Subjects: Physics >> Nuclear Physics submitted time 2024-04-28
Abstract： Capacitors are widely used in pulsed magnet power supplies to reduce ripple voltage, store energy, and decrease power variation. In this study, DC-link capacitors in pulsed power supplies were investigated. By deriving an analytical method for the capacitor current on the H-bridge topology side, the root-mean-square value of the capacitor current was calculated, which helps in selecting the DC-link capacitors. The proposed method solves this problem quickly and with high accuracy. The current reconstruction of the DC-link capacitor is proposed to avoid structural damage in the capacitor’s current measurement, and the capacitor’s hot spot temperature and temperature rise are calculated using the FFT transform. The test results showed that the error between the calculated and measured temperature increases was within 1.5 ◦C. Finally, the lifetime of DC-link capacitors was predicted based on Monte Carlo analysis. The proposed method can evaluate the reliability of DC-link capacitors in a non-isolated switching pulsed power supply for accelerators and is also applicable to film capacitors.
YES
Subjects: Nuclear Science and Technology >> Engineering Technology of Fission Reactor submitted time 2024-04-27
Abstract： The heavy-water-moderated molten-salt reactor (HWMSR) is a newly proposed reactor concept, in which heavy water is adopted as the moderator and molten salt dissolved with fissile and fertile elements is used as the fuel. Issues arising from graphite in traditional molten-salt reactors, including the positive temperature coefficient and management of highly radioactive spent graphite waste, can be addressed using the HWMSR. Until now, research on the HWMSR has been centered on the core design and nuclear-fuel cycle to explore the viability of the HWMSR and its advantages in fuel utilization. However, the core safety of the HWMSR has not been extensively studied. Therefore, we evaluate typical accidents in a small modular HWMSR, including fuel-salt inlet temperature-overcooling and -overheating accidents, fuel-salt inlet flow-rate decrease, heavy-water inlet temperature-overcooling accidents, and heavy-water inlet mass flow-rate decrease accidents, based on a neutronics and thermal-hydraulics coupled code. The results demonstrated that the core maintained safety during the investigated accidents.
YES
Subjects: Nuclear Science and Technology >> Radiation Physics and Technology submitted time 2024-04-27
Gao-Long Zhang
Zhen-Wei Jiao
Guang-Xin Zhang
E. N. Cardozo
B. Paes
S. P. Hu
J. Q. Qian
Daniele Mengoni
W. W. Qu
C. B. Li
Y. Zheng
H. Q. Zhang
H. B. Sun
N. Wang
C. L. Zhang
J. J. Valiente-Dobo´n
D. Bazzacco
D. R. Napoli
F. Galtarossa
F. Recchia
Abstract： One-neutron stripping process between 6Li and 209Bi was studied at 28, 30, and 34 MeV using the in-beam γ-ray spectroscopy method. The γ-γ coincident analysis clearly identified two γ-rays feeding the ground and long-lived isomeric states, which were employed to determine the cross section. The one-neutron stripping cross sections were similar to the cross sections of complete fusion in the 6Li+209Bi system, but the one-neutron stripping cross sections decreased more gradually at the sub-barrier region. A coupled-reaction-channel calculation was performed to study the detailed reaction mechanism of the one-neutron stripping process in 6Li. The calculations indicated that the first excited state of 5Li is critical in the actual one-neutron transfer mechanism, and the valence proton of 209Bi can be excited to the low-lying excited state in (6Li, 5Li) reaction, unlike in the (d,p) reaction.
YES
Subjects: Nuclear Science and Technology >> Radioactive Metrology submitted time 2024-04-26
Abstract： The aim of this study is to evaluate the uncertainty of 2πα and 2πβ surface emission rates using the windowless multiwire proportional counter method. This study used the Monte Carlo method (MCM) to validate the conventional Guide to the Expression of Uncertainty in Measurement (GUM) method. A dead-time measurement model for the two-source method was established based on the characteristics of a single-channel measurement system, and the voltage threshold correction factor measurement function was indirectly obtained by fitting the threshold correction curve. The uncertainty in the surface emission rate was calculated using the GUM method and the law of propagation of uncertainty. The MCM provided clear definitions for each input quantity and its uncertainty distribution, and the simulation training was realized with a complete and complex mathematical model. The results of the surface emission rate uncertainty evaluation for four radioactive plane sources using both methods showed an uncertainty consistency En < 0.070 for the comparison of each source, and the uncertainty results of the GUM were all lower than those of the MCM. However, the MCM has a more objective evaluation process and can serve as a validation tool for GUM results.
