Results 81 to 90 of about 22,654 (315)

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

How Progressive is the U.S. Federal Tax System? A Historical and International Perspective [PDF]

open access: yes
This paper provides estimates of federal tax rates by income groups in the United States since 1960, with special emphasis on very top income groups. We include individual and corporate income taxes, payroll taxes, and estate and gift taxes.
Emmanuel Saez, Thomas Piketty
core  

Are There Opportunities to Increase Social Security Progressivity Despite Underfunding? [PDF]

open access: yes, 2008
Reviews the payroll tax, Social Security's benefit formula, and outcomes by race, gender, and earnings level, and explores why low-income and minority groups do not receive greater returns on contributions.
Gordon B. T. Mermin   +1 more
core   +2 more sources

On the Nature of Progress [PDF]

open access: yes, 2011
We identify a simple relationship that unifies seemingly unrelated progress conditions ranging from the deadlock-free and starvation-free properties common to lock-based systems, to non-blocking conditions such as obstruction-freedom, lock-freedom, and wait-freedom.
Herlihy, Maurice, Shavit, Nir N.
openaire   +3 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Progressive tax development in the taxation system: acomparative analysis of the EU and Central Asian countries

open access: yesRetos
The study aims to compare the experience of implementing a progressive taxation system in the EU countries with the taxation system in Central Asia to establish the prospects for reforms in this area.
Azamat Baimagambetov, Serik Omirbayev
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Rich States, Poor States: ALEC-Laffer State Economic Competitiveness Index [PDF]

open access: yes, 2011
Ranks states' business climates based on income, population growth, and employment and outlook based on current tax policies; analyzes their fiscal conditions; reviews 2010 fiscal reform initiatives; and recommends policies to spur economic ...
Arthur B. Laffer   +2 more
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Proportionality–Progressivity of Biological Assets for Agricultural Prosperity

open access: yesNova Scientia
The aim of this research is to analyze the application of the principle of proportionality–progressivity to the tax rates established by local Mexican governments on biological assets, assessing their impact on the tax burden regression of small, medium,
Enriqueta Mancilla Rendón   +1 more
doaj   +1 more source

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