scholarly journals Использование микроволновой спектроскопии для изучения состояния переохлажденной воды

2019 ◽  
Vol 21 (1) ◽  
pp. 16-23
Author(s):  
Georgy S. Bordonskiy ◽  
Aleksandr A. Gurulev ◽  
Sergey D. Krylov ◽  
Sergey V. Tsyrenzhapov
Keyword(s):  
Physical Chemistry ◽  
United States Of America ◽  
Condensed Matter ◽  
Water Structure ◽  
The United States ◽  
Theoretical Physics ◽  
Chemical Physics ◽  
National Academy Of Sciences ◽  
Academy Of Sciences ◽  
Technical Physics

Представлены методики экспериментов для изучения переохлажденной воды с использованием микроволновой спектроскопии. Одна методика связана с получением глубокого переохлаждения воды в порах силикатного материала, другая основана на получении аморфного состояния в образце пресного льда при его пластической деформации. Показаны возможности методик при изучении свойств переохлажденной воды. При атмосферном давлении и температуре –45 °С (на линии Видома) был определен интервал температур, в котором наблюдаются аномалии микроволновых потерь переохлажденной воды, находящейся в порах силикагеля. При пластической деформации поликристаллического льда наблюдали минимум фактора потерь в микроволновом диапазоне на линии Видома.     ЛИТЕРАТУРА Chaplin M. Water Structure and Science. URL: http://www.lsbu.ac.uk/water/chaplin.html (accessed 18 January 2019). Mishima O. Journal of Chemical Physics, 2010, vol. 133, no. 14, p. 144503/6. https://doi.org/10.1063/1.3487999 Xu L., Kumar P., Buldyrev S. V., Chen S.-H., Poole P. H., Sciortino F., Stanley H. E. Proceedings of the National Academy of Sciences of the United States of America, 2005, vol. 102, iss. 46, p. 16558-16562. https://doi.org/10.1073/pnas.0507870102 Franzese G., Stanley Н. E. Journal of Physics Condensed Matter, 2007, vol. 19, p. 205126/1-16. https://doi.org/10.1088/0953-8984/19/20/205126 Sellberg J. A., Huang C., McQueen T. A., Loh N. D., Laksmono H., Schlesinger D., Sierra R. G., Nordlund D., Hampton C. Y., Starodub D., Deponte D. P., Beye M., Chen C., Martin A. V., Barty A., Wikfeldt K. T., Weiss T. M., Caronna C., Feldkamp J., Skinner L. B., Seibert M. M., Messerschmidt M., Williams G. J., Boutet S., Pettersson L. G. M., Bogan M. J., Nilsson A. Nature, 2014, vol. 510, no. 7505, pp. 381-384. https://doi.org/10.1038/nature13266  Bordonskiy G. S., Krylov S. D. Russian Journal of Physical Chemistry A, vol. 86, iss. 11, pp. 1682-1688. https://doi.org/10.1134/S0036024412110064 Bordonskiy G. S., Gurulev A. A., Krylov S. D., Sigachev N. P., Schegrina K. A. Condensed Matter and Interphases, 2016, vol. 18, no. 3, pp. 304-311. https://journals.vsu.ru/kcmf/article/view/138/96 (in Russ.) Castrillón S. R.-V., Giovambattista N., Aksay U. A., Debenedetti P. G. Journal of Physical Chemistry B, 2009, vol. 113, iss. 23, pp. 7973-7976. https://doi.org/10.1021/jp9025392 Cerveny S., Mallamace F., Swenson J., Vogel M., Xu L. Chemical Reviews, 2016, vol. 116, iss. 13, pp. 7608-7625. https://doi.org/10.1021/acs.chemrev.5b00609 Gallo P., Rovere M., Chen S.-H. Journal of Physical Chemistry Letters, 2010, vol. 1, iss. 4, pp. 729-733. https://doi.org/10.1021/jz9003125 Menshikov L. I., Menshikov P. L., Fedichev P. O. Journal of Experimental and Theoretical Physics, vol. 125, iss. 6, pp. 1173-1188. https://doi.org/10.1134/s1063776117120056 Bordonskii G. S., Gurulev A. A., Krylov S. D. Journal of Communications Technology and Electronics, 59, iss. 6, pp. 536-540. https://doi.org/10.1134/s1064226914060060 Bordonskii G. S., Krylov S. D. Technical Physics Letters, vol. 43, iss. 11, pp. 983-986. https://doi.org/10.1134/s1063785017110025 Silonov V. M., Chubarov V. V. Journal of Surface Investigation, 2016, vol. 10, iss. 4, pp. 883-886. DOI: 10.1134/S1027451016030356 Bordonskii G. S., Gurulev A. A. Technical Physics Letters, vol. 43, iss. 4, pp. 380-382. https://doi.org/10.1134/s1063785017040174 Landau L. D., Lifshic E. M. Teoreticheskaya fizika. Tom. 5. Statisticheskaya fizika. CHast' 1. M.: Fizmatlit Publ., 2002, 616 p. (in Russ.). Orlov A. O. Vestnik Zabajkal'skogo gosudarstvennogo universiteta, 2016, vol. 22, no. 8, pp. 14-20. (in Russ.) Nagoe A., Kanke Y., Oguni M., Namba S. Journal of Physical Chemistry B, 2010, vol. 114, iss. 44, pp. 13940-13943. https://doi.org/10.1021/jp104970s Zuev L. B. Fiz. Met., 2015, vol. 16, no. 1, pp. 35–60. (in Russ.).

