Large mixing ratios of atmospheric nitrous acid (HONO) at Concordia (East Antarctic plateau) in summer: a strong source from surface snow?

first_imgDuring the austral summer 2011/2012 atmospheric nitrous acid was investigated for the second time at the Concordia site (75°06′ S, 123°33′ E) located on the East Antarctic plateau by deploying a long path absorption photometer (LOPAP). Hourly mixing ratios of HONO measured in December 2011/January 2012 (35 ± 5.0 pptv) were similar to those measured in December 2010/January 2011 (30.4 ± 3.5 pptv). The large value of the HONO mixing ratio at the remote Concordia site suggests a local source of HONO in addition to weak production from oxidation of NO by the OH radical. Laboratory experiments demonstrate that surface snow removed from Concordia can produce gas phase HONO at mixing ratios half that of NOx mixing ratio produced in the same experiment at typical temperatures encountered at Concordia in summer. Using these lab data and the emission flux of NOx from snow estimated from the vertical gradient of atmospheric concentrations measured during the campaign, a mean diurnal HONO snow emission ranging between 0.5 and 0.8 × 109 molecules cm−2 s−1 is calculated. Model calculations indicate that, in addition to around 1.2 pptv of HONO produced by the NO oxidation, these HONO snow emissions can only explain 6.5 to 10.5 pptv of HONO in the atmosphere at Concordia. To explain the difference between observed and simulated HONO mixing ratios, tests were done both in the field and at lab to explore the possibility that the presence of HNO4 had biased the measurements of HONO.last_img read more

UE Andiron Lecture Series for 2016-17 Announced

first_imgu eU OF E MASCOT The University of Evansville’s annual Andiron Lecture Series begins October 5 in Eykamp Hall, Room 252, in Ridgway University Center. UE associate professor of archaeology Jennie Ebeling will be speaking on “It Takes a Village: The Realities of Directing and Archaeological Excavation in the 21st Century.” A social hour with beverages precedes each lecture at 3:45 p.m. The lectures are free and open to the public.Other lectures in this series include:November 9, 4:00 p.m., Eykamp Hall, Room 253, Ridgway University Center,“Evansville History in Motion” – Joe Atkinson, UE digital multimedia specialist in residenceFebruary 1, 4:00 p.m., Eykamp Hall, Room 252, Ridgway University Center“Alpha Scholars and First- Generation Families” – Mari Plikuhn, associate professor of sociologyMarch 1, 4:00 p.m., Eykamp Hall, Room 252, Ridgway University Center“Toward a New Nostalgia for Public Libraries: Engaging, Inquiring, and Empowering” – Cynthia Sturgis Landrum, director of the Evansville-Vanderburgh Public LibraryApril 5, 4:00 p.m., Eykamp Hall, Room 252, Ridgway University Center“Diggers, Farmers, and Townsmen: Irish Immigrants in Southwestern Indiana” – Daniel Gahan, UE professor of historyThe Andiron Lecture series is sponsored by the William L. Ridgway College of Arts and Sciences and supported by a generous gift from Donald B. Korb. For more information, call 812-488-1070 or 812-488-2589.FacebookTwitterCopy LinkEmailSharelast_img read more

