Results 111 to 120 of about 3,387 (229)

Non-Rigid Multi-Modal 3D Medical Image Registration Based on Foveated Modality Independent Neighborhood Descriptor

open access: yesSensors, 2019
The non-rigid multi-modal three-dimensional (3D) medical image registration is highly challenging due to the difficulty in the construction of similarity measure and the solution of non-rigid transformation parameters.
Feng Yang, Mingyue Ding, Xuming Zhang
doaj   +1 more source

Nonlocal minimal surfaces: Interior regularity, quantitative estimates and boundary stickiness [PDF]

open access: yes, 2016
We consider surfaces which minimize a nonlocal perimeter functional and we discuss their interior regularity and rigidity properties, in a quantitative and qualitative way, and their (perhaps rather surprising) boundary behavior.
Dipierro, Serena   +3 more
core   +1 more source

Rural land rental markets in developing countries: Can survey design innovations improve land market participation statistics?

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract A longstanding puzzle in the African land rental market literature is the often‐observed discrepancy between the number of tenants (renters‐in) and the much smaller number of landlords (renters‐out) in survey data. If this discrepancy derives from systematic biases in survey data responses on rental market participation, then the existing body
Gashaw T. Abate   +3 more
wiley   +1 more source

High School GPA and Exam Scores: Does Their Relevance for First‐Year Academic Performance Vary With Program Selectivity?

open access: yesBulletin of Economic Research, EarlyView.
ABSTRACT This paper examines student admissions to higher education based on past performance, focusing on two measures: high school GPA and national exam scores. GPA is teacher‐assigned and based on repeated assessments, while these exams are externally graded, one‐off standardized tests. Using a nationwide dataset, we investigate how the relevance of
Pedro Luis Silva   +2 more
wiley   +1 more source

Controllable Intrinsic Surface Pattern Generation Using Slime Mold Simulations

open access: yesComputer Graphics Forum, EarlyView.
Abstract Surface‐based pattern simulations have proven valuable for texture design and scientific visualization, but existing methods face several limitations. Most simulations either target a narrow range of pattern types (e.g. spots, branching) or support a broad range of patterns at the cost of time‐consuming parameter tuning.
Jeffrey Layton   +2 more
wiley   +1 more source

Nonlocal Sar Image Despeckling by Convolutional Neural Networks

open access: yes, 2019
Nonlocal methods are state-of-the-art in SAR despeckling, thanks to their ability to exploit image self-similarity. Given sufficient training data, however, methods based on deep learning have proven highly competitive.
G. Scarpa   +7 more
core   +1 more source

Contesting Nationalism: Global Citizenship and Chinese Identity in Hong Kong

open access: yesNations and Nationalism, EarlyView.
ABSTRACT Global citizenship highlights that one's identity transcends national borders, whereas nationalism prioritises individuals' identification with a specific nation‐state. In the context of nation‐building, tension could arise between global citizenship and national identity.
Shen Yang
wiley   +1 more source

Multi‐generation analysis of whether local or genetically mixed populations perform best in restoration plantings

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Proper selection of genetic material is critical for restoring populations, with local seed often selected to maximize local adaptation. But if local populations are small, inbred, or maladapted, then including genotypes from various populations may enhance population growth and long‐term adaptation.
Regan L. Cross, Christopher G. Eckert
wiley   +1 more source

Effects of absorption and inhibition during grating formation in photopolymer materials

open access: yes, 2006
Photopolymer materials are practical materials for use as holographic recording media, as they are inexpensive and self-processing (dry processed). Understanding the photochemical mechanisms present during recording in these materials is crucial to ...
Kelly, John V.   +4 more
core   +1 more source

Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1973-2102, August 2026.
ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley   +1 more source

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