bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthetic Spectra of Rotating Stars
Authors: Lipatov Mikhail , Brandt Timothy D. 
Published: September 2020

Abstract
Many early-type stars have oblate surfaces, spatial temperature variations, and spectral line broadening that indicate large rotational velocities. Rotation ought to have a significant effect on the full spectra of such stars. To infer structural and life history parameters from their spectra, one must integrate specific intensity over the two-dimensional surfaces of corresponding stellar models. Toward this end, we offer Paint the Atmospheres of Rotating Stars—an integration scheme based on models that incorporate solid body rotation, Roche mass distribution, and collinearity of gravity and energy flux. The scheme features a closed-form expression for the azimuthal integral, a high-order numerical approximation of the longitudinal integral, and a precise calculation of surface effective temperature at rotation rates up to 99.9% of the Keplerian limit. Extensions of the scheme include synthetic color–magnitude diagrams and planetary transit curves.
Infrared Color Separation between Thin-shelled Oxygen-rich and Carbon-rich AGB Stars
Authors: Lewis Megan O. , Pihlström Ylva M. , Sjouwerman Loránt O. , Quiroga-Nuñez Luis Henry 
Published: September 2020

Abstract
We present 43 GHz VLA spectra for 51 AGB sources with the goal of verifying an infrared (IR) color cut intended to separate carbon-rich (C) and oxygen-rich (O) AGB sources throughout the Galaxy. The color cut is a simple line in the [K

s
] − [A] versus [A] − [E] color–color diagram based on 2MASS and MSX photometry, and was originally derived from SiO detection rates in the Bulge Asymmetries and Dynamical Evolution (BAaDE) sample. The division is fully supported by the spectra presented here, which show that SiO maser detections lie on the O-rich side, and SiO nondetections and a single HC3N detection are found on the C-rich side of the division. We further compare the color cut with classifications of the sources based on Low-Resolution Spectra from the Infrared Astronomical Satellite, and find good agreement, verifying that the division is a reliable and efficient method for differentiating O- and C-rich AGB sources. These observations also demonstrate that single lines detected in the BAaDE survey around 42.9 GHz are almost certainly the 29SiO v = 0 line. SiO maser sources where this rare isotopologue transition is brighter than the dominant 28SiO lines have not been reported before, and our observations show that these sources can reverse their behavior such that the typical ratios of 28SiO and 29SiO are restored within a few years.
Cause and Kinematics of a Jetlike CME
Authors: Joshi Reetika , Wang Yuming , Chandra Ramesh , Zhang Quanhao , Liu Lijuan , Li Xiaolei 
Published: September 2020

Abstract
In this article, we present the multiviewpoint and multiwavelength analysis of an atypical solar jet based on data from Solar Dynamics Observatory, SOlar and Heliospheric Observatory, and Solar TErrestrial RElations Observatory. It is generally believed that coronal mass ejections (CMEs) develop from the large-scale solar eruptions in the lower atmosphere. However, the kinematical and spatial evolution of the jet on 2013 April 28 suggests that the jet was clearly associated with a narrow CME with a width of ≈25° and speed of ≈450 km s−1. To better understand the link between the jet and the CME, we performed a coronal potential field extrapolation from the line-of-sight magnetogram of the active region. The extrapolations suggest that the jet eruption follows the same path of the open magnetic field lines from the source region, which provides a route for the jet material to escape from the solar surface toward the outer corona.
On the Spectral Evolution of Hot White Dwarf Stars. I. A Detailed Model Atmosphere Analysis of Hot White Dwarfs from SDSS DR12
Authors: Bédard A. , Bergeron P. , Brassard P. , Fontaine G. 
Published: September 2020

Abstract
As they evolve, white dwarfs undergo major changes in surface composition, a phenomenon known as spectral evolution. In particular, some stars enter the cooling sequence with helium atmospheres (type DO) but eventually develop hydrogen atmospheres (type DA), most likely through the upward diffusion of residual hydrogen. Our empirical knowledge of this process remains scarce: the fractions of white dwarfs that are born helium rich and that experience the DO-to-DA transformation are poorly constrained. We tackle this issue by performing a detailed model-atmosphere investigation of 1806 hot (

≥ 30,000 K) white dwarfs observed spectroscopically by the Sloan Digital Sky Survey. We first introduce our new generations of model atmospheres and theoretical cooling tracks, both appropriate for hot white dwarfs. We then present our spectroscopic analysis, from which we determine the atmospheric and stellar parameters of our sample objects. We find that ∼24% of white dwarfs begin their degenerate life as DO stars, among which ∼2/3 later become DA stars. We also infer that the DO-to-DA transition occurs at substantially different temperatures (75,000 K >

> 30,000 K) for different objects, implying a broad range of hydrogen content within the DO population. Furthermore, we identify 127 hybrid white dwarfs, including 31 showing evidence of chemical stratification, and we discuss how these stars fit in our understanding of the spectral evolution. Finally, we uncover significant problems in the spectroscopic mass scale of very hot (

> 60,000 K) white dwarfs.
Inclination Excitation of Solar System Debris Disk Due to Stellar Flybys
Authors: Moore Nathaniel W. H. , Li Gongjie , Adams Fred C. 
Published: September 2020

Abstract
Most stars form in clusters where relatively close encounters with other stars are common and can leave imprints on the orbital architecture of planetary systems. In this paper, we investigate the inclination excitation of debris disk particles due to such stellar encounters. We derive an analytical expression that describes inclination excitation in the hierarchical limit where the stellar flyby is distant. We then obtain numerical results for the corresponding particle inclination distribution in the nonhierarchical regime using a large ensemble of N-body simulations. For encounters with expected parameters, we find that the bulk inclination of the disk particles remains low. However, a distinct high-inclination population is produced by prograde stellar encounters for particles with final pericenter distances above 50 au. The maximum extent i

t
of the inclination distribution scales with the inclination of the encounter

for massive star flybys with low incoming velocity. The inclination distribution of observed trans-Neptunian objects places constraints on the dynamical history of our solar system. For example, these results imply an upper limit on product of the number density n of the solar birth cluster and the Sun’s residence time τ of the form nτ ≲ 8 × 104 Myr pc−3. Stronger constraints can be derived with future observational surveys of the outer solar system.
Spectroscopic Monitoring of Rapidly Rotating Early-type Stars in the Pleiades Cluster
Authors: Torres Guillermo 
Published: September 2020

Abstract
Radial velocities for the early-type stars in the Pleiades cluster have always been challenging to measure because of the significant rotational broadening of the spectral lines. The large scatter in published velocities has led to claims that many are spectroscopic binaries, and in several cases, preliminary orbital solutions have been proposed. To investigate these claims, we obtained and report here velocity measurements for 33 rapidly rotating B, A, and early F stars in the Pleiades region, improving significantly on the precision of the historical velocities for most objects. With one or two exceptions, we do not confirm any of the previous claims of variability, and we also rule out all four of the previously published orbital solutions, for HD 22637, HD 23302, HD 23338, and HD 23410. We do find HD 22637 to be a binary but with a different period (71.8 days). HD 23338 is likely a binary as well, with a preliminary 8.7 yr period also different from the one published. Additionally, we report a 3635 day orbit for HD 24899, another new spectroscopic binary in the cluster. From the 32 bona fide members in our sample, we determine a mean radial velocity for the Pleiades of

, or

when objects with known visual companions are excluded. Adding these astrometric binaries to the new spectroscopic ones, we find a lower limit to the binary fraction among the B and A stars of 37%. In addition to the velocities, we measure

for all stars, ranging between 69 and 317

.
Testing the Accuracy of the Tangent Point Method for Determining the Milky Way’s Inner Rotation Curve
Authors: Chiu Camille K. , Strigari Louis E. 
Published: September 2020

Abstract
The tangent point method (TPM) is commonly used to calculate the rotation curve of the inner portion of the Milky Way, relying on the assumption that along one line of sight, the point tangent to the Galactic center is the point where the observed radial velocity is an extremum. This work compares rotation curves derived from the TPM, using neutral hydrogen gas data, and direct measurements of stellar positions and velocities from the Gaia Satellite. The Gaia data indicate that the rotation curve based upon stellar kinematics is much shallower than that previously reported based on the TPM, especially in the inner regions of the Galaxy. Additionally, based on stellar kinematics, the locations of the extremum radial velocities and tangent points often differ. While these results are consistent with previously published simulations, future data from the Gaia satellite will allow for further confidence in determining an accurate rotation curve.
La rébellion peule et la « guerre pour la terre »
Authors: Bouju Jacky 
Published: September 2020

