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ScienceDaily Anthropology 14.01.2022 MEZ 21:33:58
Before horses, ass hybrids were bred for warfare
Before the introduction of the domestic horse in Mesopotamia, valuable equids were being harnessed to ceremonial or military four wheeled wagons and used as royal gifts, but their true nature remained unknown. According to a palaeogenetic study, these prestigious animals were the result of a cross between a domestic donkey and a wild ass from Syria, now extinct. This makes them the oldest example of an animal hybrid produced by humans. mehr ...

ScienceDaily Intelligence 13.01.2022 MEZ 17:14:21
Why do we forget? New theory proposes 'forgetting' is actually a form of learning
We create countless memories as we live our lives but many of these we forget. Why? Counter to the general assumption that memories simply decay with time, 'forgetting' might not be a bad thing -- that is according to scientists who believe it may represent a form of learning. mehr ...

ScienceDaily Intelligence 13.01.2022 MEZ 00:13:58
Get moving to put the brakes on early Parkinson’s
A new study suggests that people with early-stage Parkinson's disease who regularly got one to two hours of moderate exercise twice a week, like walking or gardening, may have less trouble balancing, walking and doing daily activities later. mehr ...

ScienceDaily Anthropology 12.01.2022 MEZ 18:15:07
Earliest human remains in eastern Africa dated to more than 230,000 years ago
The age of the oldest fossils in eastern Africa widely recognized as representing our species, Homo sapiens, has long been uncertain. Now, dating of a massive volcanic eruption in Ethiopia reveals they are much older than previously thought. mehr ...

ScienceDaily Intelligence 12.01.2022 MEZ 16:56:30
Alzheimer’s: Inflammatory markers are conspicuous at an early stage
Long before the onset of dementia, there is evidence for increased activity of the brain's immune system. Researchers from DZNE and the University Hospital Bonn (UKB) come to this conclusion based on a study of more than 1,000 older adults. To this end, various proteins were measured in the cerebrospinal fluid: They served as so-called biomarkers that indicate inflammatory processes of the nervous system. As it turned out, some of these molecules seem to be part of a damage control program of the immune system, which could be useful for the development of new drugs. mehr ...

ScienceDaily Intelligence 12.01.2022 MEZ 16:56:27
Study may help clinicians use sleep brain wave patterns to diagnose dementia and other forms of cognitive impairment
Researchers have characterized how spindle detection parameter settings influence the association between spindles and cognition, and they identified parameters that best correlate with cognitive performance. mehr ...

ScienceDaily Anthropology 12.01.2022 MEZ 15:40:22
To destroy cancer cells, team 'travels back in time'
When an individual suffers from cancer, the process of programmed cell death called apoptosis does not occur normally, permitting abnormal cells to thrive. mehr ...

ScienceDaily Intelligence 12.01.2022 MEZ 15:40:06
Learning through ‘guided’ play can be as effective as adult-led instruction up to at least age eight
Teaching younger children through 'guided' play supports key aspects of their learning and development at least as well - and sometimes better - than the traditional direct instruction they usually receive at school, a new analysis finds. Guided play broadly refers to playful educational activities which, although gently steered by an adult using open-ended questions and prompts, give children the freedom to explore a learning goal in their own way. The new study gathered data about the impact of this approach on 3,800 children aged three to eight. It found that guided play can be just as effective as more traditional methods of classroom instruction in the development of key literacy, numeracy and social skills - as well as the acquisition of executive functions (a cluster of essential thinking skills). The findings also suggest that children may master some skills - notably in maths - more effectively through guided play than via other methods. mehr ...

ScienceDaily Intelligence 12.01.2022 MEZ 15:40:00
Remembering faces and names can be improved during sleep
New research has documented the effect reactivating memory during sleep has on face-name learning. The researchers found that people's name recall improved significantly when memories of newly learned face-name associations were reactivated while they were napping. Key to this improvement was uninterrupted deep sleep. mehr ...

ScienceDaily Anthropology 11.01.2022 MEZ 21:37:06
Ancient Mesopotamian discovery transforms knowledge of early farming
Researchers have unearthed the earliest definitive evidence of broomcorn millet (Panicum miliaceum) in ancient Iraq, challenging our understanding of humanity's earliest agricultural practices. mehr ...

ScienceDaily Anthropology 11.01.2022 MEZ 17:20:23
Identification of one of the first multicellular algae thanks to its chlorophyll fossilized for 1 billion years
Researchers have discovered the first in-situ evidence of chlorophyll remnants in a billion-year-old multicellular algal microfossil preserved in shales from the Congo Basin. This discovery has made it possible to unambiguously identify one of the first phototrophic eukaryotic organisms in the fossil record. This research opens up new perspectives in the study of the diversification of eukaryotes within the first ecosystems. mehr ...

