bluuebunny/crossref_metadata_2025_split huggingface dataset:
FACTORS AFFECTING THE PERSONNEL CHARACTERISTICS OF THE STAFF OF FPS GPS EMERCOM OF RUSSIA
Authors: Мазаев К.А. , Удавцова Е.Ю. , Кондашов А.А. , Бобринев Е.В. 
Published: September 2024

Методом факторного анализа выявлены значимые факторы, характеризующие взаимосвязь кадровых характеристик пожарно-спасательных подразделений ФПС ГПС МЧС России и некоторых региональных характеристик субъектов Российской Федерации. Описана структура этих факторов. Выделены группы субъектов с высоким, средним и низким уровнем валового регионального продукта, являющегося одним из значимых показателей, влияющих на кадровые характеристики личного состава ФПС. Проведенный анализ показал, что в субъектах Российской Федерации, в которых отмечается высокий уровень валового регионального продукта, больше некомплект личного состава ФПС и выше текучесть кадров.
There has been analyzed the personnel characteristics of the fire and rescue units of the FPS GPS, their relationship with the regional characteristics of the subjects of the Russian Federation, in particular with the specific gross regional product. A set of statistical data has been created to determine, for each subject, the average age and length of service of personnel, staff turnover and shortages, the proportion of personnel with higher, secondary vocational and fire-technical education, and a number of other personnel characteristics. The size of the gross domestic product is determined on the basis of the population of the subject of the Russian Federation. The factor analysis was carried out using a matrix of synthetic indicators, which revealed six significant factors that together explain 71.8% of the total variance. Groups of subjects with high, medium and low levels of gross regional product are identified. For each group the average values of the indicators of personnel and regional characteristics are calculated and, using the 2 criterion, the indicators that depend most on the level of the gross regional product are determined. The analysis showed that in the subjects of the Russian Federation where the level of gross regional product is high, there is a greater shortage of FPS GPS personnel and staff turnover. These subjects also have a higher proportion of personnel who have undergone professional retraining and have a qualification class. Taking into account the dangerous and risky working conditions of the FPS GPS personnel, it is necessary to create and stimulate the improvement of the professional level of the firefighters, who should meet today's criteria for the prevention of fires and emergencies, as well as the elimination of their consequences, to look for new, flexible personnel solutions, which allow to increase the work efficiency and neutralise emerging problems.
Perception of Undergraduates on Government Interventions in Environmental Issues in Southwest, Nigeria
Authors: Akinlade B. K 
Published: September 2024

This study examined the perception of undergraduates on government interventions in environmental issues in Southwest, Nigeria. This study further examined the differences in the perception of undergraduates on government interventions in environmental issues in Southwest, Nigeria based on gender and ownership of University. Descriptive survey research design was adopted for the study. The population of the study comprised all university undergraduates in Southwest, Nigeria. A sample of 1752 male and female Undergraduates in Federal, State and Private Universities were used for the study. Multistage sampling procedure was employed for the sample selection. Questionnaire on Perception of Undergraduates on Government Interventions in Environmental Issues {QPUGIEI) was used in this study. The validity of the instrument was ensured through face and content validity procedures and the reliability of the QPUGIEI was established using Cronbach Alpha method and the alpha value of 0.74 was obtained. The data generated for this study were analysed using descriptive and inferential statistics. The descriptive statistics of frequency counts, mean and percentages were used to provide answers to the research question while inferential statistics of t-test and Analysis of Variance (ANOVA) were used to test the hypotheses at 0.05 level of significance. The finding of the study showed that university undergraduates had favourable perception of government interventions in environmental issues in Southwest, Nigeria, there was a significant difference in the perception of male and female undergraduates towards government interventions in environmental issues, there was a significant difference in the perception of undergraduates towards government interventions in environmental issues based on the ownership of University. Based on the findings of this study, it was recommended that irrespective of the gender of undergraduates and ownership of the university government should intensify effort on environmental education programmes such that all undergraduates will have same favourable perception on government interventions in environmental issues.
Left Ventricular Hypertrophy In Ischemic Stroke Patients Single Center Experience
Authors: Ishfaq Muhammad , Mehr Muhammad Tariq , Nisa Qamar Un , Khan Taimoor 
Published: September 2024

