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Access to safe drinking water is a global problem for nearly a billion people. For approximately 200 million people, many in Africa, high levels of naturally occurring fluoride in the water cause disfiguring and debilitating dental and skeletal disease. University of Oklahoma environmental scientist Laura Brunson is back from Ethiopia where, with support from the National Science Foundation, she’s developing fluoride filtering devices that use inexpensive materials readily available right there in the villages.
(Source: DCMP)
The hummingbird has a forked tongue that is lined with hair-like extensions. Its design is especially useful for drinking nectar from flowers.
Shows the crucial part water plays in the body's functioning and the system for keeping it in balance. Drinking, sweating, and breathing are covered. The urinary tract is analyzed in detail, with particular attention to the functioning of the kidneys.
Part of the "Inside the Living Cell" series. Describes the properties of the plasma membrane, how it governs the kinds of molecules that go in and out of cells, and how cells feed by engulfing (phagocytosis) and drinking in (pinocytosis) fluids. Also reviews membrane structure, osmosis, transport proteins, active transport, cell eating, cell drinking, and receptor proteins.
The world’s population is projected to increase by 2-3 billion over the next 40 years. Already, more than three quarters of a billion people lack access to clean drinking water and 85 percent live in the driest areas of the planet. Those statistics are inspiring chemist Ben Hsiao and his team at Stony Brook University. With support from the National Science Foundation (NSF), the team is hard at work designing nanometer-scale water filters that could soon make clean drinking water available and affordable for even the poorest of the poor. Part of the National Science Foundation Series “Science Nation.”
It was an email from a colleague that tipped off environmental engineer Detlef Knappe of possible 1,4-dioxane contamination in the Cape Fear River Basin, North Carolina’s largest watershed and a source of drinking water for communities across the state. The Environmental Protection Agency has classified 1,4-dioxane as a probable human carcinogen. With support from a National Science Foundation grant, Knappe and his team at North Carolina State University have begun to identify 1,4-dioxane sources and how 1,4-dioxane impacts drinking water quality. Knappe is also working with managers at water treatment plants and state policymakers in North Carolina to improve testing and treatment standards for 1,4-dioxane. Part of the National Science Foundation Series “Science Nation.”
Students learn how chemicals from pharmaceuticals and personal care products are entering the waterways upstream from fish, crabs, and drinking water intakes. There is evidence that some members of these species are becoming intersex due to estrogenic compounds being disposed of improperly. Please note: Preview of this title is highly encouraged due to sensitive subject matter.
Find out the scoop on streamgages. What are they? How do they impact everyday life? Whether drinking from the tap, using electricity, or canoeing down a river, all of these activities benefit from information gathered by USGS streamgages.
What do chimpanzees, Kodiak bears, and elephants eat? How do they get their food? Three children explore the similarities and differences between themselves and animals and the foods they eat. Shows closeups of animals eating and drinking, but focuses on chimps, bears, and elephants. Covers other characteristics of these three animals in addition to what they eat.
Shows the city of Chongqing on the Yangzte River to be one of the most industrialized and polluted areas in China. Drinking water for the local population is precarious at best. Some 360 million Chinese find themselves in similar circumstances. For those seeking political changes in the world's biggest dictatorship, these protests represent a small ray of light and hope.
Enzymes are proteins which are manufactured by the human body during the process of protein synthesis. They are catalysts that drive every chemical reaction taking place in the human body, and they enable the human body to be built from proteins, carbohydrates, and fats. Enzymes are highly specific in their activity and form an enzyme-substrate complex speeding up processes as they lower the activation energy during a given reaction period. Through genetic engineering and by isolating specific enzymes, it has become possible to harness the power of enzymes.
The parakeet starts without a script because Boronitas, the screenwriter, is sick. Amanda decides to improvise and presents the guest: the rabbit, who failed the school year because the llama failed to turn in an assignment. When the llama arrives with the script, they tell her it's already late and complain about her lack of responsibility. She explains that she took too many jobs at a time and failed to comply. Then Eva and Maite say they don't understand why humans say yes to everything, even bad things like smoking, drinking, and others. the celebrity guest, Maradona former soccer player, who said no to food. At the end the parakeet explains the importance of learning to say no.
Monitoring water quality is vital to make sure dangerous bacteria doesn't creep into drinking water or overcome sewage treatment plants. With support from the National Science Foundation, engineers at the Monterey Bay Aquarium Research Institute have developed the Environment Sample Processor (ESP), a "DNA lab in a can." The size of a trash can, it can be placed in the open ocean or at water treatment facilities to identify potentially harmful bacteria, algae, larvae, and other microscopic organisms in the surrounding waters. It can monitor and send results back to the lab in real time to monitor water quality. Now, the engineers are modifying the ESP so it can go mobile, working from an autonomous underwater vehicle (AUV).
In this episode, citizens and scientists partner to gather data on many environmental concerns around the world. A group of citizen scientists track air and water pollution at fracking sites in Wyoming and 5 other states. They use simple but science-based techniques developed by the “Bucket Brigade.” Volunteers from Trout Unlimited monitor water quality regularly, generating baseline data that will prove invaluable in the event of future pollution events. Community members connected with professional researchers explore Flint’s drinking water crisis and help other cities test their water quality. In China, citizens use government data and a unique mobile app to report environmental crimes. Part of "The Crowd and the Cloud" series.
