The genetic material of the HIV virus is encased in multiple structures that hide it from the host immune system. The capsid, in blue, protects the virus after it enters a cell and shuttles it to the nucleus, where...
The naked HIV capsid, left, would be quickly detected and eliminated from the cell, but a host protein, cyclophilin A, in red in the image on the right, binds to the capsid and enables it to transit through the...
After an infection with the Epstein-Barr virus (EBV), the virus persists in the body throughout a person's lifetime. Credit: © Henri-Jacques Delecluse/DKFZ After an infection with the Epstein-Barr virus (EBV), the virus persists in the body throughout a person's lifetime, usually...
The researchers used the supercomputer Blue Waters to determine the complete HIV capsid structure, a simulation that accounted for the interactions of 64 million atoms. Credit: Klaus Schulten/Juan Perilla A team led by researchers at the University of Pittsburgh School of...
Tatyana Polenova and Juan Perilla, professors in the Department of Chemistry and Biochemistry at the University of Delaware, with a computer-generated model of HIV, the virus that causes AIDS. Credit: University of Delaware/ Evan Krape and Jeffrey Chase Viewed with a...
Inflammatory mechanisms caused by the brain's immune system drive the progression of Alzheimer's disease, according to new research. Credit: © Dmitry / Fotolia According to a study by scientists of the German Center for Neurodegenerative Diseases (DZNE) and the University of...
A hidden or 'choked' jet (white) powering a radio-emitting 'cocoon' (pink) is the best explanation for the radio waves, gamma rays and X-rays the astronomers observed. Credit: NRAO/AUI/NSF: D. Berr Three months of observations with the National Science Foundation's Karl G....
This is a black-tailed godwit (Limosa limosa). Habitats range from the Russian far-east to Europe, Africa, and Australasia. Credit: Szabolcs Nagy, Wetlands International A vast new study of changes in global wildlife over almost three decades has found that low levels...
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The coldest chip in the world

A chip with a Coulomb blockade thermometer on it is prepared for experiments at extremely low temperatures. Credit: University of Basel, Department of Physics Physicists at the University of Basel have succeeded in cooling a nanoelectronic chip to a temperature lower...
Treatment with a genome editing agent can preserve sound-detecting bristles in the inner ear of mice with genetic deafness (white box, left). Without the treatment, these bristles disappear (white box, right). Credit: Gao et al. /Nature 2017 Using molecular scissors wrapped...
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Mars: Not as dry as it seems

This is image shows modern Mars (left) dry and barren, compared with the same scene over 3.5 billion years ago covered in water (right). The rocks of the surface were slowly reacting with the water, sequestering it into the...