Greg Donahue and New Hip Ready for 44th Year With OCYAA

first_imgGreg Donahue will bring a new hip to his old-school approach this spring when he returns for his 44th season with the Ocean City Youth Athletic Association.Donahue, 68, whose name is practically synonymous with youth sports in Ocean City, is currently recuperating at his second home in Florida about a month after having a full replacement of his left hip. And to hear him tell it, he fully intends to be back at it very soon. That means umpiring, refereeing and coaching our young athletes – something he has done at a high level for generations.“Mr. Donahue is basically Mr. Baseball in Ocean City,” said  Ken Wisnefski, a longtime admirer. “He is a guy who teaches without any nonsense.  He makes them tuck in their shirts and wear their hat the right way.  But he is so nice about it. Fathers who were coached by him want their own kids to be coached by him”Donahue embraces the notion but with a caveat. “You should look like a ballplayer,” he said, “but it’s also important to enjoy the game.”Greg said he knew he had been involved in youth sports a long time when he attended a recent Ocean City High football game on Thanksgiving and ran into so many former players –many of whom were now fully grown.“I was hearing things like ‘Remember that game in 1990 you were umpiring and you called me out?’ And I would ask them if the play took place after 7:30 pm because I would have wanted to get home. Everybody is out after 7:30 pm,” he said with a laugh.He is kidding of course. Greg Donahue’s integrity and respect for the games wouldn’t allow him not to call it as he saw it.  He has officiated baseball, soccer and basketball for decades and he did so always the same way: with authority.“Each sport is unique,” he said. “Whatever sport I was coaching or officiating at the time, I was always looking forward to the next season.”He credits his wife Cindy and grown daughters Kristen Mazzitelli and Erin Porter for supporting him through all the decades of work and volunteering in youth sports. Kristen and Erin were very good athletes in their own right, playing softball, basketball and running cross country.Donahue has been a fixture with the OCYAA since 1972, a year after arriving in Ocean City to accept a job as a special education teacher. He coached at the minor and major league level with the OCYAA and at one point umpired virtually every major league game on the schedule.  He then became an officer in the league.  At the same time, his career in education was on the rise. He became the director of special services, was an assistant principal at the intermediate school and ultimately principal of the primary school.  Following his retirement, Donahue became acting and temporary principals at several schools, most recently in Brigantine.“I always thought (coaching and working with the OCYAA) made me a better school administrator,” he said. “I had the opportunity to get to know people and be accessible to them.  I always felt that if someone had a concern and wanted to speak to me at night or on the weekend, I should be available.”  He also said being a school administrator helped him working in youth sports.  “I could go into the schools and cajole kids into coming out for a sport.  Sometimes I would hand out five registration cards before the sixth one was finally filled out.  And the kid might bring a few of his friends with him.”Over the years he said the city has always been supportive of the organizations’ efforts. “That isn’t the case in a lot of towns. Almost everything we ever wanted to do as an organization was supported by the City’s administration, he said. “We have had tremendous cooperation from hundreds of people,” he said.Donahue has seen many changes in the sports and the participants. The biggest change, he said is today’s youth have a need for a faster pace for sports, especially baseball.“You have to change how you (practice and play) the game to replicate their lives, which is computers, video games, etc. They demand action. That means using a pitching machine or batting balls out in the field to them so they are constantly moving.  If you put action into the game, they will get into it. If you don’t, they are going to be bored and won’t stick with the sport.”Another example of this, he said, is the T-Ball program, in which teams were reduced from 12 players to six recently. This opened up scoring and gave players more at-bats.“You have to keep things moving fast and keep the sports action oriented,” he said.And now with his new hip, Greg Donahue feels he can keep moving himself for at least a few more years.last_img read more

Consumer watch

first_imgThe last time I went to a craft bakery, I bought two turkey rolls on my way to work. I bought them for convenience because there are always people waiting to be served in the supermarket.I also find the rolls are better quality and fresher than pre-packed sandwiches. They also sell cups of soup at my bakery, which I think is a very good idea.I don’t have a massively sweet tooth and so don’t eat a lot of cakes. I particularly don’t like apple pie or anything that contains warm fruit. I just think that its too gooey. What I do really like though, but you don’t see them so much any more, are iced buns.I wouldn’t buy a meat pie in a bakery. I think they are too heavy for a snack. I prefer pies as part of a meal, with new potatoes or vegetables. Because of this, I buy them at the supermarket or eat home-made pies.I would not go to a bakery just to buy bread. Although I think the bread is better. I don’t think that many people have the time to go to different shops to buy things. I just wait until I go shopping in the supermarket and then I can buy everything all at once.I used to think I only liked white bread because that’s all I would buy. But after trying it, I’m really starting to enjoy brown and multi-grain bread.Joseph Bastick-VinesStreatham, Londonl Each month, British Baker will ask a member of the public what they think of bakery products available in the UKlast_img read more

