bluuebunny/crossref_metadata_2025 huggingface dataset:
Life Cycle Evolution of Inhomogeneous Mixing in Shallow Cumulus Clouds
Authors: Lim Jung-Sub , Hoffmann Fabian
Published: December 2023

Understanding how entrainment and mixing shape the cloud droplet size
distribution (DSD) is crucial for understanding the optical properties
and precipitation efficiency of clouds. Different mixing scenarios,
mainly homogeneous and inhomogeneous, shape the DSD in a distinct way
and alter the cloud’s impact on climate. However, the prevalence of
these mixing scenarios and how they vary in space and time is still
uncertain, as underlying processes are commonly unresolved by
conventional numerical models. To overcome this challenge, we employ the
$L^3$ model, which considers supersaturation fluctuations and
turbulent mixing down to the finest relevant lengthscales, making it
possible to represent different mixing scenarios realistically. We
investigate the spatial and temporal evolution of mixing scenarios over
the life cycle of shallow cumulus clouds for varying boundary layer
humidities and aerosol concentrations. Our findings suggest homogeneous
mixing is generally predominant in cumulus clouds, while different
mixing scenarios occur concurrently in the same cloud. Notably,
inhomogeneous mixing increases over the cloud life cycle across all
analyzed cases. The mean and standard deviation of supersaturation are
found to be the most capable indicators of this evolution, providing a
comprehensive insight into the characteristics of mixing scenarios.
Finally, we show inhomogeneous mixing is more prevalent in drier
boundary layers and for higher aerosol concentrations, underscoring the
need for a more comprehensive investigation of how these mixing dynamics
evolve in a changing climate.
Characteristic Slow-Slip Events on the Superstition Hills Fault, Southern California
Authors: Vavra Ellis , Fialko Yuri , Rockwell Thomas K. , Bilham Roger , Stepancikova Petra , Stemberk Jakub , Tábořík Petr , Stemberk Josef
Published: December 2023

The Superstition Hills Fault (SHF) exhibits a rich spectrum of slip
modes, including M 6+ earthquakes, afterslip, quasi-steady creep, and
both triggered and spontaneous slow slip events (SSEs). Following 13
years of quiescence, creepmeters recorded 25 mm of slip during 16-19 May
2023. Additional sub-events brought the total slip to 41 mm. The event
nucleated on the northern SHF in early-May and propagated bi-laterally
at rates on the order of kilometers per day. Surface offsets reveal a
bi-modal slip distribution, with slip on the northern section of the
fault being less localized and lower amplitude compared to the southern
section. Kinematic slip models confirm systematic variations in the slip
distribution along-strike and with depth and suggest that slip is
largely confined to the shallow sedimentary layer. Observations and
models of the 2023 SSE bear a strong similarity to previous slip
episodes in 1999, 2006, and 2010, suggesting a characteristic behavior.
Quantifying and attributing methane emissions from coal mine aggregation areas using high-frequency ground-based observations
Authors: Lu Fan , Qin Kai , Cohen Jason Blake , Tu Qiansi , Ye Chang , Shan Yanan , Tiwari Pravash , He Qin , Xu Qing , Wang Shuo
Published: December 2023

This work introduces the results of an intensive 15-day surface
observation campaign of methane (CH4) and adapts a new analytical method
to compute and attribute CH4 emissions. The selected area has a high
atmospheric concentration of CH4 (campaign-wide minimum/mean/standard
deviation/max observations: 2.0, 2.9, 1.3, and 16 ppm) due to a rapid
increase in the mining, production, and use of coal over the past
decade. Observations made in concentric circles at 1km, 3km, and 5km
around a high production high gas coal mine were used with the mass
conserving model free emissions estimation approach adapted to CH4,
yielding emissions of 0.73, 0.28, and 0.15 ppm/min respectively.
Attribution used a 2-box mass conserving model to identify the known
mine’s emissions from 0.042-5.3 ppm/min, and a previously unidentified
mine’s emission from 0.22-7.9 ppm/min. These results demonstrate the
importance of quantifying the spatial distribution of methane in terms
of control of regional-scale CH4 emissions.
Humidity Dependence of AE Activity in Sheared Quartz Gouges and its Implication for the Micromechanics of Friction
Authors: Yabe Yasuo
Published: December 2023

The humidity-dependent acoustic emission (AE) activity in a quartz gouge
layer was investigated via sliding-rate step tests. Because AE events
are generated by the brittle failure of the contact junction, their
activity reflects the micromechanics of friction. AE activity was
evaluated by the m-value (characterizing amplitude distribution), AE
rate (number of events per unit sliding distance), and their
sliding-rate dependences. The m-value decreased with increasing
humidity, suggesting contact junction growth by the pressure solution.
Increased humidity decreased the AE rate and enhanced the rate-weakening
of friction, implying the role of water in suppressing the brittleness
of contact junction and strengthening macroscopic instability. Notably,
the relationship between the direct effect of friction and the
sliding-rate dependence of AE rate under dry conditions was distinct
from those under other conditions, suggesting these are sensitivity to
areal fraction of the water film on the surface of the gouge particle.
Compartmentalization of Axial Seamount's magma reservoir inferred by analytical and numerical deformation modeling with realistic geometry
Authors: Slead Sandra R , Wei Meng (Matt) , Nooner Scott Lee , Jr. William W. Chadwick , Caress David W , Beeson Jeffrey Watson
Published: December 2023

