bluuebunny/crossref_metadata_2025 huggingface dataset:
Functional Science Education: The Role of Science Educators in Post Covid – 19 Era
Authors: Umaru Usman , Umar Abubakar , Mohammed Usman , Abdulmumini Garba
Published: May 2023

It is widely agreed by many that COVID-19 has had a significant impact on education on a global scale. It has impacted virtually every facet of society, including social, cultural, economic, and educational factors. Changes in teaching objectives and methodologies are the main ways that COVID-19 has affected science education. This study explored the vital roles science educators’ would play in the post-COVID era. The study found out among others that science educators perform a variety of important roles in the post-pandemic environment, including those of science communicators, critical thinkers, knowledge creators, disruptive innovators, advocates against misinformation, and future-ready educators. The study recommended among others strategies on the basis of worldwide research outcome of science education on how to improve science education in the post COVID-19 Era; for science teachers to be able to contribute to research-based and evidence-based practices in their areas of expertise, teachers should also be supported financially through research grants and financing.
First record of Tinodes maculicornis (Pictet, 1834) (Trichoptera: Psychomyiidae) from the Pannonian region in Slovakia
Authors: Navara Tomáš , Chvojka Pavel , Kokavec Igor , Lukáš Jozef
Published: May 2023

During our study of the caddisfly fauna of the Danube, its branches and oxbow lakes, including the urban and suburban areas of Bratislava (the capital of Slovakia), we made an unexpected record of the species Tinodes maculicornis (Pictet, 1834), which is the first documented occurrence of this species in the Pannonian ecoregion (Hungarian lowlands) and also the easternmost record so far.
Đánh giá hiệu quả giảm đau của gây tê ống cơ khép dưới hướng dẫn của siêu âm sau phẫu thuật nội soi khớp gối
Authors: Thanh Xuan Nguyen
Published: May 2023

TÓM TẮT

Đặt vấn đề: Giảm đau sau phẫu thuật nội soi khớp gối đóng vai trò quan trọng, giúp bệnh nhân tập vận động sớm, đồng thời giảm các biến chứng liên quan. Nghiên cứu nhằm đánh giá hiệu quả của gây tê ống cơ khép để giảm đau sau phẫu thuật nội soi khớp gối.

Đối tượng, phương pháp: Nghiên cứu mô tả tiến cứu, 70 bệnh nhân sau phẫu thuật nội soi khớp gối bằng phương pháp gây tê tủy sống được chia ngẫu nhiên thành hai nhóm. Nhóm OCK: Giảm đau bằng gây tê ống cơ khép dưới hướng dẫn siêu âm với levobupivacain 0,25% thể tích 20 mL tại thời điểm bệnh nhân bắt đầu có vận động nhưng chưa có cảm giác đau kết hợp paracetamol 1 gam và diclofenac mỗi 12 giờ. Nhóm chứng: Giảm đau bằng hợp paracetamol 1 gam và diclofenac mỗi 12 giờ. Giảm đau giải cứu bằng morphin 3 - 5 mg tĩnh mạch nếu VAS ≥ 4 điểm. Theo dõi điểm VAS khi nghỉ, VAS vận động, tần số tim, huyết áp, tần số thở, SpO2 vào các thời điểm 0, 1, 3, 6, 9, 12, 18, và 24 giờ sau phẫu thuật, lượng morphin giải cứu, sự hài lòng của bệnh nhân và các tác dụng không mong muốn ở cả hai nhóm.

Kết quả: Điểm VAS khi nghỉ từ 1 - 12 giờ và điểm VAS khi vận động từ 1 - 12 giờ trong 24 giờ sau phẫu thuật của nhóm OCK thấp hơn có ý nghĩa thống kê so với nhóm chứng. Tổng liều morphin tiêu thụ của hai nhóm là tương đương nhau (2,9% và 2,9%). Tỷ lệ bệnh nhân hài lòng về chất lượng giảm đau (77,14% ở nhóm 1 và 65,71% ở nhóm 2), tỷ lệ buồn nôn và/hoặc nôn và tỷ lệ ngứa khác biệt không có ý nghĩa thống kê giữa hai nhóm.

Kết luận: Gây tê ống cơ khép giúp tăng cường hiệu quả giảm đau của bệnh nhân sau phẫu thuật nội soi khớp gối. Vì vậy, gây tê nên được thực hiện thường quy như là một thành phần của giảm đau đa mô thức sau phẫu thuật nội soi khớp gối.
Nghiên cứu hiệu quả gây tê đám rối thần kinh cánh tay đường trên đòn bằng levobupivacain 0,375% so với lidocain 1,5% trong và sau phẫu thuật từ 1/3 dưới cánh tay đến bàn tay
Authors: Thanh Xuan Nguyen
Published: May 2023

Odjectives: With the utilizing of ultrasound, supraclavicular brachial plexus block using minimal effective volume of 20 ml. Moreover, the low dose anesthetic with low volume facilitates complications prevention but it is still sufficient effective local anesthesia. We aimed to determine the effect of ultrasound - guided supraclavicular brachial plexus block by 20 ml local anesthetic for one third lower arm - hand surgery.
Methods: Fifty patients belonging to American Anesthesiology Society physical status Classes I, II, and III scheduling for elective one third lower arm - hand surgery were randomly divided into two groups. Group I received supraclavicular block with 20 ml levobupivacaine 0.375%. Group II received supraclavicular block with 20 ml of 1.5% lidocaine mixed with 1/200000 adrenaline. Results: The block was successful in 100%. The average time of sensory and motor inhibition of the levobupivacaine group of 8.43 ± 1.90 and 6.52 ± 1.85 hours was longer than that of the lidocaine group of 2.72 ± 0.99 and 2.26 ± 0.87 hours respectively with p < 0,05. The duration of analgesia of the levobupivacaine group (9.66 ± 1.84) hours was longer than that of the lidocaine group (4.19 ± 2.24) hours with p < 0,05. No complications have been encountered.
Conclusion: With the utilizing of ultrasound, a minimal effective volume of 20 ml has been effected highly and decreased incidence of complications for supraclavicular brachial plexus block.
Nghiên cứu hiệu quả của gây tê tủy sống bằng Levobupivacain - Fentanyl kết hợp với gây tê ngoài màng cứng trong và sau phẫu thuật cắt tử cung, phần phụ qua đường ngang dưới rốn
Authors: NGUYỄN ANH
Published: May 2023

