Search results for ' Particl'

Coronavirus may spread more via respiratory droplets in winter

Coronavirus may spread more via respiratory droplets in winter

Rediff.com15 Oct 2020

The study also noted that the currently followed physical distancing guidelines are inadequate in curbing the transmission of COVID-19.

Delhi's air 'very poor' on morning after Diwali but better than previous yrs

Delhi's air 'very poor' on morning after Diwali but better than previous yrs

Rediff.com25 Oct 2022

According to forecasting agencies, the city is set to record its best air quality for the day after Diwali since 2015 on Tuesday.

India home to 18 of 20 cities with most severe rise in PM2.5 pollution: Report

India home to 18 of 20 cities with most severe rise in PM2.5 pollution: Report

Rediff.com17 Aug 2022

The report Air Quality and Health in Cities combined ground-based air quality data with satellites and models to produce air quality estimates for cities around the world.

Six feet gap not enough to prevent virus spread, says study

Six feet gap not enough to prevent virus spread, says study

Rediff.com15 Sep 2021

Physical distancing of two metres - about six and a half feet - may not be enough to sufficiently prevent transmission of virus-carrying airborne aerosols indoors, says a study.

7 Foods Bad for Your Teeth

7 Foods Bad for Your Teeth

Rediff.com2 Jun 2022

Dr Karishma Jaradi explains how excessive consumption of tea, coffee and lemon can be detrimental to healthy teeth.

Can your mask give you bad breath?

Can your mask give you bad breath?

Rediff.com16 Sep 2021

If you are not following the right mask hygiene, you could be suffering from 'mask mouth'. Here's how you can avoid this problem.

India's Worst Mountaineering Tragedy

India's Worst Mountaineering Tragedy

Rediff.com10 Oct 2022

27 mountaineers perished in an avalanche in the mountains of Uttarakhand last week. The mountaineers were returning from a trek to the Draupadi's Danda mountain peak when disaster struck at 8.45 am in the morning.

8 Tips To Fight Bad Breath

8 Tips To Fight Bad Breath

Rediff.com14 Mar 2022

Ensure you drink about 6-to-8-glasses of water every day to escape dryness of the mouth.

Scientists recommend 40% humidity to curb COVID-19 spread

Scientists recommend 40% humidity to curb COVID-19 spread

Rediff.com21 Aug 2020

In their review of studies, published in the journal Aerosol and Air Quality Research, the scientists specifically drew focus on relative humidity, which is a measure of water vapour in the air compared to the total saturation of vapour that can exist in the air at its current temperature.

Nanotechnology: Studying small particles for a big career

Nanotechnology: Studying small particles for a big career

Rediff.com7 Oct 2009

As miniaturisation gets even more popular, the demand for professionals who master the underlying principles that enable the process is expected to rise exponentially.

God particle? But the devil is in the details

God particle? But the devil is in the details

Rediff.com10 Jul 2012

With the confirmation of the Standard Model or perhaps a modification of it, we have a reason to remain hopeful that maybe we are a step closer towards realising the holy grail of physics, says Vidya Ramanathan

Safe Holi: How To Pick Organic Colours

Safe Holi: How To Pick Organic Colours

Rediff.com17 Mar 2022

It is important to do a small skin test before buying colours for Holi. Natural colours would wash off with water without leaving any marks

Tokyo 2020 logo satire pulled after furore

Tokyo 2020 logo satire pulled after furore

Rediff.com22 May 2020

He said it was an infringement of copyright but did not threaten legal action.

India saw 23.5 lakh pollution deaths in 2019, highest in world

India saw 23.5 lakh pollution deaths in 2019, highest in world

Rediff.com18 May 2022

In India, air pollution is most severe in the Indo-Gangetic Plain (northern India), where topography and meteorology concentrate pollution from energy, mobility, industry, agriculture, and other activities, the researchers said.

