House Finance Committee Seek Change To PFD Formula Amid Special Session

first_imgFacebook0TwitterEmailPrintFriendly分享The House Finance Committee brought forward a bill seeking changes to the dividend formula going forward. The bill comes a week into the special session. The major items on the call are; the size of permanent fund dividend, crime legislation, and the budget. Knopp: “The PFD is on the call, but this comes with a catch. Representative Wilson is suggesting we pay out a $3,000 dividend, but as you know it comes with the caveat that we have to write another bill to restructure the formula. That would mean that the governor would have to add that to the call, so I think it’s a long shot.” The current dividend calculation hasn’t been followed the last three years amid an ongoing budget deficit, and dividend payouts have been reduced. Governor Mike Dunleavy has called for a full dividend and said that voters should have a say on any changes to the dividend program. HB 1005 was introduced by Representative Tammie Wilson. Representative Gary Knopp, member of the House Finance Committee: “It is simply an idea that Representative Wilson rolled out to try and find a compromise with the Senate so we can get wrapped up and get out of here.” last_img read more

Wilmington Yard Sale Listings October 2021

first_imgWILMINGTON, MA — Below is information on a yard sale happening in Wilmington this weekend:When: Saturday, October 20, 10am-2pm (may start at 9am if not raining)Where: 34 Shady Lane Drive, WilmingtonDetails: Multi-Family Yard Sale. Clothes, shoes, games, toys, household items, kitchen items, outdoor folding chairs, DVDs, DVD holders, Halloween decorations, Christmas decorations and much more. [Source: Wilmington Community Board Page]Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Share this:TwitterFacebookLike this:Like Loading… RelatedWilmington Yard Sale Listings (July 13-14)In “Community”Wilmington Yard Sale Listings (July 27-28)In “Community”Wilmington Yard Sale Listings (August 24-25)In “Community”last_img read more

ShangChi and the Legend of the Ten Rings confirmed at ComicCon for

first_img Share your voice The Marvel Cinematic Universe is about to get a new superstar. Shang-Chi and the Legend of the Ten Rings is joining the MCU’s Phase 4 slate of films, as revealed Saturday at the Marvel Studios San Diego Comic-Con 2019 panel.Newcomer Simu Liu is set to star as Shang-Chi, and will be the first Asian lead in a Marvel movie to date. Awkwafina, who we seen most recently in The Farewell will also star alongside Tony Leung. Destin Daniel Cretton is set to direct. TV and Movies Shang-Chi will be the third film for Marvel’s fourth phase, coming right after Eternals, and will see Shang-Chi facing off against the Ten Rings organisation introduced in Iron Man.  3:04 Post a comment 0 Comic-Con Tags Marvel’s Phase 4 plan explained Shang-Chi and the Legend of the Ten Rings coming 2021 and Tony Leung will be playing THE REAL MANDARIN! PLUS @awkwafina IS STARRING 💥❤️ #MarvelSDCC #SDCC2019— cait petrakovitz 🦹🏽‍♀️➡️#SDCC (@misscp) July 21, 2019 Now playing: Watch this: Marvel The Avengerslast_img read more

Gold Imports to Rise Premiums may Double Ahead of Diwali

first_imgAccording to bullion traders, India’s monthly gold imports are set to rise by as much as 50% from the current levels and premiums could also double ahead of this festive season next month. Additionally, gold sales are expected to rise by 15 to 20%.Currently, gold is being sold for around ₹27,000 per ten gram. It is expected that Indian gold buyers would help support global bullion prices which had dipped to eight-and-a-half month low of ₹1,216.01 (₹74,072) per 30 grams amid worries of hike in US interest rates. The festive demands are expected to push local gold prices. Prithiviraj Kothari, vice-president of the India Bullion & Jewellers’ Association expects the gold price to touch ₹28,500 per ten gram ahead of Hindu festivals like Dhanteras and Diwali.”Gold imports are expected to rise to about 70-75 tonnes per month in the coming months as against a monthly average of 50-60 tonnes,” Reuters quoted Prithviraj Kothari, vice-president of the India Bullion & Jewellers’ Association.After and during the Indian festive season, Indian gold premiums to the global benchmark are also expected to surge by ₹731 to ₹912 for 30 grams, from the current rate of ₹426 to ₹609 an ounce.Gold reached its highest at ₹35,074 per ten gram in August 2013, but then onwards the bullion prices have slipped steadily aided by weak prices overseas and a strengthening rupee.Deficit worries?Heavy imports raised the fiscal deficit during previous year that had put the rupee under pressure and slowed growth. Following this, UPA finance minister P. Chidambaram raised the import tax on gold for the third time in a year.However, in May 2014, RBI eased import restrictions on this commodity. The central bank permitted private agencies and banks to provide gold loans to the sector. But, the government has not lowered the import duty which is at 10%.India’s investment demand for gold slumped 67% on year in the June quarter, according to World Gold Council.But, Kothari opined that India’s deficit would not hurt because of gold demand during festive season as government’s restrictions on gold imports and lower international prices will prevent the deficit.last_img read more

Who was Rohit Tiwari The man who went to court to prove

first_imgLate Congress leader, ND Tiwari with his son Rohit Tiwari were embroiled in a legal paternity battle for six yearsGoogle ImagesRohit Shekhar Tiwari, the son of late Congress veteran ND Tiwari, died under mysterious circumstances in New Delhi on Tuesday. He was declared brought dead at Max Hospital in Saket.According to police, a call was made to the PCR from his Defence Colony residence that he was bleeding profusely from his nose.”We received an emergency call from the residence of Rohit Shekhar Tiwari at 4.41 pm this afternoon. An ambulance brought him to Max Hospital, Saket, where he was declared brought dead at the hospital emergency. As per the established procedure, we have informed the authorities. We express condolences at the passing away of Mr Tiwari,” said a statement issued by the Max Hospital.Rohit’s mother Ujjwala said that he was depressed for a long time. “There are a few people responsible for the same. I will reveal the names of the people who caused him depression,” Rohit’s mother said.The initial police probe has revealed that no external injuries were there on Rohit’s body.Who was Rohit Shekhar Tiwari?The 40-year-old, a resident of South Delhi, came to the limelight through a long drawn paternity battle with his biological father ND Tiwari, who was the former Chief Minister of Uttar Pradesh and Uttarakhand. ND Tiwari had refused to accept Rohit as his son which made the battle hog the media limelight for years. In 2007, Rohit had filed a paternity suit against ND Tiwari which was withdrawn due to some technical errors. He filed it again the following year. It took the veteran Congress leaders six years to accept Rohit as his biological son after continuous denials.The former UP Chief Minister even refused to give his blood samples for DNA profiling although both Rohit and his mother Ujjwala had submitted their samples in 2012. The late political leader even did not acknowledge the various state court rulings against him and the matter eventually went to the Supreme Court.Finally, ND Tiwari submitted his blood samples at his residence in Dehradun in 2013 which proved his biological link with Rohit. He ended up accepting Rohit as his son. ND Tiwari died last year at the age of 93.Rohit, during the years of his paternity battle with his father, had famously said, “I am not the illegitimate son. He is my illegitimate father. And his troubles have just begun.” Former Union Minister ND TiwariIANSlast_img read more

