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Tag: "soup" at biology news

MIT's ocean model captures diversity of underwater forests

...acteristics of the oceans, but adds to the virtual soup about 100 random types of phytoplankton. The model randomly generates the single-celled plants, which differ primarily in their size, and in their sensitivity to light, temperature and nutrient availability, then allows the ocean to self-select those...

Like salty food? Chances are you had low blood sodium when you were born

...ested for their preferred concentration of salt in soup and sugar in tea, followed by orally administered spray tests involving table salt and table sugar. Between the tests the children and escorting parent(s) were interviewed about dietary and seasoning preferences. The children were then invited to eat...

MIT's ocean model precisely mimics microbes' life cycles

...acteristics of the oceans, but adds to the virtual soup about 100 random types of phytoplankton. The model randomly generates the single-celled plants, which differ primarily in their size, and in their sensitivity to light, temperature and nutrient availability, then allows the ocean to self-select those...

Tiny Tampa Bay fish key to evolution of immune system

...on found in people. The bay waters are a microbial soup teeming with microorganisms, yet the worm-like bottom-feeder is remarkably adept at standing up to the bacterial, viral and chemical threats in its environment. Understanding how it does so could lead to improved biodefense and better immune-boosting...

Who gives stem cells their marching orders?

...wesome feat of nature. As they bathe in a chemical soup they've manufactured themselves, stem cells react ... cancerous. Research has shown that the chemical soup in the developing embryo contains a protein factor called Nodal, a powerful "master chef" that contr...

Selecting life: Scientists find new way to search for origin of life

...ht- and left-handed -amino acids in the primordial soup could be concentrated and selected on a readily available mineral surface. The challenge since has been to determine which of the countless biomolecules/surface interactions are the most likely candidates to the first steps to life. "Crystal surf...

Methane-belching bugs inspire a new theory of the origin of life on Earth

...ccording to the heterotrophic theory, a primordial soup of simple molecules arose first, driven by nonbiological energy sources like lightning, and led eventually to primitive life forms. One difficulty with this theory is due to the huge variety and complexity of organic molecules that would have had to ...

Adult stem cells are touchy-feely, need environmental clues

...ed the study of the chemical microenvironment, the soup of chemical messenger signals that are generally thought to guide stem cells through the process of differentiation, where relatively "blank" stem cells turn into specific cell types. For the first time, the Penn researchers have proven that the phy...

Intelligently designed molecular evolution

...ar Grand fir enzyme synthase, it naturally makes a soup of small amounts of 52 different products. We were able to focus it instead on making large amounts of one of seven of those products." While the researchers have not yet reached the point where they can design a promiscuous enzyme to make any kind...

Restaurant seafood prices since 1850s help plot marine harvests through history

...n the Crimea became a flourishing industry. A fish soup produced in huge open-air boileries was consumed in such large quantities by the Romans that they significantly reduced fish stocks in the Mediterranean; * How 600 year-old Queen Conch shells from the Caribbean Sea reveal the decline in average s...

Scientists crack 40-year-old DNA puzzle and point to 'hot soup' at the origin of life

...n it needs to be also suggests that the primordial soup where life began on earth was hot and not cold, as many scientists believe. In a paper published in the Journal of Molecular Evolution this week, researchers from the University of Bath describe a new theory which they believe could solve a puzzle t...

Life's origins were easier than was thought

In the primordial soup that produced life on earth, there were organic molecules that combined to produce the first nucleic acid chains, which were the first elements able to self-replicate. According to one of the more accepted theories, these molecules were ribonucleic a...

Researchers develop new method for facile identification of proteins in bacterial cells

... to identify a unique dioxin-degrading enzyme in a soup of hundreds of cell proteins. The technique avoids elaborate conventional sample preparation steps by coaxing the cells into mass production of the protein the researchers wish to analyze. "Finding a specific target in a mixture of hundreds of prote...

Young Blood Revives Aging Muscles, Stanford Researchers Find

... Alto Health Care System. It could be the chemical soup surrounding the cells, not the cells themselves, that's at fault in aging. One clue to what might be going on also comes from previous work. Rando had found that satellite cells in younger muscles begin producing a protein dubbed Delta in response t...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...e brain, "monomers of all kinds are suspended in a soup in equilibrium," he said. Given that the components of amyloid fibrils measure only billionths of a meter and are floating in a disordered mix, "the initial stages of amyloid aggregation are not fully understood," he said. "When you start a normal r...

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