bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of combined processing method of phosphate minerals from the Kef Essenoun deposit
Authors: Attafi Imane , Idres Abdelaziz , Mekti Zohir , Bouras Amina , Benselhoub Aissa , Merzeg Farid Ait , Dovbash Nadiia , Bellucci Stefano
Published: May 2024

Currently, the processing of beige and black phosphates only concerns the main sub-layers, while the other sub-layers (lower and upper for beige phosphate and the upper for black phosphate) are considered waste rock and stored near the complex. Therefore, the object of this research is the use of mixtures of three beige phosphate sub-layers and two black phosphate sub-layers as a feed fraction for the calcination and reverses flotation processes. This research work aims to characterise and treat two types of phosphate: one beige with the sub-layers (main, lower and upper) and the other black with the sub-layers (main and upper) in order to have better recovery of P2O5.
The working methodology consists of a series of sample preparation operations and characterization of the two types of beige and black phosphate. This characterization includes a petrographic study, a granulochemical analysis, an X-ray diffraction (XRD), a scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), and an atomic adsorption spectrophotometry (SAA), an auto analyzer (AA), a Bernard calcimeter. These analyzes allow on the one hand to identify the mineral phases in quantitative and qualitative manner, and on the other hand to choose the process for treating phosphates from the Kef Essenoun–Tebessa deposit.
The combined method of treatment by calcination followed by reverse flotation gave satisfactory results. The P2O5 content reaches 33.88 % for beige phosphate and 33.13 % for black phosphate.
The stored waste rock represents a problem for the company; this waste rock contains fairly high levels of phosphate. The treatment of the mixture of the main sub-layers with these waste rocks makes it possible to obtain a better recovery of P2O5, a better economic profitability of the Djebel Onk mining complex and an environmental impact in the region.
Study of the feasibility of valorizing phosphate ore by electrostatic separation
Authors: Derrardjia Nesrine , Nettour Djamel , Chettibi Mohamed , Chaib Rachid , Zeghloul Thami , Dascalescu Lucien , Aouimeur Djillali
Published: May 2024

The object of this research is the phosphate serves, as a fundamental and crucial raw material with diverse applications, primarily utilized in producing phosphoric acid and fertilizers. However, dolomitic impurities within the ore can greatly impede its effectiveness. Therefore, it is essential to minimize these impurities to the lowest feasible levels to mitigate their adverse effects. This ensures optimal performance and quality in various industries reliant on phosphate, promoting efficiency and sustainability in the production process. Through a comprehensive assessment, it becomes feasible to gauge the enrichment potential and propose viable methods to realize it. Among these methods, flotation stands out as one of the most effective for enhancing phosphate ore, despite its inherent drawbacks of costliness and environmental impact stemming from chemical reagents.
This study endeavors to investigate the feasibility of employing electrostatic separation as an alternative method for enriching phosphate ore sourced from the Tebessa region in Algeria. Such exploration aims to offer insights into potentially more sustainable and economically viable approaches to ore enrichment in the region of Bir Elater Wilaya of Tebessa. Tests were carried out using different types of electrostatic separators at the Angouleme site of the PPRIME Institute: a multifunctional metal-belt-type separator, a free-fall plate-electrodes-type separator and an electrostatic separator with coaxial wire – cylinder electrode system. The experimental findings demonstrate significant promise, indicating that electrostatic separation enhanced the P2O5 content from 25 % to 29 % in an untreated phosphate ore sample. Simultaneously, it efficiently eliminated 82.80 % of MgO, achieving a P2O5 recovery rate more than 80 % and a yield of 70 %. Consequently, employing this method proves effective in reducing the MgO content of the ore to below than 1 %, aligning with industrial standards for commercial phosphate products. This underscores the viability of electrostatic separation as a viable and efficient technique in phosphate ore processing, offering substantial improvements in both quality and yield.
The choice of rational adjustment of the chemical composition of iron melted in an electric arc furnace on the basis of technological audit of serial films
Authors: Nikolaev Denis
Published: May 2024

The object of research in the work is cast iron of the SCh20 grade according to GOST 1412-85 (DSTU EN 1561, EN-GJL-200), which is melted in an electric arc furnace. In this work, the parameters of serial smeltings of cast iron used for machine-building castings were determined, which were used to select the content of elements of the chemical composition.
The existing problem is that the impossibility of taking into account many factors influencing the formation of the chemical composition of cast iron during smelting leads to deviations of the chemical composition from the requirements regulated by the technical conditions. The main reason for this is the uncontrollability of the chemical composition of the charge materials and the difficulty of accurately determining the soot of the elements during the smelting process. This can lead to the formation of a shortage of cast iron, or to excessive costs for smelting, associated with the need for additional technological operations and the use of additional materials to eliminate detected deviations of the composition from the requirements.
The procedure of technological audit of serial smeltings is proposed, the feature of which is a comprehensive assessment of the actual indicators of smelting. They include: mathematical expectations of the content of the elements of the chemical composition, estimates of their dispersions, root mean square deviations, systematic errors, scattering fields and deviations of the lower and upper limits of the content of each element from the lower and upper limits required by the technical conditions. The results of such an audit are the possibility of calculating corrective combinations of charge materials and ferroalloys, which eliminate inaccuracies in the calculation of the charge and the determination of the heat of the elements during the smelting process.
As a result of the audit of a sample of 31 serial smelters, it was established that the average content of the elements C, Mn, Si, Cr exceeds the average required by technical conditions. These deviations are: +0.04 % C, +0.06 % Mn, +0.038 % Si, +0.06 % Cr. To compensate for these deviations, the following combination of charge materials and ferroalloys, which are introduced into the melt before delivering the cast iron to the casting area, is proposed: 44 kg of steel scrap +88 kg of recycled iron.
The presented study will be useful for machine-building enterprises that have foundries in their structure, where iron is melted for the production of castings.
Component analysis for energy-efficient multimedia networks utilizing 5G radio access technologies
Authors: Lavrinenko Vladyslav , Stepanov Mikhailo
Published: May 2024

