bluuebunny/crossref_metadata_2025_split huggingface dataset:
PROFIL GAYA BELAJAR SISWA BERPRESTASI AKADEMIK DI KELAS 4 SEKOLAH DASAR
Authors: Oktaviani Ika Mei 
Published: October 2021

<p class="16aJudulAbstrak">Penelitian ini bertujuan untuk mengetahui proses gaya belajar siswa berprestasi akademik terbaik yang berada dikelas maupun di lingkungan rumahnya dan untuk mengetahui langkah seorang guru dalam menerapkan pembelajaran yang dianggap efektif terhadap proses gaya belajar siswa yang sangat berprestasi. Penelitian di laksnakan di sdn Cipelang Gede dan di rumah subjek penelitian.Metode yang digunakan adalah metode deskriptif.alat pengumpul data yangdi gunakanadalah, wawancara, lembar tes modalitas , dan observasi pengolahan data dilakukan dengan tes modalitas hasil penelitian menunjukan memiliki gaya belajar kinestetik yang mempunyaibakata seni tari. Dalam penelitian ini tes modalitas adalah penentu dalam suatu pegolahan data. Penyebab subjek memiliki gaya belajar kinestetikyaitu subjek menyukai seni tari dari kecil, suka mengikuti sanggarseni senng sekali dalam seni tari.<em></em></p>
Upaya Meningkatan Hasil Belajar Peserta Didik Mata Pelajaran Matematika Tentang Materi Peluang Melalui Model Pembelajaran Cooperatif Learning Type Snowball Throwing di Kelas XII MIPA
Authors: Verry Rahayu 
Published: October 2021

<p>Penelitian ini bertujuan untuk (1) mengetahui hasil belajar peserta didik pada pelajaran Matematika tentang Peluangdengan menggunakan model pembelajaran Cooperatif Learning type Snowball Throwing sehingga dapat meningkatkan aktivitas dan hasil belajar peserta didik di kelas XII MIPA 7SMA Negeri 2 Bogor Tahun Pelajaran 2018 / 2019, (2) mengetahui proses peningkatan hasil belajar peserta didik pada mata pelajaran Matematika tentang Peluang melalui model pembelajaran Snowball Throwing XII MIPA7SMA Negeri 2 Bogor semester genap Tahun Pelajaran 2018 / 2019, (3) mengukur besarnya peningkatan hasil belajar peserta didik pada mata pelajaran Matematika tentang Peluangmelalui model pembelajaran Snowball Throwingdi kelas XII MIPA7 SMA Negeri 2 Bogor Semester genap Tahun Pelajaran 2018 / 2019. Hasil penelitian ini menunjukkan bahwa dengan menggunakan model pembelajaran Snowball Throwing dapat menjadi variasi pembelajaran yang menyenangkan bagi peserta didik sehingga terbukti meningkatkan hasil belajar peserta didik di kelas XII MIPA7SMA Negeri 2 Bogor semester genap Tahun Pelajaran 2018 / 2019. Sebelum menggunakan model pembelajaran Snowball Throwinghasil belajar peserta didik hanya mencapai nilai rata-rata kelas 64,25 kemudian terjadi peningkatan setelah menggunakan model pembelajaran Snowball Throwing menjadi 79.89 pada siklus 1 dan 91,94 pada siklus 2.</p>
PENGENALAN MATEMATIKA REALISTIK KEPADA MASYARAKAT BELAJAR DI KELURAHAN IRINGMULYO
Authors: Wulantina Endah , Soeseno Zahwa Eza , Arsita Farida , Loviana Selvi , Amri Annisa Ayu Ulil , Merliza Pika 
Published: October 2021

