809 resultados para Electronic Journals


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Bo Öhrströmin esitys Kirjastoverkkopäivillä 27.10.2011 Helsingissä.

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The aim of this study was to develop a an automated bench top electronic penetrometer (ABEP) that allows performing tests with high rate of data acquisition (up to 19,600 Hz) and with variation of the displacement velocity and of the base area of cone penetration. The mechanical components of the ABEP are: a supporting structure, stepper motor, velocity reducer, double nut ball screw and six penetration probes. The electronic components of ABEP are: a "driver" to control rotation and displacement, power supply, three load cells, two software programs for running and storing data, and a data acquisition module. This penetrometer presented in compact size, portable and in 32 validation tests it proved easy to operate, and showed high resolution, high velocity in reliability in data collection. During the validation tests the equipment met the objectives, because the test results showed that the ABEP could use different sizes of cones, allowed work at different velocities, showed for velocity and displacement, were only 1.3% and 0.7%, respectively, at the highest velocity (30 mm s-1) and 1% and 0.9%, respectively for the lowest velocity (0.1 mm s-1).

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Personalised ubiquitous services have rapidly proliferated due technological advancements in sensing, ubiquitous and mobile computing. Evolving societal trends, business and the economic potential of Personal Information (PI) have overlapped the service niches. At the same time, the societal thirst for more personalised services has increased and are met by soliciting deeper and more privacy invasive PI from customers. Consequentially, reinforcing traditional privacy challenges and unearthed new risks that render classical safeguards ine ective. The absence of solutions to criticise personalised ubiquitous services from privacy perspectives, aggravates the situation. This thesis presents a solution permitting users' PI, stored in their mobile terminals to be disclosed to services in privacy preserving manner for personalisation needs. The approach termed, Mobile Electronic Personality Version 2 (ME2.0), is compared to alternative mechanisms. Within ME2.0, PI handling vulnerabilities of ubiquitous services are identi ed and sensitised on their practices and privacy implications. Vulnerability where PI may leak through covert solicits, excessive acquisitions and legitimate data re-purposing to erode users privacy are also considered. In this thesis, the design, components, internal structures, architectures, scenarios and evaluations of ME2.0 are detailed. The design addresses implications and challenges leveraged by mobile terminals. ME2.0 components and internal structures discusses the functions related to how PI pieces are stored and handled by terminals and services. The architecture focusses on di erent components and their exchanges with services. Scenarios where ME2.0 is used are presented from di erent environment views, before evaluating for performance, privacy and usability.

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The International Committee of Medical Journal Editors (ICMJE) proposed trials registration in a public trials registry, as a condition for publication. This policy started after July 1, 2005, and was supported by the World Association of Medical Editors (WAME). In May 19, 2006, the WHO urged research institutions and companies to register all medical studies that test treatments on human beings, whether they involve patients or healthy volunteers. The WHO also started the International Clinical Trials Registry Platform (ICTRP), aimed at standardizing the way information of studies is made available to the public. The following registers contribute data directly to the Who Search Portal: Australian Clinical Trials Registry, ClinicalTrials.gov, and International Standard Randomized Controlled Trial Number Register. In May 15, 2007, the Latin American and Caribbean Center on Health Sciences Information (BIREME) published a recommendation for editors of health journals indexed in Latin American and Caribbean Literature on Health Sciences (LILACS) and Scientific Library Electronic Online (ScieLO) about registration of clinical trials. In addition to the UMIN Clinical Trial Registry and the Nederlands Trial Register, the ICMJE is now accepting registration in any of the primary registers that participate in the WHO ICTRP. The ICMJE is also adopting the WHO's definition of clinical trial. Three years ago, trials registration was the exception; now it is the rule. Registration facilitates the dissemination of information, and it helps to assure trial participants that the information that accrues as a result of their altruism will become part of the public record.

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Companies and organizations business activities rely on information. IT systems that manage master data must provide the highest level of service, world-class scalability and reliable information. This study discusses product information and how it can support the creation of a spare part catalog and the launching of eBusiness. The study consists of a theoretical and empirical part. The theoretical part contains a literature review and a framework for the analysis. For the empirical study two companies were selected and their information management processes were studied and analyzed based on the framework. The empirical results indicate that the challenges the companies face reflect the ones that can be found in the literature study. The results of the empirical study also show that the companies had recognized the issues which need to be developed and had recognized trends in eBusiness and product information management.

