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Normal Distribution: Continuous frequency distribution of infinite range. Its properties are as follows: 1, continuous, symmetrical distribution with both tails extending to infinity; 2, arithmetic mean, mode, and median identical; and 3, shape completely determined by the mean and standard deviation.

Simple and Effective Administration and Visualization of Microparticles in the Circulatory System of Small Fishes Using Kidney Injection

1Institute of Biology at Irkutsk State University, 2Institute of Biology at Karelian Research Centre of Russian Academy of Sciences, 3Baikal Research Centre, 4Institute of Materials Research and Engineering, Agency for Science, Technology, and Research (A*STAR), 5University of Oulu, Optoelectronics and Measurement Techniques Laboratory

JoVE 57491


 Biology

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System

1Department of Obstetrics & Gynecology, "Virgen de la Arrixaca", University Clinical Hospital, 2Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 3Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 4Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), 5Department of Preventive Medicine, "Virgen de la Arrixaca", University Clinical Hospital

JoVE 57912


 Medicine

Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine

1Applied Brain Science Laboratory, Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2Department of Informatics, Graduate School of Informatics and Engineering, The University of Electro-Communications, 3Department of Media and Image Technology, Faculty of Engineering, Tokyo Polytechnic University

JoVE 53970


 Behavior

A High Content Imaging Assay for Identification of Botulinum Neurotoxin Inhibitors

1Perkin Elmer Inc., 2Henry M. Jackson Foundation, 3The Geneva Foundation, 4ORISE, 5Frederick National Laboratory for Cancer Research, 6Division of Molecular and Translational Sciences, US Army Medical Research Institute of Infectious Diseases, 7DoD Biotechnology High Performance Computing Software Applications Institute (BHSAI), Telemedicine and Advanced Technology Research Center (TATRC), US Army Medical Research and Materiel Command (USAMRMC)

JoVE 51915


 Neuroscience

The Precision of Visual Working Memory with Delayed Estimation

JoVE 10020

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University

Human memory is limited. Throughout most of its history, experimental psychology has focused on investigating the discrete, quantitative limits of memory—how many individual pieces of information a person can remember. Recently, experimental psychologists have also become interested in more qualitative limits—how precisely is information stored? The concept of memory precision can be both intuitive and elusive at once. It is intuitive, for example, to think a person can remember precisely how their mother sounds, making it possible to recognize one’s mother immediately over the phone or in a crowd. But how can one quantify the precision of such a memory? Exactly how similar is the memory to the voice itself? To study the precision of memory and working memory, in particular, experimental psychologists have devised a paradigm known as delayed estimation. It has been used most often, thus far, to study the precision of visual memories, especially memory for color, and to understand how memory degrades the more one tries to remember at once. This video demonstrates standard procedures for investigating the precision of color working memory using delayed estim


 Cognitive Psychology

Measurement of Survival Time in Brachionus Rotifers: Synchronization of Maternal Conditions

1Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 2School of Marine Biosciences, Department of Marine Biosciences, Kitasato University, 3Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, 4School of Arts and Sciences, University of Houston-Victoria

JoVE 54126


 Biology

Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor

1School of Engineering and Applied Sciences, Harvard University, 2Department of Environmental Science and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, 3Department of Chemistry, Northwestern University, 4Department of Earth and Planetary Sciences, Harvard University

JoVE 55684


 Environment

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