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Science News for November 6, 2002


Keeping information secure with noisy light

Researchers have developed a high-speed encryption protocol using noisy light to secure information, promising unconditionally secure, fast, easy-to-manage, and cost-efficient security. The Northwestern method transmits encrypted data at 250 megabits per second, outpacing conventional cryptography and existing quantum methods.

Scientists use microscope to view magnetism at atomic level

Physicists have developed a technique to measure magnetism at the atomic scale using a scanning tunneling microscope, enabling potential applications in futuristic electronic and magnetic devices. This breakthrough could lead to advancements in spintronics, quantum computing, and more powerful hard drives.

SourceOhio University·JournalPhysical Review Letters·DateNov 6, 2002

Genes, neurons, and the Internet found to have some identical organizing principles

Researchers discovered identical organizing principles in genetic, neural, and food networks, revealing potential strategies for information processing and filtering noise. The study's findings have significant implications for understanding complex systems and could lead to breakthroughs in fields like medicine and electronics.

AIDS/syringe exchange study

A recent study led by UC Davis finds that syringe-exchange programs significantly reduce HIV risk behavior among injecting drug users. The research shows a two-fold to six-fold reduction in risk behaviors for users with and without access to clean syringes, respectively.

SourceUniversity of California - Davis Health·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateNov 6, 2002