bluuebunny/crossref_metadata_2025 huggingface dataset:
Cognitive Capacity and Aesthetics: The Influence of Visual Working Memory on Landscape Ink Painting Preference
Authors: Long Dingning , Chen Rongrong
Published: February 2024

The appreciation of art is not solely influenced by the inherent qualities of a work, such as image complexity, but also by external factors related to the observer, such as their visual working memory capacity, which allows for the real-time storage and manipulation of visual information. In this study, we sought to examine the predictive role of both intrinsic and extrinsic factors in aesthetic appreciation of landscape ink paintings. To assess the visual working memory capacity, we utilized the Visual-Object Working Memory task which required participants to sequentially encode, maintain, and determine whether the current visual pattern matched the one presented two trials ago. Following this, participants were presented with pairs of twenty landscape ink paintings and asked to indicate either their preference or perceived complexity for one painting over the other. Additionally, participants rated their aesthetic preference and perceived level of complexity for each painting on 6-point Likert scales. While our sample did not exhibit a bias towards complexity in their evaluation of paintings, we did discover that individuals with a greater visual working memory capacity tend to favor ink paintings with higher image entropy. These results align with the Processing Fluency Theory, suggesting that individuals typically have a more positive reaction to stimuli that are readily and smoothly processed. This research may have implications for the customization of art recommendation algorithms that take into account individual cognitive traits.
Novel feature extraction based on DCT-DOST features for classification of Digital Breast Tomosynthesis images into benign and malignant tumors
Authors: Moghadam Farangis Sajadi , Rashidi Saeid
Published: February 2024

Background: Breast cancer is caused by the uncontrolled growth of abnormal cells, resulting in a mass in the breast tissue. Early detection of the disease can significantly improve its prognosis and treatment outcome. Digital Breast Tomosynthesis, a three-dimensional imaging technology of the breast tissue, is emerging as a standard for breast imaging with improved screening and diagnostic results. The additional information obtained from tomosynthesis reduces the misleading effects of tissue overlap and improves the detection, identification, and localization of abnormalities. Benign-malignant breast tumors classification at early detection is a crucial step to improve diagnosis and prolong patient survival. The aim of this study is to classify benign-malignancy of masses in Digital Breast Tomosynthesis images based on new DCT-DOST and Radiomic features on an open database of TCIA that consist of 224 lesion bounding boxes.
Methods: In order to effectively obtain both DCT-DOST and Radiomics characteristics, a 2D central slice of the DBT image, which encompasses a substantial anatomical size of the breast tumor, was employed. In the pre-processing stage, rescale intensity method was used to improve contrast and image quality. After that, by using a binary mask, the mass of the breast tissue was subjected to segmentation. Then, using radiomic and DCT-DOST features, new features were extracted from the images. In addition, we also investigated the importance of feature selection and class balancing. By pooling the radiomics and DCT-DOST features into a hybrid feature set, we investigated the compatibility of these two sets with respect to benign malignancy prediction.
Results: Finally, for classification using Random Forest algorithm, K-Nearest Neighbor and Support Vector Machine, it was shown that the best result of the evaluation metrics are respectively equal to 87.80%, 78.51%, 82.78% and 75.19% in terms of mean AUC, Accuracy, Sensitivity and Specificity which was obtained by Random Forest classifier.
Conclusion: The findings from the empirical analysis reveal that integrating DCT-DOST and Radiomic features into the same learning algorithm improves the discrimination power.
Thermodynamic assessment of evaporation during molten steel testing onboard the International Space Station
Authors: Nawer Jannatun , Stanford Brian , Kolbe Matthias , Schneider Stephan , Gossé Stéphane , Wunderlich Rainer , Mohr Markus , Borzì Aurelio , Neels Antonia , Matson Douglas
Published: February 2024

A series of 54 experiment cycles were performed on an FeCr21Ni19 (at. %) sample in vacuum, He and Ar gas atmospheres using the Electromagnetic Levitation facility onboard the International Space Station (ISS-EML). Evaporation control is a critical facility resource that limits processing time and must be tracked to ensure astronaut safety. Species specific evaporation during this test has been estimated using a mathematical model based on thermodynamic assessment and Langmuir’s equation to track the dynamic mass loss during each thermal cycle. The findings from this study were validated using post-mission SEM-EDX evaluations. The predicted mass loss and elemental distribution from the evaporation model was consistent with experimental observations. Based on facility geometry, deposit layer thicknesses at various locations have also been calculated and results showed excellent agreement with near-real-time predictions using software developed by the German Space Agency (DLR) Microgravity User Support Center (MUSC).
Electrical conductivity of siderite and the effect of the spin transition of iron
Authors: Mashino Izumi , Yoshino Takashi , Mitsui Takaya , Fujiwara Kosuke , Garai Máté , Yamashita Shigeru
Published: February 2024

