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Abstract

The aim of the study is to compare flexible pavement design lifespans and the main factors which create their values for a standard structure and one with an anti-fatigue course AF at different parameter values of pavement and its load, relevant to their design processes. Depending on the mixture used for the anti-fatigue course or the course thickness, durability improvement of the pavement (compared to the durability of a standard structure) can be obtained by extending the design lifespan of the asphalt base course or by extending the design lifespan of the AF course. On sections with predominantly slow traffic, the lifespan decreases significantly compared to sections with typical vehicle speed – the relative decrease is greater if anti-fatigue course is applied.

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Authors and Affiliations

M. Nagórska
R. Nagórski
K. Błażejowski
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Abstract

This paper presents the results of research on the admixture of other rock fragments in the granodiorite aggregate (two types of hornfels) produced in Łażany II quarry. It discusses the impact of these components on the selected chemical and mechanical properties important for the use of the aggregate in road construction. Analysed granodiorite grit is a high-class construction material suitable for bituminous mixtures. Its quality is verified in accordance with the PN-EN 13043 standard. The admixture of hornfels in aggregate composition is a consequence of the natural occuring this rock in the Łażany II granodiorite deposit in the Strzegom-Sobótka massif. As there is not selective exploitation of the deposit an extracted raw material is not separated during processing As a result, the aggregate, composed predominantly of granodiorite, comprises variable admixture of hornfels. Tests of properties, such as water absorption, resistance to freezing, resistance to fragmentation, crushing strength, carried out on grain populations of various petrographic types separated from the general samples, exhibit that the presence of hornfels in the aggregate has a beneficial effect, particularly on the mechanical parameters of the produced aggregate. Moreover, two varieties of hornfels differ in terms of some chemical properties (affinity with bitumen, presence of sulphides). These features may affect the durability of the aggregate in the wearing course which is directly influenced by the exterior conditions typical for road pavements.
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Authors and Affiliations

Bartłomiej Grzesik
1
ORCID: ORCID

  1. Silesian University of Technology, Gliwice, Poland
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Abstract

This study aims to explore the effects of age across adult groups on selected aspects of language learning. To achieve the aim, a study was conducted at the Open University of University of Warsaw. It focuses on reasons for taking up learning, relative importance of individual skills, major difficulties, individual goals, emotions and self-assessed ability to learn. The assumption that adults represent a single age group is questioned and the results are interpreted in terms of practical implications for course design.

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Authors and Affiliations

Agata Klimczak-Pawlak
Sylwia Kossakowska-Pisarek
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Abstract

Coursing is a canine sport discipline invented for sighthounds. The dogs chase the mechanically operated lure on an open area at the track that consists of straight lines as well as turns. Thus, the dogs must rely mainly on their sight in order to chase the lure and to compete.
Whippets are the most popular sighthound breed in Poland and more and more dogs practice lure coursing on professional level. Several ocular disorders are known or presumed to be inherited in Whippets, so we decided to check how often they occur amongst competing dogs and if they have any impact on the results during competitions.
Forty-five regularly competing Whippets underwent complete ophthalmic examination, including evaluation of menace response, pupillary light reflex and dazzle reflex, biomicroscopic examination conducted before and after dilating pupils with topical tropicamide and fundus examination with indirect ophthalmoscopy. Refractive state of each eye was assessed via streak retinoscopy.
Ocular abnormalities were identified in 24 dogs (53.3%). The most common finding was vitreous degeneration identified in 9 dogs (20%), five dogs presented multiple lesions. There were no statistically significant differences regarding sex, age, and ranking points between the dogs with and without lesions.
However, some of the identified lesions are likely to progress, so we postulate that the ophthalmological examination should receive more attention in sport Whippets, to check if it has any impact on competing dogs at more advanced age.
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Bibliography

