bluuebunny/crossref_metadata_2025 huggingface dataset:
Wearing Hijab: A Right or Constraint?
Authors: Li Yufei
Published: December 2022

The word “hijab” has for long been synonymous with terrorism, exposing Muslim women who wear hijab to racial and religious discrimination. (Sara Slininger 2014) “Anti-Muslim hate crimes rose 17-fold in 2001 compared to 2000.” (Anna Piela 2022; Human Rights Watch 2002) In addition to the dreaded cries of terrorism, “hijab” is also slightly paradoxically linked to oppression, inequality, and slavery that evoke people’s sympathy and urge to help. Governments and organizations issued decrees banning women from wearing the veils such as hijab and burqa -- first at sporting events, then on the streets, then in schools, and gradually throughout the country -- to emancipate vulnerable and stigmatized Muslim women from religious and patriarchal oppression, (Shaista Aziz 2022) liberating Muslim women while marginalizing them more and more. The well-intentioned “liberation movement” was met with the resistance of many “liberated” conservative Muslim women -- “Hijab is my right!” (Imran Qureshi 2022) The liberators, who imposed their views on others, issued edicts that forced the removal of the hijabs, edicts that were seen by conservative Muslim women as equally misogynistic as edicts that forced the wearing of hijabs. (Shaista Aziz 2022) The freedom that some conservative Muslim women seek is not the freedom to take off the hijab, but the freedom to choose to wear it or not. However, various regimes in the past and present made decisions for women by exploiting hijabs or other veils such as burqas and niqabs to oppress women or gain international fame. Other countries ban women from wearing hijabs in certain places or throughout the country, barbarizing and stigmatizing the “hijab” culture to achieve value export and colonization. Similarly, women do not have a choice about what to do with their hijabs. This paper will examine the effect and influence of wearing the hijab on the status and human rights of conservative Muslim women in modern times.
Analysis of the Relationship between Mindfulness, Personality, and Academic Performance
Authors: Wu Beier
Published: December 2022

Mindfulness in education research has focused solely on its ability to assist students’ academic performance. Mindfulness can be thought to have conflicting effects on academic success because of its complex link with personality and academic performance. Studies in this body of literature suggest that mindfulness has a positive impact, while others suggest that it has a negative impact. Some studies perceived the processes underlying the mindfulness effect on academic performance as enhancing self-awareness and self-regulation of student thinking, feelings, and behaviour. Nevertheless, the study points out a lack of studies on academic achievement, personality, and mindfulness. The study advises further research into the connections between mindfulness, personality, and academic achievement to determine whether, how, and under what circumstances students' mindfulness supports academic performance.
ASSESSING THE INFLUENCE OF OVERWEIGHT AXLES ON RUTTING LIVES IN FLEXIBLE PAVEMENTS USING PARAMETRIC SURVIVAL ANALYSIS
Authors: Hatoum Ali , Khatib Jamal , Barraj Firas , Elkordi Adel
Published: December 2022

The existence of rutting or permanent deformation on flexible pavement layers has always been a concern that negatively affects the performance of roads by reducing the lifespan of pavement structure and by posing a safety risk for vehicles over the road. Traffic overloading is one of the primary factors that accelerates the deterioration of flexible pavement. This study aims to determine the time to failure of the flexible pavement structures associated with rutting, to indicate the most significant factors affecting rutting, and to assess the influence of overweight axles on pavement rutting life using parametric survival analysis. The data used in this study are extracted from the LTPP program. The outcomes provide researchers and agencies with a good knowledge of the relations between several predictors including overweight axles and pavement performance and hence increase the ability of pavement to continue functioning properly over the design lifetime. The results indicated the factors that have a significant effect on pavement rutting life. Also, the results revealed that a 1% increase in the percentage of overweight axles can be related to a 16.24% increase in the hazard rate of rutting failure. Moreover, the survival time of rutting life can be reduced by up to 63% with the increase of the percentage of overloaded axles from 0% to 20%.
PALLADIUM (II)-CATALYZED SELECTIVE REDUCTION OF 4’-(PHENYLETHYNL)ACETOPHENONE IN THE PRESENCE OF A FORMIC ACID-TRIETHYLAMINE MIXTURE
Authors: Chayya Suzanne , Hijazi Akram , Daou Anis , Alaaeddine Ali , Sakr Mohamad , Younes Ghassan , El-Dakdouki Mohammad
Published: December 2022

An efficient and straightforward palladium acetylacetonate-catalyzed hydrogen transfer of 4'- (phenylethynyl)acetophenone was developed in this study. Formic Acid was found to be the best hydrogen source in this catalytic system in the presence of triethylamine. Excellent conversions and selectivity were obtained in reducing the starting internal aromatic alkyne to either (E)-1-(4- styrylphenyl)ethanone or an interesting cyclic product, 1-(phenanthrene-3-yl)ethenone, over the ketone functional group present. Over-reduction was rarely seen. The reaction conditions were optimized in terms of the choice of the palladium catalyst, temperature, solvent, and the H-donor/base combination. Using this catalytic system, a one-step synthetic pathway of the hindered cyclic ketone was afforded in excellent yields.
STRUCTURAL AND MAGNETO CONDUCTIVITY STUDIES OF NIO/SMBA2CU3O7-Δ SUPERCONDUCTING COMPOSITE
Authors: Basma Hadi , Rmeid Sajida , Awad Ramadan , Said Mohammed
Published: December 2022

In this work, we investigate the effect of NiO nanoparticles' addition on the structure, superconductivity, and magneto conductivity for the SmBa2Cu3O7-δ phase. Composite nano/superconductor of (NiO)x/SmBa2Cu3O7-δ (0.00≤x≤0.12 wt.%) were prepared by conventional solid-state reaction technique and characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The orthorhombic structure was maintained whereas the lattice parameters showed unsystematic variations with the NiO nanoparticles addition. The superconducting transition temperature Tc, determined from electrical resistivity measurements, showed an enhancement with x up to 0.04wt.% followed by a reduction with higher NiO additions. The Aslamazov–Larkin (AL) model was employed to analyze the magneto conductivity. The model allowed to determine the coherence lengths along c-axis ξc(0) and along ab plane ξab(0). Moreover, the anisotropy parameter Г increase with the increase of NiO nanoparticles addition.
Valoración de bienes y servicios ambientales del Bosque Protector Cerro Golondrinas en Carchi – Ecuador
Authors: Arellano Pérez Karol , Palacios Orejuela Iván
Published: December 2022