We have conducted electrical conductivity measurements of FeCO3 siderite under high pressure up to 62 GPa in order to understand the nature and effect of iron spin transition and its influence on the geophysical properties of siderite, which is an end-member of major carbonate minerals. The results from Raman and Mössbauer spectroscopic measurements show that the high- to low-spin transition of iron occurs at around 50 GPa. A sharp decrease of the electrical conductivity was also observed at around 50 GP, which is associated with the iron spin transition. Although the stability of FeCO3 siderite may be limited under high-temperature conditions along with the mantle geotherm, solid solutions in the MgCO3-FeCO3 system, Mg1-xFexCO3, could be stable up to the pressure-temperature condition of the lowermost mantle. The pressure-temperature range of the iron spin transition of Mg1-xFexCO3 would be narrower than those of the major lower mantle minerals of ferropericlase and bridgmanite, and thus the drop of the electrical conductivity induced by the spin transition could be clearer under the lower mantle conditions. Therefore, the existence of Mg1-xFexCO3 may affect the observed heterogeneity of electrical conductivity in the mid-lower mantle.
Real-time siamese neural network based algorithm for user recognition by their eye blinking
Authors: Malinowski Kamil , Saeed Khalid
Published: February 2024

The article proposes a new method for user recognition based on a unique eyelid blinking pattern. Our research aimed to develop a user recognition method using eyelid blinking that is resistant to shoulder surfing and brute force attacks, while also not requiring complex recording devices. Most user authentication methods utilizing eyelid blinking patterns are vulnerable to pattern replication attacks. On the other hand, methods using EEG sometimes require the use of complicated equipment to record the blinking event. In our study, we utilized the publicly available mEBAL database. The temporal eyelid movement patterns extracted from the samples in the database are analyzed by a Siamese neural network. Our achieved results of 98.20% accuracy and 0.11 EER unequivocally demonstrate the superiority of the proposed method over other methods using eyelid blinking for user authentication.
Assessment of heavy metals contamination/pollution of phosphate discharge mud in the Metlaoui region (Gafsa, southern Tunisia).
Authors: Amor BEN GARALI
Published: February 2024

The aim of this study is to evaluate the geochemical and heavy metal contamination degree of phosphate mud in the Metlaoui region (Gafsa, southern Tunisia). These discharges are one of the sources of contamination of the region's hydrographic network to Chott el Gharssa (Tozeur) more to the south.
Assessment of heavy metals pollution is based on the relatively simple principles of measuring concentrations, calculating indexes and comparing them with established standards, which vary according to the nature of the element, its toxicity, and the receiving environment.
Seven mud samples were taken from the beds of the Thelja, Sebseb, Gouifla, Tarfawi, Melah and Charia wadis. Our investigations to assess the degree of heavy metal contamination focused on: zinc (Zn), chromium (Cr), copper (Cu), nickel (Ni) and cadmium (Cd). These metallic elements are measured by atomic absorption spectrometry.
To meet our objectives, we calculated the following contamination/pollution indexes: geo-accumulation index (Igeo), contamination factor (FC), degree of contamination (DC) and sediment pollution index (SPI). The index approach can be used to predict the extent of mud pollution and identify priority polluted sites.
Heavy metals content in phosphate mud in the Metlaoui region shows the following order of abundance: Zn > Cr > Ni > Cd > Cu. Calculation of contamination/pollution indexes reveals at first sigt polymetallic contamination dominated by four elements. Cd (FC ranging from 8.42 to 28.75) , Cr (FC = 9.24), Cu (FC = 7.27) and Ni (FC = 5.86) are of greatest concern. Consequently, the mud analyzed is considered hazardous sediment for most of the study area.
Lineage-specific canonical and non-canonical activity of EZH2 in advanced prostate cancer subtypes
Authors: Venkadakrishnan Varadha Balaji , Presser Adam G. , Singh Richa , Booker Matthew A. , Traphagen Nicole A. , Weng Kenny , Voss Nathaniel C. , Mahadevan Navin R. , Mizuno Kei , Puca Loredana , Idahor Osasenaga , Ku Sheng-Yu , Bakht Martin K. , Borah Ashir A. , Herbert Zachary T. , Tolstorukov Michael Y. , Barbie David A. , Rickman David S. , Brown Myles , Beltran Himisha
Published: February 2024

Enhancer of zeste homolog 2 (EZH2) is a histone methyltransferase and emerging therapeutic target that is overexpressed in most castration resistant prostate cancers and implicated as a driver of disease progression and resistance to hormonal therapies. Here we define the lineage-specific action and differential activity of EZH2 in both prostate adenocarcinoma (PRAD) and neuroendocrine prostate cancer (NEPC) subtypes of advanced prostate cancer to better understand the role of EZH2 in modulating differentiation, lineage plasticity, and to identify mediators of response and resistance to EZH2 inhibitor therapy. Mechanistically, EZH2 modulates bivalent genes that results in upregulation of NEPC-associated transcriptional drivers (e.g., ASCL1), neuronal gene programs, and forward differentiation after targeting EZH2 in NEPC. Subtype-specific downstream effects of EZH2 inhibition on cell cycle genes support the potential rationale for co-targeting cyclin/CDK to overcome resistance to EZH2 inhibition.
Emission of abnormal electrons with energy up to 790TeV detected at downstream of RF cavity of electron storage ring of BEPCII
Authors: Qian Dapeng
Published: February 2024

