Results 51 to 60 of about 2,720,288 (295)

New high magnetic field phase of the frustrated $S=1/2$ chain compound LiCuVO$_4$

open access: yes, 2010
Magnetization of the frustrated $S=1/2$ chain compound LiCuVO$_4$, focusing on high magnetic field phases, is reported. Besides a spin-flop transition and the transition from a planar spiral to a spin modulated structure observed recently, an additional ...
A. F. Andreev   +31 more
core   +1 more source

Anomalous Chiral Symmetry Breaking above the QCD Phase Transition [PDF]

open access: yes, 1998
We study the anomalous breaking of U_A(1) symmetry just above the QCD phase transition for zero and two flavors of quarks, using a staggered fermion, lattice discretization.
C. Bernard   +20 more
core   +2 more sources

What is a just transition?

open access: yes
This book chapter provides an overview of the concept of a just transition, including its definitions, historical background, and key research questions. At its core, a just transition is achieving climate and environmental goals in a socially equitable manner.
Darren McCauley   +2 more
openaire   +3 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Just transition in post-mining regions

open access: yesInvestigaciones Regionales - Journal of Regional Research
A just transition is essential for sustainable policies and a net-zero economy, ensuring that climate action is aligned with social justice and inclusive of vulnerable communities.
Pablo García García
doaj   +1 more source

The finite temperature transition for 3-flavour lattice QCD at finite isospin density

open access: yes, 2004
We simulate 3-flavour lattice QCD with a small chemical potential $\mu_I$ for isospin, at temperatures close to the finite temperature transition. Using quark masses just above the critical mass for zero chemical potential, we determine the position of ...
Allton   +10 more
core   +2 more sources

HIV is not just a transitional problem [PDF]

open access: yesBMJ, 2005
The HIV and AIDS epidemic in eastern Europe and central Asia is changing.1–2 Despite data limitations, this region shows the fastest growth in HIV in the world.3 At the end of 2004, between 920 000 and 2.1 million people in the region were living with HIV, compared with about 160 000 in 1995.
openaire   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

Defining a ‘Just Energy Investment’ for the ASEAN Just Transition

open access: yesEnvironmental and Sustainability Indicators
Governments across the world have been updating their energy and climate policies since the 2015 Paris Agreement. One common feature is the advent of long-term plans for a net-zero economy for 2050 and also in some cases to 2060.
Raphael J. Heffron   +3 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

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