Results 111 to 120 of about 245,388 (317)
Land Degradation &Development, EarlyView.ABSTRACT This study examines the impact of geological, marine and anthropogenic sources on metal and metalloid concentrations in the forefields of four glaciers (Ecology, Sphinx, Tower and Windy) on King George Island, Antarctic. Water samples were collected at the beginning and end of the hydrological season (austral summer, December 2021 to February ...
Joanna Potapowicz +8 more
wiley +1 more source
Геологія і корисні копалини Світового океану, 2019 It is shown that the continent of Antarctica, where the South Geographical Pole of the Earth is located, is the geodynamic center of formation of the primary crust of the planet. It is in the southern region of the planet, in accordance with the rules of
S.M. Yesypovych
doaj +1 more source
CHEMICAL COMPOSITION CHANGE OF SUBSURFACE SNOW IN EAST ANTARCTICA WITH DISTANCE FROM THE COAST
Лëд и снег, 2015 The paper presents data on chemical composition of snow in theAntarcticasampled along the first tractor traverse during the 53th Russian Antarctic Expedition from Station Progress (the sea coast) to Station Vostok (1,276 kmfrom Progress).
L. P. Golobokova +4 more
doaj +1 more source
Amphipod crustaceans in the diet of pygoscelid penguins of the King George Island, South Shetland Islands, Antarctica [PDF]
, 1981 Paper received 10 December 1980.Information is presented concerning amphipod crustaceans eaten by three penguin species breeding on King George Island: Pygoscelis adeliae, P. antarctica and P. papua.
Jażdżewski, Krzysztof
core
Visual recovery of desert pavement surfaces following impacts from vehicle and foot traffic in the Ross Sea region of Antarctica [PDF]
, 2013 Sites of past human activity were investigated to assess the visual recovery of the desert pavement following impacts from human trampling and vehicle traffic.
Balks, Megan R. +2 more
core +2 more sources
Macromolecular Chemistry and Physics, EarlyView.Stable and biocompatible PCDA‐PGA nanoparticles for real‐time tracking in biological assays, efficiently taken up by MCF7 cells and nematodes. ABSTRACT This study presents novel mixed nanosystems composed of 10,12‐pentacosadiynoic acid (PCDA) and biodegradable, enzymatically synthesized polymers—PGA, PGAHEX, or PGABDM — designed to alter and exploit ...
Benedetta Brugnoli +10 more
wiley +1 more source
Лëд и снег, 2015 Temperature gradients in the upper layers of the snow pack are of importance for studying the emissivity properties of the snow surface with respect to microwaves used in remote sensing as well as for the heat and mass transfer in snow thickness ...
E. Lefebvre +5 more
doaj +1 more source
Sun exposure drives Antarctic cryptoendolithic community structure and composition [PDF]
, 2019 The harsh environmental conditions of the ice-free regions of Continental Antarctica are considered one of the closest Martian analogues on Earth. There, rocks play a pivotal role as substratum for life and endolithism represents a primary habitat for ...
Coleine, Claudia +4 more
core
Synthesis of Poly(Itaconate)s With High Monomer Conversion Applying Emulsion Polymerization
Journal of Polymer Science, Volume 63, Issue 6, Page 1284-1296, 15 March 2025.Itaconic acid and its derivatives are a promising and bio‐based substitute for oil‐based polymers such as acrylates. In this study, the optimization of polymerization of itaconic acid esters is described by applying emulsion polymerization leading to high reaction conversions and low residual monomer contents. ABSTRACT Itaconic acid and its derivatives
S. Charlotte Fischer von Mollard +5 more
wiley +1 more source
The Mid-Pleistocene Transition and the Vostok Oldest Ice Challenge
Лëд и снег, 2015 Marine records indicate a dramatic change in the predominant periodicity of climate variability, from about 40 ka to about 100 ka around one million years ago.
V. Ya. Lipenkov, D. Raynaud
doaj +1 more source