Results 11 to 20 of about 1,312 (121)

Using Color to Control Conformation in a Chemical System Containing Multiple Tricyanofuran Photoacids. [PDF]

open access: yesAngew Chem Int Ed Engl
In a solution of two metastable photoacids with contrasting absorption maxima, the solution pH may be control by varying the wavelength of the visible light input. This pH change governs the interaction between the Zn2+ cation and two competing anionic chiral ligands, detected by a change in circular dichroism (CD) spectra.
Wootten MM   +3 more
europepmc   +3 more sources

Identification of EppR, a Second Repressor of Error-Prone DNA Polymerase Genes in Acinetobacter baumannii. [PDF]

open access: yesMol Microbiol
A novel TetR‐like regulator (EppR) has been identified to repress genes encoding DNA polymerase V in Acinetobacter baumannii through the direct binding of a conserved EppR motif in their promoters. EppR works with previously identified regulator UmuDAb to serve as co‐regulators of these genes. In response to DNA damage and/or environmental stress, both
Nguyen B   +6 more
europepmc   +2 more sources

Effect of Selected Luminescent Layers on CCT, CRI, and Response Times. [PDF]

open access: yesMaterials (Basel), 2019
Phosphors have been used as wavelength converters in illumination for many years. When it is excited with blue light, the frequently used yttrium aluminium garnet doped with cerium (YAG:Ce) phosphor converts a part of blue light to a wideband yellow ...
Jargus J   +4 more
europepmc   +3 more sources

A Victorian Age Proof of the Four Color Theorem [PDF]

open access: yes, 2010
In this paper we have investigated some old issues concerning four color map problem. We have given a general method for constructing counter-examples to Kempe's proof of the four color theorem and then show that all counterexamples can be rule out by re-
Cahit, I.
core   +1 more source

Acyclic edge coloring of graphs [PDF]

open access: yes, 2014
An {\em acyclic edge coloring} of a graph $G$ is a proper edge coloring such that the subgraph induced by any two color classes is a linear forest (an acyclic graph with maximum degree at most two). The {\em acyclic chromatic index} $\chiup_{a}'(G)$ of a
Wang, Tao, Zhang, Yaqiong
core   +1 more source

Joint scaling limit of site percolation on random triangulations in the metric and peanosphere sense

open access: yes, 2021
Recent works have shown that random triangulations decorated by critical ($p=1/2$) Bernoulli site percolation converge in the scaling limit to a $\sqrt{8/3}$-Liouville quantum gravity (LQG) surface (equivalently, a Brownian surface) decorated by SLE$_6 ...
Gwynne, Ewain, Holden, Nina, Sun, Xin
core   +1 more source

On the Influence of Infra-Red Sensor in the Accurate Estimation of Grinding Temperatures. [PDF]

open access: yesSensors (Basel), 2018
Workpiece rejection originated by thermal damage is of great concern in high added-value industries, such as automotive or aerospace. Surface temperature control is vital to avoid this kind of damage.
Urgoiti L   +4 more
europepmc   +4 more sources

Chromatic roots are dense in the whole complex plane [PDF]

open access: yes, 2000
I show that the zeros of the chromatic polynomials P_G(q) for the generalized theta graphs \Theta^{(s,p)} are, taken together, dense in the whole complex plane with the possible exception of the disc |q-1| < 1.
Sokal, Alan D.
core   +3 more sources

Dichromatic polynomials and Potts models summed over rooted maps

open access: yes, 2001
We consider the sum of dichromatic polynomials over non-separable rooted planar maps, an interesting special case of which is the enumeration of such maps. We present some known results and derive new ones.
Arakaki   +31 more
core   +1 more source

Correlation Functions of Dense Polymers and c=-2 Conformal Field Theory [PDF]

open access: yes, 1998
The model of dense lattice polymers is studied as an example of non-unitary Conformal Field Theory (CFT) with $c=-2$. ``Antisymmetric'' correlation functions of the model are proved to be given by the generalized Kirchhoff theorem.
Baxter R J   +14 more
core   +2 more sources

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