(n.) A large ornamental letter used, esp. by the early printers, at the commencement of the chapters and other divisions of a book.
Example Sentences:
(1) Speaking after the meeting in the Air Studios in north London, FAC board member and Radiohead guitarist Ed O'Brien described the outcome as "groundbreaking".
(2) Comparison of the results of this study with previously reported programs of FAC chemotherapy in patients with metastatic breast cancer shows that this study achieved higher overall and complete response rates.
(3) The following measurements were made relative to lymph nodes of untreated animals: (i) the expansion of the T-cell dependent areas in combination with the increase of HEV in this area, as detected by the HEV-specific mAb MECA-325, using morphometric analysis: (ii) the influx of FITC-labelled lymphocytes from the blood into the lymph node by FACS: (iii) the capacity of HEV to bind lymphocytes using an in vitro binding assay.
(4) FACS analysis revealed that approximately 40% of the EC population expressed HLA-DR antigen.
(5) At the functional level, we show that polyreactive IgM autoantibodies are produced by FACS-sorted CD5high B cells, but not by CD5- B cells from adolescent spleen.
(6) We studied changes in the distribution pattern of relative RNA content during the in vitro aging of TIG-3 cells by flow cytometry (FACS III).
(7) A regimen of ip injected antibody achieved rapid reduction of NK cells in diabetic and nondiabetic BB rats by FACS analysis.
(8) Pretreatment of beta-cells, purified by FACS with IL-1 beta results in a 40% inhibition of glucose-stimulated insulin secretion that is prevented by the nitric oxide synthase inhibitor, NG-monomethyl-L-arginine (NMMA).
(9) To test the diagnostic utility of FACs in BAL fluids, we compared 20 PCP-positive and 28 PCP-negative fluids as assessed by silver stains.
(10) The systematic study highlighted the fact that any laboratory contemplating conversion from microscopic reading of the GIFT should carefully evaluate and standardize their interpretation of FACS results with their manual reference method.
(11) We describe here the methods by which enriched populations of oligodendrocytes were isolated from adult porcine brains using Percoll density gradient centrifugation and their immunological properties analyzed by a fluorescence-activated cell sorter (FACS).
(12) For those who do not respond to FAC, the combinations active in refractory disease include vinca alkaloids and mitomycin C combinations.
(14) FACS-negative cell fractions were treated with heparitinase, nitrous acid, methanol-chloroform, or EDTA without modifying the number of reacting cells.
(15) FACS sorted Leu-7- cells, cultured for 7 days in the presence of 20% IL-2, acquired the receptors for Leu-7.
(16) Single-parameter FACS analyses demonstrate a diminution in both B cell number and the heterogeneity of membrane Ag expression within the surviving B cell pool after irradiation.
(17) The mean age at the time of surgery was 72.7 years for the ophthalmologists and 66.4 years for the FACS members.
(18) Tumor kinetic parameters were evaluated by TLI and PDP-LI in 22 patients on serial tumor biopsies at diagnosis (TO), after DES (T1), 24 hrs after the first FAC (T2) and at the time of radical surgery (T3).
(19) Both TNF and TNF receptors are detectable on monocyte membranes by FACS analysis, and the levels of each are modulated by treatment with IFN-gamma.
(20) Using FACS analysis, this antigen does not appear to be cell cycle specific, and is exposed to the external cell surface.
Lac
Definition:
(n.) Alt. of Lakh
(n.) A resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the Coccus lacca, a scale-shaped insect, the female of which fixes herself on the bark, and exudes from the margin of her body this resinous substance.
Example Sentences:
(1) Fifty-six percent of Lac+ transconjugants were resistant to the S. cremoris M12R lytic phage.
(2) We have previously shown that about 90% of total Escherichia coli lac repressor synthesized in mammalian cells is located in the cytoplasm [Hu and Davidson, Cell 48 (1987) 555-566].
(3) Hfr strains B4 and B8 transfer the Escherichia coli chromosome in opposite directions, each transferring lac(+) as the last known marker.
(4) Combined with histological analysis, these results suggest a more rapid recovery of normal spermatogenesis after physical insult with LAC treatment.
(5) The F'lac+ episome of Escherichia coli origin was transferred by conjugation with frequencies of 10(-7) to 10(-5) from Erwinia amylovora to 14 out of 15 Salmonella typhimurium trp female parents.
(6) A protein identical in properties to FIII L. casei lac was isolated from clones of E. coli carrying this DNA insert.
(7) Only one monoclonal antibody strongly inhibited cAMP binding by CRP, and this was accompanied by a consequent strong inhibition of both lac DNA binding and abortive initiation by RNA polymerase.
(8) These ends were cloned separately in lambdapMu hybrid particles that derived from a single Mu lysogen in the lac Z part of lambdaplac5.
(9) The structure of F13, a plasmid containing lac, purE, and proC, has been determined by heteroduplex analysis.
(10) In this case, resistance markers were lost when the transductants became Lac- but the derivatives remained copper resistant.
(11) Circular dichroic studies and hydropathy profiling of the amino-acid sequence of this 'lac' permease suggest a secondary structure in which the polypeptide consists of 12 hydrophobic segments in alpha-helical conformation that traverse the membrane in zig-zag fashion connected by shorter, hydrophilic domains with most of the charged residues and many of the residues commonly found in beta-turns.
(12) The strength of the STII gene promoter was compared with that of the ompF and lac operons, which were similarly fused to the lacZ gene.
(13) From the results of potassium iodide quenching of fluorescence from the tryptophans, and from attempts to react the native lac repressor with dimethyl(2-hydroxy-5-nitrobenzyl) sulfonium bromide and 2-hydroxy-5-nitrobenzyl bromide, we propose that tryptophan residue 209 is involved in a conformational change of the protein upon binding of inducer, but does not come in direct contact with inducer.
(14) In cells growing with interdivision times of 27, 36, and 55 min, the F'lac replicated at various stages in the division cycle but always at approximately the same time as initiation of chromosome replication.
(15) Expression of the blood group carbohydrates was similar in follicular and radicular cysts but differed from that seen in odontogenic keratocysts by the failure to detect N-lac in the latter.
(16) The phage lambda operator OR1 and a 18 base pair symmetric lac operator have been studied by high resolution NMR.
(17) Deletions covering all or part of the transfer region, as well as of lac and of pif, were obtained in the course of this analysis.
(18) A Mud(Ap, lac) prophage has been shown to be inserted into the ptsH gene of E. coli.
(19) From transient expression studies of the fusion gene between the chloramphenicol acetyltransferase and lac genes, it was found that the lacCAP binding site could act as an enhancer activity on the SV40 promoter, and also as an additive enhancer activity to the SV40 enhancer in HeLa cells.
(20) Expression of chlD-lac was increased in cells grown with nitrate.