The biology of impact craters – a review

first_imgImpact craters contain ecosystems that are often very different from the ecosystems that surround them. On Earth over 150 impact craters have been identified in a wide diversity of biomes. All natural events that can cause localized disruption of ecosystems have quite distinct patterns of recovery. Impact events are unique in that they are the only extraterrestrial mechanism capable of disrupting an ecosystem locally in space and time. Thus, elucidating the chronological sequence of change at the sites of impacts is of ecological interest. In this synthetic review we use the existing literature, coupled with our own observations at the Haughton impact structure, Devon Island, Nunavut, Canada to consider the patterns of biological recovery at the site of impact craters and the ecological characteristics of impact craters. Three phases of recovery are suggested. The Phase of Thermal Biology, a phase associated with the localized, ephemeral thermal anomaly generated by an impact event. The Phase of Impact Succession and Climax, a phase marked by multiple primary and secondary succession events both in the aquatic realm (impact crater-lakes) and terrestrial realm (colonization of paleolacustrine deposits and impact-generated substrata) that are followed by periods of climax ecology. In the case of large-scale impact events (> 10(4) Mt), this latter phase may also be influenced by successional changes in the global environment. Finally, during the Phase of Ecological Assimilation, the disappearance of the surface geological expression of an impact structure results in a concomitant loss of ecological distinctiveness. In extreme cases, the impact structure is buried. Impact succession displays similarities and differences to succession following other agents of ecological disturbance, particularly volcanism.last_img read more

Magdalen College library to host exhibition celebrating the “early pioneers of diversity at Oxford”

first_imgCurators include Univ librarian Elizabeth Adams, Magdalen librarian Daryl Green, and Associate Professor of English and Tutorial Fellow at Mansfield, Dr Michéle Mendelssohn. The exhibition is based on the latter’s biography of Oscar Wilde: Making Oscar Wilde. Magdalen College is showcasing the exhibition in the college’s Longwall Library. It is part of a pan-Oxford event series with involvement by Univeristy, Hertford, and Mansfield colleges alongside Magdalen. The exhibition will “draw these exceptional men together by “showcasing rare archives”. The college website states the aim as to “allow the public a unique glimpse at the documents and drawings that bear witness to these remarkable young men’s lives and times.” The exhibition – ‘Making History: Christian Cole, Alain Locke, and Oscar Wilde at Oxford’ – will focus on the three figures and their “shared histories” as “Oxford’s queer, black, and first generation undergraduates.” The event focuses on Christian Cole, the University’s first black African undergraduate, Alain Locke, the first African-American Rhodes Scholar and “godfather” of the Harlem Renaissance, and Oscar Wilde, the “great Irish wit and dandy”. Cole studied at University College, Locke at Herford, and Wilde and Magdalen. center_img The exhibition will begin with with a free launch party and salon with the curators on 9 May at Magdalen. It runs until October, and is available to all College members as well as to visitors by appointment. For more information, click here. Other events include lectures on Alain Locke and Christian Cole and a “Black Oxford walking tour”, inspired by Pamela Roberts’s book Black Oxford.last_img read more

Sandwich sales are boosted by consumer focus on health

first_imgThe expansion of sandwich bars and the trend for healthy eating has turned sluggish performance in the sandwich market between 2002 and 2006 into an estimated 9% rise in the last year, says a new report.Research from Mintel estimates the market will be worth more than £4 billion this calendar year, up from £3.3bn in 2002. And it forecasts a 27% expansion between 2007 and 2012, taking sales to around £5.2bn.Vivianne Ihekweazu, senior market analyst at Mintel, said: “The sandwich market has turned itself around. Having successfully tapped into the trend for healthy eating, it is now clearly reaping the rewards.” The availability of superfood and wheat-free varie-ties, coupled with a greater range of fillings, helped to boost sales.But the Mintel report, entitled Sandwiches, published last week, warned that “after three to four years, the focus will need to be a continuous increase in value sales, as the competitive environment – both within the sandwich category and outside it – is becoming very intense”. It added: “More consumers may choose salads and fewer carb-rich options, as health becomes a major focus. The amount of salt in these products may also come under increasing scrutiny.”Takeaway sandwiches dominated the market, accounting for £3.8bn-worth of sales in the last year, said Mintel, while eat-in sales represented just 6% at £229m.Mintel also found a change in adults’ bread preferences, with white bread down from 65.3% in 2003 to 52.4% in 2007. Meanwhile healthier types were increasingly favoured, with brown up 5.9%, Granary up 6.5% and wholemeal up 7.6% over the same period.’Eat me, keep me’ deals, where one sandwich is bought for immediate consumption and another to keep and eat later, could make the most of the trend towards longer working hours, added the report.last_img read more

