Timeliness evaluation of task-oriented networked space-based information system

Task-oriented networked information system is an integrated information system which builds on multi-satellite networking to accomplish one or more tasks. In the background of emer- gency relief for applications, system working flow and response process are analyzed, and a timeliness effectiveness evaluation index system is constructed at multi-task level. The effectiveness is a measurement of promptness of information return. In evalua- tion process, system performance and tasks are associated, then an evaluation model based on efficacy function is established, and different evaluation criteria are selected for different tasks. A distributed simulation system is constructed, and the execution of task is decomposed. The simulation platform provides a comprehensive data source for evaluation. The results are easy to compare with each other, which reflects system time efficiency in different satellites networks and provides actual systems with basis and reference for design and application.

Study on the Post-evaluation of Environmental Planning Based on Logical Framework Approach

[Objective] The aim was to conduct post-evaluation on environmental planning by means of logical framework approach. [Method] Taking environmental planning during '11th Five-year Plan' in a certain province for example, by means of logical framework approach (LFA), the post-evaluation on environmental planning was carried out from the aspects of evaluation content, index system, implementation steps, evaluation feedback and input-output analysis of environmental planning. [Result] The post-evaluation on environmental planning by means of LFA achieved expected purpose and various indexes at different stages of environmental planning was assessed, and then corresponding countermeasures were put forward according to the problems which were found by problem tree of environmental planning project. [Conclusion] The study could provide theoretical references for the post-evaluation on environmental planning in future.

A Study on The Timeliness of Credit Rating on Bond Defaults--Evidence from Chinese Bond Market

With the increase of China’s bond issuance and slowdown of the economic growth,the potential credit risks such as bond default in the bond market are gradually emerging.The frequent occurrence of bond defaults and the problem of false credit ratings make bond investors and market participants more cautious about the credit ratings issued by rating agencies.Based on the default bonds from 2016 to 2019,this paper analyzes the adjustment of rating of defaulted bonds by rating agencies before default.It also compares the impact of both the regulatory events and the entrance of international agencies on timeless of credit ratings on default bonds.At the same time,the divergence of rating timeliness between different rating agencies is compared.The research shows that after the unified supervision of regulators and the punishment of Dagong Global Credit Rating Co.Ltd in 2018,the timeliness of rating agencies'downgrading of defaulted bonds has increased significantly;Compared with other rating agencies,the timeliness of rating agencies owned by international rating agencies are better.

Associated Factors to Immunization Timeliness and Completion in Preterm and Low Birth Weight Infants at Essos Hospital Center Yaounde

Introduction: Vaccination is very often delayed in premature and low birth weight infants. However, timely vaccination is even more important in this population because of their increased susceptibility to infection. Objective: To assess immunization practice and factors associated with vaccine promptness and completeness in former preterm and low-birth-weight infants. Methods: We conducted a retrospective analytical cross-sectional study (January 2017 to February 2019). Main Measurement: Promptness and completeness at each contact, Statistical analysis was performed using R software version 3.6.2, logistic regression was used to estimate the Odds Ratio (OR) and their 95% Confidence Interval (CI). Results: We recruited 310 children aged 12 to 36 months born before 37 weeks with low birth weight, 163 (52.6%) of whom were female. Two hundred and fifty-three had received the vaccines at the indicated age, with promptness rate of 81.6%, and 97.7% had completed routine immunization at 9 months. The mean age at vaccination initiation was 6 days ± 11 and the mean weight at vaccination initiation was 2233 g ± 494. High prematurity and very low birth weight were associated with a high rate of vaccine delay: 61.5% [OR: 15.56;(CI: 3.22 - 118.52;p = 0.002)] and 66.7% [OR: 19.19;(CI: 4.67 - 92.52;p < 0.001)] respectively. Distance > 5 km with EHC [OR: 3.48;(CI: 1.68 - 7.47;p = 0.001)] was associated with poor vaccination. Women in common-law unions had the lowest vaccine readiness rate (60.6%), (OR: 3.36;CI: 1.006 - 10.70;p = 0.038). The frequency of occurrence of post immunization adverse events was 24.5%, with fever type in 94.7%. Conclusion: Almost all premature and/or low-birth-weight children hospitalized at Essos Hospital Center had completed routine immunization at 9 months, and the majority had received the vaccines in a timely manner. Similar study is needed in rural area.

