Pular para o conteúdo

Instituição

Questões: Universidade Estadual do Ceará (UECE) — com gabarito

4.981 questões de Universidade Estadual do Ceará (UECE), de 2009 a 2026. Cada uma tem página própria, com enunciado completo, alternativas e gabarito — e dá para responder na própria página.

  • 4.981 questões
  • 17 provas

Resultados: 4.981 questões

Página 10 de 250

  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    Although this new study has found some important aspects, it
    Escolha uma alternativa para a questão 0312a03e-03
  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    Regarding social sensitivity, Dr. Eva H. Telzer points out that some of the negative consequences might be
    Escolha uma alternativa para a questão 03156460-03
  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    Jeff Hancock, from the Stanford Social Media Lab, believes that using social media
    Escolha uma alternativa para a questão 0317e975-03
  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    In the study involving 169 North Carolina school students who had brain scans 3 times, the teens who check social media frequently showed a/an
    Escolha uma alternativa para a questão 031a6321-03
  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    According to Dr. Telzer, engaging in social media is the new norm, but despite the many studies made in the last decade, researchers
    Escolha uma alternativa para a questão 031ceff2-03
  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    Dr. Telzer, regarding teens who check social media often, stated that they show
    Escolha uma alternativa para a questão 031f9229-03
  • Linguagens

    Inglês

    T E X T


    Social Media Use Is Linked to Brain Changes in Teens, Research Finds




        The effect of social media use on children is a fraught area of research, as parents and policymakers try to ascertain the results of a vast experiment already in full swing. Successive studies have added pieces to the pu    zzle, fleshing out the implications of a nearly constant stream of virtual interactions beginning in childhood.

        A new study by neuroscientists at the University of North Carolina tries something new, conducting successive brain scans of middle schoolers between the ages of 12 and 15, a period of especially rapid brain development. 

        The researchers found that children who habitually checked their social media feeds at around age 12 showed a distinct trajectory, with their sensitivity to social rewards from peers heightening over time. Teenagers with less engagement in social media followed the opposite path, with a declining interest in social rewards.

        The study has important limitations, the authors acknowledge. Because adolescence is a period of expanding social relationships, the brain differences could reflect a natural pivot toward peers, which could be driving more frequent social media use.

        “We can’t make causal claims that social media is changing the brain,” said Eva H. Telzer, an associate professor of psychology and neuroscience at the University of North Carolina, Chapel Hill, and one of the authors of the study.

        But, she added, “teens who are habitually checking their social media are showing these pretty dramatic changes in the way their brains are responding, which could potentially have long-term consequences well into adulthood, sort of setting the stage for brain development over time.”

        A team of researchers studied an ethnically diverse group of 169 students in the sixth and seventh grades from a middle school in rural North Carolina, splitting them into groups according to how often they reported checking Facebook, Instagram and Snapchat feeds.

        At around age 12, the students already showed distinct patterns of behavior. Habitual users reported checking their feeds 15 or more times a day; moderate users checked between one and 14 times; nonhabitual users checked less than once a day.

        The subjects received full brain scans three times, at approximately one-year intervals, as they played a computerized game that delivered rewards and punishment in the form of smiling or scowling peers. While carrying out the task, the frequent checkers showed increasing activation of three brain areas: reward-processing circuits, which also respond to experiences like winning money or risk-taking behavior; brain regions that determine salience, picking out what stands out in the environment; and the prefrontal cortex, which helps with regulation and control.

        The results showed that “teens who grow up checking social media more often are becoming hypersensitive to feedback from their peers,” Dr. Telzer said. Social sensitivity could be adaptive, showing that the teenagers are learning to connect with others; or it could lead to social anxiety and depression if social needs are not met.

        “They are showing that the way you use it at one point in your life does influence the way your brain develops, but we don’t know by how much, or whether it’s good or bad,” said Jeff Hancock, the founding director of the Stanford Social Media Lab, who was not involved in the study. He said that many other variables could have contributed to these changes. He described the paper as “a very sophisticated piece of work,” contributing to research that has emerged recently showing that sensitivity to social media varies from person to person.

        Over the last decade, social media has remapped the central experiences of adolescence, a period of rapid brain development. Researchers have documented a range of effects on children’s mental health. Some studies have linked use of social media with depression and anxiety, while others found little connection.

