bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Knowledge and Attitude of Parents About the Dental Treatment of Their Children During the New Type of Coronavirus Outbreak in Northern Cyprus
Authors: Ekinci Ayse , Tosun Ozgur , Islam Aylin 
Published: February 2022

BackgroundThe aim of this study was to assess the knowledge and attitude of parents living in Northern Cyprus about the oral care and dental treatments of their children during the outbreak of the new type of Coronavirus (COVID-19).MethodsAn online self-administered questionnaire was conducted consisting of 33 questions. A total of 256 parents participated in this study. The questionnaire was divided into two parts. The first part consists of demographic information and the second part consists of the awareness and knowledge of parents about dental treatments during COVID-19. SPSS software was used for statistical data analysis.ResultsIn total, 81.9% of the mothers and 59.6% of the fathers stated that their children could be infected with COVID-19 during dental treatments and were apprehensive about their children undergoing such treatment because of the outbreak. Participants were asked about their knowledge regarding the transmission of COVID-19 through air droplets during dental treatments and the findings revealed that mothers (89.5%) were more aware of this than fathers (77.2%). The majority of the participants (77%) stated that their children could become infected with COVID-19 during dental treatments and were apprehensive about their children undergoing such treatment because of the outbreak; however, 65.1% did not take any extra precautions regarding their children's oral health and care.ConclusionThe majority of the parents in Northern Cyprus have good knowledge about dental clinics being one of the high-risk areas where COVID-19 can be transmitted by aerosols from infected people. However, further steps need to be taken to strengthen parents' motivations for home oral care and more studies are needed to assess the continuing impact of the COVID-19 pandemic on parents' attitudes toward and knowledge about dental procedures.
Clinical Comparison of a Novel Balloon-Expandable Versus a Self-Expanding Transcatheter Heart Valve for the Treatment of Patients with Severe Aortic Valve Stenosis: The EVAL Registry
Authors: Barki Monica , Ielasi Alfonso , Buono Andrea , Maliandi Gabriele , Pellicano Mariano , Bande Marta , Casilli Francesco , Messina Francesca , Uccello Giuseppe , Briguglia Daniele , Medda Massimo , Tespili Maurizio , Donatelli Francesco 
Published: February 2022

Background: Transcatheter aortic valve replacement (TAVR) is an effective treatment option for patients with severe, symptomatic AS, regardless of the transcatheter heart valve (THV) implanted. Prior studies demonstrated a higher device success with lower paravalvular leak (PVL) using the balloon-expandable (BE) Sapien/XT THV vs. a self-expanding (SE) THV. However, few data are available on the performance of a novel BE THV. Purpose: to compare early clinical performance and safety of the newly available BE Myval THV (Myval, Meril Life Sciences Pvt. Ltd., India) vs. the commonly used SE (Evolut R, Medtronic) THV. Methods: A single-center, retrospective cohort analysis was performed with 166 consecutive patients undergoing TAVR from March 2019 to March 2021 for severe symptomatic AS treated with either the novel BE Myval or the SE Evolut R (ER) bioprosthesis. The primary endpoint was device success at day 30 according to the Valve Academic Research Consortium-3 (VARC-3). Secondary endpoints included 30-day all-cause mortality, cardiovascular mortality, more than mild PVL, permanent pacemaker implantation (PPI) rates and a composite of all-cause mortality and disabling stroke at 6 months. Results: Among the 166 included patients, 108 patients received the SE ER THV and 58 patients were treated with the BE Myval THV. At baseline, the two groups showed comparable demographic characteristics. The primary composite endpoint of early device success occurred in 55 patients (94.8%) in the BE Myval group and in 90 patients (83.3%) in the SE ER group (OR 3.667, 95% CI 1.094–12.14; p = 0.048). At day 30, the BE Myval THV group exhibited a significantly lower incidence of more than mild PVL (BE Myval 3.45% vs. SE ER 14.8%, OR 0.2, 95% CI 0.05–0.8; p = 0.0338), along with a lower rate of PPI (BE Myval 11% vs. SE ER 24.2%, OR 0.38, 95% CI 0.15–0.99; p = 0.0535). At the 6-month follow-up, the incidence of all-cause mortality and disabling stroke did not significantly differ between the two groups, while the incidence of PPI (BE Myval 11% vs. SE ER 27.5%, OR 0.32, CI 95% 0.1273–0.8; p = 0.02) and ≥moderate PVL (BE Myval 6.9% vs. SE ER 19.8%, OR 0.31, 95% CI 0.1–0.94; p = 0.0396) was significantly lower in the BE Myval group. Conclusions: In patients with severe symptomatic AS undergoing TAVR, the novel Myval BE THV provided a comparable performance to the well-known ER SE THV, and it was associated with a lower rate of PPI and ≥moderate PVL within 30 days and 6 months after the procedure. Randomized, head-to-head comparison trials are needed to confirm our results.
A Semianalytical Algorithm for Estimating Water Transparency in Different Optical Water Types from MERIS Data
Authors: Msusa Anastazia Daniel , Jiang Dalin , Matsushita Bunkei 
Published: February 2022

