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- Andersson, Henrik O
(author)
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Artitekturritningar
- 1984
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In: Bebyggelsehistorisk tidskrift. - : Föreningen Bebyggelsehistorisk tidskrift. - 0349-2834 .- 2002-3812. ; :7, s. 57-66
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Journal article (peer-reviewed)
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- Andersson, Staffan, et al.
(author)
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A laser Doppler technique for measuring distal blood-pressure : a comparison with conventional strain-gauge technique
- 1986
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In: Clinical Physiology. - 0144-5979 .- 1365-2281. ; 6:4, s. 329-335
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Journal article (peer-reviewed)abstract
- Twenty-five patients with peripheral circulatory disorders were examined by laser Doppler and strain-gauge techniques to compare these methods of measuring distal systolic blood-pressure. The correlation coefficients for simultaneous measurement of toe and ankle systolic blood-pressures were high, 0.98 and 0.99 respectively. The correlation coefficient for successive measurements of toe pressure was lower, 0.83, probably because of a variation in blood-pressure with time. The laser Doppler method seems to be more sensitive than the strain-gauge method in the low-pressure range. The laser Doppler probe is easy to attach to most skin surfaces and the laser Doppler technique may be, therefore, an alternative and a complement to the strain-gauge method when the strain-gauge is difficult to use on damaged or ulcerous toes and feet.
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- Mellander, S, et al.
(author)
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Neural beta-adrenergic dilatation of the facial vein in man. Possible mechanism in emotional blushing
- 1982
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In: Acta Physiologica Scandinavica. - 0001-6772. ; 114:3, s. 393-399
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Journal article (peer-reviewed)abstract
- Ring preparations of the superficial buccal segment of the human facial vein, taken from extirpated tissue in 12 patients during neck surgery, were studied in vitro. The vein developed a maintained intrinsic myogenic tone in response to passive stretch and was supplied with alpha- as well as beta-adrenoceptors, both of which could be influenced by transmural nerve stimulation (TNS) and noradrenaline. These unusual characteristics for a vein are basically similar to the ones described for the rabbit facial vein by Pegram, Bevan & Bevan (1976). In man there seemed to be an inter-individual difference with regard to the abundance of 'innervated' alpha- and beta-adrenoceptors. Facial vein specimens from some subjects thus responded with prompt and pronounced net dilatation to TNS with maximum at 4 Hz and those from others with net constriction with maximum at 16 Hz. The latter showed a reversal into neural beta-adrenergic dilatation after alpha-adrenergic blockade. The human external jugular vein was devoid of intrinsic tone and beta-adrenoceptors. It is tentatively proposed that a beta-adrenergic neuro-effector mechanism in superficial ramifications of the facial vein in man might be involved in the emotional blushing reaction.
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- Roepstorff, P., et al.
(author)
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Application of Plasma Desorption Mass Spectrometry to Molecular Weight Determination of Structural Protein from Insect Cuticle
- 1986
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In: Journal of Mass Spectrometry. - : Wiley. - 1076-5174 .- 1096-9888. ; 13:12, s. 689-691
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Journal article (peer-reviewed)abstract
- During sequence determination of a structural protein from the cuticle of the migratory locust, Locusta migratoria, a discrepancy was found between the molecular weight calculated from the sequence data (15 323) and that estimated by SDS-gel electrophoresis (21 600). The protein contains several repeated sequences, and the discrepancy might indicate that part of the sequence was missing or that the protein contained a large prosthetic group. The molecular weight of the protein was determined by 127I-plasma desorption mass spectrometry to be 15 329±50 which confirms the sequence data and shows the molecular weight determination based on SDS-electrophoresis to be too high.
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