bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamic failure and crash simulation of carbon fiber sheet moulding compound (CF-SMC)
Authors: Coren Federico , Stelzer Philipp S. , Reinbacher Daniel , Ellersdorfer Christian , Fischer Peter , Major Zoltan 
Published: March 2021

Abstract
Carbon fiber sheet moulding compounds (CF-SMC) are a promising class of materials with the potential to replace aluminium and steel in many structural automotive applications. In this paper, we investigate the use of CF-SMC materials for the realization of a lightweight battery case for electric cars. A limiting factor for a wider structural adoption of CF-SMC has been a difficulty in modelling its mechanical behaviour with a computational effective methodology. In this paper, a novel simulation methodology has been developed, with the aim of enabling the use of FE methods based on shell elements. This is practical for the car industry since they can retain a good fidelity and can also represent damage phenomena. A hybrid material modelling approach has been implemented using phenomenological and simulation-based principles. Data from computer tomography scans were used for micro mechanical simulations to determine stiffness and failure behaviour of the material. Data from static three-point bending tests were then used to determine crack energy values needed for the application of hashing damage criteria. The whole simulation methodology was then evaluated against data coming from both static and dynamic (crash) tests. The simulation results were in good accordance with the experimental data.

Graphic abstract
Effect of Yokukansan on sleep disturbance and neuropathic pain in chronic constriction injury using a rat model
Authors: Deguchi Ryo , Fujimoto Moe , Sekiyama Hiroshi , Sawamura Shigehito 
Published: March 2021

AbstractPatients with chronic pain develop peripheral neuropathy and experience sleep disturbance. Yokukansan is used to treat insomnia and control neuropathic pain. We studied if Yokukansan affects neuropathic pain and sleep disturbance using a rat model of chronic constriction injury (CCI). Male Wistar rats (4-week age) were divided into the following groups (n = 7, per group): CCI rats fed normal chow (CCI-0); CCI rats fed powdered chow mixed with 1% Yokukansan (CCI-1); CCI rats fed powdered chow mixed with 3% Yokukansan (CCI-3); and sham-operated control rats fed normal chow (SHAM). We examined sleep duration and quality using electroencephalograms and assessed pain using the von Frey and Hargreaves tests. Results were analyzed by one-way analysis of variance and Bonferroni post hoc tests. The CCI-0 group exhibited an increased wake period, decreased non-rapid eye movement (REM) sleep time, and no change in REM sleep time in comparison to the SHAM group. The CCI-1 group exhibited a decreased wake period, increased non-REM sleep time, and no change in REM sleep time compared to the CCI-0 group. The CCI-3 group exhibited increased non-REM sleep time but no changes in wake and REM sleep times compared to the CCI-1 group. The von Frey and Hargreaves test findings revealed an increase in the pain threshold in the CCI-1 group compared to the CCI-0 group. There was no difference in pain threshold between the CCI-1 and CCI-3 groups. In our rat model of CCI, sleep disturbance was reflected. Yokukansan inhibited CCI-induced sleep disturbance.
Classification of lymphocytes, monocytes, eosinophils, and neutrophils on white blood cells using hybrid Alexnet-GoogleNet-SVM
Authors: Çınar Ahmet , Tuncer Seda Arslan 
Published: March 2021

AbstractWhite blood cells (WBC), which form the basis of the immune system, protect the body from foreign invaders and infectious diseases. While the number and structural features of WBCs can provide important information about the health of people, the ratio of the subtypes of these cells and observable deformations are a good indicator in the diagnostic process. The recognition of cells of the type of lymphocytes, neutrophils, eosinophils, basophils and monocytes is critical. In this article, Deep Learning based Hybrid CNN (Convololutional Neural Network) model is proposed for classification of eosinophils, lymphocytes, monocytes, and neutrophils WBCs. The model presented is based on pretrained Alexnet and Googlenet architectures. The feature vector in the last pooling layer of both CNN architectures has been merged, and the resulting feature vector is classified by the Support Vector Machine. To determine the superiority of the proposed method, the classification was also performed and compared using pretrained Alexnet and Googlenet. Hybrid Alexnet-Googlenet-SVM model provides higher accuracy than pretrained Alexnet and Googlenet. The proposed method has been tested with WBC images from Kaggle and LISC database. Accuracy and F1-score were 99.73%, 0.99 and 98.23%, 0.98 for both data sets, respectively.
Generalised Pattern Search Based on Covariance Matrix Diagonalisation
Authors: Neri Ferrante , Rostami Shahin 
Published: March 2021

