Landslide susceptibility mapping using an integrated model of information value method and logistic regression in the Bailongjiang watershed,Gansu Province,China

Bailongjiang watershed in southern Gansu province, China, is one of the most landslide-prone regions in China, characterized by very high frequency of landslide occurrence. In order to predict the landslide occurrence, a comprehensive map of landslide susceptibility is required which may be significantly helpful in reducing loss of property and human life. In this study, an integrated model of information value method and logistic regression is proposed by using their merits at maximum and overcoming their weaknesses, which may enhance precision and accuracy of landslide susceptibility assessment. A detailed and reliable landslide inventory with 1587 landslides was prepared and randomly divided into two groups,(i) training dataset and(ii) testing dataset. Eight distinct landslide conditioning factors including lithology, slope gradient, aspect, elevation, distance to drainages,distance to faults, distance to roads and vegetation coverage were selected for landslide susceptibility mapping. The produced landslide susceptibility maps were validated by the success rate and prediction rate curves. The validation results show that the success rate and the prediction rate of the integrated model are 81.7 % and 84.6 %, respectively, which indicate that the proposed integrated method is reliable to produce an accurate landslide susceptibility map and the results may be used for landslides management and mitigation.

Application Effect of Informationized Teaching Method Based on Evidence-based Nursing in Surgical Nursing Teaching

Objective:The study was to analyze the application effect of informationized teaching method based on evidence-based nursing in surgical nursing teaching.Methods:From December 2019 to December 2020,60 students were selected as the research objects and randomly divided into two groups,each with 30 students in the teaching group.The observation group applied informationized teaching based on evidence-based nursing method,and the control group used the traditional teaching model.The teaching effect was evaluated.Results:The test scores of subjective theoretical knowledge and objective theoretical knowledge of the observation group were significantly higher than those of the control group,and the comprehensive ability evaluation of the observation group was also higher(P<0.05).The majority of students accepted the informationized teaching method based on evidence-based nursing,and a few held a neutral or disapproval attitude.Conclusion:Informationized teaching method based on evidencebased nursing can improve students'theoretical and practical levels in surgical nursing teaching,and most students also accept this teaching method,which has application value.

职业教育助力乡村振兴的方法和路径

随着我国乡村振兴战略的提出和实施,职业教育日益凸显其在乡村发展中的重要地位。乡村振兴战略对职业教育提出了新的要求,也为职业教育发展提供了广阔的舞台。在此发展形势下,研究职业教育如何助力乡村振兴具有重要意义。基于此,梳理职业教育助力乡村振兴的理论基础,探讨具体方法和路径,以期为政策制定和实践提供参考。

Glacial debris flow susceptibility mapping based on combined models in the Parlung Tsangpo Basin,China

Machine learning(ML)-based prediction models for mapping hazard(e.g.,landslide and debris flow)susceptibility have been widely developed in recent research.However,in some specific areas,ML models have limited application because of the uncertainties in identifying negative samples.The Parlung Tsangpo Basin exemplifies a region prone to recurrent glacial debris flows(GDFs)and is characterized by a prominent landform featuring deep gullies.Considering the limitations of the ML model,we developed and compared two combined statistical models(FA-WE and FA-IC)based on factor analysis(FA),weight of evidence(WE),and the information content(IC)method.The final GDF susceptibility maps were generated by selecting 8 most important static factors and considering the influence of precipitation.The results show that the FA-IC model has the best performance.The areas with a very high susceptibility to GDFs are primarily located in the narrow valley section upstream,on both sides of the valley in the middle and downstream of the Parlung Tsangpo River,and in the narrow valley section of each tributary.These areas encompass 86 gullies and are characterized as"narrow and steep".

Construction and Development of China’s Earthquake Information Release System

Focused on the current situation,monitoring system,technical management regulation,process,system composition,and information publication of the earthquake information release,we summarized the construction and development of China’s earthquake information release system and expected its future.In general,China’s earthquake information release systems is able to publish auto-results with MS≥3.0 from 1 to 3 minutes,M_S≥6.0 in global from 2 to 30 minutes,and formal results with MS≥3.0 in China from 8 to 30 minutes,MS≥6.0 in global from 20 to 60 minutes.These earthquake information is released by various channels such as short message,website,microblog,mobile application,etc.

