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Comment by Dr. Krishna Kumari Challa on June 18, 2020 at 9:36am

Liver perfusion could save 7 in 10 rejected donor livers

https://medicalxpress.com/news/2020-06-liver-perfusion-donor-livers...

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https://medicalxpress.com/news/2020-06-light-activated-crispr-trigg...

Light-activated 'CRISPR' triggers precision gene editing and super-fast DNA repair

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https://theconversation.com/healthier-food-can-contain-more-contami...

Healthier food can contain more contaminants

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https://www.scientificamerican.com/article/slimy-mudflat-biofilms-f...

Slimy Mudflat Biofilms Feed Migratory Birds—and Could Be Threatened

The highly nutritious, shimmering goo is a vital source of energy for long-distance fliers

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https://www.the-scientist.com/the-literature/gut-microbiome-composi...

Gut Microbiome Composition Linked to Human Behavior

A study uncovers connections between the bacteria in our guts and our social lives.

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https://www.asianscientist.com/2020/06/health/east-asian-diabetes-g...

The Unique Genetics Of Diabetes In Asians: Researchers have found 61 new genetic variants that are linked to type 2 diabetes in East Asians, which could help to personalize treatment for the chronic disease.

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https://medicalxpress.com/news/2020-06-scientists-decode-brain.html...

Scientists decode how the brain senses smell

Comment by Dr. Krishna Kumari Challa on June 18, 2020 at 9:33am

https://bigthink.com/surprising-science/female-medical-research?reb...

Science research still focuses mostly on men

In spite of a government mandate, women are often treated as afterthoughts in scientific research. $$

• A new study finds that though more women are included in experiments, sex-specific data often goes un-analyzed.
• Only about a third of studies analyzed published participant breakdown by sex.
• Some researchers say considering women more fully as research subjects is logistically too challenging.

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https://techxplore.com/news/2020-06-photo-longer.html?utm_source=nw...

What jumps out in a photo changes the longer we look at it

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https://medicalxpress.com/news/2020-06-physical-million-early-death...

Physical activity prevents almost four million early deaths worldwide each year

Comment by Dr. Krishna Kumari Challa on June 18, 2020 at 7:09am

Quasar jets are particle accelerators thousands of light-years long

https://phys.org/news/2020-06-quasar-jets-particle-thousands-light-...

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https://phys.org/news/2020-06-lab-space-discovery-molecule-interste...

Discovery of a new organic molecule in an interstellar molecular cloud

Discovery of a new organic molecule in an interstellar molecular cloud: called propargylimine this chemical species may play a fundamental role in the formation of amino acids, among the key ingredients for life as we know it.

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https://pubmed.ncbi.nlm.nih.gov/15610419/

Biotechnology Applied to Cultural Heritage: Biorestoration of Frescoes Using Viable Bacterial Cells and Enzymes

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https://theconversation.com/is-the-k-number-the-new-r-number-what-y...

What you need to know about the K number in epidemiology ....

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** https://theconversation.com/why-are-black-and-asian-people-at-great...

Why are black and Asian people at greater risk of coronavirus? Here’s what we found

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https://theconversation.com/in-the-future-your-phone-could-test-you...

In the future, your phone could test you for coronavirus – here’s how

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Comment by Dr. Krishna Kumari Challa on June 18, 2020 at 6:21am

How Toxoplasma parasites glide so swiftly

Toxoplasma gondii parasites can be transmitted through contaminated food, water or cat feces. Now, scientists have studied how these microscopic parasites glide so swiftly through the body.

https://phys.org/news/2020-06-toxoplasma-parasites-glide-swiftly.ht...

Comment by Dr. Krishna Kumari Challa on June 18, 2020 at 6:12am

$$ Study sheds light on a classic visual illusion: this phenomenon relies on brightness estimation that takes place before visual information reaches the brain's visual cortex, possibly within the retina.

https://medicalxpress.com/news/2020-06-classic-visual-illusion.html...

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https://sciencex.com/news/2020-06-schrdinger-cat.html?utm_source=nw...

Schrödinger's cat explained!

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https://phys.org/news/2020-06-expose-powerful-magnetic-fields-after...

Experiments expose how powerful magnetic fields are generated in the aftermath of supernovae

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https://phys.org/news/2020-06-physicists-theory-bose-einstein-conde...

Physicists develop a new theory for Bose-Einstein condensates

Bose-Einstein condensates are often described as the fifth state of matter: At extremely low temperatures, gas atoms behave like a single particle. The exact properties of these systems are notoriously difficult to study.

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Science in Action - The medical complexity of Covid -19 - BBC Sounds

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https://phys.org/news/2020-06-scientists-unusual-underwater-rivers-...

