hal pariwisata.
Regional Development of Rural Communities: Vitalin Leading to Up-Gradation
Authors:   Pedagogy and Organizational Culture in Nursery Schools, Delhi University, New Delhi, India., Kapur Dr. Radhika
Published: August 2024

The main objective of this research paper is to acquire an efficient understanding of meaning and significance of regional development. Within rural communities, there are number of factors, which need to be developed in order to lead to progression of rural individuals and overall communities. These are, system of education, employment opportunities, medical and health care facilities, infrastructure, amenities and various types of facilities. The individuals in leadership positions are required to formulate different types of programs, which are necessary in promoting enhancement of all these factors. One needs to acquire an efficient understanding of the inconsistencies and bring about improvements. The generation of awareness in terms of different factors and management of financial, technical, human, material and information resources are regarded to be of utmost significance. The individuals, belonging to rural communities are dependent on natural environmental conditions. Hence, they need to ensure, they make use of resources in an effective manner and prevent wastage. Putting emphasis on regional development is facilitating in leading to up-gradation of rural individuals and communities. As a consequence, individuals will have access to all the facilities and will contribute efficiently in bringing about improvements in one’s overall quality of lives. Therefore, it is well-understood, regional development of rural communities is vital in leading to up-gradation. The main concepts that are taken into account in this research paper are, understanding the meaning and significance of regional development and measures to be implemented in promoting regional development.
Analysis of the Strategy of Real Estate Promotion Combined with Internet Media Methods --- Take the Example of Country Garden Holdings Company Limiteds Online Live Broadcasting
Authors: Yang Ruizhi
Published: August 2024

The main research direction of this paper is the combination of modern Internet media methods and real estate promotion, and the marketing and promotion methods of Country Garden Holdings Company Limited's online live broadcasting as an example for in-depth discussion, to develop a case study paper. This article is mainly divided into the following parts: firstly, it introduces the background of Country Garden Holdings Company Limited as a real estate developer and the development history of online live promotion activities. Second, it analyzes the current trend of combining the promotion methods of the real estate industry with Internet media, and discusses the impact of this combination on the industry. Subsequently, the implementation process of online live broadcasting in BGG is described in detail, including the selection of live broadcasting content, platform strategy and other aspects. In addition, the advantages and challenges of online live broadcasting are analyzed, focusing on the advantages in terms of high interactivity and user participation, as well as the challenges in terms of content quality control and user participation. Finally, through collecting user feedback and evaluating the effect, the successful case of BGG's online live broadcasting activities is analyzed, and suggestions for future development trends and real estate promotion strategies are put forward. This paper aims to provide reference and inspiration for the promotion strategies of real estate enterprises in the field of Internet media.
The Transformation of Luxury Brands Marketing Strategies in Social Media
Authors: Li Qiuyu
Published: August 2024

The luxury industry is currently undergoing a significant transformation driven by digitalization. Consumer shopping behaviors are increasingly shifting towards online channels, while social media emerges as a key platform for interaction between luxury brands and consumers. The rise of emerging markets and the growing young consumer demographic are driving the trend of digital consumption. Luxury brands are actively expanding into the digital sphere, employing celebrity endorsements and social media marketing strategies. This paper utilizes a literature review and case analysis methodology. It finds that combining celebrity endorsements with social media marketing effectively enhances brand awareness and sales, creating a unique brand image and attracting more consumers. This trend has become a crucial transformation path for the luxury industry, albeit brands need to carefully consider celebrity selection and risk management. Future research could further explore best practices in celebrity endorsements and social media marketing, as well as their long-term impact on consumer behavior and brand benefits.
Research on Multi-round First-price Sealed Bidding Strategy Based on Bidders' Incomplete Information Game
Authors: Lyu Kexin
Published: August 2024

