bluuebunny/crossref_metadata_2025 huggingface dataset:
Intricate nexus of FDI, remittances, emigration, tourism and growth: Navigating economic landscape of Croatia
Authors: Nikšić Radić Maja , Bogdan Siniša
Published: September 2024

Research background: In Croatia, a small-open and growing economy that lags behind more developed countries, globalisation has had a considerable impact on economic stability. The globalised world economy, characterised by international trade, capital flows and migration, has strongly influenced the economic landscape of Croatia. Although foreign direct investment (FDI) and remittances are fuelling economic growth, emigration poses a major challenge. In addition, the vital tourism sector in Croatia emphasises these relationships and can increase overall economic prosperity.
Purpose of the article: The main purpose of this study is to analyse the causal relationships between FDI, remittances, emigration and economic growth in Croatia. In addition, it examines the causal relation between FDI, remittances and tourism growth. Moreover, this study examines the relationships between emigration and FDI, as well as emigration and remittances.
Methodology: This study adopted a methodological approach that includes time series analysis and panel data analysis to consider the complexity of this issue in more detail. Specifically, the study applied a two-pronged approach such as time series analysis to investigate the causal relationships between FDI and emigration, FDI and tourism growth, remittances and emigration as well as remittances and tourism growth. In parallel, panel data analysis devoted itself to analysing the subtle inter-relationships between FDI, remittances, emigration and their combined effects on economic growth using the same methodological approach.
Findings & value added: Key findings show several causal relationships in the Croatian context: emigration substantially affects FDI, remittances influence emigration patterns, a bidirectional causal relationship exists between FDI and tourism growth and tourism growth boosts remittance flows. FDI boosts economic growth in Croatia, which, in turn, causes the flow of remittances and patterns of emigration. The importance of this study lies in highlighting the potential significance of FDI and remittances, as well as the crucial role of tourism in Croatia while emphasising the potential threat posed by emigration to the Croatian economy. These findings provide a crucial framework for policymakers to design targeted strategies that navigate these inter-connected factors, ensuring sustainable economic growth in similar small, growing economies worldwide.
Factors influencing the choice to declare CSR reporting stand-ards: Evidence from Baltic public companies
Authors: Aleknevičienė Vilija , Juočiūnienė Dalia , Zinkevičienė Danutė
Published: September 2024

Research background: Recently, companies have been increasingly focusing on social responsibility and disclosure. They use a variety of standards to disclose their social responsibility. The prevalence of these practices varies between companies in different countries. In addition, some companies declare CSR reporting standards, while others do not. Stakeholders need to know the characteristics of companies that declare CSR reporting standards.
Purpose of the article: This study aims to reveal the factors influencing the choice to declare CSR reporting standards in Baltic public companies.
Methods: The choice to declare CSR reporting standards is measured by the fact of CSR reporting standards’ declaration and the choice of GRI. The data for dependent variables are collected from non-financial reporting of Baltic public companies by making the content analysis. Company visibility, financial performance, and market expectations are chosen as independent variables. Their data is obtained from the Bloomberg database. Logistic regression models are applied.
Findings & value added: Only half of the companies surveyed disclosed the CSR reporting standards used. Estonian public companies prefer GRI standards, and Lithuanian public companies prefer GRI plus UNGC. CSR reporting standards tend to be declared by those public companies that are larger and operate in the “heavy industry” as well as have higher EPS and lower ROA and CAPI. Market expectations are irrelevant to the disclosure of CSR reporting standards. By contrast, GRI standards are used and disclosed by public companies with the same characteristics as those declaring the standards. Still, in this case, age and market expectations are also important factors. Younger and higher market-value companies tend to choose GRI standards. These results reflect managerial behavior based on legitimacy, stakeholder, and signaling theories. Our findings are important to investors, market regulators, policymakers, managers and shareholders.
Narrativization in the genre of Internet commentary in social networks communication
Authors: Romantovskiy Alexander Vladimirovich
Published: September 2024

The article analyses the uneven application of communicative tactics of narrativisation in the genre of Internet commentary on the post of a thematic community in a social network. The terminological apparatus of linguosynergetics (openness and non-equilibrium of the system, attractor, fluctuations, etc.) and discourse analysis of the Internet commentary undertaken in the author's PhD thesis (a model of 3 communicative and semantic components - immediate-reactive, interpretive-evaluative, modal-resulting) are used as a methodological basis. Some regularities of inclusion of personal and everyday user narrative into the standard communicative and semantic blocks inherent in the discourse of commenting are shown. In particular, it is found that an initial post constructed as the beginning of a narrative familiar to users has a greater potential to generate comments built on the basis of narrativisation tactics. On the contrary, a post lacking such a communicative-tactical basis is accompanied by comments with a personal-narrative only at the second level of commenting - when a discussion between users occurs. Short initial posts in social media communities are becoming the norm, as they fit on the screen of any gadget without scrolling. At the same time, the information message contains a sufficient number of semantic attractors to stimulate discussion. It is Internet comments containing extended narratives that become the content centres of the whole system "post - comment block", the centres of coherence of this digital format of communication.
Morfometría de la cuenca del río Areco, Provincia de Buenos Aires, Argentina
Authors: Zanandrea Juan Francisco , Gaspari Fernanda J. , Perdomo Santiago , Laurencena Patricia
Published: September 2024

