Wyniki wyszukiwania - BazTech

1

Infografika jako narzędzie dydaktyczne. Analiza doświadczeń studentów Politechniki Gdańskiej

Łapińska Magdalena, Niewulis Anna

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

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2025

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nr 78

27--30

PL

W artykule przedstawiono analizę inicjatywy podjętej przez wykładowczynie Politechniki Gdańskiej, polegającej na dopuszczeniu własnoręcznie przygotowanych infografik (tzw. ściąg) podczas kolokwiów z matematyki. Celem badania było zrozumienie, w jaki sposób ta strategia wpływa na satysfakcję studentów, ich kondycję psychiczną oraz proces uczenia się. Wyniki ankiety przeprowadzonej wśród studentów pokazują, że możliwość korzystania z infografik znacząco obniża poziom lęku egzaminacyjnego i zwiększa pewność siebie podczas rozwiązywania zadań.

EN

The article examines an initiative introduced by lecturers at Gdańsk University of Technology, which allows students to use self-prepared infographics (cheat sheets) during mathematics tests. The aim of the study was to understand the impact of this strategy on student satisfaction, mental well-being, and the learning process. Survey data collected from students reveal that the opportunity to use infographics significantly reduces exam anxiety and increases self-confidence during the test.

2

Stress and the risk of occupational burnout in logistics and freight management

Śrębowata Milena, Brzozowska Marta, Ciesielska Anna

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2025

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z. 229

521--535

EN

Purpose: The utilitarian purpose of the study was to verify the level of stress among employees involved in logistics and freight forwarding management and the risk of their susceptibility to occupational burnout. Design/methodology/approach: The article is based on empirical research using questionnaires to measure stress (PSS-10) and to measure occupational burnout (LBQ), so it is based on data obtained from a control research group and statistical analysis. This was made possible by a comparative analysis of the group from the logistics industry and blue-collar workers in the surveyed organizations. The subject area is freight management and work psychology. Findings: The article charts the high level of stress in the group of respondents on freight forwarding management and among logisticians, as they are professional groups at significant risk of burnout. The results are alarming, as they are pointing to very high levels of stress among logisticians and freight forwarders. Research limitations/implications: The research focused on the SME sector, specifically on small shipping and logistics companies, so the results may be specific to this sector, and the sample was relatively small, which is a kind of limitation that makes the research conducted exploratory and preliminary. In the future, it would be advisable to conduct a longitudinal study and increase the research sample to see how the research would be consistent across a larger group for different transport industry converters. Practical implications: The empirical results can provide valuable guidance for human resource management in the logistics industry. In this area it is worth introducing practical strategies and methods of stress management and it is also necessary to introduce new standards for the development of career paths and reskilling opportunities among employees, so as to effectively counteract the phenomenon of professional burnout. Originality/value: This is the first research that spars the level of stress in the context of the risk of burnout among representatives of the logistics industry is new. Previous ones have parsed these phenomena, without an explicit link.

3

Lider pod presją. Jak budować odporność psychiczną w świecie BANI?

Jeske Adam

Kierunek Wod-Kan

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2025

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Nr 1

20--33

PL

Współczesne organizacje funkcjonują w warunkach permanentnej zmiany, niepewności i chaosu. W takich okolicznościach odporność psychiczna lidera - oraz jego zespołu - nabiera fundamentalnego znaczenia.

4

Evaluating of job crating intervention for employee’s wellbeing support - a case study of administrative employees at a higher education institution

Springer Agnieszka, Werner Iwona

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2024

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z. 200

433--444

EN

Purpose: The aim of this article is to evaluate the effectiveness of an intervention designed to enhance motivation and competencies in job crafting, and to identify selected factors that may influence the outcomes. The study examined the extent to which participation in a one-day workshop would enhance levels of task crafting, relational crafting, and cognitive crafting, as well as verifying whether employees' engagement would increase, and perceived work- related stress would decrease. Design/methodology/approach: A quasi-experimental procedure was used to achieve a goal. The procedure includes several stages, one of which was participation in a one-day workshop. Sample size of the intervention group (with workshop) was n = 23 of administrative employees from a private higher education institution, and control group n = 21 employees from the same organisation with comparable job characteristics. Findings: The results showed that the level of job crafting is related to individual characteristics such as self-efficacy and proactive attitude. In contrast, it does not depend on job characteristics such as autonomy and skill variety. In the conducted studies, no positive effects of the workshop on employee well-being were confirmed; however, it was noted that the workshop might act as a buffer protecting against a decline in well-being due to organizational factors. Research limitations/implications: The limitations of the research result from both the small size of the research sample and the narrow specialization of the surveyed employees. There is a need for research on other professional groups and in other sectors. Practical implications: Due to the pilot nature of the study and the limitations of the study mentioned above - no practical implications are identified. Originality/value: The research represents the first attempt in Poland to verify effects the of organizational intervention related to job crafting among administrative university employees.

