bluuebunny/crossref_metadata_2025_split huggingface dataset:
COVID-19 related misconceptions among older adults in Bangladesh: findings from a cross-sectional study
Authors: Mistry Sabuj Kanti , Ali ARM Mehrab , Yadav Uday Narayan , Irfan Nafis Md. , Rayamajhee Binod , Stanners Melinda N. 
Published: March 2021

Background The COVID-19 has been appeared as the most remarkable global calamity of this century. Just as the COVID-19 spread throughout the world, so as the rumour and misconceptions related to it. The present study aimed to explore the prevalence of COVID-19 related misconceptions and its correlates among the older adults in Bangladesh. Methods The study followed a cross-sectional design and was conducted among 1032 participants aged 60 years and above from Bangladesh. Information was collected on 14 different locally relevant misconceptions related to the spread, prevention, and treatment of COVID-19, scored each misconception as one, and obtained a cumulative score, ranging from 0 to 14, with a higher score indicating a higher level of misconceptions. A multiple linear regression model explored the factors associated with misconceptions. Results The most common misconceptions were, all returning migrants carrying COVID-19 (45.5%), wearing personal protective equipment (PPE) in outdoors (80.1%), not going to the funeral of people died of COVID-19 (45.2%), its prevention by nutritious food (57.6%) and drinking water (39.4%), and doctor can cure COVID-19 (49.9%). Misconceptions were higher among the participants who were living alone, whose family members were not responsive to their needs during COVID-19, and who received COVID-19 related information from Radio/TV and health workers. These misconceptions were less likely among those who were aged 70-79 years, who had pre-existing non-communicable chronic conditions, who were overwhelmed by COVID-19, and who felt themselves at highest risk of COVID-19. Conclusion Overall, we found that misconceptions were prevalent among the older adults in Bangladesh. Government and other relevant stakeholders should take immediate actions to address the prevalent misconceptions through using appropriate channels, media, and message delivery systems, and applying evidence-based risk communication methods.
Monolithic AlGaAs second-harmonic nanoantennas: erratum
Authors: Gili V. F. , Carletti L. , Locatelli A. , Rocco D. , Finazzi M. , Ghirardini L. , Favero I. , Gomez C. , Lemaître A. , Celebrano M. , De Angelis C. , Leo G. 
Published: March 2021

Figure 1(b) in [V. F. Gili et al, Opt. Express 24, 15965 (2016)10.1364/OE.24.015965] is corrupted and is corrected in this erratum.
Gratingless integrated tunneling multiplexer for terahertz waves
Authors: Headland Daniel , Withayachumnankul Withawat , Fujita Masayuki , Nagatsuma Tadao 
Published: March 2021

The arrayed waveguide grating (AWG) is a versatile and scalable passive photonic multiplexer that sees widespread usage. However, the necessity of a waveguide array engenders large device size, and gratings invariably commute finite power into undesired diffraction orders. Here, we demonstrate AWG-like functionality without a grating or waveguide array, yielding benefits to compactness, bandwidth, and efficiency. To this end, we exploit optical tunneling from a dielectric waveguide to an adjacent slab in order to realize a slab-confined frequency-scanning beam, which is manipulated using in-slab beamforming techniques that we have developed in order to separate distinct frequency bands. In this way, we devise an all-intrinsic-silicon integrated

4
×
1

frequency-division terahertz multiplexer, which is shown to support aggregate data rates up to 48 Gbit/s with an on–off-keying modulation scheme, operating in the vicinity of 350 GHz. Our investigation targets the terahertz range, to provide a critical missing building block for future high-volume wireless communications networks.
High-resolution two-photon transcranial imaging of brain using direct wavefront sensing
Authors: Chen Congping , Qin Zhongya , He Sicong , Liu Shaojun , Lau Shun-Fat , Wu Wanjie , Zhu Dan , Ip Nancy Y. , Qu Jianan Y. 
Published: March 2021