El análisis morfométrico de una cuenca hidrográfica consiste en el estudio de sus características geométricas y topográficas, tales como el área, la forma, la red de drenaje, la jerarquía de los cursos de agua y el relieve. Estos parámetros permiten evaluar el comportamiento hidrológico superficial y su vulnerabilidad frente a fenómenos naturales como fuertes crecidas que pueden derivar en inundaciones, conformando una herramienta básica para la modelación hidrológica. El objetivo del trabajo fue caracterizar y analizar morfométricamente la cuenca hidrográfica del río Areco, Argentina. La metodología fue la determinación de parámetros de forma, de drenaje y de relieve con base geoespacial, aplicando teledetección, con el sistema de información geográfica QGIS 3.28 Firenze, en conjunción con complementos estadísticos y planillas de cálculos. Los resultados alcanzados expresan un área total de 3.994,57 km2, perímetro de 439,06 km, longitud máxima de 110,80 km y ancho medio de 36,05 km. Estas características expresan que la cuenca posee forma ligeramente alargada según el Factor Forma (FF= 0,33), en coherencia con el coeficiente de Gravelius que indica forma rectangular-oblonga (Kc= 1,96). El río Areco posee un orden de drenaje de grado 5, una longitud máxima del curso de agua de 135,14 km, con una densidad de 0,31, una frecuencia de 0,06 y una pendiente del cauce 0,00035 m/m, alcanzando un tiempo de concentración de 62 h según la metodología Kirpich. La descripción morfométrica lograda conforma un análisis geoespacial cuanti-cualitativo de la cuenca, definiendo parámetros para la modelización hidrológica que apoye a la planificación y gestión hídrica-ambiental.
The seasonal changes of heavy metal content as limiting factor of sewage sludge re-use as fertilizer ingredient, based on data from WWTPs in Poland
Authors: Kacprzak Małgorzata J. , Bauman-Kaszubska Hanna , Wójcicka Karolina
Published: September 2024

In Europe, half of the amount of sewage sludge from wastewater treatment plants (WWTPs) is used in agriculture, in Poland about 27%, respectively. Fertilizing products (compost or organic-mineral fertilizers) produced from sewage sludge are promise alternative for directly use of no-treated waste. The paper presents seasonal changes of Cu, Pb, Ni, Zn, Cr, Cd and Hg content in sewage sludge from different regions of Poland collected during one year. It was noted wide range of the metal amount in dependence on season andWWTPs capacity. The Cu concentration was from 0.4 to 784 mgkg–1 d.m., Ni from 0.25 to 1281 mgkg–1 d.m., Cd from 0.005 to 14.85 mgkg–1 d.m., Pb from 0.11 to 306.2 mgkg��1 d.m., Hg from<0.001 to 2.3 mgkg–1, Cr from 0.23 to 854 mgkg–1 and Zn from 11 to 4669 mgkg–1, respectively. It has been shown that Cu, Cd, Pb, Hg and Cr content did not exceed the permissible levels for agricultural purposes according to Polish law. There was no clear correlation between the heavy metal amount and the WWTP capacity, expressed as population equivalent (PE). However some increase trend in the case of Cu, Ni, Hg and Cr concentration at the higher PE value was found. It has been concluded that in spite relatively low level of heavy metals in Polish WWTPs, it may be limiting factor for production high quality fertilizers on the base of sewage sludge.
Written Standardisation of Nahuatl Aimed at the Generation of Reading and Learning Resources
Authors: Zúñiga Elizalde O. A.
Published: September 2024

This paper proposes an alphabet that can be standardized for writing the Nahuatl language in Mexico. Due to the extensive alphabetic dialectal diversification, each Nahua population writes its variety in a unique way, so there is no written consensus on the language as such, making it difficult to generate academic and other resources for teaching and learning it and even for access to basic services such as public healthcare. A compendium of resources is presented, composed of samples from the writing of diverse Nahua communities and from the institutionalized variety, which went through an evolution across the viceregal colonial period that spans from the sixteenth to the nineteenth century, until Mexico’s independent existence from the Spanish crown. Subsequently, a comparative analysis of their spellings and the relationship they have with phonetics is carried out to finally generate a standardizable writing alphabet. Only certain aspects of the dialectal varieties present in communities, municipalities or regions, ranging from the Mexican state of San Luis Potosí to Tlaxcala, are mentioned, and their crucial elements are taken for their harmonization with the historically institutionalized writing form, without delving deeply into each alphabetic dialectal variety because of how extensive this would be, apart from this not being necessarily aligned with the purposes of the project in the making. By combining graphic elements of the varieties mentioned here, an alphabet capable of being understandable both in Nahua communities and in the academic environment is proposed, facilitating the study of Nahuatl both among people who are beginning to learn it and those who speak it partially, as well as anyone seeking to complement their knowledge.
Constructed Languages: A Chronological Description
Authors: Petrov P.
Published: September 2024

