Zobrazeno 1 - 10
of 179
pro vyhledávání: '"William E. Stein"'
Publikováno v:
Review of Palaeobotany and Palynology. 295:104520
For over 150 years, the mid-Devonian Eospermatopteris stump cast localities comprising the “oldest known petrified forest” of Goldring (1927) at Gilboa, New York have rarely been accessible for study. In 2010–2013, we had the opportunity to app
Autor:
Jonathan R. Leake, Ed Landing, David J. Beerling, Christopher Mark Berry, Linda VanAller Hernick, Charles Ver Straeten, Jennifer L. Morris, Frank Mannolini, William E. Stein, John E. A. Marshall, Charles H. Wellman
Publikováno v:
Current Biology. 30:421-431.e2
The origin of trees and forests in the Mid Devonian (393–383 Ma) was a turning point in Earth history, marking permanent changes to terrestrial ecology, geochemical cycles, atmospheric CO 2 levels, and climate. However, how all these factors interr
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Dennis O. Terry, William E. Stein
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
William E. Stein
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Jennifer L. Morris, Jonathan R. Leake, J. Andrew Milton, John E. A. Marshall, David J. Beerling, Joe Quirk, Stephen Hillier, Christopher Mark Berry, William E. Stein, Charles H. Wellman, Frank Mannolini
Publikováno v:
Palaeontology. 58:787-801
We present the rationale for a cross-disciplinary investigation addressing the ‘Devonian plant hypothesis’ which proposes that the evolutionary appearance of trees with deep, complex rooting systems represents one of the major biotic feedbacks on
Cladoxylopsida included the earliest large trees that formed critical components of globally transformative pioneering forest ecosystems in the Mid- and early Late Devonian (ca. 393–372 Ma). Well-known cladoxylopsid fossils include the up to ∼1-m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25dac40f114daf87bd8b8ccb25345e78
Publikováno v:
Theory and Decision. 76:419-450
We consider a class of dynamic tournaments in which two contestants are faced with a choice between two courses of action. The first is a riskless option (“hold”) of maintaining the resources the contestant already has accumulated in her turn and
Publikováno v:
Transportation Research Part B: Methodological. 44:1166-1185
We study batch queueing systems with continuous time, finite commuter populations, single server, and endogenously determined arrival times. Symmetric equilibrium solutions in mixed strategies are constructed and subsequently tested in two experiment
Autor:
William E. Stein, Matthew F. Keblis
Publikováno v:
Mathematical and Computer Modelling. 49:1143-1147
A new method is developed to simulate the triangular distribution. The result is of interest from a practical as well as a theoretical viewpoint. The new method is surprisingly simple and is more efficient than the standard method of simulation by in