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Copyright of Evaluation & Analysis of Drug-Use in Hospitals of China is the property of Evaluation & Analysis of Drug-Use in Hospitals of China Editorial Board 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.)

Homeostasis between the host and viruses is naturally maintained. On the one hand, the immune system activates the immune response to kill or eliminate viruses; on the other hand, the immune system controls the immune response to maintain immune homeostasis. The cause of persistent infections with hepatitis viruses such as HBV and HCV is that viral molecules damage the immune system of the host and their variants escape immune clearance. Long - term coexistence of the host and viruses is the process involving various immune cells and molecules and is the result of homeostasis maintenance in antiviral immune response. The immune homeostasis maintained during persistent infections with hepatitis viruses is analyzed by the cellular and molecular mechanisms. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Lung Cancer is the property of Chinese Journal of Lung Cancer 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 analyze the clinical features and etiological pattern of splenic abscesses to guide future diagnosis and treatment. Methods: A retrospective analysis was conducted for the patients with splenic abscess who were treated at Tangdu Hospital, the Air Force Medical University from April 2009 to July 2021. The demographic data, laboratory results, radiological findings, etiology, and outcome were collected. Descriptive analysis was conducted. Results: A total of 25 patients were included in this analysis. The male/female ratio was 4 ∶ 1 with a mean age of（48.8±18.1) years. 20（80 %) patients had one or more underlying diseases, including Type 2 diabetes mellitus, biliary disease, cardiovascular disease, previous abdominal surgery, tumor, liver cirrhosis, and AIDS. The course of the disease varies from a few days to several years. Fever was the first clinical symptom, followed by upper left abdominal pain and digestive symptoms. Etiological pathogen was identified in 11 cases, and a total of 11 kinds of bacteria were cultured. The results showed that escherichia coli took up the top, including 7 kinds of Gram-negative bacteria and 4 kinds of Gram-positive bacteria. 23patients had splenic abscesses complicated with other diseases. Laboratory tests showed elevation of white blood cell and neutrophils percentage, as well as C-reactive protein and procalcitonin increased. All 25 patients were diagnosed by radiological findings. All 24patients were treated with effective antibiotics for anti-infective therapy, among which 5 patients were treated with PCD (percutaneous catheter drainage), 1 patient underwent splenectomy, and 1 patient underwent perisplenic abscess debridement. 1 patient was discharged from hospital without treatment after being diagnosed, 2 HIV patients died eventually, 2 patients were discharged voluntarily after repeated treatment with poor results, and the remaining 20 patients improved or were cured. Conclusions: Splenic abscess is more common in elderly men. Underlying disease was identified in most cases. Patients with diabetes mellitus, biliary disease, cardiovascular disease, previous abdominal surgery and tumor are at high risk of splenic abscesses. The prognosis is poor in HIV patients with splenic abscess. Gram-negative bacteria were the main pathogens, and escherichia coli was the most common. The diagnosis could be confirmed by radiological findings. Early treatment is reasonable selection of antibiotics combined with PCD or surgical treatment. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Practical Electrocardiology is the property of Journal of Practical Electrocardiology Editorial Board 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 Journal of Practical Electrocardiology is the property of Journal of Practical Electrocardiology Editorial Board 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.)

Ecological product value realization is a product of the transition from industrial civilization to ecological civilization, embodying the critical practice of the concept that 'lucid waters and lush mountains are invaluable assets.' However, in China, the exploration and theoretical research on ecological product value have predominantly focused on value transformation, overlooking the aspect of sustainable realization. This oversight has resulted in unsustainable trends in areas such as conceptual understanding, conservation and restoration, industry development, inter-departmental collaboration, and value sharing. Sustainable ecology plays a pivotal role in realizing the value of ecological products by addressing the conflicts between human socio-economic activities and natural ecosystems and by exploring feasible paths for their coordinated development. This study, based on the three-dimensional evaluation system of sustainable ecology, which includes development, coordination, and sustainability, adopts a combination of text analysis and case study methods. The study also constructed a theoretical framework that integrates the intrinsic logic of the society-economy-nature complex ecosystem and comprehensively considers the three key elements of quality, dynamics, and equity. This framework places particular emphasis on the entire process of ecological product value realization, adhering to three fundamental principles: at the front, it closely aligns with the 2030 United Nations Sustainable Development Goals (SDGs) to ensure synchronization with the global sustainable development agenda; at the middle, it respects regional diversity and integrates local practices with the transformation of ecological product value; and at the end, it achieves equitable value sharing, connecting with a sustainable and fair social system to ensure intergenerational equity. To promote the sustainable realization of ecological product value, this article proposes foundational ideas from the perspective of sustainable ecology, focusing on three dimensions: deeply excavating dynamic elements to support healthy development, focusing on quality elements to mobilize multi-party coordination, and considering equity elements to ensure intergenerational balance. These strategies provide a scientific basis for promoting the sustainable realization of ecological product value, advancing the construction of ecological civilization, and achieving a modernization of harmonious coexistence between humanity and nature. [ABSTRACT FROM AUTHOR]

This paper introduced the design and application of a disposable container for 24-hour urine collection. This disposable container was designed to reduce the risk of infection, reduce the occupational exposure and improve the accuracy and convenience in 24-hour urine collection. The use of disposable container may also help to improve indoor air quality and patient comfort during hospitalization. (本文介绍一种一次性24小时尿液标本收集器的设计和应用。该设计能够降低感染风险, 更好地保护医护人员, 帮助医护人员更精确地留取标本, 更便捷地收取标本, 同时有助于提升室内空气清新度, 提升患者住院期间的舒适度。)

