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The purpose of this paper is to expand the research on citizen participation in police work by attempting to disentangle the difference between volunteers and general citizens.

Independent variables including the demographic characteristics, victimization experiences, fear of crime, neighborhood disorders, and satisfaction with the police services were used to explain the volunteers’ attitudes toward the police. A random sample of general citizens was used as a comparison group. Using two data sets derived from a survey of 324 citizen volunteers in community policing programs and a random telephone survey of 1,197 general citizens in Houston, TX, two structural equation modeling models for general citizen sample and citizen volunteer sample were tested.

The results revealed that satisfaction with the police services was the only factor having a direct impact on attitudes toward the police in volunteer group. In addition, volunteers’ attitudes toward the police and satisfaction with the police services were higher than general citizens even though their victimization experiences, fear of crime, perceived neighborhood disorders were higher than general citizens.

The authors argue that there is a strong diffused support, first raised by David Easton (1965), among the volunteers. This exploratory study would be a reference for future studies.

The purpose of this study was to expand available knowledge on predictors of male inmate violence by examining a large set of variables offered by the importation, deprivation and threat appraisal and coping theories.

A total of 465 male inmates from five medium-security prisons in Wisconsin completed surveys to report demographics, violence, personality, social stressors and healthy coping behaviors to help manage risk by identifying key factors.

Inmates reported more violence with the “imported” characteristics of younger age, less incarceration, no college experience and personality patterns of impulsiveness, hostility and internal locus of control. More violence was reported by inmates with social stressors experienced from family and correctional staff. Additionally, less violence was reported by inmates with more healthy coping behaviors of exercise and social support, especially from family and other inmates.

One must remain uncertain about whether similar patterns of demographics, personality, social stressors and coping behaviors associated with inmate violence would be found in other US prisons. Future research can determine whether similar predictors of violence are found for women inmates and the consideration of ethnicity should be warranted when examining predictors of inmate violence.

Prison administrators can develop new programs to reduce social stressors and increase healthy coping behaviors found by this study to be significantly associated with reduced violence, exercise and social support from other inmates and family.

This research recommends that educating and training correctional staff for a trauma-informed care approach is an integral part of lessening the effects of “pains of imprisonment” on inmate violence and healing the effects of trauma.

To the best of the authors’ knowledge, this study provides the first direct comparison of social stressors from other inmates, correctional staff or family members outside the prison as possible predictors of male inmate violence.

The purpose of this study is to analyze the relationship between country risk, stock prices and the exchange rate of the renminbi (RMB) compared to that of the US dollar.

An extended open macroeconomic model with investment–saving, liquidity preference–money supply and aggregate supply functions was used by applying comparative static analysis. After checking the series for stationarity and cointegration, a vector autoregressive model was applied. Lag length was selected based on the Akaike information criterion, and the coefficients were calculated for the overall sample and for pre- and post-July 2005 periods.

The stock market index is a significant determinant of variation in the exchange rate: when the Chinese stock market performs well, the RMB appreciates and vice versa. Country risk is not a significant determinant of the exchange rate, but the exchange rate of the RMB is a highly significant determinant of the country risk of China: depreciation of the RMB results in higher country risk and vice versa.

Linear interpolation was used to calculate the monthly values of some of the variables for which only annual data were available.

The authorities should revalue the exchange rate of the RMB against the US dollar, which will result in lower country risk for China. One way to achieve this is to strengthen the performance of stock markets.

To the best of the authors’ knowledge, this is the first study to explore the relationship between the country risk of China and the exchange rate of the RMB. Using an open macroeconomic model, this novel research analyzes the relationships between country risk, stock prices and the exchange rate of the RMB from a different perspective.

The purpose of this paper is to analyze the historical pattern of environmental cost due to grain production in China and to provide further implications of technologies and policies for the transformation of China’s agricultural development toward sustainable intensification.

The data sets about grain production, arable land and chemical fertilizer use in China were collected from FAO, NBSC, and IFA. Greenhouse gas emissions were estimated using life cycle assessments. The policies concerning grain production and the environment were collected from the Ministry of Agriculture, and the State Council of China.

China has produced enough food to feed its growing population, but has neglected the resource-environmental costs of grain production since 1978. Consequently, China’s grain production is always accompanied with a high cost of resource and environment sustainability. However, from 2006 to 2015, the growth rate of grain production has surpassed that of chemical fertilizer consumption, resulting in improvement in nutrient use efficiency and decreasing trends of environmental cost for grain production. This could be partially attributed to technology innovations, such as Soil-Testing and Fertilizer-Recommendations (STFR), soil quality and crop management improvement, and so on, and policy supports (policies of STFR, soil quality improvement, and high-yield construction). This indicated that China’s grain production is starting to transform from high-input and high-output model to “less for more.”

This study is the first to determine the detailed, historical role of technological innovation and agri-environmental policy on the sustainability of grain production in China. The findings should have significant implications for technology and policy for the transformation of China’s agriculture development to sustainable intensification.

This study seeks to explore the presence and the relative strength of market efficiency in the onshore and offshore Renminbi (RMB) forward markets.