End of Rishabh Pant Shikhar Dhawan Virat Kohli drops big hint about

first_imgThe Indian side led by Virat Kohli performed consistently good for two matches in the ongoing T20I series against West Indies. They have now sealed the series with another win in Florida in the second T20I.Captain Virat Kohli said post the win that new players in the side would not get an opportunity to prove their mettle in the upcoming match.”Winning is always going to be a priority. But sealing the series gives the chance to bring few guys in. Idea is always going to be to win first. But winning the first two games gives the cushion,” Kohli said during the post-match presentation ceremony.After the America sojourn, the teams will now head across to Guyana for the final match, which will be played at Providence Stadium on Tuesday.A number of young faces are waiting in the wings Rishabh PantAlbert Perez/Getty ImagesThere are a number of young faces who could be given a chance in the final match. Shreyas Iyer, Deepak Chahar and leg-spinner Rahul Chahar could find a place in the side. Chahar can replace Ravindra Jadeja.After the twin failures, there will also be pressure on Rishabh Pant to keep his place as Kohli could include KL Rahul as the wicket-keeper.One of the biggest advantages for India has been the form of young Washington Sundar. He has been frugal at the top of the order and has chipped away at the wickets. He has also impressed captain Kohli with his fitness and then with his batting ability. Virat KohliGetty images”Starting with the new ball, the way Sundar has bowled against guys who come hard at the ball, he’s done a tremendous job. The composure he’s shown has been outstanding. He’s become fitter, leaner and is very handy with the bat as well. He is definitely going to be a factor for us,” Kohli said.The Indian side will play a 3-match ODI series after the T20I affair and hence, the fresh faces in the side need to be given a go-ahead as they could be important cogs in the middle order as well as in the bowling department.The management also needs to keep in mind workload management of different senior players in the side and rest or play them accordingly.last_img read more

Juba League expels Bogra rape accused Tufans brother Matin

first_imgMatin SarkerRuling Bangladesh Awami League’s (AL) youth wing Juba League on Tuesday expelled its Bogra town unit joint general secretary Matin Sarker over the rape charge against his younger brother Tufan Sarker.Tufan Sarker, also the Bogra town unit convener of  Sramik League, another affiliate organisation of the ruling party,  allegedly raped a girl student on 17 July, alluring her with assurances of ensuring her admission to an undergraduate college.Juba League general secretary Harunur Rashid confirmed Prothom Alo of Matin’s expulsion. He said Matin Sarker has been expelled for his involvement in various “immoral activities”.Read more: Two brothers control Bogra crime worldIt is to be noted that the daily Prothom Alo came up with a news report today, Tuesday, that the two brothers – Tufan Sarker and Matin Sarker – allegedly control the crime world in Bogra.Matin Sarker is also the general secretary of the Bogra District Truck Owners Association.Locals and party insiders said the two brothers have recently emerged as masterminds of various types of crimes like drug peddling, murder, extortion, and land grabbing in Bogra town and its adjacent areas and through various illegal means, they have become millionaires almost overnight.Read more: Ruling party’s Bogra leader rapes adolescent girlRapid Action Battalion (RAB) has listed Matin Sarker as a drug peddler and he is accused in nine cases – four of them are for murder. Matin was sentenced to imprisonment for 27 year in an arms case, but the verdict was stayed by the High Court.Police has also arrested Matin four times on different charges, RAB twice, and Joint Forces once.last_img read more

Missing DU students body found in Bhairab river

first_img.The body of a missing Dhaka University student was retrieved from a ferry ghat area of Bhairab river adjacent to Senhati bazar in Rupsa upazila on Saturday morning, reports UNB.The deceased was identified as Khalid Hasan, 19, a 3rd year student of Pharmacy department of the university, and son of Jalal Uddin, hailing from Shariatpur district.Md Rafiqul Islam, officer-in-charge of Rupsa police station, said that Khalid slipped into the Rupsa river around 8:00pm on Thursday while getting up from a trawler along with his brother Jahid Hasan, and went missing. A diver team of fire service carried out rescue drive till Friday but failed to trace Khalid. Locals spotted Khalid’s body in the river around 9:00am and informed police. Later police recovered the body and handed it over to his family members around 12:00pm, the OC added.last_img read more

