Calculation of pitch angle and energy diffusion coefficients with the PADIE code

first_imgWe present a new computer code (PADIE) that calculates fully relativistic quasi-linear pitch angle and energy diffusion coefficients for resonant wave-particle interactions in a magnetized plasma. Unlike previous codes, the full electromagnetic dispersion relation is used so that interactions involving any linear electromagnetic wave mode in a predominantly cold plasma can be addressed for any ratio of the plasma-frequency to the cyclotron frequency ωpe /∣Ωe∣. The code can be applied to problems in astrophysical, magnetospheric, and laboratory plasmas. The code is applied here to the Earth’s radiation belts to calculate electron diffusion by whistler mode chorus, electromagnetic ion cyclotron (EMIC), and Z mode waves. The high-density approximation is remarkably good for electron diffusion by whistler mode chorus for energies E ≥ 100 keV, even for ωpe/∣Ωe∣ ≈ 2 but underestimates diffusion by orders of magnitude at low energies (∼10 keV). When a realistic angular spread of propagating waves is introduced for EMIC waves, electron diffusion at ∼0.5 MeV is only slightly reduced compared with the assumption of field-aligned propagation, but at ∼5 MeV, electron diffusion at pitch angles near 90° is reduced by a factor of 5 and increased by several orders of magnitude at pitch angles 30°–80°. Scattering by EMIC waves should contribute to flattening of the distribution function. The first results for electron diffusion by Z mode waves are presented. They show that unlike the whistler and EMIC waves, energy diffusion exceeds pitch angle diffusion over a broad range of pitch angles less than 45°. The results suggest that Z mode waves could provide a significant contribution to electron acceleration in the radiation belts during storm times.last_img read more

US Navy Vessels Strengthen Ties with ROK Navy

first_imgBack to overview,Home naval-today US Navy Vessels Strengthen Ties with ROK Navy View post tag: News by topic Share this article View post tag: asia View post tag: Navy May 4, 2015 Sailors from the Arleigh Burke-class guided-missile destroyers USS Preble (DDG 88) and USS Fitzgerald (DDG 62) along with the Los Angeles-class fast-attack submarine USS Pasadena (SSN 752) arrived in Busan, May 1 to strengthen partnerships with the Republic of Korea (ROK) Navy.While in Busan, Sailors from all three vessels will have the opportunity to conduct community relations engagements in the local Korean community. Fostering enduring relationships through community relations with local citizens, theater security cooperation engagements with the ROK Navy, and regular bilateral training is part of the U.S. Navy’s contribution to sustaining a strong alliance between the U.S. and the ROK.Preble, Fitzgerald, and Pasadena are currently conducting routine patrols throughout the Indo-Asia-Pacific as part of the U.S. 7th Fleet.As multi-mission platforms, these vessels can carry out independent operations or operate in conjunction with other Navy ships to conduct maritime security operations that promote stability and peace, and develop key partnerships with allies across the region.[mappress mapid=”15846″]Image: US Navy View post tag: ROK Navy View post tag: Ties View post tag: Strengthen Authorities View post tag: US Navy US Navy Vessels Strengthen Ties with ROK Navylast_img read more

