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    Wyświetlanie 1-78 z 78
    Tytuł:
    Semiconductor contact layer characterization in a context of hall effect measurements
    Autorzy:
    Kowalewski, Andrzej
    Wróbel, Jarosław
    Boguski, Jacek
    Gorczyca, Kinga
    Martyniuk, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/220890.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    metal contact
    contact layer
    contact resistance
    Hall effect
    resistivity
    van der Pauw method
    MSM structure
    semiconductors’ characterization
    Opis:
    A revision of the standard approach to characterization of thin-semiconductor-layer Hall samples has been proposed. Our results show that simple checking of I(V) curve linearity at room temperature might be insufficient for correct determination of bias conditions of a sample before measurements of Hall effect. It is caused by the nonlinear behaviour of electrical contact layers, which should be treated together with the tested layer a priori as a metal-semiconductor-metal (MSM) structure. Our approach was examined with a Be-doped p-type InAs epitaxial layer, with four gold contacts. Despite using full high-quality photolithography a significant asymmetry in maximum differential resistance (Rd) values and positions relative to zero voltage (or current) value was observed for different contacts. This suggests that such characterization should be performed before each high-precision magneto-transport measurement in order to optimize the bias conditions.
    Źródło:
    Metrology and Measurement Systems; 2019, 26, 1; 109-114
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Baden Culture finds from Goszcza site 1 (Kielnik): new archaeological, anthropological, archaeozoological and archaeobotanical data
    Autorzy:
    Nowak, Maciej
    Wilczyński, Jarosław
    Wróbel, Jarosław
    Kapcia, Magda
    Moskal-del Hoyo, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/52579363.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Neolithic
    Baden culture
    funerary rites
    anthropology
    archaeozoology
    archaeobotany
    Opis:
    In spring 2019, rescue excavations were conducted at Goszcza 1 (Kielnik) site in connection with construction of a dwelling house. As a result, eleven archaeological features of various chronology were identified. The most abundant materials, dating to the Late Classic period of the Baden culture in Lesser Poland (the end of the 4th millennium and the beginning of the 3th millennium BC), were found in four pits. At the bottom of two features (nos 4 and 6) human skeletons were discovered. In the present study, only materials discovered in features attributed to the Baden culture are discussed, including pottery finds, flint artefacts, and fragments of human and animal bones. Macroscopic plant remains coming from three archaeological features have also been investigated.
    Źródło:
    Folia Quaternaria; 2019, 87; 27-58
    0015-573X
    2199-5915
    Pojawia się w:
    Folia Quaternaria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    InAs light-to-heavy hole effective mass ratio determined experimentally from mobility spectrum analysis
    Autorzy:
    Wróbel, Jarosław
    Umana-Membreno, Gilberto A.
    Boguski, Jacek
    Złotnik, Sebastian
    Kowalewski, Andrzej
    Moszczyński, Paweł
    Antoszewski, Jarek
    Faraone, Lorenzo
    Wróbel, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/2204210.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    indium arsenide
    effective masses
    energy band warping
    magnetotransport
    mobility spectrum analysis
    Opis:
    Careful selection of the physical model of the material for a specific doping and selected operating temperatures is a non-trivial task. In numerical simulations that optimize practical devices such as detectors or lasers architecture, this challenge can be very difficult. However, even for such a well-known material as a 5 μm thick layer of indium arsenide on a semiinsulating gallium arsenide substrate, choosing a realistic set of band structure parameters for valence bands is remarkable. Here, the authors test the applicability range of various models of the valence band geometry, using a series of InAs samples with varying levels of p-type doping. Carefully prepared and pretested the van der Pauw geometry samples have been used for magneto-transport data acquisition in the 20-300 K temperature range and magnetic fields up to ±15 T, combined with a mobility spectra analysis. It was shown that in a degenerate statistic regime, temperature trends of mobility for heavy- and light-holes are uncorrelated. It has also been shown that parameters of the valence band effective masses with warping effect inclusion should be used for selected acceptor dopant levels and range of temperatures.
    Źródło:
    Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144567
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-technique characterisation of InAs-on-GaAs wafers with circular defect pattern
    Autorzy:
    Boguski, Jacek
    Wróbel, Jarosław
    Złotnik, Sebastian
    Budner, Bogusław
    Liszewska, Malwina
    Kubiszyn, Łukasz
    Michałowski, Paweł P.
