فردا الفبا

پالس اکسیمتر دستگاههای پزشکی هستند که برای اندازه گیری سطح اکسیژن (یا اشباع اکسیژن SpO2) و ضربان قلب در خون مورد استفاده قرار می گیرند. پالس اکسیمتر  یک فاکتور عمومی غیر تهاجمی ، بدون درد و مهم تحویل اکسیژن به بافتها به حساب می آیند. اکسیمترها می توانند SpO2 و ضربان قلب را از انگشت ، گوش گوش ، پیشانی ، انگشتان پا ، مچ یا بینی بدست آورند.

انواع مختلف پالس اکسیمتر

پالس اکسیمتر  بسته به نوع استفاده ، محل خواندن ، سن و یا اندازه فرد ، در اندازه ها و انواع مختلفی قرار می گیرند.

پالس اکسیمتر  انگشت – معمولاً برای چک های نقطه ای استفاده می شوند و فقط قرائت SpO2 را از نوک انگشتان می گیرند. اکسیمترهای انگشت بی سیم می توانند داده ها را به یک برنامه IOS / Android آیفون منتقل کنند که اشباع اکسیژن را ثبت می کند و میزان خواندن میزان خواندن را برای بررسی در زمان بعد می شنود.

پالس اکسیمتر  HandHeld – برای هر دو چک لکه و نظارت مداوم استفاده می شود. اکسیمترهای نگهدارنده توانایی استفاده از سنسورهای مختلفی را دارد که می توان از انگشت ، گوش گوش ، پیشانی ، انگشت پا و بینی استفاده کرد. در صورت اشباع اکسیژن و / یا ضربان قلب ضربان قلب در زیر (برای SpO2 / ضربان قلب) یا بالاتر (فقط ضربان قلب) مقادیر از پیش تنظیم شده دارای حافظه اختیاری برای ضبط داده های اکسی متری و همچنین آلارم های اختیاری (شنیداری / دیداری) هستند. تمام اکسیمترهای دستی برای باتری از واحد باتری استفاده می کنند. غرفه های شارژ اختیاری با باتری های قابل شارژ برای مدل های منتخب موجود است.

پالس اکسی متر مچ دست – اکسیمترهایی هستند که مانند ساعت مچی به مچ دست متصل می شوند و سنسوری دارند که به انگشت وصل می شوند. اکسیمترهای مچ دست به طور معمول برای ضبط داده های اکسی متری در هنگام خواب استفاده می شوند اما می توانند به عنوان یک علامت سنجی از نقطه استاندارد یا ضبط داده های اکسی متری به طور مداوم در طول روز استفاده شوند.

Tabletop Pulse Oximeter – برای هر دو چک لکه و نظارت مداوم استفاده می شود. اکسیمتر تبلت توانایی استفاده از سنسورهای مختلفی را دارد که می توان از آنها در انگشت ، گوش گوش ، پیشانی ، انگشت پا و بینی استفاده کرد. اگر اکسیژن اکسیژن و / یا ضربان ضربان قلب در زیر (برای SpO2 / ضربان قلب) یا بالاتر (فقط ضربان قلب) مقادیر از پیش تنظیم شده ، دارای حافظه برای ضبط داده های اکسیمتری و آلارم (شنوایی / بصری) هستند. تمام اکسیمترهای جدول به برق متصل شده و دارای باتری های داخلی هستند که این واحد در حالی که به سیستم وصل نشده اند ، برق را فعال می کنند. درپوش های میز دارای گزینه های سنسور یا سیم بی سیم (فقط Aulisa) هستند.

پالس بی سیم سنجهای بی سیم – داده های اکسی متری (SpO2 و ضربان قلب) را به یک دستگاه IOS / Android آیفون برای ضبط داده یا به یک صفحه نمایش که هشدار می دهد (فقط Aulisa) انتقال می دهد. اکسیمترهای بی سیم در پیکربندی های انگشت ، مچ دست و جدول قرار دارند.

