Showing posts with label Science & Technology - SUCH TV. Show all posts
Showing posts with label Science & Technology - SUCH TV. Show all posts

Saturday, July 25, 2020

Drones will overtake manpower in the agriculture sector: Fawad CH

Drones will overtake manpower in the agriculture sector: Fawad CH

Federal Minister for Science and Technology Fawad Chaudhry
Federal Minister for Science and Technology Fawad Chaudhry said that drones would overtake manpower in the agriculture sector in the next couple of years in the country.

Rejecting a notion that country is lagging behind in technological progress, Fawad Chaudhry while speaking to media said that Pakistan is working on drones technology.

“A major progress in the agriculture field in the next three to five years will be the introduction of drones,” he said adding that they would be used for seeding, monitoring and spray purposes.

We have asked the National Radio Telecommunication Corporation (NRTC) to develop agriculture drones, Fawad Chaudhry said.

He said that they have paved way for locally-manufactured drones and now the country has moved towards its local manufacturing.

He said that they have received 20 drones from China to carry out spray against swarms of locusts as the spray from planes was an insufficient exercise. “A total of 30 drones will be used initially for the purpose,” the federal minister said.

Fawad Chaudhry said that besides drones being used against locusts, it would also be used by Islamabad police and motorway authorities for surveillance purpose on the highways.

Speaking on rising criminal activities in Karachi, the federal minister said that police would use drones in the city to overcome street crime activities.

He said that Pakistan was now manufacturing 99 percent of the finished goods used by the citizens locally. “We will be replacing imports of US$3 billion with local goods in next three to five years,” he said.

He said that a major issue faced before introducing drones was its regulatory process and they are in talks with the authorities to address it.



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Saturday, July 18, 2020

Symptom tracker app reveals six distinct types of COVID-19 infection

Symptom tracker app reveals six distinct types of COVID-19 infection

Six distinct 'types' of COVID-19 identified
British scientists analysing data from a widely-used COVID-19 symptom-tracking app have found there are six distinct types of the disease, each distinguished by a cluster of symptoms.

A King’s College London team found that the six types also correlated with levels of severity of infection, and with the likelihood of a patient needing help with breathing – such as oxygen or ventilator treatment – if they are hospitalised.

The findings could help doctors to predict which COVID-19 patients are most at risk and likely to need hospital care in future waves of the epidemic.

“If you can predict who these people are at Day Five, you have time to give them support and early interventions such as monitoring blood oxygen and sugar levels, and ensuring they are properly hydrated,” said Claire Steves, a doctor who co-led the study.

Besides cough, fever and loss of smell – often highlighted as three key symptoms of COVID-19 – the app data showed others including headaches, muscle pains, fatigue, diarrhoea, confusion, loss of appetite and shortness of breath.

The outcomes also varied significantly; some got mild, flu-like symptoms or a rash and others suffered acute symptoms or died.

The study, released online but not peer-reviewed by independent scientists, described the six COVID-19 types as:

1 ‘Flu-like’ with no fever: Headache, loss of smell, muscle pains, cough, sore throat, chest pain, no fever.

2 ‘Flu-like’ with fever: Headache, loss of smell, cough, sore throat, hoarseness, fever, loss of appetite.

3 Gastrointestinal: Headache, loss of smell, loss of appetite, diarrhoea, sore throat, chest pain, no cough.

4 Severe level one, fatigue: Headache, loss of smell, cough, fever, hoarseness, chest pain, fatigue.

5 Severe level two, confusion: Headache, loss of smell, loss of appetite, cough, fever, hoarseness, sore throat, chest pain, fatigue, confusion, muscle pain.

6 Severe level three, abdominal and respiratory: Headache, loss of smell, loss of appetite, cough, fever, hoarseness, sore throat, chest pain, fatigue, confusion, muscle pain, shortness of breath, diarrhoea, abdominal pain.

Patients with level 4,5 and 6 types were more likely to be admitted to hospital and more likely to need respiratory support, the researchers said.



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Sunday, June 7, 2020

WhatsApp may allow to use single account on multiple devices soon

WhatsApp may allow to use single account on multiple devices soon

WhatsApp
It’s been rumoured for a while but it finally seems WhatsApp is getting ready to unleash the ability to chat on multiple devices.

Currently, WhatsApp only allows only one device to signed up into an account. So if a user were to sign in his WhatsApp account on a new smartphone, the older one would automatically get disconnected.

There’s been plenty of speculation about when this vital upgrade will arrive but the latest reports from WABetainfo suggest it could be coming in the next few months.

In the tweet, WABetainfo said: “From now on WhatsApp is internally starting some important tests for the multi device feature.
The option to use the app on different devices is something its legion of fans have been wanting for years.

There’s no word on how this update will work but could mean WhatsApp is also finally ready to launch a dedicated iPad app.

At the moment, the only way to use WhatsApp on your iPad is in conjunction with an iPhone and launching the chat service on your browser. Not ideal.

According to WABetaInfo, a future version of WhatsApp will give each user a “device list” that, as the name suggests, will show each phone or tablet that has been synced with a particular WhatsApp account.



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Saturday, May 2, 2020

Largest ozone hole above Arctic suddenly closed

Largest ozone hole above Arctic suddenly closed

Largest ozone hole
In a strange happening, the largest hole in the ozone layer ever recorded over the Arctic has suddenly closed just weeks after scientists had announced its existence.