        Without more information about other aspects of the students’ lives, “it is challenging to discern how specific differences in brain development are to social media checking,” said Adriana Galvan, a specialist in adolescent brain development at the University of California Los Angeles, who was not involved in the study.

        Dr. Telzer, one of the study’s authors, described the rising sensitivity to social feedback as “neither good nor bad.” “It’s helping them connect to others and obtain rewards from the things that are common in their social world, which is engaging in social interactions online,” she said. This is the new norm,” she added. “Understanding how this new digital world is influencing teens is important. It may be associated with changes in the brain, but that may be for good or for bad. We don’t necessarily know the long-term implications yet.” 


     Adapted from: https://www.nytimes.com/2023/01/03/

     

    According to Adriana Galvan, a specialist in adolescent brain development, it is a challenge to distinguish how specific differences in brain development are to social media checking without
    Escolha uma alternativa para a questão 03224540-03
  • Ciências Humanas

    Geografia

    “Na cartografia, os mapas têm características específicas que os classificam e representam elementos selecionados de um determinado espaço geográfico, de forma reduzida, utilizando simbologia e projeção cartográfica.”

    Archela, R. S.; Théry, H. Disponível em:http://confins.revue.org/index3483.html


    O excerto acima é parte do trabalho intitulado “Orientação metodológica para construção e leitura de mapas temáticos”. Considerando os aspectos que envolvem a cartografia, tipos e usos de mapas, analise as seguintes afirmações:


      I. Os mapas são veículos de transmissão do conhecimento que pode ser o mais amplo e variado possível ou o mais restrito e objetivo possível.
     II. A elaboração de mapas temáticos abrange etapas como a coleta de dados, análise, interpretação e representação das informações, entre outras, sobre um mapa base.
    III. O nível de organização dos dados, qualitativos, ordenados ou quantitativos, de um mapa está diretamente relacionado ao método de mapeamento e à utilização de variáveis visuais adequadas a sua representação.



    É correto o que se afirma em
    Escolha uma alternativa para a questão 039ea05e-9e
  • Ciências Humanas

    Geografia

    “É importante ressaltar o caráter de interdependência que caracteriza os principais problemas ambientais que assolam os centros urbanos. As questões decorrentes da expansão urbana extensiva e desordenada internas a uma sub-bacia hidrográfica, por exemplo, se transferem indistintamente aos inúmeros corpos d’água que a recobrem e podem extravasar a escala local atingindo toda a macrobacia à qual pertencem.”

    Silva, L.; Travassos, L. (2012). Disponível em:https:// revistas.pucsp.br/index.php/metropole/article/view/8708/



    Considerando o texto acima, é correto dizer que, durante o período chuvoso, os problemas ambientais urbanos mais expressivos nas bacias hidrográficas envolvem 
    Escolha uma alternativa para a questão 03a25517-9e
  • Com a globalização da economia, as relações de produção e consumo têm se contraposto, cada vez mais, à dinâmica da natureza e provocado degradação. Isso tem ocorrido nas mais diversas escalas espaciais e temporais, mesmo existindo um conjunto de normas e leis que regulamentam o uso dos ambientes naturais em vários países, além dos acordos e tratados internacionais que versam sobre a conservação da natureza.


    Considerando essa realidade, assinale a opção que corresponde a práticas ambientalmente sustentáveis.
    Escolha uma alternativa para a questão 03a4c772-9e
  • Ciências Humanas

    Geografia

    “As queimadas na Amazônia em 2020 já ultrapassaram o total registrado de janeiro a dezembro do ano passado. Foram 89.604 focos de calor detectados pelos satélites monitorados pelo Instituto Nacional de Pesquisas Espaciais (Inpe) até esta quinta-feira (22), contra 89.176 em 2019.”

    Dantas, C. Disponível em: https://g1.globo.com/ natureza/amazonia/noticia/2020/10/22/


    Considerando os impactos espaciais e temporais das queimadas e as possíveis ações de mitigação destas práticas, atente para as seguintes afirmações:


      I. Algumas das consequências associadas diretamente às queimadas são, problemas respiratórios, atraso no início das chuvas, fechamento de aeroportos, queda de linhas de transmissão de energia elétrica e acidentes rodoviários.
     II. No nível global, as queimadas contribuem para a intensificação do efeito estufa ao liberar para a atmosfera parte do carbono que estava fixado na biomassa.
    III. Os mapas de localização dos focos de calor são gerados a partir de imagens de sensores embarcados em satélites meteorológicos. Contudo, a geração e disponibilização dessas informações não possui utilidade no combate às queimadas no Brasil.