Landlords face tighter regulation

first_imgBen Stevens, together with his house mates, paid £1,660 per month for a property during his second year at Somerville College. His experience with NOPS was not positive. “When we moved in to the house the garden was strewn with rubbish – signs, a trolley, broken barbecue – and some bricks and rubble.“The conservatory where the shower was wasn’t properly insulated so it was freezing most of the time and there was some sort of bush growing in from outside…The path in the front garden was also broken and uneven, so pretty unsafe.”Other bad experiences include a house so unclean it was unfit for habitation for a month. Health and safety questions were also raised by problems with mould and gas leaks. A third year student said, “We discovered a gas leak a few weeks after we moved in and the gas man told us we should not have been living in the house at all.”Problems occurred despite nearly all respondents having visited their houses prior to signing a contract. Some suggested that although they did view their rented property, with hindsight they regret that they had not inspected it properly. “We didn’t ask the right questions. This is the most important thing,” a current tenant of a Lyttons’ property saidDani Quinn, OUSU welfare officer, urges students to “take their time when selecting an agency, selecting a house, and signing the tenancy agreement. Agencies have made efforts to create panic and give the impression there is a shortage of housing – this is completely untrue, and causes people to rush decisions and pay too much.”All letting agents spoken to reiterated that they dealt with complaints as quickly as possible. A spokesperson for Hutten Parker added, “once we hear a complaint we contact the landlord and should be able to respond within a few hours”.Julia Koskella, a third year student and previous NOPS tenant, explained, “What angered me is that there were tonnes of hidden charges – you get back some of your ‘holding deposit’, but half of it is taken as a holding fee, and most of the rest of it is a ‘check-out charge’ even if your property was left spotless at the end, as ours was.” NOPS were keen to point out that “all our charges are clearly explained to prospective tenants (students or otherwise) at the application stage before they agree to let a property from us.“They are standard charges within the industry and are largely related to issues that protect both the landlord and tenant.”However, Koskella insists, “NOPS attempted to retain all of our £550 deposit on leaving the house in the summer, and it was only after a real effort that we managed to keep the majority of it. Many students, however, will not have the ability or the inclination to stand up to them.”Before the new letting laws come into effect, Jo Holland, JCR welfare officer at Somerville College, advised students to “go and talk to a letting agent before signing anything with them, preferably on a day when you have time.“Let them explain to you all the fees and deposits they will need and note them down, question which will be returned to you and under what premises.”It is hoped that Wednesday’s plans will help students living out by making the rights and responsibilities of their landlords clearer. Oxford Council further hopes to improve standards by requiring all landlords to register with them.In order to register, they will have to sign up to universal quality standards.Charlotte Carnegie, OUSU Rents and Accommodation officer and OULC co-chairwoman, welcomed the plans. She commented, “I am really excited about the landlord licensing scheme as I think it will make student tenants feel more confident about living out, knowing that they will be renting a property which meets recognised standards.“For most students the first time they rent is at or directly after university. The National Landlord Register will provide quick and easy access to information, bolstering students’ ability to know their rights and ensure they are protected.”Oxford East’s Liberal Democrats parliamentary spokesperson, Steve Goddard added, “I welcome this Labour U-turn… 70% of local people want mandatory licensing, and I am pleased to hear that Labour are finally paying attention. The Liberal Democrats will keep putting pressure on Labour to introduce mandatory licensing in Oxford as soon as possible.”However, some landlords have been angered by the news. Steven Hilton of the National Landlords Association argues, “By making it more difficult and costly for landlords to provide this type of accommodation, these measures will reduce choice for tenants and increase pressure on local authority housing lists.” Drastic new measures to curb landlords scamming students and creating student ‘ghettos’ were introduced by the government last Wednesday.The Housing and Planning Minister John Healey revealed a range of new powers for local authorities aimed at tackling unsafe and substandard rented accommodation.The plans include a new National Landlords Register, giving local government the power to set up a landlord licensing scheme and making it harder for landlords to set up new shared homes.The proposals come in a week which has seen an outpouring of complaints about landlords from Oxford students.The anger was shown in Cherwell’s report last week on the North Oxford Property Service (NOPS). The letting agents were criticised for allowing 36-hour queues in the lead up to the release time for student houses, and other concerns about their practices were raised.Since then, a Cherwell survey has revealed that 70% of Oxford students living out of college accommodation were unhappy with their properties, and saw that they needed repairs once they arrived. Less than half of these believed that repairs were dealt with sufficiently by their landlords.Over 70% of those surveyed found that their property was in need of repairs on the first day of their tenancy. Only half believed that letting agents were dealing with repairs quickly enough.Some complained of mould and rats as long-standing problems which had even required the attention of Oxford City Council.Over a quarter of Oxford’s colleges cannot house undergraduates for the entirety of their course. Students with no choice but to rent alternative property pay between £300 and £450 per month for a single room in a shared house.last_img read more