Mục tiêu: Đánh giá hiệu quả gây tê tủy sống (TS) bằng levobupivacain-fentanyl kết hợp tê ngoài màng cứng (NMC) trong và sau phẫu thuật (PT) cắt tử cung, phần phụ qua đường ngang dưới rốn.

Đối tượng, phương pháp: 70 bệnh nhân (BN) mổ cắt tử cung phần phụ đường bụng có kết hợp gây tê tủy sống - ngoài màng cứng (CSE) chia làm 2 nhóm, nhóm 1 tê TS bằng levobupivacain, nhóm 2 tê TS bằng levobupivacain kết hợp fentanyl.

Kết quả: Tỷ lệ BN cần dùng thêm levobupivacain 0,25% trong PT ở nhóm 1 cao hơn nhóm 2, lượng levobupivacain dùng trong 48h đầu sau PT ở 2 nhóm tương đương nhau, 100% BN đạt mức giảm đau tốt cho PT, thời gian đạt ức chế vận động M3 trung bình < 7 phút, sau PT điểm VAS lúc nghỉ ở cả 2 nhóm đều < 3, tất cả BN phục hồi vận động M0 sau 4 giờ và đạt an thần mức N0, trong và sau PT huyết động ổn định, không ức chế hô hấp.

Kết luận: Kết hợp fentanyl khoang dưới nhện giúp giảm tỷ lệ BN dùng thêm levobupivacain NMC; CSE giúp ổn định huyết động, không gây ức chế hô hấp trong và sau PT, là lựa chọn an toàn cho các BN nguy cơ cao.

ABSTRACT THE EFFICACY OF LEVOBUPIVACAIN - FENTANYL FOR COMBINED SPINAL EPIDURAL ANAESTHESIA DURING AND AFTER HYSTERECTOMY, SALPINGO - OOPHORECTOMY THROUGH HORIZONTAL INCISION IN LOWER ABDOMINAL: A STUDY

Objectives: To evaluate the efficacy of levobupivacain - fentanyl for combined spinal epidural (CSE) anesthesia during and affter hysterectomy, salpingo - oophorectomy through horizontal incision in the lower abdominal.

Methods: 70 patients undergoing abdominal hysterectomy, salpingo - oophorectomy with CSE anesthesia were randomized into 2 groups: Group 1: spinal levobupivacain, Group 2: spinal levobupivacain - fentanyl.

Results: the percentage of patients needed extra doses of levobupivacain 0,25% during operation of group 1 higher than that of group 2, total dose of levobupivacain used in 48 hours after surgery was similar between 2 groups, good anagelsic effects were obtained in all cases, the mean onset time of motor block M3 was < 7 minutes. Postoperatively, VAS at rest was < 3 in both groups, all patients achieved motor recovery M0 after 4 hours and sedation level N0. Intraoperative and postoperative haemodynamics was stable and there was no respiratory depression.

Conclusions: Combined subarachnoid fentanyl reduces the proportion of extra epidural levobupivacain using, CSE does not cause respiratory depression and helps in stablizing haemodynamics, therefore, is a safe choice for high - risk patients.
Bước đầu đánh giá hiệu quả của gây tê mặt phẳng cơ dựng sống dưới hướng dẫn siêu âm trong giảm đau sau phẫu thuật cột sống thắt lưng
Authors: Dung Ngo
Published: May 2023

TÓM TẮT
Mục tiêu: Nghiên cứu nhằm đánh giá hiệu quả giảm đau cho các bệnh nhân sau phẫu thuật cột sống thắt lưng bằng phương pháp gây tê mặt phẳng cơ dựng sống 2 bên dưới hướng dẫn của siêu âm.

Đối tượng, phương pháp: Nghiên cứu lâm sàng ngẫu nhiên có đối chứng. Gồm 50 bệnh nhân có chỉ định phẫu thuật cột sống thắt lưng tại khoa Gây mê Hồi sức B - Bệnh viện Trung Ương Huế từ tháng 1 đến tháng 5 năm 2023, đáp ứng các tiểu chuẩn đưa vào nghiên cứu. Bệnh nhân được ngẫu nhiên chia thành 2 nhóm: Nhóm ESP (25 bệnh nhân) được thực hiện phong bế mặt phẳng cơ dựng sống lúc kết thúc phẫu thuật và Nhóm Chứng (25 bệnh nhân) không thực hiện phong bế mặt phẳng cơ dựng sống. Thực hiện đánh giá điểm đau VAS tại các thời điểm T1, T2, T4, T6, T8, T12, T18, T24; ghi nhận lượng morphin sử dụng; ghi nhận các tác dụng phụ, biến chứng không mong muốn.

