bluuebunny/crossref_metadata_2025_split huggingface dataset:
kemampuan Menulis Teks Anekdot Dengan Menggunakan Model Pembelajaran Write Arround Pada Siswa Kelas X SMK Putra Jaya Stabat
Authors: Syahputra Donny , Beru Ginting Sri Ulina 
Published: March 2021

Penelitian ini bertujuan untuk mengetahui kemampuan menulis teks anekdot dengan menggunakan model pembelajaran write aroundpada siswa kelas X SMK Putra Jaya Stabat tahun pelajaran 2020/2021. Jenis penelitian ini adalah penelitian deskriptif kuantitatif. Desain yang digunakan dalam penelitian ini yaitu desain one shot case study. Berdasarkan hasil analisis data dapat disimpulkan bahwa kemampuan menulis teks anekdot siswa dengan menggunakan model pembelajaran write arround berada pada tingkat kategori baik dengan nilai rata-rata sebesar 77, dan standar ketuntasan kelas mencapai 78%. Jumlah siswa yang memiliki kemampuan menulis teks anekdot dengan kategori sangat baik sebanyak 8 orang atau 33,3%, yang berada pada kategori baik sebanyak 12 orang atau 50%, yang berada pada kategori cukup sebanyak 2 orang atau 8,3%, yang berada pada kategori kurang sebanyak 2 orang atau 8,3%, dan tidak ada siswa yang berada pada kategori sangat kurang.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TWO STAY TWO STRAY (TS-TS) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS XI IPA SMA NEGERI 1 SELESAI TAHUN PELAJARAN 2019/2020
Authors: Harleni Silvia 
Published: March 2021

Tujuan penelitian ini untuk mengetahui pengaruh model pembelajaran kooperatif tipe Two Stay Two Stray (TS-TS) terhadap kemampuan pemecahan masalah siswa. Penelitian ini merupakan penelitian eksperimen semu, dengan desain penelitian pre-test and post-test control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas XI IPA Negeri 1 Selesai Tahun Pelajaran 2019/2020, sedangkan sampel dalam penelitian ini adalah kelas XI IPA 3 yang berjumlah 32 siswa sebagai kelas eksperimen dan kelas XI IPA 4 yang berjumlah 30 siswa sebagai kelas kontol. Berdasarkan hasil penelitian mengungkapkan bahwa model pembelajaran kooperatif tipe Two Stay Two Stray (TS-TS) berpengaruh terhadap kemampuan pemecahan masalah siswa. Hal ini dapat dilihat dari nilai rata-rata kelas eksperimen adalah sebesar 73,63 dan nilai rata-rata kelas kontrol adalah sebesar 50,23. Terdapat pengaruh yang signifikan antara pembelajaran kooperatif tipe Two Stay Two Stray (TS-TS) terhadap pemahaman konsep matematika siswa yang dapat dilihat dari hasil perhitungan analisis data yang menggunakan uji-t dengan nilai thitung > ttabel (4,499 > 1,671) dengan derajat kebebasan (db) = 60, dengan taraf signifikan 0,05. Dengan demikian Ho ditolak dan Ha diterima, yang artinya rata-rata kemampuan pemecahan masalah siswa pada kelas eksperimen lebih besar dari rata-rata kemampuan pemecahan masalah siswa pada kelas kontrol. Hal ini berarti terdapat pengaruh penggunaan model pembelajaran kooperatif tipe tipe Two Stay Two Stray (TS-TS) terhadap kemampuan pemecahan masalah siswa di kelas XI IPA SMA Negeri 1 Selesai Tahun Pelajaran 2019/2020.
DAMPAK KEGIATAN EKSTRAKURIKULER TERHADAP PEMBENTUKKAN KARAKTER SISWA SMA NEGERI 1 BRANDAN BARAT
Authors: Saputri Lilis , Syaputra Djaka Setya 
Published: March 2021

