Time-trends in the pattern of ocean-atmosphere exchange in an ice core from the Weddell Sea sector of Antarctica

first_imgThe east coast of the Antarctic Peninsula is strongly influenced by air masses that have traversed the Weddell Sea zone. A continuous record of annual-average values for δ18O, δD, Cl− and non sea-salt SO42− in snowfall deposited since 1795, has been obtained on an ice core drilled on Dolleman Island (70°35.2′S, 60°55.5′W). Chemical changes along the ice core seem to be linked to changes in the concentration of the ice cover in the marginal ice zone. In the period since 1956, these variations appear to be coupled to the atmospheric circulation, as indexed by the atmospheric pressure gradient across the marginal ice zone. The largest anomaly in the 200-year sequence occurs in the period 1820-1880, during the final stages of the Little Ice Age. Exceptionally high concentrations of Cl−, low concentrations of biologically-derived sulphate, and high deuterium excess suggest that at this time there was a dense, compacted marginal ice zone with cyclones tracking more frequently than normal across ocean areas to the north of the ice edge. During the past century, there has been a marked decrease in deuterium excess of about 4‰, which implies that there has been a progressively increasing contribution to precipitation from moisture sources at lower temperature, probably from within the marginal ice zone. The implication is that there may have been significant weakening of the ice cover in this zone during the past century, despite satellite evidence which reveals no significant change in the position of the ice edge, at least since 1973.last_img read more

Graduate Sets Up Iraqi Paper

first_imgAn Oxford chemistry graduate planning to launch the first English language newspaper in Iraq for more than a decade. The Baghdad Bulletin, the brainchild of Ralph Hassall, 23, is due to be published next month, with around 5000 copies printed, and plans for an online version to attract international readers are well underway. A number of key academics, journalists, and politicians, Arab and Western alike, have been approached to contribute. Ralph intends the Bulletin to act as a forum for Iraqis to discuss the future their country. “I want to get Iraqis talking about what should happen the country now the war is over: what should the billions of dollars promised in aid be spent on? Who should spend it and how?” he said speaking from Jordan. Not everyone may be so convinced of the validity of such an enterprise. James Lazou, a Wadham student who played a prominent role in the Oxford Students Stop the War Group, expressed his concern about the project to Cherwell. “I find the concept of an English language newspaper being the forum for Iraqis to debate their future, very worrying, and a reflection of wider colonialist attitudes to the country.” Mr Hassall, who admits to being “a patriot,” has embarked on a potentially very lucrative path. As former City media analyst Celia Leaberry explained, if the future of Iraq is secured, a national newspaper will very likely bid to take over the Bulletin. If, however, violence should break out again in Iraq, the fate of the paper looks less certain.ARCHIVE: 4th week TT 2003last_img read more

Early sale hope for M Firkin

first_imgAdministrators hope to complete the sale of craft bakery chain M Firkin as a going concern by the start of February.Administrators BDO Stoy Hayward said they are talking to a number of interested parties.The 136-year-old firm, which is the UK’s sixth-lar-gest bakery chain, with 53 shops, called in administrators on January 10, saying sales had been hit by strong competition in the bakery market.last_img

News story: Better detection of illicit goods in the post: apply for funding

first_imgCountering new threats of the modern world and protecting revenue on imported goods are a strategic priority for the UK government.Innovate UK is working with the Home Office and Border Force to invest up to £250,000 in projects that develop new ways of detecting illicit goods in letters and parcels arriving at UK borders. A further £1 million could be available to develop the best ideas in a second phase of the competition.Funding is provided by the GovTech Catalyst under the SBRI (Small Business Research Initiative) programme. Find out more about SBRI and how it works. Improving detection with no impact on the flow of goodsThe competition is looking for ways of improving detection in the current postal and fast-parcel areas.It is important that solutions have no effect on the flow of goods at the UK border.Projects should address one or more of the following challenges to: The GovTech Catalyst helps the public sector to use emerging technologies to improve public service efficiency and productivity. Get the latest information on the GovTech Catalyst. the competition opens on 3 December 2018, and the deadline for registration is at midday on 16 January 2019 it is open to organisations of any size in phase 1 we expect project costs to be up to £50,000 and to last up to 3 months successful projects in the second phase could receive up to £500,000 to produce and test a product for commercial use projects will be 100% funded a briefing event will be held in London on 3 December 2018 for applicants to find out more and how to submit a quality application Find out more about this competition and apply. reduce physical intervention in the scanning process, by using more automation increase how much can be scanned in a given period be more dynamic and adaptable Competition informationlast_img read more

