keyword
https://read.qxmd.com/read/38537186/can-the-width-of-lower-tongue-base-preoperative-sonography-measurements-predict-hypoxemia-during-esophagogastroduodenoscopy-under-sedation-in-asa-i-ii-patients
#1
JOURNAL ARTICLE
Hao Wu, Min Xia, Xu Chen, Sheng Wang, Wei Zhang
The most common complication during esophagogastroduodenoscopy (EGD) under sedation is hypoxemia. There is a scarcity of indicators to predict the risk of hypoxemia during EGD under sedation accurately. The width of the lower tongue base measured by ultrasound (US) is considered to be a significant predictor of the presence and severity of obstructive sleepapnea syndrome (OSAS), which develops hypoxemia by a similar mechanism to EGD under sedation. This study aimed to observe its ability to predict hypoxemia during EGD under sedation...
January 30, 2024: Medical Ultrasonography
https://read.qxmd.com/read/38537185/influence-of-body-mass-normalization-on-the-correlations-between-muscle-cross-sectional-area-and-physical-performance-outcomes-in-older-women
#2
JOURNAL ARTICLE
Ty B Palmer, Bailey M Palmer
AIMS: Normalization is a method used to account for body mass in clinical practice and research. It is unclear if this method will improve the correlation between muscle cross-sectional area (CSA) and physical performance. We examined the correlations between quadriceps muscle morphology parameters and physical performance outcomes in older women. Material and methods: Twenty older women participated in this study. Ultrasound imaging was used to measure quadriceps muscle CSA and echo intensity...
January 30, 2024: Medical Ultrasonography
https://read.qxmd.com/read/38537184/multiparametric-ultrasound-evaluation-of-liver-fibrosis-steatosis-and-viscosity-in-patients-with-chronic-liver-disease
#3
JOURNAL ARTICLE
Iulia Minciuna, Madalina Taru, Andreea Fodor, Oana Nicoara Farcau, Petra Fischer, Corina Radu, Monica Lupsor-Platon, Horia Stefanescu, Bogdan Procopet
AIMS: This study assessed the effectiveness of three ultrasound-based techniques (2D-SWE.PLUS, Att.PLUS, Vi.PLUS) for non-invasive evaluation of liver fibrosis, steatosis, and inflammation in chronic liver disease (CLD) patients.Materials and methods: Involving 209 consecutive compensated CLD patients, the study compared these ultrasound methods from Aixplorerwith standard Vibration-controlled Transient Elastography (VCTE) and Controlled Attenuation Parameter (CAP) from Fibroscan, alongside non-invasive serological markers...
February 7, 2024: Medical Ultrasonography
https://read.qxmd.com/read/38537179/dispersion-control-over-molecule-cohesion-exploiting-and-dissecting-the-tipping-power-of-aromatic-rings
#4
JOURNAL ARTICLE
Ricardo A Mata, Tlektes Zhanabekova, Daniel A Obenchain, Martin A Suhm
ConspectusWe have learned over the past years how London dispersion forces can be effectively used to influence or even qualitatively tip the structure of aggregates and the conformation of single molecules. This happens despite the fact that single dispersion contacts are much weaker than competing polar forces. It is a classical case of strength by numbers, with the importance of London dispersion forces scaling with the system size. Knowledge about the tipping points, however difficult to attain, is necessary for a rational design of intermolecular forces...
