bluuebunny/crossref_metadata_2025 huggingface dataset:
The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China
Authors: Guo Tongze , Li Runkui , Xiao Zhen , Cai Panli , Guo Jingxian , Fu Haiyu , Zhang Xiaoping , Song Xianfeng
Published: January 2024

Water scarcity is a significant challenge in China, and the South-to-North Water Diversion Project (SNWDP) aims to address the water deficit in the northern region. This study analyses Landsat 5/7/8 remote sensing imagery from 2001 to 2020 on the Google Earth Engine (GEE) cloud platform to assess the impact of the SNWDP on surface water bodies in water-receiving areas. Moreover, by integrating MODIS evapotranspiration data and ERA5 meteorological reanalysis data, this study comprehensively assesses the SNWDP’s contribution to varied surface water body changes. Using an improved multi-temporal water frequency method, this study extracts max, seasonal, and year-long water surface areas. The results reveal that Beijing and Henan provinces have experienced significant increases in water surface areas post-SNWDP, with their max water surface area growing at a rate of 10.42 km2/yr and 33.49 km2/year, respectively. However, water surface areas in several provinces, especially those along the east route, were not observed to increase. The spatially detailed Mann–Kendall test indicates that the expansion of year-long water bodies is mostly concentrated near the central route project, revealing spatial heterogeneity in the water replenishment effect. Cropland and impervious surfaces are the main contributors to transfers in and out of water bodies. Meteorological and water use factors for spatial variations in water changes are also identified. These findings provide insights into the varied hydrological consequences of the SNWDP and contribute to the evaluation and management of similar large-scale water diversion projects around the world.
Experimental Study on Measuring and Tracking Structural Displacement Based on Surveillance Video Image Analysis
Authors: Ni Tongyuan , Wang Liuqi , Yin Xufeng , Cai Ziyang , Yang Yang , Kong Deyu , Liu Jintao
Published: January 2024

The digital image method of monitoring structural displacement is receiving more attention today, especially in non-contact structure health monitoring. Some obvious advantages of this method, such as economy and convenience, were shown while it was used to monitor the deformation of the bridge structure during the service period. The image processing technology was used to extract structural deformation feature information from surveillance video images containing structural displacement in order to realize a new non-contact online monitoring method in this paper. The influence of different imaging distances and angles on the conversion coefficient (η) that converts the pixel coordinates to the actual displacement was first studied experimentally. Then, the measuring and tracking of bridge structural displacement based on surveillance video images was investigated by laboratory-scale experiments under idealized conditions. The results showed that the video imaging accuracy can be affected by changes in the relative position of the imaging device and measured structure, which is embodied in the change in η (actual size of individual pixel) on the structured image. The increase in distance between the measured structure and the monitoring equipment will have a significant effect on the change in the η value. The value of η varies linearly with the change in shooting distance. The value of η will be affected by the changes in shooting angle. The millimeter-level online monitoring of the structure displacement can be realized using images based on surveillance video images. The feasibility of measuring and tracking structural displacement based on surveillance video images was confirmed by a laboratory-scale experiment.
Development of a Nuclear Fuel Dissolution Monitor Based on Raman Spectroscopy
Authors: Lascola Robert , O'Rourke Patrick E. , Immel David M.
Published: January 2024

The processing of spent nuclear fuel and other nuclear materials is a critical component of nuclear material management with implications for global security. The first step of fuel processing is dissolution, with several charges of fuel sequentially added to a batch of solvent. The incomplete dissolution of a charge precludes the addition of the next charge. As the dissolution takes place in a heated, highly corrosive and radiological vessel, direct monitoring of the process is not possible. We discuss the use of Raman spectroscopy to indirectly monitor dissolution through an analysis of the gaseous emissions from the dissolver. Challenges associated with the implementation of Raman spectroscopy include the composition and physical characteristics of the offgas stream and the impact of operating conditions. Nonetheless, we observed that NO2 concentrations serve as a reliable indicator of process activity and correlate to the amount of fuel material that remains undissolved. These results demonstrate the promise of the method for monitoring nuclear material dissolution.
A 3D Point Cloud Classification Method Based on Adaptive Graph Convolution and Global Attention
Authors: Yue Yaowei , Li Xiaonan , Peng Yun
Published: January 2024

In recent years, there has been significant growth in the ubiquity and popularity of three-dimensional (3D) point clouds, with an increasing focus on the classification of 3D point clouds. To extract richer features from point clouds, many researchers have turned their attention to various point set regions and channels within irregular point clouds. However, this approach has limited capability in attending to crucial regions of interest in 3D point clouds and may overlook valuable information from neighboring features during feature aggregation. Therefore, this paper proposes a novel 3D point cloud classification method based on global attention and adaptive graph convolution (Att-AdaptNet). The method consists of two main branches: the first branch computes attention masks for each point, while the second branch employs adaptive graph convolution to extract global features from the point set. It dynamically learns features based on point interactions, generating adaptive kernels to effectively and precisely capture diverse relationships among points from different semantic parts. Experimental results demonstrate that the proposed model achieves 93.8% in overall accuracy and 90.8% in average accuracy on the ModeNet40 dataset.
MMVFL: A Simple Vertical Federated Learning Framework for Multi-Class Multi-Participant Scenarios
Authors: Feng Siwei , Yu Han , Zhu Yuebing
Published: January 2024

