Publications by authors named "Qianqian Fan"

Background: Bullying victimization remains a grave issue in early adolescence. However, existing research often lacks a longitudinal perspective and sufficient attention to protective factors, particularly the dynamic role of teacher-student relationships.

Objective: This study explores the longitudinal protective mechanisms against bullying victimization, focusing on the roles of perceived control and teacher-student relationships.

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About 60 nm SbSe nanoparticles are uniformly embedded in a porous carbon substrate to prepare a SbSe/C composite through a combination of pyrolysis reduction and solid-phase selenization. The SbSe/C anode exhibits excellent sodium storage capacity. The initial discharge capacity is up to 420 mA h g at 0.

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The utilization of chromium free tanning agents generates lots of pollutants such as chromium containing wastewater and sludge. Besides, trivalent chromium may be converted into carcinogenic hexavalent chromium under certain conditions, causing permanent harm to the human body. Therefore, the promotion of chromium free tanning technology is extremely significant.

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High-temperature carbonization typically used in the preparation of advanced electrocatalysts poses significant challenges in preserving abundant functional groups essential for reactant adsorption and component stabilization. To address this, a solvothermal synthesis followed by non-carbonization annealing approach is proposed to fabricate a series of cobalt-based organic-inorganic hybrids derived from cobalt-based glycerate nanospheres (GNs). Notably, annealing in phosphorous and inert atmospheres preserves the solid nanospherical structure, whereas treatment in sulfur-rich environments results in the formation of hollowed nanospheres.

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Structural stability of metal-organic framework (MOF) is crucial for their application, and thus it is of great significance to construct MOFs with controllable structural stability. Herein, a strategy based on adjusting the electronic environment of ligands to regulate the structure stability of MOF is proposed. Briefly, a novel Zr-MOF (Zr-TA) with hydroxyl groups is synthesized.

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Sb nanoparticles (∼50 nm) are embedded uniformly on the surface of carbon fibers (Sb NPs-SCFs) without scattered Sb NPs. The Sb NPs-CNFs anode exhibits excellent sodium storage, delivering a second cycle discharge capacity of 455.7 mA h g at 1.

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To solve large volume change and low conductivity of BiS-based anodes, a coordination regulation strategy is proposed to prepare BiS nanoparticles dispersed in carbon fiber (BiS@CNF) composites. It has been discovered that introducing trimesic acid as a ligand can significantly improve the loading and dispersion of Bi in polyacrylonitrile fibers. The results exhibit that BiS nanoparticles of 200-300 nm are uniformly anchored on the superficial surface layer of CNFs, and BiS nanoparticles of about 20 nm are evenly dispersed in the interior of CNFs.

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Article Synopsis
  • - The study investigated the effects of hyperbaric oxygen (HBO) therapy on cognitive deficits and the autophagic pathway in mice with Alzheimer's disease, focusing on the comparison of two different mouse groups receiving treatment.
  • - Results showed that HBO therapy improved behavior in treated mice, evidenced by decreased escape latency and increased time spent in target areas during a maze test, alongside changes in amyloid-beta and autophagy markers in brain tissues.
  • - Mice receiving HBO therapy had lower levels of harmful amyloid-beta and higher autophagy-related proteins, indicating a potential beneficial effect of HBO in modifying disease processes related to Alzheimer's.
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Simultaneously dispersing phosphide crystallites and multiple heteroatoms in hollow carbon is a significant yet challenging task for achieving high-performance oxygen electrocatalysts of zinc-air batteries. Herein, a simple wrapping-pyrolysis strategy is proposed to prepare CoP/CoP embedded in N, P, S triply-doped hollow carbon (CoP/CoP@NPS-HC). CoP/CoP@NPS-HC composite features hollow polyhedral structure populated with numerous catalytically active CoP/CoP nanoparticles and N, P, S heteroatoms.

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Background: Hypoxic-ischemic brain damage (HIBD) is a prevalent brain injury with high mortality and morbidity. It results from hypoxia and ischemia of the brain due to various perinatal factors. A previous study showed that knockdown of programmed cell death factor 4 (PDCD4) could reduce infarction injury resulting from ischemia/reperfusion injury.

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Rechargeable lithium metal batteries (LMBs) are promising next-generation energy storage systems due to their high theoretical energy density. However, their practical applications are hindered by lithium dendrite growth and various intricate issues associated with the cathodes. These challenges can be mitigated by using organosulfur-based mediators (OSMs), which offer the advantages of abundance, tailorable structures, and unique functional adaptability.

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The study investigated the willingness for vaccine uptake during the COVID-19 pandemic (April-June 2021), and explored the effect of both mindfulness and health education in managing negative affect post-vaccination. In study 1, a sample of 468 Chinese college students completed a one-time survey, assessing loneliness, stress, medical fear, and vaccination likelihood. Results showed that medical fear mediated the relationship between loneliness, stress and vaccination likelihood.

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Purpose: This study aimed to evaluate the protective effects of gentiopicroside against lipopolysaccharide-induced chondrocyte inflammation.

