bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cultural and creative entrepreneurs: understanding the role of entrepreneurial identity
Authors: Werthes Daniela , Mauer René , Brettel Malte 
Published: November 2017

PurposeThe purpose of this paper is to explore whether and how entrepreneurs in the cultural and creative industries develop an entrepreneurial identity. It also aims to expand research on cultural and creative entrepreneurship.Design/methodology/approachThe study is based on longitudinal qualitative cases and analyses the potential entrepreneurial identity development of eight cultural and creative entrepreneurs from Germany. The researchers create a framework to ascertain whether and, if so, how cultural and creative entrepreneurs develop an entrepreneurial identity.FindingsThe findings suggest that cultural and creative entrepreneurs do develop an entrepreneurial identity and incorporate their cultural and creative identity into that entrepreneurial identity whereas self-reflection is a key driver in the development.Practical implicationsCultural and creative entrepreneurs are a key driver of economic development. Hence, it is important to generate a more detailed understanding of their entrepreneurial mind-set and their behaviour.Originality/valueThe study suggests that cultural and creative entrepreneurs actively develop an entrepreneurial identity and that self-reflection, communication with other entrepreneurs and entrepreneurial experience are the main drivers of their identity development. Nevertheless, their cultural and creative identity does have an influence on their entrepreneurial identity. In addition, the study demonstrates how such entrepreneurs develop their identity.
French football, foreign investors: global sports as country branding
Authors: Chanavat Nicolas 
Published: November 2017

Purpose
This research aims to examine the fundamental elements regarding Paris Saint-Germain (PSG) marketing strategy. Specifically, the objective of this analysis is the implementation of globalizing the club brand of PSG.

Design/methodology/approach
The author held three 2-h face-to-face meetings. Given that the main criterion in the choice of the respondent for a case study was the quality of the information that could be obtained during the interview, the professionals were selected because of their direct involvement in the PSG’s global marketing strategy. Data collection was conducted with the aid of several in-depth interviews with the Deputy General Manager (in charge of commercial activities), Frédéric Longuépée, the Corporate and Brand Communications Manager, Nicolas Serres and the Brand Diversification and Development Manager (in charge of eSports), Fabien Allègre.

Findings
It appears that since the acquisition of PSG by Qatar Sports Investments, the club has entered a new era and has set in motion a strategy to compete with the biggest sports brands in the world. The results of this research reveal that the globalization strategy of PSG is itself part of Qatar’s internationalization approach. The findings also suggest that the global marketing strategy of the club is based on three key steps. First was the reorganization of the club to create an omnisports brand with a new CEO at its head, which is highlighted here. The rebuilding of the brand followed, through the creation of new identity and logotype, the acquisition of brands-athletes and controlled communication. Finally, the development of the club which is based on the diversification of growth drivers.

Originality/value
Overall, these results contribute to the enrichment of sports clubs and global marketing research This research offers a unique perspective and insights on the marketing strategic globalization of a professional sports club linked with the internationalization of a country. Best practices become visible through this analysis, which might serve as guidelines in other contexts.
Corporate accelerators: fostering innovation while bringing together startups and large firms
Authors: Kupp Martin , Marval Moyra , Borchers Peter 
Published: November 2017

Purpose
This paper aims to examine the experience of hub:raum, the accelerator program of Deutsche Telekom, to deduce potential success factors. In today’s fast-paced world, large companies strive to keep up with the disruptive changes in their markets brought by innovative startups. In face of these challenges, the paradigm of open innovation encourages firms to use internal ideas and external sources of knowledge to advance their innovation output (Chesbrough, 2003). Yet, in practice, this is much easier said than done, particularly when large firms engage in partnerships with startups.

Design/methodology/approach
This paper is based on interviews and academic collaboration with hub:raum.

Findings
From the five years of experience since the foundation of hub:raum, one of the first German corporate accelerators, the authors have seen five key success factors: transparent and aligned goals, an independent team of startup advocates, a large and committed external network, top-management backing, long-term objectives and performance indicators.

Research limitations/implications
This paper is based on the case study of hub:raum. There are several limitations to this approach. Hub:raum has a clear industry focus in the information and communications technology industry and also acting international has a strong German and European focus.

Practical implications
Based on the identified five success factors, executives working with or designing accelerator programs can significantly increase the chances of success of these kind of programs. Constantly working on the right alignment of these factors with the overall objective of the incubator program is the key task of the management.

Social implications
Designing and running corporate accelerator programs more successfully will also help to enable more startups to join forces with corporates, creating more jobs and developing successful product innovation.

