bluuebunny/crossref_metadata_2025_split huggingface dataset:
Workplace aggression
Authors: Tummers Lars , Brunetto Yvonne , Teo Stephen T.T. 
Published: December 2015

Purpose– Public employees are often confronted with aggression from citizens, managers and colleagues. This is sometimes a function of having a monopoly position of many public organizations. As a result, citizens cannot opt for alternative providers when not served well. This could give rise to aggression. Furthermore, increased budget cuts might give rise to higher stress, workload and consequential aggression at times. This paper analyzes articles on workplace aggression, both the three articles of this special issue and more broadly. The purpose of this paper is to provide researchers with methodological and theoretical future research suggestions for new studies on workplace aggression.Design/methodology/approach– Literature review.Findings– By taking new methodological and theoretical routes, scholars can contribute to the analysis and potential solutions concerning workplace aggression in the public sector. First, the authors advise researchers to move beyond cross-sectional surveys. Instead, diary studies, longitudinal studies and experimental methods (such as randomized control trials) should be increasingly used. Furthermore, scholars can focus more on theory development and testing. Future studies are advised to connect workplace aggression to theoretical models (such as the Job Demands-Resources model), to theories (for instance social learning theory) and to public administration concepts (such as public service motivation and trust in citizens).Originality/value– This is one of the few articles within the public management literature which provides new methodological and theoretical directions for future research on workplace aggression.
Exploring the dynamic contribution behavior of editors in wikis based on time series analysis
Authors: Huang Linghe , Zhu Qinghua , Du Jia Tina , Lee Baozhen 
Published: December 2015

Purpose– Wiki is a new form of information production and organization, which has become one of the most important knowledge resources. In recent years, with the increase of users in wikis, “free rider problem” has been serious. In order to motivate editors to contribute more to a wiki system, it is important to fully understand their contribution behavior. The purpose of this paper is to explore the law of dynamic contribution behavior of editors in wikis.Design/methodology/approach– After developing a dynamic model of contribution behavior, the authors employed both the metrological and clustering methods to process the time series data. The experimental data were collected from Baidu Baike, a renowned Chinese wiki system similar to Wikipedia.Findings– There are four categories of editors: “testers,” “dropouts,” “delayers” and “stickers.” Testers, who contribute the least content and stop contributing rapidly after editing a few articles. After editing a large amount of content, dropouts stop contributing completely. Delayers are the editors who do not stop contributing during the observation time, but they may stop contributing in the near future. Stickers, who keep contributing and edit the most content, are the core editors. In addition, there are significant time-of-day and holiday effects on the number of editors’ contributions.Originality/value– By using the method of time series analysis, some new characteristics of editors and editor types were found. Compared with the former studies, this research also had a larger sample. Therefore, the results are more scientific and representative and can help managers to better optimize the wiki systems and formulate incentive strategies for editors.
The information resources utilization index: a case study in China
Authors: Borjigin Chaolemen , Feng Huiling , Zhang Bin , Zhao Guojun 
Published: December 2015

Purpose
– The purpose of this paper is to introduce a novel method for measuring the utilization of information resources (IRs) in order to provide a complementary index for existing information development indices and to reveal the links between the use of IRs and the readiness of ICT.

Design/methodology/approach
– This research mainly employs three types of research methodologies: literature study was conducted for defining the term of IRs and for finding the common features of the relevant indices; methods to construct composite indicators are used for developing a theoretical framework, selecting variables, imputation of missing data, normalization of data, weighting and aggregation of the novel index; a case study is carried out to provide a typical application for the index and to reveal the underlying links between the use of IRs and the readiness of ICT.

Findings
– This paper for the first time proposes a method to measure the utilization of IRs from a Chinese perspective and provides its theoretical foundations, conceptual frameworks, main steps and curial techniques. Further, correlations between the use of IRs and the readiness of ICT in China between 2009 and 2011 are also descried.

Practical implications
– Measuring the utilization of IRs provides the authorities with an alternative tool to monitor the evolutions a country toward information society. In addition, the novel index presented in this paper can also serve as a method to indentify the gaps among regions in deploying their IRs.

