bluuebunny/crossref_metadata_2025 huggingface dataset:
SUMBER PENDANAAN, TEKNOLOGI INFORMASI, DAN KINERJA FINANSIAL PADA USAHA KECIL DAN MENENGAH PRA DAN SELAMA PANDEMI COVID-19
Authors: Hidayat Riskin , Sari Dian Anita
Published: August 2022

This research test the mediating role of information technology on the influence of funding sources on the performance of SMEs before-during the COVID 19 pandemic. The sample of the study conducted is Coffee SMEs in Rembang Regency, which produces produces “Lelet Coffee”. In this study, all members of the population were sampled as 50 samples, but only 48 samples could be processed, because two samples were damage. The data analysis technique used path analysis with PLS. Test results show that funding sources had a significant positive impact on the performance of Lelet Coffee SMEs both pre-pandemic and during the Covid 19 pandemic. Similarly, when it is mediated through information technology, it can be seen that funding sources before and during the Covid 19 pandemic have a significant indirect impact on the performance of Coffee SMEs pre and during the covid-19 pandemic. In addition, the study shows that information technology has a significant positive impact on the performance of Coffee SMEs. This means that digital technology will play a very important role in driving the impact of funding sources on the financial performance of Rembang Regency's Coffee SMEs.Kata Kunci :  funding sources, information technology, SME financial performance, covid-19 pandemic
Waste Management and Environmental Protection for Community Sustainable Development in Nigeria
Authors: Uzoagu Ifeoma Felicia , Eheazu Caroline L.
Published: August 2022

Waste, environmental protection and community sustainability are products of development, and most daily activities of human beings generate waste. The negative consequences of economic development have long been observed by eminent economic theorists, such as Smith, Marx, Malthus, Ricardo and Mill (Clarin, 2018). There are some indicators that show that most countries have failed to achieve sustainable development, and some countries are far from it. There has also been a growing concern about the environmental limit to growth and development as well as the imperative of environmental quality and management. As a result, this paper firstly conceptualized the following terms-“Waste”,“Waste Management”,“Environment”, “Environmental Sustainability”, Community, Community Sustainability, and Sustainable Development. The paper further discussed the composition of waste materials in Nigeria. It again examined various international and national measures or activities taken in relation to the concept of community sustainable development. The scholars in addition discussed the rationale for environmental protection and the negative impacts of waste on Nigerian environment. Furthermore, several measures taken internationally and nationally to ameliorate the negative impacts of wastes on environment were concisely discussed.
Lexical sophistication measures and writing proficiency: The case of Indonesian learners of Japanese
Authors: Li Wenchao
Published: August 2022

The present study tests two measures of lexical sophistication in writing proficiency (moving-average morphological richness and moving-average mean size of paradigm for testing the lexical diversity) and mean word length for testing writing form (plain, humble, honorification). The findings suggest that the three metrics work reliably. Regarding lexical diversity, moving-average of morphological richness (MAMR) and moving-average mean size of paradigm (MAMSP) of Indonesian Japanese learners-written texts are close to native Japanese-written data. Lexical complexity measured by word length by Indonesian Japanese learners is characterised by slightly less richness than native Japanese data but remains very close. Word length-frequency relationship in the Indonesian-written data presents outstanding fitting results to nine models, including the Poisson Model families and Binomial Model families, with 0.9918 as the lowest and 0.9987 as the highest determination coefficient R2. It is hoped that this study’s outcome may help develop an automatic evaluation of the writing proficiency of agglutinative languages with diverse writing forms.
Word length distribution of Japanese dialects
Authors: Li Wenchao
Published: August 2022

This study applies a mathematical linguistic approach to explore word length distribution of Japanese dialects to cluster dialects at a lexical level. Data were extracted from spoken recordings of native speakers from 47 areas. The findings revealed that the further south the area was, the longer the mean word length (MWL) became. In majority of dialects, MWL ranges from one to nine. The Saga dialect has the longest MWL (3.26). Further analysis of the MWL-frequency relationship via the Altmann-fitter reveals that MWL-frequency of all dialects fit more than 30 distribution models, including the binomial and Poisson families.
CONSTITUTIONAL AND LEGAL ASPECTS OF THE ORGANIZATION OF PUBLIC AUTHORITY IN THE RUSSIAN FEDERATION
Authors: Бурмистрова Ю.Б. , Микерин А.М.
Published: August 2022

Введение: в статье рассматриваются особенности организации публичной власти, эффективного разделения власти по вертикали и горизонтали, проблемы обеспечения легитимности системы публичной власти. Обзор литературы включает нормативные правовые акты федерального уровня, научную литературу, а также материалы периодических изданий. Материалы и методы: нормативной правовой основой исследования стали отдельные положения Конституции Российской Федерации, Федерального конституционного закона «О Правительстве Российской Федерации», Послание Президента Российской Федерации Федеральному Собранию в январе 2020 года. Теоретико-методологическую основу исследования составили работы ученых – специалистов в области конституционного права, исторической науки, выдержки из публичных выступлений глав государства в различные годы. Методологическую основу исследования составили системный подход, общедиалектический метод научного познания, а также сравнительно-правовой и историко-правовой методы исследования. Результаты исследования: результатом исследования выступило выявление трех обособленных этапов становления новой модели публичного управлении в России, обоснование реализации принципа разделения властей и особенностей легитимации публичной власти. Обсуждение и заключения: авторы делают выводы о существенном изменении конституционного строя России в соответствии с мировыми стандартами в сфере гарантий прав и свобод человека и гражданина, принципов организации и функционирования системы органов государственной власти и местного самоуправления, а также о незавершенности процесса формирования эффективно функционирующей системы публичной власти в России, что во многом определятся динамикой политической практики, новизной и необходимостью их разностороннего теоретического осмысления.
CRIMINAL POLICY OF RUSSIA UNDER INFORMATION GLOBALIZATION
Authors: Мартыненко Н.Э.
Published: August 2022

