10,720 research outputs found
Exploiting tacit knowledge through knowledge management technologies
No full textThe purpose of this paper is to examine the contributions and suitability of the available knowledge management (KM) technologies, including the Web 2.0 for exploiting tacit knowledge. It proposes an integrated framework for extracting tacit knowledge in organisations, which includes Web 2.0 technologies, KM tools, organisational learning (OL) and Community of Practice (CoP). It reviews a comprehensive literature covering overview of KM theories, KM technologies and OL and identifies the current state of knowledge relating to tacit knowledge exploitation. The outcomes of the paper indicate that Internet and Web 2.0 technologies have stunning prospects for creating learning communities where tacit knowledge can be extracted from people. The author recommends that organisations should design procedures and embed them in their Web 2.0 collaborative platforms persuading employees to record their ideas and share them with other members. It is also recommended that no idea should be taken for granted in a learning community where tacit knowledge exploitation is pursued. It is envisaged that future research should adopt empirical approach involving Complex Adaptive Model for Tacit Knowledge Exploitation (CAMTaKE) and the Theory of Deferred Action in examining the effectiveness of KM technologies including Web 2.0 tools for tacit knowledge exploitation
Outcrop analogues: the good, the bad and the ugly. Journal of Mediterranean Earth Sciences
No full textThe amount of subsurface data available to characterize subsurface reservoirs and de-risk uncertainty at different scale of observation represents one of the main challenges in exploration and production. A sound-outcrop-based conceptual depositional model is key to reducing such uncertainties (Martinius, 2017; Rossi et al., 2017). Ancient and present-day analogues are extensively used to provide valuable information on geobody size, geometry and internal characterization representing a valuable tool in improving understanding of subsurface reservoir (Chiarella et al., 2012; Chiarella et al., 2016; Telesca et al., this volume). Analogue data can be classified in four key types: (i) soft data, which include information about the facies and their lateral and vertical relationship; (ii) hard data, which describe the dimensions and geometry of the geobody; (iii) training images, which record the dimensions, proportions and spatial relationship; and (iv) analogue production data, which provide data from direct subsurface production analogues (Howell et al., 2014). An important aspect that needs to be considered is the areal coverage of the outcrop in comparison with the subsurface reservoir - the typical size for an oil field is between 2 and 20 km, and wells are usually spaced from a few hundred metres to a few kilometres apart. Consequently despite the plethora of high-quality outcrops around the world, there are only a limited number that are large enough to make them suitable for the collection of data at a scale that is really suitable to understand reservoir geometries at a field or even interwell spacing (Howell et al., 2014). At the same time, for the few outcrops that are large enough to overcome the size of the typical oil field (e.g. Book Cliff and Karoo Basin) the identification of which part of the depositional system best represents the studied reservoir can be challenging. Therefore, not all analogues provide valuable information for reservoir characterisation. A step towards improving the applicability of outcrop analogues to subsurface case studies, has been the advent of Virtual Outcrop studies with the development of LiDAR and photogrammetric based acquisition systems. This has improved our ability to generate “reservoir models” of the outcrops, which can be flow simulated closing the loop between the outcrop and the subsurface (e.g. Enge and Howell, 2010; Fig. 1). Further, the generation of synthetic seismic data from outcrops (e.g. Bakke et al., 2008) has also helped to close the gap between the outcrop analogue and the subsurface dataset. However, it is important to note that no two systems are identical and therefore the ‘perfect’ analogue does not exist. What we strive for is to combine studies from several partial analogues and to improve the conceptual geological model. In that respect, it is important to have clear in mind the purpose and scale of your study in order to select the appropriate analogues to incorporate
Distance and mean citation for first-last author relationship in three resolutions (100 m, 1 km, and 1000 km).
