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Georgia State University

2006

Physiology

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Identification And Functional Analysis Of Crustacean Serotonin Receptors., Nadja Spitzer Jul 2006

Identification And Functional Analysis Of Crustacean Serotonin Receptors., Nadja Spitzer

Biology Dissertations

Constantly changing environments force animals to adapt by cycling through multiple physiological states. Plasticity in sensory, motor, and modulatory neural circuits is an essential part of these adaptive processes. Invertebrates with their accessible, identifiable neurons are excellent models for investigating the molecular and cellular mechanisms underlying state-dependent neural plasticity, and provide insight into similar processes in more complex systems. These properties have allowed highly detailed characterization of several crustacean circuits with respect to their connectivities, cellular properties, responses to various inputs, and outputs. Serotonin (5-HT) is an important neuromodulator in virtually every animal species. 5-HT signals are mediated primarily by …


Nietzsche On The Future And Value, John Ranta Jul 2006

Nietzsche On The Future And Value, John Ranta

Philosophy Theses

This thesis addresses two interpretative questions concerning the philosophy of Friedrich Nietzsche. The first is to ascertain the primary objection that Nietzsche has to a morality that he describes as decadent. The conclusion reached is that Nietzsche’s objection to decadent morality is based on the harm it does to a class of “higher” individuals who have valuable work to perform in achieving a desirable future for humanity. The second question is to determine the manner in which Nietzsche’s own values are to be understood based on the skepticism he expresses concerning the objectivity of value. The conclusion reached is that …