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Wyszukujesz frazę "Lewińska, M." wg kryterium: Autor

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    Wyświetlanie 1-11 z 11
    Tytuł:
    Co-existence of chronic non-communicable diseases and common neoplasms among 2,462 endocrine adult inpatients - a retrospective analysis
    Autorzy:
    Szychta, P.
    Szychta, W.
    Lewinski, A.
    Karbownik-Lewinska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/49764.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2015, 22, 4
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Characteristic of Sound Reflections from Curved Reflective Panels
    Autorzy:
    Szeląg, A.
    Kamisiński, T.
    Lewińska, M.
    Rubacha, J.
    Pilch, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/177712.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    sound reflection
    reflective panels
    sound scattering
    Opis:
    The paper presents the verification of a solution to the narrow sound frequency range problem of flat reflective panels. The analytical, numerical and experimental studies concerned flat panels, panels with curved edges and also semicircular elements. There were compared the characteristics of sound reflected from the studied elements in order to verify which panel will provide effective sound reflection and also scattering in the required band of higher frequencies, i.e. above the upper limit frequency. Based on the conducted analyzes, it was found that among some presented solutions to narrow sound frequency range problem, the array composed of panels with curved edges is the most preferred one. Nevertheless, its reflection characteristic does not meet all of the requirements, therefore, it is necessary to search for another solution of canopy which is effective over a wide frequency range.
    Źródło:
    Archives of Acoustics; 2014, 39, 4; 549-558
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetic and Structural Study of (ZnTe)/Co Core-Shell Nanowires Grown by Molecular Beam Epitaxy
    Autorzy:
    Misiuna, P.
    Dłużewski, P.
    Wojciechowski, T.
    Lewińska, S.
    Ślawska-Waniewska, A.
    Wawro, A.
    Wiater, M.
    Wojtowicz, T.
    Baczewski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1386894.pdf
    Data publikacji:
    2015-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.Km
    75.30.Gw
    75.75.+a
    Opis:
    Arrays of crystalline ZnTe nanowires grown by vapor-liquid-solid mechanism were covered with cobalt in a molecular beam epitaxy system. Magnetic and structural characterization of such core/shell nanowires was performed. Using scanning electron microscopy and transmission electron microscopy it was found that the mean shell thickness of cobalt was about 35% of the nominal deposition thickness. Deposited cobalt had a polycrystalline structure covering the ZnTe nanowires evenly along their length. With the increment of temperature during Co deposition the roughness of the nanowire sidewalls increases. Vibrating sample magnetometry measurements revealed that the magnetization easy-axis direction is perpendicular to the long axis of the nanowires, which is in agreement with theoretical predictions. Oxidation of Co shell does not change the anisotropy direction of such structures, however it increases their coercivity. Exchange bias effect at the interface of cobalt and cobalt oxides suggested by some authors is not responsible for such anisotropy orientation.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 2; 517-519
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transport in GaAs/AlAs/GaAs [111] Tunnel Junctions
    Autorzy:
    Lewińska, S.
    Gryglas-Borysiewicz, M.
    Przybytek, J.
    Baj, M.
    Jouault, B.
    Gennser, U.
    Ouerghi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2047930.pdf
    Data publikacji:
    2011-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.61.-r
    71.20.Nr
    73.23.Hk
    73.63.Hs
    72.10.Di
    85.30.Mn
    73.40.Gk
    Opis:
    Resonant tunneling in single-barrier GaAs/AlAs/GaAs junctions grown in [111] direction was studied for samples with different concentration of silicon δ-doping in AlAs. In the I(V) characteristics, measured at 4 K, two kinds of peaks were observed: related to resonant tunneling via donors states in the barrier, and through X-minimum quantum well subbands. The results are compared to those previously obtained for analogous samples grown along [001] direction. The investigations reveal different symmetry of donor states in both cases.
    Źródło:
    Acta Physica Polonica A; 2011, 119, 5; 606-608
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza porównawcza modeli pracy rzecznika prasowego i oficera wywiadu
    Comparative analysis of the operating models of the press and intelligence officers
    Autorzy:
    Lewińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/120056.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Sztuki Wojennej
    Tematy:
    spokesman
    press officer
    intelligence officer
    rzecznik
    rzecznik prasowy
    oficer wywiadu
    Opis:
    Information resources possessed by the spokesman of a particular institution are decisive factors determining competent and effective execution of his or her activities. Every day’s work of spokesman focuses on collection and skillful selection of information which are being consecutively processed and disseminated. Firstly, the legal acts regulating responsibilities of the spokesmen and public information officers (public affairs officers) in the national defence sector (military press officers/representatives) do not include directives related to the problem of gathering the information by the press teams (public affairs teams). Moreover, there is a lack of specific guide lines on methods, techniques and tools that are applicable in this field of interest. Considering the above mentioned facts, this publication is an attempt to answer the question: can the informational model used by the spokesmen or press officers be integrated with an analogical model of intelligence officer’s or analyst’s?.
