Results 161 to 170 of about 166,499 (273)

The impact of isosmotic conditions on the metabolism and hypoxia tolerance of a reportedly oxyconforming teleost

Journal of Fish Biology, EarlyView.
Abstract Fish must manage the competing demands of ion balance and gas exchange across the gills – a physiological tension known as the osmorespiratory compromise. In dynamic estuarine environments, the osmorespiratory compromise may be exacerbated by variable salinity and periods of hypoxia that demand high respiratory work.
Timothy D. Clark, Luis L. Kuchenmüller, Elizabeth C. Hoots, Maryane Gradito, Jake M. Martin   +4 more
wiley   +1 more source

Visual field prediction using K-means clustering in patients with primary open angle glaucoma. [PDF]

Int J Ophthalmol
Lee J, Kim J, Kim H, Moon S, Kim E, Jeong S, Yang H, Lee J.   +7 more
europepmc   +1 more source

Optimal Simple Ratings

The Journal of Industrial Economics, EarlyView.
ABSTRACT We study optimal simple rating systems that partition sellers into a finite number of tiers. We show that optimal ratings must be threshold partitions, and that for linear supply and Cournot competition with constant marginal cost, optimal thresholds solve a k‐means clustering problem requiring only the quality distribution.
Hugo Hopenhayn, Maryam Saeedi
wiley   +1 more source

Effects of nicotinamide supplementation in normal-tension glaucoma: a crossover placebo-controlled randomised clinical trial. [PDF]

Br J Ophthalmol
Ha A, Kim YK, Lee CK, Williams PA, Morgan JE, Shin YI, Kim E, Kim M, Rho S.   +8 more
europepmc   +1 more source

RPM and Vertical Integration With Upstream Competition and Noncontractible Efforts

The Journal of Industrial Economics, EarlyView.
ABSTRACT We study RPM and vertical integration in a common agency setting with two differentiated manufacturers and one retailer, where consumer demand depends on both the manufacturers' and retailer's noncontractible efforts. Under vertical separation, the adoption of maximum RPM by both manufacturers is an equilibrium and intensifies competition ...
Michele Bisceglia, Mark Israel, Salvatore Piccolo, Paolo Ramezzana   +3 more
wiley   +1 more source

A New Fit Assessment Framework for Common Factor Models Using Generalized Residuals. [PDF]

Psychometrika
Sung Y, Han Y, Liu Y.
europepmc   +1 more source

Automated Bandwidth Selection for Inference in Linear Models With Time‐Varying Coefficients

Journal of Time Series Analysis, EarlyView.
ABSTRACT The problem of selecting the smoothing parameter, or bandwidth, for kernel‐based estimators of time‐varying coefficients in linear models with possibly endogenous explanatory variables is considered. We examine automated bandwidth selection by means of cross‐validation, a nonparametric variant of Akaike's information criterion, and bootstrap ...
Charisios Grivas, Zacharias Psaradakis
wiley   +1 more source

Deformable registration and generative modelling of aortic anatomies by auto-decoders and neural ODEs. [PDF]

NPJ Biol Phys Mech
Tenderini R, Pegolotti L, Kong F, Pagani S, Regazzoni F, Marsden AL, Deparis S.   +6 more
europepmc   +1 more source

Adaptive Estimation for Weakly Dependent Functional Times Series

Journal of Time Series Analysis, EarlyView.
ABSTRACT We propose adaptive mean and autocovariance function estimators for stationary functional time series under 𝕃p−m‐approximability assumptions. These estimators are designed to adapt to the regularity of the curves and to accommodate both sparse and dense data designs.
Hassan Maissoro, Valentin Patilea, Myriam Vimond   +2 more
wiley   +1 more source

Spine Kinematic Alterations in Nordic Walking Under Two Different Speeds of 3 and 5 km/h-A Pilot Study. [PDF]

J Funct Morphol Kinesiol
Ivanov I, Tchorbadjieff A, Hristov O, Peev P, Gutev G, Ivanova S.   +5 more
europepmc   +1 more source