bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALYSIS OF THE TRANSFORMATION OF BANKING SERVICES BY USING A REMOTE SERVICE SYSTEM
Authors:   Uzhhorod National University, Korol Maryna , Lapa Ihor ,   Uzhhorod National University, Fizeshi Yosyp ,   Uzhhorod National University
Published: September 2023

The article describes the essence of banking services using remote banking: Home-banking, Tele-banking, PC-banking, Internet banking, Mobile banking. It is stated that remote banking services first appeared in the United States of America. The remote banking services in Europe are analyzed. The volume of non-cash transactions in the world is estimated. The article analyzes how the use of services has changed before and during the COVID-19 crisis. A detailed analysis of the history of the introduction of remote banking services in China is provided. It can be noted that online transactions prevail in China, but the mobile industry is starting to become more and more popular. As the Internet and online services became more and more widespread, most of China's traditional banks felt the status quo and started to create platforms called Mobile Banking that offered a variety of traditional services in their applications. As one of the widespread services in China in these years, it synthesizes the current trend of mobile communication with the digitalization of money. It is concluded that in order to be competitive in the banking services market, banking institutions need to follow the development of modern information and telecommunication technologies, try to implement them and constantly improve customer service.
A Study on Accounting Information and Business Performance：Focusing on the Technology Acceptance Model(TAM)
Authors:   Korean Association Of Computers And Accounting, Song Kyoung－Jin , Rhee Kyong－Gu
Published: September 2023

[Purpose]The use of accounting information is important to improve performance through effective management strategies. Therefore, this study aims to identify the factors influencing the improvement of business performance by applying the technology acceptance model in the relationship between the characteristics of accounting information and business performance of a company.
[Methodology]Data were collected through a structured questionnaire with accounting information characteristics, business performance, and information acceptance intention as the main variables. The collected data were statistically analyzed using AMOS25 and SPSS25.
[Findings]Some of the hypotheses on the relationship between accounting information characteristics, information acceptance intention, and management performance showed a positive (＋) influence relationship.
[Implications]It provides meaningful discussion points through the results that the usefulness and ease of accounting information must be secured in order to improve management performance.
ESG Research Status Analysis Using Topic Modeling: Focused on Business Administration and Accounting
Authors:   Korean Association Of Computers And Accounting, Hwang Yu-Jeong , Oh Sang-Hui
Published: September 2023

[Purpose]The purpose of this study is to analyze the research trends of ESG research in Korea, focusing on the fields of business administration and accounting, using topic modeling.
[Methodology]This study focuses on the keyword ‘ESG’ published in domestic academic journals. To this end, as of June 30, 2023, a total of 404 studies of business administration and accounting studies calculated with ‘ESG’ as a search term in the Korea Citation Index are the subject of research. Specifically, morpheme analysis was performed using R, keyword frequency analysis was performed, and frequency analysis and Big-data analysis(data mining, topic modeling) were performed through the extracted keywords.
[Findings]As a result of this study, five topics were calculated. Specifically, Topic 1 is the role of the environment for management sustainability, Topic 2 is Implications for enhancing corporate value, Topic 3 is Strategy according to economic conditions, Topic 4 is Decision-making at the governance level, Topic 5 is Evaluation and utilization It is a responsibility.
[Implications]This study is different in that it analyzes research trends using the big data analysis method with the keyword ‘ESG’ limited to business administration and accounting among social sciences. In the meantime, many studies have been conducted in business administration and accounting, but there are not many studies that apply big data methods such as topic modeling. This study has significance in that it goes one step further from the existing research methodology, reduces the subjective opinions of researchers, and identifies macroscopic research trends based on a lot of data through the Big-data methodology.
The Impact of Social Responsibility Activities and Financial Ratio of Chinese Companies on Earning Management
Authors:   Korean Association Of Computers And Accounting, Kim Jung-Ho
Published: September 2023

[Purpose]This study aims to study how Chinese companies’ corporate social responsibility (CSR) activities and financial ratios affect earning management. In general, companies that perform corporate social responsibility (CSR) activities have an incentive not to earning management, and certain variables among financial ratio variables using corporate financial statements can be useful for managers’ earning management behavior.
[Methodology]Among Chinese listed companies, the impact of corporate social responsibility (CSR) activities and financial ratios on earning management from 2016 to 2020 was empirically analyzed for A shares of the Shenzhen Exchange.
[Findings]As a result of empirical analysis, it was verified that financial ratio indicators that have a significant impact on earning management include growth ratio, profitability ratio, liquidity and stability ratio, and activity ratio.
[Implications]According to these financial ratio variables, it is believed that earning management can be controlled in advance by utilizing financial ratio variables that affect profit adjustment and social responsibility activities.
The Effect of the Corporate Life Cycle on Corporate Profit Adjustment and Tax Avoidance
Authors:   Korean Association Of Computers And Accounting, Lee Seung-Mi
Published: September 2023

[Purpose]Since the business environment is different depending on the life cycle of the company, we will establish an appropriate management strategy, so the incentives for profit adjustment will vary step by step. Accordingly, the method of profit adjustment will be different depending on the corporate life cycle.
[Methodology]Using Dickinson’s (2011) method, companies were classified by life cycle, discretionary accrual profit adjustment was measured through the modified Jones model, and profit adjustment through tax avoidance was measured through Desai and Dharmapala (2006).
[Findings]In the introduction, culling, and declining stages, companies adjusted discretionary accruals in the positive (＋) direction, and in the negative (-) direction in the maturity period. It was found that companies adjusted profits to increase profits during the introduction, culling, and declining stages, and adjusted profits to reduce profits during maturity. In addition, tax avoidance showed a positive (＋) result during the maturity period, which is interpreted as companies in the maturity period attempting to adjust profits through tax avoidance.
[Implications]Companies can establish management strategies that choose different profit adjustment methods according to their life cycle.
ESG Disclosure Quality and Firm Value: Focused on Managerial Characteristics
Authors:   Korean Association Of Computers And Accounting, Baek Mi-Kyoung , Kim Hwak-Yeol
Published: September 2023

