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Institution

University of Florence

EducationFlorence, Toscana, Italy
About: University of Florence is a education organization based out in Florence, Toscana, Italy. It is known for research contribution in the topics: Population & Carbonic anhydrase. The organization has 27292 authors who have published 79599 publications receiving 2341684 citations. The organization is also known as: Università degli studi di Firenze & Universita degli studi di Firenze.


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Journal ArticleDOI
TL;DR: Questions about instruments, methods and applications based on chlorophyll a fluorescence, and the answers draw on knowledge from different Chl a Fluorescence analysis domains, yielding in several cases new insights.
Abstract: Using chlorophyll (Chl) a fluorescence many aspects of the photosynthetic apparatus can be studied, both in vitro and, noninvasively, in vivo. Complementary techniques can help to interpret changes in the Chl a fluorescence kinetics. Kalaji et al. (Photosynth Res 122:121–158, 2014a) addressed several questions about instruments, methods and applications based on Chl a fluorescence. Here, additional Chl a fluorescence-related topics are discussed again in a question and answer format. Examples are the effect of connectivity on photochemical quenching, the correction of F V /F M values for PSI fluorescence, the energy partitioning concept, the interpretation of the complementary area, probing the donor side of PSII, the assignment of bands of 77 K fluorescence emission spectra to fluorescence emitters, the relationship between prompt and delayed fluorescence, potential problems when sampling tree canopies, the use of fluorescence parameters in QTL studies, the use of Chl a fluorescence in biosensor applications and the application of neural network approaches for the analysis of fluorescence measurements. The answers draw on knowledge from different Chl a fluorescence analysis domains, yielding in several cases new insights.