YES
Subjects: Nuclear Science and Technology >> Radiation Physics and Technology submitted time 2024-04-26
Abstract： Small-scale measurements of the radon exhalation rate using the flow-through and closed-loop methods were conducted on the surface of a uranium tailing pond to better understand the differences between the two methods.
An abnormal radon exhalation behavior was observed, leading to computational fluid dynamics (CFD)-based simulations in which dynamic radon migration in a porous medium and accumulation chamber was considered.
Based on the in-situ experimental and numerical simulation results, variations in the radon exhalation rate subject to permeability, flow rate, and insertion depth were quantified and analyzed. The in-situ radon exhalation rates measured using the flow-through method were higher than those measured using the closed-loop method, which could be explained by the negative pressure difference between the inside and outside of the chamber during the measurements. The consistency of the variations in the radon exhalation rate between the experiments and simulations suggests the reliability of CFD-based techniques in obtaining the dynamic evolution of transient radon exhalation rates for diffusion and convection at the porous medium–air interface. The synergistic effects of the three factors (insertion depth, flow rate, and permeability) on the negative pressure difference and measured exhalation rate were quantified, and multivariate regression models were established, with positive correlations in most cases; the exhalation rate decreased with increasing insertion depth at a permeability of 1×10−11 m2. CFD-based simulations can provide theoretical guidance for improving the flow-through method and thus achieve accurate measurements
Subjects: Psychology >> Social Psychology submitted time 2024-04-26
Abstract： Memories of individuals are typically encoded, stored, recalled, and reconstructed through direct or indirect interactions with others. Cuc et al. (2007) founded that during interactive retrieval, speakers’ selective recall of memories results in the forgetting of non-target information related to the retrieved information, a phenomenon known as retrieval-induced forgetting (RIF). Simultaneously, listeners in this interactive process are also influenced by the speakers’ selective recall, leading to the forgetting of relevant but not retrieved information, a phenomenon termed socially shared retrieval-induced forgetting (SS-RIF). Building on the intertwined connection between emotion, motivation, and memory, this study investigates the impact of emotional valence and motivation on socially shared retrieval-induced forgetting in the context of interactive retrieval.
In Experiment 1, emotional valence and item type were manipulated to explore the influence of emotional valence on socially shared retrieval-induced forgetting. The experiment employed a within-participants design of 3 (emotional valence: positive emotion, neutral emotion, negative emotion) × 4 (item type: Rp+, Rp−, Nrp+, Nrp−). The dependent variable was participants’ recall accuracy of items under the three emotional conditions. The results demonstrated that listeners exhibited socially shared retrieval-induced forgetting effects under positive and neutral emotions but not under negative emotions in the interactive retrieval practice paradigm. Additionally, the effect was more pronounced under positive emotions compared to neutral emotions, aligning with our Hypothesis 1.
Experiment 2 manipulated positive emotional motivation and item type to investigate the impact of motivation on socially shared retrieval-induced forgetting. The experiment employed a within-participants design of 2 (positive emotional motivation dimension: high-motivation with positive emotion, low-motivation with positive emotion) × 4 (item type: Rp+, Rp−, Nrp+, Nrp−). Results indicated that listeners exhibited socially shared retrieval-induced forgetting effects under both high- and low-motivation with positive emotional conditions, consistent with the findings of Experiment 1. Moreover, the level of socially shared retrieval-induced forgetting was significantly higher under high-motivation with positive emotions compared to low-motivation with positive emotions, supporting our Hypothesis 2.
These findings offer empirical support for comprehending the impact of emotional valence and motivation on socially shared retrieval-induced forgetting, underscoring the crucial role of emotion and motivation in memory outcomes during social interactive tasks.