No full text<p>Distance and mean citation for first-last author relationship in three resolutions (100 m, 1 km, and 1000 km).</p
Onderzoek naar oorzaak schade dijkvak Westhoek - Zwarte Haan (km 13,000 - km 19,800) te Friesland
No full textIn 2004 is er schade geconstateerd aan de asfaltbekleding op de dijk tussen Westhoek en Zwarte Haan. Deze schade heeft zich in het afgelopen jaar progressief voortgezet. De asfaltdijkbekleding op de dijk tussen Westhoek en Zwarte Haan is aangelegd in 1972 - 1973. De lengte van het tracé bedraagt 6,8 km. De ligging van het onderzochte dijktraject (km 13,000 - 19,800) is in bijlage 1 weergegeven. De bekleding sluit aan de onderzijde aan op een bekleding van los gestorte klinkers die gepenetreerd zijn met asfaltmastiek. De bekleding heeft een dikte van circa 0,25 m en loopt in de onderste 2 m in een scheg naar een dikte van circa 0,50 m. Het asfaltbeton is aangelegd op een onderlaag van zand. Onder het zand bevindt zich de oorspronkelijke dijkkern van slecht doorlatende grond.Asfaltbekledinge
Investigation of Dempster Highway Sinkholes: km 82 and Two Moose Lake
No full textThis report presents the results of a project that aims to understand and, if possible, recommend actions to remediate the issues caused by the formation of sinkholes at km 82 and km 102-103 of the Dempster Highway. At km 82, this has resulted in sudden collapse of the
right-hand side driving surface of the highway. Major sinkholes have been repaired at this location on at least two occasions (June 2014 and Aug 2014) and the culvert at the site was replaced in October 2014. Undated photos suggest earlier sinkholes have formed at this location (SRK Consulting, 2014). Subsidence was also repaired in August 2015. At km 102-103, there has been general subsidence and sinkhole formation along the left-hand side of the road. Subsidence between km 102 and 103 has been regularly repaired as part of routine highway
maintenance and is therefore not documented. At this site, Two-Moose Lake is now encroaching on the road embankment.Repor
Experimental validation of nonlinear Fourier transform-based Kerr-nonlinearity identification over a 1600km SSMF link
No full textRecently, a nonlinear Fourier transform-based Kerr-nonlinearity identification algorithm was demonstrated for a 1000 km NZDSF link with accuracy of 75%. Here, we demonstrate an accuracy of 99% over 1600 km SSMF. Reasons for improved accuracy are discussed.Accepted Author ManuscriptTeam Sander Wahl
Reproductive isolation among morphotypes of the Atlantic seastar species Zoroaster fulgens (Echinodermata:Asteroidea)
No full textZoroaster fulgens is a slope-dwelling seastar species that is distributed throughout the Atlantic Ocean. Studies into the population structure and systematics of marine animals have increasingly found that species with a reported cosmopolitan distribution are, in fact, collections of closely related cryptic or sibling species. In the Porcupine Seabight, three morphotypes of Z. fulgens can be found that have a distribution that is stratified by depth. This study investigates the genetic divergence between these morphotypes using sections of the cytochrome oxidase 1 (COI) and 16S regions of the mitochondrial genome. Bathymetrically separated morphotypes of Z. fulgens are reproductively isolated over distances of approximately 1 km while gene flow occurs among morphotypes, along isobaths, over distances of approximately 900 km. Reproductive isolation on the continental slope may have occurred as a result of selection exerted by gradients of depth-correlated physical factors, such as pressure and temperature. However, allopatric speciation with subsequent range expansion may also explain the observed patterns of genetic divergence. Further investigation of radiation within this group may provide important information on the evolution of slope species. Taxonomic revision of the genus is required
Comet 88P/HOWELL
No full texteditorial reviewedJ. Crovisier, P. Colom, N. Biver, D. Bockelee-Morvan, LESIA, Observatoire de Paris; and I. Cognard, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Universite d'Orleans, report: "While monitoring the 18-cm lines of OH in comet 88P/Howell at the Nancay radio telescope, we serendipitously observed the occultation of the radio source PKS 1416-15 by the comet on Aug. 15.69 UT. This point radio source, which has a flux of about 2 Jy at 18 cm, was then 2'.2 from the comet nucleus, corresponding to a projected distance of 125000 km. The 1667-MHz line area was then observed to be -250 +/- 25 mJy*km/s, enhanced by a factor of 5 with respect to the signal as averaged for +/- 6 days before/after the event. This can be explained by the OH maser amplification of the background radio source radiation. The OH production rate averaged before/after the occultation was estimated to be 3.3 x 10**28 molecules/s. A similar event was observed on 1989 Oct. 13 for comet C/1989 Q1 (Crovisier et al. 1989, IAUC 4882; Crovisier et al. 1992, A.Ap. 253, 286)." E. Jehin, STAR Institute, University of Liege, reports (together with Y. Moulane, J. Manfroid, F. Pozuelos, and