bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of scanning speed on texture-elicited vibrations
Authors: Greenspon Charles M. , McLellan Kristine R. , Lieber Justin D. , Bensmaia Sliman J. 
Published: June 2019

ABSTRACTTo sense the texture of a surface, we run our fingers across it, which leads to the elicitation of skin vibrations that depend both on the surface and on exploratory parameters, particularly scanning speed. The transduction and processing of these vibrations mediates the ability to discern fine surface features. In the present study, we seek to characterize the effect of changes in scanning speed on texture-elicited vibrations to better understand how the exploratory strategy shapes the neuronal representation of texture. To this end, we scanned a variety of textures across the fingertip of human participants at a variety of speeds (10 – 160 mm/s) while measuring the resulting vibrations using a laser Doppler vibrometer. We found that increases in speed led to systematic increases in vibratory intensity and to a systematic upward multiplicative shift in the frequency composition of the vibrations. Furthermore, we showed that the upward shift in frequency composition accounts for the increase in intensity. The enhancement of higher frequency components accounts for the observed increase in the firing rates of nerve fibers, particularly Pacinian corpuscle-associated fibers, which are most sensitive at the high frequencies.
De novoTranscriptome Characterization ofIris atropurpurea(the Royal Iris,IrissectionOncocyclus) and Phylogenetic Analysis of MADS-box and R2R3-MYB Gene Families
Authors: Yamit Bar-Lev , Esther Senden , Metsada Pasmanik-Chor , Yuval Sapir 
Published: June 2019

AbstractThe Royal Irises,IrissectionOncocyclus, are a Middle-Eastern group of irises, characterized by extremely large flowers with a huge range of flower colors and a unique pollination system. The Royal Irises are considered to be in the course of speciation and serve as a model for evolutionary processes of speciation and pollination ecology. However, no transcriptomic and genomic data for molecular characterization are available for these plants.Transcriptome sequencing is a valuable resource for determining the genetic basis of ecological-meaningful traits, especially in non-model organisms. Here we describe thede novotranscriptome sequencing and assembly ofIris atropurpurea, an endangered species, endemic to Israel’s coastal plain. We employed RNA sequencing to analyze the transcriptomes of roots, leaves, and three stages of developing flower buds. To identify genes involved in developmental processes we generated phylogenetic gene trees for two major gene families, the MADS-box and MYB transcription factors, which play an important role in plant development. In addition, we identified 1,503 short sequence repeats that can be developed for molecular markers for population genetics in irises.In the era of large genetic datasets, theIristranscriptome sequencing provides a valuable resource for studying adaptation-associated traits in this non-model plant. This first reported transcriptome for the Royal Irises, and the data generated from this study, will facilitate gene discovery, functional genomic studies, and development of molecular markers in irises, to complete the intensive eco-evolutionary studies of this group.
Genome-wide sequence-based genotyping supports a nonhybrid origin ofCastanea alabamensis
Authors: Perkins M. Taylor , Zhebentyayeva Tetyana , Sisco Paul H. , Craddock J. Hill 
Published: June 2019

AbstractThe genusCastaneain North America contains multiple tree and shrub taxa of conservation concern. The two species within the group, American chestnut (Castanea dentata) and chinquapin (C. pumilasensu lato), display remarkable morphological diversity across their distributions in the eastern United States and southern Ontario. Previous investigators have hypothesized that hybridization betweenC. dentataandC. pumilahas played an important role in generating morphological variation in wild populations. A putative hybrid taxon,Castanea alabamensis, was identified in northern Alabama in the early 20th century; however, the question of its hybridity has been unresolved. We tested the hypothesized hybrid origin ofC. alabamensisusing genome-wide sequence-based genotyping ofC. alabamensis, all currently recognized North AmericanCastaneataxa, and two AsianCastaneaspecies at >100,000 single-nucleotide polymorphism (SNP) loci. With these data, we generated a high-resolution phylogeny, tested for admixture among taxa, and analyzed population genetic structure of the study taxa. Bayesian clustering and principal components analysis provided no evidence of admixture betweenC. dentataandC. pumilainC. alabamensisgenomes. Phylogenetic analysis of genome-wide SNP data indicated thatC. alabamensisforms a distinct group withinC. pumilasensu lato. Our results are consistent with the model of a nonhybrid origin forC. alabamensis. Our finding ofC. alabamensisas a genetically and morphologically distinct group within the North American chinquapin complex provides further impetus for the study and conservation of the North AmericanCastaneaspecies.
Perturbation of the titin/MURF1 signaling complex is associated with hypertrophic cardiomyopathy in a fish model and in human patients
Authors: Higashikuse Yuta , Mittal Nishant , Arimura Takuro , Yoon Sung Han , Oda Mayumi , Enomoto Hirokazu , Kaneda Ruri , Hattori Fumiyuki , Suzuki Takeshi , Kawakami Atsushi , Gasch Alexander , Furukawa Tetsushi , Labeit Siegfried , Fukuda Keiichi , Kimura Akinori , Makino Shinji 
Published: June 2019