Subjects: Nuclear Science and Technology >> Radiation Physics and Technology submitted time 2024-04-26
Abstract： This paper presents a superhydrophobic melamine (ME) sponge (ME-g-PLMA) prepared via high-energy radiation induced in-situ covalent grafting long alkyl chain dodecyl methacrylate (LMA) onto the ME sponge for efficient oil-water separation. The obtained ME-g-PLMA sponge have the excellent pore structure with superhydrophobic (water contact angle is 154°) and super oleophilic properties, can absorb various types of oil up to 66-168 times of its own weight. The obtained ME-g-PLMA sponge can continuously separate oil slick on water by connecting the pump or separate oil under water with a gravity-driven device. The ME-g-PLMA sponge can also maintain its highly hydrophobic properties after long-term immersion in different corrosive solutions and repeated adsorption of oil for many times. The obtained modified ME-g-PLMA sponge has excellent separation properties and has great potential for oil spill cleanup.
Subjects: Nuclear Science and Technology >> Radiation Physics and Technology submitted time 2024-04-26
Abstract： BL02U2 of the Shanghai Synchrotron Radiation Facility (SSRF) is a surface diffraction beamline with a photon flux of 5.5 × 1012 photons/s at 10 keV and a beam size of 160×80 µm2 at the sample site. It is dedicated to studying surfaces (solid–vacuum, solid–gas) and interfaces (solid–solid, solid–liquid, and liquid–liquid) in nanoscience, condensed matter, and soft matter systems using various surface scattering techniques over an energy range of 4.8–28 keV with transmission and reflection modes. Moreover, BL02U2 has a high energy resolution, high angular resolution, and low beam divergence, which can provide excellent properties for X-ray diffraction experiments, such as grazing incident X-ray diffraction, X-ray reflectivity, crystal truncation rods, and liquid X-ray scattering. Diversity of in-situ environments can also be provided for the samples studied. This paper describes the setup of the new beamline and its applications in various fields.
Subjects: Nuclear Science and Technology >> Nuclear Detection Technology and Nuclear Electronics submitted time 2024-04-26
Abstract： [Background]: The High Energy Cosmic Radiation Detection Facility (HERD) is a flagship scientific instrument planned to be deployed on the Chinese Space Station, aiming to indirectly detect dark matter, accurately measure cosmic ray compositions, and conduct surveys of high-energy gamma-ray emissions. Among them, the silicon charge detector is one of the key components of HERD, used to measure the charges of cosmic rays ranging from hydrogen to nickel.[Purpose]: To validate and analyze the charge measurement capability of silicon charge detectors, a ground test system was designed for a prototype silicon charge detector beamline.[Methods]: The ground test system utilizes Xilinx's ZYNQ UltraScale+ MPSoC chip as the control chip, achieving functions including LVDS data reception, encoding and decoding, RS-422 control, and gigabit Ethernet data reception and storage. [Results]: The silicon charge detector beamline prototype participated in heavy ion beam experiments at the European Nuclear Research Center, with the ground test system collecting 100G of experimental data during the beamline experiments. [Conclusions]: The Ground Test system demonstrated good stability and reliability during the beam experiment, providing important technical support and data foundation for subsequent experiments of the HERD project's silicon charge detector.