March 27, 2024: Accounts of Chemical Research
https://read.qxmd.com/read/38537174/preparation-of-antibacterial-biobased-fibers-by-triaxial-microfluidic-spinning-technology-using-ionic-liquids-as-the-solvents
#5
JOURNAL ARTICLE
Zhimin Zhao, Junlei Wang, Hanmeng Yuan, Jie Xu, Hongshuai Gao, Yi Nie
Bacterial infections have become a serious threat to public health. The utilization of antibacterial textiles offers an effective way to combat bacterial infections at the source, instead of relying solely on antibiotic consumption. Herein, efficient and durable antibacterial fibers based on quercetin and cellulose were prepared by a triaxial microfluidic spinning technology using ionic liquids (ILs) as the solvents. It was indicated that the structure and properties of the antibacterial fibers were affected by the type of IL and the flow rates during the triaxial microfluidic spinning process...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38537173/ultradense-electrochemical-chips-with-arrays-of-nanostructured-microelectrodes-to-enable-sensitive-diffusion-limited-bioassays
#6
REVIEW
Gabriel J C Pimentel, Lucas B Ayres, Juliana N Y Costa, Waldemir J Paschoalino, Kristi Whitehead, Lauro T Kubota, Maria H de Oliveira Piazzetta, Angelo L Gobbi, Flávio M Shimizu, Carlos D Garcia, Renato S Lima
Nanostructured microelectrodes (NMEs) are an attractive alternative to yield sensitive bioassays in unprocessed samples. However, although valuable for different applications, nanoporous NMEs usually cannot boost the sensitivity of diffusion-limited analyses because of the enlarged Debye length within the nanopores, which reduces their accessibility. To circumvent this limitation, nanopore-free gold NMEs were electrodeposited from 45 μm SU-8 apertures, featuring nanoridged microspikes on a recessed surface of gold thin film while carrying interconnected crown-like and spiky structures along the edge of a SU-8 passivation layer...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38537162/advancing-bone-targeted-drug-delivery-leveraging-biological-factors-and-nanoparticle-designs-to-improve-therapeutic-efficacy
#7
JOURNAL ARTICLE
Baixue Xiao, Marian A Ackun-Farmmer, Emmanuela Adjei-Sowah, Yuxuan Liu, Indika Chandrasiri, Danielle S W Benoit
Designing targeted drug delivery systems to effectively treat bone diseases ranging from osteoporosis to nonunion bone defects remains a significant challenge. Previously, nanoparticles (NPs) self-assembled from diblock copolymers of poly(styrene- alt -maleic anhydride)- b -poly(styrene) (PSMA- b -PS) delivering a Wnt agonist were shown to effectively target bone and improve healing via the introduction of a peptide with high affinity to tartrate-resistant acid phosphatase (TRAP), an enzyme deposited by the osteoclasts during bone remodeling...
March 27, 2024: ACS Biomaterials Science & Engineering
https://read.qxmd.com/read/38537160/synergistic-protecting-etching-synthesis-of-carbon-nanoboxes-silicon-for-high-capacity-lithium-ion-battery
#8
JOURNAL ARTICLE
Xiaofang Liu, Manman Yuan, Wenhua Shi, Anmin Fei, Yawen Tian, Zhi-Yi Hu, Lihua Chen, Yu Li, Bao-Lian Su
Silicon (Si) is considered as the most likely choice for the high-capacity lithium-ion batteries owing to its ultrahigh theoretical capacity (4200 mA h g-1 ) being over 10 times than that of traditional graphite anode materials (372 mA h g-1 ). However, its widespread application is limited by problems such as a large volume expansion and low electrical conductivity. Herein, we design a hollow nitrogen-doped carbon-coated silicon (Si@Co-HNC) composite in a water-based system via a synergistic protecting-etching strategy of tannic acid...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38537138/it-s-a-trap-an-approachable-guide-to-constructing-and-using-rotating-arm-air-samplers
#9
JOURNAL ARTICLE
Jill C Check, Rebecca Harkness, Lexi Heger, Martin I Chilvers, Walter F Mahaffee, Monique L Sakalidis, Timothy D Miles
An increasing number of researchers are looking to understand the factors affecting microbial dispersion but are often limited by the costs of commercially available air samplers. Some have reduced these costs by designing self-made versions, however there are no published sampler designs and there is limited information provided on the actual construction process. Lack of appropriate reference material limits the use of these self-made samplers by many researchers. This manuscript provides a guide to designing and constructing rotating-arm impaction air samplers by covering 1) environmental considerations; 2) construction materials and equipment; 3) the construction process; and 4) air sampler deployment...
March 27, 2024: Plant Disease
https://read.qxmd.com/read/38537119/constructing-linear-oriented-pre-vascularized-human-spinal-cord-tissues-for-spinal-cord-injury-repair
#10
JOURNAL ARTICLE
Caixia Fan, Hui Cai, Lulu Zhang, Xianming Wu, Junyan Yan, Lifang Jin, Baowei Hu, Jiaxiong He, Yanyan Chen, Yannan Zhao, Jianwu Dai
Repairing spinal cord injury (SCI) is a global medical challenge lacking effective clinical treatment. Developing human-engineered spinal cord tissues that can replenish lost cells and restore a regenerative microenvironment offers promising potential for SCI therapy. However, creating vascularized human spinal cord-like tissues that mimic the diverse cell types and longitudinal parallel structural features of spinal cord tissues remains a significant hurdle. In present study, vascularized spinal cord tissues (VSCT) were engineered using embryonic human spinal cord-derived neural cells and endothelial cells on linear ordered collagen scaffolds (LOCS)...
