Metabolomics in Chronic Kidney Diseases: Here to Stay

Covert Channels | Here to Stay? Covert Channels | Here to Stay?

We discuss the di culties of satisfying high-assurance system requirements without sacri cing system capabilities. To alleviate this problem, we show how trade-o s can be made to reduce the threat of covert channels. We also clarify certain concepts in the theory of covert channels. Traditionally, a covert channel's vulnerability was measured by the capacity. We show why a capacity analysis alo...

Surgery For Valvular Heart Diseases : Here To Stay

The first artificial heart valves to be used clinically were mechanical devices and the continuous research and development over the last 25 years led to the modern prostheses which offer simplicity and safety of implantation, haemodynamic efficiency, lower rates of thromboembolism and excellent durability. After the old Starr-Edwards ball-and-cage valve and the Björk-Shiley tilting-disk valve,...

Neurologic manifestations in children and adolescents with chronic kidney diseases

Background and Objective: Chronic renal failure (CRF) may have many effects on nervous system and manifest as headache, seizure, dialysis disequilibrium syndrome, cerebral hemorrhage, hypertensive encephalopathy, uremic neuropathy, and some neurologic complications of transplantation. In this present study we investigate neurologic disorders in children with CRF. Methods: In this descriptive...

Covert Channels - Here to Stay ?

We discuss the dificulties of satisfying high-assurance system requirements without sacrificing system capabilities. To alleviate this problem, we show how trade-offs can be made to reduce the threat of coved channels. We also clarify certain concepts in the theory of covert channels. Traditionally, a coved channel’s vulnerability was measured b y the capacity. We show why a capacity analysis a...

hpv is here to stay.