In a new version of special relativity that incorporates the uncertainty principle, the Einstein-Lorentz mass formula is extended more completely. The new formula shows that there is a weak "high-speed but low-mass" effect in particles movement, which will cause the generation of abnormal ultra-high energy electrons with a certain small probability when the electron beam passes through an accelerating electric field. This previously unknown anomaly was tested on the electron storage ring of BEPCII by the author with a cumulative detection method, and results show that there is indeed the emission of electrons with energy up to 790TeV at downstream of the RF cavity, which is consistent with the theoretical expectation. On this basis, it is suggested that particle physicists do more experimental detection, so as to further fully verify the extended Einstein-Lorentz mass formula.
Factors affecting users’ brand awareness through social media marketing on TikTok
Authors: Nguyen Cuong , Tran Thao , Nguyen Tien
Published: February 2024

TikTok is increasingly influential in promoting brand awareness and boosting purchase intention. From a social media marketing perspective, brand awareness significantly influences consumers’ purchasing decisions. The primary objective of this study is to investigate and measure the factors influencing the brand awareness of TikTok users through social media marketing communications. The paper employs exploratory factor analysis, Cronbach’s Alpha test, and regression analysis to test the hypotheses. 24 observed variables were divided into six groups. Each variable was assessed using a 5-point Likert scale. The sample size includes 240 valid responses from TikTok users collected via convenience sampling. The questionnaire was distributed to TikTok users from Vietnam via the link on Google Forms. The collected data were processed by SPSS 20 software. The results suggest that six independent variables positively affect brand recognition via social media marketing on TikTok, with a 95% confidence interval at Sig. = 0.000 (0.05). Each of the six variables positively impacts initial expectations and is statistically significant at 1%. The results show that trends (Beta = 0.299) are the most decisive factors impacting brand awareness of TikTok users. Besides, electronic word of mouth (Beta = 0.242), influencer (Beta = 0.220), entertainment (Beta = 0.206), interaction (Beta = 0.200), and storytelling (Beta = 0.179) also positively affect the brand awareness of TikTok users. Limitations and further research suggest that marketers should investigate the role of artificial intelligence (AI) in the consumer’s brand awareness-constructing process.
Emotional intelligence in leadership: Its role in fostering employee engagement in Palestine’s ICT sector
Authors: Milhem Marwan , Moufeed Ayyash Mohannad , Ateeq Ali , Alzaghal Qadri , Alzoraiki Mohammed
Published: February 2024

This paper aims to explore the nexus between leadership emotional intelligence and employee engagement within Palestine’s information and communication technology sector. It seeks to fill a research gap by highlighting the impact of leaders’ emotional intelligence on fostering a committed workforce. The study used a quantitative approach and a descriptive research design. Its target population was 5,281 full-time employees in Palestine’s ICT sector, and 328 employees were sampled through probability multistage random sampling. The sample was split into groups based on job types and companies with more than 50 employees. The study’s findings corroborate the hypothesized positive effect, with statistical analysis revealing that emotional intelligence directly influences employee engagement levels within the ICT context (Beta = 0.302; P-value = 0.000). Although highlighted as a crucial element, emotional intelligence is designated as only part of a complex engagement equation that requires further investigation into additional contributing factors, such as different dimensions of emotional processing.
AcknowledgmentThe authors express their gratitude to Gulf University for the significant financial resources that facilitated the publication of this work.
Variation of extreme values of rainfall and temperature in Subarnarekha River basin in India
Authors: Kumar Santosh , Singh Vivekanand
Published: February 2024

In recent years, the Subarnarekha River basin has frequently experienced harsh weather and has also observed extreme floods during monsoons and a shortage of water during lean periods. Hence, in this study, the data of extreme values of rainfall and maximum–minimum temperatures from the years 1990 to 2020 in the Subarnarekha River basin have been analysed. The trend analysis of annual extreme rainfall, maximum–minimum temperatures, extreme diurnal temperature range, and number of rainy days have been determined using the Mann–Kendall test and Sen's slope estimator. Further, the analysis has also been carried out to study the shifting of the onset date of monsoon. The results show that extreme rainfall showed a significant increasing trend at a 95% level of confidence in the upper and middle parts of the basin, whereas it had a decreasing trend in the lower part. Annual extreme maximum temperature indicated a decreasing trend of 0.03 and 0.08 °C/year in the upper and middle parts, respectively, and the decrease in extreme minimum temperature in the lower part was 0.03 °C/year. No significant variations in the number of rainy days have been observed; however, a major shift in the onset date of the monsoon was observed during the selected time-period.
Microplastics’ toxic effects and influencing factors on microorganisms in biological wastewater treatment units
Authors: Zhou Sijie , Wang Lili , Liu Jin , Zhang Chuanguo , Liu Xianbin
Published: February 2024

Prior to entering the water body, microplastics (MPs) are mostly collected at the sewage treatment plant and the biological treatment unit is the sewage treatment facility's central processing unit. This review aims to present a comprehensive analysis of the detrimental impacts of MPs on the biological treatment unit of a sewage treatment plant and it covers how MPs harm the effluent quality of biological treatment processes. The structure of microbial communities is altered by MPs presence and additive release, which reduces functional microbial activity. Extracellular polymers, oxidative stress, and enzyme activity are explored as micro views on the harmful mechanism of MPs on microorganisms, examining the toxicity of additives released by MPs and the harm caused to microorganisms by harmful compounds that have been adsorbed in the aqueous environment. This article offers a theoretical framework for a thorough understanding of the potential problems posed by MPs in sewage treatment plants and suggests countermeasures to mitigate those risks to the aquatic environment.
Predicting Hypoxia Using Machine Learning: Systematic Review
Authors: Pigat Lena , Geisler Benjamin P , Sheikhalishahi Seyedmostafa , Sander Julia , Kaspar Mathias , Schmutz Maximilian , Rohr Sven Olaf , Wild Carl Mathis , Goss Sebastian , Zaghdoudi Sarra , Hinske Ludwig Christian
Published: February 2024

Background

Hypoxia is an important risk factor and indicator for the declining health of inpatients. Predicting future hypoxic events using machine learning is a prospective area of study to facilitate time-critical interventions to counter patient health deterioration.

