bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bending moment distribution estimation of an actual steel building structure by microstrain measurement under small earthquakes
Authors: Iyama J. , Chih-Chun O. , Araki K. 
Published: April 2021

AbstractMost structural health monitoring systems estimate the overall behavior by measuring the acceleration response, which cannot directly measure the stress or damage state of individual structural members. An alternative approach is to use strain measurements; however, methods for analyzing and utilizing strain data for actual steel buildings have not been established. In this study, highly precise semiconductor strain gauges were applied to an actual building. The accelerations and strains measured during earthquake loading were used to calculate the ratio of the bending moment at the beam or column sections to the displacement at the top of the building, which was defined as the “local stiffness.” This physical index represents the stiffness of structural elements near the measurement location and can be easily predicted through simple static frame analysis. The measured local stiffness was comparable to the analytical local stiffness values for the beams but was larger than that for the columns. This indicates that nonstructural members may exhibit a certain degree of restoring force and that the measured local stiffness may be strongly affected by nonstructural elements that are not considered during the structural design stage. Conversely, the measured local stiffness can be used to estimate the behavior of nonstructural components. The measured dominant frequency and local stiffness of the beams and columns showed a dependency on amplitude, but opposite trends were observed for the beams and columns. This indicates that the amplitude dependency of the dominant frequency is not due to the behavior of the beams and columns but to other reasons such as nonstructural components or changes in mass.
Diterpenoid Alkaloids from the Aerial Parts of Aconitum flavum Hand.-Mazz
Authors: Zhang Na , Xia Fan , Li Song-Yu , Nian Yin , Wei Li-Xin , Xu Gang 
Published: April 2021

AbstractSixteen diterpenoid alkaloids (DAs), including six aconitine-type alkaloids (5 and 9 − 13), seven 7,17-seco-aconitine-type alkaloids (1 − 4, 6 − 8), two napelline-type alkaloids (14 and 15) as well as one veatchine-type alkaloid (16), were isolated from the aerial parts of Aconitum flavum Hand.-Mazz. In which, flavumolines A − D (1 − 4) were four new ones, and flavumoline E (5) was reported as natural compound for the first time. Their chemical structures were elucidated by the analysis of extensive spectroscopic data. The inhibitory activities of these isolates on Cav3.1 low voltage-gated Ca2+ channel, NO production in LPS-activated RAW264.7cells, five human tumor cell lines, as well as acetylcholinesterase (AChE) were tested.
Crystal and electronic structure engineering of tin monoxide by external pressure
Authors: Li Kun , Wang Junjie , Blatov Vladislav A. , Gong Yutong , Umezawa Naoto , Tada Tomofumi , Hosono Hideo , Oganov Artem R. 
Published: April 2021

AbstractAlthough tin monoxide (SnO) is an interesting compound due to its p-type conductivity, a widespread application of SnO has been limited by its narrow band gap of 0.7 eV. In this work, we theoretically investigate the structural and electronic properties of several SnO phases under high pressures through employing van der Waals (vdW) functionals. Our calculations reveal that a metastable SnO (β-SnO), which possesses space group P21/c and a wide band gap of 1.9 eV, is more stable than α-SnO at pressures higher than 80 GPa. Moreover, a stable (space group P2/c) and a metastable (space group Pnma) phases of SnO appear at pressures higher than 120 GPa. Energy and topological analyses show that P2/c-SnO has a high possibility to directly transform to β-SnO at around 120 GPa. Our work also reveals that β-SnO is a necessary intermediate state between high-pressure phase Pnma-SnO and low-pressure phase α-SnO for the phase transition path Pnma-SnO →β-SnO → α-SnO. Two phase transition analyses indicate that there is a high possibility to synthesize β-SnO under high-pressure conditions and have it remain stable under normal pressure. Finally, our study reveals that the conductive property of β-SnO can be engineered in a low-pressure range (0–9 GPa) through a semiconductor-to-metal transition, while maintaining transparency in the visible light range.
Composition of phenolic compounds in wastewater from the fixed-bed gasification of Baishihu coal
Authors: Zhao Yuan 
Published: April 2021

