PRITAM BISWAS

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Hawking: Black holes store information

<b>Black holes preserve information about the stuff that falls into them, according to Prof Stephen Hawking.</b><p>Physicists have long argued about what happens to information about the physical state of things that are swallowed up by black holes.<p>This information was thought to be destroyed, but it turned …

Anti-thalidomide hero Frances Oldham Kelsey dies at 101

<b>Frances Oldham Kelsey, the Canadian doctor who played a central role in preventing the drug thalidomide being distributed in the US, has died at 101.</b><p>She refused to approve it while working for the US drug agency in the 1960s.<p>It was later found that thalidomide - prescribed to pregnant women to ease …

Cave paintings change ideas about the origin of art

<b>Scientists have identified some of the earliest cave paintings produced by humans.</b><p>The artworks are in a rural area on the Indonesian Island of Sulawesi.<p>Until now, paintings this old had been confirmed in caves only in Western Europe.<p>Researchers tell the journal Nature that the Indonesian discovery …

'Artificial retina' could detect sub-atomic particles

<b>The human eye has inspired physicists to create a processor that can analyse sub-atomic particle collisions 400 times faster than currently possible.</b><p>In these collisions, protons - ordinary matter - are smashed together at close to light speeds.<p>These powerful smash-ups could yield new particles and …

A 100-year-old drug corrects autistic social behaviors in lab tests

Suramin was developed to treat African sleeping sickness, but results in mice might lead to new therapies for autism<p>Old drugs can sometimes yield surprising results. A well-known diabetes pill called Metformin, for instance, is now being used to treat certain cancers. And Thalidomide, a drug used …

Left Brain vs. Right: It's a Myth, Research Finds

It's the foundation of myriad personality assessment tests, self-motivation books and team-building exercises – and it's all bunk.<p>Popular culture …

The Brain

Suspended-animation trials to begin on humans

This month, the world's first attempts at placing humans in suspended animation using a new technique will take place at the UPMC Presbyterian Hospital in Pittsburgh, Pennsylvania -- not for space travel, but to save lives.<p>The technique will initially be used on 10 patients whose wounds would …

Pigs

Space-Grown Crystals May Shed Light On Huntington's Disease (VIDEO)

Scientists hope space-grown crystals of the protein behind Huntington's disease could help them better understand the deadly neurodegenerative disorder.<p>A novel experiment to study the so-called Huntingtin protein arrived at its orbital laboratory on the International Space Station on April 20 along …

Twenty Years of Alzheimer’s Research May Have Focused on the Wrong Protein

Most researchers think the disease is caused by the build-up of beta amyloid. But over 100 drugs targeting it have failed. Have they been focusing on …

Everything You Need To Know About Uterus Transplants

Most women have probably cursed their pain-inflicting uteruses at least once in their menstrual histories. But an increasing number of women who don’t have them—either because they were born without or had them previously removed—are going to great lengths to obtain new ones. In mid-January, the …

Self-Assembling Molecules Like These May Have Sparked Life on Earth

For Nicholas Hud, a chemist at the Georgia Institute of Technology, the turning point came in July of 2012 when two of his students rushed into his …

Why I want a microchip implant

With a chip under your skin, you can do everything from unlocking doors to starting motorbikes, says Frank Swain, who has been trying to get his own implant.<p>A few years ago, I perched on the edge of my bed in a tiny flat, breathing in a cloud of acetone fumes, using a scalpel to pick at the corner …

San Francisco

Building computer brains that can reason like humans

What if a computer chip could think – and react – just like a human? IBM’s Cognitive Computing Group believes such a breakthrough is just around the corner.<p>Computing has developed at an amazing pace over the last few decades, but even today’s computers are essentially glorified calculators, says Dr …

Quantum Computing

Can Organisms Evolve The Ability To Evolve?

