bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS KOMPETENSI PEDAGOGIK GURU DALAM PEMBELAJARAN TEMATIK KELAS III B DAN III C DI SDN X JAKARTA BARAT
Authors: Kusumawardani Siska
Published: September 2024

This research only focuses on teacher pedagogical competence in teaching thematic for third grade III B and III C of SDN X West Jakarta. Pedagogic competence is an ability that must be mastered by teachers in carrying out their professional duties, namely in managing, implementing, and evaluating learning. The aims of this study were to: (1) describe the pedagogic competence of teachers in thematic learning for class III B and III C, (2) describe the inhibiting factors of teachers in implementing thematic learning for class III B and III C, and (3) describe the supporting factors for teachers in the implementation of thematic learning class III B and III C. The method used is qualitative research using a qualitative descriptive approach. Data collection techniques were carried out by means of observation, interviews and documentation. Data analysis techniques are carried out by collecting data in the field, data reduction, data presentation, and drawing conclusions. The validity of the data is carried out through credibility tests, namely source triangulation and member checking. The results of this study indicate that the pedagogical competence of class III B and III C teachers in the implementation of thematic learning in class as a whole is good. Teachers can understand the characteristics of students, are able to master learning theory and learning principles, teachers carry out curriculum development and educational learning activities, develop students' potential, and carry out assessments and evaluations. From the results, the percentage of teacher competency obtained is still categorized as low, namely 65%. Teachers need to improve the quality of their pedagogical competence in order to become professional teachers. Teachers are expected to be able to maintain and improve their pedagogical competencies so that thematic learning can run optimally.
EKSPLORASI KESIAPAN DAN HAMBATAN GURU DALAM IMPLEMENTASI KURIKULUM MERDEKA DI SD NEGERI PLAOSAN 1
Authors: Nainggolan Elsima , Annisa Meidia , Sholihah Dinda , Alfarizi Fazlur Rahman , Oktaviani Nur , Lestari Lestari , Susanti Maria Melani Ika , Fianto Zeva Adi
Published: September 2024

Kurikulum Merdeka telah menjadi titik fokus baru dalam sistem pendidikan Indonesia dan menimbulkan tantangan signifikan bagi para guru terkhusus di tingkat Sekolah Dasar. Penelitian  ini bertujuan untuk mengeksplorasi kesiapan dan hambatan yang dihadapi oleh guru di SD Negeri Plaosan 1 dalam mengimplementasikan Kurikulum Merdeka dalam pembelajaran. Metode penelitian yang digunakan adalah deskripsi kuantitatif dengan teknik pengumpulan data berupa angket, dan wawancara. Analisis data menggunakan statistik deskriptif dengan mengacu pada kriteria penilaian ideal. Sampel penelitian terdiri dari guru kelas, guru olahraga, dan guru agama yang berjumlah 10 orang dengan teknik pengambilan sampel adalah purposive sampling. Hasil temuan menyatakan bahwa rata-rata dari kesiapan guru dalam penerapan Kurikulum Merdeka adalah 81.41 (sangat baik) sedangkan rata-rata dari hambatan guru dalam penerapan Kurikulum Merdeka adalah 70.48 (baik). Dalam hal ini, guru sudah dikatakan siap dalam menerapkan Kurikulum Merdeka namun setiap guru mengalami hambatan yang berbeda-beda dalam praktiknya. Kurikulum Merdeka dapat dijadikan salah satu solusi terbaik dalam meningkatkan pendidikan dengan melibatkan kerjasama yang baik antara pemangku kebijakan, peningkatan keterampilan guru dalam merencanakan dan menyusun perangkat pembelajaran dan pelaksanaan asesmen, serta penyediaan fasilitas yang memadai.
Climate Research Contributions in Occupational Safety
Authors: Pereira Fernanda de Carvalho , Denizot Alexandre Elias Ribeiro , Bonina Noemi , Dias João Terêncio , Cunha Myrna da , Santos AlexandreAlexandre Martinez
Published: September 2024

Objective: This work aimed to identify the additional contributions of the Climate Survey to the Safety area of some companies.
 
Theoretical reference: As a theoretical framework, different questionnaire models were used to research the perceptions of the workforce.
 
Method: A case study was used as a method, whose data collection instrument was a climate questionnaire, constructed from bibliographic research in the ISI Web of Science and Scopus databases, applied to a universe of 455 workers of an offshore organization.
 
Results and Conclusion: Despite being strongly linked to the company culture, the Climate Survey revealed factors underlying risk behaviors, the scope and systemic nature of failures, proving to be an effective diagnostic tool for safety management.
 
Search Implications:  This study found that cost reduction policies and focus on financial results tend to reduce organizational investments, leading many companies to adopt reactive management models. And by restricting safety actions to the occurrence of accidents, they ignore unrecorded risks, their scope, latent causes and their systemic nature.
 
