Results 61 to 70 of about 2,868,735 (385)

Tough and Temperature‐Resistant Material Based on Bombyx mori Silk Fibroin

Advanced Science, EarlyView.
We propose a biomimetic “Hydration‐Crystallization Locking” (HCL) strategy inspired by Bombyx mori spinning to enhance silk fibroin (SF) performance in extreme temperatures. A flexible fibroin membrane (FFM) shows high strength, toughness, and shape retention under −196°C and 70°C.
Meng Zhang, Quan Wan, Yajun Shuai, Qi Wu, Jing Yu, Mingzheng Fang, Yuqing Zhang, Chuanbin Mao, Mingying Yang   +8 more
wiley   +1 more source

Evolution of ozone depletion on Antarctic and sub-Antarctic regions (1979-2012)

SPIE Proceedings, 2013
At the middle eighties, strong stratospheric ozone depletion during spring was discovered over Antarctica. Since then, the scientific community has put large efforts in performing studies directed to evaluate the magnitude and consequences of this depletion and to take the necessary measures to revert the situation to the scenarios before 1970. In 1987,
Diaz, Susana Beatriz, Paladini, Alejandro Alberto, Deferrari, Guillermo Alejandro, Vrsalovic, Jazmin   +3 more
openaire   +2 more sources

Joint inversion estimate of regional glacial isostatic adjustment in Antarctica considering a lateral varying Earth structure (ESA STSE Project REGINA) [PDF]

, 2017
A major uncertainty in determining the mass balance of the Antarctic ice sheet from measurements of satellite gravimetry, and to a lesser extent satellite altimetry, is the poorly known correction for the ongoing deformation of the solid Earth caused by
Bamber, Jonathan L., Clarke, Peter J., Drinkwater, Mark R., Horvath, Alexander, Horwath, Martin, Klemann, Volker, Konrad, Hannes, Martín-Español, Alba, Pail, Roland, Petrie, Elizabeth J., Sasgen, Ingo, Wouters, Bert   +11 more
core   +3 more sources

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

The Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source

Southern Hemisphere mid- and high-latitudinal AOD, CO, NO2, and HCHO: spatiotemporal patterns revealed by satellite observations

Progress in Earth and Planetary Science, 2019
To assess air pollution emitted in Southern Hemisphere mid-latitudes and transported to Antarctica, we investigate the climatological mean and temporal trends in aerosol optical depth (AOD), carbon monoxide (CO), nitrogen dioxide (NO2), and formaldehyde (
Dha Hyun Ahn, Taejin Choi, Jhoon Kim, Sang Seo Park, Yun Gon Lee, Seong-Joong Kim, Ja-Ho Koo   +6 more
doaj   +1 more source

Microplastics in gentoo penguins from the Antarctic region [PDF]

Scientific Reports, 2019
AbstractThere is growing evidence that microplastic pollution (<5 mm in size) is now present in virtually all marine ecosystems, even in remote areas, such as the Arctic and the Antarctic. Microplastics have been found in water and sediments of the Antarctic but little is known of their ingestion by higher predators and mechanisms of their entry ...
Bessa, Filipa, Ratcliffe, Norman, Otero, Vanessa, Sobral, Paula, Marques, João C., Waluda, Claire M., Trathan, Phil N., Xavier, José C.   +7 more
openaire   +5 more sources

A 700 year record of Southern Hemisphere extratropical climate variability [PDF]

, 2004
Annually dated ice cores from West and East Antarctica provide proxies for past changes in atmospheric circulation over Antarctica and portions of the Southern Ocean, temperature in coastal West and East Antarctica, and the frequency of South Polar ...
Curran, Mark AJ, Goodwin, Ian D, Kreutz, K, Maasch, Kirk A, Mayewski, Paul A, Meyerson, E A, Morgan, Vin, Souney, Joseph M, Jr, Steig, Eric J, van Ommen, Tas D, White, James W.C.   +10 more
core   +1 more source