AbstractCrude phenols extracted using organic solvent from the wastewater of a typical fixed-bed gasification process was used as a raw material, and the distillation range was analyzed. The wide and narrow fractions of the raw material derived from distillation range analysis were cut using a real boiling point distillation device. The phenolic compounds in the different fractions were then qualitatively and quantitatively analyzed by gas chromatography after derivatization pretreatment. The yield of the < 290 °C fraction was 68.50% (mass fraction). A total of 33 effective phenolic compounds were identified in this fraction, and the percentage of identified phenols was nearly 80%. The contents of eight phenolic compounds were high, with phenol being the most abundant (26.34%) followed by catechol (13.44%). The contents of the remaining six abundant phenols ranged from 4% to 8%. The sum of the contents of m-cresol and p-cresol exceeded 12%, and the content of 5-indenol was nearly 8%. The yield of the fraction rich in low-grade phenols (< 230 °C) was 35.40%. The content of phenol in this fraction was more than 40%, the total content of cresol was over 23%, and the total content of m-cresol and p-cresol was nearly 20%. At room temperature, the 235–245 °C and 245–260 °C fractions were white crystals in which the catechol content was approximately 50%, and the 5-indenol content was more than 10%. The contents of these two high-value-added phenolic compounds are low in typical coal tar, making them difficult to extract. However, due to their strong polarity and good water solubility, catechol and 5-indenol are enriched in gasification wastewater by water selection, allowing their further extraction.
Let’s Talk About Emotions: the Development of Children’s Emotion Vocabulary from 4 to 11 Years of Age
Authors: Grosse Gerlind , Streubel Berit , Gunzenhauser Catherine , Saalbach Henrik 
Published: April 2021

AbstractLearning to use language in an adult-like way is a long-lasting process. This may particularly apply to complex conceptual domains such as emotions. The present study examined children’s and adults’ patterns of emotion word usage regarding their convergence and underlying semantic dimensions, and the factors influencing the ease of emotion word learning. We assessed the production of emotion words by 4- to 11-year-old children (N = 123) and 27 adults (M = 37 years) using a vignette test. We found that the older the children, the more emotion words they produced. Moreover, with increasing age, children’s pattern of emotion word usage converged with adult usage. The analysis for semantic dimensions revealed one clear criterion—the differentiation of positive versus negative emotions—for all children and adults. We further found that broad covering emotion words are produced earlier and in a more adult-like way.
Digitality and Decolonization: A Response to Achille Mbembe
Authors: Bernal Victoria 
Published: April 2021

AbstractThis article explores questions of decolonization, in part through analyzing Belgium’s Africa Museum. Bernal considers the role of academia and knowledge production, as well as the technological developments that may create new concentrations of power faster than decolonial projects can dismantle established hierarchies. She concludes that decolonization must address material questions of reparations and restitution, and that digital media have been transformative in ways that bring northern models of social existence closer to African ones. Having lived under colonizers, despots, and states of exception, Africans bring important knowledge and experience to twenty-first-century global struggles.
Open Access in Scientific Information: Sustainability Model and Business Plan for the Infrastructure and Organization of OpenAIRE
Authors: Koundouri Phoebe , Chatzistamoulou Nikos , Dávila Osiel González , Giannouli Amerissa , Kourogenis Nikolaos , Xepapadeas Anastasios , Xepapadeas Petros 
Published: April 2021

AbstractIn 2008 European Commission launches the open access infrastructure for research in Europe project (OpenAIRE), supporting open access (OA) in scientific information and research output. In this paper, we assess the economic sustainability of the OpenAIRE project. The empirical strategy is developed through a Cost–Benefit Analysis framework to evaluate and compare the costs and benefits of OpenAIRE services to provide recommendations on the project’s economic efficiency and sustainability, a non-market valuation method based on the results of a “Choice Experiment” to calculate the Total Economic Value generated by OpenAIRE and a full preference ranking approach. Findings indicate that stakeholders prefer interoperability between research platforms and output, better access to scientific results and compliance to OA mandates. Furthermore, net social benefits for the basic services for 15 years are at least five times higher than costs’ present value while the potential R&D effect from research suggests even larger benefits in the long run. Subscriptions based on the estimated willingness to pay and cost, institutional subsidies and public awareness are the main recommendations for the sustainable operation of OpenAIRE. This study contributes to the literature on monetary valuation of the benefits and costs of OA to scientific knowledge.
European and International Perspectives on Benefit-Cost Analysis: Symposium Introduction
Authors: Florio Massimo 
Published: April 2021

