keyword
https://read.qxmd.com/read/38627455/machine-learning-based-prediction-of-heat-transfer-performance-in-annular-fins-with-functionally-graded-materials
#1
JOURNAL ARTICLE
Muhammad Sulaiman, Osamah Ibrahim Khalaf, Naveed Ahmad Khan, Fahad Sameer Alshammari, Sameer Algburi, Habib Hamam
This paper presents a study investigating the performance of functionally graded material (FGM) annular fins in heat transfer applications. An annular fin is a circular or annular structure used to improve heat transfer in various systems such as heat exchangers, electronic cooling systems, and power generation equipment. The main objective of this study is to analyze the efficiency of the ring fin in terms of heat transfer and temperature distribution. The fin surfaces are exposed to convection and radiation to dissipate heat...
April 16, 2024: Scientific Reports
https://read.qxmd.com/read/37932814/mettl3-mediated-m6a-methylation-regulates-ovarian-cancer-progression-by-recruiting-myeloid-derived-suppressor-cells
#2
JOURNAL ARTICLE
Jinyong Wang, Dakai Ling, Lulin Shi, Huayun Li, Minhua Peng, Huihong Wen, Tao Liu, Ruifang Liang, Yongjian Lin, Laiyou Wei, Guangzhi Zhang, Shanze Chen
BACKGROUND: Ovarian cancer (OC) typically develops an immunosuppressive microenvironment by funtional changes of host immune cells. Dysregulated m6A level is associated with cancer progression via the intrinsic oncogenic pathways. However, the role of m6A in regulating host immune cell function during anti-tumor immunity needs comprehensive analysis. This study aimed to investigate the role of METTL3, a catalytic subunit of the methyltransferase complex, in regulating host immune cell response against OC...
November 6, 2023: Cell & Bioscience
https://read.qxmd.com/read/37719450/effects-of-massage-therapy-on-preterm-infants-and-their-mothers-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#3
REVIEW
Yu Zhang, Chunlan Duan, Luying Cheng, Haihong Li
BACKGROUND: Massage therapy for preterm newborns has received increasing attention in recent years due to its beneficial clinical outcomes. However, disagreements persist in different investigations. METHOD: We performed a systematic literature search in the Cochrane Library, Embase, PubMed, Web Science, and CINAHL to retrieve randomized controlled trials of premature infants receiving massage therapy and its impact on maternal and infant outcomes. Outcomes were mother-infant attachment, oxygen saturation, motor funtion, reflex, temperature, and calorie intake...
2023: Frontiers in Pediatrics
https://read.qxmd.com/read/37456328/a-dual-center-validation-of-the-piramd-scoring-system-for-assessing-the-severity-of-ischemic-moyamoya-disease
#4
JOURNAL ARTICLE
Christiaan Hendrik Bas van Niftrik, Martina Sebök, Patrick Nicholson, Leonardo Olijnyk, Patrick Thurner, Lashmi Venkatraghavan, Joanna Schaafsma, Ivan Radovanovic, Joseph A Fisher, Timo Krings, Zsolt Kulcsár, Michael Tymianski, Luca Regli, David J Mikulis, Jorn Fierstra
BACKGROUND: Prior Infarcts, Reactivity, and Angiography in Moyamoya Disease (PIRAMD) is a recently proposed imaging-based scoring system that incorporates the severity of disease and its impact on parenchymal hemodynamics in order to better support clinical management and evaluate response to intervention. In particular, PIRAMD may have merit in identifying symptomatic patients that may benefit most from revascularization. Our aim was to validate the PIRAMD scoring system. METHODS: Patients with ischemic Moyamoya disease, who underwent catheter angiographic [modified Suzuki Score (mSS) and collateralization status], morphological MRI and a parenchymal hemodynamic evaluation with blood oxygenation-level dependent cerebrovascular reactivity (BOLD-CVR) at two transatlantic centers, were retrospectively included...
July 1, 2023: Quantitative Imaging in Medicine and Surgery
https://read.qxmd.com/read/37435657/ultrasmall-pt-nps-modified-flasklike-colloidal-motors-with-high-mobility-and-enhanced-ion-tolerance
#5
JOURNAL ARTICLE
Shurui Yuan, Ling Yang, Xiankun Lin, Qiang He
Chemically powered colloidal motors propelled by the self-phoretic effect have attracted widespread attention. However, the low motion efficiency and ion tolerance hinder their application in complex media. Herein, we report a scalable and simple method to synthesize 2.6 nm Platinum nanoparticles (Pt NPs) in the nanoporous wall of carbonaceous flasklike colloidal motors in a ligand-free manner. The obtained Pt NPs-modified flasklike colloidal motors (Pt-FCMs) are propelled by the catalytic decomposition of H2 O2 fuels...
