Detta projekt har handlat om att komponera musik med hjälp av loop-pedal. Musiken som komponerades skulle också kunna framföras på loop-pedal. Målet var att skriva två låtar för loop-pedal och att bli mer förtrogen med att komponera och framföra live-loopingmusik. Vidare ställdes frågan hur låtskrivning för loop-pedal skiljer sig från tidigare erfarenheter av låtskrivning. För att uppnå ett resultat hölls fyra låtskrivarsessioner som dokumenterades genom dagboksanteckningar och videoinspelningar. I anteckningarna dokumenterades datum och tid, vad som gjorts under arbetstillfället och även min motivation och känslostatus. Den nedtecknade dokumentationen tillsammans med videoinspelningar analyserades för att svara på syftesfrågor och få fram ett resultat. Arbetet har resulterat i en färdig låt som fick namnet ”No Friend of Mine”. Två skillnader mellan låtskrivning för loop-pedal och mina tidigare erfarenheter presenteras också i resultatet. Det ena var att arbetet med låtens form förändras då de individuella looparnas start- och stoppunkter måste tas i beaktande. Det andra var den harmoniska begränsning det innebär att jobba med loopar. Då en loop innebär att ljudet, eller ackorden i det här fallet upprepas, blir det svårare som låtskrivare att lägga in tonartsförändringar eller enstaka ackordförändringar.

El caracol de agua dulce Pomacea canaliculata es un habitante natural de los cuerpos de agua del sudoeste bonaerense que ha sido ampliamente estudiado en diversos aspectos de su biología. A partir de su invasión en diferentes partes del mundo, su ecología trófica ha sido el tema principal de estudio, ya que el intenso consumo de macrófitas ha hecho que se convierta en una importante plaga de cultivos acuáticos, causando importantes pérdidas económicas. El estudio de los mecanismos de obtención de alimento y el consumo de recursos diferentes a las macrófitas son temas poco desarrollados hasta el momento. El mecanismo de la colecta pedal superficial, caracterizado por la formación de embudos con el pie, les permite a estos caracoles acceder a recursos muy variados que pueden encontrarse disponibles en la superficie del agua. Este adaptable mecanismo es llevado a cabo desde neonatos hasta adultos, disminuyendo la eficiencia de captura a medida que se incrementa el tamaño del caracol. Además, dicha eficiencia aumenta con disponibilidades crecientes de alimento pero no se ve afectada por el tamaño de las partículas de alimento. Los diversos materiales que pueden ser capturados para su consumo van desde pequeñas plantas flotantes hasta insectos, polen y biofilms. En relación al ritmo de este comportamiento trófico, la formación de embudos es más frecuente durante horas de oscuridad, inclusive en ambientes naturales, donde se registró esta actividad de manera intensa, lo que indica que ocurre bastante frecuentemente. La formación de embudos ocurre a bajas velocidades de corriente y su eficiencia aumenta con la temperatura. Por medio de la colecta pedal superficial P. canaliculata puede aprovechar un amplio espectro de recursos tróficos, algunos de los cuales les permite crecer. A pesar de que las tasas de crecimiento cuando el alimento ofrecido es exclusivamente neuston son menores que las obtenidas cuando son alimentados con macrófitas, el aporte al crecimiento puede ser lo suficientemente alto como para reemplazar a las macrófitas. Por otro lado, la aceptación y el consumo, por parte de caracoles de tallas muy variadas, de recursos tróficos diferentes a las macrófitas pueden representar una alternativa que les permite crecer en ausencia de ellas. Un ejemplo de esto es la carroña (restos de origen animal) que si bien como complemento a altas disponibilidades de macrófitas no produce un efecto positivo relevante en el mediano plazo, como único recurso disponible les permite crecer más que si no tuvieran alimento. Por otro lado, sus propios huevos, cuando son accidentalmente sumergidos, también son intensamente consumidos en ambientes naturales y su consumo permite lograr un mayor crecimiento ante la ausencia de otros recursos. La detección de la carroña parece necesitar de un contacto directo con ella, sin que medie un mecanismo de quimiorrecepción a distancia como en el caso de los huevos sumergidos. Pomacea canaliculata, debido a su intenso consumo de macrófitas, es capaz de generar importantes cambios estructurales en la vegetación de los cuerpos de agua que habita, erradicándola totalmente o favoreciendo la dominancia de especies no palatables. Dichos cambios han constituido probablemente una presión selectiva para ampliar y diversificar su dieta y mecanismos de alimentación y así poder persistir y establecer poblaciones en sitios carentes de macrófitas o de macrófitas palatables, lo que parece haber favorecido el desarrollo de su gran su capacidad invasiva. / The freshwater snail Pomacea canaliculata is a common inhabitant of natural waterbodies in Southwestern Buenos Aires Province which has been the subject of numerous biological studies. After its establishment as an invader in many areas around the world, the interest on its trophic ecology increased notably, since its voracious consumption of aquatic macrophytes transformed it in a pest of aquatic crops responsible for important economic losses. However, the use of other mechanisms of food capture and trophic resources other than macrophytes has not been studied systematically heretofore. Pedal surface collecting is a mechanism of food capture that, through the formation of a ciliated funnel with the forefoot, allows these snails to take advantage of a wide spectrum of trophic resources associated to the water surface. Snails of all sizes, from hatchlings to adults, are able to perform pedal surface collecting although the specific capture rate decreases with size; the specific capture rate increases with the availability of food particles in the water surface but it is not affected by particle size. The materials that can be captured by pedal surface collecting range from duckweed and water ferns to insects, pollen and biofilms. Pedal surface collecting is very frequent in natural waterbodies, it occurs mostly during night and can reach high levels. Snails perform pedal surface collecting only in slow flowing water and its efficiency increases with temperature. Pomacea canaliculata is able to capture diverse materials by pedal surface collecting and is able to grow with some of them as the only resource. Even though the growth rates when feeding on neuston by pedal surface collecting are lolwer than those obtained by feeding on macrophytes, the growth rates with neuston are high enough to supplant macrophyte consume. The use of alternative trophic resources by snails of all sizes probably allows them to grow even if macrophytes, their preferred food, are absent. For instance, even though carrion has no significant effect on growth in the midterm when macrophyte availability is high, it allows snails to growth significantly more than starving snails. On the other hand, P. canaliculata readily attacks and consumes its own eggs when it finds them accidentally submersed, and is able to grow using them as the only trophic resource. Distance chemoreception seems to play a role in the detection of submersed egg masses but not of carrion. Due to their voracious consume of macrophytes P. canaliculata snails are able to provoke important structural changes in the vegetation of the waterbodies they inhabit, either by eradicating it or by favoring the dominance of unpalatable species. These changes have probably represented a selective pressure for the diversification of their diet and trophic mechanisms, allowing them to persist in waterbodies without palatable macrophytes and enhancing their invasive capabilities.