Objective

This systematic review aims to summarize and compare previous efforts to predict hypoxic events in the hospital setting using machine learning with respect to their methodology, predictive performance, and assessed population.

Methods

A systematic literature search was performed using Web of Science, Ovid with Embase and MEDLINE, and Google Scholar. Studies that investigated hypoxia or hypoxemia of hospitalized patients using machine learning models were considered. Risk of bias was assessed using the Prediction Model Risk of Bias Assessment Tool.

Results

After screening, a total of 12 papers were eligible for analysis, from which 32 models were extracted. The included studies showed a variety of population, methodology, and outcome definition. Comparability was further limited due to unclear or high risk of bias for most studies (10/12, 83%). The overall predictive performance ranged from moderate to high. Based on classification metrics, deep learning models performed similar to or outperformed conventional machine learning models within the same studies. Models using only prior peripheral oxygen saturation as a clinical variable showed better performance than models based on multiple variables, with most of these studies (2/3, 67%) using a long short-term memory algorithm.

Conclusions

Machine learning models provide the potential to accurately predict the occurrence of hypoxic events based on retrospective data. The heterogeneity of the studies and limited generalizability of their results highlight the need for further validation studies to assess their predictive performance.
Análisis jurisprudencial y crítico del uso de acciones de tutela en Colombia en casos de publicaciones injuriosas en redes sociales
Authors: Camacho Castro José Miguel , Arias Murillo Luisa Fernanda
Published: February 2024

Este artículo analiza los criterios jurisprudenciales contemplados por la Corte Constitucional de Colombia para determinar la procedibilidad de la acción de tutela en casos de afectación del derecho a la intimidad, buen nombre y honra por publicaciones dañinas o injuriosas en Internet o redes sociales. La jurisprudencia ha desarrollado criterios dispersos y no siempre explícitos para determinar la procedencia de dicho tipo de acciones, que se sistematizan en este trabajo. Para tal fin, se utilizará la metodología de la línea jurisprudencial. El principal hallazgo del presente estudio es que se ha endurecido el análisis de la llamada relevancia constitucional, que incluye observar el contenido, medio de difusión e impacto de los mensajes publicados en Internet o redes sociales.
Desafíos que enfrentan las unidades de transparencia y acceso a la información pública del estado de Coahuila
Authors: Valenzuela Mendoza Rafael Enrique , Cruz Hermida Gisselle de la , Rodríguez Lozano Jaime Iván
Published: February 2024

Coahuila destaca por una ley aprobada en 2014 que sirvió como insumo y antecedente inmediato de la reforma que dio origen a la Ley General de Transparencia y Acceso a la Información Pública, aprobada en 2015 por el Congreso de la Unión. La armonización del Ley de Transparencia en Coahuila en 2017 significó nuevos desafíos emergentes y que aún no son resueltos en la administración pública. El objetivo del artículo es identificar los desafíos que enfrentan las unidades de transparencia para garantizar al ciudadano el ejercicio del derecho de acceso a la información pública. Para lograrlo se aplicó una encuesta a diversos sujetos obligados en 2018, cuyos resultados sugieren la importancia de fortalecer una cultura organizacional de la transparencia y el uso de la información pública para agregar valor público a la acción gubernamental.
La veracidad en la libertad de información: consideraciones para un nuevo alcance
Authors: Viguera Figueroa Hernán
Published: February 2024

La irrupción y disponibilidad de nuevas tecnologías han permitido que los ciudadanos pasen hacia un rol activo en el tráfico informativo. Frente a los fenómenos como las cámaras ocultas, y más recientemente la desinformación, ha quedado en evidencia que la comprensión jurídica clásica de la diligencia en libertad de información no resulta suficiente para responder a los nuevos paradigmas informativos. Habrá que considerar que la opinión pública ya no sólo se construye a partir de los medios institucionalizados, que quienes informan no son necesariamente profesionales de la información y que para alcanzar la veracidad en la información se requerirán otros y mayores niveles de diligencia y responsabilidad. A partir de estos fenómenos se ha configurado un nuevo canon para la ponderación del grado de injerencia permitido frente a los derechos de la personalidad, así como nuevas fórmulas de regulación que suponen las bases para una nueva compresión jurídica de la libertad de información.
Portales digitales en lenguas originarias; un ejercicio del derecho de acceso a la información de la administración pública del gobierno del Estado de México
Authors: Salvador Aquino Romy
Published: February 2024

El presente trabajo explora la premisa de la democracia pluricultural y su vínculo con el derecho humano de acceso a la información; cuyo caso de estudio es el ejercicio de este derecho, en las lenguas originarias de las comunidades y pueblos indígenas en el Estado de México.
Desinformación, odio y polarización en el entorno digital: segregación de la esfera pública y efectos sobre la democracia
Authors: Martín Guardado Sergio
Published: February 2024