This paper is devoted to the problem of the diversity of “artificial” or constructed languages. The aim of the work is to reveal in-depth the diversity of communication systems developed to varying degrees, as well as to find an answer to the question: what prompted people to create new languages? The author analyzes various types of invented languages, from international universal language projects to secret languages of closed communities, as well as fictional languages used in literature and common languages for use among kindred peoples. The material for the study is numerous examples from research linguistics articles and monographs. Instead of a detailed classification, the work uses the chronological order of the appearance of language projects, regardless of the place of their creation or the identity of the inventor. The chronological presentation of the material allows one to see the big picture. Special attention is paid to little-known projects that are not mentioned or poorly described in the literature on interlinguistics. Using the encyclopedic work of Alexander Dulichenko, International Auxiliary Languages (1990), as a starting point, the author significantly expanded the scope of constructed languages, not limited only to international projects, and supplemented the proposed list. In addition, this paper analyzes some phenomena that were mistakenly included in the list of constructed languages. The main result of this study is a list consisting of several hundred different communication systems described in the author’s unpublished book and partly presented here. The abundance of examples helps to understand the problem initially posed. The author has identified several motivating factors for the creation of new languages: the desire for communication; facilitating communication between native speakers of different languages; use in literary works; linguistic and philosophical research; communication in closed communities, etc. This work is complemented by examples of numerals from various pasigraphies (universal writing systems).
THE MANTRA OF “DARE TO FIGHT" AS A CONFUCIAN VALUE IN XI’S FOREIGN POLICY
Authors: Aurelia Angel
Published: September 2024

Confucianism is a philosophy and belief system that has deeply influenced Chinese culture. As the time goes by, China is still embodies Confucian values in its political moves. One significant move is on their newest foreign policy mantra with the point “Dare to Struggle “which differs from Deng’s mantra and more diplomatic. This research uses quantitative analysis with descriptive method to describe how China still uses Confucianism in their political move. “Dare to Struggle “ point has matched with Yi  and Zhi values.
The Role of Marketing in the Management of Health Services: the Case of the Madalena Clinic Group
Authors: Morão António , Brito Carlos , Nogueira Sónia , Dias Rui , Galvão Rosa
Published: September 2024

Objective: The main objective of this study was to analyse the role of internal marketing in managing health services in the Clinicas de Santa Madalena (CSM) group.
 
Theoretical Framework: Internal marketing is a management strategy aimed at motivating and involving employees, aiming to improve the performance and quality of services, which positively impacts customer satisfaction.
Method: It uses a qualitative methodology based on a case study and semi-structured interviews at six clinics in the Santa Madalena group.
 
Results and Discussion: The main results indicated that: i) information campaigns, promotion of oral health programmes and the creation of positive experiences are common internal marketing practices; ii) training actions, internal communication, and the involvement of professionals contribute to the integration and retention of employees; iii) team motivation and integration are critical factors for the quality of the services provided; and iv) dimensions such as reliability, responsiveness, trust, courtesy, competence and tangible elements influence patients' perception of quality.
 
Conclusion: The study recommends further research into internal marketing in the health sector, with collaboration between academia and companies.
Sentidos y usos de las “representaciones discursivas”: una revisión en los estudios del discurso
Authors: Nuñez María Laura
Published: September 2024

El concepto “representaciones discursivas” ha sido utilizado en varias disciplinas, sobre todo en trabajos realizados en el seno de los Estudios Críticos del Discurso, aunque no ha recibido un tratamiento exhaustivo y sistemático. Desprendido de la teoría de las representaciones sociales y vinculado a la materialidad lingüística, resulta imprescindible precisar sus sentidos y usos que diferentes analistas le han otorgado con el propósito de formalizar un estado de la cuestión. Para ello, el artículo recorre el origen y desarrollos principales del concepto de las representaciones discursivas, revisa algunas de las aproximaciones recientes a la noción, expone y discute los resultados y, por último, bosqueja algunas conclusiones. Los principales hallazgos elucidan que los estudiosos utilizan las representaciones discursivas en vinculación con las sociales de diferentes maneras; y evidencian, como objetivo común a las investigaciones, que la noción estudiada permite comprender los marcos de referencia para comprender la realidad.
DIVULGAÇÃO CIENTÍFICA NO MUSEU DA AMAZÔNIA: POSSIBILIDADES PARA O ESTUDO DA BIODIVERSIDADE EM AMBIENTES DE ENSINO NÃO FORMAL
Authors: Barros Alessandra , Souza Luciane , Freitas Silvia Regina Sampaio
Published: September 2024

Este manuscrito se situa em um contexto descritivo e exploratório, abordando os temas da biodiversidade, divulgação científica e espaços de ensino não formal, com ênfase no potencial do Museu da Amazônia como local promissor para atividades colaborativas no Ensino de Ciências. Especificamente, foi utilizada uma das sete trilhas do museu como cenário da pesquisa, que adotou uma abordagem qualitativa com a técnica de diário de campo. Ancorando-se nos fundamentos teóricos pertinentes, destaca-se a importância do Museu da Amazônia como espaço não formal de aprendizagem, ressaltando a necessidade de sua inclusão na dinâmica de ensino-aprendizagem como parte integrante do currículo formal.
Experimental Study for Enhancement of Water Flow in Horizontal Pipelines by Using Nanoparticles of Zinc Oxide and Poly Acrylic Acid
Authors: Dhiaa Asmaa H. , Shubbar Sawsan D. A. , Mahdi Fouad Kadhim , Mahmoud Khaleda Abdullah , Diwan Abbas Ali
Published: September 2024

