(Unesp 2003) Conhecendo-se os valores aproximados dos logaritmos decimais, e , ento, o valor de :
Sejam A e B matrizes quadradas de ordem 3. Se e B é tal que B-1=2A, o determinante de B será
(Unesp 2003) Na convenção de um partido para lançamento da candidatura de uma chapa ao governo de certo estado havia 3 possíveis candidatos a governador, sendo dois homens e uma mulher, e 6 possíveis candidatos a vice-governador, sendo quatro homens e duas mulheres. Ficou estabelecido que a chapa governador/vice-governador seria formada por duas pessoas de sexos opostos. Sabendo que os nove candidatos são distintos, o número de maneiras possíveis de se formar a chapa é
(UNESP 2003) A Histona H4 uma protena presente nas clulas dos eucariotos. Esta protena participa da compactao do DNA em cromossomos, quando da diviso celular. Em termos evolutivos, so bastante conservadas, ou seja, nos mais diferentes organismos a Histona H4 tem praticamente a mesma composio e sequncia de aminocidos. As Histonas H4 do boi e da ervilha, por exemplo, diferem em apenas dois de seus 102 aminocidos. A partir do exposto, e considerando que o cdigo gentico degenerado (mais de uma trinca de bases pode codificar para o mesmo aminocido), correto afirmar que, no boi e na ervilha, os segmentos de DNA que codificam a Histona H4:
(Unesp 2003) O clima da Europa Ocidental é bem diferente do clima da Europa Oriental. Enquanto na primeira os invernos são suaves e os verões apresentam temperaturas não tão elevadas, na segunda as diferenças sazonais são maiores, com invernos mais rigorosos, temperaturas mais baixas e verões mais quentes. O fator determinante das condições climáticas vigentes na Europa Ocidental é a
(Unesp 2003) Seja a matriz onde a, b, c e d IR. Se os números a, b, c e d, nesta ordem, constituem uma P.G. de razão q, o determinante desta matriz é igual a
(UNESP - 2002) Uma concessionria vendeu no ms de outubro n carros do tipo A e m carros do tipo B, totalizando 216 carros. Sabendo-se que o nmero de carros vendidos de cada tipo foi maior do que 20, que foram vendidos menos carros do tipo A do que do tipo B, isto , n m, e que MDC(n,m)=18, os valores de n e m so, respectivamente:
(Unesp 2002) Considere três lojas, L1, L2 e L3, e três tipos de produtos, P1, P2 e P3. A matriz a seguir descreve a quantidade de cada produto vendido por cada loja na primeira semana de dezembro. Cada elemento aij da matriz indica a quantidade do produto Pi vendido pela loja Lj, i, j = 1, 2, 3. Analisando a matriz, podemos afirmar que
(UNESP 2002) Observe a tabela. ESPÉCIES EM INTERAÇÃO TIPO DE INTERAÇÃO 1. cupins x protozoários I. Predatismo 2. boi x ovelha II. Mutualismo 3. sapo x mosca III. Comensalismo 4. rêmora x tubarão IV. Competição Indique a alternativa que associa os tipos de interação com as interações descritas.