Bidding mechanisms are essential for the market and policies because bidding patterns have an impact on economic rationality and are crucial for the functioning of the construction industry. Thus, this paper consolidates the findings from the multiple rounds of combinatorial auctions, the winners curse in incomplete information auctions, and game theory. There is no doubt that bidding mechanisms play an important role in markets and policies in economic activities. This paper's related topics of interest would be multi-round combinatorial auctions, winners curses in project bidding, and game theory in incompletely informed auctions. This paper reviews the literature and employs the models based on the Nash equilibrium. There are many types of bidding strategies such as first, second, and successive bid bidding strategies, cooperative bidding, non-cooperative bidding, and how information asymmetry plays a critical role in these strategies. As mentioned before, criterion-based adaptive bidding strategies are not sensitive to market conditions and can provide near-optimal solutions. In the same way, iterative learning also prevents the occurrence of the winners curse in the multi-stage bidding context. UK auctions are seen as more efficient relative to other locations because information costs are lower, while game-theory-based strategies improve mechanisms for obtaining tasks and cost optimization in mobile crowdsourcing tasks. The use of electronic auctions can help a market become more fully rational and efficient. The methodology of game theory helps explain the outcomes of auctioning and emphasizes innovations in automation as well as policies. Therefore, this paper's implications are significant to the current and ongoing literature on efficiency, strategic behaviour, and policy in bidding mechanisms across different markets.
Current Situation, Problems and Suggestions of Agricultural Futures Market in China
Authors: Jiang Chengxuan
Published: August 2024

The agricultural futures market occupies a central position in China's financial landscape, wielding substantial influence over the sustainable development of the national economy. Apart from its core roles in price discovery and risk management for agricultural products, this market acts as a catalyst for efficient allocation of resources and continuous financial innovation. Furthermore, it enhances market liquidity and amplifies China's global economic impact. As China's financial sector matures, the agricultural futures market will continue its dual role of bolstering agricultural prosperity and financial dynamism, despite encountering various challenges. This study explores the present state of China's agricultural futures market, evaluating metrics such as total market turnover and penetration. Analysis identifies several critical issues, including inadequate liquidity, susceptibility to market manipulation, speculative activities, and uncertain economic policies. To address these challenges, the paper proposes targeted strategies. The research outcomes carry significant implications for nurturing the sustainable and resilient growth of China's agricultural futures market.
Rise of the Gig Economy and Its Business Models
Authors: Sui Wenlong , Ding Tongye
Published: August 2024

The gig economy, characterized by the proliferation of short-term, freelance, and independent work arrangements, has undergone a remarkable ascent in recent years. This paradigm shift in the labor market is reshaping the way people work and businesses operate. This article delves into the gig economy, tracing its historical roots. It illustrates how the gig economy transitioned from the fringes to the mainstream and discusses how the B2B (business-to-business) and B2C (business-to-consumer) models have shaped the current gig market.
The Impact of Leave Length on After Leave Experience under Family and Medical Leave Policy in the U.S.
Authors: Sun Jiayue
Published: August 2024

This research examines employee experiences under the Family and Medical Leave Policy in the United States and to what extent the length of leave affects the post-leave employment experience. The data source comes from the Family Medical Leave Act Employee Survey, which was conducted by the U.S. Department of Labor in 2018. This research further investigates whether females are more likely to be discriminated against than males and whether the eligibility of FMLA would decrease the possibility of being treated differently. Three hypotheses were 1) the longer leave one takes, the higher the possibility of being treated differently; 2) females have a higher possibility than males of being treated differently; and 3) FMLA-eligible employees have less possibility than their counterparts of being treated differently. This study found that longer leave length is associated with a higher possibility of being treated differently. Another important finding is that females have a higher possibility than males of being treated differently after controlling for other factors. Also, this study suggests that there is no significant difference between FMLA eligible groups and non-FMLA eligible groups. This study discussed policy implications regarding the length of most recent leave and gender, including the need to expand the length and types of family leave coverage, the need for government-mandated paid leave, and approaches for increasing employee knowledge of leave rights.
Marketing Strategies for Financial MCN Institutions in the Era of Integrated Media
Authors: Xi Ruofei
Published: August 2024

The rapid convergence of multiple types of information carriers in the era of integrated media has given rise to the immediate popularity of short-form videos while enhancing the speed and quality of information dissemination, and the Multi-Channel Network (MCN) Institutions behind them have emerged. With the growth of residents' wealth and the increase in demand for investment and financing, MCN institutions focusing on the financial field are attracting more and more attention from the market. Studying the marketing strategies of financial MCN institutions can help improve their business model and is of great significance in promoting the healthy development of investor education. In this paper, we focus on traffic conversion as an essential link in marketing, summarize the common traffic conversion strategies of financial MCN institutions, analyze the case study of JF Wealth Holdings Ltd., and finally provide corresponding strategic suggestions in terms of customer positioning, traffic retention, traffic conversion, and so on.
The Influence of RMB Settlement Globalization on the Political and Economic Evolution of Singapore Amidst US-China Rivalry
Authors: Peng Xinyan
Published: August 2024