The object of the research is the energy-efficient multimedia networks based on 5G wireless access technologies.
The research is aimed at developing energy-efficient multimedia networks based on 5G wireless access technologies, considering the increasing importance of information and communication technologies (ICT) in modern society. With the proliferation of wireless access networks and the advancement of fifth-generation mobile networks (5G), there is a need to assess and reduce the environmental impact of ICT. The article specifically focuses on the challenges related to energy consumption and CO2 emissions in radio access networks, highlighting the responsibility to balance technological advancements with environmental concerns.
The paper examines various components and technologies necessary for enhancing energy efficiency in multimedia networks. It discusses the concept of multimedia, including digital storage, data processing, and interactive elements. Statistical data is provided to underscore the significant energy consumption and carbon footprint of the ICT industry, with an emphasis on radio access networks. Heterogeneous networks, non-orthogonal multiple access (NOMA) technologies, and multiple-input multiple-output (MIMO) technologies are identified as key components for achieving energy efficiency. The importance of reducing the distance between transmitters and receivers in heterogeneous networks is emphasized, as well as the use of energy-saving strategies such as putting small base stations into sleep mode during low network loads. Special attention is given to the role of green data centers in reducing CO2 emissions and optimizing the use of green energy in high-performance networks. Proposed methods include leveraging renewable energy sources, improving hardware energy efficiency, and implementing energy-efficient routing.
The findings offer valuable insights for the development and implementation of energy-efficient multimedia networks, particularly in the context of 5G networks. The interdisciplinary approach advocated in the conclusion emphasizes the collective efforts needed to address environmental challenges in the field of information and communication technologies. The combination of these technologies ensures efficient resource utilization and reduced environmental impact compared to similar known approaches.
Application of carbazole derivatives as a multifunctional material for organic light-emitting devices
Authors: Ivaniuk Khrystyna , Kutsiy Stepan , Shchetinin Mykhailo , Bulavinets Tetiana , Yaremchuk Iryna
Published: May 2024

The object of research is newly synthesized carbazole-derived compounds and organic light-emitting structures based on them. The problem lies in the complex solution of scientific and technical problems of improving the characteristics and stability of organic light-emitting diodes (OLEDs), namely improving the brightness and energy-efficient parameters.
Organic light-emitting structures of blue, blue, and green radiation with color coordinates were formed by the thermovacuum sputtering method and the solution deposition method. The turn-on voltage of the white OLED is 6 V, the maximum brightness of the light-emitting structures was 10,000 cd/m2. The devices demonstrated a sufficiently high external quantum efficiency of 5 % to 7 %.
This paper reports the multifunctional application of a simple donor-acceptor organic compound, as active and host material in the emission layer of organic light emitting devices. Em1 has been used as active components in OLEDs, where Em1 is the guest emitter (Device A), the acceptor part of the excited emitter (Device B) and the host matrix of the CdSeS/ZnS alloy quantum dot. At least four different OLEDs have been designed and characterized where Em1 plays the role of the guest emitter (Device C). The external quantum efficiencies of devices A–C are characterized by values common to pure fluorescent OLEDs (up to 5 % of the theoretical limit), but these devices sustain low-efficiency roll-off of electroluminescence over a wide range of current densities.
Organic light-emitting diodes based on carbazole-derived compounds, due to their color characteristics, are promising candidates for use in the latest lighting systems. A separate advantage of the data light-emitting structures is a multifunctional application of one compound for different types of light-emitting structures. In addition, organic LEDs on based on carbazole-derived compounds have low energy consumption and are environmentally friendly due to the absence of toxic substances in their architecture, which creates prerequisites for saving energy resources and reducing the industrial burden on the environment.
Comprehensive analysis and assessment of the production and export potential of organic niche products
Authors: Drebot Oksana , Vysochanska Mariya
Published: May 2024

