3,186 research outputs found
Observation of eta-mesic nuclei in photoreactions: results and perspectives
Recent results from the LPI experiment on searching for eta-mesic nuclei in
photoreactions are discussed and further perspectives are summarized.Comment: 4 pages, 4 figures. Talk given by G.A.S. at NSTAR01, Mainz, German
The Proliferation of Global REITs and the Cross-Borderization of the Asian Market
After a brief discussion on the history of REITs, this Article goes on to analyze their importance and role within the global and Asian economy. Next, the underlying motivations for legal amendments to the REIT structures are discussed, as well as the socio-economic benefits associated with coordinating liberal REIT legislation throughout Asia. Subsequently, this article analyzes the various regulatory aspects of the regimes in Japan, Singapore, Hong Kong, South Korea, Thailand and Malaysia. In exploring their shortcomings, comparisons are made to the highly successful United States REIT structure. Given the history of our nation\u27s regime, it goes without saying that Asian REITs have a lot to learn in order to achieve maximum growth and future success
Rules for Rights: E uropean Law, Health Care and Social Citizenship
Social citizenship is about equality. The obvious problem for E uropean social citizenship in a very diverse U nion is that Member States will not be able or willing to bear the cost of establishing equal rights to health care and similar aspects of social citizenship. Health care is a particularly good case of this tension between EU citizenship and M ember S tate diversity. The E uropean C ourt of J ustice ( ECJ ) strengthened the right to health care in other Member States, but this cannot create an equal right to health care when Member States are so different. In its efforts to balance a E uropean right, the C ourt has formulated ‘rules for rights’—not so much European social citizenship rights, as a set of legal principles by which it judges the decisions of the M ember S tates.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/102057/1/eulj12036.pd
Performance of alkaline battery cells used in emergency locator transmitters
The characteristics of battery power supplies for emergency locator transmitters (ELT's) were investigated by testing alkaline zinc/manganese dioxide cells of the type typically used in ELT's. Cells from four manufacturers were tested. The cells were subjected to simulated environmental and load conditions representative of those required for survival and operation. Battery cell characteristics that may contribute to ELT malfunctions and limitations were evaluated. Experimental results from the battery cell study are discussed, and an evaluation of ELT performance while operating under a representative worst-case environmental condition is presented
Quantum Critical Scaling in a Moderately Doped Antiferromagnet
Using high temperature expansions for the equal time correlator and
static susceptibility for the t-J model, we present evidence for
quantum critical (QC), , behavior at intermediate temperatures in a
broad range of ratio, doping, and temperatures. We find that the
dynamical susceptibility is very close to the universal scaling function
computable for the asymptotic QC regime, and that the dominant energy scale is
temperature. Our results are in excellent agreement with measurements of the
spin-echo decay rate, , in LaCuO, and provide qualitative
understanding of both and nuclear relaxation rates in
doped cuprates.Comment: 11 pages, REVTeX v3.0, PostScript file for 3 figures is attached,
UIUC-P-93-07-068. In this revised version, we calculate the scaling functions
and thus present new and more direct evidence in favor of our original
conclusion
Detection of N-acyl homoserine lactones using a traI-luxCDABE-based biosensor as a high-throughput screening tool
<p>Abstract</p> <p>Background</p> <p>Bacteria use <it>N</it>-acyl homoserine lactone (AHL) molecules to regulate the expression of genes in a density-dependent manner. Several biosensors have been developed and engineered to detect the presence of all types of AHLs.</p> <p>Results</p> <p>In this study, we describe the usefulness of a <it>traI-luxCDABE</it>-based biosensor to quickly detect AHLs from previously characterized mutants of <it>Burkholderia cenocepacia </it>and <it>Pseudomonas aeruginosa </it>in both liquid and soft-agar co-culture assays in a high-throughput manner. The technique uses a co-culture system where the strain producing the AHLs is grown simultaneously with the reporter strain. Use of this assay in liquid co-culture allows the measurement of AHL activity in real time over growth. We tested this assay with <it>Burkholderia cenocepacia </it>and <it>Pseudomonas aeruginosa </it>but it should be applicable to a broad range of gram negative species that produce AHLs.</p> <p>Conclusion</p> <p>The co-culture assays described enable the detection of AHL production in both <it>P. aeruginosa </it>and <it>B. cenocepacia </it>and should be applicable to AHL analysis in other bacterial species. The high-throughput adaptation of the liquid co-culture assay could facilitate the screening of large libraries for the identification of mutants or compounds that block the synthesis or activity of AHLs.</p
Possibility to study eta-mesic nuclei and photoproduction of slow eta-mesons at the GRAAL facility
A new experiment is proposed with the aim to study eta-mesic nuclei and
low-energy interactions of eta with nuclei. Two decay modes of eta produced by
a photon beam inside a nucleus will be observed, namely a collisional decay
\eta N \to \pi N inside the nucleus and the radiative decay \eta \to \gamma
\gamma outside. In addition, a collisional decay of stopped S_{11}(1535)
resonance inside the nucleus, S_{11}(1535) N \to N N, will be studied. The
experiment can be performed using the tagged photon beam at ESRF with the
end-point energy 1000 MeV and the GRAAL detector which includes a
high-resolution BGO calorimeter and a large acceptance lead-scintillator
time-of-flight wall. Some results of simulation and estimates of yields are
given.Comment: 20 pages, 19 figure
Superconductivity and Spin Fluctuations in the Electron-Doped Infinitely-Layered High Tc Superconductor SrLaCuO (Tc=42K)
This paper describes the first 63-Cu NMR study of an electron-doped
infinitely-layered high Tc superconductor SrLaCuO (Tc=42K). The
spin dynamics in the normal state above Tc exhibits qualitatively the same
behavior as some hole-doped materials with significantly enhanced spin
fluctuations. Below Tc, we observed no signature of a Hebel-Slichter coherence
peak, suggesting an unconventional nature of the symmetry of the
superconducting order parameter.Comment: Invited Paper to SNS-95 Conference (Spectroscopies on Novel
Superconductors 1995 at Stanford). Also presented at Aspen Winter Conference
on Superconductivity and Grenoble M^2S-HTSC in 199
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