bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transverse nonlinear vibration of the eccentric rotor in a 12/8 switched reluctance motor
Authors: Wang Feng , Wu Zhiqiang , Li Yajie , Wang Yuancen 
Published: April 2020

Purpose
To investigate transverse vibration of the eccentric rotor in a 12/8 poles switched reluctance motor (SRM), a transverse analytical vibration model is built by finite element method (FEM) under the interaction of radial magnetic resultant and vibration displacement. External forces, including radial magnetic resultant and centrifugal force, are also derived in detail, according to the variation of airgap and current and other intermediate parameters with rotation angle.

Design/methodology/approach
The transverse vibration response of the eccentric rotor including radial magnetic resultant and vibration displacement is solved by Newmark-β method, after inputting the currents of three phase windings under angle position control strategy. The basic characteristics of radial magnetic resultant and vibration displacement are reflected in time and frequency domain.

Findings
The magnetic resultant vector of the eccentric rotor presents multi-petals star geometric shape. The frequency distribution of magnetic resultant relates to rotation speed, current waveform and the least common multiple of the stator and rotor teeth. However, the frequency distribution of the vibration displacement also relates closely to the first-order critical whirl speed of the rotor. When the rotor is running at certain speeds, it will display superharmonic resonance and show abundant displacement locus.

Originality/value
By using this analytical model and solving process proposed in this paper, the nonlinear coupled vibration response of the eccentric rotor in SRM can be analyzed and discussed rapidly; only the stator’s winding currents obtained by experiment or electromagnetic simulation is needed as input.
Follow the dancing meme: intergenerational relations in the workplace
Authors: Hirsch Peter Buell 
Published: April 2020

Purpose
This paper aims to examine whether the stereotypes about intergenerational conflict in the workplace have any validity.

Design/methodology/approach
This paper is a review of the available academic literature and popular reactions to it.

Findings
The perception of intergenerational conflict has created its own negative dynamic that is in itself the main source of tension.

Research limitations/implications
By definition, the review of the literature was selective not comprehensive.

Practical implications
If companies can begin to understand this dynamic at work they can follow steps to eliminate it.

Social implications
A better understanding of the absence of meaningful differences in generational attitudes will contribute to better intergenerational collaboration.

Originality/value
The knowledge that intergenerational differences are small is well established in the literature but, to the author’s knowledge, this is one of the first attempts to explore its popular ramifications.
Young adults’ recognition of native advertising disguised as news
Authors: Pasandaran Camelia Catharina , Mutmainnah Nina 
Published: April 2020

Purpose
The purpose of this paper is to test hypotheses on the effects of native advertising on young media consumers. First, it aims to discover whether the young audience activates news-based schema or advertising schema when exposed to different themes of native advertising. Second, this research tests whether there is a relationship between the theme of native advertising and the credibility of the media in which it is placed and the ability of young media consumers to recognize the advertising. Third, it attempts to seek a possible relationship between the recognition of native advertising and the credibility of the advertiser.

Design/methodology/approach
An experimental study was carried out using 186 university students in the greater Jakarta area whose ages ranged between 18 and 22 years. Participants were randomly assigned to six groups (2 × 3 experimental design) and asked to respond to a set of questions related to their awareness of native advertising. They were also asked their opinions on the advertiser’s credibility before and after they were told that the content was native advertising.

Findings
Results show that most of these young media consumers could not spot native advertising and have difficulties in recognizing political native advertising. The findings also point out a more profound decline in advertiser credibility among groups exposed to political native advertising compared to nonpolitical native advertising.

Research limitations/implications
Results show that most of these young media consumers could not spot native advertising and have difficulties in recognizing political native advertising. The findings also point out a more profound decline in advertiser credibility among groups exposed to political native advertising compared to non-political native advertising.

Originality/value
This research shows that the theme of the native advertising has a significant influence on the ability of media consumers to recognize native advertising. The results indicate that non-commercial native advertising is highly deceptive. This finding is valuable for the improvement of advertising regulation, especially on non-commercial native advertising.
Agriculture–nutrition linkages with heterogeneous, unobserved returns and costs: Insights from Tajikistan
Authors: Takeshima Hiroyuki , Akramov Kamiljon , Park Allen , Ilyasov Jarilkasin , Liu Yanyan , Ergasheva Tanzila 
Published: April 2020

AbstractAgriculture–nutrition linkages (ANLs) have been increasingly investigated in the literature. However, nutritional returns and costs of household agricultural production practices (APPs) in semisubsistence settings are poorly understood. We fill these knowledge gaps using pooled cross‐section data sets in Tajikistan, where semisubsistence farming and undernutrition coexist despite relatively good agricultural infrastructure and education systems. Agricultural diversification, yield enhancement, production expansion are positively associated with various nutritional outcomes, particularly in areas with poor food market access. Decomposition exercises suggest that nutritional returns and costs of these APPs vary across households, and the adoption of APPs is driven by the expected nutritional returns. In Tajikistan, improving nutrition through household ANLs requires growing the smallholder agricultural sector in multiple dimensions, including diversification, intensification, and expansion, while also understanding better the pathways of ANLs and addressing bottlenecks at appropriate stages of such pathways.
The effects of autonomy support and psychological capital on readiness for independent living through personal growth initiative among youth in out‐of‐home care
Authors: Kwon Boyoung , Yang Ok Kyung 
Published: April 2020

AbstractThis study explored the effects of the factors on independent living readiness among youth under out‐of‐home care. Specifically, this study focused on the effects of caregivers' autonomy support and psychological capital on independent living readiness through personal growth initiative. A total of 215 youth who were expected to be discharged from caring institution within three years were gathered for the survey, and the final sample was 194 after excluding incomplete responses. Structural equation modeling with Mplus (version 7) was used to test research model and hypotheses in the study. Results showed that the research model was appropriated with several fit indices satisfied and that all the hypotheses were supported. Also, direct and indirect effects of independent variables were fully supported. However, the indirect effect of psychological capital was marginally significant. The results implicate that both caregiver's autonomy support and psychological capital are important for increasing personal growth initiative and that personal growth initiative served as a motivation to facilitating the readiness for independent living among children under institutional care.
VEGFA variants as prognostic markers for the retinopathy in pseudoxanthoma elasticum
Authors: De Vilder Eva Y.G. , Hosen Mohammad J. , Martin Ludovic , De Zaeytijd Julie , Leroy Bart P. , Ebran Jean‐Marc , Coucke Paul J. , De Paepe Anne , Vanakker Olivier M. 
Published: April 2020

AbstractPseudoxanthoma elasticum (PXE) is a rare autosomal recessive ectopic mineralization disorder, characterized by skin, eye and cardiovascular symptoms. The most devastating ocular complication is choroidal neovascularization, which is thought to be mediated by vascular endothelial growth factor (VEGF) signaling, a molecule encoded by the VEGFA gene. As early detection and treatment is essential to preserve vision, prioritization of patients at risk is crucial, but impossible because of wide phenotypic variability and a lack of genotype‐phenotype correlations for PXE. This study aimed to validate the previously suggested association of five single nucleotide VEGFA variants (rs13207351, rs833061, rs699947, rs25648 and rs1413711) with a severe PXE retinopathy in an independent cohort. Direct Sanger sequencing was performed in 100 PXE patients, with a mild (56) or severe (44) PXE retinopathy. The inclusion criteria for severe retinopathy were a unilateral best‐corrected visual acuity of <5/10 and/or the need for anti‐angiogenic treatment. We found a significant association of three of five variants and borderline missed significance for one. These data further suggest the VEGFA gene to be a modifier gene for the PXE retinopathy. Hereby, we provide the necessary evidence to implement these variants in ocular risk stratification and individualized patient follow‐up.
Cholesteatoma and family history: An international survey
Authors: Collins Rachael , Ta Ngan Hong , Jennings Barbara A. , Prinsley Peter , Philpott Carl M. , Steel Nick , Clark Allan 
Published: April 2020

AbstractObjectiveTo explore the relative frequency of a family history of cholesteatoma in patients with known cholesteatoma, and whether bilateral disease or earlier diagnosis is more likely in those with a family history. Associations between cleft lip or palate and bilateral disease and age of diagnosis were also explored.DesignAn online survey of patients with diagnosed cholesteatoma was conducted between October 2017 and April 2019.ParticipantsThe sample consisted of patients recruited from two UK clinics and self‐selected respondents recruited internationally via social media.Main outcome measuresSide of cholesteatoma, whether respondents had any family history of cholesteatoma, age of diagnosis and personal or family history of cleft lip or palate were recorded.ResultsOf 857 respondents, 89 (10.4%) reported a positive family history of cholesteatoma. Respondents with a family history of cholesteatoma were more likely to have bilateral cholesteatoma (P = .001, odds ratio (OR) 2.15, 95% confidence interval (CI) 1.35‐3.43), but there was no difference in the age of diagnosis (P = .23). Those with a history of cleft lip or palate were not more likely to have bilateral disease (P = .051, OR 2.71, CI 1.00‐7.38), and there was no difference in age of diagnosis (P = .11).ConclusionThe relatively high proportion of respondents that reported a family history of cholesteatoma offers supporting evidence of heritability in cholesteatoma. The use of social media to recruit respondents to this survey means that the results cannot be generalised to other populations with cholesteatoma. Further population‐based research is suggested to determine the heritability of cholesteatoma.
Modelled mid‐trophic pelagic prey fields improve understanding of marine predator foraging behaviour
Authors: Green D. B. , Bestley S. , Trebilco R. , Corney S. P. , Lehodey P. , McMahon C. R. , Guinet C. , Hindell Mark A. 
Published: April 2020

