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Mitotic Index: An expression of the number of mitoses found in a stated number of cells.
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Mammalian Cell Division in 3D Matrices Via Quantitative Confocal Reflection Microscopy

1Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 2Johns Hopkins Physical Sciences - Oncology Center, Johns Hopkins University, 3Department of Biomedical Engineering, Johns Hopkins University, 4Departments of Oncology and Pathology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine

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JoVE 56364


 JoVE In-Press

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Adenofection: A Method for Studying the Role of Molecular Chaperones in Cellular Morphodynamics by Depletion-Rescue Experiments

1Département de biologie moléculaire, biochimie médicale et pathologie, Faculté de médecine, Centre de recherche sur le cancer de l'Université Laval, 2Oncology, Centre de recherche du CHU de Québec, Université Laval, 3Laboratoire d'études moléculaires des valvulopathies (LEMV), Groupe de recherche en valvulopathies (GRV), Quebec Heart and Lung Institute/Research Center, 4Department of Surgery, Université Laval

JoVE 54557


 Biology

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Preparation of Primary Acute Lymphoblastic Leukemia Cells in Different Cell Cycle Phases by Centrifugal Elutriation

1Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, 2Department of Experimental Therapeutics, University of Texas MD Anderson Cancer Center, 3Department of Cell and Molecular Biology, St. Jude Children's Research Hospital

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JoVE 56418


 JoVE In-Press

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Reflection and Refraction

JoVE 10409

Source: Derek Wilson, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA

Light travels at different speeds depending on the material through which it is propagating. When light travels from one material to another, it will either slow down or speed up. In order to conserve energy and momentum, the light must change the direction in which it propagates. This bending of light is known as refraction. Some fraction of the light is also reflected at the interface between the two materials. In special cases, a light beam can be refracted so sharply at an interface that it is actually completely reflected back into the medium from which it was coming. Lenses make use of the principle of refraction. Lenses come in two varieties with different curvatures: convex lenses and concave lenses. Convex lenses are often used to focus light but can also be used to create magnified images of objects. When a convex lens causes the light rays coming from an object to diverge, the human eye judges the light to be coming from some point behind the actual object from which the light is originating. The image of the object will in this case be magnified. This type of image is called a virtual image. Concave


 Physics II

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A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster

1Department of Biology, College of the Holy Cross, 2School of Medicine, Georgetown University, 3Department of Biochemistry, Giesel School of Medicine, Dartmouth College, 4School of Medicine, Tufts University, 5Transgenomic Inc., 6Department of Molecular, Cell and Cancer Biology, UMass Medical School

JoVE 53537


 Neuroscience

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Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements

1Department of Molecular Medicine, Sapienza University of Rome, 2Department of Communication and Social Research, Sapienza University of Rome, 3Department of Anatomical, Histological, Forensic, and Orthopedic Sciences, Sapienza University of Rome, 4BrainSigns SRL

JoVE 55872


 Neuroscience

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Multimodal Quantitative Phase Imaging with Digital Holographic Microscopy Accurately Assesses Intestinal Inflammation and Epithelial Wound Healing

1Department of Medicine B, University Hospital Münster, 2Institute of Palliative Care, University Hospital Münster, 3Biomedical Technology Center, University of Münster, 4Department of Gastroenterology, Klinikum Bielefeld

JoVE 54460


 Medicine

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