MRI Safe Pulse Oximeter – برای کار در محیط های MR طراحی شده است.

PureSAT  فناوری

فقط پمپ های پالس نونین دارای فناوری PureSAT ox پالس اکسیمتری هستند که از فیلتر پالس به پالس هوشمند برای اندازه گیری دقیق اکسی متری استفاده می کند – حتی با وجود حرکت ، پرفیوژن کم یا سایر شرایط چالش برانگیز. PureSAT به طور خودکار با شرایط هر بیمار تنظیم می شود تا خوانش های سریع و قابل اطمینان را که می توانید بر روی آنها انجام دهید فراهم کند. پمپ های پالس نونین آرامش خاطر را برای شما فراهم می کنند که نتایج مانیتورینگ شما دقیق باشد — و به شما امکان می دهد با ناپایدار شدن سطح اکسیژن خود سریعتر و با اطمینان پاسخ دهید.

روی Nonin برای راه حل های قابل اعتماد اکسیمتری حساب کنید

برای کسب اطلاعات بیشتر در مورد دستگاههای قدرتمند پالس اکسیمتری برای استفاده شخصی با نونین تماس بگیرید. تیم ما می تواند به شما در یافتن راه حل مناسب برای نظارت بر خود برای نیازها و اهداف بی نظیر مراقبت های بهداشتی کمک کند. همچنین می توانید برای اطلاعات بیشتر در مورد فن آوری پالس اکسیمتری و اینکه چگونه می توانید از این ابزارها برای مدیریت آسم ، COPD و سایر شرایط چالش برانگیز استفاده کنید ، با ما در ارتباط باشید. ما در اینجا برای هر آنچه شما نیاز دارید اینجا هستیم.

Follow the latest transfer news live from the second week of the summer window as Premier League clubs look to strengthen their squads, with European football also set to resume this week. Fresh from their FA Cup final victory on Sunday, Arsenal are set to dominate the headlines this week with talks ongoing to extend Pierre-Emerick Aubameyang’s contract beyond the end of the season, while Mikel Arteta is also targeting Sevilla centre-back Diego Carlos.

Tottenham Hotspur meanwhile have been offered the chance to sign Watford captain Troy Deeney in an effort to keep the striker in the Premier League, while Aston Villa are understood to be looking at a move for Liverpool forward Divock Origi.

Manchester United are set for a busy summer with interest in both Jadon Sancho and Jack Grealish, but one name who has cropped up on the radar is Lille defender Gabriel Magalhaes after executive vice-chairman Ed Woodward reportedly held talks with his agent last week. United are also keeping an eye on Inter Milan’s Milan Skriniar, though the defender may be priced out of a move to Old Trafford. Follow the live news below.

Show latest update

2020-08-03T06:29:13.780Z

Good morning and welcome back to The Independent’s transfer news live blog!

With the longest ever Premier League season finally wrapped up and consigned to the history books, attentions once again turn to the summer transfer window, which opens nearly two months later than normal.

Clubs are set for a busy 10 weeks until the 5 October transfer deadline, with a number already confirmed to be in the market to reinforce their squads ahead of the 2020/21 season – which will begin on the weekend of 12 September in fewer than seven weeks’ time.

Without further ado, let’s take a look at the headlines this morning.

Liverpool are still being linked with a move for Bayern Munich midfielder Thiago Alcantara, though French champions Paris Saint-Germain have entered the race for the Spain midfielder as he nears a move away from Bayern Munich.

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The government’s new “Eat Out to Help Out” scheme is launching on 3 August and will give diners the opportunity to enjoy 50 per cent off their meals at participating restaurants.

The scheme was launched as a bid to encourage the public to support the hospitality industry by going out to eat at local restaurants.

It will run from every Monday to Wednesday throughout the month and will entitle diners to half off their meals up to the value of £10 a head.

