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The world currency is endowed with two inherent contradictions, namely, the general contradiction of all currencies and the special contradiction between the quality and quantity of the world currency. The paper aims to discuss these issues.

In the wake of the Second World War, the USA, with its strong economic and military strength, established an international monetary system centered on the US dollar (USD). This gave USD the status of “world currency” and bounded it to the US imperialist hegemony with mutual integration and interaction, making it possible for USD capital to conduct international exploitation and wealth plundering extensively around the world.

The contradiction between the capital logic and the power logic, which is inherent in capital accumulation models of the new imperialism, also indicates the inevitable decline of USD.

This constitutes an important feature of the new imperialism. However, as a sovereign currency, USD has inextricable and inherent contradictions while exercising its function as the world currency.

Bionic flapping-wing aerial vehicles (FWAVs) mimic natural flyers to generate the lift and thrust, such as birds, bats and insects. As an important component of the FWAVs, the flapping wings are crucial for the flight performance. The aim of this paper is to study the effects of different wings on aerodynamic performance.

Inspired by the wings structure of birds, the authors design four cambered wings to analyze the effect of airfoils on the FWAVs aerodynamic performance. The authors design the motor-driven mechanism of flapping wings, and realize the control of flapping frequency. Combined with the wind tunnel equipment, the authors build the FWAVs force test platform to test the static and dynamic aerodynamic performance of different flapping wings under the state variables of flapping frequency, wind speed and inclined angle.

The results show that the aerodynamic performance of flapping wing with a camber of 20 mm is the best. Compared with flat wing, the average lift can be improved by 59.5%.

Different from the traditional flat wing design of FWAVs, different cambered flapping wings are given in this paper. The influence of airfoils on aerodynamic performance of FWAVs is analyzed and the optimal flapping wing is obtained.

The present study is descriptive research in terms of purpose, descriptive analysis in terms of nature and cross-sectional research in terms of time. The study’s statistical population includes all employees and managers of the China City Organization selected as sample members using random sampling method and Krejcie table of 242 people. The questionnaire was modified and revised based on the goals, tasks and mission of the target organization to collect information. In data analysis, due to the normality of data distribution, the structural equation modeling method is used to evaluate the causal model, reliability and validity of the measurement model. Evaluation and validation of the model are done through the structural equation model. Questionnaire-based model and data are analyzed using Smart PLS 3.0. The main purpose of this study is to assess the feasibility of implementing the human resource payroll management system based on cloud computing technology.

New technologies require innovative approaches for creating valuable opportunities in an organization to integrate the physical flows of goods and services and financial information. Today, cloud computing is an emerging mechanism for high-level computing as a storage system. It is used to connect to network hosts, infrastructure and applications and provide reliable services. Due to advances in this field, cloud computing is used to perform operations related to human resources. The role, importance and application of cloud computing in human resource management, such as reducing the cost of hardware and information software in hiring, job planning, employee selection, employee socialization, payroll, employee performance appraisal, rewards, etc., is raised. This way, human resource management teams can easily view resumes, sort candidates and observe and analyze their performance. Cloud computing is effective in implementing human resource payroll management systems. Therefore, the primary purpose of this study is to assess the feasibility of implementing the human resource payroll management system based on cloud computing technology.

Testing the research hypotheses shows that the dimension desirability of ability and acceptance is provided in dimensions related to the minimum conditions required to implement cloud computing technology in the organization. For this reason, the feasibility of implementing the systems based on cloud computing in companies must be considered.

This study also has some limitations that need to be considered in evaluating the results. The study is limited to one region. It cannot be assured that the factors examined in other areas are effective. The research design for this study is a cross-sectional study. It represents the static relationship between the variables. Since cross-sectional data from variable relationships are taken at a single point in time, they are collected in other periods. As a proposal, future researchers intend to investigate the impact of Enterprise Resource Planning (ERP) systems based on cloud computing.

The research also includes companies, departments and individuals associated with systems based on cloud computing.

In this paper, the feasibility of implementing the human resource payroll management system based on cloud computing is pointed out, and the approach to resolve the problem is applied to a practical example. The presented model in this article provides a complete framework to investigate the feasibility of implementing the human resource payroll management system based on cloud computing.

The purpose of this paper is to investigate the cultural assimilation influence on family purchase decision making of Chinese immigrant families in New Zealand, and in Chinese families living in China.

The data were collected from 200 respondents. In total, 100 families have been chosen from each of these countries. The data were collected by the snowball sampling method across 11 different products and four decision-making stages.

The results of this research show that cultural assimilation does have an influence on parental perceptions of teen's influence on family decision making. Chinese immigrants' teenage children in New Zealand were perceived as having more influence within the family than their peers in Chinese families living in China.

The research used a sample size of only 100 respondents from each country. Furthermore, it used snowball sampling and mid-income group families only.

These findings help marketers to gain a better understanding of the influence of cultural assimilation, and use specific marketing communication and promotion strategies.

The paper empirically demonstrates that Chinese parents living in China and Chinese immigrant parents living in New Zealand perceive their children's involvement in family purchase decision differently. Chinese immigrant parents perceive that their children are becoming assimilated with New Zealand culture. This is the first ever study done on Chinese Immigrant families living in New Zealand and Chinese families living in China by collecting and using the cross-culture data from New Zealand and China.

