A Critical Look at Reciprocity in Ecology and Evolution: Introduction to the Symposium. Author(s): David N. Reznick Source: The American Naturalist, Vol. 181, No. S1, A Critical Look at Reciprocity in Ecology and Evolution (May 2013), pp. S1-S8 Published by: The University of Chicago Press for The American Society of Naturalists Stable URL: http://www.jstor.org/stable/10.1086/670030 . Accessed:...

In this work we prove that the set of points at infinity S8 :“ ClRPm pSqXH8 of a semialgebraic set S Ă R that is the image of a polynomial map f : R Ñ R is connected. This result is no longer true in general if f is a regular map. However, it still works for a large family of regular maps that we call quasi-polynomial maps.

1 Botany Department, University of Cape Town, Private Bag, Rondebosch, Cape Town 7700, South Africa 2 Department of Biology and Herbarium, University of Michigan, Ann Arbor, Michigan 48109, USA 3 National Herbarium of the Netherlands (Leiden branch), PO Box 9514, 2300 RA Leiden, The Netherlands 4 Current address: Research Group Phycology, Laboratory of Botany, Ghent University, Krijgslaan 281 /...

S1. Experimental Details on in-situ Bending Test including the Error Analysis and E-beam Conditions S2. More Experimental Results on Anelastic Relaxation S3. Discussion of Thermoelastic Relaxation S4. Theoretical Model of Anelasticity in ZnO NWs S5. Relation between the Present Theoretical Model and Gorsky Theory S6. EELS Experiments and Analysis S7. More Fitting Results S8. Supplementary Movie...

Catalytic oxidation of N,N'-dimethylthiourea and thiourea by dioxygen in water using a new cobalt(II) complex of octasulfophenyltetrapyrazinoporphyrazine was performed under mild conditions. The reaction is shown to include the formation of an intermediate anionic five-coordinate complex followed by an unusual two-electron oxidation to produce the corresponding urea and elemental sulfur (S8). K...

These results were discovered in an attempt to embed real projective spaces. The well-known Hopf fiberings of Pu and Pi give the following representations of these spaces: Pi is a fiber space over S4 with P% as fiber, and Pu is a fiber space over S8 with P7 as fiber. Since any embedding of Pz in R6 has a trivial normal bundle [ó], Theorem 1.2 applies for Pi. Theorem 1.1 applies for Pu and, henc...

Table of Contents General methods S1 Reagents and materials S2 General protocol for the preparation of starting chiral ynamides S3 General procedures for the allylation of stereodefined trisubstituted copper enolate S5 Optimization reactions S8 Products of the enantioselective allylic alkylation reaction S9 Cleavage of oxazolidinone moiety 4 S19 References S21 X-Ray crystallographic analysis da...