bluuebunny/crossref_metadata_2025 huggingface dataset:
Quantitative trading models based on Sufficient Dimension Reduction and Ensemble Learning
Authors: Wang Jiaheng
Published: March 2024

With the continuous development of the securities market, constructing quantitative trading strategies with strong generalization ability the adaption to dynamic and changeable market environment is becoming more and more momentous in the field of quantitative finance. Under such circumstances, this paper proposes a stock prediction model based on sufficient dimension reduction theory and ensemble learning, which can be deployed on quantitative trading strategy. The proposed model on the one hand alleviates the curse of dimension by using the sufficient dimension reduction method and maximally retains variation of stock factors, on the other hand employs ensemble learning technique which can weigh model bias and variance to address the overfitting or underfitting problems. Furthermore, since ensemble learning are model free, different sub-models can be applied to improve the generalization ability of the algorithm on predicting occasions. In the section of accuracy comparison and quantitative trading strategy experiments based on real stock datasets, the proposed model demonstrates the best prediction results and adequate robustness compared to other existed methods.
The impact of internal controls on quality corporate development
Authors: Zhang Yanghui , Sun Yeting , Bi Zexin
Published: March 2024

Internal control is a crucial corporate internal governance tool that aids in improving total factor productivity and the high-quality growth of businesses. This article examines the connection between internal control and superior corporate growth using a research sample of A-share listed businesses from 2003 to 2020. The effectiveness of internal control has been demonstrated to support high-quality corporate development. The quality development of enterprises has some regional heterogeneity and the quality of internal control of enterprises in the western region plays a stronger role in promoting the quality development of those enterprises, according to further research. Additionally, there is some geographical variability in the quality of company development, and the western region's quality of internal control of businesses has a bigger influence on this development. The most immediate policy implication of this article is how to strengthen internal control effectiveness in order to support high-quality firm development and contribute to Chinese modernization.
Examining Green Trade under the Green Economy between China and the countries along the Belt and Road
Authors: Pan Shuhan
Published: March 2024

Currently, the "green economy" is increasingly becoming an important concern of the international community, and coordinating the relationship between economic growth and the environment has become a game point among major powers. Global climate problems, sharp decrease of resources, deterioration of ecological environment and other issues have prompted mankind to think about a more sustainable development model. As an important strategy of China, the "the Belt and Road" strategy is also facing environmental constraints. Based on this background, this paper affirms the necessity of China's development of green trade along the "the Belt and Road", and believes that promoting countries along the Belt and Road to jointly build a green community will not only boost the transformation of China's economic development model, but also help countries along the Belt and Road gradually take the path of sustainable development. This paper also analyzes the current status of green trade in China and the "the Belt and Road" countries, and believes that there are also some difficulties in the opportunities, such as the lack of high-level ecological demand, insufficient technological innovation, and the existence of GDP only theory. It is of practical significance to put forward countermeasures and suggestions.
The Impact of Educational Development on the Economy in China and the United States
Authors: Jia Haoyuan
Published: March 2024

For a long time, investment in education and economic development has been the focus of attention in education and economics, since the 19th century, investment in education in the West, has been recognized by professionals as one of the indispensable elements to promote economic development, this study will analyze and compare the differences between China and the United States in education, the strengths and weaknesses of the two countries' direct education, and its how it affects and promotes its economic development, and research for the investment in education in China and the U.S., its share of GDP and the relationship between the per capita GDP of each country to compare. It confirms the conclusion that education promotes economic development and that China's investment in education has a higher rate of return than that of the United States. Finally, it also points out how China can improve the existing education environment, and how to improve some of the current education policies that are not fully in line with the development of the times, in order to actively and effectively promote China's economic development in the long term.
Study on the Relationship between Energy Structure Change and Economic Structure in China
Authors: Chen Cheng
Published: March 2024

Since 1978, China's economic growth rate has attracted international attention. While China's economy has maintained rapid growth, energy consumption has shown an opposite trend, namely, the growth rate of energy consumption has slowed down, and the energy consumption intensity of the national economy has continued to decline. The tertiary industry is underdeveloped, and the producer service industry is stagnant, with outstanding problems. It is worth noting that the proportion of China's industrial added value in GDP(Gross Domestic Product) exceeded the peak value of developed countries during the Wang Yehua period. Under the new normal of economic growth shift and tight resource and environment constraints, structural contradictions will become more prominent in the coming period. In order to practice the low-carbon economic model, the government puts forward the requirements of ensuring China's energy and economic security and accelerating the transformation of energy revolution and economic development mode. However, structural adjustment is not a simple superposition of policies and measures. This paper studies the relationship between energy structure change and economic structure in China. Structural adjustment is not simply the superposition of policies and measures. We must also with comprehensive consideration of energy supply security and use security, so as to provide decision-making basis for ensuring energy security and carrying out national macro-control.
The Prediction of Stock Index and Gold Price Using ARIMA Model
Authors: Gao Qifan
Published: March 2024

This study uses ARIMA modeling to forecast how the behavior of the US stock market and gold prices following an interest rate hike by the Federal Reserve. This paper also provides valuable decision-making guidance to investors with respect to the stock market and gold price indices. The primary dataset utilized in the methodology section revolves around the S&P 500 Index, whereas the secondary dataset mainly focuses on gold Price. Based on these findings, it is projected that the S&P 500 will experience a decline over the next three months, while gold prices, on the contrary, are expected to witness an increase. Based on these findings, it is recommended that investors allocate a larger proportion of their investment towards gold, while simultaneously reducing their exposure to stocks in the foreseeable future. This strategic approach aims to optimize potential gains and mitigate risks, aligning with prudent investment practices in a volatile market environment.
Analysis of Big Data Application in Real Estate Investment
Authors: Guo Yifan
Published: March 2024

As an important project of national economic growth, real estate plays an important role in education, scientific research and production industries. Despite the slower pace of urbanization, However, the development of real estate has started to slow down currently, and there have been problems such as market differentiation and changes in consumer demand. At the same time, many investors' investments are blindly aimed at adapting to the market, which can easily lead to losses. With the development of the information age, big data can process massive amounts of information and provide investors with effective reference when investing in real estate, thereby improving the efficiency and gold content of real estate investment. This study will describe the application of big data in real estate investment from four aspects: information mining system, housing price evaluation, risk profile and marketing. The information mining system is mainly used in the initial stage of development to provide decision-makers with the preferences of the target customer group. House price prediction and risk prediction are mainly based on BP neural networks. Marketing mainly describes the application of big data in real estate sales. These results demonstrate how big data can help investors better choose investment objects, save investment costs and better meet market demand in the current market environment.
Analysis of Marketing Strategy of NIO’s New Energy Vehicles
Authors: Diao Chenfeng
Published: March 2024

Based on the two problems of energy security and ecological environment, China's new energy automotive sector as an important developing industry to expand in light of the growing global energy crisis, environmental pollution, and driving safety challenges. NIO’s new energy enterprises were established in this context in 2014. In the case of the expansion of the new energy vehicle market and gradually stronger competition, NIO has stood out and become one of the leaders of China's new energy vehicle industry. Based on this, the research evaluates the marketing strategy benefits of NIO’s new energy vehicles, which are high-quality service and unique brand marketing strategy, and lists the marketing plan's shortcomings in terms of three categories: product, pricing and channel, and makes pertinent recommendations. It offers strategies for the long-term operation of NIO’s new energy vehicles, references for improving the marketing plans of new car-making forces, helpful pointers for modernizing and transforming the marketing plans of traditional car companies, and some inspiration for developing the marketing plans of new energy vehicle companies.
Analysis of Enterprise Merger and Reorganization Based on DCF Valuation Model
Authors: Dai Yuchen
Published: March 2024

Contemporarily, in the process of China economic development, state-owned enterprises have exposed problems such as non-prominent main business and homogenized competition. The new round of state-owned enterprise reform aims to solve these problems, and reasonable evaluation of reformed enterprises is of great practical significance. This paper takes the case of the merger of China Electronics Technology Group Corporation (CETC) and China Potevio as the research object. The DCF valuation model is used to evaluate the enterprise value of the merged CETC, and the enterprise value of China Electronics is 13.77/share. Combined with the financial performance evaluation system of the electronics industry, it is concluded that the reform of state-owned enterprises should pay attention to the relationship between the industrial chain and bring into play the synergistic effect the merger behavior of China Electronics is evaluated, and the merger of China Electronics is successful and beneficial to the development of China electronics industry.
Virtual Anchors in the Metaverse: Exploring the Future of Live Broadcasting in the Digital Age
Authors: Chen Zhixun
Published: March 2024

As the barrier to entry for live content production diminishes, virtual anchors, employing avatars to engage with audiences, have gained significant traction. The global VTuber market has seen consistent growth, projected to be a dominant force with the Metaverse's increasing prominence. The paper investigates the rise of virtual anchors in the live broadcast industry amidst the rapid expansion of the Internet, examines the operational models, profit methods, and connections between virtual anchors and the Metaverse. It employs data from research and case studies and literature review to explore the potential of virtual live broadcasting. While virtual anchors present advantages like non-stop live broadcasting, they face authenticity and real-time interaction challenges. Integrating virtual live broadcasting with the Metaverse offers unique opportunities for deeper audience engagement and diversified revenue streams. However, ensuring user privacy and addressing authenticity concerns are crucial. The paper concludes by emphasizing responsible growth and innovation to unleash the full potential of virtual live broadcasting within the dynamic realm of the Metaverse.
Research on the Determinants of Poverty in Different Countries
Authors: Zhang Yutong
Published: March 2024

This study investigates the factors contributing to variations in poverty levels among different countries. The data in this research is sourced from the World Bank, employing pooled cross-sectional data over time for each variable. A comprehensive set of diagnostic tests is applied to examine the research hypotheses. Contrary to the initial assumption that foreign direct investment and the proportion of the female labour force could alleviate poverty, the findings demonstrate that poverty is primarily influenced by factors such as agriculture, grants, and advancements in science. As a result, it is recommended that organizations and advanced nations adopt distinct approaches when dealing with impoverished countries. Different policies should be implemented to enhance efficiency and capacity in poverty reduction efforts.
Impacts of ESG Factor on Corporation Evaluation: Evidence from BYD’s Acquisition of Xi’an XIVO Bus
Authors: Cheng Yubo , Dong Meitong , Wu Yunzhen
Published: March 2024

