bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Optimization of Traffic Management in Smart Tourism Cities for Sustainable Development
Authors: Liu Min
Published: October 2024

In order to accelerate the efficiency of urban traffic operation in tourism and maximize the efficiency of urban traffic operation. This paper conducts systematic research on urban traffic conditions and proposes the construction of an intelligent urban traffic management system. First of all, the system structure is designed from the whole, and the system is divided into the information collection stage, the information processing stage, and the information release stage to clarify the functions that the system needs to realize. The design of the system includes queries for road conditions, bus transfer, walking navigation, and background management of each functional module. By building a good system development environment, system functions can be realized in code. Visitor satisfaction was evaluated using the fuzzy comprehensive evaluation method, and simulation experiments were carried out to evaluate the system’s optimization effect. The satisfaction of tourists in terms of convenience and comfort is improved compared with that before the use of the system. After the implementation of the intelligent traffic management system, the delay time of the intersection with the most complex road conditions in peak hour E is reduced by 19.8 s. The delay time in the peak hour is reduced by 4 s. It shows that the system improves the satisfaction of tourists in terms of convenience and comfort reduces the possibility of congestion for the tourists and the residents to travel, and improves the utilization rate of the road. The utilization rate of the road.
Research on the application of BP neural network model in the construction of performance evaluation index system
Authors: Xie Yushan , Luo Miaohua , Xie Peifeng , Liu Xiaolin
Published: October 2024

BP neural network is able to model and predict complex nonlinear relationships by learning and adjusting weight parameters, which shows great potential in performance evaluation. After optimizing the BP neural network model by using the particle swarm algorithm, the article proposes a new model for performance evaluation using the BP neural network as the basic model and conducts an empirical study with data from 10 enterprises. The results of the study show that in the implicit layer node trial-and-error method experiments, the overall error of the model shrinks with the increase in the number of neurons. When the number of neurons is 9, the “V-MSE” is the smallest among all the hidden layers with the value of 0.00051, and the value of R2 is 0.9631, which shows that the model has a good convergence and fitting effect.
An in-depth analysis and prediction study of consumer buying behavior for digital marketing
Authors: Ma Xiaoyan , Wang Peng
Published: October 2024

With the rapid development of the economy, the influence of digital marketing on consumer buying behavior is becoming more and more important. This paper first introduces the consumer purchase behavior regression model (SICAS) for digital marketing. Secondly, a locally weighted linear regression model based on SGD is constructed using nonparametric linear regression, local weighting, and stochastic gradient descent algorithms. This model is used to regression analyze the factors affecting consumer purchase behavior and identify the important factors that affect consumer purchase decisions. Finally, the insights of a digital marketing approach to enhance consumer buying behavior are given. People who buy goods offline account for 30.7%, while the remaining 69.3% choose online shopping. With the development of the digital market economy, online purchases will become mainstream. The reliability coefficient is in the range of 0.851-0.949, the KMO is 0.924, the Bartlett value is 759.766, and the significance is P < 0.05. The variables’ high reliability and correlation make them suitable for factor analysis. The coefficients between the factors and consumer purchase decisions were 0.774, 0.805, 0.832, 0.332, and 0.894 (P < 0.01). The model R2 was 0.868 and F = 225.968 (p<0.05), indicating that the model is valid. Except for gender, there is a significant positive correlation (p<0.05) between all variables and consumer purchase decisions. Obviously, selecting appropriate digital marketing strategies is crucial to understanding consumer purchasing behavior.
Effectiveness of Mental Health Services for Improving Minors’ Behavior in Community Corrections Using Online Platforms
Authors: Shi Mengyi
Published: October 2024

The use of a network platform for the online correction of minors helps to optimize the correction effect. In this paper, we build a network platform for minor community correction, employ TAN Bayes to measure the corrective mental state, and utilize support vector machines to extract corrective content and identify relationships between it after text preprocessing. Next, the feature values are obtained by reducing the number of dimensions using probability matrix decomposition. The gradient descent method is then used to optimize the matrix. The feature matrix is then created, and the improved PMF is added to the ConvMF model. Finally, the Gray Wolf algorithm is used to improve the corrective content recommendation. After the platform construction was completed, the effect of applying this paper’s platform to two corrected minors was analyzed, and it was found that in the group of minors’ community correctional subjects, the correctional content recommended by the three different types of this paper’s platforms would all have different impacts in different dimensions compared to the whole. Before beginning corrective action using this article’s online platform, Case A’s evaluation on the 10 questions averaged 93.41 points, indicating a poor corrective psychological state and a high risk of mental health. After six months of online correction on this paper’s online platform, the psychological state improved significantly, with an average of 48.3 points on the posttest and a reduction of more than 40 points on each topic item. Compared to before the start of correction, the psychological risk has significantly decreased. Case B scored an average of 93.92 points on the 10-topic item pre-test, indicating an unacceptable mental health status that necessitates immediate intervention. After six months of online correction, On this paper’s online platform, the average posttest score was 47.69, with an average decrease of 46.23 points for each item, and significant results were achieved. This paper provides useful exploration for optimizing the method of community correction for minors and improving its effectiveness for minors.
Research on personalized recommendation system for social media marketing content in big data environment
Authors: Zhang Shitao , Zhang Ning , Chu-ke Chun , Kim Hyunjoo
Published: October 2024

