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Oxygen Consumption: The rate at which oxygen is used by a tissue; microliters of oxygen Stpd used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)
 JoVE Biology

Determining the Contribution of the Energy Systems During Exercise

1Laboratory of Applied Nutrition, School of Physical Education and Sport, University of Sao Paulo, 2Aerobic Performance Research Group, School of Physical Education and Sport, University of Sao Paulo, 3Laboratory of Neuromuscular Adaptations to Strength Training, School of Physical Education and Sport, University of Sao Paulo, 4Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of Sao Paulo


JoVE 3413

 JoVE Medicine

Non-invasive Optical Measurement of Cerebral Metabolism and Hemodynamics in Infants

1Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, 2Lab. PALM, Université de Caen Basse-Normandie, 3Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children's Hospital, Harvard Medical School, 4ISS, INC.


JoVE 4379

 JoVE Environment

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

1Bioprocesses Department, Laboratory of Environmental Biotechnology, Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, 2Laboratory of Molecular Biology, Escuela Superior de Medicina, Instituto Politécnico Nacional


JoVE 52956

 Science Education: Essentials of Environmental Science

Dissolved Oxygen in Surface Water

JoVE Science Education

Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University

Dissolved oxygen (DO) measurements calculate the amount of gaseous oxygen dissolved in surface water, which is important to all oxygen-breathing life in river ecosystems, including fish species preferred for human consumption (e.g. bluegill and bass), as well as decomposer species critical to the recycling of biogeochemical materials in the system. The oxygen dissolved in lakes, rivers, and oceans is crucial for the organisms and creatures living in it. As the amount of dissolved oxygen drops below normal levels in water bodies, the water quality is harmed and creatures begin to die. In a process called eutrophication, a body of water can become hypoxic and will no longer be able to support living organisms, essentially becoming a “dead zone.” Eutrophication occurs when excess nutrients cause algae populations to grow rapidly in an algal bloom. The algal bloom forms dense mats at the surface of the water blocking out two essential inputs of oxygen for water: gas exchange from the atmosphere and photosynthesis in the water due to the lack of light below the mats. As dissolved oxygen levels decline below the surface, oxygen-breathing organisms die-off in large amounts, creati

 JoVE Bioengineering

Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton

1Department of Veterans Affairs (VA) Rehabilitation Research and Development National Center of Excellence for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, 2Department of Veterans Affairs (VA) Spinal Cord Injury Service, James J. Peters VA Medical Center


JoVE 54071

 JoVE Medicine

Normothermic Ex Vivo Kidney Perfusion for the Preservation of Kidney Grafts prior to Transplantation

1Multi Organ Transplant Program, Department of Surgery, Toronto General Hospital, 2Division of Nephrology, The Hospital for Sick Children, Toronto, 3Department of General, Visceral & Transplant Surgery, University Medical Center Mainz, 4Department of Abdominal, Vascular & Transplant Surgery, Merheim Medical Center Cologne, 5Laboratory Medicine & Pathobiology, Toronto General Hospital, 6Departments of Surgery (Urology) & Physiology, The Hospital for Sick Children, Toronto, 7Developmental & Stem Cell Biology, The Hospital for Sick Children, Toronto


JoVE 52909

 JoVE Medicine

Ex Situ Normothermic Machine Perfusion of Donor Livers

1Section of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, University of Groningen, University Medical Center Groningen, 2Surgical Research Laboratory, Department of Surgery, University of Groningen, University Medical Center Groningen, 3Center of Engineering in Medicine/Surgical Services, Massachusetts General Hospital, Harvard Medical School, and Shriners Burns Hospital, 4Division of Transplantation, Department of Surgery, Massachusetts General Hospital, Harvard Medical School


JoVE 52688

 JoVE Neuroscience

Non-restraining EEG Radiotelemetry: Epidural and Deep Intracerebral Stereotaxic EEG Electrode Placement

1Department of Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices (Bundesinstitut für Arzneimittel und Medizinprodukte, BfArM), 2Molecular and Cellular Cognition Lab, German Center for Neurodegenerative Diseases (Deutsches Zentrum für Neurodegenerative Erkrankungen, DZNE)


JoVE 54216

 JoVE Medicine

Non-invasive Imaging and Analysis of Cerebral Ischemia in Living Rats Using Positron Emission Tomography with 18F-FDG

1W. M. Keck Center for Transgene Research, University of Notre Dame, 2Department of Chemistry and Biochemistry, University of Notre Dame, 3Notre Dame Integrated Imaging Facility, University of Notre Dame, 4Department of Biological Sciences, University of Notre Dame, 5Harper Cancer Research Institute, University of Notre Dame


JoVE 51495

 JoVE Neuroscience

Detection of Microregional Hypoxia in Mouse Cerebral Cortex by Two-photon Imaging of Endogenous NADH Fluorescence

1Department of Microbiology and Immunology, University of Rochester Medical Center, 2Center for Neural Development and Disease, University of Rochester Medical Center, 3Deptartment of Neurology, Center for Neural Development and Disease, University of Rochester Medical Center


JoVE 3466

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