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    Tytuł:
    The influence of age and L2 on third language acquisition in a corporate environment
    Autorzy:
    Lipińska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/783089.pdf
    Data publikacji:
    2017
    Wydawca:
    Wydawnictwo Uniwersytetu Śląskiego
    Opis:
    The role of age factor in SLA has been systematically studied by numerous psycholinguists for many years (Ellis, 1994), starting from the Critical Period Hypothesis (firstly proposed by Penfield and Roberts, 1959, and then popularized by Lenneberg, 1967) and continuing until today. Older L2 learners rarely achieve the native-like fluency which younger learners frequently display, however there are also numerous cases of individuals who mastered an L2 in adulthood (Singleton and Lengyel, 1995; Flege and MacKay, 2011). Moreover, it cannot be forgotten that children lack the linguistic experience, strategies and knowledge which adults posses and which can be useful in learning a new language. Thus it is very difficult to decide which group constitutes better language learners (Arabski, 1997; Jackiewicz, 2009). The situation becomes even more complicated in the case of L3 acquisition when not only all factors influencing SLA are active, but also numerous other processes affect TLA. The aim of this study was to analyse the influence of the age factor and learners’ L2 on TLA in a corporate environment. A group of subjects from an international company situated in the south of Poland agreed to participate in the study. They were native speakers of Polish learning L3-German in their company, but varying in terms of L2 (English and Russian), as well as in terms of age. The participants were between 28 and 62 years old. The results of regularly administered tests focusing on various language skills, obtained by the learners were compared. The subjects also completed questionnaires concerning difficulties they encountered while learning German. Both information sources delivered intriguing results contributing to the area of TLA and age-related research.
    Źródło:
    Theory and Practice of Second Language Acquisition; 2017, 3, 1
    2450-5455
    2451-2125
    Pojawia się w:
    Theory and Practice of Second Language Acquisition
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rethink your old teaching methods: designing a pronunciation course for young teenagers
    Autorzy:
    Lipińska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/783250.pdf
    Data publikacji:
    2018
    Wydawca:
    Wydawnictwo Uniwersytetu Śląskiego
    Tematy:
    foreign language learning
    pronunciation teaching
    teaching materials
    Opis:
    ABSTRACT   Numerous studies (e.g. Lipińska, 2014; Majer, 2002; Nowacka, 2003; Sobkowiak, 2002; Szpyra-Kozłowska, et al., 2002; Szpyra-Kozłowska, 2008; Waniek-Klimczak, 2002; Wrembel, 2002) have shown that although teaching L2 pronunciation is included in university curricula, it is at the same time virtually absent at lower stages of education. Moreover, it has been noticed that teaching phonetics to younger learners is advisable and may be really effective (e.g. Lipińska, in press a; Nixon and Tomlinson, 2005). Undoubtedly, one can say that there are a lot of books and courses designed for adults written by and for Polish learners of English (e.g. Porzuczek et al., 2013; Sawala et al., 2011) or dedicated to international users (e.g. Baker, 2006; Hancock, 2008; Hewings, 2010). But the materials and methods used while working with adult learners and university students are no longer applicable if one wants to teach phonetics in a different environment and create an attractive and efficient course for children or young teenagers, since, as e.g. Komorowska (2011) notices, each foreign language course has to be characterised by realistic goals and appropriate methods and components. The aim of this paper is to present various methods and materials which can be successfully applied while teaching English pronunciation to 11-13-year-olds. They have been used in three groups consisting of such L2 learners, and their usefulness and effectiveness have been proven by studies on both speech production and perception (e.g. Lipińska, in press b).
    Źródło:
    Theory and Practice of Second Language Acquisition; 2018, 4, 1
    2450-5455
    2451-2125
    Pojawia się w:
    Theory and Practice of Second Language Acquisition
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Production of L3 Vowels: Is it Possible to Separate them from L1 and L2 Sounds?
