基于网络的知识管理

随着无形产品与服务价值的不断创造 ,知识资本作为最主要的资本要素 ,成了企业竞争力的核心之一 ,从而对知识进行管理也成了企业迫切的任务。但知识资本只有在快速流通中 ,在组织成员广泛共享的情况下 ,才能不断增值并创造财富 ,而网络以其特有的时间上的光速性与空间上的广延性 。

SECURE STEGANOGRAPHY BASED ON BINARY PARTICLE SWARM OPTIMIZATION

The objective of steganography is to hide message securely in cover objects for secret communication.How to design a secure steganographic algorithm is still major challenge in this re-search field.In this letter,developing secure steganography is formulated as solving a constrained IP(Integer Programming) problem,which takes the relative entropy of cover and stego distributions as the objective function.Furthermore,a novel method is introduced based on BPSO(Binary Particle Swarm Optimization) for achieving the optimal solution of this programming problem.Experimental results show that the proposed method can achieve excellent performance on preserving neighboring co-occurrence features for JPEG steganography.

ADRs and Children： Knowledge and Methodological Standard in PASS （Post Authorization Safety Studies）

PhV （pharmacovigilance） knowledge has the outcome of being inadequate in particular due to the lack of instruction. Pediatricians have to face the realization that over-the-counter medicines increments the peril of ADRs （adverse drug reactions） has become a public health concern. The purpose of this article is to disseminate knowledge of the PhV and to highlight the cultural and organizational difficulties for its implementation. The objectives of promoting the organization of specific training courses and research projects aimed at： （1） to foster the culture of iatrogenic disease in pediatrics; （2） to improve the appropriateness of prescribing drugs in children; （3） to enco.urage spontaneous reporting of ADRs in children; （4） to involve Pediatricians in PASS （post-authorization safety studies） according to GCP, GVP and ENCEPP Code of Conduct. An up to date proposal of PhV, a procedure of preparation improves the productivity of creating novel informative reports which can be utilized for a benefit/risk scrutiny making strides in medicine prescription. In this context, FP-MCRN （family paediatficians-medicines for children research network） established with the aim of developing competence, infrastructure and education for paediatric clinical trials, plays a crucial role in paediatric PhV, through an improvement of PhV training, a correct research methodology and very strong relationship with the families. The initial necessity is cultural, implementing culture of iatrogenic illnesses and a watchful evaluation of the importance of PASS by FPs （family pediatricians）. Participation in clinical trials that generates a precise database administered by FPs together with follow-up outcomes becomes relevant and vital for a scrupulous and accurate assessment of ADRs. PASS can foresee on one hand training and information regarding the proper use of drugs in children and possible iatrogenic pathologies caused by their improper use, the other to constitute a territorial survey in the prescriptive appropriateness and safety of pediatric drugs aimed at evaluating the risk-benefit balance on usage.

A Knowledge Management Framework of the Information Technology-Based Approach for Improving Occupational Safety Training of Young Workers

This paper aims to develop a novel knowledge management framework for improving the system of pro-safety attitudes among young worker population in Poland. This is done through an efficient use of existing sources of explicit and tacit knowledge in the field of vocational occupational safety and health （OSH） training. This project identifies three specific research steps for the development of the knowledge management framework of the information technology-based approach for improving occupational safety training of young workers, including： （1） the development of the conceptual model of the flow of explicit knowledge of OSH; （2） evaluation of the effectiveness of formal and explicit knowledge sources for OSH and training methods using these sources in the context of attitudes towards health and safety at work; and （3） verification of the proposed model of vocational training with the use of combined explicit and hidden knowledge. The proposed framework includes consideration of the effectiveness of the formal and informal sources of safety knowledge. A mapping from the formal sources of explicit knowledge about the occupational safety to expected attitudes （hidden knowledge） towards OSH outcomes, including emotional, cognitive, and behavioral aspects has been used. The above framework should help to improve the system of vocational training for young workers in Poland.

Development of an Expert Model to Assess Falls from Height Hazards in Construction Sites

This paper reports on the current state of an ongoing research project which is aimed at implementing intelligent models for hardly predictable hazard scenarios identification in construction sites. As any programmatic actions cannot deal with the unpredictable nature of many risk dynamics, an attempt to improve the current approach for safety management in the construction industry will be presented in this paper. To this aim, the features offered by Bayesian networks have been exploited. The present research has led to the definition of a probabilistic model using elicitation techniques from subjective knowledge. This model, which might be meant as a reliable knowledge map about accident dynamics, showed that a relevant part of occurrences fall in the ＂hardly predictable hazards＂ category, which cannot be warded off by programmatic safety measures. Hence, more effort turned out to be needed in order to manage those hardly predictable hazardous scenarios. Consequently, further developments of this research project will focus on a real time monitoring system for the identification of unpredictable hazardous events in construction.