5

Employment insecurity as an example of psychosocial risk at work - analysis of gender differences

Sadłowska-Wrzesińska Joanna, Nejman Żaneta, Fiderer-Urbaniak Magdalena

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2024

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z. 200

389--402

EN

Purpose: The aim of the article is to identify the feelings related to the development of automation, robotization and artificial intelligence, taking into account potential gender differences in the examined area. Design/methodology/approach: The goal was achieved by using theoretical analysis of the problem and empirical research. Empirical research was conducted in 2023 using an own survey in the Greater Poland Voivodeship among employees of various industries (n = 189). Findings: There are no significant differences between genders in feelings towards the development of artificial intelligence in the work environment. The results of the analysis of our own research did not confirm the fears and anxieties reported in the literature on the subject. Research limitations/implications: Due to the pilot study being conducted, certain limitations may be the small sample and the specificity of the industry and positions held (the study was conducted primarily on a group of so-called knowledge workers and administrative employees). Practical implications: Women feel a greater need for legal regulations regarding artificial intelligence than men, and they also show a more positive attitude towards the development of technology and artificial intelligence. It is worth using these conclusions when planning the implementation of new technologies in the company. Social implications: AI technology is developing at an unprecedented pace, opening up unlimited possibilities for people and significantly impacting their personal and professional lives. The lack of significant gender differences in the approach to modern technologies allows us to refute some gender stereotypes. Originality/value: While the issue of psychosocial occupational risks has been the subject of many studies and analyzes for years, the problem of gender differences in the discussed area constitutes a significant research gap.

6

Interrelationship Between Stress Coping Strategies and Psychological Defense Mechanisms in Conflict Situations : on the example of the military and civilian students

Kropadze Tinatin, Shavdatuashwili Elina

Przegląd Nauk o Obronności

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2024

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R. 9, Nr 19

89--105

EN

Objectives: This article intends to review the strategies for coping with stress and psychological defense mechanisms. Method: Research Goal: to determine the relationship between stress coping strategies and defense mechanisms, among students (the Junkers).Target Group: the Junkers of the National Defense Academy of Georgia. Hypothesis: It is assumed that Junkers may have different stress coping strategies than civilian students, depending on their activities. Their defense mechanisms may be different too depending on the academic year. Data Collection Procedure: The research was conducted in April 2023 on 289 members of the Junker Training Battalion of the Academy, which includes 40 female Junkers. These individuals receive professional military education and participate in practical activities, unlike civilian students. The research focused on the age group of 18-22 years and analyzed the results of a survey conducted on 283 respondents. In the research we used the following methods: The Lazarus/Folkman test adapted to the Georgian population for the study of stress-coping strategies was used as a research tool; In the case for both civilian and military students, an adapted Georgian version of the Kellerman-Plutchik test "Lifestyle Index" was used to study psychological defense mechanisms (Plutchik, Kellerman, 1980: 3-33). Results: After analyzing the conducted research, it has become evident that the tests are reliable in terms of total reliability as well as each component. In our study(In military institutions) the Cronbach's alpha coefficient is 0.743, which confirms the reliability of both individual subscales and the total scale. We can say that our hypothesis was confirmed. According to the research, a difference was found between civilian students and Junkers in terms of the relationship between stress-coping strategies and defense mechanisms and their use. In addition, we obtained different results with Junkers according to courses, gender, and specialties, which has been empirically confirmed and is a good prerequisite for planning future research. Conclusions: According to the research, a difference was found between civilian students and Junkers in terms of the relationship between stress-coping strategies and defense mechanisms and their use.