March 27, 2024: Advanced Healthcare Materials
https://read.qxmd.com/read/38537112/versatile-composite-binder-with-fast-lithium-ion-transport-for-licoo-2-cathodes
#11
JOURNAL ARTICLE
Wenjun Ye, Wenjie He, Jiang Long, Peng Chen, Bing Ding, Hui Dou, Xiaogang Zhang
The low ionic conductivity of LiCoO2 limits the rate performance of the overall electrode. Here, a polymeric composite binder composed of poly(vinylidene fluoride) (PVDF) and poly(ethylene oxide) (PEO) is reported to efficiently improve the ion transport in the LiCoO2 electrode. This is where the lithium-ion transport channel constructed by oxygen atoms of PEO can afford the electrode a lithium-ion transport number ( t Li+ ) as high as 0.70 with the optimized composite binder in a mass ratio of 1:1 (O5F5), significantly higher than that of traditional PVDF (0...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38537099/-not-available
#12
JOURNAL ARTICLE
Maria Eugenia Carducci, Gustavo Izbizky
UNLABELLED: Introducción: Se observa un progresivo aumento en la edad de las mujeres al primer embarazo, situación que se ha asociado con mayor riesgo de efectos maternos y perinatales adversos. OBJETIVO: Describir las características y los resultados maternos y perinatales de nulíparas de 40 años y mayores y compararlos con los de nulíparas menores de 40. Material y métodos: Cohorte retrospectiva de embarazos que atendieron su parto en un hospital privado universitario mediante revisión de registros...
March 27, 2024: Revista de la Facultad de Ciencias Médicas
https://read.qxmd.com/read/38537024/evaluation-the-stress-distribution-in-root-canals-by-3d-finite-element-analysis-after-the-materials-used-in-reattaching-the-vertically-root-fractured-fragments
#13
JOURNAL ARTICLE
Senem Yiğit Özer, Salih Danişman, Törem Özer
The aim was to evaluate the effect of stress distribution on vertical, horizontal, and oblique forces on the tooth model after reattaching the fragments of the maxillary incisor with vertical root fracture (VRF) using different materials, by 3D finite element analysis (FEA). Tooth with a root canal, spongious, and cortical bone models were designed. VRF was modeled on a tooth with 4 different re-attachment models: Group 1: dual-cure cement (DC)+fiber reinforced composite (FRC), Group 2: DC+polyethylene fiber, Group 3: DC+glass fiber, and Group 4:DC...
2024: Brazilian Dental Journal
https://read.qxmd.com/read/38537023/comparative-study-of-physical-chemical-properties-of-bioactive-glass-ionomer-cement
#14
JOURNAL ARTICLE
Nádia Buzignani Pires Ramos, Klissia Romero Felizardo, Sandrine Bittencourt Berger, Ricardo Danil Guiraldo, Murilo Baena Lopes
This study analyzed the physical-chemical properties of bioactive ionomer materials. Cention N bioactive materials were evaluated chemically activated (CN) and light-cured (CN-LC), Equia Forte Fill (EQUI); conventional resin composite Filtek Z350 XT (Z350); resin glass ionomer cement Riva light Cure (RIVA) and flowable resin composite Filtek Bulk Fill Flow (BULK-F) were evaluated. Sixty specimens (n=10) were prepared for sorption (SR), solubility (SL), flexural strength (FS), shrinkage stress (SS), conversion degree (CD), microhardness (MI), and surface roughness (SR) tests...
2024: Brazilian Dental Journal
https://read.qxmd.com/read/38537018/natural-canal-deviation-and-dentin-thickness-of-mesial-root-canals-of-mandibular-first-molars-assessed-by-microcomputed-tomography
#15
JOURNAL ARTICLE
Carolina Alonso Amorim, Marília F Marceliano-Alves, Isabelle Louise Gomes, José C Provenzano, Flávio R F Alves
The aim of this study was to assess the centralization and dentin thickness of mesial root canals of the first mandibular molars by microcomputed tomography (micro-CT). Material and methods: Ninety-nine mandibular molars of Vertucci's type IV canals were scanned by micro-CT. The mesiodistal deviation and centroid were assessed, in both mesiobuccal (MB) and mesiolingual (ML) canals, for the apical 4mm and the full canal length. Results: The dentin thickness was similar for both MB and ML canals. The narrowest thickness was in the distal wall of an MB canal (0...
