Results 41 to 50 of about 57,510 (165)

Structural plasticity controlled by calcium based correlation detection

open access: yesFrontiers in Computational Neuroscience, 2008
Hebbian learning in cortical networks during development and adulthood relies on the presence of a mechanism to detect correlation between the presynaptic and the postsynaptic spiking activity.
Moritz Helias   +8 more
doaj   +1 more source

On Bernstein’s inequality for polynomials [PDF]

open access: yesAnalysis and Mathematical Physics, 2019
Bernstein's classical inequality asserts that given a trigonometric polynomial $T$ of degree $n\geq1$, the sup-norm of the derivative of $T$ does not exceed $n$ times the sup-norm of $T$. We present various approaches to prove this inequality and some of its natural extensions/variants, especially when it comes to replacing the sup-norm with the $L^p ...
Queffélec, Hervé, Zarouf, Rachid
openaire   +4 more sources

The Berlin Brain-Computer Interface: Progress Beyond Communication and Control

open access: yesFrontiers in Neuroscience, 2016
The combined effect of fundamental results about neurocognitive processes and advancements in decoding mental states from ongoing brain signals has brought forth a whole range of potential neurotechnological applications.
Benjamin Blankertz   +15 more
doaj   +1 more source

Crosstalk with renal proximal tubule cells drives acidosis-induced inflammatory response and dedifferentiation of fibroblasts via p38-singaling

open access: yesCell Communication and Signaling
Background Tubulointerstitial kidney disease associated microenvironmental dysregulation, like acidification, inflammation and fibrosis, affects tubule cells and fibroblasts.
Marie-Christin Schulz   +2 more
doaj   +1 more source

Extracellular Acidosis Modulates the Expression of Epithelial-Mesenchymal Transition (EMT) Markers and Adhesion of Epithelial and Tumor Cells

open access: yesNeoplasia: An International Journal for Oncology Research, 2019
Epithelial-to-mesenchymal transition (EMT) is an important process of tumor progression associated with increased metastatic potential. EMT can be activated by external triggers such as cytokines or metabolic parameters (e.g. hypoxia).
Anne Riemann   +5 more
doaj   +1 more source

Fiber counts and architecture of the human dorsal penile nerve

open access: yesScientific Reports, 2023
The human penis transmits behaviorally important sensory information via the dorsal penile nerve, which is required for initiation and maintenance of erection. The human penis differs from the penes of other hominids.
Elçin Tunçkol   +4 more
doaj   +1 more source

Socialización, educación y reproducción cultural: Bordieu y Bernstein

open access: yesRevista Interuniversitaria de Formación del Profesorado, 2005
Algunas de las aportaciones de las teorías de la reproducción, tan de moda en la sociología de la educación de décadas anteriores, siguen teniendo vigencia.
Mercedes Ávila Francés
doaj  

Equilibrium and response properties of the integrate-and-fire neuron in discrete time

open access: yesFrontiers in Computational Neuroscience, 2010
The integrate-and-fire neuron with exponential postsynaptic potentials is a frequently employed model to study neural networks. Simulations in discrete time still have highest performance at moderate numerical errors, which makes them first choice for ...
Moritz Helias   +8 more
doaj   +1 more source

A practical approach to illustrate the importance of the bodily energy and heat balances and of the associated regulatory loops to healthcare students

open access: yesBMC Medical Education
Background Training medical students is a demanding task, and some contents remain difficult to teach and understand. This also applies to topics that require increasing attention. For instance, obesity rates keep rising, while almost each year turns out
Anne Riemann   +5 more
doaj   +1 more source

Rapid odor processing in the honeybee antennal lobe network

open access: yesFrontiers in Computational Neuroscience, 2009
In their natural environment, many insects need to identify and evaluate behaviorally relevant odorants on a rich and dynamic olfactory background. Behavioral studies have demonstrated that bees recognize learned odors within less than 200ms, indicating ...
Sabine Krofczik   +5 more
doaj   +1 more source

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