Completeness and Timeliness of Hepatitis B Vaccination in Preschool Children: Determinants for Good and Timely Uptake in Libreville, Gabon

Background: Gabon is endemic for hepatitis B, but they have still not reached the WHO goal for Hepatitis B vaccination coverage. We aimed to determine the rate of completeness and timeliness of hepatitis B vaccination among children under 15 years of age in Libreville. Methods: Cross-sectional study conducted over 9 months, including children randomly selected from vaccination centres, nurseries and kindergartens. We collected data on the child, socio-economic characteristics of the families, and dates of administration of hepatitis B vaccines. We determined the compliance of the vaccination dates according to the vaccination start pattern. Results: We included 453 children, of whom 236 were girls, for a sex ratio of 0.92. A total of 87% (95% CI [83.9% - 90.1%]) of children had started and completed their 3 doses of vaccine before the 12th month of age. 149 subjects had received their 3 doses on time according to the original vaccination schedule, i.e. 32.9% (95% CI [28.6% - 37.2%]). Factors significantly associated with completeness were vaccination in a public centre OR = 114 [47.2 - 347] p st dose OR = 3 [1.6 - 5.5] p < 0.001. Age at first dose was the predictor of timeliness aOR = 1.3 (95% CI [1.2 - 1.5] p 0.001). Conclusion: The respect for the vaccination deadlines is insufficient in our context, solutions exist to improve this situation.

Research and Innovative Analysis on the Timeliness and Effectiveness of the University Thought Political Lesson Education Practice

In this paper, we conduct research on the timeliness and effectiveness of university thought political lesson education practice. What person, how to cultivate people is developing the socialist education enterprise in our country must solve fundamental problem. College students is a national valuable human resources, are the hope of nation, the future of our motherland. To make university students grow up to be the cause of socialism with Chinese characteristics qualified builders and reliable successors, we not only need to vigorously improve their scientific and cultural quality, and actively improve their ideological and political quality. College students＇ ideological and the political education content system of the science building is refers to according to the requirements of college students＇ ideological and political education goal, to constitute elements of ideological and political education content should be reasonable configuration, make each other, permeate each other, in order to realize the content of organic integration and collaborative development.

Effect of Corporate Governance Compositions on Financial Reporting Timeliness in Nigerian Deposit Money Banks

This study ascertained the effect of corporate governance compositions on timeliness of financial reporting in deposit money banks in Nigeria.Ex Post Facto research design was employed for this study.Purposive sampling was used to select eight(8)deposit money banks in Nigeria with international authorization.Data were extracted from annual reports and accounts of the sampled banks and analyzed with regression analysis.The results show that board size has a positive and significant effect on financial reporting timeliness deposit money banks in Nigeria,while audit committee independence has a positive but insignificant effect on financial reporting timeliness of deposit money banks in Nigeria.Therefore,on the basis of the findings and conclusions of the study,the study recommends among other things that the number of banks board of directors should play a vital role in how well it can oversee daily operations of the institution and monitor management.

