The article discusses the reasons why it is necessary to ensure the security of the data and information flow in the Industrial Internet of Things (IoT) and its systems. A layered security architecture with elements of protection of particular layers was presented. The flow of data and information collected and processed in the Internet of Things structures in the work environment is illustrated by an example of a system that includes sensors integrated with personal protective equipment. The article also presents general principles that should be followed when developing good practices in the area of ​​ensuring the security of data and information flow.

Monitoring of the mental strain (however, associated with occupational mental and cognitive overload) may be carried out with the use of a number of experimental methods. Heart rate variability (HRV), salivation cortisol registration or brain electrical activity record are the ones used most commonly. All of the mentioned methods require the involvement of an employee, which means her/his work is about to be interrupted and, therefore, his attitude may affect the results of measurements. The article presents information on the parameters related to the organ of sight, which can be used to assess the mental state and the impact of stress-inducing situations on employees, and simultaneously can be carried out by the use of remote measurement (e.g. eye-tracker located underneath PC screen).

Electromagnetic field emitted by laptops, were characterised. Computer devices are sources of complex electromagnetic field of frequency till several GHz. Assessment of electromagnetic hazards in working space  near above mentioned computer devices do not  need individual compliance of the level of electromagnetic exposure level with the limits provided with respect to protection of workers against electromagnetic hazards – in the case of the use of  devices removed at less 20 cm from body’s operator. Results of numerical calculation of SAR ratio in virtual women model’s shown in fact higher level of electromagnetic risk while  using laptop close to the body than while using laptop in longer distance. During the use of preventive measures for limitation of possible  electromagnetic risks also conditions of the use of portable computer device  according to ergonomic requirements should be assured.

The starting point of this article is the presentation of knowledge transfer as one of the most important elements in respect to the organization functioning in a world of knowledge-based economy and knowledge-based processes.

Secondary to that, chosen levels of knowledge transfer process analysis in the context of inequalities in the labor market, have been identified. Strategic value of knowledge, its type and components of the transfer process, and tools supporting it’s realization, are taken into consideration.

As a result, the universal premises of effective management of knowledge transfer in organizations are discussed, in the form of: shaping the optimal technical and social infrastructure of the knowledge environment, taking actions contributing to the evolution of organizational culture towards promoting knowledge and application of main values, general  and detailed principles of knowledge transfer.