A personalized recommendation system is an effective and consistent marketing method that caters to consumer demand for goods. It solves the problem of consumer shopping choices on e-commerce websites and is currently a hot spot in the field of network information services. In this paper, from the perspective of the user’s shopping process, we summarize the four factors that can maximally reflect the consumer’s interest and preference, i.e., product browsing, collection, adding to cart, and purchasing behavior. To achieve static user interest weights, we quantify each index factor and set the corresponding rules. Considering the change in user interest, the decaying interest value over time is designed to compensate for the deficiencies of static system recommendations. We use implicit user feedback data to identify content that truly interests users and then construct a personalized recommendation algorithm for social media marketing content using multi-source data. The test results show that UIPR has an MRR value of more than 0.8 and an NDCG value of more than 0.55 in both the MovieLens and Taobao datasets, compared to the baseline model’s best value. This proves that UIPR consistently performs better and makes better recommendations.
Innovation of Student Quality Evaluation Model in Vocational Education under Cloud Computing Environment
Authors: Chen Sheng
Published: October 2024

This paper takes cloud computing technology as the core, constructs a student quality evaluation model, collects and analyzes students’ learning data through cloud computing technology, proposes the direction of optimization and reform of the educational quality evaluation system, and establishes a comprehensive quality evaluation management system for students. Combining AHP and entropy weight methods, the subjective and objective weights of each index are calculated, and the comprehensive weights are determined through game theory. Based on the evaluation method of students’ comprehensive quality, the cloud model is established, the normal cloud digital features are calculated, and the mapping of qualitative concepts to quantitative representations is realized through the forward cloud generator, which completes the construction of the evaluation index system of students’ comprehensive quality. The evaluation cloud model is obtained by using the digital features calculation, and the cloud is located between levels 8 and 9 because E
x = 8.5265, which has a closer fit with level 8, indicating that the comprehensive quality of the student belongs to the good upper level. In the comparison of the innovation of the student quality evaluation model, the comprehensive theoretical quality of the students in the experimental group is 8.215 points, and the P value is 0, significantly higher than that of the control group students, and the model innovation effect is remarkable.
The Impact of Leadership, Communication, and Teamwork Practices on Employee Trust in the Workplace
Authors: Eva Tamanna Parvin , Afroze Rumana , Sarker Md Atiqur Rahman
Published: October 2024

Soft skill practices play an extensive role in creating sustainable and trustworthy relationships between employees and employers in the service sector. Organizational success largely depends on attracting and retaining a talented workforce for which soft skill practices are essential. The banking sector in Bangladesh emphasizes practicing leadership, communication, and teamwork as the most prevalent soft skills for gaining employees’ trust and enhancing the efficient performance of the employees. This study aims to identify the impact of managers' practising these three pivotal soft skills on attaining employees’ trust in the workplace. This study has been conducted by administering a structured questionnaire survey using a convenient sample of 104 employees from different private commercial banks in Bangladesh. Collected data were examined by using Pearson’s correlation and multiple regression analysis to test the hypotheses. The results of the analysis reveal that practising leadership, communication, and teamwork skills create a significant and positive impact on employee trust in the workplace. This paper noticeably contributes by creating awareness among bank managers regarding the selected three skills practices to create employee trust in the workplace, which is considered to be bridging the gap of current managerial practices in the private bank organization of Bangladesh. The findings of this study help practitioners realize the intensive utilization of leadership, communication, and teamwork skills to gain greater employee trust in the workplace.
Applications of Lidar Data Exploitation for Displacement Measurements and Change Detection
Authors: Glonţ Cristiana , Balotă Octavian Laurențiu , Balasz Csaba
Published: October 2024

The denser the Lidar data, the more faithfully it models the terrain. This property of dense Lidar data allows a detection of changes but also their quantification at a level of precision that can highlight even displacements of objects in all three spatial directions. The point cloud has different densities and accuracies depending on the platform on which the scanning system is installed (manned aircraft, drones or ground stations). Density and precision parameters drive different approaches in change detection algorithms. For completing these tasks, two independent applications were developed to highlight both major landscape changes and smaller changes such as displacement of objects, construction settlements, landslides.
Monte Carlo dosimetry for BEBIG Cobalt-60 brachytherapy source with gynecological applicator in the presence of inhomogeneities
Authors: Moradi Farhad , Sani Siti Fairus Abdul , Mahyuddin Azman , Ung Ngie Min , Bradley David Andrew , Almugren Kholoud , Rashid Hairul Azhar Abdul
Published: October 2024

Introduction: High-dose-rate (HDR) 60Co brachytherapy necessitates accurate dose calculations to minimize normal tissue toxicity and late malignancy risks. Conventionally, the American Association of Physicists in Medicine (AAPM) Task Group 43 (TG-43) formalism, utilizing table-based dose superposition, has been employed for dose calculations, overlooking tissue inhomogeneity effects.

Material and methods: This study focuses on characterizing the high-dose-rate BEBIG 60Co brachytherapy source, in combination with a gynecological applicator, using Monte Carlo simulations. The investigation is based on the model of the modified BEBIG 60Co source (Co0.A86) implemented at the University of Malaya Medical Center. Dosimetric properties are evaluated according to AAPM TG-43 formalism, with validation against existing published data.