[Purpose]This study aims to examine the effect of the quality of Environmental, Social, and Governance (ESG) report disclosures on the capital market by reducing information asymmetry.
[Methodology]Regression analysis including 2SLS analysis was conducted for 326 (company-year) observations of 55 companies that continuously disclosed ESG reports from 2016 to 2021.
[Findings]The results are as follows. First, the quality of ESG report disclosures was found to positively enhance corporate value. Second, no significant results were found for Hypothesis 2, and Hypothesis 3, which suggested the interaction between the importance of ESG report disclosure quality and management characteristics could either increase or decrease corporate value, was not confirmed. Similar results were also identified in the Two-Stage Least Squares (2SLS) analysis conducted to address endogeneity.
[Implications]The conclusion drawn from this research confirmed that the quality of ESG report disclosures improves market evaluations. This study contributes to the literature by being the first to directly investigate mechanisms aimed at enhancing the reliability of ESG reports, providing new evidence on the market response to the quality of ESG report disclosures. The evidence provided in this study can contribute to the expansion of related research.
ENAJENACIÓN Y TRANSMISIÓN DEL DERECHO REAL DE HERENCIA. ESTUDIO DE LA CESIÓN DE DERECHOS HEREDITARIOS Y OTRAS FORMAS DE DISPOSICIÓN
Authors: Corral Talciani Hernán
Published: September 2023

Este estudio tiene por objetivo dar cuenta de las consecuencias derivadas de la conceptualización del derecho real de herencia como derecho real en cosa propia, entre ellas la de que es posible disponer de la cosa universal, que es la herencia mediante la disposición entre vivos o mortis causa del derecho real, como sucede con el dominio. Se analiza el contenido y efectos de la cesión del derecho de herencia regulada en el Código Civil chileno en los artículos 1909 y 1910, así como sobre sus diferencias con la cesión de derechos en la comunidad hereditaria o de cuota de un bien singular contenido en la herencia, a lo que se agrega un análisis de casos de cesión forzosa derivada del embargo o de la prenda de la herencia.
EL LITIGANTE APARENTE EN EL CÓDIGO DE ÉTICA PROFESIONAL DEL COLEGIO DE ABOGADOS DE CHILE A.G.
Authors: Fuenzalida Cifuentes Pablo , Sierra Iribarren Lucas
Published: September 2023

El artículo analiza, a la luz de la ética profesional de la abogacía, la conducta de un abogado que simula litigar a nombre propio en circunstancias que lo hace por el interés de un tercero, cuya identidad permanece oculta. Esta conducta es llamada litigación aparente y el abogado que la despliega, litigante aparente. Los CEP de 1948 y de 2011 no han condenado expresamente al litigante aparente, pero la jurisprudencia sí sobre la base de deberes generales (v.gr., el deber de honradez ante el tribunal). Existe una tendencia similar en el derecho comparado, por desviación del correcto actuar profesional. El derecho comparado muestra, además, que la identidad de la persona que acciona no está amparada por el deber de confidencialidad. El artículo comienza describiendo las reglas del CEP de 2011, que justifican la condena del litigante aparente. Luego, se refiere a las reglas del CEP de 1948 y la jurisprudencia que el Colegio de Abogados desarrolló al respecto. Después, aborda la litigación aparente en el derecho comparado. Finaliza considerando dos puntos adicionales: la posibilidad de que el litigante aparente esté cubierto por el deber de confidencialidad en Chile y si la legislación sobre comparecencia en juicio podría autorizar la litigación aparente.
APLICACIÓN DE LAS NORMAS CONTENIDAS EN LA LEY N.º 19496 A COMUNICACIONES DE NATURALEZA PUBLICITARIA EMITIDAS POR LÍDERES DE OPINIÓN O INFLUENCERS
Authors: Labra Saldías Ignacio
Published: September 2023

El presente trabajo tiene por objetivo analizar la aplicación de las normas contenidas en la Ley n.º 19496 sobre protección de los derechos de los consumidores a los denominados “lideres de opinión” o influencers, en especial dos supuestos infraccionales, la falta de información y la publicidad engañosa. Así, se describe de manera preliminar el ámbito de aplicación o la relación de consumo, compuesta por el proveedor de bienes o servicios, el líder de opinión o influencer y el consumidor. Luego, se da paso al estudio de las principales normas aplicables en esta materia, nos referimos al art. 3.o letra a) sobre libre elección, 3.o letra b) sobre información veraz y oportuna y, por último, el artículo 28 sobre publicidad engañosa. De la mano de legislación nacional y comparada, estudio de casos y doctrina, se construyen obligaciones particulares o deberes de conductas específicos para este tipo de sujetos, conforme a su estándar de profesionalidad y asignando responsabilidad civil o infraccional según corresponda. Por último, se analizan las acciones que otorga la ley por la inobservancia o incumplimiento de dichas obligaciones.
ІНТЕРАКТИВНІ МЕТОДИ НАВЧАННЯ ІНОЗЕМНИХ МОВ СТУДЕНТІВ НЕМОВНИХ СПЕЦІАЛЬНОСТЕЙ
Authors: Онучак Людмила Володимирівна
Published: September 2023

