bluuebunny/crossref_metadata_2025 huggingface dataset:
Perinatal predictors and ultrasound diagnostics of newborn respiratory disorders
Authors: Medvedenko G. , Tarasyuk B. , Lukyanova I. , Dzyuba E.
Published: November 2021

Respiratory distress is one of the most common causes of neonatal morbidity and mortality. The aim of this study was to determine perinatal factors and ultrasonographic features of newborn respiratory disorders. We examined 49 children aged 0-28 days who had manifestations of type 1 RDS (group 1 – 24 children) and pneumonia caused by intrauterine infection or massive meconium aspiration syndrome (group 2 – 25 children). The control group consisted of 20 newborn. The control group consisted of 20 newborns. Data analysis showed that the presence of extra genital pathology that had mother, significantly influenced on the development of respiratory disorders (group 1 – 75 % ,and group 2 – 60 % compared to the control group – 20 %), as well as a high frequency of chronic fetal hypoxia and placental dysfunction complicated by fetal distress (in group 1 – 75 % of cases, in group 2 – 40 %)
It was found that ultrasound examination of the lungs is an informative, safe method for diagnosing pneumonia, pneumothorax, the presence of fluid in the pleural cavity of newborn respiratory disorders, and provides an opportunity to monitor pathological changes during treatment.
2021 Outer Space Security Conference Report
Authors: Garzón Maceda María , Krabill Eleanor , Azcárate Ortega Almudena
Published: November 2021

Post Conference Report for UNIDIR's Outer Space Security Conference 2021, held the 27 and 28 September 2021. The discussion over the course of OS21 is summarised in this document, which also identifies key takeaway points.
Streaming data processing tools for intelligent risk management in condition of uncertainty
Authors:   Branch of the National Research University ", Senkov Aleksey V. ,   MPEI",   in Smolensk, Ersh Viktoriya S. ,   Branch of the National Research University "MPEI" in Smolensk
Published: November 2021

The modern system of industrial risk management at enterprises is based on the basic principles laid down in the standards of industrial safety and labor protection, and presupposes, basically, long-term precedent risk management - responding to their occurrence, analyzing the results, and taking measures to reduce risks. At the same time, with rare exceptions, the management of extremely rapidly developing risk situations, carried out in the course of their development, remains outside the brackets. For example, the failure of some machine tools, or their parts, can be predicted in advance by the parameters of their operation (the nature and level of noise, vibration, temperature parameters, etc.). Previously, the management of such risk situations was complicated by the lack or high cost of automated systems capable of responding with the required delays. The features of risk management of extremely rapidly developing risk situations are considered. A comparative analysis of modern message brokers suitable for building intelligent risk management systems in conditions of uncertainty has been carried out. The architecture of software tools for intelligent risk management in conditions of uncertainty based on the Apache Kafka message broker is proposed. A comparative analysis of the implementation of fuzzy data processing based on Kafka Streams within Apache Kafka and a separate application outside Apache Kafka is carried out, an estimate of the load generated by such software is obtained.
A CUSTOMER PERCEPTION TOWARDS ONLINE SHOPPING AND OFFLINE SHOPPING
Authors:   Research Scholar, Dr.MGR Educational and Research Institute, Maduravoyal, Chennai, Farzana Banu M , Jayam Dr ,   Professor and Head, Department of Human Resource Management, Dr.MGR Educational and Research Institute, Maduravoyal, Chennai
Published: November 2021

The foremost aim of this research is to inspect the customer’s insights about online & offline shopping also test the satisfaction level of customers about the shopping criteria and the respective study is held in Chennai. However, rapid growth has emerged in the retail marketing sector in regards to digital shopping & direct shopping. In this case, the current research tells certain scenarios, firstly, to study the customer satisfaction that is to check whether they are interested in offline or online shopping, secondly, customer attraction that is what mode (online, offline) makes them attracted, thirdly, observation of the customer feedbacks about the shopping methods. The methodology adopted is collection of primary data from 25 male and 25 female customers and analyze it using descriptive analysis, and chi-square test. To conclude, from the study conducted on Customer perception towards Online shopping is good when compared to Offline shopping and there is significant increase in Online shopping
A REVIEW ON PERFORMANCE INVESTIGATION OF ROUTING PROTOCOLS IN WIRELESS SENSOR NETWORKS
Authors:   Associate Professor, Department of CSE, School of Engineering and Technology, Jain (To Be Deemed) University, Bangalore, India, Yarramsetti Sarojini , J Anvar Shathik ,   Associate Professor, Department of CSE, Srinivas University College of Engineering and Technology, Mangalore, India, P S Renisha ,   Assistant Professor , , Department of CSE , Srinivas University College of Engineering and Technology, Mangalore, India
Published: November 2021

Assistant Professor , , Department of CSE , Srinivas University College of Engineering and Technology, Mangalore, India
Peculiarities of the influence of media products on the level of adolescent anxiety
Authors: HREK Olena
Published: November 2021

