Science News - The Hindu- Page 7

Buoyant aerosol: Smaller droplets, less than five microns, evaporate faster than they settle, hence, get carried away by air to longer distances.

Can coronavirus spread through airborne transmission of aerosols?

A study measured the size distribution, travel distance and velocity of droplets when a person coughs or speaks

Fallout: COVID-19 will take away at least six months from the productive life of PhD students.

Plight of doctoral students during the pandemic

Useful discovery: The antibody could help block infection in cultured human cells.

Monoclonal antibody to block coronavirus infection identified

Aswathi Pacha The team had isolated the SARS virus duringthe outbreak of 2002

Mannequins covered with face masks displayed at a shop in Bengaluru’s Rajarajeshwari Nagar on Tuesday.

Coronavirus | Social distancing norms of 6 feet insufficient, virus can travel nearly 20 feet: study

PTI Novel coronavirus can spread up to three times further in cold and humid weather, according to the researchers

Editor's Pick

Herd immunity: The concept is generally used to calculate how many people will need to be vaccinated in a population in order to protect those who are not vaccinated.

Aiming to achieve herd immunity naturally is ‘dangerous’, WHO warns

R. Prasad Only well-designed studies on those recovered from COVID-19 can provide the much-needed information on immunity

Traditional belief and today’s science

D. Balasubramanian

AYUSH can fight COVID-19, while Ganga Jal can only carry it

Three -layered: The middle layer is deposited with anti-viral and anti-bacterial agents.

IISc develops antimicrobial composite material and testing protocols for PPEs

Shubashree Desikan It stops particles over 0.3 micrometres in size with about 95% efficiency

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Watch | What is a heat wave?

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India in talks to be part of East Asian Observatories Consortium

Australia’s iconic platypus under threat from climate change: study

Feathers grew differently on dinosaurs and birds

Question Corner: Geometry of lines

TB diagnostic test developed in India has high accuracy, says WHO

IIT Bombay efficiently removes heavy metals from water

Stray dogs may have a natural ability to understand human gestures

Stray dogs have the natural ability to understand human gestures, and respond to some cues better than the others, according to a study which may

Eastern Ghats: land use policies, climate change hit endemic plant habitats

The region has over 450 endemic plant species, yet remains degraded

Quiz: This week, it’s all about physics units named after people

A molecular biologist from Madurai, our quizmaster enjoys trivia and music, and is working on a rock ballad called ‘Coffee is a Drink, Kaapi is an Emotion’. @bertyashley

Science flourishes when people are free to question authority, says Nobel Laureate Venkatraman Ramakrishnan

India has a secular Constitution, and it’s not clear that having a religious criteria for a particular law is going to hold up in courts, he says

Tuberculosis control programme renamed, to focus on elimination

It is no longer known as the Revised National TB Control Programme (RNTCP), and has been rechristened as the National Tuberculosis Elimination Programme

TB diagnostic test developed in India has high accuracy, says WHO

Truenat can be used as an initial and point-of-care tool at primary, community health centres

Four astronauts selected for Gaganyaan to get 11-month training in Russia

The aqstronauts’ training in Russia will start from the third week of January, said Union Minister Jitendra Singh

Journal 'Nature' denounces violence inside university campuses

This is the first time a scientific journal has denounced the violent attacks on students protesting against the Citizenship Amendment Act

A new virus emerges in China

A novel coronavirus has been identified in 41 people in Wuhan City, Hubei Province of China

Oldest material on Earth found inside meteorite that hit Australia

The oldest of 40 tiny dust grains trapped inside the meteorite fragments dated from about 7 billion years ago, about 2.5 billion years before the sun, Earth and rest of our solar system formed

Ariane rocket to launch ISRO’s GSAT-30 satellite on January 17

With a mission life of 15 years, GSAT-30 is an operational communication satellite for DTH, television uplink and VSAT services

Will the sequencing of the Indian cobra genome help in discovering broad-based antivenoms?

The Indian cobra, the common krait, Russell’s viper, and the saw-scaled viper have long been considered responsible for most snake bites on the Indian subcontinent.

Investigation into papers with problematic images complete, report submitted: CSIR director-general

The committee was formed in response to an article written in The Hindu about 130 scientific papers that had problems with images.

New method better estimates melting of debris-covered Himalayan glaciers

The debris partially insulates the glacier from the warm exterior thereby slowing down the melting

IIT-M designs room temperature sodium sulphur battery

The battery was able to achieve higher charge storage capacity and nearly zero self-discharge when not in use

Species-rich forests offer stable carbon capture

Teak, eucalyptus plantations had 43% and 55% less carbon storage than natural forests, respectively

India should lead in the fight against multidrug-resistant pathogens

India is already the major vaccine provider for children across the world

NCBS Archives tells stories of how science blossomed here

Letters, photographs, old instruments and notebooks are among 50,000 objects at the Archives

Indian-American among NASA’s new astronauts; all set to conquer Moon, Mars

The astronauts will receive a gold pin once they complete their first spaceflights.