    Ciura, Łukasz
    Moszczyński, Paweł
    Odrzywolski, Sebastian
    Jankiewicz, Bartłomiej
    Wróbel, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/2204219.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    wafer homogeneity
    wafer defect pattern
    surface roughness
    indium arsenide
    beryllium doping
    Opis:
    The article presents the results of diameter mapping for circular-symmetric disturbance of homogeneity of epitaxially grown InAs (100) layers on GaAs substrates. The set of acceptors (beryllium) doped InAs epilayers was studied in order to evaluate the impact of Be doping on the 2-inch InAs-on-GaAs wafers quality. During the initial identification of size and shape of the circular pattern, non-destructive optical techniques were used, showing a 100% difference in average roughness between the wafer centre and its outer part. On the other hand, no volumetric (bulk) differences are detectable using Raman spectroscopy and highresolution X-ray diffraction. The correlation between Be doping level and circular defect pattern surface area has been found.
    Źródło:
    Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144564
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problem intencjonalności działania wychowawczego. Studium teoretyczne
    The Problem of Intentionality of the Upbringing Activity. Theoretical Study
    Autorzy:
    Wróbel, Alina
    Gara, Jarosław
    Żłobicki, Wiktor
    Powiązania:
    https://bibliotekanauki.pl/books/43423378.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Opis:
    W niniejszej pracy przeprowadzone analizy skoncentrowane są na tym wymiarze dyskursu edukacyjnego, którego treścią są określone teorie pedagogiczne/wychowania. Zostały one zbadane w tym zakresie, który dotyczy teoretycznych podstaw działania wychowawczego. Przedmiotem zainteresowań badawczych jest poszukiwanie pedagogicznego sensu działania wychowawczego. Strukturę pracy tworzy pięć rozdziałów. Konkluzja zamykająca niniejszą rozprawę to rekapitulacja dociekań, skoncentrowana na wzmacnianiu relacji istniejącej między teorią i praktyką pedagogiczną oraz poszukiwaniu sensu działania wychowawczego.
    The following analysis is placed in the humanistic and interpretative research tradition, with its interest focused on awareness and various ways of interpreting reality. The analyses which have been made refer to the educational discourse the content of which are precise pedagogical and upbringing theories. They were researched in this scope which refers theoretical foundations of upbringing activity. Thus the presented research was assigned to the following question : How does reference to the category of intentionality change the structure of pedagogical theory and the sense assigned to upbringing activity as a basic element of pedagogical practice ? Searching for the answer to the above questions was performed in stages.
    Dostawca treści:
    Biblioteka Nauki
    Książka
    Tytuł:
    Connexin-dependent intercellular stress signaling in tissue homeostasis and tumor development
    Autorzy:
    Czyż, Jarosław
    Piwowarczyk, Katarzyna
    Paw, Milena
    Luty, Marcin
    Wróbel, Tomasz
    Catapano, Jessica
    Madeja, Zbigniew
    Ryszawy, Damian
    Powiązania:
    https://bibliotekanauki.pl/articles/1038572.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    carcinogenesis
    connexin
    gap junctions
    cellular stress
    tumor
    Opis:
    Cellular stress responses determine tissue development, homeostasis and pathogenesis. Paracrine signaling, exchange of mechanical stimuli and intercellular transfer of small metabolites via connexin-built gap junctional channels are involved in the cellular stress detection and propagation of stress stimuli in multicellular networks. Cellular stress responses are also regulated through the activity of unpaired connexons (hemichannels) and via the intracellular interference of connexins with the cell cycle and pro-apoptotic machinery. Therefore, connexins are considered as multidirectional transmitters of the "outside-in" and "inside-out" stress signaling that are crucial for tissue homeostasis, regeneration and pathology. In particular, the disturbance of connexin function during the multi-stage process of tumor development leads to abnormal reactions of tumor cells to stress stimuli. In this review, we outline the current knowledge on the multidirectional role of connexins in the detection of stress signals. We also discuss the role of connexin-mediated intercellular transmittance of stress signals in tumour promotion, progression and metastatic cascade. Highlights: 1. Connexins and gap junctions protect cells from the microenvironmental stress and are involved in propagation and intracellular processing of stress signals. 2. The quality and quantity of stress stimuli, which may lead to cell adaptation or death by apoptosis, is determined by intrinsic properties of connexins and the cell phenotype. 3. Connexin deficiency increases the resistance of tumor cells to the "outside-in" stress signaling. 4. The connexin-mediated "inside-out" stress signaling participates in tumor cell invasion during the metastatic cascade.
    Źródło:
    Acta Biochimica Polonica; 2017, 64, 3; 377-389
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Na białym szlaku. Zapomniany film o wojnie
    “On the White Trails”: a forgotten film about the war
    Autorzy:
    Hendrykowski, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/923318.pdf
    Data publikacji:
    2019-12-15
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Jarosław Brzozowski
    Andrzej Wróbel
    film poetics
    World War II drama
    tough guys movie
    genre
    narration
    Polish cinema
    practice of film production
    Opis:
    The article is an analytical and interpretative study of behind-the-scenes aspects and the poetics of a little-known feature film titled On the White Trails, directed by Jarosław Brzozowski and Andrzej Wróbel.
