Earthquakes unveil deep rock structure under East Asia

May 15, 2015

Washington, May 15: Scientists have found a towering rock structure deep under East Asia by using 3-D supercomputer simulations of data from 227 earthquakes that hit the region during 2007-2011.

deep rock

The finding could throw light on the fate of the subducted continental plates beneath the Tibetan Plateau, known as ‘the roof of the world,’ which rises about 5km above sea level.

The work may also help find hidden hydrocarbon resources, and more broadly it could help explore the Earth under East Asia and the rest of the world, researchers said.

“We are combining different kinds of seismic waves to render a more coherent image of the Earth,” said principal investigator and lead author Min Chen from the Rice University.

Researchers combined seismic records from thousands of stations for each earthquake to produce scientifically accurate, high-resolution 3-D tomographic images of the subsurface beneath immense geological formations.

Like a thrown pebble generates ripples in a pond, earthquakes make waves that can travel thousands of miles through the Earth.

A seismic wave slows down or speeds up a small percentage as it travels through changes in rock composition and temperature.

The scientists mapped these wave speed changes to model the physical properties of rock hidden below ground.

“We found that beneath the Tibetan plateau, the world’s largest and highest plateau, there is a sub-vertical high velocity structure that extends down to the bottom of the mantle transition zone,” the principal investigator said.

The bottom of the transition zone goes to depths of 660 kilometres, she said.

“Three-dimensional geometry of the high velocity structure depicts the lithosphere beneath the plateau, which gives clues of the fate of the subducted oceanic and the continental parts of the Indian plate under the Eurasian plate,” she added.

The research was published in the Journal of Geophysical Research, Solid Earth.

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News Network
January 23,2020

Mumbai, Jan 23: Rashmi Sahijwala never expected to start working at the age of 59, let alone join India’s gig economy—now she is part of an army of housewives turning their homes into “cloud kitchens” to feed time-starved millennials.

Asia’s third-largest economy is battling a slowdown so sharp it is creating a drag on global growth, the International Monetary Fund said Monday, but there are some bright spots.

The gig economy, aided by cheap mobile data and abundant labour, has flourished in India, opening up new markets across the vast nation.

Although Indian women have long battled for access to education and employment opportunities, the biggest hurdle for many is convincing conservative families to let them leave home.

But new apps like Curryful, Homefoodi, and Nanighar are tapping the skills of housewives to slice, dice and prepare meals for hungry urbanites from the comfort of their homes.

The so-called cloud kitchens—restaurants that have no physical presence and a delivery-only model—are rising in popularity as there is a boom in food delivery apps such as Swiggy and Zomato.

“We want to be the Uber of home-cooked food,” said Ben Mathew, who launched Curryful in 2018, convinced that housewives were a huge untapped resource.

His company—which employs five people for the app’s daily operations—works with 52 women and three men, and the 31-year-old web entrepreneur hopes to get one million female chefs on-board by 2022.

“We usually train them in processes of sanitisation, cooking, prep time and packaging... and then launch them on the platform,” Mathew told news agency.

One of the first housewives to join Curryful in November 2018 shortly after its launch, Sahijwala was initially apprehensive, despite having four decades of experience in the kitchen.

But backed by her children, including her son who gave her regular feedback about her proposed dishes, she took the plunge.

Since then, she’s undergone a crash course in how to run a business, from creating weekly menus to buying supplies from wholesale markets to cut costs.

The learning curve was steep and Sahijwala switched from cooking everything from scratch to preparing curries and batters for breads in advance to save time and limit leftovers.

She even bought a massive freezer to store fruits and vegetables despite her husband’s reservations about the cost.

“I told him that I am a professional now,” she told news agency.

‘Internet restaurants’

Kallol Banerjee, co-founder of Rebel Foods which runs 301 cloud kitchens backing up 2,200 “internet restaurants”, was among the first entrepreneurs to embrace the concept in 2012.

“We could do more brands from one kitchen and cater to different customer requirements at multiple price points,” Banerjee told AFP.

The chefs buy the ingredients, supply the cookware and pay the utility bills.

The apps—which make their money through charging commission, such as more than 18 percent per order for Curryful—offer training and supply the chefs with containers and bags to pack the food in.

Curryful chef Chand Vyas, 55, spent years trying to set up a lunch delivery business but finally gave up after failing to compete with dabbawalas, Mumbai’s famously efficient food porters.