Alcohol is not included in the deal.

In order to claim your discount, you simply have to visit one of the participating restaurants within the timeframe.

The scheme means that a family of five can go out for dinner and have a meal worth £100 for £50.

The restaurants will then claim back the rest of the money from the government.

While any business serving food can sign up to the ”Eat Out to Help Out” scheme, there are a number of chain restaurants that have already announced their participation.

See the list below for some of the restaurants that will be offering diners 50 per cent off in August.

• All Bar One
• Ask Italian
• Bella Italia
• Bill’s
• Browns
• Burger King
• Byron
• Caffe Nero
• Cafe Rouge
• Castle pubs
• Costa Coffee
• Ember Inns
• Five Guys
• Franco Manca
• Frankie & Benny’s
• Fullers
• Gourmet Burger Kitchen
• Greene King
• Harvester
• Honest Burgers
• KFC
• Las Iguanas
• McDonald’s
• Miller & Carter
• Nando’s
• Nicholson’s
• Oak Tree
• Orchid Pubs
• O’Neill’s
• Patisserie Valerie
• Pizza Express
• Pizza Hut
• Premium Country Pubs
• Pret A Manger
• Prezzo
• Sizzling Pubs
• Starbucks
• Stonehouse Pizza & Carvery
• Toby Carvery
• Turtle Bay
• Vintage Inns
• Wagamama
• Wetherspoon
• YO! Sushi
• Zizzi

According to chancellor Rishi Sunak, more than 72,000 eateries have signed up to the scheme.

If you can’t see your local chain or restaurant above, the best way to find out if they will be participating in the scheme is to either use the government’s postcode checker, contact the restaurant directly or check their social media pages.

You can read more about the “Eat Out to Help Out” scheme here.

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Brian Blessed appeared as a guest on ITV’s Lorraine this morning and shocked viewers with his thoughts on coronavirus.

In the middle of a rant about the pandemic, the actor said: “This Covid virus – I really want to say one swear word – bugger off!”

The British actor and TV personality continued: “We will beat it, it will go away. I believe in the human spirit and we are showing immense courage in this country, down to the NHS.”

Host Christine Lampard, who was standing in for Lorraine Kelly, hurried to apologise for the actor’s bad language.

“It has been the most extraordinary time,” she said, adding: ”I’m sure some of us would use even a stronger word than that, but obviously we can’t and we will apologise for any bad language.”

The video of Blessed’s appearance on the ITV morning show has since circulated on social media, with viewers sharing it widely on Twitter.

On the show, the 83-year-old actor spoke about his desire to be the oldest man on the moon and discussed his exercise regime of bench pressing and five-mile runs.

Blessed, who starred as Prince Vultan in the 1980 film Flash Gordon, also warned against directors attempting a remake of the classic.

“If anyone wants to make another one, I’ll smack them straight to the Gods,” he said.

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Jonny Bairstow helped England move into an unassailable lead against Ireland in the Royal London series on Saturday with a barnstorming 82 from 41 balls before admitting he hopes to earn a Test recall through the Bob Willis Trophy.

Bairstow needed just 21 balls to reach his fifty at the Ageas Bowl to equal the record for the fastest one-day international half-century by an England batsman first set by Eoin Morgan against Australia two years ago.

The Yorkshireman’s departure sparked a middle-order wobble that saw England lurch from 131 for three to 137 for six, but Sam Billings (46no) and David Willey (47no) put on an unbroken 79 to lead the hosts to a four-wicket victory in 32.3 overs.

While Bairstow, who clubbed 14 fours and two sixes in his belligerent innings, continues to prove he is among the most accomplished white-ball openers around, he was quizzed afterwards about how he rates his Test prospects.

Despite being included in a red-ball training group prior to the #raisethebat series against the West Indies, he was a high-profile omission from the squad which claimed a 2-1 victory.

