698 research outputs found
Remarques au sujet de la conception du modèle économique socialiste de Tibor Liska
No full textSome Observations on Tibor Liska's View of a Socialist Economic Model.
According to Berend, Tibor Liska has become something of a legend among Hungarian economists, and his highly original model has understandably aroused considerable controversy, not least with the author himself.
Berend attempts first of all to situate Liska's ideas within the framework of Hungarian theory and practice. He outlines briefly the historical development of the socialist economic system, from Marx and Engels, via the Soviet experience, to the Hungarian model which has been evolving since the mid-sixties, and which, as we know, has generated much interest.
In Berend's view, Liska's activities, his ideas and his writings, form an integral part of the historical development of socialist economic theory, particularly the reformist currents in the last three decades. However, while in agreement with certain of Liska's propositions, he is unable to accept any system based on these ideas. In particular, he is critical of his notorious principles of free competition and the auction, which in his view have no contact with reality, a consideration which does not at all enter into Liska's calculations. He sees in Liska's model an extremist system, which in practice would preclude any intervention by the state, even in social or cultural activities. Liska's radical concepts, when systematized, turn out to be conservative, therefore retrograde and in any case Utopian. This is Berend's conclusion after a well-argued case.Selon Berend, Tibor Liska a pris une stature quasi mythique parmi les économistes hongrois et son audacieux modèle soulève évidemment bien des controverses, à commencer par celles de l'auteur de l'article.
Ce dernier essaie d'abord de replacer le système de pensée de Liska dans la théorie et la pratique hongroises. Il décrit brièvement l'évolution historique du système économique socialiste, partant de Marx et Engels et passant par l'expérience soviétique pour arriver au modèle hongrois en formation depuis le milieu des années soixante, modèle qui suscite l'intérêt que l'on sait.
Berend estime que les activités, les idées et les écrits de Liska font partie intégrante de l'évolution historique de la théorie économique socialiste et notamment de la pensée réformiste des trois dernières décennies. Mais, alors qu'il apprécie nombre d'éléments proposés par Liska, il ne peut adhérer au système construit sur la base de ses idées. Il critique en particulier les fameux principes de libre concurrence et de mise à l'enchère qui, pour lui, se heurtent à la réalité, ce dont Liska ne tient absolument pas compte. Il y voit un système excessif, qui interdit pratiquement l'intervention étatique y compris dans le domaine des activités sociales et culturelles. Les conceptions radicales de Liska, en se posant en sysème, deviennent conservatrices, voire rétrogrades et en tout cas utopiques. C'est la conclusion à laquelle Berend parvient au bout d'une argumentation bien construite.Berend T. Ivàn. Remarques au sujet de la conception du modèle économique socialiste de Tibor Liska. In: Revue d'études comparatives Est-Ouest, vol. 14, 1983, n°1. pp. 29-45
Molpadia liska Pawson 1977
No full textMolpadia liska Pawson, 1977 (Figs 9 B–G, 11) Molpadia liska Pawson, 1977: 115 –116, figs 6 (a–g, i), 7 (a–b, d) Material. M 48 / 1333: 1 specimen (ZSM 20043068), 1 specimen (ZSM 20043069). M 48 / 1349: 4 specimens (ZSM 20020025). M 48 / 1351: 5 specimens (ZSM 20020028). Description. The specimens range from 24 to 63 mm in length, and 6 to 13 mm in width (at calcareous ring). The body is approximately cylindrical, with a tapering posterior end, resulting in a very short tail (only few millimetres long). Preserved specimens are dirtywhite with a tinge of pink. Fifteen retracted tentacles encompass the terminal mouth. Likewise, the anus is terminal and in each radius there are few short anal papillae. The calcareous ring is solid, smooth and composed of five radial plates (Fig. 9 B: ldr, lvr), with prominent posterior projections and five much smaller interradial plates (Fig. 9 B: llir). The tentacle ampullae are short. Longitudinal muscle bands are undivided. There is one tubular polian vesicle in the left ventral radius. The single stone canal is long and embedded in the dorsal mesentery and has a large oval madreporite body close to the dorsal body wall. The gonad consists of tufts of branching, tubules on both sides of the