publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
|---|---|---|---|
1979-01-01 | The EPR-spectra of the C_5F_5-radical generated from C_5F_5Cl indicate pronounced anisotropy of the fluorine couplings. EPR-studies of the C_5H_5radical under various conditions yield the isotropic ^1H- and ^13C-couplings.UV excitation of the C_5H_5-radical induce a partially reversible, matrix-dependent photoreaction. | EPR Study of the Pentafluoro-Cyclopentadienyl Radical and the Cyclopentadienyl Radical | null |
1979-01-01 | The increased knowledge of the properties of membrane lipids (Ansell et al. , 1973) and of lipid-protein interactions (Singer, 1971; Lenaz, 1973, 1977; Vanderkooi, G., 1974) allows a better understanding of the role of lipids in membrane structure and functions. Nevertheless, a unifying picture of such a role is lackin... | The Role of Lipids in the Structure and Function of Membranes | null |
1979-01-01 | In this lecture I want to give a brief summary, accessible to physicists in all fields of research, of the essential role polarizations play in microscopic (that is, atomic and subatomic) physics. I will outline the essential features and illustrate them on a simple example that is familiar to everybody from studies of... | The Role of Polarization in Microscopic Physics | null |
1979-01-01 | Strong enhancement of the low frequency longitudinal susceptibility of paramagnetic solids (ELSE), caused by asymmetrical saturation of the magnetic resonance spectrum, has been theoretically predicted and experimentally studied. ELSE is due to cooling of the spin-spin interaction reservoir and can be used for direct m... | The Enhanced Longitudinal Susceptibility Effect (ELSE) and Its Application in Magnetic Resonance | null |
1979-01-01 | Once upon a time physicists believed that nucleons and pions were elementary like electrons and photons, and that Yukawa’s theory of nuclear forces was the analog of QED for strong interactions. Then the Δ (3–3 resonance) was discovered, and then the ρ and other pion resonances, and it became apparent that neither the ... | A Quasi-Nuclear Coloured Quark Model for Hadrons | null |
1979-01-01 | Some statistical models are described that have been used to study growth of fluctuations in thermodynamically unstable systems. On the bases of these models we discuss the growth of fluctuations for the cases where the order parameter is not conserved and where it is conserved (spinodal decompositions). Some relevent ... | Growth of Fluctuations in Thermodynamically Unstable Systems | null |
1979-01-01 | The dynamic properties of the ruby-raser, where r adiowave a mplification by s timulated e mission of r adiation causes a coherent, superradiant state, are discussed from the point of view of the interdisciplinary field called “Synergetics”. | The Ruby Raser: Its Nonequilibrium Phase Transition and Superradiant Selforganization | null |
1979-01-01 | Alloys containing transition metals exhibit a very wide range of magnetic behaviour. In these lectures it is necessary to narrow the field and I shall concentrate on ferromagnetic and nearlyferromagnetic alloys, particularly those containing nickel and iron. Thus I shall not discuss dilute alloys with noble metal hosts... | The Magnetic Properties of Alloys | null |
1979-01-01 | Much of my time preparing for this talk was spent trying to decide the meaning of the title. I will be cowardly and deny being its inventor or perpetrator. I hereby blame it on June Osborn, who may also deny it. My version of its history goes back to a telephone conversation with June during which time she lured me int... | Molecular Biology and Public Health | null |
1979-01-01 | Preliminary results on ULF waves in the range 0.2–11 Hz detected on board GEOS-1 are described. In this frequency domain one must consider two different categories of emissions: waves with frequencies below the proton gyrofrequency f _ci and frequencies above. Belonging to the first category are the structured ULF even... | ULF Waves Observed with Magnetic and Electric Sensors on GEOS-1 | null |
1979-01-01 | The purpose of this contribution is not to present a complete compilation of all nmr data and corresponding experimental results that have been obtained with organometallic nf^qsystems until now; it is rather intended to indicate the specific fields of activity in correlating data with distinct problems confined to the... | NMR-Spectroscopy of Organometallic Compounds of the f-Elements: Practical Applications | null |
