66,390 Result(s)
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Article
Understanding and Treating Dual Diagnosis: Double the Trouble
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Article
Quantitative CT lumbar spine BMD cutpoint value for classifying osteoporosis among older East Asian women should be lower than the value for Caucasians
For Caucasian women, the QCT (quantitative CT) lumbar spine (LS) bone mineral density (BMD) cutpoint value for classifying osteoporosis is 80 mg/ml. At the age of approximate 78 years, US Caucasian women QCT L...
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Article
miR-221-3p is upregulated in acute pulmonary embolism complicated with pulmonary hypertension and promotes pulmonary arterial smooth muscle cells proliferation and migration by inhibiting PTEN
Pulmonary arterial smooth muscle cells (PASMCs) functions are associated with the pathogenesis of pulmonary hypertension (PH) which is a life-threatening complication of acute pulmonary embolism (APE). This st...
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Article
Mineral Prospectivity Prediction Based on Self-Supervised Contrastive Learning and Geochemical Data: A Case Study of the Gold Deposit in the Malanyu District, Hebei Province, China
Data-driven prospectivity modeling based on deep learning, particularly supervised learning, has demonstrated outstanding performance for mineral exploration targeting in the past years, thanks to its powerful...
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Article
Analysis of mobility patterns for urban taxi ridership: the role of the built environment
Understanding mobility patterns of taxi ridership is important for transport planning. However, there is still room for a thorough understanding of the role of the built environment for taxi ridership across d...
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Distributed algorithm for solving variational inequalities over time-varying unbalanced digraphs
In this paper, we study a distributed model to cooperatively compute variational inequalities over time-varying directed graphs. Here, each agent has access to a part of the full map** and holds a local view...
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Multiple prizes for multiple tasks: externalities and the optimal design of tournaments
This paper studies a multi-task tournament in which each agent undertakes two tasks. Agents’ efforts on one of the tasks create externalities on the performances of other competing agents. We discuss the desig...
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Article
Microbial community structure of an anaerobic side-stream coupled anoxic–aerobic membrane bioreactor (AOMBR–ASSR) for an in-situ sludge reduction process
With the anoxic–aerobic membrane bioreactor (AO-MBR, CP) as a reference, high-throughput sequencing technology was used to reveal the characteristics of the microbial community structure in the anaerobic side-...
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Chronic Fluoride Exposure Induces Ovarian Dysfunction and Potential Association with Premature Ovarian Failure in Female Rats
Chronic fluorosis has been widely investigated for its adverse effects on skeletal and neurological health; however, its impact on reproductive health, especially in females, remains underexplored. In this stu...
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Article
Causal relationships between peripheral immune cells and Alzheimer’s disease: a two-sample Mendelian randomization study
Previous research suggests that peripheral immune cells may play a role in the development of Alzheimer's disease (AD). Our study aims to determine if the composition of peripheral immune cells directly contri...
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Article
Open AccessHuman umbilical cord mesenchymal stem cells improve uterine incision healing after cesarean delivery in rats by modulating the TGF-β/Smad signaling pathway
Although human umbilical cord-derived mesenchymal stem cells (HU-MSCs) have attracted increasing attention because of their pivotal functions in the process of wound healing, the underlying molecular mechanism...
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Article
Non-contrast-enhanced MR angiography of left gastric vein in patients with gastroesophageal varices: morphology and blood supply analysis
To investigate the feasibility of non-contrast-enhanced MR angiography (NCE-MRA) in evaluating the morphology and blood supply of left gastric vein (LGV) in patients with gastroesophageal varices.
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Article
Synthesis of High-Performance YAG:Ce Phosphor Powder with Low Sintering Temperature and YAG:Ce-Doped Bi-B Glass by a One-Step Method
Ce-doped yttrium aluminum garnet (Ce:YAG) phosphor powder was synthesized with a precursor reaction at room temperature. The YAG phase appeared after sintering the precursor powder at 800°C, and the intermedia...
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Article
Simulation Study on the Mechanical Behavior of Copper–Silver Alloy with Twinning-Induced Gradient Segregation
This study employed molecular dynamics (MD) simulation to investigate the mechanical behavior of copper–silver (Cu–Ag) nanocrystalline alloys with twinning structures under solute gradient polarization conditi...
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Preparation of three-dimensional nanoporous copper foil with high specific surface area
The porous copper foil material has the advantages of ultra-light and ultra-thin, and can prevent dangers such as thermal runaway and battery fire, which could be regarded as a prospective material for lithium...
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Clean and Efficient Recovery of Valuable Metals from Bismuth Sulfide Concentrate by Low-Temperature Alkaline Smelting
The traditional bismuth sulfide concentrate smelting process had the problems of low direct recovery rate of metallic bismuth, low extraction rate of associated valuable metal elements, and SO2 flue gas pollution...
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Article
Calibration method of spectroradiometer based on direct solar irradiance
The scattering channel of a spectroradiometer, as a commonly used optical parameter measuring device, can measure irradiance in all directions of the sky. To improve the calibration accuracy and efficiency, th...
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Correction to: Some inequalities for k-colored partition functions
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Study on the Effect of Preheating Temperature on Residual Stress in Laser Arc Composite Welding of Dissimilar Aluminum Alloys
This study, based on the Simufact Welding analysis software, established a three-dimensional finite element computational model according to actual welding conditions. Using a combined volumetric heat source, ...
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Article
Open AccessTetrahydropyran synthesis mediated by catalytic triflic acid and hexafluoroisopropanol
A Brønsted acid-catalyzed regioselective intramolecular hydroalkoxylation is described. This reaction proceeds via a carbocation intermediate and enables the preparation of 1,1,1’-trisubstituted tetrahydropyra...