Electron acceleration at Jupiter: greater input from cyclotron-resonant interaction with whistler-mode chorus waves

first_imgJupiter has the most intense radiation belts of all the outer planets. It is not yet known how electrons can be accelerated to energies of 10 MeV or more. It has been suggested that cyclotron-resonant wave-particle interactions by chorus waves could accelerate electrons to a few MeV near the orbit of Io. Here we use the chorus wave intensities observed by the Galileo spacecraft to calculate the changes in electron flux as a result of pitch angle and energy diffusion. We show that, when the bandwidth of the waves and its variation with L are taken into account, pitch angle and energy diffusion due to chorus waves is a factor of 8 larger at L-shells greater than 10 than previously shown. We have used the latitudinal wave intensity profile from Galileo data to model the time evolution of the electron flux using the British Antarctic Survey Radiation Belt (BAS) model. This profile confines intense chorus waves near the magnetic equator with a peak intensity at ∼5° latitude. Electron fluxes in the BAS model increase by an order of magnitude for energies around 3 MeV. Extending our results to L = 14 shows that cyclotron-resonant interactions with chorus waves are equally important for electron acceleration beyond L = 10. These results suggest that there is significant electron acceleration by cyclotron-resonant interactions at Jupiter contributing to the creation of Jupiter’s radiation belts and also increasing the range of L-shells over which this mechanism should be considered.last_img read more

Multi-scale assessment of distribution and density of procellariiform seabirds within the Northern Antarctic Peninsula marine ecosystem

first_imgThe Antarctic Peninsula is one of the most rapidly warming regions on earth, and it is likely that the abundance and distribution of marine predators will change as a result.Procellariiform seabirds are highly mobile predators, which target specific habitat characteristics associated with underlying distributions of prey and areas of increased prey availability. We use ship surveys and hurdle models, to estimate the summer distribution and relative density of 11 seabird species within the northern Antarctic Peninsula marine ecosystem. Models differed among species; however, sea surface temperature and depth were frequently associated with seabird occurrence and had the greatest explanatory power across many species. Null models based on observation data were better at predicting seabird density than models that included environmental covariates. This suggests that the main driver of distribution patterns is the broad-scale habitat features, and fine-scale aggregations within these ranges are harder to predict. Our seabird distribution models reflect known habitat associations, species hotspots, and community organization relative to oceanic and coastal marine processes. Application of species distribution models will benefit the assessments of critical habitat and potential responses to climate change and anthropogenic disturbance, which will provide insight into how species may change in polar ecosystems.last_img read more

Haws scores 34, BYU turns back Pepperdine 87-76

first_imgJanuary 18, 2019 /Sports News – Local Haws scores 34, BYU turns back Pepperdine 87-76 FacebookTwitterLinkedInEmailMALIBU, Calif. (AP) — TJ Haws scored a career high with 34 points and matched his best with eight assists and BYU pulled away to defeat Pepperdine 87-76 on Thursday night. Eric Cooper Jr. hit a 3-pointer with 3:10 to play to pull the Waves within 76-73 but Haws made eight free throws and Childs had a 3-point play to close it out. Pepperdine missed its last four shots. Ross had 24 points for the Waves (9-10, 2-3) and Edwards had 22. There were 16 ties and 10 lead changes. Pepperdine’s last lead was 57-56 with 10:36 to go when Kameron Edwards converted a 3-point play to cap a 6-0 run. Colbey Ross made a pair of free throws for the Waves to tie the game at 62 but Haws hit a jumper and Yoeli Childs converted a 3-point play for a 67-62 lead at the Waves never caught up. Tags: BYU Cougars Basketball/TJ Haws/WCC Associated Press Written by Haws, who also had seven rebounds, went 18 of 22 from the foul line, career bests for attempts and makes. Childs had 20 points, his fourth straight 20-plus game, 13th this season and 28th in his career. Freshman Gavin Baxter had a career high 13 points for the Cougars (12-8, 4-1 West Coast Conference), going 5 for 5 from the field and 3 of 3 from the line, and had six boards and three blocks.last_img read more

