bluuebunny/crossref_metadata_2025_split huggingface dataset:
SLIM: a sliding linear model for estimating the proportion of true null hypotheses in datasets with dependence structures
Authors: Wang Hong-Qiang , Tuominen Lindsey K. , Tsai Chung-Jui 
Published: November 2010

AbstractMotivation: The pre-estimate of the proportion of null hypotheses (π0) plays a critical role in controlling false discovery rate (FDR) in multiple hypothesis testing. However, hidden complex dependence structures of many genomics datasets distort the distribution of p-values, rendering existing π0 estimators less effective.Results: From the basic non-linear model of the q-value method, we developed a simple linear algorithm to probe local dependence blocks. We uncovered a non-static relationship between tests' p-values and their corresponding q-values that is influenced by data structure and π0. Using an optimization framework, these findings were exploited to devise a Sliding Linear Model (SLIM) to more reliably estimate π0 under dependence. When tested on a number of simulation datasets with varying data dependence structures and on microarray data, SLIM was found to be robust in estimating π0 against dependence. The accuracy of its π0 estimation suggests that SLIM can be used as a stand-alone tool for prediction of significant tests.Availability: The R code of the proposed method is available at http://aspendb.uga.edu/downloads for academic use.Contact: cjtsai@warnell.edu.eduSupplementary information: Supplementary data are available at Bioinformatics online.
The rocky road from research to operations for satellite ocean-colour data in fishery management
Authors: Wilson Cara 
Published: November 2010

AbstractWilson, C. 2011. The rocky road from research to operations for satellite ocean-colour data in fishery management. – ICES Journal of Marine Science, 68: 677–686. The aim of the SAFARI project is to accelerate the assimilation of earth-observation data into fisheries research and management by facilitating the application of rapidly evolving satellite technology. This assumes that these data will be available in future. However, for ocean-colour data, that assumption may not hold because of possible gaps in data continuity. Of the many types of satellite data, ocean colour is the most important to fisheries, because it is the only biological measurement. However, current ocean-colour sensors are all operating beyond their planned design life, and there are potential problems with future launches. Although the research community is aware of the value of satellite ocean-colour data, advocacy from the operational community, fishery management in particular, has been lacking. In the United States, the absence of an easily identifiable operational need for ocean-colour data is largely responsible for the likely gap in data continuity. A range of current and potential operational uses of ocean-colour data, some reasons why these data have been underutilized in fishery management, and what can be done to mitigate them are discussed and outlined.
A two-layer approach to modelling the transformation of dilute pyroclastic currents into dense pyroclastic flows
Authors: Doyle Emma E. , Hogg Andrew J. , Mader Heidy M. 
Published: November 2010

Most models of volcanic ash flows assume that the flow is either dilute or dense, with dynamics dominated by fluid turbulence or particle collisions, respectively. However, most naturally occurring flows feature both of these end members. To this end, a two-layer model for the formation of dense pyroclastic basal flows from dilute, collapsing volcanic eruption columns is presented. Depth-averaged, constant temperature, continuum conservation equations to describe the collapsing dilute current are derived. A dense basal flow is then considered to form at the base of this current owing to sedimentation of particles and is modelled as a granular avalanche of constant density. We present results which show that the two-layer model can predict much larger maximum runouts than would be expected from single-layer models, based on either dilute or dense conditions, as the dilute surge can outrun the dense granular flow, or vice versa, depending on conditions.
The GDC1 Gene Encodes a Novel Ankyrin Domain-Containing Protein That Is Essential for Grana Formation in Arabidopsis
Authors: Cui Yong-Lan , Jia Qi-Shi , Yin Qian-Qian , Lin Guan-Nan , Kong Meng-Meng , Yang Zhong-Nan 
Published: November 2010