    É correto somente o que se afirma em
    Escolha uma alternativa para a questão 03a71176-9e
  • Ciências Humanas

    Geografia

    “Ao norte do Maciço da Borborema, no Nordeste Brasileiro, vários campos de inselbergues caracterizam as depressões sertanejas. [...] Em Quixadá, no estado do Ceará, ocorre um dos mais representativos campos de inselbergues do Brasil.”

    Maia, R. P. et al. Revista Brasileira de Geomorfologia, São Paulo, v.16, n.2, (Abr-Jun), p.239-253, 2015.



    Considerando as relações entre os aspectos do relevo, a estrutura geológica e as condições geoambientais presentes nos campos de inselbergues supracitados, atente para as seguintes afirmações:

       I. Esses relevos ocorrem principalmente em áreas de intrusões graníticas que atualmente estão sendo exumadas pela erosão diferencial.
     II. Todas essas ocorrências estão associadas a um embasamento sedimentar, resultante de intrusões que afetaram a Província Borborema no Pré-Cambriano.
    III. Os inselbergues podem ser considerados como massas rochosas, em geral côncavoconvexas ou fraturadas, formadas pela exposição subaérea de um batólito granítico.


    É correto o que se afirma em 
    Escolha uma alternativa para a questão 03a9901c-9e
  • Ciências Humanas

    Geografia

    Erosão é um processo que possui causas multifatoriais, tornando-se um problema verificado em diversos tipos de solo em todo Brasil. Com a erosão, ocorrem impactos diversos que se refletem em perdas agrícolas, deterioração de áreas urbanas, comprometimento de alguns setores em bacias hidrográficas, entre outros. Com o avanço e a consolidação de pesquisas que investigam esse problema, surgiram estratégias, técnicas e práticas de manejo e conservação do solo tais como 
    Escolha uma alternativa para a questão 03ac28d4-9e
  • Ciências Humanas

    Geografia

    Atente para descrição contida no seguinte excerto: “[...] uma feição morfológica, desenvolvida durante períodos em que as condições climáticas favoreceram a operação de processos hidrodinâmicos e de meteorização específicos, que propiciaram a elaboração de uma superfície de erosão, ligeiramente inclinada, contando todas as estruturas e rochas, independentemente de sua natureza”.


    Passos, E.; Bigarella J. J. Superfícies de erosão. In: Geomorfologia do Brasil. Cunha, S. B.; Guerra, A, J, T.
    (org.)3° ed. Rio de Janeiro. Bertrand Brasil. 2003.



    O trecho acima refere-se a uma feição morfológica ou superfície de erosão conhecida como
    Escolha uma alternativa para a questão 03ae4b7e-9e
  • Ciências Humanas

    Geografia

    Atente para o seguinte excerto que aponta algumas características do bioma pantanal: “O Pantanal cobre cerca de 140.000 Km2 da Bacia do Alto Rio Paraguai e seus tributários, e caracteriza-se como uma das maiores áreas alagadas contínuas do planeta, reconhecida como Patrimônio Nacional pela Constituição de 1988, como Área Úmida de Importância Internacional pela Convenção Ramsar, e como Reserva da Biosfera e Patrimônio Natural da Humanidade pela Unesco”.


    https://www.sema.rs.gov.br/upload/arquivos/201707/041 2907-areas-proritarias-para-conservacao-da-
    biodiversidade-ministerio-do-meio-ambiente.pdf



    Sobre esse importante ambiente, presente no território brasileiro, é correto afirmar que 
    Escolha uma alternativa para a questão 03b06f6f-9e
  • Ciências Humanas

    Geografia

    No território brasileiro, ocorre uma diversidade complexa de macro unidades de relevo que se relacionam com a estrutura geológica e com muitos outros fatores externos. Considerando os planaltos em bacias sedimentares como uma dessas macroestruturas de relevo, é correto afirmar que 
    Escolha uma alternativa para a questão 03b2e67d-9e
  • Ciências Humanas

    Geografia

    A geomorfologia fluvial compreende o estudo das formas relacionadas ao escoamento fluvial e seus diversos processos correlatos, englobando o estudo dos rios e das bacias hidrográficas.


    Considerando essa área, que se relaciona com estrutura geológica, formas de relevo e corpos hídricos, analise as seguintes afirmações:

      I. O escoamento fluvial não é parte do processo circulatório da água, mesmo que sua alimentação se dê através das águas superficiais e subterrâneas.