La importancia de un bosque protector radica en los múltiples bienes y servicios ambientales que brinda tanto al ser humano como al sistema ecológico en general. Sin embargo, estas áreas naturales se ven afectadas por presiones antrópicas que amenazan su conservación en el tiempo. El Bosque Protector Cerro Golondrinas es una de las pocas reservas naturales ubicada dentro de la región biogeográfica del Chocó ecuatoriano. El objetivo del estudio fue valorar económicamente los bienes y servicios ambientales, mediante la aplicación de los métodos precios de mercado y costo de oportunidad, para evidenciar el potencial cultural, natural, escénico, científico y social de este bosque. Se definieron siete servicios ambientales en función de sus aspectos ambientales y socioeconómicos: captura y almacenamiento de carbono, extracción de madera, provisión de agua de riego, provisión de agua para consumo humano, uso de suelo para producción de leche, preservación de la biodiversidad y turismo. La extracción de madera obtuvo el mayor valor con 12.496.011,81 USD, seguido de la captura y almacenamiento de carbono (11.198.586,26 USD), uso de suelo para producción de leche (2.096.884,85 USD), biodiversidad (251.472,04 USD), belleza escénica (3.173,1 USD), agua para riego (919,34 USD) y agua para consumo humano (44,03 USD), con un valor total de 26.047.091,43 USD, una cifra considerable que resalta la importancia de su conservación y protección.
Hemşirelik Öğrencilerinde Kaderciliğin Sağlığı Geliştirici ve Koruyucu Davranışlar ile İlişkisi
Authors: Akgül Esma , Taşkın Yılmaz Feride , Çolak Lütfiye , Kütük Hilal
Published: December 2022

Amaç: Bu araştırma, hemşirelik öğrencilerinde kaderciliğin sağlığı geliştirici ve koruyucu davranışlar ile ilişkisini incelemek amacıyla yapılmıştır.Yöntem: Tanımlayıcı ve ilişkisel olarak gerçekleştirilen çalışmaya bir üniversitede öğrenim gören 126 hemşirelik öğrencisi dâhil edilmiştir. Veriler öğrenci tanılama formu, Kadercilik Ölçeği ve Sağlığı Geliştirici ve Koruyucu Davranışlar Ölçeği kullanılarak elde edilmiştir. Verilerin istatistiksel değerlendirmesinde yüzdelik, ortalama, Spearman korelasyon analizi ve lineer regresyon analizi kullanılmıştır.Bulgular: Öğrencilerin Kadercilik Ölçeği genel ortalamasının (2,51±0,54), ön belirlenim alt boyut puan ortalamasının (2,68±0,60) ve karamsarlık alt boyut puan ortalamasının (2,58±0,77) ortalamaya yakın olduğu, bununla birlikte şans alt boyut puan ortalamasının ise (1,97±0,84) ortalamanın altında olduğu belirlendi. Öğrencilerin Sağlığı Geliştirici ve Koruyucu Davranışlar Ölçeği genel puan ortalaması ile (79,88±9,37), fiziksel (31,06±4,28), psikososyal (20,43±3,25) ve korunma (28,38±4,10) alt boyut puan ortalamalarının ortalamaya yakın olduğu tespit edildi. Öğrencilerin Kadercilik Ölçeği genel puan ortalaması ile Sağlığı Geliştirici ve Koruyucu Davranışlar Ölçeği genel puan ortalaması arasında negatif yönde zayıf düzeyde anlamlı farklılık olduğu bulundu (r=-0,356; p<0,01). Ayrıca kadercilik değişkeninin sağlığı geliştirici ve koruyucu davranışlar üzerinde anlamlı bir yordayıcı olduğu, kaderciliğin tek başına sağlığı geliştirici ve koruyucu davranışlar üzerinde toplam varyansın yaklaşık %13’ünü açıkladığı belirlendi (R=0,371; R2=0,130; F=19,733; p<0,01).Sonuç: Öğrenci hemşirelerin kadercilik ile sağlığı geliştirici ve koruyucu davranış düzeylerinin orta seviyede olduğu; kadercilik düzeyi arttıkça sağlığı geliştirici ve koruyucu davranış düzeylerinin azaldığı ve öğrencilerin kadercilik algılarının tek başına sağlığı geliştirici ve koruyucu davranışlar üzerinde önemli bir belirleyici olduğu tespit edilmiştir.
Hubungan Antara Kecanduan Bermain Game Online Dengan Motivasi Belajar Pada Siswa Sekolah Menengah Pertama
Authors: Makatita Fauzan
Published: December 2022

Game online semakin berkembang pesat seiring perkembangan teknologi telah banyak kita temui di lingkungan sekitar kita. Game online merupakan salah satu media hiburan yang mampu mempengaruhi suatu dinamika pendidikan dikarenakan sebagian besar peminat permainan yang kebanyakan dimainkan melalui komputer dan hp ini adalah para siswa sekolah. Dampak negative dan positif dari game menurut (Putra, n. K. 2017) yang mengungkapkan keseringan bermain game online akan mengakibatkan kecanduan yang mempengaruhi motivasi belajar siswa, Dampak positif y siswa bisa berkreatifitas melalui game online dan pengetahuan berbahasa inggris siswa bisa mengalami kemajuan. Jenis penelitian ini mengunakan metode literature dengan tinjauan literature menggunakan dua database Google scholar dan PUBMED. Berdasarkan hasil pencarian literature melalui publikasi di dua database dengan judul “Hubungan Antara Kecanduan Game Online Dengan Motivasi Belajar Pada Siswa Sekolah Menengah Pertama” Peneliti mendapatkan 686 jurnal yang mana 423 dari google scholar dan 263 dari pubmed kemudin di scrining sehingga terdapat 14 jurnal yang akan di pakai dalam penelitian literature review
Teachers and Students' Perceptions of Using Digital Games in Improving Vocabulary at Non-English-majored Class
Authors: Trinh Thi Hang , Nguyen Minh Ngoc , Tran Thi Thanh Huong
Published: December 2022