Process industries need to move fluid over long distances in pipes of various capacities, consuming a lot of energy and raising the cost of establishing and maintaining pumping stations. Therefore, additives were used to reduce such costs and overcome fluid resistance. This work used Poly Acrylic acid (PAA) added to the water at different concentrations of 100, 200, 300, 400, and 500 ppm. This work used rough pipes (P.V.C. covered in sand) of different diameters, i.e.,  17, 23, and 26.5 mm, to experiment. After that, the 500 ppm of (PAA+ water) solution was mixed with 0.3% and 0.6% Zinc Oxide Nanoparticles (ZnO) at different flow rates, i.e., 44.2, 40, 35.9, 31, 26.2, and 20.8) l/min at 25 °C The effect of polymer, nanoparticle concentrations, flow rate, and diameter on percentage drag reduction (%Dr) and friction factor was investigated. The results showed an increase of percentage drag reduction % Dr was observed as NP concentration and bulk velocity increased. The drag reduction enhancement was 47% at 0.6% ZnO NP concentration with 500 ppm of PAA solution at a 44.2 l/min flow rate and a diameter of 17mm. The experimental data were also used to calculate the friction factors. The results showed a decrease in friction factors when using a 500 PAA solution: 37% and 54% for 0.6% ZnO NP with the solution.
Residual Strength of Concrete Beams Reinforced with GFRP Bars Exposed to Elevated Temperatures
Authors: Abdullah Ali N. , Kassim Muayad M.
Published: September 2024

The results of an experimental work to explore the effect of elevated temperatures on load resistance of reinforced concrete beams with glass fiber-reinforced polymers (GFRP) bars are reported in this paper. Twenty beams with cross-sectional dimensions of (120 x 200 x 1600 mm) were designed. Two specimens were evaluated at room temperature as reference beams, while the remaining eighteen were treated to high temperatures (200, 400, 600, and 800 °C) for 30, 60, and 90 minutes before being subjected to a similarly increased four-point load-up to the failure. The influence of raised temperature on load-deflection relationships as the failure modes for tested beams was examined and compared to a control beam. Compression failure is the most frequent failure mechanism in all the analyzed GFRP beams before and after exposure to high temperatures, according to the experimental test data. However, as the temperature and exposure time increased, the failure mode shifted from compression to balance and tensile failure. The beam heating was done under elastic loading, making these results unique. After 60 minutes of exposure to temperatures of 200, 400, 600, and 800 ⁰C, the residual loading capacity of heated beams was reduced by 13%, 17.39%, 32.6%, and 41.3%, respectively, compared to the control beam.
High-frequency ultrasonography for the detection of subclinical arthritis in chronic plaque psoriasis patients – A cross-sectional study
Authors: Vendhan Senkadhir , Vasudevan Biju , Rai Roma , Neema Shekhar , Krishnan Lekshmi Priya , Kamboj Parul
Published: September 2024

Background

Psoriatic arthritis (PsA) is seen in almost 30–40% cases of psoriasis. Psoriasis precedes the onset of PsA in 85% of cases. Delay in the diagnosis of PsA may lead to poor functional outcomes and morbidity. Screening psoriasis patients with high-frequency ultrasound helps to diagnose arthritis at an early stage leading to prompt intervention and possible reduction in the morbidity associated with the disease.

Objectives

To determine the role of high frequency ultrasonography (USG) in the detection of subclinical PsA.

Methods

A cross-sectional study was conducted in a dermatology and radiology department of Armed Forces Medical College, Pune between July 2021 and December 2022. Patients of chronic plaque psoriasis with no clinical evidence of arthritis were assessed using high-frequency USG. Various parameters such as bony erosions, synovial thickening, tendon thickening, tendon hypo-echogenicity, calcifications and power doppler signals were assessed.

Results

A total of 117 patients were included in the study. The distal interphalangeal joint (DIP) and Achilles tendon were the most commonly affected sites. Synovial thickening in DIP was observed in 67 (57%) patients and Achilles tendon thickening was observed in 39 (33%) patients.

Limitations of the study

The cross-sectional nature of the study is the major limitation. A longitudinal study will be required to understand the clinical relevance of ultrasonographic changes in these patients. Another limitation of the study is the lack of age and gender-matched controls. Future research should include such controls to ensure more accurate results.

Conclusion

Subclinical arthritis is common in patients with chronic plaque psoriasis. High-frequency ultrasound is a useful tool for detecting subclinical synovitis and enthesitis in asymptomatic patients. The DIP joint and Achilles tendon ultrasound can be used for screening for early detection of PsA.
Antioxidants: Oral health and diseases
Authors: Khurdal Ankita Shriram , Mani Shubhangi , Toshniwal Nandlal G. , Manerikar Ravindra , Mishra Sumeet
Published: September 2024

An antioxidant molecule can inhibit oxidations and free radicals’ harmful activities. Numerous varieties of antioxidant items are available in the market, and they can originate from various sources such as minerals, vitamins, or dietary and botanical supplements. In advanced nations, the utilization of antioxidants has become prevalent. Just like in all branches of medicine, the utilization of antioxidants is rising. Antioxidants can serve as a valuable addition to the treatment of oral conditions such as periodontitis or gingivitis by assisting in halting their progression. Extensive research has been conducted to investigate the characteristics of antioxidants, aiming to comprehend their underlying mechanisms and shed light on their functions. The growing body of evidence instills optimism about antioxidants’ potential benefits for human well-being.
The Effect of Product Personalization on Consumer Purchasing Intention, Customer Satisfaction, Brand Loyalty and Artificial Intelligence Applications with Machine Learning
Authors: Ballı Abdullah
Published: September 2024

