Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

We present an experimental concept and setup for laser-microwave double-resonance spectroscopy of highly charged ions in a Penning trap. Such spectroscopy allows a highly precise measurement of the Zeeman splittings of fine- and hyperfine-structure levels due the magnetic field of the trap. We have performed detailed calculations of the Zeeman effect in the framework of quantum electrodynamics of bound states as present in such highly charged ions. We find that apart from the linear Zeeman effect, second- and third-order Zeeman effects also contribute to the splittings on a level of 10^-4 and 10^-8, respectively, and hence are accessible to a determination within the achievable spectroscopic resolution of the ARTEMIS experiment currently in preparation

P10-10. HIV-1 Gag virus like particles pseudotyped with CD40 ligand to stimulate innate immune responses

ISSN:1742-469

Eigenvalue Distributions for a Class of Covariance Matrices with Applications to Bienenstock-Cooper-Munro Neurons Under Noisy Conditions

We analyze the effects of noise correlations in the input to, or among, BCM neurons using the Wigner semicircular law to construct random, positive-definite symmetric correlation matrices and compute their eigenvalue distributions. In the finite dimensional case, we compare our analytic results with numerical simulations and show the effects of correlations on the lifetimes of synaptic strengths in various visual environments. These correlations can be due either to correlations in the noise from the input LGN neurons, or correlations in the variability of lateral connections in a network of neurons. In particular, we find that for fixed dimensionality, a large noise variance can give rise to long lifetimes of synaptic strengths. This may be of physiological significance.Comment: 7 pages, 7 figure

Perspectives on Social Suffering in Interviews and Drawings of Palestinian Adults Crossing the Qalandia Checkpoint: A Qualitative Phenomenological Study

The current study examined the psychological experience of Palestinians who daily cross an Israel Defense Forces (IDF) checkpoint to reach their schools or places of employment. The study employed an interpretative phenomenological analysis of semi-structured interviews and drawings to capture a depth insight regarding the psychological meaning of crossing the Qalandia checkpoint on a daily basis among 20 adult participants (10 males, 10 females). Three themes emerged. The first theme described deep feelings of distress and desperation and included the categories of humiliation and dehumanization, non-existence, rage, and pessimism and helplessness. The second theme concentrated on the participants’ coping strategies of avoidance and dissociation, which usually characterize maladaptive trauma coping style, as well as exhibited aggressiveness toward their fellow community members, while the third theme described the social fragmentation of the Palestinians’ solidarity. Furthermore, three pictorial phenomena emerged from the participants’ drawings: squared restricted drawings, the use of multiple black tiny objects, and the use of split drawings. These phenomena supported and validated participants’ verbal expressions. We suggest understanding these findings in light of the term “social suffering.