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Investigation of the Effects of Leaching on the Scaling Resistance of Concrete

Damage to the concrete surface can be observed at the waterline of hydraulic structures in fresh water bodies in cold climates. Gradual deterioration of the concrete surface leads to exposure of coarse aggregate. Superficial damage at the waterline is commonly assumed to be caused by drifting ice floes. However, deterioration of concrete at the waterline may also involve leaching and frost action.

Understanding the Jus Cogens Debate: The Pervasive Influence of Legal Positivism and Legal Idealism

Although, today, jus cogens is a recognized element of international law and international legal discourse alike, many issues of vital importance to a well-functioning jus cogens regime remain unsettled. The current debate centers on the following six questions: (1) What is the source of jus cogens obligations? (2) What is the role of consent in the creation and modification of jus cogens norms? (

Sex and gender differences in newborn infants: why are boys at increased risk?

Newborn boys have higher morbidity and mortality than girls. Several studies have shown that male newborn sex is an independent risk factor for adverse outcome. The specific mechanisms leading to the increased risks for newborn boys are not known. However, several sex-specific reactions and physiologic responses have been described in both the fetus and newborn infants. Some of these differences p