Biophysical interactions are influential in determining the scale of key ecological processes within marine ecosystems. For oceanic predators, this means foraging behaviour is influenced by processes shaping the distribution of prey. However, oceanic prey is difficult to observe and its abundance and distribution is regionally generalised. We use a spatiotemporally resolved simulation model to describe mid‐trophic prey distribution within the Southern Ocean and demonstrate insights that this modelled prey field provides into the foraging behaviour of a widely distributed marine predator, the southern elephant seal.From a five‐year simulation of prey biomass, we computed climatologies of mean prey biomass (average prey conditions) and prey biomass variability (meso‐scale variability). We also compiled spatially gridded metrics of seal density and diving behaviour from 13 yr of tracking data. We statistically modelled these metrics as non‐linear functions of prey biomass (both mean and variability) and used these to predict seal distribution and behaviour. Our predictions were consistent with observations (R2adj = 0.23), indicating that seals aggregate in regions of high mesoscale activity where eddies concentrate prey. Here, seals dived deeper (R2marg = 0.12, R2cond = 0.51) and spent less time hunting (R2marg = 0.05, R2cond = 0.56), likely targeting deep but profitable prey patches. Seals generally avoided areas of low eddy activity where prey was likely dispersed. Most seals foraged south of the Subantarctic Front, despite north of the front exhibiting consistently high simulated prey biomasses. This likely reflects seal prey or habitat preferences, but also emphasises the importance of mesoscale prey biomass variability relative to regionally high mean biomass. This work demonstrates the value of coupling mechanistic representations of prey biomass with predator observations to provide insight into how biophysical processes combine to shape species distributions. This will be increasingly important for the robust prediction of species’ responses to rapid system change.
Inter‐colony foraging area segregation quantified in small colonies of Adélie Penguins
Authors: Ito Kentaro , Watanabe Yuuki Y. , Kokubun Nobuo , Takahashi Akinori 
Published: April 2020

Theoretical models on the movement of colonial animals predict that neighbouring colonies may segregate their foraging areas, and many seabird studies have reported the presence of such segregations. However, these studies have often lacked the appropriate null model to test the effect of neighbouring colonies on foraging areas, especially in small colonies or in short‐ranging species. Here, we examined the foraging areas of Adélie Penguins Pygoscelis adeliae from two neighbouring (2 km apart) colonies by using bird‐borne GPS loggers. The field study was conducted at Hukuro Cove colony (104 pairs) and Mizukuguri Cove colony (338 pairs) in Lützow‐Holm Bay, East Antarctica. We obtained GPS tracks for 504 foraging trips from 48 chick‐rearing Adélie Penguins and quantified the degree of overlap in the foraging areas between two colonies. We also produced simulated movement tracks by using correlated random‐walks assuming no inter‐colony competition and quantified the degree of overlap in the simulated foraging areas. Finally, we compared the results from real GPS tracks with those from simulated tracks to examine the effect of neighbouring colonies on Adélie Penguin movement. The results indicate that the degree of overlap was significantly smaller in real tracks than in simulated tracks. In real tracks, the foraging area of the smaller Hukuro Cove colony extended to the other side of the larger Mizukuguri Cove colony, unlike in simulated tracks. Consequently, we suggest that Adélie Penguins from two neighbouring colonies segregated their foraging areas and that the larger colony appeared to affect the foraging area of the smaller colony.
Barriers to blood pressure control in China in a large opportunistic screening
Authors: Chen Xin , Xu Shao‐Kun , Guo Qian‐Hui , Hu Zhe , Wang Hong‐Yu , Yu Jing , Li Wei‐Hua , Tang Guo‐Bao , Zhang Hai‐Feng , Li Yan , Wang Ji‐Guang 
Published: April 2020

AbstractWe investigated the prevalence, awareness, treatment, and control of hypertension in a large opportunistic screening study in China. Our study participants had to be ≥18 years of age and had ideally not taken blood pressure (BP) for ≥1 year. BP was measured three times consecutively in the sitting position with a 1‐minute interval, using a validated electronic BP monitor or mercury sphygmomanometer. Trained volunteer investigators administered a questionnaire to collect information on medical history, lifestyle, and use of medications. The 364 000 participants (52.6% women, and mean age 53.4 years) had a mean systolic/diastolic BP of 124.2/76.4 mm Hg. The proportion of hypertension was 24.7%. In all hypertensive subjects (n = 89 925), the awareness, treatment, and control rates of hypertension were 60.1%, 42.5%, and 25.4%, respectively. In multiple stepwise logistic regression analyses, the odds for unawareness vs awareness of hypertension was higher in men and lower with age advancing, current smoking, and the presence of diabetes mellitus, coronary heart disease, and stroke or transient ischemic attack (P < .0001). The odds for uncontrolled vs controlled hypertension was higher with age advancing and current smoking, and lower with the presence of diabetes mellitus and coronary heart disease (P ≤ .03) in 38 207 treated hypertensive patients, and it was also higher with the use of antihypertensive monotherapy (odds ratio 1.13, P = .0003) in 19 523 treated hypertensive patients with specific antihypertensive drugs. Our study identified several factors as barriers to BP control in China, such as male gender, younger age, current smoking, and the under‐use of combination therapy.
Origin and age of metal veins in Canyon Diablo graphite nodules
Authors: Hilton Connor D. , Ash Richard D. , Piccoli Philip M. , Kring David A. , McCoy Timothy J. , Walker Richard J. 
Published: April 2020

AbstractPrevious studies attributed the origin of metal veins penetrating graphite nodules in the Canyon Diablo IAB main group iron meteorite to condensation from vapor or melting of host metal. Abundances of 16 siderophile elements measured in kamacite within vein and host meteorite are most consistent with an origin by melting of the host metal followed by fractional crystallization of the liquid. The presence of the veins within graphite nodules may be explained by impact, as peak shock temperatures, and thus the most likely areas to undergo metal melting are at metal–graphite interfaces. The origin of the veins is constrained by Re‐Os chronometry to have occurred early (>4 Ga) in solar system history.
Model-Based Control and Stability Analysis of Underactuated Autonomous Underwater Vehicles Via Singular Perturbations
Authors: Lei Ming , Li Ye 
Published: April 2020

Abstract
This paper presents the control design and stability analysis for path-following of underactuated autonomous underwater vehicles (AUVs), with dynamics restricted to the horizontal plane. As illustration, the time-scale separation caused by different rates of numerous variables is exploited via a singular perturbation model formulation. On the basis of that, a time-scale decomposition method is used to decompose the full system into three-time scale subsystems. The three-time scale structure allows independent analysis of dynamics in each time scale. Therefore, control strategies are designed in each subsystem separately, leading to a reduction of control complexity and a relatively simple control law. This paper also demonstrates the asymptotic stability of the closed-loop system with a composite Lyapunov function candidate and provides alternative, simple but generic mathematical bounds on the singularly perturbed parameters. Finally, the simulation results are presented to illustrate the effective performance of proposed controller.
Multiple segment total en bloc vertebrectomy and chest wall resection in a dog with an invasive myxosarcoma
Authors: Liptak Julius M , Veytsman Stan , Kerr Shanna , Klasen Jan 
Published: April 2020

A 9.5‐year‐old, 22.6 kg, castrated male mixed breed dog was diagnosed with a paravertebral myxosarcoma invading into the T9–T11 vertebrae and dorsal left‐sided thoracic wall. A total multisegment vertebrectomy of T9–T12 and chest wall resection of the left 8th–12th ribs were performed to resect the tumour en bloc. A patient‐specific, three‐dimensional implant was designed and printed to reconstruct the defect in the vertebral column following resection of the tumour. This implant was supplemented with four 2.7 mm string‐of‐pearl plates. The chest wall defect was reconstructed with a latissimus dorsi muscle flap. Postoperative complications included neurological deterioration, and necrosis of the latissimus dorsi muscle flap resulting in marked pneumothorax and cardiorespiratory arrest 17 days postoperatively.
Stigmatisation of Indigenous Knowledge: The Case of Night-running in Western Kenya
Authors: Kwanya Tom 
Published: April 2020

Abstract
Night-runners are perceived as faceless, evil people who run naked in the darkness, thereby wreaking havoc in otherwise peaceful rural villages. This paper investigates the origins of night-running, the mysteries associated with it, the benefits and harms of night-running, and the impact of indigenous knowledge (IK) stigmatisation on this practice. Indigenous knowledge is the body of unique beliefs, attitudes, skills, and practices possessed by communities in a specific geographic setting. In spite of its potential value, scholars point out that indigenous knowledge has been neglected, vindicated, stigmatised, legalised, and suppressed among the majority of the world’s communities due to ignorance and arrogance. Night-running is one of the indigenous practices in Western Kenya that has been stigmatised. Given this, little is actually known about night-running. This study was designed as an ethnographic research through which the views of the residents of Homa Bay County on night-running were investigated, collated, and interpreted as a means of demystifying this indigenous practice. The findings of the study indicate that night-running is intrinsically a harmless practice. However, evil persons such as witches sometimes masquerade as night-runners and can hurt or kill people.