publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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1983-01-01 | In this lecture, we will present a rigorous non-perturbative analysis of the Wilson-Kadanoff [5], [18] block spin (BS) renormalization group (RG) for the case of certain critical lattice systems of unbounded spins such as the dipole gas and the like. Our aim is to establish the asymptotic freedom (AF) of these models i... | Rigorous Renormalization Group and Asymptotic Freedom | null |
1983-01-01 | Measurements of the ac magnetic susceptibility in zero field for several insulating spin-glasses are reported. By resolving the frequency dependence of both the in-phase component X′ and the out-of-phase component X″, the dynamical behavior of these spin systems around their freezing temperatures T_f can be clearly cha... | Relaxation effects in spin glasses around the freezing temperature | null |
1983-01-01 | Numerical studies of Ising square lattices with random bonds (J_ij ^=±J or drawn from a gaussian distribution) are reviewed. Particular attention is paid to the temperature- and field dependence of the equilibrium magnetization M(H,T). While for a symmetric bond distribution the zero-field susceptibility trivially foll... | The spin glass transition: a comparison of Monte Carlo simulations of nearest-neighbor Ising Edwards-Anderson models with experiments | null |
1983-01-01 | A systematical investigation of 1s σ -ionization probabilities and δ -electron production rates in heavy ion collisions is performed. We present their charge dependence from Z_1+Z_2 = 134 up to Z_1+Z_2 = 184 and compare our results with recent experimental data. The influence of electron screening on vacancy formation ... | Spectroscopy of Superheavy Quasimolecules | null |
1983-01-01 | We show how N=8 supersymmetry can break spontaneously to N=1 at the Planck scale via a Kaluza-Klein compactification of d=11 supergravity on the squashed seven-sphere. Features unique to KaluzaKlein supergravity are (i) the massless gravitino of the N=1 phase comes from a massive N=8 supermultiplet, (ii) the scalars de... | Superunification from Eleven Dimensions | null |
1983-01-01 | Geographic variation analysis (GVA) and numerical taxonomy have become intimately related. The analysis of single variables distributed over geographic space preceded the development of modern numerical taxonomy. But with the introduction of multivariate statistical techniques into GVA, the two areas began to approach ... | Analyzing Character Variation in Geographic Space | null |
1982-12-01 | The effects of spin-labeled local anesthetics on sodium currents of internally perfused squid axons were studied using the voltage-clamp technique. Internal application (10 μ m ) of the most potent spin-labeled local anesthetic used in this study produced a small initial block of sodium currents. However, after sixty r... | Interaction of spin-labeled local anesthetics with the sodium channel of squid axon membranes | null |
1982-12-01 | [^31P] -Nuclear magnetic resonance (NMR) spin lattice relaxation times (T_1) have been measured for lecithin-nonpolar solvent-water as a function of added water for three solvents, namely, benzene, carbon tetrachloride and cyclohexane. In benzene and carbon tetrachloride systems, where spherical reverse micelles are fo... | [^31P]-Nuclear magnetic resonance spin lattice relaxation in lecithin reverse micelles | null |
1982-12-01 | Rapid solidification of metallic melts at a rate ≳10^5 °K/sec has gained considerable interest for casting non-equlibrium crystalline structures in general and metallic glasses in particular. Of the variety of techniques used for rapid solidification, melt-spinning and melt-extraction are widely used. This paper descri... | Melt-spinning technique for preparation of metallic glasses | null |
1982-11-01 | Kinetic description of collective oscillations in a system of parametric spin waves II. Inhomogeneous collective modes | null | |
1982-11-01 | A system of tensorial equations is suggested as a bipotential generalization of the Stückelberg equations written for spin-tensors. These equations describe particles having two spin states: 1/2 and 3/2 (particles with the multispin 1/2, 3/2). The Lagrangian of the theory is invariant under the transformations of the f... | Multispin particles and non-Abelian tensor gauge fields | null |