Hace más de medio siglo, el filósofo y politólogo alemán Jürgen Habermas nos adentraba en la “esfera pública” a través de la teoría de la acción comunicativa. Siguiendo sus planteamientos, y desde una perspectiva constitucional, nos adentramos en la nueva forma de comunicación que representan las redes sociales. A partir de un análisis de la estructura de la comunicación (emisor-canal-receptor) y sus transformaciones, llegamos a constatar que los grandes operadores de redes y la tecnología algorítmica que emplean producen injerencias en el ejercicio de la libertad de información y del derecho a informarse, restando la autonomía personal que caracteriza ambos derechos de inmunidad frente al Estado. Este nuevo ecosistema comunicacional conduce a consolidar la polarización, el odio y la exclusión del diferente, afectando al pluralismo como valor esencial en la democracia. Surge en un ámbito en el que no hay más regulación que el contractualismo y la unilateralidad de las plataformas, en donde reinan las conexiones entre la desinformación, el odio y la polarización. Mientras tanto, el Estado no interviene o se muestra impotente ante auténticos poderes privados, que escapan del ordenamiento jurídico a través de la autorregulación y que empiezan a ejercer la censura que a él la Constitución le prohíbe a través del fact-checking. Ante esta situación, se introducen planteamientos para comprender el fenómeno y se proponen ciertas directrices que deberían orientar la política legislativa que eventualmente se dirija a regular el fenómeno descrito. El hilo conductor de todo el trabajo pasa por preservar el pluralismo y la autonomía personal frente a la búsqueda de la “verdad”.
Pembuatan Kue Bolu Menggunakan Tepung Kacang Hijau
Authors: Arsa I Wayan Santya , Sudarmawan I Wayan Eka
Published: February 2024

Tujuan dari penelitian Kualitas kue bolu berbahan dasar tepung kacang hijau adalah untuk mengetahui Kualitas kue bolu berbahan tepung kacang hijau ditinjau dari segi rasa, aroma, tekstur dan warna, kemudian untuk mengetahui daya tahan serta menganalisis seberapa besar biaya yang diperlukan dalam pembuatan kue bolu menggunakan tepung kacang hijau. Dalam penelitian ini penulis menggunakan metodelogi eksperimen, dengan membuat kue bolu menggunakan tepung kacang hijau, kemudian diuji oleh 15 panelis dengan tes organoleptik, observasi dan analisis biaya. Hasil penelitian ini berupa Kualitas kue bolu menggunakan tepung kacang hijau adalah enak dari segi rasa, beraroma wangi, tekstur yang lembut serta memiliki penampilan yang menarik. Dari hasil uji daya tahan kue bolu menggunakan tepung kacang hijau, mampu bertahan 2 hari. Dari hasil analisis biaya dalam pembuatan kue bolu menggunakan tepung kacang hijau membutuhkan biaya Rp. 2.486 per pcs
 
The purpose of the research on the quality of sponge cakes made from mung bean flour is to determine the quality of sponge cakes made from mung bean flour in terms of taste, aromatic, texture and colour, then to find out durability and analyze how much cost is needed in making sponge cakes using mung bean flour. In this study, the authors use an experimental metghode, by making sponge cakes using mung bean flour, then tested by 15 panelist with organoleptic test, observation, and cost analysis. The result of this study in the form of the quality of sponge cakes using mung bean flour are delicious in terms of taste, fragnant aroma, soft texture and have an attractive appearance. From the result of the test of the durability of sponge cake using mung bean flour, it can last 2 days. From the result of the cost analysis in making sponge cakes using mung bean flour, it costs Rp. 13,350 per serving.
Peranan Housekeeping dalam Peningkatan Kualitas Pelayanan Tamu di Hotel
Authors: Kusuma I Ketut Bayu Jaya , Semara I Made Trisna
Published: February 2024

Tujuan penelitian ini untuk mengetahui bagaimana peranan housekeeping dalam peningkatan kualitas pelayanan terhadap tamu di Hotel W Bali Seminyak, apa saja faktor-faktor penyebab peranan hosekeeping kurang optimal dan cara meningkatkan kualitas pelayanan housekeeping di Hotel W Bali Seminyak. Metode penelitian yang digunakan adalah kualitatif deskriptif dengan data dikumpulkan menggunakan teknik wawancara, observasi dan dokumentasi. Analisis data melalui tahapan pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa peranan yang housekeeping dalam meningkatkan kualitas pelayanan di Hotel W Seminyak Bali dikatakan sudah cukup bagus. Terdapat beberapa kekurangan yang terjadi dengan intensitas yang jarang, disebabkan karena ketidaktelitian, tidak adanya pengecekan ulang terhadap hasil kerja housekeeper, kerja yang sulit dilakukan karena banyak tamu yang berlalu lalang, penggunaan alat yang tidak efisien dan tidak terpenuhinya pelayanan bukti fisik berupa penampilan housekeeping. Hal yang dapat dilakukan oleh pihak hotel agar kualitas pelayanan dapat meningkat dengan melakukan pengecekan selepas penyelesaian tugas oleh staf housekeeping, pembersihan yang dilakukan secara berkala dan konsisten, mengganti alat dengan yang lebih efisien dan lebih memperhatikan dan memenuhi seluruh indikator dari kualitas pelayanan.
 
