Learning catalysts’ secrets

first_imgWith expertise from Tim Kaxiras, the John Hasbrouck Van Vleck Professor of Pure and Applied Physics, the team combined theoretical design with tightly controlled experimental conditions. Computational models informed their experiments, and experimental results influenced model design. They relied on this cyclical method to — like an eddy — narrow in on improved designs.But Friend and collaborators wanted to do more than just make catalysts. They aimed “to predict catalytic behavior and to understand why we can predict it, not just to empirically predict but to understand the basis of it,” according to Friend.Their novel systematic approach, described in a paper in the journal Nature Materials, yielded insights into how catalysts change just before, during, and after catalysis. As validation of this early work, other researchers have already adopted their approach to explore new materials and design enhanced catalysts.The center’s previous work could lead to more energy-efficient catalysts and chemical production. With the grant renewal, however, the team also has a new focus: “selective catalysis.”In production, chemical synthesis can create undesired byproducts, which can be unusable or dangerous. For example, oxidation processes, like those used in water treatment, can produce carbon dioxide and contribute to climate change. To subvert this, Friend and her collaborators intend to make these processes more selective so manufacturers produce more of what they want and waste less.Catalysts could also help transform a noxious material, like methane, into a useful resource, like methanol. Fracking, for example, produces methane, which manufacturers often burn for disposal. This only aggravates pollution. If, however, they could convert methane into methanol, they could use it in new chemical synthesis or to produce fuel and solvents. They could, in effect, recycle their waste.“If we can make any inroads in selectively transforming methane or propane to a useful chemical like methanol or related oxygen-containing molecules, it would be huge,” Friend said.She emphasizes that understanding why something works is just as important.“That’s the goal in the next phase: to advance our ability to make quantitative predictions of selectivity,” she said, “in other words, not to just qualitatively say something will get better or worse, but how much better or worse if you change conditions.”For their catalyst materials, the team has experimented with gold or silver combined with palladium. Gold and silver are stable elements that do not react easily, and therefore can slow the reaction. Palladium reacts fast and can speed the process. With these “bifunctional catalysts,” the team could achieve enough control over the reaction process to select which products — and byproducts — occur.But these reactions also need a platform, like a kind of stadium.According to Friend, the team is “trying to understand how to use the design of the catalyst material but also the reaction conditions to be able to basically drive the system to be much more selective.”For this, Joanna Aizenberg, the Amy Smith Berylson Professor of Materials Science and professor of chemistry and chemical biology, together with a team at Lawrence Livermore Labs, designed nanoporous materials based on nature’s own catalyst platforms, like those in butterfly wings. These minuscule, porous scaffolds provide remarkable mechanical, thermal, and chemical stability.“The technology developed in my lab is particularly promising for bridging the gap between state-of-the-art R&D and real-world applications,” Aizenberg said. “Due to its modular design and tunability, this framework can be used in various fields, from the synthesis of important chemical products to pollution abatement.”Four years ago, Friend applied to form the Energy Frontier Research Center in large part because of the opportunity to build an extensive collaborative network. Energy research wins grant Simple nanoarchitecture can reduce costs for catalytic converters Related Butterfly wings inspire air-purification improvements New insights include possible path to improved efficiency Seeking a breakthrough on catalysts Related U.S. funds innovative Harvard-based efforts to reduce consumption A collaboration with a long lifetime Imagine you’re pushing a child on a swing. She pumps her legs to gain momentum, but your push also helps her accelerate.A catalyst has a similar purpose: It can speed a chemical reaction without being consumed by it. And, since 90 percent of all commercially produced chemical products involve catalysts in their manufacture, chances are good that the swing the child sits on, the snack she eats, her plastic toys, and the insulation in her house are all made with catalysts.Chemical production, with or without catalysts, accounts for nearly 25 percent of energy use worldwide. What’s more, experts forecast that energy demand will increase this number to 45 percent by 2040.Cynthia Friend, the Theodore William Richards Professor of Chemistry, professor of materials science, and director of the Rowland Institute, wants to prevent this rise.Now, with a multimillion dollar grant from the U.S. Department of Energy (DOE), she’s well-positioned to help “change the face and carbon footprint of the chemical industries sector,” one of her team’s goals. In 2014, the DOE’s Office of Basic Energy Science awarded Friend her first multimillion-dollar grant to establish an Energy Frontier Research Center. Her center, called the Integrated Mesoscale Architectures for Sustainable Catalysis, set out to unravel how catalysis works and, consequently, to design better catalysts.Because catalysts need to function across a vast range of materials, temperatures, time, pressure, and more, they’re challenging to design. To tackle this, Friend amassed an interdisciplinary team of experts in surface chemistry, theoretical physics, and machine learning from nine institutions. Already, they’re demonstrating the strength of their partnership. During the center’s first four years, they published 58 papers and discovered a way to transcend the trial-and-error approach to catalyst design. Radcliffe fellow Katharina Al-Shamery and Harvard Chemistry Professor Cynthia Friend “You can answer questions in a way that you couldn’t if you tried to do it individually,” she said of the group dynamic. “One of the gratifying aspects of having a center like this is the range of people you get to interact with, the ideas they put out, and their ability to work together and go to new levels when they move to their next positions.”As of this year, the center hosts researchers from Harvard, Tufts University, the Lawrence Livermore National Laboratory, the University of California at Los Angeles, Berkeley Lab, Stony Brook University, the University of Pennsylvania, the University of Florida, and the University of Oslo.Students, in particular, tend to thrive in such an interdisciplinary, international environment. For example, Michelle Louise Personick now has a faculty position at Wesleyan University, and Branko Zugic is the director of chemical engineering at L3 Open Water Power. Both used the diverse skills they developed at the center as a foundation to build successful careers.Friend, who was recently elected into the American Academy of Arts and Sciences, attributes her successes to her team: “I have my colleagues to thank for that, too, because they’ve made it possible for us all to do things that were beyond what we could have done otherwise.”The team already has achieved advances in catalyst design that affect how researchers approach this challenge. In the next phase, the members aim to bring their theoretical designs closer to widespread application and use. If successful, they could indeed help change the chemical industry into a more energy-efficient, cleaner operation.last_img read more