Methods: SW 1353 chondrosarcoma cells were stimulated with LPS (5 μg/ml) for 24 h and treated with different concentrations of gentiopicroside (GPS) for 24 h. The toxic effects of GPS on chondrocytes were determined using a CCK-8 assay and EdU staining.

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Positive effects of ultraviolet-C (UV-C) radiation on plants have been documented in previous literature with a focus on extending shelf life and reducing disease development. However, its effect on plant growth habits has been scarcely explored, especially in turfgrass where a compact shoot growth is a desirable trait. Seashore paspalum (Paspalum vaginatum) is a warm-season perennial turfgrass requiring low fertilizer and pesticide inputs.

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Article Synopsis
  • - A history of SARS-CoV-2 infection increases the risk of postoperative pulmonary complications (PPCs), leading to higher mortality, ICU admissions, and longer hospital stays, highlighting the need for strategies to manage these risks
  • - The study hypothesizes that inhaling nitric oxide (NO) during the perioperative period can reduce PPCs in patients recently infected with SARS-CoV-2 by leveraging its vasodilatory and antiviral properties
  • - Proposed as a double-blind, randomized controlled trial, the study will track PPCs in surgical patients within 7 days post-operation, with ethics approval from Xijing Hospital’s Institutional Review Board
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Mixing fillers featured with wide band gaps in polymers can effectively meet the requirement of higher energy storage densities. However, the fundamental relationship between the crystal structures of fillers and the dielectric properties of the corresponding nanocomposites is still unclear. Accordingly, we introduced ultralow contents of the synthesized cubic Hafnium dioxide (c-HfO) or monoclinic Hafnium dioxide (m-HfO) as deep traps into poly(ether imide) (PEI) to explore their effects on dielectric properties and the charge-blocking mechanism.

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The rising prevalence of global antibiotic resistance evokes the urgent need for novel antimicrobial candidates. Cationic lipopeptides have attracted much attention due to their strong antimicrobial activity, broad-spectrum and low resistance tendency. Herein, a library of fluoro-lipopeptide amphiphiles was synthesized by tagging a series of cationic oligopeptides with a fluoroalkyl tail via a disulfide spacer.

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Iron dysregulation is a crucial factor in the development of neurological diseases, leading to the accumulation of reactive oxygen species (ROS) and oxidative stress, triggering inflammatory responses, and ultimately causing neurological impairment. Pachymic acid (PA) is an active ingredient extracted from the medicinal fungus Poria cocos, which has been reported with multiple pharmacological effects, including anti-inflammatory, anti-ischemia/reperfusion, and anticancer actions. In this study, we test whether PA have neuroprotection effect aganist ferrous ions induced toxicity in SH-SY5Y cells.

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Background: Platelet count is associated with cardiovascular risk and mortality in several cardiovascular diseases, but the association of the nadir platelet counts post-septal myectomy with the cardiovascular complication risk in hypertrophic obstructive cardiomyopathy patients remains unclear.

Methods: This retrospective cohort study reviewed all adult patients who underwent septal myectomy at a single tertiary referral center over a 5-year period. Postoperative nadir platelet count was defined as the lowest platelet count in the first 4 postoperative days or until hospital discharge.

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Background: Children with unilateral spastic cerebral palsy (USCP) have muscle hypertonia, balance, and coordination defects that affect gross motor skills, especially walking. Understanding the gait characteristics and lower limb muscle activation patterns of USCP children can provide an objective and quantitative basis for patient assessment and treatment plan formulation.

Objective: This study compared the gait and lower limb muscle activation characteristics of children with USCP and with typical development (TD) during walking.

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Persistent inflammation and associated pain significantly impact individuals' quality of life, posing substantial healthcare challenges. Proinflammatory cytokines, released by activated macrophages, play crucial roles in the development of chronic inflammatory conditions such as rheumatoid arthritis. To identify and evaluate potential therapeutic interventions targeting this process for mitigating inflammation and pain, we created myeloid cell-specific knockout of (vesicle-associated membrane protein 3) mice ( ) by crossing mice with newly engineered mice.

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This study aims to propose and evaluate DR-CycleGAN, a disentangled unsupervised network by introducing a novel content-consistency loss, for removing arterial-phase motion artifacts in gadoxetic acid-enhanced liver MRI examinations. From June 2020 to July 2021, gadoxetic acid-enhanced liver MRI data were retrospectively collected in this center to establish training and testing datasets. Motion artifacts were semi-quantitatively assessed using a five-point Likert scale (1 = no artifact, 2 = mild, 3 = moderate, 4 = severe, and 5 = non-diagnostic) and quantitatively evaluated using the structural similarity index (SSIM) and peak signal-to-noise ratio (PSNR).

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Objective: To explore the effects of trunk training using motor imagery on trunk control and balance function in patients with stroke.

Methods: One hundred eligible stroke patients were randomly divided into a control group and trial group. The control group was given routine rehabilitation therapy, while the trial group was given routine rehabilitation therapy and trunk training using motor imagery.

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