Results 11 to 20 of about 1,402,177 (192)

Polar codes and polar lattices for the Heegard-Berger problem [PDF]

open access: yes, 2017
Explicit coding schemes are proposed to achieve the rate-distortion function of the Heegard-Berger problem using polar codes. Specifically, a nested polar code construction is employed to achieve the rate-distortion function for doublysymmetric binary ...
Gunduz, D, Ling, C, Liu, L, Shi, J
core   +2 more sources

Who cares about polar regions? Results from a survey of U.S. public opinion [PDF]

open access: yes, 2008
What do members of the general public know about polar regions, and how much do they care? Who knows or cares? This paper explores data from the General Social Survey (GSS), which in 2006 questioned a representative sample of more than 1800 U.S.
Hamilton, Lawrence C.
core   +2 more sources

Applications of biogeochemical models in different marine environments: a review

open access: yesFrontiers in Environmental Science, 2023
Marine biogeochemical models are an effective tool for formulating hypothesis and gaining mechanistic understanding of how an ecosystem functions. This paper presents a comprehensive review of biogeochemical models and explores their applications in ...
Kaltham A. Ismail, Maryam R. Al-Shehhi
doaj   +1 more source

La guerra del fin del Mundo: Sentido (y sinsentido) de la Historia

open access: yesRemate de Males, 2012
Sem ...
Antonio Cornejo Polar
doaj   +1 more source

Personal submersibles offer novel ecological research access to Antarctic waters: an example, with observations of the rarely encountered scyphozoan Stygiomedusa gigantea

open access: yesPolar Research, 2023
Underwater biological surveys have been conducted around the Antarctic continent for several decades, and our knowledge of the species present in the shallow waters (
Daniel M. Moore   +3 more
doaj   +1 more source

Two-dimensional chromatography on silica gel-loaded paper for the microanalysis of polar lipids

open access: yesJournal of Lipid Research, 1966
Two-dimensional chromatography on commercially available silica gel-loaded paper for the microanalysis of polar lipids from various tissues is described. All common phospholipids and their lyso derivatives can be reproducibly separated.
R.E. Wuthier
doaj   +1 more source

Networks of international co-authorship in journal articles about Antarctic research, 1998–2015

open access: yesPolar Research, 2020
This study seeks insight into the social structure of Antarctic research from 1998 to 2015 by examining peer-reviewed journal articles listed in the Science Citation Index of the Web of Science database.
Duckhee Jang, Soogwan Doh, Yongjin Choi
doaj   +1 more source

Climate Change Impacts on Polar Marine Ecosystems: Toward Robust Approaches for Managing Risks and Uncertainties

open access: yesFrontiers in Climate, 2022
The Polar Regions chapter of the Intergovernmental Panel on Climate Change's Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC) provides a comprehensive assessment of climate change impacts on polar marine ecosystems and associated ...
Geir Ottersen   +7 more
doaj   +1 more source

Polare maskuliniteter

open access: yesNordlit: Tidsskrift i litteratur og kultur, 2012
In this paper my aim is to read and understand the journal of Gerrit de Veer from the last journey of William Barents to the Arctic Regions in 1596 and the journal of captain Junge on his hunting trip from Tromsø to Svalbard in 1834.It is nearly 240 ...
Marit Anne Hauan
doaj   +1 more source

MHD Modeling of Mass Transfer Processes in Close Binary Stars

open access: yesGalaxies, 2022
A three-dimensional numerical model has been developed to study the flow structure in close binary systems with a magnetic field. The model uses a system of equations of modified magnetic hydrodynamics, which allows describing all the main dynamic ...
Andrey Zhilkin   +2 more
doaj   +1 more source

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