dorsal mesentery. The intestine forms a large loop (as long as body) and the respiratory trees are conspicuous. The calcareous deposits of the body wall (Figs 9 C–D) and the tail (Figs 9 E–F) are exclusively tables with 3–9 holes and a large solid spire, derived from three fused pillars, with 4–6 terminal hooklets. The tables of the body wall in the current specimens on average range from 95 to 121 (Tab. 2) and usually have 4 or 5 holes, while the tables from the tail are smaller, on average 86 to 105 in diameter (Tab. 2) and have fewer holes (3 or 4). There are no phosphatic deposits, but anal teeth are present (Fig. 9 G). Remarks. The current specimens agree in all details with Molpadia liska as characterised by Pawson (1977): body wall and tail deposits similar, exclusively tables with solid spires composed of three fused pillars, with usually three perforations but often with more up to a maximum of eight. Table deposit diameters of the current specimens are also in accordance with the table sizes as presented by Pawson (Tab. 2). There is only one other species known to possess similar table deposits in the body wall and in the tail: Molpadia discors Pawson, 1977. This species differs from Molpadia liska by its invariable number of three holes per table, which in Molpadia liska may be up to eight or nine (Pawson 1977). Another closely related species, which may result in misidentifications, is Molpadia blakei (Théel, 1886), which with certainty is known from the northern Atlantic deepsea (Pawson et al. 2001). This species differs from M. liska by the presence of fusiform rods (mean length: 256) in the tail, which are perforated by large holes and have a low spire (Pawson et al. 2001). TABLE 2. Molpadia liska Pawson, 1977. Means, standard deviations (in parentheses) and range of diameter of tables from body wall (D bw,) and from tail (D t,) compared to range of mean values as presented by Pawson (1977) for the type specimens. n —number of measurements. This is the first record of this species for the Atlantic Ocean, and the known depth range is considerably increased from 4740 to more than 5420 m. Distribution. (Fig. 11) Southeastern Atlantic Ocean, southwestern Pacific Ocean and Southern Ocean, 3111–5426 m (Pawson 1977; herein).Published as part of Bohn, Jens Michael, 2006, Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin — Results of the DIVA 1 expedition of FS " Meteor " (Cruise M 48 / 1), pp. 1-31 in Zootaxa 1276 on pages 19-21, DOI: 10.5281/zenodo.17333
Richardson School Class of 1920
No full textCopy photograph of 41 students and teachers from Richardson School Class of 1920. They are standing in five rows in front of a brick building. They are identified as (left to right, back row) Graham Pierce, Miss Beulah Brown (teacher), Mamie Floyd, Sam Jinks, W. T. Galloway (principal), Mary Campbell, Irene Cain, Walter Fender, Asia Whittenburg, Iva Rippy, (third row) Lillie Terry, Ola Christie, Glenn Huffhines, Clarence Reddick, Ollie Ballard, Amer/Omar Whittenburg, Odie Offutt, Amy Chick, Florence Jackson, (second row) Mary Price, Rosa Lee Christie, Liska Arnold, Mary Ashby, Dorothy Scott, Carrie Lee Ashby, Martin Parks, Willie McIlvan, Norma Watson, (first row) Frank Bowser, Effie McGee, Thelma Robinson, Wilburn Rose, E. L. Certain, Faye Robinson, Bess Ashby, Jack Rowland, Ray Smith, and Cecil Davis
Le modèle socio-économique de « l'entreprise socialiste » proposé par Tibor Liska
No full textTibor Liska's Socio-economic Model of the «Socialist Enterprise».
The existence of a free market, realistic monetary relationships, freedom of competition and of enterprise are the basic perequisites for the functioning of Liska's model. The latter is based on two fundamental principles, that of "personal social property" and "social heritage", in which Liska develops the idea of the right of enterprise, as a right proper to all citizens, which leads in turn to the original feature of this particular model, namely the idea of putting enterprises out to auction. These are "knocked down" to the highest bidder, that is the individual who offers to make the highest profit, and undertakes to fulfil to the highest degree the profitability potential of the unit in question. Inevitably, the operation of such a model raises certain theoretical and practical problems, which the author of the article duly analyses.La présence du marché libre, des relations monétaires réelles, de la liberté de compétition et d'entreprendre constituent les prémisses indispensables pour rendre le modèle de Liska opérationnel.
