4,557 research outputs found
Multiparticle production in the model with antishadowing
We discuss the role of absorbtion and antishadowing in particle production.
We reproduce power-like energy behavior of the mean multiplicity in the model
with antishadowing and discuss physical implications of such behavior for the
hadron structure.Comment: 11 pages, 3 figures, extended version of the talk at the XXXII
International Symposium on Multiparticle Dynamics September 7-13, 2002
Alushta, Crimea, Ukrain
On impact parameter dependence of low-x structure functions
We consider impact parameter dependence of the polarized and unpolarized
structure functions. Unitarity does not allow factorization of the structure
functions over the Bjorken x and the impact parameter b variables. On the basis
of the particular geometrical model approach we conclude that spin of
constituent quark may have a significant orbital angular momentum component
which can manifest itself through the peripherality of the spin dependent
structure functions.Comment: 5 pages, 1 figur
Novel features of diffraction at the LHC
Interest and problems in the studies of diffraction at LHC are highlighted.
Predictions for the global characteristics of proton-proton interactions at the
LHC energy are given. Potential discoveries of the antishadow scattering mode
and diffractive scattering conjugated with high-- jets are discussed.Comment: 10 pages, 7 figures, journal version, 1 figure added, extended
introductio
Different behaviour of the spin structure functions and at
We consider low- behaviour of the spin structure functions and
in the unitarized chiral quark model which combines ideas on the
constituent quark structure of hadrons with a geometrical scattering picture
and unitarity. A nondiffractive singular low- dependence of and
indicated by the recent SMC experimental data is described. A
diffractive type smooth behaviour of is predicted at small . The
expectations for the double-spin asymmetries in the low-mass Drell-Yan
production at RHIC in the central region are discussed alongside.Comment: LaTeX, 10 pages, 2 figure
RESVERATROL IN KUBAN WINES
Purpose: The main purpose of viticulture is to improve the quality of the grapes, both to a greater extent for ampelotherapy and winemaking, and, to a lesser extent, to onotherapy.
Methodology: The article highlights the results of perennial (from 2014) studies of 18 promising technical grape varieties from different zones of the Krasnodar Territory: Anapo-Taman, Central, as well as Amur from the Black Sea zone of the Krasnodar Territory and two control Western European world-famous and most common varieties Merlot and Cabernet-Sauvignon in the same zones.
Result: The average values of resveratrol were found in wine materials from the varieties Vladimir and Dmitry (4.7 mg / dm3), Podlesny (3.9 mg / dm3), Saperavi Severny (3.5 mg / dm3), 40 let Octiabria (3.3 mg / dm3), Kurchansky and 40 let Pobedy (3.0 and 2.9 mg / dm3, respectively). On the other hand, as shown by the analysis of wine materials, the Antaris, Varyushkin, Mitsar and Plechistik varieties synthesize a lower content of resveratrol (1.0 and 0.9 mg / dm3, respectively).
Applications: This research can be used for the universities, teachers and education students.
Novelty/Originality: In this research, the model of resveratrol in Kuban wines is presented in a comprehensive and complete manner
Hyperon Polarization in the Constituent Quark Model
We consider mechanism for hyperon polarization in inclusive production. The
main role belongs to the orbital angular momentum and polarization of the
strange quark-antiquark pairs in the internal structure of the constituent
quarks. We consider a nucleon as a core consisting of the constituent quarks
embedded into quark condensate. The nonperturbative hadron structure is based
on the results of chiral quark models.Comment: 14 pages, LaTeX, 2 Figures, References adde
Morfološke značajke oporavka jetrenog parenhima nakon eksperimentalno izazvanog oštećenja
The aim of the study was to investigate morphological traits of hepatic parenchymal
tissue repair in response to injury using the conventional technique (closure) and an innovation
method (such as hemostatic medication swab packing and modified batching). The experimental
study was carried out on laboratory rats of the Winzar breed using light microscopy, standard stains
for micropreparations, and morphometry. Histopathologic examination of micropreparations stained
by standard methods revealed pronounced dystrophic processes in hepatocytes located near the necrotic
zone (albuminous and hydropic degeneration and chromatin fragmentation in the nuclei).
Morphometric studies showed a significant decrease (p<0.001) in almost all indicators of the size of
cells and nuclei both near necrosis and distant from it on day 28 of the experiment in the experimental
group in comparison to the control group. The results obtained pointed to more intense repair
processes when applying the innovation method.Cilj istraživanja bio je ispitati morfološke značajke oporavka parenhimnog tkiva jetre u odgovoru na oštećenje primjenom
konvencionalne tehnike (zatvaranje) i inovacijske metode (kao što je oblaganje gazom natopljenom hemostatskim lijekom i
modificiran batching). Ovo eksperimentalno istraživanje provedeno je na laboratorijskim Winzar štakorima primjenom svjetlosne
mikroskopije, standardnih boja za mikropreparate i morfometrije. Histopatološka analiza mikropreparata obojenih
standardnim metodama pokazala je znatne distrofične procese u hepatocitima blizu nekrotične zone (albuminozna i hidropična
degeneracija, fragmentacija kromatina u jezgrama). Morformetrijska ispitivanja pokazala su značajno smanjenje
(p<0,001) svih pokazatelja veličine stanica i jezgara kako blizu nekroze tako i dalje od nje 28. dana eksperimenta u eksperimentalnoj
skupini u usporedbi s kontrolnom skupinom. Dobiveni rezultati ukazuju na intenzivnije procese oporavka kad je
primijenjena inovacijska metoda
High-Energy and High-Power-Density Potassium Ion Batteries Using Dihydrophenazine-Based Polymer as Active Cathode Material
Polymeric aromatic amines were shown to be very promising cathodes for lithium-ion batteries. Surprisingly, these materials are scarcely used for designing post-lithium batteries. In this Letter, we investigate the application of the high-voltage poly(N-phenyl-5,10-dihydrophenazine) (p-DPPZ) cathodes for K-ion batteries. The designed batteries demonstrate an impressive specific capacity of 162 mAh g-1 at the current density of 200 mA g-1, operate efficiently at high current densities of 2-10 A g-1, enabling charge and discharge within ∼1-4 min, and deliver the specific capacity of 125-145 mAh g-1 with a retention of 96 and 79% after 100 and 1000 charge-discharge cycles, respectively. Finally, these K-ion batteries with polymeric p-DPPZ cathodes showed rather outstanding specific power of >3 × 104 W kg-1, thus paving a way to the design of ultrafast and durable high-capacity metal-ion batteries matching the increasing demand for high power and high energy density electrochemical energy storage devices. © 2019 American Chemical Society.Government Council on Grants, Russian Federation: 02.Russian Science Foundation, RSF: 16-13-00111This work was supported by Russian Science Foundation, project 16-13-00111. We acknowledge the support of Dr. A. Mumyatov with FTIR spectroscopy measurements. The XPS measurements were supported by the Government of Russian Federation (Act 211, Agreement No. 02.A03.21.0006) and Theme “Electron” (no. AAAA-A18-118020190098-5)
- …