3,277 research outputs found
GRAPHITIC INTERLAYER STATES - A CARBON-K NEAR-EDGE X-RAY-ABSORPTION FINE-STRUCTURE STUDY
No full textMeeting with the Hebrew author Elias Hurwitz
No full textWhite paper; handpainted; on the reverse of Luftwaffe uniform pattern. Digitized posters are related to the activities of Jewish displaced persons drawn from the Records of Displaced Persons Camps and Centers in Germany (RG 294.2) Italy (RG 294.3) and Austria (RG 294.4) held by YIVO Archives. Please consult the historical note for those record groups for further information.Digital ImageDigital finding aid available
Letter by Z. Bartlett to Freeman Nye, 1813
No full textZacheus Bartlett (1765-1835) was a doctor in Plymouth, Massachusetts. He was an early adopter of the process of vaccination, following Dr. Benjamin Waterhouse’s lead.A letter by Dr. Zacheus Bartlett to his nephew Freeman Nye, Champlain, New York, August 1, 1813. The letter comments on the war of 1812. Bartlett states that “this disgraceful and wanton war already has carried distress to the cradles and firesides of us—upon the borders of the Atlantic—God grant a speedy end to the authority of its weak or wicked authors’… a kind providence…cloths our fields with full crops, but a deep gloom over shadows every face, once the abode of cheerfulness…
Obituary announcement about author and labor activist Sh. Mendelson
No full textBrown paper; handpainted. Digitized posters are related to the activities of Jewish displaced persons drawn from the Records of Displaced Persons Camps and Centers in Germany (RG 294.2) Italy (RG 294.3) and Austria (RG 294.4) held by YIVO Archives. Please consult the historical note for those record groups for further information.Digital ImageDigital finding aid available
rG-CSF reduces endotoxemia and improves survival during<i>E. coli</i>pneumonia
No full textFreeman, Bradley D., Zenaide Quezado, Fabrice Zeni, Charles Natanson, Robert L. Danner, Steven Banks, Marcello Quezado, Yvonne Fitz, John Bacher, and Peter Q. Eichacker. rG-CSF reduces endotoxemia and improves survival during E. coli pneumonia. J. Appl. Physiol. 83(5): 1467–1475, 1997.—We investigated the effects of recombinant granulocyte colony-stimulating factor (rG-CSF) during canine bacterial pneumonia. Beagles with chronic tracheostomies received daily subcutaneous rG-CSF (5 μg/kg body wt) or placebo for 14 days, beginning 9 days before intrabronchial inoculation with E. coli. Animals received antibiotics and fluid support; a subset received humidified oxygen (fractional inspired O20.40). Compared with controls, rG-CSF increased circulating neutrophil counts (57.4 vs. 11.0 × 103/mm3, day 1 after infection; P = 0.0001), decreased plasma endotoxin (7.5 vs. 1.1 EU/ml at 8 h; P< 0.01) and serum tumor necrosis factor-α (3,402 vs. 729 pg/ml at 2 h; P = 0.01) levels, and prolonged survival (relative risk of death = 0.45, 95% confidence interval 0.21–0.97; P = 0.038). Also, rG-CSF attenuated sepsis-associated myocardial dysfunction ( P < 0.001). rG-CSF had no effect on pulmonary function or on blood and lung bacteria counts (all P = not significant). Other animals challenged with endotoxin (4 mg/kg iv) after similar treatment with rG-CSF had lower serum endotoxin levels (7.62 vs. 5.81 log EU/ml at 6 h; P < 0.01) and less cardiovascular dysfunction ( P < 0.05 to < 0.002) but similar tumor necrosis factor-α levels ( P = not significant) compared with controls. Thus prophylactic rG-CSF sufficient to increase circulating neutrophils during bacterial pneumonia may improve cardiovascular function and survival by mechanisms that in part enhance the clearance of bacterial toxins but do not improve lung function.</jats:p
Sweeping has no effect on renormalized turbulent viscosity
