M
Michael R. Hoffmann
Researcher at California Institute of Technology
Publications - 522
Citations - 70877
Michael R. Hoffmann is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Aqueous solution & IUCN Red List. The author has an hindex of 109, co-authored 500 publications receiving 63474 citations. Previous affiliations of Michael R. Hoffmann include Clarkson University & International Union for Conservation of Nature and Natural Resources.
Papers
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Posted ContentDOI
How many bird and mammal extinctions has recent conservation action prevented
Friederike C. Bolam,Louise Mair,Marco Angelico,Thomas M. Brooks,Thomas M. Brooks,Thomas M. Brooks,Mark A. Burgman,Claudia Hermes,Michael R. Hoffmann,Rob W. Martin,Philip J. K. McGowan,Ana S. L. Rodrigues,Carlo Rondinini,Hannah Wheatley,Yuliana Bedolla-Guzmán,Javier Calzada,Matthew F. Child,Peter A. Cranswick,Chris R. Dickman,Birgit Fessl,Diana O. Fisher,Stephen T. Garnett,Jim J. Groombridge,Christopher N. Johnson,Rosalind J. Kennerley,Sarah R. B. King,John F. Lamoreux,Alexander C. Lees,Alexander C. Lees,Luc Lens,Simon P. Mahood,David P. Mallon,David P. Mallon,Erik Meijaard,Federico Méndez-Sánchez,Alexandre Reis Percequillo,Tracey J. Regan,Tracey J. Regan,Luis Miguel Renjifo,Malin C. Rivers,Nicolette S. Roach,Lizanne Roxburgh,R. J. Safford,Paul Salaman,Tom Squires,Ella Vázquez-Domínguez,Piero Visconti,Piero Visconti,James R.S. Westrip,John C. Z. Woinarski,Richard P. Young,Stuart H. M. Butchart,Stuart H. M. Butchart +52 more
TL;DR: It is found that conservation prevented 21–32 bird and 7–16 mammal extinctions since 1993, and 9–18 bird and 2–7 mammal extinction since 2010, and future biodiversity action needs to be scaled up to avert additional extinctions.
Patent
Microbial reduction of iron ore
TL;DR: In this paper, a process for reducing iron ore by treatment with microorganisms is described, which comprises forming an aqueous mixture of iron ore, microorganisms operable for reducing the ferric iron of the iron ore to ferrous iron, and a substrate operable as an energy source for the microbial reduction.
Journal ArticleDOI
Oxidation of Aqueous SO2 by Peroxymonosulfate
Journal ArticleDOI
On the kinetics of formaldehyde-S(IV) adduct formation in slightly acidic solution
TL;DR: In this paper, it was shown that the kinetics of dehydration of methylene glycol (hydrated formaldehyde) must be considered in determining the rate of hydroxymethanesulfonic acid formation in weakly acidic or neutral solution.
Book ChapterDOI
Possible Chemical Transformations in Snow and Ice Induced by Solar (UV PHOTONS) and Cosmic Irradiation (MUONS)
TL;DR: Bales and Wolff as discussed by the authors found that the ice age environmental conditions appeared to correspond to about 6 °C cooler temperatures and atmospheric CO2 and CH4 levels lower by a factor of nearly 2 and 4, respectively.