1982-11-01 | Some comments have been made on σ-models associated with noncompact groups. A noncompact variant of the continuous classical Heisenberg spin chain is proposed and its equivalence with a nonlinear Schrödinger equation of a repulsive type is established. Some regular as well as singular soliton solutions are found for th... | On σ-models with noncompact groups | null |
1982-10-01 | Lecithin-cholesterol vesicles of various compositions containing membrane-bound spin-labeled cholestane can be prepared by appropriate choice of initial concentrations of components during sonication. Increasing incorporation of spin label increases incorporation of cholesterol and decreases incorporation of lecithin, ... | Preparation and properties of spin-labeled lecithin-cholesterol liposomes | null |
1982-10-01 | In the parameter space of systems with competing interactions there are specific trajectories called order (disorder) lines. Along these trajectories the competition between the different interactions effectively reduces the dimensionality of the system and the model can be exactly solved. It is shown that the order (d... | Order and disorder lines in systems with competing interactions: I. Quantum spins atT=0 | null |
1982-09-01 | Mechanism of the elementary act of spin exchange between stable nitroxide radicals | null | |
1982-08-01 | Kinetics of spin systems with “fast” and “slow” degrees of freedom | null | |
1982-07-01 | The behavior of a neutral particle with an intrinsic magnetic moment in an axisymmetric constant magnetic field is considered. The trajectory of the particle is found and the dynamics of the spin polarization vector in this field is found. | Behavior of a neutral particle with spin in an axial magnetic field | null |
1982-07-01 | A population of Palaemonetes pugio Holthuis 1949, inhabiting a fairly constant high salinity estuarine environment (North Inlet), exhibited more rapid growth, earlier first reproduction, a smaller clutch size, more fluctuating sex ratio, and shorter life span. A population in a less saline environment (Minim Creek) sho... | Variation in life-history patterns of the grass shrimp Palaemonetes pugio in two South Carolina estuarine systems | null |
1982-06-01 | We present calculations of electromagnetic properties of^158Dy and^164Dy based on the solution of the self-consistent cranking model and approximate angular momentum projection technique developed earlier. The calculated values compare fairly well with the existing experimental data. | Electromagnetic properties of high spin states in^158Dy and^164Dy | null |
1982-06-01 | Effective spin Hamiltonian and phase separation in the almost half-filled Hubbard model and the narrow-band s-f model | null | |
1982-06-01 | The specification property for solenoidal automorphisms is discussed; a solenoidal automorphism σ satisfies specification iff σ is expansive, and σ satisfies weak specification but not specification iff σ is ergodic and central spin. These are problems set up by K. Sigmund for homeomorphisms with specification. The pro... | Solenoidal automorphisms with specifications | null |
1982-05-01 | Working in stochastic spin space and using POV measures as in the Davies and Lewis measurement scheme, we construct a formalism to describe the simultaneous measurement of incompatible spin components. The methods are illustrated with a new analysis of the Stern-Gerlach experiment, and with a discussion of spin dynamic... | On the stochastic measurement of incompatible spin components | null |
1982-05-01 | The muon spin depolarization function is calculated for different dynamical processes. Muon diffusion is shown to cause motional narrowing at high temperatures (T≫T_f=freezing temperature of the spin glass) as well as at low temperatures (T<T_f), where the static line is essentially lorentzian due to the randomness of ... | Models for μ^+ depolarization in spin glasses reflecting dynamical processes | null |
1982-05-01 | Kinetic description of collective oscillations in a system of parametric spin waves. I. Kinetic equations. Homogeneous collective modes | null | |
1982-05-01 | Dynamical response of a spin system to the sudden application of a constant magnetic field | null | |
1982-03-01 | Theory of spin waves in spin glasses | null | |