D. Hutsemekers) that they obtained narrowband photometry of comet 88P with the robotic 0.6-m "Transiting Planets and Planetesimals Small Telescope" (TRAPPIST-North) at Oukaimden, Morocco, on Aug. 17 (with the comet at r = 1.42 AU and Delta = 1.31 AU), using the HB comet filters (cf. Farnham et al. 2000, Icarus 147, 180) that focus on seven cometary emissions and four continuum bands. Using a Haser model (with V_p = V_d = 1 km/s, for 10000 km and correcting for the phase angle) they computed the dust-production rate proxy (as explained on CBET 4691) by profile fitting and correcting for the phase angle: A(0)f[rho](R) = 372 +/- 9 cm. They determined the following molecular production rates: Q(OH) = 2.97 (+/- 0.17) x 10**28 molecules/s, Q(CN) = 4.86 (+/- 0.10) x 10**25 molecules/s, Q(C_2) = 5.59 (+/- 0.12) x 10**25 molecules/s. Selected recent visual total-magnitude and coma-diameter estimates: Apr. 15.46 UT, 14.4, 0'.8 (C. Wyatt, Walcha, NSW, Australia, 0.40-m reflector); 18.48, 13.9, 1' (P. Camilleri, Katherine, NT, Australia, 0.40-m reflector); May 10.39, 13.6, 0'.8 (Wyatt, 25-cm reflector); 21.87, 13.0, 0'.3 (W. Hasubick, Buchloe, Germany, 44-cm reflector); June 9.48, 12.2, 3' (Camilleri); 16.37, 11.7, 3' (Wyatt, 25-cm reflector); 20.94, 10.7, 4' (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); July 12.98, 11.2, 2' (M. Goiato, Aracatuba, Brazil, 0.22-m reflector); 18.43, 10.6, 3' (Camilleri); 24.91, 10.1, 3'.5 (Gonzalez); 30.37, 10.3, 4' (Wyatt, 25-cm reflector; moonlight); Aug. 8.98, 10.3, 3' (Goiato); 13.88, 9.4, 7' (Gonzalez); 19.48, 9.3, 4' (K. Yoshimoto, Yamaguchi, Japan, 20x100 binoculars); 23.92, 9.6, -- (J. G. de S. Aguiar, Campinas, Brazil, 25x100 binoculars; moonlight); 27.92, 9.4, -- (Aguiar, 0.27-m reflector)
Atheris matildae Menegon, Davenport & Howell, sp. nov.
No full textAtheris matildae Menegon, Davenport & Howell sp. nov. (Fig. 1 –3) Holotype. Adult male, MTSN 9344, collected in a forest fragment in Southern Tanzania, at about 1995 m by Omari Kibure and Obadia Mwaipungu in February 2009; fixed in 70 % EtOH, tissue fixed in 90 % EtOH. Paratypes. 2 adult males, MTSN 9399 and MTSN 9418 and an immature MTSN 9417 collected in February 2011 at the same locality as the holotype, by Michele Menegon, Tim Davenport and Sophy Machaga. Additional material. 10 specimens collected at the type locality between March and April 2011 and being kept alive for conservation purposes. 4 are males, 5 are females and 2 are immatures. Among them there is the adult female individual shown in Fig. 3. Type locality. Remote fragmented montane forest in Tanzania's Southern Highlands. Precise locality withheld until conservation insurance population secure. Additional information on the locality can be obtained for scientific purposes from the authors upon request. (www.atherismatildae.org) Diagnosis. Atheris matildae sp. nov. is distinguished from all other members of the genus except A. ceratophora by the presence of two to three very enlarged erect, hornlike, supraciliary scales. It is distinguished from A. ceratophora by the combination of the following morphological and molecular features, based on the data from 69 specimens from all over the known range of A. ceratophora: (1) its larger size, TL of A. matildae type is 643mm (the biggest male A. ceratophora ever recorded does not exceed 510mm TL), (2) higher count of maximum transverse head scales (max. 20 in A. ceratophora, 28 in A. matildae), (3) four subequal suprarostral scales in A. matildae, the two central ones of the same size and the outer ones double in size in A. ceratophora, (4) marked difference in dorsal scale microdermatoglyphic pattern (irregular smooth surface in A. ceratophora, presence of papillae-like ridges in A. matildae), (5) in A. matildae, an extensive black marking across the frontal part of the mouth, including part of nasal, rostral, mental and few infralabial scales is often present, the above described colour feature has not been recorded in the examined A. ceratophora specimens and photographs. Genetic divergence of mitochondrial gene cytochrome b between A. ceratophora collected at type locality and A. matildae expressed as actual substitution difference is 3.18 % based on uncorrected p-distance of 0.03180. Paratypes and additional material variation. Details and meristics for the type series are summarized in Table 1. A total of 13 specimens have been observed, three of them are paratypes. The most significant differences between holotype and paratype specimens are in body colouration (see Fig. 2). The young specimen MTSN 9417 tends to be more greenish, the zigzag ornamentation is more conspicuous and the top of the head is marbled in green/yellow. The two adult individuals, both males, are similar in colouration to holotype, with a back dorsum and a bright yellow zigzag dorsolateral pattern. Ten additional specimens have been recently collected and are being kept alive for conservation purposes. 5 are males, 5 are females, and 2 are young. A black patch around nasal, rostral, mental and first infralabials is present in most of the observed males but also in few females and immature individuals. Males in general tend to be darker with belly suffused with black. Adult females tend to be more yellow, in some cases with immaculate throat and belly; horn-like scales are yellow with black outer edges. Side of the head can be completely yellow or with black patches at the tip of the scales. In preservation the specimen retains the original colouration (see Fig. 1). FIGURE 2. A. matildae paratypes showing body shape, colouration and head details. Top - down: MTSN 9399; MTSN 9418 and MTSN 9417. FIGURE 3. Illustration showing the variation in colour of the rostral and chin area, The black patches are present in many individuals of both sexes. A. matildae A. matildae A. matildae A. matildae A. ceratophora Specimen number MTSN 9344 MTSN 9417 MTSN 9418 MTSN 9399 n = 53 Description of holotype. Adult male preserved in 70 % EtOH. Snout-vent length (SVL) 540.7 mm, tail 96.0 mm, rostral width 2.9 mm, rostral height 0.8 mm; eye diameter (vertical) 3.2 mm; snout to eye 3.3 mm. A heavybodied forest viper, sub-quadrangular in cross-section, with a rather thick prehensile tail (SVL/Tail approximately 5.7 times); head pear-shaped, with a very distinct neck, rounded snout and swollen supraorbital region that does bear two/three elongated, horn-like scales; eyes relatively large, laterally placed, and with a horizontal diameter approximately 3 / 4 of the snout length. Crown of head covered in small scales, slightly larger over the temporal region (maximum transverse head scales— 28); they bear a prominent keel and become mucronate over the head; the rostral is flattened, rectangular, about 3.5 times broader than high, contacting first supralabials and four small; unkeeled, roundish, subequal suprarostrals, nasal wider than high, with raised, embossed posterior edge, nostril circular and approximately in the centre of the nasal; internasals 5, all strongly keeled; interorbitals 9, keeled; circumoculars 16 – 16, not keeled but terminating in black blunt knobs; 1 row of suboculars present; circumoculars separated from nasals by two to three rows of feebly knobbed scales; a row of three irregular scales, bordering supralabials between nasal and lower circumoculars; supralabials 10 – 10, the first three smaller, and 6–8 with a swollen lower edge; infralabials 10 – 10, posteriormost with swollen upper edge and first in contact at the midline behind the mental; mental triangular, approximately twice as wide as deep; gulars bordering chin shields feeblykeeled, but prominently keeled towards the rictus; 2 preventrals, first largest; 150 ventrals; 49 undivided subcaudals (including spine); anal entire; 25 rows dorsal scales anteriorly, 26 rows at midbody, 19 rows posteriorly. FIGURE 4. Dorsal scale microdermatoglyphic pattern of A. matildae (A–B) and A. ceratophora: (C–D). Note in B the papillaelike ridges covering the keratin layers on the scale of A. matildae. Hemipenes. Both hemipenes are only partially everted. They resemble the A. ceratophora one as described by Emmrich (1997). The sulcus is bifurcate on a typically divided organ. The extreme basal area is naked, followed by an area with enlarged proximal spines, most prominently on the outer side of each lobe. Towards the apex, on the inner side of the sulcus, there are a few smaller scattered spines, while the distal area seems to be characterized by the lack of clearly differentiated ornamentation. A more detailed description of hemipenial morphology will be possible when a fully everted hemipenis becomes available for examination. FIGURE 6. The forest fragment in the Southern Highlands of Tanzania where A. matildae was collected, and a detail of the forest canopy. Colouration. Dorsally it appears as a black snake with bright yellow dorso-lateral zig-zag lines. Flanks are marbled in yellow. Dorsum of the head is almost entirely black with scattered yellow scales or groups of scales, sides of the head are mainly yellow with an irregular longitudinal black marking. An extensive black marking across the frontal part of the mouth, including part of nasal, rostral, mental and few infralabial scales is present, by contrast it delimitates an inverted pale triangle. Eyes are light olive green (in life). Throat is yellow; belly is pale yellow to greyish-green, suffused by black speckling; horn-like scales are yellow with black outer edges. In preservation the specimen retains the original colouration (see Fig. 1). Dorsal scale microdermatoglyphics. The surface microstructure of several scales from midbody and the last third of the body of two specimens of A. matildae (MTSN 9344, 9417) and three specimens of A. ceratophora from Usambara Mountains (MTSN 5117, 5118, 5121) were examined by scanning electron microscopy, in order to evaluate the intra- and inter-specific differences. Two-dimensional classes of microdermatoglyphics were identified; the coarser one consists of juxtaposed or imbricated layers of keratin with a raised edge, forming a ‘scaly background’. This layer is shared by both A. ceratophora and A. matildae. At greater magnification (4000 x) a further pattern of microdermatoglyphics is visible in A. matildae, where papillae-like ridges cover the entire surface of the keratin layer. The latter ornamentation is absent in A. ceratophora specimens from type locality. Distribution and conservation. Atheris matildae is currently known only from the type series and a few other individuals of both sexes, all collected in a remote montane forest fragment in the Southern Highlands. The site probably represents the remnants of a wider forested landscape, interspersed with plateau grasslands and possibly naturally isolated from other Southern Highland forest blocks. For this reason the forests are of great bio- logical value and now the focus of further exploration and conservation intervention. During the last decade the Southern Highlands have been the subject of extensive biological investigation by the Wildlife Conservation Society. However, this species has not been detected in any other areas. It is therefore probable that A. matildae is a rangerestricted forest species, now relying on just a few forest fragments. A. matildae has an extent of occurrence smaller than 100 km 2 with extent of occurrence, area of occupancy and quality of habitat in continuing decline. According to IUCN guidelines (IUCN 2010) therefore, we propose to list A. matildae as ‘Critically Endangered’ CR B 1 b(i,ii,iii). Further investigations are being carried out in order to collect more information on this magnificent snake, and a small breeding programme has been established (see www.atherismatildae.org). Etymology. Atheris matildae is named for TRBD's daughter Matilda Davenport, one of the next generation of herpetologists. We suggest the common name 'Matilda's Horned Viper'.Published as part of Menegon, Michele, Davenport, Tim R. B. & Howell, Kim M., 2011, Description of a new and critically endangered species of Atheris (Serpentes: Viperidae) from the Southern Highlands of Tanzania, with an overview of the country's tree viper fauna, pp. 43-54 in Zootaxa 3120 on pages 44-50, DOI: 10.5281/zenodo.27936
Potential for leverage between the quality management and knowledge management professional communities : an intellectual capital mapping
No full textThis research describes the problems facing two important professional communities,
Quality Management (QM) and Knowledge Management (KM), which face multiple
challenges in their efforts to impact the organisations in which they operate and
contribute significantly to their performance and financial results. The two
communities are positioned at very different points in their maturity life cycle. While
QM is an aging community that is trying to regain its relevancy, the KM community is
still in its infancy, and is struggling to mature. Many practitioners and academics
consider both to be "over promising and under delivering".
The aim of this research is to explore how the two communities can enhance their
effectiveness. As a theoretical framework the author used the concept of Intellectual
Capital, which is usually used in the context of formal organisations, and applied it to
the case of professional communities. The hypothesis states that the two
communities have complementary Intellectual Capitals, i. e. that the intangible assets
of each can be shared and exchanged through different patterns of interaction. An
investigation was conducted into whether the flows of such intangible assets between
Quality Management (QM) and Knowledge Management (KM) can increase their
organisational effectiveness.
The research surveyed the scientific as well as professional literature and classified
the evidence on QM/KM interactions into twelve patterns that cover the spectrum,
from complete ignorance of each other to full co-operation.
Two case studies are explored, where explicit efforts to encourage flows of
Intellectual Capital were demonstrated, one at a company level and the other at a
national level.
A unique methodology and visual tool, to map the Intellectual Capital of professional
communities, was developed and used to draw a generic map of the complementary
ICs of QM and KM and the potential flows between them, as perceived by a diverse
body of experts from both communities.
Finally, a series of (computer aided) focus groups were held with professionals.
Based on triangulation of the data between the 14 expert interviews, 2 in-depth case
studies, 68 focus group attendees and the literature, the following contributions to
knowledge were identified:
0 Creation of a new scheme to classify interactions between professional
communities.
O The application of the Intellectual Capital concept to professional
communities.
Q New insights into the situation of QM and KM communities using the
framework of Intellectual Capital, and the complementary nature of their
intangible assets.
Q New perspective on flows of Intellectual Capital between different entities
(in this case professional communities) as a way to increase the
effectiveness of both.
QA new methodology to self-assess and map Intellectual Capital
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