Non-destructive photographic techniques are valuable for surveying benthic epifauna in sensitive areas. Inherent in these techniques, however, are selectivity biases related to the scale at which surveys are conducted. Such biases have not been addressed for surveys of marine benthos. The present study surveyed epifaunal assemblages at two depths (8 m and 20 m) and three locations close to Rothera Point, Adelaide Island, Antarctica. Two scales of photographic sampling were employed in order to encompass a broad range of taxon sizes and distributions, and their parallel use allowed qualitative and quantitative comparisons to be made between results from each scale. An additional physical sampling element was incorporated to assess sessile cryptic assemblages. A total of 79 faunal taxa from 10 phyla, together with 6 algal taxa, were recorded in the survey. Echinoderms were the most speciose group at both photographic scales, whereas cryptic assemblages were dominated by bryozoans. There were clear resolution-related differences between scales but all three methods revealed pronounced differences in assemblages by depth and location. Assemblages at both depths were notable for consistently high densities (~100 individuals m–2) of the regular echinoid Sterechinus neumayeri, and at 8 m for high densities (~100 individuals m–2) of the limpet Nacella concinna. The results emphasise the general requirement for sampling methodologies to be matched to the size spectra of the organisms under study and, more specifically, highlight the need for studies to assess the relative importance of biotic and physical factors in structuring the Antarctic benthos.
ShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr continue reading » As consumer demand for more online banking services grows, fraudsters are finding more and more ways to exploit these services. While not a new scheme, online account origination fraud has grown in part because of the prevalence and ease of use of online banking services, and in part because of the number and scope of data breaches allowing bad actors access to a large amount of consumer data.In this blog post, we’ll discuss common tactics used in online account origination (OAO) fraud, and controls that can help prevent losses.Common tacticsOften, fraudsters use stolen identities and banking information to perpetrate fraud when opening new accounts online. The use of real information can make this type of fraud much more difficult to detect, especially because of the relative anonymity associated with online banking.
Sign up for our COVID-19 newsletter to stay up-to-date on the latest coronavirus news throughout New York A Hempstead man with a history of seizures has been charged with manslaughter for allegedly ignoring medical advice to not drive before a crash that killed his 27-year-old partner and 4-year-old son two years ago, Nassau County prosecutors said.Renen Vides pleaded not guilty Monday at Nassau County court to charges of second-degree manslaughter, reckless endangerment, reckless driving and driving without a license.“In spite of repeated warnings and repeated seizures, the defendant recklessly drove anyway, risking everyone in his path,” Acting Nassau County District Attorney Madeline Singas said.Prosecutors said the 29-year-old man was driving his Mitsubishi Galant eastbound on Old Country Road when he veered off the road and struck a tree front of the Source Mall in Westbury shortly before noon on Sept. 29, 2013.Two passengers in the car—his common-law wife, Martha Candida Hernandez Majano, and his son, Renen Vides Jr.—died at the scene.The driver wasn’t taking his prescribed seizure medication, was having seizures in the months leading up to the crash and lost consciousness immediately prior to hitting the tree, authorities said.A grand jury indicted Vides on March 30 following a lengthy and investigation. Garden City police officers who pulled him over Friday for driving without a front license plate took him into custody after finding that he had a warrant for his arrest.Judge Philip Grella set bail for Vides at $250,000. If convicted, he faces up to 15 years in prison. He is due back in court Sept. 2.
Share StumbleUpon Submit Share “The right tool for the job” is a popular adage in the online betting industry, writes Erlang Solutions CEO Stuart Whitfield. In seven years at Erlang, I’ve learned that there are three key reasons why Erlang and Elixir are often the right tool for the job in online gambling and betting: superior concurrency, scalability, and reliability.bet365 has more than 22m customers, making it the world’s largest online gambling company, with reports suggesting that up to three-quarters of its £1.5bn revenues come from international markets. Extreme scalability, concurrency, and reliability is a must to keep bet365’s engines turning. bet365 lives by the mantra the right tool for the job, and runs a mix of Erlang, Elixir, and Go in production. So when and where should you choose Erlang, Elixir or Go in your betting stack?ConcurrencyAt any one time bet365’s systems are serving many hundreds of thousands of users live odds and results, while managing multiple data streams on the backend. In peak times, like the Super Bowl or the Grand National, the number of users swells by an order of magnitude. This is an awesome feat of concurrent engineering. When it comes to concurrency, Erlang and Elixir, both built on the BEAM virtual machine, excel. They are both concurrency oriented functional languages, built to handle vast numbers of users at the same time. Users of Erlang across verticals as diverse as telecoms, adtech; financial payments; massive multiplayer online role playing gaming; and social media have all exploited its ability to provide impressive concurrency.Go also offers good support for concurrency, especially when comparing it to Ruby, Python, or C++. However, is not an alternative to Erlang or Elixir for backends where availability and low latency for high numbers of concurrent requests is required, as in online betting.ScalabilityModern betting infrastructures demand massive scalability, speed, and fault tolerance to run smoothly. Without scalability built into the system, operators can be left to rely on additional hardware to scale vertically, which is not a sustainable nor a cost effective approach. Erlang and Elixir’s abilities around concurrency go hand-in-hand with their massive scalability. If Erlang isn’t the best tool for every job your system has, a distributed architecture that can plug into Erlang-based products can make your betting system quick to deploy and scale elastically. Tools built in Erlang, such as Riak KV, scale out, up and down predictably. Say goodbye to the headache of emergency hardware and unpredictable system performance under severe load.When you pit Go’s requests per seconds against the likes of Ruby on Rails or Django, Go returns some impressive benchmarks performing three times better. Go can scale to hundreds of thousands with relative ease, in much the same way that Erlang and Elixir scale to millions. ReliabilityLike the stock market, downtime for an online betting operator has immediate financial and reputational consequences. For online sports betting the provision of a ultra-reliable, real-time service is now a priority for bookmakers and punters alike. Just look at the booming in play market for sports events. In this world, pauses of any kinds, for system failure, garbage collection, or queuing backlogs, are not acceptable. Online betting stacks must handle their constant torrents of data without impacting the system’s processes, or end users. Erlang and Elixir’s concurrency, no-shared memory architecture and built-in ‘fail and recover’ approach make them behave extremely gracefully and predictably under highly variable stochastic load. In fact, Erlang can support data changing at four times other languages’ rate. This makes Erlang and Elixir ideal to build critical gambling and betting systems on.Go is tooled very well, but some of its automated triggers can cause errors, jeopardising server code that is supposed to reply immediately. This in turn can harm its overall reliability in comparison to Erlang and Elixir.Join Chandru Mullaparthi, former Head of Software Architecture at bet365 and Chairman of the Erlang Industrial User Group at the London Erlang User Group, where he will draw on his experience to Build the ideal betting stack (Wednesday 11 October, 18:30 BST, Erlang Solutions HQ).Erlang SolutionsErlang Solutions specialises in giving business truly scalable solutions through the creation, integration, delivery, and lifetime support of products and services based on the Erlang programming language. Four of the world’s top bookmakers currently look to Erlang Solutions for technical know-how. Learn more about Erlang Solutions’ work in the online gambling & betting industry.