bluuebunny/crossref_metadata_2025 huggingface dataset:
Dynamics of dipolar quantum droplets in an extended Gross–Pitaevskii equation in the presence of time-dependent harmonic trapping potential and a damping term
Authors: Alouini Brahim , Hajaiej Hichem
Published: June 2022

The purpose of this paper is to study the dynamics of solutions to an extended Gross–Pitaevskii equation that models the formation of droplets in a dipolar Bose–Einstein condensate (BEC). The formation of these droplets has been recently discovered by driving the BEC into the strongly dipolar regime. Surprisingly, instead of collapsing, the system formed stable droplets. So far, no rigorous mathematical explanation has been proved. To the best of our knowledge, only experimental results have been obtained. The goal of this paper is to validate this breakthrough discovery. Many predictions/ conjectures properties of these droplets have been stated by some research groups in physics and engineering. In particular, it has been claimed that the stability of these droplets is a consequence of the presence of the damping term in the extended Gross–Pitaevskii equation under study. This term describes the three-body loss process. To accurately model the dynamics of formation of these droplets, it is necessary to consider a time-dependent harmonic trapping potential as well as other terms with different types of nonlinearity among them that describe the Lee–Huang–Yang (LHY). This presents some challenges that will be solved in this paper.
A Relative Information Gain-based Query Performance Prediction Framework with Generated Query Variants
Authors: Datta Suchana , Ganguly Debasis , Mitra Mandar , Greene Derek
Published: June 2022

Query performance prediction (QPP) methods, which aim to predict the performance of a query, often rely on evidences in the form of different characteristic patterns in the distribution of Retrieval Status Values (RSVs). However, for neural IR models, it is usually observed that the RSVs are often less reliable for QPP because they are bounded within short intervals, different from the situation for statistical models. To address this limitation, we propose a model-agnostic QPP framework that gathers additional evidences by leveraging information from the characteristic patterns of RSV distributions computed over a set ofautomatically generatedquery variants, relative to that of the current query. Specifically, the idea behind our proposed method—Weighted Relative Information Gain (WRIG), is that a substantial relative decrease or increase in the standard deviation of the RSVs of the query variants is likely to be a relative indicator of how easy or difficult the original query is. To cater for the absence of human-annotated query variants in real-world scenarios, we further propose an automatic query variant generation method. This can produce variants in a controlled manner by substituting terms from the original query with new ones sampled from a weighted distribution, constructed either via a relevance model or with the help of an embedded representation of query terms. Our experiments on the TREC-Robust, ClueWeb09B, and MS MARCO datasets show that WRIG, by the use of this relative changes in QPP estimate, leads to significantly better results than a state-of-the-art baseline method that leverages information from (manually created) query variants by the application of additive smoothing [64]. The results also show that our approach can improve the QPP effectiveness of neural retrieval approaches in particular.
An Innovative Approach to Produce Magnetite Nanoparticles Synthesized by a Combined Electrochemical and Chemical Coprecipitation Method and their Electrochemical Monitoring
Authors: Sainz-Rosales Abraham , Pedraza-Herrera Leonardo D. , Cano M. E. , Casillas N. , Bárcena-Soto Maximiliano , Larios-Durán Erika Roxana
Published: June 2022

The synthesis of magnetite nanoparticles (

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e

3

O

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NPs) remains an interesting topic for the electrochemistry community. However, currently, there is still some lack of information related to their production. For instance, the basic reaction stages involved in electrochemical synthesis and their dependence on the oxygen concentration, the optimal polarization potential and the current density applied are parameters that should be agreed upon. In this work, a simple and innovative approach is presented not only to efficiently produce

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NPs but also their side products in a selective manner by controlling the dissolved oxygen in the reaction media. The approach includes a two-step methodology. First,

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(
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)

2

is electrochemically produced. As a second step, the production of magnetite nanoparticles is carried out through a purely chemical method with different amounts of atmospheric oxygen, as oxidizing agent. Thus, it is demonstrated that the

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NPs are produced by chemical reactions rather than by an electrochemical process. Furthermore, through the acquisition of both open circuit potential and pH values as a function of time, it is possible to determine the optimal parameters, i.e., dissolved atmospheric oxygen and pH of the media, to selectively obtain not only

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NP but also byside products such as hematite, maghemite, akageneite and lepidocrocite.
A Green Electrochemical Method for the Synthesis of New Sulfonamide and Disulfonamide Derivatives Based on the Oxidation of Phenylhydrazine Derivatives and Evaluation of their Antibacterial Activity
Authors: Arkwazee Heydar Hameed Salman , Mohamadighader Niloofar , Nematollahi Davood , Rabiee Arash , Alizadeh Hojjat
Published: June 2022

Electrochemical synthesis of some new sulfonamide and disulfonamide derivatives was carried out via the air-assisted electrochemical oxidation of phenylhydrazine (PhD) and 4-hydrazineylbenzenesulfonamide (HBS) derivatives in the presence of arylsulfinic acids (AS1–AS3), respectively. The results indicated that electrochemically generated phenyldiazene (PDZ) participated in Michael type reaction with arylsulfinic acids and were converted to the corresponding sulfonamide derivatives. In this paper is described the preparation of some new sulfonamide derivatives (P1–P5) in high yields in aqueous/ethanol mixture, under constant current conditions, without toxic reagents at a carbon electrode using an environmentally friendly method. Also, antibacterial tests indicated that the products showed good antibacterial performance against both gram-positive and gram-negative bacteria.
Comprehensive Characterization of Multi-Phase Sulfurized Polyacrylonitrile Cathodes for Lithium-Sulfur Batteries
Authors: Langrud Strauss , Razzaq Amir Abdul , Santhanagopalan Shriram , Brow Ryan , Xing Weibing
Published: June 2022