Personalization is the ability of a company to evaluate its customer base as individual entities and achieve customized interactions and transactions based on this evaluation. Advances in information and communication technologies offer new opportunities in collecting and analyzing customer data and carrying out personalized marketing activities. In this context, the use of strategies such as special messages, targeted advertising campaigns, and special offers based on individual customer profiles allows companies to manage customer relations in a more effective and customized way. These developments play an important role in increasing customer satisfaction and loyalty of businesses, optimizing marketing strategies and gaining competitive advantage. The most important of these applications are machine learning and artificial intelligence. Therefore, within the scope of the study, it is aimed to measure the effect of product personalization on consumer purchasing intention, customer satisfaction and the resulting brand loyalty and to present an approach for processing the obtained information with machine learning and artificial intelligence applications. Within the scope of the research, data obtained from questions asked to consumers through digital survey forms with product personalization, purchase intention, customer satisfaction and brand loyalty scales are used. Data were analyzed using IBM SPSS 25.0 and IBM AMOS 26.0 software packages. As a result of the research, it was seen that product personalization has a positive and significant effect on consumer purchase intention and customer satisfaction, and purchase intention and customer satisfaction also have a positive and significant effect on brand loyalty. According to the findings, it was aimed to propose an artificial intelligence-based model that could be useful on consumer behavior and decision-making processes.
The Effect of Electronic Word-of-Mouth Marketing (e-WOMM) on Consumers' Hotel Preferences
Authors: Yavuz Horişan , Erdoğan Tarakçı İnci
Published: September 2024

Today, with the development of information and communication technologies, the usage area of online social networking sites has expanded, and consumers are offered unlimited sharing and information opportunities. Consumers can access the ease of sharing their opinions, thoughts and experiences through various channels on the internet. Especially in the tourism sector, where experiences are important, the intangibility of the products offered and the lack of the opportunity to try before purchasing create uncertainty for consumers. Therefore, the sharing and comments of those who experience the services constitute an important data source for consumers who want to make hotel choices. In this context, it is useful to examine the effects of e-WOMM (e-word of mouth marketing), which refers to the sharing of experiences and opinions in an online social network environment, on consumer decisions and preferences. Within the scope of the research, in order to measure the effect of e-WOMM on consumers' hotel preferences, 415 valid questionnaires were obtained through an online questionnaire directed to participants aged 18 and over who were determined by judgmental/purposive sampling method and who had previously participated in tourism activities. In addition to descriptive statistics, reliability, t-test, ANOVA and regression analyses were conducted on the data obtained. The results of the study revealed that e-WOMM influences consumers' hotel preferences and that positive/negative online reviews, as well as the reliability of reviews, the number of reviews, and the quality of reviews have a high impact on consumers' hotel preferences.
Fluctuations of BIST Sectoral Index Movements During High Inflation Periods: A Markov Regime Switching Analysis
Authors: Münyas Turgay , Koç Havva
Published: September 2024

Periods of high inflation generally cause uncertainty and risks in financial markets. In Turkey, the 2017-2023 period covers a time period characterized by frequent economic and financial fluctuations. High inflation in this period affected many sectors in the country and created significant volatility in financial markets. BIST sector indices were also affected by this economic environment and exhibited different volatile performances. In particular, sectors such as energy, food and beverages are generally more affected by inflation, while sectors such as services and technology have adapted more flexibly to economic fluctuations.
In this study, BIST Sector Indices: Food and Beverages, Electricity, Tourism and Technology indices over time (2017-2023), i.e., high and low return periods, a univariate Markov Regime Switching (MRS) model is estimated. According to the findings, the Food and Beverages index is stable in a particular market regime for a long period of time and has a high probability of remaining in that regime once it is switched. For the Electricity index, the index tends to remain in a particular market regime for a long time and can adapt quickly to changes in the market. During periods of high inflation, the BIST-Tourism Index exhibited long-term stability and the low volatility period covered a large period of time. This suggests that the tourism sector is resilient to economic uncertainties and is more suitable for long-term planning. For the BIST-Technology Index, it is understood that there is a long period of stability in a particular market regime and the period of low volatility lasts almost as long as the period of high volatility. This suggests that the technology sector is resilient to economic uncertainties and maintains its long-term stability.
The contribution of this study to the literature is that it reveals sector-specific long-term stability and volatility characteristics to analyze the fluctuations of BIST sectoral indices during periods of high inflation. It provides investors with important information about the different performance characteristics across sectors, allowing them to formulate more effective strategies.
Türk Futbol Alanında Varoluşsal Anlam Arayışı: Egemen Kurumsal Mantıklar
Authors: Şenyuva Zuhal
Published: September 2024