У статті досліджено інтерактивні методи навчання іноземних мов студентів немовних спеціальностей. З огляду на зростаючу глобалізацію та розширення програм міжнародної співпраці України, володіння іноземними мовами стає дедалі більш важливим складником компетентності студентів, особливо тих, які займаються спеціальностями, пов'язаними з міжнародними відносинами, фінансами, економікою, банківською справою та іншими немовними галузями. Метою статті є визначення ефективності й обґрунтування переваг використання сучасних інтерактивних методів у процесі викладання іноземної мови студентам немовних факультетів, а також розкриття сутності запропонованих методів як інструменту оптимізації та стимуляції процесу навчання. Методи. У ході написання статті було використано такі методи дослідження: аналіз, опис, синтез, індукція, дедукція, кластерний аналіз для оцінки методик навчання студентів немовних спеціальностей. Результати. У статті проаналізовано інтерактивні методи навчання, спрямовані на поліпшення комунікативних навичок студентів іноземних мов. Описано традиційні методи, такі як рольові ігри, діалоги та групові проєкти, а також новітні підходи, включаючи використання комп'ютерних програм. Розглянуто особливості застосування інтерактивних методів навчання англійської мови студентів немовних спеціальностей, наведено приклади методик викладання та проаналізовано способи їх проведення. У ході написання статті було отримано такі результати: розглянуто активізацію пізнавальної діяльності студентів як необхідну умову для успішного вивчення іноземної мови; визначено переваги використання рольової гри, реальних комунікативних ситуацій, що підвищує інтерес та мотивацію студента, які необхідні для успішного вивчення іноземної мови. Зроблено такі висновки. Із метою досягнення успішного результату навчання доцільно об’єднувати класичну методику викладання та різноманітні сучасні інтерактивні методики викладання іноземних мов. Загалом проаналізувавши основні інтерактивні методи навчання, які застосовуються в процесі викладання іноземної мови студентам нефілологічних спеціальностей, можемо зробити висновок, що вони дають студентам можливість виявляти проблеми, збирати й аналізувати інформацію, знаходити альтернативні рішення, а також вибирати найбільш оптимальний шлях вирішення завдань у процесі як індивідуальної, так і групової роботи на заняттях.
ОСНОВНІ ЗАСАДИ МЕНЕДЖМЕНТУ ПОВСЯКДЕННОЇ ДІЯЛЬНОСТІ ФІЗКУЛЬТУРНО-СПОРТИВНИХ КОЛЕКТИВІВ ЧИ ТОВАРИСТВ
Authors: Бабенко Вадим Григорович , Євдокимова Лілія Григорівна , Корж Євген Миколайович
Published: September 2023

У статті відображено основні засади формування менеджменту повсякденної діяльності фізкультурно-спортивних колективів чи товариств. Виявлено, що система загального фізкультурно-спортивного менеджменту та розглянуті його окремі елементи мають свою чітко визначену будову та структуру, до якої, окрім штатно-посадової чисельності, входить стала сукупність загальнолюдських, професійно-службових, соціальних, етичних та естетичних норм, знань, умінь, навичок, переконань, думок і вимог як до кожного окремого працівника, так і до колективу взагалі. З’ясувавши тлумачення й зміст окремих термінів та дефініцій, які зацікавили нас із числа необхідних законодавчих та інших наукових джерел правової, управлінської, довідникової та фізкультурно-спортивної спрямованості, нами було запропоновано переглянути й замінити у Законі України «Про фізичну культуру і спорт» термін «сфера» на «галузь» у словосполученні «у сфері фізичної культури і спорту» на дещо звужене, але, на нашу думку, більш конкретизоване поняття «у галузі фізичної культури і спорту». Ураховуючи майже однакову ідентичність чи тотожність обох розглянутих термінів, ми вважаємо, що за подальшого доопрацювання Закону необхідно чітко означити кордони, межі, позиції, рубежі або лінії їх використання чи застосування в системах «сфера в галузі» чи «галузь у сфері» залежно від подальшої загальної необхідності й потреб фізичної культури і спорту. Окрім того, установлено, що чим більше й довше, вибраний і широкий, своєчасно підкоригований чи взагалі позитивно змінений асортимент виконуваних дій, функцій та послуг слугуватиме ефективним засобом досягнення поставленої мети, тим рідше досліджувані суб’єкт і об’єкт зазнаватимуть впливів негативних стан-факторів внутрішнього чи зовнішнього психічного конфлікту, що зазвичай може виникати у разі зіткнення у свідомості чи підсвідомості як окремого індивіда, так і у цілої групи об’єднаних колективом осіб суперечливих питань, рішень, знань, ідей, переконань або вже існуючих поведінкових установок. Також у ході дослідження виявлено конкретну спрямованість переважної більшості досліджуваних осіб на досягнення успішного результату.
Potential Use of Underutilised Mushroom Stems in Meat Products and Meat Analogues: A Mini Review
Authors: SAYEED IBRAHIM HANA SYAFIQAH , NUR HUDA FAUJAN
Published: September 2023

