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Open access

Marek Rośkowicz and Piotr Leszczyński

Abstract

The paper discusses the results of selected fatigue tests of a motor glider’s insulated spar structure. The results of the experimental tests were used to assess the potential of the strain-gauge method for diagnosing the spar damage involving the unbolting of one of metal fittings in the spar pin. The usefulness of the deformation measurement method in the composite structure diagnostic process was confirmed, while simultaneously drawing attention to the need for conducting a process optimizing the number of sensors and their distribution on a tested object, in the context of the sensitivity of diagnostic signals received.

Open access

Marek Rośkowicz and Piotr Leszczyński

Abstract

The article portrays the results of experimental studies conducted in the field of static strength test of main landing gear of lightweight aircraft as well as in the area of establishing the pneumatic tyre characteristics of main landing gear. The studies were carried out in compliance with methodologies of performing studies for the purposes of solutions implemented in aviation structures. It was stated that static strength tests of landing gear should not be done with the use of shock absorbers, due to the fact that this element, distinguished by high viscoelastic properties, by being statically loaded, is subject to displacements that do not occur during normal operation of the aircraft. Excessive displacements of shock absorber result in the load distribution in other landing gear elements being incompatible with project assumptions, which in turn leads to this strength test being interrupted, bearing in mind significantly lower loads than anticipated. It was also concluded that in order to determine pneumatic tyre characteristics it is not necessary to carry out tests on the whole landing gear strut, because the results obtained in the compression test of the wheel itself with pneumatic tyre are identical as the results acquired during tests conducted in accordance with methodology. Test preparation process with the use of the wheel itself and its realization is less time-consuming, less expensive and does not entail the necessity to build complex test stands.

Open access

Marek Rośkowicz and Piotr Leszczyński

Streszczenie

W artykule zaprezentowano wyniki badań eksperymentalnych wykonywanych w zakresie statycznej próby wytrzymałościowej podwozia głównego samolotu lekkiego i wyznaczenia charakterystyki pneumatyka koła podwozia głównego. Badania były wykonywane zgodnie z metodykami wykonywania testów na potrzeby rozwiązań wprowadzanych do konstrukcji lotniczych. Stwierdzono, że statyczne próby wytrzymałościowe podwozia nie powinny być realizowane z wykorzystaniem amortyzatorów, ponieważ element ten, wykazujący silne właściwości lepkosprężyste, obciążony statycznie ulega przemieszczeniom niespotykanym w normalnej eksploatacji statku powietrznego. Ponadnormatywne przemieszczenia amortyzatora powodują, że rozkład obciążeń w pozostałych elementach podwozia jest niezgodny z założeniami konstrukcyjnymi, co w konsekwencji prowadzi do przerwania próby przy istotnie niższych obciążeniach od zakładanych. Stwierdzono również, że do wyznaczania charakterystyk pneumatyka nie ma potrzeby wykonywania testów na całej goleni podwozia, ponieważ wyniki otrzymywane w próbie ściskania samego koła z pneumatykiem są identyczne jak w próbach prowadzonych zgodnie z metodyką. Proces przygotowania do testów z użyciem samego koła oraz ich realizacja jest mniej czasochłonna i mniej kosztowna oraz dodatkowo nie powoduje konieczności budowania złożonych stanowisk badawczych.

Open access

Piotr Leszczyński, Anna Charuta, Joanna Gotlib, Barbara Kołodziejczak, Magdalena Roszak and Tamara Zacharuk

Abstract

The process of continuing education of paramedics is based on gaining educational credits during five-year educational periods. One of the forms of self-improvement are Internet-based educational programs. The lack of regulations concerning the organizational and technical aspects of e-learning made the authors attempt to analyze the phenomenon. The aim of the article is to present an initial analysis of the role of online educational programs in comparison with other forms of professional training of paramedics. One in three respondents has recently used one of the methods of distance learning. Despite the low awareness of the effectiveness of e-learning, almost 70% of the interviewees expressed a positive opinion about it and over 50% were willing to use such forms in the future. The respondents preferred online trainings in the asynchronous version, containing audio-visual materials and providing the possibility to obtain a certificate issued to the participant after completing the course. The demand for topics in the area of professional training included mainly the fields of Drug Therapy, electrotherapy, electrocardiogram (ECG) evaluation, medical segregation, and help in delivery in pre-hospital conditions. Modern forms of distance learning do not make it possible to acquire practical skills, yet their role in professional training of paramedics is still significant. According to the authors, online educational programs constitute an effective complement to traditional training through the performance of tasks in a mixed form, known as blended-learning.

Open access

Joanna Gotlib, Aleksander Zarzeka, Mariusz Panczyk, Piotr Leszczyński, Lucyna Iwanow, Katarzyna Pietruszewska, Nicole Mazur, Anna Gorzkiewicz, Jarosława Belowska and Łukasz Samoliński

Abstract

Introduction. Since January 1st, 2016, particular groups of nurses and midwives in Poland are allowed to write prescriptions and refer patients to diagnostic procedures without doctors’ involvement.

Aim. The aim of the study was to assess what university students know about the changes that expanded the professional competencies of nurses and midwives.

Material and methods. The study group comprised of 535 students of three different universities. The group was 82% female and the mean age was 23 years (min.=19; max.=58, SD=4.780). Nursing students were the largest group among the study participants (177 individuals which meant 33% of the total), followed by Medicine students (145 individuals, 27% of all), Midwifery (107 persons, 20% of the total), and Public Health (100 persons, 19% of all). As many as 324 respondents (60%) had never participated in any medical law-related courses. A voluntary and anonymous survey containing 39 questions divided into 3 parts: 13 questions about knowledge, 26 statements concerning attitudes using a Likert scale, 8 demographic questions) was used. Obtaining an approval from the University’s Ethical Review Board was not required. Pearson’s chi-square test was used to compare frequency of the correct answers by students of every major. The Kruskal-Wallis rank test with a post-hoc analysis for multiple comparison of mean rank sums, STATISTICA version 12.5 (StatSoft, Inc.), licensed to MUW, α=0.05, were used to calculate the differences in summative points for correct answers.

Results. Nursing students were significantly more likely to choose the correct answers, unlike Medicine or Public Health students (p<0.001), as well as Midwifery students (p<0.002). The answers provided by the students of Medicine, Public Health, and Midwifery were relatively similar.

Conclusions. The knowledge of students of various Polish universities concerning the expansion of professional competencies of nurses and midwives was insufficient and needs to be urgently updated. Learning curricula to be modified not only for students of Nursing and Midwifery but also for other members of therapy team, e.g. physicians and pharmacists as well as specialists in public health.