Sulfurized polyacrylonitrile (SPAN) is considered one of the most promising cathode materials to overcome the operational challenges that plague lithium-sulfur (Li-S) batteries. However, material properties and electrochemical performance implications of SPAN prepared under different synthesis conditions are not yet fully investigated. In this study, we show the impacts of different synthesis conditions on the formation of sulfur to PAN bonds and redox reaction mechanisms of multi-phase SPAN via comprehensive material and electrochemical characterizations. In-situ Raman analysis was first applied to study the multi-phase SPAN-based Li-S cells. We found that both elemental sulfur and chemically bonded sulfur are present under the synthesis condition of 300 °C/3 h along with unreacted PAN. The incompletely sulfurized, multi-phase SPAN exhibited an unusually rapid capacity degradation in the resultant Li-S cells, which is attributed to polysulfide formation and continuously growing interfacial impedance in the Li-S cells. On the other hand, SPAN samples prepared under the synthesis condition of 350 °C/3 h are found completely sulfurized with chemically bonded sulfur to the PAN backbone without the presence of free elemental sulfur. Complete sulfurization of SPAN led to exceptionally stable cycle performance due to excellent reversible redox processes of chemically bonded sulfur with Li+ in the Li-S cells.
A 3-D virtual human model for simulating heat and cold stress
Authors: Gulati Tushar , Hatwar Rajeev , Unnikrishnan Ginu , Rubio Jose E. , Reifman Jaques
Published: June 2022

This work provides a new, unified modeling framework to accurately predict the human body’s thermal response to both heat and cold stress caused by environmental conditions and exertional physical activity in one mathematical model. We show that this 3-D anatomically detailed model accurately predicts the spatiotemporal temperature distribution in the body under extreme conditions for exposures to air and water and could be used to help design medical interventions and countermeasures to prevent injuries.
A Short Overview on Recent Progress in Semiconductor Quantum Dot‐Sensitized Solar Cells
Authors: Jun Hieng Kiat , Tung Ha Thanh
Published: June 2022

The past few years have been great years for semiconductor quantum dot‐sensitized solar cells (QDSSCs). For the first time, efficiency exceeding 15% has been reported. This has narrowed the gap with other emerging solar cell technologies such as dye‐sensitized solar cells and thin film solar cells. In this miniperspective, the reason for such improvement is briefly reviewed. Few advancements have been identified that are responsible for the performance breakthrough in QDSSCs. These included better performance of sensitizer materials used, the use of doping agents, and surface passivation strategy.
Efficacy and Safety of Clinacanthus nutans Lindau Cream vs. Podophyllin for the Treatment of Adults with Condyloma Acuminata
Authors: Jiamton Sukhum , Chanyachailert Pattriya , Nanchaipruek Yanisorn , Jantanapornchai Nuttagarn , Patthamalai Poramin , Limphoka Pichaya , Nokdhes Ya-Nin , Jantaravinid Jiraporn
Published: June 2022

Human papillomavirus (HPV) infection causes condyloma acuminata (CA). Podophyllin is the standard treatment. Clinacanthus nutans Lindau (C. nutans), a medicinal plant, has potent anti-inflammatory and antiviral effects. C. nutans cream is widely used in Thailand to treat the herpes simplex virus. We proposed that C. nutans might also induce CA clearance. There are no studies of C. nutans treatment of CA. This randomized controlled trial at Siriraj Hospital, Thailand, was conducted between January 2018 and December 2019. CA samples were obtained from 10 men with at least two CAs 1 centimeter apart. Each wart was randomized to a 4-week treatment with either C. nutans or podophyllin. The participants were 24 to 72 years old. Most HPV types were low-risk HPVs (HPV 11, HPV 6). Median CA clearance with podophyllin was a 97% CA clearance with podophyllin and 82% with C. nutans. C. nutans may be an alternative treatment for CA.
The Application of Speech Synthesis Technology Based on Deep Neural Network in Intelligent Broadcasting
Authors: Yang Jihong
Published: June 2022

To improve the sound quality of speech synthesis technology in intelligent broadcasting, a deep neural network-based method is proposed. It also proved the effectiveness of the DNN discrimination s/u/v and completed the conversion of the HMM synthesis spectrum parameter to original speech. Further, the scheme for transforming the parameters obtained from the temporary decomposition (TD) algorithm, DNN trains the event vectors obtained from TD decomposition, establishes the transformation model, and recombines with the untransformed event function. Experiments proved that the conversion effect of 16 dimensional parameters is not very ideal in subjective evaluation due to the fact that too few dimensions lead to insufficient spectral details, and the distortion in the process of further synthesis; the parameter conversion of 48 dimensions is slightly better than 16 dimensions, mainly due to more spectral details, but on the other hand, the influence of codebook mapping also affects the sound instability to some extent. It proves that the intelligent voice broadcast system completely solves these problems, which not only reduces construction costs, but also improves service efficiency.
Application Analysis of 5G Intelligent Communication Technologies in the Field of Sports Distance Education
Authors: Zhang Yuanfeng , Majed
Published: June 2022