安全科学与工程专业学位课程案例建设及应用——以现代安全管理理论与方法课程为例

针对深化安全科学与工程专业研究生培养模式改革,提高培养质量的指导思想,现代安全管理理论与方法课程强调案例教学实践,选择当今时代主题下的典型案例,并运用多种教学设施和环节相结合、多种评价指标相结合的案例教学模式,让学生能够在案例的阅读、思考、分析和讨论中建立起一套适于己用的独立思考方式和逻辑推理方法,从而实现课程教学目标,为安全科学与工程专业学位研究生实施案例教学提供理论依据与指导。

江苏地震预警信息服务系统分析

对国家地震烈度速报与预警工程江苏预警信息服务系统进行了介绍,分析了2023年6月系统试运行以来的预警信息发布情况。结果显示,预警信息发布的主要延时存在于地震发生到国家一级融合决策系统正式发布预警信息的过程,最短延时为4 s,平均延时为14.358 6 s,江苏省预警系统的预警信息发布各环节延时较少,平均总延时不超过0.9 s,Ⅱ类省级预警中心所在地发生地震后,预警信息发布时延会略长于Ⅰ类。整体来看,江苏地震预警信息服务系统满足时效性要求并具有良好的稳定性,在省预警项目建设完成后,将实现省内破坏性秒级地震预警信息发布与示范服务。

时效性激励对脑梗死合并吞咽障碍患者吞咽功能营养状况及神经功能的影响

目的探讨时效性激励对脑梗死合并吞咽障碍患者吞咽功能、营养状况及神经功能的影响。方法将293例脑梗死合并吞咽障碍患者根据入院建档顺序分为对照组146例和观察组147例。对照组患者给予直接摄食训练,观察组患者在对照组基础上联合时效性激励。观察两组患者干预前后吞咽功能、营养状态[白蛋白(ALB)、前白蛋白(PA)、转铁蛋白(TRF)]、功能恢复情况[美国国立卫生研究院卒中量表(NIHSS)、Barthel指数量表(BI)评分]及并发症。结果干预后两组患者吞咽期通过时间(PTT)、吞咽障碍评分、食管上括约肌(UES)完全开放率以及NIHSS、BI评分均较干预前改善,且观察组优于对照组(P<0.01);两组患者血清ALB、PA、TRF水平均较干预前升高,且观察组高于对照组(P<0.01);观察组患者并发症发生率低于对照组(P<0.01)。结论时效性激励联合直接摄食训练可改善脑梗死合并吞咽障碍患者吞咽功能、神经功能、日常生活能力及机体营养状况,降低并发症发生率。

药学本科课程思政教学实践针对性与时效性的提升

药学本科的教学目标是为了培养具有创制新药、服务于新药、从基础到临床的专业人才。在药学本科教学中融入思政元素,是提升专业技术人才爱国敬业精神的重要手段。以药学本科课程生物药物学的教学实践为例,教学团队运用多种教学方法,将课程思政要素内化,与时代特点及学生需求紧密结合,强化思政塑人效果,以期提升思政教学的针对性和时效性。

论作为时代经典的《1844年经济学哲学手稿》

《1844年经济学哲学手稿》在经典世界以“另一个马克思”的发现而名噪一时。它的经典性在行家和外行的深入研读中常常被诠解,从而产生好的或不好的影响。这部作品的阐释史有两种性质,一种是为我们说它有“出色的”“标准的”“典范的”性质特征而准备的,另一种是为我们说它没有这些性质特征而准备的。它同时见证了塑造经典和失却经典的过程。就其作为解释学的经验事件的经典阐释而言,重要问题在于,这部作品整体统一和严密结构究竟应该如何强调以及应该强调到何种程度。总之,无论如何,我们都应当根据原文发现它跟我们休戚相关的时代关系,要从根本价值分配的思想中塑造出它的经典本质。这部作品是人类解放的先声,而当代研读者的任务就是对它提出更可信的考据和判断。