UPDATED: Dopapod Teases Imminent Return Following Year-Long Hiatus

first_imgDopapod posted another update on Tuesday, January 22nd, as the rumor mill runs wild.The newly published comic reads, “December 31st, 2017. In the midst of Dopapod’s New Year’s Eve show at the Paradise Rock Club in Boston, a time warping portal mysteriously appeared, abducting the band into another dimension. Rumors quickly spread as fans speculated the whereabouts of the band. The portal has gone unseen for over a year. As fans began to lose hope, whispers of the portal reopening somewhere in the Northeast have been reported.” Following their 2017–2018 New Year’s Eve show, jam scene favorites, Dopapod, began a year-long hiatus. Comprised of guitarist Rob Compa, drummer Neal “Fro” Evans, bassist Chuck Jones, and keyboardist Eli Winderman, the band has a deep history dating back to 2007, with over 1,000 lives shows under their belts.Prior to going on hiatus, Dopapod shared, “Following seven years of ceaseless touring, the sabbatical is a blueprint for wellness borne from love and mutual respect amongst old friends. It’s a pre-emptive move of self-preservation inspired by the TED Talk, ‘The Power of Time Off’.”“Every seven years, this guy closes his design firm and everyone who works for the company works on their own projects for the year,” explained Eli Winderman. “When they come back, everyone is inspired and working with a newfound sense of excitement.”Today, Dopapod has updated their website and profile pictures on their social media accounts, hinting at the band’s imminent return to getting back together and hitting the road. Keep your eyes peeled on Dopapod’s website and social media accounts for impending news.last_img read more

