Results 31 to 40 of about 7,018 (133)

Antarctic Ocean Legacy: Towards Protection of the Weddell Sea Region [PDF]

, 2014
Ice-bound, wild and remote, the Weddell Sea is a large, deep embayment nestled between the Antarctic Peninsula and Cape Norvegia. Lying south of the Atlantic Ocean, it is one of the most intact ecosystems in the world.At its widest, it is 2,000 km across,

core  

Dehydrogenated polycyclic aromatic hydrocarbons and UV bump

, 2008
Recent calculations have shown that the UV bump at about 217.5 nm in the extinction curve can be explained by a complex mixture of PAHs in several charge states.
Becke, Braga, C. Cecchi-Pestellini, C. Joblin, Cecchi-Pestellini, Chhowalla, Clar, Clayton, Draine, Duley, Duley, Duley, Duley, Ekern, Fitzpatrick, Frish, G. Malloci, G. Mulas, Gingell, Iglesias-Groth, Joblin, Jones, Le Page, Malloci, Malloci, Malloci, Marques, Marques, Mennella, Mulas, Papoular, Perdew, Schnaiter, Seaton, Stecher, Stecher   +35 more
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The coupled occurrence of Cimmeriella-Jakutoproductus (Brachiopoda: Productidina) in Patagonia : implications for Early Permian high to middle paleolatitudinal correlations and paleoclimatic reconstruction [PDF]

, 2010
The brachiopod species Jakutoproductus sabattiniae sp. nov. and Cimmeriella willi sp. nov. from the Cisuralian deposits of the Tepuel-Genoa basin are described here.
Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina). Laboratorio de Investigaciones en Evolución y Biodiversidad, Pagani, María Alejandra, Taboada, Arturo César   +2 more
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Topographic Anchoring and the “Silent Period” of Deep‐Water Polynyas in the 90°W–90°E Antarctic Sector

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Antarctic deep‐water polynyas act as critical windows driving deep ocean ventilation, exerting profound impacts on the global thermohaline circulation and biogeochemical cycles. Utilizing high‐resolution satellite remote sensing and ocean reanalysis data from 2003 to 2022, this study identified eight recurring deep‐water polynyas within the ...
Xiaole Fan, Xiaowen Luo, Hongyang Wan, Jiaxin Cui, Jiayang Chen, Qiyu Feng   +5 more
wiley   +1 more source

Electronic spectroscopy of medium-sized polycyclic aromatic hydrocarbons: Implications for the carriers of the 2175 {\AA} UV bump

, 2010
Mixtures of polycylic aromatic hydrocarbons (PAHs) have been produced by means of laser pyrolysis. The main fraction of the extracted PAHs were primarily medium-sized, up to a maximum size of 38 carbon atoms per molecule.
Allain, Arnoult, Beegle, Clayton, Draine, Duley, Duley, Ehrenfreund, Frisch, Jenniskens, Jäger, Jäger, Leger, Léger, Mennella, Papoular, Salama, Salama, Schnaiter, Troy, Vijh   +20 more
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THE ‘OTHERS’ OF TENT CITIES: Reconstruction of Social Order Through Emotions

International Journal of Urban and Regional Research, Volume 50, Issue 2, Page 486-504, March 2026.
Abstract Following the earthquakes in Türkiye on 6 February 2023, survivors continued their daily lives in tent cities, which emerged as a new heterotopic space where the boundaries between public and private spheres became intertwined. The transition from one's own ‘castle’ to a communal living space filled with uncertainties has heightened the ...
Handan Akyigit, Sinem Yildirimalp, Hatice Turut, Fatma Zehra Tocoglu, Buşra Yigit   +4 more
wiley   +1 more source

Modular classes of Q-manifolds: a review and some applications [PDF]

, 2017
A Q-manifold is a supermanifold equipped with an odd vector field that squares to zero. The notion of the modular class of a Q-manifold -- which is viewed as the obstruction to the existence of a Q-invariant Berezin volume -- is not well know.
Bruce, Andrew James
core   +2 more sources

Functional Activity of Hip Muscles in Patients With Severe Dysplastic Coxarthrosis

Advances in Orthopedics, Volume 2026, Issue 1, 2026.
Background Despite recent advances in surgical treatment of dysplastic coxarthrosis, muscular dysfunction of the affected extremity and attempts to improve its functional capacity represent a significant problem. Materials and Methods A prospective case‐match study of 50 patients with severe dysplastic coxarthrosis was conducted.
Dmytro Poluliakh, Sergii Gerasymenko, Mykhailo Poluliakh, Andrii Babko, Igor Lazarev, Shashank Kaushik   +5 more
wiley   +1 more source

High Antarctic coastal productivity in polynyas revealed by considering remote sensing ice‐adjacency effects

Limnology and Oceanography Letters, Volume 10, Issue 6, Page 945-956, December 2025.
Abstract Ocean color‐based estimates of Antarctic net primary productivity (NPP) have indicated low nearshore productivity in ice‐adjacent waters, contrasting with coupled physical–biogeochemical models. To understand this discrepancy, we assessed satellite records of polynya NPP by comparing field data with two satellite imagery datasets derived using
Hilde Oliver, Jessica S. Turner, Alexandre Castagna, Henry Houskeeper, Heidi Dierssen   +4 more
wiley   +1 more source

Coercion, compliance, and the collapse of the Soviet command economy [PDF]

Are command systems that rest on coercion inherently unstable, and did the Soviet economy collapse for this reason? Until it collapsed, the Soviet economy did not appear unstable. Why, then, did it collapse? A game between a dictator and a producer shows
Harrison, Mark
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