Results 61 to 70 of about 9,642,220 (333)

New Insight into the Pathogenesis of Erythema Nodosum Leprosum: The Role of Activated Memory T-Cells

open access: yesFrontiers in Immunology, 2017
Memory T-cells, particularly, effector memory T cells are implicated in the pathogenesis of inflammatory diseases and may contribute to tissue injury and disease progression.
Edessa Negera   +8 more
doaj   +1 more source

A theory-driven synthesis of symmetric and unsymmetric 1,2-bis(diphenylphosphino)ethane analogues via radical difunctionalization of ethylene

open access: yesNature Communications, 2022
DPPEs are fundamental bidentate ligands with a C2-alkyl-linker chain for many transition-metal-catalyzed reactions. Here, authors utilize the AFIR method to develop a practical synthetic method for both symmetric and unsymmetric DPPEs with ethylene.
Hideaki Takano   +6 more
doaj   +1 more source

Reaction-diffusion dynamics: confrontation between theory and experiment in a microfluidic reactor

open access: yes, 2003
We confront, quantitatively, the theoretical description of the reaction-diffusion of a second order reaction to experiment. The reaction at work is \ca/CaGreen, and the reactor is a T-shaped microchannel, 10 $\mu$m deep, 200 $\mu$m wide, and 2 cm long ...
A. Kamholz   +12 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Seguridad y conflicto en Lérida: el discurso sobre los jóvenes y los usos del espacio

open access: yesOñati Socio-Legal Series, 2010
The present article describes the result of the qualitative paragraph of two researches on conflict, crime and safety in the city of Lérida (central Catalonia), from a discursive-cultural perspective.
Gabriela Rodríguez Fernández
doaj  

Fractional Reaction-Diffusion Equation

open access: yes, 2003
A fractional reaction-diffusion equation is derived from a continuous time random walk model when the transport is dispersive. The exit from the encounter distance, which is described by the algebraic waiting time distribution of jump motion, interferes ...
Seki, Kazuhiko   +2 more
core   +1 more source

The Metallacyclopentane-Olefin Interchange Reaction [PDF]

open access: yes, 1977
Tris(triphenylphosphine)tetramethylenenickel(II) and biscyclopentadienyltetramethylenetitanium, prepared from the reaction of a 1,4-dilithiobutane and the transition metal dihalides react with olefins to produce substituted metallacyclopentanes; the ...
Grubbs, Robert H., Miyashita, Akira
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

THE IMAGE OF RUSSIA IN THE LANGUAGE CONSCIOUSNESS OF RUSSIAN AND CHINESE STUDENTS ACCORDING TO THE DATA OF ASSOCIATIVE EXPERIMENTS (QUANTITATIVE ANALYSIS)

open access: yesМногоязычие в образовательном пространстве, 2023
The paper examines the quantitative results of free associative experiments conducted among Russian students and Chinese students studying Russian as a foreign language, with the stimulus word “Russia.” The resulting associates are ordered according to ...
A.B. Antonova, Song Luling
doaj  

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