Imaging of the brain in its native state at high spatial resolution poses major challenges to visualization techniques. Two-photon microscopy integrated with the thinned-skull or optical clearing skull technique provides a minimally invasive tool for in vivo imaging of the cortex of mice without activating immune response and inducing brain injury. However, the imaging contrast and spatial resolution are severely compromised by the optical heterogeneity of the skull, limiting the imaging depth to the superficial layer. In this work, an optimized configuration of an adaptive optics two-photon microscope system and an improved wavefront sensing algorithm are proposed for accurate correction for the aberrations induced by the skull window and brain tissue. Using this system, we achieved subcellular resolution transcranial imaging of layer 5 pyramidal neurons up to 700 μm below pia in living mice. In addition, we investigated microglia–plaque interaction in living brain of Alzheimer’s disease and demonstrated high-precision laser dendrotomy and single-spine ablation.
Legal challenges of an open web index
Authors: Erenli Kai , Geminn Christian , Pfeiffer Leon 
Published: March 2021

AbstractCalls for a European “third way” in matters of digital technology need to be put into action to achieve an actual change of the status quo. To achieve autonomy in the digital sphere, European alternatives to digital services and products need to be established. However, such efforts must also extend to the level of information technology infrastructure. To that end, decentralized indexing of the internet could significantly help to strengthen Europe’s digital sovereignty. Nevertheless, legal challenges need to be overcome to make that vision a reality.
Predictors of infection, symptoms development, and mortality in people with SARS-CoV-2 living in retirement nursing homes
Authors: De Vito Andrea , Fiore Vito , Princic Elija , Geremia Nicholas , Panu Napodano Catello Mario , Muredda Alberto Augusto , Maida Ivana , Madeddu Giordano , Babudieri Sergio 
Published: March 2021

IntroductionSince the start of the pandemic, millions of people have been infected, with thousands of deaths. Many foci worldwide have been identified in retirement nursing homes, with a high number of deaths. Our study aims were to evaluate the spread of SARS-CoV-2 in the retirement nursing homes, the predictors to develop symptoms, and death.Methods and findingsWe conducted a retrospective study enrolling all people living in retirement nursing homes (PLRNH), where at least one SARS-CoV-2 infected person was present. Medical and clinical data were collected. Variables were compared with Student’s t-test or Pearson chi-square test as appropriate. Uni- and multivariate analyses were conducted to evaluate variables’ influence on infection and symptoms development. Cox proportional-hazards model was used to evaluate 30 days mortality predictors, considering death as the dependent variable. We enrolled 382 subjects. The mean age was 81.15±10.97 years, and males were 140(36.7%). At the multivariate analysis, mental disorders, malignancies, and angiotensin II receptor blockers were predictors of SARS-CoV-2 infection while having a neurological syndrome was associated with a lower risk. Only half of the people with SARS-CoV-2 infection developed symptoms. Chronic obstructive pulmonary disease and neurological syndrome were correlated with an increased risk of developing SARS-CoV-2 related symptoms. Fifty-six (21.2%) people with SARS-CoV-2 infection died; of these, 53 died in the first 30 days after the swab’s positivity. Significant factors associated with 30-days mortality were male gender, hypokinetic disease, and the presence of fever and dyspnea. Patients’ autonomy and early heparin treatment were related to lower mortality risk.ConclusionsWe evidenced factors associated with infection’s risk and death in a setting with high mortality such as retirement nursing homes, that should be carefully considered in the management of PLRNH.
Higher albumin levels on admission predict better prognosis in patients with confirmed COVID-19
Authors: Kheir Matthew , Saleem Farah , Wang Christy , Mann Amardeep , Chua Jimmy 
Published: March 2021