China has entered a new fifth-generation (5G) technological period, college students are relatively fast to absorb new things, and conventional teaching methods are incapable of properly stimulating students’ interest in sporting activities. As a result, the 5G integrated teaching paradigm, which is based on communication technology, is an unavoidable reform of sports remote education. For a long time, technology and sports have been inextricably linked. However, new possibilities on the Internet are fast developing, resulting in massive volumes of data. In this paper, we propose a novel 5G framework for efficient sports distance education. Initially, the sports dataset is preprocessed using normalization, and the features are extracted using Principal Component Analysis (PCA). Following feature selection, a Hierarchical Multiscale Convolutional Neural Network (HM-CNN) is used to categorize and initialize the 5G utilizing the Enhanced Transfer Control Protocol (E-TCP) for efficient data transmission. The Elevated Ant Colony Optimization Algorithm improves the performance of the suggested system even more (EACO). The experimental results indicate that 5G integrated education reform based on communication technology may successfully enhance the number of college students’ sports population.
Comparative Efficacy of Routine Physical Therapy with and without Neuromobilization in the Treatment of Patients with Mild to Moderate Carpal Tunnel Syndrome
Authors: Ijaz Muhammad Junaid , Karimi Hossein , Ahmad Ashfaq , Gillani Syed Amer , Anwar Naveed , Chaudhary Muhammad Asad
Published: June 2022

Study Design. Prospective randomized clinical trial. The trial is registered in the Chinese registry of clinical trials with a trial number of ChiCTR1800019908. Background. Median nerve mobilization is a relatively new technique that can be used to treat carpal tunnel syndrome. But literature about additional effects of neuromobilization for the management of carpal tunnel syndrome is scarce. Objective. To examine and compare the role of median nerve neuromobilization at the wrist as compared to routine physical therapy in improving pain numeric pain rating scale (NPRS), range of motion (Ballestero‐Pérez et al., 2017), muscle strength, and functional status. Methods. A sample size of 66 patients was recruited using convenient sampling and distributed randomly in two groups. After assessing both groups using ROM, manual muscle strength, pain at NPRS, and functional status on the Boston Carpal Tunnel Syndrome Questionnaire (BCTQ), which consists of two further scales (the symptom severity scale (SSS) and the functional status scale (FSS)), Group 1 received conservative treatment including ultrasound therapy two days a week for six weeks, using a pulsed mode 0.8 W/cm2 and frequency 1 MHz, wrist splinting, and tendon gliding exercises, while Group 2 received both conservative treatments including ultrasound, splinting, and tendon gliding exercises as well as a neuromobilization technique. Treatment was given for 6 weeks, 2 sessions/week, and patients were reassessed at the end of the 3rd and 6th weeks. Results. Although both groups improved significantly in terms of all the outcome measures used, the neuromobilization groups showed a statistically more significant increase in flexion, extension, decrease in pain, decrease in SSS, decrease in FSS, and BCTQ as compared to the routine physical therapy group. Conclusions. The addition of neuromobilization in the rehabilitation program of carpal tunnel syndrome has better effects on treatment outcomes.
Phenolic Compounds and Antioxidant Activity of Rice–Tartary Buckwheat Composite as Affected by In Vitro Digestion
Authors: Li Nuo , Zhang Guifang , Zhang Dongjie
Published: June 2022

The present study aimed to evaluate the phenolic compounds and antioxidant activity of rice–tartary buckwheat composite (RTBC) as affected by in vitro digestion to explore the structure-activity relationship of the release of total phenolic content (TPC) and total flavonoid content (TFC) with the antioxidant activity of RTBC during in vitro oral, gastric, and intestinal digestion stages. The release of TPC and TFC from RTBC increased significantly after in vitro digestion (

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), and the change of antioxidant activity was consistent with that of TPC and TFC. Compared with the initial stage of digestion, the antioxidant activity of RTBC was increased after digestion (

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), and there was a strong correlation between antioxidant activity and the release of TPC and TFC (0.954 < R < 0.997;

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<
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). The phenolic compounds released in the oral, gastric, and intestinal digestion stages varied, and eight phenolic compounds were identified by UPLC-Triple-TOF/MS, namely, quercetin-3-O-robinoside-7-O-sophoroside, quercetin-3-O-neohesperidoside-7-O-glucoside, forsythobiflavone A, forsythobiflavone B, quercetin-3-O-rutinoside-7-O-glucoside, rutin, isoquercetin, and ferulic acid. These results indicated that in vitro digestion significantly increases the release of phenolic compounds and flavonoids from RTBC and there is a higher antioxidant activity after digestion than before digestion. The phenolic compounds released after digestion of RTBC are beneficial to health protection.
Deep Integration of Physical Education and Multimedia Technology Using Internet of Things Technology
Authors: Gu Yang
Published: June 2022

