bluuebunny/crossref_metadata_2025 huggingface dataset:
Enhancing cargo capacity along the Northern Sea Route through harbor infrastructure development
Authors:   Luzin Institute for Economic Studies of the Kola Science Centre of the Russian Academy of Sciences, Nikolaeva Anna B.
Published: September 2023

In the coming decades, the Northern Sea Route (NSR) can transform sea cargo logistics, acting as a significant catalyst for the development of the North of Russia. However, the NSR’s continued viability hinges upon the presence of modern harbor infrastructure. To accommodate vessels of various classes, it is imperative to modernize harbors by constructing new or refurbishing old berthing facilities to align them with contemporary standards. The article analyzes the process of developing harbor infrastructure along the NSR. The goal of the study is to explore the prospects for boosting cargo capacity through the implementation of harbor infrastructure projects along the NSR. The study identifies the key projects in this domain and provides forecasts for cargo capacity growth in the near future attributed to ongoing infrastructure developments. The study also delves into the ramifications of sanctions on harbor infrastructure development. It is concluded that while sanctions may alter project timelines, they do not impede the ultimate objective. However, they can disrupt cargo transportation by leading to the cancellation of contracts for gas tanker construction and the cessation of ship equipment supplies for tankers manufactured in Russia. The novelty of the study lies in its identification of harbor infrastructure projects poised to bolster cargo capacity along the NSR, elucidating their near and medium-term impact on cargo transportation. The practical significance of the study resides in its implications for the continued growth of the NSR. Given the fluid international and domestic economic landscapes, future research in this realm is critical to understanding evolving prospects.
Factores de Riesgos Asociados a Complicaciones del Catéter y Fístula Arteriovenosa en Pacientes Hemodializados. Hospital de Especialidades Dr. Teodoro Maldonado Carbo, Septiembre-Diciembre 2022
Authors: Jarrín Contreras Alba Del Rocío , Cabadiana Galarza Brayan Humberto
Published: September 2023

La enfermedad renal es una patología que afecta a la población mundial, siendo la lesión renal aguda la que impulsa la Enfermedad Renal Crónica que es causante de millones de muertes. En vista de ello, se establece como objetivo general identificar los factores de riesgos asociados a las complicaciones del catéter y fístula arteriovenosa en pacientes hemodializados. El trabajo se realiza bajo la investigación aplicada, descriptiva, correlacional, de campo, no experimental, transversal y cuantitativa, donde la muestra estuvo conformada por 100 profesionales de enfermería del Hospital de Especialidades Dr. Teodoro Maldonado Carbo. Los resultados indicaron que el 21.0% saben los dos tipos de factores de riesgo relacionados a complicaciones de los accesos vasculares, los enfermeros usan la fístula arteriovenosa para hemodializar al paciente 89.0%. El 29.0% tiene un conocimiento regular de las señales de alarma de complicaciones, el 57% reconoce las alteraciones de la integridad cutánea como parte de las señales de alarmas de las complicaciones de catéter y en la fístula arteriovenosa la ausencia de soplo en un 50.0%. Las complicaciones más frecuentes en la colocación de catéter fue el sangrado por el sitio de salida del catéter 75.0% y los hematomas 67.0%, mientras que, los patógenos recurrentes que provocan infecciones fueron Staphylococcus áureas 65.0% y Estafilococos epidermidis 58.0%. Se concluye que los factores de riesgo relacionados a las complicaciones se dividen en: factores modificables siendo la edad avanzada y no modificables la mala técnica de punción de la fístula arteriovenosa.
Desarrollo Integral de un Modelo de Negocio para la Comercialización de un Champú en Línea en la zona Sureste de Tamaulipas
Authors: Hiroshi Antonio Mawatari Buenrostro , José Fernando Rivas Guevara
Published: September 2023

Desarrollo de un modelo de negocio para la comercialización de champú en la zona noreste de Tamaulipas, además de un estudio profundizado de la factibilidad financiera y las estrategias de comercialización y mercadotecnia llevadas a cabo, la estrategia fue llevada a cabo en línea con ayuda del modelo de negocio “Bussiness Model Canvas” para adaptarse al mercado actual post pandemia.
Consumo del Café en Asunción desde la Perspectiva del Cliente, 2023
Authors: Blanch González David Alexander , Larrea Vega Jazmín Aracelly , Vargas Salinas Yhonny Roberto , Kwan Chung Chap Kau
Published: September 2023

El presente trabajo tiene como objetivo general determinar el consumo del café en Asunción desde la perspectiva del consumidor, 2023. Se basó en un enfoque cuantitativo de diseño no experimental con corte transversal y descriptivo. La muestra de los 151 participantes se calculó bajo un nivel de confianza del 92,7%,  margen de error del 7,3% y grado de heterogeneidad del 50%. Los criterios de inclusión que fueron considerados: residentes de Asunción y con participación voluntaria. Los criterios de exclusión tomados en cuenta: personas con residencias en otras ciudades y sin hábitos del consumo del café. Se utilizó la encuesta para la recolección de datos mediante un cuestionario compuesto por 15 preguntas, enviada vía WhatsApp por conveniencia en los meses de mayo a junio de 2023. Los resultados más relevantes fueron: 98,7% afirma de manera positiva el consumo del café, 41,0% lo realiza frecuentemente, 62,9% confirma que su marca favorita es el Netscafé, 64,2% prefiere el café con leche, 76,2% de tamaño mediano, 54,3% con agregado de chocolate y 61,6% valoran el factor calidad en el producto. Se concluye que existe un alto porcentaje de consumidores del café entre los encuestados y la mitad de éstos lo hacen de forma frecuente. Además, el factor calidad en el producto es considerado como el más importante dentro de todas las demás variables (ambiente, atención al cliente y precio) analizadas.
Compilación de Investigaciones en Ciencias de la Educación “Enseñanza y Aprendizaje” Vol. 1 Núm.1
Authors: Ortega Rolando
Published: September 2023