BackgroundResearch surrounding COVID-19 (coronavirus disease 2019) is rapidly increasing, including the study of biomarkers for predicting outcomes. There is little data examining the correlation between serum albumin levels and COVID-19 disease severity. The purpose of this study is to evaluate whether admission albumin levels reliably predict outcomes in COVID-19 patients.MethodsWe retrospectively reviewed 181 patients from two hospitals who had COVID-19 pneumonia confirmed by polymerase chain reaction (PCR) testing and radiologic imaging, who were hospitalized between March and July 2020. We recorded demographics, COVID-19 testing techniques, and day of admission labs. The outcomes recorded included the following: venous thromboembolism (VTE), acute respiratory distress syndrome (ARDS), intensive care unit (ICU) admission, discharge with new or higher home oxygen supplementation, readmission within 90 days, in-hospital mortality, and total adverse events. A multivariate modified Poisson regression analysis was then performed to determine significant predictors for increased adverse events in patients with COVID-19 pneumonia.ResultsA total of 109 patients (60.2%) had hypoalbuminemia (albumin level < 3.3 g/dL). Patients with higher albumin levels on admission had a 72% decreased risk of developing venous thromboembolism (adjusted relative risk [RR]:0.28, 95% confidence interval [CI]:0.14–0.53, p<0.001) for every 1 g/dL increase of albumin. Moreover, higher albumin levels on admission were associated with a lower risk of developing ARDS (adjusted RR:0.73, 95% CI:0.55–0.98, p = 0.033), admission to the ICU (adjusted RR:0.64, 95% CI:0.45–0.93, p = 0.019), and were less likely to be readmitted within 90 days (adjusted RR:0.37, 95% CI:0.17–0.81, p = 0.012). Furthermore, higher albumin levels were associated with fewer total adverse events (adjusted RR:0.65, 95% CI:0.52–0.80, p<0.001).ConclusionsAdmission serum albumin levels appear to be a predictive biomarker for outcomes in COVID-19 patients. We found that higher albumin levels on admission were associated with significantly fewer adverse outcomes, including less VTE events, ARDS development, ICU admissions, and readmissions within 90 days. Screening patients may lead to early identification of patients at risk for developing in-hospital complications and improve optimization and preventative efforts in this cohort.
Soundtracking Germany: Popular Music and National Identity, Melanie Schiller (2018)
Authors: Hall Mirko M. 
Published: March 2021

Review of: Soundtracking Germany: Popular Music and National Identity, Melanie Schiller (2018)
London: Rowman & Littlefield International, 288 pp.,
ISBN 978-1-78660-622-8, h/bk, £85/$125
ISBN 978-1-78661-596-1, p/bk, £29.95/$44.95
Die Welt im Meer
Authors: Schröder Iris , Schürmann Felix , Theis Frederic , Weigel Petra 
Published: March 2021

Abstract
Using the example of four maps, this essay discusses how the cartography of the oceans enabled perceptions of the earth as a whole and as a continuous realm of possibilities during the nineteenth century. Nautical charts, produced for practical navigation and committed to the precision ethics of physical geography, facilitated the participation of ports such as Bremen in overseas trade. Ocean maps, aiming at providing an overview and filling sea areas with scientific, political, or travel-related information, visualized thinking in global contexts and positioned marine and terrestrial spaces in new relations. Finally, maps of island colonies show the problems that accompanied the overseas communication of knowledge and how cartographers, by overwriting uncertainties, also inscribed ignorance into maps. All in all, from the perspective of the cartography of the oceans, a specific globality emerges that can be regarded as a distinctive cartographic reality.
School Managers Perceptions towards Energy Efficiency and Renewable Energy Sources
Authors: Drosos Dimitrios , Kyriakopoulos Grigorios L. , Ntanos Stamatios , Parissi Androniki 
Published: March 2021

