Professional drivers’ fatigue as a problem of the modern era

ObjectiveAll around the world numerous studies have been carried out and indicated that 20–50% of commercial vehicle accidents occur because of fatigue. Professional drivers represent an important category of drivers who are present in traffic on a daily basis transporting passengers or goods and their responsibility is at a very high level. These drivers are most exposed to the impact of fatigue. The review of the literature has provided three main factors which can influence the onset of fatigue: sleep factors, work factors, health factors. The main aim of this study was to determine the influence of the three main factors of fatigue between bus and truck drivers in the Republic of Serbia.MethodsThe survey has been conducted among bus and truck drivers who are employed in transportation companies across the Republic of Serbia. The research consists of collecting and analyzing bus and truck drivers’ answers according to the above mentioned factors which influence the occurrence of fatigue.ResultsIn this study we have found that circadian rhythm, sleep and work factors have an impact on drivers’ fatigue. On the other side, time of going to sleep has no impact on the quality of sleep and on fatigue. The results show that if the drivers work over the legal limit, they are 3 times more likely to sleep less than 6 h in 24 h and if they sleep less than 6 h, it is likely that the poor quality of their sleep will be 8 times higher. The poor quality of sleep reduces driver performance, and therefore increases the risk of accidents.Conclusions2 of 3 investigated factors have an impact on the occurrence of fatigue. The third factor, health factor, should be examined in more detail, and other elements should be analysed in order to determine their influence on the fatigue.     

Psychological ethical climate,leader–member exchange and commitment to superior customer value: influencing salespeople’s unethical intent and sales performance

In today’s competitive environment, salespeople are challenged with creating customer value in an ethical manner while meeting performance goals. Sales supervisors play a critical role in ensuring that this challenge is met. This research examines the roles of psychological ethical climate and leader–member exchange (LMX) in encouraging salespeople’s commitment to providing superior customer value, reducing their unethical intentions and improving sales performance. Results indicate that business-to-business salespeople’s psychological ethical climate perceptions influence their perceived relationship with their sales supervisor (i.e. LMX relationship) as well as their commitment to providing superior customer value. LMX also directly influences commitment to providing superior customer value, which in turn affects salespeople’s unethical intent and quota performance. Theoretical and managerial implications based on the study’s findings are provided, as well as directions for future research.     

Commitment in romantic relationships as a function of partners’ encoding of important couple-related memories

The purpose of the present study was to investigate how significant couple-related events are encoded in the episodic memory of each partner of a romantic relationship and how they relate to each of these partners’ level of commitment in an independent and additive fashion. Each partner of a couple reported a significant couple-related memory and rated their level of need satisfaction experienced during the event of the memory. In addition, each partner was shown his/her partner’s memory and also rated their own level of need satisfaction for this event. Results showed that partners need satisfaction ratings of their own memory positively predicted their own commitment to the relationship directly (for women) as well as through their need satisfaction generally experienced in the relationship (for men). In addition, men’s need satisfaction ratings of their own memory were associated with women’s commitment while controlling for women’s need satisfaction ratings of men’s memory, but no such cross-partner effects were found for women. Overall, the findings shed light on an initial understanding of how a person’s own memory of an event can impact another person’s attitudes even when taking into account this other person’s memory encoding of that same event.     

Troubles musculosquelettiques,pratique instrumentale et ressentis des musiciens d’orchestre professionnels en confinement dû à la COVID-19

IntroductionProfessional orchestra musicians frequently suffer from musculoskeletal disorders related to their working conditions. In the spring of 2020, the lockdown and the interruption of their professional activities because of the COVID-19 pandemic could have presented an opportunity for them to recuperate but could also have increased their professional uncertainty and been a source of negative emotions.ObjectiveThe first objective is to evaluate the evolution of musicians’ musculoskeletal disorders in relation to the interruption of their professional activities due to COVID-19. The second is to examine the impact of professional uncertainty caused by the pandemic on their instrument practice as a function of the emotions it generated.MethodA questionnaire concerning instrument practice and musculoskeletal disorders was completed by 439 French orchestra musicians in 2019 (period of professional activity). During lockdown (April 2020), a second questionnaire measuring these variables as well as professional uncertainty, emotions, emotional exhaustion, and the lockdown experience was completed by 172 musicians.ResultsInstrument practice and musculoskeletal disorders decreased between the periods of activity and lockdown. Professional uncertainty during lockdown correlated with negative emotions. Emotional exhaustion mediated the relations between uncertainty and the effort perceived when practicing one's instrument on the one hand and the pleasure experienced during practice on the other.ConclusionFor orchestra musicians in lockdown, uncertainty was related to negative emotions. Playing their instrument required more effort and was not associated with well-being, emphasizing the difficulties regarding the resumption of their professional activity in conditions which would limit the risk of injury.