Science (Audio)

Tage S. Rai is a psychologist who studies ethics, culture, and violence. Drawing on both qualitative and experimental methods, he examines the social-relational nature of morality, its origins, and its consequences. In recent work, he has found that when perpetrators are motivated by moral sentiments, they may humanize rather than dehumanize their victims, experience greater rather than lesser self-control when harming them, and respond irrationally to material costs and benefits. Moving forward, he is especially interested in developing psychological approaches to the study of organizational and institutional violence. Series: "Exploring Ethics" [Health and Medicine] [Humanities] [Science] [Show ID: 38800]

Large language models (LLMs) have now achieved many of the longstanding goals of the quest for generalist AI. While LLMs are still very imperfect (though rapidly improving) in areas like factual grounding, planning, reasoning, safety, memory, and consistency, they do understand concepts, are capable of insight and originality, can problem-solve, and exhibit many faculties we have historically defended vigorously as exceptionally human, such as humor, creativity, and theory of mind. At this point, human responses to the emergence of AI seem to be telling us more about our own psychology, hopes and fears, than about AI itself. However, taking these new AI capacities seriously, and noticing that they all emerge purely from sequence modeling, should cause us to reassess what our own cerebral cortex is doing, and whether we are learning what intelligence, machine or biological, actually is. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38679]

The cell phone revolutionized how we communicate with each other, but its origins are extremely different from the device you use to talk, text and even surf the internet with on a daily basis. Its roots could be traced back to the early 1970s when the head of Motorola’s communications systems division, Martin Cooper was tasked with developing a device that would make the up and coming car phone obsolete technology. On April 3, 1973, Cooper made the very first handheld cell phone call while standing on Sixth Avenue outside the New York City Hilton in midtown Manhattan to engineer Joel Engel, head of AT&T’s rival project. In a conversation with Al Pisano, Dean of UC San Diego’s Jacobs School of Engineering, Cooper reflects on the past fifty years including what it took to develop the world’s first cellular telephone, the impact it’s had on the world and the future of smartphone technology. Series: "Computer Science Channel" [Science] [Show ID: 38819]

Evolution always presented life forms with new challenges -- due to changes in weather, terrain, competition between different organisms, and other reasons. To increase the chance of survival, instead of solely optimizing current performance, it is in an agent's interest to maximize its ability to adapt to changes. Possibly this old evolutionary trait manifests itself in modern humans in their ability to adapt to new tasks and challenges quickly. Even if we consider a lifetime of a human, the ability to adapt is critical. An open question is what enables humans to adapt, a trait that modern AI systems lack. Frivolous play prepares infants for future life by laying down the foundation of a high-level experimentation framework to quickly understand how things work in new environments for constructing goal-directed plans. Pulkit Agrawal discusses how the idea of experimentation can be leveraged to construct robots that improve with experience and solve novel problems presented to them. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38678]

Have questions about publishing in academic journals? Sheila Chari, Ph.D., editor in chief of Cell Stem Cell, explains the process from pre-submission through publication. Series: "Stem Cell Channel" [Health and Medicine] [Science] [Show ID: 38722]

Feedback interconnections are widespread in the brain; yet clear explanations for most of them are currently lacking. Carmen Amo Alonso and John Doyle explore current experimental evidence on the relationship between the auditory and motor parts of the brain during speech perception and production. These models provide a plausible explanation for how the structure of language, as described in the Parallel Architecture, is implemented in the brain. Together, they provide a plausible account for how the Parallel Architecture of language originates as a result of functional constrains in the sensorimotor system. They compare the brain’s implementation of the language capacity with other cognitive capacities, such as vision or motor planning and control, which also have massive internal feedbacks that our new theory explains for the first time. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38682]

How do visions and norms of scientific progress inform, encourage or constrain democratic governance of science? How do questions of warrant, purpose, and benefit get asked and answered? Andy Murray, Ph.D., sits down with Carrie Wolinetz, Ph.D., National Institutes of Health (NIH), Maria Millan, M.D, California Institute for Regenerative Medicine (CIRM, Derek Thompson, The Atlantic, and Sheila Jasanoff, J.D., Ph.D., Harvard University, to explore these questions and more. Series: "Stem Cell Channel" [Science] [Show ID: 38731]

Just a hundred miles to the east of San Diego, one of the largest inland lakes in the West is drying up as a result combined human activity and climate change. The exposed lake bed is rapidly turning into a source of dust, worsening the frequent dust storms that impact the people who live in the surrounding areas. Learn about the intersection of architecture and science in this stark but magnificent landscape in a conversation with Climate Scientist Amato Evan and Architect Gillian Shaffer Lutsko. Discover how collaborations with local activists, policy groups, scientists and indigenous communities inspired an architectural project that envisions how we can unite conversations around redevelopment, the climate crisis, public health and community-led design. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Public Affairs] [Science] [Show ID: 38689]

How do we set practical policies that allow scientific discovery to thrive while keeping an eye to risks and benefits for all? Carrie Wolinetz, Ph.D.,

National Institutes of Health (NIH), looks at current and past policy and shares her insights on the democratic governance of science. Series: "Stem Cell Channel" [Science] [Show ID: 38745]

Data science is relevant now because of the large amounts being generated by smart phones, tablets and computers. With all the information out there, who has access to it? UC San Diego professor Brad Voytek discusses how data scientists are using the huge amounts of structured and unstructured data available to them and how that research is changing the world around us. Voytek also dives into how data is being used to bridge the gap in neuroscience and helping understand how the brain works. Series: "Data Science Channel" [Science] [Show ID: 37837]