Originality/value: This case study is original and assumes an inestimable value due to its scope.
Study of quality indicators of gravure imprints obtained with fluorescent ink
Authors:   Lodz University ofTechnology, Lodz, Poland, Havenko Svitlana ,   Lviv Polytechnic NationalUniversity, Lviv, Ukraine, Czubak Jerzy ,   Ukrainian Academy of Printing, Lviv, Ukraine, Labetska Marta ,   Lviv Polytechnic NationalUniversity, Lviv, Ukraine, Kochubei Victoria ,   Lviv Polytechnic NationalUniversity, Lviv, Ukraine
Published: September 2024

The peculiarities of the decoration of gravure imprints on cardboard using fluorescent inks are considered. The influence of the number of fluorescent impurities added to gravure printing ink on the optical indicators of printed image quality, particularly optical density, and gloss, is investigated. Increasing the number of fluorescent impurities added to the ink from 10 to 30% helps to increase the gloss on imprints from 2 to 15 units. Conducted thermogravimetric studies show the resistance of fluorescent imprints to the influence of temperatures during drying in the printing process. The topography of the surface of the substrates and its influence on the quality of imprints is studied. Conducted electron microscopic studies of imprints obtained with inks with different amounts of fluorescent impurities show their uniform distribution on the surface of the substrate. Studies of the fluorescence spectra of the ink and the imprints formed by it confirm the phenomenon of an increase in the intensity of the glow of printed images. The studies confirm the well-known influence of substrate roughness on the smoothness of gravure imprints. It is established that the absence of significant macro irregularities on the surface of Koppargloss FBB cardboard is due to the presence of two coating layers. Analysis of the surface profiles of FBB cardboard shows that its roughness parameter (Ra = 0.424 μm) is three times smaller compared to Incada Silk С GC1 cardboard (the roughness parameter Ra = 1.28 μm), with a single-layer coating. Such a pattern is also preserved on the imprints, which is reflected in their quality accordingly. Studies show that for imprints on GC1 cardboard, the average ΔE value is 2.23, for imprints on FBB cardboard, the average ΔE value is 3.71, which is due to the presence of double coating. The factors that can influence the process of fluorescence of printed images are outlined. The technological characteristics of inks for gravure printing on packaging are described.
PERANCANGAN GAME SIMULASI “INCUS” BERBASIS WEB
Authors: Goutama Leonardo , Haris Darius Andana , Pragantha Jeanny
Published: September 2024

“Incus” adalah game berbasis web menggunakan HTML5 dengan genre life simulation yang dirancang dengan Unity. Game ini mempunyai empat ruangan yang dapat dikunjungi. Masing- masing memiliki fitur yang unik. Asset yang digunakan game ini didapatkan dari internet, Unity asset store, atau meng-edit asset gratis dengan menggunakan Adobe Photoshop. Game ini mempunyai tujuan untuk mengelola toko dan menjual produk hingga semua upgrade dibeli. Setelah itu, pemain tetap dapat memainkan game tersebut tampa ada batasan. Untuk tahapan perancangan menggunakan metode Game Design. Untuk pengujian akan menggunakan blackbox testing.
ANALISIS ALIRAN UDARA PADA RUANG TOILET DENGAN MENGGUNAKAN METODE COMPUTATIONAL FLUID DYNAMICS (CFD)
Authors: Tan Robin , Hie Glorianus Jonathan , Sumita Vito Cristianto Niti , Marcellio Ricco , Verdianza Crispin , Laurenzo Michael , Darmawan Steven
Published: September 2024

Ruang-ruang pada suatu bangunan yang mencapai kenyamanan termal dapat meningkatan produktivitas dari kinerja pengguna itu sendiri. Bangunan yang mencapai kenyamanan termal itu dapat membuat ruang aktivitas yang baik kepada orang-orang yang menggunakannya agar terhindar dari efek iklim luar yang tidak baik, sehingga kegiatan yang dilakukan dalam bangunan dapat dilakukan dengan maksimal. Infiltrasi udara dengan sistem ventilasi alami digunakan agar ruangan dalam bangunan dapat mencapai kenyamanan termal yang baik (Hamzah, 2014). Tujuan dari penelitian ini dalah menghasilkan model 3 dimensi dari ruang toilet di Universitas Tarumanagara dan melakukan analisis CFD terhadap sirkulasi udara dalam ruang toilet untuk dapat mengetahui kondisi aliran udara yang lebih baik. Konfigurasi yang digunakan berupa 1 buah inlet fan dan 2 buah jendela sebagai inlet yang memiliki variasi kecepatan udara sebesar 3,03975 m/s dan 0,84125 m/s serta temperatur sebesar 29,875°C dan 29,95°C. Selain itu terdapat 1 buah outlet fan sebagai oulet dengan kecepatan 0,0856 m/s dan temperatur sebesar 29,75°C. Pada hasil simulasi ini didapatkan hasil profil distribusi, maka dapat disimpulkan bahwa konfigurasi dengan inlet dan outlet pada ruangan toilet sudah sesuai dengan standar ASHRAE 62.1 tahun 2019. Hal ini bisa dilihat pada hasil simulasi dalam ruangan toilet yang berkisar antara 0 m/s sampai 1,28 m/s. Berdasarkan hasil simulasi didapatkan hasil konfigurasi yang paling baik sesuai dengan standar ASHRAE tahun 2019 adalah konfigurasi pada plane 2 dan 3, berupa kecepatan udara pada ruangan toilet yang sebesar 0 m/s sampai 1,28 m/s. Pada konfigurasi ini dapat diketahui temperatur ruangan antara 29°C sampai 30°C dan tekanan yang dihasilnya sebesar 99,9 Pa.
MINIMASI WASTE PADA PROSES PRODUKSI DENGAN METODE LEAN SIXSIGMA STUDI KASUS DI PT. AH
Authors: Ahmad Ahmad , KS Iphov , Sukania I Wayan , Wesley  , Calysta May , Rizkika Adelia Dwi
Published: September 2024

