2,073 research outputs found
Cost-effective external interference for promoting the evolution of cooperation
Full text linkThe problem of promoting the evolution of cooperative behaviour within populations of self-regarding individuals has been intensively investigated across diverse fields of behavioural, social and computational sciences. In most studies, cooperation is assumed to emerge from the combined actions of participating individuals within the populations, without taking into account the possibility of external interference and how it can be performed in a cost-efficient way. Here, we bridge this gap by studying a cost-efficient interference model based on evolutionary game theory, where an exogenous decision-maker aims to ensure high levels of cooperation from a population of individuals playing the one-shot Prisoner's Dilemma, at a minimal cost. We derive analytical conditions for which an interference scheme or strategy can guarantee a given level of cooperation while at the same time minimising the total cost of investment (for rewarding cooperative behaviours), and show that the results are highly sensitive to the intensity of selection by interference. Interestingly, we show that a simple class of interference that makes investment decisions based on the population composition can lead to significantly more cost-efficient outcomes than standard institutional incentive strategies, especially in the case of weak selection.</p
Fostering cooperation in structured populations through local and global interference strategies
Full text linkWe study the situation of an exogenous decision-maker aiming to encourage a population of autonomous, self-regarding agents to follow a desired behaviour at a minimal cost. The primary goal is therefore to reach an efficient trade-off between pushing the agents to achieve the desired configuration while minimising the total investment. To this end, we test several interference paradigms resorting to simulations of agents facing a cooperative dilemma in a spatial arrangement. We systematically analyse and compare interference strategies rewarding local or global behavioural patterns. Our results show that taking into account the neighbourhood's local properties, such as its level of cooperativeness, can lead to a significant improvement regarding cost efficiency while guaranteeing high levels of cooperation. As such, we argue that local interference strategies are more efficient than global ones in fostering cooperation in a population of autonomous agents.</p
sj-pdf-1-das-10.1177_09579265231217063 – Supplemental material for Nationalism in discursive legitimation: An analysis of the Vietnamese Communist Party’s ‘bamboo diplomacy’ discourse on digital journalism
No full textSupplemental material, sj-pdf-1-das-10.1177_09579265231217063 for Nationalism in discursive legitimation: An analysis of the Vietnamese Communist Party’s ‘bamboo diplomacy’ discourse on digital journalism by My Han Trinh and Tuan Anh Vu in Discourse & Society</p
Modified discrete vortex method to simulate the unsteady aerodynamics of two-dimensional insect-like flapping wing models in hover
No full textThe association between corporate governance and artificial intelligence (AI) in the banking sector in ASEAN
Full text linkNowadays, the presence of technology in our life is undeniable when it is used in every industry. Especially in the time of the pandemic, the role of technology is becoming more obvious. The banking industry has followed technology 4.0 to stay competitive and sustainable with many changes in operations and services thanks to technology. One of the most outstanding technology is artificial intelligence. In terms of using AI and technology, banks in ASEAN are proving themselves to be top competitors with high growth in revenue and the quality of technology systems.
In this research, the author focused on defining the relationships between three factors: the board of directors, the investment in AI of banks in ASEAN, and the profitability. Besides, the author explored the relationship between Human Resources and AI - two capital of banks that might have conflicts. The author used secondary data of 43 banks in ASEAN collected from their annual reports and financial statements. Descriptive statistics, single and multiple linear regression were applied in Excel software.
The empirical findings revealed that the board of directors has influenced the in-vestment in AI and the investment in AI has impacts on the profitability of banks. Also, the AI investment does not affect the human resources of the banks. The results can be used for further researches on the practical benefits of using AI and for banks, the boards of directors can read to decide their future AI plan
Transition flight control simulations of bioinspired FWMAV with extended unsteady vortex-lattice method
No full textThis study carries out the transient flight control simulation of a Flapping-Wing Micro Air Vehicle using Extended Unsteady Vortex-Lattice Method. This method uses the panel method and unsteady vortex-lattice (UVLM) method including the leading-edge suction analogy for leading-edge vortices (LEVs) effect and the vortex-core growth model for the effect of eddy viscosity in the vortex wake. This method has advantages in that it requires relatively less computational cost compared to CFD and provides more precise aerodynamic forces and moments than the conventional quasi-steady aerodynamic model. Based on the multibody dynamic analysis with the aerodynamic model, gain-scheduling LQR controller is designed for non-linear system to track reference input
The key elements impacting employee engagement
Full text linkThe main objective of this thesis is to identify some key elements which have an important impact on employee engagement. Then, the company can consider these elements in order to successfully develop their human resource strategy. Also, the researcher provides the definition of Human Resources Management, Employee Engagement, as well as elements of employee engagement and other related theories. Therefore, it is essential to consider existing knowledge on what employee engagement is about. In order to make this research be more applicable, we use a case company. The key elements in impacting on employee engagement are within the scope of research as well as suggestions in developing and maintaining strategies of employee engagement. Additionally, this research will also concentrate on answering these research questions:
I. What are the key elements in developing and maintaining employee engagement?
II. What potential solutions will improve employee engagement at PHONG VU company?
In order to make this thesis be practical, the author employs quantitative method and single linear regression model to analyze the data of case company. By this method, the outcome is important to indicate the influence among elements of employee engagement. Additionally, the thesis also provides three types of engagement and the relationship between the key elements and these types of engagement. Then, sustainable strategies of human resources will be considered to help the company gain some benefits
Examining the interaction between free-living bacteria and iron in the global ocean
No full textThe model outputs, relevant data, and MATLAB scripts to reproduce the figures shown in the manuscript "Examining the interaction between free-living bacteria and iron in the global ocean" by Anh Le-Duy Pham, Olivier Aumont, Lavenia Ratnarajah, and Alessandro Tagliabue.
Please contact the corresponding author Anh Pham ([email protected] or [email protected]) for any questions
The Effects of Wing Mass Asymmetry on Low-Speed Flight Characteristics of an Insect Model
No full textWing asymmetries can be found in real insects and flapping-wing micro air vehicles. This paper investigates some characteristics, including the trim conditions, power requirements and passive open-loop dynamics of an insect model with the asymmetry in wing mass in low-speed flight. The motion of the insect model is obtained through a simulation framework that couples an unsteady vortex-lattice method and a multibody dynamics code. The results show that a heavier wing has to be moved with a larger stroke amplitude to compensate for the wing mass asymmetry. The power required by the heavier wing is also found greater. Moreover, we can observe the asymmetries in lateral dynamics while comparing dynamic responses due to rightward and leftward gust disturbances.
Uniqueness result for an age-dependent reaction-diffusion problem
No full textThis paper is concerned with an age-structured model in population dynamics. We investigate the uniqueness of solution for this type of nonlinear reaction-diffusion problem when the source term depends on the density, indicating the presence of, for example, mortality and reaction processes. Our result shows that in a spatial environment, if two population densities obey the same evolution equation and possess the same terminal data of time and age, then their distributions must coincide therein.This work is in commemoration of the first death anniversary of V. A. K's father. V. A. K thanks Prof. Nguyen Huy Tuan for introducing him the ultraparabolic problem. The work of V.A.K. was supported by the Research Foundation-Flanders (FWO) under the project 'Approximations for forward and inverse reaction-diffusion problems related to cancer models'.Lesnic, D (reprint author), Univ Leeds, Dept Appl Math, Leeds, W Yorkshire, England.
[email protected]
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