Large-scale genetic research carried out by Russian and American scientists have proved that contemporary mankind originated from a very small group of people. Common ancestors have been discovered for the entire population of many billions inhabiting all five continents of the Earth: these are two thousand primeval hunters-gatherers who used to live in Africa more than 100,000 years ago. New data has been also obtained about the rates and directions of human beings’ prehistoric evolution, and the way the continents got inhabited.
The research carried out L. A. Zhivotovsky, Doctor of Biology (Institute of General Genetics, Russian Academy of Sciences) jointly with the co-authors from the Standord and California Universities is devoted to the global landscape of human beings’ origination and distribution on the planet. (The research was funded through the grant of the Russian Foundation for Basic Research.) Identifying the length and position of all “branches” on our family tree is a worthy challenge to contemporary science!
The researchers have applied the recent achievements of molecular-biological technology which allow to concurrently analyze multiple DNA characteristics of a person. 377 DNA characteristics (markers) of the currently living nations from all the continents - 52 populations from Africa, Europe, Middle, Central and Eastern Asia, Oceania and America - were studied. Studying and comparing genetic characteristics typical of various groups of people, the researchers can learn a lot: not only to establish “family ties” between the nations, but also to determine how long ago the group of people was formed. Judging by the fact whether the “primitive” characteristics are diverse, or on the contrary the characteristic set is limited, the researchers determine whether the nation was numerous at the beginning of its history or originated from a small group of people. Certainly, this is done “by eye”: serious study requires application of contemporary mathematical methods and statistical technology. The theory of evolution today comes down not only to archaeology and genetics, but above all to mathematics.
Sergey Komarov | alfa
Chains of nanogold – forged with atomic precision
23.09.2016 | Suomen Akatemia (Academy of Finland)
Self-assembled nanostructures hit their target
23.09.2016 | King Abdullah University of Science and Technology
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
For the first time, Fraunhofer IKTS shows additively manufactured hardmetal tools at WorldPM 2016 in Hamburg. Mechanical, chemical as well as a high heat resistance and extreme hardness are required from tools that are used in mechanical and automotive engineering or in plastics and building materials industry. Researchers at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in Dresden managed the production of complex hardmetal tools via 3D printing in a quality that are in no way inferior to conventionally produced high-performance tools.
Fraunhofer IKTS counts decades of proven expertise in the development of hardmetals. To date, reliable cutting, drilling, pressing and stamping tools made of...
At AKL’16, the International Laser Technology Congress held in May this year, interest in the topic of process control was greater than expected. Appropriately, the event was also used to launch the Industry Working Group for Process Control in Laser Material Processing. The group provides a forum for representatives from industry and research to initiate pre-competitive projects and discuss issues such as standards, potential cost savings and feasibility.
In the age of industry 4.0, laser technology is firmly established within manufacturing. A wide variety of laser techniques – from USP ablation and additive...
Every three years, the plastics industry gathers at K, the international trade fair for plastics and rubber in Düsseldorf. The Fraunhofer Institute for Laser Technology ILT will also be attending again and presenting many innovative technologies, such as for joining plastics and metals using ultrashort pulse lasers. From October 19 to 26, you can find the Fraunhofer ILT at the joint Fraunhofer booth SC01 in Hall 7.
K is the world’s largest trade fair for the plastics and rubber industry. As in previous years, the organizers are expecting 3,000 exhibitors and more than...
23.09.2016 | Event News
20.09.2016 | Event News
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23.09.2016 | Life Sciences
23.09.2016 | Health and Medicine
23.09.2016 | Life Sciences