263,862 research outputs found
Neuronal mechanisms mediating the variability of somatosensory evoked potentials during sleep oscillations in cats
No full textThe slow oscillation (SO) generated within the corticothalamic system is composed of active and silent states. The studies of response variability during active versus silent network states within thalamocortical system of human and animals provided inconsistent results. To investigate this inconsistency, we used electrophysiological recordings from the main structures of the somatosensory system in anaesthetized cats. Stimulation of the median nerve (MN) elicited cortical responses during all phases of SO. Cortical responses to stimulation of the medial lemniscus (ML) were virtually absent during silent periods. At the ventral-posterior lateral (VPL) level, ML stimuli elicited either EPSPs in isolation or EPSPs crowned by spikes, as a function of membrane potential. Response to MN stimuli elicited compound synaptic responses and spiked at any physiological level of membrane potential. The responses of dorsal column nuclei neurones to MN stimuli were of similar latency, but the latencies of antidromic responses to ML stimuli were variable. Thus, the variable conductance velocity of ascending prethalamic axons was the most likely cause of the barrages of synaptic events in VPL neurones mediating their firing at different level of the membrane potential. We conclude that the preserved ability of the somatosensory system to transmit the peripheral stimuli to the cerebral cortex during all the phases of sleep slow oscillation is based on the functional properties of the medial lemniscus and on the intrinsic properties of the thalamocortical cells. However the reduced firing ability of the cortical neurones during the silent state may contribute to impair sensory processing during sleep
Mit Horoskopen Deutsch lernen! Spracharbeit mit populären Kleintexten
No full textKöster L. Mit Horoskopen Deutsch lernen! Spracharbeit mit populären Kleintexten. In: Timofeev AM, ed. Kul’turnyj kontekst v professional’nom obrazovanii i mežkul’turnoj kommunikacii: materialy meždunarodnoj konferencii 15-17 sentjabrja 2005 goda. Velikij Novgorod; 2006: 104-112
Effective strain gradient continuum model of metamaterials and size effects analysis
No full textIn this paper, a strain gradient continuum model for a metamaterial with a periodic lattice substructure is considered. A second gradient constitutive law is postulated at the macroscopic level. The effective classical and strain gradient stiffness tensors are obtained based on asymptotic homogenization techniques using the equivalence of energy at the macro- and microscales within a so-called representative volume element. Numerical studies by means of finite element analysis were performed to investigate the effects of changing volume ratio and characteristic length for a single unit cell of the metamaterial as well as changing properties of the underlying material. It is also shown that the size effects occurring in a cantilever beam made of a periodic metamaterial can be captured with appropriate accuracy by using the identified effective stiffness tensors
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dynamics of the quantity of agronomically valuable groups of microorganisms during cultivation of maize on sod–podzolic light–clay soil
No full textThe paper considers the effect of biofertilizers (PolyFunKur and Agromik) on agronomically valuable groups of microorganisms in order to determine their quantity depending on the phenol phases of maize.
Methods: phenological, agrochemical, microbiological.