Oliver North Draws Packed Crowds and Protesters in Ocean City

first_imgOliver North tells the audience at the Ocean City Tabernacle about his spiritual awakening. By Donald WittkowskiMixing piety and patriotism, Oliver North spoke of his devotion to God and country during an appearance Sunday at an Ocean City church that attracted an overflow crowd of admirers inside the building but drew protesters outside.In remarks to more than 1,000 churchgoers at the Ocean City Tabernacle, North talked about his spiritual awakening while he was still serving in the military and how his religious beliefs continue to guide his life.North, 74, repeatedly referred to the teachings of the Bible during a 30-minute speech that took on a sermon-like quality at times, but also touched on U.S. history, military heroics and contemporary society while mingling in humorous personal anecdotes.“The truth is right here in this book,” he said, holding up a copy of the Bible.Only once during his remarks did he briefly mention his appointment as the new president of the National Rifle Association, a position that has drawn criticism from gun opponents, including protesters who carried signs and chanted slogans denouncing North while marching outside the Tabernacle.More than 1,000 churchgoers fill the Ocean City Tabernacle to hear North’s remarks.North did not discuss his role in the Iran-Contra affair, the political scandal in the 1980s that made him a household name. While serving then as a staffer with the National Security Council, North was part of an illegal plot in which former President Ronald Reagan’s administration used the proceeds from the secret sale of arms to Iran to aid the Contra rebel forces in Nicaragua.North was convicted in the Iran–Contra affair, but was successful in fighting his convictions and having them reversed. All charges against him were dismissed in 1991.Before the Iran-Contra scandal elevated him into a national figure, North was a decorated combat Marine. He said a pivotal moment in his life came in 1978, when one of his Marine commanding officers placed a Bible in his hand and told him, “You have got to get to know your Lord and savior, Jesus Christ.”It was at that time that he committed himself to Christ, beginning a religious transformation that continues to profoundly shape his life 40 years later, North said.North told audience members at the Tabernacle that if they know of anyone who is in need of spiritual guidance, they should rely on the Bible to help them “save someone else’s life for eternity.”“I urge you, using that book and your behavior, show them the way to Jesus Christ,” he said.Among other topics, North’s speech touched on religion, history, the military and contemporary society.He began his remarks with a religion-tinged history lesson, discussing how the Founding Fathers were influenced by their Christian beliefs while crafting the Declaration of Independence. He said the Declaration of Independence is the only manuscript of its kind that pays homage to “God Almighty.”The Ocean City Tabernacle, North said, has benefited from the religious freedoms promoted by the Declaration of Independence by becoming “this wonderful refuge for Christian families to come to.”North was a media personality when he formerly hosted the program “War Stories with Oliver North” for Fox News. He also served as a political commentator for Fox News, but retired from the network following his appointment as NRA president.During his speech Sunday, he played video clips from his Fox program that showcased the heroics of American soldiers. At one point, he asked current and former members of the military, as well as law enforcement officers who were sitting in the audience, to stand and be recognized. He also asked their spouses to stand up.“Those are our American heroes,” he said while the audience applauded.North also spoke fondly of his wife of 50 years, Betsy, their four children and their 17 grandchildren.Drawing laughter from the audience, he recalled a comical moment during a trip that he and his wife took to Israel in January. He said they were standing in the lobby of a Jerusalem hotel when a busload of American tourists pulled up.One of the tourists asked him, “Did anyone ever tell you that you look a lot like Ollie North?”North said he responded, “It’s a good thing I look like Ollie North because I’m sleeping with his wife.”The befuddled tourist, not knowing he was talking to the real Oliver North, chastised him about his remarks, North said.North’s appearance at the Tabernacle was part of a summer series of speakers and special events. More information is available by visiting Galantino, of Berwyn, Pa., watches as North signs a copy of his book, “Under Fire: An American Story.”On Sunday, North delivered two separate speeches in front of packed crowds. North, who is a best-selling author, had a book signing and posed for pictures with churchgoers after his first speech.Michael Galantino, who lives in Berwyn, Pa., and has a summer home in Ocean City, had North autograph a copy of his book, “Under Fire: An American Story,” which chronicles his trial and role in the Iran-Contra scandal.“He’s a special man,” Galantino said, pointing out North’s place in U.S. history and politics.One Ocean City couple, Diana and Steve Harvey, sat in the front row to listen to North’s first speech. They said they were inspired by his remarks.“I expected him to be good, but he was fantastic,” Steve Harvey said. “The man is a born evangelist.”Diana Harvey said she thought North spoke from the “heart and soul.”Protesters hold signs denouncing gun violence while marching outside the Ocean City Tabernacle.Outside the Tabernacle, however, protesters carried signs condemning North’s appointment as the new NRA president. Some of the signs read, “Protect kids, not the NRA” and “Worship God, not Guns.” Protesters also chanted, “No more NRA.”Caren Fitzpatrick, an Atlantic County freeholder, criticized North and the NRA for not opposing assault weapons.“I believe in sensible gun control. But assault weapons should be for the military, not for civilian use,” Fitzpatrick said.Protesters Leslie and Andy Skibo, a married couple from Ocean City, also expressed outrage about assault weapons. They said they are concerned about school safety.“I’m here for my children and grandchildren,” Leslie Skibo said.Andy Skibo held a sign that read, “Jesus didn’t own an AR-15,” referring to the semi-automatic assault rifle used in some of the mass school shootings and other public attacks.“We want responsible gun control,” Skibo said. “I don’t believe people should own an assault weapon. That’s what this whole issue is about – responsible gun control.”last_img read more