Введение: на примере ст. 207 Уголовного кодекса Российской Федерации (далее – УК РФ) рассматриваются проблемы реализации уголовно-правовой политики России по борьбе с преступлениями, совершаемыми с использованием информационно-телекоммуникационной сети «Интернет». Материалы и методы: в ходе исследования использовались статистические данные о количестве зарегистрированных преступлений, федеральные законы, направленные на криминализацию общественно опасных деяний, совершаемых с использованием информационно-телекоммуникационной сети «Интернет». Применялись общенаучные и частнонаучные методы исследования, позволившие обобщить и проанализировать материал по теме исследования. Результаты исследования: сделан вывод, что проводимая государством уголовно-правовая политика в сфере борьбы с преступлениями, совершаемыми с использованием информационно-телекоммуникационной сети Интернет (на примере ст. 207 УК РФ), не в полной мере позволяет решить задачу предупреждения преступлений, закрепленную в ст. 2 УК РФ. Включение в отдельные статьи УК РФ в качестве квалифицирующего признака положений об их совершении с использованием информационно-телекоммуникационной сети «Интернет» не останавливает рост количества зарегистрированных преступлений. Обсуждение и заключения: обосновывается вывод о необходимости комплексного использования возможностей уголовной политики (под уголовной политикой понимается проводимая государством политика борьбы с преступностью), включающей не только уголовно-правовое, но и правовое, ресурсное, кадровое, методическое и иные виды обеспечения борьбы с преступлениями, совершаемыми с использованием информационно-телекоммуникационной сети «Интернет».
THEFT USING ELECTRONIC MEANS OF PAYMENTS IN THE LIGHT OF CHANGES ESTABLISHED BY THE DECISION OF THE SUPREME COURT OF THE RUSSIAN FEDERATION DATED JUNE, 29 2021: CERTAIN ISSUES
Authors: Шарафиева Г.И.
Published: August 2022

Введение: в статье рассматриваются вопросы, связанные с особенностями квалификации преступлений по п. «г» ч. 3 ст. 158 Уголовного кодекса Российской Федерации (УК РФ), и разграничением кражи, совершенной с банковского счета, а равно в отношении электронных денежных средств, и смежного состава мошенничества с использованием электронных средств платежа (ст. 159.3 УК РФ). Материалы и методы: в статье использованы положения действующего законодательства, статистические данные, материалы судебной практики, научные публикации по рассматриваемой теме. Автором был использован комплекс общенаучных и частнонаучных методов исследования (сравнительный анализ, синтез, дедукция, формально-юридический, статистический методы). Результаты исследования: проведенное исследование позволило выделить два основных подхода к квалификации хищений с использованием электронных средств платежа. На основе анализа положений доктрины уголовного права и материалов правоприменительной практики автором дана оценка изменениям, внесенным постановлением Пленума Верховного Суда Российской Федерации 29 июня 2021 года № 22, а также сформулированы предложения по совершенствованию правоприменительной практики по ст. 159.3 УК РФ. Обсуждение и заключения: сформулированы выводы о необходимости дальнейшего совершенствования законодательства в рассматриваемой сфере.
IMPLEMENTATION OF WORLDSKILLS COMPETENCIES IN THE EDUCATIONAL PROCESS OF DEPARTMENTAL EDUCATIONAL INSTITUTIONS OF THE MINISTRY OF INTERNAL AFFAIRS OF RUSSIA
Authors: Сахапов И.Р. , Мастрова Я.А.
Published: August 2022

Введение: в статье рассматривается положительный опыт проведения чемпионатов по стандартам WorldSkills по компетенции T11 Law Enforcement (Police Officer). Материалы и методы: в статье использованы положения действующих государственных образовательных стандартов, а также данные авторских социологических исследований, проведенных на территории Республики Татарстан. В работе применялась совокупность общенаучных и частнонаучных методов: описательный, метод логического осмысления, абстрагирование и обобщение, анализ, синтез, системный подход, метод социологического анкетирования, метод социологического интервьюирования. Обзор литературы: особое внимание уделено работам Б.С. Алешина, Л.В. Семеновой, Ю.В. Ушановой и других исследователей, рассматривающих возможность внедрения стандартов WorldSkills в образовательный процесс образовательных организаций высшего образования. Результаты исследования: рассматривается возможность внедрения стандартов WorldSkills в образовательный процесс ведомственных образовательных организаций МВД России. Обсуждение и заключения: авторы статьи приходят к выводу, согласно которому технология WorldSkills является одной из наиболее перспективных форм обучения, что обосновывается её повышенной практикоориентированностью. Предлагается проведение ежегодных локальных соревнований по компетенции T11 Law Еnforcement (Police Officer) в образовательных организациях МВД России, а также разработка и внедрение новой компетенции Open-Source Intelligence (Cyberpolice), в рамках которой конкурсанты будут соревноваться в поиске и аккумулировании данных по открытым источникам информации.
Security issues of Vehicular Ad Hoc Networks (VANET): A Systematic Review
Authors: Asra Sahabdeen Aysha
Published: August 2022

Vehicular ad hoc networks (VANETs) are a subset of mobile ad hoc networks (MANETs) that refer to a group of connected cars. The various networking layers in common Internet protocol stack topologies are linked to security vulnerabilities in VANETs. A security breach in a VANET is typically serious and harmful. Also Current VANET security standards handle the bulk of the security issues that vehicle networks confront. This paper presents VANET’s different types of security attacks in a systematic review approach. The information was gathered by a systematic examination of existing research articles. Furthermore, the study's shortcomings were the dataset's size and the absence of quality characteristics.
A Bibliometric Analysis: Computer Science Research From Indonesia
Authors: Supriyadi Edi
Published: August 2022

Bibliometric indicators originally counted ways to measure research quality. This endured for decades following the term's introduction. The purpose of this research is to carry out a bibliometric analysis of the present status and trends in computer science articles written by Indonesian authors that are included in the Scopus database. Bibliographic indicators were analyzed using SciVal (www.scival.com). Elsevier constructed SciVal using Collexis' semantic technology after buying it in 2010. SciVal evaluates scientific performance using Scopus and tracks funding. Between the years 1998 and 2022, the total number of indexed papers in Scopus that discuss the advancement of research outcomes in computer science has greatly expanded. This rise reached its highest point in 2019, with 121 publications. Santoso is the most prolific Indonesian researcher when it comes to releasing research results on computer science in Indonesia. The University of Indonesia has been the most helpful sponsor in terms of sponsoring computer science research.
Ayna Nöronların Aktivitesi ve Çeşitli Hastalıklar Üzerine Etkisi
Authors: ERTÜRK Çağıl , MUTUŞ Rıfat
Published: August 2022

Ayna nöronların nöroanatomik yapılanması ve işlevselliğinin araştırılması son yıllarda oldukça artmıştır. Özellikle nörolojik ve ortopedik hasta gruplarında uygulanan tedavi yaklaşımlarında pasif uygulamalar yerine hastanın katılımının olduğu aktif uygulamalar tercih edilmektedir. Bunun temel sebeplerinden birisi ayna nöronları ve birincil motor korteksi dâhil ederek tedaviyi kalıcı hale getirmeyi amaçlamaktır. Ayna nöronların fonksiyonel ve disfonksiyonel durumlarını ortaya koymak, tedavi seanslarında hastaların semptomlarını anlamada çok büyük katkı sağlamaktadır. Özellikle ayna nöronları aktive ederek planlanan ayna terapisi ile hastalar nöronal bağlantılarını yeniden yapılandırarak nöroplastik aktivite sağlarlar ve böylece iyileşme süreçlerine katkıda bulunmuş olurlar. Literatür taramalarında ayna nöronların aktivasyonlarının yer aldığı hastalıkların yapısal özellikleri birbirinden farklı olsa da ortak özellik olarak ayna nöronların aktive edilerek tedaviye katkı sağladığını söylemek mümkündür. Yapılan tedavi uygulamalarında, ilgili fonksiyonel hareketin hasta tarafından fiziksel olarak yapılmadığı durumlarda dahi bilişsel olarak hareketin yapıldığının imgelenmesi, ayna nöronları aktive ederek hastanın iyilik halini arttırdığı belirlenmiştir.
Meme Kanserinin Etiyopatogenezinde Bazı Selenoproteinlerin Rolü
Authors: ÖĞÜT Selim , DEĞİRMENCİOĞLU Sevgin , BAHTİYAR Nurten , CİNEMRE Fatma Behice , AYDEMİR Birsen , KARAÇETİN Didem , HACIOSMANOĞLU Ebru , KURAL Alev , GÜNEŞ Mehmet Emin , BEKTAŞ Muhammet
Published: August 2022

Amaç: Meme kanseri, kadınlarda kanser kaynaklı ölümlerde akciğer kanserinden sonra ikinci sırada yer alır. Çeşitli çalışmalarda, selenoproteinlerin kanserogenezin bazı evrelerini baskıladığı ve kanser hücrelerinin çoğalma hızını azalttığı gösterilmiştir. Ancak bu mekanizmalar tam olarak açıklanamamıştır. Kanser tedavisinde radyoterapi, kemoterapiyle birlikte en çok tercih edilen tedavi yöntemlerindendir. Çalışmanın amacı, radyoterapi alan meme kanserli hastaların tedavi öncesi ve sonrası selenoprotein düzeylerindeki değişiklikleri değerlendirerek hastalığın etiyopatogenezine olası etkilerini incelemektir.Yöntem: Çalışmamıza meme kanseri teşhisi konmuş, radyoterapi öncesi ve radyoterapi sonrası örnekleri alınan 35 kadın hasta ile herhangi bir ilaç tedavisi almayan 25 sağlıklı kadın gönüllü dahil edildi. Hasta ve sağlıklı kontrol gruplarını oluşturan bireylerden kan örnekleri alındı. Serum örneklerinde selenoprotein K (Sel-K), selenoprotein W1 (Sel-W1) ve selenoprotein P (Sel-P) düzeyleri ELISA (Enzyme-Linked Immunosorbent Assay) yöntemi ile ölçüldü. İstatistiksel analiz, Wilcoxon ve Mann-Whitney U testleri kullanılarak yapıldı. Hesaplamalar için Statistical Package for the Social Sciences – SPSS 21.0 for Windows (SPSS Inc, Chicago, IL, ABD) kullanıldı. p<0.05, istatistiksel olarak anlamlı bir farkı belirtmek için kabul edildi.Bulgular: Serum Sel-K düzeyleri tedavi öncesi ve kontrol grubu karşılaştırıldığında, tedavi öncesi grupta anlamlı olarak düşük bulundu. Sel- P düzeyleri hem tedavi öncesi hem de tedavi sonrasında kontrol grubu ile karşılaştırıldığında her iki grupta da kontrol grubuna göre düşük bulundu. Sel-W1 düzeylerinde gruplar arasında herhangi bir anlamlılık bulunmadı.Sonuç: Meme kanserinde bazı selenoproteinlerin hastalığın etiyopatogenezinde önemli bir rolü olmakla birlikte daha fazla örneklem grubu ve ileri çalışmalar ile hastalığın progresyonu ve selenoprotein düzeyleri arasındaki ilişkinin araştırılmasına ihtiyaç duyulmaktadır.
SORT1 rs599839 Polimorfizminin Lipit Profillerine Olan Etkisi: Tek Şehir Deneyimi
Authors: AKADAM-TEKER Ayşegül Başak , TEKER Erhan
Published: August 2022

Amaç: VPS10p ailesinin bir reseptörü olan Sortilin-1(SORT1)’i kodlayan SORT1 geni 1p13.3’de lokalizedir. SORT1 genom çapında ilişkilendirme çalışmalarında (GWAS) hepatik lipit metabolizması ve düşük dansiteli lipoprotein-kolesterol (LDL-K) seviyeleri ile olan ilişkisinden dolayı koroner kalp hastalığı (KKH) oluşturma riski ile ilişkilendirilmiştir. SORT1 gen bölgesi üzerindeki çeşitli varyasyonlar lipit profilleri üzerinde farklı etkilere neden olmaktadır. Bizim bu çalışmadaki amacımız; Giresun ilinde SORT1 rs599839 gen varyantlarının KKH gelişimi ve lipit parametreleri üzerine bir etkisinin olup olmadığını belirlemektir.Yöntem: Bu vaka-kontrol çalışmasında 396 kişiden oluşan erkek çalışma grubunda (209 KKH /187 kontrol) SORT1 rs599839 polimorfizmi için TaqMan 5’ Allelik Ayrım Testi ile genotipleme yapıldı.Bulgular: Hasta ve kontrol grupları arasında SORT1 rs599839 genotip dağılımları açısından istatistiksel olarak fark bulunmamaktadır (p=0.81). G allel varlığı hem hasta hem de kontrol grubunda daha düşük Total-Kolesterol (TK) (sırasıyla; p=0.005,p=0.032) ve LDL-K (sırasıyla; p=0.005,p=0.040) seviyelerine sebep olurken daha yüksek yüksek dansiteli lipoprotein-kolesterol (HDL-K) (sırasıyla; p=0.001,p=0.006) seviyeleri gözlenmiştir.Sonuç: Bulgularımız SORT1 rs599839 polimorfizminin direk olarak KKH patogenezine katkısının olmadığı yönündedir. Ancak, minör G allel varlığının TK ve LDL-K seviyelerini düşürürken, HDL-K seviyelerinde yükselmeye sebep olduğu görülmüştür. Bu durum minör G allel varlığının lipit profili üzerine olumlu etki gösterdiği ve KKH’a karşı koruyucu olduğu izlenimini vermiştir.
An African Perspective of Drama: The Case of the Homowo Festival among the People of Teshie, Greater Accra Region – Ghana
Authors: Bonku Lucy Korkoi , Yeboah Philomena Ama Okyeso , Sanka Confidence Gbolo , Arthur Peter
Published: August 2022

There have been literary scholars such as Ruth Finnegan who have argued and asserted that drama is not a literary genre that is well developed in Africa. Although this assertion has been refuted and disproved by other literary scholars such as Euchero, Enekwe and Owomoyela, people still struggle with exactly what drama in Africa entails and is about. Whether the dramatic elements and traditions found in the performances are simply not remnants of the encounter with the western world as popularly postulated or they are actually traditions deeply rooted in the culture and identity as Africans. The paper used a qualitative research method that is essentially rooted in ethnography and historical facts that surround the Homowo festival. Also, with Afrocentric theory and Structural Theory of Myth, this paper has critically examined the Homowo festival of the people of Teshie in the Greater Accra Region of Ghana as an African drama and established that the various performances during the festival festivities have the features of drama and not only that, but they practically and vividly show how the performances are rooted in history, myth, rituals and the belief of the people in the community; thus, exhibiting a clear perspective of African drama. This study further contributes to the existing knowledge on oral literature and the treatment of festivals in Africa as a literary genre. It presents the Homowo festival as a fully fledged cultural practice that takes into cognizance essential dramatic elements embedded in its performance.

Keywords: Festival, African Drama, Myth, Homowo
Overview of the Remote Sensing Observations from PSP Solar Encounter 10 with Perihelion at 13.3 R
⊙
Authors: Howard Russell A. , Stenborg Guillermo , Vourlidas Angelos , Gallagher Brendan M. , Linton Mark G. , Hess Phillip , Rich Nathan B. , Liewer Paulett C.
Published: August 2022

The closest perihelion pass of Parker Solar Probe (PSP), so far, occurred between 2021 November 16 and 26 and reached ∼13.29 R
☉ from Sun center. This pass resulted in very unique observations of the solar corona by the Wide-field Instrument for Solar PRobe (WISPR). WISPR observed at least 10 coronal mass ejections (CMEs), some of which were so close that the structures appear distorted. All of the CMEs appeared to have a magnetic flux rope (MFR) structure, and most were oriented such that the view was along the axis orientation, revealing very complex interiors. Two CMEs had a small MFR develop in the interior, with a bright circular boundary surrounding a very dark interior. Trailing the larger CMEs were substantial outflows of small blobs and flux-rope-like structures within striated ribbons, lasting for many hours. When the heliospheric plasma sheet was inclined, as it was during the days around perihelion on 2021 November 21, the outflow was over a very wide latitude range. One CME was overtaken by a faster one, with a resultant compression of the rear of the leading CME and an unusual expansion in the trailing CME. The small Thomson surface creates brightness variations of structures as they pass through the field of view. In addition to this dynamic activity, a brightness band from excess dust along the orbit of asteroid/comet 3200 Phaethon is also seen for several days.
On the Nature of the Mass-gap Object in the GW190814 Event
Authors: Lopes Luiz L. , Menezes Debora P.
Published: August 2022

In this work, we conduct an extensive study of the conditions that allow the mass-gap object in the GW190814 event to be faced as a degenerate star instead of a black hole. We begin by revisiting some parameterizations of quantum hadrodynamics and then study under which conditions hyperons are present in such a massive star. Afterward, using a vector MIT-based model, we study whether self-bound quark stars, satisfying the Bodmer–Witten conjecture, fulfill all the observational constraints. Finally, we study hybrid stars within a Maxwell construction and check for what values of the bag, as well as the vector interaction, a quark core star with only nucleons, and with nucleons admixed with hyperons can reach at least 2.50 M
⊙. We conclude that, depending on the choice of parameters, none of the possibilities can be completely ruled out, i.e., the mass-gap object can be a hadronic (either nucleonic or hyperonic), a quark, or a hybrid star, although some cases are more probable than others.
Two-dimensional Configuration and Temporal Evolution of Spark Discharges in Pulsars
Authors: Basu Rahul , Melikidze George I. , Mitra Dipanjan
Published: August 2022

We report on our investigation of the evolution of a system of spark discharges in the inner acceleration region (IAR) above the pulsar polar cap. The surface of the polar cap is heated to temperatures of around 106 K and forms a partially screened gap (PSG), due to thermionic emission of positively charged ions from the stellar surface. The spark lags behind corotation speed during their lifetimes due to variable E × B drift. In a PSG, spark discharges arise in locations where the surface temperatures go below the critical level (T

i
) for ions to freely flow from the surface. The spark commences due to the large drop in potential developing along the magnetic field lines in these lower temperature regions and subsequently back-streaming particles heat the surface to T

i
. Regulation of the temperature requires the polar cap to be tightly filled with sparks and a continuous presence of sparks is required around its boundary since no heating is possible from the closed field line region. We estimate the time evolution of the spark system in the IAR, which shows a gradual shift in the spark formation along two distinct directions resembling clockwise and anticlockwise motions in two halves of the polar cap. Due to the differential shift of the spark pattern in the two halves, a central spark develops representing the core emission. The temporal evolution of the spark process was simulated for different orientations of a non-dipolar polar cap and reproduced the diverse observational features associated with subpulse drifting.
Investigation of the Broadband Emission of the Gamma-Ray Binary HESS J0632+057 Using an Intrabinary Shock Model
Authors: Kim Jinyoung , An Hongjun , Mori Kaya
Published: August 2022

We investigated a wealth of X-ray and gamma-ray spectral energy distribution (SED) and multiband light-curve (LC) data of the gamma-ray binary HESS J0632+057 using a phenomenological intrabinary shock (IBS) model. Our baseline model assumes that the IBS is formed by colliding winds from a putative pulsar and its Be companion and that particles accelerated in the IBS emit broadband radiation via synchrotron (SY) and inverse Compton upscattering (ICS) processes. Adopting the latest orbital solution and system geometry, we reproduced the global X-ray and TeV LC features, two broad bumps at ϕ ∼ 0.3 and ∼0.7, with the SY and ICS model components. We found that these TeV LC peaks originate from ICS emission caused by the enhanced seed photon density near periastron and superior conjunction or Doppler-beamed emission of bulk-accelerated particles in the IBS at inferior conjunction. While our IBS model successfully explained most of the observed SED and LC data, we found that phase-resolved SED data in the TeV band require an additional component associated with ICS emission from preshock particles (produced by the pulsar wind). This finding indicates a possibility of delineating the IBS emission components and determining the bulk Lorentz factors of the pulsar wind at certain orbital phases.
Mid-infrared and Maser Flux Variability Correlation in Massive Young Stellar Object G036.70+00.09
Authors: Uchiyama Mizuho , Ichikawa Kohei , Sugiyama Koichiro , Tanabe Yoshihiro , Yonekura Yoshinori
Published: August 2022

We present the discovery of the simultaneous flux variation of a massive young stellar object (MYSO) G036.70+00.09 (G036.70) both in the maser emission and mid-infrared (MIR; λ = 3–5 μm) bands. Using the ALLWISE and NEOWISE archival databases that cover a long time span of approximately 10 yr with a cadence of 6 months, we confirm that G036.70 indicates a stochastic year-long MIR variability with no signs of a WISE band color change of W1 (3.4 μm) −W2 (4.6 μm). Cross-matching the MIR data set with the high-cadence 6.7 GHz class II methanol maser flux using the Hitachi 32 m radio telescope that discovered its periodicity in the methanol maser of 53.0–53.2 days, we also determine the flux correlations between the two bands at two different timescales, year-long and day-long, both of which have never been reported in MYSOs, except when they are in the accretion burst phase. The results of our study support the scenario that a class II methanol maser is pumped up by infrared emission from accreting disks of MYSOs. We also discuss the possible origins of MIR and maser variability. To explain the two observed phenomena, a stochastic year-long MIR variability with no signs of significant color change and maser-MIR variability correlation or a change in mass accretion rate and line-of-sight extinction because of the nonaxisymmetric dust density distribution in a rotating accretion disk are possible origins. Observations through spectroscopic monitoring of accretion-related emission lines are essential for determining the origin of the observed variability in G036.70.
First Peek with JWST/NIRCam Wide-field Slitless Spectroscopy: Serendipitous Discovery of a Strong [O iii]/Hα Emitter at z = 6.11
Authors: Sun Fengwu , Egami Eiichi , Pirzkal Nor , Rieke Marcia , Boyer Martha , Correnti Matteo , Gennaro Mario , Girard Julien , Greene Thomas P. , Kelly Doug , Koekemoer Anton M. , Leisenring Jarron , Misselt Karl , Nikolov Nikolay , Roellig Thomas L. , Stansberry John , Williams Christina C. , Willmer Christopher N. A. ,   (Members of the JWST/NIRCam Commissioning Team)
Published: August 2022

We report the serendipitous discovery of an [O iii] λ
λ4959/5007 and Hα line emitter in the Epoch of Reionization (EoR) with the James Webb Space Telescope (JWST) commissioning data taken in the NIRCam wide-field slitless spectroscopy (WFSS) mode. Located ∼55″ away from the flux calibrator P330-E, this galaxy exhibits bright [O iii] λ
λ4959/5007 and Hα lines detected at 3.7σ, 9.9σ, and 5.7σ, respectively, with a spectroscopic redshift of z = 6.112 ± 0.001. The total Hβ+[O iii] equivalent width is 664 ± 98 Å (454 ± 78 Å from the [O iii] λ5007 line). This provides direct spectroscopic evidence for the presence of strong rest-frame optical lines (Hβ+[O iii] and Hα) in EoR galaxies as inferred previously from the analyses of the Spitzer/IRAC spectral energy distributions (SEDs). Two spatial and velocity components are identified in this source, possibly indicating that this system is undergoing a major merger, which might have triggered the ongoing starburst with strong nebular emission lines over a timescale of ∼2 Myr, as our SED modeling suggests. The tentative detection of He ii
λ4686 line (1.9σ), if real, may indicate the existence of very young and metal-poor star-forming regions with a hard UV radiation field. Finally, this discovery demonstrates the power and readiness of the JWST/NIRCam WFSS mode, and marks the beginning of a new era for extragalactic astronomy, in which EoR galaxies can be routinely discovered via blind slitless spectroscopy through the detection of rest-frame optical emission lines.
On the Hydrosphere Stability of TESS Targets: Applications to 700 d, 256 b, and 203 b
Authors: Bonney Paul , Kennefick Julia
Published: August 2022

A main determinant of the habitability of exoplanets is the presence of stable liquid surface water. In an era of abundant possible targets, the potential to find a habitable world remains a driving force in prioritization. We present here a data-forward method to investigate the likelihood of a stable hydrosphere on the timescales of the formation of life, 1 Gyr, and beyond. As our primary application, we use this method to examine the potential hydrospheres of TESS objects of interest 700 d, 256 b (LHS 1140 b), and 203 b. We first present our selection criteria, which are based on an implementation of the Earth Similarity Index, as well as the results of an initial investigation into the desiccation of the targets, which reveals that TOI 203 b is almost certainly desiccated based on TESS observations. We then describe the characterization of the remaining targets and their host stars from 2MASS, Gaia, and TESS data and the derivation of sampled probability distributions for their parameters. Following this, we describe our process of simulating the desiccation of the targets’ hydrospheres using the Virtual Planet Simulator, VPlanet, with inputs directly linked to the previously derived probability distributions. We find that 50.86% of the likely cases for TOI 700 d are desiccated, and no modeled cases for TOI 256 b are without water. In addition, we calculate the remaining water inventory for the targets, the percentage of cases that are continuing to lose water, and the rate at which these cases are losing water.
Computational simulations of the effects of social distancing interventions on the COVID-19 pandemic
Authors: Khoshnaw Sarbaz H. A. , Mohammed Azhi Sabir
Published: August 2022

The spread of the COVID-19 pandemic has been considered as a global issue. Based on the reported cases and clinical data, there are still required international efforts and more preventative measures to control the pandemic more effectively. Physical contact between individuals plays an essential role in spreading the coronavirus more widely. Mathematical models with computational simulations are effective tools to study and discuss this virus and minimize its impact on society. These tools help to determine more relevant factors that influence the spread of the virus. In this work, we developed two computational tools by using the R package and Python to simulate the COVID-19 transmissions. Additionally, some computational simulations were investigated that provide critical questions about global control strategies and further interventions. Accordingly, there are some computational model results and control strategies. First, we identify the model critical factors that helps us to understand the key transmission elements. Model transmissions can significantly be changed for primary tracing with delay to isolation. Second, some types of interventions, including case isolation, no intervention, quarantine contacts and quarantine contacts together with contacts of contacts are analyzed and discussed. The results show that quarantining contacts is the best way of intervening to minimize the spread of the virus. Finally, the basic reproduction number R0 is another important factor which provides a great role in understanding the transmission of the pandemic. Interestingly, the current computational simulations help us to pay more attention to critical model transmissions and minimize their impact on spreading this disease. They also help for further interventions and control strategies.
Status and contamination assessment of heavy metals pollution in coastal sediments, southern Kuwait
Authors: Nour Hamdy E. , Ramadan Fatma , Shammari Nouf El , Tawfik Mohamed
Published: August 2022

To assess the heavy metals concentration in the coastal sediments of the southern Kuwait coast, Fe, Mn, Cu, Pb, Ni, Co, Cd and Cr were measured by inductively coupled plasma mass spectroscopy. Whereas, the south of Kuwait coast is characterized by the presence of tourist resorts, and commercial and oil exports harbors. Moreover, environmental indicators were used to help in evaluating the degree and the intensity of pollutants in these sediments. Geoaccumulation index (Igeo) revealed that the sediments of hard all Hamara and Al-Khiran coasts are moderately polluted by Cu, while Ras Al-Zour and Ras Al-Jula'ia coasts are moderately polluted by Cd. Moreover, the enrichment factor (EF) indicated that the sediments of Hadd Al-Hamara coast are severely enriched with Ni, Cr and Pb, while the Al-Khiran coast is moderate severely enriched with the same metals. Ras Al-Zour and Ras Al-Jula'ia coasts are severely enriched with Ni and very severely enriched with Pb. Simultaneously, all studied sites are extremely severely enriched with Cu and Cd. These results were confirmed by the results of the contamination factor (CF) and the soil pollution index (SPI) indicated that Hadd Al-Hamara and Al-Khiran coasts are highly contaminated with Cu and Cd, while Ras Al-Zour and Ras Al-Jula'ia coasts are highly contaminated with Cd. Generally, the pollution load index showed that the sediments of all studied sites are no heavy metal pollution (PLI < 1). Pollutants might be originated from commercial wastes and construction activities.
Vibration analysis and multi-state feedback control of maglev vehicle-guideway coupling system
Authors: Zhang Lingling
Published: August 2022

Due to the existence of elastic modes in the track, the suspension system of maglev train is prone to vehicle-track coupling vibration, which has become an important problem restricting the further development of maglev train technology. In view of the limitation of the existing rigid track suspension model, this paper establishes an electromagnet-controller-elastic track coupling system model. And then, the nonlinear maglev system is transformed into a linear system by Hartman-Grobman theorem. Since the elastic deformation of the track is difficult to measure, a tracking differentiator is presented to filter out the interference of the displacement signal and obtain the differential signal of the gap between the electromagnet and the track. In order to suppress the vehicle-track coupling vibration, a four-state feedback control method is proposed by introducing the gap differential feedback signal. According to the Hurwitz algebraic criterion, the stability of four-state feedback control system is compared with that of three-state feedback control system. Simulation results show that, the four-state feedback control method can provide the elastic deformation information of the track, and can suppress the coupling vibration between the vehicle and the elastic track effectively.
Stability estimates for singularly perturbed Fisher's equation using element-free Galerkin algorithm
Authors: Kaur Jagbir , Sangwan Vivek
Published: August 2022

In the present article, a mesh-free technique has been presented to study the behavior of nonlinear singularly perturbed Fisher's problem, which exhibits the traveling wave propagation phenomenon. Some narrow regions adjacent to the left and right lateral boundary may possess rapid variations when the singular perturbation parameter $ \epsilon\rightarrow 0 $, which are not captured nicely by the traditional numerical schemes. In the current work, a robust numerical strategy is proposed, which comprises the implicit Crank-Nicolson scheme to discretize the time derivative term and the element-free Galerkin (EFG) scheme to discretize the spatial derivative terms with nodes densely distributed in the boundary layer regions. The stability of the semi-discrete scheme has been analyzed, and the rate of convergence is shown to be $ \mathcal{O}(\tau^{2}) $. The nonlinear nature of the considered problem has been tackled by employing the quasilinearization process, and its convergence rate has been discussed. Some numerical experiments have been performed to verify the computational uniformity and robustness of the suggested method, rate of convergence as well $ L_{\infty} $ errors have been presented, which depicts the effectiveness of the proposed method.
Family with sequence similarity 153 member B as a potential prognostic biomarker of gastric cancer
Authors: Yang Yuan , Ye Yuwei , Liu Min , Zheng Ya , Wu Guozhi , Chen Zhaofeng , Wang Yuping , Guo Qinghong , Ji Rui , Zhou Yongning
Published: August 2022

Gastric cancer (GC) is one of the most common digestive tumors in Northwest China. Previous sequencing analysis revealed that family with sequence similarity 153 member B (FAM153B) might be the primary driver gene of GC. In this study, we aim to explore the potential roles of FAM153B in GC. Microarray data were firstly obtained from public databases with the aim to evaluate the genetic expression of FAM153B between GC and normal tissues. The results were verified in immunohistochemistry (IHC). We also performed the co-expression network analysis and enrichment analysis to identify underlying mechanisms. A correlation analysis of FAM153B expression and immune infiltration was performed then. Furthermore, two GC cell lines were used to evaluate the effect of FAM153B on gastric cell proliferation by employing MTT and Edu assays. Our findings suggest that FAM153B is downregulated in tumoral tissue, and positively associated with unfavorable survival. The enrichment pathways of FAM153B were regulation of signaling receptor activity, DNA replication, cell cycle transition, chromosomal regulation, and so on. Besides, from the perspective of bioinformatics, the protein expression level of FAM153B is related to the degree of immune cell infiltration. In vitro, overexpression of FAM153B inhibit the proliferation of two cell lines. In summary, this study demonstrates that FAM153B might serve as an effective prognostic and therapeutic biomarker in GC.
Magnetic Nanoparticle-Based Biosensors for the Sensitive and Selective Detection of Urine Glucose
Authors: Ahmed Tousief Irshad , Aruldoss Reegan , Pant Bhasker , Kulandhaisamy Indhumathi , Raffik R. , Sonawane Ganesh Bhaskarrao
Published: August 2022

In this work, a diagnostic application was performed by utilizing magnetic nanoparticles for the bio-sensing. A novel Fe3O4 nanostructure was synthesized in this paper using a simple hydrothermal method, the Fe3O4 nanoparticles are successfully controlled to provide a more dynamic site for catalytic reaction. FTIR-analysis, scanning electron microscopy (SEM), X-ray diffraction (XRD) was used to examine the morphology of the synthesized nanoparticles. The findings showed that a unique Fe3O4 nanostructure was obtained nanoparticles confined in nanosphere. The relative catalytic kinetics of Fe3O4 nanostructure has followed Michaelis–Menten behaviours, according to an analysis of peroxidase-like activity. An effective approach for colorimetric sensing of glucose was formulated on the bases of efficient peroxidase-mimicking activity of Fe3O4 nanoparticles. The synthesized Fe3O4 nanoparticles are very hopeful for the application of bio-sensors.
NLRP3 Inflammasome Priming and Activation Are Regulated by a Phosphatidylinositol-Dependent Mechanism
Authors: Hamilton Claire , Olona Antoni , Leishman Stuart , MacDonald-Ramsahai Kelly , Cockcroft Shamshad , Larrouy-Maumus Gerald , Anand Paras K
Published: August 2022

Imbalance in lipid homeostasis is associated with discrepancies in immune signaling and is tightly linked to metabolic disorders. The diverse ways in which lipids impact immune signaling, however, remain ambiguous. The phospholipid phosphatidylinositol (PI), which is implicated in numerous immune disorders, is chiefly defined by its phosphorylation status. By contrast, the significance of the two fatty acid chains attached to the PI remains unknown. In this study, by using a mass spectrometry–based assay, we demonstrate a role for PI acyl group chains in regulating both the priming and activation steps of the NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome in mouse macrophages. In response to NLRP3 stimuli, cells deficient in ABC transporter ATP Binding Cassette Subfamily B Member 1 (ABCB1), which effluxes lipid derivatives, revealed defective inflammasome activation. Mechanistically, Abcb1 deficiency shifted the total PI configuration exhibiting a reduced ratio of short-chain to long-chain PI acyl lipids. Consequently, Abcb1 deficiency initiated the rapid degradation of Toll/IL-1R domain–containing adaptor protein, the TLR adaptor protein that binds PI (4,5)-bisphosphate, resulting in defective TLR-dependent signaling, and thus NLRP3 expression. Moreover, this accompanied increased NLRP3 phosphorylation at the Ser291 position and contributed to blunted inflammasome activation. Exogenously supplementing wild-type cells with linoleic acid (LA), but not arachidonic acid, reconfigured PI acyl chains. Accordingly, LA supplementation increased Toll/IL-1R domain–containing adaptor protein degradation, elevated NLRP3 phosphorylation, and abrogated inflammasome activation. Furthermore, NLRP3 Ser291 phosphorylation was dependent on PGE2-induced protein kinase A signaling because pharmacological inhibition of this pathway in LA-enriched cells dephosphorylated NLRP3. Altogether, our study reveals, to our knowledge, a novel metabolic-inflammatory circuit that contributes to calibrating immune responses.
ERRATUM: Differences in spatial patterns of long-term care depending on severity in Hokkaido, Japan
Authors: Ohashi Kazuki , Fujiwara Kensuke , Tanikawa Takumi , Bando Kyohei , Aoki Tomohiro , Ogasawara Katsuhiko
Published: August 2022

Due to a mistake, the authors’ affiliations were incorrectly reported in this article, published in Geospatial Health in 2022 (DOI: 10.4081/gh.2022.1077 - PMID: 35579241).
The correct affiliations appear above.
Geospatial Health
DOI: 10.4081/gh.2022.1137
Об аппроксимации двоичных цепей Маркова высокого порядка малопараметрическими моделями
Authors: Kharin Yurii Semenovich , Voloshko V A
Published: August 2022

Мы рассматриваем две малопараметрические модели двоичных цепей Маркова высокого порядка и исследуем их способность аппроксимировать произвольные цепи Маркова высокого порядка. Введены два типа глобальных мер точности аппроксимации, для них и для рассматриваемых малопараметрических моделей получены теоретические и экспериментальные результаты. Новая состоятельная статистическая оценка параметров построена для малопараметрической модели на основе двухслойной искусственной нейронной сети.
Use of Aedes aegypti Oviposition Surveillance and a Geographic Information System for Planning Anti-Vectorial Measures
Authors: Abán Moreyra Daira N. , Castillo Paola M. , Escalada Andrés , Mangudo Carolina , Copa Griselda N. , Gleiser Raquel M. , Nasser Julio R. , Gil José F.
Published: August 2022

Arboviruses transmitted by Aedes aegypti pose a threat to global public health. Because there are no vaccines or drugs available, the prevention of these diseases in Argentina is based on integrated vector control. In this work, the spatiotemporal dynamics of the vector distribution was analyzed by monitoring oviposition. This information allowed the planning of anti-vector interventions and the evaluation of their effect on the relative abundance of mosquito populations in San Ramón de la Nueva Orán. Observed data were compared with the eggs expected via a statistical model based on meteorological variables. The oviposition substrate preference of mosquito females was also evaluated, and the possible relationship between the relative abundance of the vector and sociodemographic and environmental variables (normalized difference vegetation index and normalized difference water index) was explored. A total of 4,193 eggs of Ae. aegypti were collected, and spatial clusters were detected for all months for which the presence of the mosquito was reported. The observed number of eggs was significantly less than the expected-corrected egg abundance. A significant correlation of oviposition activity was found with three sociodemographic variables, whereas no significant correlation was found with mean or median values of the environmental variables studied. This monitoring strategy made it possible to address the interventions and evaluate them, proposing them as good complementary tools for the control of Ae. aegypti in northern Argentina.