Light from smartphones may lessen your sleep quality

Agencies
July 30, 2017

Houston, Jul 29: Artificial light emitted from digital devices such smartphones and tablets could reduce the quality of your sleep, a study has warned.

The largest source of blue light is sunlight, but it is also found in most LED-based devices. Blue light boosts alertness and regulates our internal body clock, or circadian rhythm, that tells our bodies when to sleep.

This artificial light activates photoreceptors called intrinsically photosensitive retinal ganglion cells (ipRGCs), which suppresses melatonin, the hormone that signals your body that it is time to sleep.

"The most important takeaway is that blue light at night time really does decrease sleep quality. Sleep is very important for the regeneration of many functions in our body," said Lisa Ostrin, assistant professor at University of Houston in the US.

In the study, participants, aged between 17 and 42, wore short wavelength-blocking glasses three hours before bedtime for two weeks, while still performing their nightly digital routine.

Results showed about a 58 per cent increase in their night time melatonin levels.

"Those levels are even higher than increases from over- the-counter melatonin supplements," said Ostrin, who led the study published in Ophthalmic & Physiological Optics.

Wearing activity and sleep monitors 24 hours a day, the 22 study participants also reported sleeping better, falling asleep faster, and even increased their sleep duration by 24 minutes a night, according to Ostrin.

Ostrin recommends limiting screen time, applying screen filters, wearing computer glasses that block blue light, or use anti-reflective lenses to offset the effects of artificial light at nighttime.

Some devices even include night mode settings that limit blue light exposure.

"By using blue blocking glasses we are decreasing input to the photoreceptors, so we can improve sleep and still continue to use our devices.

That is nice, because we can still be productive at night," Ostrin added.

 

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News Network
June 23,2020

New Delhi, Jun 23: The meeting between Indian Army's 14 Corps Commander Lt Gen Harinder Singh and his Chinese counterpart got over after around 11 hours, sources said.

"Today's meeting between the Corps Commander-level officers of India and China is over. The meeting which started at 11:30 am went on for around 11 hours. More details awaited," sources said.

The meeting started at around 11:30 am at Moldo on the Chinese side of Line of Actual Control (LAC) opposite Chushul to defuse the tensions in Eastern Ladakh sector due to Chinese military build-up, the sources said.

This is the second meeting between the two corps commanders. They had met on June 6 and had agreed to disengage at multiple locations. India had asked the Chinese side to go back to pre-May 4 military positions along the LAC.

The Chinese side had not given any response to the Indian proposal and not even shown intent on the ground to withdraw troops from rear positions where they have amassed over 10,000 troops.

India is also likely to discuss the change in rules of engagement on the LAC where the forces have been empowered to use firearms in extraordinary circumstances, sources had said.

They said India will also ask China to honour the commitment given during June 6 talks to disengage in the Galwan valley completely and other places.

The build-up of Chinese air assets including strategic bombers by the PLA Air Force in fields near Indian territory close to Ladakh is also likely to figure in discussions.

India and China have been involved in talks to ease the ongoing border tensions since last month.

However, last week as many as 20 Indian soldiers lost their lives in the face-off in the Galwan Valley after an attempt by the Chinese troops to unilaterally change the status quo during the de-escalation in eastern Ladakh.

The Indian intercepts have revealed that the Chinese side suffered 43 casualties including dead and seriously injured in the violent clash.

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News Network
January 7,2020

New Delhi, Jan 7: The Delhi Police has filed an FIR against JNUSU president Aishe Ghosh and 19 others for allegedly attacking security guards and vandalising the server room of the Jawaharlal Nehru University (JNU) on January 4.

The police registered the FIR on January 5.

In the complaint filed by the JNU administration, the University alleged that the accused were involved in physical violence and pushed the women guards, verbally abused them and threatened them of dire consequences if they opened the lock of university's communication and information (CIS) office.

"They illegally trespassed the University property with the criminal intention to damage the public property. They damaged servers and made it dysfunctional. They also damaged fiber optic power supplies and broke the biometric systems inside the room," the University officials alleged.

