188,418 research outputs found

    Comparison between a phenomenological approach and a morphoelasticity approach regarding the displacement of extracellular matrix

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    Plastic (permanent) deformations were earlier, modeled by a phenomenological model in Peng and Vermolen (Biomech Model Mechanobiol 19(6):2525–2551, 2020). In this manusctipt, we consider a more physics-based formulation that is based on morphoelasticity. We firstly introduce the morphoelasticity approach and investigate the impact of various input variables on the output parameters by sensitivity analysis. A comparison of both model formulations shows that both models give similar computational results. Furthermore, we carry out Monte Carlo simulations of the skin contraction model containing the morphoelasticity approach. Most statistical correlations from the two models are similar, however, the impact of the collagen density on the severeness of contraction is larger for the morphoelasticity model than for the phenomenological model.Numerical Analysi

    On the divergence difficulty of quantized field theories and the rigorous treatment of radiation reaction : with related additional papers

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    By an orthodox application of the perturbation theory to the general case of a quantized field, it is shown that the divergence difficulty hitherto encountered arises from a faulty application of the expansion method. The difficulty disappears if the degeneracy of the unperturbed system is properly treated by the method of secular perturbation. Physically, it is shown that this amounts to a rigorous treatment of the radiation reaction.On the divergence difficulty of quantized field theories and the rigorous treatment of radiation reaction || Anomalous Scattering of Mesons / W. Heitler and H.W. Peng. Reprinted from The Physical Review, Vol. 62, Nos. 1 and 2, 81-82, July 1 and 15, 1942 || On the production of mesons by proton-proton collisions / W. Heitler and H.W. Peng. Proceedings of the Royal Irish Academy Vol. XLIX, Section A, No. 7 || On the Production of Mesons by Light Quanta and Related Processes / by J. Hamilton and H. W. Peng. Proceedings of the Royal Irish Academy Vol. XLIX, Section A, No. 11 || On the cascade production of mesons / H. W. Peng. Proceedings of the Royal Irish Academy Vol. XLIX, Section A, No. 14 || Theory of cosmic-ray mesons / J. Hamilton, W. Heitler, and H. W. Peng. Reprinted from The Physical Review, Vol. 64, Nos. 3 and 4, 78-94, August 1 and 15, 1943 || Quantum Mechanics of Fields. 1. Pure Fields / by Professor Max Born, F.R.S., and H. W. Peng. [Proceedings of the Royal Society of Edinburgh Section A: Mathematics. Volume 62, Issue 1, 1944 , pp. 40-57] || Statistical mechanics of fields and the 'apeiron'. Reprinted from Nature, vol. 153, page 164, February 5, 1944 || Quantum Mechanics of Fields. 11. Statistics of Pure Fields / by Professor Max Born, F.R.S., and H. W. Peng. Proceedings of the Royal Society of Edinburgh Section A: Mathematics. Volume LXII, Part 1 (no. 12) || Quantum Mechanics of Fields. Ill. Electromagnetic Field and Electron Field in Interaction / by Professor Max Born, F.R.S., and H. W. Peng. Proceedings of the Royal Society of Edinburgh Section A: Mathematics. Volume LXII, Part II (no. 15) || The Divergence Difficulty of Quantized Field Theories. Reprinted from Nature, vol. 154, page 544, October 28, 1944

    Blokada okołopanewkowej grupy nerwów (PENG) w zabiegach w obrębie stawu biodrowego. Przegląd narracyjny

