منابع مشابه
A Clean, Well-Lighted Place1
he man's the work. Something doesn't come out of nothing, " Edward Hopper once said. This private and introspective man, known for his dry wit and " monumental silences " and for expressing himself " tersely but with weighted exactness in a slow reluctant monotone, " was offering a glimpse into the creative process as it applied to him. Much was made of the sense of isolation and despair in his...
متن کاملLighted stylet tracheal intubation: a review.
Tracheal intubation is older than the recognized history of general anesthesia itself. In the late 18th century, The Royal Humane Society of London used tracheal intubation for resuscitating the near-drowned. Approximately 100 years later, MacEwan (1) performed a digital tracheal intubation in an awake patient before a chloroform and air general endotracheal anesthetic for the resection of a to...
متن کاملLuminance Requirements for Lighted Signage
Light-emitting diode (LED) technology is presently targeted to displace traditional light sources in backlighted signage. The literature shows that brightness and contrast are perhaps the two most important elements of a sign that determine its attention-getting capabilities and its legibility. Presently, there are no luminance standards for signage, and the practice of developing brighter sign...
متن کاملA note on uniquely (nil) clean ring
A ring R is uniquely (nil) clean in case for any $a in R$ there exists a uniquely idempotent $ein R$ such that $a-e$ is invertible (nilpotent). Let $C =(A V W B)$ be the Morita Context ring. We determine conditions under which the rings $A,B$ are uniquely (nil) clean. Moreover we show that the center of a uniquely (nil) clean ring is uniquely (nil) clean.
متن کاملOn the nil-clean matrix over a UFD
In this paper we characterize all $2times 2$ idempotent and nilpotent matrices over an integral domain and then we characterize all $2times 2$ strongly nil-clean matrices over a PID. Also, we determine when a $2times 2$ matrix over a UFD is nil-clean.
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ژورنال
عنوان ژورنال: Emerging Infectious Diseases
سال: 2010
ISSN: 1080-6040,1080-6059
DOI: 10.3201/eid1604.ac1604