MP tells Uni to help relieve homelessness

first_imgAn Oxford MP has called for the university to survey its properties to see if any could be used to relieve homelessness in the city.Anneliese Dodds, MP for Oxford East, told Cherwell: “It would be helpful if the University could undertake an audit of its properties to examine if any that are not being used could contribute to relieving homelessness, particularly as temporary provision during the winter months.”It followed her speech in the House of Commons on Tuesday where she spoke about about the “wrong-headed government policies” that are contributing to Oxford’s housing crisis.She told MPs that the city is the “least affordable place in Britain to buy a home,” and that an average home costs 16 times the average salary.According to Dodds, “benefit cuts and freezes; cuts to hostel funding by our city council as a result of central Government cuts; and cuts to support services in mental health and in addiction services” are the three factors that contribute to the “60 people sleep[ing] on our streets some evenings.”These factors are in addition to the lack of affordable housing, Dodds said. She also praised the “huge local efforts to improve the situation”, mentioning the 180 beds currently provided for rough sleepers and the coordination between Oxford’s churches and rough sleeping services “over the winter to try to unlock additional places.”She continued: “However, all of that has been against the grain of wrong-headed Government policies, which are stopping my city from being a city for everyone, which it always has been until now.“It is becoming a place where people can get on and be secure only if they are wealthy.” Dodds closed her speech by inviting the Secretary of State “to come to my city so that he can talk to those families in need. He will be able to talk to the overcrowded families – those whose children are sharing tiny bedrooms – and to those people sleeping on the streets to find out from them what needs to change.”Dodds told Cherwell: “We desperately need affordable housing in Oxford – and the University can play a major part in that. It’s understandable that the University has a focus on ensuring that its own academics and technicians are appropriately housed, but we also need to acknowledge that a lot of what would otherwise be family housing in our city is under pressure, due to increasing student demand.“We must also remember that the University would not be able to function without cleaners, caterers, maintenance workers etc. – and many of them are being priced out of Oxford.“It’s in the University’s interests as well as those of low-paid workers to pay a Living Wage, and to make as many sites as possible available for genuinely affordable housing. Magdalen and Brasenose Colleges seem to be positively working towards this, but we haven’t seen it across the board.”last_img read more

JUNE 8 2017 “READERS FORUM”

first_imgFacebookTwitterCopy LinkEmailShare Whats on your mind today?Todays “READERS POLL” question is: Are you pleased with the new layout and design of the City County Observer?We urge you to take time and click the section we have reserved for the daily recaps of the activities of our local Law Enforcement professionals. This section is located on the upper right side of our publication.If you would like to advertise or submit and article in the CCO please contact us City-County [email protected]last_img read more

In the market for… savoury muffins

first_imgby bakery consultant Wayne CaddyDelicious served warm or cold, these savoury muffins are perfect for mid-morning sales (see pgs 29-30 for more ideas on retailing savoury muffins)Edam, Bacon and Sun-dried Tomato MuffinsMakes 10 muffins (scale up to suit)IngredientsSmoked back bacon rashers 100gFlour 275gBaking powder 15ml (1tbsp)Caster sugar 5ml (1tsp)Salt 5ml (1tsp)Edam cheese, grated 125gChopped sun-dried tomatoes 75gFreshly snipped chives 30ml (2tbsp)Eggs 2Semi-skimmed milk 200mlMelted butter 75gMethod1. Grill the bacon until crispy, chop into pieces2. Stir the sugar, salt, three quarters of the cheese, bacon, sun-dried tomatoes and chives into the flour and baking powder and mix3. Add the eggs, milk and melted butter and mix to a batter. Fill muffin cases and sprinkle the tops with the reserved Edam. Bake for 20-25 mins at 190?CTop tipsl You can replace the bacon with cooked diced ham if requiredl For a completely different take on a breakfast muffin, try combining carrots, bran, mixed spice and raisinslast_img read more

Elephant Revival Announce Return To Red Rocks In 2017

first_imgThis past May, Elephant Revival was invited to headline the famed Red Rocks Amphitheatre for the first time, with support from Josh Ritter & The Royal City Band, Rising Appalachia, David Block, and the Human Experience. The quintet from Nederland, Colorado more than rose to the occasion, selling out the close to ten-thousand seat venue for their debut there and putting on a magical night of music in the most infamous venue of their home state.Coming off of their collaboration with the Colorado Symphony earlier this month, Elephant Revival announced that they would be returning to Red Rocks on May 21st, 2017, much to the delight of fans who are eager to see them return to the sacred outdoor space. The genre-defying ensemble will be joined by The Oh Hellos and Mandolin Orange, two folk duos hailing from Texas and North Carolina, respectively. Today, pre-sale tickets became available for Elephant Revival’s second return to Red Rocks. Join the group’s mailing list here to access the presale password for tickets to the event.For a taste of what to expect, check out this rendition of “Rogue River” from their performance at Red Rocks in 2014, when they played as support for DeVotchKa and Gregory Alan Isakov.last_img read more

Kung Fu Announces Early-2019 Winter Tour

first_imgToday, Connecticut-based funk-fusion outfit Kung Fu has announced a 2019 winter tour. The 11-city swing will keep the band—comprised of guitarist Tim Palmieri, saxophonist Rob Somerville, bassist Chris DeAngelis, keyboardist Beau Sasser, and drummer Adrian Tramontano—on the road throughout the first two months of the year.The tour will begin on January 10th with a performance at Killington, VT’s Pickle Barrel before continuing to Albany NY (1/11) and Manchester, NH (1/12). The following weekend, Kung Fu will head south for a three-night run at Key West, FL’s Green Parrot. From there, the band will mount a three-night, three city run through Stanhope, NJ (1/31); Syracuse, NY (2/1); and Mount Snow, VT (2/2) before heading to Harrisburg, PA (2/8) and Brooklyn, NY (2/9) the next weekend. Finally, Kung Fu will round out their tour with a performance at Baltimore, MD’s 8×10 on March 1st.Before they get to their newly announced tour, Kung Fu still has plenty on their schedule to keep them busy through the last few weeks of 2018 including a number of Florida dates, a hometown show at New Haven’s Toad’s Place (12/21), and a four-night, three-city run leading up to New Year’s Eve. For more information on Kung Fu’s upcoming dates, head to the band’s website.last_img read more

