Posts Categorized: Archives (2014-2016)

Terahertz wireless technology could bring fiber-optic speeds out of a fiber

Terahertz wireless technology could bring fiber-optic speeds out of a fiber

Hiroshima, Japan — Hiroshima University, the National Institute of Information and Communications Technology, and Panasonic Corporation announced the development of a terahertz (THz) transmitter capable of signal transmission at a per-channel data rate of over ten gigabits per second over multiple channels at around 300 GHz. The aggregate multi-channel data rate exceeds one hundred gigabits per second. The transmitter was implemented as a silicon CMOS integrated circuit, which would have a great advantage for commercialization and consumer use. This technology could open a new frontier in wireless communication with data rates ten times higher than current technology allows. Details of the technology were presented at the “International Solid-State Circuit Conference… Read more

Latest developments on the science of chiral materials discussed at ChiMag2016 Symposium

Latest developments on the science of chiral materials discussed at ChiMag2016 Symposium

The ChiMag 2016 Symposium is to be held from Sunday, Feb. 21 to Wednesday, Feb. 24 at Oriental Hotel Hiroshima in Hiroshima, Japan. The purpose of the symposium is to offer a good opportunity for researchers worldwide pursuing the nature of chiral magnets to discuss and exchange ideas. The main topics for the symposium are as follows: Nonlinear and topological spin textures in chiral magnets Probing spin chirality and crystallographic chirality by electron, neutron, X-ray, muon, and ultrasound beams Dzyaloshinskii-Moriya interaction in crystals with broken chiral symmetry Systematic synthesis of chiral magnetic crystals, including molecular-based, transition-metal, and rare-earth-based crystals Physics of helical and chiral superconductivity The online registration form is… Read more

A clue to generate electric current without energy consumption at room temperature

A clue to generate electric current without energy consumption at room temperature

  A group of researchers in Japan and China identified the requirements for the development of new types of extremely low power consumption electric devices by studying Cr-doped (Sb, Bi)2Te3 thin films. This study has been reported in Nature Communications. At extremely low temperatures, an electric current flows around the edge of the film without energy loss, and under no external magnetic field. This attractive phenomenon is due to the material’s ferromagnetic properties; however, so far, it has been unclear how the material gains this property. For the first time, researchers have revealed the mechanism by which this occurs. “Hopefully, this achievement will lead to the creation of novel materials that… Read more

An alternative TALEN/CRISPR-mediated gene insertion technique described in detail

An alternative TALEN/CRISPR-mediated gene insertion technique described in detail

  A streamlined protocol for an alternative gene insertion method using genome editing technologies, the PITCh (Precise Integration into Target Chromosome) system, has been reported in Nature Protocols by Specially Appointed Lecturer Tetsushi Sakuma, Professor Takashi Yamamoto, Specially Appointed Associate Professor Ken-Ichi T Suzuki, and their colleagues at Hiroshima University, Japan. The PITCh system is more convenient and effective than existing methods for inserting foreign DNA into targeted genomic loci by using genome-editing tools. This new versatile technique can aid the rapid progression of research in fields such as screening of new drug candidates and creating cell or animal models of human diseases. Genome editing is an innovative technique used in genetic… Read more

A Japanese multicenter clinical study on the prevention of stroke recurrence by statin

A Japanese multicenter clinical study on the prevention of stroke recurrence by statin

The results of “The Japan Statin Treatment Against Recurrent Stroke (J-STARS)” study led to the hypothesis that statins reduce the occurrence of strokes due to larger artery atherosclerosis. J-STARS examined whether pravastatin, a traditional statin widely used in the clinic, reduces the recurrence of strokes and respective subtypes in non-cardioembolic stroke patients. The study also examined whether the use of pravastatin favorably impacts the occurrence of other vascular events, and stroke-related functional outcomes were explored. Statins are widely used to reduce cholesterol levels in blood. High cholesterol levels are associated with cardiovascular diseases such as strokes, so statins are thought to be beneficial for stroke prevention. However, these findings are… Read more

New membrane may solve fresh water shortages

New membrane may solve fresh water shortages

  Researchers at Hiroshima University have developed a technology that improves the removal of salt from seawater, a breakthrough that may alleviate the increasing demand for fresh water in some countries. “A global shortage of fresh water is a long-term challenge that mankind faces in this century,” said the director of the ROBUST membrane project, Professor Toshinori Tsuru. Professor Tsuru and his team have designed a new kind of ultra-thin layered membrane that acts as a sieve and separates salt from seawater to produce fresh water, a technique known as reverse osmosis. The membrane is partly made from silicon and overcomes several challenges of existing designs by tolerating the harsh… Read more