The vibration frequency, vibration mode and wave propagation characteristics of the oscillator system are discussed when the spring mass is considered. The vibration characteristics of the vibrator are mainly determined by the first⁃order vibration mode for the spring with great mass. When the spring mass is considered, the motion of each point cannot completely repeat the motion of the previous cycle, which indicates that the spring vibrator is not pure harmonic vibration. [ABSTRACT FROM AUTHOR]

Supervised deep learning has gradually been one of the most important ways to extract the features and information of plant phenotype in recent years. However, the cost and quality of manual labeling have become the bottleneck of restricting the development of technology, due mainly to the complexity of plant structure and details. In this study, a depth mask convolutional neural network (DM-CNN) was proposed to realize automatic training and segmentation for the maize plant. Firstly, the original depth and color images of maize plants were collected in indoor scene using the sensors of Kinect. The parallax between depth and color camera was also reduced after aligning the display range of depth and color images. Secondly, the depth and color images were cropped into the same size to remain from the consistency of spatial and content. The depth density function and nearest neighbor pixel filling were also utilized to remove the background of depth images, while retaining the maize plant pixels. As such, a binary image of the maize plant was represented, where the depth mask annotations were obtained by the maximum connection area. Finally, the depth mask annotations and color images were packed and then input to train the DM-CNN, where automatic images labeling and segmentation were realized for maize plants indoors. A field experiment was also designed to verify the trained DM-CNN. It was found that the training loss of depth mask annotations converged faster than that of manual annotations. Furthermore, the performance of DM-CNN trained by depth mask annotations was slightly better than that of manual ones. For the former, the mean intersection over union (mIoU) was 59.13%, and mean recall accuracy (mRA) was 65.78%. For the latter, the mIoU was 58.49% and mRA was 65.78%. In addition, the dataset was replaced 10% depth mask samples with manual annotations taken in outdoor scene, in order to verify the generalization ability of DM-CNN. After fine-tuning, excellent performance was achieved for the segmentation with the top view images of outdoor seedling maize, particularly that the mean pixel accuracy reached 84.54%. Therefore, the DM-CNN can widely be expected to automatically generate the depth mask annotations using depth images in indoor scene, thereby realizing the supervised network training. More importantly, the model trained by depth mask annotations also performed better than that by manual annotations in mean intersection over union and mean recall accuracy. The segmentation was also suitable for the different plant height ranges during the maize seedling stage, indicating an excellent generalization ability of the model. Moreover, the improved model can be transferred and used in the complex outdoor scenes for better segmentation of maize images (top view), when only 10% of samples (depth mask annotations) were replaced during training. Therefore, it is feasible to realize automatic annotation and training of deep learning model using depth mask annotations instead of manual labeling ones. The finding can also provide low-cost solutions and technical support for high-throughput and high-precision acquisition of maize seedling phenotype [ABSTRACT FROM AUTHOR]

Objective:To understand the latent types and related factors of social adaptation in relocated youths for poverty alleviation.Methods:Totally 895 young people（434 males and 461 females,aged 12-17 years） who were relocated for poverty alleviation were selected.They were assessed with the Adolescent Social Adaptation Scale（ASAAS） and School Climate Scale（SCS） for evaluating social adaptation status and perception of school atmosphere.The latent profile analysis was used to classify social adaptation,and the robust three-step method（R3 STEP） was used to explore the factors related to the type of social adaptation.Results:The social adaptation of relocated youths for poverty alleviation and relocation could be divided into "good social adaptation type"（20.3%）,“social adaptation contradictory type"（66.2%） and " social adaptation type"（13.5%）.A multinomial logistic regression analysis using a robust three-step method showed that compared with the well-adapted type,those with less teacher support（OR=0.84,0.73） and peer support（OR=0.89,0.91） and females（OR=2.50） were more likely to have social adaptation problems.Conclusion:There are different characteristic groups in the social adaptation of relocated youths for poverty alleviation and relocation.Higher teacher support and peer support may be helpful to the social adaptation of relocation youths for poverty alleviation. [ABSTRACT FROM AUTHOR]

目的 观察隐睾患儿睾丸引带组织雄激素受体（AR）表达情况。方法 55例单侧隐睾患儿，根据睾丸位 置分为腹腔型隐睾 18例、腹股沟型隐睾 25例和阴囊高位型隐睾 12例，分别采用免疫组织化学法、WESTERN Blot⁃ ting法检测患儿睾丸引带组织 AR，采用 PEARSON 相关性分析及线性回归法分析睾丸引带长度与隐睾患儿睾丸引 带组织AR光密度值的相关性。结果 腹腔型、腹股沟型和阴囊高位型隐睾患儿睾丸引带组织AR光密度值分别为 （212. 67 ± 82. 84）×10-4 、（288. 76 ± 68. 70）×10-4 、（375. 75 ± 52. 08）×10-4 ，腹腔型、腹股沟型和阴囊高位型隐睾患儿睾 丸引带组织AR光密度值逐渐升高，两两比较，P均<0. 05。腹腔型、腹股沟型和阴囊高位型隐睾患儿睾丸引带组织 AR相对表达量分别为0. 60 ± 0. 10、0. 78 ± 0. 10、0. 89 ± 0. 10，两两比较，P均<0. 05。腹腔型、腹股沟型和阴囊高位 型睾丸引带长度分别为（2. 3 ± 0. 4）、（3. 1 ± 0. 3）、（3. 6 ± 0. 5）cm，睾丸引带长度与隐睾患儿睾丸引带组织AR光密 度值呈负相关（r=-0. 770，P<0. 001）。结论 睾丸位置较高的隐睾患儿睾丸引带组织 AR表达低，睾丸引带长度较 长。睾丸引带组织AR表达与隐睾患儿睾丸引带长度有关，睾丸引带组织AR表达可能通过调控睾丸引带长度，参 与了隐睾的发生. [ABSTRACT FROM AUTHOR]