At the dawn of the 21st century, the ascending comprehensive national strength of China has significantly bolstered the role of the RMB in global economic transactions, thereby expediting its international settlement globalization. This development, unfolding within the framework of an increasingly interconnected global economy, profoundly impacts Singapore. Positioned as a crucial trading partner and geographical neighbor to China, while simultaneously serving as a vital security ally of the United States in Asia, Singapore's political and economic landscapes are witnessing transformative shifts. This paper endeavors to meticulously examine and elucidate the specific impacts of RMB settlement globalization on Singapore's political and economic dimensions. Moreover, it aims to explore the potential challenges and opportunities that these impacts may engender for Singapore in the near future, particularly against the backdrop of the US-China competition. The analysis of how the global proliferation of RMB settlement is reshaping Singapore, alongside the nature and direction of this influence amid the strategic rivalry between the US and China, is of paramount importance. It provides deep insights into the evolution of the global political-economic order and assists in formulating strategies for middle-tier nations like Singapore within the changing regional dynamics. By offering a detailed understanding of these developments, this study acts as an essential guide for navigating crises, capitalizing on developmental opportunities, and actively participating in regional affairs.
Trend Analysis of Enterprise Intelligent Financial Applications
Authors: Zhang Yanru
Published: August 2024

Recently, intelligent financial applications have been regarded as an important pillar of enterprise development and will play a significant contribution to the progress of future enterprises. Enterprises need to make continuous progress and adapt to the rapidly changing social environment with high competitiveness, and finance, as an indispensable part of enterprise development, needs to make great progress. With the continuous development of digital transformation, intelligent finance has become an important driving force for enterprise development, and is widely used in information processing, personnel management, market analysis, business management, etc. The purpose of this paper is to explore the sustainable impact of intelligent finance on enterprise development, including the application of financial intelligence, financial shared development, data analysis and management, etc., and comprehensively sort, analyze and summarize the relevant research through the method of literature review. In addition, it provides reasonable suggestions for the future development direction of enterprise finance, so that enterprises can gain competitive advantages from intelligent financial applications, improve company efficiency, and achieve good and long-term development.
The Study of an Urban Social Resilience Evaluation Index System under the Context of Public Health Emergencies
Authors: Li Li , Wu You
Published: August 2024

This paper focuses on urban social resilience under the context of public health emergencies. It constructs an evaluation index system based on the theories of resilience and urban resilience, urban and social vulnerability, system coupling and coordination, risk and chaos, as well as a review of the current state of domestic and international research. A BP comprehensive evaluation model was established and applied. The study found that among 21 cities, except for Shanghai, Beijing, Shenzhen, Chengdu, Nanjing, and Hangzhou, the social resilience levels of the remaining 15 cities are below the average level.
Prediksi Data Produksi Menggunakan Regresi Linear Sederhana
Authors: Napitupulu Segar , Siagian Novriadi Antonius
Published: August 2024

PT. XYZ is a company engaged in the cold forging of automotive metal parts specialists. Companies must meet distribution needs and are required to make the right decisions in determining production strategies. To do this, companies need quite a lot of information sources to be analyzed further. Which, companies also face difficulties in obtaining strategic information such as sales levels per period or best-selling products. The analytical method uses simple linear regression in the prediction system because simple linear regression analysis can predict time series. The results of the analysis on the Collar 17x10.5x11 product were obtained from predictions from January to December 2020 with an error rate of 3.78%. The Nut AM M12x14x12 product obtained prediction results from January to December 2020 with a rate of 12.53%. The Collst product 23.6x16.3x3 obtained prediction results from January to December 2020 with a rate of 5.43%. For Nipple products from January to December 2020 with a rate of 12.14%
Perencanaan Enterprise Architecture Sistem Informasi pada Akademik: Studi Literatur
Authors: Phan Nando , Kristianto Aditya , Kendrico Jovin , Alexander Winar Joko
Published: August 2024

