bluuebunny/crossref_metadata_2025 huggingface dataset:
Human-machine Translation Model Evaluation Based on Artificial Intelligence Translation
Authors: Li Ruichao , Mohd Nawi Abdullah , Kang Myoung Sook
Published: January 2024

As artificial intelligence (AI) translation technology advances, big data, cloud computing, and emerging technologies have enhanced the progress of the data industry over the past several decades. Human-machine translation becomes a new interactive mode between humans and machines and plays an essential role in transmitting information. Nevertheless, several translation models have their drawbacks and limitations, such as error rates and inaccuracy, and they are not able to adapt to the various demands of different groups. Taking the AI-based translation model as the research object, this study conducted an analysis of attention mechanisms and relevant technical means, examined the setbacks of conventional translation models, and proposed an AI-based translation model that produced a clear and high quality translation and presented a reference to further perfect AI-based translation models. The values of the manual and automated evaluation have demonstrated that the human-machine translation model improved the mismatchings between texts and contexts and enhanced the accurate and efficient intelligent recognition and expressions. It is set to a score of 1-10 for evaluation comparison with 30 language users as participants, and the achieved 6 points or above is considered effective. The research results suggested that the language fluency score rose from 4.9667 for conventional Statistical Machine Translation to 6.6333 for the AI-based translation model. As a result, the human-machine translation model improved the efficiency, speed, precision, and accuracy of language input to a certain degree, strengthened the correlation between semantic characteristics and intelligent recognition, and pushed the advancement of intelligent recognition. It can provide accurate and high-quality translation for language users and achieve an understanding of natural language input and output and automatic processing.
Modified Deep Pattern Classifier on Indonesian Traditional Dance Spatio-Temporal Data
Authors: Mulyanto Edy , Yuniarno Eko Mulyanto , Hafidz Isa , Budiyanta Nova Eka , Priyadi Ardyono , Hery Purnomo Mauridhi
Published: January 2024

Traditional dances, like those of Indonesia, have complex and unique patterns requiring accurate cultural preservation and documentation classification. However, traditional dance classification methods often rely on manual analysis and subjective judgment, which leads to inconsistencies and limitations. This research explores a modified deep pattern classifier of traditional dance movements in videos, including Gambyong, Remo, and Topeng, using a Convolutional Neural Network (CNN). Evaluation model's performance using a testing spatio-temporal dataset in Indonesian traditional dance videos is performed. The videos are processed through frame-level segmentation, enabling the CNN to capture nuances in posture, footwork, and facial expressions exhibited by dancers. Then, the obtained confusion matrix enables the calculation of performance metrics such as accuracy, precision, sensitivity, and F1-score. The results showcase a high accuracy of 97.5%, indicating the reliable classification of the dataset. Furthermore, future research directions are suggested, including investigating advanced CNN architectures, incorporating temporal information through recurrent neural networks, exploring transfer learning techniques, and integrating user feedback for iterative refinement of the model. The proposed method has the potential to advance dance analysis and find applications in dance education, choreography, and cultural preservation.
EFEKTIVITAS GAYA KEPEMIMPINAN DAN MOTIVASI KERJA PADA PRODUKTIVITAS KERJA KARYAWAN CV. HAHA MULTI INDO
Authors: Fitria Ainun , Mahfudiyanto Mahfudiyanto , Laili Choirun Nisful
Published: January 2024

Di era globalisasi modern dengan pesatnya kemajuan teknologi, peran sumber daya manusia memiliki pengaruh dalam keberhasilan bisnis. Setiap perusahaan dituntut untuk dapat menggunakan sumber daya yang dimiliki seoptimal mungkin, dalam arti perusahaan harus dapat menciptakan keunggulan kompetitif melalui pengelolaan dan pengkoordinasian sumber daya manusia secara efektif dan efisien agar dapat bersaing dengan para kompetitor dan dapat menghadapi persaingan bisnis yang semakin ketat. Penelitian ini memiliki tujuan untuk membuktikan efektivitas gaya kepemimpinan dan motivasi kerja pada produktivitas kerja karyawan. Penelitian ini menggunakan metode penelitian kuantitatif. Populasi dalam penelitian ini dengan jumlah 84 orang sebagai sampelnya sehingga dalam penelitian ini mengunakan sampel jenuh yang menjadikan seluruh karyawan divisi produksi sebagai sampel. Hasil penelitian membuktikan: (1) Gaya kepemimpinan memiliki efektivitas positif serta signifikan pada produktivitas kerja karyawan divisi produksi, (2) Motivasi kerja memiliki efektivitas positif serta signifikan pada produktivitas kerja karyawan divisi produksi, (3) Gaya kepemimpinan dan motivasi kerja memiliki efektivitas positif serta signifikan pada produktivitas kerja karyawan divisi produksi.
Ethical Reflections on the Boundaries of Moral Indifference -To what extent are we responsible for others?
Authors: Lv Wenyu
Published: January 2024