    Autorzy:
    Lipińska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/620861.pdf
    Data publikacji:
    2015-03-01
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Opis:
    It is incontrovertible that acquisition of a sound system of a second language is always a complex phenomenon and presents a great challenge for L2 learners (e.g. Rojczyk, 2010a). There are numerous studies (e.g. Nowacka, 2010; Flege, 1991) which show that L2 learners whose first language has a scarce number of sounds, have problems to distinguish L2 sound categories and tend to apply their L1 segments to new contexts. It may be easily detectable in the case of vowels. There is abundance of studies examining L2 learners’ successes and failures in production of L1 and L2 vowels (e.g. Flege, 1992; Nowacka, 2010; Rojczyk, 2010a). Usually such projects show how difficult it is for L2 learners to separate “old” and “new” vowel categories. However, the situation becomes much more complicated when we think of third language (L3) production. While in the case of L2 segmental production the number of factors affecting L2 sounds is rather limited (either interference from learners’ L1 or some kind of L2 intralingual influence), in the case of L3 segmental production we may encounter L1→L3, L2→L3 or L3 intralingual interference. This makes separation of L3 sounds a much more complex process. The aim of this study is to examine whether speakers of L1 Polish, L2 English and L3 German are able to separate new, L3 vowel categories from their native and L2 categories. Being a part of a larger project, this time the focus is on German /œ/. This vowel was chosen since it is regarded as especially difficult for Polish learners of German and it is frequently substituted with some other sounds. A group of English philology (Polish-English-German translation and interpretation programme) students was chosen to participate in this project. They were advanced speakers of English who did not encounter any difficulties in communication with native speakers of this language and upper-intermediate users of German. They had been taught both English and German pronunciation/practical phonetics during their studies at the University of Silesia. The subjects were asked to produce words containing analysed vowels, namely: P /u/, P /ɔ/, P /ɛ/, E /u/, E /ɔ / and G /œ/. All examined vowels were embedded in a /bVt/ context. The target /bVt/ words were then embedded in carrier sentences I said /bVt/ this time in English, Ich sag’ /bVt/ diesmal in German and Mówię /bVt/ teraz in Polish, in a non-final position. The sentences were presented to subjects on a computer screen and the produced chunks were stored in a notebook’s memory as .wav files ready for inspection. The Praat 5.3.12 speech-analysis software package (Boersma, 2001) was used to scroll through the audio files in order to locate an onset and offset of target vowels, measure the F1 and F2 frequencies and plot vowels on the plane. All analyses were also performed using Praat. The obtained results shed new light on L3 segmental production and L1 and L2 interference.
    Źródło:
    Research in Language; 2015, 13, 1; 77-92
    1731-7533
    Pojawia się w:
    Research in Language
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mikroprocesorowy układ sterowania zespołem wentylacyjno-grzewczym dla tramwaju
    Microprocessor control system for ventilation and heating assembly for a train
    Autorzy:
    Iwanowski, Jarosław
    Lipińska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/34670974.pdf
    Data publikacji:
    2008
    Wydawca:
    Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
    Tematy:
    układ sterowania zespołem wentylacyjno-grzewczym
    tramwaj
    łączniki tranzystorowe
    układ nawiewny wagonu
    sterownik mikroprocesorowy
    Opis:
    W artykule omówiono układ sterowania zespołem wentylacyjno-grzewczym typu 104ZW o mocy 20 kW przeznaczonym do wentylacji i ogrzewania wnętrza wagonu tramwaju. Zespół przystosowany jest do współpracy z dodatkowymi grzejnikami o łącznej mocy 10 kW umieszczonymi pod siedzeniami w przedziale pasażerskim oraz z wentylatorami dachowymi. Do zasilania elementów grzejnych zarówno w zespole wentylacyjno-grzewczym jak i elementów grzejnych w wagonie a także wentylatorów oraz obwodów zabezpieczeń termicznych zastosowano łączniki tranzystorowe wykonane w 1PS ,, TABOR ". Pracą całego układu nawiewnego wagonu steruje sterownik mikroprocesorowy.
    In this article the ventilation-heating assembly of 104ZW type of 20kW power intended for ventilation and heating of the tram car interior is discussed. The assembly is adapted to cooperation with the additional heaters with the total power of lOkW placed under the seats in the passenger compartment and with the roof fans. The transistor switches, made in IPS "Tabor", are applied for supplying the heaters in both the ventilation-heating assembly and in the car, and also for supplying the fans and the circuits of thermal protections. Operation of the whole ventilation-heating assembly of the car is controlled with the microprocessor controller.
    Źródło:
    Rail Vehicles/Pojazdy Szynowe; 2008, 1; 50-55
    0138-0370
    2719-9630
    Pojawia się w:
    Rail Vehicles/Pojazdy Szynowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Instytucjonalna Polityka Otwartego Dostępu. Działania związane z wprowadzeniem otwartego mandatu wobec publikacji naukowych na Politechnice Krakowskiej
    Institutional open access policy. Actions related to the introduction of open mandate for scientific publications at the Cracow University of Technology
    Autorzy:
    Górski, Marek M.
