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44 articles from PhysOrg

Reactive strip developed to quickly and easily detect and quantify allergens in foods

A team from the Universitat Politècnica de València (UPV), the Universitat de València (UV), and the Centro de Investigación Biomédica en Red sobre Enfermedades Raras (CIBERER) has developed a lateral flow test that identifies and quantifies the level of allergens reliably in food with the help of a smartphone. The work has been published in the journal Biosensors.

Polarity proteins shape efficient 'breathing' pores in grasses

Grasses have "respiratory pores" (called stomata) that open and close to regulate the uptake of carbon dioxide for photosynthesis on the one hand and water loss through transpiration on the other. Unlike many other plants, stomata in grasses form lateral "helper cells." Thanks to these cells, the stomata of grasses can open and close more quickly, which optimizes plant-atmosphere gas exchange and...

Predicting calving problems before insemination

A small percentage of cows will experience problems when calving and breeders would like to know which cows are at risk. Using the vast dataset of the Dutch cattle breeding company CRV, computer scientists at the University of Groningen used artificial intelligence to develop a predictive model that in theory could halve the number of calving problems. They published their results in Preventive...

Scientists investigate potential regolith origin on Uranus' moon Miranda

In a recent study published in The Planetary Science Journal, a pair of researchers led by The Carl Sagan Center at the SETI Institute in California investigated the potential origin for the thick regolith deposits on Uranus' moon, Miranda. The purpose of this study was to determine Miranda's internal structure, most notably its interior heat, which could help determine if Miranda harbors—or...

Humans have been using bear skins for at least 300,000 years, suggests study

Humans have been using bear skins to protect themselves from cold weather for at least 300,000 years. This is suggested by cut marks on the metatarsal and phalanx of a cave bear discovered at the Lower Paleolithic site of Schöningen in Lower Saxony, Germany. This makes it one of the oldest examples of this type in the world.

sPHENIX assembly update: Magnet mapped, detectors prepared

Physicists, engineers, and technicians at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are rounding out the year with key developments to a house-sized particle detector that will begin capturing collision snapshots for the first time next spring.

Can dogs sniff out bovine respiratory disease?

A Texas A&M AgriLife researcher is taking a page out of human disease research to see if dogs might be able to sniff out bovine respiratory disease, BRD, one of the largest health challenges for the feedlot cattle industry.

Some no-till crop rotations on dairy farms could benefit from strategic tillage

Many no-till growers are reluctant to implement any soil disturbance due to concerns about negative impacts on soil health. However, a new study by a team of Penn State researchers suggests that plowing fields once after five years in a crop rotation that includes coverage with cover crops and perennials can maintain soil health and provide other benefits.