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In this lecture, Hazen will examine how Earth’s near-surface environment has evolved as a consequence of selective physical, chemical and biological processes — an evolution that is preserved in the mineralogical record.
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Kathryn Zurek will review evidence for the presence of dark matter in our universe and the need for a new theory to describe the dark matter sector.
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One of the characteristic features of life — specificity — emerges in metabolism, information transfer from DNA to protein, embryology, immunology and virtually every other process. Its explanation on the molecular level is thermodynamic stability and structural complementarity. Yet one disturbing issue persists: the protein and nucleic acid sequences coding for that specificity are generally too small to distinguish actual partners from competitors. Similarly, protein degradation conveys specificity through very short sequences. The process is so kinetically complex that bulk kinetic experiments and a few molecular structures are insufficient to explain how specificity is achieved. Using single molecule kinetic measurements, we have deconvolved much of that specificity.
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In this lecture, Eiichiro Komatsu will describe the ‘cosmic microwave background,’ the light remnants of the Big Bang.
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Due to the winter storm, the Wednesday, January 28, 2015 5:00 p.m. Autism: Emerging Concepts lecture "One Brain, Many Genomes: Somatic Mutation and Genomic Variability in the Human Cerebral Cortex” by Christopher A. Walsh is canceled and will be rescheduled.
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