bluuebunny/crossref_metadata_2025 huggingface dataset:
Capital Structure and Bank Performance in Indonesia's Dual Banking System
Authors: Melinda Vera , Wiliasih Ranti , Irfany Mohammad Iqbal , Haq Daffa Aqomal , Camara Bumi
Published: December 2024

The capital structure of a bank is directly tied to the risk and rate of return. The aim of this study is to examine the impact of capital structure on financial performance in Indonesia's dual banking system from the first quarter of 2013 to the third quarter of 2019, using 9 Conventional Commercial Banks (BUK) and 9 Sharia Commercial Banks (BUS) as research samples. Panel data regression is employed in this study, with Return on Assets (ROA) and Return on Equity (ROE) as dependent variables, and Equity to Total Asset Ratio (EAR), Debt to Equity Ratio (DER), company size, and economic growth as independent variables. The findings reveal that EAR, DER, and economic growth all have beneficial and significant effects on conventional commercial banks' ROA and ROE. Company size and economic growth have a positive and significant effect on ROA and ROE, while Sharia Commercial Banks, EAR, and DER have a negative and significant effect on ROA and ROE. These findings indicate that capital structure has a sometimes beneficial impact on financial success.
Systematic Review on Indonesia Halal Certification
Authors: Ikhwan Ihsanul
Published: December 2024

The implementation of the law mandates the establishment of a new government agency under the Ministry of Religious Affairs, namely the Halal Product Guarantee Agency (BPJPH), which was previously handled by LPPOM MUI. Halal certification aims to serve the interests of Muslims and support them in practicing their religious teachings. This study aims to examine the development of research on “Halal certification in Indonesia” published by journals on this topic. The data used are secondary data obtained from scientific publications indexed by the Scopus database of 106 documents. This research uses a qualitative method with a bibliometric approach, which is processed using VOSviewer software. The results of the study show that there are 4 research clusters including halal certification system in indonesia, consumer perceptions and halal certification in indonesia, halal cosmetics and halal certification in indonesia, implementation of halal standards and halal certification in indonesia.
Moratorium from Shariah Perspective: Its Impact on Islamic Banking in Malaysia
Authors: Ali Mohammad Mahbubi
Published: December 2024

As the COVID-19 pandemic intensifies worldwide, lockdowns-or partial lockdowns-to restrict movement have been the preferred mechanism to reduce the infection rate of the virus in most countries. Imposing a movement control necessitates the closure of economic and business activities, including restricting travel between borders. Malaysia, for instance, implemented the Movement Control Orders (MCO) beginning March 18, 2020. Nevertheless, this measure caused many businesses to shut down and impacted millions of individuals' cash flow, small and medium enterprises, and corporate sectors. In response, many governments introduced the repayment moratorium policy to ease the cash flow of SMEs and individuals affected by the COVID-19 pandemic. This article aims to examine the repayment moratorium from an Islamic perspective. It also sheds critical light on the impact of COVID-19 and moratorium policies on the Islamic banking industry in Malaysia and other jurisdictions. The study is qualitative, adopting library research, benefiting from various sources: the Qur'an, the Prophet's tradition, the opinions of Shari'ah scholars and other available secondary data. This study should serve as a reference point for academics, policymakers, and researchers interested in the moratorium issue in Islamic finance.
Batıya Açılan Kapı: Sava Nehri ve 1521 Belgrad Seferi İçin Kurulan Ahşap Askerî Köprüler
Authors: Deniz Derya
Published: December 2024

Bu çalışma, Kânunî Sultan Süleyman'ın 1521'deki Belgrad Seferi’nde Sava Nehri'nin Osmanlı askerî stratejisindeki belirleyici konumunu, nehir üzerinde inşa edilen yüzer ve sabit askerî köprülerin fetihteki rolünü incelemektedir. Belgrad, Osmanlı Devleti için batıya doğru genişlemede kritik öneme sahip bir şehir olup, sahip olduğu coğrafi unsurların askerî sahaya etkisi, sefer sırasında izlenen stratejilerde ön plana çıkmaktadır. Mevcut araştırmalar genellikle kale muhasaralarına ve fetih sonrası idari yapılanmalara odaklanırken, bu çalışma köprülerin yapısal özellikleri ve tarihçesi üzerinde durarak, dönemin kronikleri ve Topkapı Sarayı Müzesi Arşivi'nden elde edilen belgelerle yeni detaylar sunmayı amaçlamaktadır. Sonuç olarak araştırma, Belgrad Seferi sırasında kurulan köprülerin önemini vurgulamakta ve Osmanlı askerî taktiklerinin coğrafi unsurlarla nasıl bir araya geldiğini ortaya koymayı hedeflemektedir.
Edukasi Minimalisir Penggunaan Wadah Plastik Melalui Kampanye “Sayangi Bumi Dan Dirimu, Dengan Membawa Bekalmu”
Authors: Tosepu Ramadhan , Effendy Devi Savitri , Jamustiara Syakinah , Rahmadhani Sri , Jono Tamara Moratono , Ramadhan Dela , Revalina Revalina
Published: December 2024

Campaign The purpose of the "Love the Earth and Yourself, by Bringing Your Own Lunchbox" campaign is to educate students about the dangers of using plastic as food containers and to encourage the use of non-plastic food containers among students. An initial survey was conducted to obtain information on the pattern of single-use plastic use among students with a questionnaire developed using the Health Belief Model (HBM) theory approach. The campaign developed educational posters and appointed anti-single-use plastic ambassadors. Through this initiative, it is hoped that Halu Oleo University can become a pioneer in the movement to reduce plastic usage and create a more sustainable campus environment
Pelatihan Meningkatkan Branding Melalui Implementasi Digital Marketing pada UMKM Aquascape (Aqua Menoreh Gallery)
Authors: Edi Saputra  , Asfa Mutiara Ahmad Pabulo
Published: December 2024