Perusahaan ini adalah perusahaan manufaktur yang memproduksi genteng dan produk beton pra-cetak lainnya. Dalam memproduksi genteng masih ditemukan terjadinya waste yang perlu dihilangkan untuk meningkatkan efisiensi. Tujuan penelitian ini dilakukan untuk mengurangi waste yang ditemukan pada lini produksi. Metode Lean Six Sigma digunakan untuk melakukan idenfitikasi waste yang terjadi pada produksi genteng, menganalisa penyebab terjadinya waste tersebut dan memberikan usulan perbaikan untuk mengurangi terjadinya waste. Berdasarkan penelitian ditemukan waste yang paling mempengaruhi adalah overproduction yang terjadi karena perusahaan memproduksi genteng untuk memenuhi safety stock, defect product, inventory, dan keterlambatan pengiriman. Untuk mengurangi adanya defect overproduction dan inventory digunakan metode material requirement planning, dan untuk mengurangi defect dilakukan pembuatan checksheet dan mengurangi defect product. Dari hasil analisa diperoleh nilai process cycle efficiency sebesar 31,749% dan nilai sigma sebesar 3,899.
Back Matters Kiwari Vol. 3 No. 3
Authors: Irena Lydia
Published: September 2024

Back Matters Kiwari Vol. 3 No. 3
Pemanfaatan Instagram sebagai Media Promosi BogorFest 2023
Authors: Maulidyarto Khoiron Eka , Gafar Yoedtadi Moehammad
Published: September 2024

The Bogor Regency Government is once again organizing BogorFest, the largest annual event that features various exciting activities such as exhibitions and music concerts. The Bogor Regency Government promote this event through Instagram with various content uploads. Instagram is used in promoting BogorFest 2023 because it has various features and conveniences, making it suitable for promotional purposes. The purpose of promoting BogorFest on Instagram is to make the public aware of the development results in the Bogor Regency and also to demonstrate economic recovery post the Covid-19 pandemic. This research employs a qualitative descriptive approach with a case study method. The data collection techniques utilized are interviews and observations. The subjects in this study are the Head of Public Information Section, Instagram Admin of Bogor Regency, and followers of Bogor Regency's Instagram. This study aims to understand the strategies used in promoting BogorFest 2023 on Instagram by linking the researched phenomenon with the concept of government social media management, POST. The results is, Diskominfo Kabupaten Bogor has implemented these four points effectively. The strategy used to promote BogorFest 2023 involves using the tagline “Semua Ada di BogorFest” and “Enjoy BogorFest. Unfortunately, Diskominfo Kabupaten Bogor still prioritizes quantity over the quality of content, resulting in many shortcomings in the promotional content for BogorFest 2023 on Instagram.
Pemerintah Kabupaten Bogor kembali mengadakan BogorFest, sebuah event tahunan terbesar yang menghadirkan berbagai macam kegiatan menarik seperti pemeran dan konser musik. Kegiatan ini dipromosikan oleh Pemerintah Kabupaten Bogor melalui Instagram dengan berbagai unggahan kontennya. Instagram dipakai dalam promosi BogorFest 2023 karena memiliki berbagai fitur dan kemjudahan, sehingga cocok untuk media promosi. Tujuan dari promosi BogorFest di Instagram adalah agar masyarakat mengetahui hasil pembangunan yang ada di Kabupaten Bogor dan juga menunjukkan pemulihan ekonomi pasca pandemi Covid-19. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan metode studi kasus. Teknik pengumpulan data yang dipakai adalah wawancara dan observasi. Adapun subjek dalam penelitian ini adalah Kepala Seksi Informasi Publik, Admin Instagram Kabupaten Bogor, dan pengikut Instagram Kabupaten Bogor. Penelitian ini bertujuan untuk mengetahui strategi yang dipakai dalam  promosi BogorFest 2023 di Instagram dengan mengaitkan fenomena yang diteliti dengan konsep pengelolaan media sosial pemerintah, POST. Hasilnya adalah Diskominfo Kabupaten Bogor sudah mengimplementasikan keempat poin tersebut secara baik. Strategi yang dipakai dalam mempromosikan BogorFest 2023 adalah menggunakan tagline “Semua Ada di BogorFest” dan “Enjoy BogorFest.” Hasil penelitian juga menunjukkan Diskominfo Kabupaten Bogor masih lebih mementingkan kuantitas dibanding kualitas konten, sehingga masih banyak kekurangan dalam konten promosi BogorFest 2023 di Instagram.
Media Sosial Instagram sebagai Wadah Kegiatan Promosi Band Kelana
Authors: Daffa Nadhir Asyrof Muhammad , Rusdi Farid
Published: September 2024

