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Comet 67P emits ancient molecular oxygen from its nucleus（图）
彗星67P 核心 分子氧
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2023/5/22
Comet 67P/Churyomov-Gerasimenko – arguably the most-studied comet in history – has yielded a cosmic surprise: It emits molecular oxygen drawn from its nucleus.
How molecular clusters in the nucleus interact with chromosomes（图）
细胞核 分子簇 染色体
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2023/6/6
A cell stores all of its genetic material in its nucleus, in the form of chromosomes, but that’s not all that’s tucked away in there. The nucleus is also home to small bodies called nucleoli — cluster...
THE LOW-FREQUENCY ELECTRIC FIELDS INDUCED IN A SPHERICAL CELL INCLUDING ITS NUCLEUS
LOW-FREQUENCY ELECTRIC FIELDS INDUCED SPHERICAL CELL NUCLEUS
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2015/10/16
After a review of work leading to the determination of the electric field induced in the human body when exposed to the electromagnetic field near an extremely-low-frequency high-voltage transmission ...
Lesions in the Central Nucleus of the Amygdala:Discriminative Avoidance Learning,Discriminative Approach Learning,and Cingulothalamic Training-Induced Neuronal Activity
amygdala cingulate cortex limbic thalamus avoidance learning approach learning discrimination
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2015/8/7
The amygdala is critically involved in discriminative avoidance learning. Large lesions of the amygdala block discriminative avoidance learning and abolish cingulothalamic training-induced neuronal ac...
Notch functions from the cytoplasm to the nucleus during T cell activation
Cytokines T cells activate cells cell signal
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2014/12/11
Notch1 specifically upregulates expression of the cytokine interferon-γ in peripheral T cells through activation of NF-κB. However, how Notch mediates NF-κB activation remains unclear. NF-κB activatio...
TRAF-interacting protein, an inhibitor of the canonical nuclear factor-kappaB pathway, plays a key role in the estradiol -dependent apoptosis of the dual-phenotype gamma amino butyric acid/glutamate neurons in the anteroventral periventricular nucleus of the male rat
Mediated estradiol LH surge neurons male AVPV E2 - mediated cell death neurons
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2014/12/11
The anteroventral periventricular nucleus (AVPV) of the preoptic area mediates the positive feedback effects of estradiol (E2) on LH surge in rats. Consistent with their role in female reproduction, t...
THE ESTRADIOL-INDUCED TRANSCRIPTOME OF THE FEMALE MOUSE ANTEROVENTRAL PERIVENTRICULAR NUCLEUS: MORE THAN JUST A KISS
Estrogen AVPV Ets2 Pdcd4 Kiss1 Ovulation
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2014/12/10
Estradiol (E2) is critical in the reproductive mechanisms of mammals. In female rodents E2 acts through the neurons of the anteroventral periventricular nucleus (AVPV) to exert neuroendocrine control ...
Improving the Entropy Estimate of Neuronal Firings of Modeled Cochlear Nucleus Neurons
Entropy Estimate Neuronal Firings Modeled Cochlear Nucleus Neurons Neurons and Cognition
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2012/5/2
In this correspondence information theoretical tools are used to investigate the statistical properties of modeled cochlear nucleus globular bushy cell spike trains. The firing patterns are obtained f...
视频：南京大学大学物理学第63讲 Atomic nucleus
南京大学 大学物理学 第63讲 Atomic nucleus 视频
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2012/4/5
视频：南京大学大学物理学第63讲 Atomic nucleus。
Detection of jet precession in the active nucleus of M81
Galaxies: Individual: M81 – galaxies: active – galaxies: jets – galaxies: nuclei – radio continuum: galaxies–radiation mechanisms: nonthermal – astrometry
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2011/9/27
(See the complete and formatted abstract in the paper). We report on VLBI monitoring of the low-luminosity AGN (LLAGN) in M81 at 1.7, 2.3, 5, and 8.4GHz. These observations are phase-referenced to the...
The nucleon axial mass and the MiniBooNE Quasielastic Neutrino-Nucleus Scattering problem
nucleon axial mass MiniBooNE Quasielastic Neutrino-Nucleus Scattering problem
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2011/7/21
The charged-current double differential neutrino cross section, measured by the MiniBooNE Collaboration, has been analyzed using a microscopical model that accounts for, among other nuclear effects, l...
Direct Photon Production in Proton-Nucleus and Nucleus-Nucleus Collisions
direct photons nuclear suppression gluon shadowing
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2011/7/21
Prompt photons produced in a hard reaction are not accompanied with any final state interaction, either energy loss or absorption. Therefore, besides the Cronin enhancement at medium transverse moment...
Low energy ω(\to π^0 γ) meson photoproduction in the nucleus
ω meson photoproduction π0γ invariant mass distribution
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2011/7/20
The $\pi^0 \gamma$ invariant mass distribution spectra in the $ (\gamma, \pi^0\gamma) $ reaction were measured by TAPS/ELSA collaboration to look for the hadron parameters of the $\omega$ meson in Nb ...
Mach-like emission from nucleon scattering in proton-nucleus reaction
nucleon scattering proton-nucleus reaction
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2011/7/20
The fast-stage nucleon emission of proton-nucleus (pA) reactions from 300A MeV to 1.8A GeV has been investigated using the quantum molecular-dynamics model.
Proton inelastic diffraction by a black nucleus and the size of excited nuclei
black nucleus Proton inelastic diffraction
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2011/7/20
We systematically derive a length scale characterizing the size of a low-lying, beta stable nucleus from empirical data for the diffraction peak angle in the proton inelastic differential cross sectio...