Following Sham and Rice [L. J. Sham, T. M. Rice, Phys. Rev. 144 (1966) 708] the correlated motion of particle-hole pairs is studied, starting from the general two-particle Greens function. In this way we derive a matrix equation for eigenvalues and wave functions, respectively, of the general type of collective excitation of a N-particle system. The interplay between excitons and plasmons is fu...

BACKGROUND Dalmatia is an interesting place to study the use of wild greens as it lies at the intersection of influence of Slavs, who do not usually use many species of wild greens, and Mediterranean culinary culture, where the use of multiple wild greens is common. The aim of the study was to document the mixtures of wild green vegetables which are sold in all the vegetable markets of Dalmatia...

Structural genomics projects are leading to the discovery of relationships between proteins that would not have been anticipated from consideration of sequence alone. However the assignment of function via structure remains difficult as some structures are compatible with a variety of functions. In this study we explore the relationships between structural diversity and functional diversity wit...

Subsurface drainage involves both intensity and capacity attributes. Intensity of subsurface drainage refers to how rapidly a root zone drains. Capacity, on the other hand, refers to the extent of excess (gravitational) water removal from the root zone. Consequently, discussions of putting green drainage often become confused since the expression improved drainage can imply improved drainage ca...

A singular integral equation for an electric dipole has been obtained, which makes it possible to take into account the finite conductivity of metal from is made. The derivation based on application Greens function free space, written in a cylindrical coordinate system, taking absence dependence field azimuthal coordinate, point source located surface dipole. Methods its solution are proposed. ...

ticenter comparison of two norovirus ORF2-based genotyping protocols.multaneous detection and identifi cation of hepatitis A virus and rotavirus by mul-tiplex nucleic acid sequence-based am-plifi cation (NASBA) and microtiter plate hybridization system. Use of norovirus genotype profi les to differentiate origins of foodborne outbreaks. Estimation of norovirus infection risks to consumers of wa...

In this paper we explore one type of commons town and village greens which are an important feature of the rural and, increasingly, the urban, English landscape. Greens are an ancient form of commons, but they are increasingly recognised as having contemporary significance, particularly because of their potential to act as a reservoir for natural resources and their enjoyment. They are, in othe...