With the in-depth development of the new curriculum reform, school PE is facing new challenges. How to implement the innovative development of school PE teaching and improve the teaching efficiency and quality of school PE has become one of the key research objects of the state and schools. This paper is aimed at exploring the development prospect of IoT in PE and actively promoting the deep integration of animal Internet technology and PE, so as to improve the teaching quality and efficiency of PE teachers. Based on the deep integration of IoT, multimedia technology, and PE, this paper puts forward the potential value of IoT based on physical exercise. This paper discusses the benefits of IoT on college students’ volleyball and table tennis skill learning. At the same time, the teaching mode is applied to the teaching of volleyball spiking and table tennis technology, and the teaching effect of the teaching mode is analyzed and evaluated. By using SPSS17.0 after sorting out the data and conducting independent sample

t

-test, the confidence interval is 95%. The experimental results show that the technical evaluation scores of the experimental class before the experiment are lower than those of the control class. After the table tennis teaching experiment, there are significant differences in physical learning interest, learning ability, and sports performance compared with those before the experiment.
Structural Equation Modeling Analysis of Factors Influencing Family Doctor Contracted Services Based on Survey Data from Changning District, Shanghai
Authors: Liu Shanshan , Jiang Zhiyun , Wang Luan , Huang Jiaoling , Zhang Tao , Liu Chengjun , Zhang Yimin
Published: June 2022

Objective. Family doctors fulfill the role of gatekeepers in protecting residents’ health with contracted services. Providing these valuable services involves multiple causes, relationships, and indirectly observable variables. This study used structural equation modeling to construct a dynamic model of the work of family doctors to provide a basis for incentives. Methods. This study used 2-year follow-up data from a survey of 294 family doctors in Changning District, Shanghai. Data were analyzed using confirmatory factor analysis and structural equation modeling. The measurement model and structural model were defined, identified, verified, integrated, and revised to identify the factors motivating family doctors to provide contracted services. A dynamic path for the family doctor contracted services model was established and eventually modified with six endogenous latent variables: cognition, environmental satisfaction, income satisfaction, support satisfaction, stability, and contracting performance, underpinned by 27 measurement variables. Result. The standardized regression coefficient of the effect of cognition on environmental satisfaction was 0.37

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and the degree of variation interpretation was 0.14. The effect of cognition on income satisfaction was 0.54

P
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and the degree of variation interpretation was 0.29. The effect of cognition on stability was 0.40

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, the effect of environmental satisfaction on stability was 0.12

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, and the effect of income satisfaction on stability was 0.22

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, all with a degree of variation interpretation of 0.369. Finally, the effect of stability on contracting performance was 0.51

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with a degree of variation interpretation of 0.343. Conclusions. The degree of family doctors’ understanding (cognition) of their own work largely determines their behavioral orientation and service effectiveness. These results raise the possibility of enhancing family doctors’ work stability and improving the performance of contracted services by increasing the income of family doctors.
Experimental Study on the Modification Mechanisms of Dispersive Soil Treated with Hydroxyl Aluminum
Authors: Liu Jie , Chen Pan , Lu Zheng , Yao Hailin
Published: June 2022

Dispersive soil is a special clay that is easy to disintegrate and disperse into particles and suspend in water, which can easily cause erosion and piping damage of dams, grooves, and road slopes. In this study, a new dispersive clay modifier hydroxyl aluminum (a positively charged aluminum hydroxide electrolyte) was proposed. Previous studies have shown that it can well coat montmorillonite in clay and combine with it to stabilize the properties of clay. The modification effect and interaction mechanism of hydroxyl aluminum on dispersive soil were studied through indoor dispersion discrimination, physical and mechanical, and micro mechanism tests (SEM and XRD). The experimental results indicate the following: With the increase of hydroxyl aluminum content, the dispersion of dispersed soil decreases and becomes nondispersive soil. Hydroxyl aluminum has an excellent inhibiting dispersion effect on dispersive soil, and it has the “agglomeration” and “cementation” effect on the dispersive soil particles. The addition of hydroxyl aluminum makes the dispersive soil agglomerated crystals arranged closely, and the number of pores between the particles reduces clearly, making the dispersed particles agglomerated. It can also reduce the alkalinity of the clay and make the clay structure more stable to restrain the dispersion of clay.
Multimodal Orbital Angular Momentum Data Model Based on Mechanically Reconfigurable Arrays and Neural Networks
Authors: Zhang Lijun , Wang Shaojin , Zhu Xinhua , Guo Xiaohui , Gu Yuanbing
Published: June 2022

Multimodal orbital angular momentum is a research hotspot in the field of electromagnetic wave communication. How to accurately detect and identify multimodal orbital angular momentum data is a current academic problem. Based on the theory of mechanically reconfigurable arrays and neural networks, the purity, detection method, and transmission and reception of orbital angular momentum vortex waves are modeled in this paper. Through the network identification of the dynamic model of the three-degree-of-freedom reconfigurable manipulator, the paper takes the identification result and the control input of the single neuron PID as the input of the system control torque of the manipulator and realizes the reconfigurable manipulator. In the simulation process, the local approximation effect of the nonlinear control system used is very ideal. The single neuron PID controller overcomes the shortcomings of time-consuming and unsatisfactory control accuracy caused by the constant parameter of the traditional PID controller and realizes the circular loop. On the other hand, at the point of interest of the human eye, its resolution value is the largest, and its value gradually decreases as the distance from the pit increases. The experimental results show that the three-transmitting and three-receiving orbital angular momentum vortex wave transceiver system based on the mechanically reconfigurable array and neural network theory is relatively complete, and the transmission coefficient between the same modes reaches 0.827, which is much higher than that between different modes. On this basis, the modal purity, detection method, and reception of orbital angular momentum are studied accordingly. At the same time, the damage to the microscopic particles can be greatly reduced. At the same time, the information delay is reduced to 8.25%, which effectively improves the isolation characteristics of different modal orbital angular momentum channels and promotes the communication transmission of multimodal signals.
[Retracted] Clinical Application of Ultrasound Microscopy‐Guided Pediatric Brachial Plexus Nerve Block Anesthesia
Authors: Gu Li , An Hongqiang , Zhang Xifeng , Jiang Wenxu
Published: June 2022

