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PhD Research
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Mothers can pass traits to their offspring through bacteria's DNA, mouse study shows

Mothers can pass traits to their offspring through bacteria's DNA, mouse study shows | PhD Research | Scoop.it

Researchers at Washington University School of Medicine in St. Louis has shown that the DNA of bacteria that live in the body can pass a trait to offspring in a way similar to the parents' own DNA. According to the authors, the discovery means scientists need to consider a significant new factor -- the DNA of microbes passed from mother to child -- in their efforts to understand how genes influence illness and health. The study appears online Feb. 16 in Nature.


Bacteria are most familiar through their roles in harmful infections. But scientists have realized that such bacteria are only a tiny fraction of the bacterial communities that live in and on our bodies. Most bacteria are commensal, which means they do not cause harm and often confer benefits.


Commensal bacteria influence traits such as weight and behavior. But until now, researchers thought the bacteria that exerted these effects were acquired during a person's life. The study is the first to show that bacterial DNA can pass from parent to offspring in a manner that affects specific traits such as immunity and inflammation.


The researchers linked commensal bacteria in mice to the animals' susceptibility to a gut injury. Mice with certain inherited bacteria are susceptible to the injury, which is caused by exposure to a chemical. Female mice pass the bacteria to their offspring, making them vulnerable to the injury. Others carrying different bacteria are less susceptible.


In several fields of research, scientists have been confronted intermittently with the sudden, unexplained appearance of new or altered traits in mice. The traits often spread from one mouse habitat to the next, suggesting a spreading microbial infection is responsible. But the traits also consistently pass from mother to offspring, suggesting a genetic cause.


Thaddeus Stappenbeck, MD, PhD, a professor of pathology and immunology, and co-senior author Virgin, the Edward Mallinckrodt Professor of Pathology and head of the Department of Pathology and Immunology, encountered this problem in their studies of inflammatory bowel diseases, such as Crohn's disease and ulcerative colitis. They were surprised to find that roughly half their mice had low levels in the gut of IgA, an antibody linked to these disorders.


IgA helps defend the body against harmful invaders. It is commonly present in mucus made by the body in areas where the exterior world encounters the body's interior, such as the eyes, nose, throat and gut. When the scientists housed mice with low levels of the antibody with mice that had high levels of the antibody, all of the mice ended up with low antibody levels in a few weeks. When they bred the mice, the offspring whose mothers had low levels of the antibody also had low levels.


Eventually, the scientists learned that one of the culprits likely responsible for the spread of low antibody levels is a bacterium called Sutterella. This bacterium and others found in the low-IgA mice could explain both ways that decreased antibody levels were spreading: Mice that were housed together acquired low antibody levels through normal spread of the bacteria, and mouse mothers passed the same bacteria to their descendants.


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Here's Why the Technological Singularity is Going to Happen

Here's Why the Technological Singularity is Going to Happen | PhD Research | Scoop.it

Here's one quick way the technological singularity, strong AI (or "artificial general intelligence") could happen, to convince even the most skeptical of readers that it is absolutely possible.


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Virtual-Reality Porn Is Coming, and Your Fantasies May Never Be the Same | WIRED

Virtual-Reality Porn Is Coming, and Your Fantasies May Never Be the Same | WIRED | PhD Research | Scoop.it

You’re not watching a scene anymore; you’re inhabiting it. And by being there, you’re implicated in whatever’s happening.


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Helping Students Fail: A Framework

Helping Students Fail: A Framework | PhD Research | Scoop.it

"As teachers, allowing students to see failure as a negative experience is one of the worst things we can do.

Granted, this isn’t unique to education. The idea of risk-taking, failing, looking, leaping, try-try-again is ingrained in our cultural DNA. But in education, we certainly have made it dramatic. In fact, we don’t even need the whole word anymore. Failure erodes to fail, which itself erodes to simply F..."


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Beth Dichter's curator insight, February 5, 5:46 PM

In education we many students are told they have "failed" yet as teachers we know that making mistakes is the norm. Engineers look at failures as a way to learn. What can we do in education?