AbstractPattern Search is a family of gradient-free direct search methods for numerical optimisation problems. The characterising feature of pattern search methods is the use of multiple directions spanning the problem domain to sample new candidate solutions. These directions compose a matrix of potential search moves, that is the pattern. Although some fundamental studies theoretically indicate that various directions can be used, the selection of the search directions remains an unaddressed problem. The present article proposes a procedure for selecting the directions that guarantee high convergence/high performance of pattern search. The proposed procedure consists of a fitness landscape analysis to characterise the geometry of the problem by sampling points and selecting those whose objective function values are below a threshold. The eigenvectors of the covariance matrix of this distribution are then used as search directions for the pattern search. Numerical results show that the proposed method systematically outperforms its standard counterpart and is competitive with modern complex direct search and metaheuristic methods.
The elephant at the dump: how does garbage consumption impact Asian elephants?
Authors: Liyanage Dulmini J. , Fernando Prithiviraj , Dayawansa P. Nihal , Janaka H. K. , Pastorini Jennifer 
Published: March 2021

AbstractWe studied garbage consumption by Asian elephants at the Uddakandara garbage dump in southern Sri Lanka. Garbage at the dump was classified under six categories and quantified using a grid overlay. Elephants visiting the dump were individually identified by morphological criteria and items and quantities consumed by them were determined by focal animal sampling. Dung of elephants that did not consume garbage and those from the dump were compared quantitatively and dung constituents assessed by washing through three layered sieves. A total of 17 individual elephants visited the garbage dump during the study period, all of who were males. The observed sexual bias could be related to behavioural differences between the sexes. Elephants mostly consumed ‘fruits and vegetables’ and ‘prepared food’, possibly due to their higher palatability and nutritional value. Ingestion of polythene was incidental and associated with consuming prepared food. Proportions of the six categories in elephant diet and garbage piles were significantly different, indicating that elephants were highly selective when feeding. Elephant arrivals increased in response to unloading of garbage, suggesting attraction to fresh garbage. Dung analysis found that garbage consumption did not change the quantity and constituents of dung, except for the presence of anthropogenic items. As consumed anthropogenic items were regularly excreted, retention and obstruction of the alimentary tract are unlikely in elephants. Elephants feeding on garbage had better body condition than non-garbage consuming elephants, indicating that garbage provided better nutrition than natural food and was not detrimental to their health.
From a mother's point of view: Psycho‐social predictors of maternal monitoring strategy and adolescents' electronic media use
Authors: Schenkel Konstantin , Radtke Theda , Luszczynska Aleksandra , Lüscher Janina , Kulis Ewa , Scholz Urte 
Published: March 2021

ABSTRACTIntroductionAs early adolescents have limited capacities for self‐regulating electronic media use (EMU), parental monitoring is needed. However, research has shown that parents do not exert much monitoring over their children's EMU. A theory‐based approach may help to identify key predictors of parental monitoring and its effects on adolescents' EMU. Applying the Health Action Process Approach (HAPA), this study examined maternal psycho‐social predictors of maternal monitoring of EMU and, subsequently, children's EMU.MethodsIn Switzerland, 105 mother‐adolescent dyads participated in an observational study with two time points (baseline, T1, and follow‐up, T2) two weeks apart. Mothers (Mage = 43.83 years, SD = 4.45) reported on their HAPA variables and their children's EMU. Adolescents (Mage = 12.13 years, SD = 0.99; 60 girls and 45 boys) also reported their EMU.ResultsMaternal outcome expectancies (T1) for less EMU were positively related (β = 0.25) with their intention to monitor EMU (T1). Further, intention was positively associated (β = 0.45) with planning to monitor EMU (T1) which in turn predicted marginally (β = 0.18) maternal monitoring (T2). No significant associations were found between maternal monitoring (T2) and adolescents’ EMU (T2) reported by mothers and adolescents.ConclusionsContrary to hypotheses derived from the HAPA, findings demonstrate that not all the HAPA variables are linked to maternal monitoring of adolescents’ EMU. More research is thus needed to identify antecedents and consequences of different strategies of maternal monitoring.
Calculating block time and consumed fuel for an aircraft model
Authors: de Lemos F. , Woodward J. 
Published: March 2021

