Acardiac twinning is a rare congenital anomaly of monozygotic twin pregnancy which often results from abnormal placental vascular anastomosis. It leads to twin reversal arterial perfusion with complex pathophysiology. Current information on early recognition and treatment for salvation of the normal twin is based on individual case reports in the literature. Mortality of Acardiac twin is 100%. ...

The twin-reversed arterial perfusion (TRAP) sequence is a rare complication of twin pregnancies. The anatomically normal twin is termed the pump twin; the recipient twin is malformed and is known as acardiac twin. It functions as a parasite to the pump twin and receives retrograde blood flow of poorly oxygenated blood from the pump twin via the abdominal aorta, resulting in a wide spectrum of m...

A crystallographic study using a four-circle diffractometer was carried out on a twin system observed in chalcopyrite-type AgGaS2 crystals grown by the Bridgman technique. The twin components have (112) planes in common, and coincide with each other in the direction of the atomic arrangement. The twin system is essentially a glide-twin characterized by successive glides of atomic layers paralle...

Twin to twin transfusion syndrome (TTTS) is a specific condition complicating 10-15% of monochorionic multiple pregnancy. Intertwin vascular anastomoses and transfusion is a normal event. Syndrome develops when blood flow is unbalanced. Recent studies suggest a paucity of bi-directional superficial anastomoses failing to compensate for hemodynamic imbalance resulting from unidirectional transfu...

BACKGROUND Self-harm has considerable societal and economic costs and has been extensively studied in relation to alcohol involvement. Although early onset alcohol use (EAU) has been causally linked to maladaptive clinical outcomes, its association with self-harm is less well characterized. This study aimed to further examine the link between EAU and both nonsuicidal self-injury (NSSI) and suic...