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Accident at work as an indicator supporting the decision making process

Strzelecka Agnieszka, Pytel-Kopczyńska Marzena, Droppa Milan

System Safety : Human - Technical Facility - Environment

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2019

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Vol. 1, nr 1

85--95

EN

Identification of trends of the examined phenomenon plays a major role in taking decisions and allows conducting a deeper analysis of phenomena connected with the shaping of proper working conditions. One of the result indicators in the OSH system is the accident rate, whose existence is the result of a combination of various events. Seeking tangible economic benefits, decision makers in business entities who wish to improve activities protecting health and life of employees, pay great attention to using quantitative methods and drawing conclusions from them. This is conditioned by the fact that the analysis of the economic aspects of accidents is connected to a large extent with the cost of benefits the employer incurs for the benefit of accident victims. Therefore, the main goal of the article is to examine what impact on the cost of benefits due to accidents at work is exerted by such factors as: the number of related benefits, persons injured in accidents at work depending on the consequences and the number of days of inability to work caused by these accidents. Furthermore, this paper shows changes in costs of accident benefits of persons receiving those benefits due to inability to work caused by accident in business. In order to achieve this, it is proposed to present an econometric analysis based on the cross-section-time data with the dynamics of considered variables in voivodeships in Poland being examined. The study uses the annual data for the years 2010-2017. The data come from the CSO publications.

2

Harmonogramowanie przedsięwzięć budowlanych z uwzględnieniem modelu czasowo przestrzennego

Bolotin S., Dadar A., Rogalska M., Hejducki Z.

Przegląd Budowlany

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2014

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R. 85, nr 11

42--46

PL

W artykule przedstawiono metodykę harmonogramowania przedsięwzięć budowlanych realizowanych w systemie potokowym, z zastosowaniem modelu czasowo przestrzennego. Zaproponowano model obliczeniowy czasów realizacji procesów budowlanych z uwzględnieniem zjawiska niepewności danych i ich skutku na przebieg procesu oraz na termin zakończenia zadania inwestycyjnego. Wykorzystuje on pojęcia perspektywy zdarzeń oraz horyzontu czasowego. Podjęto próbę adaptacji modelu matematyczno-fizycznego do szacowania terminów zakończenia budowy.

EN

The paper presents the methods of scheduling construction projects realized according to the pipelined workflow system and with the use of the space-time model. A model of calculating the time of realization of construction projects has been proposed taking into consideration the data uncertainty and its effects on the progress of the process and the date of completion of the investment. It makes use of the concepts of the perspective of events and the time horizon. It also attempts to adapt the mathematic and physical model to the assessment of the time of construction completion.

3

On certain transformation properties of Maxwell’s equations

Apanasewicz S., Pawłowski S., Plewako J.

Przegląd Elektrotechniczny

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2013

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R. 89, nr 12

283-285

EN

In the presented paper a transformation problem for Maxwell’s equations in a vacuum is analysed within a certain transformation class of space-time coordinates. They may, in particular, to describe a transition between two reference frames moving with respect to one another in a single direction at arbitrary varying speed.

PL

W prezentowanej pracy analizowane jest zagadnienie przekształcenia równań Maxwella w próżni dla pewnej klasy transformacji współrzędnych czasoprzestrzennych, które mogą w szczególności opisywać przejście między dwoma układami odniesienia poruszającymi się względem siebie ruchem prostoliniowym z dowolnie zmieniającą się prędkością.