bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Host Galaxy and Rapidly Evolving Broad-line Region in the Changing-look Active Galactic Nucleus 1ES 1927+654
Authors: Li Ruancun , Ho Luis C. , Ricci Claudio , Trakhtenbrot Benny , Arcavi Iair , Kara Erin , Hiramatsu Daichi 
Published: July 2022

Abstract
Changing-look active galactic nuclei (AGNs) present an important laboratory to understand the origin and physical properties of the broad-line region (BLR). We investigate follow-up optical spectroscopy spanning ∼500 days after the outburst of the changing-look AGN 1ES 1927+654. The emission lines displayed dramatic, systematic variations in intensity, velocity width, velocity shift, and symmetry. Analysis of optical spectra and multiband images indicates that the host galaxy contains a pseudobulge and a total stellar mass of

3.56

−
0.35

+
0.38

×

10

9

M

⊙

. Enhanced continuum radiation from the outburst produced an accretion disk wind, which condensed into BLR clouds in the region above and below the temporary eccentric disk. Broad Balmer lines emerged ∼100 days after the outburst, together with an unexpected, additional component of narrow-line emission. The newly formed BLR clouds then traveled along a similar eccentric orbit (e ≈ 0.6). The Balmer decrement of the BLR increased by a factor of ∼4–5 as a result of secular changes in cloud density. The drop in density at late times allowed the production of He i and He ii emission. The mass of the black hole cannot be derived from the broad emission lines because the BLR is not virialized. Instead, we use the stellar properties of the host galaxy to estimate

M

BH

=

1.38

−
0.66

+
1.25

×

10

6

M

⊙

. The nucleus reached near or above its Eddington limit during the peak of the outburst. We discuss the nature of the changing-look AGN 1ES 1927+654 in the context of other tidal disruption events.
AstroSat View of the Newly Discovered X-Ray Transient MAXI J1803–298 in the Hard-intermediate State
Authors: Chand Swadesh , Dewangan G. C. , Thakur Parijat , Tripathi Prakash , Agrawal V. K. 
Published: July 2022

Abstract
We perform comprehensive temporal and spectral analysis of the newly discovered X-ray transient MAXI J1803–298 using an AstroSat target of opportunity observation on 2021 May 11 during its outburst. The source was found to be in the hard-intermediate state. We detect type C quasi-periodic oscillations (QPOs) at the frequencies of ∼5.4 and ∼6.3 Hz along with a subharmonic at ∼2.8 Hz in the 3–15 keV band. The frequency and fractional rms amplitude of the QPO in the 15–30 keV band are found to be higher than those in the 3–15 keV band. We find soft lags of ∼3.8 and ∼6.8 ms for the respective QPOs at ∼5.4 and ∼6.3 Hz, whereas a soft lag of ∼4.7 ms is found at the subharmonic frequency. The increase in the soft lags at the QPO frequencies with energy is also observed in other black hole transients and attributed to the inclination dependence of the lags. The rms energy spectra indicate the power-law component to be more variable than the disk and reflection components. We find a broad iron line with an equivalent width of ∼0.17–0.19 keV and a reflection hump above ∼12 keV in the energy spectrum. Based on the X-ray spectroscopy and considering the distance to the source as 8 kpc, the estimated mass (∼8.5–16 M
⊙) and spin (a ≳ 0.7) of the black hole suggest that the source is likely to be a stellar mass Kerr black hole X-ray binary.
Tidal Heating at Europa Using the Multifrequency Analysis of Tidal Heating Toolkit
Authors: Walker Matthew E. , Rose Rhoden Alyssa 
Published: July 2022

