bluuebunny/crossref_metadata_2025_split huggingface dataset:
SUBSTANTIATION OF TAKING INTO ACCOUNT THE COMPLEX OF HUMAN PHYSICAL PARAMETERS IN THE DESIGN OF VENTILATION SYSTEMS
Authors: Лобанов Дмитрий Валерьевич , Звенигородский Игорь Иванович , Новосельцев Борис Петрович , Кононова Марина Сергеевна 
Published: March 2022

Проведен анализ существующих нормативных документов и справочно-методической литературы, используемой при проведении расчетов, связанных с определением тепловыделений и газовыделений от людей, занятых различными видами труда. Выявлено неполное соответствие удельных тепловыделений характеристикам тяжести выполняемой работы для различных видов деятельности, полу и возрасту людей. Уточнены характеристики, определяющие понятие условного (среднего) человека, для которого нормируются тепловыделения. Определены расчетные значения тепловыделений с разделением по возрастным категориям. Представлены графики энергетических затрат и их удельных значений для мужчин и женщин разного возраста, выполняющих следующие виды работ: умственный труд, работа легкая, средней тяжести, тяжелая. Проведено сравнение полученных величин энергозатрат с данными нормативных документов для различных категорий работ. Показана актуальность и необходимость учета данных по тепло-, влаго-, газовыделениям от людей с учетом их физических параметров и прочих условий при проектировании систем микроклимата.
We carried out the analysis of existing normative documents and methodical literature used in the calculations related to the determination of heat and gas emissions from people engaged in various types of work. We revealed incomplete correspondence of specific heat emission to the characteristics of the intensity of the work performed for different types of activity, sex and age of people. As well we specified characteristics determining the concept of a reference ( average ) person for whom heat losses are normalized. Estimated values of heat dissipation by age categories are determined too. Also we present the graphs of energy expenditures and their specific values for men and women of different ages performing the following types of work: intellectual work, light work, work of average intensity, hard work. We compared the obtained values of energy expenditures with the data of normative documents for different categories of work. In the end we show relevance and necessity of considering data on heat, moisture, gas emissions from people, taking into account their physical parameters and other conditions in the design of microclimate systems.
STUDY OF RELATIONS BETWEEN GEOMORPHOLOGICAL, TECHNOGENIC, LANDSCAPE FACTORS AND TRAFFIC NOISE IN VORONEZH-CITY
Authors: Прожорина Татьяна Ивановна , Куролап Семен Александрович , Суханов Павел Алексеевич 
Published: March 2022

Приведены результаты исследования зависимости показателей эквивалентного шума от автотранспорта города Воронежа при изменении геоморфологических и техногенно-ландшафтных характеристик территории. Исследование базируется на проведении натурных измерений и построении моделей уровня шума посредством программного обеспечения. Проведен анализ влияния рельефа на распространение шума для двух участков с понижением уровня абсолютных высот местности. Оценено влияние шумозащитных экранов в формировании уровня акустического загрязнения, создаваемого автотранспортом. Исследовано влияние зеленых насаждений на распространение автотранспортного шума. Составлены экспериментальные зависимости эквивалентного уровня автотранспортного шума от рельефа местности, наличия шумозащитных экранов и полосы зеленых насаждений.
The article describes the study of the dependence of equivalent noise indicators from motor transport in the city of Voronezh when changing geomorphological and technogenic-landscape characteristics of the territory. All research is based on application of natural measurements and construction of noise level models by means of software. The work includes: analysis of topography influence on noise propagation for two sites with decreasing absolute terrain heights; assessment of noise protective screens influence in formation of motor transport acoustic pollution level; research of green plantations influence on traffic noise propagation. As well we revealed experimental dependences of the equivalent traffic noise level on the topography, noise protection screens and green areas.
ORGANIZATIONAL, TECHNICAL AND METHODOLOGICAL PREREQUISITES FOR PROFESSIONAL TRANSFORMATION IN HOUSING AND COMMUNAL SERVICES
Authors: Чернышов Леонид Николаевич 
Published: March 2022

