bluuebunny/crossref_metadata_2025 huggingface dataset:
Draft Autograph of the Second Edition of “Taras Bulba” (1842)
Authors:   A.M. Gorky Institute of World Literature of the Russian Academy of Sciences, Sholokhova Anna S.
Published: June 2024

This article contains the first printed transcription of the draft autograph of the second edition of “Taras Bulba” (1842), today at the N. Vernadsky National Library of Ukraine. The transcription is devoid of third-party additions and edits and reproduces the features of the original. A short introduction discusses the features of this handwritten text and the various modalities of its use and reproduction in previous editions of N. Gogol’s works.
“Without a Hard Crust”. Recollections about Yu. Mann
Authors: Monakhova Irina R.
Published: June 2024

These recollections paint a portrait of the prominent scholar from the author’s memory. They describe not only an outstanding philologist but also an interesting and exceptional human being. In particular, they recount Mann’s participation in a number of literary projects, including collections of articles about Belinsky (“True Knight of the Spirit”, 2013) and Gogol (“‘Selected Passages from Correspondence with Friends’: N. Gogol’s Book in the Mirror of Russian Social Thought of the 19th–21st Centuries”, 2021). The author also discusses Mann’s contribution to the debate of transferring the Moscow monument to the great writer that took place on the occasion of Gogol’s anniversary. She notes Y. Mann’s rare combination of scholarly and literary talents as well as describing some features of his character and details of his biography. Finally, she proposes perpetuating the memory of the prominent scholar by installing a memorial plaque on the house in Moscow where Mann lived.
Ancient Greek Motifs in K. Batyushkov’s Poem “Hesiod and Omir — Rivals”
Authors:   Russian State University for the Humanities, Shchukin Grigory A.
Published: June 2024

The work of K. Batyushkov, one of the founders of Romanticism in Russia, provides an inexhaustible source of materials for scholars of Russian literature. In particular, it sheds light on the use of classical images in Russian Romanticism. This article considers the Russian Empire style — a current of Romanticism that was characterized by an interest in antiquity. It then studies K. Batyushkov’s poem “Hesiod and Omir — Rivals” to identify the motifs and characteristic images of antiquity to which the Romantic poet referred, analyse their functions and interrelations, and trace the transformation of these images by the author — from altering the spelling of names to consciously changing Greek images into Italic and Roman ones. In addition, the text is compared with the French original by C.H. Millevoye to uncover the specificity of the appeal to antiquity through the prism of translations from the French, which involved rethinking what had been read instead of direct translation. Finally, we analyse the main characters and the introduction of the author’s personal motives and experiences into their views, a feature that is generally characteristic of K. Batyushkov’s work.
Peningkatan hasil belajar materi puisi anak menggunakan problem based learning kelas IIB SDN Babarsari
Authors: Mahmudah Devi Nurul
Published: June 2024

Penelitian ini dilatarbelakangi oleh rendahnya hasil belajar peserta didik kelas IIB SDN Babarsari pada mata pelajaran Bahasa Indonesia. Tujuan penelitian ini untuk meningkatkan hasil belajar peserta didik pada materi Puisi Anak menggunakan model pembelajaran Problem Based Learning. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Subyek penelitian ini adalah peserta didik kelas IIB SDN Babarsari yang berjumlah 27 peserta didik. Penelitian ini terdiri dari 2 siklus, yaitu siklus I dan Siklus II. Setiap siklusnya terdapat satu kali kegiatan pembelajaran. Teknik pengumpulan data menggunakan Tes Tertulis untuk mengukur hasil belajar peserta didik. Hasil penelitian ini menunjukkan peningkatan hasil belajar peserta didik kelas IIB. Pada pra siklus nilai rata-rata yang diperoleh peserta didik sebesar 62. Selanjutnya, pada siklus I nilai rata-rata yang diperoleh peserta didik sebesar 74. Kemudian, pada siklus II nilai rata-rata yang diperoleh peserta didik sebesar 80. Dari pra siklus sampai siklus I mengalami peningkatan nilai rata-rata sebesar 12. Sedangkan dari siklus I sampai dengan siklus II mengalami peningkatan nilai rata-rata sebesar 6. Dapat disimpulkan bahwa model pembelajaran Problem Based Learning (PBL) ini mampu memperbaiki hasil belajar peserta didik kelas IIB SDN Babarsari.
Meningkatkan hasil belajar matematika materi sudut pada siswa kelas IV menggunakan model problem based learning berbantuan media jam sudut
Authors: Hasanah Mauidhotul , Rabbani Sylvia
Published: June 2024

Penelitian ini dilatar belakangi oleh rendahnya hasil belajarÂ  siswa kelas 4 sekolah dasar. Oleh karena itu, diperlukan suatu model dan media pembelajaran untuk meningkatkan hasil belajar dan pemahaman materi jenis sudut. Adapun tujuan penelitian ini adalah untuk mengetahui implementasi pembelajaran Matematika jenis sudut pada siswa kelas 4 SD dengan menggunakan model Problem Based Learning (PBL) berbantuan jam sudut. Penelitian ini menggunakan merupakan penelitian tindakan kelas. Subjek pada penelitian ini adalah siswa SD Kelas 4 di SDN Sepanjang Jaya 1 Kota Bekasi yang berjumlah 16 siswa yang terdiri dari 8 orang siswa laki-laki dan 8 siswa perempuan. Adapun instrumen pada penelitian ini Lembar observasi digunakan untuk mengetahui implementasi pembelajaran Matematika materi jenis sudut menggunakan model Problem Based Learning (PBL) berbantuan media jam sudut. Dari penelitian yang sudah dilakukan, dapat disimpulkan penggunaan model pembelajaran Problem Based Learning dengan berbantuan Media jam sudut dapat meningkatkan hasil belajar siswa pembelajaran Matematika materi jenis sudut pada siswa kelas 4 sekolah dasar. Selain itu, siswa belajar lebih bermakna, membuat siswa belajar untuk lebih memahami materi jenis sudut berdasarkan hasil pengalaman belajarnya, menyenangkan, aktif serta bersemangat..
Peningkatan hasil belajar luas bangun datar siswa kelas IV SDN Babarsari menggunakan problem based learning
Authors: Inayatun Fauziah Surya
Published: June 2024

