bluuebunny/crossref_metadata_2025_split huggingface dataset:
Small eye movements cannot be reliably measured by video-based P-CR eye-trackers
Authors: Holmqvist Kenneth , Blignaut Pieter 
Published: March 2020

AbstractFor evaluating whether an eye-tracker is suitable for measuring microsaccades, Poletti & Rucci (2016) propose that a measure called ‘resolution’ could be better than the more established root-mean-square of the sample-to-sample distances (RMS-S2S). Many open questions exist around the resolution measure, however. Resolution needs to be calculated using data from an artificial eye that can be turned in very small steps. Furthermore, resolution has an unclear and uninvestigated relationship to the RMS-S2S and STD (standard deviation) measures of precision (Holmqvist & Andersson, 2017, p. 159-190), and there is another metric by the same name (Clarke, Ditterich, Drüen, Schönfeld, and Steineke 2002), which instead quantifies the errors of amplitude measurements. In this paper, we present a mechanism, the Stepperbox, for rotating artificial eyes in arbitrary angles from 1′ (arcmin) and upward. We then use the Stepperbox to find the minimum reliably detectable rotations in 11 video-based eye-trackers (VOGs) and the Dual Purkinje Imaging (DPI) tracker. We find that resolution correlates significantly with RMS-S2S and, to a lesser extent, with STD. In addition, we find that although most eye-trackers can detect some small rotations of an artificial eye, the rotations of amplitudes up to 2∘ are frequently erroneously measured by video-based eye-trackers. We show evidence that the corneal reflection (CR) feature of these eye-trackers is a major cause of erroneous measurements of small rotations of artificial eyes. Our data strengthen the existing body of evidence that video-based eye-trackers produce errors that may require that we reconsider some results from research on reading, microsaccades, and vergence, where the amplitude of small eye movements have been measured with past or current video-based eye-trackers. In contrast, the DPI reports correct rotation amplitudes down to 1′.
Acquisition of phonology in child Icelandic Sign Language: Unique findings
Authors: Koulidobrova Elena , Ivanova Nedelina 
Published: March 2020

Research shows that acquisition of sign language phonology is a developmental process and involves multiple articulatory cues. Among these cues, handshape has been shown to be crucial and orientation has been argued to be potentially disregardable as being internal to sign production rather than encoding a minimal contrast. We administered a non-word repetition task and a picture naming task to 17 (age 3-15) deaf and hard-of-hearing signers of Icelandic Sign Language (ÍTM)—an endangered indigenous language of the Deaf community in Iceland—targeting the same articulatory features. The tasks were modeled after similar assessment tools for other languages. All of the participants use ÍTM for daily activities at school and at home; the vast majority were early learners (before 36ms). Results show an upward trajectory in the non-word repetition task scores but without a ceiling effect. Contrary to predictions, no effect of handshape was observed. Instead, on both pseudo- and real-word tasks, the majority of errors were in orientation/mirroring. The results suggest that orientation plays a non-trivial role in acquisition of sign language phonology
The origin and architecture of existential indeterminates in Okinawan
Authors: Hiraiwa Ken 
Published: March 2020

In a number of languages, an indeterminate is combined with various particles to yield different indefinite pronouns. This has been called an indeterminate system (Kuroda 1965, Cheng 1991, Haspelmath 1997, Jayaseelan 2001). As Haspelmath (1997) and Jayaseelan (2001) observe, existential indeterminates are often built with disjunction markers. On the other hand, a disjunction particle and a question particle are often morphologically identical cross-linguistically (see Hagstrom 1998, Jayaseelan 2001). Thus, a question that I ask here is whether the alleged homophony between a disjunction marker and a marker that forms an existential quantifier is principled (Jayaseelan 2001, Szabolcsi et al. 2014) or coincidental (Haspelmath 1997, Cable 2010). In this paper, I argue that the observation about homophony is misguided and hence support Haspelmath’s hypothesis, based on the data obtained from my fieldwork on Okinawan, an endangered Ryukyuan language. I propose an analysis where existential indeterminates in Okinawan have a clausal structure of an embedded question and are derived by deletion.
Mandarin has subjectivity-based adjective ordering preferences in the presence of de
Authors: Shi Yuxin , Scontras Gregory 
Published: March 2020

