Results 241 to 250 of about 1,025,104 (289)

Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron

Angewandte Chemie, EarlyView.
Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej, Arturo Rodríguez‐Banqueri, Danuta Mizgalska, Borys Szmigielski, Zuzanna Nowakowska, Małgorzata Benedyk‐Machaczka, Monika Bzowska, Katarzyna Mikruta, Juan Sebastián Ramírez‐Larrota, Chinanu Agunanne, Olivier Julien, Anthony J. O'Donoghue, Carsten Scavenius, Mario López‐Martín, Enrique Marcos, Łukasz Koziej, Sebastian Glatt, Pablo Guerra, Ulrich Eckhard, Jan Potempa, F. Xavier Gomis‐Rüth   +20 more
wiley   +1 more source

Escalating Fire-Driven Forest Loss in Protected Tropical Forests. [PDF]

Glob Chang Biol
Bousfield CG, Morton O.
europepmc   +1 more source

Reforestation following megafires in boreal forests: silvicultural challenges and available tools. [PDF]

New For (Dordr)
Canuel CM, Guyot F, Hébert F, Jacques-Beaudoin É, Dumais D, Thiffault N, Barrette M, Boucher Y.   +7 more
europepmc   +1 more source

Thermal Performance of Recycled High-Ductility Cementitious Composites Under Various Elevated Temperatures and Cooling Regimes. [PDF]

Materials (Basel)
Huang J, Wang X, Shi Q, Yang J, Hua M.
europepmc   +1 more source

Origins Under the Blowtorch: Frequent Fire Shifts the Balance Between Sunda-Origin and Sahul-Origin Plant Species in a Tropical Savanna. [PDF]

Ecol Evol
Bryceson SR, Morgan JW.
europepmc   +1 more source

Regeneration Strategies in Seed Plants: A Continuum Shaping Survival. [PDF]

Ecol Evol
Maleki K, Soltani E.
europepmc   +1 more source

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Manage fire regimes, not fires

Nature Geoscience, 2021
Globally, land- and fire-management policies have counterproductively caused cascading ecosystem changes that exacerbate, rather than mitigate, wildfires. Given rapidly changing climate and land-use conditions that amplify wildfire risk, a policy shift to adaptive management of fire regimes is urgently needed.
Mark A. Cochrane, David M. J. S. Bowman
openaire   +1 more source

Reexamining Fire Suppression Impacts on Brushland Fire Regimes

Science, 1999
California shrubland wildfires are increasingly destructive, and it is widely held that the problem has been intensified by fire suppression, leading to larger, more intense wildfires. However, analysis of the California Statewide Fire History Database shows that, since 1910, fire frequency and area burned have not declined, and fire size has not ...
, Keeley, , Fotheringham, , Morais
openaire   +2 more sources

Fire Regimes, Fire Ecology, and Fire Management in Mexico

AMBIO: A Journal of the Human Environment, 2008
I propose several broad fire regimes and provide an analysis of fire ecology for the principal vegetation types in Mexico. Forty percent of Mexican ecosystems are fire-dependent (pine forests, several oak forests, grasslands, several shrublands, savannas, palm lands, wet prairies, "popal" and "tular" swamps), 50% are fire-sensitive (tropical rain ...
openaire   +2 more sources

HUMAN INFLUENCE ON CALIFORNIA FIRE REGIMES

Ecological Applications, 2007
Periodic wildfire maintains the integrity and species composition of many ecosystems, including the mediterranean-climate shrublands of California. However, human activities alter natural fire regimes, which can lead to cascading ecological effects. Increased human ignitions at the wildland-urban interface (WUI) have recently gained attention, but fire
Alexandra D, Syphard, Volker C, Radeloff, Jon E, Keeley, Todd J, Hawbaker, Murray K, Clayton, Susan I, Stewart, Roger B, Hammer   +6 more
openaire   +2 more sources