bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengembangan Media Pembelajaran Video Animasi Berbasis Animaker pada Pembelajaran Tema 3 Sub Tema 1 Bagaimana Tubuh Mengolah Makanan Di Kelas 5 SD Negeri 10 Rantau Prapat
Authors: Gandamana Apiek , Marisa Marisa 
Published: January 2023

Penelitian pengembangan didasari oleh permasalahan yang ditemukan di Sd Negeri 10 Rantauprapat. Berdasarkan hasil observasi, permasalahan yang ditemukan adalah pada saat proses belajar mengajar berlangsung guru jarang menggunakan media pembelajaran video animasi. Adapun media yang digunakan yaitu media gambar yang dapat dibuat dengan menempelkan gambar di kertas karton.Tujuan penelitian ini untuk mengetahui kelayakan, keperaktisan dan keefektifan media video animasi berbasis animaker. Penelitian ini merupakan jenis penelitian pengembangan (R&D) mengguakan model ADDIE.Pada aspek kelayakan media penilaian di lakukan oleh ahli media dan ahli materi. Pada aspek keperaktisan di lakukan oleh guru. Pada aspek keefektifan penggunaan tes dilakukan oleh siswa. Validasi ahli media diperoleh 83% “Sangat Layak”. Ahli materi tahap I 64% menjadi 90% kategori “Sangat Layak” kepraktisan 96% dan espon siswa 93% media ini efektif. Pada uji coba memperoleh rata-rata 62 pada saat pretes dan mengalami peningkatan hasil belajar setelah menggunakan media dengan rata-rata 89 pada saat post test, hasil belajar mengalami kenaikan sebesar 27%. Maka dari itu dapat disimpulkan bahwa media video animasi berbasis animaker di kelas 5 SDN 10 Rantauprapat layak digunakan dalam proses pembelajaran.
EFEKTIVITAS MODEL PEMBELAJARAN KONTEKTUAL DALAM MENINGKATKAN KECERDASAN JAMAK ANAK USIA DINI
Authors: Marbun Sariana , Handayani Feny Husna , Simanjuntak Jasper 
Published: January 2023

ABSTRACT This type of research is Research and Development (R&D), which was conducted at two PAUD (kindergarten) institutions in the city of Medan. Trial 1 was conducted on 5 children, the results of 60% of children who have Intelligence Developed in Accordance with Expectations (BSH) increased to 80%. Likewise, what was done in the pilot phase 2 model of 15 children, out of 46% of children who had the Intelligence Developed in Accordance with Expectations (BSH) increased to 80%. The results of this study concluded that contextual learning is effective in increasing the plural intelligence of early childhood / kindergarten. Keywords: Contextual, Multiple Intelligences ABSTRAKJenis penelitian ini adalah Penelitian Pengembangan (R&D), yang dilakukan pada dua lembaga PAUD (Taman Kanak-kanak) di Kota Medan. Uji coba 1 dilakukan pada 5 orang anak memperoleh hasil dari 60% anak yang memiliki kecerdasan Berkembang Sesuai Harapan (BSH) meningkat menjadi 80%. Demikian juga yang dilakukan pada uji coba model tahap 2 pada 15 orang anak, dari 46% anak yang memiliki kecerdasan Berkembang Sesuai Harapan (BSH) meningkat menjadi 80%. Hasil penelitian ini menyimpulkan bahwa pembelajaran kontektual efektif dalam meningkatkan kecerdasan jamak anak usia dini/TK.Kata Kunci: Kontektual, Kecerdasan Jamak
KETERAMPILAN PROSES SAINS PADA MODUL PRAKTIKUM KONSEP DASAR IPA UNTUK MENGIDENTIFIKASI KEMAMPUAN DESAIN BEREKSPERIMEN MAHASISWA PGSD
Authors: Manurung Imelda Free Unita 
Published: January 2023

