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Author Correction: Oncolytic DNX-2401 virotherapy plus pembrolizumab in recurrent glioblastoma: a phase 1/2 trial
Correction to: Oncolytic DNX-2401 virotherapy plus pembrolizumab in recurrent glioblastoma: a phase 1/2 tria
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2401-W Waste storage building closure plan
This plan describes the performance standards met and closure activities conducted to achieve clean closure of the 2401-W Waste Storage Building (2401-W) (Figure I). In August 1998, after the last waste container was removed from 2401-W, the U.S. Department of Energy, Richland Operations Office (DOE-RL) notified Washington State Department of Ecology (Ecology) in writing that the 2401-W would no longer receive waste and would be closed as a Resource Conservation and Recovery Act (RCRA) of 1976 treatment, storage, and/or disposal (TSD) unit (98-EAP-475). Pursuant to this notification, closure activities were conducted, as described in this plan, in accordance with Washington Administrative Code (WAC) 173-303-610 and completed on February 9, 1999. Ecology witnessed the closure activities. Consistent with clean closure, no postclosure activities will be necessary. Because 2401-W is a portion of the Central Waste Complex (CWC), these closure activities become the basis for removing this building from the CWC TSD unit boundary. The 2401-W is a pre-engineered steel building with a sealed concrete floor and a 15.2-centimeter concrete curb around the perimeter of the floor. This building operated from April 1988 until August 1998 storing non-liquid containerized mixed waste. All waste storage occurred indoors. No potential existed for 2401-W operations to have impacted soil. A review of operating records and interviews with cognizant operations personnel indicated that no waste spills occurred in this building (Appendix A). After all waste containers were removed, a radiation survey of the 2401-W floor for radiological release of the building was performed December 17, 1998, which identified no radiological contamination (Appendix B)
Seaboard Air Line (SAL) 2401
A photograph print showing the Seaboard Air Line (SAL) 2401, 2-10-2 (B), Charlotte, NC
2401. Ouvrages sur les Vaudois
2401. Ouvrages sur les Vaudois. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). III. Les Capétiens, 1180-1328. Paris : A. Picard et fils, 1903. p. 59
2401. Ouvrages sur les Vaudois
2401. Ouvrages sur les Vaudois. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). III. Les Capétiens, 1180-1328. Paris : A. Picard et fils, 1903. p. 59
Mechanism of Action and Limited Cross-Resistance of New Lipopeptide MX-2401
ABSTRACT
MX-2401 is a semisynthetic calcium-dependent lipopeptide antibiotic (analogue of amphomycin) in preclinical development for the treatment of serious Gram-positive infections.
In vitro
and
in vivo
, MX-2401 demonstrates broad-spectrum bactericidal activity against Gram-positive organisms, including antibiotic-resistant strains. The objective of this study was to investigate the mechanism of action of MX-2401 and compare it with that of the lipopeptide daptomycin. The results indicated that although both daptomycin and MX-2401 are in the structural class of Ca
2+
-dependent lipopeptide antibiotics, the latter has a different mechanism of action. Specifically, MX-2401 inhibits peptidoglycan synthesis by binding to the substrate undecaprenylphosphate (C
55
-P), the universal carbohydrate carrier involved in several biosynthetic pathways. This interaction resulted in inhibition, in a dose-dependent manner, of the biosynthesis of the cell wall precursors lipids I and II and the wall teichoic acid precursor lipid III, while daptomycin had no significant effect on these processes. MX-2401 induced very slow membrane depolarization that was observed only at high concentrations. Unlike daptomycin, membrane depolarization by MX-2401 did not correlate with its bactericidal activity and did not affect general membrane permeability. In contrast to daptomycin, MX-2401 had no effect on lipid flip-flop, calcein release, or membrane fusion with 1-palmitoyl-2-oleoyl-
sn
-glycero-3-phosphocholine (POPC)/1-palmitoyl-2-oleoyl-
sn
-glycero-3-phospho-(1′-rac-glycerol) (sodium salt) (POPG) liposomes. MX-2401 adopts a more defined structure than daptomycin, presumably to facilitate interaction with C
55
-P. Mutants resistant to MX-2401 demonstrated low cross-resistance to other antibiotics. Overall, these results provided strong evidence that the mode of action of MX-2401 is unique and different from that of any of the approved antibiotics, including daptomycin.
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Commento all'art. 2401
La riforma del diritto societario del 2003 ha coinvolto anche la disciplina dei controlli, con particolare riferimento alle norme sul collegio sindacale. Nel commento all'art. 2401 si analizzano le novità concernenti la sostituzione dei sindaci nel caso di morte o rinuncia all'incarico, evidenziando in modo particolare le problematiche che l'applicazione della nuova disciplina può sollevare. Particolare rilievo è dato, in tale ottica, al confronto tra la disciplina in esame e quella prevista per le società quotate
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