bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of reliability and maintenance of liquefaction system on FLNG terminals using Markov modelling
Authors: Gowid Samer , Dixon Roger , Ghani Saud 
Published: February 2014

Purpose
– The purpose of this paper is to optimize system redundancy and maintenance intervals of a propane pre-cooled mixed refrigerant (C3MR) liquefaction process on floating liquefied natural gas (FLNG) export platforms.

Design/methodology/approach
– The reliability modeling is based on the time-dependent Markov approach. Four different system options are studied, with various degree of redundancy. Failures in the liquefaction system usually lead to shutdown the whole LNG production plant. The associated shutdown cost is compared with the cost of introducing redundancy and the cost of onboard maintenance. To ensure a high profitability, a model for maintenance optimization is utilized and applied to the main unit of the C3MR liquefaction system to minimize the onboard maintenance cost.

Findings
– The results indicated that the introduction of a second liquefaction system (as a standby unit) is the best option for liquefaction plant in terms of reliability and cost. This will substantially reduce the unavailability from 14.7 to 2.19 percent of the total operational hours. Based on the presented system configuration, the annual system profit will increase by 180 million USD if the redundancy is implemented on FLNG export ships. The optimum maintenance intervals of major process components are also calculated to minimize the total cost of maintenance.

Originality/value
– The originality of this paper lies within the context in investigating the reliability of the C3MR liquefaction system on LNG floating export terminals using Markov modeling for the first time.
Occasionally open, always an experience: limiting store hours
Authors: Jean Miller Nancy , Yan Ruoh-Nan , Calamari Sage 
Published: February 2014

Purpose
– The study aims to understand the new retail phenomenon of limited store hours. Specifically, the study explores the viability of the retail operation and how the owners of those businesses strategically compensate for fewer hours of operation (e.g. four days a month).

Design/methodology/approach
– A qualitative, multiple-case study was conducted via interviews with six female owners of women's apparel/accessory or home furnishings shops, both independent and franchised operations. The duration of interviews ranged from 45 to 90 minutes. Transcripts were analysed using constant comparative methods.

Findings
– Ten major themes emerged from the interview data. Data supported the three propositions involving connections between lower pricing strategy and limited store hours, consumers' shopping flexibility and limited store hours, and relationship marketing practices and limited store hours.

Research limitations/implications
– Findings are drawn primarily from data provided by female owners of stores selling apparel/accessory or home furnishing products in one region of the USA. Future research is encouraged to examine a variety of retail product categories, level of open store hours and locations, and customers' perspectives about this type of businesses.

Practical implications
– Retail operations with limited hours were deemed cost effective and thus provide entrepreneurial opportunities that allow balance between work and home life.

Originality/value
– Scant research has investigated the phenomenon of businesses that are open limited store hours, though much has been written from the traditional business model in which the retail operation is open nearly around the clock. This exploratory study reveals the feasibility and personal benefits of operating a limited hour shop.
Curating research data: the potential roles of libraries and information professionals
Authors: Jørn Nielsen Hans , Hjørland Birger 
Published: February 2014

Purpose
– A key issue in the literature about research libraries concerns their potential role in managing research data. The aim of this paper is to study the arguments for and against associating this task with libraries and the impact such an association would have on information professionals, and consider the competitors to libraries in this field.

Design/methodology/approach
– This paper considers the nature of data and discusses data typologies, the kinds of data contained within databases and the implications of criticisms of the data-information-knowledge (DIK) hierarchy. It outlines the many competing agencies in the data curation field and describes their relationships to different kinds of data.

Findings
– Many data are organically connected to the activities of large, domain-specific organizations; as such, it might be difficult for research libraries to assume a leadership role in curating data. It seems more likely that the qualifications of information professionals will come to be needed in such organizations and that the functions of research libraries will shift toward giving greater prevalence to their role as specialists in scholarly communication. In some cases, however, research libraries may be the best place to select, keep, organize and use research data. To prepare for this task, research libraries should be actively involved in domain-specific analytic studies of their respective domains.

