Vassar College Digital Library

Vassar Scholarship

Vassar Scholarship, the institutional repository formerly known as Digital Window, reflects the research and scholarly output of the Vassar College community.  It provides access to a variety of collections, including senior theses and projects across a wide range of disciplines.

Automatic control: the vertebral column of dogfish sharks behaves as a continuously variable transmission with smoothly shifting functions

Publication Date
2016-July-07
Document Type
Document Type
Abstract

During swimming in dogfish sharks, Squalus acanthias, both the intervertebral joints and the vertebral centra undergo significant strain. To investigate this system, unique among vertebrates, we cyclically bent isolated segments of 10 vertebrae and nine joints….

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Built for speed: strain in the cartilaginous vertebral columns of sharks

Publication Date
2014-February-01
Document Type
Document Type
Abstract

In most bony fishes vertebral column strain during locomotion is almost exclusively in the intervertebral joints, and when these joints move there is the potential to store and release strain energy. Since cartilaginous fishes have poorly mineralized vertebral centra, we...

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Distribution, inflation, and public industrial enterprises

Publication Date
1991-September-01
Document Type
Department or Program
Document Type
Abstract

A Kaleckian model, featuring the complementarity of the public and private sectors and administered pricing of public-sector products, is developed to examine the impact of public enterprises on income distribution between the state, capital, and labor. Public-sector mark-up and relative...

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Inflation, growth, and import bottlenecks in the Turkish manufacturing sector

Publication Date
1989-November-01
Document Type
Department or Program
Document Type
Abstract

This paper argues that, in economies heavily dependent on imported inputs, the responsiveness of price and output to cost and demand factors are altered by foreign exchange bottlenecks if the government resorts to nonmarket allocation of import licenses. A model...

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Quesnay's Tableau Economique: An expository note

Publication Date
1991-September-01
Document Type
Department or Program
Document Type
Abstract

Francois Quesney's Tableau is reformulated as a two-sector linear system. Stationary state interclass exchanges are described by a sequential accounting Tableau of real and monetary holdings of each class at each step of the circulation process. A diagrammatic framework is...

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Testing biological hypotheses with embodied robots: adaptations, accidents, and by-products in the evolution of vertebrates

Publication Date
2014-November-12
Document Type
Document Type
Abstract

Evolutionary robotics allows biologists to test hypotheses about extinct animals. In our case, we modeled some of the first vertebrates, jawless fishes, in order to study the evolution of the trait after which vertebrates are named: vertebrae. …

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