This post explores:

* What does it mean to "fail"?

* The role of failure in learning

* Helping Students Fail: A Framework which has four sections, each of which provides "the idea" and guiding questions.

Where can you start as a teacher?

* By clarifying the meaning

* By providing context

* By designing transparent processes

* By illuminating progress

Students need to learn that a "failure" is not the end of the road, but a stop on a journey. As teachers this post provides a number of suggestions that may help us better meet the needs of our students and help them see failure in a different light.

Art Lang's curator insight, February 5, 8:56 PM

Do you think helping students fail will facilitate better learning?

luc taesch's curator insight, February 7, 6:14 AM
failing is earning.
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What Your Smartphone Is Doing To Your Body & Mind

What Your Smartphone Is Doing To Your Body & Mind | PhD Research | Scoop.it

On average, people pick up their smartphone 221 times a day to do things with it. It's no secret that we are getting more and more addicted to these handsets, but have you wondered what effect that is having on your mind and your body? Scientists are definitely curious and have a few ideas


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Nik Peachey's curator insight, January 19, 8:28 AM

A short light article but with lots of links to research data.


faith ward's curator insight, January 24, 8:39 AM

Research data in the article is very interesting. 

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Nanoscale mirrored cavities amplify, connect quantum memories

Nanoscale mirrored cavities amplify, connect quantum memories | PhD Research | Scoop.it

Nanowerk is the leading nanotechnology portal, committed to educate, inform and inspire about nanotechnologies, nanosciences, and other emerging technologies


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The Science of Storytelling

The Science of Storytelling | PhD Research | Scoop.it

Many studies show us that our brains prefer storytelling to facts.When we read facts, only the language parts of our brains work to understand the meaning. When we read a story, the language parts of our brains and any other part of the brain that we would use if we were actually experiencing what we’re reading, light up.This means that it’s easier for us to remember stories than facts. Our brains can't make major distinctions between a story we’re reading about and something we are actually doing....


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Maria Persson's curator insight, September 30, 2014 6:49 PM

Something about telling our stories can often keep us in loops of despair and darkness but in sharing them these clouds can often lift and lead to empowerment and engagement with the world around us again!

 

This is a great infographic suggesting how physiological aspects are affected by storytelling...believe it or not - do the research and make your own mind up!

 

Commercial aspects aside and the idea of branding, how could this concept work in  educational environments? Need to give this more thought...ideas anyone - very welcome!

ManufacturingStories's curator insight, October 1, 2014 3:55 PM

For more resources on STEM Education visit http://bit.ly/1640Tbl

Ricard Garcia's curator insight, October 3, 2014 2:02 AM

One more proof to show how important storytelling may be!

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The Near Future Of Implantable Technology - YouTube

Jennifer French is the 2012 Rolex Yachtswoman of the Year, a silver medalist in sailing, and a quadriplegic. She is the first woman to receive the implanted ...


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Remote-controlled cyborg moth ‘biobots’ to monitor emergency-response operations | KurzweilAI

Remote-controlled cyborg moth ‘biobots’ to monitor emergency-response operations | KurzweilAI | PhD Research | Scoop.it

North Carolina State University researchers have developed methods for electronically manipulating the flight muscles of moths and for monitoring the electrical signals that moths use to control those muscles. The goal: remotely-controlled moths, or “biobots,” for use in emergency response, such as search and rescue operations.

“The idea would be to attach sensors to moths … to create a flexible, aerial sensor network that can identify survivors or public health hazards in the wake of a disaster,” said Alper Bozkurt, PhD, an assistant professor of electrical and computer engineering at NC State and co-author of a JOVE paper on the work.

Bozkurt, with Amit Lal, PhD, of Cornell University, previously developed a method for attaching electrodes to a moth during its pupal stage, when the caterpillar is in a cocoon undergoing metamorphosis. Now, Bozkurt’s research team wants to find out precisely how a moth coordinates its muscles during flight.