Jenis penelitian ini adalah penelitian deskriptif kuantitatif. Tujuan penelitian ini adalah untuk mengetahui dampak kegiatan ekstrakurikuler terhadap pembentukkan karakter siswa SMA Negeri 1 Brandan Barat. Populasi dalam penelitian ini adalah siswa SMA Negeri 1 Brandan Barat. Sampel dalam penelitian ini adalah sebanyak 30 orang sampel dari anggota aktif yang tergabung dalam unit kegiatan ekstrakurikuler SMA Negeri 1 Brandan Barat. Berdasarkan hasil penelitian dan analisis data diperoleh setiap indikator pada angket pembentukkan karakter siswa di SMA Negeri 1 Brandan Barat diperoleh Trustworthiness sebesar 84,58 % kategori baik, Fairness sebesar 96,98% kategori sangat baik, Carring sebesar 85,20% kategori sangat baik, Respect sebesar 84,06% kategori baik, Citizenship sebesar 79,17% kategori baik, Responsibility sebesar 83,57 % kategori baik. Dapat disimpulkan bahwa setiap indikator untuk angket karakter siswa yang mengikuti ekstrakurikuler sangat baik. Hal ini memberikan dampak positif yang signifikan pada karakter siswa yang mengikuti ekstrakurikuler di SMA Negeri 1 Brandan Barat bahwa pada kegiatan ekstrakurikuler yang diikuti siswa akan membentuk karakter siswa SMA Negeri 1 Brandan Barat dilihat dari rata-rata persentase keseluruhan termasuk dalam kategori sangat tinggi.
UPAYA MENINGKATKAN HASIL BELAJAR SISWA DENGAN PENERAPAN MODEL PEMBELAJARAN CURAH PENDAPAT (BRAINSTORMING) MATA PELAJARAN PENDIDIKAN KEWARGANEGARAAN DI KELAS VII MTs. TPI SEI BAMBAN KECAMATAN BATANG SERANGAN
Authors: Alfalati Lutfi , Wibawa Surya 
Published: March 2021

Adapun tujuan penelitian ini adalah untuk meningkatkan hasil belajar siswa pada matapelajaran PKn dengan menerapkan Metode Pembelajaran Brainstorming di kelas VII MTs. TPI Sei Bamban Kecamatan Batang Serangan. Subjek penelitian ini adalah seluruh siswa kelas VII MTs. TPI Sei Bamban Kecamatan Batang Serangan yang berjumlah 40 orang. Adapun metode penelitian ini adalah penelitian tindakan kelas. Instrumen penelitian ini terdiri dari lembar observasi, dan lembar tes. Data tes dianalisis dengan menggunakan nilai rata-rata dan persentase ketuntasan belajar, sedangkan data observasi dianalisis dengan rata-rata skor,skor tertinggi, skor terendah, selisih skor dan kisaran untuk tiap kriteria. Adapun temuan penelitian ini adalah aktivitas guru pada siklus I diperoleh rata-rata skor 30,5 dengan kriteria baik dan pada siklus II rata-rata skor aktivitas guru meningkat menjadi 33 dengan kriteria baik. Untuk aktivitas siswa padasiklus I diperoleh rata-rata skor 23 dengan kriteria cukup dan pada siklus II rata-rata skor aktivitas siswa meningkat menjadi 30,5. Kemudian untuk hasil data tes siklus I mendapat nilai rata-rata 6,46 dengan ketuntasan belajar klasikal 50% danuntuk siklus II diperoleh nilai rata-rata 8,06 dengan ketuntasan belajar klasika l84,61%. Berdasarkan hasil penelitian tersebut dapat diambil kesimpulan bahwa melalui metode pembelajaran Brainstorming dapat meningkatkan hasil belajar siswa serta dapat meningkatkan aktivitas guru dansiswa dalam proses pembelajaran PKn khususnya di kelas VII MTs. TPI Sei Bamban Kecamatan Batang Serangan. Berdaasarkan hasil penerapan dengan model pembelaajaran Brainstorming dapat dijadikan sebagai bahan acuan untuk mengadakan penelitian selanjutnya dari sudut permasalahan yang berbeda.Selain itu dapat diimplementasikan sebagai bahan kajian pendekatan pembelajaran bagi guru untuk diterapkan di Kelas VII MTs. TPI Sei Bamban Kecamatan Batang Serangan sebagai alternative model pembelajaran.
RANCANG BANGUN APLIKASI PERAMALAN METODE SINGLE EXPONENTIAL SMOOTHING
Authors: - Zuhri 
Published: March 2021

Inflasi di Indonesia setiap tahun mengalami fluktuasi yang sangat signifikan. Data lima tahun terakhir adalah sebagai berikut 3.02%, 3.61%, 3.13%, 2.72%, 1.68%. Tentunya banyak faktor yang menyebabkan naik dan turunnya tingkat inflasi tersebut. Berdasarkan data inflasi Indonesia yang diambil dari tahun 2001 sampai tahun 2020, diramalkan tingkat inflasi tahun selanjutnya. Banyak metode yang digunakan dalam peramalan data. Salah satu metode tersebut adalah metode Exponential Smoothing. Untuk peramalan data pada jurnal ini menggunakan metode Single Exponential Smoothing. Dengan nilai parameter tertentu digunakan metode tersebut. Indikator dalam pemilihan paramater terbaik dengan menggunakan nilai MSE, MAD, dan MAPE. Berdasarkan perhitungan diperoleh metode Single Exponential Smoothing dengan parameter alpha 0.3 menghasilkan nilai MSE terkecil. Bentuk persamaannya adalah , dengan nilai MSE = 14.89, MAD = 2.92 dan nilai MAPE = 58.61, serta prediksi inflasi Indonesia tahun 2021 adalah 3.11%.
Factors Affecting the Failure of Patient Safety Target Indicators in the Regional Hospital of the Datu Beru Takengon Central Aceh
Authors: Syadudin Chairil , Simanjorang Asyiah , Jamaludin Jamaludin , Lastiur Lucia 
Published: March 2021

