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Wyszukujesz frazę "Marcinkowski, B." wg kryterium: Wszystkie pola


Wyświetlanie 1-11 z 11
Tytuł:
A new stratigraphic position of some Early Pleistocene deposits in central Poland
Autorzy:
Bujak, Ł.
Woronko, B.
Winter, H.
Marcinkowski, B.
Werner, T.
Stachowicz-Rybka, R.
Żarski, M.
Woźniak, P. P.
Rosowiecka, O.
Powiązania:
https://bibliotekanauki.pl/articles/2060173.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Late Miocene
Early Pliocene
Early Pleistocene
pollen analysis
palaeomagnetism
mineralogy
Central Poland
Opis:
A new borehole in Rożce (SW Mazovian Lowland) drilled in 2012, combined with a wide variety of research methods (palaeomagnetism, palynological analysis, studies of plant macroremains and textural features of deposits) shed new light on the age and stratigraphic position of the Early Pleistocene deposits, formerly assigned as the Lower Pleistocene. The study focuses on the deposits from 50.7-104.0 m depth, between glacial till of the Nidanian Glaciation (ca. 0.9 Ma) and the Poznań Clays (ca. 5.322 Ma). The deposits situated directly underneath the till (50.7-60.2 m) are related to the Nidanian Glaciation and show a reversed polarity and correlate with the end of the Matuyama Epoch. The deposits from 60.2-104.0 m depth were accumulated during the Early Pliocene, i.e. approximately 5.332-4.6 million years ago. They appear to correlate with the middle part of the Gilbert Palaeomagnetic Epoch and thus they are considerably older than previously thought. The cored section indicates a stratigraphic gap of about 3.5 Ma from the Lower Pliocene to the first advance of the Scandinavian ice sheets into Poland, which are thought to have occurred in the early Middle Pleistocene. The analysed deposits accumulated under variable climatic conditions showing two periods with significant aridity alternated with two periods of increased humidity. Deposits of the arid periods contain no pollen, butaeolian sand quartz grains are found. During periods of more humid climate the area was covered by various types of mixed forest.
Źródło:
Geological Quarterly; 2016, 60, 1; 238--251
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stratigraphy and palaeoenvironment of Stajna Cave (southern Poland) with regard to habitation of the site by Neanderthals
Autorzy:
Żarski, M.
Winter, H.
Nadachowski, A.
Urbanowski, M.
Socha, P.
Kenig, K.
Marcinkowski, B.
Krzemińska, E.
Stefaniak, K.
Nowaczewska, W.
Marciszak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2060379.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Stajnia Cave
Neanderthal
Vistulian
palaeoenvironment
Częstochowa Upland
Opis:
The Stajnia Cave is one of the most important archaeological sites due to the finds of the first remains of Neanderthals in Poland, and several tens of thousands of flint artefacts from the Middle Palaeolithic. Based on geological, geochemical, palaeobotanical, palaeozoological, archaeological and isotope analyses, coupled with absolute age determinations (OSL, U-Th and C14), 15 lithostratigraphic layers were distinguished and palaeoenvironmental conditions during the sedimentation of these beds were determined. The cave loams accumulated through weathering, aeolian and fluvial processes. Their age may be correlated with an interval from the Early Glacial to the Late Pleniglacial of the Visulian (Weichselian) Glaciation. Archaeological relics related to the Neanderthals have been discovered in layer D with an absolute age of about 52,000–45,000 years BP and correlated with MIS 3 – the Middle Plenivistulian (Interplenivistulian). Climate oscillations in the Vistulian are reflected by the type of the sediments and their physical-chemical features, allowing determining warmer interstadial and colder stadial periods. Generally, the climate was cold, characteristic of tundra areas with a typical vegetation and fauna, and with the mean temperature of the warmest month not exceeding 12°C. Based on multi-proxy studies it can be concluded that from layer E1 upwards, the climate conditions became progressively drier. At that time, the climate was cold with continental features enhancing tundra domination. This conclusion is confirmed by palaeontological investigations and the record of stable oxygen isotopes in the teeth of reindeer. The studies have also indicated seasonal migration of reindeer on the tundra that surrounded the cave. Probably, short-term slight climate warmings occurred during the Middle Plenivistulian (Interplenivistulian).
