bluuebunny/crossref_metadata_2025_split huggingface dataset:
PEMBELAJARAN MODEL PROBLEM BASE LEARNING (PBL) DALAM UPAYA MENINGKATKAN PRESTASI BELAJAR MATEMATIKA SEKOLAH DASAR
Authors: Rugayah Rugayah 
Published: October 2021

Latar. belakang penelitian ini adalah rendahnya hasil belajar dan kemampuan berpikir kritis matematika. Tujuan dari penelitian ini yaitu untuk; 1. mengetahui penerapan PBL dan memaparkannya serta untuk meningkatkan hasil belajar dan kemampuan berpikir kritis, 2. mengetahui dan meningkatkan hasil belajar 3. mengetahui dan meningkatkan kemampuan berpikir kritis. Penelitian ini merupakan penelitian tindakan kelas dan dilakukan dengan dua siklus Subjek penelitian adalah siswa kelas III SD Negeri 49/IX Solok sebanyak 28 siswa. Pada penelitian ini menggunakan teknik. pengumpulan data meliputi observasi, tes dan kuesioner. Pada penelitian ini Instrumen yang digunakan menggunakan lembar pengamatan, tes soal uraian, dan lembar kuesioner. Analisis data menggunakan statistika deskriptif. Pembelajaran PBL pada penelitian ini melalui beberapa langkah yang meliputi: a. orientasi siswa pada masalah, b. mengorganisasikan siswa untuk belajar c. membantu penelitian mandiri dan kelompok, d. mengembangkan dan menyajikan hasil karya, e. Dapat meningkatkan hasil belajar dan kemampuan berpikir kritis, menganalisis dan mengevaluasi proses pemecahan masalah. Hasil penelitian dapat disimpulkan bahwa upaya meningkatkan hasil belajar dan kemampuan berpikir kritis materi perkalian dan pembagian kelas III A SDN 208/IX Sumber Jaya Tahun Pelajaran 2019/2020 ditempuh dengan menggunakan pembelajaran inovatif Problem Based Learning dapat meningkatkan hasil belajar siswa pada materi perkalian dan pembagian, hal ini ditunjukkan dari hasil belajar siswa sebelumnya pada kondisi awal sebesar 71,92 meningkat pada siklus I sebesar 77,89 dan pada siklus II meningkat lagi sebesar 90,82. Sedangkan pencapaian KKM yang diperoleh siswa mengalami peningkatan dari kondisi awal sebesar 62,28%, meningkat pada siklus I sebesar 85,18% dengan KKM 75 dan pada siklus II menjadi 82,14% dengan KKM 80. Walaupun persentase peningkatan ketercapaian KKM mengalami penurunan pada siklus II, tetapi peneliti meningkatkan target dan nilai KKM disiklus II. Melalui pembelajaran inovatif Problem Based Learning dapat meningkatkan kemampuan berpikir kritis siswa pada materi perkalian dan pembagian kelas III SDN 208/IX Sumber Jaya Tahun Pelajaran 2019/2020. Perolehan nilai siswa dapat dilihat dari nilai kemampuan berpikir kritis kondisi awal 50,35 dengan kriteria sangat tidak kritis meningkat pada kondisi akhir menjadi 71,62 dengan kriteria cukup kritis. Kata kunci:berpikir kritis; hasil belajar; problem base learning; siswa
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE OPEN-ENDED UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA KELAS IV SDN 101/X LAMBUR I
Authors: Amaliyah Yuli , Mardiana Mardiana , Setiono Panut 
Published: October 2021