The article considers the problem of the influence of modern media products on the psychological characteristics of the individual, the violation of its information and psychological security and, as a consequence, the increase in the level of anxiety in adolescents. The subjects were 90 adolescents aged 13-15, who were resting in the children's center "Young Guard". The following research methods were used: methods of deviant analysis of media text by S.V. Knyzhnykova, methods of studying the level of anxiety by P. Kondash, methods by CH.D. Spielberger to detect personal and situational anxiety (adaptation by Yu.L. Khanin), the test of viability by S. Maddi (adaptation by D.O. Leontiev, E.I. Rasskazov). Spearman's correlation method and the Mann-Whitney U test were used for statistical analysis. The results showed that modern adolescents mostly choose the Internet and television among the media, do not approve of aggressive films, but consider aggression as a quality of a poorly educated person and as a result of self-defense against injustice; they consider cruel films and computer games dangerous, they are outraged by the following media stories - a naturalistic depiction of violence, a demonstration of perversions, a detailed depiction of death and abuse of people. Adolescents have an average level of vitality, but the level of involvement is low, the level of control is medium, and the level of risk appetite is high; the average level of situational and personal anxiety prevails, self-esteem and interpersonal anxiety prevails. It has been proven that such media products as violent films and computer games, films with scenes of various types of violence and murders, as well as media stories such as depictions of bullying and violence against people, their deaths and perversions affect the personality of adolescents and contribute to situational anxiety, interpersonal anxiety and general anxiety.
Розвиток комунікативної культури особистості майбутнього фахівця як необхідна умова активної адаптації
Authors: NIKITINA Iryna
Published: November 2021

Стаття акцентує увагу на необхідності розвитку комунікативної культури майбутнього фахівця під час професійної підготовки в умовах вищої школи.Формування моделі ділової комунікації, адекватної вимогам нового статусу здобувача вищої освіти, сприяє активній адаптації суб'єкта навчально-професійної діяльності. Активна адаптація це – система цілеспрямованих, активних дії здобувача, спрямованих на зміну себе, власної поведінки та умов навчально-професійної діяльності та життєдіяльності в цілому. Вона застосовується, коли необхідно засвоїти нове: нову модель навчання, поведінки, комунікації, систему цінностей, етично-моральних і культурних норм взаємодії. У результаті здобувач розвиває особистістно-професійний адаптивний потенціал фахівця та індивідуальний стиль якісного діалогічного спілкування з діловими партнерами і готовність до професійної та соціальної самореалізації. В умовах ЗВО потрібно організувати спеціальну роботу з розвитку ресурсу адаптивності особистості першокурсника у перехідний період від системи середньої до системи вищої освіти з метою забезпечення розвитку нової моделі навчання, поведінки та спілкування. Потреба у спілкуванні є домінуючою потребою розвитку особистості у період повноліття. ЇЇ задоволення сприяє розвитку позитивного самоставлення особистості. Результатом цього є позитивна “Я-концепція” фахівця. Вона визначається як ключова психологічна детермінанта його фахового та кар'єрного зростання. Тому особливу увагу важливо приділити формуванню комунікативної культури фахівця у вищій щколі. Комунікативна культура особистості містить систему знань, норм, цінностей і зразків поведінки, прийнятих в суспільстві, та вміннь органічно, природно й невимушено реалізувати їх у діловому й емоційному спілкуванні. Вона забезпечує мотивацію суб'єкта та самореалізацію функцій навчання, виховання й розвитку майбутнього фахівця. Психологи виділяють такі її функції: контактну; інформативну; спонукальну; координаційну; емотивну; здійснення психологічного впливу; самопрезентативну тощо. Комунікативна культура здобувача вищої освіти та його активна адаптація визначають якість фахової підготовки, ефективність подальшої самореалізації та соціальної відповідальності у професійній установі.
Формування цифрової компетентності студентів закладів вищої освіти
Authors: DANCHENKO Iryna , TKACHENKO Tatyana , TYURINA Valentyna
Published: November 2021

Проблема формування цифрової компетентності студентів закладів вищої освіти як майбутніх фахівців визначено як одну з провідних проблем, що стоять перед сучасними закладами вищої освіти України. У статі визначено основні аспекти формування цифрової компетентності; обґрунтовано фактори, що зумовлюють ефективність формування цифрової компетентності студентів. На основі аналізу науково-методичної літератури досліджено поняття компетентності та цифрової компетентності. У статті описано теоретичні та практичні аспекти формування цифрової компетентності студентів закладів вищої освіти; обґрунтовано необхідність подальшого дослідження механізмів становлення відносини особистості та групи до цифрових технологій, на основі яких могли б бути вироблені рекомендації не тільки для подолання технофобії, але і для підвищення чутливості суспільства по відношенню до технологічних викликів, рефлективності відносно можливостей, що відкриваються і техногенних ризиків; доведено необхідність більш диференційованого підходу до вивчення колективних уявлень про наслідки впровадження різних технологій, що враховує очікування, мрії, надії, побоювання, ідеали, які визначають оцінку тих чи інших технологічних змін різними соціальними групами; доказано необхідність розробки методології оцінки соціально-психологічних наслідків впровадження конкретних технологій та розроблення і впровадження педагогічних технологій щодо ефективності формування цифрової компетентності студентів закладів вищої освіти. У якості дослідницької задачі авторами було визначено компоненти ставлення до нових технологій, а саме: когнітивні, афективні і діяльнісні, які мають різну детермінацію і які необхідно враховувати в процесі формування цифрової компетентності студентів закладів вищої освіти; оцінено ефективність запропонованих методик формування цифрової компетентності студентів закладів вищої освіти.
Конвергентні медіа як інструмент для подолання стресу в освітньому середовищі ЗВО упродовж тривалого карантину
Authors: DUKHANINA Nataliia , LESYK Ganna
Published: November 2021

