261 research outputs found
Cost-effectiveness of glaucoma screening in cataract camps versus opportunistic and passive screening in urban India: A study protocol [version 3; peer review: 2 approved]
India has an estimated 12 million people affected with glaucoma; however, no organised screening programme exists. Cases are usually detected opportunistically. This study documents the protocol for detecting glaucoma in suspects in cataract camps conducted by Shroff Charity Eye Hospital in North India. We report a cost-effectiveness alongside prospective study design of patients attending cataract camps where glaucoma screening will be integrated. The eligible population for glaucoma screening is non-cataract patients. Patients will undergo glaucoma screening by a trained optometrist using a pre-determined glaucoma screening algorithm. Specific diagnostic cut-off points will be used to identify glaucoma suspects. Suspected patients will be referred to the main hospital for confirmatory diagnosis and treatment. This group will be compared to a cohort of patients arriving from cataract camps conducted by the institute in similar areas and undergoing examination in the hospital. The third arm of the study includes patients arriving directly to the hospital for the first time. Cost data will be captured from both the screening components of cataract-only and glaucoma screening-integrated camps for screening invitation and screening costs. For all three arms, examination and treatment costs will be captured using bottom-up costing methods at the hospital. Detection rates will be calculated by dividing the number of new cases identified during the study by total number of cases examined. Median, average and range of costs across the three arms will be calculated for cost comparisons. Finally, cost-effectiveness analysis will be conducted comparing cost per case detected across the three arms from a quasi-societal perspective with a time horizon of 1 year. Ethics approval for the study has been obtained from the institutional ethics committee of the hospital. The study protocol will be useful for researchers and practitioners for conducting similar economic evaluation studies in their context
ApoE elevation is associated with the persistence of psychotic experiences from age 12 to age 18: Evidence from the ALSPAC birth cohort
Apolipoproteins, which play important roles in lipid metabolism, innate immunity and synaptic signalling, have been implicated in first episode psychosis and schizophrenia. This is the first study to investigate plasma apolipoprotein expression in children with psychotic experiences that persist into adulthood. Here, using semi-targeted proteomic analysis we compared plasma apolipoprotein expression levels in age 12 subjects who reported psychotic experiences at both age 12 and age 18 (n = 37) with age-matched subjects who only experienced psychotic experiences (PEs) at age 12 (n = 38). Participants were recruited from the UK Avon Longitudinal Study of Parents and Children (ALSPAC) cohort who participated in psychiatric assessment interviews at ages 12 and 18. We identified apoE, a protein with significant regulatory activity on cholesterol metabolism in the brain, to be significantly up regulated (p < 0.003) in those with persistent psychotic experiences. We confirmed this finding in these samples using ELISA. Our findings indicate elevated plasma apoE in age 12 children who experience PEs is associated with persistence psychotic experiences
Blood-Based Protein Changes in Childhood Are Associated With increased risk for later psychotic disorder: evidence from a nested case–control study of the ALSPAC Longitudinal Birth Cohort
The identification of early biological changes associated with the psychotic disorder (PD) is important as it may provide clues to the underlying pathophysiological mechanisms. We undertook the first proteomic profiling of blood plasma samples of children who later develop a PD. Participants were recruited from the UK Avon Longitudinal Study of Parents and Children (ALSPAC) cohort who also participated in psychiatric assessment interviews at age 18. Protein expression levels at age 11 were compared between individuals who developed PD at age 18 (n = 37) with population-based age-matched controls (n = 38). Sixty out of 181 plasma proteins profiled were found to be differentially expressed (P < .05) in children with an outcome of the PD. Thirty-four of these proteins were found to be differentially expressed following correction for multiple comparisons. Pathway analysis implicated the complement and coagulation cascade. A second, targeted proteomic approach was used to verify these findings in age 11 plasma from subjects who reported psychotic experiences at age 18 (n = 40) in comparison to age-matched controls (n = 66). Our findings indicate that the complement and coagulation system is dysregulated in the blood during childhood before the development of the PD