Представлены предпосылки трансформации кадрового потенциала предприятий ЖКХ, обусловленные организационно - техническими и технологическими изменениями в отрасли, связанными с насыщением объектов капитального строительства современным высокотехнологичным оборудованием и интеллектуальными системами. Отмечено, что в обозначенных условиях эволюция профессий происходит значительно быстрее. Требования к работнику смещаются из области исполнения функциональных обязанностей на достижение конечного результата. Предложено решение проблемы адаптации существующих квалификаций на рынке труда к требованиям, которые диктует технологическая революция, заключающееся в реализации направлений Национальной системы квалификаций, основные функции которой - это внедрение профессиональных стандартов в сферу труда и образования.
The article presents the prerequisites for the transformation of the personnel potential in housing and communal service enterprises. These changes in the industry are due to organizational, technical and technological shifts associated with extensive appearance of high-tech equipment and intelligent systems at the facilities of capital construction. It is noted that in the indicated conditions the evolution of professions occurs much faster. Today not performing functional duties but achieving final result is the focus of basic requirements to the employee. The author offers a solution to the problem of adapting qualifications that exist at present on the labor market to the requirements of the technological revolution. This solution involves implementation of the National Qualifications System initiatives, the main function of which is to introduce new professional standards into the field of labor and education.
ASSESSMENT OF STABILITY OF LOAD-BEARING STRUCTURES IN NUMERICAL SIMULATIONS
Authors: Кузнецов Дмитрий Николаевич , Понявина Наталия Александровна , Емельянов Дмитрий Игоревич , Сазыкин Виталий Геннадьевич 
Published: March 2022

Численные расчеты устойчивости строительных конструкций требуют разработки эффективных критериев оценки результатов. Оценку результатов расчета устойчивости конструкций целесообразно выполнять с учетом геометрической формы потери устойчивости и назначения элемента строительной конструкции. В статье рассматривается возможность применения последовательности коэффициентов надежности по устойчивости конструкций, в которой значения коэффициентов ранжированы в порядке возрастания последствий отказов конструкций в строительной системе здания или сооружения. Рассмотрен пример численного расчета устойчивости тестовой расчетной схемы стального каркаса здания автосервиса. Расчет устойчивости тестовой двухэтажной рамной системы здания выполнен в вычислительном комплексе SCAD Office, приводятся результаты расчета. Выполнен анализ первых трех геометрических форм потери устойчивости тестовой рамной системы. Подтверждается, что применение шкалы дифференцированных значений коэффициентов надежности для оценки устойчивости конструкций позволит достигнуть более высокой теоретической строгости расчетов, материалоемкости и надежности при проектировании зданий и сооружений. Материалы данной статьи могут быть полезны при проектировании и совершенствовании методик расчета строительных конструкций.
Numerical calculations of the stability of building structures require development of effective criteria for evaluating results. It is advisable to evaluate the results of structural stability calculations with regard to the geometric shape of the loss of stability and purpose of the structural element. The article considers the possibility of applying a sequence of structural stability reliability coefficients in which the coefficient values are ranked in order of increasing consequences of structural failures in a building or structure's construction system. We consider an example of numerical stability calculation of a test design scheme for a steel frame of a car service building. We carried out the calculation of the stability of a test two-storey frame building system with the SCAD Office calculation package, and give the calculation results. As well we perform analysis of the first three geometric forms of stability loss of the test frame system. It is confirmed that the application of the scale of differentiated values of reliability coefficients to assess the stability of structures will allow us to achieve a higher theoretical accuracy of calculations, material capacity and reliability in the design of buildings and structures. The materials of this article can be useful in designing and improving calculation methods for building structures.
Penggunaan Aplikasi Mendeley Sebagai Kutipan Referensi Penelitian Pada Mahasiswa Akhir STEBIS IGM
Authors: Salim Amir 
Published: March 2022

Abstrak
Kegiatan pengabdian kepada masyarakat ini merupakan pemberian pelatihan tentang cara menggunakan aplikasi Mendeley bagi mahasiswa di Sekolah Tinggi Ekonomi dan Bisnis Syariah (STEBIS) Indo Global Mandiri yang akan menyelesaikan tugas akhir atau skripsi. Pelatihan ini dilakukan selama 3(tiga) hari dan pelatihan tentang cara menggunakan software refrensi Mendeley untuk windows dilakukan tanggal 25 Februari 2021. Pelatihan ini dilakukan secara online. Mahasiswa yang mengikuti adalah mahasiswa semester 7 dan semester 8. Pelatihan ini diharapkan dapat memberikan pencerahan kepada mahasiswa agar dapat melakasanakan tugas akhir atau skripsi dengan baik terutama membantu mereka untuk menggunakan aplikasi Mendeley sebagai kutipan refrensi.
The Effects of Okra (Abelmoschus esculentus L.) Immersion Water on Changes in High-Density Lipoprotein and Low-Density Lipoprotein Levels in High Fat Diet Wistar Rat Model
Authors: Setyawati Ika 
Published: March 2022