Compilación de Investigaciones en Ciencias de la Educación “Enseñanza y Aprendizaje” Vol. 1 Núm.1
Compilación de Investigaciones en Ciencias de Gestión y Negocios: Tecnología y Transformación Digital Vol. 1 Núm. 1
Authors: Ortega Rolando
Published: September 2023

Compilación de Investigaciones en Ciencias de Gestión y Negocios: Tecnología y Transformación Digital Vol. 1 Núm. 1
POTENSI GEL EKSTRAK DAUN PEPAYA (Carica papaya L.) SEBAGAI PENYEMBUH LUKA SAYAT PADA KELINCI
Authors: Januarti Ika Buana , Komalasari  , Sholeh Aries Badrus
Published: September 2023

Luka adalah terputusnya kontinuitas jaringan akibat substansi jaringan yang rusak atau hilang sehingga dapat menyebabkan kerusakan fungsi perlindungan kulit dan dapat disertai dengan kerusakan jaringan lain. Ekstrak daun pepaya merupakan salah satu alternatif untuk dapat mempercepat pembentukan epitel luka. Hal ini dikarenakan pada daun pepaya terdapat saponin yang merupakan senyawa yang dapat memacu pembentukan suatu kolagen dalam proses penyembuhan luka.  Penelitian ini bertujuan Menentukan konsentrasi ekstrak daun pepaya dalam sediaan gel yang efektif terhadap penyembuhan luka sayat pada kelinci. Penelitian ini dianalisis dengan statistik non parametrik menggunakan Wilcoxon,  Kruskall Wallis dilanjutkan dengan uji lanjut Mann Whitney.  Metode yang digunakan dalam penelitian ini adalah prepost design. Penelitian ini terdiri dari 5 perlakuan, yaitu 1 kontrol positif (Bioplacenton®), 1 kontrol negatif (tanpa pengobatan), basis gel dan 3 konsentrasi bertingkat yaitu gel ekstrak konsentrasi 5%, gel ekstrak konsentrasi 10% dan gel ekstrak konsentrasi 15% dengan masing-masing 5 kali pengulangan. Perlakuan dilakukan sebanyak dua kali dalam sehari selama 13 hari. Hasil Pengukuran Panjang Luka pada kelinci berdasarkan hasil penelitian menunjukkan bahwa gel ekstrak daun papaya memiliki potensi sebagai penyembuh luka sayat pada kelinci dengan nilai P-Value <0,05 yaitu 0,000. Formula gel ekstrak daun pepaya dengan konsentrasi 10% memiliki efek penyembuhan luka yang setara dengan kontrol positif (Bioplacenton®) dan lebih efektif dibandingkan dengan gel ekstrak konsentrasi 5%, gel ekstrak konsentrasi 15% dan basis gel.
Kata Kunci: Gel, Ekstrak Daun Pepaya, Penyembuh Luka.
REVIEW: TERAPI STUNTING DENGAN MADU JINTEN HITAM TEMULAWAK
Authors: Sulaeman Agus , Sabarudin Cecep
Published: September 2023

Stunting merupakan kondisi dimana kurangnya tinggi badan seseorang dibandingkan dengan tinggi normal berdasarkan usianya. Salah satu dampak dalam jangka panjang adalah kekebalan tubuh menurun sehingga mudah sakit dan risiko tinggi terjadi penyakit. Oleh karena itu, secara teori balita stunting akan rentan terkena penyakit, terutama penyakit infeksi. Madu jinten hitam dan temulawak, diketahui mekanisme kerjanya terutama ke arah sistem imun yang dapat memperbaiki penyakit stunting. Madu secara oral menstimulasi produksi antibodi. Jintan hitam meningkatkan kadar IgM dan temulawak menimbulkan efek imunosupresor dengan menurunkan proliferasi limfosit. Ulasan ini merangkum madu jinten hitam temulawak sebagai terapi stunting dengan penelusuran jurnal ilmiah terpublikasi taraf international dan nasional pada 10 tahun terakhir dari itahun 2012-2022 melalui database elektronik berupa Pubmed, ScienceDirect dan Google Scholar.
Kata kunci: stunting, imunitas, IgM, madu jinten hitam temulawak
IN SILICO STUDY: SECONDARY METABOLITES FROM RED GINGER RHIZOME (Zingiber Officinale Var. Rubrum) AS POTENTIAL INHIBITORS OF3CLpro AND PLpro OF SARS-CoV-2
Authors: Suherman Meilia , Maulidya Selvira Anandia Intan
Published: September 2023

