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生物育种技术在肉牛遗传育种中的应用 被引量:2
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作者 李昊阳 高雪 +5 位作者 黄荣 彭巍 李俊雅 雷初朝 赵宗胜 黄永震 《中国畜禽种业》 2025年第9期49-55,共7页
生物育种技术是利用分子生物学和生物技术手段,提高动植物的遗传特性、优化性状或培育新品种的一种技术,此技术可以通过解析基因、蛋白质或代谢物等生物特征,明确性状的遗传基础,从而加速传统育种的进程。肉牛产业作为现代畜牧业的重要... 生物育种技术是利用分子生物学和生物技术手段,提高动植物的遗传特性、优化性状或培育新品种的一种技术,此技术可以通过解析基因、蛋白质或代谢物等生物特征,明确性状的遗传基础,从而加速传统育种的进程。肉牛产业作为现代畜牧业的重要组成部分,对乡村振兴具有重要意义,优质肉牛品种的缺乏是制约产业发展的关键因素。该文主要探讨了生物育种技术应用在肉牛育种中的优势与前景,重点分析了传统育种与分子育种结合、分子标记辅助育种、全基因组选择育种、全基因组关联分析育种以及基因编辑育种等技术,旨在通过对多维度基因干预技术的综述分析,为肉牛生物育种提供创新思路和参考,以加速肉牛遗传改良进程,推动肉牛种业向更加精准、高效的方向发展。 展开更多
关键词 生物育种技术 肉牛遗传育种 应用进展
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江汉盆地古近系潜江组盐湖沉积特征与成藏模式 被引量:10
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作者 黄华 袁娟梅 +2 位作者 彭伟 张亮 文辉 《岩性油气藏》 CSCD 北大核心 2021年第2期9-16,共8页
江汉盆地为典型的陆相盐湖盆地,古近系潜江组盐间地层为主力油气产层。为研究其盐湖沉积特征与成藏模式,开展了晚始新世潜江组沉积期的古地貌、古构造和古气候恢复,扫描电镜分析和砂体展布特征研究。结果表明:①江汉盆地潜江组“高山深... 江汉盆地为典型的陆相盐湖盆地,古近系潜江组盐间地层为主力油气产层。为研究其盐湖沉积特征与成藏模式,开展了晚始新世潜江组沉积期的古地貌、古构造和古气候恢复,扫描电镜分析和砂体展布特征研究。结果表明:①江汉盆地潜江组“高山深盆”式古地貌和断层控制下稳定沉积的深凹古构造是盐湖盆地形成的基础,气候以亚热带干旱为主、干湿交替为辅,形成了多韵律沉积;②潜江凹陷潜江组岩性包括碎屑岩、碳酸盐岩、蒸发岩及其混合类型,其中盐类矿物来源于物源区水系携带的风化矿物质和深部热液物质;③研究区常规砂岩和非常规混积岩均见油气产出,常规砂岩油藏具有“源控富集、层控运移、砂控规模”的特征,非常规混积岩油藏具有“沉积控区块、源岩控层位”的特征。该研究成果对盐湖盆地油气勘探具有借鉴意义。 展开更多
关键词 盐湖沉积 古地貌 古环境 古气候 潜江组 古近系 江汉盆地
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自体血液回输在凶险性前置胎盘的应用 被引量:1
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作者 卢云 彭伟 沈海涛 《当代医学》 2018年第36期34-35,共2页
目的探讨分析自体血液回输在凶险性前置胎盘的应用效果。方法选取本院收治的30例凶险性前置胎盘患者作为观察研究。回顾性分析所选患者的临床资料,观察分析所选患者手术前后血液指标及并发症发生情况。结果术后24小时,所选患者的HB、PLT... 目的探讨分析自体血液回输在凶险性前置胎盘的应用效果。方法选取本院收治的30例凶险性前置胎盘患者作为观察研究。回顾性分析所选患者的临床资料,观察分析所选患者手术前后血液指标及并发症发生情况。结果术后24小时,所选患者的HB、PLT、PT、APPT及FIB等血液指标水平与术前对比差异无统计学意义。所选患者自体血采集和回输过程中,有1例患者出现了发热,1例患者出现了皮疹,不良反应发生率为6.67%。结论在凶险性前置胎盘患者剖宫产术中应用自体血液回输方式输血,不仅可以有效维持患者血液的有效循环,同时可以有效降低不良反应发生率,安全性较好。 展开更多
关键词 凶险性前置胎盘 自体血液回输 应用效果
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Methods and Effects of Clinical Nursing Instruction for Psychiatric Practice Nurses
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作者 pengwei YAOZongping +1 位作者 LIAOYong LUBoyu 《外文科技期刊数据库(文摘版)医药卫生》 2022年第2期123-126,共4页
Objective: to explore the application effect and method of clinical nursing instruction in psychiatric practice nurses. Methods: the subjects of the study were all nurses who were practicing in the psychiatric departm... Objective: to explore the application effect and method of clinical nursing instruction in psychiatric practice nurses. Methods: the subjects of the study were all nurses who were practicing in the psychiatric department of our hospital. The study included 30 nurses who were practicing during the period of July 2020 to December 2020 into the study group A, and at the same time carried out routine clinical nursing teaching. 30 nurses who were practicing from July 2021 to December 2021 were included in study group B, and clinical nursing teaching combined with various teaching methods was carried out. After the clinical nursing teaching, the assessment results, specialty ability, thinking and judgment ability and satisfaction with the teaching methods of the two groups of practice nurses were statistically compared. Results: after teaching, the scores of theoretical knowledge and operation skills, specialty ability, thinking