1982-03-01 | Parameters describing electron spin polarization in Hg 5 d ^10 subshell photoionization have been measured at rare-gas resonance wavelengths between 73.59 nm and 30.38 nm. The spin parameters as well as asymmetry parameters β of a recent measurement are discussed in comparison with both nonrelativistic and relativistic... | Angle- and spin-resolved photoelectron spectroscopy of the Hg 5d
^10 subshell | null |
1982-03-01 | The results of an experiment to study elastic K ^+ K ^− photoproduction are presented. Differential cross sections and spin density matrix elements for ϕ(1.019) production are stddied as a function of incident photon energy and over a wide range of momentum transfer, t ( t _ min > t >−1.5(GeV/c)^2). Helicity conserving... | A study of elastic photoproduction of low massK
^+
K
^− pairs from hydrogen in the energy range 2.8–4.8 GeV | null |
1982-03-01 | Trends in the spin combustion of thermites | null | |
1982-02-01 | The similarities between gravitational and electric forces are used as a basis for explaining the stability of the various parts of the Solar System in terms of gravitational guiding waves, or quanta. This leads to commensurability and quantisation of all orbital and spin parameters. Ultimately, the theory proves that ... | Quantisation in stable gravitational systems | null |
1982-02-01 | Following the treatment of Vega (1973), the theoretical expressions for the second moments in nuclear quadrupole resonance ( nqr ) due to dipole-dipole interactions have been derived for the system containing the nuclei with spin I =3/2. Cases with the orientation of the static magnetic field and the interactions with ... | Line shape analysis in nuclear quadrupole resonance spectroscopy (I=3/2) | null |
1982-01-01 | Structure and dynamics of transient radicals in pulse radiolysis can be studied by time resolved EPR and NMR techniques. EPR study of kinetics and relaxation is illustrated. The NMR detection of nuclear resonance in transient radicals is a new method which allows the study of hyperfine coupling, population dynamics, ra... | Structure and Dynamics of Paramagnetic Transients By Pulsed EPR and NMR Detection of Nuclear Resonance | null |
1982-01-01 | Seasonal changes in abundance, size and aspects of the population structure of Meganyctiphanes norvegica (M. Sars) and Nyctiphanes couchi (Bell) are described from samples taken with the “Continuous Plankton Recorder” at 10 m depth over a 2 yr period (1966 and 1967) in the North Atlantic Ocean and the North Sea. M. nor... | Population dynamics and production of euphausiids | null |
1982-01-01 | Beginning about 10 years ago, electron paramagnetic resonance (EPR) studies on spinlabeled lipids, pioneered by McConnell and co-workers, have helped elucidate the dynamic properties of the lipid components of both synthetic and biological membranes. While the conventional EPR technique is ideally suited to monitor the... | Saturation Transfer EPR Studies of Rotational Dynamics in Membranes | null |
1982-01-01 | In physiological conditions lipoproteins (LPs) of blood plasma transport cholesterol and essential fatty acids for the construction of smooth muscle and endothelial cells. However, disturbance of the influx and/or outflux by LPs of cholesterol leads to its accumulation in the vascular wall, and promotes development of ... | Features of Composition and Structure of High Density Lipoproteins in Disulphatlipoproteinemias According to Spin Label Electron Paramagnetic Resonance Spectroscopy Data | null |
1982-01-01 | Over the past decade there has been a revolution in magnetic resonance. At present it is possible to study a wide variety of NMR parameters of intact, live cells, tissue, and in some cases, organs or specific regions of whole bodies. These studies are possible on a time scale that is biologically reasonable. The aim of... | Magnetic Resonance Probes of Cells | null |
1982-01-01 | Gertsen, a nineteenth century Russian writer, wrote that scientists had come so close to the “shrine of nature” that they sometimes saw only what was before their very eyes. He regarded this as one of the reasons why natural phenomena were interpreted in a one-sided, individual and occasionally erroneous way. The dange... | General Biology of Vitauct and Aging | null |
1982-01-01 | Crystalline electric field (CEF) effects in f-band materials are often most dramatically evident in that class of systems where the lowest lying sublevel is a singlet. Although this ground state is necessarily non-magnetic, i.e. <1|J_z|1> = 0, mixing of this state with excited states within the Hund’s rule multiplet is... | Pressure Induced Changes in the Magnetism of Crystal Field Split Systems | null |