Oklahoma man charged in shooting deaths of 5 kids, brother

first_imgMUSKOGEE, Okla. (AP) — A 25-year-old Oklahoma man has been charged in the fatal shootings of his brother and five young children. Court records show Jarron Deajon Pridgeon of Muskogee was charged Wednesday with six counts of first-degree murder and other felony counts. Muskogee police say they don’t yet know why Pridgeon fatally shot 24-year-old Javarion Lee or the children, the oldest of whom was 9. The children’s mother, Brittany Anderson, was also wounded in the shootings early Tuesday and was hospitalized in Tulsa. The youngest victim was 1. Court and jail records do not list an attorney who could speak on Pridgeon’s behalf.last_img

Member education about EMV chip cards still lags

first_imgby: Brandon KuehlWith three months remaining before the October 2015 EMV liability shift for U.S. payment cards, a recent survey found 65 percent of consumers haven’t yet heard of chip card technology. What’s more, 77 percent have not received a chip-enabled card, and 44 percent believe only certain credit cards will be affected by the EMV shift.The lack of awareness about major changes coming in the next few months underscores an urgent need for consumer and merchant education.Security remains a top concern for the 1,008 American consumers participating in the survey, with 80 percent of respondents saying they are worried about security for debit and credit card transactions. Thirty-four percent admitted to being extremely concerned about security. It’s so much of a concern, in fact, another survey found one in four consumers would be willing to share their DNA with their financial institutions (FIs) if it would protect them from fraud. continue reading » 2SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblrlast_img read more

3 questions with Velocity Solutions’ Steve Swanston

first_img ShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr,Lauren Culp Lauren Culp is the Publisher & CEO at CUInsight.com.She leads the growing team at CUInsight, works with organizations serving credit unions to maximize their brand and exposure, connects … Web: https://www.cuinsight.com Details CUInsight Publisher & CEO Lauren Culp is joined by Steve Swanston, EVP of Velocity Solutions for a quick interview with just 3 questions:(0:31) What is your company doing to support credit unions and their members during the COVID-19 crisis?(3:39) How do you think that COVID-19 might affect credit unions and the way that we do business in the long-term?(6:59) What tips do you have for staying sane during trying times?You can learn more about Velocity Solutions‘ response to the COVID-19 crisis here.last_img read more