Obejective: To analyze the clinical efficacy of tonifying kidney and tiao Zhou method combined with vitamin E in the treatment of functional dysmenorrhea and its influence on uterine hemodynamics and inflammatory factors. Methods: 106 patients with functional dysmenorrhea admitted to our hospital from January 2021 to December 2022 were selected as the study objects and randomly divided into control group and observation group, with 53 cases in each group. The control group was treated with vitamin E, and the observation group was treated with tonifying kidney and tiaozhou combined with vitamin E. Systolic blood flow velocity (Vs), diastolic blood flow velocity (Vd), mean blood velocity (Vm), resistance index (RI) and serum levels of hypersensitive C-reactive protein (hs-CRP), interleukin-6 (IL-6), prostaglanin (PG)F2α and PGE2 were measured before and after 3 menstrual cycles. The dysmenorrhea VAS score and the total effective rate of treatment were compared between the two groups at different time points. Results: After treatment, Vs, Vd and Vm in observation group were higher than control group, RI was lower than control group (P<0.05). After treatment, serum hs-CRP and IL-6 levels in observation group were lower than those in control group (P<0.05). After treatment, the level of serum PGF2α in observation group was lower than that in control group, and the level of PGE2 was higher than that in control group (P<0.05). The VAS scores of the observation group at the end of treatment and the third menstrual cycle after treatment were lower than those of the control group (P<0.05). The total effective rate of the observation group was 94.34%, higher than that of the control group (71.70%) (P<0.05). Conclusion: The treatment of functional dysmenorrhea by invigorating kidney and regulating Zhou combined with vitamin E has significant clinical effect,which can improve uterine hemodynamics and reduce the level of inflammatory factors, and is worthy of further study and application. [ABSTRACT FROM AUTHOR]

Objective To explore the clinical features and outcomes of massive urinary extravasation after pyeloplasty in children. Methods From January 2016 to December 2023, the relevant clinical data were retrospectively reviewed for 18 children with massive urinary extravasation after pyeloplasty. Demographic profiles, medical history, perioperative images, urinary extravasation during hospitalization, and treatment outcomes were recorded. Results There were 16 boys and 2 girls with an operative age of (6.03±4.79) year. Obstruction was located at left ( n=16) and right ( n=2). Length of hospitalization stay was 20 (13-24) day and median duration of massive postoperative urinary extravasation 2(1-20) day. In 17/18 children, abdominal drainage tube was retained for a median duration of 11(8-15) day. The highest volume of abdominal drainage fluid withinin a single day was 485(298-786) ml. Clavien-Dindo grade of postoperative complications was Ⅰ ( n=8), Ⅱ ( n=4) and Ⅲb ( n=6).The frequency of reoperation during hospitalization was 33.33%(6/18). The perioperative APD were (4.11±1.83) and 2.40(1.58, 4.53) cm with statistically significant difference ( Z=-2.628, P=0.009). Perioperative PTmin was 0.6(0.2, 0.8) and (0.93±0.32) cm with statistically significant difference ( Z=-2.580, P=0.011). Perioperative ratio of APD/PT was 6.05(2.85-13.44) and 2.64(1.95-5.73) with statistically significant difference ( Z=-2.940, P=0.002). Postoperative values of APD, PTmin, and APD/PT significantly improved as compared preoperatively. PI-APD was 20.95%(-0.45%, 60.91%). There were two cases of postoperative re-obstruction. Overall success rate of operation was 88.89%(16/18). Conclusions Severe urinary extravasation after pyeloplasty may result in an extended duration of hospitalization and an elevated probability of reoperation. However, the occurrence of re-obstruction after pyeloplasty with massive urine extravasation remains low. [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.)

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.)

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.)

The cutting force and tool wear were measured through the zirconia turning experiment， and the ratio of workpiece material removal to tool wear was as a quantitative index of tool utilization. The single-factor experimental values were trained and predicted by BP neural network that was improved by particle swarm optimization (PSO).The one-dimensional models describing the relationship of tool utilization/cutting force and the geometric parameters of each tool were established by least-squares fitting， and the reliability of the models was tested by the correlation coefficient. The multivariate models based on the one-dimensional models are proposed too. The multivariate models were solved by PSO combined with orthogonal experimental values， and was proved to be more accurate through experiments. Taking the multivariate models as the objective function and the maximum tool utilization/minimum cutting force as the optimization goals， the tool geometry parameters were optimized by PSO， and the experiments show that the optimized tool geometry parameters are reasonable. [ABSTRACT FROM AUTHOR]