The COVID-19 outbreak prompted the development of novel drugs to treat the disease. Targeting of virus proteins has attracted great interest in the discovery of COVID-19 drugs. 3CLpro and PLpro are promising targets because of their important role in viral replication. Hence, various efforts have been made to find specific therapeutics for COVID-19, including those derived from plants as anti-Covid-19. Red ginger rhizome (Zingiber officinale var. rubrum) contains secondary metabolites that are known for their health benefits. This in silico study aimed to determine the potency of red ginger rhizome as PLpro and 3CLpro of SARS-CoV-2 inhibitor which may be applied to treat COVID-19. This research was conducted using molecular docking and molecular dynamics simulations. The molecular docking simulation of red ginger compounds in complex with SARS-CoV-2 PLpro showed that 27 compounds have a binding free energy (?G) lower than that of the reference ligand. On the other hand, none of the complexes between red ginger compounds and 3CLpro had a lower binding free energy than the reference ligand. Visualization of interaction features at the PLpro of SARS-CoV-2’s active site shows that secondary metabolites dominantly interact with hydrogen bonds. The ar-curcumene and PLpro complex of SARS-CoV-2 appears very stable and has the lowest flexibility compared to HBA as a native ligand and molnupiravir as a reference ligand based on RMSD and RMSF plot analysis using molecular dynamic simulation...
Unsuspected paraganglioma of the urinary bladder with intraoperative hypertensive peak: A case report
Authors:   Department of Nuclear Medicine, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia, Ben Nasr Maali , Cherni Nizar ,   Department of Urology, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia, Chaachouaa Abdallah ,   Department of Urology, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia, El Ajmi Wassim ,   Department of Nuclear Medicine, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia, Zouaoui Arij ,   Department of Urology, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia, Wael Ferjaoui ,   Department of Surgery, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia, Ghozzi Samir ,   Department of Urology, Military Hospital of First Instruction of Tunis, University Tunis El Manar, Tunisia
Published: September 2023

Background. Bladder paraganglioma (BPG) is a very rare tumor. Case report: We report the case of a 48-year-old woman with a history of isolated hematuria. Cystoscopy showed a solid mass on the bottom of the bladder. During the intervention the patient experienced a severe hypertensive episode. BPG was then suspected. Pathology findings confirmed the diagnosis.123I-metaiodobenzylguanidine scan showed a pathological tracer accumulation in the left bladder wall consistent with BPG. The patient underwent a transurethral resection of the bladder after drug preparation. The postoperative course was uneventful and our patient was normotensive. Conclusion. Diagnosis of BPG is often made on histological examination of the tumor.
Classic Hodgkin lymphoma-nodular sclerosis – case report
Authors:   Department of Hematology, Coltea Clinical Hospital, Bucharest, Romania, Lebedenco Mihaela ,   Ambulatory of Hematology, “Sf  Ioan”  Emergency Clinical Hospital, Bucharest, Romania, Berbec Nicoleta ,   Department of Hematology, Coltea Clinical Hospital, Bucharest, Romania, Stanca Oana ,   Department of Hematology, Coltea Clinical Hospital, Bucharest, Romania, Lupu Anca Roxana ,   Department of Hematology, Coltea Clinical Hospital, Bucharest, Romania
Published: September 2023

Hodgkin's lymphoma is the third most common cancer in young people between 15 and 34 years of age, with a lower incidence in other age groups and slightly higher in males. The etiology of Hodgkin's lymphoma is still unknown - although various factors influencing the oncogenesis of the disease have been noted, the mechanism of their influence is poorly understood. This article will present the case of a 41-year-old patient with classic Hodgkin's lymphoma - nodular sclerosis histological subtype - chemorefractory.
Sexual dimorphism in postcloacal scales in the northern caiman lizard (Dracaena guianensis)
Authors: Antonini Riccardo , Kainradl Rupert , Gumpenberger Michaela , Weissenbacher Anton , Preininger Doris
Published: September 2023

Morphological differences between males and females are common among reptiles. A particularly interesting sexually dimorphic feature whose function is largely unknown is the number and pattern of specific scales. Several lizard species possess an arrangement of centered scales near the cloacal region that differ between the sexes and can be used for sex determination. The presence of postcloacal buttons, sexually dimorphic postcloacal scales on both sides of the body, is an exclusive trait in the subfamily Tupinambinae and is only poorly documented. Here, we investigate postcloacal scales in northern caiman lizards (Dracaena guianensis) housed at the Vienna Zoo. For a period of two years, we documented scale patterns and performed morphometric measurements of individuals of different age classes. Caiman lizards were CT scanned to confirm the sexes. Males exhibit three raised postcloacal scales in a row behind the left and right leg, while females possess one or two large scales surrounded by several smaller scales. The study provides the first evidence that these scales can function as a reliable trait to distinguish the sexes regardless of age or reproductive status. The sexually dimorphic bilateral scale pattern is present immediately after hatching and does not change during development. Scales only increase in thickness and length during growth. We further demonstrate that sexual size dimorphism (SSD) exists in juveniles during ontogenetic development. Juvenile females had a larger SVL, body length, tail length and higher weight compared to juvenile males. This SSD could not be confirmed in adults, and sex determination based on SSD seems unreliable.
Engaging Older Adults and Families Using the IDEAL Discharge Protocol: A Quality Improvement Initiative to Improve Outcomes and Reduce Readmissions
Authors: Williams Ava , Kesten Karen Swisher
Published: September 2023

Older adults have challenges understanding newly prescribed medications after discharge and must be more adherent with medications and follow up with their primary care provider. A collaborative discharge process is critical to improving patient outcomes and reducing avoidable readmission rates. This quality improvement (QI) initiative engaged 44 patients and families in the IDEAL Discharge Protocol—an evidence-based collaborative care process focused on discussion, education, and post-discharge follow up. Post-discharge follow up resulted in the completion of 52.2% of follow-up calls and 45.5% of follow-up appointments scheduled, and a 4% reduction in readmission rates. Medication adherence was assessed and found to be 93.3%, and 100% of participants received education while engaged in the study. The IDEAL Discharge Protocol aided in improving the discharge process to better equip patients with the tools to transition home successfully after discharge. [
Journal of Gerontological Nursing, 49
(10), 13–19.]
An Overview of Multi-Cultural Diversity and Implications of Religious Violence in Nigeria
Authors: Yahaya Jibrin Ubale
Published: September 2023