Celui-ci repose sur deux principes fondamentaux : la « propriété sociale personnelle » et 1' « héritage social », que l'auteur explicite en développant notamment la notion de droit d'entreprendre, un droit appartenant à tous les citoyens, qui débouche sur une pratique qui fait l'originalité du modèle : la mise à l'enchère d'entreprises. Celles-ci sont adjugées au dernier enchérisseur, c'est-à-dire à la personne qui offre le plus haut résultat de profit et s'engage à réaliser la plus haute réévaluation de la capacité de rentabilité de l'unité concernée. Le fonctionnement du modèle n'est pas sans soulever des problèmes, d'ordre théorique et pratique, que l'auteur de l'article recense comme il se doit.Dezsényi -Gueullette Agota. Le modèle socio-économique de « l'entreprise socialiste » proposé par Tibor Liska. In: Revue d'études comparatives Est-Ouest, vol. 14, 1983, n°1. pp. 23-28
A Dual Role for Hyperbaric Oxygen in Stroke Neuroprotection: Preconditioning of the Brain and Stem Cells
No full textStroke continues to be an extremely prevalent disease and poses a great challenge in developing safe and effective therapeutic options. Hyperbaric oxygen therapy (HBOT) has demonstrated significant pre-clinical effectiveness for the treatment of acute ischemic stroke, and limited potential in treating chronic neurological deficits. Reported benefits include reductions in oxidative stress, inflammation, neural apoptosis, and improved physiological metrics such as edema and oxygen perfusion, all of which contribute to improved functional recovery. This pre-clinical evidence has failed to translate into an effective evidence-based therapy, however, due in large part to significant inconsistencies in treatment protocols and design of clinical studies. While the medical community works to standardize clinical protocols in an effort to advance HBOT for acute stroke, pre-clinical investigations continue to probe novel applications of HBOT in an effort to optimize stroke neuroprotection. One such promising strategy is HBOT preconditioning. Based upon the premise of mild oxidative stress priming the brain for tolerating the full-blown oxidative stress inherent in stroke, HBOT preconditioning has displayed extensive efficacy. Here, we first review the pre-clinical and clinical evidence supporting HBOT delivery following ischemic stroke and then discuss the scientific basis for HBOT preconditioning as a neuroprotective strategy. Finally, we propose the innovative concept of stem cell preconditioning, in tandem with brain preconditioning, as a promising regenerative pathway for maximizing the application of HBOT for ischemic stroke treatment
Man kann verjuden : Paradoxes of Exemplarity
No full text’One can become a Jew, like one can become a human being; one can Jewify, and, I would like to add, from experience: today most of all in German… Becoming Jewish: that is becoming other.’ This sentence in Paul Celan’s preliminary notes for his ‘Meridian’ speech performs the paradoxical gesture of naming a universal human capacity in terms of a particular culture, tradition or ethnic group. The complexity arising from Celan’s lines pertains to what Jacques Derrida, in his ‘Philosophical Nationality’ seminars calls the ‘paradox of exemplarity’. For Derrida, such statements present a welcome tertium datur that would resolve both the ego-centric chauvinism of particularism and the disregard of cultural differences characteristic of universalist discourses. Derrida sees in what he calls ‘the German-Jewish phenomenon’ an especially powerful expression of this dynamic. Based on texts by Derrida, Celan, Freud, and others, this lecture explored the German-Jewish situation in terms of the question of exemplarity and, more generally, the specific potential of literature to confound the dichotomy between the universal and the particular. Vivian Liska is full professor of German Literature and director of the Institute of Jewish Studies at the University of Antwerp, Belgium. Her research focuses on German and comparative modernist literature, German-Jewish literature and thought, and literary theory. Recent book publications: As editor or co-editor: Modernism (2007), The Power of the Sirens (2007), Contemporary Jewish Writing in Europe (2007); What does the Veil Know? (2009). As author: Giorgio Agambens leerer Messianismus (2008); When Kafka says We: Uncommon Communities in German-Jewish Literature (2009), and Fremde Gemeinschaft. Deutsch-jüdische Literatur der Moderne (2011)
