Bryce Rasmussen

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The mode of binding of interleukin-4 (IL-4) to its two known receptors, specific receptor IL-4R and a shared receptor gamma c, was investigated using gel filtration and gel electrophoresis. A ternary complex between IL-4 and the soluble domains of the two receptors was shown to exist in solution. The association constant between gamma c and the stable(More)
Population density can have profound, often negative effects on fitness-related traits and population dynamics, and density dependence is of central importance to many prominent ecological and evolutionary hypotheses. Here, we used experimental manipulations of food, population density, and water conditioning to characterize the mechanisms underlying(More)
(This is part 2, continued from " Use of harsh Wafer Probing to Evaluate Traditional Bond Pad Structures "). Goals for circuit under pad (CUP) in aluminum – silicon dioxide (Al – SiO 2) based IC pad structures include the design of metal interconnects in all layers beneath the pad Al, and the ability to withstand harsh probing and wirebonding stress without(More)
The refrigerants being used in vapor compression processes have specific thermodynamic properties, which are decisive for the performance of the compressor of the system The Montreal and the Kyoto protocols initiated a discussion of alternative refrigerants, which lead to new requirements of the compressor. In the paper, the relevant properties of the(More)
IC bond pad structures having Al metallization and SiO 2 dielectric have been traditionally designed with full plates in underlying metallization layers, connected by vias. In addition, pads having bond over active circuitry (BOAC) which are much more sensitive to pad cracks, are likely present in the same IC. Cracks in the pad dielectric weaken the bond(More)
A large number of cytokines have been shown to possess a four-helix bundle structure with a unique up-up-down-down connectivity. The receptors for this family of cytokines have been shown to be homologous as well, each possessing two tandem repeats of a fibronectin type III-like domain. The crystal structure of human growth hormone bound to the soluble(More)
XPressArray-II (XPA-II) is targeted for translation of FPGA prototypes to AMIS structured digital ASICs. In particular, XPA-II I/O design simplifies the translation task by supporting several key requirements. The increasing complexity, functionality, and higher performance of today's FPGAs presents a difficult design challenge for the next generation I/O(More)
Economic challenges for small size IC design and manufacturing require: reduced die size without adding layers or other costs, bonding with Cu wire instead of Au wire, and maintained or improved reliability. Die size shrinking involves extensive use of circuit under pad (CUP) or bond over active circuitry (BOAC) on IC's having at least two levels of metal.(More)