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Humans With Amplified Intelligence Could Be More Powerful Than AI

Humans With Amplified Intelligence Could Be More Powerful Than AI | PhD Research | Scoop.it

With much of our attention focused the rise of advanced artificial intelligence, few consider the potential for radically amplified human intelligence (IA). It’s an open question as to which will come first, but a technologically boosted brain could be just as powerful — and just as dangerous – as AI.

 

As a species, we’ve been amplifying our brains for millennia. Or at least we’ve tried to. Looking to overcome our cognitive limitations, humans have employed everything from writing, language, and meditative techniques straight through to today’s nootropics. But none of these compare to what’s in store. Unlike efforts to develop artificial general intelligence (AGI), or even an artificial superintelligence (SAI), the human brain already presents us with a pre-existing intelligence to work with. Radically extending the abilities of a pre-existing human mind — whether it be through genetics, cybernetics or the integration of external devices — could result in something quite similar to how we envision advanced AI.

 

Looking to learn more about this, I contacted futurist Michael Anissimov, a blogger atAccelerating Future and a co-organizer of the Singularity Summit. He’s given this subject considerable thought — and warns that we need to be just as wary of IA as we are AI. The real objective of IA is to create super-Einsteins, persons qualitatively smarter than any human being that has ever lived. There will be a number of steps on the way there.

 

The first step will be to create a direct neural link to information. Think of it as a "telepathic Google." The next step will be to develop brain-computer interfaces that augment the visual cortex, the best-understood part of the brain. This would boost our spatial visualization and manipulation capabilities. Imagine being able to imagine a complex blueprint with high reliability and detail, or to learn new blueprints quickly. There will also be augmentations that focus on other portions of sensory cortex, like tactile cortex and auditory cortex. The third step involves the genuine augmentation of pre-frontal cortex. This is the Holy Grail of IA research — enhancing the way we combine perceptual data to form concepts. The end result would be cognitive super-McGyvers, people who perform apparently impossible intellectual feats. For instance, mind controlling other people, beating the stock market, or designing inventions that change the world almost overnight. This seems impossible to us now in the same way that all our modern scientific achievements would have seemed impossible to a stone age human — but the possibility is real.

 

For it to be otherwise would require that there is some mysterious metaphysical ceiling on qualitative intelligence that miraculously exists at just above the human level. Given that mankind was the first generally intelligent organism to evolve on this planet, that seems highly implausible. We shouldn't expect version one to be the final version, any more than we should have expected the Model T to be the fastest car ever built.

 


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IBM Scientists Show Blueprints for Brain like Computing | MIT Technology Review

IBM Scientists Show Blueprints for Brain like Computing | MIT Technology Review | PhD Research | Scoop.it

IBM researchers unveil TrueNorth, a new computer architecture that imitates how a brain works.

 Using simulations of enormous complexity, they show that the architecture, named TrueNorth, could lead to a new generation of machines that function more like biological brains.

 


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IT's curator insight, August 14, 2013 5:57 PM

"Učíme se z dat. Nemáme předem algoritmy. Jsme schopni dělat předpovědi i v situacích, které jsme nikdy nezažili." A samozřejmě přesně při těchto procesech některé mozky neustále sledují superpočítače a jejich systémy.

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Animal experiments show it is possible to correct for memory problems with implanted chip - The Mind Uploading Project

Animal experiments show it is possible to correct for memory problems with implanted chip - The Mind Uploading Project | PhD Research | Scoop.it

Latest experiments show how a silicon chip externally connected to rat and monkey brains by electrodes can process information just like actual neurons. Scientist demonstrated that they could also help monkeys retrieve long-term memories from a part of the brain that stores them.


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IT's curator insight, August 14, 2013 7:43 PM

Moc by mě zajímalo jestli si taková krysa vzpomene, že jí bylo líp bez toho, aby si pamatovala celou kuchařku nebo věděla kde je mapa podzemí Londýna, která je jí stejně na nic.

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How Instagram Remade Photography (And Could Do The Same For Video) - ReadWrite

How Instagram Remade Photography (And Could Do The Same For Video) - ReadWrite | PhD Research | Scoop.it
ReadWrite How Instagram Remade Photography (And Could Do The Same For Video) ReadWrite When the Chicago Sun-Times, a daily newspaper with 65 years of history, decided last month to dissolve its photography department, it announced that as a...

