ERP PACKAGE EVALUATION, THE CASE OF SMEs KAVALA’s REGION

In this paper we want to examine how enterprise resource planning (ERP) systemseffects on small and medium-sized enterprises (SMEs) Kavala’s region. We consider several SMEsof our region, we use data from each SME and we form a questionnaire to secure more data fromthe enterprises. We weight up the factors that affect the choice of ERP. Also, we relate these factorswith basic characteristics of the specific SMEs of our region. Flexibility and functionality are themost important criteria of choosing an ERP system. Surprisingly, the cost is one of the lessimportant criteria. Also, minor effects have criteria such as brand, name and position of the vendor.Finally, we indicate issues for future research.ERP, SMEs, criteria evaluation

Evaluation of operational programme “competitiveness” in the frames of the 3rd Community Support Framework (CSF) : action 2.11.2

This study is aiming to outline the entrepreneurs’ opinions regarding to the effect of the Intermediary Management Agencies (IMAs) and the subsidy Operational Programmes (OPs) in the concretisation of their investments. More specific, the study aims into the acquisition of knowledge and information about important subjects of the Operational Programme “Competitiveness” - Action 2.11.2 that concern the modernisation and development of enterprises that belong to the Tertiary Sector of the Central Macedonia Region, such as: Programme’s contribution in the development of enterprises and the Greek economy, the entrepreneurs’ opinion about the Intermediary Management Agencies in the process of their investments’ completion and finally, the exploration of other interesting elements that had significantly contributed in the investments’ completion. This research constitutes a first effort to evaluate Operational Programmes of the 3rd Community Support Framework (CSF) that its results will be published, in opposition of the forecasted ex-ante or ex-post evaluations that are produced in the frames of each Intermediary Management Agency’s obligations on behalf of the empowered National and Community Committee. In other words, the results of this research will contribute in the activation of an essential dialogue and most important will contribute in the pursued more effective exploitation of the available resources. Taking into consideration the occasional reports of the empowered Community Authorities about Greek Intermediary Management Agencies’ weaknesses, among other countries, in the field of rational management and exploitation of the Community resources, we mainly consider particularly useful and topical the discoveries of this research facing the imminent launch of the 4th CSF Operational Programmes.peer-reviewe

A new model for the structure of the DACs and SACs regions in the Oe and Be stellar atmospheres

In this paper we present a new mathematical model for the density regions where a specific spectral line and its SACs/DACs are created in the Oe and Be stellar atmospheres. In the calculations of final spectral line function we consider that the main reasons of the line broadening are the rotation of the density regions creating the spectral line and its DACs/SACs, as well as the random motions of the ions. This line function is able to reproduce the spectral feature and it enables us to calculate some important physical parameters, such as the rotational, the radial and the random velocities, the Full Width at Half Maximum, the Gaussian deviation, the optical depth, the column density and the absorbed or emitted energy. Additionally, we can calculate the percentage of the contribution of the rotational velocity and the ions' random motions of the DACs/SACs regions to the line broadening. Finally, we present two tests and three short applications of the proposed model.Comment: 9 pages, 5 figures, accepted for publication in PAS

Current-limiting droop controller with fault-ride-through capability for grid-tied inverters

In this paper, the recently proposed current-limiting droop (CLD) controller for grid-connected inverters is enhanced in order to comply with the Fault-Ride-Through (FRT) requirements set by the Grid Code under grid voltage sags. The proposed version of the CLD extends the operation of the original CLD by fully utilizing the power capacity of the inverter under grid faults. It is analytically proven that during a grid fault, the inverter current increases but never violates a given maximum value. Based on this property, an FRT algorithm is proposed and embedded into the proposed control design to support the voltage of the grid. In contrast to the existing FRT algorithms that change the desired values of both the real and reactive power, the proposed method maximizes only the reactive power to support the grid voltage and the real power automatically drops due to the inherent current-limiting property. Extensive simulations are presented to compare the proposed control approach with the original CLD under a faulty grid

Les changements liés à l'âge et la différence de sexe dans la performance de natation chez les athlètes seniors

