Inclusive η production at high pT at the ISR

The inclusive η production cross section at the CERN ISR has been measured for p_T values of up to 11 GeV/c. We find that the $\text{η}\text{π}{}^0$ cross-section ratio has an average value of 0.55 ± 0.07 and varies little with p_T.     

Study of the I=2 ππ scattering from the reaction π−d → π−π−psp at 9.0 GeV/c

We have studied the I=2, ππ scattering using the classical Chew-Low extrapolation method. Results are given on the cross sections and the phase shifts δ₀², δ₂² and δ₄² up to 2.2. GeV. δ₀² values are -7.8 ? 3.0° at the K^o mass, -15. ? 1.5° at the ? mass and -29. ? 2.2° of the f^o mass. Above the f^o mass |δ₀²| decreases.     

Preferred electron-impact elimination of two CHO groups from A triapentafulvalenequinone. Formation of a triafulvalene radical cation?

The mass spectral fragmentations of 1,2-diphenyl- and 1,2-di (phenyl-d₅)-4,5-benzotriapentafulvalene-3,6-quinone indicate the preferred elimination of two CHO groups with the formation of triafulvalene radical cations.     

Microprocessor ratemeter for kinetic determinations

A simple, compact, easy-to-implement microprocessor ratemeter for kinetic determinations based on initial rate, fixed time, and variable time is presented. The hardware and software are such that the ratemeter can be used with almost any transducer or instrument to monitor reactions in a wide variety of chemical systems. The performance of the ratemeter is demonstrated by its application to the determination of phosphorus by stoppedflow spectrometry, glucose by amperometry, and alkaline phosphatase activity in control sera by visible spectrophotometry.     

1H and 13C n.m.r. study of butatriene-bis-tricarbonyliron complexes. Assignment of geometric orientation by comparative J(CCCH) values

A number of substituted butatriene-bis-tricarbonyliron complexes have been studied by ¹³C and ¹H n.m.r. spectroscopy. Long range coupling values, J(CCCH), have confirmed chemical shift results that methyl and phenyl groups assume opposite orientations at the coordinated double bonds with the methyl group preferentially trans to carbon and the phenyl group preferentially trans to iron.     

Synthesis of novel neuroexcitatory amino acids derived from kainic acid

The synthesis of the novel epimeric amino acids $\text{5a}$ and $\text{7a}$ by oxidation of methyl ketones derived from kainic acid is described. On biological testing both compounds exhibit a strong neuroexcitatory activity.     

A better step-off algorithm for the knapsack problem

The knapsack problem, maximize Σ^m_{i = 1}c_ix_i when Σ^m_{i = 1}a_ix_i?b for integers x_i?0, can be solved by the classical step-off algorithm. The algorithm develops a series of feasible solutions with ever-increasing objective values. We make a change in the problem so that the step-off algorithm produces a series of solutions of not necessarily increasing objective values. A point is reached when no better solutions can be found and the calculation is stopped.