Real time detection of airborne fluorescent bioparticles in Antarctica

first_imgWe demonstrate, for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey’s Halley VI Research Station, located on the Brunt Ice Shelf close to the Weddell Sea coast (lat 75°34′59′′ S, long 26°10′0′′ W) during Antarctic summer, 2015. As part of the NERC MAC (Microphysics of Antarctic Clouds) aircraft aerosol cloud interaction project, observations with a real-time ultraviolet-light-induced fluorescence (UV-LIF) spectrometer were conducted to quantify airborne biological containing particle concentrations along with dust particles as a function of wind speed and direction over a 3-week period. Significant, intermittent enhancements of both non- and bio-fluorescent particles were observed to varying degrees in very specific wind directions and during strong wind events. Analysis of the particle UV-induced emission spectra, particle sizes and shapes recorded during these events suggest the majority of particles were likely a subset of dust with weak fluorescence emission responses. A minor fraction, however, were likely primary biological particles that were very strongly fluorescent, with a subset identified as likely being pollen based on comparison with laboratory data obtained using the same instrument. A strong correlation of bio-fluorescent particles with wind speed was observed in some, but not all, periods. Interestingly, the fraction of fluorescent particles to total particle concentration also increased significantly with wind speed during these events. The enhancement in concentrations of these particles could be interpreted as due to resuspension from the local ice surface but more likely due to emissions from distal sources within Antarctica as well as intercontinental transport. Likely distal sources identified by back trajectory analyses and dispersion modelling were the coastal ice margin zones in Halley Bay consisting of bird colonies with likely associated high bacterial activity together with contributions from exposed ice margin bacterial colonies but also long-range transport from the southern coasts of Argentina and Chile. Dispersion modelling also demonstrated emissions from shipping lanes, and therefore marine anthropogenic sources cannot be ruled out. Average total concentrations of total fluorescent aerosols were found to be 1.9 ± 2.6 L−1 over a 3-week period crossing over from November into December, but peak concentrations during intermittent enhancement events could be up to several tens per litre. While this short pilot study is not intended to be generally representative of Antarctic aerosol, it demonstrates the usefulness of the UV-LIF measurement technique for quantification of airborne bioaerosol concentrations and to understand their dispersion. The potential importance for microbial colonisation of Antarctica is highlighted.last_img read more

Arcade Fire Releases First New Track Since 2013, “I Give You Power”, Featuring Mavis Staples

first_imgJust a week or so ago, we reported on a story which claimed that Arcade Fire had finished working on new music. The band officially validated those claims by releasing a brand new track, “I Give You Power,” featuring vocal contributions from the legendary Mavis Staples. The new track is the band’s first in nearly four years, and a strong indication that more tunes are on the way!The track was released via TIDAL, and all proceeds from purchasing the track will go to ACLU. You can stream it below. The track also came with some artwork that you can see below.last_img read more

