bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the Temperature Effect During the Lifting Stage of The Main Arch Ring of The Strong Skeleton
Authors: Yin Wei , Lei Haidong
Published: June 2024

In this paper, a finite element model of the main arch ring of the strong skeleton is developed in order to analyse the stress and deflection response of the strong skeleton under the action of uniform temperature during the lifting stage. Uniform temperature action was found to have a significant effect on the stresses and deflections of rigid skeletal stringers. The effect of the huddle on the stress and deflection of the skeleton at the non-design reference temperature was further investigated, and the results showed that the changes of the stress and deflection of the skeleton were directly proportional to the relative temperature difference (the difference between the huddle temperature and the design reference temperature).In addition, a reasonable value for the jointing temperature was analysed, and it was suggested that a value of 2℃slightly lower than the average annual temperature be used as the jointing temperature.
Application research of machine learning method based on DBN and RL in financial data analysis
Authors: Wu Wenjia , Han Minglei , Hu Yandong , Ma Jiaqi , Zhang Xiaolei
Published: June 2024

With the continuous development of various emerging information technologies such as big data, cloud computing, artificial intelligence and machine learning, many traditional enterprises are actively cross-integrating with it, especially financial enterprises. For example, the background of big data is used to help transform financial accounting into management accounting [1]; The application of Python in financial data mining and analysis [2]. In addition, machine learning technology also has a deeper application in the field of financial data analysis, and many experts and scholars have also studied the importance of machine learning technology in financial data analysis. For example, Cheng Ping, Yu Chang, Wang Jianjun et al. have elaborated on the intelligent early warning of enterprise internal audit based on deep self-coding network in the GhatGDP era [3] and so on. These research results highly confirm the promoting role of machine learning methods in the field of financial data analysis, and further stimulate people's enthusiasm to use machine learning methods to improve financial data analysis. In this paper, by studying the application of machine learning methods based on DBN and RL in financial data, the advantages of deep belief neural network and reinforcement learning are combined to provide a more efficient method for enterprise financial data analysis.
Optimization of Multibeam Survey Measurement Based on Greedy Algorithm
Authors: Zhang Ziye
Published: June 2024

The effectiveness of multibeam bathymetric technology is widely recognized in marine depth measurements, especially in areas with complex and variable seafloor topography. This study aims to design a multibeam bathymetric survey plan for a specific maritime region, with the objectives of minimizing the total survey line length, ensuring comprehensive coverage of the target area, controlling the overlap between adjacent survey lines, and fully considering variations in seafloor topography. An optimization model was developed to determine the optimal route for comprehensive seafloor depth measurements within the specified maritime area.The model initially considers the influence of seafloor slope, establishing a single optimization objective model with the goal of minimizing the total survey line length. The decision variables primarily include the spacing between adjacent survey lines. The objective function of the model aims to reduce the number of survey lines, thereby achieving the minimization of the total survey line length. Constraints of the model encompass limitations on coverage range, calculations of coverage width, and relationships between survey lines. The model is solved using a greedy algorithm-based optimization approach, iteratively updating the positions of survey lines while determining the spacing based on the relationship between depth and coverage width. Ultimately, a layout of survey lines with the shortest total length, totaling 64 nautical miles with a configuration of 32 survey lines, is obtained for the assumed maritime area. Multibeam bathymetric technology holds broad prospects in the field of marine measurements, particularly in areas characterized by complex and variable seafloor topography. This study, by designing a multibeam bathymetric survey plan for a specific maritime region, not only contributes to improving measurement efficiency and accuracy but also reduces measurement costs and resource consumption. The outcomes of this research have significant practical implications for marine resource development, seafloor engineering construction, environmental protection, providing professionals in related fields with an effective measurement method and optimization strategy.
Research on Influence of Network Effect on Service Demand for Social Media Products and Optimization Strategy
Authors: Lu Xinchen
Published: June 2024

In the digital era, social media platforms have emerged as fundamental tools for communication, information dissemination, and influence on consumer behavior, marking a significant shift in the landscape of both personal and professional interactions. The critical role of network effects, where the value of a service amplifies as its user base expands, is central to understanding this transformation. This paper delves into the impact of network effects on service demand within social media, identifying both the opportunities for growth and the challenges, such as platform saturation and misinformation. Through a structured exploration that includes case studies of leading platforms like Facebook, this research highlights the strategies employed to harness positive network effects while mitigating negative ones. The investigation reveals the dual nature of network effects and how they contribute to the rapid proliferation of social media, alongside presenting obstacles such as user retention and the quality of user-generated content. It further examines how platforms leverage data analytics, enhance user experience, and innovate to sustain growth and engage users effectively. The findings suggest that while network effects can drive platform expansion and engagement, they necessitate nuanced strategies to manage potential downsides.
Research on the Dilemma and Optimization Strategy of Rural Digital Governance under the Urban-Rural Co-Governance Pattern
Authors: Li Lixian , Nie Yu , Huang Xuehua , He Tingting
Published: June 2024

Under the concept of "co-construction, joint governance and sharing", digital technology has become an important driving force for the co-governance of urban and rural communities, which is of great significance to improve the modernization level of governance. At the same time, the digital transformation of rural governance can promote the digital transformation of rural agriculture, ecology, governance, culture, life style and other aspects, and promote the process of agricultural and rural modernization. On the basis of practical investigation, this topic uses AHP-SWOT analysis to comprehensively analyze the influencing factors and strategic choices of rural digital governance, and discusses the application scenarios of digital governance combined with factor analysis, and puts forward an optimization strategy for how to effectively promote rural digital governance at the present stage. This paper aims to explore how digital technology can promote the improvement of rural governance level, and provide practical inspiration for the government's governance decisions in rural life and production.
Sensor-Based Target Positioning Technologies in Industrial Automation
Authors: Gao Haopeng
Published: June 2024