We investigate adjective ordering preferences in Mandarin, a language that has been claimed to have English-like preferences, but only in the absence of the linking particle de (Sproat & Shih 1991). Extending the experimental methodology of Scontras et al. (2017), we find evidence of robust adjective ordering preferences in Mandarin when de is present. Moreover, the Mandarin preferences are predicted by adjective subjectivity, as in English and other unrelated languages.
How we got here: Short-scale change in identity labels for trans, cis, and non-binary people in the 2000s
Authors: Zimman Lal , Hayworth Will 
Published: March 2020

Though understudied in research on language variation and change, the lexicon is a crucial domain for sociopolitical transformations of language. This paper presents a corpus-based sociolinguistic analysis of changes in terms for transgender, cisgender, and non-binary individuals in four online communities on the social media blogging site, LiveJournal.com – one for trans women, one for trans men, one for non-binary people, and another for transgender people in general – that were popular in the 2000s. Using innovative corpus methods that utilize general purpose cloud computing tools, we focus on changes in the popularity of labels for trans, cis, and non-binary people, the factors that impact the variable use of these terms, and what kinds of differences can be observed across the four LiveJournal communities of practice studied. It thereby contributes both to the study of language and identity in trans and queer communities and to the development of methods for studying large datasets of technologically-mediated communication.
Pengelolaan Hubungan Masyarakat dan Korelasinya dengan Mutu Pelayanan Pendidikan Madrasah Aliyah Swasta (MAS) Di Kota Binjai 2018
Authors: Wahyudi M Dian 
Published: March 2020

ABSTRAK Penelitian ini bertujuan untuk mengetahui: (1) pengelolaan hubungan Masyarakat dan korelasinya dengan mutu pelayanan Pendidikan Madrasah Aliyah Swasta di Kota Binjai, (2) terdapat hubungan yang positif antara hubungan masyarakat dengan mutu pelayanan Pendidikan Madrasah Aliyah Swasta di Kota Binjai, (3) secara bersama-sama terdapat hubungan yang positif dan signifikan antara pengelolaan hubungan masyarakat dengan Mutu Pelayanan Pendidikan Madrasah Aliyah Swasta di Kota Binjai. Penelitian ini merupakan penelitian kuantitatif jenis korelasional. Populasi Penelitian ini adalah seluruh Guru-guru Madrasah Aliyah Swasta di kota Binjai yang berjumlah 53 Guru, mean 32,04, median 32,6, modus 33,9, SD 4,27, Secara umum dapat disimpulkan bahwa 32 guru atau 60,37 % skor variabel X Pengelolaan Hubungan Masyarakat di atas nilai rata-rata dan 21 guru atau 39,63% berada dibawah nilai rata-rata. disamping itu diketahui bahwa frekuensi tertinggi pada kelas interval 32-34 dan terendah pada imterval 20-22 dan 23-25, sedangkan variabel Y Mutu Pelayanan Masyarakat Secara umum dapat disimpulkan bahwa 33 guru atau 62,26 % skor variabel Mutu Pelayanan Pendidikan Madrasah Aliyah Swasta diatas nilai rata-rata dan 20 guru atau 37,74% berada dibawah nilai rata-rata.disamping itu diketahui bahwa frekuensi tertinggi pada kelas interval 32-34 dan terendah pada interval 20-22, didapatkan (tergolong tinggi), sedangkan rtabel = 0,274 pada taraf signifikan 5%, instrumen yang digunakan dalam Penelitian ini adalah Angket, adapun Prosedur Penelitian ini menggunakan tiga tahap yaitu, tahap pertama perencanaan, kedua pelaksanaan penelitian dan ketiga tahap Evaluasi.
KONTRIBUSI DUKUNGAN SOSIAL TERHADAP MOTIVASI BERPRESTASI SISWA DI SMP NEGERI BATANG KAPAS
Authors: M.Pd Mori Dianto 
Published: March 2020

