Questões - IME 2008 | Gabarito e resoluções

(IME - 2008/2009) Assinale a alternativa correta.

(IME - 2008/2009 - 1 FASE) Leia o texto e resolva as questes que o seguem. E-NOSES Adapted from IEEE Spectrum, 03.08 Several hundred years ago, village doctors in rural China diagnosed diabetes by the characteristically sweet smell of a patients breath. Today hospitals use a battery of blood tests and laboratory analyses to make that same diagnosis, but doctors may soon be sniffing their patients breath again. This time the doctors will have electronic noses small and cheap enough to carry in their pockets. This e-nose will be the culmination of decades of work at countless laboratories, where researchers have sought to create a tiny, cheap, automatic sniffer that would let wine bottles monitor the aging of their contents, allow meat packages to flag spoilage, and enable mailboxes to check for bombs. Imagine barroom coasters that double as Breathalyzers, bumper stickers that monitor car emissions. Until now, its been just so much sci-fi. E-nose technology has quietly advanced during the past two decades. Commercial models equipped with sensor arrays came to market in the mid-1990s, and today theyre used to distinguish wines, analyze food flavors, and sort lumber. Benchtop systems are also used in the pharmaceutical, food, cosmetics, and packaging industries, while smaller, portable unitsare used to monitor air quality. But these noses cost in the range of US $5000 to 100,000. A coming convergence between e-nose technology and advances in printed electronics will finally bring the price down way down. Within a decade well see e-noses that cost tens of dollars and appear in smart packaging for high-end items like pharmaceuticals or as part of intelligent or interactive appliancespicture a refrigerator that knows when milk has gone bad. Prices could easily drop to under a dollar by 2020. The secret? Conducting polymers. Developers of both electronic noses and printed electronics are exploiting these materials, which can be sensitive to the chemicals that make up odors and are also capable of producing electrical signals. E-nose developers are concentrating on honing the sensing properties of conducting polymers, while the printed-electronics people are investigating ways of using these materials to fabricate ultralow-cost electronics. Combining the fruits of these two separate efforts will finally bring e-noses into our supermarkets, homes, and daily life. Escolha a palavra ou expresso que apresenta um significado DIFERENTE do significado da palavra sublinhada em: This e-nose will be the culmination of decades of work at countless laboratories

(IME - 2008/2009) Considere a seqncia de reaes e o perfil energtico associados ao processo de oxidao do dixido de enxofre. A alternativa que apresenta corretamente os compostos no estgio II, o catalisador e a lei de velocidade para a reao global Obs:. Escolha, no gabarito da plataforma, a opo que marca corretamente os itens tomando como referncia a seguinte tabela:

(IME - 2008/2009 - 1 FASE) Leia o texto e resolva as questes que o seguem. E-NOSES Adapted from IEEE Spectrum, 03.08 Several hundred years ago, village doctors in rural China diagnosed diabetes by the characteristically sweet smell of a patients breath. Today hospitals use a battery of blood tests and laboratory analyses to make that same diagnosis, but doctors may soon be sniffing their patients breath again. This time the doctors will have electronic noses small and cheap enough to carry in their pockets. This e-nose will be the culmination of decades of work at countless laboratories, where researchers have sought to create a tiny, cheap, automatic sniffer that would let wine bottles monitor the aging of their contents, allow meat packages to flag spoilage, and enable mailboxes to check for bombs. Imagine barroom coasters that double as Breathalyzers, bumper stickers that monitor car emissions. Until now, its been just so much sci-fi. E-nose technology has quietly advanced during the past two decades. Commercial models equipped with sensor arrays came to market in the mid-1990s, and today theyre used to distinguish wines, analyze food flavors, and sort lumber. Benchtop systems are also used in the pharmaceutical, food, cosmetics, and packaging industries, while smaller, portable unitsare used to monitor air quality. But these noses cost in the range of US $5000 to 100,000. A coming convergence between e-nose technology and advances in printed electronics will finally bring the price down way down. Within a decade well see e-noses that cost tens of dollars and appear in smart packaging for high-end items like pharmaceuticals or as part of intelligent or interactive appliancespicture a refrigerator that knows when milk has gone bad. Prices could easily drop to under a dollar by 2020. The secret? Conducting polymers. Developers of both electronic noses and printed electronics are exploiting these materials, which can be sensitive to the chemicals that make up odors and are also capable of producing electrical signals. E-nose developers are concentrating on honing the sensing properties of conducting polymers, while the printed-electronics people are investigating ways of using these materials to fabricate ultralow-cost electronics. Combining the fruits of these two separate efforts will finally bring e-noses into our supermarkets, homes, and daily life. De acordo com o contedo do texto E-nose, qual das seguintes frases provvel ser encontrada no texto?

