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Twisted Whitehead Products [PDF]

Proceedings of the American Mathematical Society, 1979
By combining the Hopf construction and the Whitehead product map construction we introduce twisted Whitehead products and then extend several well-known properties of Whitehead products to the twisted situation.
openaire   +1 more source

Firms' Green Responses to Environmental Regulations: A Three‐Dimensional Concurrent Engineering Perspective

Business Strategy and the Environment, EarlyView.
ABSTRACT This study investigates companies' responses to energy efficiency policies, focusing on mandatory and voluntary regulations that create a complex landscape for businesses to navigate. Using a sample of 1473 firms across 29 European countries (2002–2018), we explore the impact of legislation on green redesign—operationalized through ...
Thomas Alexopoulos, Dimitra Kalaitzi, Giorgos Papagiannakis, Konstantina Spanaki   +3 more
wiley   +1 more source

Genome-wide screening reveals producer-cell modifications that improve virus-like particle production and delivery potency

Nature Communications
Engineered virus-like particles (eVLPs) are promising vehicles for transient delivery of gene editing agents. While extensive particle engineering has yielded efficient eVLPs, it remains underexplored whether engineering the cells used to produce eVLPs ...
Diana Ly, Hyewon Jang, Adhiraj Goel, Arnav Singh, Aditya Raguram   +4 more
doaj   +1 more source

Beyond Structural Interventions: The Human Architecture Shaping ESG Integration in Corporate Systems

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite the promotion of ESG in corporate discourse, substantive integration of ESG principles into business practices remains challenging. This study applies and extends Meadows' leverage framework to examine ESG integration in UAE‐listed firms.
M. Schulte, Dimitris Christopoulos
wiley   +1 more source

LINE1-Mediated Reverse Transcription and Genomic Integration of SARS-CoV-2 mRNA Detected in Virus-Infected but Not in Viral mRNA-Transfected Cells

Viruses, 2023
SARS-CoV-2 sequences can be reverse-transcribed and integrated into the genomes of virus-infected cells by a LINE1-mediated retrotransposition mechanism.
Liguo Zhang, Punam Bisht, Anthony Flamier, M. Inmaculada Barrasa, Max Friesen, Alexsia Richards, Stephen H. Hughes, Rudolf Jaenisch   +7 more
doaj   +1 more source

Whitehead and Pythagoras [PDF]

, 2006
While the appeal of scientific materialism has been weakened by developments in theoretical physics, chemistry and biology, Pythagoreanism still attracts the allegiance of leading scientists and mathematicians.
Gare, Arran
core  

Transverse Whitehead triangulations [PDF]

Pacific Journal of Mathematics, 1979
Suppose M and N are PL manifolds and f: M->N is a proper PL map. Triangulate M and N so that / is simplical and let X be the dual complex in N. Then for each open simplex σ in X, f'Ko) is a PL submanifold of M, so the stratification of N by the open simpliceβ of X pulls back to a stratification of M. In other words, any such PL map can be regarded as a
openaire   +3 more sources

A [3]Rotaxane Containing {Ti7Ga} Rings Linking CuII: Synthesis, Structure, and Spectroscopic Studies

Chemistry – A European Journal, EarlyView.
Extended hybrid inorganic‐organic [2]‐ and [3]‐rotaxanes are reported based on heterometallic rings with threads that link CuII complexes; the crystal structures are reported, and the solution behavior is investigated by double electron electron resonance spectroscopy methods.
Selena J. Lockyer, Lubomir Loci, George F. S. Whitehead, Inigo J. Vitorica‐Yrezabal, Grigore A. Timco, Alice M. Bowen, Eric J. L. McInnes, Richard E. P. Winpenny   +7 more
wiley   +1 more source

A Novel Heterometallic Ring {Cr5Ni3} and New {Cr6Co2} and {Cr6Zn2} Rings

Chemistry – A European Journal, EarlyView.
A novel heterometallic ring containing five Cr(III) and three Ni(II) centers is reported. It forms an octagon and has a single isomer, as revealed by a combination of magnetic and EPR studies and collision‐induced dissociation mass spectrometry. ABSTRACT A new heterometallic ring, [Me4N][(Me4N)2Cr5Ni3F8(BTFB)16] (BTFB = 3,5‐bis(trifluoromethyl)benzoate)
Abdulelah Alsuhaymi, Niklas Geue, Adam Brookfield, Grigore A. Timco, Selena J. Lockyer, Gareth D. Smith, George F. S. Whitehead, Perdita E. Barran, David Collison, Richard E. P. Winpenny   +9 more
wiley   +1 more source

Constructing and Classifying Fully Irreducible Outer Automorphisms of Free Groups

, 2012
The main theorem of this document emulates, in the context of Out(F_r) theory, a mapping class group theorem (by H. Masur and J. Smillie) that determines precisely which index lists arise from pseudo-Anosov mapping classes.
Pfaff, Catherine
core   +1 more source