Results 31 to 40 of about 147,685 (356)

Transformation of struvite from wastewater to a hydrogen fuel storage compound ammonia borane

Frontiers in Chemistry, 2023
Ammonia borane (NH3BH3) is a carrier of hydrogen gas that is known as a carbon-free renewable energy source. A high hydrogen content of ammonia borane and its stability in air at ambient temperatures make it a valuable molecule for its potential use as a
Nin Dingra, Michael Witty, Marie Celis, Narendra Boppana, Theppawut Ayudhya   +4 more
doaj   +1 more source

Functional diversity of marine ecosystems after the Late Permian mass extinction event [PDF]

, 2014
Article can be accessed from http://www.nature.com/ngeo/journal/v7/n3/full/ngeo2079.htmlThe Late Permian mass extinction event was the most severe such crisis of the past 500 million years and occurred during an episode of global warming.
A Baud, A Brayard, AE Webb, AH Knoll, AI Miller, AI Miller, AJ McGowan, AM Bush, AM Bush, AM Bush, DH Erwin, DM Raup, E Flügel, GJ Vermeij, GR McGhee, GT Lloyd, J-P Zonneveld, JJ Sepkoski, JL Payne, JL Payne, JW Valentine, M Hautmann, ME Clapham, ME Clapham, MJ Benton, MK Reichow, ML Fraiser, ND Jacobsen, PA Allison, PB Wignall, PB Wignall, PM Novack-Gottshall, PW Signor, RH Green, Richard J. Twitchett, RJ Twitchett, RJ Twitchett, RJ Twitchett, RK Bambach, S Villéger, S-Z Shen, SB Pruss, SM Stanley, T Kearsey, TK Baumiller, TW Beatty, WI Ausich, William J. Foster, Y Sun, Z-Q Chen   +49 more
core   +1 more source

Road and bridge construction across gypsum karst in England [PDF]

, 2002
Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence ...
Anthony H Cooper, Jonathan M Saunders, Arnould, Bacciarelli, Chandler, Cooper, Cooper, Cooper, Elliot, Forster, Kempton, Poupelloz, Reeves, Reuter, Ryder, Seedhouse, Sherlock, Smith, Sorochan, Thomson, Wynne   +20 more
core   +3 more sources

Climate simulation of the latest Permian: Implications for mass extinction [PDF]

, 2005
This report presents the results of climate modeling research which indicates that elevated levels of carbon dioxide in the atmosphere at the end of the Permian period led to climatic conditions inhospitable to both marine and terrestrial life.
Benton, Berner, Berner, Campbell, Christine A. Shields, Chumakov, Grice, Holser, Hotinski, Isozaki, Jeffrey T. Kiehl, Kidder, Kutzback, Rees, Renne, Retallack, Retallack, Ryskin, Taylor, Wang, Ward, Wignall, Zhang   +22 more
core   +1 more source

Polish Palaeobotany: 750 Million Years of Plant History as Revealed in a Century of Studies. Palaeozoic Macrofossils

Acta Societatis Botanicorum Poloniae, 2022
During the Palaeozoic Era, plants conquered the land and covered greater and greater areas from coastal lowlands to highlands. Palaeobotanical data based on macroremains from Polish Palaeozoic strata complete and enrich the picture of these processes ...
Grzegorz Pacyna, Maria Barbacka
doaj   +1 more source

The fossil record of early tetrapods: worker effort and the end-Permian mass extinction [PDF]

, 2010
It is important to understand the quality of the fossil record of early tetrapods (Tetrapoda, minus Lissamphibia and Amniota) because of their key role in the transition of vertebrates from water to land, their dominance of terrestrial faunas for over ...
Bebber D.F., Benton M.J., Benton M.J., Benton M.J., Emma L. Bernard, Fara E., Fara E., Flessa K.W., Jaeger G.F., James E. Tarver, Marcello Ruta, Maxwell W.D., Michael J. Benton, Peters S.E., Raup D.M., Schoch R.R., Sepkoski J.J., Valentine J.W., Wickström L.M.   +18 more
core   +2 more sources

Decoupling of morphological disparity and taxic diversity during the adaptive radiation of anomodont therapsids [PDF]

, 2013
Adaptive radiations are central to macroevolutionary theory. Whether triggered by acquisition of new traits or ecological opportunities arising from mass extinctions, it is debated whether adaptive radiations are marked by initial expansion of taxic ...
Anderson MJ, Benton MJ, Cox CB, Crompton AW, Fröbisch J, McKinney ML, Smith RMH, Upchurch P   +7 more
core   +1 more source

The base of the Lystrosaurus Assemblage Zone, Karoo Basin, predates the end-Permian marine extinction

Nature Communications, 2020
The current model for the end-Permian terrestrial ecosystem crisis holds that systematic loss exhibited by an abrupt turnover from the Daptocephalus to the Lystrosaurus Assemblage Zone (AZ; Karoo Basin, South Africa) is time equivalent with the marine ...
R. Gastaldo, S. Kamo, J. Neveling, J. Geissman, C. Looy, A. Martini   +5 more
semanticscholar   +1 more source

Pennsylvanian-Early Triassic stratigraphy in the Alborz Mountains (Iran) [PDF]

, 2009
New fieldwork was carried out in the central and eastern Alborz, addressing the sedimentary succession from the Pennsylvanian to the Early Triassic.
Al-Belushi, Alda Nicora, Altiner, Angiolini, Assereto, Baghbani, Baghbani, Balme, Bensh, Besse, Boncheva, Broglio Loriga, Brönnimann, Brönnimann, Chateauneuf, Chernyshev, Dario Sciunnach, Davydov, Elliott, Fantini Sestini, Fantini Sestini, Fantini Sestini, Fantini Sestini, Fantini Sestini, Feinberg, Flügel, Flügel, Flügel, Foster, Fraiser, Gaetani, Gansser, Garzanti, Ghavidel-Syooki, Glaus, Grant, Gregory D. Price, Hammer, Haq, Helby, Heravi, Hirsch, Holzer, Horacek, Insalaco, Isbell, Jafar Sabouri, Jenny, Jenny, Jenny, Jin, Jin, Kalashnikov, Katsumi Ueno, Ketat, Khaler, Kireeva, Kobayashi, Korte, Lasemi, Leven, Leven, Leven, Leven, Leven, Lucia Angiolini, Lys, Maurizio Gaetani, Meissami, Meissami, Michael H. Stephenson, Nazemi, Posenato, Roberto Rettori, Ruban, Rui, Ruttner, Savary, Schellwien, Sciunnach, Seyed-Emami, Shapiro, Sharland, Shi, Stampfli, Stephenson, Stephenson, Ueno, Van Wagoner, Wardlaw, Zaninetti, Zaninetti, Zolotova   +92 more
core   +2 more sources

Permian Reptiles [PDF]

Science, 1911
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openaire   +2 more sources