Contrastive Analysis of Hedges in a Sample of Chinese and English Molecular Biology Papers

2004 ◽  
Vol 95 (2) ◽  
pp. 487-493
Author(s):  
Xiaofang Gao
Keyword(s):  
United States ◽  
Molecular Biology ◽  
United States Of America ◽  
The United States ◽  
Contextual Analysis ◽  
Contrastive Analysis ◽  
National Academy Of Sciences ◽  
Spoken Discourse ◽  
Academy Of Sciences ◽  
Chinese And English

Hedge is defined as the expression of provisionalness and possibility that makes scientific messages tentative, vague, and imprecise, thereby reducing the force of claims scientists make. Linguistic study of hedges began in the early 1970s in generative semantics. Since then, the focus has shifted from seeking linguistic properties in spoken discourse to analyzing its pragmatic functions in written contextual communication. The purpose of this paper was to analyze hedges in Chinese and English scientific articles from the perspective of contrastive pragmatics. Based on a contextual analysis of 5 Chinese and 5 English scientific articles, selected randomly, from two journals in molecular biology— Science in China and Proceedings of the National Academy of Sciences of the United States of America, there were significant differences between Chinese and English scientific articles in use of hedges.

scholarly journals The conceptual structure of face impressions

2018 ◽  
Author(s):  
Ryan Mayer Stolier ◽  
Eric Hehman ◽  
Matthias David Keller ◽  
Mirella Walker ◽  
Jonathan B. Freeman
Keyword(s):  
United States ◽  
United States Of America ◽  
The United States ◽  
Conceptual Structure ◽  
National Academy Of Sciences ◽  
Project Data ◽  
Academy Of Sciences

This is a preprint of this manuscript, published at the Proceedings of the National Academy of Sciences of the United States of America (http://www.pnas.org/content/early/2018/08/22/1807222115), version dated July 30th, 2018 (date will be updated with preprint, old versions documented by OSF). Project data and analysis materials are available online: https://osf.io/z23kf/.

Anniversary Dinner 1976: speech by Dr Philip Handler, President of the U. S. National Academy of Sciences, The Dorchester, 30 November 1976

1977 ◽  
Vol 32 (1) ◽  
pp. 5-11
Keyword(s):  
United States Of America ◽  
Fourth Century ◽  
The United States ◽  
First Century ◽  
Third Century ◽  
National Academy Of Sciences ◽  
Natural Knowledge ◽  
American Colonies ◽  
Academy Of Sciences ◽  
Scientific Endeavour

It is an uncommon honor to be invited, by the President of The Royal Society of London for Improving Natural Knowledge to offer the annual toast. I am deeply appreciative of this high privilege. On the occasion of the tercentenary of this Society, my great and good predecessor, Detlev Bronk, dispatched to you the following greetings from the National Academy of Sciences of the United States of America: This 300th anniversary of your foundation is especially meaningful to us, for our Academy is descended from yours. Our objectives are rooted deeply in your traditions. During your first century you nurtured the beginning of scientific endeavour in the American colonies of your nation. Throughout your second hundredth year you gave encouragement to the scientists of our young nation. In your third century, which has been our first, your Fellows have generously offered encouraging friendship to our members. And as you begin your fourth century we send you our best wishes and pledge our will to engage with you in the mutual quest of natural knowledge.

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