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時間:2022-08-15 來源:本站 點擊:258次

Omicron in Europe before South Africa reported first cases******


Travelers from South Africa are tested for the coronavirus on arrival in a specially designed test street at Schiphol airport, on November 30, 2021. Dutch health authorities said on November 30 that the new COVID-19 variant was already present in the Netherlands a week before a cluster of cases on two flights from South Africa. The Omicron cases were discovered on November 19 and 23 and authorities are checking whether they had links to southern Africa, and how far the new strain has spread.

The Omicron coronavirus variant was present in Europe before the first cases were reported in South Africa, new data from the Netherlands showed Tuesday, as Latin America reported its first two cases in Brazil.

In the week since the new virus strain was reported to the World Health Organization by South Africa, dozens of countries around the world have responded with travel restrictions – most targeting southern African nations.

But the World Health Organization warned Tuesday – as Canada expanded its restrictions to also include Egypt and Nigeria – that "blanket" travel bans risked doing more harm than good.

And the likely futility of broad travel restrictions was underscored as Dutch authorities reported that Omicron was present in the country before South Africa officially reported its first cases, on November 25.

The new variant – whose high number of mutations the WHO believes may make it more transmissible or resistant to vaccines – was found in two Dutch test samples from November 19 and 23, with one having no travel history.

With countries now on alert for the Omicron variant, a clearer picture is emerging by the day of where it has been circulating, and for how long.

So far, well over a dozen countries and territories have detected cases, including Australia, Britain, Canada, Israel, Italy and Portugal.

Among European countries, Belgium and Germany have both reported cases of the new strain prior to November 25, but both linked to foreign travel.

Latin America reported its first two cases Tuesday – in people who traveled from South Africa to Brazil – and a first case was confirmed in Japan, one day after it barred all foreign arrivals.


While much is still unknown about the Omicron variant – it could take weeks to determine whether and to what extent it is vaccine-resistant – it has highlighted that the global fight against COVID-19 is far from over.

Asian, European and US markets all fell on Tuesday, while the benchmark US oil price tumbled more than five percent after the boss of vaccine manufacturer Moderna warned existing jabs might be less effective against the new variant.

"All the scientists I've talked to ... are like 'this is not going to be good'," Moderna boss Stephane Bancel told the Financial Times, warning against a "material drop" in the effectiveness of current jabs against Omicron.

Moderna, US drugmaker Pfizer and the backers of Russian vaccine Sputnik V are already working on an Omicron-specific vaccine.

On the treatment front, meanwhile, a panel of US health experts voted Tuesday to endorse Merck's COVID pill for high-risk adult patients, which is already authorised in Britain.

'Heavy burden'

In a briefing to WHO member states, the body's chief Tedros Adhanom Ghebreyesus said it was understandable for countries to seek to protect their citizens "against a variant we don't yet fully understand."

But he called for the global response to be "calm, coordinated and coherent", urging nations to "take rational, proportional risk-reduction measures."

The UN agency cautioned in a travel advisery that "blanket" travel bans risked placing a "heavy burden on lives and livelihoods" and could ultimately dissuade countries from sharing data about the evolving virus – as South Africa did in reporting the latest variant.

But it did advise that people not fully vaccinated and considered vulnerable to COVID-19, including over-60s, should put off travel to areas with community transmission of the virus – after correcting a previous statement that indicated all over-60s should defer travel.

Tougher measures

Omicron has emerged as much of the world was already bracing for a new winter wave of the pandemic – leaving even nations with high vaccination rates scrambling to stem infections and prevent health services from being overwhelmed.

Governments, particularly in western Europe, have already reintroduced mandatory mask-wearing, social-distancing measures, curfews or lockdowns – leaving businesses fearing another grim Christmas.

In Germany, incoming Chancellor Olaf Scholz said parliament would vote on making COVID vaccines compulsory by the end of the year – and a source from Scholz's party told AFP he had "signalled his sympathy" for such a rule.

Greece went ahead Tuesday in making vaccines compulsory for over-60s, while Norway will offer booster shots to all adults before Easter, as preferable to a lockdown.

Britain meanwhile set a target of delivering third jabs to all adults within two months, with Prime Minister Boris Johnson saying vaccination centers would be "popping up like Christmas trees."

China to face France, Nigeria, Mali in Women's Basketball World Cup qualifiers******

GENEVA, Nov. 23 (Xinhua) -- China will face France, Nigeria and Mali in Group B of the 2022 FIBA Women's Basketball World Cup qualifying tournaments next February, after the draw was made here on Tuesday.。

The four World Cup qualifiers will be played in Belgrade, Osaka and Washington D.C. from February 10 to 13, 2022, with Belgrade scheduled to host Group A and B matches.。

Group A features Australia, South Korea, Serbia and Brazil. Group C matches, to be staged in Osaka, feature Bosnia and Herzegovina, Japan, Canada and Belarus. In Group D, Russia, the United States, Puerto Rico and Belgium will take each other on in Washington D.C..。

The top three finishers from each qualifying tournament will secure their places in the 12-team flagship global women's basketball competition, which will take place in Sydney, Australia from September 22 to October 1, 2022.。

Host nation Australia and the Tokyo Olympic champions the United States have already earned automatic qualification, meaning that the two other best-placed teams will advance from those qualifying tournaments featuring Australia and the USA. Enditem。