Federated learning (FL) is a privacy-preserving collective machine learning paradigm. Vertical federated learning (VFL) deals with the case where participants share the same sample ID space but have different feature spaces, while label information is owned by one participant. Early studies of VFL supported two participants and focused on binary-class logistic regression problems, while recent studies have put more attention on specific aspects such as communication efficiency and data security. In this paper, we propose the multi-participant multi-class vertical federated learning (MMVFL) framework for multi-class VFL problems involving multiple parties. By extending the idea of multi-view learning (MVL), MMVFL enables label sharing from its owner to other VFL participants in a privacy-preserving manner. To demonstrate the effectiveness of MMVFL, a feature selection scheme is incorporated into MMVFL to compare its performance against supervised feature selection and MVL-based approaches. The proposed framework is capable of quantifying feature importance and measuring participant contributions. It is also simple and easy to combine with other communication and security techniques. The experiment results on feature selection for classification tasks on real-world datasets show that MMVFL can effectively share label information among multiple VFL participants and match the multi-class classification performance of existing approaches.
Transmit Beamforming Design Based on Multi-Receiver Power Suppression for STAR Digital Array
Authors: Lin Tairan , Wei Xizhang , Lai Jingtong , Xie Mingcong
Published: January 2024

The simultaneous transmit and receive (STAR) array system provides higher radiation gain and data rate compared to traditional radio system. Because of the various mutual couplings between each pair of transmit and receive elements, it is a great challenge to suppress the incident self-interference power at multiple receive elements, which is usually much higher than the desired signal of interest (SoI) power and causes the saturation of receive links and the distortion of the digital SoI. In this paper, we propose an optimized method for transmit beamforming based on radiation power constraints and transmit power control. Through adaptive transmit beamforming, high isolation between the transmit array and each receive link is achieved, minimizing the self-interference power at each receiving element. This method effectively reduces the self-interference power, avoiding distortion of the SoI digital signal caused by limited-bit analog-to-digital converters (ADCs). Simulation results demonstrate that this optimized transmit beamforming method can achieve more than 100 dB effective isotropic isolation (EII) on a 32-element two-dimensional phased array designed in HFSS, reducing the maximum incident self-interference power at the receive channels by approximately 35 dB, while effectively controlling the attenuation of the transmit gain. We also present the advantages in receive subarray isolation and lower ADCs digits under the transmit ABF method.
A Novel Method for Precision Measurement and Result Optimization of Detuning Angle for KDP Crystals
Authors: Wu Honghong , Pei Guoqing , Chu Dongya , Wu Yuting , Gu Han , Wu Siyu , Wang Chenzhuo , Zhu Wanlai , Zhou Hai , Hu Dongxia
Published: January 2024

In this paper, we investigate the theory of energy distribution when divergent light undergoes harmonic conversion in KDP crystals, and based on this theory, we design and construct a precision measuring instrument for the detuning angle of (KDP) Crystals (MIDC). The device can obtain the detuning angle of the crystal by a single measurement with an average measurement error of 72.78 urad. At the same time, it also has the function of scanning the full aperture of the crystals. Using the MIDC, it is possible to quickly measure the KDP crystal at a single point and quickly scan the crystal detuning angle at full aperture. In addition, we conduct a theoretical study on the variation of detuning angle caused by gravity-influencing factors under online conditions, propose an optimization formula for the offline measurement results of detuning angle, and calculate the optimized values of detuning angle for two kinds of crystals under 45° online conditions. We finally study the error source of the MIDC device, analyze the trend of the influence of positioning errors of the crystal and optical elements on the detuning angle measurement results, and provide theoretical support for the error monitoring and correction of MIDC.
Elution of Divalent Cations from Iron Ore Mining Waste in an Indirect Aqueous Mineral Carbonation for Carbon Capture and Storage
Authors: Soomro Muhammad Hameer , Mohd Kusin Faradiella , Mohamat-Yusuff Ferdaus , Nik Daud Nik Norsyahariati
Published: January 2024

Mining waste is generated in vast quantities globally, which can have negative environmental consequences. This study highlights the utilization of iron ore mining waste as feedstock material in the preparatory step of an indirect aqueous mineral carbonation for carbon sequestration. The role of reactive cations (Ca2+, Mg2+, and Fe2+) was investigated in view of their elution behavior to improve carbonation efficiency. An elution experiment was carried out for the divalent cations using different acids (oxalic, HCl, acetic, and formic acid) at different concentration solutions (up to 1.5 M) and times (up to 100 min) at ambient temperature. The initial analysis confirmed the presence of divalent cations in the sample. The elution approach at ambient temperature resulted in the elution efficiency of Fe2+ (30.4%), Mg2+ (54%) using oxalic acid, and Ca2+ (98%) using HCl at a relatively short time between 50 and 100 min. It was found that for the iron ore mining waste, oxalic acid and HCl were best suited as elution agents for the Fe2+ and Mg2+, and Ca2+, respectively. The CO2 sequestration potential was calculated to be 131.58 g CO2/kg residue. A further carbonation step using a complexing agent (1,10 phenanthroline) confirmed the formation of siderite and magnesite along with phenanthroline hydrates. Findings have shown that the indirect mineral carbonation of the iron mining waste with complexing agent might improve carbonation efficiency, thus indicating that this material is useful for long-term carbon capture and storage applications.
Regional Disparities and Dynamic Distribution in the High-Quality Development of the Marine Economy
Authors: Zhang Hongfeng , Wang Xiaoyang
Published: January 2024