Scientists discover unusual underwater rivers along Australia's coastline

Scientists have discovered underwater rivers along most of Australia's continental shelf that are unique and do not occur at this scale anywhere else in the world.

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https://en.m.wikipedia.org/wiki/List_of_chemical_elements_naming_co...

List of chemical elements naming controversies

Comment by Dr. Krishna Kumari Challa on June 17, 2020 at 8:47am

Why Do People Avoid Facts That Could Help Them?

Several studies suggest that individuals widely prefer to remain ignorant about information that would benefit them when it’s painful—and sometimes when it’s pleasurable

https://www.scientificamerican.com/article/why-do-people-avoid-fact...

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https://www.scientificamerican.com/article/specially-shaped-artific...

Specially Shaped Artificial Particles Detoxify Blood

Camouflaged nanoparticles can soak up toxins like red bloods cells do 

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https://www.the-scientist.com/news-opinion/in-south-africa-covid-19...

COVID-19 Breath Test Trial Set for June

If proven successful, the five-minute test could be a good temporary indicator before a confirmatory PCR test.

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https://phys.org/news/2020-06-nanosponges-intercept-coronavirus-inf...

Nanosponges could intercept SARS-CoV-2 coronavirus infection and neutralize the virus

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https://phys.org/news/2020-06-hard-eggshells-evolved-dinosaur-famil...

New study suggests that hard eggshells evolved at least three times in dinosaur family tree

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https://phys.org/news/2020-06-knock-knock-coral-symbiotic-algae.htm...

 How coral let symbiotic algae in

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Soap bubbles pollinated a pear orchard without damaging delicate flowers: Soap bubbles may present a low-tech complement to robotic pollination technology designed to supplement the work of vanishing bees.

https://phys.org/news/2020-06-soap-pollinated-pear-orchard-delicate...

Comment by Dr. Krishna Kumari Challa on June 17, 2020 at 8:27am

How deadly is the coronavirus? Scientists are close to an answer

Public-health researchers use the infection fatality rate to gauge how to respond to a new disease, but it’s tricky to calculate.

Researchers use a metric called infection fatality rate (IFR) to calculate how deadly a new disease is. It is the proportion of infected people who will die as a result, including those who don’t get tested or show symptoms.

“The IFR is one of the important numbers alongside the herd immunity threshold, and has implications for the scale of an epidemic and how seriously we should take a new disease.

Calculating an accurate IFR is challenging in the midst of any outbreak because it relies on knowing the total number of people infected — not just those who are confirmed through testing. But the fatality rate is especially difficult to pin down for COVID-19.

That’s partly because there are many people with mild or no symptoms, whose infection has gone undetected, and also because the time between infection and death can be as long as two months. Many countries are also struggling to count all their virus-related deaths, he says. Death records suggest that some of those are being missed in official counts.

Data from early in the pandemic overestimated how deadly the virus was, and then later analyses underestimated its lethality. Now, numerous studies — using a range of methods — estimate that in many countries some 5 to 10 people will die for every 1,000 people with COVID-19. “The studies I have any faith in are tending to converge around 0.5–1%,” says Russell.

But some researchers say that convergence between studies could just be coincidence. For a true understanding of how deadly the virus is, scientists need to know how readily it kills different groups of people. The risk of dying from COVID-19 can vary considerably depending on age, ethnicity, access to healthcare, socioeconomic status and underlying health conditions. More high-quality surveys of different groups are needed, these researchers say.

IFR is also specific to a population and changes over time as doctors get better at treating the disease, which can further complicate efforts to pin it down.

Getting the number right is important because it helps governments and individuals to determine appropriate responses.

https://www.nature.com/articles/d41586-020-01738-2?utm_source=Natur...

Comment by Dr. Krishna Kumari Challa on June 17, 2020 at 8:08am

Do you know your behaviour on social media could be limiting the quality of your news feeds?

More than half the world's population use social media to keep up with the latest news and find a source of truth. But are they getting the facts and the right information? NO!

Some content is hidden from you while some news is made available to you based on your ‘mental make up’. So you are made to believe only a part of the world that suits you exist and that you are on the right path to seek it!

A lot of people may be unaware of the extent their news feed is altered by the click of a button when they dislike a post, or opt to see less of something on their news feed.

Throughout social media, a series of complex algorithms are in place to keep users engaged and visiting social media sites as long as possible. They want the user to have the feeling of 'you're right' so content is tailored to that person. This creates an environment of like-minded users who reinforce that person's opinions rather than providing balanced information.

So experts are making specific recommendations to empower individuals online, drawing on two approaches from behavioural sciences: nudging and boosting.

Nudging aims to steer people's behaviour by highlighting important information without imposing rules or bans. Nudging could be used, for example, to indicate whether content meets certain quality criteria—such as whether it stems from trustworthy sources.