ScienceDaily Intelligence 11.01.2022 MEZ 16:00:12
Sleep deprivation increases serotonin 2a receptor response in brain
Researchers have identified the effects of an environmental stressor, sleep deprivation, that could alter the balance controlled by antipsychotic drugs and impact individuals with schizophrenia. mehr ...

ScienceDaily Intelligence 10.01.2022 MEZ 17:41:59
New neural circuits discovered that regulate spatial learning and memory in the brain’s hippocampal formation
A research team has discovered new neural circuits that regulate spatial learning and memory in the brain's hippocampal formation. The team identified novel functional roles of new circuit connections between the venal CA1 region and dorsal CA3 regions of the hippocampus and demonstrated that genetic inactivation of this projection impairs object-related spatial learning and memory, but does not modulate anxiety-related behaviors. mehr ...

ScienceDaily Anthropology 10.01.2022 MEZ 16:32:35
Medieval warhorses were surprisingly small in stature
Medieval warhorses are often depicted as massive and powerful beasts, but in reality many were no more than pony-sized by modern standards, a new study shows. mehr ...

ScienceDaily Anthropology 10.01.2022 MEZ 16:32:20
Rare African script offers clues to the evolution of writing
Writing evolves to become simpler and more efficient, according to a new study based on the analysis of an isolated West African writing system. mehr ...

ScienceDaily Intelligence 07.01.2022 (9 Tage)
How the brain’s blue spot helps us focus our attention
How can we shift from a state of inattentiveness to one of highest attention? The locus coeruleus, literally the 'blue spot,' is a tiny cluster of cells at the base of the brain. As the main source of the neurotransmitter noradrenaline, it helps us control our attentional focus. Synthesizing evidence from animal and human studies, scientists have now developed a novel framework describing the way the blue spot regulates our brain's sensitivity to relevant information in situations requiring attention. mehr ...

ScienceDaily Intelligence 07.01.2022 (9 Tage)
Exercise alters brain chemistry to protect aging synapses
When elderly people stay active, their brains have more of a class of proteins that enhances the connections between neurons to maintain healthy cognition, a new study has found. mehr ...

ScienceDaily Anthropology 06.01.2022 (10 Tage)
Archaeological dig reveals participants in California’s Gold Rush dined on salted Atlantic cod
An excavation at Thompson's Cove in San Francisco shows 'Atlantic cod were imported during the 1850s, likely as a (largely) deboned, dried and salted product from the East Coast of the United States.' The analysis underscores the importance of global maritime trade in northern California during the Gold Rush. mehr ...

ScienceDaily Anthropology 05.01.2022 (11 Tage)
Modern humans developed a more effective protection against oxidative stress
Very few proteins in the body have a change that makes them unique compared to the corresponding proteins in Neanderthals and apes. Researchers have now studied one such protein, glutathione reductase, which protects against oxidative stress. They show that the risk for inflammatory bowel disease and vascular disease is increased several times in people carrying the Neanderthal variant. mehr ...

ScienceDaily Intelligence 05.01.2022 (11 Tage)
Timing of brain injury in pregnancy, birth may impact motor and language outcomes
A new study that mapped the neural connections of newborns with two different kinds of brain injuries found the maps looked very different -- and were linked to significantly different developmental outcomes years later. mehr ...

ScienceDaily Anthropology 05.01.2022 (11 Tage)
Ancient Maya lessons on surviving drought
A new study casts doubt on drought as the driver of ancient Mayan civilization collapse. mehr ...

ScienceDaily Anthropology 04.01.2022 (12 Tage)
Solving the disappearance of bears and lions with ancient DNA
Researchers suggest a change in climate is the likely cause of the mysterious disappearance of ancient lions and bears from parts of North America for a thousand years or more prior to the last Ice Age. mehr ...

ScienceDaily Anthropology 03.01.2022 (13 Tage)
Anthropologists study the energetics of uniquely human subsistence strategies
Among our closest living relatives -- the great apes -- we humans are unique: We have larger brains, reproduce more quickly and have longer life spans. These traits are obviously valuable, but the extra energy required to sustain them is quite significant. So how did we manage to afford them? mehr ...

ScienceDaily Intelligence 29.12.2021 (18 Tage)
Stopping dementia at the nose with combination of rifampicin and resveratrol
Researchers have shown in mice models of Alzheimer's disease, frontotemporal dementia, and dementia with Lewy bodies, that the intranasal administration of rifampicin and resveratrol in combination is safer and improves cognitive function more than rifampicin alone. The research results are expected to lead to the development of safe and effective nasal spray for the prevention of dementia. mehr ...

ScienceDaily Anthropology 29.12.2021 (19 Tage)
Nits on ancient mummies shed light on South American ancestry
For the first time, scientists have recovered ancient human DNA from the sticky glue head lice use to attach their eggs to their host's hair. The new technique was trialled on mummified remains and the DNA has revealed clues about how the people died and the movements of populations thousands of years ago. mehr ...