1982-01-01 | Stochastic mechanics may be used to described the spin of atomic particles. The spin variables have the same expectations as in quantum mechanics, but not the same distributions. They play the role of hidden variables that influence, but do not determine, the results of Stern-Gerlach experiments involving magnets. Duri... | Spin correlation in stochastic mechanics | null |
1982-01-01 | Multiple discontinuities of the moment of inertia at high spin | null | |
1982-01-01 | Massless limits and dual field theories | null | |
1982-01-01 | In 1954, Lamont Cole stated the basic tenet of life history pattern analysis and in so doing established a new branch of evolutionary ecology. According to Cole, “The total life history pattern of a species has meaning in terms of its ability to survive and ecologists should attempt to interpret these meanings.” The in... | The Evolution of Life Span | null |
1982-01-01 | The metal-nonmetal transition in ionic liquids is reviewed with special emphasis on alkali metal-alkali halide solutions and the ionic alloy Cs-Au. Magnetic measurements, especially nuclear magnetic resonance, are discussed in relation to the nature of localized electronic states at low concentrations of excess metal a... | The metal-nonmetal transition in ionic liquids | null |
1982-01-01 | Neutron inelastic scattering has been used to study the spectrum S_i(q, ω) of spin fluctuations perpendicular to a magnetic field applied in the easy plane of the one-dimensional ferromagnet CSNiF_3. It is shown that the observed central peak can be described in terms of the independent-soliton model proposed by Mikesk... | Solitons in the One-Dimensional Planar Ferromagnet CsNiF_3
| null |
1982-01-01 | In most of the electron beam experiments carried out in space so far it seems necessary to assume that some sort of a plasma discharge takes place that can provide a source for the high return currents needed to explain the neutralization of the accelerator vehicle. | Observations of Plasma Heating Effects in the Ionosphere by a Rocket Borne Electron Accelerator | null |
1982-01-01 | The technique of muon spin rotation (μSR) is described, with examples of its application in the fields of chemistry and solid state physics. It is shown how the raw experimental data contains information about the evolution of the spin polarization of muons stopped in matter. Fourier transformation provides a means of ... | Fourier Transform μSR | null |
1982-01-01 | A simple introduction to nuclear magnetic resonance in solid polymers is given. The basic theory of the n.m.r. phenomena of importance (dipole-dipole coupling, chemical shift anisotropy and magnetic relaxation) is described, and the application of these effects to polymers is illustrated by selected examples. The revie... | Nuclear Magnetic Resonance of Solid Polymers: An Introduction | null |
1982-01-01 | The status of iron as the most important and versatile metal in biological redox chemistry can be traced to a unique underlying inorganic chemistry. Essential to understanding this chemistry are the basic concepts of oxidation state, coordination number, spin state and ligand field effects. Their comprehension leads to... | Oxidation States, Redox Potentials and Spin States | null |
1982-01-01 | We discuss the new data on the shape of small planetary satellites and asteroids, comparing them with the theory of equilibrium figures for self-gravitating masses. This comparison allows to obtain interesting informations on the structure, density and strenght of these bodies. | The Shape of Small Solar System Bodies: Gravitational Equilibrium vs. Solid-State Interactions | null |
1982-01-01 | The conformation of the glycerylphosphorylcholine group of various phosphatidylcholines (PC) forming small micelles in H_2O has been studied by NMR in the absence and presence of lanthanide ions. Both in the absence and presence of lanthanides the motionally averaged polar group conformation of PC in micelles is simila... | The Conformation of the Glycerylphosphorylcholine Group in Phospholipid Forming Small Micelles | null |
1982-01-01 | The broad HI zones detected in 21-cm emission near three HII regions, NGC 281, IC 5146 and NGC 1579, are described and compared. The formation of such zones in low and medium density gas by dissociation of H_2 with UV radiation from the exciting star, is discussed. The HI spin temperatures are probably in the range 100... | Atomic Hydrogen Zones Associated with HII Regions | null |
