The Dutch Triple Heritage Helix. A working model for the protection of the landscape

In the Netherlands the state does not take direct responsibility for the care of archaeological monuments. Instead, the emphasis is on supporting private owners to look after monuments in their care. This article focuses on the range of non-governmental trust organisations that have been established to care for built heritage in the Netherlands. One such organisation is the Utrechts Landschap Foundation, established in 1927, which has recently championed what can be termed a 'triple heritage helix' to describe the role played by the foundation, public government and civil society. In this triple heritage helix model, all three partners have a role, but Utrechts Landschap is the central, lead partner that provides the long-term vision, skills and administration to ensure that the heritage sites under the trust's care are managed and protected effectively.

Energy Dependent Chemical Potentials of Light Particles and Quarks from Yield Ratios of Antiparticles to Particles in High Energy Collisions

We collect the yields of charged pions ( π − and π + ), charged kaons ( K − and K + ), anti-protons ( p ¯ ), and protons (p) produced in mid-rapidity interval (in most cases) in central gold–gold (Au–Au), central lead–lead (Pb–Pb), and inelastic or non-single-diffractive proton–proton ( p p ) collisions at different collision energies. The chemical potentials of light particles and quarks are extracted from the yield ratios, π − / π + , K − / K + , and p ¯ / p , of antiparticles to particles over an energy range from a few GeV to above 10 TeV. At a few GeV (∼4 GeV), the chemical potentials show, and the yield ratios do not show, different trends comparing with those at other energies, although the limiting values of the chemical potentials and the yield ratios at very high energy are 0 and 1, respectively.

QUARKONIA MEASUREMENTS WITH THE CENTRAL DETECTORS OF ALICE

A Large Ion Collider Experiment – ALICE will become operational with the startup of the Large Hadron Collider – LHC at the end of 2007. One focus of the physics program is the measurement of quarkonia in proton-proton and lead-lead collisions. Quarkonia states will be measured in two kinematic regions and channels: di-muonic decays will be measured in the forward region by the muon arm, the central part of the detector will measure di-electronic decays. The presented studies show the expected performance of the di-electron measurement in proton-proton and central lead-lead collisions.