In the wake of great expansion of cities as centers of production,the post-industrialization era saw American urban tran-sitions and transformations with cultural diversification highlighting consumption,service,marke...In the wake of great expansion of cities as centers of production,the post-industrialization era saw American urban tran-sitions and transformations with cultural diversification highlighting consumption,service,marketing and cultural integration.Cul-tural variations in cities,under the influence of non-material production,constantly worked for urban re-invention and urban re-newal,facilitating and expediting a high-level urban development.展开更多
Genetic and metabolic engineering approaches are powerful tools for improving the tolerance of maize to abiotic stresses because they are faster and can afford greater control over agronomically useful traits. However...Genetic and metabolic engineering approaches are powerful tools for improving the tolerance of maize to abiotic stresses because they are faster and can afford greater control over agronomically useful traits. However, in-depth understanding of the molecular mechanisms controlling response to abiotic stresses is the prerequisite for successful implementation of these strategies. A great flaw to dissect the biological mechanisms by genome sequencing is that genome sequencing approach could not reflect real-time molecular actions of plants especially under the stresses because the living organisms rarely live in unchanging environments. Post-genomics such as transcriptomics, metabolomics, and proteomics can generate knowledge that is closer to the biological processes. With the development of post-genomics, it can be expected that voluminous data will be generated. This paper proposes that future research on maize stress tolerance in the era of post-genomics should focus on metabolomics and proteomics; stress tolerance of whole plant rather than individual tissues or organs; coordination of expression of genes among tissues; characterization of promoters of stress-responsive genes; interrelation between mechanisms for tolerance to, and growth recovery from the stress; hexose metabolism as well as the glycolysis pathway; and foundation genotypes.展开更多
Chi Zijian’s novel White Snow Crow is about the pestis in Northeast China from the autumn and winter of 1910 to the spring of 1911,focusing on the living conditions of people in Fujiadian,Harbin,under the shadow of t...Chi Zijian’s novel White Snow Crow is about the pestis in Northeast China from the autumn and winter of 1910 to the spring of 1911,focusing on the living conditions of people in Fujiadian,Harbin,under the shadow of the pestis,and thus connects the vicissitudes of Harbin in the development of modern Chinese history.Re-reading this novel in the context of the post-epidemic era not only allows us to immerse ourselves in the specific temporal and spatial fields described in the text with an immersive reading mindset,feel the heavy impact that the disaster has brought to the people of Northeast China,but also provide us with a different perspective to observe the current social reality.In particular,the social problems shown by the novel through the pestis and the description of ordinary people’s life experience under the plague still deserve further discussion.展开更多
The study aims to learn about the psychological health and counseling situation of nursing students in the post-pandemic era through investigation on the psychological health, resilience and counseling demand of nursi...The study aims to learn about the psychological health and counseling situation of nursing students in the post-pandemic era through investigation on the psychological health, resilience and counseling demand of nursing students by randomly selecting clinical nursing students interned in a Grade III Level A hospital in Guangzhou from June 2020 to January 2021 as the objects of study. The internship can be divided into three stages: initial (1st - 3rd month), middle (4th - 7th month) and final (8th - 12th month). The investigator educated the nursing students about psychological health in the initial stage to improve their adaptability to clinical practice. Then they were given questionnaires including Symptom Checklist 90 (SCL-90), Connor-Davidson Resilience Scale (CD-RISC) and general questionnaires. And this study further completed difference analysis on psychological health and resilience in gender, educational background, internship stages and non-only/only children. It turned out that all factors scored above the national norm except anxiety in nine symptom clusters and three dimensions of CD-RISC. As for the scores of four factors of somatization, interpersonal relationship, hostility and bigotry and three dimensions of tenacity, optimism and strength in the CD-RISC, the difference was considered to indicate statistical significance (P < 0.001). Among factors affecting the psychological health of clinical nursing students, score differences involving somatization and compulsion (P < 0.001, P < 0.05) under different educational backgrounds showed statistically significant. With regard to different clinical stages, there were significant differences in somatization, compulsion, tenacity and strength (P < 0.001, P < 0.05). Finally, the conclusion is drawn that, during the period of pandemic prevention and control, the overall psychological status of clinical nursing students was good, but there remain part of cases with mild psychological problems that cannot be ignored. In the post-pandemic era, it is necessary to strengthen the awareness of teaching groups of clinical hospitals to psychological counseling for nursing students.展开更多
文摘In the wake of great expansion of cities as centers of production,the post-industrialization era saw American urban tran-sitions and transformations with cultural diversification highlighting consumption,service,marketing and cultural integration.Cul-tural variations in cities,under the influence of non-material production,constantly worked for urban re-invention and urban re-newal,facilitating and expediting a high-level urban development.
