The powerful combination of the Chandra X-ray telescope, the SCUBA submillimetre-wave camera and the gravitational lensing effect of the massive galaxy clusters A 2390 and A 1835 has been used to place stringent X-ray flux limits on six faint submillimetre SCUBA sources and deep submillimetre limits on three Chandra sources which lie in fields common to both instruments. One further source is m...

Dust emission around the nearby star ǫ Eridani has been imaged using a new submillimetre camera (SCUBA at the JCMT). At 850 μm wavelength a ring of dust is seen, peaking at 60 AU from the star and with much lower emission inside 30 AU. The mass of the ring is at least ∼ 0.01 M⊕ in dust, while an upper limit of 0.4 M⊕ in molecular gas is imposed by CO observations. The total mass is comparable t...

Abstract Data from 369 sightings of mobulid rays St Helena Island, Cardno and Bonaparte seamounts in the South Atlantic are summarised. 50 % (183) were observed a boat, 48 (176) encountered water, which 95 (168) whilst actively scuba diving. 2 (10) ray land. Sightings data indicate that Chilean devil Mobula tarapacana (Philippi, 1892) is frequent visitor to present all year. We document first p...

Thorecta reticulata Bergquist is a sponge of the family Thorectidae (order Dictyoceratida) collected from the Kaikoura Peninsula, New Zealand, by SCUBA at a depth of 20 m. Taxonomic identi"cation was provided by Professor Dame Patricia Bergquist, School of Biological Sciences, University of Auckland, and a voucher specimen (P.O.R. 436) has been deposited in the Museum of New Zealand, Wellington.

It is often suggested that the distant galaxies recently identified in 850-μm surveys with the SCUBA bolometer array on the JCMT Telescope are high-redshift analogues to local ultraluminous infrared galaxies, based on their similar spectral energy distributions and luminosities. We show that these two populations of objects must differ in at least one fundamental way from each other. This asser...

Field studies were conducted in a number of intertidal and offshore islands in the Persian Gulf between 2006 to 2013. SCUBA and skin diving surveys were conducted around Larak, Hormuz, Qeshm, Hengam, Farur, Kish, Lavan, Khark and Farsi islands in the northern region of the Persian Gulf. Marine invertebrates including nudibranchs were photographed up to 32 m. Several species of nudibranchs are r...

Field studies were conducted in a number of intertidal and offshore islands in the Persian Gulf between 2006 to 2013. SCUBA and skin diving surveys were conducted around Larak, Hormuz, Qeshm, Hengam, Farur, Kish, Lavan, Khark and Farsi islands in the northern region of the Persian Gulf. Marine invertebrates including nudibranchs were photographed up to 32 m. Several species of nudibranchs a...

Yang M, Barak OF, Dujic Z, Madden D, Bhopale VM, Bhullar J, Thom SR. Ascorbic acid supplementation diminishes microparticle elevations and neutrophil activation following SCUBA diving. Am J Physiol Regul Integr Comp Physiol 309: R338–R344, 2015. First published July 1, 2015; doi:10.1152/ajpregu.00155.2015.—Predicated on evidence that diving-related microparticle generation is an oxidative stres...

Using the MPIfR Max Planck Millimeter Bolometer array (MAMBO) on the IRAM 30m Telescope we have mapped the ELAISN2 and Lockman Hole East Fields at 1200μm to a rms noise level of 0.8−1.0mJy per 11′′ beam. The areas surveyed are 326 arcmin in the ELAISN2 field and 212 arcmin in the Lockman Hole, and cover the 260 arcmin previously observed by SCUBA [5]. The 1200μm number counts derived from the s...

We investigated long-term effects of SCUBA diving on cognitive function using a battery of neuropsychometric tests: the Simple Reaction Time (REA), Symbol Digit Substitution (SDS), Digit Span Backwards (DSB), and Hand-Eye Coordination tests (EYE). A group (n = 44) of experienced SCUBA divers with no history of decompression sickness was compared to non-diving control subjects (n = 37), as well ...