У статті розглядаються та аналізуються так звані нові конвергентні медіа за умов змін медіапростору та еволюційних технологічних змін як інструмент сучасного педагога та як феномен новітньої педагогічної культури. Окреслено головні можливості інструментарію для навчання іноземної мови через запозичення з практики мас-медіа. Акцентовано на причинах стресу, визначенні основних чинників та факторів, що можуть пом’якшити негативні чинники стресу. Наголошено на медіаконвергентності як інструменті сучасної освіти. Виявлені основні причини дисбалансу між викладачем та студентом в процесі дистанційного навчання. Установлено, що медіаконвергенція є потужним інструментом і технічними можливостями практичного застосування дистанційної форми навчання в умовах тривалого карантину.
Теоретичні основи формування у майбутніх економістів вмінь лінгво-самоосвіти
Authors: CHERNYAVSKY Bogdan
Published: November 2021

У статті розкрито сутність лінгвосамоосвіти, проаналізовано особливості лінгвосамоосвітньої діяльності майбутніх економістів. Виокремлено та схарактеризовано перелік вмінь, які забезпечують ефективність лінгвосамоосвітньої діяльності майбутніх економістів, розкрито вітчизняний та зарубіжний досвід їх формування.
The game technology use for the various fields’ specialists training
Authors: DATSKO Oleksandra , VYTRYKUSH Nataliia , PARANYAK Nadiia , ROMANIV Anna
Published: November 2021

The article considers game learning technologies that can be used in higher education institutions. The expedient methods for training different specialists, like managers, teachers, lawyers are analyzed. There is paid attention to the training of critical infrastructure specialists who will apply their knowledge in rescuing people.
PENGARUH PELATIHAN JUMP ROPE TERHADAP DAYA LEDAK OTOT TUNGKAI PADA PERENANG USIA DINI
Authors: Dewi Komang Ayu Krisna
Published: November 2021

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan jump rope dan terhadap daya ledak otot tungkai pada perenang usia dini. Penelitian ini menggunakan metode penelitian quasi-experimental dengan pendekatan one group pretest post-test design, yang dilakukan kepada 16 orang perenang kelompok usia IV (< 10 tahun) Jalak Bali Swimming Club. Daya ledak otot tungkai perenang usia muda diukur menggunakan vertical jump dan waktu tempuh renang yang berfokus pada gerakan kaki yang dibantu oleh swimming kick board dalam jarak 25 meter. Hasil pengukuran selanjutnya dilakukan analisis, paired sample t-test untuk mengetahui pengaruh pelatihan jump rope. Hasil analisis menunjukkan bahwa pelatihan jump rope berpengaruh signifikan terhadap daya ledak otot tungkai pada perenang usia dini, baik pengukuran di darat maupun di air (sig. = 0.000 < 0.05, H0 ditolak). Sehingga, dapat disimpulkan penelitian ini adalah pelatihan jump rope dapat digunakan sebagai latihan rutin yang dilakukan oleh perenang usia dini di klub renang untuk meningkatkan daya ledak otot tungkai. Daya ledak otot tungkai yang maksimal akan dapat meningkatkan prestasi perenang usia dini dalam berkompetisi.
DAMPAK COVID-19 TERHADAP IMPLEMENTASI PEMBELAJARAN DARING DI SEKOLAH DASAR
Authors: Juliawan I Wayan , Bawa Pande Wayan , Qondias Dimas
Published: November 2021

Penelitian ini bertujuan untuk mengidentifikasi implementasi pembelajaran daring dirumah pada siswa Sekolah Dasar akibat dari adanya pandemik COVID-19. Penelitian menggunakan penelitian kepustakaan dimana dalam mengumpulkan informasi data dengan teknik dokumentasi yaitu mencari data mengenai hal-hal yang relevan dari berbagai macam yang ada di perpustakaan seperti dokumen, buku, majalah, berita. Kriteria artikel dan berita yang dipilih yaitu adanya pembahasan tentang dampak COVID-19 dan pembelajaran daring di sekolah dasar. Dari 15 sumber yang didapatkan, kemudian dipilih yang paling relevan dan diperoleh 4 artikel dan 7 berita yang dipilih. Hasil dalam penelitian, menunjukkan bahwa dampak COVID-19 terhadap implementasi pembelajaran daring di sekolah dasar dapat terlaksanakan dengan cukup baik. Hal ini dapat dilihat dari hasil data 4 artikel dan 7 berita yang menunjukan bahwa dampak COVID-19 terhadap implementasi pembelajaran daring di SD dapat terlaksana dengan cukup baik apabila adanya kerjasama antara guru, siswa dan orang tua dalam belajar di rumah.
PENGEMBANGAN BAHAN AJAR GEOMETRI RUANG SISI LENGKUNG BERBASIS MODEL LEARNING CYCLE 7E TERINTERGRASI KONTEN BUDAYA LOKAL NGADA PADA SISWA SMP
Authors: Nango Patrisia , Rawa Natalia Rosalina , Wangge Maria Carmelita Tali
Published: November 2021

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PERSEPSI MAHASISWA TERHADAP MEDIA PEMBELAJARAN E-LEARNING
Authors: Ota Maria Kristina
Published: November 2021

