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C. elegans Can Pass a Trait Down for 100 Generations…Without #DNA ! Mysteries of the #Universe

C. elegans Can Pass a Trait Down for 100 Generations…Without #DNA ! Mysteries of the #Universe | Limitless learning Universe | Scoop.it

C. elegans worms whose grandparents had the ability to fight viruses using a fleet of tiny RNA molecules retain these molecules even when they don’t have the genes for them. They can pass these molecules down for more than a hundred generations.

 

A research team engineered worms that didn’t have the genes to make the RNAs—which work by inhibiting the virus replication machinery—and then bred them with worms that did for several generations. They ended up with some worms whose ancestors had had the virus-fighting molecules, but did not themselves possess the necessary genes. The team then watched these worms under the microscope and saw that they still attacked viruses in exactly the same way as their grandparents.

 

Numerous control experiments confirmed that the effect was real, and only happened in worms who had ancestors with the genes. The researchers collected all the various RNA molecules in these worms and saw that indeed, they possessed the virus-fighting variety.After about three generations, the effect seemed to wear off; most worms without the genes stopped being able to attack viruses. But for some worms, it never stopped. The team bred those worms for more than one hundred generations, nearly a year, and the creatures never flagged in their ability to defend themselves.

 

How is this possible? The team keeps mum on any ideas of how this inheritance works. But they do uncover some tantalizing details that give us room for speculation. One possibility is that the RNA molecules made by the original worms in response to a virus attack were floating around in the cytoplasm of the eggs and sperm that became their offspring. If that’s the case, then the offspring are basically using their parents’ leftovers, with each generation having a bit less of the original stuff.

 

The researchers mention this possibility of the original RNA being “diluted” with each generation, but don’t, as far as we can tell, try to test that.But what about the worms that hang on to the RNA indefinitely? The researchers found that for that to happen, a particular enzyme that builds RNAs has to be present. Maybe, then, these worms manage to jerry-rig a way to make copies of the virus-fighting RNA with that enzyme (which isn’t part of the usual machinery), even though they lack the gear required to make it in the normal fashion. The gene for that enzyme would then be passed on as normal.


Via Sakis Koukouvis, Dr. Stefan Gruenwald, CineversityTV
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Clean energy generated using #bacteria-powered #solar panel #renewables #science

Clean energy generated using #bacteria-powered #solar panel #renewables #science | Limitless learning Universe | Scoop.it
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Periodic Table's 7th Row Completed With Discovery Of Four New Elements #physics #science

Periodic Table's 7th Row Completed With Discovery Of Four New Elements #physics #science | Limitless learning Universe | Scoop.it

Break out the champagne; the 7th row of the periodic table has been completed with the addition of four new elements.


Via José Gonçalves
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The Pink #Lake Retba is Colored by Halophilic #Cyanobacteria #wonders of #Nature #biology

The Pink #Lake Retba is Colored by Halophilic #Cyanobacteria #wonders of #Nature #biology | Limitless learning Universe | Scoop.it

Lake Retba or Lac Rose lies north of the Cap Vert peninsula of Senegal, north east of Dakar. Depending on the time of day, the lake changes colour from a light purple to a deep scarlet pink. The unusual colouring of the water is caused by harmless halophilic bacteria that thrive in the lake’s high-salinity environment. The color is particularly visible during the dry season.

 

"The strawberry colour is produced by salt-loving organism Dunaliella salina. They produce a red pigment that absorbs and uses the energy of sunlight to create more energy, turning the water pink," said Michael Danson, an expert in bacteria from Britain's Bath University.

 

Covering an area of about 3 sq km, the lake is located about 35km north-east of Senegal’s capital Dakar. Since the 1970s, local residents have been mining Lake Retba for its salt, which they use mainly to preserve fish. Waist-deep in water, the men scrape the bottom of the lake to harvest this universally useful mineral which they collect in baskets in their wooden canoes. The salt is then taken back to shore where it is sectioned into small mounds. Dotted along the lake’s shore, these pristine white hills of salt create an arresting contrast against the pink of the lake. In order to protect their skin from the extreme salinity of the water, the workers rub their skin with shea butter, produced from shea nuts obtained from the Shea nut tree.

