About Arun Kumar N

Arun has been associated with India International Times since 2018 and he has been a key reporter in covering science and space related stories. He can be reached at arunKnn@indiainternationaltimes.com.

Want to shift a group’s opinion? Encourage opponents to sit on the fence

Efforts to change strongly held opinions often hit a wall. Push too hard, and people tend to dig in further, making consensus even harder to achieve. But a new study suggests a counterintuitive approach: instead of trying to convert opponents, it may be more effective to encourage them to step back and remain neutral.

Researchers at the University of Bath, led by mathematician Professor Kit Yates, have found that creating space for neutrality — such as allowing people to abstain rather than choose sides — can make groups more flexible and open to change. Their findings, published in Advanced Science, point to a quieter but more effective path to shifting group opinion.

The idea is simple. When individuals are not forced into binary positions, they gain room to reassess their views. This “breathing space,” as the researchers describe it, can make it easier for a group to gradually move toward consensus or adapt when circumstances change.

Yates argues that neutrality should not be seen as indecision or weakness, but as a useful feature of how groups function. According to the study, once neutrality is allowed, even basic one-on-one interactions — where one person influences another — can lead to meaningful shifts in collective opinion without the need for complex social dynamics.

To understand this, the researchers built a mathematical model of group decision-making. It revealed two distinct pathways to consensus. The first is familiar: persuading undecided individuals to pick a side. The second, less explored route involves “de-escalation,” where disagreement pushes individuals into a neutral position before they later adopt a stance independently.

This second pathway turned out to be particularly powerful. When more people move into a neutral state, the number of active decision-makers shrinks. As a result, small influences or random shifts carry more weight, allowing a new consensus to emerge more quickly.

The team tested this theory beyond models, looking at both animal behaviour and human decision-making.

In swarms of locusts, they observed that when the group changes direction, it first goes through a brief pause. Many locusts stop moving altogether, effectively becoming neutral. During this moment, only a small number remain active, and their movements disproportionately shape the swarm’s new direction. This temporary pause amplifies small changes, helping the group realign بسرعة.

Human experiments showed a similar pattern. In voting-based games, groups that were given the option to abstain shifted their decisions more smoothly and quickly than those forced to choose between fixed options.

The implications extend well beyond the lab. From corporate boardrooms to online debates, the findings suggest that reducing intensity — rather than escalating persuasion — may be key to breaking deadlocks. Encouraging strongly opposed individuals to adopt a neutral stance, even temporarily, could help groups reset and move forward.

Co-author Professor Tim Rogers notes that while fence-sitting is often seen as frustrating, it may actually play a constructive role. By easing tension and reducing polarisation, neutrality can create the conditions needed for more responsive and adaptive decision-making.

In a world increasingly defined by sharp divisions, the study offers a subtle but important insight: sometimes, the fastest way to change minds is not to push harder, but to allow people the space to pause.

NASA’s Artemis II Rocket Reaches Launch Pad 39B, Final Countdown Begins

Cape Canaveral, March 22, 2026: NASA’s Artemis II mission has reached a critical milestone, with the Space Launch System (SLS) rocket and Orion spacecraft now standing at Launch Pad 39B at the agency’s Kennedy Space Center in Florida, setting the stage for the first crewed lunar mission in more than five decades.

The towering 322-foot-tall Moon rocket arrived at the pad at 11:21 a.m. EDT on Friday, March 20, completing an 11-hour journey from the Vehicle Assembly Building. The slow and steady trek began at 12:20 a.m. EDT, as NASA’s crawler-transporter 2 carried the integrated SLS and Orion, secured atop the mobile launcher, along the 4-mile path at a maximum speed of just 0.82 mph.

With the rocket now in place at Pad 39B, the historic launch site of Apollo missions and numerous space shuttle flights, NASA teams are entering the final phase of prelaunch preparations. The mission is targeting liftoff as soon as Wednesday, April 1, with the early April launch window extending through Monday, April 6.

Artemis II will mark the first crewed test flight of the SLS rocket and Orion spacecraft, carrying a four-member astronaut team on a 10-day journey around the Moon and back. The crew includes NASA astronauts Reid Wiseman as Commander, Victor Glover as Pilot, and Christina Koch as Mission Specialist, alongside Canadian Space Agency (CSA) astronaut Jeremy Hansen as Mission Specialist.

The mission represents a pivotal step in what NASA describes as a “Golden Age of innovation and exploration.” Artemis II will pave the way for subsequent U.S.-crewed missions to the lunar surface, with the goal of establishing a sustained presence on the Moon that will ultimately enable the agency to prepare for human exploration of Mars.

As the world watches, the final countdown has begun for humanity’s return to deep space.

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ECI Mandates Enhanced Voter Facilities Ahead of Assembly Polls in Five States

With the General Election to the Legislative Assemblies of Assam, Kerala, Puducherry, Tamil Nadu, and West Bengal, along with bye-elections in six states, scheduled to begin following the announcement on March 15, 2026, the Election Commission of India (ECI) has issued firm directives to ensure a seamless and voter-friendly experience across all polling stations.

The Commission has instructed Chief Electoral Officers (CEOs) of all states and union territories to guarantee that each of the 2,18,807 polling stations is equipped with Assured Minimum Facilities (AMFs) and robust voter assistance mechanisms on poll day.

As part of the AMF framework, every polling station will be provided with drinking water, a waiting area with shade, a toilet with water facility, adequate lighting, a ramp with proper gradient for Persons with Disabilities (PwD) electors, a standard voting compartment, and clear signage. In a move to enhance comfort, CEOs have also been directed to place benches at regular intervals along queues, allowing electors to sit while awaiting their turn to vote.

To strengthen voter awareness, four uniform and standardized Voter Facilitation Posters (VFPs) will be prominently displayed at all polling stations. These posters will contain key information, including polling station details, the list of candidates, do’s and don’ts, approved identification documents, and the voting process.

Additionally, Voter Assistance Booths (VABs) will be established at every polling station location. Staffed by Booth Level Officers (BLOs) and officials, these booths will assist electors in locating their polling booth number and serial number in the electoral roll. The VABs will feature prominent signage to ensure easy visibility as voters approach the premises.

In one of several initiatives aimed at voter convenience, a mobile phone deposit facility will be provided outside the entrance of each polling station. Voters can hand over their switched-off phones to a designated volunteer before entering, and collect them after casting their vote.

The Election Commission has reiterated that the provisioning of AMF and related accessibility measures is mandatory, and strict compliance will be monitored across all polling stations. All field functionaries have been directed to complete necessary works well in advance of poll dates to ensure a seamless and pleasant voting experience for every elector.

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Aquatic plant reduces antibiotics in water and genetic damage in fish, but risks remain

A new study from researchers at the University of São Paulo has shed light on a growing environmental concern: the presence of antibiotic residues in freshwater systems, and their impact on aquatic life and potentially human health.

