bluuebunny/crossref_metadata_2025 huggingface dataset:
Formes brèves et mise en prose
Authors: Cifarelli Paola
Published: April 2018

Cet article examine les rapports entre le Dit de l’Herberie de Rutebeuf et une version anonyme entièrement en prose, transmise par le ms Paris, BnF, fr. 19152; ce texte contient des vestiges de vers dans des séquences correspondant à la section en vers du poète champenois, mais également des ébauches de versification dans les parties qui sont en symétrie avec la portion de texte que Rutebeuf a composée en prose.

Dans ces deux petits dits, qui traitent un sujet à la fois comique et sérieux, la rencontre entre vers et prose, par juxtaposition ou par fusion, permettrait de faire réagir le texte par une sorte d’alchimie de l’écriture: l’intégration des deux modes du discours littéraire confère aux monologues une forte empreinte poétique destinée à donner un éclat nouveau au langage ordinaire, mais elle a aussi comme effet de dissoudre dans la prose la suspicion de mensonge qui pèse sur le je narratif et auquel l’auteur s’identifie implicitement. Ce jeu sur la forme, loin d’avoir une valeur purement esthétique, répercute ses effets sur le sens et rend possible l’expression d’une parole ironique.
“In dorso colorem habet inter viridem et ceruleum…”
Authors: Cipriani Mattia
Published: April 2018

Like other contemporary encyclopaedists of his time, Thomas of Cantimpré (1200 ca.–1270/72) used a vast
number of sources in his Liber de natura rerum (completed between 1241 and 1260 ca.), which he meticulously
selected to copy, cut and ‘paste’ in order to create a solid, well-argued, coherent and ‘Dominican’ discourse on nature. Among
these auctoritates, the friar also uses a mysterious and anonymous libellum, which he qualifies
as “liber rerum,” in his work. Consequently, the paper explains this auctoritas through a careful consideration
of all the objective aspects that can be acquired from the Liber de natura rerum. Secondly, the work shows how
the anonymous source was Thomas’ privileged vehicle through which to introduce in his encyclopaedia ‘alternative’ information
borrowed from non-canonical sources (direct observations, personal experiences, etc.). The analysis therefore identifies the
particular textual typology of the anonymous libellum, while also demonstrating how the friar of Cantimpré was a
curious and actual auctor on nature, observing everyday reality directly and thereby
distinguishing himself from his contemporary compilatores.
L’escargot dans les encyclopédies médiévales
Authors: de Valeriola Sébastien
Published: April 2018

Au cours du Moyen Âge, une double évolution linguistique se produit. D’une part, le mot
testudo, qui désigne la tortue en latin classique, change de sens et en vient à signifier “escargot”.
D’autre part, le terme tortuca fait son apparition: il prend la place de testudo et est
utilisé pour désigner le reptile chélonien. Il résulte de ces transformations une confusion dont l’impact est
particulièrement visible dans les encyclopédies du milieu et de la fin du Moyen Âge, notamment parce que la réutilisation de
renseignements fournis par des auteurs considérés comme des autorités (et ayant écrit avant que le glissement sémantique ne se
produise) est fréquente dans les ouvrages de ce genre. Le sens que donnent ces encyclopédistes au mot testudo est
différent de celui que lui associent leurs sources, ce qui cause une confusion parfois inextricable. Dans cet article, nous
passons en revue les notices et les illustrations de quelques ouvrages didactiques, et tentons d’évaluer
l’importance de l’imbroglio causé par cette évolution sémantique.
Steady state, relaxation and first-passage properties of a run-and-tumble particle in one-dimension
Authors: Malakar Kanaya , Jemseena V , Kundu Anupam , Vijay Kumar K , Sabhapandit Sanjib , Majumdar Satya N , Redner S , Dhar Abhishek
Published: April 2018

We investigate the motion of a run-and-tumble particle (RTP) in one dimension. We find the exact probability distribution of the particle with and without diffusion on the infinite line, as well as in a finite interval. In the infinite domain, this probability distribution approaches a Gaussian form in the long-time limit, as in the case of a regular Brownian particle. At intermediate times, this distribution exhibits unexpected multi-modal forms. In a finite domain, the probability distribution reaches a steady-state form with peaks at the boundaries, in contrast to a Brownian particle. We also study the relaxation to the steady-state analytically. Finally we compute the survival probability of the RTP in a semi-infinite domain with an absorbing boundary condition at the origin. In the finite interval, we compute the exit probability and the associated exit times. We provide numerical verification of our analytical results.
1. Rome
Authors: Weir David
Published: April 2018

Ancient Roman writers whose work inspired latter-day decadents include the biographer Suetonius (69–122 CE) and the historian Tacitus (56–120 CE), who both wrote about the depraved behavior of Caligula, Nero, Vitellius, and other decadent emperors. Their accounts of outrageous behavior, as well as The Satyricon (an important novel about first-century Rome attributed to Petronius), form the classical model of Roman decadence. Later influential commentators on the fall of Rome were the French moral philosopher Montesquieu (1689–1755) and the British historian Edward Gibbon (1737–1794). Historical novels about ancient Rome by Gustave Flaubert (1821–1880) and Walter Pater (1839–1894) also had a bearing on the development of decadence.
3. London
Authors: Weir David
Published: April 2018

