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\"Discover the secret origins of the Triceratons: how they began on Earth, what that means for their return, and how they successfully rebelled against their Utrom captors! Plus, the Turtles fight to save their city, but become trapped in tight quarters when NYC is evacuated. Will they find a way to freedom without driving each other crazy? Then, Raphael and Alopex go undercover at Null Industries where they find more than they bargained for, including very angry mutants!\" --Amazon.com.
Book
Black carbon footprint of human presence in Antarctica
Black carbon (BC) from fossil fuel and biomass combustion darkens the snow and makes it melt sooner. The BC footprint of research activities and tourism in Antarctica has likely increased as human presence in the continent has surged in recent decades. Here, we report on measurements of the BC concentration in snow samples from 28 sites across a transect of about 2,000 km from the northern tip of Antarctica (62°S) to the southern Ellsworth Mountains (79°S). Our surveys show that BC content in snow surrounding research facilities and popular shore tourist-landing sites is considerably above background levels measured elsewhere in the continent. The resulting radiative forcing is accelerating snow melting and shrinking the snowpack on BC-impacted areas on the Antarctic Peninsula and associated archipelagos by up to 23 mm water equivalent (w.e.) every summer.
The snow surrounding research facilities and shore tourist-landing sites in Antarctica was found to be darker than elsewhere in the continent, which suggests that local emissions of black carbon are accelerating seasonal snowmelt in impacted regions.
Journal Article
Antarctic ice-shelf meltwater outflows in satellite radar imagery: ground-truthing and basal channel observations
Ice shelves regulate the flow of the Antarctic ice sheet toward the ocean and its contribution to sea-level rise. Accurately monitoring the basal and surface melting of ice shelves is therefore essential for predicting the ice sheet's response to climatic warming. In this study, we utilize Sentinel-1A synthetic aperture radar satellite imagery combined with shipboard measurements of water temperature and salinity to investigate the presence of surficial meltwater plumes along the Antarctic coastline. Our approach reveals a strong correlation between areas of pronounced low radar backscatter extending from ice shelves and significant decreases in water temperature and salinity, suggesting meltwater-enriched ocean waters. We propose that the low radar backscatter signature of meltwater outflows is caused by stable stratification of the upper water column, driven by density contrasts from buoyant, low-salinity meltwater and surface current shear that reduce Bragg scattering waves. The resulting smooth water surfaces were observed adjacent to the surface expression of deep basal channels, documented in a helicopter survey along part of the Bellingshausen Sea ice edge. We present high-temporal resolution satellite radar as a tool for identifying meltwater release from beneath ice shelves, capable of all-weather, day-and-night imaging.
Journal Article
Development of Hybrid Artificial Intelligence Training on Real and Synthetic Data: Benchmark on Two Mixed Training Strategies
Synthetic data has emerged as a cost-effective alternative to real data for training artificial neural networks (ANN). However, the disparity between synthetic and real data results in a domain gap. That gap leads to poor performance and generalization of the trained ANN when applied to real-world scenarios. Several strategies have been developed to bridge this gap, which combine synthetic and real data, known as mixed training using hybrid datasets. While these strategies have been shown to mitigate the domain gap, a systematic evaluation of their generalizability and robustness across various tasks and architectures remains underexplored. To address this challenge, our study comprehensively analyzes two widely used mixing strategies on three prevalent architectures and three distinct hybrid datasets. From these datasets, we sample subsets with varying proportions of synthetic to real data to investigate the impact of synthetic and real components. The findings of this paper provide valuable insights into optimizing the use of synthetic data in the training process of any ANN, contributing to enhancing robustness and efficacy.
Paper
Home Sales in 2003 Break Records in South Carolina
Statewide, 50,098 homes were sold in 2003, up 15.6 percent from 2002. The median price of a home was $136,000, an increase of about 10 percent from 2002. Charleston and Greenville saw an even greater rise in home sales in 2003, up about 21.1 percent in Charleston and about 24.4 percent in Greenville. The wealthy retirement-vacation enclave has, by far, the most expensive homes in the state. The median price for Hilton Head homes in 2003 was $407,000, up 46.2 percent from the previous year.