The use of gamification in education is of increasing interest. Numerous studies have explored various aspects of integrating digital games (DGs) into English language teaching and learning. This research sought to investigate teachers' and students' perceptions of incorporating DGs in improving vocabulary for non-English-majored students at Phenikaa University, Vietnam. This cross-sectional study was completed with a structured survey of 30 lecturers and 150 students, alongside in-depth interviews with some randomly-selected respondents from both groups. The findings revealed that these two groups of participants mostly shared positive attitudes toward DGs. The teachers were aware of the importance of DGs as a modern and appealing approach to teaching vocabulary; however, they were reluctant to use them frequently because of time constraints, distractions, and technological complexity. With regard to the students, most of them believe in the effectiveness of digital games as learners. However, they reflected that occasional class gaming-learning could be a more appropriate schedule. Contents that digital games can help most effectively with learning English tend to focus more on some aspects of vocabulary. The findings are of great value in giving educators and students a profound understanding of both the positive and negative impacts of using DGs to facilitate learners' vocabulary learning.
CRIMINAL-LEGAL PROTECTION OF ROBOTICS: NOTION AND CONTENT
Authors:   Institute of Digital Technologies and Law, Department of Criminal Lawand Procedure,  Kazan  Innovative  University, Begishev Ildar
Published: December 2022

Robotic devices are more and more often used when committing crimes. Further, this trend will grow, which will significantly increase the inflicting potential of socially dangerous infringements and the harm from their commitment. Ittestifies to the necessity of an objectively formulated and relevant request for elaboration of modern approaches to criminal-legal protection of public relations associated with robotics. Such protection includes a complex of measures and ensures security of handling robots, from the moment of their creation till the moment of utilization.The work makes an attempt to elaborate the notion of criminal-legal protection of robotics and to define its content. We propose to interpret criminal-legal protection of robotics as an interconnected system of provisions shaping the criminal-legal policy in the sphere of development, production,and application of robots, as well as the liability for socially dangerous infringements committed with the use of robots and in relation to robots.
Ảnh hưởng của độ dày lên tính chất màng mỏng InSb chế tạo bằng phương pháp lắng đọng laser xung trên đế Silic
Authors: Pham Van Thin , Do Thi Phuong Dung , Nguyen Vu Tung , Tran Quang Dat , Nguyen Thanh Nam , NGUYEN VAN Tuan
Published: December 2022

Vật liệu InSb hứa hẹn được ứng dụng rộng rãi trong các nhiệm vụ dân sự và đến quân sự, từ lĩnh vực từ học cho đến quang học. Bài báo này trình bày kết quả chế tạo và khảo sát xác định hình thái cấu trúc cùng một số thuộc tính của màng mỏng InSb khi độ dày thay đổi. Các màng mỏng InSb được chế tạo bằng phương pháp lắng đọng laser xung (PLD) ở nhiệt độ 300 °C có độ dày thay đổi trong khoảng 150 nm - 2000 nm. Phép phân tích cấu trúc tinh thể (XRD) cho thấy màng mỏng kết tinh tốt ở tất cả các độ dày. Phép đo hiển vi lực nguyên tử (AFM) quan sát thấy sự tăng độ dày màng mỏng dẫn tới kích thước hạt tinh thể tăng lên (18 nm - 33 nm) và các hạt vi mô bao gồm nhiều hạt tinh thể. Ở độ dày màng mỏng < 500 nm, màng có độ nhám căn quân phương thấp (3 nm), và độ nhám này tăng lên (15 nm) khi độ dày màng ≥ 500 nm. Ảnh hiển vi điện tử quét (SEM) cho thấy tất cả các màng có cấu trúc liên tục, xếp chặt. Kết quả về cấu trúc tinh thể, hình thái vi mô được liên hệ để giải thích sự biến đổi tính chất quang của màng mỏng được chế tạo thông qua phép đo quang phổ hồng ngoại biến đổi Fourier (FTIR).
Cấu trúc và tính chất từ trong các màng đa lớp nano antidots [Co/Pd] với dị hướng từ vuông góc
Authors: Giap Van Cuong , Chu Van Thanh , Do Khanh Tung , Nguyen Thanh Huong , Do Hung Manh , Tran Dang Thanh , Nguyen Thi Ngoc Anh
Published: December 2022

Các màng mỏng đa lớp [Co/Pd] có cấu trúc antidots phún xạ trên các đế xốp nano Al2O3 và TiO2 với kích thước lỗ xốp 30 nm và 50 nm được chế tạo bằng phương pháp phún xạ DC magnetron. Ảnh hưởng của hình thái bề mặt lên đặc trưng cấu trúc và tính chất từ trong các màng đa lớp đã chế tạo được khảo sát một cách kỹ lưỡng. Kết quả nghiên cứu chỉ ra rằng, tương tự như trong các màng phẳng [Co/Pd], các màng xốp cũng có dị hướng từ vuông góc lớn ở nhiệt độ phòng. Tuy nhiên, lực kháng từ HC trong các màng xốp có sự tăng cường đáng kể so với các màng phẳng, HC lớn nhất đạt được là 2220 Oe với mẫu màng xốp TiO2-[Co/Pd], lần lượt cao gấp 1,28 và 3,15 lần so với màng Al2O3-[Co/Pd] và màng phẳng SiO2-[Co/Pd], là do sự hình thành pha từ mềm tại gờ các lỗ xốp. Có thể nói tính chất từ trong các màng xốp hoàn toàn có thể được điều biến thông qua việc điều chỉnh các thông số cấu trúc của đế xốp như kích thước lỗ xốp và độ nhám bề mặt.
Tổng hợp vật liệu nano TiO2 ứng dụng để phân hủy chất mô phỏng chất độc thần kinh DMNP
Authors: Bùi Trung Thành  , Đặng Thanh Bình  , Lê Văn Dũng  , Nguyễn Xuân Toàn  , Lại Văn Cương  , Nguyễn Bá Mạnh
Published: December 2022

