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Piantadosi, Patrick T.; Lieberman, Abby G.; Pickens, Charles L.; Bergstrom, Hadley C.; Holmes, Andrew – Learning & Memory, 2019
Cognitive flexibility refers to various processes which enable behaviors to be modified on the basis of a change in the contingencies between stimuli or responses and their associated outcomes. Reversal learning is a form of cognitive flexibility which measures the ability to adjust responding based on a switch in the stimulus--outcome…
Descriptors: Animals, Cognitive Processes, Behavior Modification, Stimuli
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Ryan, Amy B.; Elwess, Nancy L. – Bioscene: Journal of College Biology Teaching, 2017
This investigative laboratory activity engages students in observing, recording, graphing and analyzing pulsation rates in a commonly used laboratory organism, blackworms. This activity stresses how various drugs can impact the pulsation rate in blackworms at varying concentrations. In addition, we have incorporated two new ways to view the…
Descriptors: Science Instruction, Science Experiments, Science Activities, Science Laboratories
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Flohr, Josh R.; Tokach, Mike D.; DeRouchey, Joel M.; Goodband, Robert D.; Dritz, Steve S.; Nelssen, Jim L.; Patience, John F. – Journal of Extension, 2014
A voluntary sample of pork producers and advisers to the swine industry were surveyed about feed efficiency. The questionnaire was designed to accomplish three objectives: (a) determine the level of knowledge related to feed efficiency topics, (b) identify production practices used that influence feed efficiency, and (c) identify information gaps…
Descriptors: Extension Education, Food, Animals, Questionnaires
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Jiao, Li; Xiujuan, Shi; Juan, Wang; Song, Jia; Lei, Xu; Guotong, Xu; Lixia, Lu – Biochemistry and Molecular Biology Education, 2015
For second year medical students, we redesigned an original laboratory experiment and developed a combined research-teaching clinical biochemistry experiment. Using an established diabetic rat model to detect blood glucose and triglycerides, the students participate in the entire experimental process, which is not normally experienced during a…
Descriptors: Medical Students, Medical Education, Animals, Science Laboratories
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Johnson, Alexander W.; Han, Sungho; Blouin, Ashley M.; Saini, Jasjit; Worley, Paul F.; During, Matthew J.; Holland, Peter C.; Baraban, Jay M.; Reti, Irving M. – Learning & Memory, 2010
Neuronal activity regulated pentraxin (Narp) is a secreted protein that regulates [alpha]-amino-3-hydroxyl-5-methyl-4-isoxazole-propionate receptors (AMPAR) aggregation and synaptogenesis. Mapping of Narp-positive neurons in brain has revealed it is prominently expressed in several limbic system projection pathways. Consistent with this…
Descriptors: Animals, Brain Hemisphere Functions, Reinforcement, Neurological Impairments
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Kalinowski, Steven T.; Leonard, Mary J.; Andrews, Tessa M. – CBE - Life Sciences Education, 2010
Natural selection is one of the most important concepts for biology students to understand, but students frequently have misconceptions regarding how natural selection operates. Many of these misconceptions, such as a belief in "Lamarckian" evolution, are based on a misunderstanding of inheritance. In this essay, we argue that evolution…
Descriptors: Genetics, Biology, Misconceptions, Evolution