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Categories: Anthropology: General, Chemistry: General

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Anthropology: Early Humans Anthropology: General
Published

Vittrup Man crossed over from forager to farmer before being sacrificed in Denmark      (via sciencedaily.com)     Original source 

Vittrup Man was born along the Scandinavian coast before moving to Denmark, where he was later sacrificed, according to a new study.

Anthropology: Early Humans Anthropology: General Archaeology: General Biology: General Biology: Zoology Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
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Some Pre-Roman humans were buried with dogs, horses and other animals      (via sciencedaily.com)     Original source 

Some people from an ancient community in what is now northern Italy were interred with animals and animal parts from species such as dogs, horses and pigs. The reasons remain mysterious, but might indicate an enduring companion relationship between these humans and animals, or religious sacrificial practices, according to a new study.

Anthropology: General
Published

Did Eurasia's dominant East-West axis 'turn the fortunes of history'?      (via sciencedaily.com)     Original source 

Jared Diamond proposed that Eurasia's unique geographic axis of orientation fueled a rapid spread of critical innovations among its societies, leading to a cultural and military dominance over other regions. A team of ecologists and cultural evolutionists from the USA, Germany and New Zealand harnessed extensive cultural, environmental and linguistic databases to test these claims. They found that environmental barriers have influenced cultural spread but do not consistently favour Eurasia.

Biology: Microbiology Chemistry: General Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Biomanufacturing using chemically synthesized sugars enables sustainable supply of sugar without competing with food      (via sciencedaily.com)     Original source 

Researchers have succeeded in biomanufacturing from chemically synthesized sugar for the first time in the world. With refinement of this technology, one can envision a future society in which the sugar required for biomanufacturing can be obtained 'anytime, anywhere, and at high rate'. In the future, biomanufacturing using chemically synthesized sugar is expected to be a game changer in the biotechnology field -- including the production of biochemicals, biofuels, and food, where sugar is an essential raw material -- ultimately leading to the creation of a new bio-industry.

Anthropology: Early Humans Anthropology: General Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
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Great apes playfully tease each other      (via sciencedaily.com)     Original source 

Babies playfully tease others as young as eight months of age. Since language is not required for this behavior, similar kinds of playful teasing might be present in non-human animals. Now cognitive biologists and primatologists have documented playful teasing in four species of great apes. Like joking behavior in humans, ape teasing is provocative, persistent, and includes elements of surprise and play. Because all four great ape species used playful teasing, it is likely that the prerequisites for humor evolved in the human lineage at least 13 million years ago.

Chemistry: General Chemistry: Inorganic Chemistry Offbeat: General Physics: General
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Greetings from the island of enhanced stability: The quest for the limit of the periodic table      (via sciencedaily.com)     Original source 

Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry. These new elements have high atomic numbers up to 118 and are significantly heavier than uranium, the element with the highest atomic number (92) found in larger quantities on Earth. This raises questions such as how many more of these superheavy species are waiting to be discovered, where -- if at all -- is a fundamental limit in the creation of these elements, and what are the characteristics of the so-called island of enhanced stability. In a recent review, experts in theoretical and experimental chemistry and physics of the heaviest elements and their nuclei summarize the major challenges and offer a fresh view on new superheavy elements and the limit of the periodic table.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: Optics
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Exploring the effect of ring closing on fluorescence of supramolecular polymers      (via sciencedaily.com)     Original source 

The properties of supramolecular polymers are dictated by the self-assembled state of the molecules. However, not much is known about the impact of morphologies on the properties of nano- and mesoscopic-scale polymeric assemblies. Recently, a research team demonstrated how terminus-free toroids and random coils derived from the same luminescent molecule show different photophysical properties. The team also presented a novel method for purifying the toroidal structure.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology
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Can hydrogels help mend a broken heart?      (via sciencedaily.com)     Original source 

You can mend a broken heart this valentine s day now that researchers invented a new hydrogel that can be used to heal damaged heart tissue and improve cancer treatments.

