Background: Activation and expansion of regulatory T cells (Tregs) has been proposed as a strategy to treat autoimmunity. When administered in low doses, IL-2 expands activates Tregs leading clinical response several autoimmune diseases. However, the narrow therapeutic window results loss selectivity for concurrent activation conventional (Tconv) NK cells, limiting its utility. This may negate ...

Background: The present paper contributes to enrich the ethnobotanical knowledge of Calabria region (Southern Italy). Research was carried out in Alto Tirreno Cosentino, a small area lying between the Tyrrhenian coast and the Pollino National Park. In the area studied medicinal plants still play a small role among farmers, shepherds and other people who live far from villages and built-up areas...

We present measurements of the structure function F2 in e +p scattering at HERA in the range 3.5 GeV < Q2 < 5000 GeV. A new reconstruction method has allowed a significant improvement in the resolution of the kinematic variables and an extension of the kinematic region covered by the experiment. At Q2 < 35 GeV the range in x now spans 6.3 ·10−5 < x < 0.08 providing overlap with measurements fro...

A global event shape analysis of the multihadronic final states observed in neutral current deep inelastic scattering events with a large rapidity gap with respect to the proton direction is presented. The analysis is performed in the range 5 ≤ Q ≤ 185 GeV and 160 ≤ W ≤ 250 GeV, where Q is the virtuality of the photon andW is the virtual-photon proton centre of mass energy. Particular emphasis ...

The e-jet invariant mass spectrum produced in the reaction ep → eX has been studied at a center-of-mass energy of 300 GeV. The data were collected using the ZEUS detector operating at the HERA collider, and correspond to an integrated luminosity of 47.7 pb. The observed mass spectrum is in good agreement with Standard Model expectations up to an e-jet mass of 210 GeV. Above this mass, some exce...

A search for the leptonic decays of W bosons produced in the reaction ep → eWX at a centre-of-mass energy of 300 GeV has been performed with the ZEUS detector at HERA using an integrated luminosity of 47.7 pb. Three events consistent with W → eν decay are found, giving a cross section of 0.9 −0.7±0.2 pb, in good agreement with the Standard Model prediction. The corresponding 95% C.L. upper limi...

The production of D(2010) mesons in deep inelastic scattering has been measured in the ZEUS detector at HERA using an integrated luminosity of 37 pb. The decay channels D → Dπ (+ c.c.), with D → Kπ or D → Kπππ, have been used to identify the D mesons. The ep cross section for inclusive D production with 1 < Q < 600GeV and 0.02 < y < 0.7 is 8.31±0.31(stat.) −0.50(syst.) nb in the kinematic regio...

The reaction γ p → J/ψ p has been studied in ep interactions using the ZEUS detector at HERA. The cross section for elastic J/ψ photoproduction has been measured as a function of the photon-proton centre of mass energy W in the range 40 < W < 140 GeV at a median photon virtuality Q of 5 × 10−5 GeV. The photoproduction cross section, σγp→J/ψp, is observed to rise steeply with W . A fit to the da...

The ep charged-current deep inelastic scattering cross sections, dσ/dQ for Q between 200 and 60000 GeV, and dσ/dx and dσ/dy for Q > 200 GeV, have been measured with the ZEUS detector at HERA. A data sample of 47.7 pb, collected at a center-of-mass energy of 300 GeV, has been used. The cross section dσ/dQ falls by a factor of about 50000 as Q increases from 280 to 30000 GeV. The double different...

The e-jet invariant mass spectrum produced in the reaction ep → eX has been studied at a center-of-mass energy of 300 GeV. The data were collected using the ZEUS detector operating at the HERA collider, and correspond to an integrated luminosity of 47.7 pb. The observed mass spectrum is in good agreement with Standard Model expectations up to an e-jet mass of 210 GeV. Above this mass, some exce...