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This paper describes an electronic transducer for multiphase flow measurement. Its high sensitivity, good signal to noise ratio and accuracy are achieved through an electrical impedance sensor with a special guard technique. The transducer consists of a wide bandwidth and high slew rate differentiator where the lead inductance and stray capacitance effects are compensated. The sensor edge effect is eliminated by using a guard electrode based on the virtual ground potential of the operational amplifier. A theoretical modeling and a calibration method are also presented. The results obtained seem to confirm the validity of the proposed technique.

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The necessity of EC (Electronic Commerce) and enterprise systems integration is perceived from the integrated nature of enterprise systems. The proven benefits of EC to provide competitive advantages to the organizations force enterprises to adopt and integrate EC with their enterprise systems. Integration is a complex task to facilitate seamless flow of information and data between different systems within and across enterprises. Different systems have different platforms, thus to integrate systems with different platforms and infrastructures, integration technologies, such as middleware, SOA (Service-Oriented Architecture), ESB (Enterprise Service Bus), JCA (J2EE Connector Architecture), and B2B (Business-to-Business) integration standards are required. Huge software vendors, such as Oracle, IBM, Microsoft, and SAP suggest various solutions to address EC and enterprise systems integration problems. There are limited numbers of literature about the integration of EC and enterprise systems in detail. Most of the studies in this area have focused on the factors which influence the adoption of EC by enterprise or other studies provide limited information about a specific platform or integration methodology in general. Therefore, this thesis is conducted to cover the technical details of EC and enterprise systems integration and covers both the adoption factors and integration solutions. In this study, many literature was reviewed and different solutions were investigated. Different enterprise integration approaches as well as most popular integration technologies were investigated. Moreover, various methodologies of integrating EC and enterprise systems were studied in detail and different solutions were examined. In this study, the influential factors to adopt EC in enterprises were studied based on previous literature and categorized to technical, social, managerial, financial, and human resource factors. Moreover, integration technologies were categorized based on three levels of integration, which are data, application, and process. In addition, different integration approaches were identified and categorized based on their communication and platform. Also, different EC integration solutions were investigated and categorized based on the identified integration approaches. By considering different aspects of integration, this study is a great asset to the architectures, developers, and system integrators in order to integrate and adopt EC with enterprise systems.

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Presentation at the Nordic Perspectives on Open Access and Open Science seminar, Helsinki, October 15, 2013

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Presentation at the Nordic Perspectives on Open Access and Open Science seminar, Helsinki, October 15, 2013

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Kristiina Hormia-Poutasen esitys KRE-konferenssissa 2013.

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Pro gradu –tutkielman ensisijaisena tavoitteena on tutkia sähköisen ta-loushallinnon kehitystä ja miten se on näkynyt alan suomalaisessa ja kansainvälisessä ammattilehtikirjoittelussa vuosina 1997 – 2013. Tarkoi-tuksena on löytää kirjoittelun perusteella sähköisen taloushallinnon kehi-tyksen edistäviä ja hidastavia tekijöitä sekä minkälaisia tulevaisuuden näkymiä artikkelit luovat sähköiselle taloushallinnolle. Lisäksi tavoitteena on löytää yhtäläisyyksiä ja eroja kansallisen ja kansainvälisen kirjoittelun välillä. Tutkielma on laadullinen tutkimus ja tutkimusmenetelminä käytetään si-sällönanalyysia, sisällönerittelyä, teemoittelua ja vertailevaa tutkimusta. Tutkielman empiirinen aineisto koostuu Tilisanomien, Balanssi–lehden ja Accountancy–lehden sähköistä taloushallintoa koskevista artikkeleista aikavälillä 1997 – 2013. Tutkimustulosten perusteella sähköisen taloushallinnon kehityskulku näkyy myös ammattilehtikirjoittelussa. Tietojärjestelmät ja niiden käytön mahdollistava lainsäädäntö ovat sähköisen taloushallinnon perusedelly-tykset. Suurimpia kehityksen edistäjiä ovat julkinen valta, verkkolaskut ja standardointi. Kehityksen hidastajina nähdään yhtenäisten standardien puute ja asenteet. Sähköisen taloushallinnon tulevaisuuden näkymiä ovat standardoidut prosessit ja käsitteet koko taloushallinnon alueella sekä viranomaisraportointi XBRL-kielen avulla. Suurimmat erot kansalli-sessa ja kansainvälisessä kehityksessä on havaittavissa verkkolaskuissa ja XBRL-raportoinnissa. Johtopäätöksenä todetaan että kirjoittelun perusteella voidaan löytää sähköisen taloushallinnon kehitystä hidastavia ja edistäviä tekijöitä ja se luo viitteitä tulevaisuuden kehitykselle. Sähköinen taloushallinto kehittyy kunkin maan valtiovallan tahtotilan ja lainsäädännön mukaan. Jatkotut-kimuskohteena tutkielmaa voisi laajentaa kansainvälisemmäksi ottamalla mukaan tarkasteluun useampia kansainvälisiä lehtiä ja kansainvälistä lainsäädäntöä.

