Lipids and Nucleic Acid in &lt;i&gt;M. lepraemurium&lt;/i&gt;

Mori, Toshiaki; Dohmae, Kayoko; Kohsaka, Kenji

doi:10.5025/hansen1930.37.4_311

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…The latter point is very interesting since most of the studies on LAEs have focused on stars as the main source of both Lyα and continuum luminosity; an exception is Dijkstra (2009), in which the case of Lyα and continuum luminosity coming from cooling of collisionally excited H I in the ISM alone has been explored. Cooling of H I becomes even more important when one considers that Lyα blobs are powered either by an inflow of cooling gas (Dijkstra & Loeb 2009) or by supernovae (SNe; Mori, Umemura & Ferrara 2004;Mori & Umemura 2007).…”

Section: Introductionmentioning

confidence: 99%

The cool side of Lyman alpha emitters

Dayal

Ferrara

Saro

2010

Monthly Notices of the Royal Astronomical Society

122

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We extend a previous study of Lyman alpha emitters (LAEs) based on hydrodynamical cosmological simulations, by including two physical processes important for LAEs: (i) Lyα and continuum luminosities produced by cooling of collisionally excited H i in the galaxy and (ii) dust formation and evolution; we follow these processes on a galaxy‐by‐galaxy basis. H i cooling on average contributes 16–18 per cent of the Lyα radiation produced by stars, but this value can be much higher in low‐mass LAEs and further increased if the H i is clumpy. The continuum luminosity is instead almost completely dominated by stellar sources. The dust content of galaxies scales with their stellar mass, Mdust∝M0.7*, and stellar metallicity, Z*, such that Mdust∝Z1.7*. As a result, the massive galaxies have Lyα escape fraction as low as fα= 0.1, with a LAE‐averaged value decreasing with redshift: 〈fα〉= (0.33, 0.23) at z= (5.7, 6.6). The ultraviolet (UV) continuum escape fraction shows the opposite trend with z, possibly resulting from clumpiness evolution. The model successfully reproduces the observed Lyα and UV luminosity functions at different redshifts and the Lyα equivalent width scatter to a large degree, although the observed distribution appears to be more more extended than the predicted one. We discuss possible reasons for such tension.

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Section: Introductionmentioning

confidence: 99%

The cool side of Lyman alpha emitters

Dayal

Ferrara

Saro

2010

Monthly Notices of the Royal Astronomical Society

122

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“…SEC traditionally has been considered to be a low-performance technique because of the use of soft or semi-rigid particles. The emergence of new packing materials for SEC has changed this perception (12)(13)(14). Modern SEC packing materials are typically rigid, 4-10 pm, silica-based spheres that have controlled pore sizes.…”

Section: Jntroductjonmentioning

confidence: 99%

Efficiency of packed microcolumns compared with large‐bore packed columns in size‐exclusion chromatography

Kennedy

Jorgenson

1990

J Microcolumn Separations

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Abstract.Columns with inner diameters of 50 and 28 pm were slurry-packed with 4-5 pm size-exclusion chromatography particles (Du Pont GF 250 Zorbax Bioseries) and compared with a commercially prepared 9.4-mm i.d. column that was packed with the Same particles. The columns were compared on the basis of efficiencies, peak shapes, and van Deemter coefficients obtained for three proteins used as test analytes. The microcolumns provided more symmetrical peak shapes and lower plate heighls than those provided by the commercial column if the peaks were analyzed using statistical moments. For example, h,,, for bovine serum albumin was 5.6 in the commercial column and 2.1 in the microcolumn. This difference is attributed to the quality of the packing process, based on the fact that the van Deemter A term was significantly lower for the microcolumn than for the conventional column. The van Deemter data demonstrate that the A term was the major source of band broadening in the commercial column throughout the range of velocities used, and both theA and C terms were significant for the microcolumn. A 90 cm X 50 pm column was prepared and showed approximately 80% of the expected increase in efficiency.

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“…Kusaka, Sato and Shoji (1964) demonstrated the lack of cytochrome components in M. lepraemurium collected from leprous nodules and in BCG recovered from the omentum of guinea pigs injected intraperitoneally with that strain. More recently, however, Mori, Kohsaka and Dohmae (1971) were successful in detecting spectrophotometrically cytochromes of the bl and a2 types as the terminal electron transport system of M. lepraemurium.…”

Section: Biological Propertiesmentioning

confidence: 99%