34254 research outputs found
Sort by
Nonfamily Employees' Perceptions of Family Employer Brand and Turnover Intention: a Mediation and Moderation Model from the Job Embeddedness Perspective
No full textThe objective of this study is to investigate the impact of nonfamily employees\ue2 perceptions of the family employer brand (FEB), based on the organizational instrumental and symbolic attributes, on turnover intention, and the mediator (i.e., work engagement) and moderator (i.e., work motivation and occupational rank) for this relationship. More specifically this study assesses the evaluation of incumbent nonfamily employees in the family business on the employer brand based on the organizational instrumental and symbolic attributes. In addition, the impact of nonfamily employees\ue2 perceptions of instrumental attributes and symbolic attributes on their turnover intention with the mediating role of work engagement. In addition, the moderating effects of occupational rank and motivation of nonfamily employees in the relationship between their perceptions of instrumental attributes and symbolic attributes on work engagement were tested.
This study used the quantitative research approach with empirical data collected from a survey of target respondents working in family businesses in Vietnam. 209 pairs of nonfamily employees and their direct managers data was collected by structured questionnaires with two raters (nonfamily employees and their direct managers).
The results of the Partial Least Squares-Structural Equation Modeling (PLS-SEM) with SMARTPLS 3.0 found that: (1) nonfamily employees had a relatively positive evaluation on the family business where they are working for; (2) nonfamily employees\ue2 perceptions of instrumental attributes of family business are not correlated to their turnover intention while their perceptions of symbolic attributes are significantly correlated; (3) work engagement fully mediates the relationship between nonfamily employees\ue2 perceptions of instrumental attributes and their turnover intention while partially mediates the relationship between nonfamily employees\ue2 perceptions of symbolic attributes and their turnover intention; (4) the moderating effect of nonfamily employees\ue2 motivation were not supported; (5) the occupational rank moderates the relationship between nonfamily employees\ue2 perceptions and work engagement, such that, the relationship between nonfamily employees\ue2 perceptions instrumental attributes and work engagement stronger for blue-collar workers while the relationship between nonfamily employees\ue2 perceptions of symbolic attributes and work engagement stronger for white-collar workers.
These findings are expected to benefit theoretical and managerial implications for employer brand research as well as managing and retaining the workforce in family businesses
Discussion on the Reform of Dongge Yachting Organization
No full textThe present study is based on the relevant literature of organizational change, adopting a qualitative case study approach. It focuses on Taiwan's first publicly-listed yacht company\ue2Dong Ge Enterprises Co., Ltd. Using interviews and secondary data for corroboration, the study aims to analyze the patterns and strategies of organizational change within Dong Ge Yachts. It also observes the actions of change agents within the organization. Through this investigation, we hope to explore how companies adjust and operate their change strategies and organizational capabilities to improve organizational performance and secure future sustainability.
In order to provide better service to customers and enhance their competitive standing for long-term survival, organizational change is indeed imperative for companies. However, whether the adopted strategies during the change process can effectively integrate with internal personnel, organizational culture, and operations is a significant challenge. This thesis considers the results presented by business performance and adjustments in the internal organizational structure, exploring the critical positive impact of change agents driving organizational transformation
An Empirical Study of Investors\ue2 Disagreement on VIX Options
No full textThis research combines two different proxies that measure investors\ue2 disagree-ment in the option market, Disagreement (Golez and Goyenko, 2022) and IDISP (Andreous et al., 2018) . Based on Miller\ue2s theory, this research uses the trading data of VIX options to conduct the empirical study. The result turns out that IDISP has negative relation to future returns, while Disagreement shows no sign of any rela-tions to future returns. Global Financial Crisis and the date of FOMC meetings also have no relation to future returns due to the regression analysis, and have no impact on the relation of investors\ue2 disagreement and future returns
The Connection between Getting Off Work On Time and Work-Life Balance: The Mediating Role of Psychological Detachment and the Moderating Role of Work-Related Rumination
No full textThere has been increasing attention to the issues of work arrangement and employee well-being in recent years. This includes the blurring of work-life boundaries due to rapid technological advancements, the growing emphasis on work-life balance among the new generation of employees, and a reflection on working hours and work distance limitations in the post-pandemic era. According to the 2023 statistics from the Ministry of Labor Republic of China (Taiwan), within the past year, 42% of workers have engaged in overtime, with an average monthly extension of working hours by 15 hours. Furthermore, over 25% of laborers have received work assignments from their organizations after regular working hours through methods such as phone calls, online platforms, and mobile applications. The average monthly actual working hours have totaled 4.7 hours, marking a 0.1-hour increase compared to the previous year's data. Working hours are key factors in assessing work-life balance, but they may not accurately capture the actual working conditions of individuals. To address this, Hsu & Li (2022) developed the "get off work on time (GOWOT)" scale, which provides a more precise assessment of employees' work conditions by measuring the three subdimensions, including leaving on time, not being assigned tasks through communication devices after work, and not being required to participate in compulsory activities after work.