Evron extends reach with Pontypool plant

first_imgNorthern Irish bakery supplier Evron Foods is to open a manufacturing plant in Pontypool, South Wales next month to extend its reach in the UK.Evron, which supplies Subway stores in the UK, Ireland and Scandanavia built the factory “largely to bring us closer to the UK market”, said marketing director Dominic Downey. The plant, which will be Evron’s second, has been built from scratch over the last 14 months, with the help of a Welsh Development Agency grant. It will initially employ around 50 people.The facility will extend the firm’s reach in the south of the UK and will bring it closer to European markets, Mr Downey said. “We are much stronger in frozen than we are with chilled in the UK,” he added. “It is more difficult to service the chilled market from our Northern Ire-land base because of distribution and shelf-life issues. The Pontypool site solves that.”The plant will make a limited product range, focusing on volume lines and automation. Evron will use it to develop its own customer base, as well as service existing accounts.The 23-year old Evron Foods has a £12 million turnover and specialises in frozen and chilled bakery products, par-baked breads, added-value and flavoured breads. Its main brands are Easibake and La Baguette and it currently supplies the UK, retail, foodservice and wholesale sectors from its Portadown hub.last_img read more

Indiana University postpones all commencement activities on all campuses

first_img WhatsApp Facebook Pinterest IUSB graduates at the 2019 Commencement. Photo by Tommie Lee. Official statement:Friday, March 20, 2020To all members of the Indiana University community,I write to share the enormously disappointing news that IU must postpone all Spring Commencement Ceremonies on all campuses that are scheduled in May. Current guidance from the CDC, restrictions on large gatherings, and our own focus on health and safety make it impossible to hold these cherished traditional events as scheduled. I am taking this action now so you can adjust any commencement travel plans given the COVID-19 pandemic.Commencement is a seminal moment for our graduates and their families, and today’s announcement is truly only a postponement of the moment that has been so richly earned. All IU graduates will be able to participate in a future IU Commencement Ceremony when the public health situation again allows us to do so.All IU degrees will continue to be awarded when earned, and this change of plans in no way affects the timing and awarding of IU degrees.I know that our students are working incredibly hard to reach this milestone, and those who earn an IU degree deserve to be celebrated with their friends, professors, families and loved ones. We are especially saddened to have to postpone this year’s ceremonies, as these students will be the Bicentennial Graduating Class and the first in IU’s third century.As I have previously announced, IU is working vigilantly to adapt to the evolving COVID-19 situation. We have put in place a means for virtual classes and other measures so that students can complete their courses this semester. Even as we find the disruptions to our personal lives and the work of the university so all-encompassing, I am deeply grateful for all that our faculty, staff and especially our students are doing as we all work through this grave health crisis together.Once again, there will be additional communications as we learn more. Please continue to check our website for all updates and additional information at A. McRobbiePresidentIndiana University Previous articleIndiana’s primary election moved to June 2Next articleIndiana requests federal waivers to support timely medical service Tommie Lee Pinterest By Tommie Lee – March 20, 2020 0 276 Google+ WhatsApp CoronavirusIndianaLocalNewsSouth Bend Market Twitter Google+ Indiana University postpones all commencement activities on all campuses Facebook Twitterlast_img read more

Stephens Bakery targets hungry motorists

first_imgStephens Bakery has opened two sites in service station locations, as it resubmits plans for the bakery drive-thru concept.The bakery will now be open in Cairneyhill Service Station in Dunfermline, and Shell Service Station in Rosyth – both in Scotland.Meanwhile, according to Dunfermline Press the company has resubmitted plans to turn the former Black Douglas petrol station and car wash into a drive-thru concept bakery store.A design statement on the newpaper’s website said that the drive-through shop would operate for sales seven days a week between 7am and 10pm. The statement said: “No baking shall take place on-site, as this is carried out at the applicant’s bakery in Rosyth.“The ovens that shall be installed are ‘bake off’ ovens, which heat the produce through. The site has been empty for a number of years, falling into a state of disrepair, creating an eyesore on a busy thoroughfare into Dunfermline.”If approved by Fife Council, it will have 19 car parking spaces and the drive-thru facility will be the first of its kind in Scotland.Stephens, established in 1873, is one of Scotland’s largest craft bakers with 13 shops and 180 staff across Fife.last_img read more