As a matter of fact, ESG factor shows a great importance in corporation valuation. This paper combines the collective consciousness of global sustainability to find a new way of valuing companies in terms of their expressiveness in the three directions of environment, social responsibility, and corporate governance and conjunction with the traditional income approach. The role of ESG factors is incorporated into calculating the operating revenue growth rate by taking the acquisition of Fresh XIVO Bus Group by BYD Company Limited, one of the most ESG-representative new energy automobile companies in China, as an example. Firstly, we compare the profitability of the enterprise before and after the acquisition to discuss the impact of ESG behaviors on the enterprise, then construct a DCF model to predict the cash flow performance in the next five years after the acquisition, and finally indicate the market value of the enterprise under the role of ESG through discounting. According to the analysis, strong ESG performance has helped BYD offset some of the pressures that existed due to the retreat of government subsidies. BYD will start with a slight deceleration but continue to thrive over the next five years.
Application of Deep Learning in Regional Financial Risk Assessment and Prediction
Authors: Ma Yingkai
Published: March 2024

As the economy enters the new normal, more and more risk problems are exposed in the financial market, and the market supervision system is still not perfect. Preventing financial risks has become the focus of domestic attention. Ubiquitous risks have increasingly become the "sword of Damocles" hanging over the main body of financial markets. Due to the differences in regional economic development, regional financial risks will become more complicated, which is likely to lead to a nationwide financial crisis. The application of DL (Deep Learning) has become the research frontier in the field of financial risk management, which will surely bring about subversive changes in the field of financial risk management. Through DL, we can quantitatively evaluate the financial risks in different fields, closely monitor the key industries and fields with the highest regional financial risk distribution, strengthen risk monitoring and analysis, promptly use risk warning letters, situation reports and other forms to prompt risks, prevent the spread and spread of risks in specific industries or fields, and do a good job in risk prevention and response. In order to effectively identify regional financial risks, timely understand and master the distribution and impact of various risks, and do a good job in risk monitoring and prompting.
Fisher's Separation Theorem and its Limitations
Authors: He Xinyu
Published: March 2024

When businesses make investment decisions, they often evaluate the Net Present Value (NPV) of investment projects. For investors, a project is deemed worthwhile if its NPV is greater than zero. This phenomenon can be attributed to the Fisher Separation Theorem, which asserts that in perfectly efficient capital markets without transaction costs, a single interest rate prevails. In this context, investors' production choices adhere strictly to objective market regulations aimed at maximizing attainable wealth, entirely detached from individual subjective preferences. This, in turn, enables both borrowers and lenders to base their consumption and investment decisions on the prevailing market interest rate, thereby encouraging a clear distinction between investment and financing choices. Therefore, a company's investment decisions can be discussed separately from its financing decisions. So, the enterprise's investment decision and financing decision can be discussed separately. When enterprises invest, enterprises do not have to consider the subjective consumption preferences of different investors, because investors' consumption preferences can be satisfied accordingly through perfect capital market operation. Because of Fisher's Separation Theorem, which requires the market to be transaction cost-free, it also has some limitations.
Analysis of Apple's Classic Ads - Strengths and Weaknesses
Authors: Wang Ruitao
Published: March 2024

Advertising and marketing are one of the key topics of research today. For the company and research, it is important to learn from the past excellent advertising and marketing cases and analyze the shortcomings of the predecessors to improve themselves. The researcher found that there is a good research space for Apple's advertising and marketing cases, and there is still a research gap in the analysis of Apple's classic advertising cases. This study explores the effectiveness of four major Apple Inc. advertising campaigns, understanding their impact on brand image and market positioning. Through comprehensive literature analysis, the study dissects the advantages and shortcomings of the "Macintosh's Introduction in 1984," "Think Different," "Silhouette Campaign," and "Shot on iPhone" campaigns. While these campaigns have been instrumental in creating a distinct brand image, they have exhibited limitations in providing comprehensive product information and broad audience appeal. The study concludes that the emphasis on user engagement, transparency in content selection, and a holistic portrayal of product capabilities could bolster the effectiveness of such campaigns. This article is crucial for devising impactful advertising strategies in technology markets.
Comparative Analysis of Financial Performance Using Financial Ratios and Economic Value Added
Authors: Karim Kurniati
Published: March 2024

This study aims to determine 1) monitor the financial performance of PT. Indofood Sukses Makmur Tbk. based on Financial Ratios 2) financial performance of PT. Indofood Sukses Makmur Tbk. based on Economic Value Added (EVA) 3) calculated based on the financial performance of PT. Indofood Sukses Makmur Tbk. based on Financial Ratios and EVA. Results Based on the research shows that the liquidity ratio is measured using the Current Ratio (CR). the average CR was 159% or 1.59 times, indicating that the company cannot afford the short term or the debt is due soon. The solvency ratio is measured using the Debt to Equity Ratio (DER) the average DER is 92.72%, indicating that the company uses other parties' capital more than its own capital. Activity Ratio is measured using TATO. TATO obtained an average of 74% or 0.74 times indicating ineffective asset turnover or the company has not maximized assets in generating sales. Profitability ratios are measured using ROE.  ROE of 11.48% was obtained, indicating that the company does not yet have equity in obtaining company profits or profits. Meanwhile, by using the EVAmethod, the average EVA is 1,288,895 which shows positive results or EVA > 0. From the results of this explanation it can be said that the measurement of financial performance is better using the EVA method.
Perancangan Aplikasi Pencarian Fasilitas Kesehatan ‘Find Medical’ dengan Menggunakan Metode Haversine dan Algoritma Dijkstra
Authors: Elrico Tanto Jaya  , Ade Maulana  , Jefri Junifer Pangaribuan
Published: March 2024

Currently, technology is rapidly advancing, enabling communication to be done with anyone, anywhere. The sophistication of this technology can be utilized to address issues in various fields, particularly in the healthcare sector, as healthcare is one of the most influential aspects of human life. One common problem in the healthcare sector is the lack of evenly distributed information about healthcare services, leading to difficulties for individuals in finding suitable healthcare facilities. Therefore, this research aims to develop an application called "Find Medical" as a solution to facilitate the public in searching for healthcare services that meet their needs. In this study, the Haversine method and Dijkstra's algorithm are employed to recommend the nearest healthcare services based on the user's location. The research objectives are to design the "Find Medical" application and analyze the accuracy of the employed methods. The "Find Medical" application is developed using the Laravel framework. Based on the testing results, the majority of respondents agree that the application is effective in addressing the inefficient healthcare information retrieval system. Additionally, the Haversine formula and Dijkstra's algorithm implemented in the application provide accurate recommendations with a precision rate of 90%. Therefore, the "Find Medical" application can be an effective and efficient solution for individuals seeking appropriate healthcare services.
Pengaruh E-Wom dan Brand Image terhadap Repurchase Intention yang Dimediasi oleh Customer Trust Teh Pucuk Harum di Kota Bandung
Authors: Aprilia Dinda , Evangalista Leni
Published: March 2024

Penelitian ini bertujuan untuk menganalisis pengaruh E-WOM dan brand image terhadap repurchase intention yang dimediasi oleh customer trust Teh Pucuk Harum di Kota Bandung. Instrumen penelitian ini telah melalui tahap uji validitas dan reabilitas, uji asumsi klasik dan uji regresi berganda. Instrumen tersebut digunakan sebagai alat pengumpulan data dari responden laki-laki dan wanita yang berusia minimal 17 tahun yang pernah mengkonsumsi minuman Teh Pucuk Harum yang merupakan objek yang dinilai dalam penelitian ini. Jumlah responden yang terlibat dalam penelitian ini adalah 120 orang. Teknik pengumpulan data yang digunakan yaitu cross-sectional atau one shot study. Teknik analisis data yang digunakan adalah regresi berganda dengan menggunakan alat bantu SPSS versi 26 dan menggunakan uji sobel. Temuan penelitian ini menjelaskan bahwa E-WOM, brand image, dan customer trust berpengaruh positif terhadap repurchase intention. Hal yang membedakan penelitian ini dengan penelitian sebelumnya yaitu objek yang dinilai dalam penelitian ini adalah minuman Teh Pucuk Harum. Hasil penelitian ini juga bermanfaat bagi pihak perusahaan atau manajer objek yang dinilai yaitu minuman Teh Pucuk Harum dan industi minuman yang sejenis terkait perancangan srategi yang relevan bagi peningkatan kualitas atribut tersebut.
Analisis Kualitas Produk dan Minat Berwirusaha dalam Rangka Pengembangan Usaha Batik Melalui Pemberdayaan Masyarakat di Kecamatan Onan Ganjang Kabupaten Humbang Hasundutan
Authors: Siagian Nalom , Sihombing Natalia ET.
Published: March 2024

Tujuan penelitian ini adalah untuk menganalisis kualitas produk, minat berwirausaha dan pemberdayaan masyarakat terhadap pengembangan usaha Batik Onan Ganjang Humbang Hasundutan menggunakan analisis jalur IBM SPSS AMOS dengan sampel sebanyak 120 pelaku usaha dan pekerja. Penelitian ini menggunakan data primer dan data sekunder yang dihimpun menggunakan skala liskert dan observasi lapangan. Hasil penelitian menunujukkan bahwa Kualitas produk tidak berpengaruh terhadaap pengembangan usaha dengan nilai Value (p) 0,142 > 0,05. Kualitas Produk berpengaruh siqnifikan terhadap Pemberdayaan Masyarakat, dibuktikan dengan nilai palue (p) 0,000 < 0,05. Minat Berwirausaha tidak berpengaruh terhadap Pengembangan Usaha, dibuktikan dengan nilai palue (p) 0,530 > 0,05. Minat Berwirausaha berpengarug terhadap Pemberdayaan Masyarakat dengan nilai palue (p) 0,000 < 0,05. Pemberdayaan Masyarakat berpengaruh terhadap Pengembangan Usaha dengan nilai palue (p) 0,000 < 0,05. Kualitas Produk berpengaruh siqnifikan terhadap Pengembangan Usaha melalui Pemberdayaan masyarakat menggunakan uji sobel hasil t hitung= 7,3304 > t tabel (0,05; 110-4)= 1,982597, dan Minat Berwirausaha berpengaruh siqnifikan terhadap Pengembangan Usaha melalui Pemberdayaan masyarakat dengan hasil t hitung = 4,014907 > t tabel (0,05; 110-4) = 1,982597.
Pengaruh Penggunaan Bahan Ajar Biologi dengan Pendekatan Contextual Teaching and Learning (CTL) pada Materi Ekosistem Terhadap Hasil Belajar Siswa
Authors: Nuhuyanan Yuliana , Seknun M. Faqih
Published: March 2024

