Characterization of the geomechanical properties of Oligocene clay in Budapest

Abstract The Oligocene Kiscell Clay is a widespread sediment of the Budapest region. The best-evaluated parts of the deposit are found along the new Metro (subway) line (Line 4) on the Buda side of the Danube River, where cores were cut. The geomechanical parameters of the Kiscell Clay were studied and evaluated using 481 samples from 41 cores. Nearly 5000 data were processed using different statistical parameters. The results of the statistical analyses are compared with previously-described soil-mechanical parameters; regional correlations of the mechanical properties of the Kiscell Clay are made by comparison with the results of previous analyses (Görög 2007a). There are significant discrepancies in the datasets of cohesion and uniaxial compressive strength, but other parameters show better correlation. In any case these analyses provide information for the engineering geologic design and planning for underground structures

Engineering geologic evaluation of overcompacted claystone, new metro line, Budapest

Abstract The Oligocene clay units in the Budapest area along the new metro (subway) line show different properties than most others. They are denser and of greater strength than most of the unconsolidated ones. This paper provides an overview of their engineering geologic properties using nearly 4700 physical parameter data. These data were obtained from cores representing sampling intervals of the Kiscell Clay, on the Buda side of the Danube River. Seventeen engineering geologic parameters were used in the description of the clay. The parameter analyses show that the clay behaves as a soft rock rather than a soil

A nyaki ütőerek dissectiója – 19 eset retrospektív elemzése

Absztrakt: A cervicalis agyi erek dissectiója az ischaemiás stroke-betegség gyakori oka a fiatal felnőttek körében. Kialakulhat erőteljes nyaki trauma, de minor erőbehatás következtében is. Gyakori a spontán esetek előfordulása, melyek genetikai, anatómiai és környezeti tényezőkkel is összefüggésbe hozhatók. A kórkép klinikai megjelenése változatos, a tünetek lehetnek kizárólag helyi jellegűek, illetve az érintett arteriás területre jellemzőek. Korai felismerése kiemelkedően fontos, ugyanis az idejében megkezdett kezeléssel kimenetele számottevően javítható. A végleges diagnózis felállításához a képalkotó eljárások elengedhetetlenek. A közlemény célja a cervicalis agyi erek dissectiójának (carotis és vertebralis arteria dissectio) összefogló leírása 19 eset bemutatása kapcsán. A vizsgálat során három év alatt a Neurológiai Klinikán extracranialis arteria dissectio miatt kezelt betegek klinikai jellemzőit, rizikófaktorait, diagnosztikai eredményeit és terápiáját elemeztük. A kórkép prognózisa változatos, betegeink 42%-a tünetmentessé vált. Orv Hetil. 2019; 160(22): 861–868. | Abstract: Cervical artery dissection is a common cause of stroke in young adults. It might occur shortly after a forceful neck trauma or a minor injury. However, spontaneous dissection is also common, which is associated with genetic, anatomical or environmental risk factors. Cervical artery dissection can produce a broad spectrum of clinical presentation varying from local symptoms to focal neurological deficits determined by the arterial territory involved. Early recognition is important since immediate initiation of treatment can significantly improve patient outcomes. While clinical features may raise suspicion for dissection, the diagnosis has to be confirmed by neuroimaging findings. The purpose of this paper is to give an overview on cervical (carotid and vertebral) artery dissections while presenting 19 cases. During three years, we evaluated the clinical features, risk factors, diagnostic and therapeutic procedures of these patients admitted with extracranial artery dissection. The prognosis of the disease can vary, 42% of our patients became asymptomatic. Orv Hetil. 2019; 160(22): 861–868