Historical Examples. 1  From the word tranche it might be supposed that it was a relic of the Great War. 2  The 'chose vue,' the 'tranche de la vie'âthis was the thing to aim at. 3  The first tranche is available to any country, which demonstrates efforts to overcome its BOP problems. After the Rain Sam Vaknin A country can draw no more than 25% of its quota in the first tranche of a loan that it receives from the IMF.
Often, no underlying cause can be found for absence seizures. Many children appear to have a genetic predisposition to them. Rapid breathing (hyperventilation) can trigger an absence seizure. In general, seizures are caused by abnormal electrical impulses from nerve cells (neurons) in the brain. The brain's nerve cells normally send electrical and chemical signals across the synapses that connect them.
Absence (Petit-Mal) Seizures. A seizure happens when electrical activity in the brain surges suddenly. The brain and body are affected in different ways depending on where the activity occurs. During a petit-mal seizure, better known as an absence seizure, the electrical signals repeat every three seconds. This causes the person to lose awareness or consciousness for a short time, usually about 15 seconds.