Water transparency (or Secchi disk depth: ZSD) is a key parameter of water quality; thus, it is very important to routinely monitor. In this study, we made four efforts to improve a state-of-the-art ZSD estimation algorithm that was developed in 2019 on the basis of a new underwater visibility theory proposed in 2015. The four efforts were: (1) classifying all water into clear (Type I), moderately turbid (Type II), highly turbid (Type III), or extremely turbid (Type IV) water types; (2) selecting different reference wavelengths and corresponding semianalytical models for each water type; (3) employing an estimation model to represent reasonable shapes for particulate backscattering coefficients based on the water type classification; and (4) constraining likely wavelength range at which the minimum diffuse attenuation coefficient (Kd(λ)) will occur for each water type. The performance of the proposed ZSD estimation algorithm was compared to that of the original state-of-the-art algorithm using a simulated dataset (N = 91,287, ZSD values 0.01 to 44.68 m) and an in situ measured dataset (N = 305, ZSD values 0.3 to 16.4 m). The results showed a significant improvement with a reduced mean absolute percentage error (MAPE) from 116% to 65% for simulated data and from 32% to 27% for in situ data. Outliers in the previous algorithm were well addressed in the new algorithm. We further evaluated the developed ZSD estimation algorithm using medium resolution imaging spectrometer (MERIS) images acquired from Lake Kasumigaura, Japan. The results obtained from 19 matchups revealed that the estimated ZSD matched well with the in situ measured ZSD, with a MAPE of 15%. The developed ZSD estimation algorithm can probably be applied to different optical water types due to its semianalytical features.
Hematuria y Síndrome de Cascanueces
Authors: Hernández Quirós Thania , Villachica Madriz Allison 
Published: February 2022

En términos sencillos la hematuria es la presencia de sangre en orina. La misma puede clasificarse en hematuria macroscópica (si la orina y visiblemente roja) o en microscópica (si se logran identificar hematíes en el examen microscópico de orina).
Existen diversas causas para la hematuria, una más frecuentes entre las cuales se encuentran tumores, infecciones, litiasis, y otras entidades más raras como el síndrome de cascanueces.
Metrological support for measuring water flow rate in non-pressure large-diameter pipes
Authors: Егоров Н.Л. , Лойцкер О.Д. 
Published: February 2022

