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Tag: "circles" at biology news

How to look at dinosaur tracks

... erosion may expose prominent layers of concentric circles extending from the former location of the true track. These “undertracks?reveal the squishing and displacement of sand when the heavy dinosaur took a step. “The tracks and undertracks of large theropods found in the [Middle Jurassic] Entrada Sands...

Will the plague pathogen become resistant to antibiotics?

...nce (MDR) sequences, is carried on plasmids, small circles of DNA that are passed easily between bacteria. In this study, the same MDR plasmids found in the Y. pestis from Madagascar were also present in bacteria such as Salmonella and Escherichia coli found in retail samples of beef, pork, chicken, and turk...

The brain's motivation station

...olved presenting the subjects with such symbols as circles or squares that indicated an amount of money the subjects could gain or lose--from no money to $5--by rapidly responding to a subsequently presented target by pressing a button. The subjects were notified immediately whether they had received the rew...

Fire ants: Their true story told by the scientist who loves them

...n Belt via 1940s Mobile, Ala., is known in biology circles as Solenopsis invicta and everywhere else as a painful pest in the grass, so to speak. Then there's Walter R. Tschinkel. An ardent fire ant fan and one of its foremost researchers for more than 30 years, Florida State University's Distinguished Res...

Agriculture and tropical conservation: rethinking old ideas

It's a long-held view in conservation circles that rural peasant activities are at odds with efforts to preserve biodiversity in the tropics. In fact, the opposite is often true, argue University of Michigan researchers John Vandermeer and Ivette Perfecto. Combining case studies with ecologic...

Supersized 'island' of resistance genes discovered in an infectious bacterium

...tance genes are usually located on small auxiliary circles of DNA called plasmids that can be exchanged with other individuals. But in A. baumannii, resistance genes were incorporated into the main chromosome, not the plasmids, according to the study. "It is like the A. baumannii genome is 'anticipating'...

Infants can organise visual information at just four months

...lines (or vertical columns) made up of squares and circles was used, constructed so that shape discrimination would be needed to 'see' lines or columns in the array. To test if visual grouping had occurred, images of plain bars of horizontal lines and vertical columns were then shown. If the infants looked f...

Female butterflies go for sparkle -- not size -- when choosing to mate

... ultraviolet reflectivity of the pupils, the white circles at the center of eyespots, according to new research from University at Buffalo biologists. The research, to be published online June 29 in the Proceedings of the Royal Society B: Biological Sciences, overturns previous work indicating that larger e...

New lifespan extension genes found

...genes are likely to be different, as the toxic DNA circles have not been identified in more advanced organisms, Lin said. The work was published in the Sept. 16 issue of Science. ...

Growth in the sea comes down to a struggle for iron

...is idea remains highly controversial in scientific circles given the very limited understanding of these unique systems, says Wells. Wells specializes in chemical oceanography and has worked in places as varied as Rhode Island's Narragansett Bay and Antarctica. Joining him on the July voyage were two UMaine...

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(Date:4/16/2014)... improves during childhood, associated with structural changes in ... parietal cortices. New research from UC Davis is ... crucial time. Eventually, that could give insights into ... and during adolescence and affect memory, such as ... middle of the brain, the hippocampus plays a ...
(Date:4/16/2014)... of Dr. Martin Prechtl, Leo Heim and their colleagues ... discovered a new method of generating hydrogen using water ... of particular interest when it comes to fuel cell ... mild hydrogen production using water and formaldehyde", have recently ... , Among other applications, the new approach can be ...
(Date:4/15/2014)... Tucked away in Hartford, Connecticut, a Puerto Rican community ... cuisine that is so authentic it has caught the ... and Gregory J. Anderson (University of Connecticut) took a ... Rican markets of Hartford and uncovered evidence that gives ... been using for years: home is in the kitchen. ...
Breaking Biology News(10 mins):How kids' brain structures grow as memory develops 2The human food connection: A new study reveals more about our relationship to food 2The human food connection: A new study reveals more about our relationship to food 3
(Date:4/14/2014)... orphaned by HIV/AIDS in South Africa may provide insight ... behavior issues in other areas of the world, which ... that could lead to successful interventions. , A ... United Nations mentions that due to the HIV/AIDS pandemic, ... African, children are at an increased risk for mental ...
(Date:4/14/2014)... A new study shows that moderate to severe ... risk of stroke, cancer and death. , Results of ... to severe obstructive sleep apnea were four times more ... times more likely to have a stroke (HR = ... (HR = 3.4), and 2.5 times more likely to ...
(Date:4/14/2014)... Dallas study involving serious youth offenders, the answer to one ... seven years: "How long do you think you,ll live?", According ... offending over time., Author Dr. Alex Piquero said the study ... of them offend at very high rates and commit more ... much later in life offend much less., "In a lot ...
(Date:4/14/2014)... with symptoms increasing dramatically during some of the most important ... has found. , Depressive symptoms increased on average by 68 ... young men, who were around 25 years old when they ... their children. The results of the study were published April ... is the first to identify when young fathers are at ...
(Date:4/14/2014)... Lower weight babies and babies who aren,t breastfed ... risk of developing chronic inflammation and related health ... study. , "There were good reasons to hypothesize ... inflammation in adulthood," says Thomas McDade (Northwestern University), ... in the Child & Brain Development program. "It ...
Breaking Medicine News(10 mins):Health News:Researchers identify children with emotional behavior difficulties 2Health News:Researchers identify children with emotional behavior difficulties 3Health News:Study links severe sleep apnea to increased risk of stroke, cancer and death 2Health News:UT Dallas study: Youth who fail to envision future commit more crimes 2Health News:Young dads at high risk of depression, too 2Health News:Low birth weight, less breastfeeding create later health risks 2
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