The object of the study is the determination of ecological and economic efficiency in relation to the production of organic niche products. The strategic perspective of the production and export of organic niche products in Ukraine is considered as one of the ways to overcome economic challenges exacerbated by global instability and geopolitical tensions. The production of organic products is outlined as a strategically important direction of the country's agricultural sector, which has significant export potential, especially to the countries of the European Union, where there is a steady increase in demand for organic products. A comprehensive approach to strategy implementation is proposed, which includes market research, production development, marketing and branding, as well as optimization of logistics and export processes. The dynamics of the main indicators of the development of organic agriculture in Ukraine from 2010–2021, the volume of imports of organic products to the countries of the European Union by exporting countries were analyzed. To date, only 1 % of agricultural crops are «eco», the volume of organic products has significantly increased, and the yield of organic products has increased by 5–20 % with a corresponding reduction in material costs. Since the end of the 1990s, the agricultural sector of Ukraine began to focus intensively on organic production, taking into account the growing global trend towards the sustainable development of the agro-industrial complex, etc. Given their uniqueness, growing niche crops can offer advantages such as minimal competition and the potential for significant profits, especially when the products find widespread use. A comparative analysis of the production of organic products on the domestic and foreign markets of Ukraine was conducted. A SWOT analysis of the production of organic products in Ukraine was developed to determine the strengths and weaknesses. The practical value is providing advice to producers on growing niche crops, creating market demand, attracting foreign partners to implement such projects in Ukraine, which will contribute to strengthening the economic potential of agricultural producers. This will help increase the competitiveness of domestic enterprises in the local and global markets, make them more resistant to economic challenges and help reduce risks, etc.
Innovativeness as a Determinant of Territorial Development
Authors: Łuszczyszyn Andrzej , Papież Patrycja
Published: May 2024

Innovativeness is a key determinant in territorial development. Due to the fact that this development is concentrated on a specific geographical area, it refers to the ability to introduce novel, unique solutions, but above all to make use of knowledge and create new value in a given territory. Undeniably, it has an influence not only on the creation of a competitive advantage, economic growth, and the development of strategic sectors, but also, which should be underlined, on cooperation and clustering. The need to implement innovations stems from the competitiveness of enterprises, but above all, from the need to stimulate a territory as a specific social structure. For this reason, in the current socio-economic reality, innovativeness refers to the whole community in a given territory, its history, culture, knowledge and territorial capital skills. The aim of the article was to analyse the opportunities for implementing innovative processes in order to strengthen the territorial development paradigm, which is as yet poorly understood and popularised in the economic sciences, although sometimes correctly associated with the development of socio-economic areas (regions, micro-regions). The article is theoretical in nature. The research method applied is critical analysis of the subject literature.
UNI, DUNI, TÊ: IDENTIDADE E DRAMATICIDADE NAS MÚSICAS DE SOBREVIVENDO NO INFERNO, DOS RACIONAIS MC'S
Authors: Zeni Bruno
Published: May 2024

RESUMO A música dos Racionais MC's, um dos mais importantes grupos do rap brasileiro, retira sua força de um discurso contundente. O rap dos Racionais é uma poesia feita na periferia e que procura se dirigir à própria periferia, quebrada de origem de seus integrantes. Entretanto, seu alcance extrapola esse público de iguais para se voltar também a outros atores sociais. Isso ocorre por terem alcançado muito sucesso, mas também por razões formais características da estrutura das composições. Outro recurso ainda mais significativo é a caracterização de personagens atuando nas músicas, que incluem atores e interlocutores mais abrangentes. Nesse processo, o rap dos Racionais combina a construção de identidades a uma performance que encena e dramatiza posições narrativas e sociais. A partir do disco Sobrevivendo no Inferno (1997), a música do grupo convoca um público amplo e interpela o ouvinte, que precisa se posicionar em relação ao que escuta. O artigo se propõe a averiguar como as letras do grupo passaram a contribuir para esse alargamento do diálogo com os ouvintes. Duas composições, "Diário de um detento" e "Capítulo 4, versículo 3", são analisadas para entender como, ao dramatizar situações em que diferentes atores sociais se encontram, as músicas obrigam a assumir posições, a participar do drama, de um drama que é o drama das periferias, mas que é também o drama de todos, como essas músicas indicam, convocando não apenas a refletir, mas a participar do jogo de ação e fruição das composições.
SUSSURROS, GRITOS E RESISTÊNCIAS ENREDADAS NO SLAM MINAS COIMBRA
Authors: Vidal Saru
Published: May 2024

