bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lubrication effectiveness investigation on the friendly capped MoS2 nanoparticles
Authors: Wu Hongxing , Wang Liping , Dong Guangneng , Yang Shuncheng , Zhang Junfeng , Zhou Bin , Tang Zhengyi 
Published: November 2016

AbstractThe compatibility and effectiveness of nanoparticles with the existing additives in formulated oil are still unclear. In the present study, some lubricant additives were selected to modify nanoparticles to obtain friendly capped nano‐MoS2. Various polyisobutyleneamine succinimide (PIBS) concentrations were applied to investigate the lubrication effectiveness of capped nano‐MoS2. The results showed that the reduction in COF and wear volume of friendly capped nanoparticles without PIBS reached about 35% and 75% in comparison with those of the base oil respectively. However, the average coefficient of friction and wear volume loss of nano oil increased with PIBS concentration in the range of 0.05%–1%. By scanning electron microscope, energy‐dispersive X‐ray spectroscopy and X‐ray photoelectron spectroscopy analysis, it is identified that (i) MoS2 tribofilm was formed on the wear track for the oil with nano‐MoS2 and (ii) wear scar was smooth for nano‐MoS2 with low PIBS concentration and without PIBS, while it showed plowing wear when containing high PIBS concentration. Copyright © 2016 John Wiley & Sons, Ltd.
Exploring Consumer Insights in Wine Marketing: An Ethnographic Research on #Winelovers
Authors: Cuomo Maria Teresa , Tortora Debora , Festa Giuseppe , Giordano Alex , Metallo Gerardino 
Published: November 2016

ABSTRACTNowadays social media offer a great opportunity to wineries in order to better understand their customers’ needs, both potential and actual. Especially for winelovers, their collective imagination, expectations, and lifestyle in terms of passion for wine can be continually supervised and used in brand strategies. By collecting these data on Instagram and analyzing them through a netnographic research, the purpose of the present study is to validate the emerging “map of identity” for winelovers as a basis of segmentation in the wine sector. In a second step, the accuracy of the profiles has been tested by distributing a questionnaire both to a specific community of winelovers and to a control group of self‐defined winelovers active on Facebook. The findings underline that winelovers’ identities could be better arranged considering their knowledge and awareness in consumption, even though they clearly represent a basis for further in‐depth researches, interested in exploring attitudes, values, and motivations of winelovers and wine consumers on the Web.
Influence of the Virtual Brand Community in Sports Sponsorship
Authors: Alonso Dos Santos Manuel , Calabuig Moreno Ferran , Rejón Guardia Francisco , Pérez Campos Carlos 
Published: November 2016

ABSTRACTThis study explores how the virtual brand community (VBC) of soccer‐team supporters influences the brand's attitude toward sponsorship according to the theory of image transfer. The study provides a comparative analysis using both structural equation modeling (SEM) and qualitative comparative analysis (QCA). A total of 609 supporters of a professional, first‐division Spanish soccer team provide the data. The results from SEM support the importance of control, attitude toward the team, and identification variables. However, SEM cannot assure the usefulness of variables such as trust and opportunism when evaluating the resulting attitude toward the sponsor. The results from the fuzzy‐set QCA on the same data set show that not all variables are necessary conditions in order to influence sponsorship. The most relevant variables to obtain valid and useful results are control, attitude toward the team, and trust. The combination of attitude toward the team, identification, and trust is also valid. Attitude toward the team and trust variables are present in the two combinations of variables leading to a positive, favorable attitude toward the sponsor, thus reflecting their importance in marketing experts’ assessment of image transmission in professional teams.
Self or Simulacra of Online Reviews: An Empirical Perspective
Authors: Singh Vivek Kumar , Nishant Rohit , Kitchen Philip J. 
Published: November 2016

