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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.

Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization

1School of Geography, Earth and Environmental Sciences, University of Birmingham, 2Analytical Science, National Physical Laboratory, 3INAC-LCIB, Université Grenoble Alpes, 4CEA, INAC-SyMMES, 5NIMBE, CEA, CNRS, Université Paris-Saclay, 6Chemical, Medical and Environmental Science, National Physical Laboratory, 7Division BAM 6.1 'Surface Analysis and Interfacial Chemistry', BAM Federal Institute for Materials Research and Testing, 8Fraunhofer IKTS, Fraunhofer Institute for Ceramic Technologies and Systems

Video Coming Soon

JoVE 56074


 JoVE In-Press

Drosophila Courtship Conditioning As a Measure of Learning and Memory

1Department of Human Genetics, Radboud University Medical Center, 2Radboud Institute of Molecular Life Sciences, Radboud University, 3Donders Institute for Brain, Cognition, and Behaviour, Centre for Neuroscience, Radboud University, 4Research Institute of Molecular Pathology, Vienna, Austria, 5Department for Health Evidence, Radboud University Medical Center, 6Janelia Research Campus, Howard Hughes Medical Institute, 7Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, 8Department of Biology, Faculty of Science, Western University

JoVE 55808


 Neuroscience

Imaging Metals in Brain Tissue by Laser Ablation - Inductively Coupled Plasma - Mass Spectrometry (LA-ICP-MS)

1Elemental Bio-imaging Facility, University of Technology Sydney, 2Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 3Department of Pathology, The University of Melbourne, 4School of Earth Sciences, The University of Melbourne, 5Research School, Ruhr University, 6Department of Physiology, Monash University, 7ESI Ltd., Bozeman, 8Agilent Technologies, Mulgrave

JoVE 55042


 Medicine

Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting

1Department of Nuclear Medicine and Radiobiology, Université de Sherbrooke, 2Sherbrooke Molecular Imaging Center (CIMS), Université de Sherbrooke, 3Sherbrooke Institute of Pharmacology

Video Coming Soon

JoVE 55440


 JoVE In-Press

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve

1Centro Cardiologico Monzino IRCCS, 2Cardiovascular Tissue Bank of Milan, Centro Cardiologico Monzino IRCCS, 3Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, 4Department of Cardiovascular Disease, Development and Innovation Cardiac Surgery Unit, Centro Cardiologico Monzino IRCCS

JoVE 55762


 Biochemistry

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

Functional Interrogation of Adult Hypothalamic Neurogenesis with Focal Radiological Inhibition

1Division of Biology, California Institute of Technology, 2Solomon H. Snyder Department of Neuroscience, Neurology, and Ophthalamology, Johns Hopkins University School of Medicine, 3Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, 4Department of Radiation Oncology, University Of Washington Medical Center, 5Institute for Cell Engineering and High-Throughput Biology Center, Johns Hopkins University School of Medicine

JoVE 50716


 Neuroscience

Using Retinal Imaging to Study Dementia

1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, 2Department of Medicine & Therapeutics, The Chinese University of Hong Kong, 3Therese Pei Fong Chow Research Centre for Prevention of Dementia, The Chinese University of Hong Kong, 4Gerald Choa Neuroscience Centre, The Chinese University of Hong Kong, 5Memory Aging and Cognition Centre, National University Health System, 6Department of Pharmacology, National University of Singapore, 7Singapore Eye Research Institute, Singapore National Eye Centre, 8Duke-NUS Medical School, National University of Singapore

Video Coming Soon

JoVE 56137


 JoVE In-Press

Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer

1Joint Unit Hospices de Lyon-bioMérieux, 2Medical Diagnostic Discovery Department, BioMérieux, 3Department of Pathology and Cytology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 4Medical Faculty, Lyon 1 University, 5Data and Knowledge Laboratory, BioMérieux, 6Department of Biochemistry and Molecular Biology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 7Department of Urology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon

JoVE 50713


 Medicine

Sample Extraction and Simultaneous Chromatographic Quantitation of Doxorubicin and Mitomycin C Following Drug Combination Delivery in Nanoparticles to Tumor-bearing Mice

1Department of Pharmaceutical Sciences, University of Toronto, 2Departments of Medical Biophysics and Radiation Oncology, University of Toronto, Ontario Cancer Institute, University Health Network

JoVE 56159


 Cancer Research

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States

1Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University School of Medicine, 2Parker H. Petit Institute for Bioengineering & Bioscience, Georgia Institute of Technology, 3George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology

JoVE 52019


 Medicine

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

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients

1Department of Biomedical Science, The Bateson Centre, University of Sheffield, 2Institute of Genetic Medicine, Newcastle University, 3Department of Cardiovascular Science, The Bateson Centre, University of Sheffield, 4School of Biochemistry, University of Bristol, 5Biology Department, University of York

JoVE 53162


 Developmental Biology

Technique to Target Microinjection to the Developing Xenopus Kidney

1Department of Pediatrics, Pediatric Research Center, University of Texas McGovern Medical School, 2Program in Genes & Development, University of Texas Graduate School of Biomedical Sciences, 3Program in Cell & Regulatory Biology, University of Texas Graduate School of Biomedical Sciences, 4Department of Genetics, University of Texas MD Anderson Cancer Center

JoVE 53799


 Developmental Biology

Flow-sorting and Exome Sequencing of the Reed-Sternberg Cells of Classical Hodgkin Lymphoma

1Innovation Laboratory, Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, 2Flow-Sorting Core Facility, Weill Cornell Medical College, 3Department of Laboratory Medicine, University of Washington, 4Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medical College, 5Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, 6Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center

JoVE 54399


 Genetics

Characterization of Ultra-fine Grained and Nanocrystalline Materials Using Transmission Kikuchi Diffraction

1School of Civil Engineering, The University of Sydney, 2Australian Centre for Microscopy and Microanalysis, The University of Sydney, 3Department of Earth and Planetary Sciences, Macquarie University, 4Charles Delaunay Institute, LASMIS, UMR STMR CNRS 6281, University of Technology of Troyes

JoVE 55506


 Engineering

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

1Department of Neurology, Harvard Medical School, 2Department of Neurology, Beth Israel Deaconess Medical Center, 3Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, 4Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, 5Department of Neurology, Massachusetts General Hospital

JoVE 53727


 Medicine

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