This incident allegedly occurred a day before Aishe Ghosh, other JNU students and teachers were attacked by a masked mob inside the campus.

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News Network
June 23,2020

Jun 23: US President Donald Trump has issued a proclamation to suspend issuing of H-1B visas, which is popular among Indian IT professionals, along with other foreign work visas for the rest of the year.

Trump said the step was essential to help millions of Americans who have lost their jobs due to the current economic crisis.

Issuing the proclamation ahead of the November presidential elections, Trump has ignored the mounting opposition to the order by various business organisations, lawmakers and human rights bodies.

The proclamation that comes into effect on June 24, is expected to impact a large number of Indian IT professionals and several American and Indian companies who were issued H-1B visas by the US government for the fiscal year 2021 beginning October 1.

They would now have to wait at least till the end of the current year before approaching the US diplomatic missions to get stamping. It would also impact a large number of Indian IT professionals who are seeking renewal of their H-1B visas.

“In the administration of our Nation's immigration system, we must remain mindful of the impact of foreign workers on the United States labour market, particularly in the current extraordinary environment of high domestic unemployment and depressed demand for labour,” said the proclamation issued by Trump.

In his proclamation, Trump said that the overall unemployment rate in the United States nearly quadrupled between February and May of 2020 -- producing some of the most extreme unemployment rates ever recorded by the Bureau of Labor Statistics.

While the May rate of 13.3 percent reflects a marked decline from April, millions of Americans remain out of work.

The proclamation also extends till the end of the year his previous executive order that had banned issuing of new green cards of lawful permanent residency.

Green card holders, once admitted pursuant to immigrant visas, are granted "open-market" employment authorisation documents, allowing them immediate eligibility to compete for almost any job, in any sector of the economy, he said.

“American workers compete against foreign nationals for jobs in every sector of our economy, including against millions of aliens who enter the United States to perform temporary work. Temporary workers are often accompanied by their spouses and children, many of whom also compete against American workers,” Trump said.

“Under ordinary circumstances, properly administered temporary worker programmes can provide benefits to the economy. But under the extraordinary circumstances of the economic contraction resulting from the COVID-19 outbreak, certain non-immigrant visa programmes authorising such employment pose an unusual threat to the employment of American workers,” he said.

For example, Trump said, between February and April of 2020, more than 17 million United States jobs were lost in industries in which employers are seeking to fill worker positions tied to H-2B nonimmigrant visas.

“During this same period, more than 20 million United States workers lost their jobs in key industries where employers are currently requesting H-1B and L workers to fill positions,” he said.

“Also, the May unemployment rate for young Americans, who compete with certain J non-immigrant visa applicants, has been particularly high -- 29.9 percent for 16-19-year-olds, and 23.2 percent for the 20-24-year-old group,” he said.

“The entry of additional workers through the H-1B, H-2B, J, and L non-immigrant visa programmes, therefore, presents a significant threat to employment opportunities for Americans affected by the extraordinary economic disruptions caused by the COVID-19 outbreak,” Trump said.

Trump observed that excess labour supply is particularly harmful to workers at the margin between employment and unemployment -- those who are typically "last in" during an economic expansion and "first out" during an economic contraction.

In recent years, these workers have been disproportionately represented by historically disadvantaged groups, including African Americans and other minorities, those without a college degree, and Americans with disabilities, he said.

The proclamation suspends and limits entry into the US of H-1B, H-2B and L visas and their dependents till December 31, 2020. It also includes certain categories of J visas like an intern, trainee, teacher, camp counselor, or summer work travel programme.

The new rule would apply only to those who are outside the US, do not have a valid non-immigrant visa and an official travel document other than a visa to enter the country.

According to the proclamation, it does not have an impact on lawful permanent residents of the United States and foreign nationals who are spouses or child of an American citizen.

Foreign nationals seeking to enter the US to provide temporary labour or services essential to the food supply chain are also exempted from the latest proclamation.

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