Radio-free bacteria.
نویسندگان
چکیده
منابع مشابه
Radio-free bacteria.
In 1956 a food technologist at Oregon State University made a startling discovery: cans of meat that had supposedly been sterilized with gamma radiation contained a thriving organism, subsequently named Deinococcus radiodurans. D. radiodurans has been shown to survive and continue to function after being exposed to radiation doses up to 10 times those that would kill most bacteria. In addition,...
متن کاملFree-free Emission at Low Radio Frequencies
We discuss free-free radio emission from ionized gas in the intergalactic medium. Because the emissivity is proportional to the square of the electron density, the mean background is strongly sensitive to the spatial clumping of free electrons. Using several existing models for the clumping of ionized gas, we find that the expected free-free distortion to the cosmic microwave background (CMB) b...
متن کاملThe Return of Infrastructure-free Radio Proximal Radio
This research brief summarizes our current work on the general theme of "proximal networking." We emphasize two things: (1) The importance of physically close connections that are accessed by intention rather than address; and (2) The importance of a point-to-point radio system to support such interactions. Taken together, they form an agenda for considering an approach to networking that takes...
متن کاملOutput-Conductance Transition-Free Method for Improving Radio-Frequency Linearity of SOI MOSFET Circuits
In this article, a novel concept is introduced to improve the radio frequency (RF) linearity of partially-depleted (PD) silicon-on-insulator (SOI) MOSFET circuits. The transition due to the non-zero body resistance (RBody) in output conductance of PD SOI devices leads to linearity degradation. A relation for RBody is defined to eliminate the transition and a method to obtain transition-free c...
متن کاملFtsZ Placement in Nucleoid-Free Bacteria
We describe the placement of the cytoplasmic FtsZ protein, an essential component of the division septum, in nucleoid-free Escherichia coli maxicells. The absence of the nucleoid is accompanied in maxicells by degradation of the SlmA protein. This protein, together with the nucleoid, prevents the placement of the septum in the regions occupied by the chromosome by a mechanism called nucleoid oc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 2000
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.108-a208