Del

Del, or nabla, is an operator used in mathematics, in particular, in vector calculus, as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes its standard derivative as defined in calculus. When applied to a field (a function defined on a multi-dimensional domain), del may denote the gradient (locally steepest slope) of a scalar field (or sometimes of a vector field, as in the Navier–Stokes equations), the divergence of a vector field, or the curl (rotation) of a vector field, depending on the way it is applied.

Strictly speaking, del is not a specific operator, but rather a convenient mathematical notation for those three operators, that makes many equations easier to write and remember. The del symbol can be interpreted as a vector of partial derivative operators, and its three possible meanings—gradient, divergence, and curl—can be formally viewed as the product with a scalar, dot product, and cross product, respectively, of the del "operator" with the field. These formal products do not necessarily commute with other operators or products.

Deel (clothing)

A deel (Mongolian: дээл [teːɮ]; Buryat: дэгэл) is an item of traditional clothing commonly worn since centuries ago among the Mongols and other nomadic tribes of Central Asia, including various Turkic peoples, and can be made from cotton, silk, wool, or brocade. The deel is still commonly worn by both men and women outside major towns, especially by herders. In urban areas, deels are mostly only worn by elderly people, or on festive occasions. The deel appears similar to a caftan or an old European folded tunic. Deels typically reach to below the wearer's knees and fan out at the bottom and are commonly blue, olive, or burgundy, though there are deels in a variety of other colors.

Description

The deel looks like a large overcoat when not worn. Instead of buttoning together in the middle, the sides are pulled against the wearers body, the right flap close to the body with the left covering. On the right side of the wearer are typically 5 or 6 clasps to hold the top flap in place. There is one clasp below the armpit, three at the shoulder, and either one or two at the neckline.

Alpha Delphini

Alpha Delphini (α Del, α Delphini) is a multiple star in the constellation Delphinus. It also has the name Sualocin, which was given to it as a practical joke by the astronomer Niccolò Cacciatore; the name is the Latinized version (Nicolaus) of his given name, spelled backwards.

In Chinese, 瓠瓜 (Hù Guā), meaning Good Gourd, refers to an asterism consisting of α Delphini, γ² Delphini, δ Delphini, β Delphini and ζ Delphini. Consequently, α Delphini itself is known as 瓠瓜一 (Hù Guā yī, English: the First Star of Good Gourd.).

Properties

Alpha Delphini has seven components: A and G, a physical binary, and B, C, D, E, and F, which are optical binaries and have no physical association with A and G.

See also

References

References

Pita

Pita or pitta (/ˈpitə/ or US /ˈpiːtə/) also known as Syrian Bread or Arabic Bread, is a soft, slightly leavened flatbread baked from wheat flour that originated in the Near East, most probably Mesopotamia around 2500 BC. It is used in many Mediterranean, Balkan and Middle Eastern cuisines and resembles other slightly leavened flatbreads such as Iranian nan-e barbari, South Asian flatbreads and Central Asian naan, and pizza crust.

Etymology

The first known mention of the word in English was in 1936. The English word is borrowed from Modern Greek πίτα. These all probably come from the Byzantine Greek πίτα 'bread, cake, pie, pitta' (attested in 1108). Some sources trace it to the Ancient Greek πίττα or πίσσα 'pitch/resin', while others characterize this as "unlikely" and trace it to Latin picta 'painted', itself supposedly from Greek πηκτή 'congealed'. Though the Modern Hebrew word pittāh is spelled like the Aramaic pittəṭā/pittā (which is related to Levantine Arabic fatteh), they are not connected historically. Other hypotheses trace it to Germanic or Illyrian.

Pita (film)

Pita is a 1991 Hindi film based on Swedish playwright August Strindberg's play The Father. Directed by Govind Nihalani, the film stars Vimal Bhagat, Satyadev Dubey, Dina Pathak, Irrfan and Shikha Rai in lead roles.

Plot

In disagreement with his husband on how her daughter should be raised and what she should become, the central character of a woman thinks that if she declares her husband insane she would be able to decide for her daughter. Acting on this she sows seeds of confusion in the mind of his husband that he might not be the father of their daughter. The husband starts to believe and actually goes insane and his wife gets the custody of their daughter.

Cast

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Pita (footballer)

Edvaldo Oliveira Chaves, best known as Pita (born in Nilópolis, Rio de Janeiro State, Brazil, 4 August 1958) is a former association footballer in offensive midfielder role, currently works as General Manager by Desportivo Brasil.

Career

In career he played for clubs Santos FC (1978–1984), São Paulo (1985–1988), RC Strasbourg in France (1988–1989), Guarani (1989–1990), in Japan J. League Division 1 with Fujita and Nagoya Grampus Eight (1990–1993), and closed career with Inter Limeira in 1994.

Titles

He won three São Paulo State League (1978, 1985, 1987), and one Brazilian League (1986). For Brazil national football team he got 7 international caps from 1980 and won the 1987 Pan American Games.

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International career statistics

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Rónán

Rónán (anglicized Ronan) is an Irish language male given name meaning "little seal" (Rón meaning "seal", and -án being a diminutive suffix). It may refer to: Legend tells of a seal who is warned never to stray too close to the land. When the “”seal child”" is swept ashore by a huge wave, she becomes trapped in a human form, known as a “”Selkie”" or “”seal maiden.”" Although she lives as the wife of a fisherman and bears him children, known as “”ronans”" or “”little seals,”" she never quite loses her “”sea-longing.”" Eventually she finds the “”seal-skin”" which the fisherman has hidden and slips back into the ocean. But she can’t forget her husband and children and can even be seen swimming close to the shore, keeping a watchful eye on them.

People