Retrodirective modulator Patent

Optical retrodirective modulator with focus spoiling reflector driven by modulation signa

Bioconjugation of Green Fluorescent Protein via an Unexpectedly Stable Cyclic Sulfonium Intermediate

Bioconjugation of superfolder GFP involving the formation of an unusually stable, and unprecedented, cyclic sulfonium species is described. This sulfonium can undergo smooth reaction with a range of nucleophiles to give sulfur-, selenium- and azide-modified GFP derivatives in high conversions

Wavelength dependence of laser beam scintillation

Laser beam scintillation and log-amplitude variance evaluation for wavelengths on digital compute

Prelaunch testing of the GEOS-3 laser reflector array

The prelaunch testing performed on the Geos-3 laser reflector array before launch was used to determine the lidar cross section of the array and the distance of the center of gravity of the satellite from the center of gravity of reflected laser pulses as a function of incidence angle. Experimental data are compared to computed results

Temperature and Oxygen Determinations in some Irish Lakes

Information about temperature and dissolved oxygen profiles in Irish lakes has hitherto been lacking. During the period 1966 to 1969 data on temperature and dissolved oxygen content at various depths were determined for a number of Irish lakes. The results are summarised in this paper

Size Distribution and Food of Thornback Rays (Raja clavata L) Caught on Rod and Line on the Mayo Coast

A total of 732 Thornback Rays (R. clavata) were examined for length, wingspan, weight, sex and food in two bays on the west coast of Ireland. The samples were taken by rod and line during angling festivals in Clew Bay in June 1971 and in Broadhaven Bay in September 1971. The length/wingspan relationship for both sexes in both areas was found to be linear and the wingspan/weight relationship was the same for both sexes. The males become mature between 15.0 and 17.0 inches (38 to 43 cm) wingspan, while the females become mature between 18.0 and 20.0 inches (45.5 to 50.5 cm) wingspan. The sex ratio of males to females in each of the two samples was 1:1 in Clew Bay and 1.4:1 in Broadhaven Bay. The main food items in the stomachs of the rays from Clew Bay were Macropipus spp. (44 per cent), Crangon (23 per cent), Carcinus (21 per cent) and Lamellibranchs (10 per cent). In Broadhavcn Bay Ammodytidae (21.5 per cent), other fishes (19.5 per cent) and Macropipus spp. (14 per cent) formed the bulk of food items. A total of 71 R. clavata were tagged in Broadhaven Bay in the summer of 1971 and to date there have been 8 recaptures 7 within Broadhaven Bay. The days at liberty varied from 0 to 775 and the greatest distance travelled was 14 miles

Nanosecond time transfer via shuttle laser ranging experiment

A method is described to use a proposed shuttle laser ranging experiment to transfer time with nanosecond precision. All that need be added to the original experiment are low cost ground stations and an atomic clock on the shuttle. It is shown that global time transfer can be accomplished with 1 ns precision and transfer up to distances of 2000 km can be accomplished with better than 100 ps precision

Pelagic Eggs and Young Stages of Fishes Taken on the South Coast of Ireland in 1967

Emes W. L. Halt was one of the pioneers of research on the spawning and early development of marine fishes, and collections of pelagic eggs and young stages of fishes made by him on the west coast of Ireland were the basis of some major contributions to the then young science of fisheries biology (HoIt 1891, 1893, 1899). Much more recently Fives (1967a) has worked on pelagic young stages of fishes taken in the plankton on the coasts of Galway and Clare. Collections of eggs and young stages of clupeoids have been made on, the south coast of Ireland in winter during the years 1960-1962 (Bud and Bracken, 1965; Bracken and Kennedy, 1967). Hitherto, however, no collections of eggs or young stages of other fishes appear to have been made on the south coast. As part of a programme of research by the Inland Fisheries Trust into the biology of the bass, Dicerntrarchus labrax (L.) in Irish waters, tow-netting for bass eggs was carried out at four centres on the southeast and south coasts of Ireland during the period April to June 1967. Pelagic eggs of a variety of species of fish, including bass, were obtained, as well as larvae, post-larvae and fry. The tow-netting was done close to shore and in estuaries-areas not as a rule sampled as extensively as the offshore waters where the major commercial fishes The results of the tow-nettings help, therefore, to fill in some of the gaps in existing data on the reproduction of fishes on the Irish coast

A novel approach to the site-selective dual labelling of a protein via chemoselective cysteine modification

Local protein microenvironment is used to control the outcome of reaction between cysteine residues and 2,5-dibromohexanediamide. The differential reactivity is exploited to introduce two orthogonal reactive handles onto the surface of a double cysteine mutant of superfolder green fluorescent protein in a regioselective manner. Subsequent elaboration with commonly used thiol and alkyne containing reagents affects site-selective protein dual labelling

Services surround you:physical-virtual linkage with contextual bookmarks

Our daily life is pervaded by digital information and devices, not least the common mobile phone. However, a seamless connection between our physical world, such as a movie trailer on a screen in the main rail station and its digital counterparts, such as an online ticket service, remains difficult. In this paper, we present contextual bookmarks that enable users to capture information of interest with a mobile camera phone. Depending on the user’s context, the snapshot is mapped to a digital service such as ordering tickets for a movie theater close by or a link to the upcoming movie’s Web page