bluuebunny/crossref_metadata_2025 huggingface dataset:
Magnetohydrodynamic and Thermal Performance of Electrically Conducting Fluid along the Symmetrical and Vertical Magnetic Plate with Thermal Slip and Velocity Slip Effects
Authors: Alharbi Khalid Abdulkhaliq M. , Ullah Zia , Jabeen Nawishta , Ashraf Muhammad
Published: May 2023

Numerical and physical simulations of the magnetohydrodynamic mixed convective flow of electrically conducting fluid along avertical magnetized and symmetrically heated plate with slip velocity and thermal slip effects have been performed. The novelty of the present work is to evaluate heat transfer and magnetic flux along the symmetrically magnetized plate with thermal and velocity slip effects. For a smooth algorithm and integration, the linked partial differential equations of the existing fluid flow system are converted into coupled nonlinear ordinary differential equations with specified streaming features and similarity components. By employing the Keller Box strategy, the modified ordinary differential equations (ODEs) are again translated in a suitable format for numerical results. The MATLAB software is used to compute the numerical results, which are then displayed in graphical and tabular form. The influence of several governing parameters on velocity, temperature distribution and magnetic fields in addition to the friction quantity, magnetic flux and heat transfer quantity has been explored. Computational evaluation is performed along the symmetrically heated plate to evaluate the velocity, magnetic field, and temperature together with their gradients. The selection of the magnetic force element, the buoyancy factor 0<ξ<∞ , and the Prandtl parameter range 0.1≤Pr≤7.0 were used to set the impacts of magnetic energy and diffusion, respectively. In the domains of magnetic resonance imaging (MRI), artificial heart wolves, interior heart cavities, and nanoburning systems, the present thermodynamic and magnetohydrodynamic issuesare significant.
Performance Analysis of Coherent Source SAC OCDMA in Free Space Optical Communication Systems
Authors: Alhassan Ahmed M. , Issam Eithar , Aljunid Syed Alwee , Beson Mohd Rashidi Che , Ammar Syed Mohammad , Ali Norshamsuri , Endut Rosdisham
Published: May 2023

In this paper, we investigate the performance of spectral amplitude coding optical code division multiple access (SAC OCDMA) systems under the effect of beat noise and turbulence. Three different multi-laser source configurations are considered in this analysis: shared multi-laser, separate multi-laser, and carefully controlled center frequency separate multi-laser. We demonstrate through Monte Carlo simulation that the gamma–gamma probability density function (pdf) cannot adequately approximate the measured intensity of overlapping lasers and that an empirical pdf is required. Results also show it is possible to achieve error-free transmission at a symmetrical data rate of 10 Gbps for all active users when only beat noise is taken into account by precisely controlling the center frequencies. However, only 30% of the active users can be supported when both beat noise and turbulence are considered.
Classifying and Optimizing Spiral Seed Self-Servo Writer Parameters in Manufacturing Process Using Artificial Intelligence Techniques
Authors: Sapapporn Chaweng , Seangsri Soontaree , Srisertpol Jiraphon
Published: May 2023

This paper presents a technique for evaluating the performance of high-precision machines and classifying machine conditions in terms of test capability, such as hard disk drive (HDD) signal writing machines. In general, position errors generated during the signal writing process must be minimized to ensure high-quality writing. Position errors refer to deviations in the signal writing process and can be caused by several factors, such as deviations in the performance of the positioner that result in a position error signal exceeding its control limit. The proportion-al-integral-derivative (PID) controller must be optimized to minimize position errors. In model-based controller tuning, an accurate mathematical model is essential. The first step utilizes system identification methods, including adaptive weight least squares and peak detection, to create a partition resonance frequency model. This mathematical model is used to determine the open-loop stability, which involves achieving gain and phase margin at a specific crossover frequency, and the closed-loop dynamic response, which involves minimizing the discrete Fourier transform (DFT) of the position error signal. The DFT of the position error signal in each harmonic can be represented as a resonance peak in the transfer function model. The DFT and other combinations of operating parameters are analyzed and used as machine learning features. The ANN classifier was also effective in categorizing the performance of signal writing machines into four classes: 0 (healthy machine), 1 (sensor fault), 2 (loose pushpin), and 3 (tunable machine). The results showed that the classification performance was sufficient to separate class 1 and 2 for the maintenance process and class 3 for further optimization achieved using the mathematical model.
Dynamic Characteristics and Evolution Analysis of China’s Rural Population Migration Networks from 2000 to 2020 Based on the Perspective of Regional Differences
Authors: Zhou Yihu , Fang Tingting
Published: May 2023

