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Science (Audio)

Science (Audio)

UCTV

Science affects us all. Explore a wide variety of topics from technology in our everyday lives to complex global issues. Visit uctv.tv/science

1231 - From Ground To Space: Studying Wicking Aboard The International Space Station
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  • 1231 - From Ground To Space: Studying Wicking Aboard The International Space Station

    Our respiratory system provides oxygen to and removes carbon dioxide from the body. To function properly, the lungs need to fill up with fresh air upon inhalation. Unfortunately, for a variety of medical reasons, the amount of air that reaches the lungs can be insufficient, causing respiratory distress. Healthcare providers often administer liquid drugs in the trachea to ensure prompt relief. In this program, Emilie Dressaire, professor of mechanical engineering at UC Santa Barbara, discusses how the liquid drugs make their way down to the lungs. To answer open questions on drug delivery, her team has built an experimental system that is currently in Space. She presents the journey from UCSB to the International Space Station and shares the first results. Series: "GRIT Talks" [Science] [Show ID: 40087]

    Sun, 27 Oct 2024 - 31min
  • 1230 - CARTA: Energy in the Balance with Barnabas Calder

    Every building – from the Parthenon to the Great Mosque of Damascus to a typical Georgian house – was influenced by the energy available to its architects. This talk offers a historical perspective on a topic of great relevance today, the linkage of architecture and energy. It provides a useful complement to the non-urban perspective on ecology offered by the talk on “The indigenous architecture of Australia.” Architecture has been shaped in every era by our access to energy, from fire to farming to fossil fuels. The talk will discuss a range of buildings of the past fifteen thousand years from Uruk, via Ancient Rome and Victorian Liverpool, to China's booming megacities. If we are to avoid catastrophic climate change one important ingredients is to design beautiful but also intelligent buildings, and to retrofit - not demolish - those that remain. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 40166]

    Fri, 25 Oct 2024 - 20min
  • 1229 - Al for Security Security for Al

    How secure are computers and how does artificial intelligence impact security? In this program, Christopher Kruegel, professor of computer science at UC Santa Barbara, explores two key questions related to security and artificial intelligence. First, how AI can help to improve security. For decades, security solutions have leveraged traditional machine learning models. Not surprisingly, recent advances in AI have opened up exciting new opportunities. Second, the security of AI systems themselves. Like any other software application, they can be exploited. Given their often-critical role, it is imperative to secure AI against attacks such as training data poisoning and adversarial inputs. Series: "GRIT Talks" [Science] [Show ID: 40086]

    Mon, 21 Oct 2024 - 29min
  • 1228 - CARTA: From Cave to Architecture: Settling Down in Southwest Asia with Trevor Watkins

    Human "place-making" began over a million years ago when early humans made the hearth the center of social life. By 450,000 years ago, they were using caves in southwest Asia and sometimes buried their dead beneath the floor, linking memory-making with place-making. Hunter-gatherers started settling seasonally around 24,000 years ago, with permanent stone settlements by 13,000 BCE. Large, co-resident communities became common in the Holocene. The Neolithic (9600-6000 BCE) saw major social, economic, and cultural innovations, including architecture, monuments, and symbolic systems. Neolithic societies, with their complex economic relations, proto-urban patterns, and ritualistic architecture, were the first "imagined communities," deeply tied to memory and social symbolism. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 40163]

    Sun, 20 Oct 2024 - 21min
  • 1227 - The Link Between Proteins Alzheimer’s and Parkinson’s Diseases

    Proteins are large biomolecules that play critical roles in a host of cellular processes, from cell signaling to regulating the immune system. However, these life-giving proteins can form toxic aggregate species that have been linked to several neurodegenerative diseases, including Alzheimer’s Disease and Parkinson’s Disease. In this program, UC Santa Barbara professor Joan-Emma Shea discusses the tau protein as a model system to study neurodegeneration. Shea says this protein plays a functional role in stabilizing microtubules in brain cells, but it can also self-assemble to form amyloid fibrils (large “clumps” of Tau proteins). There are several neurodegenerative diseases linked to tau assembly, including Alzheimer’s Disease, Pick’s Disease, and chronic traumatic encephalopathy, and they are collectively known as tauopathies. Shea discusses new insights into tauopathies and targets for therapeutics. Series: "GRIT Talks" [Science] [Show ID: 40083]

    Fri, 18 Oct 2024 - 27min
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