Chenggang Hua, Xing Yao and Jennifer A. Piatt
This study aims to examine the causal and reciprocal relationships between participation in travel and recreational activities and depression alleviation among survivors of…
Abstract
Purpose
This study aims to examine the causal and reciprocal relationships between participation in travel and recreational activities and depression alleviation among survivors of traumatic events. It seeks to uncover the transformative potential of these activities as nonpharmacological interventions and to provide insights that inform the therapeutic design of travel in rehabilitation contexts.
Design/methodology/approach
Using a longitudinal dataset, this study employs the random intercept cross-lagged panel model – a robust technique for evaluating causal relationships in nonexperimental longitudinal research – to assess the reciprocal effects between travel and recreation participation and depression severity over time.
Findings
Individuals with more severe depression are more likely to engage in travel as a coping mechanism. However, travel does not inherently alleviate depressive symptoms, likely because its physical and emotional demands often outweigh its benefits. This highlights the need to transform travel into structured interventions to maximize therapeutic potential. In contrast, recreational activities exhibit a stronger therapeutic effect, with early participation reducing depressive symptoms and lower depression levels, subsequently encouraging continued engagement in recreation over time.
Originality/value
By highlighting the interplay between social causation and social withdrawal theories, this research proposes transforming travel experiences into structured therapeutic interventions, pioneering a new perspective on integrating health and tourism studies. The study encourages researchers to adopt a holistic approach to understanding the health benefits of travel, considering both the influence of external factors on health and how individuals respond to their psychological state.
研究目的
本研究旨在深入探讨创伤事件幸存者参与旅行与娱乐活动与抑郁症状缓解之间的因果和相互作用关系, 旨在揭示这些活动作为非药物干预的潜在疗效, 并为康复场景下旅行的治疗性设计提供理论依据和实践参考。
研究方法
本研究利用纵向数据集, 采用随机截距交叉滞后面板模型(RI-CLPM)进行分析。该方法是一种适用于非实验性纵向研究的模型工具, 能够有效评估旅行与娱乐活动参与和抑郁严重程度之间的双向动态影响。
研究结果
研究发现, 抑郁程度较高的个体更倾向于将旅行作为一种应对机制。然而, 由于旅行活动的身体与情感成本通常超过其潜在收益, 旅行本身并未显著缓解抑郁症状。这表明, 需要将旅行体验转化为结构化的治疗干预, 以充分发挥其潜在价值。相较而言, 娱乐活动表现出更显著的治疗作用。早期参与娱乐活动能够有效降低抑郁症状, 而抑郁水平的降低反过来又会激励个体持续参与娱乐活动, 从而形成良性循环。
研究创新
本研究通过结合社会因果理论和社会退缩理论, 提出了有必要将旅行体验转化为结构化治疗干预的新视角, 为健康与旅游研究的整合提供了新的理论创新路径。同时, 本研究倡导从整体视角理解旅行的健康益处, 兼顾外部环境对健康的影响以及个体心理状态对行为的反馈作用, 为未来研究提供了重要启示。
Propósito
Este estudio tiene como objetivo examinar las relaciones causales y recíprocas entre la participación en actividades de viaje y recreación y el alivio de la depresión entre los sobrevivientes de eventos traumáticos. Busca descubrir el potencial transformador de estas actividades como intervenciones no farmacológicas y proporcionar ideas que informen el diseño terapéutico de viajes en contextos de rehabilitación.
Métodos
Utilizando un conjunto de datos longitudinales, este estudio emplea el Modelo de Panel Cruzado con Intercepto Aleatorio (RI-CLPM), una técnica robusta para evaluar relaciones causales en investigaciones longitudinales no experimentales, para analizar los efectos recíprocos entre la participación en viajes y recreación y la gravedad de la depresión a lo largo del tiempo.
Resultados
Las personas con depresión más severa tienden a participar en viajes como mecanismo de afrontamiento. Sin embargo, el viaje en sí no alivia inherentemente los síntomas depresivos, probablemente porque sus demandas físicas y emocionales suelen superar sus beneficios. Esto resalta la necesidad de transformar los viajes en intervenciones terapéuticas estructuradas para maximizar su potencial. En contraste, las actividades recreativas muestran un efecto terapéutico más fuerte, con una participación temprana que reduce los síntomas depresivos y niveles más bajos de depresión que fomentan la participación continua en recreación a lo largo del tiempo.
Originalidad
Al destacar la interacción entre las teorías de causalidad social y retirada social, esta investigación propone transformar las experiencias de viaje en intervenciones terapéuticas estructuradas, abriendo una nueva perspectiva para integrar estudios de salud y turismo. El estudio fomenta que los investigadores adopten un enfoque holístico para comprender los beneficios de salud de los viajes, considerando tanto la influencia de factores externos en la salud como cómo las personas responden a su estado psicológico.