Studies were carried out on sod–podzolic light–clay soil. The studies of the quantity of agronomically valuable groups of microorganisms with PolyFunKur in the tillering phase revealed that eight of nine groups had increased their quantity from 0.3 to 1.8 times over the control; only cellulose–destroying aerobic microorganisms had decreased their quantity in 3.5 times under the control. Most of the groups of microorganisms increased their quantity over the control in case of Agromik as well. The total amount of microorganisms assimilating mineral nitrogen was almost equal in both tests. As in the tillering phase, in the beginning of flowering phase, eight of nine groups had increased their quantity over the control in case PolyFunKur test. In the case of Agromik, the quantity of micromycetes and spore ammonifiers in the control was higher while the quantity of cellulose–destroying aerobic bacteria was almost the same in the tillering phase; and was higher by more than 27 times than in PolyFunKur test in the beginning of the flowering phase. The quantity of all the studied agronomically valuable groups of microorganisms in PolyFunKur test was higher than in the control and in the Agromik test in the cob-forming phase
Techniques for Portraying a Main Character in Yakut Epic: Investigating Olonkho Texts of Nyurgun Bootur the Swift by P. Oyunsky and Kulun Kullustuur the Obstinate by I. Timofeev-Teploukhov
No full textIntroduction. The article examines Yakut heroic olonkho epics — Nyurgun Bootur the Swift by P. Oyunsky and Kulun Kullustuur the Obstinate by I. Timofeev-Teploukhov — for techniques employed to create portraits of main characters. According to N. Yemelyanov, the olonkho Kulun Kullustuur the Obstinate recorded from taleteller I. Timofeev-Teploukhov clusters with earliest patterns of archaic epic, while that of Yakut writer P. Oyunsky (Nyurgun Bootur the Swift) is the first literary adaptation of olonkho texts. The study attempts an insight into how and which particular portrayal techniques were used by P. Oyunsky and I. Timofeev-Teploukhov to depict main characters of theirs. The comparative approach to the narratives recorded in different periods shall make it possible to trace the use of portrayal techniques, which shall underline the unique artistic features characterizing each of the taletellers, and show how such portrayal patterns developed to gain deeper associative essentials in further olonkho texts. Goals. The study aims to identify some distinct features inherent to the techniques of creating main characters’ portraits in the olonkhos Nyurgun Bootur the Swift and Kulun Kullustuur the Obstinate, and outline ethnic specifics in portrayal characteristics. To facilitate this, the paper shall classify portrayals, articulate types of techniques and their functions in portraying a main character, identify stable formulas employed to depict heroes, determine specific features of portrayal as a key technique for the making of an epic hero. The work reviews the existing types of epic portraits, their functions and attributes, examines some visual means serving to unveil the images of main characters. Results. The study attests to the examined narratives are characterized by an increased stability of depictive portrayals with peripheral parts (artistic and emotional epithets) tending to vary. Each such depictive portrayal proves multifunctional, semantically wide, and technically relevant. The descriptions of the heroes’ appearances are somewhat idealized and rich in comparisons, repetitions, evaluative epithets. Portrayal agendas of P. Oyunsky vary through history and depend on actual artistic methods and style employed by the author who pays special attention to fictional details depicted in the context of folk traditions. The study of the techniques helps identify which innovative tools P. Oyunsky used when he was creating his Nyurgun Bootur the Swift
(Table 10) Composition of organic matter in sedimentary rocks from DSDP Leg 62 holes
No full text(Table 10) Composition of organic matter in sedimentary rocks from DSDP Leg 62 hole
Protecting Animals 36: Author Witi Ihimaera
No full textIn this very special episode of Knowing Animals I am joined by beloved New Zealand author Witi Ihimaera. Witi has written many books featuring nonhuman animals. He offers us a non-colonial lens through which to think about the human/nonhuman relationship
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Author in Essay by I. A. Goncharov “Pepiniere”
No full textFeatures of the embodiment of the author’s position in the essay by I. A. Goncharov “Pepiniere” are considered. The relevance of the study is due to the poorly studied poetics of this work. A review of the scientific literature on relevant topics is performed. Methodological and theoretical definitions are given. The scientific novelty of the article is in the fact that for the first time attention is paid to artistic techniques that allow to identify the author's position in the specified literary text. The author of the article grounds her opinion from the fact that, despite the dominance of the subjective point of view, other characters’ views stand out in the work. It is concluded in the study that the text of the work represents a biographical author and author-creator. It was established that the position of the author-creator is expressed through the title, epigraphs, which are quotes, as well as through different points of view, including the author-character, the author-narrator, the characters of the work. The author of the article dwells in detail on different ways of expressing the points of view of the author-character and the author-narrator. It is proved that the point of view of the author-character and the author-narrator can intersect, they are interchanged. The author's development of the term comic “point of view” is presented in the article
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