E-learning merupakan salah satu media pembelajaran yang digunakan selama pandemi covid-19. E-learning sangat penting bagi mahasiswa untuk mengakses materi yang disampaikan oleh dosen. Penelitian ini bertujuan untuk mengetahui persepsi mahasiswa terhadap implementasi dari media E-learning selama learning from home. Deskriptif kualitatif merupakan metode dari peneliian ini dengan instrument penelitiannya adalah observasi dan wawancara Subjek dari peneliian ini mahasiswa semester 4 (empat) yang berjumlah 15 (lima belas) orang. Hasil dari penelitian menunjukkan bahwa media pembelajaran E-learning yang diimplementasikan selama pembelajaran daring  sangatlah bermanfaat bagi mahasiswa. Hal ini dibuktikan dengan respon mahasiswa terhadap pertanyaan yang diberikan pada saat wawancara adalah seperti media pembelajaran E-learning sangat membantu selama proses pembelajaran daring, selain itu juga materi pembelajaran yang disampaikan dapat dipahami, dan dapat diakses tanpa batas waktu. Kesimpulan dari penelitan ini adalah media pembelajaran E-learning yang digunakan selama selama pandemic covid-19 sangat baik dan dapat membantu memperlancar proses pembelajaran serta menambah wawasan mahasiswa dalam pemanfatan IT.
Modeling Grain Rotational Disruption by Radiative Torques and Extinction of Active Galactic Nuclei
Authors: Giang Nguyen Chau , Hoang Thiem
Published: November 2021

Extinction curves observed toward individual Active Galactic Nuclei (AGN) usually show a steep rise toward far-ultraviolet (FUV) wavelengths and can be described by the Small Magellanic Cloud (SMC)-like dust model. This feature suggests the dominance of small dust grains of size a ≤ 0.1 μm in the local environment of AGN, but the origin of such small grains is unclear. In this paper, we aim to explain this observed feature by applying the RAdiative Torque Disruption (RATD) to model the extinction of AGN radiation from FUV to mid-infrared (MIR) wavelengths. We find that in the intense radiation field of AGN, large composite grains of size a ≥ 0.1 μm are significantly disrupted to smaller sizes by RATD up to d
RATD > 100 pc in the polar direction and d
RATD ∼ 10 pc in the torus region. Consequently, optical–MIR extinction decreases, whereas FUV-near-ultraviolet extinction increases, producing a steep far-UV rise extinction curve. The resulting total-to-selective visual extinction ratio thus significantly drops to R
V < 3.1 with decreasing distances to AGN center due to the enhancement of small grains. The dependence of R
V with the efficiency of RATD will help us to study the dust properties in the AGN environment via photometric observations. In addition, we suggest that the combination of the strength between RATD and other dust destruction mechanisms that are responsible for destroying very small grains of a ≤ 0.05 μm is the key for explaining the dichotomy observed “SMC” and “gray” extinction curve toward many AGN.
The Green Bank Northern Celestial Cap Pulsar Survey. VI. Discovery and Timing of PSR J1759+5036: A Double Neutron Star Binary Pulsar
Authors: Agazie G. Y. , Mingyar M. G. , McLaughlin M. A. , Swiggum J. K. , Kaplan D. L. , Blumer H. , Chawla P. , DeCesar M. , Demorest P. B. , Fiore W. , Fonseca E. , Gelfand J. D. , Kaspi V. M. , Kondratiev V. I. , LaRose M. , van Leeuwen J. , Levin L. , Lewis E. F. , Lynch R. S. , McEwen A. E. , Al Noori H. , Parent E. , Ransom S. M. , Roberts M. S. E. , Schmiedekamp A. , Schmiedekamp C. , Siemens X. , Spiewak R. , Stairs I. H. , Surnis M.
Published: November 2021

The Green Bank North Celestial Cap survey is a 350 MHz all-sky survey for pulsars and fast radio transients using the Robert C. Byrd Green Bank Telescope. To date, the survey has discovered over 190 pulsars, including 33 millisecond pulsars and 24 rotating radio transients. Several exotic pulsars have been discovered in the survey, including PSR J1759+5036, a binary pulsar with a 176 ms spin period in an orbit with a period of 2.04 days, an eccentricity of 0.3, and a projected semi-major axis of 6.8 light seconds. Using seven years of timing data, we are able to measure one post–Keplerian parameter, advance of periastron, which has allowed us to constrain the total system mass to 2.62 ± 0.03 M
⊙. This constraint, along with the spin period and orbital parameters, suggests that this is a double neutron star system, although we cannot entirely rule out a pulsar-white dwarf binary. This pulsar is only detectable in roughly 45% of observations, most likely due to scintillation. However, additional observations are required to determine whether there may be other contributing effects.
CHIME/FRB Catalog 1 Results: Statistical Cross-correlations with Large-scale Structure
Authors: Rafiei-Ravandi Masoud , Smith Kendrick M. , Li Dongzi , Masui Kiyoshi W. , Josephy Alexander , Dobbs Matt , Lang Dustin , Bhardwaj Mohit , Patel Chitrang , Bandura Kevin , Berger Sabrina , Boyle P. J. , Brar Charanjot , Breitman Daniela , Cassanelli Tomas , Chawla Pragya , Adam Dong Fengqiu , Fonseca Emmanuel , Gaensler B. M. , Giri Utkarsh , Good Deborah C. , Halpern Mark , Kaczmarek Jane , Kaspi Victoria M. , Leung Calvin , Lin Hsiu-Hsien , Mena-Parra Juan , Meyers B. W. , Michilli D. , Münchmeyer Moritz , Ng Cherry , Petroff Emily , Pleunis Ziggy , Rahman Mubdi , Sanghavi Pranav , Scholz Paul , Shin Kaitlyn , Stairs Ingrid H. , Tendulkar Shriharsh P. , Vanderlinde Keith , Zwaniga Andrew
Published: November 2021

