bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research Methods of Coasting Standing Waves in a Solid Wave Gyroscope
Authors: Mingazov R. I. , Spiridonov F. I. , Shishakov K. V. 
Published: November 2020

Системно описаны методики исследования свободного выбега стоячих волн в резонаторах интегрирующих твердотельных гироскопов по сигналам их измерительных устройств. Для этого подробно рассмотрены процессы формирования рабочей и квадратурной стоячих волн через резонансные моды колебаний, а также раскрыта внутренняя структура измеряемых сигналов. Показаны связи стоячих волн с измерительными сигналами, что принято в качестве математической основы для идентификации медленно изменяемых характеристик волновых процессов в резонаторе.Проанализированы четыре варианта алгоритмов измерения временного поведения медленных характеристик рабочей и квадратурной стоячих волн, в которых задача идентификации сводится к аналитическим формулам и однопараметрической оптимизации для уточнения частоты. В первом алгоритме производится обработка результатов измерений без учета квадратурной волны. Он предлагается для формирования начального приближения в задаче уточняющей многопараметрической оптимизации функционала идентификации. Во втором алгоритме обработка результатов измерений выполняется с использованием информации о фазовом сдвиге сигналов измерительного устройства. Он позволяет одновременно контролировать моменты времени прохождения стоячими волнами осей измерительного устройства по критерию увеличения фазового сдвига на p/2. Это может оказаться важным при синтезе контуров активного подавления квадратурной волны через обратную связь по сигналу фазового рассогласования измерительных сигналов. В третьем алгоритме для обработки результатов измерений предложен переход к подвижным осям стоячих волн. Его преимуществом является большая физическая наглядность результатов, а также удобство дополнительного косвенного контроля сохранности масштабирования измерительных сигналов. В четвертом алгоритме идентификации обработка результатов измерений производится с использованием численных процедур цифровой демодуляции.Дополнительно проанализирована методика исследования свободного выбега стоячих волн с использованием стандартных процедур одновременной многопараметрической численной минимизации функционала ошибки идентификации сразу по всем пяти медленно изменяемым во времени функциям стоячих волн. Выполненные натурные исследования подтвердили ее эффективность.
Maclean’s Magazine University Rankings (1998-2018)
Authors: Cramer Kenneth , DeBlock Denise 
Published: November 2020

Following 20 years of publishing rank and reputation scores for Canada’s 49 institutions of higher education, the present analysis tested five hypotheses: (1) rank and reputation should be positively correlated across schools for each year; (2) rank and reputation should be positively correlated across the 20 years for each school; (3) a school’s rank variance should be equivalent to a school’s reputation variance; (4) previous reputation would predict current rank; and (5) previous rank would predict current reputation. Results showed that whereas rank corresponded roughly to reputation for a given school, there are noteworthy exceptions. One in seven schools offered a reliable correlation between rank and reputation, and four school correlations were negative. Rank and reputation variability correlated, though (marginally) better-ranked schools had stable reputation scores over the years. Implications for future ranking exercises are discussed, as are directions for future research.

Voilà maintenant 20 ans que l’on publie le classement et la réputation des 49 établissements d’enseignement supérieur canadiens. Dans cet article, nous examinons cinq hypothèses : 1) le classement et la réputation devraient faire l’objet d’une corrélation positive parmi les établissements d’année en année; 2) le classement et la réputation devraient faire l’objet d’une corrélation positive sur toute la période de 20 ans pour chaque établissement; 3) les variations dans le classement d’un établissement devraient se refléter dans les variations de la réputation; 4) l’indice de réputation antérieur permettrait de prévoir le classement actuel d’un établissement; et 5) le classement antérieur permettrait de prévoir l’indice de réputation actuel d’un établissement. Selon les résultats de notre analyse, bien que le classement et la réputation puissent être équivalents dans le cas d’un établissement en particulier, il existe des exceptions notoires. Dans le cas d’un établissement sur sept, il y a une corrélation sûre entre le classement et la réputation. Dans le cas de quatre établissements, la corrélation s’est montrée négative. Il y a une corrélation entre les variations du classement et de la réputation, quoique les établissements un peu mieux classés ont des indices de réputation plus stables au fil du temps. Nous présentons enfin les conséquences de ces résultats pour la conception de futurs palmarès et nous proposons des avenues pour la recherche.
Online Instructor Development: A COOL story
Authors: Baker Nick , John Freer , Nobuko Fujita , Alicia Higgison , Mark Lubrick , Brandon Sabourin , Jane Sylvester , Paula Van Wyk 
Published: November 2020

