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What can a 45,000-year-old man teach us about our prehistoric mating habits?

Posted: Published on October 23rd, 2014

The DNA from the 45,000-year-old bone of a man from Siberia is helping to pinpoint when modern humans and Neanderthals first interbred, researchers say. Although modern humans are the only surviving human lineage, others once lived on Earth. The closest extinct relatives of modern humans were the Neanderthals, who lived in Europe and Asia until they went extinct about 40,000 years ago. Recent findings revealed that Neanderthals interbred with ancestors of modern humans when modern humans began spreading out of Africa 1.5 to 2.1 percent of the DNA of anyone living outside Africa today is Neanderthal in origin. It remains uncertain when interbreeding between modern humans and Neanderthals occurred. Previous estimates of these events ranged from 37,000 to 86,000 years ago. [See Photos of Humanity's Closest Relative] To help solve this mystery, scientists analyzed the shaft of a thighbone found by an artist and mammoth ivory collector, Nikolai Peristov, on the left bank of the river Irtysh near the settlement of Ust'-Ishim in western Siberia in 2008. They calculated the age of the man's bone to be about 45,000 years old. "This is the earliest directly dated modern human outside of Africa and the Middle East, and the oldest modern … Continue reading

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Fifa 15 – Hunter Chemistry Style Trading Tip Part 2! – Video

Posted: Published on October 23rd, 2014

Fifa 15 - Hunter Chemistry Style Trading Tip Part 2! 300 Likes for more Trading Tips?! 😀 CHEAP COINS HERE http://www.utcoins4u.com/#_a_JG94 USE THE CODE "JG94" FOR A 5 PERCENT DISCOUNT! Very Cheap Games: ... By: JoshGembo94 … Continue reading

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Chemistry 51A: Organic Chemistry. Lecture 8 – Video

Posted: Published on October 23rd, 2014

Chemistry 51A: Organic Chemistry. Lecture 8 UCI Chem 51A Organic Chemistry (Fall 2014) Lec 08. Organic Chemistry -- Intro to Acids and Bases View the complete course: http://ocw.uci.edu/courses/chem_51... By: UCIrvineOCW … Continue reading

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IGCSE Chemistry States of Matter Lesson 7: Diffusion – Video

Posted: Published on October 23rd, 2014

IGCSE Chemistry States of Matter Lesson 7: Diffusion Core LO: Describe and explain diffusion. SC: Remember that liquid and gas particles can move past each other in random motion. Remember that dissolving a solute (either solid,... By: Ben Koh … Continue reading

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IGCSE Chemistry States of Matter Lesson 8: Rate of Diffusion – Video

Posted: Published on October 23rd, 2014

IGCSE Chemistry States of Matter Lesson 8: Rate of Diffusion Core LO: Describe qualitatively the pressure and temperature of a gas in terms of the motion of its particles. Extended LO: Describe and explain dependence of rate of diffusion on molecular... By: Ben Koh … Continue reading

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New chemistry lab at ASD funded by Nashua dentist

Posted: Published on October 23rd, 2014

A generous donation by a local dentist will go a long way toward solving a space crunch at one of the most important places at the Nashua charter school focused on the sciences: the science lab. Dr. Scott Bobbitt donated $30,000 to the Academy of Science and Design, to build a second chemistry lab, halving the free-for-all of four classes sharing the lab space and better fulfilling the schools mission to focus on education in science, technology, engineering and math. ... Subscribe or log in to read more A generous donation by a local dentist will go a long way toward solving a space crunch at one of the most important places at the Nashua charter school focused on the sciences: the science lab. Dr. Scott Bobbitt donated $30,000 to the Academy of Science and Design, to build a second chemistry lab, halving the free-for-all of four classes sharing the lab space and better fulfilling the schools mission to focus on education in science, technology, engineering and math. Amy Bewley, Coordinator of Admissions, Marketing and Communications for ASD, said students currently have to share one lab between four separate science classes. We have one lab for both biology and chemistry, … Continue reading

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International Academy of Cardiology Uri Elkayam, M D PERIPARTUM CARDIOMYOPATHY – Video

Posted: Published on October 23rd, 2014

International Academy of Cardiology Uri Elkayam, M D PERIPARTUM CARDIOMYOPATHY By: Cardiology Online … Continue reading

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International Academy of Cardiology Kenneth Maiese, M D CELL LONGEVITY PATHWAYS GOVERN VASCULAR – Video

Posted: Published on October 23rd, 2014

International Academy of Cardiology Kenneth Maiese, M D CELL LONGEVITY PATHWAYS GOVERN VASCULAR By: Cardiology Online … Continue reading

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International Academy of Cardiology Nalini M Rajamannan, M D ROLE OF LRP5 IN CALCIFIC AORTIC 2 – Video

Posted: Published on October 23rd, 2014

International Academy of Cardiology Nalini M Rajamannan, M D ROLE OF LRP5 IN CALCIFIC AORTIC 2 By: Cardiology Online … Continue reading

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International Academy of Cardiology Robert Roberts, M D GENETICS OF CORONARY ARTERY DISEASE – Video

Posted: Published on October 23rd, 2014

International Academy of Cardiology Robert Roberts, M D GENETICS OF CORONARY ARTERY DISEASE By: Cardiology Online … Continue reading

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