8 research outputs found
Quality of Life of Person with Schizophrenia: Patient’s and Caregiver’s Perspectives
No full textThis qualitative study explored the meaning and components of quality of life based on patients' and their family caregivers' perspectives
Quality of Life of Person with Schizophrenia: Patient’s and Caregiver’s Perspectives
No full textThis qualitative study explored the meaning and components of quality of life based on patients' and their family caregivers' perspectives
Factors associated with psychological distress, fear, and coping strategies during the COVID-19 pandemic in Thailand : a cross-sectional study
No full textIntroduction: Despite being initially perceived as a local infectious disease, COVID-19 has emerged as one of the most perilous global health threats, significantly impacting the psychological well-being of individuals worldwide. Objective: This cross-sectional descriptive study investigates the psychological distress, fear, and coping mechanisms among Thai people residing in Thailand during the COVID-19 pandemic. Methods: This online cross-sectional survey targeted Thai individuals during the first and third waves of the COVID-19 pandemic. Participants aged 18 and above who provided consent self-reported their responses to the Kessler Psychological Distress Scale, Fear of COVID-19 Scale, and Brief Resilient Coping Scale. Data collection occurred between November 2020 and January 2021 across four regions of Thailand. Univariate and multivariate logistic regression analyses explored associations between contextual factors and the variables of interest. Results: Out of 498 survey respondents, with an average age of 43.07 (SD = 13.69) years, 81.9% were female, and 61.6% self-identified as healthcare workers, with 47.59% identified as frontline healthcare workers. Findings revealed that 46% of participants experienced moderate-to-very high levels of psychological distress, 14.3% reported high levels of fear of COVID-19, and 35.1% exhibited low resilient coping. Factors such as changes in employment status or financial situations, comorbidities, contact with known or suspected COVID-19 cases, recent healthcare utilization for COVID-19-related stress, and elevated fear of COVID-19 were associated with higher levels of psychological distress. Conversely, being nurses and perceived better mental health status were linked to more effective coping strategies. Conclusion: These results emphasize the critical importance of government interventions to safeguard the psychological well-being of healthcare workers and the broader Thai population. Urgent measures to bolster resilience among these groups during and after the pandemic are imperative. © The Author(s) 2024
Optimal placement of sensor and actuator for sound-structure interaction system
No full textThis thesis presents the practical and novel work in the area of optimal placement of actuators and sensors for sound-structure interaction systems. The work has been done by the author during his PhD candidature. The research is concentrated in systems with non-ideal boundary conditions as in the case in practical engineering applications. An experimental acoustic cavity with five walls of timber and a thin aluminium sheet fixed tightly on the cavity mouth is chosen in this thesis as a good representation of general sound-structure interaction systems. The sheet is intentionally so fixed that it does not satisfy ideal boundary conditions. The existing methods for obtaining optimal sensor-actuator location using analytic models with ideal boundary conditions are of limited use for such problem with non-ideal boundary conditions. The method presented in this thesis for optimal placement of actuators and sensors is motivated by energy based approach and model uncertainty inclusion. The optimal placement of actuator and sensor for the experimental acoustic cavity is used to construct a robust feedback controller based on minimax LQG control design method. The controller is aimed to reduce acoustic potential energy in the cavity. This energy is due to the structure-borne sound inside the sound-structure interaction system. Practical aspects of the method for optimal placement of actuator and sensors are highlighted by experimental vibration and acoustic noise attenuation for arbitrary disturbance using feedback controllers with optimal placement of actuator and sensor. The disturbance is experimentally set to enter the system via a spatial location different from the controller input as would be in any practical applications of standard feedback disturbance rejections. Experimental
demonstration of the novel methods presented in this thesis attenuate
structural vibration up to 13 dB and acoustic noise up to 5 dB for broadband frequency range of interest. This attenuation is achieved without the explicit knowledge of the model of the disturbance
Editorial
No full textSirichai Preudhikulpradab, Ph.D. Program Director, Master of Management (Organization Development), Assumption University, Bangkok, Thailand The current issue of the ABAC ODI Journal. Vision.Action.Outcome comprises seven articles involving ten authors. The contributing authors represent local and international scholars, university’s faculty member, researcher, educator, organization practitioner, and graduate students as follows: Farzin Hassanzadeh Kalashami - Australia Chen Lin - China Orisa Chumphong - Thailand Suwit Srimai - Thailand Wisanupong Potipiroon - Thailand Sumontha Tonvongval - Thailand Chamaiporn Tantivong - Thailand Xiaowei Deng - China John Paul - Myanmar Yijun Luo - China The first article is qualitative research, titled “A Proposed Improvement Plan on Competencies and Skills Using Generative Analysis Approach: A Case of the Staff of the Office of Graduate Studies, Assumption University of Thailand” by Farzin Hassanzadeh Kalashami. The article focuses on five variables, which are human resource, competency, skill, communication, and problem-solving. The