This thesis examines the critical role of sensor-based target positioning technologies in industrial automation within the context of Industry 4.0, highlighting their importance for operational efficiency and adaptability. Emphasizing the significance of sensors in automation, the study explores the principles, capabilities, and constraints of RFID, LiDAR, and WSN technologies, each pivotal for accurate target localization. It presents a comparative analysis of these technologies, focusing on their applications across various industrial scenarios, such as production lines, warehousing, and logistics, and evaluates their effectiveness through a series of experiments. The experimental analysis reveals RFID's precision improvement within 10 centimeters and LiDAR's enhanced accuracy with light information integration. It also shows that WSN's precision is contingent on noise levels, with the distance-corrected iterative localization algorithm significantly reducing localization error. The study concludes that while advancements have been made, future research should address the limitations observed in harsh industrial environments, with an emphasis on machine learning and AI integration for data processing to navigate environmental challenges.
Sino-US Economic and Geopolitical Competition under the American Rebalance to Asia strategy
Authors: Chai Haochen
Published: June 2024

Since entering 21 centuries,the Asian region has become the focus of international attention.The Trans-Pacific Partnership (TTP) and the“One Belt, One Road”(OBOR) strategy are major strategic initiatives launched by the United States and China in response to the American rebalance to Asia strategy.The economic and geopolitical competition between China and the United States in the Asia-Pacific region will continue and intensify for quite some time.What is important is that both sides should look at each other’s differences with an open and tolerant mindset and seek a win-win situation through dialog and cooperation.
One-Step Synthesis of Nanoporous Alumina by an Intelligent Gel Template
Authors: Wang Ling
Published: June 2024

In this research, an novel green method for one-step synthesis of nanoporous alumina based on an intelligent recyclable template, which has sensitive response to temperature and can be easily removed from product and recycled to reuse by its phase changes with temperature, was applied. Using NaAlO2 as the aluminum source and temperature-sensitive intelligent gel methylcellulose (MC) as the template, the nanoporous alumina products with large specific surface area, narrow pore size distribution and worm-like pore channels were successfully prepared. And the influence of reaction time, template concentration and NaAlO2 solution concentration on the preparation of nanoporous alumina was studied.
Efficiency Analysis and Structural Optimization of a Heliostat Mirror Field in a Tower-Type Photovoltaic Power Plant
Authors: Song Hongwei , Chen Rende , Zhou Xiaozhou
Published: June 2024

With the growing global demand for sustainable energy, tower-type photovoltaic power plants have received a lot of attention as an efficient way to utilize solar energy. In this thesis, a more perfect model of the heliostat mirror field was established from multiple angles and using various methods. Using Cooper's solar declination formula, the precise solar position was obtained; with the help of the HFLCAL model, the collector truncation efficiency was obtained, and the heliostat field optical efficiency model was obtained, combining it with the genetic algorithm, the arrangement of heliostat mirrors was optimized, and the heliostat field model was simplified, which greatly improves the computational efficiency. Finally, the optimal annual average thermal power output per unit mirror surface area is obtained as follows: the location coordinates of the absorption tower are: (0, -101.5211), the number of heliostat mirrors is: 3653, the interval of heliostat mirror width is [3.5224, 4.7914], the interval of heliostat mirror height is [3.5008, 4.5000], and the interval of heliostat mirror height are [2.2511, 5.9986].
Examination of the Effect of Improving the Quality of International Students' Education
Authors: Bai Yang
Published: June 2024

The status quo of international students' education and the assessment system of education quality improvement are discussed in One Example University, and the evaluation indexes of international students' education quality are constructed from the aspects of cultivation program, teaching service, teaching achievement, learning resources, etc., to provide a reference for the improvement of international students' teaching quality in universities.
A Comparative Study on Jorion’s Estimator in Contemporary Market
Authors: Leng Xinzhu
Published: June 2024

In knowledge of the prominence of Markowitz model in modern portfolio theory, and the following controversy on the appropriate choices of input parameters, this study examines the practical performance of Jorion's estimator as one of the estimation strategies to reduce the estimation error inherent in traditional input parameter. A comprehensive dataset of real stock market returns, encompassing 7 assets and 2 industries, is employed. Jorion's estimator entails the adjustment of the mean of sample return towards the mean of minimum variance portfolio. The results are then integrated into the optimization phase of Markowitz model. To evaluate the effectiveness of Jorion’s estimator, realized returns and return volatility of Markowitz model adapted by Jorion’s estimator are compared against the traditional model. The findings provide insights into the practicability of Jorion's estimator for portfolio management in contemporary capital market. After comparisons, all 3 measures of realized returns from Jorion’s estimator outperforms the counterpart from traditional parameter. This study affirms that the classic sample mean is inadequate as an estimator for future performance, and sophisticated techniques, such as Jorion’s estimator should be employed in real-world investment strategies.
Comparative Analysis of Transformer Integration in U-net Networks for Enhanced Medical Image Segmentation
Authors: Hao Zixin
Published: June 2024

Transformer is popular in Natural Language Processing (NLP) and is a cornerstone of large models. Transformer has been used by researchers to address the limitations of Convolutional Neural Networks (CNNs) in medical picture segmentation models. Through an extensive literature review and case studies, this paper comparatively analyzes the performance of different models in this field, summarizes different methods of integrating transformers into U-net, and points out existing gaps and challenges. Research has found that the Transformer model can significantly improve the accuracy and efficiency of medical image analysis. The paper discusses the advantages, disadvantages, innovations, performance, and complexity of various models in detail, and shows how to enhance performance by integrating the Transformer structure into the U-net network. In particular, the paper also analyzes the advantages of Transformers that are most suitable for integration into the encoder part and highlights the balance that needs to be made between improving performance and computational cost. The conclusion shows that although there is no perfect model, optimal performance and efficiency can be achieved by selecting different combinations of Transformer and U-net according to the actual situation. It can be seen from the networks’ performance that the mixed use of a U-shaped convolutional network and Transformer module has good development prospects and high research significance.
Optimization of energy storage material properties in renewable energy systems based on big data analysis
Authors: Wang Lei , Zhang Cheng , Yao Xuanren , Wu Yuanjian , Gong Jinlong , Zhou Qijun
Published: June 2024

In recent years, the overall scale of distributed renewable energy projects has been rising, which makes the distributed energy development symbiosis system even larger. The number of sectors involved in the system has gradually increased, while the connection between the subsystems has become increasingly close. At the same time, the optimization of energy storage materials in the symbiotic system of distributed renewable energy projects under the integration of resources and demand has broadened the scope of traditional energy market technologies. Therefore, this paper takes the distributed renewable energy symbiosis system as the research object, and analyzes in depth the research of optimizing the performance of energy storage materials in the distributed renewable energy system to provide decision support for the regional distributed renewable energy industry planning.
The Progress and Development Prospects of Targeted Therapy for Pancreatic Carcinoma
Authors: Zheng Jingqi
Published: June 2024

Pancreatic cancer is a malignant tumor with extremely high malignancy and poor prognosis. At present, targeted therapy is the latest progress in the treatment of pancreatic cancer; The development of receptors for drugs targeting pancreatic cancer has also made great progress, and specific drugs targeting some receptors have also been approved for marketing. However, the clinical effect of targeted therapy for pancreatic cancer has not reached a stable state, and the side effects of some targeted drugs have not been effectively solved. This article reviews the research on therapeutic targets for pancreatic cancer such as TROP2, PI3K and CIP2A in recent years and the development of Claudin 18.2, a new target. It is found that the research on Trop2 and CAPA is relatively complete and has achieved effective results. Both of them are effective targets for targeted treatment of pancreatic cancer. However, the research on PI3K and Claudin 18.2 is less, and their effects and mechanisms are not effectively supported by theory. In addition, this article summarized the research on EGFR, Her, CAR-T, GRPR and other receptors related to targeted treatment of pancreatic cancer and their related drugs and therapies. It was found that the research on EGFR, Her and CAR-T had achieved significant research results in the clinical stage, and their related drugs and therapies were approved for marketing; However, there are still deficiencies in the research on the influencing factors, stable clinical efficacy, and side effects of drugs targeting the aforementioned receptors. Future research can focus on overcoming tumor microenvironment, avoiding side effects of targeted drugs for pancreatic cancer, and new targets for targeted treatment of pancreatic cancer.
Fordin jälkeen
Authors: Penttinen Miro
Published: June 2024

Runokokoelma tulkitsee työtä ja kulutusta yhteiskunnassa, jossa halu pursuu ja arvo liukastelee. Se on halun ja spekulaation talous, virran ja vesityksen tuottava kohtaaminen subjektissa, moraalissa ja tuotteessa. Vaikutus on huimaava.
Độ chính xác định vị đối tượng địa lý trong lòng đất bằng công nghệ Georadar.
Authors: Nguyễn Phi Sơn , Lê Viết Nam , Nguyễn Thanh Thủy
Published: June 2024

Radar xuyên đất (GPR/GeoRadar) đang được ứng dụng rộng rãi trên thế giới để phát hiện và thành lập bản đồ các đối tượng ngầm, gọi chung là đối tượng địa lý trong lòng đất. Tuy nhiên, Việt Nam chưa có quy định cụ thể về quy trình dò quét và thành lập bản đồ cho các đối tượng này. Bài báo giới thiệu cơ sở khoa học đề xuất độ chính xác mặt phẳng và độ sâu của đối tượng địa lý, dựa trên việc tổng hợp các tiêu chuẩn quốc tế, các quy định về ứng dụng GeoRadar trong dò tìm đối tượng ngầm của các quốc gia, kết quả nghiên cứu thực nghiệm và đặc tính kỹ thuật của thiết bị GeoRadar RIS Himod #4. Đây là nội dung quan trọng trong Tiêu chuẩn cơ sở "Khảo sát, đo đạc, thành lập bản đồ đối tượng địa lý trong lòng đất thuộc phạm vi tầng nông - Phương pháp GeoRadar" do Viện Khoa học Đo đạc và Bản đồ ban hành năm 2023, nhằm đảm bảo tính thống nhất và khoa học khi ứng dụng GPR trong các nhiệm vụ của Viện.
Im Keller. L’émergence de l’ontologie classique et de ses présupposés minimalistes
Authors: De Salies Fabrice
Published: June 2024

À l’instar d’un grand nombre de notions philosophiques, celle d’« ontologie » possède une histoire riche d’enseignements. Elle émerge en terre protestante au début du XVIIe siècle en vue de définir et d’élaborer un type de science affranchi de la « métaphysique » catholique afin de pouvoir traiter de l’être dans toute sa généralité. Ce faisant, elle détermine l’être comme intelligible, le réduisant ainsi à une simple figure du pensable, caractérisation que Wolff finira par justifier à l’aide du principe de raison suffisante. Les penseurs allemands s’étant depuis Kant et pour la plupart distingués par leur opposition d’avec cette ontologie, il convient d’esquisser les grands traits du sous-sol de cette pensée devenue pour nous classique.
E.T.A. Hoffmann ou le rêve à la limite. Perspectives frontalières sur la critique
Authors: Dumont Augustin
Published: June 2024

Cet article a pour objectif d’interroger certains aspects de l’œuvre du romantique allemand E.T.A. Hoffmann, afin de réfléchir la notion de critique, héritée de l’idéalisme et du romantisme d’Iéna. Le rêve, le sublime et le grotesque sont les vecteurs de cette réflexion.
Possibility of Self-Representation: the Assimilation of Paul de Man’s Theories in John Banville’s Shroud
Authors: Ghassemi Mehdi
Published: June 2024

Shroud de John Banville, publié en 2002, peut être lu comme un exemple de « métafiction historiographique ». Le roman fonde en effet son protagoniste, Axel Vander, sur la vie de Paul de Man, le théoricien littéraire, dont les écrits dans un journal pro-nazi ont été découvert à titre posthume par Ortwin de Graef. Ce récit prend la forme d'une confession autobiographique, tout en s'appuyant sur les théories de Paul de Man concernant la question de la référentialité et le problème d '(auto-) représentation. En outre, selon de Man, le discours de l'autobiographie implique un processus d’« auto-restauration » par lequel le sujet confère à lui-même un masque dans le but de cacher l'absence d’un moi authentique et cohérent. Cependant, un problème se pose lorsque la langue devient le support de cette représentation (DE MAN, 1979) : loin de refléter le « vrai » moi, la langue devient le moyen même de la fabrication de masques. En résulte un « malaise» d'indécidabilité pour le narrateur. L’objectif de cet article est d'analyser Shroud en le lisant avec le texte de de Man intitulé « L'autobiographie en tant que de-facement » et de montrer comment le langage vient se poser comme l'agent qui déstabilise le discours même qu’il vise à restaurer. Après avoir démontré comment l'autobiographie entraîne une crise de l’autorité et de la représentation pour le narrateur, nous tâcherons, cependant, de démontrer qu’Axel peut aparaître comme un « noyau irréductible », ce qui subsiste à ce que de Man appelle « a linguistic predicament » Je constaterai également que ce noyau est incarné par la voix en tant que dimension du réel lacanien.
Les contours métriques du comique chez les grammairiens latins
Authors: Conduché Cécile
Published: June 2024

La comédie républicaine, et en particulier les pièces de Térence, fait partie du canon littéraire de l'école tardo-antique. Cette situation devait logiquement conduire les métriciens latins à développer une analyse des vers des comédies. Dans cet article, nous avons voulu présenter les éléments de définition métrique du genre comique tels qu'ils apparaissent dans les traités latins de métrique et de grammaire. Les grammairiens transmettent pour la plupart la théorie d'un contraste de tempo entre vers comiques et tragiques, mais il reste peu de traces d'une analyse globale de la comédie sous son aspect métrique. Les grammairiens ont tendance à concentrer leur attention sur les vers du dialogue. À la fin du ve siècle, Priscien va au bout de cette logique en plaquant les schémas de la métrique ïambo-trochaïque sur tous les vers de comédie, y compris les parties lyriques.
Medicus histrio. La comédie du mauvais médecin dans le De Medicina de Celse (5.26.1C-D)
Authors: Gautherie Aurélien
Published: June 2024

Aulus Cornelius Celsus, encyclopédiste du Ier siècle ap. J.-C., est l’auteur du De Medicina (Sur la Médecine). S’inspirant notamment du Corpus hippocratique où la dimension théâtrale de l’art médical est déjà abordée, Celse adapte cet héritage grec à ses lecteurs romains par le biais d’une figure originale, celle du medicus histrio. Empruntant au vocabulaire du théâtre contemporain, Celse met en scène un contre-modèle du médecin idéal que ses lecteurs puissent facilement se représenter.
La belle et la brute. De l’influence des Comiques sur la présentation de la conjuration de Pison (Tacite, Annales XV, 51)
Authors: Benferhat Yasmina
Published: June 2024

Ce travail a pour objet la présentation tacitéenne d’un épisode important de la conjuration de Pison contre Néron en 65 quand l’affranchie Epicharis, proche du frère de Sénèque, tenta de rallier à la cause un navarque de Misène, Volusius Proculus, sans succès. Son but est de montrer comment Tacite s’est inspiré ici de la comédie latine : la première partie traite des aspects historiques de la conjuration en insistant sur tout ce que l’historien choisit de masquer afin de recréer une figure stylisée d’Epicharis sœur des courtisanes de comédie. La deuxième partie est une analyse du chapitre 51 du livre XV des Annales : nous avons essayé de montrer que Tacite parodie une scène de comédie avec une meretrix et un miles gloriosus. Enfin, la troisième partie est une recherche des modèles possibles : Plaute a bien des courtisanes et des soldats fanfarons dans ses pièces, mais c’est Térence qui est sans doute la source d’inspiration de Tacite, en ayant créé la figure de la bona meretrix, la courtisane courageuse et honnête qui agit pour une bonne cause.
La raillerie du peuple dans Les Vies des douze Césars de Suétone
Authors: Louis-Roux Nathalie
Published: June 2024

La raillerie, trait typiquement romain, est pratiquée aussi bien par le peuple que par les empereurs. Il s'agit d'une expression pleinement autonome qui n'est assimilable ni à la critique ni à la menace, même si elle peut les accompagner. C'est une expression essentiellement comique, qui, comme tout comique, trouve son origine dans l'excès. Mais ce comique est de valeur, et n'a rien à voir avec le rire facile que généreraient bouffonnerie ou grotesque. Exercice intellectuel élaboré, elle recourt volontiers aux jeux de mots, aux clins d'œil, aux apostrophes ciblées. Parfois une véritable chaîne se met en place, on n'arrive que par étapes au raillé, en passant par quelqu'un d'autre ou par des faits qui, apparemment, n'ont rien à voir. Lors des atellanes, le peuple excelle dans cet art qui adapte la fiction à une réalité.
Amores I, 8 : Quand le poète élégiaque écoute aux portes de la comédie latine...
Authors: Roussel Déborah
Published: June 2024