OBJECTIVES
To ascertain the prevalence of left ventricular hypertrophy in individuals diagnosed with ischemic stroke.
METHODOLOGY
A cross-sectional study was undertaken in the Department of Medicine, Hayatabad Medical Complex, Peshawar, from October 1, 2020, to April 30, 2021, after obtaining ethical approval. The study included 143 individuals who had evidence of ischemic stroke on a CT scan. These patients were assessed for the presence or absence of left ventricular hypertrophy using transthoracic echocardiography.
RESULTSThe average age of the participants in the study was 57 years, with a standard deviation of 7.9 years. The sample consisted of 67.8% males and 32.2% females. The average BMI was calculated to be 25.3 + 3.3kg/m2, and 39.9% of the patients were from urban areas. Left ventricular hypertrophy was observed in 16.8% of patients who had experienced an ischemic stroke, with the greatest occurrence rate of 39.9% found in the age range of 50-60 years. There was no significant correlation observed between hypertension, diabetes, location of residence, age, and smoking.
CONCLUSION
Early and precise identification of the modifiable risk factors during the illness, followed by proper intervention, has the potential to decrease the incidence of debilitating stroke greatly. It is necessary to conduct large-scale population screening studies inside our local community. TTE should be carried out in all acute ischemic stroke patients to optimize the management of these patients.
Investigation on Optimum Waterjet Cleaning Parameters for Minimum Surface Impact During Paint Removal from Mild Steel
Authors: Mat Nawi Mohd Nazir , Husin Hafiz , Gebremariam Mebrahitom Asmelash , Saptaji Kushendarsyah , Azhari Azmir 
Published: September 2024

In paint removal operations, one of the major areas of concentration is efficient cleaning, with the objective aiming to effectively remove paint while having as minimal impact as possible on the surface. Conventional cleaning methods, such as chemical and mechanical techniques, are widely utilized for paint removal despite their affordability, but they may face future prohibition due to environmental concerns. Waterjet cleaning is becoming more and more popular as a better cleaning technique that guarantees efficiency while also prioritising environmentally friendly. In the present investigation, a Box–Behnken design of the response surface methodology (RSM) was utilised in order to evaluate the influence that waterjet cleaning parameters had on painted mild steel. This was done so in order to determine the optimal waterjet cleaning parameters. The waterjet cleaning parameters that were selected were pressure, number of passes, and overlap rate. Output responses were considered to be the surface roughness, the material removal rate (MRR), and the cleaning rate. To predict surface roughness (Ra), cleaning efficiency, and material removal rate (MRR), workable empirical models have been created and an analysis of variance (ANOVA) was performed in order to determine the consistency of the results. The empirical models that were created for Ra, cleaning rate, and MRR all exhibit acceptable coefficients of determination and adequate correlations between the responses that were measured and the responses that were anticipated. For each response, a separate desirability function was used, which resulted in the generation of an entirely new set of optimal parameters. Both the anticipated and actual responses for optimised Ra, cleaning rate, and MRR are satisfactory, indicating that the model has a high degree of reliability. It has been demonstrated that the models are capable of accurately predicting the reactions of Ra, cleaning rate, and MRR in the context of the current investigation. The analysis identified that the optimal conditions for effective cleaning with minimal surface damage using abrasive waterjet cleaning are a pressure of 62 MPa, a single pass, and a 25% overlap rate. It is possible to construct a suitable selection of cleaning parameters that can be applied in practical works.
Proses Pembelajaran Paduan Suara di Lembaga Sanggar Melodious Magnificent Ensemble
Authors: Siallagan Ruth Melody Misbow , Purba Mauly 
Published: September 2024

Pendidikan musik bagi anak sangatlah perlu, karena manfaat pendidikan musik bagi anak merupakan bagian yang sangat menunjang dalam rangka mengisi proses kehidupan di masa depan. Tujuan penelitian ini adalah untuk menganalisis proses pembelajaran paduan suara di Lembaga Sanggar Melodius Magnificnet . Penelitian ini adalah penelitian kualitatif dengan teknik pengumpulan data wawancara, dokumentasi dan observasi. Berdasarkan hasil pembahasan dan penelitian tentang pembelajaran paduan suara untuk anak-anak di Sanggar Melodious Magnificent dapat disimpulkan sebagai berikut. Pembelajaran paduan suara untuk anak-anak di Sanggar Melodious Magnificent menggunakan metode pembelajaran demonstrasi dan metode pembelajaran latihan. Proses pembelajaran vokal untuk anak-anak berlangsung selama tiga jam setiap satu kali pertemuan di hari Minggu. Sanggar Melodious Magnificent ini sudah berjalan hampir satu tahun, dan sudah banyak sekali anak-anak yang dilahirkan karyanya. Salah satu program pembelajaran paduan suara di Sanggar Melodious Magnificent Esamble adalah Paduan suara.
Pengaruh Penerapan Disiplin Kerja, Keselamatan dan Kesehatan Kerja dalam Pembelajaran Guru Mata Pelajaran Otomotif
Authors: Hidayat Muhammad Pasa , Hartinah Sitti , Apriani Dewi 
Published: September 2024

