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Tag: "textbook" at biology news

Researchers discover way to make cells in the eye sensitive to light

...hecharacteristics of this interesting protein. The textbook view of theeye is that it contains only two light sensing systems, the rods andcones. However, over the last few years it has become increasinglyaccepted that we have a third system, which uses melanopsin, that haslain undetected during decades of vi...

Researchers make surprise discovery that some neurons can transmit three signals at once

...ngly at odds with each other. One, glutamate, is a textbook excitatory neurotransmitter; while the other two, GABA and glycine, are quintessential inhibitory neurotransmitters. Information is transmitted between neurons when one cell releases a neurotransmitter at a synapse, the point of contact between cell...

What comes first…the chicken, the egg, or the bad attitude?

...e exceptional "super-mom" birds that don't fit the textbook norm has opened new doors in the research program. "If the offspring of these special hens are also more efficient, the broiler industry could move forward in leaps and bounds. As a result of their findings, Robinson, Renema and Zuidhof have broaden...

The synapse is a shotgun

...nsmitters involved in neuronal communication. The textbook view of the synapse describes it as a place where ... means that you can't really trust the traditional textbook view -- in which all the vesicles are released at the active zone -- that's taken for granted now." ...

New law for resolution allows unprecedented sharpness in fluorescence microscopy

...s being insurmountable. For higher resolution, the textbook knowledge was that a complicated and costly electron or scanning tunneling microscope would be required. However, over the past few years, researchers from the Max Planck Institute for Biophysical Chemistry in Göttingen, Germany, have developed with ...

Microbiology text tells stories, offers online resources

A new general microbiology textbook aimed at undergraduate students comes with not one...en by eminent scientists with practical teaching, textbook writing and research experience, Microbe, will engage students in the learning process with its clea...

There's something fishy about human brain evolution

Forget the textbook story about tool use and language sparking the dramatic evolutionary growth of the human brain. Instead, imagine ancient hominid children chasing frogs. Not for fun, but for food. According to Dr. Stephen Cunnane it was a rich and secure shore-based...

Parts of the Caribbean and Central America are likely to have less summer rain

... year-to-year climate variability. He is writing a textbook for Cambridge University Press on climate modeling and climate change. Concerning global warming, Neelin said, "For years, the vast majority of scientists have felt there is convincing evidence that we are at the beginning stages of human-induced gl...

One big biology question solved

...e out until now," Professor Koopman said. "It is textbook science and it should provide the basis for a number of practical applications." Knowledge of what triggers and suppresses meiosis may allow researchers to improve fertility, for example in the case of an infertile couple wanting a baby, or suppres...

Researchers find molecular 'brake' to cell death

...ntific dogma so long accepted that it has become a textbook standard when talking about apoptosis," he continues. Researchers agree that the seminal event that leads to initiation of apoptosis is the release of a key protein known as cytochrome c (CC) from a cell's mitochondria, the organelle's energy store...

Scientists describe new African monkey genus ?first in 83 years

...the University of Alaska Museum. "This study is a textbook example of how a variety of individuals and institutions spanning the globe can work together to significantly improve our understanding of the biodiversity of this planet," Stanley says. "Within hours of Sophy Machaga creeping through the rain-soake...

Winning by a neck -- Giraffes avoid competing with shorter browsers

..., which provides support for a previously untested textbook example of natural selection," says Elissa Cameron (University of Pretoria), who coauthored the study with Johan du Toit (University of Pretoria and Utah State University). Giraffes are well known for their unusual height, and they generally feed...

Plants give up answers in the war on bacteria

...ng He at Michigan State University has changed the textbook description of a plant's surface terrain and is unveiling new knowledge of how bacterial pathogens invade plants and take hold. The most recent paper, published in the Sept. 8 edition of Cell, redefines the role of the plant's pores in defense agains...

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