Katrina M. Hanna

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Choosing the best-performing server for a particular client from a group of replicated proxies is a difficult task. We offer a novel, two-step technique for server selection that chooses a small subset of five servers, and isolates testing to that subset for ten days. We present an empirical evaluation of both our method and previously proposed metrics(More)
  • K M Hanna
  • Image--the journal of nursing scholarship
  • 1993
An experimental study was conducted to test the effect of a nurse-client transactional intervention (King, 1981) on 51 female adolescents' oral contraceptive adherence. Subjects were randomly assigned to a control or an experimental group. Both groups experienced the clinics' contraceptive teaching. Subjects in the experimental group experienced the(More)
We propose and evaluate a mobile, peer-to-peer Information Retrieval system. Such a system can, for example, support medical care in a disaster by allowing access to a large collections of medical literature. In our system, documents in a collection are replicated in an overlapping manner at mobile peers. This provides resilience in the face of node(More)
Three types of microscopic nucleus-nucleus optical potentials are constructed using three patterns for their real and imaginary parts. Two of these patterns are the real V H and imaginary W H parts of the potential which reproduces the high-energy amplitude of scattering in the microscopic Glauber-Sitenko theory. Another template V DF is calculated within(More)
Calculations are made of the K+C, Ca differential elastic scattering cross sections at the beam momenta 0.635, 0.715, and 0.8 GeV/c. To this end the microscopic optical potential derived in the high-energy approximation was used where existing data on the kaon-nucleon amplitude and on the point-like density distributions of target-nuclei were utilized. The(More)
X iv :n uc lth /0 51 10 37 v 1 1 5 N ov 2 00 5 EXCITATION OF NUCLEAR COLLECTIVE STATES BY HEAVY IONS WITHIN THE MODEL OF SEMI-MICROSCOPIC OPTICAL POTENTIAL K.M. Hanna1, K.V Lukyanov2, V.K. Lukyanov2, Z.Metawei3 B. S lowi nski4,5, E.V. Zemlyanaya2 1Math. and Theor. Phys. Dept., NRC, Atomi Energy Authority, Cairo, Egypt 2Joint Institute for Nu lear Resear h,(More)
We show how dividing a database and replicating documents and indicies in an overlapping manner provides resilience in the face of node failures, malicious attacks, censorship attempts, and network partitions. This property of fault tolerance is beneficial for a wide range of scenarios, and we examine it in the context of two applications: an IR collection(More)
The microscopic nucleus-nucleus optical potential is constructed basing on two patterns for real and imaginary parts, each calculated in the framework of microscopic models and multiplied by two normalizing factors, the free parameters, fitted to experimental data. The first supplementary model yields the real and imaginary templates for our potential, and(More)