The Postdocs – II

first_imgMiriah Meyer isn’t a biologist, but she helps biologists better understand their work.A postdoctoral research fellow in computer science in Harvard’s School of Engineering and Applied Sciences (SEAS), Meyer spends her work hours not at SEAS, but rather in a biology lab at Harvard Medical School, learning how DNA affects the development of thousands of tiny cells inside fruit fly embryos.  She doesn’t meticulously research and document each cell’s gene expression profile. Instead, she uses her expertise to reveal the minute differences and similarities across many species’ profiles to the scientists who do the research.“I love immersing myself in a new and different culture, whether that’s a foreign country or a new scientific field of research,” says Meyer.  “I really enjoy learning about new ideas and interactions, in both societal and scientific cultures.”As a computer scientists, Meyer specializes in the emerging field of visualization, which uses graphic computer representations to help scientists and others envision, manage, and interact with large quantities of complex data in ways that would otherwise be impossible.“In the last decade biologists acquired vast amounts of quantitative data, starting with the sequencing of the human genome,” she explains.  “They’re essentially swimming in this data — well drowning in it, really.  It’s the perfect time for a field like visualization to make an impact and enable scientists to make sense of all this data.”Meyer sees visualization as the happy marriage of art and science, of new discovery and in-depth learning, of being a sightseer and an architect of new cultures.  It’s no surprise that she is the daughter of an artist mother and chemist father, who spent her childhood both sculpting clay and learning basic computing.__________________________________________________________There are about 2,000 postdoctoral fellows in the labs at Harvard Medical School, the School of Public Health, the Faculty of Arts and Sciences, and the School of Engineering and Applied Sciences, and there are thousands of others in the laboratories of Harvard’s affiliated hospitals. This is the second in a series of articles about a few of those young postdocs on the verge of launching their independent careers.__________________________________________________________She grew up Powhatan, Va., a small town outside of Richmond, where she attended a school named after Pocahontas, another woman who bridged cultures.  Math and science were her favorite subjects from an early age, and she earned a Bachelor’s degree in astronomy and astrophysics at Pennsylvania State University.“I assumed that I would go to grad school.  But at the time, I wasn’t focused enough to study one thing for the rest of my life.  I wasn’t ready yet,” she says.  So she took a year off to explore the world, traveling to Australia, Mauritania, Thailand, Fiji, Nepal and across the United States.Meyer moved to Massachusetts in 2000 and began work as a software engineer at Raytheon. She spent evenings taking classes at Harvard Extension School, where Hanspeter Pfister, who is now the Gordon McKay Professor of the Practice of Computer Science in Harvard’s School of Engineering and Applied Sciences, was her computer graphics instructor. “It was literally after that first week of class that I thought computer graphics was awesome and I wanted to go to grad school for computer science,” Meyer says.Meyer decided to attend the University of Utah, where she also worked in the Scientific Computing and Imaging Institute and earned a Ph.D. in computer science.  (Ironically, she chose Utah because of the rock climbing opportunities it offered, but her first week there she fell while climbing in an indoor facility, injured her knee, and never climbed again.) During her studies, Meyer was drawn to the field of visualization because it allowed her to interact with the scientific research community.  “It was a way to be involved in science without being the scientist doing the experiments and observations,” she says.“As a global community, we have tons of data, whether medical, financial, or from scientific devices.  So, all this data, underneath it’s just a bunch of numbers,” Meyer says, adding that visualization is a helpful tool in making sense of enormous amounts of data.  “As humans, our brains are like a computer with limited memory.  So we can rely on the outside world as an external hard drive.  We can store all this information in diagrams or graphs or whatever.  In visualization, we rely on our perceptual system to be able to see patterns and see trends,” she says.Her research in Utah included taking what is called volumetric data, from MRIs or CT scans, and mapping that data into interactive 3-D images for physicians.  Her work enabled doctors to see various layers and organs inside the human body more realistically, and interactively.   “I was really interested in doing more multidisciplinary work and working very closely with end users.  Visualization is really about designing and developing visual encodings of data to help scientists make better sense of the relationships within that data,” Meyer says.Around the time Meyer completed her Ph.D., Pfister accepted a position at SEAS, and was looking for someone to do multidisciplinary research in his lab.  Meyer proved to be the person he was seeking.  “I assumed, because I have an astronomy degree, that I would be working with physicists and physical scientists.  But within the first two months of my postdoc, I started meeting biologists and found out that biology is in the midst of a data revolution right now,” Meyer says, referring to biological breakthroughs including the decoding of mammalian genomes, and quantitative gene expression data.Meyer began her postdoctoral research developing visual tools for biologists in the Systems Biology Department at Harvard Medical School, helping them track gene expression in 13 species of fruit fly embryos.  “One of the things I’ve liked most is the Harvard community, and just being in Cambridge, is that there’s so much interesting interdisciplinary science going on,” Meyer says.  “Once I started talking to one or two people, it just blossomed.  I’m working in three different labs right now, on three different projects, and that’s just the tip of the iceberg.”In her collaborations, Meyer attempts a deep understanding her collaborator’s research by spending time in their laboratories. “Having an interest and a curiosity in other people and in what they do is what attracted me to the work I do.  You get to work with other people and talk with them about their own science and learn about what they do,” she says.Meyer calls on background as a traveler to understand the relationships of data sets in complex scientific experiments, and she synthesizes that knowledge into a visual and interactive representation of the research data.  “There’s that same cultural experience for me as a computer scientist going into a biology lab that’s similar to what I love most about traveling to other places,” she says.  “It’s very much like learning a new culture.”She first works with scientists to figure out what their goals are.  “A huge part of what I do is to get inside the head of researchers to understand what they truly want to see out of their data.  Then I translate their data into a computer science language that I understand,” Meyer says.  She then writes software and designs interactive computer tools that process the data, and converts it into interactive images.  Using her tools, scientists can rely on their perception, rather than cognition, to more easily see patterns and trends.For example, when Meyer clicks her computer’s mouse over a single fruit fly cell represented on her computer screen, a row automatically appears showing an easily discernable gene expression profile for that specific cell at a particular time point in the experiment.  There are also links to similarly located cells in other species, and direct mapping to a 3-D image of the embryo, so that the biologists can compare gene expression within a single embryo or across species.The data in most of the projects Meyer collaborates on is brand new and tools hadn’t existed for scientists to see or interact with it.  Through computer visualizations, the biologists were able to interact with their data in new ways and to more easily see patterns.  This improved understanding of the data helped the researchers to reassess the direction and methods of their experiments.  “With this tool, they started looking at the data and realized some of the computational work they were doing was not the best way to look at it.  It allowed them to see that one of their data sets was plagued with low levels of noise, so they went back to regenerated that data,” Meyer says.Meyer has another year of work in the Pfister Lab, but says she hopes to remain in Cambridge because of the exciting opportunities in computing, visualization, and biology in the area.   “I get to learn about all this cool science, then there’s a fun design side in encoding the data, and the geeky computer science stuff that I love.  It’s a wonderful mixture of a lot of different fields,” Meyer says.“Postdocs, by nature, are a temporary thing.  They’re a stepping-stone to the rest of your career.  Part of me is anxious to get started.  But on the other hand, I have an incredible amount of freedom right now,” Meyer says.  “I’ve had a dream postdoc.  It’s this really blissful period where you get to focus on your research and that’s it.  It’s a ton of fun.”last_img read more