 


Via Dr. Stefan Gruenwald
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World's largest #dinosaur footprints discovered in Western #Australia #history

World's largest #dinosaur footprints discovered in Western #Australia #history | Limitless learning Universe | Scoop.it
Newly-discovered prints left by gigantic herbivores are part of a rich collection of tracks belonging to an estimated 21 different types of dinosaur
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#history #Ancient palace complex discovered in Mexican Valley of #Oaxaca #Mexico

#history #Ancient palace complex discovered in Mexican Valley of #Oaxaca #Mexico | Limitless learning Universe | Scoop.it
A pair of archaeologists with the American Museum of Natural History has unearthed a palatial compound in El Palenque's plaza in the Oaxaca Valley in Mexico. In their paper published in Proceedings of the National Academy of Sciences, Elsa Redmond and Charles Spencer describe their work, what they have uncovered and how their findings fit with the emergence of organized states in Mesoamerica.

The Oaxaca Valley near the southern tip of Mexico has been offering up clues of past civilizations for several decades—a team has been working at the El Palenque site in particular since 1993. In this new effort, the researchers focused on a dig on the north end of the plaza—the site of what the researchers believe was the home and business center for the ruler of an ancient empire.

The palace has been dated to approximately 2,100 to 2,300 years ago, a time before the Aztecs. Most in the field believe that the civilization that existed in Oaxaca was among the earliest states to come into existence in Mesoamerica. Redmond and Spencer suggest that their findings at the palace site back up that theory.

Via Mariaschnee
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A description of #immune checkpoint inhibitors #biology #science

A description of #immune checkpoint inhibitors #biology #science | Limitless learning Universe | Scoop.it
Summary, description and timeline in the key events around the development of Immune checkpoint inhibitors

Via Krishan Maggon
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Scientific Study Shows #Meditators Collapsing #Quantum Systems At A Distance #meditation 

Scientific Study Shows #Meditators Collapsing #Quantum Systems At A Distance #meditation  | Limitless learning Universe | Scoop.it
Numerous scientists over many years have studied the role of consciousness and how it can directly influence our physical material world. Large amounts of research have been published which clearly demonstrate that yes, consciousness and what we perceive to be our physical material world are directly intertwined. I will provide more examples of this towards […]
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#CIA hacked #Apple devices in ways users can't fix, #Wikileaks says #tech #privacy #security

#CIA hacked #Apple devices in ways users can't fix, #Wikileaks says #tech #privacy #security | Limitless learning Universe | Scoop.it
New documents from WikiLeaks point to an apparent CIA program to hack Apple's iPhones and Mac computers using techniques that users couldn't disable by resetting their devices.
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#WikiLeaks Reveals How the #CIA Can #Hack a #Mac’s Hidden Code #tech

#WikiLeaks Reveals How the #CIA Can #Hack a #Mac’s Hidden Code #tech | Limitless learning Universe | Scoop.it
The leak shows how physical access hacks can plant undetectable spying code deep in a Macbook's firmware.
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#tech #DoubleAgent: Zero-Day #Code Injection and Persistence Technique #Windows10 #Microsoft #security

#tech #DoubleAgent: Zero-Day #Code Injection and Persistence Technique #Windows10 #Microsoft #security | Limitless learning Universe | Scoop.it
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#Facebook Sued In #apartheid #Israel For Blocking Links To A Site Critical Of The Network #tech #apps #smartphone

#Facebook Sued In #apartheid #Israel For Blocking Links To A Site Critical Of The Network #tech #apps #smartphone | Limitless learning Universe | Scoop.it
A lawsuit has been filed against Facebook in Israel due to the network blocking links to a site that's been critical of the company. The site, Mizbala, is a marketing and creative agency based in Israel. Mizbala made multiple posts critical of Facebook.
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#Chimp filmed cleaning dead son's teeth #care #biology #science #Mind #Soul 

