Robert K. Merton

An analysis has been made, from the data which are currently available, of the solvent content of 116 different crystal forms of globular proteins. The fraction of the crystal volume occupied by solvent is most commonly near 43 %, but has been observed...

Henri Renon, John M. Prausnitz

This chapter presents a general theoretical framework of human memory and describes the results of a number of experiments designed to test specific models that can be derived from the overall theory. This general theoretical framework categorizes the...

Although the problem of determining the minimum cost path through a graph arises naturally in a number of interesting applications, there has been no underlying theory to guide the development of efficient search procedures. Moreover, there is no adequate...

J.M. Sedlak, Raymond H. Lindsay

D. H. Hubel, Torsten N. Wiesel

Robert L. Heath, Lester Packer

An experimental technique using powders is described which permits the rapid classification of materials according to (a) magnitude of nonlinear optical coefficients relative to a crystalline quartz standard and (b) existence or absence of phase matching...

Reciprocal inhibition is a process of relearning whereby in the presence of a stimulus a non-anxiety-producing response is continually repeated until it extinguishes the old, undesirable response. A variety of the techniques based on reciprocal inhibition,...

A finite-difference method for solving the time-dependent Navier-Stokes equations for an incompressible fluid is introduced. This method uses the primitive variables, i.e. the velocities and the pressure, and is equally applicable to problems in two and...

1. The association between plaque counts in sections of cerebral cortex and measures of intellectual and personality functioning undertaken in elderly subjects during life has been studied.2. There was no evidence that degenerative changes had contributed...

J.R. Rice, G.F. Rosengren

This chapter deals with the recent developments regarding the description and nature of the conformation of proteins and polypeptides with special reference to the stereochemical aspects of the problem. This chapter considers the parameters that are required...

SUMMARY 1.Thecontrast thresholds ofavariety ofgrating patterns havebeen measured overawiderangeofspatial frequencies. 2.Contrast thresholds forthedetection ofgratings whoseluminance profiles aresine, square, rectangular orsaw-tooth wavescanbesimply related...

Allan Paivio, John C. Yuille, Stephen A. Madigan

Describes symptoms, treatments, and prevention methods for numerous diseases and parasites afflicting poultry.

Anthony V. Fiacco, Garth P. McCormick

NOTICE: Optical character-recognition software was used in preparing this document. Please consult the original article before making reference to the material herein.

In many fields using empirical areal data there arises a need for interpolating from irregularly-spaced data to produce a continuous surface. These irregularly-spaced locations, hence referred to as “data points,” may have diverse meanings: in meterology,...

The statistical characteristics of the fields and signals in the reception of radio frequencies by a moving vehicle are deduced from a scattering propagation model. The model assumes that the field incident on the receiver antenna is composed of randomly...

Evidence for the existence of a plasma lecithin : cholesterol acyltransferase is reviewed with emphasis not only on the lipid reactants, but also on the lipoprotein "substrates" and "products." The cholesteryl esters of all major lipoprotein classes become...

A method is presented to approximate optimally an n -dimensional discrete probability distribution by a product of second-order distributions, or the distribution of the first-order tree dependence. The problem is to find an optimum set of n - 1 first...

The free‐ion energy‐level schemes of the Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+ aquo ions have been determined from their absorption spectra in dilute acid solution at 25°. Energy‐level assignments were made by comparison with crystal...

Ferdinand de Saussure, Charles Bally, Albert Séchehaye, Albert Riedlinger, Tullio De Mauro

John G. Parsons, Jarnagin, J.L.Colgrove, G.S., Prodolliet, J.Bugner, E.Feinberg, M., Apostolopoulos, D.Gilbert, S.G., Silwar, R.Lullmann, C., Kung, J.T.Ryder, W.S.Feldmann, J.R., John Roboz, Nurok, D.Anderson, J.W.Zlatkis, A., Heftmann, E.Schwimmer, S., Harpaz, N.Flowers, H.M.Sharon, N., Rees, D.I.Theaker, P.D., Adomako, D.Owusu, G.K., Hurst, W.J.Martin Junior, R.A., D. Adomako, Basualdo, S.S.Dellepiane, G.E.

This paper introduces a method for the evaluation of the seismic risk at the site of an engineering project. The results are in terms of a ground motion parameter (such as peak acceleration) versus average return period. The method incorporates the influence...

The methodology, characteristics and application of the sensitive C2H2-C2H4 assay for N2 fixation by nitrogenase preparations and bacterial cultures in the laboratory and by legumes and free-living bacteria in situ is presented in this comprehensive report....

A method has been found which distinguishes between a size isomer family of proteins (e.g. bovine serum albumin polymers) and a charge isomer family of proteins (e.g. lactate dehydrogenase isoenzymes), utilizing disc gel electrophoresis. When the log...

Rat glial tumors, induced by injections of N -nitrosomethylurea, were plated and propagated in culture. Among a few cell strains obtained, one clone contains S-100 protein, which is unique to brain in vertebrates. Stationary-phase cultures contain approximately...

