Skip to main content

Home/ science/ Group items matching "No" in title, tags, annotations or url

Group items matching
in title, tags, annotations or url

Sort By: Relevance | Date Filter: All | Bookmarks | Topics Simple Middle
Ilmar Tehnas

Our world may be a giant hologram - space - 15 January 2009 - New Scientist - 3 views

  •  
    Amazing what can be made from a bit of background noise in the GEO600 with a bit of imagination (or desire). Intriguing article from 12 months ago. no new information since....
Charles Daney

Galactic evolution: more data, no more answers - Ars Technica - 0 views

  •  
    New results from digital sky surveys highlight more inconsistencies in our understanding of early galaxies, which, in contrast to today's galaxies, were compact and rapidly moving.
Charles Daney

Memristor minds: The future of artificial intelligence - tech - 08 July 2009 - New Scientist - 0 views

  •  
    What connects human intelligence to the unsung cunning of slime moulds? An electric component that no one thought existed, explains Justin Mullins
Charles Daney

Dark Energy: Still a Puzzle | Cosmic Variance | Discover Magazine - 0 views

  •  
    People should not be afraid of dark energy. Remember that the problem with the cosmological constant isn't that it's mysterious and ill-motivated - it's that it's too small! The naive theoretical prediction is larger than what's required by observation by a factor of 10^120. That's a puzzle, no doubt, but setting it equal to zero doesn't make the puzzle go away - then it's smaller than the theoretical prediction by a factor of infinity.
Charles Daney

Genes That Make Us Human -- ScienceNOW - 0 views

  •  
    Finding genes that have evolved in humans among our genome's 3 billion bases is no easy feat. But now, a team has pinpointed three genes that arose from noncoding DNA and may help make our species unique.
Skeptical Debunker

What causes autism? Exploring the environmental contribution : Current Opinion in Pediatrics - 0 views

  •  
    Purpose of review: Autism is a biologically based disorder of brain development. Genetic factors - mutations, deletions, and copy number variants - are clearly implicated in causation of autism. However, they account for only a small fraction of cases, and do not easily explain key clinical and epidemiological features. This suggests that early environmental exposures also contribute. This review explores this hypothesis. Recent findings: Indirect evidence for an environmental contribution to autism comes from studies demonstrating the sensitivity of the developing brain to external exposures such as lead, ethyl alcohol and methyl mercury. But the most powerful proof-of-concept evidence derives from studies specifically linking autism to exposures in early pregnancy - thalidomide, misoprostol, and valproic acid; maternal rubella infection; and the organophosphate insecticide, chlorpyrifos. There is no credible evidence that vaccines cause autism. Summary: Expanded research is needed into environmental causation of autism. Children today are surrounded by thousands of synthetic chemicals. Two hundred of them are neurotoxic in adult humans, and 1000 more in laboratory models. Yet fewer than 20% of high-volume chemicals have been tested for neurodevelopmental toxicity. I propose a targeted discovery strategy focused on suspect chemicals, which combines expanded toxicological screening, neurobiological research and prospective epidemiological studies.
Skeptical Debunker

If bonobo Kanzi can point as humans do, what other similarities can rearing reveal? - 0 views

