scholarly journals Schubert’s Development of Harmonic Motives in his Early String Quartets

2018 ◽  
Vol 24 (3) ◽  
Author(s):  
Brian C. Black
Keyword(s):  
String Quartets ◽  
Dynamic Force ◽  
Sonata Form ◽  
Structural Problems ◽  
Insight Into

This essay looks at Schubert’s handling of harmonic motives in the first movements of four of his early string quartets dating from the period of approximately 1811 until late 1814, when he was fourteen to seventeen years old. Despite their many structural problems, these pieces provide an insight into Schubert’s development as a composer of sonata form. Even in the earliest of the examples studied, the young composer attempts to draw affective and structural consequences across the form from the first harmonic event of the music, which thus functions motivically in the unfolding of the movement. As his approach becomes increasingly flexible over the period under discussion, such harmonic motives become a dynamic force in the form, influencing tonal relations and modulatory strategies as well as looking forward to certain aspects of his mature three-key expositions.

Ernest Bloch's Second String Quartet

Tempo ◽  
1959 ◽  
pp. 11-16
Author(s):  
Frederick Rimmer
Keyword(s):  
String Quartet ◽  
String Quartets ◽  
The Other ◽  
Sonata Form ◽  
Musical Expression ◽  
The Right

The four string quartets* of Bloch are a convenient medium for assessing both the strength and weakness of his unusual talent, revealing, as they do, an imperfect endowment of those processes of thought and feeling from which, in the right amalgam, a masterpiece of musical expression can emerge. Only the second quartet represents him at his best. It is one of the few works where inspiration and emotion are under the control of the intellect. There are weaknesses in the other quartets largely brought about by preoccupation with cyclic procedures—a notorious and dangerous expedient for a composer unable by nature to accept the traditional usages and disciplines of sonata form.

scholarly journals Learning Sonata Form Structure on Mozart’s String Quartets

2019 ◽  
Vol 2 (1) ◽  
pp. 82-96
Author(s):  
Pierre Allegraud ◽  
Louis Bigo ◽  
Laurent Feisthauer ◽  
Mathieu Giraud ◽  
Richard Groult ◽  
...  
Keyword(s):  
String Quartets ◽  
Sonata Form

Dynamic Analysis of Mechanical Systems With Clearances—Part 1: Formation of Dynamic Model

1971 ◽  
Vol 93 (1) ◽  
pp. 305-309 ◽  
Author(s):  
S. Dubowsky ◽  
F. Freudenstein
Keyword(s):  
Equations Of Motion ◽  
Operating Conditions ◽  
Coupled Systems ◽  
Dynamical Response ◽  
Dynamic Force ◽  
Dynamical Equations ◽  
Mechanical Joint ◽  
The Impact ◽  
Insight Into

A mathematical model of an elastic mechanical joint with clearances has been formulated and the dynamical equations of motion derived (Part I). The model, which we have called an Impact Pair, is basic to the determination of the dynamical response of mechanical and electromechanical systems with clearances, including determination of dynamic force amplification, frequency response, time-displacement characteristics, and other dynamic characteristics. Whenever possible, the results for the impact pair under various operating conditions are illustrated by graphs, which may also offer some insight into the behavior of clearance-coupled systems.

Tour guides’ perceptions of below-cost tours and managerial implications

2019 ◽  
Vol 26 (2) ◽  
pp. 182-194 ◽  
Author(s):  
Suosheng Wang
Keyword(s):  
Agency Theory ◽  
Structured Interviews ◽  
Tour Guide ◽  
Tour Guides ◽  
Structural Problems ◽  
Personal Perceptions ◽  
Managerial Implications ◽  
And Behaviors ◽  
Travel Industry ◽  
Insight Into

Below-cost tours (BCTs) have long been considered a serious issue in the travel industry, yet they have rarely been discussed from a tour guides’ perspective. Today’s tour guides are mostly freelancers, hired by tour operators to lead tour groups. While previous studies cover the management and behaviors of tour guides, there is little insight into personal perceptions of their work. To better understand BCTs, this study provides an intimate look at the phenomenon through the use of semi-structured interviews from tour guides and employment of nonparticipant observation on their experiences. The structural problems of the travel industry and impacts of BCTs on tour guide performance are explored and highlighted. Framed in the agency theory, the managerial implications and solutions to the BCT problems are discussed and recommended.