Penelitian ini bertujuan untuk bertujuan untuk meningkatkan kemampuan berpikir kreatif matematis siswa kelas IV SDN 101/X Lambur I dengan penerapan model pembelajaran kooperatif tipe Open-Ended. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan di SDN 101/X Lambur I. Subjek penelitian ini adalah siswa kelas V SDN 101/X Lambur I dengan jumlah 24 orang siswa. Hasil penelitian memperlihatkan pembelajaran kooperatif tipe Open-Ended dapat meningkatkan keterampilan berpikir kreatif matematis siswa. Keterampilan berpikir kreatif matematis siswa setelah penerapan model pembelajaran Kooperatif Open-Ended dari siklus I ke siklus II meningkat Sebesar 16,7% atau terdapat penambahan sebanyak 4 orang anak yang memiliki kemampuan berpikir kreatif matematis dengan kategori ‘Sangat Baik’ dari sebelumnya. Selain itu terdapat kenaikan Sebesar 25% atau terdapat penambahan 6 orang anak yang memiliki kemampuan berpikir kreatif matimatis dengan kategori ‘Baik’. Kata kunci :Pembelajaran Kooperatif Tipe Open-Ended; Kemampuan Berpikir Kreatif Matematis.
MENINGKATKAN PEMAHAMAN MATEMATIS SISWA DENGAN MENGAPLIKASIKAN MODEL PEMBELAJARAN TEAMS GAME TOURNAMENT (TGT) BERBASIS BAHAN AJAR GAMIFIKASI
Authors: Adinti Chinthia , Asih Saputri Dwijowati , Yunian Putra Rizki Wahyu 
Published: October 2021

1, 2, 3Universitas Islam Negeri Raden Intan, Lampung123e-mail: ABSTRAKPenelitian ini bertujuan untuk meningkatkan pemahaman matematis siswa dengan mengaplikasikan model pembelajaran Team Game Tournament (TGT) berbasis bahan ajar gamifikasi. Peneliti menggunakan metode penelitian eksperimen dengan mengadopsi Quasy Experiment Design. Peneliti juga menggunakan cluster random sampling sehingga didapat kelas VIII A sebagai kelas eksperiment yang menggunakan model pembelajaran Teams Games Tournament (TGT), kelas VIII B kelas eksperiment yang menerapkan bahan ajar gamifikasi menggunakan model Teams Games Tournament (TGT), sedangkan kelas VIII C sebagai kelas kontrol yang pembelajarannya menggunkan metode tradisional. Hasil penelitian meunjukan bahwasanya terdapat pengaruh penerapan model pembelajaran teams games tournament (TGT) menggunakan bahan ajar gamifikasi dalam meningkatkan penalaran matematis siswa. Peningkatan penalaran matematis siswa pada kelas dengan perlakuan model pembelajaran Teams Games Tournament (TGT) menggunakan bahan ajar gamifikasi lebih baik dibandingkan dengan model pembelajaran konvensional. Kata kunci : Teams Game Tournament; Bahan Ajar Gamifiasi; Pemahaman Matematis ABSTRACTThis research aims to improve students’mathematical understanding by applying the Team Game Tournament (TGT) learning model based on gamification teaching materials. Researchers used experimental research methods by adopting the Quasy Experiment Design. Researchers also used cluster random sampling so that class VIII A was obtained as an experimental class using the Teams Games Tournament (TGT) learning model, class VIII B was an experimental class that applied gamification teaching materials using the Teams Games Tournament (TGT) model, while class VIII C was a class. control learning using traditional methods. The results show that there is an effect of the application of the Teams Games Tournament (TGT) learning model using gamification teaching materials in improving students' mathematical reasoning. The improvement of students' mathematical reasoning in the class with the Teams Games Tournament (TGT) learning model treatment using gamification teaching materials is better than the conventional learning model. Keywords : Teams Game Tournament; Gamification Teaching Materials; Mathematical Understanding
PENGEMBANGAN LKPD MATERI HIMPUNAN KONTEKS PENCARIAN HARTA KARUN DI SUNGAI MUSI
Authors: Malalina Malalina , Firma Yenni Rika , Apriani Dian 
Published: October 2021