Cet article vise à démêler l’enchevêtrement des causes de conflit pour l’accès aux ressources agropastorales dans les plaines transfrontalières sous-administrées de la cinquième région, au centre du Mali, et dans les provinces du Soum et de l’Ouadalan, au nord du Burkina Faso. Dans un contexte de saturation foncière, l’aggravation des conflits entre pasteurs transhumants et propriétaires fonciers a conduit à une contestation violente de l’inégalité des droits d’accès aux ressources agropastorales au sein de la société peule. L’affaiblissement brutal de l’État et l’insurrection djihadiste ont fourni l’occasion aux lignages peuls dominés de s’armer et de se rebeller contre leurs élites. Une forme de « gouvernement par la violence » s’est instaurée qui semble avoir pour enjeu, à terme, le contrôle des terres arables, des pâturages et de la ressource hydrique.
Mobilités, conflits fonciers et jeunesse
Authors: Montaz Léo 
Published: September 2020

La crise ivoirienne (1999-2011) est en partie la conséquence de l’exclusion des cadets de l’accès aux ressources foncières dans le centre et l’ouest de la zone forestière. La fin du « compromis houphouëtien » qui permettait aux étrangers d’accéder à la terre et aux jeunes autochtones de s’émanciper par la migration vers les centres urbains s’est notamment traduite par un retour massif des jeunes vers leurs localités d’origines. Confrontés à un durcissement des règles lignagères, ils critiquent et transforment ces règles afin d’acquérir une meilleure autonomie politique. À partir de l’exemple du village de Mahidio, cet article contribue à la réflexion sur les recompositions des pouvoirs au village en insistant sur la dimension politique des mobilités en lien avec les enjeux fonciers.
De Prinkipo a Pulacayo: consideraciones sobre la historia del trotskismo boliviano
Authors: John Steven Sándor 
Published: September 2020

En la historia del movimiento trotskista mundial, Bolivia ha ocupado un lugar especial y en cierto grado excepcional. ¿En qué ha consistido la influencia histórica del trotskismo boliviano? ¿Cómo se explica? ¿Cuál fue su política durante la Revolución Boliviana de 1952 y cuáles fueron los resultados de dicha orientación? En el artículo se plantean algunas consideraciones sobre estos temas.
Design and Construction of a Portable Electronic Sleep Inducer for Low Resource Settings
Authors: Ahmed Yusuf K , Zubair Abdul R , Sani Saminu , Akande Kareem A , Afolayan Mubarak A , Afonja Awawu A 
Published: September 2020

Good quality restful sleep is indispensable to mental and physical health. However, pressure due to busy life style, work and sometimes physiological factors have placed constraints on adequate and healthy sleep pattern leading to several sleep disorders such as insomnia, sleep apnea and restless leg syndrome. Sleep disorder affects the quality of life of such patients as it grossly reduces efficiency at work and leads to poor mental and physical health. Available drugs to treat this disorder are addictive with strong adverse effects, while existing devices to provide intervention are very expensive. Hence, the development of an affordable, portable electronic sleep inducer with display unit is presented. It uses geomagnetic property of the earth coupled with electromagnetic wave induction to stimulate sleep. The signal frequency was generated by IC4047 coupled with Arduino Uno and ATmega 328p for device control. The output of this electronic sleep inducer is found to satisfactorily produce 5.89 Hz and 3.58 Hz for theta and delta waves respectively, needed to induce sleep. It consumes less power and it is rechargeable. Keywords— Sleep; Sleep disorder; Insomnia; Geomagnetic wave;
Abstracting Packet Header Information for Intrusion Detection in High-Speed Networks
Authors: Adewole Lawrence B , Adeyeye Catherine R , Adetunmbi Adebayo O , Ayogu Bosede A , Folorunsho Olaiya 
Published: September 2020

Increase in network traffic coupled with increasing adoption of end-to-end encryption of network packets are two major factors threatening the potency, or even the relevance, of packet-based intrusion detection techniques. Also, end-to-end encryption makes it nearly impossible for network and host-based intrusion detection system to analyze traffic for potential threats and intrusion, hence, the need for an alternative approach. Flow-based intrusion detection system has been proposed as an alternative to a packet-based intrusion detection system as it relies on information embedded in packet header and various statistical analyses of network flow for detecting intrusion. This paper proposes packet header information abstraction model for intrusion detection on the UNSW-NB15 intrusion dataset. Four existing classification algorithms which include: Classification and Regression Tree (CART), Naïve Bayes (NB), K-Nearest Neighbour (KNN), and Support Vector Machine (SVM) are used to evaluate the degree of representativeness of the proposed model using accuracy, sensitivity and specificity evaluation metrics. An average accuracy of 97.95% was recorded across the four models with the minimum accuracy of 97.76 on SVM and best accuracy of 98.05% on CART while Sensitivity of 1.0 on both CART and NB shows that the model performs well in correctly identifying attacks in the network. The average specificity of 0.98 is also an indication of low false positive. Results obtained show that the proposed abstraction model achieves high accuracy, sensitivity and specificity. The model can be used as filter on a high-speed network whereby packets flagged as an attack can be subjected to further analysis.Keywords—Data Abstraction, Data Mining,Flow-based, Intrusion detection, Network Security
Asuhan Keperawatan Ners Dan Ners Spesialis Dengan Pendekatan Interpersonal Peplau Dan Caring Swanson Pada Klien Perilaku Kekerasan Di Ruang Akut Rumah Sakit Jiwa
Authors: Setiawan Heri , Keliat Budi Anna , Putri Yossie Susanti Eka 
Published: September 2020

Resiko perilaku kekerasan merupakan diagnosa keperawatan yang paling banyak ditemukan di Ruang Akut Rumah Sakit Jiwa Dr H Marzoeki Mahdi Bogor yaitu sebanyak 71,62%, Tujuan penulisan artikel ini untuk menjelaskan mengetahui hasil asuhan keperawatan ners dan ners spesialis menggunakan pendekatan model teori interpersonal Peplau. Tindakan keperawatan ners diberikan pada individu, keluarga dan kelompok, tindakan keperawatan ners spesialis dilakukan dengan pemberian latihan asertif (AT) dan psikoedukasi keluarga (PEK). Metode yang digunakan yaitu analisis kasus. Analisis dilakukan pada 8 klien perilaku kekerasan dalam kurun waktu 16 Februari – 18 April 2016. Hasil pelaksanaan pemberian asuhan keperawatan di ruang akut rumah sakit jiwa menunjukan terjadinya penurunan tanda gejala klien perilaku kekerasan, peningkatan kemampuan klien dalam mengatasi perilaku kekerasan, dan peningkatan kemampuan keluarga dalam merawat anggota keluarga dengan perilaku kekerasan di ruang akut rumah sakit jiwa. Kata kunci: perilaku kekerasan; ruang akut; tanda gejala; kemampuan
Media Sosial Sebagai Strategi Promosi Kesehatan Reproduksi Pada Remaja
Authors: Rahmatika Qory Tifani , Rahman La Ode Abd 
Published: September 2020

Healthy People 2020 menjadikan kesehatan reproduksi sebagai indikator kesehatan utama untuk kelompok usia remaja. Dengan pengguna aktif di Indonesia mencapai 130 juta dan sebagian besar adalah kelompok usia remaja, media sosial berpotensi digunakan sebagai sarana promosi kesehatan reproduksi dalam meningkatkan pengetahuan, sikap, dan perilaku kesehatan reproduksi pada remaja. Tujuan dari studi literatur ini yaitu menelaah pengaruh media sosial sebagai metode promosi kesehatan reproduksi pada remaja. Studi literatur dipilih sebagai metode dalam penulisan ini dengan mengumpulkan literatur dari database ProQuest, Science Direct, dan Sage Journals. Literatur yang dipilih adalah jurnal full text berbahasa Inggris. Hasil dari studi literatur ini yaitu beberapa studi menggunakan media sosial sebagai strategi intervensi tunggal maupun kombinasi dengan intervensi yang lain dalam melakukan promosi kesehatan reproduksi pada remaja. Studi menunjukkan hasil yang efektif dari media sosial sebagai media promosi kesehatan untuk meningkatkan pengetahuan, sikap, dan perilaku kesehatan pada remaja yang berkaitan dengan kesehatan reproduksi. Disimpulkan bahwa media sosial memiliki keefektifan untuk digunakan oleh tenaga kesehatan termasuk perawat sebagai strategi promosi kesehatan reproduksi pada remaja. Kata Kunci: Media Sosial, Promosi Kesehatan, Kesehatan Reproduksi Remaja
Adherence to statin therapy in patients with high and very high cardiovascular risk in real clinical practice
Authors: Podzolkov V. I. , Bragina A. E. , Vasil’eva L. V. , Grintsevich Yu. P. , Rodionova Yu. N. 
Published: September 2020