The research, conducted in Brazil’s Piracicaba River basin, found traces of multiple commonly used antibiotics in water, sediments, and fish. Scientists also explored whether a floating aquatic plant, Salvinia auriculata, could help reduce this contamination. The findings suggest it can—but not without complications.

Pollution Builds Up in Dry Seasons

The team, led by Patrícia Alexandre Evangelista, monitored samples from a region near the Santa Maria da Serra dam, where pollutants from across the river basin tend to accumulate. The area receives runoff from urban sewage, agriculture, aquaculture, and livestock farming.

Twelve antibiotics, including tetracyclines, fluoroquinolones, sulfonamides, and phenols, were tracked across both rainy and dry seasons. A clear pattern emerged: during the rainy season, most antibiotics were barely detectable, likely diluted by higher water volumes. In the dry season, however, concentrations rose significantly as water levels dropped and pollutants became more concentrated.

Sediments, rich in organic matter and minerals, acted as reservoirs for these compounds, storing them and potentially releasing them back into the environment over time.

Contaminated Fish Raise Health Concerns

One of the study’s most striking findings was the detection of chloramphenicol, a banned veterinary antibiotic, in lambari fish collected from local fishermen. The substance appeared only during the dry season, but at levels significant enough to raise concern.

Because this species is widely consumed in the region, researchers flagged a possible route of human exposure through food.

A Plant-Based Solution, With Limits

The study also tested whether Salvinia auriculata, a fast-growing floating plant often considered a nuisance, could help remove antibiotics from contaminated water.

In controlled experiments, the plant proved highly effective at absorbing enrofloxacin, eliminating more than 95% of it within days under certain conditions. Its performance was less impressive with chloramphenicol, removing only 30% to 45%, and over a longer period.

The antibiotics were found to accumulate mainly in the plant’s roots, suggesting that filtration and absorption at the root level play a key role.

A Complex Ecological Trade-Off

However, the picture is not straightforward. Even when the plant reduced antibiotic levels in the water, fish did not always benefit. In some cases, absorption rates in fish actually increased, possibly because the plant altered the chemical form of the antibiotics, making them easier for organisms to absorb.

Chloramphenicol, in particular, showed a strong tendency to persist in fish tissue, with a half-life exceeding 90 days. Enrofloxacin, by contrast, was eliminated more quickly and showed lower accumulation.

The study also examined genetic damage in fish. Chloramphenicol exposure led to increased DNA damage, but this effect was reduced when the plant was present, suggesting a possible protective role. No similar benefit was observed for enrofloxacin.

Not a Silver Bullet

Researchers caution against viewing Salvinia auriculata as a simple fix. While it can reduce antibiotic levels, it may also change how these substances behave in the ecosystem. There are additional concerns about how to safely dispose of contaminated plant biomass, which could otherwise reintroduce pollutants.

Still, the findings point to the potential of low-cost, nature-based solutions in regions where advanced water treatment technologies are not feasible.

Bigger Picture: A Growing Environmental Threat

The presence of antibiotics in rivers is more than just a local issue. It contributes to the broader global challenge of antimicrobial resistance, raising the risk of so-called “superbugs” emerging in natural environments.

As co-author Valdemar Luiz Tornisielo noted, the study underscores both the scale of human impact on ecosystems and the need for integrated solutions that consider not just pollutant removal, but long-term ecological effects.

In essence, the research reveals a problem that is measurable and widespread—and solutions that are promising, but far from simple.

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Python Blood is finding itself into a new way of making safer weight loss treatments

According to scientists at the University of Colorado Boulder, the next generation of weight-loss therapies may be shaped with the help of an unexpected source namely the python blood.

Researchers did name a compound found in pythons, which was published in Nature Metabolism on March 19, that seems to naturally inhibit appetite but maintain the muscle and general metabolic well-being. The discovery may open the path to some weight-loss medications that do not have some of the side effects experienced with the existing drugs.

The study, which was carried out in partnership with the researchers at Stanford and Baylor universities, focuses on the way in which the pythons cope with the extreme feeding patterns. These snakes are able to eat enormous meals and then spend months and even longer without eating it without ill-effect on their organs and even muscle tissue.

The senior author of the research, Leslie Leinwand, remarked that the work was a feeling of learning through the extreme of nature: the scientific perspective. Animals such as pythons, according to her, are capable of doing biological things that mammals cannot, and this provides hints on medical innovation.

Pythons are also characterized by great metabolic plasticity. Once they have eaten, their bodies change dramatically: the size of their heart may grow by approximately 25 percent and their metabolism may kick into overdrive to digest food effectively.

In a bid to determine the cause of these changes, scientists examined blood samples of ball pythons and Burmese pythons after feeding cycles. They discovered over 200 metabolites that were highly increased after a meal.

A single compound, para-tyramine-O-sulfate (pTOS) was outstanding. Its levels increased in almost 1000 times following feeding.

Subsequent experiments, which were implemented along with Baylor researchers revealed that, when pTOS was given to mice, it worked on the appetite-controlling centre in the brain- the hypothalamus, resulting in weight loss. Notably, this has been achieved without inciting gastrointestinal distress, muscle wastage or energy deficiency.

Gut bacteria in snakes synthesize the compound which is not inherent to mice. It is found in humans at low concentrations, especially after meals, but has remained largely undetected, since most metabolic research is done on rodents.

The results are published when the use of drugs affecting the GLP-1 hormone like Ozempic and Wegovy is popular in weight loss management, but may cause side effects and may be quit in the first year.

According to Leinwand, the new discovered compound might be another course. She indicated that even the available GLP-1 medicines were nature-inspired, namely, a hormone present in Gila monster venom.

Based on the finding, the research group has started a start-up, Arkana Therapeutics, to examine how python-related metabolic compounds may be converted into medication.

In addition to the loss of weight, the scientists are also exploring wider applications. Sarcopenia or age-related muscle loss is a significant unresolved medical issue and no current effective treatments exist. The fact that the python can maintain muscle mass, even with many days of starvation, could be of considerable importance.

The researchers intend to explore more into the pTOS mechanism in human beings and examine other metabolites that were found in the study some of which rose by up to 500 to 800 percent following a meal.

The present findings, he said, are but the tip of the iceberg as there is much more to discover about nature-inspired metabolic therapies.

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Is your brain aging faster than you are? What holds the key

Accurate research indicates that the solution to that question of whether or not your brain is aging faster or slower may be in something as mundane as your sleep.

Scientists in the University of California, San Francisco and Beth Israel Deaconess Medical Center, Boston, have discovered that subtle changes in how the brain puts up during sleep may be used to establish the risk of getting dementia many years before it occurs.

The study published on March 19 on JAMA Network Open applies machine learning to analyse brain waves captured by EEG on individuals at sleep. The findings indicate that there is an alarming pattern: the older a person is, based on such clues, the more prone to dementia.

Based on the findings every interval between 10 years during which the brain ages at a pace exceeding that of the body raises the chances of dementia by close to 40 percent. Conversely, people whose brain age is less than their real age are less likely to be in danger.

