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51 articles from PhysOrg

How to meet student body diversity goals while still giving parents a say in where their child goes to school

All parents want their children to get the best education possible, so how do school districts allow parents/guardians to have a say in where their child goes to school while still meeting diversity goals for the student body? New research in an upcoming addition of the INFORMS journal Operations Research has a solution, just in time for children to return to school for the 2019-2020 year.

Do those retail apps increase customer engagement and sales in all channels?

Researchers from Texas A&M University published new research in the INFORMS journal Marketing Science, which shows that retailers' branded mobile apps are very effective in increasing customer engagement, increasing sales on multiple levels, not just on the retailer's website, but also in its stores. At the same time, apps increase the rate of returns, although the increase in sales outweighs the...

NASA infrared data reveals rainmaking potential in tropical depression 7

Another Atlantic Ocean basin depression formed while Hurricane Dorian is still wreaking havoc on the Bahamas and affecting the southeastern U.S. Infrared imagery from NASA's Aqua satellite shows that Tropical Depression 7 in the western Gulf of Mexico has developed powerful thunderstorms with heavy rain capabilities. That potential for heavy rainfall includes southern Texas and northeastern...

NASA's IMERG estimates hurricane Dorian's rain

In the early hours of Tuesday, September 3, Hurricane Dorian had been stationary over the island of Grand Bahama for 18 hours, most of the time as a category 5 hurricane. Storm-total rain accumulation over parts of Grand Bahama and Abaco Islands have exceeded 24 inches according to NASA satellite-based estimates.

Research finds a new way to reduce food waste

Pity the poor blemished banana. In a society that equates beauty with quality, the perception that blemished produce is less desirable than its perfect peers contributes to 1.3 billion tons of wasted food a year globally.

Using lasers to study explosions

An explosion is a complex event involving quickly changing temperatures, pressures and chemical concentrations. In a paper in the Journal of Applied Physics a special type of infrared laser, known as a swept-wavelength external cavity quantum cascade laser (swept-ECQCL), is used to study explosions. This versatile instrument has a broad wavelength tuning range that allows the measurement of...

Fragmenting ions and radiation sensitizers

A new study using mass spectrometry is helping piece together what happens when DNA that has been sensitized by the oncology drug 5-fluorouracil is subjected to the ionising radiation used in radiotherapy.

'Catastrophic': Hurricane Dorian parks over the Bahamas

Practically parking over the Bahamas for a day and a half, Hurricane Dorian pounded away at the islands Tuesday in a watery onslaught that devastated thousands of homes, trapped people in attics and crippled hospitals. At least five deaths were reported, with the full extent of the damage far from clear.

At the edge of chaos, powerful new electronics could be created

A phenomenon that is well known from chaos theory was observed in a material for the first time ever, by scientists from the University of Groningen, the Netherlands. A structural transition in the ferroelastic material barium titanate, caused by an increase or decrease in temperature, resembles the periodic doubling seen in non-linear dynamical systems. This 'spatial chaos' in a material was...

Graphene layer enables advance in super-resolution microscopy

Researchers at the University of Göttingen have developed a new method that takes advantage of the unusual properties of graphene to electromagnetically interact with fluorescing (light-emitting) molecules. This method allows scientists to optically measure extremely small distances, in the order of 1 ångström (one ten-billionth of a meter) with high accuracy and reproducibility for the first...

An astonishing parabola trick

Prospective digital data storage devices predominantly rely on novel fundamental magnetic phenomena. The better we understand these phenomena, the better and more energy efficient the memory chips and hard drives we can build. Physicists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and the Helmholtz-Zentrum Berlin (HZB) have now completed the essential fundamental work for future storage...

Biodegradable anti-cancer treatment micro-robot

Professor Hongsoo Choi's research team in the Department of Robotics Engineering & DGIST-ETH Microrobot Research Center (DEMRC) at DGIST (President Young Kuk) succeeded in developing a biodegradable micro-robot that can perform hyperthermia treatment and control drug release. This research can treat cancer cells through hyperthermia and controlled drug release more precisely and systematically,...