Needham expands food-grade printer range

first_imgA new range from Needham Coding includes specialist food-grade, ultra-violet, heavy pigment and small character models.Sheffield-based Needham has expanded its ‘N’ series of own-brand continuous inkjet printers (CIJ), which it describes as ideal for global food, beverage, security and industrial applications.The company has also added several models for specialist global food-grade, ultra-violet, heavy pigment and small character applications.The new N32 FG is a food-grade CIJ printer “specially designed for harsh production environments and for use with food-grade inks supplied by sister company, Needham Inks Limited”.“Compatible with FDA, EU and other compliant inks, the N32 FG is capable of printing directly on to food products, such as eggs, fruit and vegetables, or permeable packaging.”The N32 P is a heavy pigment industrial printer “for operation with a range of heavy pigment inks available in various colours and specifications. It enables dark substrates to be printed with bright, high-contrast yellow and white inks.”The N32 UV CIJ printer has been developed to meet the demands of hidden security and traceability applications. It prints invisible codes that are made visible when exposed to UV light. “The clear, UV readable and fast-drying ink offers excellent adhesion on most surfaces, is alcohol resistant and steam sterilisable, making it ideal for security coding, cosmetics and pharmaceuticals.”Needham’s N32 M is a small character inkjet print which accurately and reliably prints from 0.6mm up to 10mm image heights. “It operates at speeds of up to 400 metres per minute and features an IP65 rated enclosure making it suitable for high-pressure washdown.”last_img read more

Holiday Favorite.

first_img As you enjoy Thanksgiving dinner, just think of the way sweet potatoes have changed lives over the globe. Photo: Wayne McLaurin I never ate a sweet potato I didn’t like.Turkey and green beans (my children’s favorites), are holiday foods from the Americas. My own Thanksgiving favorite, the sweet potato — or as some call it, the yam — is another New World food.Growing up with the greatest cook in the world, we learned early to eat pretty much everything. In the blending of French, Italian, Creole and Cajun, though, there was always true “Southern cooking,” which involved sweet potatoes.French Fried for BreakfastMamma fixed them french fried for breakfast with cinnamon and brown sugar. For other meals, she baked, boiled or candied them with marshmallows, made mouth-watering pies and also sweet-potato chips. We also ate many cold sweet potatoes as a snack after getting in from school.My favorites, however, were the sweet-potato surprises. They were made from baked sweet potatoes that Mamma mashed with spices and rolled into golf-ball-size pieces. A depression with her thumb into the ball gave the right amount of space to insert one or two miniature marshmallows.Mamma then reformed the ball, rolled it in fresh-grated coconut and chopped pecans and baked it until the outside was crusty and the marshmallow melted inside.Sweet Potatoes or Yams?We called our sweet potatoes yams because the variety we grew was the Puerto Rican type that was moist-fleshed and very sweet. The name “sweet potato” and “yam” have been used interchangeably over the years.Actually, the African word nyami, referring to the starchy, edible root of the Dioscorea genus of plants, was adopted in its English form, yam.This plant has a very starchy, nonsweet tuber very unlike the moist-fleshed sweet potato (Ipomoea batatas). The National Society of Horticulture Science now refers to our “yam” as sweetpotato — one word (but dictionaries still list it as two words).High in Vitamin AThe sweet potato is high in carbohydrates and vitamin A. It has an abundance of uses. We cook the leaves like greens. And besides eating the roots all those wonderful ways, we process them into snacks and candy for people, feed for animals, starch, flour, alcohol and a variety of industrial products.Sweet potatoes yield very well under a wide range of environmental conditions. They can produce more edible energy per acre per day than wheat, rice or cassava.Ranking seventh in total production among global food crops, more than 95 percent of the world’s sweet potatoes are grown in emerging countries, typically by small-scale farmers and often in marginal areas. In developing countries, it is the fifth most important food crop and is grown more than any other root crop.A History of Saving LivesThis hardy root crop has a long history of saving lives. The Japanese have repeatedly relied on it after typhoons have devastated rice crops. Sweet potatoes kept millions from starvation in famine-plagued China in the early 1960s. And in Uganda, where a virus ravaged cassava crops in the 1990s, rural communities depended on sweet potatoes to keep hunger at bay.In the densely populated, semiarid plains of eastern Africa, the sweet potato is called cilera abana, “protector of the children.” The sweet potato is now the latest great hope in the war on blindness, too.In Africa, 3 million children under 5 years old suffer blindness or some form of degenerative eye disease due to a lack of vitamin A in their diet. Scientists have spent the past decade breeding orange-flesh, high-vitamin-A sweet potatoes to suit Africans’ taste.As you enjoy Thanksgiving dinner, just think of the way sweet potatoes have changed lives over the globe.last_img read more