This research was done because of phenomenon of the students’ low motivation to get the achievement at school. Social support have a correlation for creating the students’ potential giftedness to get an achievement in learning. The role of the teachers, especially the teachers of guidance and counseling are needed in improving the students’ achievement at school in order to improve their learning achievement. This research has purpose to find the social support and achievement motivation of SMPN Kecamatan Batang Kapas Pesisir Selatan. This research used correlational approach which has purpose to know how is the contribution among the research variables. The population of the research is the students of SMPN Kecamatan Batang Kapas Pesisir Selatan. The amount of the population was 601 students. The sample of this research was 240 students. It had been taken by using simple random sampling technique. The instruments used in the form of scale. The data was analyzed by using descriptive technique and the hypothesis testing was done by using korelasional. The result shows that: (1) social support is in the enough category, (2) students’ achievement motivation is in the enough category, (4) the contribution of social support through the students’ achievement motivation is about 20.2%. The above findings imply that social support have contributed to students achievement motivation. Needs to be done similar studies were suggested to conduct at different contexts to compare the findings.
Studi Eksperimental Pengaruh Bilangan Reynold dan Fraksi Massa Terhadap Koefisien Perpindahan Panas Konveksi pada Pipa Coil
Authors: Iskandarsyah Firman , Tasri Adek , Pratama Rahmadian 
Published: March 2020

Aliran dua fase merupakan bagian dari aliran multi-fase dan masih dapat dibedakan menjadi beberapa bagian yang memepengaruhi koefisien perpindahan panas. Pada dunia industri, koefisien perpindahanpanas memiliki arti penting. Dalam aplikasinya seperti pada proses pemanasan dan pendinginan, koefisien perpindahan panas sangat berpengaruh pada proses ini karena sangat menentukan hasil prosesyang di inginkan.. Perubahan fasa ini menciptakan kondisi aliran dua fasa dimana sebelumnya aliran tersebut hanya satu fasa. Kondisi aliran dua fasa ini tentu memiliki koefisien perpindahan panas yangberbeda daripada aliran satu fasa. Sehingga kita perlu mengetahui besarnya pengaruh koefisien perpindahan panas pada aliran dua fasa. Penelitian ini bertujuan untuk menentukan pengaruh fraksi massa terhadap koefisien perpindahan panas pada dinding coil.
Studi Eksperimen Karakteristik Mekanik Material Screw Press Kapasitas 10-14 Ton/Jam di Lingkungan Pabrik Kelapa Sawit
Authors: Rinaldi Rinaldi , Pranoto Siswo , Afriza Rafasiro 
Published: March 2020

Sawit merupakan salah satu tanaman penghasil minyak sawit (Cruide Palm Oil) dan inti sawit (Palm Kernel) dan menjadi primadona tanaman perkebunan yang menjadi sumber devisa non migas bagi Indonesia. Salah satu proses terpenting untuk mendapatkan minyak kelapa sawit ada pada mesin screw press. Mesin ini berfungsi memeras buah sawit untuk mendapat minyak sawit. Mesin screw press ini sering terjadi kerusakan yaitu ausnya pisau press pada saat memeras buah sawit, hal ini disebabkan oleh faktor lama pemakaian, perawatan, dan material screw press. Penelitian ini dilakukan untuk mengetahui karakteristik material screw press dengan melakukan beberapa pengujian, menganalisa gaya dan tegangan pada screw press. Pengujian yang dilakukan adalah: uji tarik, uji kekerasan, struktur mikro, dan komposisi kimia. dimana dari hasil pengujian yang dilakukan didapatkan hasil yaitu: tegangan tarik sebesar 78 kg/mm2 , keuletan screw 4,64%, sementara berdasarkan standar dari material screw press tegangan tarik screw press adalah 100 kg/mm2. Pengujian kekerasan dari tiga titik pengujian pada salah satu titik kekerasannya berbeda. Sedangkan gaya tekan yang terjadi pada screw adalah sebesar 264 kN/m2, dimana besarnya torsi 85,50 kN.m2, dan tegangan aksial screw sebesar 336,13 kN/m2. Dari hasil uji yang telah dilakukan dapat disimpulkan besarnya selisih tegangan tarik spesimen uji dengan standar pabrik sangat jauh, serta kekerasan permukaan screw yang tidak sama sangat mempengarui tingkat aus pada material screw press.
Perencanaan Sudu Turbin Angin Untwisted Kapasitas 300 Watt Menggunakan NACA 4417
Authors: Ridwan Abrar 
Published: March 2020

Pemanfaatan energi berkelanjutan merupakan usaha yang tidak pernah berhenti dilakukan oleh ilmuwan dan praktisi, salah satunya pembangkit listrik turbin angin. Potensi angin diatas gedung rektorat lantai 7 Universitas Muhammadiyah Riau berkisar 4 – 7 m/s dan nilai tersebut sangat berpotensi untuk membantu suplai daya listrik ke gedung tersebut. Telah dilakukan perencanan dimensi sudu turbin dan bentuk aerofoil dengan referensi NACA 4417 berkapasitas daya 300 watt, radius sudu turbin 2,4 meter dengan tipe untwisted didapat nilai chord dipangkal (root) 0,730 m dan diujung (tip) 0,124 m sedangkan ketebalan maksimum chord dipangkal 0,186 m dan diujung 0,015 m. Gaya maksimum aksial turbin adalah 119 N. Bentuk disain akan menjadi parameter pembuatan sudu turbin berbahan baku unggulan lokal berupa limbah pelepah sawit.
ANALISIS DEBIT BANJIR SUNGAI MELUPO DENGAN METODE HSS GAMA 1
Authors: Kasim Talib W. 
Published: March 2020

ABSTRAK
Sungai Meluopo merupakan daerah pasir dan batuan kecil, dibagian hulu sungai merupakan daerah hutan yang saat ini sudah menjadi lahan perkebunan dan pertanian. Mengurangi resiko terjadinya kerusakan akibat banjir di sekitar Sungai Meluopo dibutuhkan upaya pengendalian banjir. Tujuan dalam penelitian ini Menganalisis debit banjir Sungai Meluopo dengan metode HSS Gama I dan pengendalian banjir yang terjadi di Sungai Meluopo. Analisis data terdiri atas analisa curah hujan untuk mendapatkan curah hujan rencana dan analisa debit banjir untuk mendapatkan debit banjir rencana dengan berbagai periode kala ulang. Hasil penelitian menunjukkan bahwa Periode ulang 2 tahun sebesar Q= 93.43 m3/det, periode ulang 5 tahun sebesar Q=105.74 m3/det, periode ulang 10 tahun sebesar Q=112.18m3/det, periode ulang 25 tahun sebesar Q= 120.39 m3/det, periode ulang 50 tahun sebesar Q= 123.47 m3/det, periode ulang 100 tahun sebesar Q= 127.57m3/det.
Kata Kunci: Sungai Meluopo, banjir, curah hujan & debit
The AMUSING++ Nearby Galaxy Compilation. I. Full Sample Characterization and Galactic-scale Outflow Selection
Authors: López-Cobá Carlos , Sánchez Sebastián F. , Anderson Joseph P. , Cruz-González Irene , Galbany Lluís , Ruiz-Lara Tomás , Barrera-Ballesteros Jorge K. , Prieto José L. , Kuncarayakti Hanindyo 
Published: March 2020

