Results 101 to 110 of about 116,618 (260)

Some Tests of Permutation Symmetry

open access: yesThe Annals of Mathematical Statistics, 1959
Summary. The two-sample sign test is viewed as a test for the permutation symmetry of a bivariate distribution, and extensions to k-variate distributions are sought. Friedman's rank test, [1], although originally intended as a substitute for the F-test in a two-way classification, is such an extension.
openaire   +2 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Permutation Tests

open access: yes, 2021
En este trabajo se presentan los tests de permutaciones de forma tanto teórica como práctica. El Capítulo 1 es una breve introducción para situar al lector en el punto de partida del proyecto. Se definen los métodos no paramétricos y algunos conceptos claves. El Capítulo 2 es el núcleo teórico del ensayo.
openaire   +2 more sources

Classifier Selection with Permutation Tests

open access: yes, 2017
This work presents a content-based recommender system for machine learning classifier algorithms. Given a new data set, a recommendation of what classifier is likely to perform best is made based on classifier performance over similar known data sets.
Arias Vicente, Marta   +2 more
openaire   +3 more sources

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

ON THE METHOD OF DETECTING CHANGES IN TREND USING PERMUTATION TESTS

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2015
This article presents a proposal of the test for detecting changes in trend. The proposed procedure refers to the permutation test. The use of this procedure allowed the adoption of fairly general assumptions.
Michał Miłek, Grzegorz Kończak
doaj  

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Robust Two-Sample Permutation Tests

open access: yesThe Annals of Statistics, 1985
In this paper the author proposes a new robust two-sample permutation test (RPT) with data-dependent censoring for testing that the joint distribution of two samples is invariant under permutations. The test is shown to be asymptotically optimal against restricted fixed-width neighborhoods, since no other non-parametric test has a p-value with larger ...
openaire   +3 more sources

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

Permutation test for periodicity in short time series data

open access: yesBMC Bioinformatics, 2006
Background Periodic processes, such as the circadian rhythm, are important factors modulating and coordinating transcription of genes governing key metabolic pathways.
Ptitsyn Andrey A   +2 more
doaj   +1 more source

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