Issue # 341 _ July 2024

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Cover

Care and empathy for animals
Researchers from various disciplines investigate ways to reduce pain and improve the quality of life for species used or consumed by humans By
The challenge of understanding what animals feel
Strategies created to measure pain and try to decipher animals’ emotions By

 

SCIENTIFIC COMMUNICATION

Researchers and students help improve Wikipedia entries

At least 35 universities in the country implemented undergraduate and communication projects with the online encyclopedia

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ETHICS

New rules for research involving human beings

New law set to come into force at the end of August will allow trials to be approved by a single body

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PUBLIC POLICY

Researchers aim to reduce bat deaths at wind farms

Thousands of animals die each year due to collisions or air pressure changes caused by turbine blades

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ENVIRONMENT

Climate change and El Niño increased the frequency and intensity of rainfall in southern Brazil

Global warming doubled the likelihood of extreme precipitation, like the heavy rains of April/May, and increased the volume of rainfall in Rio Grande do Sul from 6% to 9%

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CLIMATE CHANGE

Lack of maintenance and design flaws prevented the flood containment system from protecting Porto Alegre

Damage could have been significantly reduced if the system, installed 50 years ago, had worked properly

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NEUROLOGY

Elderly capuchin monkeys have lesions typical of Alzheimer's disease

The finding could allow primates abundant in Brazil to be used as a model for studying the human disease

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MENTAL HEALTH

Messages and home visits help reduce symptoms of depression in the elderly

Strategies were tested on low-income participants with low education levels in the city of Guarulhos

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BOTANY

Orchids emerged in the Northern Hemisphere 83 million years ago

Plant DNA study suggests modern species have diversified in the tropics in the last five million years, especially in Central America

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PALEONTOLOGY

Biomechanics used to infer how titanosaurs moved

Newly described species lived around 110 million years ago in what may have been the last land bridge between Brazil and Africa

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GEOLOGY

Extinct rivers of the Northeast

Sedimentary rock layers indicate that waters descended from mountains in the region some 450 million years ago

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CLIMATE CHANGE

How sponge cities can help prevent flooding

Chinese approach of using nature-based solutions gains prominence after the devastation of urban areas by extreme rain, as occurred in southern Brazil

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BIOTECHNOLOGY

Scientists develop serum for Africanized bee venom

The team has already obtained a patent for the product, which could prevent the death of people stung by the insect, which is known for its strong defense instinct

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CHEMISTRY

Hydrogel pellets remove water from biodiesel

Reusable material emerges as an alternative for purifying biofuel

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URBANISM

Only four Brazilian cities have completed urban noise maps

The maps are used to create control measures for noise pollution, which can cause cardiovascular problems and sleep disorders

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PSYCHOLOGY

Born 100 years ago, Carolina Bori was a prominent voice in Brazilian science

As the first woman to preside over the SBPC, the psychologist helped institutionalize her field in Brazil

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Literature

Eighteenth-century manuscript on Brazil’s gold cycle published in a bilingual edition

The poem, written by Basílio da Gama, describes aspects of the economic, political, and cultural life of the colony

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