Latest News

Chemical in Broccoli Blocks Growth of Prostate Cancer Cells, New Study Shows

Those seeking yet another reason to eat their veggies, take note. Researchers at the University of California, Berkeley, have found that a chemical produced when digesting such greens as broccoli and kale can stifle the growth of human prostate cancer cells.

The findings show that 3,3’-diindolylmethane (DIM), which is obtained by eating cruciferous vegetables in the Brassica genus, acts as a powerful anti-androgen that inhibits the proliferation of human prostate cancer cells in cultur

Assumptions about what holds molecular complexes together have been based on faulty measures

As scientists create molecular complexes to perform increasingly minute operations — such as molecular level switches or memory devices — it is critical that the association forces that hold the molecular components together be accurately understood.

But measurements of association constants are often not accurate, according to an article by Virginia Tech Ph.D. student Jason Jones and chemistry professor Harry W. Gibson, published in May 15, 2003 online issue of the Journal of the America

Critical early-defense trigger in plants found

The gene for an enzyme that is key to natural disease resistance in plants has been discovered by biologists at the Boyce Thompson Institute for Plant Research (BTI) and at Cornell University. The researchers say that by enhancing the activity of the enzyme they might be able to boost natural disease resistance in crop plants without resorting to pesticides or the introduction of non-plant genes.

The research, reported in the latest (May 16) issue of the journal Cell , describes the discov

Brighter Neptune suggests a planetary change of seasons

A progressive increase in the brightness of the planet Neptune suggests that, like Earth, the distant planet has seasons.

Observations of Neptune made during a six-year period with NASA’s Hubble Space Telescope by a group of scientists from the University of Wisconsin-Madison and NASA’s Jet Propulsion Laboratory (JPL) show that the planet is exhibiting a significant increase in brightness. The changes, observed mostly in the planet’s southern hemisphere, show a distinc

Studying real-time seismic activity

A serendipitous discovery by a University of Colorado at Boulder-led team has shown for the first time that satellite signals from the Global Positioning System are a valuable new tool for studying seismic activity.

CU-Boulder Associate Professor Kristine Larson of aerospace engineering sciences said seismic waves from a 7.9 magnitude earthquake in Alaska’s Denali National Park in November 2002 were detected using Global Positioning Satellite, or GPS, receivers as far away as 2,350 mil

Researchers discover common cause for aging and age-related disease

Why do serious diseases such as cancer, Alzheimer’s and Huntington’s mainly hit us in middle age or later? The links between aging and age-related diseases have proved elusive.

In studies of the powerfully informative roundworm, C. elegans, UCSF scientists have discovered that a class of molecules found in the worms and in people can both prolong life in the worm and prevent the harmful accumulation of abnormal proteins that cause a debilitating Huntington’s-like disease. The

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Physics and Astronomy

X-ray satellite XMM-newton sees ‘space clover’ in a new light

Astronomers have discovered enormous circular radio features of unknown origin around some galaxies. Now, new observations of one dubbed the Cloverleaf suggest it was created by clashing groups of galaxies….

Venus has almost no water

A new study may reveal why… Planetary scientists at the University of Colorado Boulder have discovered how Venus, Earth’s scalding and uninhabitable neighbor, became so dry. The new study fills…

Hungry, hungry white dwarfs

… solving the puzzle of stellar metal pollution. Dead stars known as white dwarfs, have a mass like the Sun while being similar in size to Earth. They are common…

Life Sciences and Chemistry

Expanding a lymph node, boosting a vaccine

A biomaterial vaccine enhances and sustains lymph node expansion following vaccination, boosting anti-tumor immunity in an animal model. Each one of us has around 600 lymph nodes (LNs) – small,…

The Clues for Cleaner Water

Pitt, Drexel, and Brookhaven engineers solve the “catalysis vs corrosion” mystery in electrochemical ozone production. Researchers at the University of Pittsburgh and Drexel University in Philadelphia, along with Brookhaven National…

CAR T–cell immunotherapy targets

Pan-cancer analysis uncovers a new class of promising CAR T–cell immunotherapy targets. Scientists at St. Jude Children’s Research Hospital found 156 potential CAR targets across the brain and solid tumors,…

Materials Sciences

Tweaking isotopes sheds light on promising approach to engineer semiconductors

Research led by scientists at the Department of Energy’s Oak Ridge National Laboratory has demonstrated that small changes in the isotopic content of thin semiconductor materials can influence their optical…

Cost-effective, high-capacity, and cyclable lithium-ion battery cathodes

Charge-recharge cycling of lithium-superrich iron oxide, a cost-effective and high-capacity cathode for new-generation lithium-ion batteries, can be greatly improved by doping with readily available mineral elements. The energy capacity and…

Innovation promises to prevent power pole-top fires

Engineers in Australia have found a new way to make power-pole insulators resistant to fire and electrical sparking, promising to prevent dangerous pole-top fires and reduce blackouts. Pole-top fires pose…

Information Technology

Experiment opens door for millions of qubits on one chip

Researchers from the University of Basel and the NCCR SPIN have achieved the first controllable interaction between two hole spin qubits in a conventional silicon transistor. The breakthrough opens up…

Web platform and app aim to improve quality of life for people with Parkinson’s disease

Parkinson’s disease is one of the most prevalent neurodegenerative conditions. It causes motor impairments such as tremors, slow movement, muscle stiffness, and balance problems. The individual course of the disease…

Trotting robots reveal emergence of animal gait transitions

A four-legged robot trained with machine learning by EPFL researchers has learned to avoid falls by spontaneously switching between walking, trotting, and pronking – a milestone for roboticists as well…