Details
Keywords
- Travel participation
- Recreation participation
- Depression alleviation
- Survivors of traumatic events
- Longitudinal analysis
- Health tourism
- Wellness tourism
- 旅行参与
- 娱乐参与
- 抑郁症缓解
- 创伤事件幸存者
- 纵向分析
- 健康旅游
- 养生旅游
- participación en viajes
- participación en recreación
- alivio de la depresión
- sobrevivientes de eventos traumáticos
- salud mental
Xing Yao, Shao-Chao Ma, Ying Fan, Lei Zhu and Bin Su
The ongoing urbanization and decarbonization require deployment of energy storage in the urban energy system to integrate large-scale variable renewable energy (VRE) into the…
Abstract
Purpose
The ongoing urbanization and decarbonization require deployment of energy storage in the urban energy system to integrate large-scale variable renewable energy (VRE) into the power grids. The cost reductions of batteries enable private entities to invest energy storage for energy management whose operating strategy may differ from traditional storage facilities. This study aims to investigate the impacts of energy storage on the power system with different operation strategies. Two strategies are modeled through a simulation-based regional economic power dispatch model. The profit-oriented strategy denotes the storage system operated by private entities for price arbitrage, and the nonprofit-oriented strategy denotes the storage system dispatched by an independent system operator (ISO) for the whole power system optimization. A case study of Jiangsu, China is conducted. The results show that the profit-oriented strategy only has a very limited impact on the cost reductions of power system and may even increase the cost for consumers. While nonprofit-oriented energy storage performs a positive effect on the system cost reduction. CO2 emission reduction can only be achieved under a high VRE scenario for energy storage. Integrating energy storage into the power system may increase CO2 emissions in the near term. In addition, the peak-valley spread is crucial to trigger operations of profit-oriented energy storage, and the profitability of energy storage operator is observed to be decreasing with the total storage capacity. This study provides new insights for the energy management in the smart city, and the modeling framework can be applied to regions with different resource endowments.
Design/methodology/approach
The authors characterize two battery storage operating strategies of profit- and nonprofit-oriented by adopting a simulation-based economic dispatch model. A simulation from 36 years of hourly weather data of wind and solar output from case study of Jiangsu, China is conducted.
Findings
The results show that the profit-oriented strategy only has a very limited impact on the cost reductions of power system and may even increase the cost for consumers. While nonprofit-oriented energy storage performs a positive effect on the system cost reduction. CO2 emission reduction can only be achieved under high VRE scenario for energy storage. Integrating energy storage into the power system may increase CO2 emissions in the near term. In addition, the peak-valley spread is crucial to trigger operations of profit-oriented energy storage, and the profitability of energy storage operator is observed to be decreasing with the total storage capacity.
Originality/value
This study provides new insights for the energy management in the smart city, and the modeling framework can be applied to regions with different resource endowments.
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Keywords
Jing Qi, Catherine Manathunga, Michael Singh and Tracey Bunda
The purpose of this paper is to provide a micro historical account of the work of a key Chinese educational reformer, Tao Xingzhi (1891–1946), who transformed educational ideas…
Abstract
Purpose
The purpose of this paper is to provide a micro historical account of the work of a key Chinese educational reformer, Tao Xingzhi (1891–1946), who transformed educational ideas from John Dewey to effect social and cultural change in 1920s–1940s China.
Design/methodology/approach
This paper examines English and Chinese language sources, including Tao’s poetry, to present a fresh analysis of Tao’s epistemological life history. It draws upon transnational historical approaches to chart the multidirectional circulation of progressive education philosophies around the globe. It also explores some conceptual dimensions of Chinese historical thinking and historiographical strategies.
Findings
Tao Xingzhi engaged in critical intercultural knowledge exchange in implementing educational reforms in China. He blended and critiqued Chinese and Deweyian educational philosophies to create unique educational reform, which involved reversing some of Dewey’s approaches as well as adapting others.
Originality/value
This paper foregrounds Tao Xingzhi’s agency in transforming some of Dewey’s ideas in the Chinese context and challenges studies that adopt an “impact-response” approach to Tao’s contribution, which suggest a one-way flow of knowledge from a “modern” West to a “traditional” China. It brings hitherto unexplored Chinese language sources to an English-speaking audience, particularly Tao’s poetry, to gain new historical insights into Tao’s educational reforms. It contributes to transnational understandings of the multidirectional flows of knowledge about Progressive educational philosophies around the world.
