Search

Self-centering buckling-restrained braces (SCBRB) have demonstrated favorable self-centering capacity and energy dissipating capacity. The seismic performance of a steel frame buildings with SCBRBs (BRBF) should be investigated through relevant study. The proper relationship between the stiffness of the main structure and that of the braces should be investigated，and the proper relationship between the energy dissipating system and the self-centering system of the SCBRBF is also worth studying, both through structural parametrical study. All the steel structures are designed according to Chinese codes. Then the hysteretic model of the SCBRBF is proposed and the prototype model of the SCBRBFs is realized in FEA software ANSYS. The seismic performance of BRB frame (BRBF) and SCBRBF has been compared. The effects of the stiffness ratio of braces to main structures (αB/M), the stiffness ratio of selfcentering system to energy dissipating system (αc) and the strength ratio of the self-centering system to the energy dissipating system (β) on the overall seismic response have been studied. It shows that SCBRBF can minimize both the residual and maximum displacement compared with the BRBF. It can be concluded that residual deformation can be reduced with αB/M; less deformation can be expected with largerp or larger ac. In the initial design, αB/M, and ac are recommended to be 3, 0.5-0.9 and 0.5，respectively. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Signal Processing is the property of Journal of Signal Processing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Sciencepaper is the property of China Sciencepaper and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to meet the need of engineering construction, the domestic sand pile ship experienced two generations of development from introduction and imitation to independent research and development. The new sand pile ships can carry out compaction sand pile foundation treatment 66 m under water to improve the production process, the pile diameter can reach 2 m and the replacement ratio of composite foundation can be up to 70 %. Due to its better operability, efficiency and environmental protection, the equipment is successfully applied to the construction of Yangshan deepwater port and Hongkong-Zhuhai-Macao Bridge island & tunnel project and the effect is good. [ABSTRACT FROM AUTHOR]

Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

生理性起搏是近年来心脏起搏技术的发展方向，其中希氏（Ｈｉｓ）束起搏是较理想的 心室生理性起搏方式。目前尚无永久性Ｈｉｓ束起搏技术的操作标准，有学者使用双极或４极 导管标测Ｈｉｓ束电位，但存在Ｈｉｓ束电位标测不精确或识别困难，影响手术成功率。现报道在 多极导管标测指导下成功进行的Ｈｉｓ束起搏一例。 [ABSTRACT FROM AUTHOR]

Experiments were done to study and compare the liquid of different physical properties flow in the heat exchange pipes of different diameters. And an effective method was proposed to choose heat pipe diameter according to the physical properties and working conditions. Ethylene glycol aqueous solution with different ratio whose density, viscosity, surface tension and other properties were different were taken as experimental liquid and flowed in the vertical tube. Observing the falling film flow process, and considering the liquid film thickness and other factors, the best film flow was selected. A non dimensional parameter was proposed. The parameter is related to the viscosity, surface tension, and velocity of the liquid. A more stability flow and a more uniform film can be observed when the parameter ranges in 8.8×10-2-10.2×10-2. The engineering application of the method was also carried out in present work. The method can provide certain directive significance to the design of falling film evaporator. [ABSTRACT FROM AUTHOR]

