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- Angelöw, B., et al.
(författare)
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Arbetslöshet och kamp
- 1985
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Ingår i: Personal, 1985, 5, 56-57.
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 5. |
- Grögaard, B, et al.
(författare)
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Effect of carotid artery occlusion and ganglionic blockade on regional blood flows and intestinal damage after haemorrhagic hypotension in the rat.
- 1986
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Ingår i: Acta Physiologica Scandinavica. - : Wiley. - 0001-6772 .- 1365-201X. ; 127:1, s. 17-25
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Tidskriftsartikel (refereegranskat)abstract
- The effects of cerebral ischaemia by carotid artery occlusion and of a ganglionic blocking agent (Arfonad) on cardiac output and regional blood flows were studied after 15 min of haemorrhagic hypotension (mean arterial pressure 50 mmHg) in the rat. The microsphere technique was used for blood flow determinations. Animals subjected to haemorrhagic hypotension and simultaneous carotid artery occlusion (group BC) exhibited a stronger immediate vasoconstrictor response than animals subjected to haemorrhagic hypotension only (group B) and more blood had to be withdrawn to achieve stable hypotension at 50 mmHg (2.6 +/- 0.1 vs. 2.2 +/- 0.4 ml per 100 g body weight (body wt); P less than 0.05). However, group B showed the same decrease in cardiac output as group BC, but the blood flows of the kidneys, spleen, intestine, liver and skin were less deranged at the end of the hypotensive period. Groups B and BC exhibited similar intestinal ischaemic mucosal damage, measured as leakage of [125I]albumin. When induction of haemorrhagic hypotension was combined with ganglionic blockade administration (Arfonad) and carotid artery occlusion (group ABC), significantly less blood had to be withdrawn than in groups BC (1.6 +/- 0.2 vs. 2.6 +/- 0.1 ml per 100 g body wt; P less than 0.05). The blood flows of the kidneys, small intestine, liver, spleen and skin were less compromised in group ABC. In addition, group BC had more profound metabolic acidosis and were more haemoconcentrated than group ABC; moreover, group BC, tended to be hypoglycaemic and showed intestinal mucosal damage, whereas neither of these effects occurred in group ABC.(ABSTRACT TRUNCATED AT 250 WORDS)
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| 6. |
- Lundberg, B, et al.
(författare)
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Man vill så gärna ropa hej
- 1985
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Ingår i: Värmlands Folkblad, 1985, 28 juni.
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 8. |
- Lundberg, Erik B
(författare)
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Förvärvet av kulturhistoriska fastigheter
- 1983
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Ingår i: Kulturminnesvård. - Stockholm : Riksantikvarieämbetet. - 0346-9077. ; :4-5, s. 9-14
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- En stor del av de fastigheter Vitterhetsakademien och riksantikvarieämbetet äger och förvaltar är donationer och överföringar från annan myndighet. Men stora inköp har också gjorts som är betydelsefulla ur kulturhistorisk synpunkt. Erik B Lundberg, f d byråchef vid ämbetets dokumentationsbyrå berättar om fastighetsförvärv från 40-talet och framåt.
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| 9. |
- Lundberg, Johan, et al.
(författare)
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Direct evidence of active sympathetic vasodilatation in the skin of the human foot
- 1989
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Ingår i: Journal of Physiology. - 1469-7793. ; 417, s. 437-446
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Tidskriftsartikel (refereegranskat)abstract
- 1. During operative aorto-femoral vascular reconstructions on sixteen patients, the sympathetic chain was stimulated electrically between the L2 and L4 ganglia while blood flow was monitored by laser doppler flowmeters from the skin on the sole of the foot and the ankle and by an electromagnetic flowmeter from the deep femoral artery. Epidural anaesthesia to at least the T6 level was used which excluded reflex effects. 2. Stimulation (10 Hz) at 1-12 mA current strengths for 30 s evoked both reductions and increases of blood flow in glabrous and hairy skin. Initial short-lasting flow increases (durations 9-19 s) followed by sustained decreases were common: sometimes there were sustained flow increases at low and decreases at high current strengths. 3. In the deep femoral artery (supplying predominantly muscle) only flow reductions were evoked. 4. The results provide evidence for sympathetically mediated vasodilatation in the skin of the human foot whereas leg muscles may be supplied by vasoconstrictor nerves only.
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| 10. |
- Nordlund, Erling, et al.
(författare)
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Slip and energy dissipation in conical friction joints loaded by impact-induced waves
- 1986
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Ingår i: International Journal of Impact Engineering. - 0734-743X .- 1879-3509. ; 4:2, s. 127-144
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Tidskriftsartikel (refereegranskat)abstract
- Conical friction (CF) joints subjected to impact-induced wave (IIW) loading are studied theoretically and experimentally. The system considered consists of a long, straight, cylindrical and linearly elastic rod which is impacted axially at one end, and which has a body attached by means of a CF joint at the opposite end. The conditions are such that the wave propagation is 1-D in the rod and can be neglected in the attached body, which is therefore treated as rigid. Slip and energy dissipation in the CF joint due to a single IIW load are determined as functions of four dimensionless parameters which represent the duration of the incident wave, the mass of the attached body, the behaviour of the CF joint and the initial slip due to a compressive preload. The conditions under which detachment occurs are also found. Results for repeated noninteracting IIW loads are derived from those obtained for a single IIW load. The theoretical results exhibit phenomena which may sometimes have a spectacular appearance. For example, four consecutive and identical IIW loads may have the effect of fastening, loosening, fastening again and, finally, detaching the CF joint. There is a fair agreement between theoretical and experimental results.
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