The CHIME/FRB Project has recently released its first catalog of fast radio bursts (FRBs), containing 492 unique sources. We present results from angular cross-correlations of CHIME/FRB sources with galaxy catalogs. We find a statistically significant (p-value ∼ 10−4, accounting for look-elsewhere factors) cross-correlation between CHIME FRBs and galaxies in the redshift range 0.3 ≲ z ≲ 0.5, in three photometric galaxy surveys: WISE × SCOS, DESI-BGS, and DESI-LRG. The level of cross-correlation is consistent with an order-one fraction of the CHIME FRBs being in the same dark matter halos as survey galaxies in this redshift range. We find statistical evidence for a population of FRBs with large host dispersion measure (∼400 pc cm−3) and show that this can plausibly arise from gas in large halos (M ∼ 1014
M
⊙), for FRBs near the halo center (r ≲ 100 kpc). These results will improve in future CHIME/FRB catalogs, with more FRBs and better angular resolution.
Constraints on the Occurrence of ‘Oumuamua-Like Objects
Authors: Levine W. Garrett , Cabot Samuel H. C. , Seligman Darryl , Laughlin Gregory
Published: November 2021

At present, there exists no consensus in the astronomical community regarding either the bulk composition or the formation mechanism for the interstellar object 1I/2017 U1 (‘Oumuamua). With the goal of assessing the merits of the various scenarios that have been suggested to explain ‘Oumuamua's appearance and observed properties, we report a number of new analyses and provide an up-to-date review of the current hypotheses. We consider the interpretations that can reconcile ‘Oumuamua's observed non-Keplerian trajectory with the nondetection of traditional cometary volatiles. We examine the ability of these proposed formation pathways to populate the galaxy with sufficient interstellar objects such that the detection of ‘Oumuamua by Pan-STARRS would be statistically favored. We consider two exotic ices, hydrogen and nitrogen, showing that the frigid temperature requirement for the former and the necessary formation efficiency of the latter pose serious difficulties for these interpretations. Via order-of-magnitude arguments and hydrodynamical cratering simulations, we show that impacts on extrasolar Kuiper Belt analogues are not expected to generate N2 ice fragments as large as ‘Oumuamua. In addition, we discuss observational tests to confirm the presence of these ices in future interstellar objects. Next, we examine the explanations that attribute ‘Oumuamua's properties to other compositions: ultraporous dust aggregates and thin membranes powered by solar radiation pressure, among others. While none of these hypotheses are perfectly satisfactory, we make predictions that will be testable by the Vera Rubin Observatory to resolve the tension introduced by ‘Oumuamua.
Universal Protoplanetary Disk Size under Complete Nonideal Magnetohydrodynamics: The Interplay between Ion-neutral Friction, Hall Effect, and Ohmic Dissipation
Authors: Lee 李 Yueh-Ning 悅寧 , Marchand Pierre , Liu 劉 Yu-Hsuan 宇軒 , Hennebelle Patrick
Published: November 2021

The role of nonideal magnetohydrodynamics has been proven critical during the formation of protoplanetary disks, particularly in regulating their sizes. We provide a simple model to predict the disk size under the interplay among ambipolar diffusion, the Hall effect, and ohmic dissipation. The model predicts a small disk size of around 20 au that depends only sublinearly on disk parameters, for a wide range of initial conditions of subsolar mass and moderate magnetization. It is able to explain phenomena manifested in existing numerical simulations, including the bimodal disk behavior under parallel and antiparallel alignment between the rotation and magnetic field. In the parallel configuration, the disk size decreases and eventually disappears. In the antiparallel configuration, the disk has an outer partition (or pseudodisk), which is flat, shrinking, and short-lived, as well as an inner partition, which grows slowly with mass and is long-lived. Even with significant initial magnetization, the vertical field in the disk can only dominate at the early stage when the mass is low, and the toroidal field eventually dominates in all disks.
Near-infrared Studies of Nova V1674 Herculis: A Shocking Record Breaker
Authors: Woodward C. E. , Banerjee D. P. K. , Geballe T. R. , Page K. L. , Starrfield S. , Wagner R. M.
Published: November 2021

We present near-infrared spectroscopy of Nova Herculis 2021 (V1674 Her), obtained over the first 70 days of its evolution. This fastest nova on record displays a rich emission line spectrum, including strong coronal line emission with complex structures. The hydrogen line fluxes, combined with a distance of

4.7

−
1.0

+
1.3

kpc, give an upper limit to the hydrogen ejected mass of

M

ej

=

1.4

−
1.2

+
0.8

×

10

−
3

M
⊙. The coronal lines appeared at day 11.5, the earliest onset yet observed for any classical nova, before there was an obvious source of ionizing radiation. We argue that the gas cannot be photoionized, at least in the earliest phase, and must be shocked. Its temperature is estimated to be 105.57±0.05 K on day 11.5. Tentative analysis indicates a solar abundance of aluminum and an underabundance of calcium, relative to silicon, with respect to solar values in the ejecta. Further, we show that the vexing problem of whether collisional ionization or photoionization is responsible for coronal emission in classical novae can be resolved by correlating the temporal sequence in which the X-ray supersoft phase and the near-infrared coronal line emission appear.
Prediction Model of Balanced Nutrition Practices among University Students in the COVID-19 Outbreak
Authors: Indah Yusma , Ansyar Dian Ihwana , Ibrahim Irviani Anwar , Suyuti Syarfaini , Hartini Diah Ayu , Dewi Nikmah Utami
Published: November 2021

