1,350 research outputs found
Structural and functional characterization of protein complexes in the blood coagulation cascade
Tuning Yu-Shiba-Rusinov States in a Quantum Dot
We present transport spectroscopy of sub-gap states in a bottom gated InAs
nanowire coupled to a normal lead and a superconducting aluminium lead. The
device shows clearly resolved sub-gap states which we can track as the coupling
parameters of the system are tuned and as the gap is closed by means of a
magnetic field. We systematically extract system parameters by using numerical
renormalization group theory fits as a level of the quantum dot is tuned
through a quantum phase transition electrostatically and magnetically. We also
give an intuitive description of sub-gap excitations.Comment: 9 pages, 10 figure
A Unified Component Modeling Approach for Performance Estimation in Hardware/Software Codesign
This paper presents an approach for abstract modeling of hardware/software architectures using Hierarchical Colored Petri Nets. The approach is able to capture complex behavioral characteristics often seen in software and hardware architectures, thus it is suitable for high level codesign issues such as performance estimation. In this paper, the development of a model of the ARM7 processor [5] is described to illustrate the full potential of the modeling approach. To further illustrate the approach, a cache model is also described. The approach and related tools are currently being implemented in the LYCOS system [12]. Details and the basic characteristics of the approach can be found in [8]
Environmental factors affecting numbers of pink-footed geese Anser brachyrhynchus utilising an autumn stopover site
NorwayFor
huntable waterbird species, the autumn migration strategy may be important for their fitness, as their behaviour and
environmental factors may influence their exposure to hunting mortality. Hunting activity may also reduce the access to
food resources which may be limited in the wintering areas, thereby affecting winter survival. In this study we assessed the
possible influence of food resources, weather conditions, inter-specific competition and hunting intensity (as a measure
of possible disturbance) on abundance and distribution of pink-footed geese Anser brachyrhynchus at their main autumn
stopover site in Norway. The results show that food resources in term of spilt cereal grain were abundant, even by the time
the geese had moved on. Snow cover did not limit the food availability during the main migratory period. Inter-specific
competition with greylag geese Anser anser reduced food supplies locally and appeared to be increasing. Goose hunting
intensity varied among sites and our data indicate a negative relationship between hunting intensity and the rate at which
geese consumed the food resources. Collectively, our results suggest that the majority of pink-footed geese leave the stopover
area earlier than they would otherwise, when hunting intensities are high. In the case of pink-footed geese, population
consequences of disturbance is not a concern at present; however, an international species management plan calls for 1)
keeping disturbance low in areas where geese do not cause conflicts with agriculture to prevent them being pushed to areas
with problems, and 2) increased harvest to reduce and stabilise the population size. Both objectives can be met by reducing
hunting disturbance in mid-Norway and it is recommended that a better local organisation of hunting is implemented
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