Copyright of Jianzhu Cailiao Xuebao: Journal of Building Materials is the property of Journal of Building Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Clay soils with subsurface drip irrigation are often characterized by hypoxia. The addition of hydrogen peroxide to water to produce hydrogen peroxide oxygenated water, which is delivered to the root zone of crops via a subsurface drip irrigation system to increase soil oxygen levels, is a promising method of alleviating oxygen deprivation in the root zone. To explore the variation of dissolved oxygen concentration, oxygen transfer coefficient, surface tension coefficient, electrical conductivity and pH value with different hydrogen peroxide oxygenated water concentrations (H0-0 mg/L; H1-600 mg/L; H2-800 mg/L; and H3-1 000 mg/L), as well as the response of cumulative infiltration, depth of the wetting front and soil water content to hydrogen peroxide oxygenated water concentrations, two trials were carried out in 2021 at the State Key Laboratory of Eco-hydraulics in Northwest Arid Region at Xi'an University of Technology, China. The results of the study showed that H2O2 significantly increased the concentration of dissolved oxygen in water and the concentration of dissolved oxygen increased with increasing concentration of H2O2 added. Dissolved oxygen concentration was significantly enhanced by 52.10%, 87.11% and 126.59% in H1 to H3 treatments, respectively, as compared to the H0 treatment. The increase in H2O2 concentration decreased the oxygen transfer coefficient and inhibited the oxygen transfer process. Oxygen transfer coefficient was significantly increased by 65.17% in the H1 treatment as compared to the H3. The surface tension coefficient decreased significantly with increasing H2O2 concentration. The surface tension coefficients in H1 to H3 treatments were significantly reduced by 17.72%, 23.57% and 31.60%, respectively, compared to the H0 treatment. Electrical conductivity showed an increasing trend with increasing concentration of H2O2 addition, but the difference between H0 and H1 treatments was not significant (P＞0.05). Electrical conductivity was significantly higher in H2 and H3 treatments by 6.60% and 10.42%, respectively, as compared to the H0. The change in pH showed an opposite trend to electrical conductivity, with pH showing a decreasing trend with increasing concentration of H2O2 added. There was a good logarithmic function relationship between dissolved oxygen concentration and surface tension coefficient, and the two could be used as a quantitative evaluation indicator of the physicochemical properties of hydrogen peroxide oxygenated water. Compared to the control, hydrogen peroxide oxygenated water facilitated the process of soil water infiltration and increased the water holding capacity of the soil. The cumulative infiltration showed a trend of increasing and then decreasing with increasing H2O2 addition concentration. Cumulative infiltration was significantly increased by 14.50%, 29.98% and 16.64% for H1 to H3 treatments, respectively, compared to the H0 treatment. For the same infiltration time, the depth of the wetting front showed a tendency of increasing and then decreasing with the increase of H2O2 addition concentration. The depth of wetted fronts was significantly increased by 7.66%, 18.84% and 13.39% in H1 to H3 treatments, respectively, compared to the H0. The soil water content was significantly increased by 8.73% and 4.23% in H2 and H3 treatments, respectively, as compared to the H0. The Philip infiltration model was able to better simulate the infiltration process of hydrogen peroxide oxygenated water, and the soil sorptivity showed a tendency of increasing and then decreasing with the increase of the added concentration of H2O2, with the maximum value also appeared in the treatment of 800 mg/L. There was a good quadratic polynomial relationship between the soil sorptivity and the dissolved oxygen concentration. Considering the results of the study together, the recommended concentration of 800 mg/L of H2O2 was the optimal concentration under the test conditions. These results could provide a scientific foundation for the practical application of hydrogen peroxide oxygenated water and a theoretical guide for the efficient regulation of soil aeration. [ABSTRACT FROM AUTHOR]

目的探讨Ig A/C3对Ig A肾病的辅助诊断价值。方法选择Ig A肾病患者87例(Ig A肾病组),其他肾小球疾病患者30例(非Ig A肾病组)。检测两组血清Ig A、补体C3水平,计算Ig A/C3,并分析Ig A/C3对Ig A肾病的辅助诊断价值。采用牛津分级标准(即MEST)评估Ig A肾病患者的病情程度(≥3分为病情严重),分析Ig A/C3与Ig A肾病病理程度的关系。结果 Ig A肾病组血清Ig A水平及Ig A/C3明显高于非Ig A肾病组(P均<0.05),两组血清补体C3水平比较无统计学差异(P>0.05)。受试者工作特征(ROC)曲线分析显示,Ig A诊断Ig A肾病的曲线下面积(AUC)为0.807,敏感性为72%,特异性为88%;Ig A/C3诊断Ig A肾病的AUC为0.951,敏感性为93%,特异性为83%;Ig A/C3诊断Ig A肾病的敏感性高于Ig A(P<0.05)。以Ig A/C3ROC曲线的截断点为界,将Ig A肾病患者分为Ig A/C3≥1.66者55例、Ig A/C3<1.66者32例;结果显示,Ig A/C3≥1.66者MEST≥3分40例,Ig A/C3<1.66者仅16例,二者比较P<0.05。结论 Ig A/C3可用于辅助诊断Ig A肾病,并可作为Ig A肾病病理损伤程度的参考指标。 [ABSTRACT FROM AUTHOR]

In order to rapidly screen the key pathogenic genes of Verticillim dahliae, the random insertion mutant library was constructed by polyethylene glycol-mediated protoplast transformation. The growth phenotype and pathogenicity of partial positive transformants were analyzed to screen the growth, development and pathogenic defect mutants, and the target gene was located. The results showed that more than 13 030 positive transformants were obtained in this study, and five positive transformants were randomly selected. The colony diameter and spore production on PDA and different carbon source medium as well as pathogenicity of one mutant significantly decreased compared with V991 wild type strain. The results of flanking sequence sequencing and Blast alignment analysis demonstrated that the hygromycin resistance gene expression cassette in the defective mutant was located at 1 528 782 bp of chromosome 3 of V. dahliae, belonging to endoglucanase 1 gene （VDAG_04017）. Taken together, this study can preliminarily identify pathogenicity-related genes through a series of molecular biological technique, including the construction of insertion mutant library of V. dahliae, identification of the growth phenotypic indices and pathogenicity, and mapping of target genes so on, which lays a foundation for investigating the pathogenic mechanism of V. dahliae at the whole genome level. [ABSTRACT FROM AUTHOR]

