bluuebunny/crossref_metadata_2025 huggingface dataset:
Rare mixed dementia: A case report
Authors: Chen Xu-Hui , Xia Wen , Ma Jia-Bin , Chen Jiao , Hu Jun , Shi Xin , Yu Jing-Jing , Gong Jia , Liu Lu , Sun Yong-An , Liu Zhi-Gang
Published: January 2025

BACKGROUND

Autoimmune encephalitis (AE) is a rare and recently described neuroinflammatory disease associated with specific autoantibodies. Anti-leucine-rich glioma inactivated 1 (anti-LGI1) encephalitis is a rare but treatable type of AE discovered in recent years. Alzheimer’s disease (AD) is a degenerative brain disease and the most common cause of dementia. AD may undergo a series of pathological physiological changes in brain tissue 20 years before the onset of typical symptoms. The stage of mild cognitive impairment (MCI) that occurs during this process, known as MCI due to AD, is the earliest stage with clinical symptoms. MCI is typically categorized into two subtypes: Amnestic MCI (aMCI) and non-aMCI.

CASE SUMMARY

This report describes a patient with rapid cognitive impairment, diagnosed with anti-LGI1 antibody-mediated AE and aMCI, and treated at Peking University Shenzhen Hospital in March 2023. The patient was hospitalized with acute memory decline for more than 3 months. Both the cerebrospinal fluid and serum were positive for anti-LGI1 antibodies, biomarkers of AD coexisting in the patient’s cerebrospinal fluid. Following combination treatment with immunoglobulin therapy and glucocorticoid, plus inhibition of acetylcholinesterase, the patient’s cognitive function significantly improved. Throughout the 3-month follow-up period, a sustained improvement in cognitive function was observed. The results of serum anti-LGI1 antibody were negative.

CONCLUSION

This case has raised awareness of the possible interaction between AE and early AD (including MCI due to AD), and alerted clinicians to the possibility of concurrent rare and common diseases in patients presenting with cognitive impairment.
Independent risk factors for twin pregnancy adverse fetal outcomes before 28 gestational week by first trimester ultrasound screening
Authors: Zhang Hui-Ping , Bao Li , Wu Jing-Jing , Zhou Yu-Qing
Published: January 2025

BACKGROUND

The incidence of multiple pregnancies has increased worldwide recently and women with a twin pregnancy are at higher risk of adverse outcomes compared with women with a singleton pregnancy. It is important to understand the risk factors for adverse fetal outcomes in twin pregnancy in order to guide clinical management.

AIM

To identify the independent risk factors, including maternal personal and family medical histories and first trimester ultrasound screening findings, for adverse fetal outcomes of twin pregnancy before 28 weeks of gestation.

METHODS

The data of 126 twin pregnancies in our hospital, including pregnancy outcomes, first trimester ultrasound screening findings and maternal medical history, were retrospectively collected. Twenty-nine women with adverse outcomes were included in the abnormal group and the remaining 97 women were included in the control group.

RESULTS

Patients in the abnormal group were more likely to be monochorionic diamniotic (13/29 vs 20/97, P = 0.009), with a higher mean pulsatility index (PI, 1.57 ± 0.55 vs 1.28 ± 0.42, P = 0.003; cutoff value: 1.393) or a higher mean resistance index (0.71 ± 0.11 vs 0.65 ± 0.11, P = 0.008; cutoff value: 0.683) or early diastolic notch of bilateral uterine arteries (UtAs, 10/29 vs 15/97, P = 0.024) or with abnormal ultrasound findings (13/29 vs 2/97, P < 0.001), compared with the control group. Monochorionic diamnioticity, higher mean PI of bilateral UtAs and abnormal ultrasound findings during first trimester screening were independent risk factors for adverse fetal outcomes (P < 0.05).

CONCLUSION

First trimester ultrasound screening for twin pregnancy identifies independent risk factors and is useful for the prediction of fetal outcomes.
Whole-body magnetic resonance imaging provides accurate staging of diffuse large B-cell lymphoma, but is less preferred by patients
Authors: Lambert Lukas , Wagnerova Monika , Vodicka Prokop , Benesova Katerina , Zogala David , Trneny Marek , Burgetova Andrea
Published: January 2025

BACKGROUND

Whole-body magnetic resonance imaging (wbMRI) allows general assessment of systemic cancers including lymphomas without radiation burden.

AIM

To evaluate the diagnostic performance of wbMRI in the staging of diffuse large B-cell lymphoma (DLBCL), determine the value of individual MRI sequences, and assess patients’ concerns with wbMRI.

METHODS

In this single-center prospective study, adult patients newly diagnosed with systemic DLBCL underwent wbMRI on a 3T scanner [diffusion weighted images with background suppression (DWIBS), T2, short tau inversion recovery (STIR), contrast-enhanced T1] and fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) (reference standard). The involvement of 12 nodal regions and extranodal sites was evaluated on wbMRI and PET/CT. The utility of wbMRI sequences was rated on a five-point scale (0 = not useful, 4 = very useful). Patients received a questionnaire regarding wbMRI.

RESULTS

Of 60 eligible patients, 14 (23%) were enrolled and completed the study. The sensitivity of wbMRI in the nodal involvement (182 nodal sites) was 0.84, with 0.99 specificity, positive predictive value of 0.96, negative predictive value of 0.97, and 0.97 accuracy. PET/CT and wbMRI were concordant both in extranodal involvement (13 instances) and staging (κ = 1.0). The mean scores of the utility of MRI sequences were 3.71 ± 0.73 for DWIBS, 2.64 ± 0.84 for T1, 2.14 ± 0.77 for STIR, and 1.29 ± 0.73 for T2 (P < 0.0001). Patients were mostly concerned about the enclosed environment and duration of the MRI examination (27% of patients).

