53 research outputs found

    Diversity analysis of agronomic and nutritional traits of hybrid offspring of forage bermudagrass

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    Because of its excellent stress resistance and forage quality, the forage bermudagrass hybrid population had attracted the attention of scientific researchers in recent years. Studying its diversity could promote the breeding of desirable varieties. The variability in agronomic traits including fresh weight, dry weight, ash content, crude protein content, crude fat, phosphorus content, and relative feed value for 56 bermudagrass was investigated using Wrangler as an experimental reference. Grey correlation analysis and cluster analysis were employed to screen bermudagrass with high yield and superior quality. WCF-34 had the highest 2-year fresh weight (109,773.3 kg/ha), WCF-37 had the highest 2-year dry weight (31,951.6 kg/ha), WCF-24 had the lowest Ash content (7.46%), WCF-26 had the highest crude protein content (16.27%), WCF-27 had the highest curde fat content (3.58%), WCF-13 had the highest P content (0.45%), and WCF-42 had the highest relative feed value (95.32). Combining the results of grey relational analysis and cluster analysis, WCF-42, WCF-34, WCF-38, WCF-37, and WCF-40 were selected as high-quality bermudagrass. Through comprehensive analysis of the agronomic characters of bermudagrass, five bermudagrass were selected, the outcomes of this study would provide a theoretical basis for the breeding and genetic enhancement of bermudagrass

    Case report: Treatment of two cases of recurrent/refractory early T-cell precursor acute lymphoblastic leukemia with venetoclax combined with the CAG regimen

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    Early T-cell precursor acute lymphoblastic leukemia (ETP-ALL) is a highly aggressive subtype of T-ALL. No standard chemotherapy regimen exists for patients with recurrent/refractory (R/R) ETP-ALL; in these patients, the primary goal of salvage therapy is to achieve remission as a foundation for consolidation and intensification treatments. This study reports cases of two patients with R/R ETP-ALL who underwent salvage therapy of venetoclax combined with the CAG regimen and achieved complete remission in the bone marrow. Flow cytometry results were negative for minimal residual disease. Both patients were bridged to allogeneic hematopoietic stem cell transplantation (HSCT) and in complete remission over a 3-year follow-up period. These cases show that the use of venetoclax combined with the CAG regimen may offer patients with R/R ETP-ALL an opportunity for allogeneic HSCT

    A study on the impact of forgiveness intervention on mainland Chinese college students

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    With the increasing use of forgiveness interventions as therapy and educational programmes, a lot of studies have been conducted to investigate the effectiveness of the interventions. However, most of the existing intervention studies do not consider the cultural elements in forgiveness. The current study aimed to fill this gap by conducting research on forgiveness interventions in Chinese cultural context. The researcher devised a forgiveness programme by integrating the programme based on Enright-Process-Model with another programme based on Chinese cultural values. To examine the effects of the forgiveness programme on the participants’ forgiveness attitudes and other psychological variables, a 3-phase study design combining quantitative and qualitative approaches was adopted. In Phase I, the reliabilities and validities of the instruments (i.e., Decisional Forgiveness Scale, Emotional Forgiveness Scale, and Batson’s Empathy Adjectives) were examined with the sample of 194 college students (114 males and 80 females) in Nanjing. The instruments were used in the intervention studies (Phase II and Phase III). In Phase II study, two 4-session forgiveness programmes which were based on the Enright psycho-social process model and the Chinese cultural values respectively were conducted for 24 college students in Zhuhai. Based on both the quantitative and qualitative findings of the two brief programmes, a 10-session forgiveness programme integrating Chinese cultural values and the Enright Process Model was devised and implemented among 28 college students in Zhuhai (16 in experimental group and 12 in control group; 2 males and 26 females) in Phase III, the main study. The findings disclosed that gains in forgiveness attitudes in the experimental group were significantly higher than those in the control group. The improvement in the experimental group was maintained at the follow-up test after 3-month. Gains of state-anxiety in the experimental group, meanwhile, were marginally higher than those of the control group, while gains of empathy and self-esteem had no significant differences between groups. The qualitative findings further revealed the participants’ understandings of forgiveness and the strategies that influence forgiveness. The strategies facilitating forgiveness included engaging in perspective taking, taking self-responsibility, cultivating empathy, having positive thinking, and stopping rumination. In contrast, repeated offences, severe hurt experience from the offence, no apology from the offenders, and no continued relationship are perceived as factors that hinder the participants’ forgiveness. In addition, Chinese values of harmony and face were found to be pertinent factors influencing participants’ decision to forgive. The implications of the findings are discussed. Theoretically, the integration of the Enright Forgiveness Process Model and Chinese cultural values was effective in promoting forgiveness attitudes and psychological well-being with Chinese participants in the collectivist cultural setting. Practically, elements such as reconciliation need to be included in the forgiveness interventions with Chinese participants. Chinese educators are suggested to use the experiential psycho-social approach rather than the indoctrinatory approach to cultivate the value and strategies of forgiveness. The limitations of the study and suggestions for future research are also presented.published_or_final_versionEducationDoctoralDoctor of Philosoph

