Felipe Floresti

VIROLOGY

Mystery solved

Virus that causes chikungunya provokes inflammation in several organs, including the brain, and can lead to death

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RETROSPECT

The past dangers of receiving blood

Until early 20th century discoveries, transfusions depended essentially on luck

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CHEMISTRY

Hydrogel pellets remove water from biodiesel

Reusable material emerges as an alternative for purifying biofuel

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NANOTECHNOLOGY

Egg white increases adhesion of graphene to cotton threads

Group from Recife uses albumen from egg whites to attach plant-fiber coverings used in electronic clothing

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VIROLOGY

Study identifies how the Chikungunya virus causes death

Infectious agent causes dysregulated metabolism and inflammation in multiple organs, including the brain

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Epidemiology

The mental burden of the young

Frequency of psychiatric disorders doubles between end of infancy and start of adolescence

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Health economics

Half of all tuberculosis patients spend more than 20% of their annual family income on treatment

Extra consultations or exams, transportation, food, and loss of income add up to US$1,573.40, on average

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Epidemiology

Around 400,000 people died due to cardiovascular problems in Brazil in 2022

Heart attacks and different types of strokes accounted for 76% of cases

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Obituary

Right to scientific knowledge

Ennio Candotti, founder of the Amazon Museum, was passionate about promoting science as head of the SBPC

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Immunology

Cutaneous leishmaniasis may be aggravated by viral and bacterial coinfections

Cutaneous leishmaniasis may be aggravated by viral and bacterial coinfections

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Genetics

Chikungunya virus caused seven outbreaks in Brazil in 10 years

The agent that causes the disease has already been identified in 60% of municipalities

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Obituary

Ice and fire

Environmental engineer Alberto Setzer led Brazil’s Antarctic meteorology project and INPE’s fire monitoring program

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CONSERVATION

The effects of subsistence hunting in sustainable-use reserves in the Amazon

Impacts on animal populations are greater within five kilometers of human communities

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COVID-19

Nonpharmaceutical interventions helped reduce the impact of COVID-19

Nonpharmaceutical interventions helped reduce the impact of COVID-19

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ECOLOGY

Humans prey on more species than 19 other large carnivores

Almost 15,000 vertebrates are impacted by human activity through hunting, fishing, or capture for breeding in captivity

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Pharmacology

Psychedelics act against depression by stimulating connections between neurons

Antidepressant effect occurs independently of the mechanism that alters perception of reality

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