750 research outputs found
Polyamide modified with green tea extract for fresh minced meat active packaging applications
No full textNew antioxidant polyamide was prepared by total immersion in active extract for 48 h. Its antioxidant performance was tested using DPPH (IC50 = 270 ± 21 μg/g) and ORAC (1.52 μmol Trolox/g). In vivo study was done using fresh minced meat stored at 4 °C and analysed after 0, 6, 13, 19, 23 days. After 23 days metmyoglobin (MetMbBK = 31.3 ± 2.9% and MetMbAOX = 25.9 ± 0.8%), CIE L*a*b* (a*BK = 15.0 ± 0.4 and a*AOX = 16.6 ± 0.3) and TBARS (MDABK = 0.0060 ± 0.0003 μg/g and MDAAOX = 0.0044 ± 0.0002 μg/g) showed an improvement of meat shelf life. The results showed that this active film protected meat during 23 days. Migration study to food simulants was done by UPLC®-QqQ-MS and UPLC®-ESI-Q-TOF-MSE. A decrease of oligomers migration (for caprolactam n = 3: BK = 0.050 ± 0.004 mg/Kg; AOX = 0.019 ± 0.001 mg/Kg) was found. Industrial relevance: Nowadays, food industry is focused on improving shelf life of products by controlling its lipid oxidation using natural antioxidants. The obtained results let us design a new active packaging based on natural antioxidants for extending the shelf life of fresh minced meat at industrial scale
Health of musically gifted young people in the context of coping with stage fright
No full textThe article discusses the health issues of musically gifted young people, who, due to the nature of music education, are exposed to experiencing stage fright, understood as a specific type of stress that does not necessarily has negative impact on health. The purpose of the research was to answer the questions concerning the level of health of secondary school music students and its determinants. The Functional Health Model developed by Helena Wrona-Polańska (2003) was adopted as a theoretical basis, according to which health is a function of creative coping with stress. Health and stage fright were defined operationally. In the research the standardized interview and questionnaire techniques developed by the author were used. The research group comprised 132 students of secondary music schools. The results have shown that a quarter of students rate their health as bad, whereas more than half experience high level of stage fright and its symptoms, and cope with stage fright by focusing on emotions. Stage fright and emotional style have turned out to be negative predictors of health. The results point to the need of implementing interventions aimed at promoting the health of young people engaged in music education
Overtaking as a particulary dangerous road maneuver
No full textArtykuł dotyczy istotnego z punktu widzenia bezpieczeństwa drogowego manewru wyprzedzania. Podniesiona jest kwestia zapisu definicji wyprzedzania w ujęciu ustawowym w kontekście realiów drogowych. Na konkretnym przykładzie zdarzenia drogowego (wyprzedzanie ciągnika z przyczepą przez samochód osobowy) określono złożoność realizacji manewru wyprzedzania i wskazano nieprawidłowości popełnione przez obydwóch uczestników ruchu drogowego. Ocenione zostało także wieloaspektowe zagadnienie okoliczności wyprzedzania dla pozornie przyjaznych warunków drogowych oraz oceniono zakres naruszenia zasad bezpieczeństwa ruchu drogowego przez uczestników zdarzenia.The article deals with the issue of overtaking maneuver, so frequently executed in real road conditions, which is treated as an essential element of traffic from the point of view of road safety. The question raised here refers to the problem of legal provisions being analyzed in the context of the reality of traffic conditions. The study was illustrated based on an example of a traffic incident - overtaking of a farm tractor with a trailer by a passenger car. The author determined the complexity of the maneuver and pointed out the errors committed by the accident participants. Additionally, the multi-aspect issue of the circumstances of overtaking carried out in favorable road conditions was assessed. In the conclusion the author evaluated the extent to which the traffic rules were violated by the participants of the analyzed is road incident
„Przeciw bezwstydowi w druku i obrazku”. Krakowska cenzura w walce z demoralizacją (1918–1939)
No full text„Against shameless in text and illustration”. Krakow censorship against demoralization (1918–1939)
(Summary)