Building on the border theory and boundary theory, which suggests that people have psychological, physical, and temporal borders that define the strength of their borders between work and life, this study aimed to discover the connection between getting off work on time and work-life balance from a psychological border perspective. Additionally, the effort-recovery theory highlights the significance of recovering from fatigue, stress, and negative effects in the workplace. In line with this, the study assessed the role of psychological detachment, which is a topic of noteworthy attention in work recovery research, as a potential mediator in the connection between getting off work on time and work-life balance. Furthermore, the study acknowledged that organizational policies and climates promoting timely departure from work may not be effective if employees' psychological states are not taken into account. Therefore, this research explored the moderating effect of work-related rumination.
This study discovered that: (1) psychological detachment mediated the correlation between getting off work on time and work-life balance; (2) problem-solving pondering acted as a moderator in the relationship between getting off work on time and psychological detachment such that the relationship was weaker when the extent of problem-solving rumination was higher; however, affective rumination did not have a moderating effect on this relationship
The impact of product nickname on consumers\ue2 product attitude: the mediating effect of psychological ownership
No full textIn the field of marketing, instead of using formal product names, brands often use product nicknames to communicate with consumers. Because product nicknames are short and catchy, product nicknames can let consumers remember products more quickly. Therefore, consumers have gradually used product nicknames when they talk about products, especially in social media use.
The main idea of this article is to study the influence of product nicknames on product attitude and use psychological ownership as the mediator. First, given that nicknames represent a kind of intimacy, this article figures out whether consumers will have a sense of "subjective feelings of ownership", that is, psychological ownership of products when using product nicknames, and then study whether psychological ownership can enhance product attitude. Second, this article adds nickname relevance as the moderator. The key to successfully using product nicknames depends on how relevant the product nickname is to the product. When product nicknames are highly correlated with products\ue2 features, consumers can get to know the product.
The study proved that product nicknames have a positive effect on consumers' product attitudes, and the mediating effect of psychological ownership is also confirmed. When consumers have a sense of psychological ownership, consumers will have a positive attitude toward products. In addition, this study also found that when using product nicknames, consumers' attitude toward products is moderated by the nickname relevance. When a nickname has great relevance to the products, it will enhance the consumer's attitude toward the product, and vice versa
Design of pHEMT class AB power amplifier using load-pull technique to measure 136 impedance X-parameter model and establishment pHEMT two-tone signal behavior model with deep neural network
No full textThis paper is divided into two parts. In the first part, we utilize a design kit provided by WIN semiconductor corporation to design a pseudomorphic high electron mobility transistor. We employ the conventional load-pull technique to measure the X-parameters of the system, aiming to obtain the X-parameter information at the optimum output power load impedance point. This information is then applied in the design of a power amplifier to achieve the best output performance under operating power conditions.
The second part employs a deep neural network to model pseudomorphic high electron mobility transistors. The measurement data obtained from a two-tone signal is utilized. By using the provided biasing and the measured power information as input parameters, the deep neural network is trained to create a behavioral model for pseudomorphic high electron mobility transistors. This model is capable of predicting the two-tone signal for other biasing conditions
Fast fabrication of liquid crystal polarization gratings with a twisted-nematic polarization grating as an achromatic photomask
No full textLiquid crystal Pancharatnam-Berry phase optical elements (LCPBOEs) have drawn great research interests due to their particular features to diffract the impinging light beam and perform various beam shaping properties. Unlike common diffractive optical elements obtaining phase difference using the optical path difference, LCPBOEs are flat optical devices and they acquire phase differences by the space-varying alignment profile in the cross-sectional plane. Thus, LCPBOEs are polarization-dependent elements, which is especially sensitive to the handedness of the circular polarization of the incident light beam. A liquid crystal polarization gratings (LCPGs) is a special kind of LCPBOEs, which is capable of diffracting the light beam with a high diffraction efficiency of greater than 95 % and thus widely used in many applications, especially in near-eye displays. LCPGs have a complex alignment profile in which space-variant LC molecules form a periodic distribution, so an exposure system combining photo-alignment technique is widely used to generate two-dimensional optical axis distribution of linearly polarized light to form a suitable alignment profile of LC molecules. In general, these exposure systems usually involve expensive laser light sources or spatial light modulators, which makes it difficult for cost-effective mass-production of LCPGs. To address this issue, an optically imprinting technique has been proposed for fabrication of high-efficiency LCPGs by introducing a master polarization grating as a photomask. The required optical axis distribution can be easily obtained by irradiating a laser beam into a master polarization grating without any complicated setup; however, the thickness of the master polarization grating needs to be precisely controlled to satisfy the half-wave condition for the wavelength of the writing laser light source.
