Results 31 to 40 of about 4,188 (168)

CHANGES IN MICROMORPHOMETRIC PARAMETERS OF VOIDS ALONG THE PROFILE OF ZONAL SOILS IN EUROPEAN RUSSIA

Бюллетень Почвенного института им. В.В. Докучаева, 2015
The soils are distinguished by the presence and the profile distribution pattern of such pedogenic parameters as the organic matter content, available pedofeatures, structural state of the soil mass, etc. They differ in the organization of the pore space
E. B. Skvortsova, K. N. Abrosimov, K. A. Romanenko   +2 more
doaj   +1 more source

Some Peculiarities of Arable Soil Organic Matter Detection Using Optical Remote Sensing Data

Remote Sensing, 2021
Optical remote sensing only provides information about the very thin surface layer of soil. Rainfall splash alters soil surface properties and its spectral reflectance.
Elena Prudnikova, Igor Savin
doaj   +1 more source

F. Yu. Levinson-Lessing (1861-1939) -V. V. Dokuchaev apprentice and follower and his role in Soil Science Institute foundation

Dokuchaev Soil Bulletin, 2019
The world-class geologist and petrographer - Frants Yul’evich Levinson-Lessing (1861-1939) was one of the followers and apprentices of V.V. Dokuchaev, the founder of the Soil Science. In 1882-1892 he took part in Dokuchaev’s expeditions. Thereafter, Levinson -Lessing carried out research in the field of petrography; he assumed various administrative ...
I. V. Ivanov, I. V. Zamotaev
openaire   +3 more sources

Gamma Ray Bursts from the Evolved Galactic Nuclei [PDF]

, 1998
A new cosmological scenario for the origin of gamma ray bursts (GRBs) is proposed. In our scenario, a highly evolved central core in the dense galactic nucleus is formed containing a subsystem of compact stellar remnants (CSRs), such as neutron stars and
Begelman M. C., Cavallo G., Chernenko A., Clark J. P., Dokuchaev V. I., Dokuchaev V. I., Giersz M., Gurevich A. V., Harding A. K., L. M. Ozernoy, Mitrofanov I. G., Murphy B. W., Ozernoy L. M., Ozernoy L. M., Paczynski B., Pierro V., Rutledge R. E., Tutukov A. V., Usov V. V., V. I. Dokuchaev, Yu. N. Eroshenko, Zeldovich Ya. B.   +21 more
core   +2 more sources

Reactive oxygen species and stress signaling in plants [PDF]

The Ukrainian Biochemical Journal, 2014
Data on the basic processes and the compartments, involved in formation of reactive oxygen species (ROS) in plant cells, are generalised. The features of structure and regulation of NADPH-oxidase as the one of main enzymatic producers of ROS are ...
Yu. E. Kolupaev, Yu. V. Karpets
doaj   +1 more source

LIGHT-HUMUS CARBONATE-ACCUMULATIVE AND PALE-METAMORPHIC SOILS IN THE COLLECTION OF V. V. DOKUCHAEV CENTRAL SOIL MUSEUM: VERIFICATION OF DIAGNOSTICS AT TYPE LEVEL

Dokuchaev Soil Bulletin, 2019
Results of 24 soil monoliths studying in the collection of Dokuchaev Central Soil Museum were analyzed in terms of diagnostic criteria in Russian soil classification system; these were chestnut, brown aridic, pale and cryoaridic soils. The topsoils of chestnut and brown aridic soils meet the criteria for the light-humus horizon (AJ), but their values ...
E. A. Gurkova, M. A. Bronnikova, M. I. Gerasimova, E. Y. Sukhacheva, Y. V. Konoplyanikova   +4 more
openaire   +3 more sources

PALE SOILS ON CARBONATE-FREE DEPOSITS IN CENTRAL SIBERIA AND THEIR TAXONOMIC POSITION IN THE SOIL CLASSIFICATION OF RUSSIA

Бюллетень Почвенного института им. В.В. Докучаева, 2015
Based upon a comprehensive analysis of detailed descriptions of soil profiles and analytical data obtained by I. Sokolov, V. Zolnikov, L. Yelovskaya and other researchers, as well as upon data on the soil-forming factors, an attempt is made to determine ...
T. V. Ananko, M. I. Gerasimova, D. E. Konyushkov   +2 more
doaj   +1 more source

Soil production and the soil geomorphology legacy of Grove Karl Gilbert

Soil Science Society of America Journal, Volume 84, Issue 1, Page 1-20, January/February 2020., 2020
Abstract Geomorphologists are quantifying the rates of an important component of bedrock's weathering in research that needs wide discussion among soil scientists. By using cosmogenic nuclides, geomorphologists estimate landscapes’ physical lowering, which, in a steady landscape, equates to upward transfers of weathered rock into slowly moving ...
Daniel D. Richter, Martha‐Cary Eppes, Jason C. Austin, Allan R. Bacon, Sharon A. Billings, Zachary Brecheisen, Terry A. Ferguson, Daniel Markewitz, Julio Pachon, Paul A. Schroeder, Anna M. Wade   +10 more
wiley   +1 more source

Asian Option Pricing under an Uncertain Volatility Model

Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
In this paper, we study the asymptotic behavior of Asian option prices in the worst‐case scenario under an uncertain volatility model. We derive a procedure to approximate Asian option prices with a small volatility interval. By imposing additional conditions on the boundary condition and splitting the obtained Black–Scholes–Barenblatt equation into ...
Yuecai Han, Chunyang Liu, Zhimin Zhang
wiley   +1 more source

The Eddington Luminosity Phase in Quasars: Duration and Implications [PDF]

, 1999
Non-steady and eruptive phenomena in quasars are thought to be associated with the Eddington or super-Eddington luminous stage. Although there is no lack in hypotheses about the total duration of such a stage, the latter remains essentially unknown.
Dokuchaev, V. I., Eroshenko, Yu. N., Ozernoy, L. M.   +2 more
core   +2 more sources