Refugees not welcome in Japan

first_imgIt has been a decade since Liliane last saw her little girl. She fled Africa in fear for her life, leaving behind everything she knew and loved in the hope of a fresh start in Japan.Today, she scrapes a living from dead-end jobs, and what Japanese she knows has been snatched from television shows. There is little government help for people like her: free language courses are limited, social housing is hard to find, discrimination is rife.Yet Liliane is regarded as one of the lucky ones — she was granted refugee status in Japan, a country which refuses more than 99 percent of cases.”It has not been easy,” she tells AFP, speaking under a pseudonym.She adds: “Here they do not pay for your studies, they do not help you to get bank loans, or give you social housing… we are left to ourselves, we have to fight alone.”Anti-refugee sentiment is rising in Europe and the United States but in Japan those seeking haven from tyranny and war have long faced daunting legal and social gauntlets.One of the world’s wealthiest countries, Japan accepted just 28 refugees in 2016 — one more than the previous year — out of the 8,193 applications reviewed by the Immigration Bureau.Officials defend the low number, saying applicants are mainly from Asian countries seeking access to Japan solely for economic reasons.”The number of applications from regions which generate lots of refugees, such as Syria, Afghanistan and Iraq, is small,” said Yasuhiro Hishida, spokesman for the Immigration Bureau.- Fleeing persecution -Assisted by the UN, Liliane was able to claim asylum on arrival in Japan stating that her life was in danger due to tribal conflict back home. It took two years for officials to accept her as a refugee, a period during which she received assistance from the Catholic Church and charities.But she feels the status brought few benefits. She is no closer to reuniting with her child — now a teenager, her daughter has repeatedly been denied a permit to even visit.For Liliane, further education and a stable life, seem out of reach.She explains: “Japan is a very difficult country for foreigners. The language is really a handicap for us. You need to do absolutely everything to try to speak in Japanese but you don’t know where to find free lessons.””Sometimes I think refugee status has no meaning,” she sighs.But for Nonnon, being awarded refugee status would at least give her a sense of belonging.She fled military persecution in her native Myanmar 25 years ago but remains in frustrating legal limbo, accepted only on a humanitarian stay visa, which allows for residence and work but traditionally only on annual temporary permits subject to anxiety-riven renewal.”It’s like I have no nationality,” said the 47-year-old, who only gave her childhood nickname.She has tried to forge a life in Japan, she married a man from Myanmar who was also claiming asylum and they have a son and a daughter. But their children are effectively stateless — not recognised in Myanmar, nor as Japanese citizens.Refugee advocates say Japan’s system is too harsh.Lawyer Shogo Watanabe is helping a woman from Myanmar’s Kachin minority who says she risks sexual assault by soldiers fighting ethnic minority militias if she goes home.”To me, the risk of getting raped by someone who is a member of the military is a legitimate reason to be a refugee,” he said of her plight.”But immigration officials say you need to prove that she is actually targeted by the military.”- ‘Closed doors’-Critics also say current government policy ignores the country’s need for immigrants as the population shrinks.”Japan has kept a mindset of closing doors to foreigners as it is an island nation that until recently had ample population,” said Hidenori Sakanaka, a former Justice Ministry official who heads a pro-immigration think tank.The population is set to decline to 87 million by 2060 from 127 million today.He added that Japan must “accept more migrants, which would make society more open to multiple cultures and… to accepting more refugees”.The first Justice Ministry survey into discrimination against foreigners, released in March, found that 30 percent said they had been on the receiving end of discriminatory remarks.One in four of the respondents that had sought employment, believed they did not get the job because they were not Japanese.”For us with our black skin, it is a bit difficult. Sometimes when I sit on the train, some Japanese switch seats,” Liliane reveals, though she adds she has never feared for her safety, which is a major concern for asylum seekers in Europe.She says she was overlooked for teaching work, despite her fluency in English, when employers realised she is African.Nonnon, who currently works in a nail salon, recalls being paid less than Japanese workers for doing the same job. She contrasts her situation to that of family members who escaped to other countries.”My relatives in America and Australia were given refugee status and they are naturalised. They can get a job, buy a house and travel overseas,” she said, adding: “They can live as normal people. I want to live like a normal person.”last_img read more

Unimpressed By Oil Downturn Houston Retail Development Still Booming

first_img X 00:00 /01:54 Share Listen Florian MartinKroger employees cut the ribbon to a new Kroger Marketplace in Katy.Kroger just opened its fifth store in Greater Houston this year – and the grocery store chain has more planned. “We’ve made a commitment to invest over $500 million over the next five years, continuing to build stores just like this Kroger Marketplace,” Mike Krell, Kroger’s vice president of operations for the Houston division, said after a new store opening ceremony in Katy.And Kroger is not alone. According to real estate services firm JLL, the Houston area leads the nation in retail development activity.Simmi Jaggi, senior vice president with JLL, said many retailers stopped expanding during the Great Recession.“So since 2008, our city on a residential basis has exploded and done extremely well, with a lot of corridors that needed and had large demand for retail,” she said. “Those retailers are now coming in and filling in those pockets, so there’s been a tremendous amount of pent-up demand.”Jaggi says that’s true for retailers in general. Grocery stores actually kept expanding even during the recession.But will the strong retail growth in Houston continue?Jaggi expects it to slow down once the currently high need is satisfied, and the effect of the oil slump will probably catch up to retail as well – simply because fewer jobs mean fewer people move here, which will have an effect on demand for new stores.“If energy and office, if they have been impacted for the past 18 months, I would expect another 12 to 18 months and then we’ll see that more of a considerable slowdown with retail,” Jaggi said.For now, retailers are trying to come up with creative ideas to stay ahead of the growing competition, such as pickup windows or even drive-thrus at grocery stores. To embed this piece of audio in your site, please use this code: last_img read more

State Senator Students Will Play Critical Role In Preventing Future School Shootings

first_img To embed this piece of audio in your site, please use this code: X 00:00 /09:25 Listen REUTERS/Jonathan BachmanTen roses left in memory of the victims killed in a shooting at the Santa Fe High School.center_img In the aftermath of the school shooting in Santa Fe, Gov. Greg Abbott is hosting a series of roundtable discussions about preventing future such incidents. Republican State Sen. Larry Taylor represents the 11th District, which includes Santa Fe. He told Houston Matters host Craig Cohen he’s open to the possibility of a special session of the Texas Legislature, should the governor call one to address this issue. Lawmakers aren’t scheduled to be in session until January.Taylor said the idea of the roundtables is to bring in stakeholders and experts from various backgrounds — from educators, to security experts, to mental health professionals.“It’s such a complex issue there’s not one answer,” he said. “And, if there was one answer, it might work for one campus but not work for another. So, it’s just very multifaceted. So, bring in all these people in — hopefully in a spirit of unity — to try and find some real solutions and not argue about some of the things that people argue about.”He said some people have suggested putting metal detectors at all schools, but that might not work at every campus and at every district. Others have suggested doors with limited access during school hours, but there are challenges to that at some campuses.“Each school is going to have to do an assessment of their own campuses and what’s going to work best in those campuses,” Taylor said.He said students will play an important role in improving school safety too. And they might have to get used to a new reality of heightened awareness, much like many adults did after the 9/11 terrorist attacks.“Look out for your fellow students,” he said. “When you see lonely students or loner-type students walk up to them, talk to them, see if you can’t develop relationships with them. And, frankly, when you see changes in people’s personality or how they’re dressing all of a sudden make people aware because no one knows the fellow student better than the other students. And I think they’re going to have to be our first line of defense.” Sharelast_img read more

