Research

'Improved' wireless communication systems come closer to reality

'Improved' wireless communication systems come closer to reality

A team of scientists has paved the way for ultrafast and reconfigurable on-chip wireless communication systems with unmatched advantages in compactness, low power consumption and low fabrication complexity.

Researchers from the University of Sydney made a breakthrough achieving radio frequency signal control at sub-nanosecond time scales on a chip-scale optical device.

Radio frequency (RF) is a particular range of electromagnetic wave frequencies, widely used for communications and radar signals. The work should impact the current wireless revolution.

Satellite galaxies at edge of Milky Way coexist with dark matter

Satellite galaxies at edge of Milky Way coexist with dark matter

A new research has ruled out a challenge to the accepted standard model of the universe and theory of how galaxies form by shedding new light on a problematic structure.

The vast polar structure, a plane of satellite galaxies at the poles of the Milky Way, is at the center of a tug-of-war between scientists who disagree about the existence of mysterious dark matter, the invisible substance that, according to some scientists, comprises 85 percent of the mass of the universe.

Now, a method to measure potentially damaging cigarette smoke radicals

Now, a method to measure potentially damaging cigarette smoke radicals

A team of researchers has come up with a method for measuring free radicals, which are atoms or groups of atoms with unpaired electrons thought to be partly responsible for making smokers sick, and this could help improve the understanding of the relationship between these substances and health.

Cigarette smoking is the leading preventable cause of death in the U.S., according to the Centers for Disease Control and Prevention. Understanding why is a challenge, given that cigarette smoke is a complex mixture of more than 7,000 compounds.

Common sanitisation practices for lettuce may not be sufficient

Common sanitisation practices for lettuce may not be sufficient

You may want to keep your plate devoid of romaine lettuce as a recent study has suggested that common sanitisation practises may not remove all the bacteria present from the crisp veggie.

The Purdue University study shows that the bacteria Listeria monocytogenes can live inside the tissue of romaine lettuce, suggesting that conventional post-harvest sanitization practices might not be sufficient to kill the potentially lethal pathogen.

Here`s how birds of a feather communicate while flocking together

Here`s how birds of a feather communicate while flocking together

A team of researchers has shed some light on how flying birds communicate with each other.

Zebra finches are social songbirds that use distance calls to establish contact with one another, similar to the way humans use speech to communicate.

Although it has been demonstrated that these birds can determine the identity of a caller as far away as 256 meters (or about 830 feet), it is not clear how their brain extracts this information from the call, which becomes degraded and loses intensity relative to the background noise as it travels through the environment.

Software-based system can help determine cause of stroke

Software-based system can help determine cause of stroke

Determining the cause of an ischemic stroke is critical to prevent a second one and now, a new software-based system has offered hope.

Investigators at the Athinoula A. Martinos Center for Biomedical Imaging at the Massachusetts General Hospital (MGH) and the MGH Stroke Service have developed a software package that provides evidence-based, automated support for diagnosing the cause of stroke.

Now, tracing chemicals from fast-food wrappers in body possible

Now, tracing chemicals from fast-food wrappers in body possible

A team of researchers has come up with a technique that has made tracing hazardous chemicals from fast-food wrappers in the body possible.

The University of Alabama and the University of Notre Dame scientists have developed a new method that enables researchers to radiolabel three forms of perfluorinated and polyfluorinated alkyl substances and track the fate of these chemicals when they enter the body.

Just 100 grams of protein daily reduces heart disease, cancer risk in old age: study

Just 100 grams of protein daily reduces heart disease, cancer risk in old age: study

For a longer life, eat higher proportion of carbohydrates - grains, pulses, vegetables, sweet potato - and about 100 grams of protein in middle-age daily to cut the chances of heart disease, cancer and other diseases in old age, suggests a study.

According to researchers, diet comprising 80 percent carbohydrates - mainly vegetables, especially sweet potato, 10 percent protein - fish and soy and 10 percent fat - is thought to contribute to their longevity.

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