Contrasting the responses of three different ground-based instruments to energetic electron precipitation

first_imgIn order to make best use of the opportunities provided by space missions such as the Radiation Belt Storm Probes, we determine the response of complementary subionospheric radiowave propagation measurements (VLF), riometer absorption measurements, cosmic noise absorption, and GPS-produced total electron content (vTEC) to different energetic electron precipitation (EEP). We model the relative sensitivity and responses of these instruments to idealized monoenergetic beams of precipitating electrons, and more realistic EEP spectra chosen to represent radiation belts and substorm precipitation. In the monoenergetic beam case, we find riometers are more sensitive to the same EEP event occurring during the day than during the night, while subionospheric VLF shows the opposite relationship, and the change in vTEC is independent. In general, the subionospheric VLF measurements are much more sensitive than the other two techniques for EEP over 200 keV, responding to flux magnitudes two-three orders of magnitude smaller than detectable by a riometer. Detectable TEC changes only occur for extreme monoenergetic fluxes. For the radiation belt EEP case, clearly detectable subionospheric VLF responses are produced by daytime fluxes that are ∼10 times lower than required for riometers, while nighttime fluxes can be 10,000 times lower. Riometers are likely to respond only to radiation belt fluxes during the largest EEP events and vTEC is unlikely to be significantly disturbed by radiation belt EEP. For the substorm EEP case both the riometer absorption and the subionospheric VLF technique respond significantly, as does the change in vTEC, which is likely to be detectable at ∼3–4 total electron content units.last_img read more

Post-Doctoral Fellow – Myosin Phosphatase

first_imgPost-doctoral research position in Division of CardiologyUniversity of MarylandA full time Post-Doctoral fellowship position is available in thelaboratory of Dr. Steven Fisher in the Division of Cardiology atthe University of Maryland-Baltimore as of April 1, 2019. Thefederally funded project examines vascular smooth muscle geneexpression and contractility in the regulation of blood flow indevelopment and disease models. The focus is on the myosinphosphatase (MP), a critical target of signals that regulate bloodflow. Experiments will test the hypothesis that editing of MPlowers blood pressure in models of hypertension and heart failure,and will determine the mechanism(s) by which it does so. Thepost-doc will perform experiments in animal models using Cre-Loxand AAV-Crispr/Cas9 editing of MP in vivo. The AAV-Crispr/Cas9approach of editing is in pre-clinical development as a noveltherapy for humans with hypertension and heart failure. Applicantsare required to have a Ph.D. or M.D. and expertise in techniques ofcell and molecular biology. Familiarity with experimentaltechniques required for the study of small blood vessels ispreferred but not required.If interested please email a CV, a short statement of researchinterests, and the names and contact information for threereferences to:Steven Fisher, MD, Professor of Medicine and Physiology,[email protected] :Applicants are required to have a Ph.D. or M.D. and expertise intechniques of cell and molecular biology. Familiarity withexperimental techniques required for the study of small bloodvessels is preferred but not required.University of Maryland is an Equal Opportunity Employer encouragingexcellence through diversity. Qualified woman and minoritycandidates are encouraged to apply.last_img read more

