Womersleyella setacea (Hollenberg) R.E. Norris (Rhodophyta, Ceramiales) is an invasive macrophyte in the Mediterranean Sea, first recorded from the coast of Italy in 1986. This is a review of the geographic distribution and depth limits of W. setacea invasion in the Adriatic Sea since its first record in 1997. Algal turfs were collected and examined from different locations in the Croatian part...

We report the first detection of the lowest CO transition in a sub-millimetre bright galaxy and extremely red object (ERO) at z = 1.44 using the Very Large Array. The total J = 1− 0 line luminosity of EROJ164502+4626.4 is (7± 1)× 10Kkms pc, which yields a total molecular gas mass of ∼ 6×10M⊙ . We also present a map of the 850-μm continuum emission obtained using SCUBA, from which we infer a far...

We present an algorithm for underwater robots to visually detect and track human motion. Our objective is to enable human-robot interaction by allowing a robot to follow behind a human moving in (up to) six degrees of freedom. In particular, we have developed a system to allow a robot to detect, track and follow a scuba diver by using frequencydomain detection of biological motion patterns. The...

history of underwater diving dates back to antiquity. breath-hold technique in diving was known to the ancient nations. however, deep diving progressed only in the early decades of the 19 th century as the result of advancements in efficient underwater technologies which subsequently led to invention of sophisticated sets of scuba diving in the 20 th century. currently, diving is performed for ...

We present observations taken with the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT) of the Horsehead Nebula in Orion (B33), at wavelengths of 450 and 850 μm. We see bright emission from that part of the cloud associated with the photon-dominated region (PDR) at the ‘top’ of the horse’s head, which we label B33-SMM1. We characterise the physical p...

We present a complete survey of current star formation in the Perseus molecular cloud, made at 850 and 450 μm with SCUBA at the JCMT. Covering 3 deg2, this submillimetre continuum survey for protostellar activity is second in size only to that of ρ Ophiuchus (Johnstone et al. 2004). Complete above 0.4 M⊙ (5σ detection in a 14 beam), we detect a total of 91 protostars and prestellar cores. Of th...

The features of respiratory noises and fins for open-circuit scuba divers, indicating a multipole character emission, are specified in cameral conditions. It demonstrates possibility to detect low-frequency components with pressure gradient sensor near field. A estimating the rate an diver is demonstrated at distances up 100 m real sea. gives opportunity bearing (time delay pair hydrophones) by...

Despite meiofauna being one of the most popular tool for detecting the ecological effects of different sources of impact, the application of structured experimental designs to this benthic component is typically neglected, especially in subtidal rocky shores. In this study, an asymmetrical design was used to detect hard-bottom meiofaunal abundance and biodiversity response to sewage discharge. ...