منابع مشابه
Birth control for giants
The standard Erdős-Renyi model of random graphs begins with n isolated vertices, and at each round a random edge is added. Parametrizing n2 rounds as one time unit, a phase transition occurs at t = 1 when a giant component (one of size constant time n) first appears. Under the influence of statistical mechanics, the investigation of related phase transitions has become an important topic in ran...
متن کاملFrailty: joining the giants.
Since Isaacs made that statement, further giants of geriatric medicine, such as iatrogenesis, have been added to the list. The concept of geriatric syndromes has been universally accepted with internationally agreed-upon definitions and numerous guidelines for assessment and treatment. The last decade has seen a burgeoning interest in yet another giant: the frailty syndrome. Frailty can be thou...
متن کامل“Giants in a Microcosm”
On examination of a breast mass surgically excised in a 69-years-old woman, a pure invasive micropapillary carcinoma (MPC) was diagnosed (Figure 1). At close examination, intensely eosinophilic syncytial-multinucleated giant cells (CD68+) percolating the stromal bands were identified (Figure 1). The breast carcinoma illustrated here shows therefore a combination of 2 rarities, namely, an invasi...
متن کاملThe Cardboard Giants
This is a record of the experiences in a mental hospital of a patient suffering (apparently) from paranoid schizophrenia. As it is stated on the cover that the patient has recovered from his illness and that he has written the book under his own name, it is very difficult to make any comment from the clinical point of view without running the risk of doing harm. He himself has recorded and disc...
متن کاملRevised Strömgren metallicity calibration for red giants
A new calibration of the Strömgren (b−y),m1 diagram in terms of iron abundance of red giants is presented. This calibration is based on a homogeneous sample of giants in the globular clusters ω Centauri, M22, and M55 as well as field giants from the list of AnthonyTwarog & Twarog (1998). Towards high metallicities, the new calibration is connected to a previous calibration by Grebel & Richtler ...
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ژورنال
عنوان ژورنال: Nature
سال: 1982
ISSN: 0028-0836,1476-4687
DOI: 10.1038/297251a0