Kelana Band is a band that was formed in 2021, which do promotional activities via Instagram or without being tied to label. This thesis raises the issue of how the newly developed Kelana band uses Instagram to carry out its promotional activities, as well as what types of content are dominant. in carrying out promotional activities for the Kelana band on the band's Instagram page. This research uses marketing communication theory as its basis, this research uses descriptive qualitative methods, and has results, namely in carrying out activities to promote the Kelana band on social media. Instagram has two dominant types of content, namely promotional type content and entertainment type content. The conclusion of this research is Kelana band carries out promotional activities via Instagram without using all the pillar content, because the initial purpose of creating Instagram is as promotional and entertainment medium only, so for other types of content such as education and campaign content there is no application of pillar content to carry out promotional activities for Kelana band, rather than that, a band that is just developing, this can be the beginning where the work that has been made becomes a platform for other people to finally know about the work that has been made.
Band Kelana adalah band yang terbentuk pada tahun 2021, yang melakukan kegiatan promosinya melalui Instagram secara sendiri atau tidak terikat label, skripsi ini mengangkat isu tentang bagaimana band Kelana yang baru berkembang memanfaatkan media sosial Instagram dalam melakukan kegiatan promosinya, serta jenis konten apa saja yang dominan dalam melakukan kegiatan promosi band Kelana di dalam laman Instagram band tersebut. Penelitian ini menggunakan Teori Komunikasi Pemasaran sebagai landasannya, penelitian ini menggunakan metode kualitatif deskriptif, serta mempunyai hasil yaitu dalam melakukan kegiatan mempromosikan band Kelana di media sosial Instagram mempunyai dua jenis konten yang dominan yaitu konten berjenis promosi dan konten berjenis entertain, kesimpulan dari penelitian ini yaitu band Kelana melakukan kegiatan promosi melalui Instagram tidak menggunakan semua konten pilar, karena yang menjadi tujuan awal terbuatnya Instagram ini yaitu sebagai media promosi dan entertain saja, sehingga untuk jenis konten yang lain seperti edukasi dan konten kampanye tidak ada penerapan konten pilar untuk melakukan kegiatan promosi bagi band Kelana, daripada itu, band yang baru berkembang, ini dapat menjadi awalan dimana karya yang sudah di buat jadi mendapatkan wadah untuk orang-orang lain akhirnya mengetahui karya yang sudah dibuat tersebut, sehingga band Kelana hanya perlu konsisten untuk terus membuat karya musiknya, sehingga masyarakat dapat mengenalnya.
Relationship between personality, aggressiveness, emotion, and academic performance in the Spanish National Police Academy: implications in the selection processes

Authors: Barea Vera Alberto , Gordillo León Fernando , Pérez Nieto Miguel Ángel
Published: September 2024

Introducción. En el contexto educativo, factores emocionales y de personalidad se han relacionado con el rendimiento académico y la calidad de vida de los estudiantes; sin embargo, pocos estudios han profundizado en esta relación en contextos educativos donde los alumnos tienen un nivel alto de exigencia y competitividad como es el caso del alumnado de la Escuela Nacional de Policía.
Método. Con el fin de profundizar en esta cuestión, se llevó a cabo una investigación en la que participaron 242 estudiantes que cumplimentaron tres cuestionarios que medían agresividad (AQ), afecto (PANAS) y personalidad (EPQ-R). Igualmente, se obtuvieron las calificaciones logradas por los sujetos de la muestra al finalizar la formación policial con el objetivo de medir el rendimiento académico.
Resultados. Los resultados mostraron una relación inversa entre las dimensiones de personalidad, psicoticismo y conformidad, con el rendimiento académico, incluso cuando los niveles promedio del grupo en estas variables fueron bajos. Además, esta relación se mantuvo en las materias teóricas, pero no en las que implicaban prácticas de contenido físico. Por último, las mujeres mostraron mayores niveles de ira que los hombres, y los hombres mayores niveles en agresividad física que las mujeres.
Discusión y conclusión. Estos datos permiten establecer un perfil psicológico de los estudiantes de la escuela de policía que podría ayudar a optimizar los procesos de selección, en una profesión donde se deben gestionar situaciones con alto impacto emocional.
Adaptación española y evidencias de validez de la Escala de Homonegatividad Moderna con docentes en formación
Authors: García Berbén Ana Belén , Álvarez-Bernardo Gloria , Lara-Garrido Adrián Salvador , Ruiz-Cecilia Raúl , Guijarro Ojeda Juan Ramón
Published: September 2024

Introducción.  El avance legislativo en el reconocimiento de derechos de las personas homosexuales en España no ha supuesto que las aulas dejen de ser espacios poco seguros para el alumnado homosexual. Los y las docentes son agentes claves, sin embargo, son escasas las investigaciones que analizan e intervienen en el prejuicio sexual sutil de docentes hacia las personas homosexuales. El objetivo de este estudio es adaptar y aportar evidencias de validez y fiabilidad de la versión española de la Escala de Homonegatividad Moderna con docentes en formación.
 
Método. 772 docentes en formación inicial de la Universidad de Granada participan en un estudio con diseño instrumental. Ofrecen información de características sociodemográficas y responden tanto a la Escala de Homonegatividad Moderna, como dos escalas que miden el prejuicio hacia personas trans.
Resultados. La matriz de datos fue adecuada para el AFC con correcciones robustas por su alejamiento de la normalidad de las dos subescalas, se encontró un buen ajuste de los datos al modelo. El alpha de Cronbach, el índice de fiabilidad compuesta y de homogeneidad de los ítems arrojaron evidencias de buena consistencia interna. La VME mostró un valor adecuado y las correlaciones con constructos relacionados fueron positivas, significativas y menores que la raíz cuadrada de la VME.
Discusión y conclusiones.  La versión española de la Escala de Homonegatividad Moderna permite medir el prejuicio sexual hacia personas homosexuales de docentes en formación y muestra más evidencias de validez para el modelo estructural de 11 indicadores que para el de 12 indicadores, con una adecuada consistencia interna y validez externa: convergente y discriminante.
Applying the Dual Deficit Model: Do Students’ Test Preparation Strategies Moderate the Relationship between Test Anxiety and Students’ Academic Achievement?

Authors: Nwosu Kingsley Chinaza , Onyemaechi Edeh Moses , Nkechi Ofojebe Edna , Cassim Hasina
Published: September 2024

Introduction.  Understanding the mechanism through which test anxiety impacts students’ learning outcomes is critical to its management. Test preparation strategies are associated with test confidence and could also affect students’ academic achievement. However, previous studies have underplayed the role students’ test preparation strategies could play in the associations between test anxiety and their academic achievement.  Hence, the moderating roles of students’ test preparation strategies on the relationship between test anxiety and students' academic achievement were explained by framing our study within the dual deficit model.
Method.  The cross-sectional research design was adopted, and 248 secondary school students constituted the sample. 
Results. The major findings revealed significant negative relationships between the worry and the cognitive test anxiety subscales and students’ academic achievement scores. Furthermore, there was a joint significant negative relationship between the components of test anxiety and students’ academic achievement, whereas students’ test preparation strategies was not a significant moderator.
Discussion and Conclusion.  Our findings indicate that learning strategies deficits may not significantly impact the effects of attentional-cognitive deficits on students’ academic achievement.  It is concluded that cognitive-attentional deficit could defy strengths that may come from test preparation strategies.
Propiedades Psicométricas de las Subescalas de Inatención e Hiperactividad/Impulsividad de la VADTRS para Evaluación del TDAH en Niños y Adolescentes en Chile

Authors: Gatica Ferrero Sergio , Durán-Irribarra Daniela
Published: September 2024

Introducción.  Este estudio busca evaluar psicométricamente las subescalas de inatención e hiperactividad/impulsividad de la Vanderbilt ADHD Teacher Rating Scale (VADTRS) para el diagnóstico del Trastorno por Déficit de Atención con Hiperactividad (TDAH) en niños y adolescentes en Chile.
Método.  La muestra incluyó a 353 estudiantes de 2° de primaria a 3° de secundaria de tres escuelas en la provincia de Biobío, seleccionados mediante muestreo no probabilístico por conveniencia. La VADTRS es un cuestionario de observación conductual con 18 ítems que evalúan síntomas de inatención e hiperactividad/impulsividad. Se realizaron análisis estadísticos descriptivos, se evaluó la validez de contenido y se calculó la consistencia interna. Además, se llevó a cabo un análisis factorial confirmatorio para validar la estructura de la escala.
Resultados.  Los resultados mostraron una alta concordancia inter-observador (v de Aiken = .96) y alta fiabilidad en la escala total (ω = .97) y subescalas de inatención (ω = .96) e hiperactividad/impulsividad (ω = .94). El análisis factorial confirmatorio validó la estructura de dos factores correspondientes a los síntomas del TDAH.
Discusión y conclusiones.  La VADTRS demostró ser una herramienta confiable y válida para detectar el TDAH en estudiantes chilenos. Su fácil aplicación la convierte en una opción viable para identificar a quienes puedan enfrentar esta condición, permitiendo una intervención temprana y apoyo adecuado para mejorar su adaptación y desarrollo académico. La validación de esta escala es relevante, dado que la investigación sobre la detección del TDAH en Chile es limitada, y este estudio contribuye al campo de la salud mental infantil y adolescente. Implementar la VADTRS en el contexto educativo podría mejorar la detección temprana y proporcionar una atención más efectiva a aquellos estudiantes que presenten este trastorno, impactando positivamente en su bienestar y rendimiento académico. En conclusión, este estudio aporta conocimientos valiosos para la práctica clínica y la investigación en el área del TDAH en Chile.
Analisis Putusan Pengadilan dalam Perkara Tindak Pidana Pencemaran Udara
Authors: Sopiani Susi
Published: September 2024

Air pollution is one part of physical environmental pollution. Air pollution according to the Government Regulation on air pollution control is the entry or introduction of substances, energy, and/or other components into ambient air by human activities, so that the quality of ambient air decreases to a certain level that causes ambient air to be unable to fulfill its function. The research method used is to use a type of normative legal research method, by examining library materials or secondary data which include primary legal materials, secondary legal materials and tertiary legal materials using Decision Number 68/Pdt.G/LH/2022/PN Rap. The results of the study, namely the lawsuit was rejected by the Court and the impact was air pollution, namely respiratory disorders, cardiovascular disease, impaired fetal development, decreased lung function, and chronic diseases. Conclusion Air is very important because it provides oxygen and other gases that are essential for all life on earth. Air pollution or contamination is the introduction of other components into the air, either by human activities directly or indirectly or due to natural processes. The impacts of this pollution include respiratory disorders, cardiovascular disease, impaired fetal development, decreased lung function, and chronic diseases. Suggestions Palm oil mills need to adopt more effective pollution control technologies to reduce emissions of hazardous materials into the air. Local governments and environmental regulatory agencies must ensure that palm oil mills comply with all applicable environmental regulations and standards. Local communities must be empowered and educated about their rights and how to advocate for a healthy environment.
Leveraging Machine Learning to Improve Adaptive Primitive-Based Motion Planning
Authors: Choi Kevin S. , Goddard Zachary C. , Deal Samuel J. , Mazumdar Anirban , Williams Kyle
Published: September 2024

This paper introduces a new approach for adding replanning capabilities to the maneuver automaton. We call this approach “maneuver interruption.” Maneuver interruption enables replanning by identifying maneuver segments that are dynamically similar to the current vehicle state. As a result, the vehicle can exit a maneuver if new information emerges or the environment changes. We use machine learning to enhance the performance of maneuver interruption. Specifically, we examine how supervised learning can predict dynamic similarity and utilize the learned network to enable maneuver interruption. A variety of models are compared for their ability to quantify the feasibility of a maneuver-to-maneuver transition. The multilayer perceptron is found to be the most effective at this task and was therefore selected for generating maneuver-to-maneuver transitions for replanning. Additionally, we use Monte Carlo methods and pruning to reduce the transition library size by an order of magnitude with minimal loss in performance. We test learning-enhanced maneuver interruption on obstacle evasion tasks with a medium-fidelity ZOHD Drift flight dynamics model. On randomly generated obstacle fields, maneuver interruption is demonstrated to enable longer collision-free flights at a minor cost to control performance.
Temperature Effect on the Properties and Response of Composite Materials and Plates
Authors: Birman Victor
Published: September 2024