Tujuan dari pengabdian ini adalah diharapkan masyarakat belajar jenjang kelas 4 sekolah dasar (SD) di sekitar kawasan tersebut tidak merasa kesulitan lagi dalam memahami pelajaran matematika setelah dikenalkannya pembelajaran yang mengaitkan matematika dengan kehidupan sehari-hari (Matematika Realistik). Pengabdian ini menggunakan pendekatan kualitatif dengan metode desrkiptif. Alat peraga yang digunakan dalam pengabdian ini adalah jajanan tradisional berbentuk segitiga dan tempe. Pengabdian dilakukan selama 4 kali pertemuan dengan 20 orang siswa. Hasil evaluasi pelaksanaan dari pengabdian masyarakat : 1) Masyarakat belajar pada jenjang sekolah dasar (SD) mendapatkan pengetahuan baru dan pengalaman belajar matematika dengan menggunakan Matematika Realistik (MR). 2) Pembelajaran menggunakan Matematika Realistik (MR) meningkatkan minat dan keingintahuan siswa terhadap matematika. 3) Dengan digunakannya pembelajaran Matematika Realistik (MR), pemahaman siswa tentang matematika menjadi lebih mudah, sehingga matematika tidak lagi dianggap sulit. 4) Proses pembelajaran menjadi lebih berwarna dan berarti dengan digunakannya pembelajaran Matematika Realistik (MR). 5) Masyarakat belajar merasa matematika adalah pelajaran yang menyenangkan dilihat dari keantusiasan mereka saat proses pembelajaran sedang berlangsung.
Distribuição espacial e temporal dos casos de sífilis materna no estado do Rio Grande do Norte
Authors: Viega Natália de Oliveira , Guedes Gabriela Souza Damásio , Silva Bárbara Coeli Oliveira da , Silva Fladjany Emanuelly Faustino da , Santos Marina Marisa  Palhano dos , Feijão Alexsandra Rodrigues 
Published: October 2021

Objetivo: Descrever a distribuição espacial e temporal dos casos confirmados de sífilis materna no estado do Rio Grande do Norte no período de 2008 a 2018. Métodos: Trata-se de um estudo ecológico com distribuição espacial e temporal. Foram utilizados os casos confirmados de sífilis materna, com base nas informações da ficha de notificação compulsória do Sistema de Informação de Agravos de Notificação para o período de 2008 a 2018. Resultados: No período do estudo foram confirmados 2.468 casos de sífilis em gestantes, dos quais 51,4% tinham idade entre 20 e 29 anos, 60% delas se autodeclararam pardas e 24,1% possuíam escolaridade de 5a a 8a série incompleta. 42,8% obtiveram a confirmação da sífilis apenas no terceiro trimestre. Quanto à taxa de incidência, houve aumento significativo no decorrer dos anos, sendo a menor registrada no ano de 2008 (0,33) e a maior no ano de 2017 (1,22). Conclusão: A sífilis materna constitui um grave problema de saúde pública e o aumento da sua incidência evidencia falhas nos serviços. Portanto, os resultados obtidos pelo estudo poderão ser úteis no monitoramento das áreas com maior incidência, contribuindo, assim, para a implementação de estratégias eficazes na redução dos casos. Entretanto, se fazem necessários estudos de avalição dos serviços de saúde a fim de identificar fragilidades na atenção aos casos de sífilis materna.
Left Ventricular Longitudinal Dyssynchrony by CMR Feature Tracking Is Related to Adverse Prognosis in Advanced Arrhythmogenic Cardiomyopathy
Authors: Song Yanyan , Li Lu , Chen Xiuyu , Ji Keshan , Lu Minjie , Hauer Richard , Chen Liang , Zhao Shihua 
Published: October 2021