Subjects: Nuclear Science and Technology >> Isotopic Technology submitted time 2024-04-26
Abstract： We proposed and compared three methods (filter burnup, single-energy burnup, and burnup extremum analysis) to build a high-resolution neutronics model for 238Pu production in high-flux reactors. The filter burnup and single-energy burnup methods have no theoretical approximation and can achieve a spectrum resolution of up to ~1 eV, thereby constructing the importance curve and yield curve of the full energy range. The burnup extreme analysis method combines the importance and yield curves to consider the influence of irradiation time on production efficiency, thereby constructing extreme curves. The three curves, which quantify the transmutation rate of the nuclei in each energy region, are of physical significance because they have similar distributions. A high-resolution neutronics model for 238Pu production was established based on these three curves, and its universality and feasibility were proven. The neutronics model can guide the neutron spectrum optimization and improve the yield of 238Pu by up to 18.81%. The neutronics model revealed the law of nuclei transmutation in all energy regions with high spectrum resolution, thus providing theoretical support for high-flux reactor design and irradiation production of 238Pu
Subjects: Psychology >> Management Psychology submitted time 2024-04-25
Abstract： The Leader-Member Exchange (LMX) relationship within organizations is dynamic, evolving over time and in response to key events. However, existing research lacks an in-depth exploration of the dynamic nature of LMX development and the mechanisms through which events drive these changes. This study aims to address this gap by investigating the key events that influence shifts in LMX quality, systematically analyzing the antecedents and potential mechanisms underlying the dynamics of LMX relationships. The study will employ a deductive approach coupled with qualitative methods to identify fundamental trends in LMX evolution and pinpoint the key events that instigate these transformations. Subsequently, building on the initial exploration of LMX dynamics and their triggers, the study will conduct empirical research to track the developmental changes in LMX at different stages. Specifically, during the establishing phase of LMX, emphasis will be placed on interactions between employees and leaders, exploring the process of LMX establishment and development for new employees. In the routinization phase of LMX, the study will investigate significant internal and external events that drive further changes in LMX, examining the patterns of LMX evolution through event analysis. By anchoring the research in critical events, a theoretical framework for understanding the dynamic shifts in LMX will be developed, offering practical insights and recommendations for managers and team management practices.
Subjects: Nuclear Science and Technology >> Radiation Physics and Technology submitted time 2024-04-25
Abstract： A Laue microdiffraction beamline (BL03HB) was constructed at the Shanghai Synchrotron Radiation Facility (SSRF). This beamline features two consecutive focusing points in two different sectors within its end station, the first dedicated to protein crystallography and the other tailored to materials science applications. Based on a superbend dipole magnet with a magnetic field of 2.29 T, a two-stage focusing design was implemented with two sets of Kirkpatrick–Baez mirrors to achieve a micro white beam as small as 4.2×4.3 µm 2 at the first sector and 0.9×1.3 µm 2 at the second sector in the standard beamline operation mode at SSRF. The X-ray microbeam in the two sectors can be easily switched between monochromatic and white beams by moving a four-bounce monochromator in or out of the light path, respectively. In the protein crystallography sector, white-beam Laue microdiffraction was demonstrated to successfully determine the structure of protein crystals from only a few images of diffraction data collected by a Pilatus 2M area detector. In the materials science sector, the white-beam Laue diffraction was collected in a reflection geometry using another Pilatus 2M area detector, which could map the microstructural distribution on the sample surface by scanning the samples. In general, the BL03HB beamline promotes the application of Laue microdiffraction in both protein crystallography and materials science. This paper presents a comprehensive overview of the BL03HB beamline, end station, and the first commission results.
