The tribological investigation was performed to seek the role of graphene nanoplatelets (GNPs) in enhancing the physico-tribological properties of mahua oil. The flashpoint, fire point, viscosity, wear preventive characteristics (WPC) and extreme pressure characteristics (EPC) were conducted following the governing standards. A substantial decrement of 17% in the coefficient of friction, 15.15% in wear scar diameter was observed upon blending the 0.25 wt.% GNPs with mahua oil. The WPC morphology on the steel balls portrayed the micro tracks. The EPC investigation presented 1 wt. % GNPs blended mahua oil with the augmented outcome of 7.7% and this was portrayed to be the best GNPs loading in weld load perspective. However, at 0.1 wt.% of GNPs loading was identified as the best loading with a wear point of view. The morphology of EPC revealed severe abrasion and steel balls were exposed to very high temperatures and have undergone metal squeeze out from the contact surface. This article also discusses the different wear regimes and corresponding wear phenomena in four-ball tribology testing with the aid of micrographs. RECEIVED

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A unique variation was noted in the Coeliac Trunk of a 65 years old male cadaver, during a routine dissection class for Under Graduate Students. In this case, the Coeliac Trunk was replaced by two separate arterial trunks. The first arterial trunk directly originated from the abdominal aorta, which was the Left Gastric Artery. The second arterial trunk was bifurcated to form the Common Hepatic Artery and the Splenic Artery (Hepatosplenic Trunk). Knowledge of such variations is important for gastroenterological surgeons and interventional radiologists, while performing major surgeries such as the Liver Transplantation. The clinical correlation and differential diagnosis of the above mentioned variation of Coeliac Trunk is discussed.