    Źródło:
    Images. The International Journal of European Film, Performing Arts and Audiovisual Communication; 2019, 26, 35; 103-115
    1731-450X
    Pojawia się w:
    Images. The International Journal of European Film, Performing Arts and Audiovisual Communication
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Production potential of biodiesel, methane and electricity in the largest steamed rice industry in Rio Grande do Sul, Brazil: case study
    Autorzy:
    Nadaleti, Willian
    Lourenço, Vitor
    Przybyła, Grzegorz
    Kardasz, Piotr
    Wróbel, Radosław
    Dimitrov, Radostin
    Trembacz, Jarosław
    Ivanov, Zdravko
    Powiązania:
    https://bibliotekanauki.pl/articles/1839541.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    biodiesel
    bioenergia
    biopaliwo
    biogaz
    ryż
    bioenergy
    biofuel biogas
    rice
    Opis:
    The potential for energy production from effluents and husks generated in grain processing in the rice parboiling industries in Brazil is capable of promoting energy self-sufficiency in the sector, through the production and use of syngas and biogas. However, the production of methane from residues of the rice parboiling industries is still little explored by academic studies, in general studies on the potential of methane production by this same type of effluent are found in the south of the country, however, the same is not true for the production of biodiesel from rice bran oil. The objective of this study was to determine the production potential of biodiesel, methane and electric energy of the largest parboiled rice industry in Rio Grande do Sul, located in the southern region of the country. According to this study, the rice parboiling industry located in Rio Grande do Sul, Brazil, has a production potential of 1.2-10² m³ /day of biodiesel, 2.93-10 Nm³ /day of methane and 1.89-10⁴ kWh/day of electricity. Despite being a significant and high potential, which may reduce the financial expenses of the industry regarding the purchase of energy from concessionaires, it is not able to promote its energy self-sufficiency. At the same time, it would be necessary to add the energy production potential of the rice husk gasification syngas highlighted in other studiem.
    Źródło:
    Production Engineering Archives; 2021, 27, 2; 130-136
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Production potential of biodiesel, methane and electricity in the largest steamed rice industry in Rio Grande do Sul, Brazil: case study
    Autorzy:
    Nadaleti, Willian
    Lourenço, Vitor
    Przybyła, Grzegorz
    Kardasz, Piotr
    Wróbel, Radosław
    Dimitrov, Radostin
    Trembacz, Jarosław
    Ivanov, Zdravko
    Powiązania:
    https://bibliotekanauki.pl/articles/1839544.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    biodiesel
    bioenergia
    biopaliwo
    biogaz
    ryż
    bioenergy
    biofuel biogas
    rice
    Opis:
    The potential for energy production from effluents and husks generated in grain processing in the rice parboiling industries in Brazil is capable of promoting energy self-sufficiency in the sector, through the production and use of syngas and biogas. However, the production of methane from residues of the rice parboiling industries is still little explored by academic studies, in general studies on the potential of methane production by this same type of effluent are found in the south of the country, however, the same is not true for the production of biodiesel from rice bran oil. The objective of this study was to determine the production potential of biodiesel, methane and electric energy of the largest parboiled rice industry in Rio Grande do Sul, located in the southern region of the country. According to this study, the rice parboiling industry located in Rio Grande do Sul, Brazil, has a production potential of 1.2-10² m³ /day of biodiesel, 2.93-10 Nm³ /day of methane and 1.89-10⁴ kWh/day of electricity. Despite being a significant and high potential, which may reduce the financial expenses of the industry regarding the purchase of energy from concessionaires, it is not able to promote its energy self-sufficiency. At the same time, it would be necessary to add the energy production potential of the rice husk gasification syngas highlighted in other studiem.
