bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of the effectiveness of ensuring the environmental safety of the ship's personnel
Authors: Скороходов Д.А. , Каминский В.Ю. , Кузнецова Е.Ю. 
Published: March 2022

В статье изложен алгоритм оценки экологической обстановки на водном транспортном средстве с использованием специального критерия, включающего учёт основных факторов среды обитания экипажа судна: состава воздуха рабочей зоны, освещения, шума, вибрации, характеристик электромагнитного поля, качки. Определены коэффициенты значимости (важности) основных факторов экологической обстановки и их составляющих (подфакторов) в процессе обеспечения экологической безопасности персонала на рабочем месте. Для оценки вклада каждого фактора среды обитания экипажа в рамках экспертной оценки используется наиболее объективный, бинарный, способ. С учётом разнородности факторов экологической обстановки и, соответственно, критериев их оценки, в качестве показателя эффективности предложен критерий максимума аддитивной технической полезности - показатель, который позволяет участь все виды факторов и их характеристик. Форма критерия обеспечивает однозначную физическую интерпретацию, при которой очевиден вклад каждого фактора в общую оценку предпочтительности. Исследованы различные виды функций технической полезности и определены их конкретные выражения для различных характеристик экологической безопасности, входящих в аддитивный критерий оценки экологической обстановки.
The article describes an algorithm for assessing the environmental situation on a water vehicle using a special criterion that includes consideration of the main factors of the crew's habitat: the composition of the working area air, lighting, noise, vibration, electromagnetic field characteristics, pitching. The coefficients of significance (importance) of the main environmental factors and their components (subfactors) in the process of ensuring the environmental safety of personnel at the workplace are determined. To assess the contribution of each factor of the crew's habitat, the most objective, binary method is used as part of an expert assessment. Taking into account the heterogeneity of environmental factors and, accordingly, the criteria for their assessment, the criterion of maximum additive technical utility is proposed as an indicator of efficiency - an indicator that allows the participation of all types of factors and their characteristics. The form of the criterion provides an unambiguous physical interpretation, in which the contribution of each factor to the overall assessment of preference is obvious. Various types of technical utility functions are investigated and their specific expressions for various characteristics of environmental safety included in the additive criterion for assessing the environmental situation are determined.
Management of multimodal transportation based on methodology for estimating gross profit per time period
Authors: Тюленев К.Г. 
Published: March 2022

Система линейных контейнерных перевозок является одним из важнейших компонентов товаропроводящей сети, обеспечивающей связанность территорий, конкурентоспособность промышленности, развитие внешнеэкономической деятельности. В результате структурных изменений в мировом промышленном производстве линейные контейнерные перевозки получили динамичный импульс развития. В представленной статье рассмотрены специализированные методические подходы к обеспечению эффективности организации линейных контейнерных сервисов с использованием водного и наземного транспорта, определена целесообразность интегрированного управления мультимодальными контейнерными перевозками, сформирован комплекс мер, способствующих привлечению дополнительных грузопотоков, развитию экспорта транспортных услуг и цифровой трансформации в сфере мультимодальных контейнерных перевозок. Внедрение интегрированных инструментов управления линейными контейнерными перевозками позволяет повысить эффективность товародвижения. Линейное контейнерное судоходство ввиду этого становится основой транспортной интеграции при осуществлении международных мультимодальных перевозок. Эффективное использование активов линейного судоходства способствует повышению конкурентоспособности мультимодальных сервисов и российской терминальной инфраструктуры, стимулирует инвестиционный спрос, увеличение объемов производства в регионах, тяготеющих к портам, рост транзитного грузооборота, внося вклад в поступательное развитие внешней торговли и транспортной системы страны.
The system of liner container shipping is one of most important components in the commodity distribution network, enabling the connectivity of territory, competitiveness of industry and development of foreign economic activity. As a result of structural changes in world industrial production, liner container shipping achieved a dynamic development acceleration. Represented article reflects specialized methodological approaches for providing the effectiveness of line container services applying water and land transport, verifies the reasonability of integrated management for multimodal container transportation, forming complex measures supporting the increase of line cargo traffic, developing export of transport services and digital transformation in the sphere of multimodal container transportation. Implementation of integrated procedures for managing liner container transportation is facilitating the efficiency of merchandise flows. On this evidence liner container shipping becomes the basis of transport integration in the international multimodal transportation. Efficient use of liner shipping assets provides the increase of competitiveness for multimodal services and Russian terminal infrastructure, stimulates investment demand, increase of production volumes in regions located towards ports, and the growth of transit cargo turnover, contributing to the progressive development of national transport system and foreign trade.
Analisis Pembelajaran Lingkungan Sosial Berbasis STEAM pada Anak Usia Dini
Authors: Purwaningsih Putri , Munawar Muniroh , Prasetiyawati Dyah Hariyanti Dwi 
Published: March 2022

