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Tuesday, October 16, 2018

Cow gene study shows why most clones fail

It has been 20 years since Dolly the sheep was successfully cloned in Scotland, but cloning mammals remains a challenge. A new study of gene expression in developing clones now shows why most cloned embryos likely fail.

Why can’t monkeys speak? Vocal anatomy is not the problem

Monkeys and apes are unable to learn new vocalizations, and for decades it has been widely believed that this inability results from limitations of their vocal anatomy: larynx, tongue and lips. But an international team of scientists has now looked inside monkeys' vocal tracts with x-rays, and found them to be much more flexible than thought before. The study indicates that the limitations that keep nonhuman primates from speaking are in their brains, rather than their vocal anatomy.

Ancient enzyme morphed shape to carry out new functions in humans

A human enzyme has changed little from its days as a bacterial enzyme, new research reveals. In fact, the enzyme appears to be unique in its ability to change its shape—and its job in cells—without overhauling its basic architecture.

Mystery of biological plastic synthesis machinery unveiled

Plastics and other polymers are used every day. These polymers are mostly made from fossil resources by refining petrochemicals. On the other hand, many microorganisms naturally synthesize polyesters known as polyhydroxyalkanoates (PHAs) as distinct granules inside cells.

New evidence shows how bacterium in undercooked chicken causes Guillain-Barre Syndrome

A research team is the first to show how a common bacterium found in improperly cooked chicken causes Guillain-Barre Syndrome, or GBS. The federally funded research not only demonstrates how this food-borne bacterium, known as Campylobacter jejuni, triggers GBS, but offers new information for a cure.

Wind turbines may have beneficial effects for crops, research suggests

Turbulence created by wind turbines may help corn and soybeans by influencing variables such as temperature and carbon dioxide concentration, according to research. The project drew on data generated by research towers set up on a 200-turbine wind farm in Iowa.

Rock layers preserve record of ancient sea tides near Blythe, California

Five million years ago, the Colorado River met the Gulf of California near the present-day desert town of Blythe, California. The evidence, say geologists, is in the sedimentary rocks exposed at the edges of the valley where the river flows today.

Air pollution impairs function of blood vessels in lungs

Air pollution impairs the function of blood vessels in the lungs, according to a study in more than 16,000 patients.

Beans and peas increase fullness more than meat

Meals based on legumes such as beans and peas are more satiating than pork and veal-based meals according to a recent study. Results suggest that sustainable eating may also help with weight loss.

Researchers watch biomolecules at work

Scientists have succeeded in observing an important cell protein at work. To do this, they used a method that allows to measure structural changes within complex molecules. The further developed procedure makes it possible to elucidate such processes in the cell, i.e. in the natural environment. The researchers are also providing a tool kit, which allows a wide range of molecules to be measured.

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De Singapur a Nueva York: 5 cosas que aprendimos en el vuelo más largo...

En unas 17 horas y 25 minutos, volamos sin escalas, a bordo del vuelo SQ22 de Singapore Airlines, que ahora es la más ultra entre las rutas de ultra larga distancia. Fuente: Cnnenespanol.com

Aaron Hernández sufrió violencia y abuso sexual de niño, informa ‘Spotlight’

Aaron Hernández fue víctima de violencia y abuso sexual de pequeño. Estas fueron algunas de las informaciones publicadas por Spotlight, el prestigioso equipo de investigación del diario The Boston Globe Fuente: Cnnenespanol.com

15 aerolíneas que desaparecieron del mercado

Miles de aerolíneas han abierto y cerrado a lo largo del tiempo. Varias han sido víctimas de los precios del petróleo, la política, la mala gestión o la pérdida financiera. Te presentamos 15 de ellas. Fuente: Cnnenespanol.com