7

Innovative acoustic emission method for monitoring the quality and integrity of ferritic steel gas pipelines

Świt Grzegorz, Ulewicz Małgorzata, Pała Robert, Adamczak-Bugno Anna, Lipiec Sebastian, Krampikowska Aleksandra, Dzioba Ihor

Production Engineering Archives

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2024

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Vol. 30, Iss. 2

233--240

EN

This article presents a comprehensive improvement in the experimental analysis of cracking processes in smooth and sharp V-notched samples taken from gas transport pipelines, utilizing the acoustic emission (AE) method. The research aimed to establish a robust correlation between the failure mechanisms of uniaxially tensile samples and the distinct characteristics of AE signals for enhanced quality management in pipeline integrity. The study encompassed materials from two different straight pipe sections, encompassing both long-term used materials and new, unused materials. Through the application of the k-means grouping method to AE signal analysis, we achieved the identification of AE signal parameters characteristic of various stages of the material destruction process. This advancement introduces a significant improvement in monitoring and managing the operational safety of pipeline networks, offering a methodology that leverages advanced acoustic emission signal analysis. The outcomes present significant implications for the pipeline industry by proposing methods to enhance safety systems and more effectively manage the integrity and quality of gas infrastructure.

8

Occupational burnout among uniformed services – causes and ways to counteract it on the example of firefighters

Bogdan Stefanowski

Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej

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2023

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Nr 85

153--165

EN

In its broadest sense, how people function in the work environment is a point of interest for researchers from many scientific disciplines. Currently, research tends to focus increasingly on issues related to stress experienced in the workplace, various coping strategies and consequences manifested in many spheres of human life. Adverse working conditions can contribute to the emergence of the burnout syndrome, resulting, according to the classical concept, from a mismatch between the employees’ intentions and realities of the job caused by inadequate coping strategies. Professional burnout has diverse effects on wellbeing and health of employees. Firefighters are particularly exposed to the adverse impact of stress and professional burnout. This paper presents the phenomenon of professional burnout, an analysis of its causes, symptoms and consequences, as well as methods of its prevention. Original articles and case reports on firefighter burnout published from January 2002 to November 2022 were reviewed in Web of Science. The review identified the problem of burnout in the professional group of firefighters including potential directions for burnout prevention.

PL

W najszerszym ujęciu funkcjonowanie człowieka w środowisku pracy jest punktem zainteresowania badaczy z wielu dyscyplin naukowych. Obecnie badania coraz częściej koncentrują się na zagadnieniach związanych ze stresem doświadczanym w miejscu pracy, różnymi strategiami radzenia sobie z nim oraz konsekwencjami przejawiającymi się w wielu sferach życia człowieka. Niekorzystne warunki pracy mogą przyczynić się do powstania zespołu wypalenia zawodowego, wynikającego, zgodnie z klasyczną koncepcją, z niedopasowania intencji pracowników do realiów pracy, spowodowanego nieadekwatnymi strategiami radzenia sobie. Wypalenie zawodowe ma szereg skutków dla samopoczucia i zdrowia pracowników. Strażacy są szczególnie narażeni na negatywne skutki stresu i wypalenia zawodowego. W artykule przedstawiono zjawisko wypalenia zawodowego, analizę jego przyczyn, objawów i konsekwencji, a także metody jego zapobiegania. Dokonano przeglądu oryginalnych artykułów i opisów przypadków dotyczących wypalenia zawodowego strażaków opublikowanych od stycznia 2002 r. do listopada 2022 r. w bazie Web of Science. W wyniku przeglądu określono problem wypalenia zawodowego w grupie zawodowej strażaków, a także możliwe kierunki profilaktyki wypalenia.

9

Wpływ postępowania ze zwierzętami przed ubojem i metod oszałamiania na jakość mięsa wieprzowego