The purpose of this study was to find out how the role of housekeeping in improving the quality of service to guests at Hotel W Bali Seminyak, what are the factors that cause the role of hosekeeping to be less than optimal and how to improve the quality of housekeeping services at Hotel W Bali Seminyak. The research method used is descriptive qualitative with data collected using interview, observation and documentation techniques. Data analysis through the stages of data collection, data reduction, data presentation and drawing conclusions. The results of the study show that the role of housekeeping in improving service quality at Hotel W Seminyak Bali is said to be quite good. There are several deficiencies that occur with infrequent intensity, caused by inaccuracy, no double-checking of the housekeeper’s work, work that is difficult to do because many guests are passing by, inefficient use of tools and non-fulfillment of physical evidence services in the form of housekeeping appearances. Things that can be done by the hotel so that the quality of service can increase by checking after the completion of tasks by housekeeping staff, cleaning is carried out regularly and consistently, replacing tools with more efficient and more attentive and fulfilling all indicators of service quality.
Study on the behavior of impurity removal from lithium-iron-phosphate slag using the ultrasonic-assisted sulphuric acid leaching
Authors: Zhao Y. , Wang Y.-H. , Wu J.-J. , Ma W.-H.
Published: February 2024

The recovery of iron phosphate from the leaching slag of used lithium iron phosphate cathode materials is a crucial step to achieve closed-loop recovery of lithium iron phosphate, which has not yet been effectively accomplished. In the study, ultrasonic-assisted sulfuric acid leaching was used to remove impurities in the iron phosphate, to meet the stringent impurity content requirements for battery-grade iron phosphate regarding impurity content. Optimization of leaching conditions involved a sulfuric acid concentration of 0.2 mol?L-1, acid-leaching time of 30 min, power of 50 W, and reaction temperature of 80?. Under these conditions, the removal efficiencies of Cr, Cu, Ni, and Zn in iron phosphate were 26.09%, 83.0%, 75.9%, and 96.3%, respectively. Simultaneously, the content of impurity elements Cr and Zn concurred with the standard for battery-grade iron phosphate (HG/T 4701-2021), with both 50 ppm and 10 ppm contents. The leaching results indicated the effectiveness of ultrasound in enhancing the removal of impurity elements in iron phosphate within a sulfuric acid solution. Further analyses, including XRD, particle size, TEM, and XPS indicated that the surface of the iron phosphate particles cavitated after ultrasonic acid leaching, resulting in the formation of numerous pores. Additionally, particle collisions led to a reduction in particle size, with no generation of by-products during the process. This innovative approach not only contributed to the removal of impurity elements but also provided insights into the reuse of leaching slag (iron phosphate) and offered guidance for the recovery of metals from waste lithium iron phosphate cathode materials.
Epidemiology and Prognostic Implications of Coronary Artery Calcium in Asymptomatic Individuals With Prediabetes: A Multicohort Study
Authors: Al Rifai Mahmoud , Al-Mallah Mouaz H. , Blaha Michael J. , Patel Jaideep , McEvoy John W. , Nasir Khurram , Shahid Izza , Patel Kershaw V. , Sharma Garima , Marrugat Jaume , Tizon-Marcos Helena , Erbel Raimund , Stang Andreas , Jöckel Karl-Heinz , Lehmann Nils , Schramm Sara , Schmidt Börge , Blumenthal Roger S. , Virani Salim S. , Nambi Vijay , Cainzos-Achirica Miguel
Published: February 2024

OBJECTIVE

To describe the epidemiology and prognostic value of coronary artery calcium (CAC) in individuals with prediabetes.

RESEARCH DESIGN AND METHODS

We pooled participants free of clinical atherosclerotic cardiovascular disease (ASCVD) from four prospective cohorts: the Multi-Ethnic Study of Atherosclerosis, Heinz Nixdorf Recall Study, Framingham Heart Study, and Jackson Heart Study. Two definitions were used for prediabetes: inclusive (fasting plasma glucose [FPG] ≥100 to <126 mg/dL and hemoglobin A1c [HbA1c] ≥5.7% to <6.5%, if available, and no glucose-lowering medications) and restrictive (FPG ≥110 to <126 mg/dL and HbA1c ≥5.7% to <6.5%, if available, among participants not taking glucose-lowering medications).

RESULTS

The study included 13,376 participants (mean age 58 years; 54% women; 57% White; 27% Black). The proportions with CAC ≥100 were 17%, 22%, and 37% in those with euglycemia, prediabetes, and diabetes, respectively. Over a median (25th–75th percentile) follow-up time of 14.6 (interquartile range 7.8–16.4) years, individuals with prediabetes and CAC ≥100 had a higher unadjusted 10-year incidence of ASCVD (13.4%) than the overall group of those with diabetes (10.6%). In adjusted analyses, using the inclusive definition of prediabetes, compared with euglycemia, the hazard ratios (HRs) for ASCVD were 0.79 (95% CI 0.62, 1.01) for prediabetes and CAC 0, 0.70 (0.54, 0.89) for prediabetes and CAC 1–99, 1.54 (1.27, 1.88) for prediabetes and CAC ≥100, and 1.64 (1.39, 1.93) for diabetes. Using the restrictive definition, the HR for ASCVD was 1.63 (1.29, 2.06) for prediabetes and CAC ≥100.

