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- Forsberg, Lars L.
(författare)
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Site variability and settlement patterns : an analysis of the hunter-gatherer settlement system in the Lule River Valley, 1500 B.C.-B.C./A.D.
- 1985
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis deals with questions concerning prehistoric hunter-gatherer society on the River Luleälv in Northern Sweden from c. 1500 B.C. to B.C./A.D. Four main questions were posed. These concerned the material basis of society, functional changes and changes in resource utilization over time, and the social structure of society.The source material comes from 60 sites from the rivers Luleälv and Umeälv which were excavated in connection with the large-scale building of dams and power stations for hydro-electric purposes from the late forties to the early sixties. An additional data base has been 200 surveyed sites on the R. Umeälv.This material has been analyzed using univariate, bivariate and multivariate methods. The multivariate method has been Principal Component Analysis. In order to detect behaviourally significant patterning on the sites, isopleth maps of different classes of debitage have been constructed. In order to discuss resource utilization, opographical descriptions have been made of the separate site territories. An attempt has been made to test five different models of the settlement system.Analysis has resulted in three different models, one synchronic model of the settlement system c. 1500 B.C.-B.C./A.D., one diachronic model of the development of the hunter gatherer settlement systems during 6000 years, and one intrasite model characterizing five different site types. The settlement system during the period 1500 B.C.-B.C./A.D. was characterized by a clear bipolarity, with residential camps located in both the forest and the mountain foothill areas, the former being occupied during most of the year, while the latter were primarily occupied during the autumn. A clear distinction between the function of the two types of sites could also be discerned. The mountain foothill sites were characterized as projectile (hunting) dominated and the forest sites as primarily processing sites. This argument was strengthened by microwear analysis of four selected sites from both areas.The settlement system could also be seen to change from a system during the Early/Middle Neolithic period, mainly centered in the forest area, to the bipolar settlement system mentioned above. The intrasite model distinguished five site types: The residential camp in the mountain foothill area was characterized by flake concentrations, interpreted as huts, while the residential camp type in the forest area showed clear areas of about the same size as the supposed huts in the mountain foothill area. One type of exploitation camp, another type classified as a transitory camp, and an aggregation camp type were also postulated.
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| 2. |
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| 3. |
- Lyttkens, K., et al.
(författare)
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Incidental findings of gastrointestinal tumours at abdominal ultrasound examinations
- 1985
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Ingår i: Acta Radiologica. - : SAGE Publications. - 0284-1851 .- 0567-8056. ; 26:6, s. 671-675
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Forskningsöversikt (refereegranskat)abstract
- A retrospective review was performed of 11 patients referred to ultrasound examination because of abdominal pain and/or a palpable abdominal tumour, which eventually was proven to be gastrointestinal malignancy. Primary gastric carcinoma was present in 4 cases, carcinoma of the small bowel in one case, and of the large bowel in 6 cases. All the patients were examined with conventional ultrasound technique using a 3.5 MHz and a 5.0 MHz transducer. In all the cases bowel wall thickness exceeded 10 mm. A correct organ localization and primary diagnosis of tumour was made in 6 cases, of which only 2 had a palpable abdominal mass. In the remaining cases a bowel tumour was revealed in 3 but the site was incorrectly defined. Reviewing the documentations made at ultrasonography in these cases the tumour origin corresponded well with radiologic and surgical findings. In 2 patients an abscess was diagnosed which later proved to be due to a large bowel carcinoma. Ultrasound examination of patients with uncharacteristic abdominal complaints can spare the patient unnecessary examinations when the findings are pointing at a tumour in the gastrointestinal tract, save time and therefore is of economical importance.
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| 5. |
- Thorvinger, Björn, et al.
(författare)
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Staging in local endometrial carcinoma. Assessment of magnetic resonance and ultrasound examinations
- 1989
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Ingår i: Acta Radiologica. - 1600-0455. ; 30:5, s. 525-529
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Tidskriftsartikel (refereegranskat)abstract
- Possible deep (more than an inner third of the uterine wall) myometrial invasion and cervical extension of endometrial carcinoma were evaluated prospectively using magnetic resonance (MR) and transabdominal real-time sonography (US) in 20 and 10 patients, respectively. The data obtained from these examinations were compared with hysterosalpingography (HSG) and clinical modalities including hysteroscopy, sounding and histopathologic findings after surgery. The concordance of outlining cervical extension was between MR and hysteroscopy 85 per cent, and between US and hysteroscopy 50 per cent. Deep myometrial tumor invasion was suggested in 4/10 patients by US and in 6/20 by MR, and was confirmed in all but one in each group at histologic examination of the resected uterus. There were no false negative US or MR examinations. Transabdominal US did not prove accurate in defining local endometrial carcinoma (distinguishing between stages I and II), but it may be used as an additional tool in revealing myometrial invasion. MR, however, seems to refine the delineation of uterine tumor growth.
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