July 12, 2023: Nanoscale
https://read.qxmd.com/read/37377727/heterometallic-uranyl-hydroxyethyl-iminodiacetic-acid-heidi-complexes-molecular-models-for-u-vi-uptake-in-complex-media
#6
JOURNAL ARTICLE
Tiron H L Jahinge, Daniel K Unruh, Tori Z Forbes
Amidoximated absorbents (AO-PAN) effectively remove U(VI) from aqueous solution, but previous studies reported more variability for complex natural waters that contain additional confounding ions and molecules. Ternary phases containing U(VI), M(III) (M = Fe(III), Al(III), Ga(III)), and organic molecules exist under these conditions and cause heterogeneous U(VI) uptake on AO-PAN. The goal of the current study is to provide additional insights into the structural features ternary complexes using N-(2-hydroxyethyl)-iminodiacetic acid (HEIDI) as the model organic chelator and explore the relevance of these species on U(VI) capture...
April 11, 2023: European Journal of Inorganic Chemistry
https://read.qxmd.com/read/36933726/comparision-of-nitrogen-removal-characteristic-and-microbial-community-in-freshwater-and-marine-recirculating-aquaculture-systems
#7
JOURNAL ARTICLE
Wenqian Zhang, Bo Liu, Zhenzhu Sun, Tingyu Wang, Simin Tan, Xin Fan, Danyang Zou, Yutong Zhuang, Xinting Liu, Yizhu Wang, Yanyu Li, Kangsen Mai, Chaoxia Ye
Recirculating aquaculture system (RAS) has a good prospect in aquaculture, but its nitrogen removal characteristics and microbial community changes in freshwater and marine water remain unclear. In this study, six RAS were designed and divided into freshwater group and marine water group with salinity of 0 ‰ and 32 ‰, respectively, and operated for 54 days to test changes in nitrogen (NH+ 4-N, NO- 2-N, NO- 3-N), extracellular polymeric substances and microbial communities...
March 16, 2023: Science of the Total Environment
https://read.qxmd.com/read/36791935/nanocomposites-based-on-halloysite-nanotubes-and-sulphated-galactan-from-red-seaweed-gloiopeltis-properties-and-delivery-capacity-of-sodium-diclofenac
#8
JOURNAL ARTICLE
Giuseppe Cavallaro, Giuseppe Lazzara, Stefana Milioto
We developed novel composite films based on biocompatible components, such as halloysite clay nanotubes and sulphated galactan (Funori) from red seaweed Gloiopeltis. The filling of the nanotubes within the sulphated galactan matrix was carried out by a green protocol (aqueous casting method) assuring that Funori/halloysite nanocomposites can be totally considered as sustainable materials. The amount of halloysite in the composites was systematically changed to explore the effects of the nanofiller concentration on the mesoscopic properties of the films...
February 13, 2023: International Journal of Biological Macromolecules
https://read.qxmd.com/read/36787280/accurate-prediction-of-three-body-intermolecular-interactions-via-electron-deformation-density-based-machine-learning
#9
JOURNAL ARTICLE
Kaycee Low, Michelle L Coote, Ekaterina I Izgorodina
This work extends the electron deformation density-based descriptor, originally developed in the electron deformation density-based interaction energy machine learning (EDDIE-ML) algorithm to predict dimer interaction energies, to the prediction of three-body interactions in trimers. Using a sequential learning process to select the training data, the resulting Gaussian process regression (GPR) model predicts the three-body interaction energy within 0.2 kcal mol-1 of the SRS-MP2/cc-pVTZ reference values for the 3B69 and S22-3 trimer data sets...
February 14, 2023: Journal of Chemical Theory and Computation
https://read.qxmd.com/read/36775785/cognitive-behavioral-therapy-achieves-better-benefits-in-relieving-postoperative-pain-and-improving-joint-function-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#10
JOURNAL ARTICLE
Feng Zhang, Li-Ying Wang, Zhi-Lan Chen, Xin-Ying Cao, Bao-Yun Chen
BACKGROUND: Cognitive behavioral therapy (CBT) is a structured, short-term psychotherapy approach that may have positive effects in terms of relieving postoperative pain. The main objective of this study was to determine the effect of CBT on pain and joint function in patients after total joint arthroplasty. METHODS: We searched 3 electronic databases including randomized controlled studies (RCTs) using CBT as an intervention. The main results of this study were to determine pain intensity by NRS, VAS, WOMAC pain Scale, PCS, and joint function by HHS, OKS, EQ-5D, ROM...