The study is based on the data of approximately 7,000 participants of the age between 40 and 94, none of whom had dementia in the beginning. They were followed up between 3.1/2 and seventeen years and in this time, about one thousand individuals contracted the condition.

Instead of using more traditional measures of sleep, including the overall duration of sleep or the duration of various sleep states, the researchers concentrated on more granular characteristics of brain-wave activity. Overall, the model analysed 13 micro-level features of EEG signals.

The authors claim that this method gives a more insight into the health of the brain. Conventional measures of sleep have never demonstrated significant relationships with dementia risks presumably due to the fact that they lack the complexity of the way the brain operates in sleep.

Yue Leng, the senior author, has indicated that sleep is a process that is extremely multidimensional in nature and broad indicators can fail to pick vital warning signs.

What the Brain Waves Reveal

Some of the brain-wave patterns that are associated with brain age are already known to play major roles in the cognitive process.

The slow rolling waves observed in the deep sleep (Delta waves) are linked to recovery and restoration. The spindles of sleep which are short periods of heightened activity are assumed to aid memory consolidation.

Sleep/en.wikipedia.org

Among other discoveries was the contribution of sharp spikes in brain activity which is referred to as kurtosis. These have been associated with reduced susceptibility to dementia and it can be concluded that some types of neural variability during sleep can be protective.

Notably, the correlation between an older age of the brain and dementia remained constant despite the broad-based consideration of other factors such as education, smoking status, body weight, physical activity, and the presence of other predisposing health conditions as well as genetic risk.

Toward Earlier Detection

Since EEG-based sleep monitoring is non-invasive researchers indicate that someday the results of the study can be applied to practical applications to screen early in life – possibly even outside the clinical environment using wearable devices.

The concept is simple sleep may provide a quantifiable, real-time measurement of brain aging.

An implication of the study is the broader implication, as well, which is that the enhancement of the sleep health can impact the aging of the brain. Past studies have revealed that therapeutic intervention of sleep disorders can have significant effects on the pattern of brain-wave.

Researchers, however, warn that this should not be seen as a problem-solving way. Change in lifestyle such as healthy weight and physical exercise especially in preventing a condition like sleep apnea may assist but there is no specific one-fit-all-purpose intervention that can reverse brain aging.

According to one of the authors of the study, there is no magic pill to the health of the brain yet, well, in any case.

 

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Stay Fit While You Fly: Ayush ministry launches Smart yoga regime to Air Travellers

Everything appears to get slower at 35,000 feet above ground, though the body does, as well. Even the most experienced traveller can get a sore back, tired and mentally exhausted because of hours in a tight seat. To combat such a contemporary issue of traveling, a very uncomplicated yet effective remedy is flying: Yoga for Air Travel – the 5-minute on-flight wellness system made with the intent of being very easy to follow.

An innovative project launched at Yoga Mahotsav 2026 by Shri Prataprao Jadhav, Hon. Union Minister of State (Independent Charge), Ayush This is an innovative project where the timeless yoga can be practiced in the octant and convert your seat into a rejuvenation zone. The protocol was designed by the Morarji Desai National Institute of Yoga to suit the needs of the modern frequent fliers – giving a fast, safe and efficient method to refresh oneself in the air.

Emphasizing the idea behind the project, Hon’ble Union Minister of State (Independent Charge) of Ayush Shri Prataprao Jadhav, stated that yoga has an immense preventive health and well-being power. This in-flight yoga guideline is an indication of our desire to ensure that yoga is available in all environments including those at the 35,000 feet location so that people can remain active, relaxed, and balanced when people are on the move.

Why In-Flight Yoga Matters

Long-haul travel especially by air can cause a lot of immobility. This may cause muscle stiffness, lack of circulation, fatigue, jet lag and in some instances, more severe issues such as deep vein thrombosis (DVT). The necessity to have a basic wellness intervention is clear in a combination with travel stress and change of cabin pressure.

The 5-minute Yoga protocol will help with these challenges with the help of gentle movements, mindful breathing and short meditation, and will help to restore the balance in the body and mind.

Insisting on the scientific and preventive touch, Vaidya Rajesh Kotecha, the Secretary, the Ministry of Ayush, stressed that the practice of yoga in everyday life, even in rather limited conditions such as flights, may play an enormous role in enhancing circulation, alleviating stress, and maintaining the well-being. This is because such practical interventions simplify preventive healthcare and make it accessible.

Eating and Exercising at Your Desk

The protocol is easy and accessible and does not need any special equipment or can be conducted when one is seated. It is a smooth combination of physical mobility and breath awareness and mental relaxation:

Centring (15 seconds): Start with a silent awareness or intent to get yourself grounded.
Light Joint movements (45 seconds): rotations of shoulders, stretching of ankle, and any simple movements to enhance blood flow and lessen stiffness.
Seated Yoga Poses: Altered poses include Tadasana (Palm Tree Pose), seated Cat-Cow, spinal rotations, and mild movements involving the legs in order to relieve tension and posture.
Pranayama (Breathing Practices): Deep breathing, Anulom Vilom, Bhramari, and Sheetali to relax the nervous system and improve the flow of oxygen.
Meditation (30 seconds): A short break to re-focus the mind and help bring about relaxation.
Enhancing the greater picture of changing behaviour, Ms Monalisa Dash, Joint Secretary, Ministry of Ayush, stressed, “The initiative shows how yoga may be effectively applied in day-to-day circumstances. We want to establish a culture of wellness, which will accompany a person wherever he or she may go by encouraging so easy habit.

Small Practice, Big Impact

Within five minutes, this routine can:

Improve blood circulation
Decrease muscle stiffness and fatigue.
Ease stress and anxiety
Help in digestion and hydration awareness.
Help manage jet lag
Most importantly, it enables travellers to be in-charge of their well-being- even in-flight.

Wellness, Anywhere You Go

Yoga is beautiful because of its flexibility. It finds you at home, in the office, or at the altitude of the clouds. This in-flight procedure is an instructional notice that wellness does not need additional time or area–only purpose.

The next time you buckle in your seatbelt, take a moment to pay attention to yourself. It is better to stop and rest to reconnect with oneself sometimes, the best way to travel far.

Fly well. Breathe easy. Stay balanced.

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ECI mandates all political Parties to get pre-certification of all political advertisements on electronic media

The Election Commission of India (ECI) has declared the program of the General Election to Legislative Assemblies in Assam, Kerala, Puducherry, Tamil Nadu and West Bengal and bye-elections in 6 states recently where in the rules have been spelt out for the political parties and independent contestants.

ECI has made a requirement of all registered political party and any group of organization/ association or any contesting candidate/individual seeking to be pre-certified by the Media Certification and Monitoring Committee (MCMC) on all political advertisements in the electronic media (e.g. TV, Radio, AV displays at public places, e-papers, bulk SMS/ voice messages) and social media.

