An 18-year-old girl with no psychiatric history presented with abdominal pain. Four months previously she had given birth to a healthy baby. On palpation, a painful abdominal mass was identified in the epigastric region, and gastrotomy was performed. A J-shaped hair-wool ball and two large pieces of sheep's wool were removed. No history of trichotillomania was reported.

In the article is examined the liquid-drop model of electron and atom, which assumes existence of electron both in the form the ball-shaped formation and in the form liquid. This model is built on the same principles, on which was built the liquid-drop model of nucleus, proposed by Bohr and Weizsacker. The keywords: electron, the liquid-drop model of nucleus.

The system that consists of a ball bouncing off sawtooth-shaped table vibrating vertically is considered. horizontal motion in this caused by the shape, and we plotted mean velocity as function asymmetry shape. transported direction which gentler slopes face for high-bounce parameter region. To give description to net asymmetric transport, derive simplified model using assumptions high bounce p...

a 4-year-old female native goat with the history of inappetence and no defecation was referred to the department of clinical sciences, school of veterinary medicine of shiraz, shiraz, southern iran. during exploratory laparotomy, pyloric obstruction and displacement of the abomasum to the left side was observed. obstruction of pylorus was due to a ball-shaped phytobezoar. the goat was followed ...