ABSTRACTThis study aims to determine the application of basic science concepts practicum modules that are designed by using the design of science process skills in practicum basic concepts of science to improve the ability of experimenting PGSD students. This study uses a pre-experimental design with cluster random sampling technique. The instruments used in this study were the learning outcomes sheet and the practical concept modules for the basic concepts of science that were designed using science process skills. The results of observations of the implementation of learning at each meeting were obtained at meetings 1,2, and 3 obtained by 81.58%, 85.44%, and 88.26% of students were able to carry out practical activities with the category of almost all activities carried out well. Keywords: Practicum Module, Experimental Ability ABSTRAKPenelitian ini bertujuan untuk mengetahui penerapan modul praktikum konsep dasar IPA yang dirancang dengan menggunakan desain keterampilan proses sains pada praktikum konsep dasar IPA untuk meningkatkan kemampuan bereksperimen mahasiswa PGSD. Penelitian ini menggunakan desain pre-experimental dengan teknik pengambilan sampel cluster random sampling. Instrumen yang digunakan dalam penelitian ini yaitu lembar keterlaksanaan pembelajaran dan modul praktikum konsep dasar IPA yang didesain menggunakan keterampilan proses sains. Hasil observasi keterlaksanaan pembelajaran tiap pertemuan diperoleh pada pertemuan 1,2, dan 3 diperoleh sebesar 81,58 %, 85,44 %, dan 88,26 % mahasiswa mampu melaksanakan kegiatan praktikum dengan kategori hampir seluruh kegiatan terlaksana dengan baik. Kata Kunci : Modul Praktikum, Kemampuan Bereksperimen
ANALISIS KEMAMPUAN METAKOGNISI SISWA TERHADAP MATERI BANGUN RUANG DI SD
Authors: Anggraini Lenny Gusti , Anas Nirwana 
Published: January 2023

ABSTRACTThis study aims to analyze the extent to which the metacognition abilities of fifth grade elementary school students in mathematics subject to material in space. This type of research is descriptive qualitative, the subjects in the study were elementary school students class V-b, amounting to 31 people. Data was collected using a questionnaire that refers to the rubric Metacognitive Awareness Inventory (MAI). The results showed that the ability of metacognition in fifth grade elementary school students showed that the ability of 80% cognitive knowledge and 81% cognitive regulation with this can be said to be very related.Keywords: Build Space, Metacognition and Regulation ABSTRAKPenelitian ini bertujuan untuk menganalisis sejauh mana kemampuan metakognisi siswa SD kelas V dalam pelajaran matematika materi bangun ruang. Jenis penelitian ini ialah deskriptif kualitatif, subjek dalam penelitian adalah siswa SD kelas V-b yang berjumlah 31 orang. Pengumpulan data dilakukan menggunakan angket yang mengacu pada rubrik Metacognitive Awareness Inventory (MAI). Hasil penelitian menunjukkan bahwa kemampuan metakognisi pada siswa SD kelas V menunjukkan bahwa kemampuan pengetahuan kognisi 80% dan regulasi kognisi 81% dengan ini dapat dikatakan sangatlah berhubungan. Kata Kunci: Bangun Ruang, Metakognisi dan Regulasi
PENGUATAN POSITIF GURU DALAM UPAYA MENINGKATKAN MOTIVASI BELAJAR SISWA KOMPETENSI DASAR HUBUNGAN SATUAN PANJANG MATEMATIKA KELAS IV SD NEGERI 060883 MEDAN PETISAH
Authors: Silaban Jojor 
Published: January 2023

ABSTRACTStudent achievement motivation will increase if given positive reinforcement in the form of prizes in learning mathematics in Class IV SD60603 Medan Petisah. The population of this study was conducted on all Class IV students at 060883 Medan Petisah Primary School. A total of 44 people, using positive reinforcement (prizes). This research was conducted in the subject area of Mathematics Subject "Long Unit Relations". The tools used to collect data in this study were the observation sheet for the teacher, the student motivation observation sheet and the list of student grades. The results showed that in the initial conditions, the average value of students' counts was 5.70 in the first cycle, the average value of students' counts increased by 6.02 while in cycle II there was a very significant increase, the students' average values rose to 8 , 81.Keywords: Learning Motivation, Long Relations ABSTRAKMotivasi berprestasi siswa akan meningkat jika diberikan penguatan positif berupa hadiah pada pembelajaran matematika di Kelas IV SD Negeri 060883 Medan Petisah. Populasi penelitian ini dilakukan terhadap seluruh peserta didik Kelas IV di SD Negeri 060883 Medan Petisah. Berjumlah 44 orang, dengan menggunakan penguatan positif (hadiah). Penelitian ini dilakukan bidang studi Matematika Pokok Bahasan “Hubungan Satuan Panjang”. Alat yang dilakukan untuk mengumpulkan data dalam penelitian ini adalah lembar observasi untuk guru, lembar observsi motivasi siswa dan daftar nilai siswa. Hasil penelitian menunjukkan bahwa pada kondisi awal, nilai rata-rata hitung siswa adalah 5,70 pada siklus I nilai rata-rata hitung siswa naik yaitu 6,02 sedangkan pada siklus II terjadi kenaikan yang sangat signifikan, nilai rata-rata siswa naik menjadi 8,81.Kata Kunci : Motivasi Belajar, Hubungan Satuan Panjang
UPAYA PENINGKATAN HASIL BELAJAR MENGGUNAKAN METODE TEAM GAMES TOURNAMENT PADA KOMPETENSI DASAR SDA DAN KEGIATAN EKONOMI MASYARAKAT MATA PELAJARAN IPS
Authors: Naimah Naimah 
Published: January 2023