1. Act of 15 January 2015 on the protection of animals used for scientific or educational purposes, art 1.2 (5), Dz.U.2018.0.1207 https://isap.sejm.gov.pl/isap.nsf/download. xsp/WDU20150000266/U/D20150266Lj.pdf (Accessed on 3 February 2023)
2. .Act of 13 October 1995 on hunting law, Dz. U. 1995 Nr 147 poz. 713 https://isap.sejm.gov.pl/isap.nsf/download.xsp/WDU19951470713/U/D19950713Lj.pdf (Accessed on 3 February 2023)
3. Balicki I, Goleman M, Balicka A (2021) Ocular Abnormalities in Polish Hunting Dogs. Plos One 5; 16(11): e0258636
4. Bishop PN, Holmes DF, Kadler KE, Mcleod D, Bos KJ (2014) Age-related changes on the surface of vitreous collagen fibrils. Investig Oph-thalmol Vis Sci 45: 1041-1046
5. Coursing Polish Cup Results, 2021 https://coursing24.eu/ cupResultsPublic/2 (Accessed on 5 January 2023).
6. Crasta M, Arteaga K, Barachetti L, Guandalini A (2022) A multicenter retrospective evaluation of the prevalence of known and presumed heredi-tary eye diseases in Lagotto Romagnolo dog breed within a referral population in Italy (2012-2020). Vet Ophthalmol 25: 426-433
7. Day G, Powers M, Gyes N, Plummer L (2015) Visual Disorders in Agility Dogs with Jumping Problems. http://www. awe-somepaws.us/wp-content/uploads/2015/04/caninevision-project.pdf (Accessed on 3 February 2023)
8. de Oliveira JK, Bortolini M, Schaller M, Schuchmann RK, Moore BA, Montiani-Ferreira F (2020) The ophthalmic health and refractive state of working dogs in South Brazil. Open Vet J 10: 22-30. ECVO Manual: Breeds, 2021 https://www.ecvo.eu/media/ whippet.pdf (Accessed on 3 February 2023)
9. FCI International Guidelines for Lure Coursing Judges. www.fci.be (Accessed on 3 February 2023) Guandalini A, Di Girolamo N, Corvi R, Santillo D, Andreani V, Pinzo B (2017) Epidemiology of ocular disorders presumed to be inherited in three small Italian dog breeds in Italy. Vet Ophthalmol 21: 524-529. Hodowle – Whippety w Polsce (2022) http://www.whippety. topcharty.net/hodowle.php (Accessed on 11 November 2022)
10. Karamatic S, Goode R, Bageswaran N, Willet CE, Samaha G, Fergusion R, Mazrier H, Wade CM (2022) Genome-Wide Association Analysis for Chronic Superficial Keratitis in the Australian Racing Greyhound. Genes 13: 1328.
11. Kaukonen M, Lohi H (2018) Clinical and Genetic Characterization of Canine Vitreous Degeneration. ARVO Annual Meeting, Honolulu, Hawaii. Invest Ophthalmol Vis Sci 59: 6042.
12. Krishnan H, Diehl K, Stefanovski D, Aguirre GD (2019) Vitreous degeneration and associated ocular abnormalities in the dog. Vet Ophthalmol 23: 219-224.
13. Kubai MA, Bentley E, Miller PE, Mutti DO, Murphy CJ (2008) Refractive states of eyes and association between ametropia and breed in dogs. Amer J Vet Res 69: 946-951.
14. Lynch GL (2007) Ophtalmic examination findings in a group of retired racing Greyhounds. Vet Ophthalmol 10: 363-367.
15. Murphy CJ, Zodnik K, Mannis MJ (1997) Myopia and Refractive Error in Dogs. Investig Ophthalmol Vis Sci 33: 2459-2463.
16. Palmer SV, Gomes FE, McArt JA (2021) Ophtalmic disorders in a reffereal population of seven breeds of brachycephalic dogs: 970 cases (2008-2017). J Am Vet Med Assoc 259: 1318-1324.
17. Pont TR, Matas Riera M, Newton R, Donaldson D (2016) Corneal and anterior segment foreign body trauma in dogs: a review of 218 cases. Vet Ophthalmol 19: 386-397.
18. Somma AT, Moreno JC, Sato MT, Rodrigues BD, Bacellar-Galdino M, Occelli LM, Petersen-Jones SM, Montiani-Ferreira F (2017) Characteriza-tion of a novel form of progressive retinal atrophy in Whippet dogs: a clinical, electroretinographic, and breeding study. Vet Ophthalmol 20: 450-459.
19. Vitreous Degeneration in Whippets (2021) https://www.akcchf.org/research/research-portfolio/0011.html (Accessed on 9 January 2023)
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Authors and Affiliations

