bluuebunny/crossref_metadata_2025_split huggingface dataset:
From prior information to saccade selection: evolution of frontal eye field activity during natural scene search
Authors: Glaser Joshua I. , Wood Daniel K. , Lawlor Patrick N. , Segraves Mark A. , Kording Konrad P. 
Published: January 2018

AbstractPrior knowledge about our environment influences our actions. How does this knowledge evolve into a final action plan and how does the brain represent this? Here, we investigated this question in the monkey oculomotor system during self-guided search of natural scenes. In the frontal eye field (FEF), we found a subset of neurons, “early neurons,” that contain information about the upcoming saccade long before it is executed, often before the previous saccade had even ended. Crucially, much of this early information did not relate to the actual saccade that would eventually be selected. Rather, it related to prior information about the probabilities of possible upcoming saccades based on the pre-saccade fixation location. Nearer to the time of saccade onset, a greater proportion of these neurons’ activities related to the saccade selection, although prior information continued to influence activity throughout. A separate subset of FEF neurons, “late neurons”, only represented the final action plan near saccade onset and not prior information. Our results demonstrate how, across the population of FEF neurons, prior information evolves into definitive saccade plans.
Overview of thermal arcjet thruster development
Authors: Wollenhaupt Birk , Le Quang Hoa , Herdrich Georg 
Published: January 2018

Purpose
This paper aims to provide an overview of current and historical arcjet development. The reviewed arcjets are considered with respect to both design and thruster relevant parameters. Correspondingly, the paper enables the identification of adequate design criteria and of the probable thruster parameters.

Design/methodology/approach
The approach consists of a database for thruster relevant parameters in conjunction with relevant operational requirements (such as type of propellant) and specific design criteria (such as e.g. propellant injection systems).

Findings
The synopsis of both operational parameter and respectively assigned design allows for the derivation of development approaches for arcjets under given high level requirements such as power regime.

Research limitations/implications
The paper is a general review. However, its strength is in the synthesis of the arcjet classification, the functional evidence of design criteria and the application scenario.

Practical implications
Not only basic but also specific design criteria are analyzed and evaluated leading to a recommendation feature of the paper with respect to the overall design of adequate arcjets.

Social implications
Within the scope of the Clean Space initiative, new applications and scenarios from the operation of arcjets arise enabling EOL phases of spacecraft that fulfill respective levels of debris mitigation and, in addition, the requirements concerning the adequately adapted re-entry of spacecrafts that are at end of life.

Originality/value
The paper is a general review. However, its strength is in the synthesis of the arcjet classification, the functional evidence of design criteria and the application scenario.
An approach to configuration management in the aero-engine overhaul process
Authors: Sun Huibin , Chang Zhiyong 
Published: January 2018

Purpose
The functionality and reliability of an overhauled aero-engine is determined by all configuration changes in the overhaul process. Identifying, recording, auditing, tracking and tracing of configuration modifications are significant and meaningful. Considering the barriers to these goals, this paper aims to put forward an approach to configuration management in the aero-engine overhaul process.

Design/methodology/approach
The overhaul configuration management model is proposed to describe an aero-engine’s configuration evolution trajectory in the overhaul process. The controlling and auditing procedures are put forward to control and audit parts’ return-to-zero statuses and overproof statuses. And some searching algorithms are also designed to enable tracking and tracing of the configuration status along the time coordinate, or get a snapshot of an aero-engine’s configuration at a certain time. The above model, procedures and algorithms have been implemented and adopted to fulfill the configuration management requirements in the aero-engine overhaul process.

Findings
The approach is effective in identifying, recording, controlling, auditing, tracking and tracing configuration changes in the overhaul process.

Practical implications
The approach’s implementation and adoption present a practical example for aero-engines’ configuration management issue in the overhaul process.

Originality/value
The work proposes an original aero-engine configuration management solution for the overhaul process and enables a reliable and accurate configuration management mode.
Mixed fault diagnosis scheme for satellite formation
Authors: Lian Xiaobin , Liu Jiafu , Yuan Laohu , Cui Naigang 
Published: January 2018

Purpose
The purpose of this paper is to present a solution for the uncertain fault with the propulsion subsystem of satellite formation, using the Lur’e differential inclusion linear state observers (DILSOs) and fuzzy wavelet neural network (FWNN) to perform fault detection and diagnosis.

Design/methodology/approach
The uncertain fault system cannot be described based on the accurate differential equations. The set-value mapping is introduced into the state equations to solve the problem of uncertainty, but it will cause output uncertainty. The problem can be solved by linearization of Lur’e differential inclusion state observers. The Lur’e DILSOs can be used to detect uncertain fault. The fault isolation and estimation can be performed using the FWNN.