Union City man charged in fatal Jersey City crash

first_img ×CHARGES FILED IN TONNELLE AVENUE DEATHS — Alex Torres, 31, of Union City, surrendered to authorities after being charged with death by auto from a Feb. 11 crash on Tonnelle Avenue in Jersey City CHARGES FILED IN TONNELLE AVENUE DEATHS — Alex Torres, 31, of Union City, surrendered to authorities after being charged with death by auto from a Feb. 11 crash on Tonnelle Avenue in Jersey City JERSEY CITY – Alex Torres, 31, of Union City, surrendered to members of the Hudson County Regional Fatal Collision Unit on March 20, and has been charged with two counts of death by auto, two counts of causing death or injury while driving on a suspended license, and three counts of assault by auto, for his involvement in a Feb. 11 crash in Jersey City that killed two Union City residents.He was scheduled for a court hearing on March 22.Hudson County Prosecutor Esther Suarez credited the newly formed Hudson County Regional Fatal Collision Unit with the investigation and arrest, as well as the Jersey City Police Department for assisting in the investigation.On Feb. 11 at approximately 3:20 a.m., the Jersey City Police Department responded to a report of a vehicle collision in the area of 608 Tonnelle Avenue in Jersey City between Manhattan Avenue and North Street. Responding Jersey City police officers found an overturned white 2006 Honda Accord in the northbound lanes of the roadway and a second vehicle, a red 2006 Toyota Corolla, located nearby on the sidewalk of the northbound lanes.The initial investigation showed that there were two fatalities who were passengers in the red vehicle. The first victim was a male, later identified as Mario Guevara, 25, of Union City. The second victim was a female, later identified as Heather Acosta, 24, of Union City. The two victims were pronounced dead at the scene shortly after 4:10 a.m. In addition, there was a driver and passenger in the red vehicle and also a driver and additional passenger in the white vehicle. All were transported to Jersey City Medical Center by Emergency Medical Services for treatment of their non-life-threatening injuries.last_img read more

Norwich’s Metfield bakery opens first shop

first_imgNorwich-based organic craft baker Metfield is planning to open a small chain of shops.Owner Stuart Oetzmann told British Baker that he had just bought the company’s first retail outlet in Norwich. The shop has a delicatessan, an on-site kitchen with full production facilities and there are plans to install a café. It will be simply branded Metfield’s. Oetzmann said he would like to see the chain grow to “around five or six shops”.Oetzmann also plans to open a 50-seater restaurant in Snape Maltings, Aldeburgh in Suffolk and an artisan bakery in London’s Chelsea. Metfield specialises in making pies, cakes, savoury tarts and organic bread, supplying nearby customers as well as markets and London shops. It uses produce from its own farm where possible, and believes in using high-quality, locally-sourced ingredients. For more information see www.metfieldbakery.com.last_img read more

UK wholesale dairy prices

first_imgUnsalted butter, skimmed milk powder (SMP) and bulk cream all dipped in price from July to August, but are still up on this time last year, according to the latest report by DairyCo Datum price update.The wholesale price of unsalted butter fell £100 per tonne (p/t) to £3,500 (2010: £3,300 p/t); while SMP fell from £2,200 p/t to £2,100, (2010: £1,900 p/t).Bulk cream dipped slipped to £1,580 p/t from £1,600 (2010: £1,420 p/t). Both mild and mature cheddar held steady at £2,975 p/t and £3,200 p/t respectively. Mild cheddar stood at £2,800 p/t this time last year, while mature cheddar was £3,050 p/t. DairyCo said that milk production conditions had remained favourable across most of the UK, leading to a continued increase in year-on-year milk deliveries, following a rise of just under 2% in July.”UK markets have been particularly quiet since mid-July and this, accompanied by a good volume of milk supplies, has put some downward pressure on most commodity market sectors,” said the report.last_img read more

LaPorte man charged with multiple counts of child molestation

first_img Pinterest WhatsApp Google+ Facebook Twitter Pinterest Facebook WhatsApp (Photo supplied/LaPorte County Jail) A LaPorte County man has been arrested, accused of child molestation.Police were called on Thursday, March 11, to a home in rural Union Township on the report of a sex offense.While en route, they were advised that a man who lived nearby the home they were going to wanted to surrender for the same offense.A sheriff’s deputy arrived at the victim’s home where he met with the parents and the victim while another deputy met with the suspect, William R. Hoaglan, 42, who was taken to the LaPorte County Jail.He’s now charged with six counts of child molestation and it being held on a $100,000 cash only bond. Google+ Previous articleLaPorte County man dead after falling from bridge into Trail CreekNext articleGoshen boy, 16, arrested on burglary and rape charges Jon ZimneyJon Zimney is the News and Programming Director for News/Talk 95.3 Michiana’s News Channel and host of the Fries With That podcast. Follow him on Twitter @jzimney. Twitter By Jon Zimney – March 15, 2021 0 396 LaPorte man charged with multiple counts of child molestation IndianaLocalNewslast_img read more

