Results 21 to 30 of about 386 (139)

Middle to Late Pleistocene landscape evolution and glacial dynamics in the Eastern Alps: the Gröbminger Mitterberg record, Austria

Boreas
Glacial erosion during the Last Glacial Maximum (LGM) has removed much evidence of earlier glaciations and interglacials in the European Alps. At Gröbminger Mitterberg (GM), beneath a blanket of LGM till, a distinctive sediment archive preserves deposits
Gerit E. U. Griesmeier, Daniel P. Le Heron, Christopher Lüthgens, Gustav Firla, Bernhard Salcher, Fabian Dremel, Jan‐Christoph Otto, Jürgen M. Reitner   +7 more
doaj   +2 more sources

Improving Genotype Imputation in High-Dimensional Pharmacogenomics Using Multiple Imputation: Evaluation with Machine Learning Approaches. [PDF]

Clin Pharmacol Ther
Multiple imputation is well‐established for handling missing data, yet its use in high‐dimensional genetic datasets remains limited. Using pharmacokinetic tuberculosis simulations and SNP data (1000 Genomes Project), we compared machine learning (ML) and traditional approaches (e.g., mean imputation and complete‐case analysis) for imputation and ...
Asiimwe IG, You T, Carr DF, Pirmohamed M, Davies G, Jorgensen AL, UNITE4TB Consortium.   +6 more
europepmc   +2 more sources

PLEISTOCENE-HOLOCENE PALAEOENVIRONMENTAL RECORDS FROM PERMAFROST SEQUENCES AT THE KARA SEA COAST (NW SIBERIA, RUSSIA)

Geography, Environment, Sustainability, 2013
The Kara Sea coasts were studied using comprehensive stratigraphic and geocryological methods. The paper presents the new analytical studies of ground ice and Quaternary deposits of Western Taymyr and presents the results of spore and pollen ...
Irina Streletskaya, Evgeny Gusev, Alexander Vasiliev, Gleb Oblogov, Anatoly Molodkov   +4 more
doaj   +1 more source

Interferência em misturas de feijão Interference in bean mixtures

Ciência Rural, 2004
O presente trabalho teve como objetivos examinar a magnitude dos efeitos de interferência em cultivares de feijão, quando em mistura, empregando um novo coeficiente (Coeficiente de Interferência) e verificar a existência de correlações entre rendimento ...
Janete Joanol da Silveira Mastrantonio, Irajá Ferreira Antunes, Elio Paulo Zonta, Beatriz Marta Emygdio, Carlos Costa, Lucia Lobato, Sergio Delmar dos Anjos e Silva, Expedito Paulo Silveira   +7 more
doaj   +1 more source

Establishing a Luminescence-Based Chronostratigraphy for the Last Glacial-Interglacial Cycle of the Loess-Palaeosol Sequence Achajur (Armenia)

Frontiers in Earth Science, 2021
The loess-palaeosol section Achajur is part of the Sevkar loess area in north-eastern Armenia and comprises three prominent pedocomplexes with intercalated loess units, probably spanning at least three glacial-interglacial cycles.
Johanna Lomax, Daniel Wolf, Urs Tilmann Wolpert, Lilit Sahakyan, Hayk Hovakimyan, Dominik Faust, Markus Fuchs   +6 more
doaj   +1 more source

Last glacial loess dynamics in the Southern Caucasus (NE-Armenia) and the phenomenon of missing loess deposition during MIS-2

Scientific Reports, 2022
The Marine Isotope Stage (MIS) 2 is considered the coldest, driest and stormiest period during the last Glacial-Interglacial cycle in large parts of Eurasia.
Daniel Wolf, Johanna Lomax, Lilit Sahakyan, Hayk Hovakimyan, Jörn Profe, Philipp Schulte, Hans von Suchodoletz, Christiane Richter, Ulrich Hambach, Markus Fuchs, Dominik Faust   +10 more
doaj   +1 more source

EMERGENCE OF MICROLITHIC PRODUCTION IN MONGOLIA: RESEARCH TERMINOLOGY AND CHRONSTRATIGRAPHIC POSITION OF LITHIC INDUSTRIES IN EASTERN AND SOUTHERN ASIA

Теория и практика археологических исследований, 2021
Territory of Mongolia is situated in the center of Asia, a crossroad of the potential migration routes, that connect different Eurasian macroregions. Here an example of earliest appearance and long-term existence of small blade and microblade production ...
А.М. Хаценович, Е.П. Рыбин, M.-Э. Ганболд, Д. Базаргур   +3 more
doaj   +1 more source

Approaching a new theory on Caspian Sea response to global climate changes during MIS2 - MIS1: generalization and reassessment of 18O data

Limnology and Freshwater Biology, 2022
Abstract. The study represents correlation 18O records from the Caspian basin together with available stable oxygen data on the continual sequence of deep-sea cores and on Kara-Bogaz-Gol Gulf, nearby lakes, and caves to complete palaeogeographical reconstruction of the Caspian Sea region.
A.A. Berdnikova, N.T. Tkach, M.A. Zenina
openaire   +1 more source

Climate and ice sheet dynamics in Patagonia throughout marine isotope stages 2 and 3 [PDF]

Climate of the Past
During the Last Glacial Maximum (LGM, ∼ 23 000 to 19 000 years ago), the Patagonian Ice Sheet (PIS) covered the central chain of the Andes between ∼ 38 to 55° S.
A. Castillo-Llarena, A. Castillo-Llarena, F. Retamal-Ramírez, F. Retamal-Ramírez, F. Retamal-Ramírez, J. Bernales, M. Jacques-Coper, M. Jacques-Coper, M. Jacques-Coper, M. Prange, I. Rogozhina, I. Rogozhina, I. Rogozhina   +12 more
doaj   +1 more source

Foraminifer and Ostracod Occurrence in a Cool-Water Carbonate Factory of the Cape Adare (Ross Sea, Antarctica): A Key Lecture for the Climatic and Oceanographic Variations in the Last 30,000 Years

Geosciences, 2020
Foraminifers and ostracods were studied in a gravity-core recovered near Cape Adare (Ross Sea, Antarctica) with the aim of identifying the climatic and oceanographic variations during the last 30 ka.
Romana Melis, Gianguido Salvi
doaj   +1 more source