bluuebunny/crossref_metadata_2025_split huggingface dataset:
Size and Shape Differences in Fore Wings of Honey Bee (Apis Mellifera) Queens, Workers and Drones
Authors: Tofilski Adam , Kaur Hardeep , Łopuch Sylwia 
Published: March 2024

Abstract
The three honey bee phenotypes - queens, workers, and drones differ in the size and shape of body parts. We used a large dataset to describe how the three phenotypes differed with regard to fore wings and applied the methodology of geometric morphometrics to measure the wings using the coordinates of nineteen landmarks. On average, queens had wings larger than workers, but the two castes had a broad overlap. Drones, on the other hand, had distinctly larger wings. Wing shape differed markedly among queens, workers and drones and can be used to reliably differentiate them from one other. Surprisingly, the fore wing shape of workers was more similar to that of drones than to that of queens. Small queens were not more similar to workers than large queens, and large workers were not more similar to queens than small workers. Because wing size, unlike body mass, does not change over the life of the queen, it can be used to evaluate the quality of a queen throughout its life and not only during a short period after emergence. We provide a large number of wing images of queens and drones, which can be used as a reference in future studies.
Haplotype Affiliation of Varroa Destructor in Selected Locations From Poland and Ukraine
Authors: Dziechciarz Piotr , Domaciuk Marcin , Iller Maria , Kerek Stefan , Borsuk Grzegorz 
Published: March 2024

Abstract
The virulence patterns observed in viruses transmitted by Varroa destructor implied a potential association of these honey bee pests in Poland with the Korean haplotype. Nevertheless, it is noteworthy that this hypothesis lacked direct verification. Therefore, the aim of the study was to determine the haplotype affiliation of V. destructor mites infesting bees in Poland and Ukraine. Adult females were collected from drone brood from honey bee colonies maintained in the apiary at the University of Life Sciences in Lublin, Poland, and the apiary in Synevyr National Park in Ukraine. The haplotype affiliation was determined through the sequencing of the cytochrome oxidase subunit I gene (CO I; 929 bp) fragment. Based on the phylogenetic comparison with 84% bootstrap support, the V. destructor females from both locations were confirmed to represent three haplotypes: Korean 1 (AmK1-1), Korean 2 (AmK1-2), and Chinese 4 (AmK1-4). They are the most virulent types of this parasite worldwide and in Poland. Concurrently, the present study confirms that the Synevyr National Park in Ukraine is isolated from alien bee subspecies, but is not free from alien parasites.
Young Children, Growing Children – How Does Their Presence in the Family Affect Time Allocation Decisions for Men and Women?
Authors: Garsztka Przemysław 
Published: March 2024

Abstract

Objective
This paper attempts to examine the influence of selected characteristics of household members on how they manage their time as an economic resource.

Methodology
In order to account for the interpenetration of different spheres of people’s activity and preferences regarding their choice, a multiple-equation model, in the form of structural equations, was used.

Findings
Among the potential determinants of individuals’ time allocation, the following were identified: gender, age, labor force participation, wage rates, the presence of children, education level, and the structure of the household itself, including the presence of a partner. The conclusions, formulated on the basis of the findings, focus on gender inequalities in terms of the time devoted to work and the role of children in shaping the daily activity of adults.

Value Added
While the presence of a young child primarily results in a decrease in paid-work time and an increase in household work for women, older children tend to help with housework, which mainly results in a reduction in housework for men. It was also observed that taking care of a child by a single person, irrespective of gender, is associated with a significantly greater increase in total domestic work time compared to the situation in households formed by two adults.