Decadence in Great Britain takes form in the late nineteenth century as both a reflection of and reaction to the urban plan of its capital city. London decadence has this in common with Parisian decadence, but with several significant differences, such as the British preference for neo-Gothic architecture and the contrasting allocation of urban space to variations in social class. The work of John Ruskin affirms the neo-Gothic aesthetic, while that of Walter Pater emerges as a decadent rejection of it. Later, the work of George Moore, Arthur Symons, Oscar Wilde, and Ernest Dowson certified London decadence as a culture antagonistic to bourgeois tastes and manners.
6. Equality
Authors: Bodenhamer David J.
Published: April 2018

Equality was not an explicit core value of the Constitution, nor was it a basic condition of republican governments. The framers, living in a world based on class distinctions, rejected hereditary aristocracy, but casually accepted the idea of a natural aristocracy based on merit. Political equality was an animating force of the Revolution, although this condition applied primarily to white, property-owning men. ‘Equality’ outlines the three Amendments adopted between 1865 and 1870 that ended slavery, made state citizenship a consequence of national citizenship, and designated African-American men as political equals. It also describes the women’s movement of the 1920s, the aftermath of World War II, and the civil rights movement of the 1960s.
The National Sleep Research Resource: towards a sleep data commons
Authors: Zhang Guo-Qiang , Cui Licong , Mueller Remo , Tao Shiqiang , Kim Matthew , Rueschman Michael , Mariani Sara , Mobley Daniel , Redline Susan
Published: April 2018

Objective

The gold standard for diagnosing sleep disorders is polysomnography, which generates extensive data about biophysical changes occurring during sleep. We developed the National Sleep Research Resource (NSRR), a comprehensive system for sharing sleep data. The NSRR embodies elements of a data commons aimed at accelerating research to address critical questions about the impact of sleep disorders on important health outcomes.

Approach

We used a metadata-guided approach, with a set of common sleep-specific terms enforcing uniform semantic interpretation of data elements across three main components: (1) annotated datasets; (2) user interfaces for accessing data; and (3) computational tools for the analysis of polysomnography recordings. We incorporated the process for managing dataset-specific data use agreements, evidence of Institutional Review Board review, and the corresponding access control in the NSRR web portal. The metadata-guided approach facilitates structural and semantic interoperability, ultimately leading to enhanced data reusability and scientific rigor.

Results

The authors curated and deposited retrospective data from 10 large, NIH-funded sleep cohort studies, including several from the Trans-Omics for Precision Medicine (TOPMed) program, into the NSRR. The NSRR currently contains data on 26 808 subjects and 31 166 signal files in European Data Format. Launched in April 2014, over 3000 registered users have downloaded over 130 terabytes of data.

Conclusions

The NSRR offers a use case and an example for creating a full-fledged data commons. It provides a single point of access to analysis-ready physiological signals from polysomnography obtained from multiple sources, and a wide variety of clinical data to facilitate sleep research.
Breast Cancer Characteristics in Middle Eastern Women Immigrants Compared With Non-Hispanic White Women in California
Authors: Ziadeh Clara , Ziogas Argyrios , Jiang Luohua , Anton-Culver Hoda
Published: April 2018

Background

Emerging evidence has indicated that Middle Eastern (ME) immigrants might be more likely to be diagnosed with breast cancer at advanced stage, yet have better overall survival than nonimmigrant non-Hispanic whites (NHW). This study aims to analyze the association between ME immigration status and breast cancer stage at diagnosis and survival.

Methods

Using the California Cancer Registry, a total of 343 876 women diagnosed with primary in situ or invasive breast cancers were identified during 1988–2013. Multinomial logistic regression models were fitted to evaluate the risk of in situ and nonlocalized breast cancer stage in comparison with localized breast cancer among first-generation ME immigrants, second- or subsequent-generation ME immigrants, and NHW. Cox proportional hazard models were applied to calculate hazard ratios (HRs) with their 95% confidence intervals (CIs) for breast cancer mortality among the three population groups with invasive primary breast cancer.

Results

First-generation ME immigrants had higher odds of being diagnosed with a nonlocalized stage (vs localized) than NHW (odds ratio [OR] = 1.17, 95% CI = 1.09 to 1.26). Second- or subsequent-generation ME immigrants also had higher odds of being diagnosed with a nonlocalized stage (vs localized) than NHW (OR = 1.31, 95% CI = 1.20 to 1.43). First-generation ME immigrants were 11% less likely to die from breast cancer than NHW (HR = 0.89, 95% CI = 0.82 to 0.97).

Conclusions

First-generation ME immigrants had higher breast cancer survival despite being diagnosed at a nonlocalized breast cancer stage at diagnosis when compared with NHW. Screening interventions tailored to this ME immigrant group need to be implemented.
The Origins and Dynamics of Export Superstars
Authors: Freund Caroline , Pierola Martha Denisse
Published: April 2018

Export superstars are important for export growth and diversification and are typically born large. Firm-level data on manufacturing trade from 32 developing countries show that the top five exporters account for on average nearly one-third of exports, 47 percent of export growth, and a third of the growth due to export diversification over a five-year period. Within countries and industries, export growth is positively correlated with the share of exports in the top five firms. Most of the top five exporters were already large five (or eight) years ago or are new firms; it is rare for these export superstars to emerge from the bottom half of the distribution of firm sizes. For countries where detailed data exist, superstars are producers, not traders, and are primarily foreign owned.
Concentration–response functions for short-term exposure and air pollution health effects
Authors: Szyszkowicz Mieczysław
Published: April 2018

In this work, we propose to use a new class of variable coefficient risk functions to represent the health effects of short-term exposure to air pollution. The presented concentration–response functions can adapt many forms of potentially nonlinear associations. These functions are suitable to more accurately represent risk in health impact assessments. The concentrations of air pollutants are transformed by a linear or a logarithmic function of concentrations multiplied by a logistic weighting function. A minimization process for nonlinear functions is applied to determine the model parameters. The proposed methodology is illustrated using four databases; among them are the Milan mortality (Italy) and the Chicago mortality (USA) databases. The results indicate the adequacy and reliability of the proposed methodology.
The crosstalk between hematopoietic stem cells and their niches
Authors: Durand Charles , Charbord Pierre , Jaffredo Thierry
Published: April 2018

Purpose of review

Hematopoietic stem cells (HSCs) reside in specific microenvironments also called niches that regulate HSC functions. Understanding the molecular and cellular mechanisms involved in the crosstalk between HSCs and niche cells is a major issue in stem cell biology and regenerative medicine. The purpose of this review is to discuss recent advances in this field with particular emphasis on the transcriptional landscape of HSC niche cells and the roles of extracellular vesicles (EVs) in the dialog between HSCs and their microenvironments.

Recent findings

The development of high-throughput technologies combined with computational methods has considerably improved our knowledge on the molecular identity of HSC niche cells. Accumulating evidence strongly suggest that the dialog between HSCs and their niches is bidirectional and that EVs play an important role in this process.

These advances bring a unique conceptual and methodological framework for understanding the molecular complexity of the HSC niche and identifying novel HSC regulators. They are also promising for exploring the reciprocal influence of HSCs on niche cells and delivering specific molecules to HSCs in regenerative medicine.
The Potential Diagnostic Accuracy of Autopsy Lung Weights, Lung-Heart Ratio, and Lung-Body Ratio in Drowning Deaths
Authors: Tse Rexson , Garland Jack , Kesha Kilak , Morrow Paul , Lam Leo , Elstub Hannah , Cala Allan , Spark Amy , Palmiere Cristian , Stables Simon
Published: April 2018

Lung weights are often increased in drowning deaths as well as in other types of deaths. Lung weights may also vary with age, sex, and body weight. A variety of methods have been proposed to utilize lung weight data to assist with the diagnosis of drowning. The present study compared lung weight, lung-heart ratio (LH), and lung-body ratio (LB) between 50 consecutive drowning and 50 nonimmersion deaths in order to assess the accuracy in diagnosing drowning. Analysis revealed both LH and LB to be statistically higher in drowning deaths (P < 0.05), with LB being the most robust measurement. However, the overall diagnostic accuracies of lung weight, LH, and LB were poor to fair, and should therefore be used only in conjunction with the other diagnostic criteria.
Facebook Facts: Breast Reconstruction Patient-Reported Outcomes Using Social Media
Authors: Tang Sherry Y. Q. , Israel Jacqueline S. , Poore Samuel O. , Afifi Ahmed M.
Published: April 2018

Background:

Social media are used for information sharing among patients with similar health conditions, and analysis of social media activity could inform clinical decision-making. The aim of this study was to use Facebook to evaluate a cohort of individuals’ perceptions of and satisfaction with breast reconstruction.

Methods:

In this observational study, the authors collected and analyzed posts pertaining to autologous and implant-based breast reconstruction from active Facebook groups. Patient satisfaction data were categorized, and a thematic analysis of posts was conducted. Qualitative posts were grouped based on common themes and quantitatively compared using frequency and chi-square analysis.

Results:

The authors evaluated 500 posts from two Facebook groups. Two hundred sixty-four posts referenced deep inferior epigastric perforator (DIEP) flap reconstruction and 117 were related to implant-based reconstruction. Among individuals referencing DIEP flap reconstruction, 52 percent were satisfied, compared with 20 percent of individuals who referenced satisfaction with implant-based reconstruction (p < 0.0001). Individuals posting about DIEP flaps reported a higher rate of unexpected side effects (p < 0.001) and numbness (p = 0.004). When referencing implant-based reconstruction, individuals reported significantly higher rates of infection, contracture, and implant failure (p < 0.001).