The maritime economy is gradually becoming a new engine for the high-quality development of the economic and social sectors. However, due to factors such as geographical location and natural endowments, there are significant regional disparities, making it challenging for the national maritime economy to achieve balanced development. Therefore, this paper constructs an index evaluation system for the high-quality development of the maritime economy. It calculates the comprehensive index and subsystem indices of the high-quality development of the maritime economy in 11 coastal provinces (cities and districts) in China from 2008 to 2020 and examines their regional disparities and dynamic evolution. The study reveals the following: (1) The high-quality development levels of the maritime economy in coastal provinces show a fluctuating upward trend, with different dimensions of advantages in each province. (2) The overall regional disparities exhibit a development trajectory of expansion followed by contraction, with a general trend in narrowing disparities. Currently, the southern maritime economic zone has the greatest internal differences, and the gap between the southern and northern maritime economic zones is relatively pronounced. (3) Significant fluctuations are observed in the disparities in high-quality development of the maritime economy between China and the three major maritime economic zones. The internal gaps within the northern and southern maritime economic zones have expanded to varying degrees, whereas the gaps within the eastern maritime economic zone have shown some convergence. (4) Inter-group mobility among provinces in different states of high-quality development of the maritime economy is low, and provinces in a low-level state exhibit a noticeable “low-end lock-in” phenomenon. This paper, through a timely spatial and temporal analysis of China’s high-quality development process of the maritime economy, aims to provide policy guidance for advancing the high-quality development of the maritime economy.
General Randić Index of Unicyclic Graphs and Its Applications to Drugs
Authors: Altassan Alaa , Imran Muhammad
Published: January 2024

In this work, we determine the maximum general Randić index (a general symmetric function of vertex degrees) for η0≤η<0 among all n-vertex unicyclic graphs with a fixed maximum degree Δ and the maximum and the second maximum general Randić index for η0≤η<0 among all n-vertex unicyclic graphs, where η0≈−0.21. We establish sharp inequalities and identify the graphs attaining the inequalities. Thereby, extremal graphs are obtained for the general Randić index, and certain open gaps in the theory of extremal unicyclic graphs are filled (some open problems are provided). We use computational software to calculate the Randić index for the chemical trees up to order 7 and use the statistical (linear regression) analysis to discuss the various applications of the Randić index with the physical properties of drugs on the said chemical trees. We show that the Randić index is better correlated with the heat of vaporization for these alkanes.
Voltage-Gated Sodium Channel Inhibition by µ-Conotoxins
Authors: McMahon Kirsten L. , Vetter Irina , Schroeder Christina I.
Published: January 2024

µ-Conotoxins are small, potent pore-blocker inhibitors of voltage-gated sodium (NaV) channels, which have been identified as pharmacological probes and putative leads for analgesic development. A limiting factor in their therapeutic development has been their promiscuity for different NaV channel subtypes, which can lead to undesirable side-effects. This review will focus on four areas of µ-conotoxin research: (1) mapping the interactions of µ-conotoxins with different NaV channel subtypes, (2) µ-conotoxin structure–activity relationship studies, (3) observed species selectivity of µ-conotoxins and (4) the effects of µ-conotoxin disulfide connectivity on activity. Our aim is to provide a clear overview of the current status of µ-conotoxin research.
Streptococcus suis Research Update: Serotype Prevalence and Antimicrobial Resistance Distribution in Swine Isolates Recovered in Spain from 2020 to 2022
Authors: Petrocchi Rilo Máximo , Gutiérrez Martín César Bernardo , Acebes Fernández Vanessa , Aguarón Turrientes Álvaro , González Fernández Alba , Miguélez Pérez Rubén , Martínez Martínez Sonia
Published: January 2024

This study aimed to update the Streptococcus suis serotype distribution in Spain by analysing 302 clinical isolates recovered from diseased pigs between 2020 and 2022. The main objectives were to identify prevalent serotypes, differentiate specific serotypes 1, 14, 2, and 1/2, investigate specific genotypic and phenotypic antimicrobial resistance features, and explore associations between resistance genes and phenotypic resistances. Serotypes 9 (21.2%), 1 (16.2%), 2 (15.6%), 3 (6%), and 7 (5.6%) were the most prevalent, whereas serotypes 14 and 1/2 corresponded with 4.3% and 0.7% of all isolates. Antimicrobial resistance genes, including tet(O), erm(B), lnu(B), lsa(E), tet(M), and mef(A/E), were analysed, which were present in 85.8%, 65.2%, 7%, 7%, 6.3%, and 1% of the samples, respectively. Susceptibility testing for 18 antimicrobials revealed high resistance levels, particularly for clindamycin (88.4%), chlortetracycline (89.4%), and sulfadimethoxine (94.4%). Notably, seven significant associations (p < 0.0001) were detected, correlating specific antimicrobial resistance genes to the observed phenotypic resistance. These findings contribute to understanding the S. suis serotype distribution and its antibiotic resistance profiles in Spain, offering valuable insights for veterinary and public health efforts in managing S. suis-associated infections.
Factores de la cadena de suministro en ductos de aire para la industria automotriz
Authors: Delgado Meléndez Carlos Iván , Colin Martínez José Luis
Published: January 2024

