Science News Science News Respective post owners and feed distributors Tue, 22 Jan 2013 09:53:08 -0600 Feed Informer Human 'chimeric' cells restore crucial protein in Duchenne muscular dystrophy ScienceDaily: Latest Science News urn:uuid:721d29ac-f93b-e925-7e15-a78bcd6484f7 Fri, 16 Mar 2018 18:25:15 -0500 Cells made by fusing a normal human muscle cell with a muscle cell from a person with Duchenne muscular dystrophy -- a rare but fatal form of muscular dystrophy -- were able to significantly improve muscle function when implanted into the muscles of a mouse model of the disease. Soot transported from elsewhere in world contributes little to melting of some Antarctic glaciers ScienceDaily: Latest Science News urn:uuid:b65fcade-1ada-7765-bd41-2aa0b3e123ad Fri, 16 Mar 2018 18:25:12 -0500 Airborne soot produced by wildfires and fossil-fuel combustion and transported to the remote McMurdo Dry Valleys of Antarctica contains levels of black carbon too low to contribute significantly to the melting of local glaciers, according to a new study. Raising transparency in the online advertising ecosystem ScienceDaily: Latest Science News urn:uuid:75ce6571-1b3d-26fc-db25-36908e2b6374 Fri, 16 Mar 2018 18:25:09 -0500 The online advertising business, led by companies like Google or Facebook, generated over $200 billion revenue in 2017, with an year-over-year growth over 15 percent. This online advertising explosion is raising serious data privacy concerns. The absence of ants: Entomologist confirms first Saharan farming 10,000 years ago ScienceDaily: Latest Science News urn:uuid:eb25aaf8-c085-b12b-ef30-c0f535fb2c0b Fri, 16 Mar 2018 14:39:09 -0500 By analysing a prehistoric site in the Libyan desert, a team of researchers has been able to establish that people in Saharan Africa were cultivating and storing wild cereals 10,000 years ago. In addition to revelations about early agricultural practices, there could be a lesson for the future, if global warming leads to a necessity for alternative crops. Chirping is welcome in birds but not in fusion devices ScienceDaily: Latest Science News urn:uuid:824ae255-cc7d-f5c5-0496-da2e8a605bff Fri, 16 Mar 2018 14:39:06 -0500 Birds do it and so do doughnut-shaped fusion facilities called 'tokamaks.' But tokamak chirping -- a rapidly changing frequency wave that can be far above what the human ear can detect -- is hardly welcome to researchers who seek to bring the fusion that powers the sun and stars to Earth. Piezomagnetic material changes magnetic properties when stretched ScienceDaily: Latest Science News urn:uuid:44ba23d2-6b9f-12fd-ba1a-166eb8b05f92 Fri, 16 Mar 2018 14:39:02 -0500 Piezoelectric materials, which generate an electric current when compressed or stretched, are familiar and widely used: lighters that spark when you press a switch, microphones, sensors, motors and all kinds of other devices. Now a group of physicists has found a material with a similar property, but for magnetism. This 'piezomagnetic' material changes its magnetic properties when put under mechanical strain. Genetic variant discovery to help asthma sufferers ScienceDaily: Latest Science News urn:uuid:9dfc329b-ffb1-08f3-530f-db8ffb69df2e Fri, 16 Mar 2018 14:38:59 -0500 Researchers have identified a genetic variant that could improve the safety and effectiveness of corticosteroids, drugs that are used to treat a range of common and rare conditions including asthma, and chronic obstructive pulmonary disease (COPD). Plasmons triggered in nanotube quantum wells ScienceDaily: Latest Science News urn:uuid:c4025d74-737b-66fd-e68e-8c3887d97b17 Fri, 16 Mar 2018 11:11:58 -0500 A novel quantum effect observed in a carbon nanotube film could lead to the development of near-infrared lasers and other optoelectronic devices, according to scientists. Wandering greenhouse gas ScienceDaily: Latest Science News urn:uuid:43840b3a-bf5c-d445-9cf3-217709bdda4e Fri, 16 Mar 2018 11:11:56 -0500 On the seafloor of the shallow coastal regions north of Siberia, microorganisms produce methane when they break down plant remains. If this greenhouse gas finds its way into the water, it can also become trapped