A new study finds that natural selection selected for flexibility in one bacteria species.<p>Can things evolve to evolve? Okay, so that sounds like a cheesy line from a self-help book, but what I'm talking about here is actual biological evolution. Depending on the situation, evolution is obviously …

APOD: A Rare Hybrid Solar Eclipse (2013 Nov 03) Image Credit & Copyright: Left: Fred Espenak - Right: Stephan Heinsius http://apod.nasa.gov/apod/ap131103.html Explanation: A spectacular geocentric celestial event of 2005 was a rare hybrid eclipse of the Sun - a total or an annular eclipse could be seen depending on the observer's location. For Fred Espenak, aboard a gently swaying ship within the middle of the Moon's shadow track about 2,200 kilometers west of the Galapagos, the eclipse was total, the lunar silhouette exactly covering the bright solar disk for a few brief moments. His camera captured a picture of totality revealing the extensive solar corona and prominences rising above the Sun's edge. But for Stephan Heinsius, near the end of the shadow track at Penonome Airfield, Panama, the Moon's apparent size had shrunk enough to create an annular eclipse, showing a complete annulus of the Sun's bright disk as a dramatic ring of fire. Pictures from the two locations are compared above. How rare is such a hybrid eclipse? Calculations show that during the 21st century just 3.1% (7 out of 224) of solar eclipses are hybrid while hybrids comprise about 5% of all solar eclipses over the period 2000 BC to AD 3000. Today's hybrid solar eclipse is most widely visible beyond the central shadow track as a brief partial eclipse from northeastern Americas through Africa, and along the track in an annular phase for only the first 15 seconds. http://apod.nasa.gov/apod/fap/image/0505/espenak_tse2005_1.jpg http://apod.nasa.gov/apod/fap/image/0505/Heinsius_Panama_tse2005_1.jpg Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131103

The hybrid solar eclipse – in pictures

A rare hybrid solar eclipse has taken place, switching between a total eclipse (where the moon completely covers the sun) and an annular one (where a halo of sunlight is visible around the moon)

Oral Bacteria Define Ethnicities

Each person is endowed with a unique set of characteristics that define him or her, with fingerprints and eye scans being the most commonly used …

Why Engineers Want To Put B Vitamins In 3-D Printers

Almost every day it seems there's a new use for 3-D printing.<p>In medicine, the printers are already making prosthetic hands, hearing aid cases and parts of human ears.<p>But the materials used in some 3-D printing processes could be toxic to humans, particularly if the products get inside the body. So …

Introduction to Microbiology Culture Techniques

Microbiology

IUPHAR-DB Target Families Redirect

This page has been moved. Target family pages are now available on the IUPHAR/BPS Guide to PHARMACOLOGY site.<p>You will shortly be redirected to the …

Why Depression Ruins Your Memory

It can impede the brain's ability to encode different, but very similar, memories, a process called pattern separation.<p>Depression has been linked to memory impairment, but being depressed doesn't affect all types of memory uniformly. A new study suggests that people with depression can remember the …

Rhodium - Periodic Table of Videos

5 Gross But Cool Vintage Anatomy Drawings

There should be more physician-artists in the world.<p>Before photography was developed, doctors could only depend on each other's written descriptions and drawings to communicate what to look for in a scarlet fever rash, or how consumption affects the lungs. So a number of multi-talented physicians …

Bad feelings make stronger memories - Futurity

Negative emotions, such as fear, can enhance your memories for places, a new study confirms. …

How high blood sugar throws off heart rhythm - Futurity

Scientists have identified a biological pathway—activated by abnormally high blood sugar levels—that causes irregular heartbeats. …

Statins may reduce dementia by a third

Cholesterol-lowering drugs taken by millions of British patients can also help to reduce the risk of dementia by almost a third, research has found.<p>A major review of 16 studies found that taking statins for more than a year appeared to safeguard the brain from Alzheimer’s disease and other forms of …

Puberty Is Coming Earlier, But That Doesn't Mean Sex Ed Is

For kids growing up in the San Francisco Bay Area, there's a standard introduction to puberty at many schools: an educational play called <i>Nightmare on Puberty Street.</i><p>It's a fictional play, and in it, character Natalie raps about how quickly her body is growing — and how her classmates call her names.<p>…

Infertile woman gives birth after new method allows her to regrow eggs

A new fertility treatment has allowed a woman in Japan to give birth, even though she'd stopped producing eggs around four years prior. The new treatment is being called "in vitro activation," and it may be able to let women who have become infertile because of a condition called primary ovarian …

The FDA Has Approved The First Artificial Pancreas

An easier way for diabetics to control their insulin intake<p>The U.S. Food and Drug Administration has approved its first "artificial pancreas" to automatically control the insulin levels of diabetics. (You know, before the shutdown furloughed almost half of its staff.)<p>The hormone insulin controls …

Diabetes