Results: Our investigation presents comprehensive MC dosimetric properties of the high-dose-rate BEBIG 60Co brachytherapy source, highlighting its accuracy in dose calculations compared to established data. The study also examined the impact of the applicator on depth dose calculations within a Krieger phantom and explored the influence of various tissue inhomogeneities on the depth dose.

Conclusions: Our findings revealed that the applicator had a relatively minimal effect on the delivered dose, with only marginal differences observed. Furthermore, we investigated the depth doses along the central axis of the applicator, within a segment characterized by various tissue inhomogeneities where dose differences of up to 12% were observed, with the lowest and highest doses recorded within bone and adipose tissues, respectively. This study underscores the valuable role of MC simulations in estimating doses at locations where physical measurements are unfeasible, such as the intra-uterine tube surface, as well as in scenarios featuring tissue inhomogeneities.
Inter-observer variation in gross tumour volume delineation of oesophageal cancer on MR, CT and PET/CT
Authors: Secerov-Ermenc Ajra , Peterlin Primoz , Anderluh Franc , But-Hadzic Jasna , Jeromen-Peressutti Ana , Velenik Vaneja , Segedin Barbara
Published: October 2024

Background

The aim of our study was to assess the inter-observer variability in delineation of the gross tumour volume (GTV) of oesophageal cancer on magnetic resonance (MR) in comparison to computed tomography (CT) and positron emission tomography and CT (PET/CT).

Patients and methods

Twenty-three consecutive patients with oesophageal cancer treated with chemo-radiotherapy were enrolled. All patients had PET/CT and MR imaging in treatment position. Five observers independently delineated the GTV on CT alone, MR alone, CT with co-registered MR, PET/CT alone and MR with co-registered PET/CT. Volumes of GTV were measured per patient and imaging modality. Inter-observer agreement, expressed in generalized conformity index (CIgen), volumetric conformity index (VCI), planar conformity index (PCI) and inter-delineation distance (IDD) were calculated per patient and imaging modality. Linear mixed models were used for statistical analysis.

Results

GTV volume was significantly lower on MR (33.03 cm3) compared to CT (37.1 cm3; p = 0.002) and on PET/CT MR (35.2 cm3; p = 0.018) compared to PET/CT (39.1 cm3). The CIgen was lowest on CT (0.56) and highest on PET/CT MR (0.67). The difference in CIgen between MR (0.61) and CT was borderline significant (p = 0.048). The VCI was significantly higher on MR (0.71; p = 0.007) and on CT MR (0.71; p = 0.004) compared to CT (0.67). The PCI was significantly higher on CT MR (0.67; p = 0.031) compared to CT (0.64). The largest differences were observed in the cranio-caudal direction.

Conclusions

The highest inter-observer agreement was found for PET/CT MR and the lowest for CT. MR could reduce the difference in delineation between observers and provide additional information about the local extent of the tumour.
Analysis of Ring Recoveries of Song Thrushes Turdus philomelos in North Africa
Authors: Scebba Sergio , del Castillo Maria Oliveri , Sorrenti Michele
Published: October 2024

This study investigates the wintering range and migratory patterns of the Song Thrush in North Africa, focusing on the Maghreb region. Despite the fact that this is the southernmost limit of its wintering range, comprehensive analyses of its geographic origin and spatial distribution are lacking. The research utilizes 840 records, representing the first comprehensive analysis of ringed bird recoveries in North Africa. Findings reveal that the Song Thrush is a common visitor to the Mediterranean belt of North Africa, with distinct migratory routes for different populations. Notably, Italy contributes significantly to the total number of recoveries. The study highlights North Africa as a wintering area for both long-distance migrants and partially migratory populations from Western and Central Europe.

An intriguing observation is the disproportionate concentration of recoveries in Algeria (89.6%), particularly in the Kabylie region, suggesting potential biases due to hunting and trapping activity. Temporal analyses indicate a decline in captured birds from the 1960s to the 2000s, possibly reflecting changes in hunting pressures across North Africa.

The seasonal distribution of recaptures shows a peak in January, emphasizing the thrushes’ southward movements within their wintering range. The study challenges previous assumptions of early spring migration, suggesting onset in the second 10-day period of February. Contrary to previous claims, our data do not support prenuptial movements from Kabylie to Tunisia. Instead, sedentary behaviour in wintering areas until March is suggested by both geographical coordinates and recovery data. Satellite transmitter data confirm departure dates in March for thrushes marked in December in Italy.

In summary, this study provides a concise overview of Song Thrush wintering dynamics in North Africa, offering insights into diverse migratory patterns and regional biases and challenging previously held assumptions about prenuptial movements and migration onset.
COMMUNICATION TECHNOLOGY AND MICRO SMALL MEDIUM ENTERPRISES FOR ENHANCING EXPORT FROM INDONESIA
Authors: Wiradinata Irvan
Published: October 2024

Despite the numerous international digital trading platforms such as eBay, Amazon, and Shopee Export, which can facilitate the business-to-consumer (B2C) business, fewer MSMEs entrepreneurs in Indonesia utilize these. Many MSMEs were merely utilizing email and WhatsApp as the primary communication tools to communicate with their overseas clients. The lack of employing other forms of communication tools or digital trading platforms raises questions. This research, therefore, aims to examine the likelihoods of improving the international online trading platform that use by Indonesia’s entrepreneurs. The research objective is to examine the present communication tools used by entrepreneurs as well as to reveal the communication obstacles that occur during international trade. To obtain the narrative of current international business realm in Indonesia MSMEs industry, a qualitative study performed: literature study, case study, and in-depth interview. This research uses several theories (i.e., diffusion of innovation, contextual design, elaboration likelihood model, motivation, uncertainty reduction, and general system) to examine how invention in trading platforms may shape the export-oriented business process. This research reveals several key results, such as the need to establish an export-focused trading platform that can provide overseas buyer pools, and language as one of the primary communication barriers to perform export. A further challenge for academicians, developers, and governments is to establish a trading platform to enhance export sales which can encounter the buyers pools and language barrier.
Efficiency of various methods of surgical treatment of patients with inguinal hernias
Authors: Sigua B. V. , Semin D. S. , Kotkov P. A. , Kolobkova A. Yu. , Kozobin A. A. , Zemlyanoy V. P.
Published: October 2024

INTRODUCTION. The issue of a relapse-free treatment in herniology has not yet been resolved. Over the past few years due to the development and wider use of modern technologies, there has been an improvement in the quality of surgical care for patients with inguinal hernias. Approaches to preparation for surgical interventions, redistribution of surgical options and postoperative management of patients have also changed significantly.

The OBJECTIVE of this work was to determine modern aspects of the treatment of patients with inguinal hernias and the effectiveness of various methods of surgical treatment in herniology, as well as to identify differences due to statistical heterogeneity in research results.

METHODS AND MATERIALS. More than 2,000 domestic and foreign publications on the surgical treatment of inguinal hernias were subjected to preliminary analysis. Taking into account the inclusion and exclusion criteria, the review included 10 scientific studies published in domestic and foreign scientific journals from 2014 to 2022. We analyzed 2649 cases of surgical treatment of patients with inguinal hernias, assessing the results of treatment and the clinical effectiveness of various methods.

RESULTS. When comparing methods of operations, the best results in terms of the frequency of relapses and the frequency of specific complications were obtained with transabdominal preperitoneal plastic surgery of inguinal hernias. The worst results in terms of the frequency of relapses were demonstrated by total extraperitoneal plastic surgery, in terms of the frequency of specific complications, the highest percentage belongs to Liechtenstein hernia repair. Taking into account the heterogeneity of patients in the studies, we can conclude that the use of transabdominal preperitoneal plastic surgery is a priority.

CONCLUSION. The overall effectiveness of treatment of patients with inguinal hernias has significantly improved using modern principles of evidence-based medicine, standardized approaches to the management of surgical patients and the prevention of possible complications. Endovideosurgical operations widely introduced into practice all over the world have shown the best results in assessing the risk of relapses and specific postoperative complications. However, compared to other methods, the share of endovideosurgical operations is a smaller percentage.
Diaphragmoplasty and myoplasty of the main bronchus stump in right-sided pneumonectomy performed for destructive pulmonary tuberculosis
Authors: Avetisyan A. O. , Serezvin I. S. , Kudriashov G. G. , Yablonskii P. K.
Published: October 2024

INTRODUCTION. One of the most formidable complications in thoracic surgery is bronchopleural fistula after pneumonectomy. Main bronchus stump reinforcement during surgery is used as method of prevention of this complication. The question of the preferred plastic material remains debatable.

The OBJECTIVE was to compare the results of myoplasty and diaphragmoplasty of the right main bronchus stump after pneumonectomy performed for destructive pulmonary tuberculosis.

METHODS AND MATERIALS. A retrospective study from 2015 to 2022 was conducted. The study included 30 patients who were divided into 2 groups. Group 1 included 19 patients who underwent diaphragmoplasty; group 2 included 11 patients who underwent myoplasty. Patients were comparable in terms of sex, age, functional indices, and features of the course and prevalence of the underlying disease. The short-term and long-term results of surgical treatment were compared.

RESULTS. Complicated course of the postoperative period was observed in 6 (31.6 %) patients in group 1 and in 5 (45.5 %) patients in group 2. Satisfactory immediate result in group 1 was achieved in 17 (89.5 %) patients, in group 2 – in 8 (72.7 %). In the remote period, the result of complex treatment of TB patients in group 1: successful treatment – 13 (68.5 %), ineffective treatment – 2 (10.5 %), loss to follow-up – 2 (10.5 %), lethal outcome – in 2 (10.5 %); in group 2: successful treatment – 8 (72.7 %), ineffective treatment – in 3 (27.3 %).

CONCLUSIONS. Right-sided pneumonectomy in patients with destructive pulmonary tuberculosis with drug-resistant mycobacteria is accompanied by a high risk of main bronchus stump failure. The diaphragm and chest wall muscles are reliable materials for strengthening the main bronchus stump.
Surgical tactics of mediastinal bronchogenic cysts. A rare complication – cystobronchial fistula
Authors: Plaksin S. A. , Gorodilov A. A.
Published: October 2024

The OBJECTIVE was to retrospectively study the results of treatment of mediastinal bronchogenic cysts (MBC), to present a case of the formation of a cystobronchial fistula after a transbronchial cyst puncture.

METHODS AND MATERIALS. MBC were diagnosed in 11 (20 %) of 55 patients with various mediastinal cysts. The diagnosis was confirmed by computed tomography data, in one case by a transbronchial puncture. All patients were operated on.

RESULTS. MBC was asymptomatic in 8 cases (72.7 %). Neoplasm in the mediastinum was detected during fluorographic examination in 5 patients, with CT in 6 cases. The dimensions of the cysts according to CT data were 45.5±15.2mm and 39.3±17.5mm, respectively. MRI was performed in two patients due to comorbid pathology of the spine. A 60-year-old patient underwent a transbronchial biopsy with biopsy forceps for diagnostic aim, as a result of which the cyst cavity was opened, infected, and a cystobronchial fistula with a diameter of 2 mm was formed with constant coughing up the purulent contents of the cyst. After anti-inflammatory, antibacterial therapy, after a month and a half, the cyst was removed by thoracotomy due to a pronounced periproccess. Video-assisted thoracoscopic cystectomy was performed for 9 patients. One patient was underwent conversion to thoracotomy due to the adhesive process after a previously performed lobectomy. Exudative pleurisy developed from postoperative complications in one case.

CONCLUSION. The main method of diagnosing MBC is computed tomography. The ultrasound-guided transbronchial needle puncture of a cyst can be used to clarify the diagnosis under antibiotic prophylaxis, but can lead to infection of the cyst. Thoracoscopic excision of MBC should be considered the first-line therapeutic option due to the risk of complications and the presence of clinical manifestations.
Orthoplastic Surgical Techniques and Considerations for Lower Extremity Muscular Perforator Flaps
Authors:   Dept Of Surgery, Ascension Health Saint Joseph Hospital,Chicago IL. Adult And Pediatric Lower Limb Deformity Correction, Orthoplastic Surgery, United States, Collazo Edgardo Rodriguez
Published: October 2024

As a recent medical school graduate and after years of burying myself in textbooks, review books and research articles, I think I can speak for a great majority of physicians and medical professionals when I say that there is nothing more disheartening than a dense and unnecessarily lengthy read.
Preventogen: Shifting The Clinical Paradigm of Pin Site Care and Transosseous Wire Infections Associated with External Fixation in Limb Trauma & Reconstruction
Authors:   Dept Of Surgery, Ascension Health Saint Joseph Hospital,Chicago IL. Adult And Pediatric Lower Limb Deformity Correction, Orthoplastic Surgery, United States, Collazo Edgardo Rodriguez
Published: October 2024

External fixation is a versatile and indicated procedure for open/closed fractures, soft tissue and bone defects, significant infection including osteomyelitis, and limb deformity correction. Pin site infections associated with external fixation are a challenging problem caused by bacterial adhesion with biofilm formation.
multinterp
Authors: Lujan Alan
Published: October 2024

Multivariate interpolation is a fundamental tool in scientific computing used to approximate the values of a function between known data points in multiple dimensions. Despite its importance, the Python ecosystem offers a fragmented landscape of specialized tools for this task. This fragmentation hinders code reusability, experimentation, and efficient deployment across diverse hardware. The multinterp package was developed to address this challenge. It provides a unified interface for various grids used for interpolation (regular, irregular, and curvilinear), supports multiple backends (CPU, parallel, and GPU), and includes tools for multivalued interpolation and interpolation of derivatives. This paper introduces multinterp, demonstrates its capabilities, and invites the community to contribute to its development.
Echodataflow: Recipe-based Fisheries Acoustics Workflow Orchestration
Authors: Staneva Valentina , Butala Soham , Setiawan Landung (Don) , Lee Wu-Jung
Published: October 2024

With the influx of large data from multiple instruments and experiments, scientists are wrangling complex data pipelines that are context-dependent and non-reproducible. We demonstrate how we leverage Prefect (Prefect, 2024), a modern orchestration framework, to facilitate fisheries acoustics data processing. We built a Python package Echodataflow (Echodataflow, 2024) which 1) allows users to specify workflows and their parameters through editing text “recipes” which provide transparency and reproducibility of the pipelines; 2) supports scaling of the workflows while abstracting the computational infrastructure; 3) provides monitoring and logging of the workflow progress. Under the hood, Echodataflow uses Prefect to execute the workflows while providing a domain-friendly interface to facilitate diverse fisheries acoustics use cases. We demonstrate the features through a typical ship survey data processing pipeline.
THEIA: An Offline Tool for Tradespace Visualization
Authors: Williams Samuel , Christensen Scott , Brown Marvin
Published: October 2024

Within the Army Corps of Engineers (USACE), there is a need to evaluate tradespaces. Tradespace datasets are the result of large parameter sweeps run over numerous design options and can consist of thousands or even millions of design configurations and the corresponding performance metrics. Because of the immense size of these datasets, the ability to effectively visualize the data is essential for proper evaluation. At the USACE Engineer Research & Development Center (ERDC), an easy-to-use plotting tool known as the Tradespace Holistic Exploration & Insight Application (THEIA) has been developed for visualizing this complex tradespace data related to the acquisitions process. THEIA was developed using Python libraries including Panel, Param, Holoviews, Bokeh, and Plotly. When combined, these libraries offer a wide range of widgets and plots that allow the user to visualize their data in multiple ways. Additionally, users can easily save plots, export findings, and utilize multiple data files at once. THEIA is also capable of importing tabular data while presenting options to customize visualizations and help the end-user make informed decisions.
Improving Code Quality with Array and DataFrame Type Hints
Authors: Ariza Christopher
Published: October 2024

This article demonstrates practical approaches to fully type-hinting generic NumPy arrays and StaticFrame DataFrames, and shows how the same annotations can improve code quality with both static analysis and runtime validation.
Evaluación de la experiencia del usuario (UX) en procesos gamificados: una revisión bibliográfica
Authors: Taborda Zapata Johnatan A.
Published: October 2024

Introducción: en el contexto del diseño de tecnologías, la medición y comprensión de la experiencia de usuario (UX) han adquirido una relevancia crucial. Este aspecto aborda la imperante necesidad de comprender en detalle cómo los usuarios interactúan y experimentan los artefactos tecnológicos. En esta revisión se aborda la experiencia de usuario en el diseño de procesos y productos gamificados, considerando que, a pesar de los avances en inclusividad y accesibilidad, todavía hay personas que no pueden acceder a los beneficios de las herramientas tecnológicas.Objetivo: identificar y analizar las técnicas y métodos empleados para evaluar la experiencia de usuario en el contexto de procesos y productos gamificados.Métodos: se utilizó una revisión bibliográfica estructurada para recopilar información sobre las técnicas y métricas utilizadas en la evaluación de la UX. Se examinó una diversidad de indicadores que van desde la usabilidad hasta aspectos más subjetivos como la estética, así como los enfoques de evaluación aplicados en estudios previos.Resultados: los hallazgos revelaron una amplia variedad de indicadores y métricas en la evaluación de la UX en entornos tecnológicos. Se destacaron tanto las diferencias como las similitudes en las prácticas de evaluación. La revisión subrayó la complejidad de la experiencia de usuario y la importancia de considerar no solo la usabilidad, sino también aspectos más amplios, especialmente en el ámbito de la gamificación.Conclusiones: se concluye que es fundamental adoptar enfoques multidisciplinarios y utilizar herramientas validadas para lograr una comprensión más completa y aplicable en productos o procesos gamificados. Esto incrementará el entendimiento en la intersección entre la tecnología y la gamificación.
Improving Students' Fluent and Flexible Thinking Skills through the Problem-Based Learning (PBL) Model Based on Technological Pedagogical and Content Knowledge (TPACK) in High School Biology Classes
Authors: Rusyana Adun , Nugraha Adi Tri , Rinaldi Feri Bakhtiar
Published: October 2024

Penelitian ini dilatar belakangi oleh keterampilan berpikir lancar dan keterampilan berpikir luwes  siswa  masih rendah. Tujuan penelitian ini yaitu untuk mengetahui pengaruh model PBL  berbasis TPACK terhadap keterampilan berpikir lancar dan luwes  siswa SMA pada mata pelajaran biologi. Subjek penelitian terdiri atas 25 siswa SMA. Desain penelitian yang digunakan adalan One Group Pretest-Postest Design. Teknik pengolahan data dengan menggunakan aplikasi IBM Statistic SPSS-24 (test of normality, Chi-Square & One  Sample Test, Correlation) dan N-gain. Instrumen yang digunakan berupa  test essay yang  mengacu pada indikator keterampilan berpikir lancar dan keterampilan berpikir luwes. Hasil penelitian  menunjukkan bahwa: (1) data keterampilan berpikir lancar lancar berdistribusi tidak normal  sedangkan data keterampilan berpikir luwes berdistribusi normal; (2) Asympt signifikansi kedua data <0,05; (3) N-gain kedua data <0,03; (4) koefisien korelasi kedua data (r)= 0,38; (5) Siswa laki-laki (rata-rata gain keterampilan berpikir lancar 12,6 & rata-rata gain keterampilan berpikir luwes 11); (6) Siswa perempuan  (rata-rata gain keterampilan berpikir lancar 10,8 & rata-rata gain keterampilan berpikir luwes 12,5). Simpulan dalam penelitian ini adalah: (1) Penerapan model PBL  berbasis TPACK berpengaruh secara signifikan terhadap peningkatan keterampilan berpikir lancar dan luwes dengan kategori rendah; (2) Keterampilan berpikir lancar memiliki hubungan  positif dan signifikan dengan keterampilan berpikir luwes dengan tingkat hubungan rendah; (3) Laki-laki  lebih unggul dalam keterampilan berpikir lancar, sedangkan  perempuan  lebih unggul dalam keterampilan berpikir luwes. Implikasi dalam penelitian ini adalah: (1) perlunya penelitian lebih lanjut untuk memahami faktor-faktor yang mempengaruhi keberhasilan implementasi model pembelajaran PBL berbasis TPACK dalam meningkatkan keterampilan berpikir lancar dan luwes; (2) Perlunya penyesuaian dalam desain model pembelajaran PBL berbasis TPACK dalam mengembangkan keterampilan berpikir lancar dan luwes; (3) perlunya pelatihan bagi guru dalam mengimplementasikan model pembelajaran PBL berbasis TPACK  yang dapat meningkatkan keterampilan berpikir lancar dan luwes bagi siswa; (4) Guru dan peneliti perlu berkolaborasi secara berkelanjutan untuk memfasilitasi pertukaran ide dan pengalaman dalam  mengembangkan strategi pembelajaran yang lebih efektif;  (5) guru harus menyadari adanya keanekaragamn keterampilan berpikir peserta didik; (6) perlunya pemberdayaan pendidikan melalui berbagai pola; (7) perluya pendekatan individualisasi dalam proses pembelajaran.
Fasting for clearer skin: Review article investigating the impact of intermittent fasting on dermatological conditions
Authors: Fathimathul Harshiba Hiba , Muhammed Rafi Nabeel
Published: October 2024

