Questões para Concursos

Text 1A4-II The pursuit of space exploration represents one of the most captivating undertakings of the human race, serving as a testament to our inherent drive to comprehend the cosmos and our position within it. As humanity expands its reach beyond the confines of Earth, the intricate and essential relationship between technology and law grows increasingly intricate and indispensable. The rapid progress of technology has ushered us into an era when endeavours in outer space, previously confined to the realm of science fiction, are now becoming tangible and feasible. The present circumstances require a comprehensive legal structure encompassing the existing range of space endeavours and the flexibility to accommodate dynamic technological advancements. The Outer Space Treaty of 1967 set the foundational legal principles governing space exploration activities. However, as humanity continues to explore space and private companies participate alongside sovereign nations, the intersection of technology and law serves as both a catalyst for progress and a cause of disagreement. Bansi Kaneria; Shivam Pandey. Interplay Between Technology and Law in Space Exploration. In : IOSR Journal of Environmental Science Toxicology and Food Technology , 2024, 18 (03): 31-46 (adapted).

Text 1A4-II The pursuit of space exploration represents one of the most captivating undertakings of the human race, serving as a testament to our inherent drive to comprehend the cosmos and our position within it. As humanity expands its reach beyond the confines of Earth, the intricate and essential relationship between technology and law grows increasingly intricate and indispensable. The rapid progress of technology has ushered us into an era when endeavours in outer space, previously confined to the realm of science fiction, are now becoming tangible and feasible. The present circumstances require a comprehensive legal structure encompassing the existing range of space endeavours and the flexibility to accommodate dynamic technological advancements. The Outer Space Treaty of 1967 set the foundational legal principles governing space exploration activities. However, as humanity continues to explore space and private companies participate alongside sovereign nations, the intersection of technology and law serves as both a catalyst for progress and a cause of disagreement. Bansi Kaneria; Shivam Pandey. Interplay Between Technology and Law in Space Exploration. In : IOSR Journal of Environmental Science Toxicology and Food Technology , 2024, 18 (03): 31-46 (adapted).

Text CB1A2 Spending time in space and having an unrivalled view of planet Earth is an experience many of us dream of, but the human body evolved to function in the gravity of Earth. So fully recovering from spending time in the weightlessness of space can take years. “It’s a fact that space is by far the most extreme environment that humans have ever encountered and we’ve just not evolved to handle the extreme conditions,” Professor Damian Bailey, who studies human physiology, says. To begin with, the heart and blood vessels have an easier time as they no longer have to pump blood against gravity — and they start to weaken. And the bones become weaker and more brittle. There should be a balance between the cells breaking down old bone and those making new, but that balance is disrupted without the feedback and resistance of working against gravity. “Every month, about 1% of bones and muscles are going to wither away — it’s accelerated ageing,” Professor Bailey says. Microgravity also distorts the vestibular system, which is how you balance and sense which way is up. In space, there is no up, down or sideways. It can be disorientating when you go up — and again when you return to Earth. James Gallagher. What nine months in space does to the human body. Internet: (adapted).

Text CB1A2 Spending time in space and having an unrivalled view of planet Earth is an experience many of us dream of, but the human body evolved to function in the gravity of Earth. So fully recovering from spending time in the weightlessness of space can take years. “It’s a fact that space is by far the most extreme environment that humans have ever encountered and we’ve just not evolved to handle the extreme conditions,” Professor Damian Bailey, who studies human physiology, says. To begin with, the heart and blood vessels have an easier time as they no longer have to pump blood against gravity — and they start to weaken. And the bones become weaker and more brittle. There should be a balance between the cells breaking down old bone and those making new, but that balance is disrupted without the feedback and resistance of working against gravity. “Every month, about 1% of bones and muscles are going to wither away — it’s accelerated ageing,” Professor Bailey says. Microgravity also distorts the vestibular system, which is how you balance and sense which way is up. In space, there is no up, down or sideways. It can be disorientating when you go up — and again when you return to Earth. James Gallagher. What nine months in space does to the human body. Internet: (adapted).

Text CB1A2 Spending time in space and having an unrivalled view of planet Earth is an experience many of us dream of, but the human body evolved to function in the gravity of Earth. So fully recovering from spending time in the weightlessness of space can take years. “It’s a fact that space is by far the most extreme environment that humans have ever encountered and we’ve just not evolved to handle the extreme conditions,” Professor Damian Bailey, who studies human physiology, says. To begin with, the heart and blood vessels have an easier time as they no longer have to pump blood against gravity — and they start to weaken. And the bones become weaker and more brittle. There should be a balance between the cells breaking down old bone and those making new, but that balance is disrupted without the feedback and resistance of working against gravity. “Every month, about 1% of bones and muscles are going to wither away — it’s accelerated ageing,” Professor Bailey says. Microgravity also distorts the vestibular system, which is how you balance and sense which way is up. In space, there is no up, down or sideways. It can be disorientating when you go up — and again when you return to Earth. James Gallagher. What nine months in space does to the human body. Internet: (adapted).