The progress of time and rapid technological advancements have driven higher education institutions and other educational organizations to adopt Enterprise Architecture (EA) as a strategic approach to planning and managing their information systems. EA planning begins with an in-depth analysis of the academic literature study environment, including a deep understanding of the needs and challenges faced. Subsequently, business requirement mapping is conducted to identify the strategic goals and objectives that the information system must achieve. Structured approaches like TOGAF (The Open Group Architecture Framework) are often used as a guide in EA planning to ensure consistency and sustainability of the information system. Additionally, it is important to note that EA planning does not solely focus on technical aspects but also involves organizational, human, and process aspects. This includes mapping roles and responsibilities in information system management, developing the skills and capabilities of human resources, and designing effective business processes. By adopting Enterprise Architecture planning for academic literature studies, educational institutions can optimize the use of information technology to enhance efficiency, productivity, and quality in the learning and research processes. EA also enables better integration between existing information systems and future systems, allowing institutions to be better prepared for future challenges.
PENGARUH PENGELOLAAN SUMBER DAYA MANUSIA TERHADAP KEMAJUAN OPTIK
Authors: Hadi Wahyu Pramono , Acinnadhamma Nataputtaka Vijjadhara , Umami Nisa Zakiati , Doringin Ferry
Published: August 2024

Optik sebagai penyelenggara jasa pelayanan kesehatan harus memenuhi standar kompetensinya. Kinerja pegawai yang rendah akan berdampak pada kemajuan usaha optik. Untuk itu diperlukan pelatihan sebagai salah satu cara pengembangan sumber daya manusia. Untuk mengetahui pengaruh pelatihan terhadap kinerja pegawai optik Metode yang digunakan adalah medtode kualitatif dan study literatur yang diambil dari beberapa jurnal nasional, e-book, dan artikel ahli yang diakses online. Studi literatur ini menyajikan materi yang telah diterbitkan sebelumnya dan menganalisis suatu fakta baru. Sumber pustaka yang digunakan dalam penyusunan melibatkan 10 pustaka. Pemilihan artikel sumber pustaka dilakukan dengan melakukan peninjauan pada judul, abstrak, dan hasil yang membahas Pengelolaah Sumber Daya Manusia yang Baik Terhadap Kemajuan Optik Dalam kaitannya dengan spesifikasi atau kriteria RO atau Optometris yang mampu melaksanakan kegiatan pemeriksaan dan pelayanan di Optik maka kita perlu memahami lebih jauh tentang kompetensi yang harus dimiliki seorang RO atau Optometris meliputi kompetensi akdemik, ketepatan, mahir dalam menggunakan alat, dan attitude pegawai. Dari hasil penelitian dari beberapa study literatur yang telah dibaca menunjukan adanya hubungan pengaruh yang signifikan  antara pengelolaan sumber daya manusia yang baik terhadap kemajuan optik.
Taşkın Afetlerinin Önceden Tahmin Edilebilirliği; Gümüşhane İlinde Yaşanan Afetlerinin Farklı Yöntemlerle Tahmin Örneklemi
Authors: Yükseler Ufuk , Dursun Ömerul Faruk
Published: August 2024

Taşkın afeti ülkemizde sıklıkla yaşanan, can ve mal kaybı bilançosu yüksek olan bir afettir. Karadeniz bölgesi ülkemizde en fazla taşkına maruz kalan bölgedir. Bu nedenle bu çalışmada Karadeniz bölgesinin sınırları içerisinde kalan Gümüşhane İlinde 1972, 1974, 2004 ve 2017 yıllarında yaşanan 4 büyük afet TOPSİS, Frekans Oran ve Entropi yöntemiyle tahmin edilmeye çalışılmıştır. Çalışma kapsamında 9 adet taşkına etki eden parametre kullanılarak risk haritaları çıkarılmıştır. Kurumlarından elde edilen veriler alan oranında noktasal veri çıkarılmıştır. Çıkarılan bu noktasal veriler yöntemlerin risk haritaları ile karşılaştırılmıştır. 4 adet doğrulama metodu ile yöntemlerin doğruluk değerleri tespit edilmiştir.
Çalışma sonucunda taşkına etkili parametreler çoğunlukla yükselti ve yağış olarak belirlenirken bazı havza ve metotlarda bu durum farklılık göstermiştir. Frekans Oran ve Entropi metodu risk haritalarının gerçekle uyumlu sonuçlar verdiği, TOPSİS metodunun ise uyumunun daha düşük olduğu belirlenmiştir. Frekans Oran metodu en yüksek doğruluk değerlerine sahip olmuştur. Bunun nedeni, Frekans Oran metodunun havza öğrenimi sonucu algoritma oluşturmasıdır.
FARKLI EN/BOY ORANINA SAHİP DÖRTGENSEL KESİTLİ BİR KİRAL ÖKZETİK HÜCRESEL YAPININ TASARIM VE OPTİMİZASYONU
Authors: Yılmaz Cem , Kacar İlyas
Published: August 2024

