Emmanuel Fernandez

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During a large scale "non a priori" survey in 2010 of South African plant-infecting single stranded DNA viruses, a highly divergent geminivirus genome was isolated from a wild spurge, Euphorbia caput-medusae. In addition to being infectious in E. caput-medusae, the cloned viral genome was also infectious in tomato and Nicotiana benthamiana. The virus, named(More)
Comprehensive inventories of plant viral diversity are essential for effective quarantine and sanitation efforts. The safety of regulated plant material exchanges presently relies heavily on techniques such as PCR or nucleic acid hybridisation, which are only suited to the detection and characterisation of specific, well characterised pathogens. Here, we(More)
The family Geminiviridae comprises seven genera differentiated by genome organization, sequence similarity, and insect vector. Capulavirus, an eighth genus, has been proposed to accommodate two newly discovered highly divergent geminiviruses that presently have no known vector. Alfalfa leaf curl virus, identified here as a third capulavirus, is shown to be(More)
BACKGROUND Efforts to provide a valid picture of surgeons' individual performance evolution should frame their outcomes in relation to what is expected depending on their experience. We derived the learning curve of young thyroidectomy surgeons as a baseline to enable the accurate assessment of their individual outcomes and avoid erroneous conclusions that(More)
Little is known about the prevalence, diversity, evolutionary processes, genomic structures and population dynamics of viruses in the divergent geminivirus lineage known as the capulaviruses. We determined and analyzed full genome sequences of 13 Euphorbia caput-medusae latent virus (EcmLV) and 26 Alfalfa leaf curl virus (ALCV) isolates, and partial genome(More)
Cowpea, (Vigna unguiculata L. (Walp)) is an annual tropical grain legume. Often referred to as "poor man's meat", cowpea is one of the most important subsistence legumes cultivated in West Africa due to the high protein content of its seeds. However, African cowpea production can be seriously constrained by viral diseases that reduce yields. While twelve(More)
— To analyze the robustness of adaptive control system, stability analysis of the closed-loop system and convergence analysis of parameters are two issues of most importance. In this paper, we study the convergence properties for the reduced-order adaptive control system achieved in [1], where we established the stability properties for the closed-loop(More)
— Algorithms for the autonomous decision and control of unmanned aerial vehicles (UAV's) require access to accurate information about the state of the environment in order to perform well. However, this information is oftentimes uncertain and dynamically changing. An efficient method to store and retrieve this information in such circumstances is provided(More)
SUMMARY In this paper, we present robust adaptive controller design for SISO linear systems with zero relative degree under noisy output measurements. We formulate the robust adaptive control problem as a nonlinear H ∞-optimal control problem under imperfect state measurements, and then solve it using game theory. By using the a priori knowledge of the(More)
— This paper presents initial results of a research study in the optimal scheduling (i.e., job sequencing) in Reen-trant Manufacturing Lines (RML), motivated by applications in semiconductor manufacturing. In particular, a simple benchmark RML is utilized, and the optimal scheduling policy is analyzed for an infinite horizon discounted cost problem(More)