Recommendations
The traditional version of the neoclassical theory describes the demand for market goods and services separately. The new household theory breaks with this dichotomy and shows that consumption decisions cannot be interpreted without also considering the supply of labor, or the time allocation of individuals in general. Work on time allocation is important not only in the context of understanding the determinants of non-market activity and leisure time, but also in research on the valuation of working time. Time use databases combined with monetary budget data are used in analyses of the economics of human resource use and in new methods for estimating consumption among household members. Research on Polish households in this area is the next stage of research work that will be undertaken in the near future.
Positive emotions influencing consumer shopping behavior on e-commerce platforms
Authors: Cuong Dam Tri 
Published: March 2024

Abstract
E-commerce has become an integral part of people's daily lives due to the extensive use of the Internet. Moreover, customers' positive emotions are the good feelings that a person has because of their mood or good circumstances. These can include happiness, love, liking, pleasure, or joy. This study proposes to provide an analytical framework that includes factors (sales promotion, hedonic shopping motivation, and personalization) that affect positive emotions, which in turn affects the customers' intentions to make purchases and their actual behavior within the context of e-commerce platforms. This study used the cognitive emotion theory and emotion-action tendency connection as a theoretical framework. Convenience sampling was used in an online survey to collect data from 294 clients. The findings discovered that consumers' positive emotions in e-commerce platforms in Vietnam were affected favorably by key factors such as sales promotion (β = 0.502), hedonic shopping motivation (β = 0.217), and personalization (β = 0.207). Out of these factors, sales promotion (β = 0.502) was found to have the most favorable impact on customers' pleasant feelings. In the same way, customers' pleasant emotions (β = 0.758) had a strong positive influence on their inclination to shop. Furthermore, their shopping intention (β = 0.822) also had a considerable positive influence on their behavior. The study's results may help online retailers fully understand the determinants that affect customers' pleasant feelings, shopping intentions, and behavior. With this knowledge, online stores will be able to improve how they sell products.
Managing big data and blockchain for enterprise internationalization process: Mediating role of dynamic accounting system capability
Authors: Pham Huy Quang , Vu Phuc Kien 
Published: March 2024

Abstract
This study develops and confirms a model that examines the relationship between Big Data Analytics Capabilities (BDAC), Blockchain Technology (BT), and Internationalization Process (IP). It also requires various efforts to explore how Dynamic Accounting Information System Capability (DAISC) mediates the interconnections between BDAC, BT, and IP. This study focuses on small and medium enterprises (SMEs) in Vietnam, which are widely recognized as crucial to the Vietnamese economy. The current research utilized the hypothetico-deductive method. The proposed model's hypothesized linkages were based on a comprehensive evaluation of relevant literature and investigations. The statistics database was created using a paper-and-pencil survey distributed to 612 accountants in SMEs in southern Vietnam utilizing the convenient and snowball sampling technique. A covariance-based structural equation modelling approach was used to assess the measurement and structural models in this research due to its ability to offer a strong foundation for analyzing intricate linkages within a research framework. The outcome confirmed the significant and positive relationships between BDAC, BT, and IP. Concurrently, these relationships were partially influenced by DAISC. The practitioners would greatly benefit from detailed insights on the findings, as they would provide guidance on how to identify and take advantage of the growth opportunities afforded by digital technology. Moreover, the observations could provide policymakers with new insights on necessary policy measures to support the application of digital technologies and encourage the implementation of a dynamic accounting information system, which could result in significant benefits in the future.
Roll Prediction and Parameter Identification of Marine Vessels Under Unknown Ocean Disturbances
Authors: Lee Sang-Do , Kim Hwan-Seong , You Sam-Sang , Yeon Jeong-Hum , Phuc Bui Duc Hong 
Published: March 2024