When the lines between moral indifference and indifference blur, it is easy to fall into one of two misunderstandings. it is easy to fall into one of two misunderstandings: moral nihilism or moral disenchantment. If we define moral indifference as any behavior, it tends to lead to moral nihilism. If we define any behavior as non-moral indifference, moral indifference is susceptible to moral disenchantment. Only a clear delineation of the boundaries of moral indifference can aid in the dissipation of the phenomenon. Moral indifference is a moral judgment, a moral psychological behavior, and a social phenomenon. Effectively addressing the boundary issue of moral indifference is a key way to mitigate moral indifference. Specifically, collaborative governance is an effective mechanism for dealing with moral crises, contractual governance is an important channel for upholding moral authority, and network governance is a preferred choice for shaping a moral community.
Assessing ICT Integration in Teaching Training: A Study of Moral Education Teacher Trainers at Universiti Pendidikan Sultan Idris, Malaysia
Authors: Salleh Sakinah , Francis Helda
Published: January 2024

Communication and Information Technology (ICT ) has become a necessity in the education system. However, there are still teachers who have not integrated ICT into their teaching and learning. This research was carried out to examine the level of willingness to use ICT during teaching training among Moral Education teacher trainers at Universiti Pendidikan Sultan Idris (UPSI), Malaysia. The willingness aspect studied is knowledge, attitudes and practice. This study involved 103 teacher trainers as respondents. Study data was obtained from a set of research questions and analyzed using SPSS Version 25 software to obtain frequency, percentage and minimum. The results of the study show that the overall minimum score for the challenge of using ICT is high, while the differences in the level of knowledge readiness and attitudes towards the use of ICT during Teaching Training show that there is no significant difference between junior trainer teachers and senior trainer teachers. The implications of this study can help teacher trainers in integrating ICT in their teaching and learning.
Pemaknaan Nasionalisme dalam Upaya Pencegahan Illegal Trading di Wilayah Perbatasan
Authors: Keraf Fransiskus Markus Pereto , Mambur Yohanes Pebrian Vianney , Feka Yanuarius Sani
Published: January 2024

Penelitian ini dilatarbelakangi oleh rendahnya sikap nasionalisme masyarakat di perbatasan Indonesia dan Timor Leste. Masyarakat yang tinggal di wilayah perbatasan ini melakukan praktek illegal trading serta penyelundupan barang. Penelitian ini bertujuan untuk mencegah praktek illegal trading di wilayah perbatasan melalui pemaknaan nasionalisme. Pemaknaan nasionalisme yang diselenggarakan berupa pelaksanaan kegiatan yang melibatkan seluruh komponen masyarakat, seperti: pawai obor dan pengibaran bendera. Pendekatan kualitatif menjadi rancangan dalam penelitian ini dengan metode studi kasus. Subjek dalam penelitian ini adalah para pemuda karang taruna serta masyarakat umum di Desa Napan. Partisipan dalam penelitian ini yakni kepala desa, ketua karang taruna, tokoh adat serta tokoh masyarakat. Metode pengumpulan data yang digunakan adalah observasi, wawancara, dan dokumentasi. Teknik analisis data terdiri dari reduksi, penyajian, dan penarikan kesimpulan. Penelitian ini menyimpulkan bahwa melalui kegiatan pawai obor dan pengibaran bendera raksasa mampu mengembangkan sikap nasionalisme masyarakat di perbatasan. Pelanggaran praktek illegal trading dapat dicegah melalui pemaknaan nasionalisme dalam bentuk kegiatan pawai obor dan pengibaran bendera raksasa. Penelitian ini juga memiliki implikasi terhadap Desa Napan yakni harus segera membuat peraturan desa. Peraturan tersebut dapat mengayomi pemerintah Desa secara konstitusional terhadap praktek penyelundupan barang dan illegal trading.
Exploring the association between the proximity to and density around schools of retailers selling IQOS products and youth use of heated tobacco products: evidence from the 2020–2021 COMPASS study
Authors: Mott Hunter , Leatherdale Scott T. , Cole Adam G.
Published: January 2024

Introduction

Heated tobacco products (HTPs) are novel tobacco products that may appeal to youth. This study explored whether HTP retailer proximity and density to secondary schools were associated with youth use of HTPs in four Canadian provinces.

Methods

An online search between November 2020 and March 2021 identified retailers selling IQOS devices and HEETS (tobacco sticks used in IQOS) within 500 m, 1000 m and 1500 m radius circular buffer zones around high schools (N = 120) participating in the COMPASS study in 2020–2021. Retailer proximity/density data were linked to crosssectional student-level data (N = 40 636 students), and multilevel regression models examined the association between HTP retailer proximity and density and current HTP use, controlling for relevant covariates.

Results

While only 10.0% of schools had at least one retailer selling IQOS devices within 1000 m of the school, 65.0% of schools had at least one retailer selling HEETS. The school a student attended accounted for 23.7% of the variability in the likelihood of currently using an HTP. However, HTP retailer proximity to and density around schools were not significantly associated with the likelihood of students currently using HTPs.