In order to investigate the anesthetic effect and safety of the ultrasound‐guided brachial plexus block in pediatric upper limb surgery, this study retrospectively analyzed the anesthetic effect of the ultrasound‐guided brachial plexus block in pediatric upper limb surgery. From January 2016 to December 2017, 82 children undergoing upper limb surgery in hospital A were selected and randomly divided into two groups by the coin method, with 41 children in each group. Ultrasound‐guided brachial plexus block anesthesia and conventional anatomic localization brachial plexus block anesthesia were performed. The anesthetic drug dosage of sensory block at anesthesia completion time and motor block at onset time was compared between the two groups; the one‐time puncture success rate and incidence of anesthesia complications were compared between the two groups (local anesthesia poisoning, nerve injury, pneumothorax, hematoma, and phrenic nerve palsy). The results showed that the anesthesia completion time in the study group was slightly longer than that in the control group. The sensory and motor block occurred earlier in the study group than in the control group. Low doses of narcotic drugs are used. The one‐time puncture success rate of the study group was higher than that of the control group. The incidence of anesthesia complications was lower than that of the control group. The one‐time puncture success rate was 92.8% in the study group and 75.7% in the control group. Ultrasound‐guided brachial plexus block anesthesia has a significant effect in pediatric upper limb surgery, which can improve the anesthetic effect and reduce the incidence of complications, and is worthy of clinical promotion.
Magnetic Resonance Cholangiopancreatography to Evaluate Improvement Effect of FXR Regulating Bile Acid on Hepatocellular Carcinoma with Obstructive Jaundice
Authors: Wang Liu , Liu Shi , Li Yuanyuan
Published: June 2022

This research aimed at exploring the improvement effect of Farnesoid X receptor (FXR) regulating bile acid (BA) on hepatocellular carcinoma with obstructive jaundice under magnetic resonance cholangiopancreatography (MRCP). Forty‐eight hepatocellular carcinoma patients with obstructive jaundice who were examined in hospital were selected as the study group, and another 10 healthy volunteers who were examined at the same period were selected as the control group. The patients were treated with FXR inhibitor, and the therapeutic effect was observed. The results showed that after treatment, the AST content and TBIL content in serum of the study group were 123.5 ± 4.9 U/L and 1.8 ± 0.3 μmol/L, respectively, which were significantly lower than those before treatment, P < 0.05; the ALT content and AST content in serum in patients with high obstruction were significantly lower than those before treatment, and the K+ content was significantly higher than that before treatment (P < 0.05). The ALT, AST, and TBIL contents in serum in patients with low obstruction were significantly lower than those before treatment (P < 0.05). Apparent diffusion coefficient (ADC) was 1.17 ± 0.49 × 10−3 mm2/s in patients with moderate jaundice and 1.20 ± 0.27 × 10−3 mm2/s in patients with severe jaundice, compared with that before treatment, and the difference was statistically significant (P < 0.05). Based on FXR, it can regulate BA synthesis and metabolism, restore BA metabolic homeostasis, effectively play a hepatoprotective role, reduce bilirubin content in the body, and improve jaundice injury, which has application value.
Research of Magnetic Shielding on the Closing Gap of Optical Fiber Current Sensor
Authors: Li Chun , Zhang Shuihua , Meng Yi , Tie Jun , Zhao Rentao , Zeng Qingyu , Xiao Hao , Liu Dongwei
Published: June 2022

Reflective optical fiber current sensors have been widely used in electric power and metallurgy. However, the closing gaps between the

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wave plate and the reflector leads to a strong background current when they are used in strong magnetic fields. In this paper, a mathematical model of the background current was analyzed, and the relationship between the external magnetic field and the background current was identified through experiments. Therefore, a method to reduce the background current by magnetic shielding was proposed. A magnetic ring to shield the magnetic field effectively was designed, and the effects of the structure and relative permeability of the magnetic ring on its shielding rate were established by experiments and numerical simulations. The results showed that the shielding rate exceeded 95% when the length, thickness, and inner diameter of the magnetic ring were 50 mm, 2 mm, and 13 mm, respectively. Overall, this work provided a comprehensive framework that is useful for the analysis and optimization of magnetic shielding and improved the measurement accuracy of optical fiber current sensors in strong magnetic fields.
Analysis of Risk Factors for Rheumatoid Arthritis in Yunnan: A Small-Scale Case-Control Study
Authors: Li Wenrun , Sun Yi
Published: June 2022