Conclusions:

Based on the authors’ review of social media activity, individuals undergoing DIEP flap breast reconstruction expressed relatively high individual satisfaction despite difficult postoperative recovery. Individuals who referenced implant-based reconstruction mentioned infection and implant failure, leading to high rates of dissatisfaction. Social media appear to provide informational and emotional support to patients. Plastic surgeons can use social media to gather unbiased information of patients’ experience to inform clinical conversation and guide clinical practice.
Facial Fractures: Pearls and Perspectives
Authors: Chaudhry Obaid , Isakson Matthew , Franklin Adam , Maqusi Suhair , El Amm Christian
Published: April 2018

Learning Objectives:

After studying this article, the participant should be able to: 1. Describe the A-frame configuration of anterior facial buttresses, recognize the importance of restoring anterior projection in frontal sinus fractures, and describe an alternative design and donor site of pericranial flaps in frontal sinus fractures. 2. Describe the symptoms and cause of pseudo-Brown syndrome, describe the anatomy and placement of a buttress-spanning plate in nasoorbitoethmoid fractures, and identify appropriate nasal support alternatives for nasoorbitoethmoid fractures. 3. Describe the benefits and disadvantages of different lower lid approaches to the orbital floor and inferior rim, identify late exophthalmos as a complication of reconstructing the orbital floor with nonporous alloplast, and select implant type and size for correction of secondary enophthalmos. 4. Describe closed reduction of low-energy zygomatic body fractures with the Gillies approach and identify situations where internal fixation may be unnecessary, identify situations where plating the inferior orbital rim may be avoided, and select fixation points for osteosynthesis of uncomplicated displaced zygomatic fractures. 5. Understand indications and complications of use for intermaxillary screw systems, understand sequencing panfacial fractures, describe the sulcular approach to mandible fractures, and describe principles and techniques of facial reconstruction after self-inflicted firearm injuries.

Treating patients with facial trauma remains a core component of plastic surgery and a significant part of the value of a plastic surgeon to a health system.
Human Cytomegalovirus Immediate-Early 1 Protein Causes Loss of SOX2 from Neural Progenitor Cells by Trapping Unphosphorylated STAT3 in the Nucleus
Authors: Wu Cong-Cong , Jiang Xuan , Wang Xian-Zhang , Liu Xi-Juan , Li Xiao-Jun , Yang Bo , Ye Han-Qing , Harwardt Thomas , Jiang Man , Xia Hui-Min , Wang Wei , Britt William J. , Paulus Christina , Nevels Michael , Luo Min-Hua
Published: April 2018

The mechanisms underlying neurodevelopmental damage caused by virus infections remain poorly defined. Congenital human cytomegalovirus (HCMV) infection is the leading cause of fetal brain development disorders. Previous work has linked HCMV to perturbations of neural cell fate, including premature differentiation of neural progenitor cells (NPCs). Here we show that HCMV infection of NPCs results in the loss of the SOX2 protein, a key pluripotency-associated transcription factor. SOX2 depletion maps to the HCMV major immediate-early (IE) transcription unit and is individually mediated by the IE1 and IE2 proteins. IE1 causes SOX2 down-regulation by promoting the nuclear accumulation and inhibiting the phosphorylation of STAT3, a transcriptional activator of SOX2 expression. Deranged signaling resulting in depletion of a critical stem cell protein is an unanticipated mechanism by which the viral major IE proteins may contribute to brain development disorders caused by congenital HCMV infection.

IMPORTANCE

Human cytomegalovirus (HCMV) infections are a leading cause of brain damage, hearing loss and other neurological disabilities in children. We report that the HCMV proteins known as IE1 and IE2 target expression of human SOX2, a central pluripotency-associated transcription factor that governs neural progenitor cell (NPC) fate and is required for normal brain development. Both during HCMV infection and when expressed alone, IE1 causes the loss of SOX2 from NPCs. IE1 mediates SOX2 depletion by targeting STAT3, a critical upstream regulator of SOX2 expression. Our findings reveal an unanticipated mechanism by which a common virus may cause damage to the developing nervous system and suggest novel targets for medical intervention.
MLL1 minimal catalytic complex is a dynamic conformational ensemble susceptible to pharmacological allosteric disruption
Authors: Kaustov Lilia , Lemak Alexander , Wu Hong , Faini Marco , Houliston Scott , Fan Lixin , Fang Xianyang , Zeng Hong , Duan Shili , Allali-Hassani Abdellah , Vedadi Masoud , Aebersold Ruedi , Wang Yunxing , Arrowsmith Cheryl H.
Published: April 2018

Histone H3K4 methylation is an epigenetic mark associated with actively transcribed genes. This modification is catalyzed by the mixed lineage leukaemia (MLL) family of histone methyltransferases including MLL1, MLL2, MLL3, MLL4, SET1A and SET1B. Catalytic activity of MLL proteins is dependent on interactions with additional conserved proteins but the structural basis for subunit assembly and the mechanism of regulation is not well understood. We used a hybrid methods approach to study the assembly and biochemical function of the minimally active MLL1 complex (MLL1, WDR5 and RbBP5). A combination of small angle X-ray scattering (SAXS), cross-linking mass spectrometry (XL-MS), NMR spectroscopy, and computational modeling were used to generate a dynamic ensemble model in which subunits are assembled via multiple weak interaction sites. We identified a new interaction site between the MLL1 SET domain and the WD40 repeat domain of RbBP5, and demonstrate the susceptibility of the catalytic function of the complex to disruption of individual interaction sites.
KCH kinesin drives nuclear transport and cytoskeletal coalescence for tip cell growth
Authors: Yamada Moé , Goshima Gohta
Published: April 2018

