bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Fouling on the Performance of an Instream Turbine
Authors: Starzmann Ralf , Kaufmann Nicholas , Jeffcoate Penny , Pieroway Ray , Guerra Maricarmen , Hay Alex 
Published: December 2022

As the tidal energy industry starts to mature towards commercial projects a key focus is on reliable power performance. As for any marine application, fouling poses a potential performance reduction risk for instream turbine deployments.
SCHOTTEL HYDRO have developed their current commercial SCHOTTEL Instream Turbines. Four drivetrains with 6.3m rotors were deployed on the surface platform PLAT-I by Sustainable Marine Energy. One of PLAT-Is key features is access to the turbines for inspection and maintenance in situ. The system has undergone sea testing from 2017 to 2021 in Scotland and Nova Scotia (Canada).
This paper presents the hydrodynamic rotor performance reduction due to fouling based on full-scale experimental results. An in-house blade element momentum model is used to quantify the changes of the hydrodynamic forces in terms of lift and drag for the hydrofoils used. Furthermore, the effect of fouling on the downstream wake was quantified in the field. The performance reduction due to fouling is significant and leads to a power drop of up to 43%, whereas the thrust is reduced by 25%. This is also reflected in a reduction of the turbine’s downstream wake as a “fouled” rotor extracts less energy from the flow. Modifications of the polar data, used for semi-empirical performance predictions, are able to predict the effect of fouling on the rotor performance.
In general, the results derived from the testing prove the significance of access to the turbines in order to avoid reduction in the turbines’ performance due to fouling.
Filipino Americans and the Glass Ceiling: A Quantitative Analysis of Cultural Adherence, Assertiveness, and Management
Authors: Hamilton Abby , Kuchinka Daniel G. J. 
Published: December 2022

With a sample of 473 Filipino Americans in 35 states in the United States, this quantitative study was designed to investigate factors which surround Filipino Americans’ glass ceiling challenges in attaining higher-level positions in the workplace. The investigation explored the related variables, including years of management experience, adherence to two dimensions of Filipino cultural values (interpersonal norms and conservatism), and assertiveness. Years of living in the United States, geographic location, and generational levels were also examined. The study revealed a statistically significant negative relationship between assertiveness and the interpersonal norms dimension of the Filipino culture. Findings revealed specific Filipino cultural traits which conflict with assertiveness. Results from the current study can be used for the development of assertiveness training for Filipino Americans who desire to advance in the workplace.
Klasifikasi Jenis Kelamin Berdasarkan Gambar Mata Menggunakan Algoritma Convolutional Neural Network (CNN)
Authors: Firdaus Rahmad , Joni Satria  , Baidarus Baidarus 
Published: December 2022

Mata merupakan organ penglihatan yang terletak di rongga orbital. Bentuknya bulat, sekitar 2,5cm. Ruang antara mata dan orbit diisi oleh jaringan gemuk, dinding tulang dan lemak orbit yang dapat melindungi mata dari terluka. Mata adalah salah satu panca indra yang dapat digunakan untuk membedakan jenis kelamin dari manusia. Untuk membantu mengklasifikasikan jenis kelamin manusia menggunakan data citra mata bisa dengan menggunakan pendekatan deep learning dengan menggunakan algoritma Convolutional Neural Network (CNN). Hasil yang diperoleh adalah berupa nilai precision, recall, F1-score dan Accuracy dengan nilai precision untuk femaleeyes 97% dan maleeyes 90%, Recall femaleeyes dengan nilai 91% dan maleeyes 96%, F1-score dengan nilai femaleeyes 94% serta maleeyes 93% dan nilai accuracy yang di dapatkan pada jumlah data yang sudah di training sebesar 94%.
СУЩНОСТЬ И СВОЕОБРАЗИЕ ЭТНОЯЗЫКОВОЙ ИДЕНТИЧНОСТИ САХА В УСЛОВИЯХ ДВУЯЗЫЧИЯ: ЭТНОСОЦИОПСИХОЛИНГВИСТИЧЕСКИЙ ПОДХОД
Authors: Иванова Нина Иннокентьевна 
Published: December 2022

В статье представлены результаты этносоциопсихолингвистического анализа проявлений этноязыковой идентичности саха в условиях двуязычия в широком экстралингвистическом контексте на материале полевых данных, представляющих количественную и качественную характеристику объекта исследования. Современные, динамично меняющиеся реалии подвергают носителей недоминирующих языков (в наибольшей степени детей и молодежь, сельских жителей) воздействию множества экстралингвистических факторов, формирующих не билингвизм, а монолингвизм. На сегодня этноязыковая идентичность саха, число носителей которого составляет менее 500 тыс., превосходит воздействие унифицирующих и урбанизационных процессов благодаря уникальному отношению к языку, имеющему высокий социальный статус и возведенному в ранг основного культурного маркера. Общенародный характер проявления, естественный характер воспроизводства, особое метаязыковое чутье составляют своеобразие этноязыковой идентичности саха. Массовые установки саха, представленные намерением сохранения родного языка, языкового многообразия, повышения его статуса в сфере образования и т.д., выражают настоятельное требование о необходимости изменения реализующихся в данное время тактики и стратегии государственной языковой политики с учетом внешних экстралингвистических факторов, негативно влияющих на воспроизводство языка, этноязыковую идентичность. При этом автор убежден в приоритете восстановления функций якутского языка методами, приемлемыми для восстановления естественных языков (качественного школьного преподавания, создания семейной речевой среды, языковых лагерей и т.д.), но не замещая их внедрением новых информационных технологий в естественную языковую среду, расширением якутского языка в киберпространстве, которые целесообразно использовать в качестве дополнительных средств в обеспечении витальности языка.
ШЕСТНАДЦАТОЕ ЗАСЕДАНИЕ ДИСКУССИОННО-АНАЛИТИЧЕСКОГО КЛУБА ПО ЯЗЫКОВОЙ ПОЛИТИКЕ
Authors: Будянская Елена Михайловна , Евстигнеева Анастасия Павловна 
Published: December 2022

24 марта 2022 г. в Институте языкознания РАН состоялось шестнадцатое заседание Дискуссионно-аналитического клуба по языковой политике, которое прошло в онлайн-формате на платформе Zoom. На заседании с докладом на тему «Кочевые школы в системе образования для народов Севера: Языковые аспекты» выступила Александра Николаевна Терёхина – к.и.н., социальный антрополог, этнолог, научный сотрудник Арктического научно-исследовательского стационара Института экологии растений и животных УрО РАН (г. Лабытнанги, ЯНАО).
ЯЗЫКОВАЯ СИТУАЦИЯ НА НИЖНЕЙ ИНДИГИРКЕ: РУССКИЕ СТАРОЖИЛЫ АРКТИКИ
Authors: Бердникова Татьяна Александровна 
Published: December 2022

Статья посвящена описанию языковой ситуации на Нижней Индигирке начала ХХ в. и в настоящее время. Первая часть статьи построена на этнографических материалах В.М. Зензинова и А.Л. Биркенгофа, которые описывали не только «сколок русской культуры» – русских старожилов Арктики, но и их взаимоотношения с инокультурным и иноязычным окружением. Вторая часть статьи отражает современную языковую ситуацию в районе выявленную по материалам собственных полевых исследований 2014 и 2018 гг. Нижнеиндигирский (русскоустьинский) старожильческий диалект в полиэтническом окружении продолжает существовать и развиваться по своим внутренним законам, чему способствует высокая степень языкового самосознания носителей, сохранность одного из видов традиционной деятельности, тесные родственные связи внутри общины, словотворчество, меры по популяризации народной культуры, интерес со стороны научного сообщества. Опрос о языковых контактах в районе показал, что основным языком общения современных жителей Нижней Индигирки продолжает оставаться русский язык, вторым языком общения (по количеству говорящих на нем) является якутский язык, далее следует эвенский язык. В целом языковая ситуация характеризуется как стабильная, гармоничная, что является традиционным для арктического региона.
Participation in Sports Betting and Youth Welfare Nexus
Authors: Gathuru James Muigai 
Published: December 2022

This paper seeks to establish the nexus between sports betting participation and youth welfare in Kenya. The focus of the study is the youth based in the Kajiado North constituency which has the highest youth population within the Nairobi metropolitan statistical area. There are 9 universities around the region. The study sample size is 341. Endogenous switching regression estimation is adopted to determine the association between sports betting participation and youth welfare. From the regression analysis, this study obtains a significant and negative coefficient of -1.4971 relating to sports betting and youth welfare. This suggests that sports betting negatively affects youths' overall welfare in a 1.49 percent greater manner than those who abstain from it. It is important to address the factors that lead the youth to participate in sports betting, particularly control of commercials by making it mandatory that they issue disclaimers that doing so may worsen one's welfare. It is also essential to properly educate young people on financial management in order that they may channel their money toward worthwhile endeavors rather than sports betting.
The Cosmic Telescope That Lenses the Sunburst Arc, PSZ1 G311.65–18.48: Strong Gravitational Lensing Model and Source Plane Analysis*
Authors: Sharon Keren , Mahler Guillaume , Rivera-Thorsen T. Emil , Dahle Håkon , Gladders Michael D. , Bayliss Matthew B. , Florian Michael K. , Kim Keunho J. , Khullar Gourav , Mainali Ramesh , Napier Kate A. , Navarre Alexander , Rigby Jane R. , Remolina González Juan David , Sharma Soniya 
Published: December 2022

Abstract
We present a strong-lensing analysis of the cluster PSZ1 G311.65−18.48, based on Hubble Space Telescope imaging, archival VLT/MUSE spectroscopy, and Chandra X-ray data. This cool-core cluster (z = 0.443) lenses the brightest lensed galaxy known, dubbed the “Sunburst Arc” (z = 2.3703), a Lyman continuum (LyC) emitting galaxy multiply imaged 12 times. We identify in this field 14 additional strongly lensed galaxies to constrain a strong-lens model and report secure spectroscopic redshifts of four of them. We measure a projected cluster core mass of M(<250 kpc) =

2.93

−
0.02

+
0.01

×

10

14

M
⊙. The two least magnified but complete images of the Sunburst Arc’s source galaxy are magnified by ∼13×, while the LyC clump is magnified by ∼4–80×. We present time delay predictions and conclusive evidence that a discrepant clump in the Sunburst Arc, previously claimed to be a transient, is not variable, thus strengthening the hypothesis that it results from an exceptionally high magnification. A source plane reconstruction and analysis of the Sunburst Arc finds its physical size to be 1 × 2 kpc and that it is resolved in three distinct directions in the source plane, 0°, 40°, and 75° (east of north). We place an upper limit of r ≲ 50 pc on the source plane size of unresolved clumps and r ≲ 32 pc for the LyC clump. Finally, we report that the Sunburst Arc is likely in a system of two or more galaxies separated by ≲6 kpc in projection. Their interaction may drive star formation and could play a role in the mechanism responsible for the leaking LyC radiation.
Multiwavelength Observations of MWC 297: Constraints on Disk Inclination and Mass Outflow
Authors: Vacca William D. , Sandell Göran 
Published: December 2022

Abstract
MWC 297 is a young, early-type star driving an ionized outflow and surrounded by warm, entrained dust. Previous analyses of near- and mid-IR interferometric images suggest that the emission at these wavelengths arises from a compact accretion disk with a moderate (i < 40°) inclination. We have obtained 5–40 μm images of MWC 297 with FORCAST on SOFIA, as well as near-infrared spectra acquired with SpeX on the IRTF and radio data obtained with the VLA and BIMA, and supplemented these with archival data from Herschel/PACS and SPIRE. The FORCAST images, combined with the VLA data, indicate that the outflow lobes are aligned nearly north–south and are well separated. Simple geometrical modeling of the FORCAST images suggests that the disk driving the outflow has an inclination of 55° ± 5°, in disagreement with the results of the interferometric analyses. Analysis of the SpeX data, with a wind model, suggests the mass-loss rate is on the order of

6.0

±

1.7

3.7

×

10

−
7

M

⊙

yr

−
1

and the extinction to the source is

A

V

∼
8.1

±

1.5

2.5

mag. We have combined our data with values from the literature to generate the spectral energy distribution of the source from 0.35 μm to 6 cm and estimate the total luminosity. We find the total luminosity to be about 7900 L
⊙, if we include emission from an extended region around the star, only slightly below that expected for a B1.5V star. The reddening must be produced by dust along the line of sight, but distant from the star.
Near-infrared Spectroscopy of a Massive Young Stellar Object in the Direction toward the Galactic Center: XCN and Aromatic C–D Features
Authors: Onaka Takashi , Sakon Itsuki , Shimonishi Takashi 
Published: December 2022

Abstract
We report near-infrared (2.5–5 μm) long-slit (∼30″) spectroscopy of a young stellar object in the direction toward the Galactic center with the Infrared Camera on board the AKARI satellite. The present target is suggested to be AFGL 2006 based on its very red color and close location. The spectra show strong absorption features of H2O and CO2 ices, and emission of H i Brα recombination line and the 3.3 μm band, the latter of which originates from polycyclic aromatic hydrocarbons (PAHs) or materials containing PAHs. The spectra show a broad, complex absorption feature at 4.65 μm, which is well explained by a combination of absorption features of CO ice, CO gas, and XCN, and H i Pfβ emission. The spectra also indicate excess emission at 4.4 μm. The characteristics of the spectra suggest that the object is a massive young stellar object. The XCN feature shows a good correlation with the Brα emission, suggesting that the photolysis by ultraviolet photons plays an important role in the formation of the XCN carriers, part of which are attributed to OCN−. The 4.4 μm emission shows a good correlation with the 3.3 μm PAH emission, providing supporting evidence that it comes from the aromatic C–D stretching vibration. The formation of OCN− is of importance for the formation process of prebiotic matter in the interstellar medium (ISM), while the detection of aromatic C–D emission provides valuable information on the deuteration process of PAHs in the ISM and implications on the hiding site of the missing deuterium in the ISM.
Exact Shearing Flow Magnetized Hybrid Kinetic Equilibria with Inhomogeneous Temperature
Authors: Malara F. , Settino A. , Perrone D. , Pezzi O. , Guzzi G. , Valentini F. 
Published: December 2022

Abstract
Magnetized plasmas with shearing flows are found in many natural contexts, such as around Earth’s magnetopause. In collisionless plasmas where physical quantities vary on a scale of the order of or larger than ion scales, the hybrid Vlasov−Maxwell description (kinetic ions coupled to a neutralizing electron fluid via electromagnetic fields) represents a suitable approach. When crossing the magnetopause, the ion temperature, density, and direction of magnetic field vary. We derive a form for an exact stationary solution of the hybrid Vlasov−Maxwell equations that represent a magnetized plasma with a quasi-planar shearing flow, variable density and ion temperature, and variable magnetic field direction. A stationary ion distribution function is expressed as a suitable combination of particle constants of motion and evaluated numerically in such a way to obtain configurations with variable density and temperature and two quasi-planar oppositely directed velocity shear layers. Properties of particular configurations are derived from Magnetospheric Multiscale measures during crossings of Earth’s magnetopause. In the first case a quasi-uniformly directed, nearly perpendicular magnetic field is present, while in the second case, going from the magnetosheath to the magnetosphere, the magnetic field makes a wide rotation from one side to the other of the shearing flow plane. In both cases, the ion distribution function departs from a Maxwellian in the shear layers, displaying temperature anisotropy and agyrotropy, with a nonsymmetric behavior in the two shear layers. The configurations considered here can be used as models for Earth’s magnetopause in simulations of the Kelvin–Helmholtz instability.
Extreme Nature of Four Blue-excess Dust-obscured Galaxies Revealed by Optical Spectroscopy
Authors: Noboriguchi Akatoki , Nagao Tohru , Toba Yoshiki , Ichikawa Kohei , Kajisawa Masaru , Kato Nanako , Kawaguchi Toshihiro , Matsuhara Hideo , Matsuoka Yoshiki , Onishi Kyoko , Onoue Masafusa , Tamada Nozomu , Terao Koki , Terashima Yuichi , Ueda Yoshihiro , Yamashita Takuji 
Published: December 2022

Abstract
We report optical spectroscopic observations of four blue-excess dust-obscured galaxies (BluDOGs) identified by the Subaru Hyper Suprime-Cam. BluDOGs are a subclass of dust-obscured galaxies (DOGs; defined with the extremely red color (i − [22])AB ≥ 7.0; Toba et al., showing a significant flux excess in the optical g and r bands over the power-law fits to the fluxes at the longer wavelengths. Noboriguchi et al. have suggested that BluDOGs may correspond to the blowing-out phase involved in a gas-rich major-merger scenario. However, the detailed properties of BluDOGs are not understood because of the lack of spectroscopic information. In this work, we carry out deep optical spectroscopic observations of four BluDOGs using Subaru/FOCAS and VLT/FORS2. The obtained spectra show broad emission lines with extremely large equivalent widths, and a blue wing in the C iv line profile. The redshifts are between 2.2 and 3.3. The averaged rest-frame equivalent widths of the C iv lines are 160 ± 33 Å, ∼7 times higher than the average of a typical type 1 quasar. The FWHMs of their velocity profiles are between 1990 and 4470 km s−1, and their asymmetric parameters are 0.05 and 0.25. Such strong C iv lines significantly affect the broadband magnitudes, which are partly the origin of the blue excess seen in the spectral energy distribution of BluDOGs. Their estimated supermassive black hole masses are 1.1 × 108 < M
BH/M
⊙ <5.5 × 108. The inferred Eddington ratios of the BluDOGs are higher than 1 (1.1 < λ
Edd < 3.8), suggesting that the BluDOGs are in a rapidly evolving phase of supermassive black holes.
Locating Hidden Exoplanets in ALMA Data Using Machine Learning
Authors: Terry J. P. , Hall C. , Abreau S. , Gleyzer S. 
Published: December 2022

