bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Non-parametric Test and Predictive Model for Signed Path Dependence
Authors: Dias Fabio S. , Peters Gareth W. 
Published: October 2019

Abstract
While several tests for serial correlation in financial markets have been proposed and applied successfully in the literature, such tests provide rather limited information to construct predictive econometric models. This manuscript addresses this gap by providing a model-free definition of signed path dependence based on how the sign of cumulative innovations for a given lookback horizon correlates with the future cumulative innovations for a given forecast horizon. Such concept is then theoretically validated on well-known time series model classes and used to build a predictive econometric model for future market returns, which is applied to empirical forecasting by means of a profit-seeking trading strategy. The empirical experiment revealed strong evidence of serial correlation of unknown form in equity markets, being statistically significant and economically significant even in the presence of trading costs. Moreover, in equity markets, given a forecast horizon of one day, the forecasting strategy detected the strongest evidence of signed path dependence; however, even for longer forecast horizons such as 1 week or 1 month the strategy still detected such evidence albeit to a lesser extent. Currency markets also presented statistically significant serial dependence across some pairs, though not economically significant under the trading formulation presented.
Commonly used estimates of the genetic contribution to disease are subject to the same fallacies as bad luck estimates
Authors: Björk Jonas , Andersson Tomas , Ahlbom Anders 
Published: October 2019

Abstract
The scientific debate following the initial formulation of the “bad luck” hypothesis in cancer development highlighted how measures based on analysis of variance are inappropriately used for risk communication. The notion of “explained” variance is not only used to quantify randomness, but also to quantify genetic and environmental contribution to disease in heritability coefficients. In this paper, we demonstrate why such quantifications are generally as problematic as bad luck estimates. We stress the differences in calculation and interpretation between the heritability coefficient and the population attributable fraction, the estimated fraction of all disease events that would not occur if an intervention could successfully prevent the excess genetic risk. We recommend using the population attributable fraction when communicating results regarding the genetic contribution to disease, as this measure is both more relevant from a public health perspective and easier to understand.
Indeterminism in Physics, Classical Chaos and Bohmian Mechanics: Are Real Numbers Really Real?
Authors: Gisin Nicolas 
Published: October 2019

AbstractIt is usual to identify initial conditions of classical dynamical systems with mathematical real numbers. However, almost all real numbers contain an infinite amount of information. I argue that a finite volume of space can’t contain more than a finite amount of information, hence that the mathematical real numbers are not physically relevant. Moreover, a better terminology for the so-called real numbers is “random numbers”, as their series of bits are truly random. I propose an alternative classical mechanics, which is empirically equivalent to classical mechanics, but uses only finite-information numbers. This alternative classical mechanics is non-deterministic, despite the use of deterministic equations, in a way similar to quantum theory. Interestingly, both alternative classical mechanics and quantum theories can be supplemented by additional variables in such a way that the supplemented theory is deterministic. Most physicists straightforwardly supplement classical theory with real numbers to which they attribute physical existence, while most physicists reject Bohmian mechanics as supplemented quantum theory, arguing that Bohmian positions have no physical reality.
Effect of seeding methods and hatchery periods on sea cultivation of Saccharina latissima (Phaeophyceae): a Norwegian case study
Authors: Forbord Silje , Steinhovden Kristine B. , Solvang Torfinn , Handå Aleksander , Skjermo Jorunn 
Published: October 2019