GeoGebra is a free, open-source, and multi-platform software that combines dynamic geometry, algebra and calculus in one easy-to-use package. Students from middle-school to university can use it in classrooms and at home. In this workshop, we will introduce the features of GeoGebra with a special focus on not very common applications of a dynamic geometry program. We will inform about plans for developing training and research networks connected to GeoGebra. We can expect that at the time of the conference a spreadsheet will be integrated into GeoGebra which offers new ways teaching mathematics using the interplay between the features of a spreadsheet and the objects of dynamic geometry.

Orientador: Prof. Dr. Márcio Fabiano da Silva / Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Mestrado Profissional em Matemática em Rede Nacional, 2015. / Este trabalho apresenta um estudo em Geometria Euclidiana Plana do triângulo pedal, abordando o aspecto matemático e possibilidades de inserir este conteúdo na Educação Básica. É abordado o aspecto matemático, apresentando definições e teoremas com suas demonstrações, relacionadas ao estudo de triângulo pedal, assim como a sua própria definição. Essa apresentação é ilustrada com exemplos feitos no software Geogebra, que podem contribuir para compreender as definições e demonstrações. Com o desenvolvimento do estudo percebeu-se perceber que o fato de construir de diferentes modos o triângulo pedal este objeto torna-se uma ferramenta que possibilita ser utilizado para resolver diferentes problemas de geometria. Outro aspecto que foi possivel notar é a possibilidade de propor atividades relacionadas ao estudo do triângulo pedal para estudantes da educação básica. Sendo assim, ao final de trabalho apresentamos diferentes sugestões de atividades, que além de contribuirem para a construção do conhecimento de geometria, possibilita a exploração do software Geogebra e o desenvolvimento de habilidades tais como conjecturar, formular hipóteses, reconhecer regularidades, que são habilidades essenciais na atividade de aprender Matemática. / This paper presents a study of the pedal triangle discussing the mathematical aspect and possibilities to insert this content in Basic Education. It discussed the mathematical aspect, presenting definitions and theorems with their statements related to the pedal triangle of study, as well as their own definition. This presentation is illustrated with examples made in Geogebra software, which can help to understand the definitions and statements. With the development of the study was realized that the fact of building in different ways the pedal triangle this object becomes a tool that enables to be used to solve different geometry problems. Another aspect that was possible to note is the possibility to propose activities related to the study of the pedal triangle for students of basic education. Thus, at the end of work we present different suggestions for activities, which in addition to contributing to the construction of knowledge of geometry, allows the exploration of the Geogebra software and the development of skills such as conjecture, hypotheses, recognize regularities, which are essential skills in the activity of learning mathematics.