384 citations

Journal ArticleDOI
Patrick Abbot1, Jun Abe2, John Alcock3, Samuel Alizon, João Alpedrinha4, Malte Andersson5, Jean-Baptiste André6, Minus van Baalen6, Francois Balloux7, Sigal Balshine8, Nicholas H. Barton9, Leo W. Beukeboom10, Jay M. Biernaskie4, Trine Bilde11, Gerald Borgia12, Michael D. Breed13, Sam P. Brown4, Redouan Bshary, Angus Buckling4, Nancy Tyler Burley14, Max N. Burton-Chellew4, Michael A. Cant15, Michel Chapuisat16, Eric L. Charnov17, Tim H. Clutton-Brock18, Andrew Cockburn19, Blaine J. Cole20, Nick Colegrave21, Leda Cosmides22, Iain D. Couzin23, Jerry A. Coyne24, Scott Creel25, Bernard J. Crespi26, Robert L. Curry27, Sasha R. X. Dall15, Troy Day28, Janis L. Dickinson29, Lee Alan Dugatkin30, Claire El Mouden4, Stephen T. Emlen29, Jay D. Evans31, Régis Ferrière32, Jeremy Field33, Susanne Foitzik34, Kevin R. Foster4, William A. Foster18, Charles W. Fox35, Juergen Gadau3, Sylvain Gandon, Andy Gardner4, Michael G. Gardner36, Thomas Getty37, Michael A. D. Goodisman38, Alan Grafen4, Richard K. Grosberg39, Christina M. Grozinger40, Pierre-Henri Gouyon, Darryl T. Gwynne41, Paul H. Harvey4, Ben J. Hatchwell42, Jürgen Heinze43, Heikki Helanterä44, Ken R. Helms45, Kim Hill3, Natalie Jiricny4, Rufus A. Johnstone18, Alex Kacelnik4, E. Toby Kiers46, Hanna Kokko19, Jan Komdeur10, Judith Korb47, Daniel J. C. Kronauer48, Rolf Kümmerli49, Laurent Lehmann, Timothy A. Linksvayer50, Sébastien Lion51, Bruce E. Lyon52, James A. R. Marshall42, Richard McElreath39, Yannis Michalakis, Richard E. Michod53, Douglas W. Mock54, Thibaud Monnin6, Robert Montgomerie28, Allen J. Moore15, Ulrich G. Mueller55, Ronald Noë56, Samir Okasha57, Pekka Pamilo44, Geoff A. Parker58, Jes S. Pedersen50, Ido Pen10, David W. Pfennig59, David C. Queller60, Daniel J. Rankin61, Sarah E. Reece21, Hudson K. Reeve29, Max Reuter62, Gilbert Roberts63, Simon K. A. Robson64, Denis Roze6, François Rousset65, Olav Rueppell66, Joel L. Sachs67, Lorenzo A. Santorelli4, Paul Schmid-Hempel68, Michael P. Schwarz36, Thomas C. Scott-Phillips21, Janet Shellmann-Sherman29, Paul W. Sherman29, David M. Shuker69, jeff smith60, Joseph C. Spagna70, Beverly I. Strassmann71, Andrew V. Suarez72, Liselotte Sundström44, Michael Taborsky73, Peter D. Taylor28, Graham J. Thompson74, John Tooby22, Neil D. Tsutsui75, Kazuki Tsuji76, Stefano Turillazzi77, Francisco Úbeda78, Edward L. Vargo79, Bernard Voelkl80, Tom Wenseleers81, Stuart A. West4, Mary Jane West-Eberhard82, David F. Westneat35, Diane C. Wiernasz20, Geoff Wild74, Richard Wrangham1, Andrew J. Young15, David W. Zeh48, David W. Zeh83, Jeanne A. Zeh83, Andrew G. Zink84 
Vanderbilt University1, Shizuoka University2, Arizona State University3, University of Oxford4, University of Gothenburg5, Pierre-and-Marie-Curie University6, Imperial College London7, McMaster University8, Institute of Science and Technology Austria9, University of Groningen10, Aarhus University11, University of Maryland, College Park12, University of Colorado Boulder13, University of California, Irvine14, University of Exeter15, University of Lausanne16, University of New Mexico17, University of Cambridge18, Australian National University19, University of Houston20, University of Edinburgh21, University of California, Santa Barbara22, Princeton University23, University of Chicago24, Montana State University25, Simon Fraser University26, Villanova University27, Queen's University28, Cornell University29, University of Louisville30, United States Department of Agriculture31, École Normale Supérieure32, University of Sussex33, Ludwig Maximilian University of Munich34, University of Kentucky35, Flinders University36, Michigan State University37, Georgia Institute of Technology38, University of California, Davis39, Pennsylvania State University40, University of Toronto41, University of Sheffield42, University of Regensburg43, University of Helsinki44, University of Vermont45, VU University Amsterdam46, University of Osnabrück47, Harvard University48, Swiss Federal Institute of Aquatic Science and Technology49, University of Copenhagen50, Royal Holloway, University of London51, University of California, Santa Cruz52, University of Arizona53, University of Oklahoma54, University of Texas at Austin55, University of Strasbourg56, University of Bristol57, University of Liverpool58, University of North Carolina at Chapel Hill59, Rice University60, University of Zurich61, University College London62, Newcastle University63, James Cook University64, University of Montpellier65, University of North Carolina at Greensboro66, University of California, Riverside67, ETH Zurich68, University of St Andrews69, William Paterson University70, University of Michigan71, University of Illinois at Urbana–Champaign72, University of Bern73, University of Western Ontario74, University of California, Berkeley75, University of the Ryukyus76, University of Florence77, University of Tennessee78, North Carolina State University79, Humboldt University of Berlin80, Katholieke Universiteit Leuven81, Smithsonian Institution82, University of Nevada, Reno83, San Francisco State University84
24 Mar 2011-Nature
TL;DR: It is argued that inclusive fitness theory has been of little value in explained the natural world, and that it has led to negligible progress in explaining the evolution of eusociality, but these arguments are based upon a misunderstanding of evolutionary theory and a misrepresentation of the empirical literature.
Abstract: Arising from M. A. Nowak, C. E. Tarnita & E. O. Wilson 466, 1057-1062 (2010); Nowak et al. reply. Nowak et al. argue that inclusive fitness theory has been of little value in explaining the natural world, and that it has led to negligible progress in explaining the evolution of eusociality. However, we believe that their arguments are based upon a misunderstanding of evolutionary theory and a misrepresentation of the empirical literature. We will focus our comments on three general issues.