In the 20 th century, we made tremendous advances in discovering fundamental principles in different scientific disciplines that created major breakthroughs in management and technology for agricultural systems, mostly by empirical means. However, as we enter the 21st century, agricultural research has more difficult and complex problems to solve. The environmental consciousness of the general public is requiring us to modify farm management to protect water, air, and soil quality, while staying economically profitable. At the same time, market-based global competition in agricultural products is challenging economic viability of the traditional agricultural systems, and requires the development of new and dynamic production systems. Fortunately, the new electronic technologies can provide us a vast amount of real-time information about crop conditions and near-term weather via remote sensing by satellites or ground-based instruments and the Internet, that can be utilized to develop a whole new level of management. However, we need the means to capture and make sense of this vast amount of site-specific data. Our customers, the agricultural producers, are asking for a quicker transfer of research results in an integrated usable form for site-specific management. Such a request can only be met with system models, because system models are indeed the integration and quantification of current knowledge based on fundamental principles and laws. Models enhance understanding of data taken under certain conditions and help extrapolate their applications to other conditions and locations. Lajpat R. Ahuja; Liwang Ma; Terry A. Howell. Whole System Integration and Modeling — Essential to Agricultural Science and Technology in the 21st Century. In: Lajpat R. Ahuja; Liwang Ma; Terry A. Howell (eds.) Agricultural system models in field research and technology transfer. Boca Raton, CRC Press LLC, 2002 (adapted).

Climate change poses significant challenges to cattle farming, a sector vital to global food security. Among the most pressing concerns is the increasing frequency and intensity of droughts. Reduced rainfall diminishes pasture quality and availability, limiting feed for livestock and increasing water scarcity. This can lead to decreased animal growth rates, reduced milk production, and increased mortality rates. Moreover, prolonged droughts can contribute to desertification, shrinking available grazing land and forcing farmers to adopt costly alternative feeding strategies. Beyond drought, other climate-related impacts include heat stress, which can significantly impact animal health and productivity. Rising temperatures can exacerbate heat stress, leading to decreased feed intake, reduced fertility, and increased mortality in livestock. Furthermore, extreme weather events, such as heavy rainfall and flooding, can cause infrastructure damage, contaminate water sources, and lead to the loss of livestock. The cattle farming sector itself contributes to climate change through greenhouse gas emissions, primarily methane produced during animal digestion and nitrous oxide from manure management. Deforestation for pasture expansion also releases significant amounts of carbon dioxide. To address these challenges, a multi-pronged approach is crucial. • Genetic selection: Breeding programs focused on developing drought-resistant and heat-tolerant livestock breeds are vital. • Sustainable feeding strategies: Implementing precision feeding techniques, improving feed efficiency, and exploring alternative feed sources, such as drought-resistant forage varieties, can enhance livestock resilience. • Integrated farming systems: Integrating crop and livestock production, such as through agroforestry systems, can improve soil health, enhance water retention, and reduce greenhouse gas emissions. • Technological innovations: Utilizing technologies such as precision livestock farming, remote sensing for pasture monitoring, and renewable energy sources can improve resource efficiency and reduce the environmental footprint of cattle production. Furthermore, strong policy support, including incentives for sustainable farming practices, investments in research and development, and improved access to climate information services, are essential for the long-term sustainability of the cattle farming sector. Addressing the challenges posed by climate change requires a collaborative effort involving farmers, researchers, policymakers, and consumers. By embracing innovative solutions, prioritizing sustainable practices, and fostering a collective understanding of the importance of climate-resilient livestock production, we can ensure a future when this vital sector continues to thrive while minimizing its environmental impact. Internet: (adapted).

