Death in Downhill Skiing from 1976 Through 1992—A Retrospective View

2009 ◽  
pp. 66-66-7 ◽  
Author(s):  
JE Shealy ◽  
T Thomas
Keyword(s):  
Retrospective View ◽  
Downhill Skiing

Work-Based Learning: A Post- High School Retrospective View

2008 ◽  
Author(s):  
David L. Blustein ◽  
Maureen E. Kenny ◽  
Janine Bempechat ◽  
Joanne M. Ruane Seltzer ◽  
Christine Catraio ◽  
...  
Keyword(s):  
High School ◽  
Retrospective View

Pedagogical multilevel system and scheme for managing the quality of training results for athletes in the training of instructors-methodologists in alpine skiing in Russia

2020 ◽  
Author(s):  
Viktor Danilin ◽  
Yuri Baykovsky
Keyword(s):  
Teaching Methods ◽  
Alpine Skiing ◽  
Multilevel System ◽  
Ski Resorts ◽  
Lack Of Control ◽  
Downhill Skiing ◽  
Middle Mountains

Currently, there are about 200 ski resorts in Russia from Smolensk to Chukotka, which are located both in the low mountains (GC "Tyagacheva", "Sarochany", etc.), and in the middle mountains ("Abzakovo", "Bannoe Lake", etc. ) and highlands (regions of the Elbrus region, Dombay, Krasnaya Polyana, etc.). More than six million Russians go downhill skiing and snowboarding every year. Over the years, the quality of sports equipment and track equipment has changed significantly, which has led to an increase in speeds, an increase in injuries and a change in teaching methods. Currently, a large number of people die and are seriously injured at ski resorts every year due to the low quality of training in safe skiing, lack of control over the work of instructors, and the irresponsible attitude of the holders of ski resorts to the safety of providing services on the ski slopes.

Estimate of Hyperconjugation Strength in Alkylaromatics and Unsaturated Hydrocarbons Derived from Refractometric Data

2020 ◽  
Vol 23 (23) ◽  
pp. 2598-2613
Author(s):  
Boris A. Zaitsev
Keyword(s):  
Quantitative Estimation ◽  
Physical Phenomenon ◽  
Unsaturated Hydrocarbons ◽  
Resonance Effects ◽  
Alkyl Derivatives ◽  
Retrospective View ◽  
Scientific Papers ◽  
Polycyclic Aromatic ◽  
Qualitative Measure ◽  
Steric Inhibition Of Resonance

: A retrospective view of exaltation of refraction observed for many unsaturated and aromatic compounds demonstrates that this physical phenomenon is undeservedly considered only as a qualitative measure of conjugation. This mini-review discusses numerous papers by the author that have been published earlier in inaccessible periodicals and collections of scientific papers. Using a great number of illustrations, the author shows that this parameter can be successfully used for quantitative estimate of resonance effects in organic and polymer chemistry. The methods for derivation of strictly additive atomic and group refraction constants are described; these constants were subsequently used as a tool that allowed quantitative estimation of resonance effects in mono-, di-, tri- and polyalkylbenzenes, alkylnaphthalenes, some alkyl derivatives of unsaturated hydrocarbons. These effects cause strictly fixed increase in refraction of carbon atoms in different structural modifications (graphene, fullerene, diamond) and in polycyclic aromatic hydrocarbons. The relevant results regarding quantitative estimation of degree of steric inhibition of resonance in sterically hindered ortho-dialkylbenzenes, 1,2,3- trialkyl-, 1,2,3,4-tetraalkyl-, and 1,2,3,4,5-polyalkylbenzenes accumulated by the author are summarized.

Whither and Whence: A Retrospective View of Women in Public Service

Public Voices ◽  
2016 ◽  
Vol 13 (2) ◽  
pp. 137
Author(s):  
John R Phillips ◽  
Victoria Gordon
Keyword(s):  
Public Service ◽  
Retrospective View

Symposium Conclusion

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