- Love the articlePerhaps a woman too weak , and always take the starting fit , may be too much bother the man , always like to hate the old bar ,
louboutin pas cher! Women always want their loved ones to their single-minded , but there are a few men to do that? That is not clear , but also have people like it! But you read the following what would you think?
This is a true story , 18 -year-old girl that year , 22 -year-old boy , who is a fellow who is because of this together very quickly , the girl he loves , the girl will always go to work every day to see the boy in the late the beginning of boys to girls is also very good , every day brought him to the girl concerned , then , will be to see the girl , then even though the boy is the girl to eat the money , but the girl was very satisfied , but the girls he will not hate myself hate cooking ,
moncler sito ufficiale, Cook bought the girl every day, only the boys with their boy friends state that burn every day to the cycle , and finally a few text messages as the girl's friends ,
abercrombie and fitch france, the boy slowly changed One day the boy told the girl that he came back two days to go to Shanghai , the girl nodded ,
abercrombie france, the boy left the girl friend is gone,
abercrombie and fitch, the girl began to fear , fear of the boy in is not returned, but the boy came back not long ,
moncler quincy, the girl 's friends came back , afraid of things that start so slowly , the boy came back that night the girl because her sister left home with the family quarrel , the girl did not go to see the boy , the girl the next morning full of joy to to see the boy , and saw the boy lying down together with her little sister , the girl did not say a word and left , leaving the girl crying after the boy hit it to the phone also asked the boy why so on their own , the boy just laughed cold a laugh, that is your own silly, because this sentence the girl to see themselves drunk every day , every day in tears ,,,,,,,,
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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.