What are the competences in information system required by managers? Curriculum development for management and public administration degrees
[EN] This paper analyzes the competences required by executives to manage information
system, and consequently, the competences that must define the information system
subjects in non-technical degrees, degrees, such as Public Administration or Business
Management. This work reviews the literature about business managers competences
on Information Technologies (IT) and compares the theory with the traditional body
of knowledge about information systems taught at business schools. By analyzing the
executives function, their role in the information system management, and, above,
all the importance of their decisions in the effective integration of IT in business
processes, this work proposes specific development in seven knowledge areas that
facilitate the acquisition of these types of executive competencesDevece Carañana, CA.; Peris-Ortiz, M.; Rueda Armengot, C. (2016). What are the competences in information system required by managers? Curriculum development for management and public administration degrees. Technology, Innovation and Education. 2(10):1-9. doi:10.1186/s40660-016-0016-2S19210Bassellier G, Benbasat I (2004) Business competence of IT professionals: conceptual development and influence on IT-business partnerships. MIS Q 28(4):673–694Bassellier G, Reich BH, Benbasat I (2001) Information technology competence of business managers: a definition and research model. J Manag Inf Syst 17(4):159–182Bassellier G, Benbasat I, Reich BH (2003) The influence of business managers’ IT competence on championing IT. Inf Syst Res 14(4):317–336Bettiol M, Di Maria E, Finotto V (2012) Marketing in SMEs: the role of entrepreneurial sensemaking. Int Entrep Manag J 8(2):223–248Boyatzis RE (1982) The competent manager a model for effective performance. Wiley, New YorkBoynton AC, Zmud RW, Jacobs GC (1994) The influence of IT management practice on IT use in large organizations. MIS Q 18(3):299–318Broadbent M, Weill P (1993) Improving business and information strategy alignment: learning from the banking industry. IBM Syst J 32(1):162–179Brown CV, Magill SL (1994) Alignment of the IS functions with the enterprise: toward a model of antecedents. MIS Q 18(4):371–403Busch EA, Jarvenpaa SL, Tractinsky N, Glick WH (1991) External versus internal perspectives in determining a firm’s progressive use of information technology. Proceedings of the 12th International Conference on Information Systems, New York, 1991:239–250Camisón C (2002) On the relevance of industry, competitive scope, strategic group, size and distinctive competences construct on explaining of organizational performance. Universitat jaume I, Castellón (Working Paper 1–02,Research Group on Strategy, Knowledge Management and Organizational Learning)Castanias RP, Helfat CE (1991) Managerial resources and rents. J Manag 17:155–171Cegarra-Navarro JG, Sánchez-Vidal ME, Cegarra-Leiva D (2011) Balancing exploration and exploitation of knowledge through an unlearning context: an empirical investigation in SMEs. Manag Decis 49(7):1099–1119Chan YE, Reich BH (2007) IT alignment: what have we learned? J Inf Tech 22:297–315Chan YE, Sabherwal R, Thatcher JB (2006) Antecedents and outcomes of strategic IS alignment: an empirical investigation. IEEE Trans Eng Manag 51(3):27–47Croteau AM, Bergeron F (2001) An information technology trilogy: business strategy, technological deployment and organizational performance. J Strateg Inf Syst 10:77–99Crowston K, Myers MD (2004) Information technology and the transformation of industries: three research perspectives. J Strateg Inf Syst 13(1):5–28Dent-Micallef A, Powell T (1998) Technologies de l’information: nécessités stratégiques ou sources d’avantage concurrentiel? Une étude empirique dans le secteur de la distribution aux Etats-Unis. Rev Can Sci Adm 15(1):39–64Devece C (2013) The value of business managers’ ‘information technology’ competence. Serv Ind J 33(7/8):720–733Doll WJ, Torkzadeh G (1987) The relationship of MIS steering committee to size of firm and formalization of mis planning. Commun ACM 30(11):972–978Earl MJ (1996) The risks of outsourcing IT. Sloan Manag Rev 37(3):26–32European Commission (2015) ECTS