Search results

This study aims to study the distribution characteristics of antibiotic resistance in direct-eating food and analysis of Citrobacter freundii genome and pathogenicity. Residual antibiotics and antibiotic resistance genes (ARGs) in the environment severely threaten human health and the ecological environment. The diseases caused by foodborne pathogenic bacteria are increasing daily, and the enhancement of antibiotic resistance of pathogenic bacteria poses many difficulties in the treatment of disease.

In this study, six fresh fruits and vegetable samples were selected for isolation and identification of culturable bacteria and analysis of antibiotic resistance. The whole genome of Citrobacter freundii isolated from cucumber was sequenced and analyzed by Oxford Nanopore sequencing.

The results show that 270 strains of bacteria were identified in 6 samples. From 12 samples of direct food, 2 kinds of probiotics and 10 kinds of opportunistic pathogens were screened. The proportion of Citrobacter freundii screened from cucumber was significantly higher than that from other samples, and it showed resistance to a variety of antibiotics. Whole genome sequencing showed that Citrobacter freundii was composed of a circular chromosome containing signal peptides, transmembrane proteins and transporters that could induce antibiotic efflux, indicating that Citrobacter freundii had strong adaptability to the environment. The detection of genes encoding carbohydrate active enzymes is more beneficial to the growth and reproduction of Citrobacter freundii in crops. A total of 29 kinds of ARGs were detected in Citrobacter freundii, mainly conferring resistance to fluoroquinolones, aminoglycosides, carbapenem, cephalosporins and macrolides. The main mechanisms are the change in antibiotic targets and efflux pumps, the change in cell permeability and the inactivation of antibiotics and the detection of virulence factors and ARGs, further indicating the serious risk to human health.

The detection of genomic islands and prophages increases the risk of horizontal transfer of virulence factors and ARGs, which spreads the drug resistance of bacteria and pathogenic bacteria more widely.

Purpose – The purpose of this study was to explore Chinese consumers’ motivations for purchasing luxury products, and to unravel the interrelationships among individual differences, motives, and luxury consumption.

Methodology – Data were collected from general consumers living in a large cosmopolitan city of China. A total of 473 questionnaires provided usable data and were analyzed using SPSS.

Findings – Eight motives were identified: self-actualization, product quality, social comparison, others’ influence, investment for future, gifting, special occasions, and emotional purchasing. Results showed that personal income, age, the motives of gifting, others’ influence, and product quality were significant predictors of luxury spending. Younger consumers, who did not typically make plans before buying, were more likely to buy luxury products out of emotion and less likely to do so for self-actualization or future investment.

Research limitations – The conceptualization and operationalization of some concepts used in this study (e.g., luxury brands, luxury consumption, and motives) may not be robust. Social desirability bias could comprise the validity of some research findings.

Originality – Despite a large body of research on luxury consumption, to date, most studies have been conducted in Western developed countries. Past research has showed that the symbolic and social values related to luxury consumption are deeply embedded in culture. As such, it is meaningful to investigate luxury consumption in China, whose culture is vastly different from the West.

The purpose of this paper is to investigate online advertising across different cultures such as Romania and the USA. In the meantime, this paper attempts to examine the relationships among beliefs about online advertising, attitudes toward online advertising (ATOA), and consumer responses to online advertising.

Surveys are conducted among 577 internet users from both Romania and the USA structural equation modeling was used to examine the relationships among variables.

Belief factors (i.e. information seeking, entertainment, economy, credibility, and value corruption) are statistically significant predictors of ATOA; ATOA is a significant predictor of consumer responses to online advertising; as compared to Americans, Romanians tended to hold a more positive ATOA and are more likely to click advertisements, whereas Americans are more likely to buy online than do Romanians.

Convenient sampling technique and the operationalization of culture are main limitations associated with the paper.

Findings may help businesses and organizations employ online advertising more effectively and efficiently in their global marketing endeavors.

Currently little is known about online advertising in developing countries, particularly eastern European countries such as Romania. The current paper extends research on ATOA to a cross‐cultural context.

The purpose of this paper is to investigate beliefs about and attitudes toward online advertising (ATOA) among Chinese consumers and the relationship between belief factors, ATOA, and consumers' behavioral responses to online advertising.

Data were collected from students of a large metropolitan university in China. A total of 202 questionnaires provided usable data and were analyzed using AMOS.

Five belief factors that underlie Chinese consumers' ATOA were identified: entertainment, information seeking, credibility, economy, and value corruption. Information seeking, economy and value corruption were significant predictors of ATOA. ATOA was found to be a significant positive predictor of ad clicking and online shopping frequency.

Global marketers would benefit from understanding how consumers from a booming emerging market perceive the internet as a source of advertising. Thus, the study will enable businesses and organizations to use online advertising more effectively and efficiently in their global marketing efforts.

Investigating Chinese ATOA extends current research on ATOA to a distinctly different cultural context and may provide useful implications about expanding business across cultures.

At present, smartphones are embedded with accelerometers, gyroscopes, magnetometers and WiFi sensors. Most researchers have delved into the use of these sensors for localization. However, there are still many problems in reducing fingerprint mismatching and fusing these positioning data. The purpose of this paper is to improve positioning accuracy by reducing fingerprint mismatching and designing a weighted fusion algorithm.

For the problem of magnetic mismatching caused by singularity fingerprint, derivative Euclidean distance uses adjacent fingerprints to eliminate the influence of singularity fingerprint. To improve the positioning accuracy and robustness of the indoor navigation system, a weighted extended Kalman filter uses a weighted factor to fuse multisensor data.

The scenes of the teaching building, study room and office building are selected to collect data to test the algorithm’s performance. Experiments show that the average positioning accuracies of the teaching building, study room and office building are 1.41 m, 1.17 m, and 1.77 m, respectively.

The algorithm proposed in this paper effectively reduces fingerprint mismatching and improve positioning accuracy by adding a weighted factor. It provides a feasible solution for indoor positioning.

Knowledge often is the fundament for strategic competitive advantage. Thus, it is highly relevant to understand better how knowledge is transferred from one generation to the next in family businesses. The purpose of this paper is to link the competitive advantage realisation in family businesses to the success of transferring strategically valuable knowledge in different business environments to the next generation.

Building on the contingency model of family business succession (Royer et al., 2008) knowledge transfer in family businesses from different cultures is investigated in this paper. From a resource-oriented and transaction cost inspired perspective two family businesses with a similar industry background from China and Europe are compared regarding knowledge transfer in the context of family firm succession taking into account the respective transaction atmosphere.

Different successions for two long-lived family firms are illustrated in a systematic fashion: based on the theoretical elements suggested both cases are described to get insights into the usefulness of the theoretical reasoning developed. On the basis of these, the cases are compared with each other and conclusions for both cases are drawn. Implications for theory and practice as well as avenues for future research are sketched.

The focus of the current study is to gain more insight into long-lived family businesses by comparing two cases over a period of more than 200 years with regard to strategically relevant resources as well as the underlying transaction atmospheres. Implications for family firms depending on the resource types and transaction atmosphere are discussed.