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Author |
Moreau C. & Duhamel G. |
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Journal Article |
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Year |
1997 |
Publication |
Bulletin de la societe zoologique de france |
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122 |
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1 |
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45-57 |
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180 |
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0037-962X |
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1549 |
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Author |
Villante, U.; De Lauretis, M.; Francia, P.; Vellante, M.; Piancatelli, A. |
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Journal Article |
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Year |
2006 |
Publication |
Space science reviews |
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Volume |
122 |
Issue |
1 |
Pages |
107-117 |
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1130 |
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0038-6308 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5531 |
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Author |
Dufeu M., Martin-Tanguy J. & Hennion F. |
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Title |
Temperature-dependent changes of amine levels during early seedling development of the cold-adapted subantarctic crucifer *Pringlea antiscorbutica|. |
Type |
Journal Article |
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Year |
2003 |
Publication |
Physiologia plantarum |
Abbreviated Journal |
Physiol Plant |
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Volume |
118 |
Issue |
2 |
Pages |
164-172 |
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136 |
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ISSN |
0031-9317 |
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yes |
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Serial |
2143 |
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Author |
Agabi, A.; Aristidi, E.; Azouit, M.; Fossat, E.; Martin, F.; Sadibekova, T.; Vernin, J.; Ziad, A. |
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Title |
First Whole Atmosphere Nighttime Seeing Measurements at Dome C, Antarctica |
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Journal Article |
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Year |
2006 |
Publication |
The Publications of the Astronomical Society of the Pacific |
Abbreviated Journal |
Publ. Astron. Soc. Pac. |
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Volume |
118 |
Issue |
840 |
Pages |
344-348 |
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Keywords |
Site Testing |
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Abstract |
We report site-testing results obtained in the nighttime during the polar autumn and winter at Dome C. These results were collected during the first Concordia winterover by A. Agabi. They are based on seeing and isoplanatic angle monitoring, as well as in situ balloon measurements of the refractive index structure constant profiles C2n(h). Atmosphere is divided into two regions: (1) a 36 m high surface layer responsible for 87% of the turbulence, and (2) a very stable free atmosphere above, with a median seeing of 0.36“ +/- 0.19” at an elevation of h=30 m. The median seeing measured with a differential image motion monitor placed on top of an 8.5 m high tower is 1.3“ +/- 0.8”. |
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Programme |
908 |
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Thesis |
Bachelor's thesis |
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ISSN |
0004-6280 |
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yes |
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Call Number |
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Serial |
3180 |
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Author |
Kenyon, S. L.; Lawrence, J. S.; Ashley, M. C. B.; Storey, J. W. V.; Tokovinin, A.; Fossat, E. |
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Title |
Atmospheric Scintillation at Dome C, Antarctica: Implications for Photometryand Astrometry |
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Journal Article |
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Year |
2006 |
Publication |
The Publications of the Astronomical Society of the Pacific |
Abbreviated Journal |
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Volume |
118 |
Issue |
944 |
Pages |
924-932 |
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Programme |
908 |
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Thesis |
Bachelor's thesis |
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ISSN |
0004-6280 |
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yes |
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Call Number |
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Serial |
3972 |
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Author |
Douglas Thomas A, Domine Florent, Barret Manuel, Anastasio Cort, Beine Harry J, Bottenheim Jan, Grannas Amanda, Houdier Stephan, Netcheva Stoyka, Rowland Glenn, Staebler Ralf, Steffen Alexandra, |
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Title |
Frost flowers growing in the Arctic ocean-atmosphere-sea ice-snow interface: 1. Chemical composition |
Type |
Journal Article |
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Year |
2012 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
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Volume |
117 |
Issue |
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Pages |
D00R09 ST - |
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Keywords |
frost flowers polar atmospheric chemistry sea ice 0738 Cryosphere: Ice (1863) 0750 Cryosphere: Sea ice (4540) 0793 Cryosphere: Biogeochemistry (0412, 0414, 1615, 4805, 4912) 1022 Geochemistry: Composition of the hydrosphere 1050 Geochemistry: Marine geochemistry (4835, 4845, 4850), |
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Abstract |
