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Author |
Bart Van de Vijver, Carlos E. Wetzel, Luc Ector |
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Title  |
Analysis of the type material of Planothidium delicatulum (Bacillariophyta) with the description of two new Planothidium species from the sub-Antarctic Region |
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Journal |
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Year |
2018 |
Publication |
Fottea |
Abbreviated Journal |
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Volume |
18 |
Issue |
2 |
Pages |
200-211 |
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136 |
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ISSN |
18025439, 18054927 |
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18025439, 18054927 |
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yes |
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Serial |
7458 |
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Author |
Macelloni Giovanni, Leduc-Leballeur Marion, Brogioni Marco, Ritz Catherine, Picard Ghislain, |
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Title |
Analyzing and modeling the SMOS spatial variations in the East Antarctic Plateau |
Type |
Journal Article |
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Year |
2016 |
Publication |
REMOTE SENSING OF ENVIRONMENT |
Abbreviated Journal |
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Volume |
180 |
Issue |
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Pages |
193-204 |
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Keywords |
Antarctica, Ice sheet temperature, Microwave emission model, SMOS, |
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Abstract |
The SMOS brightness temperature (TB) collected on the East Antarctic Plateau revealed spatial signatures at L-band that have never before been observed when only higher-frequency passive microwave observations were available, and this has opened up a new field of research. Because of the much greater penetration depth, modeling the microwave ice sheet emission requires taking into account not only snow conditions on the surface, but should also include glaciological information. Even if the penetration depth of the L-band is not well known due to the uncertainty on the imaginary part of the ice permittivity, it is likely to be of the order of several hundreds of meters, which means that the temperature of the ice over a depth of nearly 1000 m influences the emission. Over such a depth, the temperature is related to both the surface conditions and to the ice sheet thickness, which in turn depends on the bedrock topography and on other glaciological variables. The present paper aims to provide a thorough theoretical explanation of the observed TB spatial variation close to the Brewster angle at vertical polarization, in order to limit the effect of surface and vertical density variability in the firn. In order to provide reliable inputs to the microwave emission models used for simulating TB data, an in-depth analysis of the temperature profiles was performed by means of glaciological models. The comparison between simulated and observed data over three transects totalling 2000 km in East Antarctica pointed out that, whereas the emission models are capable of explaining the TB spatial variations of several kelvins (0.7 and 2.9 K), they are unable to predict its absolute value correctly. This study also shows that the main limiting factor in simulating low-frequency microwave data is the uncertainty in the currently available imaginary part of the ice permittivity. |
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Programme |
902,1110 |
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Bachelor's thesis |
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0034-4257 |
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yes |
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Serial |
6426 |
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Author |
Byrne N., Birrien J. L., Postec A., Prieur D. & Le Romancer M. |
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Journal Article |
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Year |
2008 |
Publication |
Extremophiles |
Abbreviated Journal |
Extremophiles |
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408 |
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ISSN |
1431-0651 |
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yes |
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Serial |
5072 |
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Author |
Hagelberg Erika, Hofreiter Michael, Keyser Christine, |
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Title |
Ancient DNA: the first three decades |
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Journal Article |
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Year |
2015 |
Publication |
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
Abbreviated Journal |
Philos. Trans. R. Soc. Lond., B, Biol. Sci. |
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Volume |
370 |
Issue |
1660 |
Pages |
20130371 |
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Abstract |
When Russell Higuchi, Allan Wilson and co-workers reported the molecular cloning of a small fragment of DNA from a piece of dry tissue of a quagga, an extinct member of the horse family [[1][1]], they could hardly imagine that 30 years later several hundred scientists would meet at The Royal Society |
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1038 |
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0962-8436 |
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yes |
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Call Number |
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Serial |
6340 |
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Journal |
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Year |
2018 |
Publication |
Science |
Abbreviated Journal |
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Volume |
360 |
Issue |
6384 |
Pages |
111-114 |
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1038 |
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ISSN |
0036-8075, 1095-9203 |
ISBN |
0036-8075, 1095-9203 |
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yes |
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Call Number |
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Serial |
7398 |
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Author |
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Title |
Ancient genomic changes associated with domestication of the horse |
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Journal |
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Year |
2017 |
Publication |
Science |
Abbreviated Journal |
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Volume |
356 |
Issue |
6336 |
Pages |
442-445 |
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Abstract |
Ancient genomics of horse domestication The domestication of the horse was a seminal event in human cultural evolution. Librado et al. obtained genome sequences from 14 horses from the Bronze and Iron Ages, about 2000 to 4000 years ago, soon after domestication. They identified variants determining coat color and genes selected during the domestication process. They could also see evidence of admixture with archaic horses and the demography of the domestication process, which included the accumulation of deleterious variants. The horse appears to have undergone a different type of domestication process than animals that were domesticated simply for food. Science, this issue p. 442 The genomic changes underlying both early and late stages of horse domestication remain largely unknown. We examined the genomes of 14 early domestic horses from the Bronze and Iron Ages, dating to between ~4.1 and 2.3 thousand years before present. We find early domestication selection patterns supporting the neural crest hypothesis, which provides a unified developmental origin for common domestic traits. Within the past 2.3 thousand years, horses lost genetic diversity and archaic DNA tracts introgressed from a now-extinct lineage. They accumulated deleterious mutations later than expected under the cost-of-domestication hypothesis, probably because of breeding from limited numbers of stallions. We also reveal that Iron Age Scythian steppe nomads implemented breeding strategies involving no detectable inbreeding and selection for coat-color variation and robust forelimbs. The genomes of 14 ancient horses reveal selection during domestication stages and a recent loss of diversity. The genomes of 14 ancient horses reveal selection during domestication stages and a recent loss of diversity. |
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1038 |
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0036-8075, 1095-9203 |
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0036-8075, 1095-9203 |
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yes |
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Call Number |
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Serial |
6915 |
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Author |
Vana J., Ochyra R., Lebouvier M. & Cykowska B. |
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Title |
Andrewsianthus marionensis (S.W. Arnell) Grolle. [in Iles Kerguelen]. In: BLOCKEEL T. L. (ed.), New national and regional bryophyte records, 20 |
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Journal Article |
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Year |
2009 |
Publication |
JOURNAL OF BRYOLOGY |
Abbreviated Journal |
J. Bryol. |
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Volume |
31 |
Issue |
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Pages |
54 |
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136 |
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ISSN |
0373-6687 |
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yes |
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Serial |
5779 |
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Author |
Vana J., Ochyra R., Lebouvier M., Cykowska B. & Bednarek-Ochyra H. |
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Title |
Aneura subcanaliculata R.M. Schust. [in Ile Amsterdam]. In: BLOCKEEL T. L. (ed.), New national and regional bryophyte records, 21 |
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Journal Article |
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Year |
2009 |
Publication |
JOURNAL OF BRYOLOGY |
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J. Bryol. |
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Volume |
31 |
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133 |
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136 |
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0373-6687 |
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yes |
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5782 |
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2021 |
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Frontiers in Marine Science |
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8 |
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1201 |
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ISSN |
2296-7745 |
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8326 |
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Title |
Animal Energyscape: A new dimension for Arctic environmental spatial planning. Arctic Biodiversity Congress, Rovaniemi (Finland) |
Type |
Conference - International - Communication |
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Year |
2018 |
Publication |
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388 |
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Bachelor's thesis |
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Arctic Biodiversity Congress 2018 |
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Call Number |
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7347 |
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