Science (Audio)

Dr. Elisseeff is a leading expert in the field of tissue engineering. She directs the Translational Tissue Engineering Center where she and her team of scientists study stem cells, develop new biomaterials, and design new technologies for regenerative medicine. The goal of her lab is to engineer technologies to repair lost tissues. Specifically, Elisseeff's lab examines hydrogels as a scaffold for tissue engineering. Hydrogels are ideal due to their high water content for nutrient and waste transport, and their ability to encapsulate cells and to implant in a minimally invasive manner. The lab is currently focused on developing synthetic-biological hydrogels with highly controlled physical properties and biological function. The discovery of human embryonic stem cells has created the possibility to regenerate any tissue from a single, totipotent cell population. Series: "Stem Cell Channel" [Health and Medicine] [Science] [Education] [Show ID: 37017]

Just another YouTube video documenting the crazy antics of squirrels hell-bent on reaching peanuts? No, these videos are part of a study to understand the split-second decisions squirrels make routinely as they race through the tree canopy, jumping from branch to branch, using skills honed to elude deadly predators. How do they decide whether or not to take a leap? How do they assess their biomechanical abilities to know whether they can stick the landing? Understanding how squirrels learn the limits of their agility could lead to robots with better control to nimbly move through varied landscapes, such as the rubble of a collapsed building in search of survivors. It could also lead to a better understanding of movement problems that come with age. Series: "UC Berkeley News" [Health and Medicine] [Science] [Show ID: 37367]

The ocean provides a bounty of essential life-supporting services. Yet, a changing climate and increasing human uses are altering marine ecosystems and their ability to continue to provide this wealth of essential services. Off the coast of California, we are lucky to have one of the worlds longest-running marine observation programs, the California Cooperative Oceanic Fisheries Investigations (CalCOFI), which has continuously and comprehensively sampled the marine environment off the California coast since 1949 to monitor the indicators and impacts of El Nino and climate change and to support effective marine management. Join marine ecologist and California Sea Grant extension specialist Erin Satterthwaite as she tells the story of CalCOFI through a series of case studies documenting how CalCOFI has been used to understand and address human and natural impacts on marine life along the California coast. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 37033]

Chuck Murry, MD, PhD shares recent research on using cardiomyocytes to model COVID-19 heart disease. He also discusses current efforts to regenerate the heart and reduce arrhythmias. Series: "Stem Cell Channel" [Health and Medicine] [Science] [Show ID: 37016]

Discussion session about The Evolution of Human Physical Activity. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37188]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? Herman Pontzer explores the evolution of metabolism, Grazyna Jasienska discusses different effects of activity on women's reproductive health and Ellen Breen explores an evolutionary pathway for high endurance activity. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37187]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? Daniel Lieberman explores how running evolved and David Raichlen explains the effects of physical activity on the brain. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37185]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? Tatum Simonson explains adaptations to altitude and diving, Jandy Hanna explores climbing in human evolution and David Carrier proposes anatomical adaptations for aggression. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37186]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? Daniel Lieberman and Yana Kamberov explore how running and sweating evolved and what it means for Homo sapiens. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37184]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? David Carrier proposes anatomical adaptations for aggression.

A growing body of evidence suggests that the evolutionary roots of much of the aggression, intolerance, and violence that plagues modern societies ultimately lies in the selection that shaped our mating system. Acknowledging and understanding the legacy of male interpersonal and group aggression can help guide policy directed at reducing violence in the future. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 36947]