ABSTRAKSumber belajar yang dapat dikembangkan untuk membantu peserta didik menjadi aktif dan memahami materi salah satunya adalah LKPD. LKPD adalah bahan ajar berupa lembaran didesain berisi latihan berisi langkah-langkah tugas yang harus diselesaikan peserta didik. Rumusan masalah dalam penelitian ini adalah bagaimana mengembangkan LKPD materi himpunan konteks pencarian harta karun di Sungai Musi yang valid dan praktis. Metode penelitian yang digunakan adalah pengembangan dengan dua tahap yaitu preliminary study dan formatif study. Penelitian ini hanya pada tahap self evaluation, expert review, one to one, dan small group dengan teknik pengumpulan data menggunakan walk through, dokumentasi, wawancara, dan angket. Penelitian ini menghasilkan produk LKPD materi himpunan konteks pencarian harta karun di Sungai Musi dengan kategori valid dan praktis. Kata kunci :Himpunan, LKPD, Konteks ABSTRACTOne of the learning resources that can be developed to help students become active and understand the material is LKPD. LKPD is a teaching material in the form of a sheet designed to contain exercises containing the steps of the task that must be completed by students. The formulation of the problem in this research is how to develop valid and practical LKPD for the context of finding treasures in the Musi River. The research method used is development with two stages, namely preliminary study and formative study. This research is only at the stage of self evaluation, expert review, one to one, and small group with data collection techniques using walk through, documentation, interviews, and questionnaires. This research produces LKPD products for the context of finding treasures in the Musi River with valid and practical categories. Keywords :Set, LKPD, Context
Perencanaan Perkerasan Kaku dengan Metode AASHTO 1993 Studi Kasus Jalan Batanghari II Kabupaten Muaro Jambi
Authors: Kurniawan Sigit , Jatoeb M Asmuni , Susiana Susiana 
Published: October 2021

Ruas jalan Batanghari II merupakan jalan Nasional yang menghubungkan Kota Jambi dengan Kabupaten Tanjung Jabung Timur. Jalan ini membentang sepanjang 33 km dari perbatasan Kota Jambi – Kabupaten Muaro Jambi hingga Zona Lima (simpang plabi) Kabupaten Tanjung Jabung Timur. Ruas jalan ini merupakan penghubung sektor ekonomi, sosial dan budaya Kabupaten Tanjung Jabung Timur, Kabupaten Muaro Jambi dan Kota Jambi. Kendaraan yang melintas pada ruas jalan Batanghari II didominasi oleh kendaraan truk kecil maupun besar pengangkut hasil ekonomi dan hasil bumi lainnya. Kondisi jalan Batanghari II pada STA 18+500 merupakan perkerasan lentur yang telah hancur permukaannya hingga lapisan pondasi di bawahnya. Pada studi ini akan direncanakan perkerasan kaku dengan metode AASHTO 1993. Perencanaan dengan panjang jalan 3,6 km dan lebar 7 meter, dengan perencanaan CBR tanah dasar 6%, dengan nilai W18 dalam setahun sebesar 455.664,051. Pada studi ini didapat nilai ESAL dalam 30 tahun sebesar 30.273.794, 429 ESAL, dengan tepal pelat beton 28 cm. Dengan jenis sambungan perkerasan bersambung dengan tulangan dengan panjang pelat 10 meter, dipasang tulangan wiremesh M10–150 mm. Serta dipasang tulangan Tie Bar Ø16 mm dengan panjang 700 mm dan jarak 750 mm. Serta tulangan Dowel Ø36 mm dengan panjang 450 mm dan jarak 300 mm.
Hubungan Asupan Makanan Dengan Kenaikan Berat Badan Ibu Hamil Di Wilayah Kerja Puskesmas Lingkar Timur Kota Bengkulu
Authors: Asmawati Asmawati , Irma Wenny , Dahrizal Dahrizal 
Published: October 2021

Pregnant’s nutritional intake is one of the most factors that affects the health of pregnant and the newborns. This study aims to identificate the correlation food intake and weight gain during one month of pregnancy in the community health center of ​​Lingkar Timur Bengkulu. The research design was a cross-sectional. Sampling technique were consequtive sampling with a total of 79 pregnant woman. The weight gain observed during one month. Data of intake nutrition taken by quissionaire from self management nutrition (SMN) instrument that consist 25 item of questions. The result showed 63 (79,75%) pregnant women have suitable weight gain of Institute of Medicine (IOM) recommendation and 47 (59,49 %) had good food intake. Of 47 or 84.0% pregnant women who had good food intake, she had a suitable weight gain with IOM recommendation. The analysis chi-square showed there is a correlation between food intake and weight gain in one month of pregnancy (p-value 0.039 < α ≤0.05). The nutrition intake is important for increase a suitable of weight gain during pregnant periode.
Determinación de la fatiga visual y su relación con el teletrabajo en el personal administrativo de la facultad de Ingeniería de la Universidad Nacional de Chimborazo: Caso práctico
Authors: Verdezoto Espinoza Edison , Cabezas Heredia Edmundo 
Published: October 2021