Źródło:
Geological Quarterly; 2017, 61, 2; 350--369
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nanostructure of bovine pericardium treated with trypsin
Autorzy:
Turek, A.
Marcinkowski, A.
Trzebicka, B.
Cwalina, B.
Dzierżewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/285856.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nanostructure
bovine pericardium (BP)
collagen fibers
trypsin
Opis:
Various methods of xenogeneic tissues stabilization have been proposed for the purpose of preparing many tissue-derived biomaterials. One of the most important treatments that may lead to obtaining the good-quality tissue biomaterials seems to be decellularization of such tissues. This process may contribute to the reduction of the most frequent failures resulting from the tissues stabilization. The aim of this work was to determine nanostructure of trypsin-treated bovine pericardium, using atomic force microscopy (AFM). The treatment of bovine pericardium with trypsin in EDTA solution resulted in non significant changes in tissue’s morphology. Demonstrated AFM studies of these tissues revealed no failures on the fibers’ surface in the nanoscale. Thus, our results confirm the expec-tation that decellularization may be considered as one of the most promising methods of the allogeneic and xenogeneic tissues stabilization.
Źródło:
Engineering of Biomaterials; 2009, 12, no. 89-91; 30-32
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological studies of tissues stabilized by glutaraldehyde and tannic acid
Autorzy:
Turek, B.
Marcinkowski, A.
Cwalina, B.
Nożyński, J.
Dzierżewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/286147.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
glutaraldehyde
tannic acid
porcine pericardium
microstructure
nanostructure
Opis:
Despite the disadvantages of glutaraldehyde (GA)-stabilization of tissues, it is the method most often used for xenogeneic tissues preparation. Nowadays, partial elimination of drawbacks of this method is achieved by using GA in the mixture with other crosslinking reagents, which completes the stabilization effects and acts synergistically. The aim of this work was to determine microstructure and nanostructure of porcine pericardium stabilized by GA and tannic acid (TA). The microstructure was examined by optical microscopy and the nanostructure by atomic force microscopy (AFM). Different results on the level of micro- and nanostructure were observed. No essential changes in the tissue morphology after crosslinking with GA and TA were observed under optical microscope, but significant morphological differences were revealed in AFM studies.
Źródło:
Engineering of Biomaterials; 2009, 12, no. 89-91; 32-34
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Psychosocial factors and health status of employees at the Poznan University of Medical Sciences
Autorzy:
Ziemska, B.
Klimberg, A.
Marcinkowski, J.T.
