Tracale Austin

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Panic disorder is characterized by spontaneous and recurrent panic attacks, often accompanied by agoraphobia. The results of family, twin, and segregation studies suggest a genetic role in the etiology of the illness. We have genotyped up to 23 families that have a high density of panic disorder with 540 microsatellite DNA markers in a first-pass genomic(More)
In order to provide some detailed information on the feeding behavior of freely-feeding dogs, four adult beagles were maintained in an isolated outdoor environment where food and water were freely available. Observations across an 8-month period indicated that the dogs are episodically (in "meals") and that the total daily intake of food and water changed(More)
The feeding behavior of dogs in one-pan and two-pan tests was measured in the usual way (total food intake in the test) and at a fine-grained level (cumulative amount eaten on a moment-by-moment basis during the test). The four experiments reported studied dogs' reactions to different dry foods, and to semi-moist and canned foods. The fine-grained measures(More)
The traditional two-pan choice test and an operant lever-press choice test were used to assess dogs' preferences between various foods. In the first two experiments the foods differed in flavor as manipulated by the amount of fat-coating added to a dry-food base. In the third experiment, the foods were commercially-available dry and semi-moist dog foods.(More)
An apparatus for making fine-grained measurements of eating and drinking in dogs is described. Examples of how this computer controlled measurement system can be used to illustrate eating behavior in one- and two-pan tests are given. Also, very fine-grained measurements are illustrated in illustrating a single meal segment and a single water drinking bout.
Use of a REMUS-100 AUV to obtain hydrographic observations beneath coastal sea ice offshore of Barrow, Alaska is described. The work is motivated by the desire to obtain crossshore hydrographic transects that would provide estimates of the transport of relatively dense, salty water from the Chukchi Sea to the Arctic Ocean in winter. The horizontal scales(More)
We show that under some natural ergodicity assumptions extensions given by Rokhlin cocycles lift the multiplier property if the associated locally compact group extension has only countably many L-eigenvalues. We make use of some analogs of basic results from the theory of finite-rank modules associated to an extension of measure-preserving systems in the(More)
We then define the Pfaffian transformation of (a0, a1, a2, ...) to be the sequence of Pfaffians (Pf(A0), P f(A1), P f(A2), ...), where the Pfaffian of a skew-symmetric matrix is the positive or negative square root of its determinant. (For a precise definition of the Pfaffian, see section 2.) The Pfaffian transformation is thus a function from sequences to(More)
We show that under some natural ergodicity assumptions extensions given by Rokhlin cocycles lift the multiplier property if the associated locally compact group extension has only countably many L-eigenvalues. We make use of some analogs of basic results from the theory of finite-rank modules associated to an extension of measure-preserving systems in the(More)
We introduce a function on sequences, which we call the Pfaffian transform, using the Pfaffian of a skew-symmetric matrix. We establish several basic properties of the Pfaffian transform, and we use the transfer matrix method to show that the set of sequences with rational generating functions is closed under the Pfaffian transform. We conclude by computing(More)