Climate change poses significant challenges to cattle farming, a sector vital to global food security. Among the most pressing concerns is the increasing frequency and intensity of droughts. Reduced rainfall diminishes pasture quality and availability, limiting feed for livestock and increasing water scarcity. This can lead to decreased animal growth rates, reduced milk production, and increased mortality rates. Moreover, prolonged droughts can contribute to desertification, shrinking available grazing land and forcing farmers to adopt costly alternative feeding strategies. Beyond drought, other climate-related impacts include heat stress, which can significantly impact animal health and productivity. Rising temperatures can exacerbate heat stress, leading to decreased feed intake, reduced fertility, and increased mortality in livestock. Furthermore, extreme weather events, such as heavy rainfall and flooding, can cause infrastructure damage, contaminate water sources, and lead to the loss of livestock. The cattle farming sector itself contributes to climate change through greenhouse gas emissions, primarily methane produced during animal digestion and nitrous oxide from manure management. Deforestation for pasture expansion also releases significant amounts of carbon dioxide. To address these challenges, a multi-pronged approach is crucial. • Genetic selection: Breeding programs focused on developing drought-resistant and heat-tolerant livestock breeds are vital. • Sustainable feeding strategies: Implementing precision feeding techniques, improving feed efficiency, and exploring alternative feed sources, such as drought-resistant forage varieties, can enhance livestock resilience. • Integrated farming systems: Integrating crop and livestock production, such as through agroforestry systems, can improve soil health, enhance water retention, and reduce greenhouse gas emissions. • Technological innovations: Utilizing technologies such as precision livestock farming, remote sensing for pasture monitoring, and renewable energy sources can improve resource efficiency and reduce the environmental footprint of cattle production. Furthermore, strong policy support, including incentives for sustainable farming practices, investments in research and development, and improved access to climate information services, are essential for the long-term sustainability of the cattle farming sector. Addressing the challenges posed by climate change requires a collaborative effort involving farmers, researchers, policymakers, and consumers. By embracing innovative solutions, prioritizing sustainable practices, and fostering a collective understanding of the importance of climate-resilient livestock production, we can ensure a future when this vital sector continues to thrive while minimizing its environmental impact. Internet: (adapted).

Text CB1A2 Currently, the Digital Euro has not been launched — though there are signs that a launch may be coming sooner rather than later. By October 2025, the ECB (European Central Bank) has indicated a second phase of the preparation for the Digital Euro. By then, the ECB will have prepared an outreach plan, procurement standards, and technology providers. The Digital Euro has potential downsides, many of them echoed in the other launches of central bank digital currencies. For example, the central bank will become a technology company focused on procurement with central points of failure. This was a breeding ground for corruption for the bureaucrat fortunate enough to make these technical choices in China. While the Digital Euro is slated to “coexist” with cash, this also comes when EU (European Union) nations are voting on ending end-to-end encryption (a critical digital privacy tool) and have started to restrict cash with limits being placed on how much you can spend in cash to accelerate its slow demise. User privacy is said to be the ECB’s “chief concern” as it has been designing the central bank’s digital currency. Certainly, the ECB is aware of public perception that has negative surveillance, control, and privacy implications in mind. The ECB has been at pains to say that the Digital Euro will “coexist” with cash and that unlike the e-CNY (China’s central bank digital coin) it will not be tied to a “social credit” score or place limits on how money is spent. A big part of the ECB’s drive towards the Digital Euro is to compete and pry Europeans away from Bitcoin, cryptocurrencies, and “stablecoins”. Central bank digital currencies are a direct liability of the central bank. Since the central bank has the power to issue currency, this means that the central bank can essentially create “digital euros” if it wishes to. The architecture and data within a central bank digital currency are usually built completely by the central bank supported by private vendors of its choice. In China, the central bank has turned away from a distributed ledger technology to a centralized data store, in which the technical details are pretty scant. Hence, the central bank controls everything, and the system has no external access. Internet: (adapted).

Text CB1A2 Currently, the Digital Euro has not been launched — though there are signs that a launch may be coming sooner rather than later. By October 2025, the ECB (European Central Bank) has indicated a second phase of the preparation for the Digital Euro. By then, the ECB will have prepared an outreach plan, procurement standards, and technology providers. The Digital Euro has potential downsides, many of them echoed in the other launches of central bank digital currencies. For example, the central bank will become a technology company focused on procurement with central points of failure. This was a breeding ground for corruption for the bureaucrat fortunate enough to make these technical choices in China. While the Digital Euro is slated to “coexist” with cash, this also comes when EU (European Union) nations are voting on ending end-to-end encryption (a critical digital privacy tool) and have started to restrict cash with limits being placed on how much you can spend in cash to accelerate its slow demise. User privacy is said to be the ECB’s “chief concern” as it has been designing the central bank’s digital currency. Certainly, the ECB is aware of public perception that has negative surveillance, control, and privacy implications in mind. The ECB has been at pains to say that the Digital Euro will “coexist” with cash and that unlike the e-CNY (China’s central bank digital coin) it will not be tied to a “social credit” score or place limits on how money is spent. A big part of the ECB’s drive towards the Digital Euro is to compete and pry Europeans away from Bitcoin, cryptocurrencies, and “stablecoins”. Central bank digital currencies are a direct liability of the central bank. Since the central bank has the power to issue currency, this means that the central bank can essentially create “digital euros” if it wishes to. The architecture and data within a central bank digital currency are usually built completely by the central bank supported by private vendors of its choice. In China, the central bank has turned away from a distributed ledger technology to a centralized data store, in which the technical details are pretty scant. Hence, the central bank controls everything, and the system has no external access. Internet: (adapted).