Results 51 to 60 of about 4,682 (265)

Pseudodifferential operators with generalized symbols and regularity theory

Electronic Journal of Differential Equations, 2005
We study pseudodifferential operators with amplitudes $a_varepsilon (x,xi)$ depending on a singular parameter $varepsilon o 0$ with asymptotic properties measured by different scales.
Claudia Garetto, Todor Gramchev, Michael Oberguggenberger   +2 more
doaj  

Microwave‐Assisted Alcoholysis of Ethylene–Vinyl Acetate: Phenomenological and Thermal Evolution of EVAOH Terpolymers

Journal of Applied Polymer Science, EarlyView.
Microwave‐assisted alcoholysis converts EVA into EVAOH terpolymers, promoting a progressive transition from EVA‐like crystallites to VOH‐rich hydrogen‐bonded crystalline domains. Solvent‐controlled swelling influences conversion kinetics, while thermal analysis reveals a sigmoidal increase in melting temperature that a two‐population crystallization ...
Fernanda Trindade Gonzalez Dias, Aline Benittes dos Santos, Lucas Dall Agnol, Otávio Bianchi   +3 more
wiley   +1 more source

Fixed-Point and Random Fixed-Point Theorems in Preordered Sets Equipped with a Distance Metric

Mathematics
This paper explores fixed points for both contractive and non-contractive mappings in traditional b-metric spaces, preordered b-metric spaces, and random b-metric spaces.
Himanshu Baranwal, Ravindra Kishor Bisht, Arya Kumar Bedabrata Chand, Jen-Chih Yao   +3 more
doaj   +1 more source

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

Journal of Applied Polymer Science, EarlyView.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar, Ahmed Samet, Ahmed Hammami, Nuno Dourado, Ali Akrout, Mohamed Haddar   +5 more
wiley   +1 more source

Fixed point approximations via generalized MR-Kannan mappings in Banach spaces

Applied General Topology
In this paper, we introduce a generalization of the concept of MR-Kannan type contractions and utilize this condition to derive new fixed point theorems under both contractive and non-contractive conditions. Our approach enhances various existing results
Ravindra K. Bisht, Jay Singh
doaj   +1 more source

Working with laws, regularities and singularities in biology: The evolution of mammalian red blood cell size as a case study

The Anatomical Record, EarlyView.
Abstract Phylogenetic comparative methods have been used in recent literature to work with laws and test for regularities (evolutionary associations of quantitative features) and evolutionary singularities (features that evolved in a single taxon). We analyzed these uses epistemologically, taking the evolution of red‐blood‐cell mean corpuscular volume (
Jorge Cubo, Paul Aubier, Cassandra Cheyron, Isabelle Drouet   +3 more
wiley   +1 more source

Adaptive group bridge estimation for high-dimensional partially linear models

Journal of Inequalities and Applications, 2017
This paper studies group selection for the partially linear model with a diverging number of parameters. We propose an adaptive group bridge method and study the consistency, convergence rate and asymptotic distribution of the global adaptive group ...
Xiuli Wang, Mingqiu Wang
doaj   +1 more source

Asymptotically Flat and Regular Cauchy Data [PDF]

, 2002
I describe the construction of a large class of asymptotically flat initial data with non-vanishing mass and angular momentum for which the metric and the extrinsic curvature have asymptotic expansions at space-like infinity in terms of powers of a radial coordinate. I emphasize the motivations and the main ideas behind the proofs.
openaire   +3 more sources

Aberrant Neural Entrainment to Word‐Level Speech Patterns in Fragile X Syndrome: Evidence for a Statistical Learning Deficit

Autism Research, EarlyView.
ABSTRACT Fragile X syndrome (FXS), the most common inherited cause of intellectual disability and autism spectrum disorder, causes significant language and cognitive impairments. Statistical learning refers to the ability to extract patterns from sensory input through mere exposure and plays a central role in language acquisition.
Laura J. Batterink, Yanchen Liu, Grace Westerkamp, Jae Citarella, Peyton Siekierski, Lynxie Voorhees, Lauren E. Ethridge, Elizabeth Smith, Rana Elmaghraby, Craig A. Erickson, Zag ElSayed, Anubhuti Goel, Steve W. Wu, Ernest V. Pedapati   +13 more
wiley   +1 more source

Evolutionary dynamics on a regular networked structured and unstructured multi‐population

International Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract In this paper, we study collective decision‐making in a multi‐population framework, where groups of individuals represent whole populations that interact by means of a regular network. Each group consists of a number of players and every player can choose between two options.
Wouter Baar, Leonardo Stella, Dario Bauso   +2 more
wiley   +1 more source