Introducción, según la encuesta aplicada al personal administrativo de la Facultad de Ingeniería de la Universidad Nacional de Chimborazo el 77.8 % usa más de 4 horas el computador y 22.2 % de 2 a 4 horas. Objetivo, es valorar los niveles del síndrome informático visual por medio del test CVSS 17 expuestos a pantallas de visualización digital. Metodología, se realizó mediante un estudio transversal aplicado a 27 administrativos de la Facultad de Ingeniería. Se evaluaron variables sociodemográficas del personal. Se aplicó el test CVSS 17 para medir si existe fatiga visual. La fiabilidad del instrumento es de 0.87 Resultados, los resultados obtenidos 22.2 % son asintomáticos y 77.8 % tienen fatiga visual. El 22.2 % tiene fatiga moderada nivel 3, 66.7 % moderado nivel 4 y 11.1 % Severo Nivel 5. Conclusión, mediante el uso del test diseñado para medir los síntomas oculares y visuales asociados al uso de PVD, se presenta un 77.8 % de fatiga visual. La presencia de alteraciones clínicas se ha mostrado significativamente asociada al teletrabajo, pandemia, la edad de los individuos, enfermedades visuales previas.
SOSYAL MEDYA ETKİLEYİCİLERİ TARAFINDAN İNTERNET ARACILIĞIYLA YAPILAN REKLAMLARA İLİŞKİN HUKUKİ DÜZENLEMELERİN DEĞERLENDİRİLMESİ
Authors: KARATEPE KAYA Meltem 
Published: October 2021

Dünya üzerinde internet ve sosyal medya kullanımı gün geçtikçe artmaktadır. Türkiye internet ve sosyal medya kullanımı açısından dünyada üst sıralarda yer almaktadır. Bu durumun doğal bir sonucu olarak günümüzde internet üzerinden yapılan pazarlama faaliyetlerinin ve sosyal medya aracılığıyla yapılan reklamların önemi arttırmıştır. COVID-19 salgını dolayısıyla yaşanan karantina ve kısıtlamalar da sosyal medya aracılığıyla internet üzerinden yapılan reklamların oranını ve önemini arttırmıştır. İnternet üzerinden yapılan reklamların önemli bir parçasını sosyal medya etkileyicilerinin yapmış olduğu reklamlar oluşturmaktadır. Sosyal medya kullanıcıları arasından, belli bir oranın üzerinde takipçiye sahip olan kişiler, herhangi bir eğitim ya da profesyonel şart aranmaksızın, sosyal medya etkileyicisi olarak reklam verenlerle yapmış oldukları anlaşmalar neticesinde sosyal medya paylaşımlarında markaların reklamını yapmaktadır. Sosyal medya etkileyicilerine yönelik ortaya çıkan en büyük kaygılardan biri tüketicileri sosyal medya paylaşımları vasıtasıyla belli ürün ve hizmetleri satın almaya kolaylıkla yönlendirebilmeleridir. Zira bu reklamların birçoğu reklam olduğu anlaşılmayacak şekilde samimi bir ürün veya hizmet önerisiymiş gibi takipçilere yani tüketiciye sunulmaktadır. Çalışmamızda, öncelikle sosyal medya etkileyicilerinin genel bir tanımını yapılarak devamında bu kişilerin sosyal medyada yapmış oldukları paylaşımların reklam içermesi durumunda bu reklamların hukuki mahiyeti analiz edilecektir. Özellikle yanıltıcı-aldatıcı ve örtülü reklam yasağını ihlal ederek sosyal medya yoluyla yapılan reklamlar karşısında Türk hukukunda ve karşılaştırmalı hukukta tüketicinin nasıl korunduğu değerlendirilecek ve bu reklamların haksız rekabet hukukundaki yeri analiz edilecektir. 5 Mayıs 2021 tarihinde Ticaret Bakanlığı tarafından yayınlanan Sosyal Medya Etkileyicileri Tarafından Yapılan Ticari Reklam ve Haksız Ticari Uygulamalar Hakkında Kılavuz da ayrıca analiz edilecektir. Çalışmamızın son kısmında Türk hukukunda sosyal medya etkileyicilerinin yapmış oldukları reklamlara ilişkin mevcut düzenlemeler değerlendirilerek bu düzenlemelere ilişkin önerilerimiz sunulacaktır.
Preliminary Study for Inspecting Moisture Content, Dry Matter Content, and Firmness Parameters of Two Date Cultivars Using an NIR Hyperspectral Imaging System
Authors: Ibrahim Ayman , Alghannam Abdulrahman , Eissa Ayman , Firtha Ferenc , Kaszab Timea , Kovacs Zoltan , Helyes Lajos 
Published: October 2021