#Chimp filmed cleaning dead son's teeth #care #biology #science #Mind #Soul  | Limitless learning Universe | Scoop.it
(Phys.org)—A trio of researchers from the U.K., the Netherlands and the U.S. has filmed a grown female chimpanzee cleaning her son's teeth after he died. In their paper published in the journal Scientific Reports, Edwi
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New research into #light #particles challenges understanding of #quantum theory #physics #science

New research into #light #particles challenges understanding of #quantum theory #physics #science | Limitless learning Universe | Scoop.it
Scientists have discovered a new mechanism involved in the creation of paired light particles, which could have significant impact on the study of quantum physics.

Researchers at the University of East Anglia (UEA) have shown that when photons - the fundamental particles of light - are created in pairs, they can emerge from different, rather than the same, location.

The ground-breaking research could have significant implications for quantum physics, the theoretical basis of modern physics. Until now, the general assumption was that such photon pairs necessarily originate from single points in space.

Quantum entanglement - when particles are linked so closely that what affects one directly affects the other - is widely used in labs in numerous processes from quantum cryptography to quantum teleportation.

The UEA team were studying a process called spontaneous parametric down-conversion (SPDC), in which photon beams are passed through a crystal to generate entangled pairs of photons.

Prof David Andrews in UEA's School of Chemistry said: "When the emergent pairs equally share the energy of the input, this is known as degenerate down-conversion, or DDC.

"Until now, it has been assumed that such paired photons come from the same location. Now, the identification of a new delocalized mechanism shows that each photon pair can be emitted from spatially separated points, introducing a new positional uncertainty of a fundamental quantum origin."

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The Sky Is Going To Be Sprayed With #Toxic Particles In A #Geoengineering Experiment, Blocking The Sunlight

The Sky Is Going To Be Sprayed With #Toxic Particles In A #Geoengineering Experiment, Blocking The Sunlight | Limitless learning Universe | Scoop.it
Information Society website and facebook page bring all the news from many different sources to an unique place where people can place their opinions and get involved with everything that is happening around the globe.
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#VATICAN IN AWE: 1500 Year Old #Bible Confirms that #Jesus #Christ Was Not Crucified #history

#VATICAN IN AWE: 1500 Year Old #Bible Confirms that #Jesus #Christ Was Not Crucified #history | Limitless learning Universe | Scoop.it
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Scientists have created 'immortal' cells that could allow them to make artificial blood | #Research #Medicine #biology

Scientists have created 'immortal' cells that could allow them to make artificial blood | #Research #Medicine #biology | Limitless learning Universe | Scoop.it
Researchers have developed a line immortal stem cells that allow them to generate an unlimited supply of artificial red blood cells on demand.

If these artificial blood cells pass clinical trials, they'll be far more efficient for medical use than current red blood cell products, which have to be generated from donor blood — and would be a huge deal for patients with rare blood types, who often struggle to find matching blood donors.

 

Learn more / En savoir plus / Mehr erfahren:

 

http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?&tag=Blood

 


Via Gust MEES
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Gust MEES's curator insight, March 28, 6:37 PM
Researchers have developed a line immortal stem cells that allow them to generate an unlimited supply of artificial red blood cells on demand.

If these artificial blood cells pass clinical trials, they'll be far more efficient for medical use than current red blood cell products, which have to be generated from donor blood — and would be a huge deal for patients with rare blood types, who often struggle to find matching blood donors.

