Results 121 to 130 of about 184,442 (345)

Comments on Allan Bomhard, “The Origins of Proto-Indo-European: The Caucasian substrate hypothesis” [PDF]

open access: yes, 2019
The main claims of Bomhard's paper are that PIE originated in Central Asia, which accounts for its Eurasiatic properties such as resemblant pronouns (Uralic, IE, Kartvelian, Turkic, Mongolic, Tungusic) and originally agglutinating morphology; then it ...
Nichols, J
core  

No Consistent Evidence for Advancing or Delaying Trends in Spring Phenology on the Tibetan Plateau [PDF]

open access: yes, 2017
Vegetation phenology is a sensitive indicator of climate change and has significant effects on the exchange of carbon, water, and energy between the terrestrial biosphere and the atmosphere.
Badeck   +69 more
core   +3 more sources

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl   +8 more
wiley   +1 more source

The Eurasian steppe belt: Status quo, origin and evolutionary history

open access: yesTurczaninowia, 2019
We present a comprehensive review of the characteristics and structure of the Eurasian steppe and of its evolutionary history in space and time. During the last decades, tremendous advances in research methods in earth and palaeontological sciences have ...
H. Herbert   +6 more
semanticscholar   +1 more source

Response of plant traits of Stipa breviflora to grazing intensity and fluctuation in annual precipitation in a desert steppe, northern China

open access: yes, 2020
As a grassland type distributed in the desert steppe with warmer climate in the steppe region of central Asia, Stipa breviflora steppe has the following characteristics, i.e. transition and vulnerability.
Ye Ruhan   +13 more
semanticscholar   +1 more source

Estimating Rain‐Specific Attenuation at Extremely High Frequencies From Disdrometer Measurements at Various Climate Zones in the US

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The raindrop size distribution (DSD) plays an essential role in understanding rain attenuation effects at extremely high frequencies (EHFs). Over 1 year of DSD measurements was taken at different Köppen–Geiger climate classifications within the United States. Optical disdrometers from Thies Clima were used to measure both the size and velocity
Eugene S. Hong   +3 more
wiley   +1 more source

RETRACTED: Russian-Kazakh border: Sustainability and typology by ethnic, historical and natural characteristics [PDF]

open access: yesBIO Web of Conferences
See the retraction notice BIO Web of Conferences 116, 00001 (2024), https://doi.org/10.1051/bioconf ...
Sokolov Aleksandr, Rudneva Oksana
doaj   +1 more source

Metabolic fingerprinting to assess the impact of salinity on carotenoid content in developing tomato fruits [PDF]

open access: yes, 2016
As the presence of health-promoting substances has become a significant aspect of tomato fruit appreciation, this study investigated nutrient solution salinity as a tool to enhance carotenoid accumulation in cherry tomato fruit (Solanum lycopersicum L ...
Hanssens, Jochen   +3 more
core   +2 more sources

Shifts in the Genetic Landscape of the Western Eurasian Steppe Associated with the Beginning and End of the Scythian Dominance.

open access: yesCurrent Biology, 2019
The Early Iron Age nomadic Scythians have been described as a confederation of tribes of different origins, based on ancient DNA evidence [1-3]. It is still unclear how much of the Scythian dominance in the Eurasian Steppe was due to movements of people ...
M. Järve   +45 more
semanticscholar   +1 more source

Forgoing Nuclear: Nuclear Power Plant Closures and Carbon Emissions in the United States

open access: yesSouthern Economic Journal, EarlyView.
ABSTRACT This paper examines the effect of nuclear power plant decommissioning on electricity generation and carbon emissions in the United States. Using data on nuclear reactor closures in the United States between 1993 and 2022 and data on state‐level carbon emissions and electricity generation from the Energy Information Administration (EIA), this ...
Luke Petach
wiley   +1 more source

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