Abstract
We evaluate the thermal response of Europa’s ice shell to the gravity perturbation of Jupiter using a comprehensive toolkit (dubbed Multifrequency Analysis of Tidal Heating, MATH) that evaluates tidal heating and heat flow in planetary bodies. The tidal heating source is radially resolved and can capture the temperature-dependent pattern of heat production with depth. We use MATH to examine the steady-state thermal profiles through a conductive Europan ice shell, considering the tidal effects of long-term eccentricity variations, obliquity, libration, and nonsynchronous rotation (NSR). In each case, we vary the shell thickness, calculate the combination of tidal heating generated within the shell and heat flux into the shell base that would maintain that thickness, and track the resulting surface heat flux. We find that Europa’s ice shell should be, on average, no more than 12–17 km thick, due to long-term eccentricity variations, and could be even thinner if the basal heat flux is nonnegligible. These results are more consistent with inferences from Europa’s surface geology than previous tidal heating studies that used simplified interior models, a globally averaged tidal heating rate, and/or constant eccentricity. We also find that, for a given stable shell thickness, the surface heat flow remains fairly consistent even as other parameters are varied, perhaps providing an additional method for constraining ice shell thicknesses on ocean-bearing moons. Although Europa’s tidal heat budget and shell thickness seem relatively insensitive to constant obliquity, libration, and NSR, moons in closer-in orbits may be more sensitive to these other effects and should be further explored.
Effects of Aqueous Ginger Extract on Some Hematology Parameters, Serum Iron, Ferritin, and Total Iron Binding Capacity in Male Mice (Mus musculus L.)
Authors: Almajeed Mustafa Abd , Ibrahim Nawal Khalil 
Published: July 2022

Background: Ginger is a common spice with wide range of medicinal properties, the extract have wide chemical substances play important role for many effects in humans and animals.
Aim: The present study aimed to evaluate the effect of ginger on some hematological parameters as well as on serum iron, ferritin and total iron binding capacity.
Subjects and methods: Thirty mice adult male be split into three groups, two treated groups and one control group (each group contains ten mice). The experimental groups were injected by intraperiton (IP) with 0.1 ml in every dose, (2 mg and 4 mg/mice) of Zingibar officinale extract was injected in treated groups, also a stander group received the distill water with the same dose.
Results: PCV significantly rises in both dose, also Hb, RBC, MCV and MCHC appeared significant increase only in high dose. While MCH clarified not significant affect in two doses. TIBC not reach to significant differences in groups treated with two potion, whereas, rises serum iron and ferritin significantly appeared in high dose only compared with group in control at (p<0.01).
Conclusions: The ginger safe and help in iron absorption and can be beneficial as a promising therapy to prevent and treat iron deficiency anemia.
Traduction des modèles et prescriptions internationales d’enseignement supérieur et de recherche : analyse comparée des communautés belges
Authors: Fallon Catherine 
Published: July 2022

La Belgique est, depuis les dernières décennies, engagée dans un double processus de transformation constitutionnelle, associant fédéralisation et européanisation. Depuis que les régions et communautés ont hérité des compétences en matière d’enseignement supérieur et de recherche (ESR), les deux principales régions, Flandre et Wallonie, affichent des trajectoires spécifiques et présentent aujourd’hui deux régimes différents. Cet article entend retracer les évolutions de ces deux territoires, dessinant, à partir du modèle historique belge, des projets collectifs spécifiques tout en les inscrivant dans des courants sectoriels plus larges, voire mondialisés : les acteurs participent à des réseaux variés qu’ils contribuent à créer, associant universitaires et industriels aux projets des responsables politiques. L’approche socio-historique aborde les transformations des instruments d’action publique (Lascoumes, 2007) : cette décomposition de l’analyse permet de suivre et comparer des mécanismes d’ajustement complexes, propres à chaque territoire, mettant en évidence la différence de la mobilisation des acteurs, la stabilité et la plasticité des institutions face à l’accélération de l’internationalisation et la mise en place de nouveaux projets politiques régionaux.
On the application of the forming limit diagrams for quality control of blanks for wheelbarrow of ASTM A1008 carbon steel
Authors: Cruz-González Celso , Vargas-Arista Benjamín , León-Méndez Iván , Guzmán-Flores Isidro 
Published: July 2022

The effectivity of the forming limit diagrams in manufacturing wheelbarrow by deep-drawing is shown because of the high material scrap rate which reduces productivity. Several chemical, mechanical testing and microstructural analysis were performed to examine sheet quality and their impact on these diagrams. Chemical analysis revealed that Steel 1 and Steel 3 sheets fulfilled the specification without assuring adequate forming process. However, the higher titanium content of Steel 2 improved its formability since it promoted the formation of fine precipitates, thus refining the grain size. This steel had the highest ASTM grain size number G (9.11), which is the lowest average grain size (13 µm) compared to the other steels, which had G values in the range 8.7 to 9.11. Moreover, Steel 2 sheets had the greatest plastic strain ratio (rm = 1.80), the highest strain-hardening exponent (n = 0.250), the lowest anisotropy ∆r = 0.31), yielding better results in deep-drawing strain distribution, the highest forming limit strain (28%) and the highest uniform elongation zone, favoring that failure sites did not occur.
“All the wealth of the world will be in your hands”
Authors: Couto Dejanirah 
Published: July 2022

Intended to provide accurate knowledge of the Red Sea at the dawn of the 16th century, the Letters of Afonso de Albuquerque (1452‑1515), appointed first governor of the “Estado da Índia” (1509‑1515) do not deal exclusively with the commercial and geopolitical dynamics of the region. In spite of the significance of these issues, they also contain valuable geographical descriptions of the insular world and the shores of the Red Sea (“Mar Roxo”), explored in 1513 by Albuquerque in his attempt to conquer Aden. This article examines the most significant information about this area – coastal morphologies, ports, anchorages –, navigation practices and political geography, reported in the wake of the 1513 campaign, which, as it should be recalled, intended to gather strategic information to block the entrance of the Red Sea, which was largely dominated by the Mamluk sultanate, the fierce enemy of the Portuguese, at the beginning of the 16th century.
Promouvoir les applications mobiles de sport et d’activité physique : des promesses d’empowerment teintées d’enjeux stratégiques
Authors: SOULÉ Bastien 
Published: July 2022

Le nombre de personnes ayant recours à des objets connectés ou applications mobiles dans le cadre de leur activité physique va croissant. Cet article analyse la manière dont ces trackers et applications sont présentés par leurs producteurs, avec une focalisation sur deux pionnières (Fitbit et Strava). Leurs modèles de revenus exercent une influence majeure : il faut optimiser la vente de wearables, le téléchargement des applications et le recueil de données d’activité, tout en donnant l’impression que l’utilisateur est le principal bénéficiaire. Le storytelling à l’œuvre conduit donc à survaloriser les promesses de ces dispositifs, tout en occultant la compréhension de modèles d’affaires qui dépendent pour partie de l’exploitation secondaire des données. Les promesses en question sont façonnées pour cadrer avec les intérêts stratégiques des éditeurs d’applications.
Development of Pediatric Dosage Preparation for CVD 103-HgR Live Oral Cholera Vaccine
Authors: Duffin R. Paul , Delbuono Michael , Nishioka Kylie , Shabram Paul , Patel Amish A. 
Published: July 2022

ABSTRACT.
PXVX0200 is an oral cholera vaccine that is approved for use by the U.S. Food and Drug Administration and European Medicines Agency under the tradename Vaxchora. The vaccine is supplied as two packets, one containing buffer component and the other the active component, that are mixed with water and ingested. The aim of this study was to develop vaccine preparation methods that are appropriate for administering PXVX0200 to children. Developing oral liquid medication for children has unique challenges, including administration volume and palatability. These challenges were addressed by preparing PXVX0200 in different volumes and testing the potency of the vaccine in the presence of sweeteners, flavorings, and food and drinks. Vaccine potency, defined as colony-forming units/dose, was used to determine the compatibility of PXVX0200 with different vaccine preparation methods. We found that the reconstitution volume can be reduced from 100 to 50 mL to accommodate children aged 2 to 6 years and to 10 mL for children aged 6 months to 2 years, as long as the buffer concentration is the same as for the approved (100 mL) dose. Sucrose or stevia sweeteners may also be added without affecting the vaccine potency. Reconstitution in juices or foods was challenging because of effervescence caused by bicarbonate in the buffer component. An alternate preparation method was developed for reconstitution in baby formula. Vaccine preparation methods to make PXVX0200 appropriate for pediatric administration will facilitate administration of the vaccine to improve compliance and protect children from cholera infection while traveling.
Farklı Vulkanizasyon Parametrelerinin Karbon ve Kaolen-Silika Karışımlarının Çapraz Bağ Yoğunluğuna ve Mekanik Özelliklerine Etkileri
Authors: ERBEK CÖMEZ Ezgi , ÖZTÜRK Selda 
Published: July 2022