ABSTRACTOnline user‐generated content includes various forms of computer‐mediated online reviews, ratings, and feedback. The impact of online consumer reviews has been widely studied particularly in e‐commerce, online marketing, and consumer behavior domains using text‐mining and sentiment analysis. Such studies often assume that consumer‐submitted online reviews truly represent consumer experiences, but multiple studies on online social networks suggest otherwise. Drawing from the social network literature, this paper investigates the impact of peers on consumer willingness to write and submit online reviews. An empirical study using data from “Yelp,” a globally used online restaurant review Web site, shows that the number of friends and fans positively impacts the number of online consumer reviews written. Implications for research and practice are discussed.
Examining the Effects of Online Social Networks and Organizational Learning Capability on Innovation Performance in the Hotel Industry
Authors: Palacios‐Marqués Daniel , Devece‐Carañana Carlos , Llopis‐Albert Carlos 
Published: November 2016

ABSTRACTThe purpose of this paper is to explore the effects of online social networks and organizational learning capability on innovation performance. The paper is theory‐confirming. Theoretical relationships were tested using an empirical study of 202 four‐star and five‐star Spanish hotels. Results confirm that the introduction of online social network use for internal and external cognitive processes positively affects innovation performance. This study highlights the potential as well as the limitations of online social networks and organizational learning capability in promoting innovation capability. Businesses must consciously manage the assimilation and use of online social networks to benefit from them.
Factors for Elderly Use of Social Media for Health‐Related Activities
Authors: Parida Vinit , Mostaghel Rana , Oghazi Pejvak 
Published: November 2016

ABSTRACTElderly individuals are increasingly using social media sites to access health‐related information. Using responses from 610 elderly individuals in Sweden to a large‐scale questionnaire survey, this study examines technology acceptance model and sociodemographic factors that positively influence elderly individuals’ use of social media for health‐related activities. The results show evidence of a positive association between general technology use experience, attitudes toward technology use, age, or gender, and the use of social media for health‐related activities. Technology attitudes strengthen the effect on social media use for health‐related activities regarding general use of technology, for older individuals, and among females.
Exploring How Video Digital Storytelling Builds Relationship Experiences
Authors: Pera Rebecca , Viglia Giampaolo 
Published: November 2016

ABSTRACTThe purpose of the paper is to explore how digital storytelling enables a consumer relationship experience in online peer‐to‐peer communities. Within the value cocreation framework, digital storytelling is interpreted as an encounter communication practice where consumers adopt the role of storytellers and story receivers. This study adopts a qualitative multimethod approach to investigate the meanings contained in video stories and the linkage to relationship experience. A case study based on the Airbnb's social platforms was analyzed through the degrees‐of‐freedom analysis instrument (DFA) and through a systematic dimensional qualitative research called BASIC IDS (an acronym for behavior, affect, sensation, imagery, cognition, interpersonal relations, drugs, and sociocultural factors) to yield psychological valuable insights into the multidimensional construct of consumer relationship experience. The analysis unveils that, within the social media realm, storytelling enables rational, emotional, and relationship experiences. A relationship experience occurs when members of peer‐to‐peer communities, not only are rationally and emotionally engaged by the story, but are also moved to action going beyond a vicarious role‐taking process. Specifically, relatability, a shared sociocultural background, and the drug dimension conceptualize the consumer relationship experience. Implications build on the need for companies to enhance the power of stories through favoring consumers’ video making and integrating consumers’ flow of stories between multiple social media platforms.
Online Customer Service Reviews in Urban Hotels: A Data Mining Approach
Authors: Sánchez‐Franco Manuel J. , Navarro‐García Antonio , Rondán‐Cataluña Francisco J. 
Published: November 2016

ABSTRACTThis study proposes a product feature‐oriented approach to the analysis of online guests’ reviews, and it analyzes the relationship between the most salient features and guests’ hotel rating in the online travel agencies environment. In particular, this research means to address the following research question: How can this understanding of these features help us to design desirable urban hotel experiences that guests really assess? This research employs a sample of 829 Spanish urban hotels and 19,318 reviews. These data, by extracting attributes that are mentioned differently by males or females, reveal the moderating role of gender on the influence of the main dimensions of hospitality services on hotel ratings.
Consumer Involvement in New Product Development: A Case Study from the Online Virtual Community
Authors: Xie Xuemei , Jia Yaoyang 
Published: November 2016

ABSTRACTIn current dynamic networking era, firms face more pressure, such as increasing market competition, the shortening product development cycle, and consumers’ diverse needs. In the social media context, the emergence of online community provides a platform for consumer involvement in firms’ new product development (NPD). Accordingly, working with consumers via online community has become increasingly important to the development of new products and the improvement of firms’ innovativeness. This paper aims to explore the motivations for consumer involvement in firms’ NPD via online community and to examine the relationships between different combinations of motivations and NPD using the method of fuzzy set quality comparative analysis (fsQCA). The motivations for consumer involvement in firms’ NPD identified by the grounded theory method are as follows: (1) consumers’ needs, (2) compensation, (3) personal interest, (4) an open and flexible online community network, and (5) firms’ trustworthiness. In this study, the authors collect data through the MIUI community (the online community network of Xiaomi, a high‐tech company). The findings reveal a close link between the NPD performance of firms and the motivations for consumer involvement. The findings also have implications for practitioners concerned with the management of consumer resources.
A model‐based process to improve robustness in Multicriteria Decision Aiding interventions
Authors: Norese Maria Franca 
Published: November 2016

AbstractA model‐based process is a methodological approach that facilitates interventions in new and ill or not structured problem situations. It is oriented towards improving the robustness of the intervention and its results in an incremental definition of both the problem formulation and the model, in order to reduce the uncertainty that is not only associated with the model parameters but also with the model structure, and sometimes also with the problem formulation. The nature and results of this approach, which consider the interaction between an analyst and the actors of the decision system as the decision aiding core, are proposed in relation to some actual interventions.
Arginase Inhibitors: A Rational Approach Over One Century
Authors: Pudlo Marc , Demougeot Céline , Girard‐Thernier Corine 
Published: November 2016

AbstractArginase (EC 3.5.3.1) is the bimanganese enzyme that converts L‐arginine into ornithine and urea. This enzyme was discovered more than a century ago and early α‐amino acids were identified as weak inhibitors. It was only during the 90s, after nitric oxide (NO) was reported as one of the most important biological mediators and when tight interrelation of arginase and NO synthase was found, that the development of arginase inhibitors was accelerated. The regulation of arginase activity by the N‐hydroxy‐L‐arginine (3, NOHA) intermediate of the NO synthesis was the starting point of the N‐hydroxy‐nor‐arginine (21, nor‐NOHA) that proved to be the first micromolar inhibitor. The previously known manganese and arginase binding by borate inspired the 2(S)‐amino‐6‐boronohexanoic acid (39, ABH) and S‐(2‐boronoethyl)‐L‐cysteine (40, BEC) now both considered as reference compounds in arginase inhibition. The high‐resolution crystal structure of arginase and molecular modeling has rendered possible the recent design of (53) the strongest α,α‐disubstituted derivatives of ABH. Simultaneously, traditional medicinal plants have contributed as a source of molecular diversity to the discovery of arginase inhibitors. This rational, step‐by‐step approach serves as guide in the present review where emphasis is placed on structure activity relationships.Highlights

exhaustive review on arginase inhibitors
highlight is made on rational approach to conception and structure activity relationships
evaluation model is systematically mentioned with results.
Stability of a transmission problem for Kirchhoff‐type wave equations with memory on the boundary
Authors: Park Sun‐Hye 
Published: November 2016

In this paper, we investigate the influence of boundary dissipation on the decay property of solutions for a transmission problem of Kirchhoff‐type wave equations with a memory condition on one part of the boundary. Without the condition u0 = 0 on Γ0, we establish a general decay of energy depending on the behavior of relaxation function by introducing suitable energy and Lyapunov functionals. This result allows a wider class of relaxation functions. Copyright © 2016 John Wiley & Sons, Ltd.
α‐trideuteromethyl[15N]glutamine: A long‐lived hyperpolarized perfusion marker
Authors: Durst Markus , Chiavazza Enrico , Haase Axel , Aime Silvio , Schwaiger Markus , Schulte Rolf F. 
Published: November 2016