Special Election for Uresti State Senate Seat Underway

first_imgThe winner of the special election will finish Uresti’s term, which ends January 2021.Voters can use to find out if they’re registered and their polling location options on the Bexar County election page.MORE | Voter turnout during early voting DAVID MARTIN DAVIES / TEXAS PUBLIC RADIOA special election for a seat in the Texas Senate is Tuesday.Eight candidates are vying to replace San Antonio Democrat Carlos Uresti, who resigned last month after being convicted of 11 felonies, in state Senate District 19.MAP | Texas Senate District 19 Sharecenter_img The Democratic-leaning district, which includes parts of Bexar County and covers more than 400 miles of the U.S.-Mexico border, is facing challenges from top Texas Republicans, including Pete Flores, who ran against and lost to Uresti in 2016 but earned 40 percent of the vote.Gov. Greg Abbott endorsed the retired game warden Sunday. On the Democratic side, the two highest-profile candidates are state Rep. Roland Gutierrez and former Congressman Pete Gallego. The two other Democrats are attorney Charlie Urbina Jones, and Carlos Uresti’s brother, outgoing state Rep. Tomas Uresti, D-San Antonio.VIEW | Sample ballotlast_img read more

Stopping the Prison Pipeline

first_imgPublic safety is vital, but often methods for curbing crime result in unfair treatment, unnecessary arrests, and mistrust. For decades this type of behavior has been prevalent in areas of poverty and communities of color, according to law enforcement officials.To reduce mass incarceration while correcting public safety measures, a group called Law Enforcement Leaders to Reduce Crime and Incarceration – comprised of 130 current and former police chiefs, sheriffs, prosecutors and attorneys – gathered Oct. 21 at the National Press Club in Northwest Washington, D.C. to discuss strategies for ending improper imprisonment. The members are from all 50 states and the initiative is a new project of the Brennan Center for Justice at New York University’s School of Law.“Too many Americans, particularly low-income communities and communities of color, are being torn apart by our overly punitive justice system,” said Cornell Brooks, president and CEO of the NAACP. “Seeing law enforcement officials from across the country come together to address problems in the justice system sends a powerful message. We welcome these leaders to our efforts.”Four solutions were identified in the report: increase arrest alternatives, restore balance to criminal laws, reform mandatory minimums, and strengthen community-law enforcement relations.Co-chairs of the Law Enforcement Leaders are Ronal Serpas, former superintendent of the New Orleans Police Department, and Garry McCarthy, superintendent of the Chicago Police Department. “Police related shootings are down 68 percent in the last four years,” said McCarthy, noting that Chicago is designing a different system of policing that other cities are beginning to notice. “Complaints against officers are down almost 50 percent in the last two years and (we) are making 20,000 less arrests.”Speakers scheduled to address the attendees at the initiative’s luncheon included William Bratton, commissioner of the New York Police Department; Charlie Beck, chief of the Los Angeles Police Department; Benjamin David, district attorney of New Hanover and Pender Counties in North Carolina; Charles McClelland, chief of the Houston Police Department; and Cathy Lanier, chief of the Washington, D.C. Police Department.However, Lanier did not attend. According to MPD Officer Sean Hickman, Lanier was testifying on body cameras at a D.C. Council Judiciary Committee hearing.“We need to make sure that we’re locking up the right people for the right reason,” said Beck. “We have to look at things such as treatment. It can’t be just about arrest. We need a task forward that makes sense.”McClelland said he believes the federal level should be more involved in making state decisions for equity in crimes. “There are state houses that don’t want the federal government to run their business but there are incentives for every state to get federal funding through grants, asset forfeitures, all these things that are important in law enforcement,” McClelland told the AFRO.He said President Obama should create a commission to investigate the entire criminal justice system, similar to what President Lyndon B. Johnson did in 1965. “[It should be] a full-fledged commission, not a task force, to examine every aspect from incarceration, sentencing, grand juries, corrections, the whole system,” McClelland said.last_img read more

Black Mamas Bail Out Helps Release 106 Moms for Mothers Day

first_imgBy Mark F. Gray, Special to the AFRO, mgray@afro.comLost behind the well documented stories of acrimony between law enforcement and Black me,  there is the less publicized saga of Black women who sit behind bars because they can’t afford to pay bail.  Often the women who are held on non violent charges and haven’t demonstrated they were a threat to society pay a hefty price sitting in holding cells waiting for a helping hand to bail them out.However, this year 106 women were released in time to spend Mother’s Day with their families after the National Bail Out collective, the coalition behind “Black Mama’s Bail Out”, helped reunite mothers with their families to spend quality time on their special day.“Black Mama’s Bail Out,” helped over 106 moms make bail and be released in time for Mother’s Day (Courtesy Photo)“This year was the largest “Black Mama’s Bail Out” yet and we couldn’t be more proud,” said National Bail Out collective Project Director  Arissa Hall, in a public statement. “But our fight is far from over. The existence of cash bail and criminal legal system that entraps Black communities continues to devastate families across the nation. We will keep bailing caregivers out of jail, supporting our communities and raising awareness of the broader impacts of bail money and pretrial detention.”The Free Black Mamas movement has raised nearly $1 million to bail out more than 400 women from jails across the country since its inception in 2017. This year alone 106 women were released in 30 cities that participate in the annual movement from New York to California. This year, the effort raised more than $350,000 and made bail payments for those Black mothers on and around Mother’s Day according to reports.“One hundred moms were able to spend the holiday with their families, said Erika Maye, Color Of Change deputy senior director, Criminal Justice.  “One hundred communities are one step closer to healing because they’ve been reunited with caregivers.” Black Mama’s Bail Out is a subsidiary of National Bail Out collective (NBO) which promotes itself as a Black-led and Black-centered collective of abolitionist organizers, lawyers and activists building a community-based movement to support Black communities and end systems of pretrial detention and ultimately mass incarceration. NBO is made up of a dozen organizations including Color Of Change, Southerners on New Ground, and others.According to the 2018 report from the Prison Policy Initiative, women are disproportionately stuck in jails and avoiding pre-trial incarceration is uniquely challenging for them mainly because they can’t afford cash bonds for release.“The number of unconvicted women stuck in jail is surely not because courts are considering women, who are generally the primary caregivers of children, to be a flight risk,” the report concludes. “The far more likely answer is that incarcerated women, who have lower incomes than incarcerated men, have an even harder time affording cash bail. When the typical bail amounts to a full year’s income for women.” Of the more than 102,000 Black women who are incarcerated around the United States 89,000 remain in holding by local authorities waiting for their cases to be heard in court.  This puts a strain on families and has a catastrophic effect families on children when ladies are the primary caregivers for them. “We know that the racist system of cash bail continues to hold Black people back across the nation,” Maye adds. “Color Of Change and our members will continue to fight for the complete elimination of cash bail and the collective liberation of Black communities.”The Collective has even established the Free Black Mamas Fellowship, an eight-week paid fellowship to help mothers who have been bailed out to engage in effective political organizing.last_img read more