Este artículo describe el estudio de algunos factores clave para la evaluación de proveedores dentro de la industria automotriz tomando como referencia los ductos de aire acondicionado. Se analizaron puntos como cadena de suministro, impactos de los autos eléctrico, procesos de manufactura y los elementos internos para la aprobación de proveedores. Se tomó un caso de estudio donde se utilizaron dos estrategias para evaluar a los proveedores, la primera desde el punto de vista del porcentaje de participación en él y la segunda de acuerdo con los requerimientos multidisciplinarios y juicio de expertos que involucra trabajo diario con los proveedores. Una de las herramientas principales para la evaluación fue el cambio de medición cualitativa a cuantitativo. Es necesario resaltar que el entendimiento de los factores en la cadena de suministro y la admisión de nuevos proveedores son decisiones en equipo, así como las estrategias de desarrollo de proveedores se deben de establecer a largo plazo.
Interactive seminar as a tool for developing professional competencies and enhancing students’ research activities in the discipline of life safety.
Authors: Polyakov E. A.
Published: January 2024

The article deals with the use of interactive seminar model for the development of professional competencies and activation of scientific activity of students in the discipline “Life Safety”. Traditional formats of seminars in higher education have their disadvantages. The interactive workshop model developed by the author, using the “Workshop” module in the Moodle learning management system, includes such elements as discussions, collective assessment, small group work, surveys, questionnaires and webinars. These activities promote critical thinking, collaboration, and active student participation. This model addresses the shortcomings of traditional seminars and improves the quality of research papers, deepens the understanding of compulsory disciplines and prepares students for scientific endeavors.
Development of a toolkit for assessing the functional purpose of assets of commercial organizations: theoretical and methodological aspect.
Authors: Manuylenko V. V. , Galazova M. V.
Published: January 2024

To objectively determine the role of assets in the business of commercial organizations, to measure their value, it is important to disclose their functional purpose and use the appropriate tools for its evaluation. Goal. The purpose of the study is to substantiate and develop tools for assessing the functional purpose of assets of commercial organizations. In the course of the research, the works of Russian and foreign authors were studied, classified into those who identify assets and financial resources (N.I. Berzon, I.A. Blank, G.S. Gabidenova, A. Damodaran, V.V. Kovalev, V.V. Korshunov, M.V. Livson, M.R. Matthews, M.H.B. Perera, M.A. Eskindarov) commercial organizations, and vice versa. Recognition of assets as an independent economic category necessitates the formation of tools for their assessment in commercial corporate organizations. Based on the analysis of debatable aspects, the functional purpose of assets of commercial organizations is determined, including: measurement of the value of the organization’s economic turnover; characteristics of accumulated potential; participation of assets in achieving sustainable capital formation; protection against the risk of loss of liquidity by highly liquid assets exceeding the min mark, guaranteeing the safety margin of equity; production; influence on the level of risky activity of the organization; direct participation in the assessment of its financial condition. As a result, a methodological toolkit for assessing their functional purpose has been developed, which provides for the distribution of the established ranges of values of financial indicators describing the functional role of assets by phases of the economic cycle (the participation of assets in achieving sustainable capital formation – the stability of sources of asset formation, financial tension, autonomy; production – indicators of turnover and profitability of assets; influence on the level of risk activity – capital multiplier, the share of the most risky and non-performing assets in their total aggregate, etc.) based on the professional judgment of specialists.
Aleitamento materno no sistema carcerário brasileiro: uma revisão sistemática
Authors: Woide Luciele Kauana , Barros Vitória Neves de , Medeiros Gabriely Quintana de , Haas Patricia
Published: January 2024

Introdução. O aleitamento materno permite o maior vínculo entre mãe e neonatos, envolve aspectos emocionais, psicológicos e orgânicos. No que se refere às mulheres detentas que precisam amamentar na prisão, além da vulnerabilidade, encontram-se diante de um local menos propício ao desenvolvimento afetivo, motor e psicossocial dos neonatos. Objetivo. Verificar as condições das mulheres que amamentam nos presídios do Brasil. Método. As buscas por artigos científicos aconteceram nas bases de dados eletrônicas MEDLINE (Pubmed), LILACS, SciELO, SCOPUS, WEB OF SCIENCE e Google Scholar, sem restrição de idioma, localização ou período de publicação. Utilizou-se como estratégia de busca a combinação de descritor e operador booleano: (breastfeeding) and (prisons) and (Brazil).  Resultados. Foram incluídos dois estudos qualitativos, os quais buscaram inferir sobre o aleitamento materno no sistema prisional brasileiro a partir da visão das mulheres que amamentam na prisão. Os estudos destacam a falta de autonomia da nutriz para a tomada de decisão consciente, bem como a interação ineficiente entre as mulheres e os profissionais de saúde, que revelaram não estarem preparados para acolher e apoiar adequadamente as mães que amamentam neste ambiente. Conclusão. A prática do aleitamento materno no sistema carcerário enfrenta desafios importantes que rompem o vínculo entre a mãe e o neonato. Destaca-se a necessidade da promoção e proteção à amamentação no ambiente carcerário e o preparo dos profissionais de saúde para acolher e instruir as mães nesse sistema.
Avaliação funcional na Polineuropatia Desmielinizante Inflamatória Crônica: um relato de caso
Authors: Corôa Hugo Miranda de Souza , Andrade Drielle Ildete Souza de , Conceição Ana Beatriz Souza da , Rêgo Isabela Natália de Souza , Diniz Ana Laura de Fátima Sampaio , Herculano Anderson Manoel , Jacob Mellina Monteiro , Moraes Suellen Alessandra Soares de
Published: January 2024