CONCLUSION

The wbMRI exhibited excellent sensitivity and specificity in staging DLBCL. DWIBS and contrast-enhanced T1 were rated as the most useful sequences. Patients were less willing to undergo wbMRI as a second examination parallel to PET/CT, especially owing to the long duration and the enclosed environment.
Uwag kilka dotyczących genezy inicjatywy „Archiwa rodzinne. Zostań rodzinnym archiwistą”
Authors: Stępniak Władysław
Published: January 2025

W artykule przedstawiono spostrzeżenia dotyczące rozwoju zainteresowania archiwami rodzinnymi w Polsce oraz powstania projektu „Archiwa rodzinne. Zostań rodzinnym archiwistą’’. Jako jeden z przełomowych momentów można wskazać uchwalenie w 1983 r. ustawy o narodowym zasobie archiwalnym i archiwach oraz wprowadzonej w nim instytucji niepaństwowego zasobu archiwalnego. Nie bez znaczenia jest jednak również brak odpowiednich ram prawnych, które regulowałyby współpracę pomiędzy archiwami państwowymi a sektorem niepublicznym. Istotna dla omawianego zagadnienia jest także działalność archiwów społecznych, w tym Ośrodka KARTA. Odnotować należy również wzrost zainteresowania dokumentacją osobistą i rodzinną wynikający z poszukiwania świadectw pracy oraz z popularyzowania się genealogii. Zwiększone zainteresowanie archiwami rodzinnymi doprowadziło do utworzenia punktów konsultacyjnych w archiwach państwowych czy zorganizowania akacji „Zostań rodzinnym archiwistą”. Powołana została również Sekcja Archiwistów Rodzinnych w ramach Stowarzyszenie Archiwistów Polskich.
Kilka uwag o wzajemnych relacjach archiwów rodzinnych i nierodzinnych
Authors: Chorążyczewski Waldemar
Published: January 2025

Wartością jest różnorodność dziedziny archiwalnej. Dla jej osiągnięcia celowe jest istnienie możliwie licznych archiwów rodzinnych, z których każde jest spojrzeniem na świat z oryginalnej, swoistej, subiektywnej perspektywy. Dobro dziedziny archiwalnej wymaga, by archiwa rodzinne rozwijały się i krzepły, pozostając własnością prywatną, a nie były tylko dostarczycielami materiałów dla innych archiwów, a więc państwowych, społecznych czy wyznaniowych. Archiwa państwowe muszą jednak być w pogotowiu, by w razie potrzeby udzielić pomocy, zabezpieczyć także archiwalia rodzinne posiadające walor historyczny. Modele i pola współpracy lub współistnienia archiwów rodzinnych z archiwami nierodzinnymi mogą być różne. Archiwiści etatowi zatrudnieni w archiwach publicznych mogą stać się modelowymi, oddziałującymi swoim przykładem, twórcami własnych archiwów rodzinnych. Archiwa rodzinne w pewnym istotnym stopniu mogą składać się z materiałów pozyskanych w wyniku kwerendy w archiwach instytucjonalnych. Archiwalia proweniencji rodzinnej stawały i stają się częścią państwowego zasobu archiwalnego, z drugiej strony materiały obrazujące działalność publiczną na różnych polach w naturalny sposób znajdują się w archiwach rodzinnych. Archiwiści rodzinni coraz szerzej angażować się będą w działania crowdsourcingowe na rzecz archiwów publicznych. Relacje łączące archiwa różnych typów spajają dziedzinę archiwalną w jedną całość i stanowią merytoryczne uzasadnienie dla koncepcji narodowego zasobu archiwalnego i narodowego dziedzictwa archiwalnego. Z tego powodu zajmowanie się archiwami rodzinnymi, troska o nie, jest jednocześnie działaniem na rzecz całego narodowego dziedzictwa archiwalnego.
Hubungan Movement Behavior dengan Health Related Quality of Life pada Siswa/I Smp Tarakanita Citra Raya selama Pandemi Tahun 2021
Authors: Mutiara Firdani , Herwanto Herwanto
Published: January 2025

Movement behavior is a combination of motion behavior that includes physical activity, sleep duration, and sedentary behavior. However, during the COVID-19 pandemic, there were several changes in human movement behavior within 24 hours due to the implementation of policies to break the chain of transmission. The impact caused by the implementation of social distancing causes limited human movement that affect the health-related quality of life for each individual, especially on indicators of children's physical, mental and social health. This study aims to see the relationship between movement behavior and health related quality of life in students of SMP Tarakanita Citra Raya during the 2021 pandemic using an analytical method with a cross sectional design. This research was conducted at SMP Tarakanita Citra Raya with 239 respondents consist of 88 male students and 151 female students. Data were collected using the GPAQ questionnaire, sleep duration, and KIDSCREEN-27 which were filled out online in December 2021. The results of this research indicate the characteristics of movement behavior that 74.06% of students do physical activity less than 1680 MET-minutes/week, 65.7% of students have a sleep duration of 6-8 hours per day, 29.29% of students perform sedentary behavior 3-4 hours, 47.28% of students do not meet the recommendation of movement behavior, and 84.94% of students have a good HRQoL. Statistical tests based on the Pearson correlation showed that there was a very weak relationship between physical activity and health related quality of life with a correlation coefficient of 0.177 with p value of 0.006 and the correlation between sleep duration and health related quality of life with a correlation coefficient of 0.190 and a p value of 0.003.
Surge Protection Methods Used for Electrical Equipment
Authors:   1 Institutul Național de Cercetare-Dezvoltare pentru Inginerie Electrică ICPE-CA București, Splaiul Unirii Nr. 313, 030138, Sectorul 3, București, Romania, PÎSLARU-DĂNESCU Lucian , STOICA Victor ,   1 Institutul Național de Cercetare-Dezvoltare pentru Inginerie Electrică ICPE-CA București, Splaiul Unirii Nr. 313, 030138, Sectorul 3, București, Romania, BĂDIC Mihai ,   1 Institutul Național de Cercetare-Dezvoltare pentru Inginerie Electrică ICPE-CA București, Splaiul Unirii Nr. 313, 030138, Sectorul 3, București, Romania, LIPAN Laurențiu Constantin ,   2 Universitatea Națională de Știință și Tehnologie POLITEHNICA București, Splaiul Independenţei Nr. 313, 060042, Sectorul 6, București, Romania
Published: January 2025