Some sites recently took a step in this direction and started flagging some tweets with a fact-check warning.

The researchers say another possibility would be to make it more difficult for users to share information when an article fails to cite external references. For example, users might be required to click past a pop-up window.

Another option is what is called boosting, to enhance user competence in the long-term. This could, for instance, mean teaching people to determine the quality of a news item by looking at a set of variables, such as the sources being cited, that determine its likely quality.

It 's important to strengthen the Internet's potential to inform decision-making processes in democratic societies, bolstering them rather than undermining them.

'It's important for people to have autonomy to be able to control the content they receive, but at the same time be aware of the trustworthiness of their feeds and have more control over what information is provided.

https://techxplore.com/news/2020-06-behaviour-social-media-limiting...

Comment by Dr. Krishna Kumari Challa on June 17, 2020 at 7:16am

Feel the beat: implanted microlasers scan heart from inside

https://phys.org/news/2020-06-implanted-microlasers-scan-heart.html...

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https://phys.org/news/2020-06-smallest-motor-world.html?utm_source=...

The smallest motor in the world which consists of only 16 atoms and rotates reliably in one direction. It could allow energy harvesting at the atomic level.

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https://phys.org/news/2020-06-ideas-dark.html?utm_source=nwletter&a...

New ideas in the search for dark matter

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https://phys.org/news/2020-06-button-particles.html?utm_source=nwle...

A 'pause button' for light particles: Scientists are attempting the seemingly impossible: stopping light for tiny fractions of a second ... the researchers are even stopping individual light particles.

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https://phys.org/news/2020-06-hurricane-season-combined-covid-pande...

Hurricane season combined with COVID-19 pandemic could create perfect storm

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https://phys.org/news/2020-06-coal-burning-siberia-climate-million-...

Coal-burning in Siberia led to climate change 250 million years ago that led to massive extinctions

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https://phys.org/news/2020-06-life.html?utm_source=nwletter&utm...

Instruments aboard future space missions are capable of detecting amino acids, fatty acids and peptides, and can even identify ongoing biological processes on ocean moons in our solar system.

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https://phys.org/news/2020-06-sunlight-satellites-fate-space-junk.h...

Using sunlight to save satellites from a fate of 'space junk'

Comment by Dr. Krishna Kumari Challa on June 17, 2020 at 6:21am

Could the cure for Irritable Bowel Disease be inside your mouth?

From heart disease to diabetes, poor oral health is often a reflection of a person's overall health and may even be the cause of systemic disease

A new collaborative study from the U-M Medical and Dental Schools reveals that inflammatory bowel disease (IBD), which included Crohn's disease and ulcerative colitis and afflicts millions of adults around teh world, may be the latest condition made worse by poor oral health. The team has been studying the gut microbiome—the collection of bacteria that are normally present in the gut— for years. It noted an emerging link in research literature between an overgrowth of foreign bacterial species in the guts of people with IBD—bacteria that are normally found in the mouth. 

The new mouse study, published in Cell, shows two pathways by which oral bacteria appear to worsen gut inflammation.

In the first pathway, periodontitis, the scientific name for gum disease, leads to an imbalance in the normal healthy microbiome found in the mouth, with an increase of bacteria that cause inflammation. These disease-causing bacteria then travel to the gut.

However, this alone may not be enough to set off gut inflammation. The team demonstrated that oral bacteria may aggravate gut inflammation by looking at microbiome changes in mice with inflamed colons.

The normal gut microbiome resists colonization by exogenous, or foreign, bacteria. However, in mice with IBD, the healthy gut bacteria are disrupted, weakening their ability to resist disease-causing bacteria from the mouth." The team found that mice with both oral and gut inflammation had significantly increased weight loss and more disease activity.

In the second proposed pathway, periodontitis activates the immune system's T cells in the mouth. These mouth T cells travel to the gut where they, too, exacerbate inflammation. The gut's normal microbiome is held in balance by the action of inflammatory and regulatory T cells that are fine-tuned to tolerate the resident bacteria. But oral inflammation generates mostly inflammatory T cells that migrate to the gut, where they, removed from their normal environment, end up triggering the gut's immune response, worsening disease.

"This exacerbation of gut inflammation driven by oral organisms that migrate to the gut has important ramifications in emphasizing to patients the critical need to promote oral health as a part of total body health and wellbeing. This study importantly implies that clinical outcomes in IBD may be improved by monitoring oral inflamation—an intriguing concept.

"The intermucosal connection between the mouth and gut in commensal pathobiont-driven colitis," Cell, DOI: 10.1016/j.cell.2020.05.048

https://medicalxpress.com/news/2020-06-ibd-mouth.html?utm_source=nw...

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