Originality/value
– This is the first paper to introduce a new measure for utilization of IRs and is also the first paper to reveal links between the use of IRs and the readiness of ICT as well as Gross Domestic Product in China.
Analyzing the complementarity of web infrastructure and eInnovation for business value generation
Authors: Popa Simona , Soto-Acosta Pedro , Loukis Euripidis 
Published: December 2015

Purpose
– In recent years, there has been much debate about the value generated by the firms’ investments in information technology (IT). Although literature suggests that technology itself will rarely create superiority, web infrastructure can be critical for knowledge sharing and the formation of virtual teams to execute innovation processes which, in turn, may enhance e-innovation and business value. Building on these antecedents, the purpose of this paper is to explore whether and how web infrastructure and e-innovation can create business value by complementing each other.

Design/methodology/approach
– Based on the resource-based view (RBV) of the firm this paper develops a conceptual model to assess the effects of web infrastructure and e-innovation on business value as well as the complementarity between these resources. To test the associated hypotheses, a regression model was estimated and tested on a large sample of Spanish firms from different industries.

Findings
– The results show that web infrastructure is not positively related to business value, but on the contrary e-innovation has a positive impact on business value. However, support for complementarity between web infrastructure and e-innovation was not found.

Originality/value
– The present study tests the RBV logic, arguing that not all IT resources are source of competitive advantage. In the same vein, this study shows that e-innovation, as it requires combination of IT infrastructure with other unique intangible resources, is much more difficult to imitate, leading to competitive advantages.
Unifying heterogeneous and distributed information about marine species through the top level ontology MarineTLO
Authors: Tzitzikas Yannis , Allocca Carlo , Bekiari Chryssoula , Marketakis Yannis , Fafalios Pavlos , Doerr Martin , Minadakis Nikos , Patkos Theodore , Candela Leonardo 
Published: December 2015

Purpose
– Marine species data are scattered across a series of heterogeneous repositories and information systems. There is no repository that can claim to have all marine species data. Moreover, information on marine species are made available through different formats and protocols. The purpose of this paper is to provide models and methods that allow integrating such information either for publishing it, browsing it or querying it. Aiming at providing a valid and reliable knowledge ground for enabling semantic interoperability of marine species data, in this paper the authors motivate a top level ontology, called MarineTLO and discuss its use for creating MarineTLO-based warehouses.

Design/methodology/approach
– In this paper the authors introduce a set of motivating scenarios that highlight the need of having a top level ontology. Afterwards the authors describe the main data sources (Fisheries Linked Open Data, ECOSCOPE, WoRMS, FishBase and DBpedia) that will be used as a basis for constructing the MarineTLO.

Findings
– The paper discusses about the exploitation of MarineTLO for the construction of a warehouse. Furthermore a series of uses of the MarineTLO-based warehouse is being reported.

Originality/value
– In this paper the authors described the design of a top level ontology for the marine domain able to satisfy the need for maintaining integrated sets of facts about marine species and thus assisting ongoing research on biodiversity. Apart from the ontology the authors also elaborated with the mappings that are required for building integrated warehouses.
Arbuscular mycorrhizal fungi affect plant tolerance and chemical defences to herbivory through different mechanisms
Authors: Tao Leiling , Ahmad Aamina , de Roode Jacobus C. , Hunter Mark D. 
Published: December 2015

Summary

Arbuscular mycorrhizal fungi (AMF) are ubiquitous plant symbionts that affect plant nutrient status, patterns of resource allocation and rates of plant growth. In addition, AMF influence the expression of plant defence, which may affect subsequent interactions between plants and higher trophic levels. Tolerance to herbivory and chemical defence represent two distinct defence strategies of plants, and there is accumulating evidence that AMF can influence each strategy separately. However, investigations on the simultaneous effects of AMF on tolerance and chemical defence mechanisms are lacking.

Using six milkweed (Asclepias) species and three levels of AMF inoculum, we show that plant tolerance to herbivory increases with foliar P concentrations, while both foliar cardenolide concentration and latex exudation (major chemical defences in milkweeds) increase with foliar N concentrations, but decrease with plant growth rate. Additionally, foliar cardenolide concentration increases with foliar P concentration, and latex exudation increases with root biomass. Because AMF have significant effects on all of these traits (foliar N and P concentrations, root biomass and growth rate), AMF can change plant tolerance and chemical defence simultaneously, albeit through different mechanisms.