This community service aims to develop digital technology mastery for MSMEs in entrepreneurship. To provide branding strength and increase market share, it is necessary to implement the use of social media for MSMEs so that their businesses can grow. The community service methods used include preparation, implementation, and evaluation. The preparation steps consist of licensing, observation of obstacles, and preparation of materials. The implementation stage includes explanations and training for MSMEs. The last stage is the evaluation stage by assessing the understanding of MSMEs' knowledge about digital marketing and increasing sales. The material to be provided is related to the concept of marketing content, the use of digital marketing e-commerce applications through social media. The results of community service utilizing digital marketing can provide a positive contribution in optimizing marketing for Aquascape Menoreh Gallery MSMEs. Better understanding and skills for MSMEs in using social media are expected to have a sustainable impact on the growth and development of MSMEs
Pengaruh Norma Subjektif dan Pengetahuan Yadan bi Yadin Terhadap Minat Masyarakat Berinvestasi Emas Digital di Indonesia
Authors: Karisma Alam Muhammad , Anis Muhammad
Published: December 2024

Penelitian sebelumnya menjelaskan efek tekanan sosial atau norma subjektif (SN) pada niat investasi atau transaksi jual beli emas secara digital dalam islam. Oleh karena itu, penelitian ini membahas seberapa besar efek masyarakat terkait pengetahuan tentang yadan bi yadin mempengaruhi norma subjektif dalam minat masyarakat berinvestasi emas digital. Norma subjektif (SN) mempengaruhi persepsi kebermanfaatan atau perceived usefulness (PU) dan kemudahaan pengunaan atau perceived ease of use (PEU) tetapi dikarenakan pengaruh dari pengetahuan yadan bi yadin (YY) maka masyarakat tidak mempunyai intensi atau intention to use (INT) untuk berinvestasi emas digital. Studi ini memiliki keterbatasan dalam hal sampel karena sebagian besar didominasi oleh kaum milenial. Persepsi generasi yang lainnya mungkin akan berbeda. Harapannya masyarakat Indonesia yang sebagian besar adalah muslim mengetahui syariat islam yang sesuai Al-Quran dan sunnah terkait jual beli emas digital. Ini mungkin melemahkan efek PU pada INT. SN sebagai faktor sosial juga memiliki efek yang kuat pada INT. Sebagai implikasi praktis, makalah ini menyarankan pemerintah dan komunitas muslim untuk bersama sama untuk mengembangkan, mengatur model bisnis yang lebih mematuhi syariah terkait jual beli emas serta memberikan edukasi yang baik kepada masyarakat. Jurnal ini berkontribusi pada literatur yadan bi yadin sebagai syarat dalam syariat islam didalam jual beli emas digital
Analyzing the Students Pronounciation of Alphabet through IPA (International Phonetics Alphabet) at 4th Grade Students
Authors: Saputri Yunita , Said Dian Riani , Muhdar Fahriadi
Published: December 2024

Penelitian ini bertujuan untuk menganalisis efektivitas pembelajaran Fonetik Alfabet khusus nya penggunaan International Phonetics Alphabet (IPA) dalam meningkatkan kemampuan pelafalan Bahasa Inggris siswa kelas 4 SD 38 Janna-jannaya yang berjumlah 18 siswa, di Desa Bonto Majannang Kec. Sinoa, Kab. Bantaeng. Penelitian ini menggunakan pendekatan kualitatif dan desain studi kasus untuk mengamati interaksi siswa selama 6 kali pertemuan. Data dikumpulkan melalui observasi langsung dan angket yang di isi oleh siswa untuk mengevaluasi tingkat antusiasme mereka selama pembelajaran Fonetik. Hasil dari angket yang diberikan menunjukkan bahwa sebagian besar siswa memiliki tingkat kepuasan dan antusiasme selama pembelajaran Fonetik. Hasil penelitian menunjukkan bahwa pengajaran IPA membantu siswa mengenali dan melafalkan bunyi Bahasa Inggris. Perbedaan tingkat pemahaman siswa dan kesulitan dalam memahami fonetik adalah masalah yang diatasi melalui teknik interaktif. Studi ini menemukan bahwa pengaplikasian IPA dapat meningkatkan pelafalan siswa dan menciptakan fondasi Bahasa Inggris yang lebih kuat di tingkat dasar. Penelitian ini menunjukkan bahwa pembelajaran Fonetik menggunakan pendekatan IPA memberikan dampak signifikan terhadap pelafalan Bahasa Inggris siswa.
Analysis of Learning Volleyball Passing Skills at SMAN 1 Muara Sugihan
Authors: Anggraini Dia , Wardiah Dessy , Lanos Muhsana El Cintami
Published: December 2024

This study aimed to find out the results of teaching basic techniques of bottom passing in volleyball games to students of SMAN 1 Muara Sugihan. This study was quantitative descriptive. The population in this study was class X students at State High School 1 Muara Sugihan, with sampling using purposive sampling techniques, by paying attention to the criteria of students who understand basic techniques in volleyball, totaling 30 students. The data collection technique used in this study is a volleyball bottom passing skill test. The data analysis technique used descriptive statistical analysis techniques. The results of the data analysis conducted in the study showed that of the 20 students who participated in volleyball learning at State High School 1 Muara Sugihan, the students’ volleyball passing skills were in the sufficient category, with an average score of 40.50 and a percentage of 48%. It can be concluded that the skills in learning volleyball bottom passing in the students of State High School 1 Muara Sugihan were in the sufficient category, so there is a need for development in learning to pass under volleyball.
Olhares que des-con-figuram o o/abjeto corpo d’A Bruxa (2015) materializado em distensões do social
Authors: Passeri de Morais Rubia , Lara Renata Marcelle , Arnold Pesch Bruno
Published: December 2024

