bluuebunny/crossref_metadata_2025_split huggingface dataset:
Media channels and consumer purchasing decisions
Authors: Woo JongRoul , Ahn Joongha , Lee Jongsu , Koo Yoonmo 
Published: September 2015

Purpose
– The purpose of this paper is to explore the factors determining which communication mediums influence a given consumer deciding to purchase a specific product.

Design/methodology/approach
– Using a consumer survey and a multivariate probit (MVP) model, the authors explore consumer information searches related to purchases in nine categories: milk, instant noodles, shampoo, mobile phones, televisions, cars, mobile communication services, credit card services, and life insurance.

Findings
– The media channels that motivate a given consumer to make a given purchase vary depending on both socio-demographic variables and product categories.

Practical implications
– As consumers can now obtain product information through different and multiple media channels according to their personal characteristics and the category of the product they seek to purchase, these findings will help companies develop media planning strategies that will effectively target specific market segments.

Originality/value
– Unlike previous studies, the authors consider which media channels actually affect a consumer’s product purchase decisions, and the authors do so across product categories and media types to provide practical implications for media planning. Furthermore, this is the first application of the MVP model in this context.
Foreign direct investment and natural resources in Africa
Authors: Bokpin Godfred Alufar , Mensah Lord , Asamoah Michael E. 
Published: September 2015

Purpose– The purpose of this paper is to investigate the impact of natural resources on foreign direct investment (FDI) in Africa. Decomposing the measures of natural resource, in terms of contribution to GDP (oil rent (OR), mineral rent (MR) and forest rents (FRs)) and export drive (fuel exports (FE) and minerals export), with the objective of obtaining quantitative estimates of their relationship with FDI, we considered the effect of regional or trade blocks on the continent and control for trade openness, financial market development and infrastructure.Design/methodology/approach– Using annual panel data of 49 African countries over the period 1980-2011 and employing the system GMM estimation technique.Findings– The authors show that after allowing for effect of trade or regional block formation, natural resources in its composite form (ORs, MRs, forest rents (FRs), FEs and minerals export) influences FDI in Africa. Quantitatively, we demonstrate that though natural resources (compositely) influences FDI, the different measures of natural resource differ significantly in terms of their marginal contribution in attracting FDI to the continent especially to different trade blocks. The authors provide that in the presence of certain type of natural resources, trade openness or banking sector credit expansion or infrastructural development is less desirable whilst regional or trade blocks strongly moderate the effect of financial market development and infrastructural development on FDI flow on the continent.Originality/value– The authors employed a broad data set to provide evidence of the association between natural resources in its composite form and well as its various component and FDI to African after accounting for regional/trade blocks.
Unit roots and trend breaks in the Greek labor market
Authors: Venetis Ioannis A , Salamaliki Paraskevi K 
Published: September 2015

Purpose
– The purpose of this paper is to examine the time series behavior of Greek labor market series by providing an empirical perspective on trend breaks and unit roots. Trend breaks represent aggregate behavior responses to “infrequent” changes in economic fundamentals, including changes in fiscal or labor market conditions, as have been perceived in Greece during the last years. Unit roots reveal whether “regular” shocks have significant effects on the level of the series over a specified finite horizon.

Design/methodology/approach
– The authors employ recent procedures that deal with the “circular testing problem” between tests on the parameters of the trend function and unit root tests that often arises in empirical applications. These techniques assess trend function stability and are robust regardless of whether the noise component is stationary or having a unit root. Then, conditional on the presence of breaks, the authors test whether the series can be characterized by a stochastic trend.

Findings
– The analysis provides evidence of “infrequent” trend breaks that appear to coincide with the recent global economic crisis and the implementation of the counteraction (fiscal) measures to the Greek debt crisis. Allowing for trend breaks does not lead to a rejection of the unit root hypothesis, which might reflect the low flexibility of the country’s labor market operation.

Practical implications
– The procedures employed can be viewed as new tools that might help empirical researchers to explore more accurately the characteristics of individual time series and to find reasonable approximations to the true processes of the time series examined.