1979-01-01 | Sensitized fluorescence has been under continuous study ever since its discovery by Wood and Cario. Accordingly, a considerable number of review articles have appeared at regular intervals. We quote the books of Mitchell and Zemanski, ^(1) Pringsheim, ^(2) and Massey and Burhop^(3) and the articles by Krause, ^(4.5) Sc... | Energy and Polarization Transfer | null |
1979-01-01 | The physical and mechanical properties of solid polymers are dependent on the molecular motions as well as the inter- and intramolecular interactions. Several methods have been useful in the study of these motions: dielectric relaxation, dynamic mechanical relaxation^(1) and nuclear magnetic resonance.^(2) Epr has also... | Polymer Studies | null |
1978-12-01 | Dynamical behavior of two-component spin systems in an alternating magnetic field | null | |
1978-12-01 | The superfluid state of fermion-antifermion fields developed in our previous papers is generalized to include higher orbital and spin states. In addition to single-particle excitations, the system is capable of having real and virtual bound or quasibound composite excitations which are akin to bosons of spin J ^P equal... | The superfluid as a source of all interactions | null |
1978-11-01 | The ESR spectrum of the nitroxide radical 2,2,6,6-tetramethylpiperidine- N -oxide (TEMPO) has been investigated in aqueous solutions of the following surfactants: n -octylammonium bromide, sodium n -octylsulfonate, n -decylammonium bromide, n -docecyltrimethylammonium bromide, and sodium n -dodecylsulfate. The spectra ... | ESR lineshapes and kinetic behavior of nitroxide spin probes in micellar solutions | null |
1978-11-01 | The structure of the disgyration in the case of a narrow capillary is found. A generalization of the Leggett-Takagi theory of NMR is performed in the case of the presence of a disgyration in the capillary. The equations of spin dynamics are solved and the frequencies and damping in the cases of longitudinal and transve... | NMR spectrum in the presence of disgyration in the superfluid a phase of ^3He | null |
1978-06-01 | Kinetic equation for spin waves in a weak alternating magnetic field | null | |
1978-03-01 | The effect of myelin basic protein from normal human central nervous system on lipid organization has been investigated by studying model membranes containing the protein by differential scanning calorimetry or electron spin resonance spectroscopy. Basic protein was found to decrease the phase transition temperature of... | Effect of basic protein from human central nervous system myelin on lipid bilayer structure | null |
1978-03-01 | World horizons | null | |
1978-03-01 | Gnathophausia ingens has 13 instars, each with a distinct range of sizes which does not overlap the sizes of adjacent instars. The intermolt interval, measured in the laboratory at 5.5°, 6.5° and 7.5°C, increases with increasing size and decreases with increasing temperature. At 5.5°C it varies from 166 days for the sm... | Growth rate of the bathypelagic crustacean Gnathophausia ingens (Mysidacea: Lophogastridae). I. Dimensional growth and population structure | null |
1978-03-01 | Encouraging diversity | null | |
1978-02-01 | We investigate the theory of longitudinal nuclear spin relaxation in the normal state of liquid ^3He when the nuclear spins of the ^3He are coupled to electronic moments in a substrate. We begin by deriving a general form for the relaxation rate in terms of spin correlation functions of the fluid and those of the spins... | Nuclear spin relaxation in normal liquid ^3He in contact with magnetic substrates | null |
1978-01-01 | Superfluid ^3He is a new phase of liquid ^3He at extremely low temperatures (below 3 mK). It consists of two distinct phases; ^3He-A and ^3He-B (although the third phase ^3He-A1 appears in the presence of magnetic fields). The phase diagram is shown in Fig.l. Superfluid ^3He arises from the pair condensation of ^3He-at... | Textures in Superfluid ^3He | null |
1978-01-01 | Resistance inequalities for the isotropic heisenberg model | null | |
1978-01-01 | Differential scanning calorimetry (DSC) currently finds wide application in studies of the thermotropic behavior of lipids in biological membranes and related systems (Chapman, 1975 a,b ; Scheidler and Steim, 1975). Almost without exception these studies have employed calorimetric equipment which is limited to very sma... | High-Sensitivity Differential Scanning Calorimetry in the Study of Biomembranes and Related Model Systems | null |
1978-01-01 | Nonlinear Klein-Gordon equations in two or more spatial dimensions of the type 1a $$\square \phi = {\text{F(}}\phi {\text{)}}$$ 1b $$\square = \frac{{{\partial ^2}}}{{\partial {t^2}}} - \left( {\frac{{{\partial ^2}}}{{\partial {x^2}}} + \frac{{{\partial ^2}}}{{\partial {y^2}}} + \frac{{{\partial ^2}}}{{\partial {z^2}}}... | The Interaction of Spin Waves in Liquid He^3 in Several Dimensions | null |
1978-01-01 | The use of neutron scattering to determine the interactions between excitations is reviewed. A brief summary is given of the use of the triple axis crystal spectrometer and of the theory of neutron scattering. The effects on the neutron scattering cross-section of a frequency dependent self-energy of an excitation, and... | Neutron Scattering and Interactions between Excitations | null |
1978-01-01 | Nuclear magnetic resonance has been used extensively in the last decade to study the structure and dynamics of model and biological membranes.^1 However, the complexity of these systems, which should manifest itself in a corresponding richness of their NMR spectra, has in most cases not been observed because of the sub... | Magic Angle Sample Spinning in Inhomogeneously Broadened Spin System—Application to Unsonicated Phospholipid Bilayers | null |
1978-01-01 | My Ph. D. thesis work was concerned with the intrinsic viscosity of a suspension of rigid spheroids with symmetry axis a_l and perpendicular axis a_2-^1-5 The most important result was the derivation of angular distribution of symmetry axis as function of axial ratio p = a_l/a_2 and dimensionless velocity gradient para... | A. Peterlin | null |
1978-01-01 | This article is largely concerned with the following problems: the solution of the double sine-Gordon equations [1,2,3] 1 $${u_{xx}} - {u_{tt}} = _ + ^ - \,\left( {\sin \,u + \frac{1}{2}\lambda \sin \frac{1}{2}u} \right)$$ for boundary conditions u,u_x,u_xx, etc. → 0, as |x| → ∞, and initial data u(x,0) = 0; u_t(x,0) =... | Creation of Spin Waves in ^3HeB | null |
1978-01-01 | The effect of the urea-class of protein denaturants on the structure of liquid water was studied. The method chosen was to monitor the microviscosity of the medium by estimating the reorientational correlation time, τ_8 and proton hyperfine linewidth, W H of an inert stable organic free radical (2, 2, 6, 4-tetramethyl-... | Effect of protein denaturants on the structure of water: Electron spin resonance spin probe study | null |
1978-01-01 | General spin correlation functions for the Ising model are reviewed and used to study the Ising model in a field. The quantum double sine-Gordon equation results. At the critical temperature this equation leads to six bound states within the magnetic gap, one at threshold, for a total of seven. It is conjectured that t... | Soliton-Bound States in the Magnetic Gap | null |
1978-01-01 | Cybernetics of learning | null | |
1978-01-01 | In this chapter, we shall consider three major topics: the evolutionary implications of the length of life, the light that genetics may throw on the nature of longevity, and the empirical evidence that there is a heritable component. It is wise to perceive at the start not only that these topics are elusive but also th... | Genetics of Longevity in Man | null |
1978-01-01 | The emergence of a psychoanalytic ego psychology secured a firm place in clinical diagnosis for the Wechsler Scales and solidified the substantial efforts already begun in exploring the nonintellective aspects of intelligence. The Wechsler Scales were well suited to the ego-psychological program to provide an integrate... | Clinical Contributions of the Wechsler Adult Intelligence Scale | null |
1977-12-01 | The dynamic critical behaviour of spin systems with quenched impurities, and of amorphous spin systems as characterized by the additional presence of random anisotropy directions, is studied by renormalization group methods to second order in ε =4− d. For the Halperin-Hohenberg-Ma model with purely relaxational dynamic... | On the critical dynamics of disordered spin systems | null |
1977-12-01 | The structures of purified rat liver and heart plasma membranes were studied with the 5-nitroxide stearic acid spin probe, I (12, 3). ESR spectra were recorded with a 50 gauss field sweep, and also with a new technique which “expands” the spectrum by (1) recording pairs of adjoining peaks with a smaller field sweep and... | Spin-label studies on rat liver and heart plasma membranes: Do probe-probe interactions interfere with the measurement of membrane properties? | null |
