Questões de Concursos UEMG

Brazil must legalise drugs – its existing policy just destroys lives

For decades, guns and imprisonment have been the hallmarks of Brazil’s war against the drug trafficking. But the only way to beat the gangs is to stop creating criminals, says a top Brazilian judge

“The war raging in Rocinha, Latin America’s largest favela, has already been lost. Rooted in a dispute between gangs for control of drug trafficking, it has disrupted the daily life of the community in Rio de Janeiro since mid-September. With the sound of shots coming from all sides, schools and shops are constantly forced to close. Recently, a stray bullet killed a Spanish tourist. The war is not the only thing being lost.

For decades, Brazil has had the same drug policy approach. Police, weapons and numerous arrests. It does not take an expert to conclude the obvious: the strategy has failed. Drug trafficking and consumption have only increased. […]

In a case still before the Brazilian supreme court, I voted for decriminalising the possession of marijuana for private consumption. […]

Drugs are an issue that has a profound impact on the criminal justice system, and it is legitimate for the supreme court to participate in the public debate. So here are the reasons for my views.

First, drugs are bad and it is therefore the role of the state and society to discourage consumption, treat dependents and repress trafficking. The rationale behind legalisation is rooted in the belief that it will help in achieving these goals.

Second, the war on drugs has failed. Since the 1970s, under the influence and leadership of the US, the world has tackled this problem with the use of police forces, armies, and armaments. The tragic reality is that 40 years, billions of dollars, hundreds of thousands of prisoners and thousands of deaths later, things are worse. At least in countries like Brazil.

Third, as the American economist Milton Friedman argued, the only result of criminalisation is ensuring the trafficker’s monopoly.

With these points in mind, what would legalisation achieve?

In most countries in North America and Europe, the greatest concern of the authorities is users and the impact drugs have on their lives and on society. These are all important considerations. In Brazil, however, the principal focus must be ending the dominance drug dealers exercise over poor communities. Gangs have become the main political and economic power in thousands of modest neighbourhoods in Brazil. This scenario prevents a family of honest and hard-working people from educating their children away from the influence of criminal factions, who intimidate, co-opt and exercise an unfair advantage over any lawful activity. Crucially, this power of trafficking comes from illegality.

Another benefit of legalisation would be to prevent the mass incarceration of impoverished young people with no criminal record who are arrested for trafficking because they are caught in possession of negligible amounts of marijuana. A third of detainees in Brazil are imprisoned for drug trafficking. Once arrested, young prisoners will have to join one of the factions that control the penitentiaries – and on that day, they become dangerous.

[…]

We cannot be certain that a progressive and cautious policy of decriminalisation and legalisation will be successful. What we can affirm is that the existing policy of criminalisation has failed. We must take chances; otherwise, we risk simply accepting a terrible situation. As the Brazilian navigator Amyr Klink said: “The worst shipwreck is not setting off at all.”

Disponível em:<https://www.theguardian.com/global-development/2017/nov/15/brazil-must-legalise-drugs-existing-policy-destroys-lives-luis-roberto-barroso-supreme-court-judge>. Acesso em: 14 nov. 2017.

TEXTO 1

Como evitar ou tratar a depressão? Com exercício físico, oras

A ciência confirma o papel da atividade física na prevenção e no controle da depressão, um mal que se alastra em proporções epidêmicas

É triste dizer, mas a depressão está no ar. Segundo a Organização Mundial da Saúde (OMS), mais de 300 milhões de pessoas sofrem com o problema atualmente – houve um aumento de 18% entre 2005 e 2015. E a tendência é que esse número não pare de crescer. Alarmada, a própria OMS lançou um apelo aos países: é hora de todos incluírem o tema em suas políticas públicas de saúde. Acontece que não basta dar remédio a esse montão de gente que está com a mente em apuros. A solução, tanto em matéria de prevenção como no tratamento, engloba outros ajustes, como mudanças de hábito. Nesse sentido, pode apostar: teremos de suar a camisa para reverter a situação. Literalmente.

Novos estudos reforçam o poder da atividade física para o bem-estar psicológico. A ponto de o exercício virar prescrição para pessoas deprimidas (ao lado da psicoterapia e dos medicamentos). “Hoje, em toda especialidade, qualquer médico vai listar uma série de benefícios das atividades esportivas. Na psiquiatria, isso se aplica à depressão”, diz o psiquiatra Marcelo Fleck, chefe do Departamento de Psiquiatria e Medicina Legal da Universidade Federal do Rio Grande do Sul.

Embora os impactos do esforço físico na esfera mental sejam um campo de pesquisa novo, multiplicam-se evidências de que caminhar, pedalar e malhar melhoram a qualidade de vida de quem anda pra baixo. “É provável que o efeito do exercício se aproxime muito ao dos antidepressivos”, conta Fleck.

