Search results for "DISTANCE"
showing 10 items of 1009 documents
E‐learning at work: theoretical underpinnings and pedagogical challenges
2005
PurposeFirst, to explore the application of e‐learning as a medium for workplace learning, as a form of adult learning and organisational learning from a theoretical point of view, second, to review empirical studies on recent solutions to pedagogical problems encountered in workplace learning in general and in e‐learning in particular, and finally, to consider the challenges facing the further development of e‐learning solutions targeted at the workplace.Design/methodology/approachThe paper reviews theories of adult learning, workplace learning and organisational learning and brings out main pedagogical implications of these theories from an e‐learning point of view. Some empirical studies…
A new technique to determine vertical dimension of occlusion from anthropometric measurement of interpupillary distance
2014
Background: A number of techniques are being practiced for the evaluation of VDO, but none of them is scientifically more accurate than other. Each method advocated has its own limitations. Objectives: The purpose of this study was to find correlation between vertical dimension of occlusion (VDO) and interpupillary distance (IPD). Material and Methods: A cross-sectional study was conducted on 400 dentate subjects comprising of 200 males and 200 females. Anthropometric measurement of VDO was recorded clinically using modified digital vernier caliper. Also, a standardized digital photograph of face was generated from the frontal aspect using a digital camera for the measurement of IPD in mill…
Ureteru akmeņu endoskopiskās ārstēšanas iespējas
2016
Ievads: Urīnakmeņu incidence pasaulē ir 1500-2000 gadījumi uz miljonu iedzīvotāju. Pēc statistikas datiem nierakmeņu izplatības rādītāji svārstās no 1% līdz 20%. Šī slimība ir novērojama pacientiem pārsvarā no 30 līdz 50 gadu vecumā. Pēc Eiropas Urologu asociācijas 2012. gada datiem nierakmeņu slimību sastop aptuveni 20% gadījumu no visām uroloģiskajām saslimšanām. Materiāli un metodes: Retrospektīvā pētījumā tika iekļauti 123 pacienti ar urolitiāzi, kuri ārstējās Paula Stradiņa klīniskā universitātes slimnīcā 4. uroloģijas nodaļā laika posmā no 2013. gada 1. janvāra līdz 2014. gada 31. decembrim. Tiek ievākti un analizēti sekojošie pacientu dati: pētījumu objekta skaits; vecums un to dzimu…
Candidate localness and voter choice in the 2015 General Election in England
2017
Previous research has demonstrated a significant relationship between the geographical distance from a voter to a candidate and the likelihood of the voter choosing that candidate. However, models of this relationship may be mis- or under-specified, by not taking into account voters’ perceptions of distance or not controlling for other possible factors related to a candidate’s ‘localness’ which may influence vote choice. Using a two-wave panel survey carried out during the 2015 UK General Election, this article tests a more fully specified alternative-specific multinomial probit model of candidate-voter distance. We show that, although the effect size is smaller than in previous tests, cand…
A high precision calorimeter for hunting the sterile neutrino in the SOX experiment
2019
Abstract A thermal calorimetric apparatus was designed, built and calibrated for measuring the activity of the artificial 144 Ce —144 Pr antineutrino source. This measurement will be performed at the Laboratori Nazionali del Gran Sasso in Italy, just before the source insertion in the tunnel under the Borexino detector and a precision better than 1% is required for a disappearance technique measurement in the SOX (Short distance neutrino Oscillation with BoreXino) project. In this work the apparatus is described and the most important results from the calibration measurements are shown, where the final precision of few per thousand is demonstrated.
The phylogeny of (Gentianaceae) and its colonization of the southern hemisphere as revealed by nuclear and chloroplast DNA sequence variation
2001
Abstract The generic circumscription and infrageneric phylogeny of Gentianella was analysed based on matK and ITS sequence variation. Our results suggested that Gentianella is polyphyletic and should be limited to species with only one nectary per petal lobe. Gentianella in such a circumscription is most closely related to one part of a highly polyphyletic Swertia. within uninectariate Gentianella two major groups could be recognized: 1) northern hemispheric species with vascularized fimbriae at the base of the corolla lobes, and 2) northern hemispheric, South American, and Austrlia/New Zealand species without vascularized fimbriae. When fimbriae are present in this latter group, they are n…
Phylogeny and quaternary history of the European montane/alpine endemicSoldanella(Primulaceae) based on ITS and AFLP variation
2001
Soldanella contains 16 species of herbaceous perennials that are endemic to the central and south European high mountains. The genus is ecogeographically subdivided into forest/montane and alpine species. Evolutionary relationships and large-scale biogeographic patterns were inferred from parsimony analyses of the internal transcribed spacer (ITS) regions of nuclear ribosomal DNA, and genetic distance analyses based on amplified fragment length polymorphism (AFLP) markers. The ITS region proved useful for examining subgeneric relationships and testing hypotheses on genus-wide divergence times, whereas the AFLP markers were suitable for studying relationships among closely related taxa and b…
Within-lake dynamics in the similarity of parasite assemblages of perch (Perca fluviatilis).
2005
Although parasite communities have been studied extensively in recent years, spatial and temporal variation in factors affecting the communities has received less attention. This paper examined the similarity of parasite assemblages of perch (Perca fluviatilis) in 18 locations within a single lake in relation to geographical distance and temporal dynamics in the host and parasite populations. We expected that in the present study-scale where distinct but potentially interacting host subpopulations could occur, similarity of the assemblages could be affected by seasonal dynamics in host movements particularly during the spawning period. Parasite species showed differences in infection levels…
Fixed point results under generalized c-distance with application to nonlinear fourth-order differential equation
2019
We consider the notion of generalized c-distance in the setting of ordered cone b-metric spaces and obtain some new fixed point results. Our results provide a more general statement, under which can be unified some theorems of the existing literature. In particular, we refer to the results of Sintunavarat et al. [W. Sintunavarat, Y.J. Cho, P. Kumam, Common fixed point theorems for c-distance in ordered cone metric spaces, Comput. Math. Appl. 62 (2011) 1969-1978]. Some examples and an application to nonlinear fourth-order differential equation are given to support the theory.
Axion cold dark matter: Status after Planck and BICEP2
2014
We investigate the axion dark matter scenario (ADM), in which axions account for all of the dark matter in the Universe, in light of the most recent cosmological data. In particular, we use the Planck temperature data, complemented by WMAP E-polarization measurements, as well as the recent BICEP2 observations of B-modes. Baryon Acoustic Oscillation data, including those from the Baryon Oscillation Spectroscopic Survey, are also considered in the numerical analyses. We find that, in the minimal ADM scenario, the full dataset implies that the axion mass m_a = 82.2 pm 1.1 {\mu}eV (corresponding to the Peccei-Quinn symmetry being broken at a scale f_a = (7.54 pm 0.10)*10^10 GeV), or m_a = 76.6 …