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Nagoya University researchers say they have designed a laser diode that emits the shortest-wavelength ultraviolet light to-date, with potential applications in disinfection, dermatology, and DNA analyses.
Few singers reach their sunset years with the same voice they had in younger days. Songbirds are no different. New research reveals that elderly swamp sparrows don't sound quite like they used to -- nor do they strike the same fear in other males who may be listening in. Humans are remarkably good at guessing a person's age by their voice. But this is the first time the phenomenon has been demonstrated in wild animals.
McMaster University researchers surveyed the data of patients of Hamilton's two hospital systems over nine years and found 52 with low Vitamin C levels. This included 13 patients who could be diagnosed as having scurvy, and an additional 39 who tested positive for scurvy but did not have documented symptoms.
In an unprecedented pan-cancer analysis of whole genomes, researchers at the Ontario Institute for Cancer Research (OICR) have discovered new regions of non-coding DNA that, when altered, may lead to cancer growth and progression.
What makes for an endangered species classification isn't always obvious.
Faking your emotions at work to appear more positive likely does more harm than good, according to a University of Arizona researcher. Allison Gabriel with the Eller College of Management says those who try to be genuinely positive with their co-workers reap 'significant benefits.'
Years of observational studies suggest that prosecutors' race and class biases are among the primary drivers for disparities in criminal justice. Recent University of Arizona-led research indicates otherwise.
When NASA's Aqua satellite passed over the Southern Pacific Ocean it gathered water vapor data that provided information about the intensity of Tropical Cyclone Tino.
The lungs and placentas of fetuses in the womb -- as young as 11 weeks after conception -- already show a bacterial microbiome signature, which suggests that bacteria may colonize the lungs well before birth. This first-time finding deepens the mystery of how the microbes or microbial products reach those organs before birth and what role they play in normal lung and immune system development.
Observations have shown that stellar black holes typically have masses of about ten times that of the Sun. Recently, Chinese astronomers claimed to have discovered a black hole as massive as 70 solar masses, which, if confirmed, would challenge the current view of stellar evolution. Astronomers from the Universities of Erlangen-Nürnberg and Potsdam discovered that it may not necessarily be a black hole at all, but possibly a massive neutron star or an 'ordinary' star.
UVA Engineering computer science professor Jack W. Davidson has been named an Institute of Electrical and Electronics Engineers Fellow in recognition of his contributions to compilers, computer security and computer science education.
The Association for Computing Machinery has named Matthew B. Dwyer, a University of Virginia professor of computer science, a fellow. Fellowships are conferred to association members for technological accomplishments that help define the digital age and improve professional and personal lives. Association for Computing Machinery Fellows comprise an elite group that represents less than 1% of the association's global membership.
In 2017, a massive new region of magnetic field erupted on the sun's surface next to an existing sunspot. The powerful collision of magnetic energy produced a series of solar flares, causing turbulent space weather conditions at Earth. Scientists have now pinpointed for the first time exactly when and where the explosion released the energy that heated spewing plasma to energies equivalent to 1 billion degrees in temperature.
A new study from Brown researchers finds that rewards improve performance on a visual perceptual task only if participants sleep after training.
Traditional methods of vacuum suction and previous vacuum suction devices cannot maintain suction on rough surfaces due to vacuum leakage, which leads to suction failure. Researchers Xin Li and Kaige Shi developed a zero-pressure difference method to enhance the development of vacuum suction units. Their method overcame leakage limitations by using a high-speed rotating water ring between the surface and suction cup to maintain the vacuum. They discuss their work in Physics of Fluids.
A new study led by researchers at Beth Israel Deaconess Medical Center reveals that while critical care outcomes in ICUs steadily improved over a decade at hospitals with few minority patients, ICUs with a more diverse patient population did not progress comparably.
Researchers from Dartmouth and the Massachusetts Institute of Technology (MIT) have developed an original approach to flight scheduling that, if implemented, could result in a significant increase in profits for airlines and more flights that align with passengers' preferences. The approach is presented in a paper, 'Airline Timetable Development and Fleet Assignment Incorporating Passenger Choice,' recently published in Transportation Science, the leading journal in the field of transportation analysis.
Organic molecules with atoms of the semi-metal boron are important building blocks for synthesis products to produce drugs and agricultural chemicals. However, the conversion of substances commonly used in industry often results in the loss of the valuable boron unit, which can replace another atom in a molecule. Chemists at Münster University now introduce carbon-carbon couplings in which the boron atom is retained. The study has been published in the journal Chem.
How long has it been since you logged onto a Web site and you were prompted to decide whether to opt out of 'cookies' that the site told you will enhance your online experience? Minutes? Hours?
A CALCR cell found in mice may stop feeding without subsequential nauseating effects, as well as influence the long term intake of food.