Mitsui considering sale of Australia coal mine stake

first_img FacebookTwitterLinkedInEmailPrint分享ET Economic World:Japanese trading firm Mitsui & Co Ltd may sell its stake in an Australia thermal coal mine in the face of growing pressure to divest coal assets amid mounting concerns over climate change, its chief executive officer said on Wednesday.“We’ve made it clear that we won’t invest in new thermal coal mining projects,” Mitsui President and Chief Executive Officer Tatsuo Yasunaga told analysts. “We will consider selling our stake in an Australian mine which produces only thermal coal if there is a good opportunity,” he said.The trading company has said it would trim its thermal coal assets in the long term amid growing pressure worldwide for companies to cut reliance on the fossil fuel, but would continue to invest in coking coal – a key raw material for steel-making.Rival Marubeni Corp said in September that it would halve its net coal-fired power generating capacity by 2030 to reduce its greenhouse gas emissions.Under a goal unveiled in July, Mitsui also aims to double the ratio of power generating capacity from renewable energy to 30 percent in its total capacity by 2030 while cutting the portion of coal-fired power. Mitsui’s total net power generating capacity stood at 9.1 GW as of September, with coal-fired power accounting for 22 percent, gas-fired power 62 percent and renewable 16 percent.More: Japan’s Mitsui may sell stake in Australia thermal coal mine Mitsui considering sale of Australia coal mine stakelast_img read more

Lou Reed, Velvet Underground Founder, Dead At 71

first_imgSign up for our COVID-19 newsletter to stay up-to-date on the latest coronavirus news throughout New York Lou Reed, the singer/songwriter/guitarist who redefined rock and roll with the Velvet Underground, died Sunday at his home in Southampton, according to his publicist, losing a battle with liver disease. He was 71 years old.Born in Brooklyn and raised in Freeport, Reed founded the Velvet Underground in 1965 with musician John Cale. Known for their experimental, often haunting and sonically crushing art-punk-noise that came to define and embody the image, attitude and darker elements of ’60s counterculture New York, the Velvet Underground, though not commercially successful during its time, ranks as one of the most influential groups in rock and roll history, and Reed the scene and genre’s outlaw poet laureate.The band was infamously managed by Andy Warhol and house band at his Factory.Reed’s solo career spans decades and more than two dozen albums since his departure from the Velvets in the early 1970s, including such hits as the addictively gritty “Walk On The Wild Side” in 1972 and among his most recent projects, 2011’s spoken-word metal-noise album Lulu with Metallica.Reed’s songs encompass subjects ranging from love and drugs to sex and street life, delivered with an intimacy and visceral clarity that thread even the most tragic and depressive storylines with strands of pure beauty. They are sincere, honest. They bleed life.Artists, writers and musicians from Salman Rushdie to the Pixies posted online tributes to the late, great rock innovator and pioneer across social media sites Sunday, with the latter Tweeting: “R.I.P. LOU REED….A LEGEND”“The world has lost a fine songwriter and poet,” Tweeted Cale. “I’ve lost my ‘school-yard buddy.’”last_img read more

Facility Solutions: Attracting branch visits

first_img continue reading » ShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr Last month, a family-owned bank requested a proposal to create a new branch prototype and brand experience that would entice current and potential customers to visit its branches. Yes, to increase rather than decrease visits to branches. The bank’s rationale is that 1) it cannot compete online with big market players, including a number of sophisticated and well branded credit unions; 2) its leadership is worried about future alternative financial providers that have customer-attracting and retaining inroads through heavy online promotion and consumer retail locations; 3) it needs to engage small business owners at the street level; 4) it must provide appropriately enhanced locations for providing wealth management services; and 5) it wants to buck the trend of branch closures with highly engaging retail centers in markets with below-average transaction migration. The newly designed branches will be a tangible way to promote its brand while the more unknown impacts of evolving technology and customer preferences plays out.While this strategy seems to fly in the face of current thinking, there are a number of exceptionally well-branded branch models across the country that have succeeded in creating powerful bonding experiences and planting the brand experience in the subconscious.Capital One’s advertising, which often includes images of its cafés, is a prime example of how the physical experience as well as the branch media experience is used to create a hook or platform upon which to build additional experiences. The physical branch experience is often the most connective to members due to its visceral nature. The visual experience through advertising may be less impactful, but it is controllable and a fraction of the cost per viewer, making the remote image as valuable as the in-person experience. This suggests the cost of developing a strong image in the branch and projecting it online may be as valuable or more so than the physical location. With these images, we are creating good feelings—rather than conveying facts—which is more effective for mass marketing.last_img read more