The protection system of an electrical equipment is very important because it ensures its proper and continuous functioning. The overvoltages protection is a part of the protection system, particularly very important. This study highlights a number of methods, which can be applied to protect the electrical circuits in case of the occurrence ofovervoltages. Overvoltages caused by lightning strikes can lead to major faults that can appear in electrical circuits or can completely damage them. The paper also presents the combined methods of protection from overvoltages due to the unwanted overvoltages due to lightning strikes, applicable for all types of the electrical equipments with details and arguments for each method used. It also presents the methods of testing surge arresters/varistors with metal oxides, the measurement schemes together with the devices used and the results obtained. It is highlighted by electrical measurements the response time of varistors to transient conditions, that has a significantly impact of the effectiveness surge protection.
SELECTION OF NATIVE AND CONVENTIONAL COTTON (Gossypium hirsutum L.) GENOTYPES BASED ON FIBER QUALITY
Authors: Hernández-Leal Enrique , Franco-Gaytán Iván , Bonilla-Barrientos Olga , Hernández-Bautista Aurelio , Reyes-González Arturo , Toledo-Aguilar Rocío , López-Morales Fernando
Published: January 2025

Cotton (Gossypium hirsutum L.) is the main source of natural textile fibers in the world. Properties such as short fiber stickiness, trash content, color, fiber length, and fineness are fiber quality characteristics that determine pricing, profitability, and marketability. Therefore, the description and measurement of all its characters is indispensable to ensure high-quality cotton fiber production. The objective of this work was to evaluate, select, and characterize cotton germplasm (Gossypium spp.) with high fiber quality in a randomized complete block experimental design with three replications and 15 plants per replication for the generation of new conventional varieties, based on the hypothesis that genotypes with excellent fiber quality can compete with currently commercialized transgenic varieties. The evaluation was conducted in a greenhouse during the 2019 autumn-winter agricultural cycle at La Laguna Experimental Field of the National Institute of Forestry, Agricultural and Livestock Research (INIFAP-CELALA). Two harvests were carried out, where a random sample of 60 buds was taken from each genotype and the fiber was separated from the seed. A total of 150 g of fiber was taken from each sample and measured for length, strength, fineness, spinnability index, uniformity index, short fiber index, elongation, reflectance, and yellow +b content. Analysis of variance (ANOVA) showed significant differences between genotypes for all variables evaluated, mainly in fiber length, strength, and fineness. The results indicate that TOA-17, TOA-18, GOS-17, GOS-21, and FZ-13 CLON showed outstanding characters of similar quality to the commercial control (DeltaPine®), making these genotypes suitable for the requirements of the textile industry.
Escarificación y establecimiento in vitro de semilla de mezquite
Authors: González-Domínguez Janeth Guadalupe , Pérez Álvarez Sandra , Rivas-Lucero Bertha Alicia , Antonieta Pérez Jerónima , Triana Anzures Daniel
Published: January 2025

En la actualidad existe una sobre explotación irracional de los recursos naturales de las plantas nativas de las zonas semiáridas y áridas de México, especialmente del mezquite (Prosopis sp.). Esto lleva a realizar estudios para lograr reforestar dichas zonas, por lo que el objetivo de este trabajo fue proponer una metodología de escarificación y establecimiento in vitro de semillas de mezquite. Se emplearon tres tratamientos de escarificación, dos físicos, agua destilada a 250 °C durante 30 minutos (T1) y lijar la semilla con diferentes tipos de lija (T2) y el último tratamiento químico utilizando H2SO4 concentrado durante 15 minutos (T3), los tratamientos 2 y 3 se combinaron con la escarificación mecánica al cortar la parte apical de la semilla antes de la siembra y las semillas del T2 después de lijarlas se sumergieron en agua durante 24 h. Todas las semillas después de la escarificación se desinfectaron con hipoclorito de sodio al 2%, para posteriormente ser sembradas en medio agar-agua para su establecimiento in vitro. Se llevaron a cabo tres repeticiones de cada tratamiento utilizándose 50 semillas por cada uno. Los resultados obtenidos mostraron que los tratamientos de escarificación más efectivos (100% de germinación) fueron lijar las semillas con lija grado 80 y sumergirlas en agua durante 24 h y tratar las semillas con H2SO4 durante 15 min y antes de la siembra, cortarlas con el bisturí. Estos resultados son un primer paso para establecer la metodología de micropropagación y conservación in vitro de la especie Prosopis sp.
Evaluación de la incubabilidad del huevo fértil en aves de corral en la zona de Citlaltépetl, Veracruz
Authors: Borbolla-Pérez Verónica , Nieto Rosaliano Sergio Omar , Gutiérrez Molina Rigoberto , Gonzales Vicencio Gil Josué , Mendo Muñoz Rubén de la Paz
Published: January 2025