Work stress is caused by many factors from workplace, family, home, or environment. Excessive work stress will make someone anxious until developing excessive fatigue. Fatigue will decrease performance and increase work error rate that cause fatal workaccident.This study aimed to analyze influence of working stressors against nurses fatigue in patien room in haji hospital Medan. This study was quantitative method with a cross-sectional design, with a sample of 53 respondents. This study used questioners of the NIOSH Generic Job Stress Questionaire and Industrial Fatigue Research Committee which has been translated into Indonesian and has cheeked for validity and reliability. The results of the study regarding the influence work fatigue and work stress (P-value 0,000, r : 1,000), the influence workload and work fatigue (P-value 0,000, r : 1,000), the influence interpersonal conflict and work fatigue (P-value 0,000, r : 1,000), the influence job satisfaction and work fatigue (P-value 0,000, r : -0,588), the influence social support and work fatigue (P-value 0,000, r : -0,892), and based on the logistic regression test workload were variables the most influential, with an odds ratio of 94,5. The conclusion shows that workload is a variable that has strong influence on fatigue. Nurses with heavy workload are 94,5 times more likely to experience fatigue. So that the hospital needs to monitor and evaluate the performances of the nurses so the workload can be fixed and adjusted with the right capacity and ability of the nurses in providing services
Photon-dominated Hydrodynamics
Authors: Eichler David 
Published: March 2021

Abstract
Some subtle distinctions between optically thin emission and optically thick emission (with a dynamically passive source of opacity) from an emitting surface are drawn. It is noted that photons may escape a region of high optical depth by dragging the opaque material with them, and that optically thick emission can have a shorter scale of variation than optically thin emission and less light echoing.
Effects of Pseudostreamer Boundary Dynamics on Heliospheric Field and Wind
Authors: Aslanyan V. , Pontin D. I. , Wyper P. F. , Scott R. B. , Antiochos S. K. , DeVore C. R. 
Published: March 2021

Abstract
Interchange reconnection has been proposed as a mechanism for the generation of the slow solar wind, and a key contributor to determining its characteristic qualities. In this paper we study the implications of interchange reconnection for the structure of the plasma and field in the heliosphere. We use the Adaptively Refined Magnetohydrodynamic Solver to simulate the coronal magnetic evolution in a coronal topology containing both a pseudostreamer and helmet streamer. We begin with a geometry containing a low-latitude coronal hole that is separated from the main polar coronal hole by a pseudostreamer. We drive the system by imposing rotating flows at the solar surface within and around the low-latitude coronal hole, which leads to a corrugation (at low altitudes) of the separatrix surfaces that separate open from closed magnetic flux. Interchange reconnection is induced both at the null points and separators of the pseudostreamer, and at the global helmet streamer. We demonstrate that a preferential occurrence of interchange reconnection in the “lanes” between our driving cells leads to a filamentary pattern of newly opened flux in the heliosphere. These flux bundles connect to but extend far from the separatrix-web (S-Web) arcs at the source surface. We propose that the pattern of granular and supergranular flows on the photosphere should leave an observable imprint in the heliosphere.
Diurnal Variability and Detectability of Vegetation Red Edge of Earth-like Exoplanets
Authors: Wang Fei , He Jinping 
Published: March 2021