Conclusion

While the school a student attended accounted for a significant amount of variability in HTP use, these findings suggest that students may be obtaining HTPs through other, non-retail sources. Continued monitoring is warranted as HTP use among youth may change.
El nivel segmental y los procesos morfofonológicos en el mixteco de San Jerónimo de Xayacatlán
Authors: Rueda Chaves John Edinson
Published: January 2024

Este artículo describe la morfofonología segmental del mixteco de San Jerónimo de Xayacatlán. Las alternancias consonánticas y vocálicas en los verbos se abordan desde lo pancrónico para explicar cómo la fosilización y el ajuste a la minimidad dan cuenta de la alomorfía. La morfología realizacional explica cómo las propiedades de modo-aspecto y de persona se materializan mediante alteraciones fonológicas en los lindes de la palabra mínima. El enfoque de doble ruta para la exponencia determina el cómputo y soluciona problemas de indeterminación que persisten en los análisis. Se plantea a la palabra mínima como una entidad y un dominio morfofonológico. Las conclusiones buscan establecer una tradición de estudios sobre la morfofonología de las lenguas mixtecas.
Hydrothermal synthesis of valve metal Ta-doped titanate nanofibers for potentially engineering bone tissue
Authors: Cole Parker , Tian Yang , Thornburgh Savannah , Malloy Mary , Roeder Lauren , Zhang Lu , Patel Mansi , Xiao Yiting , Huang Yan , Tian Z. Ryan
Published: January 2024

Recent research efforts have increasingly concentrated on creating innovative biomaterials to improve bone tissue engineering techniques. Among these, hybrid nanomaterials stand out as a promising category of biomaterials. In this study, we present a straightforward, cost-efficient, and optimized hydrothermal synthesis method to produce high-purity Ta-doped potassium titanate nanofibers. Morphological characterizations revealed that Ta-doping maintained the native crystal structure of potassium titanate, highlighting its exciting potential in bone tissue engineering.TRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian //  TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//
World development assessment in an invariant coordinate system of energy units: The newly industrialized economies perspectives
Authors: Trusina Inese , Jermolajeva Elita , Abramov Viktor , Gopejenko Viktors
Published: January 2024

The purpose of the article is to present the results of analysis of newly industrialized countries in the context of sustainable development. The study took place within the framework of the Kaldor’s structural-economic model of the gross domestic product and the energy flow model, using the socio-economic systems power changes analyzing method. Within the context of the approach, an invariant coordinate system in energy units is considered, the necessary conditions for sustainable development are formulated, and the main parameters for assessing the potential for growth and development are determined. The article focuses on key issues regarding new concepts of sustainable development and methodology for assessing sustainable development using the concept of socioeconomics useful power for the countries of the newly industrialized economy a group of emerging countries that have made in short time period a qualitative transition in socio-economic development. Based on a new definition of sustainable development in energy units, development trends are formulated for the selected countries during 20 years for the period 2000–2019. Results of the study can be used to planning for the transition to sustainable development. The data of the Central Statistical Office of European Union, the World Bank and the United Nations Organization were used for calculations. Initial interpretation of the calculated data has been done for the largest newly industrialized countries Brazil, India and China in terms of the gross domestic product in the period 1990–2019. For comparison, data on USA are presented as countries with advanced economy.
The Importance of Reducing Overbite Before Overjet with Initial Treatment Mechanics
Authors: Jenner John D.
Published: January 2024

Rapid overjet reduction commonly experienced with the rihbon arch bracket may inadvertently have a major influence on prorile control. The main purpose of this paper is to warn of the danger of early upper incisor retraction, particularly in the deep bite patient in whom the upper incisor retraction itself is the direct cause of the backward mandibular rotation. The paper explores the incisor interference phenomenon as a major cause of backward mandibular rotations and suggests means of avoiding incisor interference by moddification of the treatment plan and treatment mechanics.

To provide the best treatment results, initial treatment mechanics should be modified so that reduction of overbite takes priority over reduction of overjet.
Occlusal Contact Changes Before and After Orthodontic Treatment of a Group of Child & Adolescent Patients with TMJ Disturbance
Authors: Deng Yumeng , Fu MinKui
Published: January 2024

Occlusal contacts were examined before and after orthodontic treatment in 32 eight- to seventeen-years-old patients with temporomandibular joint disturbance. Add-Picture, a computer image system, was applied to a silicone occlusal record obtained in the intercuspal position (ICP) to assess the qualitative and quantitative changes of occlusal contacts. Comparing the two images before and after treatment, significant difference was noted in the number, size, location and type of contacts. After orthodontic treatment: the mean number of contacts on anterior teeth reduced, the mean area per contact decreased, the number of contacts on centric stops increased and type IV contacts (on the inclined plane) decreased. The present study indicates that orthodontic treatment has a positive effect, both qualitatively and quantitively, on the distribution of occlusal contacts in ICP and seems to contribute to the establishment of occlusal stability in ICP.
Methods of Assessing and Grading Malocclusion: A Review
Authors: Otuyemi O.D. , Jones S.P.
Published: January 2024

Methods of assessing and grading malocclusion are reviewed under the headings: Diagnostic, Epidemiological, Treatment need, Treatment success and Treatment complexity. Historic and current usage, together with an appraisal of some of their advantages and weaknesses, are presented. The multifactorial and multivariate nature of malocclusion makes any single classification not only difficult but also of limited value in dentofacial assessment.

