Visualization is increasingly important for understanding the structure of communication networks and services on them, but displaying the data associated with very large networks is di cult. There are abundant research problems in visualization metaphors, methods, algorithms and the engineering of scalable interactive systems. This area is being addressed in the AT&T Infolab, a multi-disciplin...

The paper reports a number of experiments with local search algorithms applied to job shop scheduling. The main aim was to get insights into the structure of the underlying conguration space. We consider the disjunctive graph representation where the objective function of job shop scheduling is equal to the length of longest paths. In particular, we analyse the number of longest paths, and our ...

This paper deals with the problem of planning a path for a robot vehicle amidst obstacles. The kinematics of the vehicle being considered are of the unicycle or car{like type, i.e. are subject to nonholonomic constraints. Moreover, the trajectories of the robot are supposed not to exceed a given bound on curvature, that incorporates physical limitations of the allowable minimum turning radius f...

In structured environments found in manufacturing, a few precise measurements are often su cient to recognize and localize modeled objects. Modeled objects can be recognized and localized by enumerating interpretations of the sensed data in terms of model features, and then validating each hypothesized interpretation by computing the optimal pose estimate and associated error. The task of enume...

in december 1953, the us president, general dwight d. eisenhower delivered his “atoms for peace” speech at the united nations' general assembly, which called for the promotion of peaceful uses of nuclear energy under special international agency. this proposal became the starting point for creating the iaea in 1957 and adopting npt in 1968. the atoms for peace initiative established the pr...

the 56th pugwash conference on science and world affairs opened with a key note address by the italian minister of foreign affairs, massimo d’alema, and the un secretary-general ban ki-moon’s message in bari, italy, on 21 october 2008. in the week-long meeting, the participants discussed a wide array of topics related to regional security issues such as the status of nuclear arms control, the r...

introduction: varicocele is considered as a common cause of male infertility. the aim of this study was to evaluate the effects of varicocelectomy on sperm parameters, sperm membrane integrity and sperm nuclear maturity. materials and methods: in this study along with routine semen analysis, hypo-osmotic swelling test (host), and aniline blue staining for assessment of as 45 and 90 days after i...

While the introduction of radioactive tracers in the study of metabolic pathways has been well-documented in clinical thyroidology as early as 1924, the widespread utilization in other clinical specialties has been hampered by slow developments in radiation-detecting devices and in the production of appropriate radiopharmaceuticals, in addition tothe morbid fear of radiation. In the Philippines...

"It is not a wise choice!", this was the reaction of my father when I applied for nuclear medicine residency program 26 years ago. The old retired officer continued that hi-tech nuclear medicine is dependent on multiple advanced sections that may not be easily available especially in the developing countries. Now he is not alive to see that political misconducts have added fuel to the fire. Glo...