Jankowiak Hanna, Palka Robert

Przemysł Spożywczy

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2023

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T. 77, nr 3

19--22

PL

Mięso stanowi ważną część diety człowieka dostarczając m.in. białko o wysokiej wartości biologicznej, a wieprzowina jest najczęściej spożywanym mięsem w Polsce. Pozyskanie dobrej jakości tuszy oraz mięsa świń jest gwarantem wysokiej jakości produktów mięsnych. Ważnym momentem determinującym zmiany w mięsie jest ubój. Dostarczenie zwierząt rzeźnych wiąże się z mieszaniem osobników, załadunkiem, transportem, rozładunkiem, przepędem, magazynowaniem, procesem oszałamiania i kłucia, czyli wykrwawiania. Obrót przedubojowy i sam proces uboju stanowi zatem najbardziej stresogenny okres w życiu świni. Dobrostan zwierząt podczas transportu i uboju trzody chlewnej leży zatem w interesie zarówno producentów, jak i konsumentów. Kluczowym elementem w tym procesie jest bezstresowe doprowadzenie zwierząt do stanowiska ubojowego i przeprowadzenie w sposób właściwy oszałamiania. Przy uboju pośrednim świń wyróżnia się dwa rodzaje oszałamiania, tj.: elektryczne oraz gazowe, które są stosowane, w zależności od wielkości zakładów ubojowych. Celem pracy była analiza wpływu postępowania ze zwierzętami w trakcie uboju, ze szczególnym uwzględnieniem zastosowanych metod oszałamiania (ogłuszania) na jakość wieprzowiny.

EN

Meat is the part of the human diet that provides protein with high nutritional value, and pork is the most consumed meat in the world. Obtaining good quality carcass and meat from pigs is a guarantee of obtaining high-quality meat products. Slaughter is an important moment determining the changes in meat. The supply of slaughter animals involves the mixing of individuals, loading, transporting, unloading, herding, storage, stunning and bleeding. Therefore, the day of slaughter is the most stressful time in a pig’s life. That is why, animal welfare during the transport and slaughter of pigs is in the interest of consumers and producers. The key solution in this process is to bring the animals stress-free to the slaughter place and doing the stunning in right way. In indirect slaughter of pigs, two types of stunning are distinguished, i.e. electric and gas, which are used depending on the size of the slaughterhouses. The aim of the study was to analyze the impact of handling animals during slaughter on the pork quality, due to the use of the stunning method.

10

Rola ćwiczeń oddechowych w regulacji poziomu stresu i nastroju – przegląd badań

Sumińska Sylwia

Bezpieczeństwo Pracy : nauka i praktyka

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2023

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nr 7

16-19

PL

W artykule zaprezentowano związek pomiędzy regularnym praktykowaniem powolnego oddychania (tytułowych ćwiczeń oddechowych) a nastrojem i poziomem stresu, a także bezpośrednie efekty, jakie przynosi wykonanie kilkuminutowego ćwiczenia polegającego na spowolnieniu tempa oddechu. Wyjaśniono, czym są ćwiczenia oddechowe, oraz omówiono wyniki różnych badań dotyczących powolnego oddechu i jego wpływu na nastrój człowieka. Wiele z tych badań ujawnia, że odpowiednie ćwiczenia oddechowe przyczyniają się do poprawy nastroju i samopoczucia oraz spadku objawów napięcia i lęku, co przekłada się na lepsze funkcjonowanie człowieka w środowisku pracy, w tym na wzrost jego efektywności i satysfakcji z pracy. Z punktu widzenia firmy oznacza to z kolei mniejsze koszty wynikające z błędów popełnianych przez pracowników.

EN

The article presents the relationship between the regular practice of slow breathing and mood and stress levels, as well as the direct effects of a few minutes of slow breathing exercise. Breathing exercises were explained and the results of the latest research on slow breathing and its impact on human mood were discussed. Many of these studies reveal that breathing exercises contribute to the improvement of mood and well-being and the reduction of symptoms of tension and anxiety, which translates into better functioning of a person in the work environment, including an increase in his efficiency and job satisfaction. From the company's point of view, this, in turn, means lower costs resulting from errors made by employees.

11

Three-dimensional numerical study of the behavior of thermoelectric and mechanical coupling during spark plasma sintering of a polycrystalline material

Kriba Abdelmalek, Mechighel Farid

Archive of Mechanical Engineering

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2023

|

LXX, nr 4

497--529

EN

Spark plasma sintering (SPS) is a promising modern technology that sinters a powder, whether it is ceramic or metallic, transforming it into a solid. This technique applies both mechanical pressure and a pulsed direct electric current simultaneously. This study presents a three-dimensional (3D) numerical investigation of the thermoelectric (thermal and electric current density fields) and mechanical (strain-stress and displacement fields) couplings during the SPS process of two powders: alumina (ceramic) and copper (metallic). The ANSYS software was employed to solve the conservation equations for energy, electric potential, and mechanical equilibrium simultaneously. Initially, the numerical findings regarding the thermoelectric and mechanical coupling phenomena observed in the alumina and copper specimens were compared with existing numerical and experimental results from the literature. Subsequently, a comprehensive analysis was conducted to examine the influence of current intensity and applied pressure on the aforementioned coupling behavior within the SPS device. The aim was to verify and clarify specific experimental values associated with these parameters, as reported in the literature, and identify the optimal values of applied pressure (5 MPa for alumina and 8.72 MPa for copper) and electric current (1000 A for alumina and 500 A for copper) to achieve a more homogeneous material.