Vật liệu nano TiO2 được tổng hợp thành công bằng phương pháp gel sol. Vật liệu nano TiO2 được đặc trưng phương phán nhiệu xạ tia X (XRD), kính hiển vi điện tử quét (SEM), hấp phụ-giải hấp N2 và UV-Vis DRS. Ảnh SEM của các mẫu TiO2 có kích thước hạt nano 20–30 nm và diện tích bề mặt riêng cao 139 m2.g-1. Các vật liệu nano TiO2 được sử dụng để phân hủy chất mô phỏng tác nhân chiến tranh hóa học dimethyl 4-nitrophenyl phosphate (DMNP). Vật liệu nano TiO2 thể hiện hiệu suất xúc tác cao đối với sự phân hủy DMNP và độ chuyển hóa đạt 96,14%, sau 120 phút phản ứng. Chất xúc tác quang TiO2 thực hiện đồng thời ba quá trình như hấp phụ, thủy phân và xúc tác quang, do đó hiệu quả xử lý DMNP được nâng cao đáng kể. Hiệu suất loại bỏ DMNP của xúc tác TiO2 đạt trên 90% sau 4 chu kỳ phản ứng.
Khảo sát các thông số môi trường và tốc độ ăn mòn kim loại trong môi trường khí quyển tại Phan Thiết
Authors: Nguyễn Văn Sơn , Phạm Hồng Thạch  , Phạm Thanh Hải  , Nguyễn Trọng Cường
Published: December 2022

Bài báo trình bày kết quả xác định tốc độ sa lắng clorua, sa lắng SO2, các thông số về nhiệt độ, độ ẩm và tốc độ ăn mòn thép cacbon, đồng, nhôm, kẽm ở khu vực ngoài trời và trong kho của đơn vị X đóng quân trên địa bàn TP. Phan Thiết. Kết quả cho thấy tốc độ sa lắng clorua và SO2 ở khu vực ngoài trời và trong kho đều khá thấp. Tuy nhiên, thời gian lưu ẩm ở hai vị trí có sự khác nhau rõ rệt, đồng thời tốc độ ăn mòn kim loại cũng có nhiều khác biệt. Trên cơ sở số liệu thu được, có thể phân loại hoạt tính ăn mòn khí quyển của Phan Thiết theo tiêu chuẩn ISO 9223:2012. Theo tiêu chuẩn này, môi trường khí quyển Phan Thiết khu vực ngoài trời xếp vào nhóm S1 về sa lắng clorua, nhóm P1 về sa lắng SO2, nhóm T4 về thời gian lưu ẩm. Dựa theo tiêu chuẩn 9226:2012 phân loại nhóm C3 về tốc độ ăn mòn thép, nhóm C5 về tốc độ ăn mòn đồng, nhóm C4 về tốc độ ăn mòn nhôm, nhóm C3 về tốc độ ăn mòn kẽm.
A method for constructing public-key block cipher schemes based on elliptic curves
Authors: Luu Hong Dung
Published: December 2022

The article proposes a method for constructing public-key block cipher schemes based on the difficulty of the discrete logarithm problem on elliptic curves. The schemas are construc according to the proposed method and can simultaneously perform security functions and authenticate the origin and integrity of the encrypted message. In addition, a shared secret key is established between the sender/encryptor and the receiver/decryptor for each encrypted message based on public key cryptography which also improves the security of these cipher schemes.
Asymptotic stability of dynamical systems with Barbalat’s lemma and Lyapunov function
Authors: Vu Quoc Dr Huy
Published: December 2022

The article explains Barbalat’s lemma, combining the application of Barbalat’s lemma, the Lyapunov function, and the theorem Lagrange to ensure mathematical certainty in analyzing the asymptotic stability of a non-autonomous control system. Research results are illustrated and simulated with visual examples of uncontrolled and controlled dynamical systems.
The method to determine position in 3D digital sand table
Authors: Mac Van Vien
Published: December 2022

This paper proposes a method to determine the working position in the 3D digital sand table. Starting from analyzing the actual business of the 3D digital sand table to propose the operation cases and build the algorithm to determine the position for each of those cases. Then, the presentation of the application of that method to specific functions of the GlobeDesktop system. Finally, the paper presents experimental content to evaluate the method.
Polyp segmentation on colonoscopy image using improved Unet and transfer learning
Authors: Le Thi Thu Hong  , Nguyen Sinh Huy  , Nguyen Duc Hanh  , Trinh Tien Luong  , Ngo Duy Do  , Le Huu Nhuong  , Le Anh Dung
Published: December 2022

Colorectal cancer is among the most common malignancies and can develop from high-risk colon polyps. Colonoscopy remains the gold-standard investigation for colorectal cancer screening. The procedure could benefit greatly from using AI models for automatic polyp segmentation, which provide valuable insights for improving colon polyp dection. Additionally, it will support gastroenterologists during image analysation to correctly choose the treatment with less time. In this paper, the framework of polyp image segmentation is developed by a deep learning approach, especially a convolutional neural network. The proposed framework is based on improved Unet architecture to obtain the segmented polyp image. We also propose to use the transfer learning method to transfer the knowledge learned from the ImageNet general image dataset to the endoscopic image field. This framework used the Kvasir-SEG database, which contains 1000 GI polyp images and corresponding segmentation masks according to annotation by medical experts. The results confirmed that our proposed method outperform the state-of-the-art polyp segmentation methods with 94.79% dice, 90.08% IOU, 98.68% recall, and 92.07% precision.
A new construction method of digital signature scheme based on the discrete logarithm combining find root problem on the finite field F_p
Authors: Nguyen Kim Tuan  , Nguyen Vinh Thai  , Luu Hong Dung
Published: December 2022

