Results 91 to 100 of about 37,350 (215)

Crop calendars for the US, USSR, and Canada in support of the early warning project [PDF]

open access: yes
New crop calendars are produced for U.S. regions where several years of periodic growth stage observations are available on a CRD basis. Preexisting crop calendars from the LACIE are also collected as are U.S.
Hodges, T.   +2 more
core   +1 more source

Agriinovation system formation in northern regions of Russia: food security and rural development implications [PDF]

open access: yes, 2016
The article examines development of food security for the population of northern regions in Russia. To reach the goal of regional food security and to change the declining trends in production, it is necessary to develop in-novative agrifood system model
Polbitsyn, S.
core  

Mathematical Modeling of Measured Recalescence Velocities

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 2, Page 977-988, 30 January 2026.
ABSTRACT A moving‐boundary problem of synchronous directional and volumetric solidification in undercooled liquid drops is formulated and solved. Directional solidification is caused by the temperature gradient along the spatial direction, whereas volumetric growth of new phase elements is caused by the melt undercooling ahead of the phase transition ...
Dmitri V. Alexandrov   +3 more
wiley   +1 more source

Model of the structure of the Earth’s crust and Upper Mantle along the Middle Ural transect (Based on the results of Volumetric seismic Density Modeling)

open access: yesGeoresursy
A geological and geophysical model of the structure of the earth’s crust and upper mantle along the Middle Ural transect is presented (as a vertical section of a three-dimensional seismic density model).
P. S. Martyshko   +2 more
doaj   +1 more source

Дослідження впливу тривалості зберігання суміші високов'язкої та малов'язкої нафт на її фізико-хімічні властивості [PDF]

open access: yes, 2012
В лабораторних умовах досліджено розшарування суміші, що складається з 30% високов'язкої долинської нафти та 70% малов'язкої російської нафти сорту Urals. Отримано графічну залежність зміни густини суміші нафт від часу відстоювання.
Пилипів, Л. Д.
core  

Intensification in pastoralist cereal use coincides with the expansion of trans-regional networks in the Eurasian Steppe

open access: yes, 2019
The pace of transmission of domesticated cereals, including millet from China as well as wheat and barley from southwest Asia, throughout the vast pastoralist landscapes of the Eurasian Steppe (ES) is unclear.
Makarewicz, C., Ventresca Miller, A.
core   +1 more source

Modification of Antibiotic Resistance Under Conditions of Microbial Symbiosis

open access: yesАнтибиотики и Химиотерапия, 2020
In antibiotic therapy it is necessary to use drugs active against the pathogen in its association with the host normal microflora. The aim of the study was to investigate modification of antibiotic resistance under conditions of the pathogen association ...
L. M. Aznabaeva   +2 more
doaj  

The Uralic languages

open access: yesFennia: International Journal of Geography, 2002
This paper deals with the Uralic languages, their regional distribution and relationship with one another. The Uralic languages are spoken in a large area in North and Central Eurasia. Most of the Uralic languages are seriously endangeredminority languages – only Finnish, Hungarian, and Estonian are principal national languages spoken in ...
openaire   +2 more sources

Comparative analysis of inductively coupled plasma mass spectrometry and alpha spectrometry methods to measure plutonium activity in biosubstrates

open access: yesРадиационная гигиена
Currently, the most common methods to measure the activity of transuranium elements in biological samples are alpha radiometry and alpha spectrometry. Of these, alpha spectrometry is the most sensitive and selective method.
V. R. Batalov   +3 more
doaj   +1 more source

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