Kauçuk malzemeler vulkanizasyonun bulunmasıyla beraber birçok alanda kullanılmaktadır. Artan talep ileberaber farklı kauçuk türlerinin yanı sıra kauçuk karışımlarında siyah ve renkli çalışmalar da yapılmaya
başlanmıştır. Bu çalışmada etilen propilen dien monomer (EPDM) kauçuk kullanılarak oluşturulan siyah ve
renkli reçetelerin, farklı vulkanizasyon parametrelerindeki özellikleri incelenmiştir. Siyah reçetelerde farklı
oranlarda karbon siyahı, renkli reçetelerde farklı oranlarda silika kullanılmıştır. Her bir karışım farklı vulkanizasyon parametrelerine tabii tutulmuş, sonrasında mekanik değerleri ve çapraz bağ yoğunlukları
(CLD) incelenmiştir. Siyah reçetelerde dolgu miktarının artması ile CLD’nin arttığı ve CLD, sertlik ve
modüllerin maksimum değerlerin 10 dakika (dk) vulkanizasyonunda, renkli karışımların da dolgu miktarının artmasıyla CLD’nin arttığı ve CLD, sertlik ve modüllerin maksimum değerlerinin 15dk vulkanizasyonunda olduğu bulunmuştur. Çalışma sonucunda vulkanizasyon parametrelerinin ve kullanılan dolgu malzemelerin karışımların çapraz bağ yoğunluğu miktarına ve mekanik değerlere etki ettiği sonucuna varılmıştır.
Structure Analysis and Moral Message the Legend of Mount Pinang as Teaching Materials in Vocational High School
Authors: Juwartini Juwartini 
Published: July 2022

This research is aimed at understanding the text structure and the moral value of Legenda Gunung Pinang and their application as teaching material. Qualitative descriptive method is applied in this research. The analysis of the text structure shows that there are theme, characters, story board, point of view and message. The way how to apply the Legenda Gunung Pinang as the use of local literature for teaching literature appreciation in SMK can be seen in the syllabus and the lesson plan. The use of Legenda Gunung Pinang as the teaching material for literature appreciation can increase the students’ love to their local literature and culture and it is also used as a media for applying the noble values of the culture in a legend.
Uso de antibióticos en COVID-19 leve, estudio piloto
Authors: Pacheco Montoya Daniel Alfredo , Galán Robles Melanie Anahí , Medina González Mirela Jackeline , Armijos-Delgado Sarahí Nicole , Soto-Alvarado John Fernando , Jiménez Alulima Oliver Steven 
Published: July 2022

Introducción: La pandemia de COVID-19, provocó un gran impacto en la prescripción de antibióticos y en la aceleración e incremento de la aparición de microorganismos multiresistentes. Objetivo: Determinar el uso de antibióticos en el tratamiento de personas con diagnóstico de COVID-19 leve. Materiales y Métodos: Se trató de un estudio cuantitativo, transversal, retrospectivo, que evaluó a 128 personas mayores de edad, con diagnóstico de COVID-19 leve, a quienes se les aplicó una encuesta validada sobre uso racional de antibióticos. Los resultados obtenidos se analizaron con la ayuda de programas estadísticos. Resultados: 62,5% de los participantes fueron mujeres, con una edad promedio de 33 años. El 41,4% de los encuestados, recibieron antibióticos como parte de su tratamiento. Se identificó alguna comorbilidad en el 34,2% de personas, de quienes el 40% recibió antimicrobianos, sin existir una relación lineal, entre la presencia de comorbilidades y el empleo de antibióticos (IC 95%, p>0,01). El 81,1% de las prescripciones, fueron realizadas durante el segundo año de la pandemia. Se utilizaron macrólidos en el 47,6% de los casos y betalactámicos en el 24,6%. El 22,6% de evaluados, recibieron más de un antimicrobiano. Conclusiones: El uso de antibióticos en pacientes con COVID-19 leve, es frecuente, siendo los macrólidos el grupo más utilizado, y no se relaciona con la existencia de comorbilidades.
Gestión de riesgos en contratos de construcción. Propuesta para reducir plazos y costos, año 2019
Authors: Soto Ruben Gómez Sánchez 
Published: July 2022

Es de interés nacional la solución del problema público que surge como resultados de las brechas en infraestructura existente en el país; por lo que, es natural se hace necesario la formulación de proyectos de inversión pública para viabilizar, diseñar y ejecutar obras orientadas a la solución de tan importante problema. Pero como se detallado en la presente investigación la ejecución de tales obras públicas, están sujetas a los efectos de riesgos típicos que se traducen en mayores plazos y costos, incrementando el desconcierto de la población afectada por tan importante problema público.
La investigación desarrollada permite comprobar que “La aplicación de la gestión de riesgos en contratos de construcción en el marco de las políticas públicas impacta directamente en reducir las malas prácticas de plazos y costos en la ejecución de obras en el sector construcción en el Perú, año 2019”. Basado en esta comprobación se pueden definir varias acciones en los diferentes sectores involucrados y además prever otras investigaciones sobre la formación de los profesionales relacionados con la formulación, diseño y ejecución de las obras publicas.
Reducing Academic Stress with Journaling Techniques: A Review
Authors: Siregar Ilham Khairi , Sari Ifit Novita 
Published: July 2022