Kết quả: Qua nghiên cứu chúng tôi ghi nhận phương pháp gây tê mặt phẳng cơ dựng sống có hiệu quả giảm đau tốt với trung bình điểm đau VAS tại các thời điểm sau phẫu thuật ở nhóm ESP thấp hơn nhóm chứng. Lượng morphin trung bình sử dụng ở nhóm ESP là 8.64 mg thấp hơn nhóm chứng là 15.9mg (p < 0.05). Không ghi nhận biến chứng nào khi thực hiện kỹ thuật phong bế mặt phẳng cơ dựng sống.

Kết luận: Phương pháp phong bế mặt phẳng cơ dựng sống là một phương pháp giảm đau hiệu quả và an toàn cho các bệnh nhân sau phẫu thuật cột sống thắt lưng với chất lượng giảm đau tốt và ít biến chứng, giảm sử dụng và hạn chế được các tác dụng phụ của morphin.
A trianoni szerződéshez kapcsolódó japán dokumentumok elemzése és értékelése Diplomáciai szövegek a magyar–csehszlovák és a magyar–román határ megállapításáról
Authors: Umemura Yuko
Published: May 2023

2020-ban volt az első világháborút lezáró párizsi békekonferencia 100. évfordulója. Az MTA „Trianon 100” kutatóprojekt keretében a Magyarországot érintő japán diplomáciai jelentésekkel foglalkoztam, amelynek eredményeként 2021-ben megjelent a Trianon és a japán diplomácia című forrásgyűjtemény. Ebben a tanulmányban a megjelent kötetben közölt, magyarra fordított anyagot felhasználva elemzem és értékelem a kötet legfontosabb szövegeit. Elsősorban a magyar–csehszlovák és a magyar–román határok megállapításában részt vevő japán biztosok jelentéseit vizsgálom, amelyekben részletes leírások és naplóbejegyzések olvashatók. Vajon hogyan zajlott le a határmegállapítási folyamat, milyen véleménye volt a japán biztosoknak az új határvonalról? Valóban tudtak-e hatást gyakorolni a döntésre? Milyen tanúságot vonhattak le egész tevékenységükből? Írásomban ezekre a kérdésekre keresem a választ.
A KRE Japanológia Tanszék újabb eredményei
Authors: Takó Ferenc
Published: May 2023

Takó Ferenc recenziója a Kortárs Japanológia IV. című kötetről (szerk. Doma Petra és Farkas Mária Ildikó, Károli Gáspár Református Egyetem – L’Harmattan Kiadó, Budapest, 2022
Három Edo-kori kibyōshi fordítása és értelmezése
Authors: Gacsályi Anna
Published: May 2023

Gacsályi Anna recenziója Csendom Andrea Kinkin szenszei álmától a jó és rossz lelkek küzdelméig – Három edói kibjósi a XVIII. század végi Japánból című kötetéről (Budapest: Ráció Kiadó, 2021).
A japán klasszikus a szamurájok hajnaláról immáron magyarul
Authors: Gottner Richárd Gábor
Published: May 2023

Gottner Richárd recenziója a Heike monogatari új, Bärnkopf Zsolt által készített magyar fordításáról.
Department of Nursing, Health Polytechnic of the Ministry of Health Surabaya, Surabaya, Indonesia
Authors: Sumasto Hery , Nugraheni Wahyuningsih Triana , Ariyanti Ida
Published: May 2023

BACKGROUND: The number of pregnant women with high risk is still very high. In 2019–2020, at the Merak Urak Health Center, there were 104 pregnant women, at the Palang Health Center 213 pregnant women. Meanwhile, the target of the Millennium Development Goals in 2015 is 102/100,000 live births.
AIM: The aim of the research is to empower families in preventing high-risk pregnancies based on Family-Centered Empowerment.
METHODS: The study used analytical observational methods to determine the influence between variables. The research approach uses cross-sectional. The study population was all families with pregnant women in the working area of Merak Urak Health Center and Palang Health Center, Tuban Regency. The analysis test used the rule of the thumb in SEM, with the maximum likelihood method requiring a minimum sample of 150 respondents. The independent variable is family centered empowerment and the dependent variable is efforts to prevent high risk of pregnancy. Data were collected by questionnaire and analyzed by pair T-test.
RESULTS: The results showed that there was an influence of family interpersonal factors with cognitive factors and personal traits on efforts to prevent high-risk pregnancies (T = 2.44; T = 3.34). The influence of cognitive factors on efforts to prevent high-risk pregnancy was found (T = 2.56). The influence of personal traits factors on efforts to prevent high-risk pregnancy was obtained (T = 2.51).
CONCLUSION: The new finding in this study is the formation of a Family centered empowerment model to improve the family’s ability to prevent high-risk pregnancy, which consists of family interpersonal, cognitive, and personal traits. The family-centered empowerment model can improve the ability of families to care for pregnant women to prevent high risk of pregnancy through aspects of empowering, supporting, self-efficacy, knowledge, and attitude.
Sturm's Theorem for Min matrices
Authors: Mersin Efruz Özlem
Published: May 2023

In the present paper, we study Min matrix $ \mathcal{A}_{min} = \left[a_{min\left(i, j\right)}\right]_{i, j = 1}^n $, where $ a_s $'s are the elements of a real sequence $ \left\lbrace a_s\right\rbrace $. We first obtain a recurrence relation for the characteristic polynomial for matrix $ \mathcal{A}_{min} $, and some relations between the coefficients of its characteristic polynomial. Next, we show that the sequence of the characteristic polynomials of the $ i \times i \left(i \leq n\right) $ Min matrices satisfies the Sturm sequence properties according to different required conditions of the sequence $ \left\lbrace a_s\right\rbrace $. Using Sturm's Theorem, we get some results about the eigenvalues, such as the number of eigenvalues in an interval. Thus, we obtain the number of positive and negative eigenvalues of Min matrix $ \mathcal{A}_{min} $. Finally, we give an example to illustrate our results.
On perturbation of aesthetic curves
Authors: Baias Alina Ramona , Crǎciun Ioana
Published: May 2023