Any individual or competing candidates may seek advertisement certification at District MCMC. A certification of such advertisements can be sought by all registered political parties with their respective head offices located in a State/UT by the State Level MCMC. The applications have to be submitted in accordance with the given timelines. The State level too constitutes an Appellate Committee headed by the CEO to listen to the appeals against the decision of District/State MCMC.

Without the prior certification of the MCMC, political parties/ candidates must not release any political adverts on internet based media/ websites such as social media websites.

MCMCs will also maintain a high alert on possible incidents of paid news in the media and act accordingly.

Moreover, the candidates must provide the information regarding their original social media profiles in their affidavit during nomination.

Section 77(1) of Representation of the People Act, 1951 and the guidelines of the Hon’ble Supreme Court of India states that political parties are also required to present a statement of expenditure incurred on campaigning using internet including social media websites to the ECI within 75 days after completion of assembly elections.

This spending among other things shall involve payment to internet companies and websites to carry adverts and campaign related spending on content development and operational spending incurred to maintain their social media accounts.

To this effect, the representatives of the Social Media Platforms (SMPs), the CEOs, State Police Nodal Officers and state IT Nodal Officers of all poll-bound States/UT were held to sensitise them of the above provisions and to validate and ensure a timely action against reported cases of misinformation, disinformation and fake-news during elections on March 19, 2026.

 

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AI sheds light on ancient board game mystery

The breakthrough that enabled a new form of unlocking past secrets using artificial intelligence (AI) was the first time an international research team utilized the code of an ancient board game and unlocked its secrets that have existed long before the new century.

The study of an engraved limestone object in the Roman Netherlands allowed the team to identify the probable game rules, depending on its specific markings.

A new study, which was published in the Antiquity journal, was directed by Maastricht University (The Netherlands) and Leiden University (The Netherlands) and contributed by Flinders University (South Australia), the Universite Catholique de Louvain (Belgium) and The Roman Museum and restoration studio Restaura in Heerlen.

The item, located in what is now Heerlen in the Netherlands, includes a design of bizarre crossing lines that for decades had bewildered archeologists.

Since majority of playing games in Roman world were drawn either in dust or in wood (where it was not likely to survive), this well-hewn limestone fragment provided a unique possibility of studying ancient rules.

The stone exhibits a pattern of geometric design and visible wear that are all conducive to sliding game pieces on its surface, a fact that highly suggests repeated play, and not an alternative use as to the stone, lead archaeologist, Dr Walter Crist, who is an archaeologist and ancient games expert.

In order to identify the type of game board the stone was and its functionality, the research team applied AI to run hundreds of potential rule sets, to identify which would generate identical patterns of wear on the object.

Can AI Recreate Simulated Play?

The fact that the carved lines are unevenly worn begs a major question regarding whether simulated play developed by AI can recreate the same pattern.

The researchers used the AI-driven play system Ludii to play two AI agents using the object as a board with rule sets of many of the board games in Europe recorded in the history, including haretavl of Scandinavia and gioco dell’orso of Italy.

Flinders University computer scientist Dr Matthew Stephenson states that it is possible to reconcile the historical and computational studies of games through the use of modern AI techniques.

The simulations were repeated, with the rules varied each time, to determine which movements would result in the same focused friction as in the original stone-surface, according to Dr Stephenson, of the Flinders College of Science and Engineering.

The simulations strongly indicated some form of strategy game called a blocking game. In the blocking games, the player attempts to put their opponent in check by denying them any movements instead of capturing the opponent.

Since there is very little written evidence of blocking games prior to the Middle Ages, the results indicate that blocking games may have a more ancient history than previously written up, whilst the work also proves the transformative power of AI in archeology.

Archaeological Approach

This is the first attempt, which employs AI-based simulated play along with the archaeological approach to recognize a board game, says Dr Crist.

It provides an archeologist with a way forward in study of ancient games not similar to those studied in surviving texts or art.

It was done at Maastricht University and as part of the Digital Ludeme Project in Europe which applied artificial intelligence to create more plausible reconstructions of ancient games both historically and mathematically.

The combination of archaeology, digital modelling and the history of cultures made the team give a better explanation of something that previously appeared to be inexplicable.

The success of this method of finding indicates that there are numerous other puzzling artefacts that could hold some concealed stories that can be uncovered by the use of modern technology, as per Dr Stephenson.

It demonstrates how AI can be used in our knowledge of materials that otherwise cannot be analyzed.

 

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Shingles Vaccine Correlated with Stunning Plummet in Cardiac Risks: Study

New research provided at the Annual Scientific Session of the American College of Cardiology shows that a shingles vaccine could provide important protection against heart complications that are life-threatening in individuals who already have a cardiovascular disease.

The researchers used a huge population of over 246,000 adults with atherosclerotic heart disease in the United States to carry out the study and discovered that individuals who had at least one dose of a shingles vaccine had significantly lower risks of serious cardiac events within one year than those who were never vaccinated.

It was found that vaccinated people had almost twice the risk to experience major adverse cardiac events – which consists of heart attacks, strokes and cardiovascular-related deaths. These results complement an emerging body of literature that the shingles vaccine has some other positive effects other than protection against viral infection.

The analysis was performed based on 2018 to 2025 health records with the TriNetX database and comparing two matched groups (more than 123,000 patients each) one of them vaccinated with Shingrix or Zostavax and the other one unvaccinated. The respondents were 50 and above and with very similar demographic and health characteristics.

The changes were intense within a follow-up period of one month to a year after vaccination. It was discovered that vaccinated patients were 46 percent lower than unvaccinated ones to suffer a significant cardiac event and 66 percent less prone to death of any cause. Heart attack risk was reduced by 32 percent and the risks of stroke and heart failure also decreased by 25 percent.

Found in High Risk Individuals

The protective effect was found to be particularly potent in people who were already at high cardiovascular risk, said the lead author Dr Robert Nguyen of the University of California, Riverside. He observed that the risk reduction is equal to significant lifestyle change like smoking cessation.

It is not new to medical experts that shingles is an inflammatory condition caused by reactivation of the varicella-zoster virus and can result in development of blood clots that may cause cardiovascular complications. The vaccine can indirectly eliminate these risks by acting as a preventive measure towards infection.

U. S. Centers for Disease Control and Prevention now suggest the use of shingles vaccination to all adults above 50 years of age and to those younger with compromised immune systems. Although the vaccine is mainly meant to stop painful rashes and long-term nerve damage related to shingles, the new benefits on the cardiovascular system can reinforce the arguments in favor of increasing the coverage.

Within One Year of Vaccination

Nevertheless, scholars warned that the research was looking at the results within one year of vaccination. The impact of long-term effect may be wavering, though previous studies pointed out that protective benefits might last many years.

There were also other limitations that were appreciated in the study. People who vaccinate might be better placed to adopt healthier behaviours on the whole, which would somewhat affect the outcomes notwithstanding the ability to control socioeconomic and lifestyle differences.