scholarly journals Mechanistic Insight into Biopolymer Induced Iron Oxide Mineralization Through Quantification of Molecular Bonding

2019 ◽  
Author(s):  
K.K. Sand ◽  
Stanislav Jelavic ◽  
Sören Dobberschütz ◽  
P.D. Ashby ◽  
Matthew J. Marshall ◽  
...  
Keyword(s):  
Density Functional ◽  
Growth Dynamics ◽  
Complex Model ◽  
Nucleation Theory ◽  
Dynamic Force ◽  
Functional Theory ◽  
Thermogravimetric Data ◽  
Water Association ◽  
Molecular Bonding ◽  
Insight Into

Microbial production of iron (oxy)hydroxides on polysaccharide rich biopolymers occurs on such a vast scale that it impacts the global iron cycle and has been responsible for major biogeochemical events. Yet the physiochemical controls these biopolymers exert on iron (oxy)hydroxide formation are poorly understood. Here we used dynamic force spectroscopy to directly probe binding between complex, model and natural microbial polysaccharides and common iron (oxy)hydroxides. Applying nucleation theory to our results demonstrates that if there is a strong attractive interaction between biopolymers and iron (oxy)hydroxides, the biopolymers decrease the nucleation barriers, thus promoting mineral nucleation. These results are also supported by nucleation studies and density functional theory. Spectroscopic and thermogravimetric data provide insight into the subsequent growth dynamics and show that the degree and strength of water association with the polymers can explain the influence on iron (oxy)hydroxide transformation rates. <br>

scholarly journals Mechanistic Insight into Biopolymer Induced Iron Oxide Mineralization Through Quantification of Molecular Bonding

2019 ◽  
Author(s):  
K.K. Sand ◽  
Stanislav Jelavic ◽  
Sören Dobberschütz ◽  
P.D. Ashby ◽  
Matthew J. Marshall ◽  
...  
Keyword(s):  
Density Functional ◽  
Growth Dynamics ◽  
Complex Model ◽  
Nucleation Theory ◽  
Dynamic Force ◽  
Functional Theory ◽  
Thermogravimetric Data ◽  
Water Association ◽  
Molecular Bonding ◽  
Insight Into

Microbial production of iron (oxy)hydroxides on polysaccharide rich biopolymers occurs on such a vast scale that it impacts the global iron cycle and has been responsible for major biogeochemical events. Yet the physiochemical controls these biopolymers exert on iron (oxy)hydroxide formation are poorly understood. Here we used dynamic force spectroscopy to directly probe binding between complex, model and natural microbial polysaccharides and common iron (oxy)hydroxides. Applying nucleation theory to our results demonstrates that if there is a strong attractive interaction between biopolymers and iron (oxy)hydroxides, the biopolymers decrease the nucleation barriers, thus promoting mineral nucleation. These results are also supported by nucleation studies and density functional theory. Spectroscopic and thermogravimetric data provide insight into the subsequent growth dynamics and show that the degree and strength of water association with the polymers can explain the influence on iron (oxy)hydroxide transformation rates. <br>

The Reinstatement of Polyphony in Musical Construction: Fugal Finales in Haydn's Op. 20 String Quartets

2010 ◽  
Vol 27 (1) ◽  
pp. 55-83 ◽  
Author(s):  
James Grier
Keyword(s):  
String Quartet ◽  
String Quartets ◽  
Western Civilization ◽  
Sonata Form ◽  
Advanced Study

The title, borrowed from Paul Henry Lang's description of Haydn's op. 20 string quartets in Music in Western Civilization, characterizes Haydn's endeavor to create more independent partwriting in the string quartet. First, Haydn's fugal practice is noteworthy particularly for the construction of the fugal exposition and his treatment of multiple subjects, the question of what constitutes a regular countersubject, and the treatment of redundant entries. Second, the chief strategy in these movements is the invention of invertible counterpoint in three voices. Haydn writes a double fugue (with a regular countersubject), as well as a triple and quadruple fugue, in which the principal issue is the ability of each subject (including the double fugue's countersubject) to serve as any voice——top, middle or bottom——in a texture of invertible counterpoint. The expertise he attained with these works then allows him to exploit the technique in later quartets, principally in the development sections of sonata-form movements. There, he uses invertible counterpoint to establish the independence of each voice, and to create longer passages unarticulated by cadences, sections distinct from the more clearly articulated periodic expositions and recapitulations. The three fugal finales of op. 20, therefore, constitute Haydn's advanced study not so much in fugal procedure as in the practice of invertible counterpoint.