ABSTRACTIn this paper we present a novel approach to calculate Block Time and Fuel (BTF) consumed for an aircraft model during a flight. The BTF model computes the ground distance between the origin and destination airports, derives the flight’s cruise altitude and by integrating two institutional data sets calculates the duration and the fuel consumed for the whole of taxi-out, take-off, climb, cruise, descent, approach, landing and taxi-in phases. We use the French Association for Operational Research and Decision Support (ROADEF) 2009 Challenge flight rotation to sample our model. The statistical analysis of the results consisted of comparing BTF results for the block time and those from the ROADEF Challenge 2009 with the real ones retrieved from Flightaware® for the same origin and destination airports and aircraft model. Statistical results are reported for percentile and root mean square error, and we show that, using simple calculations, the BTF computational results for block time are in a lower percentile and have lower root mean square error than the block times used by the ROADEF 2009 Challenge. To compare the fuel consumed, we used the values for the real flights published in the literature review. We were able to verify a good fit between the BTF results and those values. Since the BTF model computational results are obtained within a few seconds, we also conclude that the BTF model is suited for flight planning and disruption recovery in commercial aviation.
Low support for nudging among Swedes in a population-representative sample
Authors: Almqvist Gustav , Andersson Patric 
Published: March 2021

AbstractRecent surveys in China, South Korea, Brazil, South Africa, Russia, Australia, Italy, the UK, Canada, France, Germany, the USA, Japan, Hungary, and Denmark indicate that citizens generally are positive toward state nudging. However, less is known about differences in the support for nudging across socio-demographics and political party preferences, a research gap recently identified in the literature. This article investigates the relationship between the support for nudging and trust in public institutions through a population-representative survey in Sweden. It also analyzes differences in the support for nudging across political party preferences in two ideological dimensions: the economic left-right and cultural GAL-TAN spectra. Data were collected in December 2017 through a custom web survey, using Reisch and Sunstein's (2016) questionnaire. The respondents (N = 1032) were representative of the adult population with regard to gender, age, education, job sector, household income, living region, and political party preference. Sweden was found to belong to the cautiously pronudge nations (along with Japan, Hungary, and Denmark), contrary to hypotheses in previous research. Differences in the support for nudging were found along the economic left-right and GAL-TAN spectra. Individual nudges’ variation in support, polarization, and politicization are analyzed and discussed.
Survival Analysis and Risk Factors in COVID-19 Patients
Authors: Lu Wen , Yu Shuhui , Liu Hailing , Suo Lihua , Tang Kuanyin , Hu Jitao , Shi Yantong , Hu Ke 
Published: March 2021