Dans l'élégie I, 8 des Amours, en adoptant la posture du jeune Philolachès de la Mostellaria de Plaute, Ovide ouvre une porte dans le recueil élégiaque, pour laisser entendre, l'espace de quelques vers, le discours comique. Il signale ainsi l'influence incontestable de la comédie et la présence de Thalie dans l'ensemble des Amours. Mais si Dipsas, « l'assoiffée », apparaît derrière l'un des battants de la porte, c'est que l'autre battant, duplice, cache incontestablement son double propercien, Acanthis, « l'épine ». L'élégie d'Ovide fait résonner en écho celle de Properce, avec laquelle elle joue constamment. Et tout en faisant croire qu'il est la victime du discours corrupteur de la maquerelle, Ovide lui prête, en réalité, sa voix, comme s'il lui soufflait son texte derrière la porte. Finalement, en réécrivant un discours typique de la comédie, cher aussi à ses prédécesseurs dans l'élégie, Ovide énonce ici la recette, l'incantation magique, le carmen qui rend possible la production du poème élégiaque.
Le référentiel personnel : instrument de médiation dans l’apprentissage des gestes professionnels
Authors: Amblard Denis
Published: June 2024

Dans la présente contribution, le référentiel personnel de l’agir professionnel d’usagers d’un dispositif de formation est considéré comme un instrument de médiation dans l’apprentissage de gestes professionnnels. Cette contribution met à profit une recherche en cours d’action associant un dispositif de recherche au dispositif de professionnalisation des formateurs des Maisons Familiales Rurales (MFR). Dans une démarche inductive, une investigation bibliographique et de terrain contribue à définir et à caractériser l’expression de référentiel personnel. L’objet ainsi élaboré est considéré comme un objet frontière servant de point de repère pour comprendre comment les usagers construisent et emploient leur référentiel. Des traces d’activités réflexives dans l’action pédagogique donnent lieu à des entretiens d’autoconfrontation simple mettant en évidence le statut, le rôle et les fonctions du référentiel personnel dans l’apprentissage de gestes d’ajustement.
Efficacité de l’activation comportementale dans le traitement de la dépression : quels processus psychologiques déficitaires sont améliorés au cours du traitement ?
Authors: Wagener Aurélie , Blairy Sylvie
Published: June 2024

La dépression est un trouble qui touche de très nombreux patients. Ainsi, il existe un réel besoin, pour les cliniciens, d’avoir à leur disposition des traitements psychologiques efficaces permettant de venir en aide à ces patients. L’activation comportementale, une approche psychothérapeutique structurée et brève, a montré son efficacité dans le cadre du traitement de la dépression. Elle poursuit deux objectifs principaux : (1) augmenter l’engagement dans des activités associées à un sentiment de plaisir et/ou de maîtrise ; (2) diminuer l’engagement dans des activités maintenant les affects négatifs ou en augmentant les risques. Bien que ce traitement semble efficace, aucune étude n’explique pourquoi et comment il fonctionne : quels sont les outils les plus efficaces ? Quels sont les processus psychologiques déficitaires et/ou biaisés de la dépression améliorés par ce traitement ?
The Random Forest algorithm for classifying stunting in toddlers based on anthropometric data
Authors: Zikri Aidil , Nazir Alwis , Sanjaya Suwanto , Haerani Elin , Afrianty Iis
Published: June 2024

Stunting is a growth and developmental disorder in children that often occurs during the first 1,000 days of life, from conception to the age of two. Factors such as inadequate nutritional intake, recurrent infections, and a less clean environment can contribute to stunting. In this case, use the random forest algorithm. The goal is to categorize the stunting case. The variables used are gender, age, birth weight, birth height, weight, height, and Exclusive Breastfeeding. With the number of datasets used reaching 6,500, the experiment was performed with a combination of parameters, namely n_estimators 100, 200, and 500. Max_features = 5, 7, 10, and 13. As well as min_samples_split and min_sample_leaf = 20, 50, and 100. Based on the specified set of hyperparameters, 108 test results were obtained. The highest accuracy is 0.9651, with precision = 0.9603, recall = 0.9718, and F1-score = 0.9660. With n_estimators formed = 100, max_depth = 13, min_samples_split = 20, and min_samples_leaf = 20.
ẢNH HƯỞNG CỦA NANOSILICA ĐẾN CƯỜNG ĐỘ LIÊN KẾT BỀ MẶT CỐT SỢI THÉP TRONG BÊ TÔNG CƯỜNG ĐỘ SIÊU CAO
Authors: Đặng Văn Phi  , Tăng Văn Lâm  , Lê Huy Việt  , Đàm Anh Tuấn  , Hồng Tiến Thắng  , Vũ Ngọc Trụ
Published: June 2024