Penelitian ini menggunakan pendekatan pembelajaran STEAM (science, technology, enginering, art and mathematics) agar memberi kesempatan pada anak untuk dapat terlibat secara langsung dalam pembelajaran dan menggunakan tema dalam kehidupan sehari-hari. Permasalahan dalam penelitian ini adalah bagaimana menganalisis pembelajaran lingkungan sosial berbasis STEAM pada anak usia dini. Penelitian ini bertujuan untuk mendeskripsikan bagaimana pembelajaran lingkungan sosial berbasis STEAM pada anak usia dini. Metode penelitian ini adalah kualitatif deskriptif. Penelitian ini meneliti siswa kelompok B TK Tunas Rimba 1 Semarang yang berjumlah 6 anak. Data di dalam penelitian ini diperoleh melalui observasi, dokumentasi dan wawancara. Hasil penelitian ini menunjukkan bahwa dalam analisis pembelajaran lingkungan sosial berbasis STEAM pada anak usia dini anak-anak mampu terlibat, bereksplorasi, menjelaskan, mencari tahu dan diskusi bersama dalam kegiatan pembelajaran. Dimana aspek-aspek tersebut merupakan indikator dalam menganalisis pembelajaran lingkungan sosial berbasis STEAM. Sehingga ketika aspek-aspek tersebut berkembang maka menunjukkan perkembangan analisis pembelajaran lingkungan sosial berbasis STEAM oleh anak.
Kerja Sama Orang Tua dan Pendidik dalam Mengenalkan Nilai-Nilai Moral Anak
Authors: Saleh Rachman 
Published: March 2022

Tujuan dari penelitian ini adalah untuk menjelaskan pelaksanan kerja sama orang tua dan pendidik dalam mengenalkan nilai moral pada anak di RA. Al-hikmah. Metode yang digunakan dalam penelitian ini adalah kualitatif dengan masalah pada RA. Al-Hikmah. Data dikumpulkan melalui wawancara, observasi, dan dokumentasi. Serta analisis data yang digunakan analisis deskriptif kualitatif, yang selalu menjelaskan fenomena dengan berkata-kata. Hasil penelitia ini menjelaskan bahwa : Pelaksanaan kerjasama orang tua dan pendidik dalam mengenalkan nilai-nilai moral anak di RA. Al.-hikmah sudah terlaksana dengan baik sesuai dengan standar tingkat pencapaian perkembangan anak. Kerjasama ini meyumbangkan efek yang berlimpah dalam proses pengenalan nilai moral anak. Ini terbukti bahwa integritas anak mulai terbentuk nilai toleransi, kejujuran, sopan, serta ibadah sholatnya. Namun secara eksternal masih terdapat beberapa orang tua anak masih kurang perhatian terhadap himbauan untuk melaksanakan pengawasan perkembangan nilai moral anak.
Validation and Improvement of the Pan-STARRS Photometric Calibration with the Stellar Color Regression Method
Authors: Xiao Kai , Yuan Haibo 
Published: March 2022

