317,491 research outputs found
Quartz Microbalance Study of Hydrogen and Helium Adsorbed On A Rubidium Surface
No full textAdsorption isotherms of H-2 and He-4 on Rb measured with a quartz microbalance are presented. They clearly show sharp prewetting transitions. For H-2 on Rb a wetting temperature T(W)= 17.89+/-0.04K is found. He-4 isotherms below the lambda point show the characteristic frequency drop due to superfluid onset
Chan An Ancient Maya Farming Community
No full textThe farming community of Chan thrived for over twenty centuries, surpassing the longevity of many larger Maya urban centers. Between 800 BC and 1200 AD it was a major food production center, and this collection of essays reveals the important role played by Maya farmers in the development of ancient Maya society. Chan offers a synthesis of compelling and groundbreaking discoveries gathered over ten years of research at this one archaeological site in Belize. The contributors develop three central themes, which structure the book. They examine how sustainable farming practices maintained the surrounding forest, allowing the community to exist for two millennia. They trace the origins of elite Maya state religion to the complex religious belief system developed in small communities such as Chan. Finally, they describe how the group-focused political strategies employed by local leaders differed from the highly hierarchical strategies of the Classic Maya kings in their large cities. In breadth, methodology, and findings, this volume scales new heights in the study of Maya society and culture.Cover -- Title -- Copyright -- Contents -- List of Figures -- List of Tables -- Foreword -- Acknowledgments -- 1. Introducing the Chan Site: Farmers in Complex Societies -- Part 1. Time, Space, and Landscapes -- 2. A Changing Cultural Landscape: Settlement Survey and GIS at Chan -- 3. Ceramics and Chronology at Chan -- 4. Agricultural Practices at Chan: Farming and Political Economy in an Ancient Maya Community -- 5. Agroforestry and Agricultural Production of the Ancient Maya at Chan -- Part 2. Life in a Farming Community Center -- 6. Ritual in a Farming Community -- 7. Nonroyal Governance at Chan's Community Center -- 8. "Empty" Spaces and Public Places: A Microscopic View of Chan's Late Classic West Plaza -- Part 3. Diversity across the Chan Community -- 9. Recognizing Difference in Small-Scale Settings: An Examination of Social Identity Formation at the Northeast Group, Chan -- 10. Organization of Chert Tool Economy during the Late and Terminal Classic Periods at Chan: Preliminary Thoughts Based upon Debitage Analyses -- 11. Limestone Quarrying and Household Organization at Chan -- Part 4. Bodies, Material Culture, and Meaning -- 12. The Chan Community: A Bioarchaeological Perspective -- 13. Creating Community with Shell -- 14. Obsidian Acquisition, Trade, and Regional Interaction at Chan -- 15. Contextualizing Ritual Behavior: Caches, Burials, and Problematical Deposits from Chan's Community Center -- Part 5. Conclusion -- 16. Learning from an Ancient Maya Farming Community -- References -- List of Contributors -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- V -- W -- X -- YThe farming community of Chan thrived for over twenty centuries, surpassing the longevity of many larger Maya urban centers. Between 800 BC and 1200 AD it was a major food production center, and this collection of essays reveals the important role played by Maya farmers in the development of ancient Maya society. Chan offers a synthesis of compelling and groundbreaking discoveries gathered over ten years of research at this one archaeological site in Belize. The contributors develop three central themes, which structure the book. They examine how sustainable farming practices maintained the surrounding forest, allowing the community to exist for two millennia. They trace the origins of elite Maya state religion to the complex religious belief system developed in small communities such as Chan. Finally, they describe how the group-focused political strategies employed by local leaders differed from the highly hierarchical strategies of the Classic Maya kings in their large cities. In breadth, methodology, and findings, this volume scales new heights in the study of Maya society and culture.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
Hydrogen adsorption on alkali metal surfaces: Wetting, prewetting and triple-point wetting
No full textWe report the results of a quartz microbalance study of the multilayer adsorption of H-2 and D-2 on sodium and on rubidium. On sodium H-2 and D-2 display, the well known phenomenon of triple-point wetting. Interestingly low temperature adsorption isotherms of H-2 on the evaporated Na surface show sharp layering transitions. On rubidium a weaker substrate H-2 and D2 undergo a wetting transition in the liquid phase followed by sharp prewetting transitions away from liquid-vapor coexistence. The prewetting phase diagram of H-2 on Rb has been quantitatively mapped out
