Big apes share more than 90% of our genome and still we are undoubtedly very different. So what is it that gives us our unique “humanness” and higher intelligence ? In an article about to be published in the ’journal Medical Hypotheses’ a group of Portuguese researchers propose that the differences which separate apes and humans, such as brain size and intellect, can be explained by differences in thyroid and steroids hormones.
It is now well accepted that intelligence is dependent on brain size, and in fact the brain of an ape is approximately a third of the size a human’s brain. This means “factors” known to affect brain size might be involved in the different intelligence observed, not only between human and non-human primates, but also throughout human evolution. And that is the premise for the work of H.R. Correia, S.C. Balseiro and M.L. de Areia, a group pf Portuguese academics from the Department of Anthropology, University of Coimbra, Coimbra, Portugal.
The team of researchers propose that the differences observed between apes and humans, and also between different hominids, result from distinct metabolisms in thyroid and sex steroids hormones, such as testosterone (the hormone responsible for male secondary sex characteristics) and estrogens (responsible for female secondary sex characteristics).
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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