Thursday, July 25, 2024

The New Age with Brain Implants

 

The New Age with Brain Implants

In the past decades, many manmade objects have been successfully implanted in the human body. These objects stay inside our bodies and help in the normal functioning of our systems. Some examples are metal ortho implants, valves, stents and pacemakers in the hearts.

In the recent decades, scientists are undertaking research for brain implants – these implants are intended for controlling various functions of the body by transmission of neuro signals from the brain to different parts of the body. Now the question arises, do you think “brain implants” will be possible someday? The answer is yes, it has been successfully implanted this year !

Neural implants

Scientists has been working to develop Neural implants (brain implants) with a set of electronic wires that are attached to specific region of the brain to produce or receive electronic impulse or signals and transmitted to a control unit. A micro-computer then amplifies the signal and sends the signals by wireless means to external AI (Artificial Intelligence) processor device called the Brain – Computer Interface (BCI). This technology is will be effective for diseases like paralysis, epilepsy, Parkinson’s disease and lock-in syndrome.

Nuralink – A BCI Company

Many companies were racing to develop the BCI technology for human beings for a long time. In 2016, Elon Musk, a visionary entrepreneur, founded a company named Nuralink, and hired more than 400 expert scientists to work on BCI technology. In May 2023, Nuralink got the approval for first time from Food and Drug Administration (FDA) of USA to conduct human trial of BCI device developed by Neuralink – after successful trial on monkeys.

Finally on Jan 29, 2024, Elon Musk announced that the first human implant has been successfully implanted and the patient is recovering – gaining a worldwide attention and spotlight. And people around the world were anxiously waiting for the news on the person who received the first Nuralink BCI implant. And finally on 21 March, 2024, it was announced that Mr. Noland Arbaugh, aged 29, who was paralyzed from neck down, due to an accident 8 years ago, received the first Nuralink BCI implant and he was shown to control a computer mouse only by using his brain, without any hand movement ! This was a very welcome news all over the world. 

Arbaugh said there are still many improvements needed, but it was a life changing experience for him that he could use a smart phone and a computer only with is mind.

Neuralink said that the BCI chip interprets the neural activity and controls a smart phone by the person’s thought only, without any hand movement. 

The BCI chip consists of very delicate 1000 smaller-than-hair electrodes to be inserted at certain areas of the cerebral cortex of the brain – The surgery was extremely delicate for human surgeons to conduct – so surgery was being done by a robot and it took 6 hours of the robot to implant the Neuralink BCI chip.

Conclusion

Even though, it’s a bit early see the wide public use of BCI in patients, it will not be too long when the deaf will be able to hear, the blind will be able to see, the paralyzed will be able to move, and the thoughts that origin in the human brain can be translated into text and can function smart devices, for which the world is anxiously waiting.

 

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Shuvanjali Manandhar

Class 8

St. Mary’s High School, Jawalakhel, Lalitpur

Saturday, July 13, 2024

Maitidevi Temple : A Hindu Temple in Kathmandu

 

Community Research Work

 

Maitidevi Temple : A Hindu Temple in Kathmandu

Introduction

Nepal is county of diverse ethnicity, language and religion. Among many different religions, Hindu religion is in its majority. In Nepal there are numerous temples and small shrines. These temples and shrines play an important role in the culture and religion of the citizens of the country. One popular temple in central Kathmandu is the Maitidevi temple – which is also known popularly as the Pancha Kumari temple. This is one of the “Shakti-peeth” meaning temple of goddess durga having divine power. This temple is situated in the heart of Kathmandu, near Gyaneshwore, in Ward No. 30 of Kathmandu Metropolitan City and on the side of the main road between Gyaneshwore and Maitidevi chowk.

Structure of the Temple

The Maitidevi temple is believed to be re-built to its present state during the reign of Rana Prime Minister Chandra Shumsher Rana in the 20th century.

This temple is a one storied temple with pagoda-style roof. The temple is square in shape with one side is approximately 7m. The roof of the temple is brass metal roof, supported by 20 several wooden tudals. Each tudal has a different god or goddess carved into it.  In pagoda-styled temples, tudals are one the main components that bear different carvings. Over time these tudals get worn out and needs polishing. 

A noticeable feature of the temple is brass metal roof.  The four corners of the roof has a sculptured brass bird with its open wings. The eves of the roof has metal plates, all around the four sides, which bear the carved writing in devanagari script, about the who and when the temple was built and renovated. Like other temples, this temple also had a long, bright red coloured frills, hanging from the roof’s eves, and also bears a series of small wind-bells, that enhance the beauty and environment of the temple area.

