Results 61 to 70 of about 5,967,034 (302)

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Probability density estimation with tunable kernels using orthogonal forward regression [PDF]

open access: yes, 2010
A generalized or tunable-kernel model is proposed for probability density function estimation based on an orthogonal forward regression procedure. Each stage of the density estimation process determines a tunable kernel, namely, its center vector and ...
Hong, Xia   +3 more
core   +1 more source

An orthogonal forward regression technique for sparse kernel density estimation [PDF]

open access: yes, 2008
Using the classical Parzen window (PW) estimate as the desired response, the kernel density estimation is formulated as a regression problem and the orthogonal forward regression technique is adopted to construct sparse kernel density (SKD) estimates ...
Chen, Sheng, Hong, X., Harris, Chris J.
core   +2 more sources

Z Boson Emission by a Neutrino in de Sitter Expanding Universe

open access: yesParticles
The production of Z bosons in emission processes by neutrinos in the expanding de Sitter universe is studied by using perturbative methods. The total probability and transition rate for the spontaneous emission of a Z boson by a neutrino is computed ...
Mihaela-Andreea Băloi   +2 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Sharp Estimates of Transition Probability Density for Bessel Process in Half-Line [PDF]

open access: yesPotential Analysis, 2015
In this paper we study the Bessel process R_t^{(μ)} with index μ\neq 0 starting from x>0 and killed when it reaches a positive level a, where x>a>0. We provide sharp estimates of the transition probability density p_a^{(μ)}(t,x,y) for the whole range of space parameters x,y>a and every t>0.
Bogus, Kamil, Małecki, Jacek
openaire   +2 more sources

Effective field theories for dark matter pairs in the early universe: cross sections and widths

open access: yesJournal of High Energy Physics, 2023
In order to predict the cosmological abundance of dark matter, an estimation of particle rates in an expanding thermal environment is needed. For thermal dark matter, the non-relativistic regime sets the stage for the freeze-out of the dark matter energy
S. Biondini   +3 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Transition density estimates for Brownian motion on scale irregular Sierpinski gaskets [PDF]

open access: yesAnnales de l'Institut Henri Poincare (B) Probability and Statistics, 1997
The authors construct Brownian motion on fractals, based on the Sierpiński gasket, which are spatially homogeneous but which do not have any exact self-similarity. They obtain explicit estimates for the transition densities of this process. These lower and upper estimates are the best possible of this form up to some constants.
Barlow, M, Hambly, B
openaire   +3 more sources

Energy transition, economic efficiency, and resource use: Evidence on energy efficiency in APEC economies

open access: yesEnergy Strategy Reviews
Energy inefficiency remains a key challenge for Asia-Pacific Economic Cooperation (APEC) economies despite progress in renewable-energy deployment, industrial modernization, and regional energy-policy cooperation.
Zhile Liu   +3 more
doaj   +1 more source

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