Religious practice is so endemic in Nigeria to the extent that scholars have clad Nigerians as the most religious people in the world; but some individuals, based on selfish sentiment, use the instrument of religion to either dominate or divide fellowship of mainly two powerful religions of Islam and Christianity at their own detriment and benefits. The study is an attempt to examine the perennial incidents of religious crises in Nigeria, which is ever on the increase, claiming hundreds of lives, destroying properties worth millions of naira. In fact, its attendant effects on peaceful co-existence, political stability, and socio-economic development are beyond comprehension. The work recommended among other things that conscious efforts should be made by the adherents of Islam and Christianity in Nigeria to build bridges of religious understanding and religious respect. And to emulate the adherents of the teaching of every divine religion on peaceful living and respect for humanity and one another.
Echoing Gender Diversity in Efik Pantheon to Stem Gender Imbalance in Nigeria
Authors: Eno Felicia
Published: September 2023

Gender issues are top of the agenda for international conventions and policy frameworks for governments and action plans for many community-based organizations. However, despite the efforts, as reported by multiple studies, Nigeria has recorded infinitesimal success in the gender struggle. While the issue of gender finds exalted position on policy frameworks, implementation of gender policies especially at the grassroots and the national level is close to non-existent as gender imbalance holds sway in subcultures in Nigeria. To this end, the study is a theologico-cultural exploration of the Efik pantheon with the objective of identifying elements of gender diversity and harmony that can be incorporated in the reconstruction of gender relation in Nigerian subcultures where absolute patriarchy is undermining diversity. With dependence on descriptive method and primary data, Efik myths and archival sources, the study sums that the Efik pantheon is beautified by gender diversity and harmony and that this harmony translates to a better gender relation in Efikland and can be replicated in Nigeria.
Generational Identity From and Through the Media and Entertainment Landscape
Authors: Nicolaou Constantinos
Published: September 2023

The modern information society in which we live is highly technologically visualized and requires, in addition to the continued use of media technologies, one to be receptive and to maintain a positive perspective on any emerging innovation. This chapter outlines the technological and digital environment in relation to the latest three adult generational cohorts (i.e., 18 years old and older); Generation X, Generation Y, and Generation Z—XYZ Generations. Finally, the ultimate purpose of this chapter is to delineate the current identity and diversities of XYZ Generations from the growing convergence of media for a more meaningful, peaceful, and just society.
Hispanic Males in Rural America
Authors: Conyers Kimberly
Published: September 2023

Families and educators play critical roles in determining ways to successfully guide Hispanic males to graduate high school, reach their full potential, and ultimately pursue a college education. However, lower graduation rates, poorer grades, and smaller enrollment numbers in post-secondary programs demonstrate reason for concern particularly for this minoritized group. Despite positive relationships in young Hispanic males' lives, most still do not pursue a college education, leading to fewer Hispanic males in professional roles, running a business, as teachers, and in the medical field. This chapter focuses on specific challenges faced by this minoritized group in rural communities and how those challenges coincide specifically to the issues presented in the field of education. As the population of Hispanic members grows in the United States, so should the representation of this group in colleges, businesses, and the professional workforce.
Corporate Governance and Gender Diversity in Boardrooms
Authors: Ekundayo Veronica Ngozi , Onefeli Lynda
Published: September 2023

Despite the significant interest in gender diversity in the boardroom from academics, government officials, and corporate strategists, and that women are qualified to positively influence a company's strategic direction and contribute to its growth, they are underrepresented in senior management and board positions. This chapter explored the relationship between corporate governance and gender diversity. It discussed board diversity in general and gender diversity on corporate boards in several countries, highlighting the benefits of gender diversity on corporate boards. It concludes that several measures can help increase the number of women on corporate boards, including mandatory quotas, political will and support, commitments by companies, codes of corporate governance, and government incentives such as tax breaks and recognition for companies promoting gender diversity, noting that a gender-diversified corporate boardroom is a balanced board essential for good and ethical business sense.
Transition to College for Every Student – No Exceptions!
Authors: Roberts Laura A.
Published: September 2023

An enthusiastic principal has high expectations for his high school students and believes every student's future must include postsecondary education. This case study focuses on a school principal who is determined to maintain his school's high-performance status by promoting a college-bound culture. However, he may have overlooked the needs of a subset of students with significant disabilities in the school. The implications of his oversight, and the actions needed to ensure equitable educational programming are examined.
Who Is in Charge Here?
Authors: Fayne Harriet
Published: September 2023

A middle school principal in a low-performing urban middle school recognizes that he must reassess the roles and impact of paraprofessionals within the building. After observing several special education and general education classrooms, he concludes that his teachers are well equipped to manage students but appear to be uncomfortable managing the paraprofessional staff. The principal recognizes the potential for this situation to escalate if left unaddressed and has determined that the time for intervention is now. He would like to devise a plan that aligns with federal, state, and local regulations that also considers the professional development needs of the special education instructional staff in his building. But will this be enough?
The Experience of Emergency Remote Teaching in the Interior Design Studio
Authors: Kandemir Ozge , Ertugrul Ummu
Published: September 2023