La industria avícola en México es una de las más importantes del sector agropecuario debido a que aporta gran parte de la producción de carne de pollo y de huevo. Un aspecto muy importante es la capacidad de incubabilidad de los huevos. Esta puede ser afectada por diversos factores o condiciones de manipulación y almacenamiento. En este trabajo se evaluaron diversos aspectos asociados con la capacidad de incubabilidad del huevo fértil en aves de corral de traspatio en la zona de Citlaltépetl, Veracruz. Los resultados mostraron que los huevos son grandes o medianos con un peso promedio de 56 gramos. El 80 % de los huevos colectados mostraron estar limpios y libre de manchas o restos fecales. Estos mostraron una estructura densa y elevada alrededor de la yema, con buen aspecto y coloraciones desde amarillo pálido a naranja reflejando la frescura de los huevos. El porcentaje de viabilidad fue del 80.35 % y el de incubabilidad del 71.74%. El porcentaje de huevos eclosionados fue del 80.35% y de los huevos no eclosionados fue del 19.65%. Los resultados del análisis microbiológico de los huevos no eclosionados mostraron la presencia de Coccidioides posadassi, Escherchia coli y de Salmonella spp. Estos resultados son importantes debido a que, en la industria avícola, una buena incubación comienza desde la selección de los huevos en las granjas mostrando que los sistemas de producción de traspatio pueden ser una opción para complementar la producción en el estado de Veracruz.
Trajeto: Ruas por onde já andaram
Authors: Simões José Daniel Craidy , Rodrigues Felipe da Silva
Published: January 2025

Porto Alegre apresentou um modelo inicial de ocupação de seus territórios que seguiu os moldes de uma urbanização tradicionalmente portuguesa, caracterizadapela adaptação das vias à topografia, hidrografia e ao ambiente físico local. No bairro Centro Histórico, que corres-ponde ao núcleo original da cidade, ainda se encontram ruas e praças remanescentes desse primeiro traçado. Este bairro é caracterizado por três longas vias principais que se iniciam na extremidade da península e se estendem em direção ao interior do território, sendo atravessada por ruas perpendiculares ao longo de toda sua extensão. Uma dessas ruas, originalmente delineada ao longo da margem norte da península, continua sendo referida como Rua da Praia, embora sua denominação oficial tenha sido alterada para Rua dos Andradas, e a referida praia não mais exista devido aos aterros realizados ao longo dos séculos XIX e XX.
Trajeto: Da Praça da Matriz até os Altos da Praia
Authors: Rodrigues Felipe da Silva
Published: January 2025

A Praça da Matriz foi o lugar de fundação oficial da cidade de Porto Alegre, no Alto da Praia, por meio de uma provisão régia que criou a Freguesia de São Francisco do Porto dos Casais em 26 de março de 1772. A praça configura-se como um lugar central da cidade. A Praça da Matriz apresenta a centralidade da cidade, nos termos de Kevin Lynch (1999), que diz que a zona do centro está cheia de aspectos marcantes com os quais as pessoas criam uma forte ligação a um passado histórico ou a experiências anteriores. Quanto à centralidade simbólica, a praça abriga a Catedral Metropolitana (religiosidade), o Palácio Piratini (executivo), a Assembleia Legislativa (legislativo), o Palácio da Justiça (judiciário) e o Theatro São Pedro (culturalidade). Ao longo do tempo, o espaço da praça serviu de palco para diversas práticas urbanas e formas de sociabilidades. Desde sempre, a praça ocupa o lugar de palco de resistência, tanto na Legalidade em defesa da posse de João Goulart em 1961 quanto, hoje em dia, como espaço para protestos e reivindicações de organizações de classes sindicais.
Trajeto: Caminhos dos sebos e antiquários
Authors: Gutterres Anelise dos Santos
Published: January 2025

O capítulo relata o percurso sugerido pela autora para conhecer sebos e antiquários na cidade de Porto Alegre, percorrendo ruas do centro da cidade em direção ao Bairro Cidade Baixa. Visando promover o comércio e o turismo, os antiquários, nos sábados e dias de sol, ex-põem seus produtos nas ruas criando um ambiente colorido e famili-ar. As imagens retratam as ruas sugeridas e os casarios de época.
Ausbau der Biodiversität
Authors: Pehl Patrick
Published: January 2025

Berlin. Die Europäische Kommission will den Schutz der biologischen Vielfalt in der Gemeinsamen Agrarpolitik (GAP) stärker verankern.
Eher trübe Aussichten
Authors: Deininger Olaf
Published: January 2025

Frankfurt a.M. Nach starken Wachstumsraten in den vergangenen Jahren sah es in der Landtechnikbranche zuletzt schlecht aus. Die Aussichten dürften auch 2025 eher düster sein.
Analysis of Household Water Demand and Supply Challenges in Mubi Metropolis, Adamawa State-Nigeria: A Search for a Sustainable Water Security Solution
Authors: Boniface Godwin , Jibrilla Adamu , Yahaya Adamu
Published: January 2025

This study assesses the water demand and supply situation in Mubi Metropolis, Adamawa State, Nigeria, with a focus on identifying sustainable water security solutions. The study deployed the use of mixed method in order to achieve its specific objectives. Findings reveal a moderate willingness to pay (WTP) for improved water services, averaging ₦15,650 (Math input error
14.19) and reaching up to ₦48,000 ($28.24), constitutes 9.42% of income—far exceeding the WHO benchmark of 3-5% and imposing significant financial strain, particularly on low-income households. Per capita water consumption stands at 28.93 liters, far below the WHO-recommended 100 liters, highlighting a severe deficit of 71.07 liters per person. Income disparity and high poverty levels exacerbate water insecurity, while dissatisfaction with water quality persists, as most households rely on costly and inconsistent private boreholes (mai-ruwa) for supply. Key drivers of water demand challenges include population growth, seasonal variability, socio-economic activities, and the presence of institutions, compounded by weak policy enforcement and the effects of conflict. To address these challenges, the study recommends investment in public water infrastructure, income-based pricing, cross-subsidization for low-income households, and community-based water schemes. Additionally, improving water quality through treatment plants, fostering public-private partnerships, and strengthening policy enforcement are crucial. Enhancing resilience to seasonal variability and implementing conflict-sensitive interventions are also vital.
Kepraktisan E-Modul Lingkaran Untuk Meningkatkan Kemampuan Pemahaman Matematis Peserta Didik
Authors: Husna Laili Nurul , Ulya Himmatul , Purwaningrum Jayanti Putri
Published: January 2025

