Results 151 to 160 of about 451,380 (271)

On Polynomials and Their Polar Derivative

Mathematical Sciences and Applications E-Notes, 2016
openaire   +3 more sources

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

Journal of Applied Polymer Science, Volume 143, Issue 40, October 20, 2026.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar, François Brouillette, Zahahe Oulame Mouandhoime, Saïd Elkoun, Mathieu Robert   +4 more
wiley   +1 more source

Performance of the Sardinia Radio Telescope Using the Dual-Polarized Cryogenic C-Low Receiver in the 4.2-5.6 GHz Frequency Band. [PDF]

Sensors (Basel)
Schirru L, Egron E, Ladu A, Gaudiomonte F, Attoli A, Cabras A, Carboni G, Loi F, Marchegiani P, Marongiu M, Mulas S, Murgia M, Pili M, Pellizzoni A, Poppi S, Schirru F, Vacca V.   +16 more
europepmc   +1 more source

From the help desk: Polynomial distributed lag models [PDF]

Polynomial distributed lag models (PDLs) are finite-order distributed lag models with the impulse-response function constrained to lie on a polynomial of known degree.
Allen McDowell
core  

A Static Phantom for Harmonization of Hyperpolarized [1–13C]Pyruvate Metabolic Magnetic Resonance Imaging

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1769-1777, October 2026.
ABSTRACT PurposeTo develop and characterize a static, reusable 13C phantom designed to assess and support the harmonization of MRI setups used for hyperpolarized (HP) [1‐13C]pyruvate imaging. MethodsThe phantom was designed as a 200‐mm‐diameter polycarbonate sphere filled with 8M natural abundance urea and incorporating distinct modules for assessing ...
Kristina P. Jacobsen, Ingeborg S. Skre, Rie B. Olin, Mathilde H. Lerche   +3 more
wiley   +1 more source

Exact Combinatorial Density of States for the Critical 1D Ising Model. [PDF]

Entropy (Basel)
Castorene B, Peña FJ, Groves MH, Vargas P.   +3 more
europepmc   +1 more source

Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer

Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.
ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi, Simone Riva, Luca Belluzzi, Stefano Serra‐Capizzano   +3 more
wiley   +1 more source

Visible and near-infrared spectroscopic method for correlative joint tissue analysis and visual and histologic grading. [PDF]

MethodsX
Spurri A, Kust SJ, Arnold A, Baylin P, Allen N, Fentaw B, Barnes L, Proca D, Pleshko N.   +8 more
europepmc   +1 more source

Polarizing trajectories of colonial ideologies: A latent class growth analysis of historical negation and symbolic exclusion

British Journal of Social Psychology, Volume 65, Issue 4, October 2026.
Abstract The impassioned advocacy both for and against Indigenous rights in recent years suggests a polarization of public opinion. Accordingly, we theorize increasingly divided endorsement of two ideologies that challenge Indigenous rights to material and symbolic equality—historical negation and symbolic exclusion, respectively (the ‘Dark Duo ...
Zoe Bertenshaw, Chris G. Sibley, Danny Osborne   +2 more
wiley   +1 more source

Polarization-insensitive stimulated Brillouin scattering filter with birefringence compensation. [PDF]

PLoS One
Li J, Tan X, Liu J, Xu Y.
europepmc   +1 more source