Publisher SummaryA great deal is known concerning the qualitative nutritional requirements of insects. The quantitative aspects of insect nutrition have, however, received less attention, and there have been few studies on the rates of intake and the...

Daniel W. Nebert, Harry V. Gelboin

A reinterpretation of the direction of effects in studies of socialization

The overall mean recognition probability (mean accuracy) of a pattern classifier is calculated and numerically plotted as a function of the pattern measurement complexity n and design data set size m . Utilized is the well-known probabilistic model of...

The CNDO method has been modified by substitution of semiempirical Coulomb integrals similar to those used in the Pariser‐Parr‐Pople method, and by the introduction of a new empirical parameter κ to differentiate resonance integrals between σ orbitals...

The general conformations of a system of three linked peptide units are studied, and it is found that there are three types of conformations which contain NH…O hydrogen bonding between the first and the third units. One of them is part of a 310-helix,...

Introduction, 33. — The definition and measurement of transaction cost on the New York stock exchange, 35. — The determination of the ask-bid spread, 40. — The determination of the transaction rate, 45. — Statistical results, 46. — Summary and...

A comprehensive study of the observations of seismology provides widely based support for the new global tectonics founded on the hypotheses of continental drift, sea-floor spreading, transform faults, and underthrusting of the lithosphere at island arcs....

In decision theory, mathematical analysis shows that once the sampling distribution, loss function, and sample are specified, the only remaining basis for a choice among different admissible decisions lies in the prior probabilities. Therefore, the logical...

In Section 1 we present a general principle for associating nonlinear equations of evolutions with linear operators so that the eigenvalues of the linear operator are integrals of the nonlinear equation. A striking instance of such a procedure is the...

A new method of exciting nonradiative surface plasma waves (SPW) on smooth surfaces, causing also a new phenomena in total reflexion, is described. Since the phase velocity of the SPW at a metal-vacuum surface is smaller than the velocity of light in...

I. Negro residential segregation, 176. — II. Segregation in Detroit and Chicago, 178. — III. The distribution of negro employment, 179. — IV. Negro employment by occupation and industry, 183. — V. The level of nonwhite employment, 189. — VI....

A theoretical study is presented on the optimization of second harmonic generation(SHG) and parametric generation (PG) by a laser beam in a uniaxial nonlinear crystal. Numerically computed curves show the dependence of the SHG power, and the reciprocal...

The rate of renaturation of fully denatured DNA is kinetically a second-order reaction. The reaction rate increases as the temperature decreases below Tm†, reaching a broad flat maximum from 15 to 30 °C below Tm and then decreases with a further decrease...

A practical method is given for solving the power flow problem with control variables such as real and reactive power and transformer ratios automatically adjusted to minimize instantaneous costs or losses. The solution is feasible with respect to constraints...

This chapter discusses the practical methods for plasma lipoprotein analysis. Changes in the concentration and sometimes in the nature of the plasma lipoproteins occur in a variety of diseases. The pioneering work of Gofman and his colleagues in the early...

This paper presents a broad investigation into the properties of steady gravity currents, in so far as they can be represented by perfect-fluid theory and simple extensions of it (like the classical theory of hydraulic jumps) that give a rudimentary account...

A method has been presented for calculating LVV from films taken in a single (A-P) plane projection. This method is based on the assumption that the LV chamber can be represented by an ellipsoid of revolution (prolate spheroid) reference figure. LV volumes...

The performances of groups of patients with left, right and bilateral frontal lesions were compared on a battery consisting of two tests presumed to be related specifically to left hemisphere function, two tests presumed to be related specifically to...

K. T. Brunner, Jacques Mauel, J C Cerottini, Chapuis B

Arnold M. Weissler, Willard S. Harris, Clyde D. Schoenfeld

One hundred female college students were administered the Harvard Group Scale of Hypnotic Susceptibility, Form A, to provide a measure of primary suggestibility. In a 2nd hr, each S was randomly assigned to one of five individual treatments of 20 Ss each....

The procedure outlined describes an extremely sensitive and accurate method for the detn. of Hg down to 1.**0** ppb. in soln. This procedure has been applied to Ni and Co metal as well as rock samples and soil samples contg. org. materials....

The structural development of the Iranian ranges has certain peculiarities which contradict the conventional geosynclinal theory of mountain building. Early orogenic movements resulted in the consolidation of the Precambrian basement and the formation...

Argues on the relationship between market concentration and competition in the United States. Basis of theories on incorrect understanding of the concept of competition of rivalry; Revelation of the validity or falsity of the relationship in the area...

Relation of pyramidal tract activity to force exerted during voluntary movement.

Trace element fractionation and the origin of tholeiitic and alkaline magma types

A general nonmetric technique for finding the smallest coordinate space for a configuration of points

Most theories in the areas of personality, clinical, and social psychology predict no more than the direction of a correlation, group difference, or treatment effect. Since the null hypothesis is never strictly true, such predictions have about a SO-SO...

We study the stability of steady nonlinear waves on the surface of an infinitely deep fluid (1, 2). In section 1, the equations of hydro- dynamics for an ideal fluid with a free surface are transformed to canonical variables: the shape of the surface...

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