The following article examines the issues of legal and social reglementation of pornographyfrom the standpoint of the Cracovian press control body between 1918 and 1939. The emphasis is put primarily on the legislative restrictions in the visualand literary presentation of nudeness, as well as sexuality in the text, drawing or reproduction. The author refrains from judging past legislative and juridical solutionsin this field. The article focuses on presenting and classifying the research materials, based on their form, content and the communication. The major aim of the article is thus a historic reconstruction of the Cracovian censorship actions. This concerns the reglementation of the publishing houses’ market which were accused of pornography. Moreover, the author defines the size of this market and indicates the reasons, why the publishing houses were subjectedto restrictions. The activity forms of Cracow municipals and Cracovian censorshipare also categorised in the article. Apart from the legal forms of restrictionssuch as: inspections, routine controls, confi scations and seizures of erotic publications,some other non-formal limitation trials could have been registered. These were initiated by the Catholic Church, various unions, associations as well as citizensthemselves
Shaping zones of quiet in a large enclosure generated by an active noise control system
No full text[EN] Performance of an Active Noise Control (ANC) system strongly depends on sensors and actuators spatial arrangement. It determines both achieved Noise Reduction (NR) levels and spatial distribution of obtained zones of quiet, making it an essential problem. However, if the acoustic field in the enclosure can be appropriately modelled, then optimization algorithms can be employed to find efficient configuration of the ANC system, enhancing its performance according to a formulated cost function and constraints. This paper proposes a complete method for enhancing NR levels and shaping zones of quiet generated with an ANC system by optimization of sensors and actuators arrangement. A Memetic Algorithm (MA) is utilized. The MA itself and its proposed operators are described. The optimization problem formulation is derived and discussed. As a control algorithm, Distributed Multiple Error Filtered-x Least Mean Square (DMEFxLMS) is used. Extensive simulation results are presented for an exemplary real enclosure. The model of the acoustic environment has been obtained by real-world experiments, resulting in identification of 36864 acoustic responses in total. Practically feasible cost function and constraints are evaluated. Advantages and limits of the method are pointed out and discussed.The research reported in this paper has been supported by the National Science Centre, Poland, decision no. DEC-2017/25/B/ST7/02236, and by EU together with Spanish Government under Grant TEC2015-67387-C4-1-R b(MINECO/FEDER).Wrona, S.; Diego Antón, MD.; Pawelczyk, M. (2018). Shaping zones of quiet in a large enclosure generated by an active noise control system. Control Engineering Practice. 80:1-16. https://doi.org/10.1016/j.conengprac.2018.08.004S1168
Avifaunic metaphors in the Polish criminal sociolect (19th century - 1920s)
No full textThe author discusses the etymology of few words used in Polish criminal jargon, from the 19th century until the interwar period. All the analyzed words are zoonimic metaphors. The author focuses on terms derived from the names of birds. In this text the author pesents the lexemes in the oldest Polish sociolectical dictionaries, e.g.: bażant (pheasant), sikora (tit), słowik (nightingale), wrona (crow), kogut (rooster), dzięcioł (woodpecker). The author sets semantic motivations of names and he collates information from several languages for this purpose (he reaches for texts from the turn of the 19th and 20th centuries). Mainly presented words didn’t survive, today they aren’t appearing in non-standard dialect
Syntactically Characterizing Local-to-Global Consistency in ORD-Horn
No full textEstablishing local consistency is one of the most frequently used algorithmic techniques in constraint satisfaction in general and in spatial and temporal reasoning in particular. A collection of constraints is globally consistent if it is completely explicit, that is, every partial solution may be extended to a full solution by greedily assigning values to variables one at a time. We will say that a structure B has local-to-global consistency if establishing local-consistency yields a globally consistent instance of CSP(B) .This paper studies local-to-global consistency for ORD-Horn languages, that is, structures definable over the ordered rationals (ℚ; < ) within the formalism of ORD-Horn clauses. This formalism has attracted a lot of attention and is of crucial importance to spatial and temporal reasoning. We provide a syntactic characterization (in terms of first-order definability) of all ORD-Horn languages enjoying local-to-global consistency.</p
Arthroplasty of the knee six months after surgery, the return to fitness
No full textMaksimczyk-Wrona Grazyna, Ornat Maciej, Tokarski Wojciech, Mess Eleonora. Arthroplasty of the knee six months after surgery, the return to fitness. Journal of Education, Health and Sport. 2019;9(10):280-290. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.3525852
http://ojs.ukw.edu.pl/index.php/johs/article/view/7614
The journal has had 5 points in Ministry of Science and Higher Education parametric evaluation. § 8. 2) and § 12. 1. 2) 22.02.2019.