AbstractThe idea of assessing the costs and benefits of public and private projects is not new to Europe, dating back to studies at the Ecole des Ponts et Chaussees (Paris) in the XIX century. Later on, in the last century, Benefit-Cost Analysis (BCA) in its current form has been more extensively used in the United States than in Europe. In the last two decades, however, there has been a rapid increase in its use in a number of European countries and at the European Union (EU) level. European governments often undertake tasks that would be done by private companies in the United States, such as the provision of transport, energy, water and waste management, health services, etc. In the United States the focus of BCA has often been regulatory impact analysis, rather than public project evaluation. One might, therefore, expect that Europeans might approach some things differently from their American counterparts and that new insights might result from these efforts. The articles in this symposium, taken from the recent European Society for Benefit-Cost Analysis (SBCA) conference in Toulouse, illustrate some of these differences and some converging themes.
Evaluation of the academic achievements of clinician health services research scientists involved in “pre-K” career development award programs
Authors: Barreto Erin F. , McCoy Rozalina G. , Larson Joseph J. , Warsame Rahma M. , Kennedy Cassie C. , Baker Ashley E. , Hart Elizabeth S. , Pagel Stephanie M. , Whitman Samantha A. , Boehmer Kasey R. , Enders Felicity T. 
Published: April 2021

Abstract

Introduction:
Research career development awards (CDAs) facilitate development of clinician-scientists. This study compared the academic achievements of individuals in a structured institutional “pre-K” CDA program, the Mayo Clinic Kern Scholars program, with individuals who applied for but were not admitted to the Kern program (“Kern applicants”), and awardees of other unstructured internal CDAs.

Methods:
This was a longitudinal cohort study of clinicians engaged in research at Mayo Clinic between 2010 and 2019. The primary outcome was time to the 15th new peer-reviewed publication after the program start, adjusted for baseline number of publications. Secondarily, we described successful awarding of federal funding by the NIH or VA.

Results:
The median (IQR) number of baseline publications was highest among Kern Scholars compared to Kern Applicants or other CDA awardees [16 (12, 29) vs 5 (1, 11) and 8 (5, 16); P < 0.001]. After adjustment for baseline publications, the time to 15th new publication was significantly shorter for Kern Scholars than for the two comparator groups (P<0.001). Similar findings were observed with total new publications within 5 years (P < 0.001), as well as number of new first-/last-author publications within 5 years (P < 0.001). The overall frequency of K-awards, R-awards (or equivalent), or any funding were similar between groups, with the exception of R03 awards, which were significantly more common among Kern Scholars (P = 0.002).

Conclusion:
The Kern Scholars program is a successful training model for clinician-scientists that demonstrated comparatively greater acceleration of scholarly productivity than other internal CDA programs.
Sustained reduction in catheter-associated urinary tract infections using multi-faceted strategies led by champions: A quality improvement initiative
Authors: Reynolds Staci S. , Sova Chris D. , Lewis Sarah S. , Smith Becky A. , Wrenn Rebekah H. , Turner Nicholas A. , Advani Sonali D. 
Published: April 2021

AbstractWe reviewed the sustainability of a multifaceted intervention on catheter-associated urinary tract infection (CAUTI) in 3 intensive care units. During the 4-year postintervention period, we observed reductions in urine culture rates (from 80.9 to 47.5 per 1,000 patient days; P < .01), catheter utilization (from 0.68 to 0.58; P < .01), and CAUTI incidence rates (from 1.7 to 0.8 per 1,000 patient days; P = .16).
Carbapenem-resistant bacteria in an intensive care unit during the coronavirus disease 2019 (COVID-19) pandemic: A multicenter before-and-after cross-sectional study
Authors: Pascale Renato , Bussini Linda , Gaibani Paolo , Bovo Federica , Fornaro Giacomo , Lombardo Donatella , Ambretti Simone , Pensalfine Giulia , Appolloni Lucia , Bartoletti Michele , Tedeschi Sara , Tumietto Fabio , Lewis Russell , Viale Pierluigi , Giannella Maddalena 
Published: April 2021