This thesis mainly proposes an improved optically imprinting technique for fabrication of high-efficiency LCPGs using a polarization grating based on twisted nematic liquid crystals (TNLCs) as an achromatic photo mask. A TNLC operating at Mauguin\ue2s condition a is well-known achromatic linear polarization rotator, and so the TNLC based polarization grating (TNPG) photo mask can be applied to the laser light source with different wavelengths or even broadband light source like LEDs. Herein, three LCPGs with the peak diffraction wavelengths referred to as Red, Green, and Blue through improved optically imprinting technique and they all exhibit high diffraction efficiencies of over 94%. Compared with traditional optically imprinting technique, the improved technique not only keeps all advantages including simple fabrication and the less impact on environmental disturbances through exposure progress but also provides more flexibility for photo-alignment materials and writing light sources. It has a high potential for mass production of LCPGs and even others LCPBOEs
A case study of an organization adopting hot desking in her offices
No full textAn office is a physical space set up by an organization to allow employees to perform administrative and management operations; that is, a place where employees can work, and is usually a workplace for white-collar employees. In recent years, due to the rapid changes in technology and equipment, different office models have emerged one after another. Among them, free office seating means that employees do not have a fixed seat in the office, but choose a seat freely.
This study is a case study of a company that has implemented unrestricted seating in the office. The data is collected from field observations and secondary data, focusing on the reasons for implementation, preparation before implementation, official implementation, subjective and objective effects after implementation, and discuss the organization's process and results in promoting free seating in the office.
Research results: 1. 90% of employees believe that free seating is a plus effect on work; 2. Most employees believe that it can improve cross-departmental and inter-employee communication, interaction and collaboration, but there are still problems with team cohesion and employees' sense of belonging ; 3. Most employees reported that the number of available office equipment is insufficient to meet work needs; 4. Since the free seating plan is implemented on a single floor, it is not yet possible to see the effect of free seating in the office on the company's goals
Exploring the Impact of Perceived Scarcity due to Material Market News on Corporations\ue2 Purchasing Intention
No full textA stable supply chain is what enterprises strive to pursue, but due to the lack of transparency, timeliness, and even openness in information exchange, the imbalance between supply and demand has been caused. As an enterprise starts the material plan, it needs to estimate various figures and indicators: demand quantity, capacity limit, production time, material transportation, etc. There is \ue2lead time\ue2 required for all materials, and the longer it is the more we rely on demand forecast to do preparation. However, it is difficult to do accurate forecasting because of the unknown and uncertain future. Companies can just try their best to read market information, come to a judgment, and make corresponding responses.
Recently, due to COVID-19, there have been many studies on the impact of perceived scarcity on consumer purchasing behavior, but less focus on corporate procurement. By applying the chain multiple intermediary model, this study explores whether raw material market information will trigger companies' perception of resource shortages and further affect their purchasing intentions. Research result shows (1) For corporations, Perceived Scarcity will have a positive impact on their reactions to Fear Appeal, change their Procurement Strategy, and cause Over-booking. (2) Corporations\ue2 response to Fear Appeals will positively affect their Procurement Strategies. (3) The company's Procurement Strategy will positively affect Over-booking behavior, and will also have a mediating effect between Perceived Scarcity and Over-booking behavior. (4) Fear appeals and procurement strategies have a mediating effect between corporate perceived lack and excessive procurement behavior.
Through this research, I hope it can help us to understand how companies respond to raw material shortage messages in the market, explore companies' perceptions of raw material shortages, and how to deal with such situations by adjusting procurement strategies
Formation of haloacetamide during chlorination of acetaminophen and the electrical sensing and electrochemical treatment technology using graphene oxide-containing composites.
No full textThe presence of pharmaceutical contaminants in water is an increasingly serious challenge to both the environment and human health. Acetaminophen (Apap), a common pain reliever and fever reducer, is the second most used pharmaceutical in Taiwan. After being ingested by humans or animals, Apap is often excreted unchanged in the urine, leading to its widespread detection in natural water bodies around the world. Water treatment systems disinfect water to ensure public health and safe drinking water. However, pharmaceutical contaminants in water can lead to the formation of disinfection byproducts (DBPs) with higher carcinogenic potentials, such as Haloacetamide (HAcAm), an emerging class of nitrogenous DBPs. Compared to regulated carbonaceous DBPs, HAcAms exhibit higher cytotoxicity and genotoxicity but are not adequately regulated.