Sabe-se que os esportes promovem a liberação de endorfina, o hormônio do prazer, e de outros neurotransmissores por trás da sensação de bem-estar. Experimentos recentes mostram que suar a camisa também estimula o crescimento de células nervosas no hipocampo, região do cérebro que rege a memória e o humor. Um alento e tanto se você pensar que essa estrutura costuma ser menor entre os sujeitos deprimidos.

Esse estímulo aos neurônios é o que ajuda a entender os reflexos positivos de longo prazo – vai muito além, portanto, da sensação imediata de prazer e dever cumprido após a academia. “A liberação de hormônios não é o que faz a pessoa melhorar. A superação da doença tem a ver com a regeneração neuronal”, revela o educador físico e doutor em psiquiatria Felipe Schuch, do Centro Universitário La Salle, em Canoas (RS). Só que esse efeito terapêutico depende de regularidade.

BRUM, Maurício; ORTIZ, Juan; KANITZ, Henrique. Como evitar ou tratar a depressão? Com exercício físico, oras. Disponível em: https://saude.abril.com.br/fitness/como-evitar-ou-tratar-a-depressao-com-exercicio/. Acesso: 11 dez. 2018.

Fire Devastates Brazil's Oldest Science Museum

The overnight inferno likely claimed fossils, cultural artifacts, and more irreplaceable collections amassed over 200 years.

By Michael Greshko ______________________________________

PUBLISHED September 6, 2018

Major pieces of Brazil's scientific and cultural heritage went up in smoke on September 2, as a devastating fire ripped through much of Rio de Janeiro's Museu Nacional, or National Museum. Founded in 1818, the museum is Brazil's oldest scientific institution and one of the largest and most renowned museums in Latin America, amassing a collection of some 20 million scientifically and culturally invaluable artifacts.

The Museu Nacional's holdings include Luzia, an 11,500-year-old skull considered one of South America's oldest human fossils, as well as the bones of uniquely Brazilian creatures such as the long-necked dinosaur Maxakalisaurus. Because of the auction tastes of Brazil's 19th-century emperors, the Museu Nacional also ended up with Latin America's oldest collection of Egyptian mummies and artifacts.

Even the building holds historical importance: It housed the exiled Portuguese royal family from 1808 to 1821, after they fled to Rio de Janeiro in 1807 to escape Napoleon. The complex also served as the palace for Brazil's post-independence emperors until 1889, before the museum collections were transferred there in 1902. In an September 5 email, Museu Nacional curator Débora Pires wrote that the entomology and arachnology collections were completely destroyed, as was most of the mollusk collection. However, technicians had braved the fire to save 80 percent of the mollusk holotypes—the specimens that formally serve as the global references for a given species. The museum's vertebrate specimens, herbarium, and library were housed separately and survived the fire.

(…)

An Irreplaceable Loss

It's not yet clear how the fire started, but it did begin after the museum was closed to the public, and no injuries have yet been reported. Firefighters worked through the night to douse the burnt-out shell of the main building, but it seems the blaze has already seared a gaping hole in many scientists' careers.

“The importance of the collections that were lost couldn't be overstated,” says Luiz Rocha, a Brazilian ichthyologist now at the California Academy ofSciences who has visited the Museu Nacional several times to study its collections. “They were unique as it gets: Many of them were irreplaceable, there's no way to put a monetary value on it.”

“In terms of [my] life-long research agenda, I'm pretty much lost,” says Marcus Guidoti, a Brazilian entomologist finishing up his Ph.D. in a program co-run by Brazil's Federal University of Rio Grande do Sul.

Guidoti studies lace bugs, an insect family with more than 2,000 species worldwide. The Museu Nacional held one of the world's largest lace bug collections, but the fire likely destroyed it and the rest of the museum's five million arthropod specimens. “Those type specimens can't be replaced, and they are crucial to understand the species,” he says by text message. “If I was willing to keep working on this family in this region of the globe, this was definitely a big hit.”

Paleontologist Dimila Mothé, a postdoctoral researcher at the Federal University of the State of Rio de Janeiro, adds that the blows to science extend beyond the collections themselves. “It's not only the cultural history, the natural history, but all the theses and research developed there,” she says. “Most of the laboratories there were lost, too, and the research of several professors. I'm not sure you can say the impact of what was lost.”

Brazil’s indigenous knowledge also has suffered. The Museu Nacional housed world-renowned collections of indigenous objects, as well as many audio recordings of indigenous languages from all over Brazil. Some of these recordings, now lost, were of languages that are no longer spoken.