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Keywords
Wei Quan, Bikun Chen and Fei Shu
The purpose of this paper is to present the landscape of the cash-per-publication reward policy in China and reveal its trend since the late 1990s.
Abstract
Purpose
The purpose of this paper is to present the landscape of the cash-per-publication reward policy in China and reveal its trend since the late 1990s.
Design/methodology/approach
This study is based on the analysis of 168 university documents regarding the cash-per-publication reward policy at 100 Chinese universities.
Findings
Chinese universities offer cash rewards from USD30 to USD165,000 for papers published in journals indexed by Web of Science, and the average reward amount has been increasing for the past ten years.
Originality/value
The cash-per-publication reward policy in China has never been systematically studied and investigated before except for in some case studies. This is the first paper that reveals the landscape of the cash-per-publication reward policy in China.
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Keywords
Grzegorz Kopecki and Michal Banicki
Attitude and heading are very important measurements on board aircraft. In modern solutions they are measured by the attitude and heading reference system (AHRS). In some small…
Abstract
Purpose
Attitude and heading are very important measurements on board aircraft. In modern solutions they are measured by the attitude and heading reference system (AHRS). In some small unmanned systems, the GPS track angle is used for heading corrections instead of the magnetometer; then, the system measures the track angle instead of heading. With a temporary lack of correction signals, the measurement error increases very quickly. Similarly, a quick increase in the measurement error is observed when a magnetic heading sensor used for correction stops working properly. This study aims to propose measurement of the roll angle for yaw angle correction.
Design/methodology/approach
AHRS algorithms were designed; typical maneuvers were analyzed. The method was verified by simulation and in flight testing analysis. For quantitative analyses, a performance index was proposed.
Findings
The method enables reduction of the yaw angle error caused by the gyros bias error. This study presents the idea, results of simulations and flight testing data analysis and discusses advantages and limitations of the presented method.
Practical implications
The presented methodology can be implemented in AHRS systems for manned and unmanned aircraft.
Originality/value
This study enables more accurate measurement of the yaw angle in the case of missing correction signals.
Details
Keywords
Lixin Jia, Mujia Shi, Jiantao Shi, Dong Wang, Aiguo Song, ChunYI Su and Lihang Feng
This paper aims to propose a novel wheel-based multiaxis force sensor designed to detect the interaction forces and moments between the planetary rover’s wheel and the terrain…
Abstract
Purpose
This paper aims to propose a novel wheel-based multiaxis force sensor designed to detect the interaction forces and moments between the planetary rover’s wheel and the terrain, thereby assisting the rover in environmental perception.
Design/methodology/approach
The authors’ design approach encompasses the mechanical structure design, decoupling methods and component integration techniques, effectively incorporating multiaxis sensors into the forward-sensing wheel. This enables high-precision and high-reliability detection of wheel–terrain interaction forces and torques.
Findings
The designed wheel-based multiaxis force sensor exhibits a nonlinearity error of 0.45%, a hysteresis error of 0.56% and a repeatability error of 0.49%, meeting the requirements for practical applications. Furthermore, the effectiveness and stability of the designed wheel-based multidimensional force sensor have been validated through hardware-in-the-loop experiments and full-vehicle model testing.
Originality/value
Unlike previous methods that directly integrate multiaxis sensors into the forward-sensing wheel, the authors have designed the force sensing wheel with consideration of its limited design space and the need for high measurement accuracy. The effectiveness of the designed wheel-based multidimensional force sensor was ultimately validated through static calibration, hardware-in-the-loop experiments and full-vehicle model experiments.
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Keywords
Lijun Wan, Jiaqi Qiao and Quansheng Sun
The application of reinforcing old bridges by adding external prestressed steel bundles is becoming more and more widespread. However, the long-term safety performance test of the…
Abstract
Purpose
The application of reinforcing old bridges by adding external prestressed steel bundles is becoming more and more widespread. However, the long-term safety performance test of the strengthening method is rarely carried out. In this paper, the bearing capacity of a 420 m prestressed concrete (PC) continuous girder bridge after five years of strengthening is analyzed.
Design/methodology/approach
The bridge model of the bridge structure and strengthening scheme is established by the finite element software of the bridge. The theoretical load-bearing capacity of the bridge under the latest standard load grade is obtained by finite element analysis. The actual bearing capacity of the bridge is obtained by field test. Through the comparative analysis of theory and practice, the health state of the bridge after five years of reinforced operation is judged. The damage to the overall stiffness and external prestressing of the bridge is also analyzed.
