The Study on College English Writing Based on Multi-dimensional Feed-back Mode

The study constructed a multi-dimensional feedback mode integrating teacher feedback, peer feedback and network feedback, and applied it in the teaching of College English Writing. After 16 weeks of teaching, the students in the multi-dimen-sional feedback class had significantly better overall writing scores than those in the teacher-feedback class. In terms of individual scores, multi-dimensional feedback played a better role in improving vocabulary and grammar than the class using teacher feed-back. However, there were no significant differences in the responses of writing tasks, coherence and cohesion. The study showed that most students were satisfied with the mode, believing that it was helpful to relieve writing anxiety, stimulate writing interest and improve their writing level.

Analysis of entropies based on empirical mode decomposition in amnesic mild cognitive impairment of diabetes mellitus

EEG characteristics that correlate with the cognitive functions are important in detecting mild cognitive impairment(MCI)in T2DM.To investigate the complexity between aMCI group and age-matched non-aMCI control group in T2DM,six entropies combining empirical mode decomposition(EMD),including Approximate entropy(ApEn),Sample entropy(SaEn),Fuzzy entropy(FEn),Permutation entropy(PEn),Power spectrum entropy(PsEn)and Wavelet entropy(WEn)were used in the study.A feature extraction technique based on maximization of the area under the curve(AUC)and a support vector machine(SVM)were subsequently used to for features selection and classi¯cation.Finally,Pearson's linear correlation was employed to study associations between these entropies and cognitive functions.Compared to other entropies,FEn had a higher classification accuracy,sensitivity and specificity of 68%,67.1% and 71.9%,respectively.Top 43 salient features achieved classification accuracy,sensitivity and speci¯city of 73.8%,72.3% and 77.9%,respectively.P4,T4 and C4 were the highest ranking salient electrodes.Correlation analysis showed that FEn based on EMD was positively correlated to memory at electrodes F7,F8 and P4,and PsEn based on EMD was positively correlated to Montreal cognitive assessment(MoCA)and memory at electrode T4.In sum,FEn based on EMD in righttemporal and occipital regions may be more suitable for early diagnosis of the MCI with T2DM.

Multi-dimensional database design and implementation of dam safety monitoring system

To improve the effectiveness of dam safety monitoring database systems, the development process of a multi-dimensional conceptual data model was analyzed and a logic design wasachieved in multi-dimensional database mode. The optimal data model was confirmed by identifying data objects, defining relations and reviewing entities. The conversion of relations among entities to external keys and entities and physical attributes to tables and fields was interpreted completely. On this basis, a multi-dimensional database that reflects the management and analysis of a dam safety monitoring system on monitoring data information has been established, for which factual tables and dimensional tables have been designed. Finally, based on service design and user interface design, the dam safety monitoring system has been developed with Delphi as the development tool. This development project shows that the multi-dimensional database can simplify the development process and minimize hidden dangers in the database structure design. It is superior to other dam safety monitoring system development models and can provide a new research direction for system developers.

基于K-modes的安全算法抵御SSDF攻击

为保障频谱感知安全,针对协作频谱感知中频谱感知数据篡改攻击,在集中式认知无线电网络中提出了一种基于K-modes的安全算法抵御此类攻击。利用K-modes算法对在融合中心收集到的次用户感知报告进行分类,在识别并剔除攻击者后,最后通过低复杂度的传统投票规则获得更高的网络感知性能。通过Python仿真,分析该算法在不同条件下对攻击者的识别性能,并验证该算法比传统防御算法的检测概率提高了约37%。

Cognitive Radio Sensing Using Hilbert Huang Transform

Vast segments of the frequency spectrum are reserved for primary (licensed) users. These legacy users often un-der-utilize their reserved spectrum thus causing bandwidth waste. The unlicensed (secondary) users can take advantage of this fact and exploit the spectral holes (vacant spectrum segments). Since spectrum occupancy is transient in nature it is imperative that the spectral holes are identified as fast as possible. To accomplish this, we propose a novel adaptive spectrum sensing procedure. This procedure scans a wideband spectrum using Hilbert Huang Transform and detects the spectral holes present in the spectrum.