Virtuoso ranked Croatia among the top 10 world destinations in three categories

first_imgThe Association of Luxury Travel Agencies Virtuoso again this year conducted a traditional survey among its members – “Vituoso Luxe Report”.According to the results of the research for 2019, Croatia is ranked among the top 10 destinations in as many as three categories. Thus, our country took a high second place in the category of the most popular emerging destination, sixth place in the category of the best destinations for the so-called. millennials, ie young travelers and an excellent eighth place in the category of the world’s most popular destinations. “The US market for Croatian tourism is one of the leading distant markets, from which we have so far achieved about 570 thousand arrivals and 1,6 million overnight stays, which is an increase of 23 percent compared to the same period last year. That is why we are even more pleased with these results, which confirm the excellent status of Croatia in the large American market. “, said the director of the Croatian Tourist Board Kristjan Staničić, adding that the focus of activities in the coming period will be to further strengthen air transport to make our country even more accessible to American tourists.  Ina Rodin, director of the CNTB Representation in New York, also commented on the report. “The results achieved within the Virtuos report are the result of great work and effort invested by all tourism workers in the overall Croatian tourist offer and its promotion. We are extremely pleased that our work and progress are recognized by the members of Virtos, a large global network that has a strong impact on overall tourist flows.”, said Rodin. The Virtuoso® Luxe Report is an annual report based on research conducted among the world’s travel agencies and their advisors, who are members of Virtuos.The report for 2019 predicts new trends in travel based on current and projected reservations. Virtuoso is a network of more than 17.500 travel advisors in more than 1.000 agencies around the world, and they also have contracts with exclusive and leading world hotels, resorts, spas, cruise companies and other travel companies.Side dish: THE 2019 VIRTUOSO® LUXE REPORT / A Guide to Key Trends and Insights in Luxury Travellast_img read more