Kitleleri etkileyebilme gücü ve onlara değer transfer edebilme olanağı nedeniyle futbol, sosyal hayatta büyük etki yaratma potansiyeline sahip bir ekinlik alanıdır. Tüm dünyada popüler bir kültür alanı haline gelen futbola sadece bir spor dalı olmaktan öte toplumsal bir anlam yüklenmektedir. Bir kurumsal alanın ortak bilişini yansıtan ve o alandaki aktörlerin değerlerini, tutumları, inanışları ve davranışlarını şekillendiren anlam çerçeveleri bir kurumsal mantığını oluşturduğundan, futbol alan yazınında öne çıkan kurumsal mantığın ‘futbolun sadece futbol olmadığı, bunun çok ötesinde bir var oluş şeklini yansıttığı’ görüşleriyle şekillendiği söylenebilir. Bu kurumsal mantığın Türk futbol alanında egemen olup olmadığını anlamak üzere, bu alanın temel aktörleri olan Türkiye Futbol Federasyonu (TFF) ve Kulüpler Birliği ile Süper Lig 2023-2024 sezonundaki kulüplerin sahip oldukları değerler, yorumlayıcı fenomenolojik yaklaşımla niteliksel yöntem kullanılarak analiz edilmiştir. Betimsel kodlama aşamasında Türk futbol alanında ne birbiri ile rekabet eden ne de birbirini tamamlayan üç kurumsal mantığın eş zamanlı olarak var olduğu görülmüştür. Söz konusu kategoriler, toplum için futbol, spor için futbol ve kulüp için futbol mantığı olarak adlandırılmıştır. Örüntü kodlaması aşamasında ise bu kurumsal mantıklardan özellikle kulüp için futbol mantığının kulüpler için merkezde olan mantık olduğu buna karşın, spor için futbol mantığının ise TFF ve Kulüpler Birliği için egemen mantık olduğu tespit edilmiştir.
Teknoloji ve İşsizlik: Sistem GMM Tahminlerinden Ampirik Kanıtlar
Authors: Gülbay Yiğiteli Nadide
Published: September 2024

Çalışmada, teknolojik ilerlemenin iş kayıplarına ve işsizliğe neden olup olmadığı sorusuna odaklanılmaktadır. Ürün ve süreç yenilikle ortaya çıkan teknolojik ilerleme, bir yandan yeni iş alanları ortaya çıkarırken diğer yandan da mevcut işlerde ihtiyaç duyulan nitelikleri değiştirmektedir. Bu durum ise makinelerin insan emeğini ikame etmesiyle sonuçlanabilmektedir. Ortaya çıkan yeni iş alanları ve verimlilik artışları önemli birer fırsat olsa da bu fırsatların kaybolan meslekleri ve açığa çıkan işgücü arzını telafi etmekte yeterli olup olmadığı konusu gerek kuramsal gerekse ampirik olarak üzerinde fikir birliğine varılmış bir konu değildir. Nihai etkinin belirsizliği, yöntemsel gelişmeler ve veri setlerinin çeşitlenmesi konunun farklı boyutlarıyla ele alınması için önemli bir motivasyon kaynağıdır. Çalışmada, 1995-2021 dönemi ve 91 ülke kapsamında, işsizlik oranının geçmiş değerinin gelecek değerini etkilemesi eğiliminden hareket edilerek dinamik bir panel model çerçevesinde analizler yapılmıştır. Modeller iki aşamalı sistem Genelleştirilmiş Momentler Yöntemi (2SGMM) kullanılarak tahmin edilmiştir. Çalışmanın bulguları, işsizliğin kalıcılığını doğrulamakta ve sabit sermaye yatırımına dahil edilen somutlaştırılmış süreç yeniliğin emek tasarruf edici niteliğine işaret etmektedir. Ürün yeniliğin bir ölçüsü olarak modele dahil edilen ekonomik karmaşıklık endeksinin ise alternatif modeller kapsamında işsizlik oranını azaltıcı etkisinin olduğu tespit edilmiştir. Bir diğer model kapsamında ürün yeniliği temsil etmek üzere analize dahil edilen patent sayısının gecikmeli olarak işsizliği etkilediği bulunmuştur. Buna göre patent sayılarındaki artış, gecikmeli olarak azalan işsizlik oranlarıyla ilişkilidir.
Asimetrik Bilgi Sorununun Azaltılması İçin Açık Devlet Verilerinin Kullanılmasının Kamu Mali Denetimine Etkisi: Koltuk Denetimi
Authors: Yalçın Ebru , Başaran Alparslan Abdurrahman
Published: September 2024

Demokrasiye içkin sorunlardan biri olan asıl-vekil sorununun başlıca sebeplerinden birini teşkil eden asimetrik bilginin etkilerini azaltabilmek için kamu mali yönetiminde şeffaflığın ve hesap verebilirliğin tesis edilmiş olması gerekmektedir. Çalışmaya konu edilen koltuk denetimi kavramı, şeffaflığın günümüzdeki karşılığı olan açık devlet verilerinin kullanılarak asılların doğrudan kamu mali denetimine dahil olmasını ifade etmektedir. Geleneksel bütçe denetiminden koltuk denetimine geçişin ilk tecrübe edildiği ülkelerden biri olduğu için çalışmada Birleşik Krallık’taki gelişmeler incelenmiştir. Birleşik Krallık’ta koltuk denetimi faaliyetleri, vatandaşların bütçe sürecine ilişkin bilgi düzeyini artırmanın yanı sıra açık devlet verilerinin ve parlamento görüşmelerinin kullanılarak bütçe sürecinde ortaya çıkan anomali ve yolsuzlukların tespit edilmesini ve bunlara ilişkin kamuoyu oluşturulmasını sağlamaktadır. Parlamento görüşmesi, parlamento sorusu gibi yasamanın bütçe denetim araçlarının kamuoyu görünürlüğünün ve vekiller ile vatandaşlar arasındaki etkileşimin artmasına da katkı sağlayan koltuk denetimi, Birleşik Krallık’ta asimetrik bilgi sorununu azaltmakta önemli bir rol oynamaktadır.
Küresel Lojistik Krizine Çözüm Alternatifi: Avrasya’nın Lojistik Merkezi Olarak Türkiye
Authors: İlbars Hanta Nazlı Deniz , Çiçek Recep
Published: September 2024