     II. Um determinado ambiente pode conter mais de uma bacia hidrográfica drenando-o para um reservatório final comum, como o oceano.

    III. Os padrões de drenagem são arranjos espaciais dos cursos fluviais fortemente influenciados pela atividade morfogenética, como características litológicas e evolução geomorfológica.


    É correto o que se afirma em 
    Escolha uma alternativa para a questão 03b5c5ae-9e
  • Ciências Humanas

    Geografia

    Escreva V ou F, conforme seja verdadeiro ou falso o que se afirma a seguir a respeito da dimensão geográfica e geoeconômica da globalização.



    ( ) Há uma crescente interdependência dos mercados, resultante da abertura das economias nacionais e do avanço tecnológico dos meios de transportes e comunicações, o que tornou a circulação mais rápida, intensificando os fluxos de mercadorias, capitais e informações.

    ( ) O novo espaço industrial se caracteriza por funcionar em rede e, embora a gestão empresarial seja mantida nas principais metrópoles globais, a produção está em processo de desconcentração com reconcentração em regiões e países de mão de obra barata.

    ( ) A dimensão cultural da globalização provoca uma certa padronização dos costumes, tendo como referência os hábitos das economias capitalistas centrais, porém, não sem resistências e readequações em alguns países.

    ( ) Há um fortalecimento das corporações transnacionais, pois estas assumem várias funções que antes eram exercidas pelos Estados, como o controle dos meios de comunicação e energia, eliminando as fronteiras políticas e econômicas dos Estados Nacionais.


    Está correta, de cima para baixo, a seguinte sequência:
    Escolha uma alternativa para a questão 03b9359e-9e
  • Ciências Humanas

    Geografia

    Leia atentamente os seguintes excertos:


    “[...] as dinâmicas da natureza tornaram-se de tal modo dependentes da atividade antrópica, que não se pode mais, no limite, falar propriamente de ‘natureza’ como algo irredutivelmente diverso da esfera do humano [...]”; “Um mundo feito à imagem e semelhança do homem contemporâneo está nascendo sob nossos olhos [...]. Com ele se abole a cisão, inaugural na consciência de si do homem, entre a esfera do humano e a do não humano”; “[Nele], a natureza deixou de ser uma variável independente do homem e se tornou, em última instancia, uma relação social”.


    MARQUES, Luiz. Capitalismo e colapso ambiental.
    Campinas: Ed. da Unicamp, 2015, pp. 581, 595 e 400.


    Os excertos acima fazem referência a uma nova época do período geológico quaternário, denominada
    Escolha uma alternativa para a questão 03bc2524-9e
  • A partir de uma análise de conjuntura, relacione, corretamente, os casos recentes que demarcaram importantes mudanças no quadro geopolítico da América do Sul aos diferentes países onde se manifestaram, numerando as afirmações abaixo, de acordo com a seguinte indicação:


    1. Bolívia
    2. Peru
    3. Venezuela
    4. Argentina

    ( ) Após o retorno de um governo de centro-esquerda ao poder no país mergulhado em crise econômica e alto índice de desemprego herdados do último governo de características neoliberais, medidas tais como taxação de grandes fortunas, congelamento de preços e intervenção em empresas etc. vem sendo tomadas no país.

    ( ) Após uma onda de crise política que marcou o final do último governo eleito, uma nova eleição legitimou em primeiro turno à volta ao poder de um governo de esquerda, do mesmo partido do ex-presidente, que agora tem como foco resolver os problemas internos daquele país.

    ( ) O país arrasta-se em meio a uma crise política decorrente de corrupção, tendo vários políticos investigados pela Operação Lava Jato. Empresas como Odebrecht e Braskem admitem ter pagado milhões em propina para obterem favorecimentos ilícitos, envolvendo diretamente seu ex-presidente e a líder do principal partido do país, o que levou a uma crise, em 2016, fazendo a disputa entre o então governo e oposição se acirrar profundamente.

    ( ) O atual governo, com baixíssima legitimidade, enfrenta a pior crise da história moderna do país, cuja economia vem sendo assolada por inflação exorbitante, e a sociedade por carestias em todos os setores, fuga de investimentos, radicalização e perseguição política e aguda crise social.



    A sequência correta, de cima para baixo, é:
    Escolha uma alternativa para a questão 03be95db-9e