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Multivariate Analysis: A set of techniques used when variation in several variables has to be studied simultaneously. In statistics, multivariate analysis is interpreted as any analytic method that allows simultaneous study of two or more dependent variables.
 JoVE Environment

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils

1Department of Renewable Resources, University of Alberta, 2Department of Science, Augustana Faculty, University of Alberta, 3Laboratoire Génie Civil et géo-Environnement, Université de Lille, 4Department of Earth and Environmental Sciences, Mount Royal University, 5Forest Ecology & Production, Great Lakes Forestry Centre, Natural Resources Canada


JoVE 54360

 JoVE Developmental Biology

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings

1Département de sciences cliniques, CHUV, Université de Montréal, St-Hyacinthe, QC, 2Département d'obstetriques et de gynécologie, CHU Ste-Justine Research Centre, Université de Montréal, 3Département de neurosciences, CHU Ste-Justine Centre de recherche, Université de Montréal, 4Centre de recherche en reproduction animale (CRRA), Université de Montréal, St-Hyacinthe, QC


JoVE 52581

 JoVE Bioengineering

Non-contact, Label-free Monitoring of Cells and Extracellular Matrix using Raman Spectroscopy

1Department of Thoracic and Cardiovascular Surgery and Inter-University Centre for Medical Technology Stuttgart-Tübingen (IZST), Eberhard Karls University, Tübingen, 2Department of Cell and Tissue Engineering, Fraunhofer Institute of Interfacial Engineering and Biotechnology (IGB) Stuttgart, Germany, 3Department for Medical Interfacial Engineering (IGVT), University of Stuttgart, Germany, 4Institute of Tissue Engineering and Regenerative Medicine, Julius-Maximillians University, Würzburg, Germany


JoVE 3977

 JoVE Engineering

Making Record-efficiency SnS Solar Cells by Thermal Evaporation and Atomic Layer Deposition

1Department of Mechanical Engineering, Massachusetts Institute of Technology, 2Laboratory for Manufacturing and Productivity, Massachusetts Institute of Technology, 3School of Engineering and Applied Sciences, Harvard University, 4Department of Materials Science and Engineering, Massachusetts Institute of Technology, 5Department of Chemistry & Chemical Biology, Harvard University


JoVE 52705

 JoVE Behavior

Examination of Rapid Dopamine Dynamics with Fast Scan Cyclic Voltammetry During Intra-oral Tastant Administration in Awake Rats

1Interdepartmental Neuroscience Program, Yale University, 2Department of Biotechnical and Clinical Laboratory Sciences, School of Medicine and Biomedical Sciences, University at Buffalo, 3Department of Psychiatry, Yale School of Medicine, 4Department of Cellular and Molecular Physiology, Yale School of Medicine


JoVE 52468

 JoVE Medicine

An Investigation of the Effects of Sports-related Concussion in Youth Using Functional Magnetic Resonance Imaging and the Head Impact Telemetry System

1Graduate Department of Rehabilitation Science, University of Toronto, 2Occupational Science and Occupational Therapy, University of Toronto, 3Department of Psychology, University of Toronto, 4Bloorview Kids Rehab, 5Toronto Rehab, 6Cognitive Neurology, Sunnybrook Health Sciences Centre, 7Faculty of Medicine, University of Toronto


JoVE 2226

 JoVE Chemistry

Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements

1United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 2Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3Institute of Agriculture, Tokyo University of Agriculture and Technology


JoVE 53981

 JoVE Engineering

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

1School of Chemistry, University of Sydney, 2Institute for Superconducting & Electronic Materials, University of Wollongong, 3Australian Synchrotron, 4Australian Nuclear Science and Technology Organisation, 5School of Mechanical, Materials, and Mechatronic Engineering, University of Wollongong, 6School of Chemistry, University of New South Wales


JoVE 52284

 JoVE Developmental Biology

Automated Quantification of Hematopoietic Cell – Stromal Cell Interactions in Histological Images of Undecalcified Bone

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


JoVE 52544

 JoVE Behavior

Recording Mouse Ultrasonic Vocalizations to Evaluate Social Communication

1Human Genetics and Cognitive Functions, University Paris Diderot, CNRS UMR 3571, Institut Pasteur, 2Neurophysiology and Behavior, University Pierre et Marie Curie Paris 6, CNRS UMR 7102, 3Bio Image Analysis, CNRS URA 2582, Institut Pasteur


JoVE 53871

 JoVE Neuroscience

Flow Cytometry Protocols for Surface and Intracellular Antigen Analyses of Neural Cell Types

1Emmy Noether-Group for Stem Cell Biology, Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, 2Spemann Graduate School of Biology and Medicine and Faculty of Biology, University of Freiburg, 3School of Life Sciences, Keele University, 4Center for Biological Signaling Studies (BIOSS), University of Freiburg


JoVE 52241

 JoVE Bioengineering

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

1Department of Biomedical Engineering, Washington University in St. Louis, 2Department of Physics, Washington University in St. Louis, 3Division of Biology and Biomedical Sciences, Washington University in St. Louis, 4Department of Medicine, Cardiovascular Division, Washington University in St. Louis, 5Cardiovascular Biophysics Lab, Washington University in St. Louis


JoVE 51471

 JoVE Behavior

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach

1Cluster of Excellence "Languages of Emotion", Freie Universität Berlin, 2Department of Psychiatry, Campus Benjamin Franklin, Charité Berlin, 3Dahlem Institute for Neuroimaging of Emotion, Freie Universität Berlin, 4Clinic for Affective Disorders and General Psychiatry, Psychiatric University Hospital Zurich


JoVE 50942

 Science Education: Essentials of Experimental Psychology

Placebos in Research

JoVE Science Education

Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University

Clinical research focuses on the efficacy of treatments for addressing disorders and illnesses. A challenge with this type of research is that participants often have pre-existing beliefs about the treatment, particularly expectations that the treatment will work. Though it has been practiced around the world for centuries, yoga is a relatively recent fitness craze in the United States with a wide range of alleged benefits, including the belief that it improves one’s creativity. However, it is not always clear whether yoga is actually creating the benefits, like improved creativity, or the yoga practitioner’s expectations are really the cause. This video demonstrates a two-group design that examines whether a person who believes he or she is doing yoga (but in reality is not) experiences similar benefits to a person who actually does yoga. Specifically, this study looks at whether there is a placebo effect such that merely believing you are doing yoga benefits creativity.  Psychological studies often use higher sample sizes than studies in other sciences. A large number of participants help

 JoVE Biology

An Analytical Tool that Quantifies Cellular Morphology Changes from Three-dimensional Fluorescence Images

1Medications Development, Ernest Gallo Clinic and Research Center, University of California, San Francisco, 2Clinical Pharmacology and Experimental Therapeutics, University of California, San Francisco, 3Translational Research Institute and the Institute for Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia


JoVE 4233

 JoVE Neuroscience

Brain Imaging Investigation of the Neural Correlates of Observing Virtual Social Interactions

1Department of Computing Science, University of Alberta, 2Department of Psychology, University of Illinois, 3Centre for Neuroscience, University of Alberta, 4Department of Psychology, University of Alberta, 5Department of Marketing, Business Economics, and Law, University of Alberta, 6Neuroscience Program, University of Illinois at Urbana-Champaign, 7Beckman Institute, University of Illinois at Urbana-Champaign


JoVE 2379

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