Objective. To study the risk factors of rheumatoid arthritis (RA) in Yunnan and provide reference for its clinical prevention and treatment. Methods. From January 2014 to February 2022, a total of 249 RA patients who were admitted to the First People’s Hospital of Yunnan Province were selected and 149 healthy people were selected as the controls. The medical records, clinical data of blood test results of anticyclic citrullinated polypeptide (anti-CCP) antibody, antikeratin antibody (AKA), and antiperinuclear factor (APF) were collected. Logistic regression and receiver operating curve (ROC) were used to analyze the correlation between blood anti-CCP antibody, AKA, and APF and the occurrence of RA. Results. Univariate analysis showed that the age, proportion of hypertension, and diabetes patients in RA patients were significantly different from those in the control group (p < 0.05), but there was no statistical difference in sex (p > 0.05). The area under the curve (AUC) of the serum anti-CCP antibody level in the diagnosis of RA was 0.76 (95% CI: 0.72–0.81, p < 0.01), the sensitivity was 85.23%, the specificity was 61.45%, and the cutoff value was 18.07AU/mL. The positive rates of AKA (33.73%) and APF (43.37%) in the RA patients were significantly higher than those in the controls (4.03% and 6.04%), and the differences were statistically significant (p < 0.001). After adjusting for age, sex, hypertension, and diabetes, logistic regression analysis showed that anti-CCP positivity, AKA positive, and APF positive were all independent risk factors for RA (OR = 20.24, 95% CI: 9.36–43.77, p < 0.01; OR = 4.33, 95% CI: 1.62–11.60, p < 0.01; OR = 5.28, 95% CI: 2.33–11.99, p < 0.01). Conclusion. Anti-CCP positive, AKA positive, and APF positive are independent risk factors for the occurrence of RA. Serum anti-CCP level has high sensitivity but low specificity in the diagnosis of RA.
The Risk Model Based on the Three Oxidative Stress-Related Genes Evaluates the Prognosis of LAC Patients
Authors: Guo Qiang , Liu Xiao-Li , Liu Hua-Song , Luo Xiang-Yu , Yuan Ye , Ji Yan-Mei , Liu Tao , Guo Jia-Long , Zhang Jun
Published: June 2022

Background. Oxidative stress plays a role in carcinogenesis. This study explores the roles of oxidative stress-related genes (OSRGs) in lung adenocarcinoma (LAC). Besides, we construct a risk score model of OSRGs that evaluates the prognosis of LAC patients. Methods. OSRGs were downloaded from the Gene Set Enrichment Analysis (GSEA) website. The expression levels of OSRGs were confirmed in LAC tissues of the TCGA database. GO and KEGG analyses were used to evaluate the roles and mechanisms of oxidative stress-related differentially expressed genes (DEGs). Survival, ROC, Cox analysis, and AIC method were used to screen the prognostic DEGs in LAC patients. Subsequently, we constructed a risk score model of OSRGs and a nomogram. Further, this work investigated the values of the risk score model in LAC progression and the relationship between the risk score model and immune infiltration. Results. We discovered 163 oxidative stress-related DEGs in LAC, involving cellular response to oxidative stress and reactive oxygen species. Besides, the areas under the curve of CCNA2, CDC25C, ERO1A, CDK1, PLK1, ITGB4, and GJB2 were 0.970, 0.984, 0.984, 0.945, 0.984, 0.771, and 0.959, respectively. This indicates that these OSRGs have diagnosis values of LAC and are significantly related to the overall survival of LAC patients. ERO1A, CDC25C, and ITGB4 overexpressions were independent risk factors for the poor prognosis of LAC patients and were associated with risk scores in the risk model. High-risk score levels affected the poor prognosis of LAC patients. Notably, a high-risk score may be implicated in LAC progression via cell cycle, DNA replication, mismatch repair, and other mechanisms. Further, ERO1A, CDC25C, and ITGB4 expression levels were related to the immune infiltrating cells of LAC, including mast cells, NK cells, and CD8 T cells. Conclusion. In summary, ERO1A, CDC25C, and ITGB4 of OSRGs are associated with poor prognosis of LAC patients. We confirmed that the risk model based on the ERO1A, CDC25C, and ITGB4 is expected to assess the prognosis of LAC patients.
Application of Surface‐Enhanced Raman Spectroscopy in the Screening of Pulmonary Adenocarcinoma Nodules
Authors: Peng Bowen , Yan Huan , Lin Runrui , Yin Gang
Published: June 2022

This study is aimed at evaluating the feasibility of a screening method for the pulmonary adenocarcinoma nodules through surface‐enhanced Raman spectroscopy (SERS). Objective. Using SERS to measure serum from pulmonary nodules and healthy subjects, intraoperative biopsy pathological diagnosis was regarded as the gold standard for labeling serum samples. To explore the application value of SERS in the differential diagnosis of pulmonary adenocarcinoma nodules, benign nodules, and healthy, we build a machine learning model. Method. We collected 116 serum samples from patients. Radiographically confirmed nodules less than 3 cm in maximum diameter in all patients, including 58 cancer (pathologic diagnosis: adenocarcinoma nodules, labeled as cancer) patients, 58 pathologic diagnoses as benign nodule (labeled as benign) patients, and 63 healthy (labeled as normal) people from the clinical laboratory of Sichuan Cancer Hospital. Gold nanorods were employed as SERS substrates. Support vector machine (SVM) was used to classify the normal, benign, and cancer sample groups, and SVM model evaluated using cross‐validation. Results. The average SERS spectra of serum were significantly different between the normal group and the cancer/benign group. While the average SERS spectra of the cancer group and the benign group differed slightly, for the cancer, benign, and normal groups, SVM models can predict with 93.33% accuracy. Conclusion. This exploratory study demonstrates that the SERS technique based on nanoparticles in conjunction with SVM has great potential as a clinical auxiliary diagnosis and screening for pulmonary adenocarcinoma nodules.
Identification of an Amino Acid Metabolism Signature Participating in Immunosuppression in Ovarian Cancer
Authors: Yang Hanlin , Zi Dan
Published: June 2022

