Exchange Data said that FIIs bought equities worth ₹2,208.23 crore on Tuesday (September 10, 2024). File
| Photo Credit: Reuters

Equity benchmark indices declined in early trade on Wednesday (September 11, 2024) after two days of gains amid selling in Tata Motors and weak trends in Asian markets.

The 30-share BSE Sensex fell 111.85 points to 81,809.44. The NSE Nifty dipped 39.2 points to 25,001.90.

Among the 30 Sensex firms, Tata Motors, ICICI Bank, Titan, HDFC Bank, JSW Steel, Tech Mahindra, UltraTech Cement and Axis Bank were the major laggards.

Asian Paints, Bharti Airtel, ITC and Hindustan Unilever were among the gainers.

In Asian markets, Seoul, Tokyo, Shanghai and Hong Kong were trading lower.

The U.S. markets ended mostly with gains on Tuesday (September 10, 2024).

Foreign Institutional Investors (FIIs) bought equities worth ₹2,208.23 crore on Tuesday (September 10, 2024), according to exchange data.

Global oil benchmark Brent crude climbed 0.59% to $69.60 a barrel.

The BSE benchmark climbed 361.75 points or 0.44% to settle at 81,921.29 on Tuesday (September 11, 2024). The NSE Nifty surged 104.70 points or 0.42% to 25,041.10.

Mumbai:

Researchers at the Indian Institute of Technology Bombay (IIT Bombay) have uncovered how animals find their way back home without getting lost or being late by using a robot that mimics their movements.

This robot is designed to move on its own, much like an animal finding food and then to use light as a guide to return home (homing), the IIT Bombay said in a statement on Tuesday.

In a new study, researchers from the department of physics have used this robot to study the underlying principles of homing by animals.

“The primary goal of our research group was to understand the physics of active and living systems. We achieve this by performing experiments on centimetres-sized self-propelled programmable robots. In simple words, we model these robots to mimic the dynamics of living organisms, both at the individual and collective levels,” Dr Nitin Kumar, an assistant professor at the department of physics, IIT Bombay, said.

For their study, the researchers wanted to determine the time it took for the robot to return home, with increasing amounts of deviations from its homing path.

It was observed that the reorientation rate, the frequency at which the robot (or an animal) should adjust its direction for successful homing, originated from the degree of randomness in its path.

The researchers discovered an ‘optimal reorientation rate’ for a particular value of randomness beyond which the adverse effects of increased randomness are negated by more frequent reorientations, ultimately ensuring successful homing.

This suggested animals might have evolved to reorient themselves at an optimal rate to efficiently find their way home, regardless of the noise or unpredictability in their environment.

“The observation of a finite upper limit on return times indicates that the homing motion is inherently efficient. Our results demonstrated that if animals are always aware of the direction of their home and always correct their course whenever they deviate from the intended direction, they will surely get home within a finite time,” Kumar added.

Apart from physical experiments, the researchers also ran computer simulations where the robot’s movement mimicked animals.

This virtual robot combines active Brownian motion (the random motion of particles in a liquid or gas, caused by collisions with fast-moving atoms or molecules in the fluid) with occasional resets to its orientation to correct its course back towards home.

These simulations matched the experimental results, reinforcing the idea that randomness and reorientation work hand-in-hand to optimise homing.

“When we applied this model to the trajectories of a real biological system of a flock of homing pigeons, it showed a good agreement with our theory, validating our hypothesis of enhanced efficiency due to frequent course corrections,” Mr Kumar said.

He said in real and more complex systems, the homing cues might be more complicated than a simple uniform gradient towards home, as modelled in this experiment.

“In our future research, we aim to model these scenarios in our experiment by using a combination of spatiotemporal variations in light intensity and physical obstacles,” the assistant professor added.

(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)

Jio’s arm Radisys and Tech Mahindra are working with Ghana’s Next-Gen Infrastructure Company (NGIC) to build the infrastructure needed to deliver affordable 5G mobile broadband services in the African country. Representational
| Photo Credit: KRISHNAN VV

Ghana has signed deals with a Reliance Jio subsidiary, Tech Mahindra, and other vendors to build 4G and 5G infrastructure as the African country aims to enhance its telecom capabilities.

Ghana’s state-backed Next-Gen Infrastructure Company (NGIC) has partnered with Jio’s arm Radisys, Tech Mahindra and Nokia to build the necessary infrastructure for delivering affordable 5G mobile broadband services.

India a ‘strategic choice’

Ursula Owusu-Ekuful, the West African country’s Minister for Communication and Digitalisation, told reporters in Mumbai that India was a “strategic choice” due to its similar demographics and Ghana wants to replicate the Indian story on telecom penetration.

“Your (India’s) demographics are just like us, the Jio model was rolled out just a few years ago, so the learnings are still fresh,” she added.

NGIC has been allocated 5G spectrum and local telcos will be utilising the shared infrastructure to roll out the services in the next six months. As per reports, the overall contract is over $200 million.

Ms. Owusu-Ekuful said Ghana is a part of the 33-nation Smart Africa alliance, and other countries in the continent will be closely watching the rollout to see whether they can also emulate the same locally.

When pointed out that Indian vendors have not executed such deals in the past and why Ghana chose them over the Chinese suppliers, she said, “It was a strategic choice for us. We don’t want to get caught up in any of the geopolitics that is currently going on. We want what is the best for our national interest.”

“Ghana wants to leverage India’s experience in the field,” she added.

Speaking on the deal, Radisys’ Chief Executive Arun Bhikshesvaran said, “Our communications platform and digital applications will help create new digital experiences that empower the Ghanaian community and foster sustainable and inclusive development.”

A statement said the lives of Ghanaians will be enhanced across various spheres including education, healthcare, and digital payments through the modern telecom network.

The Ghana’s minister said the country is looking at both the 4G and 5G networks, and also satellite connectivity to deepen its telecom penetration, and added that it is in talks with Elon Musk’s Starlink for the latter.

Jio’s rival in the local market Bharti Airtel is one of the most prominent mobile network operators in the African continent.