Axial Seamount is a submarine volcano on the Juan de Fuca Ridge with
enhanced magma supply from the Cobb Hotspot. Here we compare several
deformation model configurations to explore how the spatial component of
Axial’s deformation time series relates to magma reservoir geometry
imaged by multi-channel seismic (MCS) surveys. To constrain the models,
we use vertical displacements from pressure sensors at seafloor
benchmarks and repeat autonomous underwater vehicle (AUV) bathymetric
surveys covering 2016-2020. We show that implementing the MCS-derived 3D
main magma reservoir (MMR) geometry with uniform pressure in a finite
element model poorly fits the geodetic data. To test the hypothesis that
there is compartmentalization within the MMR that results in
heterogeneous pressure distribution, we compare analytical models using
various horizontal sill configurations constrained by the MMR geometry.
Using distributed pressure sources significantly improved the Root Mean
Square Error (RMSE) between the inflation data and the models by an
order of magnitude. The RMSE between the AUV data and the models was not
improved as much, likely due to the relatively larger uncertainty of the
AUV data. The models estimate the volume change for the 2016-2020
inter-eruptive inflation period to be between 0.054-0.060 km3 and
suggest that the MMR is compartmentalized, with most magma accumulating
in sill-like bodies embedded in crystal mush along the western-central
edge of the MMR. The results reveal the complexity of Axial’s plumbing
system and demonstrate the utility of integrating geodetic data and
seismic imagery to gain deeper insights into magma storage at active
volcanoes.
The current state of fishery in water bodies of the Vologda Oblast and its impact on commercial stocks of aquatic biological resources
Authors: Коновалов А.Ф. , Борисов М.Я. , Тропин Н.Ю. , Угрюмова Е.В. , Игнашев А.А. , Непоротовский С.А. , Попета Е.С. , Шилова А.Е. , Думнич Н.В.
Published: December 2023

В статье выполнен обзор современного состояния промышленного и любительско- го рыболовства на важнейших рыбохозяйственных водных объектах Вологодской области. Об- щий годовой улов водных биоресурсов в водоемах региона в 2013–2022 гг. в среднем составлял 1627 т, в том числе 703 т в оз. Белом, 328 т в Рыбинском водохранилище, 222 т в оз. Онежском, 171 т в оз. Кубенском, 129 т в Шекснинском водохранилище и 74 т в оз. Воже. В составе уловов в озерах Белом и Кубенском, а также в Шекснинском водохранилище доминировал лещ, обеспе- чивая 28.5–39.0% от общего. В Онежском озере 93.2% уловов давала корюшка европейская, в Рыбинском водохранилище преобладал синец (28.4%), а в озере Воже – судак (42.5%). В озерах Белом, Кубенском, Воже, Рыбинском водохранилище в течение года наибольший промышлен- ный вылов приходился на декабрь, когда добывалось 22–35% от годового улова. В Шекснинском водохранилище около 48% годового вылова осуществлялось в январе–марте, а в оз. Онежском свыше 96% уловов приходилось на май за счет корюшки европейской. Промысловые запасы основных видов рыб в оз. Белом за последние 10 лет в среднем составляли 6299 т, в оз. Ку- бенском – 2880 т, в Шекснинском водохранилище – 2644 т, в оз. Воже – 1903 т. Освоение общих допустимых уловов и рекомендованных объемов добычи водных биоресурсов в оз. Белом за рас- сматриваемый период в среднем составляло 59.7%, в оз. Кубенском – 33.7%, в оз. Воже – 31.9%, в Шекснинском водохранилище – 25.8%.

The article presents a scientific review of the current state of industrial and amateur fisheries in the most important fishery water bodies of Vologda Oblast. In 2013–2022, the total annual catch of aquatic biological resources averaged 1627 tons, including 703 tons in lake Beloye, 328 – in the Rybinsk reservoir, 222 – in lake Onega, 171 – in lake Kubenskoye, 129 – in the Sheksna reservoir, and 74 tons in lake Vozhe. Bream dominated in the catches of lakes Beloye, Kubenskoye and the Sheksna reservoir (28.5–39.0%). European smelt accounted for 93.2% of the total capture in lake Onega; zope dominated in the Rybinsk Reservoir (28.4%) and pike perch – in lake Vozhe (42.5%). Lakes Beloye, Kubenskoye, Vozhe, including the Rybinsk reservoir, demonstrated maximum commercial catch (22– 35%) in December, the Sheksna reservoir – from January to March (about 48%), and lake Onega in May due to European smelt fishing (over 96%). Over the past 10 years, the stocks of the main commercial fish species in lakes Beloye and Kubenskoye, the Sheksna reservoir and lake Vozhe made up 6299, 2880 2644 and 1903 tons, respectively. Development of the total allowable catches (TAC) and the recommended volumes of production (catch) of aquatic biological resources (RC) in lake Beloye was within 59.7%; in lake Kubenskoye – 33.7%, in lake Vozhe – 31.9%, in the Sheksna reservoir – 25.8%.
Population-genetic structure of the sterlet Acipenser ruthenus L., 1758 in the Mologa River during its re-acclimatization
Authors: Игнашев А.А. , Щербакова В.Д. , Борисов М.Я. , Барминцева А.Е. , Думнич Н.В. , Мюге Н.С.
Published: December 2023

В работе рассмотрены особенности размерно-возрастной структуры, рост и генети- ческий полиморфизм формируемой в ходе реакклиматизационных мероприятий популяции стер- ляди р. Молога Вологодской области. Вселение стерляди в р. Молога началось в 2016 г., а в науч- но-исследовательских уловах она стала встречаться с 2018 г. На русловых медиальных участках реки доля стерляди в общих уловах составляла от 31.4% до 49.3% по численности и от 26.0% до 64.0% по биомассе. В 2022 г. в составе уловов отмечены рыбы длиной 22–51 см, массой 64– 958 г пяти возрастных групп. Размерный, весовой и возрастной состав формируемой популяции в настоящее время определяется количеством выпускаемой в отдельные годы молоди стерляди. Анализ митохондриальной ДНК выявил 23 различных мтДНК гаплотипа и низкое относительное гаплотипическое разнообразие. Уровень наблюдаемой гетерозиготности ядерной ДНК составил в среднем 0.567 с диапазоном от 0.149 до 0.871. Генетическая разнородность особей в формиру- емой популяции стерляди р. Мологи достаточна для локальной популяции отдельно взятой реки.

This paper examines the size-age structure, growth and genetic polymorphism of the sterlet population of the Mologa River, Vologda Oblast, formed during reacclimatization measures. The introduction of sterlet into the Mologa River began in 2016, and since 2018 it has been found in research catches. In the channel medial sections of the river, the proportion of sterlet in total catches ranged from 31.4% to 49.3% in numbers and from 26.0% to 64.0% in biomass. In 2022, the catches included fish with a length of 22–51 cm and a weight of 64–958 g of five age groups. The size, weight and age composition of the emerging population is currently determined by the number of juvenile sterlet released in individual years. Mitochondrial DNA analysis revealed 23 different mtDNA haplotypes and low relative haplotype diversity. The level of observed nuclear DNA heterozygosity averaged 0.567 with a range from 0.149 to 0.871. Genetic heterogeneity of individuals in the emerging population of sterlet from the Mologa River is sufficient for the local population of a river.
Assessing the consumptive safety of fish with different mercury content in its muscles (water bodies of Vologda Oblast as a case study)
Authors: Борисов М.Я. , Иванова Е.С. , Тропин Н.Ю. , Шилова А.Е. , Угрюмова Е.В. , Баженова Д.Э.
Published: December 2023

Содержание ртути в мышечной ткани рыб водных объектов Вологодской области варьирует в пределах от менее чем 0.001 до 2.492 мкг/г сырой массы. Минимальные средние значения отмечены для радужной форели и снетка (0.025 и 0.066 мкг/г), максимальные сред- ние – для жереха и кильца (0.401 и 0.472 мкг/г). Установлено, что у 12.1% исследованных особей нехищных видов и 9.5% особей хищных видов рыб содержание ртути превышает нормативные уровни, действующие в РФ для этих групп видов (≥ 0.3 мкг/г и ≥ 0.6 мкг/г соответственно). Доля исследованной рыбы, употребление которой приведет к превышению допустимого еженедельно- го поступления ртути в организм (RfD согласно US EPA) составляет 50% для детей дошкольного возраста (2–5 лет), 37% для детей младшего школьного возраста (6–10 лет), 24% для детей сред- него школьного возраста (11–15 лет) и 18% для взрослого населения.

The mercury content in muscle tissues of fish from the water bodies of Vologda Oblast varied within 0.001–2.492 μg/g wet weight. The minimum average values were recorded for rainbow trout and smelt (0.025 and 0.066 μg/g), while the maximum average – for asp and smelt (0.401 and 0.472 μg/g). In 12.1% of the studied non-predatory and 9.5% of predatory fish specimens, mercury concentrations exceeded the RF standard levels established for these groups of species (≥ 0.3 μg/g and ≥ 0.6 μg/g, respectively). The proportion of the examined fish, the consumption of which would result in exceeding the permissible weekly mercury intake (RfD according to US EPA) made up 50% for preschool children (2–5 years), 37% for primary school children (6–10 years), 24 % for a secondary school age (11– 15 years), and 18% for adults.
Assessing the ecological state of a small river in the urbanized area in terms of phytoplankton, zooplankton and zoobenthos characteristics (the Sodema River of Vologda Oblast as a case study)
Authors: Лобуничева Е.В. , Макарёнкова Н.Н. , Ивичева К.Н. , Филоненко И.В. , Литвин А.И. , Попета Е.С. , Думнич Н.В.
Published: December 2023

По результатам исследований 2021 и 2022 гг. в р. Содеме (Вологодская область) за- регистрировано 125 видов и форм фитопланктона, 74 вида зоопланктона и 70 видов зообентоса. Выше по течению от г. Вологда фитопланктон реки немногочислен (0.2 млн кл./л и 0.3 г/м3), доми- нируют диатомовые водоросли. Зоопланктон и зообентос в верховьях наиболее разнообразны. Зоопланктон характеризуется высоким обилием (7.1 тыс. экз./м3, 0.5 г/м3). Водоток в верхнем те- чении оценивается как мезотрофный, чистый, β-мезосапробной зоны. В черте г. Вологда увеличи- вается разнообразие фитопланктона и обилие цианобактерий, эвгленовых и криптофитовых во- дорослей. Видовое богатство зоопланктона и зообентоса резко снижается. Обилие зоопланктона становится низким (0.8 тыс. экз./м3, 10 мг/м3). В зообентосе массово развиваются олигохеты. Ниж- нее течение р. Содемы характеризуется как эвтрофное и гиперэвтрофное, β-α-мезосапробной зоны. Наибольшее влияние загрязнение реки оказывает на состояние зообентоса, что связано с накоплением загрязняющих веществ в грунтах.

During the studies (2021–2022) of the Sodema River (Vologda Oblast), a total of 125 spe- cies and forms of phytoplankton, 74 species of zooplankton and 70 species of zoobenthos were identified. Above the city of Vologda, the riverine phytoplankton was not abundant (0.2 mln cells/l, 0.3 g/m3); diatoms dominated. Zooplankton and zoobenthos in the upper river reaches were most diverse. Zooplankton number was very high (7.1 thous. ind./m3, 0.5 g/m3). Upstream, the river was assessed as mesotrophic, clean and β-mesosaprobic. Within the city of Vologda, phytoplankton diver- sity and abundance of cyanobacteria, euglena and cryptophyte algae increased, while species rich- ness of zooplankton and zoobenthos sharply declined. Zooplankton number was low (0.8 thous. ind./ m3, 10 mg/m3). In zoobenthos, oligochaetes developed en masse. Low reaches of the Sodema were characterized as eutrophic, hypereutrophic and β-α-mesosaprobic. River pollution greatly affected zoobenthos because of pollutants accumulation in soil.
أهمية نظرية الأداء المميز في تحديد القانون الأصلح للعاقد الضعيف في عقد العمل الدولي
Authors: Ali Younis S.
Published: December 2023

