Un edificio que se 'alimenta' de esmog. Formula predicts research papers' future citations. Data from Dashun Wang / Science It sounds like a science administrator’s dream — or a scientist's worst nightmare: a formula that predicts how often research papers will be cited. But a team of data scientists now says it could be possible. They report1 today that a simple model allows reasonably accurate predictions of a paper’s future performance on the basis of about five years of its citation history. "We would like to be able to predict as early as possible, and with relatively stable accuracy, how impactful a particular paper will be in the future," says study co-author Dashun Wang at the IBM Thomas J.
Watson Research Center in New York. The forecasting model relies on picking up clues from how a paper is cited in its early years. Ultimate impact The researchers tested out their model on physics papers from the 1960s. In some cases, however, there was a lot of uncertainty, so the range of future prediction was very wide (see 'Predicting the future' above). Increasing complexity. Modelling Dynamics in Biology: From History to Practical Examples | Transmitting Science. PLEASE NOTE: Registration for this course is not yet available. If you want to receive information once the registration is open, please subscribe without any obligation by selecting the topic Systems Biology. Today’s high-impact biological journals require scientific results that tightly combine experimental data with theoretical predictions or verifications. However, there is still a large gap between the experimental and the theoretical / computational communities in terms of common language as well as capabilities and limitations of modelling tools.
The current course bridges this gap by presenting an overview of systems biology with emphasis on the necessity, uses and pitfalls of dynamical modelling in biology. It introduces the required language and philosophy for a smooth and fruitful collaboration between life scientists and theoreticians (i.e. mathematicians, physicists, computer scientists) . * Wilensky, U. 1999. NetLogo. Instructors: Books: I confess, I wrote the Arsenic DNA paper to expose flaws in peer-review at subscription based journals. In 2011, after having read several really bad papers in the journal Science, I decided to explore just how slipshod their peer-review process is.
I knew that their business depends on publishing “sexy” papers. So I created a manuscript that claimed something extraordinary - that I’d discovered a species of bacteria that uses arsenic in its DNA instead of phosphorus. But I made the science so egregiously bad that no competent peer reviewer would accept it. The approach was deeply flawed – there were poor or absent controls in every figure.
My sting exposed the seedy underside of “subscription-based” scholarly publishing, where some journals routinely lower their standards – in this case by sending the paper to reviewers they knew would be sympathetic - in order to pump up their impact factor and increase subscription revenue. OK – this isn’t exactly what happened. There are deep problems with science publishing. Echnology essay competition: Biotechnology and sustainable food practices - Peng - 2013 - Biotechnology Journal.
Biotechnology essay competition Promoting environment awareness and green growth has been the ethos of Biotechnology Journal since its inception – Prof. Hans Günter Gassen, our founding editor, was a keen supporter of exploring the potential of biotechnology for sustainable development [1]. We first joined the United Nations Environment Programme (UNEP)'s World Environment Day awareness campaign in 2011 [2]. Last year we initiated an essay competition on “Biotechnology and the Green Economy” open to secondary/high school students to promote biotechnology to a younger generation of audiences and also to seek their opinion on how biotechnology could contribute to a green economy [3].
The essay competition generated significant interest amongst our readers from all over the world and the article was viewed almost 2000 times and we received many enquiries as well as essays. We look forward to another exciting essay competition! Biotechnology Journal Essay Competition Details. Complexity Explorer. Janeway's Immunobiology. Step by step around the globe. Revolutionary method for probing molecular structure unravels. Y. Inokuma and M.
Fujita Some experts have questioned whether embedding molecules into a sponge-like cage can help to determine their structures using X-rays. Coaxing molecules to form crystals is a dark art, equal parts luck and labour. So, many chemists were in awe when a team reported an apparently simple way of getting otherwise intractable small molecules to adopt orderly arrangements — the first step towards determining their structure using X-rays. The method uses 'crystalline sponges' to hold molecules in the regular order needed to perform X-ray crystallography. “It really would have been transformational,” says Jon Clardy, a biological chemist at Harvard Medical School in Boston, Massachusetts, who wrote a glowing News and Views to accompany the paper when it was first published.
Sponge-worthy molecules X-ray crystallography was the technique that revealed DNA’s double helix. Ambiguous centres Trial and error Data deposition That attitude is much more measured than early opinions. Biology. Science's 10 Inventions that Could Have Changed the World. Observan el mundo cuántico de la fotosíntesis. Las antenas proteínicas actúan como máquinas cuánticas y utilizan un mecanismo de transporte cuántico para orientar de manera eficiente la luz y almacenar la energía en sus centros de reacción. / ICFO Showing image 1 of 1 Los organismos fotosintéticos, como las plantas y algunas bacterias, convierten el 95% de la luz solar en energía química mediante eficientes reacciones y en menos de una milmillonésima parte de un segundo.
Sin embargo las células fotovoltaicas de los paneles solares solo 'saben' aprovechar un 20% la energía lumínica. Pero ahora un nuevo estudio puede ayudar a desvelar los mecanismos secretos de la naturaleza e incrementar ese porcentaje. Investigadores del Instituto de Ciencias Fotónicas (ICFO) y la Universidad de Glasgow (Reino Unido) han observado por primera vez a temperatura ambiente los mecanismos cuánticos del transporte de energía durante la fotosíntesis.
