Картографічне моделювання просторово-часових аспектів розвитку трансформаційно-деградаційних процесів у річкових системах басейну Горині

Викладено результати картометричних досліджень і моделювання трансформаційно-деградаційних процесів, що відбуваються в річкових системах басейну Горині під впливом природних і антропогенних чинників в ХХ столітті.Results of the cartometric researches and modeling of transformation-degradation processes occurring in the river system of Horyn’ basin under the influence of natural and man-made factors in the XX-th century are presented

Faktors and consequences of the Hnylyi Rig river-catchment system cultivation

У статті охарактеризовано види господарської діяльності у басейні р. Гнилий Ріг (права притока Вілії, підсистема Горині), які мають суттєвий вплив на функціонування річки та її водозбору; виявлено просторово-часові особливості антропогенного навантаження у межах досліджуваної території; виділено та проаналізовано дестабілізуючі та екостабілізуючі чинники геоекологічної ситуації в басейні.In the article the main types of economic activity in the river basin that influences the functioning of the river and its watershed have been analyzed; the space and time features of the man-made pressure in the river basin geosystem have been evaluated; ekostabilizing and destabilizing factors of geoecological situation in the basin have been selected and analyzed

Геоекологічний стан річково-басейнової системи Липа (водозбір р. Стир).

Охарактеризовано сучасний геоекологічний стан водозбору р. Липа, виявлено стабілізуючі та дестабілізуючі умови й чинники геоекологічної ситуації, проаналізовано здійснені та проектовані природоохоронні заходи з її поліпшення

Природно-заповідна мережа Волинської області: параметри сучасного стану, показники динаміки, картографічні моделі

У статті відображено результати дослідження природно-заповідного фонду Волинської області: його структуру, коефіцієнт заповідності, коефіцієнт інсуляризованості, особливості просторової локалізації природоохоронних територій. Створено картографічні моделі, які відображають параметри сучасного стану природно-заповідного фонду досліджуваного регіону.The article presents research results of Volyn region natural preservation fund, its structure, reserve’s coefficient, insularization rate, space location of the conserved territories. The cartographic models have been created that show the present state parameters of considerated region natural preservation fund

Building the digital elevation vodels and definition other morphometric parametrs of Mizoch ridge means

Розглянуто можливості моделювання морфометричних параметрів Мізоцького кряжу (Рівненська область) за допомогою геоінформаційних технологій. Охарактеризовані методологічні підходи, використані для створення цифрових моделей унікальних регіонів. Рассмотрены возможности моделирования морфометрических параметров Мизочского кряжа (Ровенская область) с помощью геоинформационных технологий. Охарактеризованы методологические подходы, использованные при создании цифровых моделей уникальных регионов. The possibilities of modeling morphometric parameters of Mizoch ridge (Rivne region) using GIS technologies. Author examined methodological approaches used to create digital models of unique regions

Measurement of associated Z plus charm production in proton-proton collisions at root s=8TeV

A study of the associated production of a Z boson and a charm quark jet (Z + c), and a comparison to production with a b quark jet (Z + b), in pp collisions at a centre-of-mass energy of 8 TeV are presented. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb(-1), collected with the CMS detector at the CERN LHC. The Z boson candidates are identified through their decays into pairs of electrons or muons. Jets originating from heavy flavour quarks are identified using semileptonic decays of c or b flavoured hadrons and hadronic decays of charm hadrons. The measurements are performed in the kinematic region with two leptons with pT(l) > 20 GeV, vertical bar eta(l)vertical bar 25 GeV and vertical bar eta(jet)vertical bar Z + c + X) B(Z -> l(+)l(-)) = 8.8 +/- 0.5 (stat)+/- 0.6 (syst) pb. The ratio of the Z+c and Z+b production cross sections is measured to be sigma(pp -> Z+c+X)/sigma (pp -> Z+b+X) = 2.0 +/- 0.2 (stat)+/- 0.2 (syst). The Z+c production cross section and the cross section ratio are also measured as a function of the transverse momentum of theZ boson and of the heavy flavour jet. The measurements are compared with theoretical predictions.Peer reviewe

Search for a singly produced third-generation scalar leptoquark decaying to a tau lepton and a bottom quark in proton-proton collisions at root s=13 TeV

A search is presented for a singly produced third-generation scalar leptoquark decaying to a tau lepton and a bottom quark. Associated production of a leptoquark and a tau lepton is considered, leading to a final state with a bottom quark and two tau leptons. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV recorded with the CMS detector, corresponding to an integrated luminosity of 35.9 fb(-1). Upper limits are set at 95% confidence level on the production cross section of the third-generation scalar leptoquarks as a function of their mass. From a comparison of the results with the theoretical predictions, a third-generation scalar leptoquark decaying to a tau lepton and a bottom quark, assuming unit Yukawa coupling (lambda), is excluded for masses below 740 GeV. Limits are also set on lambda of the hypothesized leptoquark as a function of its mass. Above lambda = 1.4, this result provides the best upper limit on the mass of a third-generation scalar leptoquark decaying to a tau lepton and a bottom quark.Peer reviewe

Measurement of the underlying event activity in inclusive Z boson production in proton-proton collisions at root s=13 TeV

This paper presents a measurement of the underlying event activity in proton-proton collisions at a center-of-mass energy of 13TeV, performed using inclusive Z boson production events collected with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 2.1 fb(-1). The underlying event activity is quantified in terms of the charged particle multiplicity, as well as of the scalar sum of the charged particles' transverse momenta in different topological regions defined with respect to the Z boson direction. The distributions are unfolded to the stable particle level and compared with predictions from various Monte Carlo event generators, as well as with similar CDF and CMS measurements at center-of-mass energies of 1.96 and 7TeV respectively.Peer reviewe

Measurement of differential cross sections in the kinematic angular variable phi* for inclusive Z boson production in pp collisions at root s=8 TeV

Measurements of differential cross sections d sigma/d phi* and double-differential cross sections d(2)sigma/ld phi*d/y/ for inclusive Z boson production are presented using the dielectron and dimuon final states. The kinematic observable phi* correlates with the dilepton transverse momentum but has better resolution, and y is the dilepton rapidity. The analysis is based on data collected with the CMS experiment at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb(-1). The normalised cross section (1/sigma) d sigma/d phi*, within the fiducial kinematic region, is measured with a precision of better than 0.5% for phi* <1. The measurements are compared to theoretical predictions and they agree, typically, within few percent.Peer reviewe

Constraints on models of scalar and vector leptoquarks decaying to a quark and a neutrino at root s=13 TeV

The results of a previous search by the CMS Collaboration for squarks and gluinos are reinterpreted to constrain models of leptoquark (LQ) production. The search considers jets in association with a transverse momentum imbalance, using the M-T2 variable. The analysis uses proton-proton collision data at root s = 13 TeV, recorded with the CMS detector at the LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb(-1). Leptoquark pair production is considered with LQ decays to a neutrino and a top, bottom, or light quark. This reinterpretation considers higher mass values than the original CMS search to constrain both scalar and vector LQs. Limits on the cross section for LQ pair production are derived at the 95% confidence level depending on the LQ decay mode. A vector LQ decaying with a 50% branching fraction to t nu, and 50% to b tau, has been proposed as part of an explanation of anomalous flavor physics results. In such a model, using only the decays to t nu, LQ masses below 1530 GeV are excluded assuming the Yang-Mills case with coupling kappa = 1, or 1115 GeV in the minimal coupling case kappa = 0, placing the most stringent constraint to date from pair production of vector LQs.Peer reviewe