For many supervised learning tasks it is very costly to produce training data with class labels. Active learning acquires data incrementally, at each stage using the model learned so far to help identify especially useful additional data for labeling. Existing empirical active learning approaches have focused on learning classifiers. However, many applications require estimations of the probabi...

This article gives an overview of the most promising technologies for service providers to offer virtual private network services. The focus of this article is on the analysis of the scalability implications of these virtual private network mechanisms on existing service provider backbone networks. Very often, when deploying VPN services, service providers will be confronted with a trade-off be...

Cloud point extraction (CPE) has been used for the preconcentration of cadmium, after the formation of a complex with 1, 5-bis(di-2-pyridylmethylene) thiocarbonohydrazide (DPTH), and further determination by flame atomic absorption spectrometry (FAAS) using Triton X-114 as surfactant. The main factors affecting the CPE, such as concentration of Triton X-114 and DPTH, pH, equilibration temperatu...

Code reuse attacks circumvent traditional program protection mechanisms such as W ⊕ X by constructing exploits from code already present within a process. Existing techniques to defend against these attacks provide ad hoc solutions or lack in features necessary to provide comprehensive and adoptable solutions. We present a systematic approach based on first principles for the efficient, robust ...

Cloud point extraction (CPE) was used for the preconcentration of Hg (II) by spectrophotometric method.In this complex, Triton-X-114,Cetylpyridinium chloride (CPC) and NaCl were applied as the non ionic surfactant, sensitizing agent and electrolyte respectively.The lower limit of detection (LOD) acquired under the optimum conditions was 1.10μg L-1. Therelative standard deviations(RSDs) for ten ...

(1)Peel Regional Cancer Center, Trillium Health Partners, Mississauga, ON (2) Department of Radiation Oncology, University of Toronto, Toronto, ON (3) Radiation Oncology Dept., Indiana UniversitySchool of Medicine, Indianapolis, IN, USA Introduction It is well known that the small field sizes (≤30 x 30mm 2 ) encountered in stereotactic radiosurgery (SRS) create difficulties in measuring dosimet...

25 We found a low prevalence (0.6%) of carbapenemase-producing Enterobacteriaceae 26 (CPE) in fecal microbiota of companion dogs. A single VIM-1-producing K. pneumoniae 27 isolate belonging to the ST2090 was detected. blaVIM-1 was carried on a class 1 integron 28 and an untypable ~ 48 kb plasmid. Emergence and spread of CPE in this group of 29 animals may represent a threat to public health in ...

Small viruses, we could not see And so relied on CPE To find them as they multiplied And thus they were identified. But Edith, who pursued the tracks Of polio, and saw its plaques Could tell them from Coxsackie B By Clinical Virology Which sorted out Pandora's Box From paraflu to chickenpox. Now, in this golden age of plastic Progress since has been fantastic Probes and RIA and kits Are quite e...

Parallel systems allow sequential programs that demand the highest possible performance or output quality to execute different versions of program parts in parallel to dynamically select the best version (i.e., the fastest or the one that produces the highest quality). The close coupling of multi-core systems offers new opportunities to explore such speculation. We discuss here how competitive ...

From the theory of an electric network containing any combination of resistances and a single variable impedance element having a constant phase angle independent of frequency, it is shown that the graph of the terminal series reactance against the resistance is an arc of a circle with the position of the center depending upon the phase angle of the variable element. If it be assumed that biolo...