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To explore the characteristics of delay discounting and non-systematic response data in intertemporal choice of adults with attention deficit hyperactivity disorder (ADHD), and to explore the best data processing strategy for delay discounting task. Methods: Totally 108 adults with ADHD meeting the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Health Disorder, Fifth Edition (DSM-5) and 87 gender matched normal controls were enrolled. ADHD symptoms were assessed using the ADHD Symptom Rating Scale, the delay discounting task was used to measure the delay discounting rate, and a model-free algorithm was used to identify non-systematic response data. Results: There was no significant difference in the proportion of non-systematic response data between ADHD group and normal control group (P > 0.05) . In the data sets using different data screening strategies, the delay discounting rates were higher in the ADHD group than in the normal control group (Ps < 0.05) . The delay discounting rates were positively correlated with the hyperactive impulse scores ( r = 0.24 P = 0.001 ), the inattention scores ( r = 0.2 P < 0.01 ) and the total scores of ADHD symptom Rating Scale (r = 0. 22, P < 0.01 ) . Conclusion: Adults with ADHD prefer to obtain immediate small rewards in intertemporal choice. The immediate preference of intertemporal choice may be mainly related to hyperactive impulsive symptoms. Exclusion strategy of non-systematic response data may be more applicable to delay discount task research. [ABSTRACT FROM AUTHOR]

This study focused on the NiCoCr entropy alloy powder produced by gas atomization, and 16 sets of Selective Laser Melting (SLM)forming process parameters were designed using the method of controlled variables. The influence of different process parameters on the density, microstructure, and mechanical properties of SLM-formed NiCoCr medium-entropy alloy were studied. A mathematical model for the influence of each process parameter on the density of the alloy was established using JMP software, and the main influencing factors of the microstructure and properties of the SLM-formed NiCoCr medium-entropy alloy were identified. The results show that the laser energy density has the greatest influence on the density of NiCoCr medium-entropy alloy, followed by the laser scanning speed and scanning interval, while the laser power has a smaller influence. The optimal process parameters for the NiCoCr medium-entropy alloy are: laser power of 263 W, scanning speed of 1 260 mm/s, and laser energy density of 87 J/mm³,with a corresponding sample density of 99. 69%,Vickers hardness of 308. 4HV0.5,and room temperature tensile strength, yield strength, and elongation of 616 MPa, 511 MPa, and 39%,respectively. [ABSTRACT FROM AUTHOR]

Objective To investigate the incidence probability and epidemiological characteristics of flat foot in school-age children （7～13 years old） in Kunming, and to provide the evidence for the prevention of flat foot. Methods The incidence of flat foot, age trend, male to female ratio, severity and the incidence of single and double foot of school-age children were analyzed by using the optical foot assessment recording device in the second primary school of Dianchi Resort, the fifth Primary School of Jingkai District, Guolin Primary School and Wenbi Primary School in Kunming. Results The overall incidence of flat foot in 4444 school-age children （7-13 years old） in Kunming was 29.1%. The incidence of flat foot in school-age children of different ages was statistically significant （χ² = 159.887, P < 0.001）. The prevalence was 36.91% at age 7 and 29% at age 13. The incidence of flat feet was 62.49% in boys and 37.51% in girls. There was a statistically significant difference in the incidence of flat feet between boys and girls （χ² = 63.886, P < 0.001）. The prevalence of flat feet in boys of all ages was higher than that in girls.The total incidence of flat foot in school-age children was divided into mild 21.79%, moderate 52.43% and severe 25.78% according to degree. The incidence of flat foot was 89.1% in bipedal type, and there was no statistical significance in the left and right type of flat foot （P > 0.05）. Conclusion The incidence of flat foot in school-age children aged 7-13 years decreases gradually with the increase of age. The incidence of flat foot in girls is lower than that in boys, and the incidence of flat foot in most children is moderate flat foot. For school-age children, flat feet should be prevented, detected and treated as early as possible. [ABSTRACT FROM AUTHOR]

