The years 1895 to 1898 were momentous for their impact on health and human well beings. First, Wilhelm Roentgen noted a glowing fluorescent screen, caused by invisible rays. This event subsequently led to the discovery of X-rays in 1895, and thus the birth of the “atomic age”. Next Becquerel’s investigations of these mysterious rays led to his experiments with uranium salt crystals. He th...

Administration of nickel carbonyl to rats inhibited RNA synthesis by a chromatin-RNA polymerase complex prepared from lysed hepatic nuclei. Rats were killed 6 hr after i.v. administration of Ni(CO)4 in LDSO dosage (2.2 mg Ni/100 g body weight). The rate of RNA synthesis by the chromatinRNA polymerase complex from Ni(CO)4-treated rats averaged 0.16 (S.E. = ±0.02, N = 18) ¿/mole cytidine tripho...

â φα = αφα , with α a complex number (see next page for a discussion of â and â†). Such a state is called a “coherent state”. Coherent states turn out to be the closest quantum analog of classical states with well-defined amplitudes and phases, and are extremely important in e.g. the quantum mechanical description of laser light, radio cavities, Bose-Einstein condensates, and just about everyth...

Let A be a commutative unital C-algebra and let  denote its Gelfand spectrum. We find some necessary and sufficient conditions for a nondegenerate representation of A to be unitarily equivalent to a multiplicative representation on a space L(Â, μ), where μ is a positive measure on the Baire sets of Â. We also compare these conditions with the multiplicity-free property of a representation.

Ten phenolic compounds were isolated from a butanol fraction of sage extracts. Their structures were determined by spectral methods (NMR, MS, IR). Among them, a novel compound, 4-hydroxyacetophenone-4-O-â-D-apiofuranosyl-(1f6)-O-â-D-glucopyranoside, was identified. Two test systems, DPPH free radical scavenging activity and radical cation ABTS•+ scavenging activity, were used to evaluate their ...

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Tumor-, red marrow-, and organ-absorbed doses were calculated for patients receiving "'I-labeled monoclonal antibodies against carcinoembryonic antigen for either diagnosis or therapy. Ten patients with con firmed liver tumors who received doses ranging from 10.79 to 200 mCi were evaluated. Urine and blood samples were taken in order to determine total body and red marrow activity, respectively...

This paper presents in a unified manner mathematical properties of the second order derivatives of the overflow traffic from an Erlang loss system, assuming the number of circuits to be a nonnegative real value. It is shown that the overflow traffic function Â(a, x) is strictly convex with respect to x (number of circuits), with x ≥ 0, taking the offered traffic, a, as a positive real parameter...

/V-Nitniso-.V-methyhirea (NMU) is an effective carcinogen for the induction of mammary carcinoma in the rat. Tamoxifen (TAM), used as a chemopreventive agent to reduce tumor incidence, has been well studied using this model. We have utilized the rat mammary carcinoma model to assess the effect of TAM on preneoplastic changes. Fifty-day-old virgin female Sprague-Dawley rats were randomized by we...