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Signal-To-Noise Ratio: The comparison of the quantity of meaningful data to the irrelevant or incorrect data.

Tandem Mass Spectrometry

JoVE 5690

In tandem mass spectrometry a biomolecule of interest is isolated from a biological sample, and then fragmented into multiple subunits in order to help elucidate its composition and sequence. This is accomplished by having mass spectrometers in series. The first spectrometer ionizes a sample and filter ions of a specific mass to charge ratio. Filtered ions are then fragmented and passed to a…

 Biochemistry

Computational Fluid Dynamics Simulations of Blood Flow in a Cerebral Aneurysm

JoVE 10479

Source: Joseph C. Muskat, Vitaliy L. Rayz, and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


The objective of this video is to describe recent advancements of computational fluid dynamic (CFD) simulations based on patient- or animal-specific vasculature. Here,…

 Biomedical Engineering

X-ray Photoelectron Spectroscopy

JoVE 10474

Source: Faisal Alamgir, School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA


X-ray photoelectron spectroscopy (XPS) is a technique that measures the elemental composition, empirical formula, chemical state and electronic state of the elements that exist within a material. XPS spectra are obtained by…

 Materials Engineering

Visual Attention: fMRI Investigation of Object-based Attentional Control

JoVE 10272

Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel— University of Southern California


The human visual system is incredibly sophisticated and capable of processing large amounts of information very quickly. However, the brain's capacity to process information is not an unlimited resource. Attention, the ability to…

 Neuropsychology

Motor Maps

JoVE 10175

Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California


One principle of brain organization is the topographic mapping of information. Especially in sensory and motor cortices, adjacent regions of the brain tend to represent information from adjacent parts of the body, resulting in maps of the…

 Neuropsychology

ELISA Assays: Indirect, Sandwich, and Competitive

JoVE 10496

Source: Whitney Swanson1,2, Frances V. Sjaastad2,3, and Thomas S. Griffith1,2,3,4
1 Department of Urology, University of Minnesota, Minneapolis, MN 55455
2 Center for Immunology, University of Minnesota, Minneapolis, MN 55455
3 Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455
4 Masonic…

 Immunology

Learning and Memory: The Remember-Know Task

JoVE 10212

Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California


Our experience of memory is varied and complex. Sometimes we remember events in vivid detail, while other times we may only have a vague sense of familiarity. Memory researchers have made a distinction between memories that are recollected…

 Neuropsychology

X-ray Fluorescence (XRF)

JoVE 5498

Source: Laboratory of Dr. Lydia Finney — Argonne National Laboratory


X-ray fluorescence is an induced, emitted radiation that can be used to generate spectroscopic information. X-ray fluorescence microscopy is a non-destructive imaging technique that uses the induced fluorescence emission of metals to identify and quantify their…

 Analytical Chemistry

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging

1Department of Nuclear Medicine, Klinikum rechts der Isar, Technische Universität München, 2Department of Chemistry, Technische Universität München, 3GE Global Research, 4Zentralinstitut für Medizintechnik der Technischen Universität München (IMETUM), Technische Universität München, 5Institute for Biological and Medical Imaging (IBMI), Helmholtz Zentrum München, 6IDG Institute of Developmental Genetics, Helmholtz Zentrum München

JoVE 54751

 Cancer Research

High-throughput Detection Method for Influenza Virus

1Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, 2Department of Microbiology, Mount Sinai School of Medicine, 3Laboratory of Molecular Genetics, Blood Research Institute, 4City of Milwaukee Health Department Laboratory, 5Division of Hematology-Oncology/BMT, Children's Hospital of Wisconsin, Medical College of Wisconsin, 6Division of Hematology and Oncology, Dept Medicine, Medical College of Wisconsin

JoVE 3623

 Immunology and Infection

Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers

1Biophysical Analytics, German Rheumatism Research Center, Leibniz Institute, 2Microscopy Core Facility, Max-Delbrück Center for Molecular Medicine, 3Immunodynamics, German Rheumatism Research Center, Leibniz Institute, 4LaVision Biotec GmbH, 5Immunodynamics and Intravital Imaging, Charité - University of Medicine

JoVE 51135

 Immunology and Infection

Imaging the Human Immunological Synapse

1Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-Universidad Autónoma de Madrid, 2Departamento de Bioquímica, Instituto de Investigaciones Biomédicas Alberto Sols CSIC-UAM, Facultad de Medicina, Universidad Autónoma de Madrid, 3Unidad de Audiovisuales, Facultad de Medicina, Universidad Autónoma de Madrid

JoVE 60312

 Immunology and Infection

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

1Institute of Imaging Science, Vanderbilt University, 2Department of Radiology and Radiological Sciences, Vanderbilt University, 3Department of Biomedical Engineering, Vanderbilt University, 4Department of Molecular Physiology and Biophysics, Vanderbilt University, 5Department of Physical Medicine and Rehabilitation, Vanderbilt University, 6Department of Physics and Astronomy, Vanderbilt University

JoVE 52352

 Medicine

Radiotracer Administration for High Temporal Resolution Positron Emission Tomography of the Human Brain: Application to FDG-fPET

1Monash Biomedical Imaging, Monash University, 2Australian Research Council Centre of Excellence for Integrative Brain Function, 3Turner Institute for Brain and Mental Health, Monash University, 4Department of Medical Imaging, Monash Health, 5Department of Electrical and Computer Systems Engineering, Monash University

JoVE 60259

 Behavior

Extracellular Recording of Neuronal Activity Combined with Microiontophoretic Application of Neuroactive Substances in Awake Mice

1Auditory Neuroscience Laboratory, Institute of Neuroscience of Castilla y León, University of Salamanca, 2Neural Systems Laboratory, Institute for Systems Research, University of Maryland, 3Medical Research Council Institute of Hearing Research, 4Department of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca

JoVE 53914

 Neuroscience

Optical Imaging of Isolated Murine Ventricular Myocytes

1Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China, 2Central Nodal (Anhui) Bioscience and Technology Research Center, Hefei, Anhui, China, 3Pediatric Cardiac and Thoracic Surgery, University Hospitals Cleveland Medical Center

JoVE 60196

 Bioengineering

Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice

1Experimental Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices, 2KBRwyle GmbH, 3Cognitive Neurophysiology, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Cologne, 4Molecular and Cellular Cognition, German Center for Neurodegenerative Diseases (DZNE), 5Institute of Neurophysiology, Faculty of Medicine, University of Cologne, 6Federal Institute for Drugs and Medical Devices (BfArM), 7Thescon GmbH

JoVE 59200

 Neuroscience

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing (MTT)

1Institut National de la Santé et de la Recherche Médicale, UMR 631, Parc scientifique de Luminy, 2Centre National de la Recherche Scientifique, UMR 6102, Parc scientifique de Luminy, 3Centre d'Immunologie de Marseille-Luminy, Aix-Marseille University, 4École Centrale Marseille, Technopôle de Château-Gombert, 5Institut Fresnel, Aix-Marseille University, 6Centre National de la Recherche Scientifique, UMR 6133, Aix-Marseille University

JoVE 3599

 Biology

High-Throughput Analysis of Optical Mapping Data Using ElectroMap

1Institute of Cardiovascular Sciences, University of Birmingham, 2EPSRC Centre for Doctoral Training in Physical Sciences for Health, School of Chemistry, University of Birmingham, 3School of Computer Science, University of Birmingham, 4Institute of Clinical Sciences, University of Birmingham, 5Institute of Microbiology and Infection, School of Biosciences, University of Birmingham

JoVE 59663

 Medicine
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