in the sea ice that forms in these coastal waters. Mice change their appearance as a result of frequent exposure to humans ScienceDaily: Latest Science News urn:uuid:3a215026-317b-6829-f410-3ddced798e45 Fri, 16 Mar 2018 10:30:53 -0500 Many tame domesticated animals have a different appearance compared to their relatives in the wild, for example white patches in their fur or shorter snouts. Researchers have now for the first time shown that wild house mice develop the same visible changes -- without selection, as a result of exposure to humans alone. Two better than one: Chemists advance sustainable battery technology ScienceDaily: Latest Science News urn:uuid:3c2c226e-838f-abad-904e-a3df24ab77b9 Fri, 16 Mar 2018 10:14:18 -0500 Chemists describe design and synthesis of a pi-conjugation-extended viologen molecule as a novel, two-electron storage anolyte for neutral total organic aqueous redox flow batteries. Researchers advise the use of anesthesia in fetuses from 21 weeks of gestation ScienceDaily: Latest Science News urn:uuid:133345c8-2301-670f-1565-27f06132f57a Fri, 16 Mar 2018 10:14:13 -0500 Although the problem of whether fetuses are able to feel pain or not is still controversial, researchers in Spain have found that from the second trimester of pregnancy, the future baby already shows signs of pain when given a harmful stimulus or as a response to stress. The finding, the researchers argue, indicate the need to anesthetize the fetus during open fetal surgery. Climate change promotes the spread of mosquito and tick-borne viruses ScienceDaily: Latest Science News urn:uuid:d7611a90-8f43-7d13-e6c2-ada5f2eee9f1 Fri, 16 Mar 2018 10:13:11 -0500 Scientists find that global warming has allowed disease-bearing insects to proliferate, increasing exposure to viral infections. Neighborhood wellbeing and a sense of community is at the heart of a good home, say researchers ScienceDaily: Latest Science News urn:uuid:ed69c522-0b6f-f5e7-280b-a1da4a334417 Fri, 16 Mar 2018 09:10:18 -0500 A sense of wellbeing and a thriving community is key to a happy neighborhood according to housing researchers, who looked at the relationship between the experience of the home and well-being. Menomous Solenodon, last survivor of a branch of mammals that appeared at the time of the dinosaurs, sequenced ScienceDaily: Latest Science News urn:uuid:77bd092a-6cf0-fad6-7fa5-d05af9fddb07 Fri, 16 Mar 2018 09:06:38 -0500 An article presents a draft genome of a small shrew-like animal, the venomous Hispaniolan solenodon. This unusual animal is one of the only extant venomous mammals, and it is the sole remaining branch of mammals that split from other insectivores at the time of the dinosaurs. The solenodon genome sequence revealed the answer to several evolutionary questions, such as whether the solenodon species indeed survived the meteor impact that killed the dinosaurs. Potential RNA Markers of abnormal heart rhythms identified in circulating blood ScienceDaily: Latest Science News urn:uuid:2a52f8e4-3b34-b5ee-d55c-b3442093f29c Fri, 16 Mar 2018 09:05:38 -0500 The irregular heart rhythm atrial fibrillation (AF) increases the risk of stroke and heart failure, but is often undiagnosed because of a lack of symptoms. Now, researchers have identified four short lengths of RNA (miRNAs) that show increased expression in the circulating blood of AF patients. These miRNAs could be used as potential biomarkers to predict the onset of AF disease. Reefs help protect vulnerable Caribbean fish from climate change ScienceDaily: Latest Science News urn:uuid:ce95fac9-ee29-e19d-7daf-fa65dc000544 Fri, 16 Mar 2018 09:03:14 -0500 New research suggests that larger reef areas may help protect the Caribbean's coral reef fish communities from the impacts of ocean warming. Image of the Day urn:uuid:6b1c5c3b-5502-93a5-7360-c25ad6d15f09 Fri, 16 Mar 2018 09:00:00 -0500 A Jovian storm looks like an impressionist painting of a rose in this image from NASA's Juno spacecraft. Equinox: Why Spring Weather Can Keep Us Guessing urn:uuid:709b7040-8c49-2fe1-de9d-14137a7532da Fri, 16 Mar 2018 06:41:00 -0500 Next Tuesday, at 12:15:21 p.m. EDT (16:15:21 