Newsletter
Columbia, S.C., Sees Drop in Downtown Office Vacancy Rate in 2003
Expansions by law firms Nelson Mullins Riley & Scarborough, Rogers Townsend & Thomas and others contributed to the increase in occupancy, said David Lockwood, Colliers Keenan's vice president of leasing. \"In areas such as the Northeast and St. Andrews, where there is a lot of residential growth, what follows house construction is office construction,\" Lockwood said. \"We've seen more leasing in these buildings, but not enough yet to raise occupancy rates.\" Occupancy rates in Columbia are expected to rise in 2004, Lockwood said. \"But the Meridian aside, the good thing about Columbia is that there's not much speculative building,\" he said. \"So when we see more job growth, we will also see the occupancy rate jump.\" In Greenville, where the economy also has been hurt by lost manufacturing jobs, the overall office occupancy rate fell to 76.1 percent at the end of 2003, down from 78 percent the previous year.
Newsletter
Truckers Adjust to New Length-of-Shift Rules
[Linda Ballington] said she was particularly upset that the time drivers wait inside her truck -- during loading and off-loading, for example -- will count against their overall shift, which has been cut by an hour to 14 hours. \"This a package that our members can work with,\" said Bill Graves, president of the American Trucking Associations, when the new rules were published in April. \"These new guidelines will allow the trucking industry to do what we do best -- move American's freight safely and efficiently.\" The new rules will save 75 lives and prevent 1,320 crashes annually, estimates the Transportation Department's Federal Motor Carrier Safety Administration. \"The rules are a step backward for safety, and drivers will be logging more hours behind the wheel,\" said Jackie Gillan, vice president of the Advocates for Highway and Auto Safety, a group based in Washington, D.C. \"Truck driving is the most dangerous occupation in the country, and we should be getting drivers to log less hours behind the wheel -- not more.\" Under the new rules, drivers can drive up to 11 consecutive hours, one more than before.
Newsletter
Wal-Marts, Kmarts Host Santas to Lure Shopper from Mall
\"It's a good thing for business during the holidays,\" said Andrea Stiles, co-manager of the Wal-Mart on Forest Drive. \"Generally, all kids like Santa.\" Santas will be dropping by 2,966 Wal-Marts nationwide, following a successful trial run last year. This is the second year in a row he'll be at Kmart Holding Corp.'s 1,500 stores. The International Council of Shopping Centers, a New York-based trade group, says [Santa Claus] drew an average of 8,758 children per mall last year. But according to Wal-Mart officials, Saturday's nationwide Santa extravaganza was not conceived as a marketing tool to draw new customers. Department stores and malls boast that their Santas are more professional. A Santa is more than a guy in a red suit, said Judy Noerr, president of Noerr Programs Corp., a Golden, Colo., promotions company that supplies nearly 200 malls with Santas. Her company's Santas undergo hours of training, she said, and most sport natural beards.
Newsletter
Solid Sales Cheer Columbia, S.C., Retailers
The strongest magnets luring shoppers were low-priced electronics, such as DVD players and digital cameras, along with such toys as Barbie and Hokey Pokey Elmo dolls, said Ellen Tolley of the National Retail Federation. \"Those two categories seem to be driving shoppers into the stores,\" she said. \"Once they got there, they picked up apparel, books and other gifts.\" Striking another high note, Bentonville, Ark.-based Wal-Mart Stores Inc., the world's largest retailer, said sales hit $1.52 billion at its U.S. Wal-Mart stores, Supercenters and Neighborhood Markets on Friday, a single-day record and a 6.3 percent increase over the prior year. That's another indicator discounters such as Wal-Mart and Minneapolis-based Target Stores are likely to lead the retail pack again this year, [Michael Niemira] said. \"The Wal-Mart strength is part and parcel of the ongoing story of discounters picking up market share,\" he said. An earlier survey by the National Retail Federation showed that 75 percent of those polled planned to shop in discount stores this holiday season.
Newsletter