K. Miazga
1 2
J Tomkowicz
3
J Wilczak
4
A. Cywińska
5

  1. Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland
  2. Municipal Zoological Garden in Warsaw, Ratuszowa 1/3, 03‑461 Warsaw, Poland
  3. Veterinary Ophtalmology Center “EyeVet”, Chałupnicza 67, 51-503 Wrocław, Poland
  4. Department of Physiology, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland
  5. Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Torun, Lwowska 1, 87-100, Torun, Poland
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Abstract

There are only very few studies on the anatomy of the deep brachial artery — DBA (arteria profunda brachii), both regarding its course, branching pattern and contribution to the cubital rete. Most of the textbooks are based on data which remain unchanged for years. The aim of this article was to summarize the current knowledge on this vessel, based on the anatomical and clinical studies and other sources available including also own cadaveric study. We tried to present also some controversies regarded to the nomenclature of the branches of the DBA.
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Bibliography

1. Standring S.: Gray’s Anatomy. The Anatomical Basis of Clinical Practice. Churchill Livingstone Elsevier 2008. ISBN 978-0-8089-2371-8.
2. Spodnik J.H.: Polsko angielsko łacińskie mianownictwo anatomiczne. Edra, Urban & Partner, Wrocław 2017. ISBN 978-83-65625-53-3.
3. Aleksandrowicz R., Gołąb B., Narkiewicz O.: Mianownictwo anatomiczne — wydanie V. PZWL Warszawa 1989. ISBN 83-200-1311-9.
4. Kahn C.I., MacNeil M., Fanola C.L., Whitney E.R.: Complex arterial patterning in an anatomical donor. Translational Research in Anatomy. 2018 Sept; 12: 11–19; https://doi.org/10.1016/j.tria.2018.06.001
5. Żytkowski A., Tubbs R.S., Iwanaga J., Clarke E., Polguj M., Wysiadecki G.: Anatomical normality and variability: Historical perspective and methodological consideration. Translational Research in Anatomy. 2021 Jun; 23: 100105. https://doi.org/10.1016/j.tria.2020.100105
6. Tubbs R.S., Parmar A., Noordeh N., Rogers C., Rogers N., Loukas M., Shoja M.M., Cohen Gadol A.A.: Surgical anatomy of the radial nerve and profunda brachii artery within the triangular interval. Ital J Anat Embryol. 2008 Jul–Sep; 113 (3): 129–134. PMID: 19205584.
7. Menck J., Döbler A., Döhler J.R.: Vascularization of the humerus. Langenbecks Arch Chir. 1997; 382 (3): 123–127. PMID: 9324609.
8. Casoli V., Kostopoulos E., Pélissier P., Caix P., Martin D., Baudet J.: The middle collateral artery: anatomic basis for the “extreme” lateral arm flap. Surg Radiol Anat. 2004 Jun; 26 (3): 172–177. https://doi.org/10.1007/s00276-003-0206-y. Epub 2004 Jan 17. PMID: 14730394.
9. Katsaros J., Schusterman M., Beppu M., Banis J.C. Jr, Acland R.D.: The lateral upper arm flap: anatomy and clinical applications. Ann Plast Surg. 1984 Jun; 12 (6): 489–500. https://doi.org/10.1097/00000637-198406000-00001. PMID: 6465806.
10. Hammer H., Bugyi I.: Free transfer of a lateral upper arm flap. Handchir Mikrochir Plast Chir. 1988 Jan; 20 (1): 20–26. PMID: 2895050.
11. Wenig B.L.: The lateral arm free flap for head and neck reconstruction. Otolaryngol Head Neck Surg. 1993 Jul; 109 (1): 116–119. https://doi.org/10.1177/019459989310900121. PMID: 8336957.
12. Lim A.Y., Pereira B.P., Kumar V.P.: The long head of the triceps brachii as a free functioning muscle transfer. Plast Reconstr Surg. 2001 Jun; 107 (7): 1746–1752. https://doi.org/10.1097/00006534-200106000-00016. PMID: 11391194.
13. Piquilloud G., Villani F., Casoli V.: The medial head of the triceps brachii. Anatomy and blood supply of a new muscular free flap: the medial triceps free flap. Surg Radiol Anat. 2011 Jul; 33 (5): 415–420. https://doi.org/10.1007/s00276-010-0739-9. Epub 2010 Oct 26. PMID: 20976453.