Colonial North America at Harvard Library

first_img Library’s vast collection from era, from love letters to receipts, digitized for public view The Daily Gazette Sign up for daily emails to get the latest Harvard news. A Colonial goldmine The beauty of the book in all its forms First-year seminar gets students to explore some of Houghton Library’s rarest volumes center_img Scroll through Colonial life Two digital projects aim to bring vast numbers of early documents, many unexamined, to light For six years, Harvard Library has been working to make its vast collection of archival and manuscript materials from the colonial era accessible online. Today, approximately 650,000 digitized pages of handmade materials from the 17th and 18th centuries are available free to the public. Held in 14 repositories around the University, the works tell the tale of economic and social life in the colonies that would become the United States.European exploration and colonialism in North America took place over several centuries and affected the lives of millions of people across multiple continents. The breadth and scope of these materials reflect this long history and its many dimensions. More than 200 years of colonial history are represented in these items, and their diversity in focus, format, and content reflects the complexities of the era in which they were created.Each item in the collection is connected to countless stories — of lives lived quietly and extravagantly, of encounters peaceful and volatile, and of places near and far. These documents, illustrations, and letters provide an opportunity to travel back in time, to rethink familiar stories and discover new ones.Major support for this multiyear project was generously provided by Arcadia, The Polonsky Foundation, James B. Adler through the Adler Preservation Fund, and Peter H. Darrow and William O. Nutting through a fund for the Colonial North America Digitization Project at the Harvard Library.,An image of Hollis HallThis gouache and ink by an unknown artist depicts Hollis Hall, built as a dormitory “from an appropriation of Pound 3,000 made by the General Court in 1761,” according to an 1876 Harvard Crimson story. It was struck by lightning in 1768, used as troop barracks in 1775–76, and survived a fire a century later. It has housed some of Harvard’s most famous alumni, including Ralph Waldo Emerson, Henry David Thoreau, and John Updike.,Washington portraitJust an inch and an eighth wide, this watercolor on ivory of George Washington in his early 40s was painted by Charles Willson Peale in 1775, the year Washington became the commander in chief of the Continental Army (signified by the blue sash). Hannah Erwin Israel, the original owner of the portrait, claimed Washington gave it to her after she provided him with information about the movements of the British Army during the Revolutionary War.,French Revolution travel documentAn 1800 laisser-passer, or 15-day permit to travel around the French colony of Saint-Domingue (now Haiti), is a reminder that Colonial North America was not just the British colonies on the Eastern Seaboard; the Caribbean was also key.,John Winthrop’s almanacsA detail in the hand of John Winthrop (below), a descendant of a leading figure in the founding of Massachusetts, from his 1775 almanac. The back cover of Winthrop’s 1772 almanac (above) shows Paul Revere’s engraving of the Boston Massacre; inside the book, Winthrop’s wife, Hannah, recorded the births and deaths in the community as well as a domestic inventory including butter, eggs, walnuts, pigeons, and wood for the kitchen chimney.,Relatedlast_img read more

A look at COVID-19 vaccines already in use, or getting close

first_imgWhile a few have already hit the market, there are still dozens of coronavirus vaccines in development around the globe. The race started a year ago when the virus first emerged in China.  Some of the vaccines use tried-and-true technologies while others are taking novel approaches. Preliminary results show a range in effectiveness, from about 50% to over 90% for some. So far, country regulators have OK’d about a half dozen vaccines, sometimes even before they were rigorously tested. A few more vaccines are nearing the finish line.last_img