Masalah yang dialami peserta didik saat ini adalah ketidakmampaun mereka dalam memahami materi yang diajarkan oleh guru yang disebabkan oleh minimnya inovasi guru dalam pembelajaran. Penelitian ini bertujuan untuk menguji kepraktisan penerapan e-modul lingkaran untuk meningkatkan kemampuan pemahaman matematis peserta didik. Kami menggunakan model pengembangan ADDIE dengan melibatkan peserta didik kelas VIII MTs. NU Raudlatus Shibyan. Subjek penelitian yaitu guru matematika dan 30 peserta didik kelas VIII-B sebagai kelas eksperimen yang dalam proses pembelajarannya menggunakan e-modul lingkaran. Instrumen yang digunakan berupa angket respon kepraktisan media pembelajaran e-modul lingkaran guru dan angket respon kepraktisan media pembelajaran e-modul lingkaran peserta didik. Hasil penelitian menunjukkan bahwa sebagian besar peserta didik memberikan respon positif terhadap pengembangan media pembelajaran e-modul lingkaran untuk meningkatkan kemampuan pemahaman matematis peserta didik.
GAULL (Game Edukasi Wordwall) dalam Meningkatkan Kemampuan Pemecahan Masalah Matematis Berdasarkan Minat Belajar Peserta Didik
Authors: Aghata Frecelia , Nasution Sri Purwanti , Anggoro Bambang Sri
Published: January 2025

Perkembangan teknologi informasi telah melahirkan berbagai inovasi pada dunia pendidikan, salah satunya adalah game edukasi. Tujuan penelitian ini untuk mengetahui bagaimana media pembelajaran GAULL (Game Edukasi Wordwall) meningkatkan kemampuan pemecahan masalah matematis berdasarkan minat belajar peserta didik. Penelitian ini menggunakan pendekatan penelitian eksperimen semu dan bersifat kuantitatif. Populasi pada penelitian ini yaitu peserta didik kelas VII SMP 23 Bandar Lampung. Teknik cluster random sampling digunakan dalam pengambilan sampel. Kelas VIII A sebagai kelas eksperimen dalam penelitian ini, sedangkan kelas VIII C berperan sebagai kelas kontrol. Penelitian ini menggunakan tes dan angket untuk mengumpulkan data. Pada tingkat signifikansi 0,05 digunakan uji Anova dua arah (Two Way Anova) untuk analisis data. Kesimpulan diambil dengan menggunakan program SPSS 26 dan hasil perhitungan uji ANOVA dua arah mendapatkan (1) GAULL (Game Edukasi Wordwall) mempengaruhi kemampuan pemecahan masalah matematis dengan nilai p-value = 0,003 sehingga H0 ditolak. (2) Minat mempengaruhi kemampuan pemecahan masalah matamatis dengan nilai p-value = 0,012 , sehingga H0 ditolak  (3  Tidak terdapat interaksi antara GAULL (Game Edukasi Wordwall) dan minat belajar siswa pada kemampuan pemecahan masalah matematis nilai p-value = 0,948  sehingga H0 diterima. Penelitian ini menyimpulkan bahwa penggunaan game edukasi efektif dan mampu menciptakan suasana belajar yang menyenangkan, sehingga tercapai tujuan pembelajaran yang diharapkan.
Analisis Pemahaman dan Folding Back Siswa Menurut Teori Pirie Kieren pada Konsep Deret Aritmetika
Authors: Nurussofa Reza , Santosa Cecep Anwar Hadi Firdos
Published: January 2025

Masalah aritmetika merupakan salah satu permasalahan yang sulit bagi siswa, sehingga perlu kemampuan pehamanan matematis yang memadai untuk menyelesaikan masalah tersebut. Penelitian ini bertujuan untuk menganalisis pemahaman dan folding back siswa menurut teori Pirie Kieren pada konsep deret aritmetika. Kami menggunakan pendekatan kualitatif deskriptif dengan melibatkan 12 siswa kelas X B MAN 1 Kota Cilegon. data dikumpulkan melalui instrumen tes dan wawancara. Selanjutnya kami menganalisis data dengan menggunakan kerangka kerja model Miles & Huberman yakni reduksi data, penyajian data dan penarikan kesimpulan.  Hasil penelitian menunjukkan bahwa siswa dengan kemampuan pemahaman matematis tinggi memiliki pemahaman yang baik dan mampu memenuhi semua lapisan pemahaman menurut teori Pirie Kieren yaitu primitive knowing, image making, image having, property noticing, formalising, observing, structuring, dan inventising dan mengalami dua bentuk folding back yaitu bekerja pada lapisan lebih dalam dan mengumpulkan lapisan lebih dalam. Siswa dengan kemampuan  pemahaman matematis sedang memiliki pemahaman yang cukup baik dan mampu memenuhi tiga sampai tujuh lapisan pemahaman menurut teori Pirie Kieren.yaitu primitive knowing, image making, image having, property noticing, formalising, dan observing. dan structuring dan mengalami dua bentuk folding back yaitu bekerja pada lapisan lebih dalam dan mengumpulkan lapisan lebih dalam. Siswa dengan kemampuan  pemahaman matematis rendah memiliki pemahaman yang kurang baik dan hanya memenuhi satu sampai tiga lapisan pemahaman menurut teori Pirie Kieren yaitu primitive knowing, image making, dan  image having dan hanya mengalami satu bentuk folding back yaitu bekerja pada lapisan lebih dalam
Analisis Kemampuan Number Sense Peserta Didik dalam Menyelesaikan Soal Numerasi AKM Ditinjau dari Kecerdasan Logis Matematis
Authors: Santi Rosidah  , Hidayat Edy , Patmawati Hetty
Published: January 2025

Minimnya penelitian yang meneliti kemampuan number sense menunjukkan perlunya kajian lebih mendalam di bidang ini. Penelitian ini penting karena number sense merupakan dasar numerasi yang esensial dalam kehidupan. Dengan menganalisis kemampuan number sense siswa dalam menyelesaikan soal AKM ditinjau dari kecerdasan logis matematis, penelitian ini dapat mengungkap hubungan keduanya. Penelitian ini bertujuan untuk mendeskripsikan kemampuan number sense peserta didik dalam menyelesaikan soal numerasi model asesmen kompetensi minimum ditinjau dari kecerdasan logis matematis. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan deskriptif. Teknik pengumpulan data terdiri dari penyebaran angket kecerdasan logis matematis, tes kemampuan number sense, dan wawancara. Subjek penelitian dipilih dari peserta didik kelas VIII-D SMP Negeri 1 Ciawi yang berjumlah 29 peserta didik. Teknik analisis data yang digunakan terdiri dari reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian diperoleh bahwa subjek dengan kecerdasan logis matematis tinggi mampu memenuhi semua indikator kemampuan number sense yaitu mengidentifikasi sifat berurutan dari bilangan-bilangan dan keteraturan pada sistem bilangan, memilih estimasi terdekat hasil operasi bilangan dan merepresentasikannya, mengidentifikasi karakteristik hasil operasi bilangan dan implikasinya pada berbagai jenis bilangan, dan menilai kewajaran hasil perhitungan. Subjek dengan kecerdasan logis matematis sedang mampu memenuhi tiga indikator kemampuan number sense yaitu mengidentifikasi sifat berurutan dari bilangan-bilangan dan keteraturan pada sistem bilangan, memilih estimasi terdekat hasil operasi bilangan dan merepresentasikannya, dan menilai kewajaran hasil perhitungan. Subjek dengan kecerdasan logis matematis rendah tidak mampu memenuhi semua indikator kemampuan number sense.
Comprehensive multi-hazard risk assessment in data-scarce regions. A study focused on Burundi
Authors: Delves Jess , Renner Kathrin , Campalani Piero , Piñón Jesica , Schneiderbauer Stefan , Steger Stefan , Moreno Mateo , Oterino Maria Belen Benito , Perez Eduardo , Pittore Massimiliano
Published: January 2025

Abstract. The increased occurrence of multiple cascading and compounding hazards underlines the importance of integrated- and multi-hazard-based assessment approaches for the development of thorough strategies towards disaster resilience. To this purpose, a national-scale multi-hazard risk assessment was conducted between September 2020 and December 2021 for Burundi, focusing on the natural hazards flooding, torrential rains, landslides, earthquakes, and strong winds. This integrated multi-hazard assessment resulted in comparable nationwide provincial and commune-scale Annual Average Loss (AAL) values, further aggregated to provide a preliminary estimate of the resulting overall risk. Historical climatology (1990–2019) was computed, and a preliminary evaluation of the potential effects of climate change in the future period (2020–2049) was carried out. Data availability and reliability were challenging throughout the whole assessment and were tackled by integrating local authoritative sources with international and global resources. An up-to-date exposure model was implemented and complemented by an indicator-based socioeconomic vulnerability assessment. Furthermore, a data-driven statistical susceptibility model for shallow landslides has been derived at national scale. The consequent multi-hazard risk assessment provides an approximate picture of the expected nationwide risk distribution in economic terms. The results should support the identification of priority areas and actions for disaster risk management.
Analyzing vegetation effects on snow depth variability in Alaska's boreal forests with airborne lidar
Authors: May Lora , Stuefer Svetlana , Goddard Scott , Larsen Christopher
Published: January 2025

Abstract. Lidar-derived snow depth and canopy height maps were used to analyze snow depth spatial variability at a boreal forest site in Alaska. High resolution (0.5 m) airborne lidar data were acquired during NASA’s SnowEx Alaska field campaigns during peak snow-on accumulation (March 2022) and snow-off (May 2022). The impact of canopy height on snow distribution was studied at the Caribou Poker Creeks Research Watershed, located north-east of Fairbanks, Alaska, U.S. Ground-based snow depth measurements were collected concurrently with the March snow-on lidar survey and were compared to collocated lidar-derived snow depths. The comparison between ground-based and lidar-derived snow depths produced a bias of 2.0 cm and a root mean square error (RMSE) of 12.0 cm. The lidar snow depth map showed a mean snow depth of HS = 98 cm and SD = 15 cm for the study site. The influence of vegetation on end-of-winter snow depth distribution was analyzed using three canopy height classes: 1) forest, 2) shrub and short stature trees (SSS), and 3) treeless. Results showed a statistically significant difference in median snow depths across canopy height classes, with the largest significant difference between forest and treeless (12–14 cm) and between forest and SSS (8–14 cm). This difference in snow depths is equivalent to an SWE range of 0.02–0.03 m. This study provides insights into the spatial variability of snow depths in Alaska’s boreal forests by using ground-based measurements to evaluate the accuracy of lidar to estimate snow depths in a boreal forest ecosystem. The results of this research can be used to assist water and resource managers in determining best practices for estimating snow depth and its spatial variability in the boreal forest of Alaska.
Performance assessment of the IASI-O3 KOPRA product for observing midlatitude tropospheric ozone evolution for 15 years: validation with ozone sondes and consistency of the three IASI instruments
Authors: Dufour Gaëlle , Eremenko Maxim , Cuesta Juan , Ancellet Gérard , Gill Michael , Maillard Barras Eliane , Van Malderen Roeland
Published: January 2025