(UNESP -2002) APPROPRIATE FOR ALL AGES Japanese toymakers are focusing on senior citizens by Hideko Takayama Much has been made in Japan of the clout of teenage girls, the arbiters of taste and uncrowned queens of the fashion industry. But when it comes to toys, a radically different demographic is beginning to call the shots. Japanese toymakers now see senior citizens as their most dynamic market. Nearly 22 million Japanese - 17.4 percent of the population - are over 65, and that number is expected to top 25 percent by 2020. Three million senior citizens live alone, and 1.55 million Japanese are senile (their numbers are also expected to grow rapidly). This aging population presents a huge silver market - estimated at 50 trillion yen (US 416 billion) - for everything from beds to cosmetics to home-care nurses and helpers. Major industries such as electronics, construction and foodstuffs have already begun developing products tailored to old folks: robots to help out around the house, homes that have no steps or stairs and healthy, oil-free foods. The toy industry wants a piece of the action. There is a great potential, says Yoshinori Haga, an official at Bandai, the biggest toymaker in Japan. Toys can be used for entertainment, to give the old people nostalgic feelings or to be a companion for those who live alone. (...) Indeed, playthings are not just for fun anymore. Toshimitsu Musha, president of the Brain Functions Lab near Tokyo, argues that playing with toys can help human brains stay active and sharp. While researching Alzheimers disease, Musha found that art therapy such as painting and claywork helped to prevent the brains of Alzheimers patients from deteriorating. What works best for the elderly is something that they enjoy, where they have to use their brain and which requires concentration from 30 minutes to one hour, he says. Toymakers still face a critical problem, though: the average household saving among seniors is 24 million yen (US 200,000), almost double that of a working household, but they are far more cautious about what they buy than teens. The key may be appealing to a younger generation, who every year are stumped for gift ideas before Septembers Respect for the Aged Day. In the end, teens may have to jump-start this trend, too. (Newsweek. August 6, 2001, p. 48.) GROWING OLD IN CYBERSPACE Senior citizens, long overlooked, are the latest target market on the Web By Staff Writer Martha Slud As more and more senior citizens go online, Web developers and marketers are beginning to pay more attention to what they can offer older people, and how to bring Internet service to a population that has been among the slowest to embrace the computer. While their numbers are still relatively small, online seniors are an attractive target from a marketing point of view for several reasons. Many retired people are logging a significant amount of time each day on the Web; they are a well-educated population; and they often have discretionary dollars to spend on travel, financial services and other growing sectors of electronic commerce. No ones really addressed seniors on the Internet, and really, why should they? said William Belhumeur, president of San Francisco-based Seniors.com. Theyve been attentive to the groups that have picked it up first; nows really the time to start picking up the later adopters. (...) But there still are numerous barriers to building up the senior market online, said Ekaterina Walsh, an analyst at Internet research firm Forrester Research. Some of the e-commerce categories considered most likely to appeal to seniors - such as online purchases of prescription drugs or groceries - are in fact the least likely sectors for new Web users to explore, she said. The problem is that with age, people become more pessimistic toward technology, she said. It doesnt mean that its not possible, but marketers who are looking at attracting this particular segment, should be very careful in emphasizing two things - ease of use and value. (...) Several companies are trying to break through the technological barrier by bringing Web technology to retirement homes and other senior facilities, in hopes of providing easier, streamlined Internet access to older people. (...) Andrew Egan, president of Adventura Publishing, which operates Senior-Citizen.com, predicted that senior citizen offerings on the Web are going to mushroom as older people get more comfortable going on the Internet. I think youre going to see a lot of senior Web sites coming online, he said. A lot of people are trying to capitalize on it. (Extrado de CNN America, INC. 2001. http://cnnfn.com/2000/02/02/senior_living/ q_retire_internet/) The text suggests that its time to start being more attentive to the senior citizens who enjoy ........... online.
(UNESP) Assinale a alternativa correta:
(Unesp 2002) Na Idade Moderna, o processo de colonização europeia das regiões do continente americano não foi uniforme. Pode-se distingui-las em áreas de
(UNESP 2002) Considere um grupo de pessoas com caractersticas homogneas no que serefere cor de pele. Assinale a alternativa, dentre as apresentadas, que corresponde spessoas desse grupo que tm maior chance de apresentar deficincia de vitamina D e queesto mais sujeitas a fraturas sseas.
