Literature overview of basic characteristics and flotation laws of flocs

Flocculation flotation is the most efficient method for recovering fine-grained minerals,and its essence lies in flotation and recovery of flocs.Fundamental physical characteristics of flocs are mainly determined by their apparent particle size and structure(density and morphology).Substantial researches have been conducted regarding the effect of floc characteristics on particle settling and water treatment.However,the influence of floc characteristics on flotation has not been widely studied.Based on the floc formation and flocculation flotation,this study reviews the fundamental physical characteristics of flocs from the perspectives of floc particle size and structure,summarizing the interaction between floc particle size and structure.Moreover,it thoroughly discusses the effect of floc particle size and structure on floc floatability,further revealing the influence of floc characteristics on bubble collision and adhesion and elucidating the mechanisms of interaction between flocs and bubbles.Thus,it is observed that floc particle size is not the only factor influencing flocculation flotation.Within the appropriate apparent particle size range,flocs with a compact structure exhibit higher efficiency in bubble collision and adhesion during flotation,thereby resulting in enhanced flotation performance.This study aims to provide a reference for flocculation flotation,targeting the development of more efficient and refined flocculation flotation processes in the future.

On the “Online and Offline Blended Teaching” Mode for Ideological and Political Theory Courses in Universities—A Case of “Introduction to Basic Principles of Marxism”

With the deepening development of educational informatization, online and offline blended teaching, as a new teaching mode, is increasingly receiving widespread attention from educators [1]. At present, the reform of the “online and offline blended teaching” of ideological and political education courses directly affects the quality of talent cultivation in universities. The article takes the course “Introduction to Basic Principles of Marxism” as an example to explore the reform mode of “online and offline blended teaching” in ideological and political theory courses in universities from the aspects of reasonable allocation of class hours, design of online teaching activities, how to deepen classroom teaching offline, and diversified assessment modes. Furthermore, the article summarizes the experience of mode reform and promotes the deep development of the people-oriented education concept in ideological and political courses in universities, so as to achieve the ultimate goal of moral education in ideological and political education in universities.

Availability of basic life support courses for the general populations in India, Nigeria and the United Kingdom: An internet-based analysis

BACKGROUND:The number of lay people willing to attempt cardiopulmonary resuscitation(CPR)in real life is increased by effective education in basic life support(BLS).However,little is known about access of general public to BLS training across the globe.This study aimed to investigate availability and key features of BLS courses proposed for lay people in India,Nigeria and the United Kingdom(UK).METHODS:A Google search was done in December 2018,using English keywords relevant for community resuscitation training.Ongoing courses addressing BLS and suitable for any adult layperson were included in the analysis.On-site training courses were limited to those provided within the country's territory.RESULTS:A total of 53,29 and 208 eligible courses were found for India,Nigeria and the UK,respectively.In the UK,the number of courses per 10 million population(31.5)is 79 and 21 times higher than that in India(0.4)and Nigeria(1.5).Course geography is limited to 28%states and one union territory in India,30%states and the Federal Capital Territory in Nigeria.In the UK,the training is offered in all constituent countries,with the highest prevalence in England.Courses are predominantly classroom-based,highly variable in duration,group size and instructors'qualifications.For India and Nigeria,mean cost of participation is exceeding the monthly minimum wage.CONCLUSION:In contrast to the UK,the availability and accessibility of BLS courses are critically limited in India and Nigeria,necessitating immediate interventions to optimize community CPR training and improve bystander CPR rates.

Discussion on the Performance Evaluation Index System of Basic Course Teaching Team in Colleges and Universities

Teaching team plays an important role in integrating teaching resources,improving the quality of teachers and the quality of education and teaching.This paper studies the characteristics of the basic course teaching team,and gives the principles of building the basic course teaching team performance evaluation index system and the specific performance evaluation index system,in order to provide a direction for the high-level construction of the teaching team.

Exploration on the Reform of PBL Mode of Course:Comprehensive Experiment of Basic Medicine for Nursing Undergraduates in Colleges and Universities of Traditional Chinese Medicine

The undergraduate education of nursing science produces higher practical operational talents to the society,and the importance of experimental teaching cannot be ignored in the training of nursing students.The basic experimental teaching method of undergraduate nursing has been explored and reformed by the College of Basic Medicine of Guangxi University of Chinese Medicine.After the reform,the experimental teaching adopts the teaching method of PBL mode,and the experimental course is composed of several specific and important medical problems.The specific tasks involved in each problem include relevant morphological knowledge,functional knowledge,diagnostic and laboratory knowledge,and clinical medical knowledge.It makes the teaching content of experimental course more comprehensive,and leads to the transition from basic medicine to clinical medicine.This has gradually and effectively improved the practical ability,scientific research thinking,clinical comprehensive ability and learning interest of undergraduate nursing students.

Research on the Teaching Reform in Computer Basic Course Centered on Improving Information Literacy

In the current modem society, information technology enjoys rapid development and information resources increase sharply. In this context, information literacy has been an important indicator for assessing a talent＇s comprehensive quality. As a compulsory public course for college students not majoring in computers, computer basic course plays a significant role in cultivating college students＇ information literacy. However, how to improve contemporary college students＇ information literacy, facilitate the teaching reform in fundamental computer education, and effectively improve college students＇ capacities of solving problems with computers is a difficult question faced by fundamental computer education in colleges and universities

Research on the Ability and the Employment Guiding Thinking and the Applications on Professional Basic Course of Higher Vocational Art and Practice of Bridging Mode

In this paper, we conduct research on the ability and the employment guiding thinking and the applications on professional basiccourse of higher vocational art and practice of bridging mode. Art design is the biggest characteristic of individual creativity, art need to createinstead of imitating and copying. In the process of production, creative thinking is the key to a successful art products, grasp the technology canproduce the same design and the product, but the hand of art and technology perfect combination is possible to create the art products. For designand production activities in the basic technical indexes and basic operation can understand and grasp the designer is unable to turn the designinto product, higher vocational art and design. This paper integrates the state-of-the-art angles and perspectives on the issues that hold specialmeaning.

Basic Courses System Construction Based on Qualities Cultivation

Basic courses are responsible for the cultivation of integrative qualities, which is a guarantee of the long-term sustainable development for the students.However, they are now challenged by the specialized courses in Chinese colleges.This essay first analyzes the current situation of the provision of basic courses in higher vocational colleges of China, then expounds the requirements of qualities cultivation of enterprises, and at last centers on the basic courses system construction in higher vocational colleges on orientation of qualities cultivation.

A Summary of the Development Course of the Basic Issues of Socialism with Chinese Characteristics

Socialism with Chinese characteristics is a great cause without experience for reference. Under the general theme of adhering to and developing socialism with Chinese characteristics,the basic issues of socialism with Chinese characteristics are specifically composed of three aspects: the ruling construction of the Communist Party of China,the construction of socialism with Chinese characteristics and the development of human society. In the process of realizing the great leap of the Chinese nation to stand up,become rich,and become strong,the Chinese Communists,mainly represented by Mao Zedong,Deng Xiaoping,Jiang Zemin,Hu Jintao and Xi Jinping,have relayed to explore the basic issues of socialism with Chinese characteristics over the past 70 years,and constantly deepen their understanding of the laws governing the construction of the ruling party,the laws of socialist construction,and the laws of the development of human society.

RENEWAL OF BASIC LAWS AND PRINCIPLES FOR POLAR CON-TINUUM THEORIES (Ⅱ)—MICROMORPHIC CONTINUUM THEORY AND COUPLE STRESS THEORY

The purpose is to reestablish the balance laws of momentum, angular momentum and energy and to derive the corresponding local and nonlocal balance equations for micromorphic continuum mechanics and couple stress theory. The desired results for micromorphic continuum mechanics and couple stress theory are naturally obtained via direct transitions and reductions from the coupled conservation law of energy for micropolar continuum theory, respectively. The basic balance laws and equations for micromorphic continuum mechanics and couple stress theory are constituted by combining these results derived here and the traditional conservation laws and equations of mass and microinertia and the entropy inequality. The incomplete degrees of the former related continuum theories are clarified. Finally, some special cases are conveniently derived.

RENEWAL OF BASIC LAWS AND PRINCIPLES FOR POLAR CONTINUUM THEORIES (Ⅰ) —MICROPOLAR CONTINUA

Based on the restudies of existing polar continuum theories rather complete systems of basic balance laws and equations for micropolar continuum theory are presented. In these new systems not only the additional angular momentum, surface moment and body moment produced by the linear momentum, surface force and body force, respectively, but also the additional velocity produced by the angular velocity are considered. The new coupled balance laws of linear momentum, angular momentum and energy are reestablished. From them the new coupled local and nonlocal balance equations are naturally derived. Via contrast it can be clearly seen that the new results are believed to be rather general and complete.

Renewal of basic laws and principles for polar continuum theories (Ⅺ)—consistency problems

Some consistency problems existing in continuum field theories are briefly reviewed. Three arts of consistency problems are clarified based on the renewed basic laws for polar continua. The first art discusses the consistency problems between the basic laws for polar continua. The second art discusses the consistency problems between the basic laws for polar continua and for other nonpolar continua. The third art discusses the consistency problems between the basic laws for micropolar continuum theories and the dynamical equations for rigid body. The results presented here can help us to get a deeper understanding the structure of the basic laws for various continuum theories and the interrelations between them. In the meantime, these results obtained show clearly that the consistency problems could not be solved in the framework of traditional basic laws for continuum field theories.

Representation of the Basic Laws of Thermodynamics in Quantum Mechanics

We propose a representation of the basic laws, namely the zeroth, first, second and third law, in quantum thermodynamics. The zeroth law is represented by some parameters () that specify respective quantum states. The parameters are the elements of thermodynamic state space. The introduction of such parameters is based on a probabilistic nature of quantum theory. A quantum analog of the first law can be established by utilizing these parameters. The notion of heat in quantum systems is clarified from the probabilistic point of view in quantum theory. The representation of the second law can be naturally described in terms of these parameters introduced for the respective quantum systems. In obtaining the representation of quantum thermodynamics, consistency between quantum theory and classical thermodynamics should have been preserved throughout our formulation of quantum thermodynamics. After establishing the representation of the second law, the third law is discussed briefly. The relationship between thermodynamic temperatures and the parameters in is also discussed.

2023年版《理工科类大学物理课程教学基本要求》内容细化修订解读

本文介绍了对2010年版《理工科类大学物理课程教学基本要求》修订的意义和过程,并对2023年版《理工科类大学物理课程教学基本要求》中修订内容进行了解读。

新时代法学基本范畴的重构——构建中国自主法学知识体系要论

在新时代背景下对法学基本范畴的内涵和体系进行重构,是构建中国自主法学知识体系的“成事之要”。“政治新时代”和“科技新时代”的到来,为法学基本范畴的重构提供了背景和动因。法学基本范畴从法学学科体系看构成了近代法律科学的“通用语汇”,从法学学术体系看可谓是法学理论创新的“思想芯片”,从法学话语体系看形塑了中国法学对外传播的“基本语法”。为了重构法学基本范畴,一方面要进行理论上的融会贯通,即贯通马克思主义、中华传统优秀法治文明和西方优秀法治文化三个传统,另一方面要对历史和当下的法治实践予以归纳提炼,并通过建构性解释上升为法学概念和范畴。重构的核心任务在于构筑兼具普遍性与中国性的法学基本范畴体系,为此既要加强对原创性概念和范畴的研究,也要加强对普遍法学概念和范畴的新内涵的研究,并按科学严密的内在结构构筑起以“法”和“法治”为核心、兼具静态性和动态性的二元法学基本范畴体系。

大数据背景下全科医学信息课程改革的必要性及策略

大数据在医疗领域快速发展,无论从世界医疗科技趋势、国家政策方针,还是市场效益、工作效率上来看,大数据对全科医学是非常重要的。基于大数据技术的人工智能在全科领域应用广泛,如学生的校园管理、全科医疗服务、全科医生的规范化培训及继续教育等。同时医疗大数据又涉及到国家安全及个人隐私等道德法律问题。目前全科医学本科的信息课程缺乏大数据的内容,没有跟上医学信息发展形势。分析大数据背景下全科医学信息课程改革的背景、作用与意义,并分析全科医学信息的教育现状、发展及趋势,对课程改革的策略进行探讨,从而提供对全科医学信息课程改革具有帮助的意见和建议。

《生物化学》一流课程建设探索与实践

《生物化学》是生物技术、生物科学、生物制药、农学、园艺等专业的专业基础课,塔里木大学《生物化学》课程,在以“胡杨精神育人、为兴疆固边服务”教学思想指导下,历经校级重点课程、兵团精品课程、校级视频公开课、校级课程思政以及校级一流课程不同建设阶段,按照下得去、留得住、用得上、干得好人才培养目标进行课程建设。该文主要介绍该课程在本校的一流课程的建设情况,阐述了课程建设历程,介绍建设经验,为后期金课和一流课程建设提供参考价值。

“大思政课”:基本意涵、逻辑理据及实践进路

“大思政课”是在总结我国长期思政课建设经验与规律的基础上形成的育人新理念与新形态,是新时代我国思政课建设的范式创新与突破。在此态势下,如何科学合理地推进“大思政课”建设,成为一项亟待研究的时代课题。“大思政课”涉及多方面协同发展,需与现实结合并善用之。本研究基于人学思想的价值性理据、协同理论的内在性理据、系统观念的实践性理据等多维视角,揭明了“大思政课”何以为能的逻辑图景。推进“大思政课”建设绝非一日之功,需在课堂与社会的平衡中实现教学资源的再造,善用“大课堂”;在专职与兼职的并行中实现师资水平的提升,培养“大师资”;在传统与现代的融通中实现育人空间的重塑,搭建“大平台”;在守正与创新的共容中走向制度体系的规范,维系“大保障”,最终实现“大思政课”理念落地生根。

习近平法治思想融入高职思政课的意蕴、困境与对策

将习近平法治思想融入高职思政课教学,对于落实立德树人根本任务、坚定法治自信、培育高职学生法治素养和对标职业教育人才培养意义深远。在习近平法治思想融入高职思政课的教学具体过程中,存在内容、形式和效果等现实困境,应以习近平法治思想为引领培育法治思维,提升法治素养;以横纵两维度打破教学设计藩篱,整合教学内容;以“八个相统一”为指导推动各种教学方法创新,提升教学实效。