100,522 research outputs found
Single crystal growth
No full textThe development of many new devices is strictly connected with the availability of materials in single crystalline form, with low density of crystallographic defects and specific electrical, magnetic, optical, chemical, and mechanical properties. This implies the development of suitable growth processes by which the composition, the structure, as well as the physical properties of a given material are accurately controlled. Three major categories of crystal growth technologies have been applied to obtain large single crystals: melt growth, solution growth, and vapor transport. The basic characteristics of the material actually decide what approach is most convenient. This article reviews the theoretical basis of the crystal growth processes and the most important crystal growth techniques. Examples of growth techniques applied to specific materials are provided
The agrobotanical garden of the Agronomy Institute "Dr. Petru Groza"
No full textThe paper presents the main orientations in the activities of the Agrobotanical Garden from the Agronomy Institute "Dr. Petru Groza" Cluj-Napoca, founded 75 years ago. The first period of the garden was characterised by increased interest for medicinal plants, the second for plant taxonomy and systematics, the third by ecological orientations, research on cultivated varieties and for germplasm resources. The living plant collection of the garden are presented periodically in the Index Seminum Horti Agrobotanici Cluj - Napoca published since 1962, the results of botanical interest related to research on spontaneous species and cultivated plants are published in Notulae Botanicae Horti Agrobotanici Cluj-Napoca. As a result of the research activities a Herbarium of more than 31 000 cultivated and spontaneous plant specimens are preserved
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Reflections on the Margins of the Monograph on the Life and Work of Aleksander Groza: On the Poems Melancholia and Kniaźnin
No full textThe article compares two poems by Aleksander Groza, a representative of the “Ukrainian school” of Polish Romanticism, which has not yet
been the subject of a thorough literary analysis. The first poem, Melancholia. The Mad Poet, is Groz’s debut publication that appeared in the
Noworocznik litewski for the year 1831. The second one, Kniaźnin, was included in the first volume of his poetry collection (Poezje, Wilno 1836).
The research for Aleksander Groza’s monograph has revealed some interesting interpretative and biographical facts related to these texts.
Drawing from the methodology of comparative studies, biography, and intertextual analysis, the author succeeded in establishing the intertextual dependencies and discovered the sources of the poet’s inspiration from German (J.W. Goethe), native Lithuanian (A. Mickiewicz), and local
Ukrainian (J.M. Zaleski, A. Malczewski, M. Maksymowicz) literary [email protected]ł Filologiczny, Uniwersytet ŁódzkiAkt zgonu Aleksandra Grozy z dnia 22.10.1875 r., nr aktu 35, parafia Białopol rej. koziatyński, miejsc. Chałaimgródek, w: Centralne Państowe Historyczne Archiwum Ukrainy w Kijowie.Aleksandrowska Elżbieta (1967–1968), Kniaźnin Franciszek Borgiasz, w: Polski Słownik Biograficzny, t. 13, Wrocław–Warszawa–Kraków, s. 122–126.Blombergowa Maria Magdalena (1992), Znaczenie Uniwersytetu w Dorpacie dla kultury i nauki polskiej (przed 1917 r.), „Acta Universitatis Lodziensis. Folia Archaeologica”, nr 17, s. 3–16.Boruszkowska Iwona (2014), Źródła romantycznej fascynacji Ukrainą i zagadnienie szkoły ukraińskiej w romantyzmie polskim (debata o „szkołach poetyckich”), „Language and Literary Studies of Warsaw”, nr 4, s. 37–53.Bracka Marija (2012), Kozak i Lach w twórczości Aleksandra Karola Grozy, w: Szkoła ukraińska w romantyzmie polskim. Szkice polsko-ukraińskie, red. S. Makowski, U. Makowska, M. Nesteruk, Warszawa: Nakładem Wydziału Filologicznego UW, s. 443–465.Dmochowski Franciszek (1828), Wiadomość o życiu i pismach Franciszka Dionizego Kniaźnina, w: Dzieła Franciszka Dionizego Kniaźnina przez F. S. Dmochowskiego, t. 1, Warszawa, s. I–XXXVI.Gnatuk Volodimir Mihajlovič (1928), Ukraıns'kii fol’klor upol’s’kih pererobkah (Oleksander G’roza), „Stattì j materìalì z ìstorìì u’kraìns'koì etnografiì”, nr 7, s. 146–167.Goethe Johann Wolfgang, Torquatto Tasso, Liepzig 1790.Grabowski Michał (1843), Korespondencja literacka, t. 2, Wilno.Groza Aleksander (1831), Melancholia. Poemat, „Noworocznik litewski”, s. 103–123.Groza Aleksander (1836), Poezje, Wilno.Jaksa-Marcinkowski Antoni (1876), Aleksander Groza, „Kronika Rodzinna”, nr 1–2.Janion Miaria (1960), Aleksander Groza, w: Polski Słownik Biograficzny, t. 9, Wrocław: PAN, s. 31–32.Jankowski Władysław (1904), Franciszek Dionizy Kniaźnin: szkic biograficzny, „Pamiętnik Literacki”, s. 360–377.Kamionka-Straszakowa Janina (1983), Magiczne zwierciadło – ustęp z dziejów almanachów, w: J. Kamionka-Straszakowa, Błękitny kwiat. Almanach romantycznej poezji i prozy dla miłośników literatury na rok 1983, Kraków: Wydawnictwo Literackie.Lul Marcin (2019), Powieść bez tytułu Józefa Ignacego Kraszewskiego jako „powieść uniwersytecka”, w: Romantyzm uniwersytecki: kulturotwórcza rola ośrodków akademickich w pierwszej połowie XIX wieku, red. E. Dąbrowicz. M. Lul, Białystok: Wydawnictwo Uniwersytetu w Białymstoku, s. 243–256.Nowak Alicja (2014), Polscy studenci na Uniwersytecie w Dorpacie w latach 1802–1918, „Miscellanea Historico-Archivistica”, t. XXI, s. 129–135.Pszczołowska Lucyna (2012), O wierszu „słowika ukraińskiego”, w: Szkoła ukraińska w romantyzmie polskim. Szkice polsko-ukraińskie, red. S. Makowski, Warszawa: Nakładem Wydziału Filologicznego UW, s. 35–52.Siemieński Lucjan (1859), Charakter poezji ukraińskiej i poemata Aleksandra Grozy, w: l. Siemieński, Kilka rysów z literatury i społeczeństwa od roku 1848–1858, Warszawa, t. 2.Węgrzyn Iwona (2020), Kłopotliwe dziedzictwo sarmatyzmu. Romantyczni twórcy wobec postaci starosty kaniowskiego Mikołaja Bazylego Potockiego, „Annales Universitatis Paedagogicae Cracoviensis. Studia Historicolitteraria”, nr 20, s. 166–191.Wiktowska Alina (2003), Literatura romantyzmu, Warszawa: PWN. Wóycicki Kazimierz Władysław (1865), Aleksander Groza, „Tygodnik Ilustrowany”, nr 306.Zdziarski Stanisław (1901), Pierwiastek ludowy w poezji polskiej XIX wieku, Warszawa.Zieliński Jan (2022), Poeta przed kompasem, „Załącznik Kulturoznawczy”, nr 9, s. 503–515.Wóycicki Kazimierz Władysław (1865), Aleksander Groza, „Tygodnik Ilustrowany”, nr 306.24718
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Pelevin’s Trinity in the novel “t”: author – protagonist – reader
No full textThe article attempts to interpret Pelevin's artistic strategy in the novel "T" by exploring its subject organization and addressing the key problems of the author, the protagonist, and the reader as they are seen by the researcher. The article analyzes the peculiarities of constructing the narrative reality in the novel "T", and goes on to discuss Pelevin's philosophic models of the development of the humankind, and the emergence of his new anthropology
Athermal and thermal mechanisms of sintering at high heating rates in the presence and absence of an externally applied field.
No full textIn order to establish the relative contributions of thermal and athermal mechanisms to densification in the absence of an extrinsic sintering pressure, nanometric powder compacts were sintered with and without applied fields using varied heating rates from 50 °C/min up to 800 °C/min. The relative contribution of the thermal and athermal mechanistic contributions to the densification behavior of two model dielec. ceramics, hydroxyapatite and zinc oxide, is evaluated in the context of the current leading theories of field-assisted sintering mechanisms. The effects of elevated heating rates in nanometric, dielec. ceramics are found to be minimal in the absence of a field. However, in the presence of an applied field there appears to be a synergistic effect with heating rate. [on SciFinder(R)
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