1982-01-01 | The mean life span of the Romans was 22 years. By the end of the last century, i. e. in approximately two thousand years, the human life span increased by 20–30 years. In the last 70–80 years, it grew by another 20–30 years in the developed countries. In other words, the rate of human life prolongation increased almost... | Experimental Life Prolongation | null |
1981-12-01 | A cluster algorithm using angular correlations and leading particle effects is presented which is applicable to the study of jets produced in high energy storage ring collisions. The algorithm uses the concept of a minimal spanning tree and is computationally very efficient. Events are classified by their cluster numbe... | A cluster algorithm for the study of jets in high energy physics | null |
1981-12-01 | Use of the proton magnetic relaxation method to study experimental burns | null | |
1981-09-01 | Erikson's epigenetic stages provide a conceptual map of how a person responds to the knowledge of having a terminal illness. The patient initially reworks developmental tasks that have been resolved and then works at an accelerated pace to accomplish tasks that remain ahead. This acceleration is an attempt to attain a ... | Developmental tasks of terminally ill patients | null |
1981-08-01 | 1. The associatons and movements of 400 marked impala of known age were studied in the Sengwa Wildlife Research Area, Zimbabwe, from May 1975 to May 1978. 2. Female and juvenile impala were dispersed in a clan system. The average level of association (measured by Sorensen's index) between members of the same clan was 0... | Structure of association in impala, Aepyceros melampus
| null |
1981-08-01 | The intertidal mussels Mytilus edulis and M. californianus compete for space on the west coast of North America. An analysis of differences in size, growth rate, age at first reproduction, life span, mode of reproduction, niche and habitats between these two species demonstrates that their life history strategies are d... | The role of disturbance in the evolution of life history strategies in the intertidal mussels Mytilus edulis and Mytilus californianus
| null |
1981-07-01 | An exact dynamical renormalization approach in differential form is proposed for kinetic van der Waals spin systems with general many-body interactions. The problem of restoring covariance in the evolution equation after renormalization of the model is solved by introducing a suitable renormalized time parameter, which... | Dynamical renormalization of kinetic van der Waals spin models | null |
1981-06-01 | Salient features of transient magnetic fields are brought out from nuclear spin precession measurements on light ions penetrating polarized Fe-, Ni- and Gd-hosts. At low velocities ion fractions with single K -shell vacancies, at high velocities H-like charge state fractions, can account for the observed precessions. T... | Light nuclei as distinct probes for transient magnetic fields | null |
1981-06-01 | The basic and simplest aspects of duality are used to deduce some decay widths of J ^ P =3^−, 4^+... mesons in agreement with available data. This may be of interest when investigating the nature of these mesons and, in particular, whether they are conventional $$q\bar q$$ -systems or not. | High spin mesons and zweig-superconvergence relations | null |
1981-04-01 | Muon spin rotation study of rare earth aluminum intermetallics | null | |
1981-04-01 | The NMR frequencies of the helical texture in ^3He-A in the presence of a magnetic field parallel to the superflow are reexamined in the entire stability region. The effects of the anisotropic contribution to the spin susceptibility are explicitly included and are shown to leave previous results qualitatively unchanged... | Magnetic resonances of helical textures in ^3He-A | null |
1981-03-01 | Parity violating asymmetries in elastic electron scattering on nuclei with arbitrary spin and isospin are considered in detail, extending our previous work on this matter [1]. Examples are given for the target nuclei^12C,^40Ca,^208Pb,^3H,^3He,^41Ca,^209Bi. Several ways of extracting information on the structure of weak... | Analysis of parity-violating asymmetries in elastic electron-nucleus scattering | null |
