Design. The ukulele is a portable instrument with a small guitar-like body. It consists of a short neck, a main body, four strings and tuning keys, a bridge, a fretboard, and a sound hole. There are a variety of different types of ukuleles including the soprano, concert, tenor, and baritone.The most common type is the soprano ukulele which is about 21 in (53 cm) long. The strings are tuned to the notes G-C-E-A.he ukulele is a string instrument that originated in Portugal in the second century B.C. With a small, guitar-shaped body that is fitted with four strings, it is considered a member of the chordophone family.
Threshold values of NHBI. No experiment has confirmed the exact extent and duration of hypoglycemia that can cause brain injury. Animal experimental studies have suggested that when blood glucose declines from 1.36 to 0.12 mmol/L, EEG becomes smooth, predicting the start of necrotic brain injury (21). Koh et al.
Causes of hypoglycemia may include: 1  Excessive exercise, or lack of food intake. 2  Certain forms of alcohol may cause low blood sugar levels. 3  Certain kinds of tumors, affecting the pancreas (insulinomas).4  After stomach surgery. 5  People with kidney failure, who are on dialysis, may experience hypoglycemia.auses of hypoglycemia may include: 1  Excessive exercise, or lack of food intake. 2  Certain forms of alcohol may cause low blood sugar levels. 3  Certain kinds of tumors, affecting the pancreas (insulinomas). 4  After stomach surgery.