The notion of aesthetic curve plays an essential role in the generation of aesthetic forms. In order to quantify the aesthetics in art and science some aesthetic standards were introduced but, the beauty is perceived by people in various ways. Bearing this idea in mind, we introduce in this paper the notion of an approximate aesthetic curve by perturbing the equation that defines it. Moreover, we study the relation between the solutions of the perturbed equation and the solutions of the exact equation. For the equation of neutral curves, some stability results in Ulam sense are obtained. We prove that the equation of aesthetic curves by perturbations to an equation for convergent curves is Ulam stable, while by perturbation to an equation for divergent curves, it is not Ulam stable.
Un scandale danois : visons, État de droit et COVID-19
Authors: Madsen Mikael Rask , Olsen Henrik Palmer
Published: May 2023

Alors que le Danemark est auréolé d’une réputation flatteuse concernant le fonctionnement de l’État de droit dans les classements internationaux, la décision du gouvernement d’abattre tous les visons d’élevage par peur d’une mutation du coronavirus a terni le tableau. En particulier lorsqu’on a découvert qu’il n’y avait pas de base légale pour cette décision très importante, impliquant les acteurs de la santé et de la police et ayant abouti à l’extermination de millions d’animaux, il y a eu un mouvement de protestation. L’article expose l’évolution de la situation depuis les décisions jusqu’au scandale et comment cela a abouti à une commission d’enquête et à une crise politique menaçant la Première ministre Mette Frederiksen. À partir de la sociologie des scandales publics, l’analyse montre comment la critique du gouvernement s’est transformée en mouvement de protestation en s’appuyant sur des arguments de type juridique et normatif.
Crise politique et réponses à l’épidémie de COVID-19 en Suède
Authors: Aucante Yohann
Published: May 2023

A l’instar de la plupart des pays, la Suède a été fortement impactée par la pandémie de COVID-19. En 2020 et 2021, le pays s’est toutefois distingué de ses voisins proches et du reste de l’Europe par une approche particulièrement libérale, refusant d’imposer des confinements et s’appuyant en premier lieu sur les recommandations de l’Agence de santé publique. Dans cet article, nous postulons que cette réponse peut être mieux comprise à la lueur de la crise politique qui touche la Suède depuis 2014, dans le contexte d’un gouvernement affaibli et sous la pression d’une droite nationale en forte progression.
Universal Design for Learning
Authors: Brandt Sarah , Szarkowski Amy
Published: May 2023

Universal design for learning (UDL) is an instructional design framework aimed at creating expert learners by reducing barriers to learning. Rooted in scholarship, UDL is a promising tool to support educators of learners who are deaf with disabilities; yet it is necessary to explore what is known about implementing UDL within this population. This chapter provides readers with foundational knowledge of UDL including its history, development, significance, core concepts, and guidelines. Scholarly evidence regarding UDL implementation is highlighted and gaps within the population of learners who are deaf with disabilities are noted. Teaching scenarios from preschool through high school illustrate how teachers of learners who are deaf with disabilities can use UDL-based strategies to promote independence, literacy, and generalization. Action steps for professionals to foster and promote UDL for learners who are deaf with disabilities are provided.
A Survey on Cyber Security and AI-Based Industry 4.0
Authors: Tripathi Bramha S. , Gupta Ritu
Published: May 2023

Nowadays, industry 4.0 is very popular technology for industrial automation & rapid development of electrical and electronics technology, information technology, or advanced manufacturing technology. In this research concluded the challenges of cyber security and AI based industry 4.0, and discusses the key emerging technologies like internet of things, cloud computing, cyber security, artificial intelligence, etc., for making an industry 4.0 revolution. In this research the analysis of major issues and potential solution to key emerging technologies of new world is presented. This research gives the all-industrial revolution comparison analysis to growth of manufacturing industries and its benefits of different revolution. In this research paper give the analysis of why industry 4. 0 is best for the advanced manufacturing for growth of industries. This chapter provides a holistic view of cyber security and artificial intelligence in the industry 4.0 landscape, identifying and analyzing its fundamental concept, challenges, and ongoing future trends.
The Blockchain-Empowered Application
Authors: Saini Kavita , Tyagi Arnav , Antal Akshat
Published: May 2023

Blockchain is an acquired information framework that incorporates a square chain. Blockchain capacities as a common record or as an overall record keeping arrangement of all exchanges on an incorporated blockchain. Blockchain is a successful framework for putting away and taking care of records of exchange at its center. All the more explicitly, blockchain is a typical, extremely durable record of circulated trades working from connected trade squares and putting them away in a high level data set. Blockchain relies upon developed cryptographic strategies to permit any member in an organization to convey, (for example, putting away, trading, and showing information), without earlier certainty between the collections. All members become mindful of participation with the blockchain and permit framework affirmation before information is incorporated, working with trustless coordinated exertion between associations. Blockchain is virtual digital money Bitcoin's spine innovation.
Convergence of Machine Learning and Blockchain Technology for Smart Healthcare Applications
Authors: Jyothi K. C.  , Khare Neelu
Published: May 2023