Originality/value
– This paper offers a theoretical analysis and clarification of the problems of data curating from the perspective of research libraries.
The framing of scientific domains: about UNISIST, domain analysis and art history
Authors: Dam Christensen Hans 
Published: February 2014

Purpose
– By using the UNISIST models this paper argues for the necessity of domain analysis in order to qualify scientific information seeking. The models allow better understanding of communication processes in a scientific domain and they embrace the point that domains are always both unstable over time, and changeable, according to the specific perspective. This understanding is even more important today as numerous digitally generated information tools as well as collaborative and interdisciplinary research are blurring the domain borders. Nevertheless, researchers navigate “intuitively” in “their” specific domains, and UNISIST helps understanding this navigation. The paper aims to discuss these issues.

Design/methodology/approach
– The UNISIST models are tentatively applied to the domain of art history at three stages, respectively two modern, partially overlapping domains, as well as an outline of an art historical domain anno c1820. The juxtapositions are discussed against the backdrop of, among others, poststructuralist concepts such as “power” and “anti-essentialism”

Findings
– The juxtapositions affirm the point already surfacing in the different versions of the UNISIST model, that is, structures of communication change over time as well as according to the agents that are charting them. As such, power in a Foucauldian sense is unavoidable in outlining a domain.

Originality/value
– The UNISIST models are applied to the domain of art history and the article discusses the instability of a scientific domain as well as, at the same time, the significance of framing a domain; an implication which is often neglected in scientific information seeking.
Introduction to the special issue: perspectives on research libraries
Authors: Hjørland Birger , Jørn Nielsen Hans , Høyrup Helene 
Published: February 2014

Purpose
– The aim of this article is to introduce the special issue of Journal of Documentation focusing on perspectives on research libraries.

Design/methodology/approach
– The paper outlines the theme of the issue and its underlying problems.

Findings
– The traditional services of research libraries may diffuse to other kinds of institutions. There is, however, a need for information specialists studying and improving research infrastructures. Future services probably need to be more focused, domain-specific and based on research in information science.

Originality/value
– The introduction is written to assist readers surveying the issue and to share the thoughts of the editors in planning the issue.
Saudi telecom: an example of accelerated internationalization
Authors: Suzanne Amine Lyn , Mostafa Khan Golam 
Published: February 2014

Purpose
– A new case study of accelerated internationalization (AI) shows that in only two years, Saudi telecom (STC) entered markets across the Middle East, Asia, and Africa. Managerial analysis identifies reasons for success while questioning strategic choices and their implications. Theory-driven analysis reviews STC's experience in light of selected theories and frameworks. This case is also intended for teaching purposes. The paper aims to discuss these issues.

Design/methodology/approach
– Responding to Welch et al.'s call, the authors use “interpretive sense-making” and “contextualized explanation” and highlight environmental context in the case study development. The authors review case-based research, explain data collection problems, present managerial and theoretical analyses of the case, discuss the findings relative to the literature, and suggest directions for research.

Findings
– Case analysis reveals STC's focus on global portfolio development as a driver of AI. Theoretical analysis confirms the psychic distance construct and its paradox, as well as the notion of epochs of internationalization while warning that the path and stages models of internationalization are at odds with AI. The authors call for a contingency view of the resource-based view as a function of context.

Research limitations/implications
– Limitations arise from the use of secondary data for case development because direct access to this Saudi company was not feasible.

Practical implications
– AI is popular among wealthy Gulf telecoms ambitious for growth. Regional competition in the Gulf is characterized by copycat and follow-the-leader strategies which preclude elaboration of unique, inimitable or non-substitutable assets, resources or capabilities.

Originality/value
– This innovative approach to case development provides a rich database for probing analyses of managerial and theoretical implications of AI in a Gulf-based company.
Schools and adolescent mental health: education providers or health care providers?
Authors: Hopkins Liza 
Published: February 2014

Purpose
– The issue of mental health amongst students in the senior years of secondary schooling is one which has recently gained traction in mainstream media and public discourse across Australia. The purpose of this paper is to uncover the ways in which schools and other education providers are responding to mental health issues amongst their students both proactively (for prevention) and reactively (for referral and treatment).

