Sunday, 3 January 2016

5000 years old ancient iris human genomes

A farmer who was alive about 5200 years ago. In recent team of geneticists from Trinity College Dublin and archaeologists from Queen's University Belfast has differed  the first genomes from ancient Irish humans, and the information buried within is answering questions about the origins of Ireland's people and their culture
Belfast in 1855, she had lain in a Neolithic tomb chamber for 5,000 years;



The team found the genome of an early farmer woman, lived near Belfast about 5,200 years ago, and  three men from a later period, around 4,000 years ago in Bronze Age, after the introduction of metal working. Their landmark results are published in Proceedings of the National Academy of Sciences, USA..

Professor of Population Genetics in Trinti College, Dan Bradley said, "There was a great wave of genome change that swept into Europe from above the Black Sea into Bronze Age Europe and we now know it washed all the way to the shores of its most westerly island,"

Reconstruction of Ballynahatty Neolithic skull by Elizabeth Black. Her genes tell us she had black hair and brown eyes. Image credit: Barrie Hartwell.
Dr Eileen Murphy, Lecturer in Osteoarchaeology at Queen's University Belfast said "It is clear that this project has demonstrated what a powerful tool ancient DNA analysis can provide in answering questions which have long perplexed academics regarding the origins of the Irish,"

Whereas the early farmer had black hair, brown eyes and more rsigned southern Europeans, the genetic variants circulating in the three Bronze Age men from Rathlin Island had the most common Irish Y chromosome type, blue eye alleles and the most important variant for the genetic disease, haemochromatosis.
The latter C282Y mutation is so frequent in people of Irish descent that it is sometimes referred to as a Celtic disease. This discovery therefore marks the first identification of an important disease variant in prehistory.
"Genetic affinity is strongest between the Bronze Age genomes and modern Irish, Scottish and Welsh, suggesting establishment of central attributes of the insular Celtic genome some 4,000 years ago," said PhD Researcher in Genetics at Trinity, Lara Cassidy.


Source:- https://www.tcd.ie/

Friday, 1 January 2016

4 elements got finall seat in periodic table!!!

The official discovery of elements 113, 115, 117 and 118 means that all 118 elements in the periodic table’s 
International Union of Pure and Applied Chemistry declared that a Russian-U.S. collaboration had got sufficient evidence to claim the discovery of elements 115, 117 and 118.
The discovery award of element 113 credit to scientists at RIKEN in Wako, Japan by IUPAC.
Both groups synthesized the elements by slamming lighter nuclei into each other and tracking the decay of the radioactive superheavy elements that followed.

Researchers of Nuclear Research in Dubna, Russia, and  Lawrence Livermore National Laboratory in California credited with elements 115, 117 and 118.

IUPAC executive director Lynn Soby says " Published reports on the newly recognized elements will appear in early 2016"

Official recognition of the elements means that their discoverers earn the right to suggest names and symbols. Element 113 will be the first element discovered and named by researchers in Asia.

Robot with emotion

 "Nadine" receptionist at Nanyang Technological University (NTU Singapore). 

She looks almost like a human being, with soft skin and flowing brunette hair. She smiles when greeting you, looks at you in the eye when talking, and can also shake hands with you.
Nadia Thalmann (left) posing beside Nadine
Credit: Image courtesy of Nanyang Technological University
Unlike conventional robots, Nadine has her own personality, mood and emotions. She can be happy or sad, depending on the conversation. She also has a good memory, and can recognise the people she has met, and remembers what the person had said before.
Nadine is the latest social robot developed by scientists at NTU. The doppelganger of its creator, Prof Nadia Thalmann, Nadine is powered by intelligent software similar to Apple's Siri or Microsoft's Cortana. Nadine can be a personal assistant in offices and homes in future. And she can be used as social companions for the young and the elderly.
A humanoid like Nadine is just one of the interfaces where the technology can be applied. It can also be made virtual and appear on a TV or computer screen, and become a low-cost virtual social companion.
With further progress in robotics sparked by technological improvements in silicon chips, sensors and computation, physical social robots such as Nadine are poised to become more visible in offices and homes in future.
The rise of social robots
Prof Thalmann, the director of the Institute for Media Innovation who led the development of Nadine, said these social robots are among NTU's many exciting new media innovations that companies can leverage for commercialisation.
"Robotics technologies have advanced significantly over the past few decades and are already being used in manufacturing and logistics. As countries worldwide face challenges of an aging population, social robots can be one solution to address the shrinking workforce, become personal companions for children and the elderly at home, and even serve as a platform for healthcare services in future," explained Prof Thalmann, an expert in virtual humans and a faculty from NTU's School of Computer Engineering.
"Over the past four years, our team at NTU have been fostering cross-disciplinary research in social robotics technologies -- involving engineering, computer science, linguistics, psychology and other fields -- to transform a virtual human, from within a computer, into a physical being that is able to observe and interact with other humans.
"This is somewhat like a real companion that is always with you and conscious of what is happening. So in future, these socially intelligent robots could be like C-3PO, the iconic golden droid from Star Wars, with knowledge of language and etiquette."