The education process in higher education allows new students to feel the pressure of changing the learning process from high school to the lecture process in higher education. Students with considerable pressure feel the academic stress condition in themselves. Academic resilience is expected to reduce student academic stress, namely increasing student resilience in facing difficulties and pressures in the lecture process. The journaling technique is an alternative treatment that can be given to students, as part of the rational emotive behavior therapy approach. This figure suggests an expressive writing technique to cognitive gaps (academic stress) experienced by students.

Proses pendidikan di perguruan tinggi memungkinkan mahasiswa baru merasakan tekanan perubahan proses pembelajaran dari sekolah menengah ke proses perkuliahan di perguruan tinggi. Mahasiswa dengan tekanan yang cukup besar merasakan kondisi stres akademik dalam dirinya. Ketahanan akademik diharapkan dapat mengurangi stres akademik mahasiswa yaitu meningkatkan ketahanan mahasiswa dalam menghadapi kesulitan dan tekanan dalam proses perkuliahan. Teknik penjurnalan merupakan salah satu alternatif perlakuan yang dapat diberikan kepada siswa sebagai bagian dari pendekatan terapi perilaku emosi rasional. Gambar ini menunjukkan teknik menulis ekspresif untuk kesenjangan kognitif (stres akademik) yang dialami siswa.
Optimalisasi Penetrasi Internet bagi Intensitas Pelaksanaan Rapat Anggota Tahunan (RAT) dan Peningkatan Volume Usaha Koperasi
Authors: Sonoto John Fery 
Published: July 2022

This study aims to simulate the contribution of internet penetration to the intensity of the implementation of the Annual Membership Meeting (RAT) and the achievement of business volume by cooperatives. The research methodology is literature study and field study. Researchers conducted a study of the contribution of internet penetration, the implementation of RAT, and the achievement of business volume, especially in the regions of East Java Province, Central Java Province, and West Java Province from 2017 to 2019. West Java Province has not optimally utilized the contribution of internet penetration to carry out RAT and has not optimally used the internet as a business process strategy to generate business volume in the receipt of cooperative goods and services compared to the Provinces of East Java and Central Java. This research is limited to the areas of West Java, Central Java, and East Java Provinces. The contribution of this research to the implementation of the adoption of information and communication technology for the board and management team of cooperatives in Indonesia is preparing to welcome the digitization of cooperatives in Indonesia to strengthen internal cooperatives in making business decisions for sustainable cooperative development.
Penelitian ini bertujuan untuk mensimulasikan kontribusi penetrasi internet terhadap intensitas pelaksanaan Rapat Anggota Tahunan (RAT) dan pencapaian volume usaha oleh koperasi. Metodologi penelitian ini adalah studi litertur dan studi lapangan. Peneliti melakukan kajian kontribusi penetrasi internet, pelaksanaan RAT dan pencapaian volume usaha khususnya di wilayah Provinsi Jawa Timur, Provinsi Jawa Tengah dan Provinsi Jawa Barat tahun 2017 sampai dengan tahun 2019. Provinsi Jawa Barat belum secara optimal memanfaatkan kontribusi penetrasi internet untuk melaksanakan RAT dan belum optimal menggunakan internet sebagai strategi bisnis proses untuk menghasilkan volume usaha dalam penerimaan barang dan jasa koperasi dibandingkan dengan Provinsi Jawa Timur dan Jawa Tengah. Penelitian ini terbatas pada wilayah Provinsi Jawa Barat, Jawa Tengah dan Provinsi Jawa Timur. Kontribusi penelitian ini bagi implementasi adopsian teknologi informasi dan komunikasi bagi dewan pengurus maupun tim manajemen koperasi di Indonesia dalam mempersiapkan diri menyambut digitalisasi koperasi di Indonesia sehingga memperkuat internal koperasi dalam pengambilan keputusan bisnis untuk pengembangan koperasi yang berkelanjutan.