Wireless Regional Area Networks and Cognitive Radio(1)

IEEE has set up in October 2004 the IEEE802.22 Working Group—Wireless Regional Area Network (WRAN) Task Force to work out air interface standard based on Cognitive Radio (CR) technologies. The standard includes Physical Layer (PHY) and Media Access Control (MAC),to use the already allocated fallow spectrums to broadcast TV in a non-interference way. The WRAN employs CR technologies to sense and estimate the television frequencies and use the technologies of dynamic spectrum management to find and then allocate idle spectrums. The CR technologies are representing one of the major trends for future wireless communications. This article on WRANs and CR technologies will be divided into two issues. In this issue,WRANs and IEEE 802.22,CR technologies are introduced. And the second part in the next issue will analyze the applications of CR technologies.

An Analysis of Foreign Language Learning Styles from the Cognitive Perspective

From the 1970s,learning styles began to enter the domain of foreign language learning researches.Foreign language learning style is often regarded as a significant factor attributing to individual differences among language learners.Nowadays,many researchers begin studying individual learners'characteristics and exploring how different learners interact with external factors from cognitive perspective.The field-independence/dependence construct became a focus.Based on previous studies,the paper is committed to analyzing the nature of FID learners.It is expected that this research can establish a well-grounded basis for following studies.

Spatial Models in Thinking and Communication

Spatial models joint external and internal aspects of human activity,mental schemas of thinking,and spatial structures of things.These models represent objects of knowledge,valuation,and transformation due to similarity with them in various relations,and they participate in inter-subject communication using schemata common for many people.The spatial models can reproduce a modelled object or be productive regarding it.These models are created in cognitive modus of comprehension as images of objects known at various mental levels;in projective modus,they appear as projects of object’s transformation and planes of subject’s actions;in communicative modus,they are interpreted as spatial texts expressing certain senses.All of them interact in spatial thinking,which deals with the relationship of parts and the whole,unlike logical thinking operating with genus-species relations.Both practical and theoretical thinking use common spatial schemas as means of internal modelling,which are elaborated in collective and individual experience.Due to their simplicity and unification,these schemas can serve also as units of spatial codes mediating the objects representation and inter-subject communication through spatial texts created in the semiotized space.

静息态功能磁共振成像在血管性认知障碍患者默认网络研究中的应用进展

血管性认知障碍是由脑血管疾病导致的一种从轻度认知功能障碍至痴呆的综合征,由于缺乏敏感性和特异性生物标志物,早期不易鉴别和诊断。血管性认知障碍患者脑网络连接异常的脑区多位于默认网络,其异常变化的功能连接与患者的认知障碍程度相关。静息态功能磁共振成像技术是一种常用的检测静息态大脑内在活动的方法,应用静息态磁共振不同分析技术探索血管性认知障碍患者默认网络异常变化有助于深入研究血管性认知障碍的发病机制,并提供客观的影像依据。该文主要综述静息态功能磁共振成像技术在血管性认知障碍患者默认网络研究中的应用成果,为血管性认知障碍的精准诊断和评估提供新思路。

基于问题探索的文献导读教学模式探析

依据认知失调理论和认知主义教学理论,提出基于问题探索为核心的文献导读教学模式。该教学模式以与课程教学目标紧密联系的问题意识培养为核心,以文献导读为手段,用“起惑——文献推荐——探索——解惑”的逻辑思路重构教学流程,实现高等教育课程教学完整性、互动性、高深性的教学要求。

基于护士主导的家属支持模式结合目标导向性护理对胆囊炎患者疾病认知及健康行为水平的影响

目的 探究基于护士主导的家属支持模式结合目标导向性护理对胆囊炎患者疾病认知及健康行为水平的影响。方法 将2021年1月至2023年1月收治的1 300例胆囊炎患者随机分为对照组和观察组,每组650例。对照组采用常规护理干预,观察组在对照组基础上增加基于护士主导的家属支持模式结合目标导向性护理干预。比较两组的干预效果。结果 干预后,观察组患者家属的疾病认知程度评分高于对照组(P<0.05)。干预后,观察组的健康促进生活方式量表-Ⅱ(HPLP-Ⅱ)各维度得分均高于对照组(P<0.05)。干预后,观察组的世界卫生组织生存质量测定量表简表(WHOQOL-BREF)各维度评分均高于对照组(P<0.05)。结论 基于护士主导的家属支持模式结合目标导向性护理不仅能够提高胆囊炎患者家属的疾病认知水平,还能帮助患者养成良好的健康行为,从而改善生活质量。

领导底线心智对员工知识破坏行为的影响机制

竞争激烈的职场环境使得员工的知识破坏问题日趋明显,严重损害组织可持续发展。以两阶段配对的772份问卷为样本,基于认知-情感系统理论,从员工认知和情感两条路径探究领导底线心智对员工知识破坏行为的影响机制。研究表明,领导底线心智通过违反规范可接受感知与职场焦虑引发员工知识破坏行为,相较于情感路径(职场焦虑),认知路径(违反规范可接受感知)的影响更显著;高水平合作氛围不仅会弱化领导底线心智对违反规范可接受感知和职场焦虑的影响,而且会削弱领导底线心智通过二者对员工知识破坏行为的传导作用。研究结论对保护员工与组织免受知识破坏侵害具有指导价值。

基于循证医学的运动模式对老年轻度认知障碍患者心理状态及社会功能的影响

目的 分析基于循证医学的运动模式对老年轻度认知障碍(MCI)患者心理状态及社会功能的影响。方法 选取2021年8月至2023年4月安徽省两组芜湖市第四人民医院住院治疗的老年MCI患者120例,根据简单随机法分为对照组和观察组,各60例。对照组接受常规综合干预,观察组在对照组基础上采用基于循证医学的运动模式干预,持续10周。比较两组干预前后认知功能、社会功能及心理状态。结果 干预10周后,两组简易智能精神状态检查量表、蒙特利尔认知评估量表、改良Barthel指数、费城老年中心信心量表评分均高于干预前,且观察组高于对照组(P<0.05);两组汉密尔顿焦虑量表、汉密尔顿抑郁量表评分均低于干预前,且观察组低于对照组(P<0.05)。结论 基于循证医学的运动模式有助于提高老年MCI患者的认知功能,改善其社会功能和心理状态。

“互联网+”聚焦解决模式护理对慢性支气管炎患者健康知识认知水平的影响

目的探讨“互联网+”聚焦解决模式护理对慢性支气管炎患者健康知识认知水平的影响。方法将80例慢性支气管炎患者随机分为两组,对照组应用常规护理,观察组实施“互联网+”聚焦解决模式护理。比较两组的自护能力、生活质量、健康知识认知水平评分、护理满意度。结果护理后,观察组ESCA、SF-36及健康知识认知水平评分均高于对照组(P<0.05)。观察组护理满意度为97.50%,高于对照组的77.50%(P<0.05)。结论“互联网+”聚焦解决模式护理在慢性支气管炎患者中的应用效果较好,可提升其自护能力、生活质量、健康知识认知水平及护理满意度,值得推广应用。

中西认知模式差异对中国白酒国际接受度的影响

中国白酒在中国传承千年,深入中国人民生活的方方面面。中国白酒在国际上的认可度却不高,其根本原因在于西方人民对于中国白酒的认知模式和中国人民完全不同。本文认为中国白酒不仅仅是一种烈性酒精饮料,它还体现了儒家文化“天人合一”“和谐共生”的精神内涵,契合了当下后现代主义思潮第二次启蒙提出的“尚和精神”的精神价值。本文从中国白酒体现出的人与自然和谐共存、人与人和谐共处、人自身身心和谐共生的三个方面探讨了中国人民对中国白酒的认知模型,通过比较中西认知模式的差异以期帮助中国白酒文化对外传播,提高世界对中国白酒的了解和接受。