And while a Test return seems to be high on his list of priorities, Bairstow is well aware he will need several eye-catching performances for Yorkshire in the inaugural and one-off Bob Willis Trophy to force his way back in.

He said: “I’ll be going back and playing for Yorkshire in the four-day comp. I’ll be trying my best, that’s all I can do, to put myself back in the shop window to be selected in the Test squad again.

“At the moment I’m concentrating on scoring runs and trying to get a lot of them here and then down the line, what happens happens.”

Bairstow’s blitz – after Adil Rashid’s three for 34 which took him to 150 ODI wickets, the first English spinner to reach the milestone – helped England go 2-0 up on Ireland, rendering Tuesday’s meeting a dead rubber.

He admitted a slight frustration at being unable to go on and reach three figures but was unrepentant at the swipe to a fuller delivery from left-armer Josh Little that he feathered behind.

Reflecting on the innings, Bairstow said: “I’m pretty happy. Obviously you naturally want to get a hundred but to go out and score 80-odd was pleasing.

“It’s a pretty nice feeling to get us off to a start like that. I think when you’re chasing slightly lower scores on a pitch that might not necessarily be coming on as much, it can be slightly tricky.

“Obviously I’d have liked to have gone on and seen it home but the manner in which we’re playing in and how we’ve been playing over a period of time, we want to keep going with that.”

With the likes of World Cup-winning trio Ben Stokes, Joe Root and Jos Buttler missing from the top order because of their Test commitments, a number of fringe players have been given their chance to shine. Bairstow admitted there is a bit more of a burden on his shoulders, but it is an experience he enjoys.

He added: “There’s naturally a little bit more pressure on but that’s why you play the game, that’s why you want to be out there in the middle and we thrive on pressure and responsibility.

“You want to be setting the standard for guys that are coming into the side to see how far you can push yourself in order to get better and hopefully that feeds down into the guys that are playing their first games.”

Ireland slipped to 91 for six before Curtis Campher followed up his 59 not out on his international debut with another mature innings of 68 as the tourists reached a more respectable 213 for nine.

Campher earned more praise from captain Andrew Balbirnie, who knew where the blame lay for his side’s defeat.

Balbirnie said: “It’s simply down to the batting again. Credit to Curtis again I thought he was brilliant.

“He looks very at home, I thought his tempo was very good, he built a nice innings and got us to a respectable total in the end and gave us something to bowl at. He’s just really impressing all of us on a day to day basis.”

PA

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Argos has announced it is bidding farewell to its iconic shopping catalogue after almost 50 years of circulation.

The bi-annual publication has been a staple in people’s homes since 1973, with over one billion copies and 93 editions printed in its 47-year tenure.

However, having concluded that its website and app offer customers “greater convenience” than its printed catalogue, Argos has decided to axe the shopping resource and continue to “invest in in-store technology”.

“Today, Argos is now an innovative multi channel retailer. The Argos website is the third largest retail website in the UK – with more than one billion visits each year – and customers shopping on smartphones and tablets now account for more than 70 per cent of all Argos online sales,” the retailer said in a press release.

Mark Given, chief marketing officer at Sainsbury’s, of which Argos is a subsidiary, highlighted the impact the Argos catalogue has had in the UK over the past half a century.

“Over the decades the Argos catalogue has charted the nation’s changing tastes and trends in everything from must-have toys to the latest gadgets and devices,” he said.

“Just as our customers’ tastes have changed over the years, so have their shopping habits. We’re seeing an increasing shift towards digital shopping, using our mobile app, website and in-store browsers.”

Mr Given explained that making the decision to cease printing the catalogue will help the retailer to “focus on delivering exciting and inspiring digital shopping experiences to meet the changing needs of our customers, both in-store and online”.

Argos has assured customers that its Christmas gift guide will still be printed, alleviating worries that members of the public will no longer be able to browse the gift guide and circle items on their wish list.

