Search

In order to grasp the spatiotemporal variation characteristics and driving mechanism of vegetation ecological quality in Guangxi, based on multi-source data such as meteorology, terrain, soil and remote sensing, and using the ecological quality index (EQI) as an evaluation indicator, linear trend analysis, correlation analysis and geographical detector method were used to analyze the spatiotemporal variation and driving mechanisms from 2000 to 2020. The results were as follows: (1) Since 2000, the vegetation EQI of Guangxi had significantly increased, and the regional vegetation ecology had improved significantly. The development of vegetation ecological quality had experienced stages of slow growth, rapid growth and significant improvement. In terms of space, the vegetation EQI in Guangxi showed a characteristic of high in four directions and low in the middle, with the high-value areas gradually expanding from the east to the west and north. (2) The influencing factors of spatiotemporal evolution of vegetation ecological quality in Guangxi were significantly different. The overall change of vegetation ecological quality at different altitudes showed a trend of ‘increase-decrease-stability-fluctuation’. The vegetation ecological quality in different soil types was high in loam soil and low in sandy soil. The ecological quality of forest and shrub-grass was high, and the ecological quality of farmland vegetation was low. There was a significant positive correlation between vegetation ecological quality and climate driving factors, which was affected by both temperature and precipitation. The area mainly driven by temperature (T) was the widest, followed by the area mainly driven by precipitation (P). The areas driven strongly (［T+P］+) and weakly (［T+P］-) by temperature and precipitation were smaller.(3) The driving force of changes in vegetation ecological quality change of Guangxi was affected by terrain, soil, vegetation, climate, natural disasters and human activities. The order of explanatory power of natural influencing factors was vegetation > terrain > soil > climate, in which the vegetation net primary productivity and vegetation coverage were the most important factors affecting the spatiotemporal variation of vegetation ecological quality. The effects of natural factors on vegetation ecological quality in Guangxi was interactive, showing a nonlinear enhancement and two-factor enhancement relationship, and the interaction between terrain and vegetation, soil and vegetation, and climate and vegetation were the most obvious. Natural disasters and human activities aggravated the impact of vegetation ecological quality change. Among them, meteorological disasters such as drought and low temperature damage inhibited the improvement of vegetation ecological quality, while human activities such as forestry ecological engineering promoted the improvement of vegetation ecological quality. The research results provide a scientific theoretical reference and technical support for making reasonable measures of vegetation ecological protection and restoration in Guangxi.

Abstract UFMylation is a ubiquitination-like modification that is related to endoplasmic reticulum stress and unfolded protein response. A recent study reported that Ufl1, a key enzyme of UFMylation, protects against heart failure, indicating that UFMylation may be associated with heart function regulation. In the present study, we initially constructed a Flag-6×His-tagged Ufm1ΔSC transgenic (Tg-Ufm1) mouse model that enables UFMylation studies in vivo. Tg-Ufm1 mice showed significant activation of UFMylation in hearts. By using this model, we identified 38 potential Ufm1-binding proteins in heart tissues through LC‒MS/MS methods. We found that these proteins were associated with mitochondria, metabolism and chaperone binding. By using transcriptomic screening, we identified Tnfaip2 as a novel UFMylation-associated gene. Overexpression of Ufm1 significantly upregulated the protein expression of Tnfaip2, whereas isoproterenol treatment decreased Tnfaip2 expression in Tg-Ufm1 mice. These data may provide novel clues for UFMylation in cardiac hypertrophy.

Objective To explore body image characteristics and their relationship with perceived stress, self-compassion, and implicit attitudes among Chinese women with breast cancer. Methods Body image scale (BIS), Chinese perceived stress scale (CPSS), and self-compassion scale-short form (SCS-SF) were employed to evaluate 343 breast cancer patients recruited from a tertiary hospital. Implicit association test (IAT) was conducted on 68 patients, and 65 valid results were obtained. Based on BIS score of 10 as a cutoff value, the patients were divided into BIS score < 10 and ≥10 groups. Results Among the 343 breast cancer patients, 161 had a BIS score ≥10, and the detection rate of body image dysregulation was 47%. The patients at an age of ≤40 years had higher negative body image scores than those at 40~50 years and those at ≥50 years, and those of jobless had higher negative scores than those employed and those retired. Body image was positively correlated with perceived stress (r=0.49, P < 0.01) and negatively with self-compassion (r=-0.49, P < 0.01) and implicit attitudes (r=-0.26, P < 0.05) in these patients. The patients from the BIS score < 10 group had obviously higher IAT D-score than those of the BIS score < 10 group. Conclusion The detection rate of body image dysregulation is quite high in women with breast cancer detection rate of body image dysregulation. Body image is closely associated with perceived stress, self-compassion, implicit attitudes, age, and employment status, which provides the basis for the scientific development of clinical interventions to improve body image in the patients.

