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In this study, a novel glutathione (GSH) surface molecular imprinting polymer (SMIP) was successfully prepared by using macroporous adsorption resins (MAR) as substrate, which could separate and purify GSH efficiently.

SMIP was synthesized by chloromethylated modified MAR (LX1180-Cl) as the substrate, N, N’-methylenebisacrylamide (NMBA) as a crosslinker, GSH as a template, acrylamide (AM) and N-vinylpyrrolidone (NVP) as functional monomers. The morphology and structure of the polymer were characterized by scanning electron microscope and Fourier transforms infrared spectroscopy.

The maximum adsorption capacity toward GSH was 39.0 mg/g and the separation decree had relation to L-cysteine (L-cys) was 4.2. The optimal operation conditions were studied in detail and the got as follows: the molar ratios of NMBA, AM, GSH and NVP, were 7.0, 0.8 and 0.5. The optimal time and temperature were 14 h and 40°C, respectively. The Langmuir and pseudo-first-order model were fitting these adsorption characteristics well.

GSH has a diversity of medicinal and bioactive functions, so the purpose of this study representing a method in separate and purify technology of GSH, which provided a way for the development of medicine.

This contribution provided a novel way to separate GSH from L-cys. Under the optimal conditions, the maximum adsorption capacity toward GSH was 39.0 mg/g and the separation decree had relation to L-cys was 4.2.

This paper aims to evaluate the separation and purification characteristics of flavonoids from polygonum cuspidatum (PC) extracts by using macroporous adsorption resins (MAR) mixed bed to improve the utilization rate of flavonoids.

Taking the separation performance of flavonoids as an evaluation index, the best MAR were screened from 31 sorts of MAR and combined the best MAR to form a MAR mixed bed for adsorption and separation of flavonoids.

By studying the separation conditions that affect flavonoids, the results showed that resin LZ-72 has best separation and purification effect on flavonoids under the optimal adsorption and desorption conditions, the purity of the obtained flavonoid compound reaches 82.50%, 2.66 times of the initial extract, and the recovery rate reaches 89.70%. Theoretical research results have shown that the adsorption of flavonoids by MAR conforms to the pseudo-second-order kinetics and Freundlich models.

Because the flavonoids in PC have great medicinal value, the purpose of this work is to develop a method of separating and purifying flavonoids from PC, which will provide a certain foundation for the development of medicine.

This contribution provided a novel way to separate flavonoids from PC. Under the optimal conditions, the content of flavonoids in the product was increased 2.66-fold from 31.01% to 82.50%, and the recovery yield was 89.70%.

Drawing on ego depletion theory, this study aims to provide insights into the effect of work-family conflict on the high-speed railway (HSR) drivers’ safety performance by examining the mediating role of ego depletion and the moderating roles of work-family centrality and supervisor safety support.

In total, 243 HSR drivers from 7 railway bureaus in China were surveyed. Structural equation modeling was used to test the hypotheses.

Both work-to-family conflict and family-to-work conflict have direct and positive effects on HSR drivers’ ego depletion and indirect effects on both safety compliance and safety participation via ego depletion. Moreover, both the direct effect of work-family conflict on ego depletion and its indirect effect on safety performance are moderated by work-family centrality. Supervisor safety support plays a buffering role in the relationship between ego depletion and safety performance.

This study examined the relationship between work-family conflict and safety performance based on the perspective of ego depletion theory. The findings testify to the importance of reducing work-family conflict among HSR drivers pursuant to maximizing safety.

This paper deals with two problems in transport network planning and control: trip matrix estimation and traffic signal optimisation. These two problems have both been formulated as bi-level programming problems with the User Equilibrium assignment as the second-level programming problem. One currently used method for solving the two problems consists of alternate optimisation of the two sub-problems until mutually consistent solutions are found. However, this alternate procedure does not converge to the solution of the bi-level programming problem. In this paper, a new algorithm will be developed and will be applied to two road networks.

China’s new rural pension program (NRPP), a fully funded defined contribution plan among the rural residents with heavy government subsidy toward contributions, has expanded rapidly since its introduction in 2009, and is expected to achieve universal coverage by the end of 2012. Empirical evidence, however, shows that although those close to pension eligibility age are enthusiastic, take-up rate is low among younger people, and participants tend to choose plans with the least contribution requirements, threatening the long-term viability of the program. We calculate the net benefits of participation on behalf of rural residents and demonstrate that poor designs are responsible for these problems. A proper rate of return on individual investment is not only essential for encouraging participation and ensuring a higher replacement rate but will also require less government subsidy and relieve fiscal burdens on the government.

