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Vernica A. Segarra Clara Primus Graciela A. Unguez Ashanti Edwards Candice Etson Sonia C. Flores Catherine Fry Ashley N. Guillory Susan L. Ingram Mark Lawson Richard McGee Stephanie Paxson Laura Phelan Kirsta Suggs Leticia R. Vega Elizabeth Vuong J. Christopher Havran Alfredo Leon Michael D. Burton J. Luis Lujan Marina Ramirez-Alvarado 《Molecular biology of the cell》2020,31(23):2495
Scientific societies aiming to foster inclusion of scientists from underrepresented (UR) backgrounds among their membership often delegate primary responsibility for this goal to a diversity-focused committee. The National Science Foundation has funded the creation of the Alliance to Catalyze Change for Equity in STEM Success (ACCESS), a meta-organization bringing together representatives from several such STEM society committees to serve as a hub for a growing community of practice. Our goal is to coordinate efforts to advance inclusive practices by sharing experiences and making synergistic discoveries about what works. ACCESS has analyzed the approaches by which member societies have sought to ensure inclusivity through selection of annual meeting speakers. Here we discuss how inclusive speaker selection fosters better scientific environments for all and identify challenges and promising practices for societies striving to maximize inclusivity of speakers in their scientific programming. 相似文献
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Bone marrow-derived (B) and thymus-derived (T) Balb/c mouse lymphocytes were identified in the scanning electron microscope (SEM) by the immunospecific attachment of one of several kinds of large-molecular-weight markers distinguishable in SEM. These markers (tobacco mosaic virus, keyhole limpet hemocyanin, bushy stunt virus, and bacteriophage T4) could be modified with hapten groups and linked with anti-hapten antibody, in an indirect (sandwich) scheme, to hapten-modified anti-cell-surface antibody bound to the cell surface. Hapten-modified antibodies to B cell antigens (goat anti-mouse-immunoglobulin) or to T cell antigens (rabbit anti-mouse brain) were employed to identify these two lymphoid cell types in unfractionated spleen, mesenteric lymph node, bone marrow, and thymus cell populations. The topography of B cells was always indistinguishable from that of T cells. No surface features were found to be unique to either cell type. In suspension, the majority of B and T cells had one or no microvilli regardless of the tissue source of the labeled cells. Cells in suspension that had microvilli (usually 10% of the total cell population) were always unlabeled. However, after cell contact with a glass surface, approximately half of both the B and T cell populations had a villous topography. 相似文献
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Basenji-greyhound dog model of asthma: pulmonary responses after beta-adrenergic blockade 总被引:2,自引:0,他引:2
Hirshman C. A.; Downes H.; Leon D. A.; Peters J. E. 《Journal of applied physiology》1981,51(6):1423-1427
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Leon G. M. Gorris Jan M. A. van Deursen Chris van der Drift Godfried D. Vogels 《Applied microbiology and biotechnology》1988,29(1):95-102
Summary The influence of the volatile fatty acid composition of waste waters on biofilm development and on the time course of reactor start-up was investigated in laboratory scale fluidized bed reactors. It was found that biofilm development proceeded in a similar way with either acetate, butyrate, propionate or a mixture of these compounds as carbon source in the waste water. Startup was retarded, however, with propionate as sole carbon source. Scanning electron microscopic examination revealed that immobilization of bacteria on the sand used as adhesive support initially occurred in crevices and that thereupon the surface of the sand particles became colonized. The composition of the newly developed biomass was determined when reactors reached steady state. Significant differences in the relative substrate spectra and in the amounts of hydrogenotrophic and acetotrophic methanogenic bacteria were measured. The differences reflected the differences in the composition of the waste waters. The results obtained emphasize the role of the structure of the carrier surface in start-up of methanogenic fluidized bed reactors.Abbreviations used Aw
ash weight
- COD
chemical oxygen demand
- EB
fluidized bed
- hbi
vitamin B12-HBI
- spt
sarcinapterin
- UASB
upflow anaerobic sludge blanket
- VFA
volatile fatty acid
- VSS
volatile suspended solids
- Ww
wet weight 相似文献
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