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Träfflista för sökning "WAKA:ref srt2:(1980-1994)"

Sökning: WAKA:ref > (1980-1994)

  • Resultat 11-20 av 24804
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11.
  • Aberg, B, et al. (författare)
  • Delayed left ventricular free wall rupture complicating coronary artery bypass surgery. A case report.
  • 1985
  • Ingår i: Scandinavian journal of thoracic and cardiovascular surgery. - : Informa UK Limited. - 0036-5580. ; 19:3, s. 273-7
  • Tidskriftsartikel (refereegranskat)abstract
    • Rupture of the left ventricular free wall is a not uncommon life-threatening complication of acute myocardial infarction and after prosthetic mitral valve replacement. To our knowledge, no case of left ventricular rupture after coronary artery bypass surgery has been reported. A case is now described in which coronary artery bypass grafting was complicated by delayed rupture, which was successfully repaired. Different etiologic factors are discussed, but the cause considered most likely was trauma from elevation of and traction on the heart in exposure of its posterior aspect.
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12.
  • Aberg, T, et al. (författare)
  • Cerebral function monitoring in rats with a critical hepatic injury treated with pneumatic antishock garment and infusion
  • 1989
  • Ingår i: Journal of Trauma. - 0022-5282. ; 29:2, s. 168-174
  • Tidskriftsartikel (refereegranskat)abstract
    • Twenty-nine rats were subjected to a severe standardized hepatic injury and divided into four groups. In addition to controls, the animals were treated with PASG inflated to 40 mm Hg, PASG and infusion of Ringer's acetate, or PASG and infusion of Ringer's acetate and Dextran 70 in combination. The aim of the infusion therapy was to stabilize the mean aortic blood pressure at 60 mm Hg. PASG significantly prolonged the survival time and the time during which a sensory evoked response could be observed. The PASG also prolonged the time before the EEG amplitude began to decrease or a burst-suppression pattern appeared in the EEG. Intravenous infusion of Ringer's acetate did not prolong these times compared to when PASG was used alone; when Dextran 70 was added to the infusion therapy these times were reduced. Changes in the EEG were recorded at a mean aortic pressure of 60 mm Hg when infusions were given, whereas the aortic pressure had to fall to 40 mm Hg before any changes could be observed when no infusions were used.
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14.
  • Abeysekera, John, et al. (författare)
  • Body sizes and other human factors differences between Swedish and foreign students in Swedish universities
  • 1994
  • Ingår i: Ergonomics for Quality Life. - : PPCOE. ; , s. 420-423
  • Konferensbidrag (refereegranskat)abstract
    • Past studies have shown large differences in body size between people of Industrialized Countries (ICs) and Industrially Developing Countries (IDCs). These differences can have negative effects on the usage of technology which IDCs today acquire to a great extent from ICs. At the same time, the number of students from IDCs seeking education and training in universities in ICs is increasing. This paper reports on the impact of human factors differences particularly body size differences between foreign and local students on the use of university facilities, based on anthropometric and questionnaire surveys carried out on a small scale by foreign graduate students of Lulea University, Sweden. The study revealed large differences in body sizes between local and foreign students. The questionnaire survey of foreign students showed that there are other significant human factors differences such as the use of a foreign language, viz. Swedish which is unique to Scandinavia, and the exposure to long cold winters. Whether these differences in human factors influence the acquisition of knowledge or learning capacity of foreign students is worth further investigation.
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16.
  • Abeysekera, John D.A., et al. (författare)
  • A head-model reconstruction based upon photogrammetric data from Sri Lankan adult males relevant to the design of headgear
  • 1989
  • Ingår i: Journal of Human Ergology. - 0300-8134. ; 18:2, s. 199-211
  • Tidskriftsartikel (refereegranskat)abstract
    • Due to the large variability in heads and faces in one population, the standard anthropometric dimensions of the head, measured from anatomical landmarks alone, may not suffice for the design of fitting headgear, e.g., helmets. To provide adequate data of the shapes and contours of the head to the designer, appropriate head models sculptured using comprehensive head dimensions, must be developed. This paper describes (a) a procedure of collecting comprehensive anthropometric data of the head using a photogrammetric method and (b) a simple sculpturing technique to reconstruct a head model of the user population
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17.
  • Abeysekera, John D. A., et al. (författare)
  • Adaptation to discomfort in personal protective devices: an example with safety helmets
  • 1990
  • Ingår i: Ergonomics. - : Informa UK Limited. - 0014-0139 .- 1366-5847. ; 33:2, s. 137-145
  • Tidskriftsartikel (refereegranskat)abstract
    • Discomfort in the use of personal protective devices (PPD) has been one of the chief causes of their non-use. A field trial using industrial helmets was carried out to ascertain whether by training and repeated wearing subjects could experience a significant adaptation to discomfort. Ten subjects took part in the trial in a tropical environment by wearing helmets repeatedly (6 h a day) for one month. Subjective evaluations of discomfort were made at the end of the 1st, 3rd, 5th, 14th and 30th day. It was revealed that complaints of discomfort, viz. hotness, heaviness, bad fit, etc., decreased markedly throughout the 30 day period. Though positive responses of adaptation to discomfort seem to reach an optimum towards 30 days, it is difficult to draw any conclusions on the optimum period of adaptation for each discomfort factor. In relation to inherent discomforts that are extremely difficult to overcome without compromising the protection efficiency of a PPD, the principle of adaptation seems to be a very important facet which has to be developed for an effective PPD programme.
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19.
  • Abeysekera, John D.A., et al. (författare)
  • Body size variability between people in developed and developing countries and its impact on the use of imported goods
  • 1989
  • Ingår i: International Journal of Industrial Ergonomics. - : Elsevier BV. - 0169-8141 .- 1872-8219. ; 4:2, s. 139-149
  • Tidskriftsartikel (refereegranskat)abstract
    • The Industrially Developing Countries (IDC) today, to a great extent, depend on Industrialized Countries (IC) for the supply of most industrial goods. An attempt has been made to ascertain the degree of design incompatibility experienced by users of these imported goods due to differences in the body sizes of people in producer and user countries. A comparative study of variations in body sizes is made from data available in literature and from anthropometric surveys. The results reveal differences in almost every part of the human body. The need for reliable anthropometric data in respect of IDC is stressed. Urgent measures are required to introduce changes in equipment, particularly for the benefit of users in IDC.
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