Tory Burch Just Marked Down So Many Cult-Favorite Boots & Bags

first_imgUs Weekly has affiliate partnerships so we may receive compensation for some links to products and services.Black Friday apparently came early — well, at least in Tory Burch’s case. The beloved brand just marked down so many amazing items — and yes, that includes some cult classics that rarely (if ever) hit the sale rack!- Advertisement – See it!Get the Brooke Knee Boot (originally $498) on sale with free shipping for just $369 at Tory Burch!These Sleek Heeled Ankle BootsKira BootKira Boot Tory BurchThese buttery smooth suede boots can elevate a staple combo of jeans and a sweater to new heights. See it!Get the Kira Boot (originally $398) on sale with free shipping for just $299 at Tory Burch!These Trendy Leather BootsMiller Lug Sole BootMiller Lug Sole Boot Tory BurchFeel like a rock star in these edgy, high-heeled black booties. They’re giving us Rick Owens vibes — chic! See it!Get the Miller Lug Sole Boot (originally $428) on sale with free shipping for just $319 at Tory Burch!This Small Crossbody ToteGemini Link Canvas Small Top-Zip Tote BagGemini Link Canvas Small Top-Zip Tote Bag Tory BurchYou can rock this miniature version of the iconic Gemini tote in two ways: as a crossbody or a shoulder bag! See it!Get the Gemini Link Canvas Small Top-Zip Tote Bag (originally $228) on sale with free shipping for just $169 at Tory Burch!This Mini Hobo BagMiller Metal-Logo Mini HoboMiller Metal-Logo Mini Hobo Tory BurchThe hobo bag obsession that dominated the mid-200os is officially back, and Tory Burch updated the style with this sophisticated purse. See it!Get the Miller Lug Sole Boot (originally $498) on sale with free shipping for just $299 at Tory Burch!These Bright Logo Flip Flops Minnie Flip-FlopMinnie Flip-Flop Tory BurchWhy wear plain flip flops when you can get a bright, standout pair like these? See it!Get the Minnie Flip-Flop (originally $98) on sale with free shipping for just $79 at Tory Burch!This Adorable Printed Zip-Top ToteGemini Link Canvas Top-Zip Tote BagGemini Link Canvas Top-Zip Tote Bag Tory BurchWe are completely in love with the oversized Gemini Link print on this terrific tote! Plus, this version has a zipper for extra protection. See it!Get the Gemini Link Canvas Top-Zip Tote Bag (originally $328) on sale with free shipping for just $249 at Tory Burch!This Simple Leather Flap ClutchMiller Metal-Logo ClutchMiller Metal-Logo Clutch Tory BurchThis is the definition of an elegant evening purse. It will look great with any dress you team with it! See it!Get the Miller Metal-Logo Clutch (originally $278) on sale with free shipping for just $209 at Tory Burch!This Quilted Crossbody Kira Chevron Textured Small Camera BagKira Chevron Textured Small Camera Bag Tory BurchThis is the ideal compact crossbody to wear on a dinner date. Gorgeous! See it!Get the Kira Chevron Textured Small Camera Bag (originally $378) on sale with free shipping for just $259 at Tory Burch!This Organizational TotePerry Triple-Compartment Tote BagPerry Triple-Compartment Tote Bag Tory BurchThis purse has three different compartments so you can keep everything you need in its place. See it!Get the Perry Triple-Compartment Tote Bag (originally $348) on sale with free shipping for just $239 at Tory Burch!Looking for more? Check out all of the latest markdowns and shop all of the clothing, handbags and accessories at Tory Burch!Check out more of our picks and deals here!This post is brought to you by Us Weekly’s Shop With Us team. The Shop With Us team aims to highlight products and services our readers might find interesting and useful, such as face masks, self tanners, Lululemon-style leggings and all the best gifts for everyone in your life. Product and service selection, however, is in no way intended to constitute an endorsement by either Us Weekly or of any celebrity mentioned in the post.The Shop With Us team may receive products free of charge from manufacturers to test. In addition, Us Weekly receives compensation from the manufacturer of the products we write about when you click on a link and then purchase the product featured in an article. This does not drive our decision as to whether or not a product or service is featured or recommended. Shop With Us operates independently from advertising sales team. We welcome your feedback at [email protected] Happy shopping! From boots, to crossbody bags, to top-selling totes, we rounded up our favorite pieces that are sure to sell out quickly. What are you waiting for? It’s Tory time!These Suede Ankle BootiesBrooke Suede Ankle BootBrooke Suede Ankle Boot Tory BurchThese Chelsea-style boots have a low heel that you can wear all day long.- Advertisement – – Advertisement –center_img See it!Get the Brooke Suede Ankle Boot (originally $398) on sale with free shipping for just $299 at Tory Burch!These Knee-High BootsBrooke Knee BootBrooke Knee Boot Tory Burch- Advertisement – Riding boots are simply timeless, and this is a pair you’re bound to treasure for years to come.last_img read more