Рассматривается возможность поверки рабочих расходомеров в больших трубах круглого сечения с безнапорным потоком воды. В качестве рабочего эталона предлагается использовать переносное устройство, помещаемое в трубопровод через смотровой люк. Излагаются принципы монтажа и крепления устройства. Средствами измерения являются микровертушки, установленные на вращающейся штанге. Экспериментальные результаты выражаются средними скоростями потока на выбранных окружностях. При обработке данных используется квадратурная формула Гаусса. Проведена оценка погрешности определения расхода с помощью модели напорного турбулентного потока в круглой трубе.
Possible verification of operating flow meters in large pipes of circular cross section with free flow of water is considered. Using a portable device placed in the pipeline through an inspection hatch is proposed as a working standard. The principles of installing and fixing the device are stated. Measuring instruments are pigmy meters mounted on a rotating rod. The experimental results are expressed by the average flow velocities on the selected circles. While processing the data, the Gaussian quadrature formula is used. The error in determining the flow rate is estimated using a model of pressure turbulent flow in a round pipe.
Bonding of single-layered Cu2O nanospheres on Cu substrates in irradiating near-infrared femtosecond laser pulses
Authors: Murayama Shohei , Vu Trung Nguyen Kien , Anzai Masateru , Magara Hideyuki , Nakamura Takahiro , Mizoshiri Mizue 
Published: February 2022

AbstractWe investigated the bonding mechanism of single-layered Cu2O nanospheres (NSs) on Cu thin films. When near-infrared femtosecond laser pulses were focused and irradiated on the Cu2O NS films containing the NSs and reducing agents on Cu thin film-coated Si substrates, single-layered NSs were bonded just above the substrates after rinsing the non-bonded NSs. The minimum pulse energy for the single bonding on the Cu thin film-coated Si substrates was smaller than that on Si substrates. The electromagnetic enhancement was calculated between the Cu2O NSs and Cu thin films by simulating the finite element method. The enhancement was estimated using a transverse mode of the linear polarization of the incident femtosecond laser pulses. The experimental and simulation results indicated that the single-layered NSs were bonded on the Cu thin films by femtosecond laser pulse-induced local heating and melting due to the localized plasmon enhancement between the Cu2O NSs and substrates.
Selective electrochemical determination based on magnetic molecularly imprinted polymers for albumin detection
Authors: Leepheng Piyawan , Limthin Dalawan , Onlaor Korakot , Tunhoo Benchapol , Thiwawong Thutiyaporn , Suramitr Songwut , Phromyothin Darinee 
Published: February 2022

Abstract
Egg allergy is one of the most common allergies in humans. Allergenic egg protein as ovalbumin is the most abundant protein found in egg white. A selective electrode in electrochemical analysis for albumin from egg white was developed based on magnetic molecularly imprinted polymers (albumin-MMIPs) modified on a screen-printed electrode. Surface modification was applied using methyl methacrylate polymer to create surface specificity for albumin protein. The modified surface was characterized by a field-emission scanning electron microscope (FE-SEM). The average pore size was obtained by Brunauer–Emmett–Teller (BET) analysis, and the potentiostat obtained all electrochemical analysis. The albumin-MMIP electrode was selectivity with albumin, comparison with gluten, glycine, casein, and glucose. The modified electrodes present selectivity of 1.13 × 104
μAg−1ml and a limit of detection of 0.18 mg ml−1. The electrode can be applied to albumin protein detection in solution form in food industries.
Field cycling behavior and breakdown mechanism of ferroelectric Al0.78Sc0.22N films
Authors: Tsai Sung-Lin , Hoshii Takuya , Wakabayashi Hitoshi , Tsutsui Kazuo , Chung Tien-Kan , Chang Edward Yi , Kakushima Kuniyuki 
Published: February 2022

