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時間:2022-08-15 來源:本站 點擊:258次

Twitter co******


In this file photo taken on June 4, 2021, Jack Dorsey, CEO of Twitter and co-founder & CEO of Square, attends the cryptocurrency conference Bitcoin 2021 Convention at the Mana Convention Center in Miami, Florida.。

Twitter co-founder and CEO Jack Dorsey announced on Monday he was leaving the company, after steering the social network during the tumult of Donald Trump's presidency and surviving an activist investor's ouster bid in 2020.。

Dorsey, who is also chief executive of payments company Square, was confronted during his tenure by thorny freedom of speech questions, challenges to making the platform profitable and criticism he had spread himself too thin.。

With his recognizable look of a shaved head, long beard and unconventional style, Dorsey for years embodied Twitter.。

"I want you all to know that this was my decision and I own it. It was a tough one for me, of course," he wrote in an e-mail to Twitter staff announcing his resignation as CEO, which was effective immediately.。

"There aren't many companies that get to this level. And there aren't many founders that choose their company over their own ego," he added.。

The company said Twitter's Chief Technology Officer Parag Agrawal has replaced Dorsey in the top post, with Dorsey saying he would remain a member of the board until around May to help with the transition.。

"And after that... I'll leave the board," Dorsey wrote. "Why not stay or become chair? I believe it's really important to allow Parag the space he needs to lead."

Nasdaq briefly suspended trading of Twitter on Monday, citing "news pending," and after some volatility, the price was down over 2.5 percent for the day.。

Trump era。

Like many Silicon Valley celebrities, from Mark Zuckerberg and Steve Jobs to Bill Gates or Michael Dell, Dorsey dropped out of college, never graduating from either of the universities he attended, one in his native Missouri and the other in New York.。

Dorsey is credited with coming up with the idea for Twitter when eventual co-founder Evan Williams gave workers at blogging startup Odeo two weeks to work on new projects as a way to break up the daily routine.。

He ran Twitter from 2007 to 2008 and returned later as CEO after Dick Costolo resigned in June 2015.。

With Dorsey at the helm, Twitter reported its first profitable quarter for the last three months of 2017, and then two full years in the green, before slipping back into the red in 2020.。

Twitter in March 2020 made a deal with key investors to end an effort to oust the chief, creating a new committee on the board of directors to keep tabs on company leadership.。

Dorsey came under pressure in 2020 from Elliott Management amid concerns he had spread himself too thin by running both Twitter and Square.。

During Trump's presidency, which ended in January this year, Twitter was widely seen as the medium used to broadcast America's deepening political and cultural rifts.。

Dorsey took the controversial decision to permanently ban Trump from the platform, where the former president had amassed 88.7 million followers.。

Dorsey made the decision days after Trump whipped up a mob of supporters who stormed the US Capitol, where they tried to prevent Joe Biden being confirmed winner of the 2020 election.。

New CEO。

Twitter's incoming CEO Agrawal joined the company in 2011 and has served as chief technology officer since October 2017, where he was responsible for the network's technical strategy.。

Dorsey cited Agrawal's understanding of the company as key to his decision to step down.。

"There's a lot of talk about the importance of a company being 'founder led.' Ultimately, I believe that's severely limiting and a single point of failure," Dorsey wrote to Twitter staff.。

Agrawal holds a PhD in computer science from Stanford University and a bachelor's degree in computer science and engineering from the Indian Institute of Technology in Bombay.。

"We recently updated our strategy to hit ambitious goals, and I believe that strategy to be bold and right," he wrote in his own message to staff.。

国家卫健委:昨日新增本土确诊124例 在其中陕西6例均在西安市******









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Brackets announced for Sydney 2022 ATP tennis tournament******

SYDNEY, Dec. 7 (Xinhua) -- The ATP Cup announced on Tuesday the group brackets for the upcoming tournament that will take place in Sydney, Australia from January 1 to 9, 2022.。

The ATP Cup will feature 16 country teams, five players each team, in four groups. They will fight over a prize pool of more than 14 million Australian dollars (about 9.87 million U.S. dollars), an increase from the 10 million Australian dollars (about 7.05 million U.S. dollars) that was up for grabs in 2021.。

World No. 1 Novak Djokovic was confirmed to be among the competitors for the top seeding country, Serbia, despite previously refusing to disclose his vaccination status after the Australian Open announced all players must be vaccinated.。

Under current laws, the New South Wales (NSW) government would need to give Djokovic an exemption to enter Sydney and he would be required to complete 14 days of quarantine.。

"Top seed Serbia, headlined by world No. 1 Novak Djokovic, will lead Group A, which will also feature Norway, Chile and Spain," read the ATP announcement.。

He will compete against the defending champion and world No. 2 Daniil Medvedev, playing for Russia in Group B which includes Italy, Austria and home nation Australia.。

Group C will include Germany, Canada, Britain and the United States. Greece, Poland, Argentina and Georgia will compete in Group D.。

Other top contenders include Alexander Zverev playing for team Germany, Stefanos Tsitsipas playing for Greece, and Andrey Rublev playing for Russia.。

For the home team world No. 34 Alex de Minaur and No. 49 James Duckworth will compete for Australia.。

ATP Chief Tour Officer Ross Hutchins said the 2022 line-up "speaks for itself" and Sydney would make an ideal place to kick off the 2022 tennis season.。

"We're delighted that fans will be able to see so many of the world's best representing their countries in the opening week of the season and we look forward to a fantastic event," said Hutchins.。

The third annual 2022 ATP Cup will span nine days in two Sydney tennis venues - the Ken Rosewall Arena and Qudos Bank Arena both in Sydney Olympic Park. Enditem。

12月了为什么还那么暖?不要着急 两次降温雨雪在路上了******




  对于此事西安气象局权威专家表明,2021年西安冬天温度贴近长期,时节内冷热起伏大。 预估 2021/2022 年冬天平均温度0~3°C,与长期同比增加,贴近长期。

  2021年冬天时节内温度分阶段转变特点显著,主要表现为前冬暖后冬冷的趋势分析。依据预测分析,2022 年 1 月中下旬—2月中下旬发生分阶段超低温雨雪天气的概率大。











  本次降温降雨寡照延迟时间长,对设备农作物危害非常大,提议提早结构加固大棚膜,避免 风大撕破大棚膜导致损害,与此同时做好温棚柔光灯、升温、降湿等温棚小气候调节和病虫害防止工作中。

  运用降温前的6、7两日天气晴朗天气时间段,降低棚里自然通风抗压强度,提升发热量堆积,提升棚温,以解决降温全过程产生的棚里超低温低湿自然环境,保证 棚里农作物安全性,与此同时做好隔热保温机器设备的维护保养,防止雨雪冷冻危害一切正常运作。







  华商报小编 毛蜜娜。






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