bluuebunny/crossref_metadata_2025 huggingface dataset:
A piros ötven árnyalata – változatok Piroskára
Authors: Gesztelyi Hermina
Published: April 2022

In this paper I examine the most popular folk tale versions and the contemporary Hungarian children literature adaptations of the story known as Little Red Riding Hood, mainly concentrate on the boarder context and explorable intentions of the texts. Besides the narrative analysis, the visual representation is also considered, because it basically determines the reception and the fixed interpretation of the story. With all this, the aim of the paper is to show the various functions of the different versions and to analyze what kind of visual and textual changes made them suitable for children. The brief outlook taken to the paraphrases made for adults makes the operations and validity of the folk tale as metalanguage much clearer.
Olvasás/tér/kép
Authors: Hermann Zoltán
Published: April 2022

The illustrated book does not simply attempt to display a particular meaning, but confront the receiver with the temporality and spatiality of reading and visual perception. Starting from the recognition of Derrida, it can be said that we could realise the same spatial structures in the case of written text as in the ones which define the European visual thinking, as the reception and contemplation of a painting is essentially the same as the „economy” of reading: the flat surface always create a fictional one. The good picture and children books are exactly do nothing more, but broadcast the elements of the imaginative thinking of European Civilization and Culture, help to learn and creatively reinterpret this tradition.
Illusztrált hagyomány
Authors: Margittai Zsuzsa
Published: April 2022

To each well-known fairy tale belongs a tradition of visual adaptations formed in centuries and still being formed and transformed. The alteration of visual interpretations also effects the story itself. The paper gives examples of this transformation from Hungarian children’s book illustration of today, amongst them the so-called Design book series and a picture book designed especially for blind people, which reinterprets the idea of a picturebook. Parallel to international trends these tendencies also refer to the transmedia storytelling conception of Henry Jenkins, while they strengthen the reception of the story through multisensorial perception.
Elmondom, tehát vagyok
Authors: Novák Zsófia
Published: April 2022

Thirteen Reasons Why tells the story of Hannah Baker, a teenager who commits suicide, but leaves behind a number of audiotapes explaining her decision and the events that lead to it. The novel, and its recent adaptation into a series by Netflix are extremely popular; however, they have also been severely criticised by psychologists and mental health advocates for their portrayal of bullying and suicide. Reflecting on the issues raised by these experts, and placing Thirteen Reasons Why in the wider context of escapist fiction, in my article I analyse how power relations function between the adolescent characters, how their identity is affected by physical and mental abuse; and I attempt to draw conclusions as to whether Thirteen Reasons Why belongs in the category of “harmful fiction”.
Az ifjúsági regény (arany)kora
Authors: Herédi Károly
Published: April 2022

The purpose of my paper is to explore the circumstances of the 1969 Vojvodina Hungarian novel writing competition, which served as a stage in the paradigm shift in (children’s) literature. I explore those intellectual movements, insights, forming poetical and thematic ways through which the (young adult) novel corpus in Vojvodina came into existence, and which corpus is defined by the novels of Nándor Gion, Ottó Tolnai and István Domonkos, among others.
Kamishibai, avagy a papírszínház újra meghódítja a világot
Authors: Simon Krisztina
Published: April 2022

This paper examines the possibility of using kamishibai as a supportive tool for pedagogical aims. The first part deals with the origins of this story-telling theatre emerging in the Japanese culture and reviewing the extensive and diverse methodological procedures that have led kamishibai to build into the education of many countries.
Logistic Basis for the Development of Arctic Tourism in Russia
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Tsvetkov Aleksandr Yu.
Published: April 2022

In our article we analyzed the transport accessibility of the subjects of the Arctic zone of Russian Federation for potential tourists. To do this, we estimated in points the material and time costs of tourists, traveling from the main centers of the formation of tourist flows in Russia (Moscow and St. Petersburg) to various Arctic destinations. For each administrative-territorial subject of the Arctic zone we have selected potential support logistic centers of the development of Arctic tourism, which will receive visiting tourists, provides them with basic services and redistributes them along tourist routes. These are mainly transport centers, connected with Moscow and St. Petersburg and with settlements on this territory. We referred to Murmansk, Apatity, Arkhangelsk, Naryan-Mar, Vorkuta, Salekhard, Norilsk, and Anadyr. As a result of the study, we have found that currently the most promising for the development of Arctic tourism is Murmansk region, its transport infrastructure is convenient for using by tourists and the development of Arctic tourist routes. Arkhangelsk Oblast and Yamalo-Nenets Autonomus Okrug are also promising, their support centers of the development of Arctic tourism are capable of receiving and redistributing tourist flows in Arctic directions. The least developed in terms of transport is the Arctic part of Yakutia, where there are no large transport hubs, capable of taking on the function of tourist distribution centers.
Foreign Economic Partners of Russia in the Arctic Zone
Authors:   Luzin Institute for Economic Studies, Federal Research Centre ", Vopilovskiy Sergey S. ,   Kola Science Centre of the Russian Acade-my of Sciences"
Published: April 2022