The major challenge in accurately determining ultratrace gold in high-purity graphite is how to achieve effective separation and high enrichment of it (0.1−1ng/mL) in the sample solution, while minimizing the secondary pollution introduced by vessels, reagents, materials, environment, and equipment during the sample pretreatment process. A new method for the analysis of ultratrace gold in high-purity graphite is established by ashing and acid dissolution in a platinum dish, followed by microextraction with a hanging droplet of tributyl phosphate. Firstly, the fixed carbon in the sample was removed by high-temperature burning in a platinum vessel; then, the ash was completely dissolved into a sample solution using hydrofluoric acid-aqua regia-perchloric acid; next, micro-upgraded tributyl phosphate droplets were used as an extractant to separate and enrich gold from the sample solution; finally, gold in the droplets was determined using high-resolution continuum source graphite furnace atomic absorption spectrometry. The experimental results showed that by using 2.5μL of tributyl phosphate (chloroform volume fraction 20%) as the extractant, gold can be extracted from a sample solution in 10% hydrochloric acid medium for 2min, and the enrichment factor for gold can reach up to 283 times. Under the selected experimental conditions, the mass concentration of gold showed a good linear relationship with its absorbance values in the range of 0.1 to 2.0ng/mL. The correlation coefficient (r) was 0.999, and the detection limit of the method was 0.11ng/g. Interference tests showed that the presence of certain coexisting elements such as sodium, magnesium, and aluminum in the sample solution had no effect on the determination of gold. According to the experimental method, the gold content in five high-purity graphite samples was measured. The relative standard deviation (RSD, n=6) of the results was 1.5%−4.9%, and the recovery rate was 94.9%−105.3%. [ABSTRACT FROM AUTHOR]

In order to alleviate the contradiction between agricultural economic development and ecological protection in the oasis of Manas River basin, the thesis quantified the spatial and temporal distribution characteristics of carbon stock (CS), water yield (WY), and soil retention (SR) services by using the InVEST model, based on which we analyzed the tradeoffs between the changes of ecosystem services (ESs) . Multi-scale geographically weighted regression (MGWR) model was used to analyze the spatial relationships between ecosystem changes and their trade-offs and drivers were revealed. The results were as follows：from 2000 to 2015, cropland and built-up land area increased by 50.81% and 91.95%, and unused land and grassland decreased by 16.88% and 6.71%. CS and WY increased by 4.76% and 37.12%, while SR decreased by 9.94%. The trade-off relationship between CS, SR, and WY was heterogeneous in spatial distribution, and ESs tradeoffs high-value regions were mountainous area in the south. The intensity and properties of the correlation between the changes and tradeoffs of ESs and influencing factors were heterogeneous in spatial distribution, and dynamic degree of comprehensive land use changes, vegetation coverage changes, and soil organic carbon are the main driving factors of the changes and tradeoffs of ecosystem services. The study suggests that planting grassland in the mountainous areas of the Manas River basin and establishing water resource protection zones in the oasis areas while increasing the investment in oasis agricultural science and technology are effective ways to promote the sustainable supply of ecosystem services and alleviate the contradiction between oasis agricultural development and ecological protection [ABSTRACT FROM AUTHOR]

基因治疗逐渐成为治疗遗传病、自身免疫性疾病和肿瘤等疾病的重要手段。近年来, 人 们一直致力于开发高效的基因传递载体以克服各种生理和系统性障碍。壳聚糖具有天然抑菌、止血 和促进伤口愈合的能力, 以及良好的生物相容性和生物降解性, 已被用于药物递送系统以及制造与伤 口愈合相关的基因传递系统的候选材料, 其亦已被用作各类基因载体为各类难治性疾病的治疗提出 新方向, 比如作为小干扰RNA载体用于癌症的联合治疗, 作为微RNA载体促进糖尿病大鼠皮肤创面 愈合等。笔者对壳聚糖载体基因治疗在临床应用上的研究进展进行综述。. [ABSTRACT FROM AUTHOR]

[Objective] To improve the overall moderation efficiency of the sunbaked yellow tobacco moderation sheds in order to achieve higher quality sunbaked yellow tobacco production. [Method] In this study, different modifications were explored through a systematic experimental setup. By monitoring the light intensity and SPAD values during the modulation process, we compared the appearance quality and chemical composition of sunburnt yellow cigarettes of different modulation methods, aiming to select the most superior modulation method. [Result] Sunburnt yellow tobacco modulation shed suitable modulation is the smoke folded longitudinal hanging, drying spacing of 20cm. This treatment received the strongest light intensity and the degradation trend of SPAD value was consistent with CK. Through this modulation, the appearance quality of sunburnt yellow tobacco showed loose leaf structure, good surface oiliness, better elasticity, and moderate identity; the color of tobacco leaf was mainly distributed in the domain of positive yellow to golden yellow, with uniform chromaticity, glossy and plump, and the leaf surface contained less green.The chemical composition also showed a more desirable state, with relatively high contents of total sugar (18.8%), reducing sugar (14.9%) and potassium (1.85%), while the contents of chloride ions and nitrogen-alkali ratio were appropriate. [Conclusion] The results of this study provide a strong guidance for sunshine yellow tobacco modification, and provide a scientific basis for realizing efficient and high-quality sunshine yellow tobacco production. [ABSTRACT FROM AUTHOR]