Background. The mortality rate due to cardiovascular disease increases; one of the effects of hypercholesterolemia conditions, dyslipidemia, hypertriglyceridemia, and metabolic syndrome, not handled properly and thoroughly. This phenomenon becomes the factor that the researchers took this research topic. This study aims to determine okra (Abelmoschus esculentus L.) immersion water on an increase in high density lipoprotein (HDL) levels and decrease in LDL (low density lipoprotein) levels in high fat diet model Wistar rats.
Methods. This experimental study used 30 Wistar male rats (Rattus norvegicus) divided into six groups, namely normal rats (P1), positive control (P2), standard (P3), dose 1 treatment groups (P4), dose 2 treatment groups (P5), and dose 2 treatment groups (P6). The data were collected by measuring HDL and LDL levels before and after receiving okra (Abelmoschus esculentus L.) immersion water. The data were analyzed by paired sample t-test, Wilcoxon test, ANOVA test and Kruskal-Wallis test.
Results. This research showed a significant difference in the average level of HDL and LDL in all treatment groups (P4, P5, and P6) after induction of Abelmoschus esculentus L. in a high-fat diet rat model (p <0.05).
Conclusion. It can be concluded that the administration of okra (Abelmoschus esculentus L.) immersion water could be used to increase HDL levels and decrease LDL levels in high fat diet model Wistar rats (p <0.05).
THE EFFECT OF DUOLINGO USAGE ON STUDENTS’ VOCABULARY MASTERY OF SEVENTH-GRADE STUDENTS AT MTs PAB 1 HELVETIA
Authors: Ali Nurbaiti 
Published: March 2022

Due to Covid-19 pandemic, most of teaching learning process was not conducted at class. The teacher and students had the teaching learning process via online on the internet. This situation occurred serious problem for the students related to the teaching learning goals. Most of students found more difficulties in learning English. Less interactions at class made their vocabulary knowledge and ability became low. They had no chance to explore their vocabulary. In fact, they were difficult to mention some vocabularies around them. They also felt difficult to share their opinion by using English. This research aimed to know the difference, increase or improvement and effect of Duolingo usage on students’ vocabulary mastery. This research was a quantitative approach. The research location was at MTs PAB 1 Helvetia on Jl. Veteran Pasar IV Helvetia with sixty students as the sample. The sample was divided into Experimental and Control group. The Experimental group was taught vocabulary by using Duolingo while the Control group was taught vocabulary by common method. The students’ score result was the primer data and analyzed by using T-Test formula. The calcualtion used SPSS (Statistical Package for Social Science) 20.0 to count the data as valid as it was. The research finding proved that there was a significance difference, increase or improvement and effect of Duolingo usage on students vocabulary mastery. Duolingo usage affected students’ vocabulary mastery of the seventh-grade students at MTs PAB 1 Helvetia. Keywords : Duolingo, Vocabulary Mastery
The 3D Kinematics of the Orion Nebula Cluster: NIRSPEC-AO Radial Velocities of the Core Population
Authors: Theissen Christopher A. , Konopacky Quinn M. , Lu Jessica R. , Kim Dongwon , Zhang Stella Y. , Hsu Chih-Chun , Chu Laurie , Wei Lingfeng 
Published: March 2022

Abstract
The kinematics and dynamics of stellar and substellar populations within young, still-forming clusters provide valuable information for constraining theories of formation mechanisms. Using Keck II NIRSPEC+AO data, we have measured radial velocities for 56 low-mass sources within 4′ of the core of the Orion Nebula Cluster (ONC). We also remeasure radial velocities for 172 sources observed with SDSS/APOGEE. These data are combined with proper motions measured using HST ACS/WFPC2/WFC3IR and Keck II NIRC2, creating a sample of 135 sources with all three velocity components. The velocities measured are consistent with a normal distribution in all three components. We measure intrinsic velocity dispersions of (

