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1641
An animal model study of simplified optical navigation system-assisted percutaneous lumbar transforaminal puncture
Published 2025-08-01“…The system significantly improves puncture accuracy while markedly decreasing both the number of puncture attempts and fluoroscopy exposures compared to conventional techniques.…”
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1642
Study on the Preparation and Corrosion Properties of Hydrotalcite Composite Permeation Layer via Plasma Electrolytic Carbonitriding
Published 2024-11-01“…In order to improve the corrosion resistance of steel materials treated by plasma electrolytic infiltration,annealed 20 steel was used as the experimental substrate.Micro-nanopores formed during the plasma electrolytic carbonitriding process were utilized as containers to load magnesium-iron layered double hydroxides (Mg-Fe-LDHs) as a corrosion inhibitor,and the effects of Mg-Fe-LDHs on the corrosion performance of 20 steel were investigated.First,formamide was used as the carbon and nitrogen source,and KCl was used as the conductive salt.These components were mixed with deionized water to form an electrolyte.Then,the samples were treated at a constant DC pulse voltage of 220 V for 9 min to produce a carbonitrided layer (denoted as PEC/N samples).Subsequently,the PEC/N samples were immersed in a Mg-Fe-LDHs precursor solution containing urea,MgSO4 and Na2CO3,and hydrothermally crystallized at 140 ℃for 10 h to obtain a composite infiltration layer (denoted as PEC/N-LDHs samples).The performance of the composite infiltration layers was analyzed using a microhardness tester,scanning electron microscopy (SEM),X-ray diffraction (XRD) and electrochemical testing.Results showed that the microhardness of the composite infiltration layer reached approximately 900 HV,which was 4.6 times higher than that of the substrate.The carbonitrided layer of the PEC/N samples was about 20 μm,with a smooth and flat cross-section but a rough,porous and honeycomb-like surface.After hydrothermal synthesis of LDHs,the surface became smooth,lacking a visible honeycomb structure,and a large number of flake-like crystalline deposits appeared on the surface.The XRD spectra of the PEC/N samples showed absorption peaks corresponding to Fe3C,Fe5C2,α-Fe and Fe3N phases.After the in-situ loading of Mg-Fe-LDHs,new absorption peaks corresponding to the (003),(006) and (009) crystal planes of Mg-Fe-LDHs appeared in the XRD spectra of the PEC/N-LDHs samples.Combined with SEM morphology analysis,it was confirmed that Mg-Fe-LDHs were successfully loaded,presenting a flake-like structure.Compared with 20 steel,the PEC/N samples exhibited improved corrosion potential (Ecorr) and corrosion current density (Jcorr),reaching-0.451 V and 75.22 μA/cm2,respectively,although the lowfrequency impedance modulus (|Z |0.01 Hz) showed no significant increase,reaching only 998.5 Ω·cm2.After loading Mg-Fe-LDHs,the PEC/N-LDHs samples demonstrated further improvements,with Ecorr,Jcorr and |Z |0.01 Hz reaching-0.355 V,39.11 μA/cm2 and 6 586.0 Ω·cm2,respectively,showing significant enhancement compared to both 20 steel and PEC/N samples.These results indicated that plasma electrolytic carbonitriding treatment of 20 steel could produce a carbonitrided layer with high hardness.Additionally,the hydrothermal loading of LDHs further improved the corrosion resistance of the composite infiltration layer without affecting its hardness.The PEC/N-LDHs composite infiltration layer thus achieved both high hardness and superior corrosion resistance.…”
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1643
Neutralizing Antibody Spectrum in COVID-19 Patients who Became Ill During the Circulation of Different SARS-CoV-2 Variants
Published 2024-11-01“…Thus, a fraction of people, regardless of age, who became infected in 2020-2021 have an antibody spectrum capable of neutralizing current and possibly related SARS-CoV-2 variants that will emerge in the near future. …”
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1644
Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis
Published 2024-12-01“…Date palm fruit (Phoenix dactylifera L.) is a well-known fruit that has become increasingly popular among consumers due to its pleasant flavor, nutrient-dense content, and nutraceutical characteristics. …”
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1645
Improving the charge transport of perovskite nanocrystal light-emitting-diodes through Benzylammonium ligand exchange
Published 2025-03-01“…As results, the LHP LEDs using these ligand-exchanged LHP NCs, achieving a notable increase maximum current efficiency (CEmax,) to 5.88 %, 19.5 cd A-1 at BA bromide, and 5.50 %, 16.6 cd A-1 at BA chloride, compared to devices using pristine LHP NCs, which achieved external quantum efficiency (EQE) 2.4 %, CEmax 7.8 cd A-1.…”
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1646
Life cycle assessment of polyethylene packaging and alternatives on the European market
