Single acquisition electrical property mapping based on relative coil sensitivities: A proof-of-concept demonstration.

PURPOSE: All methods presented to date to map both conductivity and permittivity rely on multiple acquisitions to compute quantitatively the magnitude of radiofrequency transmit fields, B1+. In this work, we propose a method to compute both conductivity and permittivity based solely on relative receive coil sensitivities ( B1-) that can be obtained in one single measurement without the need to neither explicitly perform transmit/receive phase separation nor make assumptions regarding those phases. THEORY AND METHODS: To demonstrate the validity and the noise sensitivity of our method we used electromagnetic finite differences simulations of a 16-channel transceiver array. To experimentally validate our methodology at 7 Tesla, multi compartment phantom data was acquired using a standard 32-channel receive coil system and two-dimensional (2D) and 3D gradient echo acquisition. The reconstructed electric properties were correlated to those measured using dielectric probes. RESULTS: The method was demonstrated both in simulations and in phantom data with correlations to both the modeled and bench measurements being close to identity. The noise properties were modeled and understood. CONCLUSION: The proposed methodology allows to quantitatively determine the electrical properties of a sample using any MR contrast, with the only constraint being the need to have 4 or more receive coils and high SNR. Magn Reson Med, 2014. © 2014 Wiley Periodicals, Inc.

Internationalization of Experience Pro concept

Diplomityö on tehty STTF:lle (Software Technology Transfer Finland), joka pyrkii kansainvälisille markkinoille Experience Pro -tuotekonseptillaan. Kansainvälistyminen on haasteellinen prosessi pk-yritykselle, ja haastetta haluttiin lähestyä strategisella suunnittelulla. Työn tavoitteena oli teoriatiedon ja löydettyjen kansainvälistymisesimerkkien avulla tuottaa STTF:lle kansainvälistymissuunnitelma strategiaan pohjautuen.Kaksi merkittävintä strategista valintaa STTF:n kansainvälistymisessä olivat kohdemaiden ja operaatiomuodon valinnat. Päätökset tehtiin strategisten analyysien perusteella. Analyysien avulla määritettiin myös yrityksen kilpailuedut. Löydettyjä vahvuuksia pyrittiin hyödyntämään myöhemmin kansainvälistymisen osastrategioita rakennettaessa. Tavoitteiden asettaminen ja markkinointi-mix:n kehittäminen olivat keskeisimmät osat markkinoinnin osastrategiassa. Jakelukanavan merkitystä korostettiin STTF:n kansainvälistymisessä ja yhteistyölle pyrittiin luomaan hyvät edellytykset. Strategia konkretisoitiin luomalla operatiiviset suunnitelmat markkinoinnin tukimateriaalien tuottamiseksi ja yhteistyökumppanien etsimiseksi. Markkinatutkimuksen perusteella potentiaaliset kohdemaat Experience Pro -konseptille olivat Australia, Hollanti, Irlanti, Iso-Britannia, Norja, Ruotsi, Saksa ja Tanska. STTF:llä on muutama sopiva vaihtoehtoinen operaatiomuoto valittavanaan riippuen kohdemaasta. Suomen maine vakaana, korkean teknologian maana voidaan nähdä maaetuna STTF:lle ja muita vahvuuksia ovat STTF:n teknologinen osaaminen, tuotteeseen liittyvät palvelut ja henkilökohtaiset kontaktit. SWOT-analyysi paljasti STTF:n heikkouksia voitettaviksi.Tulevaisuudessa STTF voi jatkaa kansainvälistymistään suunnitelman mukaisesti. Tavoitteiden saavuttaminen vaatii sitoutumista, aktiivista yhteistyökumppanien etsimistä ja jatkuvaa prosessien kehittämistä vastaamaan kansainvälisten markkinoiden vaatimuksia.