Nevertheless, the size of the dataset and the agreement of the results of the research conducted on several outcomes give credibility to the conclusion that the shingles vaccination is linked to the significant decrease in cardiovascular risk.

The evidence emerges against the backdrop of more general campaigns against vaccine hesitancy and misinformation, with scientists highlighting the possibility of established vaccines having broader health utility than previously realized.

 

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Hidden acid imbalance in kidney disease raises red flags: Japan Study

A massive national survey in Japan has found a massive gap in the routine care of chronic kidney disease (CKD), and one of the major metabolic complications used to remain undiagnosed by lack of testing.

The researchers under the leadership of Mai Tanaka have conducted the study using the data of the Japan Chronic Kidney Disease Database Extension and analyzed the clinical records of over 21 university hospitals in the period between 2014 and 2021. It targeted individuals with moderate CKD (stages 3a to 4) that already have high susceptibility to disease progression and complications.

The results indicate a glaring omission: a simple and cheap test such as serum bicarbonate, which is used to diagnose metabolic acidosis, was ordered less than 10% per year. Consequently, the condition, which, as known, deteriorates kidney outcomes and general health, seems to be considerably under-measured in the everyday care.

Metabolic acidosis is a condition that develops when the body retains too much acid in it because of a deteriorated renal strength. It has also been associated with muscle atrophy, bone mineral loss, insulin resistance with accelerated kidney disease, and an increased risk of dying. The clinical practice is to intervene in cases where the bicarbonate of the body is lower than 22 mEq/L.

Nevertheless, the Japanese statistics indicate that the burden of the condition is being hidden by the low level of testing. Although the general prevalence seemed to be low in the general population of CKD, a more detailed look at patients that indeed underwent a test showed a significantly different pattern. Almost half of them fit the criteria of metabolic acidosis, and the rates were getting higher as the kidney function declined.

Follow up care was limited even among the patients who depicted definite biochemical signs of the condition. It was determined by the study that a gap between detection and clinical response was significant, with only 8.6% actually diagnosed and only 7.5% actually treated.

Metabolic Acidosis Undetected

The results are similar to those reported in North America where individual studies of the U.S. and Canadian cohorts have also indicated that metabolic acidosis is commonly undiagnosed in CKD patients. In such researches, less than every five patients was given sodium bicarbonate treatment in spite of the facts that acid retention was associated with persistent damage to the kidney by inflammation and fibrosis.

According to experts, the problem is not about access or price, since bicarbonate testing is readily available, but it is more about the failure to integrate it into a normal monitoring practice. Current guidelines, such as those of nephrology societies, suggest routine evaluation and correction of metabolic complications in CKD but this is not done so consistently.

The paper highlights a larger issue of concern of health systems where there has been a progressive growth in cases of CKD worldwide due to aging, increased incidences of diabetes and hypertension. Researchers indicate that regular bicarbonate testing may be an intervention that is scalable and practical as a part of the regular care panel.

Early identification of metabolic acidosis would enable clinicians to start treatment, either the use of alkali therapy or diet change at a time that might allow it to delay disease onset and minimize complications.

The authors have come to the conclusion that there is not as much a problem with the rarity of the condition but its invisibility in existing practice. In the absence of regular testing, there is a high-risk chance that a high and manageable element of kidney disease can be ignored, which has long-term patient consequences.

 

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Father’s health key to pregnancy, healthy child’s birth: Study

In a significant international study, it has been observed that the health, life experience of fathers can have a significant effect on the pregnancy outcome and future well being of the children which argues the long held maternal-based approach to reproductive care.

The study, which was published in The Lancet and conducted by the team of scientists at the University of Southampton in collaboration with other international partners, claims that the prenatal health of men has long been disregarded despite its quantifiable effects on maternal health and child development.

Based on the evidence of biological, behavioural and social sciences, the study describes the ways in which the physical health of a father, his age, mental health, substance use and childhood experiences could influence the results of pregnancy. There are instances where scientists asserted that paternal factors can be as intense as -or even more so, than the conventional maternal.

Professor Keith Godfrey, a principal researcher of the study, indicated that the results represented a breakthrough in the comprehension of the role of parental health on the future generation. He mentioned that although the health of mothers is important, paying attention to it only leads to the neglect of a larger number of factors that trigger well before pregnancy.

The study presents a framework based on preconception health, in which the upbringing, education, environment of a man and exposure to stress can be influenced and impact on his health in reproductive years. The same factors, in their turn, can also affect the health behaviours of a partner, such as access to prenatal care, and have direct biological impact on the developing foetus.

Next Generation’s Health

Co-author Dr Danielle Schoenaker emphasized the inter relatedness of parental health by stating that there is a chain of influence that starts in life and continues to the next generation. The study indicates that the problems would be improved by considering these factors and thereby the health of children and their pregnancies would be better in a population.

Another issue that the researchers concern themselves with is the social implication of making women the main responsibility in the health of children. They say that this kind of practice enhances gender disparities and ignores the aspect of collective responsibility in child-rearing.

Jonathan Huang, the lead author, emphasized the bigger picture of the structural context, how historical inequalities, such as racism and colonial heritage, have caused disruption in family and community roles, especially among black and brown men. The study indicates that these disruptions have led to disparities in health outcomes and health care access.

The authors advocate culturally sensitive public health that involves more active inclusion of men in the reproductive health planning as well as initiatives of strengthening the family and community support systems.

The research concludes that the enhancement of the health of the boys and the young males should be regarded as an investment in the public health in the long term. According to researchers, policies, clinical practices and awareness campaigns should be modified to be more cognizant of an inclusive model of reproductive care one that views the father as more of an active rather than a passive participant of the pregnancy and child development process.

The authors do not underline the fact that maternal health is still the core, but represent their results as the appeal to more balanced approach when both parents are taken care of prior to, during and after pregnancy to ensure better results in the following generations.

 

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Huge Craters On an Asteroid Psyche Could Provide Clues to Early Planets

Another investigation that forms the structure of massive craters on asteroid 16 Psyche is providing new perspectives on one of the most persistent mysteries of the Solar System, whether the metallic object is the open core of an unsuccessful planet or a complex of debris formed during numerous collisions.

The scientists in the Lunar and Planetary Laboratory of the University of Arizona are the researchers who conducted the study, which was published in JGR Planets, and dedicated to the possibility of unlocking the inner composition of Psyche due to a large impact basin located near the north pole of the asteroid. The results will likely inform the interpretation of the data of the NASA Psyche space probe, which will visit the asteroid in the year 2029.

The largest known metal-rich asteroid is psyche, which is found in the prime asteroid belt separating mars and Jupiter and is one of the heaviest bodies found in the area. Its bizarre structure has been a long-standing puzzle to scientists, and rival theories have proposed that it might be the rocky and metallic inertia of an early planet, or of violent impact that caused the mixing of metals and rock over time.