Teaching materials are a set of subject matter that is arranged systematically displaying the integrity of the competencies that will be mastered by students in learning activities. Teaching materials can help teachers in delivering learning materials, so that learning objectives can be achieved. This study aims to determine the effect of the use of biology teaching materials with a Contextual Teaching and Learning (CTL) approach on ecosystem materials on the learning outcomes of grade VII MTs Al-Hilaal students. This type of research is quantitative descriptive with a sample of 32 people. The instruments used are questionnaires and test questions. The data analysis technique used uses simple linear regression analysis by first conducting a pre-requisite analysis test, namely the data normality test and the data homogeneity test. Based on the results of data analysis, it is known that there is a significant influence on the use of biology teaching materials with a Contextual Teaching and Learning (CTL) approach on ecosystem materials on the learning outcomes of grade VII MTs Al-Hilaal Katapang students. The influence of the use of biology teaching materials with a Contextual Teaching and Learning (CTL) approach on ecosystem materials on the learning outcomes of grade VII MTs Al-Hilaal Katapang students, West Seram Regency, is 59.20% and the remaining 40.80% is influenced by other factors.
What Does Teacher’s Perception of Feedback in EFL Classroom? Insights From Non-Formal Education Institution
Authors: Hidayat Muhammad , Mursyid Andi Miftahul Maulidil
Published: March 2024

Many studies in teachers’ perception of feedback have been done in mostly government educational institution. Otherwise, studies investigating the teachers’ perception in non-formal education setting is still insufficient. This study aims to analyze EFL teachers’ perception of feedback at non-formal education institutions. The data used in the research were assembled for about 2 months, starting from January to March 2023, and they were collected through observation and sharing questionnaires via google form. The participants were 8 English teachers. In addition, this qualitative research used thematic analysis to analyze the data. Based on the data analysis, this study revealed that providing feedback to students in EFL classroom is important and it should be mandatory. Also, students’ will not get any insight of their academic performances if teachers do not provide any feedback for them. At last, feedback process is best to give at the end of every session. The other issues are also discussed here
ATUAÇÃO DO AGENTE COMUNITÁRIO DE SAÚDE NA GESTAÇÃO E PUERPÉRIO: OLHAR DAS MULHERES
Authors: Hendler Vitória Hahn , Schacker Lisara Carneiro
Published: March 2024

A atenção à mulher durante a gestação e puerpério é extremamente importante, sendo os agentes comunitários de saúde elos fundamentais na comunicação entre a população e o serviço de saúde. O objetivo deste trabalho é conhecer o olhar das mulheres sobre a atuação dos agentes comunitários de saúde durante o seu período gestacional e puerpério. Trata-se de uma pesquisa descritiva com abordagem qualitativa realizada através de uma entrevista semiestruturada com nove mulheres residentes em um município da região Metropolitana de Porto Alegre. Esse estudo respeitou a resolução do Conselho Nacional de Saúde número 466 de 12 de dezembro de 2012 e foi submetido ao Comitê de Ética em Pesquisa, sendo aprovado com o registro 71417623.6.0000.5348. A coleta das informações ocorreu durante o mês de setembro de 2023. Para a análise foram utilizados os pressupostos de Bardin onde foram classificadas duas categorias: Potencialidades na Atuação; Fragilidades na Atuação. Foi possível identificar que algumas mulheres consideraram a atuação do agente comunitário como adequada, já que priorizaram o cuidado com o filho, no entanto esta posição não foi unanime. Surgiram fragilidades como falta de sistematização das visitas e carência de informações. Evidencia-se que é necessário aprimorar o processo de trabalho destes profissionais através da educação permanente nos serviços, bem como a necessidade do fortalecimento das lideranças para um acompanhamento efetivo dos resultados das ações destes profissionais, objetivando a saúde da díade.
La reforma de la ley electoral: respuesta al profesor Nohlen
Authors: de Esteban Alonso Jorge
Published: March 2024

Se aportan ideas relativas a la reforma del sistema electoral español, ya avanzadas en el diario El País los días 16, 18 y 19 de agosto de 1981. Se critica a Dieter Nohlen por su concepto de "normas mínimas para la reforma electoral", ya que se considera inadecuado para captar la complejidad del actual debate. Se tratan temas como el abstencionismo, el conflicto y división de partidos, la influencia del sistema electoral en el sistema de partidos y el problema básico de establecer un régimen viable política y económicamente
La teoría crítica y el problema del método en las ciencias sociales
Authors: De Cambra Bassols Jordi
Published: March 2024

Se contrasta la teoría crítica de la investigación sociológica con la actualmente dominante metodología positivista como base de la crítica social. La metodología positivista falla por lo siguiente: la adopción del método de las ciencias naturales como paradigma; la pretendida neutralidad y apoliticidad de un método cercano a la reproducción de los valores tradicionales; el compromiso con el individuo como el foco de la realidad social; la adhesión a un modelo de verdad como un valor presupuesto por los métodos de la investigación científica. Se propone que sólo una teoría que reconozca su autonomía de la objetividad social puede ser usada para generar una crítica viable de la sociedad
Valores y actitudes de los jóvenes ante el trabajo
Authors: Sanchis Gómez Enric
Published: March 2024

Una revisión de la bibliografía española, italiana, y francesa referente a las actitudes y a los valores de la gente joven que ha terminado su educación obligatoria y está buscando su primer trabajo. El trabajo como valor va cediendo terreno al trabajo como instrumento.
Nghiên cứu sử dụng bùn thải làm nguyên liệu sản xuất gạch đất sét nung
Authors: Trung Nguyễn Văn , Tĩnh Nguyễn Trọng , Quyên Nguyễn Thị Lệ , Qui Dương Thanh
Published: March 2024

Bùn thải từ quá trình xử lý nước nhà máy dệt có thành phần bao gồm cả phần hữu cơ và vô cơ. Thành phần vô cơ chứa chủ yếu sắt chiếm 50 %, kiềm thổ (CaO+MgO)~ 20 % và lượng nhỏ các oxit khác. Bản thân bùn có nhiệt trị khoảng 2000 kcal/kg giúp làm giảm lượng than sử dụng, giảm sử dụng nhiên liệu hóa thạch, giảm phát thải CO2. Gạch có sử dụng bùn thải có tính chất cơ lý tốt hơn loại gạch không sử dụng bùn thải, thể hiện ở việc đạt mác 200 trong khi gạch đối chứng chỉ đạt mác 150.
Nghiên cứu đề xuất cấu tạo mặt cắt của kết cấu sàn liên hợp bằng bê tông cốt lưới dệt và bê tông cốt thép
Authors: Nguyễn Công Hậu , Nguyễn Thị Thu Thủy
Published: March 2024

Bài báo trình bày nghiên cứu đề xuất cấu tạo mặt cắt của kết cấu sàn liên hợp bằng bê tông cốt lưới dệt và bê tông cốt thép. Hai dạng mặt cắt là dạng đặc và dạng rỗng được đề xuất. Kết quả khảo sát các tham số hình học của tiết diện đã tìm ra kích thước phù hợp cho mỗi dạng mặt cắt theo điều kiện chịu lực và điều kiện biến dạng. Ngoài ra, kết quả khảo sát cũng cho thấy tiết diện dạng đặc hợp lý hơn so với tiết diện dạng rỗng cả trong quá trình chế tạo và khi chịu lực.
Assessment of Strength and Bending of Concrete Containing Crushed Glass and Fibers
Authors: Firoozi Ali Akbar , Firoozi Ali Asghar , Dithinde Mahongo , Bome Obakeng
Published: March 2024

Abstract

This paper presents proposed investigations of the influence of crushed glass and fibers on the mechanical properties of concrete. Conventional concrete has lack tension in order to improve its flexural strength and compressive strength. This study has adopted the addition of PET fibers and recycled waste glass fibers to concrete. The study uses M25 grade concrete to study the effects of adding crushed waste glass at a weight of 0, 5, 10, and 15%. The PET fibers were extracted from waste bottles used for packaging of drinks and hand cut into very small rectangular pieces (with an average size of 3×10mm). For the mix design, the addition of 0, 3, 5, and 10% dosages of PET fiber was adopted to compare their influence against plain concrete with no fiber addition. Both fiber samples were tested for compressive strength and flexural strength and samples were cured for 7, 28, 56, and 90 days. Results showed that the combination of using crushed glass and PET fibers has a significant effect on compressive strength (i.e., 122%) and flexural beam test (56%) for 90 days of cured samples.
Tendoscopía en disfunción del tendón tibial posterior Estadío I: 8 años de seguimiento
Authors: Khazen Gabriel
Published: March 2024

Cuando fracasa el tratamiento conservador en el Estadio I de Disfunción del Tendón Tibial posterior (DTTP), se debe indicar sinovectomía y debridamiento del tendón. En este estudio evaluamos la evolución con 8 años mínimo de seguimiento, de los pacientes con esta patología tratados vía tenoscópica. Este es un estudio retrospectivo de pacientes operados entre el año 2008 y el año 2011. En ese período de tiempo se intervinieron 11 pacientes con esta patología. Sólo 9 de los 11 pacientes operados pudieron ser evaluados. 7 pacientes mejoraron su sintomatología según el VAS y no progresaron a estadio II. En 3 pacientes se evidenció lesión tendinosa durante la tendoscopía y ameritaron reparación a cielo abierto. La sinovectomía tendoscópica del TTP es un procedimiento quirúrgico efectivo para tratar a los pacientes con DTTP Estadio I, rebeldes a tratamiento conservador.
PENERAPAN UPAYA PREVENTIF POSISI ANGKAT ANGKUT UNTUK MENGHINDARI TERJADINYA NYERI PUNGGUNG BAWAH DI POSYANDU SUMUR REJO GUNUNG PATI
Authors: Shella Dhika Rahmawati  , Ni Kadek Krisna Dwi Patrisia  , Almita Ratu Rifanda  , Sofia Mardiana  , Friesca Persityara Agatha  , Aulia Ayu Kusuma W.
Published: March 2024

Low back pain is a condition where the lower back feels very painful and can result in hampering activities. Based on the data obtained, the community in the Gunung Pati area works as a porter and often feels pain in their lower back. Usually residents only apply balsam if they feel lower back pain. There are still many residents who underestimate these complaints and many residents are wrong when lifting heavy items.
Sosialisasi Kesehatan Reproduksi Sebagai Upaya Peningkatan Lifestyle Remaja Yang Sehat dan Unggul Di Desa Tuah Mesade
Authors: Halimatussakdiyah Lubis  , Fika Lestari
Published: March 2024

Period most vulnerable to experiencing reproductive health problems such as early pregnancy, unsafe abortion which can cause the death of mother and child, depression, sexually transmitted infections (STIs) such as Human Immunodeficiency Virus (HIV), sexual harassment, infertility, and malignancies such as cervical cancer. Adolescents begin to focus on behavior that is associated with adult status, namely smoking, drinking alcohol, using drugs, and engaging in promiscuous sexual acts which are quite disturbing. Community Service "Reproductive Health Socialization as an Effort to Improve the Healthy and Excellent Lifestyle of Adolescents in Tuah Mesade Village was held on 9-11 February 2024 with a total of 30 participants. Socialization is provided by the community service team regarding the introduction of male and female reproductive organs, how to care for reproductive organs, nutrition in reproductive health, and sexually transmitted infections. The extension participants seemed enthusiastic about the materials presented by the resource persons and were able to be actively involved, so this extension activity took place in a two-way system and many participants asked questions. The presentation of the counseling material was followed by discussion, ice breaking, and distribution of door prizes in the form of a book with the title "Teaching Book on Nutrition in Reproductive Health" to participants who were active during the discussion activities.
Komunikasi Edukasi Penyuluhan Slow Deep Breathing Exercises Terhadap Hipertensi Pada Warga Kelurahan Sumber Surakarta di Wilayah Binaan Puskesmas Banyuanyar
Authors: Jihan Bariqa Arya Ramadhani  , Arin Supriyadi  , Selina Sinta Debi
Published: March 2024

Background: High blood pressure, commonly known as hypertension, is a medical condition that must be taken seriously. If uncontrolled, hypertension can cause various complications from other serious diseases. Seeing the high prevalence of hypertension in Indonesia, efforts are needed to reduce blood pressure in elderly people who suffer from hypertension. The aim of this activity is to provide educational outreach about hypertension, namely a slow deep breathing exercise training program to help lower blood pressure in residents suffering from hypertension.Method: Community Service Counseling is carried out using leaflets, blood pressure checks using a sphygmomanometer and blood pressure lowering exercises using the slow deep breathing exercise technique. The population for this activity are residents of the Sumber Surakarta subdistrict.Results: One effective treatment method for patients with hypertension is slow deep breathing exercises. This community service activity was held at Posyandu Posyandu COE Catur Manunggal RW 16 Sumber. Conclusion: The outreach and education activities on slow deep breathing exercises for hypertension carried out at Posyandu COE Catur Manunggal RW 16 Sumber Village, can increase the knowledge of cadres and residents about hypertension and slow deep breathing breathing exercises. The results are expected to bring improvements to the quality of life of residents suffering from hypertension
Branched hierarchization of indicators related to rural housing for environmental health evaluation
Authors: Félix Marcus Vinícius , Oquendo Sandra Patricia , Andrade Junior Alan Cardek Lopes , Cambraia Rosana Passos , Carvalho Marivaldo Aparecido de , Freitas Bethânia Alves de Avelar , Prat Bernat Vinolas
Published: March 2024

The Brazilian rural communities concentrate a significant fraction of the population exposed to deficient conditions in water supply, sanitary sewage, and solid waste management, which, combined with housing conditions, directly impact the quality of a healthy environment. Few studies have evaluated the salubrious conditions of a rural environment, and in the searches carried out, the use of branched hierarchical techniques was not verified. The objective of this work was to create a branched hierarchization of those variables that are the cause of unhealthy conditions of the housing environment. Initially, all the variables that affect the salubrity of the housing environment were listed, to later order them in a ramified form. Afterwards, and based on the technical literature, the parameters of adequacy and/or inadequacy of these variables were defined. This methodology was tested in a rural dwelling in order to exemplify its applicability. The application of the proposed tool has demonstrated a satisfactory practical use, with low time spent for its conclusion, besides providing a realistic characterization of the environment evaluated. This work provides an easily applicable methodology for obtaining a detailed report on the degree of adequacy of a wide range of variables that influence the healthiness of rural dwellings.
Incision in the base and indolebutyric acid to promote the rooting of 'Bengal' litchi cuttings
Authors: Assis Adriane Marinho de , Madruga Francine Bonemann , Pagel Guilherme de Oliveira , Silva Emily Burguêz da , Werle Cecília de Oliveira , Nörnberg Guilherme Buchweitz , Yamamoto Lilian Yukari , Roberto Sergio Ruffo
Published: March 2024

