The authors previously reported that platelet-clumping substance (SHIMAMOTO and YAMAZAKI, 1958)1) was detected in heparinized plasma from rabbits administered adrenaline or high molecular weight substance such as agar solution and bacterial endotoxin by an intravenous injection.2) The plateletclumping substance also came to be observed in vitro of ter weak acidification of plasma in the presenc...

The importance of the fibrinogen-binding adhesin clumping factor A (ClfA) in the pathogenesis of Staphylococcus aureus septic arthritis was examined in an animal model. The protective effect of active and passive immunization with ClfA also was investigated in S. aureus infection models. The severity of arthritis was markedly reduced in mice challenged intravenously with a clfA mutant, compared...

Work on the nuclear cytology and life cycle of Nocardia corallina has previously been reported (Webb et al., 1954; Webb and Clark, 1957; Clark and Frady, 19.57). Extensive studies on the radiation response, physiology, and genetics of this organism have also been carried ouit in this laboratory. Throughout this work, one of the main problems involved in the experimental approach has been the el...

Context. Cassiopeia A is one of the most extensively studied supernova remnants (SNRs) in our Galaxy. The analysis its continuum spectrum through low-frequency observations plays an important role for understanding evolution radio source and propagation synchrotron emission to observers SNR environment ionized interstellar medium. Aims. In this paper we present measurements integrated Cas chara...

I use dynamical simulations of the line-driven instability to examine the potential role of the resulting flow structure in reducing the observed strength of wind absorption lines. Instead of the porosity length formalism used to model effects on continuum absorption, I suggest reductions in line strength can be better characterized in terms of a velocity clumping factor that is insensitive to ...

The clumping of coniferous needles into shoots is widely acknowledged as a structural feature that cannot be ignored in radiation regime models forests. However, higher level clumping, i.e. the aggregation leaves and tree crowns forest stands, still rarely accounted for models. Clumping reduces light interception increases penetration depth plant stand. To improve with respect to this parameter...

Lysozyme production is a frequent property of staphylococcal strains isolated from various sources; all 503 tested strains of Staphylococcus aureus and 13 out of 35 strains of Staphylococcus epidermidis produced an enzyme lysing Micrococcus lysodeikticus as tested by a modified plate method. Lysozyme production by staphylococci is more frequent than the production of free coagulase, clumping fa...

We have analyzed the far-ultraviolet spectrum of two Galactic O4 stars, the O4If+ supergiant HD 190429A and the O4V((f)) dwarf HD 96715, using archival FUSE and IUE data. We have conducted a quantitative analysis based on the two NLTE model atmosphere and wind codes, T and CMFGEN, which incorporate a detailed treatment of NLTE metal line blanketing. From the far-UV spectrum, we have derive...

High concentrations of bovine factor VIII cause clumping of platelets into a few very large aggregates. This response is termed superaggregation. It is distinct from factor-VIIIinduced agglutination but is also independent of both extracellular calcium ions and platelet energy metabolism. Neither agglutinating lectins nor aggregating agents. including thrombin. ADP. the ionophore A231 87. and U...