Master athletes have been widely used to examine the age-induced decline of human performance. However, so far very limited reviews are available consolidating the age-related differences in master swimming performance. The aim of the present review was to summarize existing knowledge about the age-related changes in three modalities of swimming performance (i.e., pool-swimming, open-water swimming and swim split in triathlons of different distances). In addition, the paradigm of freestyle swimming records from 50 to 1500mwas used to examine age-related differences and sex difference in performance for age groups 25–29 to 100–104 years. For this example of master freestyle swimmers, the sex difference was smaller in the longer events and increased significantly after the age of ∼70 years. In summary, master athletes competing in swimming as single discipline (i.e., pool-swimming and open-water) and in triathlon (i.e., swim split as first discipline) improved their performances across calendar years. The age-related performance decline in swimming seems to be specific to the discipline, the sex and the length of the swimming event.Les changements liés à l’âge et la différence de sexe dans la performance de natation chez les athlètes seniors. Les athlètes seniors ont été largement utilisés pour examiner le déclin de la performance humaine induit par l’âge. Cependant, à ce jour, des études très limitées sont disponibles, consolidant les différences de performances de nage des seniors liées à l’âge. Le but de la présente étude était de résumer les connaissances existantes sur les changements liés à l’âge de trois modalités de performance en natation (à savoir, la natation en piscine, la nage en eau libre et la natation divisée en triathlons de différentes distances). De plus, le cas des records de nage libre de 50 à 1500ma été utilisé pour examiner les différences liées à l’âge et la différence de performance entre les sexes pour les groupes d’âge partant de 25 à 29 ans jusqu’à 100 à 104 ans. En ce qui concerne le cas des nageurs seniors en eau libre, la différence de sexe était plus petite dans les épreuves plus longues et augmentait significativement après l’âge de 70 ans. En résumé, les athlètes seniors pratiquant la natation en tant que discipline unique (c’est-à-dire la natation en piscine et en eau libre) et le triathlon (c’est-àdire la division en natation comme première discipline) ont amélioré leurs performances au fil des années. La baisse de performance liée à l’âge en natation semble être spécifique à la discipline, au sexe et à la durée de la nage.info:eu-repo/semantics/publishedVersio

Comparative analysis of the core proteomes among the Pseudomonas major evolutionary groups reveals species-specific adaptations for Pseudomonas aeruginosa and Pseudomonas chlororaphis

The Pseudomonas genus includes many species living in diverse environments and hosts. It is important to understand which are the major evolutionary groups and what are the genomic/proteomic components they have in common or are unique. Towards this goal, we analyzed 494 complete Pseudomonas proteomes and identified 297 core-orthologues. The subsequent phylogenomic analysis revealed two well-defined species (Pseudomonas aeruginosa and Pseudomonas chlororaphis) and four wider phylogenetic groups (Pseudomonas fluorescens, Pseudomonas stutzeri, Pseudomonas syringae, Pseudomonas putida) with a sufficient number of proteomes. As expected, the genus-level core proteome was highly enriched for proteins involved in metabolism, translation, and transcription. In addition, between 39–70% of the core proteins in each group had a significant presence in each of all the other groups. Group-specific core proteins were also identified, with P. aeruginosa having the highest number of these and P. fluorescens having none. We identified several P. aeruginosa-specific core proteins (such as CntL, CntM, PlcB, Acp1, MucE, SrfA, Tse1, Tsi2, Tse3, and EsrC) that are known to play an important role in its pathogenicity. Finally, a holin family bacteriocin and a mitomycin-like biosynthetic protein were found to be core-specific for P. cholororaphis and we hypothesize that these proteins may confer a competitive advantage against other root-colonizers.</jats:p

Association between physical activity patterns and anthropometric characteristics of adults : an issue of public health?

The aim of this study was to evaluate the association between objectively measured daily physical activity (PA) and body fat mass (BF) and body mass index (BMI). A further aim was to analyse the variance of PA between quartiles of BF and BMI. Material and methods: A cross-sectional, observational study of 126 university students (53 males aged 20.46 ± 2.04 years and 73 female aged 19.69 ± 1.32 years) was conducted. Results: The female participants and PA characteristics explain 57.10% of BF variance and the model was statistically significant (F(6, 875) = 196.38; p = 0.001). BMI was also included in the model. Standard binary logistic regression was used to test the hypothesis that female sex and PA characteristics can influence overweight. The full model containing all variables was statistically significant (G2(6) = 58.598, p-value = 0.001). Analysis of variance between BF quartiles revealed statistically significant differences in male participants in light PA (p = 0.001; ES = 0.09), moderate PA (p = 0.001; ES = 0.042) and vigorous PA (p = 0.001; ES = 0.130). Conclusions: The statistical model in the regression analysis suggests that low and vigorous levels of PA explain 57% of BF variance in female participants.info:eu-repo/semantics/publishedVersio

Human-centered 2D/3D Video Content Analysis and Description

In this paper, we propose a way of using the AudioVisual Description Profile (AVDP) of the MPEG-7 standard for stereo video and multichannel audio content description. Our aim is to provide means of using AVDP in such a way, that 3D video and audio content can be correctly and consistently described. Since AVDP semantics do not include ways for dealing with 3D audiovisual content, a new semantic framework within AVDP is proposed and examples of using AVDP to describe the results of analysis algorithms on stereo video and multichannel audio content are presented