Angle’s classification, which is widely used, was originally devised as a prescription for orthodontic treatment planning: not as an epidemiological tool. Many of the indices developed to assess treatment need may be criticised for lack of objectivity. Most of the current indices of treatment standards show low intra- and inter-examiner variability when compared with those used for diagnostic or epidemiological purposes. To date, no suitable index has been developed to measure treatment complexity.
Guiding Occlusal Delvelopment wih Functional Appliances
Authors: Nielsen Ib Leth
Published: January 2024

Orthodontic treatment with functional appliances has been available since the beginning of this century. One of the first known functional appliances, ‘the Monobloc’, was introduced at a conference in Paris in 1926 by Pierre Robin.1This appliance had been developed at the beginning of the century for the treatment of patients with Pierre Robin syndrome. Patients with this syndrome have extreme retrognathia of the mandible at birth and, as a result, the tongue is so far back in the pharynx that there is a risk of snffocation. Several years later, the same appliance was modified by Pierre Robin himself for the treatment of patients with Class II malocclusions which are in combination with extreme overjet.
Tips for Talking to Veterans: Interview With Steven R. Thorp, PhD, ABPP
Authors: Cannon Bradley
Published: January 2024

Would you like to improve your ability to communicate with and support veterans? Dr. Steven R. Thorp unpacks veteran-related misconceptions, mental health, and experiences. Episode made possible by CSPP Alliant International University.
Análisis geoespacial de los sitios de afectación por inundación desde una base de datos recopilada por el cuerpo de bomberos de Guadalajara durante el temporal de lluvia del periodo 2010-2022
Authors:   Universidad de Colima, Facultad de Ingeniería Civil, Colima, México, González Maura , Comi Boris ,   Coordinación Municipal de Protección Civil de Guadalajara, Guadalajara, México, López-De la Cruz Jesús ,   Universidad de Colima, Facultad de Ingeniería Civil, Colima, México
Published: January 2024

Se analizan los Sitios de Afectación por Inundación (SAI’s) de inundación atendidos por La Coordinación de Protección Civil de Guadalajara (CMPCG) desde un enfoque geoespacial, se da a conocer la distribución de cómo, cuándo y dónde han afectado las inundaciones durante los últimos 12 años (2010-2022). El caso de estudio es la zona urbana del municipio de Guadalajara, se analiza la frecuencia, distribución e intensidad de las inundaciones año por año y del total del periodo de estudio. Se obtuvo un mapa de categorización del tirante de agua, considerando la altura de nivel de inundación histórica presentada por colonias, donde la mayoría presenta un rango que va de medio a bajo. Posteriormente, se analizaron los servicios atendidos por bases del área operativa de la CMPCG, donde los mayores sectores afectados son la vía pública y el sector casa habitación. Se trabajó con un total de 3,676 SAI’s contenidos en el inventario de inundaciones de la CMPCG. El estudio permite identificar 63 Sitios Recurrentes de Inundación (SiRI’s) con la información de los SAI´s y aplicando dos criterios de recurrencia definidos en este documento. También, trasladando esta información a escala de colonias, se corresponden a 65 Colonias Recurrentes de Inundación (CRI’s). Además, los resultados exhibieron 20 Sitios Críticos de Inundación (SiCI’s), los cuales además de cumplir con los criterios de recurrencia e incidencia tanto en el campo de domicilio como en el campo de cruce. Se destaca la labor que se realiza día con día en la Coordinación Municipal de Protección Civil de Guadalajara (CMPCG) y específicamente del personal del Área Operativa, ya que este estudio se realizó a partir de la información recabada por dicho personal durante cada temporal de lluvias. Con este estudio, se contribuye con la primera etapa de la Gestión Integral de Riesgos al incluir el análisis e identificación de los sitios de inundación en el municipio de Guadalajara.
Knowledge and practice of emergency physicians regarding drug therapy for acute myocardial infarction
Authors: Algharbi Atheer , Safi Layaly , Altukruni Yara , Ghbban Ahmed , Hussain Noura
Published: January 2024

