Femtosecond Lasers Create 3-D Midair Plasma Displays You Can Touch. Science fiction has promised us three-dimensional midair displays since at least the first Star Wars movie. We’ve seen a few holographic technologies that have come close; they rely on optical tricks of one sort or another to make it seem like you’re seeing an image hovering in front of you. There’s nothing wrong with such optical tricks (if you can get them to work), but the fantasy is to have true midair pixels that present no concerns about things like viewing angles. This technology does exist, and has for a while, in the form of laser-induced plasma displays that ionize air molecules to create glowing points of light. If lasers and plasma sound like a dangerous way to make a display, that's because it is. But Japanese researchers have upped the speed of their lasers to create a laser plasma display that’s touchably safe. Each one of those dots (voxels) is being generated by a laser that’s pulsing in just a few tens of femtoseconds.
R/ sur Twitter : "#science: All the Colors of the Sun. All the Colors of the Sun : science. Neuroscience: The hard science of oxytocin. Illustration by Dale Edwin Murry In April 2011, Robert Froemke and his team were reprogramming the brains of virgin mice with a single hormone injection. Before the treatment, the female mice were largely indifferent to the cries of a distressed baby, and were even known to trample over them. But after an injection of oxytocin, the mice started to respond more like mothers, picking up the mewling pup in their mouths.
Froemke, a neuroscientist at New York University's Langone Medical Center in New York City, was monitoring the animals' brains to find out why that happened. At first, the mice showed an irregular smattering of neural impulses when they heard the baby's cries. Then, as the oxytocin kicked in, the signal evolved into a more orderly pattern typical of a maternal brain. Oxytocin has been of keen interest to neuroscientists since the 1970s, when studies started to show that it could drive maternal behaviour and social attachment in various species. Birth accelerator. DU Neurosciences et apprentissages tout au long de la vie. Sans équivalent en Europe, ce diplôme d’université vise à former les professionnels de l’enseignement, de la santé et de l’accompagnement, disposant déjà d’une expérience sur le terrain, aux domaines neuroscientifiques liés au développement de la personne tout au long de la vie. Les principales compétences visées sont :• l’acquisition de connaissances et de compétences neuroscientifiques, comme la compréhension du fonctionnement du cerveau tout au long de la vie• la dissipation des neuromythes en éducation• la compréhension de l’impact de l’environnement sur les apprentissages• la capacité à mener une réflexion sur une éthique des neurosciences• l’appréhension de l’existence d’intelligences multiples• la capacité à mettre en place une organisation des neurosciences au sein du système éducatif et des professions de soin pratiquant la remédiation cognitive.
Les dimensions épistémologiques, anthropologiques et éthiques liées au fait éducatif seront également abordées. Atouts Validation. Study shows benefits of multi-tasking on exercise. Who says you can’t do two things at once and do them both well? A new University of Florida (UF) study challenges the notion that multi-tasking causes one or both activities to suffer. In a study of older adults who completed cognitive tasks while cycling on a stationary bike, UF researchers found that participants’ cycling speed improved while multi-tasking with no cost to their cognitive performance.
Results of the study, which was supported by a grant from the National Institute on Aging, were published in the journal PLoS ONE. The discovery was a surprise finding for investigators Lori Altmann, an associate professor of speech, language and hearing sciences at the College of Public Health and Health Professions, and Chris Hass, an associate professor of applied physiology and kinesiology in the College of Health and Human Performance.
They originally set out to determine the degree to which dual task performance suffers in patients with Parkinson’s disease. Hass CJ et al. Brain responses to speech predict early language outcomes in children with autism. An essential component of current research initiatives on brain disorders is to enhance our understanding of normal and atypical brain development and how certain trajectories impact or underlie disease-related phenotypes. Studying brain disorders is inherently difficult, mostly due to their heterogeneity, genetic and biological complexity, and high comorbidity with other disorders. One strategy to enhance our understanding of these disorders is to identify core features that lend themselves to systematic and longitudinal investigations.