AIM: Students included in the category of youth need balanced nutrition practices, especially during the COVID-19 outbreak. This study aims to determine the model of balanced nutrition behavior in youth in Gowa Regency, Makassar, Indonesia. MATERIALS AND METHODS: This study was a quantitative study with a cross-sectional study, in which primary data were collected from June to July 2020. The respondents were 597 students at public and private universities located in Gowa Regency who filled the questionnaires. RESULTS: The bivariate analysis results, which were based on the respondents’ characteristics, showed that only age significantly affected balanced nutrition practices (p = 0.048). Based on the independent variables studied, poor knowledge (p = 0.000, ORcrude = 2.229 [CI 1.601–3.105]) and poor attitude (p = 0.001, ORcrude = 1.735 [CI 1.250-2.409]) obtained a significant correlation with poor balanced nutrition practices. The final model of balanced nutrition practices using multivariate analysis indicated that knowledge was the biggest predictor of balanced nutrition (p = 0.000, OR = 2.067 [CI 1.476–2.893]). The number implied that respondents with good knowledge had 2.067 times the opportunity to take balanced nutrition practices than those with less knowledge after controlling for age and attitude variables. CONCLUSION: Producing well-balanced nutrition behavior requires well-balanced nutrition knowledge, including university students who belong to the late adolescent stage.
A convergent finite difference method for computing minimal Lagrangian graphs
Authors: Hamfeldt Brittany Froese , Lesniewski Jacob
Published: November 2021

We consider the numerical construction of minimal Lagrangian graphs, which is related to recent applications in materials science, molecular engineering, and theoretical physics. It is known that this problem can be formulated as an additive eigenvalue problem for a fully nonlinear elliptic partial differential equation. We introduce and implement a two-step generalized finite difference method, which we prove converges to the solution of the eigenvalue problem. Numerical experiments validate this approach in a range of challenging settings. We further discuss the generalization of this new framework to Monge-Ampère type equations arising in optimal transport. This approach holds great promise for applications where the data does not naturally satisfy the mass balance condition, and for the design of numerical methods with improved stability properties.
Bi-objective unrelated parallel machines scheduling problem with worker allocation and sequence dependent setup times considering machine eligibility and precedence constraints
Authors: Foroutan Reza Alizadeh , Rezaeian Javad , Shafipour Milad
Published: November 2021

In today's competitive world, scheduling problems are one of the most important and vital issues. In this study, a bi-objective unrelated parallel machine scheduling problem with worker allocation, sequence dependent setup times, precedence constraints, and machine eligibility is presented. The objective functions are to minimize the costs of tardiness and hiring workers. In order to formulate the proposed problem, a mixed-integer quadratic programming model is presented. A strategy called repair is also proposed to implement the precedence constraints. Because the problem is NP-hard, two metaheuristic algorithms, a multi-objective tabu search (MOTS) and a multi-objective simulated annealing (MOSA), are presented to tackle the problem. Furthermore, a hybrid metaheuristic algorithm is also developed. Finally, computational experiments are carried out to evaluate different test problems, and analysis of variance is done to compare the performance of the proposed algorithms. The results show that MOTS is doing better in terms of objective values and mean ideal distance (MID) metric, while the proposed hybrid algorithm outperforms in most cases, considering other employed comparison metrics.
Single-machine Pareto-scheduling with multiple weighting vectors for minimizing the total weighted late works
Authors: Guo Shuen , Geng Zhichao , Yuan Jinjiang
Published: November 2021

In this paper, we study the single-machine Pareto-scheduling of jobs with multiple weighting vectors for minimizing the total weighted late works. Each weighting vector has its corresponding weighted late work. The goal of the problem is to find the Pareto-frontier for the weighted late works of the multiple weighting vectors. When the number of weighting vectors is arbitrary, it is implied in the literature that the problem is unary NP-hard. Then we concentrate on our research under the assumption that the number of weighting vectors is a constant. For this problem, we present a dynamic programming algorithm running in pseudo-polynomial time and a fully polynomial-time approximation scheme (FPTAS).
Zinc ore supplier evaluation and recommendation method based on nonlinear adaptive online transfer learning
Authors: Li Yudong , Li Yonggang , Sun Bei , Chen Yu
Published: November 2021

Purchasing decisions determine the purchasing cost, which is the largest section of the production cost of zinc smelting enterprise(ZSE). An excellent supplier recommendation is significant for ZSE to reduce the cost. However, during the supplier recommendation process, the nonlinear demand feature of purchasing department varies with the production environment, and there are wrong samples that can affect the supplier recommendation effect. To handle these problems, the recommendation strategy based on a multiple-layer perceptron adaptive online transfer learning algorithm(AOTLMLP) are proposed. In this method, the original prediction function is modified based on MLP nonlinear projective function and adaptive loss function, which enables the AOTLMLP algorithm to tackle the nonlinear classification problems and efficiently follow the demand change of purchasing department, thereby improving the result of the recommendation. The performance of the AOTLMO algorithm is evaluated through a common dataset and a purchasing dataset from a zinc smelter that generated by a supplier evaluation model. It can be assumed that AOTLMLP can ignore the influence of wrong samples and provide an effective recommendation confronting the characteristic of zinc ore purchasing.
Mathematical modelling of COVID-19 disease dynamics: Interaction between immune system and SARS-CoV-2 within host
Authors: Chowdhury S. M. E. K. ,   Department of Mathematics, University of Chittagong, Chattogram 4331, Bangladesh, Chowdhury J. T. , Ahmed Shams Forruque , Agarwal Praveen , Badruddin Irfan Anjum , Kamangar Sarfaraz ,   Science and Math Program, Asian University for Women, Chattogram 4000, Bangladesh,   Department of Mathematics, Anand International College of Engineering, Jaipur 303012, India,   Nonlinear Dynamics Research Center (NDRC), Ajman University, Ajman AE 346, United Arab Emirates,   International Center for Basic and Applied Sciences, Jaipur 302029, India,   Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
Published: November 2021

