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Polypoid endometrioma mimicking malignant transformation: a case report and systematic review [PDF]

open access: yesF&S Reports
Objective: To report a case of polypoid ovarian endometrioma mimicking malignant transformation, review the literature on this rare entity, and highlight its implications for surgical management and fertility preservation.
Guillaume Parpex, M.D., PhD.   +8 more
doaj   +2 more sources

Evaluating Geostationary Satellite-Based Approaches for NDVI Gap Filling in Polar-Orbiting Satellite Observations [PDF]

open access: yesSensors
The Normalized Difference Vegetation Index (NDVI) derived from polar-orbiting satellites is widely used for vegetation monitoring; however, its temporal continuity is often limited by cloud contamination and fixed revisit cycles.
Han-Sol Ryu   +3 more
doaj   +2 more sources

A Lochs-Type Approach via Entropy in Comparing the Efficiency of Different Continued Fraction Algorithms

open access: yesMathematics, 2021
We investigate the efficiency of several types of continued fraction expansions of a number in the unit interval using a generalization of Lochs theorem from 1964.
Dan Lascu, Gabriela Ileana Sebe
doaj   +1 more source

Measurable Sensitivity for Semi-Flows

open access: yesMathematics, 2023
Sensitive dependence on initial conditions is a crucial characteristic of chaos. The concept of measurable sensitivity (MS) was introduced as a measure-theoretic version of sensitive dependence on initial conditions.
Weizhen Quan   +5 more
doaj   +1 more source

Some Observations on Dirac Measure-Preserving Transformations and their Results [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
Dirac measure is an important measure in many related branches to mathematics. The current paper characterizes measure-preserving transformations between two Dirac measure spaces or a Dirac measure space and a probability measure space.
Azadeh Alijani, Zohreh Nazari
doaj   +1 more source

Measure of Similarity between GMMs by Embedding of the Parameter Space That Preserves KL Divergence

open access: yesMathematics, 2021
In this work, we deliver a novel measure of similarity between Gaussian mixture models (GMMs) by neighborhood preserving embedding (NPE) of the parameter space, that projects components of GMMs, which by our assumption lie close to lower dimensional ...
Branislav Popović   +4 more
doaj   +1 more source

Efficient CSL Model Checking Using Stratification [PDF]

open access: yesLogical Methods in Computer Science, 2012
For continuous-time Markov chains, the model-checking problem with respect to continuous-time stochastic logic (CSL) has been introduced and shown to be decidable by Aziz, Sanwal, Singhal and Brayton in 1996.
Lijun Zhang   +3 more
doaj   +1 more source

Non-isometric quantum error correction in gravity

open access: yesJournal of High Energy Physics, 2023
We construct and study an ensemble of non-isometric error correcting codes in a toy model of an evaporating black hole in two-dimensional dilaton gravity. In the preferred bases of Euclidean path integral states in the bulk and Hamiltonian eigenstates in
Arjun Kar
doaj   +1 more source

Experimental analysis of wavelet decomposition on edge detection; pp. 284–298 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2019
The influence of different wavelet transformations and decomposition on edge detection was examined, using convenient operators to images of various complexities. Berkeley Segmentation Database images with the corresponding ground truth were used.
Vladimir Maksimovic   +4 more
doaj   +1 more source

Fourier Transforms and Measure-Preserving Transformations [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
There exists a continuous function f f on the real line, vanishing at infinity, such that, for every measure-preserving ...
openaire   +1 more source

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