bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nanocomposite fabricated by low energy silver ions implanted into dielectrics and sensitive to the refractive index of overlay
Authors: Zhao Jiaxian , Qu Lun , Wang Jun , Liu Changlong 
Published: February 2021

Abstract
Based on 30 keV silver ions at a fluence of 6 × 1016 ions·cm−2 implanted into SiO2, Al2O3 and YAG, we found that the nanocomposite layers embedded with silver nanoparticles are sensitive to the refractive index of overlays on the implanted surface. By dropping liquids with different refractive indices on the surface of nanocomposite layer, the reflection spectra of the rear surface would shift. The sample with YAG as the substrate has better performance by comparing with the other two samples. The prepared structures have the advantages of simple structure and stable performance, which has potential applications in localized surface plasmon resonance sensors.
Ansiedad y depresión en adolescentes
Authors: Basantes Moscoso Deysi Rosario , Villavicencio Narvaez Lilia del Carmen , Alvear Ortiz Luis Fernando 
Published: February 2021

Ansiedad y depresión, dos síntomas muy comunes presentes en la adolescencia, situación que genera múltiples retrasos académicos, afectivos y conductuales. La migración, disfunción familiar, embarazos prematuros, desórdenes alimenticios, conflictos familiares, falta de habilidades sociales, enamoramientos, etc., son factores determinantes que marcan la personalidad del adolescente. Estos efectos provocan constantes cuadros de depresivos, tristeza, baja autoestima, síntomas alarmantes que se desencadenan en un fracaso escolar decisivo. La presente investigación tuvo como objetivo controlar la ansiedad y depresión en adolescentes de una Unidad Educativa Fiscal de la ciudad de Riobamba, que cursaron el noveno año de Educación Básica, edad comprendida entre 13 y 14, dichos adolescentes son hijos de madres solteras, de hogares disfuncionales, han atravesado problemas emocionales, discriminación y maltrato. mediante la aplicación de una guía psicopedagógica de talleres de relajación, esquema corporal y creatividad. Se utilizó instrumentos de investigación como el cuestionario, la encuesta y guía psicopedagógica que permitió evidenciar un antes y un después, mejorando el desempeño académico y las relaciones personales y afectivas dentro y fuera del aula. Mediante la aplicación de estos talleres se pudo lograr que los estudiantes se relajen con facilidad, predisposición al trabajo, motivación, autoestima elevada, capaces de controlar sus emociones y utilizar su esquema corporal, como una herramienta de interacción cognoscitiva, observándose notoriamente cambio de conductas, hábitos y mejor desempeño académico.
Sosyal Medyanın Siyasal İletişim Aracı Olarak Kullanılması: Twitter Ankara Milletvekilleri Örneği
Authors: ÖZKAN Münir , TÜRKMEN Deniz 
Published: February 2021

Bu çalışmanın amacı, Ankara milletvekillerinin bir sosyal medya aracı olan Twitter ’ı kullanım sıklıklarını tespit ederek, mevcut Twitter hesaplarından temsil ettikleri Ankara hakkındaki gelişmeleri, sorunları ne sıklıkla kamuoyuna paylaştıklarını belirlemektir. Yapılan çalışmada 2018 yılının 15 Ekim -15 Kasım tarihleri arasında, Ankara’yı temsil eden 36 milletvekilinin Twitter ’daki şahsi hesaplarından yaptıkları paylaşımlar incelenmiştir. Bu incelemeler yapılırken içerik analizi yöntemi uygulanmıştır. Elde edilen bulgulara göre, belirtilen tarih aralığında 33 milletvekilinin toplamda 2916 adet paylaşım yaptığı tespit edilmiş olup, Ankara milletvekillerinin günlük tweet atma oranı %2,94 olarak saptanmıştır. Milletvekillerinin içinde en çok tweet AK Parti milletvekilleri tarafından paylaşılırken en az paylaşımı BBP milletvekilinin yaptığı görülmüştür. Toplamda AK Parti milletvekilleri 930, CHP vekilleri 846, MHP vekilleri 524, İYİ Parti milletvekilleri 315, HDP vekili 223 ve BBP milletvekili 78 adet paylaşım yapmıştır. Vekillerin tweetlerde ele aldıkları konular incelendiğinde %87,1 oranında ulusal konular ile ilgili paylaşım yaptıkları görülürken, %12,8 oranında yerel konular ile ilgili paylaşım yaptıkları tespit edilmiştir.
Analysis of Factors Affecting Financial Well Being Millennial Generation in Batam
Authors: Suprapto Yandi 
Published: February 2021