The technology boom in Industry 4.0 has resulted in the generation of large volume of medical data. Smart healthcare systems have burgeoned with the convergence of blockchain, machine learning, and internet of things (IoT). The amalgamation of privacy-preserving blockchain technology and predictive diagnosis by machine learning models produces an enhanced healthcare system. This chapter aims to shed light on the machine learning algorithms and blockchain technologies currently used in the healthcare industry. The advantages of opting for blockchain for preserving data integrity and privacy are highlighted. A few applications and steps involved in implementing blockchain and machine learning in healthcare, as well as the challenges faced while doing so, are discussed. Finally, a theoretical blockchain-machine learning internet of medical things(IoMT) framework is proposed, drawing from the recent research advancements.
Augmented Reality and Virtual Reality in E-Governance
Authors: Aswini J.  , Malarvizhi N.  , Subramanian Siva , Gayathri A.
Published: May 2023

In recent years, augmented reality & virtual reality (AR/VR) has been seen as a technology with huge potential to give companies an operational and competitive advantage. But despite the use of new technologies, companies still face challenges and cannot immediately achieve performance. In addition, companies must adopt attractive technologies and analyse the areas where these technologies can be adopted, which emphasizes the importance of establishing appropriate e-government practices. This study explores how AR/VR governance is applied to support the development of sustainable AR/VR applications and analyse the negative impacts based on application domains. The study illustrates what practices are used to obtain information that helps engage technologies by overcoming obstacles with recommended actions that lead to desired results. The research helps to identify the most important scopes and limitations of AR/VR in e-governance.
Artificial Intelligence and Its Integration with Regenerative Medicine Approach
Authors: Umar Tungki Pratama , Agustini Dessy , Makram Abdelrahman M. , Muzzamil Muhammad , Stevanny Bella , Elsheikh Randa , Swathi N. L. , Garg Tulika , Putri Aulia Ananditia , Jain Nityanand
Published: May 2023

Artificial intelligence (AI) and regenerative medicine are becoming inextricably linked. As a result, the long-term outlook for the advancement of AI, regenerative medicine, and stem cells in the healthcare industry is incredibly bright. AI is being used in healthcare to discover new drugs and to provide personalized medicine based on big data. It can improve medical diagnosis and treatment plans. Regenerative medicine has the potential to repair damaged tissues and organs through stem cell-based regenerative medicine. Stem cell research is also undergoing significant development as a major component of the approach to regenerative medicine. In the future, it is expected that it will contribute to more personalized and more effective treatments. Integrating AI can help model and simulate cellular behavior, analyze, and process images for cell tracking and tissue engineering, and analyze large amounts of genomic and proteomic data. Together, these fields have the potential to transform healthcare and improve patient outcomes.
Computational Linguistic and SNA to Classify and Prevent Systemic Risk in the Colombian Banking Industry
Authors: Sandoval Luis G. Moreno , Pantoja Rojas Liliana M. , Pomares-Quimbaya Alexandra , Orozco Luis Antonio
Published: May 2023

The banking sector has been one of the first to identify the importance of social media analysis to understand customers' needs to offer new services, segment the market, build customer loyalty, or understand their requests. Users of Social Networking Sites (SNS) have interactions that can be analyzed to understand the relationships between people and organizations in terms of structural positions and sentiment analysis according to their expectations, opinions, evaluations, or judgments, what can be called collective subjectivity. To understand this dynamic, this study performs a social network analysis combined with computational linguistics through opinion mining to detect communities, understand structural relationships, and manage a Colombian case study's reputation and systemic risk in the banking industry. Finagro and BancoAgrario are the network leaders in both centralities, most of the main actors have a negative polarity, and MinHacienda and cutcolombia with totally different orientations appear in all methods.
Modeling the Efficiency of Operating Costs in Introducting Innovations in the Agrarian Sphere
Authors: Oliinyk Oleksandr , Oliynik Tamila , Makogon Vitaly , Brik Svitlana
Published: May 2023

The purpose of the work is to demonstrate the results of modeling the impact of innovation on the efficiency of operating costs for crop production by agricultural enterprises. Based on the dialectical method of cognition, abstract-logical, and graphic methods were used; nonlinear correlation-regression analysis and economic-mathematical modeling It is established that the innovations of technical and technological character contribute to the increase of the extremum of the yield function. At the same time, the impact of innovation on the profit function is twofold. In the case of free product innovation, an increase in output estimated at market prices generates an increase in the extremum of the profit function while increasing the profit optimum of costs. That is why the latter is approaching the technological optimum. In turn, the innovation payoff affects the profit curve, reducing the value of the cost optimum and the function extremum. However, a significant increase in the cost of an innovative product can lead to a decrease in profit below the achieved level.
Risk and Revenue Management in the Chinese Auto Loan Industry
Authors: Peng Jianping , Liu Wanli , Huang Zhenheng , Xu Dongmei , Cai Qinglei , Quan Jing ("Jim")
Published: May 2023

The automobile consumption credit business promotes the development of the automobile industry. However, the current credit system in China requires further refinement. Thus, the credit loan business is associated with certain risks, and company profits are often negatively impacted by clients who default on loans. Based on the data, this article leverages the economic and financial theories of consumer credit risk control to construct a logistic model to predict customers' default probability. Then, a quadratic regression model is established to determine the optimal commission structure to balance profitability with incentives from retail stores. Results show that the macro-level variables are negatively associated with the probability of good behavior. The personal level variables exhibit a positive association. In addition, a negative coefficient in the quadratic profit equation indicates the presence of an inverted “U” relationship between profit and commission. Corresponding suggestions are put forward.
Adaptive Modularized Recurrent Neural Networks for Electric Load Forecasting
Authors: Huang Fangwan , Zhuang Shijie , Yu Zhiyong , Chen Yuzhong , Guo Kun
Published: May 2023

