What sampling method to use ?- examples: Probability Sampling :- ( cluster sampling, stratified sampling, simple random sampling, multistage sampling, systematic sampling ) & Nonprobability sampling :- ( Convenience Sampling, Judgement Sampling, Purposive Sampling, Quota Sampling, Snowball Sampling, etc.

* 1984: Gateshead SIS / Tesco is first B2C online shopping and Mrs Snowball, 72, is the first online home shopper

The best studied is the Sturtian-Varangian glaciation, around 600 Ma, which may have brought glacial conditions all the way to the equator, resulting in a " Snowball Earth ".

* Snowball Samples: Often used when a target population is rare, members of the target population recruit other members of the population for the survey.

Mechanistically, the impact of Snowball Earth ( in particular the later glaciations ) on complex life is likely to have occurred through the process of kin selection.

There is also a rival hypothesis which has been gaining currency in recent years: that early Snowball Earths did not so much affect the evolution of life on Earth as result from it.

The Snowball Earth hypothesis has been invoked to explain glacial deposits in the Huronian Supergroup of Canada, though the palaeomagnetic evidence that suggests ice sheets at low latitudes is contested.

; Snowball: A poem in which each line is a single word, and each successive word is one letter longer.

Conditions of a reappearance of a sea with dissolved iron at, and later in association with Snowball Earth BIF reappeared, and that is problematic to explain ( see below ).

Another mechanism for BIF-formatíon, also proposed in the context of the Snowball Earth discussion, is by deposition from metal-rich brines in the vicinity of hydrothermally active rift zones.

The well-identified events of this eon were the transition to an oxygenated atmosphere during the Mesoproterozoic ; several glaciations, including the hypothesized Snowball Earth during the Cryogenian period in the late Neoproterozoic ; and the Ediacaran Period ( 635 to 542 Ma ) which is characterized by the evolution of abundant soft-bodied multicellular organisms.

Snowball I is mentioned for the first time and Waylon Smithers can be heard over the speaker at the power plant, but he is not seen.

Selwyn is the only Cambridge college to hold an annual Winter Ball known as the Selwyn Snowball, which traditionally takes place on the night of the last Friday of Michaelmas Term.

Snowball effect is a figurative term for a process that starts from an initial state of small significance and builds upon itself, becoming larger ( graver, more serious ), and perhaps potentially dangerous or disastrous ( a vicious circle, a " spiral of decline "), though it might be beneficial instead ( a virtuous circle ).

* In Kevin Smith's film, Clerks, the character Willam Black is nicknamed " Snowball " because he enjoys the practice.

Snowball is a small ' PIG ' in a story from 1946's ' animal farm '

Snowball is eventually forced out of the farm when Napoleon uses his guard dogs to chase Snowball.

It is also implied when the altered rules are painted over at the beginning of the live-action film that he returns to Manor Farm and reunites with the animals that are left, seeing as how Napoleon is dead, Squealer had no reason to change the rules again, and Snowball was the only other animal who could write to any ability.

They have all lost their voices ( due to throat cancer ) so they have to rely on voice boxes to communicate-including Snowball the cat ( who was white, and now is nicotine brown ) and their nephew Wayne ( who hasn't lost his voice ).

Snowball is a small string-handling programming language whose name was chosen as a tribute to the SNOBOL programming language, with which it shares the concept of string patterns delivering signals that are used to control the flow of the program.

The show was recorded for both audio and video, and in 2002, both the CD and DVD were released under the name Snowball of Doom, which is a reference to fact the band is still " rolling along " after fifteen years, but was still unable to secure a major American record label contract.

* In 1994, Royal Canadian Mounted Police ( RCMP ) detectives successfully tested hairs from a cat known as Snowball, and used the test to link a man to the murder of his wife, thus marking for the first time in forensic history the use of non-human DNA to identify a criminal.

