Over 1,000 aspirants, including 62 from India, have been shortlisted for an ambitious private mission to send four men and women on a one-way trip to Mars in 2024 to establish a More »
Researchers from the University of Tokyo have revamped an old e-paper concept to make an inexpensive handwriting-enabled e-paper well suited to large displays like whiteboards. They describe the e-paper in the Journal of Applied Physics, from AIP Publishing. Traditional ink and paper is convenient for both reading and writing. In e-paper development the writing feature has generally lagged behind. Handwriting-enabled displays mainly show up in the inexpensive, but feature-limited realm of children’s toys, and in the high-end realm of touch-screen e-readers and smart pens.
A team of Japanese researchers has now taken an e-paper technology originally developed in the 1970s and updated it to make a tough and inexpensive display that could be used like a whiteboard when a large writing space is required.
Human emotion can be transferred by technology that stimulates different parts of the hand without making physical contact with your body, a University of Sussex-led study has shown. Sussex scientist Dr Marianna Obrist, Lecturer at the Department of Informatics, has pinpointed how next-generation technologies can stimulate different areas of the hand to convey feelings of, for example, happiness, sadness, excitement or fear.
For example, short, sharp bursts of air to the area around the thumb, index finger and middle part of the palm generate excitement, whereas sad feelings are created by slow and moderate stimulation of the outer palm and the area around the ‘pinky’ finger.
Bacteria have traditionally been viewed as solitary organisms that “hang out on their own,” says molecular biologist Kevin Griffith of the University of Massachusetts Amherst. However, scientists now realize that in fact, bacteria exhibit social behavior within groups. As he explains, “Individual bacteria within a population communicate with members of the group through a process called quorum sensing, where chemical signals and extracellular peptides serve as the language for bacterial communication.” It is not just “social” networking, he adds. Bacterial communities use quorum sensing to control a variety of biomedically relevant biological processes.
In a new paper in a recent early online edition of Molecular Microbiology, he and co-authors Kristina Boguslawski and Patrick Hill describe how they deciphered this bacterial communication to reveal new mechanisms of regulating gene expression in the model bacterium Bacillus subtilis.