ABSTRACT This study aims to improve student learning outcomes by using the Team Games Tournament (TGT) method on social studies subject matter of natural resources and community economic activities in Class IV SD Negeri No. 067953 Medan Deli Subdistrict T.A 2018/2019. The subjects of this study were students in Class IV SD 067953 Medan Deli Subdistrict, amounting to 30 students consisting of 13 male students and 17 female students. And data collection tools used are observation sheets and test results of learning. Keywords: Learning Outcomes, TGT Method ABSTRAKPenelitian ini bertujuan untuk meningkatkan hasil belajar siswa dengan menggunakan metode Team Games Tournament (TGT) pada mata pelajaran IPS pokok bahasan sumber daya alam dan kegiatan ekonomi masyarakat di Kelas IV SD Negeri No. 067953 Kec Medan Deli T.A 2018/2019.Subjek penelitian ini adalah siswa Kelas IV SD 067953 Kec Medan Deli yang berjumlah 30 siswa yang terdiri dari 13 siswa laki-laki dan 17 siswa perempuan.Dan alat pengumpulan data yang digunakan adalah lembar observasi dan tes hasil belajar.Kata Kunci : Hasil Belajar, Metode TGT
Viscous Stability Criterion for Hydrodynamic Differential Rotation
Authors: Maatoug Zinab M. , Albibas Hana N. , Sharif Bashir W. , Awin Ali M. 
Published: January 2023

Viscous stability criterion in a thin layer on a rotating sphere is studied. The case when the fluid is inviscid was explained by Watson in 1981, the work was motivated by the idea suggested by Drazin and Ried in their celebrated text "Hydrodynamic Stability"; here we will investigate the model worked out by B. Sherif and C. Jones in the year 2005, and show the necessary condition for instability which depends on the energy that is provided by the shear motion of the fluid in spherical thin layer.
The application of directional derivative in the design of animation characters and background elements
Authors: Zhang Qing 
Published: January 2023

Abstract
In the process of designing animation characters and background elements, there may be a high degree of visual blur, resulting in a strong sense of picture distortion, and it is easy to expose the incomplete picture. Accordingly, this paper proposes to use directional derivatives to deal with animation-like visual problems. This method is based on the theoretical basis of directional derivatives, combined with the current mathematical methods of animation character and background element design, and defines the important role of directional derivatives in animation and background design, and more effectively enhances the visual results of animation characters. In the research of clarity and distortion, this paper uses directional derivative derivation as the cutting-in method to test the algorithm for visual simulation and restoration of animated characters and background elements so that the algorithm can be used for each animation character and background element. The defect point is calculated, and the clarity and self-healing ability of the video itself are improved by the influence of the mathematical parameters of the surrounding known points on itself and the key variable of the directional derivative in the field. The results show that the directional derivative can play a role in promoting sublimation in the design of animated characters and background elements.
A design of the lightweight key management system for multi-level embedded devices
Authors: Wang Lei , Li Yalong , Tian Xinyuan , Mo Deyun 
Published: January 2023

Abstract
Embedded devices often face security risks such as device loss, cracking, key disclosure and side-channel attacks. Owing to the relative meagreness characterising the availability of computing as well as storage resources, it might be said that embedded devices themselves have limited resources, and traditional key management solutions are thus not fully suitable for embedded device usage scenarios. In addition, embedded device key management also necessitates consideration of the dynamic changes of devices, such as device joining and withdrawal, and blacklist management and control. A lightweight key management scheme is proposed for multi-layer embedded devices, and the management and control problems of the device blacklist library are analysed and an optimisation scheme is proposed. Finally, the scheme of this paper is analysed in detail based on the aspects of security and resource overhead. Compared with the traditional key management scheme, the scheme designed in this paper can be better applied to the communication of embedded devices to meet the security requirements of embedded systems.
Adaptive Optics Ophthalmoscopy in Diabetic Retinopathy
Authors: Andrada-Elena Mirescu , Teodora Tofolean Ioana , Irina-Elena Cristescu , George Balta , Florian Balta , Sanda Jurja 
Published: January 2023

