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New molecular blueprint advances our understanding of photosynthesis

The cryo-EM structure of the NAD(P)H dehydrogenase-like complex (NDH). The atomic coordinate model shown as spheres, colored according to the different subunits, in front of an electron micrograph of frozen NDH particles in the background. Credit: Thomas Laughlin/UC Berkeley and Berkeley Lab Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have…

Chang’e 4 Rover comes into view

The Chang'e 4 rover is now visible to LROC! Just beyond the tip of the right arrow is the rover and the lander is to the right of the tip of the left arrow. The image appears blocky because it is enlarged 4x to make it easier to see the two vehicles. North is to…

Philosophy: What exactly is a black hole?

Simulation of Material Orbiting close to a Black Hole. Credit: ESO/Gravity Consortium/L. Calçada A black hole is conventionally thought of as an astronomical object that irrevocably consumes all matter and radiation which comes within its sphere of influence. Physically, a black hole is defined by the presence of a singularity, i.e., a region of space,…

Millions of tons of plastic waste could be turned into clean fuels, other products

A chemical conversion process developed at Purdue University allows researchers to turn recycled shopping bags into pellets into oil as shown in the bottle being held by Linda Wang, the Maxine Spencer Nichols Professor in the Davidson School of Chemical Engineering. Using distillation, that oil is separated into a gasoline-like fuel in the bottle in…

Novel autism mouse model based on an epigenetic gene developed

A network of Setd5-mutant neuronal cultures extracted from the cortex of a mouse cortex. Cell nuclei are blue. Neurons are white. Astrocytes, a type of brain cell, are red. Credit: Alysson Muotri, UC San Diego The causes of autism spectrum disorder (ASD) are diverse and to some extent, unknown. But without doubt, they are complex,…

Mathematical monotsukuri: Summing a constant may help to detect synchronized brain activity

Summing a constant parameter c warps the phase ? into angle ?, according to a relationship that quickly becomes intricate (top). When this operation is applied to electroencephalogram signals, it seems to more clearly reveal the differences in synchronization while either resting or imagining to move a hand and while imagining to move either the…

Pilot study suggests pedal desks could address health risks of sedentary workplace

A recent pilot study by kinesiologists at UMass Amherst found that pedaling at a self-selected light-intensity pace while at work improved insulin responses to a test meal. Credit: UMass Amherst/Catrine Tudor-Locke A recent pilot study by kinesiologists at the University of Massachusetts Amherst found that pedaling while conducting work tasks improved insulin responses to a…

Selfies to self-diagnosis: Algorithm ‘amps up’ smartphones to diagnose disease

Images of a diagnostic assay are captured using a smartphone camera. Regions of interest are extracted and are converted to HSV (hue, saturation, value) space. After the conversion process, the standard pixel intensity analysis is applied to the saturation channel and the values are used to determine absorbance and concentration of the sample automatically. Credit:…

Sustainable electronics manufacturing breakthrough

SFU Mechatronic Systems Engineering professor Woo Soo Kim is collaborating with Swiss researchers to develop an eco-friendly 3D printable solution for producing wireless Internet-of-Things sensors. The research team is using a wood-derived cellulose material to replace the plastics and polymeric materials currently used in electronics. Credit: SFU Simon Fraser University and Swiss researchers are developing…

Neanderthal footprints found in Gibraltar

The place where the footprint was found. Credit: Universdad de Sevilla The  international journal Quaternary Science Reviews has just published a paper which has involved the participation of Gibraltarian scientists from The Gibraltar National Museum alongside colleagues from Spain, Portugal and Japan. The results which have been published come from an area of the Catalan…

Can we repair the brain? The promise of stem cell technologies for treating Parkinson’s...

Sections of rat brain transplanted with human cells in a preclinical model of PD are being prepared for analysis. Credit: Claire Henchcliffe Cell replacement may play an increasing role in alleviating the motor symptoms of Parkinson's disease (PD) in future. Writing in a special supplement to the Journal of Parkinson's Disease, experts describe how newly…

Word order predicts a native speakers’ working memory

The research team traveled the world to run memory tests in eight different human cultures speaking different languages. Credit: MPI f. Evolutionary Anthropology Memory plays a crucial role in our lives, and several studies have already investigated how we store and retrieve information under different conditions. Typically, stimuli presented at the beginning and at the…

Learning new vocabulary during deep sleep

Left panel: In the sleep laboratory, the electrical activity of the brain is recorded using electroencephalography (EEG). Right panel: During deep sleep, slow oscillatory high-amplitude waves emerge in the EEG. These waves are generated by the brain cells' rhythmic alternation between highly active phases (red: "up-states") and passive phases (blue: "down-states"). Credit: Simon Ruch/Marc Züst,…

Earth’s magnetic shield booms like a drum when hit by impulses

Artist rendition of a plasma jet impact (yellow) generating standing waves at the magnetopause boundary (blue) and in the magnetosphere (green). The outer group of four THEMIS probes witnessed the flapping of the magnetopause over each satellite in succession, confirming the expected behaviour/frequency of the theorised magnetopause eigenmode wave. Credit: E. Masongsong/UCLA, M. Archer/QMUL, H.…

Hearing and deaf infants process information differently

A new study by researchers at The Ohio State University Wexner Medical Center found that deaf infants took longer to process new visual objects, suggesting that developmental differences begin very early in life and extend beyond language and hearing. Credit: Courtesy of The Ohio State University Wexner Medical Center Differences in cognitive development between hearing…

Scientists look to past to help identify fish threatened with local extinction

Marine scientistshave developed a methodology to assess fish stocks that combines new data with archaeological and historical records - some dating back to the 8th Century AD. Credit: Tim McClanahan/WCS Marine scientists from the University of Queensland, WCS (Wildlife Conservation Society) and other groups have developed a methodology to assess fish stocks that combines new…

Giant ‘megalodon’ shark extinct earlier than previously thought

Megalodon extinction graphical abstract. Credit: Robert Boessenecker Megalodon -- a giant predatory shark that has inspired numerous documentaries, books and blockbuster movies -- likely went extinct at least one million years earlier than previously thought, according to new research published Feb. 13 in PeerJ -- the Journal of Life and Environmental Sciences. Earlier research, which…

Pika survival rates dry up with low moisture

With their sensitivity to overheating, pikas are an indicator species for how climate change may affect mountain-dwelling wildlife. Credit: Photo courtesy of Shana Weber Although it has been ranked as the cutest creature in US National Parks, the American pika is tough, at home in loose alpine rocks in windswept mountain regions. Related to rabbits…

Why too much DNA repair can injure tissue

At left, photoreceptor cells of the retina have undergone severe damage after treatment with an alkylating agent. This damage is exacerbated by the DNA repair enzyme Aag. At right, photoreceptor cells lacking Aag appear normal following treatment with the alkylating agent. Credit: Image courtesy of the researchers DNA-repair enzymes help cells survive damage to their…

Psychological science can make your meetings better

Business meeting (stock image). Credit: © Monkey Business / Fotolia Drawing from almost 200 scientific studies on workplace meetings, a team of psychological scientists provides recommendations for making the most out of meetings before they start, as they're happening, and after they've concluded. Their report is published in Current Directions in Psychological Science, a journal…


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