σ

v

α

,

σ

v

δ

,

σ

v

r

) = (1.64 ± 0.12, 2.03 ± 0.13,

2.56

−
0.17

+
0.16

) km s−1. Our computed intrinsic velocity dispersion profiles are consistent with the dynamical equilibrium models from Da Rio et al. (2014) in the tangential direction but not in the line-of-sight direction, possibly indicating that the core of the ONC is not yet virialized, and may require a nonspherical potential to explain the observed velocity dispersion profiles. We also observe a slight elongation along the north–south direction following the filament, which has been well studied in previous literature, and an elongation in the line-of-sight to tangential velocity direction. These 3D kinematics will help in the development of realistic models of the formation and early evolution of massive clusters.
Gamma-Ray Burst Prompt Emission Spectrum and E
p Evolution Patterns in the ICMART Model
Authors: Shao Xueying , Gao He 
Published: March 2022

Abstract
In this paper, we simulate the prompt emission light curve, spectrum, and E
p evolution patterns of gamma-ray bursts (GRBs) within the framework of the Internal-collision-induced Magnetic Reconnection and Turbulence (ICMART) model. We show that this model can produce a Band-shaped spectrum, whose parameters (E
p, α, β) could follow the typical distribution of GRB observations, as long as the magnetic field and the electron acceleration process in the emission region are under appropriate conditions. On the other hand, we show that for one ICMART event, E
p evolution is always a hard-to-soft pattern. However, a GRB light curve is usually composed of multiple ICMART events that are fundamentally driven by the erratic activity of the GRB central engine. In this case, we find that if one individual broad pulse in the GRB light curve is composed of multiple ICMART events, the overall E
p evolution could be disguised as an intensity-tracking pattern. Therefore, mixed E
p evolution patterns can coexist in the same burst, with a variety of combined patterns. Our results support the ICMART model as a competitive model to explain the main properties of GRB prompt emission. The possible challenges faced by the ICMART model are also discussed in detail.
Asteroseismology of 3642 Kepler Red Giants: Correcting the Scaling Relations Based on Detailed Modeling
Authors: Li 李 Tanda 坦达 , Li 李 Yaguang 亚光 , Bi 毕 Shaolan 少兰 , Bedding Timothy R. , Davies Guy , Du 杜 Minghao 明昊 
Published: March 2022

Abstract
This paper presents a correction to the scaling relations for red giant stars using model-based masses and radii. We measure radial-mode frequencies from Kepler observations for 3642 solar-like oscillators on the red giant branch and use them to characterize the stars with grid-based modeling. We determine fundamental stellar parameters with good precision: the typical uncertainty is 4.5% for mass, 16% for age, 0.006 dex for surface gravity, and 1.7% for radius. We also achieve good accuracy for estimated masses and radii, based on a comparison with those determined for eclipsing binaries. We find a systematic offset of ∼15% in mass and ∼7% in radius between the modeling solutions and the scaling relations. Further investigation indicates that these offsets are mainly caused by a systematic bias in the Δν scaling relation: the original scaling relation underestimates the Δν value by ∼4%, on average, and it is important to correct for the surface term in the calibration. We find no significant offset in the

ν

max

scaling relation, although a clear metallicity dependence is seen and we suggest including a metallicity term in the formulae. Lastly, we calibrate new scaling relations for red giant stars based on observed global seismic parameters, spectroscopic effective temperatures and metallicities, and modeling-inferred masses and radii.
A New Catalog of Head–Tail Radio Galaxies from the VLA FIRST Survey
Authors: Sasmal Tapan K. , Bera Soumen , Pal Sabyasachi , Mondal Soumen 
Published: March 2022

Abstract
The head–tail (HT) morphology of radio galaxies is seen for a class of radio sources where the primary lobes are being bent in the intercluster weather due to strong interactions between the radio jets and their respective intracluster medium. A systematic search has been carried out for new HT radio galaxies from the Very Large Array Faint Images of the Radio Sky at Twenty-Centimeters survey database at 1400 MHz. Here, we present a catalog of 717 new HT sources, among which 287 are narrow-angle tail (NAT) sources whose opening angle between the two lobes is less than 90°, and 430 are wide-angle tail (WAT) whose the opening angle between the two lobes is greater than 90°. NAT radio sources are characterized by tails bent in a narrow “V”-like shape; the jet bending in the case of WAT radio galaxies are such that the WATs exhibit wide “C”-like morphologies. Optical counterparts are found for 359 HT sources. We report HT sources with luminosity ranges 1038 ≤ L
1.4 GHz ≤ 1045 erg s−1 and redshifts up to 2.01. The various physical properties of these HT sources are mentioned here. Some statistical studies have been done for this large number of newly discovered HT sources.
Pitfalls of Periodograms: The Nonstationarity Bias in the Analysis of Quasiperiodic Oscillations
Authors: Hübner Moritz , Huppenkothen Daniela , Lasky Paul D. , Inglis Andrew R. 
Published: March 2022

