33 results match your criteria: "Aviation University of Air Force[Affiliation]"

Background: The present study aims to investigate the potential impact of eight sessions of Multiple Object Tracking (MOT) training on the executive function in basketball players. The purpose of the study was primarily to observe the effects of MOT training with and without feedback on the executive function of basketball players.

Methods: A sample of fifty-eight participants was selected from college students enrolled in a university basketball special selection class.

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Rapid identification of flight actions by utilizing flight data is more realistic so the quality of flight training can be objectively assessed. The bidirectional long short-term memory (bi-LSTM) algorithm is implemented to forecast the flight actions of aircraft. The dataset containing the flight actions is structured by collecting tagged flight data when real flight training is exercised.

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The emergence of segmented mirrors is expected to solve the design, processing, manufacturing, testing, and launching of space telescopes of large apertures. However, with the increase in the number of sub-mirrors, the sensing and correction of co-phase errors in segmented mirrors will be very difficult. In this paper, an independent three-dimensional method for sub-mirror co-phase error sensing and correction method is proposed.

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In recent years, the silicon-based optical phased array has been widely used in the field of light detection and ranging (LIDAR) due to its great solid-state steering ability. At the same time, the optical phased array transceiver integration scheme provides a feasible solution for low-cost information exchange of small devices in the future. Based on this, this paper designs a two-dimensional optical phased array transceiver with high efficiency and a large field of view, which can realize a dense array with antenna spacing of 5.

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A High-Performance UVA Photodetector Based on Polycrystalline Perovskite MAPbCl/TiO Nanorods Heterojunctions.

Sensors (Basel)

July 2023

College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.

The application of TiO nanorods in the field of ultraviolet (UV) photodetectors is hindered by a high dark current, which is attributed to crystal surface defects and intrinsic excitation by carrier thermal diffusion. Here, a photodetector based on polycrystalline perovskite MAPbCl/TiO nanorods heterojunctions has been fabricated to overcome the shortcoming. The structure was composed of horizontal MAPbCl polycrystalline and vertically aligned TiO nanorods array.

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The mechanism of metformin combined with total flavonoids of Rhizoma Drynariae on ovariectomy-induced osteoporotic rats.

Biomed Pharmacother

September 2023

Department of Regenerative Medical Science, School of Pharmaceutical Sciences, Jilin University, Changchun 130021, People's Republic of China. Electronic address:

The present study evaluated the in vitro effect of metformin (Met) and total flavonoids of Rhizoma Drynariae (TFRD) on osteoclasts, osteocytes, and osteoblasts at different stages. We also assessed the effect and mechanism of treatment with Met combined with TFRD on ovariectomy (OVX)-induced osteoporosis in rats. The results showed that Met combined with TFRD significantly promoted the migration of osteoprogenitor cells and stimulated the differentiation and maturation of osteoblast precursor cells.

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Background: The research has indicated that elite football players demonstrate cognitive advantages in visual working memory capacity (VWMC); however, it remains unclear whether this effect transfers to other domains cognitive advantages.

Object: This study investigated the VWMC differences between elite football players and novices, with a particular focus on cognitive advantages.

Methods: Elite football players (specialized in football) and novices were selected to complete the VWMC test task under three different stimulus conditions, then the differences in the VWMCs of elite football players and novices were analyzed.

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Background: Different doses of high-intensity interval training (HIIT) may affect individuals' executive functions (EF). In this study, low-dose HIIT and moderate-dose HIIT were used to explore different doses of HIIT in terms of the impact on the EF of college students.

Methods: All the participants were randomly divided into three groups.

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We aimed to identify the immune and Toll-like receptor (TLR) signaling pathway related feature lncRNAs to construct the diagnostic nomograms for acute ischemic stroke (AIS). Two AIS-associated expression profiles GSE16561 and GSE22255 were downloaded from NCBI Gene Expression Omnibus, the former was the training set and the latter was the validation set. The differential expression genes (DEGs) and lncRNAs (DElncRNAs) related to TLR signaling pathway were identified between AIS and control groups.

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Background: Approximately 94% of sensory information acquired by humans originates from the visual and auditory channels. Such information can be temporarily stored and processed in working memory, but this system has limited capacity. Working memory plays an important role in higher cognitive functions and is controlled by central executive function.

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How are patterned movements stored in working memory?

Front Psychol

February 2023

Department of Military Medical Psychology, Air Force Medical University, Xi'an, China.

Introduction: In this study, the change detection paradigm was used to study the working memory of patterned movements and the relationship of this type of memory with the visuospatial sketchpad in three experiments.

Methods: Experiment 1 measured participants' working memory capacity for patterned movements and explored the influence of stimulus type with indicators such as response time and accuracy rate. Experiments 2 and 3 explored the relationship between patterned movements and the visual and spatial subsystems, respectively.

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Objective: This study aimed to examine the impact of sleep quality on occupational well-being in employees by primarily focusing on the mediating role of occupational self-efficacy.

Methods: A total of 487 junior staff completed a set of questionnaires comprised Pittsburgh Sleep Quality Index scale, Occupational Self-efficacy Scale, and occupational well-being measurements.

Results: The results revealed that both sleep quality and occupational self-efficacy were significantly correlated with occupational well-being.

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The aim of this paper is to propose a scientific and practical evaluation method for college students' learning evaluation. The students' learning experience and harvest are the ultimate embodiment of colleges teaching quality. Considering the multilevel and fuzzy characteristics of learning evaluation, a novel college evaluation method is put forward based on the analytic hierarchy process and fuzzy comprehensive evaluation.