Objective To investigate the safety of the ultra-early (0~6 h) activity program for patients after minimally invasive radical treatment of cervical cancer. Methods A non-randomized concurrent controlled trial was conducted on 118 patients undergoing minimally invasive radical surgery for cervical cancer in our department from June to December 2019. According to patient's wish, they were divided into the ultra-early (0~6 h) postoperative activity group (n=58) and the conventional activity group (n=60). The patients in both groups received the perioperative program of rapid gynecological rehabilitation. After the operation, the conventional activity group adopted the conventional nursing plan, and the ultra-early activity group adopted the ultra-early postoperative activity plan according to the characteristics of patients with one-to-one guidance and assistance by professional health education nurses. If a patient suffered from conscious weakness, palpitation, dizziness, pale or cold sweats, oxygen saturation < 94%, or heart rate reaching the target heart rate of Karvonen formula, the activity program would be stopped immediately when any of them presented. Results The time to get out of bed for the first time and the activity scores were better in the ultra-early activity group than the conventional activity group (P=0.011). There were no statistically significant differences in SpO2, pulse, pain scores, and incidence of complications between the 2 groups before and after activities. The ultra-early activity group had obviously better average activity in 3 d post-operatively during hospitalization (P=0.000), shorter times to first postoperative exhaust (P=0.020) and to first oral feeding (P=0.010), and shorter length of hospital stay (P=0.010) when compared with the conventional activity group. Conclusion All patients in the ultra-early activity group are able to get out of bed within 24 h post-operatively, and attain better activity level in 3 d after operation than those of the conventional activity group. Ultra-early postoperative activity program can effectively improve the early out-of-bed activity rate after cervical cancer surgery and have no effect on the occurrence of postoperative complications.

In the new era of rapid development of internet, where massive forgery images with updated tampering techniques flood into, traditional algorithms are no longer able to deal with the latest multimedia tampering techniques, especially those caused by Deepfake and deep learning techniques. Thus, a universal framework for image forensics including image pre-processing module, feature extraction module and post-processing module designed for specific classification were proposed creatively. Accordingly, the state-of-the-art algorithms were reviewed，and meanwhile the main strength and limitations of current algorithms were generalized. More importantly, the future studies were also listed for advancing the development of digital image forensics.

In a dynamic and complex environment, to improve the cooperative operation efficiency of multiple AUV groups, a bionic neural wave network (BNWN) algorithm, and a velocity vector synthesis (VVS) algorithm are proposed. A strategy of space decomposition and node space recursion is adopted to provide dynamic navigation maps for AUV monomers and to modularize the tasks. A closed boundary function is introduced to construct a dynamic grid model to autonomously avoid obstacles with multiple moving forms. The results of three sets of simulation experiments show that the number of changes in direction, the total path length, and the collision rate of AUV individuals are greatly reduced. These results prove that the proposed algorithm has high autonomy and strong adaptability.

This study adopted the revised Self-assessment of Family Dynamics (SSFD), the Centre for Evaluation of Streaming Depression (CES-D), and the Chinese version of the Interpersonal Reactivity Indicator (IRI-C) by Zeng Weinan and others to investigate the family dynamics, depressive status, and empathy of college students in Sichuan, Chongqing, and Guizhou. The results showed that: (1) Male students’ cognitive empathy scores were significantly lower than female students; (2) The overall depression score of college students in Chongqing municipality was significantly lower than that of college students in Sichuan and Guizhou provinces; (3) Higher vocational college students’ depression scores were significantly lower than undergraduate college students; (4) The overall depression scores of college students from rural areas were significantly higher than those of college students from urban areas; (5) The only child had significantly lower depression scores than the non-only child, and significantly higher scores on all dimensions of systemic family dynamics than the non-only child; (6) Depression had a highly significant correlation with all dimensions of family dynamics traits, and depression was highly significantly associated with cognitive empathy; (7) Cognitive empathy partially mediated the relationship between illness conceptions, systemic logic, and depression, with the proportion of indirect effect accounting for the total effect of 9.18% and 2.64% respectively.

Medical ethics is a quality that should be possessed by healthcare workers. There is an urgent need for the development of medical and health services, which carries the people’s aspiration for a better life. We should vigorously promote the construction of medical ethics, in which the author believes that “nourishing” is the cornerstone and “guidance” is the core. In this paper, we discuss the construction of medical ethics from the two dimensions of how medical and health institutions can make good use of “nourishing” and “guidance,” and put forward corresponding countermeasures from the current status quo of medical ethics. Our aim is to develop and strengthen the medical and health service team in terms of quality, quantity, ability, and moral integrity, thereby promoting the construction of the Healthy China Initiatives.

Positive psychology is capable of not only meeting the developing requirements of humans, but also establishing effective scientific virtues. Under the impact of positive psychology, colleges and universities have exerted certain positive effects and social values in conducting mental health education for college students, thereby optimizing the overall mode of mental health education and realizing its high efficacy and scientificization. This essay provides a comprehensive analysis of the significance of mental health education to the development of college students, adopts a positive psychology stance, and examines relevant research strategies in an effort to enhance the mental health of college students.

A one-step incubation ELISA kit based on monoclonal antibody against dibutyl phthalate (DBP) was developed. After optimizing concentrations of coating antigen, antibody and composition of the assay buffer, an inhibition curve was plotted. The IC50 is 29.6 ng·mL-1, and the detection limit for DBP is 3.6 ng·mL-1. Compared with other ELISA methods, this ELISA kit had a simpler sample preparation, costed less time for detection and could detect more types of sample. The recoveries of DBP in water, beverage and liquor samples were range from 78% to 110.4%, the range of coefficient of variations is 7.7-15.3%. The cross reactivity was very low (&1%) except that for butyl benzyl phthalate (3.9%) and the di-isobutyl phthalate (12.5%). The detection results in liquor showed good correlation with those from GC-MS. All data above indicated that this kit could be used as the fast and high-throughput screening of DBP in water, beverage and liquor.