Originality/value
The paper is based on working for five years closely with the hub:raum management, a series of interviews and longitudinal study of this specific accelerator program.
Bitcoin transactions: a digital discovery of illicit activity on the blockchain
Authors: Turner Adam , Irwin Angela Samantha Maitland 
Published: November 2017

Purpose
The purpose of this paper is to determine if Bitcoin transactions could be de-anonymised by analysing the Bitcoin blockchain and transactions conducted through the blockchain. In addition, graph analysis and the use of modern social media technology were examined to determine how they may help reveal the identity of Bitcoin users. A review of machine learning techniques and heuristics was carried out to learn how certain behaviours from the Bitcoin network could be augmented with social media technology and other data to identify illicit transactions.

Design/methodology/approach
A number of experiments were conducted and time was spend observing the network to ascertain how Bitcoin transactions work, how the Bitcoin protocol operates over the network and what Bitcoin artefacts can be examined from a digital forensics perspective. Packet sniffing software, Wireshark, was used to see whether the identity of a user is revealed when they set up a wallet via an online wallet service. In addition, a block parser was used to analyse the Bitcoin client synchronisation and reveal information on the behaviour of a Bitcoin node when it joins the network and synchronises to the latest blockchain. The final experiment involved setting up and witnessing a transaction using the Bitcoin Client API. These experiments and observations were then used to design a proof of concept and functional software architecture for searching, indexing and analyzing publicly available data flowing from the blockchain and other big data sources.

Findings
Using heuristics and graph analysis techniques show us that it is possible to build up a picture of behaviour of Bitcoin addresses and transactions, then utilise existing typologies of illicit behaviour to collect, process and exploit potential red flag indicators. Augmenting Bitcoin data, big data and social media may be used to reveal potentially illicit financial transaction going through the Bitcoin blockchain and machine learning applied to the data sets to rank and cluster suspicious transactions.

Originality/value
The development of a functional software architecture that, in theory, could be used to detect suspicious illicit transactions on the Bitcoin network.
The Mammalian Circadian Clock Exhibits Chronic Ethanol Tolerance and Withdrawal‐Induced Glutamate Hypersensitivity, Accompanied by Changes in Glutamate and TrkB Receptor Proteins
Authors: Lindsay Jonathan H. , Prosser Rebecca A. 
Published: November 2017

BackgroundAlcohol tolerance and withdrawal‐induced effects are criteria for alcohol use disorders listed by the DSM‐V. Although tolerance and withdrawal have been studied over many decades, there is still uncertainty regarding mechanistic distinctions that characterize these different forms of ethanol (EtOH)‐induced plasticity. Previously, we demonstrated that the suprachiasmatic nucleus (SCN) circadian clock develops both acute and rapid tolerance to EtOH inhibition of glutamate‐induced circadian phase shifts. Here, we demonstrate that chronic EtOH tolerance and withdrawal‐induced glutamate hypersensitivity occur in vitro and that rapid tolerance, chronic tolerance, and glutamate hypersensitivity have distinct cellular changes.MethodsWe use single‐unit extracellular electrophysiological recordings to determine whether chronic tolerance to EtOH inhibition of glutamatergic phase shifts and withdrawal‐induced glutamate hypersensitivity develop in the SCN. We use Western blotting to compare phosphorylation state and total expression of N‐methyl‐D‐aspartate (NMDA) receptor subunits and associated proteins in the SCN after mice were exposed to varying EtOH consumption paradigms.ResultsChronic tolerance developed after a minimum of 8 days of 4 h/d EtOH access, as indicated by a decreased sensitivity to EtOH inhibition of glutamate‐induced phase shifts. We also observed an increased sensitivity to glutamate‐induced phase shifts in SCN tissue following withdrawal. We demonstrated an increase in the ratio of NR2B:NR2A NMDA receptor subunit expression after 21 days, but not after 10 days of EtOH drinking. This increase persisted during EtOH withdrawal, along with an increase in NR2B Y1472 phosphorylation, mature brain‐derived neurotrophic factor, and phosphorylated TrkB.ConclusionsThese results demonstrate that multiple tolerance forms and withdrawal‐induced glutamate hypersensitivity occur in the SCN and that these different forms of EtOH‐induced plasticity are accompanied by distinct changes in cellular physiology. Importantly, this study further demonstrates the power of using the SCN as a model system to investigate EtOH‐induced plasticity.
Incident diuretic drug use and adverse respiratory events among older adults with chronic obstructive pulmonary disease
Authors: Vozoris Nicholas T. , Wang Xuesong , Austin Peter C. , O'Donnell Denis E. , Aaron Shawn D. , To Teresa M. , Gershon Andrea S. 
Published: November 2017