AbstractHypertrophic cardiomyopathy (HCM) is a hereditary disease characterized by cardiac hypertrophy with diastolic dysfunction. Gene mutations causing HCM have been found in about half of the patients, while the genetic etiology and pathogenesis remain unknown for many cases of HCM. To identify novel mechanisms underlying HCM pathogenesis, we generated a cardiovascular-mutant medaka fish non-spring heart (nsh), which showed diastolic dysfunction and hypertrophic myocardium. Thenshhomozygotes had fewer myofibrils, disrupted sarcomeres and expressed pathologically stiffer titin isoforms. In addition, thenshheterozygotes showed M-line disassembly that is similar to the pathological changes found in HCM. Positional cloning revealed a missense mutation in an immunoglobulin (Ig) domain located in the M-line-A-band transition zone of titin. Screening of mutations in 96 unrelated patients with familial HCM, who had no previously implicated mutations in known sarcomeric gene candidates, identified two mutations in Ig domains close to the M-line region of titin.In vitrostudies revealed that the mutations found in both medaka fish and in familial HCM increased binding of titin to muscle-specific ring finger protein 1 (MURF1) and enhanced titin degradation by ubiquitination. These findings implicate an impaired interaction between titin and MURF1 as a novel mechanism underlying the pathogenesis of HCM.
Mathematical relations between measures of brain connectivity estimated from electrophysiological recordings for Gaussian distributed data
Authors: Nolte Guido , Galindo-Leon Edgar , Li Zhenghan , Liu Xun , Engel Andreas K. 
Published: June 2019

AbstractA large variety of methods exist to estimate brain coupling in the frequency domain from electrophysiological data measured e.g. by EEG and MEG. Those data are to reasonable approximation, though certainly not perfectly, Gaussian distributed. This work is based on the well-known fact that for Gaussian distributed data, the cross-spectrum completely determines all statistical properties. In particular, for an infinite number of data, all normalized coupling measures at a given frequency are a function of complex coherency. However, it is largely unknown what the functional relations are. We here present those functional relations for six different measures: the weighted phase lag index, the phase lag index, the absolute value and imaginary part of the phase locking value (PLV), power envelope correlation, and power envelope correlation with correction for artifacts of volume conduction. With the exception of PLV, the final results are simple closed form formulas. We tested in simulations of linear and nonlinear dynamical systems and for empirical resting state EEG on sensor level to what extent a model, namely the respective function of coherency, can explain the observed couplings. For empirical data w e found that for measures of phase-phase coupling deviations from the model are in general minWor, while power envelope correlations systematically deviate from the model for all frequencies. For power envelope correlation with correction for artifacts of volume conduction the model cannot explain the observed couplings at all. We also analyzed power envelope correlation as a function of time and frequency in an event related experiment using a stroop reaction task and found significant event related deviations mostly in the alpha range.
The question of research relevance: a university management perspective
Authors: Tucker Basil P. , Parker Lee D. 
Published: June 2019

Purpose
The purpose of this paper is to empirically investigate the issue of research relevance from the frame of reference of university leaders. Its specific aim is to gain insights into how “relevance” is conceptualised, and the underlying assumptions upon which such conceptualizations are based.

Design/methodology/approach
Adopting an inductive approach, the study collects and analyses data from semi-structured interviews with 31 senior research-related university leaders, and archival sources in five Australian universities.

Findings
Research relevance is primarily viewed as a means of responding to government and political imperatives, as a pathway to ensuring university legitimacy, and as a means of generating further resources. The authors apply this understanding to develop a framework that adopts a nuanced view of relevance, reflecting what is driving research, and to whom research is principally targeted.

Research limitations/implications
The evidence-base upon which the study is based represents a relatively small number of university leaders of Australian universities. Moreover, restricting the investigation to a few senior hierarchical levels nonetheless offers insights into high level organisational drivers hitherto neglected in the accounting research literature on university strategy, governance and accountability. While not addressing perceptions across the university population, this study focusses on and unpacks the social construction of relevance of this select group as research policy makers.

Originality/value
As one of the few empirically informed investigations exploring the issue of research relevance from the perspective of university leaders, this study provides insights rather than “answers”. Its findings therefore serve as a foundational basis for further empirical and theoretical enquiry.
Scaling algorithms in modelling of power loss in soft magnetic composites
Authors: Najgebauer Mariusz , Szczyglowski Jan , Slusarek Barbara , Przybylski Marek 
Published: June 2019

Purpose
The purpose of this paper is to examine scaling algorithms in the description and modelling of power loss in soft magnetic composites (SMCs).

Design/methodology/approach
Three scaling algorithms are examined to determine the most appropriate description of power loss in magnetic composites. The scaling coefficients are estimated in such a way that all measurement data should be collapsed onto a single curve, given in the scaled coordinates. The coefficient estimation is based on a non-linear optimization using the generalized reduced gradient method. The obtained formulae are then used in the power loss modelling.

Findings
It is revealed that only two-component formulae are suitable for the scaling analysis of power loss because these allow obtaining of the collapse of measurement data.

Research limitations/implications
This study considers just one type of SMC (Somaloy 700). Further research will be devoted to the verification of the scaling approach to the power loss modelling for other types of magnetic composites.

Practical implications
The power loss is a basic property of soft magnetic materials, which determines their practical applications. The scaling approach to the power loss modelling gives quite simple models that require a reduced number of measurement data to estimate coefficients.

Originality/value
The scaling algorithms can be a useful tool in the analysis and designing of magnetic circuits made of SMCs.
Design of an induction machine with damper windings for noise and vibrations reduction
Authors: Bauw Gregory , Cassoret Bertrand , Ninet Olivier , Romary Raphael 
Published: June 2019

Purpose
The purpose of this paper is to present a design method for induction machines including a three-phase damper winding for noise and vibrations reduction.

Design/methodology/approach
In the first part, the principle of the damper winding is recalled. The second part presents the iterative design method which is applied on a 4-kW pulse width modulation (PWM)-fed induction machine to study the impact of the additional winding on the geometry. In the third part, the finite-element method is used to validate the designed geometry and highlight the harmonic flux density reduction. Finally, some experimental results are given.

Findings
The study shows that the impact of the additional three-phase winding on the geometry and weight of the machine is low. Moreover, the proposed noise reduction method allows one to reduce the total noise level of a PWM-fed induction machine up to 8.5 dBA.

Originality/value
The originality of the paper concerns the design and characterization of a three-phase damper winding for a noiseless induction machine. The principle of this proposed noise reduction method is new and has been patented.
Interaction and reputation in Airbnb: an exploratory analysis
Authors: Baute-Díaz Nisamar , Gutiérrez-Taño Desiderio , Díaz-Armas Ricardo 
Published: June 2019

PurposeThe purpose of this paper is to study the role of social interaction and reputation when reviewing experiences on the Airbnb platform. Recent studies have suggested that social interaction and aspects related to reputation may encourage positive bias in the case of online ratings and comments.Design/methodology/approachA qualitative research method was used. In total, 20 semi-structured in-depth interviews were conducted with non-professional Airbnb hosts and guests resident on the island of Tenerife (Canary Islands).FindingsFace-to-face interaction between the host and guest could lead to the moderation or omission of negative comments by guests. Reputation is a relevant factor that affects the behaviour of the users on the platform. Users are expected to behave in accordance with certain conventions learned when using the platform.Research limitations/implicationsThe exploratory analysis must be complemented by other quantitative research. The hosts interviewed are not professional hosts.Practical implicationsIt is recommendable for hosts offering average accommodation to pay special attention to welcoming and assisting their guests, with the aim of boosting their reputation on the platform.Originality/valueThis is the first qualitative study to deal with the effect of social interaction and reputation from the point of view of hosts and guests when reviewing experiences on the Airbnb platform.
Contributors to exchange structures and their effects on community solidarity in online communities
Authors: Han Eunyoung , Kim Kyung Kyu , Lee Ae Ri 
Published: June 2019

Purpose
The purpose of this paper is to investigate which exchange structure, direct or generalized exchange, better promotes community solidarity in online communities (OCs). Furthermore, it examines the moderating effects of activity intensity on the relationship between exchange structure and community solidarity in order to resolve the conflicts in extant literature.

Design/methodology/approach
The research model is developed based on the social exchange theory (SET). It also accommodates social structures as determinants of exchange structure, such as organizational identity orientation (OIO) and distributive justice norms. Data in this study were collected from 376 OCs through an e-mail survey.

Findings
Generalized exchange has stronger effects on community solidarity than direct exchange. Furthermore, there was a significant difference in the impact on community solidarity between generalized exchange and direct exchange at high-activity intensity levels, whereas no significant differences were found at low-activity intensity conditions. OIO significantly influences exchange structure. Additionally, equality norm significantly influences generalized exchange, whereas need norm significantly influences direct exchange.