Long-distance transport along microtubules (MTs) is critical for intracellular organisation. In animals, antagonistic motor proteins kinesin (plus end-directed) and dynein (minus end-directed) drive cargo transport. In land plants, however, the identity of motors responsible for transport is poorly understood, as genes encoding cytoplasmic dynein are missing. How other functions of dynein are brought about in plants also remains unknown. Here, we show that a subclass of the kinesin-14 family, KCH—which can also bind actin—drives MT minus end-directed nuclear transport in the mossPhyscomitrella patens. When all four KCH genes were deleted, the nucleus was not maintained in the cell centre but was translocated to the apical end of protonemal cells. In the knockout (KO) line, apical cell tip growth was also severely suppressed. KCH was localised on MTs, including at the MT focal point near the tip where MT plus ends coalesced with actin filaments. MT focus was not persistent inKCHKO lines, whereas actin destabilisation also disrupted the focus despite KCH remaining on unfocused MTs. Functions of nuclear transport and tip growth were distinct, as a truncated KCH construct restored nuclear transport activity but not tip growth retardation of the KO line. Thus, our study identified KCH as a long-distance retrograde transporter as well as a cytoskeletal crosslinker, reminiscent of the versatile animal dynein.
Mitochondrial ubiquinone-mediated longevity is marked by reduced cytoplasmic protein translation
Authors: Molenaars Marte , Janssens Georges E. , Santermans Toon , Lezzerini Marco , Jelier Rob , MacInnes Alyson W. , Houtkooper Riekelt H.
Published: April 2018

Mutations in theclk-1gene impair mitochondrial ubiquinone biosynthesis and extend the lifespan ofC. elegans.We demonstrate here that this life extension is linked to the repression of cytoplasmic protein translation.Clk-1mutations inhibit polyribosome formation similarly todaf-2mutations that dampen insulin signaling. Comparisons of total versus polysomal RNAs inclk-1mutants reveal a reduction in the translational efficiencies of mRNAs coding for elements of the translation machinery and an increase in those coding for the oxidative phosphorylation and autophagy pathways. Knocking down the transcription initiation factor TAF-4, a protein that becomes sequestered in the cytoplasm during early embryogenesis to induce transcriptional silencing, ameliorates theclk-1inhibition of polyribosome formation. These results underscore a prominent role for the repression of cytoplasmic protein translation in eukaryotic lifespan extension, and suggest that mutations impairing mitochondrial function are able to exploit this repression similarly to reductions of insulin signaling. Moreover, this report reveals an unexpected role for TAF-4 as a repressor of polyribosome formation when ubiquinone biosynthesis is compromised.
The Identification Of Cortical Pyramidal Neurons Using A Rpp Based Algorithm
Authors: Kolezeva Yelena
Published: April 2018

Appropriately classifying neuronal subgroups is critical to numerous downstream procedures in several disciplines of biomedical research. The cortical pyramidal neuron characterization technology has achieved rapid development in recent years. However, capturing true neuronal features for accurate pyramidal neuron characterization and segmentation has remained elusive. In the current study, a novel global preserving estimate algorithm is used to capture the non-linearity in the features of cortical pyramidal neuron after Factor Algorithm. Our results provide evidence for the effective integration of the original linear and nonlinear neuronal features and achieves better characterization performance on multiple cortical pyramidal neuron databases through array matching.
Wanting to change the world, is it too much of a good thing? How sustainable orientation shapes entrepreneurial behaviour
Authors: St-Jean Etienne , Labelle François
Published: April 2018

Purpose

When pursuing a sustainable orientation (SO), entrepreneurs can resolve environmental and social problems and act as change agents by pursuing opportunities related to market failures. While many studies focus on entrepreneurial intention, very few try to explain entrepreneurial behaviour. The purpose of this paper is to highlight the circumstances under which people could be led to become sustainable entrepreneurs. It examines the effect of SO, as well as the entrepreneurial motivation to change society as key drivers of entrepreneurial behaviour.

Design/methodology/approach

The hypotheses were tested in three waves (six-month interval) on a sample of 197 university students that are neither entrepreneurs, nor involved in any entrepreneurial processes. The authors measured entrepreneurial behaviour as a dependent variable and used subjective norms towards entrepreneurship, entrepreneurial self-efficacy, entrepreneurial attitude as well as entrepreneurial motivation and SO as independent variables.

Findings

Contrary to the expectations, sustainability orientation has a negative impact on entrepreneurial action. However, individuals who think that entrepreneurship can change society (instrumentality) exhibit higher entrepreneurial action. Furthermore, this belief positively moderates the negative impact of SO on entrepreneurial action. In other words, if someone thinks that entrepreneurship can change the world, not only he/she is more inclined to engage in entrepreneurial actions but their values of SO will not decrease their entrepreneurial action.

Research limitations/implications

A longer timeframe of longitudinal research is needed to overcome the limitation regarding the assessment of entrepreneurial action.

Practical implications

As a practical implication, educators who want to engage their institution as an engine of change towards sustainable development could highlight cases of sustainable businesses where profits, environmental and social issues were not neglected to improve the perceived feasibility and thus, entrepreneurial action.

Originality/value

Results demonstrate the negative effect of SO on entrepreneurship as a career choice, but not for those who believe that they can change society through this mean. This research highlights the relevance of Socio Cognitive Career Theory in the field of entrepreneurship, especially the neglected effect of outcome expectations on entrepreneurship as a career choice.
Collaborative consumption: the role of familiarity and trust among Millennials
Authors: Mittendorf Christoph
Published: April 2018

Purpose

This paper aims to focus on online hospitality platforms in the collaborative consumption environment. In particular, this paper investigates the impact of trust on the obtainers’ intentions to “inquire about accommodations” and to “request a booking” on Airbnb.com.

Design/methodology/approach

This paper takes the perspective of a potential renter, respectively, obtainer and adopts Gefen’s (2000) research model, which incorporates familiarity and trust in the e-commerce industry. In this regard, the paper extends the work on two-sided markets of Mittendorf (2016-2017). To verify the modified research model, a survey was conducted, gathering results from over 426 participants of which 255 valid responses from the Millennials generation were obtained. This paper uses covariance-based structural equation modeling to analyze both measurement and structural relationships regarding the interaction framework.

Findings

The results show empirical evidence that both “trust in the intermediary” and “trust in providers” are decisive for the obtainers’ intentions on the online platform. In this regard, this paper advances the understanding of the collaborative consumption mechanisms by adapting trust literature to validate the obtainers’ intentions on contemporary collaborative consumption platforms.

Research limitations/implications

While the unit of analysis of prior research comprises the general intention to share, this paper empirically validates a more deliberate decision of user intentions by focusing on the intention to inquire about accommodations (no registration necessary) and the intention to request a booking (registration necessary). However, this study is dependent on one setting and it is still unclear whether the results are generalizable to other collaborative consumption setups.

Originality/value

This paper is in line with the work of Mittendorf (2016-2017), thus, it uses a sophisticated statistical approach to analyze trust in the collaborative consumption environment, such as confirmatory factor analysis and structural equation modeling.
Situational relevance of music information modes
Authors: Rousi Antti Mikael , Savolainen Reijo , Harviainen Maaria , Vakkari Pertti
Published: April 2018

Purpose

The purpose of this paper is to elaborate the picture of situational relevance of music information from a performing musician’s point of view by delving into its diverse layers within the context of Doctor of Music students’ information seeking.

Design/methodology/approach

Music-related information is approached through six modes that categorize music information sources based on their levels of abstraction. Situational relevance of the modes of music information is examined in relation to the situational requirements of accomplishing a dissertation on music task consisting of both a series of concerts and a written thesis. The empirical material was collected by interviewing Finnish doctoral students in the field of music performance.

Findings

A set of situational relevance types related to each mode of music information were identified. As a whole, the differences between the perceived importance of the modes varied a little.

Research limitations/implications

The goal of the present paper is not to create a generalizable list of situational relevance types suggested by modes of music information, but to show that the modes may suggest diverse situational relevance types of their own when evaluated by performing musicians.

Originality/value

The present paper provides a rare account on performing musicians’ vocational and school-related information seeking. For studies of music information retrieval, the present paper offers new contextual facets explaining why diverse music information could be relevant to musicians. For studies of music-related information seeking, the present study offers new insights on why performing musicians have information needs regarding certain types of music information sources.
Whey valorization: current options and future scenario – a critical review
Authors: Panghal Anil , Patidar Rakesh , Jaglan Sundeep , Chhikara Navnidhi , Khatkar Sunil K. , Gat Yogesh , Sindhu Neelesh
Published: April 2018

Purpose

The purpose of this paper is to review the advanced technologies and approaches for utilization of waste generated in dairy industry. Whey is highly contaminated, with a high organic load around 100,000 mg O2/L COD (chemical oxygen demand), and is not used for further processing. The waste generated in different food industries can be utilized in different value addition product with the help of advanced technology.

Design/methodology/approach

Major well-known bibliometric information sources are the Web of Science, Scopus, Mendeley and Google Scholar. Several keywords like nutrition value of whey, whey utilization, whey valorization, whey technologies, whey beverages, fruit-based whey beverage, carbonated beverage, probiotic or alcoholic beverages, herbal beverage, fermented beverage and current scenarios were chosen to obtain a large range of papers to be analyzed. A final inventory of 126 scientific sources was made after sorting and classifying them according to different criteria based on topic, academic field country of origin and year of publication.

Findings

The comprehensive review of different literature, data sources and research papers seeks to find and discuss various sustainable solutions to this huge waste generated from milk industry. The sustainable use of whey for production and conversion in different types of products can uplift the bio-based economy of industries and thereof national/international economy. The recent upsurge in consumer interest for health-promoting products has opened up new vistas for whey beverages and other whey products research and development.