The demand for meat has gradually increased throughout the years, and it is more widely ingested than plant products due to its sensory qualities as well as its high nutritional content, mainly protein. However, meat is low in calcium, dietary fibre, and vitamin C. Consumers' increased awareness of the possible links between nutrition and health has recently led to major dietary changes toward healthier food options. Furthermore, rising meat prices, vegetarianism, concerns about animal suffering, and sustainability issues have driven market trends toward meat alternatives from plant sources. As such, mushrooms are regarded as one of the healthier ingredients due to their nutritive, bioactive, and therapeutic values. The fibrous structure mimics the texture of meat and possesses an umami flavour, which imparts a meaty taste to the food products. Globally, Asian countries generate the highest percentage of overall mushroom production. The application of mushrooms, however, is limited to the fruiting bodies rather than the stems, which also contain high dietary fibre content. The stems are often discarded as food waste due to their tough texture. Researchers have begun to use edible mushroom waste and their by-products, especially stems, to create value-added products in a variety of sectors, such as the food industry, owing to their nutritional values and contributions to the circular economy and environmental protection. Thus, the primary intent of this review is to discuss the potential of underutilised mushroom stems in meat products.
Applying Heterogeneous Catalytic Reactions for Organic Chemical Syntheses
Authors: Hegedűs László , Hell Zoltán
Published: September 2023

In this review the most important results achieved in the recent 12–15 years are summarized focusing on the heterogenous catalytic hydrogenations over transition metals (Pd, Pt, Ru, Rh, La), as well as the application of palladium, copper and other metals on a molecular sieve (4A) support in several organic chemical syntheses in liquid phase.
Osteoarthritis disease progression through the lower extremity: A review
Authors: Canton David , Conte Michael , Kammen Pamela
Published: September 2023

It has long been felt that osteoarthritis is the result of wear and tear. Many physicians are not aware that biological science has now validated that this increased “wear and tear” on the joint is the result of loading-induced stresses that undermine cell function and aging. The loading creates shear forces on the cartilage that leads to increased oxidants. These oxidants then cause chondrocyte premature aging, leading to the development of what we know as osteoarthritis.

Studies have also found a significant association between foot pain and knee and hip pain. Likewise, many physicians are not aware of the relationship between the hip, knee and foot are a result of the kinetic chain. The kinetic chain being the dynamic transfer of forces during ambulation of the foot, ankle, knee, and hip. The kinetic chain explains how the body’s joints and segments affect one another during movement, and so play a role in pain. The pain results from transferred mechanical stress from one joint to another. The same stress and shear forces that leads to osteoarthritis.

This article involves a literature of the connection of osteoarthritis and the kinetic chain in the lower limb and highlights the need to consider related joints in the kinetic chain when addressing and injury in one joint to address and perhaps delay progression of osteoarthritis in related joints.
In-vitro evaluation of co-excipients for release of donepezil hydrochloride from Carbopol 974P based tablets
Authors:   Department of Chemical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey, SENOL Sebnem , AKYOL Emel ,   Department of Chemical Engineering, Yildiz Technical University, 34210 Istanbul, Turkey
Published: September 2023

The prime aims of the present work at formulating and preparing matrix tablets using Carbopol 974P to sustain the release of donepezil HCl. Tablets were prepared by direct compression method and evaluated for the effects of ingredients on the in-vitro release behavior. Gelatin, α-cellulose, sodium alginate, hydroxyapatite, and natural zeolite (clinoptilolite) were used as co-excipients to modulate the formulations. The prepared tablets of the 10 formulations were characterized by using Fourier transform infrared spectroscopy (FT-IR), digital microscope and scanning electron microscopy (SEM) techniques. The drug release kinetics was analyzed using Zero-order, First-order, Hixson-Crowell and Peppas models. The result indicated that the drug release rates highly depended on the polymers and pH medium. In addition, it was obtained that the combination of Carbopol 974P and gelatin retarded the drug release. So, these matrix tablets can reduce the dose intake. Thus, these matrix tablets are a promising release of donepezil HCl.
A new direct extraction by gas-chromatography with flame ionization detector coupled to head space method for the determination of alcohol content of high matrix wine products
Authors:   Gazi University Faculty of Pharmacy, Department of Toxicology, Ankara, Turkey, ULUTAŞ Onur Kenan , BERKKAN Aysel
Published: September 2023

Detection, identification, and quantitation of alcohol in any matrix rich medium is a common practice although sample preparation is inevitable and time consuming. A sensitive, precise and ultimately wide range method for detection, identification and quantification of main content/residual/impurity alcohols without any matrix interference that can be used for production phase quality control, pharmaceutical and/or bio-technological refinement or toxicological evaluation and for forensics is always needed. Even for quality control also for toxicological considerations, ethanol (EtOH) and very similar compound methanol has to be detected and identified definitely becomes vital. However, with the fermented products, the matrix becomes a challenging process, makes the methods inefficient or more extraction methods have to be implanted. Here we propose a new simple and reliable direct extraction method has been developed for the determination of alcohol content of high matrix wine products using the gas-chromatography with flame ionization detector coupled to head space. The method was developed with a rich and complex component mixture of fermented alcoholic beverages (wine) with very high matrix effects. Isopropanol (IPA) was preferred as an internal standard, and Triton X-100 (TX-100) was used as diluting solution in this method. The amount of TX-100, extraction temperature, and the total volume of solution in head space vial (20 mL) were optimized. 2.5% TX-100, 80 °C extraction temperature, and 2.0 ml of total volume were used as optimum condition. Stationary phase was the fused silica, Agilent J&W DB-624 column (30 m x 320 m x 1.8 m) and Helium was used as a mobile phase. GC oven temperature programme was 40C (5 min), 5C/min ramp to 60C (0 min) and 30C/min to 150C (1 min). Performance of the method was assessed by evaluating the recovery, accuracy, precision, linearity, limits of detection (LOD) and limit of quantification (LOQ). Calibration curve was drawn between the concentration of 2.5% to 15.0% EtOH (y = 1.572x – 0.702, R² = 0.9960, y; the ratio of peak area of EtOH to IPA, x: EtOH%). The slopes of standard addition and external calibration curve were statistically same. Recovery of the method was 97.5 ± 3.5 for tree different concentrations and the precision was %5.8 (n= 11). LOD and LOQ were calculated as 0.80% and 2.5%, respectively. The proposed method has a potential for application into the industry and academia with determination of the alcohol content/residual/impurity and also check the quality and content of the fermented medium without the effect of matrix.
Synthesis and cytotoxic activity evaluation of 1,4-dihydropyridine derivatives using Ag2O/GO/TiO2 composite nanostructure
Authors:   Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran, ZADEH Fatemeh Samandi , MOHAMMADI Mohammad Kazem ,   Advanced Surface Engineering and Nano Materials Research Center, Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran, RAYATZADEH Ayeh ,   Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran, HASANZADEH Neda ,   Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Published: September 2023