12

Applying elvie - tool for psychosocial risk assessment: results of a case study

Moraru Roland-Iosif, Posyłek Mirosław

System Safety : Human - Technical Facility - Environment

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2022

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Vol. 4, nr 1

245-256

EN

About half of European workers believe that stress is common in their workplace and that it is the cause of about half of all lost working days. In Europe, 25% of workers report suffering from work stress all the time or most of their working time, with a similar percentage reporting that stress adversely affects their health. Estimates of costs borne by employers and society are considerable, amounting to tens of billions of euros at European level. Considering the exponential increase in the last decade of the impact of occupational stress and the direct implications on the health and well-being of workers, coupled with the low level of attention paid to this risk by employers and labor inspectorates in Romania, this paper aimed at developing a company-level research to validate the applicability of a specific psychosocial risk assessment tool. The preliminary results obtained confirmed the need to increase the real attention paid to this component of the health status of workers - and implicitly of enterprises - allowing the substantiation of a plan of measures designed to minimize psychosocial risks in the investigated company.

13

Bandwidth and power enhancement in the MEMS-based piezoelectric energy harvester using magnetic tip mass

Anand Ashutosh, Pal Srikanta, Kundu Sudip

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2022

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Vol. 70, nr 1

art. no. e137509

EN

In this paper, the performance and frequency bandwidth of the piezoelectric energy harvester (PZEH) is improved by introducing two permanent magnets attached to the proof mass of a dual beam structure. Both magnets are in the vicinity of each other and attached in such a way to proof mass of a dual beam so that they create a magnetic field around each other. The generated magnetic field develops a repulsive force between the magnets, which improves electrical output and enhances the bandwidth of the harvester. The simple rectangular cantilever structure with and without magnetic tip mass has a frequency bandwidth of 4 Hz and 4.5 Hz, respectively. The proposed structure generates a peak voltage of 20 V at a frequency of 114.51 Hz at an excitation acceleration of 1 g (g= 9.8 m/s2 ). The peak output power of a proposed structure is 25.5 µW. The operational frequency range of a proposed dual beam cantilever with a magnetic tip mass of 30 mT is from 102.51 Hz to 120.51 Hz, i.e., 18 Hz. The operational frequency range of a dual beam cantilever without magnetic tip mass is from 104.18 Hz to 118.18 Hz, i.e., 14 Hz. There is an improvement of 22.22% in the frequency bandwidth of the proposed dual beam cantilever with a magnetic tip mass of 30 mT than the dual beam without magnetic tip mass.

14

Kompleksowa ocena psychospołecznych warunków pracy kierowców autobusów miejskich i dalekobieżnych

Kapica Łukasz, Najmiec Andrzej, Baka Łukasz

Bezpieczeństwo Pracy : nauka i praktyka

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2022

|

nr 4

18-22

PL

Celem badania przedstawionego w artykule była kompleksowa ocena psychospołecznych warunków pracy kierowców autobusów miejskich i dalekobieżnych. Badaniem objęto 500 kierowców autobusów z 52 różnych firm przewozowych. Narzędziem badawczym był Kopenhaski Kwestionariusz Psychospołecznych Warunków Pracy - COPSOQ II. Analizę przeprowadzono za pomocą testu t-studenta, w którym porównywano średnie wyników kierowców miejskich i dalekobieżnych. Przeprowadzone badanie wykazało, że kierowcy tych pojazdów nie stanowią jednorodnej grupy zawodowej pod kątem występujących zagrożeń psychospołecznych w środowisku pracy. Kierowcy autobusów miejskich mają wyższy poziom wymagań emocjonalnych i tempa pracy, różnią się także od kierowców autobusów dalekobieżnych pod względem warunków organizacji pracy oraz poziomami stresu i dobrostanu.

