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—A new scheme in probabilistic packet marking (PPM) for IP traceback against denial-of-service attack is presented. Non-preemptive PPM is performed while a marked packet is coming, but compensates the reduction of marking probability in marked-free packets. The nonpreemptive compensation makes the probability of each marked packet arrived at the victim is(More)
Lower hemoglobin (Hb) levels are a common feature in the elderly. The present study recruited 180 healthy elderly men. Participants were assessed using the Geriatric Depression Scale, the Cognitive Abilities Screening Instrument Chinese version, and the Wechsler Digit Span Task test. The mean age of the participants was 85.8 years (SD = 10.5). Pearson's(More)
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