Abstract
The vegetation red edge (VRE) is a unique spectral fingerprint of light-harvesting vegetation on Earth and provides a robust remote detectable surface biosignature of exoplanets. To improve the detectability and sensitivity, we have studied the diurnal variability of VRE in the disk-integrated spectra of Earth and also Earth analogs in the case of different observing geometry conditions. Simulation results show that the VRE index varies from <−0.4 to >0.6 at a diurnal timescale for both present and also Late Triassic Earth, and the maximum variation of VRE in 1 day changes by >3 times with different observing geometry conditions. This means that the extraterrestrial light-harvesting vegetation (even if it really exists) will not be efficiently detectable without proper observing geometry conditions and time, especially in the case of the exoplanets covered with thick clouds. The VRE temporal variation curve can also be used to retrieve the cloud cover fraction and continent distribution of exoplanets with relatively high precision. Several observational strategies are proposed to detect the light-harvesting vegetation and retrieve the planetary information from the planet’s VRE variation signals, and a mock observation is also demonstrated.
LOFAR Observations of a Jet-driven Piston Shock in the Low Solar Corona
Authors: Maguire Ciara A. , Carley Eoin P. , Zucca Pietro , Vilmer Nicole , Gallagher Peter T. 
Published: March 2021

Abstract
The Sun produces highly dynamic and eruptive events that can drive shocks through the corona. These shocks can accelerate electrons, which result in plasma emission in the form of a type II radio burst. Despite the large number of type II radio burst observations, the precise origin of coronal shocks is still subject to investigation. Here, we present a well-observed solar eruptive event that occurred on 2015 October 16, focusing on a jet observed in the extreme ultraviolet by the Atmospheric Imaging Assembly (SDO/AIA), a streamer observed in white light by the Large Angle and Spectrometric Coronagraph (SOHO/LASCO), and a metric type II radio burst observed by the LOw Frequency Array (LOFAR). LOFAR interferometrically imaged the fundamental and harmonic sources of a type II radio burst and revealed that the sources did not appear to be cospatial, as would be expected from the plasma emission mechanism. We correct for the separation between the fundamental and harmonic using a model that accounts for scattering of radio waves by electron density fluctuations in a turbulent plasma. This allows us to show the type II radio sources were located ∼0.5R
⊙ above the jet and propagated at a speed of ∼1000 km s−1, which was significantly faster than the jet speed of ∼200 km s−1. This suggests that the type II burst was generated by a piston shock driven by the jet in the low corona.
Quality of Endodontic Treatment and Prevalence of Apical Radiolucencies in a Bulgarian Subpopulation: a CBCT Analysis
Authors: Karteva Teodora , Manchorova-Veleva Neshka A. , Karteva Ekaterina , Keskinova Donka , Kanazirska Petya , Jordanov Georgi , Vladimirov Stoyan 
Published: March 2021

Introduction: The advent of Cone Beam Computed Tomography (CBCT) in endodontics has enhanced the diagnosis of periapical radiolucencies and the assessment of endodontically treated teeth.&nbsp;
Aim: The purpose of this study was to assess the prevalence of periapical radiolucencies in a Bulgarian subpopulation and the quality of previous endodontic treatment using CBCT scans.
Materials and methods: This study included 2795 roots from 160 Large FOV CBCT which were evaluated by two independent examiners using two scoring systems: CBCT-PAI and PESS.&nbsp;
Results: The inter-examiner agreement spanned from strong to almost perfect (0.892 and 0.983). The prevalence of periapical lesions according to the two scoring systems was 23.1% and 12.9 %, respectively. The prevalence of endodontically treated teeth was high (34.1%). Sixty-five percent of them presented with signs of periapical radiolucencies, while only 1.4% of all non-treated roots had a periapical lesion. A significant association between periapical disease, poor quality of the root canal filling and inadequate coronal seal was found (p<0.001).&nbsp;
Conclusions: The prevalence of periapical disease in endodontically-treated teeth in the Bulgarian subpopulation was high. Poor qual-ity of the root canal filling and inadequate coronal seal were assessed as prognostic determinants of treatment failure. CBCT techniques can augment conventional diagnostic techniques in the field of endodontics.&nbsp;
Antimicrobial properties, anti-virulence activities, and physico-mechanical characteristics of orthodontic adhesive containing C-phycocyanin: a promising application of natural products
Authors: Pourhajibagher Maryam , Bahador Abbas 
Published: March 2021