Image semantic segmentation has been widely used in various applications, such as plant phenotyping, robot harvesting, and facility scene analysis. Periodic fruit status of tomato is required for phenotypic information, such as shape and color. Tomato can be one of the most important vegetable crops in greenhouse environments. However, manual sampling and detection fail to meet the requirements of high throughput and precision, due to the time-consuming, labor-intensity, and low efficiency. Computer vision can be expected for image semantic segmentation in recent years. This image segmentation has been frequently used to distinguish the crop fruits (foreground) and growth environment (background) in complex environments. It is still necessary to improve the accuracy of semantic segmentation in the complex environments of the greenhouse, for example, the uneven lighting in greenhouse environments, overlapping and occlusion between crop fruits and leaves, and the similarity in texture and color between immature crops and leaves. Traditional semantic segmentation of deep convolutional networks has been used only in the RGB modality of images for training. The accuracy of semantic segmentation can be achieved by the bottleneck using only RGB modality for training, with the continuous evolution of deep learning models. In this study, an "RGB + Depth" model of multimodal semantic segmentation (called DFST, depth-fusion Semantic Transformer) was proposed using a hybrid Transformer encoder (mix transformer encoder). Mit (mix transformer encoder) was adopted as the main feature extraction network of the DFST model. Mit was a Transformer encoder feature extraction backbone network more suitable for semantic segmentation. Compared with the ordinary Vision Transformers (ViTs), Mit shared the following advantages: 1) A hierarchical Encoder structure was employed to output the multi-scale features. The Decoder was also combined to capture and optimize segmentation for both high-resolution coarse- and low-resolution fine-grained features; 2) Computational complexity was reduced using sequence reduction, instead of an ordinary Self-Attention structure. Positional Embedding was removed to replace the Mix FFN. 3×3 Deepwise Conv was introduced in the Feed-Forward Network (MixFFN), in order to convey the position information. Depth images were obtained under real greenhouse lighting in a specific experiment. The depth images were encoded into the HHA (horizontal disparity, height above ground, angle) format before training. The HHA-encoded depth images were fused with the RGB images as an auxiliary modality for feature extraction. A lightweight multi-layer perceptron decoder was used to decode and segment the feature maps. The experimental results show that: 1) The DFST model improved the segmentation accuracy of crops in greenhouse environments. The depth was introduced as an auxiliary modality in addition to RGB semantic segmentation. mIoU was improved by 1.37 percentage points than before. 2) The depth images were encoded into the HHA three-channel images. The high-quality depth images were obtained in the conditions of equipment, environment, and lighting. The training accuracy was improved by 1.21 percentage points using HHA-encoded depth images, compared with the non-encoded ones. 3) A transformer was used as the feature extraction backbone network, instead of traditional convolutional neural networks. The reason was the weak global modeling and easy overfitting of previous convolutional neural networks. The transformer Mit feature extraction backbone network improved the mIoU by 2.43 percentage points, compared with the ShapeConv. In summary, the DFST model can be expected to serve as the semantic segmentation task of tomato images in greenhouse environments. The rapid and accurate segmentation was achieved in complex environments, such as various lighting conditions. The findings can provide theoretical assistance for crop detection and intelligent harvesting robots in greenhouse environments. [ABSTRACT FROM AUTHOR]

A hyperbolic type lead-filled steel tube dam per (H-LFTD ) was proposed. Numerical analysis was conducted using the ABAQUS finite element software on 39 models of H-LFTD to investigate the influence of the weakening ratio, height-to-diameter ratio, inner diameter of the steel tube, height of the transition section and the connection section，and the depth of the end plate on their mechanical properties. The results show that the hysteretic performance of the H-LFTD is full and symmetrical, and has good energy dissipation characteristics. The results also show that the equivalent damping ratio is stable at 0.4-0.5, representing stable energy dissipation capacity and good ductility. With the increase of weakening ratio, the initial stiffness, post-yield stiffness, yield load, yield displacement and maximum load decrease. With the increase of height-to-diameter ratio, the initial stiffness, yield load and maximum load decrease gradually, and the yield displacement increases gradually. The stress of the end plate decreases with the embedded depth. With the increase of the height of the transition section and the connection section, the stress in the middle and end of the energy dissipation section of the H-LFTD increases gradually, and the plastic deformation in the middle part of the energy dissipation section increases gradually. The recommended weakening ratio is 0.30-0.50, while the recommended height-to-diameter ratio is 1.7-2.2. The inner diameter of steel tube should preferably be taken to be a higher value and should not be less than 130 mm. The recommended height of the transition section is 20-40 mm, the recommended height of the connection segment is 10-20 mm, while the recommended embedded depth is 12-15 mm. [ABSTRACT FROM AUTHOR]

This paper summarized the multicultural nursing management for a patient with giant left ventricular pseudoaneurysm. Based on the self-management and clinical application of postoperative power-assisted enveloped-type special garment, health guidance and nursing interventions were carried out to improve the clinical outcomes of the patient and avoid the rupture of the pseudoaneurysm. During the perioperative period, the multicultural nursing theory was used to analyze the advantages and disadvantages of self-management. Aiming for prevention of adverse factors, the multicultural nursing team led by the primary nurse participated in the formulation of patient self-management, provided nursing care consistent with the patient's culture and health education, and made full preparation for the patient with standardized nursing behavior. (本文回顾1例左心室巨大假性室壁瘤(LVPA)患者的多元文化护理体会。为患者制定自我管理目标和方案, 应用实用新型专利(术后助力环抱式专用衣)提升术后患者伤口恢复及自理能力, 护理人员给予引导和积极干预, 患者各方面得到改善, 避免巨大LVPA破裂的发生。围手术期运用多元文化护理理论, 分析自我管理的有利因素和不利因素, 针对不利因素目标分析, 以责任护士为主导的多元文化护理团队参与制定患者的自我管理, 提供与患者文化相一致的护理以及健康教育工作, 以规范的护理行为, 为患者做好充分术前准备, 促进术后康复。)