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In the COVID-19 epidemic the mildly symptomatic and asymptomatic infections generate a substantial portion of virus spread; these undetected individuals make it difficult to assess the effectiveness of preventive measures as most epidemic prevention strategies are based on the detected data. Effectively identifying the undetected infections in local transmission will be of great help in COVID-19 control. In this work, we propose an RNA virus transmission network representation model based on graph attention networks (RVTR); this model is constructed using the principle of natural language processing to learn the information of gene sequence and using a graph attention network to catch the topological character of COVID-19 transmission networks.

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Pressure-stabilized polymerization of nitrogen in manganese nitrides at ambient and high pressures.

Phys Chem Chem Phys

March 2022

State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China.

Two stable high-pressure phases (2/-MnN and 1̄-MnN) and four metastable phases (4/-MnN, 1̄-MnN, 2/-MnN and 1̄-MnN) are proposed by using evolutionary simulations. Besides the reported quasi-diatomic molecule N, the armchair chain and S-like chain, the N ring and N ring are firstly reported in the 4/-MnN and 1̄-MnN phases. A detailed study is performed on the energetic properties, mechanical properties and stability of these polynitrogen structures.

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With the rapid development of computer technology and network technology and the widespread popularity of electronic equipment, communication among people is more dependent on the Internet. The Internet has brought great convenience to people's lives and work, and the Internet data is constantly being recorded. People's data information and behavior information, which provides the basis for data mining and recommendation systems, mining users' information and behaviors, and providing "user portraits" for each user, can provide better services to users and it is also an important part of the recommendation system.

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The rapid development of computer network technology in today's society has also brought new opportunities for the transformation of the teaching management mode of colleges and universities. Nowadays, most colleges and universities are gradually improving the construction of campus informatization projects, further integrating school teaching resources, centralizing the work related to the work process, and carrying out platform management to improve the daily work efficiency of various departments of the school, which is also prominent from the user experience. Humanized management out of school.

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This paper establishes a hybrid education teaching practice quality evaluation system in colleges and constructs a hybrid teaching quality evaluation model based on a deep belief network. Karl Pearson correlation coefficient and root mean square error (RMSE) indicators are used to measure the closeness and fluctuation between the effective online teaching quality evaluation results evaluated by this method and the actual teaching quality results. The experimental results show the following: (1) As the number of iterations increases, the fitting error of the DBN model decreases significantly.

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Following the publication of this paper, it was drawn to the Editors' attention by a concerned reader that certain of the western blot assay data shown in Figs. 1C and 6A were strikingly similar to data appearing in different form in another article written by different authors. Owing to the fact that the contentious data in the above article were already under consideration for publication prior to its submission to , the Editor has decided that this paper should be retracted from the Journal.

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Ensemble Learning Based on Policy Optimization Neural Networks for Capability Assessment.

Sensors (Basel)

August 2021

School of Computer Science, Jilin University, No. 2699, Qianjing Rd., Changchun 130012, China.

Capability assessment plays a crucial role in the demonstration and construction of equipment. To improve the accuracy and stability of capability assessment, we study the neural network learning algorithms in the field of capability assessment and index sensitivity. Aiming at the problem of overfitting and parameter optimization in neural network learning, the paper proposes an improved machine learning algorithm-the Ensemble Learning Based on Policy Optimization Neural Networks (ELPONN) with the policy optimization and ensemble learning.

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Cobalt-Nitrogen Compounds at High Pressure.

Inorg Chem

September 2021

State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, P.R. China.

The high-pressure phase diagram of Co-N compounds is enriched by proposing five stable phases (-CoN, 2-CoN, -CoN, -CoN, and 1̅-CoN) and two metastable phases (3̅1-CoN and 1̅-CoN). A systematic study has been performed for revealing the novel polymeric nitrogen structure and the outstanding properties of predicted polynitrides, such as structural characterization, energy analysis, stability analysis, and electronic analysis. 3̅1-CoN with the novel layer-shaped N-structure and 1̅-CoN with the novel band-shaped N-structure are first reported in this work.

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The aim of the present study was to investigate the application of propofol combined with sevoflurane anesthesia in associating liver partition and portal vein ligation for staged hepatectomy (ALPPS). A retrospective analysis of 40 patients with liver cancer who underwent ALPPS was performed. The study included 21 (control group) and 19 (observation group) patients who were administered propofol anesthesia and propofol in combination with sevoflurane anesthesia, respectively.

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New Cadmium-Nitrogen Compounds at High Pressures.

Inorg Chem

May 2021

State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, P.R. China.

A systematic high-pressure study of the CdN ( = 2, 3, 4, 5, and 6) system is performed by using the first-principles calculation method in combination with the particle swarm optimization algorithm. We proposed four stable high-pressure phases (4-CdN, -CdN, 4̅2-CdN, and 2/-CdN) and one metastable high-pressure phase (2/-CdN), for which the structural frames are composed of a diatomic quasi-molecule N, standard armchair N-chain, S-type bent armchair N-chain, zigzag-antizigzag N-chain, and N network structure. Among them, the novel zigzag-antizigzag N-chain and N network structure are reported for the first time.

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Ketamine Inhibits Ovarian Cancer Cell Growth by Regulating the lncRNA-PVT1/EZH2/p57 Axis.

Front Genet

March 2021

Department of Endocrinology, China-Japan Union Hospital, Jilin University, Changchun, China.

Ketamine is widely used for cancer pain treatment in clinic, and has been shown to inhibit various tumor cells growth. However, the effect of ketamine on ovarian cancer cells growth and the downstream molecules has not been defined. In the present study, we found that ketamine significantly inhibited the proliferation and survival of six ovarian cancer cell lines.

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