Bu çalışmada kübik formda bir kiral kafes yapısı tasarlanmıştır. Kesit dörtgenseldir. Malzeme olarak polietilen, Ti6Al4V, AlSi10Mg, 316 paslanmaz çelik, polyamid-6, polipropilen ve reçine polyamid/Naylon-66 kullanılmıştır. Yapının bir ucu ankastre mesnet ile sabitlenmişken serbest ucu ise eksenel yer değiştirmeye maruz bırakılmıştır. Yapısal analiz için sonlu eleman esaslı simülasyon kullanılmıştır. Simülasyon sonucunda gerilme, deformasyon, Poisson oranı değerleri elde edilmiştir. Bu parametreler genetik algoritma esaslı optimizasyona tabi tutulmuştur. Optimizasyonun amacı, minimum boyuta sahip yapıda, maksimum dayanım elde edebilmektir. Zira hafif yapılar hem inşa hem de malzeme maliyetleri açısından tercih edilmektedir. Amaca uyan en iyi boyutlar tespit edilmiştir. Ayrıca parametreler arasındaki ilişkiyi gösteren bir cevap fonksiyonu elde edilmiştir. Optimum kesit 0,5x0,2 mm olup bu durumda yapı -0,9 mm'lik bir yer değiştirmeye dayanabilmiştir. Yapıda en fazla 23,636 MPa çekme ve 1,3266 MPa basma gerilmesi oluşmuştur. Bu değer malzemenin akma dayanımının altındadır. Bu hâli ile yapı kütlesi 0,298 gramdır.
Оптические переходы 1S–2Px между уровнями мелкой примеси в монослойном графене
Authors: Джотян А. П. , Аветисян А. А.
Published: August 2024

Вариационным методом исследована энергия связи основного и первого возбужденного уровней водородоподобной примеси в монослойном графене. Показано, что энергия связи примеси перестраивается изменением щели и эффективной постоянной тонкой структуры. Найдено аналитическое выражение для дипольного матричного элемента перехода электрона с основного на первое возбужденное состояние водородоподобной примеси в графене.
Վարիացիոն մեթոդով՝ միաշերտ գրաֆենում ուսումնասիրվել են ջրածնանման խառնուկի էլեկտրոնի հիմնական և առաջին գրգռված մակարդակների կապի էներգիաները: Ցույց է տրվել, որ խառնուկային վիճակների կապի էներգիան կարելի է կառավարվել ճեղքի և արդյունարար նուրբ կառուցվածքի հաստատունի մեծության փոփոխությամբ։ Ստացվել է վերլուծական արտահայտություն խառնուկային էլեկտրոնի՝ հիմնական վիճակից դեպի առաջին գրգռված վիճակ անցման դիպոլային մատրիցական տարրի համար։
The binding energy of the ground and first excited levels of a hydrogen-like impurity electron in monolayer graphene was studied by the variational method. It is shown that the binding energy of the impurity electron can be tailored by changing the value of the gap and the effective fine structure constant. An analytical expression for the dipole matrix element of the electron transition from the ground to the first excited state of a hydrogen-like impurity in graphene has been found.
Влияние двухкомпонентной добавки TiO2:ZrO2 на механические свойства стеклокристаллического материала, синтезированного на основе перлита
Authors: Григорян Л. Н. , Петросян П. Г. , Петросян С. Г.
Published: August 2024