Global economic growth is accompanied by increased energy demand, thus conventional fuels such as coal, oil and gas, which are the primary energy sources, are gradually being depleted. At the same time, the combustion of conventional fuel for energy production causes serious adverse effects on the environment and contributes to climate change due to the emitted greenhouse gases. For the above reasons, most of the developed and developing countries especially during the last decades, have introduced various incentives for the greater penetration of renewable energy sources (RES) in all sectors of the economy. Concerning the building sector, several measures have been adopted, including the promotion of energy efficiency and energy saving. A significant proportion of the building stock are the school buildings where students and teachers spend a significant proportion of their daily time. Teachers' attitudes and views, especially the school unit managers concerning the use of RES in schools, are important in the effort to rationalize and control energy use. This study was conducted through a structured questionnaire applied to a sample of 510 school managers in Greece's primary and secondary education. The school unit managerial role for the case of Greek schools is performed by the school principal who has both administrative and educational duties. Statistical analysis included the application of Friedman's test and hypothesis test on questions concerning school manager environmental perceptions and energy-saving habits. According to the results, Greek school managers have a high degree of environmental sensitivity, since 97.6 % agreed or strongly agreed that the main concern should focus on energy saving. Furthermore, 71% of the respondent reported to have good knowledge on solar energy, followed by 64% on wind energy while only 34% are knowledgeable on biomass. Almost all the respondents (99%) agreed that it is important to provide more RES-orientated education through the taught curricula. Concerning energy saving behaviour, around 90% reported that they switch off the lights when leaving the classroom and they close the windows when the air-condition is operating. Hypothesis tests revealed a relationship between the school managers' ecological beliefs, the energy saving habits in the school environment, and the recognition of the importance of environmental education. Conclusions highlighted the need to intensify environmental education programs in the school environment concerning RES in schools. This will lead to a higher level of environmental awareness of both teachers and students and therefore to a more dynamic behaviour towards the effort to “greenify” the school environment.
Fast discrimination of avocado oil for different extracted methods using headspace-gas chromatography-ion mobility spectroscopy with PCA based on volatile organic compounds
Authors: Liu Yi-Jun , Gong Xiao , Jing Wei , Lin Li-Jing , Zhou Wei , He Jin-Na , Li Ji-Hua 
Published: March 2021

Abstract
To establish a method for fast discrimination of avocado oil for different extracted methods, the headspace-gas chromatography-ion mobility spectroscopy (HS-GC-IMS) combined with principal component analysis (PCA) was used to analyze non-target volatile organic compounds (VOCs). The results showed that 40 VOCs were identified, and the VOCs of the extraction method had a significant difference and had been well distinguished in PCA. The species and content of avocado oil obtained by squeeze method were more than the aqueous methods and supercritical carbon dioxide extraction methods (SC CO2). In addition, the different avocado oil had their characteristic compounds: the 2-acetylthiazole and ethyl propionate were the unique compounds in the avocado oil obtained by SC CO2. A rapid method for the determination of avocado oil obtained by different extraction methods based on HS-GC-IMS had been established, and the method was fast and simple and had a good application prospect in the prediction of avocado oil processing methods.
Gamification in nursing literature: an integrative review
Authors: Sarker Upinder , Kanuka Heather , Norris Colleen , Raymond Christy , Yonge Olive , Davidson Sandra 
Published: March 2021

Abstract

Objective
Gamification is an increasingly popular instructional strategy in nursing. The purpose of this integrative review is to explore gamification as it has been applied in nursing literature. This integrative review seeks to ask the question – What aspects of gamification have been explored in nursing literature and what aspects require further exploration?

Method
Whittemore, R., & Knafl, K. (2005). The integrative review: Updated methodology. Methodological Issues in Nursing Research, 52(5), 546–553 integrative review framework guided this review. Seventeen articles were reviewed and a quality appraisal tool (developed by Hawker, S., Payne, S., Kerr, C., Hardey, M., & Powell, J. (2002). Appraising the evidence: Reviewing disparate data systematically. Qualitative Health Research, 12(9), 1284–1299) was also used to evaluate the articles.

Results
Following the data analysis stage outlined in Whittemore and Knafl’s integrative review framework, six themes emerged: construct conceptualization; relationship between engagement, satisfaction, and knowledge retention; knowledge translation, motivation, role of technology, and gamification elements.