Design/methodology/approach
– The project took a qualitative research approach to gathering data from student support staff based in schools and out-of-school learning settings, through a focus group methodology.

Findings
– The project found that despite policy rhetoric and research evidence supporting pro-active, curriculum integrated, early intervention to prevent and avoid mental illness and mental distress amongst secondary school students, most schools still take a reactive, piecemeal approach to prevention of mental illness and provision of mental health care. Individual schools and learning providers are responding to issues in a variety of ways, along a continuum of care.

Research limitations/implications
– The project had a small sample size and restricted geographic area. The divergence in findings between staff from schools in this area and staff from other education providers suggests much more work needs to be done in establishing the implications of bureaucratic sector and school governance on health and wellbeing outcomes.

Originality/value
– This paper begins to explore an under-researched area of school and other education provider responses to rising concern about student mental health.
The workload of a psychiatric clinic at a general hospital in a post conflict area: a model from Iraq
Authors: Younis Maha , Kareem Al Obaidi Abdul , Al-Nuaimi Ahmed 
Published: February 2014

Purpose
– The purpose of this paper is to demonstrate how a psychiatric clinic in a general hospital can function in conflict-ridden Iraq through the easing of patient access to services.

Design/methodology/approach
– The workload of psychiatrists was analyzed for one year (2010) at the psychiatry consultation clinic located in the campus of the Medical City Hospital in Central Baghdad which is also a training center.

Findings
– A total of 2,997 consultations (both adults and children) occurred in 2010. In total, 96 percent were self or family referrals. Patient services were provided by five consulting psychiatrists for a variety of psychiatric disorders. The main therapeutic intervention was the prescription of psychotropics.

Research limitations/implications
– Despite the turbulent circumstances and limited mental health resources in Iraq, this clinic was established as a model to attract patients for consultation and triage management to reduce appointment defaults and delayed care.

Practical implications
– The data can contribute to the planning and development of mental health services in Iraq, contributing to the current body of literature and serving as a model for other conflict areas.

Originality/value
– To best of the understanding this study is the first in the country.
Individual and professional development in the digital age
Authors: Koles Bernadett , Nagy Peter 
Published: February 2014

Purpose– The current paper aims to embrace an interdisciplinary approach to illustrate some of the ways in which virtual worlds expanded upon the individual, social and professional options of employees in organizational settings.Design/methodology/approach– Through an extensive literature review, the paper compiles the latest and most fundamental research capturing relevant concepts from the fields of psychology, pedagogy, management and human-computer interaction.Findings– The current conceptual model incorporates individual- and group-level outcomes associated with virtual world participation, along three primary dimensions, namely self-reference, role experimentation and social capital, accounting for potential variation based on the extent of organizational engagement.Practical implications– The three proposed dimensions elaborated in the current model, including reflexivity/transference, role playing/role identification, and group collaboration/virtual teams, enable organizations to understand the likely outcomes of their virtual presence from the perspective of their structural and social attributes.Originality/value– The proposed conceptual model offers a theoretical base for academics and practitioners to expand upon and develop concrete practical examples and cases.
Long‐pulsed 1064‐nm neodymium:yttrium–aluminum–garnet laser treatment for refractory warts on hands and feet
Authors: Kimura Utako , Takeuchi Kaori , Kinoshita Ayako , Takamori Kenji , Suga Yasushi 
Published: February 2014