His performance was so well-received that Disney used him for future movies including The Ugly Dachshund, Blackbeard's Ghost and Snowball Express.

Disney used his talents in a few projects, both as comedy support in features ( Snowball Express ) and voiceovers for a few of their animated characters.

* Life may have survived ' Snowball Earth ' in ocean pockets BBC News online ( 2010-12-14 ) report on research presented in the journal Geology by Dr Dan Le Heron ( et al.

However, the Snowball Earth research has suggested that " oxygen shocks " and reduced methane levels led, during the Huronian, Sturtian and Marinoan / Varanger Ice Ages, to a world that very nearly became a solid " snowball ".

Analysers like Lucene Snowball store the base stemmed format of the word without the knowledge of meaning, but taking into account the semantics of the word formation only.

Nick Eyles suggest that the Neoproterozoic Snowball Earth was in fact no different from any other glaciation in Earth's history, and that efforts to find a single cause are likely to end in failure.

This change in diversity and composition has not yet been observed – in fact, the organisms which should be most susceptible to climatic variation emerge unscathed from the Snowball Earth.

This development of multicellular organisms may have been the result of increased evolutionary pressures resulting from multiple icehouse-hothouse cycles ; in this sense, Snowball Earth episodes may have " pumped " evolution.

It has been argued that because Snowball Earth would undoubtedly have decimated the population size of any given species, the extremely small populations that resulted would all have been descended from a small number of individuals ( see founder effect ), and consequently the average relatedness between any two individuals ( in this case individual cells ) would have been exceptionally high as a result of glaciations.

* ' Snowball Earth ' theory melted BBC News online ( 2002-03-06 ) report on findings by geoscientists at the University of St Andrews, Scotland that casts doubt on the Snowball Earth hypothesis due to evidence of sedimentary material, which could only have been derived from floating ice on open oceanic waters.

* " Snowball Effect ", a 90-minute retrospective documentary for Clerks that focuses on Smith's early inception of the film, the process of making and distributing and finally, the reaction and response to the film from critics and fans.

* 13 deleted scenes and outtakes from Snowball Effect

* Snowball, a spherical object made from snow

Hollis found inspiration in Kim Kimberly from Level 9 Computing's text adventure Snowball, the seductive spy Agent X-27 in the 1930s film Dishonored, FBI agent Dana Scully from television series The X-Files, and the eponymous femme fatale of the film Nikita.

The six-or seven-toed polydactyl cats descended from Hemingway's original pet ' Snowball ' still live on the grounds and are cared for at the Hemingway House, despite complaints by the U. S. Department of Agriculture that they are not kept free from visitor contact, and the Key West City Commission exempted the house from a law prohibiting more than four domestic animals per household.

Highlights included The Snowball ( 20 April 1966 ) adapted from the novel by Brigid Brophy, Toddler on the Run adapted by Shena Mackay from her novella and directed by James MacTaggart, ( 25 May 1966 ) Cock Hen and Courting Pit ( renamed A Tour of the Old Floorboards ( 22 June 1966 ) by David Halliwell and two plays by Frank O ' Connor ( which Hugh Leonard adapted ) virtually without dialogue and which, renamed Silent Song, won The Prix Italia award in 1967 for ' original dramatic programmes ' jointly with a French programme.

Marine deposition occurred 1200 to 800 Ma, creating thick sequences of conglomerate, mudstone, and carbonate rock topped by stromatolites, and possibly glacial deposits from the hypothesized Snowball Earth event.

The Demospongia have an ancient history with the first demosponge fossils appearing in Precambrian deposits at the end of the Cryogenian " Snowball Earth " period, where their presence has been detected by fossilized steroids, called steranes, hydrocarbon markers that are characteristic of the cell membranes of the sponges, rather than from direct fossils of the sponges themselves.

After cooperatively crawling through dirt tunnels and repeatedly climbing a rope ladder in the episode " Snowball in Hell ," in the following episode (" Action!