Autism spectrum disorder (ASD) is a poorly understood developmental disorder with tremendous heterogeneity in both clinical phenotypes and later clinical outcomes. A study, recently published in Neuron by Eric Courchesne’s laboratory, examined neural correlates of early language development in infants and toddlers with ASD. Each ‘subtype’ displayed differential developmental trajectories of language ability from 12-48 months of age. Publication. Music of the genome hits a discord with autism : citral. Instagram. Carlos Bohrz on Instagram: “#Unistra #Strasbourg #talk #recherche #présentation #PhD #Neurosciences #science”
Carlos Bohrz on Instagram: “#lost #mind #nuts #wako #fou #nerd #science #brain” Cannabis consumers show greater susceptibility to false memories. A new study published in the journal Molecular Psychiatry, reveals that consumers of cannabis are more prone to experiencing false memories. The study was conducted by researchers from the Human Neuropsychopharmacology group at the Biomedical Research Institute of Hospital de Sant Pau and from Universitat Autònoma de Barcelona, in collaboration with the Brain Cognition and Plasticity group of the Bellvitge Institute for Biomedical Research (IDIBELL -- University of Barcelona). One of the known consequences of consuming this drug is the memory problems it can cause. Chronic consumers show more difficulties than the general population in retaining new information and recovering memories. The new study also reveals that the chronic use of cannabis causes distortions in memory, making it easier for imaginary or false memories to appear.
On occasions, the brain can remember things that never happened. Note: Material may have been edited for length and content. J. Science explains why surprise brings us pleasure. If you’re reading this sentence, you just won $1,000. April Fools! You didn’t win anything, but if you had, you’d feel incredible. In fact, even if you’d won $1, you’d feel pretty great, simply because the prize was unexpected. Why get excited over something so small? It’s less about the money and more about the act of being surprised. In honor of April Fool’s Day we reached out to two surprise experts (yes, that’s a thing)—Tania Luna and LeeAnn Renninger, authors of the new book Surprise: Embrace the Unpredictable and Engineer the Unexpected—to break down the science of surprise. Here’s what we learned. Surprise brings us pleasure. Notice how an unexpected flower delivery brings you more joy than buying the flowers yourself?
To demonstrate this, researchers from Emory University split study participants into two groups. Surprise improves our romantic relationships. Ever heard the saying “surprise is the spice of life”? Surprise helps us learn. Surprise feeds our novelty bias. Semanticearth.com sur Twitter : "Sweet nanoparticles target stroke #Science.
Sweet nanoparticles target stroke. Materials resulting from chemical bonding of glucosamine, a type of sugar, with fullerenes, kind of nanoparticles known as buckyballs, might help to reduce cell damage and inflammation occurring after stroke. A team from the Max Planck Institute in Germany has tested this on mice, opening the door to potential new drugs for the cerebrovascular accident. The majority of stroke occurs when the blood vessels that reach the brain are blocked by clots or fatty deposits which decrease the flow of blood towards its cells. It is then that an ischemic attack occurs, a pathology that leads to the degeneration of neurones, which can be fatal and not many drugs can treat.
Now, German and Swiss scientists have discovered that the combination of two substances help to reduce inflammation and the brain volume affected after a cerebrovascular accident. What the researchers have done is chemically bond the two compounds to produce what is known as 'glyconanoparticles'. Tracy D. Man with restored sight provides new insight into how vision develops. California man Mike May made international headlines in 2000 when his sight was restored by a pioneering stem cell procedure after 40 years of blindness. But a study published three years after the operation found that the then-49-year-old could see colors, motion and some simple two-dimensional shapes, but was incapable of more complex visual processing.
Hoping May might eventually regain those visual skills, University of Washington (UW) researchers and colleagues retested him a decade later. But in a paper now available online in Psychological Science, they report that May -- referred to in the study as M.M. -- continues to perform significantly worse than sighted control group participants. The conclusion: May's vision remains very limited 15 years after the surgeries.