Исследовано влияние двухкомпонентной добавки TiO2:ZrO2 на механические свойства стеклокристаллического материала, синтезированного на основе перлита. Установлена взаимосвязь между модулем Юнга, микротвёрдостью и содержанием добавки TiO2:ZrO2 в исходной шихте. Методом неизотермического дифференциального термического анализа (ДТА) исследована кинетика кристаллизации полученного материала. По результатам СЭМ-исследований установлено, что добавление примеси TiO2:ZrO2 приводит к увеличению концентрации зародышей и к уменьшению размеров образующихся кристаллитов, что в итоге является физической причиной повышения микротвёрдости синтезированной стеклокерамики.
Ուսումնասիրվել է երկբաղադրիչ TiO2:ZrO2 հավելանյութի ազդեցությունը պեռլիտի հիման վրա սինթեզված ապակեբյուրեղային նյութի մեխանիկական հատկությունների վրա։ Կապ է հաստատվել Յանգի մոդուլի, միկրոկարծրության և TiO2:ZrO2 հավելանյութի պարունակության միջև: Ստացված նյութի բյուրեղացման կինետիկան ուսումնասիրվել է ոչ իզոթերմիկ դիֆերենցիալ ջերմային անալիզի (DTA) մեթոդով։ SEM ուսումնասիրությունների արդյունքների հիման վրա ցույց է տրվել, որ TiO2:ZrO2 հավելանույթի ավելացումը հանգեցնում է սաղմերի կոնցենտրացիայի մեծացմանը և ձևավորվող բյուրեղների չափերի փոքրացմանը, ինչը բերում է ապակեկերամիկայի միկրոկարծրության մեծացման:
The effect of a two-component TiO2:ZrO2 addition on the mechanical properties of a glass-crystalline material synthesized based on pearlite has been studied. A relationship has been established between Young's modulus, microhardness and the content of the TiO:ZrO addition on in the original batch. The kinetics of crystallization of the resulting material was studied using the method of non-isothermal differential thermal analysis.
Фотокаталитические и радиационно-оптические свойства метасиликата свинца, полученного микроволновым методом
Authors: Агамалян Н. Р. , Саргсян А. А. , Азатян Т. С. , Григорян Т. В. , Казарян А. А. , Петросян А. А. , Гюласарян А. Т. , Кафадарян Е. А. , Нерсисян М. Н. , Князян Н. Б. , Баграмян В. В.
Published: August 2024

Проведен анализ свойств порошков метасиликата свинца, синтезированного микроволновым методом, и легкоплавкого (900оС) стекла, полученного на его основе. Физико-химические исследования показали, что синтезированный метасиликат свинца и стекло, полученное на его основе, являются перспективными материалами для применения в различных областях, а именно: в качестве широкозонного полупроводника, фотокатализатора, а также стекла, используемого для защиты от ионизирующего излучения.
Կատարվել է միկրոալիքային մեթոդով սինթեզված կապարի մետասիլիկատային փոշիների և դրա հիման վրա ստացված հալման ցաձր ջերմաստիճան ունեցող ապակու (900°C) հատկությունների վերլուծություն։ Ֆիզիկաքիմիական ուսումնասիրությունները ցույց են տվել, որ սինթեզված կապարի մետասիլիկատը և դրա հիման վրա ստացված ապակին հանդիսանում են խոստումնալից նյութեր տարբեր ոլորտներում օգտագործելու համար, մասնավորապես՝ որպես լայն արգելված գոտիով կիսահաղորդիչ, ֆոտոկատալիզատոր և ապակի, որն օգտագործվում է իոնացնող ճառագայթումից պաշտպանվելու համար:
An analysis of the properties of lead metasilicate powders synthesized by the microwave method and low-melting (900C) glass obtained based on it has been conducted. Physico-chemical studies have shown that the synthesized lead metasilicate and the glass obtained from it are promising materials for use in various fields, namely as a wide-bandgap semiconductor, photocatalyst, and glass used for protection against ionizing radiation.
Дифракция рентгеновских лучей на сверх решетке с перекрывающимися дефектами упаковки
Authors: Манукян А. М.
Published: August 2024