يحاول هذا البحث دراسة أهمية نظرية الأداء المميز في حماية العاقد الضعيف في العقود التي لا تتساوى فيها القوة التفاوضية بين طرفي العقد, على الرغم من تدخل القانون بقواعد قانونية آمرة لحماية العاقد الضعيف. ومن أبرز هذه العقود هو عقد العمل الذي لا تتساوى فيه القوة التفاوضية بين العامل وصاحب العمل, فيترتب على ذلك الإضرار بمصلحة العامل اذا ما تم تطبيق قانون الارادة أو القانون المختار على عقد العمل الدولي. فيبرز دور نظرية الأداء المميز في تحديد القانون الأصلح للعاقد الضعيف عن طريق الإسناد المرن للرابطة أو العلاقة العقدية المشوبة بعنصر أجنبي بدلاً عن الإسناد الجامد وفقاً لنظرية التركيز الموضوعي أو التوطين المكاني للعلاقة الخاصة الدولية, اذ يتم تطبيق نظرية الأداء المميز عن طريق نظرية التركيز الموضوعي, ولكن بواسطة الإسناد المرن وليس الجامد.
Реконструкция производственно-технической базы АО КПАТП-1
Authors: Давлетшин Рустам
Published: December 2023

В данной работе производится реконструкция производственно-технической базы АО КПАТП-1 с разработкой станции технического обслуживания.
Analisis Miskonsepsi Menggunakan Certainty of Response Index Pada Materi Suhu dan Kalor Tema 6
Authors: Fauziah Anida , Ananda Lala Jelita
Published: December 2023

Tujuan penelitian ini adalah untuk mengetahui kelayakan, kepraktisan dan efektifitas LKPD menggunakan anyflip. Jenis penelitian ini adalah penelitian pengembangan (Reseach and Development) yang menggunakan model pengembangan ADDIE dengan 5 langkah penelitian yaitu Analysis, Design, Development, Implementation, and Evaluation. Subjek penelitian ini adalah siswa kelas IV SDN 060836 Danau Singkarak. Instrumen yang digunakan dalam pengumpulan data yaitu wawancara guru, angket validasi materi dan media, angket praktisi pendidikan (guru), dan soal tes. Berdasarkan uji keefektifan LKPD menggunakan anyflip yang dikembangkan, nilai siswa meningkat dari awal sebelum menggunakan LKPD berbasis anyflip siswa mendapat nilai rata-rata 53,25 meningkat menjadi 81,81. Dari penelitian dan data yang ditemukan menunjukkan bahwa pengembangan elektronik lembar kerja peserta didik menggunakan anyflip ini sudah sangat layak digunakan dalam proses pembelajaran di sekolah.
Bahan Ajar Membaca Kritis Kreatif Berbasis Model Somatic Auditory Visual and Intellectual
Authors: Faisal Faisal , Puspita Rita
Published: December 2023

Tujuan penelitian ini adalah untuk mengetahui validitas, praktikalitas, dan efektivitas Bahan Ajar Membaca Kritis Kreatif berbasis Model Somatic Auditory Visual and Intellectual. Jenis penelitian ini adalah penelitian pengembangan (Reseach and Development) yang menggunakan model pengembangan ADDIE dengan 5 langkah penelitian yaitu Analysis, Design, Development, Implementation, and Evaluation. Subjek penelitian ini adalah peserta didik kelas IV SDN 106867 Bintang Timur. Instrumen yang digunakan dalam pengumpulan data yaitu pedoman wawancara guru dan peserta didik, angket validasi materi dan media, angket validasi desain dan materi, angket praktisi pendidikan, dan soal tes. Berdasarkan uji keefektifan Bahan Ajar Membaca Kritis Kreatif Berbasis Model Somatic Auditory Visual and Intellectual yang dikembangkan, nilai peserta didik meningkat dari awal sebelum menggunakan Bahan Ajar Membaca Kritis Kreatif Berbasis Model Somatic Auditory Visual and Intellectual peserta didik mendapat nilai rata-rata 60,48 meningkat menjadi 89,36. Dari penelitian dan data yang ditemukan menunjukkan bahwa pengembangan Bahan Ajar Membaca Kritis Kreatif Berbasis Model Somatic Auditory Visual and Intellectual ini sudah valid, praktis, dan efektif digunakan dalam proses pembelajaran di sekolah.
Model Pembelajaran Kooperatif Tipe Make A Match Berbantuan Media Flascard sebagai Stimulus Keaktifan Belajar Siswa Sekolah Dasar
Authors: Siregar Arifin , Lumbanraja Rivaldo
Published: December 2023

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Kooperatif Tipe Make A Match Berbantuan Media Flshcard terhadap hasil belajar IPS siswa pada Tema 8 Lingkungan Sahabat Kita Subtema 2 Perubahan Lingkungan Pembelajaran 3 dan 4 Kelas V SD Negeri 2 Harian, Desa Harian, Kecamatan Onanrunggu Kabupaten Samosir T. A 2022/2023.Penelitian ini menggunakan Pre-Eksperimen dengan desain penelitian One Group Pretest-Postest. Populasi yang digunakan dalam penelitian ini yaitu seluruh kelas V SD Negeri 2 Harian yang berjumlah 15 orang. Sampel yang digunakan dalam penelitian berjumlah 15 orang. Instrument dalam penelitian ini berupa dokumentasi dan tes hasil belajar Tema 8 Subtema 2 Pembelajaran 3 dan 4 sebanyak 20 soal pilihan berganda. Teknik analisis data yang digunakan adalah uji normalitas dan dilanjutkan dengan uji hipotesis yaitu uji-t. Hasil penelitian ini menunjukkan   dan 5.Dari data tersebut dapat diketahui bahwa , yaitu . Hal ini berarti Ha diterima maka terdapat pengaruh yang signifikan dari penggunaan model pembelajaran kooperatif tipe Make A Match Berbantuan Media Falshcard terhadap hasil belajar IPS siswa kelas V SD Negeri 2 Harian, Desa Harian, Kecamatan Harian Kabupaten Samosir T.A 2022/2023.
Meningkatkan Hasil Belajar Melalui Model Project Based Learning Berbantuan Pop Up Book Materi Penyajian Data Kelas IV
Authors: Jannah Eka Chlistia , A Salviliyanngsih , Rustika Putik
Published: December 2023

Hasil belajar matematika peserta didik masih rendah. Terlihat dari siswa yang mengerjakan soal matematika yang berbeda dari contoh yang diberikan oleh guru. Penelitian ini bertujuan untuk mengetahui pemanfaatan Pop Up Book menggunakan model pembelajaran Project Based Learning (PjBL) mata pelajaran Matematika materi penyajian data pada siswa kelas IV SD Negeri Sunyaragi 2. Penelitian ini adalah penelitian tindakan kelas (classroom action research) dilaksanakan dua siklus. Setiap siklus terdiri dari tiga pertemuan. subjek penelitian adalah 18 siswa kelas IV-B SD Negeri Sunyaragi 2. Pengumpulan data menggunakan teknik tes dan non tes. Indikator keberhasilan penelitian ini adalag berpikir kreatif meningkat dari siklus ke siklus berikutnya. Hasil tes formatif siklus I menunjukan bahwa 92,3% dan hasil tes formatif siklus II menunjukan 94%. Hal ini menunjukan adanya peningkatan hasil belajar siswa. Kesimpulannya adalah bahwa pemanfaatan Pop Up Book menggunakan model Project Based Learning (PjBL) dapat meningkatkan penguasaan materi sub pokok bahasan penyajian data pada siswa kelas IV SD Negeri Sunyaragi 2 Cirebon Semester Genap Tahun Ajaran 2022/2023. Saran dalam penelitian ini adalah sebagai berikut : perbanyak latihan agar siswa lebih mudah menguasai materi, perhatikan intensitas latihan mandiri agar siswa tidak mengalami kejenuhan, guru harus terampil dalam mengatasi kesulitan belajar siswaKeywords: Learning Outcomes, Pop Up Book, Project Based Learning (PjBL), Data Presentation.
Lembar Kerja Peserta Didik (LKPD) Berbasis Project Based Learning Sebagai Stimulus Belajar Siswa Sekolah Dasar
Authors: Yobelta Aquina , Simanungkalit Erlinda , Sembiring Masta Marselina , Handayani Dila
Published: December 2023

Penelitian ini dilaksanakan dengan tujuan untuk mengembangkan Lembar Kerja Peserta Didik (LKPD) Berbasis Project Based Learning pada tema 6 subtema 3 kelas V SDN 106811 Bandar Setia serta menguji kelayakan, kepraktisan, dan keefektivan LKPD yang dikembangkan. Penelitian ini dilakukan dengan menggunakan jenis penelitian dan pengembangan (research and development), dengan model yang dipilih ialah model 4D yang dikembangkan oleh Thiagarajan. Sampel dalam penelitian ini ialah 23 orang siswa kelas VB SDN 106811 Bandar Setia, validator ahli materi dan desain serta praktisi pendidikan. Teknik Pengumpulan data dilakukan dengan menggunakan teknik observasi, angket dan tes hasil belajar siswa. Teknik analisis data yang digunakan ialah metode analisis deskriptif kualitatif dan metode analisis deskriptif kuantitatif. Hasil yang diperoleh setelah melaksanakan penelitian pengembangan ini ialah penilaian dari ahli materi dengan skor 94,7% dengan kategori “sangat layak”, validator ahli desain 96% dengan kategori “sangat layak” dan praktisi pendidikan 96% dengan kategori “sangat praktis”. Selanjutnya diperoleh peningkatan presentase ketuntasan belajar klasikal siswa. Dapat dilihat dari hasil pre test yang diperoleh ialah 30,4% siswa yang tuntas yang kemudian meningkat pada pelaksanaan post test, yaitu sebesar 91,3% siswa telah tuntas. Peningkatan yang cukup pesat membuktikan produk LKPD “sangat efektif” bagi kegiatan belajar siswa.
Peranan Orang Tua Terhadap Sosial Emosional Anak Usia Dini
Authors: Tanjung Erma Yuliani , Kamtini Kamtini
Published: December 2023

Tujuan penelitian ini adalah untuk mengetahui perkembangan sosial emosional anak serta peran orang tua dalam perkembangan sosial emosional anak di TK Aisyiyah Bustanul Athfal Ladang Tengah kecamatan Andam dewi kabupaten Tapanuli Tengah. Penelitian ini menggunakan pendekatan kualitatif deskriptif. Penelitian dilakukan di TK Aisyiyah Bustanul Athfal. Adapun teknik yang dilakukan yaitu observasi dan wawancara terhadap 20 orang tua di TK Aisyiyah Bustanul Athfal Ladang Tengah. Kemudian data di analisis menggunakan teknik reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa peran orang tua sangat berdampak terhadap sosial emosioanl anak, dimana orang tua mengajarkan anak untuk mengenal dan memahami emosi atau perasaan yang dirasakan oleh anak, mengajarkan anak untuk berempati terhadap orang lain, seperti membantu orang lain yang sedang kesusahan, serta memahami perasaan orang lain. Sehingga orang tua harus terlibat dalam aktivitas sehari-hari anak.
IMPROVEMENT OF SEED VIABILITY AND VIGOR OF SEVERAL RICE VARIETIES WITH VARIOUS PRIMING METHODS
Authors: Putri Sheila Izdihar Hendra , Suwignyo Rujito Agus , Negara Zaidan Panji , Sulaiman Firdaus , Irmawati Irmawati
Published: December 2023

Rice serves as Indonesia's main food source, but inadequate storage conditions can lead to seed deterioration and diminished germination performance. To enhance the viability and vigor of stored seeds, this study explores various priming methods' effects on multiple rice varieties. Employing a completely randomized design (CRD) with two factors, the first factor involves rice varieties (V) categorized by germination ranges: 41–50% (V1 = Toyonishiki, V2 = Yoneshiro), 51–60% (V3 = Jaya, V4 = IR50), 61–70% (V5 = Fortuna, V6 = Sulutan), and 71–80% (V7 = IR 24, V8 = Inpago 5). The second factor is seed priming (P), including control, hydropriming, and osmopriming. Results indicate that priming enhances maximum growth potential, germination percentage, vigor index, growth speed, plumule and radicle length, as well as fresh and dry weight. Hydropriming outperforms osmopriming, particularly in vigor index, growth speed, plumule and radicle length, and dry weight. Priming proves more effective in improving maximum growth potential, germination percentage, vigor index, and growth speed at lower germination percentage ranges (41–60%). The most significant priming-induced increases in radicle length, fresh weight, and dry weight occur in higher germination percentage ranges (61–80%)
Using Proposed Approach to Solve nonlinear Partial Differential Equations
Authors: Hussein Noor A. , Hani Najwan Noori
Published: December 2023

The purpose of this research is to employ a new method to solve nonlinear differential equations to obtain precise analytical solutions and overcome computation challenges without the need to discretize the domain or assume the presence of a small parameter, where the method demonstrated a quick and highly accurate solving nonlinear partial differential equations with initial conditions, in compared to existing methods. The phases of the proposed method are straightforward to implement, highly precise, and quickly converge to the correct result.
The group of splendid Morita equivalences of principal 2-blocks with dihedral and generalised quaternion defect groups
Authors: KARAGÜZEL Çisil , YILMAZ Deniz
Published: December 2023

Let $k$ be an algebraically closed field of characteristic $2$, let $G$ be a finite group and let $B$ be the principal $2$-block of $kG$ with a dihedral or a generalised quaternion defect group $P$. Let also $\calT(B)$ denote the group of splendid Morita auto-equivalences of $B$. We show that
\begin{align*}
\calT(B)\cong \Out_P(A)\rtimes \Out(P,\calF),
\end{align*}
where $\Out(P,\calF)$ is the group of outer automorphisms of $P$ which stabilize the fusion system $\calF$ of $G$ on $P$ and $\Out_P(A)$ is the group of algebra automorphisms of a source algebra $A$ of $B$ fixing $P$ modulo inner automorphisms induced by $(A^P)^\times$.
Normality of Rees algebras of generalized mixed product ideals
Authors: LA BARBIERA Monica , MOGHIMIPOR Roya
Published: December 2023

Let $K$ be a field and $K[x_1,x_{2}]$ the polynomial ring in two

variables over $K$ with each $x_i$ of degree $1$. Let $L$ be the

generalized mixed product ideal induced by a monomial ideal

$I\subset K[x_1,x_2]$, where the ideals substituting the monomials

in $I$ are squarefree Veronese ideals. In this paper, we study the

integral closure of $L$, and the normality of $\mathcal{R}(L)$, the

Rees algebra of $L$. Furthermore, we give a geometric description of

the integral closure of $\mathcal{R}(L)$.
Architectural alchemy: Leveraging Artificial Intelligence for inspired design – a comprehensive study of creativity, control, and collaboration
Authors: Petráková Lenka , Šimkovič Vladimír
Published: December 2023

The research paper contends that Artificial Intelligence (AI) serves as a collaborative partner in architectural design, rather than merely a utility tool. To substantiate this argument, a three-phase, nine-test investigation evaluating the strengths and limitations of two prominent AI platforms: Midjourney AI and Stable Diffusion was undertaken. These platforms synergize human creativity and AI capabilities through features like text prompts and image references, thereby fostering innovative avenues in architecture. Our analysis indicates that Midjourney AI is proficient in generating initial design concepts, largely thanks to its extensive data libraries, but is deficient in design refinement and user control. Conversely, Stable Diffusion empowers designers with greater control via features like ControlNet but sacrifices visual clarity due to its smaller generative models. Both platforms share a common flaw: an overemphasis on aesthetics and shape at the expense of functional understanding. Building upon these empirical observations, the paper outlines strategies for designers to reasonably leverage AI in optimising workflows. It confirms two key hypotheses concerning the interplay of creativity, control, and collaboration, emphasising that both human architects and AI systems benefit from iterative feedback and continuous adaptation. In summary, the study posits that AI is not just an adjunct technology but a transformative force with the capacity to fundamentally alter architectural design processes, paving the way for a new paradigm where human expertise and machine capabilities converge for enriched design outcomes.
Fine art as an integral part of architecture: Political and social aspects of the formation of this synthesis in the 20th century
Authors: Mazalán Peter , Morávková Katarína
Published: December 2023

The theme of the connection of visual arts with architecture, or the cooperation of visual artists with architects in post-war Europe, basically follows two lines: a theoretical line and a political-institutional line. Just as knowledge of the history of art and the history of architecture is necessary in the analysis of this period, knowledge of the political-economic circumstances is necessary in the field of realisations in architecture, because by definition, this public art is a political affair and is not an independent creation. Art in architecture was promoted not only in communist countries (for ideological reasons), but also in Western Europe as an aesthetic cultivation of contemporary architecture. From the mid-1950s onwards, visual art in architectural space appeared more and more frequently, which led to the adoption of legislative measures that regulated and supported this practice. A gradual transformation in the understanding of the task can be observed over the period under review, or the position of public art, presented as part of architecture or public space. This is naturally due to social development. If at the beginning of the 1950s it was a mission to convey ideology and indoctrinate it, in the next stage the focus shifts more towards design with the task of cultivating the environment and creating a certain atmosphere. The study also peripherally explores forms of arts support in the context of other European countries. The idea of integration between art and architecture dates back to the very origins of both disciplines. During the avant-garde movement at the beginning of the twentieth century, it acquired a new meaning and social purpose and became one of the most defining characteristics of modernism. Modernism arose from the expectation of moral and material reconstruction of the world devastated by war, which served as a tool to strengthen collective identity and, consequently, to forge the bond between the city and its inhabitants. Our study traces the development and contexts of the relationship and funding of visual arts in architecture in the Slovak and European context in the 20th century.
Deprecatory Ethnonyms: The Case of Bozgor
Authors: Nagy Imola Katalin
Published: December 2023

In this study, we wish to debate upon some aspects regarding the lexical and semantic implications of ethnonyms. We aim to analyse the origin and semantics of one of two lexemes used by Romanians to refer to Hungarians: bozgor. Besides a meta-analysis of the term (its emergence, meaning), we also refer to archaic usages and meanings (buzguroi, bozga, bozga, bâzga, etc.). We discard previous theories regarding the meaning and origin of the lexeme. Bozgor is a word that is considered an instance of verbal abuse, mockery, or insult, which displays a significant amount of collectively formed, pejorative connotation. Our hypothesis is that it comes from the Hungarian bodza, in its archaic form and meaning (‘border forest’). Bozgor in its earlier versions came to designate, through semantic extension, ‘inhabitant of the border forest’, ‘Hungarian’. The associative meanings which led to the emergence of its present pejorative status (as an ethnic slur) appeared later. The roots we analyse in the article all share a common denominator of meaning and all have led to a large number of words related to the semantic field of forest both in Romanian and in Hungarian.
The Language of Authenticity in Hungarian–Hungarian Encounters
Authors: Barabás Blanka
Published: December 2023

The study of authenticity in sociolinguistics has questioned the notion of the authentic speaker or previous interpretations of place, and it rather focuses on how the social functioning of authenticity is “mediated by and expressed through language” (Lacoste et al. 2014: 4) in different socio-cultural contexts. In linguistic ethnography, the researcher’s positionality also becomes subject to analysis, especially when this has a direct influence on the data obtained. Through the excerpts from interviews conducted at a festival, I aim to discuss the sociolinguistic features of authenticity in the context of the Hungarian–Hungarian encounters. Moreover, the cultural values attributed to the different ways of speaking the Hungarian language are also articulated in these interviews.
Diasporic Imagination and Chronotopes
Authors: Szabó Gergely
Published: December 2023

The ways diasporic groups emerge and diasporic identities are constructed have recently become important research topics in sociolinguistics. However, these works have not paid sufficient attention to the spatial-temporal configurations of diasporic imaginations. In this article, I intend to shed light on the ways differing diasporic imaginations are inscribed on what kind of language-related diasporic activities are created by the diasporic subjects. To answer this question, I draw on the data of an ethnographically informed critical sociolinguistic study of diasporization among Hungarians in Catalonia that I conducted between 2018 and 2022. In the analysis, I compare the chronotopic figures appearing in the life journey narratives of Hungarians in Catalonia with the ways the ideal diasporic subject was imagined in the activities of two salient diasporic organizations. The article points to the fact that diasporic imaginations do not only contain moral guidelines on how diasporic subjects should behave, but they are also determined by the time and the space diasporic subjects inhabit.
Multiple Implantable Cardioverter-Defibrillator Shocks in Ischemic Cardiomyopathy Compels Coronary Vascularization Reassessment
Authors: Guşetu Gabriel , Comşa Horațiu , Mocanu Lorena , Pop Dana
Published: December 2023

The increasing number of patients with heart failure and implantable cardioverter-defibrillators (ICD) has led to a growing of the emergency presentations for ICD internal shocks. Appropriate shocks are sometimes caused by acute events in the course of disease and could be one of the earliest symptoms contributing to the diagnosis and timely treatment of these acute conditions. We present the case of a 64-year-old male patient with ischemic cardiomyopathy, ICD carrier, who presented to the emergency department for recurrent appropriate ICD shocks caused by episodes of polymorphic ventricular tachycardia and ventricular fibrillation. Even if he did not have chest pain, he was referred to cath lab, where the coronary angiography has shown a severe stenosis at the origin of the left anterior descending artery and a moderate stenosis at the proximal left circumflex artery. The percutaneous revascularization of both lesions resulted in the eradication of the sustained ventricular arrhythmias and the improvement of the clinical status. The case argues for the need for coronary vascularization assessment in ICD carrier patients with ischemic heart failure and adequate recurrent shocks, also emphasizing the importance of remote monitoring in early diagnosis of acute conditions in these patients.
Applications of Artificial Intelligence in Cardiovascular Emergencies – Status Quo and Outlook
Authors: Hatfaludi Cosmin-Andrei , Danu Manuela-Daniela , Leonte Horia-Andrei , Popescu Andreea-Bianca , Condrea Florin , Aldea Gabriela-Dorina , Sandu Andreea-Elena , Leordeanu Marius , Suciu Constantin , Rodean Ioana-Patricia , Itu Lucian-Mihai
Published: December 2023

Cardiovascular diseases are the leading cause of death, with many lives being affected by critical emergencies like heart attacks, strokes, and other acute conditions. Recognizing the early warning signs is crucial for highlighting the need for immediate medical attention, especially since a quick intervention may significantly improve short and long-term patient outcome. Artificial intelligence (AI) has become a key technology in healthcare, and especially in the cardiovascular field. AI, and in particular deep learning is well suited for automatically analyzing medical images, signals, and data. Its success rests on the availability of large amounts of curated data, and the access to high performance computing infrastructures for training the deep-learning algorithms. Thus, in cardiovascular care, AI plays a dynamic role in disease detection, predicting disease outcome, and guiding treatment decisions. This review paper details and discusses the current role of AI for the most common cardiovascular emergencies. It provides insight into the specific issues, risk factors, different subtypes of the diseases, and algorithms developed to date, followed by an outlook.
A Severe Case of Hantavirus Cardiopulmonary Syndrome in a Patient Presenting as STEMI
Authors: Dobrica Diana , Udroiu Cristian Alexandru , Galrinho Ruxandra Drăgoi , Borjog Tudor , Vinereanu Dragos
Published: December 2023

