LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 9 von insgesamt 9

Suchoptionen

  1. Artikel ; Online: The spatial distribution of potentially toxic elements in the mountain forest topsoils (the Silesian Beskids, southern Poland)

    Oimahmad Rahmonov / Michał Sobala / Dorota Środek / Dominik Karkosz / Sławomir Pytel / Małgorzata Rahmonov

    Scientific Reports, Vol 14, Iss 1, Pp 1-

    2024  Band 20

    Abstract: Abstract Progressive industrialisation and urbanisation in recent decades have dramatically affected the soil cover and led to significant changes in its properties, which inevitably affect the functioning of other components of the forest ecosystems. ... ...

    Abstract Abstract Progressive industrialisation and urbanisation in recent decades have dramatically affected the soil cover and led to significant changes in its properties, which inevitably affect the functioning of other components of the forest ecosystems. The total content of Pb, Cd, Zn, Fe, Cr, Cu, Ni, As, and Hg was studied in twenty-five plots at different heights in the topsoil (organic and humus horizons) formed from the Carpathian flysch in the area of the Silesian Beskids (Western Carpathians). The aim of this article is to analyse the spatial distribution of potentially toxic elements in the mountain forest topsoil in different types of plant communities and to determine the relationship between altitude and potentially toxic elements contamination. The soils studied are acidic or very acidic, with an average range of 3.8 (H2O) and 2.9 (KCl). Concentrations of the metals Cd, Zn, Fe, Cr, Cu, Ni, and Hg on the plots that were analysed are within the range of permissible standards for forest ecosystems in Poland, while Pb and As exceed the permissible standards for this type of ecosystem. Spearman’s rank correlation coefficient showed a high correlation between Fe–Cr (r(32) = 0.879, Pb-Hg r(32) = 0.772, Ni–Cr r(32) = 0.738, Zn-Cd r(32) = 0.734, and Cu-Hg r(32) = 0.743, and a moderate statistically significant positive correlation between Cu-Pb r(32) = 0.667 and As-Pb r(32) = 0.557. No correlation was found between altitude and the occurrence of potentially toxic elements. The geo-accumulation index (Igeo) index, on the other hand, indicates that Pb, As, and Cd have the highest impact on soil contamination in all study plots: it classifies soils from moderately to strongly polluted. The enrichment factor (EF) obtained for As and Hg indicates significant-to-very high enrichment in all areas studied. The potential ecological risk index (PLI) calculated for the sites indicates the existence of pollution in all areas examined. The highest risk categories (considerable to very high) are associated with cadmium and ...
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 910
    Sprache Englisch
    Erscheinungsdatum 2024-01-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  2. Artikel ; Online: Kształceniowa funkcja wyjazdów turystycznych seniorów i młodzieży

    SŁAWOMIR PYTEL / ROMAN SZKUP

    Ekonomiczne Problemy Turystyki, Vol

    2018  Band 42

    Abstract: The aim of the article was to present the educational function which can be played by tourist activities for seniors and comparing them to tourist activities of academic youth. Apart from the traditional, educational role of tourism, visiting new places, ...

    Abstract The aim of the article was to present the educational function which can be played by tourist activities for seniors and comparing them to tourist activities of academic youth. Apart from the traditional, educational role of tourism, visiting new places, we experience closeness and social integration of the community. The results obtained allow to conclude that the educational function of tourism is more important for seniors than for young people.
    Schlagwörter senior tourism ; youth tourism ; the educational function of tourism ; Social Sciences ; H
    Sprache Englisch
    Erscheinungsdatum 2018-06-01T00:00:00Z
    Verlag Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  3. Artikel ; Online: Migrations of elderly people in the world and in Poland

    Sławomir Pytel / Wioletta Kamińska / Iwona Kiniorska / Patryk Brambert

    European Spatial Research and Policy, Vol 27, Iss 2, Pp 155-

    2020  Band 170

    Abstract: Migrations of seniors in the 21st century accurately reflect the socio-demographic changes in developed countries. Their intensity increases in various parts of the world. In Europe, pensioners from the north move to the region of the Mediterranean Sea. ... ...

    Abstract Migrations of seniors in the 21st century accurately reflect the socio-demographic changes in developed countries. Their intensity increases in various parts of the world. In Europe, pensioners from the north move to the region of the Mediterranean Sea. Seniors from the United States and Canada are attracted to the countries of Central and South America. The goal of this study is to identify the trends in foreign migrations of seniors in selected countries of the world, with special regard to the migration of Polish pensioners. The study shows that contemporary seniors can afford to purchase property abroad and the driving forces for the migration movement include: warm climate, beautiful landscape, and a healthier and slower pace of living at the final destination. However, when it comes to Polish pensioners, the main reason for their migrations is their attempt to improve their economic conditions.
    Schlagwörter pensioners ; migrations of seniors ; directions of migrations of seniors ; causes of migration of seniors ; Social Sciences ; H ; Social sciences (General) ; H1-99
    Thema/Rubrik (Code) 900
    Sprache Englisch
    Erscheinungsdatum 2020-12-01T00:00:00Z
    Verlag Lodz University Press
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  4. Artikel ; Online: Aktywność turystyczna seniorów w Polsce

    Anna Ociepka / Sławomir Pytel

    Ekonomiczne Problemy Turystyki, Vol

    2016  Band 34

    Abstract: The aim of the article is to present the senior citizens’ activity in Poland. The profile of senior tourist as well as programs supporting and facilitating travelling for this age group are going to be introduced. It is going to be found out what the ... ...