One of the main character of every Nepali temple is the Gajur, also known as the pinnacle – the top center-most structure on the roof. The pinnacle is made from pure golden brass metal. The gajur is elongated dome-shaped and may be additional smaller gajurs next to the main gajur.  The pinnacle is covered by a small metal umbrella-like structure called chatari, and some small religious flags are also kept.

Guarding animal sculptures is another attractive feature of hindu temples. In Maitidevi temple also, sculptures of lions guarding the temple can be seen. There are two stone lions are in front of the main entrance. Two pairs of brass metal lions are also in front of the two side entrances. Additionally there are four brass metal lions, standing on stone pedestals at four corners of the temple, with its mouths open and raising its paws, are very attractive sculptures. Worshippers are seen touching the lion’s paws in an action of receiving power from the lions. Altogether there are 13 metal lion sculptures and two stone lion sculptures.

Bells are another important feature of the hindu temples. At Maitidevi temple, on either sides the front entrance, there are two main bells hung from stone stands. There are smaller bells in front of the side entrances also. In total there are 9 bells.

In front of the main entrance, there is metal sculpture of lord Vishnu lying on the ground, which is very unique. Opposite to the main entrance, there are three stone pillars, with a metal lion’s sculpture on the first pillar, a metal peacock sculpture on the middle pillar and a smaller lion’s sculpture on the third pillar. There is a metal bell besides the three pillars.

In this temple, there is one main entrance and two side entrances. The door frames are covered with brass metal sheets which have many artistically carved images of deities. The entrance doors of the temple always have a triangular wooden or metal carvings called tympanums. The carving are very artistic with details of different deities and guarding animals and designs. These metal tympanums are above each two side entrances also. In front of the main entrance, there are two metal flag poles with brass metal flags shaped in Nepali flag style. From the gajur, there is a long metal belt that hangs up to the entrance – they are known as pataka. On this temple, there are 4 different patakas – which are known to be donated by certain families or clans, at different periods.

Inside of the Temple

As we enter the temple from the main entrance, we can see the main place where the goddess is enshrined. Only a small stone deity only about 7 inches tall and is heavily decorated with various silver ornaments, is seen at the center which is believed to be the goddess durga, and no sculptured idol of durga can be seen. The stone idol is decorated by many silver decorative and protective sculptures – the main one is the silver sculpture of 9 goddess, situated above the main stone idol. There are also two sets of nags – or 9 snakes that protect the goddess. In addition, there are two small idols of protecting lions, two metal flag poles, trishul poles, many small bells and diya stands. Inside the temple, besides the main goddess, there are lined other 9 gods and goddesses, namely, small statues of Ganesh, Manakamana goddess and Bagulamikhi. These idols were also decorated with different brass ornaments. The place is also decorated with red frill cloths. Inside the temple, on the center ground we can see a silver circular mandap, of diameter 25 inches, where materials of worship and offerings are kept, prior to making the offering to the goddess.

Outside of the Temple

Outside the temple, in front of the temple’s main entrance’s right corner, there are one very old and large pipal tree, whose trunk circumference is approximately 10m and is considered very holy. People worship the tree as a symbol of lord Bishnu. This pipal tree is about a hundred years old and gives a harmonious green environment.

On the road-side courtyard of the temple, there are four small Buddhist stone stupas – exhibiting harmonious co-existence of both Buddhist and Hindu culture. At the back side of the temple, there is a small pagoda-style roofed pati used as Bhanjan-ghar. Also recently constructed is another pagoda-style roofed pati for people to take a rest. There is a small pond within the premises of the temple known as mayur-kunda or peacock pond, but at present it is dismantled and will be renovated soon.

In the surrounding courtyard of the temple, there are small shrines established by different people, that enshrine many gods and goddess, such as Shiva-Parbati, Bishnu, Radha-Krishna, Ganesh, Sharswoti. Also there are stone shila-patras or stone tables where the details of the deeds undertaken with dates and names are carved.

Worshipping in the Temple

According to the temple’s main pujari – Mr. Raj Bhai Bajracharya, every morning there about 300 devotees that visit the temple for worshipping and on special days such as each Saturdays, Ekadashi, Purnina, Aunsi, Teej, and other holy religious day, the numbers of devotees are more than double. The temple is most visited by devotees on the main three days during Dashain and also Tihar.

Conclusion

In Nepal there are many such temples that hold strong cultural meanings and beliefs for the hindu people. As a citizen, we should be able to preserve these cultures as they are our country’s wealth. Presently there is a lot of consciousness among citizens that we should preserve our holy places and cultures for many coming generations.

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Shuvanjali Manandhar

Class 8 B

St. Mary’s High School, Jawalakhel, Lalitpur