The large-scale cross-regional migration of rural migrants is a significant feature of the current social system in China, affecting the sustainability of social and economic development. Using China National Census data and socio-economic panel data, we applied the complex network analysis method to construct a rural population migration network and analyze its characteristics, evolution, and mechanisms of network formation and changes. The research findings are as follows: (1) From 2000 to 2020, the rural population migration network developed rapidly, the network scope expanded continuously, regional participation gradually grew, and the inter-regional rural population migration relationship became increasingly complex. The overall network gradually evolved from an early segmented and loose structure to a monolithic and solid structure. (2) The in-degree centralization of the network remained higher than the out-degree centralization. The inbound migration pattern of the rural population was more compact than the outbound migration pattern, and the internal network displayed aggregated inbound population migration and dispersed outbound population migration flow characteristics. (3) The network had a distinctive “core–edge” character, with the core areas and the main migration flows in the network demonstrating high similarity across different periods. The overall network gradually developed around the core areas where the rural population moved in and out. (4) The influence mechanism between the later migration network and the geographical differences was more complex than in the early period. Differences in the regional development levels and geographical factors continued to influence the mobility choices of the rural population, whereas differences in income levels, cost of living, employment opportunities, and education funding only affected the rural migration network during specific periods. Based on these findings, reasonable migration policies should be formulated to ensure sustainable urban and rural development.
Self-Organized Criticality and Cognitive Control Reasoned by Effort Minimization
Authors: Lubashevskiy Vasily , Lubashevsky Ihor
Published: May 2023

We put forward a novel model for self-organized criticality in the dynamics of systems controlled by human actions. The model is based on two premises. First, without human control, the system in issue undergoes supercritical instability. Second, the subject’s actions are aimed at preventing the occurrence of critical fluctuations when the risk of control failure becomes essential rather than keeping the system in the stability region. The latter premise is reasoned as follows: (i) keeping the system rather far from the instability boundary is not justified from the standpoint of effort minimization, and (ii) keeping it in the immediate proximity to the instability onset also requires considerable effort because of the bounded capacity of human cognition. The concept of dynamical traps is used in the mathematical description of this type of subject’s behavior. Numerical simulation demonstrates that the proposed model does predict the emergence of fluctuations with the power-law distribution. In conclusion, we discuss that the self-organized criticality of social systems is possible due to the basic features of the human mind.
Poleward-Moving Black Aurora Associated with Impulse-Excited Field-Line Resonances in the Dawnside Sector: THEMIS and Ground Observations
Authors: Zhao Huayu , Liu Ying , Zong Qiugang , Yang Huigen , Hu Zejun , Zhou Xuzhi , Sun Jicheng
Published: May 2023

The black aurora is a distinct phenomenon characterized by spatially well-defined regions where the diffuse auroral luminosity decreases notably. Typically, black auroras present as arcs moving at lower velocities, patches with higher moving speeds, and arc segments. However, the mechanism behind black auroras remains unclear. In this paper, we present a novel observation of a poleward-moving black auroral arc associated with impulse-excited field-line resonances in the dawnside sector from the multi-spacecraft THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission, equivalent ionospheric currents, and a conjugated all-sky imager. The field-line resonance velocities exhibit periodic vorticity, which correspond to periodic poleward-moving bands of enhanced FACs. Based on the relatively large reduction in luminosity, we conclude that the poleward-moving black auroral arc was most likely caused by downward FACs associated with field-line resonances.
Effects of Quantum Gravity on Thermodynamic Quantities of Gases around a Novel Neutral Four-Dimensional Gauss–Bonnet Black Hole
Authors: Li Guqiang
Published: May 2023

Taking the generalized uncertainty principle (GUP) into account, we apply the corrected state density to investigate the entropy density, energy density, pressure and equation of state for the perfect relativistic gases of massless particles with an arbitrary spin of s ≤ 2 surrounding a new four-dimensional neutral Gauss–Bonnet black hole. The modifications of these thermodynamic quantities by the gravity correction factor and particle spin are shown, and the expressions have completely different forms from those in flat space-times. For example, the energy density is not proportional to the fourth power of the temperature. In other words, the energy density differs from that of blackbody radiation. The quantum gravity effects reduce these quantities and are proportional to the gravity correction factor. The result that the equation of state is not zero is compatible with the non-vanishing trace of the stress tensor.
The S2 Subunit of Infectious Bronchitis Virus Affects Abl2-Mediated Syncytium Formation
Authors: Fan Shunyi , Shen Yuxi , Li Shuyun , Xiang Xuelian , Li Nianling , Li Yongxin , Xu Jing , Cui Min , Han Xinfeng , Xia Jing , Huang Yong
Published: May 2023

The S2 subunit serves a crucial role in infectious bronchitis virus (IBV) infection, particularly in facilitating membrane fusion. Using reverse genetic techniques, mutant strains of the S2 locus exhibited substantially different syncytium-forming abilities in chick embryonic kidney cells. To determine the precise formation mechanism of syncytium, we demonstrated the co-ordinated role of Abl2 and its mediated cytoskeletal regulatory pathway within the S2 subunit. Using a combination of fluorescence quantification, RNA silencing, and protein profiling techniques, the functional role of S2 subunits in IBV-infected cells was exhaustively determined. Our findings imply that Abl2 is not the primary cytoskeletal regulator, the viral S2 component is involved in indirect regulation, and the three different viral strains activate various cytoskeletal regulatory pathways through Abl2. CRK, CRKL, ABI1, NCKAP1, and ENAH also play a role in cytoskeleton regulation. Our research provides a point of reference for the development of an intracellular regulatory network for the S2 subunit and a foundation for the rational design of antiviral drug targets against Abl2.
Water Quality and Flow Management Scenarios in the Qu’Appelle River–Reservoir System Using Loosely Coupled WASP and CE-QUAL-W2 Models
Authors: Terry Julie , Lindenschmidt Karl-Erich
Published: May 2023