Users’ Guide 2015. Publications Office of the European Union, Luxembourg. doi: 10.2766/87592Hambrick DC, Brandon G (1988) Executive values. In: Hambrick DC (ed) The executive effect: concepts and methods for studying top managers. JAI Press, GreenwichHambrick DC, Mason PA (1984) Upper echelons: the organization as a reflection of its top managers. Acad Manag Rev 9(2):193–206Hotho S, Champion K (2011) Small businesses in the new creative industries: innovation as a people management challenge. Manag Decis 49(1):29–54Jarvenpaa SL, Ives B (1991) Executive involment and participation in the management of IT. MIS Q 15(2):52–69Lado AA, Wilson MC (1994) Human resource systems and sustained competitive advantage: a competency-based perspective. Acad Manag Rev 19(4):699–727Lado AA, Boyd NG, Wright P (1992) A competency-based model of sustainable competitive advantage: toward a conceptual integration. J Manag 18(1):77–91Lederer AL, Mendelow AL (1988) Information systems planning: top management takes control. Bus Horiz 31(3):73–78Oh W, Pinsonneault A (2007) On the assessment of the strategic value of information technologies: conceptual and analytical approaches. MIS Q 31(2):239–265Osbaldeston M, Barham K (1992) Using management development for competitive advantage. Long Range Plan 25(6):18–24Penrose ET (1959) The theory of the growth of the firm. Basil Blackwell, OxfordReich BH, Benbasat I (1996) Measuring the linkage between business and information technology objectives. MIS Q 20(1):55–81Reich BH, Benbasat I (2000) Factors that influence the social dimension of alignment between business and information techonology objectives. MIS Q 24(1):81–113Riegner C (2007) Word of mouth on the web: the impact of web 2.0 on consumer purchase decisions. J Advert Res 47(4):436–447Rockart JF (1988) The lines takes the leadership. Sloan Manag Rev 29(4):57–64Sabherwal R, Chan YE (2001) Alignment between business and IS strategies: a study of prospectors, analyzers, and defenders. Inf Syst Res 12(1):11–33Sanchez R, Heene A, Thomas H (1996) Towards the theory and practice of competence-based competition. In: Sanchez R, Heene A, Thomas H (eds) Dynamics of competence-based competition: theory and practice in the new strategic management. Elsevier, London, pp 1–35Senge PM (1990) The fifth discipline: the age and practice of the learning organization. Century Business, LondonSiegel DS, Renko M (2012) The role of market and technological knowledge in recognizing entrepreneurial opportunities. Manag Decis 50(5):797–816Stare M, Jaklic A, Kotnik P (2006) Exploiting ICT potential in service firms in transition economies. Serv Ind J 26(3):287–302Swanson EB (1974) Management information systems: appreciation and involvement. Manag Sci 21(2):178–188Torkzadeh G, Xia W (1992) Managing telecommunications by steering committee. MIS Q 16(2):187–199Westley F, Mintzberg H (1989) Visionary leadership and strategic management. Strateg Manag J 10:17–32Yang TT, Li CR (2011) Competence exploration and exploitation in new product development: the moderating effects of environmental dynamism and competitiveness. Manag Decis 49(9):1444–147
Functional Analysis of Conserved Non-Coding Regions Around the Short Stature hox Gene (shox) in Whole Zebrafish Embryos
Background: Mutations in the SHOX gene are responsible for Leri-Weill Dyschondrosteosis, a disorder characterised by
mesomelic limb shortening. Recent investigations into regulatory elements surrounding SHOX have shown that deletions of conserved non-coding elements (CNEs) downstream of the SHOX gene produce a phenotype indistinguishable from Leri-Weill Dyschondrosteosis. As this gene is not found in rodents, we used zebrafish as a model to characterise the expression pattern of the shox gene across the whole embryo and characterise the enhancer domains of different CNEs associated with this gene.
Methodology/Principal Findings: Expression of the shox gene in zebrafish was identified using in situ hybridization, with embryos showing expression in the blood, putative heart, hatching gland, brain pharyngeal arch, olfactory epithelium, and fin bud apical ectodermal ridge. By identifying sequences showing 65% identity over at least 40 nucleotides between Fugu, human, dog and opossum we uncovered 35 CNEs around the shox gene. These CNEs were compared with CNEs previously discovered by Sabherwal et al.
,resulting in the identification of smaller more deeply conserved sub-sequence. Sabherwal et al.’s CNEs were assayed for regulatory function in whole zebrafish embryos resulting in the identification of additional tissues under the regulatory control of these CNEs.