Though disappointing, the results provide valuable information that can help researchers better understand how vision develops and which visual processing tasks are most vulnerable to sight deprivation. E. Self-Directed Learning Favors Local, Rather Than Global, Uncertainty - Markant - 2015 - Cognitive Science. Comparing the Similarity of Responses Received from Studies in Amazon's Mechanical Turk to Studies Conducted Online and with Direct Recruitment. How many of the statements are correct.White blood cells fight infections, platelets help aid in clotting, and red blood cells carry oxygen.? Self-Powered Liquid Metal Could Change Robotics. Inspired by mollusks, researchers have developed a liquid metal that can move on its own, powered by aluminium “food”.
Described in a paper published in Advanced Materials, the new compound could make big waves in robotics thanks to its ability to change shape to negotiate bends and curves. A team led by Dr. Liu Jing at the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences and Tsinghua University used a mixture of gallium, indium and tin to make the metal compound. It stays liquid at temperatures above -2 degrees Fahrenheit (-19 Celsius), can move itself in a circle, straight line or even squeeze through complex shapes when placed in a sodium hydroxide solution.
Its integrated power source is a flake of aluminium embed in the liquid metal. The aluminium reacts with the sodium hydroxide to release hydrogen gas, while placing the aluminium in the liquid metal drop’s rear creates differences in electrical charges across the liquid metal. Source. Four-year-old discovers 100-million-year-old dinosaur. If Wylie Brys decides on a career in paleontology, he will have an impressive head start – at just four years old, he has already discovered his first 100 million-year-old Cretacean dinosaur.
Wylie came across the fossil in September 2014, while digging for marine animal bones with his father. Researchers from Southern Methodist University, who excavated the remains last week, have tentatively identified the fossil as a heavily-armored nodosaur. The specimen could be upwards of 100 million years old – but Brys didn’t know it at the time. “My dad told me it was a turtle,” Wylie told the Dallas Morning News. “But now he’s telling me it’s a dinosaur.” Fossil hunting is a favorite pastime of Wylie and his father Tim Brys, a Dallas zookeeper. But they usually search for the bones of fish and other marine life, not dinosaurs. Wylie is the latest in a pool of precocious young scientists who seem unfazed by the age barrier. [US] Collections | Periodic Table of Videos - Periodic Table of Videos | Science.
ATHEISTPOWER/Kriz sur Twitter : "#Science... Quantum Biology and the Hidden Nature of Nature. Maxime Duprez sur Twitter : "#Science #Art: luminous & colorful #fractal art! via @technogeek11... Fractal Art, source unknown - The Technogeek. Kurt Jaenen sur Twitter : "Low-budget real-life batsuit stops knives and punches #news #tech #science. CoinURL - Redirect. Oliver Johnston sur Twitter : "#Science science... Star Shit. On démarre! | la science et la pédagogie. Bonjour à toutes et tous! Voilà la première semaine du projet. L’ingénierie techno-pédagogique en sciences prend place et s’installe avec une bonne force. Cette première semaine, on a été invité à faire connaissance des projets menés par le département auquel je suis inscrit. Déjà avec une grande surprise, l’accompagnement avec le Nobel de Médecine 2011 Dr Hoffmann dans ses projets avec la faculté de médecine de #Unistra . Un autre projet intéressant est avec les écoles d’ingénieurs et l’enseignement d’algèbre.
Lorsqu’on est confronté à une nouvelle situation dont un défi est palpable, la motivation prend sa place et commence ce magnifique travail d’enchainement avec le cerveau pour produire des réactions chimiques. Ainsi, ce défi est en train d’activer toutes mes CDK5. On démarre avec des attentes énormes. J'aime : J'aime chargement… Scientific American sur Twitter : "A new report identifies 3 critical ethical gaps in neuroscience: #science #ethics.
We Need To Unlock the Brain’s Secrets—Ethically. Instagram. Carlos Bohrz on Instagram: “#Deutschland #Travel #Monde #Global #Tourism #Berlin #beer #snow #present #Colombia #Science” Carlos Bohrz on Instagram: “Hahahaha #checkthisout @_kmag67_ Maintenant tu sais comment obtenir le bon #Guacamole #Science #Fun #Brain #Chemistry #Hilarious #Neuro #Neuroscience #Food #Chef #YoungTalent” Carlos Bohrz on Instagram: “#PhD #melike #Neuroscience #Sciences #brain #Learning #Unistra #Europe” Carlos Bohórquez sur Twitter : "What is important is WHAT we teach and WHY we teach #EADTU #Physics #Lukasz Turski #Sciences #Krakow. Photo by dr_carbohr. Instagram. Instagram. Instagram. Shape Science: The Bouba-Kiki Effect. Key concepts Language Speech Shapes Sound Psychology Human behavior Introduction Do shapes have certain "sounds" to people, regardless of what language people speak?
For example, does everyone associate certain physical characteristics, like sharpness and roundedness, with certain sounds? Understanding such similarities may not only help people better understand how languages develop, but it may also improve people's ability to communicate, especially when trying to cross language barriers. In this activity you'll investigate the "Bouba–Kiki effect" to find out how abstract shapes may be linked to sound.
Background One of the most amazing things humans do is use language to communicate. One idea is that the first languages were representative sounds that people linked to concepts. Materials • A pen, pencil, or marker. Observations and results Did all of your volunteers identify the round shape as Bouba and the pointy shape as Kiki, even though they were not told what the words mean? Journal de l’univers des #sciences. Physical Review A. Publications - ISAC-NET. Live Chat: Can Geoengineering Save the World? Online Maths School. Motivating children to succeed. Doctor Llinás, ¿qué son el cerebro, Dios y el amor? - Noticias de Salud, Educación, Turismo, Ciencia, Ecología y Vida de hoy. Cada vez que visita el país, a Rodolfo Llinás se lo ve rodeado de una pequeña tempestad de gente que lo reconoce como uno de sus más grandes investigadores. De ese séquito que no le da un respiro hacen parte estudiantes, artistas, políticos, admiradores, funcionarios y, sí, uno que otro lagarto que se muere por una foto con él.
Y Llinás responde en su tono acachacado con frases amables en las que, curiosamente, siempre falta algo: el nombre de las personas. "Es que sufro de anomia", confiesa en tono confidencial uno de los neurocientíficos más reconocidos del mundo, hoy a cargo de la jefatura de ciencias de la Universidad de Nueva York. "Reconozco a las personas, su vida y milagros, por sus caras, pero nunca me acuerdo de los nombres", dice. Y para dejar bien claro el alcance de su condición, cuenta que hace ya casi 50 años, en Australia, tuvo que preguntarle a su novia cómo se llamaba para poder presentársela a uno de sus maestros.
¿Qué nos hace distintos entonces? ¿Y el odio y la envidia? A Peer-Reviewed Open-Access Journal. Teachers as Brain-Changers: Neuroscience and Learning. The Stanford Education Experiment Could Change Higher Learning Forever | Wired Science. Sebastian Thrun and Peter Norvig in the basement of Thrun's guesthouse, where they record class videos.Photo: Sam Comen Stanford doesn’t want me. I can say that because it’s a documented fact: I was once denied admission in writing. I took my last math class back in high school. Which probably explains why this quiz on how to get a computer to calculate an ideal itinerary is making my brain hurt. I’m staring at a crude map of Romania on my MacBook. Twenty cities are connected in a network of straight black lines.
Last fall, the university in the heart of Silicon Valley did something it had never done before: It opened up three classes, including CS221, to anyone with a web connection. People around the world have gone crazy for this opportunity. Aside from computer-programming AI-heads, my classmates range from junior-high school students and humanities majors to middle-aged middle school science teachers and seventysomething retirees. Solid understanding? Human Body Part That Stumped Leonardo da Vinci Revealed.