A.R.T. gala raises $1.4M for artistic, community programs

first_imgThe American Repertory Theater (A.R.T.) at Harvard University, under the leadership of Terrie and Bradley Bloom Artistic Director Diane Paulus and Executive Producer Diane Borger, raised a record $1.4 million in support of the theater’s artistic, community, and education programs at its annual fundraising gala held April 1. More than 500 guests attended the event at the Boch Center Wang Theatre that celebrated Paulus’ 10th anniversary season and honored Harvard President Emerita Drew Faust with the theater’s Angel Award.Faust dedicated much of her tenure as president to developing a more vibrant arts culture at Harvard. At the gala, she was recognized for elevating the role of the arts on the University’s campus and beyond.“I’ve seen how the arts can bring us together around issues that seem impossible to resolve,” Faust said in accepting the award.  “It is my hope that what we do at Harvard in the arts and in theater will somehow be an inspiration, a model, a contagion for the rest of the world.”Terrie and Bradley Bloom Artistic Director Diane Paulus (left) and Harvard President Emerita Drew Faust. Faust received the A.R.T. Angel Award at the gala. Photo by GretjenHelene.com“How lucky I was to arrive at the A.R.T. when you were president,” Paulus said to Faust. “You have been a mentor, and a guiding light for me for the past 10 years.”Paulus also acknowledged the A.R.T.’s Board of Trustees and Board of Advisors; Terrie and Bradley Bloom; Harvard partners President Larry Bacow, Provost Alan Garber, Dean Nitin Noria, Joe O’Donnell; and David and Stacey Goel.“I am humbled by the support in this room for this theater, our mission, and my journey here,” said Paulus. “Thank you so much for coming out this evening to celebrate this theater, Harvard University, and the arts.”Gala co-chairs were RoAnn Costin, Fay and Bill Shutzer, and Lis Tarlow and Steve Kay.The evening began with a performance by from The Gershwins’ “Porgy & Bess” by Sumayya Ali (“The Black Clown,” The Gershwins’ “Porgy and Bess”), who was followed by Desi Oakley (“Waitress” national tour), Betsy Wolfe (“Waitress” on Broadway), and Elizabeth Stanley (“Jagged Little Pill” at the A.R.T. and on Broadway this fall) who surprised Paulus and the audience with music from “Waitress” and “Jagged Little Pill,” two world premiere musicals that were developed and premiered at the A.R.T. Davóne Tines and members of the cast of “The Black Clown” — also developed and premiered at the A.R.T. — performed two songs that brought the audience to their feet.The gala’s live auction included packages to see the New York premiere of “The Black Clown” at Lincoln Center’s Mostly Mozart Festival; a private dinner with Gloria Steinem and Paulus before the opening night of A.R.T.’s 2019-20 production of “Gloria: A Life”; tickets to “Network” on Broadway and a meet-and-greet with Bryan Cranston (“All the Way”); and a “Jagged Little Pill” Broadway opening night experience.last_img read more

Officers Released After Not Guilty Plea

first_imgShare:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email this to a friend (Opens in new window),This Goes to Show you How Corrupt, The Buffalo Police are & The People as well to Support someone who Shoved an elderly Man to the Ground..I understand that the safety of the response team ,but c,mon..Use Some Common sense here ! What Damage Could he have Done to this Man! It’ Went VIRAL..they Will make an Example! Sorry !,Is this the entire video?? I heard that there was more prior to what we have seen that includes the man defying what he was told to do. Doesn’t make it right that he was pushed to the ground but if there is more video, let’s see it.,Unless he hit them or had a gun there was no excuse I don’t get you people who think like this Aaron Torgalski (left) and Robert McCabe (right).BUFFALO – Two Buffalo Police officers plead not guilty to second-degree assault after allegedly shoving a 75-year-old man to the ground during a protest this week.A crowd of fellow police officers and supporters cheered outside the courthouse Saturday as Robert McCabe and Aaron Torgalski walked out.Both were suspended after video surfaced of them shoving the man to the ground, causing his head to bleed. The incident happened after curfew during a Black Lives Matter protest outside city hall.While some have called for the police officers to be fired, McCabe and Torgalski remain suspended without pay. Both face a felony hearing July 20, due to the age of the man. They were released without bond. New York Governor Cuomo said he was sick to his stomach when he saw the incident on video.Over 50 officers resigned from the emergency response team on Friday.Buffalo’s Mayor Byron Brown said that’s because they felt pressured by the police union.last_img read more