Synthesis. Overall, plant tolerance and chemical defence to herbivores are affected by AMF through changes in basic plant physiology such as nutrient status, allocation patterns and growth rate, and our study suggests that it may be possible to predict effects of AMF on plant defences through these simple traits.
Predictive factors for positive diagnosis of malignant biliary strictures by transpapillary brush cytology and forceps biopsy
Authors: Naitoh Itaru , Nakazawa Takahiro , Kato Akihisa , Hayashi Kazuki , Miyabe Katsuyuki , Shimizu Shuya , Kondo Hiromu , Nishi Yuji , Yoshida Michihiro , Umemura Shuichiro , Hori Yasuki , Kuno Toshiya , Takahashi Satoru , Ohara Hirotaka , Joh Takashi 
Published: December 2015

ObjectiveThe diagnostic yields of endoscopic transpapillary brush cytology and forceps biopsies for malignant biliary strictures (MBS) remain unclear and predictive factors for diagnosis have not been established. We aimed to clarify the diagnostic yields of both methods and the predictive factorsMethodsWe reviewed 241 patients with biliary strictures who underwent transpapillary brush cytology (n = 202) or forceps biopsy (n = 208) between 2004 and 2014 at a single academic center.ResultsThe sensitivity of forceps biopsy for MBS was significantly higher than that of brush cytology [60.6% (97/160) vs 36.1% (57/158), P < 0.01). The sensitivity of forceps biopsy was significantly higher in diagnosing bile duct cancer than pancreatic cancer [78.8% (52/66) vs 42.4% (28/66), P < 0.01). Multivariate analysis revealed that serum total bilirubin (TB) level (T‐Bil) ≥ 4 mg/dL [odds ratio (OR) 2.506, 95% confidence interval (CI): 1.139–5.495, P = 0.022) was an independent predictor for positive diagnosis by brush cytology, while bile duct cancer (OR 4.926, 95% CI 2.183–11.111, P < 0.001), stricture length ≥ 30 mm (OR 2.941, 95% CI 1.119–7.752, P = 0.029) and TB ≥4 mg/dL (OR 2.252, 95% CI 1.052–4.831, P = 0.037) were significant indicators of a positive diagnosis by forceps biopsy.ConclusionsEndoscopic transpapillary forceps biopsy shows higher sensitivity than that of brush cytology for MBS. Bile duct cancer, stricture length ≥ 30 mm and TB ≥4 mg/dL are good indicators of forceps biopsy.
Longitudinal Trends in U.S. Drug Shortages for Medications Used in Emergency Departments (2001–2014)
Authors: Hawley Kristy L. , Mazer‐Amirshahi Maryann , Zocchi Mark S. , Fox Erin R. , Pines Jesse M. 
Published: December 2015

AbstractObjectivesThis was a study of longitudinal trends in U.S. drug shortages within the scope of emergency medicine (EM) practice from 2001 to 2014.MethodsDrug shortage data from the University of Utah Drug Information Service were analyzed from January 2001 to March 2014. Two board‐certified emergency physicians classified drug shortages based on whether they were within the scope of EM practice, whether they are used for lifesaving interventions or high‐acuity conditions, and whether a substitute for the drug exists for its routine use in emergency care. Trends in the length of shortages for drugs used in EM practice were described using standard descriptive statistics and regression analyses.ResultsOf the 1,798 drug shortages over the approximately 13‐year period (159 months), 610 shortages (33.9%) were classified as within the scope of EM practice. Of those, 321 (52.6%) were for drugs used as lifesaving interventions or for high‐acuity conditions, and of those, 32 (10.0%) were for drugs with no available substitute. The prevalence of EM drug shortages fell from 2002 to 2007; however, between January 2008 and March 2014, the number of EM drug shortages sharply increased by 435% from 23 to 123. From January 2008 to March 2014 shortages in drugs used as a direct lifesaving intervention or for high‐acuity conditions increased 393% from 14 to 69, and shortages for drugs with no available substitute grew 125% from four to nine. Almost half (46.6%) of all EM drug shortages were caused by unknown reasons (the manufacturer did not cite a specific reason when contacted). Infectious disease drugs were the most common EM drugs on shortage, with 148 drug shortages totaling 2,213 months during the study period.ConclusionsDrug shortages impacting emergency care have grown dramatically since 2008. The majority of shortages are for drugs used for lifesaving interventions or high‐acuity conditions. For some, no substitute is available.
Disentangling depression and anxiety in relation to neuroticism, extraversion, suicide, and self‐harm among adult psychiatric inpatients with serious mental illness
Authors: Subica Andrew M. , Allen Jon G. , Frueh B. Christopher , Elhai Jon D. , Fowler J. Christopher 
Published: December 2015