AbstractObjective:The aim of this study is to evaluate the clinical characteristics and outcomes in 2019 coronavirus disease (COVID-19) patients and to help clinicians perform correct treatment and evaluate prognosis and guide the treatment.Methods:Patients totaling 239 were diagnosed with COVID-19 and were included in this study. Patients were divided into the improvement group and the death group according to their outcome (improvement or death). Clinical characteristics and laboratory parameters were collected from medical records. Continuous variables were tested by an independent sample T test, and categorical variables were analyzed by the chi-square test or Fisher’s exact test. The Cox proportional hazard regression model was used for survival analysis in death patients. The time-dependent area under curves (AUC) based on white blood cell count, lymphocyte count, neutrophil count by age, blood urea nitrogen, and C-reactive protein were plotted.Results:Efficacy evaluation indicated that 99 (41.4%) patients had deteriorated, and 140 (58.6%) patients had improved. Oxygen saturation, hemoglobin levels, infection-related indicators, lymphocyte and platelet counts, C-reactive protein, serum albumin, liver and kidney function, and lactate dehydrogenase in improvement group were statistically significant between the improvement and death groups. A survival analysis revealed that comorbidities, lymphocyte counts, platelet count, serum albumin, C-reactive protein level, and renal dysfunction may be risk factors in patients with COVID-19.Conclusion:Patients with comorbidities, lower lymphocyte counts in hemogram, platelet count and serum albumin, high C-reactive protein level, and renal dysfunction may have higher risk for death. More attention should be given to risk management in the progression of COVID-19.
Stigma Associated with COVID-19 Among Health Care Workers in Indonesia
Authors: Yufika Amanda , Pratama Rovy , Anwar Samsul , Winardi Wira , Librianty Nurfanida , Prashanti Nyoman Ananda Putri , Sari Tri Novita Wulan , Utomo Prattama Santoso , Dwiamelia Theresia , Natha Putu Pangestu Cendra , Salwiyadi Salwiyadi , Asrizal Febrivan Wahyu , Ikram Ikram , Wulandari Irma , Haryanto Sotianingsih , Fenobilire Nice , Wagner Abram L , Jamil Kurnia Fitri , Mudatsir Mudatsir , Harapan Harapan 
Published: March 2021

AbstractObjective:The aim of this study was to assess the stigma associated with coronavirus disease - 2019 (COVID-19) among health care workers (HCWs) in Indonesia during the early phase of the pandemic.Methods:A cross-sectional study was conducted in 12 hospitals across the country in March, 2020. A logistic regression was employed to assess the association between stigma and explanatory variables.Results:In total, 288 HCWs were surveyed, of which 93.4% had never experienced any outbreaks. Approximately 21.9% of the respondents had stigma associated with COVID-19. HCWs who were doctors, had not participated in trainings related to COVID-19, worked in the capital of the province, worked at private hospitals, or worked at a hospital with COVID-19 triage protocols were likely to have no stigma associated with COVID-19.Conclusions:The stigma associated with COVID-19 is relatively high among HCWs in the early phase of the COVID-19 pandemic in Indonesia. Adequate dissemination of knowledge and adequate protection are necessary to reduce stigma among HCWs.
From World War II to COVID-19: A Historical Perspective on the American Medical Supply Chain
Authors: Bechtold Hunter D , Cruz Andrea T , Kaziny Brent D 
Published: March 2021

AbstractCOVID-19 is the latest episode of shortages of critical medical supplies. Historically and to the present day, medical supplies have been sourced from single regions in the world, thus rendering the supply chain vulnerable to a myriad of harmful circumstances. We argue that shortages in medications related and unrelated to COVID have illustrated the need for the United States to diversify its medical supply sources before future pandemics, political crises, or natural disasters occur.
Does adaptive thermogenesis occur after weight loss in adults? A systematic review
Authors: Nunes Catarina L. , Casanova Nuno , Francisco Ruben , Bosy-Westphal Anja , Hopkins Mark , Sardinha Luís B. , Silva Analiza M. 
Published: March 2021