SEAS’s Katia Bertoldi wins Faculty Early Career Development Award

first_imgKatia Bertoldi, assistant professor of applied mechanics at the Harvard School of Engineering and Applied Sciences (SEAS), has won a Faculty Early Career Development (CAREER) Award from the National Science Foundation (NSF).The honor is considered one of the most prestigious for up-and-coming researchers in science and engineering.Bertoldi’s research involves the use of continuum mechanics and applied mathematics to model the mechanical behavior of novel materials at the small scale, such as nano-composites and biological composites.The $400,000 CAREER Award (“BuckliOrigami: Soft, Active and Foldable Structures Through Instabilities and Large Deformation”) will support her research in exploiting the non-linear behavior of soft structures with purposeful design patterns to create a new class of responsive origami-like materials.Possible and exciting applications include reversible encapsulation systems, active materials for on-demand drug delivery, rapidly expandable shelters, and robots that can squeeze themselves through small openings and into tight places.Bertoldi plans to use the grant to promote interdisciplinary research and teaching and to increase the interactions between mechanicians, engineers, physicists, and materials scientists.Prior to her appointment at Harvard, Bertoldi was an assistant professor at the University of Twente in the Netherlands.She earned a Ph.D. in mechanics of materials and structures from the University of Trento in Italy; an international master’s in structural engineering from Chalmers University of Technology in Goteborg, Sweden; and a Laurea Degree in Civil Engineering from the University of Trento.last_img read more