February 10, 2023: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/36655299/comparative-study-of-maxillary-growth-in-patients-with-unilateral-cleft-treated-with-and-without-pre-surgical-orthopedics
#11
JOURNAL ARTICLE
Adriana Agell Sogbe, Mariana Mitiko Aseka Garcia, Beatriz Souza Lima Wan-Dall, Nicolas E Sierra, Renato da Silva Freitas
Compare the maxillary growth of patients with Unilateral Cleft treated with pre-surgical Functional Maxillary Orthopedic (FMO) and that of who underwent a surgical procedure with no previous use of appliances. Prospective study, the patients were divided into 2 groups. G1, was composed of 12 patients who received no pre-surgical intervention and cheilorhinoplasty at 6 months of age and G2, included 12 patients treated using Pre-Surgical Funtional Maxilary Orthopedic; they underwent no surgery during the study...
January 18, 2023: Cleft Palate-craniofacial Journal
https://read.qxmd.com/read/36427684/complete-gene-sequence-and-mechanical-property-of-the-fourth-type-of-major-ampullate-silk-protein
#12
JOURNAL ARTICLE
Rui Wen, Suyang Wang, Kangkang Wang, Dong Yang, Xingjie Zan, Qing Meng
Spiders spin a great diversity of silk types for daily survival and reproduction. Of the six orb-weaver silk types, the dragline silk forming orb web frame attracts the most attention because of its extremely high tensile strength and toughness. So far, four types of major ampullate silk proteins (MaSp1-4) that make up dragline silk have been identified. These MaSp types have diversified amino acid motifs that underlie the impressive mechanical property of dragline silk by forming particular structures. Existing knowledge of MaSp4 proteins is fragmented, making it difficult to illuminate the structure and function of MaSp4...
November 22, 2022: Acta Biomaterialia
https://read.qxmd.com/read/36250807/multiple-roles-of-alkanethiolate-ligands-in-direct-formation-of-h2o2-over-pd-nanoparticles
#13
JOURNAL ARTICLE
Lin Chen, Pedro Moura, J Will Medlin, Henrik Grönbeck
Coadsorbed organic species including thiolates can promote direct synthesis of hy- drogen peroxide from H2 and O2 over Pd particles. Here, density functional theory based kinetic modeling, augmented with activity measurements and vibrational spec- troscopy are used to provide atomistic understanding of direct H2O2 formation over alkylthiolate(RS) Pd. We find that the RS species are oxidized during reaction condi- tions yielding RSO2 as the effective ligand. The RSO2 ligand shows superior ability for proton transfer to the intermediate surface species OOH, which accelerates the forma- tion of H2O2...
October 17, 2022: Angewandte Chemie
https://read.qxmd.com/read/36234067/computational-design-of-anticorrosion-properties-of-novel-low-molecular-weight-schiff-bases
#14
JOURNAL ARTICLE
Szymon Malinowski
Due to the many economic consequences and technological problems caused by the corrosion process, its inhibition is one of the most important aspects of ongoing research. Computer methods, i.e., density functional theory (DFT) methods, are of great importance to the large-scale research being conducted which allows the evaluation of the corrosion inhibition performance without conducting time-consuming, long-term and expensive experimental measurements. In this study, new corrosion inhibitors were designed in three corrosion environments on the basis of their HOMO and LUMO orbital energies-the energy difference between them and their dipole moment...
September 27, 2022: Materials
https://read.qxmd.com/read/36077251/establishment-and-characterization-of-novel-human-intestinal-in-vitro-models-for-absorption-and-first-pass-metabolism-studies
#15
JOURNAL ARTICLE
Randy Przybylla, Christina Susanne Mullins, Mathias Krohn, Stefan Oswald, Michael Linnebacher
Commonly used intestinal in vitro models are limited in their potential to predict oral drug absorption. They either lack the capability to form a tight cellular monolayer mimicking the intestinal epithelial barrier or the expression of cytochrome P450 3A4 (CYP3A4). The aim of this study was to establish a platform of colorectal cancer patient-derived cell lines for evaluation of human intestinal drug absorption and metabolism. We characterized ten 2D cell lines out of our collection with confluent outgrowth and long-lasting barrier forming potential as well as suitability for high throughput applications with special emphasis on expression and inducibility of CYP3A4...
