Michigan Science Center

The aim of the article is to develop an intelligent system for automated technological route selection based on graph neural networks and an interface for encoding part attributes. The objective is to formalize the product structure in a machine-readable format and build a GCN model capable of classifying parts by structure and selecting technological templates. Research methods include manual attribute entry through an interface, construction of a directed graph, parameter encoding in one-hot format, training the neural network on labelled data, and implementing a self-learning mode. Novelty lies in combining an interface for detailing part structure without requiring 3D models; a graph model with intersection nodes treated as separate entities; a GCN model for route selection; incorporation of user-defined solutions into the learning process. Results state that the model is trained on 100 graphs and achieves an accuracy of 78.6%. Loss and accuracy dynamics demonstrate stable convergence. Findings show that the system enables representation of parts as graphs, automatic template selection, and accumulation of technologists’ expertise. The solution is geared towards flexible manufacturing tasks and can be integrated into digital CAPP platforms.

This study aims to analyze the effectiveness of the singing method in improving student learning outcomes on the material of the names of angels at MI Guppi Al Jihad Balangbuki. The singing method is applied as a fun, interactive, and creative learning strategy so that students can more easily understand and remember the material. This study uses a qualitative approach with data collection techniques in the form of observation, interviews, and learning outcome tests. The subjects of the study were students of MI Guppi Al Jihad who were studying the material on the names of angels and their duties. The results of the study showed that the singing method was able to increase students' motivation and active participation in the learning process. In addition, students found it easier to memorize the names of angels and their duties compared to conventional methods. This increase can be seen from the evaluation results which showed that most students experienced an increase in understanding after the application of the singing method. Thus, the singing method can be used as an effective alternative learning method, especially in Islamic Religious Education subjects at the elementary school level. It is hoped that this study can be a reference for teachers in creating more interesting and meaningful learning for students. The results of the study showed that the singing method had a positive impact on improving students' understanding of the material on the names of angels, increasing students' memory and making it easier to memorize the names of angels. The support provided by the teacher, such as guiding questions, helps students build a better understanding of the material. In addition, students are more active in the learning process and are able to recognize the names of angels correctly. The application of the singing method can facilitate understanding of concepts and develop students' social and emotional skills

We present the large-scale distribution and kinematics of cold molecular gas across the compact galaxy group Stephan's Quintet, based on CO(2-1) observations performed with the Atacama Compact Array (ACA) and CO(1-0) data from the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We find coherent structures of molecular gas associated with the galaxies and intra-group medium, which follow the distribution of warm H$_{2}$ previously seen with the James Webb Space Telescope (JWST). CO is associated with a ridge of shocked gas that crosses the galaxy group, and with a spiral arm of the intruding galaxy NGC7318b, which interacts with the intra-group medium along the ridge. Although the ridge contains widespread shocks, turbulent gas, and warm H$_{2}$, the CO lines are narrower than elsewhere in Stephan's Quintet (FWHM~25-65 km/s), indicative of settled cold gas. At a distinctly different velocity, CO is found in the active galaxy NGC7319 and Northern star-forming region SQ-A. A bridge of turbulent molecular gas connects NGC7319 with the ridge, covering a gap of ~700 km/s between these structures. The gas excitation ranges from $L'_{\rm CO(2-1)}$/$L'_{\rm CO(1-0)}$ ~ 0.3 in the bridge and SQ-A, to ~0.5 along the ridge, to near unity in the center of NGC7319. We also detect either a molecular outflow or turbulent molecular gas associated with the radio source in NGC7319. These ACA data are part of a program with the Atacama Large Millimeter/submillimeter Array (ALMA) and JWST to study molecular gas physics from the largest to the smallest scales across the intra-group medium of Stephan's Quintet.

In this work, a computerized measuring device is developed and created for non-destructive measurement of the concentration distribution of an electrically active impurity in p–n structures. The concentration distribution is measured by recording the parameters of the barrier capacity when a small two-frequency signal is exposed to the structure under the study. The device makes it possible to study the concentration profile of p–n structures in the area of the location of quantum wells with a depth resolution of up to 3–4 atomic layers in the range of changes in the width of the spatial charge region under the influence of a constant bias voltage. The measurement results are processed, and the measuring device is controlled by a microcontroller.

