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In a paper published by the journal Nature Structural & Molecular Biology, researchers at New York University (NYU) and Harvard University in the United States describe a new insight into the mechanisms used by cells to defend themselves from oxidative stress. |
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In 2007, the team coordinated by Eduardo Arzt, CONICET senior researcher and professor at the Faculty of Exact and Natural Sciences of the University of Buenos Aires, identified for the first time the genetic code for RSUME protein and discovered that one of the roles of this molecule is to modify proteins to assign new roles, for instance the ability to mediate the cell’s response to external factors such as lack of oxygen, etc. |
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A study at the Universidad Carlos III de Madrid (UC3M) analyzes how social networks were used between the attacks on March 11, 2004 (11M) and the demonstration in the Puerta del Sol on May 15th (15M). “On the tragic day of 11-M, there arose doubts about what the traditional media was saying,” explained Eva Herrero, researcher in the UC3M Department of Journalism and Audiovisual Communication. The response to this doubt resulted in “a call through SMS to demand explanations from the politicians,” said Herrero. At the same time, she observed that “that day might be the starting point for the creation of an alternative agenda outside of newsrooms by citizens. |
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Earlier this month, bloggers in Bocas Del Toro drew attention to an island in Dolphin Bay near Bocatorito where red mangrove trees are drying out. “I watched this particular mangrove go from green to brown in a matter of two weeks,” wrote sailboat captain Steven Guling in a note to STRI staff scientist Andrew Altieri. “One local kid who often comes to my boat while in Dolphin Bay was describing a worm with teeth but at the time it wasn't quite that clear and I thought he was referring to something in the water.” |
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Non-invasive methods of DNA analysis are helping researchers linked to Brazil’s National Biodiversity Research System (Sisbiota) to monitor populations of large carnivores living in the Atlantic Rainforest, the Cerrado, and transition areas between these two biomes in and near São Paulo State. |
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One of the most distant galaxies ever observed has provided astronomers with the first detection of dust in such a remote star-forming system and tantalizing evidence for the rapid evolution of galaxies after the Big Bang. The new observations have used the Atacama Large Millimeter/submillimeter Array (ALMA) to pick up the faint glow from cold dust in the galaxy A1689-zD1 and used ESO's Very Large Telescope (VLT) to measure its distance. |
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The decomposition of plant litter is a fundamental process in forest streams. These small streams constitute the majority of watercourses in many river basins and are usually shaded by the surrounding vegetation. The lack of sunlight to these streams limits the primary production or vegetal production, which is the process that underlies the food chains in many systems such as forests, grasslands, lakes or the open sea. However, the surrounding vegetation is a source of plant remains, especially leaf litter, to these streams. This litter is decomposed by micro-organisms and invertebrates, which by their actions lead to the availability of carbon and nutrients and their incorporation into the food webs. |
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In Colombia only 30% of wastewaters are treated. Using solar photocatalysis, a chemical process in which the only source of energy is the sun, water quality could be improved. This method to eliminate organic compounds was used by UNal-Manizales Chemical Engineer Sandra Milena López Zamora, to search for the ideal material to help improve the photocatalytic properties of titanium dioxide (TiO2), very used in this type of procedures due to its high solar energy conversion efficiency. |
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A towering tropical tree may look perfectly healthy on the outside but be in danger of collapse from fungal decay on the inside. Fungal diseases are part of the natural cycle of birth and death in the forest. In a city prone to gusty storms, however, infected trees threaten people, vehicles, and structures. How can municipal authorities identify dangerous trees? |
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Action for Healthy Ageing is the name of the first European ecosystem for promoting healthy, active ageing using new technologies. The main objectives of this software platform, developed by the Universidad Carlos III de Madrid (UC3M) as part of the European project known as SEACW, are to promote healthy habits in society as a whole and to foment activity and interaction between the elderly and the young through the use of new technologies. |
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Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered regions where certain organic molecules somehow endure the intense radiation near the supermassive black hole at the center of galaxy NGC 1068, also known to amateur stargazers as M77. |
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Broadly speaking, a process is a group of linked activities that add value to a supply. Process systems engineering focuses on the development and solution of mathematical models to optimize the performance of the processes. |
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Researchers at the Department of Informatics and Automatics at the University of Salamanca have developed an application for mobile phones that allows you to organize sports events. The idea is to facilitate the work of people who plan any competition, whatever the category and discipline, as well as other aspects related to sports practice, such as facilitating planning, advertising and enrollment in a tournament, its follow-up or location facilities. |
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Researchers at the University of São Paulo’s Chemistry Institute (IQ-USP) in Brazil have built “electronic noses” capable of identifying and classifying (by odor) different types of wood and plastic as well as detecting early-stage deterioration of oranges due to fungal contamination. |
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Scientists sometimes aggressively test the theories of their peers. Recently, Seth Finnegan preferred to put his own hypotheses to a stress test. Finnegan wants to examine how energy flows through Panama’s modern marine ecosystems to test ideas about the causes of diversification and extinction in marine ecosystems hundreds of millions of years ago. |
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Strength, flexion and durability are the properties provided to cement when adding plantain and banana fiber previously coated with manganese oxide. This type of coating improves the material’s compression resistance properties such as cellulosic cement, use for building and glues. |
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Starburst galaxies transmute gas into new stars at a dizzying pace – up to 1,000 times faster than typical spiral galaxies like the Milky Way. To help understand why some galaxies "burst" while others do not, an international team of astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) to dissect a cluster of star-forming clouds at the heart of NGC 253, one of the nearest starburst galaxies to the Milky Way. |
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Experiments performed at the University of São Paulo’s Ribeirão Preto Medical School (FMRP-USP) in Brazil suggest a possible correlation between severe sepsis and the expression of a cellular receptor called the aryl hydrocarbon receptor (AHR). |
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Eating a Strawberry Dart Poison Frog is supposed to be a really bad idea. As a reminder to potential predators, the tiny amphibian advertises its toxicity with its loudly colored skin — bright red in mainland Central America and a rainbow of variations on the islands of Panama’s Bocas del Toro Archipelago. Until recently, it was thought the tiny Oophaga pumilio had no regular predators. That may not be the case. |
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