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"Synthetic biology" is an umbrella term that refers to a new set of powerful techniques for manipulating the fundamental molecular structures of life, including genes, genomes, cells and proteins. Techniques being developed under the "synthetic biology" rubric include the modification of existing bacteria to produce useful substances or perform new functions, the creation of novel artificial organisms from "scratch," and — less noted to date — the modification of animal and human genes.
A team of Stanford engineers has made a simple computer inside a living cell, where it could detect disease, warn of toxic threats and, where danger lurked, even self-destruct cells gone rogue. The startling achievement, unveiled in Friday's issue of the journal Science, takes us to a new frontier -- where nature's instruction manual is being programmed to deliver information long-concealed within our bodies. "We're going to be able to put computers inside any living cell you want," said lead researcher Drew Endy of Stanford's School of Engineering.
Living cells communicate and cooperate to produce the emergent properties of tissues.
Organisms must process information encoded via developmental and environmental signals to survive and reproduce. Researchers have also engineered synthetic genetic logic to realize simpler, independent control of biological processes.
These microscope pictures are taken from the book ‘ Microcosmos’, created by Brandon Brill . This book includes many scanning electron microscope (SEM) images of insects, human body parts and household items. These are the most amazing images of what is too small to see with the naked eye.
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Poor nutrition is a leading lifestyle factor related to the development of several noncommunicable diseases. One strategy for eliminating health disparities and promoting long-term health is to get children to eat and like healthful foods (eg, fruits and vegetables) from an early age (1-4) . Health organizations worldwide recommend 5 to 13 servings of fruits and vegetables per day, depending on one's caloric requirement (5,6) . Despite such recommendations, adults are not eating enough fruits and vegetables (6) and neither are children (7,8) . The 2004 Feeding Infant and Toddlers Study, designed to update knowledge on the feeding patterns of American children, alarmingly revealed that toddlers ate more fruits than vegetables and 1 in 4 did not even consume 1 vegetable on a given day (7,8) . Instead, they were more likely to be eating fatty foods and sweet-tasting snacks and beverages and less likely to be eating vegetables.
Médecine et autre
Behaviours Extend to Others