CONCLUSIONS

CAC ≥100 is frequent among individuals with prediabetes and identifies a high ASCVD risk subgroup in which the adjusted ASCVD risk is similar to that in individuals with diabetes.
Patient experiences of physical activity and inactivity in the stroke unit: an interview study
Authors: Reinholdsson Malin , Herranen Gisela , Sunnerhagen Katharina S. , Palstam Annie
Published: February 2024

Objective: Stroke unit care is highly recommended after stroke, but patients in these units are often physically inactive. The aim of this study was to explore patient experiences of physical activity and inactivity in the stroke unit.
Design: Qualitative interview study.
Subjects: Sixteen participants with stroke; a heterogeneous sample with differences in sex, age, and stroke severity from 8 Swedish stroke units.
Methods: In-depth interviews 1–2 weeks after discharge analysed using thematic analysis.
Results: The analysis resulted in three themes: 1: Dealing with the challenges of a changed body while striving to become independent; 2: The stroke unit is crucial for physical activity; and 3: Physical activity is important for interaction with others, autonomy, and feeling seen. Participants described how they coped with a new situation when finding new ways to move and function. In addition, they wanted to be involved in their own stroke rehabilitation.
Conclusion: The participants expressed the following experiences of being in the stroke unit: movement is more important than physical activity and involves being seen and respected; physical activity and exercise are necessary to achieve independence; process involvement is of importance to regain abilities; physical activity offers the possibility of choosing between community and being alone and influences the ability to connect with others and the outside world.
NUEVO REGIONALISMO E INTERNACIONALIZACIÓN DE LA EDUCACIÓN SUPERIOR EN AMÉRICA LATINA Y EL MERCOSUR
Authors: Lagoria Silvana Lorena , Brunori María Clara
Published: February 2024

Desde la teoría del ciclo de las políticas de Stephen Ball, este artículo analiza el contexto latinoamericano como terreno fértil para el nacimiento y desarrollo de las políticas de internacionalización de la Educación Superior en la región MERCOSUR en clave del nuevo regionalismo. Se retoma la perspectiva del autor respecto a la importancia de identificar en un contexto de influencia las influencias discursivas, los efectos de la globalización (en lo político, económico y cultural) y la ideología neoliberal en las reformas educativas regionales. En línea con esa perspectiva, la pregunta de investigación de este artículo es la siguiente: ¿Qué condiciones del contexto de influencia nos permiten comprender el surgimiento y desarrollo de los procesos de internacionalización en la región? En orden a dar respuesta a esa pregunta, nuestro objetivo principal es identificar y describir los aspectos contextuales que entraron en puja e influyeron en el desarrollo del proceso de Internacionalización de la Educación Superior en el MERCOSUR. Cabe mencionar que este artículo surge de una investigación de mayor alcance de corte cualitativa con fuentes documentales y entrevistas que nos permite, en primer lugar, reconstruir el escenario latinoamericano de internacionalización de la educación superior y, en segundo lugar, avanzar en el análisis de un caso concreto de internacionalización que será abordado en futuras publicaciones. En esta primera aproximación presentamos una reconstrucción del surgimiento de las políticas de internacionalización de la educación superior en el contexto latinoamericano, nuestra intención es continuar publicando avances sobre el análisis de los efectos de las políticas regionales a nivel local e institucional e identificar procesos de cambio en un estudio de caso. Al final de este artículo, y en base al desarrollo bibliográfico previo, destacamos la estrategia de internacionalización en educación superior como un elemento clave para fortalecer el desarrollo de una educación superior como bien público y derecho humano.
Software Maintainability and Refactorings Prediction Based on Technical Debt Issues
Authors:   Department of Computer Science, Faculty of Mathematics and Computer Science, Babes-Bolyai University, Cluj-Napoca, Romania. Email: liviu.berciu@ubbcluj.ro., Berciu Liviu-Marian , Moldovan Vasilica ,   Department of Computer Science, Faculty of Mathematics and Computer Science, Babes-Bolyai University, Cluj-Napoca, Romania. Email: vasilica.moldovan@stud.ubbcluj.ro.
Published: February 2024

Software maintainability is a crucial factor impacting cost, time and resource allocation for software development. Code refactorings greatly enhance code quality, readability, understandability and extensibility. Hence, accurate prediction methods for both maintainability and refactorings are vital for long-term project sustainability and success, offering substantial benefits to the software community as a whole. This article focuses on prediction of software maintainability and the number of needed code refactorings using technical debt data. Two approaches were explored, one compressing technical debt issues per software component and employing machine learning algorithms such as ExtraTrees, Random Forest, Decision Trees, which all obtained a high accuracy and performance. The second approach retained multiple debt issue entries and utilized a Recurrent Neural Network, although less effectively. In addition to the prediction of the requisite number of code refactorings and software maintainability for individual software components, a comprehensive analysis of technical debt issues was conducted before and after the refactoring process. The outcomes of this study contribute to the advancement of a dependable prediction system for maintainability and refactorings, presenting potential advantages to the software community in effectively managing maintenance resources. Of all the employed models, the ExtraTrees model yielded the most optimal predictive outcomes. To the best of our knowledge no other approaches of using ML techniques for this problem have been reported in the literarture. Keywords and phrases: Software Quality, Sonarqube, Refactoring, Code Smells.
On Composing Asynchronous Operations
Authors:   Department of Computer Science, Faculty of Mathematics and Computer Science, Babes-Bolyai University, Cluj-Napoca, Romania. Email: radu.lupsa@ubbcluj.ro., Lupșa Radu , Lupșa Dana ,   Department of Computer Science, Faculty of Mathematics and Computer Science, Babes-Bolyai University, Cluj-Napoca, Romania. Email: dana.lupsa@ubbcluj.ro.
Published: February 2024

