Heavy quarkonium: progress, puzzles, and opportunities

A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the $B$-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations. The plethora of newly-found quarkonium-like states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of c\bar{c}, b\bar{b}, and b\bar{c} bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hot- and cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.Comment: 182 pages, 112 figures. Editors: N. Brambilla, S. Eidelman, B. K. Heltsley, R. Vogt. Section Coordinators: G. T. Bodwin, E. Eichten, A. D. Frawley, A. B. Meyer, R. E. Mitchell, V. Papadimitriou, P. Petreczky, A. A. Petrov, P. Robbe, A. Vair

Interpreting for forced migrants in health care: Interpreters’ training through patients` perceptions in Russia

The paper provides preliminary study in the field of provision of interpreting services in various health care settings including medical institutions and border-cross points for people with limited official language proficiency in Russia through the prism of linguacultural mediation. Special emphasis is laid on possible barriers in interpreter-mediated communication in health care domain. The research aims to explore target audiences’ perceptions regarding the extent to which the interpreters’ instruction curriculum meets professional challenges that interpreters might face while working for migrants and refugees in healthcare settings. The research methodology applies qualitative and quantitative methods as well as cluster and factor analysis. The research also features an empirical experiment involving interviews with foreign patients of a Russian hospital, forced migrants living in Russia under status of temporary asylum, and graduate students doing their master degree program “Interpreter and Translator for Public Services and Institutions” in Russia. The research findings obtained through surveys of target audiences suggest that linguistic and interpreting competences alone are not sufficient enough to ensure effective interpreter assisted communication in health care setting. Besides knowledge of field related terminology, a health care interpreter has to act as lingua cultural mediator, bridging the cultural gaps between the communicants both in medical institutions and border-crossing points. The present article has both theoretical and practical value as its findings can be used in determining the content and structure of master degree courses on interpreting and translation in health care settings. © 2018, Association for Social Studies Educa. All rights reserved

Adsorption Properties and Structure of Some Active Carbons

Gas chromatography has been used to determine the initial low-coverage heats of adsorption of C2–C6 hydrocarbons and their derivatives on active carbon and graphitized carbon black. The porous structure of the active carbon has been determined from the adsorption isotherms of benzene measured at 25°C by a vacuum static method. The isotherms have been analyzed with the help of the BET and Dubinin–Radushkevich theories

Russian experts’ recommendations on the practical use of the filler VYC-25L

Aesthetic treatments of the chin and jawline are becoming increasingly popular nowadays since special attention has been paid to the harmony of the lower face. One of the most used fillers in this facial area is VYC-25L. This filler has an extensive evidence base obtained during the non-clinical and clinical trials. After that many clinics around the world, including Russian ones, have started successful use of this product. However, despite the scientific evidence, aesthetic practitioners should be guided by approaches for the treatments with VYC-25L in different categories of patients. The presented article describes in detail the practical recommendations for aesthetic treatments with VYC-25L, considering the accumulated data of clinical trials and practical experience. These recommendations will be useful for cosmetologists and plastic surgeons for more effective and safe aesthetic treatments. © 2021, Media Sphera Publishing Group. All rights reserved