Dynamical Equations For The Period Vectors In A Periodic System Under Constant External Stress

The purpose of this paper is to derive the dynamical equations for the period vectors of a periodic system under constant external stress. The explicit starting point is Newton’s second law applied to halves of the system. Later statistics over indistinguishable translated states and forces associated with transport of momentum are applied to the resulting dynamical equations. In the final expressions, the period vectors are driven by the imbalance between internal and external stresses. The internal stress is shown to have both full interaction and kinetic-energy terms.

Antitrust on the ‘G string’: What’s behind the Commission’s investigations of Google and Gazprom? CEPS Commentary, 15 June 2015

The past few weeks have marked a shift of gear in EU antitrust enforcement. First, the new European Commissioner for Competition Margarethe Vestager announced on April 15th that the Commission had sent a Statement of Objections to Google, arguing that the giant IT company abused its dominant position in the “general Internet search” market and also in the market for mobile operating systems, apps and services. Exactly one week later, she also sent a Statement of Objections to Gazprom for having created artificial barriers to trade between certain EU countries, preventing gas flows and competition across national borders and charging unfair prices in five Central and Eastern European countries. It is indeed hard to recall any other time in which two investigations of this size – both potentially leading to billions of euros of fines – have been launched almost simultaneously.

A bit of history, with some pictures.

Mode of access: Internet.

An evaluation of existing motor vehicle diagnostic inspection concepts. Volume III: characteristics of periodic vehicle inspection programs. (Results of Task 2). Final Task 2 report.

National Highway Traffic Safety Administration, Washington, D.C.

Basic principles of violin playing : a report prepared for the MENC Committee on String Instruction in the Schools

Mode of access: Internet.

Impact of discontinuing Idaho's periodic motor vehicle inspection program (a before and after outage rate study).

Mode of access: Internet.

The Star collection of instrumental music; arranged for wind and string instruments, and for the use of small bands and orchestras.

Contains arrangements of songs, selections from operas, dances, etc.

Streichquartett, op. 54 no. 1, G moll = [music] : String quartet, G minor /

Duration: ca.. 25 min.

Concerto grosso for string orchestra, no. 5, D major. [music] /

"Edition Eulenburg, no. 268".

Two sketches for string quartet based on Indian themes.

Mode of access: Internet.

Molly on the shore; Irish reel on 2 Cork reel tunes set for string four-some or string band.

For 2 violins, viola, violoncello.