Results 21 to 30 of about 2,090,052 (356)
The nucleus is arguably the defining characteristic of eukaryotes, distinguishing their cell organisation from both bacteria and archaea. Though the evolutionary history of the nucleus remains the subject of debate, its emergence differs from several other eukaryotic organelles in that it appears not to have evolved through symbiosis, but by cell ...
McCulloch, Richard, Navarro, Miguel
openaire +4 more sources
Exchange effects in nucleus-nucleus reactions [PDF]
We present a scattering model for nuclei with similar masses. In this three-body model, the projectile has a core+valence structure, whereas the target is identical to the core nucleus. The three-body wave functions must be symmetrized for the exchange of the cores.
J. Dohet-Eraly, P. Descouvemont
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Nucleus-Nucleus Bremsstrahlung from Ultrarelativistic Collisions [PDF]
The bremsstrahlung produced when heavy nuclei collide is estimated for central collisions at the Relativistic Heavy Ion Collider. Soft photons can be used to infer the rapidity distribution of the outgoing charge.
A. Dumitru+11 more
core +2 more sources
The LHC as a nucleus–nucleus collider [PDF]
Invited Paper at Quark Matter 2008, 20th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Jaipur, India - 4-10 February 2008; Submitted to Journal of Physics G, Nuclear Physics; 10 pages, 2 ...
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Nucleus-nucleus potentials [PDF]
Abstract The significance of a nucleus-nucleus potential is discussed. Information about such potentials obtained from scattering experiments is reviewed, including recent examples of so-called ‘rainbow’ scattering that probe the potential at smaller distances.
openaire +2 more sources
Channeling to the Nucleus [PDF]
L-type voltage-gated calcium channels (LTCs) may control neuronal gene expression by increasing nuclear Ca(2+) levels or regulating Ca(2+)/calmodulin-dependent transcription factors. In the November 3 issue of Cell, Gomez-Ospina et al. demonstrate another signaling mechanism, in which a C-terminal fragment of LTC translocates to the nucleus in a ...
Lily Yeh Jan, Hee Jung Chung
openaire +3 more sources
European Society of Cardiology (ESC) National Society Cardiovascular Journals (NSCJs) are high-quality biomedical journals focused on cardiovascular diseases. The Editors’ Network of the ESC devises editorial initiatives aimed at improving the scientific
Fernando Alfonso+6 more
doaj +1 more source
Skeletal muscles are composed of hundreds of multinucleated muscle fibers (myofibers) whose myonuclei are regularly positioned all along the myofiber’s periphery except the few ones clustered underneath the neuromuscular junction (NMJ) at the synaptic ...
Alireza Ghasemizadeh+18 more
doaj +1 more source
Nucleus-nucleus scattering in perturbative QCD with $N_c\to\infty$ [PDF]
In the perturbative QCD with $N_c\to\infty$ equations for the amplitude of the nucleus-nucleus scattering are derived by the effective field method. The asymptotic form of the solution is discussed. It is argued that in the high-energy limit the total nucleus-nucleus cross-sections become constant and purely geometrical.
arxiv +1 more source
NUR TRANSCRIPTION FACTORS IN STRESS AND ADDICTION
The Nur transcription factors Nur77 (NGFI-B, NR4A1), Nurr1 (NR4A2) and Nor-1 (NR4A3) are a sub-family of orphan members of the nuclear receptor superfamily.
Danae eCampos-Melo+9 more
doaj +1 more source