Through the interplay of gazes of and between subjects who tension family relations, de-stabilized by Christian-religious extremism in the film The Witch (2015), the subject-body Thomasin (protagonist) emerges as the object of analysis and is made into a witch body-effect, constitutively object of desire and abject, returning phantasmagoric images that haunt and estrange the familiar. In this essay, a materialist Discourse Analysis look at such interplay of gazes, intertwined with psychoanalytic studies and art image studies, is analytically mobilized by the device of the artistic as rending of the image, which seeks to comprehend, through such exchange of gazes, the discursivization of The Witch’s o/abject body materialized in social distensions. By interrogating how the o/abject witch body is materialized in such distensions, the gaze/being gazed at/by Thomasin, as a deviant body, produces rends upon the social imaginary, through the emergence of the formless that disturbs stability and/in its effects.
11. Februar 2025: Offenheit reicht nicht aus – Auf dem Weg zu einer lebendigen Datenkultur
Authors: Kindling Maxi
Published: December 2024

4. Veranstaltung in der Reihe „Quo vadis offene Wissenschaft in Berlin und Brandenburg“ am 11. FEBRUAR 2025

Termin:

11. Februar 2025, 14:00–15:30 Uhr

Ort:

Online via Zoom

Veranstaltende:

KOBV und digiS Es handelt sich bei dieser Veranstaltung um die vierte in der Reihe Quo vadis offene Wissenschaft in Berlin und Brandenburg 2024/25. Daten eröffnen neue Zugänge und
In fünf Schritten zur Open Science Policy
Authors: Neufend Maike
Published: December 2024

Aktuell verabschieden wissenschaftliche Einrichtungen immer häufiger Open Science Policies. Aber wie lässt sich der Policy-Prozess gestalten, welche Akteure sollten einbezogen werden und wie verhalten sich Open Science Policies zu anderen Policies im Bereich offener Wissenschaft?
Numerical model analysis of subgrade settlement with foam mortar reinforcement based on thickness variation
Authors: Jusi Ulfa , Pratikso P , Maizir Harnedi
Published: December 2024

Soft soils have low bearing capacity characteristics and can cause high settlement. Sub grade which becomes the lowest layer in road construction is expected to have a strong bearing capacity so that it can carry the construction load on it. To overcome this problem, it is necessary to reinforce it. Problems will arise if the thickness of the soft soil in the subgrade varies. So, it needs to know and identify the scale of declining that occurs if the soft soil variation is reinforced on it. Foam mortar is an alternative reinforcement that is expected to improve the properties of the soft soil. The purpose of this research is to analyze the soft soil embankment model using foam mortar reinforcement against variations in soft soil height. The method of analysis was carried out by numerical method of Plaxis 2D version 2023. The geometric model in this study with foam mortar thickness of 30 cm was varied against subgrade layer height of 60 cm, 120 cm and 180 cm. The modeled load is a centralized load with variations of 0, 10, 20, 40, 60, 80, 100 and 120 kN. Numerical results obtained the highest settlement occurred at 180 cm soft soil layer of 0.01421 mm. The largest deformation occurred in the soft soil layer of 1,461 x 10-3 mm. In conclusion, the thicker the soft soil layer, the higher the settlement and the greater the deformation.
The study of accuracy of an operator's perception of geometrical object sizes and shapes in the virtual environments
Authors: Tanryverdiev Ilya , Petukhov Igor , Steshina Luydmila , Steshin Ilya , Kurasov Pavel , Galkin Daniil
Published: December 2024

This paper is devoted to the experimental comparison of accuracy of an operator's perception of geometrical object sizes and shapes between the different conditions of information perception in the virtual environments and from the electronic displays. The experiments were conducted using a psychophysiological test for the accuracy of perceiving geometrical object sizes and shapes by an operator in the virtual environments and in the conditions of information perception from an electronic display. As a common metric of the accuracy of perceiving geometrical object sizes and shapes, an operator was offered to visually determine the object center of gravity. No significant differences in the measurement results of both the accuracy of perceiving geometrical object sizes and shapes and speed of this process were found based on the different methods of displaying the visual information to an operator.
Cơ chế giám sát quyền công tố ở Việt Nam
Authors: Lê Thu Hà
Published: December 2024

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Xây dựng đội ngũ cán bộ người dân tộc thiểu số trong thời kỳ đổi mới
Authors: Nguyễn Văn Thắng
Published: December 2024

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Tư duy đột phá của Đảng về chiến lược phát triển vùng Tây Nguyên
Authors: Nguyễn Văn Quang
Published: December 2024

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Xây dựng cơ chế pháp lý bảo đảm cho Nhân dân tham gia hoạt động phản biện xã hội
Authors: Trần Thị Cẩm Tú
Published: December 2024

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Quá trình hình thành và phát triển pháp luật về giám sát của Hội đồng nhân dân
Authors: Trần Thị Phượng
Published: December 2024

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Nâng cao hiệu quả phát triển kinh tế - xã hội của vùng đồng bào dân tộc thiểu số và miền núi tỉnh Ninh Thuận
Authors: Nguyễn Nhị Hà
Published: December 2024