Findings
The mixed approach from fault detection and diagnosis has featured fast and correct to found the uncertain fault. The simulation results to indicate that the methods of design are not only effective but also have the advantages of good approximation effect, fast detection speed, relatively simple structure and prior knowledge and realization of adaptive learning.

Research limitations/implications
The hybrid algorithm can be extensively applied to engineering practice and find uncertain faults of the propulsion subsystem of satellite formation promptly.

Originality/value
This paper provides a fast, effective and simple mixed fault detection and diagnosis scheme for satellite formation.
Household acquisition of healthy food away from home
Authors: Leschewski Andrea M. , Weatherspoon Dave D. , Kuhns Annemarie 
Published: January 2018

Purpose
The purpose of this paper is to analyze households’ acquisition of healthy food away from home (FAFH) from restaurants. Specifically, determinants of households’ decision to purchase healthy FAFH, the share of households’ FAFH expenditures allocated to healthy FAFH and the share of households’ FAFH calories obtained from healthy items are identified.

Design/methodology/approach
Using data from the National Household Food Acquisition and Purchase Survey, the UK Food Standards Agency’s Nutrient Profiling Model is used to classify the healthfulness of households’ FAFH purchases. A double-hurdle model is estimated to identify determinants of households’ decision to purchase healthy FAFH and the share of their FAFH expenditures and calories allocated to healthy items.

Findings
Households’ acquisition of healthy FAFH varies with income, food assistance, FAFH purchase frequency, dieting, restaurant type, household composition, region and season. There is little difference in the impact of these factors on healthy FAFH expenditure shares vs calorie shares, suggesting that healthy FAFH expenditures proxy the contribution of healthy FAFH to a households’ diet.

Practical implications
Results suggest that increased availability of healthy FAFH may need to be supplemented by targeted advertising and promotions, revisions to nutrition education programs, improved nutrition information transparency and value pricing in order to improve the dietary quality of households’ FAFH acquisitions.

Originality/value
This study is the first to analyze household acquisition of healthy FAFH.
Comparison of three space mapping techniques on electromagnetic design optimization
Authors: Gong Jinlin , Gillon Frédéric , Bracikowski Nicolas 
Published: January 2018

PurposeThis paper aims to investigate three low-evaluation-budget optimization techniques: output space mapping (OSM), manifold mapping (MM) and Kriging-OSM. Kriging-OSM is an original approach having high-order mapping.

Design/methodology/approachThe electromagnetic device to be optimally sized is a five-phase linear induction motor, represented through two levels of modeling: coarse (Kriging model) and fine.The optimization comparison of the three techniques on the five-phase linear induction motor is discussed.

FindingsThe optimization results show that the OSM takes more time and iteration to converge the optimal solution compared to MM and Kriging-OSM. This is mainly because of the poor quality of the initial Kriging model. In the case of a high-quality coarse model, the OSM technique would show its domination over the other two techniques. In the case of poor quality of coarse model, MM and Kriging-OSM techniques are more efficient to converge to the accurate optimum.

Originality/valueKriging-OSM is an original approach having high-order mapping. An advantage of this new technique consists in its capability of providing a sufficiently accurate model for each objective and constraint function and makes the coarse model converge toward the fine model more effectively.
Application of PSO and TLBO algorithms with neural network for optimal design of electrical machines
Authors: Kheireddine Bourahla , Zoubida Belli , Tarik Hacib , Imed Achoui 
Published: January 2018

PurposeThis study aims to focus on the application of the stochastic algorithms for optimal design of electrical machines. Among them, the authors are interested in particle swarm optimization and teaching–learning-based optimization.Design/methodology/approachThe optimization process is realized by the coupling of the above methods to finite element analysis of the electromagnetic field.FindingsTo improve the performance of these algorithms and reduce their computation time, a coupling with the artificial neuron network has been realized.Originality/valueThe proposed strategy is applied to solve two optimization problems: Team workshop problem 25 and switched reluctance motor with flux barriers.
Brand elongation effect
Authors: Zhong Ke , Wang Haizhong , Zhang Caiyun 
Published: January 2018

Purpose
The purpose of this paper is to test the brand elongation effect which is defined as the impacts of the aspect ratio of logo on consumers’ temporal property assessment and brand evaluation.

Design/methodology/approach
This paper provides a theory with experiments.

Findings
The brand elongation effect that strip-shaped logos can make consumers perceive temporal property longer than square-shaped logos has been testified with three pairs fictional logos and one pair real-life one. The valence of temporal property moderates the effect on evaluation of temporal property. The perceived temporal length mediated the shape effect on brand evaluation only when the temporal property is important (vs unimportant) for the product.

Research limitations/implications
This study only deals with the elongation effect of logos’ aspect ratio, without discussing the impact of color, angle/roundness or other graphic properties of logos on consumer attitudes.

Practical implications
This study not only provides empirical supports to update brand logos but also further illustrates that some subtle properties of logos can result in influences that are both significant and substantial.

Originality/value
This research enriches the literature of branding and metaphorical cognition. The findings of this study provide direct implications for brand managers to design logos and manage multi-shape brand logos.
Misfit or xenophillia
Authors: Wu Jie , Ma Zhenzhong 
Published: January 2018

PurposeOverseas work experiences have played a critical role in venture creation and success, yet the impact of overseas work experience on returnee entrepreneurs’ venture capital funding in the Chinese market remains understudied. This paper aims to explore the impact of returnee entrepreneurs’ overseas experiences on their opportunities of venture capital funding in China to help better understand the potential benefits that overseas work experiences bring to emerging markets.Design/methodology/approachThe authors have conducted a two-year inductive field study to explore the impact of overseas experiences on Chinese returnee entrepreneurs’ funding in the Chinese market with in-depth interviews with returnee capital seekers (or the venture founders) and capital providers.FindingsThe results show that returnee entrepreneurs are more likely to succeed in acquiring financial resources for their new ventures if they skillfully present their overseas work experiences and international networks to manage the impression constructed by capital providers.Originality/valueThis research sheds light on how returnee entrepreneurs use impression management in external resource acquisition. It is clear that overseas experience has been regarded a symbol of personal capability closely associated with advanced knowledge and valuable human and social capital in the Chinese context. Resource holders appreciate such an association. The authors suggest that returnee entrepreneurs concerned about how to effectively acquire external resources should reflect upon the ways of presenting themselves to potential investors and fostering a positive image that encourages investors to commit to their ventures.
Do voluntary positive earnings forecasts of Chinese listed companies benefit publicly or privately?
Authors: Zhang Jing , Lu Guihua , Liu Baoliang 
Published: January 2018

PurposeAccording to the Chinese Stock Exchange rules, the listed companies’ management earnings forecasts (MEFs) are divided into mandatory and voluntary earnings forecasts. Different information disclosure mechanisms may bring different economic consequences. Compared with the former, when, how frequently and what kind of voluntary earnings forecasts are disclosed almost entirely depends on the discretion of managers and the major shareholders[1]. The purpose of this paper is to examine whether listed companies’ voluntary earnings forecasts have self-benefited motives before the major shareholders’ selling of original non-tradable shares and how the capital market reacts in China.Design/methodology/approachThis paper uses multiple regression analyses to examine the influence of the major shareholders’ non-tradable shares selling motives on MEFs’ type and frequency of A-share listed companies and makes robust tests using the difference in difference model (DID).FindingsIn the paper, it is found that before the major shareholders’ selling of original non-tradable shares, managers of listed companies are prone to release positive voluntary MEFs; during the shares reduction year of the major shareholders, the disclosure frequency of MEFs is much higher; these forecasts before the major stockholders’ selling have significant higher excess market returns. The evidence suggests that voluntary positive MEFs are for the major shareholders’ self-interested motive rather than for the open, fair and just disclosure purpose that damages the allocation efficiency of the capital market.Originality/valueThis paper enriches the understanding of voluntary MEFs’ incentives literature and provides scientific evidence to improve the supervision of information disclosure and insider trading in Chinese security market.
Mechanoelectrical transduction in chondrocytes
Authors: Servin‐Vences Martha Rocio , Richardson Jessica , Lewin Gary R , Poole Kate 
Published: January 2018

SummaryCartilage tissue lines the joints of mammals, helping to lubricate joint movement and distribute mechanical loads. This tissue is comprised of isolated cells known as chondrocytes which are embedded in an extracellular matrix. Chondrocytes produce and maintain the cartilage by sensing and responding to changing mechanical loads. Mechanosensitive ion channels have been implicated in chondrocyte mechanotransduction and recent studies have shown that both PIEZO1 and TRPV4 can be activated by mechanical stimuli in these cells. The 2 channels mediate separate but overlapping mechanoelectrical transduction pathways, PIEZO1 in response to stretch and substrate deflections and TRPV4 in response to substrate deflections alone. These distinct pathways of mechanoelectrical transduction suggest a mechanism by which chondrocytes can distinguish between different stimuli that arise in their complex mechanical environment.
Evolution of bias and sample size in postoperative pain management trials after hip and knee arthroplasty
Authors: Karlsen A. P. H. , Dahl J. B. , Mathiesen O. 
Published: January 2018