Objective: To explore the characteristics of parental emotional regulation (ER) and its influence on the ER of children with attention deficit hyperactivity disorder (ADHD). Methods: A total of 140 children with ADHD meeting the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria and their parents, 68 normal controls and their parents were recruited. ER was assessed using the Difficulties in Emotion Regulation Scale(DERS), Emotion Regulation Questionnaire (ERQ) and Emotion Regulation Checklist (ERC). Results: Higher scores of DERS in emotion regulation strategies, impulse control and goal-directed behavior were found in parents of children with ADHD compared with parents of normal controls (Ps <0.05). The higher emotional lability (EL) of ERC and lower ER of ERC detected in children with ADHD were correlated with the emotion regulation strategies, impulse control and goal-directed behavior of their parents (Ps <0.01). The mediation analyses suggested that ER in children with ADHD may mediate the relationship of parental emotion regulation strategies and parental impulse control with children's EL. Conclusion: Parents of children with ADHD may exhibit emotional dysregulation in multiple subdimensions which might affect emotional regulation and aggravate the emotional lability of the children with ADHD. [ABSTRACT FROM AUTHOR]

The long-term survival rate of patients with hepatocellular carcinoma (HCC) is poor, and drug efficacy is an important factor affecting clinical prognosis. N6-methyladenosine (m6A) modification is the most abundant modification in eukaryotic RNA, which can affect the occurrence and development of HCC and drug efficacy by regulating cancer-related biological functions. However, the role of m6A modification in HCC drug treatment has not been fully elucidated. Therefore, the biological functions of different regulatory members of the m6A modification process (methyltransferase, demethyltransferase and binding protein) in HCC drug treatment were illustrated, proposing that regulatory members of the m6A modification process can be used as biomarkers for HCC prognosis evaluation and have the potential to become therapeutic targets and providing novel insights for HCC precision medicine. [ABSTRACT FROM AUTHOR]

Pressure injury is one of the most common complications in long-time bedridden patients, and it is an important sensitive index of clinical nursing quality. This study introduces the design and use method of a utility model nursing pad for prevention of pressure injuries, which can increase the comfort and breathability of patients, reduce the work burden of medical staff and improve work efficiency. (压力性损伤是临床长期卧床患者最常见的并发症之一, 压力性损伤的发生率是临床护理质量的重要敏感指标。本研究介绍了一款实用新型防压疮护理垫的设计和使用方法, 具有良好的舒适和透气性, 护理垫便于换洗, 且能够辅助患者进行翻身, 有助于提高护理人员工作效率。)

To reveal the level and variation characteristics of China ′s grain production eco-efficiency, this paper estimates the grain ecoefficiency of 30 provinces from 2000 to 2021 based on the super-efficiency SBM model, reveals its evolution characteristics through nonparametric kernel density analysis, and analyzes its influencing factors through fixed effect model. The results show that: from the perspective of grain eco-efficiency level, China ′s grain eco-efficiency increased from 0.662 to 0.787 from 2000 to 2021, with an average annual increase of 0.827%. The change trend of grain eco-efficiency in the main production area and the production and marketing balance area is similar to the national level, while the main sales area is far lower than the national average; from the perspective of the evolution of spatial and temporal patterns, China ′ s grain eco-efficiency has long been polarized between high-high agglomeration and low-low agglomeration, and has gradually gathered to a higher level over time, showing the characteristics that the north is higher than the south, and the major producing areas are higher than the non-main producing areas. Among the influencing factors, the influence of per capita GDP and grain operation scale is significantly positive, and the influence of chemical fertilizer application intensity, agricultural machinery intensity and natural disasters is significantly negative. The research shows that the overall level of China ′s grain eco-efficiency is still low and the regional gap is large. Most provinces have not reached the efficiency frontier, and there is a large room for improvement. [ABSTRACT FROM AUTHOR]

Objective: This study is to investigate the relationship of parental anger expression and symptoms in children with oppositional defiant disorder (ODD). Methods: Forty-six children with ODD and 46 age-gendermatched normal children participated. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), guided the diagnoses. Parental anger expression and children's anger management were assessed using the State-Trait Anger Expression Inventory-2 and Children Emotion Management Scales. Results: ODD symptoms were directly predicted by maternal anger index (AI) (β = 0. 13, P<0.05) and anger expression-out(AX-O) (β = 0. 25, P <0.05). Children's anger cope (AC) played a mediating function to maternal AI through ODD symptoms, occupying 13% of the total effect; their AC and anger dysregulation (AD) played a mediating function to maternal AX-Othrough ODD symptoms, accounting for 29% and 18% of the total effect, respectively. Conclusion: It suggests that anger cope and anger dysregulation in children with oppositional defiant disordermay may play a mediating role between maternal anger expression and oppositional defiant disorder symptoms. [ABSTRACT FROM AUTHOR]