The purpose of this study is to determine whether financial behavior, financial socialization agents, financial attitude, financial stress, and financial literacy can influence financial well being in millennial generation in Batam City. Financial well being is described when a person is able to prosper in the field of financial finance. Welfare is reflected in the ability to meet and manage all needs and desires. While millennial is the most current generation so that it can be a hope and reflection of a country. This research method begins with the distribution of questionnaires to the people of Batam city aged 15-19 years.
Data were collected as many as 300 respondents then processed with multiple regression research models using SPSS. Variable financial literacy, financial attitude and financial socialization agents provide a significant positive relationship to financial well being. Meanwhile financial stress has a significant negative relationship with financial well being. Then for financial behavior variables show no significant relationship to financial well being.
PENGARUH KOMPENSASI, MOTIVASI, KOMITMEN PADA ORGANISASI DAN PELATIHAN KERJA PADA KINERJA KARYAWAN TOKO RITEL ALFAMART DAN INDOMARET DI BATAM
Authors: Yuswardi Yuswardi 
Published: February 2021

Penelitian ini berkaitan dengan faktor yang mempengaruhi kinerja karyawan pada toko ritel modern Indomaret dan Alfamart di Batam. Pertumbuhan sektor toko ritel modern Alfamart dan Indomaret ini sudah menjangkau wilayah keramaian di pusat perdaagangan hingga ke lingkungan perumahan. Variabel yang diteliti dalam penelitian ini mencakup kompensasi, motivasi, komitmen terhadap organisasi dan pelatihan kerja terhadap kinerja karyawan di toko ritel modern tersebut.

Penelitian ini melibatkan sekitar 250 responden melalui kuesioner yang disebarkan pada karyawan gerai Alfamart dan Indomaret di Batam. Kuesioner disebar dan didapatkan pengembalian kuesioner sebanyak 240 dan kemudian diuji datanya dengan menggunakan SPSS. .

Berdasarkan hasil uji data diketahui bahwa semua variabel independen yang diuji berpengaruh signifikan positif terhadap kinerja karyawan dari gerai Alfamart dan Indomaret di Batam. Hasil penelitian ini diharapkan dapat memberi manfaat bagi perusahaan dalam merancang program peningkatan kinerja karyawan yang akan menopang pertumbuhan usaha menjadi lebih baik lagi.
Analisis Perilaku Keuangan Mahasiswa Universitas Pelita Bangsa dalam Keputusan Investasi
Authors: Soleha Erin , Hartati Nani 
Published: February 2021

Masyarakat dengan perilaku finansial yang cenderung konsumtif menghasilkan berbagai hal buruk pada perilaku keuangan misalkan minimnya kegiatan menabung dan investasi. Mengelola keuangan dengan baik, merencanakan dan mengalokasikan sebagian pendapatan untuk invetasi sangat penting untuk memberikan manfaat di masa datang. Penelitian ini menganalisis pengaruh pengetahuan keuangan, sikap keuangan, gaya hidup, latar belakang keluarga dan penghasilan dalam keputusan berinvestasi menggunakan metode kuantitatif deskriptif dengan sumber data yang diperoleh dari kuesioner yang disebar kepada 228 mahasiswa yang memenuhi kriteria. Analisis data menggunakan analisis statistic deskriptif, uji asumsi klasik, uji regresi linear berganda dengan bantuan program software SPSS. Hasil dari penelitian ini bahwa pengetahuan keuangan, sikap keuangan, gaya hidup, latar belakang keluarga dan pendapatan mempunyai pengaruh positif terhadap keputusan investasi.
The Radio Luminosity-risetime Function of Core-collapse Supernovae
Authors: Bietenholz M. F. , Bartel N. , Argo M. , Dua R. , Ryder S. , Soderberg A. 
Published: February 2021

Abstract
We assemble a large set of 2–10 GHz radio flux density measurements and upper limits of 294 different supernovae (SNe), from the literature and our own and archival data. Only 31% of SNe were detected. We characterize the SN radio lightcurves near the peak using a two-parameter model, with t
pk being the time to rise to a peak and L
pk the spectral luminosity at that peak. Over all SNe in our sample at D < 100 Mpc, we find that t
pk = 101.7±0.9 days and that L
pk = 1025.5±1.6 erg s−1 Hz−1, and therefore that generally 50% of SNe will have L
pk < 1025.5 erg s−1 Hz−1. These L
pk values are ∼30 times lower than those for only detected SNe. Types Ib/c and II (excluding IIn’s) have similar mean values of L
pk but the former have a wider range, whereas Type IIn SNe have ∼10 times higher values with L
pk = 1026.5±1.1 erg s−1 Hz−1. As for t
pk, Type Ib/c have t
pk of only 101.1±0.5 days while Type II have t
pk = 101.6±1.0 and Type IIn the longest timescales with t
pk = 103.1±0.7 days. We also estimate the distribution of progenitor mass-loss rates,

, and find that the mean and standard deviation of

are −5.4 ± 1.2 (assuming v
wind = 1000 km s−1) for Type Ib/c SNe, and −6.9 ± 1.4 (assuming v
wind = 10 km s−1) for Type II SNe excluding Type IIn.
Production and Persistence of Extreme Two-temperature Plasmas in Radiative Relativistic Turbulence
Authors: Zhdankin Vladimir , Uzdensky Dmitri A. , Kunz Matthew W. 
Published: February 2021

Abstract
Turbulence is a predominant process for energizing electrons and ions in collisionless astrophysical plasmas, and thus is responsible for shaping their radiative signatures (luminosity, spectra, and variability). To better understand the kinetic properties of a collisionless radiative plasma subject to externally driven turbulence, we investigate particle-in-cell simulations of relativistic plasma turbulence with external inverse Compton cooling acting on the electrons. We find that ions continuously heat up while electrons gradually cool down (due to the net effect of radiation), and hence the ion-to-electron temperature ratio T

i
/T

e
grows in time. We show that T

i
/T

e
is limited only by the size and duration of the simulations (reaching

), indicating that there are no efficient collisionless mechanisms of electron–ion thermal coupling. This result has implications for models of radiatively inefficient accretion flows, such as observed in the Galactic center and in M87, for which so-called two-temperature plasmas with

have been invoked to explain their low luminosity. Additionally, we find that electrons acquire a quasi-thermal distribution (dictated by the competition of turbulent particle energization and radiative cooling), while ions undergo efficient nonthermal acceleration (acquiring a harder distribution than in equivalent nonradiative simulations). There is a modest nonthermal population of high-energy electrons that are beamed intermittently in space, time, and direction; these beamed electrons may explain rapid flares in certain high-energy astrophysical systems (e.g., in the Galactic center). These numerical results demonstrate that extreme two-temperature plasmas can be produced and maintained by relativistic radiative turbulence.
The First Extensive Exploration of UV-bright Stars in the Globular Cluster NGC 2808
Authors: Prabhu Deepthi S. , Subramaniam Annapurni , Sahu Snehalata 
Published: February 2021

Abstract
In this study, we identified and characterized the hot and luminous UV-bright stars in the globular cluster NGC 2808. We combined data from the Ultra Violet Imaging Telescope (UVIT) on board the Indian space satellite AstroSat with the Hubble Space Telescope UV Globular Cluster Survey data for the central region (within

) and Gaia and ground-based optical photometry for the outer parts of the cluster. We constructed the UV and UV-optical color–magnitude diagrams, compared the horizontal branch (HB) members with the theoretical zero- and terminal-age HB models, and identified 34 UV-bright stars. The spectral energy distributions of the UV-bright stars were fitted with theoretical models to estimate their effective temperatures (12,500–100,000 K), radii (0.13–2.2 R
⊙), and luminosities (∼40–3000 L
⊙) for the first time. These stars were then placed on the Hertzsprung–Russell diagram, along with theoretical post-HB evolutionary tracks, to assess their evolutionary status. The models suggest that most of these stars are in the asymptotic giant branch (AGB)-manqué phase, and all except three have evolutionary masses <0.53 M
⊙. We also calculated the theoretically expected number of hot post-(early)-AGB stars in this cluster and found the range to match our observations. Seven UV-bright stars located in the outer region of the cluster, identified from the AstroSat/UVIT images, are ideal candidates for detailed follow-up spectroscopic studies.
Efficacy of Moderately Dosed Etoposide in Macrophage Activation Syndrome–Hemophagocytic Lymphohistiocytosis
Authors: Horne AnnaCarin , von Bahr Greenwood Tatiana , Chiang Samuel C.C. , Meeths Marie , Björklund Caroline , Ekelund Maria , Erensjö Peter , Berg Stefan , Hagelberg Stefan , Bryceson Yenan T. , Andersson Ulf , Henter Jan-Inge 
Published: February 2021

ObjectiveMacrophage activation syndrome (MAS) constitutes 1 subtype of the hyperinflammatory syndrome hemophagocytic lymphohistiocytosis (HLH), and the term MAS-HLH was recently proposed for HLH with underlying autoimmune/autoinflammatory conditions. The mortality of MAS-HLH has been estimated at 5–10%. Here we report our experiences with moderately dosed etoposide in severe MAS-HLH; the objective was to effectively reduce severe hyperinflammatory activity with limited side effects.MethodsIn addition to conventional antiinflammatory treatment, moderately dosed etoposide was administered to 7 children affected by rapidly progressing MAS-HLH with central nervous system (n = 5) and/or pulmonary (n = 5) involvement. Three had underlying systemic juvenile idiopathic arthritis (sJIA), 2 had atypical sJIA (no arthritis at diagnosis), and 2 had systemic lupus erythematosus. We performed lymphocyte cytotoxicity analyses in all 7 and genetic analyses in 6.ResultsAll children promptly responded to moderately dosed etoposide (50–100 mg/m2 once weekly), added to conventional MAS-HLH treatment that was considered insufficient. The mean accumulated etoposide dose was 671 mg/m2 (range 300–1050 mg/m2) as compared to 1500 mg/m2 recommended in the first 8 weeks of the HLH-94/HLH-2004 protocols. One child developed neutropenic fever and another neutropenic sepsis (neutrophils 0.3 × 109/L at therapy onset). Five of 7 children had low percentages (< 5%) of circulating natural killer (NK) cells prior to or in association with diagnosis; NK cell activity was pathologically low in 2 of 5 children studied. Disease-causing variants in HLH-associated genes were not found. All children were alive at latest follow-up (2–9 yrs after onset); neurological symptoms had normalized in 4 of 5 affected children.ConclusionModerately dosed etoposide may be beneficial in severe and/or refractory MAS-HLH.
A Phase III Randomized Study of Apremilast, an Oral Phosphodiesterase 4 Inhibitor, for Active Ankylosing Spondylitis
Authors: Taylor Peter C. , van der Heijde Désirée , Landewé Robert , McCue Shannon , Cheng Sue , Boonen Annelies 
Published: February 2021

ObjectiveTo evaluate the efficacy and safety of apremilast, an oral phosphodiesterase 4 inhibitor, in patients with active ankylosing spondylitis (AS).MethodsThis phase III, multicenter, double-blind, placebo-controlled study (ClinicalTrials.gov: NCT01583374) randomized patients with active AS (1:1:1) to placebo, apremilast 20 mg twice daily, or apremilast 30 mg twice daily for 24 weeks, followed by a long-term extension phase (up to 5 yrs). The primary endpoint was Assessment of the Spondyloarthritis international Society 20 (ASAS20) response at Week 16. The effect of treatment on radiographic outcomes after 104 weeks was assessed using the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS).ResultsIn total, 490 patients with active AS were randomized in the study (placebo: n = 164; apremilast 20 mg twice daily: n = 163; apremilast 30 mg twice daily: n = 163). The primary endpoint of ASAS20 response at Week 16 was not met (placebo: 37%; apremilast 20 mg twice daily: 35%; apremilast 30 mg twice daily: 33%; P = 0.44 vs placebo). At Week 104, mean (SD) changes from baseline in mSASSS were 0.83 (3.6), 0.98 (2.2), and 0.57 (1.9) in patients initially randomized to placebo, apremilast 20 mg twice daily, and apremilast 30 mg twice daily, respectively. The most frequently reported adverse events through Week 104 were diarrhea, nasopharyngitis, upper respiratory infection, and nausea.ConclusionNo clinical benefit was observed with apremilast treatment in patients with active AS. The safety and tolerability of apremilast were consistent with its known profile.
Evaluation and Validation of a Patient-completed Psoriatic Arthritis Flare Questionnaire
Authors: Helliwell Philip S. , Tillett William , Waxman Robin , Coates Laura C. , Brooke Mel , FitzGerald Oliver , Packham Jonathan C. , McHugh Neil 
Published: February 2021

ObjectiveEvaluation of a psoriatic arthritis (PsA), multidimensional, patient-completed disease flare questionnaire (FLARE).MethodsThe FLARE questionnaire was administered to 139 patients in a prospective observational study. The “gold standard” of flare was based on patient opinion. Test-retest reliability was evaluated by intraclass correlation coefficient (ICC). Disease activity was measured by the Psoriatic Arthritis Disease Activity Score (PASDAS), Group for Research and Assessment of Psoriasis and PsA (GRAPPA) Composite Exercise (GRACE), Composite Psoriatic Disease Activity Index (CPDAI), and Disease Activity Index for Psoriatic Arthritis (DAPSA).ResultsThe most common symptoms of a PsA flare were musculoskeletal, followed by fatigue, frustration, loss of function, and an increase in cutaneous symptoms. The test-retest ICC for the FLARE questionnaire was 0.87 (95% CI 0.72–0.94). The optimum cut-off to identify a flare of disease was 4/10 (sensitivity 0.82, specificity 0.76; area under the curve 0.85). For those patients scoring ≥ 4, the mean score for the composite measures was as follows (score for those not reporting a flare in parentheses): PASDAS 5.3 ± 1.3 (3.1 ± 1.6); GRACE 4.5 ± 1.2 (2.2 ± 1.4); CPDAI 8.9 ± 2.5 (4.7 ± 3.1); and DAPSA 38.2 ± 20.3 (16.8 ± 14.9). In a new flare, the increase in composite measure score was calculated as follows: 1 for PASDAS and GRACE, 2 for CPDAI, and 7 for DAPSA. Agreement between the definition of flare using the cut-off of 4 from the questionnaire, and that indicated by the subject in a separate, standalone question was 0.57 (Cohen κ).ConclusionA PsA flare displays escalation of symptoms and signs across multiple domains. The FLARE questionnaire has external validity in terms of both composite disease activity and overall patient opinion about the state of their condition.
Le développement des compétences interculturelles au moyen du jumelage international dans des universités française et canadienne
Authors: Le Callonnec Lucie 
Published: February 2021

Cette étude s’intéresse au parcours en mobilité internationale d’étudiants et, plus particulièrement, à l’une des pratiques mise en place par leurs universités d’accueil pour développer leurs compétences interculturelles et faciliter leur intégration à la communauté étudiante locale : le jumelage international. Pour cela, elle s’appuie sur deux séries d’entretiens menés auprès de neuf étudiants internationaux au début et à la fin de leur séjour dont cinq d’entre eux sont partis étudier à Ottawa (Canada) et quatre, à Montpellier (France). À leur retour dans leur pays d’origine, ils ont également répondu à un questionnaire. Enfin, des entrevues ont aussi été réalisées auprès de sept membres de bureaux internationaux canadiens et français. Au regard des résultats obtenus, il est intéressant de voir que les membres des bureaux internationaux mettent, majoritairement, un point d’honneur à intégrer l’étudiant international en prenant appui sur sa population étudiante locale via des programmes tels que le jumelage international. Pourtant, malgré l’intérêt qu’ont pu montrer des étudiants internationaux à l’égard de ce dispositif, les résultats ont souligné que si l’étudiant international entend entrer en contact et créer des relations avec la communauté locale à son arrivée dans le pays d’accueil, la réalité est telle que, souvent, à la fin de son séjour, celui-ci admet avoir été, finalement, peu en contact avec les étudiants locaux. Il est donc pertinent de s’attarder sur l’intégration et les compétences interculturelles qu’ont pu développer les étudiants internationaux durant leur séjour et sur le rôle qu’a pu jouer le jumelage dans ce processus d’apprentissage.
Prenatal diagnosis of vascular rings and outcome
Authors: Bakhru Shweta , Koneti Nageswara Rao , Patil Sujata , Dhulipudi Bhargavi , Dash Tapan , Kolar Geeta , Vavilala Suseela 
Published: February 2021

Background :
Vascular rings (VRs) present with varied symptoms and may result in significant morbidity before an accurate diagnosis is made. Prenatal diagnosis may be useful to plan surgery after birth.

Objectives :
The purpose of the study was to see the feasibility of accurate diagnosis of VR during antenatal ultrasound examination and describe their outcome.

Methods :
This is a retrospective observational study between January 2014 and December 2019. Vascular rings were diagnosed on the basis of three vessel tracheal view and neck vessels arrangements on fetal echocardiogram. Postnatal evaluation by transthoracic echocardiography and computerized tomography angiogram was performed. Surgical repair was done as per standard indications.

Results :
A total of 35 cases of fetal VRs (median gestational age: 24 weeks [range: 19–35]) were diagnosed during the study period. There were four dichorionic diamniotic twin gestation pregnancies. The right aortic arch (RAA) with anomalous left subclavian artery (ALSA) was suspected in 31 fetuses, double aortic arch (DAA) in 3, and circumflex aorta in 1. Twenty-six (74%) patients had successful deliveries. One patient had a spontaneous miscarriage, 2 underwent termination, and 6 were lost to follow-up. Postnatal assessment showed RAA with ALSA in 18, DAA in 5, circumflex aorta in 2, and no abnormality in 1. Twenty-two (86%) were operated (RAA with ALSA: 17, DAA: 4, and circumflex aorta: 1) and four were waiting for surgery. Two patients died due to prematurity-related complications. All survivors are symptom free during follow-up (median: 2.24; range: 0.2–5.6 years).

Conclusions :
Fetal echocardiography enables prenatal diagnosis and planning of postnatal repair of VRs.