The article proposes a method to build a signature scheme based on a new hard problem, called the logarithm problem with roots on the finite field . Now, this is a hard problem belonging to the class of unsolvable problems, except for the “brute force” method. Therefore, building a digital signature scheme based on the difficulty of this problem will most likely allow improving the security of the digital signature algorithm according to the proposed new method. In addition, the method of building signature schema here can be applied to develop a class of signature algorithms suitable for applications with high requirements for security in practice applications.
Điều khiển phi mô hình hướng dữ liệu MFC-iPID cho một lớp hệ cơ điện
Authors: Nguyễn Văn Đức  , Nguyễn Quang Hùng  , Vũ Quốc TS Huy
Published: December 2022

Bài báo phân tích và tổng hợp một luật điều khiển thông minh dựa trên kỹ thuật điều khiển phi mô hình hướng dữ liệu, ứng dụng cho một lớp hệ cơ điện servo. Điều khiển phi mô hình MFC (Model-Free Control) sử dụng một mô hình siêu cục bộ, kết hợp với điều khiển PID tạo thành bộ điều khiển thông minh MFC-iPID, được đảm bảo toán học chặt chẽ trên cơ sở ổn định Lyapunov và nguyên lý tách. Mô phỏng trong Matlab thể hiện trực quan kết quả nghiên cứu.
Hấp phụ amoni trong nước thải bằng zeolite A tổng hợp từ tro bay than
Authors: Lê Văn Tâm , Dương Công Thịnh , Nguyễn Thành Trí , Nguyễn Thị Xuân Hồng , Phạm Hồng Nhật
Published: December 2022

Tro bay loại F từ nhà máy nhiệt điện Duyên Hải ở Việt Nam được sử dụng để tổng hợp zeolite A nhằm hấp phụ amoni trong nước thải. Zeolite A có cấu trúc hình khối được tổng hợp từ tro bay than bằng phương pháp thủy nhiệt với sự hỗ trợ của sóng siêu âm. Vật liệu này được phân tích đặc trưng bởi XRD, SEM để nghiên cứu về hình thái và tinh thể. Tính chất hấp phụ của ion amoni (NH4+) từ môi trường nước lên zeolite A được khảo sát dưới dạng hàm của các thông số như thời gian cân bằng, nồng độ NH4+ ban đầu, lượng zeolite được sử dụng. Zeolite A tổng hợp được cho thấy tốc độ hấp phụ nhanh và dung lượng hấp phụ cao, cho thấy đây là vật liệu tiềm năng để xử lý các chất ô nhiễm NH4+ từ nước thải, đặc biệt ở các giai đoạn xử lý nâng cao amoni. Nghiên cứu cho thấy quá trình hấp phụ tuân theo đồng thời đường đẳng nhiệt hấp phụ Langmuir và Freundlich.
Khảo sát các thông số thủy lý hóa, mức độ hà bám và tốc độ ăn mòn kim loại trong nước biển khu vực Long Sơn tỉnh Bà Rịa – Vũng Tàu
Authors: Phạm Hồng Thạch , Nguyễn Văn Sơn , Phạm Thanh Hải , Nguyễn Trọng Cường , Trần Phương Chiến , Nguyễn Văn Dũng , Lê Thị Thùy Nguyên , Lâm Ngọc Nam
Published: December 2022

Bài báo trình bày kết quả xác định các thông số thủy lý hóa, mức độ hà bám và tốc độ ăn mòn của thép, đồng, nhôm, kẽm ở dưới nước khu vực cầu cảng của Lữ đoàn M/Bộ Tư lệnh (BTL) Vùng 2 Hải quân đóng quân trên địa bàn xã đảo Long Sơn, Thành phố Vũng Tàu, tỉnh Bà Rịa - Vũng Tàu. Kết quả xác định các thông số thủy hóa lý: độ muối 18,4 ppt, pH = 6,9, nhiệt độ 29,2 °C, độ dẫn điện 30,6 mS/cm, TDS 15,5 g/L; mức độ hà bám cho thấy mẫu nhôm có mức độ cao nhất và có cả tảo biển bám, mẫu thép mật độ hà bám cũng rất cao, mẫu kẽm và đồng có mật độ hà bám thấp. Kết quả tốc độ ăn mòn cho thấy thép 218 ± 8,72 μm/năm, đồng 93 ± 4,46 μm/năm, kẽm 79 ± 3,16 μm/năm, nhôm 9 ± 0,42 μm/năm. Đặc biệt mẫu đồng có xuất hiện ăn mòn cục bộ nghiêm trọng ở biên các cạnh mẫu sau khi ngâm trong nước biển.
Correlation of Pulmonary Embolism with D-dimer Level and Determination of Cut-off Values According to Age
Authors: VURAL Nafis , ÇETE Yıldıray , DUYAN Murat
Published: December 2022

Aim: This study was conducted to determine the D-dimer threshold levels according to age in patients diagnosed with pulmonary embolism (PE) by pulmonary computed tomography (CT) angiography. Material and Methods: Patients who had pulmonary CT angiography performed and whose D-dimer test was obtained with the suspicion of pulmonary embolism (PE) in the emergency department of a tertiary university hospital between January 01, 2015, and December 30, 2019, were included in the study. The demographic characteristics of the patients, imaging reports, and 1-month mortality were evaluated retrospectively by examining the hospital information management system and patient files. Patients with missing records and patients who had diagnostic examinations other than the preliminary diagnosis of PE were excluded from the study. Results: Among the 6240 patients included in the study, 58.1% were female. The mean age of the patients was 43±17 years. Of the 1,507 patients who had a pulmonary CT angiogram, 9.8% were diagnosed with PE. When we looked at the 1-month mortality of 6240 patients, whose D-dimer assay was analyzed with the preliminary diagnosis of PE, we found that 0.3% of patients died. The monthly mortality rate was 0.7% in patients with high D-dimer levels while the mortality rate in patients with normal D-dimer levels was 0.1%. A positive and statistically significant correlation was found between the location of the pulmonary embolism in pulmonary CT angiography and the D-dimer level (spearman’s rho= 0.251, p<0.001). The cut-off D-dimer value in predicting the presence of PE in all age groups was calculated as 1.34 mg/L. The cut-off values of D-dimer to predict the presence of PE according to age ranges was calculated as 1.18 mg/L (<50 years), 1.19 mg/L (50-60 years), 1.58 mg/L (60-70 years) 1.79 mg/L (70-80 years), 2.83 mg/L (>80 years) respectively. Conclusion: As age increases, the D-dimer cut-off value for the diagnosis of PE also increases. There is a positive and significant relationship between D-dimer level and pulmonary embolism severity.
Numerical and Experimental Evaluation of Natural Frequencies of a Marine Propeller
Authors:   Dept. of Mechanical Engineering, UVCE, Bengaluru, Raj E Mohan
Published: December 2022