The assessment and assurance of the quality attributes of dates is a key factor in increasing the competitiveness and consumer acceptance of this fruit. The increasing demand for date fruits requires a rapid and automated method for monitoring and analyzing the quality attributes of date fruits to replace the conventional methods used by inspection which limits the production and involves human errors. Moisture content (MC), dry matter content (DMC), and firmness (F) are three important quality attributes for two date cultivars (Khalas and Sukkari) that have been inspected using the hyperspectral imaging (HSI) technique based on the reflectance mode. Images of intact date fruits at the maturity stage Tamr were obtained within the wavelength range of 950–1750 nm. Monitoring and assessment of MC, DMC, and F [first maximum rupture force (MF, N)] were performed using a partial least squares regression model. Accurate prediction models were attained. The results highlight that the coefficients of determination (R2Prediction) are estimated to be 0.91 and 0.89 for MC, DMC, and F (N) with the lowest values of the standard error of prediction (SEP) equal to 0.82, 0.81 (%), and 4.12 (N), respectively, and the residual predictive deviation (RPD) values were 3.65, 3.69, and 3.42 for MC, DMC, and F (N), respectively. The results obtained from this preliminary study indicate the great potential of applying HSI for the assessment of physical, chemical, and sensory quality attributes of date fruits overall in the five maturity stages.
Crustal Anisotropy Beneath the Trans-North China Orogen and its Adjacent Areas From Receiver Functions
Authors: Xu Xiaoming , Ding Zhifeng , Li Li , Niu Fenglin 
Published: October 2021

As an important segment of the North China Craton, the Trans-North China Orogen (TNCO) has experienced strong tectonic deformation and magmatic activities since the Cenozoic and is characterized by significant seismicity. To understand the mechanism of the crustal deformation and seismic hazards, we determined the crustal thickness (H), Vp/Vs ratio (κ) and crustal anisotropy (the fast polarization direction φ and splitting time τ) beneath the TNCO and its adjacent areas by analyzing receiver function data recorded by a dense seismic array. The (H, κ) and (φ, τ) at a total of 309 stations were measured, respectively. The Moho depth varies from ∼30 km beneath the western margin of the Bohai bay basin to the maximum value of ∼48 km beneath the northern Lüliang Mountain, which shows the positive and negative correlations with the elevation and the Bouguer anomaly. The average φ is roughly parallel to the strikes of the faults, grabens and Mountains in this study area, whereas a rotating distribution is shown around the Datong-Hannuoba volcanic regions. Based on the φ measured from the Moho Ps and SKS/SKKS phases, we propose that the crustal deformation and seismic hazards beneath the TNCO could be due to the counterclockwise rotation of the Ordos block driven by the far-field effects of the India-Eurasian collision.
Impact of Luteinized Unruptured Follicles on Clinical Outcomes of Natural Cycles for Frozen/Thawed Blastocyst Transfer
Authors: Li Song , Liu Lokwan , Meng Tian , Miao Benyu , Sun Mingna , Zhou Canquan , Xu Yanwen 
Published: October 2021

