physics

by KeAi Communications Co. Credit: Peishan Shao, et al Mechanoluminescence (ML) located within the near infrared (NIR) spectral range may hold promising applications in in-situ and real-time biomechanical imaging. This is due to the better spatial resolution and penetration depth of the biological tissues, lower optical loss, and the avoidance of autofluorescence. Historically, rare earth … Read more

(A)Principal component analysis of metabolites identified in receptacles of control samples injected with pFRN-empty (gray dots) against three transgenic fruit pools injected with pFRN-FanCXE1 (green, blue and red dots). (B) Relative concentrations of various esters and alcohols in transgenic and control receptacles. Credit: Horticulture Research Strawberries owe their distinctive flavor to a complex mixture of … Read more

Butterfly populations in Catalonia in northern Spain are better than their UK counterparts at regulating their body temperature by basking in the sunshine, but rising global temperatures due to climate change may put Spanish butterflies at greater risk of extinction. Credit: Andrew Bladon Butterfly populations in Catalonia in northern Spain are better than their UK … Read more

Bronze tomato ripening stages (MG, mature green; B, breaker; B + 7, breaker +7 days; R, ripe); b) Antioxidant capacity of methanolic extracts from fruits measured by TEAC assay; c) Total content of polyphenols measured by Folin–Ciocalteu; d) Soluble solutes, defined by the Brix degrees, measured in aqueous extracts from fruits at the four ripening stages. Significance … Read more

Comparison of leaf metabolites between graft combinations and between treatments, i.e. fruiting and fruit removed. Credit: Horticulture Research Grafting melon (Cucumis melon L.) onto pumpkin (Cucurbita maxima Duch. × Cucurbita moschata Duch.) rootstock is a method of improving yield but is challenged by the scion-rootstock incompatibility leading to plant collapse attributed to various physiological and … Read more

CHARA Array false-color images of RW Cephei from December 2022 (left) and Jul 2023 (right). The patchy appearance results from dust created by a huge ejection from the star. The star is huge but it is so far away that it appears about one million times smaller than the full moon in the sky. Credit: … Read more

In each water sample, researchers examined nitrate isotopes, which are unique, allowing the team to trace the water sample back to where it originated. Credit: University of Texas at Arlington Four decades of changes in land use in central Costa Rica have increased nitrate concentrations in drinking water, in some areas to potentially unsafe levels, … Read more

Credit: Marc-Olivier Beausoleil Using data on four species of Darwin’s finches on the Galápagos Islands, researchers led by McGill University have confirmed a long-standing hypothesis that species diversity evolves through adaptation to different resources. Evolutionary biologists have long suspected that the diversification of a single species into multiple descendent species—that is, an “adaptive radiation”—is the … Read more

Illustration of luminescence-based multi-point temperature determination inside an opaque packed bed loaded with 6 color-marked spheres coated with luminescent materials. Left, right: examples of simulated luminescence images when only a single sphere is presented at two different locations. Credit: Guangtao Xuan, Otto-von-Guericke-Universität Magdeburg A team of researchers has proposed an indirect optical method for determining … Read more

Credit: Markus Spiske from Pexels Under the Biden administration, there has been an effort to do a better job of measuring public and private environmental impacts. The federal government is trying to develop ways of improving the measurement of environmental costs and benefits of public investments and is also trying to stimulate the development of … Read more