Results 41 to 50 of about 537,274 (264)

Testing and interpreting assumptions of COX regression analysis

open access: yesCancer Research, Statistics, and Treatment, 2019
The COX regression analysis is like any statistical test that is based on multiple assumptions. This is a guide for how to test the assumptions and how to interpret the results.
Sampada Dessai, Vijay Patil
doaj   +1 more source

Diagnostics for the Cox model

open access: yesCommunications for Statistical Applications and Methods, 2017
The most popular regression model for the analysis of time-to-event data is the Cox proportional hazards model. While the model specifies a parametric relationship between the hazard function and the predictor vari-ables, there is no specification regarding the form of the baseline hazard function.
Yishu Xue, Elizabeth D. Schifano
openaire   +2 more sources

Analysis of overfitting in the regularized Cox model [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2019
Abstract The Cox proportional hazards model is ubiquitous in the analysis of time-to-event data. However, when the data dimension p   is comparable to the sample size N , maximum likelihood estimates for its regression parameters are ...
Mansoor Sheikh, Anthony C C Coolen
openaire   +4 more sources

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Particle Swarm Optimization for Penalize cox models in long-term prediction of breast cancer data

open access: yesIraqi Journal for Computer Science and Mathematics, 2023
The particle swarm optimization algorithm (PSO) was applied to penalize the Cox model for predicting long-term outcomes of breast cancer patients.
Ehab Abbas, Basad Al-Sarray
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

open access: yesFEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

From Transience to Recurrence for Cox–Ingersoll–Ross Model When b < 0

open access: yesMathematics, 2023
We consider the Cox–Ingersoll–Ross (CIR) model in time-dependent domains, that is, the CIR process in time-dependent domains reflected at the time-dependent boundary.
Mingli Zhang, Gaofeng Zong
doaj   +1 more source

Generalized Cox model for default times

open access: yesFrontiers of Mathematical Finance, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gueye, Djibril, Jeanblanc, Monique
openaire   +3 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

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

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