Ovarian cancer is one of the most fatal gynecologic cancer types, and its heterogeneity in the microenvironment limited the efficacy of the current treatment. In this study, we aimed at building a risk score to predict patient survival based on the amino acid metabolic genes and TCGA RNA-seq dataset (n = 376). We first used univariate analysis and PCA to select and test the survival-related genes, and the LASSO regression was applied to build the risk score signature with prediction accuracy estimation by survival analysis and ROC. We then conducted GSEA and GSVA to investigate the biological roles of the signature and run ESTIMATE and 4 different immunocyte infiltration algorithms to investigate the immunological diversity between the risk groups. Furthermore, the immune checkpoint expression was compared. We finally explored the cMap and PRISM database to screen out sensitive drugs for high-risk patients and analyzed the oncogenic role of TPH1 by clone formation and transwell migration assays. As a result, the risk score predicted patients’ survival and stage with high accuracy. We found that the signature mainly affected the extracellular activities and cancer immunity by functional enrichment. We further discovered that the high-risk OV harbored a high level of stromal cell infiltration and was associated with highly infiltrated fibroblasts and decreased CD8+ T cells. The immune checkpoint analyses showed that TGFB1 and CD276 were upregulated. Finally, we screened out 4 PRISM drugs with lower IC50 in the high-risk group and validated the oncogenic role of TPH1 in OV cancers. We believe this research offered a novel understanding of the interplay between amino acid metabolism and immunity in OV and will benefit patients with better prognostic management and therapeutic strategy development.
Effect Evaluation of Dexmedetomidine Intravenous Anesthesia on Postoperative Agitation in Patients with Craniocerebral Injury by Magnetic Resonance Imaging Based on Sparse Reconstruction Algorithm
Authors: Feng Xue , Zhao Binbin , Wang Yongqiang
Published: June 2022

The effect of dexmedetomidine on postoperative agitation of patients with craniocerebral injury was investigated based on magnetic resonance imaging (MRI) with the sparse reconstruction algorithm. Sixty patients with craniocerebral injury who underwent tracheal intubation and craniotomy hematoma removal under general anesthesia in hospital were selected as the research objects. Patients were randomly and averagely divided into the normal saline group (group A) and the dexmedetomidine (DEX) group (group B). DEX was added to patients in group A during anesthesia. Other operations in group B were the same as those in group A, where DEX needed to be used was replaced by an equal amount of the normal saline. All patients received the MRI examination, and the images were processed by using the sparse reconstruction algorithm. After the surgery, some indexes, such as hemodynamics (mean arterial pressure (MAP) and hear rate (HR)), the Riker sedation agitation score, the Ramsay sedation score, and the visual analogue scale (VAS) score were recorded and compared. The results showed that the MRI image quality processed by sparse reconstruction algorithm was observably improved. After reconstruction, the sharpness of the image was significantly improved, and the distinction between lesions and tissues was also increased. The Riker sedation agitation score and the incidence of agitation in group A were greatly lower than those in group B (16% VS 76%, P < 0.05). The Ramsay sedation score of group A was manifestly higher than that of group B. The cases of postoperative nausea, vomiting, chills, delirium, and bradycardia in group A were 2, 1, 1, 0, and 1, respectively. The cases of postoperative nausea, vomiting, chills, delirium, and bradycardia in group B were 3, 9, 6, 5, and 0, respectively. The cases of chills and delirium in group A were observably less than those in group B (P < 0.05). In conclusion, based on the sparse reconstruction algorithm, the MRI technology and DEX had high adoption value in preventing postoperative agitation of patients with craniocerebral injury. Compared with group B, the hemodynamics of patients in group A was more stable.
Clinical Efficacy of Laparoscopic Billroth II Subtotal Gastrectomy Plus Lienal Polypeptide Injection for Gastric Cancer
Authors: Yan Wei , Yan Siqi , He Wu
Published: June 2022

Objective. To evaluate the clinical efficacy of laparoscopic Billroth II subtotal gastrectomy plus lienal polypeptide injection for gastric cancer. Methods. Between May 2018 and January 2021, 110 patients with gastric cancer treated in Jingzhou First People’s Hospital were recruited and assigned via the random number table method to either an observation group or a control group, with 55 patients in each group. All patients received laparoscopic Billroth II subtotal gastrectomy, and the observation group additionally received lienal polypeptide injection. Outcome measures include surgical indexes, clinical efficacy, and adverse events. Results. The patients in the observation group had significantly less intraoperative hemorrhage volume, smaller surgical wounds, shorter time lapse before passing gas and hospital stay, and longer operation time than those in the control group (

