As opposed to slow waves, spontaneous and stimulus-induced oscillations in the gamma-band show no polarity reversal in cortical depth, which cannot be explained by the classical equivalent current dipole model usually proposed as a model of pyramidal cell synaptic activity. Here we propose a ring-shaped distribution of dipoles as a source model for these fast oscillations. This distribution gen...

This article reviews progress in the development of standards and guidelines for human–computer interaction, including those developed within international and US standards bodies. Guidance for incorporating software ergonomics standards and guidelines into software design and development processes is discussed. Several different techniques that have been defined for assessing the conformance o...

Mercury levels in canned tuna ®sh were determined by cold vapour atomic absorption spectrophotometry while cadmium and lead levels were determined by ̄ame atomic absorption spectrophotometry. The metal contents in the samples, expressed in mg gÿ1 wet weight, varied from 0.20 to 0.66 with an average value of 0.29 for mercury, from 0.09 to 0.32 with an average value of 0.18 for cadmium and from 0...

We describe in detail a software implementation of a current version of the 1-matrix method for computing light scattering by polydisperse, randomly oriented, rotationally symmetric particles. The FORTRAN 1-matrix codes are publicly available on the World Wide Web at http://www.giss.nasa.gov/&crmin. We give all necessary formulas, describe input and output parameters, discuss numerical aspects ...

Key factors implicated in aging include reactive oxygen species, inflammatory processes, insulin resistance, and mitochondrial dysfunction. All are exaggerated in transgenic growth hormone mice (TGM), which display a syndrome resembling accelerated aging. We formulated a complex dietary supplement containing 31 ingredients known to ameliorate all of the above features. We previously showed that...

Current languages for nonshared memory architectures provide a relatively low-level programming environment. In this paper we describe a set of language primitives which allow the programmer to express data-parallel algorithms at a higher level, while also permitting control over those aspects of the program critical to performance, such as load balance and data distribution. Given such a progr...

Introduction: Non-alcoholic fatty liver disease (NAFLD) is affecting more people globally. Indeed, NAFLD a spectrum of metabolic dysfunctions that can progress to hepatocellular carcinoma (NAFLD-HCC). This development occur in non-cirrhotic and thus, often lack clinical surveillance. The aim this study was develop non-invasive surveillance method for NAFLD-HCC. Methods: Using comprehensive u...

We reviewed 47 prospective studies of recurrence of pulmonary tuberculosis (TB) after cure to assess the influence of human immunodeficiency virus (HIV) infection and rifampin treatment. Multivariate regression revealed that the recurrence rate for HIV-uninfected persons increased with decreasing duration of therapy: it was 1.4 cases per 100 person-years for recipients of >or=7 months of rifamp...

Focusing of a 15 MeV, 19 nC electron bunch by an underdense plasma lens operated just beyond the threshold of the underdense condition has been demonstrated in experiments at the Fermilab NICADD Photoinjector Laboratory (FNPL). The strong 1.9 cm focal-length plasmalens focused both transverse directions simultaneously and reduced the minimum area of the beam spot by a factor of 23. Analysis of ...

With the availability of space-borne data from medium resolution optical sensors such as MERIS and MODIS, deriving land cover information of large areas is expected to improve considerably. Both, the higher spatial and spectral resolution compared to previously available data from AVHRR seem to be far more suited for detailed mapping of land cover. Within the Siberia-II project (EU contract EVG...