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The influenza virus hemagglutinin (HA) mediates viral entry into cells by a low pH induced membrane-fusion event in endosomal vesicles. Mutant viruses with altered pH dependence for both hemolysis and the HA conformational change required for fusion were selected for their ability to grow in cells treated with amantadine hydrochloride, which raises the(More)
Due to resource constraints and unreliable communication, wireless sensor network (WSN) programming and debugging remain to be a challenging task. Runtime errors must be constantly monitored, often by checking for violations of certain invariants. Once an error is detected, diagnosis must be performed to identify the origin of the error. Deterministic(More)
The tremendous evolution in networking, communication and mobility creates greater security assurance demand than can be provided by simple security measures, such as requiring passwords to gain access to a system. Biometric technologies are being used increasingly as an effective means. The combination of biometrics and cryptography is promising although(More)
Zinc nger proteins (ZFPs) play important roles in plant responses to biotic and abiotic stresses. Through microarray analysis, an Oryza sativa L. multi-stress-responsive gene, OsMSR15, was identied and subsequently cloned from rice Pei’ai 64S (Oryza sativa L.). Expression of OsMSR15 was strongly up-regulated by cold, drought and heat stresses in different(More)
Calmodulin-like (CML) genes function in regulating plant responses to different abiotic stresses, such as high salt and drought. Using japonica type rice seedlings (‘Nipponbare’), we induced the expression of OsCML4 (Accession No. NM_001057768), which encodes a rice CML protein. Under drought conditions, transgenic plants over-expressing that gene exhibited(More)
Information security continues to be a pressing issue for industry and government. Perhaps the two most fundamental mechanisms for controlling access to information are cryptography and access control systems. This paper presents MLSvisual, a tool that helps students learn the multi-level(Bell-LaPadula) access control model. MLSvisual allows students to(More)