Originality/value

The paper draws out different sustainable characteristics and technology of whey products available in market, as well as potential products to be launched in the market. Interestingly, over the past few years, dairy industries have applied various technologies to process cheese whey and are in search of new products which can be prepared from the by-product. This review discusses on the recent research development of whey valorization with particular reference to technologies used in the addition to their commercial availability and a way forward.
Autonomous team members’ expectations for top-leader involvement
Authors: Hess James P.
Published: April 2018

Purpose

The purpose of this paper is to examine incongruities between autonomous team members’ expectations for top-leader involvement with teams and their perceptions of top-leader involvement actually encountered in their own team experiences.

Design/methodology/approach

Interview feedback was sought from three participants from each of six autonomous teams to capture explanations of their lived experiences from team participation. Transcribed data were examined through thematic analysis, from which patterned responses and meanings relevant to the research inquiry were identified.

Findings

To foster a team environment and shape the organizational context to align with autonomous team members’ expectations, organizational leaders should give significant attention to all-inclusive recruitment; frequent, face-to-face communication between themselves and team members; and an unwavering resource allocation.

Originality/value

This study addresses a unique realm of team research in addressing the need for top leaders to understand team members’ expectations for their involvement in shaping an organizational context most conducive to team effectiveness.
Video game–induced tourism: a new frontier for destination marketers
Authors: Dubois Louis-Etienne , Gibbs Chris
Published: April 2018

Purpose

This paper aims to expand the media-related tourism literature in a new domain of application by highlighting a connection between the world of video games and tourism.

Design/methodology/approach

Through deductive content analysis, this study looks at 137 online comments posted on popular gaming and travel websites that connect two popular video games (Assassin’s Creed II and Assassin’s Creed Unity) and travel motivation.

Findings

Results establish that video games share similar travel motivation elements with film and should be considered as a driver of tourism. It argues that destinations should consider video games as a platform for motivating tourists before they consider investing in virtual reality. It outlines opportunities for destinations interested in video game-induced tourism and calls for more research and case studies that link video games with destinations.

Originality/value

This is, to the authors’ knowledge, the first paper to investigate this connection. As such, it outlines untapped opportunities for destinations interested in video game-induced tourism and opens up a new line of research within media-related tourism literature.
A bandwidth enhancement and size reduction of monopole microstrip antenna for ultra wideband application
Authors: Djidel Saadi , Bouamar Mohamed , Khedrouche Djamel
Published: April 2018

Purpose

Modern wireless communication application requires an antenna system to meet the requirements of miniaturization and wideband characteristic. In recent years, several antenna designs, that meet these requirements, have been proposed in the literature. In this context, the purpose of this paper is to design a new microstrip monopole antenna with a bandwidth enhancement and size reduction for ultra wideband application.

Design/methodology/approach

The patch, of leaf of a plant shape, the feed line and the ground plane are printed on the inexpensive FR4 substrate material with permittivity 4.4 and loss tangent 0.02. To obtain optimal dimensions, a parametric study is conducted through numerical computations by using electromagnetic simulators HFSS and CST. A prototype of the optimized antenna is fabricated and subjected to a series of simulations and measurements.

Findings

The measurement results show a −10 dB impedance bandwidth of 6.7 GHz (3.5 GHz-10.2 GHz) which can cover the whole bandwidth requirements of an ultra wideband application. The designed antenna exhibits nearly symmetric and omnidirectional radiations patterns over the operating band, which is a sought-after behavior in microstrip patch antennas and has overall size of 35 × 31 mm2.

Originality/value

The proposed microstrip monopole antenna is very useful for modern wireless communications systems because of its compact size, its capability of covering the whole ultra wideband frequency band and its good radiation characteristics.
Designing of intake manifold for Formula Student car
Authors: Sardar Paramjotsingh , Sardar Arshdeepsingh
Published: April 2018

Purpose

The purpose of this research was to design an intake manifold which will improve the functioning of the engine. This will improve the acceleration of the car which will help in performing better at the dynamic events at a Formula Student Competition.

Design/methodology/approach

The approach was to use the Helmholtz resonator theory to find the appropriate runner length for the desired rotation per minute range. Along with this, it is important to ensure that there is minimum flow separation for which computational fluid dynamics analysis was carried out.

Findings

The research showed that all the processes involved in this system are dynamic, so steady-state analysis is not quite relevant instead transient analysis will help in getting a better idea.

Originality/value

Majority of research is primarily focused on convergent divergent nozzle, to try and minimize the effect of the restrictor. But to fine-tune the performance of the engine, it is important to consider the effects of runners and plenum so as to choose appropriate runner length and plenum volume.
Optimization of process parameters on machining force and MRR during end milling of GFRP composites using GRA
Authors: MP Jenarthanan , Gavireddy Prasanna Kumar Reddy , Gummadi Chetan Sai , Mandapaka Surya Ramesh
Published: April 2018

Purpose

This paper aims to investigate the effect and parametric optimization of process parameters during milling of glass fibre-reinforced plastics (GFRP) composites using grey relational analysis (GRA).