Information Sharing in Drives Alliance Partner Concept

Työssä oli selkeästi kaksi tavoitetta. Ensimmäisenä tavoitteena oli tutkia, millaisesta kumppanuudesta Drives Alliance Partner -konsepti (DAP) muodostuu. Työn toisena tavoitteena oli selvittää ja analysoida DAP-konseptin informaation jakamiseen liittyvät tietotyypit, ja tehdä esitys siitä, mitä tietoa ABB:nja kumppaneiden välillä tulisi vaihtaa. Jotta kumppanuuden tila saatiin selville, tehtiin ABB:n sisäisiä haastatteluja sekä käytettiin hyväksi DAP-konseptista tehtyä dokumentaatiota. Informaation jakamiseen liittyvä tietotarpeiden kartoitus toteutettiin web-pohjaisen kyselyn avulla. Kysely toimitettiin osalle ABB:n nykyisistä kumppaneista sekä sellaisille ABB:n työntekijöille, jotka liittyvät DAP- konseptiin. Työssä luotiin malli kuvaamaan informaation vaihtoa partnereiden j a ABB :n välillä. Malliin otettiin mukaan ne tietotarpeet, jotka tehdyn kyselyn mukaan osoittautuivat tarpeellisiksi. Kumppanuuksiin syventymisen myötä tiedonvaihdon merkitys tulee entisestään korostumaan, mikä asettaa uusia haasteita ABB:lle.

Visualizing Business Model Evolution with the Business Model Canvas: Concept and Tool

The Business Model Canvas (BMC) assists in the design of companies' business models. As strategies evolve so too does the business model. Unfortunately, each BMC is a standalone representation. Thus, there is a need to be able to describe transformation from one version of a business model to the next as well as to visualize these operations. To address this issue, and to contribute to computer-assisted business model design, we propose a set of design principles for business model evolution. We also demonstrate a tool that can assist in the creation and navigation of business model versions in a visual and user-friendly way

Creating CRM Concept for Internet Gaming Business - Case: European Game & Entertainment Technology

Työn tavoitteena oli luoda asiakassuhteidenhallintakonsepti Internetpelijärjestelmälle sekä luoda asiakassuhteidenhallintaprosessi keskittyen viestintä- ja personointiominaisuuksiin. Lisäksi työssä määritettiin CRM järjestelmän ominaisuudet ja toiminnallisuudet. Työ toteutettiin kvalitatiivisena case tutkimuksena. Tiedot empiiristä tutkimusta varten kerättiin haastattelemalla kohderyhminä olleita asiakkaita sekä case-yrityksen avainhenkilöitä. Työssä selvitettiin ensin suhdemarkkinoinnin perusteet, konsepti sekä asiakassuhteen arvo. Yhteys peliliiketoimintaan sekä Internet peliliiketoiminnan perusteet esitettin. CRM konsepti määriteltiin teoriassa sekä CRM prosessi määritettin perustuen teoreettiseen tutkimukseen sekä empiirisiin tuloksiin. Seuraavaksi luotiin CRM konsepti case-yritykselle perustuen CRM prosessin tuottamaan informaatioon ja asiakastarpeisiin. Asiakassuhteiden hallinta voidaan jakaa kolmeen tasoon - strategiseen, analyyttiseen ja toiminnalliseen. CRM konseptin luominen on tapauskohtainen prosessi. Siihen vaikuttaa voimakkaasti toimiala, millä yritys toimii. Myös asiakastarpeiden kartoituksella on tärkeä merkitys onnistuneen konseptin luomisessa. Sekä kirjallisuuteen perustuvat, että empiiriset havainnot painottivat personoinnin ja viestinnän vaikutusta CRM konseptissa.

