Results 41 to 50 of about 2,067,807 (144)

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

open access: yesActa Ophthalmologica, Volume 104, Issue 5, Page e516-e529, August 2026.
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   +6 more
wiley   +1 more source

Fast algebraic attacks [PDF]

open access: yes, 2009
In the present work we study algebraic attacks and cascading fast algebraic attack on stream ciphers using in their construction linear feedback shift registers.
Hána, Martin
core  

A Mixture of Distributed Lag Non‐Linear Models to Account for Spatially Heterogeneous Exposure‐Lag‐Response Associations

open access: yesStatistics in Medicine, Volume 45, Issue 15-17, July 2026.
ABSTRACT Environmental exposures, such as air pollution and extreme temperatures, have complex effects on human health. These effects are often characterized by non‐linear exposure‐lag‐response relationships and delayed impacts over time. Accurately capturing these dynamics is crucial for informing public health interventions.
Álvaro Briz‐Redón   +3 more
wiley   +1 more source

The effects of breath holding during high‐intensity land‐based ergometry in swimmers

open access: yesPhysiological Reports, Volume 14, Issue 13, July 2026.
Abstract The aim of this study was to compare cardiorespiratory responses during high‐intensity land‐based exercise between free‐breathing and breath‐holding conditions in swimmers. Twenty varsity swimmers (20 ± 2 years, 10 females) performed 20 s bouts of simultaneous arm and leg ergometry exercise at high intensity (total power output = 606 ± 76 W ...
Jeremy Walsh   +6 more
wiley   +1 more source

A short history of algebraic statistics [PDF]

open access: yes, 2008
In algebraic statistics, computational techniques from algebraic geometry become tools to address statistical problems. This, in turn, may prompt research in algebraic geometry. The basic ideas at the core of algebraic statistics will be presented. In
Eva Riccomagno, Riccomagno, Eva
core   +1 more source

Firm‐to‐Firm Trade: Imports, Exports, and the Labor Market

open access: yesEconometrica, Volume 94, Issue 4, Page 1135-1170, July 2026.
Customs data reveal the heterogeneity and granularity of relationships among buyers and sellers, showing how more exports to a destination break down into more firms selling there and more buyers per exporter. We develop a quantitative general equilibrium model of firm‐to‐firm matching that builds on this insight to separate the roles of iceberg costs ...
Jonathan Eaton   +2 more
wiley   +1 more source

Algebraic Immunity Hierarchy of Boolean Functions ∗ [PDF]

open access: yes, 2007
Algebraic immunity of Boolean functions is a very important concept in recently intro-duced algebraic attacks of stream cipher. For a n-variable Boolean function f, the algebraic immunity AIn(f) takes values in {0, 1,..., ⌈ n 2 ⌉}.
Ziran Tu, Yingpu Deng
core   +1 more source

Selective Targeting of Immune Checkpoints HLA‐G and CD47 Using Novel Dual Signaling Protein DSP216 Promotes Innate Anticancer Immunity

open access: yesAdvanced Science, Volume 13, Issue 35, 24 June 2026.
The inhibitory immune checkpoints HLA‐G and CD47 are expressed on certain tumor types and inhibit immune cells in the tumor microenvironment. DSP216 binds specifically to cancer cells expressing both HLA‐G and CD47, and blocks their inhibitory signaling.
Lisa J. Jacob   +12 more
wiley   +1 more source

Mechanoadaptation via Myosin Cytoplasmic Redistribution Protects Circulating Tumor Cells From Shear‐induced Death During Hematogenous Dissemination

open access: yesAdvanced Science, Volume 13, Issue 33, 15 June 2026.
This study investigates how CTCs survive varying shear stress during hematogenous metastasis. We uncover a self‐protection mechanism, by which non‐adherent CTCs adapt to high shearing milieu through accumulated cytoplasmic myosin‐mediated disruption of myosin‐actin binding, attenuating force transmission into chromatin to protect CTCs from shear ...
Cunyu Zhang   +10 more
wiley   +1 more source

Evolving balanced Boolean functions with optimal resistance to algebraic and fast algebraic attacks, maximal algebraic degree, and very high nonlinearity. [PDF]

open access: yes, 2013
Using simulated annealing, we derive several equivalence classes of balanced Boolean functions with optimum algebraic immunity, fast algebraic resistance, and maximum possible algebraic degree.
John A. Clark, James McLaughlin
core   +1 more source

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