383 citations

Journal ArticleDOI
TL;DR: Ebsco as mentioned in this paper focused on a study which dealt with production function, heterogeneous capital and the theory of distribution and relations between the wage, the rate of interest and the product per worker in the two-commodity economy.
Abstract: Focuses on a study which dealt with production function, heterogeneous capital and the theory of distribution. Relations between the wage, the rate of interest and the product per worker in the two-commodity economy; Details on the surrogate production function; Premises of the traditional theory of distribution. (Из Ebsco)

383 citations

Journal ArticleDOI
TL;DR: It is shown how Hofmeister effects depend on an interplay between specific surface chemistry, surface charge density, pH, buffer, and counterion with polarisabilities and ion size, and how the most recent theories on surface hydration combined with hydrated nonelectrostatic potentials may predict experimental zeta potentials and hydration forces.
Abstract: The classical Derjaguin–Landau–Verwey–Overbeek (DLVO) theory of colloids, and corresponding theories of electrolytes, are unable to explain ion specific forces between colloidal particles quantitatively. The same is true generally, for surfactant aggregates, lipids, proteins, for zeta and membrane potentials and in adsorption phenomena. Even with fitting parameters the theory is not predictive. The classical theories of interactions begin with continuum solvent electrostatic (double layer) forces. Extensions to include surface hydration are taken care of with concepts like inner and outer Helmholtz planes, and “dressed” ion sizes. The opposing quantum mechanical attractive forces (variously termed van der Waals, Hamaker, Lifshitz, dispersion, nonelectrostatic forces) are treated separately from electrostatic forces. The ansatz that separates electrostatic and quantum forces can be shown to be thermodynamically inconsistent. Hofmeister or specific ion effects usually show up above ≈10−2 molar salt. Parameters to accommodate these in terms of hydration and ion size had to be invoked, specific to each case. Ionic dispersion forces, between ions and solvent, for ion–ion and ion–surface interactions are not explicit in classical theories that use “effective” potentials. It can be shown that the missing ionic quantum fluctuation forces have a large role to play in specific ion effects, and in hydration. In a consistent predictive theory they have to be included at the same level as the nonlinear electrostatic forces that form the skeletal framework of standard theory. This poses a challenge. The challenges go further than academic theory and have implications for the interpretation and meaning of concepts like pH, buffers and membrane potentials, and for their experimental interpretation. In this article we overview recent quantitative developments in our evolving understanding of the theoretical origins of specific ion, or Hofmeister effects. These are demonstrated through an analysis that incorporates nonelectrostatic ion–surface and ion–ion dispersion interactions. This is based on ab initio ionic polarisabilities, and finite ion sizes quantified through recent ab initio work. We underline the central role of ionic polarisabilities and of ion size in the nonelectrostatic interactions that involve ions, solvent molecules and interfaces. Examples of mechanisms through which they operate are discussed in detail. An ab initio hydration model that accounts for polarisabilities of the tightly held hydration shell of “cosmotropic” ions is introduced. It is shown how Hofmeister effects depend on an interplay between specific surface chemistry, surface charge density, pH, buffer, and counterion with polarisabilities and ion size. We also discuss how the most recent theories on surface hydration combined with hydrated nonelectrostatic potentials may predict experimental zeta potentials and hydration forces.

383 citations

Journal ArticleDOI
TL;DR: In this article, the stability and stabilizability properties of systems with discontinuous righthand side (with solutions intended in Filippov's sense) by means of locally Lipschitz continuous and regular Lyapunov functions were studied.
Abstract: We study stability and stabilizability properties of systems with discontinuous righthand side (with solutions intended in Filippov's sense) by means of locally Lipschitz continuous and regular Lyapunov functions. The stability result is obtained in the more general context of differential inclusions. Concerning stabilizability, we focus on systems affine with respect to the input: we give some sufficient conditions for a system to be stabilized by means of a feedback law of the Jurdjevic-Quinn type.

383 citations


Authors

Showing all 27699 results

NameH-indexPapersCitations
Charles A. Dinarello1901058139668
D. M. Strom1763167194314
Gregory Y.H. Lip1693159171742
Christopher M. Dobson1501008105475
Dirk Inzé14964774468
Thomas Hebbeker1481984114004
Marco Zanetti1451439104610
Richard B. Devereux144962116403
Gunther Roland1411471100681
Markus Klute1391447104196
Tariq Aziz138164696586
Guido Tonelli138145897248
Giorgio Trinchieri13843378028
Christof Roland137130896632
Christoph Paus1371585100801
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023244
2022631
20215,298
20205,251
20194,652
20184,147