Abstract
To reach the goal of an industrialised macroalgae industry in Norway and other high-cost countries in the near future, a standardised seedling production method to improve quality control and predictability of cultivated biomass is essential. A total of 11 different treatments for seeding twine or rope with meiospores, gametophytes or juvenile sporophytes from the kelp Saccharina latissima were measured for growth (frond length, frond area, biomass yield and density) and protein content after 80 and 120 days at sea. Meiospore- and gametophyte-seeded twines were pre-cultivated in the hatchery for 14–42 days prior to deployment, while juvenile sporophytes of different ages were seeded on ropes directly on the day of deployment using a commercial binder to attach the seedlings. The results showed that seeding with meiospores pre-cultivated in the hatchery for 42 days (S42) before deployment gave significantly longer fronds (77.0 ± 6.7 cm) and a higher biomass yield (7.2 ± 0.1 kg m−1) at sea compared to other treatments. The poorest growth was measured for the direct-seeded sporophytes pre-cultivated in free-floating cultures for 35 days prior to deployment (D35; 34.4 ± 2.4 cm frond length and 1.6 ± 0.4 kg m−1). Image analysis was used to measure the coverage of the twine substrate before deployment, and a correlation was found between substrate coverage and frond length at sea, indicating that this can be used as a tool for quantity and quality control during the hatchery phase and before deployment. The protein content did not reveal any large differences between the treatments after 120 days of cultivation.
On Orthogonal Projections for Dimension Reduction and Applications in Augmented Target Loss Functions for Learning Problems
Authors: Breger A. , Orlando J. I. , Harar P. , Dörfler M. , Klimscha S. , Grechenig C. , Gerendas B. S. , Schmidt-Erfurth U. , Ehler M. 
Published: October 2019

AbstractThe use of orthogonal projections on high-dimensional input and target data in learning frameworks is studied. First, we investigate the relations between two standard objectives in dimension reduction, preservation of variance and of pairwise relative distances. Investigations of their asymptotic correlation as well as numerical experiments show that a projection does usually not satisfy both objectives at once. In a standard classification problem, we determine projections on the input data that balance the objectives and compare subsequent results. Next, we extend our application of orthogonal projections to deep learning tasks and introduce a general framework of augmented target loss functions. These loss functions integrate additional information via transformations and projections of the target data. In two supervised learning problems, clinical image segmentation and music information classification, the application of our proposed augmented target loss functions increases the accuracy.
A novel hybrid BPSO–SCA approach for feature selection
Authors: Kumar Lalit , Bharti Kusum Kumari 
Published: October 2019

AbstractNature is a great source of inspiration for solving complex problems in real-world. In this paper, a hybrid nature-inspired algorithm is proposed for feature selection problem. Traditionally, the real-world datasets contain all kinds of features informative as well as non-informative. These features not only increase computational complexity of the underlying algorithm but also deteriorate its performance. Hence, there an urgent need of feature selection method that select an informative subset of features from high dimensional without compromising the performance of the underlying algorithm. In this paper, we select an informative subset of features and perform cluster analysis by employing a cross breed approach of binary particle swarm optimization (BPSO) and sine cosine algorithm (SCA) named as hybrid binary particle swarm optimization and sine cosine algorithm (HBPSOSCA). Here, we employ a V-shaped transfer function to compute the likelihood of changing position for all particles. First, the effectiveness of the proposed method is tested on ten benchmark test functions. Second, the HBPSOSCA is used for data clustering problem on seven real-life datasets taken from the UCI machine learning store and gene expression model selector. The performance of proposed method is tested in comparison to original BPSO, modified BPSO with chaotic inertia weight (C-BPSO), binary moth flame optimization algorithm, binary dragonfly algorithm, binary whale optimization algorithm, SCA, and binary artificial bee colony algorithm. The conducted analysis demonstrates that the proposed method HBPSOSCA attain better performance in comparison to the competitive methods in most of the cases.
The *hope-wh puzzle
Authors: Uegaki Wataru , Sudo Yasutada 
Published: October 2019