scholarly journals Framework for Deriving Real Exchange Rates

1994 ◽  
Vol 33 (4II) ◽  
pp. 1099-1112
Author(s):  
Usman A. Afridi ◽  
Rehana Siddiqui
Keyword(s):  
Developing Countries ◽  
Exchange Rates ◽  
Purchasing Power Parity ◽  
Real Exchange Rates ◽  
Purchasing Power ◽  
Equilibrium Path ◽  
Power Parity ◽  
Structural Problems ◽  
Insight Into

In the last conference we presented a study on Purchasing Power Parity (PPP) and Real Exchange Rates (RER). One of the conclusions we reached was that a PPP-based measure of the RER did not give sufficient insight into the structural problems underlying disequilibrium situation for Real Exchange Rates. We present a review of recent studies which model the path of Real Exchange Rates determined by sets of determinants. These determinants are usually difficult to quantify and are often represented by proxies. We have reservations about both the choice of some determinants and also appropriativeness of the proxies used to represent them. The purpose of this paper is to critically evaluate frameworks for determining real exchange rates in developing countries. We would suggest a basis for estimation of RER and its equilibrium path.

scholarly journals TREATMENT OF RECAPITULATION OF THE FIRST MOVEMENTS IN THE SONATA FORM OF BEETHOVEN’S STRING QUARTETS OP. 18

2021 ◽  
pp. 105
Author(s):  
Danijela Zdravić-Mihailović
Keyword(s):  
String Quartet ◽  
Wolfgang Amadeus Mozart ◽  
String Quartets ◽  
Joseph Haydn ◽  
Sonata Form ◽  
New Treatment ◽  
Analysis Point

The paper focuses on the function of recapitulation in the sonata form relying on the example of the first movements of Beethoven's string quartets Op. 18 No. 1–6. With regard to the fact that recapitulation is commonly described as a restatement of the exposition with tonal alterations of the second theme and the closing section, analytical deliberations most often do not go beyond recording such alterations. However, some analysis point to the new role of the recapitulation exactly on account of the essence of the undertaken alterations, i.e. on account of the idea that the composer wants to accomplish at the level of sonata form through recapitulation. The research is conceived as a continuation of the previous studies (Zdravić Mihailović 2006, 2007a, 2007b, 2015a, 2015b). These studies focused on the genre of string quartet of Franz Joseph Haydn and Wolfgang Amadeus Mozart, where recapitulation was proven to be a remarkable phenomenon as its role was not merely to restate the exposition’s content with the usual tonal alterations. On the contrary, it can be a place of a new treatment of the sections of the exposition, and gives it some completely specific features.

scholarly journals Thermodynamic and Kinetic Parameters for Calcite Nucleation on Peptoid and Model Scaffolds - a Step Toward Nacre Mimicry.

2019 ◽  
Author(s):  
Anne Rath Nielsen ◽  
Stanislav Jelavic ◽  
Daniel Murray ◽  
Behzad Rad ◽  
Martin Andersson ◽  
...  
Keyword(s):  
Free Energy ◽  
Calcium Carbonate ◽  
Kinetic Parameters ◽  
Functional Groups ◽  
Driving Forces ◽  
Interfacial Free Energy ◽  
Nucleation Theory ◽  
Dynamic Force ◽  
Thermodynamic And Kinetic Parameters ◽  
Insight Into

To establish an approach for a bulk upscaling of a composit material consisting of calcium carbonate and tunable peptoids we here combined three distinct approaches to thoroughly access the underlying kinetic and thermodynamic driving forces for CaCO3 formation on peptoid polymers. We derived the net interfacial free energy for calcite formation on the nanosheets and self-assemblage monolayers of the sheets constituent functional groups (carboxyl, amine and a 1:1 mix) using: nucleation experiments, dynamic force spectroscopy and theoretical modeling (COSMO-RS). We applied nucleation theory to the results and obtain insight into conditions were we can obtain favorable nucleation conditions on the polymers in a highly controlled manner.

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