Design/methodology/approach

Experiments are conducted using helix angle, spindle speed, feed rate, depth of cut and fibre orientation angle as typical process parameters. GRA is adopted to obtain grey relational grade for the milling process with multiple characteristics, namely, machining force and material removal rate (MRR). Analysis of variance is performed to get the contribution of each parameter on the performance characteristics.

Findings

It is observed that helix angle and fibre orientation angle are the most significant process parameters that affect the milling of GFRP composites. The experimental results reveal that the helix angle of 45°, spindle speed of 3000 rpm, feed rate of 1000 mm/min, depth of cut of 2 mm and fibre orientation angle of 15° is the optimum combination of lower machining force and higher MRR. The experimental results for the optimal setting show that there is considerable improvement in the process.

Originality/value

Optimization of process parameters on machining force and MRR during endmilling of GFRP composites using GRA has not been attempted previously.
Trusting banks in China
Authors: Fungáčová Zuzana , Weill Laurent
Published: April 2018

Trust in banks is essential to financial system effectiveness. The present study examines the determinants of trust in banks in China. Using the most recent wave of the World Values Survey, which included information on trust in banks from the survey in China in 2012, we perform ordered logit estimations to investigate the potential influence of a large set of individual and provincial indicators on trust in banks. We observe the influence of certain sociodemographic indicators. Membership in the Communist Party and living in a rural area are negatively associated with trust in banks. Age and satisfaction with financial situation contribute to higher trust in banks, while being married and having a higher level of education tend to lower trust in banks. Access to information regardless of the type of media disseminating the information (newspapers, television or Internet) seem to have no impact on trust in banks. Economic values influence trust in banks. In particular, individuals who favour inequality as an incentive for individual effort or support an expanded government ownership role in the economy tend to trust banks more.
Characterization of a feruloyl esterase from Aspergillus terreus facilitates the division of fungal enzymes from Carbohydrate Esterase family 1 of the carbohydrate‐active enzymes (CAZy) database
Authors: Mäkelä Miia R. , Dilokpimol Adiphol , Koskela Salla M. , Kuuskeri Jaana , de Vries Ronald P. , Hildén Kristiina
Published: April 2018

Feruloyl esterases (FAEs) are accessory enzymes for plant biomass degradation, which catalyse hydrolysis of carboxylic ester linkages between hydroxycinnamic acids and plant cell‐wall carbohydrates. They are a diverse group of enzymes evolved from, e.g. acetyl xylan esterases (AXEs), lipases and tannases, thus complicating their classification and prediction of function by sequence similarity. Recently, an increasing number of fungal FAEs have been biochemically characterized, owing to their potential in various biotechnological applications and multitude of candidate FAEs in fungal genomes. However, only part of the fungal FAEs are included in Carbohydrate Esterase family 1 (CE1) of the carbohydrate‐active enzymes (CAZy) database. In this work, we performed a phylogenetic analysis that divided the fungal members of CE1 into five subfamilies of which three contained characterized enzymes with conserved activities. Conservation within one of the subfamilies was confirmed by characterization of an additional CE1 enzyme from Aspergillus terreus. Recombinant A. terreus FaeD (AtFaeD) showed broad specificity towards synthetic methyl and ethyl esters, and released ferulic acid from plant biomass substrates, demonstrating its true FAE activity and interesting features as potential biocatalyst. The subfamily division of the fungal CE1 members enables more efficient selection of candidate enzymes for biotechnological processes.
Insights into population genetics and evolution of polyploids and their ancestors
Authors: Jighly Abdulqader , Lin Zibei , Forster John W. , Spangenberg German C. , Hayes Ben J. , Daetwyler Hans D.
Published: April 2018

We have developed the first comprehensive simulator for polyploid genomes (PolySim) and demonstrated its value by performing large‐scale simulations to examine the effect of different population parameters on the evolution of polyploids. PolySim is unlimited in terms of ploidy, population size or number of simulated loci. Our process considered the evolution of polyploids from diploid ancestors, polysomic inheritance, inbreeding, recombination rate change in polyploids and gene flow from lower to higher ploidies. We compared the number of segregating single nucleotide polymorphisms, minor allele frequency, heterozygosity, R2 and average kinship relatedness between different simulated scenarios, and to real data from polyploid species. As expected, allotetraploid populations showed no difference from their ancestral diploids when population size remained constant and there was no gene flow or multivalent (MV) pairing between subgenomes. Autotetraploid populations showed significant differences from their ancestors for most parameters and diverged from their ancestral populations faster than allotetraploids. Autotetraploids can have significantly higher heterozygosity, relatedness and extended linkage disequilibrium compared with allotetraploids. Interestingly, autotetraploids were more sensitive to increasing selfing rate and decreasing population size. MV formation can homogenize allotetraploid subgenomes, but this homogenization requires a higher MV rate than previously proposed. Our results can be considered as the first building block to understand polyploid population evolutionary dynamics. PolySim can be used to simulate a wide variety of polyploid organisms that mimic empirical populations, which, in combination with quantitative genetics tools, can be used to investigate the power of genomewide association, genomic selection or breeding programme designs in these species.