'We Need To Let Nature Heal'

'We Need To Let Nature Heal'

Rediff.com25 Oct 2022

'When Covid first struck, the lockdown resulted in clean air in major Indian cities.' 'You were able to see the Himalayan range from Ludhiana.' 'In Delhi, you were seeing deer and stags all over the city because there was no traffic.' 'It was incredible. Nature was waiting to come back.'

Vaccine-generated antibodies no shield against Omicron, says study, booster a must

Vaccine-generated antibodies no shield against Omicron, says study, booster a must

Rediff.com2 Mar 2022

Antibodies produced by two doses of mRNA vaccines against the original and early variants of the SARS-CoV-2 virus wane substantially over time, and offer essentially no protection against Omicron, according to a study that highlights the importance of a booster dose.

Omicron: What Mask Should I Wear?

Omicron: What Mask Should I Wear?

Rediff.com29 Nov 2021

'Every time you put on a mask and take the mask off and adjust the fit, you are putting additional fatigue on the materials.'

Delhi breathes easier, more relief likely

Delhi breathes easier, more relief likely

Rediff.com6 Nov 2019

According to senior IMD scientist Kuldeep Srivastava, clear sky or absence of clouds allows sun rays to reach the ground, warming up the air close to the ground which lifts up and clears the pollutants.

Delhi's air quality severe, relief unlikely soon

Delhi's air quality severe, relief unlikely soon

Rediff.com9 Nov 2020

The central government's Air Quality Early Warning System for Delhi said a "significant improvement in air quality is not likely" owing to slow wind speed, particularly during night time, and contribution from farm fires.

Delhi's air quality 'severe', likely to remain so on Diwali

Delhi's air quality 'severe', likely to remain so on Diwali

Rediff.com7 Nov 2020

Experts said while meteorological conditions were "moderately" favourable for dispersion of pollutants, a "very high" number of farm fires in Punjab was the primary reason for "severe" air quality.

Aerosols carrying Covid virus can travel in air up to 10m: Centre

Aerosols carrying Covid virus can travel in air up to 10m: Centre

Rediff.com21 May 2021

Nasal droplets fall within 2 metres from a COVID-19 infected person and the aerosols can travel in air up to 10 metres, the Office of the Principal Scientific Adviser said on Thursday, adding that proper ventilation can decrease the risk of transmission.

Scientists developing chewing gum that could reduce Covid spread

Scientists developing chewing gum that could reduce Covid spread

Rediff.com6 Dec 2021

The researchers noted that people who are fully vaccinated can still become infected with SARS-CoV-2 and can carry a viral load similar to those who are unvaccinated.

Delhi's air 'very poor' again due to high humidity

Delhi's air 'very poor' again due to high humidity

Rediff.com7 Nov 2019

On Sunday, too, a drizzle resulted in an increase in humidity, triggering a massive pollution spike.

Elite athletes at risk of coronavirus spread to lungs

Elite athletes at risk of coronavirus spread to lungs

Rediff.com29 Apr 2020

The research suggests that due to strenuous exercise, elite athletes are more likely to inhale virus particles and direct them to the lower areas of the lung.

11 Tips To PROTECT SKIN In The Monsoon

11 Tips To PROTECT SKIN In The Monsoon

Rediff.com27 Jun 2022

Using lightweight products and following a monsoon skin care routine can keep problems at bay.

Beijing turns yellow as city sees worst sandstorm

Beijing turns yellow as city sees worst sandstorm

Rediff.com15 Mar 2021

The Chinese capital Beijing was shrouded in thick brown dust on Monday morning as a result of heavy winds blowing in from Inner Mongolia and other parts of northwestern China.

Video: Hina Khan shows how to wear the mask correctly

Video: Hina Khan shows how to wear the mask correctly

Rediff.com19 Mar 2020

Hina Khan's tutorial on how to wear the mask right in this video.