Проведено теоретическое исследование дифракции рентгеновских лучей на сверхрешетке с перекрывающимися дефектами упаковки. Получены выражения для коэффициента отражения рентгеновских лучей в направлении сателлитов, в зависимости от скачка фазы волны на дефектах упаковки и глубины их залегания. Для сравнения с идеальной сверхрешеткой получено относительное изменение коэффициента отражения.
Տեսականորեն հետազոտված է ռենտգենյան ճառագայթների դիֆրակցիան ծածկվող դարսման արատներ պարունակող գերցանցում: Արտածված է ռենտգենյան ճառագայթների անդրադարձման գործակցի բանաձևը սատելիտների ուղղությամբ` կախված դարսման արատների վրա ալիքի կրած փուլի թռիչքից և նրանց խորությունից: Կատարյալ գերցանցի հետ համեմատելու համար ստացված է անդրադարձման գործակցի հարաբերական փոփոխությունը:
A theoretical study of X-ray diffraction on a superlattice with overlapping stacking faults is carried out. Expressions for the X-ray reflection coefficient in the directions of satellites, depending on the wave’s phase jump on the stacking faults and the depth of their occurrence, are obtained. For comparison with an ideal superlattice, the relative change in the reflection coefficient is obtained.
Brain Volumetric changes in patients with Spinocerebellar Ataxia Type 2
Authors: Gen Bar , en Sedat , Aslan Kerim
Published: August 2024

Aim: Spinocerebellar ataxia type 2 (SCA2) is a trinucleotide repeat disorder characterized by mutations in the ataxin-2 gene. Although the primary symptoms of this disease are related to cerebellar involvement, such as ataxia and dysarthria, cognitive disorders associated with supratentorial involvement, depression, and extrapyramidal symptoms are also common. The aim of this study was to investigate volumetric changes in patients with SCA2.

Materials and Methods: Nine SCA2 patients and sixteen age and gender-matched healthy controls were included in the study. Voxel-based morphometry (VBM) was used to explore changes in whole brain gray and white matter, while surface-based morphometry (SBM) was employed to investigate changes in cortical thickness (CT), local gyrification index (LGI), sulcal depth (SD), and fractal dimension (FD). Deep learning methods were utilized for the automatic segmentation of subcortical gray matter structures and extrapyramidal system structures. Comparisons between groups were made using GLM, T-Test, and Mann-Whitney U test.

Results: VBM results showed widespread gray matter loss in the cerebellum and widespread white matter loss in the brain stem (Cluster size: 25918 voxels for gray matter, 24557 voxels for white matter). SBM findings indicated a decrease in cortical thickness (Cluster size:19276 vertices for left hemisphere; 17276 vertices for right hemisphere), more pronounced in the supratentorial frontoparietal region, while FD, LGI, and SD did not differ between groups. Volume loss was observed in the subthalamic nucleus, globus pallidus internus and externus, and red nucleus in SCA2 patients.

Conclusion: SCA2 patients exhibit white and gray matter volume loss in the infratentorial region. Additionally, they show a decrease in frontoparietal cortical thickness, while FD, LGI, and SD do not show any changes. Moreover, atrophy is also observed in the extrapyramidal system structures.
HbA1c Levels in Iron Deficiency Anemia Cases Grouped According to Hemoglobin Levels
Authors: Seker Rabia , Sahin Elif , Sener Aziz
Published: August 2024

Objective
Iron deficiency anemia (IDA) is a prevalent nutritional deficiency anemia affecting global populations, characterized by impaired hemoglobin synthesis and erythrocyte dysfunction. Hemoglobin A1c (HbA1c) levels, crucial for monitoring glycemic control in diabetes mellitus (DM), may be influenced by factors beyond blood glucose, including anemia. This study aims to evaluate the impact of IDA on HbA1c levels in non-diabetic individuals aged 15-60.
Materials and Methods
A retrospective cross-sectional study conducted. The study included 299 IDA patients with FBG and HbA1c levels within the reference range (70-100 mg/dL for FBG, 4%-6.0% for HbA1c) and 114 healthy controls. Exclusion criteria encompassed DM history, recent iron therapy, other anemias, chronic infections, and malnutrition. Patients were grouped by anemia severity regarding hemoglobin levels: mild (11-11.9 g/dL), moderate (10.1-10.9 g/dL), and severe (<10 g/dL). Statistical analysis involved ANOVA, Tukey test, chi-square test, and Pearson correlation, with significance set at p<0.05.
Results
Mean HbA1c levels were 5.42±0.34%, 5.48±0.27%, 5.42±0.33%, and 5.28±0.27% in mild, moderate, severe IDA, and control groups, respectively, showing no significant difference among IDA groups but significantly lower in controls (p<0.001). A low negative correlation existed between HbA1c and hemoglobin, iron, and ferritin levels (p<0.01 for Hb and Fe, p<0.05 for ferritin). Age correlated moderately positively with HbA1c (p<0.01).
Conclusion
The mechanism of the relationship between iron deficiency anemia and HbA1c levels has not been fully explained. This study highlights the significant influence of IDA on HbA1c levels in non-diabetic individuals aged 15-60, emphasizing the need for larger, prospective studies to clarify this relationship and enhance the interpretation of HbA1c.
A study on pharmacies within the concept of ethical dilemma and analysis of ethical dilemmas encountered in pharmacies
Authors: Avci Onur , Karatas Mehmet
Published: August 2024