Design of braking system for the formula student car. Calculation of basic forces acting in the braking system. Mechanical analysis of the most important parts of the braking system. Manufacturing of brake pedal. Assembly brake components to brake system.

The aim of my diploma thesis is the formula car pedal assembly design. The introduction of the thesis presents the possible design variants of the car pedal assembly of the current vehicles completed with requirement that are demanded from them. Furthermore, there are mentioned and described individual elements of the car pedal assembly including their principle and function. The thesis mentions collected basic information about the design of the components. On the basis of this mentioned information the thesis aims for the design including the choice of appropriate and relevant components. The final design of pedals and the basic console results from the mentioned calculation of stress analysis. In conclusion of the thesis there are evaluated achieved results that are compared with the current pedal assembly and there are presented the possible ways of designs with the respect to their production.

GeoGebra is a free, open-source, and multi-platform software that combines dynamic geometry, algebra and calculus in one easy-to-use package. Students from middle-school to university can use it in classrooms and at home. In this workshop, we will introduce the features of GeoGebra with a special focus on not very common applications of a dynamic geometry program. We will inform about plans for developing training and research networks connected to GeoGebra. We can expect that at the time of the conference a spreadsheet will be integrated into GeoGebra which offers new ways teaching mathematics using the interplay between the features of a spreadsheet and the objects of dynamic geometry.

<p>This dissertation consists of two independent musical compositions and an article detailing the process of the design and assembly of an electric guitar with particular emphasis on the carefully curated suite of embedded effects. </p><p>The first piece, 'Phase Locked Loop and Modulo Games' is scored for electric guitar and a single echo of equal volume less than a beat away. One could think of the piece as a 15 minute canon at the unison at the dotted eighth note (or at times the quarter or triplet-quarter), however the compositional motivation is more about weaving a composite texture between the guitar and its echo that is, while in theory extremely contrapuntal, in actuality is simply a single [superhuman] melodic line.</p><p>The second piece, 'The Dogma Loops' picks up a few compositional threads left by ‘Phase Locked Loop’ and weaves them into an entirely new tapestry. 'Phase Locked Loop' is motivated by the creation of a complex musical composite that is for the most part electronically transparent. 'The Dogma Loops' questions that same notion of composite electronic complexity by essentially asking a question: "what are the inputs to an interactive electronic system that create the most complex outputs via the simplest musical means possible?"</p><p>'The Dogma Loops' is scored for Electric Guitar (doubling on Ukulele), Violin and Violoncello. All of the principal instruments require an electronic pickup (except the Uke). The work is in three sections played attacca; [Automation Games], [Point of Origin] and [Cloning Vectors]. </p><p>The third and final component of the document is the article 'Finding Ibrida.' This article details the process of the design and assembly of an electric guitar with integrated effects, while also providing the deeper context (conceptual and technical) which motivated the efforts and informed the challenges to hybridize the various technologies (tubes, transistors, digital effects and a microcontroller subsystem). The project was motivated by a desire for rigorous technical and hands-on engagement with analog signal processing as applied to the electric guitar. ‘Finding Ibrida’ explores sound, some myths and lore of guitar tech and the history of electric guitar distortion and its culture of sonic exploration.</p> / Dissertation

Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Includes bibliographical references. / by Joshua Lindsay. / B.S.

Thesis. 1977. B.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Bibliography: leaf 40. / B.S.