A propeller is a mechanical element in which blades convert rotational motion into thrust to move the marine vehicle through a transmission system. In the present study, modal analysis was performed to determine the natural frequencies of aft and forward marine propellers using ANSYS Workbench. A comparison was made between the data obtained from the numerical and experimental methods. The aft and forward propellers were tested for extracting natural frequencies using the FRF method. The propeller was attached to a stand in free-free constraint condition. The modal testing was performed using an impact hammer and accelerometer on the propeller to validate the results of the FEA method. The natural frequencies of aft and forward propellers were compared for both methods and a good correlation was found. Key Words: propeller, modal analysis, vibration, natural frequency, validation.
Açık Hava Rekreasyonel Aktivitelerinin Kırsal Turizme Etkisi
Authors: GARİPAĞAOĞLU UĞUR Nihan , AKOVA Orhan
Published: December 2022

Çalışma açık hava rekreasyonel aktiviteleri içerisinde yer alan ekstrem sporların doğaya ve kırsal turizm alanlarına etkisini incelemek amacıyla yapılmıştır.

Kırsal turizm insanların şehrin gürültüsünden kaçarak, kısa ve uzun süreli zaman geçirdikleri alternatif bir turizm türüdür. Kırsal turizm destinasyonlarında, rekreasyonel aktivitelere katılımlar olmaktadır. Bu aktiviteler yürüyüş, yeme – içme, yörenin kültürünü tanıma, kamp yapma ve ekstrem sporları vb içerebilmektedir. Doğal alanlarda yapılan sporlar, açık hava rekreasyonu olarak ifade edilmektedir.

Kırsal turizmin pek çok çeşidi olmasına rağmen bu çalışmada açık hava rekreasyonel aktiviteleri içerisinde yer alan ekstrem sporlar ve bu sporların doğaya etkileri incelenmiştir. Literatür taranarak, rekreasyonel ekstrem spor aktiviteleri ve kırsal turizme etkileri araştırılmıştır.

İnceleme sonucunda rekreasyonel aktivitelerin kırsal turizm destinasyonlarında ekonomik fayda sağladığı, istihdamı arttırdığı belirlenmiştir. Ekstrem spor yapanların doğa ile bütünleştiği, doğaya değer verdiği tespit edilmiştir. Bununla birlikte kullanılan ekipmanların, geride bırakılan atıkların ve suya karışan sabun gibi kimyasalların kirliliğe neden olduğu görülmüştür.

Çalışma betimsel olup, ikincil verilere dayandırılmaktadır. Türkiye’de yapılan açık hava rekreasyonel aktiviteleri içerisinde yer alan ekstrem sporların, kırsal turizm destinasyonlarına etkisine dikkat çekmesi sebebiyle literatüre katkı sağlamaktadır.
INHERITANCE RIGHT OF ORPHANED GRAND CHILDREN: BANGLADESH PERSPECTIVES
Authors: Mostofa Md , Tasnim Kazi Sonia , Islam Md. Zahidul
Published: December 2022

The dilemma of inheritance of grandchildren from the pre-deceased child is one of the most critical areas of Islamic law. According to the classical interpretations of Islamic law, any son of the deceased in general excludes such grandchildren. However, many states brought certain changes into the existing format of Islamic law of succession so as to shield such grandchildren from total exclusion. Egypt, Tunisia, Syria, Morocco, Pakistan and Bangladesh are remarkable for binging changes in this particular area. Pakistan brought a significant change in 1961 by section 4 of the Muslim Family Laws Ordinance (MFLO), which is a milestone event in the history of reformation of Islamic law. In Bangladesh the same law become accepted through the promulgation of the Laws Continuance Enforcement order, 1971’.Section of the MFLO affected the whole structure of Islamic Law of Succession. The main contribution of this work is an attempt to draw the attention of the proper authority for taking steps to ensure the right of orphaned grandchildren and other heirs not violating the Islamic law of succession. For this purpose the author tries to show the injustices to some heirs and the provisions of Islamic law of succession which have been violated caused by the section 4 of MFLO and lastly the author has set up a method that ensures the right of the orphaned grandchildren neither violating the Islamic rule nor excluding any heir. It is a qualitative research.
An Analysis of Narrative Art in Liu Cixin’s Science Fiction
Authors: Li Xuening
Published: December 2022

The Three-Body Trilogy is Liu Cixin’s masterpiece. Since its publication, it has gained widespread attention from both domestic and international literary circles and science fiction enthusiasts, attracting a large number of scholars to study it from various angles. The novel presents a unique narrative art in its narrative language and structural arrangement, and its narrative style demonstrates Liu Cixin’s superb narrative skills. Using the trilogy as a specific study text and applying theories related to narratology, this article analyses the narrative art of the novel from two aspects, language and mode, and discusses the unprecedented aesthetic experience it brings to readers.
Inquiry and Imagination in Adjudication
Authors: van Domselaar Iris
Published: December 2022

Inquiry and Imagination in Adjudication. The Case of Digitalisation

This comment situates the ideal of adjudication that Del Mar develops in Artefacts of Legal Inquiry within the reality of justice systems being in a ‘sorry state’; courts are generally considered too slow, too expensive and too complicated to provide meaningful access to justice to all citizens.