Originality/value
– The paper provides new information on the presence of structural changes in the Greek labor market, and on whether the “aggressive” and “occasional” nature of fiscal measures can be approximated by infrequent changes in the slope of the trend function.
Using participatory design and visual narrative inquiry to investigate researchers’ data challenges and recommendations for library research data services
Authors: Mattern Eleanor , Jeng Wei , He Daqing , Lyon Liz , Brenner Aaron 
Published: September 2015

Purpose
– The purpose of this paper is to report on an information gathering study on users’ research data-related challenges and proposals for library research data services (RDS). This study probes how early career researchers visually conceptualize the research process in their disciplines, their self-reported research data challenges, and their recommendations for library RDS.

Design/methodology/approach
– Two focus group sessions were undertaken with a total of eight early career researchers. Adopting the visual narrative inquiry method, the participants were asked to sketch the general research process in their domain. The individuals’ illustrations of the research process were then used as the basis for reflecting on their data-related needs and potential RDS that would assist them during the research process.

Findings
– Participants presented a research process that was more personal and, in most cases, more imperfect than the research lifecycle models that academic libraries are increasingly using for RDS development and communication. The authors present their data-related challenges, which included data access barriers, low knowledge of best practices for research data management, the need for a deeper understanding of post-publication impact, and inconsistent awareness of existing library and institution RDS. The authors outline RDS recommendations that participants proposed, which included a web-based tools, customized training sessions, and “distilled” guides to research data best practices.

Practical implications
– The study flagged users’ gaps in understandings of existing library and institutional RDS, suggesting that there may be an opportunity to engage users in the design of communications plans for services. The findings from this user study will inform the development of RDS at the institution.

Originality/value
– This paper puts forth a methodological approach that academic libraries can adapt for understanding users’ needs and user-generated design solutions.
Research data management at the University of Bristol
Authors: Hiom Debra , Fripp Dom , Gray Stephen , Snow Kellie , Steer Damian 
Published: September 2015

Purpose
– The purpose of this paper is to chart the development of research data management services within the University of Bristol, from the initial Jisc-funded project, through to pilot service and planned core funding of the service.

Design/methodology/approach
– The paper provides a case study of the approach of the University of Bristol Library service to develop a sustainable Research Data Service.

Findings
– It outlines the services developed during the project and pilot phases of the service. In particular it focuses on the sustainability planning to ensure that research data management is embedded as a core university service.

Originality/value
– The case study provides practical advice and valuable insights into the issues and experiences of ensuring that research data management is properly valued and supported within universities.
Pathways linking drug use and labour market trajectories: the role of catastrophic events
Authors: Richardson Lindsey , Small Will , Kerr Thomas 
Published: September 2015

AbstractPeople affected by substance use disorders often experience sub‐optimal employment outcomes. The role of drug use in processes that produce and entrench labour market precarity among people who inject drugs (PWID) have not, however, been fully described. We recruited 22PWIDfrom ongoing prospective cohort studies in Vancouver, Canada, with whom we conducted semi‐structured retrospective interviews and then employed a thematic analysis that drew on concepts from life course theory to explore the mechanisms and pathways linking drug use and labour market trajectories. The participants' narratives identified processes corresponding to causation, whereby suboptimal employment outcomes led to harmful drug use; direct selection, where impairment, health complications or drug‐seeking activities selected individuals out of employment; and indirect selection, where external factors, such as catastrophic events, marked the initiation or intensification of substance use concurrent with sudden changes in capacities for employment. Catastrophic events linking negative transitions in both drug use and labour market trajectories were of primary importance, demarcating critical initiation and transitional events in individual risk trajectories. These results challenge conventional assumptions about the primacy of drug use in determining employment outcomes amongPWIDand suggest the importance of multidimensional support to mitigate the initiation, accumulation and entrenchment of labour market and drug‐related disadvantage.
Development and calibration of a novel sensor to quantify the water content of surface soils and biological soil crusts
Authors: Weber Bettina , Berkemeier Thomas , Ruckteschler Nina , Caesar Jennifer , Heintz Henno , Ritter Holger , Braß Henning 
Published: September 2015

Summary

The surface layer of soil as transition zone between pedosphere and atmosphere plays a crucial role in exchange processes of nutrients, atmospheric gases and water. Knowledge of its water content is essential, as it governs both physiological and transport mechanisms. In arid and semi‐arid regions, this uppermost soil layer is commonly colonized by biological soil crusts (biocrusts), which play major roles in the global terrestrial carbon and nitrogen cycles. The water status of biocrusts is essential as it controls the activity, productivity and surface exchange of these poikilohydric communities. On‐site analyses of the water content of both bare and crusted soils are thus urgently needed to correctly model the exchange processes of water, nutrients and trace gases at the soil surface.

In this study, we present the biocrust wetness probe (BWP), which is the first to reliably measure the water content within biocrusts or the uppermost 5 mm of a substrate. Using a weak alternating current, the electrical conductivity is assessed over time. With an automatic calibration routine, conductivity values are temperature‐corrected and converted into water contents and precipitation equivalents.

During 1 year of continuous field measurements at 5‐min intervals, 60 BWPs worked reliably without any failure. The probes responded immediately and individually upon rain events, showing substrate‐specific water response curves, which are well represented by linear and exponential calibration curves.

The BWP facilitates the spatio‐temporal assessment and interpolation of surface soil wetness and thus biocrust activity, which governs nutrient fluxes, trace gas release and biogeochemical cycles. Its implementation in distributed sensor networks is under development.
Pharmacokinetics and pharmacodynamics of piperacillin/tazobactam during high volume haemodiafiltration in patients with septic shock
Authors: Tamme K. , Oselin K. , Kipper K. , Tasa T. , Metsvaht T. , Karjagin J. , Herodes K. , Kern H. , Starkopf J. 
Published: September 2015

BackgroundThe purpose of the study was to evaluate the pharmacokinetics (PK) and pharmacodynamics (PD) of piperacillin and tazobactam during high‐volume haemodiafiltration (HVHDF).MethodsA single dose of piperacillin/tazobactam (4/0.5 g) was administered as 30 minute infusion during HVHDF to 10 patients with acute kidney injury due to septic shock. Arterial blood samples were collected before and at 30 or 60 min intervals over 8 h (12 samples) after study drug administration. Concentrations of piperacillin and tazobactam were determined by HPLC‐MS/MS. R software was used for population PK analysis and Monte Carlo Simulation of probability of PK/PD target attainment (PTA) in 1000 subjects.ResultsA total of 101 samples were collected during HVHDF. The median (IQR) estimated glomerular filtration rate of the patients was 16 (11.25–27.5) ml/min/1.73 m2 and HVHDF effluent rate was 208 (146.3–298.3) ml/kg/h. A final two‐compartment population PK model predicted mean (%SE) total piperacillin clearance on HVHDF was 6.9 (6.4) l/h, volume of distribution of central compartment 9.0 (10.1) l and of peripheral compartment 11.2 (12.2) l. The PTA of 50% fT>MIC for piperacillin 4 g/tazobactam 0.5 g dosed every 8 h as 0.5‐h and 4‐h infusion was 84.3% and 100% for MIC of 16 mg/l respectively. Aiming 100% fT>MIC of 16 mg/l, the PTA values were 88.6% and 61.0%, for piperacillin 4 g/tazobactam 0.5 g 4‐h infusion every 6 and 8 h respectively.ConclusionsFor bactericidal PK/PD target attainment piperacillin/tazobactam doses of 4/0.5 g every 8 h appear appropriate in septic shock patients with minimal residual renal function during HVHDF.
Services for people at high risk improve outcomes in patients with first episode psychosis
Authors: Fusar‐Poli P. , Díaz‐Caneja C. M. , Patel R. , Valmaggia L. , Byrne M. , Garety P. , Shetty H. , Broadbent M. , Stewart R. , McGuire P. 
Published: September 2015