旨在为河南省食品安全风险监测提供参考，对河南省市售的205份食用植物油中3-氯-1，2-丙二醇酯(3-MCPD酯)和2-氯-1,3-丙二醇酯(2-MCPD酯)的污染状况进行调查分析。结果显示：205份食用植物油中，3-MCPD酯污染水平高于2-MCPD酯，其中3-MCPD酯检出率为79.0%，均值为1.83 mg/kg，中位值为1.30 mg/kg；大豆油的3-MCPD酯检出率最高，为93.3%，中位值为1.72 mg/kg，其次是花生油，检出率为89.2%，中位值为1.06 mg/kg，橄榄油的3-MCPD酯和2-MCPD酯污染水平最低；2021年食用植物油中3-MCPD酯、2-MCPD酯检出率均高于2020年；城市、农村人群经由食用植物油摄入3-MCPD酯健康风险较低。不同食用植物油氯丙醇酯的污染水平差别较大，虽然居民经食用植物油摄入3-MCPD酯健康风险较低，但需要继续加强监测。In order to provide reference for food safety risk monitoring in Henan province, the pollution status of 3-chloro-1,2-propanediol(3-MCPD) ester and 2-chloro-1,3-propanediol(2-MCPD) ester in 205 edible vegetable oils sold in Henan province was investigated and analyzed. The results showed that the pollution level of 3-MCPD ester was higher than that of 2-MCPD ester in 205 edible vegetable oils. The detection rate of 3-MCPD ester was 79.0%, with an average value of 1.83 mg/kg and a median value of 1.30 mg/kg. The detection rate of 3-MCPD ester in soybean oil was the highest (93.3%), and the median value of 3-MCPD ester was 1.72 mg/kg. The second was peanut oil, the detection rate was 89.2%, and the median value was 1.06 mg/kg. Olive oil had the lowest pollution levels of 3-MCPD ester and 2-MCPD ester. The detection rates of 3-MCPD ester and 2-MCPD ester in edible vegetable oil in 2021 were higher than those in 2020. The health risk of 3-MCPD ester intake through edible vegetable oil in urban and rural populations was low. The pollution levels of different edible vegetable oils vary greatly, and although the health risk of residents ingestion of 3-MCPD ester through edible vegetable oils is low, it needs to continue to strengthen monitoring.

Residential HVAC systems typically constitute a substantial portion of energy consumption and exert a significant influence on occupants thermal comfort. At present, reinforcement learning is widely employed to optimize HVAC systems; however, this approach necessitates a substantial investment of time and data resources. To address this issue, this paper pro- posed a novel framework based on an event-driven Markov decision process (ED-MDP) and further introduce an event-driven deep deterministic policy gradient(ED-DDPG) method. This approach amalgamated reinforcement learning algorithms to de- duce optimal control policies through event-triggered optimization. The experimental results demonstrate that ED-DDPG excels in enhancing learning speed and reducing decision frequency compared to the benchmark method. Furthermore, it attains notable accomplishments in energy conservation and sustaining thermal comfort. Following comprehensive testing and validation, the method showcases robustness and adaptability in optimizing residential HVAC control. [ABSTRACT FROM AUTHOR]

This paper summarized the prone position ventilation and nursing management for a patient with influenza A (H1N1)virus infection combined with hypermucoviscous Klebsiella pneumoniae infection. Key issues of nursing included: a comprehensive nursing assessment before prone position ventilation, and considering the beginning and ending points of ventilation to ensure the safety of the treatment; Appropriate patient turning, catheter maintenance and skin care during treatment period; The analgesic management by using Richmond Agitation and Sedation Scale (RASS) and Sedation-Agitation scale (SAS) to improve patient comfort and effective ventilation; enhancing the airbag pressure management to prevent the ventilator-associated Pneumonia (VAP); observation on reflux, aspiration and gastric residual volume and ensuring nutrition support; monitoring on infection indexes to prevent catheter-related infection. (总结1例甲型H1N1流感病毒感染合并高黏液型肺炎克雷伯菌感染患者俯卧位通气的护理体会。护理要点: 做好患者的评估, 正确掌握俯卧位通气开始及结束的时机, 保证治疗的安全有效; 根据患者病情, 选择合适的翻身方式, 保护各管路, 做好皮肤护理; 运用Richmond躁动-镇静量表(RASS)和镇静-躁动评分(SAS)评分, 做好镇痛镇静管理, 提高患者的舒适度, 保障有效通气。做好气囊管理, 预防呼吸机相关性肺炎(VAP)的发生。观察患者有无反流及误吸, 做好胃残余量的监测, 保证营养供给。监测感染指标, 预防导管相关感染。)