Subjects: Library Science，Information Science >> Information Science submitted time 2024-04-24
Abstract： Abstract: Objective This paper reviews the relevant progress of semantic novelty research at home and abroad, and summarizes the relevant technologies to provide reference for the subsequent research. Coverage Using retrieval methods such as Novelty of the literature , semantic novelty , literature novelty , semantic novelty and literature evaluation , after reading and sorting, this paper traced the source of representative relevant theoretical researches, and finally selected 70 literatures for review. Methods This paper summarizes the relevant researches on semantic novelty at home and abroad, and analyzes the development status and future trend of semantic novelty evaluation in scientific and technological literature by focusing on the definition of novelty, evaluation indexes of novelty and different evaluation methods. Results Semantic novelty evaluation has gradually attracted widespread attention from the academic community. There have been related studies on semantic content mining and evaluation, but no unified measurement index has yet been formed. Limitations The existing literature novelty is mostly evaluated from external features, while the number of literatures directly focusing on semantic novelty is small, which has limitations in supporting the review. Conclusions The evaluation of semantic novelty of scientific and technological literature is based on the novelty of content. Quantitative research has become the mainstream research method, but the calculation method of evaluation index needs to be clarified, and the development direction of novelty evaluation should be combined with qualitative and quantitative methods to achieve a scientific and reasonable comprehensive evaluation.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2024-04-24 Cooperative journals: 《中国全科医学》
Abstract： Based on literature analysis， the paper systematically summarizes the development history， grouping and payment mode of the Home Health Prospective Payment System （HHPPS） in the United States. The Home Health Prospective Payment System has developed three versions since its establishment， and the grouping results are more refined and scientific，from the initial 80 home health resource groups to 432 home health resource groups. This method can effectively control expenses，but it requires a large amount of home health care data， scientific and complete expense settlement system and medical record management system. There are still some difficulties in the promotion and implementation in our country at this stage. Our country should learn from the Home Health Prospective Payment System of the American， establish a unified and standardized evaluation system， develop and improve the home medical service information collection system， promote the development of home care services in various aspects， and finally realize the establishment of a scientific and effective payment model， so as to enable the sustainable development of home care service.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2024-04-24 Cooperative journals: 《中国全科医学》
Abstract： Health co prosperity is the conceptual interpretation and application extension of the logic of common prosperity in the field of health. Building a digital collaborative health governance model between Chinese and Western medicine based on the advantages of digital reform is the "Zhejiang model" of health co prosperity and helps to achieve the goal of high quality full life cycle medical and health services. This article is based on the collection of relevant policies on the digital collaboration between Chinese and Western medicine during the construction of the Common Prosperity Demonstration Zone in China and Zhejiang Province. It elaborates on the definition and connotation of health co prosperity，and selects the digital Chinese and Western coordinated health governance model of provincial，grassroots platforms，and medical institutions in Zhejiang Province as a specific case to explain the theme and path of the system design logic，grassroots platform logic，and institutional service logic of health co prosperity，To provide reference and suggestions for the innovative construction and optimization of the collaborative health governance model between Chinese and Western medicine.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2024-04-24 Cooperative journals: 《中国全科医学》
Abstract： Background At present，chronic non-communicable diseases have become the major diseases affecting people's health in China. Most of the studies on resource allocation for chronic disease prevention and control are status quo surveys or equity analyses，and there is a lack of representative indicators for evaluating the results. Objective To analyze the changes of the appropriateness of resource allocation for chronic disease prevention and control in Chongqing，and to explore its impact on the effectiveness of chronic disease prevention and control. Methods In accordance with the principle of " exhaustiveness "，this study systematically collected all the literature in the field of chronic diseases in Chongqing from 2010 to 2021 published on the websites of the government，the Health and Planning Commission and its related departments，as well as on open databases such as the CNKI and the Web of Science，and a quantitative analysis was made on the appropriateness of resource allocation for the prevention and control of chronic diseases. After the systematic collection of information，this study was