To the changing social structure in parallel with technological developments, it is essential to reveal the principal values of design education. Hence, this questioning has become necessary for the pandemic causing the interruption of face-to-face education worldwide. The approach towards design education develops with the understanding of the structure of design act. Today, this structure contains data on the need to develop critical thinking skills to provide design education with contemporary approaches. Hence, the study examined design education's purpose and the design studio's role in realizing it through the concept of crit. The environments in which crit emerges, one of the central pedagogical tools of design studio education, have been evaluated as crit environments with overlapping or diverging but fundamentally complementary features through literature review. This review has been used to examine the interior design studio course, which has moved to the online environment during the pandemic and had to use emergency remote teaching model through a case study.
Using an Eclectic Approach to Design Curriculum Instruction in an Online Environment
Authors: Chakabwata William
Published: September 2023

In this chapter, an eclectic approach to designing curriculum instruction is undertaken. The chapter acknowledges that there is no Archimedean principle in online instructional curriculum design. A survey of instructional design based on behaviorism and Tyler rationale is offered. This is followed by an analysis of various instructional design frameworks that were imbued by the objectives models, such as Benjamin Bloom Taxonomy of learning objectives, Robert Mager principles of instructional design, Biggs model of constructive alignment, Robert Gagne theory of learning prior to instruction, analysis, design, development implementation and evaluation (ADDIE) model of instructional design among many others. The chapter avers that it is important for educators to become acquainted with various theoretical models and framework of instructional design in order for them to practice reflective eclecticism when designing instructions in an online environment.
The City as Anthology
Authors: Bell Jameson Bradley Kısmet
Published: September 2023

This chapter presents a case study based on two recent courses on media, material, and short literature taught at Bogazici University, in Istanbul, Turkey between 2018-2022. By introducing students to short literary genres such as aphorisms, maxims, epigrams, riddles, and dozens of other examples, students could turn their neighborhoods into anthologies by digitally mapping short literary forms in public locations. Rather than require students to buy readers, anthologies, or collections compiled by for-profit international publishers, students created, annotated, and edited their own collection of a particular short genre. The final evaluation emphasizes the importance of encouraging literary students to experiment with the categorization of literary objects rather than accept “literature” that has been judged, edited, collected, canonized by international publishing houses.
An Online Course of Dynamics and Kinematics Physics Education Using eXtended Reality (XR) Technologies.
Authors: Barrón-Estrada María Lucía , Cardenas-Sainz Brandon Antonio , Zatarain-Cabada Ramón
Published: September 2023

This chapter discusses the use of extended reality (XR) for the design and development of online learning applications using real-time physics simulations. The authors propose an instructional design based on the ARCS motivational model to improve aspects of the presentation, organization, and distribution of learning content for an online XR learning application, which presents an interactive and exploratory learning environment for physics education, through a real-time physics simulator of dynamics and kinematics. Depending on the characteristics of a XR-compliant device and platform, the authors can offer XR experiences that range from augmented reality (AR) to non-immersive and immersive virtual reality (VR) environments in a single application, being available to any device with internet capabilities. To evaluate the instructional design of the XR application, the authors present an assessment using the John Keller´s attention, relevance, confidence and satisfaction (ARCS) learning motivation model, which allows to analyze the correlation between student's motivation and the learning technique.
Computer-Aided Instruction in a Science Lesson Slowmation Development Study
Authors: Alkan Fatma , Kurtoğlu Hasan
Published: September 2023

Rapid advances in science and technology have revolutionized science courses and significantly increased the use of computer software. One of the most frequently used computer software in the science course is animations. Slowmations, which are one of the animation types, are a very powerful teaching material especially in science subjects where certain stages follow each other, to eliminate misconceptions and to better comprehend abstract subjects by students. The aim of this study; primary school 5th grade science lesson is to develop a slow-motion animation as a guide material for the subjects of “Moon's Properties, Movements and Phases”. Slowmation consisting of 14 scenes voiced in the language was prepared. With the inclusion of the prepared material, the misconceptions of the students will decrease, in the 21st century. It is thought that their skills will improve and their interest and motivation towards science and technology will increase. It is also foreseen that the lessons taught with this guide material will be more effective and enjoyable.
Interventions to Improve Education Indicators Based on the Dynamic System Scenario Model
Authors: Nadarsyah Nana Noviana , Setyati Sri Setyati
Published: September 2023

Equal education is one option that requires more attention in efforts to improve RLS. Equality is a policy for workers who do not have a certain education certificate. The most effective efforts to improve RLS are interventions at the tertiary level as well as equalization education. This research is a mix-method study with two respondents, stakeholder respondents or policymakers and expert respondents. The methods used are descriptive analysis, linear and non-linear quadratic trend analysis, system dynamics analysis, and interpretative structural modeling analysis. Considering that access to education is very far away and the low economic capacity of the community, it can be considered to carry out learning for this equivalence education online. Therefore, a strategy is needed for interventions to increase education by increasing public awareness, increasing and optimizing scholarship programs, optimizing education funding, increasing coordination between institutions, optimizing educational institutions, and evaluating the adequacy and feasibility of equalizing institutions.
Strategies for Successful Implementation and Delivery of Practicum Through Online Courses in HEIs
Authors: Sharma Anshul , Thakur Khushal , Singh Kiran Jot , Kapoor Divneet Singh
Published: September 2023