The water bodies of the Saskatchewan Prairies suffer multiple stressors, and demand for water is expected to increase. Water quality models can help evaluate water management strategies and risks such as climate change. This study assesses the impact of interbasin water transfers on the water quality of a strategic, eutrophic prairie reservoir that receives poor-quality watershed run-off. A one-dimensional WASP model was used to estimate nutrient transformations in the transfers along a 97 km river channel. The WASP model was then loosely coupled to a two-dimensional CE-QUAL-W2 model of the downstream receiving reservoir. Output from the WASP model was manually transformed into boundary conditions for the CE-QUAL-W2 reservoir model. This method improves on an earlier attempt to estimate nutrient transformations in the transfers using linear regression. Results from the loosely coupled models suggest Buffalo Pound Lake would respond well to the interbasin transfers. The number of threshold exceedances decreased for all modeled water quality variables. Nutrient concentrations were most influenced in the open water season following spring freshet. Any additional reduction of threshold exceedances during winter was minimal in comparison. These results are interesting from a management perspective as increased transfers under winter operations risk ice damage to the river channel.
Taxonomic Structure of Planktonic Protist Communities in Saline and Hypersaline Continental Waters Revealed by Metabarcoding
Authors: Gerasimova Elena A. , Balkin Alexander S. , Filonchikova Ekaterina S. , Mindolina Yulia V. , Zagumyonnyi Dmitry G. , Tikhonenkov Denis V.
Published: May 2023

Saline and hypersaline waters are one of the most peculiar ecosystems of our planet, characterized by extreme life conditions. Despite their worldwide distribution, the diversity and abundance of protist communities in these ecosystems remain poorly studied. Here, we analyze planktonic communities of protists sampled across 38 saline and hypersaline water environments (2–390‰) from arid climatic zones of the South Urals and Crimea in light of environmental data using high-throughput 18S rDNA amplicon sequencing. A total of 9 eukaryotic supergroups, 34 phyla, 104 classes, 184 orders, 315 families and 548 genera have been identified. We revealed significant differences in the taxonomic structure of protist communities depending on salinity, geographic location and pH. The protist communities demonstrated linear regression of richness and diversity and growth of the percentage of unclassified Eukaryota (up to 43%) with the increase in salinity. Centrohelids demonstrated the ability to inhabit a broad range of salinities, up to 320‰, which is four times higher than previously reported. Centrohelid species Pinjata ruminata and Yogsothoth sp. are assumed to be specifically adapted to salinity of 3–210‰. The obtained results provide insight into the taxonomy and diversity of protists in saline and hypersaline environments and highlight the great potential for the discovery of new taxa due to the large number of unclassified 18S rDNA sequences.
Advanced X-by-Wire Technologies in Design, Control and Measurement for Vehicular Electrified Chassis
Authors: Li Yong
Published: May 2023

Advanced X-by-wire technologies for vehicular electrified chassis play an essential role in developing new energy-intelligent vehicles, which is the inevitable choice for intelligent vehicles in the future [...]
Ansiedad sobre la muerte en personas de tercera edad institucionalizados y no institucionalizados
Authors: Ceballos Ospino Guillermo Augusto , Anaya Manjarres Nicole Dayana , Rodríguez de Ávila Ubaldo Enrique
Published: May 2023

Durante los últimos 40 años, la sociedad occidental ha venido experimentando un avance más rápido de las personas mayores de 65 años, por ello; el objetivo del estudio fue determinar la diferencia existente en la ansiedad ante la muerte en adultos mayores institucionalizados y no institucionalizados. Con una metodología empírico analítico de corte transversal cuya muestra fue de 47 sujetos institucionalizados y 53 no institucionalizados. Para analizar las diferencias existentes en la ansiedad ante la muerte se halló que las puntuaciones en la Escala fueron más elevadas en los adultos mayores “institucionalizados” que en los residentes de la comunidad general (M = 8,85; DE = 5,20 frente a M = 6,44; DE = 4,88; t = 2,06; grados de libertad = 76; p = 0,04). De esta manera, se concluyó que la diferencia existente en la Escala ansiedad ante la muerte en adultos mayores institucionalizados y no institucionalizados fueron similares.
Impacto de las vacunas contra la COVID-19 en secuelas post-infecciosas de consumidores de sustancias psicoactivas
Authors: Da Silva Rodrigues Charles Ysaacc , Carvalho de Figueiredo Paula Alexandra , Vázquez-Justo Enrique
Published: May 2023