According to the details, the unusually large hole in the ozone layer formed earlier this year and reached its maximum size in March some 11 miles above the surface of the Earth.

Researchers with Copernicus’ Atmospheric Monitoring Service (CAMS) believed the hole was caused by an unusually strong polar vortex, which explained its relatively sudden growth, Mail Online reported.

‘It is very unusual for such strong ozone depletion to occur in the northern hemisphere, but this year’s polar vortex was exceptionally strong and persistent, and temperatures were low enough to allow stratospheric cloud formation for several months,’ Copernicus’ Antje Inness told media.

It is pertinent to mention here that ozone layer helps filter ultaviolet light from the atmosphere, and when holes appear it means more harmful solar radiation is penetrating the atmosphere and reaching the Earth’s surface.

Some scientists suggested the rapid disappearance of the ozone hole might have been caused by the radical reductions in air pollution during the worldwide COVID-19 shutdowns but the CAMS team have rejected the idea.

‘COVID19 and the associated lockdowns probably had nothing to do with this,’ the group wrote in a Twitter post.

‘It’s been driven by an unusually strong and long-lived polar vortex, and isn’t related to air quality changes.’

CAMS team said that just as the hole rapidly formed due to unusually cold polar vortex, its disappearance is likely a result of the polar vortex warming, which causes it to begin mixing with ozone-rich air from the lower atmosphere, offsetting the temporary depletion.



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Wednesday, May 29, 2019

China’s tech ‘Long March’ could be road to nowhere

China’s tech ‘Long March’ could be road to nowhere

China’s tech ‘Long March’ could be road to nowhere
China’s president has called for technological self-reliance in the escalating rivalry with America, but experts believe Beijing’s late start on tech and relatively backward capabilities could make that a mission impossible.

China has no doubt made an amazing transformation, from a former basket case wracked by mass famine and political upheaval to a highly connected society marked by growing use of renewable energy, a space programme, and bullet trains criss-crossing the country.

But a closer look reveals that while China is adept at assembling foreign technologies into commercially successful products at home, its ability to innovate remains deeply hampered, tech experts said.

China is adept at assembling foreign technologies into commercially successful products at home, its ability to innovate remains deeply hampered

Take semiconductors, the building blocks of the global digital architecture.

China’s government has poured money into an effort to develop its own semiconductors and chip designs but has not been able to close the gap with US, Japanese and South Korean rivals.

“One way to look at (China’s situation) is that someone may be able to make beautiful designs out of Legos, but they don’t know how to make the Legos themselves,” said Gabriel Chou, Asia chair for World Semiconductor Trade Statistics, a grouping of semiconductor-product companies.

“(China) is aggressively attacking the end-market, such as mobile phones or other consumer products. But semiconductors require many very fundamental science skills” that China struggles with, Chou added.

The risks are now clear following last week’s move by Washington to ban Chinese telecom and smartphone giant Huawei’s access to critical American chips and other technology.

The ban has thrown the company’s future into doubt, causing a number of Huawei partners around the world to bail on the company and emphatically illustrating US tech clout.

Long March: President Xi Jinping this week telegraphed his alarm, calling for self-reliance in “key core technologies” while saying China faced a “Long March” against foreign challengers — a reference to a now-legendary 1934-35 strategic retreat by Communist revolutionaries.

But a state-directed approach is a bad idea, said Paul Triolo, head of geotechnology at the Eurasia Group.

Triolo said the world’s top tech companies got where they are because open competition with rivals forced them to develop better products and attract the best human capital.

And being plugged into the world tech ecosystem encouraged them to constantly tailor products to evolving market needs to stay ahead of the pack — or die.

“It’s incredibly hard to wean yourself off foreign suppliers in such a highly market-driven sector where you must be on the cutting edge, and that edge is constantly changing and moving outward,” Triolo said.

The very idea of national self-reliance flies in the face of reality, he adds.

Different countries have excelled in different areas and focused on their core competencies to survive, leading to a complex and interconnected global supply chain.

“The US has a lot of dominance, but there are other big players too. China simply can’t be an island and recreate a whole globalised technology ecosystem at home,” Triolo said.

“To reduce dependence they will have to take a different paradigm from the rest of world and that’s tough. It’s not something money is going to solve over the short-term.”

Software glitch: Software is another glaring weak spot. As in the rest of the world, there is no viable alternative in China to Microsoft and Apple on personal computing systems — or to Google’s Android or Apple’s iOS on mobile phones.

US companies also dominate the Chinese landscape for enterprise software.

The United States suspects Huawei has ties to China’s military and fears the company’s installation of telecom networks worldwide could put sensitive data at risk. Huawei denies the charges.

But Chinese software shortcomings leave Huawei vulnerable even on these global networks — the company relies heavily on US software to power them, Triolo said.

“A database has to be really robust and no company in China can do that database software,” he said.

China could nonetheless be a formidable player in next-generation technologies like artificial intelligence, driverless cars and automated manufacturing.

Xi’s government has singled out such futuristic technologies for state development — a programme partly responsible for triggering US pushback on tech.

“We believe China is in a commanding position to become a far more influential player in disruptive technologies globally,” said Kenny Liew, a tech analyst with Fitch Solutions.

He adds that the US-China tech rivalry “will contribute positively to the global technological landscape.”



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