Today, oxygen is essential to life and constantly present in the air we breathe. But for most of Earth’s early history, that was not true. Oxygen did not become a stable part of the atmosphere until about 2.3 billion years ago, during a…
Category: 5. Biology
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125 million-year-old dinosaur with never before seen hollow spikes discovered in China
For more than two centuries, paleontologists have studied a group of plant eating dinosaurs known as Iguanodontia. These dinosaurs were first identified in the early 1800s and are famous for their beaked mouths and strong hind legs. Now, that…
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Climate change is accelerating but nature is slowing down
For years, many ecologists have argued that as global warming intensifies, nature should change more quickly. The logic seems straightforward. Rising temperatures and shifting climate zones would force species out of some areas while opening new…
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Draining wetlands produces substantial emissions in the Canadian Prairies
The value of wetlands on the landscape cannot be overstated—they store and filter water, provide wildlife habitat, cool the atmosphere and sequester carbon. Yet, in the farmland area of Canada’s Prairies, wetlands are being drained to increase…
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Bushbabies reclassified as 'near threatened.' Scientists share how to protect these adorable primates
Frank Cuozzo and Michelle Sauther first traveled to South Africa in 2012 to search for some of the most unusual primates on Earth—bushbabies. These animals are nocturnal and small, often around the size of a housecat. Bushbabies have big ears,…
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Researchers measure Puijo lichens and microbes for canopy nitrous oxide uptake
The role of soil and forests in greenhouse gas sequestration has been studied for a long time. However, forests are also home to invisible organisms that may affect the climate. “Soil, water and peatlands have been studied in the Biogeochemistry…
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Multidrug-Resistant Bacterial Strain Found Preserved in 5,000-Year-Old Cave Ice
Scientists have isolated a new strain of the Psychrobacter cryohalolentis species from 5,000-year-old ice from Scarisoara Ice Cave in Romania. Remarkably, the strain — labeled SC65A.3 — shows resistance to 10 widely used antibiotics,…
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Intelligent fire detection in agriculture using machine learning and embedded systems for risk prevention and improved sustainability
Viana, C. M., Freire, D., Abrantes, P., Rocha, J. & Pereira, P. Agricultural land systems importance for supporting food security and sustainable development goals: A systematic review. Sci. Total Environ. 806, 150718.
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Harmonization of IgG antibody values against the SARS-CoV-2 Spike protein
A Predicted truncated values
To predict the maximum values of the methods, several models were considered in order to select the one providing the best predictions. The models used, as well as the alternative options, are presented in Table 5.
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Androgen dysregulates the follicular extracellular matrix and increases pro-fibrotic gene expression in the mouse ovary
Hynes, R. O. The extracellular matrix: not just pretty fibrils. Sci. (80-). 326 (5957), 1216–1219 (2009).
Bi, Y. et al. Extracellular matrix proteoglycans control the fate of bone marrow…
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