Despite the proven efficacy of lipid-lowering therapy, adherence to long-term statin therapy in patients with cardiovascular disease remains low.Aim. To study adherence to long-term statin therapy and factors associated with adherence in patients with high and very high cardiovascular risk (CVR) in real clinical practice.Materials and methods. The single-center cohort study included 53 patients (mean age 68.1 ± 10.2 years) with high or very high CVR on the SCORE scale and have been taking statins for at least 3 months prior to inclusion in the study. The level of low-density lipoprotein cholesterol (LDL-C), cognitive impairment (MoCA test), anxiety and depression (HADS scale), presence of senile asthenia (FRAIL scale), M. Charlson comorbidity index were assessed. Adherence to statin therapy was assessed using the original questionnaire. The correlation between patient adherence and ordinal variables for the scores of the studied scales was studied.Results. Completely adherent to statin therapy were only 12 (22%) patients, 14 (26%) were insufficiently adherent, 27 (51%) were non-adherent. The target level of LDL-С was achieved in 13 (25%) patients. 38 (72%) patients showed a decrease in cognitive functions; a positive correlation was found between adherence and the MoCA test (r = 0.44, p = 0.04). Clinical and subclinical depression and anxiety were noted in 12 (23%) and 14 (26%) patients, respectively. A statistically significant negative correlation was found between adherence and depression (r = –0.32; p = 0.04) and a positive correlation between adherence and anxiety (r = 0.44; p = 0.04). There was no statistically significant correlation between adherence and the FRAIL fragility scale, as well as the M. Charlson comorbidity index.Conclusions. Depression and cognitive decline are associated with decreased adherence to statin therapy.
Comparative evaluation of pre- and postoperative administration of citicoline: clinical outcomes and the volume of ischemic brain damage after meningioma removal
Authors: Sufianova G. Z. , Shapkin A. G. , Sufianov A. A. , Khlеstkina M. S. , Sufianov R. A. , Mashkin A. M. 
Published: September 2020

In the experimental model of cerebral ischemia, citicoline has shown greater eﬀectiveness with its preventive use compared with therapeutic one.Aim. To study the main clinical outcomes and the dynamics of morphometric indicators of ischemic brain damage according to computed tomography (CT) data in patients with meningiomas of the skull base in the postoperative period against the background of prophylactic and therapeutic administration of citicoline.Materials and methods. The study included 53 patients aged 40 to 69 years with the skull base meningiomas. The ﬁrst (control) group (n=17) and the third group, in which citicoline was administered in the postoperative period for 7–21 days at a dose of 1000 mg 2 times a day intravenously (n=25), were formed retrospectively. The second group (n=11), in which citicoline was administered prophylactically 1.5–2.5 hours before surgery at a dose of 2000 mg intravenously, was formed prospectively. We evaluated the main clinical outcomes and CT morphometry data.Results. The average time spent in the intensive care unit was minimal in the second group: 9.6±3.2 days vs 17.6±3.7 days in the control (p=0.049). Postoperative mortality was 24% in the control group, 9% in the second group, and 20% in the third group. The survival time in the ﬁrst group was less than 21 days, over 21 days in the second and third groups. The groups did not diﬀer in neurological outcomes and overall in-hospital stay. The average volume of ischemic brain damage on the ﬁrst day after surgery in the second group was less than in the control group, and amounted to 111.7±15.2 cm3 against 151.3±17.1 cm3, respectively (p=0.044).Conclusion. The prophylactic administration of citicoline before a tumor removal operation may have eﬀective potential for reducing the severity and prevalence of ischemic cerebral edema. Further randomized clinical trials are needed.