In reaction to this justice gap, one development that is hailed by the access to justice movement is digitalisation. The use of legal technology is promoted for its promise to deliver cheaper, faster, and better justice.

As Del Mar’s ideal of adjudication emphasises the value of embodied, collective, imaginative, text-based practices of inquiry among judges and other legal professionals involved, this comment also addresses the question to what extent digitalisation poses a threat to this ideal.

Rather than offering a clear-cut answer, this comment is meant as an encouragement to Del Mar and other legal theorists to take heed of the justice gap and digitalisation in the justice system as part and parcel of their theories about adjudication.
ORGANIZATIONAL AND ECONOMIC SUPPORT OF TOURISM AND HOTEL ENTERPRISES ACTIVITIES
Authors: Pysareva Iryna , Ryabev Аnton , Tonkoshkur Maksym , Kolontaievskyi Oleg , Pokolodna Mariya
Published: December 2022

In the article, organizational and economic support of tourism and hotel enterprises activities has been developed based on the construction of an effective mechanism capable of solving problems of an institutional, organizational and economic nature. The authors have found out that the development of tourism has a huge impact on the socio-economic state of the country and the level of the quality of life of the population, therefore the formation of organizational and economic support for the activities of tourism and hotel enterprises is of primary importance since the tourism industry is an interdisciplinary complex that is part of the tourism sphere and unites various types of economic activity from material production to the non-material sphere, which are the material basis of tourism, the basis for personnel training, production management organization, and tourism product sales. It has been stressed that tourism enterprises are business entities of a specific nature, which have certain features both from the point of view of production organization and their socio-economic efficiency.It has been found out that hospitality enterprises must form and implement existing service strategies in order to meet specific and rapidly changing needs of the market in which they have chosen a certain segment for themselves since, in conditions of a high level of bankruptcies, only those business entities that are able to think strategically and adapt to changes in the external environment can achieve success.An integrated approach to the formation and implementation of state policy in the field of tourism and hotel management is proposed. The functional relationship of the totality of the main factors that determine the state of the financial and economic activity of tourism and hotel enterprises is determined. It is indicated that the economic efficiency of the activities of tourism and hotel industry enterprises is achieved through a balanced personnel management system. A model for monitoring the development of personnel is suggested. The use of this model allows for controlling and managing the course of the process. It has been concluded that today when doing business in the field of tourism, it is necessary to clearly take into account external and internal factors influencing the activities of economic entities and improve the personnel management system since the level of satisfaction of consumers of tourism and hotel services depends on the personnel's professional abilities.
УПРАВЛІННЯ ESG-РИЗИКАМИ В УКРАЇНСЬКИХ БАНКАХ
Authors: Бортніков Геннадій , Любіч Олександр
Published: December 2022

Метою дослідження є структурний аналіз ризиків стійкості за компонентами з урахуванням специфіки банківського бізнесу. Основними результатами дослідження є впорядкування підходів до систематики екологічних, соціальних та управлінських ризиків, пропозиції щодо створення додаткового механізму управління такими ризиками, визначення ключової ролі контролюючого органу в стимулюванні банків до трансформації. Українські банки все ще перебувають на початку шляху до повноцінної бізнес-моделі, заснованої на принципах сталого фінансування. Культура ризик-менеджменту вимагає уніфікації та вільної передачі досвіду між банками й нагляду в поширенні передового досвіду. Немає необхідності створювати нову організаційну структуру всередині банку, але досить збагатити всі три лінії захисту від ризиків новими функціями й обов'язками. Сьогодні банківською спільнотою, регуляторами та аналітиками занадто багато уваги приділяється кліматичним ризикам. Найменш розвиненою з точки зору методології залишається складова корпоративного управління, унаслідок чого вона сприймається як штучно прив'язана до екологічних і соціальних аспектів.Інтеграція ESG у стратегії банків та інвестиційну політику означає пропонування ринків продуктів, пов'язаних із ESG (стійкі, зелені та соціальні облігації, зелене проєктне фінансування тощо). Існує небезпека виведення боргового капіталу з галузей, які визнані «брудними», але де власники бізнесу намагаються реально їх очистити, модернізуючи технології. Тому практичним рішенням для сучасного банку є не просто відмова від фінансування певних галузей економіки, а більшою мірою переорієнтація на проєкти, які передбачають енергозбереження та енергоефективність, скорочення викидів парникових газів в атмосферу, зниження споживання води й інших ресурсів.
THE IMPORTANCE OF OPENNESS AND TRANSPARENCY IN THE BUDGET PROCESS IN THE DEFENSE AND SECURITY SECTOR OF UKRAINE
Authors: Lyutiy Igor , Petlenko Yuliia , Drozd Nataliia
Published: December 2022

The purpose of this paper is to describe and analyze the issues of openness and transparency of the budgeting process in the defense and security sector in Ukraine, which results in effective spending of budgets.After Russia started a full-scale war against Ukraine, the international community is providing Ukraine with numerous financial support packages and ammunition. Therefore, one of the most important issues is strengthening the democratic control over the budget process in the defense and security sector of Ukraine, taking into account the new principles of information openness and its classification as a state secret. Here, the need to develop standards for transparent budgeting and the introduction of an open indicative system for monitoring and evaluating the budget process in the defense and security sector is particularly relevant.The article provides an empirical description, uses data obtained from expert discussions and multidimensional evaluation approaches on openness and transparency of the budget process in the defense and security sector to enhance the effectiveness of military budget spending.The paper develops conceptual approaches to ensuring the efficient use of budgetary resources in the defense and security sector by generalizing the practical implementation of the open and transparent budgeting principles, development of effective mechanisms for budget oversight, and compliance with standards of public accountability.The paper focuses on the need for the implementation of budget transparency standards referring to the priorities of the Military Security Strategy of Ukraine with particular attention to the issues of openness and transparency of financial reporting at budgetary institutions. The study proves the prospects for the introduction of transparent budgeting standards in the defense and security sector, which is a fundamentally new approach able to strengthen corruption prevention and, in combination with other hybrid defense tactics, the military provision.The study is performed under the project “Openness and transparency of budgeting in the defense and security sector of Ukraine”, supported by the Ministry of Education and Science of Ukraine.
БЮДЖЕТНА БЕЗПЕКА ЯК ДИНАМІЧНА ДЕТЕРМІНАНТА СОЦІАЛЬНО-ЕКОНОМІЧНОГО РОЗВИТКУ УКРАЇНИ
Authors: Свірко Світлана , Дикий Анатолій , Дика Олена , Тростенюк Тетяна
Published: December 2022