El impacto de las secuelas post-infecciosas del COVID-19 son un problema real para el control y tratamiento de las adicciones, debido a que las afectaciones previas por consumo de sustancias psicoactivas empeoran significativamente, y algunos de estos déficits serán permanentes en el individuo. Esta investigación tuvo por objetivo contrastar el efecto de las vacunas con el aparecimiento de secuelas post-infecciosas del COVID-19 comparando 240 personas, que fueron divididas en tres grupos. Se evaluaron los procesos cognitivos y de regulación emocional, a través de la aplicación del MME y de la EDAE, respectivamente. Los resultados arrojaron datos no significativos en las alteraciones de los participantes con adicción, antecedentes de COVID-19 y vacunación previa a la infección, lo que nos lleva a concluir que las vacunas contra la COVID-19 presentan una importante eficiencia en la protección de secuelas post-infecciosas del COVID-19, al menos, en personas con diagnóstico de adicción.
Tourism and Marginalization in the Alps. The Case of Media-Alta Valtellina Region
Authors: Mazza Francesca
Published: May 2023

Tourism and marginalization are broadly considered different trajectories in the Alpine region's development. On the one hand, tourism is one of the main economic drivers in the Alps. However, many areas still depend on a mass tourism economy that produces relevant ecological, sociocultural and economic impacts. At the same time, marginalization identifies those contexts excluded by mass tourism development affected by shrinkage, abandonment and economic decline. Within this framework, the paper points out that these processes often overlap and coexist, producing complex and layered spatial geographies. The Media-Alta Valtellina Region, located in the Lombard Italian Alps, is provided as a case study to investigate the relationship between mass tourism and marginalization through two sets of indicators. Tourism indicators measure the impact of mass tourism development, while territorial capital indicators assess marginalization processes and the potential expressed by environmental, productive, demographic, infrastructural, settlement, and cultural resources. As a result, besides popular mass tourism poles and non-touristic marginalized areas, several mature tourism destinations emerge where marginalization effects and mass tourism issues overlap. Furthermore, territorial capital broadly appears as the intrinsic potential that must be activated and valorized to build new development trajectories. In conclusion, according to the different potentials expressed by territorial capital, the paper provides preliminary suggestions and guidelines for achieving the territorial rebalance between the multiple processes investigated.
Social media in hotel crisis communication: a case study
Authors: Silva Cândida , Silva Susana , Rodrigues Bruna
Published: May 2023

The evolution of social media has transformed the way people communicate, share experiences and search for information before and after a trip. These platforms can bring countless benefits to businesses but implementing them effectively brings countless challenges.

In the hotel industry, the use of social media as a digital marketing strategy has become fundamental to promote brands and services, as well as to create a closer relationship with the customer. It then becomes essential to understand how hotels can use these platforms effectively. Moreover, defining communication strategies, especially in periods of global crisis, with customers and public that include social networks are fundamental and a great challenge.

In this sense, in this paper a case study of a hotel in a period including the global pandemic crisis of COVID-19 was conducted where good practices for social media management in hospitality are proposed, supported by the literature review and the practical learning provided in the fieldwork. These good practices also take into consideration the application of successful social media strategies in a hotel during times of crisis.
Customer Loyalty in Spa Tourism: A Case Study
Authors: Kantorová Kateřina , Mlázovský Martin , Svoboda Ondřej
Published: May 2023

In today's business world, acquiring and retaining customers in the tourism industry is becoming increasingly challenging. High competition, constantly changing markets, and growing customer demands require constant adaptation to new trends and marketing innovations. It is crucial to cultivate customer loyalty, as it leads to repeat business and positive word-of-mouth promotion. Achieving this goal is an increasingly difficult task that requires innovative approaches to service marketing. Tourism includes very specific sub-sectors that are significantly different from the mainstream of the industry and serve not only well-being but also other needs. An example of a sub-sector that combines well-being and health is spa tourism. Existing studies suggest that factors influencing the loyalty of health spa visitors may vary depending on the region and cultural factors and may also change over time. Further research is therefore needed to precisely identify which factors are currently most important for promoting the loyalty of spa customers. This article presents a case study of increasing customer loyalty, with a special focus on the Czech Republic. The study identifies the current needs, preferences, and requirements of customers in the selected tourism industry. The article aims to complement a model of visitor loyalty for the needs of spa tourism and introduce marketing tools that currently influence customer loyalty in spa tourism. The complementation of the model is based on the generally accepted model of customer satisfaction in tourism. The proposed suggestions can inspire tourism businesses to fulfil the needs of health, active living, and well-being by effectively acquiring and retaining customers in a highly competitive environment. The study provides theoretical and managerial recommendations for increasing customer loyalty. The study is based on a questionnaire survey conducted in 2022 among spa visitors throughout the Czech Republic. The motivation was to identify key factors that support customer loyalty. The results show that specific treatment effects and procedures, information and personal experience, a pleasant environment and ambience of the spa contribute more to loyalty than satisfaction with accommodation or the offer of complementary services. The paper also provides a set of practical recommendations for setting up marketing programs and improving marketing communication for owners and managers of spa tourism.
Organizational Climate and The Achievement of Objectives in a Governmental Tourism Management Institution
Authors: Cordova-Buiza Franklin , Olavarria-Benavides Heber Luis , Jimenez-Tavara Veronica Elizabeth de Jesus , Ventura-Suclupe Percy Ronald
Published: May 2023