Introdução. A polineuropatia desmielinizante inflamatória crônica (CIDP) é uma doença rara que afeta os nervos periféricos, atingindo a bainha de mielina, causando alterações na força, equilíbrio, mobilidade funcional e sensibilidade. Não existem artigos que descrevam uma avaliação funcional abrangente para a CIDP. Objetivo. Descrever o caso de uma paciente diagnosticada com CIDP e fornecer um guia para avaliação funcional. Relato de Caso. Uma mulher de 25 anos diagnosticada com CIDP foi avaliada e monitorada por profissionais de fisioterapia em um projeto de extensão universitária. Como manifestação funcional inicial, apresentou dificuldade em usar sapatos abertos, ocorrência de cãibras, parestesia bilateral no antepé, desequilíbrio na postura bípede e fraqueza muscular. Para a avaliação funcional, foi proposta a dinamometria manual, o Teste de Pegada de Nove Furos, o sinal de Froment, o teste de levantar e andar, o teste de Romberg clássico e Tandem, a avaliação da sensibilidade tátil, térmica, dolorosa e vibratória e o questionário de qualidade de vida Short form 36. Após a avaliação, foram identificados valores abaixo do normal para a força de preensão em ambas as mãos, teste de Romberg positivo, hipoestesia tátil, térmica e vibratória, bem como prejuízo na qualidade de vida. Conclusão. A avaliação funcional proposta foi abrangente para contemplar as principais deficiências funcionais e limitações descritas em um caso típico de CIDP, possibilitando o planejamento e a definição de objetivos para a intervenção fisioterapêutica.
Drosophila ClC-c Is a Homolog of Human CLC-5 and a New Model for Dent Disease Type 1
Authors: Reynolds Carmen J. , Gillen Christopher M. , Burke Richard , Tsering Yula , Loucks Emi , Judd-Mole Sebastian , Dow Julian A.T. , Romero Michael F.
Published: January 2024

Key Points

Drosophila can be a model for Dent Disease type 1.

Drosophila Clc-C mutations function similar to human CLC-5 Dent 1 mutations.

Background

Drosophila serve as exceptional alternative models for in vivo and ex vivo research and may provide an avenue for in-depth investigation for human ClC-5 and Dent disease type 1 (DD1). The Drosophila ClC-c (CG5284) has sequence homology with human ClC-5 and is hypothesized to encompass similar functional and phenotypical roles with ClC-5 and variants that cause DD1.

Methods

Ion transport function and activity of Drosophila ClC-c and homologous DD1 variants were assessed by voltage clamp electrophysiology. Membrane localization was demonstrated in Drosophila expressing a GFP-labeled construct of ClC-c. Genetic expression of an RNAi against ClC-c mRNA was used to generate a knockdown fly that serves as a DD1 disease model. Tubule secretion of cations and protein were assessed, as well as the crystal formation in the Malpighian tubules.

Results

Voltage clamp experiments demonstrate that ClC-c is voltage-gated with Cl−-dependent and pH-sensitive currents. Inclusion of homologous DD1 mutations pathogenic variants (S393L, R494W, and Q777X) impairs ClC-c ion transport activity. In vivo expression of ClC-c-eGFP in Malpighian tubules reveals that the membrane transporter localizes to the apical membrane and nearby cytosolic regions. RNAi knockdown of ClC-c (48% decreased mRNA expression) causes increased secretion of both urinary protein and Ca2+ and increased occurrence of spontaneous tubule crystals.

Conclusions

Drosophila ClC-c shows orthologous function and localization to human ClC-5. Thus, Drosophila and ClC-c regulation may be useful for future investigations of Cl− transport, Ca2+ homeostasis, and urinary protein loss in DD1.
Forecasting Method for Optimal Diversification
Authors: Dare Jayeola , Patrick Aye O. , Oghenefejiro Akpodamure , Mary Thomas O.
Published: January 2024

Forecasting is a technique that uses historical data as inputs to make estimates that are predictive in determining the direction of future trends. The goal of investors is to make optimal choice that leads to minimization of risk and maximization of returns, but the method that leads to these objectives has been a challenge for investor. In this study, Black-Litterman model (BLM) is adopted and two forecasting methods; EGARCH and GARCH methods are used for two parameters of BLM; investor views and level of uncertainty. The aim of this paper is to investigate the best forecasting method to estimate BLM that would lead to minimum risk and maximum returns. The analysis of this paper shows that EGARCH method gives maximum expected returns and minimum risk.
The Effect of the Work-Life Balance of Medical Institution Workers on Organizational Effectiveness and Subjective Happiness
Authors:   Society of Occupational Therapy for the Aged and Dementia, Yang Gi-Yeong , Yong Mi-Hyun
Published: January 2024

