Microstructured neutron detectors have the benefit of enhanced detection efficiency as compared to planar devices, achieved by etching 6LiF-filled trenches on top surface a silicon PIN diode. This sensor geometry results in complex electric field distribution and depletion characteristics within diode under reverse bias. For first time record, effects fixed oxide charge microstructured device m...

A rapid, simple and reproducible HPLC method was developed and validated for the analysis of nimodipine (NM) and/or its metabolite, oxidized nimodipine (OX–NM) in rat cerebrospinal fluid (CSF) and artificial CSF. The NM and OX–NM were eluted in less than 10 min with no interferences from the endogenous CSF peaks. Analysis was carried out on a Eurospher Performance (RP-C18, 250 × 4.6 mm) column ...

In this study, the modification of quantum multi-swarm optimization algorithm is proposed for dynamic problems. The implies using search operators from differential evolution with a certain probability within particle swarm to improve algorithm’s capabilities in dynamically changing environments. For testing, Generalized Moving Peaks Benchmark was used. experiments were performed four benchmark...

We report on several features in the energy spectrum from an ultralow-noise germanium detector operated deep underground. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss an irreducible excess of bulklike events below 3 keV in ionization energy. These could be caused by unknown backgrounds, but also dark m...

Large-scale patterns of spatial variation in species geographic range size are central to many fundamental questions in macroecology and conservation biology. However, the global nature of these patterns has remained contentious, since previous studies have been geographically restricted and/or based on small taxonomic groups. Here, using a database on the breeding distributions of birds, we re...

OBJECTIVES To estimate annual changes and trends in the population of informal carers and to investigate transitions to caregiving by age, gender, locus of care, and level of involvement. DESIGN Longitudinal analysis of data from the British household panel survey, 1991 to 1998, an annual prospective survey of a nationally representative sample of more than 5000 private households in England,...

We consider a methodology based in B-splines scaling functions to numerically invert Fourier or Laplace transforms. The methodology is particularly well suited when the original function or its derivatives present peaks or jumps due to discontinuities in the domain.

3G cellular networks changed the face of technology completely by bringing to people's doorsteps high speed internet with improved bandwidth and better quality of experience. This accelerated the development of mobile apps harnessing the newly developed trend of near 24X7 connectivity on mobile phones. Today we have numerous applications fitting in the categories of VoIP, chat, social netw...

While there are different research groups in the mobile computing community, most research requires mobile action data in terms of user calling and mobility patterns. Since collection of such real data is currently difficult and since most activity data is proprietary [12], researchers need to model this mobile activity data to evaluate their work. In [9] we model parameterized mobile actions i...