Measurements of the luminous flux of efficient low-power green light emitting diodes based on In-GaN/GaN hetero-structures at a stable current density (2.5–3.5) times higher than the nominal one have been carried out. On the basis of the ABC model and the mechanism of subthreshold formation of point defects, an analytical dependence of the luminous flux decline in time has been obtained, modelling the behaviour of the corresponding experimental dependences with a high degree of accuracy. It is established that the degradation of LEDs luminous flux at a fixed direct current follows the inverse square law of the operating time. The initial period of rapid degradation, associated with changes in the state of indium micro-inclusions in the Inx-Ga1‑xN solid solution, was revealed

Populasi urban secara global terus meningkat. Begitu juga dengan urbanisasi Indonesia yang lebih di atas 50%. Penduduk perkotaan yang terus meningkat membuat gereja harus berpikir keras dengan startegi penjangkauan kota, khususnya penjangkaun kaum muda di mana Indonesia akan memasuki ledakan demographi kaum muda sesuai dengan sesnus penduduk terbaru. Metode qualitative dengan penelitian perpustakaan dan perbandingan data dari berbagai sumber yang ada akan menjadi sumber utama tulisan ini. Pelayanan misi Paulus dari kota ke kota akan menjadi sumber perbandingan misi perkotaan sekarang. Misi perkotaan menjadi kebutuhan utama di masa depan. Gereja harus melihat potensi ladang yang siap di tuai.

Cắt khối tá tràng – đầu tụy là phẫu thuật phức tạp có tỷ lệ biến chứng cao nhất trong các phẫu thuật bụng (20 – 40%). Nhiều năm qua, các bác sĩ phẫu thuật đã thử nghiệm nhiều phương pháp khác nhau để giảm tỷ lệ biến chứng. Gần đây, miệng nối Blumgart được báo cáo là một thủ thuật an toàn và giảm đáng kể các biến chứng sau phẫu thuật. Đặc biệt, nó làm giảm tỷ lệ rò tụy sau phẫu thuật. Nghiên cứu này, chúng tôi bước đầu áp dụng miệng nối Blumgart cho sáu trường hợp phẫu thuật cắt khối tá tràng – đầu tụy tại bệnh viện của chúng tôi. Kết quả: thời gian phẫu thuật trung bình 296,7 phút, thời gian đặt dẫn lưu 6,3 ngày và thời gian nằm viện sau phẫu thuật 13,3 ngày. Các biến chứng tổng thể sau phẫu thuật là ít, không có biến chứng rò tụy và biến chứng nghiêm trọng (Clavien ≥3). Do đó, chúng tôi nhận thấy miệng nối Blumgart là một thủ thuật khả thi, an toàn, gây ra ít hơn các biến chứng sau phẫu thuật, đặc biệt là giảm biến chứng rò tụy và rút ngắn thời gian điều trị. Vì vậy chúng tôi khuyến nghị sử dụng miệng nối Blumgart trong phẫu thuật cắt bỏ khối tá tràng – đầu tụy.

Penelitian ini bertujuan untuk mengetahui bagaimana penerapan metode Word Square pada mata pelajaran SKI kelas V MI Miftahun Najah, dan untuk mengetahui apakah terdapat peningkatan hasil belajar siswa dengan diterapkannya metode Word Square pada mata pelajaran SKI kelas V MI Miftahun Najah. Jenis penelitian yang digunakan adalah penelitian tindakan kelas (PTK) yang terdiri dari dua siklus menggunakan model Kemmis & Taggart. Masing-masing siklus terdiri dari empat tahapan yakni perencanaan, pelaksanaan, pengamatan, dan refleksi. Dengan menggunakan instrumen tes berupa soal post test dan lembar observasi aktivitas guru dan siswa. Subjek penelitian ini adalah siswa kelas V MI Miftahun Najah Manding Sumenep dengan jumlah 13 siswa. Penelitian ini memperoleh hasil sebagai berikut: dalam penerapan metode Word Square terdapat peningkatan hasil belajar kognitif siswa di setiap siklusnya. Dimana nilai rata-rata hasil belajar pra penelitian sebesar 56,84 dan pada siklus I nilai rata-rata hasil belajar siswa meningkat menjadi 67,69 dengan persentase 53,85%. Adapun pada siklus II meningkat lagi dengan nilai rata-rata 82,30 dengan persentase 92,30%. Hal ini menunjukkan bahwa metode Word Square dapat meningkatkan hasil belajar siswa secara kognitif. Selain itu dapat meningkatkan kemampuan afektif siswa yang diamati dari aktivitas siswa dalam pembelajaran.