Results 41 to 50 of about 2,073,600 (331)

Atomization structure and characteristic analysis of catalyst precursor [PDF]

open access: yesE3S Web of Conferences
The preparation technology of catalysts is the key determinant of catalytic efficiency and production costs. This study introduces atomization pyrolysis technology to enable continuous production of catalysts and carbon nanotubes (CNTs), addressing the ...
Wang Lianlian   +7 more
doaj   +1 more source

Anemoside A3 Inhibits Macrophage M2-Like Polarization to Prevent Triple-Negative Breast Cancer Metastasis

open access: yesMolecules, 2023
Triple negative breast cancer (TNBC) exhibits the characteristics of strong metastatic ability and a high recurrence rate, and M2-type macrophages play an important role in this process.
Peng Liu   +5 more
doaj   +1 more source

Biodegradable polymers based on trimethylene carbonate for tissue engineering applications [PDF]

open access: yes, 2002
In the field of tissue engineering, the search for suitable materials for use in the preparation of scaffolds to host the developing tissue represents a major subject of study.
Pego, Ana Paula Gomes Moreira
core   +2 more sources

XAFS analyses of molten metal fluorides [PDF]

open access: yes, 2009
X-ray absorption fine structure studies of molten metal fluorides containing the materials related to nuclear engineering are intensively summarized. By using XAFS spectra data of divalent and trivalent cation metal fluorides in molten state which have ...
Adya, Ashok K.   +4 more
core   +3 more sources

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

open access: yesFEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer   +7 more
wiley   +1 more source

Exploration on the Extraction of Phenolic Acid from Abutilon theophrasti and Antioxidant and Antibacterial Activities

open access: yesSeparations
This study selected Abutilon theophrasti Medicus as the research object and optimized the ultrasonic-assisted heat reflux extraction process using response surface methodology to achieve efficient extraction of phenolic acids from its leaves.
Xiaofei Xie   +8 more
doaj   +1 more source

Conditional preparation of arbitrary atomic Dicke states

open access: yes, 2008
We propose an experimentally accessible procedure for conditional preparation of highly non-classical states of collective spin of an atomic ensemble.
Fiurasek, Jaromir, Lemr, Karel
core   +1 more source

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

open access: yesFEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur   +5 more
wiley   +1 more source

Influence of Propagation Distance on Characteristic Parameters of Acoustic Emission Signals in Concrete Materials Based on Low-Frequency Sensor

open access: yesAdvances in Civil Engineering, 2022
Acoustic emission is a nondestructive testing technology based on the propagation of transient elastic waves captured by acoustic emission sensors. The acoustic emission signal depends not only on the distance and quality of the propagation path of the ...
Fen Liu   +6 more
doaj   +1 more source

The Oral Tolerance as a Complex Network Phenomenon [PDF]

open access: yes, 2015
Date of Acceptance: 23/05/2015 Funding: MSB acknowledges the Engineering and Physical Sciences Research Council (EPSRC) - UK grant EP/I032606/1. PJM and MD received regular scholarships from the Brazilian the following agency: Higher Education Personnel ...
Baptista, Murilo Da Silva   +5 more
core   +2 more sources

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