*comScore Releases Overview of European Internet Usage for February 2012*
LONDON, UK, 12 April 2012 – comScore, Inc., a leader in measuring the digital world, today released an overview of internet usage in Europe, showing that 386.6 million Europeans went online in February 2012 for an average of 28.2 hours per person. This release highlights internet usage in 49 European markets aggregated into the European region and provides individual reporting on 18 markets. Amongst its findings, the study also showed that 46 percent of Europeans visit Sports sites, with Turkey and Ireland having the highest penetration at approximately 70 percent in February 2012. (more…)
Parasitic wasps using tiny insects known as aphids as living nurseries for their brood can sniff out whether the host insect is protected by symbiotic bacteria, researchers have discovered.
A research team including Martha (Molly) Hunter from the department of entomology in the University of Arizona’s College of Agriculture of Life Sciences has disentangled relationships in an assembly of players that resemble Russian dolls: a bacterium that lives inside a tiny insect, a virus that infects those bacteria, and a parasitic wasp that lays its eggs in the insect.
In a war between parasite and host, the parasitic wasp, Aphidius ervi, and the pea aphid, Acyrthosiphon pisum, are locked in a battle for survival. (more…)
Some of the earliest humans to inhabit America came from Europe according to a new book.
Across Atlantic Ice puts forward a compelling case for people from northern Spain travelling to America by boat, following the edge of a sea ice shelf that connected Europe and America during the last Ice Age, 14,000 to 25,000 years ago.
Across Atlantic Ice is the result of more than a decade’s research by leading archaeologists Professor Bruce Bradley of the University of Exeter and Dr Dennis Stanford of the Smithsonian Institution. Through archaeological evidence, they turn the long-held theory of the origins of New World populations on its head.
For more than 400 years, it has been claimed that people first entered America from Asia, via a land bridge that spanned the Bering Sea. We now know that some people did arrive via this route nearly 15,000 years ago, probably by both land and sea. (more…)
Geologists at Yale University have proposed a new theory to describe the formation of supercontinents, the epic process by which Earth’s major continental blocks combine into a single vast landmass. The new model radically challenges the dominant theories of how supercontinents might take shape.
In a paper published Feb. 9 in the journal Nature, Yale researchers introduce a process called orthoversion, in which each succeeding supercontinent forms 90 degrees from the geographic center of its ancient predecessor. Under the theory, the present-day Arctic Ocean and Caribbean Sea will vanish as North and South America fuse during a mutual northward migration that leads to a collision with Europe and Asia. (more…)
An experimental device for removing blood clots in stroke patients dramatically outperformed the standard mechanical treatment, according to research presented by UCLA Stroke Center director Dr. Jeffrey L. Saver at the American Stroke Association’s 2012 international conference in New Orleans on Feb. 3.
The SOLITAIRE Flow Restoration Device is among an entirely new generation of devices designed to remove blood clots from blocked brain arteries in patients experiencing stroke. It has a self-expanding, stent-like design and, once inserted into a clot using a thin catheter tube, it compresses and traps the clot. The clot is then removed by withdrawing the device, thus reopening the blocked blood vessel. (more…)
*Studies of diving beetles suggest sperm evolution may be driven by changes in female reproductive organs, challenging the paradigm of post-mating sexual selection being driven mostly by competition among sperm.*
Studying female reproductive tracts and sperm in diving beetles (Dytiscidae), researchers from the University of Arizona and Syracuse University have obtained a glimpse into a bizarre and amazing world of sperm that can take on a variety of forms – including joining together into conglomerates that navigate the twisted mazes of the female reproductive tract.
Analyses of the evolutionary relationships among diving beetles reveal that sperm form appears to follow function dictated by female reproductive organs. (more…)
Researchers at UCLA’s Jules Stein Eye Institute and colleagues who successfully transplanted specialized retinal cells derived from human embryonic stem cells into the eyes of two legally blind patients report that the transplants appear safe and that both patients have experienced modest improvement in their vision.
The preliminary findings, published online Jan. 23 in the journal The Lancet, represent a milestone in the therapeutic use of stem cells and may pave the way for a new therapy to treat eye diseases, the researchers said. Because this is the first time physicians have applied the power of regenerative medicine to eye disease, the clinical trials are being watched closely by scientists, stem-cell therapy advocates and the public. (more…)
*comScore Releases Overview of European Internet Usage for November 2011*
LONDON, UK, 19 January 2012 – comScore, Inc., a leader in measuring the digital world, today released an overview of Internet usage in Europe, showing that 379.4 million Europeans went online in November 2011 for an average of 27.8 hours per person. This release highlights Internet usage in 49 European markets aggregated into the European region and provides individual reporting on 18 markets. Amongst its findings, the study also showed that 47.8 percent of Europeans visit Newspaper sites, with a notable percentage of visits to the top 5 Newspaper sites preceded by a visit to Facebook.
Nearly 1 in 2 Europeans Visit Newspaper Sites In November 2011, 181.5 million unique people in Europe visited Newspaper sites, an increase of 9 percent from the previous year. The Daily Mail continued to attract the largest audience at 20.1 million unique visitors, followed by the Guardian at 15.7 million unique visitors. Turkish newspapers Hürriyet and Milliyet and German newspaper Bild rounded out the top five Newspaper properties, with each attracting approximately 10 million unique visitors. (more…)
usage in Europe, showing that 386.6 million Europeans went online in February 2012 for an average of 28.2 hours per person. This release highlights internet usage in 49 European markets aggregated into the European region and provides individual reporting on 18 markets. Amongst its findings, the study also showed that 46 percent of Europeans visit Sports sites, with Turkey and Ireland having the highest penetration at approximately 70 percent in February 2012. (more…)