GMT), the winter season will officially come to an end in the Northern Hemisphere. Air Force Awards Big Launch Contracts to SpaceX and ULA urn:uuid:f746a123-232f-1321-767a-2001c6570229 Fri, 16 Mar 2018 06:30:00 -0500 This is the fourth competition under the current Phase 1A EELV procurement where there has been more than one competitor for national security space missions. Four Cubesats Snuck into Orbit Without Regulatory Approval, FCC Says urn:uuid:d338f0df-c948-775f-c393-8c9a04c4f8b2 Fri, 16 Mar 2018 06:30:00 -0500 Concerns about space junk and satellite-launch regulations are swirling after the Federal Communications Commission alleged that a U.S. company launched four tiny satellites without permission. Nature's Lens: How Gravity Can Bend Light Like a Telescope urn:uuid:7fd66254-8ced-7d22-7844-a6d08fc893df Fri, 16 Mar 2018 06:29:00 -0500 Albert Einstein's vision for how gravity works was, to say the least, a radical departure from the older, Newtonian perspective. NASA's Acting Chief Expects Few Agency Changes Despite Leadership Uncertainty urn:uuid:0bfeb1b4-6895-5fc7-dfec-fb294ba88977 Fri, 16 Mar 2018 06:22:00 -0500 Despite uncertainty about who will lead the agency after the end of April, NASA's current acting administrator says he expects little change in the agency's activities in the near future. Gemini 8: NASA's First Space Docking in Pictures urn:uuid:7b9642c4-e9e0-2c63-8bd8-acaf1f6b4e89 Fri, 16 Mar 2018 05:00:00 -0500 On March 16, 1966, NASA astronauts Neil Armstrong and Dave Scott performed the first space docking on the Gemini 8 mission. See photos from that historic spaceflight here. 'Star Wars' Droids Point the Way to NASA Repair Robots urn:uuid:72ee8f28-e34a-beee-8e81-358f8a62a25b Fri, 16 Mar 2018 04:00:00 -0500 R2-D2 and BB-8 are the droids that NASA is looking for — "astromechs" that can help repair spaceships on the fly, a NASA robotics engineer says. Qapla'! Speak Klingon Like a Warrior with Duolingo urn:uuid:8ac6ac55-b45e-5c09-678a-8565262cc026 Fri, 16 Mar 2018 02:43:00 -0500 For those getting ready for their next trip to Kronos – the homeland of the fictional Klingons in "Star Trek" – the popular language-learning site Duolingo now has a course in Klingon. Thanos Stares Down Captain American in New 'Avengers: Infinity War' Trailer urn:uuid:62506151-0ea1-26c3-223a-20b94c057da6 Fri, 16 Mar 2018 02:36:00 -0500 And -- wait for it -- Star-Lord has another plan. Astronaut Scott Kelly and His Twin Brother Are Still Identical, NASA Says urn:uuid:44a87441-e78d-9131-2e22-af009dc40973 Fri, 16 Mar 2018 02:00:00 -0500 After a stream of erroneous media coverage about how spaceflight affects your genes, NASA issued a rare updated statement yesterday (March 15) about its "twins study" concerning former astronauts Scott and Mark Kelly. NASA's Prolific Planet-Hunting Kepler Spacecraft Is Running Out of Fuel urn:uuid:fdf6fb95-d179-b084-82f1-53f4e8a7f6d1 Fri, 16 Mar 2018 02:00:00 -0500 The Kepler space telescope's prolific planet-hunting days will end soon. China Outlines Two-Phase Chang'e 4 Moon Lander Mission urn:uuid:425f6f2c-d4a4-c44c-75af-9b3320f5e905 Fri, 16 Mar 2018 01:33:00 -0500 Later this year, the moon's far side will welcome its first robotic visitor — China's Chang'e 4 lander. This Tiny Private CubeRover Could Reach the Moon by 2020 urn:uuid:dff9f13a-b999-98b5-90c7-2f36e2c0eb6c Fri, 16 Mar 2018 00:56:00 -0500 The Pittsburgh-based company Astrobotic, in partnership with Carnegie Mellon University, has won a NASA Phase II Small Business Innovation Research Award to develop a "CubeRover" for moon missions. Ending overfishing would stop the population declines of endangered bycatch species about half the time ScienceDaily: Latest Science News urn:uuid:13a0451a-76b8-24de-b309-a595acd3e58b Thu, 15 Mar 2018 14:54:49 -0500 A study finds that ending overfishing would stop the population declines of endangered bycatch species about half the time. Artificial sweetener could intensify symptoms in those with Crohn's disease ScienceDaily: Latest Science News urn:uuid:6f03d20d-4337-ecc9-b4db-17a4be4fac5c Thu, 15 Mar 2018 14:54:11 -0500 In a study that has implications for