1977-12-01 | Several groups containing 10–15 isolated osteons differing in their degree of maturity were analysed. Samples were isolated from undecalcified human and bovine bone sections. The crystallinity coefficient, defined as the ratio of the number of radiation-induced paramagnetic defects in the crystalline lattice of hydroxy... | Initial studies on the crystallinity of the mineral fraction and ash content of isolated human and bovine osteons differing in their degree of calcification | null |
1977-10-01 | Thermodynamics and dynamics of spin systems in the phase transition to the superradiant state | null | |
1977-09-01 | A study of the hyperfine interaction in the ESR of Cu-Cu pairs in single crystals of copper diethyldithiocarbamate as a function of temperature has shown distinct differences in the hyperfine structure in the two fine structure transitions at 20 K, the spectrum not having the same hyperfine intensity pattern in the low... | ESR study of exchange coupled pairs in copper diethyldithiocarbamate—explanation of the low temperature hyperfine anomaly | null |
1977-09-01 | The antioxidant effects of ion exchange resins and ethyleneimine polymer on the autoxidation products of methyl linoleate in a heterogeneous reaction system are discussed. Results from analyses of the various autoxidation products from linoleate samples with and without the antioxidants showed that the addi-tion of the... | Ion exchange resins and ethyleneimine polymer as antioxidants II: Autoxidation products | null |
1977-07-01 | Form of free vortices of a wing of finite span | null | |
1977-07-01 | Adaptation in the small bowel after resection is associated with increases in crypt cell proliferation and villus height. This paper gives the results of an autoradiographic investigation with [^3H]thymidine of epithelial cell migration 60 days after 40% small-bowel resection in the rat. The mean number of cell positio... | Ileal epithelial cell migration after 40% small-bowel resection | null |
1977-01-01 | In a broad sense, gyrodynamics is the term used for the dynamics of rotation of rigid bodies. In a narrower sense, it is usually understood to describe the theory of the gyroscope and of the heavy symmetrical top. | Topics in Gyrodynamics | null |
1977-01-01 | The spin dynamics of a number of mixed valent materials have now been extensively studied using varied experimental probes including EPR, Raman scattering, infrared spectroscopy and inelastic neutron scattering. In this paper we review briefly photon and neutron spectroscopic studies of the ^7F_0–^7F_1 excitation dynam... | Magnetic Excitations in Mixed Valent Materials | null |
1977-01-01 | Systems undergoing structural phase transitions and describable in a pseudo-spin formalism are reviewed, with particular emphasis on spin-phonon systems, Jahn-Teller systems and order-disorder and tunnelling ferroelectrics. Models for these systems are introduced, and their static and dynamical properties developed and... | Pseudo-Spin Approach to Structural Phase Transitions | null |
1977-01-01 | It is now generally accepted that the order parameter of superfluid ^3He-A is a complex tensor $${A_{\mu i}} = {\Delta _0}{\hat d_\mu }({\hat m_i} + i{\hat n_i})$$ , where $$\hat d$$ , $$\hat m$$ and $$\hat n$$ (m) are three real unit vectors. A “texture” of ^3He-A refers to a slow spatial variation of the “orbital or ... | General Equilibrium Condition and Hydrodynamics of Superfluid ^3He-A | null |
1977-01-01 | One of the great triumphs of structural immunologists is that many of the ideas of structure and function, now verified by X-ray studies, had been proposed on the basis of chemical data. These ideas included the basic two-chain immunoglobulin structure, the location of the antigen-binding site, and the concept of domai... | Structural Studies in Solution on the Combining Site of the Myeloma Protein MOPC 315 | null |
1977-01-01 | Solitons (or planar textures) in superfluid ^3He are reviewed. In the A phase, solitons are classified into $$ \hat d $$ -soliton, $$ \hat \ell $$ -soliton and composite soliton. In an open system the last one is the only stable soliton. Creation of $$ \hat d $$ -soliton by magnetic means, and magnetic resonances assoc... | Solitons and Related Phenomena in Superfluid ^3He | null |
1977-01-01 | A microscopic model for the slow relaxation of a spin or cluster of spins in spin glasses is presented. It is shown to be related to Néel’s phenomenological theory of magnetic viscosity. The spin dynamics is governed at zero temperature by a Hamiltonian identical to Néel’s energy. Néel’s anisotropy has a microscopic or... | Slowly Relaxing Remanence and Metastability of Spin Glasses | null |