To explore the population quantitative characteristics and regional distribution of wild Viburnum plants in Southwest Hubei, and reveal the survival status and development trend of the following five Viburnum species: V. erosum, V. betulifolium, V. sympodiale, V. setigerum and V. dilatatum. A total of 27 hm2 dynamic monitoring stands were set up in Jinzi Mountains National Forest Farm, Mulinzi National Nature Reserve and Qizimei Mountains National Nature Reserve in Southwest Hubei. The age structure, dynamic quantitative analysis and static life table of five Viburnum species were used to explore the population structure, dynamic characteristics and future development potential of Viburnum plants. The results were as follows:(1)The distribution area and population size of Viburnum plants in Southwest Hubei were significantly different.(2)The age structure of the five Viburnum species displayed as the pyramidal type summarized from population structure and dynamic analysis. The number of individuals of each population was large at the young stage(89.48% of V. erosum in Jinzi Mountains, 76.38% of V. betulifolium, 67.24% of V. erosum in Mulinzi, 62.11% of V. dilatatum, 56.53% of V. sympodiale, 58.44% of V. setigerum), and only a small proportion of individuals(0.18% of V. erosum in Jinzi Mountains, 0.85% of V. betulifolium, 3.29% of V. erosum in Mulinzi, 3.97% of V. dilatatum, 8.37% of V. sympodiale, 2.79% of V. setigerum)at the old stage. The young stage plants of five Viburnum species all had strong growth potentials but were sensitive to external disturbances.(3)The survival quantity of the five Viburnum species was decreasing monotonically with increasing age class presented by static life tables. Except for V. setigerum, the life expectancy reached peak at the young age, all the other Viburnum species populations reached the peak at the middle age. The change trend of mortality rate and vanish rate were similar, but the fluctuation of vanish rate and mortality rate curves were different among different species. The survival curves were tended to be Deevey-Ⅱ type.(4)The four survival function curves showed that all five Viburnum species populations exhibited a substantial decrease at the early stage, stabilization at the middle stage, and decline at the late stage. To sum up, plant resources of Viburnum species are abundant in Southwest Hubei. Therefore, it is scientific and feasible to exploit Viburnum plants rationally. At the young stage, artificial thinning can be carried out appropriately to improve the preserving rate. During the stable middle stage, the dominant species which have good ornamental characters can be selected for appropriate development and utilization. However, some species need to be protected to maintain biodiversity in this area. [ABSTRACT FROM AUTHOR]

This paper introduced the design and application of a medical protective face screen. The new typeface screen is designed to reduce the risk of exposure to infection and improve the wearing comfort. This new typeface screen helps keep the outdoor medical workers from heat exhaustion. (本文介绍一种医用防护面屏的设计与应用, 在降低暴露风险的同时提升医务人员舒适感。该医用防护面屏也有助于日常室外作业人员的有效防暑降温, 降低中暑风险, 提升工作效率。)

Objective To explore the correlation between anxiety disorder and depression symptoms and job burnout. Methods A total of 45 patients with anxiety and depression (28,17 cases,respectively) hospitalized in the Anxiety Disorders Department of Shenzhen Kangning Hospital were enrolled in this study. The severity of their symptoms was assessed by Hamilton Anxiety Scale (HAMA),Hamilton depression Scale (HAMD). Pittsburgh Sleep Quality Index (PSQI) and Sleep Personal Beliefs and Attitudes Scale (DBAS) were used to evaluate their sleep status,and MBI-GS was used to evaluate job burnout,and the correlations were analyzed. Results The anxiety group:MBI-GS total score,depersonalization and emotional exhaustion were positively correlated with HAMA (r=0. 597-0.627,P <0.01),MBI-GS total score,emotional exhaustion and depersonalization were positively correlated with HAMD (r=0. 482-0.731,P <0.01). Emotional exhaustion was positively correlated with PSQI (r=0.382,P <0.05),and low sense of accomplishment was negatively correlated with sleep worry (r=-0.376,P <0.05). The depression group:MBI-GS total score,emotional exhaustion and depersonalization were positively correlated with HAMA (r=0.672-0.709, P< 0.01),emotional exhaustion was positively correlated with HAMD (r=0.708,P <0. 01),emotional exhaustion was positively correlated with PSQI (r=0. 668,P <0. 01),low sense of achievement was positively correlated with sleep expectation positive correlation (r=0.611, P <0.01). Conclusion The symptoms of patients with anxiety and depression are positively correlated with job burnout,and job burnout is significantly reduced and improved after systematic treatment. [ABSTRACT FROM AUTHOR]

The starch/polyvinyl alcohol (PVA) resin-based composite film with good mechanical properties was prepared with PVA and corn starch as the main raw materials and bark condensed tannin and lignin as modifiers. The micro morphology of the film was observed by scanning electron microscope, the mechanical properties of the film were tested by tensile strength and elongation at break. Fourier transform infrared spectroscopy and electrospray ionization mass spectroscopy were used to characterize the main chemical structure of the film. The results showed that the surface of the starch/PVA film modified by tannin and lignin was smooth, no pores and cracks. Lignin and tannin were physically blended and chemically reacted with starch and PVA. The increase of tannin and lignin not only improved the thermal stability and UV visible light resistance of the novel film, but also improved its mechanical properties. [ABSTRACT FROM AUTHOR]

The multi-objective optimization of vehicle bottom structure under landmine explosion is a mass computation, strong-nonlinearity and high dimension multi-objective optimization problem. The protective vehicle structure response is simulated based on combination of LAE and FSI methods. The thickness and geometry parameters of vehicle bottom structure are screened with sensitivity analysis. A response surface is built by employing the experimental design and regression analysis. Eventually, the Pareto optimality, normal boundary intersection and multi-objective optimization genetic algorithms are applied to get the Pareto optimal front and an ideal solution which could give a comprehensive consideration of the contradiction between lightweight and protection capability. [ABSTRACT FROM AUTHOR]

