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Evolution, Molecular: The process of cumulative change at the level of DNA; RNA; and Proteins, over successive generations.

Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol

1Bioenergy Research Unit, National Center for Agricultural Utilization Research, 2Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, 3Chemical Engineering and Material Science, Great Lakes Bioenergy Center, Michigan State University

JoVE 54227


 Bioengineering

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


 Engineering

Comprehensive Workflow for the Genome-wide Identification and Expression Meta-analysis of the ATL E3 Ubiquitin Ligase Gene Family in Grapevine

1Dipartimento di Biotecnologie, Università degli Studi di Verona, 2Ecology and Evolution, Research School of Biology, The Australian National University, 3Dipartimento di Agraria, SACEG, Università degli Studi di Sassari

Video Coming Soon

JoVE 56626


 JoVE In-Press

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

1Jülich Centre for Neutron Science Outstation at MLZ, Forschungszentrum Jülich GmbH, 2Department of Chemistry, Louisiana State University, 3Jülich Centre for Neutron Science JCNS-1 & Institute of Complex Systems ICS-1, Forschungszentrum Jülich GmbH, 4Central Institute of Engineering, Electronics and Analytics — Electronic Systems (ZEA-2), Forschungszentrum Jülich GmbH, 5Central Institute of Engineering, Electronics and Analytics — Engineering and Technology (ZEA-1), Forschungszentrum Jülich GmbH

JoVE 54639


 Bioengineering

Next Generation Sequencing for the Detection of Actionable Mutations in Solid and Liquid Tumors

1Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, 2Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, 3Abramson Cancer Center

JoVE 52758


 Cancer Research

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

1Bio-technology Research Center, China Three Gorges University, 2The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, 3Department of Plant Biology, University of Illinois at Urbana-Champaign, 4College of Resources & Environmental Sciences, Nanjing Agricultural University

Video Coming Soon

JoVE 56684


 JoVE In-Press

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)

1Department of Neuroscience and Cell Biology, Rutgers Robert Wood Johnson Medical School, 2Center for Advanced Biotechnology and Medicine, Department of Neuroscience and Cell Biology, Rutgers Robert Wood Johnson Medical School, 3The Child Health Institute of NJ, Department of Obstetrics, Gynecology, and Reproductive Services, Rutgers Robert Wood Johnson Medical School, 4The Child Health Institute of NJ, Department of Neuroscience and Cell Biology, Rutgers Robert Wood Johnson Medical School, 5Department of Genetics, Rutgers University

Video Coming Soon

JoVE 56628


 JoVE In-Press

Determining Rate Laws and the Order of Reaction

JoVE 10193

Source: Laboratory of Dr. Neal Abrams — SUNY College of Environmental Science and Forestry

All chemical reactions have a specific rate defining the progress of reactants going to products. This rate can be influenced by temperature, concentration, and the physical properties of the reactants. The rate also includes the intermediates and transition states that are formed but are neither the reactant nor the product. The rate law defines the role of each reactant in a reaction and can be used to mathematically model the time required for a reaction to proceed. The general form of a rate equation is shown below:     where A and B are concentrations of different molecular species, m and n are reaction orders, and k is the rate constant. The rate of nearly every reaction changes over time as reactants are depleted, making effective collisions less likely to occur. The rate constant, however, is fixed for any single reaction at a given temperature. The reaction order illustrates the number of molecular species involved in a reaction. It is very important to know the rate law, including rate constant and reaction order, which can only be deter


 General Chemistry

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