Powiązania:
https://bibliotekanauki.pl/articles/49911.pdf
Data publikacji:
2013
Wydawca:
Instytut Medycyny Wsi
Opis:
Introduction: New opportunities in the labour market, competition in services and globalization have contributed to the increase in load factors in the psychosocial work environment. Availability, readiness to help, work with the sick, the suffering patient – night shifts, overtime, workaholic (as a new form of addiction), and bullying – are becoming more pronounced causes of stress, fatigue and burnout in medicine. Thus, difficult working conditions are largely the cause of unhealthy lifestyles in the medical professions and foster the development of various types of addiction and physical illness. The negative effects of psychosocial factors – in the form of immune disorders, increased incidence of mental and somatic diseases, and metabolic and hormonal disorders – more often cause increase absence through sickness and the shortening of working life. Objective: The main aim of the presented study was to provide results concerning the health state of employees of the Poznan University of Medical Sciences (PUMS), and also to analyze relations between selected psychosocial risks factors and the state of health of PUMS employees. Material and methods: The results of research conducted in 2009–2010 which covered 2,468 employees of the PUMS and the results of studies using an anonymous own questionnaire survey, evaluating exposure to psychosocial factors, which included the 1,096th members of staff of the PUMS. Results: There was a clear effect of psychosocial risk factors for health workers. The greatest burden of these factors was observed among workers with higher education, mostly doctors. This occupational group also worked in several places of work more often than other employees of the university. These workers often complained of chronic fatigue, recurrent respiratory infections, hypertension, sleep disorders, neurotic disorders and depression. The complaints quite often diagnosed were immune disease, allergies, skin diseases, gastrointestinal diseases, and disorders of carbohydrate and lipid metabolism, which clearly intensified under stress. The clearest negative impact of psychosocial factors on the health of the workers were observed in those a with higher education, employed at several jobs, and complained about poor work organization. Conclusions: 1) It is necessary to implement prevention programs for the staff of the PUMS, aimed at the primary and secondary negative impact of psychosocial factors. 2) Psychological counseling is advisable for employees. 3) It is essential that the issue of voice training, and interpersonal communication techniques to teach and control the schedule of classes, in order to reduce the workload, and encourage physical activity and other forms of relaxation. 4) It is advisable to periodically check on the work conditions and organization of work to help eliminate stressors in the work environment.
Źródło:
Annals of Agricultural and Environmental Medicine; 2013, 20, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dysfunctions in B2B relations with a supplier in the supply chain
Dysfunkcje w relacjach B2B z dostawcą w łańcuchu dostaw
Autorzy:
Marcinkowski, Jakub Mateusz
Kutzner, Iwona Małgorzata
Bożydaj-Jankowska, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/582817.pdf
Data publikacji:
2019
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
dysfunctions
B2B
supply chain
pharmaceutical supply chain
relations
dysfunkcje
łańcuch dostaw
łańcuch dostaw branży farmaceutycznej
relacje
Opis:
The main goal of the article is to attempt to identify the way to analyse dysfunctions in B2B relations with a supplier in the supply chain. The subject of the analysis is the relationship between a supplier producing a food supplement and a customer (a consignee) in the pharmaceutical industry supply chain. The customer is a pharmaceutical corporation in which the supply chain department is responsible for contacts with suppliers. The article aims to answer the question whether and if so, what kind of dysfunctions occur in B2B relations in the supply chain and how can they be characterized? The dysfunctions indicated by the authors: transport and storage, administrative and legal as well as communication are an innovative approach to the presented issue. The ability to eliminate or at least minimize individual forms of the dysfunctions shapes the impact on mutual relations, which are characterized by the uneven dependence, the more so when they manifest themselves in the long-term perspective.
Zasadniczym celem artykułu jest próba wskazania sposobu analizy dysfunkcji w relacjach B2B z dostawcą w łańcuchu dostaw. Przedmiotem analizy jest relacja między jednym z dostawców, wytwarzającym suplement diety, i odbiorcą w łańcuchu dostaw branży farmaceutycznej. Odbiorcą jest korporacja farmaceutyczna, w której za kontakt z dostawcami odpowiada dział ds. łańcucha dostaw. W artykule podjęto się próby odpowiedzi na pytanie czy, a jeśli tak to jakie dysfunkcje w relacjach B2B z dostawcą w łańcuchu dostaw mogą zostać scharakteryzowane. Wskazane przez autorów dysfunkcje transportowo-magazynowe, administracyjno-prawne oraz komunikacyjne stanowią o nowatorskim podejściu do prezentowanego zagadnienia. Umiejętność eliminacji lub co najmniej minimalizacji tych trzech dysfunkcji przyczynia się do wpływu na relacje wzajemne, cechujące się nierównomierną zależnością, tym bardziej gdy przejawiają się w charakterze długookresowym.
Źródło:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2019, 63, 7; 256-270
1899-3192
Pojawia się w:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Huntington’ disease – imbalance of amino acid levels in plasma of patients and mutation carriers
Autorzy:
Gruber, B.M.
