Poland’s security chiefs have warned for months that the country is entering a pre-war phase of hybrid pressure. The coordinated sabotage attacks on the Warsaw–Lublin line over the weekend show what ...

Truly breakthrough ideas rarely hatch overnight. Consider, for example, Charles Darwin’s theory of evolution, which had a protracted evolution of its own. Darwin spent decades reading scientific ...

Abstract: The pressure sensors capable of high sensitivity and wide measuring range at high temperature are urgently needed in many industrial fields. We propose a novel fiber-optic Fabry-Pérot ...

This price reflects trading activity during the overnight session on the Blue Ocean ATS, available 8 PM to 4 AM ET, Sunday through Thursday, when regular markets are closed. Chart does not reflect ...

Blood pressure during a heart attack can be normal, low, or high. Low blood pressure during a heart attack is a medical emergency. A heart attack can cause high blood pressure due to adrenaline and ...