Метою статті є дослідження напрацювань забезпечення бюджетної безпеки в контексті її факторного впливу на соціально-економічний розвиток країни, визначення сучасного стану та перспектив удосконалення методики оцінювання бюджетної безпеки. Ґрунтуючись на дослідженні стратегічних планів соціально-економічного розвитку через опрацювання положень Національної економічній стратегії на період до 2030 року та Стратегії людського розвитку, доведено залежність успішності реалізації стратегічних та оперативних цілей соціально-економічного розвитку країни від рівня бюджетної безпеки. У процесі дослідження сучасного стану бюджетної безпеки проаналізовано показники виконання Державного бюджету України та його дефіциту, ВВП України, загального дефіциту сектора державного управління, виконання зведеного бюджету України, сукупності платежів щодо обслуговування та погашення державного боргу за 2021 рік. На їх підставі визначено нормативно закріплені індикатори бюджетної безпеки за вищевказаний період, аналіз яких з урахуванням проведеного раніше системного дослідження одного зі співавторів цієї статті за період 2010-2021 рр. засвідчив надзвичайно низький рівень бюджетної безпеки країни. Із метою вдосконалення методики оцінювання бюджетної безпеки досліджено підходи різних науковців, що дозволило мотивувати необхідність уточнення першого з нормативно закріплених індикаторів (оновлений: частка дефіциту/профіциту зведеного бюджету до ВВП) та розширити існуючу нормативну систему індикаторів бюджетної безпеки шляхом доповнення її такими показниками: рівень тінізації доходів зведеного бюджету, рівень виконання дохідної частини зведеного бюджету; рівень виконання видаткової частини зведеного бюджету. На подальший розвиток існуючої нормативно закріпленої методики оцінювання бюджетної безпеки сформовано граничні значення перерахованих показників, а також оновлено вагові коефіцієнти щодо всієї сукупності індикаторів задля обрахунку кінцевого показника бюджетної безпеки в складі фінансової безпеки, а отже, і економічної безпеки країни. Реалізація на практиці запропонованих новацій щодо оцінювання рівня бюджетної безпеки сприятиме підвищенню вірогідності її показників, вчасному реагуванню на загрозливі зміни рівня бюджетної безпеки, а отже, підвищить рівень управління нею. Це, у свою чергу, уможливить безперебійність фінансового забезпечення реалізації цілей і завдань соціально-економічного розвитку нашої країни.
CHANGES IN UKRAINIAN BANKS ‘BUSINESS MODELS IN TIMES OF MILITARY CRISIS
Authors: Zarutska Оlena , Ponomarоva Oksana , Pavlov Roman , Pavlova Tetiana , Levkovich Oksana
Published: December 2022

The article analyzes changes in the business models of Ukrainian banks using the author's method of structural and functional groups of banks (SFGB). The method’s basis is the processing, systematization, and visualization of the system’s values of banks’ financial indicators using Kohonen’s self-organizing map (SOM). Depending on the level distribution of a large number of indicators that characterize the structure of assets, liabilities, income, expenses, and other qualitative indicators that describe the business models of each bank on successive reporting dates, homogeneous groups of banks are formed. The purpose of this study is to compare the key features of the banking system as of January 1 and September 1, 2022, and the corresponding changes in business models.Over the eight months of 2022, the number of banks with corporate lending increased slightly, but the resource base of these banks gradually changed. The number of banks with retail financing decreased at the expense of banks with current resources. During an increase in the discount rate and in the price of refinancing loans, banks’ business model that attracts resources on the interbank market and places them in securities has shrunk. At the same time, the number of banks with an increased level of securities in assets and corporate financing increased. The quality of the portfolio indicates the increased credit risks of the respective large state banks.The drawback of the proposed method is the dependence of conclusions on official banks 'statements that do not always reflect nuisances of financial position. Within small banks, we can sometimes observe that current changes in clients' account balances affect the position in SFGB. The SFGB method can be applied to analyze trends and estimate the probability of subsequent structural changes. For each bank, one can observe the trajectory change on the map and investigate the reasons for the change in business strategy.
MACROECONOMIC ANALYSIS AND FORECASTING OF FOREIGN DIRECT INVESTMENT INFLOW: EVIDENCE FROM UKRAINE
Authors: Dmytrenko Alla , Furmanchuk Oksana , Kravchenko Olena , Karpenko Yevgeniya , Koba Olena , Aiyedogbon John O.
Published: December 2022

Attracting foreign investment is a viable means of ensuring the economic growth of any country. The relevance of the study is substantiated by the creation of a favorable investment climate in the country, which will allow the establishment of guarantees of protection of foreign investments and stability of the legal basis for entrepreneurship performance. The article aims to analyze and forecast the inflow of foreign direct investment (FDI) into Ukraine. In order to achieve the stated purpose, the econometric model was developed, which demonstrates the correlation between macroeconomic indicators, their characteristics and the amount of FDI. A set of general scientific and special research methods were used, in particular: induction and deduction, grouping, summarization, comparison, complex and systemic approaches. The article reveals the essence of foreign investment for the Ukrainian economy and defines the characteristics of FDI. The impact of FDI on the economy of Ukraine is analyzed in detail and the conditions for their attraction are substantiated. Using statistical methods, the structure and dynamics of FDI by types of economic activity and investor countries are investigated. The conducted research has shown that through the attraction of foreign direct investment economic growth, the well-being of the population, the reduction of foreign indebtedness and efficient state capital investments are ensured. Taking all this into account the necessary preconditions for the attraction of foreign direct investments into the Ukrainian economy were substantiated.