In order to provide more efficient and reliable power services than the traditional grid, it is necessary for the smart grid to accurately predict the electric load. Recently, recurrent neural networks (RNNs) have attracted increasing attention in this task because it can discover the temporal correlation between current load data and those long-ago through the self-connection of the hidden layer. Unfortunately, the traditional RNN is prone to the vanishing or exploding gradient problem with the increase of memory depth, which leads to the degradation of predictive accuracy. Many RNN architectures address this problem at the expense of complex internal structures and increased network parameters. Motivated by this, this article proposes two adaptive modularized RNNs to tackle the challenge, which can not only solve the gradient problem effectively with a simple architecture, but also achieve better performance with fewer parameters than other popular RNNs.
A Modified Methodology for Regional Material Flow Analysis and its Application to Four Municipalities in China
Authors: Lv Kangjuan , Cai Daxia , Cheng Yu
Published: May 2023

The rapid economic development is inevitably accompanied with resource depletion and environment degradation. To understand the status of material metabolism and identify effective solutions for environmental protection in China, this study develops a novel and standardized methodology for accounting regional material flows. Compared with previous studies, the proposed methodology takes renewable energy into consideration and provides a more accurate estimation method for non-metallic minerals used for construction. Then, the proposed approach is used to assess the material metabolism of four municipalities in China during 1997-2017. The results show that the domestic extraction and domestic processed output experience an increasing trend and then appear to decrease at the end of study period. Furthermore, Chongqing consumes the largest amount of material with lowest resource utilization efficiency, while Shanghai is predicted to enjoy a generally decline in domestic material consumption per capita. Finally, some policy implications are achieved for sustainable development in China.
Investment Efficiency of Chinese Enterprises Under ‘Belt and Road' Initiatives
Authors: Lin Ping , Lin Mengting , Lin Boqiang
Published: May 2023

In recent years, the economic effects of the belt and road initiative have attracted much attention. However, few related studies have explored how this initiative affects the investment efficiency of enterprises. This article regards the ‘belt and road' initiative as a quasi-natural experiment and investigates its effects on the investment efficiency of Chinese enterprises. The difference in difference model was used based on data on Chinese listed companies in 2011-2018. According to the findings of this study, the belt and road initiative significantly increased the investment efficiency of Chinese enterprises. On this basis, this paper explores the paths with which the belt and road initiative affects the investment efficiency of Chinese enterprises from the perspectives of both environmental uncertainty and tax incentives. The mediating effect of environmental uncertainty between the belt and road initiative and the investment efficiency of Chinese enterprises assumes a significant “masking effect,” while the mediating effect of tax incentives between them is not obvious.
Comparison of face-to-face tracheal intubation and conventional head-end tracheal intubation using Airtraq™ video-laryngoscope in adults – A randomised study
Authors: Bharti Swati , Chaudhary Sujata , Salhotra Rashmi , Meena Seema
Published: May 2023

Background and Aims:

Tracheal intubation can be difficult in certain scenarios where the head-end of the patient is not accessible as in entrapped casualties. A face-to-face technique using a video-laryngoscope can prove to be useful in such scenarios. However, the two positions of tracheal intubation namely, face-to-face and head-end, using video-laryngoscope have never been compared in patients.

Material and Methods:

Fifty patients of either sex, between 18 and 60 years, ASA class I/II, MPC I/II, scheduled to undergo surgical operations requiring general anesthesia with tracheal intubation were randomly allocated to either Group F (face-to-face intubation) or Group H (head-end intubation). Intubation was performed using Airtraq™ video-laryngoscope in both groups. Time taken for successful intubation, device insertion time, glottic view as per Cormack and Lehane (CL) grade, ease, attempts, the incidence of failed intubation, and hemodynamic parameters were noted.

Results:

The time taken for successful intubation in Group F was significantly longer than in Group H (38.09 ± 19.45 s vs. 19.32 ± 9.86 s, respectively; P < 0.001). Three cases of failed intubation were noted in Group F compared to none in Group H (P = 0.235). Glottic view, ease, attempts, and hemodynamic parameters were comparable among the groups (P > 0.05).

Conclusion:

The time taken for successful tracheal intubation was longer in face-to-face technique than in head-end technique in patients with the normal airway. However, both techniques were similar in terms of glottic view, ease of intubation and number of intubation attempts, the incidence of failed intubation, and hemodynamic changes. Therefore, face-to-face tracheal intubation is a good alternative to secure the airway when the head-end is not accessible.
Свойства структуры случайных разбиений конечного множества в параметрической модели
Authors: Ivchenko Grigorii Ivanovich , Medvedev Yurii Ivanovich
Published: May 2023

Изучается структура случайных разбиений конечного $n$-множества на блоки в неравновероятной модели, когда на множестве всех разбиений задается некоторая параметрическая вероятностная мера. Проводится анализ асимптотических (при $n \to \infty$) свойств различных характеристик структуры: наборов чисел блоков заданных размеров, чисел малых и больших блоков, числа блоков средней зоны структуры, экстремальных и связанных с ними характеристик структуры.
Встраивание доказуемо неразрешимых задач в шифры гаммирования
Authors: Malyshev Fedor Mikhailovich
Published: May 2023

В связи с интенсивно развивающимися в настоящее время теорией квантовой криптографии и теорией квантовых вычислителей обсуждается возможность синтеза шифров с потенциально бесконечным множеством криптографических ключей, построенных на основе рекурсивно перечислимых, но не рекурсивных множеств.
Свойства подстановок, порождаемых одним классом фильтрующих генераторов
Authors: Sarantsev A V
Published: May 2023