Abstract
As one of the best ground-based photometric data set, Pan-STARRS1 (PS1) has been widely used as the reference to calibrate other surveys. In this work, we present an independent validation and recalibration of the PS1 photometry using spectroscopic data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR7, and photometric data from the corrected Gaia Early Data Release 3 (EDR3) with the Stellar Color Regression (SCR) method. Using per band typically a total of 1.5 million LAMOST-PS1-Gaia stars as standards, we show that the PS1 photometric calibration precisions in the grizy filters are around 4 ∼ 5 mmag when averaged over 20′ regions. However, significant large- and small-scale spatial variation of magnitude offset, up to over 1%, probably caused by the calibration errors in the PS1, are found for all the grizy filters. The calibration errors in different filters are uncorrelated, and are slightly larger for the g and y filters. We also detect moderate magnitude-dependent errors (0.005, 0.005, 0.005, 0.004, 0.003 mag per magnitude in the 14–17 mag range for the grizy filters, respectively) in the PS1 photometry by comparing with the Gaia EDR3 and other catalogs. The errors are likely caused by the systematic uncertainties in the PSF magnitudes. We provide two-dimensional maps to correct for such magnitude offsets in the LAMOST footprint at different spatial resolutions from 20′ to 160′. The results demonstrate the power of the SCR method in improving the calibration precision of wide-field surveys when combined with the LAMOST spectroscopy and Gaia photometry.
Five Decades of Chromospheric Activity in 59 Sun-like Stars and New Maunder Minimum Candidate HD 166620
Authors: Baum Anna C. , Wright Jason T. , Luhn Jacob K. , Isaacson Howard 
Published: March 2022

Abstract
We present five decades of chromospheric activity measurements in 59 Sun-like stars as time series. These include and extend the 35 yr of stellar chromospheric activity observations by the Mount Wilson Survey (1966–2001), and continued observations at Keck by the California Planet Search (1996–). The Mount Wilson Survey was studied closely in 1995, and revealed periodic activity cycles similar to the Sun’s 11 yr cycle. The California Planet Search provides more than five decades of measurements, significantly improving our understanding of these stars’ activity behavior. We have curated the activity measurements in order to create contiguous time series, and have classified the stellar sample according to a predetermined system. We have analyzed 29 stars with periodic cycles using the Lomb–Scargle periodogram, and present best-fit sinusoids to their activity time series. We report the best-fit periods for each cycling star, along with stellar parameters (T
eff, log(g), vsin(i), etc.) for the entire sample. As a first application of these data, we offer a possible Maunder minimum candidate, HD 166620.
A New Planet Candidate Detected in a Dust Gap of the Disk around HD 163296 through Localized Kinematic Signatures: An Observational Validation of the discminer
Authors: Izquierdo Andrés F. , Facchini Stefano , Rosotti Giovanni P. , van Dishoeck Ewine F. , Testi Leonardo 
Published: March 2022

Abstract
We report the robust detection of coherent, localized deviations from Keplerian rotation possibly associated with the presence of two giant planets embedded in the disk around HD 163296. The analysis is performed using the discminer channel map modeling framework on 12CO J = 2–1 DSHARP data. Not only orbital radius but also azimuth of the planets are retrieved by our technique. One of the candidate planets, detected at R = 94 ± 6 au, ϕ = 50° ± 3° (P94), is near the center of one of the gaps in dust continuum emission and is consistent with a planet mass of 1 M
Jup. The other planet, located at R = 261 ± 4 au, ϕ = 57° ± 1° (P261), is in the region where a velocity kink was previously observed in 12CO channel maps. Also, we provide a simultaneous description of the height and temperature of the upper and lower emitting surfaces of the disk and propose the line width as a solid observable to track gas substructure. Using azimuthally averaged line width profiles, we detect gas gaps at R = 38, 88, and 136 au, closely matching the location of their dust and kinematical counterparts. Furthermore, we observe strong azimuthal asymmetries in line widths around the gas gap at R = 88 au, possibly linked to turbulent motions driven by the P94 planet. Our results confirm that the discminer is capable of finding localized, otherwise unseen velocity perturbations thanks to its robust statistical framework, but also that it is well suited for studies of the gas properties and vertical structure of protoplanetary disks.
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A Hot Corino Survey toward Protostellar Cores in the Orion Cloud
Authors: Hsu Shih-Ying , Liu Sheng-Yuan , Liu Tie , Sahu Dipen , Lee Chin-Fei , Tatematsu Kenichi , Kim Kee-Tae , Hirano Naomi , Yang Yao-Lun , Johnstone Doug , Liu Hongli , Juvela Mika , Bronfman Leonardo , Chen Huei-Ru Vivien , Dutta Somnath , Eden David J. , Jhan Kai-Syun , Kuan Yi-Jehng , Lee Chang Won , Lee Jeong-Eun , Li Shanghuo , Liu Chun-Fan , Qin Sheng-Li , Sanhueza Patricio , Shang Hsien , Soam Archana , Traficante Alessio , Zhou Jianjun 
Published: March 2022