Several people responded with sadness to the news of the Argos catalogue coming to an end, with some sharing fond memories of using the catalogue during their childhoods.

“So long Argos catalogue, I’ll miss skipping straight to the toys section,” one person said. “If it wasn’t for you my parents wouldn’t have had a f***ing clue.”

“Can’t we have anything good in 2020? RIP #Argos catalogue. My favourite book from childhood,” another remarked.

Someone else tweeted that while it has been years since they last opened an Argos catalogue, “news of this being axed reminded me of my childhood spent circling items and turning down page corners creating my ultimate wish list items”.

One Twitter user raised the point that some elderly people may not feel as comfortable using digital devices to shop, as opposed to sourcing products from a catalogue.

“My nana is 79 and even though she has a tablet she doesn’t know how to do things like online shopping,” they said.

Another stated that just this morning their daughter browsed the Argos catalogue to see what items she might like.

“I think they’re making a big mistake, you can’t browse easily online, you have to have an idea of what you want before you find stuff,” they commented.

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Whether it’s Kevin Bacon unexpectedly getting an arrow through the throat while lying in bed in Friday the 13th, Ted Danson’s waterlogged walking corpse in Creepshow, or a zombie getting the top of its head sliced off by a helicopter blade in Dawn of the Dead, Tom Savini is responsible for some of horror cinema’s greatest moments. Yet not everybody realises that a lot of this iconic gore was inspired by the special effects guru’s traumatic time serving as a field photographer in Vietnam.

“I saw some pretty horrible stuff,” the horror legend, now 73, tells me soberly. “I guess Vietnam was a real lesson in anatomy.” While serving with the US military, Savini learnt details such as the way blood turns brown as it dries or how our bodies lose control of the muscles when we die. “This is the reason why my work looks so visceral and authentic,” he adds. “I am the only special effects man to have seen the real thing!”

Many people would have lost their minds when confronted by such suffering, but Savini, who as a child created masks and fake blood in his bedroom after being inspired by classic 1950s horrors like Man of a Thousand Faces and Creature from the Black Lagoon, used this childhood passion as a way to disconnect. “What saved me from going insane in Vietnam was looking at these horrible scenes like they were a special effect someone else had created,” he explains further. “I tried to disconnect from the horror and wondered how I could recreate it as a special effect myself.”

That’s not to say these experiences weren’t incredibly damaging: “To do what I was doing as a photographer, well, you had to switch off your emotions, and I guess they don’t just come back on immediately afterwards. When I got back home I had PTSD, my marriage went down the toilet and [for a long time] I was an emotionless zombie, but it somehow set me on the path for a career in the movies.”

Upon his return to his home town of Pittsburgh, Savini quickly landed a job as a makeup artist on Deathdream, an underrated, low-budget 1974 horror about a soldier who returns permanently altered from his experiences in Vietnam. The parallels were obvious and Savini was rarely out of work from that moment onwards. Throughout the 1980s, he pioneered a new visceral approach to horror special effects and animatronics, becoming a regular collaborator with late visionary horror director George A Romero, shaping the colourful kills in Romero classics such as Martin, Dawn of the Dead, Day of the Dead, Knightriders and Creepshow.

Although a lot of Savini’s work appears brutal, there’s a goofiness that underpins it, which is accentuated by over-the-top comic-book death sequences and killers who look like otherworldly bogeymen. In Creepshow (1982), for example, there’s a hick (played by author Stephen King, no less) whose flesh slowly turns into weeds, a bizarre vision that somehow manages to be both comically surreal and skin crawling. “I was seen as the king of splatter, but for Creepshow I finally got to design what was in my dreams!” Savini says.

His playfulness stretches back to early experiments with fake blood as a form of escapism to forget about the rigidness of Catholic school. “My work is a matter of pulling together all the right materials and creating a magic trick, something I’ve been doing since I was a boy,” he says. “You are fooling people into believing in the illusion. I guess me and Romero wanted to be magicians of murder. If you see our names on the cinema billboard then you know you’re in for a really great magic show that will make you laugh but may also give you nightmares.”

