The whole population is represented by \(N(t)\) which can be further divided into four compartments. \(S(t)\) denotes the susceptible individuals, \(E(t)\) represents the exposed populations, \(I(t)\) contains the infected population and \(R(t)\)…
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Associations of mental disorders with maternal health outcomes
Organization W. H. O. Mental Health Aspects of Women’s Reproductive Health: A Global Review of the Literature (WHO, 2009).
Wisner, K. L., Murphy, C. & Thomas, M. M. Prioritizing maternal mental health in addressing morbidity and mortality. JAMA…
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Large riverbed sediment flux sustained for a decade after an earthquake
Keefer, D. K. Landslides caused by earthquakes. Geol. Soc. Am. Bull. 95, 406–421 (1984).
Keefer, D. K. Investigating landslides caused by earthquakes – a historical review. Surv. Geophys.…
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Just how bad will climate change get? The only way to know is to fund basic research
How seriously should people be taking climate change? United Nations secretary-general António Gutteres considers it an existential threat. Yet, US President Donald Trump has decreed it a hoax. On 29 July, a US Department of Energy (DOE) report…
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Watch rappelling robots dive into a lava tube — for science
The three robots worked as a team to enter and map an underground tunnel.Credit: Carlos Pérez-del-Pulgar
To explore volcanic tunnels on the Moon or Mars, send a team of specialized robots.
Researchers have demonstrated this approach in tests on…
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An integrated-circuit-based probabilistic computer that uses voltage-controlled magnetic tunnel junctions as its entropy source
Finocchio, G. et al. The promise of spintronics for unconventional computing. J. Magn. Magn. Mater. 521, 167506 (2021).
Finocchio, G. et al. Roadmap for unconventional computing with…
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A numerical approach to fractional Volterra–Fredholm integro-differential problems using shifted Chebyshev spectral collocation
The developed numerical approach reformulates linear fractional Volterra–Fredholm integro-differential equations into integral equations. These are subsequently converted into a system of linear algebraic equations, resolved efficiently via the…
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Mechanodynamic brain on chip for studying human stem cell derived neuronal networks
Microfabrication of the BoC
Channel layer for pneumatic pressure-driven actuation
Femtosecond laser micromachining enables direct writing of 3D features into transparent materials without the need for masks or sacrificial layers as in traditional…
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Establishment of chromatin architecture interplays with embryo hypertranscription
Hug, C. B. & Vaquerizas, J. M. The birth of the 3D genome during early embryonic development. Trends Genet. 34, 903–914 (2018).
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Du, Z., Zhang, K. & Xie, W. Epigenetic…
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Synaptic connectomics: status and prospects
Synaptic connectomics: status and prospects
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