Results 61 to 70 of about 630 (148)

Holocene small mammals from caves localities of Usa river valley (Сhernyshev’s ridge, north-eastern part of European Russia) [PDF]

open access: yes, 2018
Reconstructing the Holocene history of the small mammal fauna is of special value because it provides an example of the natural development of mammalian communities under the influence of climate changes.
Kryazheva, I. V.   +3 more
core   +6 more sources

Heat waves in Poland: The relations to atmospheric circulation and Arctic warming

open access: yesInternational Journal of Climatology, Volume 44, Issue 7, Page 2189-2206, 15 June 2024.
The main goal of the research was to study the changes in hot weather events in Poland and to find the atmospheric conditions and teleconnections that prevail in their occurrence. The increasing number of hot days and heat waves and their longer‐lasting in Poland are associated with the above‐normal MSLP and blocking system formation over the country ...
Joanna Jędruszkiewicz   +2 more
wiley   +1 more source

Newly recorded and rare Desmidiales (Charophyta: Conjugatophyceae) from the Middle Urals, Russia [PDF]

open access: yes, 2016
New disributional data on 14 previously unrecorded or rare species and varieties of algae belonging to Closteriaceae, Desmidiaceae, Gonatozygaceae and Peni­aceae (order Desmidiales) are presented for the Middle Urals. Closterium cornu Ehrenberg ex Ralfs,
Andrey Shakhmatov
core   +2 more sources

Climate and atmospheric circulation during the Early and Mid‐Holocene inferred from lake‐carbonate oxygen‐isotope records from western Ireland

open access: yesJournal of Quaternary Science, Volume 39, Issue 1, Page 24-36, January 2024.
ABSTRACT The Early to Mid‐Holocene experienced marked climate change over the northern hemisphere mid‐latitudes in response to changing insolation and declining ice volume. Oxygen isotopes from lake sediments provide a valuable climate proxy, encoding information regarding temperature, hydroclimate and moisture source. We present oxygen‐isotope records
Jonathan A. Holmes   +5 more
wiley   +1 more source

Methods of palaeobiogeographic analysis [PDF]

open access: yes, 1981
Se señalan algunos de los problemas y dificultades con que se enfrentan lospaleobiogeógrafos, poniéndose de manifiesto numerosos modelos experimenta- les.
Hallam, A.
core   +1 more source

Biodiversity Evolution of a Shrub Betula nana L. Populations in the Urals

open access: yesInternational Journal of Forestry Research, Volume 2024, Issue 1, 2024.
Genetic polymorphism of B. nana along the Ural ridge is analyzed based on the variability of trnS-trnG, trnL-trnF, trnS-trnT, trnK1-trnK2, and matK1 cpDNA markers with the application of the RFLP method. Specimens of B. pubescens were additionally taken for comparative analysis. The research revealed 12 chlorotypes in B. nana and B.
Olga Cherepanova   +6 more
wiley   +1 more source

Some observed seasonal changes in extratropical general circulation: A study in terms of vorticity [PDF]

open access: yes, 1973
Extratropical eddy distributions in four months typical of the four seasons are treated in terms of temporal mean and temporal r.m.s. values of the geostrophic relative vorticity.
Reiter, E. R., Srivatsangam, S.
core   +1 more source

EXTRACTION OF CRISTOBALITE FROM MILKY-WHITE FORMS OF QUARTZ STUFF1 [PDF]

open access: yes, 1997
Natural quartz is one of die main sources of getting a unique material - quartz glass. Wide application of quartz glass in chemical and electronic industry, aviation and cosmonautics, fibre optics and computer techniques makes it absolutely indispensable.
Issaev, V., Oreshnikova, N.
core   +3 more sources

Impacts of climate change on vegetation distribution. No. 1: Climate change induced vegetation shifts in the palearctic region [PDF]

open access: yes, 2013
Global average temperature has increased and precipitation pattern has altered over the past 100 years due to increases in greenhouse gases. These changes will alter numerous site factors and biochemical processes of vegetative communities such as ...
Garamvölgyi , Ágnes, Hufnagel, Levente
core  

Fifty years of geophysical researches of glaciers in Institute of Geography, the Russian Academy of Sciences, 1966–2016

open access: yesЛëд и снег, 2016
In 1967‑2015, Institute of Geography of the USSR/Russian Academy of Sciences together with other organizations carried out field expeditions in different areas of mountain and polar glaciations in many regions: the Polar Urals, Caucasus, Pamir, Zailiysky
V. M. Kotlyakov, Yu. Ya. Macheret
doaj   +1 more source

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