Practical courses in higher education bridge the gap between theory and real-world application, enhancing critical thinking, problem-solving skills, and professional competencies. They foster student engagement, motivation, and employability by providing hands-on experiences and collaborative learning environments. This chapter focuses on implementing and delivering practical courses online, considering instructional methods, technology tools, and interactive activities. It explores the unique challenges and opportunities of online practical learning, addressing course objectives, accessibility, and flexibility. The chapter delves into leveraging technology for virtual resources, simulations, and teamwork. Strategies for learner engagement, assessments, personalized support, and peer interaction are provided. Quality assurance, addressing technical challenges, monitoring effectiveness, and continuous improvement are discussed. The chapter includes case studies and best practices to guide successful implementations of practical online courses in higher education.
A constante de Kaprekar–6174
Authors:   FEITEP - Faculdade de Engenharia e Inovação Técnico Profissional, Andrade Doherty
Published: September 2023

Dado um número N com 4 dígitos (base 10), escrevendo os digitos de N em forma ascendente obtemos um número N1 e escrevendo os dígitos de N de forma descendente obtemos um número N2. Subtraindo o maior número do menor obtemos um número N3. Se N3 = 6174 já atingimos a constante de Kaprekar. Se não, repete-se o processo com o número N3. Após um número finito de passos (no máximo 8 passos) atinge-se constante de Kaprekar K = 6174. Observe que deve-se considerar o dígito zero quando este aparecer no processo.
Video Based Estimation of Surface Currents in a Tidal Inlet
Authors: Middour Benjamin , Voulgaris George , Cahl Douglas
Published: September 2023

Abstract Oceanic surface currents are estimated from analysis of short duration video obtained by a nadir facing camera installed on a bridge over a tidal inlet. Data analyzed consisted of 13 two-minute video clips captured approximately every 40 min over a period of 8 hr,
covering a significant portion of the tidal cycle. Surface current speed and direction estimates are obtained from each collected video using (i) a method originally developed for analysis of imagery from drones (CopterCurrents) and (ii) a particle tracking method. The horizontal (u, v) surface
current velocity components and total horizontal velocity magnitude, obtained from the two methods, were in very good agreement with each other (R 2 = .96 and Root Mean Square (RMS) differences of 0.12 m/s or less). Our analysis suggests that video cameras from stationary
structures can provide surface flow measurements over inland waters and navigational channels where deployment of in-situ sensors is not feasible.
The Mir-1 and Mir-2 Submersibles in Feature Films
Authors: Sagalevich Anatoly M.
Published: September 2023

Abstract This article considers the methods of capturing deep ocean images with deep manned submersibles Mir-1 and Mir-2 (6,000-m depth) for feature films. The filming of Titanic by IMAX (Stephen Low) and Lightstorm Entertainment (James Cameron) companies
with the use of deep ocean technique was pioneering work. The problems, which were solved during filming, as well as the development of special equipment are discussed.
On the metric dimension of circulant graphs
Authors: Gao Rui , Xiao Yingqing , Zhang Zhanqi
Published: September 2023

In this note, we bound the metric dimension of the circulant graphs
$C_n(1,2,\ldots ,t)$
. We shall prove that if
$n=2tk+t$
and if t is odd, then
$\dim (C_n(1,2,\ldots ,t))=t+1$
, which confirms Conjecture 4.1.1 in Chau and Gosselin (2017, Opuscula Mathematica 37, 509–534). In Vetrík (2017, Canadian Mathematical Bulletin 60, 206–216; 2020, Discussiones Mathematicae. Graph Theory 40, 67–76), the author has shown that
$\dim (C_n(1,2,\ldots ,t))\leq t+\left \lceil \frac {p}{2}\right \rceil $
for
$n=2tk+t+p$
, where
$t\geq 4$
is even,
$1\leq p\leq t+1$
, and
$k\geq 1$
. Inspired by his work, we show that
$\dim (C_n(1,2,\ldots ,t))\leq t+\left \lfloor \frac {p}{2}\right \rfloor $
for
$n=2tk+t+p$
, where
$t\geq 5$
is odd,
$2\leq p\leq t+1$
, and
$k\geq 2$
.
On the positivity of direct image bundles
Authors: Li Zhi , Zhou Xiangyu
Published: September 2023

In the present paper, we obtain an equivalent relation between the log-plurisubharmonicity of the relative Bergman kernel, the Griffiths and Nakano positivity for the direct image with the natural $L^2$ metric, by finding a converse of Berndtsson's theorem on the direct image. A converse of Berndtsson's generalization of Kiselman minimal principle is also obtained.
Bibliography: 30 titles.
On optimization of coherent and incoherent controls for two-level quantum systems
Authors: Morzhin Oleg Vasilevich , Pechen Alexander Nikolaevich
Published: September 2023

This article considers some control problems for closed and open two-level quantum systems. The closed system's dynamics is governed by the Schrödinger equation with coherent control. The open system's dynamics is governed by the Gorini-Kossakowski-Sudarshan-Lindblad master equation whose Hamiltonian depends on coherent control and superoperator of dissipation depends on incoherent control. For the closed system, we consider the problem for generation of the phase shift gate for some values of phases and final times for which we numerically show that zero coherent control, which is a stationary point of the objective functional, is not optimal; it gives an example of subtle point for practical solving quantum control problems. The two-stage method, which was developed in [A. Pechen, Phys. Rev. A., 84, 042106 (2011)] for generic $N$-level open quantum systems for approximate generation of a given target density matrix, is modified here for the case of two-level systems. We modify the first ("incoherent") stage by numerically optimizing piecewise constant incoherent control instead of using constant incoherent control analytically computed using eigenvalues of the target density matrix. Exact analytical formulas are derived for the system's state evolution, the objective functions and their gradients for the modified first stage. These formulas are then applied in the two-step gradient projection method. The numerical simulations show that the modified first stage's duration can be significantly less than the unmodified first stage's duration, but at the cost of performing optimization in the class of piecewise constant controls.
Bibliography: 72 titles.
Обобщенное соотношение Крютера и V-схема: аналитические результаты в КХД и КЭД в четвертом порядке теории возмущений
Authors: Kataev Andrei L'vovich , Molokoedov Victor Sergeevich
Published: September 2023