This paper explores the development of a flexible, free, online certificate program built on open educational resources to support instructors transitioning to online and non-traditional teaching modes. The program offers multiple pathways to completion, including recognition of prior learning and immersing participants in the online learning environment. We describe the challenges learners had to overcome to engage in the program and how, in doing so, they were able to embrace constructivist and connectivist approaches. These, in turn, afforded them ongoing connections, broke the mold of preconceptions and myths when preparing to engage future online learners, and shaped their practice through exposure to learning theories and evidence-based practices. In this paper, we explore the initial design of the program through the lens of the program facilitators and learners from the first cohort, and share our collective learning and reflections from this process.

Nous nous penchons ici sur l’élaboration d’un programme de certificat gratuit, souple et basé sur des ressources éducationnelles ouvertes. Offert en ligne, ce programme est conçu pour aider les professeurs à faire la transition vers l’enseignement en ligne et vers des méthodes d’enseignement non traditionnelles. Il existe de nombreuses manières de satisfaire aux exigences du programme, y compris la reconnaissance de l’apprentissage et de l’immersion dans un environnement d’apprentissage en ligne. Dans notre article, nous faisons état des difficultés auxquelles les apprenants ont été confrontés lors de leur participation au programme. Nous montrons comment, en surmontant ces obstacles, ils se sont approprié des approches constructivistes et connectées, lesquelles leur ont permis d’établir des connexions et de déconstruire certains mythes et préjugés au bénéfice des futurs apprenants en ligne, tout en les aidant à façonner leur pratique au moyen de théories de l’apprentissage et de pratiques fondées sur des données probantes. Notre étude examine la conception initiale du programme à partir du point de vue des animateurs et des apprenants de la première cohorte. Nous présentons également les réflexions et les leçons que nous avons tirées, collectivement, de cette expérience.
PELAKSANAAN PEBINAAN KREATIVITAS SISWA DALAM KEGIATAN EKSTRAKURIKULER KURSUS KADER DAKWAH (KKD) DI MAN 2 MODEL MEDAN
Authors: Haidir Haidir , Ananda Rizki , Tambunan Qurrota A’yuna , Anju Nasution Yusri Purnama 
Published: November 2020

Penelitian ini bertujuan untuk mengetahui (1) Program-program pelaksanaan pembinaan kreativitas dalam kegitan ekstrakurikuler Kursus Kader Dakwah (KKD) di MAN 2 Model Medan dan (2) Mengetahui peluang dan hambatan dalam kegiatan ekstrakurikuler KKD d iMAN 2 Model Medan. Penelitian ini merupakan penelitian deskriptifkualitatif. Subjek penelitian ini adalah kepala Madrasah, guru pembimbing dan siswa. Adapun hasil penelitian bahwa: (1) Program-program ekstrakurikuler KKD dalam bidang keagamaan dan Dakwah melatih retorika dakwah secara Islami, serta mengkaji Alquran, Mentoring (Halaqoh), Tahsin Alquran, Pelatihan Pidato, Pelatihan Jurnalistik, Syarhil dan Fahmil Alquran, Silaturrahmi, Gebyar Kreativitas Muharram, Safari Ramadhan, dan Rihlah. (2) Peluang yang besar terbukti dengan adanya antusias yang besar dari siswa yang mengikutinya dan dukungan yang kuat dari pihak madrasah, sehingga mereka dapat mengembangkan bakat yang mereka miliki terutama bakat retorika dakwah serta kegiatan KKD dapat terlaksana dengan baik dan hambatan yang tidak terlalu berarti.Kata Kunci : Ektrakurikuler Kursus Kader Dakwah, Pembinaan Kreativitas
Switching across direct oral anticoagulants: a real-life-setting pilot prospective study
Authors: Marchetti Gabriello , Bernardini Francesco , Romoli Michele , Urbinati Stefano 
Published: November 2020

Aims
Crossover between direct oral anticoagulants (DOACs) has been underinvestigated, but happens frequently in clinical practice. The purpose of this study was to evaluate causes, rates and outcomes of a DOAC-to-DOAC switch.

