477 research outputs found

    Large deviations in quantum lattice systems: one-phase region

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    We give large deviation upper bounds, and discuss lower bounds, for the Gibbs-KMS state of a system of quantum spins or an interacting Fermi gas on the lattice. We cover general interactions and general observables, both in the high temperature regime and in dimension one.Comment: 30 pages, LaTeX 2

    Sub-Doppler resonances in the back-scattered light from random porous media infused with Rb vapor

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    We report on the observation of sub-Doppler resonances on the back-scattered light from a random porous glass medium with rubidium vapor filling its interstices. The sub-Doppler spectral lines are the consequence of saturated absorption where the incident laser beam saturates the atomic medium and the back-scattered light probes it. Some specificities of the observed spectra reflect the transient atomic evolution under confinement inside the pores. Simplicity, robustness and potential miniaturization are appealing features of this system as a spectroscopic reference.Comment: 6 pages, 4 figure

    Occurrence of morpholine in central nervous system drug discovery

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    Magnetometer suitable for Earth field measurement based on transient atomic response

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    We describe the development of a simple atomic magnetometer using 87^{87}Rb vapor suitable for Earth magnetic field monitoring. The magnetometer is based on time-domain determination of the transient precession frequency of the atomic alignment around the measured field. A sensitivity of 1.5 nT/Hz\sqrt{Hz} is demonstrated on the measurement of the Earth magnetic field in the laboratory. We discuss the different parameters determining the magnetometer precision and accuracy and predict a sensitivity of 30 pT/Hz\sqrt{Hz}Comment: 6 pages, 5 figure

    Hubungan Kadar Merkuri (Hg) dengan Profil Darah Pekerja Pertambangan Emas Tradisional di Desa Jendi Kecamatan Selogiri Kabupaten Wonogiri

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    Background: mercury is neurotoxic substance which can produce some health effect, depends on impact ofduration of exposure and quantity mercury used. Gold miner had a high risk of continously impact which maycause many health disorder, one of them is blood profile interference.The purpose of this reasearch was to know the relationship between mercury concentration in blood with bloodprofile of traditional mining gold worker in Jendi village, Selogiri Sub District, Wonogiri District.Methods: The study design was an analytic observational research. Research subject were whole of workers whowere working in mining gold. Variables in this research were mercury (Hg) in blood and blood profile. Datacollection using interview, observation, and measurement technique. Data would be analyzed using Kendal's Taucorrelation.Result: The results showed that the average of Hg in blood was 7,819 ppb. It was over toxic level (eˆ 5,8 ppb) andaverage blood profile consist of haemoglobin, erythrocyte, leukocyte, platelet, hematocrit, MCV, MCH, andMCHC were 14,771 gr/dl; 4,9536 jt/mmk; 7,5679 rb/mmk; 334,26 rb/mmk; 43,833%, 88,6333 fl; 29,8833 pg;33,6976. Bivariate analysis showed the significant relationship between mercury (Hg) in blood with bloodprofile (amount of leukocyte) p-value 0,017 and rho 0,257.Conclusion: The conclusion of the research was Hg rates in blood had a toxic limit standard so it can change theblood profile (decreased amount of leukocyte). It was recommended for gold miner to used a personal protectiveequipment like mask, lowering smoking habbit, checked-up, and make lots of green area at mining gold

    Nonlinear atomic spectroscopy inside a random porous medium

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    International audienceWe studied a novel spectroscopy setup where alkali atoms are infused in random micro-porous glass and the light probing the atoms have a diffuse nature after the propagation in this strong scattering medium
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