Frost flowers, intricate featherlike crystals that grow on refreezing sea ice leads, have been implicated in lower atmospheric chemical reactions. Few studies have presented chemical composition information for frost flowers over time and many of the chemical species commonly associated with Polar tropospheric reactions have never been reported for frost flowers. We undertook this study on the sea ice north of Barrow, Alaska to quantify the major ion, stable oxygen and hydrogen isotope, alkalinity, light absorbance by soluble species, organochlorine, and aldehyde composition of seawater, brine, and frost flowers. For many of these chemical species we present the first measurements from brine or frost flowers. Results show that major ion and alkalinity concentrations, stable isotope values, and major chromophore (NO3- and H2O2) concentrations are controlled by fractionation from seawater and brine. The presence of these chemical species in present and future sea ice scenarios is somewhat predictable. However, aldehydes, organochlorine compounds, light absorbing species, and mercury (part 2 of this research and Sherman et al. (2012)) are deposited to frost flowers through less predictable processes that probably involve the atmosphere as a source. The present and future concentrations of these constituents in frost flowers may not be easily incorporated into future sea ice or lower atmospheric chemistry scenarios. Thinning of Arctic sea ice will likely present more open sea ice leads where young ice, brine, and frost flowers form. How these changing ice conditions will affect the interactions between ice, brine, frost flowers and the lower atmosphere is unknown. |
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Programme |
1017 |
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ISSN |
0148-0227 |
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Approved |
yes |
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Call Number |
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Serial |
1740 |
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Author |
Francois J.M., Altintas A. & Gerday C. |
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Title |
Characterization of the single Tyrosine containing Troponin C from Lungfish white muscle. Comparison with several fast skeletal muscle Troponin C's from fish species. |
Type |
Journal Article |
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Year |
1997 |
Publication |
Comparative biochemistry and physiology a-molecular & integrative physiology |
Abbreviated Journal |
Comp. Biochem. Physiol., Part A Mol. Integr. Physiol. |
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Volume |
117B |
Issue |
4 |
Pages |
589-598 |
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Abstract |
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Programme |
165 |
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ISSN |
1095-6433 |
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Approved |
yes |
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Call Number |
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Serial |
1413 |
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Author |
Eldershaw TP, Duchamp C, Ye J, Clark MG, Colquhoun EQ |
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Title |
Potential for nonshivering thermogenesis in perfused chicken (Gallus domesticus) muscle. |
Type |
Journal Article |
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Year |
1997 |
Publication |
Comparative biochemistry and physiology a-molecular & integrative physiology |
Abbreviated Journal |
Comp. Biochem. Physiol., Part A Mol. Integr. Physiol. |
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Volume |
117A |
Issue |
4 |
Pages |
545-554 |
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Abstract |
The humoral modulation of resting muscle heat production of chickens (Gallus
domesticus) was investigated in vitro. The resting distal lower limb was perfused
via the popliteal artery at 25 degrees C without erythrocytes at constant flow.
The preparation was stable for at least 3 hr, showing a constant oxygen uptake
(MO2) and perfusion pressure as well as adequately maintaining muscle energy
charge and creatine phosphate: creatine ratio. Noradrenaline (NOR), adrenaline
(ADR) and serotonin (5-HT) each caused a dose-dependent rise in perfusion
pressure. NOR and ADR evoked increased MO2 at low doses eventually followed by
decreased MO2 at higher agonist concentrations. 5-HT gave smaller but
qualitatively similar MO2 effects. The actions of 50 nM NOR were blocked by
prazosin (10 microM) and nitroprusside (0.5 mM), but not altered by propranolol
(10 microM). NOR-induced stimulatory MO2 changes in the presence of
pharmacological concentrations (1 microM) of glucagon were more pronounced and
the thermogenic concentration range of NOR was increased. Taken together, these
in vitro findings demonstrate a potential for vasoconstrictor-controlled muscle
nonshivering thermogenesis in birds as in marsupials and mammals, suggesting that
vascular control of muscle MO2 may be a widespread biological mechanism. The
possible implications of these findings for avian nonshivering thermogenesis are
discussed. |
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131 |
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1095-6433 |
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yes |
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Serial |
1812 |
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Author |
France J L, Reay H J, King M D, Voisin D, Jacobi H W, Domine F, Beine H, Anastasio C, MacArthur A, Lee-Taylor J, |
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Title |
Hydroxyl radical and NOx production rates, black carbon concentrations and light-absorbing impurities in snow from field measurements of light penetration and nadir reflectivity of onshore and offshore coastal Alaskan snow |
Type |
Journal Article |
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Year |
2012 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
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Volume |
117 |
Issue |
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Pages |
D00R12 ST - |
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Keywords |
Barrow OH black carbon e-folding depth nitrate photochemistry 0736 Cryosphere: Snow (1827, 1863) 0770 Cryosphere: Properties 0798 Cryosphere: Modeling (1952, 4316), |
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1017 |
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0148-0227 |
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yes |
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Serial |
1698 |
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Title |
Structure, specific surface area and thermal conductivity of the snowpack around Barrow, Alaska |
Type |
Journal Article |
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Year |
2012 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
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Volume |
117 |
Issue |
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Pages |
D00R14 ST - |
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Keywords |
Arctic atmospheric chemistry climate contaminants polar snow 0475 Biogeosciences: Permafrost, cryosphere, and high-latitude processes (0702, 0716) 0718 Cryosphere: Tundra (9315) 0736 Cryosphere: Snow (1827, 1863) 0750 Cryosphere: Sea ice (4540) 0792 Cryosphere: Contaminants (0432), |
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Programme |
1017 |
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0148-0227 |
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yes |
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Serial |
1337 |
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