1977-01-01 | A primary task of lipid chemistry is the elucidation of the following problems of membrane biochemistry: 1. The structure and properties of membrane lipids 2. The molecular basis and the dynamics of lipid-protein binding in those structures in which their interaction has been proved. Because a detailed structural analy... | Recent Studies of Lipid-Lipid and Lipid-Protein Interactions by Physical and Chemical Methods | null |
1977-01-01 | Geometric quantization and Feynman path integrals for spin | null | |
1977-01-01 | The magnetic excitation spectrum of HoP (flopside spin structure, T_c=5.5 K) has been studied by neutron inelastic scattering. At 1.5 K five spin—wave branches have been found which are almost independent of wave vector. The results are analysed in terms of a single-ion Hamiltonian containing a crystal-field and the ef... | Ground- and Excited-State Spin Waves in Holmium Phosphide | null |
1977-01-01 | The earlier theoretical predictions of the existence of a giant Kohn anomaly in 1-d conductors (1) due to the divergent response of the electron gas at the wave vector 2k_F, and leading ultimately to a particular metal insulator Peierls transition (2), to occur at finite temperature because of the coupling between chai... | X-Ray and Neutron Scattering Investigation of the Charge Density Waves in TTF-TCNQ | null |
1977-01-01 | In this chapter we describe some of the more advanced theoretical methods, which may be usefully employed in the study of chemically-induced spin polarization and related phenomena. The emphasis will be on the finite difference methods developed by Pedersen and Freed [1-6]. | Numerical Methods and Model Dependence in Chemically-Induced Dynamic Spin Polarization | null |
1977-01-01 | There is a considerable volume of literature on the nonrelativistic three-body problem. FADDEEV has devoted an entire book to a careful treatment of the mathematical properties of his equations [1.1]. Clearly a one-chapter introduction must show a good deal of selectivity, both in material and depth of treatment. Our a... | Fundamentals of Three-Body Scattering Theory | null |
1977-01-01 | The development of electron paramagnetic resonance (EPR) spectroscopy preceded by more than a decade its application to a class of experiments referred to generally as spin-labeling . During this early period, the theoretical basis for the paramagnetic resonance spectra of numerous organic free radicals was established... | Spin-Label Studies of Membranes | null |
1977-01-01 | The adjective “cohesive” refers to those properties which depend the way the constituents of a solid are held together. The traditional division of solids in ionic, valence, molecular crystals and metals is based mainly on qualitative aspects of the cohesive properties. It is of interest and indeed also possible to mak... | Cohesive Properties of Solids | null |
1977-01-01 | The history of this subject is that GARDNER, GREENE, KRUSKAL and MIURA [34] suggested the inverse scattering scheme of solution for the KdV (22) in 1967, ZAKHAROV and SHABAT (ZS) [35] solved the NLS (24) in 1971, and WADATI and TODA [36] used the method of [34] to find the explicit solution of the KdV whilst WADATI [37... | II. Mathematical Structures | null |
1977-01-01 | The best way up to now to produce hypernuclei is the strangeness transfer from a K^- meson to a nucleon. The produced hyperon can be bound by the residual target nucleus or by a nuclear fragment and hypernuclear states of various excitations can be produced. | HYPERNUCLEI — Workshop O
| null |
1977-01-01 | A simple RPA model employing the Landau quasi-particle-quasihole interaction is used to describe the density and spin-density excitations observed in recent neutron scattering measurements on normal liquid ^3He. The model provides a good description of the excitations observed at T = 0.015 K and suggests that the scatt... | Excitations in Normal Liquid ^3He | null |
1977-01-01 | The Argonne polarized proton beam has been used together with the Effective Mass Spectrometer to study several different aspects of pp and pn interactions. The polarization asymmetry for pn elastic scattering was measured for the first time above cyclotron energies. The results show that both I = 0 and I = 1 exchanges ... | Elastic and Inelastic Polarization Effects Observed with the Argonne Effective Mass Spectrometer | null |