One of the pair’s greatest collaborations, 1985’s Day of the Dead, recently celebrated its 35th anniversary. The film focuses on a group of scientists and military survivors who are holed up in an underground facility as the zombie apocalypse wreaks havoc outside. The way it delves into the toxic claustrophobia of self-isolation and its portrayal of figures of authority hiding from the chaos of the world feels prescient, calling to mind claims that President Trump hid in a White House bunker to avoid angry protestors. But it is the special effects that really make the film – the third in Romero’s Undead trilogy – fly. One sequence, which shows the villainous Captain Rhodes ripped limb-from-limb by a group of zombies, his vocal chords straining as his head is torn off, is difficult to forget.

“I learnt that people decompose differently depending on who they are or where they were when they died. So I tried to make every single zombie in Day of the Dead look like they were at a different stage of death. Romero let me be as ambitious as I wanted!” Savini recalls affectionately. “That film was my masterpiece. It was this big new adventure of killing people in outlandish ways. I would say 80 per cent of the work I did with Romero was improvised. If he liked an effect, he would wink at me and make this cricket sound. We had our own language.”

But that’s not to say Savini looks back at all their work together through rose-tinted glasses. “The blood I used in Dawn of the Dead was horrible,” he claims. “It looked good in the bottle, but it photographed like melted crayons and had this awful pink colour. Thankfully, just before I worked on Friday the 13th, Dick Smith [the legendary special effects man who masterminded the effects for Regan in The Exorcist] told me his blood formula and everything was okay from then onwards.” So what was the formula, I ask. “Oh, corn syrup mixed with yellow and red food colouring.”

Savini also looks back fondly on his work with Italian horror auteur Dario Argento, particularly on 1993’s Trauma, a film about a murderer who exclusively decapitates his victims. He says the film taught him how to improvise when things don’t go to plan. “Piper Laurie was claustrophobic, so we couldn’t make a cast of her head. So I ended up putting her on a stool underneath the flooring of the set and spun it around so it looked like her head was rolling off her shoulders. From that day onwards, Argento called me the ‘volcano of the mind’. He was the greatest visual stylist I ever worked with.”

Yet Savini admits that some of his own effects might have gone too far, particularly in 1980’s Maniac, a video nasty about a loner who sadistically kills women. The movie even features Savini, who appears as a victim, getting his head, a prosthetic that had blood filled condoms inside, blown off with a shotgun. “They originally wanted really extreme sexual murders, but I said no to some of it, so what you see in the film is actually a lot less than what was planned!” He doesn’t seem to relish the memories of being the effects lead on The Burning (1981), a slasher flick which was Harvey Weinstein’s first film for Miramax. “That film was so rushed. Harvey was creepy and loathsome, even back then. I had no idea he was doing those things.”

It’s worth noting that Savini has also enjoyed a varied career as an actor, utilising his love for fencing and motorcycles for badass roles in films such as Dawn of the Dead (1978), From Dusk Till Dawn (1996) and Machete (2010). In these movies, he has the look of a man who could kill you with just a stare. “I model myself on Charles Bronson,“ he says of his acting approach. ”I want to be the epitome of the macho man and the strong, silent type. You either have it or you don’t. You can’t fake it. I guess I miss when men were men. You don’t have a Robert Mitchum today and that’s a shame.”

Approaching his mid-seventies, Savini’s main passion nowadays is teaching students how to become special effects maestros via his celebrated make-up effects programme at the Douglas Education Center in Pennsylvania. Celebrating its 20th anniversary this year, the course teaches students how to create natural life-like effects without the need for CGI. “You name a big studio movie from the last 15 years and one of my students worked on it. At the end of the course, I make them re-design a classic horror character. They’re all like my own Dr Frankensteins!”

