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Thirty images with added simulated pathological lesions at two different dose levels (100% and 10% dose) were evaluated with the free-response forced error experiment by nine experienced radiologists. The simulated pathological lesions present in the images were classified according to four different parameters: the position within the lumbar spine, possibility to perform a symmetrical (left-right
This paper presents, for the first time, non-contact acoustic trapping of cells in a microfluidic format. The employed acoustic force maintains the cells in the center of a fluidic channel while allowing for perfusion of e.g. nutrients or drugs as well as optical monitoring of the cells. Neural stem cells have been acoustically trapped and tested for viability after 15 minutes of ultrasonic radiat
This study investigated cold weather safety footwear and the possible thermal effects of steel toe caps in footwear. Two boot models were manufactured and used in two variants - with (As and Ws) and without (An and Wn) steel toe cap. The boot insulation was measured with an artificial, heated foot (AHF). Experiments with 6 male subjects with boots Ws and Wn consisted of sitting for 60 minutes at -
Calculations are reported of the nonlinear screening of a proton in an electron gas of densities corresponding to rs=1-6. Results for charge densities and total energies are presented from self-consistent Kohn-Sham ground-state calculations. The results differ markedly from the case of linear screening, particularly at low densities. The occurrence of a bound state around the proton for rs>1.9 ind
This paper presents and suggests a load combination factor for moisture induced stress (MIS) when MIS and snow load are combined. It is argued that MIS may be considered as an ordinary load to be combined with other structural actions, for example snow load. This outlook is not new but till now the load combination factor issue has not been investigated. Based on measured snow depths and calculate
Retrieval orientation describes the modulation in the processing of retrieval cues by the nature of the targeted material in memory. Retrieval orientation is usually investigated by analyzing the cortical responses to new (unstudied) material when different memory contents are targeted. This approach avoids confounding effects of retrieval success. We investigated the neural correlates of retrieva
