Friday, September 20, 2019
Home Tags Archaeology

Tag: Archaeology

Added by PressForward

Humans migrated to Mongolia much earlier than previously believed

Mongolia highlighted on globe (stock image). Credit: © harvepino / Adobe Stock Stone tools uncovered in Mongolia by an international team of archaeologists indicate that modern humans traveled across the Eurasian steppe about 45,000 years ago, according to a new University of California, Davis, study. The date is about 10,000 years earlier than archaeologists previously…

How microbes generate and use their energy to grow

Saccharomyces cerevisiae (baker's yeast) illustration (stock image). Credit: © Kateryna_Kon / Adobe Stock How do cells generate and use energy? This question might seem simple, but the answer is far from simple. Furthermore, knowing how microbial cell factories consume energy and how proteins are allocated to do so is crucial when working with industrial fermentations.…

Nano-thermometer takes temperature inside cells

Cells illustration (stock image). Credit: © rost9 / Adobe Stock How do you know a cell has a fever? Take its temperature. That's now possible thanks to research by Rice University scientists who used the light-emitting properties of particular molecules to create a fluorescent nano-thermometer. The Rice lab of chemist Angel Martí revealed the technique…

Here’s how early humans evaded immunodeficiency viruses

Mangabey monkeys (stock image). Credit: © PicsArt / Adobe Stock For hundreds of thousands of years, monkeys and apes have been plagued by simian immunodeficiency virus (SIV), which still devastates primate groups in Africa. Luckily, as humans evolved from these early primates, we picked up a mutation that made us immune from SIV -- at…

A novel technology for genome-editing a broad range of mutations in...

Gene editing concept (stock image). Credit: © vchalup / Adobe Stock The ability to edit genes in living organisms offers the opportunity to treat a plethora of inherited diseases. However, many types of gene-editing tools are unable to target critical areas of DNA, and creating such a technology has been difficult as living tissue contains…

Hear them roar: How humans and chickadees understand each other

Black-capped chickadee (stock image). Credit: © Riverwalker / Adobe Stock Is there something universal about the sounds we make that allows vocal learners -- like songbirds -- to figure out how we're feeling? Sounds like it, according to new research by University of Alberta scientists. The researchers examined the elements within vocalizations that indicate a…

Insects feel persistent pain after injury, evidence suggests

Fruit fly (stock image). Credit: © Tomasz / Adobe Stock Scientists have known insects experience something like pain since 2003, but new research published today from Associate Professor Greg Neely and colleagues at the University of Sydney proves for the first time that insects also experience chronic pain that lasts long after an initial injury…

Origin of life insight: Peptides can form without amino acids

Molecules of life concept (stock image). Credit: © Sebastian Kaulitzki / Adobe Stock Peptides, one of the fundamental building blocks of life, can be formed from the primitive precursors of amino acids under conditions similar to those expected on the primordial Earth, finds a new UCL study. The findings, published in Nature, could be a…

Saving Beethoven: Preventing hereditary deafness

Lab mouse (stock image). Credit: © filin174 / Adobe Stock Scientists at Harvard Medical School and Boston Children's Hospital have used a novel gene-editing approach to salvage the hearing of mice with genetic hearing loss and succeeded in doing so without any apparent off-target effects as a result of the treatment. The animals -- known…

New antibiotics developed

Bacterial culture (stock image). Credit: © sinhyu / Adobe Stock Not only are they effective against Gram-positive and negative multi-resistant bacteria, they also appear not to trigger resistance when used to treat infection in mice. Such are the promises of the two new antibiotics created by Prof. Brice Felden and his team at the Inserm…

More ‘reactive’ land surfaces cooled the Earth down

Matterhorn peak, Swiss Alps (stock image). Credit: © Ekaterina Grivet / Adobe Stock From time to time, there have been long periods of cooling in Earth's history. Temperatures had already fallen for more than ten million years before the last ice age began about 2.5 million years ago. At that time the northern hemisphere was…

Ancestor of the great white shark

Modern-day great white shark (stock image). Credit: © Davidpstephens / Adobe Stock Mackerel sharks (Lamniformes) are a group consisting of some of the most iconic sharks we know, including the mako shark (the fastest shark in the world), the infamous great white shark and Megalodon, the biggest predatory shark that has ever roamed the world's…

Coral reefs shifting away from equator

Coral reef (stock image). Credit: © drew / Adobe Stock Coral reefs are retreating from equatorial waters and establishing new reefs in more temperate regions, according to new research in the journal Marine Ecology Progress Series. The researchers found that the number of young corals on tropical reefs has declined by 85 percent -- and…

Researchers can finally modify plant mitochondrial DNA

Rice in field (stock image). Credit: © orijinal_x / Adobe Stock Researchers in Japan have edited plant mitochondrial DNA for the first time, which could lead to a more secure food supply. Nuclear DNA was first edited in the early 1970s, chloroplast DNA was first edited in 1988, and animal mitochondrial DNA was edited in…

‘Mystical’ psychedelic compound found in normal brains of rats

Colorful brain concept (stock image). Credit: © frittipix / Adobe Stock In the past few years, thrill-seekers from Hollywood, Silicon Valley and beyond have been travelling to South America to take part in so-called Ayahuasca retreats. Their goal: to partake in a brewed concoction made from a vine plant Banisteriopsis caapi, traditionally used by indigenous…

‘Mystical’ psychedelic compound found in normal brains of rats

Colorful brain concept (stock image). Credit: © frittipix / Adobe Stock In the past few years, thrill-seekers from Hollywood, Silicon Valley and beyond have been travelling to South America to take part in so-called Ayahuasca retreats. Their goal: to partake in a brewed concoction made from a vine plant Banisteriopsis caapi, traditionally used by indigenous…

Space station mold survives high doses of ionizing radiation

International Space Station illustration (stock image, elements furnished by NASA). Credit: © Sasa Kadrijevic / Adobe Stock The International Space Station, like all human habitats in space, has a nagging mold problem. Astronauts on the ISS spend hours every week cleaning the inside of the station's walls to prevent mold from becoming a health problem.…

Translating proteins into music, and back

Abstract musical notes (stock image). Credit: © flashmovie / Adobe Stock Want to create a brand new type of protein that might have useful properties? No problem. Just hum a few bars. In a surprising marriage of science and art, researchers at MIT have developed a system for converting the molecular structures of proteins, the…

What made humans ‘the fat primate’?

Obesity and genetics concept (stock image). Credit: © iQoncept / Adobe Stock Blame junk food or a lack of exercise. But long before the modern obesity epidemic, evolution made us fat too. "We're the fat primates," said Devi Swain-Lenz, a postdoctoral associate in biology at Duke University. The fact that humans are chubbier than chimpanzees…

What made humans ‘the fat primate’?

Obesity and genetics concept (stock image). Credit: © iQoncept / Adobe Stock Blame junk food or a lack of exercise. But long before the modern obesity epidemic, evolution made us fat too. "We're the fat primates," said Devi Swain-Lenz, a postdoctoral associate in biology at Duke University. The fact that humans are chubbier than chimpanzees…

Let's Connect

5,319FansLike
638FollowersFollow
1,622FollowersFollow
- Advertisement -

MOST POPULAR

NEW POSTS

- Advertisement -