Abstract
Quasiperiodic oscillations (QPOs) are an important key to understand the dynamic behavior of astrophysical objects during transient events like gamma-ray bursts, solar flares, and magnetar flares. Searches for QPOs often use the periodogram of the time series and perform spectral density estimation using a Whittle likelihood function. However, the Whittle likelihood is only valid if the time series is stationary since the frequency bins are otherwise not statistically independent. We show that if time series are nonstationary, the significance of QPOs can be highly overestimated and estimates of the central frequencies and QPO widths can be overconstrained. The effect occurs if the QPO is only present for a fraction of the time series and the noise level is varying throughout the time series. This can occur, for example, if background noise from before or after the transient is included in the time series or if the low-frequency noise profile varies strongly over the time series. Thus, we highlight the importance of careful segment selection prior to the analysis. We confirm the presence of this bias in previously reported results from solar flare data and show that significance can be highly overstated. Finally, we provide some suggestions that help identify whether an analysis is affected by this bias.
Dust Resurgence in Protoplanetary Disks Due to Planetesimal–Planet Interactions
Authors: Bernabò Lia Marta , Turrini Diego , Testi Leonardo , Marzari Francesco , Polychroni Danai 
Published: March 2022

Abstract
Observational data on the dust content of circumstellar disks show that the median dust content in disks around pre-main-sequence stars in nearby star-forming regions seems to increase from ∼1 to ∼2 Myr and then decline with time. This behavior challenges the models where the small dust grains steadily decline by accumulating into larger bodies and drifting inwards on a short timescale (≤1 Myr). In this Letter we explore the possibility to reconcile this discrepancy in the framework of a model where the early formation of planets dynamically stirs the nearby planetesimals and causes high-energy impacts between them, resulting in the production of second-generation dust. We show that the observed dust evolution can be naturally explained by this process within a suite of representative disk-planet architectures.
NGC 5846-UDG1: A Galaxy Formed Mostly by Star Formation in Massive, Extremely Dense Clumps of Gas
Authors: Danieli Shany , van Dokkum Pieter , Trujillo-Gomez Sebastian , Kruijssen J. M. Diederik , Romanowsky Aaron J. , Carlsten Scott , Shen Zili , Li Jiaxuan , Abraham Roberto , Brodie Jean , Conroy Charlie , Gannon Jonah S. , Greco Johnny 
Published: March 2022

Abstract
It has been shown that ultra-diffuse galaxies (UDGs) have higher specific frequencies of globular clusters, on average, than other dwarf galaxies with similar luminosities. The UDG NGC 5846-UDG1 is among the most extreme examples of globular cluster–rich galaxies found so far. Here we present new Hubble Space Telescope observations and analysis of this galaxy and its globular cluster system. We find that NGC 5846-UDG1 hosts 54 ± 9 globular clusters, three to four times more than any previously known galaxy with a similar luminosity and higher than reported in previous studies. With a galaxy luminosity of L

V,gal ≈ 6 × 107
L
⊙ (M
⋆ ≈ 1.2 × 108
M
⊙) and a total globular cluster luminosity of L

V,GCs ≈ 7.6 × 106
L
⊙, we find that the clusters currently comprise ∼13% of the total light. Taking into account the effects of mass loss from clusters during their formation and throughout their lifetime, we infer that most of the stars in the galaxy likely formed in globular clusters, and very little to no “normal” low-density star formation occurred. This result implies that the most extreme conditions during early galaxy formation promoted star formation in massive and dense clumps, in contrast to the dispersed star formation observed in galaxies today.
The Search for a Counterpart to NuSTAR J053449+2126.0
Authors: Rodriguez Antonio C. , Yao Yuhan , De Kishalay , Kulkarni S. R. 
Published: March 2022

Abstract
(ATel #15171) have recently reported the discovery of an X-ray source, NuSTAR J053449+2126.0, during a calibration observation which took place on 2020 April 25. We scan the Zwicky Transient Facility alerts and archival photometry to determine the nature of the source. Palomar Gattini-IR is searched as well. We identify no obvious counterpart candidate. Follow-up X-ray and optical studies are needed to determine the true counterpart.