Abstract
We present here AMUSING++: the largest compilation of nearby galaxies observed with the MUSE integral-field spectrograph so far. This collection consists of 635 galaxies from different MUSE projects covering the redshift interval 0.0002 < z < 0.1. The sample and its main properties are characterized and described here. It includes galaxies of almost all morphological types, with a good coverage in its color–magnitude diagram, within the stellar mass range between 108 and 1012
M
⊙, and with properties resembling those of a diameter-selected sample. The AMUSING++ sample is, therefore, suitable for studying, with unprecendented detail, the properties of nearby galaxies at global and local scales, providing us with more than 50 million individual spectra. We use this compilation to investigate the presence of galactic outflows. We exploit the use of combined emission-line images to explore the shape of the different ionized components and the distribution along classical diagnostic diagrams to disentangle the different ionizing sources across the optical extension of each galaxy. We use the cross-correlation function to estimate the level of symmetry of the emission lines as an indication of the presence of shocks and/or active galactic nuclei. We uncovered a total of 54 outflows, comprising ∼8% of the sample. A large number of the discovered outflows correspond to those driven by active galactic nuclei (∼60%), suggesting some bias in the selection of our sample. No clear evidence was found that outflow host galaxies are highly star-forming, and outflows appear to be found within all galaxies around the star-formation sequence.
A Comprehensive Study of Hα Emitters at z ∼ 0.62 in the DAWN Survey: The Need for Deep and Wide Regions
Authors: Harish Santosh , Coughlin Alicia , Rhoads James E. , Malhotra Sangeeta , Finkelstein Steven L. , Stevans Matthew , Tilvi Vithal S. , Khostovan Ali Ahmad , Veilleux Sylvain , Wang Junxian , Hibon Pascale , Zabl Johnnes , Joshi Bhavin , Pharo John , Wold Isak , Perez Lucia A. , Zheng Zhen-Ya , Probst Ronald , Swaters Rob , Mobasher Bahram , Jiang Tianxing , Yang Huan 
Published: March 2020

Abstract
We present new estimates of the luminosity function (LF) and star formation rate density (SFRD) for an Hα-selected sample at z ∼ 0.62 from the Deep And Wide Narrow-band (DAWN) survey. Our results are based on a new Hα sample in the extended COSMOS region (compared to Coughlin et al.) with the inclusion of flanking fields, resulting in a total area coverage of ∼1.5 deg2. A total of 241 Hα emitters were selected based on robust selection criteria using spectrophotometric redshifts and broadband color–color classification. Given that dust extinction is a dominant uncertainty in the estimation of LF and SFRD, we explore the effect of different dust-correction prescriptions by calculating the LF and SFRD using a constant dust extinction correction, AHα
= 1 mag, a luminosity-dependent correction, and a stellar-mass-dependent correction. The resulting Hα LFs are well fitted using Schechter functions with best-fit parameters: L* = 1042.24 erg s−1, ϕ* = 10−2.85 Mpc−3, α = −1.62 for constant dust correction, L

erg s−1, ϕ* = 10−2.8 Mpc−3, α = −1.39 for luminosity-dependent dust correction, and L* = 1042.36 erg s−1, ϕ* = 10−2.91 Mpc−3, α = −1.48, for stellar-mass-dependent dust correction. The deep and wide nature of the DAWN survey effectively samples Hα emitters over a wide range of luminosities, thereby providing better constraints on both the faint and bright ends of the LF. Also, the SFRD estimates ρ
SFR = 10−1.39
M
⊙ yr−1 Mpc−3 (constant dust correction), ρ
SFR = 10−1.47
M
⊙ yr−1 Mpc−3 (luminosity-dependent dust correction), and ρ
SFR = 10−1.46
M
⊙ yr−1 Mpc−3 (stellar-mass-dependent dust correction) are in good agreement with the evolution of SFRD across redshifts (0 < z < 2) seen from previous Hα surveys.
Paβ, Hα, and Attenuation in NGC 5194 and NGC 6946
Authors: Kessler Sarah , Leroy Adam , Querejeta Miguel , Murphy Eric , Rebolledo David , Sandstrom Karin , Schinnerer Eva , Wong Tony 
Published: March 2020

