Results 61 to 70 of about 65,696 (291)

Scale, Skill‐Mix, and Access Implications of the Production of Appointments by Primary Care Practices in England

open access: yesHealth Economics, EarlyView.
ABSTRACT Primary medical care has traditionally been provided by small organisations. Recent policy developments in many countries have encouraged larger practices in the hope of benefiting from increasing returns to scale, but there is little research evidence to support this.
Tianchang Zhao   +2 more
wiley   +1 more source

Terahertz All‐Dielectric Maxwell Fisheye Lens Waveguide Crossings via Transformation Optics

open access: yesLaser &Photonics Reviews, EarlyView.
All‐silicon terahertz waveguide crossings based on Maxwell fisheye lenses are reshaped using transformation optics to interface with planar waveguides while reducing mode mismatch. Realized via subwavelength perforations in a single etching step, 2 × 2 and 3 × 3 crossings achieve broadband transmission with low loss and ultralow crosstalk across 220 ...
Nikolaos Xenidis   +2 more
wiley   +1 more source

Stability Switches and Hopf Bifurcation in a Kaleckian Model of Business Cycle

open access: yesAbstract and Applied Analysis, 2013
This paper considers a Kaleckian type model of business cycle based on a nonlinear delay differential equation, whose associated characteristic equation is a transcendental equation with delay dependent coefficients.
Luca Vincenzo Ballestra   +2 more
doaj   +1 more source

The radial action from probe amplitudes to all orders

open access: yesJournal of High Energy Physics, 2022
We extract the relativistic classical radial action from scattering amplitudes, to all orders in perturbation theory, in the probe limit. Our sources include point charges and monopoles, as well as the Schwarzschild and pure-NUT gravitational backgrounds.
Uri Kol, Donal O’Connell, Ofri Telem
doaj   +1 more source

Traces on the Sklyanin algebra and correlation functions of the eight-vertex model

open access: yes, 2005
We propose a conjectural formula for correlation functions of the Z-invariant (inhomogeneous) eight-vertex model. We refer to this conjecture as Ansatz.
Baxter R   +30 more
core   +4 more sources

Synthesis of Telechelic‐Type Polypeptides Functionalized with Aromatic Units and the Characterization of Their Structures and Thermal Properties

open access: yesMacromolecular Rapid Communications, EarlyView.
Polypeptide chains were extended from both ends of aromatic diamines by chemoenzymatic polymerization, resulting in the synthesis of telechelic polyglycines (TPG) and polyalanines (TPA). These telechelic polymers assembled into branched nanofibrils through π‐π stacking of aromatic rings, with the polymer backbones bent at the aromatic unit.
Yusuke Ueno   +3 more
wiley   +1 more source

A NEW ROOT–FINDING ALGORITHM USING EXPONENTIAL SERIES

open access: yesUral Mathematical Journal, 2019
In this paper, we present a new root-finding algorithm to compute a non-zero real root of the transcendental equations using exponential series. Indeed, the new proposed algorithm is based on the exponential series and in which Secant method is special ...
Srinivasarao Thota
doaj   +1 more source

Permutable entire functions satisfying algebraic differential equations

open access: yes, 2005
It is shown that if two transcendental entire functions permute, and if one of them satisfies an algebraic differential equation, then so does the other one.Comment: 5 ...
A E Eremenko   +21 more
core   +2 more sources

Comprehensive Surrogate Models for Predicting the Melt Conveying Characteristics of Channel Segments in High‐Performance Single‐Screw Extruders

open access: yesPolymer Engineering &Science, EarlyView.
Generalized analytical equations were developed that accurately predict the local pumping characteristics, viscous dissipation, and average shear rates in channels of both conventional and high‐performance single‐screw extruders. Applied within segmented extruder calculations, these models aid in screw design and process troubleshooting without the ...
Daniel Herzog   +3 more
wiley   +1 more source

Analytical solution of non-exponential decay in a simple resistor-capacitor circuit using the Lambert-Tsallis Wq function [PDF]

open access: yesRevista Brasileira de Ensino de Física
In this work, using the Lambert-Tsallis Wq function, we present the analytical solution for the non-exponential decay in a simple electrical circuit composed by two resistors, two capacitors and a DC power supply.
L.A.B. Ramos, R.V. Ramos
doaj   +1 more source

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