Potential climatic transitions with profound impact on Europe [PDF]

, 2011
We discuss potential transitions of six climatic subsystems with large-scale impact on Europe, sometimes denoted as tipping elements. These are the ice sheets on Greenland and West Antarctica, the Atlantic thermohaline circulation, Arctic sea ice, Alpine
A Born, A Ganachaud, A Ganopolski, A Hu, A Jones, A Laurian, A Levermann, A Levermann, A Levermann, A Levermann, A Schmittner, A Winguth, AA Scaife, Anders Levermann, Andrey Ganopolski, B Dickson, B Schaefli, B Zwierl, BJ Soden, BN Goswami, C Deser, C Haas, C Harris, C Schnadt, C Schoof, C Stick, C Vincent, CAPE-Last Interglaicial Project Members, CL Parkinson, D Farinotti, D Notz, D Pollard, D Stammer, DA Lashof, DA Rothrock, DB Kirk-Davidoff, DG Vaughan, Dirk Notz, DK Perovich, DM Holland, DM Lawrence, DT Shindell, DWJ Thompson, E Kriegler, E Meur Le, E Rignot, E Rignot, E Rignot, EJ Rignot, F Paul, F Paul, G Cogley, G Jouvet, G Kaser, G Manney, G Manney, G Manney, GA Meehl, GJ Oldenborgh van, H Goosse, H Hátún, HD Pritchard, HJ Schellnhuber, I Auer, I Eisenmann, I Joughin, I Joughin, I Velicogna, J Maslanik, J Noetzli, J Oerlemans, J Oerlemans, J Oerlemans, J Ridley, J Ridley, J Stroeve, J Weertman, J Yin, J Yin, J Zhang, JA Church, JC Comiso, JE Kay, JF McManus, JH Jungclaus, JL Bamber, JL Chen, JM Gregory, JM Gregory, Jonathan L. Bamber, JP Wilkinson, JR Miller, JT Overpeck, JX Mitrovica, K Eckhardt, K Zickfeld, KH Rosenlof, Kirstin Krüger, LC Sime, LH Smedsrud, M Beniston, M Dameris, M Hoelzle, M Hofmann, M Honda, M Huss, M Huss, M Huss, M Ogi, M Rex, M Rex, M Scheffer, M Stendel, M Vellinga, M Vellinga, M Wang, M Winton, M Winton, M Zemp, M Zemp, Matthias Huss, MF Meier, MM Holland, Neil R. P. Harris, NP Harris, NW Arnell, O Solomina, P Huybrechts, P Wadhams, P Wadhams, P Wadhams, Peter Wadhams, PM Forster, PU Clark, R Hock, R Lindsay, RE Kopp, RJ Braithwaite, RJ Stouffer, Ronald W. Lindsay, RP Scherer, S Amstrup, S Gruber, S Rahmstorf, S Rahmstorf, S Rahmstorf, S Rahmstorf, S Rahmstorf, S Solomon, S Solomon, S Tegtmeier, S Tietsche, SJ Evans, SJ Oltmans, SL Weber, SL Weber, SS Drijfhout, Susanne Weber, Sybren Drijfhout, T Hattermann, T Kuhlbrodt, T Naish, T Toniazzo, Timothy M. Lenton, TM Lenton, V Petoukhov, VM Kattsov, W Haeberli, W Haeberli, W Weijer, Winfried Haeberli, WJ Randel, WT Pfeffer, Y Wang, ZW Kundzewicz   +174 more
core   +1 more source

Solar Geoengineering in the Polar Regions: A Review

Earth's Future, 2023
Solar geoengineering refers to proposals, including stratospheric aerosol injection (SAI), to slow or reverse climate change by reflecting away incoming sunlight.
Alistair Duffey, P. Irvine, M. Tsamados, J. Stroeve   +3 more
semanticscholar   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source