respectively carried out from the four secondary indicators and thirteen tertiary indicators of the appropriateness of resource allocation for chronic disease prevention and control，which was derived from the quantitative standards previously constructed by the research group. The "five-point scale" method was used to semi-quantitatively score the severity of the problem （0 points indicate that there is no problem，5 points indicate that the problem is very serious） and the scores were further calculated to determine the appropriateness of resource allocation. Correlation analysis and linear regression were used to analyze the influence of the appropriateness of resource allocation on the prevention and control of chronic diseases. Results From 2010 to 2021， the appropriateness of resource allocation for chronic disease prevention and control in Chongqing has increased from 6.64% to 27.57%; the appropriateness of human resource allocation has increased from 36.49% to 46.59%，the appropriateness of financial resource allocation has increased from 41.06% to 50.28%，the appropriateness of material resource allocation has increased from 41.40% to 42.96%，and the appropriateness of information resource allocation has increased from 5.73% to 24.09%. Among them，the appropriateness of financial and material resource allocation is significantly negatively correlated with the premature mortality rate of chronic diseases in Chongqing，with correlation coefficients of -0.722 and -0.586，respectively. Conclusion The appropriateness of resources allocation for the prevention and control of chronic diseases in Chongqing has been increasing year by year，but it is still at a lower level in general，and the main reason restricting its development lies in the relatively low information resources allocation; it is important to expedite the enhancement of the appropriateness of resources allocation to cope with the rapid increase of the number of chronic disease cases.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2024-04-24 Cooperative journals: 《中国全科医学》
Abstract： Background Coronary atherosclerotic heart disease （CHD） is one of the leading causes of mortality worldwide，and research on risk assessment for CHD has been growing annually. However，the issue of data imbalance in these studies is often overlooked，despite its crucial role in enhancing the accuracy of CHD risk identification within classification algorithms. Objective To investigate the factors influencing CHD and to establish predictive models for CHD risk using two data balancing methods based on five algorithms，comparing the predictive value of these models for CHD risk. Methods Utilizing cross-sectional survey data from the 2021 Behavioral Risk Factor Surveillance System （BRFSS） in the United States，a cohort of 112，606 participants was identified，featuring 24 variables related to risk behaviors and health status，with self-reported coronary heart disease （CHD） as the outcome measure. Factors influencing the incidence of CHD were explored through univariate analysis and stepwise logistic regression to select pertinent variables for inclusion in the predictive model. A random sample comprising 10% of the participants （11，261 individuals） was drawn and then randomly divided into training and testing datasets at an 8：2 ratio. To address data imbalance，two over-sampling techniques were employed：random oversampling and the Synthetic Minority Over-sampling Technique （SMOTE）. Based on these methods，CHD predictive models were constructed using five different algorithms：K-Nearest Neighbors （KNN），Logistic Regression，Support Vector Machine （SVM）， Decision Tree，and XGBoost. Results Univariate analysis revealed significant differences （P<0.05） between the CHD and non-CHD groups across all input variables except for rental housing and being informed of prediabetic status. Stepwise logistic regression identified age，gender，BMI，ethnicity，education level，income level，being informed of hypertension，being informed of prehypertension，being informed of pregnancy-induced hypertension，current use of antihypertensive medication， being informed of hyperlipidemia，being informed of diabetes，smoking status，alcohol consumption within the last 30 days， heavy drinking status，and self-assessed health as factors influencing CHD. The performance of risk models using SMOTE showed overall classification accuracies of 59.2%，67.4%，66.2%，69.2%，and 85.9%；recall rates of 75.2%，71.4%，70.5%， 62.9%，and 34.8%；precision of 15.4%，18.2%，17.5%，17.6%，and 28.7%；F-values of 0.256，0.290，0.280，0.275， and 0.315；and AUC values of 0.80，0.78，0.72，0.72，and 0.82，respectively. Using random oversampling，the models achieved classification accuracies of 62.5%，68.5%，69.0%，60.2%，and 70.1%；recall rates of 70.0%，69.5%，71.9%， 69.0%，and 67.6%；precision of 15.8%，18.4%，19.1%，14.8%，and 19.0%；F-values of 0.258，0.291，0.302，0.244， and 0.297；and AUC values of 0.80，0.77，0.72，0.72，and 0.83，respectively. Conclusion This study not only confirmed known factors affecting CHD but also identified potential impacts of self-assessed health level，income level，and education level on CHD. The performance of the five algorithms was significantly enhanced after employing two data balancing methods. Among them，the XGBoost model exhibited superior performance and can be referenced for future optimization of CHD prediction models. Additionally，considering the excellent performance of the XGBoost model and the convenience and interpretability of stepwise logistic regression，a combined use of these approaches after data balancing is recommended in CHD risk prediction models.