To experiment with such situations, scientists ran high-speed crashes on a 3-D model of Psyche which was how a crater similar to 30 miles across and three miles deep was formed. The differing impact conditions and internal structures allowed the team to come up with predictions regarding the way various compositions would form the resulting crater and the surrounding debris.

According to the simulations, porosity, which is the empty space in the asteroid, is an important factor that affects the crater formation. This is different to solid planetary bodies, most asteroids are loose or fractured and thus can absorb impact energy in a different manner. Impacts in more porous structures will create deeper and steeper craters and less material ejected on the surface.

Asteroid layered metallic core

There were two main models of the interior of Psyche tested in the study: the asteroid is layered reaching a dense metallic core and thin rocky mantle, and the second one is that the metal and silicate materials are evenly intermingled. Although both scenarios could result in the measured crater sizes, each scenario created a different ejecta pattern and internal compression pattern.

These variations, according to researchers, may turn out to be important suggestions when there would be direct observations. Equipments in the Psyche spacecraft will capture the surface composition of the asteroid, gravity and magnetic field, an assessment of the difference in density that could have occurred due to impact in the past.

Scientists compare the research to the reconstruction of a process that has been abandoned long ago based on its remains. Through surface studies of craters and patterns of debris those studying them hope to be able to determine the internal composition of a body that might be able to tell us about the very earliest phases of planetary formation.

Origin of Psyche

The theory of the origin of Psyche has more far-reaching consequences in the field of planetary science. The discovery of the asteroid as an exposed core would give an opportunity to study processes that formed rocky planets such as Earth processes that are otherwise not reachable since planetary cores are buried deep within thick mantles.

Another theme addressed in the study is the increased importance of advanced simulations in space mission preparation. Predicting tests set in advance before the arrival of the spacecraft, researchers want to speed up the analysis of the information once the real-time stream of information arrives.

Psyche mission, which was initiated by Arizona State University and is supported by NASA Jet Propulsion Laboratory and other organizations belongs to NASA Discovery Program. By the time the spacecraft arrives at its destination towards the end of this decade, scientists are hopeful that it will provide the first close-up view of a metallic world – and possibly end a two hundred plus century long debate.

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PM Modi Lauds Retiring Rajya Sabha Members, Calls Their Experience ‘Nation’s Asset’

On Wednesday, Prime Minister Narendra Modi honored retiring Rajya Sabha members and said their experience in parliament was a lasting asset to the nation and advised young legislators to learn the lessons of their seniors.

In responding to the members who are leaving in the upper house, Modi stated that these events are beyond politics, but above all they show respect to serving the people. He commented that the parliamentary terms can end, yet the contribution of long-term leaders to the life of a country does not stop.

The Prime Minister said in politics, there are no full stops, that the experience and works of experienced lawmakers are also a part of a democratic process in the country.

Outlining the works of the old parliamentarians, Modi named several old members like H. D. Deve Gowda, Mallikarjun Kharge and Sharad Pawar as role models to be followed by the new members. He also stressed the need to commit itself to the duty of serving the people and that this commitment enhances the credibility of the institution.

The Prime Minister praised the behaviour of the Deputy Chairman of the Rajya Sabha, Harivansh Narayan Singh, in dealing with proceedings especially when situations are difficult and also keeping members of the opposite party in his trust.

Considering the changes in the way parliament operates, Modi noted that the emergence of twenty-four-seven media coverage has shifted the character of politicking. Nevertheless, he said that the traditions of wit, debate and intellectual exchange still prevail in the parliamentary culture.

He emphasized the importance of the session of turnover in the Rajya Sabha, where every three years, a third of the members retires, as a means of continuity, with new ideas coming in. This, he said, assists in sustaining institutional memory as well as reinforcing democratic performance.

Addressing the Rajya Sabha, which he referred to as an essential institution in the legislative process of India, Modi emphasized the role of the institution as a second opinion in legislation. He claimed that the bicameral form of governance enables more thorough questioning of decisions, which leads to more harmonious and sophisticated policy making.

The Prime Minister also reported that the retiring members were one of the members who served in the process of transferring the old building of Parliament to the new building to make a historical occasion in their careers.

He compared the Upper House to a great open university where members acquired experience about governance and national issues during their term in office. This is not just an experience that carries with it the contributions they make in Parliament but also prepares them to take further responsibility with the people even after leaving Parliament.

Ending his speech, Modi was sure that the members who are going will still have a significant role in the life of the people, whether in the formal political system or in the social work in general. He was appreciative of their efforts and he recognized their input in nation building.

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Over 25 Lakh Officials Deployed For Assembly Polls in 5 States

In what is being described as one of the largest coordinated electoral deployments this decade, the Election Commission of India has mobilised over 25 lakh staff to superintend future Assembly elections in Assam, Kerala, Puducherry, Tamil Nadu and West Bengal.

On March 15, the poll schedule was announced and it will include more than 17.4 crore eligible voters in the five States and the Union Territory, and by-elections in six other states. The magnitude of the deployment is about one election official in every 70 voters, which confirms the administrative nature of the exercise.

According to chief election commissioner Gyanesh Kumar, the wide presence is designed to make the elections violence-free and inducement-free and officials are instructed to remain completely impartial during the process.

It has close to 15 lakh polling staff and approximately 8.5 lakh security staff with 40,000 counting staff. Moreover, the Commission has sent approximately 49, 000 micro observers, 21, 000 sector officers and 15, 000 people specifically to monitor counting procedures.

On the ground level, there are more than 2.18 lakh Booth Level Officers (BLOs) who are the main contact with the voters. The Commission has also facilitated voter services by providing helplines and online services (ECINet application) to enable citizens file complaints or seek information online by the district/ returning officers.

In order to enhance the control, 1,111 central observers have been assigned to 832 Assembly constituencies. This set will consist of the general, the police and expenditure observers, who will be the field representatives of the Commission in keeping a check on the observance of the electoral norms. Majority of them are already in their respective constituencies.

These observers will be in close contact with the candidates, the political parties and the electorate and will provide a formal avenue of dealing with the grievances so that it can be addressed during the election period.

All the staff that will be deployed to do the election duties will work on behalf of the Commission as stipulated in the Representation of the People Act, 1951, which in effect means that they will be subordinated to temporary deputation so that the same accountability can be maintained everywhere.

This mass mobilisation follows an increased concentration on securing clean electoral procedures and the Commission reaffirms its effort of restricting inducements and a level playing field.

As the various stages of polling will be involved in many states that are politically important, the administrative and logistic component implemented will be the determinant in the smooth running of the elections.

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Keel Laid Two Next-Gen Offshore Patrol Vessels To Expand Coast Guard Fleet

On Tuesday the Indian Coast Guard completed a milestone in its expansion program in fleet with the keel laying of two new generation offshore patrol vessels at a shipyard in Ratnagiri, Maharashtra.

