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DTSTART;TZID=America/Los_Angeles:20250424T150000
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DTSTAMP:20260424T045558
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SUMMARY:Tracking Ice Sheet Retreat Using Cosmogenic Nuclides: A Virtual Seminar
DESCRIPTION:Professor Claire Todd\, California State University\, San Bernardino\nSponsored by the Southern California Section ACS\nApril 24\, 3-4 pm\, Online\, Free\, Registration required\n\nAbstract \nIce sheet retreat reveals underlying bedrock and strands glacially transported rock\, exposing these geologic materials to the cosmic ray flux. Geologists use the resulting cosmogenic nuclides in minerals to determine the timing and rate of ice sheet retreat. Studies across Antarctica reveal a range of ice sheet thinning rates over millennia and provide a valuable comparison to measurements of modern ice sheet change. This presentation will provide an overview of this geochronological technique\, and share field experiences and results from surface exposure age studies in East and West Antarctica. \nBiography \nDr. Claire Todd is Professor and Chair of the Department of Geological Sciences at California State University San Bernardino where she works with students to study cryospheric change in Antarctica and the Pacific Northwest. She has completed six deep field seasons in Antarctica.
URL:https://www.siliconvalleyacs.org/event/tracking-ice-sheet-retreat-using-cosmogenic-nuclides-a-virtual-seminar/
LOCATION:Virtual
CATEGORIES:Webinar
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DTSTART;TZID=America/Los_Angeles:20250429T150000
DTEND;TZID=America/Los_Angeles:20250429T160000
DTSTAMP:20260424T045558
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LAST-MODIFIED:20250412T160249Z
UID:21750-1745938800-1745942400@www.siliconvalleyacs.org
SUMMARY:Illuminating the Biochemical Activity Architecture of the Cell: A Virtual Seminar
DESCRIPTION:Jin Zhang\, Ph.D.\, UC San Diego\nSponsored by Southern California Section ACS\nApril 29 from 3-4pm\, Online\, Free\, Registration required\nThis presentation is made possible by the LSAC IP Grant.\n\nAbstract \nThe complexity and specificity of cellular processes require spatial microcompartmentation and dynamic modulation of the underlying biochemical activities\, such as dynamic phosphorylation and dephosphorylation catalyzed by specific protein kinases and phosphatases\, respectively. We hypothesize that cellular biochemical activities are spatially organized into an “activity architecture” and reorganization and restructuring of this activity architecture lead to disease. In this talk\, I will introduce a series of genetically encoded or chemigenetic fluorescent biosensors that we have developed to monitor biochemical events in living cells\, and then present a couple of studies where we combine quantitative fluorescence imaging with targeted perturbations as well as biochemical and functional assays to probe the spatiotemporal regulation of cell signaling. \nBiography \nDr. Jin Zhang received her Bachelor’s degree from Tsinghua University and her PhD in Chemistry from University of Chicago in 2000.  After completing her postdoctoral work in the laboratory of the late Roger Tsien at UC San Diego\, she joined the faculty of Johns Hopkins University School of Medicine in 2003. She was promoted to Professor of Pharmacology in 2013. In 2015 she moved back to UC San Diego and is currently Professor and vice Chair in Department of Pharmacology. Research in her lab focuses on developing enabling technologies to probe the active molecules in their native environment and characterizing how these active molecules change in diseases including cancer. Dr Zhang is a recipient of the Biophysical Society Margaret Oakley Dayhoff Award (2009)\, NIH Director’s Pioneer Award (2009)\, John J. Abel Award in Pharmacology (2012)\, Pfizer Award in Enzyme Chemistry (2012)\, NCI Outstanding Investigator Award (2015 and 2022)\, Robert R. Ruffolo Career Achievement Award in Pharmacology (2022)\, Protein Society Christian B. Anfinsen Award (2022) and Biophysical Society Carolyn Cohen Innovation Award from (2023). She was elected as a Fellow of the American Association for the Advancement of Science in 2014\, a Fellow of the American Institute for Medical and Biological Engineering in 2019 and a Fellow of American Society for Pharmacology and Experimental Therapeutics in 2021. Dr. Zhang also received UC San Diego Chancellor’s Award for Excellence in Postdoctoral Scholar Mentoring in 2019 and UC San Diego Jacobs School of Engineering Outstanding Graduate Student Mentoring Award in 2022. She currently serves on the Scientific Advisory Board for Max Planck Institute for Medical Research\, on the External Advisory Board for Biophysics of the Johns Hopkins University and on the Basic Sciences External Advisory Council (BSEAC) of Vanderbilt University.
URL:https://www.siliconvalleyacs.org/event/illuminating-the-biochemical-activity-architecture-of-the-cell-a-virtual-seminar/
LOCATION:Virtual
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