Objective:
This study aimed to assess the knowledge and practice of emergency physicians regarding drug therapy for acute myocardial infarction (AMI).
Methods:
A cross-sectional survey of emergency physicians aged between 35 and 60 years was carried out. Emergency physicians were surveyed regarding drug therapy interventions in acute myocardial infarction.
Results:
Around 267 (89.0%) of the 300 emergency physicians who responded were under 40 years. Among emergency physicians, 176 were men (58.0%). Emergency physicians responded to the study they treated 1 to 4 patients with AMI (n = 183, 61.0%) and more than 5 (n = 117, 39.0%). According to the current results, the demographic data of responses to emergency physicians (age and gender) had a significant effect on the knowledge and practice of emergency physicians regarding drug therapy for acute myocardial infarction.
Conclusion:
This study indicated that emergency physicians were significantly more aware of and skilled in using most short-term pharmacological therapies while treating AMI. The treatment of patients with AMI, based on evidence-based medicine, is one of the most basic examples of the purpose and responsibilities of the emergency physician.
Relate North: Possible Futures
Authors: Coutts Glen , Jokela Timo
Published: January 2024

Although concerned mainly with research and knowledge exchange in art and design education in the north and the Arctic, the contributors touch on issues and topics that will have wider interest. For example, the sociocultural and geopolitical dimensions of living in rural and urban settings in northern, remote and peripheral regions. In each essay, the notion of possible futures is about more than postulation, embracing art-infused praxis and inquiry with Indigenous and nonindigenous groups in the north and the Arctic. The book will interest a wide constituency including, for example, anthropologists, cultural geographers, sociologists, artists, designers, art educators and practice-based researchers. In addition, the chapters will be relevant to students in the arts or education and policymakers concerned with Arctic and northern issues on contemporary art, craft, design, and education.
Neural Networks and Support Vector Regression for the CRJ-700 Longitudinal Dynamics Modeling
Authors: Tondji Yvan , Ghazi Georges , Mihaela Botez Ruxandra
Published: January 2024

This paper presents a new methodology to identify the aerodynamic coefficients and predict the short-period and phugoid dynamics of an aircraft using two types of supervised learning models: artificial neural network (ANN), and support vector regression (SVR). The study was validated on the CRJ 700 regional jet. Simulated flight tests data were collected during various maneuvers performed on a Level D CRJ-700 Virtual Research Simulator (VRESIM) designed by CAE and Bombardier. Level D is the highest qualification for flight dynamics and propulsion models given by the FAA. Both ANN and SVR models were trained using the data collected from the VRESIM to develop multidimensional models capable of predicting the aerodynamic coefficients of the aircraft for any conditions in the flight envelope, defined by altitude, speed, weight, and center-of-gravity position. The choice of solvers and the optimization of hyperparameters are detailed for both types of models. These models were validated by comparing predicted flight parameters with experimental data obtained from the CRJ 700 Level D VRESIM considering the same pilot inputs. The results showed that both types of models (ANN and SVR) were able to reproduce with excellent accuracy the nonlinear behavior of the short-period and phugoid dynamics.
Novel Pressure-Based Optimization Method Using Deep Learning Techniques
Authors: Tian Jiehua , Qu Feng , Sun Di , Wang Qing
Published: January 2024

Traditional optimization methods usually perform aerodynamic design by manipulating geometry shapes, which would ignore useful information in flowfields. In order to improve the defect, a novel pressure-based optimization (PBO) method is developed in this study to conduct the design of airfoils using deep learning techniques. In this method, a one-dimensional convolutional auto-encoder (1D-CAE) is employed to extract representative features from the pressure distributions. With these latent features as inputs, two multilayer perceptrons are constructed to predict airfoil profiles and forces, respectively. Furthermore, these deep learning models are combined with the genetic algorithm to minimize the drag of the RAE2822 airfoil. Finally, two data mining techniques are implemented to investigate the optimization mechanisms. Results show that, after the latent dimension reaches 12, the reconstructed pressure distributions by 1D-CAE agree well with the original ones. The predicted forces are close to the observations, with the mean absolute relative error below 0.21% for [Formula: see text] and 0.69% for [Formula: see text] on the testing set. Meanwhile, the predicted airfoils show a good match with the true profiles, and the root mean square error is less than 0.08% for all the testing samples. Optimized results show that, compared with several state-of-the-art optimization approaches, the proposed PBO method achieves a lower drag coefficient and has the potential to provide better airfoil designs. In addition, the discovered mechanisms indicate that the pressure distributions could be manipulated by varying pressure features to achieve drag reduction of airfoils.
Numerical Optimization of Metasurface Cells for Acoustic Reflection
Authors: Palma Giorgio , Centracchio Francesco , Burghignoli Lorenzo , Cioffi Ilaria , Iemma Umberto
Published: January 2024