Küreselleşmenin sonucu olarak ortaya çıkan küresel rekabete ve küresel krizlere çözüm arayışlarının başında lojistik sektörü aracılığıyla ülkelerarası ticareti artırmanın yolları aranmaktadır. Bu amaçla rekabetçi ülkeler gelişmiş bir taşımacılık ağı kurulması gerekliliğini ön plana almışlardır. Ülkelerarası gelişmiş bir taşımacılık ağının ön koşulu ise etkin ve verimli bir lojistik yönetimle ulaştırma koridorları oluşturmaktır. Bu koridorların çoğunda Türkiye merkezi konumdadır. Çünkü Türkiye Asya ile Avrupa kıtasını birbirine bağlayan bir köprü görevi görmektedir. Bunun yanında Dünya üzerindeki bütün kıtaların nerdeyse kesişiminde yer alarak Avrupa, Asya, Avrasya, Afrika kıtalarının da ötesinde küresel boyutta bir lojistik merkez olma özelliğiyle Dünya üzerindeki herhangi bir yere doğrudan erişim olanağı sağlayan tek lojistik ülkedir. Bu bakımdan Türkiye başta Avrasya kıtası olmak üzere Asya ve Avrupa’nın kesişim ve birleşim noktasında yer alarak özellikle Avrasya’nın en önemli lojistik merkezi olma potansiyeli taşımaktadır.
Çalışma betimleyici araştırma türünde desenlenmiştir. Ülkelerarası artan ticaret hacmi ve üretim gücünün yanında ortaya çıkan küresel rekabete yönelik çözüm arayışlarına en iyi cevap lojistik merkezlerin oluşturulmasıdır. Küresel rekabetin artması ve küresel ekonomik kriz sonucunda hayata geçirilen tarihi İpek Yolunun canlandırılması, TRACECA, Bakü- Tiflis- Kars demiryolu projeleri gibi lojistik projelerde Türkiye merkezi konumda yer almaktadır. Bu projelerdeki kilit konumuna baktığımızda Türkiye Avrasya ile Asya arasındaki en kısa güzergaha sahip ülke olduğunu hem demiryolu hem de karayolu altyapısını geliştirerek göstermelidir. İki kıta arasında geliştirilen projelerdeki konumunu güçlendirecek politikalarla desteklemelidir. Bu çalışma ile Türkiye’nin Avrasya bölgesinin lojistik merkezi olma potansiyeli ortaya çıkarılmaktadır.
Impact of Sensor Placement on Indoor Air Quality Monitoring: A Comparative Analysis
Authors: Adelodun Adedeji Adebukola , Rezaei Mohsen , Ardkapan Siamak , Jakobsen Nan Normann , Johnson Matthew
Published: September 2024

This study investigates the impact of sensor placement on the accuracy and responsiveness of indoor air quality (IAQ) monitoring focusing on particulate matter concentrations. Measurements were conducted in a controlled environment using three intercalibrated sensors positioned at different locations: a wall-mounted sensor installed at 1.2 meters above the ground, a sensor placed at the inlet of an air purifier, and a sensor located at breathing height in the center of the room. A particle source was introduced at four different points within the room to simulate varying pollution scenarios. The results revealed that the wall-mounted sensor exhibited delays of up to 200 seconds in detecting peak pollutant concentrations compared to the sensor near the air purifier. Additionally, the wall-mounted sensor consistently recorded lower pollutant levels compared to the other two sensors. The findings underscore the critical importance of strategic sensor placement for accurate and real-time IAQ monitoring. Placing sensors closer to breathing zones and pollution sources provides data that more accurately reflects human exposure risks. The study concludes that wall-mounted sensors may not provide real-time air quality data in dynamic indoor environments. Further research, including computational fluid dynamics (CFD) simulations, is recommended to optimize sensor placement strategies.
Total Synthesis of Three Classes of Ring C-seco Limonoids
Authors: Jin Shicheng , Ma Dawei
Published: September 2024

The nimbin-type, salannin-type and nimbolinin-type are three structurally related classes of ring C-seco limonoids possessing a complicated hexacyclic framework with a broad range of biological activities. Herein, a convergent and divergent route to access these classes was disclosed by the efficient and protecting-group-free syntheses of 52 ring C-seco limonoids. Key transformations include: 1) a catalytic asymmetric intermolecular Diels-Alder reaction to forge the A-ring bearing desired stereochemistry at C4 and C5; 2) a diastereoselective Pd-catalyzed reductive Heck reaction for the formation of the C8-C9 bond; 3) a sulfonyl hydrazone-mediated etherification and a regioselective 5-exo-trig radical cyclization for construction of the central tetrahydrofuran ring of the natural products; 4) BF3·Et2O-promoted biomimetic skeletal rearrangement reaction of the salannin-type to generate the nimbolinin-type.
Crash Testing Machine Learning Force Fields for Molecules, Materials, and Interfaces: Molecular Dynamics in the TEA Challenge 2023
Authors: Poltavsky Igor , Puleva Mirela , Charkin-Gorbulin Anton , Cordeiro Fonseca Gregory , Batatia Ilyes , Browning Nicholas J. , Chmiela Stefan , Cui Mengnan , Frank J. Thorben , Heinen Stefan , Huang Bing , Käser Silvan , Kabylda Adil , Khan Danish , Müller Carolin , Price Alastair J. A. , Riedmiller Kai , Töpfer Kai , Wai Ko Tsz , Meuwly Markus , Rupp Matthias , Csanyi Gabor , von Lilienfeld O. Anatole , Margraf Johannes T. , Müller Klaus-Robert , Tkatchenko Alexandre
Published: September 2024

