22 research outputs found
Sixth-Order Vacuum-Polarization Contribution to the Lamb Shift of the Muonic Hydrogen
The sixth-order electron-loop vacuum-polarization contribution to the
Lamb shift of the muonic hydrogen ( bound
state) has been evaluated numerically. Our result is 0.007608(1) meV. This
eliminates the largest uncertainty in the theoretical calculation. Combined
with the proposed precision measurement of the Lamb shift it will lead to a
very precise determination of the proton charge radius.Comment: 4 pages, 5 figures the totoal LS number is change
Fashion retailing – past, present and future
This issue of Textile Progress reviews the way that fashion retailing has developed as a result of the application of the World Wide Web and information and communications technology (ICT) by fashion-retail companies. The review therefore first considers how fashion retailing has evolved, analysing retail formats, global strategies, emerging and developing economies, and the factors that are threatening and driving growth in the fashion-retail market. The second part of the review considers the emergence of omni-channel retailing, analysing how retail has progressed and developed since the adoption of the Internet and how ICT initiatives such as mobile commerce (m-commerce), digital visualisation online, and in-store and self-service technologies have been proven to support the progression and expansion of fashion retailing. The paper concludes with recommendations on future research opportunities for gaining a better understanding of the impacts of ICT and omni-channel retailing, through which it may be possible to increase and develop knowledge and understanding of the way the sector is developing and provide fresh impetus to an already-innovative and competitive industr
Londons triumphs express'd in sundry representations, pageants, and shows, performed on Monday, Octob. 30, 1676, at the inauguration and instalment of the Right Honourable Sir Thomas Davies, Kt., Lord Mayor of the city of London : containing a true description of the several scenes and habits of the representers, with the speeches spoken on each pageant / designed and composed by Tho. Jordan.
London in luster projecting many bright beams of triumph disposed into several representations of scenes and pageants : performed with great splendor on Wednesday, October XXIX, 1679, at the initiation and instalment of the Right Honourable Sir Robert Clayton, Knight, Lord Mayor of the city of London ... : all set forth at the proper cost and charges of the worshipful Company of Drapers / devised and composed by Tho. Jordan, Gent.
The trivmphs of the Golden Fleece. Performed at the cost and charges of the auncient and honourable societie of the drapers: for the enstaulment of their worthy brother Mr. Martin Lvmley in the maioraltie of London. On Wednesday, being the nine and twentieth day of October 1623. / Written by A. Mvndy, citizen and draper of London..
Het beloop van het benigne ulcus ventriculi; resultaten van een follow-up-onderzoek
A follow-up investigation was conducted in 112 patients in whom a benign gastric ulcer had been found endoscopically between 1978 and 1984. Nine patients had been operated upon, mainly in the earlier years. Out of 65 patients ultimately selected for the study 38 underwent gastroscopy and 35 could be evaluated. Of these 21 (60%) had complaints and another 60% used intermittent or continuous medication because of complaints referred to the stomach. In 15 patients erosions (4) or benign gastric ulcers (11) were found. In all patients in whom it was looked for Campylobacter pylori was found in the gastric mucosa. The benign gastric ulcer is a chronic, recurrent affection. We did not find a large proportion of asymptomatic recurrent ulcers. Many patients continue to use drugs. The complaints in patients with mucosal lesions are often atypica
An appraisal of the role of biliary phospholipases in the pathogenesis of gallstone disease
Human bile contains proteins that influence nucleation of cholesterol. Recently, it has been suggested that activity of phospholipases in bile may play a role in this process. To study the influence of phospholipase on nucleation we have determined the effect of phospholipases A2, C and D on the nucleation time of model bile. Phospholipase C decreased the nucleation time, whereas phospholipase A2 inhibited nucleation. The phospholipases were effective only at relatively high concentrations. Phospholipase D was strongly inhibited in model bile and probably only influenced the nucleation time by an aspecific protein effect. The cleavage products of the different phospholipases were determined in native bile samples of 14 cholesterol gallstone patients, 6 patients without stones and 4 patients with pigment stones. In all samples, choline, phosphorylcholine and free fatty acids (FFA) could be detected. However, there was no significant difference between the three groups of patients. The rate of production of choline, phosphorylcholine and FFA was measured in bile incubated at 37 degrees C. Again, there was no significant difference between the three groups of patients. We conclude that phospholipase activity in bile does not play an important role in the pathogenesis of gallstone diseas