Communication is an essential part to achieve the goals of any organization. Thus, nowadays, many organizations are committed to have an appropriate communication flow, being of total obligation to provide their collaborators with the necessary tools for an assertive communication; therefore, if the collaborators perceive that the institution offers them value, they will show great commitment to the achievement of the goals, based on internal communication. The government institution under study, which manages tourism in a region of Peru, presents several problems related to the organizational climate and its factors, such as lack of cooperation, poor relations between employees, conflicts and poor communication, which causes low productivity by the institution. The general objective is to determine the relationship between the organizational climate of the Regional Management of Foreign Trade and Tourism of Lambayeque and the impact on the achievement of the institution's objectives. Its variables seek to know if there is a relationship between organizational climate and the impact on the achievement of goals. Likewise, in relation to the methodology, it was a quantitative study, the method used was inductive and deductive, with a non-experimental design of correlational cross-sectional cut.  Its population consisted of 35 workers of the Regional Management of Foreign Trade and Tourism of Lambayeque, and its sample was a census, since it worked with the entire population and had a non-probabilistic sampling, of these correspond to 19 males and 16 females. Likewise, in terms of techniques and instruments, a survey was used, and a questionnaire was used as an instrument for both variables. As the main result, when applying Spearman's Rho, a value of 0.872 was obtained, which indicates that there is a strong and positive relationship between organizational climate and goal fulfillment. In view of the above, it has been concluded that there is a significant relationship between organizational climate and goal achievement.
What do hotel managers think of employee rewards? An exploration of five-star hotels in Cape Town
Authors: Cwibi Mzukisi
Published: May 2023

Reward systems are important tools that management can use to motivate employees; the main objective of organizations in awarding rewards is to attract and retain efficient, productive, and motivated employees. However, there is no evidence available regarding managers' perceptions of employee rewards in five-star hotels in Cape Town.  Therefore, this study aims to explore the perceptions of five-star hotel managers about the reward systems offered to employees. Further, this paper attempts to explore the influence and impact of the covid-19 pandemic on the employee reward systems offered at five-star hotels. A total of 14 interviews were conducted with managers working in four selected five-star hotels. The study used semi-structured interviews to collect qualitative data. The data were analysed using Creswell’s six steps. The study's findings indicate that managers offered distinct types of rewards to their employees, including extrinsic and intrinsic rewards. Managers revealed that extrinsic rewards, specifically money, are the most preferred rewards. The study revealed that the impact of the Covid-19 pandemic led to hotels adjusting their employee reward systems to offer less extrinsic rewards and more intrinsic rewards. This paper concludes by recommending strategies to hotel management for enhancing the type of rewards offered to employees and offering utilisation of effective intrinsic rewards. This is to ensure that employees increase their value towards intrinsic rewards as much as they value extrinsic rewards   Implications for future research are also presented.
A Systematic Literature Review on Career Commitment, Job Insecurity, and Turnover Intentions in the Tourism Industry
Authors: Javed Mohsin , Vaculčiková Zuzana , Tučková Zuzana
Published: May 2023

The tourism industry is well-known in the services sector. However, unstable jobs and insecure careers have impacts on career commitment, which are major concerns for the relevant stakeholders. The recent experience of the global pandemic COVID-19 has also exacerbated the jobs situation and reiterated the prevailing uncertainty in the tourism industry. Therefore, the aim of the present study is to carry out a systematic literature review (SLR) for exploring and analyzing the published scientific studies on the specific issue and highlight areas for further research. The systematic literature review based on PRISMA framework was follows, considering criteria of identification, screening, eligibility, and inclusion. Initially, 200 records were identified, ended with 32 included records for detailed review. Results indicates the use of unethical pro-organization behavior (UPoB), anti-social activities, working conditions, relationship between worker and supervisor, and some controllable and uncontrollable factors significantly impact turnover intentions of employees, requires mitigation through certain staff retention policies, particularly under uncertain and crises driven situations. The study provides further research directions for researchers, related to the theoretical and practical aspects. Limitations of the study are discussed in the concluding part of the article.
Digital transformation: a study of the actions taken by museums during the pandemic.
Authors: Perigolo Menezes Rodolfo , Marques Fernandes June , Luis Silva André , Paula Reis Luciana
Published: May 2023

The Covid-19 pandemic impacted the world economies. Among the most affected sectors is the service sector, with the tourism segment standing out. Museums, parks, theatres, and tourist monuments had a great challenge with the period of social detachment. Digital transformation was the way adopted by companies to connect with their audiences and, consequently, contribute to the different segments of the value chain such as accommodation, transport and leisure and recreation. Thus, the managers of tourist attractions bet on entrepreneurial actions supported by digital transformation to change the business model in the face of the new pandemic scenario. The literature is still scarce to explore these actions adopted by museums worldwide. Thus, the research aims to identify the actions related to digital transformation adopted by museums in Ouro Preto during the pandemic period and compare them with the actions adopted by other museums around the world.  Ouro Preto is a historical city of Brazil, conferred by Unesco. These museums are one of the main attractions of the city, whose economy is anchored in this segment of the service sector. This research comprises a Systematic Literature Review, using the PRISMA method. The literature served as a basis for the preparation of the protocol for collecting information from museums in Ouro Preto, guiding the comparative study of the actions practiced by them and compared with actions in the world. The study identifies the digital presence of museums on social platforms and verifies the reaction of these organisations to the pandemic.  The information was collected in 12 museums. The protocol was answered through secondary data published on Facebook, Twitter, Instagram and digital platforms used by the museums. The results show differences between the strategies of Ouro Preto museums and other museums. It was observed that Ouro Preto museums adopted a more passive strategy when compared to the strategies adopted by other museums in the world. This result demonstrates the lack of an improvement agenda of adopting advanced technologies to increase the added value of museums.
Profile of the Professional in Tourism and Hotel Business Administration in Colombia Post Pandemic
Authors: Velásquez Moreno Leidy Marcela , Mora Forero Jorge Alexander , Salgado Moreno Angie Lorena
Published: May 2023