Ag2O/GO/TiO2 composite nanostructure was established as a heterogeneous catalyst for the one pot synthesis of dihydropyridine derivatives via Hantzsch reaction. The synthetic method was mainly used in the presence of Ag2O/GO/TiO2 nano composite as a heterogeneous solid catalyst. This nano composite catalyzed Hantzsch reaction afforded good yields (87–95%) in solvent free condition at 90 °C. A broad range of structurally diverse aldehydes were applied successfully, and corresponding products were obtained in high yields without any byproduct. Compared with other methods, satisfactory results are obtained with high yields, short reaction times, and simplicity in the experimental procedure. Cytotoxic activities for some of the synthesized compounds were evaluated by MTT assay in three human cancer cell lines (HeLa, LS180 and Raji). Half of the tested compounds showed good cytotoxicity in Raji cells. Diethyl 4-(2,4-dichlorophenyl)-1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate (3 i) was found to be the most potent molecule among the studied 1, 4 dihydropyridines derivatives. Electron withdrawing groups along with heterocyclic rings bearing more hetero atoms seemed to be necessary factors in providing higher cytotoxic activities in Raji cell lines.
Kinetics of phosphate adsorption from aqueous solution into organobentonite by cationic polymer grafted bentonite
Authors:   Laboratory of Soft Technology, Recovering, and Sustainable Development Faculty of Science,M’HamedBougara University, BP 70, 35000 Boumerdes, Algeria, AMRANI Moussa , BANDOU Samira ,   Laboratory of Soft Technology, Recovering, and Sustainable Development Faculty of Science,M’HamedBougara University, BP 70, 35000 Boumerdes, Algeria
Published: September 2023

Natural clays are abundantly available low-cost natural resource which is nontoxic to ecosystem. Over the recent years, research on the modification of clay to increase their adsorbent capacity to remove contaminants from aqueous solution. In this study, natural bentonite was modified with polydimethyldiallil tetraammonium chloride (PDMDMAC) and Hexadecyltrimethylammonium bromide (HDTMAB). Bentonite, PDMDMA-Bt and HDTMA-Bt were then characterized using XRD, XRF, SEM, FT-IR, elemental analysis and Brunauer-Emmett-Teller (BET) surface area techniques. The HDTMA+ and PDMDMA+ cations were found to be located on the surface and enters the interlayer spaces of smectite according to the XRD and SEM results. FT-IR spectra indicated the existence of HDTMA PDMDMA functional groups on the bentonite surface. The BET surface area significantly decreased after the modification due to the coverage of the pores of natural bentonite. After the characterization, the kinetics adsorption of phosphate ions (PO4-3) onto betonies, HDTMAB-Bt and PDMDMA-Bt was investigated. On kinetic data representation, pseudo-first, pseudo-second order and intraparticle diffusion models were used, with the pseudo-second-order model gave better correlation which indicates chemisorption between adsorbent and adsorbate molecules.
Corrosion inhibition of API5L X60 steel in sulfuric acid using gum arabic
Authors:   Laboratoire sciences et techniques de l’eau et environnement, Université Mohamed Chérif Messaadia - Souk-Ahras, Algeria, SOBHI Nour-El-Houda , BOUKHOUIETE Amel ,   Laboratoire de Métallurgie Physique et Propriété des Matériaux, Université Badji-Mokhtar, Annaba, Algeria
Published: September 2023

The aim of this research is the evaluation of inhibitory efficiency of Gum Arabic (GA) against the corrosion of API5L X60 pipeline steel in H2SO4 (0.5M) media, using mass loss measurement and electrochemical methods. The results show that inhibition efficiency increases with inhibitor concentration to attain 83% at 4 g/L of GA. Polarization curves reveal that GA acts as a mixed-type inhibitor in sulfuric acid. The adsorption of GA on pipeline API 5L X60 steel surface obeyed the Langmuir adsorption isotherm. Gibbs free energy of adsorption indicated that the adsorption process is spontaneous and the molecules adsorbed on the metal surface by the process of physical adsorption.
Effect of temperature on anti-corrosion properties of aluminum alloy anodized by sulphuric acid
Authors:   Laboratory of Materials and Environment Interactions (LIME), University of Jijel, OuledAïssa, BP 98, Jijel 18000, Algeria, NAFA Feyrouz , BENSABRA Hakim ,   Laboratory of Applied Energetics and Materials (LEAM), Université of Jijel, OuledAïssa, BP 98, Jijel 18000, Algeria, CHOPART Jean Paul ,   MATIM Laboratory, UFR Sciences, University of Reims Champagne Ardenne, B.P. 1039 - 51687 REIMS (Cedex 2), France, CHELAGHMIA Mohamed Lyamine ,   LAIGM Laboratoiry, 8 Mai 1945 University- Guelma, Algéria
Published: September 2023

