Oenanthe javanica

Oenanthe javanica, Java waterdropwort,Japanese parsley or Chinese celery, is a plant of the water dropwort genus originating from East Asia. (Chinese celery is also the name given to Apium graveolens var. secalinum). It has a widespread native distribution in temperate Asia and tropical Asia, and is also native to Queensland, Australia.

While many other species of water dropwort are extremely toxic, Oenanthe javanica is edible, and is cultivated in China, India, Japan, Korea, Indonesia, Malaysia, Thailand (ผักชีล้อม), Taiwan, and Vietnam, as well as in Italy, where its spring growths (called seri セリ in Japanese, minari 미나리 in Korean) are relished as a vegetable. It is one of the ingredients of the symbolic dish consumed in the Japanese spring-time festival, Nanakusa-no-sekku.

It is commonly consumed in the Northeast Indian State of Manipur, where it is called komprek in Meithei. It is one of the main ingredients in Manipuri Eromba and Singju.

This plant should not be confused with the plants of the genus Cryptotaenia, sometimes called "Japanese wild parsley" (mitsuba in Japanese).

Seri Yek-e Zarruk

Seri Yek-e Zarruk (Persian: سري يك زروك‎‎, also Romanized as Serī Yek-e Zarrūk; also known as Serī-ye Yek) is a village in Shoaybiyeh-ye Gharbi Rural District, Shadravan District, Shushtar County, Khuzestan Province, Iran. At the 2006 census, its population was 703, in 118 families.

References

SERI

SERI may stand for:

Duality

Duality may refer to:

Mathematics

Philosophy, logic, and psychology

Science

Electrical and mechanical

Duality (projective geometry)

In geometry a striking feature of projective planes is the symmetry of the roles played by points and lines in the definitions and theorems, and (plane) duality is the formalization of this concept. There are two approaches to the subject of duality, one through language (§ Principle of Duality) and the other a more functional approach through special mappings. These are completely equivalent and either treatment has as its starting point the axiomatic version of the geometries under consideration. In the functional approach there is a map between related geometries that is called a duality. Such a map can be constructed in many ways. The concept of plane duality readily extends to space duality and beyond that to duality in any finite-dimensional projective geometry.

Principle of Duality

A projective plane C may be defined axiomatically as an incidence structure, in terms of a set P of points, a set L of lines, and an incidence relation I that determines which points lie on which lines. These sets can be used to define a plane dual structure.

Duality (CoPs)

In the context of a Community of practice the notion of a duality is used to capture the idea of the tension between two opposing forces which become a driving force for change and creativity. Wenger (Wenger 1998) uses the concept of dualities to examine the forces that create and sustain a Community of Practice. He describes a duality thus: '... a single conceptual unit that is formed by two inseparable and mutually constitutive elements whose inherent tensions and complementarity give the concept richness and dynamism' (Wenger 1998, p. 66).

Some compare the concept of a duality to that of Yin and Yang, i.e. two mutually defining opposites.

The opposing entities in a duality need to be viewed from a perspective of balance rather than opposition. The term implies a dynamism, continual change and mutual adjustment as the tensions that are inherent in dualities can be both creative and constraining. (Wenger 1998) identifies four dualities that exist in Communities of Practice: participation-reification, designed-emergent, identification-negotiability and local-global.