Abstract
The presence of complex organic molecules (COMs) in the interstellar medium is of great interest since it may link to the origin and prevalence of life in the universe. Aiming to investigate the occurrence of COMs and their possible origins, we conducted a chemical census toward a sample of protostellar cores as part of the Atacama Large Millimeter/submillimeter Array Survey of Orion Planck Galactic Cold Clumps project. We report the detection of 11 hot corino sources, which exhibit compact emissions from warm and abundant COMs, among 56 Class 0/I protostellar cores. All of the hot corino sources discovered are likely Class 0, and their sizes of the warm region (>100 K) are comparable to 100 au. The luminosity of the hot corino sources exhibits positive correlations with the total number of methanol and the extent of its emissions. Such correlations are consistent with the thermal desorption picture for the presence of hot corinos and suggest that the lower-luminosity (Class 0) sources likely have a smaller region with COM emissions. With the same sample selection method and detection criteria being applied, the detection rates of the warm methanol in the Orion cloud (15/37) and the Perseus cloud (28/50) are statistically similar when the cloud distances and the limited sample size are considered. Observing the same set of COM transitions will bring a more informative comparison between the cloud properties.
New Time-resolved, Multi-band Flares in the GJ 65 System with gPhoton
Authors: Fleming Scott W. , Million Chase , Osten Rachel A. , Kolotkov Dmitrii Y. , Brasseur C. E. 
Published: March 2022

Abstract
Characterizing the distribution of flare properties and occurrence rates is important for understanding habitability of M-dwarf exoplanets. The Galaxy Evolution Explorer (GALEX) space telescope observed the GJ 65 system, composed of the active, flaring M stars BL Cet and UV Cet, for 15,900 s (∼4.4 hr) in two ultraviolet (UV) bands. The contrast in flux between flares and the photospheres of cool stars is maximized at UV wavelengths, and GJ 65 is the brightest and nearest flaring M-dwarf system with significant GALEX coverage. It therefore represents the best opportunity to measure low-energy flares with GALEX. We construct high-cadence lightcurves from calibrated photon events and find 13 new flare events with near-UV (NUV) energies ranging from 1028.5–1029.5 erg and recover one previously reported flare with an energy of 1031 erg. The newly reported flares are among the smallest M-dwarf flares observed in the UV with sufficient time resolution to discern lightcurve morphology. The estimated flare frequency at these low energies is consistent with extrapolation from the distributions of higher-energy flares on active M dwarfs measured by other surveys. The largest flare in our sample is bright enough to exceed the local nonlinearity threshold of the GALEX detectors, which precludes color analysis. However, we detect quasi-periodic pulsations during this flare in both the far-UV and NUV bands at a period of ∼50 s, which we interpret as a modulation of the flare’s chromospheric thermal emission through periodic triggering of reconnection by external MHD oscillations in the corona.
Machine Learning Classification to Identify Catastrophic Outlier Photometric Redshift Estimates
Authors: Singal J. , Silverman G. , Jones E. , Do T. , Boscoe B. , Wan Y. 
Published: March 2022

Abstract
We present results of using a basic binary classification neural network model to identify likely catastrophic outlier photometric redshift estimates of individual galaxies, based only on the galaxies’ measured photometric band magnitude values. We find that a simple implementation of this classification can identify a significant fraction of galaxies with catastrophic outlier photometric redshift estimates while falsely categorizing only a much smaller fraction of non-outliers. These methods have the potential to reduce the errors introduced into science analyses by catastrophic outlier photometric redshift estimates.
Parallel Electron Heating through Landau Resonance with Lower Hybrid Waves at the Edge of Reconnection Ion Jets
Authors: Ren Yong , Dai Lei , Wang Chi , Lavraud Benoit 
Published: March 2022

