Capacity scaling laws offer fundamental understanding on the trend of user throughput behavior when the network size increases. Since the seminal work of Gupta and Kumar, there have been active research efforts in developing capacity scaling laws for ad hoc networks under various advanced physical (PHY) layer technologies. These efforts led to many custom-designed solutions, most of which were ...

Teneurins are a family of phylogenetically conserved proteins implicated in pattern formation and morphogenesis. The sole orthologue in Caenorhabditis elegans, ten-1, is important for hypodermal cell migration, neuronal migration, path finding and fasciculation, gonad development, and basement membrane integrity of some tissues. However, the mechanisms of TEN-1 action remain to be elucidated. U...

The results obtained during the 1992 run of the SLD detector at the SLC are reviewed together with the general performances of the machine. The first measurement of the left-right asymmetry, the determination of the Z0 branching ratio to bottom quarks and the measurement of αs are presented. Current plans and expectations for the 1993 run, when high polarization (≥ 60%) GaAs strained cathodes s...

New results are presented on the fermion asymmetries, Ab and A,, and the b-branching ratio, &, using a data sample of 150,OOOZ” decays collected by the SLD during 1993 and 1994. The fermion asymmetries exploit the highly polarized electron beam available at the SLC (63.0% f 1.1% during 1993 and increasing to a preliminary value of 78.2% f 2.0% during 1994) to perform direct measurements of Ab a...

The phytochrome (phy) family of sensory photoreceptors transduce informational light signals to selected nuclear genes, inducing plant growth and developmental responses appropriate to the environment. Existing data suggest that one signaling pathway by which this occurs involves direct, intranuclear interaction of the photoactivated phy molecule with PIF3, a basic helix-loop-helix transcriptio...

Identification of all genes involved in the phytochrome (phy)-mediated responses of plants to their light environment is an important goal in providing an overall understanding of light-regulated growth and development. This article highlights and integrates the central findings of two recent comprehensive studies in Arabidopsis that have identified the genome-wide set of phy-regulated genes th...

We have searched for signatures of pohization in hadronic jets from 2° + g~ decays using the ‘~et handedness’ method. The charge azymmetry induced by the high SLC dectron beam polarization was used to sdect quark or antiquarkjets, qected to be leftand right-pokized, respectively. We find no evidence for jet handednessin ow global sample nor in a sample of tight quwk jets. We set upper ~ts of 5....

We have measured the strong coupEng a~(~~) using hadronic decays of 2° bosons coHected by the SLD experiment at SLAC. The data were compared with QCD predictions both at fied order O(a~ ) and including resummed ana~~~ lytic fomdae based on the next-to-leading logarithm approximation. We have performed a comprehensive analysis using event shapes, jet rates, particle correlations, and angtiar ene...

Diana Santos-Ferreira, MD, MMed, IOC Dip Sp Phy; Rita Tomás, MS, Hélder Dores, PhD