Presidentation to Miss E. R. Campbell

E+e--+ R+p-due to Slepton Mixing

We consider a softly-broken supersymmetry model in which explicit flavour mixing occurs in the supersymmetric sector. Attention has been restricted to the leptonic sector, and a model-independent approach has been adopted. For the reaction e'e-+ 2 " + r+p-at Z " energies, it is found that, for reasonable parameters, oe+e-+,+p-oe+e-+p+p-is 0 (lo-'-lo-"). Thus far violation of lepton family numbe...

Full Spectrum Learning C O N F E R E N C E R E P O R T

C E N T E R F O R R E S E a R C H I N L a N G U a G E

A 3-layer back propagation network is used to implement a pattern association task which learns mappings that are analogous to the present and past tense forms of English verbs, i.e., arbitrary, identity, vowel change, and suffixation mappings. The degree of correspondence between connectionist models of tasks of this type (Rumelhart & McClelland, 1986; 1987) and children’s acquisition of infle...

The cas e of the miss ing molecule

In addition to the AIDS epidemic, which threatens to repeat the devastation of the 14th-century Black Death, another relic of the Dark Ages has reappeared. For those who missed the first perfonnance of the Holy Inquisition, the editors of Brit­ ain's Nature magazine staged a rerun for the benefit of those scientists who might be guilty of thinking, and uttering, for­ bidden ideas. The initial e...

V E R

Managing the buffering of data along arcs is a critical part of compiling a synchronous dataflow (SDF) program. This paper shows how dataflow properties can be analyzed at compile-time to make buffering more efficient. Since the target code corresponding to each node of an SDF graph is normally obtained from a hand-optimized library of predefined blocks, the efficiency of data transfer between ...