Pore structure and methane adsorption of coal reservoir are closely correlated to the coalbed gas occurrence outburst. Full-scale pore its fractal heterogeneity samples were quantitatively characterized using low-pressure N2 (LP-N2GA) high-pressure mercury intrusion porosimetry (HP-MIP). Fractal capacities between outburst nonoutburst coals compared, their geological significance was discussed....

-The application of the Frenkel-Halsey-Hiil (FHH) formalism to the water desorption isotherms obtained for the whole range of the activity of water with the pressure membrane device (0.98 < aw < 1) and with the desiccator (0 < aw < 0.98) gives information concerning the nature and the relative importance of the 2 mechanisms involved in the dehydration-hydration processes: adsorption and capilla...

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Terry Beirn Community Programs for Clinical Research on AIDS. A controlled trial of isoniazid in persons with anergy and human immunodeficiency virus infection who are at high risk for tuberculosis. N Engl J Med 1997;337:315-20. 12 Whalen CC, Johnson JL, Okwera A, Hom DL, Huebner R, Mugyenyi P, et al. A trial of three regimens to prevent tuberculosis in Ugandan adults with the human immunodefic...

2. Lesens O, Hansmann Y, Riegel P, Heller R, Benaissa-Djellouli M, Martinot M, et al. Bacteremia and endocarditis caused by a Gordonia species in a patient with a central venous catheter. Emerg Infect Dis. 2000;6:382–5. 3. Verma P, Brown JM, Nunez VH, Morey RE, Steigerwalt AG, Pellegrini GJ, et al. Native valve endocarditis due to Gordonia polyisoprenivorans: case report and review of literatur...

Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children. Lancet 1998;351:637-41. 2 Taylor B, Miller E, Farrington CP, Petropoulos M-C, Favot-Mayaud I, Li J, et al. Autism and measles, mump and rubella vaccine: no epidemiological evidence for a causal association. Lancet 1999;353:2026-9. 3 Farrington CP, Miller E, Taylor B. MMR and autism: furth...

There are two main reasons that this is not always so in practice. The first is that the skull also has considerable effects on the geometry of the ultrasound beam, varying from a simple shortening of the focal distance (due to refraction and refocusing) to complete disintegration of the sample volume caused by irregularities of the inner bony surface ("split beam"). The first of these may poss...

Reporting effect sizes aids the transparent presentation and independent interpretation of scientific data. However, calculation and reporting of effect sizes for data obtained in basic research is rare. A standardized effect size was reported by Norman Cliff, known as Cliff's delta. It has several advantageous features, as (i) it makes no assumption on the shape of the underlying distribution,...

A new method of calculating the growth probabilities of the DLA clusters based on the Spitzer theorem is presented. It allows very accurate determination of the probabilities of hitting the random walkers by the perimeter of the cluster, even deep in the ‘fjords’ where the probabilities are small. The evidence for the first-order phase transition in the plots off(q) are found. The large fluctua...