This article presents a process of inquiry to describe the professional profile of the tourism sector, demanded by Colombian companies in the post-pandemic period. The objective of this article is to validate that what students are learning through Higher Education Institutions that train professionals in hospitality and tourism in Colombia at the professional level, corresponds to the needs of the sector. The categories covered in this article are tourism and education. The approach is qualitative where the analysis is interpretative and reflective, seeking to understand the experience of the professional profile of the tourism sector. Likewise, the instruments used were interviews with different actors of the sector to present and analyse the professional profile, knowing what is critical point of knowledge and the soft skills required to positively impact the sector through its management contributing to the competitiveness of Colombian tourism recognizing the professional demand of the sector; as a result of this exercise, it was evidenced that the level of education in tourism is a relevant factor that can directly affect the competitiveness of the tourism sector and the economy of the countries.
Teacher Actions in Improving Early Childhood Literacy to Stimulate Critical Reasoning through Picture Cards
Authors: Pahenra  , Amalia Wa Ode Sari , Usman  , La Ndibo Yaman , Ichwantiy sabir Ridha
Published: May 2023

Learning literacy in early childhood is the key needed by children to improve children's critical reasoning skills, with the media used as picture letter cards. because it is in accordance with the standard of learning in children, namely playing while learning and having fun. Accordingly, this research is remembered for its Class Action Research type which means improving children's literacy skills through picture cards by stimulating children's critical reasoning abilities. The results showed that there was an increase in children's literacy skills in Nambokido Kindergarten, Unaaha District, Konawe Regency through picture card games. There is a very significant increase using picture letter cards, which is 61.90% in cycle 1 to 85.71% in cycle II. For this situation, the increase is 23.81%. In line with that, it is very good that it can be assumed that early childhood literacy skills can be improved through picture letter cards games
Implementasi Pengembangan Keprofesian Berkelanjutan dalam Intervensi PDBK di TK Pertiwi Puro Pakualaman (Pengembangan Diri)
Authors: Dwi Putri Fatmawati  , Windi Wulandari Iman Utama
Published: May 2023

Continuous professional development is the development of educator competencies, practically adapted to the needs of each teacher to increase professionalism. This study aims to implement PKB by PAUD teachers to improve their ability to provide educational services to students with special needs at Pertiwi Kindergarten Puro Pakualaman. The research design used in this research is a qualitative approach. The researcher uses a qualitative approach, because this research is field research, to describe and analyze phenomena, events, group activities, in this case the implementation of continuous professional development. The results of the study show that (1) Increased awareness of PAUD teachers to detect and identify PDBK (2) PAUD teachers have an understanding of the procedures for implementing PDBK detection and identification (3) PAUD teachers can detect and identify PDBK, so they can design programs that are in accordance with every child's needs.
ABSTRAK
Pengembangan keprofesian berkelanjutan adalah pengembangan kompetensi pendidik, secara praktis disesuaikan dengan kebutuhan masing-masing guru untuk meningkatkan profesionalisme. Penelitian ini bertujuan penerapan PKB oleh guru PAUD untuk meningkatkan kemampuan dalam memberikan layanan pendidikan kepada siswa berkebutuhan khusus di TK Pertiwi Puro Pakualaman. Desain penelitian yang digunakan dalam penelitian ini adalah pendekatan kualitatif. Peneliti menggunakan pendekatan kualitatif, karena penelitian ini merupakan penelitian lapangan, untuk mendeskripsikan dan menganalisis fenomena, peristiwa, kegiatan kelompok, dalam hal ini pelaksanaan pengembangan keprofesian berkelanjutan. Hasil penelitian menunjukan bahwa (1) Peningkatan kesadaran guru PAUD untuk melakukan deteksi dan identifikasi PDBK (2) Guru PAUD memliki pemahaman tentang prosedur pelaksanaan deteksi dan identikasi PDBK (3) Guru PAUD dapat melakukan deteksi dan identifikasi PDBK, sehingga dapat merancang program yang sesuai dengan kebutuhan setiap anak.
Analisis Efektivitas Animasi 2D terhadap Peran Orang Tua dalam Perilaku Gaming Anak
Authors: Lim Satria , Diny Anggriani Adnas
Published: May 2023