NASA discovers Earth-sized exoplanet in habitable zone

The star lies in the TESS continuous viewing zone in the Southern Ecliptic Hemisphere.

Watch | Olive Ridley turtles mate at Rushikulya

A video featuring the 'large crowd mating' of Olive Ridley turtles on the Odisha coast

LIGO team detects second merger of two neutron stars

The total mass of the system is so high it suggests an unusual formation process for the binary

Genome of Indian cobra sequenced

Could lead to production of more effective anti-venom, say scientists

Serum’s pneumococcal vaccine, once approved, could be cheaper option in the private market

Indian trial data of phase-3 has been submitted recently and approval from Drugs Controller General of India might not take long

New data relay satellites to keep Gaganyaan crew in touch with Earth

Astronauts can be fully and continuously in touch with mission control throughout their travel

Massive black holes found in dwarf galaxies

A study found 13 massive black holes, about 4,00,000 times as heavy as the Sun, in dwarf galaxies which are more than 100 times smaller than our own Milky Way

Challakere to be ISRO’s astronaut training hub

Plan ready for Space Flight Centre to come up at site in Karnataka’s Chitradurga

In a first, astronaut with blood clot treated by doctors on Earth

This could be critical for the health of astronauts during future space exploration missions to the moon and Mars

Contrasting water-wetting behaviour used for anti-counterfeiting measure

The smart interface embedded with two water wettabilities can hide or reveal information

How humans affect genetic connectivity of four mammals

Four wide-ranging mammals — jungle cats, leopards, sloth bears and tigers — were studied in central India

Modi exhorts students to innovate and patent at Indian Science Congress

"New India” needs technology and a “logical temperament” to invent and disseminate technological solutions, says PM

SARs up: the Indian radar imaging satellites story has only begun

Among the significant but low-profile Indian space missions of 2019 were the launches of two Radar Imaging Satellites, RISAT-2B and RISAT-2BR1.Earth

Science Congress takes ‘extra care’ to weed out pseudo science

Prime Minister Narendra Modi is slated to inaugurate the congress, which is scheduled to take place between January 3-7, at the University of Agricultural Sciences (UAS) in Bengaluru on January 3.

Delivering TB vaccine intravenously vastly improves efficacy: study

Nine of the 10 animals that received the vaccine were highly protected when exposed to TB bacteria six months after vaccination

Vikram was not designed to handle large spike in speed, says ISRO Chairman

Defects corrected in the new modules of Chandrayaan-3, says K. Sivan

Gaganyaan, Chandrayaan-3 in mission mode, says ISRO

Four astronauts shortlisted for Gaganyaan set to undergo training in Russia

Chennai scientist chosen for INSA science popularisation prize

Computer scientist R. Ramanujam has been associated for over thirty years with a Tamil science magazine Thulir.

The 10 most read science articles of The Hindu online in 2019

2019 was a happening year for the world of science — scientists shared the image of a black hole, proved superconductivity at room temperature, and even investigated a space crime.

Question Corner: Are buildings with stilt parking at greater risk of collapsing due to earthquake?

Readers may send their questions/answers to questioncorner@thehindu.co.in

Musth does not necessarily give younger, male Asian elephants an edge

Going into musth is a roving strategy primarily advantageous to old males not to young males

Shape of Sun’s corona accurately predicted

The advance prediction gives a large window of preparedness for space weather variations

Need a different approach to address child malnutrition

Though it is declining in India, the rate of decrease is very slow

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Delhi Home guard staff thermal screen the passengers waiting at the DTC bus stop amidst the lockdown imposed till May 31, in New Delhi on May 29, 2020.

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The fund was set up to accept donations for relief measures during the pandemic. Photo: Reuters

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Migrant labourers walking towards Dr MGR Chennai Central via Poonamalee High Road

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Wajid Khan (R) with brother Sajid Khan of Sajid-Wajid duo during the Mirchi Music Awards in Mumbai on January 27, 2011.

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Public wait in the queue under the scorching sun defying physical distancing norms at a ration shop in South Alagapuram in Salem.

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Migrant labourers pull handcart loaded with building materials during the nationwide lockdown in New Delhi on May 30, 2020.

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A school teacher in Chennai Corporation school teaches tenth and twelfth standard students through online class in Chennai on Monday.

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This image made available by the U.S. Food and Drug Administration on Thursday, May 28, 2020 shows a label for the drug metformin.

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