Today Vyas works seven hours a day, five days a week in her kitchen, serving up a bevy of Indian vegetarian staples, from street food favourites to lentils and rice according to the app’s weekly set menus.

“I don’t understand marketing or how to run a business but I know how to cook. So, the current partnership helps me focus on just that while Curryful takes care of the rest,” Vyas told AFP.

She pockets up to $150 (Rs 10,000 approx) a month after accounting for the commissions and costs, but hopes to earn more as the orders increase.

In contrast, a chef at a bricks-and-mortar restaurant takes home a monthly wage of between $300 (Rs 20,000 approx) and $1,000 (Rs 70,000) approx for working six days a week.

With India’s cloud kitchen sector expected to reach $1.05 billion by 2023, according to data platform Inc42, other companies are also keen to get a slice of the action.

Swiggy, for example, has invested 2.5 billion rupees ($35.3 million) in opening 1,000 cloud kitchens across the nation.

Back in her Mumbai kitchen, Sahijwala is elated to have embarked on a career at an age when her contemporaries are eyeing retirement.

Over the past year, she has seen her profit grow to $200 (Rs 15,000 approx) a month, but more importantly, she said, “My passion has finally found an outlet.

“I am just glad life has given me this chance.”

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News Network
February 19,2020

London, Feb 19: Indian universities had a good performance year within the emerging economies of the world as a record 11 made it to the top 100 Times Higher Education's (THE) Emerging Economies University Rankings 2020.

Only China has more universities than India in the top 100 at 30 from a total of 47 countries and territories included in the analysis released in London on Tuesday evening.

A total of 56 Indian universities appear in the full ranking of a total of 533 universities across emerging economies of the world.

The Indian Institute of Science (IISc), ranked 16th, is India’s top-ranked institution followed by the Indian Institute of Technologies (IITs).

"There has long been a debate about the success of Indian universities in world rankings, and for too long they have been seen as underperforming on the global stage," notes Phil Baty, Chief Knowledge Officer for the THE.

"The Emerging Economies University Rankings 2020 suggests that real progress is being made by a number of institutions in a number of metrics across our robust methodology, and could mark an exciting turning point for Indian higher education, enabled in part by the Institutes of Eminence scheme," he said.

The Indian government’s Institutes of Eminence scheme was established in 2017 and one of its participating universities, Amrita Vishwa Vidyapeetham, has entered the top 100 for the first time, moving up a huge 51 places from joint 141st in 2019.

The other universities included in the Institutes of Eminence scheme that appear in the top 100 mark the biggest improvers in the ranking with IIT Kharagpur moving up 23 places to 32nd, IIT Delhi improving by 28 places to joint 38th and IIT Madras climbing 12 places to joint 63rd.

The Institutes of Eminence scheme provides participating universities with government funding and greater autonomy with the aim of moving them into the top 100 of the world university rankings, including Times Higher Education’s World University Ranking, over time.

The expectation is that this will be achieved through a number of changes including an increase in foreign students and staff, offering online courses and encouraging academic collaboration with other top universities around the world.

This year marks only the second time that 11 Indian institutions have held top 100 positions since the ranking began in 2014, when much fewer universities took part in the ranking globally.

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January 28,2020

Mumbai, Jan 28: Flag carrier Air India has kept one of its 423-seater jumbo planes ready in Mumbai for the evacuation of Indian citizens from Wuhan in China in the wake of the coronavirus outbreak in that country, an official source said on Tuesday.

The airline is awaiting necessary approvals from the ministries of external affairs and health to operate the special flight, the source said. The health ministry's nod is required because the operating crew has to fly in a virus outbreak territory.

"We have kept a Boeing 747-400 ready in Mumbai to operate an evacuation flight to China whenever we get a go ahead from the government," the source said.

Some 250 Indians are to be evacuated.

At a meeting of top secretaries called by the cabinet secretary on Monday, the government decided to be prepared for possible evacuation of Indian nationals in Wuhan.

Accordingly, Ministry of External Affairs will make a request to the Chinese authorities for evacuation of Indian nationals, mostly students, stuck in Wuhan city. The Ministry of Civil Aviation and Ministry of Health will make arrangements for transport and quarantine facilities respectively, an official release said on Monday.

Wuhan along 12 other cities have been completely sealed by the Chinese authorities to stop the virus from spreading. The death toll climbed to 80 with 2,744 confirmed cases.

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