ObjectivesLittle is known about depression–anxiety comorbidity and its association with personality traits and suicide/self‐harm in adult psychiatric inpatients with serious mental illness (SMI), impacting clinical assessment and treatment. This study sought to determine the symptom structure of depression–anxiety comorbidity and its relation to neuroticism, extraversion, and suicide/self‐harm behaviour in this high‐risk population.DesignNine hundred and sixty‐two adults receiving inpatient care at a private psychiatric hospital completed questionnaires at admission.MethodsConfirmatory factor analyses compared a bifactor solution specifying a general distress factor and two specific depression and anxiety factors against unidimensional and correlated factors solutions. The bifactor solutions' factors were subsequently correlated with neuroticism and extraversion subscales and pre‐hospitalization suicide/self‐harm behaviours.ResultsThe bifactor model rendered superior fit to sample data and a robust general factor – accounting for 77.61% of common item variance – providing the first evidence for a tripartite structure of depression and anxiety among adult inpatients. The bifactor solution‐outputted independent general distress, depression, and anxiety factors positively correlated with neuroticism, the personality dimension corresponding to trait negative affectivity. The general distress and depression factors associated with recent self‐harm, but factors showed no associations with prior suicidal behaviour.ConclusionsIn adult psychiatric inpatients, general distress substantially underlies comorbid depression and anxiety symptom variation and may contribute to recent incidence of self‐harm. Transdiagnostic assessments and interventions targeting general distress may temper depression, anxiety, and self‐harm in adult inpatients.Practitioner points

Clinical implications

Depression–anxiety comorbidity symptomology in adult psychiatric inpatients is primarily composed of general distress.

General distress and specific depression are associated with recent self‐harm but not suicidal behaviour.

Assessing and treating general distress rather than depression or anxiety specifically may best mitigate comorbid depression and anxiety, and reduce self‐harm behaviour in this clinical population.

Cautions and limitations

The large sample lacked ethnocultural diversity, and data were cross‐sectional.

The use of brief self‐report measures to assess depression and anxiety may have reduced measurement range.
Quantitative salinity reconstructions of the Baltic Sea during the mid‐Holocene
Authors: Ning Wenxin , Andersson Per S. , Ghosh Anupam , Khan Mansoor , Filipsson Helena L. 
Published: December 2015

We reconstructed the past coastal environment of the Baltic Sea from c. 7300 to 3500 cal. a BP, with a focus on sea surface salinity (SSS). To quantitatively determine the SSS, two methods were employed: measurements of 87Sr/86Sr ratios in mollusc shells (SSSSr) and process length variations of dinoflagellate cysts Operculodinium centrocarpum (SSSpl). The SSSSr was ~6–7 between 6800 and 6400 cal. a BP, similar to modern conditions. Between 6000 and 3900 cal. a BP, SSSSr was consistently higher, ranging between ~9 and 13. Microfossils sensitive to salinity variations, such as Radiosperma corbiforum and Spiniferites spp., support the SSSSr estimate. In comparison with the SSSSr, the SSSpl values were consistently higher, with an average of ~14. We suggest SSSpl tend to overestimate salinity and are not as reliable as SSSSr. A multi‐proxy approach, including analysis of microfossil, organic carbon content, C/N ratios and grain‐size, allowed for a division of the study period into three zones (Zones I–III). Zone I (7300–6400 cal. a BP) is characterized by relatively O. centrocarpum and R. corbiforum concentrations, silt contents and C/N ratios, corresponding to the regional Littorina transgression maximum. Zone II (6400–3900 cal. a BP) is characterized by increased Spiniferites spp. and decreased R. corbiforum abundances, and by lowered C/N ratios and silt contents relative to Zone I. Zone III (3900–3500 cal. a BP) represents the start of the Post‐Littorina Sea phase, indicating a shift to the modern Baltic Sea phase with decreased salinity.
A tree‐ring width based drought reconstruction for southeastern China: links to Pacific Ocean climate variability
Authors: Chen Feng , Yu Shulong , Yuan Yujiang , Wang Huiqin , Gagen Mary 
Published: December 2015

