geekmannurat >>

nabaliwan ti websitena. itan pati logo wenno mascot, nabaliwanen. mayat man a metamorposis daytoy napintas ken natalged nga os.

ni daan a logo, ni beastie, ti bsd daemon:

ti baro a logo, nagmorph ni beastie:

maymaysa a tao ti nagtaudan ti kaputotan ti mapan a maysa-ket-gudua a riwriw a tao? interesting.

1.5m Chinese ‘descendants of one man’

Research into an unusually high prevalence of a particular set of genes in China has suggested that 1.5 million Chinese men are direct descendants of Giocangga, the grandfather of the founder of the Qing dynasty.

Giocangga’s extraordinary number of descendants, concentrated mainly in north-east China and Mongolia, are thought to be a result of the many wives and concubines his offspring took.

Dr Chris Tyler-Smith, a geneticist working at Britain’s Wellcome Trust Sanger Institute, made the finding, based on a study of a set of genes on the male Y chromosome.

He told the BBC World Service’s Science In Action programme that these genes provided a “genetic surname” of the family to which each man belonged.

“What we did was analyse around 1,000 men from that part of the world,” he said.

“We noticed just two types of Y chromosome that were extraordinarily frequent - one of them making up around 3% of our sample.

“When we looked at it more carefully, we found that it was not present in the majority population in that area, the Han. But in the minorities, including the Mongolians, it was present at around 5%.”

‘Good chance of survival’

Scientists were then able to work out roughly where the special genes came from.

They established the origin was north-east China, around 500 years ago.

More accurate analysis then found that this particular genetic code first appeared just before the Qing dynasty, which came to the fore in 1616 and had conquered China by 1644.

“We soon realised there was a major historical event going on at this time - the establishment of the Qing dynasty, which conquered China and ruled for several hundred years,” Dr Tyler-Smith said.

“It was ruled by the Qing imperial nobility, who were a highly privileged elite class, and they had several wives and concubines.

“Because of the privilege, they could have had many children - and those children would have had a good chance of survival.”

At the time of Giocangga, the population of China was about 100 million - compared with 1.3 billion today.

This means that the average Chinese man at the time of Giocangga would only have around 20 descendants living today - in marked contrast to Giocangga’s 1.5 million men.

“The difference is accounted for by the large number of wives and concubines - and in particular, this practice being linked to the Y chromosome for many generations,” Dr Tyler-Smith added.

Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/1/hi/world/asia-pacific/4396246.stm

Published: 2005/11/01 15:10:17 GMT

© BBC MMV

ala, ket ni ngata met solomon ket rinibribu met idi ti asawa ken kamalalana?

nalaing man daytoy nga ubing a producto ti anonymous a kapsit:

Ask Y: Child born from sperm donation traces father on Internet

A 15-year-old boy born from anonymously-donated sperm used an online DNA-testing service and the Internet to track down his genetic father, a feat which suggests that promises of donor secrecy are worthless, the British weekly New Scientist reports on Saturday.

The teenager was able to rip through every veil of anonymity by using a DNA test, genealogical records and searches on the Internet, it says.

The boy, who was not named, started the hunt for his biological father by rubbing a swab along the inside of his cheek, putting it in a vial and sending it off to an online US DNA genealogy service, with a payment of 289 dollars (240 euros).

The service, designed to help people uncover their family tree, matched the boy’s Y chromosome — which passes from father to son, virtually unchanged — against a databank of Y chromosomes from other men.

After nine months, he was contacted by two men whose Y chromosomes closely matched his own.

Neither men knew each other, but the similarity between their Y chromosomes suggested there was a 50-percent chance that all three had the same father, grandfather or great-grandfather.

In addition, both men had the same last name, although with different spellings.

Using this vital clue, the boy launched his Internet search.

Although his donor had been anonymous, the boy’s mother had been told the man’s date and place of birth and his college degree.

Using another online service, the boy purchased the names of everyone who had been born in the same place on the same day.

“Only one man had the surname he was looking for, and within 10 days he had made contact,” New Scientist says.

The news will be unsettling to any man who donated sperm before the advent of the Internet and before the power of genetics was fully appreciated, the magazine says.

“With the explosion of information about genetic inheritance, any man who has donated sperm could potentially be found by his biological offspring.

“Absent and unknown fathers will also become easier to trace.”

In some countries, sperm donors are required by law to allow their identity to be revealed to their children once their offspring reaches a certain age.

In others, though, including the United States, most sperm donors are still anonymous.

© 2005 AFP

This news is brought to you by PhysOrg.com

nabileg met a talaga ti internet ta kabalinanna dagiti kakastoy a pagteng a panangsapul iti di am-ammo nga ama a naggapuan.

ne, ket nagmayaten daytoy a computer ta mabalinmo nga aramaten a laptop, mabalin pay a desktop, ‘ta kayatmon!

It’s a laptop with a detachable 19″ screen, so you can use your laptop as a desktop too. What’s the use you might think… well, in case you need a bigger screen than a 19″, you can connect it to a bigger one or a plasma TV, and your laptop screen can be connected to another PC. And if you’re on the go, you just use this PC as any other regular laptop.

naglapsat a pc, ania? santo pay la kakastat’ kalalapsat ken kapupungga ti promo girlna di kad’ talaga a nakamaymayat, hehe!