Using Calculus to Plan an Open-Air Concert

A concert is a mass entertainment event held indoors, at concert halls, or outdoors (open-air festivals). These two formats differ greatly from each other. However, the goal of both events remains the same – to allow the audience to enjoy the musical performance. Indoor halls are designed for the best acoustics of sound. They are often circular and let sound waves travel around the inside of the building, like an echo bouncing back and forth. This makes the audience feel like they are surrounded by sound. Such places already have outlined spots for mounting music equipment with the highest efficiency. Thus, thanks to the fact that the building is engineered exactly for the purpose of conserving the sound, concert holders are not obligated with extra calculations and planning. On the other hand, open-air concerts can range from small, acoustic gatherings at municipal parks, to large music festivals that take place over several days and feature a large number of different artists. Such concerts take great amounts of planning to make sure that the stage is visible and, more importantly, audible from the entire seating area. In this paper, we investigate the physics of sound events of both formats and derive a basic formula for calculating the coverage of a sound system.

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Zur Rezeption der Oratorien Haydns in Paris zwischen 1800 und 1850: Institutionelle und ästhetische aspekte

Studia Musicologica ◽

10.1556/smus.51.2010.1-2.14 ◽

2010 ◽

Vol 51 (1-2) ◽

pp. 201-213

Author(s):

Martin Loeser

Keyword(s):

19Th Century ◽

Financial Risk ◽

The Other ◽

Music Festivals ◽

Other Hand ◽

German Speaking ◽

Choral Societies ◽

The One ◽

The 19Th Century ◽

Concert Life

In German speaking countries Haydn’s oratorios, and particularly TheCreation , have played an important role in the repertoire of choral societies and music festivals since the 1810s. However, in France, and also in Paris — “the capital of the 19th century” —, Haydn’s oratorios were performed only on rare occasions, and then they were given mostly in parts. The reasons for these circumstances can be seen in the institutional and esthetical context of the Parisian concert life. With respect to professional concert societies, like the Société des Concerts du Conservatoire , rigid obstacles were on the one hand the enormous financial risk of a complete oratorio performance. On the other hand the established type of concert programmes with its varied mixture of vocal and instrumental pieces functioned as a barrier. Most important was a lack of mixed amateur choral societies, which developed in Paris quite late, primary in the 1840s, and then only little by little. Since oratorio performances lasted to be mostly a private affaire in the first half of the 19th century, it is not surprising, that Haydn’s oratorios were studied in aristocratic salons of Princesse de Belgiojoso and Baron Delmar with the intention of both education and entertainment.

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Orxata Sound System. Música glocal, libre, colectiva y cooperativa / Orxata Sound System. Glocal, free, collective and cooperative music

Kamchatka Revista de análisis cultural ◽

10.7203/kam.9.10140 ◽

2017 ◽

pp. 373

Author(s):

Carla González Collantes ◽

Maria Lacueva i Lorenz

Keyword(s):

Cultural Studies ◽

New Technologies ◽

The Other ◽

Sound System ◽

The Public ◽

Cooperative Strategies ◽

Other Hand ◽

Before And After ◽

Nuevas Tecnologías ◽

The One

Resumen: Orxata Sound System es un colectivo musical de la comarca de l’Horta (País Valenciano) que se fundó el año 2003 y que se disolvió indefinidamente el año 2014. Su existencia ha dejado huella en la escena musical del ámbito catalanófono, no solamente por su estilo, sino también porque fueron pioneros en el uso de las nuevas tecnologías tanto para crear, producir y difundir su música como para (auto)gestionarse y comunicarse con el público de manera eminentemente horizontal. Este artículo observará la trayectoria musical de Orxata Sound System haciendo especial hincapié, por un lado, en la explotación artística que desarrollaron a partir de la hibridación de dos elementos aparentemente contradictorios: por otro lado, nos centraremos en las estrategias cooperativas en la creación musical.Palabras clave: cultura colectiva, activismo, música catalana, Estudios Culturales, València. Abstract: Orxata Sound System is a musical collective from l’Horta (Valencian Country) that was founded in 2003 and was dissolved indefinitely in 2014. Its existence has marked a before and after in the Catalan musical scene, not only because of its style, but also because it was a pioneer in the use of new technologies to create, produce and distribute its music as well as (auto) manage and communicate with the public in an eminently horizontal way. This article will observe the musical trajectory of Orxata Sound System with special emphasis, on the one hand, on the artistic exploitation that developed from the hybridization of two apparently contradictory elements; on the other hand, we will focus on the cooperative strategies in musical creativity. Keywords: collective culture, activism, catalan music, Cultural Studies, Valencia

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A study of cometary eruptions through OH radio-lines

International Astronomical Union Colloquium ◽

10.1017/s025292110003150x ◽

1999 ◽

Vol 173 ◽

pp. 249-254

Author(s):

A.M. Silva ◽

R.D. Miró

Keyword(s):

Short Duration ◽

Growth Curves ◽

The Other ◽

Initial Mass ◽

Radio Lines ◽

Other Hand ◽

Sudden Rise

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.