Biotech Breakthrough

first_imgPappu worked to find the secret of when the thrips can transmit TSWV. He’s usingnew biotech methods to detect specific proteins that appear only when the insect cantransmit the virus. And they’re doing it quickly. “The presence of the viral protein is a good indication that the insect was capable oftransmitting the virus,” Pappu said. Pappu points out, too, that the 10 percent average is just that. “Some farmers lost only1 percent or 2 percent,” he said. “Others may have lost close to 50 percent.” The three main crops the virus affects are peanuts, tobacco and tomatoes. But manyothers are affected. In these three crops alone, Georgia farmers lost $63.8 million in1996. The virus affects the crops differently, but the results are the same: decreasedyields and crop loss. Viruses rely on carrier insects, he said. The TSWV relies on tiny insects called thripsto move from plant to plant and field to field. “Tomato spotted wilt virus is the No. 1 problem in the state’s crops,” said Hanu R.Pappu, a plant pathologist at the Coastal Plain Experiment Station. “Last year alone, itcaused an average 10 percent loss in many affected crops.” Past efforts to control tomato spotted wilt by controlling the insects didn’t work. “Wejust didn’t know at the time that only certain populations were transmitting,” he said. The first problem farmers have with the virus is knowing when it’s in their fields.Since it’s a virus, Pappu said, there’s no cure. The method he uses is called TAS ELISA; Triple Antibody Sandwich, Enzyme-LinkedImmunoSorbent Assay. It uses virus-specific antibodies that reveal if viral proteins arein the insect. In past years, Georgia farmers had a tough row to hoe in many crops in fighting thedeadly tomato spotted wilt virus. Now, new technology can give them an edge inmanaging the virus. But while about a dozen species of thrips live in Georgia, only two can transmitTSWV. “And those two species can transmit the virus only when the insect wasinfected as a juvenile,” Pappu said. For the first time, Georgia scientists can learn in just one day if insects in the field areactually transmitting the virus. Pappu is working with another plant pathologist and an entomologist at the experimentstation to learn the secrets of the virus that causes tomato spotted wilt. Once they learnits secrets, they can use them to fight against the tiny but destructive organism. Before, scientists needed six to eight weeks to find out if a thrips population wastransmitting the virus. “Now this technology can tell us in one to two days,” he said. “So prevention is extremely important,” he said. “There is no control, so we’re tryingto get it to a point where we can manage the disease through other means.” Pappu’s goal is to forecast when a transmitting population is moving into a field.Armed with that knowledge, farmers can apply pesticides to kill the insects before theycan transmit the virus into the plants. “This information will allow them (farmers) to be more precise in applying chemicals,”Pappu said. “To be effective with our applications, we needed an efficient, quick wayto know if the population was transmitting.” Now they have it.last_img read more

Social media & credit unions: Top 3 improvements

first_imgCredit unions have heard it for years now—“you’ve got to be on social media.” Many credit unions have recognized this necessity and are active on multiple social media platforms, including Facebook, Twitter and YouTube. Is it making the impact they are hoping for?“According to a survey fielded by Third Degree Advertising, 41% of credit union marketers think social media is very important to their marketing strategy and 74% said their organization intends to increase its level of social media use in the future. Yet 53% of respondents rated their credit union’s social media efforts as not effective in helping them achieve marketing goals.” continue reading » 20SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblrlast_img read more

NAFCU-backed reg relief bills advance out of committee

first_imgThe House Financial Services Committee passed a host of NAFCU-backed regulatory relief bills out of committee yesterday following a two-day mark-up that addressed Home Mortgage Disclosure Act (HMDA) improvements and tailoring of regulations to limit burdens on affected institutions. One approved bill would also raise the CFPB supervision and examination threshold from $10 billion to $50 billion.“We thank Chairman [Jeb] Hensarling and the committee for recognizing the regulatory burden facing today’s credit unions and for advancing legislation that would provide some regulatory relief,” said NAFCU President and CEO Dan Berger. “We are pleased to see a number of these bills get bipartisan support and look forward to continuing to work with lawmakers as these bills now await House action.”NAFCU Vice President of Legislative Affairs Brad Thaler sent a letter to the committee on Tuesday, urging action on the regulatory relief measures that would help credit unions. 9SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr continue reading »last_img read more

5G technology and the opportunities for credit unions

first_imgCredit unions tend to be on the forefront of financial health; implementing enterprise-level and consumer-centric strategies, designing high-quality products and services, and measuring their members’ outcomes so they can pursue long-term opportunities. However, the landscape in and around financial services is shifting dramatically with the emergence and application of new disruptive technologies.To help credit unions understand this ever-changing landscape, the Foundation partnered with Members Development Company (MDC) and the Financial Health Network (FHN) in 2019 to research emerging technologiesand how they will help credit unions grow, meet their members where they are in life and provide them with new opportunities. Here are the key findings from that initial research: This is placeholder text continue reading » ShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblrcenter_img This post is currently collecting data…last_img read more