The Yard 16402 and Yard 16403 ceremony, which is the second and third ships in a series of six, took place at a plant run by the partner yard of Mazagon Dock Shipbuilders Limited, as part of an indigenous shipbuilding project under the push of the Indian government to be self-reliant in defence production.

The ships are designed under the government procurement route of Buy (Indian-IDDM), where the government procurement focus is on the local design, development and production. In December 2023, the contract of all six ships was signed.

The new offshore patrol vessels are strategized to have a long sea range as authorities claim that they can operate in the sea up to a distance of 5,000 nautical miles and at maximum speed of 23 knots. The length of every ship will be about 117 metres and will have 11 officers and 110 personnel.

AI-Based Predictive Maintenance

The sites will be prepared with modernized systems such as AI-based predictive maintenance, remotely operated drones, an Integrated Bridge System and an Integrated Platform Management System – systems that will promote efficiency at work and minimize downtimes.

Inspector General Sudhir Sahni, Deputy Director General (Materials and Maintenance), conducted the keel laying, an important occasion in the life of a ship that formally started the building of a vessel, in the company of top officials of the Coast Guard and the shipyard.

It is hoped that as the new vessels will be induced, the Coast Guard will be made more capable of carrying out surveillance, search and rescue, and law enforcement operations within the vast maritime areas of India. It is also introduced at the time of growing focus on coastal security and protection of maritime interests.

According to the officials, the project is part of continuing to modernise the fleet of the Coast Guard and assist in developing domestic shipbuilding capacities as part of the government initiative of Atmanirbhar Bharat.

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DNA Gaps: Why Most Neanderthal Men Preferred to Sleep With Modern Female Humans?

The latest genetic study indicates that initial interactions between Neanderthals and modern humans were uneven, with some indication that most of the Neanderthals were men who slept with female modern humans, which could be the reason behind long term gaps in human DNA.

The experiment conducted by researcher, Alexander Platt and other researchers, investigates the distribution of Neanderthal genetic material in current human beings. Although the majority of those not in Africa have some traces of Neanderthal ancestry, these have been distributed unevenly throughout the human genome.

A particularly interesting characteristic is the existence of so-called Neanderthal deserts – large areas of the DNA, in which the genetic material of Neanderthals is virtually nonexistent. These deletions are more pronounced in the X chromosome and this poses a question on how the ancient interbreeding process occurred.

There has been long speculation among scientists as to whether these deletions were due to natural selection (whereby the deleterious Neanderthal genes are becoming more and more extinct) or that the interbreeding itself is the cause.

The researchers reversed the question to investigate. They did not simply study the Neanderthal DNA of the contemporary human beings, but rather the remnants of the early modern human DNA in the Neanderthal genomes. The comparison of these with genetic data of the sub-Saharan African populations, most of which do not have Neanderthal ancestry, helped the team recreate ancient gene flow patterns between the two groups.

Great Imbalances in DNA

Their results showed a great imbalance: the proportion of the modern human DNA in the Neanderthal X chromosomes was much higher than anticipated- approximately 62 percent higher. Researchers believe that such an asymmetry can best be attributed to the possibility that the vast majority of the interbreeding took place between male Neanderthals and female modern humans.

This would limit the survival of Neanderthal X-linked DNA into the subsequent generations of human population because males can only transmit their X chromosome to the females. This would over time lead to the low concentration of Neanderthal genetic material on the human X chromosome today.

The paper also indicates that social or behavioural influences, including mate preferences, could have contributed to the development of such patterns, but demographic influence, such as the variation in number or migration cannot be disqualified.

Natural Selection Behind Imbalance?

Moreover, this imbalance was probably supported by natural selection. Dangerous or incompatible genes of Neanderthals especially those associated with significant biological functions might have been gradually eliminated in human gene pool across generations.

The results provide a new understanding of the complicated relationships between the early human groups and the ones closest to their evolutionary lineage not only regarding genetic inheritance but also on social process that might have influenced the evolution of humans.

Using the combination of genomic evidence and evolutionary modelling, researchers indicate that the study is leading scientists nearer to the realization of how ancient interbreeding events still impact the genetic landscape of modern humans.

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Organ Donations After Cardiac Death Soar in US, Expand Transplant Lifeline 

One of the significant changes in the way people approach organ donation in the United States is the growing availability of transplantation organs, with almost half of all donors being patients whose heart has gone dead, according to latest studies.

According to the study by scientists at NYU Langone Health, it has been established that donation after circulatory death (DCD) has increased significantly in the last 25 years – marking an increase of 2 percent of all donors in 2000 to 49 percent in 2025. According to the findings published in Journal of the American Medicine, the development of medical technology is transforming transplant medicine.

The growth has been realized when demand is acute. According to the United Network for Organ Sharing, more than 100,000 individuals are already on transplant waiting lists in the U.S., and this fact requires finding new sources of viable organs.

Conventionally, organs donated have been infected out of patients who have been declared brain dead, those organs keep being oxygenated with the heart still beating. Conversely, DCD deals with patients who are not yet dead, but are on life support. In case life-sustaining treatment is withdrawn and the patient dies in a given period, then organs can be removed to be transplanted, though it must be otherwise previously agreed.

Drawbacks Overcome With Tech 

In past, organs transplanted by such sources were less viable because of a short period of lack of oxygen following the cessation of the heart. Nevertheless, these drawbacks have been overcome with the recent technology advances.

Improved organ preservation has been achieved using techniques like normothermic regional perfusion in which blood flow to organs is resumed following cardiac death and machine perfusion systems in which oxygenated fluids are delivered extravascularly. These inventions have made innovations through which the surgeons can safely utilize organs that were not considered to be perfect.

According to researchers, this has expanded the pool of donors. The researchers discovered that current DCD donors are older individuals with higher probabilities of underlying diseases like diabetes or hypertension as compared to previous generation, which is more inclusive in the selection of the donor.

Syed Ali Husain, the lead author, indicated that the increase in circulatory-death donations is already producing a tangible impact, and thousands of patients were already getting transplants who otherwise would not have been able to survive the wait.

Regional Disparity Persists

The national data on transplants also indicated that there were disparities in the connections of the regions. DCD donors contributed up to 73 per cent of all donations in certain regions of the country and only 11 per cent in other regions indicating a lack of balance in the practice.

The researchers working on the study underlined the importance of developing uniform national standards and ongoing involvement of the population to protect the ethics and preserve a trusting attitude towards the process of donating.

Researchers believe that more papers are required to understand long-term outcomes and enhance protocols as the DCD is becoming more popular. Further research will aim to enhance the process of donor identification and understand the performance of organs of donors who died of a circulatory death as opposed to the performance of organs of those who died of a traditional brain-death.

The results represent an important development in the field of transplant medicine – one that may aid in reducing the disparity between supply and demand of organs, and also pose new challenges to clinical practice, ethics and popular opinion.