We present the second part of the rigorous evaluation of state-of-the-art machine learning force fields (MLFFs) within the TEA Challenge 2023. This study provides an in-depth analysis of the performance of MACE, SO3krates, sGDML, SOAP/GAP, and FCHL19* in modeling molecules, molecule-surface interfaces, and periodic materials. We compare observables obtained from molecular dynamics (MD) simulations using different MLFFs under identical conditions. Where applicable, density-functional theory (DFT) or experiment serves as a reference to reliably assess the performance of the machine learning models. In the absence of DFT benchmarks, we conduct a comparative analysis based on results from various MLFF architectures. Our findings indicate that at the current stage of MLFF development, the choice of the ML model is becoming less critical, as the resulting simulations are largely independent of the MLFF architecture. Instead, emphasis should be placed on developing complete, reliable, and representative training datasets. Nonetheless, long-range noncovalent interactions remain challenging for all MLFF models, necessitating special caution in simulations of physical systems where such interactions are prominent, such as molecule-surface interfaces. The findings presented here reflect the state of MLFF models as of October 2023.
The Shadow Economy, Mobile Phone Penetration and Tax Revenue in Sub-Saharan Africa
Authors: Bentum-Ennin Isaac , Adu Ebenezer
Published: September 2024

This study investigates the effect of the shadow economy on tax revenue and the moderating effect of mobile phone penetration in Sub-Saharan Africa. Using data on 26 SSA countries over 11 years and employing the system General Method of Moments (GMM) approach, the study reveals that the shadow economy has a significant negative effect on tax revenue in SSA, whereas mobile phone penetration has a significant positive effect on tax revenue. Again, mobile phone penetration plays a moderatingrole in the shadow economy–tax revenue nexus in SSA. Governments in the SSA region need to update their tax administration systems, construct and enhance infrastructure linked to emerging mobile technology, and implement best practices in tax regulations. Lastly, governments and telecommunications companies should implement some kind of consumereducation in the informal sector to raise awareness of the advantages of using mobile phones for business transactions and the simplicity of paying taxes using a mobile device.
AÇÕES EM PERÍODO DE CRISE: VALE A PENA INVESTIR? UM GUIA PARA INVESTIDORES
Authors: Casamali Kleidiane , Ellwanger Manuela Pozza , Ellwanger Maurício Pratzel , Suchek Eduardo Murara , Silva Robson de Faria
Published: September 2024

Objetivo: Este estudo analisa o comportamento das ações de duas empresas do setor de aviação brasileiro durante a pandemia de COVID-19. Utilizando o índice de Sharpe, avaliamos a variação e o retorno dessas ações em comparação com o Ibovespa e a taxa Selic. Investigamos se investir em ações durante períodos de crise é uma estratégia viável, considerando diferentes perfis de investidores (longo, médio e curto prazo). Os resultados indicam que, apesar dos retornos negativos em muitos períodos, o investimento em ações ofereceu um retorno superior à taxa Selic, demonstrando que pode ser vantajoso investir em ações mesmo durante crises econômicas.
 
Referencial Teórico: O referencial teórico destaca as teorias de risco e retorno, com foco em crises econômicas, especialmente as pandêmicas. A volatilidade e o desempenho das ações, conforme observado durante a pandemia de COVID-19, serão interpretados com base em teorias financeiras, fundamentando a análise subsequente.
 
Método: A metodologia utiliza uma análise quantitativa baseada em dados diários do mercado financeiro coletados via Python. As ações de duas empresas de aviação foram analisadas quanto à sua variância, desvio padrão, covariância e correlação em relação ao Ibovespa e à taxa Selic. O Índice de Sharpe foi calculado para avaliar a relação risco-retorno, fornecendo uma perspectiva detalhada sobre o comportamento das ações durante o período estudado.
 
Resultados e Discussão: Os resultados indicam uma alta volatilidade das ações durante o período pandêmico, com oscilações significativas em relação ao Ibovespa e à taxa Selic. Apesar de períodos de retorno negativo, a recuperação gradual no pós-pandemia sugere que, para investidores de longo prazo, o investimento em ações poderia oferecer retornos superiores à taxa Selic. A discussão contextualiza esses achados, destacando a resiliência do setor de aviação e as limitações do estudo.
 
Implicações da Pesquisa: As implicações práticas incluem orientações para investidores sobre a gestão de risco e decisões de investimento no setor de aviação. Teoricamente, o estudo contribui para a compreensão do comportamento do mercado acionário em períodos de crise, oferecendo insights sobre a resiliência e recuperação do setor.
 
Originalidade/Valor: Este estudo oferece uma análise detalhada e original do comportamento do setor de aviação brasileiro durante a pandemia de COVID-19. Os resultados são relevantes tanto para investidores quanto para pesquisadores, fornecendo uma compreensão aprimorada do impacto de crises pandêmicas no mercado financeiro.