We reconstruct past accretion rates of a salt marsh on the island of Sylt, Germany, using measurements of the radioisotopes Pb and Cs, as well as historical aerial photographs. Results from three cores indicate accretion rates varying between 1 and 16 mm year. Comparisons with tide gauge data show that high accretion rates during the 1980s and 1990s coincide with periods of increased storm acti...

Neurotransmitters are released at presynaptic active zones (AZs). In the fly Drosophila, monoclonal antibody (MAB) nc82 specifically labels AZs. We employ nc82 to identify Bruchpilot protein (BRP) as a previously unknown AZ component. BRP shows homology to human AZ protein ELKS/CAST/ERC, which binds RIM1 in a complex with Bassoon and Munc13-1. The C terminus of BRP displays structural similarit...

Critical care in the U.S. military has significantly evolved in the last decade. More recently, the U.S. military has implemented organizational changes, including the use of multidisciplinary teams in austere environments to improve outcomes in severely injured polytrauma combat patients. Specifically, organizational changes in combat support hospitals located in combat zones during Operation ...

One of the quickest and most efficient methods to study urbanism conditions and determine critical conditions of regions and rate of losses after earthquake is the use of aerial photos. The critical conditions are more severe in cities and mountainous regions due to the steep slope of traffic routes, snow and frosting, and use of aggregates. Using satellite images and GIS maps different regions...

Effective evacuation is critical for safety of occupants. The exiting evacuation systems lack flexibility and don’t consider the distribution of occupants. It is possible to direct occupants to danger areas or cause congestion in certain areas. In this paper, a decentralized evacuation system is proposed to compute the safest path in real time. The system is composed of fire detection sensors, ...

Modern systems must be adaptable | to changing requirements, bug-xes, new technologies and reconnguration. For critical applications this must be possible at run-time; for complex applications it should be limitable to major subdivisions of the system. The DRASTIC architecture addresses these goals by exploiting object persistence and distributed systems implementation techniques. It enables ru...

We formulate a theoretical model to analyze the vascular remodelling process of an arterio-venous vessel network during solid tumour growth. The model incorporates a hierarchically organized initial vasculature comprising arteries, veins and capillaries, and involves sprouting angiogenesis, vessel cooption, dilation and regression as well as tumour cell proliferation and death. The emerging tum...

Structural rearrangements are an essential property of atomic and molecular glasses; they are critical in controlling resistance to flow and are central to the evolution of many properties of glasses, such as their heat capacity and dielectric constant. Despite their importance, these rearrangements cannot directly be visualized in atomic glasses. We used a colloidal glass to obtain direct thre...

Modern systems must be adaptable | to changing requirements, bugxes, new technologies and recon guration. For critical applications this must be possible at run-time; for complex applications it should be limitable to major sub-divisions of the system. The DRASTIC architecture addresses these goals by exploiting object persistence and distributed systems implementation techniques. It enables ru...

The ubiquity of surface-volume reactions in biological and industrial processes makes knowledge of their kinetics critical. This has spurred technological advances in several biosensors designed to measure rate constants, such as the Flexchip and the dotLab. These biosensors have multiple reacting zones in a single flow channel, and hence they also serve as good model systems for biochemical sy...