Получено аналитическое четырехпетлевое выражение для $\beta$-функции теории с общей простой калибровочной группой в эффективной калибровочно-инвариантной V-схеме. На промежуточном этапе вычислений использовался явный вид трехпетлевого аналитического вклада к пертурбативной кулоновской части статического потенциала взаимодействия тяжелой кварк-антикварковой пары, вычисленный в $\overline{\mathrm{MS}}$-схеме. Также приведены результаты для поправок к функции Адлера процесса электрон-позитронной аннигиляции в адроны и к коэффициентной функции правила сумм Бьeркена глубоконеупругого рассеяния заряженных поляризованных лептонов на нуклонной мишени, полученные в V-схеме в КХД с точностью до членов порядка $a^4_s$ включительно. Продемонстрировано, что на этом уровне теории возмущений в данной эффективной схеме выполняется обобщенное соотношение Крютера, связывающее несинглетные по аромату вклады к функциям Адлера и к поляризованному правилу сумм Бьeркена. Начиная с порядка $a^2_s$ это соотношение содержит член, нарушающий конформную симметрию и представимый в виде произведения конформной аномалии $\beta(a_s)/a_s$ на полином по степеням $a_s$. Доказано, что данное соотношение также выполняется и в других калибровочно-инвариантных схемах перенормировок. Полученные результаты позволяют выявить разницу между $\beta$-функцией в V-схеме в КЭД и $\Psi$-функцией Гелл-Манна-Лоу. Это различие возникает из-за поправок рассеяния света на свете, впервые появляющихся в трехпетлевом выражении для статического потенциала.
О классификации нелинейных интегрируемых трехмерных цепочек при помощи характеристических алгебр Ли
Authors: Habibullin Ismagil Talgatovich , Khakimova Aigul Rinatovna
Published: September 2023

Продолжена работа по описанию интегрируемых нелинейных цепочек с тремя независимыми переменными вида $u^j_{n+1,x}=u^j_{n,x}+f(u^{j+1}_{n},u^{j}_n,u^j_{n+1 },u^{j-1}_{n+1})$ по признаку наличия иерархии редукций, интегрируемых в смысле Дарбу. В основе классификационного алгоритма лежит хорошо известный факт, что характеристические алгебры интегрируемых по Дарбу систем имеют конечную размерность. В работе использована характеристическая алгебра по направлению $x$, структура которой для данного класса моделей определяется некоторым полиномом $P(\lambda)$, степень которого для известных примеров не превосходит 3. Предполагается, что $P(\lambda)=\lambda^2$, в этом случае классификационная задача сводится к отысканию восьми неизвестных функций одной переменной. Получен достаточно узкий класс претендентов на интегрируемость.
Модифицированная задача Римана-Гильберта для нелинейного уравнения Шредингера с производной: исчезающие начальные условия
Authors: Zhang Yongshuai , Wu Haibing , Qiu Deqin
Published: September 2023

Рассматривается модифицированная задача Римана-Гильберта для нелинейного уравнения Шредингера с производной при начальном условии, стремящемся к нулю на бесконечности. Вводится интегральный множитель, такой что решение этой задачи удовлетворяет условию нормировки. В безотражательном случае найдены явные формулы для решений $N$-го порядка, включающие солитоны и позитоны, которые соответствуют $N$ парам простых полюсов и одной паре полюсов $N$-го порядка в задаче Римана-Гильберта. С помощью формулы Коши-Бине получены явные выражения для $N$-солитонных решений. Также получено явное выражение для позитона второго порядка и представлены графики динамики позитонов третьего и четвертого порядков.
Скалярные произведения векторов Бете в обобщенном алгебраическом анзаце Бете
Authors: Kulkarni Giridhar , Slavnov Nikita Andreevich
Published: September 2023

В рамках обобщенного алгебраического анзаца Бете рассматривается спиновая цепочка $XYZ$. Изучаются скалярные произведения собственных векторов трансфер-матрицы и произвольных векторов Бете. В частном случае свободных фермионов получены явные выражения для скалярных произведений с разным числом параметров в двух векторах Бете.
Exploring the biological activity of organotin carboxylate complexes with 4-sulfosalicylic acid
Authors: Hashim Dhekra Jawad , Waheed Enass J. , Hadi Angham G. , Baqir Sadiq J.
Published: September 2023

ABSTRACT. 4-Sulfosalicylic acid (SSA) was used as a ligand to prepare new triphenyltin and dimethyl-tin complexes by condensation with the corresponding organotin chloride salts. The complexes were identified by different techniques, such as infrared spectra (tin and proton), magnetic resonance, and elemental analyses. The 119Sn-NMR was studied to determine the prepared complexes' geometrical shape. Two methods examined the antioxidant activity of (SSA) and prepared complexes; Free radical scavenging activity (DPPH) and CUPRRAC methods. Tri and di-tin complexes gave high percentage inhibition than ligands with both methods due to tin moiety; the triphenyltin carboxylate complex was the best compared with the others. Also, antibacterial activity was assessed by using the agar ditch method against (Escherichia coli) and (Staphylococcus aureus) bacteria. The complexes gave high activity in inhibition than the ligand derived. Also Triphenyltin carboxylate complex showed higher antibacterial activity than the dimethyltin complex against two types of bacteria (Escherichia coli) and (Staphylococcus aureus).