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The Face Detection Algorithm Set To Revolutionise Image Search | MIT Technology Review

The Face Detection Algorithm Set To Revolutionise Image Search | MIT Technology Review | PhD Research | Scoop.it

The ability to spot faces from any angle, and even when partially occluded, has always been a uniquely human capability. Not any more.


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Japanese scientists can read dreams in breakthrough with MRI scans

Japanese scientists can read dreams in breakthrough with MRI scans | PhD Research | Scoop.it

Japanese scientists find way to use magnetic resonance imaging to unravel nighttime visions of unconscious mind in breakthrough study


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A Machine That Trains Your Brain to Pay Attention

A Machine That Trains Your Brain to Pay Attention | PhD Research | Scoop.it
A new brain-scanning technique could change the way scientists think about human focus.

Human attention isn’t stable, ever, and it costs us: lives lost when drivers space out, billions of dollars wasted on inefficient work, and mental disorders that hijack focus. Much of the time, people don’t realize they’ve stopped paying attention until it’s too late. This “flight of the mind,” as Virginia Woolf called it, is often beyond conscious control.

So researchers at Princeton set out to build a tool that could show people what their brains are doing in real time, and signal the moments when their minds begin to wander. And they've largely succeeded, a paper published today in the journal Nature Neuroscience reports. The scientists who invented this attention machine, led by professor Nick Turk-Browne, are calling it a “mind booster.” It could, they say, change the way we think about paying attention—and even introduce new ways of treating illnesses like depression.

Here’s how the brain decoder works: You lie down in an a functional magnetic resonance imaging machine (fMRI)—similar to the MRI machines used to diagnose diseases—which lets scientists track brain activity. Once you're in the scanner, you watch a series of pictures and press a button when you see certain targets. The task is like a video game—the dullest video game in the world, really, which is the point. You see a face, overlaid atop an image of a landscape. Your job is to press a button if the face is female, as it is 90 percent of the time, but not if it’s male. And ignore the landscape. (There’s also a reverse task, in which you’re asked to judge whether the scene is outside or inside, and ignore the faces.)


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The Question Game: A Playful Way To Teach Critical Thinking

The Question Game: A Playful Way To Teach Critical Thinking | PhD Research | Scoop.it

"Big idea: Teaching kids to ask smart questions on their own

A four-year-old asks on average about 400 questions per day, and an adult hardly asks any. Our school system is structured around rewards for regurgitating the right answer, and not asking smart questions – in fact, it discourages asking questions. With the result that as we grow older, we stop asking questions. Yet asking good questions is essential to find and develop solutions, and an important skill in innovation, strategy, and leadership. So why do we stop asking questions – and more importantly, why don’t we train each other, and our future leaders, to ask the right questions starting from early on?"

 


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Kym Reinstadler, SCN Feature Writer's curator insight, February 8, 10:18 PM

A four-year-old asks, on average, 400 questions a day. By the time he or she reaches adulthood, they will ask very few per day. Speaking as someone who’s probably never going to grow up, allow me to emphasize that:

  • Why questions help to find the root of a problem
  • What If questions open up the floor for creative solutions
  • How questions focus on developing practical solutions
Arizona State University, Claire McLaughlin's curator insight, February 9, 11:11 AM

Anything that gives students a chance to ask their own questions is a good idea in my opinion.  When the questions invoke critical thinking, it's a double bonus!  Also, writing these questions on any pre-made box would work.  No need to be crafty with scissors and tape.

Simon Awuyo's curator insight, February 11, 2:04 PM

The student teachers need these tips to help them cultivate skills of asking probing questions to become better teachers tomorrow.

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Mindclones from Social Media: New Research from Stanford Suggests Feasibility - h+ Magazine

Mindclones from Social Media: New Research from Stanford Suggests Feasibility - h+ Magazine | PhD Research | Scoop.it

In popular sci-fi show 'Black Mirror', realistic digital personalities of the dead, mind clones, are recreated from data alone. How realistic is this idea?