Intermittent fasting (IF) is increasingly recognized for its metabolic benefits and potential therapeutic effects on skin health. IF has gained widespread popularity across all age groups partly due to social media and its alleged health benefits. This paper explores current literature and research findings on IF, focusing particularly on its implications for dermatological conditions. IF is characterized by periodic eating and fasting intervals, which have been demonstrated to impact hormone control, metabolic functions, and cellular repair mechanisms. Through its impacts on inflammation, oxidative stress, and insulin sensitivity, IF may have an impact on dermatological diseases such as acne, eczema, and psoriasis. This review summarizes the mechanisms underlying IF, discusses clinical evidence linking IF to improvements in skin health, and provides practical insights for its implementation. This study also tries to educate the public and medical professionals about the possible advantages of IF in treating dermatological diseases by summarizing the information that is currently available and outlining areas that warrant further investigation.
Acute Kidney Injury by Near-drowning: From the Beach to the Hemodialysis Center: A Case Report
Authors: Bouchoual Mohammed , El Ouazzani Mouad , Errajraji Kaoutar , Anibar Sara , Jabrane Marouane , Arrayhani Mohamed
Published: October 2024

Acute kidney injury (AKI) secondary to near-drowning is rarely described and poorly understood. Much of the literature on near-drowning has concentrated on the respiratory, cerebral, cardiac, and hematologic complications. Near-drowning-induced AKI is a heterogenous clinical entity. We report a case of near-drowning, which developed inisolated AKI due to acute tubular necrosis requiring dialysis.
The clinical spectrum and management outcome of adult-onset aqueductal stenosis: Insight from South-West Nigeria
Authors: Komolafe Edward Oluwole , Ezeaku Chizowa Okwuchukwu , Ejembi Gabriel Owoicho , Anele Christopher Obinna , Balogun Simon Adewale
Published: October 2024

Background:

Adult-onset aqueductal stenosis (AOAS) is an uncommon cause of hydrocephalus in adults. Its etiopathogenesis is poorly understood, with various proposed mechanisms, spectrum of presentation, and management. Very little has been reported on this anomaly in African literature. This study aimed to describe the pattern of presentation, clinical spectrum, and early outcomes following the shunt procedure in our population practice setting.

Methods:

This was a retrospective case series of patients with non-tumoral AOAS managed between 2008 and 2023 in a tertiary center in South-West Nigeria. Relevant demographic, clinical-radiologic, and outcome data were retrieved and analyzed.

Results:

There were seven males and one female. Their age ranged from 18 to 50 years. The duration of symptoms ranged from 3 to 120 months. All patients admitted having headaches; however, visual deterioration (n= 5) was the most common presenting symptom. Features of endocrinopathy (n= 1), cerebellar dysfunction (n= 2), cognitive deficit (n= 2), spontaneous cerebrospinal fluid leak (n= 1), and sphincteric dysfunction (n= 1) were also observed. The mean Evan’s index at the presentation was 0.43. Ventriculoperitoneal shunt (VPS) insertion was performed in seven patients with good outcomes. One patient opted for a referral. One patient had shunt revision 6 years later on account of shunt disconnection.

Conclusion:

AOAS is an infrequent cause of hydrocephalus in our setting, with most patients seeking medical consultation following visual deterioration. Proper evaluation of adults with long-standing headaches and associated features is advocated to avert total visual loss in this subgroup. VPS insertion is a viable treatment option with a good outcome.
ДЕГРАДАЦИЯ КОНТАКТНЫХ МАТЕРИАЛОВ НА ОСНОВЕ Pd–Cu ПРИ ПРОТЕКАНИИ ЭЛЕКТРИЧЕСКОГО ТОКА
Authors: Сачков И.Н. , Огордникова О.М. , Огородников И.И.
Published: October 2024

Поиск и расчетное обоснование новых материалов для ответственных элементов измерительных приборов ведется в современных условиях с применением методов компьютерного моделирования. В статье представлены результаты разработки компьютерной модели для оценки неравномерного температурного поля в поверхностном слое электрического контакта, возникающего из-за выделения Джоулева тепла в предположении неровной поверхности соприкосновения. Предложена концепция микроконтактных точек, пиковое повышение температуры в которых приводят к деградации контактных материалов за счет изменения фазового состава и эффектов упорядочения атомов в кристаллической решетке. Выполнены вычислительные эксперименты с использованием авторской программы, процессор которой использует метод конечных элементов.
КРИСТАЛЛОГЕОМЕТРИЯ ЗАПОЛНЕНИЯ КООРДИНАЦИОННЫХ СФЕР В НАНОЧАСТИЦАХ СПЛАВА СОСТАВА А3В, ФОРМИРУЮЩЕГО СВЕРХСТРУКТУРУ D03
Authors: Старостенков М.Д. , Би Ц. , Ян Ч. , Донг Г. , Сухаиб Л.С. , Гурова Н.М. , Кустов С.Л.
Published: October 2024