In this study, it is aimed to make a detailed analysis of ethical dilemmas encountered in pharmacies. Our study is a descriptive study. Its universe consists of all 226 pharmacies located in the center of Malatya. The questionnaire, consisting of 14 questions, we prepared originally, was conducted for pharmacists who volunteered to participate face-to-face and online for two months in 2022. The analysis of the survey data was made with the 'SPSS' program and the level of significance was taken as p<0.05 for comparison tests. When the answers were examined, it was stated that almost all participants knew the definition of ethics, but when it came to ethical dilemma, 30.30% (n: 50) of undergraduate graduates and 15% (n: 3) of master's graduates stated that they did not know the concept of ethical dilemma. Considering the answers of the pharmacists participating in the survey, although there are not big differences from time to time, as the level of education increases, the increase in sensitivity to ethical issues and the level of discipline in professional practices is remarkable.
COVID-19 AND COMORBIDITIES
Authors: Loncar Danijela , Jahic Rahima , Porobic-Jahic Humera , Bijedic Amira , Bijedic Irma , Kovacevic Katarina , Omercehajic Asja , Mustafic Sehveta , Ibralic Alma , Gegic Merima , Mrsic Denis
Published: August 2024

Background: The coronavirus disease (Covid 19) is caused by the SARS-CoV-2 virus. The virus has spread globally, causing millions of deaths.Aim: This study was made with the aim of revealing the clinical features of corona virus infection, as well as assessing the prevalence of comorbidities in patients infected with coronavirus 2 (SARS-CoV-2).Methods: In this analysis the data was obtained from the hospital information system, involving patients who were treated for Covid-19, in the period January 1 until April 8, 2021.Results: 400 infected patients were included in the study, 86.2% of whom had comorbidities, and 8.8% without comorbidities. The results showed that the most common clinical symptom is fever in 62%, followed by difficulty breathing in 53%, and cough in 42%. The most prevalent comorbidities were cardiac 68.3%, then endocrinological 33.8%, surgical 16.5%, neurological 15%, oncological 12%, nephrological 11%, and pulmonary 10%. The existence of a significant association between the presence of comorbidities and the patients suffering from COVID-19 on mechanical ventilation due to treatment complications was determined, p=0.000 (p<0.05) at the 95% significance level.Conclusion: We assessed the prevalence of comorbidities in patients with COVID-19 and found that underlying disease, including cardiac and endocrinological diseases, may be a risk factor for severe forms of the disease.Key words: Covid-19, clinical features, comorbidities
Sputtered ZnO Rods/Film Structure on Different Substrates
Authors: Van Tri Le  , Phan Tan Sang Ho  , Bao Quan Tran  , Hoang Trung Huynh  , Hai Dang Ngo  , Thi Kim Hang Pham
Published: August 2024

The wide investigation of zinc oxide (ZnO) nanorods is primarily driven by their exceptional utility in several industries, such as solar cells, sensors, photodetectors, photocatalysts, microchip technology, and piezoelectric transducers. There has been a growing focus in environmental defense applications on the use of ZnO nanorods as photocatalysts. This investigation discusses the growth of ZnO rods on ZnO films using the radio-frequency magnetron sputtering method at a temperature of 400 °C. The growth was performed on several substrates including Si (100), Si (111), and SiO2 substrates. A careful examination was conducted to examine the influence of the substrate on the structure and surface morphology of ZnO rods/film. Based on the X-ray diffraction patterns, it was seen that both the films and rods exhibited a high degree of crystallinity and exhibited a wurtzite structure. Furthermore, there was a preferred orientation along the (002) direction, which was perpendicular to the substrate. Scanning electron microscopy images demonstrated the significant effect of substrates on both the thickness of ZnO films and the length of rods. The findings indicated that these structures were well-suited for several applications, including thermionic/field emission, solar cells, UV detectors, and gas sensors.