Bài báo trình bày sự ảnh hưởng của hàm lượng nanosilica (NS) đến cường độ liên kết bề mặt của cốt sợi thép trong bê tông cường độ siêu cao (UHPC). Khi thay thế hàm lượng xi măng bằng hàm lượng NS tương ứng từ 0,5 đến 2,0% trong thành phần cấp phối của UHPC, cường độ liên kết bề mặt của cốt sợi thép trong UHPC được cải thiện đáng kể và đạt được giá trị lớn nhất khi sử dụng hàm lượng 1,0% NS. Cường độ liên kết cực đại (τpeak) và tương đương (τeq) của cốt sợi thép trong UHPC khi sử dụng hàm lượng 1,0% NS lần lượt là 13,63 MPa và 140,10 MPa. Khi được bổ sung thêm hàm lượng NS, cường độ liên kết của UHPC tăng lên là do NS đã làm tăng sự đặc chắc tại vùng chuyển tiếp xung quanh bề mặt cốt sợi thép và UHPC. Ngoài ra, khi sử dụng hàm lượng NS tăng từ 0,5 đến 1,0%, cường độ nén của UHPC có xu hướng tăng và đạt giá trị lớn nhất (201,51 ± 3,40 MPa) với hàm lượng 1,0% NS được sử dụng. Tuy nhiên, khi hàm lượng NS tăng từ 1,0 đến 2,0% cường độ nén của UHPC có xu hướng giảm. Hơn nữa, tính công tác của UHPC giảm khi bổ sung thêm NS trong thành phần cấp phối của UHPC. Độ chảy của các tổ hợp chứa các hàm lượng NS đều thấp hơn 235 mm, trong khi độ chảy của mẫu đối chứng là 245 mm.
Đo lường năng suất lao động trong xây dựng tại hiện trường bằng phương pháp lấy mẫu công việc
Authors: Nguyễn Đức Lợi
Published: June 2024

Năng suất lao động ngày càng cho thấy tầm quan trọng của nó, là một trong những yếu tố giữ vai trò quan trọng đối với sự phát triển, thể hiện năng lực của mỗi doanh nghiệp, mỗi ngành nghề và mỗi quốc gia. Bài viết giới thiệu việc sử dụng phương pháp lấy mẫu công việc để đo lường, dự báo năng suất lao động trong thi công xây dựng tại hiện trường. Phương pháp này dựa trên nguyên tắc thống kê để đánh giá tỷ lệ thời gian hữu ích nhằm tạo ra sản phẩm. Lấy mẫu công việc được dùng để đánh giá nhằm cải thiện tiến trình thực hiện công việc, từ đó gia tăng hiệu quả công việc. Nghiên cứu thực nghiệm được thực hiện tại một số dự án xây dựng nhà cao tầng đang được thi công tại thành phố Hải Phòng.
KHẢ NĂNG CHẾ TẠO BÊ TÔNG NHẸ VỚI CẤU TRÚC RỖNG TỔ ONG THAY ĐỔI TRÊN CƠ SỞ BỤI NHÔM PHẾ THẢI VÀ CHẤT TẠO BỌT EABASSOC
Authors: Vũ Ngọc Trụ
Published: June 2024

Bài báo này trình bày một số kết quả thực nghiệm về công nghệ chế tạo và tính chất của bê tông nhẹ với cấu trúc rỗng thay đổi trong điều kiện phòng thí nghiệm. Với việc sử dụng hỗn hợp chất điều khiển cấu trúc gồm chất tạo bọt EABASSOC, bụi nhôm phế thải và dung dịch NaOH 5,0 M đã thu được sản phẩm bê tông nhẹ chứa lỗ rỗng tổ ong thay đổi từ khu vực trung tâm đến khu vực ngoại vi. Bên cạnh đó, nghiên cứu đã sử dụng khuôn gỗ hình lập phương cạnh 150 mm với bốn thành khuôn được đục lỗ để loại bỏ thành phần pha lỏng và pha khí ra khỏi mẫu bê tông trong quá trình rắn chắc. Kết quả nghiên cứu cho thấy hoàn toàn có thể chế tạo được loại bê tông nhẹ với cấu trúc rỗng tế bào thay đổi có khối lượng thể tích khô trung bình 955 kg/m3; cường độ nén trung bình ở tuổi 28 ngày khoảng 14,73 MPa. Ảnh hưởng của cấu trúc rỗng thay đổi đến giá trị khối lượng thể tích và cường độ nén ở tuổi 28 ngày là khá rõ ràng. Ở khu vực bên ngoại vi, khối lượng thể tích trung bình đạt khoảng 1021 kg/m3 nhưng tại tâm viên mẫu, giá trị khối lượng thể tích chỉ còn 798 kg/m3. Đồng thời, cường độ nén trung bình ở tuổi 28 ngày của mẫu cũng giảm mạnh, ở các vị trí ngoại vi cường độ đạt 17,99 MPa, nhưng tại vị trí trung tâm của mẫu, cường độ nén chỉ còn 5,75 MPa. Bên cạnh đó, nghiên cứu này cũng đã so sánh tính chất của bê tông nhẹ với cấu trúc rỗng thay đổi với bê tông bọt sử dụng bột kim loại nhôm có cùng khối lượng thể tích ướt.
ALTIN FİYATLARI İLE BORSA İSTANBUL 100 ENDEKSİ ARASINDAKİ İLİŞKİ
Authors: Aslan Mesut
Published: June 2024

Kıymetli bir maden olan altın önemli bir yatırım aracı olduğundan yatırımcılar tarafından tercih edilmektedir. Borsa ile ilgilenen yatırımcılar için ise BIST 100 endeksinin gösterdiği değişimler önemli olmaktadır. Çünkü bu endeks Borsa İstanbul’da işlem hacmi bakımından en yüksek 100 hisse senedinin göstergesi olan bir endekstir ve Türkiye borsası için baz gösterge olarak kabul edilmektedir. Yerli ve yabancı yatırımcılar açısından önemli bir yere sahip olan borsanın bir ekonomik değişken olan altın ile nasıl bir etkileşim içerisinde olduğu da merak edilen bir konudur. Bu çalışmada Altın ile borsa endeksi arasındaki uzun dönemli ilişki ortaya konularak bu değişkenler arasında bir nedensellik ilişkisinin olup olmadığı belirlenmeye çalışılmıştır. Bu amaçla analizlerde Türkiye’deki BIST 100 fiyat endeksi ve altının gram fiyatı kullanılmıştır. Analiz dönemi olarak Şubat 2002-Aralık 2022 dönemi arasındaki aylık veriler kullanılmıştır. Yapılan Granger nedensellik testi sonucunda değişkenlerin eş bütünleşik olduğu ve aralarında uzun dönemli bir ilişki olduğu belirlenmiştir. Ayrıca Granger nedensellik analizinden elde edilen sonuca göre değişkenlerin çift yönlü bir nedensellik ilişkisine sahip olduğu belirlenmiştir.
EVIDÊNCIAS DE VALIDADE E CONFIABILIDADE PARA USO DA READINESS FOR INTERPROFESSIONAL LEARNING SCALE (RIPLS-40) EM ESTUDANTES DA BAHIA
Authors: Meireles Everson , Silva Lais Souza da , Santana Luciana Alaíde Alves , Toassi Ramona Fernanda Ceriotti , Silva Jaqueline Alcântara Marcelino da , Peduzzi Marina
Published: June 2024