author employs the in-depth interview method to explore collective insights of the key informants to propose an improvement plan for long-term organization development. The second article is quantitative research, titled “The Effect of Inclusive Leadership on Employee Well-Being: A Case of XYZ Bank in Yunnan, China” by Chen Lin. The article focuses on six variables, which are inclusive leadership, equal treatment, employee participation, respect for the employee, value recognition, and employee well-being. The author employs descriptive statistics and multiple linear regression to determine the effects of the independent variables on the dependent variables. The third article is an exploratory study, titled, “The Resource-Based View, Dynamic Capabilities and SME Performance for SMEs to Become Smart Enterprises” by Orisa Chumphong, Suwit Srimai, and Wisanupong Potipiroon. The authors focus on four variables, consisting of the resource-based view, dynamic capabilities, strategy, small and medium-sized enterprises. This article presents several implications for the development of SMEs and strategies for competitiveness based on the concept of the resource-based view (RBV). The fourth article is an empirical research, titled, “Findings of Main Obstacles Facing Thai SMEs towards Business Growth Sustainability” by Sumontha Tonvongval, and Chamaiporn Tantivong. The article focuses on five variables, which are Thai SMEs, growth, performance, entrepreneurial competencies, and sustainability. The authors employ the meta-analysis method to explore key implications to the growth of Thai SME’s, utilizing the actual cases of 2027-2019 consultation projects, involving 34 SME’s manufactures in Thailand The fifth article is quantitative research, titled “Determining the Influence of Motivation and Job Satisfaction towards Job Performance of Generation Y+Z Employees of The RARE Company, China” by Xiaowei Deng. The article focuses on three variables, which are job satisfaction, motivation, and job performance. The author employs descriptive statistics and one-way ANOVA to determine the influence of motivation on job satisfaction and job satisfaction on job performance, respectively. The sixth article is an needs assessment , titled “Identifying the Factors to Enhance Training Effectiveness: A Case Study of KNGY Teacher Volunteers, Myanmar” by John Paul. The article focuses on six variables, which are training effectiveness, training needs assessment, training contents, self- efficacy, supervisory support, and transfer of knowledge. The author employs descriptive statistics and correlations. The seventh article is a needs assessment, using the survey and interview, titled “Assessing Employees’ Belongingness for Long-Term Sustainability of the Company: A Case of G Company, Bangkok, Thailand by Yijun Luo. The article focuses on five variables, which are compensation & benefits, company culture, professional training, career development, and employee’s belongingness. The author employs descriptive statistics and correlation to determine the strategies for enhancing employee’s belongingness. In summary, together with its contributing authors who have shared their interdisciplinary knowledge and experience from their respective fields with our Organization development community, we hope that these seventh articles provide the readers with some useful information, findings and implications, and applications to support your future works further.
COVID-19: Factors associated with psychological distress, fear, and coping strategies among community members across 17 countries
No full textAbstract Background The current pandemic of COVID-19 impacted the psychological wellbeing of populations globally. Objectives We aimed to examine the extent and identify factors associated with psychological distress, fear of COVID-19 and coping. Methods We conducted a cross-sectional study across 17 countries during Jun-2020 to Jan-2021. Levels of psychological distress (Kessler Psychological Distress Scale), fear of COVID-19 (Fear of COVID-19 Scale), and coping (Brief Resilient Coping Scale) were assessed. Results A total of 8,559 people participated; mean age (±SD) was 33(±13) years, 64% were females and 40% self-identified as frontline workers. More than two-thirds (69%) experienced moderate-to-very high levels of psychological distress, which was 46% in Thailand and 91% in Egypt. A quarter (24%) had high levels of fear of COVID-19, which was as low as 9% in Libya and as high as 38% in Bangladesh. More than half (57%) exhibited medium to high resilient coping; the lowest prevalence (3%) was reported in Australia and the highest (72%) in Syria. Being female (AOR 1.31 [95% CIs 1.09-1.57]), perceived distress due to change of employment status (1.56 [1.29-1.90]), comorbidity with mental health conditions (3.02 [1.20-7.60]) were associated with higher levels of psychological distress and fear. Doctors had higher psychological distress (1.43 [1.04-1.97]), but low levels of fear of COVID-19 (0.55 [0.41-0.76]); nurses had medium to high resilient coping (1.30 [1.03-1.65]). Conclusions The extent of psychological distress, fear of COVID-19 and coping varied by country; however, we identified few higher risk groups who were more vulnerable than others. There is an urgent need to prioritise health and well-being of those people through well-designed intervention that may need to be tailored to meet country specific requirements
Additional file 1 of COVID-19: Factors associated with psychological distress, fear, and coping strategies among community members across 17 countries
No full textAdditional file 1: Table S1. Levels of psychological distress among the study participants (based on K-10 scoring). Table S2. Levels of fear of COVID-19 among the study participants (based on the FCV-19S scoring). Table S3. Coping during COVID-19 pandemic among the study participants
Magnetic control of a molecular quantum dot system immersed in a photonic molecule.