Objectives: Left ventricular (LV) involvement has been associated with unfavorable prognosis in arrhythmogenic cardiomyopathy (ACM). We aim to evaluate LV mechanics by cardiovascular magnetic resonance-feature tracking (CMR-FT) in ACM patients with right ventricular (RV) dysfunction.Methods: We retrospectively recruited ACM patients diagnosed according to the revised Task Force Criteria (rTFC) from January 2015 to July 2017. All patients underwent CMR examinations and collections of clinical, electrocardiographic data. The strain and dyssynchrony parameters of LV and RV were analyzed. These patients were followed, and primary study outcome was defined as a composite of cardiovascular events (arrhythmic events and heart transplantation), secondary study outcome included arrhythmic events.Results: Eighty-nine ACM patients (40.40 ± 13.98 years, 67.42% male) were included. LV and RV ejection fractions were 49.12 ± 12.02% and 22.28 ± 10.11%, respectively. During a median (IQR) follow-up for 18.20 (11.60-30.04) months, 30 patients experienced cardiovascular events which included 22 patients who experienced arrhythmic events. Patients with cardiovascular events had impaired LV global longitudinal strain (−10.82 ± 2.77 vs. −12.61 ± 3.18%, p = 0.010), impaired LV global circumferential strain (−11.81 ± 2.40 vs. −13.04 ± 2.83%, p = 0.044), and greater LV longitudinal dyssynchrony (LVLD) (80.98 ± 30.98 vs. 64.23 ± 25.51 ms, p = 0.012) than those without. After adjusting for age, sex, and other confounding factors, LVLD ≥89.15 ms was an independent risk factor for cardiovascular events (HR: 4.50, 95% CI: 1.94 to 10.42; p = 0.001) and for arrhythmic events (HR: 4.79, 95% CI: 1.74 to 13.20; p = 0.003).Conclusions: LVLD by CMR-FT was an independent risk factor for cardiovascular and arrhythmic events in ACM patients in advanced stage, which could provide prognostic value for this subtype.
Videoconferencing Software Options for Telemedicine: A Review for Movement Disorder Neurologists
Authors: Cubo Esther , Arnaiz-Rodriguez Adrian , Arnaiz-González Álvar , Díez-Pastor José Francisco , Spindler Meredith , Cardozo Adriana , Garcia-Bustillo Alvaro , Mari Zoltan , Bloem Bastiaan R. 
Published: October 2021

Background: The use of telemedicine has increased to address the ongoing healthcare needs of patients with movement disorders.Objective: We aimed to describe the technical and basic security features of the most popular telemedicine videoconferencing software.Methods: We conducted a systematic review of articles/websites about “Telemedicine,” “Cybersecurity,” and “Videoconferencing software.” Technical capabilities and basic security features were determined for each videoconferencing software.Results: Twenty-six videoconferencing software programs were reviewed, 13 (50.0%) were specifically designed for general healthcare, and 6/26 (23.0%) were compliant with European and US regulations. Overall technical and security information were found in 5/26 software (19.2%), including Microsoft Teams, Google Hangout, Coviu, Doxy.me, and Thera platforms.Conclusions: Detailed information about technical capabilities and data security of videoconferencing tools is not easily and openly retrievable. Our data serves as a guide for practitioners seeking to understand what features should be examined when choosing software and what options are available.
Prevalence and Molecular Epidemiology of Transmitted Drug Resistance and Genetic Transmission Networks Among Newly Diagnosed People Living With HIV/AIDS in a Minority Area, China
Authors: Yuan Dan , Yu Bin , Li Yiping , Wang Zixin , Liu Meijing , Ye Li , Huang Yuling , Su Ling , Zhang Yan , Api Laze , Chen Maogang , Zhou Chang , Liu Li , Zhang Linglin , Liang Shu , Jia Peng , Yang Shujuan 
Published: October 2021