Signal-to-noise ratio comparison of angular signal radiography and phase stepping method

Grating-based x-ray phase contrast imaging has the potential to be applied in future medical applications as it is compatible with both laboratory and synchrotron source. However, information retrieval methods are important because acquisition speed, scanning mode, image quality, and radiation dose depend on them. Phase-stepping （PS） is a widely used method to retrieve information, while angular signal radiography （ASR） is a newly established method. In this manuscript, signal-to-noise ratios （SNRs） of ASR are compared with that of PS. Numerical experiments are performed to validate theoretical results. SNRs comparison shows that for refraction and scattering images ASR has higher SNR than PS method, while for absorption image both methods have same SNR. Therefore, our conclusions would have guideline in future preclinical and clinical applications.

政策工具视角下的省级基础教育信息化政策文本分析

目前,虽然教育信息化政策研究已成为学术界关注的热点,但针对其研究多聚焦于国内外教育信息化政策比较、国家教育信息化政策文本分析等层面,对省级教育信息化政策的关注度不够。基于此,文章以9省(自治区、直辖市)公开发布的基础教育信息化政策文本为研究对象,首先在分析政策工具及其应用研究现状的基础上,构建了基于“政策工具—政策时间”的政策文本分析框架;然后通过内容编码,分析了省级基础教育信息化政策文本中政策工具选用的现状和特点;最后从政策工具的系统化设计、供给型和环境型政策工具的内部结构、需求型政策工具的使用方面,提出了基础教育信息化政策改进建议,以期为进一步优化我国省级基础教育信息化政策供给提供参考。

Trends of Inequalities in the Use of Long-Term Reversible Contraceptives in Burkina Faso between 2010 and 2015

Background: Efforts have been made in Burkina Faso, a French-speaking country, since 2010 to improve healthcare access and provide affordable contraceptive methods to women. With the increasing prevalence of modern contraceptives in Burkina Faso, it is important to examine the socio-demographic factors that contribute to this new pattern of contraceptive use. This study aims to analyze the changes in socio-demographic factors associated with long-term contraceptive use and provide scientific evidence to guide policy development and action planning in family planning. Data and Methods: We utilized data from the 2010 Demographic and Health Survey, which included 17,087 women aged 15 - 49 years, and the 2015 Demographic and Health Module, which included 11,504 women in the same age group. For the analysis of contraceptive use, we focused on women who were in need of contraception (either met or unmet), of reproductive age, non-pregnant, and either married or sexually active but not married. We included users of modern reversible methods and excluded non-users, as well as users of traditional or permanent methods. Results: Our findings revealed a high prevalence of long-term contraceptive use across all categories;however, certain challenges were identified, such as lower levels of information about contraceptive methods among users and the persistence of inequalities. Family planning discussions and partner approval did not influence long-term contraceptive choice. Additionally, some providers selectively offered specific methods based on women’s life course characteristics, such as parity and marital status, despite evidence suggesting that young and nulliparous women can effectively use long-term methods. Conclusion: Given the high effectiveness of long-term contraceptive methods, it is crucial to address barriers that hinder their utilization among young and nulliparous women, as well as those who desire to delay pregnancy. Efforts should focus on improving knowledge and dispelling misconceptions surrounding long-term methods. Providers play a pivotal role in this process by adopting counseling strategies that enhance users’ understanding and facilitate informed decision-making regarding contraceptive options.

新工科背景下专业研究生案例教学探索——以“现代食品药品质量检测技术”课程为例

面对新工科背景下高等教育创新改革的强烈需求,以“现代食品药品质量检测技术”研究生课程为例,进行了案例教学探索。对于教学案例的选择,提出了需要遵循的四点要求:联系区域经济发展和行业需求;保证学生的可操作性;便于融入课程思政元素;遵循OBE理念。在案例教学活动的具体开展中,进一步结合现代教育理念和现代化信息技术,对教学内容、教学模式、教学管理和考核方式进行了改革,以增强案例教学的优点,培养价值观正确、具有扎实理论知识和实践技能、拥有开阔视野和创新潜力的高层次专业优秀人才。

吉林省城乡信息化融合发展水平研究

本文以吉林省为研究对象,探索其城乡信息化融合水平,对其所处融合发展阶段提出对策建议。首先,立足于吉林省城乡信息化融合发展现状;其次,构建城乡信息化融合发展水平评价体系,本文选择了4个子系统,共17个指标,对吉林省2016—2020年指标数据运用熵值法计算各指标权重及各子系统及综合得分,结果显示近5年吉林省处于城乡信息化融合发展阶段;最后,对融合发展提出对策建议。