Objective: To investigate the difference in time perspective between adults with attention deficit hyperactivity disorder (ADHD) and normal controls, and to explore the relationship between time perspective and ADHD symptoms. Methods: Eighty-five adults aged from 18 to 35 years with ADHD who met the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), and 85 age-and sexmatched normal controls aged from 19 to 34 were enrolled The ADHD Rating Scale (ADHD-RS) and Zimbardo Time Perspective Inventory (ZTPI) were used to evaluate ADHD symptoms and time perspective in all subjects independently. Results: Compared to the control group, adult ADHD had higher scores of past negative, present hedonistic and present fatalistic and lower scores of past positive and future (Ps ＜0. 001). The inattention (IA) scores in female patients and those with predominant inattention subtype were negatively correlated with the ZTPI scores of future (r=-0. 70, -0. 65, Ps ＜0. 001). The hyperactivity and impulsivity (HI) scores in males with ADHD and those with combined subtype were positively correlated with the present hedonistic scores (r=0. 41, 0. 42, Ps ＜0. 05). The scores of past negative were higher in those with comorbidities than in those without comorbidities and positively correlated with the scores of IA and HI (Ps ＜0. 01). Conclusion: The time perspective of adult ADHD is biased and imbalanced, and its level of deviation from balanced time perspective is positively correlated with the severity of ADHD symptoms, and is influenced by gender, subtypes, and comorbidities. [ABSTRACT FROM AUTHOR]

A high-rise base isolated building in Xichang (seismic intensity of 9) is taken as prototype. The upper-structure employs frame-core tube form with a total height of 58.3m using lead rubber bearings as isolators. Shaking table test on a model structure with a similitude ratio of 1/15 was conducted to investigate the performance of the isolated structure under earthquake. Results illustrate that the isolation floor reduces acceleration response of upper-structure remarkably, and the amplification coefficient of the isolation layer is smaller than 0.5 which meets the requirement of decreasing one degree of seismic intensity for structural design. Horizontal displacement concentrates on isolation layer, thus story displacement is comparatively smaller and inter-story drift meets the limitation requirement in Chinese code. Besides, the full hysteretic loops of isolation layer indicate good ductility and energy dissipation property. However, under strong earthquake, tensile stress occurs in the bearings, which reveals the risk of overturning. After installation of tension-resistant device for bearings in the corner,the following experiment results reveal that this device would not pose significant effect on the horizontal mechanic properties of the structure and the regular vertical and horizontal motion of the bearing under compression state. And the tension resistant effect of the device when the bearing is under tensile state is proved by comparison results. [ABSTRACT FROM AUTHOR]

A novel form of tension-resistant device for isolator was invented to solve the problem of tensile stress in rubber bearings and overturning problem for high-rise isolated structures under strong earthquakes.Series experiments were conducted to verify its workability. Results of cyclic load test of prototype device illustrate that the tension-resistant device would barely influence the horizontal mechanical property of bearing on compression-shear condition. Besides, the device can work well to protect bearing on tension-shear condition, so that the horizontal mechanical property can be guaranteed. Tensile stress in bearing itself can be limited because most of the tensile force would be undertaken by the device. Furthermore, quasi-static tests on model devices were conducted to verify that the model device can also be effective on tension resistance and would not influence the horizontal mechanical properties on compression-shear condition. And the devices can also realize the perspective effect of diminishing the tensile stress and restraining the maximum displacement. [ABSTRACT FROM AUTHOR]

As an indispensable source of energy supply in cities, natural gas station has certain risks in the operation process. Based on the leakage of natural gas stations caused by fire, explosion and other accidents and disasters, with regard to the analysis of the selection of existing gas-related laws, regulations, standards, and other indicators, and the full reference and analysis of the existing research results at home and abroad, the framework structure of natural gas station explosion risk assessment index system was formed with the aim of natural gas station explosion, 4 primary indexes such as staff, organization and management, failure and ignition source, 14 secondary indexes and 46 tertiary indexes. The reliability and validity of the index system were evaluated by using research questionnaires and statistical analysis software to quantitatively analyze the explosion index system. The fuzzy hierarchical analysis process was applied to calculate the weights of each index of the assessment index system to establish a risk assessment model for natural gas stations, a natural gas station in Shaanxi Province was used as the object of the risk assessment of explosion, to evaluate the risk and verify the effective practicality of the proposed mathematical model, providing a basis for the prevention, control and safety management of natural gas field stations in terms of flaring and explosion accidents. [ABSTRACT FROM AUTHOR]