In the onshore and offshore foreign exchange markets, the RMB forward contracts are designed in similar ways. However, the underlying economic forces and regulatory frameworks are very different in these two markets. We first analyze the functioning of each market, by examining the covered interest rate parity (CIRP) conditions. Second, we explore the CIRP deviations in the two markets and quantify the role of market frictions and government interventions.

We find that the CIRP condition does not hold in either the onshore or the offshore RMB forward markets. We also find that the offshore market is more efficient than the onshore market in conveying private information about investors’ expectation.

Our results reveal that the onshore RMB forward market provides an imperfect platform for investors to manage their currency exposures. We suggest that by opening the offshore market to domestic participants and the onshore market to more foreigners, the forward rates may become more informative with a greater investor mix. These liberalization efforts are important steps in the right directions to improve market efficiency in the Chinese FOREX market.

The purpose of this paper is to examine the effects of top management support (TMS) and inter-organizational relationships (IORs) on external involvement (EI), and their differences across different ownerships.

To test the research hypotheses, structural equation modeling was conducted using data from 176 Chinese manufacturing firms.

TMS enhances relationship with customers and relationship with suppliers. Relationship with customers increases the degree of customer involvement, while relationship with suppliers increases the degree of supplier involvement. In addition, TMS improves customer involvement while does not improve supplier involvement directly. A further analysis reveals that the relationship between TMS and supplier involvement is partially mediated by relationship with suppliers in Chinese-controlled firms, whereas it is completely mediated by relationship with suppliers in foreign-controlled firms. Moreover, the effect of relationship with suppliers on supplier involvement is stronger in foreign-controlled firms than in Chinese-controlled firms.

This study employed perceptual data from a single respondent in each firm. In addition, the data used in this study were collected from one side of the dyad: the manufacturers.

Both Chinese-controlled and foreign-controlled firms should get support from top management and develop close relationship with customers and suppliers to improve EI.

This study extends our knowledge in the field by examining how TMS and prior history of IORs can improve the degree of EI.

This paper studies the lateral stability regulation of intelligent electric vehicle (EV) based on model predictive control (MPC) algorithm.

Firstly, the bicycle model is adopted in the system modelling process. To improve the accuracy, the lateral stiffness of front and rear tire is estimated using the real-time yaw rate acceleration and lateral acceleration of the vehicle based on the vehicle dynamics. Then the constraint of input and output in the model predictive controller is designed. Soft constraints on the lateral speed of the vehicle are designed to guarantee the solved persistent feasibility and enforce the vehicle’s sideslip angle within a safety range.

The simulation results show that the proposed lateral stability controller based on the MPC algorithm can improve the handling and stability performance of the vehicle under complex working conditions.

The MPC schema and the objective function are established. The integrated active front steering/direct yaw moments control strategy is simultaneously adopted in the model. The vehicle’s sideslip angle is chosen as the constraint and is controlled in stable range. The online estimation of tire stiffness is performed. The vehicle’s lateral acceleration and the yaw rate acceleration are modelled into the two-degree-of-freedom equation to solve the tire cornering stiffness in real time. This can ensure the accuracy of model.

Although previous research has recognized the pivotal role of mobile social media in knowledge sharing among project members, little is known about what factors affect knowledge sharing in mobile social media groups (MSMGs). Against this background, using normative social influence theory, this study attempts to explore factors influencing knowledge sharing in MSMGs.

Data from 205 Chinese construction project members are collected and used for analysis. Ordinary least squares regression by Stata 16 is used to test the proposed hypotheses.

Concerning role norms, gender difference in knowledge sharing behavior (KSB) is found, while it is not the case for knowledge quality (KQ). Work experience is found to positively affect KQ, but shows no influence on KSB. As for group norms, the inverted-U relationship between number of members and KSB is partially supported. In addition, organizational norms generally exhibit the greatest influence on both KSB and KQ among the three forms of norms.

This study deepens the understanding of knowledge sharing factors in mobile social media environments and affords practical implications for how to make full use of social media for knowledge management within construction project teams.

This work was focused upon the main factors that influence the formation of a hydroxypropyl-β-cyclodextrin (HP-β-CD) supramolecular complex with octadecylamine (ODA) and their optimal processing conditions. The anti-corrosion properties of the products in the simulated boiler water condensate of power plants also needed to be tested. The paper aims to discuss these issues.

A grinding method was applied to synthesize the supramolecular structures. Using Fourier transform infrared, X-ray diffraction and proton nuclear magnetic resonance spectroscopy (1H NMR), the specific structures of the complex were clarified. The anti-corrosion properties were obtained from gravimetric results, potentiodynamic polarization tests and electrochemical impedance spectroscopy measurements.

The results reveal the highly soluble supramolecular complex could be formed between two HP-β-CD molecules and one ODA molecule at 85°C with a processing period of 15 minutes. In the condensate, the corrosion inhibition efficiency of the complex was over 95 percent, much higher than the inhibition efficiency of the hydrophobic ODA compound.

The supramolecular corrosion inhibitor could be used as an anti-corrosion method for industrial boiler condensate to reduce the content of corrosive ions. In this way, it is easier to reuse the condensate without re-polishing.

The research introduces supramolecular chemistry into corrosion science for the first time. The results provide a new option to modify the traditional corrosion inhibitors.