American jazz is a trove of sounds borrowed from such varied sources as American and African folk music, European classical music, and Christian gospel songs. One of the recognizable traits of jazz is its use of improvisation: certain parts of the music are written out and played the same way by various performers, and other improvised parts are created spontaneously during a performance and vary widely from performer to performer.

The root form of jazz was ragtime, lively songs or rags performed on the piano, and the best-known of the ragtime performers and composers was Scott Joplin. Born in the 1868 to former slaves, Scott Joplin earned his living from a very early age playing the piano in bars around the Mississippi. One of these regular jobs was in the Maple Leaf Club in Sedalia, Missouri. It was there that he began writing the more than 500 compositions that he was to produce, the most famous of which was “The Maple Leaf Rag”.

(Longman Preparation Course for the TOEFL, Deborah Philips Adapted.)

According to the text:

Sobre o navegador Mozilla Firefox (Configuração Padrão – Idioma Português Brasil), analise as afirmativas.

I. O atalho Ctrl + R é utilizado para atualizar a página.
II. O atalho Ctrl + W é utilizado para fechar uma aba.
III. O atalho Ctrl + D é utilizado para exibir os downloads realizados.

Está(ão) correta(s) apenas a(s) afirmativa(s)

O atendimento pré-hospitalar deve centralizar-se na rápida identificação e avaliação do paciente com Acidente Vascular Encefálico (AVE) isquêmico agudo; para isso, é importante que o profissional saiba identificar alguns fatores que implicam em um AVE; analise-os.

I. Dormência na face, braço ou perna, especialmente de um lado do corpo.
II. Confusão na comunicação (fala ou entendimento).
III. Distúrbio da visão em um ou nos dois olhos.
IV. Queda de hematócrito.

Está(ão) INCORRETA(S) apenas a(s) alternativa(s)

A região perineal possui glândulas secretoras de muco que auxiliam na defecação; ocasionalmente estas glândulas inflamam e podem gerar abscessos. São fatores de risco para abscesso anorretal, EXCETO:

Acerca do tratamento do câncer de reto são indicações de tratamento neoadjuvante, EXCETO:

Em relação às lesões associadas ao trauma torácico, é correto afirmar que a situação que leva ao maior grau de letalidade trata-se de:

Em relação à hemorragia digestiva baixa causada por angiodisplasias, assinale a afirmativa INCORRETA.

My friend Arnold Spencer has recently been indicated to a higher position at work, in fact he is now an editor-in-chief at a famous online magazine. However having had personal worth to access that, it seems to have gotten to him. We should admit he hasn’t been himself lately. He turned out to be aloof, has been getting to work late and you notice he’s spacing out frequently.

Mark the option that correctly completes the sentence about Arnold.

“It’s extremely important that ______________ warned about the consequences of such behavior.”

How things work: 100 scientific explanations

Preservation property has always been important to humans. Historians in the ninth century were the first to record the use of varnish, a protective liquid composed of resins, natural oils, and alcohol, among other ingredients. Furniture makers learned that if they painted coats of the stuff on a piece of furniture or wood floor, it made it impervious to liquids and their damage and shielded it from normal wear and tear. And the makers liked the shine furniture had after it was varnished.

Varnish comes in many formulations. Some are oil based, using linseed or tung oil, while others are water-based. Varnish cures, or dries, on what it’s painted, creating a glossy, clear film on the surface. Some oil-based varnishes can turn to a yellowish color; water-based varieties do not. Wood must be carefully cleaned and sanded before any varnish is applied. Several coats are often required. All varnishes contain resins — terpenes with five-carbon molecules called isoprenes and also include a drying oil or solvent to reduce drying time.

Although furniture and flooors are still the most frequently varnished items, the wooden hulls of boats are also often varnished. Clear nail polish, a type of varnish, can be used for countless small fixes: dab small amounts to keep splintered wood from snagging, prevent ink from running, and stop buttons on clothing or screws on sunglasses from coming loose.

(National Geographic Special Publication “How Things Work” Adapted.)

In “water-based varieties do not” DO NOT means:

A Polipose Adenomatosa Familiar (PAF) é a síndrome de polipose hereditária mais comum. O teste genético indicado no rastreamento da PAF é: