bluuebunny/crossref_metadata_2025 huggingface dataset:
Problems and Suggestions in The Process of New Urbanization
Authors: Wang Haochen
Published: December 2022

Over the past three decades, relying on tourism, real estate, and industrial agglomeration, my country's urbanization has entered a golden age of rapid development. However, over-reliance on land finance reduces the quality of urbanization, increases systemic financial risks in various regions, and is not conducive to the sustainable development of urbanization. According to the national strategic requirements of "mainly recycling the economy" and "developing the county economy", this paper analyzes the shortcomings of the new urbanization construction from the aspects of tourism development, real estate construction and industrial layout, in order to provide guidance for my country's new urbanization road. Provide necessary reference for further development.
Study on Relationship Between Soil Moisture and Fruit Tree Growth
Authors: Zhang Lu , Wu Dan
Published: December 2022

Soil moisture is very important for the growth of fruit trees. Nutrients are dissolved in water, and the flow of water drives the transport of solutes, so that they can be absorbed and utilized by crops.
Progress in The Application of Centrifugal Resorice Technology in The Field of Minerals
Authors: Yang Mingyue , Zeng Tao , Liu Zhongbin , Liu Shuai
Published: December 2022

How to effectively carry out mineral sorting while reducing environmental pollution and waste of resources is a problem that is constantly explored by researchers engaged in mineral sorting. Centrifugal reselection is one of the main and important technologies of mineral sorting. This paper focuses on the research status and development trend of centrifugal reselection technology in the field of minerals at home and abroad, points out the research direction of centrifugal reselection technology, and provides a reference for the further research and application of centrifugal reselection technology in the field of minerals.
Study of Non-Periodical Mechanical Metamaterials: Design and Application
Authors: Huo Jindong , Wang Ningzhen , Peng Hongtao
Published: December 2022

We studied a typical mechanical metamaterial with different geometry patterns to demonstrate its effect in wave transmission. An inclusion geometry described by the trigonometric function is employed to generate local resonance under wave propagation. It has been found that the inclusion geometry plays an important role in the bandgap formation and attenuation of sound wave. More importantly, for a hybrid unitcell, the existing of flat and negative-slope bands indicates the translational mode of the dense core, which is critical to understand the wave reflection through non-periodical metamaterials. Furthermore, we propose a concept of velocity tuning of its individual components, which gives rise to local high strain energy, to explain why the absorptivity of sound wave is high. With help of embedded electronic units and dielectric materials, we can realize the active control of the deformation and reconfiguration of the unitcell, thus, to alter its band structure properties. The fabrication of such metamaterials can be realized by plasma etching, laser printing and nanofabrication from centimeter scale to nanometer scale. Therefore, the applications of mechanical metamaterials can be extended from sound filtering in centimeter scale to thermal management in nanometer scale.
On the Realization of Double Carbon Goal from the Perspective of Cultivated Land Quality Protection
Authors: Li Risheng
Published: December 2022

Since the revolution, the greenhouse gases produced by human activities have gradually increased, and the greenhouse effect has gradually strengthened, resulting in a series of environmental problems such as climate warming, glacier melting and sea level rise. China's peak carbon dioxide emissions and carbon neutral strategy is not only a major demand for global climate control, protecting the earth's homeland and building Community of Shared Future for Mankind, but also an inherent demand for China's high-quality development, ecological civilization construction and comprehensive management of ecological environment. The two fundamental ways to realize the carbon-neutral strategy of China are "reducing emissions" and "increasing exchange".
Research on the Teaching Reform of Engineering Drawing for Electrical Majors
Authors: Chen Hehe
Published: December 2022

In order to adapt to the training objective of applied talents in higher vocational colleges, this paper embodies the law of knowledge and helps students to build the knowledge structure of engineering drawing courses. This paper discusses a teaching model of engineering drawing course suitable for online and offline blended teaching, which is constantly applied and explored in teaching practice, perfected teaching model and deepened course network resources, so that blended teaching model is constantly improved and promoted in practice, and provides a new idea for teaching reform in colleges and universities.
Discussion on Ideological and Political Education of "Engineering Economy" Course
Authors: Ni Bijun
Published: December 2022

Engineering Economy is the core course of construction cost specialty, which contains more ideological and political resources. Therefore, from the perspective of "curriculum ideological and political", this paper enumerates the ideological and political resources contained in each chapter of the course, with the help of corresponding cases, and discusses the implementation path of ideological and political resources such as "craftsmanship", "campus online loan" and "sustainable development".
A Review of LiDAR sensor Technologies for Perception in Automated Driving
Authors: Zhou Jingmeng
Published: December 2022

After more than 20 years of research, ADAS is common in modern vehicles on the market. Automated driving systems have gradually moved from the research stage to public roads for commercial testing. These systems rely on information provided by onboard sensors that describe the state of the vehicle, its environment, and other participants. The selection and placement of sensing sensors are key factors in system design. In order to better understand the principles and functional implementation of sensing sensors, this paper reviews the existing and latest sensing sensor technologies and presents a detailed analysis of the principles, advantages, and disadvantages, as well as common types and performance of LiDAR sensor technologies, and then introduces two proposed solutions to the problem of how to improve the recognition accuracy of LiDAR sensors under the influence of different weather factors by selecting. Finally, this paper briefly introduces several latest LiDAR sensors under research and proposes an innovative multi-sensor fusion solution based on the existing research, and analyzes the feasibility.
Research and Design of Wireless Attendance System
Authors: Wu Fengxiang , Min Changzhuo
Published: December 2022

In order to solve the problem that the teacher manually named attendance in class wasting students' time in class and students skipping classes, a wireless attendance system APP based on Android was designed and developed. Students use the mobile APP to locate the position to achieve attendance, so as to improve the efficiency and authenticity of college attendance.

This system uses Android and JSP dynamic web page development technology. The wireless attendance system APP mainly realizes the functions of two user roles of teacher and student. The wireless attendance system APP with registration, login, course selection, sign-in, and background summary functions is designed and implemented. In the design and development of the project, using the Java design language and MYSQL data, the system effect is stable.
Research on the Influence of Emoji in Advertising Slogans on Consumers' Purchase Intention
Authors: Shen Yeting
Published: December 2022

In the Internet era emoji are being used more and more frequently, this study focuses on how the use of emoji in product advertising slogans affects consumers' purchase intentions. We conducted 2 experiments to explore this issue. Experiment 1 found that adding emoji to product advertisements would increase consumers' willingness to buy products, and the effect was mediated by psychological simulation. Based on this, Experiment 2 further found that the position of the emoji in the tagline would have a moderating effect, i.e., the emoji would increase purchase intention only when the emoji was in the middle of the tagline, while the emoji's effect on purchase intention disappeared when the emoji was on both sides (left or right). This study makes some theoretical contributions and practical contributions to how emoji can be used in the consumer market.
The Current Situation of Fiscal and Tax Policies to Promote the Employment Quality of Flexible Workers in New Industries and Improve Countermeasures
Authors: Bai Xuelan
Published: December 2022

With the application of big data, the upgrade of cloud computing resources and the comprehensive popularization of Internet technology, the emergence of new economy and new industry will definitely overturn the traditional working mode, and more and more workers join the flexible employment team and become the main force in the labor market. The new flexible employment is characterized by the diversity and ambiguity of employment relationship, which poses a new challenge to the recognition standard of traditional employment relationship. At the present stage, China's casual labor economy is developing rapidly, but due to the special nature of the industrial model and the ambiguity of the application of relevant tax policies, there are many tax risks in the development of casual labor economy, which further leads to the reduction of the employment quality of flexible workers. Now, we put forward some suggestions on the problems related to the recognition of labor income of flexible workers, the application of preferential policies and tax supervision.
Research on the Internationalization of Time-honored Brands Under the Background of The Digital Economy
Authors: Yao Xue
Published: December 2022

The new economic normal and high-quality development make brand internationalization a high-frequency vocabulary in the current innovation and development of Chinese enterprises, which is an important way for enterprises to transform and upgrade. As a Chinese brand business card, on the one hand, China's time-honored brand should shoulder the responsibility of China's local brands going international, and on the other hand, it needs to find innovative ways to solve the problem of aging in the fierce international market competition. Based on this, on the basis of the relevant research results of scholars at home and abroad, starting from the concepts of Chinese time-honored brands and brand internationalization, this paper explains the inevitability and feasibility of time-honored brand internationalization, analyzes a series of problems existing in the process of brand internationalization, and puts forward corresponding countermeasures according to their problems, which is of enlightening significance for completing the digital transformation of time-honored brands in the internationalization process.
A Study on the Reform Path of College English Teaching in the Context of New Liberal Arts
Authors: Shi Xianglin
Published: December 2022

College English is not only an important way for students to acquire basic English knowledge and professional skills, but also a necessary path for internationalization in the future. With the popularization of higher education, college English teaching has made remarkable achievements and cultivated many skilled talents of high-level English majors. However, due to the simplification of teaching objectives, the traditionalism of teaching mode, the low attention of students and the low degree of specialization of teaching subjects, college English teaching urgently needs teaching reform, which should meet the needs of contemporary economic and social development and the employment needs of enterprises. Therefore, this paper suggests that college English teaching reform should be carried out from the aspects of enriching teaching objectives, changing teaching ideas, optimizing teaching materials, and adopting diversified evaluation methods, in an attempt to help teachers and students get a feasible way to better meet the needs of national development.
Research on the Cultivation Strategies of College Students' Legal Awareness
Authors: Luo Yanjun
Published: December 2022

College students are the main group to promote social progress. The cultivation of their legal awareness is of great significance in promoting the realization of the strategy of "comprehensively governing the country according to law". At present, when colleges and universities are training the legal consciousness of non law majors, there are still some problems such as ignoring the multiple environments for training the legal consciousness and blurring the position of the legal consciousness in the curriculum. As for the students, their own legal consciousness is weak. Therefore, when cultivating students’ legal awareness, colleges and universities should create good and diversified publicity environments, optimize the position of legal awareness in the corresponding curriculum system, and at the same time, students should pay attention to improving their legal awareness.
The Primary Exploration of The Curriculum Setting of Chinese Audio-visual Course Under Informatization Background
Authors: Liu Jinqin
Published: December 2022

Under informatization background，the shortcomings of conventional Chinese audio-visual course have been revealed. Using current education methods to set up audio-visual course is the product of the deep integration of situational teaching theory and mixed teaching method.
BT+ Approach to the Meaning Construction of Metonymy-Based Chinese Cyber-Expressions
Authors: You Xiaogang , Liang Liang
Published: December 2022

China has the biggest population of netizens in the world and more and more cybernauts often use cyber-expressions in their Internet communication and some cyber-expressions are even used in our daily life offline. With the increasing popularity of these cyber-expressions, they have caught the eyes of more and more scholars and these expressions’ formation and meaning construction are analyzed from many perspectives. From the perspective of Cognitive Linguistics, the Chinese cyber-expressions are formed with the help of such cognitive mechanisms as metaphor, icon iconicity, metonymy and metaphtonymy. While the metonymy-based e-terms account for a large proportion of all the new cyber-expressions, little is discussed about metonymy-based expressions in previous studies related to the Chinese cyber-expressions. In the present paper, 752 metonymy-based e-terms from a closed corpus will be studied exhaustively and the meaning construction of these kinds of expressions will be systematically analyzed based on the Blending Theory under the framework of Cognitive Linguistics with an attempt to fill the gap in the previous studies.
The Impact of Digital Currency on Accounting and Management under the Blockchain Architecture
Authors: Wu Chuanwei , Zhou Zejiong
Published: December 2022

In recent years, the digital economy has developed vigorously relying on Internet technology, and blockchain technology has played an important role in promoting high-quality information processing. The closely connected digital currency system is still in the rising stage, with defects in all aspects and hidden risks in the market that cannot be ignored. In order to ensure the legitimate rights and interests of investors, this paper deeply analyzes the current global economic development trend, from the development of blockchain technology to digital currency, analyzes the accounting measurement and relevant accounting standards, and puts forward suggestions on improving the overall regulatory efficiency of the government, strengthening the accounting treatment of enterprise entities, strengthening the construction of blockchain networks, etc, It is expected to promote the construction of domestic information technology and better coordinate the development of digital economy and society with digital currency.
The Effect of Income Level on Educational Expectations
Authors: Li Jinyi
Published: December 2022

Based on the perspective of income level, this paper uses the 2016 China Family Tracking Survey (CFPS) data as the analysis data to examine the impact of income level on educational expectations from the individual level for the first time. The results show that income level has no significant effect on educational expectations. Educational expectations include parents' educational expectations for their children and children's self-education expectations. This disparity reflects the heterogeneity of their expectations for the educational level of their offspring. The gap between parents and children's educational expectations is too large, which is not conducive to children's educational acquisition and social class promotion. In recent years, educational anxiety in Chinese society has become increasingly serious. The educational chaos in the school district and extracurricular classes of Sky High School is closely related to the educational anxiety of parents. After the reform and opening up, with the continuous accumulation of family wealth, education has shown a competitive situation, and parents' educational concept has gradually changed. With the continuous improvement of the average family income, more and more parents have invested a lot of money and energy in their children's education in order to compete for limited educational resources and social resources such as employment. As a reflection of a family's socioeconomic status, studying its role in promoting children's education is conducive to finding out the impact of the wealth and income of the previous generation on the education level of the next generation, and is conducive to exploring the source. educational competition’s reason.
The Fate of the Samurai in the Conflict of the Ages from “Rurouni Kenshin”
Authors: Liu Fengkai
Published: December 2022

This study investigates different samurais' choices and their fates in the anime series "Rurouni Kenshin." In this study, by analyzing different samurai figures in the anime as they go through the changes from the Edo to the Meiji era, the samurai show different ways of reflecting on their own perceptions and traditional bushido: Himura Kenshin reflects on the situation brought to the people by the times and his own samurai identity, and finally chooses to pursue benevolence and not to kill anymore; Saito Hajime keeps the traditional spirit of bushido but blends it with the new era; Shishio Makoto rejects most of the traditional concepts of bushido and is willing to change from being a samurai to being an emperor through his ability and ambition. Most of the previous studies of Bushido focused on the characteristics, the history and trajectory of the formation of Bushido spirit. When studying Bushido in animation, previous studies tended to look for the embodiment of Bushido culture in animation, but fewer focused on the changes of Bushido culture in animation. This study provides a new perspective on examining the impact of changing time using Japanese anime.
The Optimization Trend of Aerobics Teaching in Colleges and Universities Under the Situation of National Fitness
Authors: Han Jinnan
Published: December 2022

Aerobics is a rhythmic, rhythmic aerobic exercise performed to the accompaniment of music, which achieves the purpose of exercise and fitness through the coordination of the upper and lower limbs and all joint parts, and its movements combine the characteristics of various types of dance and gymnastics, through the unarmed or use of equipment to exercise, to achieve the purpose of fitness, beauty and heart. Through the exercise of aerobics can not only make the body fit, improve health can also be achieved through the long-term musical rhythm of the accompaniment, the development of the perception of music and the cultivation of sentiment, physical and mental health and other benefits of aesthetic value. The reason why the aerobics program is loved by the masses is also due to its simplicity, easy to learn, low requirements for the venue, easy to promote and other factors, occupying an important position in the promotion of national fitness. In this paper, the sport value of aerobics in colleges and universities and the way of teaching aerobics in colleges and universities are studied from the perspective of "National Fitness Program Outline". In order to conform to the development of the times and support the favorable implementation of the National Fitness Program, the aerobics curriculum in China's colleges and universities should strengthen the innovation and optimization in teaching. This paper discusses and analyzes 3 main aspects: the National Fitness Plan (2016-2020), the optimization of college aerobics curriculum, and teaching dilemmas, and explores the optimization of college aerobics teaching as a way to improve the overall physical quality of our nation.
Reinventing and Constructing: Improving the Effectiveness of Rural Public Cultural Spaces
Authors: Wei Dongzeng
Published: December 2022

Rural public cultural space is a kind of psychological and cultural living space produced by the rural people in their daily life and communication activities, and it is the cultural living space of the rural public. With the deepening of urbanization, the guiding force of rural culture has been lost, and the "rusticity" of rural public cultural space has been broken. In this regard, it is necessary to develop the cultural tension of rural public cultural space, expand the cultural synergy of rural public cultural virtual space, and form the multiple development momentum of rural public cultural space. From the perspective of reality, it is necessary to reflect on the reality of rural cultural management, broaden the cultural memory of rural areas, expand the production of rural areas, improve the cultural system of rural areas, increase the accessibility and use of rural public culture from the perspective of realization, change the geometric schema of rural society, and promote the high-quality development of rural public cultural space toward the direction of specialization and equalization.
The Research and Practice of Talents Training Mode of Forest Engineering Major based on Industry-University-Research Cooperation
Authors: Xin Ying , Wang Haibin , Di Haiting , Xu Guoqi , Xu Huadong
Published: December 2022

Along with the adjustment of industrial structure and the transformation and upgrading of development mode, the demand for complex innovative talents is increasingly strong. Taking Forest engineering major of Northeast Forestry University as an example, this paper introduces the reform mode of talent training program under collaborative education and its beneficial effects, and points out the existing problems in current industry-university-research.
Can Pop Culture Really Bring About Social Gender Change in Chinese Society
Authors: Ding Yueming
Published: December 2022

With the popularity of the idol talent show in Chinese market, the size of the fan base has escalated and this has contributed to an awakening of the audience's aesthetic awareness. In order to study whether popular culture can be used as a positive social change tool to change audience' attitudes towards gender, and ultimately to an effect positive changes in gender culture in Chinese society. This article uses the methodology of digital ethnography to analyse the contestants with “gender temperament” in reality TV shows.It is positive to note that the gender diversity presented in the pop culture shows that gender culture for Chinese society is undergoing a positive change. However, many viewers are continuing to make discriminatory comments about the contestants with the “gender temperament”, which indicate that gender stereotype is still exist.
The Attitude of Chinese Parents Towards The ‘Double Reduction’ Policy and The Factors Influencing Their Attitude
Authors: Zhou Zihan
Published: December 2022

Since China's Ministry of Education announced the ‘Double Reduction’ policy in July 2022, its impact on China's education system has been a heated topic. Using an online survey (n=381), this dissertation, investigated the attitudes and views of Chinese parents towards the ‘Double Reduction’ policy. Descriptive statistical analysis was used to quantify the proportions of positive and negative perceptions; logistic regression was used to examine factors associated with positive or negative perceptions. The results of this study show that most Chinese parents support the ‘Double Reduction’ policy and hope that it will continue (87.6%). The higher the stage of compulsory education of the children, the more likely parents are to support the ‘Double Reduction’ policy (high school unadjusted OR =2.033, 95% CI=1.119-3,695). Overall, most Chinese parents support the ‘Double Reduction’ policy, but the existence of exam-oriented education and Chinese parents' lack of confidence in their support ability and their children's own learning ability still affect their attitude towards the ‘Double Reduction’ policy. Future research and policy formulation should focus on the guidance of family education.
Tax Incentives, Digital Transformation and Enterprise Innovation
Authors: He Xiaoyu , Li Bo
Published: December 2022

Taking China's A-share manufacturing listed companies from 2013 to 2020 as samples, this paper discusses and tests the impact of tax incentives and digital transformation on enterprise innovation, and further explores the moderating effect of digital transformation on the relationship between tax incentives and enterprise innovation. The research results show that tax incentives play a significant positive role in promoting enterprise innovation, and digital transformation can effectively promote enterprise innovation and positively regulate the innovation incentive effect of tax incentive policies, indicating that enterprise digital transformation is conducive to the play of tax incentive policies, so that enterprise innovation can be better promoted and promoted. The results of heterogeneity test show that the promoting effect of tax incentives and digital transformation on enterprise innovation is more obvious in state-owned enterprises and non-high-tech enterprises, while the moderating effect of digital transformation on the incentive effect of tax incentives is more prominent in high-tech enterprises.
Practical Training Mode for Improving Teachers' Data Literacy Ability
Authors: Sun Yuqing , Wang Liya , Zhang Chunying , Liu Fengchun , Yang Aimin
Published: December 2022

Based on the analysis of the research status of university teachers' data literacy at home and abroad, combined with the survey results of university teachers' data literacy ability in China, this paper uses data classification and other methods to mine the core elements of university teachers' data literacy ability; Further use the scoring method to build a multi-level dynamic evaluation system of teachers' data literacy ability; For different levels of data literacy capabilities, we will build a multi-level promotion strategy plan to form a complete set of dynamic strategies for improving college teachers' data literacy capabilities, and promote and apply them.
Practice of Ideological and Political Education in Electrical Engineering Courses
Authors: Huang QX , Xie Y
Published: December 2022

Electrical practical training is an important practical course of majors of electric automation, electromechanical integration and applied electronics. The paper works out the ideological and political elements, and makes clear the moral connotation in the course. With the course assessment as the research focus, it is recommended to integrate ideological and political elements into the formative and summative assessment. Exploring the paths to combine the basic practical training with ideological and political education, the paper aims at cultivating students’craftsmanship of pursuing perfection and better quality and further enhancing students’professional accomplishment.
The Civil Law Protection of Internet Privacy
Authors: Wang Liangliang
Published: December 2022

At present, with the rapid development of the network, the network has gradually become the main medium of people's communication, and it is inevitable to use the network in social life. When we shop in Taobao, when Tik Tok brushes short videos, and when we use search engines on websites, our personal information leaks on the network platform. In recent years, various network privacy infringement cases have been exposed, causing serious harm to network users and even affecting the security development of the network environment. There are two reasons for this situation: first, the law on network privacy protection in China is not perfect, and second, China's citizens lack the awareness of network privacy protection. We have strengthened the protection of the right to privacy, mainly through civil law, making it a civil right, and after being violated, we will provide relief through civil law. With the rapid development of network technology, we should pay more attention to the civil law protection of the right to privacy.
Study on the System of Restrictive Conditions Attached to Operator Concentration
Authors: Lv Zitao , Pei Miaomiao , Jiang Xiaoya , Wang Fengjie
Published: December 2022

Concentration will improve the production efficiency, but also effective in the market competition, there are two kinds of guard against the risk measures, attach restrictive conditions that prohibit concentration and concentration system, the former is relatively complete, equal to restore the original state, the latter is relatively mild, not only can improve the economic benefit, Can also effectively avoid the adverse impact of concentration on the market. Anti-monopoly law enforcement agencies should constantly strengthen the centralized examination of business operators, improve the examination system, improve the efficiency of the examination, and build the anti-monopoly examination system of business operators concentrated in accordance with the level of economic development in China. So how to use the anti-monopoly law to effectively promote the concentration of operators at the same time to reduce its negative impact on the economy, the concentration of operators with restrictive conditions system effective use will have long-term significance. Therefore, according to the existing problems of additional restrictive conditions of concentration of business.
A Model for Combining Allegorical Mental Imagery with Intuitive Thinking in Understanding the Limit of a Function
Authors:   Department of Mathematics and Computer, Faculty of Moin Rasht Branch, Technical and Vocational University (TVU), Guilin, Iran., Shaldehi Ahmad Hedayatpanah , Shaldehi Marziyeh Hedayatpanah ,   Department of Mathematical and Computer, Faculty of Vali Asr Tehran Branch, Technical and Vocational, Iran., Hedayatpanah Badriyeh ,   Department of Education and Training District2 Rasht, Iran.
Published: December 2022

The main purpose of this article is to use a combination of mental imagery and puppet allegory to intuition the concept of limit for learners. Usually to start teaching, teaching the limit of functions, there are several methods, but most instructors use the Epsilon and Delta formula. Obviously, starting with teaching with formulas, it is not easy to explain the concept of limit. Because, learners achieve a deep understanding of the limit, when the concepts become intuitive for them. Intuition of the limit of functions, with proper mental imagery and allegory, can make understanding the limit easy and enjoyable. Obviously, following the optimal understanding of the limit, understanding, Neighborhood. Derivation and integrals, for learners It becomes easier. The use of a combination of mental imagery with puppet allegorical patterns to intuitive or sensory thinking that is the result of three decades of experience and teaching of the author, to be available to learners and educators. In this way, very soon, learners (especially non-mathematics learners), especially in high school classes, or the first years of university, they manage to have a deep understanding of the limit, Because one of the ways to teach mathematics is to use the properties of mental imagery to be objective or sensory through allegory, which has a high effectiveness and feedback in understanding the limit. In this article functions limit education is considered by combining mental and sensory imagery through allegory or simile with six puppet images. The experiences in this research can be used by teachers of teacher training centers, teachers and high schools and universities and designers of educational materials.
The Influence of Femoral Fixation on Mortality and Revision After Hip Arthroplasty in Femoral Neck Fractures in Patients Older Than 65 Years. A Matched Cohort Analysis From the American Joint Replacement Registry
Authors: Springer Bryan D. , Odum Susan M. , De Ayushmita , Stambough Jeffrey B. , Huddleston James I. , Illgen Richard L. , Della Valle Alejandro Gonzalez
Published: December 2022

Introduction:

In the United States, most hip arthroplasties for femoral neck fractures are done with a noncemented stem despite worldwide registry data suggesting that cemented fixation has improved long-term survivorship in patients older than 65 years. We, therefore, evaluated the effect of femoral fixation on the risk of revision, revision for periprosthetic fracture (PPFx), and mortality in patients undergoing hip arthroplasty for femoral neck fractures.

Methods:

Seventeen thousand one hundred thirty-eight cases of cemented femoral stems were exactly matched to noncemented fixation cases in a 1:1 fashion based on age, sex, and Charlson Comorbidity Index as reported in the American Joint Replacement Registry. Outcome variables included revision for PPFx, all-cause revision within 1 year and 90 days, and in-hospital mortality at 90 days and 1 year. The primary independent variable was femoral fixation (cemented and noncemented), and covariates included race (black, white, and others), ethnicity (Hispanic and non-Hispanic), hospital teaching status (minor, major, and nonteaching), and hospital size (number of beds: 1 to 99, 100 to 399, and ≥400). Chi square tests and multivariable logistic regression models were used for statistical analysis.

Results:

Hip arthroplasty with a cemented stem was associated with a 30% reduction in all-cause revision at 90 days (odds ratio [OR]:0.692, confidence interval [CI]:0.558 to 0.86), a 29% reduction in revision at 1 year (OR:0.709, CI:0.589 to 0.854), and an 86% reduction in revision for PPFx (OR:0.144, CI:0.07 to 0.294). However, cemented stem fixation was associated with increased odds of in-hospital (OR: 2.232 CI: 1.644 to 3.3031), 90-day, and 1-year (OR:1.23, CI:1.135 to 1.339; and OR:1.168, CI:1.091 to 1.25, respectively) mortality.

Dicussion:

In this exact match study, cemented stem fixation for femoral neck fracture was associated with a markedly reduced risk of revision for PPFx and for all-cause revision. This must be weighed against the associated increased risk in mortality, which warrants additional investigation.
Intertrochanteric Osteotomies in Children and Adolescents: Principles of Proximal Femoral Deformity Correction
Authors: Miller Katherine E. , Mosca Vincent S. , Blumberg Todd J.
Published: December 2022

Intertrochanteric osteotomies are used to correct a variety of congenital and acquired deformities of the proximal femur in children and adolescents. Varus, valgus, flexion, extension, or rotational osteotomies at the intertrochanteric level can be used to restore normal alignment of the proximal femur, increase congruency and stability of the hip joint, facilitate healing or remodeling of the femoral head and neck, redirect the articular surface, and improve functional limb position in the case of soft-tissue contractures. The steps necessary to assess proximal femoral deformity and plan the appropriate osteotomy are described along with indications and long-term considerations.
Mechanical Complications After Intramedullary Fixation of Extracapsular Hip Fractures
Authors: Klima Matthew L.
Published: December 2022

Extracapsular hip fractures occur frequently in the elderly as a result of low-energy trauma. Achieving stable fixation in osteoporotic bone to allow early weight bearing is a key objective in the treatment of these injuries. Many of the intraoperative decisions facing surgeons are directed by first determining fracture stability. Unstable fracture patterns should be fixated with intramedullary nails, aiming to control motion around the implant and at the fracture site. Torsion control devices provide additional stability and control, although their exact indications are not precisely defined. Complications that arise as a result of the early loading can be avoided with a good surgical reduction, meticulous technique, and proper implant selection. Mechanical complications include cutout, inordinate proximal femoral shortening, delayed union, early implant fracture, nail toggle, and cut through/medial migration.
Causal Loop Diagram Kepuasan Pelanggan terhadap Layanan Publik: Studi Kasus Direktorat Registrasi Pangan Olahan, BPOM
Authors: Aryani Rahajeng Puput
Published: December 2022

Survei kepuasan pelanggan menjadi salah satu indikator kualitas pelayanan publik. Pada tahun 2020 sebagian besar indikator kinerja Direktorat Registrasi Pangan Olahan mengalami peningkatan, namun hasil survei kepuasan pelanggan di Direktorat Registrasi Pangan Olahan mengalami penurunan dari 83,96 pada tahun 2019 menjadi 82,60 pada tahun 2020. Penelitian ini bertujuan untuk memahami struktur dan perilaku kepuasan pelanggan terhadap layanan publik di Direktorat Registrasi Pangan Olahan. Causal Loop Diagram digunakan untuk memvisualisasikan keterkaitan problem yang dihadapi, variabel kunci dan keterkaitan antar variabel penyusun kepuasan pelanggan. Observasi keterkaitan antar variabel dapat digunakan untuk merancang alternatif solusi jangka panjang. Penentuan variabel dilakukan melalui studi pustaka, observasi hasil survei kepuasan pelanggan, dan focus group discussion (FGD) yang melibatkan petugas layanan publik. Variabel-variabel tersebut digunakan dalam mengembangkan Causal Loop Diagram untuk memahami pola struktur kepuasan pelanggan.

Berdasarkan Causal Loop Diagram, variabel kunci yang berpengaruh pada kepuasan pelanggan adalah variabel beban kerja petugas. Peningkatan kepuasan pelanggan dapat meningkatkan willingness dan awareness masyarakat untuk melaksanakan kewajiban registrasi pangan olahan. Namun, disisi lain hal tersebut berpotensi menurunkan kepuasan pelanggan akibat peningkatan beban kerja, munculnya pengaduan serta berkurangnya kesempatan petugas untuk mengikuti pelatihan maupun self-learning. Hasil Causal Loop Diagram dapat digunakan untuk mencari alternatif solusi penurunan kepuasan pelanggan akibat beban kerja yaitu: penerapan registrasi non evaluasi melalui mekanisme Risk Based Approach (RBA), pemetaan sosialisasi registrasi, peningkatan petugas penilaian, dan pemberian reward sebagai timbal balik dari beban kerja yang meningkat. Alternatif solusi tersebut dapat dijadikan dukungan penyusunan kebijakan bagi pimpinan.
Arnavutluk Tahtının Endülüslü Talibi: Don Aladro Kastrioti (1845-1914)
Authors: ORUÇ Doğukan
Published: December 2022

Bu makalede İspanya'nın Endülüs bölgesinde doğmuş bir asilzâde olan Aladro Kastrioti'nin biyografisi ele alınmaktadır. Büyük büyük annesinin İskender Bey'in soyundan biriyle evlendiği iddiasını taşıyan Aladro, bu meşhur Arnavut kahramanın varislerinden olduğunu ileri sürmüş ve Arnavut tahtında hak iddia etmiştir. Onun 1902 sonrasındaki hayatı iddiasının peşinde ve neredeyse bütünüyle Arnavut millî hareketiyle ilişki içinde geçmiştir. Bu çalışma Osmanlı arşiv belgelerini, Avrupa gazetelerini ve Aladro'nun çağdaşı olan önde gelen Arnavutların yayımlanmış hatıratlarını inceleyerek, Aladro Kasrioti’nin iddiası adına özellikle Kuzey Arnavutluk’ta ciddi bir destekçi kitlesi oluşturmayı başardığına dikkat çekmektedir. Bu açıdan, Aladro’nun biyografisi Arnavut millî hareketinin tarihini birçok yönüyle kavramak ve bölgedeki gelişmeleri bağlamsal hâle getirmek adına yeni perspektifler sunmaktadır. Makale, onun bölgenin ileri gelenleriyle kurduğu münasebetlerin Osmanlı İmparatorluğu’ndaki Arnavutların sosyal ilişki ağlarını da analiz imkânı sağlayabileceğini öne sürmektedir. Aladro Kastrioti'nin Jerez'de zengin bir ailenin gayrimeşru çocuğu olarak doğumundan Arnavut tacının talibi olarak Paris’teki ölümüne değin yaşadığı altmış dokuz yıllık hayatı konu edinen çalışma, Osmanlı Balkanlarındaki bir bölgenin Arnavutluk Prensliği’ne dönüşme sürecini resmetmekte ve imparatorluğun eski topraklarındaki temas ve tesirlerini göstermektedir.
COVID-19 Pandemic: A Motive for Pro-Environmental Behaviors (Pebs) in the Egyptian Tourism and Hospitality Industry
Authors: Abdallah M. Elshaer  , Mohammed Hasan Ali Al-Abyadh  , Omar Alsetoohy  , Asmaa M. Marzouk  , Mohamed Fathy Agina
Published: December 2022

Academics have been curious about what motivates pro-environmental behaviour. However, a few research studies have been conducted to analyse and comprehend the pro-environmental behaviour of those in charge of service and production (employees). The COVID-19 outbreak highlighted this topic, emphasising the significance of employees’ pro-environmental behaviours (PEBs) in promoting and maintaining business sustainability. Therefore, this study contributes to the body of knowledge by investigating employees’ PEBs during the COVID-19 pandemic. In-person and online surveys were used to reach the staff of hotels and travel agencies in Egypt’s most popular tourist areas. The quantitative data were analysed with SPSS 25. The results revealed that employees of the tourism and hospitality industry are exceptionally engaged in PEBs in times of the COVID-19 pandemic. Also, the findings indicate that the structure of tourism and hospitality employees’ PEB comprises six factors: operation activities, habits, organisation rules, health, energy-saving, and environment-related activities. However, their behaviour must be guided and improved in three key areas (personal health, organisational rules, and operation activities). According to this study, employees may follow certain practices without understanding their justification or significance. In practice, the study presents recommendations that might increase the industry’s resistance to challenges in improving the pro-environmental behaviour of industry employees.
Pragmatic Variant of the Methodology of Designing Local Learning Systems
Authors: Pechnikov Andrey
Published: December 2022

The article completes a series of articles devoted to the development of the pragmatic approach to the pedagogical designing of local learning systems. It describes the methodology of designing the educational process, taking into account both the requirements imposed on the projected process and the specifics of the conditions in which this process will be implemented. The described design process is focused on implementation within the framework of the methodical work of teachers. Therefore, it does not involve the development of original teaching technologies, but provides for an analysis of the existing arsenal of pedagogical technologies for the selection of those options that most fully correspond to the project situation under consideration. As a source of information about pedagogical technologies, it is proposed to use the encyclopedia of educational technologies by G.K. Selevko, in which data on the absolute majority of existing educational technologies are presented in a single format. At the same time, attention is focused on the peculiarities of the interpretation in the proposed source of those individual concepts and provisions of pedagogy and psychology that determine the nature of the project decisions made.
Antibody response to receptor-binding domain of SARS-CoV-2 spike protein following vaccination and natural infection with SARS-CoV-2
Authors: Rahman Fahmida , Mazumder Sraboni , Farook Saika , Deb Paroma , Saha Supti Prava , Akter Farjana , Jilani Md Shariful Alam , Haq Jalaluddin Ashraful
Published: December 2022

Background and objectives: Antibody to SARS-CoV-2 develops both after natural infection with SARS-CoV-2 and vaccination. This study was undertaken to determine the antibody response to SARS-CoV-2 among population after natural SARS-CoV-2 infection and vaccination.

Material and methods: The study was carried out on adults aged 18 years and above. Study population consisted of four groups. Group-1 (control): healthy and history of no prior SARS-CoV-2 infection and vaccination, Group-2: had past SARS-CoV-2 infection and no vaccination, Group-3: received two doses of recombinant adenoviral vector vaccine ChAdOx1 (Oxford–AstraZeneca) without past SARS-CoV-2 infection, and Group-4: had past SARS-CoV-2 infection and received 2 doses of ChAdOx1 vaccination.

Blood was collected 1 and 7 months after the second dose of vaccination from Group-3 and 4 individuals. Single blood sample was collected from participants of Gr-1 and 2 at the time of enrolment. Immunoglobulin G (IgG) antibodies to receptor-binding domain (RBD) of SARS-CoV-2 spike protein S1 (anti-RBDS1 IgG) was determined in serum by ELISA method.

Results: Total 176 participants aged 18 years and above were enrolled. Anti-RBDS1 IgG positivity rates were 51.9%, 66.7%, 96.8% and 100% in individuals of Group-1, 2, 3 and 4 respectively. Gr-4 had significantly (p < 0.05) mean higher anti-RBDS1 IgG antibody level (120.8 ± 31.9 DU/ml) compared to other groups 1 month after 2nd dose of vaccination. No significant differences in antibody response were found among the individuals of four groups across gender and comorbidities. Seven months after the 2nd dose of vaccines, the antibody concentration declined in 85.3% (112.1 ± 30.4 DU/ml to 75.9 ± 48.7 DU/ml) and 81.5% (127.3 ± 20.4 DU/ml to 92.5 ± 43.6 DU/ml) individuals of Group-3 and Group-4 respectively. Decline of antibody was 40.6% and 34.7% in 7 months, but all remained positive except 1 in Group-3. Fever (34.4%) and headache (24.8%) were the most common adverse effects noted after vaccination.

Conclusion: The study revealed that ChAdOx1 nCoV-19 vaccine induces high concentration of persisting anti-RBDS1 IgG antibody after 2nd dose and previous infection with SARS-CoV-2 acts as immune priming. Therefore, antibody screening test prior to booster dose could be a good option to maximize coverage of vaccination.

IMC J Med Sci. 2023; 17(1): 009. DOI: https://doi.org/10.55010/imcjms.17.009

*Correspondence: J. Ashraful Haq, Department of Microbiology, Ibrahim Medical College, 1/A Ibrahim Sarani, Segunbagicha, Dhaka, Bangladesh. Email: jahaq54@yahoo.com
Obturating Materials for Primary Teeth – A Review
Authors: Mathivadhani M.S , Moses Dr. joyson , Sharanya Dr. R.
Published: December 2022

If an infected tooth can be repaired and is disease-free, it should be managed and kept in the dental arch as a natural space maintainer. The care given to deciduous teeth differs from that given to permanent teeth. There have been a number of obturating materials developed for use in primary teeth's root canal fillings, but none have been able to meet all of the material's desirable qualities. The major objective of the medical professional should be to fill the root canal with a substance that may best fulfill the ideal qualities' strictest requirements. In light of this, the purpose of this review is to outline several obturation materials utilized in routine clinical practice.