Many rare and valuable ancient specimens now carry the scars of ancient DNA research, as questions of population genetics and phylogeography require larger sample sets. This fuels the demand for reliable techniques to screen for DNA preservation prior to destructive sampling. Only one such technique has been widely adopted: the extent of aspartic acid racemization (AAR). The kinetics of AAR are...

Two major components of pineapple bromelain, purified to electrophoretical homogeneity, appeared to have the same oligosaccharide group consisting of n-glucosamine, n-mannose, D-xylose, and L-fucose in ratios of 2:2: 1: 1. By exhaustive proteolysis of the bromelains, glycopeptides containing only Asx, Glx, and Ser were obtained. Periodate oxidation, methylation, and glycosidase digestion showed...

Purpose: to determine the consistency of HVID/WTW measurements on 5 devices, and their correspondence distance from angle (ATA). Methods The relevant information 30 right eyes was obtained volunteers. A prospective study conducted using Wavelight Topolayzer Vario (Alcon), IOL Master 700 (Zeiss), OA2000 (Tomey), AS-OCT Casia 2 Zeiss Atlas 9000 (Carl Zeiss) instruments. Agreement between measurem...

We used the combination of preparative electrophoresis and immunological detection to isolate two new proteins from the shell calcitic prisms of Pinna nobilis, the Mediterranean fan mussel. The amino acid composition of these proteins was determined. Both proteins are soluble, intracrystalline, and acidic. The 38-kDa protein is glycosylated; the 17-kDa one is not. Ala, Asx, Thr, and Pro represe...

Doughnuts made from cowpea, a highly nutritious pulse, are frequently consumed in West Africa. As processing may affect their nutritional composition, cowpea into two doughnut types (ata and ata-doco) was characterized, samples collected 12 producers Cotonou, Benin. Proximate folate, mineral, phytate, alpha-galacto-oligosaccharide contents were determined the raw material, intermediate products...

s for consideration at ATA scientific meetings to feature new data presented as posters or oral presentations. The ATA goal is to provide the audience and the media with new data that are unpublished (in print or electronic) which are being publicly presented for the first time. Authors are asked to strictly comply with this requirement; data that are to become available to the public in the se...

The solution structure of one and two repeats of the 'SPKK' DNA-binding motif is reported on the basis of NMR measurements. In dimethylsulphoxide (DMSO) the major population (approximately 90%) of peptides, SPRKSPRK(S2) and GSPKKSPRK(S2b), adopts a conformation, which has two trans prolines. The two 'SP(R/K)K' units in these peptides are equivalent and each adopts a turn structure exchanging wi...

Objectives: The prevalence of labral tears in asymptomatic active adults has been reported, but the and other incidental hip lesions adolescent population not yet determined. purpose this study was to determine abnormalities detected on 3T MRI an with no symptoms and, secondarily compare found adolescents who underwent for a related condition. Methods: Following IRB approval, patients presentin...