'Strong evidence' COVID-19 predominantly spreads through air: Study

'Strong evidence' COVID-19 predominantly spreads through air: Study

Rediff.com16 Apr 2021

The researchers noted that transmission rates of SARS-CoV-2 are much higher indoors than outdoors, and transmission is greatly reduced by indoor ventilation.

Monsoon: 10 Foods To Stay Healthy

Monsoon: 10 Foods To Stay Healthy

Rediff.com14 Jul 2022

A pinch of turmeric in a glass of milk or with honey in hot water would be ideal for the monsoon.

Air pollution may hinder India's fight against COVID-19: Scientists

Air pollution may hinder India's fight against COVID-19: Scientists

Rediff.com27 Oct 2020

Long-term exposure to chronically high PM2.5 levels weakens the ability of the lungs to fend off infections, therefore making people more susceptible to COVID-19, the scientists said.

After Chandrayaan-2, ISRO ready for solar mission next year

After Chandrayaan-2, ISRO ready for solar mission next year

Rediff.com22 Jul 2019

Aditya-L1 is meant to observe the corona, which are the outer layers of the Sun, extending to thousands of kilometres.

India's first smog tower fails to give breathable air to Delhiites

India's first smog tower fails to give breathable air to Delhiites

Rediff.com6 Nov 2021

The 24-metre-high air purifier recorded a PM2.5 concentration of 642 micrograms per cubic metre at the inlet and 453 micrograms per cubic metre at the outlet.

N95 masks most effective at stopping COVID-19 spread: Scientists

N95 masks most effective at stopping COVID-19 spread: Scientists

Rediff.com26 Aug 2020

The N95 masks reduced a cough's initial velocity by up to a factor of 10, and limit its spread to between 0.1 and 0.25 meters, the researchers said.

'Increase in air pollution affects Covid patients'

'Increase in air pollution affects Covid patients'

Rediff.com30 Nov 2020

'Covid patients have infected lungs and the pollutants will further damage it.'

Coronavirus evolving to be better at becoming airborne: Study

Coronavirus evolving to be better at becoming airborne: Study

Rediff.com20 Sep 2021

The team led by researchers at the University of Maryland in the United States found that people infected with SARS-CoV-2 exhale infectious virus in their breath, and those infected with the Alpha variant put 43 to 100 times more virus into the air than people infected with the original strains of the virus.

Why Covid Cases Are Rising

Why Covid Cases Are Rising

Rediff.com8 Jun 2022

'Since many people are vaccinated, this virus is now concentrating on the throat and the nose and replicating fast and transmitting also very fast.' 'That's because the current vaccines will not be able to fight it when it is in the throat, nose or the mouth.'

Is COVID-19 like a thief in the night?

Is COVID-19 like a thief in the night?

Rediff.com17 Aug 2020

'COVID-19 comes in, we have our immune response, the immune response overtakes COVID-19 in no time, usually within a day.' 'Fortunately, the majority who get infected will also be in that first category , where there is no damage and the virus is completely overcome.'

Delhi air quality nears 'severe' zone as farm fires shoot up

Delhi air quality nears 'severe' zone as farm fires shoot up

Rediff.com29 Oct 2020

The central government's Air Quality Early Warning System for Delhi said a significant increase in the number of "fire points" was observed over Punjab (around 3,000), Haryana and Uttar Pradesh on Wednesday, which is likely to impact the air quality of Delhi-NCR and other parts of northwest India.

India's first smog tower inaugurated in Delhi

India's first smog tower inaugurated in Delhi

Rediff.com23 Aug 2021

Chief Minister Arvind Kejriwal inaugurated the 'country's first smog tower' at Connaught Place in New Delhi on Monday and said it will prove to be a milestone and many such structures can be installed in the city if the pilot project yields results.

6 feet apart may not be enough to stop COVID-19

6 feet apart may not be enough to stop COVID-19

Rediff.com20 May 2020

According to the scientists, shorter adults and children could be at higher risk if they are located within the trajectory of the saliva droplets.