Results 51 to 60 of about 281,295 (187)

The world wide spread of space technology [PDF]

open access: yes
Space technological capabilities and developments in US, USSR, Western Europe, Japan, China, and developing ...
Hoagland, J. H., Skolnikoff, E. B.
core   +1 more source

Friends - of a kind: America and its allies in the Second World War [PDF]

open access: yes, 2006
Copyright @ 2006 Cambridge University PressThe Second World War continues to be an attractive subject for scholars and evenmore so for those writing for a general readership.
Folly, MH
core   +1 more source

Peculiarities of the solar wind interaction with the upper atmospheres of Venus and Mars

open access: yesGeofísica Internacional, 1980
Mediciones de plasma y de campos magnéticos en Venus y Marte así como observaciones de radio ocultamiento de satélites por sus atmósferas y ionosferas superiores revelan algunas diferencias y semejanzas en la configuración del flujo del viento solar ...
T. K. Breus
doaj   +1 more source

Formulation of the theory of perturbations for complicated models. Part II: weather prediction.

open access: yesGeofísica Internacional, 1975
En este artículo se presenta la aplicación de funciones conjugadas y teoría de perturbaciones al problema de predicción del tiempo.
G. I. Marchuk
doaj   +1 more source

Geologists of Russian origin in Latin America [PDF]

open access: yes, 2018
Se describe la vida y trayectoria de geólogos que más allá de su nacionalidad (rusa, ucraniana, tártara, alemana, etc.), nacieron en territorios que pertenecieron al Imperio Ruso, la Unión Soviética o la Federación Rusa, y de sus descendientes graduados ...
Alonso, Ricardo   +7 more
core   +1 more source

Further observations on the activity of Y chromosome heterochromatin in Rumex thyrsiflorus

open access: yesActa Societatis Botanicorum Poloniae, 2015
Observation of premeiotic nuclei of plants containing different numbers (from one to five) of Y chromosomes reveal that is such plants prior to meiosis all Y chromosomes are in fuzzy state, while in nuclei of tapetal cells or nuclei from anther stalk the
J. Żuk, Z. Bolkhovskikh
doaj   +1 more source

USSR Space Life Sciences Digest [PDF]

open access: yes
Research in exobiology, life sciences technology, space biology, and space medicine and physiology, primarily using data gathered on the Salyut 6 orbital space station, is reported.
Donnelly, K. L., Lewis, C. S.
core   +1 more source

Geopolitics versus business interests: The case of the Siberian gas-pipeline in the 1980s [PDF]

open access: yes
The discovery of a huge gas deposit in North Siberia in the 1980s changed somewhat western Europe economy, because an abundant and low cost energy source allowed to alleviate the burden of the 'energy crisis' and, above all, paved the way to a large ...
Hubert BONIN (GRES-CMHE)
core  

The action of therapeutic ultrasound on the catalytic activity of the dissociating enzymes

open access: yesArchives of Acoustics, 2015
The action of low intensity therapeutic ultrasound (0.88 MHz; 0.05 – 1.0 W/cm^2) on the activity and dissociation of the enzymes with labile quarternary structure was investigated (creatine kinase – CS, pyruvate kinase – PK, hexokinase HK and urease). It
N. A. ROZANOVA, E. P. CHETVERIKOWA
doaj  

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