PREMIUMTourism sector suffers $1.5 billion losses as Covid-19 hits hard

first_imgFacebook Indonesia tourism hotels restaurant impact coronavirus epidemic loss LOG INDon’t have an account? Register here Forgot Password ? Topics : Linkedin Log in with your social account The Indonesian tourism sector has suffered losses of at least US$1.5 billion since January as cancelations have hit the industry, especially hotels, amid growing fears over the outbreak of the novel coronavirus, an industry source has said.Chairman of the Indonesia Hotel and Restaurant Association (PHRI) Hariyadi B. Sukamdani said that of the total estimated losses, about $1.1 billion occurred as a result of cancelations made by tourists from China and the remaining $400 million resulted from cancelations made by tourists from other countries.“The losses are growing as people prefer to stay at home rather than going on vacation,” Hariyadi, who also chairs the Indonesia Employer’s Association (Apindo), said in Jakarta on Thursday.He said that other related businesses such as the suppliers of hotels for their daily operations, which mostly comprise small- and … Googlelast_img read more

Thomas Meunier reveals transfer talks amid Arsenal and Man Utd speculation

first_img Comment Advertisement Advertisement Thomas Meunier has been linked with a move away from PSG (Picture: Getty)PSG defender Thomas Meunier has admitted that he has held talks with a dozen interested clubs since January amid speculation linking him to both Arsenal and Manchester United this summer.The 27-year-old has been linked with a £22m move away from PSG where he has spent the past three seasons with the Premier League tipped to be his next destination.Arsenal boss Unai Emery, who worked alongside Meunier during two seasons in the French capital, is particularly keen to sign the Belgian having encountered problems at right-back last season.Meunier has been coy over his future in recent weeks and hinted that he could leave PSG next summer on a free transfer should the club fail to receive a substantial bid for his services in the current transfer window.ADVERTISEMENT Thomas Meunier reveals transfer talks amid Arsenal and Man Utd speculation Metro Sport ReporterTuesday 4 Jun 2019 3:49 pmShare this article via facebookShare this article via twitterShare this article via messengerShare this with Share this article via emailShare this article via flipboardCopy link188Shares Unai Emery worked with Meunier at PSG (Picture: Getty)‘It’s something that could suit me,’ Meunier told Le Parisien when asked whether he could leave at the end of his contract next summer.AdvertisementAdvertisement‘I don’t think the club would make a lot of money from me, actually. I have a market value, but I’m a defender, I play one game out of three and I’m turning 28.‘It’s not like Adrien [Rabiot], who is worth €50m.’Although Arsenal and United appear to be the frontrunners to sign Meunier should he depart PSG, he insisted that a number of clubs have made contact over signing him.Meunier added: ‘There have been phone calls since January with interested clubs. There are a dozen clubs, all of which are in the top five of their leagues.’More: FootballRio Ferdinand urges Ole Gunnar Solskjaer to drop Manchester United starChelsea defender Fikayo Tomori reveals why he made U-turn over transfer deadline day moveMikel Arteta rates Thomas Partey’s chances of making his Arsenal debut vs Man CityAlthough Meunier was not a guaranteed starter for Thomas Tuchel last season, he still made 31 appearances in all competitions, scoring five goals and registering four assists.Emery is keen to sign Meunier to provide competition for Hector Bellerin while Ole Gunnar Solskjaer has earmarked him as a possible successor to the departing Antonio Valencia.More: Manchester United FCRio Ferdinand urges Ole Gunnar Solskjaer to drop Manchester United starNew Manchester United signing Facundo Pellistri responds to Edinson Cavani praiseEx-Man Utd coach blasts Ed Woodward for two key transfer errorslast_img read more