罗伊适应模式对青少年抑郁障碍患者认知情绪调节的效果

目的探讨罗伊适应模式在青少年抑郁障碍患者中的应用效果。方法选取2020-01—2023-01安徽医科大学附属巢湖医院收治的100例青少年抑郁障碍患者,根据随机数字表法分为对照组和观察组,每组50例。所有患者均予以常规抗抑郁药治疗,对照组在此基础上采取常规临床干预措施,观察组在对照组基础上采取罗伊适应模式下的综合干预措施。观察2组干预前和干预4周后的认知情绪调节方式、抑郁程度和生活质量。结果干预后2组认知情绪调节问卷中文版(CERQ-C)量表自我责备、沉思、灾难化和责备他人评分均低于干预前,且干预后观察组低于对照组,差异均有统计学意义(分别为t=2.954、4.255、4.094、2.059,P<0.05)。2组干预后积极重新关注、重新关注计划、积极重新评价和理性分析评分均高于干预前,且观察组干预后高于对照组,差异均有统计学意义(分别为t=3.869、4.042、4.644、3.151,P<0.05)。干预后观察组贝克抑郁量表第2版(DI-Ⅱ)抑郁程度明显轻于对照组,差异有统计学意义(Z=2.453,P<0.05)。干预后2组12条目简短生命质量量表(SF-12)心理健康总测量因子(MCS)评分均高于干预前,且观察组高于对照组,差异有统计学意义(t=2.322,P<0.05)。结论罗伊适应模式下的综合干预能够改善青少年抑郁障碍患者认知情绪调节方式,缓解抑郁症状,提高生活质量。

单位刑事归责过程中须避免的四种关系认知陷阱

当前,我国理论界与司法实践对单位犯罪主体的关系结构存在着互斥、依存、包容、同化四种传统认知模态。这些认知严重偏离打击和预防单位犯罪的立法目的,导致了对单位犯罪处罚上的不周延和量刑上的不均衡,致使刑法在社会治理过程中的规范确证机能难以发挥,甚至引发了对单位犯罪制度的抵触。在涉案企业刑事合规改革逐渐深化的背景下,单位犯罪的理论根据应当由行为刑法观教义学逻辑下的替代责任论转向归咎的刑事责任逻辑下的组织体固有责任论,并以后者为基础建立组织体、直接负责的主管人员、其他直接责任人员“三元分离、平行追责”的刑事责任关系模式。

急性脑卒中患者实施“集束化+中医情志”护理模式效果研究

目的:观察“集束化+中医情志”护理模式在急性脑卒中患者中的应用效果。方法:选择2021年1月至12月确诊为急性脑卒中的患者100例作为观察组,行“集束化+中医情志”护理模式,对照组为既往行急诊科急性脑卒中常规护理的患者100例。对两组患者护理干预前后的简易精神状态检查(mini mental status examination,MMSE)、日常生活活动能力(activities of daily living,ADL)、护理满意度进行评价。结果:观察组患者的MMSE、ADL得分均有改善(P<0.05),且观察组改善优于对照组(P<0.05),观察组护理满意度高于对照组(P<0.05)。结论:对急性脑卒中患者行“集束化+中医情志”护理模式,能提高患者的生活质量,提高护理满意度,值得推广。

基于知信行模式的护理在流行性出血热患者中的应用效果

目的:探讨基于知信行模式的护理在流行性出血热患者中的应用效果。方法:回顾性分析2019年4月至2022年4月该院收治的98例流行性出血热患者的临床资料,根据护理方法不同将其分为对照组和观察组各49例。对照组实施常规护理,观察组实施基于知信行模式的护理。比较两组护理前后疾病认知情况、负性情绪[汉密尔顿焦虑量表(HAMA)、汉密尔顿抑郁量表(HAMD)]评分、症状缓解时间、住院时间及护理满意度。结果:护理后,观察组疾病认知量表中发病原因、临床表现、个人防护和注意事项等维度评分均高于对照组,HAMA、HAMD评分均低于对照组,尿蛋白转阴时间、退热时间、血小板恢复正常时间、血压恢复正常时间及住院时间均短于对照组,差异有统计学意义(P<0.05);观察组护理满意度为95.92%(47/49),高于对照组的83.67%(41/49),差异有统计学意义(P<0.05)。结论:基于知信行模式的护理用于流行性出血热患者可提高其对疾病认知,缓解不良情绪,缩短症状缓解时间和住院时间,提高患者护理满意度。