Asynchronous operations are very useful for actions that wait for an external event or work for a long time, to avoid blocking the thread that launches them. Unfortunately, whether they report their termination via callbacks or via completing a future, composing several asynchronous calls is difficult and error prone. The continuations mechanism (provided, for example, in C# Task Parallel Library via ContinueWith()) offers limited support for scheduling a sequence of operations. In this paper we try to improve this mechanism with better support for sequencing operations and exceptions, and with support for conditionals and loops, while covering the specifics of a C++ implementation. The most recent version of our source code is at [14].
Keywords and phrases: asynchronous programming.
MYTHOLOGICAL PERSPECTIVE OF THE LINGUISTIC WORLDVIEW (THE MOON AND THE SUN IN PHRASEOLOGY)
Authors: Iliadi Alexander , Derik Ilona
Published: February 2024

In the focus of the article there is the problem of hidden mythological seman- tics of lexical (more broadly — phraseological) units in the Slavic and Germanic (English) languages. Often the lack of proper attention to this problem leads to inaccurate, inappropriate, superficial translation or to incorrect assessment of certain fragments of folklore texts of various genres in their ethnolinguistic study. Being «erased» on the surface of linguistic consciousness, which in the course of evolution has developed new stereotypes, the structures of mythological think- ing are often preserved at the level of lexical semantics and in the semantics of phraseological units.
The mythological plane of the semantics of linguistic units is an important level of such a complex object of linguistics as the linguistic picture of the world, since it largely determines the specificity and originality of linguistic thinking, while remaining implicit, hidden behind the everyday, habitual meaning.
On the example of microtexts (established figurative phrases) with two oppo- site ancient concepts «the moon» and «the sun», the commonality and difference in the mythological semantics of the units of the Slavic and English languages are shown. The relevant differential features of the Slavic and Germanic worldviews are emphasized.
SEMANTIC ANALYSIS OF THE SYNONYMS OF THE CONCEPT «PANDEMIC»
Authors: Boshkov Andrii
Published: February 2024

The article is devoted to the analysis of synonyms of the concept «pandemic». A special attention is focused on defining of synonyms for the key lexeme of the concept «pandemic» on the basis of lexicographic sources. The study of any con- cept is carried out in accordance with its structural composition, which includes the description of conceptual, image and value components. The analysis of the conceptual component of the concept is conducted through the study of its direct nomination, definition, as well as by means of research of the synonyms of the key lexeme, the analysis of which contributes to the reproduction of additional conceptual features that are not represented in the key lexeme definitions.
The main lexical units with synonymous meanings for the name of the con- cept «pandemic» were identified. The definitional analysis of the synonymous lexemes is based on the lexicographical data obtained from generic and medi- cal dictionaries. The study of medical terminology presented in the definitions of medical dictionaries enabled identification of the dominant semes for the key lexeme, which reveal additional conceptual features.
Based on the analysis of the definitions of lexemes of the synonymous rows of the concept «pandemic», the following additional conceptual features of the concept «pandemic» have been selected: presence of a disease caused by a virus, bacteria and other microorganisms and characterized by specific signs and symp- toms; the severity of the disease; localization of the disease (body, mind); a sud- den occurrence; pathogenic nature; high contagiousness; duration; seasonality; ways of transmission (airborne, contact, through blood, sexual, prenatal, wound, food); methods of diagnosis of the disease (collection of anamnesis for the study of the disease, its laboratory and radiographic findings); reduction, impairment of human vital functions.
LINGUAL AND STYLISTICAL SPECIFICS OF THE ENGLISH MOBILE NOVEL
Authors: Yumrukuz Anastasia , Pershyna Liubov
Published: February 2024

The article examines the linguistic and stylistic features of a new genre of literature — the mobile novel. It is noted that the development of communica- tion technologies in the period of the end of the 20th and the beginning of the 21st centuries became the impetus for the emergence of hybrid forms that arose during the transition of classical genres to a new for them interactive environ- ment and the development of new means of artistic expression based on modern telecommunication technologies, which include mobile novel. It was determined that the purely linguistic features of the texts of this genre include the use of abbre- viations; colloquial, simplified and lapidary style; frequent omission of dramatic dialogues, which allows the reader to independently guess and interpret what they have read; the sharp unfolding of plots often keeps the reader in suspense and stimulates anticipation of the next part. The graphic stylistic devices of the mo- bile novel include the use of capitalization, phonetic repetitions (alliteration or assonance), the use of emoji, unconventional punctuation (the use of hyphens, infinity signs, exclamation marks in the middle of the sentence, etc.). During the experimental study, the linguistic stylistic features of the mobile novel “Second- Hand Memories” by the English-speaking author of Japanese origin Takatsu were analyzed. In the process of research, the compositional structure, plot line, roles of the main characters, as well as linguistic stylistic phenomena of the three levels of language — phonographical, lexical and grammatical, and syntactic — were analyzed.