(IME - 2008/2009) Assinale a alternativa correta.

(IME - 2008/2009)A neocarzinostatina uma molcula da famlia das enediinas que so produtos naturais isolados de microrganismos e apresentam poderosa atividade anti-tumoral, por serem capazes de agir como intercalantes nas molculas de DNA, interrompendo, dessa forma, o rpido crescimento celular caracterstico das clulas tumorais. Analisando a estrutura da neocarzinostatina acima, pode-se afirmar que esta forma cannica da molcula possui

(IME - 2008/2009 - 1 FASE) Leia o texto e resolva as questes que o seguem. E-NOSES Adapted from IEEE Spectrum, 03.08 Several hundred years ago, village doctors in rural China diagnosed diabetes by the characteristically sweet smell of a patients breath. Today hospitals use a battery of blood tests and laboratory analyses to make that same diagnosis, but doctors may soon be sniffing their patients breath again. This time the doctors will have electronic noses small and cheap enough to carry in their pockets. This e-nose will be the culmination of decades of work at countless laboratories, where researchers have sought to create a tiny, cheap, automatic sniffer that would let wine bottles monitor the aging of their contents, allow meat packages to flag spoilage, and enable mailboxes to check for bombs. Imagine barroom coasters that double as Breathalyzers, bumper stickers that monitor car emissions. Until now, its been just so much sci-fi. E-nose technology has quietly advanced during the past two decades. Commercial models equipped with sensor arrays came to market in the mid-1990s, and today theyre used to distinguish wines, analyze food flavors, and sort lumber. Benchtop systems are also used in the pharmaceutical, food, cosmetics, and packaging industries, while smaller, portable unitsare used to monitor air quality. But these noses cost in the range of US $5000 to 100,000. A coming convergence between e-nose technology and advances in printed electronics will finally bring the price down way down. Within a decade well see e-noses that cost tens of dollars and appear in smart packaging for high-end items like pharmaceuticals or as part of intelligent or interactive appliancespicture a refrigerator that knows when milk has gone bad. Prices could easily drop to under a dollar by 2020. The secret? Conducting polymers. Developers of both electronic noses and printed electronics are exploiting these materials, which can be sensitive to the chemicals that make up odors and are also capable of producing electrical signals. E-nose developers are concentrating on honing the sensing properties of conducting polymers, while the printed-electronics people are investigating ways of using these materials to fabricate ultralow-cost electronics. Combining the fruits of these two separate efforts will finally bring e-noses into our supermarkets, homes, and daily life. Qual o significado do seguinte fragmento retirado do texto E-nose: Imagine barroom coasters that double as Breathalyzers?

(IME - 2008/2009 - 1 FASE) Leia o texto e resolva as questes que o seguem. E-NOSES Adapted from IEEE Spectrum, 03.08 Several hundred years ago, village doctors in rural China diagnosed diabetes by the characteristically sweet smell of a patients breath. Today hospitals use a battery of blood tests and laboratory analyses to make that same diagnosis, but doctors may soon be sniffing their patients breath again. This time the doctors will have electronic noses small and cheap enough to carry in their pockets. This e-nose will be the culmination of decades of work at countless laboratories, where researchers have sought to create a tiny, cheap, automatic sniffer that would let wine bottles monitor the aging of their contents, allow meat packages to flag spoilage, and enable mailboxes to check for bombs. Imagine barroom coasters that double as Breathalyzers, bumper stickers that monitor car emissions. Until now, its been just so much sci-fi. E-nose technology has quietly advanced during the past two decades. Commercial models equipped with sensor arrays came to market in the mid-1990s, and today theyre used to distinguish wines, analyze food flavors, and sort lumber. Benchtop systems are also used in the pharmaceutical, food, cosmetics, and packaging industries, while smaller, portable unitsare used to monitor air quality. But these noses cost in the range of US $5000 to 100,000. A coming convergence between e-nose technology and advances in printed electronics will finally bring the price down way down. Within a decade well see e-noses that cost tens of dollars and appear in smart packaging for high-end items like pharmaceuticals or as part of intelligent or interactive appliancespicture a refrigerator that knows when milk has gone bad. Prices could easily drop to under a dollar by 2020. The secret? Conducting polymers. Developers of both electronic noses and printed electronics are exploiting these materials, which can be sensitive to the chemicals that make up odors and are also capable of producing electrical signals. E-nose developers are concentrating on honing the sensing properties of conducting polymers, while the printed-electronics people are investigating ways of using these materials to fabricate ultralow-cost electronics. Combining the fruits of these two separate efforts will finally bring e-noses into our supermarkets, homes, and daily life. Qual dos ttulos seguintes pode ser usado apropriadamente para substituir o ttulo do texto E-nose?

(IME - 2008/2009) Assinale a alternativa correta.