Results 31 to 40 of about 1,622,433 (301)
Magnetic activity, differential rotation and dynamo action in the pulsating F9IV star KIC 5955122 [PDF]
, 2014 We present photometric spot modeling of the nearly four-year long light-curve of the Kepler target KIC 5955122 in terms of persisting dark circular surface features.
Bonanno, A. +5 more
core +1 more source
Synaptic Vesicle Proteins and Active Zone Plasticity [PDF]
Frontiers in Synaptic Neuroscience, 2016 Neurotransmitter is released from synaptic vesicles at the highly specialized presynaptic active zone (AZ). The complex molecular architecture of AZs mediates the speed, precision and plasticity of synaptic transmission. Importantly, structural and functional properties of AZs vary significantly, even for a given connection.
Kittel, Robert J., Heckmann, Manfred
openaire +3 more sources
eLife, 2023 We still face fundamental gaps in understanding how molecular plastic changes of synapses intersect with circuit operation to define behavioral states. Here, we show that an antagonism between two conserved regulatory proteins, Spinophilin (Spn) and Syd ...
Niraja Ramesh +6 more
doaj +1 more source
Assembling the presynaptic active zone
Current Opinion in Neurobiology, 2009 Rapid neurotransmission depends on the structural and functional integrity of synaptic connections. How synapses assemble is currently being intensely investigated to help our understanding of neuronal development and synaptic plasticity. Here we focus on the assembly of the presynaptic active zone, which regulates the synaptic vesicle exo/endo-cycle ...
Owald, D, Sigrist, S
openaire +3 more sources
Two forms of asynchronous release with distinctive spatiotemporal dynamics in central synapses
eLife, 2023 Asynchronous release is a ubiquitous form of neurotransmitter release that persists for tens to hundreds of milliseconds after an action potential. How asynchronous release is organized and regulated at the synaptic active zone (AZ) remains debatable ...
Gerardo Malagon +2 more
doaj +1 more source
Ionization structure of hot components in symbiotic binaries during active phases
, 2012 During active phases of symbiotic binaries, an optically thick medium in the form of a flared disk develops around their hot stars. During quiescent phases, this structure is not evident.
Carikova, Zuzana, Skopal, Augustin
core +1 more source
A Theory on the Convective Origins of Active Longitudes on Solar-like Stars [PDF]
, 2013 Using a thin flux tube model in a rotating spherical shell of turbulent, solar-like convective flows, we find that the distribution of emerging flux tubes in our simulation is inhomogeneous in longitude, with properties similar to those of active ...
Fan, Yuhong +2 more
core +1 more source
Protein composition of axonal dopamine release sites in the striatum
eLife, 2022 Dopamine is an important modulator of cognition and movement. We recently found that evoked dopamine secretion is fast and relies on active zone-like release sites.
Lauren Kershberg +2 more
doaj +1 more source
Праці Інституту електродинаміки Національної академії наук України, 2023 The processes of creating an electromagnetic force acting on the molten metal in the active zone of a magnetodynamic pump are studied depending on the spectral composition of the higher harmonic components of the current in the channel and the induction ...
А.А. Щерба, М.О. Ломко
doaj +1 more source
A Comet Active Beyond the Crystallization Zone
, 2017 We present observations showing in-bound long-period comet C/2017 K2 (PANSTARRS) to be active at record heliocentric distance. Nucleus temperatures are too low (60 K to 70 K) either for water ice to sublimate or for amorphous ice to crystallize ...
Agarwal, Jessic +5 more
core +1 more source