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Social and Behavioral Sciences Commons™

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Life Sciences

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SelectedWorks

Selected Works

2002

Articles 1 - 7 of 7

Full-Text Articles in Social and Behavioral Sciences

Monitoring Pv In Corn And Soybean Oils By Nir Spectroscopy, Gülgün (Yildiz) Tiryaki Nov 2002

Monitoring Pv In Corn And Soybean Oils By Nir Spectroscopy, Gülgün (Yildiz) Tiryaki

Dr. Gülgün YILDIZ TIRYAKI

Gülgün Yildiz a, b, Randy L. Wehling*,a, and Susan L. Cuppett a a: Department of Food Science and Technology, University of Nebraska, Lincoln, Nebraska 68583-0919, and b: Olive Culture Research Institute, Universite Cd. No. 43, Bornova/Izmir, Turkey 3500. NIR spectroscopy was used successfully in our laboratory to monitor oxidation levels in vegetable oils. Calibration models were developed to measure PV in both soy and corn oils, using partial least squares (PLS) regression and forward stepwise multiple linear regression, from NIR transmission spectra. PV can be measured successfully in both corn and soy oils using a single calibration. The most successful …

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Language Plasticity Revealed By Electroencephalogram Mapping, Armando F. Rocha, Flávia B. Foz Jan 2002

Language Plasticity Revealed By Electroencephalogram Mapping, Armando F. Rocha, Flávia B. Foz

Armando F Rocha

Reasoning is the result of the computations made by intelligent systems, for instance those in the brain. It is not an abstract concept because calculations performed by computations are very concrete transactions among the different central processing unit components. Entropy measurements are proposed here to disclose the plasticity of the cerebral processing associated with language comprehension in video game playing. It is also assumed that entropy may be evaluated from the correlation coefficients obtained for the game event-related activity calculated for the different electroencephalogram derivations in the 10/20 system. The brain mapping derived from these entropy measurements clearly demonstrates the …

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Self Reliant Agriculture For Arid Lands, David A. Bainbridge Jan 2002

Self Reliant Agriculture For Arid Lands, David A. Bainbridge

David A Bainbridge

More than a billion people face the challenge of supporting themselves in the world's arid lands. Much can be improved by refining and adopting the best traditional practices and crops from around the world. The lessons learned can also help develop new and improved agronomic practices and crops.

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Athletes' Use Of Imagery In The Off-Season, Jennifer Cumming, Craig Hall Jan 2002

Athletes' Use Of Imagery In The Off-Season, Jennifer Cumming, Craig Hall

Jennifer Cumming

The purpose of this study was to examine the influence of competitive level on an athletes’ use of imagery in the off-season, and to examine whether their use of imagery was related to their physical and technical preparation. Three hundred and twenty-four regional, provincial, and national level athletes were recruited to participate in this study from 10 different sports. Participants were asked to complete a modified version of the Sport Imagery Questionnaire (SIQ; Hall, Mack, Paivio, & Hausenblas, 1998) that was designed to reflect an athletes’ use of imagery in the off-season. MANOVAs indicated that competitive level differences existed in …

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Ethological Causes And Consequences Of The Stress Response, Neil Greenberg, James A. Carr, Cliff H. Summers Jan 2002

Ethological Causes And Consequences Of The Stress Response, Neil Greenberg, James A. Carr, Cliff H. Summers

Neil Greenberg

Stress involves real or perceived changes within an organism or in the environment that activate an organism’s attempts to cope by means of evolutionarily ancient neural and endocrine mechanisms. Responses to acute stressors involve catecholamines released in varying proportion at different sites in the sympathetic and central nervous systems. These responses may interact with and be complemented by intrinsic rhythms and responses to chronic or intermittent stressors involving the hypothalamic-pituitary-adrenal axis. Varying patterns of responses to stressors are also affected by an animal=s assessment of their prospects for successful coping. Subsequent central and systemic consequences of the stress response include …

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Ethological Aspects Of Stress In A Model Lizard, Anolis Carolinensis, Neil Greenberg Jan 2002

Ethological Aspects Of Stress In A Model Lizard, Anolis Carolinensis, Neil Greenberg

Neil Greenberg

Research on the stress response in reptiles can provide a useful comparative perspective for understanding how the constituent elements of the response can be put into service of diverse behavioral adaptations. A summary of the neural and endocrine causes and consequences of specific behavioral patterns seen in the small diurnal lizard, Anolis carolinensis, has provided a model for the exploration of the dynamics of autonomic and neurohormonal contributions to adaptive behavior. In this species, changes in body color provide indices of the flux of circulating stress relevant hormones, and are seen in situations from spontaneous exploration through agonistic behavior. Furthermore, …

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Adaptive Functions Of The Corpus Striatum: The Past And Future Of The R-Complex, Neil Greenberg Jan 2002

Adaptive Functions Of The Corpus Striatum: The Past And Future Of The R-Complex, Neil Greenberg

Neil Greenberg

The basal ganglia is emerging from the shadow cast by the most conspicuous clinical expression of its dysfunction: motor disorders.What is revealed is the nexus of a widely distributed system which functions in integrating action with cognition, motivation, and affect. Prominent among non-motor functions are striatal involvement in building up of sequences of behavior into meaningful, goal-directed patterns and repertoires and the selection of appropriate learned or innate sequences in concert with their possible predictive control. Further, striatum seems involved in declarative and strategic memory (involving intentional recollection and the management of retrieved memories, respectively). Findings from reptile experiments indicate …

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