We present sensitive 850μm SCUBA photometry of a statistically-complete sample of six of the most luminous (MB < −27.5; νLν(1450 Å) >∼ 10 13 L⊙), z > 4 radio-quiet quasars, reaching noise levels (1σ ∼ 1.5mJy) comparable with the deep blank sky surveys. These observations probe the rest frame far infrared region (∼150μm), at luminosity levels for thermal sources comparable with those that IRAS p...

OBJECTIVE Scuba diving, characterized by hyperoxia and hyperbaria, could increase reactive oxygen species production which acts as signaling molecules to induce adaptation against oxidative stress. The aim was to study the effects of scuba diving immersion on neutrophil inflammatory response, the induction of oxidative damage, and the NO synthesis. DESIGN Nine male divers performed a dive at ...

We present results of a new deep 1.1 mm survey using Bolocam, a millimeterwavelength bolometer array camera designed for mapping large fields at fast scan rates, without chopping. A map, galaxy candidate list, and derived number counts are presented. This survey encompasses 324 arcmin to an rms noise level (filtered for point sources) of σ1.1mm ≃ 1.4 mJy beam and includes the entire regions sur...

We present the results of new rest-frame far-IR observations of the z = 4.25 radio galaxy, 8C 1435+635, which not only confirm that it contains an enormous quantity of dust (as first inferred from its mm-wave detection by Ivison 1995) but also allow the first meaningful constraints to be placed on the mass of this dust and associated gas. The new measurements consist of: (i) clear detections of...

Our view of galaxy evolution has been dramatically enhanced by the recent deep field submm surveys carried out with the SCUBA camera on the JCMT. SCUBA has discovered a population of luminous infrared galaxies at redshifts ∼ 1– 4 that emit most of their energy at far-IR/submm wavelengths. The cumulative surface density of submm sources (∼ 10 deg with S850 > 1mJy) appears to be sufficient to acc...

Faunal inventories are extremely important, especially when focused on neglected groups, such as echinoderms, and concentrated on areas under intense anthropic activity such as the SAo Sebastilo Channel in Brazil (23 degrees 41' - 23 degrees 54' S and 45 degrees 19' - 45 degrees 30' W). Intertidal and upper sublittoral zone collections were performed at five sites of the Channel's continental m...

Abstract The existence of coral reefs in Muara Badak makes this ecosystem very attractive as an object research, especially reef fish. aim research is to determine the structure fish community Gusung Batu Lampe, Badak. A survey was carried out through scuba diving activities, using video belt transect method at 10 points. observed were identified genus level and analysis form diversity, uniform...

Introduction: Scuba diving is an important marine tourism sector, but requires proper safety standards to reduce the risks and increase accessibility to its market. To achieve safety goals, safety awareness and positive safety attitudes in recreational scuba diving operations are essential. However, there is no published research exclusively focusing on scuba divers' and dive centres' perceptio...