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    “It’s all we’ve been talking about since November,” says Patrick Franzen, publishing director for SPIE, the international society for optics and photonics. He’s referring to ChatGPT, the artificial intelligence (AI)-powered chatbot unveiled that month. In response to a prompt, ChatGPT can spin out fluent and seemingly well-informed reports, essays — and scientific manuscripts. Worried about the ethics and accuracy of such content, Franzen and managers at other journals are scrambling to protect the scholarly literature from a potential flood of manuscripts written in whole or part by computer programs.

    Some publishers have not yet formulated policies. Most of those that have avoid an outright ban on AI-generated text, but ask authors to disclose their use of the automated tools, as SPIE is likely to do. For now, editors and peer reviewers have few alternatives, as they lack enforcement tools. No software so far can consistently detect the synthetic text the majority of the time. [...]

    In some cases, the resulting text is indistinguishable from what people would write. For example, researchers who read medical journal abstracts generated by ChatGPT failed to identify one-third of them as written by machine, according to a December 2022 preprint. AI developers are expected to create even more powerful versions, including ones trained specifically on scientific literature — a prospect that has sent a shock wave through the scholarly publishing industry.

    So far, scientists report playing around with ChatGPT to explore its capabilities, and a few have listed ChatGPT as a co-author on manuscripts. Publishing experts worry such limited use could morph into a spike of manuscripts containing substantial chunks of AI-written text.

Fonte: BRAINARD, Jeffrey. As scientists explore AI-written text, journals hammer out policies. Science, v. 379, n. 6634, p. 740–741, 22 feb. 2023. Disponível em: https://www.science.org/content/article/scientists-explore-ai-written-text-journals-hammer-policies.

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Volunteering is fun! 

Disponível em: https://learnenglishteens.britishcouncil.org/magazine/life-around-world/volunteering-fun. Texto adaptado. Acesso em: ago. 2020.

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               An increasing body of evidence suggests that the time we spend on our smartphones is interfering with our sleep, self-esteem, relationships, memory, attention spans, creativity, productivity and problem-solving and decision-making skills. But there is another reason for us to rethink our relationships with our devices. By chronically raising levels of cortisol, the body’s main stress hormone, our phones may be threatening our health and shortening our lives.

          If they happened only occasionally, phone-induced cortisol spikes might not matter. But the average American spends four hours a day staring at their smartphone and keeps it within arm’s reach nearly all the time, according to a tracking app called Moment.

         “Your cortisol levels are elevated when your phone is in sight or nearby, or when you hear it or even think you hear it,” says David Greenfield, professor of clinical psychiatry at the University of Connecticut School of Medicine and founder of the Center for Internet and Technology Addiction. “It’s a stress response, and it feels unpleasant, and the body’s natural response is to want to check the phone to make the stress go away.”

          But while doing so might soothe you for a second, it probably will make things worse in the long run. Any time you check your phone, you’re likely to find something else stressful waiting for you, leading to another spike in cortisol and another craving to check your phone to make your anxiety go away. This cycle, when continuously reinforced, leads to chronically elevated cortisol levels. And chronically elevated cortisol levels have been tied to an increased risk of serious health problems, including depression, obesity, metabolic syndrome, Type 2 diabetes, fertility issues, high blood pressure, heart attack, dementia and stroke.

(Catherine Price. www.nytimes.com, 24.04.2019. Adaptado.)

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Artificial intelligence and the future of medicine

Cerrado

    Located between the Amazon, Atlantic Forests and Pantanal, the Cerrado is the largest savanna region in South America.

    The Cerrado is one of the most threatened and overexploited regions in Brazil, second only to the Atlantic Forests in vegetation loss and deforestation. Unsustainable agricultural activities, particularly soy production and cattle ranching, as well as burning of vegetation for charcoal, continue to pose a major threat to the Cerrado’s biodiversity. Despite its environmental importance, it is one of the least protected regions in Brazil.

Facts & Figures

•  Covering 2 million km2 , or 21% of the country’s territory, the Cerrado is the second largest vegetation type in Brazil.

•  The area is equivalent to the size of England, France, Germany, Italy and Spain combined.

•  More than 1,600 species of mammals, birds and reptiles have been identified in the Cerrado.

•  Annual rainfall is around 800 to 1600 mm.

•  The capital of Brazil, Brasilia, is located in the heart of the Cerrado. •  Only 20% of the Cerrado’s original vegetation remains intact; less than 3% of the area is currently guarded by law.

(http://wwf.panda.org. Adaptado.)

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The article analyzes the relationship of Indigenous Peoples with the public policy of Social Assistance (AS) in Brazil. Based on data collected during field work carried out in 2014, will analyze the case of the Indigenous Reserve of Dourados, Mato Grosso do Sul. In the first part, I characterize the unequal relationship between society and national state with Indigenous Peoples to, then approach the Welfare State politics as an opportunity to face the violation of rights resulting from the colonial siege. Then we will see if Dourados to illustrate the dilemmas and possibilities of autonomy and indigenous role faced with this public policy. It is expected to contribute to the discussion of statehood pointing concrete cases where the local implementation of AS policy is permeable to a greater or lesser extent, the demands of Indigenous Peoples by adaptation to their social organizations and worldviews.

(BORGES, Júlio César. Brazilian society has made us poor: Social Assistance and ethnic autonomy of Indiggenous Peoples. The case of Dourados, Mato Grosso do Sul. Horiz. antropol. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0104-71832016000200303&lng=en&nrm=iso&tlng=en>. Acesso em: 10 nov. 2018).