Abstract. The Infrared Atmospheric Sounding Interferometer (IASI) has been monitoring the atmosphere for operational meteorology and atmospheric composition studies since 2007 with a succession of three instruments aboard the Metop-A (2006–2021), Metop-B (2012-) and Metop-C (2018-) missions. One of the key species monitored is ozone (O3). This study assesses the quality of the regional IASI-O3 KOPRA product, version v3.0, and the consistency of the three IASI instruments, IASI-A, IASI-B, and IASI-C for timeseries and trend analyses. The IASI-O3 KOPRA products for IASI-A, IASI-B and IASI-C. IASI-B show a very good agreement and consistency, better than 1 %, for the tropospheric ozone column (TrOC) and several partial columns (surface-450 hPa, surface-300 hPa) over the three domains, Europe, North America, and East Asia of this study. For the quality assessment and trend analyses, we combine the ozone products derived from IASI-A (2008–2018) and IASI-B (2019–2022) without any bias correction. The comparison with homogenized ozone sondes for six northern midlatitude stations reveals a small negative bias of about 3–6 % of the IASI-O3 KOPRA products in the troposphere for both profiles and columns with rather good correlation between 0.7 and 0.9 and an error estimate about 15–17 % (compared to sondes smoothed with averaging kernels (AKs)). The ozone variability is also well reproduced for all the partial columns with a slight underestimation of about 10 % for the TrOC. Based on the comparison with the ozone sondes, we identified a temporal drift (of about -0.06 ± 0.02 DU/yr in average), while more pronounced in summer, for three different ozone columns (TrOC, surface-450 hPa, surface-300 hPa). However, a significant variability of the estimated drifts depending on the sample of ozone sonde sites is remarked, that does not allow its use for correcting the IASI ozone product timeseries over broad domains. Whereas the upper tropospheric ozone trends are mainly positive or undefined, the lower tropospheric ozone trends are mainly systematically negative. The regions the most affected by negative trends are the Mediterranean, Western North America, Eastern North America and East Asia. Compensations between lower and upper tropospheric trends prevent the identification of any specific long-term behaviour for TrOCs over the three domains. The negative tropospheric ozone column anomalies in the 2020–2022 (post-COVID19) time period observed in our northern hemisphere mid-latitude domains slightly impact the estimated trends but do not change the conclusions stressed before.
Understanding Changes in Iceland’s Streamflow Dynamics in Response to Climate Change
Authors: Helgason Hordur Bragi , Gunnarsson Andri , Sveinsson Óli Grétar Blöndal , Nijssen Bart
Published: January 2025

Abstract. The hydrological cycle in high-latitude regions is undergoing significant changes due to climate change. Iceland, with its extensive data from undisturbed catchments, provides a unique opportunity to study these changes in snow- and glacier-melt dominated regions. The country's heavy reliance on hydropower, without any connections to other electricity markets, makes understanding these changes crucial. Recent decades have seen warming outpace global warming trends in Iceland, along with increased precipitation, reduced glacier mass, rising soil temperatures and expanded vegetation cover. The impacts of these environmental shifts on streamflow remain largely unexplored. Our study uses the LamaH-Ice dataset, which includes streamflow observations, atmospheric forcings from climate reanalyses, and catchment characteristics, to investigate changes in Iceland's streamflow dynamics over recent decades. We first examine the long-term variability in streamflow and its primary drivers, correlating it with major climate indices. We then analyze trends during the last 30 and 50 years in annual, seasonal, and daily streamflow volumes, the timing of the spring freshet, and extreme flow conditions, linking these changes to environmental conditions and catchment attributes. Results show high inter-annual variability, decadal fluctuations, and strong correlations with the Arctic Oscillation, as reported in earlier studies. Streamflow trends vary by location and river type, with increased precipitation driving higher annual average flows in most rivers, while summer flows have decreased in most rivers, which is linked to lower summer precipitation and increased evapotranspiration. This study is the first to report coherent regional and seasonal trends in Icelandic streamflow. Annual low flows have increased in most rivers. Glacial rivers show positive streamflow trends during the last 50 years, but negative trends during the last 30 years. The findings offer crucial insights into Iceland's hydrological changes amid rapid climatic shifts, with broader implications for reservoir operations and water resources management. This study enhances our understanding of Icelandic hydrology and contributes to global knowledge on climate-induced hydrological changes.
An automated approach for developing geohazard inventories using news: Integrating NLP, machine learning, and mapping
Authors: Avcıoğlu Aydoğan , Demir Ogün , Görüm Tolga
Published: January 2025

Abstract. Spatiotemporal inventories of natural hazards are essential for comprehending the building of resilient societies; yet, restricted access to global inventories hinders the advancement of mitigation strategies. Consequently, we developed an approach that enhances the capability of online newspapers in the creation of natural hazard inventory by utilizing web scraping, natural language processing (NLP), clustering, and geolocation of textual data. Here, we use the online newspapers from 1997 to 2023 in Türkiye to employ our approach. In the first stage, we retrieved 15,569 news by using our tr-news-scraper tool considering wildfire, flood, landslide, and sinkhole-related natural hazard news. Further, we utilized NLP preprocessing approaches to refine the raw texts obtained from newspaper sources, which were subsequently clustered into 4 natural hazard groups resulting in 3928 news. In the final stage of the approach, we developed a method, which geolocates the news using the Open Street Map (OSM) Nominatim tool, ending up with a total of 13940 natural hazard incidents derived from news comprising multiple incidents across various locations. As a result, we mapped 9609 floods, 1834 wildfires, 1843 landslides, and 654 sinkhole formation incidents from online newspaper sources, showing spatiotemporally consistent distribution with existing literature. Consequently, we illustrated the potential of online newspaper articles in the development of natural hazard inventories with our approach from the web sources as text data to map by leveraging the capabilities of web scraping, NLP, and mapping techniques.
Aerosol single scattering albedo derived by merging OMI/POLDER satellite products and AERONET ground observations
Authors: Dong Yueming , Li Jing , Zhang Zhenyu , Zhang Chongzhao , Li Qiurui
Published: January 2025