14. Naveen K., Jyothsna P., Nayak S.B., Mohandas R.K., Swamy R.S., Deepthinath R., Shetty S.D.: Variant origin of an arterial trunk from axillary artery continuing as profunda brachii artery—a unique arterial variation in the axilla and its clinical implications. Ethiop J Health Sci. 2014 Jan; 24 (1): 93–96. https://doi.org/10.4314/ejhs.v24i1.13. PMID: 24591805.
15. Aastha, Jain A., Kumar M.S.: An unusual variation of axillary artery: a case report. J Clin Diagn Res. 2015 Jan; 9 (1): AD05–7. https://doi.org/10.7860/JCDR/2015/11680.5477. Epub 2015 Jan 1. PMID: 25737968.
16. Celik H.H., Aldur M.M., Tunali S., Ozdemir M.B., Aktekin M.: Multiple variations of the deep artery of arm: double deep artery of arm and deep artery of arm with the superior ulnar collateral artery. A case report. Morphologie. 2004 Dec; 88 (283): 188–190. https://doi.org/10.1016/s1286-0115(04)98147-7. PMID: 15693422.
17. Vitale N., Lucarelli K., Di Bari N., Milano A.D.: Anomalous origin of a grafted left internal mammary artery from the deep brachial artery. Eur Heart J. 2021 Mar 21; 42 (12): 1182. https://doi.org/10.1093/eurheartj/ehab015
18. Iwanaga J., Singh V., Ohtsuka A., et al.: Acknowledging the use of human cadaveric tissues in research papers: Recommendations from anatomical journal editors. Clinical Anat. 2021; 2–4. https://doi.org/10.1002/ca.23671
19. Walocha J.A., Szczepański W., Miodoński A.J., Gorczyca J., Skrzat J., Bereza T., Ceranowicz P., Lorkowski J., Stachura J.: Application of acrylic emulsion Liquitex R (Binney and Smith) for the preparation of injection specimens and immunohistochemical studies — an observation. Folia Morphol. 2003; 62 (2): 157–161.
20. Crocco J.A.: The Classic Collector’s Edition Gray’s Anatomy. Bounty Books, New York 1977. ISBN 0-517-223651.
21. Panagouli E., Tsaraklis A., Gazouli I., Anagnostopoulou S., Venieratos D.: A rare variation of the axillary artery combined contralaterally with an unusual high origin of a superficial ulnar artery: description, review of the literature and embryological analysis. Ital J Anat Embryol. 2009 Oct–Dec; 114 (4): 145–156. PMID: 20578671.
22. Clarke E., Mazurek A., Radek M., Żytkowski A., Twardokęs W., Polguj M., Wysiadecki G.: Superficial brachial artery — A case report with commentaries on the classification. Trans Res in Anat. 2021; 23: 100112. https://doi.org/10.1016/j.tria.2021.100112
23. Yücel A.H.: Unilateral variation of the arterial pattern of the human upper extremity with a muscle variation of the hand. Acta Med Okayama. 1999 Apr; 53 (2): 61–65. https://doi.org/10.18926/AMO/31629. PMID: 10358720
24. Cavdar S., Zeybek A., Bayramiçli M.: Rare variation of the axillary artery. Clin Anat 2000; 13 (1): 66–68. https://doi.org/10.1002/(SICI)1098-2353(2000)13:166::AID-CA8>3.0.CO;2-M.
25. Dalin L., Jingqiang Y., Kun Z., Yunhui C.: Surgical treatment of deep brachial artery aneurysm. Ann Vasc Surg. 2011 Oct; 25 (7): 983.e13–6. https://doi.org/10.1016/j.avsg.2011.05.006.
26. Griffin L., Garland S.J., Ivanova T., Hughson R.L.: Blood flow in the triceps brachii muscle in humans during sustained submaximal isometric contractions. Eur J Appl Physiol. 2001 May; 84 (5): 432–437. https://doi.org/10.1007/s004210100397. PMID: 11417431
27. de Paula R.C., Erthal R., Fernandes R.M.P., Babinski M.A., Silva J.G., Chagas C.A.A.: Alomalous origin of the deep brachial artery (profunda brachii) observed in bilateral arms: case report. J Vasc Bras. 2013; 12 (1): 53–56.
28. Osiak K., Elnazir P., Mazurek A., Pasternak A.: Prevalence of the persistent median artery in patients undergoing surgical open carpal tunnel release: A case series. Trans Res in Anat; 2021; 23: 100113. https://doi.org/10.1016/j.tria.2021.100113
29. Rodriguez-Niedenführ M., Burton G.J., Deu J., Sañudo J.R.: Development of the arterial pattern in the upper limb of staged human embryos: normal development and anatomic variations. J Anat 2001; 199 (4): 407–417. PMID: 11693301.
30. Dubreuil-Chambardel L.: Variations des Arteres du Membre Superieur. Paris: Masson et Cie, 1926.
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Authors and Affiliations

