نتایج جستجو برای: 17b
تعداد نتایج: 472 فیلتر نتایج به سال:
Transport-induced quenching, i.e., the homogenisation of chemical abundances by atmospheric advection, is thought to occur in atmospheres hot gas giant exoplanets. While some numerical modelling this process exists, three-dimensional nature transport-induced chemistry underexplored. Here we present results 3D cloud- and haze-free simulations HAT-P-11b, HD 189733b, 209458b, WASP-17b including co...
This paper reports the discovery and characterization of the transiting hot giant exoplanet Kepler17b. The planet has an orbital period of 1.486 days, and radial velocity measurements from the HobbyEberly Telescope show a Doppler signal of 419.5 −15.6 ms . From a transit-based estimate of the host star’s mean density, combined with an estimate of the stellar effective temperature Teff=5630± 100...
BACKGROUND Clostridium botulinum produces seven distinct serotypes of botulinum neurotoxins (BoNTs). The genes encoding different subtype neurotoxins of serotypes A, B, F and several dual neurotoxin-producing strains have been shown to reside on plasmids, suggesting that intra- and interspecies transfer of BoNT-encoding plasmids may occur. The objective of the present study was to determine whe...
Bromination of visnaginone (1) yielded the dibromo derivative (2), which upon methylation with methyl iodide gave 1-(2,7-dibromo-4,6-dimethoxybenzofuran-5-yl) ethanone (3). Compound (3) reacted with dimethylformamide dimethylacetal to give (4). The reaction of (3) with aromatic aldehydes namely (vanillin, benzaldehyde and 3-anisaldehyde) in ammonium acetate, malononitrile and/or butyric cyanoan...
Retinoids have been shown to act as cytostatic agents against a variety of tumor cell types, including squamous carcinoma cells. Recently it was reported that certain retinoids can induce apoptosis as well. Because we are investigating the potential of retinoids in chemoprevention and therapy for head and neck premalignant and malignant lesions, we compared the effects of all-trans-retinoic aci...
gp120 is a subunit of the Env (viral envelope protein) of HIV-1. The protein consists of inner and outer domains linked by a bridging sheet. Several gp120 residues that bind the neutralizing antibody 17b as well as the cellular co-receptor CCR5 (CC chemokine receptor 5), are located in the bridging sheet. Peptides that mimic the 17b-binding regions of gp120 would be useful potential immunogens ...
F4+ ETEC infection and oral immunization with F4 fimbriae elicits an IL-17-dominated immune response
Enterotoxigenic Escherichia coli (ETEC) are an important cause of post-weaning diarrhea (PWD) in piglets. Porcine-specific ETEC strains possess different fimbrial subtypes of which F4 fimbriae are the most frequently associated with ETEC-induced diarrhea in piglets. These F4 fimbriae are potent oral immunogens that induce protective F4-specific IgA antibody secreting cells at intestinal tissues...
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