Рассматривается класс подстановок на множестве двоичных строк длины $n$, координатные функции которых эквивалентны относительно преобразования, реализуемого аффинным регистром сдвига. Описаны нелинейные двоичные функции $f$, существенно зависящие только от первых трех переменных, и аффинные функции $l$ обратной связи регистра сдвига, для которых фильтрующий генератор с этим регистром сдвига и функцией усложнения $f$ порождает совокупность координатных функций подстановки. Вычислены степень нелинейности и разностная характеристика этого класса подстановок. С помощью этих подстановок построен класс нелинейных регистров сдвига с периодом $2^n-1$.
Multi-response optimization of the characteristics of wooden fuel sources for boiler applications
Authors: Karthick A. , Muthu Saravanan N. , Arul Marcel Moshi A. , Iyahraja S.
Published: May 2023

ABSTRACT. Various kinds of biomass fuels are used for boiler and other kinds of thermal applications. The presence of moisture, ash and calorific value are known to be the most significant quality factors which influence the effective performance of a biomass fuel for a plant. The reasons for measuring the above mentioned quality factors are to perform the economic analysis and to control the combustion. The relevant industries are interested to obtain a method for predicting these quality factors quickly and consistently; and also to identify biomass fuels containing optimal level of these factors. In the present work, five different biomass fuels have been considered such as rubber wood, eucalyptus wood, mixed wood (tamarind tree and neem tree woods), palm shell with fiber and juliflora woodchips. The moisture content in the considered woods have been found to be 27.74 wt.%, 37.78%, 30.19 wt.%, 23.26 wt.% and 37.01 wt.% respectively. The main objective of this work is to maximize the efficiency of production. Grey relational analysis has been carried out to optimize the moisture content, ash content and calorific value in order to achieve cost savings and fuel efficiency. Also, the economic analysis has been done with the operational costs.

 

KEY WORDS: Biomass, Fuels, Energy, Boiler, Optimization

Bull. Chem. Soc. Ethiop. 2023, 37(4), 1055-1064.                                                            

DOI: https://dx.doi.org/10.4314/bcse.v37i4.20
Comparative study of the effects of simulation models on the electronic and electrical parameters of a silicon pv cell
Authors: Esso Ehanam Tchedre Kpéli , Savadogo Mahamadi , Serge Tchouadep Guy , Zerbo Issa , Zoungrana Martial
Published: May 2023

For silicon solar cells simulation studies, one dimensional (1D), two dimensional 2D) and t

 

hree dimensional (3D) models are used. Depending of model proposed and assumptions done for the study, the electronic and electrical parameters and then the performance of the solar cell can be influenced.

This situation raises the problem of the relevance of the choice of the study model and the quality of the resulting results. This work, propose comparative study of the electronic and electric parameters of 1D model, 3D analytical model and 3D empirical model. In this study, continuity equations of excess minority electrons are solved for 1D and 3D models and analytical expressions of electronic parameters (density of electrons δ, intrinsic junction recombination velocity Sf0 and recombination velocity at back surface Sb) and electric parameters (Jsc, Voc, η) are derived. The influence of the model chosen on the electric and electronic parameters of the PV cell have been presented.

It appears in this study that the choice of the simulation model has a large influence on the electronic and electrical parameters the PV cell. The one-dimensional formulation (1D) overestimates the solar cell efficiency comparatively to the three-dimensional (3D) formulations. The study put in evidence also that for the same grain size, the solar cell efficiency resulting of 3D classical formulation is overestimates than one resulting of 3D empirical formulation.
Haematinic and immunomodulatory effects of leaf extract of gongronema latifolium following the onslaught of mucosa ulceration in wistar rats
Authors: Kayode Dasofunjo , Francisca M Timothy , John A Eyam , Ukorebi U Asuquo , Saviour G Usin , Maryval O Ogri , Iyang E Andem , Franklin O Odu , Markpeace E Osim , Patience T Mgbe
Published: May 2023

Helicobacter pylori (H. pylori) infection is a global public health problem; a higher burden of the infection was reported in developing countries including Nigeria and Cameroun. It has been associated with several gastrointestinal diseases, and recently implicated with some haematological abnormalities. This research was carried out to determine the effect of ethanol extract of Gongronema latifolium on haematological parameters of ulcerated Wistar rats.. The experiment was carried out on thirty-six (36) healthy male Wistar rats of weight ranges from (180-200) g. The rats were divide into six (6) groups of six (6) each. Group A served as  normal control, Group B (standard control), C and D was treated with100 and 200mg/kg body weight of extract of Gongronema latifolium respectively, Group E and F, was induced with ulcer and treated with   200 and 400mg/kg body weight of extract of Gongronema latifolium respectively .The extract was administered orally for 14 days. After 14 days of administration all rats were fasted for 14 hours, the rats were sacrificed and the blood was collected by cardiac puncture. Blood samples collected in to EDTA bottles were analyzed for haematological profile. The extract showed a significant increase in (p<0.05) in LYM, RBC, PLT, PCV, MXD, Hb, of the ulcerated rats when compared with the normal and standard control. However, the extracts of G. latifolium showed a significant decrease in (p>0.05) in WBC and HCT when compared with the normal control. This present study suggests that the extract of Gongronema latifolium following the onslaught of mucosa might fight against foreign infection possibly by phagocytosis or by generating antibodies that might enhance immune response possibly by immunomodulatory or suppressant or adjuvant action or by generating antibodies that might enhance immune response and might be a panacea to anaemic condition following mucosa ulceration.
Evaluation of serum cotinine, total protein, thiocyanate, neuron specific enolase and uric acid levels of cigarette smokers in calabar metropolis, nigeria: a cross sectional study
Authors: R E Eworo , U A Fabian , C Thomas , U O Luke , C A Usoro , D D Johnson , O U Egom , A N Ntamu , C A Nsonwu Anyanwu
Published: May 2023