Rendahnya hasil belajar siswa kelas IV SD Negeri Babarsari materi luas bangun datar menjadi latar belakang penelitian ini. Tujuan dari penelitian ini untuk mendeskripsikan peningkatan hasil belajar siswa kelas IV SD Negeri Babarsari menggunakan model pembelajaran Problem Based Learning (PBL) materi luas bangun datar. Subjek penelitian ini adalah siswa kelas IV SD Negeri Babarsari dengan jumlah 28 siswa. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Desain PTK yang digunakan terdiri dari dua siklus dengan menggunakan model Kemmis dan Taggart yang meliputi perencanaan, tindakan, observasi, dan refleksi. Teknik pengumpulan data menggunakan observasi, dokumentasi, dan tes. Analisis data yang digunakan adalah deskriptif kuantitatif. Hasil penelitian menunjukkan adanya peningkatan hasil belajar siswa setelah melakukan tindakan menggunakan model pembelajaran Problem Based Learning (PBL). Hasil tersebut diperkuat dengan meningkatkan persentase siswa yang mendapatkan nilai lebih dari atau sama dengan KKM yaitu 75. Pada pra siklus, presentase siswa yang tuntas sebesar 20% dan setelah diberikan tindakan persentase siswa yang tuntas meningkat menjadi 50% pada siklus I dan 85,71% pada siklus II. Maka dari itu, dapat disimpulkan bahwa model pembelajaran Problem Based Learning (PBL) dapat meningkatkan hasil belajar matematika siswa materi luas bangun datar siswa kelas IV SD Negeri Babarsari.
Analisis kebutuhan pengembangan instrumen penilaian diri pada PBI bermuatan literasi emosi di SD
Authors: Anzala Agnia Fadla
Published: June 2024

Penelitian ini dilatarbelakangi adanya urgensi penerapan literasi emosi untuk peserta didik. Dalam rangka mengetahui perkembangan literasi emosi peserta didik, maka tujuan penelitian ini yakni menganalisis kebutuhan instrumen penilaian diri sebagai penilaian literasi emosi bagi peserta didik. Penelitian ini menggunakan pendekatan kualitatif dengan teknik wawancara serta studi literatur sebagai teknik pengumpulan data. Wawancara dilakukan terhadap tiga orang guru kelas IV sekolah dasar yang bertempat di Kota Tasikmalaya. Hasil dari penelitian ini adalah 1) tidak adanya instrumen penilaian diri untuk mengukur literasi emosi peserta didik; dan 2) karakteristik instrumen penilaian diri untuk mengukur literasi emosi peserta didik. Dalam penelitian ini, guru belum sepenuhnya memahami mengenai literasi emosi sehingga belum dikembangkannya penilaian terhadap literasi emosi. Oleh karena itu, perlunya penilaian diri sebagai alternatif dalam mengukur literasi emosi untuk mengetahui perkembangan peserta didik.
Pengembangan e-modul IPAS berbasis pendekatan saintifik materi perubahan energi di sekolah dasar
Authors: Melinda Tiara , Nuryadin Asep , Nugraha Akhmad
Published: June 2024

Salah satu unsur penting dalam pembelajaran adalah bahan ajar. Akibatnya, bahan ajar harus dibuat sesuai dengan kurikulum yang berlaku serta karakteristik siswa. Komponen pengetahuan dan keterampilan dicakup oleh kurikulum saat ini, yang merupakan Kurikulum Merdeka. Aspek keterampilan dapat difasilitasi dengan menerapkan pendekatan saintifik yang bersifat ilmiah. Selain itu, bahan ajar yang dirancang perlu memperhatikan karakteristik siswa saat ini yang tergolong dalam digital native atau penduduk digital. Dengan begitu perlunya bahan ajar yang dapat memfasilitasi aspek keterampilan dengan memperhatikan karakteristik siswa. Dengan mempertimbangkan masalah tersebut, tujuan penelitian ini adalah mengembangkan e-modul IPAS berbasis pendekatan saintifik materi perubahan energi kelas IV sekolah dasar. Penelitian pengembangan ini menggunakan model ADDIE (Analyze, Design, Development, Implementation, Evaluation). Teknik pengumpulan data pada penelitian ini menggunakan wawancara, studi dokumentasi, observasi dan angket. Hasil validasi materi, media, dan pedagogik secara berurutan adalah 99,5%, 95,5%, dan 89,4%. Hasil implementasi e-modul IPAS berbasis pendekatan saintifik pada uji coba pertama adalah 93,3% dan 98,8% pada uji coba kedua. Hasil validasi dan angket respon siswa termasuk dalam kategori sangat layak. Dengan demikian, dapat dikatakan layak untuk menggunakan e-modul IPAS berbasis pendekatan saintifik.
Pengembangan media powerpoint interaktif (pointter) pada konsep dasar pembagian di kelas II sekolah dasar
Authors: Putri Nurul Kamila  , Karlimah  , Apriani Ika Fitri
Published: June 2024

Penelitian ini dilatarbelakangi oleh masih belum tersedianya media pembelajaran di sekolah khususnya media powerpoint interaktif di kelas II sekolah dasar pada materi konsep dasar pembagian. Adapun penelitian ini bertujuan untuk menggambarkan ketersediaan media pembelajaran di kelas II sekolah dasar sebelum dilakukan penelitian, mendeskripsikan desain pengembangan media powerpoint interaktif pada konsep pembagian di kelas II sekolah dasar, menunjukkan kelayakan desain pengembangan media powerpoint interaktif pada konsep pembagian di kelas II sekolah dasar, menggambarkan implementasi pengembangan media powerpoint interaktif pada konsep pembagian di kelas II sekolah dasar. Pada penelitian ini menghasilkan produk berupa media pembelajaran yakni powerpoint interaktif untuk materi konsep dasar pembagian di kelas II sekolah dasar. Metode penelitian yang digunakan yaitu kualitatif dengan pendekatan Design Based Research (DBR). Penelitian ini menghasilkan empat simpulan yakni media pembelajaran yang tersedia di sekolah masih merupakan media sederhana, media pembelajaran powerpoint interaktif terdapat beberapa elemen seperti gambar, suara dan video yang dikemas menjadi sebuah CD dilengkapi dengan buku panduan penggunaan media, produk yang telah dibuat oleh peneliti dinyatakan layak untuk diimplementasikan di sekolah, uji coba produk tersebut mendapatkan respon yang baik dari guru dan siswa dengan presentase mencapai 100%. Pengembangan media tersebut mampu meningkatkan motivasi belajar siswa dan membantu guru dalam menyampaikan materi pembelajaran.
Program ekstrakurikuler pramuka dalam upaya pengembangan karakter mandiri peserta didik di sekolah dasar
Authors: Nurasiah  , Solehuddin  , Supriatna Mamat
Published: June 2024

Penelitian ini bertujuan untuk mendeskripsikan secara analitis fakta lapangan tentang program ekstrakurikuler pramuka dalam upaya pengembangan karakter mandiri peserta didik di SDN Rengasdengklok Selatan VII. Penelitian ini merupakan penelitian kualitatif dengan metode studi kasus. Pengambilan Informan dilakukan sesuai dengan subjek permasalahan yang terkandung di dalam penelitian ini yaitu kepala sekolah, wali kelas VI, pembina pramuka dan siswa kelas VI. Pengumpulan data melalui wawancara, observasi, dan studi dokumentasi. Data di analisis dengan langkah-langkah reduksi data, display data, dan penarikan kesimpulan. Teknik pemeriksaan keabsahan data menggunakan triangulasi sumber, triangulasi teknik dan crosscheck. Hasil Penelitian menunjukkan bahwa program ekstrakurikuler pramuka yang dihasilkan berdasarkan hasil musyawarah gugusdepan.  Program ekstrakurikuler tersebut dilaksanakan melalui kegiatan latihan mingguan, perkemahan di gugusdepan dan kegiatan partisipasi kegiatan diluar gugusdepan baik yang berbentuk lomba maupun non lomba sehingga dapat dapat membentuk karakter mandiri yang sudah sampai pada tahap moral doing tetapi belum tercapai secara maksimal karena  belum semua siswa mempraktikkan nilai karakter mandiri tersebut  di dalam perilakunya sehari-hari, khususnya di sekolah.
 
Kata Kunci: Program Ekstrakurikuler, Pramuka, Pendidikan Karakter.
Mitigating The Ferroresonance Resulting from HILGF Clearing in a Remote Area 10 kV Power Distribution Network
Authors: Su Xueneng , Zhang Hua , Yu Zongmin , Wang JIng , Long Chen
Published: June 2024

To solve the problem of high impedance line-to-ground fault (HILGF), a
solution using isolation transformers for subnetwork divisions was
previously implemented in the power distribution network. As a result of
that, the network has been experiencing ferroresonance more often. We
have furthered our understanding of the situation by modelling and
simulations under the Power System Computer-Aided Design for
Electromagnetic Transients and Direct Current (PSCAD/EMTDC) based on its
real parameters. The ferroresonance originates from the network response
to the HILGF clearing. Subnetwork division has certainly improved the
network fault damping factor, but the line capacitance reduction it
caused has exposed the system to ferroresonance. To mitigate the
ferroresonance, high-frequency components are removed from the
zero-sequence current using the morphological filter; then through edge
detection, it is used as the input signal to the control module. The
control module then takes the ferroresonance mitigation action
intelligently. Testing this proposed solution has given promising
results that testify to its effectiveness in real-time application.
Investigating the Therapeutic Potential of Rehmanniae Radix and Rehmanniae Radix Praeparata in Alzheimer’s Disease: A Multi-Omics Approach
Authors: Han Xiang , Meng Xianglong , Wu Yuhui , Xia Wei , Xue Simin , Liu Xiaoqin , Lyu Chenzi , Li Ziang , Yan Xiaoning , Li Yuting , Bu Zhulin , Zhao Hongfei , Qi Xiaoming , Zheng Xuan , Zhang Shuosheng , Won Jung Hyo
Published: June 2024

Background and Purpose Alzheimer’s disease (AD), a progressive
neurological disorder that causes memory decline and cognitive
dysfunction, increasingly threatens human health. Rehmanniae Radix
Praeparata (RRP) is derived from the steamed or wine-steamed
Scrophulariaceae plant, Rehmannia glutinosa Libosch. (RR). They show
promise in the treatment of AD, yet the variations in medical components
and their mechanisms of action against AD remain unclear. Experimental
Approach This study initially used APP/PS1 mice as AD animal models and
used UPLC-QE-MS/MS, network pharmacology, proteomics, 16S rRNA
sequencing to investigate differences in the medical components and
mechanisms of action of RR and RRP in treating AD. Results UPLC-QE-MS/MS
screening revealed that ajugol was the effective medicinal component of
RR for AD treatment, and isoacteoside was that of RRP. Integrated
multi-omics analyses predicted the involvement of the neuroinflammatory
pathway, apoptosis pathway, and autophagy pathway in the mechanisms of
the two ingredients for AD treatment. Subsequent in vivo and in vitro
experiments confirmed that RR and its active component, ajugol,
primarily modulated TLR/NF-κB/NLRP3 neuroinflammatory pathway and
Bcl-2/Bax/Cytochrome C/Caspase-3 apoptosis pathway, whereas RRP and its
active component isoacteoside predominantly affected
LC3-Ⅱ/P62/p-mTOR/mTOR autophagy pathway. These components collectively
improved cognitive deficits in AD mice, reduced Aβ plaque deposition in
brain tissue, and diminished BV2 microglial cell cytotoxicity in the
inflammation model, thereby ameliorating the progression of AD.
Conclusion This study systematically elucidated the distinctions in the
medical components and biological mechanisms of RR and RRP in treating
AD, revealing that the unique processing of TCM is key to its efficacy.
Hereditary Amyloidosis: insights into a fibrinogen A variant protein
Authors: Ramella Nahuel A. , Cattaneo Elizabeth R. , Gisonno Romina A. , Abba Martín C. , Santana Marianela , Rosú Silvana A. , Nucifora Elsa , Aguirre María A. , Giordani María C. , Tricerri M. Alejandra
Published: June 2024

Amyloidosis are a group of diseases in which soluble proteins aggregate
and deposit in fibrillar conformation extracellularly in tissues. The
effectiveness of therapeutic strategies depends on the specific protein
involved, being crucial to accurately determine its nature. Moreover,
following the diagnosis, the search for the mutation within relatives
allows the clinical advice. Here we report the precise diagnosis and
explored the possible reasons of the structural pathogenicity. Whole
exome sequencing and GATK calling pipeline were leveraged to
characterize the protein variant present in a patient with kidney
failure. Bioinformatics strategies were applied to suggest potential
explanations of the variants aggregation. Our pipeline allowed the
identification of a single point variant of fibrinogen Aα chain, which
opened the possibility of curative transplantation. I n silico
structural analysis, suggested that the pathogenicity of the variant may
be attributed to a heightened susceptibility to yield a peptide prone to
deposit as an oligomer with a β-sheet structure. Exploiting the
comprehensive coverage of whole genome sequencing we managed to fill a
vacant stage in the diagnosis of hereditary amyloidosis and to stimulate
the advancement in biomedicine.
A Multi-Scale Particle-in-Cell Simulation of Plasma Dynamics from Magnetotail Reconnection to the Inner Magnetosphere
Authors: Rusaitis Liutauras , El-Alaoui Mostafa , Walker Raymond J. , Lapenta Giovanni , Schriver David
Published: June 2024

During magnetospheric substorms, plasma from magnetic reconnection in
the magnetotail is thought to reach the inner magnetosphere and form a
partial ring current. We simulate this process using a fully kinetic 3D
particle-in-cell (PIC) numerical code along with a global
magnetohydrodynamics (MHD) model. The PIC simulation extends from the
solar wind outside the bow shock to beyond the reconnection region in
the tail, while the MHD code extends much further and is run for nominal
solar wind parameters and a southward interplanetary magnetic field. By
the end of the PIC calculation, ions and electrons from the tail
reconnection reach the inner magnetosphere and form a partial ring
current and diamagnetic current. The primary source of particles to the
inner magnetosphere is bursty bulk flows (BBFs) that originate from a
complex pattern of reconnection in the near-Earth magnetotail at
xGSM=-18 RE to -30 RE. Most ion acceleration occurs in this region,
gaining from 10 to 50 keV as they traverse the sites of active
reconnection. Electrons jet away from the reconnection region much
faster than the ions, setting up an ambipolar electric field allowing
the ions to catch up after approximately 10 ion inertial lengths. The
initial energy flux in the BBFs is mainly kinetic energy flux from the
ions, but as they move earthward, the energy flux changes to enthalpy
flux at the ring current. The power delivered from the tail reconnection
in the simulation to the inner magnetosphere is >2x1011 W,
which is consistent with observations.
Quantifying estuarine bathymetric changes under sea-level cycles: Insights from a moving boundary framework
Authors: Kadir Md Nurul
Published: June 2024

Estuaries are dynamic coastal features that support industry,
food production, and recreation, and provide habitat for numerous animal
species. Their typically low surface gradients make estuaries vulnerable
to sea level rise, storms, and high river water discharge. This
vulnerability combined with the large number of people who often live
near estuaries has led to increasing efforts over recent decades to
improve our understanding of how to minimize flooding and protect people
and property. Despite these efforts, however, we still lack the tools to
quantify the relationship between changes in estuarine morphology and
flood risks. In particular, the interplay between bathymetric changes
and water levels during storm conditions remains poorly quantified. To
address this knowledge gap, we present a general enthalpy framework for
modeling the evolution of estuaries that couples a low gradient
subaerial topset and a subaqueous offshore region or foreset. Sediment
transport in both the subaerial and subaqueous domains includes a
non-linear term that relates sediment flux, local slope, and a threshold
of motion. With this approach, we describe the evolution of the
bathymetric profile and sediment partitioning between topset and foreset
under a range of sea-level variations scenarios. We find that in some
cases upstream sections of the topset can undergo erosion during periods
of sea-level rise and deposition during sea-level fall, contradicting
traditional stratigraphic models. These counterintuitive bathymetric
changes could potentially lead to shifts in the location of maximum
water levels along the estuary not accounted for by models of storm
inundation.
Online Learning of Entrainment Closures in a Hybrid Machine Learning Parameterization
Authors: Christopoulos Costa , Lopez-Gomez Ignacio , Beucler Tom , Cohen Yair , Kawczynski Charles , Dunbar Oliver , Schneider Tapio
Published: June 2024

This work integrates machine learning into an atmospheric
parameterization to target uncertain mixing processes while maintaining
interpretable, predictive, and well-established physical equations. We
adopt an eddy-diffusivity mass-flux (EDMF) parameterization for the
unified modeling of various convective and turbulent regimes. To avoid
drift and instability that plague offline-trained machine learning
parameterizations that are subsequently coupled with climate models, we
frame learning as an inverse problem: Data-driven models are embedded
within the EDMF parameterization and trained online using output from
large-eddy simulations (LES) forced with GCM-simulated large-scale
conditions in the Pacific. Rather than optimizing subgrid-scale
tendencies, our framework directly targets climate variables of
interest, such as the vertical profiles of entropy and liquid water
path. Specifically, we use ensemble Kalman inversion to simultaneously
calibrate both the EDMF parameters and the parameters governing
data-driven lateral mixing rates. The calibrated parameterization
outperforms existing EDMF schemes, particularly in tropical and
subtropical locations of the present climate, and maintains high
fidelity in simulating shallow cumulus and stratocumulus regimes under
increased sea surface temperatures from AMIP4K experiments. The results
showcase the advantage of physically-constraining data-driven models and
directly targeting relevant variables through online learning to build
robust and stable machine learning parameterizations.
Recent Fracture-Flow Variability on Thwaites Ice Shelf and Linkages to Atmosphere-Ocean Drivers
Authors: Wang Shujie , Alexander Patrick M. , Alley Richard B. , Huang Zhengrui , Parizek Byron Richard , Willet Amanda G. , Anandakrishnan Sridhar
Published: June 2024

The rapidly-changing Thwaites Ice Shelf is crucial for understanding
ice-shelf instability and its implications for sea-level rise from
Antarctica. Fractures play a significant role in this region but are
poorly characterized, especially regarding their vertical depth. To
address this gap, we developed a robust workflow that adapts to surface
topography complexities to characterize time-varying fracture vertical
properties over Thwaites using ICESat-2 altimetry measurements. We
derived seasonal flow velocities from Sentinel-1 data and analyzed
climate reanalysis data to examine flow-fracture interactions in the
context of oceanic and atmospheric changes. The results revealed
distinct fracturing and flow patterns between the eastern and western
sectors of the ice shelf. Significant fracturing was observed along the
shear margin and near the grounding line in the eastern sector,
correlating with flow speed increases exceeding 90% at shear zones. In
contrast, the western glacier tongue exhibited a less progressive
fracturing pattern, with an active fracture zone downstream of the
historical grounding line and overall flow deceleration. This is likely
due to the stabilizing effects of grounding-zone geometry, a subglacial
sill, and increased coupling to the slower-moving eastern sector.
Atmospheric and oceanic reanalysis data suggest that
atmosphere-sea-ice-ocean interactions could destabilize an ice shelf
through shallow oceanic warming. Warm winters, reduced sea ice, and
favorable winds and ocean currents can cause shoaling of warm
Circumpolar Deep Water, facilitating access of warm waters to thin,
structurally vulnerable areas such as shear margins and basal channels.
This intensifies fracturing and triggers damage-flow-acceleration
feedback that could lead to eventual ice-shelf destabilization.
Groundwater recharge assessment and hydrometeorological scenario in the Fetam catchment Upper Blue Nile Basin, Ethiopia.
Authors: Aynalem Mekonen Gedewon , Fentaye Silesh Mamo , Alemu Melkamu Meseret , Gizaw Endalkachew Abebaw
Published: June 2024

Groundwater serves as a vital freshwater source for communities in
Ethiopia, particularly in regions like the Fetam River Catchment within
the Upper Blue Nile Basin, where reliance on rainfall recharge is
significant. However, the uneven distribution of rainfall influenced the
distribution of groundwater. The variability of such factors like
altitude and land use practices presents challenges for sustainable
groundwater management. This study aims to quantify groundwater recharge
rates within the catchment, and assess the land use practices affecting
recharge, and determine average annual meteorological conditions. Seven
years daily meteorological data, including temperature, humidity,
sunshine hours, wind speed, and precipitation were analyzed.
Additionally, satellite imagery was utilized to understand land use land
cover distribution, with the help of field investigation the area is
dominated by cultivated land, grass land bult up, forested and bar
lands. Three established methods like chloride mass balance, water
balance, and water level fluctuation provides 114.5,165 238 mm/year. The
mean annual precipitation over a period of seven years is 1727.2mm/yr
and its average temperature varies from 10.4 to 29.6C°. The mean
recharge rate calculated across all three methods was found to be
172.5mm/yr slightly lower than Ethiopia’s national average of 200 mm/yr.
The dominant land use/cover types identified within the catchment
include agricultural fields, grasslands, forests, developed areas, and
bare land. Notably, water level fluctuation yielded higher recharge
estimates compared to the other methods. Considering the specific
physiographic characteristics of the region, the average value derived
from all three recharge estimation methods offers the most accurate
representation.
Bridging Paleoseismic and Geodetic Observations for the AD 1700 Cascadia Earthquake with an Earthquake Cycle Model
Authors: Qin Weilun , Govers Rob , Barlow Natasha Louise Mary , D'Acquisto Mario , Riva Riccardo E. M.
Published: June 2024

The last great megathrust earthquake in the Cascadia subduction zone
occurred in AD 1700, predating the instrumental record. While modern
geodetic techniques capture the ongoing interseismic deformation,
paleoseismic records provide estimates of the coastal subsidence over
the AD 1700 event. Here, we connect these geodetic and paleoseismic
observations using a 3D quasi-dynamic earthquake cycle model. The model
includes a realistic slab geometry and simulates the earthquake cycle
under the assumption that the coseismic rupture is consistent with the
interseismic locking pattern. The model predictions agree well with both
paleoseismic estimates of coastal subsidence during and after the
earthquake, as well as geodetic data on the current interseismic surface
velocity field. This suggests that our rupture-locking consistency
assumption is realistic for the central Cascadia subduction zone, and
the rupture patches in the AD 1700 event may be persistent in the next
megathrust event.
Improving the performance of a reduced-order mass-consistent model for urban environments and complex terrain with a higher-order geometrical representation
Authors: Bozorgmehr Behnam , Willemsen Pete , Gibbs Jeremy , Stoll Rob , Kim Jae-Jin , Patterson Zachary , Pardyjak Eric R.
Published: June 2024

Solid structures (buildings and topography) act as obstacles and
significantly influence the wind flow around them. Because of their
importance, faithfully representing the geometry of structures in
numerical predictions is critical to modeling accurate wind fields. A
higher-order geometry representation called the cut-cell method is
incorporated in the mass-consistent wind model, QES-Winds. To represent
the differences between a stair-step and the cut-cell method, an urban
case study (the Oklahoma City JU2003 experiments) and a complex terrain
case (from the MATERHORN campaign) are modeled in QES-Winds. Comparison
between the simulation results with the stair-step and cut-cell methods
and the measured data for sensors close to walls and buildings showed
that the sensitivity of the cut-cell method to changes in resolution is
less than the stair-step method.

Another way to improve the effects of solid geometries on the flow is to
correct the velocity gradient near the surface. QES-Winds solves for the
mass-consistent flow field and does not include the momentum effects.
This means that QES-Winds overestimates velocity gradients near the
surface which can lead to higher rates of scalar transport and incorrect
turbulence near the wall. The near-surface parameterization is designed
to correct the tangential near-surface velocity component in the normal
direction using the logarithmic assumption. Results, including the
near-wall parameterization, are evaluated with data from the Granite
Mountain case (the MATERHORN campaign), which indicates that the
parameterization slightly improves the performance of the model for
cells near the surface.
The development of a generative approach for joint super-resolution image reconstruction from highly sparse raw data in the context of MR-PET imaging
Authors: Malczewski Krzysztof
Published: June 2024

The present study introduces a rapid and efficient approach for reconstructing high-resolution images in hybrid MRI-PET scanners. The application of sparsity, compressed sensing (CS), and super-resolution reconstruction (SRR) methodologies can significantly decrease the demands of data acquisition while concurrently attaining high-resolution output. G-guided generative multilevel networks for sparsely sampled MR-PET input are shown here. Compressed Sensing using conjugate symmetry and Partial Fourier methodology speeds up data collection over k-space sampling methods. GANs and k-space adjustments are used in this image domain technique. The employed methodology utilizes discrete preprocessing stages to effectively tackle the challenges associated with the deblurring, reducing motion artifacts, and denoising of layers. Initial trials offer contextual details and accelerate evaluations. Preliminary experiments provide contextual information and expedite assessments.
The middle miocene (Badenian) holoplanktonic mollusks (Euthecosomata - Pteropoda) from Serbia, central paratethys
Authors: Jovanovic Gordana , Bosnjak Marija , Sremac Jasenka , Coric Stjepan , Vrabac Sejfudin
Published: June 2024

The present paper deals with holoplanktonic gastropods (Pteropoda) from the Middle Miocene (Badenian) deposits of Serbia. The material for the present study comes from three localities at the southern margin of the Pannonian Basin (Central Paratethys): Konjarnik (greater center of Belgra de), Sumijevac stream near Koceljeva (western Serbia), and Radljevo (Kolubara Basin, central Serbia). A total of four taxa were recorded and their stratigraphic value is discussed. Two taxa were identified to species level: Vaginella austriaca KITTL, 1886, belonging to the family Cavoliniidae GRAY, 1850 (1815), and Limacina valvatina (REUSS, 1867)?, from the family Limacinidae GRAY, 1847. Four specimens could only be identified to genus level (Vaginella sp. indet. and Clio? sp. indet.). The specimen of Clio? sp. indet. is possibly the first find of the genus Clio in Serbia. Here presented records of the genera Vaginella and Clio? from the late Badenian (NN6 nannozone) modify the insight into their paleogeographical distribution in the Middle Miocene of the Central Paratethys.
Synthesis and properties of zirconium-cerium composite via solid-state route
Authors: Sravanthi Naga , Sudagar J.
Published: June 2024

This study synthesized CeO2-doped ZrO2 nanoparticles using the solid-state
reaction, employing varying quantities of 0.05mol.%, 0.15mol.%, and
0.25mol.% CeO2. The structures of CeO2-doped ZrO2 were investigated through
XRD, revealing the presence of monoclinic ZrO2 in all samples, while the
average size of the crystallite increased as the concentration of CeO2
doping increased. The optical band gap of CeO2-doped ZrO2 was determined
using diffuse reflectance spectra, showing that the band gap decreased with
increasing doping concentrations. The investigation focused on
characterizing parameters such as dielectric constants, dielectric loss, and
AC conductivity, emphasizing their frequency dependence at room temperature
(RT). The dielectric constant and dielectric loss of Zr1-x CexO2 exhibited a
significant drop as the frequency increased (Maxwell-Wagner polarization).
Furthermore, the dielectric constant and dielectric loss factor in the lower
frequency band exhibited an increase as the cerium content in ZrO2
increased. The incorporation of cerium significantly impacted the optical
and electrical characteristics of composite ceramics consisting of CeO2 and
ZrO2.
Influence of iron on the mullite formation
Authors: Ilic Svetlana , Saponjic Aleksandra , Ivanovski Valentin , Posarac-Markovic Milica , Kokunesoski Maja , Janackovic Djordje , Devecerski Aleksandar
Published: June 2024

Influence of iron on the crystallization mechanism of mullite obtained from
the hybrid gels and doped with different concentrations of iron was
examined. DTA analysis showed that iron addition had a beneficial effect on
the mullite formation leading to the temperature decreasing as the amount of
iron increased. X-ray diffraction and M?ssbauer spectroscopy confirmed the
increased iron content in the mullite lattice, which led to an increase in
the unit parameter and was related to the higher iron content in regular
octahedra, disordered octahedra, and tetrahedra with oxygen vacancies.
Plate-like morphology observed by SEM suggests the two-dimensional crystal
growth (n = 2). The most prominent kinetic models were used to estimate n
and Ea from the DTA curves. Ea values increases as iron content increase,
indicating that mullitization slows down due to iron incorporation. The Ea
values for the undoped mullite sample ranged from 820 to 860 kJ/mol, from
820 to 890 kJ/mol for the iron-doped mullite sample containing 6.0 wt% of
Fe2O3, and from 960 to 1060 kJ/mol for the iron-doped mullite sample
containing 12 wt% of Fe2O3.
Calcined mullite powder produced from waste clay-diatomite
Authors: Saponjic A. , Maletaskic J. , Zildzovic S. , Radovanovic Z. , Kuzmanovic M. , Maslovara S. , Ilic S.
Published: June 2024

Mullite powders have been fabricated using diatomite powder as Si and
Al-nitrate as Al precursors, without using any additives. Samples were
calcined at three temperatures (1300, 1400 and 1500 ?C) for a period of 1, 2
and 4 h. The obtained powders were analyzed using X-ray powder diffraction
analysis (XRPD) PSA (Particle Size Analysis), FESEM (Field emission scanning
electron microscopy) and EDXS (Energy-dispersive X-ray spectroscopy).
Content of the crystalline phases with calcination temperature and dwell
time was computed by X-ray powder diffraction analysis (XRPD), using POWDER
CELL software. Field emission scanning electron microscopy (FESEM) images
confirmed that the rod shape morphology of mullite particles, with the
diameters around 500 nm, and lengths, 5 ?m embedded in an amorphous matrix.
XRPD of the sintered samples at 1300 ?C showed formation of thermally
stabile phases (mullite, cristobalite and corundum) that makes the analyzed
diatomaceous earth suitable for production of various types of construction
and thermal insulating ceramic materials.
Platelet-serotonin dynamics: elucidating their role in pulmonary arterial hypertension
Authors: Mindubayeva Farida , Ospanova Mariya , Akhmaltdinova Lyudmila , Tukbekova Bibigul
Published: June 2024

Background and Objectives:

Pulmonary arterial hypertension (PAH) is a significant complication in pediatric patients with congenital heart disease (CHD). The role of platelets and serotonin in the pathogenesis of PAH has been increasingly recognized. This study aims to investigate the correlation between platelet count, serotonin levels, and PAH in children with CHD, and to understand the impact of surgical intervention on these parameters.

Material and Methods:

This study included 26 children with CHD and PAH (Group I) and an 11-child control group without PAH. Pre- and post-operative platelet counts, mean platelet volume (MPV), platelet distribution width (PDW), plateletcrit (PCT), and serotonin levels in plasma and platelets were measured. Group I underwent surgical correction for CHD, and the control group received no such intervention. Data were analyzed to determine the relationships between these hematological and biochemical markers and PAH.

Results:

Group I showed higher pre-operative platelet counts and serotonin levels compared to the control group. Post-surgical data indicated a significant decrease in platelet serotonin levels, aligning more closely with the control group. The study also observed lower plasma serotonin levels in the control group, suggesting altered serotonin metabolism in PAH patients.

Conclusion:

The study suggests a strong association between elevated platelet counts, increased serotonin levels, and the presence of PAH in children with CHD. Surgical correction of CHD appears to normalize these parameters, indicating a potential pathophysiological link. These findings emphasize the need for further research to understand the underlying mechanisms and to explore targeted therapeutic strategies for PAH in pediatric CHD patients.
UNDERSTANDING YOUNG ENTREPRENEURS: INTEREST IN SUPPORTING BUSINESS SUCCESS
Authors: Oktaviani Retno Fuji
Published: June 2024

Reducing unemployment is one of the complex economic development problems that is being faced by various countries, including Indonesia. Increasing awareness and entrepreneurial abilities, which are currently being carried out by the government, is a way to improve economic conditions and increase community potential. This research aims to determine how student interest can support business success by paying attention to personal factors that influence student personality: environment, motivation, and skills. The research respondents were Budi Luhur University students who had previously been entrepreneurs, totaling 209 respondents. This research uses the Structural Equation Model method with Partials Least Square. The research results show that interest can mediate motivation and skills on business success; apart from that, environmental factors are an essential determinant of increasing students' motivation to become entrepreneurs. High motivation is the main drive; skills are a strong foundation in managing a business, while deep interest is the driving factor that maintains active involvement and focus on business development. A balanced combination of these three factors is often the key to student entrepreneurial success, helping them face challenges and take advantage of opportunities in the dynamic business world.
Effect of Temperature on Damage Identification of Laminated Composite by Means Numerical Methods
Authors: Ekici Bulent , Akın Mehmet Ali
Published: June 2024

This study aims to examine the effect of temperature on damage detection in laminated composite materials. In this context, a carbon-reinforced composite plate with [0/90]s stacking sequence is modeled as intact and delaminated by the finite element method. The dimensions, thicknesses, materials used, and stacking sequences of the plates modeled as intact and delaminated are the same. The delamination in the delaminated plate is modeled as the gap in the middle of the plate. These modeled plates were analyzed at different temperature values between -50oC / +50oC. The natural frequencies, mode shapes, and modal curvatures of the plate were obtained by modal analysis. The variation of these data obtained with temperature was examined and the effect of temperature on these data was compared. According to the analysis results, it was observed that the effect of temperature on natural frequency values and modal curvature values was similar to the effect of delamination. The decrease in natural frequencies and the changes in modal curvatures due to delamination occurred with the increase in temperature even in the absence of delamination.
РИФМОВАННЫЕ ТЕКСТЫ КАК СРЕДСТВО ОБУЧЕНИЯ ФРАНЦУЗСКОМУ ЯЗЫКУ МЛАДШИХ ШКОЛЬНИКОВ
Authors: Харитонова Ирина , Потапова Вера
Published: June 2024

