نتایج جستجو برای: 1839 and 1823
تعداد نتایج: 16828344 فیلتر نتایج به سال:
Gilles CHAMPENOIS Collège Saint-André, Saint-Maur, France [email protected] ABSTRACT. Grainy numbers are defined as tuples of bits. They form a lattice where the meet and the join operations are an addition and a multiplication. They may be substituted for the real numbers in the definition of fuzzy sets. The aim is to propose an alternative negation for the complement that we’ll call ...
Reference and contact details: GB 779 RCSEd JYS 1-1884 Location: RS R1; RS R2; Plans chest Title: James Young Simpson Collection Dates of Creation: 1823-1948 Held at: The Royal College of Surgeons of Edinburgh Extent: 1884 items as at 2012. Further material in the RCSEd Museum Name of Creator: Simpson, J Y; Fergusson W; etc Language of Material: English. Some French; some Latin Level of Descrip...
The point of view of the book derives from Leopold Kronecker (1823-1891), whose views were quite consonant with those of MAP. Kronecker resisted the overthrow of the Aristotelian (and Gaussian) prohibition of completed infinites on the ground that the overthrow was unnecessary. In other words, he committed himself to doing mathematics without completed infinites, basing his work on algorithmic ...
Ozone has been known as an accompaniment to electrical storms during all the history of mankind. Its first identification as a distinct chemical compound was due to Christian Friedrich Schönbein (1) (Fig. 1), Professor of Chemistry at the University of Basel from 1828. To a considerable extent he dominated the study of ozone chemistry until his death in 1868. The molecular formula of ozone was ...
Moritz Schiff was one of the pioneers of modern experimental physiology. His involvement in the liberal movement forced him out of Germany, and, because of his adherence to proper physiological research, he had to flee Italy, his first refuge. The number and importance of his contributions are outstanding. The aim of this paper is to raise interest in his biography and to present a yet unreport...
(2) The VERITAS Collaboration–see S.P.Wakely's paper " The VERI-TAS Prototype " from these proceedings for affiliations Abstract To date three plerionic systems have been detected as emitters of very energetic photons. As part of an ongoing study of pulsar systems at the Whipple observatory, observations of the plerion PSR B1823-13 are being conducted. Observations were made with the Whipple 10...
Polylobus stigma (Erichson, 1839) is the only known species of the genus from Brazil. Here, this species is redescribed based on the type material, including illustrations of diagnostic characters. The species remains in Polylobus, but pending further revision of the genus and related genera as Tricolpochila Bernhauer, 1908 and Polylobinus Bernhauer, 1908. A commented checklist of all species i...
Samuel David Gross (1805–1884) (Fig. 1), a native of Easton, Pennsylvania, and a graduate of Jeff erson Medical College in Philadelphia, wrote his fi rst book [1] in 1828, just two years after he received his M.D. degree. Th e book, which was the fi rst American treatise on orthopedic pathology and surgery, was an instant success, but Gross’s attempt to establish a surgical practice was a failu...
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