    Źródło:
    Production Engineering Archives; 2021, 27, 2; 130-136
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bezpieczeństwo antyterrorystyczne budynków użyteczności publicznej : dobre praktyki i rekomendacje
    Autorzy:
    Stelmach, Jarosław
    Bryczek-Wróbel, Patrycja
    Moch, Natalia
    Kożuszek, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/23944839.pdf
    Data publikacji:
    2022
    Wydawca:
    Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
    Tematy:
    obiekt użyteczności publicznej
    typologia
    administracja publiczna
    zagrożenie terrorystyczne
    zamach terrorystyczny
    środowisko bezpieczeństwa
    bezpieczeństwo obiektu
    public utility facility
    typology
    public administration
    terrorist threat
    terrorist attack
    environmental safety
    objects' safety
    Źródło:
    Przegląd Nauk o Obronności; 2022, 7, 14 Spec.Issue; 1-117
    2450-6869
    Pojawia się w:
    Przegląd Nauk o Obronności
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of lipegfilgrastim on hematopoietic reconstitution and supportive treatment after megachemotherapy with autologous peripheral blood stem cell transplantation in patients with lymphoproliferative malignancies
    Autorzy:
    Frączak, Ewa
    Dybko, Jarosław
    Rybka, Justyna
    Biedroń, Monika
    Dereń-Wagemann, Izabela
    Urbaniak-Kujda, Donata
    Kuliczkowski, Kazimierz
    Wróbel, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1064904.pdf
    Data publikacji:
    2016
    Wydawca:
    Medical Education
    Tematy:
    G-CSF
    auto-PBSCT
    lymphoproliferative malignancies
    Opis:
    Megachemotherapy with autologous peripheral blood stem cell transplantation (auto-PBSCT) is a standard treatment option in patients below 70 years of age with multiple myeloma (MM) as well as with relapsed and refractory lymphomas. Recombinant granulocyte colony-stimulating factors (G-CSF) are commonly used to accelerate bone marrow recovery after chemotherapy and reduce the duration of severe neutropenia. Lipegfilgrastim is a glicopegylated G-CSF with prolonged action registered for adult patients with malignant neoplasms in order to reduce the duration of neutropenia and the incidence of febrile neutropenia (FN). So far, there is not enough data to confirm the effectiveness and safety of this drug in patients with hematological malignancies including those undergoing auto-PBSCT. The aim of this study was to determine the effect of lipegfilgrastim on hematopoietic regeneration and supportive care after auto-PBSCT in patients with lymphoproliferative malignancies. The study population consisted of 30 patients (12 female and 18 male; median age: 50 years ± 13), including 13 patients with MM, 5 with Hodgkin’s lymphoma (HL) and 12 with non-Hodgkin’s lymphoma (nHL). The median number of transplanted CD34+ cells was 3.96 ± 1.56 × 10^6/kg of body mass. On day +1 after auto-PBSCT, the patients received lipegfilgrastim in a single 6 mg subcutaneous injection. The control group consisted of 32 patients (13 female and 19 male; median age: 50 years ± 6.4), including 13 with MM, 8 with HL and 11 with nHL, who received subcutaneous filgrastim in a dose of 5 μg/kg/day from day +1 after transplantation and continued to an absolute neutrophil count (ANC) > 1.5 × 10^9/L. There was no significant difference in the time of regeneration ANC > 0.5 × 10^9/L which was 10.65 ± 1.00 vs. 11.51 ± 2.29 days respectively in the study and control group. Similar observations were noted regarding the duration of febrile neutropenia (2.16 ± 2.22 vs. 1.70 ± 4.17 days; p = 0.998), regeneration of platelets (PLT) > 20 × 10^9/L (12.41 ± 2.41 vs. 13.82 ± 4.48 days; p = 0.233) and demand for transfusion of red blood cells (0.76 ± 1.07 vs. 1.33 ± 2.33 units; p = 0.414) and platelets (11.5 ± 6.9 vs. 19.2 ± 17.7 units; p = 0.08). Different results were observed for the length of hospitalization, which was significantly shorter in the lipegfilgrastim group (16.14 ± 14 vs. 24.46 ± 6.79 days; p = 0.000). Lipegfilgrastim is as effective as filgrastim with regards to the regeneration of the hematopoietic system, duration of febrile neutropenia, demand for transfusion of blood products and significantly reduces hospitalization in patients with lymphoproliferative malignancies after auto-PBSCT.
    Źródło:
    OncoReview; 2016, 6, 2; A66-71
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Posiedzenie Komisji Sprawiedliwości i Praw Człowieka, Komisji Spraw Zagranicznych : 08.07.2008 r.
    Powiązania:
    Rodowód II 2009, nr 18, s. 64-77
    Data publikacji:
    2009
    Tematy:
    Kalisz, Ryszard
    Arent, Iwona
    Bernhard, Antoni
    Gabrel, Dariusz
    Gałażewski, Andrzej
    Iwiński, Tadeusz
    Karski, Karol
    Kowal, Paweł
    Kremer, Andrzej
    Kuriata, Jan
    Sellin, Jarosław
    Węgrzyn, Robert
    Wróbel, Marzena
    Żukowski, Wojciech
    Sejmowa Komisja Sprawiedliwości i Praw Człowieka obrady 2008 r.
    Sejmowa Komisja Spraw Zagranicznych obrady 2008 r.
    Sprawa katyńska Polska 2008 r.
    Opis:
    Wspólne posiedzenie komisji dot. działań w spr. ostatnich decyzji wymiaru sprawiedliwości Federacji Rosyjskiej w odniesieniu do ofiar zbrodni katyńskiej i ich rodzin oraz przykładów publicznego powtarzania kłamstw dotyczących zbrodni.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
      Wyświetlanie 1-78 z 78

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