Methods
Patients receiving their first DOAC prescription at the Anticoagulation Center, Cardiology Dept, Bologna-Bellaria Hospital in 2017–2018 were consecutively included and prospectively followed up. DOAC-to-DOAC switch was the main outcome; causes of switch (cardiovascular events and noncardiovascular drug-related adverse events) had direct biannual assessment before and after the switch.

Results
Among 300 patients enrolled (mean age = 79.3 years, mean follow-up = 1.5 years), with no difference in cardiovascular risk factors depending on index DOAC, 13% underwent DOAC-to-DOAC switch, minor bleeding and noncardiovascular adverse events being the most frequent causes. Dabigatran carried a three-fold increase in risk of switch compared with other DOACs, but the mean age of patients who switched was 83. Factors leading to switch resolved in 87% of cases afterwards. Annual rates of cardiovascular/noncardiovascular V events did not differ before and after the switch.

Conclusion
DOAC-to-DOAC switch happens in 9% of patients using DOAC each year, and seems not to impact rates of cardiovascular events after switch. Dabigatran, in the elderly, might be associated with a higher risk of DOAC-to-DOAC switch. Further studies are needed to confirm the long-term safety and effectiveness of switching paradigm.
Sutureless aortic valves in elderly patients with aortic stenosis and intermediate-risk profile
Authors: Di Bacco Lorenzo , Rosati Fabrizio , Folliguet Thierry , Petruccelli Rocco D. , Concistrè Giovanni , Santarpino Giuseppe , Di Bartolomeo Roberto , Bisleri Gianluigi , Fischlein Theodor J. , Muneretto Claudio 
Published: November 2020

Aims
Sutureless valves became an alternative to standard bioprostheses, allowing surgeons to significantly reduce cross-clamping and extracorporeal circulation times, with a potential positive impact on major postoperative complications. The aim of this European multicentre study was to evaluate the safety and efficacy of sutureless valves in patients with an intermediate-risk profile undergoing aortic valve replacement (AVR).

Methods
We investigated early and mid-term outcomes of 518 elderly patients with aortic stenosis at intermediate-risk profile (mean STS Score 6.1 ± 2%) undergoing AVR with sutureless aortic valve. Primary endpoints were 30-day mortality and freedom from all-cause death at follow-up. The secondary endpoint was survival freedom from MACCEs [all-cause death, stroke/transitory ischemic attack (TIA), bleeding, myocardial infarction, aortic regurgitation Grade II, endocarditis, reintervention and pacemaker implant; VARC 1--2 criteria].

Results
Sutureless valve implantation was successfully performed in 508 patients, with a procedural success rate of 98.1% (508/518) as per VARC criteria. Concomitant myocardial revascularization [coronary artery bypass grafting (CABG)] was performed in 74 out of 518 patients (14.3%). In-hospital mortality was 1.9% (10/518). Postoperative complications included revision for bleeding (23/518; 4.4%), prolonged intubation more than 48h (4/518; 0.7%), acute renal failure (14/518; 2.7%), stroke/TIA (11/518; 2.1%), pacemaker implantation (26/518; 5.1%) and aortic regurgitation more than Grade II (7/518; 1.4%). At 48-month follow-up, Kaplan–Meier overall survival and freedom from MACCEs in patients receiving isolated AVR were 83.7% [95% confidence interval (95% CI): 81.1–86.3] and 78.4% (95% CI: 75.5–81.4), respectively, while in patients with concomitant CABG, Kaplan–Meier overall survival and freedom from MACCEs were 82.3% (95% CI: 73.3–91.3) and 79.1% (95% CI: 69.9–88.3), respectively.

Conclusion
The use of sutureless aortic valves in elderly patients with an intermediate-risk profile provided excellent early and mid-term outcomes, providing a reliable tool in patients undergoing surgical AVR in this specific subset of population. These preliminary data need to be investigated with a TAVI control-group in further studies.
Characteristics and hospital course of patients admitted for acute cardiovascular diseases during the coronavirus disease-19 outbreak
Authors: Zorzi Alessandro , Vio Riccardo , Rivezzi Francesco , Falzone Pasquale V. , Giordani Andrea S. , Condello Chiara , Dellino Carlo M. , Deola Petra , Gallucci Marco , Giannattasio Alessia , Licchelli Luca , Lupasco Diana , Montonati Carolina , Ravagnin Alberto , Sinigiani Giulio , Torreggiani Gianpaolo , Vianello Riccardo , Migliore Federico , Famoso Giulia , Babuin Luciano , Cacciavillani Luisa , Iliceto Sabino 
Published: November 2020

Introduction
During the coronavirus disease-19 (COVID-19) outbreak in spring 2020, people may have been reluctant to seek medical care fearing infection. We aimed to assess the number, characteristics and in-hospital course of patients admitted for acute cardiovascular diseases during the COVID-19 outbreak.