    Buzdygan, Dorota
    Lipińska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/1368432.pdf
    Data publikacji:
    2021-06-07
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    institutional Open Access Policy
    open science
    open mandate
    Cracow University of Technology
    CUT Repository
    CUT Library
    scientific publications
    Open Access
    OA
    instytucjonalna Polityka Otwartego Dostępu
    otwarta nauka
    otwarty mandat
    Politechnika Krakowska
    Repozytorium PK
    Biblioteka PK
    publikacje naukowe
    otwarte udostępnianie
    Opis:
    Celem artykułu jest przedstawienie działań poprzedzających wprowadzenie Polityki Otwartego Dostępu wobec publikacji naukowych na Politechnice Krakowskiej (PK). Działania, których skutkiem było przyjęcie otwartego mandatu na PK, obejmowały m.in.: przygotowanie infrastruktury informatycznej – w tym utworzenie Repozytorium PK, opracowanie dokumentów prawnych, udostępnienie rozpraw doktorskich, wprowadzenie otwartych licencji dla czasopism naukowych wydawanych na PK, działania informacyjne i edukacyjne w zakresie OA. Prace te realizowano zgodnie z wytycznymi zawartymi w dokumentach rządowych oraz na podstawie praktycznych rozwiązań zrealizowanych w instytucjach naukowych. Konsekwencją tych działań było wprowadzenie, na mocy zarządzenia Rektora PK z dnia 22 marca 2019 roku, Polityki Otwartego Dostępu na PK. W podsumowaniu omówiono również dane przedstawione w pierwszym Raporcie z realizacji Polityki Otwartego Dostępu na Politechnice Krakowskiej.
    The article presents actions that preceded the introduction of open access policy for scientific publications at the Cracow University of Technology. These included: preparation of the IT infrastructure, providing access to doctoral dissertations, creating the CUT Repository, development of legal documents, introducing open licenses for scientific journals published at the CUT, information and educational actions in the field of OA. These works were carried out following the guidelines contained in government documents and based on practical solutions implemented in this area in the scientific community. The above-mentioned actions led to the introduction of Open Access Policy at the CUT under the Ordinance of the Rector of the CUT of 22 March 2019. The article also discusses the data presented in the first report on the implementation of the Open Access Policy at the Cracow University of Technology and the resulting conclusions.
    Źródło:
    Biblioteka; 2020, 24 (33); 257-276
    1506-3615
    2391-5838
    Pojawia się w:
    Biblioteka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Escherichia coli small heat shock proteins IbpA/B enhance activity of enzymes sequestered in inclusion bodies.
    Autorzy:
    Kuczyńska-Wiśnik, Dorota
    Żurawa-Janicka, Dorota
    Narkiewicz, Joanna
    Kwiatkowska, Joanna
    Lipińska, Barbara
    Laskowska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1041504.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    protein aggregation
    inclusion bodies
    IbpA/B
    Opis:
    Escherichia coli small heat shock proteins, IbpA/B, function as molecular chaperones and protect misfolded proteins against irreversible aggregation. IbpA/B are induced during overproduction of recombinant proteins and bind to inclusion bodies in E. coli cells. We investigated the effect of ΔibpA/B mutation on formation of inclusion bodies and biological activity of enzymes sequestered in the aggregates in E. coli cells. Using three different recombinant proteins: Cro-β-galactosidase, β-lactamase and rat rHtrA1 we demonstrated that deletion of the ibpA/B operon did not affect the level of produced inclusion bodies. However, in aggregates containing IbpA/B a higher enzymatic activity was detected than in the IbpA/B-deficient inclusion bodies. These results confirm that IbpA/B protect misfolded proteins from inactivation in vivo.
    Źródło:
    Acta Biochimica Polonica; 2004, 51, 4; 925-931
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cloning of the groE operon of the marine bacterium Vibrio harveyi using a lambda vector
    Autorzy:
    Kuchanny, Dorota
    Klein, Gracjana
    Krzewska, Joanna
    Czyż, Agata
    Lipińska, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/1044880.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1998, 45, 1; 261-270
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in expression of serine proteases HtrA1 and HtrA2 during estrogen-induced oxidative stress and nephrocarcinogenesis in male Syrian hamster
    Autorzy:
    Zurawa-Janicka, Dorota
    Kobiela, Jaroslaw
    Stefaniak, Tomasz
    Wozniak, Agnieszka
    Narkiewicz, Joanna
    Wozniak, Michał
    Limon, Janusz
    Lipinska, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/1040768.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    17-β-estradiol
    HtrA proteases
    estrogen-induced carcinogenesis
    oxidative stress
    Opis:
    Serine proteases HtrA1 and HtrA2 are involved in cellular stress response and development of several diseases, including cancer. Our aim was to examine the involvement of the HtrA proteins in acute oxidative stress response induced in hamster kidney by estrogen treatment, and in nephrocarcinogenesis caused by prolonged estrogenization of male Syrian hamster. We used semi-quantitative RT-PCR to estimate the HtrA1 and HtrA2 mRNA levels in kidney tissues, and Western blotting to monitor the amount of the HtrA proteins. Within the first five hours following estrogen administration both HtrA1 mRNA and the protein levels were increased significantly. No changes in the expression of HtrA2 were observed. This indicates that HtrA1 may be involved in the response against oxidative stress induced by estrogen treatment in hamster kidney. During prolonged estrogenization, a significant reduction of the HtrA1 mRNA and protein levels was observed after 6 months of estradiol treatment, while the expression of HtrA2 was significantly elevated starting from the third month. This suggests an involvement of the HtrA proteins in estrogen-induced nephrocarcinogenesis in hamster. Using fluorescence in situ hybridization we localized the HtrA1 gene at the qb3-4 region of Syrian hamster chromosome 2, the region known to undergo a nonrandom deletion upon prolonged estrogenization. It is possible that the reduced level of HtrA1 expression is due to this chromosomal aberration. A full-length cDNA sequence of the hamster HtrA1 gene was obtained. It codes for a 50 kDa protein which has 98 and 96% identity with mouse and human counterparts, respectively.