A alternative to producing litchi (Litchi sinensis Sonn.) seedlings is by cuttings. However, the main drawback of using this method is related to the difficulty of rooting presented by this species. Thus, the objective of this study was to evaluate the rooting of semihardwood cuttings of litchi ‘Bengal’ at different concentrations of indolebutyric acid, with or without incision in the base. The experimental design was completely randomized with five replicates of 10 cuttings in a factorial 3X2 (three IBA concentrations: 0, 1.000 and 2.000 mg L-1; with or without incision in the base). After 126 days, the variables evaluated were: cutting survival, leaf retention, cutting with callus not rooted, rooted cutting, number of roots per cutting, length of major roots per cutting and dry weight of roots per cutting. For rooting, the IBA application was efficient only when the cuttings were not injured. In addition, there was no influence of the types of cuttings in the IBA concentrations. However, in those with incision at the base, the means were higher without the application of the plant growth regulator. Thus, the 'Bengal' litchi can be multiplied by semihardwood cuttings with incision at the base of the cuttings, without the use of IBA.
Capitalism as “the best of all possible worlds”: a marxist critique of Boaventura de Sousa Santos' postmodern political thought
Authors: Almeida Rodrigo Davi
Published: March 2024

The general aim of this work is to critically analyse certain conceptions and political positions of Boaventura de Sousa Santos on the problems of Western modernity and postmodernity. For the Portuguese sociologist, Western modernity is going through an unprecedented crisis of civilisation that can be identified through three fundamental dimensions: the epistemological dimension (the problem of Western scientific knowledge), the theoretical dimension (the problem of the Marxist theory of social emancipation) and the political dimension (the problems of the liberal social contract, social fascism and the disunity of left-wing forces). Postmodernity, however, represents the possibilities and opportunities for overcoming that crisis in view of the epistemological (the ecology of knowledge), theoretical (the new emancipatory political culture) and political (high-intensity democracy) renewals that are underway. The main hypothesis to be presented is that Boaventura Santos' political conceptions and positions – in parallel with his limited understanding of Marxism, the main interlocutor and target of his often mistaken criticism – correspond to the postmodern ideology, which can be characterised, according to Marxism, by epistemological scepticism, contempt for history and political defeatism. In this vein, the theoretical framework adopted here necessarily comes from Marxism, understood, according to Michael Löwy, as a social worldview, that is, an organic, articulated and structured set of values, representations, ideas and cognitive orientations about man in his relationship with nature, society and history, internally unified by a determined perspective and a certain socially conditioned point of view.
Análise da geração de resíduos sólidos urbanos do município de Arraial do Cabo – RJ entre 2016 e 2023
Authors: Dutra José Arthur de Souza Santos , Sales Diego da Silva , Correia Vitor Guimarães , Sales Camila Mendonça Romero , Nunes Camila Henriques , Chaves Gustavo de Carvalho
Published: March 2024

O gerenciamento de resíduos sólidos é uma questão de extrema importância em todo o mundo, especialmente em Municípios turísticos como Arraial do Cabo, no Estado do Rio de Janeiro. A gestão inadequada destes resíduos resulta em impactos sociais, econômicos, ambientais e de saúde pública. Arraial do Cabo, que tem o turismo como sua principal atividade econômica, possui uma população residente de 30.968 habitantes, mas este quantitativo cresce significativamente durante os períodos de alta temporada, aumentando também a geração de Resíduos Sólidos Urbanos (RSU). Neste contexto, este trabalho visa analisar os dados dos RSU gerados em Arraial do Cabo – RJ, entre 2016 e 2023, com o intuito de compreender os padrões de geração destes resíduos em alta temporada. O trabalho classifica-se como uma pesquisa exploratória, bibliográfica e documental com carácter quantitativo. Observou-se que os meses que geram mais RSU no Município foram respectivamente janeiro, dezembro e fevereiro, que se situam no verão, com pico de geração no primeiro mês citado. Em relação aos anos, pode-se evidenciar um crescimento na geração de RSU durante o período investigado, excetuando-se 2020 e 2021, possivelmente pelo cenário pandêmico vivenciado. Calculou-se a taxa de crescimento anual das médias dos RSU gerados, considerando os anos de 2019 e 2022, antes e depois da pandemia, que resultou em cerca de 15%, e posteriormente, projetou-se as médias anuais da geração dos RSU dos próximos cinco anos, 2023 a 2027. A projeção mostrou-se adequada, uma vez que, a média dos RSU gerados em 2023 teve uma diferença mínima da média projetada para este mesmo ano. Por fim, destaca-se a necessidade urgente de atualização e implementação efetiva de um Plano de Gerenciamento de Resíduos Sólidos Municipal, que é de extrema importância para garantir a sustentabilidade ambiental e a qualidade de vida da população.