1981-03-01 | The population structure of the endemic San Francisco Bay Area damselfly, Ischnura gemina , is examined using mark-recapture methods. Average daily movements, sex ratios, population size, maturation times, survivorship, and dispersion patterns, were recorded and calculated from two small (each less than one hectare) si... | Population structure of the rare damselfly, Ischnura gemina (Kennedy) (Odonata: Coenagrionidae) | null |
1981-02-01 | Several authors have hypothesized that completely positive maps should provide the means for generalizing quantum dynamics. In a critical analysis of that proposal, we show that such maps are incompatible with the standard phenomenological theory of spin relaxation and that the theoretical argument which has been offer... | On completely positive maps in generalized quantum dynamics | null |
1981-01-01 | There exist striking similarities between the elementary excitations of a ferromagnet and those in an elastic solid. In the latter, we know that an atom displaced from equilibrium position will oscillate with the motion and frequencies of the normal modes of the crystal. The effect of quantum mechanics on this motion i... | From Magnons to Solitons: Spin Dynamics | null |
1981-01-01 | Spin dynamics can be studied most directly by means of inelastic neutron scattering. Since spin dynamics is the essential phenomenon in 1-D magnets, where only short range order exists, results of neutron scattering experiments are of fundamental importance for the understanding of such systems. This paper reviews such... | Dynamics of One-Dimensional Magnets: Neutron Scattering Studies | null |
1981-01-01 | Edwards-Anderson models with nearest-neighbor bonds randomly chosen by a (±J,O) or gaussian distribution are studied by various methods: Monte Carlo, transfermatrix calculations, and systematic series expansions. Evidence is presented that thermal equilibrium phase transitions into spin glass phases occur at zero tempe... | Spin glass models with short-range interactions: A short review of numerical studies | null |
1981-01-01 | Muon spin depolarization in nonmagnetic metals doped with paramagnettc impurities | null | |
1981-01-01 | Spin crossover in iron(II)-complexes | null | |
1981-01-01 | Dynamical constants and other fundamental reference parameters for Mars have been derived from analyses of Viking lander ranging and Doppler tracking data covering a time span of nearly four years. Precise values have been obtained for the coordinates of the spin axis and for the rotation rate, suggesting that these Vi... | Dynamical Constants and Reference Parameters for Mars | null |
1981-01-01 | Measuring spin dependences in hadronic interactions at short distances can give us precious informations on the underlying dynamics. Coloured quarks seem to play a crucial role in our understanding of hadrons and their physical properties. Quarks carry spin and appear to participate even in the most inelastic interacti... | Spin and Flavour at Short Distances | null |
1981-01-01 | The center of mass of the Earth is commonly taken as origin for the coordinate systems used in satellite geodesy. In this paper the notion of the “geocenter” is discussed from the point of view of mechanics and geophysics. It is shown that processes in and above the crust have practically no impact on the position of t... | Origin and Scale of Coordinate Systems in Satellite Geodesy | null |
1981-01-01 | A mean-field description is given for spin glass systems without ideal classical local moments. The starting point is a moderately dilute set of Anderson model impurities, each with a finite Kondo or spin fluctuation temperature, coupled by indirect exchange. The results are consistent with a picture in which the Kondo... | Stoner and Kondo Spin Glasses | null |
1981-01-01 | The negative value of the order parameter susceptibility found in simple mean field theories of spin-glasses is related to the negative value of the kinetic coefficent of the spin response function. The zero frequency limit of the self-consistent equation for the dynamic response function has a solution which differs f... | Stabilization of the order parameter fluctuations in spin glasses | null |
1981-01-01 | A nuclear spin system inverted by dynamic nuclear polarization shows properties similar to a laser. In addition a NMR-laser in the radio frequency region can be driven by a phase- locked external RF field. Under such conditions, bistability and hysteresis typical to a first-order phase transition can be observed. Exper... | Bistability and Phase Transitions of Nuclear Spin Systems | null |