Abstract
We investigate lower hybrid waves in magnetic reconnection at the flank magnetopause using Magnetospheric Multiscale data. Intense emissions of lower hybrid waves are observed at the density boundary of the reconnection ion jet. Associated with the lower hybrid waves, electrons exhibit signatures of heating in the direction parallel to the magnetic field. Near the Landau resonance energy, the electron fluxes parallel to the magnetic field show oscillations at the same frequency as the lower hybrid waves. The electron flux oscillations are in phase or antiphase with the wave parallel electric field. These observations provide direct evidence for Landau resonance. Our analysis indicates that the density gradient at the edge of the ion jets provides free energy for the lower hybrid waves that further contribute to electron heating through Landau damping. These results shed light on the role of wave−particle interactions in the energy conversion chain of reconnection ion jets.
New Approach for Analyzing Dynamical Processes on the Surface of Photospheric Vortex Tubes
Authors: Aljohani Yasir , Fedun Viktor , Ballai Istvan , Silva Suzana S. A. , Shelyag Sergiy , Verth Gary 
Published: March 2022

Abstract
The majority of studies on multi-scale vortex motions employ a two-dimensional geometry by using a variety of observational and numerical data. This approach limits the understanding the nature of physical processes responsible for vortex dynamics. Here, we develop a new methodology to extract essential information from the boundary surface of vortex tubes. 3D high-resolution magneto-convection MURaM numerical data has been used to analyze photospheric intergranular velocity vortices. The Lagrangian averaged vorticity deviation technique was applied to define the centers of vortex structures and their boundary surfaces based on the advection of fluid elements. These surfaces were mapped onto a constructed envelope grid that allows the study of the key plasma parameters as functions of space and time. Quantities that help in understanding the dynamics of the plasma, e.g., Lorentz force, pressure force, and plasma-β were also determined. Our results suggest that, while density and pressure have a rather global behavior, the other physical quantities undergo local changes, with their magnitude and orientation changing in space and time. At the surface, the mixing in the horizontal direction is not efficient, leading to appearance of localized regions with higher/colder temperatures. In addition, the analysis of the MHD Poynting flux confirms that the majority of the energy is directed in the horizontal direction. Our findings also indicate that the pressure and magnetic forces that drive the dynamics of the plasma on vortex surfaces are unbalanced and therefore the vortices do not rotate as a rigid body.
The Infrared Database of Extragalactic Observables from Spitzer. II. The Database and Diagnostic Power of Crystalline Silicate Features in Galaxy Spectra
Authors: Spoon H. W. W. , Hernán-Caballero A. , Rupke D. , Waters L. B. F. M. , Lebouteiller V. , Tielens A. G. G. M. , Loredo T. , Su Y. , Viola V. 
Published: March 2022

Abstract
We present the Infrared Database of Extragalactic Observables from Spitzer (IDEOS), a homogeneous, publicly available, database of 77 fitted mid-infrared observables in the 5.4–36 μm range, comprising measurements for 3335 galaxies observed in the low-resolution staring mode of the Infrared Spectrometer on board the Spitzer Space Telescope. Among the included observables are polycyclic aromatic hydrocarbon fluxes and their equivalent widths, the strength of the 9.8 μm silicate feature, emission-line fluxes, solid-state features, rest-frame continuum fluxes, synthetic photometry, and a mid-infrared spectral classification. The IDEOS spectra were selected from the Cornell Atlas of Spitzer-IRS Sources. To our surprise, we have detected at a >95% confidence level crystalline silicates in the spectra of 786 IDEOS galaxies. The detections range from single-band detections to detections of all fitted crystalline bands (16, 19, 23, 28, and 33 μm). We find the strength of the crystalline silicate bands to correlate with the amorphous silicate strength and the change from an emission to an absorption feature to occur at higher obscuration as the wavelength of the crystalline silicate band is longer. These observed characteristics are consistent with an origin for the amorphous and crystalline silicate features in a centrally heated dust geometry, either an edge-on disk or a cocoon. We find the 23 and 33 μm crystalline silicate bands to be well suited to classify the obscuration level of galactic nuclei, even in the presence of strong circumnuclear star formation. Based on our detection statistics, we conclude that crystalline silicates are a common component of the interstellar medium of galactic nuclei.
Résilience psychologique et matérielle des Forces armées ukrainiennes
Authors: Lambert Michael Éric 
Published: March 2022

Après la sidération du 24 février, les forces armées ukrainiennes sont confrontées à une offensive majeure de la Russie qui dispose d’un rapport de force conséquent. La capacité à se défendre dépend des moyens militaires, mais aussi de la résilience psychologique des Ukrainiens.