Lhermitte-Duclos disease (LDD) is a benign neoplasm of posterior fossa, involving cerebellum. It is also known as dysplastic cerebellar gangliocytoma. It is not a true neoplasm but a hamartoma. It can be either isolated finding or associated with Cowden (multiple hamartoma syndrome). adults.

The paper presents an application of the VHDL-AMS formalism to the model of a n-MOS transistor named EKV. Our model takes into account several new features specific to deep submicron technology (parasitic resistors and overlap capacitors induced by LDD), and thermalelectronic interactions. We then give some examples of application of this innovative EKV MOS model (inverter, thermal-opto-electro...

The authors report the case of a 7-year-old boy with a history of developmental delay who presented with aggressive behavior. A magnetic resonance (MR) image showed a mass lesion originating from the cerebellar vermis with an atypical folial pattern and contrast enhancement. Histologically, the subtotally resected specimen consisted mostly of neuropil with nodular foci of ganglion cells. Lhermi...

Predicting forest-tree seed dispersal across a landscape is useful for estimating gene flow from genetically engineered (GE) or transgenic trees. The question of biocontainment has yet to be resolved, although field-trial permits for transgenic forest trees are on the rise. Most current field trials in the United States occur in the Southeast where Pinus taeda L., an indigenous species, is the ...

Gondwanan vicariance, long-distance dispersal (LDD), and boreotropical migration have been proposed as alternative hypotheses explaining the pantropical distribution pattern of organisms. In this study, the historical biogeography of the pond skater genus Limnogonus was reconstructed to evaluate the impact of biogeographical scenarios in shaping their modern transoceanic disjunction. We sampled...

Clonal species normally have low seed production, low recruitment rates and long lifespans, and it is expected that the rates of long-distance dispersal (LDD) of seeds will be low as well. Banksia candolleana is a clonal shrub in Mediterranean-type, fire-prone sclerophyll shrublands of southwestern Australia, whose reproductive biology and population dynamics contrast with those of co-occurring...

An analytical model to describe the bias dependent series resistances and of LDD MOSFETs down to quarter micron and below is introduced. Comparing measurement and simulation results of CMOS ring oscillators it has been found that for low voltage applications ( V) an incorrect description of and can cause a simulation error of up to 30 % in the delay time of CMOS inverters.

Climate change presents a potentially severe threat to biodiversity. Species will be required to disperse rapidly through fragmented landscapes in order to keep pace with the changing climate. An important challenge for conservation is therefore to manage landscapes so as to assist species in tracking the environmental conditions to which they are adapted. Here we develop a stochastic spatially...