نتایج جستجو برای: 13n
تعداد نتایج: 345 فیلتر نتایج به سال:
BACKGROUND Model-independent analysis with B-spline regularization has been used to quantify myocardial blood flow (perfusion) in dynamic contrast-enhanced cardiovascular magnetic resonance (CMR) studies. However, the model-independent approach has not been extensively evaluated to determine how the contrast-to-noise ratio between blood and tissue enhancement affects estimates of myocardial per...
AIM Experimental animal studies suggest that the use of skeletal myoblast in patients with myocardial infarction may result in improved cardiac function. The aim of the study was to assess the feasibility and safety of this therapy in patients with myocardial infarction. METHODS AND RESULTS Twelve patients with old myocardial infarction and ischaemic coronary artery disease underwent treatmen...
نیتروین-13 یک رادیوایزوتوپ پوزیترون دهنده با نیمه عمر 10 دقیقه از اعضای خانواده ی pet استاندارد است. یکی از وییگیهای این رادیوایزوتوپ این است که امکان آزمایشهای مکرر را بر روی موجود زنده ممکن می سازد. نیتروین-13 معمولا به شکل آمونیاک نشاندارشده با نیتروین-13 مورد استفاده قرار می گیرد. یکی از روشهای مناسب برای تولید آمونیاک پرتودهی پروتون به آب خالص توسط شتابدهنده ی سیکلوترون است. به این معنی که...
Though there are in theory linear-time algorithms for computing runs in strings, recently two of the authors implemented an O(n logn) algorithm to compute runs that was based on the Crochemore’s partitioning repetitions algorithm. The algorithm preserved the running complexity of the underlying Crochemore’s algorithm; however, the static memory requirement – already large at 14n integers for a ...
PROOF. Let {Gn} and {Hn} denote monotonie decreasing sequences of open sets which close down upon .Pi and F2 respectively. We may suppose that d and Hi are so chosen that G i # i = 0. Now, by Mullikin's theorem, there is a connected subset of C— C(Gw+27n) which has a limit point in Gn and a limit point in Hn. The closure of such a connected set is a subcontinuum of C which "extends" from Gn to ...
Cyclotron produced isotopes for medical use are classifiable as single photon emitters (201Tl, 123J, ~7Ga), used for planar and tomographic imaging (=SPECT), and as positron emitters (l8F, l~O, 13N, llC) as applied for tomographic organ imaging (=PET). There is a number of generator produced positron emitters. This paper reviews the application in clinical nuclear medicine for cardiology (myoca...
The production of 11C, 13N, 15O from C, N, O, and of 39Cl and 41Ar from Ar by a p(66)Be(49) clinical neutron therapy beam has been measured. The results of these measurements were used to estimate the production of other radionuclides, then to estimate airborne radioactivity in a typical neutron therapy room and radioactivity induced in body tissues during treatment. Only under special circumst...
Let N = pq be an RSA modulus, i.e the product of two large primes p and q. Without loss of generality, we assume that q < p. Morever, throughout this paper we assume that the primes p and q are balanced, in other words, that the bitsizes of the primes are equal so that q < p < 2q. Let e, d be the public and secret exponents satisfying ed ≡ 1 (mod φ(n)) where φ(n) = (p−1)(q−1) is the Euler totie...
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