“I have no words to say how horrible this is,” says Brazilian anthropologist Mariana Françozo, an expert on South American indigenous objects at Leiden University. “The indigenous collections are a tremendous loss … we can no longer study them, we can no longer understand what our ancestors did. It’s heartbreaking.”

On Monday, The Brazilian publication G1 Rio reported that ashes of burned documents—some still flecked in notes or illustrations—have rained down from the sky more than a mile away from the Museu Nacional, thrown aloft by the inferno.

(…)

Editor's Note: This story was updated on September 6, 2018, with new details about which artifacts survived the fire.

Taken from: https://www.nationalgeographic.com/science/2018/09/news-museu-nacional-fire-rio-de-janeiro-natural-history/. Access: 11 dez. 2018.

Fire Devastates Brazil's Oldest Science Museum

The overnight inferno likely claimed fossils, cultural artifacts, and more irreplaceable collections amassed over 200 years.

By Michael Greshko ______________________________________

PUBLISHED September 6, 2018

Major pieces of Brazil's scientific and cultural heritage went up in smoke on September 2, as a devastating fire ripped through much of Rio de Janeiro's Museu Nacional, or National Museum. Founded in 1818, the museum is Brazil's oldest scientific institution and one of the largest and most renowned museums in Latin America, amassing a collection of some 20 million scientifically and culturally invaluable artifacts.

The Museu Nacional's holdings include Luzia, an 11,500-year-old skull considered one of South America's oldest human fossils, as well as the bones of uniquely Brazilian creatures such as the long-necked dinosaur Maxakalisaurus. Because of the auction tastes of Brazil's 19th-century emperors, the Museu Nacional also ended up with Latin America's oldest collection of Egyptian mummies and artifacts.

Even the building holds historical importance: It housed the exiled Portuguese royal family from 1808 to 1821, after they fled to Rio de Janeiro in 1807 to escape Napoleon. The complex also served as the palace for Brazil's post-independence emperors until 1889, before the museum collections were transferred there in 1902. In an September 5 email, Museu Nacional curator Débora Pires wrote that the entomology and arachnology collections were completely destroyed, as was most of the mollusk collection. However, technicians had braved the fire to save 80 percent of the mollusk holotypes—the specimens that formally serve as the global references for a given species. The museum's vertebrate specimens, herbarium, and library were housed separately and survived the fire.

(…)

An Irreplaceable Loss

It's not yet clear how the fire started, but it did begin after the museum was closed to the public, and no injuries have yet been reported. Firefighters worked through the night to douse the burnt-out shell of the main building, but it seems the blaze has already seared a gaping hole in many scientists' careers.

“The importance of the collections that were lost couldn't be overstated,” says Luiz Rocha, a Brazilian ichthyologist now at the California Academy ofSciences who has visited the Museu Nacional several times to study its collections. “They were unique as it gets: Many of them were irreplaceable, there's no way to put a monetary value on it.”

“In terms of [my] life-long research agenda, I'm pretty much lost,” says Marcus Guidoti, a Brazilian entomologist finishing up his Ph.D. in a program co-run by Brazil's Federal University of Rio Grande do Sul.

Guidoti studies lace bugs, an insect family with more than 2,000 species worldwide. The Museu Nacional held one of the world's largest lace bug collections, but the fire likely destroyed it and the rest of the museum's five million arthropod specimens. “Those type specimens can't be replaced, and they are crucial to understand the species,” he says by text message. “If I was willing to keep working on this family in this region of the globe, this was definitely a big hit.”

Paleontologist Dimila Mothé, a postdoctoral researcher at the Federal University of the State of Rio de Janeiro, adds that the blows to science extend beyond the collections themselves. “It's not only the cultural history, the natural history, but all the theses and research developed there,” she says. “Most of the laboratories there were lost, too, and the research of several professors. I'm not sure you can say the impact of what was lost.”

Brazil’s indigenous knowledge also has suffered. The Museu Nacional housed world-renowned collections of indigenous objects, as well as many audio recordings of indigenous languages from all over Brazil. Some of these recordings, now lost, were of languages that are no longer spoken.

“I have no words to say how horrible this is,” says Brazilian anthropologist Mariana Françozo, an expert on South American indigenous objects at Leiden University. “The indigenous collections are a tremendous loss … we can no longer study them, we can no longer understand what our ancestors did. It’s heartbreaking.”

On Monday, The Brazilian publication G1 Rio reported that ashes of burned documents—some still flecked in notes or illustrations—have rained down from the sky more than a mile away from the Museu Nacional, thrown aloft by the inferno.

(…)

Editor's Note: This story was updated on September 6, 2018, with new details about which artifacts survived the fire.

Taken from: https://www.nationalgeographic.com/science/2018/09/news-museu-nacional-fire-rio-de-janeiro-natural-history/. Access: 11 dez. 2018.