(UNESP - 2002) Certos utenslios de usohospitalar, feitos com polmerossintticos, devem ser destrudos porincinerao em temperaturas elevadas. essencial que o polmero,escolhido para a confeco dessesutenslios, produza a menor poluiopossvel quando os utensliosso incinerados.Com base nesse critrio, dentre ospolmeros de frmulas gerais, podemser empregados na confecodesses utenslios hospitalares:
(UNESP -2002) APPROPRIATE FOR ALL AGES Japanese toymakers are focusing on senior citizens by Hideko Takayama Much has been made in Japan of the clout of teenage girls, the arbiters of taste and uncrowned queens of the fashion industry. But when it comes to toys, a radically different demographic is beginning to call the shots. Japanese toymakers now see senior citizens as their most dynamic market. Nearly 22 million Japanese - 17.4 percent of the population - are over 65, and that number is expected to top 25 percent by 2020. Three million senior citizens live alone, and 1.55 million Japanese are senile (their numbers are also expected to grow rapidly). This aging population presents a huge silver market - estimated at 50 trillion yen ($416 billion) - for everything from beds to cosmetics to home-care nurses and helpers. Major industries such as electronics, construction and foodstuffs have already begun developing products tailored to old folks: robots to help out around the house, homes that have no steps or stairs and healthy, oil-free foods. The toy industry wants a piece of the action. There is a great potential, says Yoshinori Haga, an official at Bandai, the biggest toymaker in Japan. Toys can be used for entertainment, to give the old people nostalgic feelings or to be a companion for those who live alone. (...) Indeed, playthings are not just for fun anymore. Toshimitsu Musha, president of the Brain Functions Lab near Tokyo, argues that playing with toys can help human brains stay active and sharp. While researching Alzheimers disease, Musha found that art therapy such as painting and claywork helped to prevent the brains of Alzheimers patients from deteriorating. What works best for the elderly is something that they enjoy, where they have to use their brain and which requires concentration from 30 minutes to one hour, he says. Toymakers still face a critical problem, though: the average household saving among seniors is 24 million yen ($200,000), almost double that of a working household, but they are far more cautious about what they buy than teens. The key may be appealing to a younger generation, who every year are stumped for gift ideas before Septembers Respect for the Aged Day. In the end, teens may have to jump-start this trend, too. (Newsweek. August 6, 2001, p.48.) Texto 2: GROWING OLD IN CYBERSPACE Senior citizens, long overlooked, are the latest target market on the Web By Staff Writer Martha Slud As more and more senior citizens go online, Web developers and marketers are beginning to pay more attention to what they can offer older people, and how to bring Internet service to a population that has been among the slowest to embrace the computer. While their numbers are still relatively small, online seniors are an attractive target from a marketing point of view for several reasons. Many retired people are logging a significant amount of time each day on the Web; they are a well-educated population; and they often have discretionary dollars to spend on travel, financial services and other growing sectors of electronic commerce. No ones really addressed seniors on the Internet, and really, why should they? said William Belhumeur, president of San Francisco-based Seniors.com. Theyve been attentive to the groups that have picked it up first; nows really the time to start picking up the later adopters. (...) But there still are numerous barriers to building up the senior market online, said Ekaterina Walsh, an analyst at Internet research firm Forrester Research. Some of the e-commerce categories considered most likely to appeal to seniors - such as online purchases of prescription drugs or groceries - are in fact the least likely sectors for new Web users to explore, she said. The problem is that with age, people become more pessimistic toward technology, she said. It doesnt mean that its not possible, but marketers who are looking at attracting this particular segment, should be very careful in emphasizing two things - ease of use and value. (...) Several companies are trying to break through the technological barrier by bringing Web technology to retirement homes and other senior facilities, in hopes of providing easier, streamlined Internet access to older people. (...) Andrew Egan, president of Adventura Publishing, which operates Senior-Citizen.com, predicted that senior citizen offerings on the Web are going to mushroom as older people get more comfortable going on the Internet. I think youre going to see a lot of senior Web sites coming online, he said. A lot of people are trying to capitalize on it. (Extrado de CNN America, INC. 2001. http://cnnfn.com/2000/02/02/senior_living/q_retire_internet/) There are some barriers that prevent senior citizens ........... taking part in an online market.