  • The difference between pointing by the Great Ape Trust bonobos - the only ones in the world with receptive competence for spoken English - and other captive apes that make hand gestures is explained by the culture in which they were reared, according to the paper's authors: Janni Pedersen, an Iowa State University Ph.D. candidate conducting research for her dissertation at Great Ape Trust; Pär Segerdahl, a scientist from Sweden who has published several philosophical inquires into language; and William M. Fields, an ethnographer investigating language, culture and tools in non-human primates. Fields also is Great Ape Trust's director of scientific research. Because Kanzi, Panbanisha and Nyota were raised in a culture where pointing has a purpose - The Trust's hallmark Pan/Homo environment, where infant bonobos are reared with both bonobo (Pan paniscus) and human (Homo sapiens) influences - their pointing is as scientifically meaningful as their understanding of spoken English, Fields said. The pointing study supports and builds on previous research on the effect of rearing culture on cognitive capabilities, including the 40-year research corpus of Dr. Duane Rumbaugh, Dr. Sue Savage-Rumbaugh and Fields, which is the foundation of the scientific inquiry at Great Ape Trust. Those studies included the breakthrough finding that Kanzi and other bonobos with receptive competence for spoken English acquired language as human children do - by being exposed to it since infancy. The bonobos adopted finger-pointing behavior for the same reasons, because they were reared in a culture where pointing has meaning.
  •  
    You may have more in common with Kanzi, Panbanisha and Nyota, three language-competent bonobos living at Great Ape Trust, than you thought. And those similarities, right at your fingertip, might one day tell scientists more about the effect of culture on neurological disorders that limit human expression. Among humans, pointing is a universal language, an alternative to spoken words to convey a message. Before they speak, infants point, a gesture scientists agree is closely associated with word learning. But when an ape points, scientists break rank on the question of whether pointing is a uniquely human behavior. Some of the world's leading voices in modern primatology have argued that although apes may gesture in a way that resembles human pointing, the genetic and cognitive differences between apes and humans are so great that the apes' signals have no specific intent. not so, say Great Ape Trust scientists, who argued in a recently published scientific paper, "Why Apes Point: Pointing Gestures in Spontaneous Conversation of Language-Competent Pan/Homo Bonobos," that not only do Kanzi, Panbanisha and Nyota point with their index fingers in conversation as a human being might, these bonobos do so with specific intent and objectives in mind.
thinkahol *

Musical chills: Why they give us thrills - 1 views

  •  
    ScienceDaily (Jan. 12, 2011) - Scientists have found that the pleasurable experience of listening to music releases dopamine, a neurotransmitter in the brain important for more tangible pleasures associated with rewards such as food, drugs and sex. The new study from The Montreal Neurological Institute and Hospital -- The Neuro at McGill University also reveals that even the anticipation of pleasurable music induces dopamine release [as is the case with food, drug, and sex cues]. Published in the journal Nature Neuroscience, the results suggest why music, which has no obvious survival value, is so significant across human society.
thinkahol *

YouTube - Sam Harris SALT - 2 views

  •  
    December 9th, 02005 - Sam Harris"The View From The End Of The World"This is an audio only presentation. This talk took place in the Conference Center Golden Gate Room, San Francisco. Quote: With gentle demeanor and tight argument, Sam Harris carried an overflow audience into the core of one of the crucial issues of our time: What makes some religions lethal? How do they employ aggressive irrationality to justify threatening and controlling non-believers as well as believers? What should be our response? Harris began with Christianity. In the US, Christians use irrational arguments about a soul in the 150 cells of a 3-day old human embryo to block stem cell research that might alleviate the suffering of millions. In Africa, Catholic doctrine uses tortured logic to actively discourage the use of condoms in countries ravaged by AIDS. "This is genocidal stupidity," Harris said. Faith trumps rational argument. Common-sense ethical intuition is blinded by religious metaphysics. In the US, 22% of the population are CERTAIN that Jesus is coming back in the next 50 years, and another 22% think that it's likely. The good news of Christ's return, though, can only occur following desperately bad news. Mushroom clouds would be welcomed. "End time thinking," Harris said, "is fundamentally hostile to creating a sustainable future." Harris was particularly critical of religious moderates who give cover to the fundamentalists by not challenging them. The moderates say that all is justified because religion gives people meaning in their life. "But what would they say to a guy who believes there's a diamond the size of a refrigerator buried in his backyard? The guy digs out there every Sunday with his family, cherishing the meaningthe quest gives them." "I've read the books," Harris said. "God is not a moderate." The Bible gives strict instructions to kill various kinds of sinners, and their relatives, and on occasion their entire towns. Yet slavery is challenged nowhere in the New or
thinkahol *