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Mở cửa cấp độ cao từ góc nhìn chính sách và pháp quyền - kinh nghiệm của Trung Quốc và những gợi mở cho Việt Nam
Authors: Phạm Thị Ngọc Dung
Published: December 2024

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Adapting music education to the new normal: Integrative teaching strategies from a global perspective
Authors: Guo Yuchen
Published: December 2024

This study explores how music education can innovate through various integrative teaching strategies in the global “new normal”. Challenges and opportunities are identified. It highlights the need for educational reform and strengthening cultural identity in the post-pandemic world. By comparing global music education models, the positive role of cultural exchange in fostering diversity is examined. Based on the experimental findings, the study introduces “integrative teaching”, focusing on student-centered methods and interdisciplinary approaches. The experiment results show that integrating music with technology, language arts, and environmental science can enhance creativity, cultural understanding, and environmental awareness. In addition, practical examples are listed to demonstrate the effective use of virtual tools in addressing ecological issues through music creation. The study also underscores the importance of school-community collaboration and highlights successful case studies from Asia, Europe, and the U.S. How interdisciplinary strategies improve student learning outcomes are determined. More importantly, an evaluation framework focusing on diversified feedback and personalized assessments is established, proving that continuous feedback can enhance student engagement.
How Effective Are CFC Rules in Containing Tax Haven Activities?
Evidence from a Sample of European Firms
Authors: Rechbauer M. , Rünger S. , Sieghartsleitner B.
Published: December 2024

CFC rules differ widely across countries. This study examines whether the effectiveness of a CFC rule in containing tax haven activities depends upon these differences. It is based upon a sample of 93,377 parent firms from 32 European countries. The results show that a CFC rule is most effective in limiting tax haven activities if it either includes certain passive income or total income of low-taxed foreign subsidiaries in the tax base of the parent firm. Moreover, the effectiveness of a CFC rule increases if countries use a blacklist to identify low-taxed foreign subsidiaries. Exemptions, i.e. a safe-haven rule or an economic substance exemption, might reduce the effectiveness of a CFC rule. At the same time, however, they ensure that a CFC rule is not only an effective but also an adequate measure against tax haven activities. The results obtained in this study provide valuable insights for lawmakers as to how to design CFC rules so that they are most effective in protecting a country’s corporate tax base.
Sighvast och Silvester
Authors: Solling Daniel
Published: December 2024

This study shows how the Runic Swedish name Sighvast and the borrowed name Silvester and the Old Swedish name Silvast that emerged from it merge to one name during the late middle ages. Sighvast, and different names within a group of names around it, were more common in Sweden in the 14th century, but Silvester and Silvast became more common in the 15th century. At the end of the 15th century all the names in the name group around Sighvast except one, Sævast, ceased to be used as they merged with Silvast and / or Silvester. Only the name Sævast which emerged from Sighvast during the middle ages survived and is still in use in Sweden 2023 but to a very small extent.
Out of Office?
Authors: Özkan Beste Naz
Published: December 2024

Most of the organisations have started to challenge the remote working process after the pandemic. It is very important to keep the employees motivated and satisfied during remote work. In this sense, the organisational communication structure of a company plays a major role. But it is still questionable how computer-mediated communication affects employees’ motivation as a tool of organisational communication. The aim of this research is to examine computer-mediated communication as a tool of organisational communication on motivation and   satisfaction of employees in remote working processes. The applied methodology of this research  is in-depth interviews with remote workers for more than one year. According to the results, it can be stated that the motivation of remote working employees is usually dependent on the correct organisational communication structure. Since they always use computer-mediated communication to communicate with team members and managers, it is essential to have a correct organisational communication flow to build a healthy working atmosphere. As a conclusion, the present study mentions that organisations need to constitute the environment of satisfaction and motivation towards other team members and must try to create a trustable and comfortable communication flow through emerging communication technologies.
The Job That Calls My Name
Authors: Szabó Kincső
Published: December 2024

One of the main goals of a (young) job seeker is to find a job that offers a valuable opportunity in their career and that also satisfies the professional curiosity. One of the most frequently visited labour market platforms for this purpose are job advertising portals. Browsing through job advertisements is a much more complex process than it may seem at first sight: numerous studies show that a job advertisement is usually the first encounter between the employer’s offer and the expectations of the potential candidate. The primary goal of recruitment communication is to attract all job seekers who match the description in the advertisement, however, discriminatory references and implicit cues referring to one gender may be unconsciously coded into language, which therefore distorts equal application opportunity. The aim of this literature review is to synthetise the emergence, functioning and social implications of implicit gender references in job advertisements. The article introduces the topic through six main sections, broken down into theoretical components. The introduction is followed by a discussion of the gender gap at both national as well as international level, the basic principles of recruitment communication, the main explanatory theories of organisational behaviour, the effects of implicit gender references on the perceiver, and lastly, a discussion of gender linguistics is touched upon.
Discourse portraits of Instagram users
Authors: Skrynnik Yuliia
Published: December 2024