1976-12-01 | Die Bewegung einer Gasblase in einer rotierenden Flüssigkeit wird theoretisch und experimentell untersucht. Das System Flüssigkeit-Gas befindet sich in einer sog. Null- g -Zentrifuge. Die Versuchsanordnung besteht im wesentlichen aus zwei eng benachbarten, parallelen, ebenen Glasplatten, deren Zwischenraum mit Flüssigk... | On bubble motion in a rotating liquid under simulated low and zero gravity | null |
1976-12-01 | By the method of time differential perturbed angular distribution following a nuclear reaction, the relaxation rate T _r ^−1 of the 8 ms I ^π=10^+ isomer of^132Xe has been measured in liquid Te. Between 670 °K (supercooled liquid) and 1,000 °K the rate decreases from about 720/s by about a factor of two. From existing ... | Nuclear spin relaxation of Xe in liquid Te | null |
1976-11-01 | The function of an NMR lineshape contour for an arbitrary two-position AB exchange in systems with an AX_3 type spin coupling | null | |
1976-09-01 | The present status of the spin labeling method as applied to Biophysics is examined. After an outline of the chemical and physical properties of NO radicals, the analysis of linear and non-linear ESR spectra of spin labels and the informations it yields is described. The possibilities of the method are critically discu... | Biophysics with nitroxyl radicals | null |
1976-05-01 | Localized magnetic excitations (solitons) in superfluid ^3He are studied theoretically. In the A phase, we determine the dispersion of solitons in both the longitudinal and the transversal configurations, while in the B phase we limit ourselves to the longitudinal soliton in the Leggett configuration. In the wall pinne... | Magnetic excitations in superfluid ^3He | null |
1976-03-01 | The static and dynamical longitudinal and transverse magnetic impurity spin susceptibilities of the nondegenerate virtual bound state model are calculated as functions of temperature, magnetic field, virtual level width and for arbitrary separation of the quasibound level from the Fermi surface of an infinite structure... | The magnetic susceptibility of virtual bound state alloys | null |
1976-03-01 | 1. The thermodynamics and molecular basis of energy-linked conformational changes in the cytochrome aa _3 and ATP synthetase complexes of the mitochondrial membrane have been studied with spectrophotometrical and fluorometrical techniques. 2. Ferric cytochrome aa _3 exists in two conformations, high spin and low spin, ... | Conformational changes in cytochromeaa
_3 and ATP synthetase of the mitochondrial membrane and their role in mitochondrial energy transduction | null |
1976-03-01 | The behavior of a spin-1/2 Kondo impurity coupled to a superconducting metal by the s-d exchange interaction is analyzed. The impurity spin correlation function is expressed by the spin relaxation spectrum, which was calculated within the Tomonaga approximation, thereby taking care of the infrared singularities. The st... | Spin relaxation of a spin-1/2 Kondo impurity in a superconductor | null |
1976-01-01 | One of the important aspects of the dynamics of magnets is the sound propagation near the critical point. A number of theories have been developed for the case of ultrasonic attenuation at magnetic phase transitions (see for instance the paper by B. Luthi, T.J. Moran and R.J. Pollina [ 1 ] and references quoted there).... | Sound Absorption in Magnetics | null |
1976-01-01 | Scale transformations in dynamic models | null | |
1976-01-01 | Solar radiation pressure can cause rotational bursting and eventual elimination from the solar system of small asymmetric interplanetary particles by a windmill effect. The life span determined by this process for stony meteoritic material or tektite glass with radii of 1 cm is on the order of 10^5 years.Same size mate... | Rotational bursting of interplanetary dust particles | null |
1976-01-01 | This lecture is designed to give a brief overview of relaxation theory. We will not repeat things which you can find in readily available texts and reviews, but merely point you to them. We give as classical a picture as possible, in the belief that this is most useful for experimentalists, and in the conviction that q... | A Guide to Relaxation Theory | null |
1976-01-01 | When a particular transition in a paramagnetic impurity has been saturated, the return to thermal equilibrium with the lattice does not necessarily follow a simple exponential. Even when it does the relaxation time τ_1 so defined cannot usually be predicted by theory, one problem being to take adequate account of the l... | A Study of Spin-Phonon Interactions by Spin-Lattice Relaxation Processes | null |