信息化学习方式的理论阐释

所有真正的理论都是实践的,所有的实践也都是理论的。真正的理论是能够指导和解释人类实践活动的,人的实践活动也都具有理论前提。因此,任何人类实践活动方式的进步都不是偶然的,都可以找到理论的出处,也都可以接受理论的解释。本文试图从理论阐释的视角来认识信息化学习方式,力图由此探视到存在于信息化学习方式背后的秘密。

探讨实现农业信息化的有效途径

农业信息化是实现农业现代化的重要手段和多功能载体 ,它已成为当代农业现代化的重要标志和关键 ,因此 ,实现农业现代化是农业发展的必然趋势。笔者通过对农业信息化给农业发展带来的巨大变革 ,以及农业现代化中存在的问题的阐述 ,探讨了实现农业信息化的有效途径。

走在十字路口的教育技术研究——教育技术研究的反思与转型

当前教育信息化如火如荼,学习科学备受瞩目,但教育技术研究者在教育信息化大舞台中的声音却越来越小,在自己的主场领域中已处在了边缘位置。我国教育技术的研究正走在一个面临变革的十字路口,这种变革并非体现在紧紧跟随新技术的研究潮流,而是基于对教育技术核心理论的追寻,对研究的反思上。时代对教育技术研究提出了哪些诉求?我们应该研究什么?怎么研究?如何使研究成果变为教育生产力?文章从时代背景、教育技术学的知识基础、研究取向、研究方法论、研究成果转化等方面进行了系统的分析,阐释了自己的观点。

我国农业信息化水平的测度及影响因素分析

从定量角度通过对我国农业信息化水平进行测度,分析了我国农业信息化的现状。利用回归分析法分析了影响农业信息化水平的四种信息因素与农业产值之间的关系,以此判定这四种主要影响因素对农业产值的影响程度。

论非物质文化遗产档案信息化建设的原则与方法

非遗档案信息化是近年来文化事业机构关注的重要工作之一。但由于目前尚未形成统一的规划和标准,多头管理、各自为政、重复建设的情况还较为严重,因此,需要从原则和方法两个层面进行规范。本文作者首先分析了非遗档案信息化建设的原则,将其概括为"统一领导,分级管理"、"维护‘本真’,适当优先"、"慎用技术,确保通用"、"重视效益,保障安全"四个方面。其次,作者从面向公众需求的非遗档案网站建设、面向长期保存的非遗档案数据库的整合两个方面论述了非遗档案信息化建设的方法。最后,作者从机制、标准和知识产权三个方面阐述了非遗档案信息化建设的注意事项。

基于综合指数法的农业信息化水平评价——以山东省为例

采用综合指数法构建了农业信息化水平评价模型,并利用该模型对山东省农业信息化水平进行评价。结果表明,2003—2012年山东省农业信息化水平一直呈上升趋势,而农业生产信息化、农业经营信息化虽然呈现出增长的趋势,但都处在相对较低的水平,山东省发展农业信息化的过程中应重点建设这两方面。

基于TPACK模型的教师信息化教学能力评价研究

开发科学有效的教师信息化教学能力评价方案对于提升教师信息化教学能力至关重要。在综合考察信息化教学能力核心内涵的基础上提出了教师信息化教学能力评价指标,并基于TPACK理论模型,确定指标之间的结构关系及权重计算模型。在此基础上,对某师范大学的2012级汉语言文学专业职前教师的信息化教学能力进行评价。研究结果表明,相比教学能力而言,职前教师的技术能力偏低,且在整合技术与教学内容方面表现欠佳。

医院信息化水平综合评价方法的研究

本文从组织方法的角度,探讨了开展医院信息化水平综合评价方法的选择原则、运用方法的策略和应用评价方法的论点等,为在实施评价前制定评价规则、工作程序。

高职院校课堂信息化教学手段应用思考

以炭素加工技术专业的教学为例,分析了高职学生的学习特点和传统教学的问题,提出了信息化教学模式,全面阐述了信息化教学的发展、各类信息化手段在实际教学中的应用,以及信息化教学的特点和对教师教学能力的提高及促进作用。

论南京城市信息化建设的背景与措施

城市信息化的关键是城市工业的信息化 ,没有传统产业的信息化改造 ,没有高科技产业的信息化建设 ,就没有真正意义上的城市信息化。信息化可以推动城市现代化 ,信息化可以改变城市管理方式、生产方式和生活方式 ,提高城市管理效率 ,促进城市产业结构升级 ,推动社会生活的文明化。可以促进电子政务的发展 ,提升政府管理效率 ,优化社会发展环境。南京应当通过加强组织领导 ,发展信息产业 ,建设实验小区 ,加速城市信息化步伐 ,构建城市信息化良好形象。