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Tensile Strength: The maximum stress a material subjected to a stretching load can withstand without tearing. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p2001)

Effects of Allogeneic Platelet-Rich Plasma (PRP) on the Healing Process of Sectioned Achilles Tendons of Rats: A Methodological Description

1Experimental Surgery, GIGA-R & Credec, University of Liège, 2Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, 3Department Argenco, University of Liège, 4Department of Clinical Biology, University Hospital of Liège, University of Liège, 5Physical Medicine and Sport Traumatology Department, FIFA Medical Center of Excellence, University Hospital of Liège, University of Liège

JoVE 55759


 Medicine

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

1Department of Chemical Engineering, Rowan University, 2Department of Biological Sciences, Rowan University, 3Department of Biomedical Engineering, Drexel University

JoVE 53704


 Bioengineering

Adapted Resistance Training Improves Strength in Eight Weeks in Individuals with Multiple Sclerosis

1Motion Analysis Laboratory, Kennedy Krieger Institute, 2Physical Medicine & Rehabilitation, Johns Hopkins University School of Medicine, 3Johns Hopkins University School of Medicine, 4Department of Neurology, Johns Hopkins University School of Medicine

JoVE 53449


 Medicine

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

1Reutlingen Research Institute, Reutlingen University, 2School of Applied Chemistry, Reutlingen University, 3Fraunhofer-Institute for Interfacial Engineering and Biotechnology IGB, 4Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart

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JoVE 58590


 JoVE In-Press

Two Methods for Decellularization of Plant Tissues for Tissue Engineering Applications

1Department of Surgery, University of Wisconsin-Madison, 2Department of Orthopedics and Rehabilitation, University of Wisconsin School of Medicine and Public Health, 3Department of Biomedical Engineering, University of Wisconsin College of Engineering, 4Department of Biomedical Engineering, Worcester Polytechnic Institute

JoVE 57586


 Bioengineering

Right Ventricular Systolic Pressure Measurements in Combination with Harvest of Lung and Immune Tissue Samples in Mice

1Department of Environmental Medicine, New York University School of Medicine, Tuxedo, 2Division of Allergy, Pulmonary, & Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, 3Division of Pulmonary Medicine, New York University School of Medicine

JoVE 50023


 Immunology and Infection

A Mouse Fetal Skin Model of Scarless Wound Repair

1Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 2Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, 3Department of Surgery, John A. Burns School of Medicine, University of Hawai'i, 4University of Central Florida College of Medicine

JoVE 52297


 Medicine

Surgical Technique for the Implantation of Tissue Engineered Vascular Grafts and Subsequent In Vivo Monitoring

1Department of Physiology & Bio-Physics, State University of New York Buffalo School of Medicine, 2Department of Pediatrics, State University of New York Buffalo School of Medicine, 3Department of Chemical and Biological Engineering, State University of New York Buffalo School of Engineering

JoVE 52354


 Bioengineering

Purification of a Total Lipid Extract with Column Chromatography

JoVE 10159

Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst

The product of an organic solvent extraction, a total lipid extract (TLE), is often a complex mixture of hundreds, if not thousands, of different compounds. The researcher is often only interested in a handful of compounds. The compounds of interest may belong to one of several classes of compounds, such as alkanes, ketones, alcohols, or acids (Figure 1), and it may be useful to remove the compound classes to which it does not belong in order to get a clearer view of the compounds you are interested in. For example, a TLE may contain 1,000 compounds, but the Uk'37 sea surface temperature proxy is based on only two compounds (alkenones) and the TEX86 sea surface temperature proxy is based on only four (glycerol dialkyl glycerol tetraethers). It would behoove the researcher to remove as many of the compounds they are not interested in. This makes the instrumental analysis of the compounds of interest (alkenones or GDGTs) less likely to be complicated by other extraneous compounds. In other cases, an upstream purification technique may have produced compounds you wish to now remove from the sample, such as the production of carboxylic acids during saponification in our


 Earth Science

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