Introdução: Readiness for Interprofessional Learning Scale (RIPLS) é uma escala psicométrica de autorrelato que se propõe a avaliar a disponibilidade de estudantes e profissionais de saúde para o aprendizado compartilhado e colaborativo entre profissões de diferentes áreas. Desde que foi proposta originalmente na Inglaterra, em 1999, a RIPLS tem sido utilizada em diferentes países, incluindo o Brasil, num processo contínuo de aprimoramento e de demonstração de evidências de validade e confiabilidade para uso e interpretação dos resultados obtidos com sua utilização. Objetivo: Avaliar evidências de validade e confiabilidade para a RIPLS-40 em uma amostra de estudantes de cursos de graduação em saúde de uma universidade pública localizada no interior do estado da Bahia. Metodologia: Participaram 205 estudantes de cinco cursos da área da saúde (Psicologia, Nutrição, Enfermagem, Medicina e Bacharelado Interdisciplinar em Saúde), com modelos de formação distintos: formação linear e em ciclos. Os dados foram coletados em sala de aula. Foram realizadas análises fatoriais/modelagens exploratórias de equações estruturais (ESEM) para avaliar a dimensionalidade do instrumento, bem como análises de confiabilidade e de comparação de grupos ao nível de p ≤ 0,05. Resultados: Os resultados das análises psicométricas indicaram ajuste satisfatório do modelo fatorial de três fatores: “Trabalho em equipe e colaboração” (CC = 0,89); “Identidade profissional” (C = 0,67); “Atenção centrada no paciente” (CC = 0,92). A RIPLS-40 foi capaz de diferenciar grupos e identificar atividades acadêmicas potentes para a promoção da interprofissionalidade. Conclusão: Foram demonstradas evidências de validade e de confiabilidade da RIPLS-40, sobretudo para os fatores “Trabalho em equipe e colaboração” e “Atenção centrada no paciente”. Estudos complementares são recomendados para o uso da escala RIPLS-40, em particular para o fator “Identidade profissional”, que vem apresentando fragilidade na validação nos contextos brasileiros, bem como em outros países.
TRENDS IN THE DIGITALIZATION OF THE CHEMICAL INDUSTRY IN RUSSIA AND ABROAD
Authors: Dayneko Denis
Published: June 2024

Modern challenges of economic development have led to the digitalization of the Russian chemical industry within the framework of the international concept "Industry 4.0". Among the key emerging trends in the digitalization of the chemical industry, the following are highlighted and discussed: big data and advanced analytics, the Internet of Things, simulation and digital twins, blockchain technology, specialized software, augmented and virtual reality, cloud computing, artificial intelligence and machine learning, cybersecurity and data privacy, mobile applications. Despite the fact that the problem of assessing and measuring the level of digitalization still exists, especially in the chemical industry, a number of indices have been named to assess digitalization. Among them is the I-DESI index, which is proposed to be used internationally in the future. Modern chemical enterprises both in Russia and in other countries use digital technologies because they increase efficiency, accelerate innovation, increase safety and create new business models in an increasingly competitive environment. Various leading chemical companies pay special attention to investments in the digitalization of their production, as this contributes to the sustainable development of their business.
Uitlegging en aanvulling van uiterste wilsbeschikkingen
Authors: Boissevain C.J.L.
Published: June 2024

Uitlegging en aanvulling van uiterste wilsbeschikkingen

Recent bevestigde de Hoge Raad dat erfstellingen zo kunnen worden uitgelegd dat deze erfstellingen niet meer ‘gelden’ op grond van gewijzigde omstandigheden. Het gevolg van het niet meer ‘gelden’ van een erfstelling is dat wordt teruggevallen op het versterferfrecht. Het terugvallen op het versterferfrecht levert echter niet altijd het (ogenschijnlijk) gewenste resultaat op. Kunnen uiterste wilsbeschikkingen naast niet geldend worden verklaard, echter ook worden ‘aangevuld’? In het kader van deze vraag wordt in deze bijdrage stilgestaan bij de artikelen 4:47 en 4:46 BW, waarna de vraag of uiterste wilsbeschikkingen ‘aanvullend’ kunnen worden uitgelegd centraal staat.
Dissertatie ‘Onwaardigheid’: enkele belangrijke bevindingen voor de erfrechtpraktijk
Authors: de Vries M.
Published: June 2024

Dissertatie ‘Onwaardigheid’: enkele belangrijke bevindingen voor de erfrechtpraktijk