Metamaterials and metasurfaces disclosed new degrees of freedom in controlling the acoustic field. Exploiting the generalized Snell law and the generalized law of reflection, the assembly of subwavelength unit cells is able to achieve extraordinary refraction and reflection by means of a controlled phase delay introduced in the field by the treated boundaries. The space-coiling design is one of the most powerful for cells in this metadevice class, providing effective low-thickness metasurfaces. However, space-coiling suffers from a narrow frequency operating range due to the intrinsic connection between the design operating wavelength and the characteristic dimensions of the metasurface. This work defines a procedure based on numerical optimization for designing space-coiling cells for modular acoustic metasurfaces, extending the frequency range in which the metasurface is effective. The set comprises eight different unit cells, each introducing a tailored phase shift in the reflected field that can be arranged to produce the desired acoustic effect. The broadband design is obtained by minimizing the dependency on the operating frequency of phase delay introduced by the cells, keeping the overall thickness below a quarter of the design wavelength. Results are shown for the benchmark problem of a metasurface modifying the reflection angle from a boundary.
Vortical Structures over a Generic Tailless Chined Forebody–Delta Wing
Authors: Rojas Carvajal Tomás E. , Kumar Guha Tufan , Amitay Michael
Published: January 2024

The flowfield over a model having a chined forebody and a simple delta wing was investigated experimentally using oil flow visualizations and stereoscopic particle image velocimetry at a mean chord-based Reynolds number of [Formula: see text], angles of attack of 20 and 30 deg, and yaw angles of 0 and 5 deg. The flowfield over the model exhibited pairs of leading-edge vortices similar to those around a double-delta wing, except for the influence of the fuselage, where the chine vortex followed the curvature. The development and interaction of the two vortices were measured and analyzed. It was found that increasing the angle of attack resulted in wakelike vortices, whereas increasing the yaw angle yielded a wakelike vortex on the windward side and a jetlike vortex on the leeward side. The interaction of the windward side vortex with the physical barrier of the forebody surface was observed to greatly affect its behavior and the interaction downstream. In some configurations, the merged vortex exhibited a breakdown. The flowfield and the vortex dynamics under various conditions are discussed in detail to provide insight into manipulating the flowfield using physics-based flow control.
Analysis of Modern Political Communication Dynamics
Authors: Unmuha Taufiq , Khairil Anwar  , Irpannusir Rasman  , Said Fadhlain
Published: January 2024

The Study of Modern Political Communication Dynamics Analysis uses a progressive qualitative research methodology using a political democracy theory approach, as an analytical tool in order to create communication conditions as desired for efforts to harmonize modern political democracy, as well as in an effort to build an integrated political system in the development of science and technology better communication. The findings of this study are the modernization of political communication by using the development of science and advanced communication and information technology, in line with the development of political ethics, norms, rules, and being able to build a better democracy. Then also findings related to efforts to create political integration that prioritizes moral ethics in a normative and responsible manner, as a political challenge in the midst of increasingly competitive social life. This is done in an effort to convey political messages and information, public policies, and political decisions to create a good and clean government. Then political communication is the creativity of interaction between humans, political actors, and society, as an appreciation of human rights, equal rights as leaders with character and authority. This is increasingly important, it is also a matter of continuing to build people's trust, as sovereignty and power which is a political mandate to lead in the demands of the development of a digital and virtual political system and political democracy, as a phenomenon of modern political democracy today and in the future as an effort to integrate community life.
Dance Images in the Documentary Films: Its History and Development
Authors: Yu Kun  , Yaakup Hani Salwah , Syed Zainuddin Sharifah Sofiah , Mohammad Razi Siti Aishah
Published: January 2024

Since its development, various types and forms have been introduced in documentaries. This includes the usage of dance images in the documentary. The existence of the dance video is used as a segment of the documentary to express the rich artistic image. Therefore, the use of dance images in documentaries needs to be treated rationally for the audience to understand its meaning. The audience has its own perception, and at the same time has its own cognition and understanding, and whether the audience understands the rhetoric of body language conveyed by the communicator. At the same time, the documentary does not lack the occurrence of the story, and the relationship between the dance image and the plot is also an issue that needs attention. However, the relationship between dance images and plots in documentaries is still debatable due to the lack of research done in this area. In this article, the focus will be given to the history and development of dance images in the documentary as a foundation of further study on this area. The discussion includes the history of dance images and the development of dance images from the perspective of visual narrative, visual vocabulary, imaging environment, and its relation to video technology & dance video.
New Trends in Intercultural Communication Under New Conditions of Normalization in Sri Lanka
Authors: Rathnayake Sandunika
Published: January 2024

The spread of the COVID-19 virus is a huge crisis that the whole world has had to face recently. Millions of lives were lost due to the spread of this virus, and Sri Lanka also had to face the impact of this. In this situation, almost every country in the world has introduced various health guidelines to protect people from the COVID-19 virus. The purpose of this research study was to identify the new trends in communication between each culture in Sri Lanka, specific to the COVID-19 guidelines, and communication during the period of the spread of the Covid virus. COVID-19 can be considered a health as well as a cultural crisis. Studying the behavior of the media in relation to this period, as well as how to inform people by exchanging information between each culture, was focused here. During the study, the data were collected by studying media reports, the use of literature, and the Internet. Accordingly, it was possible to determine how cultures worked more closely during the period when the new conditions of normalization were implemented, compared with the period in which people lived before. It was emphasized that the use of intercultural communication can be identified through measures taken by the government in such a way that it does not interfere with communication between people not only from one linguistic community, but also people with diversity in terms of religious, cultural, and social backgrounds. Thus, this study realized that cultural crises were overcome to a large extent with the help of intercultural communication, which was effectively carried out by the government of Sri Lanka for proper communication with the citizens of Sri Lanka, so-called multicultural state.
Framing Media on the Polemic Omnibus Law in Urban Communities Indonesia
Authors: Ihsan Suri  , Umar Halim  , Arsenius Wisnu Aji Patria Perkasa
Published: January 2024

