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- D W Brown, B P Blais, H L Robinson
- Journal of virology
- 1988

A series of recombinants between Rous-associated virus type 0 (RAV-0), RAV-1, and a replication-competent avian leukosis virus vector (RCAN) have been tested for disease potential in day-old inoculated K28 chicks. RAV-0 is a benign virus, whereas RAV-1 and RCAN induce lymphoma and a low incidence of a variety of other neoplasms. The results of the… (More)

- H L Robinson, R G Foster, B P Blais, S S Reinsch, M Newstein, P R Shank
- Virology
- 1992

Recombinants of Rous-associated virus-0 and Br21 have been used to localize 5' viral sequences that affect the osteopetrotic potential of avian leukosis viruses. Rous-associated virus-0 is a benign subgroup E virus of endogenous origin that does not cause osteopetrosis. Br21 is a constructed subgroup E virus with high osteopetrotic potential. 5' sequences… (More)

Mathematical models of epidemic dynamics offer significant insight into predicting and controlling infectious diseases. The dynamics of a disease model generally follow a susceptible, infected, and recovered (SIR) model, with some standard modifications. In this paper, we extend the work of Munz et.al (2009) on the application of disease dynamics to the… (More)

- Jonathan Skaza, Brian Blais
- ArXiv
- 2016

This study applies dynamical and statistical modeling techniques to quantify the proliferation and popularity of trending hashtags on Twitter. Using timeseries data reflecting actual tweets in New York City and San Francisco, we present estimates for the dynamics (i.e., rates of infection and recovery) of several hundred trending hashtags using an epidemic… (More)

- Anil Gupta, Akhil Ranjan Garg, +10 authors Patrick O. Kanold
- 2012

Simple cells found in primary visual cortex are orientation selective. It has been experimentally found that they acquire this property with time i.e. learning of orientation selectivity takes place. Many computational models have been proposed for the development of orientation selectivity. Most of the models proposed so far are either abstract in nature… (More)

- Brian Blais
- 1997

What we are looking for are functions ρ(x, t) such that, when they are placed in Equation 1.1 the equation holds true. There may be many such functions (such as ρ(x, t) = 0), but we are only interested in the physically meaningful or interesting (non trivial) solutions. A rule of thumb for solving physics problems is to know the answer before you start,… (More)

- Hong Yang, Brian Blais, Qin Leng
- 2011

We measured bulk δC and δN values and carbon and nitrogen elemental concentrations of leaves collected from Metasequoia glyptostroboides Hu et Cheng trees cultivated at 39 sites across the United States under different latitudes and climatic regions. δD values from south-facing leaf n-alkanes of 27 trees were also determined. Climate data over the past 50… (More)

- Brian Blais
- 1997

We’d like to understand how the brain works but that is, at least immediately, an impossible task. In the standard physics fashion we introduce a simplified model of the smallest workable unit of the big problem and make that the system we’d like to understand, namely the neuron. It is a well established idea in neuroscience that signals between neurons is… (More)

- Ann B. Lee, Brian Blais
- 1999

Visual cortical simple cells show a strong preference for edges of a particular orientation[Hubel and Wiesel, 1962]. The receptive field of the cortical cell shows adjacent excitatory and inhibitory subfields, which are projections from ON-center and OFF-center LGN cells, respectively[Reid and Alonso, 1995]. Here we present a single cell model using ON and… (More)

- Brian Blais
- 1997

The problem of error analysis is one which presents itself in any experimental setting. One measures some quantities in an experiment, and through calculation obtains a number which hopefully describes some important facet of Nature. From a series of measured numbers one should be able to divine a ‘rule of Nature’ and gain a true understanding about what is… (More)