1,822 research outputs found
The jewel on the mountaintop: the European Southern Observatory through fifty years
No full textAuthored by ESO senior advisor Claus Madsen, the present book comprises 576 action-packed pages of ESO history and dramatic stories about the people behind the organisation. This is the ultimate historical account about ESO and its telescopes in the southern hemisphere, but also about a truly remarkable European success story in research. Spanning the range from the first telescopes to the future platforms of the next generation, it shows how the improvement of the telescopes leads to a continuously changing view of the Universe. With 150 photos and illustrations. Produced especially for ESO'
Henrik Berggren Jessen & Claus Madsen: Ildfast i krydsild – standhaftig skoleledelse i brændpunktet
No full text«Å være ildfast – altså å tåle sterk varme gjennom lengre tid uten å krakelere og gå i stykker – må være en viktig egenskap for en skoleleder, eller for den saks skyld for enhver leder» (s. 13). Dette er bokens definisjon av hva som kreves av en leder i kryssilden mellom ulike interesser i læringsorganisasjoner, og der treffer den relativt godt.
I boken «Ildfast i krydsild – standhaftig skoleledelse i brændpunktet» redegjør de danske forfatterne Henrik Berg Jessen og Claus Madsen for flere svært ulike perspektiver innen utdanningsledelse og management som har mer eller mindre sentrale i løpet av de siste to decenniene
Henrik Berggren Jessen & Claus Madsen: Ildfast i krydsild – standhaftig skoleledelse i brændpunktet
No full text«Å være ildfast – altså å tåle sterk varme gjennom lengre tid uten å krakelere og gå i stykker – må være en viktig egenskap for en skoleleder, eller for den saks skyld for enhver leder» (s. 13). Dette er bokens definisjon av hva som kreves av en leder i kryssilden mellom ulike interesser i læringsorganisasjoner, og der treffer den relativt godt.
I boken «Ildfast i krydsild – standhaftig skoleledelse i brændpunktet» redegjør de danske forfatterne Henrik Berg Jessen og Claus Madsen for flere svært ulike perspektiver innen utdanningsledelse og management som har mer eller mindre sentrale i løpet av de siste to decenniene.</jats:p
Une fascination pour le ciel austral
Get PDFL’Europe, pionnière en astronomie au siècle des lumières, s’est trouvée en difficulté face à la compétition des États-Unis au XXe siècle. En réponse à ce défi, pression financière et constructions d’infrastructures modernes de recherche ont amené la communauté scientifique européenne à se concerter et à s’organiser, bien au-delà d’une simple mise en place d’une nouvelle « machine » de recherche. Catherine Cesarsky et Claus Madsen expliquent comment l’Europe de l’astronomie au sol a su abolir les frontières et se fédérer en créant et développant l’Observatoire européen austral (ESO).The response of European astronomers to their loss of leadership in their science in the 20th century was to assemble and create ESO, the European Southern Observatory. In the 21st century, with the Very Large Telescope in operations, ALMA in construction and the E-Extremely Large Telescope under study, they are again on the front stage for cosmic discoveries
Parasitic copepods from Egyptian Red Sea fishes: Bomolochidae Claus, 1875
Get PDF© The Author(s) 2015
Open Access - This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The attached file is the published version of the article.NHM Repositor
FIGURE 3 in Distribution, phenology and host plants of Danish bees (Hymenoptera, Apoidea)
No full textFIGURE 3. Total number of bee individuals for each sex recorded as a function of half-month ((days 1-15 and days 16-31)) from January (J) through December (D). Peak season for bees in Denmark is from late May to early August, however, they can be found active from February 29 until October 21.Published as part of Rasmussen, Claus, Schmidt, Hans Thomsen & Madsen, Henning Bang, 2016, Distribution, phenology and host plants of Danish bees (Hymenoptera, Apoidea), pp. 1-100 in Zootaxa 4212 (1) on page 7, DOI: 10.11646/zootaxa.4212.1.1, http://zenodo.org/record/25300
Effect of Environment Size on Spatial Perception in Virtual Reality