humans with inflammatory diseases, researchers have found that, given over a six-week period, the artificial sweetener sucralose, known by the brand name Splenda, worsens gut inflammation in mice with Crohn's disease, but had no substantive effect on those without the condition. Virtual coaches, fitness trackers help patients stay fit after cardiac rehab ScienceDaily: Latest Science News urn:uuid:0996f916-f45d-4881-001c-0e46083e5aca Thu, 15 Mar 2018 13:50:01 -0500 A 12-week mobile health, or mHealth, program not only kept cardiac rehab patients from losing ground, it appeared to help them maintain and even gain fitness. New understanding of parasite biology might help stop malaria transmission ScienceDaily: Latest Science News urn:uuid:fc6b5db9-f54a-9304-3852-042fa7ee27f7 Thu, 15 Mar 2018 13:12:32 -0500 Researchers made an important step toward deeper understanding of how malaria blood stage parasites turn the switch to become transmissible to other humans. This knowledge is fundamental for future research aiming to interrupt malaria transmission. Clearing clumps of protein in aging neural stem cells boosts their activity ScienceDaily: Latest Science News urn:uuid:fb73e894-b082-9e9a-efba-939da9dc84a6 Thu, 15 Mar 2018 13:12:29 -0500 Young, resting neural stem cells in the brains of mice store large clumps of proteins in specialized cellular trash compartments known as lysosomes, researchers have found. New methods find undiagnosed genetic diseases in electronic health records ScienceDaily: Latest Science News urn:uuid:642e8a3e-d426-261d-8cb6-f6fbd6b835fa Thu, 15 Mar 2018 13:12:24 -0500 Researchers have found a way to search genetic data in electronic health records to identify undiagnosed genetic diseases in large populations so treatments can be tailored to the actual cause of the illness. Scientists discover genomic ancestry of Stone Age North Africans from Morocco ScienceDaily: Latest Science News urn:uuid:12669aaf-a8f7-b0b6-d302-5a391f3d1aa8 Thu, 15 Mar 2018 13:12:21 -0500 An international team of researchers have sequenced DNA from individuals from Morocco dating to approximately 15,000 years ago. This is the oldest nuclear DNA from Africa ever successfully analyzed. The study shows that the individuals, dating to the Late Stone Age, had a genetic heritage that was in part similar to ancient Levantine Natufians and an uncharacterized sub-Saharan African lineage to which modern West Africans are genetically closest. Improved capture of cancer cells in blood could help track disease ScienceDaily: Latest Science News urn:uuid:716f59b8-0f94-8a8b-2b63-c5e28bb756f5 Thu, 15 Mar 2018 13:12:15 -0500 New research builds on several years of work in isolating circulating tumor cells, or CTCs, by demonstrating improved methods for their capture on clinical samples for the first time. Democratizing single-cell analysis ScienceDaily: Latest Science News urn:uuid:26c737d8-56a7-7309-8624-f82f73738071 Thu, 15 Mar 2018 13:12:10 -0500 Scientists have developed a new low-cost technique for profiling gene expression in hundreds of thousands of cells. Infants can't talk, but they know how to reason ScienceDaily: Latest Science News urn:uuid:f0f78cf1-2d63-710f-049e-3b0b67a8b462 Thu, 15 Mar 2018 13:07:38 -0500 A new study reveals that preverbal infants are able to make rational deductions, showing surprise when an outcome does not occur as expected. Researchers create a protein 'mat' that can soak up pollution ScienceDaily: Latest Science News urn:uuid:c42fb427-36d0-3cf2-5cfa-9ba3c746dd2d Thu, 15 Mar 2018 13:07:35 -0500 In a breakthrough that could lead to a new class of materials with functions found only in living systems, scientists have figured out a way to keep certain proteins active outside of the cell. The researchers used this technology to create mats that can soak up and trap chemical pollution. Scientists discover evidence of early human innovation, pushing back evolutionary timeline ScienceDaily: Latest Science News urn:uuid:76443a6c-6883-0ed4-f995-c92caf65595e Thu, 15 Mar 2018 13:07:33 -0500 Scientists discovered that early humans in East Africa had -- by about 320,000 years ago -- begun trading with distant groups, using color pigments and manufacturing more sophisticated tools than those of the Early Stone Age, tens of thousands of years earlier than previous evidence has shown in eastern Africa. As earthquakes remodeled the landscape and climate fluctuated between wet and dry conditions, technological and social innovation would have helped early humans survive unpredictable conditions. Topsy-turvy currents key to removing nitrate from streams ScienceDaily: Latest Science News urn:uuid:8c970338-e169-c336-ad4f-3ba9e4f9ae58 Thu, 15 Mar 2018 13:07:30 -0500 More than 500 years ago, Leonardo da Vinci sketched what he called 'la turbolenza,' comparing chaotic swirls atop flowing water to curly human hair. It turns out those patterns influence myriad phenomena, from the drag on an airplane's wings and the formation of Jupiter's red spot to the rustling of tree leaves. Bacterial and host cell proteins interact to regulate Chlamydia's 'exit strategy' ScienceDaily: Latest Science News urn:uuid:9a32601e-ae3d-a69e-a08b-b2624c645acd Thu, 15 Mar 2018 13:07:27 -0500 Interactions between Chlamydia trachomatis proteins and host cell proteins help determine whether the bacterium leaves an infected cell via breakdown of the cellular membrane (lysis) or in a membrane-bound package, according to new research. New model links yellow fever in Africa to climate, environment ScienceDaily: Latest Science News urn:uuid:e927feb9-9f30-3fbd-f6ea-28aee2f9c1ed Thu, 15 Mar 2018 13:07:24 -0500 The burden of yellow fever in any given area is known to be heavily dependent on climate, particularly rainfall and temperature which can impact both mosquito life cycle and viral replication. Now, researchers have developed a new model to quantify yellow fever dynamics across Africa using not only annual averages of these climatic measures, but seasonal dynamics. How royal jelly helps honeybee larvae defy gravity and become queens ScienceDaily: Latest Science News urn:uuid:024b8689-4f60-1a25-e468-f2381ad9203c Thu, 15 Mar 2018 13:07:21 -0500 Honeybee larvae develop into queen bees if they are fed large quantities of a food called royal jelly. But royal jelly does more than determine whether a larva becomes a queen: it also keeps her safely anchored to the roof of the queen cell in which she develops. Research explains how the pH of royal jelly helps make the substance viscous enough to keep the queen-to-be from falling. Modern humans interbred with Denisovans twice in history ScienceDaily: Latest Science News urn:uuid:3a5d7620-9bc5-29f2-1c37-9b966d24150e Thu, 15 Mar 2018 13:07:18 -0500 Modern humans co-existed and interbred not only with Neanderthals, but also with another species of archaic humans, the mysterious Denisovans. Research now describes how, while developing a new genome-analysis method for comparing whole genomes between modern human and Denisovan populations, researchers unexpectedly discovered two distinct episodes of Denisovan genetic intermixing, or admixing, between the two. This suggests a more diverse genetic history than previously thought between the Denisovans and modern humans. Getting lost: Why older people might lose their way ScienceDaily: Latest Science News urn:uuid:aa801e55-9eec-3595-c114-25d433300cd9 Thu, 15 Mar 2018 13:07:15 -0500 Researchers have found a possible explanation for the difficulty in spatial orientation experienced sometimes by elderly people. In the brains of older adults, they detected an unstable activity in an area that is central for spatial navigation. Diabetes: Are high blood glucose levels an effect rather than the cause of the disease? ScienceDaily: Latest Science News urn:uuid:f37df8e5-2f0a-651e-da50-651a009def13 Thu, 15 Mar 2018 13:07:10 -0500 Insulin resistance and elevated blood glucose levels are considered to be the cause of type 2 diabetes. However, scientists have now provided evidence that things might be completely different. They showed in flies that elevated levels of the metabolite MG (methylglyoxal) cause the typical diabetic disturbances of the metabolism and lead to insulin resistance, obesity and elevated blood sugar levels.