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Competitive adsorption involving phosphate and benzenecarboxylic acids on goethite-Effects of molecular structures

The competitive adsorption between phosphate and either one of seven benzenecarboxylates (benzoate, phthalate, trimellitate, trimesoate, hemimellitate, pyromellitate, and mellitate) on the surfaces of fine-particulate goethite (alpha-FeOOH) was investigated as a function of pH. The series of ligands contained Molecules with an increasing number of functional groups as well as three structural isom

Generic Ising Trees

The Ising model on a class of infinite random trees is defined as a thermodynamic limit of finite systems. A detailed description of the corresponding distribution of infinite spin configurations is given. As an application, we study the magnetization properties of such systems and prove that they exhibit no spontaneous magnetization. Furthermore, the values of the Hausdorff and spectral dimension

PACAP and its receptors in migraine pathophysiology.

Pituitary adenylate cyclase-activating peptide (PACAP) and its receptors (PAC1 , VPAC1 and VPAC2 ) are present in sensory neurons and in vascular smooth muscle related to the trigeminovascular system, a key factor in migraine pain. Recent data point to an involvement of PACAP, and in particular the PAC1 receptor, in the pathophysiology of migraine. Available data are discussed in relation to a stu

Combined treatment of relaxation and fluctuation dynamics in the calculation of two-dimensional electronic spectra.

While the theoretical description of population transfer subsequent to electronic excitation in combination with a line shape function description of vibrational dynamics in the context of 2D-spectroscopy is well-developed under the assumption of different timescales of population transfer and fluctuation dynamics, the treatment of the interplay between both kinds of processes lacks a comprehensiv

In search of the force of dependent verb second

This short communication is a brief extension of recent work on verb second in Scandinavian declarative clauses and is a contribution to research on the relation between V2 and illocutionary force. It is argued that Swedish data present a problem for the hypothesis that a bi-conditional relation holds between the illocutionary force of an assertion and the verb second word order. The relevant forc

Nuclear magnetic relaxation by the dipolar EMOR mechanism: General theory with applications to two-spin systems.

In aqueous systems with immobilized macromolecules, including biological tissue, the longitudinal spin relaxation of water protons is primarily induced by exchange-mediated orientational randomization (EMOR) of intra- and intermolecular magnetic dipole-dipole couplings. We have embarked on a systematic program to develop, from the stochastic Liouville equation, a general and rigorous theory that c