Lo han comprobado en una bacteria púrpura fotosintética (Rhodopseudomonas acidophila). Vía pública sustentable: un cartel de publicidad que produce agua potable. Buenos Aires, Argentina.- Varias empresas que se dedican a la cartelería en la Argentina se han mostrado interesadas en adquirir la gran novedad en vía pública: postes publicitarios que, además de “vender”, generan agua potable a partir de la humedad del aire en zonas sin acceso al vital elemento. Excelente iniciativa en Lima, Perú, de una universidad y una agencia de publicidad. Un excelente caso de cómo la ingeniería y la publicidad se pueden dar la mano para solucionar problemas reales de la gente. En este caso, el ejemplo de la Universidad de Ingeniería y Tecnología de Lima (Utec), que junto con la agencia de publicidad MayoDraft, desarrollaron el primer poste publicitario del mundo en generar agua potable a partir de la humedad del aire.
Lima es la segunda ciudad más grande del mundo establecida en un desierto, donde apenas llueve. Al mismo tiempo, se da el caso de que el aire tiene una humedad del 98 por ciento. Esto, inspiró a los creadores. ¿Cómo funciona? Plants perform molecular maths. Nigel Cattlin/Getty As if making food from light were not impressive enough, it may be time to add another advanced skill to the botanical repertoire: the ability to perform — at least at the molecular level — arithmetic division.
Computer-generated models published in the journal eLife illustrate how plants might use molecular mathematics to regulate the rate at which they devour starch reserves to provide energy throughout the night, when energy from the Sun is off the menu1. If so, the authors say, it would be the first example of arithmetic division in biology.
But it may not be the only one: many animals go through periods of fasting — during hibernations or migrations, for example — and must carefully ration internal energy stores in order to survive. “This is a new framework for understanding the control of metabolic processes,” says Rodrigo Gutiérrez, a plant-systems biologist at the Pontifical Catholic University of Chile in Santiago, who was not involved in the work. The Joy of Stats. About the video Hans Rosling says there’s nothing boring about stats, and then goes on to prove it. A one-hour long documentary produced by Wingspan Productions and broadcast by BBC, 2010. A DVD is available to order from Wingspan Productions.
Director & Producer; Dan Hillman, Executive Producer: Archie Baron. Hans Rosling explains a very common misunderstanding about the world: That saving the poor children leads to overpopulation. The world might not be as bad as you might believe! Hans Rosling is debunking the River of Myths about the developing world. Instead of studying history one year at the university, you can watch this video for less than five minutes. Explaining the global vaccination programs is NOT a party-killer! Is there a relation between religion, sex and the number of babies per woman? What was the greatest invention of the industrial revolution?
Hans Rosling uses Gapminder bubbles in CNN Global Public Square to show US converge with other countries. Online games offer trove of brain data. Gary Waters/Ikon Images/Corbis So-called brain-training games stimulate users' cognitive abilities while providing massive amounts of data for researchers. By trawling through data from 35 million users of online ‘brain-training’ tools, researchers have conducted a survey of what they say is the world’s largest data set of human cognitive performance. Their preliminary results show that drinking moderately correlates with better cognitive performance and that sleeping too little or too much has a negative association. The study, published this week in Frontiers in Human Neuroscience1, analysed user data from Lumosity, a collection of web-based games made by Lumos Labs, based in San Francisco, California. Researchers at Lumos conducted the study in collaboration with scientists at two US universities as part of the Human Cognition Project, which the authors describe as “a collaborative research effort to describe the human mind”.
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Virus. Evolution. Animation Development: Biology. Xkcd. Observan el mundo cuántico de la fotosíntesis. How 142 Nations Capitalize on Science. Since 2007 economists from Cornell University, INSEAD and the World Intellectual Property Organization (WIPO) have issued the annual Global Innovation Index (GII), a report that sizes up the innovative capacities and results of the world's economies.
This year's report includes data on 142 economies, which represents 94.9 percent of the world's population and 98.7 percent of global GDP. How does one measure something as abstract as “innovation”? The GII researchers use 84 data points ranging from political stability to ease of starting a business to the number of Wikipedia edits originating there every year. This year's big-picture findings: R&D spending has rebounded around the world after suffering in the wake of the global financial crisis. The same high-income usual suspects—the wealthiest European countries in particular—dominate the top of the list. Select an option below: Customer Sign In *You must have purchased this issue or have a qualifying subscription to access this content. We've Been Looking at the Spread of Global Pandemics All Wrong - Emily Badger. Five hundred years ago, the spread of disease was largely constrained by the main mode of transportation of the time: people traveling on foot. An outbreak in one town would slowly ripple outward with a pattern similar to what occurs when a rock drops onto a surface of still water.
The Black Death moved across 14th century Europe in much this way, like concentric waves unfurling across the continent. Today, disease migrates across populations and geography with a curiously different pattern. In 2003, SARS first appeared in China, then spread to Hong Kong, then turned up from there in Europe, Canada and the United States. Plot the spread of the disease on a map of the world, and its movement looks downright random. What has changed dramatically in the intervening centuries is not necessarily the diseases themselves, but human mobility networks. "That made me think about, 'what is it that makes these different simulations be so much in agreement?
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