Results 21 to 30 of about 557,661 (262)

Metric cotype [PDF]

open access: yesAnnals of Mathematics, 2006
We introduce the notion of cotype of a metric space, and prove that for Banach spaces it coincides with the classical notion of Rademacher cotype. This yields a concrete version of Ribe's theorem, settling a long standing open problem in the nonlinear theory of Banach spaces. We apply our results to several problems in metric geometry.
Mendel, Manor, Naor, Assaf
openaire   +5 more sources

Fermat Metrics [PDF]

open access: yesSymmetry, 2021
In this paper we present a survey of Fermat metrics and their applications to stationary spacetimes. A Fermat principle for light rays is stated in this class of spacetimes and we present a variational theory for the light rays and a description of the multiple image effect.
openaire   +2 more sources

Reliability and validity of the Transthyretin Amyloidosis – Quality of Life (ATTR-QOL) Questionnaire impact scales

open access: yesJournal of Patient-Reported Outcomes
Background The diversity of disease phenotypes associated with transthyretin (ATTR) amyloidosis poses challenges for measurement of health outcomes. The Transthyretin Amyloidosis – Quality of Life (ATTR-QOL) Questionnaire is a disease-specific patient ...
Andrew Lovley   +7 more
doaj   +1 more source

Comparison of the Evaluation Metrics for Neural Grammatical Error Correction With Overcorrection

open access: yesIEEE Access, 2020
Grammar error correction (GEC) refers to the proper correction of grammatical errors in a given sentence. Important factors to consider in GEC are not only the grammatical correction of the sentence, but also the recognition of a correct sentence in ...
Chanjun Park   +3 more
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

The patient experience of hereditary angioedema: findings from a racially diverse sample of adult patients

open access: yesOrphanet Journal of Rare Diseases
Background Hereditary angioedema (HAE) is a rare, autosomal dominant disorder causing swelling attacks in various parts of the body, resulting in symptoms and impacts on health-related quality of life (HRQoL).
Lynne Broderick   +5 more
doaj   +1 more source

The Effect of Metric Space on the Results of Graph Based Colour Image Segmentation

open access: yesCommunications, 2012
This paper deals with the impact of the metric space on the results of colour image segmentation algorithm. Distance and similarity measures are important tasks for quality of colour image segmentation.
Martina Zachariasova   +5 more
doaj   +1 more source

Perspective: Does Realism Improve Presence in VR? Suggesting a Model and Metric for VR Experience Evaluation

open access: yesFrontiers in Virtual Reality, 2021
The concepts of “immersion” and “presence” have been considered as staple metrics for evaluating the quality of virtual reality experiences for more than five decades, even as the concepts themselves have evolved in terms of both technical and ...
Sungchul Jung, Robert. W Lindeman
doaj   +1 more source

Cup‐Like Nuclei Is a Hallmark of DUX4/ERG Acute Lymphoblastic Leukemia and Reveals Cytoplasmic Mitochondria Accumulation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Cup‐like nuclei are a distinctive morphological feature observed in certain cases of acute lymphoblastic leukemia (ALL). We provide evidence that they characterize DUX4/ERG ALL independently of IKZF1 deletion and reveal marked mitochondrial accumulation in this ALL subset.
Chloé Arfeuille   +9 more
wiley   +1 more source

Neighbors-Based Graph Construction for Dimensionality Reduction

open access: yesIEEE Access, 2019
Dimensionality reduction is a fundamental task in the field of data mining and machine learning. In many scenes, examples in high-dimensional space usually lie on low-dimensional manifolds; thus, learning the low-dimensional embedding is important.
Hui Tian   +3 more
doaj   +1 more source

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