Methods
We enrolled all consecutive patients admitted urgently for acute myocardial infarction, heart failure or arrhythmias from 1 March to 31 May 2020 (outbreak period) and 2019 (control period). We evaluated the time from symptoms onset to presentation, clinical conditions at admission, length of hospitalization, in-hospital medical procedures and outcome. The combined primary end point included in-hospital death for cardiovascular causes, urgent heart transplant or discharge with a ventricular assist device.

Results
A similar number of admissions were observed in 2020 (N = 210) compared with 2019 (N = 207). Baseline characteristics of patients were also similar. In 2020, a significantly higher number of patients presented more than 6 h after symptoms onset (57 versus 38%, P < 0.001) and with signs of heart failure (33 versus 20%, P = 0.018), required urgent surgery (13 versus 5%, P = 0.004) and ventilatory support (26 versus 13%, P < 0.001). Hospitalization duration was longer in 2020 (median 10 versus 8 days, P = 0.03). The primary end point was met by 19 (9.0%) patients in 2020 versus 10 (4.8%) in 2019 (P = 0.09).

Conclusion
Despite the similar number and types of unplanned admissions for acute cardiac conditions during the 2020 COVID-19 outbreak compared with the same period in 2019, we observed a higher number of patients presenting late after symptoms onset as well as longer and more complicated clinical courses.
Reduction in acute coronary syndromes during coronavirus disease 2019 global pandemic: data from the Marche region of Italy
Authors: Flori Marco , Marinucci Lucia , Gabrielli Gabriele , Baiocco Erika , Accardi Roberto , Scalone Giancarla , Grossi Pierfrancesco , Guerra Federico 
Published: November 2020

Aims
During the novel severe acute respiratory syndrome coronavirus 2 (coronavirus disease 2019) pandemic, a worldwide reduction in total acute coronary syndrome (ACS) has been reported. In early 2020, Italy became the most affected country and national lockdown was declared early on in March. We described trends in ACS from all the Marche coronary catheterization laboratories (CCL) during the global pandemic.

Methods
Retrospective study of all consecutive patients admitted to the four regional CCL. The coronavirus disease 2019 period (20 February 2020 to 15 April 2020) was compared with the interyear control period (1 January 2020 to 19 February 2020) and to the intrayear control period (20 February 2019 to 15 April 2019). All patients with an initial diagnosis of ACS were included in the analysis, and further stratified into ST-segment elevation myocardial infarction (STEMI) and non-STEMI (NSTEMI)/unstable angina.

Results
A total of 1239 patients were enrolled. Daily incidence of ACS was 6.1, 6.3 and 4.5 for the interyear control period, the intrayear control period and the case period, respectively. There was no difference in overall STEMI daily incidence while NSTEMI/unstable angina fell from 3.6 and 3.3–1.8 during the case period (P = 0.01). Incidence rate ratios were significantly lower when the case period was compared with the intrayear control period (incidence rate ratios: 0.49, 95% confidence interval 0.41–0.59, P = 0.001) and the interyear control period (incidence rate ratios: 0.67, 95% confidence interval 0.50–0.90, P = 0.008).

Conclusion
During the global pandemic there was a significant reduction in total ACS and NSTEMI in the Marche region. Unlike previous reports, there was no difference in overall access to CCL for STEMI during the same period.
Imaging predictors of incident heart failure: a systematic review and meta-analysis
Authors: Georgiopoulos Georgios , Aimo Alberto , Barison Andrea , Magkas Nikolaos , Emdin Michele , Masci Pier-Giorgio 
Published: November 2020

Background
Preventing the evolution of subclinical cardiac disease into overt heart failure is of paramount importance. Imaging techniques, particularly transthoracic echocardiography (TTE), are well suited to identify abnormalities in cardiac structure and function that precede the development of heart failure.

Methods
This meta-analysis provides a comprehensive evaluation of 32 studies from 11 individual cohorts, which assessed cardiac indices from TTE (63%), cardiovascular magnetic resonance (CMR; 34%) or cardiac computed tomography (CCT; 16%). Eligible studies focused on measures of left ventricular geometry and function and were highly heterogeneous.