Abstract
We combine Hubble Space Telescope Paschen β (Paβ) imaging with ground-based, previously published Hα maps to estimate the attenuation affecting Hα, A(Hα), across the nearby, face-on galaxies NGC 5194 and NGC 6946. We estimate A(Hα) in ∼2000 independent 2″ ∼ 75 pc diameter apertures in each galaxy, spanning out to a galactocentric radius of almost 10 kpc. In both galaxies, A(Hα) drops with radius, with a bright, high-attenuation inner region, though in detail the profiles differ between the two galaxies. Regions with the highest attenuation-corrected Hα luminosity show the highest attenuation, but the observed Hα luminosity of a region is not a good predictor of attenuation in our data. Consistent with much previous work, the IR-to-Hα color does a good job of predicting A(Hα). We calculate the best-fit empirical coefficients for use combining Hα with 8, 12, 24, 70, or 100 μm to correct for attenuation. These agree well with previous work, but we also measure significant scatter around each of these linear relations. The local atomic plus molecular gas column density, N(H), also predicts A(Hα) well. We show that a screen with magnitude ∼0.2 times that expected for a Milky Way gas-to-dust value does a reasonable job of explaining A(Hα) as a function of N(H). This could be expected if only ∼40% of gas and dust directly overlap regions of Hα emission.
Exploring the Mass Segregation Effect of X-Ray Sources in Globular Clusters. III. Signs of Binary Disruption in M28
Authors: Cheng Zhongqun , Mu Huijun , Li Zhiyuan , Xu Xiaojie , Wang Wei , Li Xiangdong 
Published: March 2020

Abstract
Using archival Chandra observations with a total effective exposure of 323 ks, we derive an updated catalog of point sources in the bulge globular cluster M28. The catalog contains 502 X-ray sources within an area of ∼475 arcmin2, and more than 90% of these sources are first detected in this cluster. We find significant dips in the radial distribution profiles of X-ray sources in M28, and the projected distance and width of the distribution dip for bright (L
X ≳ 4.5 × 1030 erg s−1) X-ray sources are larger than for faint (L
X ≲ 4.5 × 1030 erg s−1) sources. Fitting with the “generalized King model” gives a slightly larger average mass for the bright sources (1.30 ± 0.15 M
⊙) than for the faint ones (1.09 ± 0.14 M
⊙), which supports a universal delay in mass segregation between heavy objects in globular clusters. We show that the dynamical age of M28 is comparable to that of Terzan 5 and much smaller than that of 47 Tuc, but M28 is evolving faster (i.e., with a shorter two-body relaxation timescale) than 47 Tuc. These features may suggest an acceleration effect of cluster dynamical evolution by tidal shock in M28. Besides, we find an abnormal deficiency of X-ray sources in the central region (R ≲ 1.′5) of M28 compared with its outskirts, which indicates that M28 may have suffered an early phase of primordial binary disruption within its central region, and the mass segregation effect will erase such a phenomenon as clusters evolve to an older dynamical age.
ASASSN-16oh: A Nova Outburst with No Mass Ejection—A New Type of Supersoft X-Ray Source in Old Populations
Authors: Kato Mariko , Saio Hideyuki , Hachisu Izumi 
Published: March 2020

Abstract
ASASSN-16oh is a peculiar transient supersoft X-ray source without a mass-ejection signature in the field of the Small Magellanic Cloud. Maccarone et al. concluded that ASASSN-16oh is the first dwarf nova with supersoft X-ray that originated from an equatorial accretion belt on a white dwarf (WD). Hillman et al. proposed a thermonuclear runaway model that both the X-rays and V/I photons are emitted from the hot WD. We propose a nova model induced by a high rate of mass accretion during a dwarf nova outburst, i.e., the X-rays originate from the surface of the hydrogen-burning WD whereas the V/I photons are from the irradiated disk. Our model explains the main observational properties of ASASSN-16oh. We also obtained thermonuclear runaway models with no mass ejection for a wide range of parameters of the WD mass and mass-accretion rates including both natural and forced novae in low-metal environments of Z = 0.001 and Z = 0.0001. They are a new type of periodic supersoft X-ray sources with no mass ejection and also a bright transient in V/I bands if they have a large disk. We suggest that such objects are candidates for Type Ia supernova progenitors because its mass is increasing at a very high efficiency (∼100%).