Unaí

Unaí is a municipality in the state of Minas Gerais, Brazil.

History

In the municipality of Unai, there is the archaeological site Cave Gentile II, which records traces of hunter-gatherer peoples of more than 10,000 years, and gardeners people of almost 4000 years, they grew, according abundant plant remains: Corn , peanuts, pumpkin and gourd. In the city, it has the record of the oldest Brazilian ceramics outside the Amazon, dated 3500 years.

At the time of arrival of the first Europeans to Brazil, the central portion of Brazil was occupied by indigenous Macro-Ge linguistic trunk, as acroás, the xacriabás, the Xavante, the Kayapo, the Javaés, among others povos.

Over the centuries XVI, XVII and XVIII, numerous expeditions composed of Portuguese descent (called Scouts) swept the region in search of gold, precious stones and hand indigenous slave labor.

In the nineteenth century, the farmer Domingos Pinto Brochado settled, along with their families, in an area near the Rio Preto called White Grass. In 1873, the village was elevated to the rank of belonging to Paracatu district, with Rio Preto name. In 1923, the district was renamed to Unai, which is a translation for the Tupi language, the ancient name of the district, Rio Preto. In 1943, Unai emancipated the city of Paracatu.

Unit prefix

A unit prefix is a specifier or mnemonic that is prepended to units of measurement to indicate multiples or fractions of the units. Units of various sizes are commonly formed by the use of such prefixes. The prefixes of the metric system, such as kilo and milli, represent multiplication by powers of ten. In information technology it is common to use binary prefixes, which are based on powers of two. Historically, many prefixes have been used or proposed by various sources, but only a narrow set has been recognised by standards organisations.

Metric prefixes

The prefixes of the metric system precede a basic unit of measure to indicate a decadic multiple and fraction of a unit. Each prefix has a unique symbol that is prepended to the unit symbol. Some of the prefixes date back to the introduction of the metric system in the 1790s, but new prefixes have been added, and some have been revised. The International Bureau of Weights and Measures has standardised twenty metric prefixes in resolutions dating from 1960 to 1991 for use with the International System of Units (SI).

Una (Sava)

The Una is a river in Croatia and Bosnia and Herzegovina. The river has a total length of 212 km (132 mi) and watershed area of 9,368 km² (3,617 sq mi).

Geography

Course

The source of the Una is the Una spring, also known as Vrelo Une, and is located on the north-eastern slopes of the Stražbenica mountain in Lika region, Croatia. After 4 km the river reaches Bosnia and Herzegovina at the confluence with the Krka River. From here the Una river forms a natural border between Croatia and Bosnia for the next 8.5 km until it reaches the rail bridge 1.5 km before the Bosnian town of Martin Brod. From the rail bridge the Una enters Bosnia completely and flows for 21 km, before reaching the border between the two countries for the second time, 9 km downstream town of Kulen Vakuf. From here it forms the border for the next 20 km, all the way to another rail bridge between the villages of Malo Seoce and Užljebić. Here the Una enters Bosnia completely for the second time, and near Ripač it winds more north-westwards, entering Bihać, and turning north to Bosanska Krupa and Bosanska Otoka. After 85 km of flowing through Bosnia, the Una again marks the border between Bosnia and Herzegovina and Croatia for the third and final time, near the villages of Dobretin and Javornik (Croatia). It maintaining that status for the rest of its course until confluence with the Sava. At this stage, the Una passes by the Bosnian towns of Bosanski Novi (Novi Grad), Bosanska Kostajnica, Bosanska Dubica, and Croatian towns of Dvor, Hrvatska Kostajnica, Hrvatska Dubica. It spills into the Sava River near small town of Jasenovac.

Factor

Factor, a Latin word meaning "who/which acts", may refer to:

Commerce

Science and technology

Biology

Computer science and information technology

Factoring (finance)

Factoring is a financial transaction and a type of debtor finance in which a business sells its accounts receivable (i.e., invoices) to a third party (called a factor) at a discount. A business will sometimes factor its receivable assets to meet its present and immediate cash needs.Forfaiting is a factoring arrangement used in international trade finance by exporters who wish to sell their receivables to a forfaiter. Factoring is commonly referred to as accounts receivable factoring, invoice factoring, and sometimes accounts receivable financing. Accounts receivable financing is a term more accurately used to describe a form of asset based lending against accounts receivable.

Factoring is not the same as invoice discounting (which is called an "Assignment of Accounts Receivable" in American accounting – as propagated by FASB within GAAP). Factoring is the sale of receivables, whereas invoice discounting ("assignment of accounts receivable" in American accounting) is a borrowing that involves the use of the accounts receivable assets as collateral for the loan. However, in some other markets, such as the UK, invoice discounting is considered to be a form of factoring, involving the "assignment of receivables", that is included in official factoring statistics. It is therefore also not considered to be borrowing in the UK. In the UK the arrangement is usually confidential in that the debtor is not notified of the assignment of the receivable and the seller of the receivable collects the debt on behalf of the factor. In the UK, the main difference between factoring and invoice discounting is confidentiality.

Von Neumann algebra

In mathematics, a von Neumann algebra or W*-algebra is a *-algebra of bounded operators on a Hilbert space that is closed in the weak operator topology and contains the identity operator. They were originally introduced by John von Neumann, motivated by his study of single operators, group representations, ergodic theory and quantum mechanics. His double commutant theorem shows that the analytic definition is equivalent to a purely algebraic definition as an algebra of symmetries.

Two basic examples of von Neumann algebras are as follows. The ring L^∞(R) of essentially bounded measurable functions on the real line is a commutative von Neumann algebra, which acts by pointwise multiplication on the Hilbert space L²(R) of square integrable functions. The algebra B(H) of all bounded operators on a Hilbert space H is a von Neumann algebra, non-commutative if the Hilbert space has dimension at least 2.

Von Neumann algebras were first studied by von Neumann (1930) in 1929; he and Francis Murray developed the basic theory, under the original name of rings of operators, in a series of papers written in the 1930s and 1940s (F.J. Murray & J. von Neumann 1936, 1937, 1943; J. von Neumann 1938, 1940, 1943, 1949), reprinted in the collected works of von Neumann (1961).