Статья посвящена интеграции рифмованных текстов в процесс обучения французскому языку младших школьников. В контексте современных задач иноязычного образования, решаемых в начальной школе, обосновывается актуальность поставленной лингводидактической проблемы. Представлено описание рифмованных текстов как дидактического языкового материла. Показано, что использование песен, считалок, стихов приобщает школьников к изучаемой франкоязычной культуре, стимулирует процесс запоминания языкового материала при освоении различных аспектов французского языка. Построена дидактическая модель использования рифмованных текстов на различных этапах урока. Продемонстрированы необходимость и возможность применения разработанной модели в практике изучения фонетики, лексики и грамматики французского языка на начальном этапе. Описаны конкретные приемы и способы работы с рифмованными текстами на уроках французского языка в начальной школе.
Pengaruh Kemampuan Berpikir Kritis, Kemampuan Spasial, Kemampuan Literasi Matematis, Kemampuan Berpikir Visual, dan Kemampuan Komunikasi Matematis Terhadap IP Semester Mahasiswa
Authors: Ginting Adis Arivia Dewi Br , Syahputra Edi
Published: June 2024

Penelitian ini bertujuan untuk mengetahui : (1) apakah terdapat pengaruh secara simultan antara kemampuan berpikir kritis, kemampuan spasial, kemampuan literasi matematis, kemampuan berpikir visual, dan kemampuan komunikasi matematis terhadap IP semester mahasiswa, (2) apakah terdapat pengaruh secara parsial antara kemampuan berpikir kritis, kemampuan spasial, kemampuan literasi matematis, kemampuan berpikir visual, dan kemampuan komunikasi matematis terhadap IP semester mahasiswa. Penelitian ini menerapkan data primer melalui pendekatan kuantitatif. Populasi penelitian ini ialah mahasiswa Pendidikan Matematika Universitas Negeri Medan angkatan 2020 dengan sampel sebanyak 38 mahasiswa. Analisis regresi berganda merupakan analisis data yang diterapkan. Hasil penelitian menunjukkan F hitung > F tabel (48,027 > 2,503) yang mengindikasikan bahwa secara simultan, terdapat pengaruh positif antara kemampuan berpikir kritis, kemampuan spasial, kemampuan literasi matematis, kemampuan berpikir visual, dan kemampuan komunikasi matematis terhadap IP semester mahasiswa, yakni sebesar 88,2%. Kemudian, ditemukan juga hasil t hitung dari setiap variabel lebih besar dari t tabel  (t hitung > t tabel) yang mengindikasikan bahwa ada pengaruh positif secara parsial antara kemampuan berpikir kritis, kemampuan spasial, kemampuan literasi matematis, kemampuan berpikir visual, dan kemampuan komunikasi matematis terhadap IP semester mahasiswa.
Las ausencias también son presencias eternas
Authors:   Universidad Autónoma Latinoamericana, Flórez Ruiz José Rodrigo
Published: June 2024

Editorial
Lúdica y vulnerabilidad: otros sentidos en la educación y el desarrollo humano
Authors:   Universidad de Antioquia, Hernández Arboleda Paula Andrea , Cardona Rendón Beatriz Marleny ,   Universidad de Antioquia
Published: June 2024

El artículo se deriva de una reflexión en torno a la educación y el desarrollo humano a partir de la experiencia lúdica con niños y adolescentes que han sufrido diversas formas de vulneración. Las experiencia educativa vivenciada brindó la oportunidad de reflexionar y cuestionar las formas tradicionales que enmarcan la atención en este tipo de instituciones y así pensar otros sentidos de la lúdica, vincular la ética y la política en el contexto educativo, resignificar la vulnerabilidad y encontrar nuevas didácticas para el encuentro sensible con el otro; que invitan a proponer otras formas de pensar la interrelación entre la lúdica, la vulnerabilidad y el desarrollo humano en el escenario educativo.
Genetic analysis and identification of SSR marker linked topowdery mildew resistance in bitter gourd (Momordica charantia L.)
Authors: Prasanth K , Lakshmana Reddy D C , Sriram S , Venugopalan R , Pitchaimuthu M , Hima Bindu K , Varalakshmi B
Published: June 2024

The inheritance of powdery mildew resistance in bitter gourd resistant line IIHR-144-1 was studied in cross with two susceptible lines Arka Harit and IIHR Sel-5-8. The segregation ratios in F2 and backcross progenies indicated that resistance is governed by dominant-recessive epistasis or dominant inhibitory epistasis, indicating the involvement of more than one pairs of genes, one dominant and one recessive for resistance along with other background minor genes in the resistant line IIHR-144-1. Bulk segregant analysis of F2 population of cross between IIHR-144-1 and Arka Harit using SSR markers identified McSSR 57 produced a polymorphic DNA fragment that co-segregated with disease reaction. Considering the cross compatibility between Momordica charantia L. and M. charantia var. muricata (IIHR-144-1) the resistance trait can be transferred to cultivated species through hybridization and selection.
Effect of grafting on success and survivability of jamun (Syzygium cumini Skeels.) varieties
Authors: Kumar A , Chander S
Published: June 2024

Jamun (Syzygium cumini Skeels) is a vital fruit crop for arid regions. An investigation was conducted to assess the propagation success of four jamun varieties (CISH-42, CISH-37, Konkan Bahadoli and Goma Priyanka) in the south western region of Punjab. Data were collected on grafting success, graft survival, sprout initiation, number of sprouts and leaves per graft, graft height, and chlorophyll index. The results revealed that the variety Konkan Bahadoli recorded highest graft success (83.7%, 82.8%) and survival rates (76.6%, 73.9%) during both the years, followed by Goma Priyanka. The var. Konkan Bahadoli recorded earliest sprouting (16.6 days, 15.3 days, respectively in both years) and superior growth parameters, including the number of sprouts and leaves, graft height, and chlorophyll index. Overall, the var. Konkan Bahadoli responded best to grafting performed in March under south-western region of Punjab.