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36 articles from ScienceDaily

How the Aztecs could improve modern urban farming

Highly intensive production systems with low resource demand are a strategic goal of urban agriculture developers. Research was conducted to determine the extent to which an ancient Aztec agricultural technique could benefit 21st century horticultural needs.

Researchers engineer insulin-producing cells activated by light for diabetes

Researchers have transplanted engineered pancreatic beta cells into diabetic mice, then caused the cells to produce more than two to three times the typical level of insulin by exposing them to light. The light-switchable cells are designed to compensate for the lower insulin production or reduced insulin response found in diabetic individuals.

New printer creates extremely realistic colorful holograms

Researchers have developed a new printer that produces digital 3D holograms with an unprecedented level of detail and realistic color. The new printer could be used to make high-resolution color recreations of objects or scenes for museum displays, architectural models, fine art or advertisements that do not require glasses or special viewing aids.

The secret behind crystals that shrink when heated

Scientists have new experimental evidence and a predictive theory that solves a long-standing materials science mystery: why certain crystalline materials shrink when heated. Their work could have widespread application for matching material properties to specific applications in medicine, electronics, and other fields, and may even provide fresh insight into unconventional superconductors.

Disordered proteins become stable, 'super-sticky' materials

Biomedical engineers have demonstrated that they can create stable materials from engineered disordered proteins by altering the environmental triggers that cause them to undergo phase transitions. This discovery shines a light on previously unexplored behaviors of disordered proteins and allows researchers to create novel materials for applications in drug delivery, tissue engineering,...

Harvesting genes to improve watermelons

An international team of researchers has taken a comprehensive look at the genomes of all seven species of watermelon, creating a resource that could help plant breeders increase the domestic fruit's quality and ability to thrive during an era of climate change.

Gene flow among distantly-related butterfly species

Researchers analyzed the genomes of 20 butterfly species and found evidence that many butterflies -- including distantly related species -- have a surprisingly high amount of gene flow between them. The findings challenge conventional views about species, and indicate that hybridization may be a key process in the emergence of biological diversity.

Engineers develop new way to know liars' intent

Engineering researchers have developed a new approach for detecting a speaker's intent to mislead. The approach's framework, which could be developed to extract opinion from 'fake news,' among other uses, was recently published.

Here's something that will raise your blood pressure

The apelin receptor (APJ) has been presumed to play an important role in the contraction of blood vessels involved in blood pressure regulation. A research team found that APJ was closely associated with hypertension through effects on vascular smooth muscle cells in laboratory mice.

Food waste in tourism is a bigger issue than previously thought

There are major gaps in how food waste in tourism is understood and calculated, according to researchers. Food waste originating from hotels, restaurants and events is recognized and can be estimated and calculated, but as the tourism industry is becoming more and more diverse, so are the sources of its food waste.