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Aggregation-induced catalysis: Asymmetric catalysis with chiral aggregates

Asymmetric synthesis and catalysis have been actively pursued in chemical and materials sciences for some time. Increasing numbers of drugs and pesticides contain chiral structural units in their structures since drug actions require conformational m.....»»

Category: topSource:  physorgJul 18th, 2023

A molecular moon lander: Insight into molecular motion on surfaces at the nanoscale

For years, scientists have been intrigued by how molecules move across surfaces. The process is critical to numerous applications, including catalysis and the manufacturing of nanoscale devices......»»

Category: topSource:  physorgRelated NewsApr 11th, 2024

New technique lets scientists create resistance-free electron channels

An international research team led by Lawrence Berkeley National Laboratory (Berkeley Lab) has taken the first atomic-resolution images and demonstrated electrical control of a chiral interface state—an exotic quantum phenomenon that could help res.....»»

Category: topSource:  physorgRelated NewsApr 9th, 2024

Unveiling the hidden threat: Drought-induced inelastic subsidence in expansive soils

A journal article published by University of Houston Department of Earth and Atmospheric Sciences researchers highlights a significant, yet often overlooked, environmental concern—permanent losses in land surface elevation due to inelastic compacti.....»»

Category: topSource:  physorgRelated NewsApr 9th, 2024

High-performance terahertz modulators induced by substrate field in Te-based all-2D heterojunctions

High-performance active terahertz (THz) modulators are of great importance for next generation communication technology. However, they currently suffer from the tradeoff between modulation depth and speed......»»

Category: topSource:  physorgRelated NewsApr 8th, 2024

Climate change impacts terrorist activity, study finds

Changing weather patterns induced by climate change are contributing to shifts in the location of terrorist activity, according to new research......»»

Category: topSource:  theglobeandmailRelated NewsApr 4th, 2024

Must mRNA be cloaked in a lipid coat to serve as a vaccine?

The Uchida Laboratory of Innovation Center of NanoMedicine has demonstrated that intradermal administration of mRNA alone (naked mRNA) without protection by nanoparticles induced robust vaccination against SARS CoV-2, a virus causing COVID-19, in mic.....»»

Category: topSource:  theglobeandmailRelated NewsApr 3rd, 2024

Researchers observe anomalously bright single-molecule upconversion electroluminescence phenomenon

A research group has developed a new and highly efficient upconversion luminescence mechanism by scanning tunneling microscopy (STM) induced luminescence to observe an extraordinarily bright single-molecule upconversion electroluminescence (UCEL) phe.....»»

Category: topSource:  physorgRelated NewsApr 1st, 2024

Researchers obtain promising results for control of pollutants in water

An article published in the journal Catalysis Communications describes a simple, efficient and sustainable approach to the degradation and quantitative monitoring of a mixture of polycyclic aromatic hydrocarbons (PAHs), emerging pollutants that conta.....»»

Category: topSource:  marketingvoxRelated NewsMar 27th, 2024

New method uses enantioselective nickel catalysis to synthesize multifunctional chiral alkylboron compounds

National University of Singapore (NUS) chemists have conceived a strategy using chiral nickel catalysts to facilitate the carboboration of alkenes, generating high-value enantioenriched alkylboronic esters......»»

Category: topSource:  physorgRelated NewsMar 20th, 2024

Advancing precision agriculture: GANs for high-fidelity synthetic weed identification

Meeting the growing food demand is a significant challenge, exacerbated by weed-induced crop production constraints. Conventional weed management methods, such as herbicides, have inadvertently fostered the emergence of resistant species, underscorin.....»»

Category: topSource:  physorgRelated NewsMar 18th, 2024

How DHX9 stress granules protect daughter cells from UV-induced RNA damage

During the process of cell division, new daughter cells inherit a mix of genetic material and other molecules from their mother cells. This inheritance includes both beneficial components, which can help them for a robust start in life, and potential.....»»

Category: topSource:  physorgRelated NewsMar 18th, 2024

Chiral transmission by an open evolution trajectory in a non-Hermitian system

In non-Hermitian systems, two or more eigenvalues and eigenstates of a resonant system coalesce at Exceptional points (EPs). Dynamic encircling of EPs has received significant interest in recent years, as it leads to highly nontrivial phenomena, such.....»»

Category: topSource:  physorgRelated NewsMar 15th, 2024

Wind and wave observations reveal the seasonal variations in wave-induced stress over global ocean

Recently, a study by Ph.D. student Jing Ren from Ocean University of China and Associate Prof. Sheng Chen and Prof. Fangli Qiao from First Institute of Oceanography, Ministry of Natural Resources was published in Science China Earth Sciences......»»

Category: topSource:  physorgRelated NewsMar 14th, 2024

New method enables synthesis of hundreds of new 2D materials

Materials that are incredibly thin, only a few atoms thick, exhibit unique properties that make them appealing for energy storage, catalysis and water purification. Researchers at Linköping University, Sweden, have now developed a method that enable.....»»

Category: topSource:  physorgRelated NewsMar 14th, 2024

Operational modal analysis of the Artemis I dynamic rollout test

Operational modal analysis (OMA) techniques have been used to identify the modal characteristics of the Artemis I launch vehicle during the Dynamic Rollout Test (DRT) and Wet Dress Rehearsal (WDR) configuration prior to launch. Forces induced during.....»»

Category: topSource:  physorgRelated NewsMar 12th, 2024

Researchers see an increase in the number of extreme cold days in North China during 2003–2012

How extreme weather and climate events change is an intriguing issue in the context of global warming. As IPCC AR6 points out, cold extremes have become less frequent and less severe since the 1950s, mainly driven by human-induced climate change. How.....»»

Category: topSource:  physorgRelated NewsMar 8th, 2024

Scientists propose new scheme for the quantum battery using waveguides

A new study by researchers at Boston University proposes a quantum battery (QB) charging scheme based on a rectangular hollow metal waveguide. This approach allows them to overcome environment-induced decoherence and charging distance limitations. Th.....»»

Category: topSource:  physorgRelated NewsMar 7th, 2024

Bioengineering company creates induced pluripotent stem cells from elephant skin cells

A team of bioengineers at de-extinction company Colossal Biosciences has announced that they created induced pluripotent stem cells (iPSC) from elephant skin cells. In speaking with the press, officials with the team reported that they are still in t.....»»

Category: topSource:  pcmagRelated NewsMar 7th, 2024

What drives "drug-induced homicide" prosecutions in North Carolina?

A new study finds that prosecutors in North Carolina believe "drug-induced homicide" (DIH) laws are effective at both reducing drug overdoses in a community and curtailing the distribution of illicit drugs. These beliefs are worth noting because ther.....»»

Category: topSource:  physorgRelated NewsMar 6th, 2024

New study suggests warming seas are negatively affecting beluga whales" aggregation patterns

Until recently, technology limitations have made it challenging to effectively study the aggregation behavior of beluga whales. As climate change continues and sea surface temperatures rise quickly, the ability to do so becomes a priority, requiring.....»»

Category: topSource:  physorgRelated NewsMar 5th, 2024