© The Authors 2019;
This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland
Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike.
(http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.
The authors declare that there is no conflict of interests regarding the publication of this paper.
Received: 15.10.2019. Revised: 28.10.2019. Accepted: 31.10.2019.
Arthroplasty of the knee six months after surgery, the return to fitness
Grazyna Maksimczyk-Wrona1, Maciej Ornat2, Wojciech Tokarski3, Eleonora Mess1
1Department of Oncology and Palliative Care at the Medical University in Wroclaw
2Department of Histology and Embryology, Department of Human Morphology and Embryology, Medical University of Wroclaw
3Branch orthopedic rehabilitation, Kurparkklinik Dr. Lauterbach-Klinik GmbH Heinrich-Mann, Bad Liebenstein
Summary
Degenerative joint disease (osteoarthritis) is a chronic disorder of the musculoskeletal system, which significantly reduces the efficiency of movement and daily functioning difficult. The last twenty years is a huge progress in the diagnosis and treatment of degenerative changes in the knee joint. Currently knee replacement is a fundamental activity in patients with large destructive changes in the joint. Studies carried out in the clinic Trauma Surgery at the University Teaching Hospital in Wroclaw, str. Borowski group of 105 patients. In this study, we observed that there was an improvement of quality of life after surgery, knee replacement, especially in people at a younger age. The pain persisted completely, but reduced in intensity. Women often suffer from arthritis and achieve better results on the knee. It was also shown that younger people better cope with the activities of daily living and have less pain from the knee joints. This suggests that a return to efficiency and improve the functioning of younger people should be achieved in a shorter time than adults, whose efficiency is further limited by the patient's age.
Key words: Arthroplasty; osteoarthritis
Bezpieczeństwo rowerzystów w warunkach niedostatecznej widoczności
No full textThe article refers to the problem of the safety of cyclists riding on a road in the conditions of insufficient visibility. The author presents the relevant legal regulations setting out the rules for cyclists using the roads and the requirements concerning the technical equipment of the bicycles. Three examples of fatal road accidents involving cyclists are presented. The article ends with the conclusions emphasizing the hazard posed by the incidents involving cyclists that results directly from the lack of sufficient lighting of the bicycles.W publikacji podniesiono problem bezpieczeństwa rowerzystów korzystających z jezdni w warunkach niedostatecznej widoczności. Wskazano uwarunkowania prawne regulujące zasady poruszania się rowerzystów oraz ich techniczne wyposażenie. Przytoczono trzy przykłady zdarzeń drogowych z udziałem rowerzystów, które kończyły się dla nich skutkiem śmiertelnym. Końcowym akcentem publikacji są wnioski, które podkreślają jak groźne są zdarzenia z udziałem rowerzystów spowodowane ich niedostatecznym oświetleniem
Outline of history and scientific-didactic activity of the Economic Geography Department at Cracow University of Economics – the 60th anniversary of its foundation
No full textThe author has presented a short history of the Economic Geography Department of the Cracow University of Economics in the years 1958–2018. The scientific and didactic staff, its basic journalistic achievements and the main didactic activity were presented
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