KEY WORDS: Antioxidant activity, Antibacterial activity, Sulfosalicylic acid, Tri phenyl tin chloride, Escherichia coli, Staphylococcus aureus bacteria

Bull. Chem. Soc. Ethiop. 2023, 37(6), 1435-1442. DOI: https://dx.doi.org/10.4314/bcse.v37i6.11
Exploring novel coral reef-like RuO2 oxides: Synthesis and physicochemical characterizations of gatifloxacin-based Ru(III) complexes
Authors: Althubeiti Khaled
Published: September 2023

ABSTRACT. Two mixed-ligand complexes of Ru(III) ions were synthesized and used to generate nanostructured RuO2 oxide. Complex A contains gatifloxacin (L1), the amino acid glycine (L2), and Ru(III) ions in a 1:1:1 ratio. Complex B contains gatifloxacin (L1), the amino acid alanine (L3), and Ru(III) ions in a 1:1:1 ratio. The synthesized complexes were characterized using UV-Visible and IR spectroscopies, molar conductance, elemental analyses, thermogravimetry, XRD, and SEM-EDX techniques. In both complexes, the L1 ligand acts as a bidentate and uses the nitrogen atoms of the piperazine ring to capture the Ru(III) ions, while the L2 and L3 ligands capture the Ru(III) ions using their oxygen atom of the carboxylate group and the nitrogen atom of the amino group. The atmosphere around the Ru(III) ion is octahedral, and the complexes were formulated as [RuL1L2(H2O)2]Cl2 and [RuL1L3(H2O)2]Cl2 for Complex A and Complex B, respectively. Complex A was directly decomposed in air at 600 °C for 3 h to produce RuO2 oxide (Oxide A), and complex B was decomposed under the same conditions to produce RuO2 oxide (Oxide B). Morphologically, oxide A and oxide B have a coral reef-like texture with large holes and cavities.

KEY WORDS: Gatifloxacin, Ru(III) ion, Glycine, Alanine, Morphology, RuO2 oxide

Bull. Chem. Soc. Ethiop. 2023, 37(6), 1443-1457. DOI: https://dx.doi.org/10.4314/bcse.v37i6.12
Fabrication of novel PN-heterojunction CuS/TiO2 nanocomposite for the photocatalytic degradation of rhodamine B dye under visible light irradiation
Authors: Mahmood Zahid , Aslam Waheed , Bilal Muhammad , Javed Khalid
Published: September 2023

ABSTRACT. In the current study, a novel visible light-active photocatalyst CuS/TiO2 nanocomposite was synthesized by a template-free hydrothermal method. Fourier transform infrared spectroscopy (FTIR) confirmed the formation of synthesized nanocomposites and the structural characteristics of synthesized nanoparticles were characterized and confirmed by the X-ray diffraction (XRD) technique. The morphology and particle size of synthesized nanocomposites were measured by a field emission scanning electron microscope (FESEM), which revealed an average particle size of around 30 nm. The optimized efficiency of the fabricated photocatalyst was assessed for the photodegradation of rhodamine B (RhB) dye. It was observed that the photodegradation efficiency of CuS/TiO2-Y composites having a molar ratio of 1:1 for RhB was found to be 89.54% under visible light irradiation.

KEY WORDS: CuS/TiO2 nanocomposite, Heterojunction structure, Rhodamine B, Photodegradation, Visible light irradiation

Bull. Chem. Soc. Ethiop. 2023, 37(6), 1553-1564. DOI: https://dx.doi.org/10.4314/bcse.v37i6.19
Highly sensitive zero-order emission system - fluorescence detection-liquid chromatographic method for simultaneous estimation of two banned phenyl xanthene dyes in bottled chili sauce
Authors: M. Ali Hazim
Published: September 2023

ABSTRACT. A zero-order emission system was applied to address the variation in emission wavelengths between analytes. Also, it assists to compensate for the drop in emission intensity resulted from the changes in analyte excitation wavelength. So, a high performance liquid chromatography-fluorescence detector (HPLC-FLD) with zero order emission mode was used for the simultaneous estimation of rhodamine B (RhB) and eosin Y (EsY) based on their native fluorescence. The presented method is considered the first fluorescence method for simultaneous determination of RhB and EsY. The efficiency of the developed method was tested by determining the two dyes in a high matrix sample, chili sauce. Under the optimum condition, a linear calibration graphs for RhB and EsY in range of 0.5 -300 ng/mL with r = 0.9994 and 0.9991, respectively, were acquired. The limits of detection for RhB and EsY were 0.344 ng/mL (0.355 ng/g) and 0.215 ng/mL (0.222 ng/g), respectively. The recovery percentage and relative standard deviation of two analytes were obtained in the range of 98.38-101.86% and 0.83-1.66%, respectively. RhB was detected only in one chili sauce sample at a concentration of 0.388 ng/mL while EsY was not found in any sample.

KEY WORDS: Rhodamine B, Eosin Y, HPLC-FLD, Zero-order emission mode, Solid phase extraction

Bull. Chem. Soc. Ethiop. 2023, 37(6), 1315-1323. DOI: https://dx.doi.org/10.4314/bcse.v37i6.2