SARS-COV-2 (Coronavirus) viral growth kinetics within-host become a key fact to understand the COVID-19 disease progression and disease severity since the year 2020. Quantitative analysis of the viral dynamics has not yet been able to provide sufficient information on the disease severity in the host. The SARS-CoV-2 dynamics are therefore important to study in the context of immune surveillance by developing a mathematical model. This paper aims to develop such a mathematical model to analyse the interaction between the immune system and SARS-CoV-2 within the host. The model is developed to explore the viral load dynamics within the host by considering the role of natural killer cells and T-cell. Through analytical simplifications, the model is found well-posed and asymptotically stable at disease-free equilibrium. The numerical results demonstrate that the influx of external natural killer (NK) cells alone or integrating with anti-viral therapy plays a vital role in suppressing the SARS-CoV-2 growth within-host. Also, within the host, the virus can not grow if the virus replication rate is below a threshold limit. The developed model will contribute to understanding the disease dynamics and help to establish various potential treatment strategies against COVID-19.
The category of affine algebraic regular monoids
Authors: Cao Haijun ,   School of Science, Shandong Jiaotong University, Jinan, Shandong 250375, China, Xiao Fang ,   Fuchun High School, Hangzhou, Zhejiang 311500, China
Published: November 2021

The main aim of this study is to characterize affine weak $ k $-algebra $ H $ whose affine $ k $-variety $ S = M_{k}(H, k) $ admits a regular monoid structure. As preparation, we determine some results of weak Hopf algebras morphisms, and prove that the anti-function from the category $ \mathcal{C} $ of weak Hopf algebras whose weak antipodes are anti-algebra morphisms is adjoint. Then, we prove the main result of this study: the anti-equivalence between the category of affine algebraic $ k $-regular monoids and the category of finitely generated commutative reduced weak $ k $-Hopf algebras.
Pimping: Valuable Teaching Tool or Mistreatment? Perceptions of Medical Students and Faculty Differ.
Authors: Rodoni Bridger , Duncan Anthony , Pescatore Nicole , Kasten Steve
Published: November 2021

ImportanceThe AAMC Graduate Questionnaire has drawn attention to medical student mistreatment. Pimping, a form of Socratic teaching often used in medical education where students are singled out by faculty for questioning, may be considered by some students and faculty as mistreatment. To date, minimal research has been performed on the viewpoints of students and faculty regarding pimping and its relation to mistreatment. ObjectiveThis study aims to formally define pimping and determine if there is a difference in the perception of students and faculty on its role in medical education.Design: Medical students and faculty of Michigan medical schools were surveyed via electronic questionnaire. Chi-squared and Fisher’s exact tests were performed.SettingMedical schools within the state of Michigan ParticipantsStudents who had completed their core clerkships and faculty with experience educating medical students in a clinical setting ResultsThe student response rate was 42%; the faculty response rate could not be determined. The majority of students agreed with our operational definition of pimping and 100% had experienced pimping. 54% of students reported a positive experience with pimping, 26% neutral, and 20% reported a negative experience. The majority of students reported it was challenging and educational and should be used regularly. Several differences were found between students and faculty as to why faculty use pimping. Students’ perception of their role on the clinical care team influenced their perception of pimping as mistreatment, and students reported pimping made them feel more a part of the team.Conclusion and relevanceThis study helps to define pimping and sheds more light on the perceptions of pimping from students and faculty and their differences. Most medical students report a benefit from pimping, even though it may be stressful, and suggest it should be used regularly, which is in contrast to faculty opinion. Pimping may make students feel more a part of the clinical care team, but their role on the team may not influence whether they perceive it as mistreatment.  Our data suggest medical schools should educate students and faculty on pimping and not move toward discouraging or banning it.
An evidence of asp viper (Vipera aspis) consumption by a western European hedgehog (Erinaceus europaeus) on Elba Island (Italy)
Authors: Di Nicola Matteo Riccardo , Costa Walter , Mori Emiliano
Published: November 2021

We report a record of consumption of an asp viper by a western European hedgehog. The observation took place in Elba Island, providing the first evidence for Italy and, to our knowledge, only the second ever in support to previous anecdotal accounts.
The Critical Need for Advanced Training in Electronic Records Use: Implications for Clinical Practice, Education, and the Advancement of Athletic Training
Authors: Lam Kenneth C. , Anderson Barton E. , Welch Bacon Cailee E.
Published: November 2021

Context

The effective use of electronic records (ie, electronic health records or electronic medical records) is essential to professional initiatives and the overall advancement of the athletic training profession. However, evidence suggests that comprehensive patient care documentation and widespread use of electronic records are still limited in athletic training. The lack of formal training and education for clinicians and students is often cited as a primary barrier to electronic record use. Other health care disciplines have used academic electronic health record (AEHR) systems to address these barriers with promising results.