The findings from this qualitative study provide a comprehensive typology of Instagram users and elaborate their discourse portraits through analyzing Instagram posts, comments, and profiles. This study explores the ways in which Instagram users express themselves within the digital landscape. By analyzing the interplay between visual and textual elements, the semiotic mechanisms that users employ to convey their personal and social identities are uncovered. The discourse portraits of Instagram users are shaped by their choice of language, in particular, the selection of the appropriate role, time and space deixis reflecting the three types of Instagram users-creators, attractors and participants. Through the application of profiling method in linguistics and critical discourse analysis, this research identifies key themes and patterns in user-generated content, revealing how the identities are articulated on Instagram social media platform. This integrated approach allows for a nuanced understanding of how Instagram users construct and maintain their online identities. This investigation aims to enhance the understanding of the dynamic and performative nature of online identity in contemporary digital culture. The study also highlights the role of Instagram as a platform for social interaction and identity performance, where users navigate the tensions between self-expression and audience expectation. This paper contributes to the understanding of digital identity construction by demonstrating how the profiling method in linguistics provides a framework for analyzing the dynamic and complex ways in which users engage with and contribute to the evolving discourse on social media. Ultimately, this research underscores the importance of considering both linguistic and visual elements in the study of online communication and the construction of contemporary digital identities.
La protección de la mujer en el derecho laboral uruguayo
Authors: Pisón Artagaveytia Mariana
Published: December 2024

Este artículo tiene como objetivo examinar la protección otorgada a las mujeres en el contexto del derecho laboral uruguayo. Se utilizará la clasificación propuesta por Fernando Rey Martínez para distinguir entre las disposiciones normativas vigentes que promueven activamente la igualdad de género y aquellas que perpetúan estereotipos patriarcales y paternalistas, limitando a las mujeres a roles tradicionalmente considerados como débiles y asociados al ámbito doméstico, tales como la maternidad, las responsabilidades del hogar y el papel conyugal.
Tribunal de Apelaciones en lo Civil de 2.º Turno. Reflexiones sobre la cosa juzgada en reclamos de funcionarios públicos
Authors: Luque Parafita Claudia , Da Cuña Verdum Maria Amelia
Published: December 2024

La sentencia que se comenta ampara la excepción de cosa juzgada en relación con el reclamo salarial de uno de los actores —un funcionario público— a pesar de que faltan en el caso los presupuestos que exige la norma vigente a fin de configurar tal excepción. El fallo referido se aparta de la concepción tradicional de la triple identidad espejada de la cosa juzgada, afiliándose a la interpretación que flexibiliza dicha regla. En su mérito expresa el Tribunal actuante que la identidad de objeto y causa no requiere «una especie de imagen simétrica en espejo, sino que el objeto de un proceso haya sido decidido en otro, ya sea en forma total o parcial».
Dicha interpretación colide con el precepto de que la ley procesal debe aplicarse en conformidad con las disposiciones y principios constitucionales, y de forma tal, que se garantice una adecuada y efectiva tutela de derechos sustantivos.
En el caso de autos ello termina por traducirse en un incentivo al incumplimiento contumaz del Estado en su calidad empleador, en relación a reclamos por haberes salariales que se van generando como contrapartida de una prestación de trabajo sucesiva, y que tienen diferente fecha exigibilidad.
Screening the phytochemical components of Ruta montana L. for their inhibitory activity to reduce the progress of osteoarthritis: an in silico study
Authors: Abdelli Imane , Hassani Faiçal , Ghalem Sarra , Brikci Sohayb Bekkal , Nour Ihab Sid Ahmed , Chaparro Andrés Reyes , Belhadji Amina , Ghalem Mohamed El Hadi , Ferouani Abdelkarim
Published: December 2024

The species Ruta montana L. is well known for its medicinal characteristics. It is employed in traditional medicine where its constituent parts include a variety of physiologically active chemicals that give it its therapeutic potential. Our in silico research on the ligand molecules of R. montana L. shows the inhibitory efficacy of these compounds on the enzymes aggrecanase-1 (ADAMTS-4) and aggrecanase-2 (ADAMTS-5) responsible for the degradation of human articular cartilage in osteoarthritis. By using molecular docking simulation, the interaction between the ligand molecules of the plant researched and these enzymes was identified. These compounds scored higher in the in silico research of the components 2-Undecanol acetate, 2-Nonanol acetate, Nonan-2-one, Psoralen, and Undecan-2-one, corresponding to a larger inhibitory activity when compared to those of the commercially available medications for osteoarthritis.
The importance of berries of some invasive shrub species in the diet of birds in an urbanised habitat in South African grasslands
Authors: Kopij Grzegorz
Published: December 2024

Fruits play an important role as a source of diet for many bird species in southern Africa. In some areas, e.g., in the Highveld, planting of fruit trees and berries in urbanised areas may cause expansion of the population and the range of some frugivore birds. A study on birds feeding on fruits was carried out in an urbanised habitat in the Highveld. Out of 51 bird species recorded in the study area, four were found to feed regularly on berries of exotic tree/shrub species, namely Onychognathus morio, Pycnonotus nigricans, Zosterops pallidus, and Colius striatus. In the dry season, Pyracantha angustifolia was by far the most important in that regard (62.5%), followed by Melia azedarach (21.1%). Other exotic berry species were picked much less often. Birds fed on berries mostly in June, July and August, i.e., in the dry season (85% of recorded birds). Although berries were still available later, they were taken by birds only sporadically. This study suggests that, at least in grasslands and semideserts of southern Africa, planting fruit trees and shrubs in urbanised areas may contribute to the expansion of the range and/or the population increase of some frugivorous species.
Serological prevalence of the Coxiella burnetii infection in humans in the age group of 0–20 years in some regions of North Macedonia
Authors: Reçi Mije , Ferati Ismail , Miftari Hava
Published: December 2024

