منابع مشابه
Who Blows the Whistle on Corporate Fraud
What external control mechanisms are most effective in detecting corporate fraud? To address this question we study in depth all reported cases of corporate fraud in companies with more than 750 million dollars in assets between 1996 and 2004. We find that fraud detection does not rely on one single mechanism, but on a wide range of, often improbable, actors. Only 6% of the frauds are revealed ...
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In the presence of aldosterone, plasma sodium in the high physiological range stiffens endothelial cells and reduces the release of nitric oxide. We now demonstrate effects of extracellular potassium on stiffness of individual cultured bovine aortic endothelial cells by using the tip of an atomic force microscope as a mechanical nanosensor. An acute increase of potassium in the physiological ra...
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Rupture of the small bowel with nonpenetrating abdominal trauma occurs in one-third to one-fourth of all abdominal injuries. Perforation of the bowel can result from injuries of crushing, bursting or tearing type. The symptoms are those associated with peritoneal irritation. Repeated observation and examination is necessary for diagnosis. Operative repair is mandatory. Two cases, one in a child...
متن کاملZingales Who Blows the Whistle on Corporate Fraud ?
What external control mechanisms are most effective in detecting corporate fraud? To address this question we study in depth all reported cases of corporate fraud in companies with more than 750 million dollars in assets between 1996 and 2004. We find that fraud detection does not rely on one single mechanism, but on a wide range of, often improbable, actors. Only 6% of the frauds are revealed ...
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When a volcano erupts, the geological process that results often releases devastating amounts of energy from beneath the planet’s surface through volcanic flows. such flows are classified into two categories: well-known lava flows when the eruption is effusive, and pyroclastic flows when it is explosive. Explosive eruptions, like the ancient events at Mount Vesuvius in Italy and the modern ones...
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ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/342728b0