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The Swedish public health care organisation could very well be undergoing its most significant change since its specialisation during the late 19th and early 20th century. At the heart of this change is a move from using manual patient journals to electronic health records (EHR). EHR are complex integrated organisational wide information systems (IS) that promise great benefits and value as well as presenting great challenges to the organisation. The Swedish public health care is not the first organisation to implement integrated IS, and by no means alone in their quest for realising the potential benefits and value that it has to offer. As organisations invest in IS they embark on a journey of value-creation and capture. A journey where a costbased approach towards their IS-investments is replaced with a value-centric focus, and where the main challenges lie in the practical day-to-day task of finding ways to intertwine technology, people and business processes. This has however proven to be a problematic task. The problematic situation arises from a shift of perspective regarding how to manage IS in order to gain value. This is a shift from technology delivery to benefits delivery; from an ISimplementation plan to a change management plan. The shift gives rise to challenges related to the inability of IS and the elusiveness of value. As a response to these challenges the field of IS-benefits management has emerged offering a framework and a process in order to better understand and formalise benefits realisation activities. In this thesis the benefits realisation efforts of three Swedish hospitals within the same county council are studied. The thesis focuses on the participants of benefits analysis projects; their perceptions, judgments, negotiations and descriptions of potential benefits. The purpose is to address the process where organisations seek to identify which potential IS-benefits to pursue and realise, this in order to better understand what affects the process, so that realisation actions of potential IS-benefits could be supported. A qualitative case study research design is adopted and provides a framework for sample selection, data collection, and data analysis. It also provides a framework for discussions of validity, reliability and generalizability. Findings displayed a benefits fluctuation, which showed that participants’ perception of what constituted potential benefits and value changed throughout the formal benefits management process. Issues like structure, knowledge, expectation and experience affected perception differently, and this in the end changed the amount and composition of potential benefits and value. Five dimensions of benefits judgment were identified and used by participants when finding accommodations of potential benefits and value to pursue. Identified dimensions affected participants’ perceptions, which in turn affected the amount and composition of potential benefits. During the formal benefits management process participants shifted between judgment dimensions. These movements emerged through debates and interactions between participants. Judgments based on what was perceived as expected due to one’s role and perceived best for the organisation as a whole were the two dominant benefits judgment dimensions. A benefits negotiation was identified. Negotiations were divided into two main categories, rational and irrational, depending on participants’ drive when initiating and participating in negotiations. In each category three different types of negotiations were identified having different characteristics and generating different outcomes. There was also a benefits negotiation process identified that displayed management challenges corresponding to its five phases. A discrepancy was also found between how IS-benefits are spoken of and how actions of IS benefits realisation are understood. This was a discrepancy between an evaluation and a realisation focus towards IS value creation. An evaluation focus described IS-benefits as well-defined and measurable effects and a realisation focus spoke of establishing and managing an on-going place of value creation. The notion of valuescape was introduced in order to describe and support the understanding of IS value creation. Valuescape corresponded to a realisation focus and outlined a value configuration consisting of activities, logic, structure, drivers and role of IS.