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top floor last night sitting, the Wonder thoughts all the recent messy Germany! ...
Smart plan has ushered in rain! ...
A person sustained in the attic so smart a long time,
franklin et marshall! ...
Boring German holding a cell phone, a search of the address book of D'! ...
Do not want to dial a phone call! ...
Germany in my tangled when you called smart,
abercrombie and fitch! ...
Ha ha! ... Long time never heard you sound smart Tak! ...
Ah! You asked me how long we talked to did not like this smart,
abercrombie & fitch! ...
How smart? 354 days we have spoken to do not have such a good German smart! ...
Fleeting indulgence, not tight grasping, but also will not go away! ...
All the past De shallow smile de pain! ...
Searching and searching, stop and go! ...
Smart so long, but it had not been thought of looking for a dependent! ...
Phone constantly updated with Reed song! ... There was just a bear to delete! ...
My ears with headphones! ... Even sleep every night also requires late late! ...
Always thought he would take over Germany and German! ... Wake up one day to find distressed with! ...
Hurt the German life and life! Germany will be good ... maybe! ... Just need a little bit! ...
Fight smart life greatly De De De to open eyes! ... Germany will head Yangde high! ...
Still can not stop the German wild! ...
Ear came certain familiar melody Germany! ... Hear a certain familiar German sentence! Sese ...
heart in Germany,
christian louboutin! ... Until the rain in the face! ...
Rain and when mixed with Germany, who would distinguish those are tears, those are water! ...
You everything I'm not very German! It is very distressed! ...
Not allow ourselves to cry! Germany puts its own world filled with sadness! ...
Night I left Tehran Tak! ... Can not see afar! Can not find the exit! ...
Germany have been looking at someone else! Those who do not want to read but never thought! ...
Germany on your topic! I did not say, I will never remain silent German only! ...
Because you de world, I am not, would not understand! ...
So, I can only silently watching Germany! ...
This show has always been a person I am a self! ...
Hurt in the end, Germany is the most painful to know you! ...
Your little section of Germany, jumped up and down I will be happy de! ...
I am not a German opera world! ...
Be it in your German world,
louboutin, but you always take it as a play,
doudoune moncler pas cher! ...
A self Tak Tak child is a person one-man show after all! ...
Only German pilot shot lead and supporting roles, so that their confusion smart! ...
Lak, the original German play you, I'm just a supporting role! ...
Ignored smart, in your German world, and I'm only a passer! ...
Should or should not, or myself? Confessions of cold! ...
Ending after all, is not the answer! I want to de ...
not that! ... As long as you can take to control smart German! ...
Although you are not now because I am German! ...
But you still care about me WYJ most German people! ...
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相关的主题文章:
I will quietly thought
I said to myself
and sure to tell you
.
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.