Results 61 to 70 of about 13,684 (169)

Orbifold Reduction Of The Quark-Lepton Symmetric Model

open access: yes, 2006
We investigate the quark-lepton symmetric gauge group in five dimensions, with the gauge symmetry broken by a combination of orbifold compactification of the extra dimension and the Higgs mechanism.
B. H. J. McKellar   +2 more
core   +1 more source

Inhibiting NAD+-dependent DNA ligase activity with 2-(cyclopentyloxy)-5'-deoxyadenosine (CPOdA) offers a new tool for DNA replication and repair studies in the model archaeon Haloferax volcanii [PDF]

open access: yes, 2015
DNA ligases play an essential role in many aspects of DNA metabolism in all three domains of life. The haloarchaeal organism Haloferax volcanii encodes both ATP- and NAD+-dependent DNA ligase enzymes designated LigA and LigN, respectively.
Giroux, Xavier, MacNeill, Stuart
core   +2 more sources

Pleistocene Climate Changes and Lineage Diversification of Sphenarium Grasshoppers (Orthoptera: Pyrgomorphidae)

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
We investigate the phylogeographic history and paleodistribution patterns of four closely related grasshopper species of the genus Sphenarium to test the relative impact of Pleistocene climate fluctuations on their diversification. We found that each species responded differently to these fluctuations, but their divergence, distribution, and ...
Salomón Sanabria‐Urbán   +4 more
wiley   +1 more source

An Electrochemical Color-Switchable RGB Dye: Tristable [2]Catenane [PDF]

open access: yes, 2005
We propose a design for an electrochemically driven RGB dye based on a tristable [2]catenane, in which the color of the molecule can be switched between Red, Green, and Blue by merely changing voltage.
Deng, Wei-Qiao   +3 more
core   +1 more source

Inheritance and enzymatic basis of anthocyanin malonylation in Fragaria × ananassa

open access: yesThe Plant Journal, Volume 124, Issue 2, October 2025.
Significance Statement Fruits from various cultivars of the cultivated strawberry (Fragaria × ananassa) exhibit significant variation in the levels of malonylated anthocyanins, which is attributed to the differential expression of malonyltransferase genes, whose products demonstrate acceptor substrate promiscuity.
Xiran Wang   +24 more
wiley   +1 more source

Has the minimum wage policy been important for reducing poverty in Brazil? A decomposition analysis for the period from 2002 to 2013

open access: yesEconomiA, 2019
This study aims to analyze the contribution of the minimum wage valorization policy to the reduction in poverty that occurred in the first decade of the 21st century in Brazil, considering not only the incidence of poverty but also its intensity and ...
Alessandra Scalioni Brito   +1 more
doaj   +1 more source

Networked Creativity on the Censored Web 2.0: Chinese Users’ Twitter-based Activities on the Issue of Internet Censorship [PDF]

open access: yesJournal of Contemporary Eastern Asia, 2015
In most of the world, the current trend in information technology is for open data movement that promotes transparency and equal access. An opposite trend is observed in China, which has the world’s largest Internet population.
Weiai Wayne Xu, Miao Feng
doaj   +1 more source

The Effect of Regioisomerism on the TADF Properties of Organic Dyes

open access: yesChemistryEurope, Volume 3, Issue 5, September 18, 2025.
The properties of TADF emitters are highly dependent on the chosen electron donor and acceptor, as well as the π‐system that links them together. Herein, we show that regioisomerism affects the physical properties of spirobifluorene‐based systems in solution, thin films and crystals.
Tim Silies   +5 more
wiley   +1 more source

Welfare systems, ageing and work: an OECD perspective

open access: yesPSL Quarterly Review, 2013
This paper examines the scale of the demographic problem facing OECD economies and the labour market trends among older workers, considering the macroeconomic implications of welfare provision for ageing on living standards and fiscal balances.
Ignazio Visco
doaj   +1 more source

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