Letters to the Editor for Thursday, Feb. 21

first_img1. Tedisco feels that conservative upstate is paying more than its share of taxes. But according to PolitiFact, upstate taxpayers pay just 18 percent of New York State’s tax burden. Downstate pays more than 70 percent.2. Tedisco calls conventional economic development and its associated ethnic diversity both “radical” and “regressive,” two words that happen to be opposites.3. Tedisco criticizes “socialism” but hypocritically supports socialism. He demands that downstate taxpayer dollars be redistributed to government-guaranteed cellphone coverage upstate, where hills outnumber taxpayers and where there is no shortage of private mobile carriers. 4. When Tedisco boasts of upstate “quality of life,” he invokes fear of the very things that make downstate prosperous: cultural and economic vitality, individuality and freedom to grow.I grew up in Scotia. I’m embarrassed to see Tedisco asking former neighbors and classmates to scapegoat, and to separate from those of us in big cities who embrace diversity, who are more economically productive, who pay our fair share of taxes and who welcome economic and social change.People like me left upstate, not because of New York City, but because of people like Tedisco who fear individuality and change.Mike AirhartAlexandria, Va. The writer is a Scotia native. Fact: Wages rose 3.2 percent over the last 12 months, the best yearly increase in a decade. Problem? Presidential hopeful Sen. Kamala Harris rants that “the economy is not working for the working people.” Huh?Dems won’t admit the inconvenient truth that these facts are benefiting working people.Earth to Democrats: Jobs aren’t scarce; workers are.Food stamps should be for people willing to work who need help making ends meet. But three-quarters of non-disabled, working-age food-stamp recipients without children still don’t work. A work requirement would incentivize the slackers to get off the couch. Yet Democrats adamantly oppose it. What an insult to hard workers.What’s more worker-friendly: Trump’s booming economy or the Democrats’ misguided meddling?Domenico DiCaprioVoorheesville Regarding the so-called “privilege exercise” being carried out at Saratoga Springs High School: A couple of years back, all the educational elites were telling us that “transgender” students must be allowed to use the bathroom facilities of the gender that they “identify with,” lest they be made to feel “uncomfortable.” (The fact that many students whose physical traits and gender identification match might therefore be made uncomfortable was written off by people such as CNN commentator Chris Cuomo who said, essentially, “Get used to it.”)Now we learn that at Saratoga Springs High School, an “exercise” targeting “white privilege” has been carried out. Even with the small selection of items from the exercise presented by The Gazette, it’s clear that it carries racial, religious and ethnic stereotypes that have justifiably incurred the wrath of parents. Rating Judaism as “the most privileged” religion might have come right out of Hitler’s “Mein Kampf.”And Catherine Snyder, identified as “director of the Clarkson University teacher’s education program,” argues that it’s not wrong to make students feel uncomfortable when dealing with uncomfortable topics in class.My questions are these: First, why is it fine to make some targeted students feel “uncomfortable” in school when their parents are paying out huge sums of money in school taxes? And second, just who are the people making the decisions about which students should be made to feel “uncomfortable” and which students must be protected from discomfort?I think many of us can be pardoned for concluding that this so-called “privilege” exercise is designed to vilify certain ethnic and religious groups and consequently describing that exercise as racist.Michael NardacciAlbany Unfortunately pro-lifers believe every word and never educate themselves on an issue before becoming all-knowing, while trying to humiliate and embarrass anyone who has a different view than you. Amazingly, I do not hear any pro-choice people screaming and hollering that you would find it acceptable to let a woman die to protect an unborn fetus. Ms. Richard, I also find it sad that a religious leader in your church would speak so graphically in front of young children. There’s a place for these discussions but not in front of young impressionable children who do not comprehend such complex issues. Shame shame shame.Joshua HermanceRotterdam  Schenectady doesn’t need a fourth judgeSchenectady Mayor Gary McCarthy is spot on: The city of Schenectady does not need a fourth City Court judge. Compare City Court’s caseload to the town of Colonie, which does a fine job with three part-time town justices. And what exactly does a fourth City Court Judge do for Schenectady?It does allow the state Office of Court Administration to take a City Court judge and move him or her “temporarily” to Family Court, County Court or any other court of record. Of course, that only costs the city money. But it also dilutes the votes of everyone else in the county, like those of us who could not vote for or against the City Court judge, but then has him or her in a countywide position.That dilutes city voters’ votes as well, since they voted for or against the City Court judge, but did not vote for him or her in any other judicial position. As an attorney for the better part of 40 years, I believe that judges should serve only in the position for which they were elected. What does the city get other than the tab for another judicial position? Bruce S. TrachtenbergNiskayunaThe writer is a former town justice.More from The Daily Gazette:EDITORIAL: Find a way to get family members into nursing homesEDITORIAL: Beware of voter intimidationEDITORIAL: Urgent: Today is the last day to complete the censusCuomo calls for clarity on administering vaccineFoss: Should main downtown branch of the Schenectady County Public Library reopen? Tedisco mistaken on split-state solutionIn his Feb. 13 guest column, State Sen. James Tedisco contends that people are fleeing New York state. But they are leaving upstate New York, not downstate. And the upstate region is in decline despite financial support from downstate. Allow me to summarize: First, they came for the billionaires. Then they came for the millionaires. Then they came for my stocks. Then they came for my CDs. Then they came for my Christmas Club. Then they came for me.Sound familiar? It makes no difference who is doing it to whom. It is not moral. The Green New Deal is “magic socialism” revisited.Edmond DayRotterdam Facts show Trump economy is workingDemocrats, now the majority in the House of Representatives, are trying to turn that body into the house of resistance. They’re claiming the nation is in bad shape, rigged to benefit only the rich.Sen. Chuck Schumer griped that “the state of the Trump economy is failing America’s middle class.” But facts don’t lie.Fact: Employers created 304,000 jobs in January. That compares to an average monthly gain of 223,000 in 2018 and 182,000 in 2017. Too bad all the new hires couldn’t attend his speech, to show off Trumponomics on real people who have to put food on the table.Fact: Workers who had given up hope of finding a job are re-entering the labor force. The labor participation rate for workers age 24 to 54 hit its highest level since 2008. Green New Deal is just more socialism Categories: Letters to the Editor, OpinionGet facts straight on new abortion lawRegarding the Feb. 9 letters from Laurie Cox and Jennifer Richard, your letters are false, misleading and defamatory against anyone who doesn’t support your opinions. There’s a very informative article in The New York Times which The Gazette ran earlier this month, debunking all the claims by you and the pro-life groups.New York State law defines late-term as after 24 weeks and only if the birth is nonviable or the mother’s life is in danger. The law also states no abortion shall be performed after the start of the third trimester, which is approximately the 27th week.That’s far from being ripped out during a normal birth. Under 1 percent of all abortions performed last year were considered late-term, and each was a nonviable birth or life threatening to the mother. Privilege exercise goes off the marklast_img read more