August 30, 2022: International Journal of Molecular Sciences
https://read.qxmd.com/read/36012360/nh-2-functionalized-magnetic-nanoparticles-for-the-n-glycomic-analysis-of-patients-with-multiple-sclerosis
#16
JOURNAL ARTICLE
Dalma Dojcsák, Ágnes Mária Ilosvai, László Vanyorek, Ibolya Gilányi, Csaba Oláh, László Horváth, Csaba Váradi
Glycosylation is vital for well-functioning glycoproteins and is reportedly altered in chronic inflammatory disorders, including multiple sclerosis (MS). High-throughput quantitative measurement of protein glycosylation is challenging, as glycans lack fluorophore groups and require fluorescent labeling. The attachment of fluorescent tags to each glycan moiety necessitates sample clean-up for reliable quantitation. The use of magnetic particles in glycan sample preparation is reportedly an easy-to-use solution to accomplish large-scale biomarker discovery studies...
August 13, 2022: International Journal of Molecular Sciences
https://read.qxmd.com/read/35977467/hemagglutinin-stalk-binding-antibodies-enhance-effectiveness-of-neuraminidase-inhibitors-against-influenza-via-fc-dependent-effector-functions
#17
JOURNAL ARTICLE
Ali Zhang, Hanu Chaudhari, Yonathan Agung, Michael R D'Agostino, Jann C Ang, Yona Tugg, Matthew S Miller
The conserved hemagglutinin stalk domain is an attractive target for broadly effective antibody-based therapeutics and next-generation universal influenza vaccines. Protection provided by hemagglutinin stalk-binding antibodies is principally mediated through activation of immune effector cells. Titers of stalk-binding antibodies are highly variable on an individual level and tend to increase with age as a result of increasing exposures to influenza virus. In our study, we show that stalk-binding antibodies cooperate with neuraminidase inhibitors to protect against influenza virus infection in an Fc-dependent manner...
August 16, 2022: Cell reports medicine
https://read.qxmd.com/read/35945153/improving-the-accuracy-of-modelling-co-2-electroreduction-on-copper-using-many-body-perturbation-theory
#18
JOURNAL ARTICLE
Ziyang Wei, Philippe Sautet
Copper (Cu) remains the most important metal catalyst for the carbon dioxide reduction reaction (CO2 RR) into C2 products. Due to limited evidence from in situ experiments, mechanistic studies are often performed in the framework of density functional theory (DFT), using functionals at the generalized gradient approximation (GGA) level, which have fundamental difficulties to correctly describe CO adsorption and surface stability. We employ the adiabatic connection fluctuation dissipation theorem within the random phase approximation (RPA), in combination with the linearized Poisson-Boltzmann equation to describe solvation effects, to investigate the mechanism of CO2 RR on the Cu(100) facet...
August 9, 2022: Angewandte Chemie
https://read.qxmd.com/read/35839442/fluorine-functionalized-nbo-type-cu-2-organic-framework-enhanced-catalytic-performance-on-the-cycloaddition-reaction-of-co-2-with-epoxides-and-deacetalization-knoevenagel-condensation
#19
JOURNAL ARTICLE
Hongtai Chen, Tao Zhang, Shurong Liu, Hongxiao Lv, Liming Fan, Xiutang Zhang
The high catalytic activity of metal-organic frameworks (MOFs) can be realized by increasing their effective active sites, which prompts us to perform the functionalization on selected linkers by introducing a strong Lewis basic group of fluorine. Herein, the exquisite combination of paddle-wheel [Cu2 (CO2 )4 (H2 O)] clusters and meticulously designed fluorine-funtionalized tetratopic 2',3'-difluoro-[ p -terphenyl]-3,3″,5,5″-tetracarboxylic acid (F-H4 ptta) engenders one peculiar nanocaged {Cu2 }-organic framework of {[Cu2 (F-ptta)(H2 O)2 ]·5DMF·2H2 O} n ( NUC-54 ), which features two types of nanocaged voids (9...
July 15, 2022: Inorganic Chemistry
https://read.qxmd.com/read/35785790/transformation-of-l-dopa-and-dopamine-on-the-surface-of-gold-nanoparticles-an-nmr-and-computational-study
#20
JOURNAL ARTICLE
Nikolina Kalčec, Antonio Ljulj, Lucija Božičević, Valerije Vrček, Domenico Marson, Sabrina Pricl, Frances Separovic, Ivana Vinković Vrček
Gold nanoparticles (AuNPs) have found applications in biomedicine as diagnostic tools, but extensive research efforts have been also directed toward their development as more efficient drug delivery agents. The high specific surface area of AuNPs may provide dense loading of molecules like catechols (L-DOPA and dopamine) on nanosurfaces, enabling functionalization strategies for advancing conventional therapy and diagnostic approaches of neurodegenerative diseases. Despite numerous well-described procedures in the literature for preparation of different AuNPs, possible transformation and structural changes of surface functionalization agents have not been considered thoroughly...
July 4, 2022: Inorganic Chemistry
keyword
keyword
43596
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.