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Tag: "descend" at biology news

Scripps research scientists identify infertility molecule

...egg is fertilized and made into an embryo, it must descend to the womb and implant there, where it will grow into a fetus. But the factors that control whether an embryo is able to implant successfully inside a womb have not been known. Now Chun and his colleagues have discovered a new molecular pathway tha...

Cells from amniotic fluid used to tissue-engineer a new trachea

...ted mesenchymal stem cells. Mesenchymal stem cells descend directly from embryonic stem cells and are abundant in the amniotic fluid. They specialize in making connective tissues, including muscle, bone, cartilage, fat and tendon. Fauza's team multiplied the amniotic mesenchymal cells in culture, then "seed...

Fish can determine their social rank by observation alone, study finds

...ts are unable to hold territories and consequently descend in social status," the authors wrote. "Success in aggressive bouts is therefore crucial to male reproductive fitness, and the ability to infer the relative strength of rivals before engaging them in potentially costly fights should be highly adaptive...

The origin of the brain lies in a worm

... diffusely over their body. Yet, all these species descend from a common ancestor called Urbilateria. If this ancestor already possessed a nervous system, what it might have looked like and how it gave rise to the diversity of nervous systems seen in animals today is what Detlev Arendt and his group study at...

Is there a pilot in the insect?

...ts. It accounts for the fact not only that insects descend facing a headwind and ascend with a tailwind, but also that honeybees land with a constant slope and drown when crossing mirror-smooth water1. Behind this astonishing behavior, hidden in the insect's cockpit, are movement detector neurons that act ...

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(Date:7/30/2014)... Scientists are searching through a massive collection of ... 50 years ago, and the effort is yielding fresh ... inhabited. , When the collection is fully curated, a ... the largest unbiased Dominican amber collection in the world, ... discovery thus far is that of a pygmy locust, ...
(Date:7/30/2014)... subject of major interest in neuroscience. A large ... distinct stages of Wallerian degeneration: transcription factor activation, ... gene expression responses in the distal segment of ... known, differences in gene expression between the proximal ... and co-workers from Nantong University, China used microarrays ...
(Date:7/30/2014)... analysis of the roughly 3,000 pieces is still in ... the results will be of major significance. "Amazingly often, ... species in Fushun amber that we found in Baltic ... , The Baltic amber comes from the Baltic Sea ... rich in finds are, e.g., the coastal regions of ...
Breaking Biology News(10 mins):Decades-old amber collection offers new views of a lost world 2Chinese mosquitos on the Baltic Sea 2
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Breaking Medicine News(10 mins):Health News:Eden Lew Recipient of 2014 EDSF Scholarship Honoring Chuck Forman 2Health News:Eden Lew Recipient of 2014 EDSF Scholarship Honoring Chuck Forman 3Health News:Homeostatic Cannabinoid Science ~ Publius’ July Roundup on the Bryan William Brickner Blog 2Health News:New Best Drug Rehabilitation Blog Posts Looks at 11 Drug Addiction Facts they Don’t Teach in School 2Health News:Dolce Vite Chocolatto® - World's Best Thick Dark Italian Hot Chocolate Now Available at NYC's Favorite Cafe Brooklyn Roasting Company 2
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