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Closing the GAP—A 5Å Scanning Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100061938 ◽

1969 ◽

Vol 27 ◽

pp. 6-7

Author(s):

A. V. Crewe

Keyword(s):

Normal Form ◽

The Other ◽

Resolving Power ◽

Scanning Microscope ◽

Conventional Microscope ◽

Other Hand ◽

Closing The Gap ◽

Thermal Sources ◽

Better Than ◽

Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

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Life Beyond 1MeV

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600000118 ◽

1980 ◽

Vol 38 ◽

pp. 30-33

Author(s):

K.H. Westmacott

Keyword(s):

Electron Microscopy ◽

Past Experience ◽

The Other ◽

Good Case ◽

Other Hand ◽

The U.S

Life beyond 1MeV – like life after 40 – is not too different unless one takes advantage of past experience and is receptive to new opportunities. At first glance, the returns on performing electron microscopy at voltages greater than 1MeV diminish rather rapidly as the curves which describe the well-known advantages of HVEM often tend towards saturation. However, in a country with a significant HVEM capability, a good case can be made for investing in instruments with a range of maximum accelerating voltages. In this regard, the 1.5MeV KRATOS HVEM being installed in Berkeley will complement the other 650KeV, 1MeV, and 1.2MeV instruments currently operating in the U.S. One other consideration suggests that 1.5MeV is an optimum voltage machine – Its additional advantages may be purchased for not much more than a 1MeV instrument. On the other hand, the 3MeV HVEM's which seem to be operated at 2MeV maximum, are much more expensive.

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Can the Academic Self-Concept be Positive and Realistic?

Zeitschrift für Pädagogische Psychologie ◽

10.1024/1010-0652.19.3.132 ◽

2005 ◽

Vol 19 (3) ◽

pp. 129-132 ◽

Cited By ~ 6

Author(s):

Reimer Kornmann

Keyword(s):

Academic Performance ◽

Opposite Effect ◽

Self Esteem ◽

Point Of View ◽

The Other ◽

Self Concept ◽

High Ability ◽

Self Image ◽

Other Hand

Summary: My comment is basically restricted to the situation in which less-able students find themselves and refers only to literature in German. From this point of view I am basically able to confirm Marsh's results. It must, however, be said that with less-able pupils the opposite effect can be found: Levels of self-esteem in these pupils are raised, at least temporarily, by separate instruction, academic performance however drops; combined instruction, on the other hand, leads to improved academic performance, while levels of self-esteem drop. Apparently, the positive self-image of less-able pupils who receive separate instruction does not bring about the potential enhancement of academic performance one might expect from high-ability pupils receiving separate instruction. To resolve the dilemma, it is proposed that individual progress in learning be accentuated, and that comparisons with others be dispensed with. This fosters a self-image that can in equal measure be realistic and optimistic.

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Stories and the Self

Journal of Media Psychology Theories Methods and Applications ◽

10.1027/1864-1105/a000255 ◽

2020 ◽

Vol 32 (2) ◽

pp. 47-58 ◽

Cited By ~ 1

Author(s):

Stefan Krause ◽

Markus Appel

Keyword(s):

Meta Analysis ◽

The Self ◽

The Other ◽

Lower Degree ◽

Contrast Effects ◽

Self Perception ◽

Self Perceptions ◽

Other Hand ◽

The One ◽

Implicit And Explicit

Abstract. Two experiments examined the influence of stories on recipients’ self-perceptions. Extending prior theory and research, our focus was on assimilation effects (i.e., changes in self-perception in line with a protagonist’s traits) as well as on contrast effects (i.e., changes in self-perception in contrast to a protagonist’s traits). In Experiment 1 ( N = 113), implicit and explicit conscientiousness were assessed after participants read a story about either a diligent or a negligent student. Moderation analyses showed that highly transported participants and participants with lower counterarguing scores assimilate the depicted traits of a story protagonist, as indicated by explicit, self-reported conscientiousness ratings. Participants, who were more critical toward a story (i.e., higher counterarguing) and with a lower degree of transportation, showed contrast effects. In Experiment 2 ( N = 103), we manipulated transportation and counterarguing, but we could not identify an effect on participants’ self-ascribed level of conscientiousness. A mini meta-analysis across both experiments revealed significant positive overall associations between transportation and counterarguing on the one hand and story-consistent self-reported conscientiousness on the other hand.

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Don’t Put Me in This Group

Social Psychology ◽

10.1027/1864-9335/a000363 ◽

2019 ◽

Vol 50 (2) ◽

pp. 80-93

Author(s):

Jort de Vreeze ◽

Christina Matschke

Keyword(s):

Positive Emotions ◽

Negative Emotions ◽

Negative Information ◽

The Self ◽

The Other ◽

Other Hand ◽

Group Memberships

Abstract. Not all group memberships are self-chosen. The current research examines whether assignments to non-preferred groups influence our relationship with the group and our preference for information about the ingroup. It was expected and found that, when people are assigned to non-preferred groups, they perceive the group as different to the self, experience negative emotions about the assignment and in turn disidentify with the group. On the other hand, when people are assigned to preferred groups, they perceive the group as similar to the self, experience positive emotions about the assignment and in turn identify with the group. Finally, disidentification increases a preference for negative information about the ingroup.

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