AimsDiuretic drugs may theoretically improve respiratory health outcomes in chronic obstructive pulmonary disease (COPD) through several possible mechanisms, but they might also lead to respiratory harm. We evaluated the association of incident oral diuretic drug use with respiratory‐related morbidity and mortality among older adults with COPD.MethodsThis was a population‐based, retrospective cohort study using health administrative data from Ontario, Canada, for the period 2008–2013. We identified adults aged 66 years and older with nonpalliative COPD using a validated algorithm. Respiratory‐related morbidity and mortality were evaluated within 30 days of incident oral diuretic drug use compared to nonuse using Cox proportional hazard regression and applying inverse probability of treatment weighting using the propensity score to minimize confounding.ResultsOut of 99 766 individuals aged 66 years and older with COPD identified, incident diuretic receipt occurred in 51.7%. Relative to controls, incident diuretic users had significantly increased rates for hospitalization for COPD or pneumonia [hazard ratio (HR) 1.22, 95% confidence interval (CI) 1.07–1.40], as well as more emergency room visits for COPD or pneumonia (HR 1.35, 95% CI 1.18–1.56), COPD or pneumonia‐related mortality (HR 1.41; 95% CI 1.04–1.92) and all‐cause mortality (HR 1.20, 95% CI 1.06–1.35). The increased respiratory‐related morbidity and mortality observed were specifically as a result of loop diuretic use.ConclusionsIncident diuretic drugs, and more specifically loop diuretics, were associated with increased rates of respiratory‐related morbidity and mortality among older adults with nonpalliative COPD. Further studies are needed to determine if this association is causative or due to unresolved confounding.
The interplay of gender and social background: A longitudinal study of interaction effects in reading attitudes and behaviour
Authors: Becker Michael , McElvany Nele 
Published: November 2017

BackgroundResearchers often report and discuss gender differences. However, recent research has drawn attention to interaction effects between gender and other social categories.AimsThis study analysed the development of disparities in students’ reading‐related self‐concept, intrinsic motivation, and behaviour, as they relate to differences in gender and socio‐economic family background. Drawing on expectancy‐value theory, we regarded reading‐related self‐concept, motivation, and behaviour as key to explaining the growing differences between boys and girls in adolescence. Specifically, we focused on the interaction between gender and socio‐economic background in children, which has been discussed in the context of moderating gender differences but not in the context of reading‐related attitudes and behaviour.SampleThe investigation is based on a longitudinal sample of N = 717 German students between third and sixth grades.MethodWe used questionnaire data from both students and parents. To compare students’ development across time, we applied multigroup latent growth curve models.ResultsWe found evidence of increasing gender differences, which were also moderated by the socio‐economic status (SES) of parents: a gender gap either already existed (intrinsic motivation and reading behaviour) or intensified (reading self‐concept and reading behaviour) between third and sixth grades. The interaction of gender and SES seemed particularly important for reading self‐concept, with the gender gap growing less substantially for higher‐SES children. Moreover, this pattern persisted for reading self‐concept, even when controlling for achievement differences.ConclusionsThe results provide evidence that gender, social background, and the interaction of the two are relevant for development in the domain of reading, even in young children.
Chronology of a lacustrine core from Lake Linggo Co using a combination ofOSL,14C and210Pb dating: implications for the dating of lacustrine sediments from the Tibetan Plateau
Authors: Hu Gang , Yi Chaolu , Zhang Jiafu , Cao Guirong , Pan Baolin , Liu Jinhua , Jiang Tao , Yi Shuangwen , Li Dehong , Huang Jianwei 
Published: November 2017

Vast palaeolakes once occupied the Qinghai‐Tibetan Plateau (TP). Analyses of the sedimentary records of these lakes could potentially provide an extensive dating archive. Many previously constructed age‐depth models simulating lacustrine cores have been principally based on radiocarbon (14C) dating. However, such dating could have been hampered by the so‐called ‘lake reservoir effect’ (LRE) and the reworking of lakebed sediments, resulting in inaccurate14C age‐depth models and limiting interpretations of existing lacustrine palaeoclimatic records. Lake Linggo Co is located on the centralTP, in one of the coldest and most arid regions of Tibet. We dated a 9.87‐m‐long lacustrine core extracted from the lakebed at a water depth of ~60 m using a combination of210Pb,14C and optically stimulated luminescence (OSL) techniques. Some14C ages showed significant age reversals; all the14C ages were much older than the210Pb andOSLages for the same depths. This could possibly be attributed to the presence of old, inherited carbon, causing the inherited14C age to appear unstable during the deposition period. The210Pb andOSLages were roughly concordant, and were also consistent with the stratigraphical succession. We therefore suggest that14C dating may, on its own, be inadequate for accurate dating of lacustrine sediment sites on theTP, and that theOSLmethod should also be applied in order to evaluate the reliability of any14C ages. With this approach, we constructed an age‐depth model, revealing sedimentation rates of 1.7, 0.8, 6.8 and 0.6 mm a−1between 0–1.9, 1.9–4.2, 4.2–4.4 and 4.4–9.4 ka, respectively.
Heterogeneous neuronal activity in the lateral habenula after short‐ and long‐term cocaine self‐administration in rats
Authors: Gao Ping , Groenewegen Henk J. , Vanderschuren Louk J. M. J. , Voorn Pieter 
Published: November 2017

AbstractCocaine addiction is thought to be the result of drug‐induced functional changes in a neural network implicated in emotions, learning and cognitive control. Recent studies have implicated the lateral habenula (LHb) in drug‐directed behavior, especially its aversive aspects. Limited cocaine exposure has been shown to alter neuronal activity in the LHb, but the impact of long‐term drug exposure on habenula function has not been determined. Therefore, using c‐fos as a marker, we here examined neuronal activity in LHb in rats that self‐administered cocaine for either 10 or 60 days. Both the density of labeled cells and the cellular labeling intensity were measured in the lateral (LHbL) and medial (LHbM) parts of LHb. After 10 days of cocaine self‐administration, both the density and intensity of c‐fos‐positive cells were significantly increased in LHbL, but not LHbM, while after 60 days, an increased density (but not intensity) of labeled neurons in both LHbL and LHbM was observed. Most c‐fos‐labeled neurons were glutamatergic. In addition, we found increased GAD65 expression after 10 but not 60 days of cocaine self‐administration in the rostral mesencephalic tegmental nucleus. These data shed light on the complex temporal dynamics by which cocaine self‐administration alters activity in LHb circuitry, which may play an important role in the descent to compulsive drug use as a result of prolonged cocaine‐taking experience.
Annual global mean temperature explains reproductive success in a marine vertebrate from 1955 to 2010
Authors: Mauck Robert A. , Dearborn Donald C. , Huntington Charles E. 
Published: November 2017

AbstractThe salient feature of anthropogenic climate change over the last century has been the rise in global mean temperature. However, global mean temperature is not used as an explanatory variable in studies of population‐level response to climate change, perhaps because the signal‐to‐noise ratio of this gross measure makes its effect difficult to detect in any but the longest of datasets. Using a population of Leach's storm‐petrels breeding in the Bay of Fundy, we tested whether local, regional, or global temperature measures are the best index of reproductive success in the face of climate change in species that travel widely between and within seasons. With a 56‐year dataset, we found that annual global mean temperature (AGMT) was the single most important predictor of hatching success, more so than regional sea surface temperatures (breeding season or winter) and local air temperatures at the nesting colony. Storm‐petrel reproductive success showed a quadratic response to rising temperatures, in that hatching success increased up to some critical temperature, and then declined when AGMT exceeded that temperature. The year at which AGMT began to consistently exceed that critical temperature was 1988. Importantly, in this population of known‐age individuals, the impact of changing climate was greatest on inexperienced breeders: reproductive success of inexperienced birds increased more rapidly as temperatures rose and declined more rapidly after the tipping point than did reproductive success of experienced individuals. The generality of our finding that AGMT is the best predictor of reproductive success in this system may hinge on two things. First, an integrative global measure may be best for species in which individuals move across an enormous spatial range, especially within seasons. Second, the length of our dataset and our capacity to account for individual‐ and age‐based variation in reproductive success increase our ability to detect a noisy signal.
Donepezil is associated with decreased in‐hospital mortality as a result of pneumonia among older patients with dementia: A retrospective cohort study
Authors: Abe Yasuko , Shimokado Kentaro , Fushimi Kiyohide 
Published: November 2017

AimPneumonia is one of the major causes of mortality in older adults. As the average lifespan has extended and new modalities to prevent or treat pneumonia are developed, the factors that affect the length of hospital stay (LHS) and in‐hospital mortality of older patients with pneumonia have changed. The object of the present study was to determine the factors associated with LHS and mortality as a result of pneumonia among older patients with dementia.MethodsWith a retrospective cohort study design, we used the data derived from the Japanese Administrative Database and diagnosis procedure combination/per diem payment system (DPC/PDPS) database. There were 39 336 admissions of older patients for pneumonia between August 2010 and March 2012. Patients with incomplete data were excluded, leaving 25 602 patients for analysis.ResultsHaving dementia decreased mortality (OR 0.71, P < 0.001) and increased LHS. Multiple logistic regression analysis identified donepezil as an independent factor that decreased mortality in patients with dementia (OR 0.36, P < 0.001). Donepezil was prescribed for 28.7% of these patients, and their mortality rate was significantly lower than those of patients with dementia who were not treated with donepezil and of patients without dementia. The mortality rate was higher for patients with dementia who were not treated with donepezil compared with patients who did not have dementia. All other factors that influenced LHS and mortality were similar to those reported by others.ConclusionsDonepezil seems to decrease in‐hospital mortality as a result of pneumonia among older patients with dementia. Geriatr Gerontol Int 2018; 18: 269–275.