Abstract
This paper deals with two topics: roll predictions of marine vessels with machine-learning methods and parameter estimation of unknown ocean disturbances when the amplitude, frequency, offset, and phase are difficult to estimate. This paper aims to prevent the risky roll motions of marine vessels exposed to harsh circumstances. First of all, this study demonstrates complex dynamic phenomena by utilising a bifurcation diagram, Lyapunov exponents, and a Poincare section. Without any observers, an adaptive identification applies these four parameters to the globally exponential convergence using linear second-order filters and parameter estimation errors. Then, a backstepping controller is employed to make an exponential convergence of the state variables to zero. Finally, this work presents the prediction of roll motion using reservoir computing (RC). As a result, the RC process shows good performance for chaotic time series prediction in future states. Thus, the poor predictability of Lyapunov exponents may be overcome to a certain extent, with the help of machine learning. Numerical simulations validate the dynamic behaviour and the efficacy of the proposed scheme.
Study of the Hydrodynamic Characteristics of Anti-Heave Devices of Wind Turbine Platforms at Different Water Depths
Authors: Xu Hongyuan , Wang Wei , Xie Yonghe 
Published: March 2024

Abstract
This paper focuses on the effect of water depth on the hydrodynamics of floating offshore wind turbines with open-hole anti-heave devices. The three-floating-body wind turbine platform is used as the primary research object in this paper. The effect of water depth on the reduction of the heave motion of a floating platform with anti-heave devices is systematically investigated through a series of experiments and numerical simulations. The results show high agreement between the test results and simulations, with larger values of heave motion in deep water. A wind turbine platform with anti-heave devices can effectively reduce the lifting and sinking motions when the wave period is large.
Universal Sea/Fem Based Method for Estimation of Vibroacoustic Coupling Loss Factors in Realistic Ship Structures
Authors: Drężek Michał , Augustyniak Marek 
Published: March 2024

Abstract
Despite the fact that there is an existing body of literature addressing the computation of Coupling Loss Factors (CLFs) via the Finite Element Method (FEM), no publications have sufficiently taken into account real structural joints in their approach. Previous research has focused on academic cases of trivial connections, rarely involving more than two steel plates. To enable Statistical Energy Analysis (SEA) on a real ship, a methodology for determining CLFs for non-trivial systems is proposed, considering realistic boundary conditions and irregularities that can occur in marine structures. Based on the method, a library of CLFs is created by selecting the tested connections to enable modelling of about 90% of the acoustic paths on an existing jack-up vessel. Boundary conditions were set by introducing spring elements with a stiffness calibrated to the type of connection and taking the adjacent structure into account. In previous works, CLFs were determined for basic connections of rectangular plates. The lack of scantling variations, ignoring discontinuities and only defining parallel edges in the considered models, lead to the overestimation of energy transmission in real structures. To consider the influence of the above, random deviations from the initial stiffness of the springs at individual edges and point restraints at random points are introduced in this paper.
Investigating Fuel Injection Strategies to Enhance Ship Energy Efficiency in Wave Conditions
Authors: Ghaemi Hossein , Zeraatgar Hamid , Barjasteh Mojtaba 
Published: March 2024

Abstract
The prediction of fuel consumption and resulting transportation costs is a crucial stage in ship design, particularly for conditions involving motion in waves. This study investigates the real-time fuel consumption of a container ship when sailing in waves. The overall ship performance is evaluated using a novel non-linear coupled hull-engine-propeller interaction model. A series of towing tank experiments for hull resistance in waves and propeller performance are conducted. The ship engine is mathematically modelled by a quasi-steady-state model equipped with a linear Proportional-Integrator (PI) governor. Various scenarios of shipping transportation are studied, and the resulting instantaneous fuel consumptions and their correlation to other dynamic particulars are demonstrated. Additionally, daily fuel consumption and fuel cost per voyage distance are presented. It is also shown that the controller can effectively adjust the fuel rate, resulting in minimum fuel consumption. The study concludes that there is no correlation between fuel consumption and the frequency of fuel rates. The present framework and mathematical model can also be employed for ship design and existing ships to predict the total required energy per voyage.
Practical Finite-Time Event-Triggered Control of Underactuated Surface Vessels in Presence of False Data Injection Attacks
Authors: Chen Liping , Sun Minghua , Wang Li 
Published: March 2024