Abstract
In land-plant chloroplasts, the grana play multiple roles in photosynthesis, including the potential increase of photosynthetic capacity in light and enhancement of photochemical efficiency in shade. However, the molecular mechanisms of grana formation remain elusive. Here, we report a novel gene, Grana-Deficient Chloroplast1 (GDC1), required for chloroplast grana formation in Arabidopsis (Arabidopsis thaliana). In the chloroplast of knockout mutant gdc1-3, only stromal thylakoids were observed, and they could not stack together to form appressed grana. The mutant exhibited seedling lethality with pale green cotyledons and true leaves. Further blue native-polyacrylamide gel electrophoresis analysis indicated that the trimeric forms of Light-Harvesting Complex II (LHCII) were scarcely detected in gdc1-3, confirming previous reports that the LHCII trimer is essential for grana formation. The Lhcb1 protein, the major component of the LHCIIb trimer, was substantially reduced, and another LHCIIb trimer component, Lhcb2, was slightly reduced in the gdc1-3 mutant, although their transcription levels were not altered in the mutant. This suggests that defective LHCII trimer formation in gdc1-3 is due to low amounts of Lhcb1 and Lhcb2. GDC1 encodes a chloroplast protein with an ankyrin domain within the carboxyl terminus. It was highly expressed in Arabidopsis green tissues, and its expression was induced by photosignaling pathways. Immunoblot analysis of the GDC1-green fluorescent protein (GFP) fusion protein in 35S::GDC1-GFP transgenic plants with GFP antibody indicates that GDC1 is associated with an approximately 440-kD thylakoid protein complex instead of the LHCII trimer. This shows that GDC1 may play an indirect role in LHCII trimerization during grana formation.
Financial reform and transition in China: a study of the evolution of banks in rural China
Authors: Shen Minggao , Huang Jikun , Zhang Linxiu , Rozelle Scott 
Published: November 2010

PurposeThis paper seeks to understand the evolution of financial intermediation in the course of China's economic transition.Design/methodology/approachThe research is based on a unique data set collected by the authors and other collaborators from a 1998 survey of financial institutions, enterprises, and government officials in southern China.FindingsBased on an empirical investigation of rural financial reforms, it is argued that China's two‐decade long financial reform was a gradual process that accommodates reforms in other sectors and responds to changing policy goals and the economic and institutional environment in which financial institutions operate. Although using standard measures of financial system performance may cast doubt on the effectiveness of China's rural banking system, when one understands the different roles that it has been asked to play, it can be argued that it has not operated so poorly.Research limitations/implicationsIn conclusion, it is found that China's rural economic environment is still changing. If the system continues to change in the future, responding to pressures in the economy, further financial reforms will almost certainly emerge in the coming years.Practical implicationsThese findings, although primarily from the 1980s and 1990s, are still helpful in understanding the reform process that is currently ongoing.Social implicationsThis paper will help readers make sense of agricultural financial reforms and will allow for more discourse over what has been accomplished and what still is needed.Originality/valueThis is the first manuscript to comprehensively put China's rural financial reforms into the context of modern economic analysis, explaining why China's government proceeded as they did and why the reforms have unfolded in such a stop and start manner.
Assessing organically: turning an assignment into an assessment
Authors: Perruso Brown Carol , Kingsley‐Wilson Barbara 
Published: November 2010

PurposeThis paper aims to report on how a close collaboration between librarian and instructor made it possible for an existing course assignment to organically evolve into an information literacy assessment, overcoming some of the impediments educators confront in assessing student learning. In addition, the paper seeks to discuss how assessment with realistic scenarios requiring actual research helped to highlight deficiencies in skills and critical thinking, a method known as “authentic assessment”. Results from a pilot and the formal assessment are included.Design/methodology/approachA six‐question pre‐ and post‐test “authentic assessment” was piloted with 60 students, then administered to 43 students. Other journalism instructors and librarians reviewed the questions for validity. A detailed scoring rubric was used, with the authors reviewing each other's work for reliability.FindingsOf students completing both tests, 80 percent showed an average improvement of 47 percent, and average scores increased on five of the six questions. The assessment tool, which addresses most learning outcomes for the course, appears to be a useful gauge of information literacy for journalism students.Research limitations/implicationsThe reliability of the instrument needs to be tested. Also, modifying questions between pre‐ and post‐test, to prevent copy‐and‐paste answers, requires care to assure similar levels of difficulty.Originality/valueWhile there are many case studies of collaboration in information‐literacy instruction and of assessment performed by librarians, there are few examples of assessments jointly developed by librarians and course faculty, and fewer still “authentic assessments” using measures requiring real‐world research because of the effort involved. Additionally, the paper finds no examples of what is described as “organic assessment”, wherein an existing course assignment, if developed to demonstrate student learning, was adapted to become an assessment tool.
The audit consideration of environmental matters
Authors: Chiang Christina , Northcott Deryl 
Published: November 2010