No full textWe perform renormalization group analysis (RG) of the Navier-Stokes equation in the presence of constant mean velocity field , and show that the renormalized viscosity is unaffected by , thus negating the ``sweeping effect", proposed by Kraichnan [Phys. Fluids {\bf 7}, 1723 (1964)] using random Galilean invariance. Using direct numerical simulation, we show that the correlation functions for and differ from each other, but the renormalized viscosity for the two cases are the same. Our numerical results are consistent with the RG calculations
On reference governor in iterative learning control for dynamic systems with input saturation
No full textInput saturation is inevitable in many engineering applications. Most existing iterative learning control (ILC) algorithms that can deal with input saturation require that the reference signal is realizable within the saturation bound. For engineering systems without precise models, it is hard to verify this requirement. In this note, a “reference governor” (RG) is introduced and is incorporated with a range of existing ILC algorithms (primary ILC algorithms). The role of the RG is to re-design the reference signal so that the modified reference signal is realizable. Two types of the RG are proposed: one modifies the amplitude of the reference signal and the other modifies the frequency. Our main results provide design guidelines for two RGs. Moreover, a design trade-off between the convergence speed and tracking performance is also discussed. A simple simulation result verifies the effectiveness of the proposed methods
Original Strain of Umbelopsis ramanniana R-56 in ATCC
No full textA culture of a zygomycetous fungus, strain R-56, was isolated from the fruiting body of a mushroom (Russula sp.) collected in a forest in Jefferson County, Arkansas. It had brick-red sporangia and was identi¢ed as Mucor ramannianus.
References:
Parshikov I. A., Freeman J. P., Lay J. O. Jr., Beger R. D., Williams A. J., Sutherland J. B. Regioselective transformation of ciprofloxacin to N-acetylciprofloxacin by the fungus Mucor ramannianus. FEMS Microbiol. Lett. 1999. V. 177. P. 131-135.
Parshikov I. A., Freeman J. P., Lay J. O. Jr., Beger R. D., Williams A. J., Sutherland J. B. Microbiological transformation of enrofloxacin by the fungus Mucor ramannianus. Appl. Environ. Microbiol. 2000. V. 66. N. 6. P. 2664-2667.
Parshikov I. A., Freeman J. P., Lay J. O. Jr., Beger R. D., Williams A. J., Sutherland J.B. Microbiological transformation of enrofloxacin by the fungus Mucor ramannianus. 100th General Meeting of American Society for Microbiology, Los Angeles, California, May 21-25, 2000, Q-180. http://dx.doi.org/10.5281/zenodo.30106
Parshikov I. A., Freeman J. P., Lay J. O. Jr., Moody J. D., Williams A. J., Beger R. D., Sutherland J. B. Metabolism of the veterinary fluoroquinolone sarafloxacin by the fungus Mucor ramannianus. 100th General Meeting of American Society for Microbiology, Los Angeles, California, May 21–25, 2000, Q-182. http://dx.doi.org/10.13140/RG.2.1.2057.648
BONDING AND DYNAMICS OF CNRg AND CRg COMPLEXES
No full textAuthor Institution: Department of Chemistry, Emory University, Atlanta, GA 30322The van der Waals complexes of CN and C with rare gas atoms (Rg) are of interest from the perspectives of their bonding characteristics and predissociation dynamics. Matrix isolation data indicate that that the bonding ranges from a weak van der Waals interaction for the Ne complexes to incipient chemical bonding for Xe. The low-lying vibronic states of CN and C are interleaved, which facilitates electronic energy transfer. Consequently, electronic predissociation of CNRg and CRg complexes provides a useful means to examine the detailed dynamics of electronic energy transfer. Predissociation processes for CNRg complexes have been characterized using double resonance techniques. The final state distributions exhibit symmetry preferences that yield insights concerning the topologies of the relevant potential energy surfaces. In addition, bond energies can be deduced from the predissociation dynamics. Data for the binary complexes CNRg (Rg=Ne, Ar, Kr, and Xe) and CRg will be presented, along with theoretical analyses based on potential energy surfaces
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