Wamac is a city in Clinton, Marion, and Washington counties in the U.S. state of Illinois. The population was 1,185 at the 2010 census. Incorporated as a city on July 25, 1916, Wamac derives its name from the three counties.
In linear algebra, a diagonal matrix is a matrix in which the entries outside the main diagonal are all zero; the term usually refers to square matrices. Elements of the main diagonal can either be zero or nonzero. An example of a 2×2 diagonal matrix is , while an example of a 3×3 diagonal matrix is. An identity matrix of any size, or any multiple of it, is a diagonal matrix.
IJmuiden is a port city in the Dutch province of North Holland. It is the main town in the municipality of Velsen which lies mainly to the south-east. Including its large sea locks, it straddles the mouth of the North Sea Canal to Amsterdam. To the south it abuts a large reserve of plant-covered dunes, the Zuid-Kennemerland National Park. The city is on the south bank; the north bank is otherwise a steel plant and Velsen-Noord.
In number theory, a Smith number is a composite number for which, in a given number base, the sum of its digits is equal to the sum of the digits in its prime factorization in the given number base. In the case of numbers that are not square-free, the factorization is written without exponents, writing the repeated factor as many times as needed.
Amsterdam Ordnance Datum or Normaal Amsterdams Peil (NAP) is a vertical datum in use in large parts of Western Europe. Originally created for use in the Netherlands, its height was used by Prussia in 1879 for defining Normalnull, and in 1955 by other European countries. In the 1990s, it was used as the reference level for the United European leveling Network (UELN) which in turn led to the European Vertical Reference System (EVRS).
A quadrupole or quadrapole is one of a sequence of configurations of things like electric charge or current, or gravitational mass that can exist in ideal form, but it is usually just part of a multipole expansion of a more complex structure reflecting various orders of complexity.
In statistics, a rank correlation is any of several statistics that measure an ordinal association—the relationship between rankings of different ordinal variables or different rankings of the same variable, where a "ranking" is the assignment of the ordering labels "first", "second", "third", etc. to different observations of a particular variable. A rank correlation coefficient measures the degree of similarity between two rankings, and can be used to assess the significance of the relation between them. For example, two common nonparametric methods of significance that use rank correlation are the Mann–Whitney U test and the Wilcoxon signed-rank test.
The ADM formalism is a Hamiltonian formulation of general relativity that plays an important role in canonical quantum gravity and numerical relativity. It was first published in 1959.
Fleiss' kappa is a statistical measure for assessing the reliability of agreement between a fixed number of raters when assigning categorical ratings to a number of items or classifying items. This contrasts with other kappas such as Cohen's kappa, which only work when assessing the agreement between not more than two raters or the intra-rater reliability. The measure calculates the degree of agreement in classification over that which would be expected by chance.
Amsterdam-Noord is a borough of Amsterdam, Netherlands with a population of about 90,000. The IJ, the body of water which separates it from Amsterdam-Centrum and the rest of the city, is situated southwest of Amsterdam-Noord. The borough, which has an area of 49.01 km2, borders the municipalities of Zaanstad, Oostzaan, Landsmeer and Waterland to the north, all part of the province of North Holland like Amsterdam. It borders the Markermeer to the east.
The Output Festival is Dutch tri-annual music festival which focuses on experimental, contemporary electroacoustic music related to the electric guitar.
Muziekgebouw aan 't IJ is the main concert hall for contemporary classical music on the IJ in Amsterdam, Netherlands. The building opened in 2005 and is located above the IJtunnel, a ten-minute walk from Amsterdam Centraal station. The building was designed by Danish architects 3XN. The Bimhuis is part of and partly integrated in the Muziekgebouw aan 't IJ.
Arabemys is an extinct genus of sea turtle. It was first named in 1999, and contains one species, A. crassiscutata. It is known from deposits of Late Paleocene or Early Eocene age near the village of Linah in northern Saudi Arabia.
Adamowo is a village in the administrative district of Gmina Bieżuń, within Żuromin County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) south of Bieżuń, 17 km (11 mi) south of Żuromin, and 109 km (68 mi) north-west of Warsaw.
Houthaven is a neighbourhood of Amsterdam, Netherlands situated in the West borough. Literally meaning "lumber port", Houthaven is a port situated along the IJ in Amsterdam's western port. It is bordered by a dam in the IJ river to the north and the Spaarndammerbuurt in the south. It is currently predominantly used by inland barges, however plans are in motion to radically change the area in the next few years by building a new residential area on seven artificial islands.
Oosterdokseiland is an island that forms a neighborhood of Amsterdam, Netherlands just to the east of Amsterdam Centraal railway station.
Rapenburg is a neighbourhood in Amsterdam, Netherlands. The main street is also called Rapenburg. Rapenburg is located in the centre of Amsterdam, on the northeastern side, close to the IJ. Rapenburg was first built in the sixteenth century and was home to many shipmakers, due to its location near to the IJ and the River Amstel.
Schinkelbuurt is a little neighborhood of Amsterdam, Netherlands. It is located directly south of Amsterdam's city centre and it is part of the borough Amsterdam-Zuid, in the part of the city known as the Old South.
In network science, the efficiency of a network is a measure of how efficiently it exchanges information and it is also called communication efficiency. The underlying idea is that the more distant two nodes are in the network, the less efficient their communication will be. The concept of efficiency can be applied to both local and global scales in a network. On a global scale, efficiency quantifies the exchange of information across the whole network where information is concurrently exchanged. The local efficiency quantifies a network's resistance to failure on a small scale. That is the local efficiency of a node characterizes how well information is exchanged by its neighbors when it is removed.
Felbrigg Woods is a 164.6-hectare (407-acre) biological Site of Special Scientific Interest south-west of Cromer in Norfolk. It is the main part of the grounds of Felbrigg Hall, a National Trust property which is listed on the Register of Historic Parks and Gardens of Special Historic Interest in England. It is a Nature Conservation Review site, Grade 2, and it is in the Norfolk Coast Area of Outstanding Natural Beauty.
