49 research outputs found
Роль ХОБЛ в развитии почечной патологии
The problem of kidneys lesion remains actual nowadays. The article deals with the literature review on systemic manifestations of chronic obstructive pulmonary disease (COPD), as exemplified by urinary system involvement.Проблема поражения почек в современных условиях по-прежнему остается актуальной. В статье проведен анализ данных литературы о системном проявлении ХОБЛ на примере поражения мочевыделительной системы
Stability of critical behaviour of weakly disordered systems with respect to the replica symmetry breaking
A field-theoretic description of the critical behaviour of the weakly
disordered systems is given. Directly, for three- and two-dimensional systems a
renormalization analysis of the effective Hamiltonian of model with replica
symmetry breaking (RSB) potentials is carried out in the two-loop
approximation. For case with 1-step RSB the fixed points (FP's) corresponding
to stability of the various types of critical behaviour are identified with the
use of the Pade-Borel summation technique. Analysis of FP's has shown a
stability of the critical behaviour of the weakly disordered systems with
respect to RSB effects and realization of former scenario of disorder influence
on critical behaviour.Comment: 10 pages, RevTeX. Version 3 adds the functions for arbitrary
dimension of syste
Catalytic oxidation of acetone and ethanol on a platinum wire
The current-voltage characteristics of a thin long platinum wire in air with acetone or ethanol small admixtures were obtained. Using the quadratic dependence of platinum resistance on temperature, the temperature-current dependences for the wire were calculated. At concentrations of combustible gas vapors above a certain value, these dependences show a hysteresis character. Using the assumption of acetone and ethanol complete oxidation on platinum, as a catalyst, and the first order of the oxidation reaction, temperature-current dependences was analysised. The temperature difference between the high and low-temperature stationary regimes of catalytic oxidation on the wire makes it possible to estimate the admixture concentration. As a result, the experimental dependence of the critical current value by catalytic ignition and extinction gas mixture on platinum on the admixture concentration was constructed. With its analytical description, it is possible to fairly accurately estimate the apparent values of the activation energy and the pre-exponential multiplier for the oxidation reaction in a wide temperature range. A method of determining the kinetic parameters for the oxidation reaction based on the experimentally found parameters of degeneracy critical conditions is proposed
Genotype by yield × trait (GYT) biplot analysis for the identification of the superior winter and facultative barley breeding lines
Received: January 25th, 2023 ; Accepted: May 21st, 2023 ; Published: June 17th, 2023 ; Corresponding author e-mail: [email protected] the present study, in a panel of promising winter and facultative barley (Hordeum
vulgare L.) breeding lines, the peculiarities of yield performance and its combination with
resistance (tolerance) to the most common under conditions of the Ukrainian Forest-Steppe
abiotic and biotic stresses have been determined. In 2016-17–2018-19 the breeding lines were
differentiated based on grain yield, thousand kernel weight, frost resistance, leakage of
electrolytes, relative drought tolerance, lodging resistance, and resistance to powdery mildew
(caused by Blumeria graminis (DC.) E. O. Speer, f. sp. hordei emend. É. J. Marchal (anamorph
Oidium monilioides Link)), spot blotch (caused by Cochliobolus sativus (anamorph Bipolaris
sorokiniana [Sacc.] Shoem.)), and leaf rust (caused by Puccinia hordei Otth.). GYT (genotype
by yield × trait) biplot model was used for comprehensive evaluation of the breeding lines by a
combination of yield with a complex of traits. As a result, the winter breeding line ‘Pallidum
5096’ and facultative breeding line ‘Pallidum 5110’ superior to others in terms of yield × traits
combinations have been identified. These breeding lines as new varieties ‘MIP Atlas’ and ‘MIP
Yanus’ accordingly have been submitted to the Ukrainian Institute for Plant Variety Examination
for further State Qualification Examination. The winter (‘Pallidum 5134’, ‘Pallidum 5097’,
‘Pallidum 5024’, ‘Pallidum 5090’, and ‘Pallidum 5130’) and facultative (‘Pallidum 5153’,
‘Pallidum 5102’, ‘Pallidum 5126’, and ‘Pallidum 5131’) breeding lines can be used as valuable
genetic sources in breeding programs in Ukraine and some other Central a nd Eastern European
countries
Особенности влияния ХОБЛ на развитие почечной патологии и идентифицирование характера поражения почек с использованием специфических маркеров
It is still not quite clear how chronic obstructive pulmonary disease (COPD) affects the urinary system. The investigation of renal disease as systemic manifestation of COPD is still relevant.Вопрос о влиянии ХОБЛ на мочевыделительную систему остается до конца не изученным. Изучение поражения почек, как системного проявления ХОБЛ в современных условиях по-прежнему остается актуальным
The three-dimensional randomly dilute Ising model: Monte Carlo results
We perform a high-statistics simulation of the three-dimensional randomly
dilute Ising model on cubic lattices with . We choose a
particular value of the density, x=0.8, for which the leading scaling
corrections are suppressed. We determine the critical exponents, obtaining , , , and ,
in agreement with previous numerical simulations. We also estimate numerically
the fixed-point values of the four-point zero-momentum couplings that are used
in field-theoretical fixed-dimension studies. Although these results somewhat
differ from those obtained using perturbative field theory, the
field-theoretical estimates of the critical exponents do not change
significantly if the Monte Carlo result for the fixed point is used. Finally,
we determine the six-point zero-momentum couplings, relevant for the
small-magnetization expansion of the equation of state, and the invariant
amplitude ratio that expresses the universality of the free-energy
density per correlation volume. We find .Comment: 34 pages, 7 figs, few correction