Abstract Airlines design their initial schedules under the assumption that all resources will be available on time and flights operate as planned. However, some disruptions occur due to mechanical failures unexpected delays of maintenance, making aircraft unavailable for a certain period time. These deviations from plan result in high operational costs addition serious inconveniences experience...

In this paper, an integrated machine scheduling withits due date setting problem has been considered. It is assumed that the machine is subject to some kind of random unavailability. Due dates should be set in an attractive and reliable manner, implying that they should be short and possible to be met. To this end, first, long due dates are penalized in the objective function. Then, for each cu...

One of the major issues in the monitoring and control of manufacturing systems is to determine how to effectively deal with unexpected disruptions (e.g. material unavailability, resource failures, unavailability of operators, rush orders, etc.). Existing approaches and tools offer few concepts that are specific enough and sufficiently generic to help in handling a broad variety of such unexpect...

Persistent Mullerian duct syndrome is a rare form of internal male pseudohermaphroditism, in which Mullerian duct derivatives (uterus and fallopian tubes) are present in a genotypic (46XY) and phenotypic male. Over 150 cases have been reported, mainly from outside the African setting. This article presents an unexpected case encountered in an African setting. Handicaps in the management were un...

This paper considers scheduling problems where the processing of a set of jobs has been scheduled (i.e., planned) to minimize a classical cost objective, under the assumption that the jobs are all available at the start of the planning horizon. Before processing starts, however, the availability of a subset of the jobs is delayed. Therefore, the decision maker needs to adjust the existing sched...

BACKGROUND An unexpected difficult intubation can be very challenging and if it is not managed properly, it may expose the encountered patient to significant risks. The intubation difficulty scale (IDS) has been used as a validated method to evaluate a global degree of intubation difficulty. The aims of this study were to evaluate the prevalence and characteristics of unexpected difficult intub...

The Russian invasion of Ukraine in 2022 raised an enormous wave Internet activism and distributed denial-of-service (DDoS) attacks launched with the help common users across world. In this article, we describe events first days after from perspective cybersecurity incident response team Masaryk University Czech Republic. We observed hundreds intentionally participating DDoS against Russia unive...

Background: Difficulty in management of the airway occurs most frequently in patients who have Mallampati grade III and IV, and other unfavourable airway findings like short neck, restriction in range of motion of the temporomandibular joints and inadequate neck flexion and extension. Because of unavailability of fibreoptic bronchoscopes or inexperience in their use, laryngeal mask airway (LMA)...