The aim of this study was to identify the seroprevalence of Coxiella burnetii in humans and to examine the variation of infection in females and males in the age group of 0–20 years in some regions of North Macedonia. Blood samples were collected from 142 random people from five regions. These patients were tested for antibodies against C. burnetii phase II antigen by enzyme-linked immunosorbent assay (ELISA). Positive test was based on the cut-off value, which in this case was over 0.5 optical density (OD). Of 74 female serums examined, seven samples resulted positive (9.45%), and of 68 male serums examined, five resulted positive (7.35%). In total, the infection percentage was approximate in both sexes; the differences depended on the regions. These findings on Q fever in humans can be used to improve the visibility of this zoonotic disease especially in North Macedonia, where very little information is available on C. burnetii infections. These findings will help local health authorities to focus on the origin of the problem and facilitate the application of preventive measures.
The Influence of Product Quality and Price on Customer Loyalty Through Brand Image as A Mediation Variable on Consumers Of "B_ERL COSMETIC" Products in Shopee Marketplace
Authors: Titis Tatasari  , Ahmad Rizki Sridadi  , Dian Ekowati
Published: December 2024

This study wants to find out how the quality and price of B_Erl Cosmetics affect whether customers keep buying their products on Shopee. This study used a numbers-based method to figure out how the variables are related. This study looked at 100 customers who use Shopee. The customers were all women who are at least 17 years old and have made at least 2 purchases on the B_Erl Cosmetic Shopee page. Collecting information in research using watching and asking questions. The tools we used to analyze data for our research were SPSS 26 software and Calculator Sobel Test to figure out the indirect effect. This research used a method called path analysis to analyze the data. The results we found showed that the quality and price of the product have some impact on how people see the brand. Also, the quality, price, and brand image have an effect on how loyal customers are to the brand. The quality of the product has an impact on customer loyalty through the brand image, and the price also has an impact on customer loyalty through the brand image.
INTERACCIÓN GENOTIPO X AMBIENTE EN MAÍCES NATIVOS DE SAN LUIS POTOSÍ, MÉXICO
Authors: Ramírez-Córdova Ana Laura , Delgado-Sánchez Pablo , Martínez-Sánchez Jesús , Guerrero-González María de la Luz
Published: December 2024

El maíz nativo presenta una gran diversidad genética, dicha diversidad ha sido de suma importancia y base del mejoramiento genético para la resistencia a sequía, pero los estudios se han concentrado en la zona del sureste del país. El presente tuvo como objetivo evaluar las características morfológicas de 55 poblaciones de maíz nativo del estado de San Luis Potosí, evaluar la interacción genotipo x ambiente y la estabilidad en el rendimiento de grano bajo condiciones de temporal estricto. Se establecieron dos parcelas experimentales, la primera en Facultad de Agronomía y Veterinaria de la Universidad Autónoma de San Luis Potosí y la segunda en la localidad de Los Cerritos, municipio de Ahualulco, bajo un diseño de bloques al azar con dos repeticiones. En la localidad de Los Cerritos se tuvo una mejor expresión fenotípica por lo cual se utilizó para la caracterización morfológica, mientras que la variable rendimiento se analizó con un análisis de varianza combinado y posteriormente se aplicó el modelo de regresión en los sitios (SREG) para estudiar la interacción. La estabilidad fue modelada utilizando la gráfica GGE biplot. El análisis de varianza para la caracterización morfológica presentó diferencias altamente significativas para todas las variables. La evaluación de interacción genotipo x ambiente mostro que las poblaciones 5, 665 y 438 fueron las más estables y con el mayor rendimiento de grano.
ALKALI ALCOHOLYSIS OF 2-PHENYL-gem-DICHLOROCYCLOPROPANE UNDER MICROWAVE RADIATION CONDITIONS
Authors: Borisova Yulianna G. , Musin Airat I. , Voinov Viktor A. , Spirikhin Leonid V. , Raskil’dina Gul’nara Z. , Sultanova Rimma M. , Zlotskii Semyon S.
Published: December 2024

By alkaline alcoholysis of 2-phenyl-gem-dichlorocyclopropane, α-phenylacrolein acetals were synthesized under microwave irradiation (MWI) conditions: [1-(diethoxymethyl)vinyl]benzene, [1-(di-propyloxymethyl)vinyl]benzene, [1-(di- iso-propyloxymethyl)vinyl]benzene, [1-(dibutoxymethyl)vinyl]benzene, [1-(di-iso-butoxymethyl)-vinyl]benzene, {1-[bis(1-methylbutoxy)methyl]vinyl}benzene, [1-(dially-loxymethyl)vinyl]benzene, 1,1-[(2-phenylprop-1-en-3,3-diyl)bis(oxymethylene)]dibenzene. It was found that microwave radiation reduces the synthesis time by 70%, while the yield is more than 80%, and the selectivity of acetal formation is more than 90%. Using the method of competitive kinetics, it was established that primary alcohols such as ethanol, propanol and butanol are similar in activity. The structures of the obtained compounds were studied using nuclear magnetic resonance (NMR) and chromatography-mass spectrometry methods. The formation of acetals is proven by the presence of signals from the quaternary carbon atom in the region δс 142.35-146.49 ppm, and a doublet signal from protons at δн 5.01–5.71 ppm. and a singlet signal of the proton of the methine group in the region at 4.89-5.50 ppm. Analysis of the mass spectra of acetals showed the presence of maximum intensity of oxonium ions, due to α-, β-break relative to the oxygen atom. For the obtained acetals, the presence in the mass spectra of [M-H]+ cations, formed as a result of the release of a hydrogen radical from a molecular radical ion, was recorded. The peaks of [M-R]+ and [M-H]+ ions were inferior in intensity to [M-RO]+ cations. Most likely, this is explained by the stability of the [M-RO]+ cations relative to [M-C6H5C2H2]+ and [M-H]+, as well as the ease of eliminating RO• from the alkoxy group. In addition, for acetals of this type, the formation of a radical cation with m/z = 132 was observed, resulting from the release of the R radical from the second alkoxy group. Also, the mass spectra of acetals were characterized by the presence of a cation m/z = 77 and an intensity of 29-80%.
Borisova Yu.G., Musin A.I., Voinov A.V., Spirikhin L.V., Raskil’dina G.Z., Sultanova R.M., Zlotskii S.S. Alkali alcoholysis of 2-phenyl-gem-dichlorocyclopropane under microwave radiation conditions. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 11. P. 15-21. DOI: 10.6060/ivkkt.20246711.7046.
ASSESSMENT OF THE IMPACT OF A SLUDGE RESERVOIR FOR IRON-CONTAINING WASTE ON ENVIRONMENTAL COMPONENTS
Authors: Izvekova Tatyana V. , Gusev Grigory I. , Gordina Natalia E. , Sitanov Roman D. , Gushchin Andrey A.
Published: December 2024