RESUMO Este artigo originou-se de uma apresentação que realizei no III Colóquio Internacional Exodus e GEDLit, na Universidade Estadual de Campinas (UNICAMP). Nele, apresento uma leitura do Slam das Minas Coimbra, fundado em 2020. Trata-se do primeiro Poetry Slam no contexto português a abordar especificamente as questões de género, raça e sexualidade, com ênfase na experiência da migração na sociedade pós-colonial portuguesa. À medida que avanço, realizo uma contextualização do território no qual o coletivo surge, evidenciando diversos contrastes sociais, incluindo as retóricas da modernidade/colonialidade ancoradas às práticas sociais, anualmente repetidas e ritualizadas, conhecidas como "praxes" (ou trotes). Posteriormente, abordo como o Slam das Minas Coimbra tateia feridas coloniais, possibilitando um olhar crítico sobre a criação da "Comunidade de Países de Língua Portuguesa". Considero este organismo como um instrumento do ideal da "lusofonia", que reaviva raízes neocoloniais. Por fim, partindo da inspiração de Gayatri Spivak, e da sua abordagem de utilizar a linguagem imaginativa para desmascarar o nacionalismo cultural, analiso como o poema "sem título" dA GRETA, artista independente imigrante brasileira, desconstrói a ficção colonial, alicerçada na poesia de Camões. Essa abordagem representa uma vertente anticamoniana imaginada pela artista. Destaco a instrumentalização da poesia slam para a transgressão da norma (culta e europeia) do português de Portugal, proporcionando espaço para a plurilinguística dos falantes de português na sociedade portuguesa pós-colonial.
NÃO-LUGAR LITERÁRIO: O ESPAÇO PROVISÓRIO DA LITERATURA NA BNCC
Authors: Sousa Antonio Ismael Lopes de , Carvalho Ana Cristina Teixeira de Brito , Mendes Geane Martins , Lima Lilian Castelo Branco de , Melo Márcio Araújo de
Published: May 2024

Com o mote de identificar o tratamento dedicado à literatura na Base Nacional Comum Curricular - Ensino Médio, o presente estudo propõe um debate sobre o espaço minguado que o documento reserva à área. Para tanto, nos norteamos pelo conceito de “não-lugar” que, em Augé (2005), corresponde a um ambiente no qual imperam o utilitarismo e a transitoriedade, isto é, um espaço, ao mesmo tempo, lotado e vazio, que enquanto estrutura física existe de fato, mas sem construção identitária, nem valor relacional e histórico, por isso, banal. Circunscrevendo a literatura ao “não-lugar literário”, ao fazer recomendações vazias, antagônicas, inconsistentes e, às vezes, impraticáveis ​​ao campo artístico-literário, a BNCC opera tanto no sentido de esgotar o acesso à literatura em âmbito educacional – já que colabora para o apagamento dessa arte nesse espaço –, como também contribui para, disfarçadamente, direcionar-la ao caminho da utilidade mercadológica e de outros ideais neoliberais, cujo efeito principal é a anulação das potências dessa arte plural. Imbuída de perspectivas intrincadas e vazias de sentidos em um texto insignificante, na nova BNCC, a literatura não somente não logra o relevo de arte como também é (in)oportunamente enfraquecida, impulsionada ao esquecimento e/ou até mesmo a um propósito afastado dela.
INVESTIGATING THE EFFECT OF ELASTIC WALLS AND INCLINED BAFFLES ON THERMAL MIXING OF TWO FLUIDS IN Y-JUNCTIONS
Authors: Altaee Sajad Mohammed Aboud , Razavi Seyed Esmail
Published: May 2024

In this study, the mixing of two fluids with different temperatures in Y-junctions with elastic walls and rigid baffles is
studied. The Fluid-Structure Interaction (FSI) model is implemented to capture the interaction between the fluid and
the solid structure by using the Arbitrary Lagrangian-Eulerian (ALE) method. The main purpose of the present study
is to improve the temperature mixing between the two fluids flowing inside the Y-junction by utilizing partly elastic
walls and inclined baffles in the configuration of the Y-junction. The oscillation of the elastic walls in the present study
is caused by sinusoidal inlet velocities and external forces applied to the walls. The obtained results indicate that the
thermal mixing between the hot fluid and cold fluid is improved with an increase in the amplitude and frequency of the
applied load on the elastic walls. Moreover, an increase in the frequency of the inlet sinusoidal velocities contributes
to enhanced temperature mixing and better thermal mixing of the hot fluid and cold fluid. Besides, with a decrease
in the elastic modulus of the elastic walls and a decrease in the distance of the elastic walls from the start point of
the horizontal branch of the Y-junction, the thermal mixing index improves. Finally, the addition of the two fins
considerably enhances the thermal mixing of the cold fluid.
Glass-fibre-reinforced mortar: study of fresh behaviours based on average water film thickness and fibre/cement ratio
Authors: Li Leo Gu , Xiao Bo-Feng , Yu Jing
Published: May 2024

Using glass fibres to reinforce cement-based materials (CBMs) has great effects on their fresh behaviours. In addition, the impact of water – particularly the average water film thickness (AWFT) – on the fresh properties of CBMs cannot be ignored. However, the combined effects of glass fibre content and AWFT on the fresh characteristics of CBMs are not satisfactorily understood. Therefore, in this study, mortar mixtures with varying fibre/cement (f/c) ratios and water/cement ratios were prepared and subjected to mini V-funnel tests, mini slump flow tests, stone rod adhesion tests, sieve segregation tests and wet packing tests. The AWFTs of the mortar mixes were also determined. The experimental results indicated that the f/c ratio (fibre content) had a noticeable influence on the fresh properties, packing density and AWFT. Modelling analysis demonstrated strong correlations of the workability, flowability, adhesiveness and cohesiveness with the f/c ratio and the AWFT. In other words, both the AWFT and the fibre content collectively serve as governing factors influencing the fresh behaviours of mortars reinforced with glass fibre.
Assessment and optimisation of a bywash channel at Slaithwaite reservoir
Authors: Monkhouse Lucy
Published: May 2024