PurposeThis paper seeks to examine the responses of New Zealand auditors to the promulgation of Audit Guidance Statement (AGS) 1010: The Consideration of Environmental Matters in the Audit of Financial Statements and the consequent impact on audit practice.Design/methodology/approachThis study adopts an interpretive methodology. It draws on dual research methods – interviews with 27 senior auditors, and a critical analysis of AGS‐1010. Legitimacy theory informs the interpretation of the findings.FindingsThe findings point to significant gaps in the guidance AGS‐1010 provides and reveal its limited impact on practice, which seems to reflect “business as usual” in regard to the audit of environmental matters. However, AGS‐1010 does appear to serve a ceremonial, legitimating role by supporting practising auditors' efforts to appear responsive to concerns about this emergent accountability issue.Research limitations/implicationsThe findings highlight the practical challenges that exist in the audit of environmental matters, and point to the need to scrutinise the role of auditors in providing opinions on the financial reports of firms whose activities give rise to material environmental matters.Practical implicationsThe findings suggest points for reflection for a profession that relies on maintaining its societal legitimacy, but which is failing to pursue or achieve best practice in the audit of environmental matters.Originality/valueThis paper presents a novel critique of AGS‐1010 and a first examination of how New Zealand auditors are dealing with environmental matters in light of this professional promulgation. The findings contribute to the international literature by exploring the relatively neglected role of the auditor in advancing the “greening of accounting”.
Buyer supplier perspectives on supply chain relationships
Authors: Ambrose Eamonn , Marshall Donna , Lynch Daniel 
Published: November 2010

PurposeThe paper aims to employ transaction cost theory and social exchange theory to compare how buyers and suppliers perceive relationship mechanisms. The paper also explains the antecedents and dynamics of relationship performance by comparing buyer and supplier perceptions of the same relationships. The paper specifically focuses on the issue of relationship success and test the hypothesis that the antecedents of perceived relationship success for buyers differ from those of suppliers within supply chain relationships.Design/methodology/approachThe paper is based on a study of the supply chain relationships of a major ICT company where matched pairs of buyers and suppliers were surveyed on the nature of their relationships. The survey instrument drew from previously published constructs on key relationship dimensions such as trust, commitment, power, communication, uncertainty and performance. A series of nested measurement models were then developed and tested for the two groups – buyers and suppliers.FindingsThe study found that buyers and suppliers have significantly different perceptions of their relationships across a range of dimensions. In addition, the antecedents of relationship success for both groups bear little similarity, thus supporting our hypotheses.Originality/valueThe paper directly compares transaction cost theory and social exchange theory and finds that both are useful in explaining success in buyer‐supplier relationships. Methodologically, the paper is unique due to the combination of over 100 matched buyer‐supplier dyads with a comprehensive survey of relationship constructs. Given the use of both transaction cost and social exchange theory, the breadth of the dimensions studied, the unique access to practitioners gained and the nature of the matched‐pair data, this paper is an important contribution to the literature on relationship management. Furthermore, the findings indicate a rich seam of potential future research topics.
Using data mining to improve digital library services
Authors: Kovacevic Ana , Devedzic Vladan , Pocajt Viktor 
Published: November 2010

PurposeThis paper aims to propose a solution for recommending digital library services based on data mining techniques (clustering and predictive classification).Design/methodology/approachData mining techniques are used to recommend digital library services based on the user's profile and search history. First, similar users were clustered together, based on their profiles and search behavior. Then predictive classification for recommending appropriate services to them was used. It has been shown that users in the same cluster have a high probability of accepting similar services or their patterns.FindingsThe results indicate that k‐means clustering and Naive Bayes classification may be used to improve the accuracy of service recommendation. The overall accuracy is satisfying, while average accuracy depends on the specific service. The results were better for frequently occurring services.Research limitations/implicationsDatasets were used from the KOBSON digital library. Only clustering and predictive classification was applied. If the correlation between the service and the institution were higher, it would have better accuracy.Originality/valueThe paper applied different and efficient data mining techniques for clustering digital library users based on their profiles and their search behavior, i.e. users' interaction with library services, and obtain user patterns with respect to the library services they use. A digital library may apply this approach to offer appropriate services to new users more easily. The recommendations will be based on library items that similar users have already found useful.
RF‐MEMS switches on a printed circuit board platform
Authors: Lian Keryn , Eliacin Manes , Lempkowski Robert , Chason Marc , O'Keefe Matthew , Drewniak James 
Published: November 2010

PurposeThe purpose of this paper is to present a new class of printed circuit board (PCB)‐based, radio frequency micro‐electro‐mechanical systems (RF‐MEMS) switches and to describe the packaging method and evaluate performance.Design/methodology/approachTraditional PCB materials and processes were combined with photolithographic high‐density interconnect (HDI) and MEMS to form 3D high‐performance RF switches.FindingsA new type of MEMS RF switch has been developed on a PCB platform. Using processes analogous to those used for silicon MEMS, PCB, and HDI technologies were utilized to fabricate these 3D structures. The PCB‐based microstructures are “mil‐scale” rather than the “micro‐scale” of silicon MEMs. A co‐fabrication packaging method for the MEMS RF switch was also developed. The PCB‐based MEMS switches have demonstrated excellent RF performance and “hot‐switching” RF power‐handling capability. PCB‐based MEMS RF switches have the advantages of low cost and amenability to scale‐up for a high degree of integration.Research limitations/implicationsFurther development on photo imageable dielectric materials will enable this technology to improve yield and processability.Originality/valueThe paper describes the development of PCB‐based MEMS RF switches. These elements will enable new applications and enhance the functionality of PCBs. They are also more amenable to system integration compared with silicon MEMS.
Retail logistics in the UK: past, present and future
Authors: Fernie John , Sparks Leigh , McKinnon Alan C. 
Published: November 2010

