Chinese President Jiang Zemin outlines China's commitment to global scientific collaboration, highlighting initiatives such as Sino-Israeli and Sino-Australian scientific collaboration funds. He also calls for curriculum reform in China's education system and acknowledges the country's brain drain, with Chinese students studying abroad.
Researchers at Cornell University have discovered how a hyperactive form of the molecular switch Cdc42 disrupts orderly cell growth, leading to cancer. The team found that Cdc42 increases protein shuttling, overstimulating cellular activities and causing hallmarks of cancer cells.
A University of Florida study found that most Americans consider mid-range body sizes attractive and socially acceptable. In contrast to the idealized thin figure often seen in media, participants preferred a range of builds from slender to rounded. As people age, they become more tolerant of varying body sizes.
Computer models at UW-Madison use genetic algorithms to optimize engine performance, increasing fuel efficiency while reducing pollution. The results demonstrate significant improvements in nitric oxide and soot emissions, as well as a 15% reduction in fuel consumption.
A new 25-minute test distinguishes between different types of schizophrenia by measuring people's response to a sudden loud noise. Early onset schizophrenia has more severe information processing deficits and is less responsive to current treatments.
Two studies found a decrease in respiratory illnesses among school-age children after improved air quality. Lung function continued to grow in adolescents despite cessation of growth in height, with males showing greater gains. A new diagnostic test for asthma in young children was also developed.
Direct images of aligned magnetic domains on both sides of an interface reveal the phenomenon of 'pinning' in layered magnetic structures. The researchers used photoemission electron microscopy to distinguish between layers with different chemical elements, demonstrating that exchange bias is an intrinsic property of the interface.
A study found that people with a particular variation in the serotonin transporter gene (5-HTT) showed a greater fear response during a laboratory experiment. This variation is linked to increasing regulation of serotonin levels in the brain, which may play a role in anxiety disorders.
Researchers found that telomerase expression can activate the c-myc oncogene, a hallmark of cancer cells. This raises concerns about using telomerase in human tissue culture cells for therapeutic purposes.
Researchers from Arizona State University, IBM Almaden Research Labs, and Lawrence Berkeley Laboratory have confirmed the alignment between electron spins in ferromagnets and anti-ferromagnets is colinear. This finding improves understanding of exchange bias, a phenomenon useful for controlling magnetization in magnetic disk storage.
The article describes how novel human genes can be found using data mining techniques on the Internet. Researchers identified putative human genes related to peptide transporter proteins, which are essential for drug absorption and distribution.
Researchers discovered a new approach to treating schizophrenia by creating medications that only last intermittently in the brain, reducing prominent side effects. This breakthrough opens doors to significant changes in how schizophrenia is treated and could lead to more effective medications with better tolerability.
NASA's X-34 and X-40A vehicles will be showcased at the Reusable Launch Vehicle (RLV) Technology Exposition, highlighting the X-37 Project and its related technologies. The event will provide an opportunity for industry representatives to learn about the program and its benefits.