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SciDev.Net (Reino Unido)
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Gold nanosensor spots difference between dengue, Zika
Publicado em 29 julho 2020
A new class of nanosensor developed in Brazil could more accurately identify dengue and Zika infections, a task that is complicated by their genetic similarities and which can result in misdiagnosis.
The technique uses gold nanoparticles and can “observe” viruses at the atomic level, according to a study published in Scientific Reports (9 July).
Belonging to the Flavivirus genus in the Flaviviridae family, Zika and dengue viruses share more than 50 [...]
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Q&A: An opportunity to change the world with science
Publicado em 29 junho 2020As the COVID-19 pandemic took hold in April, neuroscientist Luiz Eugenio Mello took over as scientific director of one of Brazil’s major research funding agencies, the São Paulo Research Foundation (FAPESP). While FAPESP is based in São Paulo, the state is responsible for approximately half of Brazil’s scientific output: FAPESP’s 2020 budget of about one billion Brazilian reals — US$195 million — is close to the $234 million budget of the National [...]ver notícia -
Zika virus ‘harms baby brain collagen development’
Publicado em 25 junho 2020Zika virus can hamper vital collagen development in the brains of babies whose mothers were infected with the disease while pregnant, new research reveals, as the search for a vaccine continues. Collagen is crucial to the circulatory system, as it regulates the compression of blood vessels. A large amount of the collagen found in the human brain is located inside vein tissue. The research findings could explain the deaths of babies with microcephaly, a birth defect that causes a baby to be [...]ver notícia -
Two-Thirds of Tropical Forests ‘Under Threat in Next Decade’
Publicado em 29 maio 2020[SÃO PAULO] Tropical forests can develop resistance to a warmer climate, but 71 per cent will come under threat in the next decade if global average temperatures reach two degrees Celsius above pre-industrial levels, a new study warns. Forest-dependent communities and the global climate will be affected if tropical forests are further degraded, experts say. Led by scientists at the University of Leeds and published in Science, the study involved 226 researchers from around the world. [...]ver notícia -
Double epidemic could crash Latin America health systems
Publicado em 15 maio 2020[SAO PAULO] Simultaneous dengue and COVID-19 epidemics could lead to the collapse of Brazil’s health system, scientists warn. The same could occur in other Latin America countries where about 500 million people are at risk of contracting dengue, according to the Pan American Health Organization (PAHO). For many of these countries, combatting the two outbreaks is an unprecedented health challenge. Brazil is “on the eve of reaching the peak of COVID-19”, biologist Camila [...]ver notícia -
Eyeball fever scan ‘could prevent spread of COVID-19’
Publicado em 28 abril 2020[SÃO PAULO] - Researchers in Brazil have created a system capable of measuring body temperature from a distance and in crowded environments, such as hospitals, supermarkets and factories. The system aims to detect people with fever — one of the most frequent symptoms of COVID-19 — and prevent the virus SARS-CoV-2 from spreading. The technology, called Fevver, is based on algorithms and artificial intelligence connected to a camera. It captures images of faces and detects [...]ver notícia -
Eyeball fever scan ‘could prevent spread of COVID-19
Publicado em 28 abril 2020SÃO PAULO -Researchers in Brazil have created a system capable of measuring body temperature from a distance and in crowded environments, such as hospitals, supermarkets and factories. The system aims to detect people with fever — one of the most frequent symptoms of COVID-19 — and prevent the virus SARS-CoV-2 from spreading. The technology, called Fevver, is based on algorithms and artificial intelligence connected to a camera. It captures images of faces and detects [...]ver notícia -
Coronavirus Deaths ‘Need New Autopsy Technique’
Publicado em 02 abril 2020[SÃO PAULO] Researchers in Brazil are using minimally invasive autopsy techniques in suspected coronavirus deaths in an effort to protect health workers from infection. Pathologists performing autopsies are exposed to potentially infectious organs, fluids and secretions. For six years, researchers at the Hospital das Clínicas at the University São Paulo School of Medicine have been developing the autopsy technique, which includes the use of protective equipment similar to [...]ver notícia -
Arthritis drug answer to pregnancy malaria: study
Publicado em[SÃO PAULO] - Babies exposed to malaria in the womb can suffer low birth weight and miscarriages, but a new study has found a common arthritis drug could put an end to the scourge of placental malaria. Maternal malaria is a serious health risk to both mothers and babies, particularly in endemic parts of the global South. Classified by the World Health Organization as a significant public health threat, some studies estimate maternal malaria causes up to [...]ver notícia -
Bees boost Brazil’s forest restoration, scientists say
Publicado em 31 janeiro 2020[SÃO PAULO] - Some of the most important tree species for the restoration and conservation of tropical forests rely heavily on bees as transporters of pollen. Bees facilitate pollination over great distances, increase the genetic diversity of plants, and stimulate the reproduction and resilience of native species in degraded ecosystems. That’s why conserving these declining insects should be a priority in forest restoration projects, according to a study by Brazilian scientists [...]ver notícia