Lead (Pb) is ubiquitous in the environment, and low-level Pb exposure can cause neurotoxicity and irreversible damage to children's cognition, learning and memory ability. Nutritional intervention is an effective m...Lead (Pb) is ubiquitous in the environment, and low-level Pb exposure can cause neurotoxicity and irreversible damage to children's cognition, learning and memory ability. Nutritional intervention is an effective method to prevent Pb poisoning. Mul- berry is rich in anthocyanins, possessing protective effects for nerves. This study investigated the neuroprotective effects of mulberry extract (ME) against Pb-induced learning and memory deficits in mice. The results showed that the learning and memory abilities of mice, assessed using the Morris test, improved significantly after treatment with ME at a dose of 100 mg/kg body weight. The level of Pb in the brains of mice in the three ME intervention groups decreased significantly, while NO production and anti-oxidant enzymes were significantly restored. It is suggested that ME inhibits Pb-induced neurotoxicity by reversing Pb-induced alterations in the aspect of neurotoxic effects and improving learning and memory.展开更多
With the popularity and commercialization of cloud computing platforms, the security of virtualization technology must be guaranteed. The paper studies the protection of memory privacy under virtual platform to enhanc...With the popularity and commercialization of cloud computing platforms, the security of virtualization technology must be guaranteed. The paper studies the protection of memory privacy under virtual platform to enhance system security. Based on the monitoring of foreign mapping for Dom0, a memory privacy protection scheme is designed and implemented to prevent process memory pages in DomU being mapped illegally which might result in the leakage of secret data.展开更多
基金supported by the National Natural Science Foundation of China(No.31371733)
文摘Lead (Pb) is ubiquitous in the environment, and low-level Pb exposure can cause neurotoxicity and irreversible damage to children's cognition, learning and memory ability. Nutritional intervention is an effective method to prevent Pb poisoning. Mul- berry is rich in anthocyanins, possessing protective effects for nerves. This study investigated the neuroprotective effects of mulberry extract (ME) against Pb-induced learning and memory deficits in mice. The results showed that the learning and memory abilities of mice, assessed using the Morris test, improved significantly after treatment with ME at a dose of 100 mg/kg body weight. The level of Pb in the brains of mice in the three ME intervention groups decreased significantly, while NO production and anti-oxidant enzymes were significantly restored. It is suggested that ME inhibits Pb-induced neurotoxicity by reversing Pb-induced alterations in the aspect of neurotoxic effects and improving learning and memory.
基金Supported by the National Natural Science Foundation of China(61373169)the National High Technology Research and Development Program of China(863 Program)(2015AA016004)the Foundation of Science and Technology on Information Assure Laboratory(KJ-14-110,KJ-14-101)
文摘With the popularity and commercialization of cloud computing platforms, the security of virtualization technology must be guaranteed. The paper studies the protection of memory privacy under virtual platform to enhance system security. Based on the monitoring of foreign mapping for Dom0, a memory privacy protection scheme is designed and implemented to prevent process memory pages in DomU being mapped illegally which might result in the leakage of secret data.