Penerapan disiplin kerja keselamatan kerja dan kesehatan kerja pada proses pembelajaran ialah agar semua pekerjaan dan proses belajar mengajar dapat berjalan dengan lancar dan para pelajar menjadi selamat dalam belajar, semua orang pasti ingin selamat dalam berkegiatan tidak ada yang dalam aktivitasnya ingin celaka atau terjadi kecelakaan. Penelitan ini bertujuan untuk, menganalisis pengaruh disiplin kerja pada pembelajaran guru mata pelajaran otomotif SMK Kabupaten Pekalongan. menganalisis pengaruh pelaksanakan keselamatan kerja terhadap pembelajaran guru mata pelajaran otomotif SMK Kabupaten Pekalongan,menganalisis pengaruh pelaksanakan kesehatan kerja terhadap pembelajaran guru mata pelajaran otomotif SMK Kabupaten Pekalongan, menganalisis pengaruh pelaksanakan disiplin keselamatan dan kesehatan kerja secara simultan terhadap pembelajaran guru mata pelajaran otomotif SMK Kabupaten Pekalongan Penelitian ini mengguakan metode kuantitatif teknik pengambilan data melalui angket, responden yang diambil dari guru otomotif kab Pekalongan, untuk skalanya kita menggunakan Scale Likert, Populasi penelitian ini adalah seluruh guru SMK Otomotif TBSM baik SMK Negeri maupun Swasta di Kab Pekalongan sejumlah delapan puluh empat orang guru. Hasil penelitiannya ialah terdapat pengaruh disiplin kerja terhadap pembelajaran mata pelajaran otomotif cukup besar, terdapat pengaruh keselamatan kerja terhadap pembelajaran mata pelajaran otomotif , terdapat pengaruh kesehatan kerja terhadap pembelajaran mata pelajaran otomotif , terdapat pengaruh pada uji pengaruh variable bahwa adjudted r square Simpulannya ialah kedisiplinan kerja keselamatan kerja dan kesehatan kerja berpengaruh terhadap pembelajaran guru mata pelajaran otomotif sehingga murid, guru, sekolah maupun semua yang terkait wajib menerapkan dengan benar di setiap proses pembelajaran sehingga proses pembelajaran dan mutu pendidikan akan baik.
Model Asesmen Literasi Sains pada peserta Didik Sekolah Dasar dengan Aplikasi Model Rasch
Authors: Riyadi Agus , Susongko Purwo , Munadi Munadi 
Published: September 2024

Pengukuran literasi sains penting dilakukan untuk mengetahui ketercapaian literasi sains siswa dalam memahami konsep sains yang sudah dipelajari . Pengukuran literasi sains juga penting dilakukan untuk mengetahui sejauh mana pemahaman siswa terhadap konsep-konsep sains yang telah dipelajarinya. Tujuan Penelitian ini Untuk mengetahui kebutuhan kepala sekolah,guru dan siswa Sekolah dasar terhadap instrumen assesmen literasi sains,mengembangkan desain model asesmen literasi sains,mengetahui validitas isi,psikometri dan validasi konstraks dari instrumen asesmen literasi sains. Jenis penelitian yang digunakan merupakan penelitian dan pengembangan (resecarch and development) atau dikenal dengan istilah R&D. Rancangan penelitian yang digunakan pada jenis penelitian dan pengembangan yaitu menggunakan model ADDIE. Tempat penelitian di SD se- Gugus Sultan Agung Kec.Kedungbanteng. Waktu penelitian pada bulan Mei - Juni 2024. Populasi penelitian ini adalah siswa kelas VI SD se- Gugus Sultan Agung Kec.Kedungbanteng. Sampel penelitian ini ada 147 anak. Hasil penelitian adalah Secara kuantitatif butir tes yang dinyatakan fit atau berfungsi baik karena nilai Outfit MSQ antara 0,5 sampai 1,5 , nilai outfit t antara -2 sampai 2,0 dan peluang penerimaan Ho (kecocokan contoh) lebih sensitif berdasarkan 0,01 (p > 0,01). Berdasarkan hasil penelitian, sebaiknya asesmen literasi sains di terapkan di sekolah dasar, dan asesmen perlu di validasi sebelum diujikan kepada peserta didik . Bagi sekolah agar melengkapi semua fasilitas belajar. Sementara itu untuk meningkatkan literasi sains dalam pembelajaran dengan menyisipkan asesmen literasi sains dalam pembelajaran IPA.
Pengembangan Media Pembelajaran Berbantukan Media Animaker untuk Meningkatkan Hasil Belajar Siswa Kelas VI pada Materi Bangun Ruang
Authors: Kholikin Kholikin , Mulyani Sutji , Sudibyo Hanung 
Published: September 2024