Anthropology: General Biology: Evolutionary Biology: General Biology: Zoology Ecology: Nature Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Dinosaurs Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
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The hidden rule for flight feathers -- and how it could reveal which dinosaurs could fly      (via sciencedaily.com)     Original source 

Scientists examined hundreds of birds in museum collections and discovered a suite of feather characteristics that all flying birds have in common. These 'rules' provide clues as to how the dinosaur ancestors of modern birds first evolved the ability to fly, and which dinosaurs were capable of flight.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
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Not only in information technology: Restart also works in chemical simulations      (via sciencedaily.com)     Original source 

Scientists have discovered that a known practice in information technology can also be applied to chemistry. Researchers found that to enhance the sampling in chemical simulations, all you need to do is stop and restart.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
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Key advance for capturing carbon from the air      (via sciencedaily.com)     Original source 

A chemical element so visually striking that it was named for a goddess shows a 'Goldilocks' level of reactivity -- neither too much nor too little -- that makes it a strong candidate as a carbon scrubbing tool.

Chemistry: General Engineering: Graphene Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Sensors made from 'frozen smoke' can detect toxic formaldehyde in homes and offices      (via sciencedaily.com)     Original source 

Researchers have developed a sensor made from 'frozen smoke' that uses artificial intelligence techniques to detect formaldehyde in real time at concentrations as low as eight parts per billion, far beyond the sensitivity of most indoor air quality sensors.

Chemistry: General Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Conversion process turns greenhouse gas into ethylene      (via sciencedaily.com)     Original source 

Engineers have created a more efficient way of converting carbon dioxide into valuable products while simultaneously addressing climate change.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Towards A Better Way of Releasing Hydrogen Stored in Hydrogen Boride Sheets      (via sciencedaily.com)     Original source 

Hydrogen stored in hydrogen boride sheets can be efficiently released electrochemically, report scientists. Through a series of experiments, they demonstrated that dispersing these sheets in an organic solvent and applying a small voltage is enough to release all the stored hydrogen efficiently. These findings suggest hydrogen boride sheets could soon become a safe and convenient way to store and transport hydrogen, which is a cleaner and more sustainable fuel.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Physics: General Physics: Optics
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Molecular manganese complex as superphotooxidant      (via sciencedaily.com)     Original source 

Highly reducing or oxidizing photocatalysts are a fundamental challenge in photochemistry. Only a few transition metal complexes with Earth-abundant metal ions have so far advanced to excited state oxidants, including chromium, iron, and cobalt. All these photocatalysts require high energy light for excitation and their oxidizing power has not yet been fully exploited. Furthermore, precious and hence expensive metals are the decisive ingredients in most cases. A team of researchers has now developed a new molecular system based on the element manganese. Manganese, as opposed to precious metals, is the third most abundant metal after iron and titanium and hence widely available and very cheap.

Chemistry: General Chemistry: Inorganic Chemistry Physics: General
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New process allows full recovery of starting materials from tough polymer composites      (via sciencedaily.com)     Original source 

In a win for chemistry, inventors have designed a closed-loop path for synthesizing an exceptionally tough carbon-fiber-reinforced polymer and later recovering all of its starting materials.

Chemistry: General Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Researchers unveil method to detect 'forever chemicals' in under 3 minutes      (via sciencedaily.com)     Original source 

PFAS have earned the name 'forever chemicals' with good reason -- the human-made compounds, which can take thousands of years to degrade and are found in everything from grease-resistant food packaging to water-repellent clothing, have made their way into nearly half the U.S. tap water supply.

Chemistry: Biochemistry Chemistry: General
Published

Nanofiber bandages fight infection, speed healing      (via sciencedaily.com)     Original source 

Researchers have identified a new way to harness the antioxidant and antibacterial properties of a botanical compound to make nanofiber-coated cotton bandages that fight infection and help wounds heal more quickly.