Ways of seeing

first_imgHer enigmatic expression has been the topic of artistic debate for hundreds of years. But the reason the Mona Lisa’s mouth — part smile, part pursed lip — is so confounding has to do with the eyes, according to one Harvard scientist.More specifically, Leonardo da Vinci’s 16th-century masterpiece beguiles observers because of the way their gaze jumps around the picture — from the Mona Lisa’s mouth, to her eyes, to her forehead. Where a person focuses his or her eyes determines the extent of the subject’s smile, said Margaret Livingstone during a recent talk.While many art historians argue that the puzzling effect appears because the Mona Lisa’s “smile is blurry,” Livingstone contends it’s because of a fundamental difference between a person’s central and peripheral vision.“If you look at her eyes and then look at her mouth, doesn’t she seem cheerier when you are looking at her eyes?” Livingstone asked the crowd in an Emerson Hall lecture room on Wednesday. “That’s not your imagination, that’s something really low level, and it has to do with the fact that your acuity falls off from the center of gaze quite a lot.” In other words, a person’s peripheral vision is terrible at discerning fine detail. When a viewer looks at the Mona Lisa’s eyes instead of her mouth, their peripheral vision notices the shadows around her cheeks that seem to expand her smile and make her appear cheerier.“If you take home any message from my talk today, I hope you will take home the idea that vision is information processing, not image transmission,” said Livingstone, a Harvard Medical School professor of neurobiology who specializes in how the brain receives and processes visual information. During the Mind/Brain/Behavior 2012-2013 Distinguished Harvard Lecture, Livingstone delved into several masterworks to explore what happens when we look at a work of art.LuminanceLivingstone, author of  “Vision and Art: The Biology of Seeing,” noted how sections of certain paintings, particularly impressionist works, almost appear to move. The effect, she said, relates to the relative luminance the eyes are able to detect between the painting’s colors. The closer two colors are in luminance, said Livingstone, the more they seem to shimmer.“The impressionists achieved this sense of motion in some of their paintings by using … equal luminant paints,” said Livingstone. One of the fathers of impressionist painting, Claude Monet, captured the sense of moving, rippling water in many of his works because he filled them with “equal luminant patches of color.”Face valuePrimates have an extraordinary ability to process faces, Livingstone said. She proved her point by rapidly flashing pictures of familiar faces on a screen at the front of the room. “You are seeing these images in a tenth of a second, and yet you are not only detecting faces, you are recognizing particular individuals.” Many in the crowd nodded in agreement.“We can do it better than any computer program,” she said.Humans are so adept at recognizing faces because particular regions of our temporal lobes are strictly dedicated to the task. In addition, “face cells code how any given face differs from the average face,” she said, and they can do so almost instantly.Livingstone said that artists “were way ahead of us on this.” They understood that a straightforward, vertical line drawing of a face is harder to recognize than a caricature. That’s because a caricature, explained Livingstone, is when “you take somebody, you compare them to the average, and then you exaggerate the differences.”last_img read more

Maureen Lipman & Harry Shearer Will Star in West End Transfer of Daytona

first_img View Comments Maureen Lipman and Harry Shearer will star in the West End transfer of Oliver Cotton’s Daytona. Directed by David Grindley, the show will begin performances at the Theatre Royal Haymarket on June 28 and play a limited engagement through August 23. Opening night is set for July 7. Lipman’s stage credits include When We Are Married, A Little Night Music, Oklahoma! and School for Scandal. Her screen credits include Ladies of Letters, Skins, He Kills Coppers, Sensitive Skin, The Pianist and Educating Rita. Shearer is making his West End debut; he has provided character voices for The Simpsons since it began in 1987, including the role of Mr Burns. Cotton’s writing credits include Wet Weather Cover for the stage and A Touch of Frost for the small screen. Set in New York in 1986, Joe (Shearer) and Elli (Lipman) share a love of ballroom dancing and are practicing their routines for the next big competition. Despite constant bickering, the love they have shared for nearly fifty years is clear. Then one night, out of the blue, Joe’s long-lost brother Billy bursts back into their lives with an extraordinary story to tell. Starring Lipman, Daytona had its world premiere at London’s Park Theatre in 2013. This production marks the Theatre Royal Haymarket’s first collaboration with an off-West End theatre venue.last_img read more