Operating systems must be flexible in their support for security policies, providing sufficient mechanisms for supporting the wide variety of real-world security policies. Such flexibility requires controlling the propagation of access rights, enforcing fine-grained access rights and supporting the revocation of previously granted access rights. Previous systems are lacking in at least one of t...

Youxue Zhang Department of Geological Sciences, University of Michigan, Ann Arbor, MI 48109–1063, USA Fax: c1(734) 763 4690 e-mail: [email protected] Abstract Simulated gas-driven eruptions using CO2–water-polymer systems are reported. Eruptions are initiated by rapidly decompressing CO2–saturated water containing up to 1.0 wt.% CO2. Both cylindrical test cells and a flask test cell were used to...

BACKGROUND Shake flasks are widely used because of their low price and simple handling. Many researcher are, however, not aware of the physiological consequences of oxygen limitation and substrate overflow metabolism that occur in shake flasks. Availability of a wireless measuring system brings the possibilities for quality control and design of cultivation conditions. RESULTS Here we present...

L. Lu, G. Lee, V. Gulani, J. Sedor, K. Dell, and C. Flask Department of Radiology, Case Western Reserve University, Cleveland, OH, United States, Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States, Department of Medicine, Case Western Reserve University, Cleveland, OH, United States, Rammelkamp Renal Research Center, MetroHealth Medical Center, C...

“They are like old soldiers,” said Leo and once again I marvelled at his knack for distilling the essence in just a few words. We were sitting high up in the stadium, Leo Khachiyan, my wife Markéta, and I. Three people with a university education and not one of us had the sense to bring along a hip flask. So now we were shivering in the cold October evening while down below Mick and Keith swagg...

Introduction. A critical step for the in vitro engineering of a threedimensional tissue is to initially achieve a uniform distribution of cells seeded throughout the entire scaffold. Furthermore, if autologous cells are to be used in a clinical application, cells isolated from a small biopsy must be utilized with maximum efficiency. To overcome limitations associated with the most commonly empl...