Objective : This study confirmed the current status of work-life balance for workers at domestic medical institutions, and confirmed the direct and indirect relationship between organizational effectiveness and individual subjective happiness. Methods : Data was collected from September 3 to September 23, 2021, with a total of 300 surveys distributed. Among them, 227 surveys were ultimately used for analysis. The collected data were analyzed using statistical software, specifically SPSS 21.0 and Amos 22.0. The measurement tool was adapted based on previous research to be suitable for the circumstances of healthcare professionals. It consisted of a total of 39 items, categorized as follows: General Characteristics, Work-Life Balance, Emotional Labor, Job Stress), Job Satisfaction, Subjective Happiness. Results : The work-life balance of healthcare professionals was found not to significantly impact the profound emotional labor, but it was observed to reduce job stress. Additionally, emotional labor was identified as a decisive factor in decreasing job stress and increasing job satisfaction. Job stress not only diminishes job satisfaction but also has been confirmed as a factor decreasing subjective happiness. However, no direct relationship was found between emotional labor and subjective well-being. Conclusion : Studying the work-life balance of members in specialized service fields, such as healthcare services, not only provides insights into the current situation but also offers various theoretical perspectives in understanding the relationship between work-life balance and Organizational effectiveness.
Development of an Application for Improving the Visual Perception of the Elderly and its Usability Evaluation
Authors:   Society of Occupational Therapy for the Aged and Dementia, Kim Du-Ri , Jung Yu-Jin , Kim Gyeong-Ryong , Kim Young-Min , Kim Ji-Woo , Park Sung-Kyeong , Yang Yeong-Ae
Published: January 2024

Objective : This study aimed to develop the 'Find My Half' application, hereinafter referred to as the visual perception app, for improving the visual perception of the elderly. The research verified its usability and application satisfaction among the elderly and occupational therapists. Methods : The visual perception app was developed to enable visual perception training by identifying the whole form from viewing half of an image. The developed application underwent a two-month period of usability and satisfaction evaluation from July to September 2023. A total of 22 participants (including 12 occupational therapists and 10 elderly individuals) were involved in the assessment after using the visual perception app, evaluating its validity, convenience, usability, functionality, and ease of learning, as well as assessing improvement points and overall satisfaction. Results : The usability assessment employed a Likert 5-point scale. According to the usability evaluation, the elderly participants scored an average of 4.57±0.29 points, whereas the therapists scored an average of 3.53±0.20 points. Improvement suggestions were derived from the use of the application, and the satisfaction rating among the elderly averaged 4.30±1.25 points. Furthermore, the therapists' satisfaction scores averaged 3.17±0.72 points. Conclusion : The visual perceptual application developed in this study for improving the visual perception of the elderly showed positive results in terms of usability and satisfaction among both the elderly
users and occupational therapists. It is anticipated that further advancements, particularly in terms of enhancing audio guidance and usage instructions, will lead to more active application among the elderly, aiding in preventing difficulties in performing daily activities due to visual perceptual impairments.
A Critical Discourse Analysis of Education ODA Policy Narrative in South Korea’s Knowledge Sharing Program
Authors:   INSTITUTE FOR EDUCATIONAL RESEARCH, Kim Min Jung
Published: January 2024

This study examines how education ODA policy narrative has been delivered in the form of policy transfer through the Knowledge Sharing Program (KSP) from South Korea to partner countries and further explores what kind of education policy discourse is being formed in the process. To this end, a critical discourse analysis was conducted on 33 policy advisory reports of KSP projects in the education sector from 2005 to 2021. The results can be divided mainly into three dimensions. In terms of textual practice, the KSP reports deliver a tacit message that Korea's education policies and systems are superior to those of partner countries by repeatedly using specific vocabulary or reinforcing contrasting metaphors when describing the current educational state of Korea and partner countries. At the level of discursive practice, the forms of description tended to be particularly bureaucratic and stereotyped, simply listing information according to a consistent structure. Moreover, the content of the reports, in general, was characterized by lacking consideration of the different social contexts of the partner countries. In terms of socio-cultural practice, it was confirmed that the situational context in which the report was planned and written ─ as well as the political stance of the Korean government had a significant influence on the formation of the policy narrative. This study examined the trends, characteristics, problems, and limitations of Korean education ODA analyzed in previous studies from a new perspective of discourse formation and dissemination through critical discourse analysis of policy narratives. On that basis, this study suggests considerations essential for Korean education ODA to create a narrative with its own originality and expertise.
تأثير التنمية الرقمية على النمو الاقتصادي: أدلة تجريبية من بلدان عربية مختارة
Authors: Warrad Taleb Awad
Published: January 2024