AbstractCommon warts (verruca vulgaris) are the most commonly seen benign cutaneous tumors. However, warts in the hands and feet regions often respond poorly to treatment, some are resistant to more than 6 months of treatment with currently available modalities, including cryotherapy, being defined as refractory warts. We investigated the usefulness of long‐pulsed neodymium:yttrium–aluminum–garnet (LP‐Nd:YAG) treatment for refractory warts. The clinical trial was conducted on 20 subjects (11 male, nine female) with a total of 34 lesions (periungual/subungual areas, plantar areas, fingers and/or toes). All the subjects suffered from refractory warts despite conventional treatments for more than 6 months. The patients were administrated up to six sessions of treatment, at intervals of 4 weeks between sessions, with anLP‐Nd:YAGat a spot size of 5 mm, pulse duration of 15 msec and fluence of 150–185 J/cm2. Evaluation of the treatment results at 24 weeks after the initial treatment showed complete clearance of the refractory warts in 56% of the patients. Histological evaluation showed separation of the dermis and epidermis at the basement membrane with coagulated necrosis of the wart tissue in the lower epidermis, as well as coagulation and destruction of the blood vessels in the papillary dermis following the laser irradiation. No scarring, post‐hyperpigmentary changes or serious adverse events were documented. Our preliminary results show thatLP‐Nd:YAGtreatments are safe and effective for refractory warts of hands and feet, causing minimal discomfort, and is a viable treatment alternative.
Root endophytes enhance stress‐tolerance of Cicuta virosa L. growing in a mining pond of eastern Japan
Authors: Nagata Satoshi , Yamaji Keiko , Nomura Nobuhiko , Ishimoto Hiroshi 
Published: February 2014

AbstractCicuta virosa L. plants can grow in a pond subjected to heavy‐metal inputs at the Hitachi mine, eastern Japan. They accumulate heavy‐metal elements, especially high concentrations of zinc (Zn), in their roots. We focused on the role that root bacterial endophytes play in the heavy‐metal uptake of plants and the provision of heavy‐metal tolerance within plants. Our purpose was to clarify the effects of endophytes on: (i) Zn accumulation in C. virosa roots; (ii) growth of C. virosa seedlings; and (iii) heavy‐metal tolerance of C. virosa plants. Root endophytic Pseudomonas putida and Rhodopseudomonas sp., which induced the high production of Zn‐chelating compounds, were selected for the seedling inoculation test. The results of the inoculation test demonstrated that both strains of endophytes increased Zn accumulation in C. virosa roots by solubilizing Zn in the sediment. Both strains also increased the growth of seedlings by possible production of indole‐3‐acetic acid in the plant. The heavy‐metal tolerance of C. virosa seedlings was likely promoted by producing metal‐chelating compounds that detoxify the metals in the plant tissues, and by decreasing the heavy‐metal contents in the tissues via rapid seedling growth. Thus, such mutualistic interactions between plants and bacteria contribute to the persistence of C. virosa in this severe environment.
Identification of sex‐specific molecular markers using restriction site‐associated DNA sequencing
Authors: Gamble Tony , Zarkower David 
Published: February 2014

AbstractA major barrier to evolutionary studies of sex determination and sex chromosomes has been a lack of information on the types of sex‐determining mechanisms that occur among different species. This is particularly problematic in groups where most species lack visually heteromorphic sex chromosomes, such as fish, amphibians and reptiles, because cytogenetic analyses will fail to identify the sex chromosomes in these species. We describe the use of restriction site‐associated DNA (RAD) sequencing, or RAD‐seq, to identify sex‐specific molecular markers and subsequently determine whether a species has male or female heterogamety. To test the accuracy of this technique, we examined the lizard Anolis carolinensis. We performed RAD‐seq on seven male and ten female A. carolinensis and found one male‐specific molecular marker. Anolis carolinensis has previously been shown to possess male heterogamety and the recently published A. carolinensis genome facilitated the characterization of the sex‐specific RAD‐seq marker. We validated the male specificity of the new marker using PCR on additional individuals and also found that it is conserved in some other Anolis species. We discuss the utility of using RAD‐seq to identify sex‐determining mechanisms in other species with cryptic or homomorphic sex chromosomes and the implications for the evolution of male heterogamety in Anolis.
Ultrasound for Routine Lumbar Puncture
Authors: Peterson Michael A. , Pisupati Deepti , Heyming Theodore W. , Abele Jennifer A. , Lewis Roger J. 
Published: February 2014

