8 research outputs found
The impacts of the food, fuel and financial crises on households in Nigeria. A retrospective approach for research enquiry
This paper examines the impacts of the financial, food and fuel crises on the livelihoods of low-income households Nigeria. It uses primary household level data from Nigeria to analyse the impacts of induced price variability on household welfare. Our results indicate that aggregate shocks have significant adverse effects on household consumption, human capital, and labour decisions with a degree of impact variability between northern and southern regions of the country. We find that the coping strategies adopted by the poor to deal with the short-term effects of the crises, and which include substitution for lower quality food, increasing the intensity of work, withdrawing children from school – especially girls – and engaging children in child labour, can lock households in a low-income equilibrium or poverty trap. Provided that covariate shocks exacerbate these effects, tackling the effects of covariate risks becomes central for present and future development policy
Assessing health-related quality of life in COPD: comparing generic and disease-specific instruments with focus on comorbidities
Die Landwirtschaft im städtisch-industriellen Ballungsraum als Problem der Wirtschafts- und Gesellschaftspolitik
The Impacts of the Food, Fuel and Financial Crises on Households in Nigeria: A Retrospective Approach for Research Enquiry
Observation of the p η ′ Cusp in the New Precise Beam Asymmetry Σ Data for γ p → p η
Data on the beam asymmetry Σ in the photoproduction of η mesons off protons are reported for tagged photon energies from 1130 to 1790 MeV (mass range from W=1748  MeV to W=2045  MeV). The data cover the full solid angle that allows for a precise moment analysis. For the first time, a strong cusp effect in a polarization observable has been observed that is an effect of a branch-point singularity at the pη′ threshold [Eγ=1447  MeV (W=1896  MeV)]. The latest BnGa partial wave analysis includes the new beam asymmetry data and yields a strong indication for the N(1895)12− nucleon resonance, demonstrating the importance of including all singularities for a correct determination of partial waves and resonance parameters
Observation of a structure in the M-p eta invariant mass distribution near 1700 MeV/c(2) in the gamma p -> p pi(0)eta reaction
The reaction gamma p -> p pi(0)eta has been studied with the CBELSA/TAPS detector at the electron stretcher accelerator ELSA in Bonn for incident photon energies from threshold up to 3.1 GeV. This paper has been motivated by the recently claimed observation of a narrow structure in the MN n invariant mass distribution at a mass of 1678 MeV/c(2). The existence of this structure cannot be confirmed in the present work. Instead, for E-gamma = 1400-1500 MeV and the cut M-P pi(0) pa(0) -> p pi(0)eta reaction
Polarization observables in double neutral pion photoproduction
Measurements of target asymmetries and double-polarization observables for
the reaction are reported. The data were taken with
the CBELSA/TAPS experiment at the ELSA facility (Bonn University) using the
Bonn frozen-spin butanol (CHOH) target, which provided transversely
polarized protons. Linearly polarized photons were produced via bremsstrahlung
off a diamond crystal. The data cover the photon energy range from
=650 MeV to =2600 MeV and nearly the complete angular
range. The results have been included in the BnGa partial wave analysis.
Experimental results and the fit agree very well. Observed systematic
differences in the branching ratios for decays of and
resonances are attributed to the internal structure of these excited nucleon
states. Resonances which can be assigned to SU(6)O(3) two-oscillator
configurations show larger branching ratios to intermediate states with
non-zero intrinsic orbital angular momenta than resonances assigned to
one-oscillator configurations.Comment: 21 pages, 27 figure