Originality/value
In information systems research, there have not been any attempts to identify the determinants of exchange structure in OCs. Furthermore, only a couple of studies have empirically investigated the relationship between exchange structure and OC solidarity, and yet they found conflicting results. This research makes contributions to an enhancement of theoretical precision of the SET in two ways: by empirically examining the determinants of exchange structure, and by introducing a third variable, activity intensity, as a moderator of the relationship between exchange structure and OC solidarity.
An approach for learning from robots using formal languages and automata
Authors: Aslan Muhammet Fatih , Durdu Akif , Sabancı Kadir , Erdogan Kemal 
Published: June 2019

Purpose
In this study, human activity with finite and specific ranking is modeled with finite state machine, and an application for human–robot interaction was realized. A robot arm was designed that makes specific movements. The purpose of this paper is to create a language associated to a complex task, which was then used to teach individuals by the robot that knows the language.

Design/methodology/approach
Although the complex task is known by the robot, it is not known by the human. When the application is started, the robot continuously checks the specific task performed by the human. To carry out the control, the human hand is tracked. For this, the image processing techniques and the particle filter (PF) based on the Bayesian tracking method are used. To determine the complex task performed by the human, the task is divided into a series of sub-tasks. To identify the sequence of the sub-tasks, a push-down automata that uses a context-free grammar language structure is developed. Depending on the correctness of the sequence of the sub-tasks performed by humans, the robot produces different outputs.

Findings
This application was carried out for 15 individuals. In total, 11 out of the 15 individuals completed the complex task correctly by following the different outputs.

Originality/value
This type of study is suitable for applications to improve human intelligence and to enable people to learn quickly. Also, the risky tasks of a person working in a production or assembly line can be controlled with such applications by the robots.
Effects of voluntary intellectual capital disclosure for disclosing firms
Authors: Vanini Ute , Rieg Robert 
Published: June 2019

Purpose
Mandatory disclosure of a firm’s intellectual capital (IC) is restricted by accounting regulations, leading companies to use voluntary disclosure to inform their stakeholders about their IC. However, voluntary IC disclosure (ICD) is costly and may lead to a leak of knowledge. Consequently, firms should only engage in voluntary ICD if it really reduces information asymmetries and leads to reduced cost of capital or a better reputation. The purpose of this paper is to review, integrate and critically discuss the results of studies examining various effects of voluntary ICD.

Design/methodology/approach
The authors use a structured literature review approach.

Findings
The results mainly support the expected positive effects of voluntary ICD on monetary value for disclosing firms, e.g. lower cost of capital, higher firm value or increased analysts’ following. Nevertheless, the studies mainly represent second stage IC research.

Research limitations/implications
Additional studies concerning effects of voluntary ICD outside capital markets are recommended. Future studies should be based on an improved study design concerning the theoretical underpinning and concept of value relevance, sufficient sample sizes and alternative sources of ICD.

Practical implications
Due to positive monetary effects, firms should engage in voluntary ICD.

Originality/value
The paper reviews and integrates the state-of-the-art of empirical research of effects of voluntary ICD. It contributes to and enlarges the debate concerning the value relevance of voluntary ICD with respect to the different stages of IC research.
A view from the field: the process of improving equitable systems leadership
Authors: Rigby Jessica , Donaldson Walsh Emily , Boten Shelley , Deno Allison , Harrison M. Scott , Merrell Rodrick , Pritchett Sarah , Seaman Scott 
Published: June 2019

Purpose
Research on principal supervisors (PSs) is an emerging field, and principal supervision for racial equity has not yet been studied or theorized. Conducted in partnership with practicing district leaders, the purpose of this paper is to examine current PS leadership in three districts at various points of engagement in equitable leadership practices and set forth a framework for conceptualizing systems equitable leadership practice.

Design/methodology/approach
This collaborative study emerged from an EdD course project in which groups of practitioner–scholars identified and collected qualitative interview, survey and artifact data about problems of practice in their districts. University researchers supported data collection and conducted analyses across settings, building on Ishimaru and Galloway’s (2014) equitable leadership practices framework.

Findings
Equitable PS leadership practices were variable. No district engaged with “proficiency” across all drivers of equitable leadership practice, but the district that engaged in equitable PS practices most deeply framed the work of schooling as a race-explicit endeavor, suggesting that framing is a fundamental driver.

Research limitations/implications
This paper builds on PS and equity-focused leadership research by adding a systems-level equity focus.

Practical implications
Findings suggest that districts should focus on equity framing as the foundation for principal support and development.

Originality/value
This researcher/practitioner–scholar collaboration shows how practitioner–scholars provide focus and expertise to the field unavailable to traditional researchers.