The demonstration occurred because of a form of rejection of one thing done by policymakers in making a regulation that would be implemented as a whole. In addition, demonstrations are also one of the ways that have been arranged to convey g the aspirations that want to be conveyed to a problem. In addition, several articles in the Job Creation Law are being submitted to the Constitutional Court for Judicial Review because they are considered to have legal defects in their discussion, where several laws are considered too partial to state organizers. The public assesses the urgency, where the ratification of the Job Creation Law looks like a rush and a rush, so it lacks input from various parties. Recently, there have been large-scale demonstrations carried out in various regions in Indonesia related to the rejection of the ratification of the Job Creation Law, commonly called the Omnibus Law, or it can be said to be the Sapu Jagat Law. This is due to the large amount of speculation and information that develops in the community, causing a negative sentiment from the public toward the government. By using framing theory, the author found that this negative sentiment arises as a result of defects in public communication conveyed from the government as stakeholders and policymakers and regulations that will be applied to the community. In the end, this negative sentiment caused a very massive impact, namely the increasing national instability.
Framing Analysis of Earthquake News on CNN Indonesia Online Media
Authors: Shahnaz Sabahunnur Kautsar  , Wahyunengsih
Published: January 2024

This research aims to provide information related to news framing analysis on CNN Indonesia online media in the Bali earthquake. This framing analysis research uses the approach by Zhongdang Pan and Gerald M. Kosicki. The method used is descriptive qualitative. The results of this study are based on the use of four structures including 1) The syntactic structure in this news has a headline, 2) the script structure in this news shows that the main purpose of this news is to provide information about the natural earthquake disaster that occurred in Bali, 3) The theme emphasized in this news is about the M 4.8, 4) There are three rhetorical structures in the news, which are shearing, landslides, rock falls. It can be concluded that the syntactic aspect in the headline section is mentioning the Earthquake in Bali. The lead and background information contains information from BMKG. For the quotation section, there is only one source, namely Daryono. Then, CNN Indonesia online media does not write statements and opinions in the news. The script element in this media has reached perfection, where CNN has used the 5W + 1H elements in writing its news properly and correctly. The thematic element in CNN Indonesia media is explanatory coherence. Lastly, the rhetorical element in the media uses a choice of substitute words that are rarely known by the public
Information and Communication Technologies (ICTs) For E-Learning in Tertiary Education in Sri Lanka: A Study of Undergraduates from State Universities in Colombo District
Authors: Galagedarage Thushari Madhubhashini , Kaushallya Indrasena
Published: January 2024

E- learning was introduced to tertiary education during the Covid 19 Pandemic.  Therefore, the study aimed to investigate the opportunities and challenges faced by undergraduates in state universities in Colombo District in relation to e-learning. Technology Acceptance Model (TAM) was used as the main theoretical framework and the qualitative approach was applied through interviews and Focus Group Discussions (FGDs). Data were collected from all state universities in Colombo district using purposive sampling. The results showed that the majority of undergraduates have a positive attitude towards e- learning.  Because e-learning is timesaving, convenient and cost-saving during the pandemic and socio-economic issues in the country such as fuel issues, power cuts etc. On the other hand, the undergraduates faced some challenges in e- learning such as a lack of ICT tools and equipment, connectivity issues, the cost of data, background noises, a lack of interaction with peers and teachers, health issues such as eye issues, anxiety etc. The results showed that the challenges of e-learning mainly occur due to the issues connected to ICTs. Therefore, the responsible authorities should take proper measures to provide adequate ICT infrastructure and resources for students to have a convenient and flexible e- learning system.  In this context, it is also important that the state universities make the arrangements to have flexible learning for undergraduates. Therefore, hybrid learning allows undergraduates to attend traditional face to face sessions while also attending online classes, reducing transport issues, expenses, optimizing ICT infrastructure and resource utilization.
Ultrasonic or Microwave Modified Continuous Flow Chemistry for The Synthesis of Tetrahydrocannabinol: Observing Effects Of Various Solvents And Acids
Authors: Ramirez Giovanni , Tesfatsion Tesfay , Docampo-Palacios Maite , Cruces Ivan , Hellmann Adam , Okhovat Alex , Pittiglio Monica , Ray Kyle , Cruces Westley
Published: January 2024

