A formal treatment of Killing 1-form and 2-Killing on Riemannian Poisson manifold, warped product space are presented. In this way, we obtain Bochner type results compact for 1-form. Finally, give the characterization a (R2, 1,?).

The integrability conditions for the existence of a conformal Killing-Yano tensor of arbitrary order are worked out in all dimensions and expressed in terms of the Weyl tensor. As a consequence, the integrability conditions for the existence of a Killing-Yano tensor are also obtained. By means of such conditions, it is shown that in certain Einstein spaces one can use a conformal Killing-Yano t...

background: the murder is a huge human crime that in order to legislation of different laws for preventing from occurring this kind of crime (murder). anyway it occurs in all societies and it has some motivations to occur, for example economic problems, taste, madness, uncommon sexual treats, asperity, invective and insult and even love. this study has done for determining the different ways an...

We prove under mild conditions that the Fleming-Viot process selects minimal quasi-stationary distribution for Markov processes with soft killing on non-compact state spaces. Our results are applied to multi-dimensional birth and death processes, continuous time Galton-Watson diffusion killing.

We reduce the classification of all supersymmetric backgrounds of IIB supergravity to the evaluation of the Killing spinor equations and their integrability conditions, which contain the field equations, on five types of spinors. This extends the work of [hep-th/0503046] to IIB supergravity. We give the expressions of the Killing spinor equations on all five types of spinors. In this way, the K...

Background: Perforin is known to be important in cytolytic activity mediated by natural killer (NK) cells.   Objective: To study the relationship between the efficiency of NK and lymphokine-activated killer (LAK) cells activity, and the expression of perforin and HLA class I molecules.   Methods: LAK cells were generated by in vitro culturing of human peripheral blood lymphocytes (PBLs) in the ...

OBJECTIVE To study the sterilizing effect and mechanism of electrolyzed-oxidizing water (EOW) and electrolyzed-reductive water (ERW) for Bacillus subtilis var. niger (ATCC9372) and Escherichia coli (8099). METHODS The generations of EOW and ERW were made in the ion membrane electrolysis cell. The sterilization manner was the suspension quantitative germicidal test. RESULTS The killing rate ...

This study examined the mental health impact of reported direct and indirect killing among 2,797 U.S. soldiers returning from Operation Iraqi Freedom. Data were collected as part of a postdeployment screening program at a large Army medical facility. Overall, 40% of soldiers reported killing or being responsible for killing during their deployment. Even after controlling for combat exposure, ki...