Prominent Muslim leader, former minster Qamarul Islam passes away

London, May 20: The current physical distancing guidelines of 6 feet may be insufficient to prevent COVID-19 transmission, according to a study which says a mild cough in low wind speeds can propel saliva droplets by as much as 18 feet.

Researchers, including those from the University of Nicosia in Cyprus, said a good baseline for studying the airborne transmission of viruses, like the one behind the COVID-19 pandemic, is a deeper understanding of how particles travel through the air when people cough.

In the study, published in the journal Physics of Fluids, they said even with a slight breeze of about four kilometres per hour (kph), saliva travels 18 feet in 5 seconds.

"The droplet cloud will affect both adults and children of different heights," said study co-author Dimitris Drikakis from the University of Nicosia.

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

They said saliva is a complex fluid, which travels suspended in a bulk of surrounding air released by a cough, adding that many factors affect how saliva droplets travel in the air.

These factors, the study noted, include the size and number of droplets, how they interact with one another and the surrounding air as they disperse and evaporate, how heat and mass are transferred, and the humidity and temperature of the surrounding air.

In the study, the scientists created a computer simulation to examine the state of every saliva droplet moving through the air in front of a coughing person.

The model considered the effects of humidity, dispersion force, interactions of molecules of saliva and air, and how the droplets change from liquid to vapour and evaporate, along with a grid representing the space in front of a coughing person.

Each grid, the scientists said, holds information about variables like pressure, fluid velocity, temperature, droplet mass, and droplet position.

The study analysed the fates of nearly 1,008 simulated saliva droplets, and solved as many as 3.7 million equations.

"The purpose of the mathematical modelling and simulation is to take into account all the real coupling or interaction mechanisms that may take place between the main bulk fluid flow and the saliva droplets, and between the saliva droplets themselves," explained Talib Dbouk, another co-author of the study.

However, the researchers added that further studies are needed to determine the effect of ground surface temperature on the behaviour of saliva in air.

They also believe that indoor environments, especially ones with air conditioning, may significantly affect the particle movement through air.

This work is important since it concerns safety distance guidelines, and advances the understanding of the transmission of airborne diseases, Drikakis said.

Bidar, Jan 31: In a disturbing development, the police have arrested two women – a schoolteacher and mother of two students – in connection with staging a play against the Citizenship Amendment Act and National Register of Citizens at a prestigious school in Karnataka’s Bidar.

The arrested have been identified as Farida Begum, headmistress of Shaheen Urdu Medium Primary School, and Navida, the mother of a student who played a role in the play.

The development comes days after police filed a sedition case against the management of Shaheen School following a complaint lodged by the ABVP claiming that play contained objectionable dialogues against Prime Minister Narendra Modi. The drama was performed during an annual function of the school on January 21.

Bidar SP Sreedhara T confirmed the arrest of Farida Begum and Navida, and said the accused were remanded to judicial custody on Thursday.

Sreedhara said that based on the complaint by one Neelesh Rakshal, the police filed an FIR under sedition charges, initially against the headmistress and management of the school on Saturday. He said that the police have questioned about 50 people, including the members of the management committee of Shaheen Urdu Medium Primary School, staff of the school, audience, parents and students. Based on the statements and evidence, the headmistress and the parent have been arrested.

The SP said that as per the statements and evidence collected, they came to know that the headmistress played a major role in organising the controversial play. The students practised the drama for a week and the headmistress knew about its script containing controversial dialogues against the Prime Minister and senior BJP leaders.

Considering this, she has been booked for creating communal disharmony and abetting sections. The SP said that when a dialogue of slapping the Prime Minister was said on the stage, Navida gave her chappals to the child, to be used while saying the dialogue. She has been arrested for abetting.

Expressing shock over sedition case and arrests, Dr Abdul Qadeer, the chairman of Shaheen Group of Institutions, said that the school management would fight out legally.

About Shaheen Group

Founded by Dr Abdul Qadeer, Shaheen Group has spread its wings through nine states of India and runs 43 institutions and related units. It has also been running a unique course for Huffaz named as ‘Hifz Ul Quran Plus’ in which Huffaz are prepared to appear and excel in competitive exams (NEET-JEE(IIT)).

According to Dr Qadeer, Shaheen’s mission is to engage, educate and empower wards, equipping them with strengths to enter the world of opportunities through free education across various domains in state- owned academic centers of excellence.

The group also runs coaching centers for medical and engineering entrance examinations. So far 1,200 students from the Shaheen Group of institutions got seats in government medical colleges, he said.

‘Hifz Ul Quran Plus’ course was for huffaz between 12 and 17 years. A four-year integrated course is conducted for Huffaz-E-Karam for getting students modern education. By pursuing this course and by appearing in competitive exams (NEET-IIT JEE), Huffaz will be able to get admission into MBBS, BE, & MBA, he said.

New Delhi, Jul 9: India reported the highest single-day spike of 24,879 new positive cases and 487 deaths in the last 24 hours, taking the total number of COVID-19 cases in the country to 7,67,296, according to the Union Ministry of Health and Family Welfare.

Out of the total number of cases, 2,69,789 are active, 4,76,378 have been cured/discharged/migrated and 21,129 have died.

Maharashtra remains the worst-affected state due to COVID-19 with as many as 2,23,724 cases, including 91,084 active, 1,23,192 cured/discharged and 9,448 deaths.

It is followed by Tamil Nadu (1,22,350) and Delhi (1,04,864).

Meanwhile, a total of 1,07,40,832 samples have been tested for COVID-19 till July 8. Of these, 2,67,061 samples were tested yesterday, stated Indian Council of Medical Research (ICMR).