Wojciech Przybycień
1
Michał Zarzecki
1
Agata Musiał
1
Paweł Depukat
1
Bartłomiej Kruszyna
1
Agata Mazurek
1
Julia Jaszczyńska
1
Kinga Glądys
1
Ewa Walocha
2
Ewa Mizia
1
Grzegorz Wysiadecki
3
Jerzy Walocha
1

  1. Department of Anatomy, Jagiellonian University Medical College, Kraków, Poland
  2. Department of Clinical Nursing, Institute of Nursing and Obstetrics, Jagiellonian University Medical College, Kraków, Poland
  3. Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Łódź, Łódź, Poland
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Abstract

The paper presents a new method of calculating the mixing length of pollutants, based on the coefficient of the degree of concentrations levelling. Two models have been used: of Bielski and of Boczar of advective transport of pollutants with transverse dispersion. A method of determining the coefficient a,, in Bielski's formula for rectangular or other concentration distribution of pollutants in the initial cross-section has been given. The differences which will occur when determining using any of these methods the mixing length and the concentration distribution on the width of water-course are analysed. It has been noticed, that the differences are due to the different method used when deriving the formula (9) and (11). It has been found, that in order to shorten the mixing length the pollutants should be disposed, as far as possible, near the river axis and also in such a way as to make the formed zone of inflow of pollutants, of the width 2L, as large as possible.
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Authors and Affiliations

Andrzej Bielski
Agnieszka Gońka
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Abstract

Introduction: Trauma is one of the leading causes of death in the European Union. The European Trauma Course (ETC) is a training course that focuses on administering aid to trauma patients in a Hospital’s Emergency Department by creating an effective and well-organized trauma team. The purpose of the study is to analyze how the ETC training is evaluated by its participants and whether it is tailored to local needs.

