Just a few phone calls could prevent suicide attempts: study

May 8, 2017

Washington, May 8: A few phone calls to people who have suicidal tendencies could significantly reduce future suicide attempts and save many lives, a new study has found. Researchers at the University of Colorado Anschutz Medical Campus and Brown University in the US found that phone calls to suicidal patients following discharge from Emergency Departments led to a 30 per cent reduction in future suicide attempts.

suicideThe year-long trial, which involved 1,376 patients across US, provided suicidal patients with interventions that included specialised screening, safety planning guidance and follow-up telephone calls. "People who are suicidal are often disconnected and socially isolated," said Michael Allen, professor at the CU Anschutz.

"So any positive contact with the world can make them feel better," said Allen. Suicide is the 10th leading cause of death in the US. Over one million people attempt to take their own life every year. Allen said simply handing a suicidal patient a psychiatric referral when discharged is not enough.

"We call them up to seven times to check on them after discharge," said Allen. "If they aren't there we leave a message and call again. For many, this telephone call is all they get," he said. "We don't need more brick and mortar buildings, we can reduce suicide risk by simply calling people on the phone," Allen said.

"Telephone follow-up programs offer a great way to help bridge an ED visit to outpatient mental health care and hopefully save lives," said Emmy Betz, an associate professor at CU Anschutz. The trial took place in three phases to create three comparison groups. In the first phase, 497 patients received each ED's usual treatment as a control group.

In phase two universal screening was implemented and 377 patients received additional attention in the ED. In the third phase, 502 patients received the experimental intervention. Those patients received the same Phase 2 care including additional suicide screening from ED physicians, suicide prevention information from nurses and a personal safety plan they could fill out to prepare for times when they might begin harbouring suicidal thoughts again.

Over the next year, they also received periodic phone calls from trained providers, who would discuss suicide risk factors, personal values and goals, safety and future planning, treatment engagement, and problem solving.

The number of suicide attempts and the proportion of people attempting suicide declined significantly in the intervention group compared to treatment as usual. The middle group, which received only additional screening, did not show a significant drop compared to the treatment as usual group. "This is a remarkably low cost, low tech intervention that has achieved impressive results," Allen said.

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July 2,2020

Leiden, Jul 2: Astronomers have discovered a luminous galaxy caught in the act of reionizing its surrounding gas only 800 million years after the Big Bang.

The research, led by Romain Meyer, PhD student at UCL in London, UK, has been presented at the virtual annual meeting of the European Astronomical Society (EAS).

Studying the first galaxies that formed 13 billion years ago is essential to understanding our cosmic origins. One of the current hot topics in extragalactic astronomy is 'cosmic reionization,' the process in which the intergalactic gas was ionized (atoms stripped of their electrons).

Cosmic reionization is similar to an unsolved murder: We have clear evidence for it, but who did it, how and when? We now have strong evidence that hydrogen reionization was completed about 13 billion years ago, in the first billion years of the universe, with bubbles of ionized gas slowly growing and overlapping.

The objects capable of creating such ionized hydrogen bubbles have however remained mysterious until now: the discovery of a luminous galaxy in which 60-100 percent of ionizing photons escape, is likely responsible for ionizing its local bubble. This suggests the case is closer to being solved.

The two main suspects for cosmic reionization are usually 1) a population of numerous faint galaxies leaking ~10 percent of their energetic photons, and 2) an 'oligarchy' of luminous galaxies with a much larger percentage (>50 percent) of photons escaping each galaxy.

In either case, these first galaxies were very different from those today: galaxies in the local universe are very inefficient leakers, with only <2-3 percent of ionizing photons escaping their host. To understand which galaxies governed cosmic reionization, astronomers must measure the so-called escape fractions of galaxies in the reionization era.

The detection of light from excited hydrogen atoms (the so-called Lyman-alpha line) can be used to infer the fraction of escaping photons. On the one hand, such detections are rare because reionization-era galaxies are surrounded by neutral gas which absorbs that signature hydrogen emission.

On the other hand, if this hydrogen signal is detected it represents a 'smoking gun' for a large ionized bubble, meaning we have caught a galaxy reionizing its surroundings. The size of the bubble and the galaxy's luminosity determines whether it is solely responsible for creating this ionized bubble or if unseen accomplices are necessary.

The discovery of a luminous galaxy 800 million years after the Big Bang supports the scenario where an 'oligarchy' of bright leakers emits most of the ionizing photons.

"It is the first time we can point to an object responsible for creating an ionized bubble, without the need for a contribution from unseen galaxies.

Additional observations with the upcoming James Webb Space Telescope will enable us to study further what is likely one of the best suspects for the unsolved case of cosmic reionization," said Meyer.

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February 23,2020

Google has indexed invite links to private WhatsApp group chats, meaning anyone can join various private chat groups (including several porn-sharing groups) with a simple search.

According to a report in Motherboard, invitations to WhatsApp group chats were being indexed by Google.

The team found private groups using specific Google searches and even joined a group intended for NGOs accredited by the UN and had access to all the participants and their phone numbers.

Journalist Jordan Wildon said on Twitter that he discovered that WhatsApp's "Invite to Group Link" feature lets Google index groups, making them available across the internet since the links are being shared outside of WhatsApp's secure private messaging service.

"Your WhatsApp groups may not be as secure as you think they are," Wildon tweeted on Friday, adding that using particular Google searches, people can discover links to the chats.

According to app reverse-engineer Jane Wong, Google has around 470,000 results for a simple search of "chat.whatsapp.com", part of the URL that makes up invites to WhatsApp groups.

WhatsApp spokesperson Alison Bonny said: "Like all content that is shared in searchable public channels, invite links that are posted publicly on the internet can be found by other WhatsApp users."

"The links that users wish to share privately with people they know and trust should not be posted on a publicly accessible website," Bonny told The Verge.

Danny Sullivan, Google's public search liaison, tweeted: "Search engines like Google & others list pages from the open web. That's what's happening here. It's no different than any case where a site allows URLs to be publicly listed. We do offer tools allowing sites to block content being listed in our results."

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March 14,2020

New Delhi, Mar 14: Excise duty on petrol and diesel was on Saturday hiked by ₹3 per litre as the government looked to mop up gains arising from fall in international oil prices.

Special excise duty on petrol was hiked by ₹2 to ₹8 per litre incase of petrol and to Rs 4 incase of diesel, an official notification said.

Additionally, road cess on petrol was raised by ₹1 per litre each on petrol and diesel to ₹10.

The increase in excise duty would in normal course result in a hike in petrol and diesel prices but most of it would be adjusted against the fall in rates that would have necessitated because of slump in international oil prices.

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