    Źródło:
    Zeszyty Naukowe AON; 2013, 2(91); 195-215
    0867-2245
    Pojawia się w:
    Zeszyty Naukowe AON
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recovery and leachability of antimony from mine- and shooting range soils
    Autorzy:
    Lewińska, K.
    Karczewska, A.
    Siepak, M.
    Gałka, B.
    Stysz, M.
    Kaźmierowski, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/960224.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Opis:
    Little is known about the problem of soil contamination with antimony in Poland. Soil samples examined in this study represented two different kinds of Sb-enriched areas: military shooting ranges and historical mining sites in south-western Poland. Total Sb concentrations in soils, determined after fusion with lithium borate, were in the range 17.3-427 mg kg-1. The amounts of Sb recovered as “near total concentrations” were determined after soil digestion with concentrated nitric acid and aqua regia. The study confirmed very low recovery of Sb in soils digested with nitric acid (mean 20.9% of total), significantly lower in mine soils (7.6 ±3.4%) than in shooting range soils (34.2±17.5%). Aqua regia digestion proved to ensure satisfactory recovery of Sb, circa 90% of its total concentrations, independently of the soil origin. Additionally, toxicity characteristic leaching procedure (TCLP), developed by the US EPA, was applied to determine leachability of Sb from soils. The concentrations of Sb in TCLP leachates: 0.001-0.281 mg L-1, remained at a level considered as ecologically safe, but considerably exceeded the threshold values for underground and drinking water. The amounts of Sb leached from the shooting range soils in the TCLP procedure, expressed as percentage of total Sb, were determined as 6.2±2.0%, i.e. significantly higher compared to mine soils (0.74±0.42%). These results should be considered as a premise for further risk- and remediation-oriented examination of shooting range soils.
    Źródło:
    Journal of Elementology; 2017, 22, 1
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Raised concentrations of lipid peroxidation products (LPO) in pregnant women with impaired glucose tolerance
    Autorzy:
    Lewandowski, K.C.
    Stojanovic, N.
    Press, M.
    Tuck, S.
    Lewinski, A.
    Karbownik-Lewinska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/51544.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2014, 21, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Laser scanning in engineering surveying : methods of measurement and modeling of structures
    Autorzy:
    Lenda, G.
    Uznański, A.
    Strach, M.
    Lewińska, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/106755.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    engineering surveying
    terrestrial laser scanning
    mobile laser scanning
    UAV-borne laser scanning
    technika geodezyjna
    skanowanie laserowe naziemne
    skanowanie laserowe mobilne
    skanowanie laserowe
    UAV
    Opis:
    The study is devoted to the uses of laser scanning in the field of engineering surveying. It is currently one of the main trends of research which is developed at the Department of Engineering Surveying and Civil Engineering at the Faculty of Mining Surveying and Environmental Engineering of AGH University of Science and Technology in Krakow. They mainly relate to the issues associated with tower and shell structures, infrastructure of rail routes, or development of digital elevation models for a wide range of applications. These issues often require the use of a variety of scanning techniques (stationary, mobile), but the differences also regard the planning of measurement stations and methods of merging point clouds. Significant differences appear during the analysis of point clouds, especially when modeling objects. Analysis of the selected parameters is already possible basing on ad hoc measurements carried out on a point cloud. However, only the construction of three-dimensional models provides complete information about the shape of structures, allows to perform the analysis in any place and reduces the amount of the stored data. Some structures can be modeled in the form of simple axes, sections, or solids, for others it becomes necessary to create sophisticated models of surfaces, depicting local deformations. The examples selected for the study allow to assess the scope of measurement and office work for a variety of uses related to the issue set forth in the title of this study. Additionally, the latest, forward-looking technology was presented - laser scanning performed from Unmanned Aerial Vehicles (drones). Currently, it is basically in the prototype phase, but it might be expected to make a significant progress in numerous applications in the field of engineering surveying.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2016, 100; 109-130
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soil Pollution by Arsenic within the Allotment Gardens in Zloty Stok
    Zanieczyszczenie arsenem gleb ogródków działkowych w Złotym Stoku
    Autorzy:
    Karczewska, A.
