727 research outputs found

    Kappa-contraction from SUq(2)SU_q(2) to Eκ(2)E_{\kappa}(2)

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    We present contraction prescription of the quantum groups: from SUq(2)SU_q(2) to Eκ(2)E_{\kappa}(2). Our strategy is different then one chosen in ref. [P. Zaugg, J. Phys. A {\bf 28} (1995) 2589]. We provide explicite prescription for contraction of a,b,ca, b, c and dd generators of SLq(2)SL_q(2) and arrive at ^* Hopf algebra Eκ(2)E_{\kappa}(2).Comment: 3 pages, plain TEX, harvmac, to be published in the Proceedings of the 4-th Colloqium Quantum Groups and Integrable Systems, Prague, June 1995, Czech. J. Phys. {\bf 46} 265 (1996

    Perioperative Strategien zur Regulierung des Sympathikotonus

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    Zusammenfassung: Obwohl für verschiedene therapeutische Konzepte zur Verminderung der kardialen perioperativen Morbidität und Mortalität zunehmend Evidenz vorliegt, bleibt die tatsächliche Umsetzung solcher Konzepte im klinischen Alltag oft aus. Zwar ist einem großen Teil der klinisch tätigen Ärzte die wachsende Literatur bekannt; dieses Wissen wird aber nur in einem Teil der Fälle angewendet, selbst wenn allgemein akzeptierte Indikationen bestehen. Die vorliegende Übersichtsarbeit hat deshalb zum Ziel, die Gründe für die mangelnde Umsetzung aufzuzeigen und nochmals die wesentlichen Grundlagen sowie die klinische Bedeutung einzelner Strategien einschließlich des α2-Agonismus, der β-adrenergen Blockade und der Regionalanästhesien zusammenzufassen. Dies insbesondere im Hinblick auf die klinische Anwendung dieser Konzepte in einem allgemeinanästhesiologischen Umfeld. Zudem wird ein Ausblick in die auf "gene profiling" basierende individualisierte Pharmakotherapie der perioperativen Medizin von morgen gegebe

    Sainfoin – New Data on Anthelmintic Effects and Production in Sheep and Goats

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    Gastrointestinal nematodes (GIN) are one of the most important problems affecting health and therefore performance and welfare in small ruminant husbandry. The control of these parasites in the past strongly relied on the repeated use of anthelmintic drugs. This has led to nematode populations which are resistant to most of the currently available anthelmintics. Furthermore customer’s demands for organic and residue free animal products are increasing. The aforementioned problems have given a strong impetus for the development of new non-chemical strategies to control GIN. Previous research has pointed out the anthelmintic potential of sainfoin (Onobrychis viciifolia) and other tanniferous (CT) feed sources in goats and lambs infected with GIN. A recent Swiss experiment focussed on the use of sainfoin and field bean (Vicia faba, cv. Scirocco) as single CT sources as well as in combination for additional synergic effects, to reduce periparturient GIN egg rise of ewes in late gestation and early lactation. Another experiment with Alpine goats concentrated on the influence of sainfoin on milk performance and cheese quality. The results of these experiments will be presented and discussed in connection with previous knowledge on (i) anthelmintic effects of sainfoin and (ii) the influence of sainfoin administration on performance

    Converbs, Medial Verbs, Clause Chaining and Related Issues

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    This volume grew out of a workshop on "Converbs, medial verbs, clause chaining and related issues" held at Leiden University on 8th December 2006, which was cosponsored by the Swiss National Science Fotmdation (SNF) project "Functional typology of Ethiopian languages" (no. 100012-\09306). That occasion brought together specialists working on a range of languages spoken in a circle that spans from New Caledonia via India to Ethiopia and Mozambique. All while struggling to find a common language to talk about phenomena that are so pervasive in our respective languages of investigation, our discussions greatly benefited from the pooling of experiences in fields between which scientific exchange is often obstructed by the boundaries of various traditions. Far from adhering all to one theory or perspective, we hope that bringing together the following articles in one volume will provide new data and insights for tile already lively discussion around converbs, medial verbs and related issues. We wish to thank the editorial board of the Frankfurter Afrikanistische Blatter for accepting this volume in their journal and for their willingness to publish articles that go beyond African languages. In the same vein, we wish to thank all contributors to this volume, and especially our non-Africanist colleagues that have crossed one or more continental and disciplinary divides by publishing in this journal. Special mention and thanks are due to Sascha Völlmin, who did the layout of the whole volume. Finally, we hereby gratefully acknowledge the financial and logistical support of the workshop by the Institute of African Languages and Cultures, Leiden, and the Swiss National Science Foundation

    Partial pulpotomy without age restriction: a retrospective assessment of permanent teeth with carious pulp exposure

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    OBJECTIVES This study aimed to retrospectively evaluate clinical and radiographic outcomes of partial pulpotomy performed in permanent teeth with carious pulp exposure. MATERIALS AND METHODS Records of patients undergoing treatment at an undergraduate dental clinic between 2010 and 2019 were screened for partial pulpotomies in teeth with a presumptive diagnosis of normal pulp or reversible pulpitis. The follow-up had to be ≥ 1 year. Patient data were retrieved and analyzed using Mantel-Cox chi square tests and Kaplan-Meier statistics. The level of significance was set at α = 0.05. RESULTS Partial pulpotomy was performed in 111 cases, of which 64 (58%) fulfilled the eligibility criteria. At the time of partial pulpotomy, the mean age was 37.3 (± 13.5) years (age range 18-85). The mean observation period was 3.1 (± 2.0) years. Two early failures (3.1%) and five late failures (7.7%) were recorded. The overall success rate of maintaining pulp vitality was 89.1%, with 98.4% tooth survival. The cumulative pulp survival rates of partial pulpotomy in patients aged  40 years were 100%, 75.5%, and 90.5%, respectively, with no significant difference between the age groups (p = 0.225). At follow-up, narrowing of the pulp canal space and tooth discoloration were observed in 10.9% and 3.1% of cases, respectively. CONCLUSIONS Across age groups, partial pulpotomy achieved favorable short and medium-term outcomes in teeth with carious pulp exposure. CLINICAL RELEVANCE Adequate case selection provided, partial pulpotomy is a viable operative approach to treat permanent teeth with deep carious lesions irrespective of patients' age
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