Klaczkow, G.
Jaworska, M.
Krzyszton-Russjan, J.
Anuszewska, E.L.
Zielonka, D.
Klimberg, A.
Marcinkowski, J.T.
Powiązania:
https://bibliotekanauki.pl/articles/50964.pdf
Data publikacji:
2013
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2013, 20, 4
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Are students prone to depression and suicidal thoughts? Assessment of the risk of depression in university students from rural and urban areas
Autorzy:
Mojs, E.
Warchol-Biedermann, K.
Glowacka, M.D.
Strzelecki, W.
Ziemska, B.
Marcinkowski, J.T.
Powiązania:
https://bibliotekanauki.pl/articles/49903.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2012, 19, 4
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of heat pumps in rapeseed oil production
Zastosowanie pomp ciepła w produkcji oleju rzepakowego
Autorzy:
Łaska-Zieja, B.
Adamczyk, F.
Marcinkowski, D.
Golimowski, W.
Kołodziej, M.
Szczurko, K.
Powiązania:
https://bibliotekanauki.pl/articles/334789.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
heat pump
rapeseed oil
rapeseed
oil extraction
pompa ciepła
olej rzepakowy
rzepak
tłoczenie oleju
Opis:
The production of rapeseed oil requires a lot of energy. Before being pressed, seeds are conditioned, i.e. heated up to the process temperature for the whole mass. Then, as a result of pressing the extracted oil has a higher temperature compared to the ambient temperature. The objective of the study was to assess the application of heat pumps to reduce the energy consumption of the vegetable oil production process. The article analyses the results of the industrial experiment in which a heat pump was employed to cool down oil and heat up rapeseeds before pressing. As part of B+R project No INNOTECHK2/IN2/5/181835/NCBR/13, a prototype system was constructed with a capacity of 1.5 Mg of oil per hour. The research shows that the return on investment in the heat pump is maximum 2 months. Profit from heating seeds with heat obtained from oil cooling is about PLN 760,000 per annum in the analysed case.
Produkcja oleju rzepakowego wymaga dużych nakładów energii. Przed tłoczeniem nasiona są poddawane kondycjonowaniu, czyli podgrzewaniu w całej masie do temperatury procesowej. Następnie na skutek tłoczenia pozyskiwany jest olej o temperaturze wyższej niż temperatura otoczenia. Celem badań była ocena zastosowania pompy ciepła do obniżenia energochłonności procesu produkcji oleju roślinnego. W artykule przedstawiono wyniki doświadczenia wykonane w skali przemysłowej, gdzie zastosowano pompę ciepła do jednoczesnego schładzania oleju i grzania nasion rzepaku przed tłoczeniem. W ramach realizacji projektu B+R nr umowy INNOTECH-K2/IN2/5/181835/NCBR/13 zbudowano instalację prototypową o wydajności 1,5 Mg oleju na godzinę. Z wykonanych badań wynika, że zwrot inwestycji w pompę ciepła to okres nie dłuższy niż 2 miesiące. Zysk z podgrzewania nasion ciepłem pozyskanym ze schładzania oleju to około 760 tys. PLN rocznie w badanym przypadku.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2018, 63, 3; 24-28
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing physical activity and sedentary lifestyle behaviours for children and adolescents living in a district of Poland. What are the key determinants for improving health?
Autorzy:
Wojtyla-Buciora, P.
Stawinska-Witoszynska, B.
Wojtyla, K.
Klimberg, A.
Wojtyla, C.
Wojtyla, A.
Samolczyk-Wanyura, D.
Marcinkowski, J.T.