Penelitian ini bertujuan untuk (1) mengetahui proses pengembangan media pembelajaran materi bangun ruang, (2) mengetahui hasil pengembangan media berbantu media Animaker dalam pembelajaran materi bangun ruang, dan (3) mengetahui hasil hasil belajar siswa kelas VI SD Negeri Sitail Kecamatan Jatinegara Kabupaten Tegal pada materi bangun ruang mengunakan media pembelajaran berbantu media Animaker. Peneltian ini menggunakan model penelitian pengembangan atau Research and Development (R&D). Jenis produk yang dihasilkan adalah media pembelajaran Animaker pada materi bangun ruang. Desain penelitian pengembangan media pembelajaran yang dilakukan merujuk pada pengembangan ADDIE yang dimofifikasi menjadi ADD (Analisis, Desain dan Development). Hasil penelitian menunjukkan bahwa Proses pengembangan media pembelajaran materi bangun ruang siswa menggunakan tahapan analisis, desain dan pengembangan. Pada tahapan analisis terdiri dari analisis kebutuhan siswa, analisis karakteristik siswa dan analisis materi pembelajaran. Pada tahapan desain atau perancangan terdiri dari pemilihan format media dan pengembangan Storyboard. Sedangkan pada tahapan pengembangan terdiri dari validasi ahli materi bangun ruang berbantu animaker, validasi ahli bahasa, validasi ahli media dan validasi isi instrumen butir soal. Pengembangan media berbantu media Animaker dalam pembelajaran materi bangun ruang siswa SD kelas VI SD Negeri Sitail Kecamatan Jatinegara Kabupaten Tegal melibatkan ahli dalam memvalidasi instrumen. Validasi ahli materi bangun ruang berbantu animaker penilai I memperoleh nilai 85.00 (layak) sedangkan pennilai II memperoleh nilai 88.75 (sangat layak), validasi ahli bahasa penilai memperoleh nilai 85 (layak) dan penilai II memperoleh nilai 90 (Sangat Layak), validasi ahli media penilai I memperoleh nilai 85.00 (layak) dan penilai II memperoleh nilai 83.75 (layak). Sedangkan validasi isi instrumen butir soal penilai memperoleh nilai 81.25 (layak) dan penilai II memperleh nilai 84.37 (layak). Hasil belajar siswa kelas VI SD Negeri Sitail Kecamatan Jatinegara Kabupaten Tegal pada materi bangun ruang mengunakan media pembelajaran berbantu media Animaker memperoleh rata-rata penilaian harian sebesar 80.40. Jumlah siswa tuntas sebanyak 23 siswa dari 25 siswa, sedangkan persentase ketuntasan sebesar 92%.
Interstellar Glycolaldehyde, Methyl Formate, and Acetic Acid. II. Chemical Modeling of the Bimodal Abundance Pattern in NGC 6334I
Authors: Shope Brielle M. , El-Abd Samer J. , Brogan Crystal L. , Hunter Todd R. , Willis Eric R. , McGuire Brett A. , Garrod Robin T. 
Published: September 2024

Abstract
Gas-phase abundance ratios between C2H4O2 isomers methyl formate (MF), glycolaldehyde (GA), and acetic acid (AA) are typically on the order of 100:10:1 in star-forming regions. However, an unexplained divergence from this neat relationship was recently observed toward a collection of sources in the massive protocluster NGC 6334I; some sources exhibited extreme MF:GA ratios, producing a bimodal behavior between different sources, while the MF:AA ratio remained stable. Here, we use a three-phase gas-grain hot-core chemical model to study the effects of a large parameter space on the simulated C2H4O2 abundances. A combination of high gas densities and long timescales during ice-mantle desorption (∼125–160 K) appears to be the physical cause of the high MF:GA ratios. The main chemical mechanism for GA destruction occurring under these conditions is the rapid adsorption and reaction of atomic H with GA on the ice surfaces before it has time to desorb. The different binding energies of MF and GA on water ice are crucial to the selectivity of the surface destruction mechanism; individual MF molecules rapidly escape the surface when exposed by water loss, while GA lingers and is destroyed by H. Moderately elevated cosmic-ray ionization rates can increase absolute levels of “complex organic molecule” (COM) production in the ices and increase the MF:GA ratio, but extreme values are destructive for gas-phase COMs. We speculate that the high densities required for extreme MF:GA ratios could be evidence of COM emission dominated by COMs desorbing within a circumstellar disk.
Force-free Wave Interaction in Magnetar Magnetospheres: Computational Modeling in Axisymmetry
Authors: Mahlmann Jens F. , Aloy Miguel Á. , Li Xinyu 
Published: September 2024