In order to identify the pathogen causing the death of Chinese grass turtle (Chinemys reevesiis) and identify its biological characteristics, a pathogenic bacterium was isolated from the diseased liver tissue of the dead Chinese tortoise in this study, which was identified as Aeromonas veronii by biochemical identification and named CRQ1. The pathogenicity, virulence genes, drug resistance and drug resistance genes of CRQ1 were detected by zebrafish attack test, PCR and KB susceptibility disk method. The results showed that the LD50 of CRQ1 strain to zebrafish was 3. 57 x107cfu/ml, carrying aerA, act, aha, Ser, Exu, Up, Hly, ompA and LuxS nine virulence genes were found to be sensitive to nine kinds of drugs, including tilmicosin, ciprofloxacin and enrofloxacin, and it was moderately sensitive to eight drugs such as amikacin, streptomycin, and Sulfamethoxypyrimidine, but resistant to neostigmine. The isolates carried let(A), tet(E), oqxA, gyrA, gyrB, parC, parE, aminoglycoside resistance genes aac2, aac(6)-Ib, aadB, aao4, sulfonamide resistant sul-I and macrolide resistance gene emB． However, it did not express the corresponding resistance phenotype, which was related to the duration and frequency of drug use. It is suggested that A veronii is the pathogenic bacteria causing the death of Chinese grass turtle, and it carries virulence genes related to pathogenicity and has potential drug resistance. This study provides a basis for the study of pathogenic mechanism and prevention and control of A. veronii from Chinese grass turtle. [ABSTRACT FROM AUTHOR]

Objective To explore the clinical features and treatment of imperforate hymen (IH) in children. Methods A retrospective analysis was performed for 24 children of imperforate hymen from February 2012 to October 2020. The medical history, physical signs, auxiliary examination results, surgical methods, intra operative conditions, and postoperative follow-up conditions were evaluated. Results There were 7 children (29%) diagnosed with IH before puberty, and 17 (71%) were treated with symptoms during puberty. The main clinical manifestations included abdominal pain and discomfort (16/17,94. 1%). Most of the pediatre patients had urinary symptoms such as retention of urine and impaired urination (7/17.41.2%) and frequent urination (2/17,11.8%). Some had fever (2/17,11.8%), bloating (1/17,5.9%), nausea (1/17.5.9%). and difficulty defecating (1/17,5.9%). 7 (41.2%) of the children with symptoms had been misdiagnosed. All 24 children underwent hymenotomy with a cruciate incision, with no obvious postoperative complications during follow-up. Conclusion The diagnosis of IH requires careful physical examination, in which ultrasound examination can be helpful in making correct diagnosis. The best timing for surgery is during puberty, but before the menarche. Symptomatic adolescent should receive surgery as soon as possible after diagnosis. The hymen cruciate incision is safe and effective as a standard surgical procedure. [ABSTRACT FROM AUTHOR]

[ Objective] The present paper aimed to analyze whether the accumulation of glycoside alkaloids in different potato tissues has influence on human use and food processing, the accumulation levels of glycoside alkaloids in different potato tissues and organs under different storage conditions were summarized. [ Method ] In the present study, the contents of glucoside alkaloids in tuber and bud tissues of potato resources 1-76 and 6-36 (purple bark), 5-36 and 6-1 ( white bark) were determined by HIGH performance liquid chromatography-tandem mass spectrometry after 60 days of storage in light and cellars. Real-time fluorescence RCR was used to analyze the gene expression of glycoside alkaloid biosynthesis. [ Result ] The detection of glycoalkaloids showed that the content of glycoalkaloids in four kinds of potato sprouts was significantly higher than that in tubers after storage under different conditions, the content of glycoalkaloids in tubers exceeded the safe edible standard ( 0. 2 mg/ g, fresh quality), but whether it was safe to eat and food processing needs more experimental verification ; The detection in the expression of glycoalkaloid biosynthesis-related genes showed that the expression levels of some genes ( StCAS, StSSR2, StGAME4, StSGT I, StSG12) in the glycoalkaloid biosynthesis pathway of different potato resources were closely related to the content of glycoalkaloids, and the expression of other genes in potato had certain tissue specificity. [ Conclusion] By simply and quickly detecting the content of glycoalkaloids in potato tubers and sprouts, this test found that the content of glycoalkaloids in tubers of potato resources ( 1-76, 6-1 ) after storage did not exceed the safety standard, but it was not recommended. The results of this study provided a theoretical reference value for human safe consumption of potatoes. [ABSTRACT FROM AUTHOR]

To observe the efficacy of pelvic floor muscle rehabilitation training combined with pelvic floor reconstruction in the treatment of female pelvic floor dysfunction (PFD) diseases and its effect on inflammatory response and stress response. 200 patients with PFD who were treated in our hospital from January 2019 to January 2021 were selected, and they were randomly divided into control group (100 cases) and study group (100 cases) by random number table method. Patients in the control group received pelvic floor reconstruction, and patients in the study group received pelvic floor muscle rehabilitation training combined with pelvic floor reconstruction. The efficacy and postoperative complications of the two groups were observed, and the related scale scores, inflammatory response and stress response indexes of the two groups were compared. After treatment, the scores of pelvic floor impact questionnaire short form (PFIQ-7), pelvic floor distress inventory short form (PFDI-20) in the study group were lower than those in the control group (P<0.05). The pelvic floor class I muscle fiber voltage and pelvic floor class II muscle fiber voltage in the study group were higher than those in the control group after treatment (P<0.05). Interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) and high sensitivity C-reactive protein (hs-CRP) in the study group after treatment were lower than those in the control group (P<0.05). Cortisol (COR), norepinephrine (NE) and prostaglandin E2 (PGE2) in the study group after treatment were lower than those in the control group (P<0.05). The incidence of postoperative complications in the study group was lower than that in the control group (P<0.05). Pelvic floor muscle rehabilitation training combined with pelvic floor reconstruction in the treatment of PFD can promote the recovery of pelvic floor function, reduce inflammatory reaction and stress reaction, and reduce the incidence of postoperative complications. [ABSTRACT FROM AUTHOR]