Permasalahan adiksi dalam bermain game online pada kalangan anak-anak hingga para remaja merupakan salah satu fenomena umum yang berpengaruh terhadap performa akademik anak-anak hingga para remaja dan sering kita temukan saat ini. Permasalahan adiksi bermain game online kerap berkaitan dengan pengaruh lingkungan keluarga terutama pada pola asuh para orang tua terhadap anaknya dimana peran dan pengetahuan orang tua dalam membatasi mobilitas anaknya dalam bermain game online berperan penting dalam membantu dalam membatasi permasalahan adiksi bermain game online. Tujuan dari penelitian ini adalah untuk merancang dan menghasilkan sebuah video animasi 2D mengenai pentingnya peran para orang tua dalam membatasi adiksi bermain game online anaknya menggunakan bantuan dari software Clip Studio Paint EX serta software Sony Vegas Pro 1.4 yang diharapkan dapat membantu mengingatkan pentingnya peran para orang tua dalam membatasi mobilitas waktu bermain game anaknya dan dapat menjadi salah satu upaya yang mampu memberikan edukasi dalam menyampaikan sebuah pesan moral kepada para anak hingga para remaja untuk lebih menghargai waktu dan dapat membatasi lama waktu bermain game online. Metode penelitian yang digunakan dalam penelitian ini adalah Research and development serta model siklus Multimedia Development Life Cycle dalam merancang dan mengembangkan animasi.
Peran Executive Function (Fungsi Eksekutif) terhadap Kesiapan Sekolah: Pemahaman Guru PAUD
Authors: Muchlisin Muchammad Arif , Ika Juhriati  , Dwiyani Anggraeni  , Rini Meiwaty  , Rini Arbaniyah
Published: May 2023

Previous research discussed teachers' understanding of the role of the executive function in learning mathematics, reading, arithmetic, and those with neurological disorders. The focus of this research is to explore teachers' understanding of the role of the executive function on school readiness. A quantitative approach is applied in this study with a survey model. A total of 95 teachers of Early Childhood Education (PAUD) in Bekasi and Klaten Regencies participated in filling out the questionnaire. Data was collected using a questionnaire instrument by considering several literatures. Research data analysis was assisted by the SPSS version 25 program to present data descriptively, then analyzed by One-Way ANOVA, Two-Way ANOVA and independent sample t tests. The first finding indicates that PAUD teachers consider the role of the executive function for school readiness to be quite important. Then, this understanding is not related to the teacher's years of teaching experience. In addition, teachers who know about executive functions differ significantly from teachers who do not know about executive functions. The implications of these findings are discussed.
ABSTRAK
Penelitian sebelumnya membahas tentang pemahaman guru terhadap peran fungsi eksekutif terhadap pembelajaran matematika, membaca, aritmatika, dan dengan gangguan neurologis. Fokus penelitian ini adalah untuk mengeksplorasi pemahaman guru tentang peran fungsi eksekutif terhadap kesiapan sekolah. Pendekatan kuantitatif diterapkan dalam studi ini dengan model survei. Sebanyak 95 guru Pendidikan Anak Usia Dini (PAUD) di Kabupaten Bekasi dan Klaten berpartisipasi untuk mengisi kuesioner. Data dikumpulkan menggunakan instrumen kuesioner dengan mempertimbangkan beberapa literatur. Analisis data penelitian dibantu dengan program SPSS versi 25 untuk menyajikan data secara deskriptif, kemudian dianalisis dengan uji One-Way ANOVA, Two-Way ANOVA dan independent sample t test. Temuan pertama mengindikasikan bahwa Guru PAUD menganggap peran fungsi eksekutif untuk kesiapan sekolah tergolong cukup penting. Kemudian, pemahaman ini tidak berhubungan dengan tahun pengalaman mengajar guru. Selain itu, guru yang mengetahui tentang fungsi eksekutif jauh berbeda secara signifikan dibandingkan dengan guru yang tidak tahu tentang fungsi eksekuitf. Implikasi dari temuan ini dibahas.
Static magnetic field amplification in high-T
c superconducting flux transformer equipped with multi-turn coil prepared using REBCO tape conductor
Authors: Komori Kazunori , Arisawa Shunichi , Tachiki Minoru , Ooi Shuuichi , Hayashi Tadayuki , Endo Kazuhiro
Published: May 2023

In this study, a high critical temperature (high-T
c) superconducting flux transformer is prepared using a commercially available REBa2Cu3O
y
(REBCO) high-T
c superconducting (HTS) tape conductor. The device configuration includes a 10 cm diameter pickup coil and a 3 cm diameter multi-turn input coil, which are formed by the “cut-and wind” method. The static magnetic field transfer efficiency between both coils has been estimated using inductance calculation of the multi-turn coils. The transfer efficiency measured is close to the calculation, and the field amplification of the transferred magnetic field compared to the applied field to the pickup coil is confirmed in the device which equipped with the multi-turn input coil. The magnitude of this magnetic field amplification has achieved to 125% of the applied field. This result suggests that the HTS flux transformer proposed in this study is effective in the sensitivity enhancement of the magnetometer for static magnetic fields.
The influence on competitive attractiveness and sustainability of regional development
Authors: Nazarova E. A.
Published: May 2023

Aim. To identify the influence of the environmental factor on the competitive attractiveness of regions in the inter-regional space of Russia and its individual regions.