1976-01-01 | One of the problems of interest to molecular and chemical physicists is the determination of two-body intermolecular potentials. In recent years, with the advent of modern high-speed computers and since the reintroduction of molecular beam techniques, good agreement has been obtained between calculated potentials and t... | Nuclear Spin Relaxation in Molecular Hydrogen | null |
1976-01-01 | The results of a pulsed nuclear magnetic resonance study of the fluoride ion motion in two single crystals of β-PbF_2, doped with 0.02% and 0.12% by weight of NaF, are reported. For F^19, we measured the transverse relaxation time T_2, the spin lattice relaxation time T_1, and the spin lattice relaxation time in the ro... | NMR Studies of F Ion Motion in Doped β-PbF_2
| null |
1976-01-01 | A kinetic theory of anisotropic Fermi superfluids is presented. The kinetic equation for the quasiparticle matrix distribution function is derived from the microscopic theory, supplemented by definitions of the relevant densities and currents. The static spin susceptibility, the normal fluid density, and the specific h... | Kinetic theory of anisotropic Fermi superfluids | null |
1976-01-01 | Statistical mechanics of equilibrium systems: Some rigorous results | null | |
1976-01-01 | The leaves of Capsicum annuum L. cv. California Wonder function as efficient carbon exporting organs for a large part of their life span. Young and old leaves export the same percentage of fixed carbon (74% within 24 hours) although fixation rates per unit area of young leaves may be three times that of old leaves. A c... | Photosynthate translocation in Capsicum annuum
| null |
1976-01-01 | It is an understatement to say that the last ten years of constructive field theory have brought about a revolution in our understanding of relativistic quantum fields. Even though the models studied so far have been super-renormalizable they have provided not only new techniques but a new conceptual framework which un... | Schwinger Functionals and Euclidean Measures | null |
1976-01-01 | All basic life processes include reactions centering on the control, transfer, storage, and utilization of two essential quantities, information and energy. This chapter, in dealing with molecular enzymology, focuses on the latter commodity and deals with the oxygenase class of enzymes which, together with the other ca... | Equilibrium States and Dynamic Reactions of Iron in the Camphor Monoxygenase System | null |
1976-01-01 | The binding of digitoxigenin to lecithin model membranes was investigated by application of electron spin- and nuclear magnetic resonance methods. A digitoxigenin spin-label derivative was found to bind specifically to the pseudohexagonal rigid lattice of lecithin membranes. The binding is accomplished by some of the s... | Interaction of digitoxigenin with lecithin membranes | null |
1976-01-01 | Complex lipids have been recognized to be closely related to the main functions of a membrane: 1. Barrier function, which is solely dependent on the lipid structure and therefore on its biophysical properties 2. Transport phenomena 3. Membrane-bound enzyme or multienzyme activity 4. Cell receptors 5. Cell-cell interact... | Carbon 13 Nmr-Spectroscopic Studies on Liposomes and Human high Density Lipoproteins | null |
1976-01-01 | The rôle of the exchange interaction in the transition to an ordered state of the spins in a magnetic crystal was first discussed by Heisenberg, Frenkel and Dorfman [ 1 ] in 1928. Two years later Bloch [ 2 ] showed that this coupling gives rise to wave excitations of the spin orientation. These spin waves, or magnons, ... | Two-Fluid Hydrodynamic Description of Magnetic Crystals | null |
1976-01-01 | The effects of spatial manipulation on eye movement when subjects either read or searched through paragraphs were examined. Adults, third, and fifth graders were presented with paragraphs which were typed normally or in alternating case (upper and lower). The spacing between the words was either normal, filled, or abse... | Eye movements while reading and searching spatially transformed text: A developmental examination | null |
1976-01-01 | Fast access sequential structures | null | |