Introduction: Transmitted drug resistance (TDR) can compromise antiretroviral therapy (ART) efficacy. We aimed to understand the molecular epidemiology of TDR and its genetic transmission networks among newly diagnosed people living with HIV/AIDS (PLWH).Methods: A total of 1,318 newly diagnosed PLWH, identified in all population-based HIV screening in an HIV-affected county of a minority area of China (i.e., Butuo county), were enrolled between January 1, 2018, and November 31, 2018. HIV-1 pol gene sequences were used for phylogenetic and genotypic drug resistance analyses. The genetic transmission networks were identified.Results: The prevalence of TDR among newly diagnosed PLWH was 8.12% (107/1,318). Patients in the stage of AIDS (adjusted odds ratio, OR: 2.32) and who had a history of sharing a needle ≥5 times (adjusted OR: 3.89) were more likely to have an increased risk of TDR. The prevalence of TDR for non-nucleoside reverse transcriptase inhibitors (NNRTIs) is higher than that of other inhibitors, with a relatively high prevalence of three mutations [V179D/E/DE (4.93%), K103N/KN (3.11%), and E138A/G (1.52%)]. A total of 577 (43.78%) pol sequences were involved in the genetic transmission network, with 171 clusters ranging in size from 2 to 91 pol sequences; 37.38% (40/107) of individuals carrying TDR were involved in the network, and individuals with the same TDR-associated mutations were usually cross-linked.Conclusions: Our data suggest a relatively high level of TDR and many transmission clusters among the newly diagnosed PLWH. Targeted intervention, early identification, and monitoring of resistance are warranted to reduce the TDR and prevent HIV-1 transmission in areas with a high rate of HIV-1.
Health Worker Absenteeism in Selected Health Facilities in Enugu State: Do Internal and External Supervision Matter?
Authors: Obodoechi Divine Ndubuisi , Onwujekwe Obinna , McKee Martin , Angell Blake , Agwu Prince , Orjiakor Charles , Nwokolo Chukwudi , Odii Aloysius , Hutchinson Eleanor , Balabanova Dina 
Published: October 2021

Background: Absenteeism is widespread in Nigerian health facilities and is a major barrier to achievement of effective Universal Health Coverage. We have examined the role of internal (by managerial staff within facilities) and external (by managers at a higher level) supervision arrangements on health worker absenteeism. Specifically, we sought to determine whether these forms of supervision have any role to play in reducing health worker absenteeism in health facilities in Enugu State Nigeria.Methods: We conducted interviews with 412 health workers in urban and rural areas of Enugu State, in South-Eastern Nigeria. We used binary logistic regression to estimate the role of different types of supervision on health worker absenteeism in selected health facilities in Enugu State.Results: Internal supervision arrangements significantly reduce health worker absenteeism (odds ratio = 0.516, p = 0.03). In contrast, existing external supervision arrangements were associated with a small but significant increase in absenteeism (OR = 1.02, 0.043). Those reporting a better financial situation were more likely to report being absent (OR = 1.36, p &lt; 0.01) but there was no association with age and marital status of respondents. Our findings also pointed to the potential for alternative forms of supervision, provided in a supportive rather than punitive way, for example by community groups monitoring the activities of health workers but trying to understand what support these workers may need, within or beyond the work environment.Conclusion: The existing system of external supervision of absenteeism in health facilities in Nigeria is not working but alternatives that take a more holistic approach to the lived experiences of health workers might offer an alternative.
Loops around the Heme Pocket Have a Critical Role in the Function and Stability of BsDyP from Bacillus subtilis
Authors: Rodrigues Carolina F. , Borges Patrícia T. , Scocozza Magali F. , Silva Diogo , Taborda André , Brissos Vânia , Frazão Carlos , Martins Lígia O. 
Published: October 2021

Bacillus subtilis BsDyP belongs to class I of the dye-decolorizing peroxidase (DyP) family of enzymes and is an interesting biocatalyst due to its high redox potential, broad substrate spectrum and thermostability. This work reports the optimization of BsDyP using directed evolution for improved oxidation of 2,6-dimethoxyphenol, a model lignin-derived phenolic. After three rounds of evolution, one variant was identified displaying 7-fold higher catalytic rates and higher production yields as compared to the wild-type enzyme. The analysis of X-ray structures of the wild type and the evolved variant showed that the heme pocket is delimited by three long conserved loop regions and a small α helix where, incidentally, the mutations were inserted in the course of evolution. One loop in the proximal side of the heme pocket becomes more flexible in the evolved variant and the size of the active site cavity is increased, as well as the width of its mouth, resulting in an enhanced exposure of the heme to solvent. These conformational changes have a positive functional role in facilitating electron transfer from the substrate to the enzyme. However, they concomitantly resulted in decreasing the enzyme’s overall stability by 2 kcal mol−1, indicating a trade-off between functionality and stability. Furthermore, the evolved variant exhibited slightly reduced thermal stability compared to the wild type. The obtained data indicate that understanding the role of loops close to the heme pocket in the catalysis and stability of DyPs is critical for the development of new and more powerful biocatalysts: loops can be modulated for tuning important DyP properties such as activity, specificity and stability.
A Flexible Single Loop Setup for Water-Borne Transient Electromagnetic Sounding Applications
Authors: Aigner Lukas , Högenauer Philipp , Bücker Matthias , Flores Orozco Adrián 
Published: October 2021

Water-borne transient electromagnetic (TEM) soundings provide the means necessary to investigate the geometry and electrical properties of rocks and sediments below continental water bodies, such as rivers and lakes. Most water-borne TEM systems deploy separated magnetic transmitter and receiver loop antennas—typically in a central or offset configuration. These systems mostly require separated floating devices with rigid structures for both loop antennas. Here, we present a flexible single-loop TEM system, the light-weight design of which simplifies field procedures. Our system also facilitates the use of different geometries of the loop antenna permitting to adjust the depth of investigation (DOI) and the minimum sounding depth in the field. We measure the turn-off ramp with an oscilloscope and use the DOI to assess the minimum and maximum exploration depth of our single-loop TEM system, respectively. A reduction of the loop-antenna size improves early-time TEM data due to a reduced length of the turn-off ramp, whereas an increase of the loop-antenna size enhances the signal strength at late times, which allows to investigate deeper structures below the lake bed. We illustrate the capabilities of our system with a case study carried out at Lake Langau in Austria. Our results show that our system is capable of reaching a DOI of up to 50 m (with a maximum radius of the circular loop of 11.9 m), while it also resolves the water layer down to a minimum thickness of 6.8 m (when the radius is reduced to 6.2 m).
Economic return on investments in research and development (R&D) in pine and eucalyptus plantations in Brazil
Authors: Silva Vinicius Evangelista , Mageste José Geraldo , Guimarães Vieira João Paulo , Tessarollo Ribeiro Otávio Augusto , Janni Vanessa 
Published: October 2021

Currently, public and private resources are directed towards the development of Research and Development (R&D) projects in the Brazilian forestry area. But, many times, such investments are used only as corporate advertising, without the knowledge of their real return, underestimating the importance of R&D in the development of organizations in this sector. Hence the importance of studies that seek to evaluate investment returns and how profitable they are for society and for technological innovation. The objective of this study was to evaluate the possible economic return of R&D in the Brazilian Forest Sector, in particular, its effects on increasing the productivity of pine and eucalyptus stands. Through the publications of the Statistical Yearbook of the Brazilian Association of Planted Forest Producers (ABRAF) it was possible to understand the relationship between investments in R&D, planted area and annual current wood productivity, using an indicator that related Investments and Revenue in the R&D of organizations Brazilian forestry companies of this Association. It can be inferred that for every R $ 1.00 invested in R&D projects, an average return of R $ 16.02 is obtained in such organizations. It was also concluded that the marginal gains in annual wood productivity correlated positively and significantly with investments in R&D (r = 0.43). Thus, investments in R&D made by silvicultural organizations translate into an economic return for them, as well as that their absence can stagnate the increase in wood productivity.
High-sensitivity three-core photonic crystal fiber sensor based on surface plasmon resonance with gold film coatings
Authors: Yang Youpeng , Qin Yafei , Lu Xinyu , Zeng Yu 
Published: October 2021