Powiązania:
https://bibliotekanauki.pl/articles/49737.pdf
Data publikacji:
2014
Wydawca:
Instytut Medycyny Wsi
Opis:
Introduction. Adequate levels of physical activity throughout an individual’s life ensure an optimal state of health. Only 30% of adolescents and 10% of adults perform sufficient physical activity to facilitate proper physical, psychological/mental and emotional development. Objective. Determining physical activity behaviour in children and adolescents through surveying the opinions of school pupils and parents, in order to lend support for optimised educational programmes designed to promote healthy lifestyle behaviour, as well as establishing consistent answers. Materials and Methods. A randomised survey was conducted on two groups of n=1100 pupil subjects, each attending elementary or secondary school, with the former in Classes 5 and 6, whereas the latter were aged between 16–19 years old; in both instances parents were also included in the survey. All subjects came from the Kalisz District in western-central Poland, and were divided into those living in the city of Kalisz and those in the surrounding rural areas. Results. It was found that 87%, 96% and 89% of elementary, middle and secondary school pupils, respectively, participated in Physical Education (PE) lessons. The numbers of pupils who daily, or almost daily, spent time on a computer, were 52%, 60% and 70%, respectively, for elementary, middle and secondary schools, and likewise 70%, 62% and 48% for watching TV. Conclusions; It is vital that education programmes with a focus on a healthy lifestyle are introduced and targeted at teenagers in order to promote physical activity during the crucial time of the body’s development. The period of maturing into adulthood is particularly crucial for acquiring the right knowledge, convictions, skills and attitudes that help shape a pro-healthy lifestyle in later years.
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:
Nutrition-related health behaviours and prevalence of overweight and obesity among Polish children and adolescents
Autorzy:
Wojtyla-Buciora, P.
Stawinska-Witoszynska, B.
Klimberg, A.
Wojtyla, A.
Gozdziewska, M.
Wojtyla, K.
Piatek, J.
Wojtyla, C.
Ignys, I.
Marcinkowski, J.T.
Powiązania:
https://bibliotekanauki.pl/articles/51457.pdf
Data publikacji:
2013
Wydawca:
Instytut Medycyny Wsi
Tematy:
human nutrition
healthy behaviour
prevalence
overweight
obesity
Polska
child
adolescent
environmental factor
Opis:
Introduction. An adequate mode of nutrition is among the most important environmental factors affecting the development of Man and maintenance of a good health status. An improper selection of nutrients and irregular consumption of meals may lead to overweight and obesity. Objective. The characteristics of health behaviours of the examined population of schoolchildren, with consideration of nutrition and body weight disorders. A comparison of the opinions of schoolchildren and their parents concerning health behaviours. Development of guidelines for educational programmes carried out in the place of residence of the population of schoolchildren and their parents. Materials and method. The survey covered a randomised group of schoolchildren attending elementary and secondary schools in the Kalisz Province and province of the city of Kalisz. The study was conducted in May and June 2009, in a randomly selected representative group of 1,100 boys and girls from classes V and VI of elementary schools, and 1,100 secondary school adolescents aged 16–19 and their parents. The studies of schoolchildren attending elementary and secondary schools were compared with the all-Polish studies of junior high school adolescents in the school year 2006–2007. Results. The respondents most often consumed 3–4 meals; however, as many as 26% of junior high school adolescents and 27% of secondary school adolescents admitted that they consume only one meal daily. The schoolchildren show inadequate nutritional habits concerning an insufficient consumption of fruits, vegetables and fish, in favour of high calorific meals and sweet snacks and drinks. Parents improperly assess the body weight of their children and perceive them as slimmer, which is not confirmed by the BMI value for age and gender. Conclusions. Systematic monitoring and analysis of changes in the health behaviours of adolescents should be a basis for planning health education and promotion programmes. Educational programmes concerning various aspects of health should be implemented in an organized and complementary way, directed not only at schools, but also at entire families and local communities. Knowledge, beliefs, skills and attitudes towards health acquired during the period of adolescence decide about life style in adulthood.
Źródło:
Annals of Agricultural and Environmental Medicine; 2013, 20, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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