Insulin oscillation oscillations. The insulin oscillations are generated by pulsatile release of the hormone from the pancreas. Insulin originates from beta cells located in the islets of Langerhans. Since each islet contains up to 2000 beta cells and there are one million islets in the pancreas it is apparent that pulsatile secretion requires sophisticated synchronization both within and among the islets of Langerhans. Pulsatile insulin secretion from individual beta cells is driven by oscillation of the calcium concentration in the cells. In beta cells lacking contact, the periodicity of these oscillations is rather variable (2-10 min). However, within an islet of Langerhans
Karataş Islets Karataş Islets Karataş Islets are two Mediterranean islets in Turkey. The islands face Karataş ilçe (district) of Adana Province at and .Their distance to Karataş is less than . The area of the western islet is about and the area of the eastern islet is about . According to the municipality of Karataş these two islets were named "Didimae" in the antiquity. Currently, the islands are uninhabited. But, the ruins around the islets show that these islets were inhabited in the antiquity. According to the researcher İsa Besiç, during the construction of some 19th-century buildings in the mainland (Anatolia) construction