Results 81 to 90 of about 1,079,884 (299)

Structure and elasticity of CaC2O5 suggests carbonate contribution to the seismic anomalies of Earth’s mantle

Nature Communications
Knowledge of carbonate compounds under high pressure inside Earth is key to understanding the internal structure of the Earth, the deep carbon cycle and major geological events.
Hanyu Wang, Lei Liu, Zihan Gao, Longxing Yang, Gerile Naren, Shide Mao   +5 more
doaj   +1 more source

SmallTalk: a novel small‐sized fusion tag for peptide expression and purification

FEBS Open Bio, EarlyView.
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq, Nestor G. Casillas‐Vega, Alma Gomez‐Loredo, Xristo Zarate   +3 more
wiley   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Preliminary Results on Hydrogen Concentration Time Series in Spring Gases from the Pamir–Western Himalayan Syntaxis: Variability and Tectonic Instability

Applied Sciences
Identifying reliable geochemical signals that reflect crustal stress evolution remains a major challenge in earthquake monitoring. Spring fluids, due to their deep circulation and rapid response, provide an important window into fault-zone processes ...
Jiao Tian, Jingchao Li, Yuwen Wang, Miao He, Shihan Cui, Bingyu Yao, Zhaojun Zeng, Jinyuan Dong, Changhui Ju, Chang Lu, Xiaocheng Zhou   +10 more
doaj   +1 more source

Saltation thresholds and entrainment of fine particles at Earth and Martian pressures [PDF]

An open circuit wind tunnel designed to operate in a large vacuum chamber was built at NASA-Ames to investigate saltation threshold, flux, deflation rates, and other aeolian phenomena on the planet Mars.
Greeley, Ronald, Leach, Rodman, Pollack, James   +2 more
core   +1 more source

Harvesting Near Earth Asteroid Resources Using Solar Sail Technology [PDF]

, 2017
Near Earth asteroids represent a wealth of material resources to support future space ventures. These resources include water from C-type asteroids for crew logistic support; liquid propellants electrolytically cracked from water to fuel crewed vehicles ...
McInnes, Colin
core  

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Trace element detection in anhydrous minerals by micro-scale quantitative nuclear magnetic resonance spectroscopy

Nature Communications
Nominally anhydrous minerals (NAMs) composing Earth’s and planetary rocks incorporate microscopic amounts of volatiles. However, volatile distribution in NAMs and their effect on physical properties of rocks remain controversial. Thus, constraining trace
Yunhua Fu, Renbiao Tao, Lifei Zhang, Shijie Li, Ya-Nan Yang, Dehan Shen, Zilong Wang, Thomas Meier   +7 more
doaj   +1 more source

The Applicability of Nonlinear Systems Dynamics Chaos Measures to Cardiovascular Physiology Variables [PDF]

, 1991
Three measures of nonlinear chaos (fractal dimension, Approximate Entropy (ApEn), and Lyapunov exponents) were studied as potential measures of cardiovascular condition.
Hooker, John C.
core   +1 more source

Enhancing Oncological Care for India's Aging Population: Addressing the Complex Needs of Older Adults With Cancer

Aging and Cancer, EarlyView.
Aging‐associated physiological and molecular alterations pose significant challenges in cancer management among India's elderly. Limited geriatric oncology expertise, financial constraints, and inadequate specialized care exacerbate disparities. Strategic expansion of insurance coverage, integration of palliative care, and infrastructural advancements ...
Nihanthy D. Sreenath, Mathigatta Shivarudraiah S, Rajath Govind, Kaushik M R   +3 more
wiley   +1 more source