AMX index

The AMX index, derived from Amsterdam Midkap Index, also known as Midkap index or simply Midkap, is a stock market index composed of Dutch companies that trade on Euronext Amsterdam, formerly known as the Amsterdam Stock Exchange. The index was started in 1995. It is composed of the 25 funds that trade on the exchange and that rank 26-50 in size. The funds that rank 1-25 in size are represented in the AEX index.

Composition

As of the quarterly review effective on 24 September 2012 the AMX index has the following composition.

^1 - Weightings accurate on 22 June 2011.

See also

References

External links

AMX

AMX may refer to:

AMC AMX

The AMC AMX is a two-seat GT-style sports car that was produced by American Motors Corporation for the 1968 through 1970 model years. The AMX was also classified as a muscle car, but "unique among other American cars at the time due its short wheelbase". The AMX was also the only American-built steel-bodied two-seater of its time, the first since the 1955-1957 Ford Thunderbird. To a degree, the AMX was a competitor with America's only other two-seater of the era, the Chevrolet Corvette for substantially less money. With a one-inch (2.5 cm) shorter wheelbase than Chevrolet's two-seater, the AMX was often seen by the press as a "Corvette competitor"

Fitted with the optional high-compression medium block 390 cu in (6.4 L) AMC V8 engine, the AMX offered top-notch performance at an affordable price. In spite of this value and enthusiastic initial reception by automotive media and enthusiasts, sales never thrived. However, the automaker's larger objectives to refocus AMC's image on performance and to bring younger customers into its dealer showrooms was achieved. After three model years, the two-seat version was discontinued, and the AMX's now signature badging was transferred to a high-performance version of its four-seat sibling, the Javelin, from 1971-1974.

AMX-10P

The AMX-10P is a French infantry fighting vehicle. It was developed after 1965 to replace the AMX-VCI in French service; the first prototypes were completed in 1968. It has NBC protection and amphibious capabilities, with hydro jets to swim in water. The AMX-10P has been operated in the past by France, the United Arab Emirates, Greece, Indonesia, Qatar, Saudi Arabia, Singapore and Mexico.

The first production vehicles were delivered in 1973 to the 7th Mechanised Brigade stationed at Reims.

The AMX-10P mounts a GIAT M693 20 mm automatic cannon with a day sight with 6× magnification. The cannon, which has an effective range of 1,500 metres, has a rate of fire of 700 rounds per minute. The frontal armour protects against 23 mm API and 14.5 mm API rounds, while all-round protection is against small arms bullets and artillery shell splinters only. In the French Army, 108 were to be upgraded between 2006 and 2008, improving the armour and mobility. The modifications will significantly increase the vehicles' protection with the installation of add-on armour, while improving mobility by fitting new suspension systems and a strengthened gearbox. The AMX 10P tracked IFV will be upgraded by Giat Industries.

Database index

A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed. Indexes can be created using one or more columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records.

An index is a copy of select columns of data from a table that can be searched very efficiently that also includes a low-level disk block address or direct link to the complete row of data it was copied from. Some databases extend the power of indexing by letting developers create indices on functions or expressions. For example, an index could be created on upper(last_name), which would only store the upper case versions of the last_name field in the index. Another option sometimes supported is the use of partial indices, where index entries are created only for those records that satisfy some conditional expression. A further aspect of flexibility is to permit indexing on user-defined functions, as well as expressions formed from an assortment of built-in functions.

Index (statistics)

In statistics and research design, an index is a composite statistic – a measure of changes in a representative group of individual data points, or in other words, a compound measure that aggregates multiple indicators. Indexes summarize and rank specific observations.

Much data in the field of social sciences is represented in various indices such as Gender Gap Index, Human Development Index or the Dow Jones Industrial Average.

Item in indexes are usually weighted equally, unless there are some reasons against it (for example, if two items reflect essentially the same aspect of a variable, they could have a weight of 0.5 each).

Constructing the items involves four steps. First, items should be selected based on their face validity, unidimensionality, the degree of specificity in which a dimension is to be measured, and their amount of variance. Items should be empirically related to one another, which leads to the second step of examining their multivariate relationships. Third, indexes scores are designed, which involves determining their score ranges and weights for the items. Finally, indexes should be validateds, which involves testing whether they can predict indicators related to the measured variable not used in their construction.

Index of a subgroup

In mathematics, specifically group theory, the index of a subgroup H in a group G is the "relative size" of H in G: equivalently, the number of "copies" (cosets) of H that fill up G. For example, if H has index 2 in G, then intuitively "half" of the elements of G lie in H. The index of H in G is usually denoted |G : H| or [G : H] or (G:H).

Formally, the index of H in G is defined as the number of cosets of H in G. (The number of left cosets of H in G is always equal to the number of right cosets.) For example, let Z be the group of integers under addition, and let 2Z be the subgroup of Z consisting of the even integers. Then 2Z has two cosets in Z (namely the even integers and the odd integers), so the index of 2Z in Z is two. To generalize,

for any positive integer n.

If N is a normal subgroup of G, then the index of N in G is also equal to the order of the quotient group G / N, since this is defined in terms of a group structure on the set of cosets of N in G.

If G is infinite, the index of a subgroup H will in general be a non-zero cardinal number. It may be finite - that is, a positive integer - as the example above shows.