Drakes Scorpion on Its Way to Shattering Streaming Records

first_img ×Actors Reveal Their Favorite Disney PrincessesSeveral actors, like Daisy Ridley, Awkwafina, Jeff Goldblum and Gina Rodriguez, reveal their favorite Disney princesses. Rapunzel, Mulan, Ariel,Tiana, Sleeping Beauty and Jasmine all got some love from the Disney stars.More VideosVolume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9Next UpJennifer Lopez Shares How She Became a Mogul04:350.5x1x1.25×1.5x2xLive00:0002:1502:15 UPDATED: Sixteen hours after its release, Drake’s new 25-song double-album “Scorpion” is averaging 10 million streams per hour on Spotify, according to an announcement from the company, and looks well on its way toward breaking a number of streaming records — it might even become the first album to pass 1 billion streams in the U.S. in its first week of release.Even if it doesn’t, “Scorpion” seems guaranteed to break the Spotify records set just weeks ago by Post Malone’s “Beerbongs & Bentleys,” which was streamed 47,930,039 times in the U.S. and 78,744,748 times globally on its first day of release — and 236,500,546 times in the U.S. and 411,816,710 globally in its first week. Guess whose record that last number broke? Drake’s, for last year’s 22-track mixtape “More Life,” which set the record with 385 million streams. Popular on Variety Amazon and Tidal had not posted numbers at press time. Stats will be updated through the coming hours and days.More to come… “Scorpion” became the No. 1 album on the Apple Music charts in 92 countries almost instantly upon release, and at presstime its 25 songs occupy the top 25 spots on Apple Music (with XXXTentacion’s “SAD!” at No. 26).The labels involved (Republic, Cash Money and Young Money) seemingly have launched a full-scale campaign to break as many streaming records as possible, something that the album’s length makes a lot more likely than, say a seven-track album. In an unexpected move, given Drake’s long history with Apple Music, they’ve also gone big with Spotify, teaming up with the service for its first-ever global dedicated artist takeover, called “ScorpionSZN,” whereby Drake takes over multiple playlists on the same day. The MC is on the cover of RapCaviar, Beast Mode, Today’s Top Hits, Morning Commute and others — including ones where his music isn’t even featured.Late Friday afternoon, the RIAA announced that Drake has become its top certified digital singles artist, with 142 million to date — a number that’s sure to grow in the coming days.last_img read more

Fiberwireless FiWi to provide ultrahighspeed shortrange communication

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Copyright 2010 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. “Mm-wave frequency allocation around 57-66 GHz can deliver bandwidths in excess of 1 Gb/s compared to few Mb/s offered by current third generation mobile systems or 100 Mb/s offered by Wi-Fi systems,” Lim told PhysOrg.com. “There are even higher mm-wave frequencies which have much larger bandwidths available. However, the technologies for these are not yet matured and over time, the mm-wave band could be exploited to give bandwidths in excess of 10 Gb/s over short-range wireless.“Due to the short transmission distances associated with mm-wave frequencies, applications in personal area networking would be the most appropriate,” she said. “Providing fast wireless connectivity between your hi-def display screens and video content on a storage device, for example, or connecting a range of devices such as laptops, media storage and displays for entertainment and business interactivity applications, to name a few, will soon require bandwidths in excess of 100 Mb/s connectivity.”Transportation and integration optionsRegarding the basic architecture of a Fi-Wi system, the researchers looked at three possible approaches for transporting mm-wave wireless signals over optical fibers. The simplest scheme, called RF-over-fiber, involves directly transporting the wireless signals, so that no frequency translation is required at the base stations. The second method involves downconverting the mm-wave wireless signals to a lower intermediate frequency (IF) at the central office before optically transmitting the signals to the base station where they are upconverted, which is called IF-over-fiber. The third method, called baseband-over-fiber, involves transporting the wireless signals as very low-frequency baseband signals over optical fibers from the central office to the base station, and then upconverting the information to the mm-wave frequency at the base station. Ultimately, there is a tradeoff between simplicity and robustness in the three methods: while the RF-over-fiber method is the simplest, the signals are more susceptible to various impairments as they propagate along the optical fiber. Many research teams have been working on a number of strategies to overcome these impairments. The authors of the current study emphasize that these improvements are necessary for achieving good signal quality and overall system performance. Another requirement is for fiber-wireless systems to be integrated with the existing optical infrastructure. The engineers explain that the rising level of optical fiber infrastructure deployment close to residential premises provides an ideal opportunity to interconnect the wireless with fixed wired networks. This integration would enable fiber-wireless systems to take advantage of current technologies such as wavelength-division-multiplexing (WDM), which combines multiple signals on a single optical fiber by using different wavelengths. Previous research has demonstrated that WDM can significantly increase the capacity and success rates of fiber-wireless systems. In addition, research has shown that there are a range of technology options that support such integration cost-effectively without compromising the performance required of these very high-speed networks.Overall, mm-wave fiber-wireless technology has the potential to open up the wireless spectrum as the use of small, portable communication devices continues to grow. Serving as a short-distance technology, the wireless portion can cover the “last mile” of data transmission to customers, as well as in-building networking, with the potential for faster speeds and lower costs. For these reasons, fiber-wireless systems would make the most sense in densely populated areas, and also for disaster recovery environments where wired communication lines are unavailable. As Lim explained, fiber-wireless could be deployed in the near future.“We feel that fiber-wireless could be commercially ready in 3-5 years with immediate applications to new base station installations,” she said. “The adoption of Fi-Wi technologies to 3G and 4G wireless will be the most likely market in the immediate term. As the fiber deployment extends to buildings and premises, mm-wave Fi-Wi will take off.” This congestion problem was not unanticipated by electrical engineers, who, for the past two decades, have been developing new wireless technologies that use different parts of the electromagnetic spectrum. Specifically, these wireless technologies are exploiting the large, unused bandwidths of extremely high frequency (EHF) microwaves in the millimeter-wave (mm-wave) frequency region. One particular area of interest is the unlicensed 60 GHz frequency band, which has 5-mm wavelengths. (In contrast, the heavily burdened lower microwave regions have frequencies of 2-4 GHz, corresponding to wavelengths of 7.5-15 cm.) However, the 60 GHz frequency band is not without challenges, either. Since wireless signals at 60 GHz frequencies have inherently high propagation losses, they are targeted toward short-range, in-building, high-speed applications. To maintain strong incoming wireless signals for buildings, many antenna base stations must be built near customers. These base stations, in turn, would receive broadband signals from a smaller number of distant central offices. The signals between central offices and base stations would be transmitted through long-range optical fibers. Since such a system uses both optical fibers and mm-wave wireless transmission, the technology is called “fiber-wireless” (Fi-Wi). The advantage of bimodal Fi-Wi systems is that they can enjoy the strengths of both optical and wireless technologies – specifically, the inherently large bandwidth of optical fiber and the large, unused bandwidth in the mm-wave wireless spectrum. For this reason, a hybrid system has the potential to provide very high data transmission rates with minimal time delay.Recently, a team of electrical engineers working on fiber-wireless technologies has analyzed the progress made in this field over the past two decades. In a paper published in the Journal of Lightwave Technology, Christina Lim, from the University of Melbourne, and her coauthors have presented an overview of the many different techniques proposed to optically transport mm-wave wireless signals and overcome some of the challenges involved. (PhysOrg.com) — By looking at the latest electronic communication devices that have emerged over the past few years, it’s clear that the trend of smaller, portable devices is strong and expected to continue. Yet while all these notebooks, netbooks, and tablet PCs are becoming more and more popular, their explosive growth also poses a problem: these wireless devices are hogging the already congested lower microwave frequency region of the wireless spectrum. CSIRO designs world’s best mm-wave chips for communications and securitycenter_img More information: Christina Lim, et al. “Fiber-Wireless Networks and Subsystem Technologies.” Journal of Lightwave Technology. Vol. 28, No. 4. February 15, 2010. Doi:10.1109/JLT.2009.2031423 Citation: Fiber-wireless (Fi-Wi) to provide ultra-high-speed, short-range communication (2010, March 9) retrieved 18 August 2019 from https://phys.org/news/2010-03-fiber-wireless-fi-wi-ultra-high-speed-short-range.html Explore further A mm-wave Fi-Wi network. An optical fiber backbone (red) provides broadband connections between the central offices and antenna base stations. Then, the base stations wirelessly transmit 5-mm-wave (60 GHz) signals to customers. Within buildings and homes, the short-range wireless signals can provide high-speed connectivity (faster than 1 Gb/s) for a variety of wireless, high-bandwidth communication devices. Credit: Lim, et al.last_img read more