Contrast : a concept in language and its development in Medieval Spanish

The purpose of this PhD thesis is to investigate a semantic relation present in the connection of sentences (more specifically: propositional units). This relation, which we refer to as contrast, includes the traditional categories of adversatives - predominantly represented by the connector but in English and pero in Modern Spanish - and concessives, prototypically verbalised through although / aunque. The aim is to describe, analyse and - as far as possible - to explain the emergence and evolution of different syntactic schemes marking contrast during the first three centuries of Spanish (also referred to as Castilian) as a literary language, i.e., from the 13th to the 15th century. The starting point of this question is a commonplace in syntax, whereby the semantic and syntactic complexity of clause linkage correlates with the degree of textual elaboration. In historical linguistics, i.e., applied to the phylogeny of a language, it is commonly referred to as the parataxis hypothesis A crucial part of the thesis is dedicated by the definition of contrast as a semantic relation. Although the label contrast has been used in this sense, mainly in functional grammar and text linguistics, mainstream grammaticography and linguistics remain attached to the traditional categories adversatives and concessives. In opposition to this traditional view, we present our own model of contrast, based on a pragma-semantic description proposed for the analysis of adversatives by Oswald Ducrot and subsequently adopted by Ekkehard König for the analysis of concessives. We refine and further develop this model in order for it to accommodate all, not just the prototypical instances of contrast in Spanish, arguing that the relationship between adversatives and concessives is a marked opposition, i.e., that the higher degree of semantic and syntactic integration of concessives restricts some possible readings that the adversatives may have, but that this difference is almost systematically neutralised by contextual factors, thus justifying the assumption of contrast as a comprehensive onomasiological category. This theoretical focus is completed by a state-of-the-question overview attempting to account for all relevant forms in which contrast is expressed in Medieval Spanish, with the aid of lexicographic and grammaticographical sources, and an empirical study investigating the expression of corpus in a corpus study on the textual functions of contrast in nine Medieval Spanish texts: Cantar de Mio Cid, Libro de Alexandre, Milagros de Nuestra Sehora, Estoria de Espana, Primera Partida, Lapidario, Libro de buen amor, Conde Lucanor, and Corbacho. This corpus is analysed using quantitative and qualitative tools, and the study is accompanied by a series of methodological remarks on how to investigate a pragma-semantic category in historical linguistics. The corpus study shows that the parataxis hypothesis fails to prove from a statistical viewpoint, although a qualitative analysis shows that the use of subordination does increase over time in some particular contexts.

Opportunities for imported Pick and Mix candy concept in Korea

The aim of this thesis is to allocate business opportunities for the imported Pick and Mix candy concept in Korea. The approach of the study is descriptive-analytical and normative. The aim is firstly define a small theoretical background for firm's internationalization and topics related to this research such as marketing mix concepts. Secondly describe the new marketing area, where the company is aiming and finding the obstacles of entry and defining shortly the four P's concept what is used by this research. This research found that Korea is a potential market for imported Pick and Mix candy concept. Research proves that Korean consumers are having enough money to spent for items, which increase the quality of life. This research determined that Korean economy will have positive trend in the near future. It is also found in the study that operation costs of running a business in Korea is less than in western world.

Prevalence of Acute Coronary Syndrome in Patients Suspected for Pulmonary Embolism or Acute Aortic Syndrome: Rationale for the Triple Rule-out Concept.

BACKGROUND: The aims of the study were to evaluate the prevalence of acute coronary syndrome (ACS) among patients presenting with atypical chest pain who are evaluated for acute aortic syndrome (AAS) or pulmonary embolism (PE) with computed tomoangiography (CTA) and discuss the rationale for the use of triple rule-out (TRO) protocol for triaging these patients. METHODS: This study is a retrospective analysis of patients presenting with atypical chest pain and evaluated with thoracic (CTA), for suspicion of AAS/PE. Two physicians reviewed patient files for demographic characteristics, initial CT and final clinical diagnosis. Patients were classified according to CTA finding into AAS, PE and other diagnoses and according to final clinical diagnosis into AAS, PE, ACS and other diagnoses. RESULTS: Four hundred and sixty-seven patients were evaluated: 396 (84.8%) patients for clinical suspicion of PE and 71 (15.2%) patients for suspicion of AAS. The prevalence of ACS and AAS was low among the PE patients: 5.5% and 0.5% respectively (P = 0.0001), while the prevalence of ACS and PE was 18.3% and 5.6% among AAS patients (P = 0.14 and P = 0.34 respectively). CONCLUSION: The prevalence of ACS and AAS among patients suspected clinically of having PE is limited while the prevalence of ACS and PE among patients suspected clinically of having AAS is significant. Accordingly patients suspected for PE could be evaluated with dedicated PE CTA while those suspected for AAS should still be triaged using TRO protocol.

