Results 51 to 60 of about 2,140,151 (276)

An Accelerated Chow and Liu Algorithm: Fitting Tree Distributions to High Dimensional Sparse Data [PDF]

open access: yes, 1999
Chow and Liu introduced an algorithm for fitting a multivariate distribution with a tree (i.e. a density model that assumes that there are only pairwise dependencies between variables) and that the graph of these dependencies is a spanning tree.
An Accelerated Chow   +2 more
core   +2 more sources

Spacetime Transformations from a Uniformly Accelerated Frame

open access: yes, 2013
We use Generalized Fermi-Walker transport to construct a one-parameter family of inertial frames which are instantaneously comoving to a uniformly accelerated observer. We explain the connection between our approach and that of Mashhoon. We show that our
Friedman, Yaakov, Scarr, Tzvi
core   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Genome-wide identification and expression profiling of growth‑regulating factor (GRF) and GRF‑interacting factor (GIF) gene families in chickpea and pigeonpea

open access: yesScientific Reports
The growth-regulating factor (GRF) and GRF-interacting factor (GIF) families encode plant-specific transcription factors and play vital roles in plant development and stress response processes.
Mitesh Khisti   +6 more
doaj   +1 more source

The After-Effect of Accelerated Intermittent Theta Burst Stimulation at Different Session Intervals

open access: yesFrontiers in Neuroscience, 2020
ObjectiveThe study aims to investigate the after-effect of three sessions of intermittent theta-burst stimulation (iTBS) on motor cortical excitability. The iTBS was induced over the primary motor cortex (M1) at different time intervals.MethodsThe study ...
Fengyun Yu   +10 more
doaj   +1 more source

Acceleration and Classical Electromagnetic Radiation

open access: yes, 2007
Classical radiation from an accelerated charge is reviewed along with the reciprocal topic of accelerated observers detecting radiation from a static charge. This review commemerates Bahram Mashhoon's 60th birthday.Comment: To appear in Gen.
B. Mashhoon   +12 more
core   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Hydromagnetic Flow Past an Exponentially Accelerated Isothermal Vertical Plate with Uniform Mass Diffusion in the Presence of Chemical Reaction of first Order

open access: yesInternational Journal of Applied Mechanics and Engineering, 2013
An exact solution of an unsteady flow past an exponentially accelerated infinite isothermal vertical plate with uniform mass diffusion in the presence of a transverse magnetic field has been studied.
R. Muthucumaraswamy, V. Valliammal
doaj   +1 more source

Atypical “accelerated” chronic lymphocytic leukemia with abnormal lymphocyte chromatin clumping, bone involvement, and exceptional response to Imbruvica

open access: yesCancer Reports, 2022
Background The “accelerated” chronic lymphocytic leukemia (aCLL) is a relatively rare form of CLL progression. The expanded proliferation centers in aCLL have been associated with adverse prognostic features and propensity to more aggressive behavior ...
Leonid L. Yavorkovsky
doaj   +1 more source

Einstein's accelerated reference systems and Fermi-Walker coordinates

open access: yes, 2017
We show that the uniformly accelerated reference systems proposed by Einstein when introducing acceleration in the theory of relativity are Fermi-Walker coordinate systems.
Llosa, Josep
core   +1 more source

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