The current crisis of sociological theory is due to our failure to do sociology as a positive science‐our failure to accept both explanation and prediction as the goal of theorizing, and to use predictive power as the primary criterion for assessing theories. It is argued that sociology as a positive science can advance sociological theory. It is also argued that a positive science of sociology is possible by correcting four major fallacies‐i.e., fallacies concerning controlled experiments, realism of assumptions, subjectivity, and complexity.

The economic reform started in 1978 progressively pushed China into one of the largest market-oriented economies in the world. The reform also triggered substantial transformations in the labor market. The labor surplus generated by increased productivity in rural areas, together with the growth in labor demand driven by export-oriented sectors in urban areas, contributed to the largest movement of workforce in history. The rural-to-urban migration currently taking place is substantially contributing to the sustained economic growth of China – especially of its cities – but also raises important issues about segregation and inequality in the urban labor market. In contrast, migration has also significant consequences for the individuals left-behind in rural areas. How economic conditions in sending households and villages are affected by the remittances sent by migrants, or by their return from the cities, is crucial for assessing the benefits of migration. The gradual decline of state-owned companies and the rise of the private sector emphasize on the one hand the consequences that labor reallocation has on the occupational mobility of the workforce and on the other the crucial role that entrepreneurship will have in the future development of China. Pulled by economic growth, investments in education have substantially increased especially in urban areas, posing challenges on how skills can be efficiently allocated in the labor market. In the background, reforms of the welfare system have slowly started to take place. One clear challenge is how the social insurance and pensions system can be transformed into one that is more compatible with a market economy. Another issue will soon be its sustainability, considering the imminent shrinking of the labor force caused – among other things – by the one-child policy.

This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/02610150310787351. When citing the article, please cite: Dean Elmuti, Judith Lehman, Brandon Harmon, Xiaoyan Lu, Andrea Pape, Ren Zhang, Terad Zimmerle, (2003), “Inequality between genders in the executive suite in corporate America: moral and ethical issues”, Equal Opportunities International, Vol. 22 Iss: 2, pp. 40 - 58.

This study aims to reveal the positive side of poor voice quality. Grounding on sociometer theory, this study proposes a model to explore how poor voice quality affects employee's motivation to make high-quality voice via managerial non-endorsement and employee's self-perception of poor voice quality.

The sample consisted of 247 employees and immediate supervisors of employees in China. To minimize potential common method biases and reduce participants' fatigue, a three-wave method for the data collection with each wave separated by one month was executed. Path analysis and bootstrapping approach were adopted to verify the hypotheses.

The results illustrated that employee's poor voice quality was able to promote employee's motivation to make high-quality voice via managerial non-endorsement and employee's self-perception of poor voice quality.

First, this study extends our knowledge of the consequences of employee voice. Second, this study further contributes to the literature on voice quality by emphasizing the positive effects of poor voice quality. Third, this study enriches the sociometer theory by the explication of chain mediation as a key mechanism through which poor voice quality affects employee's motivation to make high-quality voice.

Reducing employees’ knowledge hiding is vital for enterprise managers. The development of enterprise social media brings opportunities for them to manage employees’ knowledge-hiding behaviors. However, whether the use of enterprise social media inhibits or promotes knowledge hiding is still unclear. The purpose of this study is to explore how enterprise social media usage affect employees' knowledge hiding.

Based on the intrinsic and extrinsic motivation model, this paper proposes a research model to investigate the relationship between enterprise social media usage and knowledge hiding, using a structural equation modeling analysis of 288 employees’ data.

The results show that work-related public social media usage has an inhibiting effect on employees’ knowledge hiding, whereas the effect of work-related private social media usage on employees’ knowledge hiding is not significant; socially related public social media and private social media usage has a promoting effect on employees’ knowledge hiding; and job engagement acts in a positive moderating role between socially related private and public social media usage and evasive hiding.

First, this paper contributes to knowledge-hiding literature by revealing the relationship between enterprise social media usage and knowledge hiding. Second, this study contributes to motivation theory by clarifying how the use of enterprise social media with different motivations affects knowledge hiding. Third, this paper also contributes to knowledge-hiding literature by revealing a boundary condition, namely, job engagement.