Results 51 to 60 of about 475 (219)

Food inflation pass‐through from agricultural imports in a small open economy

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley   +1 more source

Multiple solutions to a nonlinear elliptic equation involving Paneitz type operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
This paper deals with an elliptic equation involving Paneitz type operators on compact Riemannian manifolds with concave-convex nonlinearities and a real parameter. Nonlocal and multiple existence results are established.
Abdallah El Hamidi
doaj   +1 more source

Bifurcation near infinity for the Neumann problem with concave–convex nonlinearities

open access: yesComptes Rendus. Mathématique, 2014
In this Note, we study a class of Neumann parametric elliptic equations driven by a nonhomogeneous differential operator and with a reaction that exhibits competing terms (concave–convex nonlinearities). Using the Ambrosetti–Rabinowitz condition and related topological and variational arguments, we prove a bifurcation result for large values of the ...
Papageorgiou, Nikolaos S.   +1 more
openaire   +2 more sources

LLM‐Guided Parameter Optimization for Mechanistic CHO Cell Bioreactor Models

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Mechanistic models of Chinese Hamster Ovary (CHO) cell cultures are essential for efficient bioprocess development and control, yet parameter estimation remains a critical challenge in model calibration. As model complexity increases, the number of parameters grows and their values become highly system‐specific due to biological variability ...
Han Bit Kim   +4 more
wiley   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

open access: yesCarbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li   +14 more
wiley   +1 more source

One-dimensional elliptic equation with concave and convex nonlinearities

open access: yesElectronic Journal of Differential Equations, 2000
We establish the exact number of positive solutions for the boundary-value problem $$displaylines{ -(|u'|^{m-2} u')'=lambda u^q + u^pquad hbox{in }(0,1)cr u(0)= u(1)=0,, }$$ where $0leq q < m- 1 < p$ and $lambda$ is positive.
Justino Sanchez, Pedro Ubilla
doaj  

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik   +3 more
wiley   +1 more source

Shape of Yield Curves Under Instrument‐Based Parallel Shifts

open access: yesJournal of Futures Markets, EarlyView.
ABSTRACT This paper studies the shape of zero and par yield curves through the carry and convexity of zero‐bond and par–swap butterflies under instrument‐based parallel shifts: the component instruments are held fixed, and each instrument's own quote receives the same additive shock.
Jian Sun
wiley   +1 more source

When Do Employees Choose to Invest in Their Firms? An Empirical Examination of Factors Affecting Employees' Participation in Employee Stock Purchase Plans

open access: yesHuman Resource Management, EarlyView.
ABSTRACT The present study examined factors predicting employee participation in employee stock purchase plans (ESPPs). Despite the plausible benefits of ESPPs for participating employees, many employees do not participate in ESPPs even when they are eligible.
Joo Hun Han   +4 more
wiley   +1 more source

Multiple Solutions for Nonlocal Fourth-Order Equation with Concave–Convex Nonlinearities

open access: yesMathematics
This paper is devoted to a class of general nonlocal fourth-order elliptic equation with concave–convex nonlinearities. First, using the Z2-mountain pass theorem in critical point theory, we obtain the existence of infinitely many large energy solutions.
Ruiting Jiang, Chengbo Zhai
doaj   +1 more source

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