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The Senate planned to give final congressional approval Monday evening to a 10 year extension of the prohibition against guns that can slip past metal detectors and X ray machines. The quarter century old ban has been renewed twice and would expire Tuesday without action. Some plastic guns meet the letter of current law with a metal piece that can be removed, making them a threat to be slipped past security screeners at schools, airports and elsewhere..

Lindsay and Michael Lohan pose for photogs in 2002. (Getty Images) To paraphrase Keanu Reeves in “Parenthood,” you need a license to buy a dog or to drive a car, but any [expletive] can be a father. Lists of rocking celebrity dads abound. Reports it is considering a dual listing in the US sent its shares soaring 12.9 per cent to $9.80.Larger rival Afterpay hit a record high of $156.50 in intraday trade before pulling back to $153.46, up 1.43 per cent.Sigma Healthcare leapt 7.35 per cent to 73 cents after flagging a jump in full year earnings following a strong second half performance. The company also said it expected to achieve its previously stated 2023 target.Mining stocks fared well on the back of largely higher commodities prices.Lithium and iron ore miner Mineral Resources leapt 5.63 per cent to $36.94, rare earths producer Lynas put on 7.14 per cent to $5.25 and mineral sands miner Iluka Resources advanced 4.91 per cent to $6.84.Mining stocks drove the ASX gains. Picture: Lyndon Mechielsen/The AustralianSource:News Corp AustraliaNewcrest, Australia largest gold producer, added 1.37 per cent to $25.21.Ora Banda Mining put on 1.67 per cent to 30.5 cents after reporting its first gold pour at the Davyhurst mine in Western Australia, which closed in 2018 after its previous owner collapsed.While iron ore prices have backtracked over the past two weeks due to weak Chinese steel margins, it is too early to get bearish Macquarie researchers say.Due to a lack of supply growth, iron ore will remain a deficit market this year even under very conservative demand assumptions, they say.Fortescue Metals Group was up 2.11 per cent at $23.72, Rio Tinto rose 3.42 per cent to $117.20 and BHP firmed 2.37 per cent to $44.84.ANZ climbed 0.44 per cent to $25.40, Commonwealth Bank inched 0.02 per cent lower to $88.62, National Australia Bank lifted 0.91 per cent to $25.46 and Westpac was up 1.35 per cent at $22.45..

The beachface evolution in the swash zone under different single swash events is investigated by fully coupled simulations. Two fully coupled models (bed load only and combined load models) comprising the one dimensional shallow water equations and bed evolution equation are developed. The two coupled systems are solved by the specified time interval method of characteristics (STI MOC) (Kelly and Dodd, 2009, 2010), which can resolve shocks very accurately.The fully coupled bed load only simulations with six different sediment transport formulae for a single Peregrine and Williams (2001) (PW01) swash over an erodible plane beach all yield net erosion all over the swash zone.