TL;DR: This work has developed a DNA-based, doubly steganographic technique for sending secret messages that is first camouflaged within the enormous complexity of human genomic DNA and then further concealed by confining this sample to a microdot.
Abstract: The microdot is a means of concealing messages (steganography)1 that was developed by Professor Zapp and used by German spies in the Second World War to transmit secret information2 A microdot (“the enemy's masterpiece of espionage”2) was a greatly reduced photograph of a typewritten page that was pasted over a full stop in an innocuous letter2 We have taken the microdot a step further and developed a DNA-based, doubly steganographic technique for sending secret messages A DNA-encoded message is first camouflaged within the enormous complexity of human genomic DNA and then further concealed by confining this sample to a microdot
TL;DR: In this paper, a multilayer compression support sleeve construction is presented, which includes a thin polyurethane film coated on both surfaces with an adhesive, and a stretchable elastomeric polymer material is bonded to each of the adhesive surfaces.
Abstract: A multilayer compression support sleeve construction. The laminate material includes a thin polyurethane film coated on both surfaces with an adhesive. A stretchable elastomeric polymer material is bonded to each of the adhesive surfaces. A substantial portion of one of the elastomeric polymer surfaces is coated with a discontinuous layer of silicone microdots. The microdots are applied by gravure roll printing to project a uniform distance above the elastomeric polymer surface to form small tacky dots. The laminate material is fabricated into a sleeve with the material oriented so that the microdot coated face is adjacent the skin of the wearer. Microdots may be applied in a predetermined pattern in order to impart enhanced compression to certain areas of the support sleeve. The resulting support sleeve retains its breathability while presenting a nonslip inner surface which prevents migration of the garment on the skin of the wearer during exercise. The garment does not cause irritation to the underlying skin.
TL;DR: The findings reveal that strain engineering in microfabricated devices allows altering the ionic conduction over a wide range beyond classic doping strategies for single films.
Abstract: In this paper, we present a strategy to use interfacial strain in multilayer heterostructures to tune their resistive response and ionic transport as active component in an oxide-based multilayer microdot device on chip. For this, fabrication of strained multilayer microdot devices with sideways attached electrodes is reported with the material system Gd0.1Ce0.9O2−δ/Er2O3. The fast ionic conducting Gd0.1Ce0.9O2−δ single layers are altered in lattice strain by the electrically insulating erbia phases of a microdot. The strain activated volume of the Gd0.1Ce0.9O2−δ is investigated by changing the number of individual layers from 1 to 60 while keeping the microdot at a constant thickness; i.e., the proportion of strained volume was systematically varied. Electrical measurements showed that the activation energy of the devices could be altered by Δ0.31 eV by changing the compressive strain of a microdot ceria-based phase by more than 1.16%. The electrical conductivity data is analyzed and interpreted with a s...
TL;DR: In this paper, a color image reproducing method uses at least cyan, magenta and yellow colorants, in which at least one color among them has a plurality of kinds of coloring densities.
Abstract: A color image reproducing method uses at least cyan, magenta and yellow colorants, in which at least one color among them has a plurality of kinds of coloring densities. According to this method, various microdots having different densities are formed; sizes of these dots are variably controlled; one pixel consisting of a plurality of cells is provided; the frequency of occurrences in one pixel of the microdots of the high density colorant and of the microdots of the low density colorant is varied in accordance with a reproduction density; and the thick microdot and thin microdot have sizes so as to reproduce almost the same reflection optical density. An intermediate region which is not included in any of the density reproduction ranges of the high and low density colorants is set, and this mid-density region is reproduced using both of the microdots of the high density colorant and the microdots of the low density colorant. A dither matrix method may be used for this reproduction. As a result, false profiles can be prevented and a color picture image with high gradient and high quality is derived.
TL;DR: Time-resolved investigations show that microdot formation lasts over several microseconds after laser excitation, and random lasers provide an outstanding strobe light source for time-res resolved microscopy.
Abstract: We demonstrate that random lasers provide an outstanding strobe light source for time-resolved microscopy. Utilizing a random laser to illuminate a commercially available microscope enables single exposure, speckle-free time-resolved imaging. Aside from conventional optical transmission microscopy, we also perform time-resolved investigations in phase contrast mode. We apply this method to the monitoring of fs-laser-induced microdot formation in bulk a-SIO(2). Time-resolved investigations show that microdot formation lasts over several microseconds after laser excitation.