منابع مشابه
“What goes round comes round”
Soon after the discovery of x-rays by Roentgen, radioactivity by Becquerel, and radium by the Curies, it was concluded that x-rays could not only be used for diagnostic purposes but also for therapy [1,2]. In the early years of radiation therapy, physicians had little understanding or knowledge of the physical nature and biological effects of radiation, the delivered doses were not certain, the...
متن کاملConvex-Round and Concave-Round Graphs
We introduce two new classes of graphs which we call convex-round, respectively concave-round graphs. Convex-round (concave-round) graphs are those graphs whose vertices can be circularly enumerated so that the (closed) neighborhood of each vertex forms an interval in the enumeration. Hence the two classes transform into each other by taking complements. We show that both classes of graphs have...
متن کاملRound and round we go: sedation -- what is it, who does it, and have we made things safer for children?
In this issue of Pediatric Anesthesia several papers and commentaries authored by anesthesiologists and nonanesthesiologists describe different perspectives regarding sedation ⁄ analgesia for children in the UK and the USA. I will provide historical perspectives from the USA and then examine these reports to see how they compare with current USA practice. I had the good fortune of being the co-...
متن کاملCryptanalysis of some first round CAESAR candidates
ΑΕS _ CMCCv₁, ΑVΑLΑNCHEv₁, CLΟCv₁, and SILCv₁ are four candidates of the first round of CAESAR. CLΟCv₁ is presented in FSE 2014 and SILCv₁ is designed upon it with the aim of optimizing the hardware implementation cost. In this paper, structural weaknesses of these candidates are studied. We present distinguishing attacks against ΑES _ CMCCv₁ with the complexity of two queries and the success ...
متن کاملDemsoplastic Small Round Cell Tumor:a Diagnostic and Therapeutic Dilemma
Desmoplastic small round cell tumor (DSCRT) is a rare variant of sarcoma with a highly aggressive behavior. It usually affects abdominal cavity and has a male predominance. Its correct diagnosis and treatment is sophisticated and requires an experienced multidisciplinary team. Hereby we present a 25 yrold man from Kerman Province in 2013 with abdominal mass and ascites who underwent sonograghy ...
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ژورنال
عنوان ژورنال: European Journal of Physics
سال: 2018
ISSN: 0143-0807,1361-6404
DOI: 10.1088/1361-6404/aaee2c