AbstractObjectivesThe objective was to determine if use of ultrasound (US) by emergency physicians (EPs) to localize spinal landmarks improves the performance of lumbar puncture (LP).MethodsThis was a prospective, randomized, controlled study conducted in a county teaching hospital. Subjects, adults 18 years of age or older who were to receive LPs for routine clinical care in the emergency department (ED), were randomized either to undergo US localization of the puncture site or to have the puncture site determined by palpation of spinal landmarks. Primary outcomes were the number of needle insertion attempts and success of the procedure. Secondary outcomes were pain associated with the procedure, time to perform the procedure, number of traumatic taps, and patient satisfaction with the procedure.ResultsOne‐hundred patients were enrolled in the study, with 50 in each study group. There were no significant differences between the two groups in terms of age, sex, body mass index (BMI), indication for LP, or ease of palpation of landmarks. For both primary outcomes and secondary outcomes there were no significant differences between those undergoing US localization and those with palpation alone.ConclusionsThese data do not suggest any advantage to the routine use of US localization for LP insertion, although further study may be warranted to look for benefit in the difficult to palpate or obese patient subgroups.
Validation of the Confusion Assessment Method for the Intensive Care Unit in Older Emergency Department Patients
Authors: Han Jin H. , Wilson Amanda , Graves Amy J. , Shintani Ayumi , Schnelle John F. , Dittus Robert S. , Powers James S. , Vernon John , Storrow Alan B. , Ely E. Wesley 
Published: February 2014

AbstractObjectivesIn the emergency department (ED), health care providers miss delirium approximately 75% of the time, because they do not routinely screen for this syndrome. The Confusion Assessment Method for the Intensive Care Unit (CAM‐ICU) is a brief (<1 minute) delirium assessment that may be feasible for use in the ED. The study objective was to determine its validity and reliability in older ED patients.MethodsIn this prospective observational cohort study, patients aged 65 years or older were enrolled at an academic, tertiary care ED from July 2009 to February 2012. An emergency physician (EP) and research assistants (RAs) performed the CAM‐ICU. The reference standard for delirium was a comprehensive (~30 minutes) psychiatrist assessment using the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria. All assessments were blinded to each other and were conducted within 3 hours. Sensitivities, specificities, and likelihood ratios were calculated for both the EP and the RAs using the psychiatrist's assessment as the reference standard. Kappa values between the EP and RAs were also calculated to measure reliability.ResultsOf 406 patients enrolled, 50 (12.3%) had delirium. The median age was 73.5 years old (interquartile range [IQR] = 69 to 80 years), 202 (49.8%) were female, and 57 (14.0%) were nonwhite. The CAM‐ICU's sensitivities were 72.0% (95% confidence interval [CI] = 58.3% to 82.5%) and 68.0% (95% CI = 54.2% to 79.2%) in the EP and RAs, respectively. The CAM‐ICU's specificity was 98.6% (95% CI = 96.8% to 99.4%) for both raters. The negative likelihood ratios (LR–) were 0.28 (95% CI = 0.18 to 0.44) and 0.32 (95% CI = 0.22 to 0.49) in the EP and RAs, respectively. The positive likelihood ratios (LR+) were 51.3 (95% CI = 21.1 to 124.5) and 48.4 (95% CI = 19.9 to 118.0), respectively. The kappa between the EP and RAs was 0.92 (95% CI = 0.85 to 0.98), indicating excellent interobserver reliability.ConclusionsIn older ED patients, the CAM‐ICU is highly specific, and a positive test is nearly diagnostic for delirium when used by both the EP and RAs. However, the CAM‐ICU's sensitivity was modest, and a negative test decreased the likelihood of delirium by a small amount. The consequences of a false‐negative CAM‐ICU are unknown and deserve further study.