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BACKGROUND: End-to-side nerve repair is attachment of a single distal nerve segment (recipient nerve) end-to-side to an intact donor nerve when there is a lack of proximal nerve segment after injury. The technique is currently used clinically but the mechanism(s) behind this technique are essentially unknown. METHODS: We have studied end-to-side nerve repair in the forelimb of rats, where a single
An existence and uniqueness result for bounded, positive solutions x(t) of the equation u" + f (t, u, u') = 0, t greater than or equal to t(0) greater than or equal to 0, is established by means of the Banach contraction principle. For such a solution it is shown that alpha(t) less than or equal to x'(t) less than or equal to beta(t), t greater than or equal to t(0), where alpha, beta are given no
A study of the formation of resonant states in the conduction band, induced by impurities outside heterostructure quantum wells, is presented. We derive general expressions for the capture and scattering amplitudes, the resonance position and width, and we also calculate the effect on the energy spectrum and the density of states in the quantum well. The theory is applied to two typical impurity p
Objectives. Elevated plasma homocysteine might indicate an increased risk of cancer, and cardiovascular and neurological diseases. The homocysteine level depends on the supply of folate and cobalamine, and constipation and/or laxative treatment might compromise this supply. The present study examined the impact of constipation and laxative treatment on the blood levels of homocysteine, folate and
37 consecutive patients with radial tunnel syndrome treated by decompression of the posterior interosseous nerve and application of a free fat transplant were retrospectively evaluated 3.5 (1-5) years post-operatively by an independent observer. Substantial pain relief was reported by 13 patients and 15 patients were satisfied with the outcome. 16 of 35 patients returned to their preoperative empl
Combustion of hydrocarbons in under-ventilated conditions has been studied experimentally and simulated with the CFD-code SOFIE. This report covers the experimental study in a 1/3 scale model of the ISO room corner test (ISO) 9705). The CFD-simulation part of the project has been published earlier in a SP-Report 1996:41 “CFD Modelling if under-ventilated Fires” by Heimo Touvinen and presented at t
Highly crosslinked synthetic polymers, selective for various Nα-protected amino acids and derivatives, were prepared by non-covalent molecular imprinting. Methacrylic acid and ethylene glycol dimethacrylate were copolymerized in the presence of the print molecules, which were subsequently extracted from the polymers. The recognition of the polymers for the print molecules and molecules of similar
High-resolution core-level spectroscopy has been applied to the Ag/Si(111)root3xroot3 surface. The Si 2p line shape is found to depend critically on the presence of additional Ag adatoms on the surface. A significant broadening caused by the surplus of Ag atoms could be eliminated by careful annealing. The resulting Si 2p spectra are significantly sharper than any published data for this or other
Nanowires of zinc blende crystal structure, grown in the < 111 > B direction usually have a large number of twin plane defects. In order to investigate this phenomenon, we grow GaP nanowires with metal-organic vapor phase epitaxy. By rotating the nanowires in a high resolution transmission electron microscope, we show that the nanowire segments between the twin planes are of octahedral shape and a
Phomol (1), a novel antibiotic, was isolated from fermentations of a Phomopsis species in the course of a screening of endophytic fungi from the medicinal plant Erythrina crista-galli. For this Argentinean leguminosa anti inflammatory and neuroleptic activities have been described. The compound exhibits antifungal, antibacterial and weak cytotoxic acticity. The anti inflammatory activity was teste
Experimental results of synchrotron radiation focusing by parabolic planar compound refractive lenses, made of glassy carbon, are presented. The lenses with the curvature radius of 5 and 200 mu m, and with the geometric aperture of 40 and 900 mu m were developed. The number of bi-concave elements in the compound lenses was from 4 to 200. The experiments were performed at the ESRF at the bending ma
Popular Abstract in Swedish Framväxten av affärssystem under 1990 talet är en av de mest betydelsefulla utvecklingarna inom verksamhetsstödjande informationssystem. Affärssystem karaktäriseras av omfattande branschtäckning, stor funktionalitet, generisk lösning, processorientering, integrerad lösning och centralt dataformat, som tillsammans gör affärssystem kanske till den hittills mest komplexa oEnterprise Systems are one of the most important developments in corporate information systems during the last decade. These integrated information systems are characterized by a number of features which include a very broad scope and functionality, as well as being generic, master data, and business-process orientated. Together, these features make Enterprise Systems unique vis-à-vis other inform
The cycloruthenation of 2-phenylimidazole (phim) by [Ru(6-C6H6)(-Cl)Cl]2 in acetonitrile in the presence of NaOH has been carried out. The unstable intermediate [Ru(phim)(MeCN)4]PF6 formed has been converted into the complexes [Ru(phim)(4,4′-Me2bpy)(MeCN)2]PF6 (2) and [Ru(phim)(LL)2]PF6 (3, LL=phen (a), bpy, 4,4′-Me2bpy), which were characterized by the mass-spectrometry, 1H-NMR spectroscopy, UV–v
We study oscillator chains of the form phi(k)=omega(k)+K[Gamma(phi(k-1)-phi(k))+Gamma(phi(k+1)-phi(k))], where phi(k)is an element of[0,2pi) is the phase of oscillator k. In the thermodynamic limit where the number of oscillators goes to infinity, for suitable choices of Gamma(x), we prove that there is a critical coupling strength K-c, above which a stable frequency-entrained state exists, but be
Abdominal trauma occurring in persons older than 60 years over a 30-year period (1950-79) in a well defined region of Sweden was reviewed. The 177 patients comprised 12.5% of the total with abdominal trauma during that period. Road traffic accidents were the main cause of trauma (48% of cases). The incidence of motor-car accidents rose sharply during the first two decades of the study. Injuries to