With the development of society and economy and the aging of the population, lipid metabolism-related diseases and osteoporosis, as two common metabolism-related diseases, seriously affect the health of people, and has become a serious public health problem. It is traditionally believed that dyslipidemia and osteoporosis are independent. However, many recent studies have shown that there is a certain correlation between them, not only in common pathogenic factors but also closely in pathophysiology. Hyperlipidemia, obesity, atherosclerosis, and other lipid metabolism-related diseases are regulated by a variety of signaling pathways, including Wnt, TGF β/BMPs, Notch, Hhs/Ptch1/Smo-Glil, and activated transcription factors. These signaling pathways and transcription factors do not function independently. They can be simultaneously activated in a specific micro environment to induce the differentiation of MSCs. This will affect the differentiation and function of adipose and osteoblasts and the balance between bone formation and bone resorption, leading to the development of osteoporosis. More and more evidence shows that patients with osteoporosis are often complicated with abnormal lipid metabolism such as hyperlipidemia. With the relief of osteoporosis after treatment, the disorder of lipid metabolism may be reversed. This review focuses on the main signaling pathways between lipid metabolism and osteoporosis and the relationship between lipid metabolism-related diseases and osteoporosis. Exploring the molecular mechanism of hyperlipidemia and osteoporosis will provide a theoretical basis for the prevention and treatment of osteoporosis. [ABSTRACT FROM AUTHOR]

Accurate and high-throughput maize plant phenotyping is vital for crop breeding and cultivation research. Ear related phenotypic parameters are important agronomic traits. However, fully automatic and fine ear organ segmentation of maize shoots from three-dimensional (3D) point clouds is still challenging. To address this issue, a skeleton-based maize plant organ segmentation process was used to segment the ear organs of the plant and extract phenotypic parameters. Firstly, the Laplace based skeleton extraction algorithm was utilized to generate plant skeleton. In this study, breadth first search method was used to obtain all the connected branches of the plant skeleton. The connected branches with the largest number of vertices were retained as the plant skeleton, while the small skeletons formed by the other connected branches were deleted to ensure that the plant skeleton is a connected undirected graph. Secondly, the plant skeleton was decomposed into several organ sub skeletons using Dijkstra algorithm, and then the organ sub skeletons were divided into stem sub skeletons and non-stem sub skeletons according to the angle features of sub skeletons and point cloud cylinder features. After that, the organ sub skeletons were used to obtain the seed points of each organ, and then the unsegmented points were classified in the order from the top to the bottom of the plant in turn, to get the final organ segmentation results. Four constraints (organ height constraint, sub-skeleton length constraint, cylindrical feature constraint, and the point cloud number constraint) were used to identify ear organs from all organ instances. Four constraints (organ height constraint, sub-skeleton length constraint, cylindrical feature constraint, and the point cloud number constraint) were used to identify ear organs from all organ instances. Four phenotypic traits, ear height, ear length, ear diameter and the ratio of plant height to ear height, were extracted using the ear organ instance. The segmentation method was tested on 15 maize plants. This study took about 24 seconds to process the maize plant with 10 000 point clouds. The result showed that the proposed method had a strong ability of ear recognition. The ear recognition accuracy was 91.3%. The average F1 score, average precision, and average recall of the all the ear organs were 0.73, 0.82, and 0.70 respectively. Furthermore, to compare with the phenotypic parameters obtained by the proposed method in this paper and those obtained by manual measurement, the regression analysis was done and the results showed that the determination coefficients of ear height, ear length, ear diameter and the ratio of plant height to ear height, were 0.97, 0.78, 0.85, and 0.96, respectively, the root mean square error were 3.23, 4.98, 0.73 cm, and 0.07, respectively. There were also some problems in this method. First of all, if the distance between the ear tip point cloud and the other organ point cloud was too close, the ear skeleton might fail to be extracted, resulting in the ear could not be segmented, which often occurred in the second ear with a smaller volume. Secondly, the ability of the segmentation method to identify the boundary between the ear and other organs needs to be improved, which would lead to false segmentation of the ear point cloud, and more probability of under segmentation. The proposed algorithm cloud extract the point cloud and phenotypic parameters of ear organs. As far as we know, this was the first method to obtain this effect. The proposed approach might play an important role in further maize research and applications, such as genotype-to-phenotype study, geometric reconstruction, and dynamic growth monitoring. [ABSTRACT FROM AUTHOR]

Objective To investigate the changes in the senescence- and function-related parameters of CD8+ T cells after direct-acting antiviral (DAA) treatment and their clinical significance in patients with hepatitis C virus (HCV) infection. Methods A total of 26 patients with HCV infection who attended the Second Affiliated Hospital of Air Force Medical University from January 2017 to December 2018 were enrolled, and all patients were given sofosbuvir and daclatasvir tablets. A total of 22 patients who were cured and 20 healthy controls were enrolled. Flow cytometry was used to measure the expression of silent information regulator 1 (SIRT1), CD57, programmed death-1 (PD-1), and Tim-3 on CD8+ T cells; RT-PCR was used to measure the expression of p21 and p53; Luminex liquid suspension chip was used to observe senescence-associated secretory phenotype in peripheral blood. A one-way analysis of variance was used for comparison of continuous data between multiple groups, and the least significant difference t-test was used for further comparison between two groups. Results There were significant differences in the expression of SIRT1, PD-1, and Tim-3 between the three groups (F=6.712, 4.202, and 4.575, all P＜0.05). Compared with the healthy control group, the HCV group had significant increases in the expression of SIRT1, PD-1, and Tim-3 on CD8+ T cells (all P＜0.05), and the HCV cured group had a significant increase in the expression of Tim-3 (P＜0.05), with no significant changes in SIRT1 and PD-1 (both P>0.05). There were significant differences in the expression of p53 and p21 between the three groups (F=11.144 and 6.594, both P＜0.05). Compared with the healthy control group, the HCV cured group and the HCV group had significant reductions in the expression of p53 (both P＜0.001) and p21 (both P＜0.05), and there were no significant differences between the HCV group and the HCV cured group (both P>0.05). There were significant differences in interleukin-6 (IL-6) and tumor necrosis factor α (TNFα) between the three groups (F=3.920 and 6.337, both P＜0.05), and compared with the healthy control group, the HCV group had significant increases in the levels of IL-6 and TNFα in peripheral blood (both P＜0.05). There were no significant changes in IL-6 and TNFα in the HCV cured group (both P>0.05), and compared with the HCV group, the HCV cured group had a significant reduction in the level of TNFα (P=0.007). Conclusion Senescence of CD8+ T cells is observed in patients with HCV infection and is alleviated after DAA treatment, with partial recovery of the function of CD8+ T cells. [ABSTRACT FROM AUTHOR]