    Lewińska, K.
    Agata, M.
    Krysiak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/389610.pdf
    Data publikacji:
    2010
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    arsen
    rozpuszczalność
    gleby
    Złoty Stok
    ogródki działkowe
    arsenic
    solubility
    soils
    allotment gardens
    Opis:
    The aim of the study was to determine arsenie contents in soils of allotment gardens in the tovvn Zloty Stok, which was formerly the greatest European centre of arsenie industry, as well as to assess ecological risk caused by soil contamination. Two complexes of allotment gardens, where soil samples were collected from the depths of 5-15 cm and 30-40 cm, were investigated. The soils were rich in organic matter and indicated favourable sorption properties. Total contents of arsenie in soils of both garden complexes were extremely high (vvith the mean 232 mg o kg-1 in the surface layers and 281 mg o kg-1 in subsurface layers), and exeeeded by manifold the value of Polish soil quality standard established as 20 mg o kg-1. Actually soluble forms of arsenic, determined by extraction with 0.05 mol o dm-3 (NH4)2S04, proved to be generally Iow, ie 2.0 % of total on average. At the same time, potentially soluble arsenic content, mainly adsorbed on organic matter and iron oxides, determined by extraction with 0.05 mol o dm-1 NH4H2PO4, was relatively high, in the range: 14.0-136 mg o kg-1 (with the mean 17.2 % of total As). The results indicate that certain environmental risk exists and allotment gardens in Zloty Stok should be excluded at least from a home production of vegetables and other edible plants.
    Celem niniejszej pracy było określenie zawartości arsenu w glebach ogródków działkowych Złotego Stoku, niegdyś największego w Europie ośrodka przetwórstwa arsenu, a także ocena zagrożenia ekologicznego wynikającego z zanieczyszczenia gleb tym pierwiastkiem. Badano gleby dwóch zespołów ogrodów, w których pobrano próbki z głębokości 5-15 cm i 30-40 cm. Gleby wykazywały znaczną zawartość materii organicznej oraz korzystne właściwości sorpcyjne. Całkowita zawartość As w glebach obu kompleksów była bardzo duża (średnio 232 mg o kg-1 w warstwie powierzchniowej i 281 mg o kg-1 w podpowierzchniowej) i w obu zespołach ogrodów znacznie przekraczała wartość 20 mg o kg-1 określoną w Rozporządzeniu Ministra Środowiska jako standard jakości gleby. Udział łatwo rozpuszczalnych form arsenu, określanych na podstawie ekstrakcji roztworem 0,05 mol o dm-3 (NEi)2S04, był mały i wynosił średnio 2% całkowitej zawartości arsenu, ale udział form potencjalnie rozpuszczalnych, zwia_zanych z substancją organiczną oraz uwodnionymi tlenkami żelaza, ekstrahowanych 0,05 mol o dm-3 NH4H2PO4, był znaczny, w przedziale: 14.0-136 mg o kg-1 (i średnio odpowiadał 17.2 % całkowitej zawartości As w glebach). Uzyskane wyniki wskazują, że istnieje ryzyko środowiskowe związane z zanieczyszczeniem gleb arsenem i dlatego należy ograniczyć użytkowanie gleb ogrodów działkowych w Złotym Stoku, przynajmniej w zakresie produkcji warzyw i innych roślin na cele konsumpcyjne.
    Źródło:
    Ecological Chemistry and Engineering. A; 2010, 17, 8; 927-933
    1898-6188
    2084-4530
    Pojawia się w:
    Ecological Chemistry and Engineering. A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transport Properties of Disordered Graphene Layers
    Autorzy:
    Gryglas-Borysiewicz, M.
    Jouault, B.
    Tworzydło, J.
    Lewińska, S.
    Strupiński, W.
    Baranowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1791293.pdf
    Data publikacji:
    2009-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.21.Ac
    72.20.Fr
    73.43.Qt
    73.63.Bd
    Opis:
    Samples consisting of a few layers of graphene obtained by thermal decomposition of SiC were studied by means of transport experiments at 4 K and in a magnetic field up to 7 T. Transport data show that the samples have a two-dimensional character. Magnetoresistance has an approximately linear character at high magnetic fields, which has been previously observed in graphite samples, and a negative magnetoresistance, at low magnetic fields. The transverse resistivity $ρ_{xy}$ is nonlinear as a function of B, which can be described using a many-carrier model.
    Źródło:
    Acta Physica Polonica A; 2009, 116, 5; 838-840
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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