OBJECTIVE To characterize risk factors, clinical findings, usefulness of diagnostic tests, and prognosis in cats with naturally occurring heartworm infection (HWI). DESIGN Retrospective study. ANIMALS 50 cats with Dirofilaria immitis infection. PROCEDURE Medical records, thoracic radiographs, and echocardiograms were reviewed and findings compared with appropriate reference populations. ...

in this paper we introduce a simple, computationally inxepentsive, adaptive recursive structure for enhancing bandpass signals highly corrupted by broad-band noise. this adaptive algorithm, enhancing input signals, enables us to estimate the center frequency and the bandwidth of the input signal. in addition, an important feature of the proposed structure is that the conventional bias existing ...

INTRODUCTION Computerized adaptive testing offers the advantages of more precise and efficient ability estimation and more flexible scheduling for testing when compared with conventional linear tests. Both item-level and testlet-level computerized adaptive tests have proved to be useful alternatives to the conventional paper-and-pencil tests. However, a potential problem is test security. In co...

Human analog tests of object permanence were administered to adult cats in order to assess as accurately as possible their developmental level in this particular cognitive capacity and to analyze their search behavior in situations in which an object has disappeared. Experiment 1 compared two groups, one that received the tests in their usual order of presentation and another that received firs...

Parasite Biology, Epidemiology and Systematics Laboratory, Animal and Natural Resources Institute, Agricultural Research Service, United States Department of Agriculture, Building 1001, Beltsville, Maryland 20705-2350 Antibodies to Neospora caninum and Sarcocystis neurona were determined in serum samples of 502 domestic cats from Brazil using direct agglutination tests with the respective antig...

Hypoand anorexia are the most commonly presented complaints for many diseases in veterinary medicine, leading to malnutrition, immunosuppression, compromised wound healing and altered drug metabolism. Stimulating appetite and palatability are therefore important factors in managing anorectic pets. The palatability of a liquid nutritional supplement for cats (LNScat) and dogs (LNSdog), which can...

a 29-year-old housewife presented with abdominal pain and abnormal results on liver function tests (table 1). the patient was from a rural area (garmsar, iran) and there was no family history of a similar disease. her family owned various animals most notably jackals, dogs, and cats. the animals were not receiving regular veterinary check-ups, preventive care, or even vaccinations.

A difficult result to interpret in Computerized Adaptive Tests (CATs) occurs when an ability estimate initially drops and then ascends continuously until the test ends, suggesting that the true ability may be higher than implied by the final estimate. We explain why this asymmetry occurs and show that early mistakes by high ability students can lead to considerable underestimation, even in test...