Event Structure at RHIC from p-p to Au-Au

Several correlation analysis techniques are applied to p-p and Au-Au collisions at RHIC. Strong large-momentum-scale correlations are observed which can be related to local charge and momentum conservation during hadronization and to minijet (minimum-bias parton fragment) correlations.Comment: 6 pages, 6 figures, 20th Winter Workshop on Nuclear Dynamics, Trelawny Beach, Jamaica, March 15-20, 200

Structural panels

Vinyl pyridines including vinyl stilbazole materials and vinyl styrylpyridine oligomer materials are disclosed. These vinylpyridines form copolymers with bismaleimides which copolymers have good fire retardancy and decreased brittleness. The cure temperatures of the copolymers are substantially below the cure temperatures of the bismaleimides alone. Reinforced composites made from the cured copolymers are disclosed as well

Changing Family Incomes in New Zealand 2007–20

This article describes income mobility patterns in New Zealand over the short to medium term. It uses a special dataset which tracks the Household Labour Force Survey over the period from 2007 to 2020, using 2013 census data. The measure of income is total family taxable income per adult equivalent person. The income unit is the individual. Just below half of those initially in the bottom decile remained either there or in the second-lowest decile over seven years, while about two-thirds of those initially in the top decile remained either there or in the second-highest decile. Income mobility was least for those in the top and bottom deciles. People also move below or above a low-income threshold over time. Of those who initially had incomes less than half of the median income per adult equivalent person, about half remained in that category after six to seven years. Unemployment and single parenthood were closely associated with longer-term low income. Policies that promote employment and education may be effective, yet not necessarily sufficient, in reducing low income and low-income persistence

Vinyl stilbazoles

Vinyl pyridines including vinyl stilbazole materials and vinyl styrylpyridine oligomer materials are disclosed. These vinylpyridines form copolymers with bismaleimides which copolymers have good fire retardancy and decreased brittleness. The cure temperatures of the copolymers are substantially below the cure temperatures of the bismaleimides alone. Reinforced composites made from the cured copolymers are disclosed as well

Uncovering John Holliday’s industrial dye synthesis patented in 1865

Open Access via the Sage Agreement The authors thank the UK Engineering and Physical Sciences Research Council (EPSRC) National Mass Spectrometry Service Centre for mass spectrometric data and the UK National Crystallography Centre (University of Southampton) for the X-ray data collections. Data sets were obtained free of charge from the National Crystallography Centre, Southampton University.Peer reviewedPublisher PD

Reactions of 4,5-difluoro-1,2-dinitrobenzene with amines in dimethylformamide or EtOH

Funding The author(s) received no financial support for the research, authorship, and/or publication of this article.Peer reviewedPublisher PD

Effect of Aqueous Extract of the Bark of Entandrophragma utile in Acute Gastric and Duodenal Ulcer Models

Purpose: The bark of E. utile is claimed in Nigerian traditional medicine to have antiulcer properties. We therefore tested its effectiveness in experimental acute gastric and duodenal ulcer models.Methods: Ulcers generated as lesions, from pin-point craters to larger eruptions, were quantified qualitatively for cold-restraint, immobilization, pylorus ligation, and aspirin induced gastric ulcers and for histamine orcysteamine induced duodenal ulcers. Ethanol or histamine induced  hemorrhagic gastric lesions were quantified by planimetry and a dose-related effectiveness of the aqueous extract of E. utile was determined. Data were compared using Student’s t-test. At 95% confidence interval, any 2-tailed p value <0.05 was considered significant.Results: Using qualitative evaluation, the extract of E. utile or standard drugs (cimetidine, ranitidine, or nocloprost) did not significantly reduce gastric ulcer incidence and/or ulcer severity. E. utile was ineffectivefor duodenal ulcers. Using the quantitative methods, histamine, 5 mg kg-1 i.p. in guinea pigs produced 100% incidence of gastric ulcers with a mean ulcer index (UI) of 55.4 ± 8.38. In this model, 100 mg kg -1 cimetidinelowered the incidence to 60% and the UI to 17 ± 9.9 (p<0.0005) while 5 x 10-3g kg-1 E. utile lowered the incidence to 80% and the index to 15.88 ± 11.8 (p<0.01). Similarly 1 ml absolute ethanol given orally in rats produced 100% incidence and UI of 49.2 ± 12.69. In this model, 100 ìg kg-1 nocloprost reduced the incidence to 33% and the mean UI to 10.15 ± 0.55 (p<0.01); E. utile (50 mg kg-1) prevented ethanol induced  hemorrhagic gastric mucosal damage (p<0.005).Conclusion: E. utile protected the gastric mucosa against acute noxious assault.Keywords: Peptic ulcer, anti-ulcer, E. util