High-resolution UV photoelectron spectroscopy on heavy-fermion antiferromagnet UNiA1 displays a broad triangular 5f emission spread from E F dowIl to at least 1 eV. The presence of 5f states at EF, in contrast to the low T value of 5 mJ mol1 K-2, is observed also in local-moment antiferromagnet UPdSn. The considerable degree of itinerancy is demonstrated in both cases by 4f core-level spectra. ...

Many documents are available to a computer only as images from paper. However, most natural language processing systems expect their input as character-coded text, which may be difficult or expensive to extract accurately from the page. We describe a method for converting a document image into character shape codes and word shape tokens. We believe that this representation, which is both cheap ...

Geographic Information Systems, or G.I.S., is currently a popular issue in the discipl ines of Geography and Surveying. In the late 1960s to ear ly 1980s some of the basic concepts of spat ia l data handl ing on a computer were worked out , and in the last few years these have emerged as funct ional tools for environmental, urban and regional studies. These have had immediate commercial applica...

(1966). 4. A. Carlsson and M. Lindqvist, Acta Pharmacol. Toxicol. 20, 40 (1963); H. Nyback and G. Sedvall, Eur. J. Pharmacol. 10, 193 (1970); N.-E. Anden, S. G. Butcher, H. Corrodi, K. Fuxe, U. Ungerstedt, ibid. 11, 303 (1970); H. H. Keller, G. Bartholini, A. Pletscher, ibid. 23, 183 (1973); A. Carlsson, in (1), p. 57. 5. C. D. Wise and L. Stein, Science 181, 344 (1973). 6. R. J. Wyatt, M. A. S...

(1966). 4. A. Carlsson and M. Lindqvist, Acta Pharmacol. Toxicol. 20, 40 (1963); H. Nyback and G. Sedvall, Eur. J. Pharmacol. 10, 193 (1970); N.-E. Anden, S. G. Butcher, H. Corrodi, K. Fuxe, U. Ungerstedt, ibid. 11, 303 (1970); H. H. Keller, G. Bartholini, A. Pletscher, ibid. 23, 183 (1973); A. Carlsson, in (1), p. 57. 5. C. D. Wise and L. Stein, Science 181, 344 (1973). 6. R. J. Wyatt, M. A. S...

A DNA-dependent ATPase has been highly purified from rat liver mitochondria and characterized. The enzyme catalyzes the hydrolysis of ATP or dATP in the presence of single-stranded DNA cofactor and a divalent cation. The Km values for ATP and dATP are 0.15 mM and 0.35 mM, respectively. The enzyme activity is highly sensitive to N-ethylmaleimide. The sedimentation coefficient of the enzyme is 8....

Nausea and vomiting are comrrwn side effects thut occur after chemotherapeutic drugs are given to treat cancer. Recent attention has been focused on the occurrence of nausea and vomiting in anticipation of a treatment. Prevalence data from a variety of studies show that approximately 25 70 of patients receiving chemotherapy treatments for calzcer develop anticipatory nausea and vomiting (ANY by...

Variations of the intensity of magnetization in the sediment cores from Sites 798 and 799 were examined. Closely correlated variations in the magnetic intensity enabled estimation of the relative change of the sedimentation rate between the two sites. A high sedimentation rate of more than 30 cm/1,000 yr was inferred for about 550,000 yr ago at Site 799. The sedimentation rate was used to compa...

S t a n d a r d Pet t ie r entropies for the react ions O2 + CO2 + 2 e --> C O s 2CO2 + 2 e --> CO + C O 3 in mol ten carbonate pas te e lectrolytes at 10O0~ have been de te rmined f rom thermogalvanic measurements . The resul ts are --217 and --118 J /mole~ respect ively. No dependence on e lec t ro ly te composit ion is observed. The r e vers ib le pa r t of the Pe l t i e r en t ropy for the...

The task of designing an interlingual machine translation system is difficult, first because the designer must have n knowledge of the principles underlying cross~ linguistic distinctions for the languages under consideration, and second because the designer must then be able to incorporate this knowledge effectively into the system. This paper provides a catalog of several types of distinction...