University of Nevada, Reno

About: University of Nevada, Reno is a education organization based out in Reno, Nevada, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13561 authors who have published 28217 publications receiving 882002 citations. The organization is also known as: University of Nevada & Nevada State University.

The verbal action of the listener as a basis for rule-governance.

Abstract: In the traditional behavior-analytic account, most psychologically significant behavior (i.e., that of whole organisms in and with a context) is thought ultimately to be contingency shaped. An important subset of this behavior is rule-governed (Skinner, 1966, 1969, Chapter 6). Skinner (1969, p. 146) provides a worthwhile example. An outfielder moves to catch a ball. Following its trajectory, he moves under it and grasps it with his glove. Skinner views this event as contingency shaped. The outfielder is simply responding, as he has done hundreds of times before, based on the effects his behavior has on moving toward the ball. Skinner contrasts this with the ship captain moving to “catch” a descending satellite. The trajectory of the satellite is analyzed in detail. Mathematical models are consulted that take into account a host of factors such as wind speed and drag coefficients. Its place of impact is predicted and approached. This behavior is not controlled directly by the past consequences of the captain trying to catch satellites. The behavior has not had an opportunity to be shaped by such consequences—it is controlled by rules.

Factors Affecting Science Teaching Efficacy of Preservice Elementary Teachers

Abstract: (2003). Factors Affecting Science Teaching Efficacy of Preservice Elementary Teachers. Journal of Science Teacher Education: Vol. 14, No. 3, pp. 177-192.

Air pollutants, oxidative stress and human health

Abstract: Air pollutants have, and continue to be, major contributing factors to chronic diseases and mortality, subsequently impacting public health. Chronic diseases include: chronic obstructive pulmonary diseases (COPD), cardiovascular diseases (CVD), asthma, and cancer. Byproducts of oxidative stress found in air pollutants are common initiators or promoters of the damage produced in such chronic diseases. Such air pollutants include: ozone, sulfur oxides, carbon monoxide, nitrogen oxides, and particulate matter. Interaction between oxidative stress byproducts and certain genes within our population may modulate the expression of specific chronic diseases. In this brief review we attempt to provide some insight into what we currently know about the health problems associated with various air pollutants and their relationship in promoting chronic diseases through changes in oxidative stress and modulation of gene expression. Such insight eventually may direct the means for effective public health prevention and treatment of diseases associated with air pollution and treatment of diseases associated with air pollution.

The Pharmacology of Ryanodine and Related Compounds

Abstract: The goal of this review has been to describe the current state of the pharmacology of ryanodine and related compounds relative to the vertebrate RyRs. Resolution of questions concerning the molecular properties of RyR channel function and the contributions made by the RyR isoforms to cellular signaling in a variety of tissues will require the production of new pharmacological agents directed against these proteins. Novel naturally occurring ryanodine congeners have been identified, and significant advances have been made in developing chemical approaches that permit the structure of ryanodine to be derivatized in selective ways. Moreover, several of these changes have yielded compounds that differ in their binding affinities and in their abilities to modify the properties of the RyR channels. These advances give substance to the possibility of designing the required pharmacological agents based on rational design changes of the structure ryanodine.

Flares in Long and Short Gamma-Ray Bursts: A Common Origin in a Hyperaccreting Accretion Disk

Abstract: Early-time X-ray observations of gamma-ray bursts (GRBs) with the Swift satellite have revealed a more complicated phenomenology than was known before. In particular, the presence of flaring activity on a wide range of timescales probably requires late-time energy production within the GRB engine. Since the flaring activity is observed in both long and short GRBs, its origin must be within what is in common for the two likely progenitors of the two classes of bursts: a hyperaccreting accretion disk around a black hole of a few solar masses. Here we show that some of the observational properties of the flares, such as the duration-timescale correlation, and the duration-peak luminosity anticorrelation displayed by most flares within a given burst, are qualitatively consistent with viscous disk evolution, provided that the disk at large radii either fragments or otherwise suffers large-amplitude variability. We discuss the physical conditions in the outer parts of the disk and conclude that gravitational instability, possibly followed by fragmentation, is the most likely candidate for this variability.