Experimental Evaluation of the Availability of LoRaWAN Frequency Channels in the Czech Republic

LoRaWAN communication allows you to create IoT (Internet of Things) solutions across many disciplines. A specific field of application is precision agriculture, which demands this technology mainly due to the fact that it is possible to create low power sensor devices with it. However, in densely populated areas, a lower success rate of message delivery can be observed on some communication channels. For example, this can have an impact on urban agriculture projects. After performing an experiment and analytical–statistical data processing using the Geographic Information System (GIS) tool ArcGIS Insights, it was shown that the success of message delivery on the basic LoRaWAN channel (868.3 MHz) is lower than for the others. Therefore, to ensure higher reliability and thus energy savings, it is appropriate to optimize the use of frequency channels.

Occupational diseases in the automotive industry from medical and geographic viewpoints - comparison between the Czech Republic and the Slovak Republic

OBJECTIVE

The aim of the study was to compare the occurrence of occupational diseases (ODs) in the automotive industry in the Czech Republic and the Slovak Republic and to analyze their determinants.

METHODS

The aggregated and anonymized data on ODs from the period 2001-2017 were used. A questionnaire survey was conducted in the Czech Republic (response rate 70.6%) and in the Slovak Republic (response rate 57%). The occurrence of ODs according to socioeconomic factors, the size of enterprises and their position in the global production networks was evaluated. The quality and scope of the occupational health services were also taken into consideration.

RESULTS

Workers older than 40 years were at a significantly higher risk of ODs than the younger ones. In the Czech Republic, it corresponded to OR 2.77 (95% CI 2.41-3.19), in the Slovak Republic to OR 2.01 (95% CI 1.34-3.01). The risk of ODs in women was significantly higher than in men - in the Czech Republic it corresponded to OR 3.20 (95% CI 2.79-3.67), in the Slovak Republic to OR 2.43 (95% CI 2.05-2.87). The difference between the two states did not reach statistical significance in any of the studied factors. In both states, no ODs were reported from the microenterprises.

CONCLUSION

Given the results of the study, it can be recommended to focus on the ergonomics of assembly work in the automotive industry. Special attention should be given to the provision of occupational health services, especially in microenterprises.

Occupational diseases in the automotive industry in Czechia - Geographic and medical context

OBJECTIVES

The automotive industry represents the most important industrial sector in Czechia. The objective of this study has been to analyze the occurrence of occupational diseases (OD) in the automotive industry during the period from 2001 till 2014.

MATERIAL AND METHODS

Data on OD cases was retrieved from the National Registry of OD. Further, we conducted a survey in automotive companies with focus on occupational health services and positions of the companies in global production networks (GPNs). An analysis of OD distribution in the automotive industry was performed (age, gender, company size and its role in GPNs, regional distribution of studied companies, and regional unemployment rate), and was accompanied by assessment of the quality and range of occupational health services.

RESULTS

Employees older than 40 years old have nearly 2.5 times higher probability of OD occurrence as compared with employees younger than 40 years old (odds ratio (OR) = 2.41, 95% confidence interval (CI): 2.05-2.85). Occupational diseases occurrence probability was 3 times higher for women than for men (OR = 3.01, 95% CI: 2.55-3.55). Occupational diseases incidence rates increased with the size of the company (0 OD/10 000 employees in micro enterprises to 57 OD/10 000 employees in large enterprises). A particularly steep rise in OD incidents in the automotive industry was observed in the Plzeň Region between 2001 and 2011. An association between OD incidents and the unemployment rate was not statistically confirmed.

CONCLUSIONS

A statistically significant increase in OD incidents dependent on company size may be arguably attributed to a higher quality of occupational medical services in bigger companies, which ensures better detection and diagnosis of OD. In the Plzeň Region, the rapid increase in OD incidents was mainly caused by a change in the production process of automobile textiles in one factory due to the introduction of a glue containing isocyanates, which are potent allergising agents. This led to an increase in occupational allergic diseases - bronchial asthma in particular. Int J Occup Med Environ Health 2017;30(3):455-468.

Twenty year development of occupational diseases in the Czech Republic: medical and geographical aspects

The study analysed occupational diseases in the Czech Republic from the viewpoint of occupational medicine and medical geography. It used a dataset consisting of 32,646 cases of occupational diseases reported during the period of 1994-2013. The descriptive part of the study analysed occupational diseases according to their spatial distribution, occurrence in different branches of economic activities, employees' gender, and according to chapters of the List of occupational diseases. The incidence of occupational diseases showed an overall decreasing trend, which can be related to several factors--transformation of the national economy (shift from heavy industry to manufacturing industry and services), an improvement in access to occupational healthcare services, increased responsibility of employers for safe working conditions, but also a concealment of health problems by employees for fear of losing job. An exception to the decreasing trend is the automotive industry, in which the upward trend in occupational diseases occurrence was noted. The analytical part of the study focused on the relation between unemployment and occupational diseases incidence rates in different regions of the Czech Republic. In most regions, a statistically significant inverse association was shown between the rate of unemployment and occupational disease incidence. The situation is described in more detail for the Moravia-Silesia and Ustí nad Labem Regions and the Capital City of Prague, wherein a statistically significant inverse association was shown between the rate of unemployment and occupational disease incidence. The theory of marginal utility can explain the phenomenon. To certain degree of health problems, employees tend to prefer employment stability, especially if the unemployment is on rise in their region. On the other hand, if losing their job, they often try to claim benefits connected with occupational diseases.