Public outcry kept interest rates down, inquiry into big banks finds

first_imgAustralia’s big four banks were all part of the inquiry which is looking into residentialA FEDERAL inquiry investigating the decision making processes of Australia’s biggest banks has found that public outcry was sometimes the only thing preventing them from pushing mortgage rates higher.And the interim report of the Australian Competition & Consumer Commission’s residential mortgage price inquiry also highlighted the need for greater transparency in mortgage rate discounts offered by the banks.The interim report, out today, pointed to public criticism and media attention acting as a handbrake on bank ambitions to raise rates to boost margins.“Expectations of strong public reaction have acted as a constraint on pricing decisions,” it said, “ … without this reaction residential mortgage interest rates could have been higher and/or increases could have been introduced earlier.”“ … In one case, for example, an Inquiry Bank began considering an interest-rate increase, but staff recommended deferring any increase until a ‘trigger event’ occurred (either an Official Cash Rate change or a rate change by a big four bank) due to concerns about adverse publicity,” the report said. “At a different Inquiry Bank, as another example, a proposal to increase fees was substantially modified due to concern about reputational damage.”The inquiry also warned that there were “signs of a lack of vigorous price competition” among the Big Four banks in particular.“The internal documents of the Inquiry Banks reviewed by the ACCC to date reveal a lack of vigorous price competition between the Inquiry Banks, and the big four banks in particular.More from newsParks and wildlife the new lust-haves post coronavirus20 hours agoNoosa’s best beachfront penthouse is about to hit the market20 hours ago“The pricing behaviour of each of the Inquiry Banks appears more consistent with ‘accommodating’ a shared interest in avoiding the disruption of mutually beneficial pricing outcomes, rather than consistently vying for market share by offering the lowest interest rates.”The Big Four banks make up the lion’s share of the market, around three quarters.The Australian Banking Association was quick to defend competition levels in the banking sector, stating there were “over 140 providers, offering over 4,000 home loan products”.“Truly a vast and competitive market for Australians to choose a home loan.”It also said there were “very high levels of discounting in the Australian home loan market”.“It’s clear that competition is delivering better deals for customers, shopping around works and Australians should continue to do so to get the best discounts on the advertised rate.”The ABA said Galaxy research had found that three million people had switched banks in the last three years — with two-thirds finding that “switching was an easy process”.The ACCC was expected to issue its final report after the end of this financial year, delving into how the banks passed on the cost of the Major Bank Levy, as well as how smaller lenders can compete with bigger banks and how consumers can change residential mortgage pricing.last_img read more

How to take suburban isolation to a new level

first_img The kitchen has been renovated in a modern style.Ray White Robina agent Karyn O’Dea said the property had attracted strong interest from buyers drawn by the unusual design and the location.More from news02:37Gold Coast real estate: Custodian CEO John Fitzgerald urges Australians to buy more property now16 Sep 202002:37How COVID has changed spring buyer wishlists5 Sep 2020“Everyone who has looked through has said, wow,” she said.“It’s really unique, but it’s still got that modern touch.” Logs create a cosy feel in the bedroom at 17 Sandringham Drive, Robina.Except this is no shabby bush shack and it’s located in the central suburb of Robina Waters.The unusual home at 17 Sandringham Drive features pitched cedarwood ceilings, exposed cypress logs and, of course, a fireplace. Lots of logs in the study too.Despite the cosy appeal, Ms O’Dea has taken a proactive approach to ease any concerns around termites by addressing the issue head-on in the listing. “That is the first thing most people think of when there’s so much timber,” she said.“But termites do not like cedarwood or cypress – and that’s DO NOT in caps.” The 794sq m block is surrounded by trees and backs onto a nature strip and is only five minutes from Robina Town Centre. Luxury home sold as new restrictions announcedcenter_img The log house has been renovated at 17 Sandringham Dr, Robina.Now that we’re all bunkering down for a longer haul than expected, you might want to take isolation to a whole new level in the suburbs: Step 1, this log cabin, yes really.It’s no wonder a home built from cedarwood and cypress logs in a leafy pocket of the Gold Coast is attracting its fair share of interest.At first glance, you could be forgiven for thinking that you’d stumbled across a secluded log cabin tucked away somewhere in the Hinterland. Exposed beams and logs are a feature in the living area.Built in 1990, the log house caused a stir in the street at the time with some residents opposing the design as being out of character for the neighbourhood. The original home has been extensively renovated by the current owner who has put it to market with an asking price of $725,000. MORE NEWS: Isolated property demand surges after coronaviruslast_img read more