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炸场是真炸场 但也开了倒车 苹果新MacBook Pro值得买吗?******今日凌晨,苹果公布了全新MacBook Pro系列产品,基于M1 Pro和M1 Max芯片打造,采用mini-LED、最高120Hz的ProMotion动态刷新率屏幕,带来了巨大的性能飞跃与体验提升。全新MacBook Pro 14英寸起售价14999元,全新MacBook Pro 16英寸起售价18999元。

专业级M1 Pro和M1 Max芯片 性能强到没朋友

在9月的iPhone 13之后,10月19日凌晨苹果举行了今年的第二场秋季新品发布会,公布了搭载全新专业级芯片M1 Pro、M1 Max的全新MacBook Pro系列产品,以及支持空间音频的AirPods第三代和HomePod mini的三种全新配色,信息量还是很大的。

在宣传上一向克制的苹果在10月13日的发布会预告中甚至使用了一个流行的网络用语“来炸场”,看起来是自信满满。从今天凌晨发布会的效果来说,确实很炸,引起了整个科技圈与消费者的极大关注。尤其是全新的MacBook Pro,可以说是近五年以来的最大更新,在性能和屏幕方面,可以说是强到没朋友。


M1 Pro封装晶体管数达到337亿个,共10核心CPU,包括8个性能核心与2个高效核心;16核心GPU;最高可配置32GB统一内存,内存带宽达到200GB/s。与M1芯片相比,M1 Pro的CPU性能提升70%,GPU性能提升3倍。

至于M1 Max更是夸张,拥有10核心CPU,最高32核GPU,最高配备64GB统一内存,带宽达到400GB/s,接近M1的6倍。M1 Max封装的晶体管总数达到570亿(作为参考,英特尔第十一代酷睿i9-11900K的晶体管数量为60亿),比M1 Pro高出70%,比M1高出3.5倍,因此它也成为苹果迄今为止打造的最大面积的芯片。

连自家的产品都吊打了,与Intel相比,那更是一点也不客气。如果与配备4核英特尔酷睿i7处理器的上一代13英寸MacBook Pro相比,新的14英寸MacBook Pro性能最高可达其3.7倍;如果与配备8核心酷睿i9处理器的上一代MacBook Pro 16相比,新的16英寸MacBook Pro性能最高可达其2.1倍。




至于GPU图形性能,M1 Pro与M1 Max更是成倍地增加,与搭载集成Iris Plus图形处理器的英特尔酷睿i7处理器的13英寸MacBook Pro相比,M1 Max的GPU性能足足提升了13倍。即使是与配备AMD Radeon Pro 5600M独显的16英寸MacBook Pro相比,在Final Cut Pro的8K渲染中也有着2.9倍的性能提升。

可怕的还在后面:同样的性能下,苹果M1 Max芯片的功耗要比搭载高性能移动GPU的PC低了100W,即使是在使用电池的时候,性能发挥依然火力全开。诚然,M1系列芯片基于ARM架构打造,在功耗方面与x86构架相比有着天生的优势,但M1 Max的能耗比也实在是夸张,与X86相比简直是降维打击。

并且,功耗的降低,还带来了电池续航方面的巨大提升。与上代产品相比,此次全新的MacBook Pro的电池续航时间几乎翻了一倍。

屏幕方面,此次新的MacBook Pro 14与16也带来了很大的升级,前者屏幕尺寸为 14.2 英寸,分辨率3204*1964,后者屏幕尺寸为16.2英寸,分辨率3456*2234。二者均采用mini-LED屏幕,最高120Hz的ProMotion动态刷新率、1000尼特持续亮度、峰值亮度1600尼特、对比度高达100万:1、10.7亿色显示、P3广色域、原彩显示技术,可以说,这是目前业界综合素质最优的笔记本屏幕了。

当然了,在综合素质提升明显的情况下,全新的MacBook Pro的价格也更Pro了。全新MacBook Pro 14英寸款,起售价14999元,全新MacBook Pro 16英寸起售价18999元。


综合来看,搭载M1 Pro和M1 Max芯片的全新MacBook Pro的确可以称得上是炸场,最起码在专业生产力型的笔记本电脑品类中,综合体验可以说没有敌手。谈到苹果产品,一向是以整个苹果生态为前提,产品的体验提升,不单纯是硬件的优势,iPhone是这样,这次的MacBook Pro也是这样,M1系列芯片与macOS的生态优势相加,才是全新MacBook Pro的价值所在。

最新的macOS Monterey操作系统已针对M1 Pro和M1 Max芯片进行了深度优化,能够充分利用内置的ISP和AI单元,加强摄像头画质,提供更优体验。另外,除了苹果自家的软件之外,苹果已经与大量第三方专业软件供应商达成合作,针对M1 Pro和M1 Max芯片完成适配与优化工作,包括Adobe系列软件、Blackmagic Design DaVinci Resolve Studio、Maxon Cinema 4D、NASA TetrUSS等,这些软件已经可以利用新款MacBook Pro的性能,实现处理速度的加倍提升。

因此,新的MacBook Pro将成为照片编辑、平面设计、三维渲染、音频制作、视频剪辑、软件开发、STEM教育等专业人士的高效工作站。

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