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Article
Publication date: 26 March 2024

Jingqiong Sun, Junren Ming, Xuezhi Wang and Yawen Zhang

This paper aims to examine the impact of the COVID-19 infodemic on the public’s online information behaviour, offering insights critical for shaping effective informational…

101

Abstract

Purpose

This paper aims to examine the impact of the COVID-19 infodemic on the public’s online information behaviour, offering insights critical for shaping effective informational responses in future public health emergencies.

Design/methodology/approach

This paper uses a structured online survey with 27 targeted questions using a five-point Likert scale to measure eight variables. Data analysis is conducted through structural equation modelling on 307 valid responses to rigorously test the research hypotheses.

Findings

This paper indicates that information quality significantly impacts the public’s capacity to select, share and use online information. Additionally, the comprehensibility of information plays a crucial role in shaping the public’s behaviours in terms of online information exchange and usage. The credibility of information sources emerges as a key determinant influencing the public’s online information selection, exchange and utilization behaviour. Moreover, social influence exerts a substantial effect on the public’s online information selection, acquisition, exchange and utilization behaviour. These findings highlight the presence of universality and sociality, mediation and guidance, as well as the purposefulness and selectivity performed by the public’s online information behaviour during an infodemic.

Originality/value

This paper introduces a novel research model for assessing the influence and identifies the patterns of the public’s online information behaviour during the COVID-19 infodemic. The findings have significant implications for developing strategies to tackle information dissemination challenges in future major public health emergencies.

Details

The Electronic Library , vol. 42 no. 2
Type: Research Article
ISSN: 0264-0473

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Book part
Publication date: 14 December 2023

You-De Dai, Giun-Ting Yeh, Tsungpo Tsai, Yi-Chun Chen and Yuan-Chiu Chen

This study develops a structural model to examine the relationships among subjective perception of health, subjective perception of economic and social support, the perceived…

Abstract

This study develops a structural model to examine the relationships among subjective perception of health, subjective perception of economic and social support, the perceived freedom in leisure, leisure satisfaction, and the well-being of elders. The subject of this study is the elderly who participated in leisure activities at Evergreen Academy in Kaohsiung City. Convenience sampling and quota sampling are adopted. 1,200 self-administered questionnaires are distributed, and 535 are valid, with a response rate of 45%. The results of this study show that subjective perception of health will positively affect perceived freedom in leisure; subjective perception of economics will positively affect perceived freedom in leisure and well-being; social support will positively affect perceived freedom in leisure, leisure satisfaction, and well-being; perceived freedom in leisure will positively affect leisure satisfaction and well-being; leisure satisfaction will positively affect well-being. There are significant differences in the subjective perception of economic and social support between male and female elders. There are significant differences in the subjective perception of economic, leisure satisfaction, and well-being among those with different education levels.

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Article
Publication date: 1 August 2016

Chih-Ta Yen and Guan-Jie Huang

The purpose of this paper is to propose a new optical steganography framework that can be applied to public optical binary phase-shift keying (BPSK) systems by transmitting a…

172

Abstract

Purpose

The purpose of this paper is to propose a new optical steganography framework that can be applied to public optical binary phase-shift keying (BPSK) systems by transmitting a stealth spectrum-amplitude-coded optical code-division multiple-access signal through a BPSK link.

Design/methodology/approach

By using high-dispersion elements, the stealth data pulses temporally stretch and the amplitude of the signal decreases after stretching. Thus, the signal can be hidden underneath the public signal and system noise. At the receiver end, a polarizer is used for removing the public BPSK signal and the stealth signal is successfully recovered by a balanced detector.

Findings

In a simulation, the bit-error rate (BER) performance improved when the stealth power increased.

Research limitations/implications

The BER performance worsens when the noise power become large. Future work will consider increasing the system performance during high-noise power situation.

Practical implications

By properly adjusting the power of the amplified spontaneous emission noise, the stealth signal can be hidden well in the public channel while producing minimal influence on the public BPSK signal.

Originality/value

In conclusion, the proposed optical steganography framework makes it more difficult for eavesdroppers to detect and intercept the hidden stealth channel under public transmission, even when using a dispersion compensation scheme.

Details

Engineering Computations, vol. 33 no. 6
Type: Research Article
ISSN: 0264-4401

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