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Ewa Wojtyna and Patrycja Stawiarska

Humor styles and psychosocial working conditions in relation to occupational burnout among doctors

Medical professionals are an occupational group at a particularly high risk for job burnout. The aim of the study was to determine relationships between humor styles and psychosocial working conditions on the one hand and occupational burnout in the medical profession on the other. Participants in the study were 82 professionally active doctors, interviewed and examined using questionnaire methods: the Maslach Burnout Inventory, Humor Styles Questionnaire, and the Psychosocial Working Conditions instrument. The results show that occupational burnout is a serious problem among medical doctors, even those with a short work history. Difficult psychosocial working conditions enhance the occupational burnout symptoms. Moreover, higher severity of burnout symptoms correlates with lower support from superiors and with less frequent utilization of adaptive humor styles: self-enhancing and affiliative. Therefore, it is worthwhile to develop programs of burnout prevention for medical professionals, with an emphasis on social skills training, and to enlarge such resources as support at workplace and humor utilization skills.

Open access

Paweł Sobczak, Ewa Stawiarska, Judit Oláh, József Popp and Tomas Kliestik

Abstract

The main purpose of the paper was the structural analysis of the connections network used by a railway carrier Koleje Dolnośląskie S.A. operating in southern Poland. The analysis used simulation methods. The analysis and simulation were based on graph theory, which is successfully used in analysing a wide variety of networks (social, biological, computer, virtual and transportation networks). The paper presents indicators which allow judging the analysed connections network according to an appropriate level of transport services. Simulation results allowed proposing some modifications for the improvement of the analysed connections network. The paper also demonstrates that graph theory and network simulations should be used as tools by transportation companies during the stage of planning a connections network.

Open access

Jolanta Zalejska–Fiolka, Aleksandra Kasperczyk, Sławomir Kasperczyk, Barbara Stawiarska-Pięta, Rafał Fiolka and Ewa Birkner

Abstract

For 24 weeks, rabbits were fed feed containing non-oxidised or oxidised rapeseed oil. At the beginning of the experiment and every six weeks the rabbits were weighed and blood was taken. After the experiment was completed, their liver was dissected for biochemical and histological examinations. The activity of alanine aminotransferase, aspartate aminotrasferase, glutamate dehydrogenase, sorbitol dehydrogenase, and aldolase in blood plasma and liver were determined. Enzymes of the protein and liver metabolic pathways were determined using kinetic and spectrophotometric methods. The content of fatty acids was determined by means of fatty acid methyl ester concentration measurement using gas chromatography. It was found that the applied diet with oxidised rapeseed oil caused the development of slight liver steatosis and disturbances in the activity of enzymes involved in the liver pathways, despite the fact that it was a balanced diet, and differed only in the ratio of saturated to unsaturated fatty acids. The obtained results indicate that more profound oil oxidation and its increased supply in diet may result in the development of liver steatosis.

Open access

Barbara Stawiarska-Pięta, Jolanta Zalejska-Fiolka, Magdalena Wyszyńska, Anna Kleczka, Beata Janiga, Natalia Grzegorzak and Ewa Birkner

Abstract

Introduction: The aim of the study was to assess the influence of α-lipoic acid (ALA) on the morphology of the aorta and liver of rabbits fed high fat diet with addition of oxidised (ORO) and non-oxidised rapeseed oil (N-ORO).

Material and Methods: The study was conducted on male chinchilla rabbits divided into six groups. The control group (C) was fed a breeding standard diet (BSD), group I received BSD with the addition of ALA in the dose of 10 mg/kg b.w., groups II and III received BSD enriched with 10% addition of N-ORO or ORO, whereas rabbits from groups IV and V received BSD with 10% addition of N-ORO or ORO and ALA.

Results: Addition of ORO caused necrosis and steatosis of hepatocytes, as well as atherosclerotic plaques of various intensification in the aorta. In the liver of rabbits from group II (N-ORO) infiltrations of mononuclear cells was observed in the area of liver triads and between liver lobules. The beneficial influence of ALA was demonstrated in rabbits fed a diet containing N-ORO or ORO. In case of ORO, the activity of ALA was not fully effective.

Conclusion: Diet supplementation with ALA counteracts the changes generated in the liver and aorta under increased exposure to higher fat content in diet, in particular thermally treated fats.