I : In 1973 , China's domestic production, the AQSIQ and the European Union certified as ultra- high-quality products ( export exemption ) ,
louboutin chaussure, 37 years of safe operation has never been a fault , performance, stability ,
franklin et marshall, days of the two bags of coffee , three packs of instant noodles can be put into the normal drive . Now acquired a girlfriend ,
abercrombie & fitch, origin : the Earth , the date of manufacture : 1970 , Quality : 65kg ,
moncler sito ufficiale, the certification must pass the ISO9001 quality system , parts range , length : 163cm or more. Usually not too much noise ,
doudoune moncler, in normal operation without incident.
Qianbian type
straightforward type
Lead : Network shortage is the most attention, how to use a few words to attract the attention of others is an art. Ray summed up a lot of friends who love and marriage dating monologue , Ray was all the wind clutter .
( Editor : Lily )
Ray type
can have one of the following priority : there are four different color stockings ; have five different styles of scarf or shawl ; barefoot while wearing a pant or skirt to wear shoes ; for family to give up their career ; who sing and dance ; skilled use two foreign languages .
my face skin very well , in order to make the other psychological balance , please do not face each other on the pit with the moon , youth smallpox and other horrible stuff ; my skin is very white , they do not feel race to make the difference ,
franklin marshall france, and I look forward to the other side not too much difference ... ...
I am stupid , it does not speak until the age of so large or old bachelor .
funny type
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Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday.
An international team of researchers found that a sugar chain known as the sialyl-lewis-x sequence (SLeX) makes the outer coat of the egg “sticky,” which has proven to be helpful in binding the egg and the sperm.
As a result, this observation has filled in a huge gap in the understanding of fertility and provides hope for ultimately helping couples who currently cannot conceive.
Scientists and doctors know that a sperm identifies an egg when proteins on the head of the sperm match and bind to a series of specific sugars in the egg’s outer coating. With a successful match of proteins, the outside surfaces of the sperm and egg then bind together before merging, which is then followed by delivery of sperm’s DNA into egg.
To identify this molecules, the researchers used ultra-sensitive mass-spectrometric imaging technology to observe and identify which molecules are most likely to be key in the binding process.
They experimented with a range of synthesised sugars in the laboratory and found that it is SLeX that specifically binds sperm to an egg.
According to the World Health Organisation, infertility affects about 15 percent of reproductive-aged couples around the world and almost one in every seven couples in Britain has problems conceiving a child for various reasons.