The paper presents the results of the environmental impact assessment of the sludge pond for iron-containing waste generated as a result of the economic activities of the Zavolzhsky Chemical Factory located in the Ivanovo Region. In 2020, the sludge pond was included in the state register of objects of accumulated environmental damage. The accumulated sludge, with a volume of about 31 thousand m3, is a spent catalyst generated as a result of diphenylamine production. The main components of the waste are iron (III) oxide, silicon oxide and water, the total content of which is 95%. Heavy metals are also present in trace amounts - organic compounds, copper, nickel, zinc and chromium. The research assessed the quality of atmospheric air, the state of surface and groundwater, as well as the soil cover and soils on the territory of the site where the sludge pond is located. The assessments showed that the main negative impact is on the soil cover, groundwater and river Volga, flowing 185 m from the location of the object. To establish the quality of water in the Volga River, the hydrochemical index of water pollution was used, the value of which exceeded 10, i.e. the Volga River (in the area of the city of Zavolzhsk) according to the class and assessment of water quality belongs to the extremely dirty. In the area of the location of the object in the Volga River, there is an excess of heavy metals by 2-7 times compared to the background sample taken in the control section upstream. The quality of groundwater in the survey site does not meet environmental standards and varies from an emergency environmental situation to an environmental disaster zone. The value of the total indicator of chemical pollution of soils and grounds relates the studied area to the category of soil pollution as a high level of pollution (risk for the resident population).
For citation:
Izvekova T.V., Gusev G.I., Gordina N.E., Sitanov R.D., Gushchin A.A. Assessment of the impact of a sludge reservoir for iron-containing waste on environmental components. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 11. P. 145-153. DOI: 10.6060/ivkkt.20246711.7140.
NEW BIARYL DERIVATIVES OF DICLOFENAC DRUG: SYNTHESIS, MOLECULAR DOCKING AND THEIR BIOLOGICAL ACTIVITY STUDY AS ANTICANCER AND ANTIOXIDANT AGENTS
Authors: Abdul-Rida Nabeel A. , Mohammed Kawther T.
Published: December 2024

In this work, a series of diclofenac derivatives were synthesized via the Suzuki-Miyaura reaction and evaluated in vitro as anticancer and antioxidant agents. Structures of synthesized compounds were characterized by FT- IR, 1H NMR, 13C NMR spectra, and elemental analysis. The products have been screened in vitro for their anticancer activity against both cell lines HdFn and MCF-7 as well as they were investigated for their antioxidant activity. The cytotoxicity assay results revealed that derivatives 3a and 3d exhibited good inhibition for cell lines MCF-7 with IC50 values 33.1 and 38.2 µM, respectively while 3a and 3c exhibited acceptable inhibition for HdFn with IC50 values 68.7 and 72.6µM, respectively compared to the Tamoxifine drug. Molecular docking study of the target compounds confirmed the results of the cytotoxicity test. In addition, results of the DPPH investigation revealed good antioxidant activity for derivatives 3a, 3c and 3d with inhibition percentages of 83.14, 82.42, and 78.16%, respectively compared to ascorbic acid.
For citation:
Abdul-Rida N.A., Mohammed K.T. New biaryl derivatives of diclofenac drug: synthesis, molecular docking and their biological activity study as anticancer and antioxidant agents. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 12. P. 47-53. DOI: 10.6060/ivkkt.20246712.7071.
MOLECULAR COMPLEXES BASED ON para-ALKYLSULFONIC ACIDS AND PYRIDINE DERIVATIVES: STRUCTURE AND MESOMORPHIC PROPERTIES
Authors: Fedorov Mikhail S. , Filippov Alexander A. , Syrbu Svetlana A. , Kiselev Mikhail R.
Published: December 2024