Findings
The results of deflection and strain show that the stiffness and strength of the secondary side span and the middle span decrease slightly, and the maximum reduction of bearing capacity is 4.5%. The static stiffness of the whole bridge decreases as a result of cracks, and the maximum decrease is 21%. In the past five years, the relaxation loss of the external prestressing of the bridge is 3.31–3.97%, which is the main reason for the decrease in bearing capacity.
Originality/value
Through the joint analysis of the bridge stiffness and the loss of external prestressing, the strengthening condition of the bridge after five years of operation is effectively analyzed. The strengthening effect of the external prestressed steel beam strengthening method is analyzed, which can provide a reference for similar bridge strengthening.
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Keywords
Jianyong Liu, Xueke Luo, Long Li, Fangyuan Liu, Chuanyang Qiu, Xinghao Fan, Haoran Dong, Ruobing Li and Jiahao Liu
Utilizing electrical discharge machining (EDM) to process micro-holes in superalloys may lead to the formation of remelting layers and micro-cracks on the machined surface. This…
Abstract
Purpose
Utilizing electrical discharge machining (EDM) to process micro-holes in superalloys may lead to the formation of remelting layers and micro-cracks on the machined surface. This work proposes a method of composite processing of EDM and ultrasonic vibration drilling for machining precision micro-holes in complex positions of superalloys.
Design/methodology/approach
A six-axis computer numerical control (CNC) machine tool was developed, whose software control system adopted a real-time control architecture that integrates electrical discharge and ultrasonic vibration drilling. Among them, the CNC system software was developed based on Windows + RTX architecture, which could process the real-time processing state received by the hardware terminal and adjust the processing state. Based on the SoC (System on Chip) technology, an architecture for a pulse generator was developed. The circuit of the pulse generator was designed and implemented. Additionally, a composite mechanical system was engineered for both drilling and EDM. Two sets of control boards were designed for the hardware terminal. One set was the EDM discharge control board, which detected the discharge state and provided the pulse waveform for turning on the transistor. The other was a relay control card based on STM32, which could meet the switch between EDM and ultrasonic vibration, and used the Modbus protocol to communicate with the machining control software.
Findings
The mechanical structure of the designed composite machine tool can effectively avoid interference between the EDM spindle and the drilling spindle. The removal rate of the remelting layer on 1.5 mm single crystal superalloys after composite processing can reach over 90%. The average processing time per millimeter was 55 s, and the measured inner surface roughness of the hole was less than 1.6 µm, which realized the micro-hole machining without remelting layer, heat affected zone and micro-cracks in the single crystal superalloy.
Originality/value
The test results proved that the key techniques developed in this paper were suite for micro-hole machining of special materials.
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Keywords
The purpose of this study is to test the impact of time and price sensitivity on consumer satisfaction and purchase intention on online-to-offline (O2O) takeout platforms and…
Abstract
Purpose
The purpose of this study is to test the impact of time and price sensitivity on consumer satisfaction and purchase intention on online-to-offline (O2O) takeout platforms and explore the moderating effect of purchase preference on time sensitivity and satisfaction, as well as price sensitivity and satisfaction, in order to guide market pricing.
Design/methodology/approach
A structural equation model (SEM) of customer purchase intention was constructed, and the relationships between the variables (time sensitivity, price sensitivity, satisfaction and purchase intention) were examined. The completed questionnaires of 349 respondents were collected from the Questionnaire Star platform in China. The research model and hypotheses were then tested. Analytic hierarchy procedure was used to determine the moderating effect of purchase preference. Finally, the study proposes a pricing strategy for customer-active selective services.
Findings
Satisfaction positively influences purchase intention, and price sensitivity significantly increases satisfaction and further increases purchase intention; however, time sensitivity negatively affects satisfaction. Specifically, purchase preference has strongly moderated the relationship between time, price sensitivity and satisfaction. In addition, the findings show that when purchase preference is high, the effect of price sensitivity on satisfaction is stronger, suggesting the importance of purchase preference in strengthening purchase intentions. The research work recommends a pricing strategy involving value-added pricing primarily for time-sensitive customers, which can help build a high-end brand image and reduce price competition. Reduced pricing is mainly for price-sensitive customers, which is conducive to stimulating consumption within a specific time. This pricing strategy is important for adjusting market sensitivity and flexibility.
Originality/value
This research provides new ideas for related disciplines and guidance for the differentiated pricing and promotion of takeout platforms, as well as a theoretical basis for the diversified development of takeout platforms, improvement of personalized service quality and enhancement of customer stickiness. This study fills gaps in the existing literature on the moderating effect of purchase preference on time sensitivity and satisfaction and price sensitivity and satisfaction.