Lost in knowledge translation:Our shifting research landscape

In 2018 there is a new research modality. Research is increasingly produced by individuals and organizations not formally affiliated with academic institutions; based on funding that does not come from the public sphere; aligned with and intended to support advocacy perspectives and is designed for use by particular communities and agents. The new research modality presents challenges and opportunities. While all of these new agents in the research landscape are well educated and qualified to conduct research, in many cases they are operating outside of the traditional research environment and perhaps with a different set of “research cultural norms”. This new research modality in fact begs for a solution similar to that promoted within the health sciences field – a model of knowledge translation. A panel of researchers drawn from across the new research landscape will engage with information professionals to discuss six key questions.</p

Pilchard Herpesvirus in Australia 1995-1999

Two epizootics have occurred in populations of the Australasian pilchard Sardinops sagax neopilchardus in waters of southern Australia. The first occurred between March and September 1995. It is thought to be the largest fish kill ever recorded and is also unique in the geographic extent of the mortalities. The economic loss attributed to the 1995 mortality event was in excess of A$12 million. The second occurred in 1998-1999 when approximately 60$ 15 million in Western Australia alone (Gaut, 2001). In 1995 mortalities occurred along more than 5000 km of the Australian coastline (Fig. 1) and also affected pilchards in New Zealand. The disease front spread from its origin in South Australia at about 30 km/day, often against prevailing currents and was not impeded by storm events. Thus it was not caused by planktonic toxins/pathogens. Likewise, there was no consistent association of the mortalities with environmental parameters such as temperature or salinity

The overlap operator as a continued fraction

We use a continued fraction expansion of the sign-function in order to obtain a five dimensional formulation of the overlap lattice Dirac operator. Within this formulation the inverse of the overlap operator can be calculated by a single Krylov space method where nested conjugate gradient procedures are avoided. We show that the five dimensional linear system can be made well conditioned using equivalence transformations on the continued fractions. This is of significant importance when dynamical overlap fermions are simulated.Comment: 3 pages, 1 figure, talk presented by U. Wenger at Lattice2001(chiral

The exclusive J/ψ process at the LHC tamed to probe the low x gluon

The perturbative QCD expansion for J/ψ photoproduction appears to be unstable: the NLO correction is large (and of opposite sign) to the LO contribution. Moreover, the predictions are very sensitive to the choice of factorisation and renormalisation scales. Here we show that perturbative stability is greatly improved by imposing a ‘Q0 cut’ on the NLO coefficient functions; a cut which is required to avoid double counting. Q0 is the input scale used in the parton DGLAP evolution. This result opens the possibility of high precision exclusive J/ψ data in the forward direction at the LHC being able to determine the low x gluon distribution at low scales

Study of Stretched Configuration High-Spin States in the Nickel Region with the (d,α) Reaction

This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit

Tunable cw UV laser with <35 kHz absolute frequency instability for precision spectroscopy of Sr Rydberg states

We present a solid-state laser system that generates over 200 mW of continuous-wave, narrowband light, tunable from 316.3 nm – 317.7 nm and 318.0 nm – 319.3 nm. The laser is based on commercially available fiber amplifiers and optical frequency doubling technology, along with sum frequency generation in a periodically poled stoichiometric lithium tantalate crystal. The laser frequency is stabilized to an atomic-referenced high finesse optical transfer cavity. Using a GPS-referenced optical frequency comb we measure a long term frequency instability of < 35 kHz for timescales between 10−3 s and 103 s. As an application we perform spectroscopy of Sr Rydberg states from n = 37 – 81, demonstrating mode-hop-free scans of 24 GHz. In a cold atomic sample we measure Doppler-limited linewidths of 350 kHz

Linking working memory and long-term memory: A computational model of the learning of new words

The nonword repetition (NWR) test has been shown to be a good predictor of children’s vocabulary size. NWR performance has been explained using phonological working memory, which is seen as a critical component in the learning of new words. However, no detailed specification of the link between phonological working memory and long-term memory (LTM) has been proposed. In this paper, we present a computational model of children’s vocabulary acquisition (EPAM-VOC) that specifies how phonological working memory and LTM interact. The model learns phoneme sequences, which are stored in LTM and mediate how much information can be held in working memory. The model’s behaviour is compared with that of children in a new study of NWR, conducted in order to ensure the same nonword stimuli and methodology across ages. EPAM-VOC shows a pattern of results similar to that of children: performance is better for shorter nonwords and for wordlike nonwords, and performance improves with age. EPAM-VOC also simulates the superior performance for single consonant nonwords over clustered consonant nonwords found in previous NWR studies. EPAM-VOC provides a simple and elegant computational account of some of the key processes involved in the learning of new words: it specifies how phonological working memory and LTM interact; makes testable predictions; and suggests that developmental changes in NWR performance may reflect differences in the amount of information that has been encoded in LTM rather than developmental changes in working memory capacity. Keywords: EPAM, working memory, long-term memory, nonword repetition, vocabulary acquisition, developmental change

Search for 3p-3h States in the A=12 and 16 Systems with the (6-Li,t) and (6-Li,3-He) Reaction

Supported by the National Science Foundation and Indiana Universit

Search for 3p-3h States in the A=16 System

This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit