bluuebunny/crossref_metadata_2025 huggingface dataset:
Efektivitas metode e-learning mata pelajaran Ekonomi di masa Covid-19 pada siswa SMA Muhammadiyah 2 Palangka Raya
Authors: Robiati Nunik , Lion Eddy , Rohaetin Sri
Published: November 2022

Penelitian kualitatif ini bertujuan (1) mendeskripsikan dan menganalisis hasil belajar siswa setelah menggunakan E-Learning, (2) mendeskripsikan dan menganalisis kekuatan dan kelemahan penerapan E-learning dalam kegiatan pembelajaran. Penelitian dilakukan  SMA Muhammadiyah 2 Palangka Raya, Kalimantan Tengah. Data dikumpulkan melalui observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan penerapan metode E-learning untuk pembelajaran ekonomi tidak efektif karena siswa tidak mampu menggunakan aplikasi E-learning. Selain itu, mereka tidak tertarik untuk belajar secara online melalui metode E-Learning. Terkait kekuatan implementasi E-learning, kegiatan pembelajaran dilengkapi dengan Handphone, laptop, WIFI dan kuota gratis. Selain itu, proses pembelajaran akan lebih fleksibel, sehingga siswa memiliki banyak waktu untuk menyelesaikan tugas dan mencari beberapa referensi di Google. E-learning juga memiliki beberapa kelemahan. Pada faktor internal, siswa sulit menangkap inti materi, mereka juga akan lebih pasif di kelas, dan siswa tidak termotivasi untuk mengikuti kegiatan pembelajaran. Sedangkan koneksi yang error, proses pembelajaran yang singkat, serta ketersediaan kuota dan handphone merupakan faktor eksternal dari kelemahan E-learning.
WATER EXCHANGE OF THE AZOVSEA ACCORDING TO THE DATA OF MEASUREMENTS IN 2021
Authors:   Federal Research Centre The Southern Scientific Centre of The Russian Academy of Sciences, Matishov G.G. , Grigorenko K.S. ,   Federal Research Centre The Southern Scientific Centre of The Russian Academy of Sciences
Published: November 2022

The paper presents the results of marine expeditionary research aboard the R/V Deneb of the Southern Scientific Centre of the RussianAcademy of Sciences in the Sea of Azov in November and December 2021. Investigations covered the areas of inflow of river (Taganrog, Temryuk bays), as well as the Black Sea (KerchStrait) waters. Measurements of the currents and parameters of the thermohaline structure were carried out onboard the vessel using an Aanderaa RCM 9 LW current recorder, additionally equipped with pressure, temperature, and conductivity sensors. The considered data expand the understanding of the nature of the sea water circulation. Measurements of the currents of the KerchStrait were carried out with an east-north-east wind at a speed of 8 m/s. Despite of the intense northern current (up to 28 cm/s), the salinity turned out to be lower than the values typical for the Sea of Azov.In the TemryukBay, cyclonic circulation cells 10–15 km in diameter were found.Measurements carried out in December 2021 twice recorded different phases of seiche fluctuations in the eastern part of the TaganrogBay of the Sea of Azov.Velocity maxima near the bottom were recorded in both cases.In the period from December 1 to December 4, the wind of the southern component was observed, on December 5 there was a change to the north-north-east wind, and the currents acquired a pronounced compensatory character.It has been established that the Black Sea current of the KerchStrait most often develops with the winds of the eastern component. The Ekman purely drift current from the southern and northern sides of the Kerch Strait is complicated by a number of factors, among which seiches can play a very important role.The closed shape of the basin limits the development of wind currents, compensatory countercurrents are formed. The nodal lines, under the influence of the Coriolis force, acquire a rotating character, masses of water, dissolved salts and suspensions are transferred. Seiches, depending on the phase, can both strengthen and weaken the currents of the KerchStrait, blocking water exchange. This function of the natural oscillations of the Sea of Azov significantly distinguishes the Sea of Azov from water bodies - analogs, where either density currents are formed or tides prevail.
4-H Water Wizards: Lessons Learned for Effective Afterschool Science Programming
Authors: Bird Marianne , Subramaniam Aarti
Published: November 2022

The University of California 4-H Youth Development Program created the 4-H Water Wizards project in response to two related issues: the need for high-quality science education programming in afterschool settings, and the desire to foster a citizenry that understands and can make informed decisions about water. In collaboration with afterschool program staff, Sacramento County 4-H implemented the 12-week water education project for children in grades four through six. We evaluated the program over four years (2012–2016) utilizing a pretest-posttest study design and evaluation surveys from participants and program staff. Our findings indicate positive outcomes both for program staff who delivered the project and for the children who participated in the program. Afterschool program staff gained competence in delivering hands-on and inquiry-based science programming. Fourth- and fifth-grade students demonstrated small but significant knowledge gain about water. Students also demonstrated increased awareness about water issues and water conservation behavior. We discuss our findings for both groups and share our insights for promising practices when collaborating with afterschool providers, especially relating to the importance and challenge of science education in afterschool settings.
Síndrome De Body Stalk: Relato De Caso
Authors: Leme Maria Júlia Pereira , Neto Attilio Brisighelli
Published: November 2022

Introdução: A síndrome de Body Stalk (SBS) é uma condição rara com uma frequência relatada de um caso para cada 31.000 gestações, e é caracterizada por malformações congênitas graves, principalmente toracosquise, abdominosquise, defeitos nos membros e exencefalia. Sua etiologia exata é desconhecida e nenhum fator teratogênico foi descrito até o momento. Além disso, relatos de recorrência familiar sugerem a possibilidade de origem genética da condição.

Objetivo: Relatar um caso de SBS atendido em nosso Serviço. Relato de caso: Tratou-se de uma paciente de 23 anos, sem comorbidades e primigesta, que foi encaminhada ao pré-natal de alto risco por conta de uma translucência nucal de 2,5 mm, observada por uma ultrassonografia (USG) morfológica realizada com idade gestacional (IG) de 11 semanas e 4 dias. Duas USGs posteriores demonstraram sinais sugestivos e crescentes de SBS. A paciente entrou espontaneamente em trabalho de parto com IG de 33 semanas e 6 dias, com o feto em óbito desde seu desprendimento cefálico. Após o nascimento, foram constatadas múltiplas malformações confirmando a SBS. A mãe recebeu os cuidados puerperais, tendo alta hospitalar no dia seguinte.

Conclusão: A SBS é uma malformação rara e letal, justificando relatos de casos que contribuem para a educação médica continuada em Ginecologia e Obstetrícia. Como visto no caso aqui relatado, a USG é importante na hipótese de diagnóstico precoce da SBS, permitindo que a gestante escolha se deseja interromper ou não sua gravidez. Também existem evidências de que a ressonância magnética fetal poderia fornecer bases para um diagnóstico pré-natal da síndrome durante o começo do segundo semestre gestacional, bem como a capacidade diagnóstica de USGs para fetos com IG de 11 e 12 semanas.
Formal total synthesis of macarpine via a Au(I)-catalyzed 6-endo-dig cycloisomerization strategy
Authors: Fu Jiayue , Li Bingbing , Zhou Zefang , Cheng Maosheng , Yang Lu , Liu Yongxiang
Published: November 2022

The formal total synthesis of macarpine was accomplished by the construction of a naphthol intermediate in Ishikawa’s synthetic route with two different synthetic routes. The convergent synthetic strategies feature the utilization of Au(I)-catalyzed cycloisomerizations of a 1,5-enyne and alkynyl ketone substrates, which were prepared by Sonogashira coupling reactions.
INFLUENCE OF DEFORMATION ON PHOTOGRAPHY OF A p-n-JUNCTION UNDER THE INFLUENCE OF LIGHT AND IN A SUPERHIGH-FREQUENCY FIELD
Authors:   SRI OF PHYSICS OF SEMICONDUCTORS AND MICROELECTRONICS AT NUUZ named after MIRZO ULUGBEK, Гулямов Г. , Дадамирзаев М.Г. , Косимова М.О. , Уктамова М.К.
Published: November 2022

INFLUENCE OF DEFORMATION ON PHOTOGRAPHY OF A p-n-JUNCTION UNDER THE INFLUENCE OF LIGHT AND IN A SUPERHIGH-FREQUENCY FIELD
THIN FILMS OF SOLID SOLUTION CdXZn1XS COMPOUND GROWN IN A HYDROGEN FLOW
Authors:   SRI OF PHYSICS OF SEMICONDUCTORS AND MICROELECTRONICS AT NUUZ named after MIRZO ULUGBEK, Утамурадова Ш.Б. , Музафарова С.А. , Ачилов А.С. , Файзуллаев К.М.
Published: November 2022

THIN FILMS OF SOLID SOLUTION CdXZn1XS COMPOUND GROWN IN A HYDROGEN FLOW
INJECTION CURRENTS P-SI–N-SI1-XSNX–N+-SI1-XSNX (0X0.04)-STRUCTURES
Authors:   SRI OF PHYSICS OF SEMICONDUCTORS AND MICROELECTRONICS AT NUUZ named after MIRZO ULUGBEK, Зайнабидинов С.З. , Мадаминов Х.М. , Икромов А.Ш.
Published: November 2022

INJECTION CURRENTS P-SI–N-SI1-XSNX–N+-SI1-XSNX (0X0.04)-STRUCTURES
THEORETICAL INVESTIGATION OF OPTICAL PROPERTIES OF SEMICONDUCTOR SPHERICAL QUANTUM DOTS
Authors:   SRI OF PHYSICS OF SEMICONDUCTORS AND MICROELECTRONICS AT NUUZ named after MIRZO ULUGBEK, Корабоев К.А. , Якубов Д. Т. , Курбонов Х.Х. , Сапаев У.К.
Published: November 2022

THEORETICAL INVESTIGATION OF OPTICAL PROPERTIES OF SEMICONDUCTOR SPHERICAL QUANTUM DOTS
Comparative analysis of composition method of text centered text and text centered text and exploring the meaning constructive strategy of text producers: Mobile media environment and focusing on the text acceptance context according to platform characteristics
Authors:   Korean Association for Literacy, Joo Minjae
Published: November 2022

This study analyzes the characteristics of text-oriented text and image-oriented text composition methods and the differences in consumption patterns according to the main text composition styles based on the characteristics of mobile media. In this study, two blog platforms and one video platform were selected to compare the semantic construction methods of text-oriented text and image-oriented text. The subject and content of ‘specific analysis target’ were limited to two categories, ‘travel’ and ‘movie review’. ‘Travel’ and ‘movie review’ are traditionally the most talked about topics on blogs. As YouTube was recognized as a representative platform for one-person media, the number of channels dealing with travel vlogs as the main content increased significantly, and movie reviews were considered the most preferred cultural content by the public, and there are many related channels. The three analysis driftwoods extracted through continuous comparison of data analysis for the study subjects were categorized and repeated comparative analysis was performed. Among the analysis nomads, in the ‘text composition method’, character-oriented texts had very different formats depending on the characteristics of the blog platform. Vlogs, which are video-oriented texts, have a very high degree of multiplicity of forms compared to blogs. The vlog narrative has a clear overlap between mimetic narration and diegetic narration. In the ‘text consumption method’, the nature of the interface differs depending on the platform, and this has a certain effect on text consumption. Also, in the case of blogs, superficial reading and in-depth reading were selectively performed according to the characteristics of the platform. In the image-centered text, the possibility of affective and resonant reading was high through mimetic narration narrative and social object. In the ‘communication format’, as the PC-based blog entered the mobile era, the degree of interaction decreased, and in YouTube, interaction such as comments between producers and audiences was active.
A Compilation of Pragmatic Organizational Tools & Practices for Employees Delight
Authors: Hussainy Syed Sadullah , Wahaibi Mahmood Ali Al
Published: November 2022

The main aim of this study is to compile the pragmatic organizational tools and practices can be used by organizations to achieve employees’ delight. This study compiled thirty pragmatic tools and practices which include expectation clarity, employee’s empowerment, open communication climate, competitive compensation, and stock option etc., to name a few from literature and discussed how they can be handy for achieving employee delight. For this purpose, various theoretical and empirical studies, which specifically addressed the topic of the research, were examined to identify the suitable organizational practices and tools. The complied practices and tools will help theorist and researchers to extend literature on organizational tools and practices and will help managers in designing their policies and practices and they should all find this article to be worthwhile reading. Researcher observed that more analytical and empirical studies need to be conducted in different business and industrial setup to understand the varying needs of employees and to equip organizations with the knowledge necessary to improve their capability to achieve employee delight. Researchers concluded that implementing all of them together may not be feasible for organizations, but carefully combining right mix of tools as per the suitability to meet employees’ needs can help organizations in achieving employees’ delight.
Efficacy of the third dose of COVID-19 vaccine: a systematic review and meta-analysis
Authors:   Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Guangdong province,China, Xu Junjie , Liu Jiaye , Lan Xinquan , Song Moxin , Zhang Liangyuan , Zhang Jiaqi
Published: November 2022

Review question / Objective: To investigate the immune response and related clinical outcomes of healthy adults who received coronavirus vaccine booster compared with those who did not receive the vaccine booster. Condition being studied: The COVID-19 pandemic, which has spread since 2019, has created a huge disease and economic burden on the world. A large number of clinical trials have verified the effectiveness of COVID-19 vaccine. Previous studies have found that the serum conversion rate and antibody level of those vaccinated after the first two doses of COVID-19 vaccine continue to decrease, and the efficacy of the vaccine will decrease over time after the first two doses. Therefore, in order to maintain the protective efficacy of the vaccine, The need for a vaccine booster shot to achieve the expected goal of long-term effective prevention of the novel coronavirus has become a focus of discussion around the world.
An Analysis of Fetishism in Hegel's Philosophy of Religion
Authors: Pan Deng
Published: November 2022

In Hegel's system of religious philosophy, fetishism is considered religion’s starting point, representing the beginning of the objectification of self-consciousness. Fetish can be subdivided into direct and indirect witchcraft. Hegel analyzes in detail the African religions representing plain witchcraft and the Chinese religions of the Qing dynasty representing indirect witchcraft. Hegel revealed the structure of the emperor's sacrifice to heaven in Chinese indirect mysticism in the Qing Dynasty and used the "religion of degree" to explain the moral connotation of "Tian" and "Dao.” On the one hand, Hegel's fetishism represents a very integrated reflection on the significance of "fetish worship" in the history of philosophical thought. On the other hand, because it is confined within the methodological framework of Hegel's spiritual, intelligent system, it has the boundaries of an innovative design with an intense color of "Eurocentrism.”
The Broad Prospects of the Cooperation in the Filial Piety of Family between Confucianism and Christianity
Authors: Zhang Xianglong
Published: November 2022

This is a dialogue between Paulos Huang (Professor at Shanghai University) and Xianglong Zhang on the cooperation in the Filial Piety of Family between Confucianism and Christianity. It includes the following issues: How has Professor Lin HE influenced Zhang to study philosophy? Zhang’s study on Phenomenology and Daoism in USA. How has Zhang changed his study focus from Phenomenology into Chinese traditions after he returned to China from USA? The cooperation potentiality between Confucianism and Christianity on the filial piety of family. How has Amish in Pennsylvania influenced Zhang to promote similar Confucian special zone in China? The aim of education to study so as to become a real human being in Confucianism and Finland.
Perbaikan Proses Produksi dan Pemasaran Melalui Penerapan Mesin Produksi, Pembuatan Label Kemasan, Materi dan Media Promosi Digital untuk Kelompok Masyarakat Nenas Berduri (PONARI)
Authors: Wahyuni Retno Tri , Susianti Elva , Sari Rika Perdana
Published: November 2022

The Pineapple Community Group (PONARI) is one of those recommended by the Kampar Integrated Business Service Center (PLUT) to provide assistance. The Covid-19 pandemic condition affected PONARI's business, where Pokmas experienced a drastic decrease in income. The occurrence of the pandemic caused many government agency activities or events, wedding parties, which usually place orders for pineapple processed products, to not be carried out. Marketing efforts to other places such as entrusting them to gift shops are very limited because the processed products do not yet have a PIRT permit, even though the demand from gift shops is actually quite a lot. Thus, there is a need for assistance for PONARI so that they can rise from adversity due to the pandemic. The form of assistance for PONARI carried out in this community service program is the application of production machines, improvement of packaging labels, promotional materials and media. The results of community service activities are in the form of two production machines that have been implemented and have a positive impact on the production process. Other results are in the form of more modern and attractive packaging labels, promotional materials with attractive taglines and promotional media to support digital marketing.
Structural materials, fire and protection
Authors: Findik Fehim
Published: November 2022

Any material that can be used in the construction of a building is called building material. Concrete, reinforced concrete, steel, aluminum, wood, tile, plaster, etc., known as building materials. Fire is a chemical event that occurs as a result of the combination of matter with heat and oxygen. Fire protection is the study and practice of reducing the undesirable effects of destructive fires. It includes the behavior, suppression and investigation of fire. In this study, building materials such as steel, concrete and wood were examined, and then the protection of building materials using fire resistant materials and fire systems was emphasized.
KARAKTERISTIK DAN TERAPI PADA PASIEN KUSTA DI RUMAH SAKIT TUGUREJO KOTA SEMARANG
Authors: Meki Pranata  , Atma Rulin Dewi Nugrahaini  , Nurul Fajariah
Published: November 2022

Kusta merupakan penyakit menular yang dapat mengganggu aktifitas secara individu dalam interaksi sosial sehingga membutuhkan terapi pengobatan. Pemberian monoterapi dan kombinasi mempengaruhi kelangsungan hidup pasien. Penelitian ini bertujuan untuk mengetahui karakteristik penderita kusta dan terapi obat yang dikonsumsi. Penelitian dilakukan secara restrospektif dengan metode deskriptif analitik, selama 1 tahun di mulai bulan April 2018 - April 2019 (n=138). Pengumpulan data meliputi karakteristik pasien yang terdiri dari usia, jenis kelamin, agama, domisili dan pekerjaan. Karakteristik klinis pasien terdiri dari tipe kusta, jenis penyakit, dan terapi obat. Analisis data menggunakan analisis univariate (analisis deskriptif) untuk mengetahui persentase jumlah pasien pada penelitian dan analisis dengan menggunakan chi-square test untuk melihat hubungan karakteristik dengan terapi obat. Hasil penelitian menunjukkan bahwa karakteristik tipe kusta memiliki hubungan yang signifikan terhadap jumlah pemberian obat pada pasien dengan nilai p<0,05.
Hybrid Nanofluid on Mixed Convection Flow Past a Stretching Sheet with Irregular Heat Source/Sink
Authors: ‘Afifah Filza Ahmad Rubaa’i  , Noraihan  , Lim Yeou Jiann  , Sharidan Shafie  , Anati Ali
Published: November 2022

This research studies the behaviour of hybrid nanofluid on mixed convection flow over a stretching sheet by considering the effect of non-uniform heat source/sink. The chosen base fluid is water with two different nanoparticles which are copper and aluminium oxide. The governing partial differential equations are reduced into ordinary differential equations using a similarity transformation technique. The resulting governing system then solved numerically using Keller-box method. The influence of space- and temperature-dependents of non-uniform heat source and sink parameters as well as the unsteadiness parameter is presented graphically. The current study shows that, the space- and temperature dependents of non-uniform heat source and sink significantly raises the fluid’s temperature. Comparative study also shows that hybrid nanofluid has higher temperature and heat transfer coefficient than single nanofluid and conventional fluid. It can also be concluded that, the enhancement of heat transfer rate can be achieved by reducing the parameter of space- and temperature dependents of non-uniform heat source and sink.
The Exegetical Tradition of the Buddhāvataṃsaka-sūtra
Authors: Hamar Imre
Published: November 2022

The Buddhāvataṃsaka-sūtra, which served as an ideological foundation for the establishment and gradual development of the Huayan school, is one of the most influential Mahāyāna sūtras in East Asian Buddhism. This article shows how the exegetical tradition that focused on the study of this scripture was started by the scholar monks of the Dilun school, who highly valued the Vasubandhu’s commentary on the Daśabhūmika-sūtra chapter of the Buddhāvataṃsaka-sūtra, and was completed during the Tang dynasty by the masters of the Buddhist exegesis, who later were venerated as patriarchs of the Huayan school.
The Hungarian Nippon Society
Authors: Farkas Ildikó Mária
Published: November 2022

The Hungarian Nippon Society was founded in 1924, with the aim of building and developing Hungarian–Japanese relations, popularising Japan and Japanese culture in Hungary, and encouraging research on Japan. The society organised public lectures on Japan and Japanese culture and art exhibitions and social events connected to Japanese culture, and through these activities the society was the most important organiser and promoter of Japanese culture and art in Hungary between the two world wars. This society was the first (and for a long time, until the foundation of the Hungarian Japanese Friendship Society in 1987, the only) association in Hungary to focus solely on Japan and Japanese culture. This study summarises the most important issues related to the Nippon Society, with the aim of placing its history and activity in the broader historic and ideological context of its time. Examining the history of the Hungarian Nippon Society can provide us a more nuanced picture about how and why Japan’s image changed during the first half of the 20th century in a Central European country that had different images and concepts about the East and thus a different approach than Western European societies had. Moreover, this case of a primarily cultural association in a politically difficult era can show how different cultural and intellectual thoughts and theories can be affected by identity issues and by contemporary politics, political thinking, and international situations.
A Tale of Two Potalakas: Intercultural Relations Between China and Korea Examined Through Maritime Buddhism
Authors: Vörös Erika Erzsébet
Published: November 2022

Several places around the world have been identified as Potalaka, which was originally thought to be located in South India. The most well-known among these places are Mount Putuo in China and Naksan Temple in Korea. Geographically speaking, Korea is connected to China by sea, which acted as a source of cultural and material resources for a long time. For this reason, throughout history the sea became the stage of cultural exchanges between these two regions. The sea was the channel through which faith in Avalokiteśvara entered Korea from China, and where the traditions of Buddhism merged with beliefs in indigenous sea gods. The present paper focuses on the cultural exchanges between Korea and China, with special emphasis on the role that the sea played in this process examined through the faith in Potalaka.
The Early Solar System Abundance of Iron-60: New Constraints from Chondritic Silicates
Authors: Kodolányi János , Hoppe Peter , Vollmer Christian , Berndt Jasper , Müller Maren
Published: November 2022

The abundance of iron-60 in the early solar system is important for planetary evolution models, and has been hotly debated. To put further constraints on the initial 60Fe/56Fe ratio of the solar system, here we present new iron-nickel isotope data, measured in situ by NanoSIMS, for 14 silicate chondrules from three carbonaceous and three unequilibrated ordinary chondrites. NanoSIMS measurements were performed at high spatial resolution (200–300 nm primary beam diameter), to avoid inclusion of unwanted phases in the analysis volume. The average initial 60Fe/56Fe ratios that can be estimated from our pooled chondrule data are 2.1 (±1.3) × 10−7 and 0.8 (±1.0) × 10−7 for carbonaceous and ordinary chondrites, respectively (1σ uncertainties). The estimated average initial 60Fe/56Fe ratio of all analyzed chondrules is 1.0 (±0.7) × 10−7. These results are inconsistent with initial 60Fe/56Fe ratios >2.4 × 10−7 (2σ upper limit of our entire data set) reported in the literature for some chondrule silicates based on in situ isotope data, and agree better with our previously published in situ data on chondritic troilites (0.10 ± 0.15 × 10−7), as well as with 60Fe/56Fe ratios estimated from isotope data of bulk meteorites and chondrules (0.10–0.75 × 10−7). Our isotope data hint at a possible difference between the initial 60Fe/56Fe ratios of the early solar system’s two major isotope reservoirs, with the carbonaceous chondritic reservoir having higher iron-60 abundance than the non-carbonaceous reservoir. Nevertheless, in light of similar hints in the literature, this possibility deserves further investigation.
High-energy Photon Opacity in the Twisted Magnetospheres of Magnetars
Authors: Hu Kun , Baring Matthew G. , Harding Alice K. , Wadiasingh Zorawar
Published: November 2022

Magnetars are neutron stars characterized by strong surface magnetic fields generally exceeding the quantum critical value of 44.1 TG. High-energy photons propagating in their magnetospheres can be attenuated by QED processes like photon splitting and magnetic pair creation. In this paper, we compute the opacities due to photon splitting and pair creation by photons emitted anywhere in the magnetosphere of a magnetar. Axisymmetric, twisted dipole field configurations embedded in the Schwarzschild metric are treated. The paper computes the maximum energies for photon transparency that permit propagation to infinity in curved spacetime. Special emphasis is given to cases where photons are generated along magnetic field loops and/or in polar regions; these cases directly relate to resonant inverse Compton scattering models for the hard X-ray emission from magnetars and Comptonized soft gamma-ray emission from giant flares. We find that increases in magnetospheric twists raise or lower photon opacities, depending on both the emission locale and the competition between field-line straightening and field strength enhancement. Consequently, given the implicit spectral transparency of hard X-ray bursts and persistent “tail” emission of magnetars, photon splitting considerations constrain their emission region locales and the twist angle of the magnetosphere; these constraints can be probed by future soft gamma-ray telescopes such as COSI and AMEGO. The inclusion of twists generally increases the opaque volume of pair creation by photons above its threshold, except when photons are emitted in polar regions and approximately parallel to the field.
A Multiscale Picture of the Magnetic Field and Gravity from a Large-scale Filamentary Envelope to Core-accreting Dust Lanes in the High-mass Star-forming Region W51
Authors: Koch Patrick M. , Tang Ya-Wen , Ho Paul T. P. , Hsieh Pei-Ying , Wang Jia-Wei , Yen Hsi-Wei , Duarte-Cabral Ana , Peretto Nicolas , Su Yu-Nung
Published: November 2022

We present 230 GHz continuum polarization observations with the Atacama Large Millimeter/Submillimeter Array at a resolution of 0.″1 (∼540 au) in the high-mass star-forming regions W51 e2 and e8. These observations resolve a network of core-connecting dust lanes, marking a departure from earlier coarser, more spherical continuum structures. At the same time, the cores do not appear to fragment further. Polarized dust emission is clearly detected. The inferred magnetic field orientations are prevailingly parallel to dust lanes. This key structural feature is analyzed together with the local gravitational vector field. The direction of local gravity is found to typically align with dust lanes. With these findings, we derive a stability criterion that defines a maximum magnetic field strength that can be overcome by an observed magnetic field–gravity configuration. Equivalently, this defines a minimum field strength that can stabilize dust lanes against a radial collapse. We find that the detected dust lanes in W51 e2 and e8 are stable, hence possibly making them a fundamental component in the accretion onto central sources, providing support for massive star formation models without the need of large accretion disks. When comparing to coarser resolutions, covering the scales of envelope, global, and local collapse, we find recurring similarities in the magnetic field structures and their corresponding gravitational vector fields. These self-similar structures point at a multiscale collapse-within-collapse scenario until finally the scale of core-accreting dust lanes is reached where gravity is entraining the magnetic field and aligning it with the dust lanes.
Orbital Decay of Double White Dwarfs: Beyond Gravitational-wave Radiation Effects
Authors: Carvalho G. A. , Anjos R. C. dos , Coelho J. G. , Lobato R. V. , Malheiro M. , Marinho R. M. , Rodriguez J. F. , Rueda J. A. , Ruffini R.
Published: November 2022

The traditional description of the orbital evolution of compact-object binaries, like double white dwarfs (DWDs), assumes that the system is driven only by gravitational-wave (GW) radiation. However, the high magnetic fields with intensities of up to gigagausses measured in WDs alert a potential role of the electromagnetic (EM) emission in the evolution of DWDs. We evaluate the orbital dynamics of DWDs under the effects of GW radiation, tidal synchronization, and EM emission by a unipolar inductor generated by the magnetic primary and the relative motion of the nonmagnetic secondary. We show that the EM emission can affect the orbital dynamics for magnetic fields larger than megagausses. We applied the model to two known DWDs, SDSS J0651+2844 and ZTF J1539+5027, for which the GW radiation alone does not fully account for the measured orbital decay rate. We obtain upper limits to the primary’s magnetic field strength, over which the EM emission causes an orbital decay faster than observed. The contribution of tidal locking and the EM emission is comparable, and together they can contribute up to 20% to the measured orbital decay rate. We show that the gravitational waveform for a DWD modeled as purely driven by GWs and including tidal interactions and EM emission can have large relative dephasing detectable in the mHz regime of frequencies relevant for space-based detectors like LISA. Therefore, including physics besides GW radiation in the waveform templates is essential to calibrate the GW detectors using known sources, e.g., ZTF J1539+5027, and to infer binary parameters.
Dynamical Masses of the Primary Be Star and Secondary sdB Star in the Single-lined Binary κ Dra (B6 IIIe)
Authors: Klement Robert , Baade Dietrich , Rivinius Thomas , Gies Douglas R. , Wang Luqian , Labadie-Bartz Jonathan , dos Santos Pedro Ticiani , Monnier John D. , Carciofi Alex C. , Mérand Antoine , Anugu Narsireddy , Schaefer Gail H. , Bouquin Jean-Baptiste Le , Davies Claire L. , Ennis Jacob , Gardner Tyler , Kraus Stefan , Setterholm Benjamin R. , Labdon Aaron
Published: November 2022

Because many classical Be stars may owe their nature to mass and angular-momentum transfer in a close binary, the present masses, temperatures, and radii of their components are of high interest for comparison to stellar evolution models. Object κ Dra is a 61.5 day single-lined binary with a B6 IIIe primary. With the CHARA Array instruments MIRC/MIRC-X and MYSTIC, we detected the secondary at (approximately photospheric) flux ratios of 1.49% ± 0.10% and 1.63% ± 0.09% in the H and K band, respectively. From a large and diverse optical spectroscopic database, only the radial velocity curve of the Be star could be extracted. However, employing the parallaxes from Hipparcos and Gaia, which agree within their nominal 1σ errors, we could derive the total mass and found component masses of 3.65 ± 0.48 and 0.426 ± 0.043 M
⊙ for the Be star and the companion, respectively. Previous cross-correlation of the observed FUV spectrum with O-type subdwarf (sdO) spectral model templates had not detected a companion belonging to the hot sdO population known from ∼20 earlier-type Be stars. Guided by our full 3D orbital solution, we found a strong cross-correlation signal for a stripped subdwarf B-type companion (FUV flux ratio of 2.3% ± 0.5%), enabling the first firm characterization of such a star and making κ Dra the first mid- to late-type Be star with a directly observed subdwarf companion.
Inconspicuous Solar Polar Coronal X-Ray Jets as the Source of Conspicuous Hinode/EUV Imaging Spectrometer Doppler Outflows
Authors: Sterling Alphonse C. , Schwanitz Conrad , Harra Louise K. , Raouafi Nour E. , Panesar Navdeep K. , Moore Ronald L.
Published: November 2022

We examine in greater detail five events previously identified as being sources of strong transient coronal outflows in a solar polar region in Hinode/Extreme Ultraviolet (EUV) Imaging Spectrometer (EIS) Doppler data. Although relatively compact or faint and inconspicuous in Hinode/X-ray Telescope (XRT) soft-X-ray (SXR) images and in Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) EUV images, we find that all of these events are consistent with being faint coronal X-ray jets. The evidence for this is that the events result from eruption of minifilaments of projected sizes spanning 5000–14,000 km and with erupting velocities spanning 19–46 km s−1, which are in the range of values observed in cases of confirmed X-ray polar coronal hole jets. In SXR images, and in some EUV images, all five events show base brightenings, and faint indications of a jet spire that (in four of five cases where determinable) moves away from the brightest base brightening; these properties are common to more obvious X-ray jets. For a comparatively low-latitude event, the minifilament erupts from near (≲few arcsec) a location of near-eruption-time opposite-polarity magnetic-flux-patch convergence, which again is consistent with many observed coronal jets. Thus, although too faint to be identified as jets a priori, otherwise all five events are identical to typical coronal jets. This suggests that jets may be more numerous than recognized in previous studies, and might contribute substantially to solar wind outflow, and to the population of magnetic switchbacks observed in Parker Solar Probe (PSP) data.
Topological Modes in Stellar Oscillations
Authors: Leclerc Armand , Laibe Guillaume , Delplace Pierre , Venaille Antoine , Perez Nicolas
Published: November 2022

Stellar oscillations can be of topological origin. We reveal this deep and so far hidden property of stars by establishing a novel parallel between stars and topological insulators. We construct an Hermitian problem to derive the expression of the stellar acoustic–buoyant frequency S of nonradial adiabatic pulsations. A topological analysis then connects the changes of sign of the acoustic–buoyant frequency to the existence of Lamb-like waves within the star. These topological modes cross the frequency gap and behave as gravity modes at low harmonic degree ℓ and as pressure modes at high ℓ. S is found to change sign at least once in the bulk of most stellar objects, making topological modes ubiquitous across the Hertzsprung–Russell diagram. Some topological modes are also expected to be trapped in regions where the internal structure varies strongly locally.
The Nonpotentiality of Steady-state Coronal Magnetic Field Derived with Time-relaxation Magnetohydrodynamics Simulations Using Helioseismic and Magnetic Imager Three-component Magnetic Field Data
Authors: Hayashi Keiji , Wu Chin-Chun , Liou Kan
Published: November 2022

The steady states of the coronal magnetic field obtained with the magnetohydrodynamic (MHD) time-relaxation simulation model are examined. Our electric-field-driven model can introduce the three components of the solar surface magnetic field data maps as the boundary values of an MHD simulation, without violating the divergence-free condition of the magnetic field. The magnetic field in the simulated steady-state solar corona exhibits substantial nonpotentiality in the closed-field streamers. A few choices are allowed in our model, such as the criteria for determining whether or not the horizontal components at the weak-field region are included. The initial magnetic field configuration can be arbitrarily determined. In this work, we examined the differences between the steady states obtained with the information on the horizontal components and with several choices of the simulation setting, and compared the new steady states with those obtained without using the horizontal magnetic field components. We found that nonpotential magnetic structures in the derived steady states well correspond to the observed solar filament structures during a selected period of Carrington Rotation 2106. The difference in the steady state with different boundary treatments is found to be large. The difference caused by the initial magnetic configuration is found to be small.
The Thermonuclear X-Ray Bursts of 4U 1730–22
Authors: Bult Peter , Mancuso Giulio C. , Strohmayer Tod E. , Albayati Arianna C. , Altamirano Diego , Buisson Douglas J. K. , Chenevez Jérôme , Guillot Sebastien , Güver Tolga , Iwakiri Wataru , Jaisawal Gaurava K. , Ng Mason , Sanna Andrea , Swank Jean H.
Published: November 2022

We present observations of the historic transient 4U 1730–22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022. We observed 4U 173–22 extensively with NICER, detecting a total of 17 thermonuclear X-ray bursts. From a spectroscopic analysis, we find that these X-ray bursts can be divided into a group of bright and weak bursts. All bright bursts showed 1–2 s rise times and a photospheric radius expansion phase, while the weak bursts showed a slower ∼5 s rise with a tendency for concave shapes. From the photospheric radius expansion flux, we estimate the source distance at 6.9 ± 0.2 kpc. We consider various interpretations for our observations and suggest that they may be explained if accreted material is burning stably at the stellar equator and unstable ignition occurs at a range of higher latitudes.
Histopathological Analysis and Comparison between Experimentally Fabricated Hydroxyapatite from Nile Tilapia Bone and Mineral Trioxide Aggregate as A Direct Pulp Capping Agents on Dog Pulp (In Vivo Study)
Authors: Essa Mona , Tohamy Safaa
Published: November 2022

AIM: The aim of this study was to study response of exposed dental dog pulp to the HP from Nile Tilapia bone and MTA on induction of reparative dentin formation and to inflammatory response in pulp tissue.

MATERIALS AND METHODS: Four male mongrel dogs 1 year old with total of 20 teeth from each dog were selected and divided into two groups that each group has 40 teeth according to the material used as pulp capping agents. The maxillary teeth and the mandibular teeth for each dog were capped by both materials alternatively; the cavities were then sealed by glass-ionomer cement. Each group divided in two groups according to 2-time intervals (4 weeks and 8 weeks). Animals were sacrificed and teeth were collected for histopathological analysis.

RESULTS: Specimens capped by fish bone powder after 4 weeks, which showed non-significantly higher of inflammatory cell scores than that capped by MTA. It showed thin (score 1) to moderate (score 2) thickness of dentine bridge formation, mostly a-tubular dentin, in all specimens. After 8 weeks, significant decrease in inflammatory cell infiltration scores for both groups were found, but it was significant in case of fish bone powder. Furthermore, dentine bridge became more significant for both materials with slight histological change in the group capped by fish bone powder.

CONCLUSIONS: HA from Nile Tilapia bone could be considered as a direct pulp capping material. Furthermore, more studies needed on the fabrication of this material to give better result in shape and the pattern of reparative dentine formed.
Microbiological Aspects Concerning the Etiology of Acute Odontogenic Inflammatory Diseases in the Soft Tissues of the Head and Neck Region
Authors: Faustova Mariia , Nazarchuk Oleksandr , Loban’ Galina , Avetikov David , Ananieva Maiia , Chumak Yuliia , Havryliev Viktor
Published: November 2022

Odontogenic purulent inflammatory diseases (OPID) make up about 20% of cases in the structure of general surgical pathology and are among the frequent diseases of the maxillofacial region (MFR) with a high (10-40%) mortality rate. Insufficient information about the source state of acute odontogenic inflammation of the peri-mandibular soft tissues significantly reduces the effectiveness of diagnostic measures of OPID in MFR, as evidenced by almost 50% of the diagnostic error rate.
Statistically, OPID in soft-tissue of MFR most often occur due to dissemination of pathogens of the necrotized pulp, periodontal pockets in periodontitis or pericoronitis during the difficult eruption of retained teeth. Previously, the quantitative dominance (about 70%) of Staphylococcus spp. among the microorganisms isolated from the odontogenic foci of inflammation was determined. However, in recent years, with the expansion of microbiological diagnostic capabilities, the presence of non-fermenting Gram-negative bacteria and anaerobes with a significant proportional proportion of the total microbiota of OPID in soft tissue of MFR has been increasingly indicated.
Recently, there has been a rapid acquisition of resistance of pathogens of odontogenic purulent inflammatory diseases of the maxillofacial region to various groups of antibiotics, which leads to ineffectiveness of their treatment and prompts the revision of existing protocols and treatment regimens in surgical dentistry
Renal Preservation Increases Survival Rate in Critically Ill COVID-19 Patients
Authors: George Yohanes , Lolobali Marilaeta Cindryani
Published: November 2022

BACKGROUND: COVID-19 infection tends to cause organ dysfunction and disrupts immunity due to cytokine storm. In addition to pulmonary distress and myocarditis due to the aforementioned cytokine storm, another prominent clinical feature of this disease is kidney failure. Maintaining good kidney function, normal creatinine levels, removing cytokine, avoiding fluid overload, and implementing higher level additional measures such as early (renal replacement therapy) are expected to increase survival in critically ill COVID-19 patients.

AIM: We aimed to analyze whether renal preservation increases survival rate in critically ill COVID-19 patients

METHODS: An observational analytic study was conducted in 53 critically ill COVID-19 patients treated in the ICU (Intensive Care Unit). All patients were treated with either standard therapy with additional renal-focused fluid evacuation and cytokine removal method such as CRRT (continuous RRT) or cytokine removal only with plasmapheresis.

RESULTS: investigation through Cox regression analysis revealed that only cumulative balance an creatinine have a significant relationship with mortality (p < 0.05).

CONCLUSION: Maintenance of cumulative balance and serum creatinine will increase survival rates.
In memoriam: Fidel Fernández-Rubio (13 Dec 1928–20 Apr 2022)
Authors: García-Barros Enrique , Montesinos José Luis Viejo , Munguira Miguel L.
Published: November 2022

No abstract
Une médecine mutualiste de transformation sociale au service du mouvement ouvrier à l’épreuve du tournant « lucratif » de la mutualité
Authors: Carini-Belloni Benoît
Published: November 2022

L’article traite de la transformation de la « médecine mutualiste » exercée dans les centres de santé d’une union mutualiste départementale des Bouches-du-Rhône sous l’effet croisé, dans la tourmente de la libéralisation, de l’injonction à la rentabilité et de la séparation des missions assurantielles et sociales des mutuelles de santé. D’inspiration cégétiste et communiste, cette mutualité ouvrière a créé, dès la fin des années 1950, un réseau de centres de santé dans tout le département à l’initiative de médecins d’orientation marxiste, engagés dans le combat social à la recherche de nouveaux modes d’exercice médical, et de militants syndicaux cgt , alliés à des représentants mutualistes et à des municipalités de gauche souhaitant investir le terrain du droit à la santé et à sa protection. À partir des années 1980, face au recul de la Sécurité sociale et sous l’effet de la réglementation européenne de la concurrence, les impératifs gestionnaires et l’alignement sur la rhétorique entrepreneuriale de la mutualité ont progressivement modifié l’éthique solidaire, la vocation sociale et l’orientation préventive des centres de santé. Cette évolution profonde a poussé la mutualité, fragilisée par une baisse de ses adhérents consécutive à la montée du chômage et de la précarité, à adopter un mode de gouvernance plus opaque et moins démocratique débouchant sur une crise interne en 2012, dont l’élément catalyseur a été le passage à la rémunération à l’acte des médecins des centres.
Politiques de recherche en cancérologie : les personnes âgées, des patients invisibles ?
Authors: Tijou-Traoré Annick , Jacques Béatrice
Published: November 2022

Si l’État souhaite favoriser le développement de l’innovation thérapeutique et son accès à tous les patients dans le domaine de la cancérologie, il n’en demeure pas moins que les personnes âgées en sont toujours peu bénéficiaires. Ces patients sont sous-représentés dans les essais cliniques. Or, on sait qu’ils représentent la population la plus vulnérable à la survenue d’un cancer. Cette situation paradoxale soulève la question des inégalités de santé selon l’âge. Cet article propose de questionner cette problématique médicale et de mettre en lumière les logiques qui fondent son existence, du point de vue de 12 acteurs institutionnels et associatifs. La manière dont ils pensent l’accès aux soins et à la recherche médicale s’inscrit dans la complexité à définir et à désigner la population des personnes âgées. Les causes qu’ils lui attribuent puisent leur fondement dans des dimensions d’ordre social, politique et médical. Celles-ci traduisent l’intrication entre la représentation de la personne âgée, l’inertie des politiques publiques et des laboratoires pharmaceutiques et l’absence d’activisme thérapeutique par et/ou pour les personnes âgées.