Abstract
The effects of field cycling of Al0.78Sc0.22N capacitors on ferroelectric properties are investigated. In the first hundreds of switching cycles, the reduction in the switching voltage was observed, possibly due to the formation of nitrogen-vacancy to facilitate the atom displacements. With further switching cycles, fatigue effect was observed, especially for domains with low switching voltage. The leakage current analysis indicates continuous downward band bending with the number of switching cycles, effectively reducing the Schottky barrier height for electrons. The breakdown of Al0.78Sc0.22N films is triggered by the Joule heat due to excessive leakage current. The mechanism is in contrast to conventional ferroelectric materials, where the breakdown is triggered by Joule heat at the local conductive filaments.
Direct-binary-search algorithm for fabrication-tolerant photonic-crystal-like subwavelength structures and its application to a four-mode waveguide crossing in 2 μm waveband
Authors: Muratsubaki Taichi , Fujisawa Takeshi , Sawada Yusuke , Sato Takanori , Saitoh Kunimasa 
Published: February 2022

Abstract
A novel direct-binary-search algorithm for the design of fabrication-tolerant photonic-crystal-like subwavelength structures is proposed. In the proposed method, structures based on holes with different diameters are considered to enhance the device performance under diameter variation. The usefulness of the proposed method is demonstrated through the design of a fabrication-tolerant four-mode waveguide crossing in the 2 μm waveband. With the proposed method, the transmission of TE3 mode is increased by 4.9% (for diameter of 130 nm) and 9.5% (for diameter of 150 nm) on average of 15 samples, compared with the conventional direct-binary-search method. The designed device provides insertion losses of <0.87 dB and crosstalks of <−24 dB in spite of diameter variations of ±10 nm from the ideal diameter.
Effect of dynamic high-pressure loading on decomposition reaction and negative thermal expansion of silver oxide
Authors: Kishimura Hiroaki , Shimono Seiya , Abe Hiroshi 
Published: February 2022

Abstract
The effect of dynamic high-pressure loading on the decomposition reaction and negative thermal expansion of Ag2O was investigated by X-ray diffraction (XRD) analysis and differential scanning calorimetry (DSC). The XRD pattern of the sample shocked at 6.4 GPa indicated that the sample was composed of cubic phase Ag2O and metallic Ag. These XRD patterns indicated that the shock-induced decomposition reaction of Ag2O occurred when the sample was shock-loaded at 6.4 GPa and above. The DSC curves of the shocked Ag2O revealed that an additional exothermic reaction occurred at around 478 K in addition to an endothermic reaction at around 700 K, which corresponds to the decomposition of Ag2O. The exothermic reaction at around 478 K was probably caused by the release of shock-induced residual energy. Synchrotron XRD performed from 300 to 130 K clarified the suppression of negative thermal expansion in the shocked Ag2O.
ANALISIS STRUKTUR KALIMAT IMPERATIF DALAM FILM “THE CAPTAIN”
Authors: Jung Cintiawinata , Julina Julina 
Published: February 2022

Penggunaan kalimat imperatif tentunya sangat banyak ditemukan dalam film. Film sebagai karya seni berupa rangkaian gambar hidup yang diputar sehingga menghasilkan sebuah gambar bergerak yang disajikan sebagai bentuk hiburan. Penelitian ini bertujuan untuk mendeskripsikan struktur kalimat imperatif yang terdapat dalam film “The Captain”. Peneliti menggunakan teori Wang tentang struktur kalimat imperatif. Metode penelitian yang digunakan adalah metode penelitian deskriptif kualitatif. Sumber data dalam penelitian ini adalah film Tiongkok tahun 2019 “The Captain” (中国机长Zhōngguó Jīzhǎng). Data penelitian ini adalah kata dan kalimat imperatif dalam film. Teknik pengumpulan data yang digunakan adalah teknik simak dan catat menurut Mahsun, selanjutnya menggunakan teknik analisis data Miles dan Huberman. Peneliti menemukan 281 kalimat imperatif dalam film “The Captain”. Selanjutnya peneliti menganalisis struktur kalimat imperatif dalam film ini berdasarkan subjek, predikat dan partikel imperatifnya. Penelitian ini diharapkan dapat menjadi referensi bagi penelitian selanjutnya dan menambah wawasan pembaca tentang struktur kalimat imperatif. Kata kunci: Kalimat Imperatif; Film Tiongkok; Film The Captain; Struktur Imperatif
ANALISIS MOTIVASI DAN SIKAP PELAJAR INDONESIA UNTUK BELAJAR BAHASA MANDARIN: STUDI KASUS MAHASISWA D3 SEKOLAH TINGGI BAHASA HARAPAN BERSAMA
Authors: Nurislin Nurislin 
Published: February 2022