The Loneliest Plant In The World : Krulwich Wonders… : NPR - 1 views

  •  
    When a cycad is ready to reproduce, it grows a large colorful cone, rich with pollen or seed. It signals its readiness by radiating heat or sending out attractive odors to pollinators, who travel back and forth. Once fertilized, the seed-rich cone is ripped apart by hungry seed carriers (who've included over the years, not just birds and insects, but dinosaurs, pterosaurs, bats; these trees have been eaten by just about everybody). But what if you can't find a mate? The tree in London (and its clones that are now growing in botanical gardens all over the world) is a male. It can make pollen. But it can't make the seeds. That requires a female. Researchers have wandered the Ngoya forest and other woods of Africa, looking for an E. woodii that could pair with the one in London. They haven't found a single other specimen. They're still searching. Unless a female exists somewhere, E. woodii will never mate with one of its own. It can be cloned. It can have the occasional fling with a closely related species. Hybrid cycads are sold at plant stores, but those plants aren't the real deal. The tree that sits in London can't produce a true offspring. It sits there, the last in its long line, waiting for a companion that may no longer exist.
High Syn

Safe and Legal Pot - 4 views

You can say that I love to party and get high occasionally. But, then again getting addicted to the real thing is a big NO NO. Gladly a friend of mine introduced me to Kronic. It is a brand of herb...

herbal highs

started by High Syn on 13 Jun 11 no follow-up yet
thinkahol *

Schoolchildren can learn complex subjects on their own | KurzweilAI - 0 views

  •  
    Educational researchers at the Technical University of Munich (TUM) have found that schoolchildren can independently develop strategies for solving complex mathematical tasks, with weaker students proving just as capable as their stronger classmates. Researchers in mathematics education worked with approximately 1600 8th grade high-school students in various German states. Following an introduction to the general topic by their teachers, the school children were given a workbook of geometric tasks that they had to solve on paper and using a computer over four school periods. Calculating the surface area of Gran Canaria was one of the real-world, free-form assignments the students had to tackle. The workbook material included explanations and examples of various problem-solving approaches. The teachers took a back seat during the session but were on hand to answer questions from the children, who worked in pairs. After testing the students' skills before and after the session, the researchers recorded a significant improvement in their capabilities. The students learned to apply mathematics more effectively, the researchers said. The students were also able to call on these skills in a further test three months later. "We expected students who were weaker at math to benefit more from a greater degree of guidance through the module," said professor Kristina Reiss.  "But we didn't see a significant difference between these and stronger students." The researchers also found that there were also no differences between boys and girls. "We now know that students - also those who are weaker in math - have the skills to master even very complex subject matters at their own pace," said Reiss. Topics: Cognitive Science/Neuroscience
Janos Haits

the campus experience. online. | iversity - 0 views

  •  
    Our aspiration is to become the course management platform of choice for instructors and students around the globe. But of course, iversity's cutting-edge infrastructure can also be deployed for international research projects. Work is something you do rather than somewhere you go. With this maxim in mind, iversity has designed a cloud-based service that fosters limitless collaboration among academics worldwide. Faculty are no longer forced to work with the outdated software in use at their institution. Instead, they can sign up on an individual basis. Oh, and the best part: it's free.
cecilia marie

Virus Protection Software - 1 views

My files are often lost if not corrupted in my disk drive, and sadly, those where important documents. Sometimes, I fail to backup all my files, that is why, by the time it is corrupted, I am left ...

virus protection

started by cecilia marie on 09 Sep 11 no follow-up yet
thinkahol *

Does sexual equality change porn? - Pornography - Salon.com - 0 views

  •  
    In what may feel like a flashback to the porn wars of the '60s, a new study investigates the link between a country's relative gender equality and the degree of female "empowerment" in the X-rated entertainment it consumes. Researchers at the University of Hawaii focused on three countries in particular: Norway, the United States and Japan, which are respectively ranked 1st, 15th and (yikes) 54th on the United Nations' Gender Empowerment Measure (GEM). To simplify their analysis, their library of smut was limited to explicit photographs of women "from mainstream porNographic magazines and Internet websites, as well as from the portfolios of the most popular porn stars from each nation." Then they set out to evaluate each image on both a disempowerment and an empowerment scale, using respective measures like whether the woman is "bound and dominated" by "leashes, collars, gags, or handcuffs" or "whether she has a natural looking body." Their hypothesis was that societies with greater gender equity will consume porNography that has more representations of "empowered women" and less of "disempowered women." It turned out the former was true, but, contradictory as it may sound, the latter was Not. "While Norwegian porNography offers a wider variety of body types -- conforming less to a societal ideal that is disempowering to the average woman -- there are still many images that do Not promote a healthy respect for women," the researchers explain. In other words, Norwegian porn showed more signs of female empowerment, but X-rated images in all three countries equally depicted women in demeaning positions and scenarios. This, the researchers surmise, "suggests that empowerment and disempowerment within porNography are potentially different constructs." So, gender equality is accompanied by sexual interest in a broader range of beauty types but Not a decrease in porn's infantilization of females, use of dominating fetish gear on women or any of the other characteristics th
thinkahol *

Single stem cell capable of regenerating the entire blood system found | KurzweilAI - 2 views

  •  
    Scientists at the McEwen Centre for Regenerative Medicine and the Ontario Cancer Institute have isolated a human blood stem cell in its purest form: as a single stem cell capable of regenerating the entire blood system. "This discovery means we now have an increasingly detailed road map of the human blood development system, including the much sought after stem cell," says principal investigator John Dick, who holds a Canada Research Chair in Stem Cell Biology and is a Senior Scientist at the McEwen Centre for Regenerative Medicine and the Ontario Cancer Institute, University Health Network (UHN). "We have isolated a single cell that makes all arms of the blood system, which is key to maximizing the potential power of stem cells for use in more clinical applications. Stem cells are so rare that this is a little like finding a needle in a haystack," says Dr. Dick. Ref.: John E. Dick, Isolation of Single Human Hematopoietic Stem Cells Capable of Long-Term Multilineage Engraftment, Science, July 2011: Vol. 333 no. 6039 pp. 218-221 [DOI: 10.1126/science.1201219]
Skeptical Debunker

Carbon Nanotube Speakers Could Be Powered by Lasers, Transform noisy Spaces into Peaceful Sanctums - 6 views

  • “Nanotubes assemblies of various types are black and highly conductive,” said Dr. Mikhail Kozlov, a research scientist and the study’s lead author. “Their dark, conductive surface can be effectively heated with laser light or electricity to induce variations in the pressure of the air around the nanotubes — which we perceive as sound. It’s called the photo- or thermo-acoustic effect, and it’s the same principle Alexander Graham Bell used to produce sound on the first telephone.” With laser excitation, no electrical contact with the nanotube speaker is required, making the speakers wireless. “Speakers made with carbon nanotube sheets are extremely thin, light and almost transparent,” Kozlov said. “They have no moving parts and can be attached to any surface, which makes the surface acoustically active. They can be concealed in television and computer screens, apartment walls, or in the windows of buildings and cars. The almost invisible strands form films that can ‘talk.’” In addition to filling a room with sound from invisible speakers, nanotube speakers could easily cancel sound from the noisiest neighbor or dim the roar of traffic rushing past a neighborhood, using the same principles as current sound-canceling technologies. “The sound generation by nanotube sheets can help to achieve this effect on very large scales,” Kozlov said.
  •  
    A UT Dallas team's study published in the Journal of Applied Physics expands the extraordinary capabilities of nanotechnology to include laser-powered acoustic speakers made from assemblies of carbon nanotubes.
  •  
    Amazing work being done with nanotechnology!
  •  
    http://www.nlptrainingcoaching.com Neuro Linguistic Programming (NLP) Neuro Linguistic Programming (NLP) is the most proven and systematic way to understand, how your subconscious is presently programed for current level of success.
anonymous

Pros And Secrets Of The Stem Cell Research - 1 views

Stem cells are generally present in the body of humans and several animals. They divide themselves into some other cells as well with time, which are important for the survival of humans. Since las...

stem cell research medical research

started by anonymous on 14 Jan 15 no follow-up yet
Tom Thomos

Best Erosion Control Systems Give A No-Fuss Solution to Sediment Erosion - 1 views

  •  
    You can install erosion control systems such as waste enclosures, culvert protection bags, sediment control fence, sand bags, etc. provided by Coastline Sediment Control as per your different requirements. These services are available in various customized solutions.
Tom Thomos

Erosion Control Systems Give A No-Fuss Solution to Sediment & Erosion - 1 views

  •  
    Soil erosion is a natural occurrence in which soil, debris and sediments are broken down through the flow of wind or action of rain. Coastline Sediment Control gives erosion control systems to control sedimentation and soil erosion.
« First ‹ Previous 61 - 80 of 155 Next › Last »
Showing 20 items per page