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    Introduction. Perioperative pain management associated with hip surgery is challenging. The pericapsular nerve group (PENG) block is a new technique thought to provide better postoperative analgesia in addition to its motor-sparing effects. Aim. This review aims to evaluate the safety and efficacy of the PENG blockade in managing postoperative pain in patients undergoing hip surgery. Methods. The literature was reviewed through four electronic databases: PubMed, Cochrane Library, Google Scholar, and Embase. Results. The initial search yielded 416 articles. Twenty-seven relevant articles were selected based on relevance, recentness, search quality, and citations. Twelve of the studies were related to patients undergoing total hip arthroplasty. Twelve studies were related to patients undergoing total hip surgery due to hip fracture. Finally, three studies were related to patients undergoing hip arthroscopy. Conclusions. The PENG block provides superior analgesia and low opioid consumption in the first postoperative period. However, current evidence is insufficient, and there is a need for high-quality randomized, controlled trials with larger sample sizes.Wstęp. Leczenie bólu okołooperacyjnego związanego z operacją stawu biodrowego jest bardzo wymagające. Blokada grupy nerwów okołopanewkowych (PENG) to nowa technika anestezji regionalnej, która zapewnia lepszą analgezję pooperacyjną, nie upośledzając funkcji motorycznych. Cel. Celem tego przeglądu jest ocena bezpieczeństwa i skuteczności blokady PENG w leczeniu bólu pooperacyjnego u pacjentów poddawanych operacjom stawu biodrowego. Metody. Literatura została przejrzana za pośrednictwem czterech elektronicznych baz danych: PubMed, Cochrane Library, Google Scholar i Embase. Wyniki. Wstępne wyszukiwanie przyniosło 416 artykułów. Wybrano dwadzieścia siedem odpowiednich artykułów na podstawie trafności, aktualności, jakości wyszukiwania i cytowań. Dwanaście badań dotyczyło pacjentów poddawanych całkowitej alloplastyce stawu biodrowego z powodu zaawansowanej choroby zwyrodnieniowej. Dwanaście badań dotyczyło pacjentów poddawanych całkowitej operacji stawu biodrowego z powodu złamania szyjki kości udowej. Wreszcie trzy badania dotyczyły pacjentów poddawanych artroskopii stawu biodrowego. Wnioski. Blokada PENG zapewnia lepszą analgezję i niskie zużycie opioidów w bezpośrednim okresie pooperacyjnym. Jednak obecne dowody są niewystarczające i istnieje potrzeba przeprowadzenia wysokiej jakości randomizowanych badań kontrolowanych z większymi próbami

    Peng (Stephen) Xue

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    1 b&w photograph.Excellent condition photograph.Head shot of Peng (Stephen) Xue, commerce student and co-op member at SMU.Written on back: 'Peng (Stephen) Xue came all the way from Beijing, China to attend Saint Mary's commerce program'; 'Peng (Stephen) Xue'; 'Nov/94'; '800.3'Date Catalogued: Apr. 12/1

    Wolongia odontodes Zhao, Yin & Peng 2009

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    <i>Wolongia odontodes</i> Zhao, Yin & Peng, 2009 <p>(Figs 21–24, 35)</p> <p> <i>Wolongia odontodes</i> Zhao, Yin & Peng, 2009: 18, f. 1–8.</p> <p> <b>Material examined: China, Yunnan:</b> 11 males and 1 female, Gongshan County, Dulongjiang Township, Longyuan Village, Bailai Group, 28º00ʹ33.0ʹ N, 98º19ʹ19.8ʹ E, 1676 m, 31 October to 3 November 2004, Guo Tang (HNU-Tang-04-06).</p> <p> <b>Diagnosis.</b> This species can be distinguished from other <i>Wolongia</i> species by the combination of the following characters: 1) tip of the conductor digitiform in ventral view (Figs 23 B, 25A); 2) conductor and embolus almost covering 2/3 of the genital bulb in ventral view (Figs 23 B, 25A); 3) cymbial base with a denticle retrolaterally (Figs 23 C, 25B); 4) atrium slightly wider than long (Figs 24 C, 26B); 5) spermatheca membranous (Figs 24 D, 26C); 6) copulatory ducts approach spermathecae from anterior-mesal angle (Figs 24 D, 26C). Females of this species are very similar to <i>W. mutica</i> n. sp., and the differences are discussed in the diagnosis of <i>W. mutica</i> n. sp..</p> <p> <b>Distribution:</b> China (Yunnan).</p>Published as part of <i>Wan, Jin-Long & Peng, Xian-Jin, 2013, The spiders of the genus Wolongia Zhu, Kim & Song, 1997 from China (Araneae: Tetragnathidae), pp. 87-134 in Zootaxa 3691 (1)</i> on page 94, DOI: 10.11646/zootaxa.3691.1.3, <a href="http://zenodo.org/record/247642">http://zenodo.org/record/247642</a&gt

    Prof. Th. W. Adorno and the author Hans Erich Nossack.

