224 research outputs found

    A Bibliometric Study on Authorship Trends and Research Themes in Knowledge Management Literature

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    This is the author accepted manuscript. The final version is available from IFKAD via the link in this record.The aim of the study is to identify the contribution of authors in the domain of Knowledge Management (KM). The underlying data is from two leading KM journals, namely, the Journal of Knowledge Management (JKM) and the Journal of Intellectual Capital (JIC). We downloaded articles from Thomson Reuters Web of Science (WoS),with JKM and JIC-specific searches resulting in 508 and 73 citing articles respectively. The timeframe of analysis was 2009-2016. This dataset was used to create co-citation network visualisations to provide insights into the clusters of authors and research topics. Measures such as Betweenness centrality and hubs-authorities (HITS) were used to identify significant authors and their key themes of interest. More specifically, network analysis identified six dominant research themes, it revealed a total of 14,422 authors being cited (depicted as nodes in the visualisation) with a total of 1,023,123 citations (edges). Based on the findings of this study, the paper will explore the specific themes and the intellectual turning points in KM research and its evolution. Our bibliometric analysis has practical significance for researchers since it recognises the dominant research areas, and by extension, it identifies those that are still in their infancy; the latter having the potential of representing an interesting research gap. The limitation of the study is that the underlying data is only from two journals (albeit, from the top two journals in KM), which may lead to partially biased results. In future, the aim is to also leverage the analysis to more KM journals, e.g., the top ten journals within the Serenko & Bontis (2013) most updated list

    Työkyvyn hallinta, seuranta ja varhainen tuki : Tutkimus sairausvakuutuslain vuoden 2011 muutoksen vaikutuksista työpaikkojen toimintaan

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    Tutkimuksessa selvitettiin vuoden 2011 sairausvakuutuslain muutoksen vaikutuksia työkyvyn hallintaan, seurantaan ja varhaiseen tukeen. Sairausvakuutuslakimuutos (L 1056/2010) edellyttää, että ”työpaikalla on yhteistyössä työterveyshuollon kanssa sovitut käytännöt siitä, miten työkyvyn hallintaa, seurantaa ja varhaista tukea toteutetaan työpaikan ja työterveyshuollon yhteisenä toimintana”, jotta työterveyshuollon korvausluokkaan 1 kuuluvista palveluista aiheutuvista kustannuksista korvattaisiin 50 %:n sijaan 60 %. Tutkimus toteutettiin kahdessa vaiheessa. Ensimmäisessä vaiheessa tehtiin laaja, sähköinen kyselytutkimus, johon osallistui yli 1 000 työnantajaa. Toisessa vaiheessa kartoitettiin syvemmin työnantajien hyviksi kokemia työkyvyn hallinnan käytäntöjä sekä kehitysehdotuksia case-tutkimuksen menetelmin suppeammasta 22 työnantajan otoksesta. Tämän lisäksi haastateltiin viittä eri työterveyshuollon palveluntuottajaa. Yli 85 % kyselytutkimukseen osallistuneista ilmoitti sopineensa toimintakäytännöistä tai laatineensa toimenpideohjelman yhteistyössä työterveyshuollon kanssa, mikä on noin 10 prosenttiyksikköä enemmän kuin ennen vuotta 2011. Erilaisille toimintamalleille on laadittu suunnitelmia melko kattavasti, mutta suunnitelmien seuranta ei ole vielä systemaattista: suunnitelmiin ei ole kytketty tavoitteita, ja seurattavat mittarit puolestaan eivät välttämättä kytkeydy suunnitelmiin. Suurin osa tutkimuksen toiseen vaiheeseen osallistuneista organisaatioista koki lakimuutoksen onnistuneeksi tavaksi edistää työkyvyn hallintaa. Osallistuneissa organisaatioissa työkyvyn hallinta ja varhainen tuki on tullut viime vuosina keskimäärin systemaattisemmaksi ja tavoitteellisemmaksi. Haastateltavat kuitenkin korostivat organisaation omaa toimintaa ja valmiutta tärkeämmäksi työkyvyn hallinnassa. Haastateltavat pitivät suunnitelmien tekoa melko hyödyllisenä työkyvyn hallinnan kannalta ja osasivat mainita esimerkkejä hyvistä työkykykäytännöistä. Tavoitteiden seuranta ja mittaaminen ei kuitenkaan ole niin systemaattista kuin laajat suunnitelmat antaisivat olettaa. Tavoitteet on suunnitelmissa ilmaistu tyypillisesti yleisellä tasolla, jolloin niitä on vaikea mitata tai asettaa tavoitetasoja. Työpaikoilla seurataankin tyypillisesti helposti mitattavia asioita, kuten työtapaturmia, sairauspoissaoloja ja ennenaikaisia eläköitymisiä. Nämä kuvastavat myöhäisen vaiheen ongelmia. Varhaisen vaiheen tunnistamista tai ennaltaehkäisyn toteutumista ei seurata, oletettavasti niiden vaikean mitattavuuden vuoksi, vaikka tavoitteista nämä teemat löytyvät. Työkyvyn hallinnan kehittäminen on monivaiheinen prosessi, joka lähteäkseen käyntiin edellyttää yleistä tietoisuutta työkyvyn hallinnasta sekä henkilöstöasioista vastaavien tahojen kykyä kommunikoida muun johdon kanssa työkyvyn hallinnan kustannusvaikuttavuudesta. Onnistunut työkyvyn hallinta edellyttää lisäksi, että johto on sitoutunut siihen, sisäinen viestintä esimiehille ja työntekijöille toimii ja että henkilöstö osallistuu prosessiin