We present a drought reconstruction for southeastern China based on a tree‐ring width chronology of Cryptomeria fortunei developed from two sampling sites in central Fujian. A reconstruction of July–February drought variability, spanning AD 1855–2011, was developed by calibrating total tree‐ring width data with the self‐calibrating Palmer drought severity index (scPDSI). The reconstruction was verified against an independent data set, and accounts for 36% of the actual scPDSI variance during the period 1955–2011. Relatively dry intervals were reconstructed between AD 1859–1880, 1899–1911, 1927–1933, 1946–1959, 1964–1970 and 1987–1997. Relatively wet conditions prevailed during 1855–1858, 1881–1898, 1912–1926, 1934–1945, 1960–1963, 1971–1986 and 1998–2011. Comparisons between our scPDSI reconstruction and a moisture‐sensitive tree‐ring width record from Vietnam revealed consistencies between the two data sets, suggesting similar drought regimes. Spectral peaks of 2.2–6.4 years may be indicative of El Niño‐Southern Oscillation (ENSO) activity, as also suggested by the significant correlations with sea surface temperatures (SSTs) in the eastern equatorial and southeastern Pacific Ocean and an extreme event analysis. The analysis of links between our scPDSI reconstruction and the large‐scale regional climatic variation shows that there is a relationship between regional drought variation and East Asian summer monsoon (EASM) intensity.
Changes in bone mineral density and bone turnover in patients on ‘drug holiday’ following bisphosphonate therapy: real‐life clinic setting
Authors: Roberts J. , Castro C. , Moore A.E.B. , Fogelman I. , Hampson G. 
Published: December 2015

SummaryObjectivesTreatment discontinuation after long‐term bisphosphonate (BP), termed a ‘drug holiday’, has been proposed to reduce the risk of BP‐associated complications. The duration of treatment cessation remains unclear. Changes in bone mineral density (BMD), bone turnover markers (BTMs) and their relationship with FRAX were assessed to help determine the optimum length of a ‘drug holiday’.MethodsA retrospective analysis of 134 patients (13M, 121F) aged [mean (SD)] 68·4 (8·2) years who discontinued BPs after treatment for 5·9 (3·0) years for osteoporosis was undertaken. BMD at the lumbar spine (LS), total hip (TH), and femoral neck (FN) and biochemical parameters including serum 25 (OH) vitamin D, bone turnover markers (plasma CTX, P1NP) and FRAX scores were determined at discontinuation, 12–18 months and 24–30 months off treatment.ResultsBMD decreased significantly at the LS [% change mean (SD): −0·94 (3·6), P = 0·008], TH [−1·4 (2·4), P < 0·001] and FN [−1·8 (4·4), P < 0·001] after treatment discontinuation for 12–18 months. In the subgroup who remained off treatment for 24–30 months, a progressive decline in BMD was seen at the TH and FN with total % decrease of −2·52 (3·5) and −2·7 (4·76), P < 0·001, respectively. CTX and P1NP increased significantly at 12–18 months after discontinuation [% change CTX: 95 (88), P < 0·001, P1NP: 88 (73), P < 0·001]. FRAX scores were significant predictors of % change in BMD at the FN (P < 0·05), independently of bone turnover and vitamin D status. In summary, our data show that following a ‘drug holiday’, the use of DEXA scans, BTMs and FRAX may help guide when to resume treatment.