Researchers at the University of Houston unveiled an advancement in X-ray imaging technology that could provide significant improvements in medical diagnostics, materials and industrial imaging, transportation security and other applications.
Category: security – Page 26
Microsoft Issues Patches for 90 Flaws, Including 10 Critical Zero-Days
Microsoft on Tuesday shipped fixes to address a total of 90 security flaws, including 10 zero-days, of which six have come under active exploitation in the wild.
Of the 90 bugs, seven are rated Critical, 79 are rated Important, and one is rated Moderate in severity. This is also in addition to 36 vulnerabilities that the tech giant resolved in its Edge browser since last month.
The Patch Tuesday updates are notable for addressing six actively exploited zero-days.
American Science is in Dangerous Decline while Chinese Research Surges, Experts Warn
A very dangerous position to be in the world community of scientist should gather in agreement those friendly to the values and principles of democracy to advance science for the good humanity and freedom.
The U.S. sorely needs a coordinated national research strategy, says Marcia McNutt, president of the U.S. National Academy of Sciences.
In a first-ever “State of the Science” address at the end of June, National Academy of Sciences president Marcia McNutt warned that the U.S. was ceding its global scientific leadership to other countries—highlighting China in particular. McNutt, a widely respected geophysicist, said this slippage could make it harder for the U.S. to maintain the strength of its economy and protect its national security. She also laid out a provisional plan of action to reverse the decline.
Riverlane Locks Up $75M As Quantum Funding Continues Strong Year
Startup Riverlane helped continue what has been a strong year for venture funding in the quantum computing industry.
The U.K.-based firm — which specializes in quantum error correction technology — raised a $75 million Series C led by Planet First Partners. The round also includes participation from ETF Partners, EDBI, Cambridge Innovation Capital, Amadeus Capital Partners, the National Security Strategic Investment Fund and Altair
The company’s tech helps quantum computers perform without succumbing to eventual errors. Such computers typically can only perform a few hundred quantum operations before failure.
45-Year-Old Theory Confirmed: Physicists Shed New Light on the “Invisible” Energy States of Molecules
Artistic representation of hyper-Raman optical activity: twisted light (red helices) incident on molecules arranged on a helical scaffold (white dots) produce hyper-Raman scattering spectra (multicoloured light patches) that express ‘chirality’ (patches in spiral patterns and broken mirror). Credit: Ventsislav Valev and Kylian ValevAn international team of scientists, led by physicists from the University of Bath, has demonstrated a new optical phenomenon that could significantly impact various fields, including pharmaceutical science, security, forensics, environmental science, art conservation, and medicine.
Molecules rotate and vibrate in very specific ways. When light shines on them it bounces and scatters. For every million light particles (photons), a single one changes colour. This change is the Raman effect. Collecting many of these color-changing photons paints a picture of the energy states of molecules and identifies them.
Yet some molecular features (energy states) are invisible to the Raman effect. To reveal them and paint a more complete picture, ‘hyper-Raman’ is needed.
Synthesis of ceramic nanospheres with tunable electromagnetic wave absorption performance
Microwave technology has dramatically progressed, marked by the arrival of the 5G era, owing to the advantages of electromagnetic waves in long-distance, wireless, and high-speed transmissions. However, electromagnetic wave pollution problems such as electromagnetic wave interference and electromagnetic wave radiation are becoming increasingly serious.
Electromagnetic wave pollution not only affects the normal operation of electronic equipment, greatly threatens the information security of the scientific community, but also endangers human health and is a possible cause of cancer and sensitized diseases.
SiOC precursor ceramics have great application potential in electromagnetic protection because of their advantages such as lightweight, high-temperature resistance, and molecular designability. The main challenge of polymer-derived ceramic-based composites for electromagnetic wave absorption is the single loss mechanism, resulting in inferior electromagnetic wave attenuation ability.