Frontier of Physics: Interactive Map. “Ever since the dawn of civilization,” Stephen Hawking wrote in his international bestseller A Brief History of Time, “people have not been content to see events as unconnected and inexplicable.
They have craved an understanding of the underlying order in the world.” In the quest for a unified, coherent description of all of nature — a “theory of everything” — physicists have unearthed the taproots linking ever more disparate phenomena. With the law of universal gravitation, Isaac Newton wedded the fall of an apple to the orbits of the planets. Albert Einstein, in his theory of relativity, wove space and time into a single fabric, and showed how apples and planets fall along the fabric’s curves. And today, all known elementary particles plug neatly into a mathematical structure called the Standard Model. Our map of the frontier of fundamental physics, built by the interactive developer Emily Fuhrman, weights questions roughly according to their importance in advancing the field.
Terakoty w takim wzorze nigdy dotąd nie było. Praktyczne odkrycie amerykańskich matematyków. Portal Uniwesytetu Śląskiego w Katowicach. Beyond the Bell Curve, a New Universal Law. Imagine an archipelago where each island hosts a single tortoise species and all the islands are connected — say by rafts of flotsam.
As the tortoises interact by dipping into one another’s food supplies, their populations fluctuate. In 1972, the biologist Robert May devised a simple mathematical model that worked much like the archipelago. He wanted to figure out whether a complex ecosystem can ever be stable or whether interactions between species inevitably lead some to wipe out others. By indexing chance interactions between species as random numbers in a matrix, he calculated the critical “interaction strength” — a measure of the number of flotsam rafts, for example — needed to destabilize the ecosystem.
DeltaMi - portal popularnonaukowy miesięcznika Delta. Weka 3 - Data Mining with Open Source Machine Learning Software in Java. Weka is a collection of machine learning algorithms for data mining tasks.
The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes. Found only on the islands of New Zealand, the Weka is a flightless bird with an inquisitive nature. The name is pronounced like this, and the bird sounds like this.
Weka is open source software issued under the GNU General Public License. We have put together several free online courses that teach machine learning and data mining using Weka. Yes, it is possible to apply Weka to big data! Międzynarodowy Hackaton Otwartych Danych / Open Data Hackaton.
Principal Investigator: Tali Sharot. The sport of data science. Michał Heller. Multiverse. Eternal inflation. Eternal inflation is predicted by many different models of cosmic inflation.
MIT professor Alan H. Guth proposed an inflation model involving a "false vacuum" phase with positive vacuum energy. Parts of the universe in that phase inflate, and only occasionally decay to lower-energy, non-inflating phases or the ground state. Journal of Graph Algorithms and Applications. Directory of Open Access Journals. ChaosBook.org. REVIEWS OF MODERN PHYSICS. "Relative State" Formulation of Quantum Mechanics* Hugh Everett, lIl † Palmer Physical Laboratory, Princeton University, Princeton, New Jersey * Thesis submitted to Princeton University March 1, 1957 in partial fulfillment of the requirements for the Ph.D. degree.
An earlier draft dated January, 1956 was circulated to several physicists whose comments were helpful. Professor Niels Bohr, Dr. . † Present address: Weapons Systems Evaluation Group, The Pentagon. The task of quantizing general relativity raises serious questions about the meaning of the present formulation and interpretation of quantum mechanics when applied to so fundamental a structure as the space-time geometry itself. Many-worlds interpretation. PLOS. Michał Heller. All Publications. Open access. Open access logo, originally designed by Public Library of Science.
Whilst no official open access logo exists, organisations are free to select the logo style that best supports their visual language. Other logos are also in use. ArXiv.org e-Print archive. Plus.maths.org. Bluebrain.
Molecular Cell Biology, 6e. Free Online Course Materials. Neuroanatomy 1 — The Brain. Connectome Toolbox Software. While the HCP data set will be an invaluable resource, many researchers will want to be able to download this data and use Connectome tools to compare it with their own data.
To support these users, we are developing a set of Connectome software that will fully support browsing, download, exploration and analysis of HCP data. Connectome software will be downloadable as individual components with full documentation on installing and using the tools. Two key tools are being developed by the Human Connectome Project consortium, as a part of our HCP Informatics Infrastructure: All data collected in the Human Connectome Project will be published via ConnectomeDB, a web application that will enable users to query, filter and download data, and execute Connectome processing and analysis pipelines. The Connectome toolbox also includes analysis tools such as: FSL is a comprehensive (structural, functional and diffusion) neuroimaging software platform.