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Marine mammals such as dolphins, manatees, seals and whales, which evolved to make water their primary habitat, lost the ability to make a gene that defends humans and other land-dwelling mammals from the neurotoxic effects of a popular human-made pesticide, a new study has revealed.
The researchers found that the marine mammals lost the gene Paraoxonase 1 (PON1) that effectively defends humans and other terrestrial mammals from organophosphates — a group of man-made insecticides.
PON1 potentially reduces cellular damage caused by unstable oxygen atoms and also protects us from organophosphates that kills by disrupting neurological systems.
Whales and dolphins lost the gene PON1 soon after they split from their common ancestor with hippopotamuses 53 million years ago; manatees lost it after their split from their common ancestor with elephants 64 million years ago.
But some seals likely lost PON1 function more recently, at most 21 million years ago and possibly in very recent times.
“The big question is, why did they lose function at PON1 in the first place? It’s hard to tell whether it was no longer necessary or whether it was preventing them from adapting to a marine environment,” said lead author Wynn K. Meyer, postdoctoral associate at the University of Pittsburgh in the US.
“We know that ancient marine environments didn’t have organophosphate pesticides, so we think the loss might instead be related to PON1’s role in responding to the extreme oxidative stress generated by long periods of diving and rapid resurfacing,” Meyer added.
For the study, appearing in the journal Science, the team analysed DNA sequences from five species of marine mammals and 53 species of terrestrial mammals and reacted their blood samples with an organophosphate by-product.
The blood did not break down the organophosphate by-product the way it did in land mammals, indicating that unless a different biological mechanism is protecting the marine mammals, they would be susceptible to organophosphate poisoning — a form of poisoning that results from the build-up of chemical signals in the body, especially the brain.
The study calls for monitoring our waterways to learn more about the impact of pesticides and agricultural run-off on marine mammals.(IANS)
Special Powers For The Armed Forces Act Of 1958 is an act to allow personnel of the armed forces in the states of *[Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, and Tripura] to be granted certain special powers in troubled regions.
In protest, Nagaland has decided to put the Hornbill Festival on hold. Furthermore, the SIT investigating the event has been given a month to finish its inquiry.
The Nagaland administration has decided to petition the Home Ministry to abolish the Armed Forces (Special Powers) Act in the wake of the killing of 14 people by security forces (AFSPA). On Tuesday, the decision was made during a cabinet meeting presided by Chief Minister Neiphiu Rio.
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The Special Inquiry Team (SIT) that has been formed to investigate the event, would conclude its investigation within a month, according to the meeting. In response to the innocent fatalities, the government has decided to cancel the current Hornbill Festival. The venue's stalls will stay open, and the tourist bureau will stage a brief closing ceremony.
The 10-day Hornbill Festival, the state's major tourist event, was set to culminate on December 10 at Naga Heritage Village in Kisama, near the state capital. The day's event at the location had been cancelled by the state authorities on Monday.
Following the deaths in Mon district, several tribes from eastern Nagaland and other areas of the state halted all activity at their respective Morungs.
Security forces were in the middle of an ambush when the vehicle approached the location and tried to flee when signaled to stop by the forces. It being suspected of carrying insurgents, the security forces opened fire. Later on it came into light it was a case of mistaken identity and they were civilians who worked as coal mine workers and were coming home in a car. Out of the eight individuals in the vehicle, six died instantly. This sparked additional violence in the region, which resulted in the deaths of eight more individuals (seven on Saturday and one on Sunday) and one security personnel.
Union Home Minister Amit Shah expressed remorse to Parliament on Monday, saying that on December 4 evening, "a squad of 21 para-commandos of the Indian Army planned an ambush" for terrorists in Mon area, but that it "turned out to be a case of mistaken identification." "The Government of India offers its profound condolences to the families of those who have lost their lives," he continued.