ND encourages liberal arts education

first_imgWhile technology jobs dominate the top 10 of U.S. News’ list of the 100 Best Jobs of 2013, Notre Dame continues to emphasize the value of a liberal arts education. Notre Dame requires students to complete 14 liberal arts courses in different disciplines in order to graduate, according to the University website. In 2010, there were 2,333 students enrolled in the College of Arts and Letters. The College of Engineering enrolled 937 students the same year.    Dean Peter Kilpatrick of the College of Engineering said technology education and the liberal arts do not need to be mutually exclusive. He said a liberal arts background benefits engineers because it is important they can analyze, think creatively and develop designs. Engineers with such skills are in a unique position to shape public policy, Kilpatrick said. “We should have more senators and congressmen and presidents who are engineers, not just lawyers,” he said. “I think engineers very much need an appreciation for the social impact of the work that they do in terms of building infrastructure.” Students outside the College of Engineering should be exposed to quantitative analysis, Kilpatrick said. He said several departments within the College of Arts and Letters are starting to introduce these concepts. “A lot of the engineering students that go into analytics jobs could just as easily be business students who are properly skilled in analytics or even Arts and Letters students who take coursework in quantifying things, data analytics, that sort of thing,” Kilpatrick said. Dean John McGreevy of the College of Arts and Letters agreed students with liberal arts majors could work in technological fields. “A company like Google is hiring lots of people to design programs and applications coming from a liberal arts background because they want the creativity or the ability to think across cultures that they associate with a liberal arts background,” McGreevy said. A liberal arts background enables students to address life’s big questions, McGreevy said. He said the abilities to write, speak and analyze data prepare students for leadership roles. “It’s not just about obtaining skills, although skills are important,” he said. “It’s also what kind of society should we have, how do we think about inequality, how do we think about human dignity, how do we think about the environment, does God exist. We want our students who are going to become leaders to be engaged in that conversation.” Kilpatrick said each of the University’s academic departments should interact more closely with other disciplines to enrich all programs. “People in civil engineering who are deeply interested in the beauty of the built infrastructure might find ways to interact much more closely with architecture, with industrial design,” he said. “You could do that, presumably, for virtually every discipline.” The nation needs more engineers, Kilpatrick said. He said many more college students in China major in engineering or engineering technology than do in the United States. “We’re going to run the risk of them out-producing the [United States] … and that could mean problems for our economy,” Kilpatrick said. “We won’t have the command over the market in technological products that maybe we enjoyed in the last part of the 20th century.” Kilpatrick said Notre Dame is working to ensure students who want to study engineering can complete the coursework. Interest in engineering is also growing, he said. “We need to be careful that we don’t retain such a high percentage that we don’t enable students to figure out, ‘Do I really love engineering, or am I doing this for the job?” Kilpatrick said. “We really want students to discern properly, ‘What’s your vocation as a person?’” Kilpatrick said the University should modernize its general education requirements. “I think we want to continue to have an emphasis on the human sciences … but I think we need to refresh it and think about how do we best equip students for the 21st century,” he said. “We live in times that are very different from even 20 years ago.” Kilpatrick said he suggests instituting an introduction to technology literacy course so students become informed enough to enter the public dialogue about technological issues. “There are really important decisions that our government is making that the majority of our country can’t weigh in on because they don’t know enough,” Kilpatrick said. McGreevy said although he does not see a need for a technology literacy course, he anticipates the University will soon reexamine its core requirements. “Our core requirements haven’t changed in quite a while … and they’re there for good reasons,” McGreevy said. “It’s always good to be looking at them and thinking through what set of requirements make most sense at the current moment for a great Catholic university.” The University aims to prepare students for more than just their first jobs, McGreevy said. “It’s a lifetime investment, we hope, in developing those writing and reading and speaking skills,” he said. McGreevy said although skepticism about the value of a liberal arts education exists, he is more convinced than ever of its value. “Our experience at Notre Dame tells us that liberal arts students get jobs and they get good jobs,” he said. “But even more important, the investment that our students make in becoming better writers, better speakers, better able to analyze data, prepares them for their careers over the long haul and indeed prepares them, we hope, to be better citizens, better people, better capacity to make a real contribution to society.” Contact Marisa Iati at [email protected]last_img read more