The paper presents the results of theoretical and experimental studies of new mesogenic molecular complexes based on 4-alkylsulfonic acids and 4-pyridyl-4'-n-alkyloxybenzoates. Using quantum chemistry methods (DFT), the structural units of the systems under study, which are hydrogen-bonded complexes, were modeled. The relationship between molecular parameters, electronic effects of substituents, gas-phase acidity and characteristics of the formed H-complexes is shown. Electron-donating alkyl substituents in the para-position of benzenesulfonic acid reduce gas-phase acidity compared to the unsubstituted molecule, enhancing the electron-withdrawing properties of the sulfo group. The type and potential barrier of the calculated potential functions of proton transfer from the sulfo group to the pyridine fragment in the molecular complexes under study allowed us to conclude that gas-phase acidity directly determines the characteristics of this process. It was found that para-alkyl-substituted benzenesulfonic acids form stronger hydrogen bonds in proton transfer complexes compared to unsubstituted benzenesulfonic acid. The synthesis of three samples of molecular complexes of 1:1 composition was performed (4-methylbenzenesulfonic acid : 4-pyridyl-4'-n-dodecyloxybenzoate, 4-ethylbenzenesulfonic acid : 4-pyridyl-4'-n-heptyloxybenzoate, 4-ethylbenzenesulfonic acid : 4-pyridyl-4'-n-dodecyloxybenzoate). IR spectra recorded at room temperature showed that the systems under study are H-complexes with proton transfer from the sulfo group to the pyridine fragment with an intermolecular hydrogen bond of the N–H∙∙∙O type. It was determined that all H-complexes have enantiotropic mesophorism, as evidenced by DSC and polarization thermomicroscopy data. The recorded mosaic textures in a polarizing microscope suggested that the samples under study had a smectic type of mesophase. It has been shown that the temperatures of phase transitions from the mesophase to the isotropic liquid phase depend on the length of the alkyl substituents in the components of the complexes, which may be a manifestation of the odd-even effect.
For citation:
Fedorov M.S., Filippov A.A., Syrbu S.A., Kiselev M.R. Molecular complexes based on para-alkylsulfonic acids and pyridine derivatives: structure and mesomorphic properties. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 12. P. 64-72. DOI: 10.6060/ivkkt.20246712.7094.
Caracterización física, química y funcional del fruto de cuatomate (Solanum Glaucescens Zucc) en dos estados de madurez
Authors: Romero Cruz Anabel , Vidals Flores Rosa Isela , López Aranda Erika , Luna Esquivel Narciso , Escamilla Ramírez Rosalinda
Published: December 2024

El cuatomate es un fruto muy apreciado en la dieta de los pobladores de la mixteca baja poblana. El presente estudio se realizó con el objetivo de evaluar las propiedades físicas, químicas y funcionales del fruto de cuatomate (Solanum glaucescens Zucc) en dos estados de madurez para estimar su valor nutricional y funcional. Se determinó peso, diámetro polar y ecuatorial, pH, acidez titulable, humedad, proteína, lípidos, cenizas, fibra cruda y carbohidratos.  El valor funcional se cuantificó determinando fenoles, flavonoides y actividad antirradical frente al radical DPPH.
Se utilizó un diseño factorial completamente al azar. 
Los resultados muestran diferencia significativa en peso (p= 0.025), frutos en estado de madurez verde presentaron mayor peso, no así para diámetro polar, ecuatorial y número de semillas.
Los frutos maduros presentaron mayor porcentaje de proteína (4.733 %), grasas (1.786 %), cenizas (5.403 %), carbohidratos (1.939 %), acidez (0.0503 %) y SST (1.566 °Brix), mientras que en frutos verdes presentó mayor porcentaje en fibra cruda (4.447%) y pH (5.857).
Existen diferencias significativas de las propiedades funcionales debido al estado de madurez entre los frutos, los cuatomates verdes presentaron un contenido mayor de fenoles (418.57 ± 2.74 mg EAG/100 g de muestra seca). En cambio, el contenido de flavonoides para cuatomate verde fue menor (1162.3 ± 31.7 mg EQ/100 g de ms) que en estado maduro de 2676.8 ± 6.78 mg EQ/100 g de ms. Sin embargo, mayor actividad antirradical DPPH se encontró en cuatomate verde, ya que solo se requiere 12.883 ± 0.503 mg de cuatomate verde para reducir el 50% de la actividad antirradical DPPH con respecto a los cuatomates maduros (97.450 ± 1.105mg). Los resultados obtenidos indican que los frutos del cuatomate proveen propiedades nutricionales y funcionales significativas que pueden ser utilizados para enriquecer alimentos y bebidas.
Simulación de un recorrido en bicicleta para niños con síndrome de down, utilizando realidad virtual no inmersiva
Authors: González Encinas Julio Alberto , Serna Encinas María Trinidad , Galaz Bustamante Rafael Armando , Gutiérrez Urquidez Rosalía del Carmen
Published: December 2024

El síndrome de Down es una condición genética, caracterizada por la presencia de material extra en el cromosoma 21 en las células somáticas. En México, esta alteración genética afecta a 1 de cada 650 nacimientos, y provoca dificultades en el desarrollo de las habilidades motoras, complicando la realización de actividades físicas diarias. Esto genera la necesidad de implementar estrategias basadas en tecnologías avanzadas, para apoyar a los niños con esta condición en su desarrollo motor. El presente trabajo propone un sistema diseñado para CRIT (Centro de Rehabilitación e Inclusión Infantil Teletón) Sonora, cuyo objetivo es simular un recorrido en bicicleta dirigido a niños con síndrome de Down, con el propósito de incentivar la actividad física de manera entretenida. El sistema utiliza tecnología de realidad virtual no inmersiva, permitiendo que los niños experimenten un paseo virtual, mientras utilizan una bicicleta estacionaria adaptada. Esta experiencia ofrece estímulos visuales y sensoriales, que motivan una participación más activa y divertida en las actividades físicas. El proyecto abarca desde la conceptualización hasta la implementación del sistema, incluyendo diagramas del análisis y diseño, modelo de datos del sistema y la arquitectura del sistema propuesto. Se detallan también las metodologías y procesos empleados en la realización del proyecto, integrando tanto el desarrollo de software como del hardware necesario, así como las pruebas de funcionalidad del sistema.