BackgroundBias (systematic error) and small trial sample size (random error) may induce imprecise and exaggerated treatment effects in randomised controlled trials (RCTs). To avoid this,SPIRIT‐ andCONSORT‐guidelines, and Cochrane Collaboration bias recommendations were developed. We investigated risk of bias and trial sample size development over time in postoperative pain trials.MethodsThis study was based on data from two systematic reviews regarding pain management after total hip arthroplasty (THA) or total knee arthroplasty (TKA).RCTs of analgesic interventions with a comparator control group were included. Primary outcomes were risk of bias and trial sample size developments over time. We calculated cumulated bias scores ranging from 0 to 14 based on Cochrane's seven bias domains (0 = low; 1 = unclear, 2 = high). Developments were evaluated with run and control charts. Further, we compared data from trials published between 1990–1999 and 2010–2016.ResultsWe included 171 trials published between 1989 and 2016. Overall, the summarised risk of bias decreased, mainly due to better randomization and allocation concealment. Visual inspection suggested an on‐going improvement that started around 2007. Trial sample size did not change significantly. For trials published between 1990–1999 and 2010–2016 adequate reporting increased from 36% to 75% for random sequence generation, from 9% to 38% for allocation concealment and from 27% to 52% for blinding of participants/personnel.ConclusionRisk of bias forRCTs regarding postoperative pain management afterTHAandTKAhas decreased from 2007 to 2016, mainly due to better randomization and allocation concealment. Deficiencies remain. Thus, reporting according to validated guidelines is essential. Sample sizes did not change significantly.
Laparoscopic transabdominal cerclage: Outcomes of 121 pregnancies
Authors: Ades Alex , Parghi Sneha , Aref‐Adib Mehrnoosh 
Published: January 2018

BackgroundCervical insufficiency is a significant cause of morbidity and mortality. Cervical cerclage is one option in the management of cervical insufficiency.AimTo evaluate obstetric outcomes following insertion of a pre‐pregnancy laparoscopic transabdominal cerclage in women at high risk for pre‐term labour and/or mid‐trimester pregnancy loss.MethodsA prospective observational study of consecutive women who underwent laparoscopic transabdominal cerclage from 2007 to 2017. Eligible women had a diagnosis of cervical insufficiency based on previous obstetric history and/or a short or absent cervix and were considered not suitable for a transvaginal cerclage. The primary outcome was neonatal survival and the secondary outcome was delivery of an infant at ≥34 weeks gestation. Surgical morbidity and complications were also evaluated.ResultsDuring the study period, 225 women underwent laparoscopic transabdominal cerclage. We present the outcomes of 121 pregnancies resulting in 125 babies. The perinatal survival rate of viable pregnancies was 98.5% with a mean gestational age at delivery of 35.2 weeks; 79.7% of babies were delivered at ≥34.0 weeks gestation.ConclusionLaparoscopic transabdominal cerclage is a safe and effective procedure resulting in favourable obstetric outcomes in women with a poor obstetric history. For optimal success the procedure requires the correct surgical expertise, equipment and appropriate patient selection.
Spatial cognition and science achievement: The contribution of intrinsic and extrinsic spatial skills from 7 to 11 years
Authors: Hodgkiss Alex , Gilligan Katie A. , Tolmie Andrew K. , Thomas Michael S. C. , Farran Emily K. 
Published: January 2018

BackgroundPrior longitudinal and correlational research with adults and adolescents indicates that spatial ability is a predictor of science learning and achievement. However, there is little research to date with primary‐school aged children that addresses this relationship. Understanding this association has the potential to inform curriculum design and support the development of early interventions.AimsThis study examined the relationship between primary‐school children's spatial skills and their science achievement.MethodChildren aged 7–11 years (N = 123) completed a battery of five spatial tasks, based on a model of spatial ability in which skills fall along two dimensions: intrinsic–extrinsic; static–dynamic. Participants also completed a curriculum‐based science assessment.ResultsControlling for verbal ability and age, mental folding (intrinsic–dynamic spatial ability), and spatial scaling (extrinsic–static spatial ability) each emerged as unique predictors of overall science scores, with mental folding a stronger predictor than spatial scaling. These spatial skills combined accounted for 8% of the variance in science scores. When considered by scientific discipline, mental folding uniquely predicted both physics and biology scores, and spatial scaling accounted for additional variance in biology and variance in chemistry scores. The children's embedded figures task (intrinsic–static spatial ability) only accounted for variance in chemistry scores. The patterns of association were consistent across the age range.ConclusionSpatial skills, particularly mental folding, spatial scaling, and disembedding, are predictive of 7‐ to 11‐year‐olds’ science achievement. These skills make a similar contribution to performance for each age group.