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Using a combined experimental and theoretical approach, we show that the initial oxidation of a Rh(553) surface, a surface vicinal to (111), undergoes step bunching when exposed to oxygen, forming lower-index facets. At a pressure of about 10(-6) mbar and a temperature of 380 degrees C this leads to (331) facets with one-dimensional oxide chains along the steps, coexisting with (111) facets. Furth
A measurement of the beauty production cross section in ep collisions at a centre-of-mass energy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in the years 1999-2000. Events are selected by requiring the presence of jets and muons in the final state. Both the long lifetime and the large mass of b-flavoured hadrons are exploited to identify events contai
Wheat bran (WB), produced worldwide in large quantities as a by-product of the wheat milling industry, constitutes a significant underutilized source of sugars. This paper describes various methods of hydrolyzing the abundant polysaccharides in bran to yield a sugar feedstock suitable for fermentation into bioethanol. Firstly, the starch in the bran was released using amylolytic enzymes. The fibro
A humus soil with a pH of 4.9 was fumigated with chloroform for 5 h, after which only 1% of the initial bacterial activity remained. Half of the fumigated soil was limed to a pH of 7.5. Both the unlimed soil (UL) and the experimentally limed soil (EL) were inoculated with unfumigated (UL) soil or a field-limed (FL) soil with a pH of 6.1. The pH tolerance and activity of each developing bacterial c
The issue of this article is how disability and gender intersect when physically disabled children and youth choose to take long-term part in sports. The data has been derived from participant observations on a sport camp for youth with disabilities, and open-ended interviews with five physically disabled youngster, between 10 and 15 years old, and two table tennis coaches, 19 and 31 years old. Th
The remnants of the walls of three different iron furnaces excavated at Fyllinge 20:436, Snöstorps parish in Halland were studied in order to compare the technology behind their construction. Were they a wholly local enterprise or might itinerant iron production craftsmen be responsible for their construction? The results may be interpreted as a local development of the knowledge of furnace buildi
The impact of antineoplastic drugs on the intestinal microflora was studied in 9 patients with acute leukaemia during chemotherapy and in 5 patients also during chemotherapy-induced neutropenia. Quantitative and qualitative microbiological analyses of faecal samples obtained before and during chemotherapy showed significantly increased counts of Bacteroides spp. in 3/9 patients and, during neutrop
The syntheses of various amino- and hydroxy-substituted dehydrophenylalanine derivatives using the Heck-Jeffery protocol under non-solvent conditions in a ball mill are presented. The influences of electron-withdrawing groups and of the location of the heteroatom substituent relative to the halide are discussed. Suitably substituted ortho-amino dehydrophenylalanine derivatives undergo a cyclizatio
Popular Abstract in Swedish Begreppet systemförvaltning började användas i början på 1970-talet. Ämnet har betydelse ur flera perspektiv. Systemförvaltningskostnaderna är som regel betydligt större än systemutvecklingskostnaderna, vilket kan veri¬fieras med flera undersökningar gjorda i olika länder och under en tidsperiod omfattande ett par decennier. Det vetenskapliga intresset för systemförvaltThe term Software Maintenance was coined in the early 1970s. The subject has significance from several points of view. The costs associated with software maintenance are as a rule considerably higher than what the system cost to develop, which is borne out by many studies conducted in different countries over a period of twenty years. Scientific interest in software maintenance, on the other hand,
We report on the observation of excited states in the niobium isotope with masses 84, 85 and 86. These nuclei lie in the shape transition region known to occur in nuclei with 35 less-than-or-equal-to Z less-than-or-equal-to 40 and N = 45. Unambiguous identification was achieved by detecting gamma-rays in coincidence with mass-separated recoils produced in heavy-ion fusion reactions. Rotational ban
Objective: To conduct systematic long-term follow-up (LTFU) of patients in the Prevention of Relapses and Disability by Interferon beta-1a Subcutaneously in Multiple Sclerosis ( PRISMS) study to provide up to 8 years of safety, clinical and MRI outcomes on subcutaneous (SC) interferon (IFN) beta-1a in relapsing-remitting multiple sclerosis (RRMS). Methods: The original cohort of 560 patients was r
