Tagged * Phys.org: Feature™

Seeing the (UV) light: Previously undetected difference in human mutation rate unique to Europeans

(Phys.org)—Although humans are a single species, not all genetic variation is shared between populations – and the ability to sequence our entire genome has allowed scientists to catalogue mutations that occur in one ethnic group alone. These so-called population-private mutations give researchers a unique window into recent human history. Recently, Read Full Article Here For…

Glasses-free 3D display is made with tiny spherical lenses

One of the most common methods of creating the illusion of 3D is the autostereoscopic display, which is based on parallax: each eye is presented with a slightly different angle of a scene. Often this is done with many tiny microlenses, each projecting a small amount of light. Although this Read Full Article Here For…

Tomorrow’s tomography today: Simultaneous 3D imaging of vascular and neuronal networks in mouse spinal cord tissue

(Phys.org)—Given that blood supply to the brain and spinal cord is fundamental to central nervous system (CNS) physiology and pathology, it’s not surprising that trauma and disease in spinal cord blood vessels and neurons lead to a range of neurodegenerative pathologies and other serious consequences. However, current imaging tools do Read Full Article Here For…

Na-ion batteries get closer to replacing Li-ion batteries

(Phys.org)—As lithium resources continue to decline worldwide, the next generation of portable electronics will most likely be powered by something other than Li-ion batteries. One potential candidate is the sodium-ion (Na-ion) battery, which stands out because sodium is cheaper, non-toxic, and more abundant than lithium. Read Full Article Here For more great articles: Phys.org: Feature…

DNA does design: 3D plasmonic photonic crystals are the first devices prepared by DNA-guided colloidal crystallization

Article Abstract: (Phys.org)—As biotechnology and nanotechnology continue to merge, DNA-programmable methods have emerged as a way to provide unprecedented control over the assembly of nanoparticles into complex structures, including customizable periodic structures known as superlattices that allow fine tuning the interaction between light and highly organized collections of particles. Lattice structures have historically been two-dimensional…

Nanoscale neighbors: First use of transformation optics to accurately analyze nonlocality in 3D plasmonic systems

Article Abstract: (Phys.org) —The ubiquitous van der Waals interaction – a consequence of quantum charge fluctuations – includes intermolecular forces such as attraction and repulsion between atoms, molecules and surfaces. The most long-range force acting between particles, it influences a range of phenomena including surface adhesion, friction and colloid stability. Typically a simple task when…

Simplicity will out: Novel experiment-based expression explains behavior of unconventional superconductors

Article Abstract: (Phys.org)—Superconductivity – perhaps the leading example of emergent quantum behavior in matter – was discovered in 1911 but lacked theoretical explanation for almost five decades. In 1957, John Bardeen, Leon Cooper, and John Robert Schrieffer (BCS) developed a microscopic theory of superconductivity1 that came to be known as the BCS theory, which describes…

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