Recent progress in microand nanofabrication techniques enables the creation of hierarchically architected microlattices with dimensional control over six orders of magnitude, from centimeters down to nanometers. This hierarchical control facilitates the exploration of opportunities to exploit nano-sized material effects in structural materials. In this work, we present the fabrication, characte...

[1] We examine how frictional heating drives the evolution of temperature, strength, and fracture energy during earthquake slip. For small slip distances, heat and pore fluid are unable to escape the shearing fault core, and the behavior is well approximated by simple analytical models that neglect any transport. Following large slip distances, the finite width of the shear zone is small compar...

Soft lithography allows for the simple and low-cost fabrication of nanopatterns with different shapes and sizes over large areas. However, the resolution and the aspect ratio of the nanostructures fabricated by soft lithography are limited by the depth and the physical properties of the stamp. In this work, silicon nanobelts and nanostructures were achieved by combining soft nanolithography pat...

LaF3/SrF2 multilayer heterostructures with thicknesses of individual layers in the range 5-100 nm have been grown on MgO(100) substrates using molecular beam epitaxy. The longitudinal conductivity of the films has been measured using impedance spectroscopy in the frequency range 10-1-106 Hz and a temperature range 300-570 K. The ionic DC conductivities have been determined from Nyquist impedanc...

1. The apparatus described was designed for the desiccation under uniform conditions of large quantities of yellow fever virus in the frozen state. 2. Several hundred cubic centimeters of virus material, distributed in small containers, have been desiccated simultaneously to almost complete dryness and with no appreciable loss of infectivity. 3. Good keeping qualities of the virus activity are ...

In comparison to other cancers, gliomas are locally invasive cancers that seldom metastasize. Glioma cells infiltrate brain parenchyma up to several centimeters from the tumor core. Therefore, their recurrence occurs at the margin of tumor resection in about 90% of patients (1). Significant effort is put into analyzing peritumoral regions to understand the mechanisms of glioma recurrence after ...

•Thin layers of plankton are commonly found in coastal environments, with a vertical scale ranging from centimeters to a few meters, but extending horizontally over kilometers. The abundance of organisms in these layers is several orders of magnitude higher than background levels1 and are persistent, lasting hours to days. These layers are highly productive and can contain 50-75% of the total b...