基金supported by the National Basic Research Program of China(2011CB100100)the 948 Program from the Ministry of Agriculture of China (2001-205)+2 种基金the Development Programs for Guangxi Science and Technology Research, China(Guikegong 10100005-4 and 0228019-6)the Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, China (Director’s grant-06-11)the Opening Project of Guangxi Key Laboratory of Subtropical Bioresource Conservation and Utilization, China (SB0601)
文摘Genetic and metabolic engineering approaches are powerful tools for improving the tolerance of maize to abiotic stresses because they are faster and can afford greater control over agronomically useful traits. However, in-depth understanding of the molecular mechanisms controlling response to abiotic stresses is the prerequisite for successful implementation of these strategies. A great flaw to dissect the biological mechanisms by genome sequencing is that genome sequencing approach could not reflect real-time molecular actions of plants especially under the stresses because the living organisms rarely live in unchanging environments. Post-genomics such as transcriptomics, metabolomics, and proteomics can generate knowledge that is closer to the biological processes. With the development of post-genomics, it can be expected that voluminous data will be generated. This paper proposes that future research on maize stress tolerance in the era of post-genomics should focus on metabolomics and proteomics; stress tolerance of whole plant rather than individual tissues or organs; coordination of expression of genes among tissues; characterization of promoters of stress-responsive genes; interrelation between mechanisms for tolerance to, and growth recovery from the stress; hexose metabolism as well as the glycolysis pathway; and foundation genotypes.
文摘Chi Zijian’s novel White Snow Crow is about the pestis in Northeast China from the autumn and winter of 1910 to the spring of 1911,focusing on the living conditions of people in Fujiadian,Harbin,under the shadow of the pestis,and thus connects the vicissitudes of Harbin in the development of modern Chinese history.Re-reading this novel in the context of the post-epidemic era not only allows us to immerse ourselves in the specific temporal and spatial fields described in the text with an immersive reading mindset,feel the heavy impact that the disaster has brought to the people of Northeast China,but also provide us with a different perspective to observe the current social reality.In particular,the social problems shown by the novel through the pestis and the description of ordinary people’s life experience under the plague still deserve further discussion.
文摘The study aims to learn about the psychological health and counseling situation of nursing students in the post-pandemic era through investigation on the psychological health, resilience and counseling demand of nursing students by randomly selecting clinical nursing students interned in a Grade III Level A hospital in Guangzhou from June 2020 to January 2021 as the objects of study. The internship can be divided into three stages: initial (1st - 3rd month), middle (4th - 7th month) and final (8th - 12th month). The investigator educated the nursing students about psychological health in the initial stage to improve their adaptability to clinical practice. Then they were given questionnaires including Symptom Checklist 90 (SCL-90), Connor-Davidson Resilience Scale (CD-RISC) and general questionnaires. And this study further completed difference analysis on psychological health and resilience in gender, educational background, internship stages and non-only/only children. It turned out that all factors scored above the national norm except anxiety in nine symptom clusters and three dimensions of CD-RISC. As for the scores of four factors of somatization, interpersonal relationship, hostility and bigotry and three dimensions of tenacity, optimism and strength in the CD-RISC, the difference was considered to indicate statistical significance (P < 0.001). Among factors affecting the psychological health of clinical nursing students, score differences involving somatization and compulsion (P < 0.001, P < 0.05) under different educational backgrounds showed statistically significant. With regard to different clinical stages, there were significant differences in somatization, compulsion, tenacity and strength (P < 0.001, P < 0.05). Finally, the conclusion is drawn that, during the period of pandemic prevention and control, the overall psychological status of clinical nursing students was good, but there remain part of cases with mild psychological problems that cannot be ignored. In the post-pandemic era, it is necessary to strengthen the awareness of teaching groups of clinical hospitals to psychological counseling for nursing students.