AbstractObjective:To assess the incidence of colonization and infection with carbapenemase-producing Enterobacteriaceae (CPE) and carbapenem-resistant Acinetobacter baumannii (CR-Ab) in the ICUs of our city hospitals before and during the coronavirus disease 2019 (COVID-19) pandemic.Methods:We conducted a multicenter, before-and-after, cross-sectional study to compare the rates of colonization and infection with CPE and/or CR-Ab in 2 study periods, period 1 (January–April 2019) and period 2 (January–April 2020). Incidence rate ratios (IRRs) and 95% confidence intervals (CIs) of weekly colonization and infection rates for each period were compared for the 2 study periods using Poisson regression. Weekly trends in the incidence of colonization or infection for each study period were summarized using local weighted (Loess) regression.Results:We detected no significant change in either IRR and weekly trend in CPE colonization and infection during the 2 study periods. A shift from KPC to other CPE mechanisms (OXA-48 and VIM) was observed during period 2. Compared to period 1, during period 2 the IRR of colonization and infection with CR-Ab increased 7.5- and 5.5-fold, respectively. Genome sequencing showed that all CR-Ab strains belonged to the CC92/IC2 clonal lineage. Clinical strains clustered closely into a single monophyletic group in 1 of the 3 centers, whereas they segregated in 2 different clusters in the other 2 centers, which strongly indicates horizontal transmission.Conclusions:Our findings indicate the need to conduct infection control activities targeted against the spread of antimicrobial resistance between and within hospitals during the COVID-19 pandemic, and if necessary, remodulating them according to the new organizational structures imposed by the pandemic.
AN UNBOUNDED OPERATOR WITH SPECTRUM IN A STRIP AND MATRIX DIFFERENTIAL OPERATORS
Authors: GIL’ MICHAEL 
Published: April 2021

AbstractLet A and
$\tilde A$
be unbounded linear operators on a Hilbert space. We consider the following problem. Let the spectrum of A lie in some horizontal strip. In which strip does the spectrum of
$\tilde A$
lie, if A and
$\tilde A$
are sufficiently ‘close’? We derive a sharp bound for the strip containing the spectrum of
$\tilde A$
, assuming that
$\tilde A-A$
is a bounded operator and A has a bounded Hermitian component. We also discuss applications of our results to regular matrix differential operators.
SENECA, QVAESTIONES NATVRALES 4B.4.2: AERIS OR TEMPORIS? REMARKS ON THE MEANING OF TEMPVS
Authors: Cancela Cilleruelo Álvaro 
Published: April 2021

AbstractIn Quaestiones naturales 4b.4.2 Seneca states that in early spring the weather drastically changes: in the warmer sky larger water droplets are formed and cause rain. The description of this ‘greater change’ (maior inclinatio) is linked in the manuscript tradition to two different controversial readings, temporis and aeris, which are irregularly distributed. Most recent editors have printed the first reading, but H.M. Hine is probably right to accept aeris. A careful linguistic, stemmatic and stylistic examination shows that temporis is likely to be a Medieval Latin gloss of aeris: the equivalence of both words would be difficult to justify in Classical Latin, but in Late Latin and in Medieval Latin tempus developed a climatological meaning which is explicitly found in medieval writers and glossaries and is also very widespread in Romance languages. The presence of this gloss in the hyparchetype Ψ, which is ultimately the source for most medieval copies, accounts for the irregular distribution of both readings in the manuscript tradition; this hypothesis is particularly consistent with Hine's suggestion that Ψ probably had interlinear or marginal readings. This historical investigation on the meaning of tempus is also relevant to the end of the same passage, where stylistic and linguistic evidence supports the reading tepore rather than tempore.
THEMISTIUS AGAINST PORPHYRY (?) ON ‘WHY WE DO NOT REMEMBER’
Authors: Roreitner Robert 
Published: April 2021