Abstract. Accurate global aerosol single scattering albedo (SSA) data is critical for assessing aerosol radiative effects and identifying aerosol composition. However, current satellite-based SSA retrievals are both limited and highly uncertain, whereas the more accurate ground-based observations lack global coverage. In this study, we employ an Ensemble Kalman Filter (EnKF) data synergy technique to construct two monthly mean SSA datasets over land by synergizing OMI and POLDER with AERONET observations respectively, namely Merged-OMI and Merged-POLDER dataset. The background ensemble is constructed with 231/106 members using all monthly mean OMI/POLDER SSA available to represent the variability of SSA field. Then AERONET measurements are assimilated into each satellite dataset using the EnKF approach. The merged datasets show substantial improvements against the original products, with the correlation coefficient increased by up to 100 %, and the mean absolute bias (MAB) and root mean square error (RMSE) reduced by more than 30 % compared with AERONET results. Cross validation using independent AERONET observations shows an average increase of 70 % in correlation, 15 % reduction in RMSE and 14 % reduction in MAB for Merged-OMI dataset, and similar although weaker improvement for Merged-POLDER mainly due to the smaller sample size.  This study confirms the effectiveness of the EnKF technique in extending the information obtained from ground stations to larger regions. The two merged datasets generated in this study can offer more accurate SSA estimates for assessing aerosol radiative forcing and improving climate modeling, serving as an important resource for advancing global aerosol research.
Palhaçaria: o artesanato construindo pontes entre design, cultura e impacto social
Authors: Pereira de Andrade Ana Beatriz , Fúrio Melara Lucas , Silva Jaine
Published: January 2025

Este texto tem como objetivo relatar, sob a perspectiva do Design, o processo de desenvolvimento da exposição “Palhaçaria”, um projeto expográfico construído para salvaguardar o patrimônio de um instituto dedicado ao brincar, no campo dos objetos de artesanato popular brasileiro que diretamente dialogam com as brincadeiras de infância. O desenvolvimento do projeto considera os campos multidisciplinares da Curadoria, Design Editorial, Design Gráfico, Design de Produto, Produção Cultural, Captação e Gestão de Recursos. A metodologia participativa do Design Social orientou o roteiro de projeto, assim como a Arquitetura de Exposições proposta pela obra de Lina Bo Bardi e Gisela Magalhães orientou a expografia, considerando também a Tecnologia Social da Memória para o processo de catalogação e a exibição dos itens da exposição. O propósito da ação cultural com o acervo é a de prover visibilidade e fomentar futuros projetos nas áreas de Museus e Patrimônio, considerando a atuação de impacto social sustentável promovida pelo Instituto. No campo da Gestão em Design, avalia-se a atuação do designer enquanto gestor de projetos de exposições, do começo ao fim, no sentido de promover o desenvolvimento social e sustentável em um projeto coeso, em atuação junto à cultura vernacular original brasileira representada pelos mestres artesãos reconhecidos pela Rede ARTESOL.
PENGARUH LINGKUNGAN SEKOLAH TERHADAP KARAKTER SISWA DI SDN 04 LIMBOTO
Authors: Rahmatia Nursyakinah , Munirah Munirah , Akolo Ingka Rizkiyani
Published: January 2025

This research aims to evaluate the extent to which the school environment influences student character development at SDN 04 Limboto. A quantitative approach utilizing survey methodology was employed to gather comprehensive and thorough information about how the school environment shapes student character at this institution. The study focused on SDN 04 Limboto's student population, drawing from a sample of 72 students. Questionnaires were utilized for data collection, followed by simple linear regression analysis. The findings revealed that the school environment significantly impacts student character formation, with environmental factors accounting for 64% of the influence and showing a 25.3% correlation. Analysis yielded the regression equation Y= 29.050 + 0.217(x), indicating that each enhancement in the school environment contributes to a 0.217 improvement in student character at SDN 04 Limboto. Given these significant findings regarding the school environment's influence on student character development, the study suggests that maintaining and improving the school environment would positively affect student character formation at SDN 04 Limboto.
Analisis Penerapan Infrastruktur Telekomunikasi Berbasis Community-Centric Pada Perumahan Di Kota Bandung
Authors: Paramarta Muhammad Rizky , Paramarta Vip
Published: January 2025

Penelitian ini menganalisis penerapan infrastruktur telekomunikasi berbasis komunitas di perumahan di Kota Bandung dan dampaknya terhadap niat membeli rumah. Seiring dengan meningkatnya kebutuhan akan layanan digital dan internet yang dapat diakses secara luas, pendekatan community-centric menjadi relevan.. Penelitian ini menggunakan metode Importance Performance Analysis (IPA) dan Structural Equation Modelling – Patrial Least Square (SEM-PLS) dengan survei dan analisis data untuk mengevaluasi efisiensi dan pengaruh infrastruktur telekomunikasi terhadap preferensi konsumen.
Hasil penelitian menunjukkan bahwa infrastruktur telekomunikasi berbasis komunitas di perumahan memiliki peran penting dalam meningkatkan kepuasan konsumen dan mempengaruhi keputusan pembelian. Infrastruktur yang terintegrasi dan dapat diakses meningkatkan persepsi nilai dari properti perumahan, meskipun konsumen enggan membayar lebih untuk layanan tersebut. Temuan ini mengindikasikan bahwa pengembang perumahan perlu mempertimbangkan penerapan infrastruktur telekomunikasi berbasis komunitas untuk meningkatkan daya tarik properti mereka di pasar.