Improvement works to the bywash channel at Slaithwaite reservoir were undertaken in early 2022. An assessment, design and subsequent minor construction works were required to satisfy a measure in the interests of safety relating to the capacity of the bywash channel and its use in the context of an emergency at the dam. The on-site plan was revised and re-certified as a result of changes made including outline designs to enable reservoir inflows to be diverted into the bywash.
Burnhope Reservoir: improving drawdown capabilities and water network resilience
Authors: Morris Daniel
Published: May 2024

A statutory inspection of Burnhope Reservoir completed under Section 10(3) of the Reservoirs Act 1975 noted that the 30 inch washout valve at the outlet tunnel portal had not been tested for some time. A measure in the interests of safety was to simply open and close the 30 inch washout valve over its full range to prove its operability. However, the washout valve is located on the outlet of the 40 inch supply main, which provides both a raw water supply to the water treatment works (WTW) and can also be used for emergency drawdown. Should the washout valve fail, the consequence would be a loss of pressure to the WTW, which would shut down. To maintain deployable output throughout the testing of the washout, its subsequent replacement and installation of a new free discharge control valve, a new 600 mm cross-connection pipeline was installed between the independent 40 inch supply/emergency drawdown main and 30 inch scour main. This cross-connection pipeline then removed the risk of interrupting the water supply and permitted the washout to be tested and subsequently replaced while also providing a resilient water network and much improved control of the 40 inch supply main drawdown asset.
Evidential approach to affordable housing programme development: an Ontario case study
Authors: Hay Alexander H. , Duarte Jacqueline D. , Martyn Nicholas Q. J. , Shillingford Gail M.
Published: May 2024

Housing affordability is a global crisis. UN Habitat estimated in 2020 that 80% of global cities do not have affordable housing options for the majority of their population; the World Economic Forum estimates a need for an extra two billion homes over the next 75 years (96,000 completions per day). The Canadian Centre for Housing Rights points to a confluence of economic, social and governmental factors created today’s homelessness and affordability issues. In Q3 2022, The Royal Bank of Canada reported that 62.7% of Ontarians' household income goes towards the cost of home ownership, skewed by 85.2% in Toronto. Traditional affordable housing models aren’t working. A 2023 Ontario regional affordable housing feasibility study provided the opportunity for a new approach. Independent analysis of open-source evidence, with risk evaluation and allocation, demonstrated the local applicability of two decades of international lessons of affordable housing projects. It provided an objective approach that serves the health of tenants and the wider community. In challenging preconceptions, it showed that a capability-based infrastructure development planning approach would be most suitable for affordable housing projects. Furthermore, it found that an enterprise-wide, transparent and outcomes-focussed governance structure is essential to successful risk allocation.
Lipolysis-Stimulated Lipoprotein Receptor in Proximal Tubule, BMP-SMAD Signaling, and Kidney Disease
Authors: Jiang Min , Wang Xiangdong , Chen Zhenni , Wang Xin , An Yanan , Ding Lixia , Xu Mengyuan , Fan Baozhen , Jiao Peng , Wang Chao , Wang Mingxia , Sun Hui , Zhao Shengtian , Gong Yongfeng
Published: May 2024

Key Points

We identify that lipolysis-stimulated lipoprotein receptor is highly enriched in the nucleus of mouse and human kidney.

This study provides new insights into the role of lipolysis-stimulated lipoprotein receptor in kidney disease.

Background

Lipolysis-stimulated lipoprotein receptor (LSR) is a single-pass membrane protein that plays essential roles in tricellular tight junction organization in the epithelium and endothelium, but its function in kidney physiology and disease development remains unknown.

Methods

Conditional Lsr deletion mice were generated and analyzed to investigate the function of LSR in proximal tubule. Unilateral ischemia-reperfusion was used as an injury model to investigate the role of LSR in AKI and the progression to CKD. Detailed mechanistic analyses were conducted using whole-transcriptome RNA sequencing, immunofluorescence, dual-luciferase reporter gene assay, coimmunoprecipitation, RNA immunoprecipitation, and adeno-associated virus-mediated gene overexpression and knockdown.

Results

The nuclear localization of LSR was found in the kidney. Proximal tubule–specific Lsr knockout mice exhibited alleviated kidney damage and fibrosis compared with those in wild-type mice in response unilateral ischemia-reperfusion injury. Loss of LSR resulted in downregulation of Chrdl1 and activation of bone morphogenetic protein (BMP)-mothers against decapentaplegic homolog (SMAD) signaling in proximal tubules. Treatment with CHRDL1 counteracted the protective effect of LSR deletion in the unilaterally ischemic injured kidney. In addition, the systemic delivery of Chrdl1 short hairpin RNA attenuated injury-induced kidney fibrosis. LSR formed a complex with 14-3-3θ in the nucleus of proximal tubular cells, thereby reducing the interaction between human antigen R and 14-3-3θ, consequently leading to the translocation of unbound human antigen R to the cytoplasm. The absence of LSR promoted the association of 14-3-3θ with human antigen R, potentially resulting in decreased human antigen R levels in the cytoplasm. Reduced human antigen R levels impaired Chrdl1 mRNA stability, subsequently leading to the activation of BMP-SMAD signaling.