The study expresses the readiness of foreign investors to participate in Russia's Arctic innovation projects in difficult international economic and political conditions. Key high-tech projects of the Arctic zone of the Russian Federation (AZRF) with the participation of international economic partners are presented. The tendency of economic interaction in the field of high technologies is expressed, which has not been subjected to political pressure from outside. The key investor companies of the Asia-Pacific region (APR) and the European Union (EU), with which agreements on participation in projects have been signed, are presented. The intentions of the world powers for economic partnership in the Arctic projects of Russia are discussed, the most promising areas and areas of activity are outlined. It is determined that the domi-nant economic attention is shown by Asian countries. The leader is the People's Republic of China (PRC), interaction with which contributes to the acceleration of investment growth in these projects and has a wide range of industry areas. The implementation of AZRF projects with the participation of foreign part-ners has a positive multiplier effect on the development of the Northern Sea Route (NSR), the main eco-nomic highway of the Russian Arctic. The high value of Russian and international scientific research in the Arctic is determined, as well as the critical importance of the achievements of scientific and technological progress (STP), and as a result, a high-tech economy; the increased interest of the world powers in the work of the Arctic Council is indicated; the general attention to the thin ecological system of the Arctic is presented. The aim of the study is to assess the current economic agreements with the participation of international partners and to attract foreign investment in promising long-term Arctic projects in Russia.
New and little-known species of the genus Dicerapanorpa from northwestern Yunnan, China (Mecoptera: Panorpidae)
Authors: Wang Ji-Shen
Published: April 2022

The genus Dicerapanorpa Zhong & Hua, 2013 previously comprised 20 known
species that are endemic to central and southwestern China. Herein, I present new knowledge of this genus from northwestern Yunnan, including descriptions of four new species, Dicerapanorpa harmonia sp. nov., Dicerapanorpa huangguocongi sp. nov., Dicerapanorpa nakhi sp. nov., and Dicerapanorpa yangqichengi sp. nov. In addition, three little-known species, Dicerapanorpa tenuis Hu, Wang & Hua, 2019, Dicerapanorpa tjederi Carpenter, 1938, and Dicerapanorpa triclada (Qian & Zhou, 2001) are redescribed and illustrated based on new materials. An updated key to all known 24 species of Dicerapanorpa is provided, and a distributional map of Dicerapanorpa species from Yunnan is presented. The evolution and biology of Dicerapanorpa are briefly discussed.
Nomenclatural notes on the lesser horseshoe bat, Rhinolophus hipposideros (Mammalia: Chiroptera)
Authors: Benda Petr , Mlíkovský Jiří
Published: April 2022

The oldest nomenclatural history of the lesser horseshoe bat (Rhinolophus hipposideros) is summarised and discussed. Our search of literature showed that the author of the species name Rhinolophus hipposideros is André (1797); in the work Der Zoologe, oder Compendiöse Bibliothek des wissenswürdigsten aus der Thiergeschichte und allgemeinen Naturkunde published by 19 April 1797, André (1797: 65) used the name Noctilio Hipposideros and labelled it with “mihi”. André’s (1797) work takes priority over Deutsche Fauna oder kurzgefaßte Naturgeschichte der Thiere Deutschlands by Borkhausen (1797) to which the creation of the name Noctilio Hipposideros has been attributed; the publication date of the latter work for the purposes of zoological nomenclature is 30 September 1797. Revised dating is provided for the second volume of Bechstein’s translation of Pennant’s History of Quadrupeds to which the description of Rhinolophus hipposideros was also formerly assigned: Thomas Pennant’s allgemeine Uebersicht der vierfüßigen Thiere. It is shown to be published by 6 October 1799, although the book bears a title-page date 1800.
Digitaler und hautfreundlicher: Wie die Corona-Pandemie den beruflichen Hautschutz verändert hat
Authors: Todtenhöfer Andreas
Published: April 2022

Corona hat zu einem enormen Bedeutungszuwachs des beruflichen Hautschutzes und der Händedesinfektion geführt. Zwei Entwicklungen fallen dabei besonders auf und werden die Pandemie überdauern.
Gesundheitsrisiko: altes Frittierfett – was hilft, damit es dem Gast schmeckt?
Authors: Auge Dominik
Published: April 2022

Neben der geschmacklichen Komponente und der Gesundheit des Gastes ist auch der Arbeitsschutz ein wichtiges Thema beim Umgang mit Fritteusen. Dabei kann man mit der richtigen Handhabung die Lebensdauer des Frittieröls um bis zu 100 % verlängern und dabei noch Geld sparen. Die Einhaltung hygienischer Standards und entsprechender Vorgaben kann auch durch einen Dienstleister überprüft werden. Auch die Mitarbeiter werden entlastet, wenn man die Reinigung der Fritteusen und die Mikrofiltrierung des Öls auslagert.
Electrostatic pull-in application in flexible devices: A review
Authors: Cai Teng , Fang Yuming , Fang Yingli , Li Ruozhou , Yu Ying , Huang Mingyang
Published: April 2022

The electrostatic pull-in effect is a common phenomenon and a key parameter in the design of microscale and nanoscale devices. Flexible electronic devices based on the pull-in effect have attracted increasing attention due to their unique ductility. This review summarizes nanoelectromechanical switches made by flexible materials and classifies and discusses their applications in, among others, radio frequency systems, microfluidic systems, and electrostatic discharge protection. It is supposed to give researchers a more comprehensive understanding of the pull-in phenomenon and the development of its applications. Also, the review is meant to provide a reference for engineers to design and optimize devices.
DESAIN PENGEMBANGAN KAMPUNG MELAYU NONGSA SEBAGAI IDENTITAS WISATA PESISIR KOTA BATAM
Authors: Sutrisno Tri , Sidabutar Yuanita FD
Published: April 2022