Abstract
The results of studies on a trajectory-tracking problem affected by false data injection attacks (FDIAs) and internal and external uncertainties are presented in this paper. In view of the FDIAs experienced by the system, we compensate for the serious navigation deviation caused by malicious attacks by designing an online approximator. Next, we study the internal and external uncertainties introduced by environmental factors, system parameter fluctuations, or sensor errors, and we design adaptive laws for these uncertainties to approximate their upper bounds. To further enhance the response velocity and stability of the system, we introduce finite-time technology to ensure that the unmanned underactuated surface vessels (USVs) reach the predetermined trajectory-tracking target within finite time. To further reduce the update frequency of the controller, we introduced event-triggered control (ETC) technology. This saves the system’s communication resources and optimizes the system. Through Lyapunov stability theory, a strict and complete stability analysis is provided for the control scheme. Finally, the effectiveness of the control scheme is verified using two sets of simulations.
Strategies Supporting the Enhancement of Adherence to Procurement Standards by the Kwa-Zulu Natal Department of Health
Authors: Mkhize Sithembile Gadiosa , Dorasamy Nirmala 
Published: March 2024

Purpose: Regardless of the reforms and the employment of Supply Chain Management (SCM) as a strategic tool, South Africa still faces immense challenges in its procurement practices. Non-compliance with public procurement guidelines cannot be ignored because it has a significant cost to the government and the public as taxpayers.

Methods: Mixed methods of data collection were employed in this paper to gather information from the relevant decision-makers and officials in finance and the SCM component. She found that unavailability of SCM staffing norms, shortage of staff, lack of supervision, shortage of skills, unavailability of an E-procurement system, and negligence are major determinants for non-compliance.

Results and Conclusion: These findings have relevance for the Kwa-Zulu Natal Department of Health and also for the South African Public Sector as it strives to achieve a clean audit on procurement and contract management.

Research implications: The Auditor General’s reports for the financial year 2017/2018 and 2018/2019 confirmed that this Department had received qualified audit opinions for two consecutive years for incurring irregular expenditure on procurement and contract management following non-compliance with procurement guidelines.

Originality/value: This paper examined the possible actions to improve the Kwa-Zulu Natal Department of Health's adherence to procurement standards.
Establishment of Workers’ Representative Organizations Under the Current Laws of Viet Nam
Authors: Hoi Dao Xuan , Khoa Le Dang , Tan Pham Van 
Published: March 2024

Purpose: The purpose of the article research the theoretical issues and practical establishment of workers’ representative organizations at grassroots level, based on which the author proposes some recommendations regarding the establishment of workers’ representative organizations at grassroots level in Viet Nam.

Theoretical framework: The research employs theories about the establishment of workers’ representative organizations in Vietnam, regulations on the establishment of workers’ representative organizations, and mechanisms that apply to the establishment of workers’ representative organizations in Vietnam.

Design/methodology/approach: The research employs three common methods in legal science research: (1) Legal analysis method; (2) Legal efficiency evaluation method; and (3) Comparative legal method. The above research methods help compare and contrast theories of the establishment of workers’ representative organizations in Vietnam and bring out some essential findings.

Findings: Some valuable findings have been revealed such as the formulation and development of the establishment of workers’ representative organizations in Vietnam, some theoretical issues, and limitations on regulations on the establishment of workers’ representative organizations in Vietnam.

Research practical and social implications: The article proposes some tasks remaining undone, and further tasks will be fulfilled in the future. The article may support many developments in future research in Vietnam.

Originality/value: The research on the establishment of workers’ representative organizations in Vietnam become more and more urgent and very important in Vietnam.
Virtual Based Principal Leadership Model in Increasing Performance and Quality of Middle Education
Authors: Halik Abdul , Das St. Wardah Hanaf e , Naim Muhammad , Rafiuddin  , Safri  , Ridwan  , Umasagi Hamzah , Poli Muh. 
Published: March 2024

Purpose: The purpose of this article is to introduce a new analytical lens for examining the role of Assisted Reproductive Technology (ART) in the construction of the human body and motherhood from a post-humanistic perspective.