Conclusions

Deletion of LSR in proximal tubule deregulated Chrdl1 to activate BMP-SMAD signaling and ameliorated kidney disease.
Cultural Values of Tourists as Moderators of the Satisfaction-Loyalty Link: An Empirical Investigation in the Hospitality and Tourism Context
Authors:   The Korea International Trade Research Institute, Wu Jingwen , Kim Ko-Woon
Published: May 2024

Purpose - The role of customer satisfaction in predicting customer loyalty has attracted a great deal of attention from academics and practitioners in recent years. However, there have been limited empirical studies on this topic, particularly in the context of Korean tourism. Additionally, since tourists typically come from diverse cultural backgrounds, they may present a wide range of subsequent attitudes and behaviors, even after identical tourism experiences. This implies that the relationship between satisfaction and loyalty may appear vastly different in different tourists. In this vein, the purpose of the present paper is twofold: (1) to empirically examine the association between tourist satisfaction and tourist loyalty, and (2) to explore cultural values as potential moderators of the aforementioned tourist satisfaction-tourist loyalty link, namely long-term orientation and cultural intelligence.
Design/Methodology/Approach - Using the expectancy disconfirmation paradigm as a theoretical backdrop, the present study proposed and tested the research hypotheses. Data were collected from a web-based survey of 400 tourists visiting South Korea.
Findings - The findings of this study indicated that tourist satisfaction with a trip was positively related with tourist loyalty. The findings further revealed that the long-term orientation of tourists positively moderates the tourist satisfaction and tourist loyalty relationship, yet this moderating impact of long-term orientation varies in accordance with the level of cultural intelligence of tourists.
Research Implications - With the increased recognition of importance of tourism in South Korea’s trade, this paper enhances the current understanding of the tourist satisfaction-tourist loyalty link and provides important insights into tourism management.
The Effects of Issue Leadership on Hotel Employee Creativity in China and Korea: The Double-Mediating Roles of Psychological Empowerment, Trust in Leader, and Organizational Commitment
Authors:   The Korea International Trade Research Institute, Zhong Zhi-Chen , Choi Jeong-Ja , GAMANAMU GAMANAMU
Published: May 2024

Purpose - This research focuses on creativity and leadership as key roles of organizational success. While creativity plays a crucial role in the success of companies, leadership is a significant predictor of employee and organizational creativity. The purpose of this research is to examine the impact of issue leadership on hotel employee creativity, with a specific focus on Korea and China, and determine whether issue leadership is effective on the creativity of hotel employees via empowerment, trust in leader, and organizational commitment in both countries.
Design/Methodology/Approach - The research model describes psychological empowerment, trust in leader, and organizational commitment as mediators between issue leadership and employee creativity. A questionnaire survey was conducted with hotel employees in Gyeogju and Busan in Korea, and Yunnan province in China. A total of 241 samples from Korea and 235 samples from China were analyzed using SPSS and AMOS.24 to examine the relationships between issue leadership and creativity, which were double-mediated by psychological empowerment, trust in leader, and organization commitment.
Findings - The findings indicate that issue leadership has a positive effect on the creativity of hotel employees in both Korea and China. This study also reveals that in the Korean group, issue leadership has a greater impact on creativity in fostering the double-mediating roles of psychological empowerment and organizational commitment, whereas in the Chinese group, issue leadership has a greater impact on creativity in fostering the double-mediating roles of trust in leader and organizational commitment.
Research Implications - This research has both academic and practical implications for hotel operations in Korea and China, providing valuable insights into the role of issue leadership in promoting employee creativity.
The Analysis of Effects of GRDP and Trade on Energy Consumption in South Korea’s Metropolitan Cities and Provinces
Authors:   The Korea International Trade Research Institute, Kang Hyun-Soo
Published: May 2024

Purpose - This study aims to analyze the impact of gross regional domestic product (GRDP) and trade on the energy consumption of 16 metropolitan cities and provinces in Korea from 2007 to 2020.
Design/Methodology/Approach - This study was based on panel data for each metropolitan city and province, and it investigated the impact on energy consumption through a panel analysis model, panel threshold regression model, and seemingly unrelated regression (SUR) model.
Findings - The increase in GRDP served as a factor in increasing energy consumption in the region, and when considering exports, the increase in GRDP led to an increase in energy consumption. Also, above the trade threshold, the increase in energy consumption responded sensitively to the increase in trade, and the impact on energy consumption varied depending on regional GRDP and the increase in trade.
Research Implications - Depending on regional characteristics, the impact of GRDP and trade on energy consumption is somewhat mixed, so energy consumption policies according to regional characteristics are needed. In addition, regional energy consumption tends to increase as trade increases. Considering the proportion of trade in our economy, additional policies, such as improving the efficiency of the production process and expanding the use of eco-friendly energy, are required in the future.
A Study on the Determinants of Overseas Intention of Korean Medical Institutions
Authors:   The Korea International Trade Research Institute, Kim Dae-Geun
Published: May 2024