Salah satu wilayah pesisir dan laut yang berpotensi untuk dikembangkan menjadi salah satu obyek wisata khususnya pariwisata adalah kampong melayu nongsa yang berasa di batu besar kecamatan nongsa kota batam. Kawasan wisata pesisir kampung melayu nongsa adalah salah satu potensi wisata yang dimiliki oleh kota batam yang terletak di kelurahan Batu Besar Kecamatan Nongsa. Berdasarkan. Potensi ini masih belum dimanfaatkan dan dikembangkan secara maksimal dan masih belum memiliki keterkaitan antar potensi wisata. Penelitian ini bertujuan untuk mengembangkan dan memanfaatkan potensi wisata tersebut. Tahapan pada penelitian ini, yaitu mengidentifikasi potensi wisata, menganalisa keterkaitan antar potensi, faktor pendukung pengembangan wisata, kriteria pengembangan wisata dan konsep pengembangan wisata. Pendekatan yang digunakan adalah kualitatif dengan metode deskriptif analisis .Penelitian ini menghasilkan tiga zona pengembangan, yaitu zona inti, pendukung dan konservasi. Dengan penanganan konsep pariwsata yang harus dilakukan antara lain meningkatkan daya tarik utama dengan penambahan jenis sajian atraksi wisata khususnya di zona inti wisata, mempertahankan kelestarian lingkungan dengan rehabilitasi kerusakan lingkungan, ketersediaan fasilitas pendukung dan penunjang khususnya di zona pendukung wisata serta menjalin linkage kawasan dengan obyek wisata lain yang dilakukan kerja sama antara masyarakat dengan wisatawan agar obyek wisata yang belum berkembang mendapatkan dampak dari wisata utamanya.
IMPLEMENTASI STRATEGI INFRASTRUKTUR BERBASIS KEARIFAN LOKAL MENJADI POTENSI EKONOMI MASYARAKAT DI KAMPUNG TUA
Authors: J.I. Danuwidjojo Yusuf , Yuanita Sidabutar FD
Published: April 2022

Pembangunan infrastruktur di kota Batam yang demikian pesat merupakan strategi Pemerintah Kota Batam dalam rangka pengembangan Kota Batam menjadi Bandar Dunia yang modern dan sejahtera. Dengan demikian diharapkan seluruh masyarakat kota Batam dapat hidup sejahtera, termasuk penduduk asli kota Batam yang Â berada di kampung tua. Beberapa isu terkait kondisi infrastruktur kampung tua saat ini antara lain : 1). belum ditetapkannya status lahan kampung tua di kota Batam sehingga pemerintah kota Batam belum mempunyai legalitas untuk melaksanakan pembangunan infrastruktur pada kawasan kampung tua secara maksimal. 2). Tersedianya infrastruktur kawasan maka masyarakat dapat mengembangkan potensi lingkungan, budaya yang telah ada di kampung tua. 3). Dengan demikian secara berkelanjutan kearifan lokal Melayu di Kampung tua akan terjaga keberlanjutannya, Hasil penelitian diharapkan akan menjadi pedoman pada kebijakan pengembangan kampung tua secara berkelanjutan seiring dengan pengembangan kota Batam Sebagai Bandar Dunia Madani yang Modern dan Sejahtera.
PENGARUH MODERNISASI SISTEM ADMINISTRASI PERPAJAKAN DAN SANKSI PERPAJAKAN TERHADAP TINGKAT KEPATUHAN WAJIB PAJAK ORANG PRIBADI PADA KANTOR PELAYANAN PAJAK (KPP) PRATAMA SELATAN BATAM KOTA
Authors: Edrianita Tessha , Mursal Mursal
Published: April 2022

This study aims to obtain empirical evidence about the effect of modernization of the tax administration system and tax sanctions on individual taxpayer compliance. This research was conducted at the South Batam Tax Service Office. The population in this study were all mandatory in the tax service office pratama south batam, then a sample of 100 respondents was taken using the slovin method. The test method used is multiple regression. The results showed the effect of the Modernization of the Tax Administration System, Tax Sanctions simultaneously using the F test, the F test value was 40,186 with a significance level (sig) = 0.000. Because the value of 0.000 <0.05, thus Ho is rejected with Ha accepted, the regression model obtained is significant or it can be said that the Effect of Modernization of the Tax Administration System and Tax Sanctions together has a significant effect on Individual Taxpayer Compliance.
PENGARUH KUALITAS PRODUK, KUALITAS LAYANAN DAN HARGA TERHADAP KEPUTUSAN PEMBELIAN PADA MORNING BAKERY CABANG KBC BATAM
Authors: Fajri Muhammad Ricky , Luthfi Andi M
Published: April 2022

Marketing is an important factor in the development of the business. Marketing must be continually upgraded and refurbished, of course itâ€™s not be separated from the needs and desires of consumers. So dynamic or uncertainty in knowing the consumer desires, so in this case required every business must always be able to make changes such as Service Quality, product quality, and price on purchase decisions Morning Bakery Otlet KBC, Batam. The purpose of this study is to analyze the effect of Service Quality, product quality and price on purchase decisions Morning Bakery Otlet KBC, Batam. The method used is multiple linear regression analysis. The study population of 3.200 consumers and samples used by 96 respondents. Research shows that the Service Quality, Product Quality and Price partially significant effect on the Product Buying Decision. Simultaneously Service Quality, Product Quality and Price have significant effect on the Product Buying Decision.
KAJIAN IN SILICO 6-PARADOL SEBAGAI HERBAL ALTERNATIF PENGOBATAN PENYAKIT ALZHEIMER
Authors: Bare Yohanes , Sari Dewi Ratih Tirto , Ujiana Wa Ode , Ra'o Paula Yunita Seku , Pada Krisna
Published: April 2022

Jahe mengandung beberapa senyawa volatil dan non-volatil yaitu 6-paradol yang memiliki manfaat kesehatan dan kinerja nutrisi dan antioksidan yang tinggi. Penelitian ini mengeksplorasi dan menyelidiki potensi senyawa bioaktif dari jahe sebagai anti-alzheimer. Aplikasi In silico dilakukan dalam penelitian, beberapa senyawa bioaktif disaring dan senyawa terpilih dari jahe digunakan 6-paradol (CID 94378), diperoleh struktur 3D dari Database PubChem. Choline acetyltransferase (PDB ID 2FY3) dipilih sebagai protein alzheimer dan berinteraksi dengan senyawa jahe. Kolin sebagai ligan asli untuk Choline acetyltransferase digunakan sebagai kontrol. Struktur tiga dimensi senyawa jahe dengan Choline acetyltransferase menunjukkan interaksi yang tepat, menunjukkan semua senyawa terpilih menurunkan aktivitas Choline acetyltransferase Menariknya, 6-paradol berinteraksi dengan Choline acetyltransferase di situs choline yang berarti menghambat interaksi kolin- Kolin asetiltransferase. Kesimpulan, senyawa 6-paradol memiliki aktivitas potensial untuk mengurangi Choline acetyltransferase Dinamika molekuler lebih lanjut, penelitian in vitro dan in vivo diperlukan
Impact of Variable Viscosity, Activation Energy on MHD Mixed convective Heat and Mass Transfer Flow of a Nanofluid in a Cylindrical Annulus
Authors:   Lecturer, Department of Mathematics, Government Degree College, Puttur, Chittoor(Dt), A.P., India, Gayathri Dr. P
Published: April 2022

We explore the impact of variable viscosity, activation energy on MHD mixed convective heat and mass transfer flow of nanofluid through a porous medium in a Co-axial cylindrical duct. The non-linear, coupled equations have been solved by using Galerkine finite method with quadratic polynomials. The behaviour of velocity, temperature and nanoconcentration is analyzed at different axial positions. The rate of heat and mass transfer has also been obtained for variations in the governing parameters. From the analysis we find that an increase in Nb and Nt reduces the velocity, increases the temperature and nanoconcentration.
FACTORS OF SUCCESS OR FAILURE OF AVIATION INDUSTRY: A MULTIPLE CASE STUDY OF AVIATION INDUSTRY AND CONCEPTULIZATION OF NEW THEORY OF SUCCESS
Authors: Bastola Dipak Prasad , Shrestha Binod Krishna , Bhattarai Prakash
Published: April 2022

A study of six different airlines has been performed using a case study method, in which a full range of leadership development theories and themes, as well as organizational performance measurement themes to measure organizational performance have been used. Three failure airlines and three successful airlines were chosen for the study. The scope of the research is limited to the airline as a unit of analysis. In this unit of analysis, further leadership and organization are considered as two sub-units of analysis. In the leadership sub-unit, mainly leadership traits and determinants, leadership perspectives, leadership styles and types of leadership have been studied, whereas in the organization sub-unit of analysis, human resources, technology, structure, safety culture, strategy, environments, the role of government, unhealthy competition, political instability and its effects, have thoroughly been studied. The results indicate that leadership and organizational performance of Nepali aviation industries are two sides of a coin and without effective leadership, better organizational performance is not possible. Besides other factors like culture, environment, technology and financial constrain, most of the cases revealed that the role of government leadership while formulating the policies and aviation leadership that fails in coopetition with governmental bodies due to lack of political competency are the two main factors for aviation organizational success or failure in Nepal. Success factors, as per the research findings, are: merit-based employee selection process, no discrimination based on gender, consideration of all employees as owners, and ownership feeling within employees due to profit distribution, highly qualified and well-educated employees. Finally, a new theory of successful airline has developed at the end of this research based on multiple case studies.
Modeling Integible Organizational Capital and Value Creation
Authors: Allouch Faissal , Hafiane Mohammed Amine
Published: April 2022

Purpose: Aim of this study is to investigate the relationships between the components of intangible organizational capital and value creation for unlisted Moroccan firms.
Methods: A conceptual model was used to establish the relationship between the components of organizational capital and value creation for large Moroccan firms. The study used a structured questionnaire to collect data from managers of 176 large firms. We used structural equation modeling through AMOS software to test the relationships between the different variables in our model.
Results:  The study shows that organizational capital has a non-significant positive effect on value creation. This demonstrates that the efforts of the large firm have not been able to codify tacit knowledge and further improve organizational capital.
Implications: The lack of organizational influence on value creation may signal that many firms prefer to invest heavily in physical capital without providing an adequate organizational structure. As a result, organizational capital deteriorates and leads to a lowering of the overall performance of intangible capital in addition to the value created for the company. The development of strong organizational capital can help to build an organizational culture to ensure that employees are able to innovate and deploy their know-how and experience for the benefit of the organization.
Limitations:  We still do not know how organizational capital changes over time. Therefore, a qualitative longitudinal study is recommended or a content analysis of companies' annual reports.
Mass Loss by Atmospheric Escape from Extremely Close-in Planets
Authors: Koskinen Tommi T. , Lavvas Panayotis , Huang Chenliang , Bergsten Galen , Fernandes Rachel B. , Young Mitchell E.
Published: April 2022

We explore atmospheric escape from close-in exoplanets with the highest mass-loss rates. First, we locate the transition from stellar X-ray and UV-driven escape to rapid Roche lobe overflow, which occurs once the 10–100 nbar pressure level in the atmosphere reaches the Roche lobe. Planets enter this regime when the ratio of the substellar radius to the polar radius along the visible surface pressure level, which aligns with a surface of constant Roche potential, is X/Z ≳ 1.2 for Jovian planets (Mp ≳ 100 M
⊕) and X/Z ≳ 1.02 for sub-Jovian planets (M

p
≈ 10–100 M
⊕). Around a Sun-like star, this regime applies to orbital periods of less than two days for planets with radii of about 3–14R⊕. Our results agree with the properties of known transiting planets and can explain parts of the sub-Jovian desert in the population of known exoplanets. Second, we present detailed numerical simulations of atmospheric escape from a planet like Uranus or Neptune orbiting close to a Sun-like star that support the results above and point to interesting qualitative differences between hot Jupiters and sub-Jovian planets. We find that hot Neptunes with solar-metallicity hydrogen and helium envelopes have relatively more extended upper atmospheres than typical hot Jupiters, with a lower ionization fraction and higher abundances of escaping molecules. This is consistent with existing ultraviolet transit observations of warm Neptunes, and it might provide a way to use future observations and models to distinguish solar-metallicity atmospheres from higher-metallicity atmospheres.
GCM-motivated Multidimensional Temperature Parametrization Scheme for Phase-curve Retrieval
Authors: Dobbs-Dixon Ian , Blecic Jasmina
Published: April 2022

We present a novel physically motivated, parametrized temperature model for phase-curve retrieval, able to self-consistently assess the variation in thermal structure in multidimensions. To develop this approach, we drew motivation from both full three-dimensional general circulation models and analytic formulations, accounting for the dominant dynamical feature of tidally locked planets, the planetary jet. Our formulation shows notable flexibility. It can generate planetary jets of various characteristics and redistribution efficiencies seen in the literature, including both standard eastward and unusual westward offset hotspots, as well as more exotic configurations for potential future observations. In our modeling scheme we utilize a tractable set of parameters efficient enough to enable future Bayesian analysis and, in addition to the resolved temperature structure, we return physical insights not yet derived from retrievals: the amplitude and the phase offset, and the location and the extent of the equatorial jet.
Multiline Assessment of Narrow-line Regions in z ∼ 3 Radio Galaxies
Authors: Terao Koki , Nagao Tohru , Onishi Kyoko , Matsuoka Kenta , Akiyama Masayuki , Matsuoka Yoshiki , Yamashita Takuji
Published: April 2022

In this paper, we use high-quality rest-UV spectra of three radio galaxies at z ∼ 3 observed with the FORS2 camera on the Very Large Telescope to measure the flux of several emission lines, including relatively faint ones, such as N iv]λ1486, O iii]λ1663, and [Ne iv]λ2424. Additionally, we collect fluxes of faint rest-UV emission lines in 12 z ∼ 3 radio galaxies from the literature. Previously, physical and chemical properties of narrow-line regions (NLRs) in high-z active galactic nuclei (AGNs) have been investigated mostly by using only strong rest-UV emission lines (e.g., N v
λ1240, C iv
λ1549, He ii
λ1640, and C iii]λ1909). Such strong-line diagnostics are based on various assumptions due to the limitation in the number of available emission-line constraints. In this work, both physical and chemical properties of NLR clouds in each object are estimated by fitting detailed photoionization models to the measured emission-line fluxes. We confirm that the metallicity of NLRs in AGNs at z ∼ 3 is solar or supersolar, without assumptions about the gas density and ionization parameter thanks to the constraints from the faint emission lines. This result suggests that high-z radio galaxies are already chemically mature at z ∼ 3.
Diffuse Flux of Ultra-high-energy Photons from Cosmic-Ray Interactions in the Disk of the Galaxy and Implications for the Search for Decaying Super-heavy Dark Matter
Authors: Bérat Corinne , Bleve Carla , Deligny Olivier , Montanet François , Savina Pierpaolo , Torrès Zoé
Published: April 2022

An estimate of the expected photon flux above 1017 eV from the interactions of ultra-high-energy cosmic rays with the matter in the Galactic disk is presented. Uncertainties arising from the distribution of the gas in the disk, the absolute level of the cosmic-ray flux, and the composition of the cosmic rays are taken into account. Within these uncertainties, the integrated photon flux above 1017 eV is averaged out over Galactic latitude less than 5°, between ≃3.2 × 10−2 km−2 yr−1 sr−1 and ≃8.7 × 10−2 km−2 yr−1 sr−1. The all-sky average value amounts to ≃1.1 ×10−2 km−2 yr−1 sr−1 above 1017 eV and decreases roughly as E
−2, making this diffuse flux the dominant one from cosmic-ray interactions for energy thresholds between 1017 and 1018 eV. Compared to the current sensitivities of detection techniques, a gain of between two and three orders of magnitude in exposure is required for a detection below ≃1018 eV. The implications for searches for photon fluxes from the Galactic center that would be indicative of the decay of super-heavy dark matter particles are discussed, as the photon flux presented in this study can be considered as a floor below which other signals would be overwhelmed.
Merger of a Neutron Star with a Black Hole: One-family versus Two-families Scenario
Authors: Di Clemente Francesco , Drago Alessandro , Pagliara Giuseppe
Published: April 2022

A kilonova (KN) signal is generally expected after a black hole–neutron star merger. The strength of the signal is related to the equation of state of neutron star matter, and it increases with the stiffness of the latter. The recent results obtained by NICER from the analyses of PSR J0740+6620 suggest a rather stiff equation of state, and the expected KN signal is therefore strong, at least if the mass of the black hole does not exceed ∼10 M
⊙, the adimensional spin parameter is not too small, and the orbit is prograde. We compare the predictions obtained by considering equations of state of neutron star matter satisfying the most recent observations and assuming that only one family of compact stars exists with the results predicted in the two-families scenario. In the latter a soft hadronic equation of state produces very compact stellar objects, while a rather stiff quark matter equation of state produces massive strange quark stars, satisfying NICER results. The expected KN signal in the two-families scenario is very weak: in particular, the hadronic star–black hole merger produces a much weaker signal than in the one-family scenario because the hadronic equation of state is very soft. Moreover, according to the only existing simulation, the strange quark star–black hole merger does not produce a KN signal because the amount of mass ejected is negligible. These predictions will be easily tested with the new generation of detectors if black holes with an adimensional spin parameter χ
BH ≳ 0.2 or a mass M
BH ≲ 4 M
⊙ can be present in the merger.
Precursors of the RNA World in Space: Detection of (Z)-1,2-ethenediol in the Interstellar Medium, a Key Intermediate in Sugar Formation
Authors: Rivilla Víctor M. , Colzi Laura , Jiménez-Serra Izaskun , Martín-Pintado Jesús , Megías Andrés , Melosso Mattia , Bizzocchi Luca , López-Gallifa Álvaro , Martínez-Henares Antonio , Massalkhi Sarah , Tercero Belén , de Vicente Pablo , Guillemin Jean-Claude , García de la Concepción Juan , Rico-Villas Fernando , Zeng Shaoshan , Martín Sergio , Requena-Torres Miguel A. , Tonolo Francesca , Alessandrini Silvia , Dore Luca , Barone Vincenzo , Puzzarini Cristina
Published: April 2022

We present the first detection of (Z)-1,2-ethenediol, (CHOH)2, the enol form of glycolaldehyde, in the interstellar medium toward the G+0.693−0.027 molecular cloud located in the Galactic Center. We have derived a column density of (1.8 ± 0.1) × 1013 cm−2, which translates into a molecular abundance with respect to molecular hydrogen of 1.3 × 10−10. The abundance ratio between glycolaldehyde and (Z)-1,2-ethenediol is ∼5.2. We discuss several viable formation routes through chemical reactions from precursors such as HCO, H2CO, CHOH, or CH2CHOH. We also propose that this species might be an important precursor in the formation of glyceraldehyde (HOCH2CHOHCHO) in the interstellar medium through combination with the hydroxymethylene (CHOH) radical.
Hubble Space Telescope Detection of the Nucleus of Comet C/2014 UN271 (Bernardinelli–Bernstein)
Authors: Hui 許 Man-To 文韜 , Jewitt David , Yu 余 Liang-Liang 亮亮 , Mutchler Max J.
Published: April 2022

We present a high-resolution observation of the distant comet C/2014 UN271 (Bernardinelli–Bernstein) using the Hubble Space Telescope on 2022 January 8. The signal of the nucleus was successfully isolated by means of a nucleus extraction technique, with an apparent V-band magnitude measured to be 21.65 ± 0.11, corresponding to an absolute magnitude of 8.63 ± 0.11. The product of the visual geometric albedo with the effective radius squared is

p

V

R

n

2

=
157
±
16

km2. If the ALMA observation by Lellouch et al. refers to a bare nucleus, we derived a visual geometric albedo of 0.033 ± 0.009. If dust contamination of the ALMA signal is present at the maximum allowed level (24%), we found an albedo of 0.044 ± 0.012 for the nucleus having an effective diameter of 119 ± 15 km. In either case, we confirm that C/2014 UN271 is the largest long-period comet ever detected. Judging from the measured surface brightness profile of the coma, whose logarithmic gradient varies azimuthally between ∼1.0 and 1.7 as a consequence of solar radiation pressure, the mass production is consistent with steady-state production but not with impulsive ejection, as would be produced by an outburst. Using aperture photometry, we estimated an enormous (albeit uncertain) mass-loss rate of ∼103 kg s−1 at a heliocentric distance of ∼20 au.
First Census of Gas-phase Metallicity Gradients of Star-forming Galaxies in Overdense Environments at Cosmic Noon
Authors: Li Zihao , Wang Xin , Cai Zheng , Shi Dong Dong , Fan Xiaohui , Zheng Xian Zhong , Malkan Matthew A. , Teplitz Harry I. , Henry Alaina L. , Bian Fuyan , Colbert James
Published: April 2022

We report the first spatially resolved measurements of gas-phase metallicity radial gradients in star-forming galaxies in overdense environments at z ≳ 2. The spectroscopic data are acquired by the MAMMOTH-Grism survey, a Hubble Space Telescope (HST) cycle 28 medium program. This program is obtaining 45 orbits of WFC3/IR grism spectroscopy in the density peak regions of three massive galaxy protoclusters (BOSS 1244, BOSS 1542, and BOSS 1441) at z = 2–3. Our sample in the BOSS 1244 field consists of 20 galaxies with stellar mass ranging from 109.0 to 1010.3
M
⊙, star formation rate (SFR) from 10 to 240 M
⊙ yr−1, and global gas-phase metallicity (

12
+
log
(
O

/

H
)

) from 8.2 to 8.6. At 1σ confidence level, 2/20 galaxies in our sample show positive (inverted) gradients—the relative abundance of oxygen increasing with galactocentric radius, opposite the usual trend. Furthermore, 1/20 shows negative gradients, and 17/20 are consistent with flat gradients. This high fraction of flat/inverted gradients is uncommon in simulations and previous observations conducted in blank fields at similar redshifts. To understand this, we investigate the correlations among various observed properties of our sample galaxies. We find an anticorrelation between metallicity gradient and global metallicity of our galaxies residing in extreme overdensities, and a marked deficiency of metallicity in our massive galaxies as compared to their coeval field counterparts. We conclude that the cold-mode gas accretion plays an active role in shaping the chemical evolution of galaxies in the protocluster environments, diluting their central chemical abundance, and flattening/inverting their metallicity gradients.
Resolving Massive Black Hole Binary Evolution via Adaptive Particle Splitting
Authors: Franchini Alessia , Lupi Alessandro , Sesana Alberto
Published: April 2022

The study of the interaction of a massive black hole binary with its gaseous environment is crucial in order to be able to predict merger rates and possible electromagnetic counterparts of gravitational-wave signals. The evolution of the binary semimajor axis resulting from this interaction has been recently debated, and a clear consensus is still missing because of several numerical limitations, i.e., fixed orbit binaries or lack of resolution inside the cavity carved by the binary in its circumbinary disk. Using on-the-fly particle splitting in the 3D meshless code gizmo, we achieve hyper-Lagrangian resolution, which allows us to properly resolve the dynamics inside the cavity—in particular, for the first time, the disks that form around the two components of a live binary surrounded by a locally isothermal gaseous circumbinary disk. We show that the binary orbit decays with time for very cold and very warm disks and that the result of the interaction in the intermediate regime is strongly influenced by the disk viscosity, as this essentially regulates the fraction of mass contained in the disks around the binary components, as well as the fraction that is accreted by the binary. We find the balance between these two quantities to determine whether the binary semimajor axis decreases with time.
Discovery of Nine Super Li-rich Unevolved Stars from the LAMOST Survey
Authors: Yan T.-S. , Shi J.-R. , Wang L. , Yan H.-L. , Zhou Z.-M. , Zhou Y.-T. , Fang X.-S. , Li C.-Q. , Chen T.-Y. , Xie X.-J.
Published: April 2022

Based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution spectroscopic survey (MRS), we report the discovery of nine super Li-rich unevolved stars with A(Li) > 3.8 dex. These objects show unusually high levels of lithium abundances, up to three times higher than the meteoritic value of 3.3 dex, which indicates that they must have experienced a history of lithium enrichment. It is found that seven of our program stars are fast rotators with v sin i > 9 km s−1, which suggests that the accretion of circumstellar matter may be the main contributor to the lithium enhancement of these unevolved stars; however, other sources cannot be excluded.
First record of the batfish, Halieutaea indica (Actinopterygii: Lophiiformes: Ogcocephalidae), from the Red Sea
Authors: Golani Daniel , Fricke Ronald , Appelbaum-Golani Brenda
Published: April 2022

The Indian handfish or batfish, Halieutaea indica Annandale et Jenkins, 1910, is recorded for the first time from the Red Sea. This report constitutes also the first record of the family Ogcocephalidae from this region.
Measuring medication adherence of hypertensive patients with monotherapy treatment in a community health center by utilizing medication possession ratio
Authors: Puspitasari Irma Melyani , Azizah Laila Nur , Sinuraya Rano Kurnia , Alfian Sofa Dewi , Abdulah Rizky
Published: April 2022

Adherence is a particular concern in treating hypertension, and non-adherence to antihypertensive drugs might cause uncontrolled hypertension. This study aimed to measure retrospectively the medication adherence of hypertensive patients with monotherapy treatment in a community health center (Puskesmas) in Bandung city, Indonesia. The retrospective patient data from 2011 to 2015 were obtained from an electronic prescription database. The patient data of those diagnosed with hypertension, >18 years old, and who received mono-antihypertensive therapy within a 12-month period were included in this study. To assess medication adherence, the medication possession ratio (MPR) was applied. Out of 780 patients, 93.6% of patients showed poor adherence, about 5.8% showed intermediate adherence, and 0.6% of patients had high adherence. Males and females showed different levels of adherence (p<0.05). Efforts should be focused on obtaining optimum clinical benefits and strengthening the effectiveness of health systems in Indonesia.
Peripheral Refraction and Contrast Detection Sensitivity in Pseudophakic Patients Implanted With a New Meniscus Intraocular Lens
Authors: Villegas Eloy A. , Marín José M. , Ginis Harilaos , Robles Consuelo , Alcón Encarna , Hervella Lucia , Prieto Pedro M. , Taña-Rivero Pedro , Artal Pablo
Published: April 2022

PURPOSE:

To evaluate peripheral refraction and contrast detection sensitivity in pseudophakic patients implanted with a new type of inverted meniscus intraocular lens (IOL) (Art25; Voptica SL) that was designed to provide better peripheral optics.

METHODS:

One month after cataract surgery, in 87 eyes implanted with the Art25 IOL, peripheral contrast detection sensitivity was measured psychophysically at 40° visual angle, both horizontally and vertically, and compared with a control group of 51 eyes implanted with standard biconvex IOLs. Thirty-one eyes with the Art25 IOL and 28 eyes from the control group were randomly selected to also measure peripheral refraction using a scanning Hartmann-Shack wavefront sensor along 80° in the horizontal meridian.

RESULTS:

Most patients achieved emmetropia and good visual acuity, and no significant adverse events were observed after cataract surgery with Art25 IOLs. Peripheral contrast detection sensitivity was significantly better (
P
< .01) in the group with the Art25 IOL in both directions (7.78 ± 3.24 vs 5.74 ± 2.60 vertical, 10.98 ± 5.09 vs 7.47 ± 3.96 horizontal), which was in agreement with the optical quality improvement in the periphery due to a reduction of defocus (1.97 and 1.21 diopters [D] at 40° temporal and nasal sides) and astigmatism (1.17 and 0.37 D at 40° temporal and nasal sides) that was statistically significant (
P
< .01) from 20° of eccentricity.

CONCLUSIONS:

Patients implanted with a new inverted meniscus IOL present a reduced amount of peripheral defocus and astigmatism compared to patients implanted with standard biconvex IOLs. This improvement in optical quality leads to better contrast detection sensitivity measured at 40° of eccentricity.

[
J Refract Surg
. 2022;38(4):229–234.]
Trifocal IOL Implantation in Eyes With Previous Laser Corneal Refractive Surgery: The Impact of Corneal Spherical Aberration on Postoperative Visual Outcomes
Authors: Cobo-Soriano Rosario , Rodríguez-Gutiérrez Beatriz , Bilbao-Calabuig Rafael , Tejerina Víctor , Fernández-Corrochano Alba , Druchkiv Vasyl , Beltrán Jaime
Published: April 2022

PURPOSE:

To analyze corneal aberrations and factors affecting visual outcomes after implantation of a trifocal intraocular lens (IOL) in eyes previously treated with laser corneal refractive surgery.

METHODS:

This retrospective case series included 222 consecutive eyes implanted with the trifocal FineVision Micro-F IOL (PhysIOL) after laser corneal refractive surgery. The series was divided into two groups according to safety outcomes after lensectomy: eyes with loss of one or more lines of corrected distance visual acuity (CDVA) [n = 59, 26.5%]) (failed eyes group) and eyes with no loss or gain in CDVA lines (n = 163, 73.4%]) (successful eyes group). Distribution of tomographic corneal aberrations (spherical aberration [Z
4
0
], comatic and root mean square of higher order aberrations [RMS-HOA]), laser corneal refractive surgery error, kappa angle, and CDVA after laser corneal refractive surgery were compared among both groups.

RESULTS:

Mean CDVA after lensectomy was 0.15 ± 0.07 logMAR (range: 0.05 to 0.30 logMAR) versus 0.03 ± 0.04 logMAR (range: 0.00 to 0.15 logMAR) in the failed and successful eyes groups, respectively (
P
< .001). Comparison of both groups showed that failed eyes had a statistically significantly higher grade of hyperopic laser corneal refractive surgery than successful eyes measured as mean sphere (+0.71 ± 3.10 diopters [D] [range: −7.75 to +6.00 D] vs −0.46 ± 3.70 D [range: −10.75 to +6.00 D],
P
< .01), spherical equivalent (+0.27 ± 3.10 D [range: −8.00 to +5.50 D] vs −0.97 ± 3.60 D [range: −12.50 to +4.90 D],
P
< .05), and percentage of hyperopic laser corneal refractive surgery (64% vs 43.5%,
P
< .05). Corneal aberration analysis showed that mean Z
4
0
values were significantly more negative in the failed eyes group than in the successful eyes group (+0.07 ± 0.40 mm [range: −0.82 to +0.65 mm] vs +0.18 ± 0.37 mm [range: −0.79 to +0.87 mm],
P
< .05). Laser corneal refractive surgery cylinder was distributed homogeneously between both groups, as well as coma and RMS-HOA, kappa angle, and CDVA after laser corneal refractive surgery that were not statistically significant.

CONCLUSIONS:

Surgeons should consider tomographic corneal spherical aberration after implantation of a trifocal IOL in eyes after keratorefractive surgery, particularly in eyes previously treated with hyperopic laser corneal refractive surgery, to prevent loss of lines of visual acuity after lensectomy.

[
J Refract Surg
. 2022:38(4):222–228.]
New applications related to hepatitis C model
Authors: Ahmed Nauman , Raza Ali , Akgül Ali , Iqbal Zafar , Rafiq Muhammad , Ahmad Muhammad Ozair , Jarad Fahd
Published: April 2022

The main idea of this study is to examine the dynamics of the viral disease, hepatitis C. To this end, the steady states of the hepatitis C virus model are described to investigate the local as well as global stability. It is proved by the standard results that the virus-free equilibrium state is locally asymptotically stable if the value of $ R_0 $ is taken less than unity. Similarly, the virus existing state is locally asymptotically stable if $ R_0 $ is chosen greater than unity. The Routh-Hurwitz criterion is applied to prove the local stability of the system. Further, the disease-free equilibrium state is globally asymptotically stable if $ R_0 < 1 $. The viral disease model is studied after reshaping the integer-order hepatitis C model into the fractal-fractional epidemic illustration. The proposed numerical method attains the fixed points of the model. This fact is described by the simulated graphs. In the end, the conclusion of the manuscript is furnished.
Mathematical analysis of a SIPC age-structured model of cervical cancer
Authors: Sari Eminugroho Ratna , Adi-Kusumo Fajar , Aryati Lina
Published: April 2022

Human Papillomavirus (HPV), which is the main causal factor of cervical cancer, infects normal cervical cells on the specific cell's age interval, i.e., between the $ G_1 $ to $ S $ phase of cell cycle. Hence, the spread of the viruses in cervical tissue not only depends on the time, but also the cell age. By this fact, we introduce a new model that shows the spread of HPV infections on the cervical tissue by considering the age of cells and the time. The model is a four dimensional system of the first order partial differential equations with time and age independent variables, where the cells population is divided into four sub-populations, i.e., susceptible cells, infected cells by HPV, precancerous cells, and cancer cells. There are two types of the steady state solution of the system, i.e., disease-free and cancerous steady state solutions, where the stability is determined by using Fatou's lemma and solving some integral equations. In this case, we use a non-standard method to calculate the basic reproduction number of the system. Lastly, we use numerical simulations to show the dynamics of the age-structured system.
The evolution of phases in FeNiCoCrCuBx high entropy alloys produced through microwave sintering and vacuum arc melting
Authors: Algan Şimşek İrem B. , Talaş Sükrü , Kurt Adem
Published: April 2022

Microwave heating and sintering techniques are applied to various production lines and material systems to improved their microstructure and mechanical properties in comparison to conventional means of production. These techniques also consume less power and energy compared to conventional heating methods. In this study, the production of high entropy alloys (HEA) by arc melting was carried out with specimens made from compacted and sintered elemental powders; the sintering process of alloy powders prior to remelting prevents certain problems such as porosity and uneven mixing that may occur during casting. We investigated the effects of conventional and microwave sintering processes prior to remelting and casting on structure and properties of FeNiCoCrCuBx HEA. Our results show that microwave sintering changes the size and shape of phases and microstructure of the alloy by affecting the liquid-phase separation mechanism. Three-point bending strength and ductility of alloys produced by microwave sintering were superior to conventional sintering.