Contents of heavy metals in fructicose epiphytic lichens of Karelia as indicator of atmospheric transport of pollutants

Results of studies of heavy metals contents in fruticose epiphytic lichens in Karelia are presented and the influence of different sources on the elemental composition of lichens has been estimated. It has been shown, that long-range atmospheric transport influences strongly the accumulation of Pb, Zn, Cd, Sb. For Al, Fe and Co lithogenic source is the main one. In the Northern Karelia atmospheric transport of Cu, Co and Ni from metallurgic enterprises of the Murmansk Region is important source of these elements

Report of the QCD Tools Working Group

We report on the activities of the ``QCD Tools for heavy flavors and new physics searches'' working group of the Run II Workshop on QCD and Weak Bosons. The contributions cover the topics of improved parton showering and comparisons of Monte Carlo programs and resummation calculations, recent developments in Pythia, the methodology of measuring backgrounds to new physics searches, variable flavor number schemes for heavy quark electro-production, the underlying event in hard scattering processes, and the Monte Carlo MCFM for NLO processes.Comment: LaTeX, 47 pages, 41 figures, 10 tables, uses run2col.sty, to appear in the Proceedings of the Workshop on "QCD and Weak Boson Physics in Run II", Fermilab, March - November 199

Synthesis and oxidative cyclization of 2-arylhydrazono-2-cyanoacetamidines to 5-amino-2-aryl-2H-[1,2,3]triazole-4-carbonitrile

A general and convenient method for the synthesis of 2-arylhydrazono-2- cyanoacetamidines, containing either a cytisine or tryptamine moiety, or other secondary and primary amines was elaborated. A series of 5-amino-2-aryl-2H-[1,2, 3]-triazole-4-carbonitriles was successfully prepared by oxidation of these amidines with copper acetate in pyridine. The screening of the biological activity of the synthesized triazoles and amidines have shown that, some of these compounds possess fungicidal activity at concentrations of 50 μg/mL against some fungi tested. © ARKAT USA, Inc

On elliptic solutions of the quintic complex one-dimensional Ginzburg-Landau equation

The Conte-Musette method has been modified for the search of only elliptic solutions to systems of differential equations. A key idea of this a priory restriction is to simplify calculations by means of the use of a few Laurent series solutions instead of one and the use of the residue theorem. The application of our approach to the quintic complex one-dimensional Ginzburg-Landau equation (CGLE5) allows to find elliptic solutions in the wave form. We also find restrictions on coefficients, which are necessary conditions for the existence of elliptic solutions for the CGLE5. Using the investigation of the CGLE5 as an example, we demonstrate that to find elliptic solutions the analysis of a system of differential equations is more preferable than the analysis of the equivalent single differential equation.Comment: LaTeX, 21 page

History of unique heliometric observations of the moon's physical libration

© Medwell Journals, 2016.The research is devoted to the investigation history of the kinetic and dynamic parameters of the Moon. Today, the Moon is the subject of a comprehensive study in many space experiments. In this research, we proposed a historical analysis of unique Heliometric observations of the Moon's physical libration. The article described the history of the beginning of observations and study of the physical libration of the Moon in Engelhardt Astronomical Observatory (EAO) and the main results obtained by these studies. The programs of space missions consist of the subtle effects investigation of the rotational motion and the physical liberation, a study of the gravitational field of the Moon and planets crosslink tracking methods, creating a selenographic coordinate system and the standing the variety of the internal structure of the Moon. Unquestionably, the basis for all these studies are the classic Heliometric observations of lunar physical liberation started over 100 years ago. In 2015, it was the 100th anniversary of Banachiewicz's series of physical libration of the Moon creation. The values of the parameters of the lunar physical libration obtained from Heliometric observations are given. The study also describes Banachiewicz's observations on the meridian circle, participation in observations of a solar eclipse at the 1912 year and gravimetric expeditions

Light Stop NLSPs at the Tevatron and LHC

How light can the stop be given current experimental constraints? Can it still be lighter than the top? In this paper, we study this and related questions in the context of gauge-mediated supersymmetry breaking, where a stop NLSP decays into a W, b and gravitino. Focusing on the case of prompt decays, we simulate several existing Tevatron and LHC analyses that would be sensitive to this scenario, and find that they allow the stop to be as light as 150 GeV, mostly due to the large top production background. With more data, the existing LHC analyses will be able to push the limit up to at least 180 GeV. We hope this work will motivate more dedicated experimental searches for this simple scenario, in which, for most purposes, the only free parameters are the stop mass and lifetime.Comment: 31 pages, 11 figures; v2: added minor clarifications and reference

Deep inelastic J/ψJ/\psi production at HERA in the kTk_T-factorization approach and its consequences for the nonrelativistic QCD

In the framework of the $k_T$-factorization approach, we analyse the inclusive and inelastic production of $J/\psi$ particles in deep inelastic $ep$ scattering. We take into account both colour-singlet and colour-octet production channels. We inspect the sensitivity of theoretical predictions to the choice of model parameters. Our theoretical results agree reasonably well with recent experimental data collected by the collaboration H1 at HERA.Comment: 14 pages, 6 figure

Squark Mixing in Electron-Positron Reactions

Squark mixing plays a large role in the phenomenology of the minimal supersymmetric standard model, determining the mass of the lightest Higgs boson and the electroweak interactions of the squarks themselves. We examine how mixing may be investigated in high energy $e^+ e^-$ reactions, both at LEP-II and the proposed linear collider. In particular, off-diagonal production of one lighter and one heavier squark allows one to measure the squark mixing angle, and would allow one to test the mass relations for the light Higgs boson. In some cases off-diagonal production may provide the best prospects to discover supersymmetry. In the context of the light bottom squark scenario, we show that existing data from LEP-II should show definitive evidence for the heavier bottom squark provided that its mass $m_{\tilde{b}_2} \le 120$ GeV.Comment: 22 pages, latex, 6 figure