Has the course been a way for Savini, whose work has slowed down over recent years, to maintain his CGI-less approach to special effects and keep Hollywood authentic? “When I hear of there being more practical effects in the new Star Wars or Evil Dead,“ he says, ”it makes me happy. There seems to be a desire to actually make things again. If I’ve played a role in that then that’s really nice.” As for his own legacy, and how he would like to be remembered, Savini concludes: “My father could do everything! He was a plumber, an electrician, a carpenter, a shoemaker. I always wanted to emulate him. Whether it is directing, acting or doing make-up and prosthetics, I just want to be remembered as someone who could do many things well.” I suspect he will be.

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اگر فکر ساخت لپ تاپ خود تا به حال عبور خود را در ذهن CrowPi2 باید فوت و فن انجام دهد. این برنامه شامل یک 11.6″ 1920×1080 با وضوح IPS و یک جابجایی محاسبات واحد که شامل یک صفحه کلید بی سیم, trackpad, سنسور, ویدجت ها و بخش های دیگر را برای شما برای تکمیل پروژه های با. بدنه اصلی خانه 2MP دوربین میکروفون استریو بلندگو و تمشک Pi واحد است که نصب وارونه در پایه متصل به 40-پین کانکتور. ادامه مطلب برای یک ویدیو تصاویر بیشتر و اطلاعات است.

CrowPi2 سازگار با هر دو Raspberry Pi 3 و Raspberry Pi 4 و همراه با HDMI آداپتور برای هر دو. یک بار بالا و در حال اجرا وجود دارد 70 درس پوشش خراش, Python, AI و فوتبال را برای شما به یاد بگیرند. به علاوه 30+ اضافی و پروژه های Python بازی به کشف تمشک Pi کامل با آفلاین مدیریت حساب برای کمک به شما در صرفه جویی در پیشرفت و دستاوردهای. اطلاعات بیشتر در اینجا.

فروش

CanaKit Raspberry Pi 4 4GB کیت استارتر – 4GB RAM

• شامل Raspberry Pi 4 4GB مدل B با پردازنده 1.5 GHz 64-bit octa-core پردازنده ARMv8 (4GB RAM)
• 32GB Samsung EVO+ میکرو SD کارت (کلاس 10) از قبل لود شده با NOOBS, USB, کارت حافظه MicroSD Reader
• CanaKit حق بیمه بالا و براق Raspberry Pi 4 مورد با فن یکپارچه کوه CanaKit کم سر و صدا تحمل سیستم فن
• CanaKit 3.5 USB-C Raspberry Pi 4 منبع تغذیه با سر و صدا فیلتر مجموعه ای از گرما غرق Micro HDMI to HDMI Cable – 6 پا (پشتیبانی تا 4K 60p)
• CanaKit USB-C PiSwitch (روشن/خاموش سوئیچ قدرت برای Raspberry Pi 4)

وجود دارد سه نوع در دسترس: پایه و پیشرفته. هر بالاتر, نوع, همراه با , بیشتر, در حالی که متوسط و پیشرفته شامل یک Raspberry Pi 4 4GB kit.

پست های مرتبط

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Branden Grace has been ruled out of next week’s US PGA Championship after testing positive for coronavirus during the Barracuda Championship.

The 32-year-old South African was in a share of second at the PGA Tour event in Nevada but withdrew ahead of the third round and will now go into isolation for 10 days.

“I felt great all week,” Grace said. “Last night, I was tired and thought it had to do with the altitude. This morning, I notified the PGA Tour about my symptoms before going to the golf course.

“I wanted to get tested out of respect for my peers and everyone involved with the tournament. While it is unfortunate given my position on the leaderboard, the most important thing is our health.”

A PGA Tour statement added: “The PGA Tour has implemented its response plan in consultation with medical experts, including working with those who may have had close contact with Grace.