Press release: New chairman of HMCTS board appointed

first_img We congratulate Tim Parker on his appointment, and pay tribute to his predecessor, Robert Ayling who chaired the Board and led the organisation with dedication, integrity and skill for the last seven years. Tim takes up the reins at a critical time and we look forward to working closely with him. Tim’s expertise will be vital as we deliver our reform and modernisation of the courts and tribunals system – making it more convenient, easier to use, and providing better value for the taxpayer. I would like to place on record my sincere thanks to Robert for his outstanding service to HMCTS and the wider justice system through his chairmanship over the past seven years. I am delighted to be joining HMCTS and look forward to spearheading its programme of reform – bringing courts and tribunals into the digital age and ensuring they are providing the best service possible for the public. The Lord Chief Justice of England and Wales, Lord Burnett of Maldon, and the Senior President of Tribunals, Sir Ernest Ryder, said:center_img Lord Chancellor David Gauke said: Tim Parker will take up his new position as Chairman of the Board of HM Courts & Tribunals Service (HMCTS) on 27th April.The Board is responsible for overseeing the leadership and direction of HMCTS and ensuring that it effectively delivers the aims and objectives set by the Lord Chancellor, the Lord Chief Justice and the Senior President of Tribunals. The Chair provides leadership, vision and direction – ensuring HMCTS is driving forward the Government’s £1 billion reform of courts and tribunals.Tim will bring a wealth of knowledge and experience in business transformation and is currently chairman of the Post Office, Samsonite and the National Trust. He previously spent time as an economist in the Treasury and was chief executive of Clarks, Kwik-Fit and the AA.His appointment has been made by the Lord Chancellor, Lord Chief Justice and Senior President of Tribunals.He will formally take up the post at the end of April, following the retirement of Robert Ayling, who has served as Board Chairman since HMCTS was established in 2011. Robert has overseen the design and implementation of the transformation programme for the courts and tribunals service, which will streamline working practices, update and replace currently outdated technology and provide much improved services for users.Tim Parker, incoming chairman of the Board of HMCTS, said:last_img read more

