Results 261 to 270 of about 14,992,722 (358)

Output Quality, Productivity, and Demand: Evidence from the Chinese Steel Industry

The RAND Journal of Economics, EarlyView.
ABSTRACT Unobserved objective output quality complicates the analysis of firm productivity and demand because higher‐quality products entail higher costs but offer greater consumption benefits. Using a panel of firms with output quality data, we decompose quantity‐based productivity into fundamental productivity and the costs of quality, and separate ...
Jing Li, Shengyu Li, Hongsong Zhang
wiley   +1 more source

Surprisal Analysis-Based Compaction of Entangled Molecular States of Maximal Entropy. [PDF]

Entropy (Basel)
Hamilton JR, Remacle F, Levine RD.
europepmc   +1 more source

A group of a Lie algebra.

Journal für die reine und angewandte Mathematik (Crelles Journal), 1970
openaire   +1 more source

Why did Putin invade Ukraine? A theory of degenerate autocracy

American Journal of Political Science, EarlyView.
Abstract Many dictatorships end up with a series of disastrous decisions such as Hitler's attack on the Soviet Union or Saddam Hussein's aggression against Kuwait. Even if a certain policy choice is not ultimately fatal for the regime, such as Mao's Big Leap Forward or the Pol Pot's collectivization drive, they typically involve both a miscalculation ...
Georgy Egorov, Konstantin Sonin
wiley   +1 more source

Harary index of the zero divisor graph of upper triangular matrices. [PDF]

Sci Rep
Alshanqiti O, Sharma S, Bhat VK.
europepmc   +1 more source

Astigmatic changes after Descemet membrane endothelial keratoplasty (DMEK) in decompensated penetrating keratoplasty grafts

Acta Ophthalmologica, EarlyView.
Abstract Purpose To evaluate the surgery‐induced changes of astigmatism after Descemet membrane endothelial keratoplasty (DMEK) in eyes with failed previous penetrating keratoplasty (PK). Design Retrospective, interventional cohort study based on prospective DMEK database.
Florian Thomas Steinberg, Jithmi Weliwitage, Marie von Berg, Silvia Schrittenlocher, Simona Schlereth, Claus Cursiefen, Björn Bachmann   +6 more
wiley   +1 more source

Cryptographic protection of RGB images using SPN over Eisenstein integer ring modulo Eisenstein prime. [PDF]

Sci Rep
Sajjad M, Abdalrahem MK, Elsayed EE, Junjua MU, AlQahtani SA.   +4 more
europepmc   +1 more source

Modelling Patterns of Past Inundation Processes Combining Geoarchaeology and Morphometric Hydrological Analysis in the Shashe‐Limpopo Basin, South Africa

Archaeometry, EarlyView.
ABSTRACT Riverine and valley systems across the globe have been central to the development of past urban centres. By AD 900, the Shashe and Limpopo Rivers seem to have facilitated the interaction and integration of early farming communities in southern Africa. This paper focuses on the application of geoarchaeological perspectives made available by the
B. S. Nxumalo
wiley   +1 more source

Generalized triangle group based S-box construction for secure image encryption. [PDF]

Sci Rep
Abbasi AZ, Rafiq A, Jaghdam IH, Maatki C, Hassen W, Alshammari BM.   +5 more
europepmc   +1 more source

Examining associations between foundational and complex mathematics skills in people with Down syndrome and typically developing children

British Journal of Developmental Psychology, EarlyView.
Abstract Acquiring mathematical competence is essential to independent living. In this study, we investigated the mathematics profile in young people with Down syndrome (DS), and the relations between foundational and more complex mathematics skills.
Su Morris, Emily K. Farran, Katie A. Gilligan‐Lee   +2 more
wiley   +1 more source