Objective　 To investigate the association between the genotype and gene frequency of the rs12129861 (A/G) locus in the promoter region of the PDZ protein kinase 1 (PDZK1) gene and the incidence of gout in Xinjiang Han male population. Methods　 Blood samples of Han male gout patients (gout group) and healthy subjects (control group) at the same period were collected, and the genotypes of rs12129861 (A/G) locus in PDZK1 gene promoter region were detected by multi-fluorescence PCR. The genotype distribution and gene frequency of rs12129861 (A/G) locus and serum uric acid concentration of population with different genotypes at rs12129861 (A/G) locus were compared between the two groups. KpnI and XhoI double digestion sites were selected to construct the pGL3-promotor luciferase expression vector containing rs12129861 (A/G) site. Double luciferase reporter gene assay was used to confirm whether rs12129861 (A/G) site in the promoter region affected luciferase gene expression. Results　 The genotype distribution of rs12129861 (A/G) locus in the promoter region of PDZK1 gene was consistent with Hardy-Weinberg balance test (P>0. 05), and the stable inheritance of this locus was population representative. There were statistically significant differences in the distribution frequencies of AA, GA and GG genotypes at rs12129861 (A/G) locus in PDZK1 gene promoter region between the gout group and control group( χ²=14. 633, all P<0. 01), the difference of allele A and G distribution frequency was statistically significant (χ² = 14. 236, P<0. 01), the distribution frequency of allele G in the gout group was higher than that in the control group, and the OR value was 1. 661. Significant difference was found in the serum uric acid concentration be⁃ tween the population with genotype A/A and genotype G/G, and between the population with genotype G/A and genotype G/G at rs12129861 (A/G) locus (both P<0. 05). The serum uric acid concentration of G/G genotype was higher than those of A/A genotype and G/A genotype. The results of double luciferase assay showed that rs12129861 (A/G) had en⁃ hancer function, and the luciferase reporter expression level of rs12129861 (G) was lower than that of rs12129861 (A) (P<0. 05). Conclusion　 The genotype and gene frequency of rs12129861 in the promoter region of PDZK1 gene are as⁃ sociated with gout in Xinjiang Han male population, and allele G may be a risk factor for gout. [ABSTRACT FROM AUTHOR]

In order to avoid the instability of arch in thermal environment, the nonlinear in-plane instability of a fixed circular arch under a central radial concentrated load in thermal environment was studied. The nonlinear equilibrium equations and buckling equilibrium equations were derived by the minimum potential principle. The theoretical solutions of the limit buckling and bifurcation buckling loads were then obtained and verified by the ANSYS software finite element results. The nonlinear limit point instability and the bifurcation instability behavior of the arch was investigated. The results show that the temperatures have a significant effect on the nonlinear instability behavior of an arch. The limit instability loads and bifurcation instability loads increase with the rise of the temperature. The upper and lower limit point instability loads decrease with a decrease of the modified slenderness. It is also found that the maximum temperature difference for bifurcation bucking decreases rapidly with the increase of the slenderness. [ABSTRACT FROM AUTHOR]

Agricultural drought has been one of the most damaging natural hazards in the world, due mainly to the water shortage. A timely and effective monitoring system can greatly contribute to the management and mitigation of agricultural drought for better crops yields. A drought index can be further used to support the agricultural drought monitoring, assessment, and decision-making on mitigation measures. Therefore, it is a high demand to determine the real drought and monitoring index in practice. Taking the Shandong Province in eastern China as the research area, this study aims to construct a new agricultural drought monitoring model by random forest using the Crop Water Stress Index (CWSI). A deviation correction was also used to construct the Bias-corrected Random Forest Drought Condition Index (BRF-DCI). The physical meaning of evapotranspiration data was elucidated in the occurrence of agricultural drought. The multisource remote sensing was selected, including the Vegetation Condition Index (VCI), Precipitation Condition Index (PCI), Temperature Condition Index (TCI), Soil Moisture Condition Index (SMCI), and Standardized Precipitation Evapotranspiration Index (SPEI). The accuracy of the model was evaluated by the determination coefficient, and root mean square error. Since the study area presents the warm temperate continental monsoon climate with large temporal and spatial changes in the precipitation, some considerations were made on the influence of evapotranspiration on the drought monitoring model, as well as the accuracy and application of drought condition index for different drought grades. The results were as follows: 1) A better performance was achieved, when adding the CWSI as the independent variable into the drought monitoring model, where the determination coefficient of the BRF-DCI index and the observed SPEI-3 was 0.72-0.85, and the root mean square error was 0.58-0.71. 2) The BRF-DCI index with CWSI improved the accuracy of extreme drought monitoring, where the maximum monitoring accuracies of moderate, severe, and special drought were 0.88, 0.89, and 0.91, respectively. As such, the CWSI independent variable significantly improved the accuracy of the model, particularly for the extreme drought monitoring. 3) The drought monitoring index was basically consistent with the drought trend, represented by the real SPEI-3 at different sites, suitable for the changing of the actual drought. 4) The simulation of historical drought using drought condition index was also basically consistent with the actual in the study area. Consequently, the BRF-DCI can be widely expected to accurately predict the drought-affected areas with the temporal and spatial evolution. This finding can provide an important reference to evaluate the agricultural drought monitoring index for the early warning of natural hazards.. [ABSTRACT FROM AUTHOR]