Temperature is one of the most important parameters in anodizing treatments of aluminum alloys as it directly affects the quality of the anodic coatings. This research study has examined and investigated the effect of this important parameter on the anti-corrosion properties of the anodizing layers of aluminum alloy 5083.The morphology and crystalline structure of anodic oxide layers were characterized respectively by X-ray diffraction, scanning lectron microscopy and EDX analysis. The corrosion behaviour of the alloy, before and after anodization at different temperatures, was analyzed in chlorinated medium using different electrochemical techniques, namely open circuit potential measurement, potentiodynamic polarization and electrochemical impedance spectroscopy. The results showed that temperature has a significant influence on the quality of the anodic oxide layers. Therefore, for a relatively low treatment temperature, the developed anodic films show high surface roughness values and contain fewer pores and defects compared to the films obtained at 20°C. Electrochemical analysis indicates that these films also show good corrosion resistance in the chloride environment. This is reflected by relatively low corrosion current density values as well as relatively high polarization resistance values.
Study of influence of anomeric effect on conformational preferences using hybrid density functional theory (DFT) and natural bond orbital (NBO) interpretation
Authors:   Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran, DANSHPAJUH Marjan , HASANZADEH Neda ,   Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Published: September 2023

For the relationship between thermodynamic parameters, global hardness, global electronegativity, anomeric effect, structural parameters, and structural properties of dodecahedro-spiro [isochromene-3,2'-pyran] (A), dodecahedro-spiro [isothiocromene-3,2'- thiopyran) (B), dodecahedro-spiro [isochroman-3,2'-thiopyran] (C) and dodecahedro-spiro [isothiochrome-3,2'-pyran] (D) computational methods (B3LYP / 6-311 ++ G **) were used. Results show that the calculated Gibbs free energy and enthalpy differences between the axial- and equatorial- stereoisomers [i.e. ΔG = Geq – Gax, ΔH = Heq- Hax] decrease from compound A to compound B and from compound C to compound D. NBO results show that the anomeric effect associated with the electron delocalization is in benefit of the axial-stereoisomers and with the decrease of the anomeric effect, the values of global hardness (η), and global electronegativity (χ), from compound A to compound B and from compound C to Composition D is also decrease. The correlations between the global hardness, global electronegativity, anomeric effect, structural parameters, and thermodynamic parameters [ΔH, ΔG, and ΔS] of compounds A-D have been investigated. Also, it can be concluded that the stability energy obtained from the numerical values of the anomeric effect and the values calculated theoretically (B3LYP / 6-311 ++ G **) confirmed each other.
Synthesis and antimicrobially activities of coumarin-3-carboxamide derivatives
Authors:   Istanbul University-Cerrahpaşa Engineering Faculty Chemistry Department Organic Chemistry Division  Avcilar/İstanbul/Turkey, ÇELIK-ONAR Hülya , BAYRAMOĞLU Gökçe ,   Istanbul University-Cerrahpaşa Institute of Graduate Studies  Avcilar/İstanbul/Turkey, MATARACI-KARA Emel ,   Istanbul University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology 34116 Beyazıt-Istanbul/Turkey
Published: September 2023

In this study nine coumarin-3-carboxamide derivatives 3a-3i were synthesized with coumarin-3-carboxylic acid chloride and different amines. Two of them, 3c and 3i, are original. The novel substances were purified by column chromatography, and their structures were identified by spectroscopic methods (1H NMR, 13C NMR, IR) and elemental analysis. Coumarin-3-carboxamide derivatives were evaluated antimicrobially against ten different ATTC isolates. The compound 3f was found to be the most effective compound in terms of antibacterial and antifungal activities.
Immune checkpoint molecule DNAM-1/CD112 axis is a novel target for NK-cell therapy in acute myeloid leukemia
Authors: Kaito Yuta , Sugimoto Emi , Nakamura Fumi , Tsukune Yutaka , Sasaki Makoto , Yui Shunsuke , Yamaguchi Hiroki , Goyama Susumu , Nannya Yasuhito , Mitani Kinuko , Tamura Hideto , Imai Yoichi
Published: September 2023

Acute myeloid leukemia (AML) is a hematological malignancy that frequently relapses, even if remission is achieved with intensive chemotherapy. One known relapse mechanism is the escape of leukemic cells from immune surveillance. Currently, there is no effective AML immunotherapy owing to the lack of specific antigens. Here, we aimed to elucidate the association between CD155 and CD112 in AML cell lines and primary AML samples and their therapeutic response. Briefly, we generated NK-92 cell lines (NK-92) with modified DNAX-associated molecule 1 (DNAM-1) and T-cell immunoglobulin and ITIM domain (TIGIT), which are receptors of CD155 and CD112, respectively. Analysis of 200 AML cases indicated that high expression of CD112 is associated with shorter survival than low expression. NK-92 DNAM-1 exhibited enhanced cytotoxic activity against AML cell lines and primary cells derived from patients with AML. DNAM-1 induction in NK-92 cells enhances the expression of cytotoxicity-related genes, thus overcoming TIGIT inhibitory activity. Between CD155 and CD112, CD112 is an especially important target for NK cell therapy of AML. Using a xenograft model, we confirmed the enhanced antitumor effect of NK-92 DNAM-1 compared with that of NK-92 alone. We also revealed that CD112 (Nectin-2), an immune checkpoint molecule belonging to the Nectin/Nectin-like family, functions as a novel target of immunotherapy. In conclusion, the modification of the DNAM-1/CD112 axis in NK cells may be an effective novel immunotherapy for AML. Furthermore, these results suggest the potential of the expression levels of these molecules as prognostic markers in AML.
Escherichia coli y coliformes totales en carne molida comercializada en el mercado 12 de abril Cuenca-Ecuador
Authors: Quizhpi Quito Kelly Belén , Bravo Crespo David Israel , Baculima Suarez José Antonio
Published: September 2023