ObjectiveAbout one‐third of patients referred to services for people at high risk for psychosis may have already developed a first episode of psychosis (FEP). We compared clinical outcomes in FEP patients who presented to either high risk or conventional mental health services.MethodRetrospective study comparing duration of hospital admission, referral‐to‐diagnosis time, need for compulsory hospital admission and frequency of admission in patients with FEP who initially presented to a high‐risk service (n = 164) to patients with FEP who initially presented to conventional mental health services (n = 2779). Regression models were performed, controlling for several confounders.ResultsFEP patients who had presented to a high‐risk service spent 17 fewer days in hospital [95% CI: −33.7 to (−0.3)], had a shorter referral‐to‐diagnosis time [B coefficient −74.5 days, 95% CI: −101.9 to −(47.1)], a lower frequency of admission [IRR: 0.49 (95% CI: 0.39–0.61)] and a lower likelihood of compulsory admission [OR: 0.52 (95% CI: 0.34–0.81)] in the 24 months following referral, as compared to FEP patients who were first diagnosed at conventional services.ConclusionServices for people at high risk for psychosis are associated with better clinical outcomes in patients who are already psychotic.
Reversal of alcohol‐induced effects on response control due to changes in proprioceptive information processing
Authors: Stock Ann‐Kathrin , Mückschel Moritz , Beste Christian 
Published: September 2015

AbstractRecent research has drawn interest to the effects of binge drinking on response selection. However, choosing an appropriate response is a complex endeavor that usually requires us to process and integrate several streams of information. One of them is proprioceptive information about the position of limbs. As to now, it has however remained elusive how binge drinking affects the processing of proprioceptive information during response selection and control in healthy individuals. We investigated this question using neurophysiological (EEG) techniques in a response selection task, where we manipulated proprioceptive information. The results show a reversal of alcohol‐induced effects on response control due to changes in proprioceptive information processing. The most likely explanation for this finding is that proprioceptive information does not seem to be properly integrated in response selection processes during acute alcohol intoxication as found in binge drinking. The neurophysiological data suggest that processes related to the preparation and execution of the motor response, but not upstream processes related to conflict monitoring and spatial attentional orienting, underlie these binge drinking‐dependent modulations. Taken together, the results show that even high doses of alcohol have very specific effects within the cascade of neurophysiological processes underlying response control and the integration of proprioceptive information during this process.
Expression profiling of the GBP1 gene as a candidate gene for porcine reproductive and respiratory syndrome resistance
Authors: Gol S. , Estany J. , Fraile L. J. , Pena R. N. 
Published: September 2015

SummaryA genomic region in pig chromosome 4 has been previously associated with higher viraemia levels and lower weight gain following porcine reproduction and respiratory syndrome virus (PRRSV) infection. The region includes the marker WUR1000125, a G>A polymorphism next to a putative polyadenylation site in the 3’‐untranslated region (3’‐UTR) of the guanylate‐binding protein 1, interferon‐induced (GBP1) gene. The protein encoded by GBP1 is a negative regulator of T‐cell responses. We show here that GBP1 expression is lower in liver and tonsils of pigs carrying the WUR1000125‐G allele due to differential allele expression (allele A expression is 1.9‐fold higher than for allele G). We also show that the GBP1 gene has two active polyadenylation signals 421 bp apart and that polyadenylation usage is dependent on the WUR1000125 genotype. The distal site is the most prevalently used in all samples, but the presence of the A allele favours the generation of shorter transcripts from the proximal site. This is confirmed by a differential allele expression study in AG genotype liver and tonsil samples. The interaction between WUR1000125 and other mutations identified in the 5’‐ and 3’‐UTR regions of this gene needs to be studied. In conclusion, our study indicates that the WUR1000125 mutation is associated with changes in the expression of the negative T‐cell regulator GBP1 gene. However, the chromosome 4 locus for PRRSV viraemia levels and weight gain contains a cluster of four other GBP genes that remain to be studied as candidate genes for this QTL.
Anxiety, mood disorders and injection risk behaviors among cocaine users: Results from the COSMO study
Authors: Roy Élise , Jutras‐Aswad Didier , Bertrand Karine , Dufour Magali , Perreault Michel , Laverdière Émélie , Bene‐Tchaleu Fabiola , Bruneau Julie 
Published: September 2015

Background and ObjectivesDespite being common among cocaine users, mental health problems and their relationship with HIV and hepatitis C high risk injection behaviors are poorly documented. This study was undertaken to examine the relationships between mood and anxiety disorders and the sharing of drug injection equipment among cocaine users who inject drugs.MethodsThe sample was drawn from a prospective cohort study and comprised of 387 participants. The outcome of interest was “sharing injection material” in the past 3 months. The presence of mood and anxiety disorders during the past year was assessed using the CIDI questionnaire. Statistical analyses were conducted on baseline data using logistic regression.ResultsMost participants were male (84.5%) and were aged 25 or over (92.2%); 43.0% qualified for an anxiety disorder diagnosis and 29.3% for a mood disorder diagnosis. Participants with anxiety disorders were more likely to share needles (Adjusted Odds Ratio [AOR]: 2.13, 95%CI: 1.15–3.96) and other injection material (AOR: 1.81, 95%CI: 1.12–2.92). No significant association was found between mood disorders and sharing behaviors.Discussion and ConclusionsPrimary anxiety disorders but not mood disorders increases injection risk behaviors among cocaine users. These results bring to light another negative outcome of mental health comorbidity in this vulnerable population.Scientific SignificanceThis study underlines the need to fine‐tune therapeutic approaches targeting specific mental health problems in individuals with cocaine use disorders. Longitudinal studies that assess impulsivity and other correlates of psychiatric disorders are needed to examine underlying mechanisms of high risk injection behaviors in comorbid populations. (Am J Addict 2015;XX:1–7)
Physiology, production and action of progesterone
Authors: Taraborrelli Stefania 
Published: September 2015

AbstractIntroductionThe aim of this article is to review the physiology of progesterone and focus on its physiological actions on tissues such as endometrium, uterus, mammary gland, cardiovascular system, central nervous system and bones. In the last decades, the interest of researchers has focused on the role of progesterone in genomic and non‐genomic receptor mechanisms.Materials and MethodsWe searched PubMed up to December 2014 for publications on progesterone/steroidogenesis.Results and ConclusionsA better understanding of the biological genomic and non‐genomic receptor mechanisms could enable us in the near future to obtain a more comprehensive knowledge of the safety and efficacy of this agent during hormone replacement therapy (natural progesterone), in vitro fertilization (water‐soluble subcutaneous progesterone), in traumatic brain injury, Alzheimer's disease and diabetic neuropathy, even though further clinical studies are needed to prove its usefulness.
Clinical analysis of childhood intermittent exotropia with surgical success at postoperative 2 years
Authors: Kim Hae Jin , Choi Dong Gyu 
Published: September 2015

AbstractPurposeTo analyse the characteristics of children who had maintained the successful outcome at 2 years after surgery for intermittent exotropia.MethodsA retrospective study was performed in 216 patients who had undergone intermittent exotropia surgery and had had at least 2 years of follow‐up. Surgical outcomes were grouped, according to the angle of deviation at postoperative 2 years, as success (esophoria/tropia ≤ 5 prism dioptres (PD) to exophoria/tropia ≤ 10PD), recurrence (exotropia > 10PD or reoperation within 2 years) or overcorrection (esophoria/tropia > 5PD). We investigated various clinical factors for their possible associations with the surgical outcomes.ResultsOf the 216 patients, 128 (59%) were assigned to the success group, and 84 (39%) to the recurrence group. According to a univariate analysis, surgical method and the angle of deviation at the postoperative day 1 showed statistically significant associations with the surgical outcome for intermittent exotropia. However, in the results of a logistic regression test, the angle of deviation at distance at postoperative day 1 was the only factor showing a significant association (p = 0.023).ConclusionsEarly postoperative overcorrection was significantly associated with the maintenance of successful surgical outcome of intermittent exotropia at postoperative 2 years.