Method: Employing a qualitative methodology, this study conducted in-depth interviews, observations, and analysis of ART laboratory practices, utilizing samples drawn from infertility patients and ART laboratory work. The investigation delved into the spatial dynamics of ART operations within clinical settings, elucidating how technology influences the construction of the human body and the concept of motherhood.

Results and conclusion: The findings reveal that ART functions not merely as a corrective measure for physical infertility but as a techno-space that reconfigures the human body to facilitate reproduction and the construction of motherhood. The spatiality enacted by ART disrupts conventional notions of human nature, engendering what is termed as techno-maternity, wherein the ontological understanding of motherhood transcends biological constraints and assumes a technological dimension.

Research implications: This study underscores the imperative of adopting a post-humanistic perspective in examining the societal implications of ART. By elucidating the spatial and technological dimensions of ART's influence on human embodiment and motherhood, this research offers insights into broader socio-cultural transformations within current ages.

Originality/value: This research contributes to the academic discourse by presenting a novel analytical framework that illuminates the intricate interplay between technology, embodiment, and societal constructions of motherhood. By delineating the techno-spatial dynamics of ART, this study expands the understanding of how technological interventions shape human experiences and identities in the context of reproductive health.
A Mathematical Modeling of the Vaccination Effect on the SARS-CoV-2 Transmission: Analysis and Simulation
Authors: Saadi Rami Raad , Al-Husseiny Hassan F. 
Published: March 2024

Several illustrative studies on the mathematical modeling and analysis of the Coronavirus have been carried out in a short period of time. There is not enough work that accounts for the vaccination campaign's two stages. In this work, a mathematical model is created to show the impact of the recent two-stage vaccination treatment on the Coronavirus. In the proposed model, five compartments are constructed, namely the susceptible individuals , the first dose of vaccination , the second dose of vaccination , infected and recovered population . The uniqueness, boundedness and existence of the solutions of this model have been discussed. All potential model equilibrium points are determined. The local as well as global stability of the system in terms of the basic reproduction number is investigated. Numerical simulation is also carried out to investigate the influence of parameters affecting the dynamics of the model and to support the gathered analytical findings of the model.
Kinematic Properties of the Gaseous Stellar Dynamics Using the Tully-Fisher Relation in the Different Types of Spiral Galaxies
Authors: J. Rabab M. , Al Najm M. N 
Published: March 2024

The goal of this paper is to show the kinematic characteristics of gaseous stellar dynamics using scaling coefficient relationships (such as Tully-Fisher) in different spiral galaxies. We selected a sample of types of spiral morphology (116 early, 150 intermediate, and 146 late) from previous literature work, and used statistical software (statistic-win-program) to find out the associations of multiple factors under investigation, such as the main kinematic properties of the gaseous-stellar (mass, luminosity, rotational speed, and baryons) in different types of spiral galaxies. We concluded that there is a robust positive connection between Log Vrot.max.) and Log Mstar(B-V), as well as between Log Vrot.max. and Log Mbar (B-V) in three types of spiral galaxies (early, intermediate, and late), with a sharply negative relationship found between and Log MB in addition to the relationship between Log Mbar (B-V) and Log MB, with the partial correlation coefficient (R ≈ - 0.85) in all the different types of spiral galaxies. Our results indicated that for early and intermediate kinds of spiral galaxies, the baryonic disk mass and the maximum rotational speed fit best with the formula Mbar (B-V) ≈ 60V4rot.max., but this relationship seems to be stronger in late-type spiral galaxies with Mbar (B-V) ~ 60 V5rot.max . Whenever the observable stars and atomic hydrogen gas were taken into account, several scientific facts show that additional extremely massive baryon stores are virtually probably present in late spiral galaxies.