Results
Among the variables that could be assessed through a meta-analytic approach, left ventricular systolic dysfunction, defined as left ventricular ejection fraction (LVEF) lower than 50%, and left ventricular dilation were associated with a five-fold [hazard ratio (HR) 4.76, 95% confidence interval (95% CI) 1.85–12.26] and three-fold (HR 3.14, 95% CI 1.37 –7.19) increased risk of heart failure development, respectively. Any degree of diastolic dysfunction conveyed an independent, albeit weaker, association with heart failure (HR 1.48, 95% CI 1.11–1.96), although there was only a trend for left ventricular hypertrophy in predicting incident heart failure (hazard ratio 2.85, 95% CI 0.82–9.85).

Conclusion
LVEF less than 50%, left ventricular dilation and diastolic dysfunction are independent predictors of incident heart failure among asymptomatic individuals, while left ventricular hypertrophy seems less predictive. These findings may serve as a framework for implementing imaging-based screening strategies in patients at risk of heart failure and inform future studies testing preventive or therapeutic approaches aiming at thwarting or halting the progression from asymptomatic (preclinical) to overt heart failure.
An Overview of Strategic Non-Biological Approaches for The Synthesis of Cupper Nanoparticles
Authors: Munir S. , Gul A. 
Published: November 2020

Abstract
Metal Nanoparticles show specific physical and chemical properties attributed to its small size and high surface area to volume ratio. These chemical and physical properties using different strategies and conditions enhance its biological application especially in the field of medicine. Earth abundant and cheap cupper metal is the essential element in many processes and has been used as a focus element to synthesize nanoparticles by different methods using new technology, which are being broadly classified as biological methods that includes green synthesis, microorganism etc. and the non-biological synthesis which includes chemical and Physical methods. Thus, the imperative need to synthesize cupper nanomaterial that are economic and efficient is necessary. This review have briefly described the modern methods to synthesize nanoparticles particularly focusing on the non-biological methods of cupper nanoparticles. An overview of current methodologies that are used for cupper nanoparticle mainly chemical reduction using organic and inorganic solvents, Reverse micelle, microemulsion, polyol method and several physical methods such as vapor condensation, photo irradiation and plasma synthesis methods are discussed.
Identifying the Critical Factors of Sustainable Manufacturing Using the Fuzzy DEMATEL Method
Authors: Jiang Luwei , Zhang Tenghao , Feng Yanfei 
Published: November 2020

Abstract
The burgeoning trend of globalization gives rise to the formation of the manufacturing ecosystem. This study aims to identify the critical factors of sustainable manufacturing for countries and regions across the globe finding their unique ecological niches. From the perspective of the ecological niche, we develop an evaluation system of the manufacturing niche. By using the fuzzy Decision-Making Trial and Evaluation Laboratory (DEMATEL) method, the critical factors, and its causal relationships of the manufacturing niche can be quantified and visualized. The results indicate that: (1) the evaluation system of the manufacturing niche is characterized by complexity and interactivity; (2) technical factors have the strongest impact on the evaluation system, among which R&D investment intensity and the input-output ratio of new products are key indicators; and (3) technical and policy factors are decisive for the system and actively influence economic and ecological factors. Theoretically, it is beneficial to augment the niche theory and industrial economics. Practically, it helps to create a win-win situation to facilitate governments to enact suitable industrial strategies and assist the manufacturing toward a more sustainable trajectory.
Monotonicity and non-monotonicity regions of topological entropy for Lorenz-like families with infinite derivatives
Authors: Malkin M.I. , Safonov K.A. 
Published: November 2020

Abstract
We study behavior of the topological entropy as the function of parameters for two-parameter family of symmetric Lorenz maps T

c,ɛ
(x) = (−1 + c|x|
1−ɛ
) · sgn(x). This is the normal form for splitting the homoclinic loop in systems which have a saddle equilibrium with one-dimensional unstable manifold and zero saddle value. Due to L.P. Shilnikov results, such a bifurcation corresponds to the birth of Lorenz attractor (when the saddle value becomes positive). We indicate those regions in the bifurcation plane where the topological entropy depends monotonically on the parameter c, as well as those for which the monotonicity does not take place. Also, we indicate the corresponding bifurcations for the Lorenz attractors.