Ultra-high-resolution 3D imaging of atherosclerosis in mice with synchrotron differential phase contrast: a proof of concept study.

The goal of this study was to investigate the performance of 3D synchrotron differential phase contrast (DPC) imaging for the visualization of both macroscopic and microscopic aspects of atherosclerosis in the mouse vasculature ex vivo. The hearts and aortas of 2 atherosclerotic and 2 wild-type control mice were scanned with DPC imaging with an isotropic resolution of 15 μm. The coronary artery vessel walls were segmented in the DPC datasets to assess their thickness, and histological staining was performed at the level of atherosclerotic plaques. The DPC imaging allowed for the visualization of complex structures such as the coronary arteries and their branches, the thin fibrous cap of atherosclerotic plaques as well as the chordae tendineae. The coronary vessel wall thickness ranged from 37.4 ± 5.6 μm in proximal coronary arteries to 13.6 ± 3.3 μm in distal branches. No consistent differences in coronary vessel wall thickness were detected between the wild-type and atherosclerotic hearts in this proof-of-concept study, although the standard deviation in the atherosclerotic mice was higher in most segments, consistent with the observation of occasional focal vessel wall thickening. Overall, DPC imaging of the cardiovascular system of the mice allowed for a simultaneous detailed 3D morphological assessment of both large structures and microscopic details.

How we experience immersive virtual environments: the concept of presence and its measurement

This paper reviews the concept of presence in immersive virtual environments, the sense of being there signalled by people acting and responding realistically to virtual situations and events. We argue that presence is a unique phenomenon that must be distinguished from the degree of engagement, involvement in the portrayed environment. We argue that there are three necessary conditions for presence: the (a) consistent low latency sensorimotor loop between sensory data and proprioception; (b) statistical plausibility: images must be statistically plausible in relation to the probability distribution of images over natural scenes. A constraint on this plausibility is the level of immersion;(c) behaviour-response correlations: Presence may be enhanced and maintained over time by appropriate correlations between the state and behaviour of participants and responses within the environment, correlations that show appropriate responses to the activity of the participants. We conclude with a discussion of methods for assessing whether presence occurs, and in particular recommend the approach of comparison with ground truth and give some examples of this.

Can the administration be trusted? An analysis of the concept of trust, applied to the public sector

In the first part of this paper, we present the various academic debates and, where applicable, questions that remain open in the literature, particularly regarding the nature of trust, the distinction between trust and trustworthiness, its role in specific relationships and its relationship to control. We then propose a way of demarcating and operationalizing the concepts of trust and trustworthiness. In the second part, on the basis of the conceptual clarifications we present, we put forward a number of "anchor points" regarding how trust is apprehended in the public sector with regard to the various relations hips that can be studied. Schematically, we distinguish between two types of relations hips in the conceptual approach to trust: on one hand, the trust that citizens, or third parties, place in the State or in various public sector authorities or entities, and on the other hand, trust within the State or the public sector, between its various authorities, entities, and actors. While studies have traditionally focused on citizens' trust in their institutions, the findings, limitations and problems observed in public - sector coordination following the reforms associated with New Public Management have also elicited growing interest in the study of trust in the relationships between the various actors within the public sector. Both the theoretical debates we present and our propositions have been extracted and adapted from an empirical comparative study of coordination between various Swiss public - service organizations and their politico - administrative authority. Using the analysis model developed for this specific relationship, between various actors within the public service, and in the light of theoretical elements on which development of this model was based, we propose some avenues for further study - questions that remain open - regarding the consideration and understanding of citizens' trust in the public sector.