AbstractAdaptive thermogenesis (AT) has been proposed to be a compensatory response that may resist weight loss (WL) and promote weight regain. This systematic review examined the existence of AT in adults after a period of negative energy balance (EB) with or without a weight stabilisation phase. Studies published until 15 May 2020 were identified from PubMed, Cochrane Library, EMBASE, MEDLINE, SCOPUS and Web of Science. Inclusion criteria included statistically significant WL, observational with follow-up or experimental studies, age > 18y, sample size ≥10 participants, intervention period ≥ 1week, published in English, objective measures of total daily energy expenditure (EE) (TDEE), resting EE (REE) and sleeping EE(SEE). The systematic review was registered at PROSPERO (2020 CRD42020165348). A total of thirty-three studies comprising 2528 participants were included. AT was observed in twenty-seven studies. Twenty-three studies showed significant values for AT for REE (82·8 %), four for TDEE (80·0 %) and two for SEE (100 %). A large heterogeneity in the methods used to quantify AT and between subjects and among studies regarding the magnitude of WL and/or of AT was reported. Well-designed studies reported lower or non-significant values for AT. These findings suggest that although WL may lead to AT in some of the EE components, these values may be small or non-statistically significant when higher-quality methodological designs are used. Furthermore, AT seems to be attenuated, or non-existent, after periods of weight stabilisation/neutral EB. More high-quality studies are warranted not only to disclose the existence of AT but also to understand its clinical implications on weight management outcomes.
Colony and Empire, Colonialism and Imperialism: A Meaningful Distinction?
Authors: Kumar Krishan 
Published: March 2021

AbstractColony and empire, colonialism and imperialism, are often treated as synonyms.This can be acceptable for many purposes. But there may be also good reasons to distinguish between them. This article considers in detail one important attempt in that direction by the classicist Moses Finley. It argues that there is considerable strength in that approach, putting the stress as it does on the distinctiveness of the settler community. It is also valuable in suggesting that early-modern Western colonialism marked a new departure in an older history of imperialism, thus once again suggesting the need for a conceptual separation of the two. But the article concludes that ultimately more may be lost than gained by insisting on the distinction. In particular, it inhibits wide-ranging comparisons between ancient and modern, and Western and non-Western, empires, which can often suggest illuminating connections and parallels. The field of empire studies gains by drawing on the rich store of examples provided by the whole history of empire, from the earliest times to now. Western colonialism is part of that story; to separate it out is to impoverish the field.
Iceberg disturbance to benthic communities in McMurdo Sound, Antarctica
Authors: Kim Stacy , Collins Clint A. 
Published: March 2021

Abstract
On the continental shelf of the Antarctic the major disturbance to benthic ecosystems is from iceberg scouring; however, this is based on observations from the Peninsula region. We combine observation and experimentation in the McMurdo Sound region of the Ross Sea to determine if community recovery patterns there are similar to those in better-studied Antarctic regions, and if local immigration is an important factor in recovery dynamics. We found that regardless of habitat differences in depth, substrate, and oceanographic setting, iceberg disturbance strongly impacted benthic communities in McMurdo Sound. Notably, in shallow water (<30 m) where anchor ice is an annual disturbance, both the benthic communities and recovery processes were more variable than at deeper locations. A manipulative experiment performed in a shallow area indicated that recruitment might be more important than immigration to infaunal community recovery. We conclude that whilst disturbance frequency influences dominant epifauna, recovery from iceberg disturbance is a slow ecological progression that is dependent on the extremely inconsistent recruitment processes of the high Antarctic benthic ecosystem.
The proposer or the proposal? An experimental analysis of constitutional beliefs
Authors: McElwain Kenneth Mori , Eshima Shusei , Winkler Christian G. 
Published: March 2021

AbstractIn many countries, constitutional amendments require the direct approval of voters, but the consequences of fundamental changes to the powers and operations of the state are difficult to anticipate. The referendums literature suggests that citizens weigh their prior beliefs about the merits of proposals against the heuristic provided by the partisanship of the proposer, but the relative salience of these factors across constitutional issue areas remains underexplored. This paper examines the determinants of citizen preferences on 12 diverse constitutional issues, based on a novel survey experiment in Japan. We show that support for amendments is greater when its proposer is described as non-partisan. However, constitutional ideology moderates this effect. Those who prefer idealistic constitutions that elevate national traditions tend to value proposals that expand government powers, compared to those who prefer pragmatic constitutions that constrain government authority. These results highlight the significance of constitutional beliefs that are independent of partisanship.