U.S., Argentina Resume Military Ties Amid Visit by Top Pentagon Official

first_imgBy Dialogo September 03, 2012 BUENOS AIRES — Frank Mora, the U.S. Deputy Assistant Secretary of Defense for Western Hemisphere Affairs, visited Buenos Aires on Aug. 16 — marking the first official trip by a high-level Pentagon official to Argentina since its February 2011 confiscation of a U.S. military aircraft for inspection. Mora’s visit signals Washington’s desire to focus on reviving a long-standing history of mutual trust and defense cooperation. “For Argentina, military relations with the United States should be given importance since the U.S. is the world’s primary power and because it has unquestionable influence in the hemisphere,” said political scientist Rosendo Fraga, who heads the Nueva Mayoria think tank in Buenos Aires. “It makes sense for Washington to improve relations with Argentina within the overall context of its foreign policy toward South America, where Argentina has the second- largest GDP after Brazil and the third-largest population after [Brazil and] Colombia.” Argentina and the United States have a long successful history of military cooperation. In 1963, the Pentagon established a Military Assistance Program (MAP) for its South American neighbor. Like most other MAPs, it provided assistance in materials and machinery for military production, direct transfers of military equipment and training of personnel. That cooperation strengthened throughout the years, with only one interruption during the Argentine military regime of 1976-83. Military relations on the upswing Between 1950 and 2000, Argentina received $34 million in U.S. military aid and has sent more than 5,200 exchange students to the United States for defense-related courses. In 2009, Argentina ranked fourth among countries participating in U.S. training programs, with 688 students, according to Just the Facts, a website that monitors military assistance to Latin America. Yet an about-face in Argentine foreign policy had strained cooperation. “The bilateral relationship between the two countries in the military area has multiple possibilities, but the issue is that the Argentine government does not appear to want to advance with these,” Fraga said. However, Mora’s visit offers hope that ties are on the mend. Argentine Defense Minister Arturo Puricelli praised U.S. defense policy during a recent gathering at the Education Center of the Armed Forces (CEFFAA) where he thanked Mora for his visit and “predisposition to work in the intensification of U.S.-Argentine relations.” Puricelli explained that the renewed relationship should be developed on the basis of “mutual respect” — and must be “aligned with” South American defense policies to ensure the objective of creating a regional “zone of peace.” Mora thanked Puricelli for the opportunity “to exchange and share ideas and policies in the area of defense” and highlighted the regional armed forces’ “professionalism, respect for the rule of law, and subordination to civilian governments.” Threats of the 21st century Mora also touched on new multidimensional and transnational threats confronting the hemisphere like cyber attacks and natural disasters. He urged Argentina “to utilize the armed forces to support decisions made by civilian authorities to establish cooperative and transparent relations” between governments. Argentina was notably absent from the recent U.S.-led Panamax 2012 military exercise aimed at bolstering hemispheric cooperation. Its decision to abstain, however, is difficult to interpret as ideologically based since Ecuador — a member of the ALBA regional alliance— set aside fundamental differences with Washington and participated in the exercises. So did 13 other countries: Belize, Brazil, Chile, Colombia, Dominican Republic, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, and Peru. During the Cold War, Argentina and the United States cooperated to protect themselves from the communist threat. In the early 1990s, with the Cold War over, attention turned to fighting drug trafficking — and following the 9/11 attacks, the focus has been on eradicating narco-terrorism. Argentina has been a victim of international terror in 1992, when the Israeli Embassy in Buenos Aires was bombed in an attack that left 29 people dead — and again in 1994, when a truck bomb destroyed the Jewish community center in Buenos Aires, killing 85 people and injuring more than 300. Argentina is pursuing military cooperation with a myriad of non-traditional partners. Some of these alliances — such as the ones it’s formed with Venezuela and China — bring into question shared values with the United States. Despite these recent mixed signals and lost opportunities, officials from both sides are now seeking common ground in order to avoid discarding years of friendship and cooperation. You forgot to comment on the “immense” cooperation provided by the United States to Britain during the Falklands conflict… that took place not long ago. I think that regarding military cooperation, it only should be at low intensity, because the “Falkland” still exists and it has not been resolved, and we all know what was and what currently is the policy of Washington! It is the comment of a sepoy. Vomitive. If we want to know if they really want to cooperate with Argentina, we will ask them to sell us fighter aircraft and also the transfer of technology from them, as they are offered to Brazil. UNITED STATES AND THE STATES OF COMMERCIAL SPIRIT, TRAFFICKERS, SPECULATORS AND OPPORTUNISTS, ETC., DO NOT HAVE FRIENDS, THEY HAVE PARTNERS, BUDDIES, AS THEY ARE BANDS OF RATS WITH SUIT AND TIE EMBEDDED IN THE STATES AND SKIRTS OF A PEOPLE AND NATION. THE CONTRARY IS PURE SHIT. WHY IS THE WORLD IS DIVIDED INTO DRONES AND WORKERS?last_img read more

Post offices could be credit unions’ next competitors

first_img 3SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr When I was a young girl in the U.S., my parents – both born in Mexico – visited the local U.S. Postal Service (USPS) office to do more than buy stamps and mail packages; they also bought money orders. Without a banking relationship in our community, my parents considered the post office to be a dependable and acceptable way for them to conduct these specific financial transactions.Today, as an adult and a strong advocate of the credit union movement, I find myself reflecting on my family’s experience. My parents bought money orders at the post office because it was convenient, reasonably priced and they weren’t asked a lot of questions. Simply stated: The post office fulfilled a simple need.What if the post office had offered other financial services? Services similar to those offered by today’s credit unions? Would they have chosen to use those services?The changing landscape of financial services, coupled with struggles faced by the USPS, is creating what could be perceived by credit unions as an unsettling reality: Competition from post offices, especially among minority populations, is a real threat. continue reading »last_img read more