    Wooden Breast Myodegeneration of Pectoralis Major Muscle Over the Growth Period in Broilers

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    Wooden breast (WB) myopathy of broiler chickens is a myodegenerative disease of an unknown etiology and is macroscopically characterized by a hardened consistency of the pectoralis major muscle. Our aim was to describe the development and morphology of WB over the growth period in broilers. Additionally, the effect of restricted dietary selenium on the occurrence of WB was examined by allocating the birds in 2 dietary groups: restricted and conventional level of selenium. The experiment included 240 male broilers that were euthanized at ages of 10, 18, 24, 35, 38, or 42 days and evaluated for WB based on abnormal hardness of the pectoralis major muscle. The severity and the distribution of the lesion and presence of white striping were recorded. The first WB cases were seen at 18 days; 13/47 birds (28%) were affected and the majority exhibited a mild focal lesion. In subsequent age groups the WB prevalence varied between 48% and 73% and the lesion was usually diffuse and markedly firm. White striping often coexisted with WB. Histological evaluation performed on 111 cases revealed a significant association of myodegeneration and lymphocytic vasculitis with WB. Vasculitis and perivascular cell infiltration were restricted to the veins. Restricted dietary selenium did not affect the occurrence of WB (P = .44). Our results indicate that WB starts focally and spreads to form a diffuse and more severe lesion.Peer reviewe

    Cognitively-inspired Agent-based Service Composition for Mobile & Pervasive Computing

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    Automatic service composition in mobile and pervasive computing faces many challenges due to the complex and highly dynamic nature of the environment. Common approaches consider service composition as a decision problem whose solution is usually addressed from optimization perspectives which are not feasible in practice due to the intractability of the problem, limited computational resources of smart devices, service host's mobility, and time constraints to tailor composition plans. Thus, our main contribution is the development of a cognitively-inspired agent-based service composition model focused on bounded rationality rather than optimality, which allows the system to compensate for limited resources by selectively filtering out continuous streams of data. Our approach exhibits features such as distributedness, modularity, emergent global functionality, and robustness, which endow it with capabilities to perform decentralized service composition by orchestrating manifold service providers and conflicting goals from multiple users. The evaluation of our approach shows promising results when compared against state-of-the-art service composition models.Comment: This paper will appear on AIMS'19 (International Conference on Artificial Intelligence and Mobile Services) on June 2

    Charting the reach and contribution of IMP literature in other disciplines: A bibliometric analysis

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    This is the author accepted manuscript. The final version is available from the publisher via the DOI in this recordThe acknowledgement of a research tradition by other disciplines shows its contribution to the development of the broader body of scientific knowledge. This paper investigates the contribution of IMP (Industrial Marketing and Purchasing) research to broader research disciplines by analyzing how researchers within and beyond IMP have cited core IMP articles. First, through quantitative bibliometric analysis, the paper identifies the diffusion to other research disciplines. Thereafter, through qualitative analysis, the impact of the IMP perspective is captured to understand how strong these imprints are. The analyses show that IMP research has been noticed among a range of adjacent research disciplines. However, the use of IMP references has generally been rudimentary, and without a deeper understanding of the IMP ontology, meaning that IMP still has some “weak ties” to the other disciplines. Establishing IMP's contribution through enduring imprints would need further engagement with researchers from other research disciplines and publications in top journals. The paper contributes empirically with how the IMP perspective has spread beyond the IMP Group and theoretically by adding insight into how research ideas travel and transform to other disciplines

    Reliability Analysis of Component-Based Systems with Multiple Failure Modes

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    This paper presents a novel approach to the reliability modeling and analysis of a component-based system that allows dealing with multiple failure modes and studying the error propagation among components. The proposed model permits to specify the components attitude to produce, propagate, transform or mask different failure modes. These component-level reliability specifications together with information about systems global structure allow precise estimation of reliability properties by means of analytical closed formulas, probabilistic modelchecking or simulation methods. To support the rapid identification of components that could heavily affect systems reliability, we also show how our modeling approach easily support the automated estimation of the system sensitivity to variations in the reliability properties of its components. The results of this analysis allow system designers and developers to identify critical components where it is worth spending additional improvement efforts

    Female responses to experimental removal of sexual selection components in Drosophila melanogaster

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    Despite the common assumption that multiple mating should in general be favored in males, but not in females, to date there is no consensus on the general impact of multiple mating on female fitness. Notably, very little is known about the genetic and physiological features underlying the female response to sexual selection pressures. By combining an experimental evolution approach with genomic techniques, we investigated the effects of single and multiple matings on female fecundity and gene expression. We experimentally manipulated the opportunity for mating in replicate populations of Drosophila melanogaster by removing components of sexual selection, with the aim of testing differences in short term post-mating effects of females evolved under different mating strategies
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