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  • 1
    Electronic Resource
    Electronic Resource
    British Diabetic Association Abstracts (1968)
    Springer
    Diabetologia 4 (1968), S. 174-180 
    Details
    ISSN: 1432-0428
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01219441
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  • 2
    Electronic Resource
    Electronic Resource
    Physiological energetics of developing embryos and yolk-sac larvae of Atlantic cod (Gadus morhua). II. Lipid metabolism and enthalpy balance (1995)
    Springer
    Marine biology 124 (1995), S. 371-379 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper presents quantitative data for the changes in the contents of total lipids, lipid classes and their associated fatty acids, together with the changes in caloric contents of developing eggs and yolk-sac larvae of Atlantic cod (Gadus morhua L.). During development between Day 0 to 28 post fertilisation, 32% of catabolic metabolism was fuelled by lipids. On a mass-specific basis, polar lipids (mainly phosphatidyl choline) contributed 60%, and neutral lipids (mainly triacyl-glycerol) contributed 40% to this catabolic component, with each class supplying similar amounts of fatty acids as fuel. The fatty acids supplied by phosphatidyl choline were catabolised non-selectively (i.e. in proportion to their presence in the egg), with about half of them being polyunsaturated. However, of the fatty acids esterified in triacylglycerol, the larvae showed an apparent oxidation preference for monoenes over polyunsaturates or saturates. Routine rates of oxygen consumption and ammonia production were related to the caloric contents of the eggs and larvae in order to derive an enthalpy balance equation (of the form P=C+R+E) for an Atlantic cod larva during its period of endogenous nutrition. For the interval of Day 0 to 25 post fertilisation (the period of yolk dependence), integration of the physiological and caloric data revealed that Atlantic cod larvae conserved 53% of yolk enthalpy (C) for growth (P), 42% was dissipated due to metabolism (R) while only 5% was lost via excretion (E).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00363910
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  • 3
    Electronic Resource
    Electronic Resource
    The quasi-two-dimensional regime of fluids absorbed in porous media (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 7173-7180 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We investigate the one-body structure of fluids confined within model pores when the confinement is sufficient to force the fluid into a quasi lower-dimensional regime. The concept of the quasi-two-dimensional regime of atomic fluids confined to symmetric planar slit geometry is introduced and statistical mechanical arguments are shown to predict a universal form for the density profile; or to be more precise, to imply that the many-body contribution to the one-body structure is a particular universal function of position. Computer simulation data of Lennard-Jones fluid confined to planar slit pores are presented, which clearly illustrate the statistical mechanical prediction. Generalizations of this phenomenon to include fluid mixtures, molecular fluids and nonplanar geometries are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.457334
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  • 4
    Electronic Resource
    Electronic Resource
    Grand potential densities of wall–liquid interfaces approaching complete drying (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 5010-5014 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We present molecular dynamics computer simulation data for the pressure tensor components of planar wall–liquid interfaces, along two "orthogonal'' approaches to complete drying states. The interfacial structure varies from incipient solid-like packing, at positive adsorption, to smooth behavior, close to complete drying. We pay particular attention to the accompanying changes in the grand potential density, or to be more precise, in the transverse component of the pressure tensor of Irving and Kirkwood.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455644
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  • 5
    Electronic Resource
    Electronic Resource
    Discotic amphiphiles (2000)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 113 (2000), S. 5965-5970 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Solutions of disk-shaped molecules that self-assemble into linear aggregates pose an interesting question as to whether or not it might sometimes be appropriate to regard the solute as an amphiphile and, if so, how could the strength of this amphiphilic behavior be quantified or measured. This paper proposes an answer by mapping linear self-assembly onto the isodesmic chemical equilibria of an exactly solvable one-dimensional model. In particular, the concentration dependence of the aggregation number is seen to be dominated by one of two different regimes, depending on the presence and strength of a solvophobic solute core. The amphiphilic regime is associated with a large value of the Henry Law constant for solvating the two ends of a linear aggregate. Here, the aggregation is driven by solvent "pressure" and the aggregation number rises rapidly with increasing concentration to quickly saturate at its high concentration value. In the opposite regime, the linear self-assembly is driven by solute–solute attraction and the aggregation number displays the well-known square-root-concentration form. This analysis defines protocols for identifying and classifying discotic amphiphiles, from experimental data on any aspect of a linear aggregation distribution. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1308105
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  • 6
    Electronic Resource
    Electronic Resource