Objectives

To identify common challenges associated with the effective use of electronic records in clinical practice, discuss how an AEHR system can address these challenges and encourage more effective use of electronic records, and describe strategies for deploying AEHRs in the athletic training profession.

Description

The AEHR is an electronic records system specifically designed for educational use to support simulation learning among all types of learners (eg, practicing clinicians, students). Mimicking the form and function of an electronic health record, the AEHR offers various educational tasks, including patient care documentation projects, critical reviews of standardized patient cases, and assessments of patient care data for quality improvement efforts.

Clinical and Research Advantages

Recent evidence suggests that the use of an AEHR can improve knowledge and enhance skills. Specifically, AEHR use has been associated with enhanced attitudes toward electronic health record technology, increased informatics competencies, and improved documentation skills. Also, the use of an AEHR has been associated with improved critical thinking and decision-making skills. This tool appears to be valuable for health professions education, and athletic training stands to benefit from its use to better train and upskill clinicians and students alike for clinical practice. Although the implementation of an AEHR will require much time and large-scale coordinated efforts, it will be a worthy investment to address current challenges and advance the athletic training profession.
Investigation of multiple infections with zoonotic pathogens of rodents in northern Vietnam
Authors: Anh Le Thi Lan , Balakirev Alexander E. , Chau Nguyen Van
Published: November 2021

Background & objectives: Rodents are important reservoir hosts for several zoonotic pathogens such as Rickettsia, Leptospira and Bartonella. Studies on the prevalence of zoonotic pathogens in Vietnam are data deficient, and there is a scarcity of data on multiple co-infections of zoonotic pathogens to date. This study examined the prevalence of Rickettsia spp., Leptospira spp., and Bartonella spp. and the co-infection of these pathogens in rodents captured in three provinces of northern Vietnam - Ha Giang, Lao Cai and Cao Bang.

Methods: In total, 133 rodents of 25 species were screened for pathogen prevalence by real-time PCR.

Results: Very high infection rates were found for each pathogen, with 42 of 133 rodents (31.6%) positive for Bartonella and 33 of 133 (24.8%) positive for Rickettsia (5.3% were positive for Rickettsia typhi, and 19.5% were infected with Rickettsia spotted fever group). Additionally, 24 rodents (18%) were positive for Leptospira. Double infection among these three pathogens was found in 26 of 133 rodents (18.8%), with the highest dual infection rates for Rickettsia and Bartonella co-infection (40%) and Leptospira and Bartonella co-infection (up to 40%), followed by Rickettsia and Leptospira co-infection (20% of animals investigated). One case of triple infection was documented for a house rat (Rattus cf. rattus species group) trapped in Ha Giang province.

Interpretation & conclusion: Our survey indicates that rodents in northern Vietnam may host multiple zoonotic pathogens simultaneously; thus, rodents contribute significantly to the increased risk of transmission of multiple zoonotic infections from animals to humans.
Procrustes Analysis of Indonesian Mortality Table Iv and Indonesia's Death Rate During Covid-19 Pandemic
Authors: Novika Fanny , Meliyani Revi
Published: November 2021

The level of accuracy to calculate the premium is one of the main points for an actuary to determine the criteria of product which is offered by an insurance company to customers. The main reference in this accuracy is the mortality table. The last mortality table made by AAJI (Asosiasi Asuransi Jiwa Indonesia) was Mortality Table Indonesia (MTI) IV which was published in 2019. However, unexpectedly, the Covid-19 pandemic occurred in early 2020 which caused the death rate to be higher than normal situation. This study aims to compare MTI IV which was made with assumptions before the Covid-19 pandemic according to the death rate in Indonesia during the Covid-19 pandemic. This study uses secondary data, by finding the probability of death in Indonesia by calculating the death rate in Indonesia based on population data according to age group classifications obtained from BPS (Badan Pusat Statistik) Indonesia. Furthermore, both data were compared using Procrustes analysis to calculated the level of conformity. The results showed that 75.97% of the data matched MTI IV with the death rate during the pandemic. If the insurance company wants more accurate results, they can be adjusted to the Indonesian Mortality Table using data during the pandemic. If it is quite satisfied with the accuracy of 75.97%, the company can continue to use MTI IV.
De novo chromosome-length assembly of the mule deer (Odocoileus hemionus) genome
Authors: Lamb Sydney , Taylor Adam M. , Hughes Tabitha A. , McMillan Brock R. , Larsen Randy T. , Khan Ruqayya , Weisz David , Dudchenko Olga , Aiden Erez Lieberman , Edelman Nathaniel B. , Frandsen Paul B.
Published: November 2021

The mule deer (Odocoileus hemionus) is an ungulate species that is distributed in a range from western Canada to central Mexico. Mule deer are an essential source of food for many predators, are relatively abundant, and commonly make broad migration movements. A clearer understanding of the mule deer genome can improve our knowledge of its population genetics, movements, and demographic history, aiding in conservation efforts. Their large population size, continuous distribution, and diversity of habitat make mule deer excellent candidates for population genomics studies; however, few genomic resources are currently available for this species. Here, we sequence and assemble the mule deer genome into a highly contiguous chromosome-length assembly for use in future research using long-read sequencing and Hi-C technologies. We also provide a genome annotation and compare demographic histories of the mule deer and white-tailed deer using the pairwise sequentially Markovian coalescent model. We expect this assembly to be a valuable resource in the continued study and conservation of mule deer.