A new way to analyze supramolecular dendritic architectures is reported by making use of (13)C NMR and (31)P NMR. Two ethylene glycol guest molecules have been synthesized containing a (13)C labeled carboxylic acid headgroup (2) and a phosphonic acid headgroup (3). The binding of these guests to urea-adamantyl modified poly(propylene imine) dendrimers has been investigated with (13)C NMR and (3...

Because of their permanent porosity and unparalleled structural diversities, flexible metal-organic frameworks (MOFs) are promising and highly desirable in host-guest chemistry. In this work, we employed a flexible Zr-MOF system, namely PCN-700 species, as the crystalline sponge for guest inclusion. A family of linear dicarboxylate ligands was adsorbed in the void space of PCN-700, which were s...

We built a virtual machine monitor for the Linksys WRT54GL wireless router to run Embedded Xinu as a guest OS within OpenWrt. The system uses a kernel module and signal handlers to support the virtualization of the guest OS. Sufficient support is provided to allow Xinu to startup, handle timer interrupts, provide I/O, and execute processes in the Xinu shell. The virtual machine performance for ...

Cobalt(iii) tetrahedral capsules have been prepared using an assembly-followed-by-oxidation protocol from a cobalt(ii) precursor and a readily derivatizable pyridyl-triazole ligand system. Experiments designed to probe the constitutional dynamics show that these architectures are in a non-equilibrium state. A preliminary investigation into the host-guest chemistry of a water-soluble derivative ...

Despite many advances in system security, rootkits remain a threat to major operating systems. First, this paper discusses why kernel integrity verification is not sufficient to counter all types of kernel rootkits and a confidentiality-violation rootkit is demonstrated to evade all integrity verifiers. Then, the paper presents, DARK, a rootkit prevention system that tracks a suspicious loadabl...

In order to host a general purpose operating system, hypervisors need to virtualize the CPU memory subsystem. This entails dynamically changing MMU resources, in particular the page tables, to allow a hosted OS to reconfigure its own memory. In this talk I present the verification of the isolation properties of a hypervisor design that uses direct paging. This virtualization approach allows to ...

the formation constants (log k), of the complexes formed between a number of amino acids(glycine , l-valine and l-alanine) with p-sulfonatocalix [4] arene at varying temperatures (25± 0.1to 65 ± 0.1 °c) in aqueous solutions and at natural ph of p-sulphonato-calix [4] arene (ph=3.2) bymeans of uv-vis spectrophotometeric technique have been investigated. at this ph the guestmolecule is in its cat...

The recent emergence of network interface cards (NICs) with diverse hardware features for I/O virtualization poses an important challenge for virtual machine environments, particularly in the area of system management. In this paper, we make the case for developing a highlevel network I/O virtualization management system that can translate user-relevant policy specifications into the hardware a...

Principal Investigators: Gerd Schön, Alexander Shnirman CFN financed scientists: Juha Leppäkangas (18 months), Jasmin Aghassi (3 months, PhD July 2007), Stefan Legel (3 months 0,75, PhD January 2008), Michael Marthaler (17 months 0,75, PhD June 2009), Anna Posazhennikova (18 months), Yasuhiro Utsumi (guest scientist + guest professor 5 months), Gergely Zarand (Bessel award 1 year + guest profes...

Decades after the birth of supramolecular chemistry, there are many techniques to measure noncovalent interactions, such as hydrogen bonding, under equilibrium conditions. As ensembles of molecules rapidly lose coherence, we cannot extrapolate bulk data to single-molecule events under non-equilibrium conditions, more relevant to the dynamics of biological systems. We present a new method that e...