    Abstract The aim of the article is to present the senior citizens’ activity in Poland. The profile of senior tourist as well as programs supporting and facilitating travelling for this age group are going to be introduced. It is going to be found out what the seniors’ impact on tourism development is and what the future of this service sector is.
    Schlagwörter Tourist activity ; senior tourism ; Social Sciences ; H
    Sprache Englisch
    Erscheinungsdatum 2016-01-01T00:00:00Z
    Verlag Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  5. Artikel ; Online: Transformation Directions of Brownfields

    Sławomir Pytel / Sławomir Sitek / Marta Chmielewska / Elżbieta Zuzańska-Żyśko / Anna Runge / Julita Markiewicz-Patkowska

    Sustainability, Vol 13, Iss 4, p

    The Case of the Górnośląsko-Zagłębiowska Metropolis

    2021  Band 2075

    Abstract: Brownfields are remnants of the functional and spatial transformations of urban areas in Poland. They are particularly abundant in old industrial districts, based on coal mining and metallurgy. The aim of this study is to identify the transformation ... ...

    Abstract Brownfields are remnants of the functional and spatial transformations of urban areas in Poland. They are particularly abundant in old industrial districts, based on coal mining and metallurgy. The aim of this study is to identify the transformation directions and functional changes of brownfields in the former Upper Silesian Industrial Region in southern Poland, which has evolved into the Górnośląsko-Zagłębiowska Metropolis (GZM) through the process of socio-economic transformation. The study makes use of the χ2 test of independence and Cramer’s V as a post-test, and the method of in-depth interviews. The results indicate that the most popular new functions of post-industrial sites are production and services. When we consider large brownfields such as, in particular, disused mine dumps, dumping sites, settling ponds and workings, the most popular new form of land use is green spaces. Moreover, the study shows that the size of brownfields impacts their new forms of land use.
    Schlagwörter post-industrial sites ; brownfields ; regeneration ; conurbation ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 710
    Sprache Englisch
    Erscheinungsdatum 2021-02-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  6. Artikel ; Online: Reducing bias in risk indices for COVID-19

    Michał Paweł Michalak / Jack Cordes / Agnieszka Kulawik / Sławomir Sitek / Sławomir Pytel / Elżbieta Zuzańska-Żyśko / Radosław Wieczorek

    Geospatial Health, Vol 17, Iss s

    2022  Band 1

    Abstract: Spatiotemporal modelling of infectious diseases such as coronavirus disease 2019 (COVID-19) involves using a variety of epidemiological metrics such as regional proportion of cases and/or regional positivity rates. Although observing changes of these ... ...

    Abstract Spatiotemporal modelling of infectious diseases such as coronavirus disease 2019 (COVID-19) involves using a variety of epidemiological metrics such as regional proportion of cases and/or regional positivity rates. Although observing changes of these indices over time is critical to estimate the regional disease burden, the dynamical properties of these measures, as well as crossrelationships, are usually not systematically given or explained. Here we provide a spatiotemporal framework composed of six commonly used and newly constructed epidemiological metrics and conduct a case study evaluation. We introduce a refined risk estimate that is biased neither by variation in population size nor by the spatial heterogeneity of testing. In particular, the proposed methodology would be useful for unbiased identification of time periods with elevated COVID-19 risk without sensitivity to spatial heterogeneity of neither population nor testing coverage.We offer a case study in Poland that shows improvement over the bias of currently used methods. Our results also provide insights regarding regional prioritisation of testing and the consequences of potential synchronisation of epidemics between regions. The approach should apply to other infectious diseases and other geographical areas.
    Schlagwörter Relative risk ; dynamics ; COVID-19 ; unbiased metrics ; weighting ; Poland ; Geography (General) ; G1-922
    Thema/Rubrik (Code) 910
    Sprache Englisch
    Erscheinungsdatum 2022-01-01T00:00:00Z
    Verlag PAGEPress Publications
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  7. Artikel ; Online: A Model of the Sustainable Management of the Natural Environment in National Parks—A Case Study of National Parks in Poland

    Piotr Oleśniewicz / Sławomir Pytel / Julita Markiewicz-Patkowska / Adam R. Szromek / Soňa Jandová

    Sustainability, Vol 12, Iss 2704, p

    2020  Band 2704

    Abstract: This paper aimed to present a model of natural environment management in national parks in Poland in the context of increased tourist traffic. The research area comprised Polish national parks as they are characterized by barely altered nature, little ... ...