Subjects: Psychology >> Developmental Psychology Subjects: Psychology >> Educational Psychology submitted time 2024-04-23
Abstract： As a crucial component of cognitive function, mathematical ability plays an essential role in an individual’s future development. Previous studies have highlighted significant differences in this ability between children from high and low family socioeconomic backgrounds. Executive functioning are the most reliable factor in explaining this disparity. However, fundamental questions remain about the mediating role of executive functioning in this relationship: (1) The role of specific subcomponents of executive functioning in their relationship. (2) The differences in the impact of socioeconomic status on various mathematical abilities through these executive functioning subcomponents. (3) The variations in the role of executive functioning in the relationship between socioeconomic status and both current and future mathematical abilities. Accordingly, our study explored the impact of socioeconomic status on the second and third graders’ mathematical operations, logical reasoning, and spatial imagination abilities, as well as the mediation role of interference inhibition, response inhibition, and working memory. A total of 185 second-grade students were followed for 20 months in two assessments. At the beginning of second grade, children were assessed on their working memory through forward and backward digit span tasks; their interference inhibition was assessed with the Stroop task; and their response inhibition was assessed via the Go/No-go task. Children’s socioeconomic status was assessed using their parents’ educational levels, occupational status, and Family Affluence Scale. The Chinese Rating Scale of Pupil’s Mathematics Abilities, which included subtests for addition, subtraction, number sequence, length estimation, and cube counting, was utilized to assess the children’s mathematical calculation, logical thinking, and spatial imagination abilities. We explored the main effects of socioeconomic status on children’s current and future mathematical abilities using structural equation modeling and simultaneously developed multiple mediation models to investigate how executive functioning components mediate these relationships. The results indicated that the three types of mathematical abilities in second graders showed significant improvement over the 20-month period; socioeconomic status in the second grade directly predicted mathematical abilities at the same grade level; and socioeconomic status could indirectly predict mathematical calculation abilities in the second grade and logical thinking abilities in the third grade through the mediating role of working memory. It is concluded that the present study extends previous research that has explored the mediation role of executive functioning between socioeconomic status and mathematical ability, demonstrating that working memory is a crucial cognitive factor that contributes to the explanation of this mechanism. It provides a scientific basis for educational and research professionals to develop interventions aimed at enhancing the mathematical abilities of children from lower socioeconomic backgrounds.
Peer Review Status:
Awaiting Review
Subjects: Psychology >> Other Disciplines of Psychology submitted time 2024-04-23
Abstract： With the rapid development of economy and society, human beings have put forward higher requirements for the living environment. Environmental conditions are closely related to human psychological activities,have a direct impact on human physical and mental health and economic benefits by intervening in human physical and mental health and economic benefits. Environmental psychology is committed to studying the relationship between environment and human system, exploring the law between people’s thinking, behavior and emotion and environmental materials in different social cultures and environments, and reveals the relationship between human activities and their surrounding environment, so as to seek a sustainable model of mutual adaptation to human and the environment. In order to explore the development of environmental psychology This paper puts to use CNKI database as the research object, uses CiteSpace bibliometry to objectively analyze the relevant literature of environmental psychology, and discusses the research status, research popular projects and development trend of environmental psychology. The results show that: 1) environmental psychology will continue to develop in the direction of people-oriented and steadily embark on the road of humanization, emotional value and spiritual experience; 2) the relevant theories and methods of environmental psychology will be applied to landscape design to optimize environmental quality and promote the coordinated development between people and environment; 3) environmental psychology examines people’s psychological quality and psychological problems under different social environment conditions, which can provide a reference value for improving ideological education and maintaining mental health.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Social Psychology submitted time 2024-04-23
Abstract： ChatGPT has emerged as a key technology shaping daily life and influencing future developments. The younger generation perceives and understands this representative AI product reflects their technological outlook, which will directly impact the future technological landscape in our country. This study utilizes the Weibo platform to access online discourse related to ChatGPT, analyzing the contemporary youth’s technological perspectives and underlying development views from the dimensions of language, emotion, and theme. The research reveals that young individuals tend to scrutinize ChatGPT from a practical and utilitarian perspective, maintaining an optimistic and reflective stance towards its development and application. They actively deconstruct technological logic for knowledge transformation, emphasizing the enhancement of individual capabilities through human-technology interaction while also considering the economic utility of technology. Faced with technological challenges and international disputes, the youth are both vigilant and hopeful for their country’s technological rise. As both practitioners and future leaders in technology, the younger generation plays a crucial role. This study aims to deepen our understanding of the current technological perspectives of the youth and provide valuable insights and recommendations for future technological innovation and youth education.
Peer Review Status:Awaiting Review
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