В кристаллической структуре высокоэнтропийных многокомпонентных сплавов в качестве составляющих компонентов наблюдаются наночастицы интерметаллидов и упорядочивающихся сплавов. Среди возможных интерметаллических фаз на основе ОЦК решетки можно выделить четыре типа сверхструктур – В2 (состав АВ), В32 (состав АВ), D03 (состав А3В) и С11b (состав А2В, тетрагональная упаковка). В настоящей работе предлагается простой метод упаковки зародышей интерметаллической фазы сверхструктуры D03, формирующихся в первых 21 координационных сферах. Методика позволяет конструировать идеальную кристаллогеометрию зародышей сверхструктуры в последовательности координационных сфер. Очевидно, что в реальности, особенно при очень малых размерах, идеальная упаковка оказывается нестабильной, и при переходе к равновесию будут возникать упаковки с некристаллическими осями симметрии пятого и седьмого порядка. Однако предлагаемая процедура позволяет построить идеальную кристаллогеометрию зародышей сверхструктуры. Реальная конфигурация наночастиц может быть достигнута подключением последующей процедуры релаксации материала с использованием методов молекулярной динамики. В работе используется представление о семи правильных многогранниках: куб, кубооктаэдр, усеченный куб, усеченный кубооктаэдр, ромбокубооктаэдр, октаэдр, усеченный октаэдр.
DESIGN THE LAYOUT OF AIRCRAFT ON-BOARD INTELLECTUAL SUPPORT SYSTEMS
Authors: Бабиченко А.В. , Земляный Е.С. , Елесин И.А. , Задорнова Т.И. , Шевадронов А.С. , Воробьев А.А.
Published: October 2024

Статья посвящена разработке макета бортовой системы интеллектуальной поддержки летательного аппарата. Проанализированы основные характеристики, влияющие на выбор макета. Исследованы возможности сборки под различные архитектуры. Особое внимание уделено вопросу интеграции функционального программного обеспечения (ФПО), реализованного на языке CLIPS, с основным программным кодом на языке C. В статье приводится перечень задач, решаемых посредством интеллектуальной поддержки, и произведена выборка особых ситуаций в полете. Проведено тестирование на различных наборах входных данных, по итогам которого делается вывод о работоспособности и целесообразности разработанного макета.

The article is devoted to the development of the model of the aircraft on-board intellectual support system. The main characteristics influencing the choice of the layout are analyzed. The possibilities of assembling for different architectures are investigated. Particular attention is paid to the integration of functional software (SW), implemented in the language of CLIPS with the main program code in the C language. The article provides a list of tasks to be solved by means of intellectual support and a selection of special situations in flight. Testing was carried out on different input data sets, which resulted in the conclusion about the efficiency and expediency of the developed layout.
Pi-Extended Hypervalent Iodine Macrocycles and their Supramolecular Assembly with Buckminster Fullerene
Authors: Pandey Krishna , Arafin Samsul , Venus Grayson , Jones Eli , Du Yachu , Dumre Pandey Mina , Awais Tahir , Wang Lichang , Plunkett Kyle
Published: October 2024

A series of valine functionalized supramolecular hypervalent iodine macrocycles (HIMs) with enlarged aromatic cores, including naphthalene and anthraquinone, have been synthesized. Single crystal analysis shows the macrocycles consist of a slightly distorted cyclic planner interior with three carbonyl oxygens from the amino acid residues facing towards the center of the cage and all three alkyl groups above one plane. Owing to the enlarged aromatic core, the naphthalene-based HIMs were successfully co-crystallized with Buckminster Fullerene (C60) into a long-range columnar supramolecular structure. The assembled architecture displays a long-range pattern between HIM and C60 in a 2:3 ratio, respectively. Disassembly of the HIMs can be accomplished by adding anions of tetrabutylammonium (TBA) salts that selectively bind with the electron deficient iodine center in HIM systems. A comparative study of the associations constants and the binding energies for different aromatic-based HIMs with TBA(Cl) and TBA(Br) is presented.
Engineering macroporous carbon film support for freestanding Fe-N-C cathode at high current densities
Authors: Kellner Simon , Wang Mengnan , Wang Ying , Barrio Jesus , Yang Guangmeimei , Feng Jingyu , Heutz Sandrine , Stephens Ifan , Titirici Maria-Magdalena
Published: October 2024

As the oxygen reduction reaction (ORR) kinetics account for the largest share of performance losses for fuel cells, most research in platinum group metal (PGM)-free catalysts prioritize on improving the activity of catalysts by maximizing the active site density and by engineering of the local coordination environment of the active sites to meet the activity targets. Thereby, the mass-transport capabilities of the catalyst is usually neglected at early stages of catalyst development. In this work, the reverse approach is taken: A carbon film support with an interconnected macropore network is designed for improved mass transport. Carbon precursors mesophase pitch and polyvinylalcohol (PVA) are combined with the macropore template polystyrene (PS) spheres in a ball-milling process to form a slurry for casting the film which is subsequently carbonized in different atmospheres to tune the micropore volume and combined with a model FeN4 active site. The macroporous films are thoroughly characterized by means of SEM, N2 sorption, XPS and Mercury Intrusion Porosimetry (MIP) and tested as ORR catalyst support for a model FeN4 active site in a Gas-Diffusion-Electrode (GDE) half-cell, which can operate at high current density conditions. The mass transport properties of film supports with thickness of 30 µm and 70 µm are analysed and compared to a conventional powder catalyst layer based on Vulcan XC 72 powder support. The average overpotentials for powder and film supports at a high current density of 2 A/cm2 are centred in the narrow range of 0.52 V ± 0.03 V, which highlights the competitive mass transport performance of the macroporous film support.