Community rings in Chinese New Year

first_imgSaint Mary’s and Notre Dame students rang in the Chinese New Year and celebrated the prevalent Chinese culture on both campuses Monday. In honor of the Year of the Dragon, Saint Mary’s College and the Center of Women’s Intercultural Leadership (CWIL) will host its annual China Night at 7:30 p.m this Saturday in O’Laughlin Auditorium. Alice Siqin Yang, assistant director for Global Education at CWIL, said China Night is a valued tradition on campus. “China Night is actually not new on Saint Mary’s campus,” she said. “It was held by both Saint Mary’s and Notre Dame Chinese students first in 1967. I am glad that we are able to host it again after 50 years.” Yang said China Night is designed to teach students and community members about other cultures, as well as entertain. “It offers a platform for students and community people to learn more about Chinese culture,” Yang said. Huyaling (Nora) Wang, a first year international student from China who helped CWIL plan the event, said China Night seeks to educate attendees. “Our purpose (is to promote) the Chinese culture, share international exchange experiences and bring people a festival atmosphere,” she said. Siqin Yang said CWIL planned several activities throughout the evening and transformed O’Laughlin Auditorium into a festival fit to celebrate the Year of the Dragon. She said the evening will include lantern riddle games, discussions on students’ study abroad experiences in China and performances from musicians and dancers at Saint Mary’s and Notre Dame, concluding with a special present for attendees. “All children and students will receive a red envelope, which is the traditional Chinese new year gift,” she said. Following the performances, games and discussions, there will be a reception where traditional Chinese food will be served. Wang said though China Night has a long history at the two schools, there were a few difficulties in planning the event. “The biggest challenge (we had to deal with) was contacting lots of performers and finding some special decorations,” said Wang. Siqin Yang said she agreed with Wang, but event planning proved successful in the end. “Our preparation time is tight, but we have been working hard on the event and are confident that attendees will enjoy the show,” she said. The event is free and open to the public.last_img read more

Odds & Ends: Colm Wilkinson Set for Les Miz’s 30th & More

first_img View Comments Here’s a quick roundup of stories you may have missed today. Colm Wilkinson, Frances Rufelle & More Tapped for Les Miz’s 30thReady the barricades! Colm Wilkinson, Frances Ruffelle, Roger Allam, John Owen-Jones and Gerónimo Rauch, along with current Broadway Prisoner 24601 Alfie Boe, are just some of the Les Miserables legends enlisted to bring the production’s 30th anniversary performance home in the West End. They will all appear in a celebratory finale after the October 8 show alongside the current cast at London’s Queen’s Theatre. The event will benefit the Save the Children Syria Children’s Appeal.Hamilton: The Book Sets Release DateWant to find out everything about the room where it happened? We now have a release date for the previously announced Hamilton: The Book. The tome, which will take you inside the creation of Lin-Manuel Miranda’s hit Broadway musical, will be available via Grand Central Publishing from April 12, 2016. Before then, of course, you can catch the show at the Richard Rodgers Theatre and the cast album (digitally, at least) from midnight tonight!Elaine Paige Takes On ShakespeareThe First Lady of British Musical Theater, Elaine Paige, will appear as Mistress Quince in the previously reported BBC adaptation of Shakespeare’s classic A Midsummer Night’s Dream. Brought to you by the team behind Doctor Who (so expect magic, CGI and plenty of prosthetics), the cast is also set to include Maxine Peake as Titania, Matt Lucas as Bottom and John Hannah as Theseus. The 90-minute film will air next year.Spring Awakening Picks Up Ovation Awards NodsBefore opening on Broadway, Deaf West’s Spring Awakening is already collecting award nominations. The revival received 16 Ovation Award nominations from the LA Stage Alliance. The nods included Best Production of a Musical (Large and Intimate Theatre, for both West Coast engagements) and Acting Ensemble of a Musical. Also recognized were director Michael Arden, choreographer Spencer Liff and performers Austin McKenzie, Sandra Mae Frank, Andy Mientus and Krysta Rodriguez. Not a bad way to kick off the weekend before opening night! The ceremony will be held on November 9.It’s Broadway or Bust for Matthew MorrisonFinding Neverland’s Matthew Morrison will make a cameo on Lifetime’s Project Runway Season 14 on September 24. The episode, which is entitled Broadway or Bust, has the designers creating looks based on the Broadway.com Audience Choice Award-winning tuner. Check out a sneak peak below; the show is playing at the Great White Way’s Lunt-Fontanne Theatre.last_img read more