Abstract
Diabetic retinopathy is the leading cause of visual loss and blindness in working-age adults and represents the most common microvascular complication of diabetes mellitus.
The current research assesses the retinal arterioles status in healthy volunteers and diabetic patients, in order to detect early retinal changes by using adaptive optics ophthalmoscopy (AOO), a cutting edge, noninvasive imaging technique. Our patients were evaluated between 2021-2022 in the Retina Clinic Bucharest, Romania. All of them underwent a complete ophthalmologic examination. By using rtx1™ adaptive optics retinal camera (Imagine Eyes, Orsay, France) together with the manufacturer’s software (AO detect artery, Imagine Eyes, France), several vascular parameters of the retinal arteriole were calculated, including wall to lumen ratio (WLR), vessel diameter (VD), lumen diameter (LD), mean wall thickness (WT) and cross-sectional area of the vascular wall (WCSA).
All five studied vascular parameters were found to have higher values in diabetic patients, when compared to healthy volunteers. The differences were statistically significant for WT, WLR and WCSA (p values under 0.05).
Adaptive optics ophthalmoscopy represents a cutting-edge technique, opening a new era in the medical retina field. It provides useful data regarding the retinal vascular status, in a non-invasive manner, being a promising tool in the diagnosis, staging and follow-up of diabetic retinal disease.
Ethipatogenetic Study of Urothelial Carcinomas in the Urology Clinic of the County Clinical Hospital of Constanta
Authors: Cosmin Preda , Leonard Gurgas 
Published: January 2023

Abstract
Bladder cancer is the most common malignancy involving the urinary system, urothelial carcinoma of the upper tract is a rare subgroup of urothelial cancers with poor prognosis, being the most common histological type of bladder cancer (approximately 90%), manifesting as invasion of the basal membrane (or deeper) by neoplastic cells of urothelial origin.
This type of carcinoma is more common in men than women, with a male to female ratio of 2:1, with men being 3 to 4 times more likely to develop bladder cancer than women.
The present study is a retrospective study including 174 patients in the Urology Clinic of Constanta County St. Apostle Andrew Emergency Hospital in the period 2016-2020. Patients were divided into 2 groups: Group A and Group B. Group A includes patients with anatomopathologically confirmed diagnosis of urothelial carcinoma, while in Group B are patients who do not present a diagnosis of urothelial carcinomas.
In this study the influence of environmental factors on the occurrence of urothelial carcinomas was compared in order to draw conclusions on the occurrence and development of these types of neoplasms.
Sacrificial Anode Cathodic Protection System Modelling Using Direct Boundary Element Method
Authors: Mujezinović Adnan , Martinez Sanja 
Published: January 2023

Abstract
Cathodic protection system is commonly employed approach for the protection of the metallic infrastructure placed in electrolyte against corrosion. Adequate design of the cathodic protection system requires the determination of electrical potential and current density distribution on the protected object surface that meets the defined criteria. In this paper, the application of the direct boundary element method in conjunction with Newton-Raphson method was considered for the calculation of the electric potential and current density distribution on the surface of the cathodically protected underground object. The considered method was applied on the sacrificial anode cathodic protection system of the underground pipeline. The non-linear boundary conditions of the electrode surfaces of the cathodic protection system are taken into account. The method was used to determine the current density and electric potential distribution on the external wall of the protected pipeline.
Features of Self-Taxation as a Form of Local Budget Revenues
Authors: Babin Igor Ivanovych 
Published: January 2023

Abstract
The aim of the article is to reveal the features of self-taxation as an independent form of local budget revenues. There is no consensus among domestic and foreign scholars on understanding the nature, place, and role of self-taxation in the system of income sources of territorial communities. Another problem is the fact that today in Ukraine there is virtually no legislative regulation of this financial and legal institution. The research methodology is based on formal-dogmatic, comparative-legal, systemic-structural and other scientific methods. It is substantiated that self-taxation is an independent type of mandatory payment, which is non-tax in nature and is used to address issues of local importance, the population at a general meeting or local referendum independently determines its size, procedure for introduction, and use.
On the Influence of the Nugget Effect on the Efficiency of Magnetometric Soil Surface Screening
Authors: Zawadzki Jarosław , Fabijańczyk Piotr 
Published: January 2023