One hundred and seventy‐eight heroin addicts in reformatory school were sent to one of two rehabilitation treatments: reform through education and labour and therapeutic community (TC)‐based rehabilitation programme. After six months of being discharged, pre‐ and post‐treatment scores on the Addiction Severity Index were compared, and relapse related factors were investigated. Results indicated improvements in both treatments, with the TC‐based rehabilitation programme showing superior improvement overall. Results support the efficacy of the TC‐based rehabilitation programme proving it to be better than reform through labour and education. It is suggested that psychosocial intervention and relapse prevention should be emphasised in the treatment of drug dependence.

This study aims to use multi-functional viscose fabric that was facilely developed with with respect to ease and care characteristics, reinforcement effect and antibacterial activity by using novel echo friendly antibacterial finish based on citric acid/sodium hypophosphite and the authors’ previously tailor-made poly meth acrylic acid (MAA)-chitosan graft copolymer via alternative microwave curing approach instead of traditional high-temperature cure one.

Viscose fabric was paddled twice in the cross-linking formulations containing different concentrations of citric acid, poly (MAA)-chitosan graft copolymer and sodium hypophosphite to 90 % wet pick up and dried at 100°C for 3 min in an electric oven. Then, the treated fabrics were placed on the disk spinner of the microwave oven and cured at different power (100–800 Watt) for various durations (60–180 s). The fabric was then water-rinsed and dried at ambient condition before use.

Results revealed that the above echo friendly method for finished viscose fabrics was found to achieve relatively high dry wrinkle recovery angle and maintain the loss in tensile strength within the acceptable range, as well as antibacterial activity against Escherichia coli and Staphylococcus aureus as a gram-negative and gram-positive bacteria, respectively; in addition to durability up to ten washing cycles. Furthermore, scanning electron microscope images, nitrogen content and add on % of the finished fabric confirmed the penetration of grafted chitosan inside the fabric structure. The tentative mechanism for these reactions is advocated.

The novelty addressed here is undertaken with the advantages of using citric acid as a nonformaldehyde, safe and cheap poly carboxylic acid as a crosslinking agent and sodium hypophosphite as a potential catalyst, in addition to the authors’ noncitable multifunctional echo friendly tailor-made poly (MAA)-chitosan graft copolymer for imparting reinforcement and antibacterial characteristics to viscose fabric that uses the pad-dry/cure microwave fixation for progressively persuaded heat within the fabric during curing.

This was done to see the impact of microwave as green and efficient tool with respect to reduction in organic solvents, chemicals and exposer time as well as fixation temperature on the finishing reaction in comparison with traditional pad-dry-cure method.

Poly (MAA)-chitosan graft copolymer as amphoteric biopolymer was expected to impart multifunctional properties to viscose fabrics especially with comparable dry wrinkle recovery angle and minimize the loss in tensile strength in addition to antibacterial properties in comparison with untreated one.

This study aims to use social network analysis to (1) investigate public opinions on social media regarding apparel supply chain transparency and (2) identify key themes and the major communities discussing apparel supply chain transparency.

Data mining-based social network analysis was used to investigate the pattern of discussions regarding apparel supply chain transparency on Twitter and Instagram.

Both Instagram and Twitter networks exhibited high interest in environmental, working condition and community support in apparel supply chain as explained by the moral responsibility framework of corporate sustainability despite the intended theme of the campaign to promote transparency in terms of working conditions specifically. However, some inconsistencies were found regarding the importance of these communities in the network, suggesting that while survey methods hold significance in measuring user intension, the reaction-based user-generated data on social media can be useful to measure users' true behavior. Also, while Twitter network was dominated by knowledge-based messages, the Instagram network had emotion-driven messages.

By conducting this study, the authors will not only contribute to the existing literature of social media usage in the apparel industry but will also provide a foundation for the use of social network analysis to analyze user-generated data on social media, as this method is fairly new in the textile and apparel industry-related research. The authors also wish to help businesses and policy makers identify specific actionable areas where they are lagging and hence further improve their overall performance.

Workplace bullying is a common negative event suffered by employees in the workplace. The harm it brings to the organization has become the focus of the field of organizational behavior. The purpose of this study was to explore whether workplace bullying has an impact on employee knowledge hiding and to discover the underlying mechanism between the two.

Based on the conservation of resource theory and the cognitive-affective personality system theory, this paper surveys 327R&D employees of Chinese technological corporations at two time points and explores the relationship between workplace bullying and knowledge hiding as well as the underlying mechanism. This study used confirmatory factor analysis, bootstrapping method and structural equation model to validate the research hypothesis.

The results show that workplace bullying positively correlates with knowledge hiding; emotional exhaustion and organizational identification play a mediation role between workplace bullying and knowledge hiding, and both variables play a chain mediation role in that relationship; and forgiveness climate moderates the positive impact of workplace bullying on emotional exhaustion, further moderating the chain mediation role of emotional exhaustion and organizational identification.

The findings of this study can not only complement the existing researches on the influence of negative workplace events on employees’ knowledge hiding behaviors but also strengthen scholars’ attention and understanding of the internal mechanism between workplace bullying and knowledge hiding.