PurposeThe purpose of this paper is to provide an overview of the logistical transformation of British retailing over the last three decades and to discuss likely challenges that face logistics managers in the future.Design/methodology/approachReviews the key works on retail logistics, including the research undertaken by the authors over the last 20 years.FindingsIllustrates how retailers have control of the supply chain in the UK, drawing upon examples from both the grocery and fashion sectors. Challenges for the future include macro‐environment issues such as climate change and recession in addition to improvements in existing in operations with regard to e‐fulfilment and implementation of technologies such as RFID.Originality/valueThis paper provides one of the few contributions to appraise the research undertaken on retail logistics in the UK over the last 20‐30 years.
Research in management accounting innovations
Authors: Haiza Muhammad Zawawi Nur , Hoque Zahirul 
Published: November 2010

PurposeThe purpose of paper is to present a review of the literature on management accounting innovations (MAIs). Specifically, it explores recent developments in research on MAIs and offers suggestions for future research. The review differs from existing reviews by its specific focus on MAIs and the recent time period covered. In this paper, MAIs refer to the adoption of “newer” or modern forms of management accounting systems such as activity‐based costing (ABC), activity‐based management, time‐driven ABC, target costing, and balanced scorecards.Design/methodology/approachThe paper presents a review of findings from journal articles published in 22 notable accounting journals.FindingsThe review finds that research on MAIs has intensified during the period 2000‐2008, with the main focus on exploring the extent to which a host of organizational and environmental factors influence the implementation and use of MAIs in organizations. In addition, research on MAIs indicates the dominant use of sociological theories and increasing use of empirical/field studies.Research limitations/implicationsA literature review using a given set of accounting journals and search words used to identify relevant articles may overlook literature within the scope of the review. The paper concludes the importance of more research on MAIs by offering some directions for future research.Originality/valueThe paper's specific focus on MAIs and the recent time period offer the reader useful insights on management accounting research and theory.
Eliciting requirements for an inter‐company cooperative information system
Authors: Bendjenna Hakim , Zarour Nacer‐eddine , Charrel Pierre‐Jean 
Published: November 2010

PurposeThe requirements engineering (RE) process constitutes the earliest phase of the information system development life cycle. Requirements elicitation is considered as one of the most critical activities of this phase. Moreover, requirements elicitation is still a challenge, especially in the distributed environment of so‐called inter‐company cooperative information systems (ICISs). The purpose of this paper is to propose a methodology to elicit requirements for an ICIS.Design/methodology/approachAn analytical research approach was conducted. The current RE approaches, which are based either on goal, scenario or viewpoint were evaluated. Then the role of the elicitation technique selection step within the requirements elicitation process was examined. Finally the factors that affect this step in a distributed environment were studied. An example from the textile industry is used to illustrate the applicability of the proposed methodology.FindingsThough existing requirements elicitation approaches based either on goal, scenario or viewpoint are effective techniques, they do not fit exactly to a cooperative distributed environment: more issues are created by inadequate communication, time difference between sites, cultural, language and characteristics diversity of stakeholders which affect the elicitation technique selection step and thus the requirements elicitation process. In order to tackle these issues, this paper presents a methodology called MAMIE (from Macro‐ to Micro‐level requirements Elicitation) to elicit requirements for an ICIS. A prototype tool has been developed to support the operation of the methodology.Research limitations/implicationsThe major limitation of the paper is that has not yet been tested in an existing organization.Practical implicationsTo provide the analyst with well‐defined steps in order to elicit requirements of an ICIS. To understand the role of the elicitation technique selection step within the requirements elicitation process and identifying the factors which have an impact on this step. To select an appropriate elicitation technique according to these factors.Originality/valueMAMIE integrates the three notions of goal, scenario and viewpoint to elicit requirements for an ICIS. The paper argues that these concepts may be used simultaneously and in a complementary way to improve the requirements elicitation process. Moreover, in order to increase the quality of the elicited requirements and thus the quality of the system‐to‐be, selecting an elicitation technique in MAMIE is not based on personal preferences but on situation assessment.