Talking Back to White Feminism: An Intersectional Review
No full textFeminism, despite being a lens through which we are meant to deconstruct oppressive assumptions, is all too often complicit in the Othering thinking that subjugates non-white and “Third World” peoples. The third-wave term “white feminism” addresses this white- and Western-centricity, critiquing the discourse’s tendency to, while liberating women of the white middle class, perpetuate the subjugation of women of colour in the West and across the globe. This literature review summarizes “Difference: A Special Third-World Women’s Issue” (1987) by Trinh T. Minh-Ha and “Under Western Eyes: Feminist Scholarship and Postcolonial Discourses” (1988) by Chandra Talpade Mohanty, two foundational postcolonial texts that discuss Western feminist discourse’s tendency to speak for and, in doing so, silence women of colour. The review provides modern-day examples of racism within mainstream Western feminism and calls upon white feminists to listen to women of colour, not speak for them, in order to build an inclusive, justice-based movement.
SHERRI LISKA is an English Major, writing tutor, and the Literary Society president at Huron University College. Her scholarly interests include postcolonial and feminist literature, but cats are her first love; she patiently awaits Huron’s ratification of a Cat Lady Master’s program
Direct 3D printing of polyester and polycarbonate networks
No full textPolyesters and polycarbonates are versatile (bio)degradable materials, which are particularly interesting for biomedical applications. Therefore, their manufacturing via stereolithographic methods such as laser- or digital light printing stereolithography is highly desirable for the customized fabrication of degradable biomedical devices.
However, traditional stereolithographic processes are highly dependent on the reactivity and viscosity of photosensitive resins, particularly when printing macroscopic constructs. Therefore, typically utilized photopolymerization methods rely on radical photopolymerization. While mixed photopolymerization via radical and cationic mechanisms became available a while ago via photoacid generators, which form radical cation intermediates and subsequently cations upon irradiation, 3D printing via purely cationic photopolymerization remained elusive until recently. Now, pure epoxide resins can be printed via cationic ring-opening polymerization in stereolithography. However, ring-opening polymerizations are dependent on ring strain and prone to side reactions, limiting their reactivity drastically compared to radical photopolymerization.
This is particularly limiting when polymerizing larger rings with more versatile functionality, such as lactones, cyclic carbonates, spiro-orthoesters or spiro-orthocarbonates. With the rise of hot lithography, such monomers become printable for the first time due to increased reactivity at elevated temperatures. We have demonstrated 3D printing of pure polyesters [1-2] and polycarbonates [3] via ionic ring-opening polymerization. In-depth photopolymerization analysis has elucidated the pathways of ionic polymerization reactions at high temperatures. Bulk photopolymeric specimens of different compositions have been analysed with respect to their thermomechanical properties, revealing easy tuneability within a wide range of mechanical properties. Furthermore, volumetric shrinkage of bulk specimens was eliminated entirely through double ring-opening photopolymerization of spiro-monomers. Finally, successful 3D printing via cationic photopolymerization has been demonstrated.
References
[1] Mete, Y.; Seidler, K.; Gorsche, C.; Koch, T.; Knaack, P.; Liska, R., Polymer International 2022, 71 (9), 1062-1071.
[2] Kojic, D.; Ehrmann, K.; Wolff, R.; Mete, Y.; Koch, T.; Stampfl, J.; Baudis, S.; Liska, R. Polymer Chemistry 2023, 14 (42), 4809-4818.