Introducción: La carne de res molida es una fuente de alimento por su contenido de proteína, sin embargo, al ser manipulada de forma incorrecta, existe la posibilidad de contaminación por microorganismos perjudiciales para la salud como el caso de Escherichia coli. Objetivo: Determinar la presencia de Escherichia coli y Coliformes Totales en carne molida comercializada en el mercado 12 de abril de la ciudad de Cuenca- Ecuador. Metodología: Diseño transversal no experimental, de tipo descriptivo y observacional. Se realizó un muestreo de tipo no probabilístico por conveniencia para la obtención de 120 muestras de carne de res molida. Resultados: De las 120 muestras recolectadas se determinó una frecuencia de Escherichia coli en el 75% y un 16,67% de Coliformes totales, en la carne de res molida. Conclusión: Se evidenció la presencia de Escherichia coli y Coliformes Totales en las muestras obtenidas de carne de res molida, expendidas en el mercado 12 de abril de la ciudad de Cuenca, esto puede deberse a la falta de higiene y una mala manipulación del producto por parte de sus expendedores. Área de estudio general: medicina, Área de estudio específica: microbiología, Tipo de estudio: revisión bibliográfica.
Riesgos ergonómicos asociados a trastornos musculoesqueléticos en odontólogos, Distrito de Salud 03D02, Cañar
Authors: Picón Saavedra Galo Santiago , Campoverde Jiménez Gerardo Eugenio , Manzano Merchán Fredy Omar
Published: September 2023

Introducción: Los trastornos musculoesqueléticos se han incrementado, siendo el principal problema de salud de origen profesional provocando ausentismo laboral. Los odontólogos están expuestos a riesgos ergonómicos por posturas forzadas al realizar sus labores. Metodología: La metodología partió del análisis de los riesgos ergonómicos asociados a trastornos musculoesqueléticos en odontólogos. Siendo observacional, cualitativa y descriptiva, de corte transversal en 30 odontólogos del distrito de salud de Cañar en el año 2022. Resultados: El cuestionario nórdico determinó molestias musculoesqueléticas, y el método REBA valoró el riesgo por posturas forzadas. Hallando que, en los últimos 12 meses presentaron sintomatología a nivel de cuello (90%), región lumbar (86.7%) y muñeca (63.3%). Los resultados del método REBA indican, alto riesgo (50%), muy alto riesgo (33.3%) y riesgo medio (16.7%). Conclusión: Los resultados obtenidos en la evaluación indican diferentes grados de riesgo: en el cuello (riesgo muy alto), región lumbar; y, muñeca (riesgo alto). Área de estudio general: salud. Área de estudio específica: salud ocupacional.
Các yếu tố ảnh hưởng đến chi tiêu cho thịt lợn an toàn của người tiêu dùng ngoại thành Hà Nội
Authors: Lê Thị Thu Hương , Lưu Văn Duy
Published: September 2023

Phát triển chuỗi thịt lợn an toàn là bước đi bền vững của thành phố Hà Nội giúp đảm bảo an toàn thực phẩm, giảm thiểu dịch bệnh trên vật nuôi và ô nhiễm môi trường. Tuy nhiên thị trường thịt lợn an toàn rất nhỏ, đặc biệt là khu vực ngoại thành Hà Nội. Nghiên cứu này phân tích các yếu tố ảnh hưởng đến chi tiêu cho thịt lợn an toàn tại khu vực này. Kết quả nghiên cứu chỉ ra các yếu tố giúp tăng chi tiêu cho thịt lợn an toàn bao gồm: thu nhập bình quân, gia đình có phụ nữ có thai hoặc trẻ nhỏ, thương hiệu sản phẩm, sự tin tưởng, nguồn thông tin từ người thân bạn bè là các yếu tố tăng chi tiêu cho thịt lợn an toàn. Trong khi đó, quy mô hộ, thói quen mua ở chợ truyền thống và khoảng cách là những yếu tố làm giảm chi tiêu cho thịt lợn an toàn. Từ các kết quả trên, nghiên cứu đã đề xuất một số kiến nghị và giải pháp đối với nhà nước và các bên liên quan để phát triển thị trường thịt lợn an toàn trên địa bàn nghiên cứu.
Legal Challenges Hindering the Development of Islamic Finance in Uzbekistan
Authors: Asadov Alam
Published: September 2023

Background:
Recently, the Uzbek government expressed interest in introducing Islamic financial services. Nevertheless, the creation of the legal framework for the smooth operation of Islamic financial institutions is dragging. This work attempts to identify legal hurdles preventing thepenetration of the Islamic finance industry in Uzbekistan, and formulates vital policy recommendations to lead the development of a regulatory framework for the industry.

