Salvador Rivas

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The aim of this experiment was to determine the effects of muscarinic blockade on extinction of passive avoidance conditioning. Rats were trained with a foot shock of 2.5, 3.0, or 6.0 mA and were tested for retention for 8 weeks (once weekly). Five minutes before the seventh test they were injected with 8 mg/kg scopolamine. The groups that had been trained(More)
While previous work has found cognitive ability to be strongly associated with whether older adults use the Internet, we consider whether cognitive ability also differentiates basic aspects of use. Four measures of use are considered: having high-speed access, length of time since initial household adoption, self-reported time using the Internet, and(More)
Paraneoplastic myelitis is a rare inflammatory disorder most frequently associated with solid tumors or lymphoproliferative disorders. Patients often harbor onconeuronal antibodies and their prognosis is usually poor. Here we report a 42-year old woman with longitudinally extensive transverse myelitis and aquaporin-4 (AQP4) antibodies that led to the(More)
INTRODUCTION The treatment of a hidden penis consists of completely and effectively exteriorizing the penile shaft from a functional and aesthetic point of view. PATIENTS AND METHODS Over a period of 15 months (02/2008-05/2009), we treated 7 children (mean age 4.6 years) with hidden penis (five had a buried penis, one had a webbed penis and another a(More)
We study whether the padlock and the signal strength bars, two visual cues shown in network managers, convey their intended messages. Since users often choose insecure networks when they should not, finding the answer is not obvious; in our study we clarify whether the problem lies in uninformative and ambiguous cues or in the user who, despite(More)
Research partnerships between industry and academia are grown through relationships, a desire for innovation, and opportunities for sponsorship. Relationships mature through the mobility (virtual or otherwise) of academics, graduates, and seasoned industry professionals. From an industry perspective, innovation is driven by a need to grow product(More)
paper also benefited from comments and suggestions made by colleagues and students at the Demography Seminar, UW-Madison, and at a seminar presented at the Hebrew University of Jerusalem. Abstract. This study assesses the effect of population change on decade changes in the educational attainment level of ethnic (ancestry) populations in the United States.(More)