Considering the formation of HAcAm during disinfection of the widely used Apap, this study selected these two compounds as the target compounds. The first objective was to investigate the effects of co-existing metformin, the most used pharmaceutical in Taiwan, and ammonium as well as different chlorination methods on HAcAm formation from Apap. The influences of the presence of the individual pharmaceutical and the coexistence of pharmaceuticals or ammonium were studied. Pharmaceutical contaminants in traditional water treatment units are not effectively removed. The second objective was to synthesize a magnetic composite (GO@Fe3O4) by incorporating graphene oxide and iron oxide. Graphene oxide (GO) is a two-dimensional structural carbon material with a high specific surface area and abundant functional groups modifiable. Following modification, GO demonstrates exceptional electrochemical and catalytic oxidation properties, rendering it highly suitable for pollutant removal and electrochemical applications. GO@Fe3O4 served as both an adsorbent, removing Apap from water, and a catalyst for various advanced oxidation technologies, including Fenton-like reactions, electrooxidation, and electro-Fenton processes that degraded Apap through the generation of highly reactive radicals. In the third objective, GO@Fe3O4's excellent electrochemical properties enabled rapid and large-scale detection and analysis of Apap when combined with a method of electrochemical sensing, effectively overcoming the high costs and time-consuming aspects of traditional chromatographic analysis.
In the first part of the study, the results revealed that dichloroacetamide (DCAcAm) was the dominant species formed in all experimental batches. When Apap was present alone, chlorination demonstrated a higher potential for HAcAm formation from Apap, while two-step chlorination reduced the HAcAm formation during chlorination by 4.27 E-06~4.09E-05 g/g-h, whereas the formation with chloramine that has a lower oxidation potential was limitedly affected. In scenarios where pharmaceuticals coexisted and two-step chlorination was applied or a higher chlorine dose was used during chlorination, there was a synergistic increase in DAcAm formation, with yield increases of 244% and 228%, respectively. Inorganic nitrogen sources, together with Apap, also enhanced HAcAm formation during chlor(am)ination. The addition of extra nitrogen sources whether from pharmaceuticals or inorganic nitrogen, led to higher concentrations of HAcAms. Moreover, nitrogen-containing pharmaceuticals released inorganic nitrogen during chlor(am)ination., which gradually transformed into NO3-, emphasizing the crucial importance of removing pharmaceuticals before water treatment and disinfection for water quality preservation.
In the second part of the study, results indicated that varying the iron contents in the composite had an impact on the Apap adsorption, with the most superior performance observed when the mass ratio of Fe3+ to GO was 2.5 (S2.5). The pKa value of Apap is 9.38. When the pH exceeds 9.38, Apap's surface becomes negatively charged, leading to repulsion with the negatively charged surface of GO@Fe3O4. This resulted in reduced adsorption of Apap. Through correlation coefficient analysis of the characteristics of the materials and adsorption efficiency, it was found that the adsorption efficiency of Apap was mainly influenced by the specific surface area of GO@ Fe3O4. GO@Fe3O4 efficiently generated \ue2\ua2OH by catalytically decomposing H2O2 over a wide pH range of 4 to 10. GO@Fe3O4 combined with H2O2 and electrooxidation demonstrated synergistic Apap removal capabilities. At a low current density of 5 mA/cm2, the reaction rate was 0.0163 min-1, enabling complete Apap removal within 4 hours. The combination showed high removal efficiency and stability in the presence of nitrogen sources, and it effectively reduced haloacetamide formation by 37 % to 115 % during subsequent chlorination.
In the last part of the study, the preparation of the electro-sensor using GO@ Fe3O4 (GCE S2.5) involved dispersing and coating GO@Fe3O4 uniformly onto the glassy carbon electrode (GCE) surface through ultrasonic oscillation. Cyclic voltammetry was employed to analyze the electrochemical features of the GCE S2.5, elucidate Apap's electrochemical response, determine the electrochemical effective area (AECSA), and investigate the underlying redox mechanism. GCE S2.5 showed a substantial 8-fold increase in effective surface area compared to the bare GCE. In the redox reaction, Fe(II) and two Apap molecules formed complexes, facilitating catalytic oxidation, and generating a current response. The differential pulse voltammetry analysis of trace Apap showed a high recovery rate of 97.2 % and a low detection limit of 0.63 \uc2\ub5M.
Overall, this study investigated the mechanisms and influencing factors of HAcAm formation during disinfection of Apap only or in co-existing with excess nitrogen sources. It also elucidated the impact of ammonium on HAcAm formation during chlorination of Apap. By utilizing GO with iron oxide and employing electrooxidation and electrochemical sensing techniques, effective methods for Apap removal and the suppression of HAcAm formation were proposed, along with a novel rapid to electrochemically detect the presence of Apap in water