    Abstract This paper aimed to present a model of natural environment management in national parks in Poland in the context of increased tourist traffic. The research area comprised Polish national parks as they are characterized by barely altered nature, little human impact, and undisturbed natural phenomena. The methods involved the observational method, literature analysis and criticism, and the in-depth interview method employed in November 2019. The respondents included national park management staff. The questions were prepared in accordance with the Berlin Declaration principles of sustainable tourism development and were extended with the authors’ own items. The questionnaire contained 17 questions, grouped in four parts: science and documentation; tourism; cooperation and education; environmental threats. The results indicate that in order for actions to prove efficient in a park, a conservation plan should be carefully developed. Its correctness requires monitoring the state of the environment, tourist traffic size and trends, and tourists’ impact on the environment. An important condition for effective tourism management in parks is to increase the competences of the administering bodies and knowledge regarding individuals’ responsibilities. Boards should be able to evaluate and modify conservation plans, spatial development plans, municipality development strategies, and projects for investments within the parks.
    Schlagwörter sustainability ; national park ; management ; tourism ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Thema/Rubrik (Code) 710
    Sprache Englisch
    Erscheinungsdatum 2020-03-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  8. Artikel: Surfactants in Klodnica River (Katowice, Poland). Part II. Quaternary Ammonium Compounds

    Ruman, Marek / Ewa Olkowska / Sławomir Pytel / Żaneta Polkowska

    Ecological Chemistry and Engineering. 2018 June 01, v. 25, no. 2

    2018  

    Abstract: The paper presents methods of determination of analytes of the cation group (alkyl benzyl dimethyl ammonium (BDDA-C12-C16), alkyl trimethyl ammonium (TMA), hexadecyl piridinium (HP)) in surface water and bottom sediment samples. In the sample preparation ...

    Abstract The paper presents methods of determination of analytes of the cation group (alkyl benzyl dimethyl ammonium (BDDA-C12-C16), alkyl trimethyl ammonium (TMA), hexadecyl piridinium (HP)) in surface water and bottom sediment samples. In the sample preparation phase the solid phase extraction (SPE) or accelerated solvent extraction/ultrasound assisted extraction (ASE/UAE)-SPE technique was used and in the identification phase and quantitative determination of analytes phase - ion chromatography technique (combined with a conductivity detector (CD)). The determined concentrations were in the range below the determined method detection limit (MDL) or method quantification limit (MQL) figures up to 0.142 ±0.023 mg/dm3 or 2014 ±10 μg/kg (liquid and solid samples, respectively). Comparing concentrations of individual analytes found in liquid and solid environmental samples we may notice that surfactants containing a shorter alkyl chain in their molecules were found in higher concentrations in liquid samples (hydrophobicity increasing with the chain length).
    Schlagwörter ammonium ; detection limit ; engineering ; hydrophobicity ; ion exchange chromatography ; liquids ; quantitative analysis ; quaternary ammonium compounds ; rivers ; sediments ; solid phase extraction ; solvents ; surface water ; surfactants ; Poland
    Sprache Englisch
    Erscheinungsverlauf 2018-0601
    Umfang p. 229-242.
    Erscheinungsort Sciendo
    Dokumenttyp Artikel
    ZDB-ID 2677585-2
    ISSN 1898-6196
    ISSN 1898-6196
    DOI 10.1515/eces-2018-0015
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  9. Artikel ; Online: Turystyka senioralna w kontekście sytuacji materialnej polskich emerytów

    JULITA MARKIEWICZ-PATKOWSKA / SŁAWOMIR PYTEL / KRZYSZTOF WIDAWSKI / PIOTR OLEŚNIEWICZ

    Ekonomiczne Problemy Turystyki, Vol

    2018  Band 42

    Abstract: The ageing of societies in the developed countries has been observed for many years. In the group of the population boom of years 1946-1955, the population of the retired is growing each day. In the paper, the authors defined the notion of a senior; they ...

    Abstract The ageing of societies in the developed countries has been observed for many years. In the group of the population boom of years 1946-1955, the population of the retired is growing each day. In the paper, the authors defined the notion of a senior; they presented the changing forms of tourist activity undertaken by seniors in various periods of the 21st century in the context of their economic situation. As a conclusion of the performed analyses, one should expect that the conviction od the 21st century seniors with reference to the benefits of active recreation and tourism will translate into the popularisation of the healthy, active lifestyle.
    Schlagwörter seniors ; senior tourism ; economic status ; leisure time ; Social Sciences ; H
    Sprache Englisch
    Erscheinungsdatum 2018-06-01T00:00:00Z
    Verlag Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

Zum Seitenanfang