Development and Application of a Probabilistic Risk–Benefit Assessment Model for Infant Feeding Integrating Microbiological,Nutritional, and Chemical Components

A probabilistic and interdisciplinary risk–benefit assessment (RBA) model integrating microbiological, nutritional, and chemical components was developed for infant milk, with the objective of predicting the health impact of different scenarios of consumption. Infant feeding is a particular concern of interest in RBA as breast milk and powder infant formula have both been associated with risks and benefits related to chemicals, bacteria, and nutrients, hence the model considers these three facets. Cronobacter sakazakii, dioxin‐like polychlorinated biphenyls (dl‐PCB), and docosahexaenoic acid (DHA) were three risk/benefit factors selected as key issues in microbiology, chemistry, and nutrition, respectively. The present model was probabilistic with variability and uncertainty separated using a second‐order Monte Carlo simulation process. In this study, advantages and limitations of undertaking probabilistic and interdisciplinary RBA are discussed. In particular, the probabilistic technique was found to be powerful in dealing with missing data and to translate assumptions into quantitative inputs while taking uncertainty into account. In addition, separation of variability and uncertainty strengthened the interpretation of the model outputs by enabling better consideration and distinction of natural heterogeneity from lack of knowledge. Interdisciplinary RBA is necessary to give more structured conclusions and avoid contradictory messages to policymakers and also to consumers, leading to more decisive food recommendations. This assessment provides a conceptual development of the RBA methodology and is a robust basis on which to build upon.     

Random sampling of long-memory stationary processes

This paper investigates the second order properties of a stationary process after random sampling. While a short memory process gives always rise to a short memory one, we prove that long-memory can disappear when the sampling law has heavy enough tails. We prove that under rather general conditions the existence of the spectral density is preserved by random sampling. We also investigate the effects of deterministic sampling on seasonal long-memory.     

Corporate Governance: Stakeholder Value Versus Shareholder Value

Unsatisfied with the dominatingshareholders' point of view, that appears to betoo limited to build a relevant theory ofcorporate governance, we propose an enlargeddefinition of the value which may be called,the stakeholder value. This definition and itsassociated measure are more suitable for thestakeholder approach to the firm and morerelevant to understand the value creation andsharing mechanisms.     

一战时期驻法华工教育与工人政治意识觉醒

一战时期,大量华工赴法从事战地、后勤等工作.在此期间,接受了大量有形和无形的教育,其中的扫盲教育、工业技能教育和政治教育帮助华工们产生了工人政治意识.这个意识的形成又是以罢工和建立工会组织的工人运动所体现的,并且深刻影响了中国近代史的发展.     

Hybrid Evolutionary Algorithms for Graph Coloring

A recent and very promising approach for combinatorial optimization is to embed local search into the framework of evolutionary algorithms. In this paper, we present such hybrid algorithms for the graph coloring problem. These algorithms combine a new class of highly specialized crossover operators and a well-known tabu search algorithm. Experiments of such a hybrid algorithm are carried out on large DIMACS Challenge benchmark graphs. Results prove very competitive with and even better than those of state-of-the-art algorithms. Analysis of the behavior of the algorithm sheds light on ways to further improvement.     

‘Ties that Bind’: A Transactional Approach to Social Capital

Abstract

The last decade has witnessed a renewed interest in the concept of social capital. However, much confusion still exists about the exact meaning of social capital. Thus, to create a foundation for future studies on social capital, this article develops a conceptual and theoretical framework to depict the stocks and flows of social capital. As such, it defines social capital formation in transactional terms so as to exploit fully the capital analogy used to characterise social capital and to place the concept of social capital on par with fixed, financial and human capital.     

‘The nice culture and the good behaviour’ state media and ethnic minorities in Lào Cai province,Vietnam

In the northern highlands of Vietnam, a very specific official vision of culture is at the core of the modernisation projects of Vietnam Television VTV5 (?ài Truy?n hình Vi?t Nam), a channel dedicated to educating ethnic minorities, and of the Lào Cai provincial branch of the Ministry of Culture, Sports and Tourism (MCST, B? V?n hóa, Th? thao và Du l?ch). These two state institutions jointly organise film screenings – for instance condemning the production and consumption of opium and heroin – in remote villages where they intend to modify cultural practices. These state social actors also produce films that represent what are deemed exemplary minority traditions for public consumption. Our observations of these media processes lead us to suggest that the subjects of these exogenous initiatives are adjusting strategically, activating patterns of quiet resistance to maintain their identities and subvert marginalisation.     

Total work and gender: facts and possible explanations

Time-diary data from 27 countries show a negative relationship between GDP per-capita and gender differences in total work—for pay and at home. In rich non-Catholic countries, men and women average about the same amount of total work. Survey results show scholars and the general public believe that women work more. Widespread average equality does not arise from gender differences in the price of time, intra-family bargaining or spousal complementarity. Several theories, including ones based on social norms, might explain these findings and are consistent with evidence from the World Values Surveys and microeconomic data from Australia and Germany.     

Management innovation: a dynamic analysis of the implementation phase over time

Abstract

We develop management innovation theory, providing insights into the role of time in the implementation phase. The management innovation literature has sought to empirically identify factors that facilitate or hinder management innovation implementation from a static perspective. To address the evolution of these factors’ resistance, a temporal perspective is appropriate, but an analysis of these factors’ evolution over time is lacking. We identify the inhibiting factors that influence the management innovation implementation phase over time and address ways in which they evolve.We conduct a comparative longitudinal and dynamic analysis based on two intermediate-sized enterprises and address the obstacles that emerge during the implementation phase of a specific management innovation: lean manufacturing. Our results highlight different categories of inhibiting factors: some inhibiting factors appear at the beginning of the implementation phase with high intensity and then fade over time; conversely, other inhibiting factors appear later and then increase in intensity.     

Work-related episodic memories can increase or decrease motivation and psychological health at work

ABSTRACT

Research on the psychological mechanisms underlying employee motivation and psychological health at work has been limited to general and chronic workplace factors, such as job strenuousness or management style. In two studies, we examine how unique and time-specific work life events encoded as episodic memories can influence employee motivation and psychological health at work as a function of how these events are recalled having been experienced in terms of need satisfaction. In Study 1, participants described a self-defining work-related memory and rated it for need satisfaction. They also completed scales of need satisfaction at work, self-determined motivation, and positive and negative indicators of psychological health (i.e. work satisfaction and burnout). In Study 2, participants completed the same tasks and scales, but they did it again two years later. Results revealed that need satisfaction in self-defining work-related memories was associated with self-determined motivation and indicators of psychological health at work, over and above demographics (age, sex, weekly hours worked, education) and general perceptions of need satisfaction at work. Moreover, it predicted increases in self-determined motivation and in work satisfaction and decreases in burnout over two years. The present findings underscore the importance of considering unique work life events encoded in memory.