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    Prof. Th. W. Adorno and the author Hans Erich Nossack at a reception of Insel Verlag, Buchmesse Frankfurt 1966LB

    Nowe spojrzenie na planowanie architektury mieszkaniowej w afryce subsaharyjskiej

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    The author shares his reflections on state of art in housing and urban planning, deficiencies, expectations and possibilities in the Sahel region of Africa. He notices, that the housing problem in Africa is one of the challenges, which should be solved in order to recover life dignity of African people and secure their rights to traditional family life in acceptable conditions. The paper describes the studies on the typical dispersed urban structures and the need to foster this type of settlement structure and proposals of introduction of new on light steel frame housing system in the area of Sahel, combining the traditional way of building houses with modern technology. The particularly analysed case, is the housing problem in the Republic of Chad. The author presents the basic discussion on this topic and his architectural proposals. Unfortunately, the gap between the needs and the financial feasibility of housing construction in this area, makes this project already at the starting point extremely difficult to be realized without external subventions.Problem mieszkaniowy w Afryce jest jednym z wyzwań, które należy rozwiązać, aby Afrykanie mogli odzyskać godność życiową i zabezpieczyć swoje prawa do tradycyjnego życia rodzinnego w akceptowalnych warunkach. W artykule opisano badania nad typowymi rozproszonymi strukturami miejskimi i potrzebą wspierania tego typu struktur osadniczych oraz propozycji wprowadzenia nowego systemu konstrukcji domów, opartym na lekkim szkielecie stalowym, łączącym tradycyjny sposób budowania domów z nowoczesną technologią. Przypadkiem szczególnie analizowanym jest problem mieszkaniowy w Republice Czadu. Autor przedstawia podstawową dyskusję na ten temat i swoje propozycje architektoniczne. Niestety luka między potrzebami mieszkaniowymi w Czadzie a finansową wykonalnością budownictwa mieszkaniowego w tym obszarze sprawia, że projekt ten, już w punkcie wyjścia, jest niezwykle trudny do realizacji bez uzyskania zewnętrznych dotacji

    Epilachna paralobiera Peng, Pang et Pang 2001

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    Epilachna paralobiera Peng, Pang et Pang, 2001 Specimens examined. Hainan: Hainan Is South Vhina Tai-tsing-lam-ts'uen back of Tai-Mo-ling Ting An, 1933.vi. 22, F.K. To (1, SYSM).Published as part of Pang, Hong, Ślipiński, Adam, U, Yap Ing W & Zuo, Yongsheng, 2012, Contribution to the knowledge of Chinese Epilachna Chevrolat with descriptions of new species (Coleoptera: Coccinellidae: Epilachnini), pp. 1-37 in Zootaxa 3420 (1) on page 22, DOI: 10.11646/zootaxa.3420.1.1, http://zenodo.org/record/28196

    Seeing the world anew : the radical vision of Martin Waldseemüller's 1507 & 1516 world maps /

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    9781929154470 (ISBN). 192915447X (ISBN). First edition 2012. Accompanied by 2 foldeds map in front and back pockets: 1507 map -- 1516 map.; Includes bibliographical references: pages 98-107.; Maps from pockets also available online http://nla.gov.au/nla.map-vn6254227; Original version of the 1507 map: Universalis cosmographiae secundum Ptholomaei traditionem et Americi Vespucii alioru que lustrationes. [St. Dié, France? : s.n., 1507]; Original version of the 1516 map: Carta marina, navigatoria Portugallen, navigationes atque tocius cogniti orbis terre marisque formam naturamq[u]e situs et terminos nostris temporibus recognitos et ab antiquorum traditione differentes eciam quor[um] vetusti non meminerunt auctores hec generaliter indicat / consumatum est in oppido S. Deodati compositione et digestione Martini Waldseemuller Ilacomili. [St. Dié, France? : s.n., 1516]. Prologue: In a Renaissance Vision, a Glimpse of the Modern / John W. Hessler -- "An island surrounded on all sides by sea" : The World Map, 1507 / John W. Hessler -- "Land of Cuba, part of Asia" : The Carta marina, 1516 / Chet Van Duzer -- Epilogue: A Renaissance That Resonates Still / John W. Hessler -- Notes -- Afterword / Ralph E. Ehrenberg -- About the authors -- Acknowledgments -- The Maps: The 1507 World Map, 12 sheets, with commentary -- Composite: front pocket -- The 1516 Carta marina, 13 sheets, with commentary -- Composite: back pocket
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