Paris neighbors ease lockdown blues with quiz from balconies

first_imgKeen to prolong that moment of connection, Cartozo started playing music for the street.”But I noticed I was the only one dancing,” he said. “In the end I decided to give them a series of questions, and the game took off.”The quiz pits people whose house numbers have even numbers, on one side of the street, against those with odd numbers. Prizes include toilet paper and pasta.Neighbors appreciate the diversion.”It makes the days seem shorter,” said one resident, Laura Coles, who was taking part in the quiz on Wednesday evening.”It’s good to talk to people, to laugh with people,” said her daughter, Lou.Cartozo has dubbed the nightly quiz “Questions for a Balcony,” a play on the title of long-running quiz show on French television, “Questions for a Champion”.Yet despite landing his own hit show, the performer said he was keen for it to end.”We all want to get out, we want to see our friends and families again. The shorter this game is, the better it is for everyone,” Cartozo.  “I saw that the neighbors were looking a bit sad about the confinement,” said Cartozo, who comperes the quiz with toilet rolls festooned around his neck, a satire on the coronavirus-related wave of panic buying seen in some cities.”I wanted to create a bit of atmosphere in the neighborhood to help with all of that,” he told Reuters.France this week became the fourth country in the world to cross the threshold of 10,000 coronavirus-related deaths. Officials say the lockdown is slowing the outbreak but the restrictions will not be eased anytime soon.Cartozo hit on the idea for the quiz after Paris residents started emerging on to their balconies at 8 p.m. each night to applaud healthcare workers dealing with the epidemic. “What country’s flag has a yellow cross on a blue background?” Noam Cartozo shouts out of the fifth-floor window of his Paris apartment. “Sweden!” comes the shouted reply from another apartment window and applause ripples through the street.This nightly general knowledge quiz is how the residents of Rue Saint-Bernard, in the 11th district of Paris, are relieving the boredom and isolation of a coronavirus lockdown that is now nearly a month old.It has spread beyond the street. Cartozo, an actor and comedian who hosts the quiz, broadcasts it on his Instagram account, with one video garnering 1.1 million views.center_img Topics :last_img read more

2012 Carnival Road Parade Winners announced

first_img Sharing is caring! 20 Views   one comment Tweet The Prize winners of the various Road Parades on Carnival Monday and Tuesday are hereby announced as follows:Queen of the Bands – CHANNELLE LEGRAS from the Band AFRICULTURE STILT WALKERSJ’OUVERT1. Lapo Kabwit Joint Award for sharp 4:00am start – Newtown Lapo Kabwit Band, Gutter Lapo Kabwit Band, Police Lapo Kabwit BandSpecial award: Anvilla Iron Band of Antigua2. Best Individuals Male and Female: Pink Gorillas: Chester and Sharian Letang3. Best Sensay: Major Francis Richards4. Special Award to only Steel band on the road and their excellent performance: The Real Steel5. Best J’ouvert Group: Jean Bois – Cavemen6. Longest Lapo Kabwit on the road- Joint award to: Gutter & Newtown Lapo Kabwit Bands7. Largest Old Mas Group: Friendship Crew – The New Generation of Executives8. Best Costumed Group: Estate Vibes – Undercover Cops9. Old Mas Parade Best Old Mas Band: Carnival Corner2nd Place: Waseen Gwanbe3rd Place: Thunderbirds10. Children’s Carnival Band ParadeChildren’s Band of the Year: Convent Preparatory School: Motherland Melay.2nd Place: Dos D’ane Primary School – Nature Isle’s Enchanted Garden3rd Place: St. Luke’s Primary School – Simply SensayChildren’s King of the Bands – Dos D’ane Primary SchoolChildren’s Queen of the Bands – Convent Preparatory SchoolBand of the Year : Behind the Great Wall of China – ThunderbirdsSpecial Award to Joint Atkinson, Salybia and Sinekou Primary Schools for the creative design of the Snake in the Band: Snake King of the Kalinago.11. Adult Carnival Band ParadeBand of the Year: Behind the Great Wall of China – Thunderbirds2nd Place: What Lies Beneath – Mercury3rd Place: Vision – Carnival CornerKing of the Bands – Andy Carter from Thunderbirds’ Behind the Great Wall of ChinaQueen of the Bands – Channelle Legras from the Band Africulture Stilt WalkersThe Judges of the 2012 Parades were:Celia Nicholas, Mickael Ferrol, Joan Prevost, Shani Charles, Curtis Clarendon, Daryl Phillip, Hugette Andrew St. Hillaire and Petros Meaza.The Dominica Festivals Committee wishes to thank the Judges and all who participated in the costume Parades thus making Carnival 2012 one of the most spectacular and colourful in recent times. The date and venue for this year’s Prize-Giving Ceremony will be announced in a subsequent Press Release.Press ReleaseDominica Festivals Committee LocalNews 2012 Carnival Road Parade Winners announced by: – March 1, 2012center_img Share Share Sharelast_img read more