GE announces 500 GB holographic disc writer that runs at BlueRay speed

first_imgA prototype holographic drive system designed by GE researchers in the Applied Optics Lab at GE Global Research in Niskayuna, NY. Citation: GE announces 500 GB holographic disc writer that runs at Blue-Ray speed (2011, July 21) retrieved 18 August 2019 from https://phys.org/news/2011-07-ge-gb-holographic-disc-writer.html (PhysOrg.com) — GE’s technology research group has announced the development of an optical disc writer capable of writing 500 GB of data onto a disc the same physical size as a DVD, at roughly the same speed as Blue Ray technology. This comes two years after announcing the holographic technology that was used to first imprint the discs with 25 times as much data as a Blue Ray Disc can hold. Explore further By making an announcement about an advancement in what most see as a dying technology, GE is taking somewhat of a risk, but Peter Lorraine, Manager at GE Global Research, who will be presenting today at the IEEE’s Joint International Symposium on Optical Memory & Optical Data Storage meeting is expected to pooh-pooh such notions and instead explain how the new technology could be used for long term storage for data, that the company says, will last for a hundred years (presumably if stored in ideal conditions).The technology works by initially stamping millions of tiny holographic images into a polycarbonate (a type of thermoplastic polymer) material, then a laser (which uses the same wavelength as Blue Ray technology) is used to erase parts of the holograms to encode data. Write speeds are 4-5 megabytes per second, which is on a par with Blue Ray (4.5 Mbytes/s). With this process the entire surface of the disc can be used, rather than just the four layers on the surface of the disc that Blue Ray is able to use, which is why it can hold so much more.And while critics point out that at such a rate it would take something like a whole day to fill the disc, GE counters by saying that since its primary purpose would be for archival storage, creating specialized writers that use multiple heads could very well be an option; and If such multiple read/write head drives could be created, it seems plausible to believe that such discs would be capable of carrying not just HD/3-D movies, but something even better, such as movies in a super HD (holographic?) format that hasn’t even been discovered yet.GE also points out that because the new writer uses the same wavelength as Blue Ray, its conceivable drives could be made for the new technology that would be backwards compatible, minimizing risk for both developers and end users. The company is expected to begin building arrangements with interested parties to license the new technology in just the new few months, so actual products appearing on the market can’t be too far off. More information: Press release © 2010 PhysOrg.com General Electric Develops a 500GB Optical Disc This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Data shows fewer tornado days in US but more per event over

