نتایج جستجو برای: nucleus fragment

تعداد نتایج: 173117  

Journal: :Physical Review C 2021

Central nucleus-nucleus collisions produce many new baryons and the nuclear clusters can be formed from these species. The phenomenological coalescence models were sufficiently good for description of light nuclei yields in a very broad range collision energies. We demonstrate that reality process considered as 1) formation primary diluted excited baryon 2) their following statistical decay lea...

Journal: :Brain research bulletin 1998
P Marcos R Coveñas J A Narvaez J A Aguirre G Tramu S Gonzalez-Baron

The distribution of seven neuropeptides was studied in the cat amygdala using an indirect immunoperoxidase technique. No labeling was found for luteinizing hormone-releasing hormone or beta-endorphin (1-27). Sparse alpha-melanocyte-stimulating hormone-immunoreactive fibers were found in the basomedial nucleus of the amygdala, whereas a low density of fibers containing alpha-neo-endorphin was ob...

2013
Beatriz Jurado

A model for the even-odd effect in fission based on statistical mechanics is presented. It reveals that the variation of the even-odd effect with the mass of the fissioning nucleus and the increase towards asymmetric splits is due to the important statistical weight of configurations where the light fission fragment populates the ground state of an eveneven nucleus. This implies that excitation...

2014
Hassan L. Fahmy Heba M saad Eldien

The hard nucleus is considered as a piece of stone, so we use high phaco energy in standard phaco to fragment it. A new technique was described in this paper for nuclear fragmentation in Phacoemulsification, which does not depend mainly on phaco energy but depends on osmotic pressure of the nucleus. The nucleus is a living tissue and has its own special anatomical and physiological rules so we ...

Journal: :Epj Web of Conferences 2021

Several physics mechanisms can lead to the deviation from an isotropic angular distribution for both fission fragments and neutrons that are emitted during event. Two of these effects have recently been implemented into CGMF , Monte Carlo event generator developed at Los Alamos National Laboratory: sampling pre-equilibrium (those before compound nucleus forms). Using new developments, we show a...

2008
K.-H. Schmidt A. Kelić M. V. Ricciardi

equilibrium processes still pose a severe challenge to their theoretical description; thus, the realistic modelling of the fission process is far from being achieved at present times. This is a particular problem at low excitation energies, where the influence of nuclear structure is responsible for individual features, which are specific for each fissionning system. Thus, it is important to st...

Journal: :Human molecular genetics 1998
J K Cooper G Schilling M F Peters W J Herring A H Sharp Z Kaminsky J Masone F A Khan M Delanoy D R Borchelt V L Dawson T M Dawson C A Ross

Huntington's disease (HD) is a progressive neurodegenerative disorder caused by an expanding CAG repeat coding for polyglutamine in the huntingtin protein. Recent data have suggested the possibility that an N-terminal fragment of huntingtin may aggregate in neurons of patients with HD, both in the cytoplasm, forming dystrophic neurites, and in the nucleus, forming intranuclear neuronal inclusio...

Journal: :Physical Review C 2021

Recent experiments [Phys. Rev. Lett. 123, 092503 (2019); Phys. 118, 222501 (2017)] have made remarkable progress in measurements of the isotopic fission-fragment yields compound nucleus $^{239}\mathrm{U}$, which is great interests for fast-neutron reactors and benchmarks fission models. We apply Bayesian neural network (BNN) approach to learn existing evaluated charge infer incomplete $^{239}\m...

2008
M. Spurio

We report the measurement of the fragmentation cross sections in high-energy nucleus-nucleus collisions using the 158 A GeV Pb82+ beam from the CERN-SPS. The fragments have charges changed from that of the incident projectile nucleus by ∆Z = ZPb − Zfrag, with 8 ≤ ∆Z < 75. The targets range from polyethylene to lead. Charge identification is made with CR39 nuclear track detectors, measured with ...

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