Conclusion/Significance: Our results using whole zebrafish embryos have provided a more comprehensive picture of the
expression pattern of the shox gene, and a better understanding of its regulation via deeply conserved noncoding elements. In particular, we identify additional tissues under the regulatory control of previously identified SHOX CNEs. We also demonstrate the importance of these CNEs in evolution by identifying duplicated shox
CNEs and more deeply conserved sub-sequences within already identified CNEs
An enterprise engineering approach for the alignment of business and information technology strategy
Information systems and information technology (IS/IT, hereafter just IT) strategies usually depend on a business strategy. The alignment of both strategies improves their strategic plans. From an external perspective, business and IT alignment is the extent to which the IT strategy enables and drives the business strategy. This article reviews strategic alignment between business and IT, and proposes the use of enterprise engineering (EE) to achieve this alignment. The EE approach facilitates the definition of a formal dialog in the alignment design. In relation to this, new building blocks and life-cycle phases have been defined for their use in an enterprise architecture context. This proposal has been adopted in a critical process of a ceramic tile company for the purpose of aligning a strategic business plan and IT strategy, which are essential to support this process. © 2011 Taylor & Francis.Cuenca, L.; Boza, A.; Ortiz, A. (2011). An enterprise engineering approach for the alignment of business and information technology strategy. International Journal of Computer Integrated Manufacturing. 24(11):974-992. https://doi.org/10.1080/0951192X.2011.579172S9749922411(1993). CIMOSA: Open System Architecture for CIM. doi:10.1007/978-3-642-58064-2Ang, J., Shaw, N., & Pavri, F. (1995). Identifying strategic management information systems planning parameters using case studies. International Journal of Information Management, 15(6), 463-474. doi:10.1016/0268-4012(95)00049-dAvison, D., Jones, J., Powell, P., & Wilson, D. (2004). Using and validating the strategic alignment model. The Journal of Strategic Information Systems, 13(3), 223-246. doi:10.1016/j.jsis.2004.08.002Avgerou, & McGrath. (2007). Power, Rationality, and the Art of Living through Socio-Technical Change. MIS Quarterly, 31(2), 295. doi:10.2307/25148792Bergeron, F., Raymond, L., & Rivard, S. (2004). Ideal patterns of strategic alignment and business performance. Information & Management, 41(8), 1003-1020. doi:10.1016/j.im.2003.10.004Bernus, P., Nemes, L., & Schmidt, G. (Eds.). (2003). Handbook on Enterprise Architecture. doi:10.1007/978-3-540-24744-9Bleistein, S. J., Cox, K., Verner, J., & Phalp, K. T. (2006). B-SCP: A requirements analysis framework for validating strategic alignment of organizational IT based on strategy, context, and process. Information and Software Technology, 48(9), 846-868. doi:10.1016/j.infsof.2005.12.001Buchanan, S., & Gibb, F. (1998). The information audit: An integrated strategic approach. International Journal of Information Management, 18(1), 29-47. doi:10.1016/s0268-4012(97)00038-8Buchanan, S., & Gibb, F. (2007). The information audit: Role and scope. International Journal of Information Management, 27(3), 159-172. doi:10.1016/j.ijinfomgt.2007.01.002Chen, D., & Vernadat, F. (2004). Standards on enterprise integration and engineering—state of the art. International Journal of Computer Integrated Manufacturing, 17(3), 235-253. doi:10.1080/09511920310001607087Chen, D., Doumeingts, G., & Vernadat, F. (2008). Architectures for enterprise integration and interoperability: Past, present and future. Computers in Industry, 59(7), 647-659. doi:10.1016/j.compind.2007.12.016Chen, H.