first_img Tornados happen in many places, but because of its unique geography, the U.S. has more than any other country—mainly due to the lack of a large mountain dividing east and west. There has been speculation recently, that global warming is causing more tornados to occur—though it has also been suggested it only seems that way because of how quickly information about tornadic events disseminates in the modern era. The trio at NOAA decided to let hard facts tell the story. They collected weather data from the national storm database, which goes back to 1954, to see if they could coax out any patterns (they only included tornados at least as strong as an F1).As it turns out, the trio did find a pattern, they say the data shows very clearly that the U.S. actually has a trend of having fewer days in which there is a tornado over the past two decades—that’s the good news. The bad news is that on days when there is a tornado, there are more than there used to be. The data shows that back in the 1970’s there were just .6 days a year that had 30 or more tornados—after the turn of the century, that number had risen to 3 days per year. Curiously, the numbers suggest that the country still experiences on average, the same number of tornadoes each year, approximately 1,200—they’re just spread out differently. They also noted that the beginning and end of the tornado “season” in recent years has fluctuated more wildly than the years prior to that.The researchers cannot say of course why the spread of tornados has changed in the U.S., though some might suggest it’s due to global warming or even changes in atmospheric conditions in parts of the country due to pollution or other unknown factors. What is clear, is that something is causing a change, and there is now evidence of it, providing a path for moving forward for better understanding what is really going on. Magazine reporting below average numbers of tornados in 2013 This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Image: U.S. National Oceanic and Atmospheric Administration, via Wikimedia Journal information: Science More information: Science 17 October 2014: Vol. 346 no. 6207 pp. 349-352. DOI: 10.1126/science.1257460center_img © 2014 Phys.org Citation: Data shows fewer tornado days in U.S. but more per event over past couple decades (2014, October 17) retrieved 18 August 2019 from https://phys.org/news/2014-10-tornado-days-event-couple-decades.html Explore further A trio of researches with the U.S.’s National Oceanic and Atmospheric Administration (NOAA) has found that though there are fewer total days per year when tornados occur in the U.S., the number that occur on days when there are tornados has increased over the past couple of decades. In their paper published in the journal Science, Harold Brooks, Gregory Carbin and Patrick Marsh describe how they studied weather data over the past half century and what they found when looking for trends.last_img read more

Cool Constructs Room temperature outofplane ferroelectricity at ultrathin atomic limit

