The gluonic ghost pole has been instrumental in explaining the mass of the η and providing a plausible explanation for solving the spin crisis. We show that it also plays an important role in the description of photoand electroproduction of vector mesons at low energy and high momentum transfers. We calculate the axial ghost pole contribution to φ meson electromagnetic production in a model, wh...

Among all the challenges for foreground detection, we focus on detection of ghosts caused by the starting or stopping of objects. We propose a fast and effective method for ghost detection that compares the similarity between the edges of the detected foreground objects and those of the current frame based on object-level knowledge of moving objects. Finally we demonstrate the performance of gh...

Fixed-scale speckles are used in existing ghost imaging system, while the current instrument can achieve multiscale speckles ghost imaging. This paper focuses on the research of compressed sensing ghost imaging system using multi-scale speckles. Through the computer simulation and using the four resolution scales image as the original image, restored images are obtained to analysis on a variety...

We present the theory of a supersymmetric ghost condensate coupled to N=1 supergravity. This is accomplished using a general formalism for constructing locally supersymmetric higher-derivative chiral superfield actions. The theory admits a ghost condensate vacuum in de Sitter spacetime. Expanded around this vacuum, the scalar sector of the theory is shown to be ghost-free with no spatial gradie...

background & objectives: antisense peptide nucleic acids (pna) that target growth essential genes show potent bactericidal properties without cell lysis. we considered the possibility that whether pna treatment influence the bacteria total nucleic acids content and apply approach to develop a new delivery system to dendritic cells (dcs). dcs are the most potent antigen presenting cells in t...

The BRST operator cohomology of N = 2 2d supergravity coupled to matter is presented. Descent equations for primary su-perfields of the matter sector are derived. We find one copy of the cohomology at ghost number one, two independent copies at ghost number two, and conjecture that there is a copy at ghost number three. The N = 2 string has a twisted N = 4 super-conformal symmetry generated by ...

A semi-perturbative calculation of the ghost-gluon vertex in Landau gauge YangMills theory in four and three Euclidean space-time dimensions is presented. Nonperturbative gluon and ghost propagators are employed, which have previously been calculated from a truncated set of Dyson–Schwinger equations and which are in qualitative and quantitative agreement with corresponding lattice results. Our ...

This paper proves the convergence of the ghost fluid method for second order elliptic partial differential equations with interfacial jumps. A weak formulation of the problem is first presented, which then yields the existence and uniqueness of a solution to the problem by classical methods. It is shown that the application of the ghost fluid method by Fedkiw, Kang, and Liu to this problem can ...

In this note we study the world volume theory of pairs of D-brane and ghost D-brane, which is shown to have 16 linear supersymmetries and 16 nonlinear supersymmetries. In particular we study a matrix model based on the pairs of D(−1)brane and ghost D(−1)-brane. Since such pairs are supposed to be equivalent to the closed string vacuum, we expect all 32 supersymmetries should be unbroken. We sho...

BACKGROUND AND AIM Researchers have demonstrated dead cells in radiofrequency ablation (RFA) lesions that have morphological similarities to viable tumor cells and are thus referred to as ghost cells. However, studies on how long ghost cells persist have not been systematically performed. METHODS A tumor model was established by implanting VX2 tumor tissue into the livers of 48 New Zealand ra...