and judgment ability and satisfaction with clinical teaching methods of group B were higher than those of group A, and the comparison was statistically significant (P < 0.05). Conclusion: the application of various clinical nursing teaching methods in psychiatric practice nurses can help them to improve their specialized ability, thinking and judgment ability, master clinical operation skills, and thus significantly improve their comprehensive quality, and better provide high-quality clinical nursing services for the majority of patients, and promote the stable development of medical care. In recent years, many nursing schools have listed psychiatry as a practice point. However, nursing students entering psychiatry practice often do not have a deep understanding of the professional knowledge of psychiatry and do not pay enough attention to it. In clinical practice, there are many psychological problems which affect the quality of clinical teaching. According to the psychological characteristics of psychiatric nursing students in different practice stages and the particularity of psychiatric ward, this paper analyzes the psychological state of psychiatric nursing students and discusses the clinical teaching. Improve the comprehensive quality of nursing students, so that they can successfully complete the clinical practice of psychiatry. Therefore, corresponding countermeasures have been taken against the above-mentioned problems and good results have been achieved. 展开更多
关键词 PSYCHIATRY trainee nurse clinical nursing teaching assessment results thinking judgment ability specialist ability comprehensive quality
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Analysis of the Role of Communication Skills in Health Examination and Nursing Care
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作者 pengwei 《外文科技期刊数据库(文摘版)医药卫生》 2022年第10期014-018,共5页
Objective: to analyze the specific application of communication skills in health examination and nursing. Methods: the study object is 200 health examination patients, physical examination time: February 2021-February... Objective: to analyze the specific application of communication skills in health examination and nursing. Methods: the study object is 200 health examination patients, physical examination time: February 2021-February 2022, group basis: nursing method, 100 physical examination of routine care as the control group, 100 physical examination of routine care + communication skills application as the observation group. The comprehensive nursing effect of the two groups was analyzed. Results: the satisfaction rate of the observation group (98.00%) was higher than that of the control group (91.00%) (P 0.05);the observation group was higher (P 0.05);the waiting time and physical examination time were lower (P 0.05);the incidence of adverse events in the observation group was significant (P 0.05). Conclusion: it is of great significance to improve the application of communication skills, to ensure the efficiency and service quality of physical examination, to prevent and reduce the incidence of adverse events, and to improve the comprehensive quality of physical examination services. 展开更多
关键词 health examination nursing services communication skills application value adverse events
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