    Relationship between Adverse Childhood Experiences and Mental Health in Chinese Adolescents: Differences among Girls and Boys

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    The negative effects of adverse childhood experiences (ACEs) on individual mental health have been widely demonstrated, yet fewer studies have examined the impact of ACEs on depression and anxiety of Chinese adolescents and their sex differences. This cross-sectional study surveyed 12421 adolescents aged 10–17 in Hechi City, Guangxi Province, to measure their levels of ACEs, depression symptoms, and anxiety symptoms. The results found that: (1) Girls were more likely to experience ACEs than boys (37.67% vs. 32.25%, χ2 = 39.97, p < 0.001). (2) Emotion-related ACEs were more likely to occur among girls, while physical maltreatment, violence, and family dysfunction related ACEs were more likely to occur among boys. (3) Adolescents with ACEs were more likely to develop depression (OR = 4.40) and anxiety symptoms (OR = 4.60) than those without ACEs; adolescents who have encountered “peer isolation” and “emotional neglect” are most likely to develop depression (OR = 6.09/5.04) and anxiety symptoms (OR = 6.14/4.94). (4) The dose-response relationship between the level of ACE exposure and the risk of depression/anxiety symptoms was significant (p < 0.05), i.e., the risk increased as ACE level increased. (5) Girls were more likely to develop depression and anxiety symptoms than boys with the same ACE level. This study deepens the understanding of the prevalence of ACEs, the effect of ACEs on depression and anxiety symptoms, and their sex differences among Chinese adolescents in the underdeveloped regions of China. It provides more empirical support for future work on adolescent mental health protection

    Novel integrated strategies toward efficient and stable unassisted photoelectrochemical water splitting

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    © 2020 Unassisted photoelectrochemical (PEC) water splitting for hydrogen evolution has been regarded as a sustainable route for the harvest and utilization of solar energy. To achieve such unassisted PEC water splitting, two novel integrated strategies have been developed: to design tandem structures of photoanodes/photocathodes and to construct hybrid devices of solar/PEC cells. Some key unsolved problems, however, still limit the further development of high-performance unassisted PEC water splitting, such as low efficiency, poor stability, and high cost. Herein, we present a brief summary of the latest development in this area and propose perspectives for further enhancing this state-of-the-art solar-to‑hydrogen conversion technology, including all-metal oxide photoelectrodes, nanoarray design, surface modification, device coupling, monolithic configuration, and multi-integration

    Chronic Caloric Restriction and Exercise Improve Metabolic Conditions of Dietary-Induced Obese Mice in Autophagy Correlated Manner without Involving AMPK

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    Aim. To investigate the role of AMPK activation and autophagy in mediating the beneficial effects of exercise and caloric restriction in obesity. Methods. Dietary-induced obesity mice were made and divided into 5 groups; one additional group of normal mice serves as control. Mice in each group received different combinations of interventions including low fat diet, caloric restriction, and exercise. Then their metabolic conditions were assessed by measuring serum glucose and insulin, serum lipids, and liver function. AMPK phosphorylation and autophagy activity were detected by western blotting. Results. Obese mice models were successfully induced by high fat diet. Caloric restriction consistently improved the metabolic conditions of the obese mice, and the effects are more prominent than the mice that received only exercise. Also, caloric restriction, exercise, and low fat diet showed a synergistic effect in the improvement of metabolic conditions. Western blotting results showed that this improvement was not related with the activation of AMPK in liver, skeletal muscle, or heart but correlates well with the autophagy activity. Conclusion. Caloric restriction has more prominent beneficial effects than exercise in dietary-induced obese mice. These effects are correlated with the autophagy activity and may be independent of AMPK activation

    A Novel Method for Broiler Abnormal Sound Detection Using WMFCC and HMM

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    Broilers produce abnormal sounds such as cough and snore when they suffer from respiratory diseases. The aim of this research work was to develop a method for broiler abnormal sound detection. The sounds were recorded in a broiler house for one week (24/7). There were 20 thousand white feather broilers reared on the floor in a building. Results showed that the developed recognition algorithm, using wavelet transform Mel frequency cepstrum coefficients (WMFCCs), correlation distance Fisher criterion (CDF), and hidden Markov model (HMM), provided an average accuracy, precision, recall, and F1 of 93.8%, 94.4%, 94.1%, and 94.2%, respectively, for broiler sound samples. The results indicate that sound analysis can be used in broiler respiratory assessment in a commercial broiler farm
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