Objective To explore time to positivity (TTP) of blood culture as a predictor of AmpC β-lactamase and the in-hospital mortality in tumor patients with Escherichia coli bloodstream infection (BSI). Methods The positive blood culture data of 248 adult tumor patients with Escherichia coli BSI were collected. TTP was recorded by peripheral vein aseptic puncture, and the production of AmpC-β-lactamase was detected by modified three-dimensional test. The area under receiver operating characteristic (ROC) curve was drawn to analyze the predictive value of TTP for the production of AmpC β-lactamase and the mortality of patients. Results TTP was (9. 42 ±3.45) h, and 45 strains (18. 1 %) produced AmpC. TTP was (7. 97 ±1.96) h in the enzyme producing group, which was shorter than that in the non-AmpC enzymeproducing group (9.7 5 ± 3.56) h (P< 0. 001). ROC curve showed that the best cut-off value of TTP for predicting AmpC-β-lactamase was 8. 16 h, and the sensitivity, specificity, and AUC were 72%, 62% and 0. 680, respectively. Univariate analysis showed that TTP, metastasis, organ failure, sepsis, shock, mechanical ventilation, and blood transfusion were predictive risk factors for in-hospital mortality (all P< 0 .0 5); multivariate regression analysis showed that TTP (OR = 2. 29, 95% CI 0. 69-8. 63, P= 0. 042) was the independent predictive risk factor for in-hospital mortality. ROC curve showed that the best cut-off value for TTP to predict the in-hospital mortality of tumor patients with Escherichia coli BSI was 9. 24 h, with the sensitivity of 66%, specificity of 75% and AUC of 0. 692. Conclusions Short TTP of blood culture can be used as a predictor of AmpC β-lactamase, and also as a predictive risk factor for mortality in tumor patients with Escherichia coli BS!. According to the length of TIP of blood cultrue and other clinical variables, clinicians can select the appropriate antibiotic treatment as early as possible to improve the survival of tumor patients [ABSTRACT FROM AUTHOR]

By the low cyclic reversed loading tests on four specimens of two-story and two-bay precast frame including prefabricated damping wall-frame，bare frame，and conventional wall-frame，the comparative studies were conducted to investigate the failure characteristic, hysteretic behavior, degradation of bearing capacity and stiffness and energydissipation capacity of precast damping wall-RC frame structure. The experimental results indicate that, the precast damping wall-frame structure exhibits full hysteretic loops and good energy dissipation capacity. Its equivalent viscous damping coefficient reaches above 0. 13, which is more than that of precast bare frame and conventional wall-frame； the different damping wall types have little influence on the seismic performance of precast damping wall-frame, and both the horizontal damping wall and the vertical clamping wall used in precast frame can increase its horizontal bearing capacity and lateral stiffness. However, these additional effects to the frame are relatively small compared to conventional walls, so their excessive restraint effects to the precast frame can be relieved. In comparison with the conventional wall-frame, the precast damping wall-frame performs well in bearing capacity and stiffness degradation, therefore it has a better load-bearing capability to resist strong earthquakes. When the inter-story drift ratio of precast frame specimens reaches 1/50, the conventional walls are destroyed with end cracking and concrete crushing, while the damping walls still keep their function without any structural damage. [ABSTRACT FROM AUTHOR]

The explosion test of four full-scale circular cross section and four full-scale square section concrete-filled steel tubular columns was researched. Applying axial pressure to four concrete-filled steel tubular columns with deflection-to-span ratio less than 1/100 after explosion, the residual bearing capacity of concrete-filled steel tubular column under blast loading was obtained. The strain variation of the concrete-filled steel tubular columns was analyzed. The load-strain curve of the circular concrete-filled steel tubular column has obvious yield plateau, indicating the circular concrete-filled steel tubular column has better ductility than square concrete-filled steel tubular column. After the test, six concrete-filled steel tubular columns were ripped (four specimens were tested for the residual bearing capacity while the other two components were not). The destruction performance of the circular and square concrete-filled steel tubular columns was studied before and after the residual bearing capacity test, showing consistent failure modes before and after the test. Using a unified theoretical formula which was modified by the task group, the damage degrees of the four specimens were assessed. Three specimens were damaged slightly, and one specimens was severely damaged, but no collapse occurred. [ABSTRACT FROM AUTHOR]

In order to quicken search speed and improve optimization effect, a Bloch sphere quantum genetic algorithm based on gradual asymptotic search was proposed. In this algorithm, quantum chromosomes were coded by Bloch sphere coordinates bits. Based on least square method, a new update strategy for quantum chromosomes was constructed. A formula, which contained the magnitude and direction of angle in quantum rotation gate, was established. The phase formula in mutation operation was configured. This proposed algorithm was applied in optimization of extreme value in multi-variables function to verify the performance. The experimental results showed that, the proposed algorithm not only has better diversity and randomicity of population, but also has the advantages of less iteration, faster convergence speed and better optimal efficiency. [ABSTRACT FROM AUTHOR]