Purpose - The purpose of this study is to identify factors influencing overseas expansion from various perspectives through prior research, and to identify the impact of sub-factors on the intention of the overseas expansion of medical institutions.
Design/Methodology/Approach - In this study, factors influencing overseas expansion were classified into a resource-based view, an industrial organization view, and view of CEO characteristics, and were empirically identified through multiple regression analysis.
Findings - As a result of analyzing the intention of domestic medical institutions to advance overseas, it was confirmed that in resource planning from a resource-based perspective, a department dedicated to overseas expansion had a positive (+) effect, market size and government support policies had a positive (+) effect from an industrial organization perspective, and experience and entrepreneurship from a managerial perspective .
Research Implications - The overseas expansion of medical institutions has many different parts in the export and overseas expansion direction of general companies. In the public medical field of health and medical care, the overseas expansion of medical institutions has a strong aspect of profit generation, and the number of medical institutions interested in overseas expansion is inevitably small due to environmental uncertainty. In this respect, the results of this study, which analyzed the impact on the intention to advance into medical institutions, can be used in terms of creating an ecosystem for the overseas expansion of medical institutions by the government and supporting institutions.
ESG Management Strategy in the Medical Device Cluster of Chungcheongbuk-do: Based on the Diamond Model and AHP Analysis
Authors:   The Korea International Trade Research Institute, Li Qiao , Jung Jin-Sup
Published: May 2024

Purpose - The global trend of ESG has deepened. Accordingly, this study aims to explore several key elements of how Korea's Chungcheongbuk-do medical device industrial cluster can continue to strengthen its sustainable competitiveness by combining elements of ESG management in the mid- to long-term.
Design/Methodology/Approach - This study uses the diamond model and existing literature to select important elements in a strategy for the sustainable growth of the medical device industry cluster. In addition, the AHP method was used to analyze the ranking and importance of important elements.
Findings - Firstly, in the main items of the overall evaluation criteria, the ranking is as follows: Management environment-ESG, Factor conditions-ESG, Demand conditions-ESG, and Related and supporting fields-ESG. Secondly, in all the main individual detailed items, Importance was shown in the following order: Establishment of ESG governance, technology development supply, medical institution ESG demand, high-quality talent training, corporate ESG demand, and the construction of a convergence win-win platform. Therefore, a strategic focus should be placed on these sectors.
Research Implications - This study integrated cluster, ecosystem innovation, medical device industry, ESG, and sustainable management with Porter’s diamond model. AHP analysis was also conducted for the mid- to long-term ESG strategy of the overall medical device cluster. Specifically, results showed that cooperation networks between industry, academia, research institutes, and hospitals were emphasized at the innovation ecosystem level. This will lead to the revitalization of related industries and contribute to sustainable regional innovation and economic growth.
Exploring the Influence of Green Product Attributes on Consumer Perceived Value and Purchase Intention: Taking Green Household Appliances as an Example
Authors:   The Korea International Trade Research Institute, Liang Cuijing , Ding Jiangmin , Lee Eon-Seong
Published: May 2024

Purpose - This study takes green household appliances as an example to investigate how green product attributes impact consumers’ perceived value and purchase intention. It further explores the moderating role of consumer innovativeness and mediating role of perceived value.
Design/Methodology/Approach - The research participants were 259 Chinese consumers, whose relevant data were collected through a questionnaire survey. The data analysis was performed with structural equation modeling using SmartPLS.
Findings - The results indicate that green products’ core (functional and value-for-money) and peripheral (emotional and social) green attributes both positively influence consumer perceived value, which, in turn, positively affects their purchase intention. Perceived value plays a positive mediating role between green product attributes and consumer purchase intention. However, the moderating effect of consumer innovativeness is not significant.
Research Implications - First, this study explores the impact of green product attributes on consumer purchase intention from multiple dimensions, enriching empirical research on green product attributes. This provides a theoretical foundation for enterprises to strategically implement green product marketing strategies. Furthermore, based on the research findings, we recommend that relevant enterprises emphasize green product and technology research and development, guiding consumers toward environmentally friendly purchasing behavior with targeted approaches. This, in turn, will lead to ongoing development of the green market and green consumption.
Analysis of the Demand Determinants of Busan International Liquor and Wine Exhibition Visitors
Authors:   The Korea International Trade Research Institute, Han Eun-Jin
Published: May 2024

