Abstract. To explore the role of proteases in pathogenesis and as potential drug targets we need to elucidate their function and effect on biological networks. In this paper, we describe the application of Pathway Logic (PL) (http://pl.csl.sri.com/) to the symbolic modeling of the interaction networks of proteases of Gram-positive bacteria and the use of Pathway Logic Assistant tool to browse a...

As many as 109 neutron stars populate the Galaxy, but only ≈ 103 are directly observed as pulsars or as accreting sources in X–ray binaries. In principle also the accretion of the interstellar medium may make isolated neutron stars shine, and their weak luminosity could be detected in soft X–rays. Recent ROSAT observations have convincingly shown that neutron stars accreting from the interstell...

Microstrip antennas are widely used in a broad range of military and commercial applications due to its low cost, low profile, easy fabrication and light weight. But this kind of antenna also has some drawbacks. For example, the diffraction of surface waves at the edge of finite grounded substrate decreases the antenna efficiency and degrades the antenna pattern [1]. In the phased array antenna...

Active control of the production choke valve is the recommended solution to prevent casing-heading instability in gas-lifted oil wells. Focus of this work is to find a simple yet robust control structure for stabilization of the system. In order to find suitable control variables, a controllability analysis of the system with different candidate control variables and two alternative manipulated...

In this chapter we discuss identity development from a goal implementation perspective. Identity achievement is typically (e.g., Marcia, 1980) defined as a choke between options (e.g., "Should I become a physician or a pharmacist?"). This traditional perspective ignores the fact that identity choices have to be accompanied by implementational efforts. Accordingto self-completion theory (Wicklun...

We explore the implications of endogenous credit market imperfections for the relationship between property crime and the process of economic development. In the initial stages of development, property crime rises as the opportunities to gain from illegal activities expand. In later stages, however, crime falls as capital market imperfections are overcome and legal activities become more pro ta...