1981-01-01 | The conjugated organic polymer (CH)_X has recently been the subject of extensive interest on two counts: 1) In pristine trans -(CH)_X, EPR and NMR evidence has been given for highly mobile spin carriers that carry no charge. These have been interpreted as arising from topological solitons (a localized reversal of the b... | Polyacetylene Revisited | null |
1981-01-01 | The use and relevance of random Ginzburg-Landau functionals as a basis for spin glass modelling is discussed. | Ginzburg-Landau spin-glass models | null |
1981-01-01 | In recent years, increasing evidence indicates that cell nuclei contain a protein skeleton. The isolated ‘pendant’ to this skeleton is conveniently termed the nuclear matrix according to Berezney and Coffey (1974). It is becoming more and more accepted that the nuclear matrix is majorly responsible for the fundamental ... | The Nuclear Matrix: Modulator of Nuclear Membrane Fluidity? | null |
1981-01-01 | A persistent problem in quantum field theory is the existence of vacuum energy which is defined by $$ \theta _{\mu \nu } > = \frac{1} {{F^2 }}g_{\mu \nu } , $$ , where $$ \theta _{\mu \nu } $$ is the stress-energy tensor and F is a constant. | The Cosmological Term and Supersymmetry | null |
1981-01-01 | Models for μ^+ depolarization in spin glasses for zero external fielo | null | |
1981-01-01 | Environmental stresses result in various cellular stresses, both physical and chemical, which result in cellular lesions — injuries or changes which result in impairment or loss of either a structural or metabolic function. Characteristics which allow a plant to endure a broader thermal range are both constitutive and ... | Responses to Extreme Temperatures. Cellular and Sub-Cellular Bases | null |
1981-01-01 | Applications of unitary group (U_m) and permutation group (S_n) representations have been the subject of two conferences organized by Professor Jürgen Hinze. The proceedings of the present conference mostly emphasize applications of unitary groups, while the those of the preceeding conference (1) mostly emphasize the p... | Broken Unitary Tableaus, Itinerant Nuclear Spins, and Spontaneous Molecular Symmetry Collapse | null |
1981-01-01 | Because of their very sensitive wave and particle detectors the GEOS-1 and -2 spacecraft were well suited for a comprehensive study of wave-particle interactions leading to fast particle precipitation or heating on field, lines mainly connected with the auroral zone. Data obtained, in the ultra low frequency range (ULF... | Some Aspect of ULF Waves Observed Onboard Geos Related to Convection, Heating and Precipitation Processes | null |
1981-01-01 | At Brookhaven, Λ’s are produced polarized in p-p interactions perpendicular to a horizontal production plane defined defined by prôton × Λ̂, with their spins pointing down roughly twice as often as up, for a 1 GeV/c transverse Λ momentum. Such a large effect must indicate a simplicity in the underlying dynamics of part... | Polarization in Inclusive Production at Brookhaven | null |
1981-01-01 | Although there have been a lot of investigations of the itinerant electron magnetism based on the functional integral formalism [1], almost all the treatments employ static or classical approximation. From the sense of this approximation, applicability of these theories ought to be restricted to the high-temperature pr... | Functional Integral Approach to the Low-Temperature Properties of Itinerant Ferromagnets | null |
1981-01-01 | Over the past twelve years, the development of the Inverse Scattering Method (ISM) has provided much insight into the dynamics of certain classical nonlinear one dimensional systems [1], Within the last two years or so, the method has been applied to quantum systems by Fadeev, Sklyanin, Kulish and Takhtadzhyan [2–4] in... | The Quantum Inverse Scattering Method and Applications to Spin Chains | null |
1981-01-01 | This review will survey the status of experimental tests of the IBA including a discussion of both IBA-1 and IBA-2. Overall, to date, the IBA has enjoyed enormous success, both in individual nuclei and as a general scheme for the unified treatment of entire regions. As the number of tests of the model has grown recentl... | Status of Experimental Tests of the IBA | null |
