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Endoscopic submucosal dissection (ESD) is gaining popularity worldwide in the treatment of neoplastic lesions of the gastrointestinal tract. However, the experience in Western countries is quite limited and restricted to large or academic centers. Besides, this approach requires an optimal pathological assessment. The aim of this study was to report our experience with colonic ESD using a new device that allows complete handling of the resected specimens and especially of lateral margins, for pathological analysis. In a 1-year period, 14 patients (6 men, 8 women, age range 50-82 years) underwent colonic ESD in a non-academic hospital. The endoscopic procedure was carried out successfully en bloc in more than 90 % of cases. Perforation requiring surgery occurred in one patient (7 %). Pathological assessment with the new device allowed entire and complete examination of both the deep and lateral margins of the excised specimens. Colonic ESD is a viable option for non-surgical treatment of large bowel lesions even in relatively small centers and in non-academic settings. The new device allows good handling of the specimens, and it seems to be useful for the entire examination of the resection margins.

This paper presents an innovative smart measurement system, as well as investigates the challenges and trends in the development of distributed Power Quality (PQ) smart measurement systems. PQ monitoring is getting importance for the customers even for the more sensitive modern equipment. Up today, the control and supervision of an industrial process has mainly been focused on the electrical protection, and little attention has been paid to the quality of the electrical supplies. Nowadays, measurement and communication systems have advanced to enable the installation of web-based sensors within a PQ assessment scenario. In this perspective, we propose a measurement instrument easy to use, chip, flexible, and with advanced world wide web capability. This paper also shows the first releases of prototypes already realised.

Adrenal extramedullary hematopoiesis may occur in association with various hematologic diseases. Its identification is invariably incidental, imaging of the lesion is poorly specific and the diagnosis requires the histological examination. We report a case of extramedullary hematopoiesis involving the right adrenal gland in a patient with hereditary spherocytosis. The literature on this entity has been reviewed and the differential with other conditions involving the adrenal gland and showing hematopoietic tissue infiltration is discussed.

A conceptual design and performance and cost estimate for a liquid-sodium- cooled central receiver solar power plant have been completed. In this design, liquid sodium transfers thermal energy from the solar receiver to the steam Rankine cycle. The sodium leaves the receiver at a temperature of 593°C (1100°F) and is conducted to the base of the tower, where it is used to generate superheated steam, or, alternately, may be stored in insulated vessels for use in preventing transients during periods of cloud cover, or to extend the plant operating period. The steam drives a 16.55 MPa/538°C/538°C (2400 psi/1000°F/1000°F) reheat turbine which produces a net electrical output of 100 MW. At full power the receiver captures 89% of the solar power incident upon it; this power is then converted to electricity at a gross efficiency of 44.5%. The cost of the first plant is estimated to be $210 million in 1978 dollars; learning curve and -iass production effects could reduce the cost of the mature design to $164 million.