Published 2025-06-01“…The assessment covered the material and production phase to end-of-life (EoL), based on current conditions in Europe (EU27 + UK). The potential impacts from the packaged product's production and usage phase were excluded. …”
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1647
Transmission network and phylogenetic analysis reveal older male-centered transmission of CRF01_AE and CRF07_BC in Guangxi, China
Published 2023-12-01“…In China, the number of newly reported HIV infections in older people is increasing rapidly. However, clear information on the impact of older people on HIV transmission is limited. …”
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1648
Addressing Shortcomings in Contingency Standards of Care
Published 2022-09-01“…Lack of Formalization One shortcoming of current contingency measures is that they fail to meet the same level of procedural detail and clarity as crisis standards. …”
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1649
The most common errors in automatic ECG interpretation
Published 2025-05-01“…Results of our studies should increase the caution among clinicians not to rely fully on the automated analysis. …”
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1650
Multi-method evaluation of volatile flavor compounds in five kiwifruit varieties
Published 2025-07-01“…[Objective] Fruit wine, as a food of fruit processing, not only enhances the flavor diversity of kiwifruit but also increases its biological activity, leading to the production of kiwifruit wine with a unique flavor, combined fruit with wine aromas, and rich nutrition. …”
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1651
Rapid diagnosis of Mycoplasma pneumoniae and prediction of antibiotic resistance by nanopore adaptive sampling
Published 2024-12-01“…However, clinical samples often contain a considerable amount of human DNA, potentially masking pathogen data. …”
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1652
Dealing with Complexity – Knowledge, design, and management of the built environment
Published 2024-12-01“…How do we place knowledge and learning into a system to better understand the current era’s multidimensional, fundamental, and global issues in their irreducible complexity? …”
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1653
Comparative chromium adsorptive capacity of different low-cost materials using fixed bed column
Published 2025-07-01“…Abstract The accessibility of pure water is crucial for various human activities and is increasingly in demand due to the growing global population. …”
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1654
Reims antique, acquis et perspectives
Published 2022-11-01“…This article adopts an approach designed to assess the current state of acquired knowledge and developed hypotheses relative to the spatial organization of the city, enriching both with the most recent research developments. …”
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1655
Application of dry electrodes in supercapacitors and lithium-ion batteries
Published 2025-04-01“…Finally, the challenges and issues in the current use of dry electrodes in supercapacitors and lithium-ion batteries are summarized, along with proposed future directions. …”
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1656
Solid waste management service chain and sanitation safety: a case study of existing practice in Addis Ababa, Ethiopia
Published 2024-08-01“…Additionally, 85% of households used storage and transport containers that had leaks, potentially leading to contamination and infection. …”
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1657
Digital augmentation of aftercare for patients with anorexia nervosa: the TRIANGLE RCT and economic evaluation
Published 2025-07-01“…The majority (76%) were recruited from inpatient care, including 19% currently admitted under the Mental Health Act (MHA) [16% had previous admissions (median 2) under the MHA]. …”
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1658
HIV-1 suppression and rare dolutegravir resistance in antiretroviral-experienced people with HIV in Liberia
Published 2025-05-01“…Abstract Background Increasingly, persons with HIV in Liberia are receiving antiretroviral therapy containing the integrase strand-transfer inhibitor (InSTI) dolutegravir (DTG), but the prevalence of and factors associated with virologic failure and HIV drug resistance (HIVDR) remain unknown. …”
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1659
CREATING THE KULTUK POLYGON FOR EARTHQUAKE PREDICTION: VARIATIONS OF (234U/238U) AND 87SR/86SR IN GROUNDWATER FROM ACTIVE FAULTS AT THE WESTERN SHORE OF LAKE BAIKAL
Published 2015-12-01“…Determinations of (234U/238U) in groundwater samples are used for monitoring current deformations in active faults (parentheses denote activity ratio units). …”
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1660
Spatio-temporal forecasting of COVID-19 cases in the Netherlands for source and contact tracing
Published 2025-05-01“…Due to the rapid increases in incidence of COVID-19 in the Netherlands, the capacity to conduct a full SCT quickly became insufficient. …”
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