Staying power for shale gas

first_imgThe natural gas boom that transformed the energy picture in the United States in the last decade is still in its infancy, says John Shaw, chair of Harvard’s Earth and Planetary Sciences Department.Shaw, the Harry C. Dudley Professor of Structural and Economic Geology and a professor of environmental science and engineering, expects natural gas to continue to displace coal in electricity generation. It is projected to become the nation’s largest electricity-generating fuel by 2040.In addition, he said, opportunities for expanding the market lie in export to energy-hungry nations such as Japan, which has curtailed nuclear power in the wake of the Fukushima disaster, and, closer to home, in the U.S. transport sector, where trucking fleets provide another opportunity, perhaps first through the installation of natural gas filling stations along highways. Further, the low cost of natural gas has set a new standard for the energy sector.It was the marriage of two existing technologies — hydraulic fracturing, or “fracking,” and horizontal drilling — that created the shale gas boom, Shaw said, holding a piece of shale. Rose Lincoln/Harvard Staff Photographer“Nothing has had a more profound impact on the U.S. and global energy economy in the past decade than the emergence of shale gas resources,” Shaw said. “It has already essentially transformed the United States from a net gas importer to one that will be exporting natural gas. It has provided a low-cost fuel that has spurred the development of industry and, in many respects, it has become the preferred way that we generate electricity. The cost of doing so defines the baseline with which all other energy options must be able, or be made able, to compete.”Shaw, whose areas of focus as a researcher include earthquake hazard assessment and petroleum exploration, spoke Tuesday at the Geological Lecture Hall in an event sponsored by the Harvard Museum of Natural History. The talk was titled “North America’s Shale Gas Resources: Energy and Environmental Perspectives.”Drillers have long known that gas is released when shale beds are penetrated, but the pores in the rocks are so small that they hold onto their gas — and oil as well — tightly, so that very little flows into the borehole. For decades that left petroleum firms to focus on resources found in other formations, whose more porous rock allowed gas to flow in commercially viable quantities.It was the marriage of two existing technologies — hydraulic fracturing, or “fracking,” and horizontal drilling — that created the shale gas boom, Shaw said. Companies began drilling down thousands of feet directly into the shale formations and then drilling horizontally along them. Today, workers line the boreholes with a concrete casing, perforated at particular spots where the fracturing will occur. Then they pour in the fracturing fluid, made up largely of water and sand but with a mix of other chemicals as well. That liquid is pressurized and forced through the holes in the casing into the surrounding rock, with enough force to fracture the rock. The sand particles prop open the fractures, allowing the gas to flow more freely into the borehole.Shaw said that some of the problems that have generated opposition to the process — contamination of water supplies, induced earthquakes, and methane release into the atmosphere — come not from the fracking, but from associated activities that could be improved upon.Because it occurs thousands of feet below the water table, fracking itself probably does not release fluids into the water, Shaw said. The likelier explanation, he said, is that failure of the concrete casing higher in the borehole allows fluids to escape into water supplies. The issue is familiar and strategies exist to detect weak spots, he said, citing the role of casing failure in the 2010 Deepwater Horizon disaster. A device called a sonic scanner, which can help determine the thickness of a casing, was sent home from the drilling platform without being used before the blast, which left 11 dead.Fracking is probably not a direct cause of associated earthquakes, Shaw said, noting that the pressure to fracture the rock is applied for only minutes and is followed by the gas flowing from the rock into the borehole, which actually lowers the pressure in the surrounding rock. Instead, Shaw said, it is the disposal, by injection into the earth, of the ample waste liquid the process generates that is largely responsible for generating quakes. Some firms are now looking at recycling wastewater as an alternative.The release of methane is a particular concern because it is a much more potent greenhouse gas than carbon dioxide. These releases and possible methods for controlling them are still being studied, Shaw said. Methane release is a systemic problem, contributed to in part by aging distribution infrastructure. Shaw cited a study of Boston’s natural gas infrastructure that found even higher losses — between 2 percent and 3 percent — than the rate generated by fracking.Still another concern stems from the economic success of natural gas. While some see low gas prices as beneficial to the environment because they undercut coal, which releases about twice the carbon dioxide as natural gas, the same prices also undercut cleaner renewable sources. It is up to citizens and their representatives, Shaw said, to determine an energy mix. If renewables are desirable, action has to be taken to make them competitive, through subsidies, tax credits, or even a broader carbon tax, which would increase the price of fossil fuels.“It’s fair to say we’re not at the end of this era, we’re at the very beginning.”last_img read more

