Pancreatic neuroendocrine tumors are typically solid neoplasms but in very rare cases present as cystic lesions. The diagnosis of cystic tumors in the pancreas is extremely difficult and the use of endoscopic ultrasound and fine-needle aspiration might be helpful in the work-up of patients with cystic neuroendocrine tumors in the pancreas.

During locomotion, neurons in motor cortex exhibit profound step-related frequency modulation. The source of this modulation is unclear. The aim of this study was to reveal the contribution of different limb controllers (locomotor mechanisms of individual limbs) to the periodic modulation of motor cortex neurons during locomotion. Experiments were conducted in chronically instrumented cats. The ac

Kulturartikel om Stanley Kubrick med anledning av John Baxters respektive Vincent LoBruttos biografier.

Intervju med David Cronenberg och Viggo Mortensen med anledning av biopremiären för filmen Eastern Promises.

We address the problem of transmit beamforming under channel uncertainties for a multiuser MIMO system, where both the transmitter and the receiver are equipped with multiple antennas. In transmit beamforming multi-user multiplexing is performed using spatial diversity techniques so that a base station could serve multiple users in the same frequency band enabling a substantial saving in bandwidth

Denna rapport är en redovisning av den intervjuundersökning som genomfördes under Äldre, Boende, Design projektets första etapp. Innehållet är organiserat efter fyra frågeställningar: Hur ser det moderna urbana äldrelivet ut? Hur beskriver deltagarna sin relation till den tekniska utvecklingen i allmänhet och till utvecklingen av informations- och kommunikationstekniken i synnerhet? I vilket av

Protein structure-function relationships can be studied by using linker insertion mutagenesis, which efficiently identifies essential regions in target proteins. Bacteriophage Mu in vitro DNA transposition was used to generate an extensive library of pentapeptide insertion mutants within the alpha-complementing domain 1 of Escherichia coli beta-galactosidase, yielding mutants at 100% efficiency. E

Den kinesiska utrikeshandelslagstiftningen genomgår en snabb omvandling. I två på varandra följande artiklar följs artikeln om utvecklingen av kinesisk handelsrätt i Svensk Juristtidning upp med en genomgång av Kinas immaterialrättsliga regelverk. I den första artikeln behandlas de nyligen antagna varumärkes- och patentlagarna med kortare utvikningar om anställda uppfinnare och upphovsrättsliga re

he health gains from risk reduction with regard to chemical health hazards have so far been most evident in the occupational setting. Development with regard to analytical and epidemiological methods, and possibilities to measure discrete effects, do however indicate health effects also at low levels of exposure, relevant for the general environment. Efficient risk reduction in the general, and ev

Simple analytical upper bounds, approximations and lower bounds on the error functionQ(x)are presented and analyzed. A class of functions are given, where the choice of two parameters result in good upper bounds, lower bounds and approximations onQ(x). The results are given in formulas, parameter tables and graphs. The approximations are suitable for programmable pocket calculators.