The officer in-charge of the Tizit police station in Mon district filed a suo-motu FIR on Sunday alleging that the security forces' "intention" was "to murder and hurt people."
On December 4, the coal mine laborers who were from Oting village had been returning home from Tiru in a Bolero when, "on reaching Longkhao, between Upper Tiru and Oting villages, security forces blankly open fired at the vehicle without any provocation, resulting in the death of many Oting villagers and seriously injuring many others," according to a FIR filed by Ubi Posehu Kezo, the officer in charge of the Tizit police station.
According to the FIR, there was no police guide present at the time of the event, and security personnel did not "submit a demand to the police station to supply police guide for their operation." As a result, it is clear that the security forces' goal is to kill and hurt people."
The Army has expressed great remorse for the occurrence and has convened a Court of Inquiry into it.Unsplash
Also read: World-Famous Hornbill Festival From Nagaland
The Army has expressed great remorse for the occurrence and has convened a Court of Inquiry into it. "The reason for the tragic loss of lives is being probed at the highest level by a Court of Inquiry, and necessary action will be taken in accordance with the law," it stated.
Rio had joined a rising chorus of demands for the repeal of AFSPA, which provides security personnel exceptional powers in "disturbed regions," when attending the funeral of the 14 people in Mon town on Monday.
Meanwhile, the Konyak Union (KU), Nagaland's main tribal organisation, declared a day-long bandh in the Mon district on Tuesday to condemn the deaths, and a seven-day mourning period began the next day.
The KU has advised security troops to refrain from patrolling the Konyak region during the seven-day mourning period, warning that if they do not, they would be held accountable for "any unpleasant occurrence that may occur."
In a letter sent on Monday, the union asked President Ramnath Kovind to form a Special Investigation Team (SIT) "also comprising two members of the Eastern Nagaland People's Organisation (ENPO) in it" to identify the Army personnel involved in the incident and make public the actions taken against them within 30 days.
It asked that the 27 Assam Rifles leave Mon immediately for failing to safeguard residents, as well as the removal of the Armed Forces (Special Powers) Act from the whole Northeast.
"On Tuesday, we declared a day-long bandh in Mon district. It is proceeding in a calm manner. We've also declared a seven-day mourning period beginning on Wednesday," Howing Konyak, head of the Konyak Union, told PTI.
(Keywords: Hornbill festival, Nagaland, AFSPA)
Samsung Electronics on Tuesday replaced all three CEOs in a surprise move that, the company said, was intended to enhance competitiveness and promote future growth.
Han Jong-hee was promoted to vice chairman and CEO and will be in charge of the newly created SET division, which merged the consumer electronics and IT and mobile communications divisions, previously led by Kim Hyun-suk and Koh Dong-jin, respectively.
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An expert in TV research and development, Han played a key role in bringing the company's TV business to the top position. Samsung said he is expected to "strengthen the synergies among the different businesses in the SET division and help drive new businesses and technologies." The device solutions (DS) division will be led by Kyung Kye-hyun, who has been Samsung Electro-Mechanics CEO.
Kyung is a semiconductor design expert, having previously led the company's flash product and technology team. Samsung said he is expected to "help maintain the company's semiconductor leadership and lead innovation in the components business."
Also Read : Samsung W22 5G was scheduled to Launch on Oct 13
Kim Ki-nam, vice chairman and head of the DS division, was named chairman of Samsung Advanced Institute of Technology, reports Yonhap news agency.
The tech giant said in a statement the new appointments were made "for the next phase of the company's future growth and to strengthen its business competitiveness."
The reshuffle came as a surprise as it had been widely expected that the tech giant would keep its current division heads to ensure a stable management environment amid fierce global competition and potential risks associated with the ongoing trial of Samsung Electronics Vice Chairman Lee Jae-yong over his role in controversial merger and accounting fraud allegations.