PurposeWe characterized the performance of a novel hyperpolarized perfusion marker, α‐trideuteromethyl[15N]glutamine, for direct comparison with a 13C‐based hyperpolarized perfusion marker, [13C, 15N2]urea.MethodsA hardware platform and pulse sequence for in vivo 15N experiments were established. Hyperpolarized solutions of α‐trideuteromethyl[15N]glutamine and [13C, 15N2]urea were injected into healthy male Lewis rats. Kidney slice images were acquired using a single‐shot spiral readout. Both compounds were compared to determine in vivo signal lifetime and tracer distribution. Mass spectrometry was performed to evaluate excretion of the compound.ResultsCompared with 13C‐labeled urea, a significantly increased signal lifetime was observed. While the urea signal was gone after 90 s, decay of the glutamine compound was sufficiently slow to obtain a quantifiable signal, even after 5 min. The glutamine derivative showed strong localization in the kidneys with little background signal. Effective T1 of α‐trideuteromethyl[15N]glutamine was approximately eight‐fold higher than that of urea. Mass spectrometry results confirmed rapid excretion within the time scale of the measurement.ConclusionHyperpolarized α‐trideuteromethyl[15N]glutamine is a highly promising candidate for renal studies because of its long signal lifetime, strong localization and rapid excretion. Magn Reson Med 76:1900–1904, 2016. © 2016 International Society for Magnetic Resonance in Medicine
Muscle fiber type proportion and size is not altered in mcardle disease
Authors: Henning Franclo , Cunninghame Carol Anne , Martín Miguel Angel , Rubio Juan Carlos , Arenas Joaquín , Lucia Alejandro , HernáNdez‐Laín Aurelio , Kohn Tertius Abraham 
Published: November 2016

ABSTRACTIntroductionMcArdle disease is a metabolic myopathy that presents with exercise intolerance and episodic rhabdomyolysis. Excessive muscle recruitment has also been shown to be present during strenuous exercise, suggesting decreased power output. These findings could potentially be explained by either impaired contractility, decreased fiber size, or altered fiber type proportion. However, there is a paucity of data on the morphological features seen on muscle histology.MethodsWe examined muscle biopsies of patients with McArdle disease from a Spanish cohort and compared the findings with healthy controls.ResultsWe found no significant difference in the fiber type proportion or mean fiber size between McArdle patients and controls in the biceps brachii or vastus lateralis muscles.ConclusionsNo alterations in muscle fiber type proportion or size were found on muscle histology of patients with McArdle disease. Future research should focus on assessment of muscle fiber contractility to investigate the functional impairment. Muscle Nerve 55: 916–918, 2017
Prenatal myelomeningocele repair: Do bladders better?
Authors: Horst Maya , Mazzone Luca , Schraner Thomas , Bodmer Christine , Möhrlen Ueli , Meuli Martin , Gobet Rita 
Published: November 2016