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Can LSD Make You A Billionaire?

Can LSD Make You A Billionaire? | PhD Research | Scoop.it

According to an insider interview of an entrepreneur from Silicone Valley, all the billionaires with cutting edge ideas use LSD frequently as a way to gain advanced insights.


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The Selfie Syndrome- Great Visual ~ Educational Technology and Mobile Learning

The Selfie Syndrome- Great Visual ~ Educational Technology and Mobile Learning | PhD Research | Scoop.it
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Lucid Dreaming is a Key to Incredible Intelligence

Lucid Dreaming is a Key to Incredible Intelligence | PhD Research | Scoop.it

Lucid dreaming is a sign of incredible intelligence and problem-solving skills in waking life, new research shows


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Brain Implants Could Help Alzheimer’s and Others with Severe Memory Damage | MIT Technology Review

Brain Implants Could Help Alzheimer’s and Others with Severe Memory Damage | MIT Technology Review | PhD Research | Scoop.it
A maverick neuroscientist believes he has deciphered the code by which the brain forms long-term memories.

 

Theodore Berger, biomedicínský inženýr a neurolog v Los Angeles, si budoucnost pacientů s těžkou poruchou paměti představuje tak, že jí bude moci opět získat pomoc z elektronického implantátu. U lidí, jejichž mozek utrpěl poškození, mrtvici nebo Alzheimerova chorobu, narušení neuronální sítě často brání vytváření dlouhodobých vzpomínek. Již více než dvě desetiletí, Berger navrhuje křemíkové čipy napodobující signály, který tyto neurony vytvářeli, když řádně fungovali. 


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False Memories in Mice | MIT Technology Review

False Memories in Mice | MIT Technology Review | PhD Research | Scoop.it
Researchers manipulate mouse neurons to create a false memory; the work could lead to a better understanding of how memories form.

 

Vědci vytvořili falešnou paměť u myší tím, že manipulují neurony, které nesou vzpomínku. Práce dále ukazuje, jak nespolehlivá paměť může být.

 

Jedním z dlouhodobých cílů práce, je být schopni identifikovat nové metody pro pomoc pacientům s kognitivními poruchami. "Není to protože chceme implantovat některé falešné zkušenosti do lidské mysli, ale protože by mohlo být užitečné, vyvinout nakonec metody ke snížení kognitivní abnormality spojené s psychickými chorobami, jako jsou bludy u pacientů se schizofrenií , "říká Tonegawa.


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IT's curator insight, August 3, 2013 8:05 PM

Bylo by užitečné nedělat ze zdravých lidí pokusné krysy na kterých se snažíte ověřit jestli jimi skutečně nejsou. 

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Microchips That Mimic the Brain - The Mind Uploading Project

Microchips That Mimic the Brain - The Mind Uploading Project | PhD Research | Scoop.it

Researchers developed a neuromorphic system that can carry out complex sensorimotor tasks in real time. They demonstrate a task that requires a short-term memory and context-dependent decision-making.

They combined neuromorphic neurons into networks that implemented neural processing modules equivalent to so-called "finite-state machines". Behavior can be formulated as a "finite-state machine" and thus transferred to the neuromorphic hardware in an automated manner.

 

 

http://www.nanowerk.com/news2/biotech/newsid=31475.php#ixzz2bo1BJ4cn


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IT's curator insight, August 14, 2013 9:07 PM

Vědci tedy ukazují poprvé, jak může být v reálném čase hardware nervový systém pro zpracování, kde uživatel určuje na jakém chování má být postavený. Jsem uživatelem klasického NS jenž si sám vystačí, ovšem někdy je zcela klidně řízen superpočítačem nebo AmI.

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Will technology kill handwriting? | Digital Trends

Will technology kill handwriting? | Digital Trends | PhD Research | Scoop.it
The recent closing of Georgia Bureau of Investigation's Handwriting Analysis Unit has led us to question the future of handwriting in a digital age.
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