Dalam proses belajar bahasa Mandarin, motivasi dan sikap belajar mahasiswa menentukan ke efektifitan pembelajaran bahasa mandarin. Motivasi dan sikap belajar dibagi menjadi eksternal dan internal, keduanya dapat berbaur satu sama lain untuk menstimulasi pembelajaran mahasiswa. Penelitian ini menggunakan observasi kelas dan kuesioner dalam pengumpulan data. Data yang terkumpul dianalisis dengan teknik deskriptif kualitatif. Penelitian ini bertujuan untuk menganalisis Motivasi dan Sikap Pelajar Indonesia untuk Belajar Bahasa Mandarin pada mahasiswa Sekolah Tinggi Bahasa Harapan Bersama D3 Semester satu dan semester 3. Hasil penelitian ini menunjukan 80% responden menyadari manfaat mandarin di masa datang, kendati demikian hasil observasi menunjukan bahwa sikap responden dalam belajar mandarin masih sangat pasif. Hal ini menunjukkan bahwa motivasi dan sikap pelajar berbanding terbalik. Kata kunci: Pembelajaran Bahasa Mandarin, Motivasi Belajar, Sikap Belajar
Persepsi Guru dan Siswa Terhadap Implementasi Pembelajaran Daring Pada Masa Pandemik Covid-19 Di Sekolah Dasar
Authors: Purnama Yulia 
Published: February 2022

Purpose of the study: Tujuan penelitian ini yaitu untuk mencari gambaran pembelajaran daring yang telah dilakukan disekolah berdasarkan persepsi guru dan siswa.
Methodology: Penelitian ini menggunakan teknik analisis deskriptif. Penelitian ini berupaya untuk memberikan suatu gambaran terhadap suatu kondisi yang telah terjadi berdasarkan tanggapan dan pendapat dari narasumber. Sampel dalam penelitian ini berjumalah 25 orang siswa kelas 5 sekolah dasar yang telah melaksanakan pembelajaran daring. Instrumen yang digunakan berupa angket dan wawancara terstruktur.
Main Findings: Berdasarkan persepsi yang telah dikemukan narasumber menunjukan bahwa indikator yang dapat dinilai pada implementasi pembelajaran daring berupa ketersedian sarana dan prasarana serta keefektifan pembelajaran daring. Seluruh narasumber telah memiliki sarana dan prasarana berupa gawai untuk menunjang pembelajaran daring. Namun terdapat kendala berupa jaringan atau koneksi internet. 40% memiliki koneksi yang baik dan 60% memiliki koneksi yang terganggu. Sedangkan mengenai keefektifan belajar menunjukan bahwa 36% atau sebanyak 9 siswa menyatakan menikmati proses pembelajaran daring, 44% atau sebanyak 11 siswa menyatakan kurang menikmati pembelajaran daring dan 20% atau sebanyak 5 orang siswa menyatakan tidak menikmati proses pembelajaran daring.
Applications of this study: penelitian ini dapat dijadikan sebagai acuan dalam menevaluasi pembelajaran yang telah dilakukan.
Novelty/Originality of this study: Keterbaruan dalam penelitian ini berupa pemaparan tentang persepsi narasumber terhadap suatu kondisi yang secara tiba-tiba harus dilakukan, dimana tindakan tersebut berbeda dengan kebiasaan.
Perceptions of obstetricians, midwives, and patients towards the delivery table shield: survey on a novel protective equipment
Authors: YEGİN Gülin Feykan , YALCİN BAHAT Pinar , TANACAN Atakan , İSLEK SECEN Elcin , EROL Seyit Ahmet , KESKİN Hüseyin Levent , ÖZDEMİR İsmail , MORALOĞLU TEKİN Özlem , SAHİN Dilek 
Published: February 2022