1975-12-01 | The Generator-Coordinate-Method is applied to describe yrast-bands and excited vibrational bands of pairing-vibrational or β -vibrational type in deformed rare earth nuclei. The model wave functions are supplied by the Pairing+Quadrupole-Model with angular momentum — and particle number projection. Results are shown fo... | High spin states and pairing vibrations | null |
1975-12-01 | A study was made to understand whether there is any correlation between the physiological or morphogenetic activities of commensalic ciliates and the cycles of water propulsion of their hosts. Commonly occurring species ciliates. Boveria teredinidi, Trichodina balakrishnia, Nucleocorbula adherens, Thigmozoon fencheli a... | Some observations on the division of five species of commensalic ciliates in relation to water propulsion | null |
1975-10-01 | The investigation of stress induced chain scission by the electron spin resonance (ESR) technique has led to detailed information on number, location, and production kinetics of molecular fracture points. These data are reported here. The possible impact of these ESR results on existing statistical, mechanical, kinetic... | Molecular aspects of high polymer fracture as investigated by ESR-technique | null |
1975-03-01 | Analysis of the separation flow around a finite span thin wing | null | |
1975-03-01 | A model of local breakdown is proposed for calculating the life span of load-carrying technical-grade rubber parts, based on the thermodynamics of irreversible processes and on the entropy criterion of breakdown. The entropy hypothesis has been proved experimentally, and the numerical value of the critical specific ent... | Entropy criterion for the life span of load-carrying technical-grade rubber parts | null |
1975-01-01 | Spin labels provide sensitive probes to study the microenvironments of intermediates in membrane catalyzed reactions. The electron spin resonance (ESR) spectrum of the spin label is a function of the motion that the probe experiences and the polarity of the solvent surrounding the probe. Thus, information about the mob... | Spin-Labelled Intermediates as Targets of Antibiotic Action in Peptidoglycan Synthesis | null |
1975-01-01 | Since a pioneering NMR experiment by Osheroff et al ,^1 it has been gradually realized that the superfluid phases of liquid ^3He possess extraordinary magnetic properties. All of the extraordinary magnetic properties reflect the fact that the condensates in both the A and B phases of superfluid ^3He comprise the triple... | Spin Waves and Magnetization Oscillation in Superfluid ^3He | null |
1975-01-01 | In view of the rapidly accelerating pace of research in atmospheric kinetics, it is increasingly difficult to review a subject as large as the relevant ‘hydrogen’ chemistry. This subject may be discussed broadly in terms of the principal mechanisms which are thought to operate in planetary atmospheres, particularly in ... | Hydrogen Chemistry: Perspective on Experiment and Theory | null |
1975-01-01 | In Chapter 2, the principal constituents of biological membranes, lipids and proteins, were examined from a structural standpoint. It was noted that membrane components are, in general, amphipathic; they possess both polar and nonpolar moieties. Thermodynamic considerations lead to the conclusion that such macromolecul... | Structure of Membranes and Serum Lipoprotein Complexes | null |
1975-01-01 | In recent years, nuclear magnetic resonance spectroscopy has been applied to the study of interactions in solution with profitable results. This has been especially the case with studies of ionic hydration in electrolyte solutions where magnetic resonance and relaxation techniques have been used. In this chapter, the... | NMR Studies of Electrolyte Solutions | null |
1975-01-01 | Intramultiplet mixing and depolarization of atomic states in collisions are the simplest processes occuring in collisions of heavy particles. These processes are of interest in phenomena of redistribution of resonance radiation ^1, sensitized fluorescence ^2,3, optical pumping, and level-crossing spectroscopy ^4–7. The... | Intramultiplet Mixing and Depolarization in Atomic Collisions | null |
1975-01-01 | Neutron scattering is rapidly becoming a familiar tool used by chemists for studying the physical properties of materials. So far this use has been confined primarily to structure analysis and the study of defects using elastic scattering of neutrons in the same way as X-rays are used, the study of molecular vibrations... | The Use of Inelastic Neutron Scattering to Determine the Electronic States of Inorganic Materials | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.