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43 articles from ScienceDaily

Fasting-mimicking diet reduces signs of dementia in mice

Cycles of a diet that mimics fasting appear to reduce signs of Alzheimer's in mice genetically engineered to develop the illness, according to a new study. Short cycles of a low-calorie diet that replicates fasting appeared to reduce inflammation and delay cognitive decline in mouse models of Alzheimer's disease; initial data indicates diet's safety in Alzheimer's patients.

The neighbors of the caliph: Archaeologists uncover ancient mosaics on the shore of the Sea of Galilee

With the help of geomagnetic surface surveys and subsequent hands-on digging, an excavation team has revealed new insights into the area in which the caliph's palace of Khirbat al-Minya was built on the shores of the Sea of Galilee. According to these findings, there had already been a settlement occupied by Christian or Jewish inhabitants in the immediate vicinity long before the palace was...

Trees get overheated in a warmer rainforest

The ability of rainforests to store carbon can decrease in pace with climate change. This is due to photosynthesis rates in the leaves of rainforest species falling at higher temperatures and the trees' natural cooling systems failing during droughts. Increased heat threatens especially the species that store most carbon.

Edge waves, continental shelf fueled the 2021 Acapulco Bay tsunami

Trapped inside the shoreline of a bay, the resonant interactions of a tsunami with regular waves can prolong the tsunami disturbance. For the 2021 magnitude 7 Acapulco, Mexico earthquake and tsunami, edge waves in the bay and the short continental shelf also had a surprisingly significant effect on the tsunami's duration, according to a new study.

New research can help electric utilities account for climate change

Researchers have devised a method to determine the impact of climate change on the supply and variability of local renewable energy. An increase in unusual weather patterns related to climate change means the demand for power and the availability of solar, hydro and wind energy can all become more variable.

Catalytic process with lignin could enable 100% sustainable aviation fuel

An underutilized natural resource could be just what the airline industry needs to curb carbon emissions. Researchers report success in using lignin as a path toward a drop-in 100% sustainable aviation fuel. Lignin makes up the rigid parts of the cell walls of plants. Other parts of plants are used for biofuels, but lignin has been largely overlooked because of the difficulties in breaking it down...

Armored worm reveals the ancestry of three major animal groups

Scientists have discovered that a well-preserved fossilized worm dating from 518 million years ago resembles the ancestor of three major groups of living animals. Measuring half-an-inch long, the fossil worm -- named Wufengella and unearthed in China -- was a stubby creature covered in a dense, regularly overlapping array of plates on its back.

Powerful Bragg reflector with ultrahigh refractive index metamaterial

Researchers report the development of ultrahigh refractive index metamaterials which are integrated with a low refractive index polymer producing distributed Bragg reflector (DBR). The highest refractive index in the visible and near-infrared regions was reported. The new technology is applicable to precision semiconductor processes and high-resolution display technology.

Casting shadows on solar cells connected in series

Even small objects, such as dust and leaves, can block sunlight from reaching solar cells, and understanding how the loss of incoming radiation affects power output is essential for optimizing photovoltaic technology. Researchers explore how different shade conditions impact performance of single solar cells and two-cell systems connected in series and parallel. They found that the decrease in...

New findings on the effects of COVID-19 on the colon

Researchers have analyzed the manifestations of COVID-19 in the lungs and colon and pinpointed the differences at a molecular level. Their findings form the basis for the identification of novel biomarkers and the development of new treatment strategies.

Quantum technology reaches unprecedented control over captured light

Researchers in quantum technology have succeeded in developing a technique to control quantum states of light in a three-dimensional cavity. In addition to creating previously known states, the researchers are the first ever to demonstrate the long-sought cubic phase state. The breakthrough is an important step towards efficient error correction in quantum computers.

Diagnosis of a genetic cause in hundreds of people with motor neuron disease could be missed due to 'arbitrary age limits and rules' on genetic testing

Genetic testing for amyotrophic sclerosis (ALS), also called motor neuron disease, is usually restricted to patients with family members also affected by ALS, or patients who do not have a family history but have symptoms starting early, under the age of 40. With the UK's current genetic testing guidelines, many people with ALS who may have a genetic form of their disease would not be offered a...