Conclusion
Gamification is of interest to the nursing profession. More study is needed to better ascertain the relationship between gamification and several of the main themes identified in this review.
Numerical analysis of geometrical nonlinear aeroelasticity with CFD/CSD method
Authors: Nie Xueyuan 
Published: March 2021

Abstract
A nonlinear static aeroelastic methodology based on the coupled CFD/CSD approach has been developed to study the geometrical nonlinear aeroelastic behaviors of high-aspect-ratio or multi-material flexible aerial vehicles under aerodynamic loads. The Reynolds-averaged Navier–Stokes solver combined with the three-dimensional finite-element nonlinear solver is used to perform the fluid-structure coupling simulation. The interpolation technique for data transfer between the aerodynamic and structural modules employs radial basis function algorithm as well as dynamic mesh deformation. A high-aspect-ratio structure with multi-material is modeled by the finite element method to investigate the effects of geometrical nonlinearity on the aeroelastic behavior. Numerical simulations of the linear and nonlinear static aeroelasticity were conducted at transonic regime with different angles of attack. By comparing the aeroelastic behaviors of linear and nonlinear structure, it shows that geometrical nonlinearity plays an important role for flexible high-aspect-ratio wings undergoing the large static aeroelastic deformation and should be taken into account in aeroelastic analysis for such structures.
Application of moving least squares algorithm for solving systems of Volterra integral equations
Authors: Matinfar Mashallah , Taghizadeh Elham , Pourabd Masoumeh 
Published: March 2021

Abstract
The numerical method developed in the current paper is based on the moving least squares (MLS) method. To this end, the MLS approximation method has been used, and a program has been made which can solve the system of Volterra integral equations (VIEs) with any number of equations and unknown functions. And then the proposed method is implemented on the system of linear VIEs with variable coefficients. The numerical examples are given that show the acceptable accuracy and efficiency of the proposed scheme.
COVID-19 and Financial Markets: A Panel Analysis for European Countries
Authors: Klose Jens , Tillmann Peter 
Published: March 2021

Abstract
In order to fight the economic consequences of the COVID-19 pandemic, monetary and fiscal policymakers announced a large variety of support packages which are often unprecedented in size. In this paper, we provide an empirical analysis of the responses of European financial markets to these policy announcements in the spring of 2020. We assemble a granular set of more than 400 policy announcements, both at the national and the European level. We also differentiate between the first announcement in a series of policies and the subsequent announcements because the initial steps were often seen as bad news about the state of the economy. In a panel model, we find that monetary policy, in particular, through asset purchases, is effective in easing the pressure on governmental finances. Stock prices are particularly sensitive to the suspension of the Stability and Growth Pact. Fiscal policy becomes more effective when monetary announcements fall on the same day. We also find sizable cross-border effects of policy announcements.
On the causative and passive morphology in Japanese and Korean
Authors: Aoyagi Hiroshi 
Published: March 2021

AbstractDrawing on the layered verb phrase hypothesis, the unexpected adversity imposed on the subject of causative–passives in Japanese will be explained by the loci of-saseand-rare, both of which may instantiate more than one functional heads. This hypothesis also gives an account of the marginal status of passive–causatives whose passivized subject (=causee) is animate. Turning to Korean, /Hi/ is univocally causative, and its apparent use as passive is the result of Voice–Cause bundling. Furthermore, the possible and impossible uses of /Hi/ and /Hu/ as passive morphology result from their selectional properties.
Role of the gut microbiome in Alzheimer’s disease
Authors: Chok Kian Chung , Ng Khuen Yen , Koh Rhun Yian , Chye Soi Moi 
Published: March 2021

Abstract
Alzheimer’s disease (AD) is the most common form of dementia, affecting millions of individuals each year and this number is expected to significantly increase. The complicated microorganisms residing in human gut are closely associated with our health. Emerging evidence has suggested possible involvement of human gut microbiome in AD. Symbiotic gut microbiomes are known to maintain brain health by modulating host’s barriers integrity, metabolic system, immune system, nervous system and endocrine system. However, in the event of gut dysbiosis and barriers disruption, gut pathobionts disrupt homeostasis of the metabolic system, immune system, nervous system, and endocrine system, resulting in deterioration of neurological functions and subsequently promoting development of AD. Multiple therapeutic approaches, such as fecal microbiome transplant, antibiotics, prebiotics, probiotics, symbiotic, and diet are discussed as potential treatment options for AD by manipulating the gut microbiome to reverse pathological alteration in the systems above.