    Źródło:
    Acta Biochimica Polonica; 2008, 55, 1; 9-20
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Immune response against HtrA proteases in children with cutaneous mastocytosis
    Autorzy:
    Renke, Joanna
    Kędzierska-Mieszkowska, Sabina
    Lange, Magdalena
    Nedoszytko, Bogusław
    Liberek, Anna
    Plata-Nazar, Katarzyna
    Renke, Marcin
    Wenta, Tomasz
    Żurawa-Janicka, Dorota
    Skórko-Glonek, Joanna
    Lipińska, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/1038382.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    HtrA proteases
    children
    cutaneous mastocytosis
    mast cells
    Opis:
    Mast cells play an important role in both, the innate and adaptive immunity, however, clonal proliferation of abnormal mast cells in various organs leads to mastocytosis. A skin variant of the disease, cutaneous mastocytosis (CM) is the most frequent form of mastocytosis in children. HtrA proteases are modulators of important cellular processes, including cell signaling and apoptosis, and are related to development of several pathologies. The above and the observation that mast cells constitutively release the HtrA1 protein, prompted us to investigate a possible involvement of the HtrA proteins in pediatric CM. Levels of the serum autoantibodies (IgG) against the recombinant HtrA proteins (HtrA1-4) in children with CM (n=36) and in healthy controls (n=62) were assayed. Anti-HtrA IgGs were detected using enzyme linked immunosorbent assay (ELISA) and Western-blotting. In the CM sera, levels of the anti-HtrA1 and anti-HtrA3 autoantibodies were significantly increased when compared to the control group, while the HtrA protein levels were comparable. No significant differences in the anti-HtrA2 IgG level were found; for the anti-HtrA4 IgGs lower levels in CM group were revealed. In healthy children, the IgG levels against the HtrA1, -3 and -4 increased significantly with the age of children; no significant changes were observed for the anti-HtrA2 IgG. Our results suggest involvement of the HtrA1 and HtrA3 proteins in pediatric CM; involvement of the HtrA4 protein is possible but needs to be investigated further. In healthy children, the autoantibody levels against HtrA1, -3 and -4, but not against HtrA2, increase with age.
    Źródło:
    Acta Biochimica Polonica; 2018, 65, 3; 471-478
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of estrogen-induced oxidative stress
    Autorzy:
    Kobiela, Jarek
    Stefaniak, Tomasz
    Krajewski, Jacek
    Kalinska-Blach, Beata
    Zurawa-Janicka, Dorota
    Lachinski, Andrzej
    Gackowski, Daniel
    Olinski, Ryszard
    Nowak, Jerzy
    Knap, narcyz
    Lipinska, Barbara
    Sledzinski, Zbigniew
    Wozniak, Michal
    Powiązania:
    https://bibliotekanauki.pl/articles/1041076.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    8-oxodGuo
    estradiol
    protein oxidation
    carcinogenesis
    DNA damage
    lipid peroxidation
    Opis:
    The objective of this study was to assess the dynamics of oxidative damage to cellular macromolecules such as proteins, lipids and DNA under conditions of oxidative stress triggering early stages of estrogen-dependent carcinogenesis. A rodent model of carcinogenesis was used. Syrian hamsters were sacrificed after 1, 3, 5 h and one month from the initial implantation of estradiol. Matching control groups were used. Kidneys as target organs for estradiol-mediated oxidative stress were excised and homogenized for biochemical assays. Subcellular fractions were isolated. Carbonyl groups (as a marker of protein oxidation) and lipid hydroxyperoxides were assessed. DNA was isolated and 8-oxodGuo was assessed. Electron paramagnetic resonance spectroscopy was used to confirm the results for lipid peroxidation. Exposition to estradiol in the rodent model leads to damage of macromolecules of the cell, including proteins and DNA, but not lipids. Proteins appear to be the primary target of the damage but are closely followed by DNA. It has previously been speculated that protein peroxides can increase DNA modifications. This time sequence was observed in our study. Nevertheless, the direct relation between protein and DNA damage still remains unsolved.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 2; 289-295
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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