The paper illustrates the effect of temperature on composite material properties and its influence on the response of composite plates. Two composites considered include laminae with uniaxially oriented and with in-plane randomly oriented fibers. Analytical solutions are presented for a uniformly heated large-aspect-ratio plate deforming into a cylindrical surface. The solutions are demonstrated for thermal buckling and natural frequencies for the cases of controlled loading and controlled displacements. Micromechanical residual and lifetime thermally induced stresses at the interface of fibers and matrix are assessed to predict a possible onset of local damage after the curing and during lifetime. The material considered in numerical examples consists of silicon carbide fibers and a titanium alloy matrix. The moduli of elasticity and shear as well as the coefficients of thermal expansion of this composite are significantly affected by temperature. The thermally induced microscopic radial stress at the fiber–matrix interface is high, so it should be monitored in silicon fiber titanium matrix composites to avoid the onset of local damage. In conclusion, accounting for the effect of temperature on material properties is highly desirable since it produces more accurate solution than those utilizing the properties at the room temperature.
Mechanical Shock Wave Suppression Structure in Hold-Down and Release Apparatus of Spacecraft
Authors: Yang Yan , Liu Wei , Zhou Hao , Yang Jianzhong , Wang Xianping , Liu Yongquan
Published: September 2024

A lightweight and compact structural solution for mechanical shock suppression in spacecraft, such as the hold-down and release apparatus of satellites, is a critical and thorny issue. In this work, a ring-shaped structure is introduced to isolate mechanical waves within cylindrical shells. The underlying mechanism is that the ring-shaped structure undergoes different forms of deformation to counteract different modes of incident waves. A subwavelength Mn-Cu alloy ring is designed as a shock wave barrier in a typical spacecraft hold-down and release apparatus structure with multimodal wave excitation. We experimentally reveal that the Mn-Cu alloy ring reduces the peak value of the acceleration frequency response by 53.4% within a wide frequency range from 1 to 10 kHz. Meanwhile, in the time domain, the instantaneous acceleration peak can be weakened by 37.9%. This work provides a new strategy for shock control of shell structures in aerospace engineering and related fields.
Cytologic diagnosis and differential diagnosis of histiocytic signet ring cells in effusion specimens
Authors: Elahi Morvarid , Lam Hansen , Adams Christina , Li Qing Kay
Published: September 2024

Objective:

Benign histiocytic proliferation in effusion specimens can be found in a variety of diseases such as rheumatoid arthritis, systemic lupus erythematosus, microorganism infections, trauma, reactive eosinophilic pleuritis, and others. In addition, nodular histiocytic/mesothelial hyperplasia is another well-recognized rare cause. The previous studies have shown that proliferative histiocytes have raisinoid nuclei and abundant eosinophilic granular cytoplasm and can be confused with malignant lesions, especially metastatic carcinomas. In this study, we evaluated the cytomorphology of benign histiocytes, discussed the diagnosis and differential diagnosis, and the clinical significance of histiocytic signet ring cells in effusion cytology.

Material and Methods:

Seven hundred and fifty-five benign effusion cases (433 pleural effusions and 322 abdominal fluids) were found over 1 year. Among benign cases, 35 cases (28 pleural effusions and seven abdominal fluids) were included with findings of dominantly histiocytic signet ring cell morphology as well as immunohistochemical (IHC) stains. The clinical findings were also correlated.

Results:

In contrast to the well-documented cytomorphology of raisinoid nuclei and eosinophilic cytoplasm of proliferative histiocytes in previous studies, we find that these cells predominately presented as signet ring cell morphology with clear cytoplasm. The most characteristic findings of benign histiocytes in pleural effusions are: (1) cells are arranged in sheets and/or scattered individual cells, but no two- or three-dimensional cell clusters; (2) cells are intermediate in size and with normal N/C ratio; (3) cells have eccentric located nuclei and abundant clear cytoplasm, giving signet ring cell appearance; (4) nuclei have fine granular chromatin pattern, no hyperchromia or coarse chromatin pattern, no nuclear atypia; and (5) immunohistochemical (IHC) stains demonstrate a strongly positivity for macrophage-histiocyte lineage marker CD68, but negativity for epithelial markers and mesothelial markers. Clinically, these patients do not demonstrate nodularity or lesions in the mesothelial lining of serous cavities.

Conclusion:

Our study provides a detailed characterization of benign histiocytic signet ring cells in effusion cytology. The differential diagnosis of histiocytic signet ring cells is broad. The most important differential diagnoses are metastatic adenocarcinoma and epithelioid signet ring cell mesothelioma. The accurate diagnosis is critical for the appropriate clinical management of the patient. Cytopathologists should be aware of the diagnostic pitfalls of benign histiocytic signet ring cells in effusion samples in daily practice.
Mathematical Model of an Autonomous Object
Authors: Иванова С.М. , Ильиченкова З.В. , Буквич А.А.
Published: September 2024

В статье рассматривается проблема использования нейронных сетей для выбора оптимального пути автономного транспортного объекта в рамках проектирования системы управления техническими объектами. Используются статические и динамически получаемые данные о среде функционирования. Предлагается метод, который позволяет учитывать ограничения на движение: рельеф местности, вероятные статичные и динамические препятствия, и выбрать оптимальный путь с учетом реальных габаритов автономного объекта. Предложен энергетический функционал, который обеспечивает достижение минимума энергетических затрат на перемещение, при условии безопасности автономного объекта. Построена математическая модель, соответствующая требованиям безопасности и оптимальности движения. Метод позволяет находить решение в реальном времени. Приведена нейронная сеть, обеспечивающая выбор участка движения, и примеры работы алгоритма для различных условий функционирования.