Cigarette smoke contains harmful chemicals with deleterious health effects leading to oxidative stress and neuronal damage. This study investigated the levels of serum cotinine (COT), thiocyanate (thioc), uric acid (UA), neuron specific enolase (NSE), and the association between these variables in cigarette smokers. This cross sectional study enrolled 60 cigarette smokers and 45 non-smokers as participants. Serum thiocyanate and UA were estimated by colorimetric methods. Serum cotinine and NSE were determined by ELISA methods. Height and weight were measured and BMI computed. Data were analyzed using Student’s t-test, ANOVA, and Pearson’s correlation at P<0.05. Serum cotinine, thioc and NSE concentrations were significantly higher while BMI and UA levels were significantly lower (P<0.05) in smokers than in the controls. Age was not significantly different between the two groups (P>0.05). Age, COT, UA, thioc and NSE vary significantly (P<0.05) between the light, moderate and heavy cigarette smokers. From the least significant difference post hoc analyses, the mean age and UA level of light smoker were significantly higher (P<0.05) compared with the moderate smokers, while COT level of moderate smokers was significantly higher (P<0.05) compared with light smokers. Neuron specific enolase level of moderate cigarette smokers was higher (P>0.05) compared with the light smokers. The mean age of light smokers was significantly higher (P<0.05) compared with the heavy smokers, while the COT, thioc and NSE levels of light smokers were significantly lower (P<0.05) compared with the heavy smokers. Serum UA, thioc and NSE levels of moderate smokers were significantly lower (P<0.05), than those of the heavy smokers. Significant negative correlations were observed between age and COT (r = -0.554, P<0.001), age and thioc (r = -0.421, P= 0.001), age and NSE (r = -0.346, P=0.001), age against smoking pack years (r = -0.623, P<0.001) respectively. Significant positive correlations were observed between serum thioc and NSE (r = 0.324, P=0.012), COT against smoking pack years (r = 0.399, P=0.002), and NSE against smoking pack years (r = 0.311, P=0.015), correspondingly. This study has shown that high levels of cotinine and thiocyanate are associated with increased levels of neuron specific enolase, smoking pack years and decreased uric acid in smokers.
Paleobiogeographic affinities and paleoecological significance of paleogene ostracods from Eastern Benin Basin, Southwestern Nigeria
Authors: Adebambo B. A. , Oluwajana O. A. , Adebisi A. A.
Published: May 2023

Ditch cutting samples from the studied section of the RC-4 Hole, eastern Benin (Dahomey) Basin were studied for their ostracod content. 3671 ostracod fauna belonging to 22 species were recovered and analysed with a view to determining ostracod paleobiogeographic affinities and paleoecological conditions within this part of the basin during the Paleogene. Ostracod assemblages of the studied section bear close affinities to those of some North and West African basins. Species such as Bairdia ilaroensis, Leguminocythereis spp., Bairdia malzi, Paracosta kefensis, Xestoleberis tunisiensis, Buntonia jordanica, Aegyptiana duwiensis and Leguminocythereis lokossaensis identified from the RC-4 hole suggest shallow neritic conditions. Paracosta kefensis and Paracosta parakefensis occur in high abundance indicating marine upwelling conditions. Many of the species recovered in this study have also been identified from Iullemeden and southern Tethys basins (e.g. Sirte Basin) suggesting ostracod migration from Benin Basin (Gulf of Guinea) to southern Tethys basins through the Paleogene shallow Trans – Saharan Seaway. A distinct ostracod turnover at the top of the limestone unit (Ewekoro Formation) is related to the Paleoceneo Eocene Thermal Maximum (PETM) – a climatic phenomenon characterised by 5 – 8 C global temperature rise at the end of the Paleocene.
Elucidation of the active components and molecular mechanisms of action of Xiaoyin granules (XYG) against psoriasis and its synergism with acitretin using network pharmacology and molecular docking
Authors: Pu Yijing , Liu Sujun , Li Zhen , Xu Jiali
Published: May 2023

Purpose: To characterize the active components and molecular mechanisms of action of Xiaoyin Granule (XYG), and also to determine its synergistic effect with acitretin on psoriasis.

Methods: Bioactive targets of XYG, acitretin targets, and psoriasis-related targets were retrieved from public databases. Key bioactive compounds and targets were identified by bioinformatic and network pharmacology analysis. The binding affinities between bioactive compounds and crucial targets were evaluated through molecular docking analysis.

Results: A comprehensive screening of XYG revealed the identification of 323 bioactive compounds and 324 corresponding targets. A total of 47 acitretin targets and 1706 psoriasis-related targets were identified. Venn plot identified 155 candidate targets that contributed to the synergistic effects of XYG and acitretin against psoriasis. Bioinformatics analysis demonstrated that the candidate targets were associated with diverse pathways that participate in signaling transduction. A clustering analysis of protein-protein interaction (PPI) revealed the presence of three distinct clusters, with cluster 3 exhibiting a significant association with immunity and potentially serving a crucial function in the therapeutic mechanisms of XYG and acitretin capsule in the treatment of psoriasis. A herb-compound-target-pathway network was constructed and revealed a variety of bioactive compounds, including quercetin, apigenin, and luteolin, and targets, viz, PTGS2, PRKACA, and MAPK14. Molecular docking demonstrated that the key bioactive compounds had favorable binding affinities with hub targets.

Conclusion: This study provides insights into the potential mechanisms underlying the therapeutic effects of XYG when combined with acitretin capsules for treatment of psoriasis, thus laying a solid foundation for further investigations into its mechanism and clinical applications.