Joyce Barrows May 20, 1944 – August 25, 2019

first_imgJoyce Barrows, age 75 of Cleves, Ohio passed away Sunday, August 25, 2019 at her home. Born May 20, 1944 in Owenton, Kentucky the daughter of Leonard “Jake” and Christine (Wilson) Lusby.Joyce attended Taylor High School and worked at Mount St. Joseph University for 25 years.Joyce is survived by her children Carl (Theresa) Lacey, Paul Lacey, Tonjia (Jamie) Johnson and Earl Barrows. Grandmother of Matthew (Lori), Stephanie, Adam (Jessica), Sydney, Casey and Rachel. Great grandmother of Gabriel, Madeline, Samuel and Evelyn. Sister of Bobby (Terri) Lusby and Cecil (Debbie) Lusby. Sister in law of Stella Lusby.Joyce is preceded in death by her parents Leonard “Jake and Christine Lusby, husband Steve Burk and siblings Joe, Carrol Gene, Ray, Junior, Bill, JC and Jackie Lusby.A Celebration of Life service will be held at a later date.Memorials may be directed to American Diabetes Association 4555 Lake Forest Drive #396 Blue Ash, Ohio 45242.last_img read more

Fergie to retire at end of season

first_img He added: “It was important to me to leave an organisation in the strongest possible shape and I believe I have done so,” he said. “The quality of this league winning squad, and the balance of ages within it, bodes well for continued success at the highest level whilst the structure of the youth set-up will ensure that the long-term future of the club remains a bright one.” Ferguson has had a career the like of which will never be seen again. He won his 49th trophy in United’s 20th league championship and seemed set to extend his career into next season, confirming as much in his programme notes ahead of Sunday’s encounter with Chelsea. Instead, with a hip operation booked in for August, this weekend’s Old Trafford encounter with Swansea, that will be followed by a trophy presentation, will be his last home game in charge. He leaves behind a club in good shape. “Our training facilities are amongst the finest in global sport and our home Old Trafford is rightfully regarded as one of the leading venues in the world,” said Ferguson. “Going forward, I am delighted to take on the roles of both Director and Ambassador for the club. With these activities, along with my many other interests, I am looking forward to the future. “I must pay tribute to my family, their love and support has been essential. My wife Cathy has been the key figure throughout my career, providing a bedrock of both stability and encouragement. Words are not enough to express what this has meant to me. “As for my players and staff, past and present, I would like to thank them all for a staggering level of professional conduct and dedication that has helped to deliver so many memorable triumphs. Without their contribution the history of this great club would not be as rich.” Now, for the first time in over a quarter of a century, United are on the hunt for a new manager. David Moyes, out of contract at Everton, and Jose Mourinho, who is expected to leave Real Madrid at the end of the season, are the obvious favourites, although Borussia Dortmund’s highly-regarded coach Jurgen Klopp and Bayern Munich’s 67-year-old outgoing boss Jupp Heynckes will also come into contention. Ferguson’s last game in charge will be at West Brom on May 19 and he will join the club’s football board. “The decision to retire is one that I have thought a great deal about and one that I have not taken lightly,” said Ferguson. “It is the right time.” Press Associationcenter_img Manchester United manager Sir Alex Ferguson has confirmed he is to retire at the end of the season, ending his history-making spell at the club.last_img read more