 

Learn more / En savoir plus / Mehr erfahren:

 

http://www.scoop.it/t/21st-century-innovative-technologies-and-developments/?&tag=Blood

 

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#Wikileaks’ #Vault7 proves Big Brother and criminal hackers use the same tricks #hacking #privacy #security #tech

#Wikileaks’ #Vault7 proves Big Brother and criminal hackers use the same tricks #hacking #privacy #security #tech | Limitless learning Universe | Scoop.it
The Vault 7 papers shed light on the CIA, its techniques, and its relationship with other agencies and the world of cybercrime. The revelations are troubling, but also offer insight into the serious problems facing security and privacy today.
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#ESA’s Swarm #Satellites Reveal Detailed Variations in the Earth's Magnetic Field #physics

#ESA’s Swarm #Satellites Reveal Detailed Variations in the Earth's Magnetic Field #physics | Limitless learning Universe | Scoop.it
Three years of data collection the European Space Agency’s (ESA) Swarm satellites has resulted in the highest resolution map of Earth’s lithospheric magnetic field.  The lithosphere is the rigid outer part of Earth, consisting of the crust and upper mantle.  According to the ESA, he majority of the Earth’s magnetic field is generated deep within the planet due to movements by the molten iron in the outer core.  About 6% is from electric currents in the space surrounding the planet and from magnetised rocks in the upper lithosphere.  The agency was able to map this magnetic field by using data pulled from the trio of Swarm satellites and modeling it historical data from the German CHAMP satellite.  Nils Olsen from the Technical University of Denmark who worked on developing the map explains, “By combining Swarm measurements with historical data from the German CHAMP satellite, and using a new modelling technique, it was possible to extract the tiny magnetic signals of crustal magnetization.”

Via Fernando Gil
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Boy Nearly Decapitated Due To Popular Cell #Phone Accessory, Parents Warn Others

Boy Nearly Decapitated Due To Popular Cell #Phone Accessory, Parents Warn Others | Limitless learning Universe | Scoop.it
 

Via britishroses, talkingdrumnigeria
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#FF #Dutch researchers have succeeded to rejuvenate old mice with a new drug. #biology #science #medicine

#FF #Dutch researchers have succeeded to rejuvenate old mice with a new drug. #biology #science #medicine | Limitless learning Universe | Scoop.it
Dutch researchers have succeeded in old mice to rejuvenate with a new drug.
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#Kepler Mission Announces Largest #Planet Collection Ever Discovered #astronomy #space

#Kepler Mission Announces Largest #Planet Collection Ever Discovered #astronomy #space | Limitless learning Universe | Scoop.it
NASA's Kepler mission has verified 1,284 new planets – the single largest finding of planets to date.

“This announcement more than doubles the number of confirmed planets from Kepler,” said Ellen Stofan, chief scientist at NASA Headquarters in Washington. “This gives us hope that somewhere out there, around a star much like ours, we can eventually discover another Earth.” 

Via The Planetary Archives / San Francisco, California
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More than 300 #Cisco switch models vulnerable to #CIA hack #tech #security #privacy

More than 300 #Cisco switch models vulnerable to #CIA hack #tech #security #privacy | Limitless learning Universe | Scoop.it
Cisco has said its examination of the leaked CIA documents points to a gaping security hole in more than 30
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#EAST Publishes European #Fraud Update 1-2017 | European #ATM Security Team #malware #skimming #tech

#EAST Publishes European #Fraud Update 1-2017 | European #ATM Security Team #malware #skimming #tech | Limitless learning Universe | Scoop.it
EAST has published its first European Fraud Update for 201, based on country crime updates given by representatives of 24 countries at the 41st EAST meeting
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Super humans who are sexier, stronger and smarter will arrive by 2029 #transhumanism

Super humans who are sexier, stronger and smarter will arrive by 2029 #transhumanism | Limitless learning Universe | Scoop.it
Ray Kurzweil a futurist who works on Google's machine learning project predicted that singularity would happen in the next twelve years at the SXSW conference in Austin, Texas .

Via Michael Plishka, talkingdrumnigeria
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Michael Plishka's curator insight, March 16, 11:26 PM
Do you agree with the prediction?  The Timing?  The Results?