Early goals for new curator

first_imgWhen Soyoung Lee takes the reins as the Harvard Art Museums’ chief curator in September, she will be joining the institution at a vibrant time.“The Harvard Art Museums have this incredible history,” said Lee, speaking by phone from the Metropolitan Museum of Art in New York, where she is currently curator in the Department of Asian Art. In 2014, she noted, the museums “opened this expanded, renovated, beautiful building and brought the three museums [the Fogg, Busch-Reisinger, and Arthur M. Sackler] together, which is an amazing feat. What are the next steps? Where are the Harvard Art Museums going through the 21st century? To think of that big picture, about institutional priorities, institutional direction, is really exciting.”For Lee, who has spent the last 15 years at the Metropolitan, the challenges of a teaching museum won’t be entirely foreign. At the Met, in addition to serving as the museum’s first curator of Korean art, she has been the chair of the Forum of Curators, Conservators, and Scientists,­ the Met’s academic body comprising more than 200 members, and subsequently served as its delegate to the board of trustees.In these roles, she said, she found herself “thinking about the broader museum’s mission and leading that group and advocating for scholarship and the work of that academic group.”This experience has given her museum work greater scope. “As a curator, you’re focused on your own projects,” explained Lee. One of the most attractive parts of the chief curator role, she continued, is that “it takes me into leadership.”“I’ve been nurtured by many fantastic people, and I’d like to return that,” she said. “Mentoring the next generation is important to me, and in this role I’ll have a much bigger capacity to do that.”One of Lee’s first projects will be re-examining the museum’s training programs, including its internships, said Martha Tedeschi, Elizabeth and John Moors Cabot Director of the Harvard Art Museums. In particular, the two-year, postdoctoral program for curators and conservators needs to be “pulled together and formalized,” Tedeschi explained.“It’s a program that we’re very proud of, but it’s a little ad hoc right now,” said Tedeschi. “We want to try to look at ourselves more holistically as a place that is honing its expertise in training and teaching.”“I’m really looking forward to essentially training the next generation,” said Lee. “We’re doing a great job with the students, and I’d like to make sure that’s at the highest level it can be.”Lee’s mandate reaches beyond the University. “Since the museum reopened in 2014, we’ve re-established ourselves as one of the premier teaching museums in the country,” said Tedeschi. “But we also have a responsibility as a public museum, and we strive to have local, national and international impact. Coming from the Met, Lee has the drive to help us realize both the campus role and our civic role.”For Lee, that means looking at “the whole next generation around the Cambridge area and the Greater Boston area, and the way we can impact and change their lives.”Lee also will be re-examining the role of contemporary art at the museums. “It’s a crucial topic,” she said. “And there are many different roles the University can play.”Referencing the nearby Carpenter Center for the Visual Arts, and other arts institutions in the area, Lee noted, “It feels like a moment where everyone is looking to collaborate. In terms of my own projects, almost all of the exhibitions involved collaborations, in the broadest sense.” In her first Met role, for example, “I was very much focused on presenting Korean art in the broader Asian or East Asian context.” In addition to working with the museum’s other departments, she arranged loans and international partners.“That’s something I can bring as well,” she said. If there are “usual and perhaps unusual partners as well, I’m on it.” In her capacity as chief curator, many of those partners will likely be found in the University community. “The Harvard alumni network is vast, and simply amazing people, and many are art lovers and collectors.”Summing up her years at the Met, Lee sounded eager to move forward. “This is an amazing place, but in one’s life there are certain moments when one is ready for bigger challenges and different challenges as well,” she said.“The Harvard Art Museums in physical structure perhaps is smaller” than the Met. “But as is befitting the University it sits in, it’s a world-class collection, the new building is amazing, and the staff is world-class as well. This is an enormous challenge that presents a lot of opportunities that are very different from my current role.“Being part of the mission of teaching and training the next generation and to be part of this breathtaking entity that is Harvard,” said Lee, “it’s exciting.”last_img read more

Dance Marathon drive kicks off

first_imgThe Saint Mary’s Dance Marathon may not take place until March, but fundraising efforts will kick off Thursday with the help of local favorite Let’s Spoon Frozen Yogurt. The Dance Marathon raises funds and awareness for the young patients of Riley Hospital for Children throughout the school year. The marathon engages the College and surrounding community in support of Riley’s mission, said Amy Tiberi, Dance Marathon president. Tiberi said she is excited to host Give Back Night at the local yogurt shop, which will contribute 20 percent of sales from customers presenting a voucher. “Let’s Spoon has been a great local business to work with and we greatly appreciate their support,” she said. “Just printing off our flier at smcdancemarathon.com and bringing it to the store will benefit our cause of helping the Riley Hospital for Children.” Senior Taylor Romens, a returning participant of the Dance Marathon, felt the choice of venue was ideal for the hot summer months. “I think that Let’s Spoon’s involvement with Dance Marathon is a great way to give back to the community while also promoting their product,” Romens said. “It is still pretty hot outside, so cooling off with a nice cup of frozen yogurt while giving back is a great way to end the summer nights.” Tiberi said she hopes to build off the marathon’s past successes. “Entering our eighth year is a really great accomplishment in itself,” she said. “We have now raised over $460,000 to date.” Tiberi said she hoped the charitable cause would draw interest from Notre Dame as well as the College’s campus. “One of our goals for this year is to have more involvement from Notre Dame and to continue to spread awareness across the campuses,” Tiberi said. “I personally hope that everyone on campus can identify with our cause to support Riley Hospital for Children and recognize that nights like Give Back Night and Marathon Night are for more than just dancing on campus.” Tiberi said the marathon offers the Indiana community more than financial support. “We are doing this for kids all over the state of Indiana,” she said. “That is why Dance Marathon is such a special organization, because it reaches the lives of many and fills many more with hope.”last_img read more