Abstract
A high-sensitivity three-core photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) is proposed in this paper. The gold film is selected as the plasmonic metal and coated on the outside surface of the PCF to excite the SPR phenomenon. There are three different diameter air holes of d1, d2, and d3 distributed on the cross-section of the sensor. Among them, sensor performance can be affected by changing the diameter of the central hole and the thickness of the gold film. The sensor shows the maximum confinement loss value and spectral sensitivity of 50 dB cm−1 and 30600 nm RIU−1, respectively, at analyte RI (na = 1.41), and the corresponding maximum resolution is 3.27 × 10–6. The above simulation result shows that the sensor has excellent performance, thus laying the foundation for future research.
Optical transfer function of inverse-phase composite zone plate devised for deep-focusing X-ray microscopes
Authors: Kagoshima Yasushi , Takayama Yuki 
Published: October 2021

Abstract
The optical transfer function (OTF) of an inverse-phase composite zone plate under incoherent illumination was numerically evaluated by convoluting the point spread function (PSF) and transmission distribution of a model sample with gradually changing spatial frequency. The PSF used in the simulation was obtained from our previous study on deep-focusing X-ray microscopes. As expected, the contrast in the sample image was lesser than that produced by a conventional zone plate. Phase-reversed contrast—spurious resolution—appeared at a high spatial frequency. Although the calculated OTF is slightly aberrated, its deep-focusing capability is advantageous for X-ray microimaging of thick samples.
Preparation of Cu2SnS3 thin film by sol-gel dip coating
Authors: Igarashi Yuki , Tomono Takuya , Tanaka Kunihiko , Moriya Katsuhiko 
Published: October 2021

Abstract
Cu2SnS3 (CTS), an environmentally friendly semiconductor material that has little impact on the human body, was developed as an alternative material to silicon-based solar cells, which are currently the mainstream product in the solar cell market. In this study, by adopting the sol-gel dip coating method, a CTS thin film was produced at low cost without using a vacuum process for use as a solar cell light absorption layer. CTS thin films were prepared while varying the annealing temperature and the amount of α-cyclodextrin added, and the results were compared by different evaluation methods. In addition, the samples to which α-cyclodextrin was added showed peaks due to CTS at (112) and (220) in all the samples. The crystallinity was not found to depend on the amount of α-cyclodextrin added.
Sistem Informasi Pembayaran SPP Berbasis WEB pada SMK Muhammadiyah 11 Jakarta Pusat
Authors: Pangestuti Azizah Shyam , Wijanarko Rony 
Published: October 2021

Pemanfaatan Teknologi Informasi dan Komunikasi (TIK) pada bidang pendidikan belum maksimal. Salah satunya yaitu pengelolaan data pembayaran SPP di sebagian sekolah masih menggunakan cara konvensional dan belum terkomputerisasi. Berdasarkan permasalahan yang ada, maka penelitian ini bertujuan untuk mengembangkan sebuah sistem informasi berbasis web yang dapat membantu pengelolaan data pembayaran SPP, serta dapat membantu pengelolaan data pembayaran SPP menjadi lebih baik. Metode penelitian yang digunakan yaitu metode waterfall untuk pengembangannya yang meliputi empat tahap, yaitu analisis, desain, implementasi, dan pengujian. Sistem informasi berbasis web ini dikembangkan menggunakan PHP dan MySQL, serta untuk tampilan antarmuka menggunakan HTML5 dan CSS3 sebagai media mendesain web dan menggabungkan antara layout dengan bahasa pemrograman. Pengujian dilakukan dengan menguji function pada kode yang dibuat dan fungsional dengan menguji link, button dan menu-menu yang ada dan memastikan bahwa semua bagian telah diuji. Hasil dari penelitian ini yaitu sistem informasi pembayaran SPP berbasis dikembangkan dengan menggunakan PHP dan MySQL. Tahap pengembangannya meliputi tahap analisis kebutuhan, tahap desain, tahap implementasi, dan tahap pengujian.