Synthesizing tetrahydrocannabinol is a lengthy process with minimal yields and little applicability on an industrial scale. To close the gap between bench chemistry and industry process chemistry, this paper introduces a small-scale flow chemistry method that utilizes a microwave or ultrasonic medium to produce major tetrahydrocannabinol isomers. This process produces excellent yields and minimal side products, which leads to more efficient large-scale production of desired cannabinoids.
Competition Between Water-Water Hydrogen bonds and Water-pi Bonds in Pyrene-Water Cluster Anions
Authors: Salzmann Heinrich , Rasmussen Anne , Eaves Joel , WEBER J. Mathias
Published: January 2024

We present infrared spectra and density functional theory calculations of hydrated pyrene anion clusters with up to four water molecules. The experimental spectra were acquired using infrared Ar messenger photodissociation spectroscopy. Water molecules form clusters on the surface of the pyrene, forming hydrogen bonds with the -system. The structures of the water clusters and their interaction with the system are encoded in the OH stretching vibrational modes. We find that the interactions between water molecules are stronger than between water molecules and the -system. While all clusters show multiple conformers, three- and four-membered rings are the lowest energy structures in the larger hydrates.
Electrodeposition of tuneable Cu-Ag nanostructures in a deep eutectic solvent
Authors: Plaza-Mayoral Elena , Dalby Kim Nicole , Falsig Hanne , Chorkendorff Ib , Sebastian-Pascual Paula , Escudero-Escribano Maria
Published: January 2024

The green transition requires the preparation of clean, inexpensive, and sustainable strategies to prepare controllable bimetallic and multimetallic nanostructures. Cu-Ag nanostructures, for example, are promising bimetallic catalysts for different electrocatalytic reactions such as carbon monoxide and carbon dioxide reduction. In this work, we present the one-step preparation method of electrodeposited Cu-Ag with tunable composition and morphology from choline chloride plus urea deep eutectic solvent (DES), a non-toxic and green DES. We have assessed how different electrodeposition parameters affect the morphology and composition of our nanostructures. We combine electrochemical methods with ex-situ scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) to characterize the nanostructures. We have estimated the electrochemically active surface area (ECSA) and roughness factor (R) by lead underpotential deposition (UPD). The copper/silver ratio in the electrodeposited nanostructures is highly sensitive to the applied potential, bath composition, and loading. We observed that silver-rich nanostructures were less adherent whereas the increase in copper content led to more stable and homogenous films with disperse rounded nanostructures with tiny spikes. These spikes were more stable when the deposition rate was fast enough and the molar ratio of Cu and Ag no greater than approximately two to one.
Rational design of metal-organic cages to increase the number of components via dihedral angle control
Authors: Abe Tsukasa , Takeuchi Keisuke , Hiraoka Shuichi
Published: January 2024

The general principles of discrete, large self-assemblies composed of numerous components are not unveiled and the artificial formation of such entities is a challenging topic. In metal-organic cages, design strategies for tuning the coordination directions in multitopic ligands by the bend and twist angles were previously developed to solve this problem. In this study, the importance of remote geometric communications between components is emphasized, realizing several types of metal-organic assemblies based on dihedral angle control in multitopic ligands although they have the same coordination directions. Self-assembly of a tritopic ligand with dihedral angles θ = 36° and a cis-protected Pd(II) ion afforded M9L6 and M12L8 cages as kinetic and thermodynamic products, respectively, whereas an M12L8 sheet was formed when θ = 90°. Geometric analyses of strains in the subcomponent rings revealed that remote geometric communications among neighboring multitopic ligands through coordination bonds are key for large assemblies.
Monte Carlo simulations of water pollutant adsorption at parts-per-billion concentration: A study on 1,4-dioxane
Authors: Sharlin Samiha , Lozano Rodrigo , Josephson Tyler R.
Published: January 2024

1,4-dioxane is an emerging water pollutant with high production volumes and a probable human carcinogen. The incompetence of conventional treatment processes demonstrates a need for an effective remediation strategy. Crystalline nanoporous materials are cost-effective adsorbents due to their high capacity and selective separation in mixtures. This study explores the potency of all-silica zeolites. These zeolites are highly hydrophobic and can preferentially adsorb nonpolar molecules from mixtures. We investigated six zeolite frameworks (BEA, EUO, FER, IFR, MFI, MOR) using Monte Carlo simulations in the Gibbs ensemble. The simulations indicate high selectivity by FER and EUO, especially at low pressures, which we attribute to pore sizes and shapes with more affinity to 1,4-dioxane. We also demonstrate a Monte Carlo simulation workflow using gauge cells to model the adsorption of an aqueous solution of 1,4-dioxane at 0.35 ppb concentration. We quantify 1,4-dioxane and water coadsorption and observe selectivities ranging from 1.1 x 10^5 in MOR to 8.7 x 10^6 in FER. We also demonstrate that 1,4-dioxane is in the infinite dilution regime in both the aqueous and adsorbed phases at this concentration. This simulation technique can be extended to model other emerging water contaminants such as per- and polyfluoroalkyl substances (PFAS), chlorates, and others, which are also found in extremely low concentrations.