West Nile Fever Epidemic Situation in the Russian Federation Territory in 2011 and Prognosis of its Development

Presented is characteristic of West Nile Fever (WNF) epidemiologic situation in the Russian Federation in 2011. Expansion of the territories involved in the epidemic process and formation of the new WNF foci are observed. Data on WNF morbidity in June-October 2011 in ten regions of Russia are presented. Described are clinical and epidemiologic peculiarities of WNF morbidity in 2011. WNF agent markers are detected in the territory of 38 regions of Russia, suggesting its circulation on the vast areas of the country. Prognosis on WNF epidemic situation in the Russian Federation is considered to be dependent on many factors, climate warming being the most global one. Natural foci emergence and WNF cases registration are expected in the near future in the central regions of European part of Russia and forest-steppe area of Southern Siberia. WNF diagnostics improvement is thought to confer for better registration of the cases and detection of further enlargement of endemic territories

APPLICATION OF MOLECULAR MARKERS IN BREEDING FOR RESISTANCE TO POTATO CYST NEMATODE

The article presents the results of the application of molecular markers of the genes controlling resistance to potato cyst nematode in different stages of potato breeding - for screening genetic collections and promising hybrids of the All-Russian Institute of Potato Research and the Vavilov Institute of Plant Genetic Resources. It has been established that "pseudopositive" and "pseudonegative" results of a marker-mediated breeding process are associated not only with the specificity of the used markers, but with a lack of objectivity in phenotypic evaluation for resistance to the nematode

Peculiarities of Epidemiological Situation on the West Nile Fever in 2012 in the Territory of the Russian Federation

During the epidemic season of 2012 453 cases of West Nile fever (WNF) were registered in the territory of the 21 constituent entities of the Russian Federation. Epidemic process is spreading itself towards the northern regions of Russia. The presence of markers of West Nile fever virus in carriers and vectors of the disease as well as acquired immunity among the population against the West Nile virus (WNV) have been identified in the territory of 53 constituent entities of the Russian Federation. The epidemic process is characterized by a number of peculiarities concerning both its epidemiological and clinical aspects. With the intensification of diagnostic works among the patients with clinical symptomatology similar to WNF, first and foremost in the territories where WNV markers have been detected, prognosticated is the registration of WNF incidence among the population extending over a large area of the Russian Federation

Probing BFKL Dynamics in the Dijet Cross Section at Large Rapidity Intervals in ppbar Collisions at sqrt{s}=1800 and 630 GeV

Inclusive dijet production at large pseudorapidity intervals (delta_eta) between the two jets has been suggested as a regime for observing BFKL dynamics. We have measured the dijet cross section for large delta_eta in ppbar collisions at sqrt{s}=1800 and 630 GeV using the DO detector. The partonic cross section increases strongly with the size of delta_eta. The observed growth is even stronger than expected on the basis of BFKL resummation in the leading logarithmic approximation. The growth of the partonic cross section can be accommodated with an effective BFKL intercept of a_{BFKL}(20GeV)=1.65+/-0.07.Comment: Published in Physical Review Letter

Search for Electroweak Production of Single Top Quarks in ppbar Collisions

We present a search for electroweak production of single top quarks in the electron+jets and muon+jets decay channels. The measurements use ~90 pb^-1 of data from Run 1 of the Fermilab Tevatron collider, collected at 1.8 TeV with the DZero detector between 1992 and 1995. We use events that include a tagging muon, implying the presence of a b jet, to set an upper limit at the 95% confidence level on the cross section for the s-channel process ppbar->tb+X of 39 pb. The upper limit for the t-channel process ppbar->tqb+X is 58 pb.Comment: 11 pages, 2 figures. This is the published versio

A Quasi-Model-Independent Search for New Physics at Large Transverse Momentum

We apply a quasi-model-independent strategy ("Sleuth") to search for new high p_T physics in approximately 100 pb^-1 of ppbar collisions at sqrt(s) = 1.8 TeV collected by the DZero experiment during 1992-1996 at the Fermilab Tevatron. Over thirty-two e mu X, W+jets-like, Z+jets-like, and 3(lepton/photon)X exclusive final states are systematically analyzed for hints of physics beyond the standard model. Simultaneous sensitivity to a variety of models predicting new phenomena at the electroweak scale is demonstrated by testing the method on a particular signature in each set of final states. No evidence of new high p_T physics is observed in the course of this search, and we find that 89% of an ensemble of hypothetical similar experimental runs would have produced a final state with a candidate signal more interesting than the most interesting observed in these data.Comment: 28 pages, 17 figures. Submitted to Physical Review

Search for R-parity Violating Supersymmetry in Dimuon and Four-Jets Channel

We present results of a search for R-parity-violating decay of the neutralino chi_1^0, taken to be the Lightest Supersymmetric Particle. It is assumed that this decay proceeds through one of the lepton-number violating couplings lambda-prime_2jk (j=1,2; k=1,2,3). This search is based on 77.5 pb-1 of data, collected by the D0 experiment at the Fermilab Tevatron in ppbar collisions at a center of mass energy of 1.8 TeV in 1992-1995.Comment: 10 pages, 3 figure