Quartz microbalance study of4He and H2 on sodium
No full textA quartz microbalance technique has been used to study the growth of He-4 and H-2 adsorbed on sodium. In contrast to cesium, adsorption of He-4 and H-2 do occur on a sodium surface
Dzieje kościoła rzymskokatolickiego w Temir-Chan-Szurze (Bujnaksk)
No full textW artykule zaprezentowano dzieje kościoła katolickiego w Temir Chan Szurze (obecny Bujnaksk) w Dagestanie, który został on wybudowany w pierwszej połowie XIX w. przez żołnierzy wyznania katolickiego, przede wszystkim pochodzenia polskiego, służących w wojsku carskim. Oparto się przy tym głównie na materiałach archiwalnych przechowywanych w Centralnym Archiwum Państwowym Republiki Dagestan w Machaczkale oraz wspomnieniach Polaków. W artykule poza tym przedstawiono pokrótce dzieje Polaków i katolicyzmu na Kaukazie.The article lays out the history of a Catholic church in Temirkhan-Shura (present-day Buynaksk), Dagestan, built in the first half of the nineteenth century by Catholic soldiers, mainly of Polish origin, serving in the tsarist army. The author relies primarily on the archival materials stored in the Central State Archive of the Republic of Dagestan in Makhachkala and on memories of Poles. The article also briefly presents the history of Poles and Catholicism in the Caucasus.В статье представлена история католического костела в Темир-ХанШуре (ныне Буйнакск) в Дагестане, построенного в первой половине XIX века солдатами-католиками, преимущественно польского происхождения, служившими в царской армии. В её основе лежат архивные материалы, хранящиеся в Центральном государственном архиве Республики Дагестан в Махачкале, и воспоминания поляков. В статье, кроме этого, кратко описана история поляков и католицизм на Кавказе
Pustka jako kategoria estetyczna. W kręgu tuszowego malarstwa buddyzmu chan
No full textEMPTINESS AS AN AESTHETIC CATEGORY. IN THE SPHERE OF THE BUDDHIST CHAN INK PAINTINGThe author of the article outlines a new interpretation of the Chinese monochromatic painting which had gained considerable fame and almost religious significance, within the sphere of meditative Buddhism of the Chan school. This type of painting was associated in the Chan school with the practical method leading to the attainment of enlightenment and a liberation from the Spinning Wheel of Incarnations. In the above interpretation, the author tries to justify the hypothesis which holds forth that the new techniques introduced into Mahayana Buddhism by the masters of Chan, among which one finds landscape ink painting, should be researched and understood in the context of aesthetic conceptions which originated in the ontologically interpreted Taoist philosophy. Such concepts as: wang (oblivion), wu (non-existence), kong (emptiness), xu (wilderness), xiaoyao you (carefree wanderings), in combination with the ancient, pragmatic theory of names and “signs without an echo”, allow one to interpret correctly the so called science of “direct instruction”, which this painting was to become for the students of the Chan theories
Coulter, Chan L., July 23, 1996 [Interview]
No full textProfessor of Philosophy Chan L. Coulter was interviewed on June 17, 1996, by Michael Birkner and David Hedrick about his career at Gettysburg College, including memorable colleagues, classes, and controversies.Dunn, Seymour B.; Glatfelter, Charles H.; Hanson, C. Arnold; Crapster, Basil L.; Barnes, Robert D.; Baskerville, Edward J.; Mara, Richard T.; Qually, Ingolf; Bugbee, Bruce W.; Richardson, Norman E.; Bolich, Harry F.; Arms, Richard A.; Mason, Francis C.; Taylor, Kathrine Kressmann; Schmidt, Emile O.; Glassick, Charles E.; Potts, David B.Willard S. Paul Years; Carl Arnold Hanson Years; Charles E. Glassick Years; Gordon A. Haaland Year
Wetting transitions of liquid hydrogen films
No full textCalculations are presented of the wetting properties of liquid hydrogen films on various substrates. The well depth D for the adsorption potential is even smaller for alkali metal substrates than for noble gas surfaces. A simple model calculation leads to the prediction that wetting transitions should then occur at a temperature T(w) about 20 K. Quartz microbalance data obtained for H-2 on Rb are consistent with this result. Specifically, T(w) is found to be 17.89 +/- 0.04 K. The wetting phase diagram is found to be in good agreement with thermodynamic expectations
LAUREN M. CHAN, JAMES W. ARCHIE, ANNE D. YODER & LEE A. FITZGERALD (2013) Review of the systematic status of Sceloporus arenicolus Degenhardt and Jones, 1972 with an estimate
No full textChan, Lauren M., Archie, James W., Yoder, Anne D., Fitzgerald, Lee A. (2013): LAUREN M. CHAN, JAMES W. ARCHIE, ANNE D. YODER & LEE A. FITZGERALD (2013) Review of the systematic status of Sceloporus arenicolus Degenhardt and Jones, 1972 with an estimate. Zootaxa 3686 (1): 99-100, DOI: 10.11646/zootaxa.3686.1.
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