الأهداف: الهدف الرئيسي للدراسة تحديد عوامل النمو الاقتصادي الحقيقي في المنطقة العربية مع التركيز على دور التطور الرقمي.
المنهجية: تستخدم الدراسة عينة زمنية مقطعية (160 مشاهدة) تغطي ثمانيَ دولٍ عربية ممن يتوفر عنها بيانات لكامل فترة الدراسة 2000-2020 مأخوذة من مصدر واحد هو قاعدة بيانات البنك الدولي. وتستخدم الدراسة نموذجاً قياسياً تم اختيار متغيراته استنادا الى نظرية النمو الكلاسيكي المحدثة ومدعوما بالدراسات التطبيقية السابقة في هذا المجال. وفي ضوء اختبارات السكون والتكامل المشترك تم تقدير معلمات النموذج بثلاث طرق بديلة هي طريقة العزم المعممة، وطريقة المربعات الصغرى المصححة كليا، وطريقة المربعات الصغرى العامة القابلة للتقدير.
النتائج: توصلت الدراسة إلى أنّ عوامل الإنتاج التقليدية تؤثر على معدلات النمو الاقتصادي في دول العينة المختارة وهذا التأثير ذو دلالة إحصائية، وفيما يلي نشير للعوامل المؤثرة وهي مُرتّبة حسب فعالية وقوة العلاقة: الانفتاح التجاري، إنتاجية العمل، الاستثمار، التقدم الرقمي، والتقدم التكنولوجي على التوالي. وفي ضوء أنّ مجموع المعاملات (المرونات) المقدرة يقل عن واحد صحيح يستنتج أنّ الإنتاج الكلي في هذه الدول يخضع لظاهرة تزايد التكاليف أو ما يعرف بوفورات الحجم المتناقصة في الأجل الطويل.
الخلاصة: في ضوء النتائج ولتعظيم النمو الاقتصادي الحقيقي توصي الدراسة صانعي القرار في الدول العربية باتباع مزيج من السياسات المتوازنة المحفزة للاستثمار والتحرير التجاري والإنتاجية والتطور الرقمي على التوالي.
EFFECT OF LOW-VOLTAGE -ELECTROSTATIC-FIELD (LVEF) ASSISTING REFRIGERATION ON PRESERVATION QUALITY OF STRAWBERRY
Authors: HOU Huaming , CUI Shuai , LI Dengming , LI Zhigang , CHEN Yisheng
Published: January 2024

In order to maintain the storage quality of strawberry after harvest and study the effect of low voltage electrostatic field (LVEF)-assisting refrigerated storage on strawberries quality, the study applied the low voltage electrostatic field (3kV 4±1℃ in LVEF group) to store strawberries in refrigeration environment, and setting refrigerated storage at 4±1°C as the control (CK group). The results showed that the freshness days of strawberries refrigerated by low voltage electrostatic field were twice as long as those of refrigerated group. The brightness and red-green degree of strawberries in LVEF group were 1.5 times and 2 times of those in CK group, respectively. The peak hardness of strawberry in LVEF group was 1.43 times of that in CK group, and the hardness decline range was 18.97% lower than that in CK group. The decreasing ranges of Total soluble solids (TSS), Titratable acids (TA) and Vitamin C(VC) in LVEF group were 43.91%, 60.01% and 46.17% lower than those in CK group, respectively. The increment of Malondialdehyde (MDA) of strawberries in LVEF group was 19.77% lower than that in CK group, and the activity peak of Superoxide dismutase (SOD) of strawberries in LVEF group was 1.22 times of that in CK group, and the decreasing range was 22.86% lower than that in CK group. After 10 days of storage, the weight loss rate and decay rate of strawberries in LVEF group and CK group were 16.69%, 15% and 70.65%, 59.45%, respectively. In conclusion, applying low voltage electrostatic field to refrigerated storage can effectively inhibit the quality deterioration of strawberries during refrigerated storage period.
COVID-19 Y LA TRANSICIÓN A LA MODALIDAD HÍBRIDA DISTANCIA- VIRTUAL: IMPLICACIONES PARA LA ESPAM-MFL, MANABÍ – ECUADOR
Authors: Ormaza Murillo María Piedad , Quijije Intriago Rosa María , Zambrano Cedeño Ana Isabel , Hernández Paz Kathia Stefany , Velásquez Zambrano Vinicio Sebastián
Published: January 2024

El evento pandémico y el consecuente confinamiento debido al COVID-19 forzaron a la educación a cambiar su modalidad, prácticamente a nivel mundial. Bajo esta premisa, el objetivo de esta investigación fue diagnosticar las implicaciones en la modalidad híbrida distancia – virtual en la ESPAM-MFL durante la pandemia de la COVID-19, para el fortalecimiento del subsistema formación. Se aplica una encuesta para recolectar los datos, avalada mediante el método Delphi y aplicada a los directivos y a los estudiantes de quinto y décimo semestre; las fortalezas y debilidades de las estrategias se enlistaron en una matriz FODA. Como resultado, se determinó el nivel de satisfacción de los directivos con la nueva modalidad y en correspondencia, la satisfacción estudiantil y otros elementos. El análisis FODA evidenció fortalezas tales como el afianzamiento del conocimiento para el uso de la tecnología y a su vez reconocen las debilidades en la conectividad, asistencia y concentración del estudiante. Del análisis de resultados, se contribuye a lograr una comprensión profunda sobre la trascendencia de la práctica de la enseñanza virtual, propiciando un enfoque orientador para mejorar la situación actual de la enseñanza en esta modalidad y sus futuras reformas. En conclusión, se debe reforzar la actitud y el control de la tecnología, haciendo uso de ellas con el apoyo del componente práctico del aprendizaje.
Implementasi Algoritma LSTM untuk Prediksi Harga Cabai Merah Keriting di Yogyakarta
Authors: Dwika Arieska Restu Harpian , Avianto Donny
Published: January 2024