Objective: This study aimed to evaluate perceptions of doctors, midwives, and patients regarding our designed delivery table shield (DTS) during second stage of vaginal deliveries of women with suspected or confirmed COVID-19.
Methods: In this cross-sectional double-center study, semi-structured questionnaires were administered to doctors/midwives (n = 224) and patients with suspected or confirmed COVID-19 (n = 154) with experience on use of DTS during second stage. All statistical analyses were performed using the chi-square test to compare the categorical variables and pair-wise comparisons were performed via the chi-square test. A p-value < 0.05 were considered statistically significant.
Results: Of the sample healthcare providers, 180 (80.4%) stated being safe with DTS; 204 (91.1%) stated not encountering any problem using the shield; 171 (76.3 %) thought the DTS does not complicate the intervention in any obstetric urgency. 131 (85%) of patients stated feeling safe and not having any problem; 141 (91.6%) stated that DTS did not affect mother-baby bonding and suggested vaginal delivery with DTS to expectant mothers.
Conclusion: The study supported that using DTS during second stage of vaginal delivery of women with suspected or confirmed COVID-19, is advantageous for obstetricians and midwives without compromising optimal labor conditions.
İntrahepatik gebelik kolestazı olan hastalarda safra asidi düzeyleri ile olumsuz gebelik sonuçları arasındaki ilişki: 120 vakanın retrospektif analizi
Authors: ANUK Ali Taner , KARA Özgür 
Published: February 2022

Amaç: Literatürde birçok çalışmada intrahepatik gebelik kolestazı (İGK) tanılı kadınlarda serum açlık safra asidi (ASA) düzeylerinin 40 umol/L üzerinde iken olumsuz perinatal sonuçları öngörmede daha iyi olduğu gösterilmiştir. Çalışmamızda, İGK tanısı alan hastalarda, serum ASA düzeylerine göre (10-40 ve >40 mmol/L) oluşturulan gruplar arasında hastalık şiddeti ile olumsuz perinatal sonuçlar arasındaki ilişkiyi ölçmeyi amaçladık.
Gereç ve Yöntemler: 1 Eylül 2019 - 31 Aralık 2020 tarihleri arasında hastanemizde yapılan bu retrospektif çalışmaya İGK tanısı alan 120 hasta dahil edildi. Obstetrik sonuçlar, maternal ve fetal komplikasyonlar analiz edildi.
Bulgular: Serum ASA düzeyleri 10-40 umol/L aralığında olan 88 olgu ile 40 umol/L’nin üzerinde olan 32 olgu karşılaştırıldı. Maternal ve fetal komplikasyon oranları, açlık safra asidi düzeyi >40 umol/L olan grupta anlamlı olarak artmış saptandı (p40 umol/L olan grupta 1. dk ve 5.dk Apgar skorları istatistiksel olarak anlamlı oranda düşük saptanmış olup, yenidoğan yoğun bakım (YDYB) ihtiyacı da anlamlı olarak artmış bulundu (p 40 umol/L olan İGK tanılı olgularda preterm doğum, mekonyumlu amniyon, neonatal respiratuar distres sendromu (RDS), YDYB ihtiyacı ve neonatal ölümü içeren gebelik olumsuz sonuçları istatistiksel olarak anlamlı düzeyde yüksek saptandı. Özellikle olumsuz gebelik sonuçlarının belirli ASA değerlerinin üzerinde anlamlı olarak yükselmesi, klinisyenleri İGK ile komplike olan gebeliklerin yönetiminde daha iyi klinik sonuçlar elde etmek açısından yönlendirebilir.