AbstractClause-embedding predicates come in three major varieties: (i)responsive predicates(e.g.know) are compatible with both declarative and interrogative complements; (ii)rogative predicates(e.g.wonder) are only compatible with interrogative complements; and (iii)anti-rogative predicates(e.g.hope) are only compatible with declarative complements. It has been suggested that these selectional properties are at least partly semantic in nature. In particular, it has been proposed that the anti-rogativity of neg-raising predicates likebelievecomes from the triviality in meaning that would arise with interrogative complements. This paper puts forward a similar semantic explanation for non-veridical preferential predicates such ashope, which are anti-rogative, unlike their veridical counterparts such asbe happy, which are responsive.
Variation patterns of landslide basal friction revealed from long-period seismic waveform inversion
Authors: Yu Dan , Huang Xinghui , Li Zhengyuan 
Published: October 2019

AbstractA catastrophic landslide struck the Xiaoba village in Fuquan, Guizhou, southwestern China at about 8:30 p.m. (Beijing Time, UTC + 8) on August 27, 2014. The landslide and induced impulse water waves destroyed two villages and killed 23 persons. By reprocessing seismic signals from a seismic network deployed in the surrounding area of the landslide, we recognized the event from low-frequency seismic signals and subsequently performed a long-period seismic waveform inversion to obtain its force–time history. The inversion results reveal that the maximum force for the landslide is 5 × 109 N, and the duration of the landslide is 38.4 s. The landslide reached its maximum velocity of 12.4 m/s at 13.2 s after its initiation, and the mass center plugged into the quarry at 24.2 s. Based on the inversion results, we estimated basal friction of the landslide. We found the friction coefficient rapidly reduces to a relatively steady-state value of ~ 0.4 at a steady-state distance of 35 m and subsequently reduces in a near-linear manner that satisfies the empirical formula$$ \mu = - 1.4d + 0.44 $$μ=-1.4d+0.44, where$$ d $$dis sliding distance in km. The reduction in friction revealed by the formula is compatible with the finding of previous studies for landslides of similar volume in landslide acceleration stage. However, our result does not make it possible for the friction coefficient to increase again in landslide deceleration stage that a velocity-dependent friction law would allow. The friction variation patterns can be used to constrain input parameters in numerical landslide simulation, which can predicate runout distance and deposit areas for massive landslides to carry out landslide hazard assessment.
The valuation and demand impacts of the worthwhile use of travel time with specific reference to the digital revolution and endogeneity
Authors: Wardman Mark , Chintakayala Phani , Heywood Chris 
Published: October 2019

Abstract
The research reported here is concerned with how the worthwhile use of travel time might impact on the value of travel time savings (VTTS) and on demand set in the context of the rail travel market in Great Britain. It has long been recognised, in a variety of literature, that improvements in worthwhile activities which will have been delivered by the digital revolution will impact VTTS and demand yet there is surprisingly little reliable evidence and official appraisal practice does not accommodate any such effects. In a large survey of rail travellers, we have explored how activities while travelling impact on VTTS and demand. An important feature of the study was to account for endogeneity whereby variations in VTTS estimates according to the worthwhile use of time are biased if drawn from comparisons across individuals of what they do while travelling rather from comparing within individual variations in activities. Indeed, we clearly demonstrate the impact of not allowing for endogeneity and indicate its presence in other studies. We find that the VTTS does vary according to activities undertaken while travelling in a largely credible manner and is broadly consistent with behavioural responses to different available activities. The evidence supports the VTTS falling over time due to the digital revolution and rail demand increasing. These are modest rather than considerable changes but nonetheless contribute a better understanding of evidence relating to VTTS and rail demand variations over time.
Exploring self-report and proxy-report quality-of-life measures for people living with dementia in care homes
Authors: Griffiths Alys W. , Smith Sarah J. , Martin Adam , Meads David , Kelley Rachael , Surr Claire A. 
Published: October 2019

Abstract

Purpose
There are many validated quality-of-life (QoL) measures designed for people living with dementia. However, the majority of these are completed via proxy-report, despite indications from community-based studies that consistency between proxy-reporting and self-reporting is limited. The aim of this study was to understand the relationship between self- and proxy-reporting of one generic and three disease-specific quality-of-life measures in people living with dementia in care home settings.