Curly red chili is one of the horticultural crops with high economic value. Curly red chili can cause inflation because the price fluctuates greatly and tends to rise. The purpose of the research is to predict future prices quickly and accurately so that the government and consumers can take preventive action against existing problems. This research will use the LSTM algorithm and a dataset of curly red chili prices in Yogyakarta from October 9, 2017 to October 27, 2023. Based on the testing of this research, the best results obtained are by using a data division ratio of 70%: 30%, epoch 150, batch size 48, learning rate 0.001, number of neurons 30, activation function ReLU, and the optimization function Adam which produces a MAPE value of 3.6995%, and an accuracy of 96.3005%. It is hoped that this system can help related parties get accurate curly red chili price predictions.
Pencarian Rute Terpendek menggunakan Algoritma Genetika (Studi Kasus : Pengoptimalan Mobilitas Kota Salatiga Terhadap Kota-Kota Tetangga)
Authors: Isai Agustho , Nugroho Adi
Published: January 2024

The increase in population in an area has a significant impact on vehicle density in that area. The problem that often arises is traffic jams that occur on several routes at once. This factor is a common problem, which is quite disturbing to the public and road users. To overcome this problem, the genetic algorithm method is used as a solution method. This case study was set at the regional or city level around Salatiga City, including Ambarawa City, Semarang City, Boyolali City, Solo City and Magelang City. By using the genetic algorithm method, the fastest route with the shortest distance can be found. The Genetic Algorithm used in this research allows optimal shortest route search results. Apart from that, this research can also minimize the distance and travel time of several alternative routes obtained, thus providing significant benefits in developing the transportation system in the region.
Pengembangan Aplikasi Penjualan Tiket Acara Berbasis Website dan Mobile
Authors: Nugroho Muhammad Abdurrasyid , Fachrie Muhammad
Published: January 2024

This research presents innovation in the form of web-based and mobile event ticket sales applications using the PHP and Kotlin programming languages. The goal is to provide convenience to users in booking event tickets and registering events themselves from their homes. The application is designed to simplify the ticket booking process, improve accessibility, and provide an optimal user experience. Key features include a responsive user interface, being able to register new events, book desired events, view booked events, view registered events. By combining the advantages of PHP and Kotlin programming languages, this research has the potential to provide a more efficient and satisfying event ticket booking and sales experience for users.
Jalinan Komunikasi antara Public Relations dan Jurnalis dalam Membangun Media Relations Bermakna (Studi Kasus: Tokopedia dan Kompas.com, Sub-Rubik: Money)
Authors: Ramadhan Fardhal Virgiawan , Sudarmanti Rini
Published: January 2024

The relationship between PR and jurnalist has an important role in building sustainable media relations. This is because these two roles have a big influence in distributing information in the fields of economics, politics, social and even entertainment, lifestyle, trends, health, food, and finance. Tokopedia, as one of the largest e-Commerce in Indonesia, of course, must have a good relationship with journalist so that the news and information presented are interesting and do not affect the company's image. It is known that Tokopedia has a media relations relationship with Kompas.com, this is known from the news in the Money sub-rub. The aim of this research is to determine the relationship between PR and journalism between Tokopedia and Kompas.com in the Money sub-rub. The method used in this research is qualitative research methods with analytical descriptive research. The author will explain and analyze the relationship between PR and journalist on Tokopedia and Kompas.com. The results of this research show that for Tokopedia PR, the role of reporting information about the company will certainly be related to the company's image and reputation. Meanwhile, the role of Kompas.com journalist is not just to publish trending news but can provide and even help improve the company's image and reputation or even vice versa.
Pengembangan Aplikasi Jasa Cuci Sepatu Menggunakan Teknologi GPS Berbasis Android
Authors: Wibowo Martin Setyawan , Sutarman  , Diwandari Saucha
Published: January 2024

The shoe cleaning service business provides professional services in shoe care and is a solution for the community. The development of the shoe industry is the cause of this business continuing to grow, making business actors have to create new innovations in promotional media and service processes to be able to compete. This research aims to develop an Android-based shoe washing service application using Android Studio with the Java programming language and Firebase as a database. This application applies Global Positioning System (GPS) technology to support shuttle services. The system development method used is the waterfall method with 5 stages, namely analysis, design, implementation, testing and maintenance. The results of this research are that the Android-based shoe washing service application can be used as expected, making it easier for business actors to manage orders and making it easier for customers to order by getting pick-up and drop-off services.
Pengembangan Aplikasi Jasa Service Peralatan Elektronik Berbasis Android Menggunakan Payment Gateways
Authors: Ferdinan Rasid , Fachrie Muhammad
Published: January 2024

Along with the development of current technology such as TV repair, fans, refrigerators, washing machines, irons, air conditioners do not always function properly. There are times when a device is damaged and the user of the device will try to fix it by visiting a service or repair shop for televisions, fans, refrigerators, washing machines, irons and air conditioners. Of course, in this case the user will waste time and energy to go to the service place. Therefore, online booking services such as Grab and Gojek are needed. This online booking service specifically accepts the repair of televisions, fans, refrigerators, washing machines, irons, air conditioners, directly so that device users can save time and costs. With the selection of categories based on electronic products, it is easier for users if they want to find a service based on the electronic equipment that the user wants to repair. This application will be equipped with an online payment system integrated with Midtrans as a payment gateway service provider so that the transaction process becomes faster, easier and more practical.