ObjectiveTo investigate the impact of luteinized unruptured follicles (LUF) on clinical outcomes of frozen/thawed embryo transfer (FET) of blastocysts.MethodsIn this retrospective cohort study, 2,192 patients who had undergone blastocyst FET treatment with natural cycles from October 2014 to September 2017 were included. Using propensity score matching, 177 patients diagnosed with LUF (LUF group) were matched with 354 ovulating patients (ovulation group). The LUF group was further stratified by the average LH peak level of 30 IU/L. Clinical pregnancy rate and live birth rate were retrospectively analyzed between the LUF and ovulation groups, as well as between LUF subgroups.ResultsAfter propensity score matching, general characteristics were similar in the LUF and ovulation groups. Clinical pregnancy rate in the LUF group was significantly lower than that in the ovulation group (47.46 vs. 58.76%, respectively, adjusted P = 0.01, OR 0.60, 95% CI 0.42–0.87). However, no significant difference was detected in live birth rate, although it was lower in the LUF group (43.50 vs. 50.00%, adjusted P = 0.19, OR 0.76, 95% CI 0.51–1.14). In the LUF subgroup analysis, both clinical pregnancy rate (43.02 vs. 62.30%, adjusted P = 0.02, OR 0.45, 95% CI 0.23–0.87) and live birth rate (37.21 vs. 59.02%, adjusted P = 0.01, OR 0.40, 95% CI 0.20–0.78) in the LH &lt;30 IU/L subgroup were significantly lower than those in the LH ≥30 IU/L subgroup.ConclusionLUF negatively affected clinical outcomes of frozen/thawed embryo transfer of blastocysts, particularly when the LH surge was inadequate.
Multi-Year Survey and Bayesian Modeling Approach for Characterizing Arsenic Pollution in Marine Clams Cultivated Along the Tidal Flats of Mid-Eastern China
Authors: Wang Xinzhi , Ma Ying , Chen Lu , Zhang Wenying , Chen Xiang 
Published: October 2021

Marine clam is one of the main sources of arsenic (As), and the tidal flats of Jiangsu Province are considered major culturing areas for clams in mid-eastern China. In view of increasingly severe pollution in this region, concerns have been raised by the consumers with the safety of clams they purchased or may purchase. To address these concerns, we conducted a multi-year survey to determine the levels of As and As species in five major clam species cultivated in eight production areas of this region. Based on the above analysis data, Bayesian statistics used a Markov Chain Monte Carlo approach was applied to predict the toxic As residue distributions in clams produced in this region and their health risks to Chinese adults. It was found that the bioaccumulation ability of total As (tAs) and inorganic As (iAs) was species-specific, while Mactra veneriformis (MV) had the strongest accumulation capacity for toxic iAs (0.22–2.85 mg/kg dw). Up to 6.7% of the tested MV samples exceeding the iAs limit of China Food and Drug Administration. The content of iAs was also found to be related significantly to the harvest seasons, with clam in the spawning period (June) having the lowest iAs concentrations. The non-carcinogenic and carcinogenic health risk from dietary exposure to iAs associated with MV consumption was rather high, which suggested that specific attention should be paid to the safety of clam consumption in this region.
Clinical Pathway for the Diagnosis and Management of Patients With Relapsing–Remitting Multiple Sclerosis: A First Proposal for the Peruvian Population
Authors: Caparó-Zamalloa César , Velásquez-Rimachi Victor , Mori Nicanor , Dueñas-Pacheco Wenzel Ivan , Huerta-Rosario Andrely , Farroñay-García Chandel , Molina Roberto A. , Alva-Díaz Carlos 
Published: October 2021

Background: Relapsing–remitting multiple sclerosis (RRMS) is a subtype of degenerative inflammatory demyelinating disease of multifactorial origin that affects the central nervous system and leads to multifocal neurological impairment.Objectives: To develop a clinical pathway (CP) for the management of Peruvian patients with RRMS.Methods: First, we performed a literature review using Medline, Embase, Cochrane, ProQuest, and Science direct. Then, we structured the information as an ordered and logical series of five topics in a defined timeline: (1) How should MS be diagnosed? (2) How should a relapse be treated? (3) How should a DMT be initiated? (4) How should each DMT be used? and (5) How should the patients be followed?Results: The personnel involved in the care of patients with RRMS can use a series of flowcharts and diagrams that summarize the topics in paper or electronic format.Conclusions: We propose the first CP for RRMS in Peru that shows the essential steps for diagnosing, treating, and monitoring RRMS patients based on an evidence-based medicine method and local expert opinions. This CP will allow directing relevant clinical actions to strengthen the multidisciplinary management of RRMS in Peru.