The problem of using neural networks to select the optimal path of an autonomous transport object within the design of a control system for technical objects are discussed in the article. Static and dynamically obtained data about the operating environment are used. A method is proposed that allows one to take into account the restrictions on movement: terrain, probable static and dynamic obstacles - and choose the optimal path, taking into account the real dimensions of an autonomous object. An energy functional is proposed that ensures the achievement of a minimum of energy costs for movement under the condition of the safety of an autonomous object. A mathematical model has been built that meets the requirements of safety and optimal movement. The method allows you to find a solution in real time. A neural network providing the choice of a traffic area is presented. Examples of the algorithm’s operation for various operating conditions are given.
Ensuring Resource Allocation with Hyper-converged Solutions
Authors: Дельцов С.Ю. , Суркова Н.Е. , Куфтинова Н.Г.
Published: September 2024

Гиперконвергенция (объединение ИТ-ресурсов в целостное решение с помощью типовых аппаратных блоков и программно определяемых устройств) стала одним из ведущих направлений в ИТ. В данной статье рассмотрено использование гиперконвергентных систем для виртуализации аппаратных средств, которые, в свою очередь, позволяют наиболее оптимальным образом распределять ресурсы вычислительных систем. Гиперконвергенция позволяет упростить управление IT-структурой: хранилищем, вычислениями, сетями, виртуализацией. Все эти задачи выполняются на одном оборудовании, что позволяет сократить время развертывания структуры, делает ее обслуживание более легким путем централизованного управления виртуальными средами через единый интерфейс и снижает трудоемкость рабочего процесса. Процессы приобретения, развертывания, поддержки и управления гиперконвергентной системой максимально оптимизированы, одним из главных ее преимуществ является простота масштабирования на основе блоков, за счет чего при необходимости система легко расширяется. В статье выполнен обзор системы виртуализации для обеспечения распределения ресурсов на основе гиперконвергентных решений, рассмотрены схемы работы такой системы, приведены примеры ее реализации.

Hyperconversion is the integration of information technology resources into a complete solution using standard hardware blocks and software-defi ned devices. hyperconversion has become one of the leading areas in IT. This article will discuss the use of hyperconverged systems for hardware virtualization, which will allow optimal allocation of computing resources. Hyper-convergence is used to simplify the management of the IT structure: storage, computing, networking, virtualization – all these tasks are performed on the same equipment, resulting in reduced deployment time of the structure and making it easier to maintain through centralized management of virtual environments through a single interface that will reduce the complexity of the workflow. The processes of acquiring, deploying and maintaining and managing a hyperconvergent system are optimized as much as possible, so one of the main advantages is simplicity of scaling based on blocks, and if necessary, the system can be easily expanded. The article will provide an overview of the virtualization system using hyperconverged solutions, consider the operation schemes, and provide examples of the system implementation.
MODELS OF CONSTRUCTION OF INERTIAL NAVIGATION SYSTEM FOR UNMANNED AERIAL VEHICLE
Authors: Набиев Р.Н. , Маммадов А.З.
Published: September 2024

Инерциальная навигация – это система, работающая на основе физических законов, существующих в пространстве независимо от деятельности человека. Обычно инерциальная навигационная система (ИНС) используется для определения положения, скорости и ориентации объекта, движущегося относительно поверхности Земли. Навигационная информация (положение, скорость и ориентация) беспилотного летательного аппарата (БПЛА) необходима для управления его полетом. Благодаря высокой устойчивости ИНС к препятствиям можно обеспечить надежный полет. В статье рассмотрены вопросы, такие как состав, принцип действия, устройство, преимущества и недостатки ИНС и указаны основные причины, обуславливающие важность использования этой системы. Кроме того, в статье предлагается модель инерциальной навигационной системы с оптимизированными параметрами для БПЛА, путем использования фильтра Калмана и внешних неинерциальных навигационных данных для повышения точности навигационной системы.

Inertial navigation is a system that works based on physical laws that exist in space, regardless of human activity. Typically, an inertial navigation system (INS) is used to determine the position, speed, and orientation of an object moving relative to the earth’s surface. The navigation information (position, speed and orientation) of an unmanned aerial vehicle (UAV) is needed to control its flight. Due to the high resistance of the INS to obstacles, a reliable flight can be ensured. The article discusses many issues, such as the composition, principle of operation, design, advantages and disadvantages of INS and indicates the main reasons for the importance of using this system. In addition, the article proposes a model of an inertial navigation system with optimized parameters for a UAV by determining methods for using the Kalman filter and external non-inertial navigation data to improve the accuracy of the navigation system data.
BALLISTIC MISSILES AND SPACECRAFTS PROTECTION
Authors: Спиридонов Ю.А. , Бодрихин Н.Г.
Published: September 2024