Methods
As part of a randomised controlled trial, four quality-of-life measures (DEMQOL, EQ-5D-5L, QOL-AD and QUALID) were completed by people living with dementia, their friends or relatives or care staff proxies. Data were collected from 726 people living with dementia living in 50 care homes within England. Analyses were conducted to establish the internal consistency of each measure, and inter-rater reliability and correlation between the measures.

Results
Residents rated their quality of life higher than both relatives and staff on the EQ-5D-5L. The magnitude of correlations varied greatly, with the strongest correlations between EQ-5D-5L relative proxy and staff proxy. Internal consistency varied greatly between measures, although they seemed to be stable across types of participants. There was poor-to-fair inter-rater reliability on all measures between the different raters.

Discussion
There are large differences in how QoL is rated by people living with dementia, their relatives and care staff. These inconsistencies need to be considered when selecting measures and reporters within dementia research.
Investigation into mechanisms and kinetics of asphaltene aggregation in toluene/n-hexane mixtures
Authors: Soulgani Bahram Soltani , Reisi Fatemeh , Norouzi Fatemeh 
Published: October 2019

Abstract
Determining the rate of asphaltene particle growth is one of the main problems in modeling of asphaltene precipitation and deposition. In this paper, the kinetics of asphaltene aggregation under different precipitant concentrations have been studied. The image processing method was performed on the digital photographs that were taken by a microscope as a function of time to determine the asphaltene aggregation growth mechanisms. The results of image processing by MATLAB software revealed that the growth of asphaltene aggregates is strongly a function of time. Different regions could be recognized during asphaltene particle growth including reaction- and diffusion-limited aggregation followed by reaching the maximum asphaltene aggregate size and start of asphaltene settling and the final equilibrium. Modeling has been carried out to predict the growth of asphaltene particle size based on the fractal theory. General equations have been developed for kinetics of asphaltene aggregation for reaction-limited aggregation and diffusion-limited aggregation. The maximum size of asphaltene aggregates and settling time were modeled by using force balance, acting on asphaltene particles. Results of modeling show a good agreement between laboratory measurements and model calculations.
Archaeometric studies on early medieval silver jewellery from Central and Eastern Europe
Authors: Miśta-Jakubowska Ewelina , Czech Błońska Renata , Duczko Władysław , Gójska Aneta M. , Kalbarczyk Paweł , Żabiński Grzegorz , Trela Krystian 
Published: October 2019

Abstract
Scanning electron microscopy with X-ray microanalyses (SEM-EDX) was used for a technological study of silver jewellery from three hoards found in Poland. The assemblage consists of 26 artefacts from the period of formation of the first Polish state (900–1039 AD) and can be divided into three groups: West Slavic, post-Moravian and Scandinavian. Research results provide information concerning techniques used for granulation ornament and the provenance of raw silver. Elemental composition changes are manifested mainly by different Cu contents. A higher Cu content was found in solder. The higher Cu content in relation to the morphology of the joining region with visibly spilled granulation demonstrates that the West Slavic beads were produced with the use of metallic soldering. On the other hand, other studied jewelleries are characterised by Cu, Sn, Sb and Zn enrichments in oxidised soldering regions, which implies that they were manufactured with the use of non-metallic soldering. In addition, studies on the provenance of the raw material were made based on the analysis of lead isotopic ratios. For this purpose, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was used, and the obtained lead isotopic ratios were processed using linear discriminant analysis (LDA). The isotope study demonstrates that all examined artefacts were made using re-melted metal from multiple sources. The most probable sources of silver were ores from Uzbekistan, Afghanistan and Freiberg (Germany).
Anatomical reduction and precise internal fixation of intra-articular fractures of the distal radius with virtual X-ray and 3D printing
Authors: Xu Jing , Zhang Guodong , He Zaopeng , Zhong Shizhen , Chen Yongshao , Wei Chunrong , Zheng Yudong , Lin Haibin , Li Wei , Huang Wenhua 
Published: October 2019

Abstract
To evaluate and precisely internal fix intra-articular distal radial fracture (IDRF) using the virtual X-ray and three-dimensional (3D) printing technologies. Twenty-one patients with IDRF were recruited, and the data from digital design group (DDG) and real surgery group (RSG) were collected and analyzed. In DDG, the data from thin-slice computed tomography scan, virtual X-ray measurement parameters, including volar tilt, palmar tilt, radius length (D1), ulnar variation (D2), locking plate position parameter (D3) and distance between key nail and joint surface (D4) were collected. The bone was virtually fixed with the locking plate, and the final model of radius with the screw was obtained by 3D printing. In RSG, the locking plate was precisely pre-bended and used in surgery. During the surgery, the key K-wire was accurately placed and the locking plate was adjusted with the aid of the U-shaped navigation arm. The C-arm was used to observe the positions of key K-wires and the locking plate, and the same above-mentioned parameters were measured intra- and post-operatively. The data from RSG and DDG were compared statistically by t test. This approach proved to be successful in all 21 patients, and none of the screws pierced through the wrist joint surface. All the measured parameters, including the volar tilt, palmar tilt, D1–4, in RSG were not significantly different from preoperative DDG data. Virtual X-ray measurement of anatomical reduction parameters and 3D printing can help the anatomical reduction and precise internal fixation by providing quantitative references, preoperatively, intraoperatively and postoperatively.
Numerical analysis and experimental testing of ultra-high performance fibre reinforced concrete keyed dry and epoxy joints in precast segmental bridge girders
Authors: Gopal Balamurugan A. , Hejazi Farzad , Hafezolghorani Milad , Yen Lei Voo 
Published: October 2019

Abstract
Although ultra-high performance fiber reinforced concrete (UHPFRC) has been used recently as a sustainable construction technique for many precast segmental bridges (PSBs), no exhaustive numerical and experimental studies exist to assess the shear capacity and failure pattern of the joints in these bridges. Hence, to accurately investigate the shear behavior of the joints in UHPFRC precast segmental bridges, a numerical analysis model based on finite-element code was established in this study. Concrete damaged plasticity model was used to analyze the UHPFRC joint models by considering all the geometries, boundaries, interactions and constraints. In this paper, the numerical model was calibrated by two full-scale UHPFRC keyed dry and epoxy joints under confining pressure effect. The excellent agreement between the numerical results and experimental data demonstrated the reliability of the proposed numerical model. The validated numerical model was then utilized to investigate the parameters affecting shear behaviour of the joints in PSBs. For this purpose, 12 FE models were analyzed under different variable parameters namely, number of shear keys, confining stress, and types of joints (dry or epoxy). Furthermore, the numerical results were also compared with the five existing shear design provision models available in literature in terms of ultimate shear capacity.
HIV in Pregnancy
Authors: Bagga Rashmi , Arora Parul 
Published: October 2019

AbstractHIV in pregnancy assumes additional importance because of the risk of perinatal transmission. With the increase in number of people living the HIV–AIDS worldwide, better ART policies and improved heath condition, more women with HIV are getting pregnant. Perinatal transmission occurs mostly during labour and delivery; transmission during antenatal period may also occur. Timely administration of appropriate ART, suppressed viral load, appropriate mode of delivery and safe feeding practices can reduce the risk of perinatal transmission to minimal. ART has evolved from single dose therapy to daily fixed-dose lifelong ART to all women irrespective of the clinical stage and CD4 count. NACO recommends tenofovir 300 mg + lamivudine 300 mg + efavirenz 600 mg once daily (TDF + 3TC + EFV) for all pregnant women to be continued lifelong after delivery. ART for the mother, safe mode of delivery, ART for newborn and exclusive breast feeding can together ensure a safe pregnancy for the mother and with minimal risk of perinatal transmission. This assumes importance in developing counties like India.