Lee did not get promoted to chairman of Samsung Electronics -- the crown jewel of Samsung Group. Unsplash
The three CEOs had been considered successful in leading the company to post stellar performances since 2018 and were endorsed to keep their posts during the annual shareholders meeting in Suwon, south of Seoul, in March.
But Lee, the de facto leader of the country's biggest conglomerate, Samsung Group, has hinted at making a sizable change to the company to "create a better Samsung." He also warned of the "harsh reality of the market" amid the global supply crunch and chip shortages.
The management reshuffle came a week after the company overhauled its position system and abolished the seniority-based top-down approach to nurture young talent and create a more flexible corporate culture. It scrapped mandatory years of working at certain positions, a precondition for possible promotion, and incorporated ranks to make the company structure more simplified and nimble.
Lee did not get promoted to chairman of Samsung Electronics -- the crown jewel of Samsung Group. He assumed the vice chairman position in December 2012. The chairman position has been left vacant since his father, Lee Kun-hee, died in October last year. (IANS/SP)
(Keywords : Samsung, company, competitiveness, growth, technology, reshuffle, successful, chairman.)
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India's Prime Minister Narendra Modi and Russia's President Vladimir Putin met in New Delhi on Monday and discussed regional and global developments, including the post-pandemic global economic recovery, and the situation in Afghanistan.
Accompanied by a high-level delegation, Putin visited New Delhi for the 21st India-Russia annual summit. He extended an invitation to Modi to visit Russia for the 22nd India-Russia Annual Summit in 2022.
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The two leaders expressed satisfaction at the sustained progress in the 'Special and Privileged Strategic Partnership' between both countries despite the challenges posed by the Covid pandemic. They welcomed the holding of the first meeting of the 2+2 Dialogue of Foreign and Defence Ministers and the meeting of the Inter-Governmental Commission on Military and Military-Technical Cooperation in New Delhi.
Also Read : Journalism in Putin's Russia
The leaders underscored the need for greater economic cooperation and in this context, emphasised on new drivers of growth for long-term, predictable, and sustained economic cooperation. They appreciated the success story of mutual investments and looked forward to greater investments in each others' countries.
The role of connectivity through the International North-South Transport Corridor (INSTC) and the proposed Chennai-Vladivostok Eastern Maritime Corridor figured in the discussions. The two leaders looked forward to greater inter-regional cooperation between various regions of Russia, in particular with the Russian Far East, with India's states.
Putin congratulated Modi for India's ongoing non-permanent membership of the UN Security Council. | Wikimedia
They appreciated the ongoing bilateral cooperation in the fight against the Covid pandemic, including humanitarian assistance extended by both countries to each other in critical times of need.
The leaders discussed regional and global developments, including the post-pandemic global economic recovery, and the situation in Afghanistan. They agreed that both countries share common perspectives and concerns on Afghanistan and appreciated the bilateral roadmap charted out at the NSA level for consultation and cooperation on Afghanistan.
They noted that both sides shared common positions on many international issues and agreed to further strengthen cooperation at multilateral fora, including at the UN Security Council.
Putin congratulated Modi for India's ongoing non-permanent membership of the UN Security Council and the successful Presidency of BRICS in 2021, while Prime Minister Modi congratulated Russia for its ongoing chairmanship of the Arctic Council.
In a joint statement, the two sides stressed that partnership for peace, progress and prosperity aptly covers the state and prospects of bilateral ties.
Coinciding with the visit, several government-to-government agreements and MoUs, as well as those between commercial and other organisations of both countries, were signed in different sectors such as trade, energy, science and technology, intellectual property, outer space, geological exploration, cultural exchange, education, and others.
This is a reflection of the multifaceted nature of our bilateral partnership, the statement said. (IANS/SP)
(Keywords : India, Russia, Vladimir Putin, Narendra Modi, Prime Minister, President, New Delhi, regional, global, developments, Afghanistan, challenges, pandemic, defence, economic, cooperation, connectivity, humanitarian, partnership, trade, education.)