“Grace’s caddie tested negative for Covid-19, but in accordance with CDC guidelines and Tour health and safety protocols, he will quarantine for a period of 14 days.

“After conducting necessary contact tracing, the Tour’s medical advisors are not recommending any additional testing at this time.

“Grace will have the PGA Tour’s full support throughout his self-isolation period of 10 days per CDC guidelines and Tour health and safety protocols.”

The rescheduled US PGA, which will be the first major of 2020 following the Covid-19 pandemic, starts at TPC Harding Park on Thursday.

PA

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Details have been revealed about how Facebook CEO Mark Zuckerberg planned to buy Instagram.

Emails were revealed as part of a series of antitrust hearings with Apple CEO Tim Cook, Google CEO Sundar Pichai, Amazon CEO Jeff Bezos, as well as Zuckerberg.

The documents provided to the committee showed how Mark Zuckerberg emailed David Ebersman, Facebook’s chief financial officer, in February 2012 about buying competitors including Instagram and Path.

“These businesses are nascent but the networks established, the brands are already meaningful, and if they grow to a large scale the could be very disruptive to us,” he wrote.

“Given that we think our own valuation is fairly aggressive and that we’re vulnerable in mobile, I’m curious if we should consider going after one or two of them. What do you think?”

Ebersman replies that Zuckerberg would need a compelling explanation behind the purchase, whether that is “neutrali[sing] a potential competitor” or “integra[ting] their products with ours in order to improve our service”.

Facebook has since tried to merge Instagram and Facebook closer together, including linking the backbone of their messenger infrastructure with the two apps as well as WhatsApp.

Such a process may benefit users by offering WhatsApp encryption to other apps, but would also likely benefit Mark Zuckerberg amidst notions that these companies need to be broken up; merging the three platforms could make that more difficult.

“Once someone wins at a specific mechanism, it’s difficult for others to supplant them without doing something different”, Zuckerberg replied.

“One way of looking at this is that what we’re really buying is time. Even if some new competitors springs up, buying Instagram, Path, Foursquare, etc now will give us a year or more to integrate their dynamics before anyone can get close to their scale again.”

Zuckerberg then clarified that he was not implying that buying them would be to “prevent them from competing with us in any way” and that it was to “incorporate their innovations” into Facebook “which is how we’d do the integration rather than actually combining the products”.

However, other emails from Zuckerberg contradict this. “Instagram can hurt us meaningfully without becoming a huge business,” he wrote in an email.

“I remember your internal post about how Instagram was our threat and not Google+. You were basically right”, Zuckerberg also emailed to a Facebook employee.

“One thing about startups though is you can often acquire them.”

Zuckerberg reiterated this thought in another email: “One reason people underestimate the importance of watching Google is that we can likely always just buy any competitive startups, but it’ll be a while before we can buy Google”

Since purchasing Instagram, tensions between its original founders – Kevin Systrom and Mike Krieger – and Mark Zuckerberg seemed palpable. When resigning in 2018, the two said it was to explore “our curiosity and creativity again”

A Wired report from 2019 suggests that Zuckerberg wanted users to remain posting on Facebook rather than Instagram.

Zuckerberg reportedly threatened to pull Facebook support for the photo sharing app, including allowing Instagram to access a Facebook users’ friends, cross-posting to Facebook, and adverts on Facebook for Instagram.

“I’ve always been clear that we viewed Instagram as both a competitor and as a complement to our services,” Zuckerberg said to congress, Techcrunch reports.

“At the time, almost no one thought of them as a general social network,” Zuckerberg also claimed.

At the time of the purchase, Instagram was already shooting to popularity and had millions of iPhone users.

“This is an important milestone for Facebook because it’s the first time we’ve ever acquired a product and company with so many users,” Zuckerberg said at the time.

“We don’t plan on doing many more of these, if any at all. But providing the best photo-sharing experience is one reason why so many people love Facebook, and we knew it would be worth bringing these two companies together.

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