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Ultra High Strength and Performance Concrete development is a relatively new industry. The last 150 years have shown that despite of a constant increasing resistance for the concrete, the practical applications were often behind to these innovations in materials science. This appears to be due to increased costs as the resistance increases per unit volume and a caution restraint to use new materials in practical applications. This paper is intended to be as an encouragement to present a practical structural applications of Ultra High Performance Concrete (BUIP) or reactive powder concrete (BPR), first developed in Romania, by using locally available materials, including waste reusing and thereby making an ecological green concrete. This concrete has a viscous consistency but a slump flow similar to the self compacting concrete (SCC), and compressive strength values exceed 150 MPa (150 ÷ 200 MPa). [ABSTRACT FROM AUTHOR]

Introduction: Duodenal atresia and stenozis represants a congenital malformation of the duodenum. Duodenal obstruction may be complete or incomplete. Duodenal atresia is an example of complete intrinsic obstruction, characterized by lack of a duodenal segment or it's transformation to a fibre cord, without structure and lumen, and clinical appears as a neonatal occlusive syndrome. Duodenal stenosis is an example of an incomplete intrinsic abnormality. The incomplete nature of the obstruction in duodenal stenosis results in a variable and often delayed presentation till the age of 10-15 years. Case presentation: A 6 weeks old femaile patient presents after 12 hours of birth with respiratory symptoms: marked nasal obstruction, abundant secretions in the posterior pharynx, tachypnea, intercostal tiraje, pulmonary with transmission rales, laryngeal stridor, rhythmic heart sounds, with systolic murmur grade III/6, bilious vomiting, multiple genetic stigmas: little an appropriated eyelid slots, retrognathia, simian crease, multiple hemangiomas. Management and findings: Plain and contrast radiography confirms the diagnosis of duodenal stenosis by revealing the classic double-bubble sign, representing air in the stomach and proximal duodenum, which is associated with complete or near-complete duodenal obstruction. The definitive management is surgical correction: duodeno-entero-anastomosis is performed. Conclusions: Postoperative evolution is good, without early postoperative complications, with a favorable prognosis, due to the lack of multiple associated anomalies and an extreme prematurity. [ABSTRACT FROM AUTHOR]