Materials and Methodology: The study includes eight courses conducted between 2010 and 2015, involving 109 medical professionals. Participants were given questionnaires where they could evaluate the various aspects of the course and comment on each of them, using a four-level scale. Finally, 78 surveys were qualified for the study.

Results: The exercises were very highly rated (average 3.79 points), mainly for their interesting scenarios and station preparation. Equally well-evaluated was the short and concise method of instruction. The lowest ranked aspect was the course fee (2.41 points). There were oft en negative comments about the use of English during the training (lectures and manuals).

Discussion: The opinions of Polish students were similar to those of ETC participants in other European countries. There are many interesting advantages of workshop scenarios, while the downside is the time constraint. Nevertheless, the ETC has been very successful. High ratings and positive feedback affirm the high demand for such courses in Poland.

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Authors and Affiliations

Kaja Gąska
Grzegorz Cebula
Grzegorz Danielczok
Michał Nowakowski
Piotr Kolęda
Janusz Andres
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Abstract

Road construction relies on natural material exploitation and it is necessary to find new ways of reducing its negative environmental impact. Simultaneously, number of tyres placed on Croatian (and world) market is constantly growing and the need for waste tyres management will begin to increase due to the wear and tear of tyres in use at the moment. This paper presents a review of latest international and domestic researches on waste rubber application in road construction with special emphasize on Croatian researches within this topic. Preliminary results of ongoing research on waste rubber application in cement bound mixtures are also presented.
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Authors and Affiliations

Ivana Barišić
1
Matija Zvonarić
1
Ivanka Netinger Grubeša
2
Sanja Šurdonja
3

  1. Department for Geotechnics, Road Construction and Geodesy, Faculty of Civil Engineering and Architecture Osijek, University of Osijek, Vladimira Preloga 3, Osijek, Croatia
  2. Department for Materials and Constructions, Faculty of Civil Engineering and Architecture Osijek, University of Osijek, Vladimira Preloga 3, Osijek, Croatia
  3. University of Rijeka, Faculty of Civil Engineering, Croatia
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Abstract

Life history is a term usually assigned in the history of historiography to the Italian school of microhistory. In fact, it is a concept typical for the natural sciences in the case of which it is a framework focused on studies of life history strategies as well as life cycles. Life history analysis has become the subject of numerous studies around the world and has been gaining in popularity in social sciences. The author presents life history as a certain research perspective for historical studies which is capable of incorporating both natural and cultural approaches. He draws inspirations of the life history perspective from recent research into history of modern Poland.
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Authors and Affiliations

Krzysztof Zamorski
1
ORCID: ORCID

  1. Jagiellonian University
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Abstract

O b j e c t i v e s: Patient-centered care (PCC) is associated with better doctor-patient relationships, resulting in a decrease in symptoms, hospitalizations and health costs. However, studies analyzing factors infl uencing patient-centered attitudes show ambiguous results. The purpose was to assess the impact of the Clinical Communication Course (CCC) in Jagiellonian University, Cracow and other factors on Patient-Centered Attitudes (PCA) and Attitude toward Clinical Skills Learning (CSLA).

M e t h o d s: We retrospectively compared Polish-speakers (CCC+, n = 160), English-speakers (CCCen+, n = 55) aft er the CCC and upperclassmen Polish-speakers without it (CCC–, n = 122). Validated questionnaires to measure PCA (Leeds Attitude Toward Concordance II and Patient-Practitioner Orientation Scale (PPOS)) and for CSLA (Communication Skills Attitude Scale with negative subscale (CSAS-N)) were used. The higher the scores, the more PCA, and negative CSLA respectively. Students completed questionnaires and answered questions regarding age, sex, motivation to study (coded as humanitarian — MotHUM, financial — MotFIN, combination — MotMIX) and considered specialization — coded as with more human contact (family medicine, psychiatry, pediatrics — SpecHUM) and others (SpecNHUM). Statistics were prepared in R.