AbstractThis article sheds new light on Themistius’ argument in what is philosophically the most original (and historically the most influential) section of his extant work, namely On Aristotle's On the Soul 100.16–109.3: here, Themistius offers a systematic interpretation of Aristotle's ‘agent’ intellect and its ‘potential’ and ‘passive’ counterparts. A solution to two textual difficulties at 101.36–102.2 is proposed, supported by the Arabic translation. This allows us to see that Themistius engages at length with a Platonizing reading of the enigmatic final lines of De anima III.5, where Aristotle explains ‘why we do not remember’ (without specifying when and what). This Platonizing reading (probably inspired by Aristotle's early dialogue Eudemus) can be safely identified with the one developed in a fragmentary text extant only in Arabic under the title Porphyry's treatise On the soul. While Themistius rejects this reading, he turns out to be heavily influenced by the author's interpretation of the ‘agent’, ‘potential’ and ‘passive’ intellect. These findings offer us a new glimpse into Themistius’ philosophical programme: he is searching for an alternative to both the austere (and, by Themistius’ lights, distorted) Aristotelianism of Alexander of Aphrodisias and the all too Platonizing reading of Aristotle adopted by thinkers such as Porphyry.
Anxiety, alienation, and estrangement in the context of social media
Authors: Qureshi-Hurst Emily 
Published: April 2021

AbstractThis article applies Paul Tillich's existentialist analysis of the human predicament, particularly what it means to exist and to be fallen, to social media. I argue that social media heightens feelings of alienation and estrangement, supporting this claim with evidence from empirical research in psychiatry and communication studies. Thus, I offer an application of a Tillichian approach to an area of culture previously unexamined in this way. I identify three primary ways in which social media exacerbates existentialist emotional states: (1) social media allows us to construct artificial versions of ourselves through the use of filters and photo editing software; (2) it provides the means to quantify social approval in groups the size of which the human brain has not evolved for; (3) it extends the size of our social networks but decreases the quality of interactions. Social media is yet to receive significant philosophical or theological engagement despite its prevalence, particularly within younger generations. I argue that this is a mistake – philosophy has a duty to engage with such a ubiquitous feature of modern life.
Maternal knowledge of the child’s heart defect over a 1-year time span, its development and associated factors
Authors: Knöchelmann Anja , Geyer Siegfried 
Published: April 2021

AbstractBackground:Mothers are the link between patients, physicians, and other caregivers. Therefore, they should be well informed about the child’s heart defect and accompanying issues. This study aimed to assess the mothers’ understanding of their child’s heart defect at hospitalisation and one year later and to analyse the individual development and associated factors.Material and methods:Mothers of children with CHD (aged ≤2 years) were interviewed at time of hospitalisation and after one year. Development was calculated using the Wilcoxon signed-rank test. Knowledge was assessed using the Hannover Inventory of Parental Knowledge of Congenital Heart Disease that consists of eight subscales. Associated factors were self-assessed knowledge at hospitalisation, educational level, cardiac diagnosis, self-assessed severity of CHD, and source of information at follow-up.Results:Mothers showed mixed understanding at hospitalisation, but their knowledge improved over a 1-year time span. This was especially true for the subscales “management of CHD” and “surveillance of deterioration”, which resulted in an overall good knowledge at follow-up, whereas knowledge on infective endocarditis was still poor. Mothers with lowest and highest education had the most notable improvements. The same holds for caregivers with children with more severe CHD and who rated their knowledge as less than good.Conclusion:Overall, mothers showed significant improvement especially for topics that are important to provide adequate care, but still revealed knowledge gaps one year after hospitalisation. Consequently, clinicians should evaluate the individual knowledge level at all times and inform mothers accordingly.
SOME WRITING TIPS FOR PHILOSOPHY
Authors: Earp Brian D. 
Published: April 2021

ABSTRACTIf you grade enough papers, you will find some consistent pitfalls, especially in the writing of students who are coming to philosophy for the first time. I wrote up the following tips a couple of years ago when I was a teaching assistant for an introductory philosophy class at Yale led by Daniel Greco called ‘Problems in Philosophy’. The tips were intended, then, for college students, many of them right out of high school, and most of whom had never written a philosophy paper before. So the focus is on clarity and mastering the basics. With that in mind, I hope you will find these tips helpful for teaching or writing in philosophy (or any other relevant field or discipline).