Tasks. To determine the significance of the impact of applied statistical indicators that reflect the environmental component of the territory's competitive attractiveness on the factor of the quality of life and integral assessment; to analyze the extent to which the applied indicators can reflect the impact of environmental problems on the competitive attractiveness of the qual­ity of life.

Methods. In the present study, when considering and identifying the impact of the environmen­tal component on the competitive attractiveness of the regions, the concept of sequential detail­ing the study of the impact of competitive attractiveness factors: from the overall picture to the individual environmental indicators used.

Results. The obtained data are verified on the assessments of the competitive attractiveness of the regions of the Northwestern Federal District for 2020, calculated on the basis of official statistics.

Conclusions. The applied environmental indicators are not enough to assess the competitive attractiveness of the regions. The author proposes to expand their list by including new indica­tors in the factors of economy, innovation and human potential for a more objective account of the influence of ecology on the competitive attractiveness and sustainability of territorial development.
دور الوافدين في الحياة الفكرية والسياسية في النجف الأشرف في القرن العشرين
Authors: م. صالح عباس ناصر الطائي
Published: May 2023

تعد مدينة النجف منذ مايناهز الف عام مركزاً علمياً ريادياً يقصدها طلاب العلوم الدينية من مختلف انحاء العالم للدراسة في حوزتها العلمية ، وقد يقصدها من هم في سن صغيره  وكنتيجة حتمية لذلك يكون الانصهار في المجتمع النجفي ، والمشاركة لاحقا في النشاطات السياسية والفكرية والثقافية للمدينة ، كونهم نشأوا وترعروا فيها حتى باتوا كأبنائها ، ولمدينة النجف ذات الصبغة الدينية والثقافية سحرًا وتاثيرًا حتى على الوافدين من الطلبة ممن هم في سن الشباب والنضج ، فيشاركوا ابنائها نشاطاتهم ، ياثروا ويتأثروا، فأكتسبت النجف بعض من عادات وثقافة الوافدين اليها ، ولقلة الدراسات التي تتناول التأثيرات المتبادلة بين الوافدين والسكان الاصليين للنجف جاءت فكرة البحث .
الرعب الجمعي وعلاقته بالخوف من الاتصال الاجتماعي
Authors: م.م زلزلة محمود عباس
Published: May 2023

مر العراق ومزال يمر بظروف وأحداث استثنائية عصفت ببناءة الانساني والاجتماعي.

 ان قيام الباحثين بدراسة مختلف الظواهر التي لها تأثير على المجتمع العراقي تقع على عاتق الجميع لذا تأتي الدراسة الحالية محاولة علمية للتعرف على طبيعة العلاقة بين الرعب الجمعي والخوف من الاتصال الاجتماعي لدى موظفي الدولة وقد توصلت الدراسة الى النتائج التالية:-

1-عينة البحث لديها شعور بالرعب الجمعي

2-لاتوجد فروق ذات دلالة احصائية في الرعب الجمعي لدى العينة حسب جنس(ذكور-اناث).

3-عينة البحث لديها خوف من الاتصال الاجتماعي اعلى من المتوسط الفرضي للمقياس.

4-لا توجد فروق ذات دلالة احصائية في الخوف من الاتصال الاجتماعي حسب جنس(ذكور –اناث)

5-توجد علاقة بين الرعب الجمعي والخوف من الاتصال الاجتماعي

ثم ختم بحث بالتوصيات والمقترحات.
The Effect of Using Concept Mapping as a Pre-Writing Stage Strategy on Iraqi EFL College Students’ Achievement in Essay Writing
Authors: Narmeen Mahmood Muhammad
Published: May 2023

This study is an attempt to investigate the effect of using concept mapping as a prewriting strategy on Iraqi EFL college students’ achievement in essay writing.  To fulfill the aims of the study, the researcher has adopted two null hypotheses. The first states that there is no statistically significant difference between the achievement mean scores of the students who are taught essay writing through concept mapping as a pre-writing strategy and those who are taught essay writing through the conventional way. The second hypothesis states that there is no statistically significant difference between the experimental group students’ achievement mean scores in the organization, content and quality of expressions in the pre and posttests. To achieve the aim of the study, a ten-week experiment was conducted using the pretest-posttest non-equivalent groups design. Two groups of 105 students were selected from the population of third year students/College of Education for Women-Department of English during the academic year (2013-2014). One group was selected as the experimental group (namely section B) and another group was selected as the control group (namely section C). Both students of the experimental and control groups were exposed to pre and posttests. Using the t-test for two independent samples, it is found that there is a statistically significant difference in favour of the experimental group; whereas, by using t-test for two dependent samples, it is found out that there is a significant development in the experimental group students’ achievement in organization, content and style and quality of expression. This indicates that using concept mapping as a prewriting strategy is more effective than the presentation- practice- production teaching or the Lecture Method teaching. Conclusions, recommendations and suggestions for further studies are put forward.