Highly Pathogenic Avian Flu, Japan

Highly Pathogenic Avian Flu, Japa

Allotriophagia of A Bundle of Dried Reeds, Sudden Death, and Colon Cancer: A Case Report

Introduction: Epilepsy patients sometimes exhibit abnormal behavior, such as allotriophagia. We experienced a case of allotriophagia of dried reeds, which resulted in massive vomitings and sudden death.Presentation of case: A 69-year-old man died after vomitings of a large amount of bloody solution. Autopsy revealed that sharp edge of a piece of dried reeds penetrated the whole layer of the colon at the oral edge of the colon cancer.Conclusion: A bundle of dried reeds stuck in the cancerous ulcer in the colon and induced massive bleeding

Production of overdense plasmas by launching 2,45 GHz electron cyclotron waves in a helical device

For production of low temperature plasmas with low collisionality, 2.45GHz microwave power up to 20kW is injected perpendicularly to the toroidal field at very low toroidal field BtComment: 12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France

Upper crustal structure beneath the Ongul Island, East Antarctica

Two explosion seismic experiments were conducted in 1980 by the 21st Japanese Antarctic Research Expedition (JARE-21) to reveal the velocity structure beneath the Ongul Islands, East Antarctica. In one experiment eleven stations were established along a line of 5.2 km long at intervals of about 0.5 km on the outcrops on East and West Ongul Islands and two explosions of 100 and 80 kg were fired at the bottom of the sea. The other smaller-scale experiment was made on East Ongul Island to reveal the structure shallower than that obtained by the above-mentioned experiment. Five shots were fired and the seismic waves were observed at eight stations along two lines of 0.7 and 0.9 km long respectively. In both experiments direct waves were clearly recorded at all the stations as first arrivals. The mean apparent velocity and the mean average velocity of P-waves are 6.19±0.11 and 5.74±0.88 km/s, respectively. The obtained velocity in the ice-free area of the Ongul Islands is nearly the same as the velocities under the ice sheet in East Antarctica hitherto obtained by the research expeditions of the United States, USSR and Japan. The sedimentary layer with a velocity less than 5.5 km/s does not exist. Clear later arrivals with large amplitude were also detected at all the stations that ranged from 0.1 to 5.2 km from the shot point. The mean apparent velocity and the mean average velocity were 2.84±0.03 and 2.94±0.37 km/s, respectively. These later arrivals are presumably Rayleigh waves

Dusty Plasmas in Supercritical Carbon Dioxide

Dusty plasmas, which are systems comprising plasmas and dust particles, have emerged in various fields such as astrophysics and semiconductor processes. The fine particles possibly form ordered structures, namely, plasma crystals, which have been extensively studied as a model to observe statistical phenomena. However, the structures of the plasma crystals in ground-based experiments are two-dimensional (2D) because of the anisotropy induced by gravity. Microgravity experiments successfully provided opportunities to observe the novel phenomena hidden by gravity. The dusty plasmas generated in supercritical fluids (SCFs) are proposed herein as a means for realizing a pseudo-microgravity environment for plasma crystals. SCF has a high and controllable density; therefore, the particles in SCF can experience pseudo-microgravity conditions with the aid of buoyancy. In this chapter, a study on the particle charging and the formation of the plasma crystals in supercritical CO2, the realization of a pseudo-microgravity environment, and the outlook for the dusty plasmas in SCF are introduced. Our studies on dusty plasmas in SCF not only provide the pseudo-microgravity conditions but also open a novel field of strongly coupled plasmas because of the properties of media