Results 81 to 90 of about 61,270 (266)

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

open access: yesAdvanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa   +8 more
wiley   +1 more source

Experimental Analysis of Shale Cuttings Migration in Horizontal Wells

open access: yesApplied Sciences
The extraction of shale gas via horizontal drilling presents considerable challenges, primarily due to the accumulation of cuttings within the annular space, resulting in increased friction, torque, and potential drilling complications.
Qiang Fang   +4 more
doaj   +1 more source

Multi‐Omics Profiling Reveals Immunomodulatory and Pro‐Regenerative Effects of a Graphene Oxide–Collagen Scaffold in Massive Rotator Cuff Tears

open access: yesAdvanced Science, EarlyView.
A graphene oxide/collagen scaffold is developed for chronic massive rotator cuff tear repair. The scaffold improves compressive stability, supports reparative mesenchymal differentiation, and modulates the immune microenvironment. In chronic MRCT models, it reduces muscle degeneration, enhances tendon–bone regeneration, and improves functional recovery,
Renwen Wan   +24 more
wiley   +1 more source

Hydrothermally synthetized WO3 coated stainless steel mesh for oil–water separation purposes

open access: yesJournal of Petroleum Exploration and Production Technology
To separate oil–water mixtures especially in oil field operations, new energy-efficient methods are urgently required. Conventional separation techniques using demulsifiers for separation of oil–water mixtures or even use of membranes usually suffered ...
Mohammad Nouri   +3 more
doaj   +1 more source

Study on main controlling factors of high-felsic shale formation in Qiongzhusi Formation in Jingyan and Ziyang areas

open access: yesShiyou shiyan dizhi
The Lower Cambrian Qiongzhusi Formation in the Jingyan and Ziyang areas is an important shale gas replacement system in the Sichuan Basin, characterized by high-felsic content and favorable reservoir physical properties.
Liang XIONG   +3 more
doaj   +1 more source

Impacts of COVID-19 on the oil and gas industry in Brazil. [PDF]

open access: yesRev Bras Med Trab, 2023
Almeida BDA   +4 more
europepmc   +1 more source

SERS Facemask for Rapid and Portable Sensing Mycobacterium Tuberculosis Antigens for TB Screening

open access: yesAdvanced Science, EarlyView.
Our study introduced an Au─Ag embedded covalent organic framework (U@COF) ‐mediated facemask for sensing TB antigen ESAT‐6/CFP‐10 complex in clinical droplet samples toward TB screening. Practical analysis of clinical samples demonstrated the availability of our facemask, which is capable of identifying the TB subjects (N = 17) from healthy candidates (
Lingzhi Chen   +20 more
wiley   +1 more source

Empirical study of magnetohydrodynamic effect on fluid flow in clayey porous media

open access: yesPetroleum Research
Enhancing oil recovery from clayey reservoirs is a significant challenge in petroleum industry due to complex interactions between fluids and rock surfaces, particularly clay swelling.
Farad Kamyabi, Arif Mammad-Zade
doaj   +1 more source

Temporal Interference Stimulation Enhances Neural Regeneration

open access: yesAdvanced Science, EarlyView.
Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressotti   +15 more
wiley   +1 more source

Thermoxidation Stability of Gear Oils for Electric Vehicles

open access: yesLubricants
This article presents studies on the degradation susceptibility of two commercially available gear oils used in electric passenger vehicle transmissions. A series of aging tests were conducted using selected research methods.
Agnieszka Skibińska   +4 more
doaj   +1 more source

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