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Statistical Visualization For his book The Visual Miscellaneum, David McCandless, along with Lee Byron, had a look at breakups on Facebook, according to status updates. They looked for the phrase "we broke up because" in status updates, and then graphed the frequencies over time. Why they couldn't just look at updates to relationship status, I'm not sure. Notice the peak leading up to the holiday season and spring cleaning. Finally, there's the highlight of Mondays, which you might lead you to believe that people like to call it quits during the beginning of the week. [Information is Beautiful | Thanks, Elise]

Monophyletic, Polyphyletic, & Paraphyletc Taxa Concepts of monopoly, polyphyly, & paraphyly A taxon (pl. taxa) is any group of organisms that is given a formal taxonomic name. Loosely, a monophyletic taxon is one that includes a group of organisms descended from a single ancestor , whereas a polyphyletic taxon is composed of unrelated organisms descended from more than one ancestor. These loose definitions fail to recognize the fact that all organisms are related, therefore any conceivable group is logically "monophyletic". Well-known monophyletic taxa include Mammalia and Aves (modern birds), recognizable as all furry and feathered vertebrates, respectively. Taxonomists tend to fall into two schools, "Evolutionary" or "traditional" systematics versus "Phylogenetic" or "cladistic" systematics. An unfortunate circumstance for the student is that the two schools use the same terms, but in different ways, and often refuse to recognize the alternative usage. Figure © 1999 by Addison Wesley Longman; Text material © 2012 by Steven M.

Mathematical Background This web page is a revised and extended version of Appendix A from the book Conceptual Structures by John F. Sowa. It presents a brief summary of the following topics for students and general readers of that book and related books such as Knowledge Representation and books on logic, linguistics, and computer science. Note: Special symbols in this file that are outside the Latin-1 character set (ISO 8859-1) are represented by a .gif image for each character. The alt tag for each image gives the name of the character. 1. Elementary or "naive" set theory is used to define basic mathematical structures. Curly braces are used to enclose a set specification. This specifies a set consisting of the four integers 1, 97, 63, and 12. If the set is very large, like the set of all mammals, a complete listing is impossible. {x | vertebrate(x) and warmBlooded(x) and hasHair(x) and lactiferous(x)} {1, 2, 3} {x | x is an integer and 0<x<4} {x | x is a positive integer, x divides 6, and x . Idempotency. .

Create a topographic profile Import file (KML, KMZ, GPX) loaded layer and topographic profile of the route. Sometimes, some files do not automatically create a profile! Zoom: 15Counter markers: 2Status: OKАzimuth: 73°Mouse px: ...Lat./Lon.: ...Center point: -25.343780041796837, 131.03412500000002Center point location: Uluru Rd, Petermann NT 0872, Australia How to make a topographic profile? Reset Find your area of interest on the map Select the cursor min. 2 points (max. 300) Ready – site profile will be generated in seconds Embed the chart on your site Copy and save the link to the chart Add the route to the map Program Geocontext-Profiler allows you to make topographic profiles anywhere on Earth in the seabed and ocean floor. Within the program, you can find some advanced options that allow you to create a profile along the road, bicycle and pedestrian paths, and measuring the slope angle. Geocontext-Profiler on your website? Video: GEOCONTEXT-GISGoogle Maps JS API V3 – and

Canadian Social Statistics - Statistiques sociales du Canada Updated April 13, 2014 Page révisée le 13 avril 2014 [ Go to Canadian Social Research Links Home Page ] And another one gone And another one gone, Another one bites the dust. [Source : Queen] Statistics Canada's world-class data collection has been trimmed, again. The latest victim of the budget cuts is the collection of tables in the CANSIM database. I went to the CANSIM home page [ A few examples: For the category "Aboriginal peoples" : 4 tables terminated out of a total of 7 For the category "Children and youth" : 89 tables terminated out of a total of 130 For the category "Families, households and housing" : 67 tables terminated out of a total of 112 For the category "Government" : 62 tables terminated out of a total of 141 For the category "Income, pensions, spending and wealth" : 41 tables terminated out of a total of 167 For the category "Seniors" : 13 tables terminated out of a total of 30 [R.I.P.] [R.I.P.] Related link: Related link:

History of Medicine There is a lot that can be studied with the history of medicine. My studies focus on the uses of plants in medicine, the history of “irregular,” alternative or complementary medicine, and the various cultural roots and personal upbringings related to how and why these different methods of healing were discovered and/or became well-known. The unique thing about my research in this area is that I tend to cover these topics quite differently than how it has been traditionally researched, analyzed, reviewed and then written about or taught by medical historians. During my earliest years os studying medical history, the oldest members of this profession were famous due to their studies about the parts of medical history I like to review as forms of “quackery”, methods to be mocked, made fun of, or otherwise set apart from regular medicine due to their lack of authenticity and the ways their claims were made and supported. New France, French Canadian Medicine and the unique Materia Medica.

Home | Science On a Sphere Science On a Sphere® (SOS) is a room sized, global display system that uses computers and video projectors to display planetary data onto a six foot diameter sphere, analogous to a giant animated globe. Researchers at NOAA developed Science On a Sphere® as an educational tool to help illustrate Earth System science to people of all ages. Animated images of atmospheric storms, climate change, and ocean temperature can be shown on the sphere, which is used to explain what are sometimes complex environmental processes, in a way that is simultaneously intuitive and captivating. Science On a Sphere® extends NOAA's educational program goals, which are designed to increase public understanding of the environment.

Voronoi diagram 20 points and their Voronoi cells (larger version below). It is named after Georgy Voronoy, and is also called a Voronoi tessellation, a Voronoi decomposition, a Voronoi partition, or a Dirichlet tessellation (after Peter Gustav Lejeune Dirichlet). Voronoi diagrams can be found in a large number of fields in science and technology, even in art, and they have found numerous practical and theoretical applications.[1][2] The simplest case[edit] Formal definition[edit] Let . be a set of indices and let be a tuple (ordered collection) of nonempty subsets (the sites) in the space . , associated with the site is the set of all points in whose distance to is not greater than their distance to the other sites , where is any index different from . denotes the distance between the point and the subset , then The Voronoi diagram is simply the tuple of cells . Illustration[edit] As a simple illustration, consider a group of shops in a flat city. of a given shop and distance, namely Properties[edit] Examples[edit]

Smith chart An impedance Smith chart (with no data plotted) Overview[edit] The Smith chart is plotted on the complex reflection coefficient plane in two dimensions and is scaled in normalised impedance (the most common), normalised admittance or both, using different colours to distinguish between them. These are often known as the Z, Y and YZ Smith charts respectively.[7] Normalised scaling allows the Smith chart to be used for problems involving any characteristic or system impedance which is represented by the center point of the chart. The most commonly used normalization impedance is 50 ohms. Once an answer is obtained through the graphical constructions described below, it is straightforward to convert between normalised impedance (or normalised admittance) and the corresponding unnormalized value by multiplying by the characteristic impedance (admittance). A locus of points on a Smith chart covering a range of frequencies can be used to visually represent: Mathematical basis[edit] where and Also