Methods:
A library research method and legal analysis is employed by going through diverse legal matters. For that purpose, we studied a range of legal documents varying from banking and capital market legislation to some newly introduced laws. Additionally, issues of Islamic finance in the tax law and the civil code of the nation are scrutinized.

Results and Conclusions:
The finding of the paper shows that some legal barriers exist that hinder the complete implementation of the Islamic finance industry in the country. They are not only in one area of national legislation but also exist in various parts of the legal system. Accordingly, it is recommended that the Uzbek government develop a sound legal and regulatory framework to provide a favourable environment for the activities of Islamic finance institutions. The general conclusion of the research resolves that, even if the process of developing an Islamic finance legal framework may start gradually, it should be holistic to be fully effective.
The Influence of Learning Motivation on Students' Achievement in Learning Indonesia
Authors: Yuni Pertiwi  , Sukarno  , Vebbi Andra
Published: September 2023

This research is motivated by the phenomenon that all parents want their children's education to be good, so they pay attention and optimize for their children's education. The existence of this need, humans are encouraged to fulfill it. This encouragement is called motivation. In this case, of course the role of motivation is very important. The objectives of this study are (1) to determine whether there is an effect of learning motivation on student learning achievement at SMPN 1 Bengkulu city. (2) To determine how much significance the effect of student learning motivation on student learning achievement in SMPN 1 Bengkulu city.This study uses a quantitative approach with regression type.The population is SMMPN 1 Bengkulu city which totals 854 students. The sample was 90 students, the method of data research with questionnaires and documentation. All instruments have met the measurement requirements, because they have been tested so that they have met the validity test requirements using product correlation and reliability using Cronbach alpha, and have passed the prerequisite test. Data analysis using the T test and the percentage of influence using the coefficient of determination adjuster Rsquare. The results showed that (1) there is a significant effect of learning motivation on learning achievement as evidenced by the value of Rhitung> Rtabel, namely 0.611> 0.361 and Sig <0.05, namely 0.000 <0.05. (2) The effect of the coefficient of determination Adjusted R square 0.020 on the summary model in the regression test, so that the effect of learning motivation (X), on learning achievement (Y) is 2%.
Comparative Study of the Psychological Characteristics Athletes in terms of Individual Sports and the Team
Authors: Lidya Erika  , Yahya Eko Nopiyanto  , Defliyanto
Published: September 2023

This research was aimed to investigate: (1) the psychological characteristics of SMANKO Bengkulu Province athletes in terms of individual sports, (2) in terms of team sports, (3) the psychological characteristic differences of SMANKO Bengkulu Province athletes in terms of individual and team sports. This research employed the quantitative with comparative design. The subjects in this research were 56 athletes, namely 28 individual athletes and 28 team sports athletes. The data collection technique was conducted with the psychological skills inventory for sports that adopted from Mahoney, Gabriel & Perkins, (1987). Data were analyzed using t-test with a significant level of 0.05. The data were collected using the Psychological Skills Inventory for Sports questionnaire and analyzed using the independent sample t test. The research findings revealed that: (1) the psychological characteristics of SMANKO Bengkulu Province athletes in terms of individual sports, (2) the psychological characteristics of SMANKO Bengkulu Province athletes in terms of team sports are in high category, (3) there were no significant differences in the psychological characteristics of SMANKO Bengkulu Province athletes in terms of individual and team sports values = 0.508 > 0.05.
Pembinaan Keterampilan Mahasiswa dalam Promosi Kesehatan Melalui Pemanfaatan Aplikasi Monitor Kebugaran Pacer Health
Authors: Laeto Arwan Bin
Published: September 2023

Peningkatan penyakit infeksi dan non infeksi yang masih tinggi di Indonesia menjadi penting dilakukan edukasi kesehatan kepada masyarakat. Mahasiswa sebagai kelompok yang memiliki tanggungjawab mengembangkan kompetensi perlu menguasai perkembangan teknologi dan keterampilan komunikasi efektif. Kegiatan ini bertujuan untuk membina keterampilan mahasiswa dalam melakukan promosi kesehatan melalui pemanfaatan teknologi aplikasi Pacer Health guna monitor kebugaran tubuh. Metode dalam kegiatan pengabdian ini adalah pelatihan dengan kelompok sasaran yaitu mahasiswa baru Fakultas Kedokteran Universitas Sriwijaya.  Tahapan kegiatan meliputi edukasi yang disertai kuis sebelum dan sesudah edukasi, diskusi kelompok mahasiswa dan demonstrasi promosi kesehatan melalui pemanfaatan aplikasi Pacer Health guna memonitor kebugaran tubuh. Hasil yang diperoleh dari kegiatan pengabdian ini adalah terjadi peningkatan pengetahuan mahasiswa terkait kesehatan olahraga sebanyak 57,8%, teknologi kedokteran meningkat sebanyak 64,9%, aplikasi Pacer Health sebanyak 63,5% dan teknik promosi kesehatan sebanyak 58,7%. Mahasiswa juga mengalami peningkatan keterampilan dalam penggunaan aplikasi kesehatan dan terjadi penambahan pengalaman dalam menyusun strategi dan pelaksanaan promosi kesehatan, khususnya melalui pemanfaatan teknologi sekaligus dapat meningkatkan kompetensi komunikasi efektif. Pasca kegiatan ini, mahasiswa disarankan untuk terus mendalami perkembangan teknologi aplikasi kesehatan yang dapat membantu dalam menjalankan profesi sebagai dokter kelak.