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Bull Sharks Form Social Bonds, Finds Study; Changes age-Old Perception of Predators

A recently published long-term study has been carried out in the Shark Reef Marine Reserve in Fiji which has discovered that bull sharks have stable social connections, that they show preferences towards particular companions instead of associating with anyone randomly, which supports the old view of sharks as highly individualistic creatures.

The study conducted by the scientists at the University of Exeter, Lancaster University, Fiji Shark Lab and Beqa Adventure Divers monitored the behaviour of 184 bull sharks during six years. The analysis of people at three stages of life has been made sub-adults, adults and older, post-reproductive sharks, which provides one of the most comprehensive insights to date on shark social structure.

The researchers claim that the sharks showed what they refer to as active social preferences and the sharks often associate with specific individuals and shun certain individuals. These relationships were assessed using proximity of sharks which swam within one body length of one another and more complex relationships like parallel swimming and the pattern of the leader-follower movements.

According to lead researcher Natasha D. Marosi, the results indicate that there are similarities between the results and social behaviour in humans and other animals whereby people do not interact randomly but instead have a range of relationships.

In the study, the adult sharks constituted the center of these social networks and the most common and close interaction were among the sharks of the same size. Conversely, younger sub-adults and older sharks were not as socially bound meaning that there might be differences in social activity among life stages.

Males Prefer Larger Number of Social Contacts

It was also found by the researchers that both male and female sharks preferred associating with females. Nevertheless, males were determined to have a larger number of social contacts in general. The study hypothesizes one possible reason, which is that larger male sharks can reduce the threats of aggression by other large sharks through heightened social integration.

Professor Darren Croft of the University of Exeter stated that the research evidence suggests the degree of behavioural sophistication which is not normally associated with sharks, indicating that sociality can confer benefits such as foraging success, learning and mating opportunities and avoiding conflict.

The Shark Reef Marine Reserve, which is an enclosed zone where sharks flock throughout the year allowed tracking the same species over a period of time. This consistency enabled scholars to examine how social associations were changed with the passage of time as the sharks grew old.

The paper also emphasized the fact that younger sharks are more likely to be found in other habitats including nearshore, rivers and estuaries where evading predators, including adult bull sharks is their main survival strategy. Few sub-adults were seen coming into the reserve with some seemingly being able to establish relationships with older sharks, which could have helped them integrate and learn.

In the old sharks, however, the researcher found them to be less active socially, which they theorize might indicate a certain level of experience in hunting and survival, and therefore, experience no necessity of social interaction.

Researchers say that the findings may be used in conservation efforts. The improved knowledge of shark socialization can be used to inform the management policy, especially in the protection zones where human activity and ecotourism overlap with the marine ecosystems.

Fiji Shark Lab is currently collaborating with Fiji Ministry of Fisheries to integrate the behavioural perspectives of the study into the conservation process since scientists keep on trying to understand the social lifestyle of shark species, which have been severely misinterpreted over a long period of time.

 

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Poor smoke does not equal poor risk: All solid fuels identified to produce ultrafine particles

University of Galway-led research has discovered that when low smoke manufactured fuels are burnt, they emit minute ultrafine particles which may be even more detrimental to human health.

The Ryan Institute at the University conducted several controlled burn experiments with peat, wood, “low-smoke” manufactured products, such as “low-smoke” coal – since 2022, banned in domestic stoves – and several domestic heating fuels to figure out precisely what various domestic fuels emit to the air.

The scientists quantified the smoke with sophisticated equipment that relies on monitoring the number of particles that are generated, their size, and their composition.

The team also took real-life measurements of air in Dublin and Birr, Co Offaly over a period of several years and thus they were able to compare lab results and what people actually breath in during periods of winter pollution.

With the help of these measurements and known statistical fingerprinting methods and proven lung-deposition models, the researchers were able to determine the most harmful contribution of fumes by different fuels and how deep these particles may enter the respiratory system.

The findings – the ones witnessed in a low smoke zone in Ireland and applicable in the rest of Europe and with immense implications on the regions that are in an extremely rapid transition like those in China and India – indicate that the EU, international and national regulatory frameworks must react quicker to the accumulating body of scientific evidence.

This study was published in Nature Geosciences.

This was a research conducted by the Centre of Climate and Air Pollution Studies, Ryan Institute, University of Galway, in conjunction with Irish, Chinese, Australian and USA partners.

Director of the Centre of Climate and Air Pollution Studies, Professor Jurgita Ovadnevaite at the Ryan Institute, University of Galway, stated: “In an attempt to reduce the amount of particulate mass, our research indicates that emissions of the smallest particles have been inadvertently increased and this could be even more detrimental to the human condition than the larger ones. These ultrafine particles of the low smoke fuels get to the deepest point of the lungs, then to the cardiovascular system and it even gets to the brain.

On this basis, we highlight why we should abandon residential solid fuel burning as one of the broader societal goals to decarbonise the economy by 2050.

The research also reveals that there is a serious necessity to revise EU and International air quality standards and cover ultrafine particles in the list of pollutants so that the mass concentration may be managed without an increase in the number of ultrafine particles.

In the study, it is shown that the substitution of smoky fuels with the low-smoke counterparts doubles and even triples the amount of ultrafines emissions.

Taking into account the fact that the smaller ultrafine particles are capable of penetrating more deeply into the lungs and settling there, the newly recorded trend can offset some of the benefits of the reduction in smoke emission. Rather than decreasing the total exposure of the human being to ultrafine particles by decreasing the total mass of the particulate matter (PM), it leads to a subsequent increase in the number of ultrafine particles and, possibly, health effects.

Air pollution/Photo:en.wikipedia.org

Literature indicates that the concentrations of the number of particles in the air are greatly (ten times) underrated in the existing air quality models.
Air pollution causes a number of several million premature deaths every year around the world. One of the greatest factors contributing to this frightening statistic is exposure to airborne fine particulate matter (PM2.5; less than 2.5 um in diameter). PM2.5 pollution is associated with over 1,700 premature deaths per year even in Ireland, which is commonly viewed to have clean air. Ultrafine particles (smaller than 100 nm in diameter), in comparison to PM2.5, cause more severe pulmonary inflammation and long-term lung retention because of their potential to penetrate deep to the respiratory tract even through the bloodbrain barrier. They become more toxic with diminishing size, greater specific surface area, constituents that are bound on the surface and their intrinsic physical characteristics.

Although the health impact of ultrafine particles continues to be identified as a health issue in the European policy, with the recent amendment of the Ambient Air Quality Directive (EU 2024/2881), the first time that includes the obligatory monitoring of ultrafine particles in the Member States. This research contributes to the literature that the directive should extend further and establish binding regulatory limit values of ultrafine particles.

The Centre for Climate and Air Pollution Studies, University of Galway, offers evidence to policymakers in the country and EU, aiding in the formulation of air-quality standards, emission-reduction policies and planning of climate actions. Its effort is the foundation of the ability of Ireland to comply with new regulatory standards, such as the new EU regulations on the ultrafine particle monitoring.

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