RM-RT^(2)NI:融合评论时效与可信近邻影响力的推荐模型

基于矩阵分解的推荐模型虽然能够处理高维评分数据,但容易遭受评分数据稀疏性的困扰。基于评分和评论的推荐模型通过外加隐藏在评论中的用户偏好与物品属性信息,缓解了评分数据的稀疏性,但在特征提取时大多没有关注评论时效性和可信近邻影响力,无法获得更丰富的用户和物品特征。为进一步提高推荐精度,提出了融合评论时效与可信近邻影响力的推荐模型RM-RT^(2)NI。基于评分矩阵,该模型使用矩阵分解提取了用户偏好和物品属性的浅层特征,利用云模型和修正的用户相似度评估模型和新构建的信度评估模型提取出可信近邻影响力;基于评论文本,该模型利用BERT模型获得每条评论的隐表达,利用双向GRU提取评论间的联系,利用新构建的融合时间因子的注意力机制识别各评论的时效贡献度,以获取用户和物品的深层特征。在此基础上,将用户浅层特征、深层特征以及可信近邻影响力特征融合成用户特征,将物品浅层特征和深层特征融合成物品特征,并将它们输入全连接神经网络以预测用户-物品评分。在5组公开数据集上对RM-RM-RT^(2)NI的推荐性能进行了实验评估,结果显示,与7个基线模型相比,RM-RT^(2)NI具有更高的评分预测精度,且RMSE平均降低了3.0657%。

考虑物流时效的电商农产品供应链演化博弈研究

针对直播电商背景下农产品供应链中存在的生鲜农产品到货不及时以及消费者购买意向低等问题,对电商平台、物流企业和消费者构建三方演化博弈模型,分析各方的博弈行为和演化稳定策略。根据市场上物流企业存在的时效性较差和较好两种情形,运用MATLAB软件进行数值仿真,探究在不同主播努力水平下影响该动态系统演化趋势及演化稳定策略的关键因素。研究发现:平台押金和物流期望满意值的变化在物流时效性较差时影响物流企业和消费者的策略选择;主播佣金比率和平台增值服务投入与电商平台选择高效运营的概率在物流时效性较好时呈负相关关系;减少消费者增值服务有利于平台长期发展和降本增效。研究结果结合直播电商运营情况对农产品供应链提出建议。

信息多元化时代互联网视觉传播的时效性研究

随着科技水平和现代媒介的进步,信息传播的内容与方式变得多种多样,视觉传播也逐渐呈现出多元化的发展趋势。进入互联网时代,视觉传播的时效性将直接影响人们利用信息的效率和效果,因此,视觉传播的时效性提升已成为当前社会各个行业领域的重要研究方向。信息多元化发展是未来互联网的趋势所向,提升视觉时效性已经成为越来越多的互联网企业品牌的共识,视觉传播时效性的提升对于优化互联网信息的实时体验、增强互联网信息的品质与价值、促进现代互联网信息的高质量发展有重要的现实意义。文章综合分析了视觉传播的时效性对现代信息传播的影响,深入探讨了视觉传播时效性的提升策略。

新时代沂蒙精神阐发问题论析

结合新时代特点对沂蒙精神进行有针对性的阐发,这是更好传承和弘扬沂蒙精神的重要途径。增强新时代沂蒙精神阐发针对性的现实依据是要符合沂蒙精神提出的初衷、进一步发挥沂蒙精神价值功能、进一步践行沂蒙精神、进一步拓展沂蒙精神理论研究。新时代沂蒙精神阐发需要实现沂蒙精神主旨与时代要求契合、彰显价值引领、涵盖沂蒙精神双维度主体的不同特点和要求。新时代沂蒙精神时代性阐发的重要着力点为党群同心、使命担当、崇德尚义和奋发有为。

习近平总书记关于党的自我革命的重要思想研究

党的十八大以来,在全面从严治党的伟大实践中,中国共产党围绕“为什么要自我革命”“为什么能自我革命”“怎样推进自我革命”等系列问题,进行持续的实践探索和理论思考,形成了习近平总书记关于党的自我革命的重要思想。本文认为,深入理解习近平总书记关于党的自我革命的重要思想,需要从时代性、体系性、实践性三个方面系统把握。时代性体现了习近平总书记深刻的问题意识,立足世界之变、时代之变、历史之变深刻回答中国共产党为什么要进行自我革命。体系性体现了习近平总书记深刻的系统思维,“九个以”的提出从内容到逻辑相互衔接、层层递进。实践性体现了习近平总书记对抓落实的重视,实践是检验真理的唯一标准,更是不断深化对党的自我革命的规律性认识,把党的自我革命的思路、举措、环节抓具体、抓深入的重要方法。