EN

The aim of the study was to comprehensively assess the psychosocial working conditions of city and long-distance bus drivers. Data were collected among 500 bus drivers from 52 different companies. The variables was measured with the Copenhagen Psychosocial Working Conditions Questionnaire - COPSOQ II. The analysis was carried out using the t-test, which compared the mean results of urban and long-distance drivers. The study showed that city and long-distance bus drivers do not constitute a homogeneous professional group in terms of psychosocial risks in the work environment. City bus drivers have a higher level of emotional demands and work pace, and they also differ from long-distance bus drivers in terms of work organization conditions, stress and well-being.

15

Sleep deficit and managers’ functioning in stressful situations

Kraczla Magdalena

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2021

|

z. 153

259--272

EN

Purpose: The aim of the article is to present the relationship between the daily sleep index of managers and their behaviour in stressful situations. Design/methodology/approach: The article presents an overview of the determinants that influence how people in managerial positions choose to deal with stressful situations, a subject well described in psychological literature. This choice is determined by requirements and organizational context and is developed based on one’s personal experience. This personal propensity should also be considered in the context of sleep deficit, which is not uncommon in today’s organisational cultures as lack of sleep for the sake of increased managerial engagement and activity is not only quite commonplace, but is often glorified as a strategy. Findings: The considerations presented in the article indicate that sleep, as an individual resource of every manager, creates the space that is needed for the implementation of appropriate strategies for coping with stress in the workplace. Research limitations/implications: It is worth performing more research on larger sample groups, who would be differentiated according to organizational level and the decision-making independence of the managers being surveyed. Practical implications: As identified by the research presented here, understanding the relationship between sleep deficit and the behaviour of managers in situations of emotional stress could help to create future working conditions that are beneficial for people’s mental well-being and eliminating the consequences of sleep deficit, which can be dangerous for both individuals and their organisations. Social implications: If organisations factored sleep, understood as the ‘right to get enough sleep’, into the well-being criteria for the benefit of their workforce, including their managers, this could help them in their focus on health as a responsibility they are accountable for in business. Originality/value: The article determined the psycho-physical consequences of sleep deprivation as experienced by contemporary managers and the impact of sleep deficit on their behaviour in stressful circumstances. It has been shown that sleep, as a pivotal element contributing to ‘health and energy’, is a key competence resource of every manager.

16

Opinions of Polish students on the need for the transition to distance learning when facing the global pandemic COVID-19

Puto Agnieszka

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2021

|

z. 150

213--223

EN

Purpose: The objective of the article is to present the condition of Polish universities and trends occurring in distance learning and e-learning. The results of the research conducted among students of Polish universities (N-2226), who were forced to the transition to distance learning from day to day, are presented in the article. Using well-known statistical measures, the correlations between the selected factors have been indicated. The research results on the correlations between the following variables have been presented – the opinions on the need for the transition to distance learning during the pandemic and: • gender, • age, • taking up employment in addition to studying, • an opportunity to study in a separate room. Design/methodology/approach: For the research purposes, a well-known Internet Survey Panel was utilized, which was used to create and manage the surveys as well as to collect the results. The bivariate analysis was used, the objective of which was to determine the empirical relationship between the selected variables. In the research, among others, the following were used: Chi-Square Test for Independence, Phi-Square Test for Independence, Spearman’s rank correlation test. For the data with the responses specified on the ordinal scale in the correlation analysis, Spearman’s rank correlation coefficient was used. Findings: The change in the teaching method which has been experienced in relation to the global pandemic may prove to be a breakthrough and give rise to changes in student education so as to educate the future staff of Industry 4.0 using distance learning. Increasing students’ involvement in the learning process may help them acquire competences useful in their professional life more effectively.

17

Managers’ sleep deficit and stress-coping strategies in contemporary organisations – empirical analysis

