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Fatty Acids, Unsaturated: Fatty acids in which the carbon chain contains one or more double or triple carbon-carbon bonds.

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


 Environment

Glucose Uptake Measurement and Response to Insulin Stimulation in In Vitro Cultured Human Primary Myotubes

1CarMeN Laboratory, INSERM U1060, INRA 1397, University of Lyon, 2Department of digestive and bariatric surgery, Obesity Integrated Center, University Hospital of Edouard Herriot, Hospices Civils de Lyon, Lyon 1 University, 3Division of Endocrinology, Diabetes, Hypertension and Nutrition, Department of Clinical Medicine, Faculty of Medicine, University of Geneva

JoVE 55743


 Biology

An Overview of Alkenone Biomarker Analysis for Paleothermometry

JoVE 10219

Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst

Throughout this series of videos, natural samples were extracted and purified in search of organic compounds, called biomarkers, that can relate information on climates and environments of the past. One of the samples analyzed was sediment. Sediments accumulate over geologic time in basins, depressions in the Earth into which sediment flows through the action of fluid (water or air), movement, and gravity. Two main types of basins exist, marine (oceans and seas) and lacustrine (lakes). As one might guess, very different types of life live in these settings, driven in large part by the difference in salinity between them. Over the last few decades, organic geochemists discovered a toolbox of biomarker proxies, or compounds that can be used to describe climate or environment, some of which work in marine environments and some of which work in lacustrine. We turn our attention here to the marine realm and alkenone paleothermometry using the Uk'37 sea surface temperature proxy. The most well-established and widely applied open-ocean biomarker sea surface temperature (SST) proxy is Uk'37. Uk'37 = (C37:2) / (C37:2 + C37:


 Earth Science

Analyzing Beneficial Effects of Nutritional Supplements on Intestinal Epithelial Barrier Functions During Experimental Colitis

1Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute, 2Department of Physiology, Biophysics and Neurosciences, Center for Research and Advanced Studies of the National Polytechnic Institute, 3Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies of the National Polytechnic Institute

JoVE 55095


 Medicine

Open Source High Content Analysis Utilizing Automated Fluorescence Lifetime Imaging Microscopy

1Photonics Group, Department of Physics, Imperial College London, 2Institute for Chemical Biology, Department of Chemistry, Imperial College London, 3MRC Clinical Sciences Centre, Hammersmith Hospital, 4Chemical Biology Section, Department of Chemistry, Imperial College London, 5Retroscreen Virology Ltd, 6Pfizer Global Research and Development, Pfizer Limited, Sandwich, Kent, UK, 7Centre for Histopathology, Imperial College London

JoVE 55119


 Biology

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning

1NMR Surgical Laboratory, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, 2Shriners Burn Institute, 3Department of Radiology, Athinoula A. Martinos Center of Biomedical Imaging, Harvard Medical School, 4Molecular Surgery Laboratory, Department of Surgery, Massachusetts General Hospital, Harvard Medical School

JoVE 1710


 Neuroscience

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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


 Environment

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A Lipid Extraction and Analysis Method for Characterizing Soil Microbes in Experiments with Many Samples

1Department of Agronomy and Great Lakes Bioenergy Research Center, University of Wisconsin - Madison, 2Department of Soil Science, University of Wisconsin - Madison, 3Department of Soil, Water, and Climate, University of Minnesota, 4Faculty of Science and Engineering, Curtin University

JoVE 55310


 Environment

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Genetic Engineering of an Unconventional Yeast for Renewable Biofuel and Biochemical Production

1Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 2NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), Life Sciences Institute, National University of Singapore, 3Food Science and Chemical Engineering, Singapore Institute of Technology

JoVE 54371


 Genetics

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