-M., Kazman, R., & Garg, A. (2005). BITAM: An engineering-principled method for managing misalignments between business and IT architectures. Science of Computer Programming, 57(1), 5-26. doi:10.1016/j.scico.2004.10.002Cuenca, L., Ortiz, A., & Vernadat, F. (2006). From UML or DFD models to CIMOSA partial models and enterprise components. International Journal of Computer Integrated Manufacturing, 19(3), 248-263. doi:10.1080/03081070500065841Davis, G. B. (2000). Information Systems Conceptual Foundations: Looking Backward and Forward. IFIP Advances in Information and Communication Technology, 61-82. doi:10.1007/978-0-387-35505-4_5Gindy, N., Morcos, M., Cerit, B., & Hodgson, A. (2008). Strategic technology alignment roadmapping STAR® aligning R&D investments with business needs. International Journal of Computer Integrated Manufacturing, 21(8), 957-970. doi:10.1080/09511920801927148Goethals, F. G., Lemahieu, W., Snoeck, M., & Vandenbulcke, J. A. (2007). The data building blocks of the enterprise architect. Future Generation Computer Systems, 23(2), 269-274. doi:10.1016/j.future.2006.05.004Greefhorst, D., Koning, H., & Vliet, H. van. (2006). The many faces of architectural descriptions. Information Systems Frontiers, 8(2), 103-113. doi:10.1007/s10796-006-7975-xGregor, S., Hart, D., & Martin, N. (2007). Enterprise architectures: enablers of business strategy and IS/IT alignment in government. Information Technology & People, 20(2), 96-120. doi:10.1108/09593840710758031Hartono, E., Lederer, A. L., Sethi, V., & Zhuang, Y. (2003). Key predictors of the implementation of strategic information systems plans. ACM SIGMIS Database, 34(3), 41-53. doi:10.1145/937742.937747Henderson, J. C., & Venkatraman, H. (1993). Strategic alignment: Leveraging information technology for transforming organizations. IBM Systems Journal, 32(1), 472-484. doi:10.1147/sj.382.0472Hirschheim, R., & Sabherwal, R. (2001). Detours in the Path toward Strategic Information Systems Alignment. California Management Review, 44(1), 87-108. doi:10.2307/41166112Hoogervorst, J. A. P. (2009). Enterprise Governance and Enterprise Engineering. doi:10.1007/978-3-540-92671-9Johnson, A. M., & Lederer, A. L. (2010). CEO/CIO mutual understanding, strategic alignment, and the contribution of IS to the organization. Information & Management, 47(3), 138-149. doi:10.1016/j.im.2010.01.002JONKERS, H., LANKHORST, M., VAN BUUREN, R., HOPPENBROUWERS, S., BONSANGUE, M., & VAN DER TORRE, L. (2004). CONCEPTS FOR MODELING ENTERPRISE ARCHITECTURES. International Journal of Cooperative Information Systems, 13(03), 257-287. doi:10.1142/s0218843004000985King, W. R. (1978). Strategic Planning for Management Information Systems. MIS Quarterly, 2(1), 27. doi:10.2307/249104Leonard, J. (2007). Sharing a Vision: comparing business and IS managers’ perceptions of strategic alignment issues. Australasian Journal of Information Systems, 15(1). doi:10.3127/ajis.v15i1.299Luftman, J. N., Lewis, P. R., & Oldach, S. H. (1993). Transforming the enterprise: The alignment of business and information technology strategies. IBM Systems Journal, 32(1), 198-221. doi:10.1147/sj.321.0198Luftman, J., Ben-Zvi, T., Dwivedi, R., & Rigoni, E. H. (2010). IT Governance. International Journal of IT/Business Alignment and Governance, 1(2), 13-25. doi:10.4018/jitbag.2010040102Melville, Kraemer, & Gurbaxani. (2004). Review: Information Technology and Organizational Performance: An Integrative Model of IT Business Value. MIS Quarterly, 28(2), 283. doi:10.2307/25148636Newkirk, H. E., & Lederer, A. L. (2006). Incremental and Comprehensive Strategic Information Systems Planning in an Uncertain Environment. IEEE Transactions on Engineering Management, 53(3), 380-394. doi:10.1109/tem.2006.877446Noran, O. (2003). An analysis of the Zachman framework for enterprise architecture from the GERAM perspective. Annual Reviews in Control, 27(2), 163-183. doi:10.1016/j.arcontrol.2003.09.002Noran, O. (2005). A systematic evaluation of the C4ISR AF using ISO15704 Annex A (GERAM). Computers in Industry, 56(5), 407-427. doi:10.1016/j.compind.2004.12.005Ortiz, A., Lario, F., & Ros, L. (1999). Enterprise Integration—Business Processes Integrated Management: a proposal for a methodology to develop Enterprise Integration Programs. Computers in Industry, 40(2-3), 155-171. doi:10.1016/s0166-3615(99)00021-4Panetto, H., Baïna, S., & Morel, G. (2007). Mapping the IEC 62264 models onto the Zachman framework for analysing products information traceability: a case study. Journal of Intelligent Manufacturing, 18(6), 679-698. doi:10.1007/s10845-007-0040-xPapp, R. (Ed.). (2001). Strategic Information Technology. doi:10.4018/978-1-87828-987-2Peñaranda, N., Mejía, R., Romero, D., & Molina, A. (2010). Implementation of product lifecycle management tools using enterprise integration engineering and action-research. International Journal of Computer Integrated