Results 71 to 80 of about 533,221 (265)

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Speed-sensorless Control of Induction Motor Experience on Metro Vehicles

open access: yes机车电传动, 2014
Based on the principle of induction motor speed estimation, the stability of the estimation algorithm was analyzed, as well as the influence of voltage error and stator resistance error in motor model on speed estimation at very low speed condition in ...
MEI Wen-qing, LIU Yong, GAN Wei-wei
doaj  

Estimation for the Multivariate Errors-in-Variables Model with Estimated Error Covariance Matrix

open access: yesThe Annals of Statistics, 1984
The authors consider the estimation problem of multivariate errors-in- variables models. Let \(r\times 1\) row vectors \(y_ i\) and \(k\times 1\) row vectors \(x_ i\) satisfy \(y_ i=\beta_ 0+x_ i\beta\), \(i=1,2,...,n\), where \(\beta_ 0\) and \(\beta\) are 1\(\times r\) and \(k\times r\) matrices of parameters, respectively.
Amemiya, Yasuo, Fuller, Wayne A.
openaire   +3 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

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Adaptive Prescribed Performance Fault Estimation and Accommodation for a Class of Stochastic Nonlinear Systems

open access: yesIEEE Access, 2019
This paper studies the problem of adaptive fault estimation and accommodation for a class of stochastic nonlinear systems with unknown time-varying faults.
Qing Li   +4 more
doaj   +1 more source

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

The Comedy of Measurement Errors: Standard Error of Measurement and Standard Error of Estimation

open access: yesAdvances in Methods and Practices in Psychological Science
Testing is used to inform a range of critical decisions that help structure much of contemporary society. An unavoidable aspect of testing is that test scores are not infallible.
David J. Stanley, Jeffrey R. Spence
doaj   +1 more source

Multi-Sensor Adaptive Weighted Data Fusion Based on Biased Estimation

open access: yesSensors
In order to avoid the loss of optimality of the optimal weighting factor in some cases and to further reduce the estimation error of an unbiased estimator, a multi-sensor adaptive weighted data fusion algorithm based on biased estimation is proposed ...
Mingwei Qiu, Bo Liu
doaj   +1 more source

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