Questões de Inglês - Presente simples | Simple present para Concurso

                                           Dr. Dweck’s research into growth mindset

                                                         changed education forever

Over 30 years ago, Carol Dweck and her colleagues became interested in students' attitudes about failure. They noticed that some students rebounded while other students seemed devastated by even the smallest setbacks. After studying the behavior of thousands of children, Dr. Dweck coined the terms fixed mindset and growth mindset to describe the underlying beliefs people have about learning and intelligence. When students believe they can get smarter, they understand that effort makes them stronger. Therefore they put in extra time and effort, and that leads to higher achievement.

Recent advances in neuroscience have shown us that the brain is far more malleable than we ever knew. Research on brain plasticity has shown how connectivity between neurons can change with experience. With practice, neural networks grow new connections, strengthen existing ones, and build insulation that speeds transmission of impulses. These neuroscientific discoveries have shown us that we can increase our neural growth by the actions we take, such as using good strategies, asking questions, practicing, and following good nutrition and sleep habits. […]

So the researchers asked, “Can we change mindsets? And if so, how?” This began a series of interventions and studies that prove we can indeed change a person’s mindset from fixed to growth, and when we do, it leads to increased motivation and achievement. For example, 7th graders who were taught that intelligence is malleable and shown how the brain grows with effort showed a clear increase in math grades.

In addition to teaching kids about malleable intelligence, researchers started noticing that teacher practice has a big impact on student mindset, and the feedback that teachers give their students can either encourage a child to choose a challenge and increase achievement or look for an easy way out. For example, studies on different kinds of praise have shown that telling children they are smart encourages a fixed mindset, whereas praising hard work and effort cultivates a growth mindset. When students have a growth mindset, they take on challenges and learn from them, therefore increasing their abilities and achievement. […].

Source: https://www.mindsetworks.com/science/.Access:02/12/2019)

Australia fires: What's being done to fight the flames?

Large parts of Australia __________ (devastate) by the worst wildfires the country __________ (see) in decades, with huge blazes tearing through bush, woodland and national parks. Record-breaking temperatures and months of drought __________ (help) the fires burn an estimated 10 million hectares (100,000 sq km) of land since 1 July.

Bushfire conditions EASED over the weekend, giving fire crews a period of temporary respite. But authorities __________ (say) the huge fires will persist until there is substantial rainfall. More hot weather is __________ (expect) next week and the risk was far from over, they said. Thousands of firefighters are still battling blazes across large swathes of Australia - ranging in size from small fires to infernos burning across hectares of land. Entire towns have been engulfed and residents across several states have lost their homes. At least 28 people have died.

State and federal authorities have been working together to try to stem the spread. While they have managed to contain some within a matter of days, the biggest blazes have been burning for months.

At least 3,700 firefighters are on the ground at any one time across the country during the worst periods, according to the country's state fire services. Most are in the worst-hit states of New South Wales (NSW) and Victoria. When fires have been at their worst, about 2,700 firefighters have been battling the blazes at any one time in NSW alone. Ben Shepherd, of the NSW Rural Fire Service, said his colleagues had dealt with 4.2m hectares of burning land this season, compared with the typical 300,000 hectares. "It's been an incredibly long campaign," he said.

Fire crews across the country have been joined by 3,000 army, navy and air force reservists who are assisting with search and rescue and clean-up efforts. Further support coming from the US, Canada, and New Zealand, who have sent additional teams and equipment to help.

                                         (https://www.bbc.com/news/world-australia-51008051 )

Planet’s ocean-plastics problem detailed in 60-year data set

Researchers find evidence of rising plastic pollution in an accidental source: log books for planktonmonitoring instruments. Matthew Warren 

Scientists have uncovered the first strong evidence that the amount of plastic polluting the oceans has risen vastly in recent decades — by analysing 60 years of log books for plankton-tracking vessels. 

Data recorded by instruments known as continuous plankton recorders (CPRs) — which ships have collectively towed millions of kilometres across the Atlantic Ocean — show that the trackers have become entangled in large plastic objects, such as bags and fishing lines, roughly three times more often since 2000 than in preceding decades.

This is the first time that researchers have demonstrated the rise in ocean plastics using a single, longterm data set, says Erik van Sebille, an oceanographer at Utrecht University in the Netherlands. “I’m excited that this has been finally done,” he says. The analysis was published on 16 April in Nature Communications. 

 Although the findings are unsurprising, long-term data on ocean plastics had been scant: previous studies looked mainly at the ingestion of plastic by sea creatures over shorter timescales, the researchers say.

Fishing for data

CPRs are torpedo-like devices that have been used since 1931 to survey plankton populations, by filtering the organisms from the water using bands of silk. Today, volunteer ships such as ferries and container ships tow a fleet of CPRs around the world’s oceans. 

(…)Each time a ship tows a CPR, the crew fills in a log book and notes any problems with the device. So Ostle and her colleagues looked through all tow logs from the North Atlantic between 1957 and 2016, to determine whether plastic entanglements have become more common.

Evidence analysis

(…)Van Sebille says that because the study focused on large plastic items, it doesn’t reveal much about the quantity of microplastics — fragments fewer than 5 millimetres long — in the oceans. These tiny contaminants come from sources such as disposable plastic packaging, rather than from fishing gear.

Nevertheless, he adds, the study demonstrates that fisheries play a major part in plastic pollution, and will provide useful baseline data for tracking whether policy changes affect the levels of plastic in the oceans. “As fisheries become more professional, especially in the North Sea, hopefully we might see a decrease,” he says.

Source: https://www.nature.com/articles/d41586-019-01252-0 (adapted).

Access: April 20th, 2019