first_img Figure 2 | AFM and piezoresponse images of CIPS with different thicknesses. (a–c) AFM topography (a) PFM amplitude (b) and PFM phase (c) for CIPS flakes ranging from 100 to 7 nm thick, on doped Si substrate. Scale bar in a, 1 μm. (d,e) AFM topography (d) PFM amplitude (e) and phase (f) of 2–4 layer thick CIPS on Au coated SiO2/Si substrate. Scale bar in d, 500 nm. (g) the height (black) and PFM amplitude (blue) profile along the lines shown in d and e, respectively. L, Layers. Credit: Liu F, et al. Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes. Nature Communications 7, Article number: 12357 (2016). Copyright © 2016, Rights Managed by Nature Publishing Group. Creative Commons Attribution 4.0 International License. Wang describes the ways in which the researchers addressed these challenges. “To characterize ferroelectricity at nanoscale, the most widely used technique is called piezoresponse force microscopy, or PFM, which utilizes the converse piezoelectric effect.” (In the converse piezoelectric effect, materials become strained when an electric field is applied.) This is a technique that can be implemented using a commercially available atomic force microscope (AFM), in which AC bias can be applied to the AFM probe that serves as a moving electrode on top of the sample. The resulting AC electric field will cause the periodic oscillation of the ferroelectric sample due to this converse piezoelectric effect. The oscillation signal can then be detected by the AFM. “The amplitude of the oscillation represents the piezoelectric response that is proportional to the ferroelectric polarization,” Wang explains, “while the phase of the oscillation represents the direction of the polarization.” In their study, the scientists employed a state-of-the-art approach known as Dual AC Resonance Tracking (DART) PFM developed by Asylum Research to amplify the piezoelectric response by taking advantage of the resonance enhancement. The scientists are planning to study the pyroelectric properties of CuInP2S6 at its two-dimensional limit and apply their findings to developing energy harvesting devices. To that end, he adds, because mechanically exfoliated 2D materials are usually small and unsuitable for device applications, chemical vapor deposition growth of atomically thin CuInP2S6 is under development.”Ferroelectric properties are also very interesting for solar cell applications because of efficient ferroelectric polarization-driven carrier separation,” Liu concludes, “so 2D ferroelectricity-based solar cells could be very interesting, In its liquid phase, 2D ferroelectric CuInP2S6 could be easily hybridized with semiconductor 2D or organic materials – and a solar cell based on these hybrids would be very promising.” Figure 5 | Electric characterization of the vdW CIPS/Si diode. (a) The I–V curves from the typical vdW CIPS/Si diode with 30 nm thick CIPS, by sweeping the bias from 2.5 to −2.5 V, and then back to 2.5 V. Inset is the schematic of the device. (b) Resistance-switching voltage hysteresis loop of the diode measured at a bias voltage of −1.3 V. The schematic representations of the ON and OFF states with respect to the polarization direction are shown in the bottom-left and top-right insets, respectively. (c) Out-of-plane PFM amplitude (black) and phase (blue) measurements on the same diode device shown in a. Credit: Fucai Liu, Lu You, Kyle L. Seyler, Xiaobao Li, Peng Yu et al. Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes. Nature Communications 7, Article number: 12357 (2016). Copyright © 2016, Rights Managed by Nature Publishing Group. Creative Commons Attribution 4.0 International License. Journal information: Nature Communications More information: Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes, Nature Communications 7, Article number: 12357 (2016), doi:10.1038/ncomms12357Related:1. Subatomic deformation driven by vertical piezoelectricity from CdS ultrathin films, Science Advances 01 Jul 2016, Vol. 2, no. 7, e1600209, doi:10.1126/sciadv.16002092. Picoscale precision though ultrathin film piezoelectricity, Phys.org (10 August 2016), http://phys.org/news/2016-08-picoscale-precision-ultrathin-piezoelectricity.html Citation: Cool Constructs: Room temperature out-of-plane ferroelectricity at ultrathin atomic limit (2016, September 5) retrieved 18 August 2019 from https://phys.org/news/2016-09-cool-room-temperature-out-of-plane-ferroelectricity.html , Science Advances This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Explore furthercenter_img Figure 1 | Crystal structure and characterization of CIPS. (a,b) The side view (a) and side view (b) for the crystal structure of CIPS (CuInP2S6) with vdW gap between the layers. Within a layer, the Cu, In and P–P form separate triangular networks. The polarization direction is indicated in by the arrow. (b) The ferroelectric hysteresis loop of a 4-μm-thick CIPS flake. (c) AFM image of the CIPS flakes with different thicknesses. Scale bar, 2 μm. (d) The height profile along the line shown in c. Clear step height of 0.7 nm corresponding to single layer thickness of CIPS can be observed. L, Layers. Credit: Liu F, et al. Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes. Nature Communications 7, Article number: 12357 (2016). Copyright © 2016, Rights Managed by Nature Publishing Group. Creative Commons Attribution 4.0 International License. (Phys.org)—Optoelectronic devices that combine electronics and photonics are incorporating two-dimensional (2D) materials for a range of applications. At the same time, cooperative phenomena – in which a system’s individual components appear to act as a single entity rather than independently – have yet to be widely investigated, an important example being ferroelectricity (spontaneous electric polarization that can be reversed by an electric field) in the 2D limit. Recently, however, scientists at Nanyang Technological University, Singapore have demonstrated room-temperature out-of-plane ferroelectricity (that is, orthogonal to the 2D material) in 2D CuInP2S6 (copper indium thiophosphate) with a ~320 K transition temperature, as well as switchable polarization in 4 nm CuInP2S6 flakes. The researchers state that their findings create the possibility of sensors, actuators, non-volatile memory devices, various van der Waals heterostructures (devices made from layers of dissimilar 2D crystals in which forces are based on molecular attraction or repulsion rather than covalent or ionic bonds), and other novel applications based on 2D ferroelectricity. Finally, in demonstrating a non-volatile memory device with an on/off ratio of ~100 in a CuInP2S6/Si ferroelectric diode, Liu notes that this investigation is just a preliminary demonstration of the possible applications of the 2D ferroelectric material. “A lot of work needs to be done to fully understand the transport mechanisms and how it is coupled to the ferroelectric switching,” he acknowledges. Tunable and mechanically robust ferroelectric ionic plastic crystals Prof. Zheng Liu and Prof. Junling Wang discussed the challenges that they and their colleagues encountered in conducting their study published in Nature Communications. “With reduced dimension, ferroelectricity – namely, long-range electric-dipole order – becomes fragile owing to the depolarization field that is opposing its own electric polarization,” Liu tells Phys.org. “The depolarization field inherently arises in ferroelectric materials due to the imperfect screening of bound charges,” that is, those bound to molecules and so cannot move in response to an external electromagnetic force. The difficulty lies in maintaining a precise geometry, Liu adds, because when the ferroelectric material’s thickness is reduced to its two-dimensional limit, the depolarization field can increase by orders of magnitude. At that point, the depolarization field may place the ferroelectric material into a paraelectric state, the result being disordered electric dipoles with a temporary polarization only when in the presence of an electric field. Therefore, the electrical boundary conditions are extremely important when exploring ferroelectricity at the material’s 2D limit. Moreover, he adds, reporting the experimental observation of switchable polarization in CuInP2S6 films down to 4 nm at room temperature, thickness reduction will greatly weaken the out-of-plane ferroelectric polarization. “This makes characterization of the ferroelectricity very difficult. Moreover, the large ionic conductivity of this material makes the polarization switching quite challenging. We therefore had to choose a small electric field that is just above the coercive field to avoid unwanted ionic motion.”Other concerns include demonstrating the potential of this 2D ferroelectric material by preparing a van der Waals ferroelectric diode formed by CuInP2S6/Si heterostructure. “In the case of CuInP2S6, the chemical composition and phase stability also play a role in stabilizing ferroelectric states – and in the 2D limit, it is difficult to determine the ferroelectricity with traditional methods, such as the time-dependent ferroelectric hysteresis loop measurement, due to large leakage current,” lead author Liu Fucai points out. Regarding potential, he explains that due to the relatively large band gap and thus weak light absorption, few-layer CuInP2S6 appears almost transparent on silicon (Si) substrate. “This situation makes the fabrication of the van der Waals heterostructure quite challenging during the lithography process.” Figure 3 | Ferroelectric polarization switching by PFM for CIPS flakes with different thicknesses. (a) The I–V curves from the typical vdW CIPS/Si diode with 30 nm thick CIPS, by sweeping the bias from 2.5 to −2.5 V, and then back to 2.5 V. Inset is the schematic of the device. (b) Resistance-switching voltage hysteresis loop of the diode measured at a bias voltage of −1.3 V. The schematic representations of the ON and OFF states with respect to the polarization direction are shown in the bottom-left and top-right insets, respectively. (c) Out-of-plane PFM amplitude (black) and phase (blue) measurements on the same diode device shown in a. Credit: Fucai Liu, Lu You, Kyle L. Seyler, Xiaobao Li, Peng Yu et al. Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes. Nature Communications 7, Article number: 12357 (2016). Copyright © 2016, Rights Managed by Nature Publishing Group. Creative Commons Attribution 4.0 International License. “By driving the AC field at the first harmonic contact resonance,” Wang continues, “the piezoelectric oscillation signal can be greatly enhanced. Thus, the small ferroelectric polarization of the ultrathin CuInP2S6 flakes can still be detected by the AFM, as the signal has been amplified by orders of magnitude. This advanced PFM technique helps us to image the fine domain structure with nanometer lateral resolution and picometer vertical resolution, and thereby realize local ferroelectric switching using an AFM probe.”The paper discusses novel applications, including sensors, actuators, non-volatile memory devices, and various van der Waals heterostructures based on 2D ferroelectricity. “By virtue of the piezoelectric effect, ferroelectric materials always have the piezoelectric and pyroelectric properties that allow the use of atomically-thin CuInP2S6 as a strain sensor with high flexibility, such as electric skin monitoring human body motion,” Liu tells Phys.org. “By using the pyroelectric effect, 2D CuInP2S6 could also be used for thermal energy harvesting, and as we know, commercially available ferroelectric random access memory, or FeRAM” – random-access memory similar to DRAM – “with fast writing speed and low-power consumption, but with destructive readout could be improved by employing a ferroelectric diode to achieve non-destructive readout of the information. Considering the quasi-freestanding nature of 2D materials, ferroelectric diodes, or even ferroelectric tunnel junctions with an atomically thin ferroelectric layer may have a much higher ON/OFF ratio, providing the possibility of high-density ferroelectric memories with non-destructive readout.”Regarding the relationship between, and potential applications deriving from, ferro- and piezoelectric effects and van der Waals heterostructure interactions, Liu notes that vertically stacking of different 2D materials with van der Waals force have revealed unusual properties and have been investigated for the application of tunneling transistors, light emitting diodes, and light harvesting devices. “Incorporating ferroelectricity to the van der Waals heterostructure could demonstrate new functionality, such as ferroelectric field transistors and optoelectronic memory, by combining CuInP2S6 with 2D semiconductors.” © 2016 Phys.orglast_img read more