Results 121 to 130 of about 104,207 (331)

From quantum groups to genetic mutations

open access: yes, 2003
In the framework of the crystal basis model of the genetic code, where each codon is assigned to an irreducible representation of $U_{q \to 0}(sl(2) \oplus sl(2))$, single base mutation matrices are introduced.
Sciarrino, Antonino
core  

A Review on Luminescent Benzoselenadiazole Derivatives: Comparison with Benzothiadiazoles, Properties, Applications, and Trends

open access: yesChemistry – An Asian Journal, EarlyView.
This review explores the photophysical behavior and bioimaging applications of luminescent benzoselenadiazole (BSD) derivatives, in comparison with benzothiadiazole (BTD) analogues. Emerging trends highlight BSDs as promising tools in advanced phototechnology.
Brenno A. D. Neto   +2 more
wiley   +1 more source

Ultraviolet selection pressure on the earliest organisms [PDF]

open access: yes
Effects of UV selection pressure on evolutionary development patterns of early ...
Sagan, C.
core   +1 more source

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

Purine and pyrimidine synthesis differently affect the strength of the inoculum effect for aminoglycoside and β-lactam antibiotics

open access: yesMicrobiology Spectrum
The inoculum effect has been observed for nearly all antibiotics and bacterial species. However, explanations accounting for its occurrence and strength are lacking.
Daniella M. Hernandez   +17 more
doaj   +1 more source

High throughput sequencing analysis of RNA libraries reveals the influences of initial library and PCR methods on SELEX efficiency. [PDF]

open access: yes, 2016
The systemic evolution of ligands by exponential enrichment (SELEX) technique is a powerful and effective aptamer-selection procedure. However, modifications to the process can dramatically improve selection efficiency and aptamer performance.
Burnett, John C   +6 more
core  

DES‐Promoted Synthesis of 3,4‐Dihydropyrimidinones and Their Antidiabetic and Antioxidant Evaluation Supported With Computational Studies

open access: yesChemistry &Biodiversity, EarlyView.
DES‐promoted synthesis and antidiabetic evaluation of 3,4‐dihydropyrimidinones and their complementation with computational studies are reported. ABSTRACT A series of 3,4‐dihydropyrimidinone (DHPM) derivatives was synthesized using a green deep eutectic solvent (DES) system composed of ZnCl2 and urea, which acted simultaneously as solvent, catalyst ...
Gobind Kumar   +10 more
wiley   +1 more source

Synthesis and polymerization of 1-(2-diallylaminoethyl)pyrimidines

open access: yesDesigned Monomers and Polymers, 2018
We report the preparation and characterization of three pyrimidine-based monomers, specifically: 1-(2-diallylaminoethyl)uracil, 1-(2-diallylaminoethyl)thymine and 1-(2-diallylaminoethyl)cytosine.
Jomana Elaridi   +5 more
doaj   +1 more source

Recent Progress in the Preparation of Graphdiyne‐Based Materials

open access: yesChemistryEurope, EarlyView.
Graphdiyne (GDY) has emerged as a versatile carbon allotrope for cutting‐edge applications. To fully unlock the distinguished characteristics of GDY‐based materials, precise preparation is vital for structure control, which largely shapes the materials’ properties.
Ruiqiao Wu   +5 more
wiley   +1 more source

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