AimsPrenatal myelomeningocele (MMC) repair has been proven to significantly reduce the need for hydrocephalus shunting and improve lower‐extremity motor outcomes. The aim of this study was to evaluate the effect of prenatal MMC repair on the urological outcome.MethodsAll patients who underwent fetal MMC repair at our institution are followed prospectively. Assessments include medical history, renal and bladder ultrasound, voiding cystourethrogram and urodynamic study, need for clean intermittent catheterization (CIC) and anticholinergics, and the occurrence of urinary tract infections (UTI).ResultsOf the 30 patients who underwent prenatal MMC closure from December 2010 to December 2015, eight patients with a postnatal follow‐up of at least 2 years were included in this study and compared with eight patients after postnatal MMC repair. The level of the bony spinal defect was similar in both groups. Urological evaluation at 2 years revealed normal bladder function in 50% after prenatal repair. Neurogenic bladder dysfunction requiring CIC and anticholinergic therapy was seen in 50% in the prenatal and in 100% in the postnatal group. Significant bladder wall thickening was found in 37.5% and 87.5%, respectively. Febrile UTIs occurred in 37.5% in the prenatal and 62.5% in the postnatal group during the observation period.ConclusionsOur data suggest a positive effect of prenatal MMC closure on lower urinary tract function. The long‐term significance of these results remains unclear. Therefore, continued close monitoring of renal and bladder function are mandatory.
In vivo estimation of gamma‐aminobutyric acid levels in the neonatal brain
Authors: Tomiyasu Moyoko , Aida Noriko , Shibasaki Jun , Umeda Masahiro , Murata Katsutoshi , Heberlein Keith , Brown Mark A. , Shimizu Eiji , Tsuji Hiroshi , Obata Takayuki 
Published: November 2016

AbstractGamma‐aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the brain, and plays a key role in brain development. However, the in vivo levels of brain GABA in early life are unknown. Using edited MRS, in vivo GABA can be detected as GABA+ signal with contamination of macromolecule signals. GABA+ is evaluated as the peak ratio of GABA+/reference compound, for which creatine (Cr) or water is typically used. However, the concentrations and T1 and T2 relaxation times of these references change during development. Thus, the peak ratio comparison between neonates and children may be inaccurate. The aim of this study was to measure in vivo neonatal brain GABA+ levels, and to investigate the dependency of GABA levels on brain region and age. The basal ganglia and cerebellum of 38 neonates and 12 children were measured using GABA‐edited MRS. Two different approaches were used to obtain GABA+ levels: (i) multiplying the GABA/water ratio by the water concentration; and (ii) multiplying the GABA+/Cr by the Cr concentration. Neonates exhibited significantly lower GABA+ levels compared with children in both regions, regardless of the approach employed, consistent with previous ex vivo data. A similar finding of lower GABA+/water and GABA+/Cr in neonates compared with children was observed, except for GABA+/Cr in the cerebellum. This contrasting finding resulted from significantly lower Cr concentrations in the neonate cerebellum, which were approximately 52% of those of children. In conclusion, care should be taken to consider Cr concentrations when comparing GABA+/Cr levels between different‐aged subjects.
Reducing Stroke Risk Among Young Adult African Americans: A Feasibility Study
Authors: Aycock Dawn M. , Clark Patricia C. , Hayat Matthew J. 
Published: November 2016

AbstractAfrican Americans are disproportionately affected by stroke and its modifiable risk factors, and strategies are needed to help African Americans adopt healthy lifestyles early in life. The purpose of this study was to assess the feasibility of the Stroke Counseling for Risk Reduction (SCORRE) intervention, a tailored, theory‐based intervention consisting of a motivational video of young African American stroke survivors, the American Heart Association's Life's Simple 7® (LS7) risk assessment and education tool, and a 6‐week behavioral risk reduction diary. Feasibility and changes in theoretical variables were evaluated over 6 weeks. In four months, 30 participants were enrolled and randomized and 29 (97%) completed the study. Participants averaged 23 years old, most were female university students, and they had an average of 2.1 out of 7 risk factors for stroke. Only 7% had missing items on questionnaires, and 17% had missing daily diary entries. Although statistical significance of differences was not assessed, both intervention and control groups had improvements in knowledge scores following the initial session, and larger improvements in accuracy of perceived stroke risk and in health behaviors (physical activity and diet quality) were observed among participants receiving SCORRE. An exit survey indicated the majority of participants receiving SCORRE were motivated to achieve better health; enjoyed the video, LS7 and diary; and felt the program length was appropriate. Results suggest that SCORRE is feasible and acceptable, and with additional refinement and further testing has potential for reducing stroke risk among African Americans. © 2016 Wiley Periodicals, Inc.