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    Wyświetlanie 1-5 z 5
    Tytuł:
    Epidemiological assessment of maxillofacial fractures in inhabitants of Lower Silesia, Poland, in 2002-2006 - Treatment of maxillofacial fracture
    Autorzy:
    Parulska, O.
    Dobrzynski, M.
    Bazan, J.
    Calkosinski, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/3318.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    epidemiology
    maxillofacial fracture
    treatment
    fracture
    inhabitant
    Lover Silesia
    Polska
    2002-2006 period
    Opis:
    Introduction and objective. Epidemiological assessment of maxillofacial fractures carried out by a given specialized centre may constitute valuable material for comparison with other regions of Poland and the European Union. This material could help standardize the present methods of treating craniofacial skeleton dislocations, and plan appropriate financial resources both for specialized treatment of such fractures and fractures that require multidisciplinary care. Moreover, the frequency of complicated maxillofacial fractures leading to residual disability and circumstances in which fracture occurred may be useful for the Social Security authorities. Materials and methods. This study is a continuation of research on maxillofacial traumatology carried by the Maxillofacial Department of the Medical University in Wrocław, Lower Silesia. Since 1956, a statistical review of maxillofacial fractures has been kept in 5 or 10-year periods. Statistical analysis of this kind is useful in indentifying the frequency of the phenomenon, taking suitable treatment precautions, verifying treatment methods, and analyzing costs and losses incurred as a result of absence at work. Sociological aspect of such studies includes indicating sources of socially adverse phenomena, i.e. violence or alcohol abuse. The studies were based on clinical documentation of 937 patients, where dependencies between chosen parameters were identified. As a basic statistical analysis of variable interdependence the χ2 test of independence was applied. Conclusions. Lately, there have been more maxillofacial fractures resulting from civilization changes. Simultaneously, there are new treatment methods and significant progress has been made regarding materials that are used in these treatments.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2015, 09, 1
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of dioxin intoxication on the human system and possibilities of limiting its negative effects on the environment and living organisms
    Autorzy:
    Calkosinski, I.
    Rosinczuk-Tonderys, J.
    Bazan, J.
    Dobrzynski, M.
    Bronowicka-Szydelko, A.
    Dzierzba, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/50167.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Medycyny Wsi
    Opis:
    Introduction and objective. Despite the restrictive legal regulations related to the reduction of dioxins emission, their concentration in the environment is still too high. Mainly, this is related to the illegal utilisation of electronic equipment and combustion of wastes, and also to intensified activity and maintenance of ships, especially in developing countries. The most important remaining source in Europe is the metal industry. Studies on the mechanism of impact of dioxins are still being carried out. This review points at new possibilities for limiting the molecular mechanisms of dioxins activity, inter alia, through the application of high doses of tocopherol and acetylsalicylic acid while treating dioxins intoxication. Brief description of the state of knowledge. Apart from the knowledge of dioxins affinity to the aryl hydrocarbon receptor (AhR), the multi-stage radical-form actions and the pro-inflammatory mechanism associated with cyclooxygenase-II enzyme (COX-2) are under intense investigation at the moment. Due to the high affinity of dioxins to animals adipose tissue and their ability to accumulate in it, they can enter the food chain. Furthermore, high dioxin doses can cause poisoning manifested as advanced clinical symptoms, whereas in smaller doses, when cumulated, can cause metabolic changes which are often difficult to associate with their presence. Recently, some serious food contaminations by dioxins have been demonstrated. Sea fish and products from contaminated aqueducts still constitute potential sources of dioxins pollution. Conclusion. According to recent studies, dioxins are present in different concentrations in the environment and cause specific and long-time effects. These effects could be limited by the use of tocopherol and acetylsalicylic acid. Key
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2014, 21, 3
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Influence of Briquetted Synthetic Slags on Slag Regime and Process of Steel Desulphurization
    Ocena wpływu zastosowania brykietowanych żużli syntetycznych na przebieg procesu odsiarczania stali
    Autorzy:
    Socha, L.
    Michalek, K.
    Bažan, J.
    Gryc, K.
    Machovčák, P.
    Opler, A.
    Styrnal, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/351995.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    synthetic slag
    slag regime
    desulphurization
    secondary metallurgy
    steel
    żużel syntetyczny
    odsiarczanie stali
    obróbka pozapiecowa
    stal
    Opis:
    This paper presents the industrial results of evaluation of efficiency of synthetic slags during the treatment of steel at the equipment of the secondary metallurgy under conditions of the steel plant VÍTKOVICE HEAVY MACHINERY a.s. The aim of the heats was to assess the influence of the briquetted and sintered synthetic slags based on AI2O3 aiming the course of the steel desulphurization and slag regime during the production and treatment of steel grade 42CrMo4 with the technology EAF→LF→ VD. Within the plant experiments, basic parameters influencing the steel desulphurization and slag regime were monitored: desulphurization degree, basicity, content of easily reducible oxides, proportion of CaO/AI2O3 and Mannesmann’s index. Obtained results allowed to compare the steel desulphurization and to evaluate the slag regime. It was proved that the synthetic slag presenting the briquetted mixture of secondary corundum raw materials can adequately replace the synthetic slag created from the sintered mixture of natural raw materials.