2024: Brazilian Dental Journal
https://read.qxmd.com/read/38536957/bismuth-doping-boosting-na-diffusion-kinetics-of-layered-oxide-cathode-with-radially-oriented-010-active-lattice-facet-for-sodium-ion-batteries
#16
REVIEW
Yu-Xin Chang, Yu-Jie Guo, Ya-Xia Yin, Wei-Huan He, Mengmeng Yan, Li-Rong Zheng, Jing Zhang, Qinghua Zhang, Dong Su, Xing Zhang, Jianfeng Mao, Guanjie Li, Shilin Zhang, Sailong Xu
O3-type layered oxide cathodes (Na x TMO2 ) for sodium-ion batteries (SIBs) have attracted significant attention as one of the most promising potential candidates for practical energy storage applications. The poor Na+ diffusion kinetics is, however, one of the major obstacles to advancing large-scale practical application. Herein, we report bismuth-doped O3-NaNi0.5 Mn0.5 O2 (NMB) microspheres consisting of unique primary nanoplatelets with the radially oriented {010} active lattice facets. The NMB combines the advantages of the oriented and exposed electrochemical active planes for direct paths of Na+ diffusion, and the thick primary nanoplatelets for less surface parasitic reactions with the electrolyte...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38536956/integrated-in-situ-fabrication-of-cuo-nanorod-decorated-polymer-membranes-for-the-catalytic-flow-through-reduction-of-p-nitrophenol
#17
JOURNAL ARTICLE
S Amir H Hesaraki, Oleg Prymak, Markus Heidelmann, Mathias Ulbricht, Lukas Fischer
We developed a novel method to fabricate copper nanorods in situ in a poly(ether sulfone) (15 wt %) casting solution by a sonochemical reduction of Cu2+ ions with NaBH4 . The main twist is the addition of ethanol to remove excess NaBH4 through Cu(0) catalyzed ethanolysis. This enabled the direct use of the resulting copper-containing casting dispersions for membrane preparation by liquid nonsolvent-induced phase separation and led to full utilization of the copper source, generating zero metal waste. We characterized the copper nanorods as presented in the membranes via scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and UV/vis spectroscopy...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38536948/control-etched-ti-3-c-2-t-x-mxene-nanosheets-for-a-low-voltage-operating-flexible-memristor-for-efficient-neuromorphic-computation
#18
JOURNAL ARTICLE
Jeny Gosai, Mansi Patel, Lingli Liu, Aziz Lokhandwala, Parth Thakkar, Mun Yin Chee, Muskan Jain, Wen Siang Lew, Nitin Chaudhari, Ankur Solanki
Hardware neural networks with mechanical flexibility are promising next-generation computing systems for smart wearable electronics. Overcoming the challenge of developing a fully synaptic plastic network, we demonstrate a low-operating-voltage PET/ITO/p-MXene/Ag flexible memristor device by controlling the etching of aluminum metal ions in Ti3 C2 T x MXene. The presence of a small fraction of Al ions in partially etched MXene (p-Ti3 C2 T x ) significantly suppresses the operating voltage to 1 V compared to 7 V from fully Al etched MXene (f-Ti3 C2 T x )-based devices...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38536947/layer-number-dependent-magnetism-in-the-co-doped-van-der-waals-ferromagnet-fe-3-gate-2
#19
JOURNAL ARTICLE
Mingjie Wang, Kejia Zhu, Bin Lei, Yazhou Deng, Tao Hu, Dongsheng Song, Haifeng Du, Mingliang Tian, Ziji Xiang, Tao Wu, Xianhui Chen
Recently, van der Waals (vdW) antiferromagnets have been proposed to be crucial for spintronics due to their favorable properties compared to ferromagnets, including robustness against magnetic perturbation and high frequencies of spin dynamics. High-performance and energy-efficient spin functionalities often depend on the current-driven manipulation and detection of spin states, highlighting the significance of two-dimensional metallic antiferromagnets, which have not been much explored due to the lack of suitable materials...
March 27, 2024: Nano Letters
https://read.qxmd.com/read/38536924/different-components-of-cognitive-behavioral-therapy-affect-specific-cognitive-mechanisms
#20
JOURNAL ARTICLE
Agnes Norbury, Tobias U Hauser, Stephen M Fleming, Raymond J Dolan, Quentin J M Huys
Psychological therapies are among the most effective treatments for common mental health problems-however, we still know relatively little about how exactly they improve symptoms. Here, we demonstrate the power of combining theory with computational methods to parse effects of different components of cognitive-behavioral therapies onto underlying mechanisms. Specifically, we present data from a series of randomized-controlled experiments testing the effects of brief components of behavioral and cognitive therapies on different cognitive processes, using well-validated behavioral measures and associated computational models...
March 29, 2024: Science Advances
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