Manufacturing, 23(10), 853-875. doi:10.1080/0951192x.2010.495136Reich, B. H., & Benbasat, I. (2000). Factors That Influence the Social Dimension of Alignment between Business and Information Technology Objectives. MIS Quarterly, 24(1), 81. doi:10.2307/3250980Sledgianowski, D., & Luftman, J. (2005). IT-Business Strategic Alignment Maturity. Journal of Cases on Information Technology, 7(2), 102-120. doi:10.4018/jcit.2005040107Sowa, J. F., & Zachman, J. A. (1992). Extending and formalizing the framework for information systems architecture. IBM Systems Journal, 31(3), 590-616. doi:10.1147/sj.313.0590Van Grembergen, W., & De Haes, S. (2010). A Research Journey into Enterprise Governance of IT, Business/IT Alignment and Value Creation. International Journal of IT/Business Alignment and Governance, 1(1), 1-13. doi:10.4018/jitbag.2010120401Xueying Wang, Xiongwei Zhou, & Longbin Jiang. (2008). A method of business and IT alignment based on Enterprise Architecture. 2008 IEEE International Conference on Service Operations and Logistics, and Informatics. doi:10.1109/soli.2008.468649
Integrated lipidomics and proteomics point to early blood-based changes in childhood preceding later development of psychotic experiences: evidence from the Avon Longitudinal Study of Parents and Children
Background The identification of early biomarkers of psychotic experiences (PEs) is of interest as early diagnosis and treatment of those at risk of future disorder is associated with improved outcomes. The current study investigated early lipidomic and coagulation pathway protein signatures of later PEs in subjects from the Avon Longitudinal Study of Parents and Children cohort. Methods Plasma of 115 children (age 12) who were first identified as experiencing PEs at age 18 (48 cases and 67 controls) were assessed through integrated and targeted lipidomics and semi-targeted proteomics approaches. We assessed the lipids, LPCs (n=11) and PCs (n=61), and the protein members of the coagulation pathway (n=22) and integrated this data with complement pathway protein data already available on these subjects. Results Twelve PCs, four LPCs and the coagulation protein plasminogen were altered between the control and PE group after correction for multiple comparisons. Lipidomic and proteomic datasets were integrated into a multivariate network displaying a strong relationship between most lipids that were significantly associated to PEs and plasminogen. Finally, an unsupervised clustering approach identified four different clusters with one of the clusters presenting the highest ratio cases:controls (P < 0.01) and associated with a higher concentration of smaller LDL cholesterol particles. Conclusions Our findings indicate that the lipidome and proteome of subjects who report PEs at age 18 is already altered at age 12 indicating that metabolic dysregulation may contribute to an early vulnerability to PEs and suggesting cross-talk between these LPCs, PCs and coagulation and complement proteins
Complementarities between IT and Organizational Structure: The Role of Corporate Exploration and Exploitation
The decentralization of organizational decision authority has been shown to be complementary to Information Technology (IT) in prior research. We draw from the information processing view of organizations, the IT and de/centralization debate, and organizational learning theory to argue that IT payoffs can also be improved by greater centralization of decision authority, contingent on a firm’s corporate learning type. We argue that an exploratory learning type is best pursued with a decentralized organization design, while an exploitative learning type requires a centralized organization design. We hypothesize that under corporate exploration, IT payoffs are enhanced through greater decentralization, whereas under corporate exploitation, returns to IT are improved by greater centralization. Our study uses a novel multi‐source panel on the IT capital, the degree of de/centralization, and the performance of almost 260 German manufacturing firms. We estimate production functions to assess the contribution of combning IT with de/centralization to firmlevel productivity under different corporate learning types. Our results strongly support our hypotheses and hold up to a variety of robustness tests
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