    W pracy tej przedstawiono przemysłowe wyniki oceny efektywności zastosowania żużli syntetycznych podczas obróbki pozapiecowej stali w zakładzie VÍTKOVlCE HEAVY MACHINERY a.s. Celem badań był a ocena wpływu brykietówanych i spiekanych żużli syntetycznych opartych na AI2O3 - na przebieg odsiarczania stali i żużla podczas produkcji i obróbki stali 42CrMo4. zgodnie z technologią EAF → LF → VD. Podczas eksperymentów w zakładzie, monitorowano podstawowe parametry wpływające na odsiarczania stali i żużla: stopień odsiarczania, zasadowość, zawartość tlenków łatwo redukowałnych, stosunek CaO/AI2O3 oraz indeks Mannesniann’a. Uzyskane wyniki pozwoliły na porównanie stopnia odsiarczania stali w kontekście zastosowanych żużli. Wykazano, że syntetyczny żużel składający się z brykietowanej mieszaniny wtórnego korundu, może zastąpić syntetyczny żużel otrzymywany ze spieku mieszaniny surowców naturalnych.
    Źródło:
    Archives of Metallurgy and Materials; 2014, 59, 2; 809-813
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optyczna metoda rekonstrukcji geometrii zębów – Focus Variation
    Optical method of reconstruction of tooth’s geometry
    Autorzy:
    Burek, J.
    Bazan, A.
    Płodzień, M
    Turek, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/152692.pdf
    Data publikacji:
    2013
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    metrologia
    optyka
    ostrość
    pomiar
    implant
    ząb
    korona
    metrology
    optical
    focus variation
    measurement
    tooth
    crown
    Opis:
    W artykule przedstawiono innowacyjną i niezależną optyczną metodę pomiaru geometrii Focus Variation, jako alternatywę dla aktualnie stosowanych rozwiązań wykorzystywanych w pomiarach biomodeli. Opisana metoda pomiarowa, umożliwia rekonstrukcję obiektów o niewielkich gabarytach i o skomplikowanej geometrii powierzchni. Dokonano analizy dokładności wykonania rekonstrukcji geometrii na przykładzie koron zębów. Uzyskane wyniki w ponad 80 procentach mieszczą się w granicach +-71 μm co świadczy o przydatności metody w zastosowaniach dentystyczno-stomatologicznych.
    This paper describes the principle of operation of the focus variation method used for optical 3D measurements. The goal of investigations was to analyse the quality of surface reconstruction of the tooth crown geometry and the usefulness of the method in the dental industry. The focus variation method combines the small depth of focus of an optical system with vertical scanning to provide topographical and colour information resulting from the variation of focus [5]. Fig. 2 shows the schematic diagram of a measuring system based on the focus variation method. It is possi-ble to measure surface points with high trueness using coordinate measuring machines (CMMs). However, limitation in the scanning speed as well as not accurate enough measurement of freeform surfaces such as fissure lines and interproximal areas make the access of the measuring probe to these places impossible. The measurement inaccuracy is due to the geometric size and shape of the tip of the stylus (probe) [3]. The results of the report (Fig. 5) are satisfactory for modeling so small and complex surfaces which are free crowns of the teeth. The focus variation method introduces new, more accurate scanning capabilities of the premises used in the dental industry.
    Źródło:
    Pomiary Automatyka Kontrola; 2013, R. 59, nr 10, 10; 1133-1135
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An evaluation of anti-social behaviour in children after traumatic brain injury-prospects for improving the quality of life in rehabilitation
    Autorzy:
    Tomaszewski, W.
    Bulinski, L.
    Mirski, A.
    Rasmus, A.
    Kowalczyk, J.
    Bazan, M.
    Pachalska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/51305.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Medycyny Wsi
    Opis:
    Introduction and objective. The aim of the article is to present the consequences of traumatic brain injury in children, associated with general cognition and behavioural disorders, mainly of the anti-social type. Materials and method. A total of 20 school-age children took part in the study – 6 girls and 14 boys; average age of the children – 13.35 years (standard deviation SD = 1.95). The research instruments included an analysis of documentation, a structured clinical interview, MMSE and Frontal Behavioral Inventory (FBInv) with an additional set of 5 supplementary questions directed at the detection of anti-social behaviour. Results. The functioning of the children with traumatic brain injury is severely disrupted because of the presence of cognitive impairment; however, dementia was not manifested. In a significant number of the children with traumatic brain injury, not only frontal syndrome was found, but also the occurrence of anti-social behaviour. The most commonly reported behavioural problems were: disorganization, commonly referred to as laziness, hypersensitivity, and anxiety. The most common types of anti-social behaviours were: impulsivity, physical and verbal aggression, as well as outbursts of anger. Conclusions. The children with traumatic brain injury suffer from cognitive disorders and behavioural problems, especially impulsivity, physical and verbal aggression, increased anxiety, and disorganization. The occurrence of frontal syndrome is related to the development of anti-social behaviour.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2014, 21, 3
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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