In the blockchain network, the communication delay between different nodes is a great threat to the distributed ledger consistency of each miner.Blockchain is the core technology of Bitcoin.At present, some research has proven the security of the PoW protocol when the number of delay rounds is small, but in complex asynchronous networks, the resear
A challenge in the design of cyber-physical systems is to integrate the scheduling of tasks of different criticality, while still providing service guarantees for the higher critical tasks in the case of resource-shortages caused by faults.While standard real-time scheduling is agnostic to mpu63zm/a the criticality of tasks, the scheduling of tasks
Precise measurements of well-being would be of profound societal importance.Yet, the sceptical worry that we cannot use social science instruments and tests to measure well-being is widely discussed by philosophers and scientists.A recent and interesting philosophical argument has pointed to the psychometric procedures of construct validation to ad
Vascular cognitive impairment is a major cause of dementia caused by chronic hypoxia, producing progressive damage to white matter (WM) secondary to discount greenery blood-brain barrier (BBB) opening and vascular dysfunction.Tight junction proteins (TJPs), which maintain BBB integrity, are lost in acute ischemia.Although angiogenesis is critical f
Problems of measuring scientific and technological progress (STP) in the transition to click here the sixth technological mode have been considered.Now STP is measured mainly by natural indicators.Forecasting requires a valuation of capital, taking into account fluctuations in the interest rate at the macro level;assessment of public production eff