Purpose - The purpose of this study is to provide the characteristics of exhibition fair consumers, and to provide practical measures to establish appropriate marketing strategies.
Design/Methodology/Approach - This study applied the service quality of the exhibition fair as an independent variable for visitors of the 2023 Busan International Liquor & Wine Expo held in BEXCO, Busan, and analyzed the TP model as a research method. In addition, the amount of annual participation was estimated and analyzed as a dependent variable.
Findings - Looking at the results of the study, as a result of the analysis of the attribute factors of service quality selection at the exhibition, it was found that it had a positive effect on diversity and comfort, accessibility and convenience facilities, quality and fidelity, and the benefit and value of information. In addition, it can be seen that out of all the socioeconomic characteristics variables, job factor is the only one that had a positive effect.
Research Implications - The results of the study hoped to provide the characteristics of consumers by analyzing demand determinants using the service quality selection attribute of the exhibition, and at the same time provide practical measures to establish appropriate marketing strategies.
The Effect of Resource-Based Elements on Relationship Learning and Exhibition Performance in Trade Exhibition Participating Companies
Authors:   The Korea International Trade Research Institute, Kim Byeung-Ho , Park Yeung-Kurn , Seo Chang-Ok
Published: May 2024

Purpose - This study sought to investigate the relationship between resource-based elements (trust, relationship commitment, transaction-specific assets), and relationship elements that trade exhibition participating companies can utilize internally, relationship learning, and trade exhibition performance (sales performance, non-sales performance).
Design/Methodology/Approach - Data collection was conducted through e-mail and in-person interviews from November 10 to November 30, 2023, targeting executives and salespeople of companies participating in the trade exhibition. A total of 300 copies were distributed, and 259 copies, excluding insincere responses, were used in the final analysis.
Findings - As a result of the analysis, first, it was found that relationship learning also improves as the resource-based elements of trust and transaction-specific assets of companies participating in trade exhibitions increase. Second, as exhibition relationship learning improved, exhibition performance improved, which showed the same results for both sales and non-sales performance. Third, as a result of analyzing the mediating effect of relationship commitment in the relationship between resource-based factors and exhibition performance, it was confirmed that exhibition performance increases when resource-based factors go through relationship commitment.
Research Implications - Through this study, the relative influence of resource-based elements and the relationship learning of trade exhibition participating companies on exhibition performance was confirmed, and it was found that resource-based elements and relationship learning are important for trade exhibition participating companies to achieve strategic exhibition performance.
The Impact of Cosmetics Brand Collaboration Product Characteristics on Purchase Intention: Focusing on the Mediating Effect of Brand Loyalty
Authors:   The Korea International Trade Research Institute, Kim Min-Sun , Hong Won-Ki
Published: May 2024

Purpose - This research aims to analyze whether brand loyalty has a mediating effect on the impact of collaboration product characteristics, which companies have recently been actively utilizing, on consumer purchase intention.
Design/Methodology/Approach - This research conducted an online survey of 202 male and female adults primarily in their twenties. The main variables are collaboration product characteristics, purchase intention, and brand loyalty. To analyze the relationship of influence, regression analysis, frequency analysis, and reliability analysis were conducted utilizing SPSS, and mediation effect analysis was executed utilizing Process Macro Model 4.
Findings - Among the collaboration product characteristics, originality, aesthetics, and scarcity had a significant impact on purchase intention. It was confirmed that brand loyalty had a significant effect on purchase intention. Brand loyalty also was confirmed to have a partial mediating effect on the impact of collaboration product characteristics on purchase intention.
Research Implications - First, collaboration was identified as a major factor influencing purchase intention and brand loyalty. Second, these results proved that brand loyalty is a major factor affecting consumer behavior, even within collaboration strategies. Third, in order to promote consumer purchase intention, companies need not only a collaboration strategy that increases product competitiveness but also a marketing strategy that strengthens brand loyalty formed through interactions with consumers.
The Effects of Perceived Risk and the Participation Motivation of Camping Activities on Attitudes and Behavioral Intention: Focused on Chinese Campers
Authors:   The Korea International Trade Research Institute, Wang Peng , Noh Jeong-Hee
Published: May 2024

Purpose - The camping market in China has demonstrated consistent growth in recent years, with a continued expansion observed. Particularly, following the COVID-19 pandemic, heightened concern for safety during leisure activities has become prevalent among individuals. This study aimed to ascertain the motivational factors driving Chinese individuals to engage in camping activities, and assess the influence of perceived risk on camper attitudes and behavioral intentions.
Design/Methodology/Approach - Data analysis encompassed a sample of 258 sets collected from campers that visited three campsites situated in Qinhuangdao, China.
Findings - The findings revealed that all perceived risk factors associated with camping activities significantly impacted individual attitudes. Furthermore, among the motivating factors for participation, aspects such as affinity for nature and escapism from daily routines were identified as influential in attitudes toward camping activities. The study confirmed a substantial relationship between the attitude toward camping activities and behavioral intentions.
Research Implications - The outcomes underscore the necessity for camping operators to furnish campers with strategies to manage risks and educational initiatives encompassing safe camping practices and emergency protocols. Consequently, this study offers insights into the future trajectory of the camping industry, emphasizing the imperative of amalgamating safety measures with a rich natural experience.