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Em 2026: 320 notícias
Desde 1995: 3030 notícias
Expert Reaction: Stressed out birds will push their fruit-eating abilities to the limit
Publicado em 19 de julho de 2024
New international research, led by New Zealanders, has found that fruit-eating birds living in stressful environments will up their calorie intake by eating the largest possible fruits that can easily fit in their beaks. The team looked at 97 bird species and the more than 800 plants from around the world they eat. They found birds will often eat fruits that match their beak size when they’re near their limits of where they live, where conditions tend to be more challenging. The team says [...]
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Foraging Niches Shrink at Birds' Geographic Range Edges
Publicado em 18 julho 2024When at the edges of their geographic ranges, fruit-eating birds favor foods that more closely match their beak size, researchers report, suggesting that foraging niches (the diversity of food resources a species uses) become more specialized toward the periphery of a species range. The findings may help explain geographic variation in species' fitness and are important for accurately predicting species' responses to continued environmental change, which is forcing many populations to [...]Mirage News (Austrália) -
Researchers identify ORF6 protein as key to SARS-CoV-2 immune evasion
Publicado em 17 julho 2024An article published in the journal Cell describes a study that enabled a group of researchers to discover how SARS-CoV-2 evades the cytotoxic immune response by identifying a protein called ORF6 that is a key factor in this mechanism. The cytotoxic immune response involves T-lymphocytes that kill pathogens when they recognize cells bearing a specific antigen while sparing neighboring uninfected cells. The study was led by Wilfredo Garcia-Beltran and Julie Boucau, research scientists at [...]News Medical (Austrália) -
Mapping World’s Fungi From Air Samples: Southern Cross Uni Joins Global Effort
Publicado em 16 julho 2024A global study has found the key to mapping biodiversity has been staring us in the face the whole time: in the surrounding air. Led by Finland’s University of Jyväskylä, the paper ‘Airborne DNA reveals predictable spatial and seasonal dynamics of fungi’ is published in the journal Nature. Only a fraction of nature’s diversity, or species richness, is still known, especially when it comes to insects and fungi, both of which have millions of species still [...]The National Tribune (Austrália) -
Protein Found Helping COVID-19 Virus Evade Immune System
Publicado em 16 julho 2024An article published in the journal Cell describes a study that enabled a group of researchers to discover how SARS-CoV-2 evades the cytotoxic immune response by identifying a protein called ORF6 that is a key factor in this mechanism. The cytotoxic immune response involves T-lymphocytes that kill pathogens when they recognize cells bearing a specific antigen while sparing neighboring uninfected cells. The study was led by Wilfredo Garcia-Beltran and Julie Boucau, research [...]Mirage News (Austrália) -
Mapping World's Fungi From Air Samples: Southern Cross Uni Joins Global Effort
Publicado em 16 julho 2024A global study has found the key to mapping biodiversity has been staring us in the face the whole time: in the surrounding air. Led by Finland's University of Jyväskylä, the paper 'Airborne DNA reveals predictable spatial and seasonal dynamics of fungi' is published in the journal Nature. Only a fraction of nature's diversity, or species richness, is still known, especially when it comes to insects and fungi, both of which have millions of species [...]Mirage News (Austrália) -
Novel photodynamic therapy method can eradicate ocular melanoma, study shows
Publicado em 12 julho 2024Researchers at the Optics and Photonics Research Center (CePOF) in Brazil and collaborators at the University of Toronto and Princess Margaret Cancer Center in Canada have reported for the first time the effective use of a specific type of phototherapy to eradicate ocular melanoma in mice. Based on pulsed laser, the technique involves the application of a large amount of light in a short period of time to activate a drug. CePOF is a Research, Innovation and Dissemination Center [...]Oncology News (Austrália) -
Scientists Urge Swift Action on Yanomami Nutritional Crisis
Publicado em 11 julho 2024A strong denunciation of poor health among Yanomami children has been published in the journal Nature Medicine by researchers at the State University of Campinas (UNICAMP) in Brazil. The article, signed by Thiago dos Reis Araujo, Ana Paula Davel and Everardo Magalhães Carneiro, reveals that the children of this ethnic group are currently facing the most severe nutritional deficit of any Indigenous community in the Americas, that some 570 Yanomami children have starved to death in the [...]Mirage News (Austrália) -
Jyväskylä University Maps Global Fungi via Air Samples
Publicado em 11 julho 2024Only a fraction of nature's diversity, or species richness, is still known, especially when it comes to insects and fungi, both of which have millions of species still unknown to science. At the same time, the loss of nature is progressing at an unprecedented rate, and researchers are racing against time to find out the unknown diversity while also coming up with ways to save it. "Air is a real treasure trove for nature research," says Academy Research Fellow Nerea Abrego [...]Mirage News (Austrália) -
Mayaro, Chikungunya Viruses Found Simultaneously in Amazon
Publicado em 10 julho 2024An article published in the journal Emerging Infectious Diseases shows that Mayaro and chikungunya viruses are circulating at the same time (co-circulating) in Roraima, Brazil's northernmost state and part of the Amazon biome. According to the authors, their findings reinforce the need for more effective epidemiological surveillance in the region. The researchers were surprised by the discovery. Their initial hypothesis was that other viruses were highly unlikely to circulate in places [...]Mirage News (Austrália)