Introduction: Antimicrobial orthodontic adhesives aim to reduce enamel demineralization, white spot lesions, and incipient tooth decay around bonded orthodontic brackets, but they should not imperil its mechanical properties.&nbsp;
Aim: To evaluate the antimicrobial and physico-mechanical properties of acrylic containing different concentrations of C-phycocyanin on Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans.
Materials and methods: The mechanical properties of acrylic resins were measured by flexural strength test after preparation of acrylic resin samples with concentrations of 1%, 2%, 5%, 7.5%, and 10% of C-phycocyanin. Then we evaluated the antimicrobial effects of acrylic resin containing the maximum concentration of C-phycocyanin with clinically acceptable flexural strength and the changes in expression of virulence factors.
Results: The highest and lowest means of flexural strength were obtained in acrylic resins containing 0% and 10% concentrations of C-phycocyanin at 50.2&plusmn;4.5 and 30.1&plusmn;3.3 MPa, respectively. Adding 1%, 2%, and 5% of C-phycocyanin showed no significant decrease in flexural strength (p>0.05). The maximum mean diameter of the growth inhibition zone was observed around discs containing 5% of C-phycocyanin. Until day 30 of the study, no microbial biofilms were formed on any acrylic disc. Only microbial biofilms of C. albicans were able to form on discs containing 5% of C-phycocyanin at 90 days. 5% C-phycocyanin could significantly decrease the expression levels of gtfB, hsp16, and ALS9 6.1-, 7.3-, and 3.9-fold, respectively.
Conclusions: It can be concluded that the most acceptable concentration of C-phycocyanin in acrylic resin is 5% based on the results of flexural strength tests and antimicrobial activities of acrylic resin containing various concentrations of C-phycocyanin.
Trajectory of Healthcare Resource Utilization in Giant Cell Arteritis: A Population-based Study
Authors: Mohammad Aladdin J. , Turkiewicz Aleksandra , Stamatis Pavlos , Turesson Carl , Englund Martin , Kiadaliri Ali 
Published: March 2021

ObjectiveTo estimate the healthcare resource utilization (HRU) in patients with giant cell arteritis (GCA) compared with the general population in southern Sweden.MethodsThe study sample comprised 653 patients with GCA along with 10 age-, sex-, and residency area–matched reference subjects per patient. Data on public and private healthcare consultations and hospitalizations were extracted from the Skåne Healthcare Register. We assessed trajectories of primary and specialist healthcare visits, as well as hospital admissions and inpatient days from 3 years before through 5 years after the date of GCA diagnosis for patients and matched references. HRU was analyzed using generalized estimating equations adjusted for sex, age at the index year, calendar year of diagnosis, education, income, marital status, place of birth, and Charlson Comorbidity Index. Inverse probability weighting was used to account for dropout during study.ResultsPatients with GCA had higher rates of healthcare visits than the references from the year before GCA diagnosis and up to 4 years after diagnosis, with the largest relative (rate ratio 1.85, 95% CI 1.68–2.05) and absolute (mean difference 10.2, 95% CI 8.1–12.3 visits per person) differences in the year of diagnosis. Similar trajectories were observed for primary and specialist healthcare visits. For hospital admissions and inpatient days, the differences disappeared 1 year after diagnosis date.ConclusionPatients with GCA utilized healthcare services at a significantly higher rate than the reference population. The increased utilization among Swedish patients with GCA was evident 1 year before and prolonged up to 4 years after diagnosis date.
Relationship Between the Dynamics of Telomere Loss in Peripheral Blood Leukocytes From Knee Osteoarthritis Patients and Mitochondrial DNA Haplogroups
Authors: Fajardo Rebeca Guillén , Fariña Fátima Otero , Rey Alejandro Mosquera , Rego-Pérez Ignacio , Blanco Francisco J. , García José Luis Fernández 
Published: March 2021

ObjectiveTo evaluate the evolution of telomere length from peripheral blood leukocytes (PBLs) in subjects from the Osteoarthritis Initiative (OAI) cohort in relation to the incidence of osteoarthritis (OA), and to explore its possible interactive influence with the mitochondrial DNA (mtDNA) haplogroup.MethodsDynamics of telomere sequence loss were quantified in PBLs from initially healthy individuals (without symptoms or radiological signs), 78 carrying the mtDNA cluster HV, and 47 with cluster JT, from the OAI, during a 72-month follow-up period. The incidence of knee OA during this period (n = 39) was radiographically established when Kellgren-Lawrence (KL) score increased from < 2 at recruitment, to ≥ 2 at the end of 72 months of follow-up. Multivariate analysis using binary logistic regression was performed to assess PBL telomere loss and mtDNA haplogroups as associated risk factors of incidence of knee OA.ResultsCarriers of cluster HV showed knee OA incidence twice that of the JT carriers (n = 30 vs 9). The rate of PBL telomere loss was higher in cluster HV carriers and in individuals with incident knee OA. Multivariate analysis showed that the dynamics of PBL telomere shortening can be a consistent risk marker of knee OA incidence. Subjects with nonincident knee OA showed a slower telomere loss than those with incident knee OA; the difference was more significant in carriers of cluster JT than in HV.ConclusionAn increased rate of telomere loss in PBLs may reflect a systemic accelerated senescence phenotype that could be potentiated by the mitochondrial function, increasing the susceptibility of developing knee OA.