Get PDFA trend of distance underestimations in Virtual Reality (VR) is well documented, but the reason still remains unclear. Therefore, this paper investigates the effect of differently sized Virtual Environments (VEs) on egocentric distance perception in VR as a potential influence. Verbal assessment, blind walking, and our own proposed method: walk and assess, were compared in an experiment, and blind walking was found to be the most accurate. A virtual replica of a real-life location was created as a transitional environment, while small (15m2), medium (35m2) and large (95m2) rooms were created to investigate the effect of VE size on spatial perception in VR. To establish the differences in estimations between the real world and VR when using blind walking, a study was conducted with the virtual replica and its real life counterpart at distances between 1 and 10 meters. Following this, the three distinct room sizes were used in an experiment to investigate the effect of the size of rooms on spatial perception in VR. The findings showed consistent underestimates of distances, and a trend for underestimation to grow as the distance grows was observed. Similarly, underestimates grew with the size of the environment
sj-pdf-1-jcb-10.1177_0271678X231168591 - Supplemental material for Kinetic models for estimating occupancy from single-scan PET displacement studies
No full textSupplemental material, sj-pdf-1-jcb-10.1177_0271678X231168591 for Kinetic models for estimating occupancy from single-scan PET displacement studies by Gjertrud Louise Laurell, Pontus Plavén-Sigray, Annette Johansen, Nakul Ravi Raval, Arafat Nasser, Clara Aabye Madsen, Jacob Madsen, Hanne Demant Hansen, Lene Lundgaard Donovan, Gitte Moos Knudsen, Adriaan A Lammertsma, R Todd Ogden, Claus Svarer and Martin Schain in Journal of Cerebral Blood Flow & Metabolism</p
Den danske checkliste over bier er blevet opdateret
No full textDen danske checkliste over bier har, ud over løbende at blive opdateret med nye arter for landet (bl.a. Madsen et al. 2021a, Madsen et al. 2021b), ikke overordnet været justeret siden udgivelsen af de fem checklisteartikler over den danske bi-fauna (Madsen & Calabuig 2008, Calabuig & Madsen 2009, Madsen & Calabuig 2010, 2011, 2012). Siden har nyere studier over mere komplekse ”artsgrupper” (grupper af arter eller arter vs. underarter) og museumsmateriale ført til justeringer af artsstatus ved nogle taxa og/eller korrektioner af arternes videnskabelige navne. Disse opdateringer og justeringer søges her udredt i forlængelse af den nyligt publicerede checkliste over bier og svirrefluer i EU (Reverté et al., 2023) og checkliste over bier kendt fra Tyskland (Scheuchl et al., 2023), GBIF og ITIS, Alexander et al. (2023), samt implementerede opdateringer af bl.a. den svenske checkliste over bier (Artdatabanken, 2023).Kort sammenfattet, udgår en art fra den danske liste (Lasioglossum sexnotatulum). Slægtsnavnet for tornbien justeres fra slægten Hoplosmia til en underslægt under Osmia og endelig ændres artsnavnet på to jordbier (Andrena) og tre keglebier (Coelioxys). Mere detaljeret baggrund for justeringerne fremgår ved de enkelte arter nedenfor
A Comparative Study of the Robustness of Two Pose Estimation Techniques
No full textThe paper presents an analysis of the stability of pose estimation. The stability is defined as sensitivity of the pose parameters towards noise in image features used for estimating pose. The specific emphasis of the analysis is on determining how the stability varies with viewpoint relative to an object, and to understand the relationships between object geometry, viewpoint and pose stability. Two pose estimation techniques are investigated. One uses a numerical scheme for finding pose parameters, the other is based on closed form solutions. Both are 'pose from tri-hedral vertices' techniques, which provide the rotation part of object pose based on orientations of three edge segments. The analysis is based on generalized sensitivity analysis propagating the uncertainty in edge segment orientations to the resulting effect on the pose parameters. It is shown that there is a pre-computable, generic relationship between viewpoint and pose stability, and that there is a drastic difference..
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