The purpose of this study was to compare the accuracy, precision, and bias of fat mass (FM) as assessed by dual-energy X-ray absorptiometry (DXA), hydrostatic weighing (HW), air-displacement plethysmography (PM) using the BOD POD body composition system and total body water (TBW) against the four-compartment (4C) model in 25 children (11.4 +/- 1.4 yr). The regression between FM by the 4C model ...

A model of LGN input to layer 4C of macaque primary visual cortex has been used to test the hypothesis that feedforward convergence of P and M inputs onto layer 4C spiny stellate neurons is suucient to explain the observed gradual change in receptive eld size and contrast sensitivity with depth in the layer. Overlap of dendrites of postsynaptic neurons between M and P input zones proved suucien...

We describe a model for deploying radiation detectors on a transportation network consisting of two adversaries: a nuclear-material smuggler and an interdictor. The interdictor first installs the detectors. These installations are transparent to the smuggler, and are made under an uncertain threat scenario, which specifies the smuggler’s origin and destination, the nature of the material being ...

Water availability in Mount Ciremai National Parks (MCNP) is influenced by sustainability of the vegetation. Therefore, tree regeneration around water springs area needs to be investigated maintain ecosystem future. The purpose this study was analyzed and identify natural seedlings Seda Block MCNP. collections vegetation abiotic data carried out on 9 sample plots measuring 3 m × which purposive...

Double heterogeneity of randomly located pebbles in the core and Coated Fuel Particles (CFPs) in the pebbles are specific features in pebble bed reactors and usually, because of difficulty to model with MCNP code capabilities, are neglected. In this study, characteristics of HTR-10, Tsinghua University research reactor, are used and not only double heterogeneous but also truncated CFPs and Pebb...

The beta subunits of voltage-gated Ca(2+) channels are known to be regulators of the channels' gating properties. Here we report a striking additional function of a beta subunit. Screening of chicken cochlear and brain cDNA libraries identified beta(4c), a short splice variant of the beta(4) subunit. Although beta(4c) occurs together with the longer isoforms beta(4a) or beta(4b) in the brain, e...

Pohang Neutron Facility (PNF) is a pulsed neutron facility based on the 100-MeV electron linear accelerator. It was constructed for nuclear data production in Korea, and it consists of an electron linear accelerator, a watercooled Ta target with a water moderator and a time-offlight path with an 11 m length. The 100-MeV electron linac uses a thermionic RF-gun, an alpha magnet, four quadrupole m...

ntroduction:  monte  carlo  simulation  is  the  most  accurate  method  of  simulating  radiation  transport  and  predicting doses at different points of interest in radiotherapy. a great advantage of the monte carlo method  compared  to  the  deterministic  methods  is  the  ability  to  deal  accurately  with  any  complex  geometry.  its  disadvantage is the extremely long computing time r...

ofthe various factors that go into the computation better; it also segregates the least reliable and error-prone model-dependent components into terms that can be identified and minimized. Regional cerebral glucose utilization is calcu lated as: IT C@†• (T) †" K'I' I C@(t) e@ +k@)(Tt) dt JO (IfTC(t) fTC@(t) e@ +k@)(Tt) dt)-@-dt-i; 0 @ 0 Eq.! where C@' represents total concentration of ‘4C...