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AMSEcast

AMSEcast

De: American Museum of Science and Energy
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Produced from the American Museum of Science and Energy, AMSEcast invites guests from the world of science, literature, and technology to share unique perspectives from the realm of the highly trained and curiously minded.All materials within AMSEcast are the soul property of or legally licensed property of the American Museum of Science and Energy Ciencia
Episodios
  • Exploring the Human Microbiome with Dr. Bob Hettich

    Exploring the Human Microbiome with Dr. Bob Hettich
    Oct 1 2025
    Dr. Robert Hettich is a pioneer in bioanalytical mass spectrometry. In this episode of AMSEcast, he describes how microbiomes form, vary across the body, and influence digestion, immunity, and overall health. Dr. Hettich also explains metaproteomics, the study of microbial proteins, to reveal how microbes function beyond their genes as well as their applications from human health to environmental cleanup and bioenergy. Inspired by his daughter’s experience with Crohn’s, Robert Hettich is especially focused on microbiomes’ links to inflammatory and neurological diseases, including Parkinson’s and Alzheimer’s. Guest Bio Dr. Robert Hettich is a corporate fellow at Oak Ridge National Laboratory and leader of its Bioanalytical Mass Spectrometry Group in the Biosciences Division. He also serves as joint faculty in the Microbiology Department at the University of Tennessee. Earning his BS from the South Dakota School of Mines and Technology and a PhD in Analytical Chemistry from Purdue University, Dr. Hettich joined ORNL in 1986 and has since become a pioneer in microbiome and mass spectrometry research. Widely published and honored with multiple awards, he is recognized for advancing our understanding of complex microbial systems and their impact on health. Show Highlights
    • (1:45) What is a microbe?
    • (2:57) What is a microbiome?
    • (3:31) When microbiomes begin to develop in the body
    • (5:42) How microbiomes differ throughout the body
    • (7:51) The role of probiotics and prebiotics in microbiomes
    • (10:03) The effect of anti-microbial medication on microbiomes
    • (12:05) What metaproteomics is and what tools are required for it
    • (16:03) The role of microbiomes in development or materials, fuel, and other resources
    • (18:42) What Dr. Robert Hettich is most concerned about for his research
    Links Referenced
    • Dr. Robert Hettich’s email address: hettichrl@ornl.gov
    Más Menos
    23 m
  • One Woman's Personal Journey Through Sexism in Science author on AMSE Science Report

    One Woman's Personal Journey Through Sexism in Science author on AMSE Science Report
    Sep 20 2025

    Dr. Colwell shares her insight on the progression of women in science through the years. Framed by her own experiences we learn about her incredible work.
    Más Menos
    4 m
  • The History of the American Railroad with Albert Churella

    The History of the American Railroad with Albert Churella
    Sep 17 2025
    Railroads have shaped America’s growth, technology, and daily life for nearly two centuries. In this episode of AMSEcast, Alan talks with Dr. Albert Churella of Kennesaw State University about how innovations such as the automatic knuckle coupler, Westinghouse’s air brake, and the move from steam to diesel transformed safety and efficiency. Dr. Churella explains how signaling, centralized traffic control, and GPS-based Positive Train Control modernized operations. While U.S. passenger service lags Europe, its freight rail system leads the world in ton-miles, fuel efficiency, and low emissions. Albert also previews his forthcoming book on Conrail, reflecting on the railroad industry’s resilience, its economic impact, and its enduring relevance today. About Dr. Albert Churella Dr. Albert Churella is a leading scholar of transportation history and policy with a particular focus on railroads. He earned both his MA and PhD from The Ohio State University and now serves as a professor at Kennesaw State University. Albert’s research explores how railroads shaped American economic growth, technology, and public policy, linking the past to today’s transportation challenges. His work combines rigorous scholarship with a clear, engaging style that reaches beyond academic audiences. In addition to his extensive publications, Albert is widely regarded as an expert who makes the complex history of railroads accessible and relevant to modern readers. Show Highlights
    • (1:40) When the first train operated in the United States
    • (14:13) America’s addition of the air brake and the automatic coupler
    • (28:12) When track signals came into use
    • (40:05) Are trains high-tech now?
    • (45:04) The transition from steam to diesel and where the advancement was developed
    • (58:29) Why railways are still important in the US
    • (1:02:52) What Dr. Albert Churella is working on now
    Links Referenced
    • The Pennsylvania Railroad three-volume series:
      • https://www.amazon.com/Pennsylvania-Railroad-Building-1846-1917-American/dp/081224348X
      • https://www.amazon.com/Pennsylvania-Railroad-1917-1933-Railroads-Present/dp/0253066352
      • https://www.amazon.com/Pennsylvania-Railroad-Decline-1933-1968-Railroads/dp/0253069475
    Más Menos
    1 h y 9 m
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