Abstract
Crustal quakes of highly magnetized neutron stars can disrupt their magnetospheres, triggering energetic phenomena like X-ray and fast radio bursts. Understanding plasma wave dynamics in these extreme environments is vital for predicting energy transport across scales to the radiation length. This study models relativistic plasma wave interaction in magnetar magnetospheres with force-free electrodynamics simulations. For propagation along curved magnetic field lines, we observe the continuous conversion of Alfvén waves to fast magnetosonic (FMS) waves. The conversion efficiency can be up to three times higher when counter-propagating Alfvén waves interact in the equatorial region. Alfvén waves generate FMS waves of twice their frequency during their first crossing of the magnetosphere. After the initial transient burst of FMS waves, Alfvén waves convert to FMS waves periodically, generating variations on timescales of the magnetospheric Alfvén wave crossing time. This decaying FMS wave tail carries a significant portion (half) of the total energy emitted. Plastic damping of “bouncing” Alfvén waves by the magnetar crust has minimal impact on the FMS efficiency. We discuss the implications of the identified wave phenomena for magnetar observations. Outgoing FMS waves can develop electric zones, potential sources of coherent radiation. Long wavelength FMS waves could generate FRBs through reconnection beyond the light cylinder.
Precise Transit Photometry Using TESS. II. Revisiting 28 Additional Transiting Systems with Updated Physical Properties
Authors: Saha Suman 
Published: September 2024

Abstract
Precise physical properties of the known transiting exoplanets are essential for their precise atmospheric characterization using modern and upcoming instruments. Leveraging the large volume of high-signal-to-noise-ratio photometric follow-up data from TESS, highly precise physical properties can be estimated for these systems, especially for those discovered using ground-based instruments prior to the TESS mission. In this work, I have used the publicly available TESS follow-up data for 28 transiting systems with 10 < V
mag < 10.5, with an aim to update their known physical properties. The observed lightcurves have been analyzed by implementing a state-of-the-art critical noise treatment algorithm to effectively reduce both time-correlated and uncorrelated noise components, using sophisticated techniques like wavelet denoising and Gaussian-process regression. Compared with the previous studies, the estimated transit parameters are found to be more precise for most of the targets, including a few cases where a larger space-based instrument like Spitzer, Kepler, or CHEOPS has been used in the previous study. The large volume of transit observations used for each target has also resulted in a more accurate estimation of the physical properties, as this overcomes any error in parameter estimations from bias present in a smaller volume of data. Thus, comparing with the literature values, statistically significant improvements in the known physical properties of several targeted systems have been reported from this work. The large volume of transit-timing information from the analyses was also used to search for transit-timing variation trends in these targets, which has resulted in no significant detection.
Irregular Moons Possibly Injected from the Outer Solar System by a Stellar Flyby
Authors: Pfalzner Susanne , Govind Amith , Wagner Frank W. 
Published: September 2024

Abstract
The irregular moons orbit the giant planets on distant, inclined, and eccentric trajectories, in sharp contrast with the coplanar and quasicircular orbits of the regular moons. The origin of these irregular moons is still an open question, but these moons have a lot in common with the objects beyond Neptune (trans-Neptunian objects—TNOs), suggestive of a common origin. Here, we show that the close flyby of a star may be the connecting element. A stellar flyby can simultaneously reproduce the complex TNO dynamics quantitatively while explaining the origin of the irregular moons and the color distributions of both populations. This flyby would have catapulted 7.2% of the original TNO population into the region of the planets, many on retrograde orbits. Most injected TNOs would have been subsequently ejected from the solar system (85%). However, a considerable fraction would have had the potential to be captured by the planets. The exclusively distant origin of the injected TNOs may also explain the lack of very red irregular moons.