[3] Schandl, S.; Koch, T.; Stampfl, J.; Ehrmann, K.; Liska, R. Reactive and Functional Polymers 2023, 182, 105460
Dynamic Factors in the Presence of Block Structure
No full textMacroeconometric data often come under the form of large panels of time series, themselves decomposing into smaller but still quite large subpanels or blocks. We show how the dynamic factor analysis method proposed in Forni et al (2000), combined with the identification method of Hallin and Liska (2007), allows for identifying and estimating joint and block-specific common factors. This leads to a more sophisticated analysis of the structures of dynamic interrelations within and between the blocks in such datasets, along with an informative decomposition of explained variances. The method is illustrated with an analysis of the Industrial Production Index data for France, Germany, and Italy.Panel data; Time series; High dimensional data; Dynamic factor model; Business cycle; Block specific factors; Dynamic principal components; Information criterion.
PERBANDINGAN PENGARUH PENGGUNAAN SIMULATOR CISCO PACKET TRACER DAN GRAPHICAL NETWORK SIMULATOR 3 (GNS3) SEBAGAI MEDIA PEMBELAJARAN TERHADAP PRESTASI BELAJAR SISWA KELAS XI PADA MATA PELAJARAN INSTALASI JARINGAN LAN DI SMK NEGERI 1 SUKOHARJO
No full textLiska Mey Ika Sari. K3513033. Perbandingan Pengaruh Penggunaan Simulator Cisco Packet Tracer Dan Graphical Network Simulator 3 (GNS3) Sebagai Media Pembelajaran Terhadap Prestasi Belajar Siswa Kelas XI Pada Mata Pelajaran Instalasi Jaringan Lan Di SMK Negeri 1 Sukoharjo Skripsi, Surakarta : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta, Oktober 2017. Penelitian ini bertujuan untuk (1) Untuk mengetahui perbedaan prestasi belajar siswa yang mengikuti pembelajaran dengan menggunakan simulator Cisco Packet Tracer dan yang mengikuti pembelajan dengan menggunakan simulator GNS3 sebagai media pembelajaran Instalasi jaringan LAN. (2) Untuk mengetahui peningkatan prestasi siswa yang menggunakan simulator Cisco Packet Tracer dan GNS3 pada mata pelajaran Instalasi Jaringan LAN kelas XI TKJ di SMK Negeri 1 Sukoharjo Populasi dalam penelitian ini adalah seluruh peserta didik kelas XI SMK Negeri 1 Sukoharjo. Sampel yang digunakan adalah kelas XI TKJ1 dan XI TKJ2. Teknik pengambilan sampel menggunakan total sampling atau sampel jenuh. Penelitian ini merupakan jenis penelitian kuantitatif dengan desain penelitian yang digunakan adalah Quasi Experimental Design dengan rancangan Nonequivalent Control Group Design. Pengumpulan data dilakukan dengan tes untuk mengukur prestasi peserta didik. Analisis data menggunakan uji t dan analisis indeks gain. Hasil penelitian adalah sebagai berikut : (1) Penggunaan media pembelajaran berpengaruh yang positif dan signifikan antara penerapan media pembelajaran simulator Cisco Packet Tracer dan GNS3 terhadap prestasi belajar siswa pada mata pelajaran Installasi Jaringan LAN. Hasil Uji T membuktikan bahwa ada perbedaan pengaruh yang positif dan signifikan antara penerapan media pembelajaran simulator cisco packet tracer dan GNS3 terhadap prestasi belajar siswa pada mata pelajaran Installasi Jaringan LAN dengan hasil sig0,000 ttabel (3,969 > 1,667) pada taraf sig 0,05. (2) Peningkatan prestasi belajar kelas eksperimen lebih tinggi dibandingkan dengan kelas kontrol. Hasil uji indeks gain membuktikan bahwa Peningkatan prestasi belajar kelas eksperimen lebih tinggi dibandingkan dengan kelas kontrol. Kelas eksperimen yang diberi perlakuan penerapan GNS3 mengalami peningkatan 0,35 dengan kategori sedang. Sedangkan kelas Kontrol yang diberi perlakuan penerapan Cisco packet tracer mengalami peningkatan sebesar 0,11 dengan kategori rendah. Kata Kunci : Simulator Jaringan, Cisco Packet Tracer , GNS3, Installasi Jaringan LAN dan Prestasi Belajar
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