Abstract
The paper presents selected aspects of calculations and modelling of variograms from measurements of soil surface magnetic susceptibility for rapid screening of surface soil contamination with Technogenic Magnetic Particles (TMP). In particular, the methodology of variogram analysis in the case of multiple magnetometric measurements in one measurement location with the use of the MS2D Bartington sensor was discussed. A new approach to analysing such measurements was proposed that allows determining and using the nugget effect from standard, already existing measurements. This is of key importance for the quality of spatial analyses, and thus the screening results obtained by means of field magnetometry. In the paper, it was shown, step by step, that averaging the measurements performed at one measurement point during the calculation of the empirical variograms does not result in the loss of information on spatial variability in the microscale. As it was calculated non-averaged measurements were characterised by the nugget-to-sill ratio of about 96 % which was much higher than in the case of averaged measurements (close to 0 %). A range of correlation was similar in both cases and was equal to about 300 m - 400 m. The local variogram revealed a range of correlation of about 80 cm. As a result, the screening results are more reliable than is the case with the traditional procedure. An additional advantage of the work was the performance of all calculations in free R software.
The coronavirus and center-peripheral relations in the economies of the European Union
Authors: Jasiecki Krzysztof 
Published: January 2023

Abstract
From the perspective of the diversity of capitalism and that of economic sociology, the article deals with the issue of center-peripheral relations as one of the key dimensions of economic diversification that determines the development opportunities of the European Union. The collapse of the convergence processes during the 2008–2010 financial crisis revealed the separateness of development trajectories of various countries and geographical regions of the EU. Without reversing this phenomenon and working out new mechanisms of development convergence and institutions supporting them, the process of European integration will enter further structural crises that may lead to the disintegration of the EU. Various classifications of the core and of the peripheries of the euro area are characterized, within which several types of countries are identified with different economic characteristics (countries of the Northern core and of the Southern peripheries of the euro area, different types of peripheries in Southern Europe and in Central and Eastern Europe, the internal core and the external core or the outer core, and the internal peripheries and the external peripheries, as well as the super-peripheries including candidates or potential candidates to join the EU). The COVID-19 crisis has an asymmetric impact on the economic situation of the Member States. As with other crises, this impact will be the result of the interconnection of the prior state of economies, structural differences in growth patterns, and responses to new challenges brought about by the pandemic. Also, the consequences of the pandemic for the reconfiguration of center-peripheral relations in the EU are discussed, with a particular focus on the CEE.
Correlation Depending on Age Between Saliva and Plasma Parameters
Authors: Bălan Daniela-Gabriela , Avino Adelaida , Mutu Daniela-Elena Gheoca , Gaube Alexandra , Neagu Alexandra , Tulin Raluca , Isac Sebastian , Georgescu Dragoș Eugen , Dragoș Dorin , Cobilinschi Claudia , Chiperi Liviu Vasile , Ionescu Dorin , Balcangiu-Stroescu Andra-Elena , Călinoiu Amalia Loredana , Văcăroiu Ileana Adela 
Published: January 2023

Abstract

Introduction. Because of the increasing interest in the study of saliva, many methods have become available that can allow us to perform multiple and rapid analyzes of the composition of salivary secretion using advanced techniques of nanotechnology and fluid micro- engineering. The objectives of our study were to identify immunoglobulin levels variations with age.

Materials and methods. We conducted an analysis to check the correlation between saliva and plasma parameters on 24 patients. The study population was divided into 2 groups based on age, with a cut-off at 35 years. The differences on the variables between two groups were evaluated by TTEST and CORREL.

Results. Total plasma calcium, as well as ionic calcium have increased values in group 2, the increase being statistically significant (p =0.04) only for ionic calcium. Significant correlation of plasma and salivary values in the case of IgA / IgG ratio, and also a significant correlation of salivary and plasma concentrations for IgG were identified in our study.

Conclusions. The correlation between plasma and salivary parameters is closely related to age and these can be used as markers for diagnosis and evaluation of various pathologies. Also, regarding women, salivary calcium and phosphate concentrations increase with age showing peak values around menopause.