1981-01-01 | A survey of the salient features is presented for some recent experiments on archetypal spin-glass systems. Here we include four dynamical, and mainly zero field techniques, namely the frequency dependence of the ac susceptibility, neutron scattering, muon spin rotation and relaxation, and ultrasonic propagation. We al... | The present experimental situation in spin-glasses | null |
1981-01-01 | The nonergodic behavior exhibited by the transverse spin correlation function Γ _ q =0 ^ xx ( t ) the transverse Ising model obtained as the solution of approximate kinetic equations (derived on the basis of Résibois and De Leener's method), is shown to be an intrinsic property of the model and not the result of the ap... | On the nonergodicity of the transverse magnetization in the transverse Ising model | null |
1981-01-01 | Probing spin glasses with zero-field μSR | null | |
1981-01-01 | In the past few years, the new condensed matter chemistry/- physics interface field of electronic materials having low-dimensional properties has undergone dramatic development.^1–6 The preparation of advanced new classes of organic, metal-organic, and inorganic substances with the properties of restricted dimensionali... | Cofacial Assembly of Metallomacrocycles: A Molecular Engineering Approach to Electrically Conductive Polymers | null |
1981-01-01 | The crucial details for the interpretation of spatial structures and intermolecular interactions of peptides and proteins could be revealed by proper combination of physical and chemical techniques. The paper presents the results of the combined approach for the evaluation of the conformation in solution of honey-bee v... | The Composite Physical and Chemical Approach to the Solution Spatial Structure of Polypeptide Neurotoxins | null |
1981-01-01 | Although the old quantum theory of Niels Bohr had great success in the interpretation of the line spectra of the hydrogen atom, it did not provide an adequate framework for the interpretation of the complex spectra of the many-electron atoms and molecules. Nevertheless the old theory had many clever proponents, who wit... | Many-Electron Wavefunctions | null |
1981-01-01 | The remarkable growth in the use of nuclear magnetic resonance (NMR) in chemical and biological research in recent years has depended to a great degree on the successful application of pulse methods. These have now all but supplanted traditional continuous wave (c.w.) techniques. It is perhaps surprising then to find t... | Electron Spin Echo Spectroscopy and the Study of Metalloproteins | null |
1981-01-01 | DR. HYDE: I want to review briefly three topics that in my judgment are relevant to muscular dystrophy studies and persons involved in these studies using ESR spectroscopy. These topics are: (1) the positions of rotational diffusion of membrane constituents in lipid bilayers; (.2) the behavior of oxygen in lipid bilaye... | Characteristics and Behavior of Plasma Membranes | null |
1981-01-01 | Hemoproteins are conjugated proteins which consist of one or several polypeptide chains and one or several heme groups. The heme groups are iron porphyrin complexes (Figure 1) which can be combined with the polypeptide chains through one or several covalent or coordinative bonds and through a multitude of weaker intera... | Multiple Irradiation ^1H NMR Experiments with Hemoproteins | null |
1980-12-01 | Adaptations of three larval diptera in central Africa, each inhabiting rain-filled rock pools of characteristic duration, have been studied by field observation and experiment. The duration of the pool is important in determining which of the three species is present. Large pools, lasting a few weeks after each rain, f... | Survival strategies in tropical rain pools | null |
1980-10-01 | Previous platelet studies have shown that calcium plays important roles in stimulus-secretion coupling, aggregation, and other membrane-associated functions. In addition, lanthanum induces platelet aggregation and the platelet release reaction and also influences platelet responsiveness to various stimuli. The spin-lab... | Effects of calcium, lanthanum, and temperature on the fluidity of spin-labeled human platelets | null |
1980-09-01 | An investigation of a procedure of obtaining irreversible dynamics for systems in contact with surroundings is given. | On averaging of time evolution of quantum spin lattice systems | null |
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