P
<
0.001

). The observation group showed significantly higher efficacy than the control group (

P
=
0.001

). The observation group had a significantly lower incidence of toxic side effects and adverse events than the control group (

P
<
0.05

). After treatment, the CD3+ and CD4+ levels were significantly elevated and the CD8+ level was decreased, with higher CD3+ and CD4+ levels and lower CD8+ levels in the observation group than in the control group (

P
<
0.05

). Conclusion. In the treatment of patients with gastric cancer, laparoscopic Billroth II subtotal gastrectomy plus lienal polypeptide injection features promising efficacy, improves the immune function of patients, effectively reduces the occurrence of toxic side effects and adverse reactions, with less trauma and rapid recovery, which shows good potential for use in clinical application.
Effect of Running Pose Control Training on Ground Reaction Force, Lower Limb Kinetics
Authors: Zhang Jinjin , Zhao Manman
Published: June 2022

As a new strength training method, running form control training has been widely used in foreign athletes’ strength training and public rehabilitation. As a means of auxiliary strength training, running form strength has attracted wide attention in China. In order to keep up with the latest international strength training theory and technology, the reaction force of people’s running style on the ground was compared with the kinematics and dynamics of lower limbs and studied deeply. The significantly reduced load rate in the absence of running posture transformation is speculated to increase to the adaptation strategy of social body after changing shoe conditions. After training, the load rate was deep than that of the control group, increasing that even though the load rate could be reduced by the training method adapted to the ground hardness, the training effect with a clear goal was more significant. Through the comparison of lower limb joint kinematics and training effect, some flexor strength training methods can be added, and the load intensity and quantity can be appropriately increased, so that the proportion of the strength level of the extensor muscle of the lower limb joint can be coordinated, so as to better improve the coordination force level.
Effect of Corn Stalk Biochar on the Evolution of Water Evaporation and Cracking of Soil
Authors: Zhang Dingyang , Lv Qihang , Xu Xinyang , Li Bin , Sun Min
Published: June 2022

The evolution of water evaporation and cracking of soil affected by corn stalk biochar is experimentally investigated. Water evaporates from the soil surface, causing shrinkage in soil body and forming cracks, which significantly lead to crop nutrient loss, groundwater pollution, and land salinization. Biochar is a recyclable natural material widely used in improving the water retention and suppression of cracking of soils. Free desiccation tests were conducted with adding the biochar contents of 0%, 4%, and 8%. The variation of water evaporation amount and the development of cracking were recorded and disposed. The results show that the evaporation process can be changed due to the addition of biochar contents. The evaporation rate can be divided into three phases of a constant rapid evaporation phase, a fluctuated evaporation phase, and a residual evaporation phase. A sudden increase at around 30% of moisture content in evaporation rate indicated that the crack began to develop and extend greatly, which increased the evaporation surface area. The residual moisture contents of soils with biochar contents of 4% and 8% increased by 105.56% and 88.38% than those of soil without biochar, respectively. The crack ratio reduced by 32.39% and 15.31% with the addition of biochar contents of 4% and 8%, respectively. A three-level crack was observed during evaporation process, where a second and third crack developed less with the addition of biochars. The corn stalk biochar improves the integrity of soil bodies and increases the connection of soil particles for more water storing between the biochar particles and soil particles. It can be concluded that corn stalk biochars are able to delay the evaporation and cracking developing in cohesive soils, which may be beneficial for crops in dry area.
Research Status of Sports Industry Laws from the Perspective of Knowledge Graph
Authors: Zhao Jialei
Published: June 2022

The purpose of this study is to explore the hot topics of sports industry policy research and the future trends of research in this field. The time node selects the literature published in related journals from 1990 to 2022 as sample data. The research uses citespace6.1 software to draw a knowledge map for research in this field, relevant statistics of research literature in this field, mathematical statistics, word frequency analysis, keyword cooccurrence analysis, and other methods. This study analyzed the temporal and spatial distribution of literature, the specific situation of cooperative research, the changes of research hotspots, and the future research trend in the whole development process of sports industry policy research. Results show that sports colleges/institution is the main institution for sports industry policy research. Among them, sports colleges and professional sports colleges in comprehensive universities occupy a dominant position in research results; research strength is mainly concentrated in the eastern and central regions, and the core authors of the article are mainly concentrated in the Middle East; the cooperation situation of sports industry policy research is gradually formed, but the scale and degree of cooperation in this field have a large room for improvement at present; the main research hotspots in this field are sports industry, sports industry policy, sports consumption, etc.; the hotspots of sports industry policy research are differentiated according to different time periods.
Liquid-Phase Synthesis of Nano-Zinc Oxide and Its Photocatalytic Property
Authors: Wang Rong
Published: June 2022

To solve the problem of liquid-phase synthesis of nano-ZnO, a photocatalytic performance study was proposed. In this study, the microwave homogeneous precipitation method was used to add different types and amounts of surfactants. The synthesis of nano-zinc oxide was controlled by changing the reaction system conditions. The photocatalytic properties of nano-zinc oxide for degrading three water-soluble dyes were preliminarily studied and discussed. The results show that the photocatalytic performance of nano-ZnO is closely related to its size, morphology, specific surface area, and even crystallographic direction.