R e s u l t s: CCC+ scored higher in PPOS (2.91 vs. 2.74; p = 0.003) than CCC– and higher in CSAS-N than CCCen+ (31.22 vs. 28.32; p = 0.004). In CCC+ SpecHUM scored lower than SpecNHUM in PPOS (2.65 vs. 2.94, p = 0.012). MotFIN scored higher then MotMIX in PPOS (3.01 vs. 2.7, p = 0.036). Correlations were statistically significant.

C o n c l u s i o n: CCC improved PCA in CCC+. Th ey showed more negative CSLA than CCCen+. Among CCC+, surprisingly, SpecNHUM presented more PCA than SpecHUM as well as MotFIN compared to MotMIX.

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Authors and Affiliations

Michał Pers
Stanisław Górski
Agata Stalmach-Przygoda
Łukasz Balcerzak
Magdalena Szopa
Aleksandra Karabinowska
Jolanta Świerszcz
Ian Perera
Grzegorz Cebula
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Abstract

Data sets gathered continuously in air monitoring systems are never entirely complete. The problem of missing data in monitoring measure series often has to be solved by modeling. A new method of air monitoring data modelling was tested in the paper. Regional diurnal concentration courses (RDCCs) were used as the main source of knowledge of predicted time series during specified days. The paper presents a comparison of predicted and measured diurnal concentration patterns of two frequently used parameters in air monitoring (PM10 and NO2). The analysis was based on hourly time series of these air pollutants collected in a 3-year period at nine monitoring stations in the Lodz Region. It was shown that well determined regional diurnal concentration patterns could be useful to missing data modelling at the specified monitoring site. Improvement of modelling accuracy is possible after modification of modelling results by adding local difference vectors (LDVs), describing the specificity of the monitoring station.
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Authors and Affiliations

Szymon Hoffman
Rafał Jasiński
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Abstract

A methodology is proposed for modifying computer ontologies (CO) for electronic courses (EC) in the field of information and communication technologies (ICT) for universities, schools, extracurricular institutions, as well as for the professional retraining of specialists. The methodology includes the modification of CO by representing the formal ontograph of CO in the form of a graph and using techniques for working with the graph to find optimal paths on the graph using applied software (SW). A genetic algorithm (GA) is involved in the search for the optimal CO. This will lead to the division of the ontograph into branches and the ability to calculate the best trajectory in a certain sense through the EC educational material, taking into account the syllabus. An example is considered for the ICT course syllabus in terms of a specific topic covering the design and use of databases. It is concluded that for the full implementation of this methodology, a tool is needed that automates this procedure for developing EC and/or electronic textbooks. An algorithm and a prototype of software tools are also proposed, integrating machine methods of working with CO and graphs.
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Authors and Affiliations

Nazym Sabitova
1
Yuriy Tikhonov
2
Valerii Lakhno
3
Makulov Kariyrbek
4
Olena Kryvoruchko
5
Vitalyi Chubaievskyi
5
Alona Desiatko
5
Mereke Zhumadilova
4

  1. Eurasian National University, Astana, Kazakhstan
  2. Luhansk Taras Shevchenko National University, Poltava, Ukraine
  3. National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
  4. Yessenov University, Aktau, Kazakhstan
  5. State University of Trade and Economics, Kyiv, Ukraine
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Abstract

Communication noise is classified as one of the pollutions for the current environment. Experimental techniques to measure tire-pavement noise generation from asphalt pavements in the laboratory have been limited. A series of experiments were conducted on six different asphalt mixtures to determine if Purdue University’s Tire-Pavement Test Apparatus (TPTA) could be used to overcome these limitations. The procedure produced samples with low tire-pavement noise; however, the air void contents of the samples were higher than designed. Despite these difficulties, the sample preparation technique and the TPTA testing protocol were shown to offer an effective approach for quick laboratory assessment of tire-pavement noise characteristics of hot mix asphalt pavements at a substantially reduced cost compared to field testing.

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Authors and Affiliations

K.J. Kowalski
T. Dare
R.S. Mcdaniel
J. Olek
R. Bernhard

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