In deze bijdrage bespreekt de auteur enkele belangrijke bevindingen uit haar proefschrift ‘Onwaardigheid’. De casus van Yvon K is in het proefschrift niet besproken, omdat de civiele rechter daarover (nog) niet heeft geoordeeld. Aan de hand van de bevindingen uit haar dissertatie gaat zij in dit artikel op deze zaak in. Verder besteedt zij aandacht aan het voorstel om artikel 4:3 BW te wijzigen in een gedeeltelijk open norm. Tevens gaat zij in op de (on)mogelijkheden als het gaat om het intrekken van de vergeving en gedeeltelijke vergeving.
Artificial Intelligence in the Educational Context: Value and Challenges
Authors: Dragojević Tamara N. , Letić Lungulov Milena
Published: June 2024

Education and educational institutions have undergone many changes in recent years, mainly due to the development of new technologies. The findings of relevant research indicate that the implementation of artificial intelligence into the educational process affects the improvement of students' achievement. The application of artificial intelligence in education has contributed to the development of teaching efficiency through personalized approaches to learning, providing unique experiences for each student. The paper defines artificial intelligence in the educational context, as well as its elements, along with presenting the significant research results and highlighting the advantages and disadvantages of using artificial intelligence in education. The aim of the paper is to shed light on the importance of this phenomenon and its effect on educational practice. Despite the indisputable benefits of artificial intelligence, it is important to point out that there are also potential challenges that we need to perceive and focus on overcoming.
Comparison of Global Competencies in General and Vocational Education
Authors: Štremfel Urška , Šterman Ivančič Klaudija
Published: June 2024

The article deals with global competencies, understood in academic and policy discussions as a set of knowledge, skills, attitudes and values crucial for successful personal and professional life in a globalized world. It examines the PISA 2018 results, which show that students in Slovenia self-assessed their global competencies below the OECD average. It addresses the scientifically relevant questions of whether, how and why students in Slovenia in general and vocational upper-secondary programmes (do not) report the same level of global competencies. The results show that students in vocational education programmes in comparison to students in general education programmes report significantly lower global competencies but significantly higher learning opportunities on global issues at school. The results, which show that in Slovenia students with lower socioeconomic status are mainly involved in vocational education programmes and that opportunities for acquiring global competencies in school are not significantly related to the self-reported global competencies (awareness of global issues), question the compensating role of school in the acquisition of global competencies by students.
Assessment of Early Childhood Teachers' Competencies for Care and Education of Toddlers
Authors: Glišić Tanja , Šindić Aleksandra , Lepičnik Vodopivec Jurka
Published: June 2024

Contemporary trends in the education and care of toddlers shed light on the specific competencies of early childhood teachers. The aim of this empirical qualitative study with elements of a comparative approach is to investigate, look at and understand the perspective of early childhood teachers about their own competencies for working in toddler groups in kindergartens in Bosnia and Herzegovina and in the Republic of Slovenia. We collected the data needed for the research in 2022 from 91 respondents using a self-created structured online interview in written form. Through the thematic analysis of the content of respondents' answers and the theoretical setting of the concept of early childhood teachers' competencies, nine categories of difficulties and six categories of advantages related to their competencies were distinguished. The findings of this study point to the fact that early childhood teachers for toddlers do not assess their own competencies as optimally developed.
Discussões entre estudantes durante a resolução de questões de física e confiança na resposta escolhida
Authors: Paula Helder F. , Simam Salema Cecilia
Published: June 2024

Neste trabalho nós apresentamos os resultados de uma pesquisa na qual nós investigamos a utilização de um método de ensino e aprendizagem conhecido como Peer Instruction (PI). O contexto da pesquisa é um curso de introdução à Física oferecido em uma escola de ensino profissionalizante de nível médio. O PI é um método no qual os estudantes são estimulados a explicar sua compreensão dos conteúdos aos seus colegas e podem ser confrontados com a compreensão de seus pares. Nossa questão de pesquisa era: as discussões entre estudantes aumentam o número de estudantes que escolhem a resposta certa e afetam o nível de confiança desses sujeitos em suas respostas? Os dados que obtivemos mostram um aumento bastante expressivo no número de respostas certas e um efeito muito significativo das discussões entre pares sobre a confiança dos estudantes em suas respostas.
Analise da presença do genótipo A2 em um rebanho bovino oriundo do oeste do Paraná
Authors: Goulart Erick João , Costa Caroline Pereira da
Published: June 2024

O leite é considerado um alimento essencial e completo para todas faixas etárias, no qual contempla uma gama de nutrientes que incluem proteínas, vitaminas e sais minerais, importantes e essências para o desenvolvimento e manutenção do organismo humano. No Brasil, a produção leiteira é significativa, e coloca o país como  terceiro maior produtor mundial, representado por cerca de 1 milhão de propriedades de pequeno e médio porte que produzem em média 34 bilhões de litros anualmente. O mercado de lácteos é desafiador, sofrendo pressão para se reinventar devido a demanda dos consumidores que estão sempre em busca de produtos saudáveis,  benéficos e seguros. Entre as “inovações” para atender as exigências está o leite A2A2, que se diferencia dos demais pela ausência β-caseína A1, que está associada a problemas de saúde como alergias e desconfortos gastrointestinais. Em contrapartida, a β-caseína A2 sob efeito das enzimas digestórias liberam BCM-9 na qual não apresenta impactos negativos, isso a torna uma opção preferível para indivíduos sensíveis a β-caseína A1. O presente estudo visa fornecer informações sobre o genótipo A2A2, através de uma revisão bibliográfica e objetiva analisar o rebanho de uma propriedade no oeste do Paraná. Foram testadas vacas de diferentes raças e cruzamentos, afim de identificar as fêmeas geneticamente competentes para a produção de leite A2A2. Após as análises, 23,33% desses animais foram diagnosticados como portadores do genótipo A2A2. O conhecimento à cerca da genética do rebanho possibilita a certificação da propriedade e a comercialização do leite A2A2, além de permitir também a possível disseminação desse genótipo, através da reprodução assistida.