Kraczla Magdalena

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2021

|

z. 154

103--119

EN

Purpose: This article seeks to establish whether there is a relationship between the amount of sleep managers have per night and their behaviour when in stressful situations, with particular reference to their choice of coping strategy. Design/methodology/approach: In order to establish the relationship between managers’ sleep duration and their preferred styles of coping with stress, two specific research tools were employed: a Polish adaptation of the Coping Inventory for Stressful Situations (CISS) and the author’s own questionnaire assessing respondents’ daily hours of sleep. Findings: The research showed that as a variable, sleep deficit is not sufficient to explain the behaviour of managers in situations of emotional stress. However, when treated as an independent variable, sleep duration can be used to identify certain interesting behavioural aspects of managers in their professional environment. Research limitations/implications: It is advisable to extend the research to include a larger research group and to distinguish other variables specific to the functioning of people in managerial positions. Practical implications: The lack of any correlation between the extent of sleep deprivation and behaviours aimed at reducing stress may indicate that these behaviours stem more from specific individual factors (e.g. gender or age) and environmental conditions rather than sleep duration. Identifying these conditions and understanding how they can be modified may help to shape the well-being of managers and their employees. Social implications: If organisations factored sleep duration into their work/health equation, this would help direct their efforts towards ensuring the well-being of their managers, which would lead to increased efficiency and performance. Originality/value: Sleep duration does not appear to be a variable that sufficiently explains the coping strategies employed by managers, as these are more influenced by age and gender, for example. The research showed that the group of managers analysed here did not meet the recommended standards of eight hours sleep a day, with sleep duration being heavily dependent on the respondents’ age.

18

Occupational risk analysis in the position of a policeman from Patrol and Intervention Link – a case study

Jagusiak-Kocik Marta

System Safety : Human - Technical Facility - Environment

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2021

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Vol. 3, nr 1

100--107

EN

The work presents the assessment of occupational risk using the Risk Score method for the position of a policeman from the Patrol and Intervention Link. A policeman in this position often works in conditions that are not only hazardous to health, but also to life. It patrols streets, buildings, etc. and participates in many interventions. Therefore, it seems important to raise the topic of occupational risk in such a position. By assessing occupational risk using the Risk Score method, threats were identified with the highest risk and activities that may reduce this risk have been indicated.

19

The Influence of Transport on the Quality of Poultry Meat®

Prejsnar Szymon, Ormian Małgorzata, Topczewska Jadwiga

Postępy Techniki Przetwórstwa Spożywczego

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2021

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nr 2

129--133

EN

The paper presents the impact of ante-mortem turnover on poultry stress and the effects of transport stress on meat quality and safety. Animal transport is one of the most stressful phases of ante-mortem turnover, during which birds are exposed to a number of unfavourable stress factors. During transport, skin damage and bodily injuries occur, carcass quality deteriorates, leading to unfavourable quality changes in the meat (changes in pH, colour, defects in PSE and DFD meat, micro biological and sensory changes) and deaths of birds.

PL

W artykule przedstawiono wpływ obrotu przedubojowego na stres u drobiu oraz skutki stresu transportowego na jakość i bezpieczeństwo mięsa. Transport zwierząt jest jedną z najbardziej stresujących faz obrotu przedubojowego, podczas którego ptaki narażone są na szereg niekorzystnych czynników stresowych. Podczas transportu dochodzi do uszkodzeń skóry i urazów ciała, pogorszenia jakości tuszek prowadzących do niekorzystnych zmian jakościowych mięsa (zmian pH, barwy, powstawania wad mięsa PSE i DFD, zmian mikrobiologiczknych i sensorycznych) a także padnięć ptaków.

20

Stress relaxation phenomena in polymeric orthodontic ligatures

Milewski Grzegorz

Engineering of Biomaterials

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2021

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Vol. 24, no. 162

2--6

EN

Elastomeric products are applied in orthodontics mainly as elastic ligatures or chains and have become an alternative to wire ligation made of titanium alloy or stainless steel. Despite their popularity among the dentists and undoubtful advantages, some essential warnings are being raised regarding the degree of load loss. This relaxation phenomenon seems to be a dominant feature in the time-dependent behaviour of those elements in orthodontic procedures, such as dentition corrections or teeth extrusions. The aim of the paper was to examine and analyse the rheological properties of biocompatible orthodontic elastomeric ligatures. Five different polymeric orthodontic ligatures were examined in the following experiments: a simple relaxation test, relaxation simulating orthodontic extrusion and the two-steps relaxation process, which stands for so-called ‘secondary tightening’, resulting in the increase of the orthodontic force. The results of the relaxation experiments proved that among various descriptions of that phenomenon, the power-law descriptions fit the best time-dependent behaviour during orthodontic procedures. Power-law models give the most intensive initial relaxation, which is characteristic for elastomeric ligatures. The obtained results and analyses allow precise control of the treatment progress in the orthodontic extrusion procedure.