No full textilustraciones (principalmente a color), diagramasEn este trabajo se estudia el efecto de un campo magnético externo sobre los observables en estado estacionario de algunos sistemas de microcavidades y puntos cuánticos que revisten diferentes órdenes de complejidad a nivel estructural y teórico en tanto su arquitectura física cambia al considerar y disponer diferentes componentes en distintas configuraciones. Inicialmente, se considera un punto cuántico multiexcitónico embebido en una cavidad óptica bimodal como una primera aproximación a la idea molecular en cuanto a la posibilidad de más de una excitación material en un emisor cuántico. Se continúa considerando un par de puntos cuánticos que acorde a su distribución espacial lateral o vertical constituyen una molécula tanto mediante interacciones de transferencia de energía de resonancia como mediante interacciones de tunelamiento de portadores de carga correspondiente, los cuales también se encuentran dispuestos en una cavidad óptica. Finalmente, dichos sistemas moleculares de materia se consideran embebidos en una configuración de microcavidades que aportan el componente molecular fotónico.
Se construyen los modelos teóricos que definen cada uno de los sistemas de interés para posteriormente realizar un análisis hamiltoniano detallado de las relaciones de dispersión y composiciones fraccionales de los estados. Se prosigue con un análisis disipativo que incorpora los principales mecanismos decoherentes mediante el formalismo de la ecuación maestra a partir del cual se obtienen y analizan observables como las ocupaciones de los estados y funciones de correlación de segundo orden sin retraso. Todo lo anterior en función de la intensidad y el ángulo de inclinación del campo magnético externo aplicado. Se encuentra que las relaciones de dispersión de energía revelan la presencia de anti cruces como una firma de acoplamiento entre los diferentes componentes de los sistemas considerados. Además, se muestra que mediante la variación del ángulo de inclinación y la intensidad del campo magnético, se pueden manipular las dinámicas de ocupaciones en estado estacionario de los diferentes sistemas contemplados, con lo que se identificó regímenes de parámetros que propician la generación de estados biexcitónicos, moleculares excitónicos y fotónicos simples hasta estados híbridos moleculares de materia y de radiación de forma controlada en los diferentes sistemas estudiados (Texto tomado de la fuente).In this study, we investigate the impact of an external magnetic field on the steady-state observables of systems with varying levels of complexity, as their physical architecture chanx ges due to the arrangement of different components. Initially, we examine a multi-excitonic quantum dot embedded in a bimodal optical cavity, representing a preliminary approximation to the concept of multiple material excitations in a quantum emitter. Subsequently, we explore a pair of quantum dots forming a molecular structure through resonance energy transfer interactions and charge carrier tunneling interactions. These dots are also situated within an optical cavity. Finally, we consider these molecular systems embedded within a configuration of micro-cavities that contribute to the photonic molecular component. The theoretical models defining each of these systems of interest are developed to conduct a comprehensive Hamiltonian analysis of dispersion relations and fractional composition states. Subsequently, a dissipative analysis is performed, incorporating key decoherence mechanisms using the master equation formalism. This analysis yields observables such as state occupancies and second-order correlation functions without delay. All these results are studied in relation to the strength and tilt angle of the applied external magnetic field. Our findings reveal that energy dispersion relations exhibit anti-crossing as a signature of coupling between the various components within the considered systems. Furthermore, we demonstrate that adjusting the tilt angle and magnetic field intensity allows manipulation of the steady-state occupancy dynamics of the systems under consideration. This identification of parameter regimes supports the generation of biexcitonic states, excitonic and photonic molecular states, and even hybrid molecular states of matter and radiation. Importantly, these manipulations can be controlled across the diverse systems studied.DoctoradoDoctor en Ciencias - FísicaElectrodinámica cuántica de cavidade