    Solvation of a solvophobic sphere (2002)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 116 (2002), S. 5039-5045 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: I consider the solvation of a hard sphere, or cavity, when the solute is bigger than the solvent molecules. I point out that scaled particle theory (SPT) is not obviously suited to this regime and thus consider the consequences of re-optimizing SPT to be accurate in the large length scale regime. The significance to hard-sphere colloidal systems is found to be minor but, in contrast, is of qualitative importance to understanding the solvation of large solvophobic solutes by Argon-like liquids at low pressure, where drying phenomena occur. The relevance to hydrophobicity in water is also discussed. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1452723
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  • 7
    Electronic Resource
    Electronic Resource
    Asymptotic decay of correlations in liquids and their mixtures (1994)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 100 (1994), S. 591-603 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We consider the asymptotic decay of structural correlations in pure fluids, fluid mixtures, and fluids subject to various types of inhomogeneity. For short ranged potentials, both the form and the amplitude of the longest range decay are determined by leading order poles in the complex Fourier transform of the bulk structure factor. Generically, for such potentials, asymptotic decay falls into two classes: (i) controlled by a single simple pole on the imaginary axis (monotonic exponential decay) and (ii) controlled by a conjugate pair of simple poles (exponentially damped oscillatory decay). General expressions are given for the decay length, the amplitude, and [in class (ii)] the wavelength and phase involved. In the case of fluid mixtures, we find that there is only one decay length and (if applicable) one oscillatory wavelength required to specify the asymptotic decay of all the component density profiles and all the partial radial distribution functions gij(r). Moreover, simple amplitude relations link the amplitudes associated with the decay of correlation of individual components. We give explicit results for the case of binary systems, expanding on and partially correcting recent work by Martynov. In addition, numerical results for g(r) for the pure fluid square-well model and for gij(r) for binary hard sphere mixtures are presented in order to illustrate the fact that the asymptotic forms remain remarkably accurate at intermediate range. This is seen to arise because the higher order poles are typically well-separated from the low order ones. We also discuss why the asymptotics of solvation forces for confined fluids and of density profiles of inhomogeneous fluids (embracing wetting phenomena) fall within the same theoretical framework. Finally, we comment on possible modifications to the theory arising from the presence of power-law attractive potentials (dispersion forces).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.466920
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  • 8
    Electronic Resource
    Electronic Resource
    Models and Simulation of Orientational Phenomena in Discotic Monolayers (1994)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 98 (1994), S. 10200-10207 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100091a040
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  • 9
    Electronic Resource
    Electronic Resource
    Liquid-state integral equations at high density: On the mathematical origin of infinite-range oscillatory solutions (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 97 (1992), S. 6750-6758 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Analytic asymptotic analysis and finite element numerical procedures are used to elucidate the mathematical reasons for the appearance of infinite-range oscillatory solutions to certain integral equation theories of wall–fluid interfacial structure and liquid state radial distribution functions. The results contribute to two issues of recent debate: (i) what physical significance (if any) can be attributed to the apparent "solidlike'' structure that is often (but not always) seen in high density solutions to liquid state integral equation theories and (ii) is the same mathematical structure present in density functional theories (i.e., in the presence of a variational condition arising from a free energy functional)?
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.463652
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  • 10
    Electronic Resource
    Electronic Resource
    Weighted density functional theories of drying at solid–fluid interfaces: Clarification of recent controversies (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 96 (1992), S. 4633-4638 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The statistical mechanics of contact angle phenomena and wetting/drying transitions at wall–fluid interfaces has benefitted from a series of recent computer simulation studies and density functional treatments. Various groups have contributed to this effort and not all of the results published to date appear to be in agreement. In particular, seemingly conflicting reports of the nature of the drying transition at model wall–liquid interfaces has generated significant confusion. Our purpose here is to clarify the situation by (i) demonstrating full consistency between two weighted density functional studies of wall–fluid interfaces, previously thought to be in conflict, and by (ii) reporting on a new density functional analysis of an earlier controversy surrounding the measurement of contact angles by computer simulation procedures involving "live'' walls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.462799
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