Hantavirus cardiopulmonary syndrome (HCPS) is a rare disease caused by Hantaviruses, that are transmitted from rodents to humans through aerosols. In some patients, HCPS can have a severe evolution, with rapid progression to respiratory distress and cardiogenic shock. We present the case of a 56-year-old female patient who was transferred to our hospital with ST-segment elevation myocardial infarction (STEMI) and acute respiratory distress syndrome (ARDS). The coronary angiography showed normal epicardial coronary arteries and the lung computed tomography (CT) raised the suspicion of tracheoesophageal fistula, which was soon refuted by an upper digestive endoscopy. Initially, the evolution was very severe, requiring mechanical ventilation, hemodynamic support, and broad-spectrum antibiotics. Later, sero-logical testing revealed an acute infection with Hantavirus Dobrava type. The patient lives in a rural environment, working in a wheat mill. Despite the severe presentation, the evolution was favorable, with complete remission of the pulmonary and myocardial damage after 2 weeks. We emphasize the importance of HCPS suspicion and specific testing in the early phase of the disease, as well as early admission to an intensive care unit, which is crucial in severe cases and can improve survival in a patient without any specific symptoms or a clear diagnosis.
Bioengineered Small-Diameter Vascular Xenografts as an Alternative to Autologous Vascular Grafting for Emergency Revascularization – a Preliminary Study
Authors: Harpa Marius Mihai , Oltean Sânziana Flămând , Puscas Alexandra Iulia , Truta Raluca , Anitei David Emanuel , Ghiragosian Claudiu , Banceu Cosmin , Movileanu Ionela , Cotoi Ovidiu Simion , Niculescu Raluca , Suciu Horatiu , Simionescu Dan , Hussein Hussam Al
Published: December 2023

Background

Autologous vascular arterial or venous graft are not available in 10-40% of patients, due to vascular pathologies, and the utility of decellularized biological scaffolds would be a solution for those cases. The purpose of this research was to obtain a functional acellular xenograft, prior to in-vivo testing as a vascular graft in an experimental animal.

Materials and method

Two batches of carotid vasculo-nervous bundles were collected from porcine models from a local slaughterhouse. The arterial grafts were dissected and isolated, obtaining carotid arteries with a caliber of 5–6 mm and a length of approximately 10–12 cm. Two decellularization protocols were used, immersion (n = 10) and perfusion (n = 9). The resulting grafts underwent histological examination, DNA analysis, electrophoresis and spectrophotometry.

Results

Due to severe tissue damage and friability, the batch that was decellularized using perfusion was not examined. The histological examination of grafts stained with hematoxylin-eosin and DAPI highlighted the absence of nuclei. Spectrophotometry revealed a 90% decellularization, and electrophoresis of revealed the migration band of the material extracted from the fresh tissue, as well as the absence of migration bands in the case of the material extracted from decellularized tissues.

Conclusion

We successfully used the immersion protocol to obtain a functional acellular vascular graft, in contrast to perfusion decellularization, where intraluminal high pressures damage the extracellular matrix.
Small Area Estimates of Poverty Incidence in Costa Rica under a Structure Preserving Estimation (SPREE) Approach
Authors: Arias-Salazar Alejandra
Published: December 2023

Obtaining reliable estimates in small areas is a challenge because of the coverage and periodicity of data collection. Several techniques of small area estimation have been proposed to produce quality measures in small areas, but few of them are focused on updating these estimates. By combining the attributes of the most recent versions of the structure-preserving estimation methods, this article proposes a new alternative to estimate and update cross-classified counts for small domains, when the variable of interest is not available in the census. The proposed methodology is used to obtain and up-date estimates of the incidence of poverty in 81 Costa Rican cantons for six postcensal years (2012–2017). As uncertainty measures, mean squared errors are estimated via parametric bootstrap, and the adequacy of the proposed method is assessed with a design-based simulation.
Answering Current Challenges of and Changes in Producing Official Time Use Statistics Using the Data Collection Platform MOTUS
Authors: Minnen Joeri , Rymenants Sven , Glorieux Ignace , Tienoven Theun Pieter van
Published: December 2023

The modernization of the production of official statistics faces challenges related to technological developments, budget cuts, and growing privacy concerns. At the same time, there is a need for shareable and scalable platforms to support comparable data, leading to several online data collection strategies being rolled out. Time Use Surveys (TUS) are particularly affected by these challenges and needs as they (while producing rich data) are complex, time-intensive studies (because they include multiple tasks and are administered at the household level). This article introduces the Modular Online Time Use Survey (MOTUS) data collection platform and explains how it accommodates the challenges of and changes in the production of a TUS that is carried out in line with the Harmonized European Time Use Survey guidelines. It argues that MOTUS supports a shift in the methodological paradigm of conducting TUS by being timelier and more cost efficient, by lowering respondent burden, and by improving the reliability of the data collected. Importantly, the modular structure allows MOTUS to be easily deployed for various TUS configurations. Moreover, this versatile structure allows comparable, complex diary surveys (such as the household budget survey) to be performed on the same platform and with the same applications.
Small Area with Multiply Imputed Survey Data
Authors: Runge Marina , Schmid Timo
Published: December 2023

In this article, we propose a framework for small area estimation with multiply imputed survey data. Many statistical surveys suffer from (a) high nonresponse rates due to sensitive questions and response burden and (b) too small sample sizes to allow for reliable estimates on (unplanned) disaggregated levels due to budget constraints. One way to deal with missing values is to replace them by several plausible/imputed values based on a model. Small area estimation, such as the model by Fay and Herriot, is applied to estimate regionally disaggregated indicators when direct estimates are imprecise. The framework presented tackles simultaneously multiply imputed values and imprecise direct estimates. In particular, we extend the general class of transformed Fay-Herriot models to account for the additional uncertainty from multiple imputation. We derive three special cases of the Fay-Herriot model with particular transformations and provide point and mean squared error estimators. Depending on the case, the mean squared error is estimated by analytic solutions or resampling methods. Comprehensive simulations in a controlled environment show that the proposed methodology leads to reliable and precise results in terms of bias and mean squared error. The methodology is illustrated by a real data example using European wealth data.