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Tag: "textbooks" at biology news

New book explains antibiotic resistance for a broad audience

...to come out of our comfortable niche as writers of textbooks and attempt to write a book for the general public about antibiotics and resistance to them." Revenge of the Microbes provides the scientific information readers will need to form opinions and make informed decisions regarding the use of antibiotics...

Biotechnology's newest chemical tool

... the authors took some tips from organic chemistry textbooks and stabilized the transfer with a multiple carbon bond. "It turned out that our first bet, a double or triple carbon-carbon bond, placed next to the transferable carbon unit, helped to alleviate the problems that had plagued the reaction in previo...

Olfactory system detects pheromones that control reproduction

...e inputs from the vomeronasal system. For example, textbooks on reproductive physiology say that pheromonal modulation of reproductive behavior depends on these connections," said Dulac. "However, our studies show that this idea is wrong." Previous experiments designed to tease out the routes of neurons used ...

Insects that produce males from unfertilized eggs reveal a surprising cellular feat

...ow, but 90 percent of the material in cell biology textbooks comes from research on nine or ten organisms," Sullivan said. "Every time I look at a honeybee now, I think about these amazing structures they have, and it implies that among the millions of other species there must be cellular mechanisms we haven't...

Researchers now able to look deep into heart to view triggers of a heart's beat

...ow, but 90 percent of the material in cell biology textbooks comes from research on nine or ten organisms," Sullivan said. "Every time I look at a honeybee now, I think about these amazing structures they have, and it implies that among the millions of other species there must be cellular mechanisms we haven't...

MIT creates 3-D scaffold for growing stem cells

...ill be in 3D with the designer scaffolds, and most textbooks about cell biology will have to be revised when people obtain results from 3D cell culture studies," Zhang said. The researchers are now testing the designer scaffold with a variety of cells, including tooth, bone, heart, liver, cartilage, skin, pa...

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

The giraffe's elongated neck has long been used in textbooks as an illustration of evolution by natural selection, but this common example has received very little experimental attention. In the January issue of the American Naturalist, researchers at the Mammal Research Institute in the Department of Zoology ...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...gy realm,'' Francis said, noting that most biology textbooks now divide life into three domains-Archaea, Bacteria and Eukarya, a category that includes plants, animals, fungi, algae and protozoa. Scientists believe that the most recent common ancestor of all three domains was a single-cell organism that liv...

Why do some queen bees eat their worker bee's eggs?

... or greater worker reproductive policing. Were the textbooks wrong" A new study appearing in the current iss...t with single-mated queens. "It seems that the textbooks do not need rewriting," write the authors. "Kin selection theory is important when studying relatedn...

Solution to bacterial mystery promises new drugs

...ll. The discovery also demonstrated that current textbooks use the wrong type of bacterium as a model to explain a critical biochemical step that most disease-causing bacteria use to make their membranes, according to Charles Rock, Ph.D., a member of the St. Jude Department of Infectious Diseases and senior ...

Undergraduate research shows leaderless honeybee organizing

...senior biology major Andrew Pierce went beyond the textbooks and uncovered something previously unknown. Pierce’s discovery has to do with detecting a significant new detail concerning the behavior of the European honeybee – perhaps the most studied and economically important insect on Earth. Beyond agricultu...

Researchers shed light on shrinking of chromosomes

...the poles of the cell. “It is at this stage that textbooks say chromosomes are shortest. Then, after separating they would expand again,” says Ellenberg. “But we found something very different. Shortly after they finish separating, chromosomes actually condense even further. This makes sense, because in this...

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