Results 71 to 80 of about 19,542 (306)
A synthetic approach to the phorboxazoles – Synthesis of the C20–C32 central core
Tetrahedron Letters, 2017 Abstract An enantiospecific synthesis of the C20–C32 central core of the phorboxazole scaffold, including the non-macrocyclic oxazole is detailed in 17 steps (longest linear sequence) from methacrolein in 7.8% overall yield. All of the stereocenters are communicated from a single Evans aldol reaction, and the final compound is suitably functionalized
James W. Leahy, Stephen J. Boyer
openalex +4 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT The consideration of Industry 4.0, sustainability and circular economy (I4.0‐S‐CE) drivers plays a pivotal role in the development of agri‐food supply chains (AFSCs) that aim to achieve sustainable development goals (SDGs). Establishing SDGs‐oriented AFSCs is critical for meeting the agricultural needs of developing countries, prioritizing ...
Selçuk Perçin +2 more
wiley +1 more source
Systematic Entomology, Volume 48, Issue 1, Page 69-96, January 2023., 2023 A reevaluation of †Tshecardocoleidae revealed that crucial character transformations took place in the Permian. Phylogenetic analyses show that Coleoptera excluding †Tshecardocoleidae are strongly supported as a clade (Mesocoleoptera). Taxon exclusion experiments demonstrate that †Tshecardocoleidae are crucial for understanding the early evolution of ...
Brendon Elias Boudinot +4 more
wiley +1 more source
Economics and Business Review, 2021 In this article the dynamic connectedness between the five agricultural commodities is examined by implementing the Diebold and Yılmaz (VAR based) and Time--Varying Parameter Vector Autoregressions (TVP-VAR) measures for understanding the time-varying ...
Mishra Arunendra, Kumar R Prasanth
doaj +1 more source
Renormalization group equations for effective field theories [PDF]
Eur.Phys.J. C32 (2003) 427-442, 2003 We derive the renormalization group equations for a generic nonrenormalizable theory. We show that the equations allow one to derive the structure of the leading divergences at any loop order in terms of one-loop diagrams only. In chiral perturbation theory, e.g., this means that one can obtain the series of leading chiral logs by calculating only one ...
arxiv +1 more source
Predictions for J/Psi Suppression by Parton Percolation [PDF]
Eur.Phys.J. C32 (2004) 547-553, 2003 Parton percolation provides geometric deconfinement in the pre-equilibrium stage of nuclear collisions. The resulting parton condensate can lead to charmonium suppression. We formulate a local percolation condition viable for non-uniform collision environments and show that it correctly reproduces the suppression observed for S-U and Pb-Pb collisions ...
arxiv +1 more source
Molecular Dynamics of High‐Pressure Liquid Water: Going from Ambient to Near‐Critical Temperatures
Chemistry – A European Journal, EarlyView.The properties of liquid water were investigated along the isobar of 25 MPa from ambient to near‐critical temperatures, using molecular dynamics simulations. Noticeable changes in the shape of the radial distribution functions, in several structural order parameters and entropic quantities, as well as in the reorientational and HB dynamics were ...
Ioannis Skarmoutsos, Elvira Guardia
wiley +1 more source
Determinants of private investments in Turkey: Examining the role of democracy
Review of Economic Perspectives, 2020 This study investigates the determinants of private sector investments in Turkey with a focus on democracy. Using the Autoregressive Distributed Lag (ARDL) bounds testing approach and two different democracy indices along with the other determinants of ...
Akçay Selçuk, Karasoy Alper
doaj +1 more source
q-Integration on Quantum Spaces [PDF]
Eur.Phys.J. C32 (2004) 281-297, 2002 In this article we present formulae for q-integration on quantum spaces which could be of particular importance in physics, i.e. q-deformed Minkowski space and q-deformed Euclidean space in 3 or 4 dimensions. Furthermore, our formulae can be regarded as a generalization of Jackson's q-integral to 3 and 4 dimensions and provide a new possibility for an ...
arxiv +1 more source
Allosteric Differentiation of Al(I) Reactivity
Chemistry – A European Journal, Accepted Article.The dimeric potassium alumanyl, [{SiNDipp}AlK]2 ({SiNDipp} = {CH2SiMe2N(Dipp)}2; Dipp = 2,6‐i‐Pr2C6H3), reacts with two equivalents of PhCºCR (R = Ph or SiMe3) and the exclusive formation of the aluminacyclopropene derivatives, [{SiNDipp}Al{h2‐C2(R1)(R2)}].
Michael Stephen Hill +6 more
wiley +1 more source