内蒙古主要气象灾害预警信息发布时效性评估模型研究

该文分析内蒙古地区近几十年主要气象灾害种类及其影响特点,主要气象灾害可能造成危害程度、紧急程度和发展势态,以及相关气象灾害风险预警的发布标准。选取2021年内蒙古地区气象预警信息发布情况的数据资料,采用统计分析和图表对比等方法,分析对比内蒙古地区气象灾害时空分布及灾害损失分布特征,对预警信息发布的有效性进行检验和评估,结果显示预警信息发布与气象灾害发生的时空分布基本吻合。该文通过对预警信息发布和传播的时效性研究,建立新的适用数学模型,探索较为客观定量分析评估方法,直观反映现有的发布渠道送达率,为发布策略的完善和改进提供科学参考。

时效性激励护理对脑梗塞患者负性情绪、创伤后成长和神经功能恢复的影响

目的:探讨时效性激励护理对脑梗塞患者负性情绪、创伤后成长和神经功能恢复的影响。方法:选取116例脑梗塞患者为研究对象,其中实施常规护理的58例设为对照组,实施时效性激励护理的58例设为观察组。两组均干预至患者出院,比较两组干预前后负性情绪[焦虑自评量标(SAS)和抑郁自评量表(SDS)]、创伤后成长[创伤后成长量表(PTGI)]、治疗依从性、神经功能情况[美国国立卫生院神经功能缺损评分表(NIHSS)]及主观幸福感[总体幸福感量表(GWB)]。结果:干预后,两组SAS及SDS评分均下降(P<0.05),且观察组低于对照组(P<0.05);两组PTGI量表总分及各维度评分均上升(P<0.05),且观察组高于对照组(P<0.05)。观察组治疗依从性优良率为94.83%,高于对照组的82.76%(P<0.05)。干预后,两组NIHSS评分均下降(P<0.05),且观察组低于对照组(P<0.05);两组GWB量表总分及各维度评分均上升(P<0.05),且观察组高于对照组(P<0.05)。结论:时效性激励护理可改善脑梗塞患者负性情绪,提高其创伤后成长及治疗依从性,进而有效改善脑梗塞患者神经功能缺损症状,提升其主观幸福感。

基于场次洪涝灾害的损失函数构建方法

构建洪涝灾害损失函数对于认识洪涝灾害损失的发展规律、提高灾害损失的评估时效性具有重要意义。提出了耦合洪涝致灾因子空间分布的动态模拟、社会经济数据空间化处理、灾害直接和间接损失计算以及曲线拟合的场次洪涝灾害损失函数构建方法,构建了洪涝灾害损失—时间函数,并建立了函数参数的调整策略,在上海市开展了实例研究。研究结果表明:场次洪涝灾害直接经济损失的发展过程呈“S型”曲线的变化特征,可将weibull分布函数作为其损失函数;减停产损失的日变化过程呈“L型”曲线的变化特征,可将双曲递减函数作为其损失函数;产业关联损失的日变化过程呈“倒U型”曲线的变化特征,可将Hoerl函数作为其损失函数;累计产业关联损失约为停产或减产损失的1.77倍,间接经济损失约为直接经济损失的1.29倍;损失函数参数与灾害发生概率多呈非线性的单调递增或递减关系,基于拟合参数的洪涝灾害损失评估相对误差在5%以内。本研究的方法被证实具有较高的模拟精度,为认识洪涝灾害损失的发展规律和提高洪涝灾害损失评估时效性提供了新途径。