Попытки создания систем противоракетной обороны немедленно привели к созданию специалистами радиоэлектронной борьбы разнообразных комплексов средств противодействия ПРО (КПС ПРО). Стоимость этих комплексов составляет доли процента от стоимости систем ПРО, а их эффективность, за все годы существования противостоящих друг другу систем, оценивается как исключительно высокая. Применение КСП ПРО либо не позволяет выделить среди заявленного конгломерата атакующих средств реальных боевых блоков, либо вообще исключает правильное обнаружение атакующих средств. Первые системы КСП ПРО были созданы в СССР и США в конце 50-х–начале 60-х гг. Это были легкие надувные ложные цели, раскрывавшиеся в верхних слоях атмосферы и маскировавшие реальные боевые блоки; другое направление заключалось в нанесении на головные части и боевые блоки специальных радиоотражающих покрытий, затруднявших их обнаружение; еще одно направление заключалось в создании тяжелых ложных целей, соответствующих реальным боевым блокам по всему комплексу контролируемых параметров; важнейшим направлением при реализации КСП ПРО является создание станций активных помех как искажающих якобы «ответный» сигнал, так и создающих мощную шумовую помеху, срывающую работу радиолокационной станции. Как системы ПРО, так и системы КСП ПРО непрерывно совершенствуются, причем создание КСП на два–три порядка дешевле современных средств ПРО.

Attempts to create antimissile defense systems immediately led the experts of radioelectronic warfare to creation of various counteraction complexes of missile defense (KPS missile defense). The cost of these complexes makes percent shares from the cost of missile defense systems, and their efficiency, for all years of the existence, is estimated as exclusively high. Application of KSP missile defense either doesn’t allow to allocate real warheads among the declared conglomerate of attacking means, or generally excludes the correct detection of attacking means. The first systems of KSP missile defense were created in USSR and USA in the late fifties – beginning of the 60th. They represented simple infl atable false targets revealing in an upper atmosphere and masking real warheads; other direction consisted in application of special radio refl ective coverings on head parts and warheads, complicating their detection; one more direction consisted in creation of the heavy false targets with controlled parameters corresponding to real warheads of the whole complex; the major direction at realization of KSP missile defense is creation of active jammers, both distorting a false «response» signal, and creating the powerful noise impact suppressing the radar. Both missile defense systems, and systems of KSP missile defense are continuously improved, and creation of KSP is 2–3 orders cheaper comparing to modern means of missile defense.
AN ATTITUDE ESTIMATION ALGORITHM FOR WSO – UV SPACECRAFT PRECISION POINTING MODE OF OPERATION
Authors: Ивонин А.Н. , Камальдинова Р.А. , Моргунова С.Н. , Соколов В.Н. , Соловьев И.В. , Шатский М.А.
Published: September 2024

Представлен алгоритм оценки ориентации космического аппарата «СПЕКТР-УФ», предназначенный для информационного обеспечения бортового комплекса управления (БКУ) в режиме прецизионной ориентации. В этом режиме БКУ должен обеспечивать наведение космического телескопа Т-170М на исследуемый объект и его постоянную трехосную ориентацию относительно инерциального пространства. При этом стабилизационное отклонение оси визирования космического телескопа от заданного направления не должно превышать ±0,1'' (3σ), угловая скорость стабилизации не должна превышать ±2·10–5 /с. Представленный алгоритм осуществляет комплексную обработку измерительной информации системы датчиков гида космического телескопа Т-170М и гироскопического измерителя вектора угловой скорости Astrix 200 и формирует оценки кватерниона ориентации, вектора угловой скорости и вектора систематических ошибок гироскопов. Поскольку оцениваемый процесс близок к стационарному, для комплексирования используется фильтр Винера с постоянными коэффициентами усиления, значения которых определены в процессе моделирования работы оптимального фильтра Калмана. Для обеспечения наблюдаемости всех линейных комбинаций ошибок гироскопов используется эффективное измерение в левом нуль-пространстве матрицы, задающей направления четырех измерительных осей прибора Astrix 200 в его приборной системе координат. Результаты отработки алгоритма на стенде математического моделирования показывают, что требования по точности наведения оси визирования космического телескопа Т-170М и его стабилизации в заданной ориентации уверенно выполняются.

An attitude estimation algorithm is presented designed to provide the WSO – UV spacecraft attitude and orbit control system (AOCS) with attitude information in precision pointing mode of operation. During this mode AOCS must support space telescope T-170M pointing at the observed object and its constant three-axis orientation with respect to inertial space. Deviation of the optical axis from predetermined direction must not exceed ±0.1'' (3σ) while angular rate of rotation must not exceed ±2·10–5 /s. The presented algorithm combines the measurements of the system of guide star sensors and of the Astrix 200 inertial measurement unit and forms the estimates of attitude quaternion, angular rate vector and vector of gyros biases. The estimated process being almost stationary, the information fusion is accomplished by Wiener Filter with constant gain matrix. The gain matrix elements are determined through simulation of optimal Kalman Filter performance. In order to make all linear combinations of gyros errors observable a null-space measurement is used. Test results obtained with the use of mathematical simulation tools indicate that the requirements concerning the space telescope pointing accuracy and its stabilization are guaranteed to be met.
STABILITY OF NONLINEAR DYNAMIC SYSTEMS WITH HOMOGENEOUS CONTROL
Authors: Шумилов Ю.Ю.
Published: September 2024

Предлагается метод задания частотных характеристик эквивалентной передаточной функции однородного управления, при котором обеспечивается устойчивость нелинейной динамической системы «в целом» и возможна настройка параметров управления для достижения заданных показателей качества системы.

A method is proposed for setting the frequency characteristics of the equivalent transfer function of homogeneous control, which ensures the stability of the nonlinear dynamic system «in general» and it is possible to adjust the control parameters to achieve the specified quality indicators of the system.