Abstract
Exoplanets in protoplanetary disks cause localized deviations from Keplerian velocity in channel maps of molecular line emission. Current methods of characterizing these deviations are time consuming,and there is no unified standard approach. We demonstrate that machine learning can quickly and accurately detect the presence of planets. We train our model on synthetic images generated from simulations and apply it to real observations to identify forming planets in real systems. Machine-learning methods, based on computer vision, are not only capable of correctly identifying the presence of one or more planets, but they can also correctly constrain the location of those planets.
Empirical Temperature- and Extinction-dependent Extinction Coefficients for the GALEX, Pan-STARRS 1, Gaia, SDSS, 2MASS, and WISE Passbands
Authors: Zhang Ruoyi , Yuan Haibo 
Published: December 2022

Abstract
We have obtained accurate dust reddening from the far-ultraviolet to the mid-infrared for up to 5 million stars by the star-pair algorithm based on LAMOST stellar parameters along with Galaxy Evolution Explorer, Pan-STARRS 1, Gaia, Sloan Digital Sky Survey, Two Micron All Sky Survey, and Wide-field Infrared Survey Explorer photometric data. The typical errors are between 0.01 and 0.03 mag for most colors. We derived the empirical reddening coefficients for 21 colors both in the traditional (single-valued) way and as a function of T
eff and E(B − V) by using the largest samples of accurate reddening measurements, together with the extinction values from Schlegel et al. The corresponding extinction coefficients have also been obtained. The results are compared with model predictions and generally in good agreement. Comparisons with measurements in the literature show that the T
eff- and E(B − V)-dependent coefficients explain the discrepancies between different measurements naturally, i.e., using sample stars of different temperatures and reddening. Our coefficients are mostly valid in the extinction range of 0–0.5 mag and the temperature range of 4000–10,000 K. We recommend that the new T
eff- and E(B − V)-dependent reddening and extinction coefficients should be used in the future. A Python package is also provided for the usage of the coefficients (https://github.com/vnohhf/extinction_coeffcient/).
GOALS-JWST: Tracing AGN Feedback on the Star-forming Interstellar Medium in NGC 7469
Authors: Lai 賴 Thomas S.-Y. 劭愉 , Armus Lee , U Vivian , Díaz-Santos Tanio , Larson Kirsten L. , Evans Aaron , Malkan Matthew A. , Appleton Philip , Rich Jeff , Müller-Sánchez Francisco , Inami Hanae , Bohn Thomas , McKinney Jed , Finnerty Luke , Law David R. , Linden Sean T. , Medling Anne M. , Privon George C. , Song Yiqing , Stierwalt Sabrina , van der Werf Paul P. , Barcos-Muñoz Loreto , Smith J. D. T. , Togi Aditya , Aalto Susanne , Böker Torsten , Charmandaris Vassilis , Howell Justin , Iwasawa Kazushi , Kemper Francisca , Mazzarella Joseph M. , Murphy Eric J. , Brown Michael J. I. , Hayward Christopher C. , Marshall Jason , Sanders David , Surace Jason 
Published: December 2022

Abstract
We present James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) integral-field spectroscopy of the nearby merging, luminous infrared galaxy, NGC 7469. This galaxy hosts a Seyfert type-1.5 nucleus, a highly ionized outflow, and a bright, circumnuclear star-forming ring, making it an ideal target to study active galactic nucleus (AGN) feedback in the local universe. We take advantage of the high spatial/spectral resolution of JWST/MIRI to isolate the star-forming regions surrounding the central active nucleus and study the properties of the dust and warm molecular gas on ∼100 pc scales. The starburst ring exhibits prominent polycyclic aromatic hydrocarbon (PAH) emission, with grain sizes and ionization states varying by only ∼30%, and a total star formation rate of 10–30 M
⊙ yr−1 derived from fine structure and recombination emission lines. Using pure rotational lines of H2 we detect 1.2 × 107
M
⊙ of warm molecular gas at a temperature higher than 200 K in the ring. All PAH bands get significantly weaker toward the central source, where larger and possibly more ionized grains dominate the emission, likely the result of the ionizing radiation and/or the fast wind emerging from the AGN. The small grains and warm molecular gas in the bright regions of the ring however display properties consistent with normal star-forming regions. These observations highlight the power of JWST to probe the inner regions of dusty, rapidly evolving galaxies for signatures of feedback and inform models that seek to explain the coevolution of supermassive black holes and their hosts.