Russian

Russian refers to anything related to Russia, including:

Russian may also refer to:

See also

Russian White, Black and Tabby

The Russian White, Russian Black, and Russian Tabby are breeds of cat created in 1971, derived from the Russian Blue. The Black and Tabby Russians came from the original mating which created the Russian White. It is appropriate to consider their origins first.

The Russian White Program

In the UK, Frances McLeod of Arctic began breeding Russian Whites and Russian Blacks in the 1960s.

In Australia, The Russian White program started on the 4 May 1971 by Dick and Mavis Jones of Myemgay Cattery. Below is an excerpt from an article by Mavis Jones.

Russian wine

Russian wine refers to wine made in the Russian Federation and to some extent wines made in the former Union of Soviet Socialist Republics though this later referencing is an inaccurate representation of wines from Armenia, Azerbaijan, Georgia, Moldova, Ukraine. The phrase Russian wine more properly refers to wine made in the southern part of the Russian Federation-including the areas around Dagestan, Chechnya, Kabardino-Balkaria, Krasnodar Krai, Rostov, and Stavropol Krai. Russia currently has the following controlled appellations that correspond to the sorts of grapes: Sibirkovy (Сибирьковый), Tsimlyanski Cherny (Цимлянский чёрный), Plechistik (Плечистик),Narma (Нарма), and Güliabi Dagestanski (Гюляби Дагестанский).

History

Wild grape vines have grown around the Caspian, Black and Azov seas for thousands of years with evidence of viticulture and cultivation for trade with the Ancient Greeks found along the shores of the Black Sea at Phanagoria and Gorgippia. It is claimed that the Black Sea area is the world's oldest wine region.

Product

Product may refer to:

Business

Sciences

Mathematics

In linear algebra:

In abstract algebra:

Product breakdown structure

In project management, a product breakdown structure (PBS) is a tool for analysing, documenting and communicating the outcomes of a project, and forms part of the product based planning technique.

The PBS provides ''an exhaustive, hierarchical tree structure of deliverables (physical, functional or conceptual) that make up the project, arranged in whole-part relationship'' (Duncan, 2015).

This diagrammatic representation of project outputs provides a clear and unambiguous statement of what the project is to deliver.

The PBS is identical in format to the work breakdown structure (WBS), but is a separate entity and is used at a different step in the planning process. The PBS precedes the WBS and focuses on cataloguing all the desired outputs (products) needed to achieve the goal of the project. This feeds into creation of the WBS, which identifies the tasks and activities required to deliver those outputs. Supporters of product based planning suggest that this overcomes difficulties that arise from assumptions about what to do and how to do it by focusing instead on the goals and objectives of the project - an oft-quoted analogy is that PBS defines where you want to go, the WBS tells you how to get there.

Product (category theory)

In category theory, the product of two (or more) objects in a category is a notion designed to capture the essence behind constructions in other areas of mathematics such as the cartesian product of sets, the direct product of groups, the direct product of rings and the product of topological spaces. Essentially, the product of a family of objects is the "most general" object which admits a morphism to each of the given objects.

Definition

Let C be a category with some objects X₁ and X₂. An object X is a product of X₁ and X₂, denoted X₁ × X₂, if it satisfies this universal property:

The unique morphism f is called the product of morphisms f₁ and f₂ and is denoted < f₁, f₂ >. The morphisms π₁ and π₂ are called the canonical projections or projection morphisms.

Above we defined the binary product. Instead of two objects we can take an arbitrary family of objects indexed by some set I. Then we obtain the definition of a product.

An object X is the product of a family (X_i)_i∈I of objects iff there exist morphisms π_i : X → X_i, such that for every object Y and a I-indexed family of morphisms f_i : Y → X_i there exists a unique morphism f : Y → X such that the following diagrams commute for all i∈I: