WorldWideScience

Sample records for denning range sizes

  1. Denning habits of free-ranging dogs reveal preference for human proximity

    Science.gov (United States)

    Sen Majumder, Sreejani; Paul, Manabi; Sau, Shubhra; Bhadra, Anindita

    2016-01-01

    Dens are crucial in the early development of many mammals, making den site selection an important component of parental care in such species. Resource availability and shelter from predators primarily govern den selection. Species inhabiting human-dominated landscapes typically den away from human disturbance, often shifting dens to avoid humans during the early life of their young. Domesticated dogs have evolved in human proximity over centuries, being bred and reared in human homes for generations. While pets rely on their owners for shelter and care, free-ranging dogs roam uncared, and typically whelp in dens. We conducted a study on 148 free-ranging dog dens in India to understand their denning habits. Distance from resources influenced den choice, but anthropogenic disturbance did not. Dens were found in areas of high human activity, and begging from humans was preferred over scavenging. A study on 15 pregnant females revealed that females actively searched for denning sites, rejecting several intermediate ones before selecting the final den. We propose that the obvious preference of dogs for denning close to humans is a behavioural adaptation that helps them to survive in the urban landscape, in spite of the high human induced mortality during the early life of pups. PMID:27535214

  2. Polar bear den survey, Arctic National Wildlife Range

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In conjunction with the Polar Bear Research Project being supervised by Mr. Jack Lentfer of the Bureau of Sport Fisheries and Wildlife two Polar Bear den surveys...

  3. Inversion of spheroid particle size distribution in wider size range and aspect ratio range

    Directory of Open Access Journals (Sweden)

    Tang Hong

    2013-01-01

    Full Text Available The non-spherical particle sizing is very important in the aerosol science, and it can be determined by the light extinction measurement. This paper studies the effect of relationship of the size range and aspect ratio range on the inversion of spheroid particle size distribution by the dependent mode algorithm. The T matrix method and the geometric optics approximation method are used to calculate the extinction efficiency of the spheroids with different size range and aspect ratio range, and the inversion of spheroid particle size distribution in these different ranges is conducted. Numerical simulation indicates that a fairly reasonable representation of the spheroid particle size distribution can be obtained when the size range and aspect ratio range are suitably chosen.

  4. Factors affecting date of implantation, parturition, and den entry estimated from activity and body temperature in free-ranging brown bears.

    Directory of Open Access Journals (Sweden)

    Andrea Friebe

    Full Text Available Knowledge of factors influencing the timing of reproduction is important for animal conservation and management. Brown bears (Ursus arctos are able to vary the birth date of their cubs in response to their fat stores, but little information is available about the timing of implantation and parturition in free-ranging brown bears. Body temperature and activity of pregnant brown bears is higher during the gestation period than during the rest of hibernation and drops at parturition. We compared mean daily body temperature and activity levels of pregnant and nonpregnant females during preimplantation, gestation, and lactation. Additionally we tested whether age, litter size, primiparity, environmental conditions, and the start of hibernation influence the timing of parturition. The mean date of implantation was 1 December (SD = 12, the mean date of parturition was 26 January (SD = 12, and the mean duration of the gestation period was 56 days (SD = 2. The body temperature of pregnant females was higher during the gestation and lactation periods than that of nonpregnant bears. The body temperature of pregnant females decreased during the gestation period. Activity recordings were also used to determine the date of parturition. The parturition dates calculated with activity and body temperature data did not differ significantly and were the same in 50% of the females. Older females started hibernation earlier. The start of hibernation was earlier during years with favorable environmental conditions. Dates of parturition were later during years with good environmental conditions which was unexpected. We suggest that free-ranging pregnant brown bears in areas with high levels of human activities at the beginning of the denning period, as in our study area, might prioritize investing energy in early denning than in early parturition during years with favorable environmental conditions, as a strategy to prevent disturbances caused by human.

  5. Factors affecting date of implantation, parturition, and den entry estimated from activity and body temperature in free-ranging brown bears.

    Science.gov (United States)

    Friebe, Andrea; Evans, Alina L; Arnemo, Jon M; Blanc, Stéphane; Brunberg, Sven; Fleissner, Günther; Swenson, Jon E; Zedrosser, Andreas

    2014-01-01

    Knowledge of factors influencing the timing of reproduction is important for animal conservation and management. Brown bears (Ursus arctos) are able to vary the birth date of their cubs in response to their fat stores, but little information is available about the timing of implantation and parturition in free-ranging brown bears. Body temperature and activity of pregnant brown bears is higher during the gestation period than during the rest of hibernation and drops at parturition. We compared mean daily body temperature and activity levels of pregnant and nonpregnant females during preimplantation, gestation, and lactation. Additionally we tested whether age, litter size, primiparity, environmental conditions, and the start of hibernation influence the timing of parturition. The mean date of implantation was 1 December (SD = 12), the mean date of parturition was 26 January (SD = 12), and the mean duration of the gestation period was 56 days (SD = 2). The body temperature of pregnant females was higher during the gestation and lactation periods than that of nonpregnant bears. The body temperature of pregnant females decreased during the gestation period. Activity recordings were also used to determine the date of parturition. The parturition dates calculated with activity and body temperature data did not differ significantly and were the same in 50% of the females. Older females started hibernation earlier. The start of hibernation was earlier during years with favorable environmental conditions. Dates of parturition were later during years with good environmental conditions which was unexpected. We suggest that free-ranging pregnant brown bears in areas with high levels of human activities at the beginning of the denning period, as in our study area, might prioritize investing energy in early denning than in early parturition during years with favorable environmental conditions, as a strategy to prevent disturbances caused by human.

  6. Wide size range fast integrated mobility spectrometer

    Science.gov (United States)

    Wang, Jian

    2013-10-29

    A mobility spectrometer to measure a nanometer particle size distribution is disclosed. The mobility spectrometer includes a conduit and a detector. The conduit is configured to receive and provide fluid communication of a fluid stream having a charged nanometer particle mixture. The conduit includes a separator section configured to generate an electrical field of two dimensions transverse to a dimension associated with the flow of the charged nanometer particle mixture through the separator section to spatially separate charged nanometer particles of the charged nanometer particle mixture in said two dimensions. The detector is disposed downstream of the conduit to detect concentration and position of the spatially-separated nanometer particles.

  7. Range size: Disentangling Current Traits and Phylogenetic and Biogeographic Factors

    NARCIS (Netherlands)

    Bohning-Gaese, K.; Caprano, T.; van Ewijk, K.; Veith, M.K.H.

    2006-01-01

    The range size of a species can be determined by its current traits and by phylogenetic and biogeographic factors. However, only rarely have these factors been studied in combination. We use data on the geographic range sizes of all 26 Sylvia warblers to explicitly test whether range size was

  8. Home range size variation in female arctic grizzly bears relative to reproductive status and resource availability.

    Directory of Open Access Journals (Sweden)

    Mark A Edwards

    Full Text Available The area traversed in pursuit of resources defines the size of an animal's home range. For females, the home range is presumed to be a function of forage availability. However, the presence of offspring may also influence home range size due to reduced mobility, increased nutritional need, and behavioral adaptations of mothers to increase offspring survival. Here, we examine the relationship between resource use and variation in home range size for female barren-ground grizzly bears (Ursus arctos of the Mackenzie Delta region in Arctic Canada. We develop methods to test hypotheses of home range size that address selection of cover where cover heterogeneity is low, using generalized linear mixed-effects models and an information-theoretic approach. We found that the reproductive status of female grizzlies affected home range size but individually-based spatial availability of highly selected cover in spring and early summer was a stronger correlate. If these preferred covers in spring and early summer, a period of low resource availability for grizzly bears following den-emergence, were patchy and highly dispersed, females travelled farther regardless of the presence or absence of offspring. Increased movement to preferred covers, however, may result in greater risk to the individual or family.

  9. Home range size variation in female arctic grizzly bears relative to reproductive status and resource availability.

    Science.gov (United States)

    Edwards, Mark A; Derocher, Andrew E; Nagy, John A

    2013-01-01

    The area traversed in pursuit of resources defines the size of an animal's home range. For females, the home range is presumed to be a function of forage availability. However, the presence of offspring may also influence home range size due to reduced mobility, increased nutritional need, and behavioral adaptations of mothers to increase offspring survival. Here, we examine the relationship between resource use and variation in home range size for female barren-ground grizzly bears (Ursus arctos) of the Mackenzie Delta region in Arctic Canada. We develop methods to test hypotheses of home range size that address selection of cover where cover heterogeneity is low, using generalized linear mixed-effects models and an information-theoretic approach. We found that the reproductive status of female grizzlies affected home range size but individually-based spatial availability of highly selected cover in spring and early summer was a stronger correlate. If these preferred covers in spring and early summer, a period of low resource availability for grizzly bears following den-emergence, were patchy and highly dispersed, females travelled farther regardless of the presence or absence of offspring. Increased movement to preferred covers, however, may result in greater risk to the individual or family.

  10. Apparatus for handling micron size range particulate material

    Science.gov (United States)

    Friichtenicht, J. F.; Roy, N. L. (Inventor)

    1968-01-01

    An apparatus for handling, transporting, or size classifying comminuted material was described in detail. Electrostatic acceleration techniques for classifying particles as to size in the particle range from 0.1 to about 100 microns diameter were employed.

  11. Climate and topography explain range sizes of terrestrial vertebrates

    Science.gov (United States)

    Li, Yiming; Li, Xianping; Sandel, Brody; Blank, David; Liu, Zetian; Liu, Xuan; Yan, Shaofei

    2016-05-01

    Identifying the factors that influence range sizes of species provides important insight into the distribution of biodiversity, and is crucial for predicting shifts in species ranges in response to climate change. Current climate (for example, climate variability and climate extremes), long-term climate change, evolutionary age, topographic heterogeneity, land area and species traits such as physiological thermal limits, dispersal ability, annual fecundity and body size have been shown to influence range size. Yet, few studies have examined the generality of each of these factors among different taxa, or have simultaneously evaluated the strength of relationships between range size and these factors at a global scale. We quantify contributions of these factors to range sizes of terrestrial vertebrates (mammals, birds and reptiles) at a global scale. We found that large-ranged species experience greater monthly extremes of maximum or minimum temperature within their ranges, or occur in areas with higher long-term climate velocity and lower topographic heterogeneity or lower precipitation seasonality. Flight ability, body mass and continent width are important only for particular taxa. Our results highlight the importance of climate and topographic context in driving range size variation. The results suggest that small-range species may be vulnerable to climate change and should be the focus of conservation efforts.

  12. Dynamic Range Size Analysis of Territorial Animals: An Optimality Approach.

    Science.gov (United States)

    Tao, Yun; Börger, Luca; Hastings, Alan

    2016-10-01

    Home range sizes of territorial animals are often observed to vary periodically in response to seasonal changes in foraging opportunities. Here we develop the first mechanistic model focused on the temporal dynamics of home range expansion and contraction in territorial animals. We demonstrate how simple movement principles can lead to a rich suite of range size dynamics, by balancing foraging activity with defensive requirements and incorporating optimal behavioral rules into mechanistic home range analysis. Our heuristic model predicts three general temporal patterns that have been observed in empirical studies across multiple taxa. First, a positive correlation between age and territory quality promotes shrinking home ranges over an individual's lifetime, with maximal range size variability shortly before the adult stage. Second, poor sensory information, low population density, and large resource heterogeneity may all independently facilitate range size instability. Finally, aggregation behavior toward forage-rich areas helps produce divergent home range responses between individuals from different age classes. This model has broad applications for addressing important unknowns in animal space use, with potential applications also in conservation and health management strategies.

  13. Global patterns of geographic range size in birds.

    Directory of Open Access Journals (Sweden)

    C David L Orme

    2006-07-01

    Full Text Available Large-scale patterns of spatial variation in species geographic range size are central to many fundamental questions in macroecology and conservation biology. However, the global nature of these patterns has remained contentious, since previous studies have been geographically restricted and/or based on small taxonomic groups. Here, using a database on the breeding distributions of birds, we report the first (to our knowledge global maps of variation in species range sizes for an entire taxonomic class. We show that range area does not follow a simple latitudinal pattern. Instead, the smallest range areas are attained on islands, in mountainous areas, and largely in the southern hemisphere. In contrast, bird species richness peaks around the equator, and towards higher latitudes. Despite these profoundly different latitudinal patterns, spatially explicit models reveal a weak tendency for areas with high species richness to house species with significantly smaller median range area. Taken together, these results show that for birds many spatial patterns in range size described in geographically restricted analyses do not reflect global rules. It remains to be discovered whether global patterns in geographic range size are best interpreted in terms of geographical variation in species assemblage packing, or in the rates of speciation, extinction, and dispersal that ultimately underlie biodiversity.

  14. Indetermination of particle sizing by laser diffraction in the anomalous size ranges

    Science.gov (United States)

    Pan, Linchao; Ge, Baozhen; Zhang, Fugen

    2017-09-01

    The laser diffraction method is widely used to measure particle size distributions. It is generally accepted that the scattering angle becomes smaller and the angles to the location of the main peak of scattered energy distributions in laser diffraction instruments shift to smaller values with increasing particle size. This specific principle forms the foundation of the laser diffraction method. However, this principle is not entirely correct for non-absorbing particles in certain size ranges and these particle size ranges are called anomalous size ranges. Here, we derive the analytical formulae for the bounds of the anomalous size ranges and discuss the influence of the width of the size segments on the signature of the Mie scattering kernel. This anomalous signature of the Mie scattering kernel will result in an indetermination of the particle size distribution when measured by laser diffraction instruments in the anomalous size ranges. By using the singular-value decomposition method we interpret the mechanism of occurrence of this indetermination in detail and then validate its existence by using inversion simulations.

  15. Geographic range size and determinants of avian species richness

    DEFF Research Database (Denmark)

    Jetz, Walter; Rahbek, Carsten

    2002-01-01

    Geographic patterns in species richness are mainly based on wide-ranging species because their larger number of distribution records has a disproportionate contribution to the species richness counts. Here we demonstrate how this effect strongly influences our understanding of what determines...... species richness. Using both conventional and spatial regression models, we show that for sub-Saharan African birds, the apparent role of productivity diminishes with decreasing range size, whereas the significance of topographic heterogeneity increases. The relative importance of geometric constraints...... from the continental edge is moderate. Our findings highlight the failure of traditional species richness models to account for narrow-ranging species that frequently are also threatened....

  16. Geographic range size and extinction risk assessment in nomadic species

    Science.gov (United States)

    Runge, Claire A; Tulloch, Ayesha; Hammill, Edd; Possingham, Hugh P; Fuller, Richard A

    2015-01-01

    Geographic range size is often conceptualized as a fixed attribute of a species and treated as such for the purposes of quantification of extinction risk; species occupying smaller geographic ranges are assumed to have a higher risk of extinction, all else being equal. However many species are mobile, and their movements range from relatively predictable to-and-fro migrations to complex irregular movements shown by nomadic species. These movements can lead to substantial temporary expansion and contraction of geographic ranges, potentially to levels which may pose an extinction risk. By linking occurrence data with environmental conditions at the time of observations of nomadic species, we modeled the dynamic distributions of 43 arid-zone nomadic bird species across the Australian continent for each month over 11 years and calculated minimum range size and extent of fluctuation in geographic range size from these models. There was enormous variability in predicted spatial distribution over time; 10 species varied in estimated geographic range size by more than an order of magnitude, and 2 species varied by >2 orders of magnitude. During times of poor environmental conditions, several species not currently classified as globally threatened contracted their ranges to very small areas, despite their normally large geographic range size. This finding raises questions about the adequacy of conventional assessments of extinction risk based on static geographic range size (e.g., IUCN Red Listing). Climate change is predicted to affect the pattern of resource fluctuations across much of the southern hemisphere, where nomadism is the dominant form of animal movement, so it is critical we begin to understand the consequences of this for accurate threat assessment of nomadic species. Our approach provides a tool for discovering spatial dynamics in highly mobile species and can be used to unlock valuable information for improved extinction risk assessment and conservation

  17. Leopard range size and conservation area size in the southern Kalahari

    Directory of Open Access Journals (Sweden)

    Jacobus du P. Bothma

    2012-01-01

    Full Text Available The range use patterns of adult leopards were used to examine the impact of environmental quality on conservation area size in the arid south-western portion of the Kgalagadi Transfrontier Park in southern Africa. The ranges of the leopards are the largest recorded in the world, with a mean size of 2104.4 km2 (SEM 995.95 km2 for males and 1258.5 km2 (SEM 541.50 km2 for females. Overlaps in range use within and between the sexes and the size of this conservation area make it possible to sustain a genetically viable population of leopards in this arid environment.Conservation implications: When establishing conservation areas that contain large carnivores in arid and semi-arid regions, prey abundance and range use should be considered for the area to be able to sustain viable populations of such carnivores. The results emphasise the importance of establishing large transfrontier conservation areas where individual conservation areas are too small to do so. This study is the first to do so for leopards in southern Africa.

  18. Den unge Heidegger

    DEFF Research Database (Denmark)

    Den første antologi på dansk om den unge Heideggers skrifter og udviklingen før Væren og tid......Den første antologi på dansk om den unge Heideggers skrifter og udviklingen før Væren og tid...

  19. Den performative by

    DEFF Research Database (Denmark)

    Samson, Kristine

    2012-01-01

    Den performative by omhandler den æstetiske og affektive drejning, der finder sted inden for kulturel byudvikling i øjeblikket......Den performative by omhandler den æstetiske og affektive drejning, der finder sted inden for kulturel byudvikling i øjeblikket...

  20. Den gode argumentations anatomi

    DEFF Research Database (Denmark)

    Kock, Christian Erik J

    2013-01-01

    God argumentation har tre dimensioner: Den er faktuelt retvisende, den er relevant, og den er vægtig. Desværre slipper politikerne ofte af sted med mangelfuld argumentation fordi de forklæder den godt. Derfor får du her de vigtigste redskaber til at spotte uskikkene i politisk argumentation...

  1. Den gode argumentations anatomi

    DEFF Research Database (Denmark)

    Kock, Christian Erik J

    2013-01-01

    God argumentation har tre dimensioner: Den er faktuelt retvisende, den er relevant, og den er vægtig. Desværre slipper politikerne ofte af sted med mangelfuld argumentation fordi de forklæder den godt. Derfor får du her de vigtigste redskaber til at spotte uskikkene i politisk argumentation...

  2. Collectie Van den Bree

    NARCIS (Netherlands)

    Voerman, Gerrit; van den Bree, R.A.P.; Koole, Ruud

    1988-01-01

    Plaatsingslijst behorende bij het persoonlijke archief van R.A.P. van den Bree, betrekking hebbende op de Evangelische Volkspartij {EVP) (1979-1986), opgesteld door R.A.P. van den Bree en G. Voerman, 1987

  3. Are range-size distributions consistent with species-level heritability?

    DEFF Research Database (Denmark)

    Borregaard, Michael Krabbe; Gotelli, Nicholas; Rahbek, Carsten

    2012-01-01

    been that it is not compatible with the observed shape of present-day species range-size distributions (SRDs), a claim that has never been tested. To assess this claim, we used forward simulation of range-size evolution in clades with varying degrees of range-size heritability, and compared the output...... of three different models to the range-size distribution of the South American avifauna. Although there were differences among the models, a moderate-to-high degree of range-size heritability consistently leads to SRDs that were similar to empirical data. These results suggest that range-size heritability......The concept of species-level heritability is widely contested. Because it is most likely to apply to emergent, species-level traits, one of the central discussions has focused on the potential heritability of geographic range size. However, a central argument against range-size heritability has...

  4. Idealismen og dens kritikere

    DEFF Research Database (Denmark)

    Huggler, Jørgen

    2006-01-01

    En idéhistorisk redegørelse for filosofien i tiden mellem 1789 og 1857 - med hovedvægt på kritikken af den franske revolution, den tyske idealisme (Fichte, Schelling, Hegel) samt positivismen i Frankrig.......En idéhistorisk redegørelse for filosofien i tiden mellem 1789 og 1857 - med hovedvægt på kritikken af den franske revolution, den tyske idealisme (Fichte, Schelling, Hegel) samt positivismen i Frankrig....

  5. Den canadiske model

    DEFF Research Database (Denmark)

    Böss, Michael

    2009-01-01

    Det har altid været en amerikansk fordom, at Canada er et kedeligt land. Men i lyset af den finansielle krise, er den fordom sværere at holde fast i. Nabolandet mod nord, hvor hverken socialisme eller radikal liberalisme har nydt stor udbredelse, og hvor den finansielle sektor i lang tid har være...

  6. dens psykologi

    DEFF Research Database (Denmark)

    Sørensen, Mariann B.

    2011-01-01

    I kapitlet beskrives psykologiens forhold til og behandling af døden. Der er fokus på en psykoanalytisk og en eksistentialistisk tilgang. Den klassiske teori om dødens forløb repræsenteret af Elisabeth Kübler-Ross diskuteres i lyset af nyere teorier som Terror Management Theory og Meaning Managem...

  7. Abundance-range size relationships in stream vegetation in Denmark

    DEFF Research Database (Denmark)

    Riis, Tenna; Sand-Jensen, Kaj

    2002-01-01

    such asobligatory submerged or amphibious species. The amphibious species, which caneasily disperse by seeds between stream systems and by vegetative growth frompermanent bank populations to the open streambed, had a significantly strongerabundance-range relationship than obligatory submerged species probably due......Streams experience a constant redistribution of species and in-streamplant stands due to the extensive disturbance caused by flow variation, highcontinuity of habitats and efficient dispersal in the stream network. Theseconditions increase the homogeneity of environmental conditions...... tomore effective dispersal. The importance of metapopulation dynamics was alsosupported by the fact that species in seven of the ten stream systems withmultiple localities showed a stronger positive relationship than the overallrelationship for all streams, while the relationship for distinct...

  8. Den kommunikerende organisation

    DEFF Research Database (Denmark)

    Tække, Jesper

    2006-01-01

    samtidig tilbydes optimale muligheder for at få opfyldt individuelle behov og karrieremuligheder. For at en organisation skal kunne korrigere sig i forhold til de krav den konfronteres med, må der kunne fremstilles et adækvat billede af den. Det vil sige at dens faktiske kommunikationsprocesser må kunne...... drages frem i lyset på en måde så hensigtsmæssigheder og uhensigtsmæssigheder kan iagttages og selv blive objekt for reflekteret organisationskommunikation. Dette paper giver et udkast til en analysestrategi, hvormed der kan tegnes et billede af den enkelte organisation ud fra hvordan dens enkelte og...

  9. Home is where the shell is: predicting turtle home range sizes.

    Science.gov (United States)

    Slavenko, Alex; Itescu, Yuval; Ihlow, Flora; Meiri, Shai

    2016-01-01

    Home range is the area traversed by an animal in its normal activities. The size of home ranges is thought to be tightly linked to body size, through size effect on metabolic requirements. Due to the structure of Eltonian food pyramids, home range sizes of carnivores are expected to exceed those of herbivorous species. The habitat may also affect home range size, with reduced costs of locomotion or lower food abundance in, for example, aquatic habitats selecting for larger home ranges. Furthermore, home range of males in polygamous species may be large due to sexual selection for increased reproductive output. Comparative studies on home range sizes have rarely been conducted on ectotherms. Because ectotherm metabolic rates are much lower than those of endotherms, energetic considerations of metabolic requirements may be less important in determining the home range sizes of the former, and other factors such as differing habitats and sexual selection may have an increased effect. We collected literature data on turtle home range sizes. We used phylogenetic generalized least squares analyses to determine whether body mass, sex, diet, habitat and social structure affect home range size. Turtle home range size increases with body mass. However, body mass explains relatively little of the variation in home range size. Aquatic turtles have larger home ranges than semiaquatic species. Omnivorous turtles have larger home ranges than herbivores and carnivores, but diet is not a strong predictor. Sex and social structure are unrelated to home range size. We conclude that energetic constraints are not the primary factor that determines home range size in turtles, and energetic costs of locomotion in different habitats probably play a major role. © 2015 The Authors. Journal of Animal Ecology © 2015 British Ecological Society.

  10. Den moderne patient

    DEFF Research Database (Denmark)

    Lassen, Trine

    2012-01-01

    Kapitlet indkredser, hvordan vi som sundhedsprofessionelle kan forklare den moderne patient. I særdeleshed lægges vægt på definerende faktorer i skabelsen af den patient vi møder i sundhedsvæsnet i dag. Kapitlet giver forskellige teoretiske bud på, hvordan man som sundhedsprofessionel kan anskue...... den moderne, nutidige patienter samt en kortere beskrivelse af, hvordan patienten tidligere er blev anskuet....

  11. "Den onde kvinde"

    DEFF Research Database (Denmark)

    Holst, Søren

    2002-01-01

    Et af Dødehavsskrifterne, af den første udgiver kaldet "Den onde kvindes rænker" (4Q184), beskriver en svigefuld kvinde, der lokker fromme mænd i fordærv. Artiklen gennemgår tekstens fortolkningshistorie og påviser den rolle, det har spillet for læsningen, at teksten a priori er blevet opfattet s...

  12. Den situationsbestemte bolig

    DEFF Research Database (Denmark)

    Duelund Mortensen, Peder

    2010-01-01

    Boligen er en del af vores forbrugsmønster, mere og mere uforudsigeligt og præget af tilfældigheder, stemninger og den situation, den enkelte befinder sig i. Dette stiller forskellige krav til den samme bolig, krav om individuel fortolkning, fleksibilitet og åbne anvendelsesmuligheder. Ud fra ana...... analyser af boliger i Pærehaven og VM-huset karakteriseres boligen som et dynamisk projekt rettet mod opbygning af identitet og arkitektonisk kvalitet....

  13. Den inkluderende skole

    DEFF Research Database (Denmark)

    Hedegaard Hansen, Janne

    2009-01-01

    Artiklen tager afsæt i en forståelse af inklusion som den enkelte elevs ret til deltagelse i de eksisterende fællesskaber, forstået som de læringsrum, der bedst muligt tilgodeser den enkelte elevs særlige behov. I artiklen diskuteres hvilke nødvendige forandringer det fordrer i den pædagogiske pr...

  14. Den Danske Regnskabsordbog

    DEFF Research Database (Denmark)

    Nielsen, Sandro; Mourier, Lise; Bergenholtz, Henning

    Den Danske Regnskabsordbog har 4.100 opslagsord og ca. 15.000 ordforbindelser. Ordbøgerne bygger primært på den gældende danske årsregnskabslov, danske regnskabsvejledninger og internationale regnskabsstandarder (IAS/IFRS).......Den Danske Regnskabsordbog har 4.100 opslagsord og ca. 15.000 ordforbindelser. Ordbøgerne bygger primært på den gældende danske årsregnskabslov, danske regnskabsvejledninger og internationale regnskabsstandarder (IAS/IFRS)....

  15. Den store skandinaviske redningsaktion

    DEFF Research Database (Denmark)

    Christensen, Claus Bundgård

    2015-01-01

    Historikeren Bo Lidegaard fortæller flot den store historie om den forbløffende og komplicerede skandinaviske redning af fanger fra Hitlers koncentrationslejre. En historie, der samtidig berører alvorlige moralske spørgsmål.......Historikeren Bo Lidegaard fortæller flot den store historie om den forbløffende og komplicerede skandinaviske redning af fanger fra Hitlers koncentrationslejre. En historie, der samtidig berører alvorlige moralske spørgsmål....

  16. Den Danske Regnskabsordbog

    DEFF Research Database (Denmark)

    Nielsen, Sandro; Mourier, Lise; Bergenholtz, Henning

    Den Danske Regnskabsordbog har 4.100 opslagsord og ca. 15.000 ordforbindelser. Ordbøgerne bygger primært på den gældende danske årsregnskabslov, danske regnskabsvejledninger og internationale regnskabsstandarder (IAS/IFRS).......Den Danske Regnskabsordbog har 4.100 opslagsord og ca. 15.000 ordforbindelser. Ordbøgerne bygger primært på den gældende danske årsregnskabslov, danske regnskabsvejledninger og internationale regnskabsstandarder (IAS/IFRS)....

  17. Dispersal, niche breadth and population extinction: colonization ratios predict range size in North American dragonflies.

    Science.gov (United States)

    McCauley, Shannon J; Davis, Christopher J; Werner, Earl E; Robeson, Michael S

    2014-07-01

    Species' range sizes are shaped by fundamental differences in species' ecological and evolutionary characteristics, and understanding the mechanisms determining range size can shed light on the factors responsible for generating and structuring biological diversity. Moreover, because geographic range size is associated with a species' risk of extinction and their ability to respond to global changes in climate and land use, understanding these mechanisms has important conservation implications. Despite the hypotheses that dispersal behaviour is a strong determinant of species range areas, few data are available to directly compare the relationship between dispersal behaviour and range size. Here, we overcome this limitation by combining data from a multispecies dispersal experiment with additional species-level trait data that are commonly hypothesized to affect range size (e.g. niche breadth, local abundance and body size.). This enables us to examine the relationship between these species-level traits and range size across North America for fifteen dragonfly species. Ten models based on a priori predictions about the relationship between species traits and range size were evaluated and two models were identified as good predictors of species range size. These models indicated that only two species' level traits, dispersal behaviour and niche breadth were strongly related to range size. The evidence from these two models indicated that dragonfly species that disperse more often and further had larger North American ranges. Extinction and colonization dynamics are expected to be a key linkage between dispersal behaviour and range size in dragonflies. To evaluate how extinction and colonization dynamics among dragonflies were related to range size we used an independent data set of extinction and colonization rates for eleven dragonfly species and assessed the relationship between these populations rates and North American range areas for these species. We found a

  18. Home range sizes for burchell's zebra equus burchelli antiquorum from the Kruger National Park

    Directory of Open Access Journals (Sweden)

    G.L. Smuts

    1975-07-01

    Full Text Available Annual home range sizes were determined for 49 marked zebra family groups in the Kruger National Park. Sizes varied from 49 to 566 sq. km, the mean for the Park being 164 square kilometre. Mean home range sizes for different zebra sub-populations and biotic areas were found to differ considerably. Present herbivore densities have not influenced intra- and inter-specific tolerance levels to the extent that home range sizes have increased. Local habitat conditions, and particularly seasonal vegetational changes, were found to have the most profound influence on the shape and mean size of home ranges. The large home range sizes obtained in the Kruger Park, when compared to an area such as the Ngorongoro Crater, can be ascribed to a lower carrying capacity with respect to zebra, large portions of the habitat being sub-optimal, either seasonally or annually.

  19. Sex differences in spatial ability: a test of the range size hypothesis in the order Carnivora

    OpenAIRE

    2011-01-01

    Sex differences in spatial cognition have been reported for many species ranging from voles to humans. The range size hypothesis predicts that sex differences in spatial ability will only occur in species in which the mating system selects for differential range size. Consistent with this prediction, we observed sex differences in spatial ability in giant pandas, a promiscuous species in which males inhabit larger ranges than females, but did not observe sex differences in Asian small-clawed ...

  20. Den lille levnedsmiddeltabel

    DEFF Research Database (Denmark)

    Saxholt, Erling; Fagt, Sisse; Matthiessen, Jeppe;

    Den lille levnedsmiddeltabel er en oversigt over indholdet af næringsstoffer i næsten 600 af de mest anvendte fødevarer i den danske kost. Herudover rummer bogen anvisninger til anvendelsen af fødevaredata....

  1. Den ideelle leder

    DEFF Research Database (Denmark)

    Holmgreen, Lise-Lotte

    2013-01-01

    af jobannoncer for lederstillinger på de danske jobportaler Stepstone og Job Index indikerer, at den første type er den, der oftest bliver efterspurgt blandt danske virksomheder (Holmgreen, i proces). Med udgangspunkt i begrebet framing (Evans & Green 2006; Fillmore 1982; Kövecses 2006; Lakoff 1987...

  2. Den Akutte Patient

    DEFF Research Database (Denmark)

    Graumann, Ole; Laursen, Christian B.

    2016-01-01

    Kapitlet indledes med en generel introduktion til de mest almindelige former for PoC-billeddiagnostik, hvor klinikeren i en akutmodtageafdeling selv varetager den initiale tolkning. Der fokuseres på de billeddiagnostiske undersøgelser, der kan og skal ske i den akutte modtageafdeling, og begrebet...

  3. Dens in Dente

    Directory of Open Access Journals (Sweden)

    Anita Balan

    2006-01-01

    Full Text Available Dens in dente are developmental malformation resulting from invagination of the crown before it is calcified. This anomaly is most frequently found in the permanent maxillary lateral incisor. Three cases, one of radicular and two of coronal dens in dente are reported.

  4. Den Legende Organisation

    DEFF Research Database (Denmark)

    Thorsted, Ann Charlotte

    Bogen beskriver, hvordan to vidt forskellige organisationer - den store internationale virksomhed LEGO og den mindre nonprofit organisation SUS - har bragt legen i spil. Ann Charlotte Thorsted viser i bogen, hvordan leg kan understøtte innovation, læring, kommunikation, samarbejde og det gode arb...

  5. Den levende sangfugl

    DEFF Research Database (Denmark)

    Bjerre, Thomas Ærvold

    2009-01-01

    Kronik om Harper Lee's roman "Dræb ikke en sangfugl" (1960) og den store indflydelse bog og film har haft på amerikansk kultur. Udgivelsesdato: 30. juli......Kronik om Harper Lee's roman "Dræb ikke en sangfugl" (1960) og den store indflydelse bog og film har haft på amerikansk kultur. Udgivelsesdato: 30. juli...

  6. Den ideelle leder

    DEFF Research Database (Denmark)

    Holmgreen, Lise-Lotte

    2013-01-01

    af jobannoncer for lederstillinger på de danske jobportaler Stepstone og Job Index indikerer, at den første type er den, der oftest bliver efterspurgt blandt danske virksomheder (Holmgreen, i proces). Med udgangspunkt i begrebet framing (Evans & Green 2006; Fillmore 1982; Kövecses 2006; Lakoff 1987...

  7. Den historiske krimi

    DEFF Research Database (Denmark)

    Agger, Gunhild

    2014-01-01

    Rent kvantitativt har den historiske og samtidshistoriske krimi ekspanderet voldsomt siden 1980’erne – også i Norden. Det er sket i forskellige medier, men mest fremtrædende i romanform. En historisk krimi er helt grundlæggende et værk, der kombinerer to genrer – krimien og den historiske roman. ...

  8. Den lille levnedsmiddeltabel

    DEFF Research Database (Denmark)

    Saxholt, Erling; Fagt, Sisse; Matthiessen, Jeppe

    Den lille levnedsmiddeltabel er en oversigt over indholdet af næringsstoffer i næsten 600 af de mest anvendte fødevarer i den danske kost. Herudover rummer bogen anvisninger til anvendelsen af fødevaredata....

  9. Den moderate revolution

    DEFF Research Database (Denmark)

    Larsen, Bøje

    "normale" industrivirksomheder, men den er absolut set begrænset. Årsagerne til denne kun "moderate revolution" af organisationsformerne diskuteres: Er det fordi klassisk organisation og social nærkontakt er nødvendig i den nye økonomi, eller er det manglende fantasi og tryghedsbehov? Begge muligheder...

  10. Den positive psykologis metoder

    DEFF Research Database (Denmark)

    Andersen, Frans Ørsted; Mørck, Line Lerche; Nissen, Poul Erik

    En antologi der giver en introduktion til en række af de metoder der anvendes til forskning, assessment, test, udviklingsarbejde og intervention indenfor den positive psykologi.......En antologi der giver en introduktion til en række af de metoder der anvendes til forskning, assessment, test, udviklingsarbejde og intervention indenfor den positive psykologi....

  11. Free-ranging farm cats: home range size and predation on a livestock unit in Northwest Georgia.

    Science.gov (United States)

    Kitts-Morgan, Susanna E; Caires, Kyle C; Bohannon, Lisa A; Parsons, Elizabeth I; Hilburn, Katharine A

    2015-01-01

    This study's objective was to determine seasonal and diurnal vs. nocturnal home range size, as well as predation for free-ranging farm cats at a livestock unit in Northwest Georgia. Seven adult cats were tracked with attached GPS units for up to two weeks for one spring and two summer seasons from May 2010 through August 2011. Three and five cats were tracked for up to two weeks during the fall and winter seasons, respectively. Feline scat was collected during this entire period. Cats were fed a commercial cat food daily. There was no seasonal effect (P > 0.05) on overall (95% KDE and 90% KDE) or core home range size (50% KDE). Male cats tended (P = 0.08) to have larger diurnal and nocturnal core home ranges (1.09 ha) compared to female cats (0.64 ha). Reproductively intact cats (n = 2) had larger (P cats. Feline scat processing separated scat into prey parts, and of the 210 feline scats collected during the study, 75.24% contained hair. Of these 158 scat samples, 86 contained non-cat hair and 72 contained only cat hair. Other prey components included fragments of bone in 21.43% of scat and teeth in 12.86% of scat. Teeth were used to identify mammalian prey hunted by these cats, of which the Hispid cotton rat (Sigmodon hispidus) was the primary rodent. Other targeted mammals were Peromyscus sp., Sylvilagus sp. and Microtus sp. Invertebrates and birds were less important as prey, but all mammalian prey identified in this study consisted of native animals. While the free-ranging farm cats in this study did not adjust their home range seasonally, sex and reproductive status did increase diurnal and nocturnal home range size. Ultimately, larger home ranges of free-ranging cats could negatively impact native wildlife.

  12. Free-Ranging Farm Cats: Home Range Size and Predation on a Livestock Unit In Northwest Georgia

    Science.gov (United States)

    Kitts-Morgan, Susanna E.; Caires, Kyle C.; Bohannon, Lisa A.; Parsons, Elizabeth I.; Hilburn, Katharine A.

    2015-01-01

    This study’s objective was to determine seasonal and diurnal vs. nocturnal home range size, as well as predation for free-ranging farm cats at a livestock unit in Northwest Georgia. Seven adult cats were tracked with attached GPS units for up to two weeks for one spring and two summer seasons from May 2010 through August 2011. Three and five cats were tracked for up to two weeks during the fall and winter seasons, respectively. Feline scat was collected during this entire period. Cats were fed a commercial cat food daily. There was no seasonal effect (P > 0.05) on overall (95% KDE and 90% KDE) or core home range size (50% KDE). Male cats tended (P = 0.08) to have larger diurnal and nocturnal core home ranges (1.09 ha) compared to female cats (0.64 ha). Reproductively intact cats (n = 2) had larger (P cats. Feline scat processing separated scat into prey parts, and of the 210 feline scats collected during the study, 75.24% contained hair. Of these 158 scat samples, 86 contained non-cat hair and 72 contained only cat hair. Other prey components included fragments of bone in 21.43% of scat and teeth in 12.86% of scat. Teeth were used to identify mammalian prey hunted by these cats, of which the Hispid cotton rat (Sigmodon hispidus) was the primary rodent. Other targeted mammals were Peromyscus sp., Sylvilagus sp. and Microtus sp. Invertebrates and birds were less important as prey, but all mammalian prey identified in this study consisted of native animals. While the free-ranging farm cats in this study did not adjust their home range seasonally, sex and reproductive status did increase diurnal and nocturnal home range size. Ultimately, larger home ranges of free-ranging cats could negatively impact native wildlife. PMID:25894078

  13. Habitat area and climate stability determine geographical variation in plant species range sizes

    DEFF Research Database (Denmark)

    Morueta-Holme, Naia; Enquist, Brian J.; McGill, Brian J.

    2013-01-01

    Despite being a fundamental aspect of biodiversity, little is known about what controls species range sizes. This is especially the case for hyperdiverse organisms such as plants. We use the largest botanical data set assembled to date to quantify geographical variation in range size for ~85...

  14. Den kinesiske krimi

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    oversætter orientalisten Robert van Gulik den overleverede kinesiske fortælling De goong an til engelsk – som The Celebrated Cases of Judge Dee – og er dermed en central aktør i importen af den kinesiske krimi til vesten. Gulik stopper dog ikke her, men fortsætter sin fascination af karakteren Dommer Dee, og...... skriver derfor en række romaner, der foregår på det tidspunkt, som den biografiske Dee skal have levet. Gulik både oversætter, importerer og adapterer på den måde den kinesiske krimi. Dette paper sætter fokus på forskelle og ligheder på vestlig og kinesisk krimi – med særligt fokus på Dee goong...

  15. Unifying latitudinal gradients in range size and richness across marine and terrestrial systems.

    Science.gov (United States)

    Tomašových, Adam; Kennedy, Jonathan D; Betzner, Tristan J; Kuehnle, Nicole Bitler; Edie, Stewart; Kim, Sora; Supriya, K; White, Alexander E; Rahbek, Carsten; Huang, Shan; Price, Trevor D; Jablonski, David

    2016-05-11

    Many marine and terrestrial clades show similar latitudinal gradients in species richness, but opposite gradients in range size-on land, ranges are the smallest in the tropics, whereas in the sea, ranges are the largest in the tropics. Therefore, richness gradients in marine and terrestrial systems do not arise from a shared latitudinal arrangement of species range sizes. Comparing terrestrial birds and marine bivalves, we find that gradients in range size are concordant at the level of genera. Here, both groups show a nested pattern in which narrow-ranging genera are confined to the tropics and broad-ranging genera extend across much of the gradient. We find that (i) genus range size and its variation with latitude is closely associated with per-genus species richness and (ii) broad-ranging genera contain more species both within and outside of the tropics when compared with tropical- or temperate-only genera. Within-genus species diversification thus promotes genus expansion to novel latitudes. Despite underlying differences in the species range-size gradients, species-rich genera are more likely to produce a descendant that extends its range relative to the ancestor's range. These results unify species richness gradients with those of genera, implying that birds and bivalves share similar latitudinal dynamics in net species diversification.

  16. Habitat area and climate stability determine geographical variation in plant species range sizes.

    Science.gov (United States)

    Morueta-Holme, Naia; Enquist, Brian J; McGill, Brian J; Boyle, Brad; Jørgensen, Peter M; Ott, Jeffrey E; Peet, Robert K; Símová, Irena; Sloat, Lindsey L; Thiers, Barbara; Violle, Cyrille; Wiser, Susan K; Dolins, Steven; Donoghue, John C; Kraft, Nathan J B; Regetz, Jim; Schildhauer, Mark; Spencer, Nick; Svenning, Jens-Christian

    2013-12-01

    Despite being a fundamental aspect of biodiversity, little is known about what controls species range sizes. This is especially the case for hyperdiverse organisms such as plants. We use the largest botanical data set assembled to date to quantify geographical variation in range size for ~ 85 000 plant species across the New World. We assess prominent hypothesised range-size controls, finding that plant range sizes are codetermined by habitat area and long- and short-term climate stability. Strong short- and long-term climate instability in large parts of North America, including past glaciations, are associated with broad-ranged species. In contrast, small habitat areas and a stable climate characterise areas with high concentrations of small-ranged species in the Andes, Central America and the Brazilian Atlantic Rainforest region. The joint roles of area and climate stability strengthen concerns over the potential effects of future climate change and habitat loss on biodiversity.

  17. Habitat area and climate stability determine geographical variation in plant species range sizes

    DEFF Research Database (Denmark)

    Morueta-Holme, Naia; Enquist, Brian J.; McGill, Brian J.

    2013-01-01

    Despite being a fundamental aspect of biodiversity, little is known about what controls species range sizes. This is especially the case for hyperdiverse organisms such as plants. We use the largest botanical data set assembled to date to quantify geographical variation in range size for ~85,000 ...... concerns over the potential effects of future climate change and habitat loss on biodiversity.......,000 plant species across the New World. We assess prominent hypothesised range-size controls, finding that plant range sizes are codetermined by habitat area and long- and short-term climate stability. Strong short- and long-term climate instability in large parts of North America, including past...... glaciations, are associated with broad-ranged species. In contrast, small habitat areas and a stable climate characterise areas with high concentrations of small-ranged species in the Andes, Central America and the Brazilian Atlantic Rainforest region. The joint roles of area and climate stability strengthen...

  18. Correlates of research effort in carnivores: body size, range size and diet matter.

    Directory of Open Access Journals (Sweden)

    Zoe M Brooke

    Full Text Available Given the budgetary restrictions on scientific research and the increasing need to better inform conservation actions, it is important to identify the patterns and causes of biases in research effort. We combine bibliometric information from a literature review of almost 16,500 peer-reviewed publications on a well-known group of 286 species, the Order Carnivora, with global datasets on species' life history and ecological traits to explore patterns in research effort. Our study explores how species' characteristics influenced the degree to which they were studied (measured as the number of publications. We identified a wide variation in intensity of research effort at both Family and Species levels, with some of the least studied being those which may need protection in future. Our findings hint at the complex role of human perspectives in setting research agendas. We found that better-studied species tended to be large-bodied and have a large geographic range whilst omnivory had a negative relationship with research effort. IUCN threat status did not exhibit a strong relationship with research effort which suggests that the conservation needs of individual species are not major drivers of research interest. This work is the first to use a combination of bibliometric analysis and biological data to quantify and interpret gaps in research knowledge across an entire Order. Our results could be combined with other resources, such as Biodiversity Action Plans, to prioritise and co-ordinate future research effort, whilst our methods can be applied across many scientific disciplines to describe knowledge gaps.

  19. Human pressures predict species' geographic range size better than biological traits.

    Science.gov (United States)

    Di Marco, Moreno; Santini, Luca

    2015-06-01

    Geographic range size is the manifestation of complex interactions between intrinsic species traits and extrinsic environmental conditions. It is also a fundamental ecological attribute of species and a key extinction risk correlate. Past research has primarily focused on the role of biological and environmental predictors of range size, but macroecological patterns can also be distorted by human activities. Here, we analyse the role of extrinsic (biogeography, habitat state, climate, human pressure) and intrinsic (biology) variables in predicting range size of the world's terrestrial mammals. In particular, our aim is to compare the predictive ability of human pressure vs. species biology. We evaluated the ability of 19 intrinsic and extrinsic variables in predicting range size for 4867 terrestrial mammals. We repeated the analyses after excluding restricted-range species and performed separate analyses for species in different biogeographic realms and taxonomic groups. Our model had high predictive ability and showed that climatic variables and human pressures are the most influential predictors of range size. Interestingly, human pressures predict current geographic range size better than biological traits. These findings were confirmed when repeating the analyses on large-ranged species, individual biogeographic regions and individual taxonomic groups. Climatic and human impacts have determined the extinction of mammal species in the past and are the main factors shaping the present distribution of mammals. These factors also affect other vertebrate groups globally, and their influence on range size may be similar as well. Measuring climatic and human variables can allow to obtain approximate range size estimations for data-deficient and newly discovered species (e.g. hundreds of mammal species worldwide). Our results support the need for a more careful consideration of the role of climate change and human impact - as opposed to species biological

  20. A macrophysiological analysis of energetic constraints on geographic range size in mammals.

    Directory of Open Access Journals (Sweden)

    Salvatore J Agosta

    Full Text Available Physiological processes are essential for understanding the distribution and abundance of organisms, and recently, with widespread attention to climate change, physiology has been ushered back to the forefront of ecological thinking. We present a macrophysiological analysis of the energetics of geographic range size using combined data on body size, basal metabolic rate (BMR, phylogeny and range properties for 574 species of mammals. We propose three mechanisms by which interspecific variation in BMR should relate positively to geographic range size: (i Thermal Plasticity Hypothesis, (ii Activity Levels/Dispersal Hypothesis, and (iii Energy Constraint Hypothesis. Although each mechanism predicts a positive correlation between BMR and range size, they can be further distinguished based on the shape of the relationship they predict. We found evidence for the predicted positive relationship in two dimensions of energetics: (i the absolute, mass-dependent dimension (BMR and (ii the relative, mass-independent dimension (MIBMR. The shapes of both relationships were similar and most consistent with that expected from the Energy Constraint Hypothesis, which was proposed previously to explain the classic macroecological relationship between range size and body size in mammals and birds. The fact that this pattern holds in the MIBMR dimension indicates that species with supra-allometric metabolic rates require among the largest ranges, above and beyond the increasing energy demands that accrue as an allometric consequence of large body size. The relationship is most evident at high latitudes north of the Tropics, where large ranges and elevated MIBMR are most common. Our results suggest that species that are most vulnerable to extinction from range size reductions are both large-bodied and have elevated MIBMR, but also, that smaller species with elevated MIBMR are at heightened risk. We also provide insights into the global latitudinal trends in range

  1. A macrophysiological analysis of energetic constraints on geographic range size in mammals.

    Science.gov (United States)

    Agosta, Salvatore J; Bernardo, Joseph; Ceballos, Gerardo; Steele, Michael A

    2013-01-01

    Physiological processes are essential for understanding the distribution and abundance of organisms, and recently, with widespread attention to climate change, physiology has been ushered back to the forefront of ecological thinking. We present a macrophysiological analysis of the energetics of geographic range size using combined data on body size, basal metabolic rate (BMR), phylogeny and range properties for 574 species of mammals. We propose three mechanisms by which interspecific variation in BMR should relate positively to geographic range size: (i) Thermal Plasticity Hypothesis, (ii) Activity Levels/Dispersal Hypothesis, and (iii) Energy Constraint Hypothesis. Although each mechanism predicts a positive correlation between BMR and range size, they can be further distinguished based on the shape of the relationship they predict. We found evidence for the predicted positive relationship in two dimensions of energetics: (i) the absolute, mass-dependent dimension (BMR) and (ii) the relative, mass-independent dimension (MIBMR). The shapes of both relationships were similar and most consistent with that expected from the Energy Constraint Hypothesis, which was proposed previously to explain the classic macroecological relationship between range size and body size in mammals and birds. The fact that this pattern holds in the MIBMR dimension indicates that species with supra-allometric metabolic rates require among the largest ranges, above and beyond the increasing energy demands that accrue as an allometric consequence of large body size. The relationship is most evident at high latitudes north of the Tropics, where large ranges and elevated MIBMR are most common. Our results suggest that species that are most vulnerable to extinction from range size reductions are both large-bodied and have elevated MIBMR, but also, that smaller species with elevated MIBMR are at heightened risk. We also provide insights into the global latitudinal trends in range size and MIBMR

  2. A Macrophysiological Analysis of Energetic Constraints on Geographic Range Size in Mammals

    Science.gov (United States)

    Ceballos, Gerardo; Steele, Michael A.

    2013-01-01

    Physiological processes are essential for understanding the distribution and abundance of organisms, and recently, with widespread attention to climate change, physiology has been ushered back to the forefront of ecological thinking. We present a macrophysiological analysis of the energetics of geographic range size using combined data on body size, basal metabolic rate (BMR), phylogeny and range properties for 574 species of mammals. We propose three mechanisms by which interspecific variation in BMR should relate positively to geographic range size: (i) Thermal Plasticity Hypothesis, (ii) Activity Levels/Dispersal Hypothesis, and (iii) Energy Constraint Hypothesis. Although each mechanism predicts a positive correlation between BMR and range size, they can be further distinguished based on the shape of the relationship they predict. We found evidence for the predicted positive relationship in two dimensions of energetics: (i) the absolute, mass-dependent dimension (BMR) and (ii) the relative, mass-independent dimension (MIBMR). The shapes of both relationships were similar and most consistent with that expected from the Energy Constraint Hypothesis, which was proposed previously to explain the classic macroecological relationship between range size and body size in mammals and birds. The fact that this pattern holds in the MIBMR dimension indicates that species with supra-allometric metabolic rates require among the largest ranges, above and beyond the increasing energy demands that accrue as an allometric consequence of large body size. The relationship is most evident at high latitudes north of the Tropics, where large ranges and elevated MIBMR are most common. Our results suggest that species that are most vulnerable to extinction from range size reductions are both large-bodied and have elevated MIBMR, but also, that smaller species with elevated MIBMR are at heightened risk. We also provide insights into the global latitudinal trends in range size and MIBMR

  3. Den fleksible leders identitetsarbejde

    DEFF Research Database (Denmark)

    Madsen, Charlotte Øland

    2012-01-01

    Den lingvistiske drejning i organisationsforskningen giver nye perspektiver også på forskning indenfor organisering og ledelse (Boje 1995, Alvesson et. al. 2000b). Udviklingen af sprogforskningen (Wittgenstein 1953), og diskursteorien (Derrida 1976, Foucault 1979), den narrative teori (Boje 1995......, Boje et. al. 2004) samt en ny og spændende form for socialpsykologi (Potter et. al., 1987, Gergen 2011) beskrives i denne konferenceartikel som en alternativ måde at se organiseringsprocesser og ledelse på. Temaet i konferenceartiklen er hvordan den socialkonstruktionistiske tilgang kan bidrage til...

  4. Den egyptiske balancegang

    OpenAIRE

    Danielsen, Claus; Eilersen, Thore West; Rasmussen, Peter Henning; Kennedy, Ian Christian; Hansen, Mikala Sejer

    2008-01-01

    Opgaven er en undersøgelse af de omstændigheder Egypten stod i, da den palæstinensiske organisation Hamas valgte at sprænge grænsehegnet mellem Egypten og Gaza-striben den 23. januar 2008. Derfor er der i opgaven en tese om, at Egypten forsøger at bevare en magtmæssig status quo i regionen. Den historiske empiri er derfor med til at dokumentere Egyptens skiftende udenrigspolitik. Teoretisk er opgaven baseret på realismen og i særdeleshed Kenneth N. Waltz begreb om balance of power og status q...

  5. Den Gode Historie

    DEFF Research Database (Denmark)

    Mogensen, T.E.

    den nysgerrige læser af trilogien. Den kan beses og bestilles på: www.universitypress.dk/DK/detail.php?token=73278292116&R=8778387078&N=nej ELLER KØB DEN DIREKTE HOS MIG: SLAGTILBUD 100 kr. (inkl. porto og forsendelse)!                            Henvendelse pr. e-mail til tine.engel@gmail.com...

  6. Denver District Laboratory (DEN)

    Data.gov (United States)

    Federal Laboratory Consortium — Program CapabilitiesDEN-DO Laboratory is a multi-functional laboratory capable of analyzing most chemical analytes and pathogenic/non-pathogenic microorganisms found...

  7. Mean latitudinal range sizes of bird assemblages in six Neotropical forest chronosequences

    DEFF Research Database (Denmark)

    Dunn, Robert R.; Romdal, Tom Skovlund

    2005-01-01

    Aim The geographical range size frequency distributions of animal and plant assemblages are among the most important factors affecting large-scale patterns of diversity. Nonetheless, the relationship between habitat type and the range size distributions of species forming assemblages remains poorly...... towards more small ranged species occurs. Even relatively old secondary forests have bird species with larger average ranges than mature forests. As a consequence, conservation of secondary forests alone will miss many of the species most at risk of extinction and most unlikely to be conserved in other...

  8. Den antikke katapults udvikling

    DEFF Research Database (Denmark)

    Paasch, Kasper

    2011-01-01

    Hvordan bygger man en katapult? Dette spørgsmål belyses ved at se på den græske og romerske katapults udviklingshistorie samt på den forskningshistoriske tilgang til emnet, hovedsageligt set ud fra et ingeniørmæssig/matematisk synspunkt. Katapulten menes opfundet år 399 f.Kr. og blot ca. 120-150 ...

  9. Den Lille Leder

    DEFF Research Database (Denmark)

    Juhl, Martin; Ussing, Lene Faber

    En lille lommebog, der i fem trin hjælper dig som projektleder til succesfulde projekter i entreprenørbranchen. "Den lille leder" indeholder udvalgte ledelsesteorier, der er relevante for projektledere i byggebranchen.......En lille lommebog, der i fem trin hjælper dig som projektleder til succesfulde projekter i entreprenørbranchen. "Den lille leder" indeholder udvalgte ledelsesteorier, der er relevante for projektledere i byggebranchen....

  10. Den Danske Begrebsordbog

    DEFF Research Database (Denmark)

    Nimb, Sanni; Trap-Jensen, Lars; Lorentzen, Henrik;

    Den Danske Begrebsordbog er en ordbog, der er ordnet systematisk efter begreb, dvs. at ordene er grupperet efter deres betydning og ikke alfabetisk.Ordbogen indeholder næsten 200.000 ord og udtryk, og den dækker alt mellem himmel og jord såsom tid og rum, følelser og tænkning, samfund og...

  11. Den signede dag

    DEFF Research Database (Denmark)

    Balslev-Clausen, Peter

    2010-01-01

    Artiklen gennemgår de tre middelalderlige versioner af den fællesnordiske dagvise fra 14. århundrede og gør rede for salmens tekst- og receptionshistorie i Dansk tradition.......Artiklen gennemgår de tre middelalderlige versioner af den fællesnordiske dagvise fra 14. århundrede og gør rede for salmens tekst- og receptionshistorie i Dansk tradition....

  12. Den store fred

    DEFF Research Database (Denmark)

    Necef, Mehmet Ümit

    2013-01-01

    Der har de seneste måneder foregået seriøse fredsforhandlinger mellem den tyrkiske stat og PKK (Det kurdiske Arbejderparti) for at løse den 30-årige blo-dige konflikt. Denne artikel diskuterer, hvorfor det netop er en moderat isla-misk regering, der gør en stor indsats for at stoppe krigen med en...

  13. Den mobile protese

    DEFF Research Database (Denmark)

    Winther, Ida Wentzel

    2008-01-01

    Mobiltelefonen er med til at ændre vores sanse-matrix. Når en genstand får protesekarakter og kommer i front, skubbes andre sanser bagud. Håndprotesen rækker længere frem og har egenskaber som langt overgår en almindelig hånd. Den ser ud og lyder af noget, den kan skabe kontakt med det virtuelle ...

  14. EF & den sociale dimension

    DEFF Research Database (Denmark)

    Due, Jesper Jørgen; Madsen, Jørgen Steen; Jensen, Carsten Strøby

    En analyse af EU's institutioner og udviklingen af den sociale dimension i forbindelse med etbaleringen af det indre marked med særlig henblik på effekterne på det danske aftalesystem.......En analyse af EU's institutioner og udviklingen af den sociale dimension i forbindelse med etbaleringen af det indre marked med særlig henblik på effekterne på det danske aftalesystem....

  15. Summer Home Range Size and Habitat Use by River Otters in Ohio

    Directory of Open Access Journals (Sweden)

    David A. Helon

    2004-01-01

    Full Text Available Reintroduced river otters (Lontra canadensis are an important component of Ohio’s biological diversity, and are a key indicator of wetland and watershed health and quality. However, few data are available on their home range sizes and habitat use. We monitored river otters using radio-telemetry in the Killbuck Watershed, in northeastern Ohio, during 2002 and 2003 to determine home range and habitat use. Overall, mean home range size was 802.4 ha (range = 84.5–3,376.3, SE = 448.2 for female river otters and 1,101.7 ha (range = 713.8–1,502.6, SE = 102.2 for male river otters. Home range size of female and male river otters did not differ in 2002 (P = 0.763, but males had larger home range size than females during 2003 (P = 0.001. Based on compositional analysis, habitat use differed in proportion to availability of the 5 habitat types available in the study area (marsh, wet meadow, riparian/floodplain, open water, and flooded upland (P < 0.0001. Overall, river otters used marsh habitat with a diverse association of floating aquatics and emergent vegetation in greater proportion than was available. Knowledge and understanding of river otter habitat use and home range size in Ohio will help managers identify habitats suitable for river otters in the Midwestern United States.

  16. Adult and larval traits as determinants of geographic range size among tropical reef fishes.

    Science.gov (United States)

    Luiz, Osmar J; Allen, Andrew P; Robertson, D Ross; Floeter, Sergio R; Kulbicki, Michel; Vigliola, Laurent; Becheler, Ronan; Madin, Joshua S

    2013-10-01

    Most marine organisms disperse via ocean currents as larvae, so it is often assumed that larval-stage duration is the primary determinant of geographic range size. However, empirical tests of this relationship have yielded mixed results, and alternative hypotheses have rarely been considered. Here we assess the relative influence of adult and larval-traits on geographic range size using a global dataset encompassing 590 species of tropical reef fishes in 47 families, the largest compilation of such data to date for any marine group. We analyze this database using linear mixed-effect models to control for phylogeny and geographical limits on range size. Our analysis indicates that three adult traits likely to affect the capacity of new colonizers to survive and establish reproductive populations (body size, schooling behavior, and nocturnal activity) are equal or better predictors of geographic range size than pelagic larval duration. We conclude that adult life-history traits that affect the postdispersal persistence of new populations are primary determinants of successful range extension and, consequently, of geographic range size among tropical reef fishes.

  17. Testing adaptive regime shifts for range size evolution of endemic birds of China

    Directory of Open Access Journals (Sweden)

    Youhua Chen

    2016-03-01

    Full Text Available In this brief report, adaptive regime shifts for the range size evolution of the endemic birds of China were identified. Four models with different biological meanings were tested and compared through maximum likelihood models, including the Brownian motion model, one global optimal range size model for all lineages in the phylogeny, two optimal regime model of range sizes for lineages with large and small range sizes (OU2, and three optimal regime model in which an additional regime is added to the ancestral lineages. The results of model evaluation and comparison using the maximum likelihood technique show that over 48 endemic taxa, two optimal regimes (the OU2 model were observed for bird lineages with large and small range sizes in the country. The possible reasons for such an observation were outlined accordingly, including the different evolutionary times, which were subjected to different historical and geological conditions, heterogeneous environmental conditions, and complex climatic fluctuations. Overall, the range size evolution of the endemic taxa was subjected to multiple selective stresses. For future implications, more studies are desired to provide a holistic view of the evolution and divergence of endemic taxa.

  18. Healthies er den nye selfie

    DEFF Research Database (Denmark)

    Fausing, Bent

    2015-01-01

    Om den sunde selfie, healthien. Om årsagne til dens opståen, succes og visuelt kulturelle og æstetiske betydning på de sociale medier.......Om den sunde selfie, healthien. Om årsagne til dens opståen, succes og visuelt kulturelle og æstetiske betydning på de sociale medier....

  19. Den digitale (r)evolution

    DEFF Research Database (Denmark)

    Pedersen, Rasmus Rex

    2016-01-01

    Dette kapitel undersøger hvordan den såkaldte ’digitale revolution’ af musikindustrierne har påvirket institutionelle og organisatoriske vilkår i den danske musikbranche. Gennem analyse af omsætningstal fra forskellige sektorer i den danske musikbranche udfordres den dominerende opfattelse af en...

  20. Prevalence of intraspecific relationships between range size and abundance in Danish birds

    DEFF Research Database (Denmark)

    Borregaard, Michael Krabbe; Rahbek, Carsten

    2006-01-01

    In this study, we investigate patterns in the prevalence of dynamic range-abundance relationships of the Danish avifauna, using breeding bird atlases from 1971 to 1974 and from 1993 to 1996. We focus on differences between common and rare species by dividing the assemblage into range-size quartiles...

  1. Space use of wintering waterbirds in India: Influence of trophic ecology on home-range size

    Science.gov (United States)

    Namgail, Tsewang; Takekawa, John Y.; Balachandran, Sivananinthaperumal; Sathiyaselvam, Ponnusamy; Mundkur, Taej; Newman, Scott H.

    2014-01-01

    Relationship between species' home range and their other biological traits remains poorly understood, especially in migratory birds due to the difficulty associated with tracking them. Advances in satellite telemetry and remote sensing techniques have proved instrumental in overcoming such challenges. We studied the space use of migratory ducks through satellite telemetry with an objective of understanding the influence of body mass and feeding habits on their home-range sizes. We marked 26 individuals, representing five species of migratory ducks, with satellite transmitters during two consecutive winters in three Indian states. We used kernel methods to estimate home ranges and core use areas of these waterfowl, and assessed the influence of body mass and feeding habits on home-range size. Feeding habits influenced the home-range size of the migratory ducks. Carnivorous ducks had the largest home ranges, herbivorous ducks the smallest, while omnivorous species had intermediate home-ranges. Body mass did not explain variation in home-range size. To our knowledge, this is the first study of its kind on migratory ducks, and it has important implications for their conservation and management.

  2. Testing abundance-range size relationships in European carabid beetles (Coleoptera, Carabidae)

    NARCIS (Netherlands)

    Kotze, J.; Niemelä, J.; O'Hara, R.B.; Turin, H.

    2003-01-01

    Four of the eight hypotheses proposed in the literature for explaining the relationship between abundance and range size (the sampling artifact, phylogenetic non-independence, range position and resource breadth hypotheses) were tested by using atlas data for carabid beetles (Coleoptera, Carabidae)

  3. Testing abundance-range size relationships in European carabid beetles (Coleoptera, Carabidae)

    NARCIS (Netherlands)

    Kotze, J.; Niemelä, J.; O'Hara, R.B.; Turin, H.

    2003-01-01

    Four of the eight hypotheses proposed in the literature for explaining the relationship between abundance and range size (the sampling artifact, phylogenetic non-independence, range position and resource breadth hypotheses) were tested by using atlas data for carabid beetles (Coleoptera, Carabidae)

  4. Negative range size-abundance relationships in Indo-Pacific bird communities

    DEFF Research Database (Denmark)

    Hart Reeve, Andrew; Borregaard, Michael Krabbe; Fjeldså, Jon

    2016-01-01

    -Pacific, namely Flores in the Lesser Sundas, Seram in the Moluccas, and the New Caledonian islands of Grande Terre and Lifou. Local abundance data was gathered through extensive and methodologically consistent surveying, and regressed against global range size using linear mixed effect models. The relationship......The positive relationship between range size and abundance is one of the best-documented patterns in macroecology, but a growing number of studies from isolated tropical areas have reported negative or neutral relationships. It has been hypothesized that the combination of geographic isolation...... between range size and abundance was significantly negative across all combined mature and degraded forest communities. As negative relationships were found in degraded forest with little environmental stability, we conclude that the abundance of small-ranged species on the study islands cannot...

  5. Den digitale patient

    DEFF Research Database (Denmark)

    Dahl, Mads Ronald; birkler, jacob

    Den digitale patient tager afsæt i en ny verden: Patienten er blevet digitaliseret! Men hvem og hvad er den digitale patient, og hvornår og hvordan bliver den enkelte borger til en digital patient? Bogen indkredser patientens nye digitale identitet, som kan skabe grobund for en fælles forståelse og...... tværfagligt samarbejde mellem forskellige faggrupper. Bogens målgruppe er alle, som arbejder professionelt med sundhed og sundhedsvæsenet i Danmark. Det gælder på grunduddannelsesniveau, i forhold til efter- og videreuddannelse samt i klinisk praksis og blandt praktikere. Den digitale patient er skrevet ud...... fra et patientperspektiv, og ideen er at synliggørelse de mange udfordringer og konsekvenser, sundhedsinformatikken er svanger med. Bogen beskriver ikke blot den digitale patients fremtid, men fokuserer især på en række forhold og forbehold, der bør medtænkes, når nye elektroniske kommunikationsveje...

  6. Range and Size Estimation Based on a Coordinate Transformation Model for Driving Assistance Systems

    Science.gov (United States)

    Wu, Bing-Fei; Lin, Chuan-Tsai; Chen, Yen-Lin

    This paper presents new approaches for the estimation of range between the preceding vehicle and the experimental vehicle, estimation of vehicle size and its projective size, and dynamic camera calibration. First, our proposed approaches adopt a camera model to transform coordinates from the ground plane onto the image plane to estimate the relative position between the detected vehicle and the camera. Then, to estimate the actual and projective size of the preceding vehicle, we propose a new estimation method. This method can estimate the range from a preceding vehicle to the camera based on contact points between its tires and the ground and then estimate the actual size of the vehicle according to the positions of its vertexes in the image. Because the projective size of a vehicle varies with respect to its distance to the camera, we also present a simple and rapid method of estimating a vehicle's projective height, which allows a reduction in computational time for size estimation in real-time systems. Errors caused by the application of different camera parameters are also estimated and analyzed in this study. The estimation results are used to determine suitable parameters during camera installation to suppress estimation errors. Finally, to guarantee robustness of the detection system, a new efficient approach to dynamic calibration is presented to obtain accurate camera parameters, even when they are changed by camera vibration owing to on-road driving. Experimental results demonstrate that our approaches can provide accurate and robust estimation results of range and size of target vehicles.

  7. Estimating home-range size: when to include a third dimension?

    Science.gov (United States)

    Monterroso, Pedro; Sillero, Neftalí; Rosalino, Luís Miguel; Loureiro, Filipa; Alves, Paulo Célio

    2013-07-01

    Most studies dealing with home ranges consider the study areas as if they were totally flat, working only in two dimensions, when in reality they are irregular surfaces displayed in three dimensions. By disregarding the third dimension (i.e., topography), the size of home ranges underestimates the surface actually occupied by the animal, potentially leading to misinterpretations of the animals' ecological needs. We explored the influence of considering the third dimension in the estimation of home-range size by modeling the variation between the planimetric and topographic estimates at several spatial scales. Our results revealed that planimetric approaches underestimate home-range size estimations, which range from nearly zero up to 22%. The difference between planimetric and topographic estimates of home-ranges sizes produced highly robust models using the average slope as the sole independent factor. Moreover, our models suggest that planimetric estimates in areas with an average slope of 16.3° (±0.4) or more will incur in errors ≥5%. Alternatively, the altitudinal range can be used as an indicator of the need to include topography in home-range estimates. Our results confirmed that home-range estimates could be significantly biased when topography is disregarded. We suggest that study areas where home-range studies will be performed should firstly be scoped for its altitudinal range, which can serve as an indicator for the need for posterior use of average slope values to model the surface area used and/or available for the studied animals.

  8. Mountain gorilla ranging patterns: influence of group size and group dynamics.

    Science.gov (United States)

    Caillaud, Damien; Ndagijimana, Felix; Giarrusso, Anthony J; Vecellio, Veronica; Stoinski, Tara S

    2014-08-01

    Since the 1980s, the Virunga mountain gorilla population has almost doubled, now reaching 480 individuals living in a 430-km(2) protected area. Analysis of the gorillas' ranging patterns can provide critical information on the extent and possible effects of competition for food and space. We analyzed 12 years of daily ranging data and inter-group encounter data collected on 11 gorilla groups monitored by the Karisoke Research Center in Rwanda. During that period, the study population increased in size by almost 50% and the number of groups tripled. Groups had small yearly home ranges compared to other known gorilla populations, with an average 90% kernel density estimate of 8.07 km2 and large between-group variations (3.17-23.59 km2). Most groups had consistent home range location over the course of the study but for some, we observed gradual range shifts of up to 4 km. Neighboring groups displayed high home range overlap, which increased dramatically after the formation of new groups. On average, each group used only 28.6% of its 90% kernel home range exclusively, and in some areas up to six different groups had overlapping home ranges with little or no exclusive areas. We found a significant intra-group positive relationship between the number of weaned individuals in a group and the home range size, but the fitted models only explained 17.5% and 13.7% of the variance in 50% and 90% kernel home range size estimates, respectively. This suggests that despite the increase in size, the study population is not yet experiencing marked effects of feeding competition. However, the increase in home range overlap resulting from the formation of new groups led to a sixfold increase in the frequency of inter-group encounters, which exposes the population to elevated risks of fight-related injuries and infanticide.

  9. Fluorescent dye labeled DNA size standards for molecular mass detection in visible/infrared range

    Directory of Open Access Journals (Sweden)

    Sreelakshmi Yellamaraju

    2011-01-01

    Full Text Available Abstract Background Targeting Induced Local Lesions in Genomes (TILLING is a high throughput reverse genetics tool which detects mismatches (single point mutations or small indels in large number of individuals of mutagenized populations. Currently, TILLING is intensively used for genomics assisted molecular breeding of several crop plants for desired traits. Most commonly used platform for mutation detection is Li-COR DNA Analyzer, where PCR amplified products treated with single strand mismatch specific nuclease are resolved on denaturing gels. The molecular size of any cut product can be easily estimated by comparing with IR dye labeled markers of known sizes. Similar fluorescent dye labeled size markers are also used for several genotyping experiments. Currently, commercially available size standards are expensive and are restricted up to only 700 bp which renders estimation of products of sizes greater than 700 bases inaccurate. Findings A simple protocol was developed for labeling 5' end of multiple DNA size markers with fluorescent dyes. This method involves cloning a pool of different size markers of DNA in a plasmid vector. PCR amplification of plasmid using IR dye labeled universal primers generates 5' fluorescent labeled products of various sizes. The size of products constituting the ladder can be customized as per the need. The generated size markers can be used without any further purification and were found to be stable up to one year at -20°C. Conclusions A simple method was developed for generating fluorescent dye labeled size standards. This method can be customized to generate different size standards as per experimental needs. The protocol described can also be adapted for developing labeled size standards for detection on platforms other than Li-COR i.e. other than infra red range of the spectrum.

  10. Den formbare seksualitet

    DEFF Research Database (Denmark)

    Lützen, Karin Cohr

    2016-01-01

    Den amerikanske sociolog John Gagnon så seksualiteten som noget, vi lærer af vores omgivelser, ligesom vi lærer at spille tennis eller at spise snegle. Karin Lützen mindes en ven og et forbillede.......Den amerikanske sociolog John Gagnon så seksualiteten som noget, vi lærer af vores omgivelser, ligesom vi lærer at spille tennis eller at spise snegle. Karin Lützen mindes en ven og et forbillede....

  11. The size and range effect: lifecycle greenhouse gas emissions of electric vehicles

    Science.gov (United States)

    Ager-Wick Ellingsen, Linda; Singh, Bhawna; Hammer Strømman, Anders

    2016-05-01

    The primary goal of this study is to investigate the effect of increasing battery size and driving range to the environmental impact of electric vehicles (EVs). To this end, we compile cradle-to-grave inventories for EVs in four size segments to determine their climate change potential. A second objective is to compare the lifecycle emissions of EVs to those of conventional vehicles. For this purpose, we collect lifecycle emissions for conventional vehicles reported by automobile manufacturers. The lifecycle greenhouse gas emissions are calculated per vehicle and over a total driving range of 180 000 km using the average European electricity mix. Process-based attributional LCA and the ReCiPe characterisation method are used to estimate the climate change potential from the hierarchical perspective. The differently sized EVs are compared to one another to find the effect of increasing the size and range of EVs. We also point out the sources of differences in lifecycle emissions between conventional- and electric vehicles. Furthermore, a sensitivity analysis assesses the change in lifecycle emissions when electricity with various energy sources power the EVs. The sensitivity analysis also examines how the use phase electricity sources influences the size and range effect.

  12. Optimizing components size of an extended range electric vehicle according to the use specifications

    OpenAIRE

    DEROLLEPOT, Romain; Weiss, Christine; KOLLI, Zehir; Franke, Thomas; Trigui, Rochdi; Chlond, Bastian; Armoogum, Jimmy; Stark, Juliane; Klementschitz, Roman; Baumann, Michael; PELISSIER, Serge

    2014-01-01

    This paper presents a methodology to optimally design the drivetrain of an Extended Range Electric Vehicle (EREV) according to the use specifications from European mobility surveys. At first the analysis of car uses is carried out, and a process aiming to classify the car use profiles into different clusters is proposed. Clusters that could fit typical EREV use are selected and applied in a sizing methodology to design the battery and the Range Extender (RE). Using a validated simulation soft...

  13. Den materielle drejning

    DEFF Research Database (Denmark)

    Skiveren, Tobias; Gregersen, Martin

    2015-01-01

    Ved at trække på en række forskellige tænkere som Jane Bennett, Arne Næss, Donna Haraway og Karan Barad relaterer artiklen den såkaldte materielle drejning til tre filosofisk-teoretiske nyorienteringer: økokritik, det posthumane og kropsmaterialisme. Tesen er, at interaktionenen mellem disse...

  14. Den materielle drejning

    DEFF Research Database (Denmark)

    Skiveren, Tobias; Gregersen, Martin

    2015-01-01

    Ved at trække på en række forskellige tænkere som Jane Bennett, Arne Næss, Donna Haraway og Karan Barad relaterer artiklen den såkaldte materielle drejning til tre filosofisk-teoretiske nyorienteringer: økokritik, det posthumane og kropsmaterialisme. Tesen er, at interaktionenen mellem disse...

  15. Den unge Burkes Satire

    DEFF Research Database (Denmark)

    Ørndorf, Steen

    Edmund Burke (1730-1797) er i nyere tid blevet politisk ikon, kendt som konservatismens fader. Berømmelsen skyldes hovedværket fra 1790, Reflections on the Revolution in France, som er et angreb på den franske revolution. Ungdomsarbejdet A Vindication of Natural Society er fra 1756 og har status...... både som konservativ forløber for Burkes hovedværk, og som radikalt modstykke hertil. Burkes fremragende sprogfornemmelse udfoldes her i et rent festfyrværkeri af besnærende argumenter. Den forførende retorik bedøver læserens fornuft. Denne virkning gør sig stadig gældende. Læst med fornuft, er det et......: "Forfatteren har et imponerende kendskab til Burkelitteraturen og til datidens engelske samfundsforhold. Behandlingen af Burke er kompetent og dybdegående. Stærkest er Ørndorfs diskussion af Burkes A Vindication of Natural Society og den receptionshistorie, der knytter sig til værket. Jeg er af den opfattelse...

  16. Den Akutte Patient

    DEFF Research Database (Denmark)

    Laursen, Christian B.; Graumann, Ole

    2016-01-01

    UL-vejledte teknikker til anlæggelse af dræn, katetre og karadgange samt til udtømning af væskefyldte hulrum præsenteres som point of care-procedurer, der på sigt bør indgå i det rutinemæssige arbejde i den akutte modtagelse....

  17. Den menneskelige eksistens

    DEFF Research Database (Denmark)

    tilværelse. Dermed tilbyder den et bedre grundlag for at forstå fremtrædende kultursociologiske og socialpsykologiske problemer som identitetsusikkerhed, angst og raseri såvel som frigørende muligheder for engagement og kreativitet. Foruden originale tekster af Merleau-Ponty, Ricœur og Waldenfels rummer...

  18. Den amerikanske udfordring

    DEFF Research Database (Denmark)

    Böss, Michael

    1994-01-01

    Artiklen beskriver den bulgarsk-franske tænker Tzvetan Todorovs udvikling fra litteraturteoretiker til bredt humanistisk engageret tænker. I artiklen argumenteres der for, at Todorovs bekendelse til oplysningshumanismen skal forstås på baggrund af hans personlige erfaringer fra en opvækst i det...

  19. Den patriarkalske Abraham

    DEFF Research Database (Denmark)

    Jensen, Hans Jørgen Lundager

    2015-01-01

    økonomi og slægtskabsrelationer. I Mary Douglas' Grid/Group-skema vil Abraham stå i samme grad fjernt fra præsteligt-hierarkiske og deuteronomistisk-enklavistiske idealer, De pietistiske og etnocentriske temaer som den bibelske tekstoverleveringsproces har tilføjet Abraham-figuren, har ikke tildækket en...

  20. Den kaotiske organisation

    DEFF Research Database (Denmark)

    Helms, Niels Henrik

    2006-01-01

    Præsentation af den britiske organisationsteoretiker Ralph Stacey: Stacey mener samlet, at organisationer ikke skal ses som systemer, der opstår, når individer interagerer med hinanden. Det er selve interaktionen, der er organisationen. Staceys kernebegreb er temporære processer. Når vi interager...

  1. Den danske regionskonstruktion

    DEFF Research Database (Denmark)

    Klausen, Kurt Klaudi

    Region Midtjylland er i centrum for analysen men den omfatter også regionsdannelsen i almindelighed. Der anlægges i analysen på samme tid et politologisk, organisationsteoretisk og økonomisk resonnement. Regionsdannelsen finder sted på baggrund af de setup Strukturreformen har sat, men udfoldes p...

  2. Den personlige dimension

    DEFF Research Database (Denmark)

    Olsen, Jan Brødslev

    2009-01-01

    Personlig udvikling og kompetence er vigtige dimensioner i sygeplejerskeuddannelsen. Dette stiller krav til læringsmæssige metoder, som er specielt egenede til denne særlige undervisningsopgave. På baggrund af en række psykologiske og filosofiske inspirationskilder foreslåes den såkaldste...

  3. Den personlige dimension

    DEFF Research Database (Denmark)

    Olsen, Jan Brødslev

    2009-01-01

    Personlig udvikling og kompetence er vigtige dimensioner i sygeplejerskeuddannelsen. Dette stiller krav til læringsmæssige metoder, som er specielt egenede til denne særlige undervisningsopgave. På baggrund af en række psykologiske og filosofiske inspirationskilder foreslåes den såkaldste...

  4. Den sundhedsvidenskabelige opgave

    DEFF Research Database (Denmark)

    Lindahl, Marianne Pia; Juhl, Carsten Bogh

    troværdigheden af sine resultater. Bogen er opdateret, så den refererer til Microsoft Office 2013, og giver instruktioner og tips til: • Hvordan man bruger Word til hjælp med indholdsfortegnelse, overskrifter og korrektur • Hvordan man bruger Word til hjælp med diagrammer og tabeller• Hvordan man bruger Excel...

  5. Den globale provins

    DEFF Research Database (Denmark)

    Gebauer, Mirjam

    2008-01-01

    »Den globale provins« gennemgår - med udgangspunkt i Ottmar Ettes begreb om at skrive mellem verdener - centrale værker fra denne migrationslitteratur. Ilija Trojanow kan med sin bulgarsk-sydafrikansk-østrigske baggrund beskrive en global verden mangfoldigt og komplekst, mens forfattere som Selim...

  6. Den relationelle psykiatri

    DEFF Research Database (Denmark)

    Kjølbye, Morten; Jacobsen, Claus Haugaard

    2009-01-01

    Dette kapitel bygger videre på kapitlet om det teoretiske grundlag for den relationelle psykiatri. I perspektiv af en mentaliseringsbaseret forståelse præsenteres en række psykopatologiske faktorer samt en model til forståelse af psykopatologisk udvikling. Ved inddragelse af kasuistisk materiale ...

  7. Evolutionary patterns of range size, abundance and species richness in Amazonian angiosperm trees

    Science.gov (United States)

    Chave, Jérôme

    2016-01-01

    Amazonian tree species vary enormously in their total abundance and range size, while Amazonian tree genera vary greatly in species richness. The drivers of this variation are not well understood. Here, we construct a phylogenetic hypothesis that represents half of Amazonian tree genera in order to contribute to explaining the variation. We find several clear, broad-scale patterns. Firstly, there is significant phylogenetic signal for all three characteristics; closely related genera tend to have similar numbers of species and similar mean range size and abundance. Additionally, the species richness of genera shows a significant, negative relationship with the mean range size and abundance of their constituent species. Our results suggest that phylogenetically correlated intrinsic factors, namely traits of the genera themselves, shape among lineage variation in range size, abundance and species richness. We postulate that tree stature may be one particularly relevant trait. However, other traits may also be relevant, and our study reinforces the need for ambitious compilations of trait data for Amazonian trees. In the meantime, our study shows how large-scale phylogenies can help to elucidate, and contribute to explaining, macroecological and macroevolutionary patterns in hyperdiverse, yet poorly understood regions like the Amazon Basin. PMID:27651991

  8. Variation in Bachman's Sparrow home-range size at the Savannah River Site, South Carolina

    Science.gov (United States)

    Stober, J.M.; Krementz, D.G.

    2006-01-01

    Using radiotelemetry, we studied variation in home-range size of the Bachman's Sparrow (Aimophila aestivalis) at the Savannah River Site (SRS), South Carolina, during the 1995 breeding season. At SRS, sparrows occurred primarily in two habitats: mature pine habitats managed for Red-cockaded Woodpecker (Picoides borealis) and pine plantations 1 to 6 years of age. The mean 95% minimum convex polygon home-range size for males and females combined (n = 14) was 2.95 ha + 0.57 SE, across all habitats. Mean homerange size for males in mature pine stands (4.79 ha + 0.27, n = 4) was significantly larger than that in 4-year-old (3.00 ha + 0.31, n = 3) and 2-year-old stands (1.46 ha + 0.31, it = 3). Home-range sizes of paired males and females (it = 4 pairs) were similar within habitat type; mean distances between consecutive locations differed by habitat type and sex. We hypothesize that a gradient in food resources drives home-range dynamics.

  9. Bryophyte diversity and range size distribution along two altitudinal gradients: Continent vs. island

    Science.gov (United States)

    Ah-Peng, Claudine; Wilding, Nicholas; Kluge, Juergen; Descamps-Julien, Blandine; Bardat, Jacques; Chuah-Petiot, Min; Strasberg, Dominique; Hedderson, Terry A. J.

    2012-07-01

    We compare patterns of bryophyte diversity and variation in species altitudinal ranges between a continental and an island altitudinal gradient. We use our ecological data set along the highest summit (Piton des Neiges, 3069 m) of Réunion Island (Mascarene archipelago) and compare it to available published data of another high volcanic massif in Colombia (Nevado del Ruiz, 5321 m). The distribution of narrow-ranged and large-ranged species was investigated. We tested the effect of geometric constraints on species distribution along the two gradients by comparing empirical to predicted data using the Mid-Domain Null Programme (McCain, 2004). Species richness was comparable between the island and continental gradient for epiphytic bryophytes, 265 and 295 species respectively. The comparison between the two tropical high mountains demonstrates important differences in the distribution of range sizes with altitude and a dominance of species with small range sizes on the Réunion gradient. For the island gradient, mean altitudinal range increases with altitude whilst concurrently species richness decreases revealing a Rapoport effect in altitudinal distribution of bryophyte communities. Geometric constraints did not explain much of the species richness pattern for the island. Conversely, for the continental gradient, dominated by large-ranged species, geometric constraints could not be ruled out as a primary structuring feature for the species richness pattern. This study also highlights that the island's cloud forest hosts not only high species richness but also high number of rare species, which is of prime interest for conservation planners.

  10. Rock size distributions on lava flow surfaces: New results from a range of compositions

    Science.gov (United States)

    Burke, M. P.; Anderson, S. W.; Bulmer, M. H.

    2005-12-01

    We measured block sizes along 15-25m orthogonal transects on 12 lava flows of compositions ranging from basalt to rhyolite. At each site, we stretched a line across the flow surface then measured the length of each block cut by this line that were greater than 3-12cm (depending on composition). The measurements from each site were reduced to cumulative size frequency distribution plots, with block size (D) plotted against the fraction of the line f(D) composed of blocks greater than or equal to that size, and fitted with an exponential curve of the form f(D) = k exp(-qD) where k is the intercept and q is the decay parameter. Average block size and geometric mean were also determined for each site. Our data show no clear trends linking average or mean block size to composition, although there does seem to be relationship between block size and the decay parameter. Block size corresponds with the decay parameter at each site except for the basaltic andesite flow at Paint Pot Crater (CA). Many sites at this flow were covered with secondary spatter deposits. Largest blocks and smallest decay parameters were found for the andesite flows at Sabancaya (Peru), while the basalt flows at Cima (CA) exhibited the smallest blocks and largest decay parameters. The second largest block sizes occurred at the four Inyo domes composed of both crystal-rich and glassy rhyolite, and these domes also showed the second smallest decay parameters. All four of the Inyo domes were emplaced along the same feeder dike trend, and the average and mean sizes and decay parameters at these domes are nearly identical, suggesting that composition, extrusion rate, or eruption history controls the block size distributions. However, values for the two andesitic flows, Mt. Shasta (CA) and Sabancaya, were very different, suggesting that extrusion rate and/or eruption history exert a stronger control over the block size distributions than does composition. LIDAR data sets are capable of detecting sub

  11. Range size heritability and diversification patterns in the liverwort genus Radula.

    Science.gov (United States)

    Patiño, Jairo; Wang, Jian; Renner, Matt A M; Gradstein, S Robbert; Laenen, Benjamin; Devos, Nicolas; Shaw, A Jonathan; Vanderpoorten, Alain

    2017-01-01

    Why some species exhibit larger geographical ranges than others, and to what extent does variation in range size affect diversification rates, remains a fundamental, but largely unanswered question in ecology and evolution. Here, we implement phylogenetic comparative analyses and ancestral area estimations in Radula, a liverwort genus of Cretaceous origin, to investigate the mechanisms that explain differences in geographical range size and diversification rates among lineages. Range size was phylogenetically constrained in the two sub-genera characterized by their almost complete Australasian and Neotropical endemicity, respectively. The congruence between the divergence time of these lineages and continental split suggests that plate tectonics could have played a major role in their present distribution, suggesting that a strong imprint of vicariance can still be found in extant distribution patterns in these highly mobile organisms. Amentuloradula, Volutoradula and Metaradula species did not appear to exhibit losses of dispersal capacities in terms of dispersal life-history traits, but evidence for significant phylogenetic signal in macroecological niche traits suggests that niche conservatism accounts for their restricted geographic ranges. Despite their greatly restricted distribution to Australasia and Neotropics respectively, Amentuloradula and Volutoradula did not exhibit significantly lower diversification rates than more widespread lineages, in contrast with the hypothesis that the probability of speciation increases with range size by promoting geographic isolation and increasing the rate at which novel habitats are encountered. We suggest that stochastic long-distance dispersal events may balance allele frequencies across large spatial scales, leading to low genetic structure among geographically distant areas or even continents, ultimately decreasing the diversification rates in highly mobile, widespread lineages. Copyright © 2016 Elsevier Inc. All

  12. Den sociale stofmisbrugsbehandling. Del 2

    DEFF Research Database (Denmark)

    Sørensen, Maren; Skov, Dorthe; Ellersgaard, Christoph

    Dette er den anden delrapport i en rapportserie om den sociale stofmisbrugsbehandling i Danmark. Rapportserien bygger på en omfattende undersøgelse, der blev fortaget i perioden december 2007 til maj 2009. Denne delrapport belyser den sociale stofmisbrugsbehandling i Danmark ud fra brugerne og de...

  13. Hvad karakteriserer den netbaserede vejledning?

    DEFF Research Database (Denmark)

    Kjeldsen, Lars Peter

    2008-01-01

    Hensigten med artiklen er at bidrage til forståelsen af sider ved den netbaserede vejledning. Fremgangsmåden vil være: •Først at beskrive og diskutere, hvorledes jeg forstår det virtuelle læringsmiljø, herunder en afklaring af, hvad der karakteriserer den netbaserede vejledning. •Dernæst gennem e...

  14. Den naturlige tillid og tilknytning

    DEFF Research Database (Denmark)

    Bo, Inger Glavind

    2008-01-01

    indstilling. Herved revurderes Alfred Schutz' begreb om den naturlige indstilling, idet tilliden nok er en del heraf og af den rutiniserede holdning i hverdagslivet, men også er rimelig skrøbelig og afhængig af del individets tidligere tilknytning, dels den fortsatte skabelse af ontologisk sikkerhed i...

  15. Dannelsen af den ansvarlige elev

    DEFF Research Database (Denmark)

    Larsen, Jesper

    2010-01-01

    Denne artikel handler om den del af lærergerningen, der har at gøre med udarbejdelse af elevplaner. Der tages udgangspunkt i en foucaultsk forståelse, hvor beskrivelsen af den enkelte elev udtrykker et særligt normativt ideal om, hvilke former for elevhed der er de ønskværdige i den danske...

  16. Kollegaerne er den nye chef

    DEFF Research Database (Denmark)

    Fugl, Marie

    2008-01-01

    Den tid, hvor chefen var den, der delte skideballer ud, er slut. Rollen som 'bad cop' er overtaget af kollegateamet, der med hård hånd sørger for, at den enkelte yder sin del. Udgivelsesdato: November...

  17. Den liberale tolerance

    DEFF Research Database (Denmark)

    Mchangama, Jacob; Andersen, Rasmus Fonnesbæk

    2012-01-01

    Tolerance er en kerneværdi i den liberal-demokratiske samfundsordenen, men i vor tid er det liberale tolerancebegreb om ikke at gribe ind i det, man ikke synes om, kommet under angreb fra flere sider, især som følge af problemer med indvandring og integration. Tolerance opfattes i stigende grad som...... begrænset tolerancebegreb igen bør træde i stedet for den multikulturalistisk inspirerede forståelse af tolerance, som er fremtrædende i dag, og som faktisk begrunder en institutionaliseret intolerance i form af en række begrænsninger på særligt ytringsfriheden....

  18. Den der ser, er den, der ses

    DEFF Research Database (Denmark)

    Bjerrum, Troels

    2010-01-01

    at foretage sig nødvendige samfundsmæssige valg. På grund af nederlag i hjem, skole, uddannelse og erhverv søger unge fællesskaber i ligestillede miljøer svarende til egen negative forventningspraksis. Den unge praktiserer en vanedannende negativ livsførelse, som eskalerer til yderligere socialt forfald. Unge......, der har levet i kriminalitet, misbrug og medmisbrug i lang tid, vil ikke være i stand til at realisere sig positivt pga. en personlig indgroet diskvalificerende forestilling. Afhandlingen forklarer, hvorledes negative oplevelser forbliver spændinger i menneskers krop. Teorier af Maurice Merleau...... begreb for personlig sammenhæng af kropslig tilstedeværelse og erkendelse. Bevidst kan udsatte unge forhindre vanedannende impulsstyring og lære sig selv at rette intension ud mod verden frem for aggression. Grundlæggende er det afhandlingens tese, at gentagende negative oplevelser lægger mønstret til...

  19. Quasi-long-range ordering in a finite-size 2D Heisenberg model

    CERN Document Server

    Kapikranian, O; Holovatch, Yu; Berche, Bertrand; Holovatch, Yurij; Kapikranian, Oleksandr

    2006-01-01

    We analyse the low-temperature behaviour of the Heisenberg model on a two-dimensional lattice of finite size. Presence of a residual magnetisation in a finite-size system enables us to use the spin wave approximation, which is known to give reliable results for the XY model at low temperatures T. For the system considered, we find that the spin-spin correlation function decays as 1/r^eta(T) for large separations r bringing about presence of a quasi-long-range ordering. We give analytic estimates for the exponent eta(T) in different regimes and support our findings by Monte Carlo simulations of the model on lattices of different sizes at different temperatures.

  20. Den retoriske situation

    DEFF Research Database (Denmark)

    Hansen, Jette Barnholdt

    2009-01-01

    Artiklen, som er skrevet på baggrund af et oplæg, som jeg holdt på  Årsmødet for Sektionen for Gymnasium og HF i Helsingør, oktober 2009, plæderer for anvendelsen af Lloyd F. Bitzers teori om den retoriske situation i retorikundervisningen i gymnasiet. I artiklen benytter jeg Bitzers teori som en...

  1. Den animerede bygning

    DEFF Research Database (Denmark)

    Bertram, Peter

    2008-01-01

    for ikke at gøre.[ii] Synets potentialitet er evnen til at se mørket, synets ikke - evne. Og hørelsens potentialitet er stilheden. Da begivenheden er fremmed og aldrig udfoldes, er det med ikke-evnen, at man kommer den i møde. Begivenheden forsvinder bag evnernes støj, der altid gentager, det de kan. Hvis...

  2. Den Magiske Kugle

    DEFF Research Database (Denmark)

    Nørgaard, Bent

    2007-01-01

    og ikke skader kroppens sunde celler. Metoden går ud på at indkapsle kræftmedicin i bittesmå fedtkugler, såkaldt "magiske kugler". I forestillingen følger vi de magiske kuglers fantastiske rejse: Lige fra deres spæde fødsel som en vision fremsat af den tyske nobelprisvinder dr. Paul Ehrlich i...

  3. Den moderne russiske stat

    DEFF Research Database (Denmark)

    Hansen, Flemming Splidsboel

    Briefet er inddelt i tre hovedafsnit. I første del gennemgås de tre verdensordener kort, og Flemming Splidsboel forklarer hvorledes de forholder sig til hinanden. Derefter diskuteres det russiske syn på fire elementer fra de moderne og postmoderne verdensordener - suverænitet, magt, de nationale ...... interesser og individets status. Flemming Splidsboel slutter af med at præsentere nogle tanker vedrørende den fremtidige læring i Rusland....

  4. Den interkonfessionelle dialog

    DEFF Research Database (Denmark)

    Pedersen, Else Marie Wiberg

    2006-01-01

    På baggrund af en gennemgang af det 20. århundredes økumeniske hermeneutik, foreslås det i denne artikel, at den økumeniske dialog (et ord, som oversættes forskelligt af de forskellige konfessioner) erstattes af en økumenisk diskurs (jf. Michel de Certau og Lukas Vischer). Der plæderes således fo...

  5. Villavejen og dens muligheder

    DEFF Research Database (Denmark)

    Vedel-Petersen, F.

    Publikationen handler om hvordan villavejen kan tilføres nye kvaliteter, blive smukkere, mere oplevelsesrig og sikker for de mange der bor og færdes på vejen. Den beskriver en lille villavej, Hjortekærbakken, og indeholder desuden en række råd og anvisninger vedrørende planlægning af nye villavej...

  6. Hvorfor den titel?

    DEFF Research Database (Denmark)

    Krejberg, Kasper Green

    2015-01-01

    Den skandaløse titel på Karl Ove Knausgårds store selvbiografi Min kamp 1-6 er ikke kun en provokation eller en ironisk kommentar, men udtryk for en gennemgående interesse for og fascination af nazismen. Artiklen ser denne fascination efter i sømmene og beskriver dermed, hvad formålet med referen...... referencen til Hitlers Mein Kampf kan være...

  7. Den gamle verdens magi

    DEFF Research Database (Denmark)

    Holck, Jakob Povl

    I denne bog præsenterer forskningsbibliotekar cand.mag., ph.d. Jakob Povl Holck sjældne bøger og andre biblioteksmaterialer fra Herlufsholm-samlingen på Syddansk Universitetsbibliotek i Odense. Bogens form udgør en mosaik af værker i tekst og især billeder med speciel vægt på ’den videnskabelige ...

  8. Umfang und Struktur der Stillen Reserve in den neuen Bundesländern (Size and structure of the hidden labour force in the new federal Länder)

    OpenAIRE

    Fuchs, Johann

    1998-01-01

    "Following the economic collapse in eastern Germany, in addition to the high level of unemployment, a hidden labour force of a considerable size has also developed in the new Länder. The IAB estimates the hidden labour force in the new Länder for 1997 to be more than 800,000 people. This estimation, however, is based in part on plausible assumptions for the development of labour force participation. This is because for methodical reasons the concept of the IAB labour force potential can not y...

  9. Comparative studies on plant range size: Linking reproductive and regenerative traits in two Ipomoea species

    Science.gov (United States)

    Astegiano, Julia; Funes, Guillermo; Galetto, Leonardo

    2010-09-01

    Reproductive and regenerative traits associated with colonization and persistence ability may determine plant range size. However, few comparative studies on plant distribution have assessed these traits simultaneously. Pollinator richness and frequency of visits, autonomous self-pollination ability, reproductive output (i.e., reproductive traits), seed bank strategy and seedling density (i.e., regenerative traits) were compared between the narrowly distributed Ipomoea rubriflora O'Donnell (Convolvulaceae) and its widespread congener Ipomoea purpurea (L.) Roth. The narrowly distributed species showed higher ecological specialization to pollinators and lower autonomous self-pollination ability. Frequency of visits, natural seed/ovule ratio and fruit set, and total fruit production did not differ between species. However, the number of seeds produced per fruit was lower in the narrowly distributed species, translating into lower total seed production per plant. Indeed, I. rubriflora formed smaller transient and persistent seed banks and showed lower seedling density than the widespread I. purpurea. These reproductive and regenerative trait results suggest that the narrowly distributed species may have lower colonization and persistence ability than its widespread congener. They further suggest that the negative effects of lower fecundity in the narrowly distributed species might persist in time through the long-lasting effects of total seed production on seed bank size, reducing the species' ability to buffered environmental stochasticity. However, other regenerative traits, such as seed size, and processes such as pre- and post-dispersal seed predation, might modulate the effects of plant fecundity on plant colonization and persistence ability and thus range size.

  10. Size distribution of radon decay products in the range 0.1-10 nm.

    Science.gov (United States)

    Zhukovsky, Michael; Rogozina, Marina; Suponkina, Anna

    2014-07-01

    Information about the size distribution of radioactive aerosols in nanometre range is essential for the purposes of air contamination monitoring, dose assessment to respiratory tract and planning of protective measures. The diffusion battery, which allows capturing particles in the size range of 0.1-10 nm, has developed. Interpreting data obtained from diffusion battery is very complex. The method of expectation maximisation by Maher and Laird was chosen for indirect inversion data. The experiments were performed in the box with equivalent equilibrium concentration of radon in the range of 7000-10,000 Bq m(-3). The three modes of size distribution of radon decay products aerosols were obtained: activity median thermodynamic diameter (AMTD) 0.3, 1.5 and 5 nm. These modes can be identified as: AMTD 0.3 nm--atoms of radon progeny (218Po in general); AMTD 1.5 nm--clusters of radon progeny atoms and non-radioactive atoms in the atmosphere; AMTD 5 nm--particles formed by coagulation of previous mode clusters with existing aerosol particles or nucleation of condensation nuclei containing atoms of radon progeny. © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  11. Performance of diethylene glycol-based particle counters in the sub-3 nm size range

    Directory of Open Access Journals (Sweden)

    D. Wimmer

    2013-07-01

    Full Text Available When studying new particle formation, the uncertainty in determining the "true" nucleation rate is considerably reduced when using condensation particle counters (CPCs capable of measuring concentrations of aerosol particles at sizes close to or even at the critical cluster size (1–2 nm. Recently, CPCs able to reliably detect particles below 2 nm in size and even close to 1 nm became available. Using these instruments, the corrections needed for calculating nucleation rates are substantially reduced compared to scaling the observed formation rate to the nucleation rate at the critical cluster size. However, this improved instrumentation requires a careful characterization of their cut-off size and the shape of the detection efficiency curve because relatively small shifts in the cut-off size can translate into larger relative errors when measuring particles close to the cut-off size. Here we describe the development of two continuous-flow CPCs using diethylene glycol (DEG as the working fluid. The design is based on two TSI 3776 counters. Several sets of measurements to characterize their performance at different temperature settings were carried out. Furthermore, two mixing-type particle size magnifiers (PSM A09 from Airmodus were characterized in parallel. One PSM was operated at the highest mixing ratio (1 L min−1 saturator flow, and the other was operated in a scanning mode, where the mixing ratios are changed periodically, resulting in a range of cut-off sizes. The mixing ratios are determined by varying the saturator flow, where the aerosol flow stays constant at 2.5 L min−1. Different test aerosols were generated using a nano-differential mobility analyser (nano-DMA or a high-resolution DMA, to obtain detection efficiency curves for all four CPCs. One calibration setup included a high-resolution mass spectrometer (APi-TOF for the determination of the chemical composition of the generated clusters. The lowest cut-off sizes were

  12. Performance of diethylene glycol based particle counters in the sub 3 nm size range

    Directory of Open Access Journals (Sweden)

    D. Wimmer

    2013-02-01

    Full Text Available When studying new particle formation, the uncertainty in determining the "true" nucleation rate is considerably reduced when using Condensation Particle Counters (CPCs capable of measuring concentrations of aerosol particles at sizes close to or even at the critical cluster size (1–2 nm. Recently CPCs, able to reliably detect particles below 2 nm in size and even close to 1 nm became available. The corrections needed to calculate nucleation rates are substantially reduced compared to scaling the observed formation rate to the nucleation rate at the critical cluster size. However, this improved instrumentation requires a careful characterization of their cut-off size and the shape of the detection efficiency curve because relatively small shifts in the cut-off size can translate into larger relative errors when measuring particles close to the cut-off size.

    Here we describe the development of two continuous flow CPCs using diethylene glycol (DEG as the working fluid. The design is based on two TSI 3776 counters. Several sets of measurements to characterize their performance at different temperature settings were carried out. Furthermore two mixing-type Particle Size Magnifiers (PSM A09 from Airmodus were characterized in parallel. One PSM was operated at the highest mixing ratio (1 L min−1 saturator flow, and the other was operated in a scanning mode, where the mixing ratios are changed periodically, resulting in a range of cut-off sizes. Different test aerosols were generated using a nano-Differential Mobility Analyzer (nano-DMA or a high resolution DMA, to obtain detection efficiency curves for all four CPCs. One calibration setup included a high resolution mass spectrometer (APi-TOF for the determination of the chemical composition of the generated clusters. The lowest cut-off sizes were achieved with negatively charged ammonium sulphate clusters, resulting in cut-offs of 1.4 nm for the laminar flow CPCs and 1.2 and 1

  13. Lead particle size and its association with firing conditions and range maintenance: implications for treatment.

    Science.gov (United States)

    Dermatas, Dimitris; Chrysochoou, Maria

    2007-08-01

    Six firing range soils were analyzed, representing different environments, firing conditions, and maintenance practices. The particle size distribution and lead (Pb) concentration in each soil fraction were determined for samples obtained from the backstop berms. The main factors that were found to influence Pb fragment size were the type of soil used to construct the berms and the type of weapon fired. The firing of high velocity weapons, i.e., rifles, onto highly angular soils induced significant fragmentation of the bullets and/or pulverization of the soil itself. This resulted in the accumulation of Pb in the finer soil fractions and the spread of Pb contamination beyond the vicinity of the backstop berm. Conversely, the use of clay as backstop and the use of low velocity pistols proved to be favorable for soil clean-up and range maintenance, since Pb was mainly present as large metallic fragments that can be recovered by a simple screening process. Other factors that played important roles in Pb particle size distribution were soil chemistry, firing distance, and maintenance practices, such as the use of water spray for dust suppression and deflectors prior to impact. Overall, coarse Pb particles provide much easier and more cost-effective maintenance, soil clean-up, and remediation via physical separation. Fine Pb particles release Pb more easily, pose an airborne Pb hazard, and require the application of stabilization/solidification treatment methods. Thus, to ensure sustainable firing range operations by means of cost-effective design, maintenance, and clean-up, especially when high velocity weapons are used, the above mentioned factors should be carefully considered.

  14. An Improved Method for Including Upper Size Range Plasmids in Metamobilomes

    DEFF Research Database (Denmark)

    Norman, Anders; Riber, Leise; Luo, Wenting

    2014-01-01

    cloning vector (pBR322), and a 56 Kbp conjugative plasmid (pKJK10), to represent lower- and upper plasmid size ranges, respectively. Subjecting a mixture of these plasmids to the overall isolation protocol revealed a 34-fold over-amplification of pBR322 after MDA. To address this bias, we propose......, as gene functions associated with these plasmids, such as conjugation, was exclusively encoded in the data output generated through the modified protocol. Thus, with the suggested modification, access to a large uncharacterized pool of accessory elements that reside on medium-to-large plasmids has been...

  15. Microhabitat selection, demography, and correlates of home range size for the King Rail (Rallus elegans)

    Science.gov (United States)

    Pickens, Bradley A.; King, Sammy L.

    2013-01-01

    Animal movements and habitat selection within the home range, or microhabitat selection, can provide insights into habitat requirements, such as foraging and area requirements. The King Rail (Rallus elegans) is a wetland bird of high conservation concern in the United States, but little is known about its movements, habitats, or demography. King Rails (n = 34) were captured during the 2010–2011 breeding seasons in the coastal marshes of southwest Louisiana and southeast Texas. Radio telemetry and direct habitat surveys of King Rail locations were conducted to estimate home ranges and microhabitat selection. Within home ranges, King Rails selected for greater plant species richness and comparatively greater coverage of Phragmites australis, Typha spp., and Schoenoplectus robustus. King Rails were found closer to open water compared to random locations placed 50 m from King Rail locations. Home ranges (n = 22) varied from 0.8–32.8 ha and differed greatly among sites. Home range size did not vary by year or sex; however, increased open water, with a maximum of 29% observed in the study, was correlated with smaller home ranges. Breeding season cumulative survivorship was 89% ± 22% in 2010 and 61% ± 43% in 2011, which coincided with a drought. With an equal search effort, King Rail chicks and juveniles observed in May-June decreased from 110 in 2010 to only 16 in the drier year of 2011. The findings show King Rail used marsh with ≤ 29% open water and had smaller home ranges when open water was more abundant.

  16. Asymmetric dihedral angle offsets for large-size lunar laser ranging retroreflectors

    Science.gov (United States)

    Otsubo, Toshimichi; Kunimori, Hiroo; Noda, Hirotomo; Hanada, Hideo; Araki, Hiroshi; Katayama, Masato

    2011-08-01

    The distribution of two-dimensional velocity aberration is off-centered by 5 to 6 microradians in lunar laser ranging, due to the stable measurement geometry in the motion of the Earth and the Moon. The optical responses of hollow-type retroreflectors are investigated through numerical simulations, especially focusing on large-size, single-reflector targets that can ultimately minimize the systematic error in future lunar laser ranging. An asymmetric dihedral angle offset, i.e. setting unequal angles between the three back faces, is found to be effective for retroreflectors that are larger than 100 mm in diameter. Our numerical simulation results reveal that the optimized return energy increases approximately 3.5 times more than symmetric dihedral angle cases, and the optimized dihedral angle offsets are 0.65-0.8 arcseconds for one angle, and zeroes for the other two angles.

  17. Mechanobiological induction of long-range contractility by diffusing biomolecules and size scaling in cell assemblies

    Science.gov (United States)

    Dasbiswas, K.; Alster, E.; Safran, S. A.

    2016-06-01

    Mechanobiological studies of cell assemblies have generally focused on cells that are, in principle, identical. Here we predict theoretically the effect on cells in culture of locally introduced biochemical signals that diffuse and locally induce cytoskeletal contractility which is initially small. In steady-state, both the concentration profile of the signaling molecule as well as the contractility profile of the cell assembly are inhomogeneous, with a characteristic length that can be of the order of the system size. The long-range nature of this state originates in the elastic interactions of contractile cells (similar to long-range “macroscopic modes” in non-living elastic inclusions) and the non-linear diffusion of the signaling molecules, here termed mechanogens. We suggest model experiments on cell assemblies on substrates that can test the theory as a prelude to its applicability in embryo development where spatial gradients of morphogens initiate cellular development.

  18. Den naturfaglige evalueringskultur i folkeskolen

    DEFF Research Database (Denmark)

    Dolin, Jens; Krogh, Lars Brian

    2008-01-01

    Formålet med denne rapport er at etablere et grundlag for at kunne vurdere, hvorvidt PISAs testformat og tilgang til testning svarer til den evalueringskultur, der er fremherskende i naturfagene i de ældste klasser i den danske folkeskole.   Rapporten indledes med en kortfattet oversigt over nogl...... at tage PISA-science testen.   Rapporten slutter med en konklusion over de vigtigste resultater, hvor PISA-science testen sammenholdes med den danske evalueringskultur....

  19. Size-Related Differences in the Thermoregulatory Habits of Free-Ranging Komodo Dragons

    Directory of Open Access Journals (Sweden)

    Henry J. Harlow

    2010-01-01

    Full Text Available Thermoregulatory processes were compared among three-size groups of free-ranging Komodo dragons (Varanus komodoensis comprising small (5–20 kg, medium (20–40 gm and large (40–70 kg lizards. While all size groups maintained a similar preferred body temperature of ≈35∘C, they achieved this end point differently. Small dragons appeared to engage in sun shuttling behavior more vigorously than large dragons as represented by their greater frequency of daily ambient temperature and light intensity changes as well as a greater activity and overall exposure to the sun. Large dragons were more sedentary and sun shuttled less. Further, they appear to rely to a greater extent on microhabitat selection and employed mouth gaping evaporative cooling to maintain their preferred operational temperature and prevent overheating. A potential ecological consequence of size-specific thermoregulatory habits for dragons is separation of foraging areas. In part, differences in thermoregulation could contribute to inducing shifts in predatory strategies from active foraging in small dragons to more sedentary sit-and-wait ambush predators in adults.

  20. Diffusion of Oxygen Isotopes in Thermally Evolving Planetesimals and Size Ranges of Presolar Silicate Grains

    Science.gov (United States)

    Wakita, Shigeru; Nozawa, Takaya; Hasegawa, Yasuhiro

    2017-02-01

    Presolar grains are small particles found in meteorites through their isotopic compositions, which are considerably different from those of materials in the solar system. If some isotopes in presolar grains diffused out beyond their grain sizes when they were embedded in parent bodies of meteorites, their isotopic compositions could be washed out, and hence the grains could no longer be identified as presolar grains. We explore this possibility for the first time by self-consistently simulating the thermal evolution of planetesimals and the diffusion length of 18O in presolar silicate grains. Our results show that presolar silicate grains smaller than ˜0.03 μm cannot keep their original isotopic compositions even if the host planetesimals experienced a maximum temperature as low as 600 °C. Since this temperature corresponds to that experienced by petrologic type 3 chondrites, isotopic diffusion can constrain the size of presolar silicate grains discovered in such chondrites to be larger than ˜0.03 μm. We also find that the diffusion length of 18O reaches ˜0.3-2 μm in planetesimals that were heated up to 700-800°C. This indicates that, if the original size of presolar grains spans a range from ˜0.001 μm to ˜0.3 μm like that in the interstellar medium, then the isotopic records of the presolar grains may be almost completely lost in such highly thermalized parent bodies. We propose that isotopic diffusion could be a key process to control the size distribution and abundance of presolar grains in some types of chondrites.

  1. Next generation cooled long range thermal sights with minimum size, weight, and power

    Science.gov (United States)

    Breiter, R.; Ihle, T.; Wendler, J.; Rühlich, I.; Ziegler, J.

    2013-06-01

    Situational awareness and precise targeting at day, night and severe weather conditions are key elements for mission success in asymmetric warfare. To support these capabilities for the dismounted soldier, AIM has developed a family of stand-alone thermal weapon sights based on high performance cooled IR-modules which are used e.g. in the infantryman of the future program of the German army (IdZ). The design driver for these sights is a long ID range system of the German army with additional capabilities like a wireless data link to the soldier backbone computer. Minimum size, weight and power (SWaP) are most critical requirements for the dismounted soldiers' equipment and sometimes push a decision towards uncooled equipment with marginal performance referring to the outstanding challenges in current asymmetric warfare, e.g. the capability to distinguish between combatants and non-combatants in adequate ranges. To provide the uncompromised e/o performance with SWaP parameters close to uncooled, AIM has developed a new thermal weapon sight based on high operating temperature (HOT) MCT MWIR FPAs together with a new low power single piston stirling cooler. In basic operation the sight is used as a clip-on in front of the rifle scope. An additional eyepiece for stand-alone targeting with e.g. AGLs or a biocular version for relaxed surveillance will be available. The paper will present details of the technologies applied for such long range cooled sights with size, weight and power close to uncooled.

  2. Do turtles follow the rules? Latitudinal gradients in species richness, body size, and geographic range area of the world's turtles.

    Science.gov (United States)

    Angielczyk, Kenneth D; Burroughs, Robert W; Feldman, Chris R

    2015-05-01

    Understanding how and why biodiversity is structured across the globe has been central to ecology, evolution, and biogeography even before those disciplines took their modern forms. Three global-scale patterns in particular have been the focus of research and debate for decades: latitudinal gradients in species richness (richness decreases with increasing latitude), body size (body size increases with increasing latitude in endotherms; Bergmann's rule), and geographic range size (range size increases with increasing latitude; Rapoport's rule). Despite decades of study, the generality and robustness of these trends have been debated, as have their underlying causes. Here we investigate latitudinal gradients in species richness, body size, and range size in the world's turtles (Testudines), and add more evidence that these rules do not seem to apply across all taxa. We show that turtle diversity actually peaks at 25° north, a highly unusual global pattern. Turtles also fail to follow Bergmann's Rule, and may show the converse (larger at lower latitudes), though trends are weak. Turtles also show a complex relationship between latitude and range size that does not directly follow Rapoport's rule. Body size and geographic range size are significantly correlated, and multiple abiotic and biotic variables help explain the relationships between latitude and species diversity, body size, and range size. Although we show that turtles do not strictly follow some classic biogeographical rules, we also call for further in-depth research to investigate potential causal mechanisms for these atypical patterns.

  3. Molecular mass ranges of coal tar pitch fractions by mass spectrometry and size-exclusion chromatography.

    Science.gov (United States)

    Karaca, F; Morgan, T J; George, A; Bull, I D; Herod, A A; Millan, M; Kandiyoti, R

    2009-07-01

    A coal tar pitch was fractionated by solvent solubility into heptane-solubles, heptane-insoluble/toluene-solubles (asphaltenes), and toluene-insolubles (preasphaltenes). The aim of the work was to compare the mass ranges of the different fractions by several different techniques. Thermogravimetric analysis, size-exclusion chromatography (SEC) and UV-fluorescence spectroscopy showed distinct differences between the three fractions in terms of volatility, molecular size ranges and the aromatic chromophore sizes present. The mass spectrometric methods used were gas chromatography/mass spectrometry (GC/MS), pyrolysis/GC/MS, electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICRMS) and laser desorption time-of-flight mass spectrometry (LD-TOFMS). The first three techniques gave good mass spectra only for the heptane-soluble fraction. Only LDMS gave signals from the toluene-insolubles, indicating that the molecules were too involatile for GC and too complex to pyrolyze into small molecules during pyrolysis/GC/MS. ESI-FTICRMS gave no signal for toluene-insolubles probably because the fraction was insoluble in the methanol or acetonitrile, water and formic acid mixture used as solvent to the ESI source. LDMS was able to generate ions from each of the fractions. Fractionation of complex samples is necessary to separate smaller molecules to allow the use of higher laser fluences for the larger molecules and suppress the formation of ionized molecular clusters. The upper mass limit of the pitch was determined as between 5000 and 10,000 u. The pitch asphaltenes showed a peak of maximum intensity in the LDMS spectra at around m/z 400, in broad agreement with the estimate from SEC. The mass ranges of the toluene-insoluble fraction found by LDMS and SEC (400-10,000 u with maximum intensity around 2000 u by LDMS and 100-9320 u with maximum intensity around 740 u by SEC) are higher than those for the asphaltene fraction (200-4000 u with

  4. Velkommen til den posthumane tilstand

    DEFF Research Database (Denmark)

    Wamberg, Jacob

    2015-01-01

    Hvorfor er moderne kunst så insisterende mærkværdig? Fordi den udforsker en posthuman tilstand, som bliver stadig mere påtrængende.......Hvorfor er moderne kunst så insisterende mærkværdig? Fordi den udforsker en posthuman tilstand, som bliver stadig mere påtrængende....

  5. Stordriftsfordele i den danske banksektor?

    DEFF Research Database (Denmark)

    Kristensen, Troels

    2008-01-01

    Dette er en empirisk undersøgelse af skalaegenskaber (economies of scale) i den danske banksektor baseret på cross-section data. Banksektorens omkostningsfunktion er estimeret vha. en translogomkostningsfunktion og OLS-regression. Ud fra den estimerede omkostningsfunktion er skalaegenskaberne...

  6. Neue Anforderungen an den Datenschutz

    Science.gov (United States)

    Dix, Alexander

    Eine von der Europäischen Kommission 2003 in Auftrag gegebene Studie hat die rasante technische Entwicklung hin zu "Ambient Intelligence Technologies“ als die größte Herausforderung für den Datenschutz bezeichnet, die sogar größer als die Herausforderung durch den internationalen Terrorismus nach dem 11. September sei.

  7. Den naturlige tillid og tilknytning

    DEFF Research Database (Denmark)

    Bo, Inger Glavind

    2008-01-01

    Giddens og Johan Bowlbys forståelser af den fundamentale tillid eller sikker base kædes tilliden sammen med det spæde barns tilknytning til sine primære omsorgspersoner, da det er her fundamentet for senere tilknytningsadfærd og tillidsrelationer etableres som en integreret del af den naturlige...

  8. Forord til den danske udgave

    DEFF Research Database (Denmark)

    Egelund, Niels

    2014-01-01

    Forord til den danske udgave af: Leading and managing a differentiated classroom / af Carol Ann Tomlinson og Marcia B. Imbeau......Forord til den danske udgave af: Leading and managing a differentiated classroom / af Carol Ann Tomlinson og Marcia B. Imbeau...

  9. Den medicinal-industrielle logik

    DEFF Research Database (Denmark)

    Børsen, Tom

    2008-01-01

    Et kig på medicinalindustrien og den logik der styrer udviklingen af nye lægemidler. Antagelsen er, at der også eksisterer et medicinalindustrielt kompleks, bestående af ledende industrifolk, læger, forskere og regeringsembedsmænd, der alle har kommercielle interesser i den herskende lægemiddeltæ...

  10. Litteratur i den argumentative ret

    DEFF Research Database (Denmark)

    Jørgensen, Stine

    2007-01-01

    Med udgangspunkt i den litterære rett, slik som denne er udviklet af den amerikanske retsfilosof Martha Nussbaum, argumentere de for, at litteraturen er velegnet som en metode til at opnå menneskelig forståelse. Som led i denne problemstillingen behandles følelsenes plads i retsvidenskaben. Endelig...

  11. Den narrative tilgang

    DEFF Research Database (Denmark)

    Bo, Inger Glavind

    2016-01-01

    I kapitlet gennemgås en socialkonstruktivistisk forståelse af narrativer. I kapitlet vil jeg gennemgå centrale teoretiske pointer, der samlet set er grundlæggende for en social konstruktivistisk forståelse af narrativer for herved at udfolde forståelsen af den narrative tilgang og desuden...... tydeliggøre, hvordan tilgangen er forbundet med en særlig forståelse af identitetsskabelse. Der er tale om pointer der almindeligvis forbindes med ”små fortællinger” i form af længere identitetsfortællinger og narrative interviews. Kapitlet gennemgår således centrale inspirationskilder og teoretiske pointer...

  12. Sizing Power Components of an Electrically Driven Tail Cone Thruster and a Range Extender

    Science.gov (United States)

    Jansen, Ralph H.; Bowman, Cheryl; Jankovsky, Amy

    2016-01-01

    The aeronautics industry has been challenged on many fronts to increase efficiency, reduce emissions, and decrease dependency on carbon-based fuels. This paper provides an overview of the turboelectric and hybrid electric technologies being developed under NASA's Advanced Air Transportation Technology (AATT) Project and discusses how these technologies can impact vehicle design. The discussion includes an overview of key hybrid electric studies and technology investments, the approach to making informed investment decisions based on key performance parameters and mission studies, and the power system architectures for two candidate aircraft. Finally, the power components for a single-aisle turboelectric aircraft with an electrically driven tail cone thruster and for a hybrid-electric nine-passenger aircraft with a range extender are parametrically sized, and the sensitivity of these components to key parameters is presented.

  13. Chromosomal diversity in tropical reef fishes is related to body size and depth range.

    Science.gov (United States)

    Martinez, P A; Zurano, J P; Amado, T F; Penone, C; Betancur-R, R; Bidau, C J; Jacobina, U P

    2015-12-01

    Tropical reef fishes show contrasting patterns of karyotypic diversity. Some families have a high chromosomal conservatism while others show wide variation in karyotypic macrostructure. However, the influence of life-history traits on karyotypic diversity is largely unknown. Using phylogenetic comparative methods, we assessed the effects of larval and adult species traits on chromosomal diversity rates of 280 reef species in 24 families. We employed a novel approach to account for trait variation within families as well as phylogenetic uncertainties. We found a strong negative relationship between karyotypic diversity rates and body size and depth range. These results suggest that lineages with higher dispersal potential and gene flow possess lower karyotypic diversity. Taken together, these results provide evidence that biological traits might modulate the rate of karyotypic diversity in tropical reef fishes.

  14. Coarsening dynamics in condensing zero-range processes and size-biased birth death chains

    Science.gov (United States)

    Jatuviriyapornchai, Watthanan; Grosskinsky, Stefan

    2016-05-01

    Zero-range processes with decreasing jump rates are well known to exhibit a condensation transition under certain conditions on the jump rates, and the dynamics of this transition continues to be a subject of current research interest. Starting from homogeneous initial conditions, the time evolution of the condensed phase exhibits an interesting coarsening phenomenon of mass transport between cluster sites characterized by a power law. We revisit the approach in Godrèche (2003 J. Phys. A: Math. Gen. 36 6313) to derive effective single site dynamics which form a nonlinear birth death chain describing the coarsening behavior. We extend these results to a larger class of parameter values, and introduce a size-biased version of the single site process, which provides an effective tool to analyze the dynamics of the condensed phase without finite size effects and is the main novelty of this paper. Our results are based on a few heuristic assumptions and exact computations, and are corroborated by detailed simulation data.

  15. Den Sønderjyske Historiekanon

    DEFF Research Database (Denmark)

    2015-01-01

    Den Sønderjyske Historiekanon er et interaktivt læremiddel, hvor elever og andre interesserede kan blive klogere på den sønderjyske historie og debattere, hvilke begivenheder i Sønderjyllands historie der har størst betydning for deres liv i dag. På den måde kan de få en fornemmelse for, hvorfor...... det er væsentligt at forholde sig til fortiden. Den primære målgruppe er unge i folkeskolens ældre klasser og på ungdomsuddannelserne. Den Sønderjyske Historiekanon præsenterer gennem tekst og video 20 forskellige højdepunkter fra den sønderjyske historie. Opretter man en bruger, kan man deltage i...... afstemningsresultat for alle unge sønderjyske brugere, kaldet ”Den Fælles Sønderjyske Historiekanon”. Begge disse kanoner kan sammen med hjemmesidens materiale om historiebevidsthed bruges som udgangspunkt for refleksioner om, i hvilken grad man i dag kan tale om en særlig sønderjysk identitet....

  16. Predictable variation of range-sizes across an extreme environmental gradient in a lizard adaptive radiation: evolutionary and ecological inferences.

    Directory of Open Access Journals (Sweden)

    Daniel Pincheira-Donoso

    Full Text Available Large-scale patterns of current species geographic range-size variation reflect historical dynamics of dispersal and provide insights into future consequences under changing environments. Evidence suggests that climate warming exerts major damage on high latitude and elevation organisms, where changes are more severe and available space to disperse tracking historical niches is more limited. Species with longer generations (slower adaptive responses, such as vertebrates, and with restricted distributions (lower genetic diversity, higher inbreeding in these environments are expected to be particularly threatened by warming crises. However, a well-known macroecological generalization (Rapoport's rule predicts that species range-sizes increase with increasing latitude-elevation, thus counterbalancing the impact of climate change. Here, I investigate geographic range-size variation across an extreme environmental gradient and as a function of body size, in the prominent Liolaemus lizard adaptive radiation. Conventional and phylogenetic analyses revealed that latitudinal (but not elevational ranges significantly decrease with increasing latitude-elevation, while body size was unrelated to range-size. Evolutionarily, these results are insightful as they suggest a link between spatial environmental gradients and range-size evolution. However, ecologically, these results suggest that Liolaemus might be increasingly threatened if, as predicted by theory, ranges retract and contract continuously under persisting climate warming, potentially increasing extinction risks at high latitudes and elevations.

  17. Den iscenesatte folkelighed

    Directory of Open Access Journals (Sweden)

    Néstor Garcia Canclini

    1994-09-01

    Full Text Available Hvad er "det folkelige" og hvad er "folkekultur"? Néstor Garcia Canclini har i denne artikel sat sig for at dekonstruere begrebet "det folkelige" og beskrive den måde, forskellige grupper bruger og misbruger begrebet på. Han analyserer tre fremherskende idéer om folkelighed: folkloristernes romantiske idé om det oprindelige, der blev ødelagt af massekulturen, massemediernes popularitetsbegreb og endelig populisternes - både de højre- og venstreorienteredes - iscenesættelse af folkeligheden. Desuden ser han på to marxistiske skolers opfattelse af forholdet mellem de dominerende og undertrykte klasser og forskellige definitioner af folkelig- hed. Ligesom Anamaria Fadul argumenterer Canclini for nødvendigheden af en ny, tværdiciplinær forskning, som opfanger kompleksitet og flerty- digheder i forholdet mellem de undertrykte og dominerende og ser "det folkelige" som en tragisk komedie med modsætninger og flertydighed snarere end en evigt fremadskrivende episk fortælling. Artiklen er en forkortet udgave af kapitel 5 i Canclinis bog fra 1989: "Culturas Hibridas - Estrategias para entrat y salir de la modernidad. Mexico: Grijalbo.

  18. Physiological, ecological, and behavioural correlates of the size of the geographic ranges of sea kraits (Laticauda; Elapidae, Serpentes): A critique

    Science.gov (United States)

    Heatwole, Harold; Lillywhite, Harvey; Grech, Alana

    2016-09-01

    Recent, more accurate delineation of the distributions of sea kraits and prior dubious use of proxy temperatures and mean values in correlative studies requires re-assessment of the relationships of temperature and salinity as determinants of the size of the geographic ranges of sea kraits. Correcting the sizes of geographic ranges resolved the paradox of lack of correspondence of size of range with degree of terrestrialism, but did not form a definitive test of the theory. Recent ecological, physiological, and behavioural studies provide an example of the kind of approach likely to either validate or refute present theory.

  19. Excitation Gaps of Finite-Sized Systems from Optimally Tuned Range-Separated Hybrid Functionals.

    Science.gov (United States)

    Kronik, Leeor; Stein, Tamar; Refaely-Abramson, Sivan; Baer, Roi

    2012-05-08

    Excitation gaps are of considerable significance in electronic structure theory. Two different gaps are of particular interest. The fundamental gap is defined by charged excitations, as the difference between the first ionization potential and the first electron affinity. The optical gap is defined by a neutral excitation, as the difference between the energies of the lowest dipole-allowed excited state and the ground state. Within many-body perturbation theory, the fundamental gap is the difference between the corresponding lowest quasi-hole and quasi-electron excitation energies, and the optical gap is addressed by including the interaction between a quasi-electron and a quasi-hole. A long-standing challenge has been the attainment of a similar description within density functional theory (DFT), with much debate on whether this is an achievable goal even in principle. Recently, we have constructed and applied a new approach to this problem. Anchored in the rigorous theoretical framework of the generalized Kohn-Sham equation, our method is based on a range-split hybrid functional that uses exact long-range exchange. Its main novel feature is that the range-splitting parameter is not a universal constant but rather is determined from first principles, per system, based on satisfaction of the ionization potential theorem. For finite-sized objects, this DFT approach mimics successfully, to the best of our knowledge for the first time, the quasi-particle picture of many-body theory. Specifically, it allows for the extraction of both the fundamental and the optical gap from one underlying functional, based on the HOMO-LUMO gap of a ground-state DFT calculation and the lowest excitation energy of a linear-response time-dependent DFT calculation, respectively. In particular, it produces the correct optical gap for the difficult case of charge-transfer and charge-transfer-like scenarios, where conventional functionals are known to fail. In this perspective, we overview

  20. The mid-domain effect matters: simulation analyses of range-size distribution data from Mount Kinabalu, Borneo

    DEFF Research Database (Denmark)

    Grytnes, John-Arvid; Beaman, John H.; Romdal, Tom Skovlund;

    2008-01-01

    Aim In simulation exercises, mid-domain peaks in species richness arise as a result of the random placement of modelled species ranges within simulated geometric constraints. This has been called the mid-domain effect (MDE). Where close correspondence is found between such simulations and empirical...... within the domain (range-restricted MDE), and a model encompassing all species with the theoretical midpoint within the domain (midpoint-restricted MDE). These predictions are compared with observations from the elevational pattern of range-size distributions and species richness of vascular plants....... The distribution of range sizes gives different predictions between models including the MDE or not. Here, we produce predictions for species richness and distribution of range sizes from one model without the MDE and from two MDE models: a classical MDE model encompassing only species with their entire range...

  1. Performance of diethylene glycol-based particle counters in the sub-3 nm size range

    CERN Document Server

    Wimmer, D; Franchin, A; Kangasluoma, J; Kreissl, F; Kürten, A; Kupc, A; Metzger, A; Mikkilä, J; Petäjä, J; Riccobono, F; Vanhanen, J; Kulmala, M; Curtius, J

    2013-01-01

    When studying new particle formation, the uncertainty in determining the "true" nucleation rate is considerably reduced when using condensation particle counters (CPCs) capable of measuring concentrations of aerosol particles at sizes close to or even at the critical cluster size (1–2 nm). Recently, CPCs able to reliably detect particles below 2 nm in size and even close to 1 nm became available. Using these instruments, the corrections needed for calculating nucleation rates are substantially reduced compared to scaling the observed formation rate to the nucleation rate at the critical cluster size. However, this improved instrumentation requires a careful characterization of their cut-off size and the shape of the detection efficiency curve because relatively small shifts in the cut-off size can translate into larger relative errors when measuring particles close to the cut-off size. Here we describe the development of two continuous-flow CPCs using diethylene glycol (DEG) as the working fluid. The desig...

  2. Whitebark pine, population density, and home-range size of grizzly bears in the greater yellowstone ecosystem.

    Science.gov (United States)

    Bjornlie, Daniel D; Van Manen, Frank T; Ebinger, Michael R; Haroldson, Mark A; Thompson, Daniel J; Costello, Cecily M

    2014-01-01

    Changes in life history traits of species can be an important indicator of potential factors influencing populations. For grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem (GYE), recent decline of whitebark pine (WBP; Pinus albicaulis), an important fall food resource, has been paired with a slowing of population growth following two decades of robust population increase. These observations have raised questions whether resource decline or density-dependent processes may be associated with changes in population growth. Distinguishing these effects based on changes in demographic rates can be difficult. However, unlike the parallel demographic responses expected from both decreasing food availability and increasing population density, we hypothesized opposing behavioral responses of grizzly bears with regard to changes in home-range size. We used the dynamic changes in food resources and population density of grizzly bears as a natural experiment to examine hypotheses regarding these potentially competing influences on grizzly bear home-range size. We found that home-range size did not increase during the period of whitebark pine decline and was not related to proportion of whitebark pine in home ranges. However, female home-range size was negatively associated with an index of population density. Our data indicate that home-range size of grizzly bears in the GYE is not associated with availability of WBP, and, for female grizzly bears, increasing population density may constrain home-range size.

  3. Whitebark pine, population density, and home-range size of grizzly bears in the greater yellowstone ecosystem.

    Directory of Open Access Journals (Sweden)

    Daniel D Bjornlie

    Full Text Available Changes in life history traits of species can be an important indicator of potential factors influencing populations. For grizzly bears (Ursus arctos in the Greater Yellowstone Ecosystem (GYE, recent decline of whitebark pine (WBP; Pinus albicaulis, an important fall food resource, has been paired with a slowing of population growth following two decades of robust population increase. These observations have raised questions whether resource decline or density-dependent processes may be associated with changes in population growth. Distinguishing these effects based on changes in demographic rates can be difficult. However, unlike the parallel demographic responses expected from both decreasing food availability and increasing population density, we hypothesized opposing behavioral responses of grizzly bears with regard to changes in home-range size. We used the dynamic changes in food resources and population density of grizzly bears as a natural experiment to examine hypotheses regarding these potentially competing influences on grizzly bear home-range size. We found that home-range size did not increase during the period of whitebark pine decline and was not related to proportion of whitebark pine in home ranges. However, female home-range size was negatively associated with an index of population density. Our data indicate that home-range size of grizzly bears in the GYE is not associated with availability of WBP, and, for female grizzly bears, increasing population density may constrain home-range size.

  4. Wind power systems in the MW range. Part 2. Digital control of a double-fed asynchronous generator without position control; Windkraftanlagen fuer den Megawatt-Bereich. Teil 2. Digitale Steuerung eines doppelt gespeisten Asynchrongenerators ohne Lagegeber

    Energy Technology Data Exchange (ETDEWEB)

    Ehrenberg, J. [sci-worx GmbH, Braunschweig (Germany); Andresen, B.; Rebsdorf, A.V. [Vestas Wind Systems A/S (Denmark)

    2001-09-18

    While the first part investigated the characteristics of synchronous and asynchronous generators for wind power system development and presented theoretical fundamentals, part 2 discusses practical problems of synchronisation with the network and interpretation of measurements as illustrated by a prototype 2 MW wind power plant. [German] Nach einem Vergleich der Eignung von Synchron- und Asynchrongeneratoren fuer die Konzeption von Windkraftanlagen und einer Darstellung der Theoretischen Grundlagen im Teil 1 widmet sich der zweite Teil des Beitrages den praktischen Fragen der Synchronisation zum Netz und der Interpretation der Messergebnisse an dem Prototyp einer 2-MW-Windkraftanlage. (org.)

  5. Selection of den sites by black bears in the southern Appalachians

    Science.gov (United States)

    Reynolds-Hogland, M. J.; Mitchell, M.S.; Powell, R.A.; Brown, D.C.

    2007-01-01

    We evaluated selection of den sites by American black bears (Ursus americanus) in the Pisgah Bear Sanctuary, western North Carolina, by comparing characteristics of dens at 53 den sites with availability of habitat characteristics in annual home ranges of bears and in the study area. We also tested whether den-site selection differed by sex, age, and reproductive status of bears. In addition, we evaluated whether the den component of an existing habitat model for black bears predicted where bears would select den sites. We found bears selected den sites far from gravel roads, on steep slopes, and at high elevations relative to what was available in both annual home ranges and in the study area. Den-site selection did not differ by sex or age, but it differed by reproductive status. Adult females with cubs preferred to den in areas that were relatively far from gravel roads, but adult females without cubs did not. The habitat model overestimated the value of areas near gravel roads, underestimated the value of moderately steep areas, and did not include elevation as a predictor variable. Our results highlight the importance of evaluating den selection in terms of both use and availability of den characteristics. ?? 2007 American Society of Mammalogists.

  6. Events i den globale bykonkurrence

    DEFF Research Database (Denmark)

    Østergaard, Katrine

    2005-01-01

    Paper til ph.d. workshop, d. 9. december 2005. Dette paper beskriver, hvorfor og hvordan events kan bruges som strategi for byplanlægning og byudvikling i den globale bykonkurrence.......Paper til ph.d. workshop, d. 9. december 2005. Dette paper beskriver, hvorfor og hvordan events kan bruges som strategi for byplanlægning og byudvikling i den globale bykonkurrence....

  7. Den Blå Drage

    DEFF Research Database (Denmark)

    Ingerslev, Gitte Holten

    Denne publikation i serien Læselyst tjener tre formål. Den evaluerer læseprojektet Den blå drage i efteråret 2004 på Byskolen i Svendborg ? et projekt ledet af forfatteren Josefine Ottesen. Desuden gøres der rede for nogle af de teorier der støtter og begrunder arbejdsmåde og resultater i projektet...

  8. Den Blå Drage

    DEFF Research Database (Denmark)

    Ingerslev, Gitte Holten

    Denne publikation i serien Læselyst tjener tre formål. Den evaluerer læseprojektet Den blå drage i efteråret 2004 på Byskolen i Svendborg ? et projekt ledet af forfatteren Josefine Ottesen. Desuden gøres der rede for nogle af de teorier der støtter og begrunder arbejdsmåde og resultater i projektet...

  9. Den tidslogiske analyse af determinismeproblemet

    DEFF Research Database (Denmark)

    Øhrstrøm, Peter

    2010-01-01

    Artiklen diskuterer den filosofiske tidslogik med særligt henblik på A.N. Priors bidrag hertil. Det logiske determinismeproblem benyttes som gennemgående eksempel. Det vises endvidere, hvordan tidslogikken kan udnyttes til at analysere de logisk mulige positioner i en videnskabelig eller videnska...... videnskabsteoretisk debat. Her bruges den videnskabshistorisk betydende diskussion mellem Charles Darwin og Asa Gray som eksempel....

  10. Speciation and extinction drive the appearance of directional range size evolution in phylogenies and the fossil record.

    Directory of Open Access Journals (Sweden)

    Alex L Pigot

    Full Text Available While the geographic range of a species is a fundamental unit of macroecology and a leading predictor of extinction risk, the evolutionary dynamics of species' ranges remain poorly understood. Based on statistical associations between range size and species age, many studies have claimed support for general models of range evolution in which the area occupied by a species varies predictably over the course of its life. Such claims have been made using both paleontological data and molecular estimates of the age of extant species. However, using a stochastic model, we show that the appearance of trends in range size with species' age can arise even when range sizes have evolved at random through time. This occurs because the samples of species used in existing studies are likely to be biased with respect to range size: for example, only those species that happened to have large or expanding ranges are likely to survive to the present, while extinct species will tend to be those whose ranges, by chance, declined through time. We compared the relationship between the age and range size of species arising under our stochastic model to those observed across 1,269 species of extant birds and mammals and 140 species of extinct Cenozoic marine mollusks. We find that the stochastic model is able to generate the full spectrum of empirical age-area relationships, implying that such trends cannot be simply interpreted as evidence for models of directional range size evolution. Our results therefore challenge the theory that species undergo predictable phases of geographic expansion and contraction through time.

  11. Speciation and Extinction Drive the Appearance of Directional Range Size Evolution in Phylogenies and the Fossil Record

    Science.gov (United States)

    Pigot, Alex L.; Owens, Ian P. F.; Orme, C. David L.

    2012-01-01

    While the geographic range of a species is a fundamental unit of macroecology and a leading predictor of extinction risk, the evolutionary dynamics of species' ranges remain poorly understood. Based on statistical associations between range size and species age, many studies have claimed support for general models of range evolution in which the area occupied by a species varies predictably over the course of its life. Such claims have been made using both paleontological data and molecular estimates of the age of extant species. However, using a stochastic model, we show that the appearance of trends in range size with species' age can arise even when range sizes have evolved at random through time. This occurs because the samples of species used in existing studies are likely to be biased with respect to range size: for example, only those species that happened to have large or expanding ranges are likely to survive to the present, while extinct species will tend to be those whose ranges, by chance, declined through time. We compared the relationship between the age and range size of species arising under our stochastic model to those observed across 1,269 species of extant birds and mammals and 140 species of extinct Cenozoic marine mollusks. We find that the stochastic model is able to generate the full spectrum of empirical age–area relationships, implying that such trends cannot be simply interpreted as evidence for models of directional range size evolution. Our results therefore challenge the theory that species undergo predictable phases of geographic expansion and contraction through time. PMID:22371689

  12. Den litterære blog

    DEFF Research Database (Denmark)

    Serup, Martin Glaz; Kromann, Thomas Hvid

    2012-01-01

    Hvad er en litterær blog og hvordan arbejder den som en aktiv del af den litterære offentlighed.......Hvad er en litterær blog og hvordan arbejder den som en aktiv del af den litterære offentlighed....

  13. Ny bog: Den farvede franske general

    DEFF Research Database (Denmark)

    Østergaard, Uffe

    2013-01-01

    Anmeldelse af: Tom Reiss: 'Den sorte greve. Napoleons rival og den virkelige greve af Monte Cristo', Informations Forlag, 517 s.......Anmeldelse af: Tom Reiss: 'Den sorte greve. Napoleons rival og den virkelige greve af Monte Cristo', Informations Forlag, 517 s....

  14. Researchers' choice of the number and range of levels in experiments affects the resultant variance-accounted-for effect size.

    Science.gov (United States)

    Okada, Kensuke; Hoshino, Takahiro

    2016-08-08

    In psychology, the reporting of variance-accounted-for effect size indices has been recommended and widely accepted through the movement away from null hypothesis significance testing. However, most researchers have paid insufficient attention to the fact that effect sizes depend on the choice of the number of levels and their ranges in experiments. Moreover, the functional form of how and how much this choice affects the resultant effect size has not thus far been studied. We show that the relationship between the population effect size and number and range of levels is given as an explicit function under reasonable assumptions. Counterintuitively, it is found that researchers may affect the resultant effect size to be either double or half simply by suitably choosing the number of levels and their ranges. Through a simulation study, we confirm that this relation also applies to sample effect size indices in much the same way. Therefore, the variance-accounted-for effect size would be substantially affected by the basic research design such as the number of levels. Simple cross-study comparisons and a meta-analysis of variance-accounted-for effect sizes would generally be irrational unless differences in research designs are explicitly considered.

  15. TRANSPORT OF GRAVELS WITH DIFFERENT RANGES OF GRAIN SIZES IN A STEEP CHANNEL

    Institute of Scientific and Technical Information of China (English)

    Jau-Yau LU; Chih-Chiang SU

    2005-01-01

    An understanding of the transport mechanism of gravel-bed rivers is very important for the river management and engineering works. The main objective of this study was to conduct a series of laboratory experiment in a steep flume to investigate the particle segregation and the transport rate of nonuniform gravel. Median sizes of 15 mm and 7.5 mm, and gradation coefficients of 1.5 and 2.0 were selected for the particle size distributions of nonuniform gravel. In addition to the 36 sets of data collected in this study, 635 sets of existing data for gravel with both nonuniform and nearly uniform sizes were analyzed. According to the results of the sieve analysis and the related theory, hiding functions for both particle size distributions of this study were derived. An attempt was made to develop an Einstein-type transport relationship for nonuniform gravel using dimensionless parameters with mean size as a representative particle size. A modified Schoklitsch-type sediment transport equation with a critical unit flow discharge was also developed to reasonably predict the transport rate of gravels. In addition, an artificial neural network (ANN) model with a back-propagation network (BPN) algorithm was also applied in this study.

  16. Home-range size and overlap within an introduced population of the Cuban Knight Anole, Anolis equestris (Squamata: Iguanidae

    Directory of Open Access Journals (Sweden)

    Paul M. Richards

    2011-07-01

    Full Text Available Many studies have investigated the spatial relationships of terrestrial lizards, but arboreal species remain poorly studiedbecause they are difficult to observe. The conventional view of home-range size and overlap among territorial, polygynous species of lizards is that: (1 male home ranges are larger than those of females; (2 male home ranges usually encompass, or substantiallyoverlap, those of several females; and (3 male home-range overlap varies but often is minimal, but female home ranges frequently overlap extensively. However, the paucity of pertinent studies makes it difficult to generalize these patterns to arboreal lizards. Weinvestigated home-range size and overlap in the arboreal Knight Anole, Anolis equestris, and compared our findings to published home-range data for 15 other species of Anolis. Using radiotelemetry and mark-recapture/resight techniques, we analyzed the home rangesof individuals from an introduced population of Knight Anoles in Miami, Florida. The home ranges of both sexes substantially overlapped those of the same- and different-sex individuals. In addition, male and female home ranges did not differ significantly, an unusual observation among lizard species. If one compares both male and female home ranges to those of other Anolis species, Knight Anoles have significantly larger home ranges, except for two species for which statistical comparisons were not possible. Our results suggest that home ranges and sex-specific spatial arrangements of canopy lizards may differ from those of more terrestrial species.

  17. Wind power systems of the MW range. Digital control of a double-fed asynchronous generator without position indicator; Windkraftanlagen fuer den Megawatt-Bereich. Teil 1. Digitale Steuerung eines doppelt gespeisten Asynchrongenerators ohne Lagegeber

    Energy Technology Data Exchange (ETDEWEB)

    Ehrenberg, J. [sci-worx GmbH, Braunschweig (Germany); Andresen, B.; Rebsdorf, A.V. [Vestas Wind Systems A/S (Denmark). R and D Dept.

    2001-09-04

    The marketing chances of wind power systems are getting better as fossil fuels are getting shorter. Vestas Wind Systems A/S relies on sci-worx GmbH for the development of control systems for their new generation of wind power plants. [German] Ausgeloest durch die Oelkrise und angesichts der begrenzten Ressourcen der fossilen Energietraeger begann man vor gut zehn Jahren, vermehrt ueber den moeglichen Einsatz von regenerativen Energiequellen zur Stromerzeugung nachzudenken. Vor allem der Windenergie kommt dabei eine grosse Bedeutung zu, weil sie mit relativ hohem Wirkungsgrad in elektrische Energie umgewandelt werden kann. Im Rahmen dieses Trends beauftragte die Vestas Wind Systems A/S, als Hersteller von Windkraftanlagen, die sci-worx GmbH mit der Entwicklung von Regelung und Steuergeraet fuer ihre neueste Anlagengeneration. (orig.)

  18. Der kommer den danske model

    DEFF Research Database (Denmark)

    Lundquist, Lita Sander; Gravier, Magali

    2016-01-01

    Alene en titel som »Humor i EU« er nok til at fremkalde smil og spørgsmål om, hvorvidt det virkelig kan være rigtigt. I den grad forekommer det som en selvmodsigelse, at der skulle findes humor i Europaparlamentet (EP).......Alene en titel som »Humor i EU« er nok til at fremkalde smil og spørgsmål om, hvorvidt det virkelig kan være rigtigt. I den grad forekommer det som en selvmodsigelse, at der skulle findes humor i Europaparlamentet (EP)....

  19. Flensborg den 24. maj 1943

    DEFF Research Database (Denmark)

    Thomsen, Merete Bo

    2014-01-01

    Et bombardement af Flensborg 19. maj 1943 kostede mange ofre på både tysk og dansk side. Artiklen sammenligner det danske mindretals begravelsesceremoni med den nazistiske med særligt vægt på de forskellige indslags signalværdi over for det omgivende samfund.......Et bombardement af Flensborg 19. maj 1943 kostede mange ofre på både tysk og dansk side. Artiklen sammenligner det danske mindretals begravelsesceremoni med den nazistiske med særligt vægt på de forskellige indslags signalværdi over for det omgivende samfund....

  20. Hominin geographical range dynamics and relative brain size: Do non-human primates provide a good analogy?

    Science.gov (United States)

    MacDonald, Katharine; Smaers, Jeroen B; Steele, James

    2015-10-01

    We use climatic and satellite remote sensing data to characterize environmental seasonality in the geographical ranges of extant non-human primates in order to assess the effect of relative brain size on tolerance of more seasonal habitats. Demonstration of such an effect in living non-human primates could provide a comparative framework for modeling hominin dispersals and geographical range dynamics in the Pliocene and Pleistocene. Our analyses found no such effect: there are neither positive nor negative correlations between relative brain size and either geographical range size or the average and range of values for environmental seasonality, whether analysed at the level of all primates, or within parvorders (strepsirrhine, catarrhine, platyrrhine). Independent analyses by other researchers comparing feeding behaviour and ecology at individual primate study sites demonstrate that in seasonal environments, the year-round metabolic costs of maintaining a relatively large brain are met by adaptive behavioural/dietary strategies. However, consistent with our own results, those comparative studies found that there was no overall association, whether positive or negative, between 'raw' environmental seasonality and primate relative brain size. We must therefore look elsewhere for a comparative model of hominin geographical range dynamics in the Pleistocene.

  1. Invasiveness of plants is predicted by size and fecundity in the native range

    DEFF Research Database (Denmark)

    Jelbert, Kim; Stott, Iain; Mcdonald, Robbie A.;

    2015-01-01

    An important goal for invasive species research is to find key traits of species that predispose them to being invasive outside their native range. Comparative studies have revealed phenotypic and demographic traits that correlate with invasiveness among plants. However, all but a few previous st...

  2. Changes in lion (Panthera leo) home range size in Waza National Park, Cameroon

    NARCIS (Netherlands)

    Tumenta, P.N.; Van't Zelfde, M.; Croes, B.M.; Buij, R.; Funston, P.J.; Haes, de H.A.U.; longh, De H.H.

    2013-01-01

    The spatial ecology of Africa lions (Panthera leo) was studied from 2007 to 2009 in Waza National Park, Cameroon, by equipping individual lions with GPS/VHF radio-collars. Mean home range estimates using 100% minimum convex polygons (MCP) and 95% kernel-density estimation (KDE) were respectively

  3. Changes in lion (Panthera leo) home range size in Waza National Park, Cameroon

    NARCIS (Netherlands)

    Tumenta, P.N.; Van't Zelfde, M.; Croes, B.M.; Buij, R.; Funston, P.J.; Haes, de H.A.U.; longh, De H.H.

    2013-01-01

    The spatial ecology of Africa lions (Panthera leo) was studied from 2007 to 2009 in Waza National Park, Cameroon, by equipping individual lions with GPS/VHF radio-collars. Mean home range estimates using 100% minimum convex polygons (MCP) and 95% kernel-density estimation (KDE) were respectively 101

  4. Growth rate and maturation of skeletal muscles over a size range of galliform birds

    NARCIS (Netherlands)

    Dietz, MW; Ricklefs, RE; Ricklefs, Robert E.

    1997-01-01

    The relationship between growth rate and development of function in leg and pectoral muscles was studied in four species of galliform birds ranging from 125 g to 18 kg and, for comparison, in an altricial species, the European starling (80 g). An index to neonatal maturity (muscle dry content propor

  5. den og morderen

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    2014-01-01

    forskellige versioner af Forbrydelsen: DR's oprindelige udgave, AMC's udgave The Killing og David Hewsons roman Forbrydelsen, der er baseret på manuskriptet til DR-serien. Grundfortællingen under disse tre versioner relaterer jeg til H.C. Andersens "Historien om en Moder" og tilskrivningen af mening til døden....

  6. Udstillingen og den gode historie

    DEFF Research Database (Denmark)

    Dickson, Thomas

    1998-01-01

    Artiklen indledes med: af de mange kommunikaationsformaer der findes er 'udstillingen' blandt de mest levende og realistiske. Udstillingsmediet giver publikum mulighed for at opleve 'the real thing' og ikke bare en eller anden form for todimensionel reproduktion. Men den traditionelle udstilling ...

  7. Tillid i den finansielle sektor

    DEFF Research Database (Denmark)

    Rimmer, Nina Røhr; Nielsen, Sara Møller; Benediktsdottir, Elisabet

    2014-01-01

    , der er i kommunikation med kunden, eksempelvis at videreudvikle på definerede Touch-Points i CEM og opbyggelsen/vedligeholdelsen af kundeoplysninger i CRM systemer således, at den samlede kvalitet af ydelsen bliver så personlig som mulig, hvilket falder godt i tråd med Spar Nords værdigrundlag om dels...

  8. On the extent of size range and power law scaling for particles of natural carbonate fault cores

    Science.gov (United States)

    Billi, Andrea

    2007-09-01

    To determine the size range and both type and extent of the scaling laws for particles of loose natural carbonate fault rocks, six granular fault cores from Mesozoic carbonate strata of central Italy were sampled. Particle size distributions of twelve samples were determined by combining sieving and sedimentation methods. Results show that, regardless of the fault geometry, kinematics, and tectonic history, the size of fault rock particles respects a power law distribution across approximately four orders of magnitude. The fractal dimension ( D) of the particle size distribution in the analysed samples ranges between ˜2.0 and ˜3.5. A lower bound to the power law trend is evident in all samples except in those with the highest D-values; in these samples, the smallest analysed particles (˜0.0005 mm in diameter) were also included in the power law interval, meaning that the lower size limit of the power law distribution decreases for increasing D-values and that smallest particles start to be comminuted with increasing strain (i.e. increasing fault displacement and D-values). For increasing D-values, also the largest particles tends to decrease in number, but this evidence may be affected by a censoring bias connected with the sample size. Stick-slip behaviour is suggested for the studied faults on the basis of the inferred particle size evolutions. Although further analyses are necessary to make the results of this study more generalizable, the preliminary definition of the scaling rules for fault rock particles may serve as a tool for predicting a large scale of fault rock particles once a limited range is known. In particular, data from this study may result useful as input numbers in numerical models addressing the packing of fault rock particles for frictional and hydraulic purposes.

  9. Ion generation and CPC detection efficiency studies in sub 3-nm size range

    Energy Technology Data Exchange (ETDEWEB)

    Kangasluoma, J.; Junninen, H.; Sipilae, M.; Kulmala, M.; Petaejae, T. [Department of Physics, P.O. Box 64, 00014, University of Helsinki, Helsinki (Finland); Lehtipalo, K. [Department of Physics, P.O. Box 64, 00014, University of Helsinki, Helsinki (Finland); Airmodus Ltd., Finland, Gustaf Haellstroemin katu 2 A, 00560 Helsinki (Finland); Mikkilae, J.; Vanhanen, J. [Airmodus Ltd., Finland, Gustaf Haellstroemin katu 2 A, 00560 Helsinki (Finland); Attoui, M. [University Paris Est Creteil, University Paris-Diderot, LISA, UMR CNRS 7583 (France); Worsnop, D. [Department of Physics, P.O. Box 64, 00014, University of Helsinki, Helsinki (Finland) and Aerodyne Research Inc., Billerica, MA (United States)

    2013-05-24

    We studied the chemical composition of commonly used condensation particle counter calibration ions with a mass spectrometer and found that in our calibration setup the negatively charged ammonium sulphate, sodium chloride and tungsten oxide are the least contaminated whereas silver on both positive and negative and the three mentioned earlier in positive mode are contaminated with organics. We report cut-off diameters for Airmodus Particle Size Magnifier (PSM) 1.1, 1.3, 1.4, 1.6 and 1.6-1.8 nm for negative sodium chloride, ammonium sulphate, tungsten oxide, silver and positive organics, respectively. To study the effect of sample relative humidity on detection efficiency of the PSM we used different humidities in the differential mobility analyzer sheath flow and found that with increasing relative humidity also the detection efficiency of the PSM increases.

  10. Dens in dente of maxillary third molar

    Directory of Open Access Journals (Sweden)

    Subramaniam Arun

    2008-01-01

    Full Text Available ′Dens in dente,′ also known as dens invaginatus, is a developmental anomaly resulting from deepening or invagination of the enamel organ into the dental papilla, which begins at the crown and often extends to the root before calcification of the dental tissues. Dens in dente commonly occur in the maxillary lateral incisor. This article reports a case of dens in dente in the maxillary third molar.

  11. Size effect on high temperature variable range hopping in Al+ implanted 4H-SiC

    Science.gov (United States)

    Parisini, Antonella; Parisini, Andrea; Nipoti, Roberta

    2017-01-01

    The hole transport properties of heavily doped 4H-SiC (Al) layers with Al implanted concentrations of 3  ×  1020 and 5  ×  1020 cm-3 and annealed in the temperature range 1950-2100 °C, have been analyzed to determine the main transport mechanisms. This study shows that the temperature dependence of the resistivity (conductivity) may be accounted for by a variable range hopping (VRH) transport into an impurity band. Depending on the concentration of the implanted impurities and the post-implantation annealing treatment, this VRH mechanism persists over different temperature ranges that may extend up to room temperature. In this framework, two different transport regimes are identified, having the characteristic of an isotropic 3D VRH and an anisotropic nearly 2D VRH. The latter conduction mechanism appears to take place in a rather thick layer (about 400 nm) that is too large to induce a confinement effect of the carrier hops. The possibility that an anisotropic transport may be induced by a structural modification of the implanted layer because of a high density of basal plane stacking faults (SF) in the implanted layers is considered. The interpretation of the conduction in the heaviest doped samples in terms of nearly 2D VRH is supported by the results of the transmission electron microscopy (TEM) investigation on one of the 5  ×  1020 cm-3 Al implanted samples of this study. In this context, the average separation between basal plane SFs, measured along the c-axis, which is orthogonal to the carrier transport during electrical characterization, appears to be in keeping with the estimated value of the optimal hopping length of the VRH theory. Conversely, no SFs are detected by TEM in a sample with an Al concentration of 1  ×  1019 cm-3 where a 3D nearest neighbor hopping (NNH) transport is observed.

  12. Eigenvectors and scalar products for long range interacting spin chains II: the finite size effects

    CERN Document Server

    Serban, D

    2013-01-01

    In this note, we study the eigenvectors and the scalar products the integrable long-range deformation of a XXX spin chain which is solved exactly by algebraic Bethe ansatz, and it coincides in the bulk with the Inozemtsev spin chain. At the closing point it contains a defect which effectively removes the wrapping interactions. Here we concentrate on determining the defect term for the first non-trivial order in perturbation in the deformation parameter and how it affects the Bethe ansatz equations. Our study is motivated by the relation with the dilatation operator of the N = 4 gauge theory in the su(2) sector.

  13. Vi kan bryde den negative kulturelle arv

    DEFF Research Database (Denmark)

    Pecseli, Benedicta

    2014-01-01

    Den ny bekendtgørelse for pædagoguddannelsen fokuserer på brydning af den negative sociale arv, men det som inklusionspædagogikken skal inkludere til, eller den horisont inden for hvilken alle børn skal gives lige livschance/mulighed, er der næsten ingen redegørelse for. Begreber som Kultur og...

  14. den på glas

    DEFF Research Database (Denmark)

    Meyer, Ion

    2008-01-01

    Artiklen beskriver den eneste danske samling af præparerede fostre og børn, og hvorfor den blev fremstillet. Den var en del af Museum Saxtorphianum og artiklen diskuterer hvordan disse fostre blev til præparater. Musealiseringen, overgangen fra medicinske studieobjekter til museumsgenstande med s...

  15. Body size, growth and life span: implications for the polewards range shift of Octopus tetricus in south-eastern Australia.

    Directory of Open Access Journals (Sweden)

    Jorge E Ramos

    Full Text Available Understanding the response of any species to climate change can be challenging. However, in short-lived species the faster turnover of generations may facilitate the examination of responses associated with longer-term environmental change. Octopus tetricus, a commercially important species, has undergone a recent polewards range shift in the coastal waters of south-eastern Australia, thought to be associated with the southerly extension of the warm East Australian Current. At the cooler temperatures of a polewards distribution limit, growth of a species could be slower, potentially leading to a bigger body size and resulting in a slower population turnover, affecting population viability at the extreme of the distribution. Growth rates, body size, and life span of O. tetricus were examined at the leading edge of a polewards range shift in Tasmanian waters (40°S and 147°E throughout 2011. Octopus tetricus had a relatively small body size and short lifespan of approximately 11 months that, despite cooler temperatures, would allow a high rate of population turnover and may facilitate the population increase necessary for successful establishment in the new extended area of the range. Temperature, food availability and gender appear to influence growth rate. Individuals that hatched during cooler and more productive conditions, but grew during warming conditions, exhibited faster growth rates and reached smaller body sizes than individuals that hatched into warmer waters but grew during cooling conditions. This study suggests that fast growth, small body size and associated rapid population turnover may facilitate the range shift of O. tetricus into Tasmanian waters.

  16. Body size, growth and life span: implications for the polewards range shift of Octopus tetricus in south-eastern Australia.

    Science.gov (United States)

    Ramos, Jorge E; Pecl, Gretta T; Moltschaniwskyj, Natalie A; Strugnell, Jan M; León, Rafael I; Semmens, Jayson M

    2014-01-01

    Understanding the response of any species to climate change can be challenging. However, in short-lived species the faster turnover of generations may facilitate the examination of responses associated with longer-term environmental change. Octopus tetricus, a commercially important species, has undergone a recent polewards range shift in the coastal waters of south-eastern Australia, thought to be associated with the southerly extension of the warm East Australian Current. At the cooler temperatures of a polewards distribution limit, growth of a species could be slower, potentially leading to a bigger body size and resulting in a slower population turnover, affecting population viability at the extreme of the distribution. Growth rates, body size, and life span of O. tetricus were examined at the leading edge of a polewards range shift in Tasmanian waters (40°S and 147°E) throughout 2011. Octopus tetricus had a relatively small body size and short lifespan of approximately 11 months that, despite cooler temperatures, would allow a high rate of population turnover and may facilitate the population increase necessary for successful establishment in the new extended area of the range. Temperature, food availability and gender appear to influence growth rate. Individuals that hatched during cooler and more productive conditions, but grew during warming conditions, exhibited faster growth rates and reached smaller body sizes than individuals that hatched into warmer waters but grew during cooling conditions. This study suggests that fast growth, small body size and associated rapid population turnover may facilitate the range shift of O. tetricus into Tasmanian waters.

  17. Seasonal and daily patterns of group size, cohesion and activity of the estuarine dolphin, Sotalia guianensis (P.J. van Bénéden (Cetacea, Delphinidae, in southern Brazil Padrões sazonais e diários do tamanho de grupo, coesão e atividade do boto-cinza, Sotalia guianensis (P.J. van Bénéden (Cetacea, Delphinidae, no sul do Brasil

    Directory of Open Access Journals (Sweden)

    Fábio G. Daura-Jorge

    2005-12-01

    Full Text Available The resident population of estuarine dolphin, Sotalia guianensis (P.J. van Bénéden, 1864, in Norte Bay, Santa Catarina, southern Brazil, was studied from 2000 to 2003. Systematic one-day cruises were undertaken aboard a 5 m sail boat equipped with an outboard motor. Applying the focal-group method, information such as geographical position, predominant behavioural patterns, group size, cohesion index and the presence of calves, were registered at every five-minute interval, totalling 198 hours of direct observation of the dolphins. The estuarine dolphin used preferential areas for each behavioural pattern. The mean group size was approximately 29 individuals, and the presence of calves occurred throughout the entire year, but with a significant increase in the warm seasons. The frequency of behavioural patterns and group size varied according to season and time of day, and were strongly associated. The frequency of moving behaviours increased in the cold seasons and along the day. The seasonal variation in the moving behaviours suggest the requirement of a larger area in the cold seasons, probably related to seasonal fluctuations in the abundance of dominant prey items. Higher group sizes were observed while dolphins were foraging. The cohesion index also varied according to the behaviour. Our results showed that group organization and behavioural patterns of this estuarine dolphin population are probably linked to daily and seasonal environment cycles, and also possibly to the condition of being at the furthest southern limit of distribution of the species.A população residente de boto-cinza, Sotalia guianensis (P.J. van Bénéden, 1864, da Baía Norte, Santa Catarina, sul do Brasil, foi estudada de 2000 a 2003. Foram realizados cruzeiros sistemáticos de um dia, a bordo de um veleiro de 5 m equipado com motor de popa. Utilizando o método de grupo-focal, informações como posição geográfica, padrão comportamental predominante, tamanho

  18. Da den moderne jazz kom til Danmark

    DEFF Research Database (Denmark)

    Høyer, Ole Izard; Nielsen, Anders H.U.

    som tog over, deriblandt Erik Moseholm, Bent Axen og Jørn Elniff. Denne bog forklarer, hvordan den moderne jazz kom til Danmark, og hvordan den udviklede det danske jazzmiljø. Den inddrager faktorer som udenlandske musikeres besøg, koncerter og efterfølgende jazzsessions. Hvilken betydning havde disse...... for den danske jazzudvikling? Hvor blev musikken spillet, og hvordan blev den behandlet af medierne og af samfundet? Sammen med beskrivelser af de vigtigste moderne jazzmusikere fra perioden, analyseres og beskrives en række indspilninger af moderne dansk jazz for at undersøge hvornår, og hvilke af de nye...

  19. Da den moderne jazz kom til Danmark

    DEFF Research Database (Denmark)

    Høyer, Ole Izard; Nielsen, Anders H.U.

    som tog over, deriblandt Erik Moseholm, Bent Axen og Jørn Elniff. Denne bog forklarer, hvordan den moderne jazz kom til Danmark, og hvordan den udviklede det danske jazzmiljø. Den inddrager faktorer som udenlandske musikeres besøg, koncerter og efterfølgende jazzsessions. Hvilken betydning havde disse...... for den danske jazzudvikling? Hvor blev musikken spillet, og hvordan blev den behandlet af medierne og af samfundet? Sammen med beskrivelser af de vigtigste moderne jazzmusikere fra perioden, analyseres og beskrives en række indspilninger af moderne dansk jazz for at undersøge hvornår, og hvilke af de nye...

  20. Filmretorik og den internationale politik

    Directory of Open Access Journals (Sweden)

    Astrid Söderbergh Widding

    2005-09-01

    Full Text Available Med baggrund i de seneste års krigs- og terrorhandlinger – Afghanistan, Irak, den 11. september – reflekterer forfatteren over forholdet mellem krig, tilskuer, medier og forestillinger om virkeligheden. Forholdet mellem medier og virkelighed tenderer ifølge forfatteren mod at smelte sammen i en gennemmedieret kultur, hvor fremstillingsformer fra for eksempel film kan anvendes til at formidle faktiske begivenheder. Forfatterens blik på mediekulturen tager afsæt i flere aktuelle udgivelser fra postmodernis- mens centrale filosoffer, blandt andet Jean Baudrillard og Paul Virilio. Denne artikel er dermed samtidig en introduktion til deres refleksioner over terrorhandlingerne den 11. september og deres betydning i det moderne samfund.

  1. Filmretorik og den internationale politik

    Directory of Open Access Journals (Sweden)

    Astrid Söderbergh Widding

    2005-09-01

    Full Text Available Med baggrund i de seneste års krigs- og terrorhandlinger – Afghanistan, Irak, den 11. september – reflekterer forfatteren over forholdet mellem krig, tilskuer, medier og forestillinger om virkeligheden. Forholdet mellem medier og virkelighed tenderer ifølge forfatteren mod at smelte sammen i en gennemmedieret kultur, hvor fremstillingsformer fra for eksempel film kan anvendes til at formidle faktiske begivenheder. Forfatterens blik på mediekulturen tager afsæt i flere aktuelle udgivelser fra postmodernis- mens centrale filosoffer, blandt andet Jean Baudrillard og Paul Virilio. Denne artikel er dermed samtidig en introduktion til deres refleksioner over terrorhandlingerne den 11. september og deres betydning i det moderne samfund.

  2. Photographer : JPL Range : 4.2 million km. ( 2.6 million miles ) Jupiter's moon Europa, the size of

    Science.gov (United States)

    1979-01-01

    Photographer : JPL Range : 4.2 million km. ( 2.6 million miles ) Jupiter's moon Europa, the size of earth's moon, is apparently covered by water ice, as indicated by ground spectrometers and its brightness. In this view, global scale dark sreaks discovered by Voyager 1 that criss-cross the the satelite are becoming visible. Bright rayed impact craters, which are abundant on Ganymede and Callisto, would be easily visible at this range, suggesting that Europa's surface is young and that the streaks are reflections of currently active internal dynamic processes.

  3. Den sociale fantasilegs forandrende potentialer

    DEFF Research Database (Denmark)

    Winther-Lindqvist, Ditte Alexandra

    2014-01-01

    kapitlet argumenterer for en legebaseret pædagogisk tilgang og de voksnes vigtige rolle for børns leg i børnehaven. forskellige former for leg præsenteres og sammenhæng med førskolebarnets udvikling. den sociale fantasileg i børnehaven præsenteres ud fra analysen af en seksuelt overskridende leg ...

  4. Den sociale tillid i Danmark

    DEFF Research Database (Denmark)

    Anhøj, Anne Iversen; Kjærsgård, Andreas Pihl

    2013-01-01

    Nærværende artikel har anvendt de hidtil ubenyttede surveypaneldata, der eksisterer i Danmark til at undersøge udviklingen i social tillid på individniveau over tid. Artiklens analyser viser, at social tillid på individniveau i Danmark synes at være meget stabil, når først den er opnået. Herudover...

  5. Etikken i den maskerede by

    DEFF Research Database (Denmark)

    Liebst, Lasse Suonperä

    2009-01-01

    , at Knud E. Løgstrups fænomenologiske nærhedsetik – som Bauman fejlagtigtjævnfører med Levinas’ – tilbyder en interessant alternativ forståelse af forholdetimellem æstetik og etik: Ifølge Løgstrup har æstetikken nemlig forrang foretikken. Artiklens afgørende argument bliver i lyset heraf, at den etiske...

  6. Reformerne i den offentlige sektor

    DEFF Research Database (Denmark)

    Pedersen, John Storm

    Der er gennemført mere end 15 reformer i den offentlige sektor på få år. Disse analyseres i bogen med udgangspunkt i følgende tre spørgsmål. Reformernes konsekvenser for produktionen og leveringen af velfærdsydelserne til borgerne? Årsagen til og drivkraften bag reformerne? Reformernes krav til d...

  7. Optimizing battery sizes of plug-in hybrid and extended range electric vehicles for different user types

    OpenAIRE

    REDELBACH Martin; Özdemir, Enver Doruk; Friedrich, Horst E.

    2014-01-01

    There are ambitious greenhouse gas emissions (GHG) targets for the manufacturers of light duty vehicles. To reduce the GHG emissions, plug-in hybrid electric vehicle (PHEV) and extended range electric vehicle (EREV) are promising powertrain technologies. However, the battery is still a very critical component due to the high production cost and heavy weight. This paper introduces a holistic approach for the optimization of the battery size of PHEVs and EREVs under German market conditions. Th...

  8. Konsulenten i den anden nat

    DEFF Research Database (Denmark)

    Kirkegaard, Line

    for i sit deres liv og den eksistensmåde, der hermed muliggøres. Med dette ønsker jeg at bidrage til de eksisterende work-life balance teorier. Min vej ind i teorierne er nemlig, at logikken i mit empiriske materiale forekommer så forskelligt fra de traditionelle work-life balance teorier, at disse ikke...... lader sig forene. Jeg foretage derfor en analyse af den eksisterende litteratur, og rejser i den forbindelse en grundlæggende kritik af work-life balance teorierne, for at operere med falske problemstillinger på en måde, så svaret allerede indgår i de spørgsmål, der stilles. Jeg argumenterer således for......, at det problematiske forhold ved work-life balance teorierne allerede skal søges i konstitueringen af deres problematik, hvor arbejde og fritid indgår som to distinkte og kontrasterende sfærer. Ubalance eller problemer søges således altid i relationen her imellem. I forlængelse heraf argumenterer jeg for...

  9. Konsulenten i den anden nat

    DEFF Research Database (Denmark)

    Kirkegaard, Line

    for i sit deres liv og den eksistensmåde, der hermed muliggøres. Med dette ønsker jeg at bidrage til de eksisterende work-life balance teorier. Min vej ind i teorierne er nemlig, at logikken i mit empiriske materiale forekommer så forskelligt fra de traditionelle work-life balance teorier, at disse ikke...... lader sig forene. Jeg foretage derfor en analyse af den eksisterende litteratur, og rejser i den forbindelse en grundlæggende kritik af work-life balance teorierne, for at operere med falske problemstillinger på en måde, så svaret allerede indgår i de spørgsmål, der stilles. Jeg argumenterer således for......, at det problematiske forhold ved work-life balance teorierne allerede skal søges i konstitueringen af deres problematik, hvor arbejde og fritid indgår som to distinkte og kontrasterende sfærer. Ubalance eller problemer søges således altid i relationen her imellem. I forlængelse heraf argumenterer jeg for...

  10. Radicular Dens Invaginatus: Report of a Rare Case

    Directory of Open Access Journals (Sweden)

    V. T. Beena

    2012-01-01

    Full Text Available Dens invaginatus is a developmental anomaly resulting from invagination of a portion of crown forming within the enamel organ during odontogenesis. The invagination ranges from a slight pitting (coronal type to an anomaly occupying most of the crown and root (radicular type. Although a clinical examination may reveal a deep fissure or pit on the surface of an anterior tooth, radiographic examination is the most realistic way to diagnose the invagination. The objective of this case presentation is to report a rare case of radicular dens in dente, which is a rare dental anomaly.

  11. Particle size reduction to the nanometer range: a promising approach to improve buccal absorption of poorly water-soluble drugs

    Directory of Open Access Journals (Sweden)

    Rao S

    2011-06-01

    Full Text Available Shasha Rao, Yunmei Song, Frank Peddie, Allan M EvansSansom Institute for Health Research, Division of Health Sciences, University of South Australia, Adelaide, South Australia, AustraliaAbstract: Poorly water-soluble drugs, such as phenylephrine, offer challenging problems for buccal drug delivery. In order to overcome these problems, particle size reduction (to the nanometer range and cyclodextrin complexation were investigated for permeability enhancement. The apparent solubility in water and the buccal permeation of the original phenylephrine coarse powder, a phenylephrine–cyclodextrin complex and phenylephrine nanosuspensions were ­characterized. The particle size and particle surface properties of phenylephrine nanosuspensions were used to optimize the size reduction process. The optimized phenylephrine nanosuspension was then freeze dried and incorporated into a multi-layered buccal patch, consisting of a small tablet adhered to a mucoadhesive film, yielding a phenylephrine buccal product with good dosage accuracy and improved mucosal permeability. The design of the buccal patch allows for drug incorporation without the need to change the mucoadhesive component, and is potentially suited to a range of poorly water-soluble compounds.Keywords: buccal drug delivery, nanosuspension, solubility, permeation enhancement, mucoadhesion

  12. Feasibility Study of Interstellar Missions Using Laser Sail Probes Ranging in Size from the Nano to the Macro

    Science.gov (United States)

    Malroy, Eric T.

    2010-01-01

    This paper presents the analysis examining the feasibility of interstellar travel using laser sail probes ranging in size from the nano to the macro. The relativistic differential equations of motion for a laser sail are set up and solved using the Pasic Method. The limitations of the analysis are presented and discussed. The requirements for the laser system are examined, including the thermal analysis of the laser sails. Black holes, plasma fields, atmospheric collisions and sun light are several methods discussed to enable the deceleration of the interstellar probe. A number of novel mission scenarios are presented including the embryonic transport of plant life as a precursor to the arrival of space colonies

  13. Berlusconi og den moderne fyrste

    DEFF Research Database (Denmark)

    Sørensen, Gert

    Da Berlusconi dannede sin første regering tilbage i 1994, gav han indtryk af at repræsentere noget tiltrængt nyt, efter den gamle korruptionsramte politiske klasse havde måttet trække sig. Dette billede har ændret sig markant siden, men alligevel blev han valgt igen i 2001, hvor han dannede den...... anden Berlusconi-regering. Ved valget i 2006 var det lige ved at ske igen. Hvad har fået så mange italienere til at støtte Berlusconi? Og hvordan har han formået at fastholde denne støtte? Det er bl.a. disse spørgsmål, bogen prøver at give et svar på. Der er ikke tale om en traditionel biografi om...... Berlusconi. Interessen samler sig om Berlusconi som katalysator for nogle grundlæggende forandringer i italienernes politiske adfærd. Bogen skal ses som en slags tilstandsrapport over en aktuel tidsepoke med rødder tilbage i det Italien, der opstod i 1945 efter fascismens endelige sammenbrud. Bogens første...

  14. Free-ranging male koalas use size-related variation in formant frequencies to assess rival males.

    Directory of Open Access Journals (Sweden)

    Benjamin D Charlton

    Full Text Available Although the use of formant frequencies in nonhuman animal vocal communication systems has received considerable recent interest, only a few studies have examined the importance of these acoustic cues to body size during intra-sexual competition between males. Here we used playback experiments to present free-ranging male koalas with re-synthesised bellow vocalisations in which the formants were shifted to simulate either a large or a small adult male. We found that male looking responses did not differ according to the size variant condition played back. In contrast, male koalas produced longer bellows and spent more time bellowing when they were presented with playbacks simulating larger rivals. In addition, males were significantly slower to respond to this class of playback stimuli than they were to bellows simulating small males. Our results indicate that male koalas invest more effort into their vocal responses when they are presented with bellows that have lower formants indicative of larger rivals, but also show that males are slower to engage in vocal exchanges with larger males that represent more dangerous rivals. By demonstrating that male koalas use formants to assess rivals during the breeding season we have provided evidence that male-male competition constitutes an important selection pressure for broadcasting and attending to size-related formant information in this species. Further empirical studies should investigate the extent to which the use of formants during intra-sexual competition is widespread throughout mammals.

  15. Free-ranging male koalas use size-related variation in formant frequencies to assess rival males.

    Science.gov (United States)

    Charlton, Benjamin D; Whisson, Desley A; Reby, David

    2013-01-01

    Although the use of formant frequencies in nonhuman animal vocal communication systems has received considerable recent interest, only a few studies have examined the importance of these acoustic cues to body size during intra-sexual competition between males. Here we used playback experiments to present free-ranging male koalas with re-synthesised bellow vocalisations in which the formants were shifted to simulate either a large or a small adult male. We found that male looking responses did not differ according to the size variant condition played back. In contrast, male koalas produced longer bellows and spent more time bellowing when they were presented with playbacks simulating larger rivals. In addition, males were significantly slower to respond to this class of playback stimuli than they were to bellows simulating small males. Our results indicate that male koalas invest more effort into their vocal responses when they are presented with bellows that have lower formants indicative of larger rivals, but also show that males are slower to engage in vocal exchanges with larger males that represent more dangerous rivals. By demonstrating that male koalas use formants to assess rivals during the breeding season we have provided evidence that male-male competition constitutes an important selection pressure for broadcasting and attending to size-related formant information in this species. Further empirical studies should investigate the extent to which the use of formants during intra-sexual competition is widespread throughout mammals.

  16. Silage Collected from Dairy Farms Harbors an Abundance of Listeriaphages with Considerable Host Range and Genome Size Diversity

    Science.gov (United States)

    Vongkamjan, Kitiya; Switt, Andrea Moreno; den Bakker, Henk C.; Fortes, Esther D.

    2012-01-01

    Since the food-borne pathogen Listeria monocytogenes is common in dairy farm environments, it is likely that phages infecting this bacterium (“listeriaphages”) are abundant on dairy farms. To better understand the ecology and diversity of listeriaphages on dairy farms and to develop a diverse phage collection for further studies, silage samples collected on two dairy farms were screened for L. monocytogenes and listeriaphages. While only 4.5% of silage samples tested positive for L. monocytogenes, 47.8% of samples were positive for listeriaphages, containing up to >1.5 × 104 PFU/g. Host range characterization of the 114 phage isolates obtained, with a reference set of 13 L. monocytogenes strains representing the nine major serotypes and four lineages, revealed considerable host range diversity; phage isolates were classified into nine lysis groups. While one serotype 3c strain was not lysed by any phage isolates, serotype 4 strains were highly susceptible to phages and were lysed by 63.2 to 88.6% of phages tested. Overall, 12.3% of phage isolates showed a narrow host range (lysing 1 to 5 strains), while 28.9% of phages represented broad host range (lysing ≥11 strains). Genome sizes of the phage isolates were estimated to range from approximately 26 to 140 kb. The extensive host range and genomic diversity of phages observed here suggest an important role of phages in the ecology of L. monocytogenes on dairy farms. In addition, the phage collection developed here has the potential to facilitate further development of phage-based biocontrol strategies (e.g., in silage) and other phage-based tools. PMID:23042180

  17. Processing and size range separation of pristine and magnetic poly(l-lactic acid) based microspheres for biomedical applications.

    Science.gov (United States)

    Correia, D M; Sencadas, V; Ribeiro, C; Martins, P M; Martins, P; Gama, F M; Botelho, G; Lanceros-Méndez, S

    2016-08-15

    Biodegradable poly(l-lactic acid) (PLLA) and PLLA/CoFe2O4 magnetic microspheres with average sizes ranging between 0.16-3.9μm and 0.8-2.2μm, respectively, were obtained by an oil-in-water emulsion method using poly(vinyl alcohol) (PVA) solution as the emulsifier agent. The separation of the microspheres in different size ranges was then performed by centrifugation and the colloidal stability assessed at different pH values. Neat PLLA spheres are more stable in alkaline environments when compared to magnetic microspheres, both types being stable for pHs higher than 4, resulting in a colloidal suspension. On the other hand, in acidic environments the microspheres tend to form aggregates. The neat PLLA microspheres show a degree of crystallinity of 40% whereas the composite ones are nearly amorphous (17%). Finally, the biocompatibility was assessed by cell viability studies with MC3T3-E1 pre-osteoblast cells.

  18. Experimental validation of the intrinsic spatial efficiency method over a wide range of sizes for cylindrical sources

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz-Ramŕez, Pablo, E-mail: rapeitor@ug.uchile.cl; Larroquette, Philippe [Departamento de Física, Facultad de Ciencias, Universidad de Chile (Chile); Camilla, S. [Departamento de Física, Universidad Tecnológica Metropolitana (Chile)

    2016-07-07

    The intrinsic spatial efficiency method is a new absolute method to determine the efficiency of a gamma spectroscopy system for any extended source. In the original work the method was experimentally demonstrated and validated for homogeneous cylindrical sources containing {sup 137}Cs, whose sizes varied over a small range (29.5 mm radius and 15.0 to 25.9 mm height). In this work we present an extension of the validation over a wide range of sizes. The dimensions of the cylindrical sources vary between 10 to 40 mm height and 8 to 30 mm radius. The cylindrical sources were prepared using the reference material IAEA-372, which had a specific activity of 11320 Bq/kg at july 2006. The obtained results were better for the sources with 29 mm radius showing relative bias lesser than 5% and for the sources with 10 mm height showing relative bias lesser than 6%. In comparison with the obtained results in the work where we present the method, the majority of these results show an excellent agreement.

  19. Die grossen Physiker und ihre Entdeckungen von den fallenden Körpern zu den Quarks

    CERN Document Server

    Segrè, Emilio

    1998-01-01

    Von Galileo Galilei bis zu Richard Feynman und Murray Gell-Mann - von den fallenden Körpern zu den Quarks: Der Physiknobelpreisträger Emilio Segre hat seine ganz persönliche Geschichte der Physik geschrieben. Er erzählt von den großen Gestalten und deren wichtigen Entdeckungen mit großer Anschaulichkeit und Lebendigkeit.

  20. Forever Young - den norske tv-serie Skam

    DEFF Research Database (Denmark)

    Jerslev, Anne

    2016-01-01

    Hvorfor er det lige, at den norske netbaserede ungdomsserie "Skam" er på alles læber for tiden? Svaret er simpelt: Den er nyskabende og supergod, og den taler til en langt bredere målgruppe end den gruppe af teenagepiger, den er rettet mod....

  1. A QVGA-size CMOS time-of-flight range image sensor with background light charge draining structure

    Science.gov (United States)

    Ushinaga, Takeo; Halin, Izhal Abdul; Sawada, Tomonari; Kawahito, Shoji; Homma, Mitsuru; Maeda, Yasunari

    2006-02-01

    3-D imaging systems can be used in a variety of applications such as in automobile, medicine, robot vision systems, security and so on. Recently many kinds of range finding methods have been proposed for 3-D imaging systems. This paper presents a new type of CMOS range image sensor based on the Time-of-Flight (TOF)principle with a spatial resolution of 336 × 252 (QVGA) and pixels of 15 × 15 μm2 size. A pixel structure of the sensor consists of single layer polysilicon gates on thick field oxide and has a function of background light induced charge reduction. The chip was fabricated in a 0.35 μm standard CMOS process with two poly and three metal layers. The presented sensor achieves a minimum range resolution of 2.8cm at framerate of 30fps and the resolution is improved to 4.2mm for 10 frames averaging, which corresponds to 3fps.

  2. Kaolin gegen den Gemeinen Birnenblattsauger C. pyri

    OpenAIRE

    Daniel, Claudia; Wyss, Eric

    2005-01-01

    Durch Vorblüteapplikationen mit Kaolin kann der Gemeine Birnenblattsauger das ganze Jahr unter der Schadensschwelle gehalten werden.Da Kaolin für nützliche Insekten nicht toxisch ist und eine vergleichbar gute Wirkung wie die herkömmlichen Insektizide hat, stellt es eine Alternative für den integrierten und den ökologischen Anbau dar.

  3. Den filosofiske præstation

    DEFF Research Database (Denmark)

    Skytte Gørtz, Kim Erik

    Bogen gør op med forestillingen om, at filosoffen er uanvendelig i erhvervslivet. Den udfolder en erhvervsfilosofi og inddrager filosoffer som Kant, Hegel, Kierkegaard, Nietzsche, Heidegger og Deleuze......Bogen gør op med forestillingen om, at filosoffen er uanvendelig i erhvervslivet. Den udfolder en erhvervsfilosofi og inddrager filosoffer som Kant, Hegel, Kierkegaard, Nietzsche, Heidegger og Deleuze...

  4. Normer, holdninger og den individualistiske fejlslutning

    DEFF Research Database (Denmark)

    Harder, Peter

    2012-01-01

    Normer er blevet manet ud af lingvistikken i to omgange inden for de sidste hundrede år: Første gang i forbindelse med den strukturalistiske revolution og anden gang i forbindelse med den postmoderne udvikling i variationslingvistikken. Begge gange er normer blevet anskuet som modsætningen til...

  5. Luftstaub über den Meeren

    DEFF Research Database (Denmark)

    Kacunko, Slavko; Kacunko, Sabine; Gorbushina, Ana

    2013-01-01

    Staub umgibt uns überall und alles wird auch irgendwann zu Staub - ob wir wollen oder nicht. Staub nicht nur zu bekämpfen, sondern zu untersuchen, bildet den Ausgangspunkt zahlreicher Forschungen in den Natur-, Ingenieur- und Kulturwissenschaften. Der vorliegende Band verbindet solche Beiträge au...

  6. Den barokke lov i Kafkas "Processen"

    DEFF Research Database (Denmark)

    Simonsen, Karen-Margrethe

    2011-01-01

    Artiklen diskuterer barokke aspekter af loven hos Kafka, idet den inddrager erkendelser fra den historiske barok, blandt andet dobbeltheden af labyrintisk ornamentik og vertikal magt, og inddrager diskussioner af hhv. Gilles Deleuzes, Jacques Derridas og Tzvetan Todorovs læsninger af Kafka....

  7. Lederens rolle i den innovative praksis

    DEFF Research Database (Denmark)

    Voxted, Søren; Kristensen, Catharina Juul

    Rapporten er afrapportering af forskningsprojektet 'Lederens rolle i den innovative praksis'. Gennem 12 måneder fulgte de tre forfattere ledere syv ledere forskellige steder i den offentlige sektor for at se, hvordan de gennem innovation håndtere de forandringskrav deres respektive organisationer...

  8. koncernbegrebet og tilbudspligtens indtræden

    DEFF Research Database (Denmark)

    Clausen, Nis Jul; sørensen, karsten engsig

    2010-01-01

      Med den nye selskabslov og de hertil knyttede ændringer i værdipapirhandelslovens regler om tilbudspligt har man fastholdt ønsket om parallelitet mellem det selskabsretlige koncernbegreb og kriterierne for tilbudspligtens indtræden. Det drøftes, om koncernbegrebet reelt er overført til tilbudsp...

  9. Den lange vej mod 9. april

    DEFF Research Database (Denmark)

    Clemmesen, Michael Hesselholt

    resultat af en pludselig indskydelse, men den logiske kulmination af årtiers udvikling, hvor Tysklands flåde febrilsk havde søgt veje til at yde et effektivt bidrag til sejren. Også den britiske minering af norsk farvand, der blev gennemført samtidig med at de tyske transporter nærmede sig norske kystbyer...

  10. Jagten på den kloge globaliseringsstrategi

    DEFF Research Database (Denmark)

    Mehlsen, Camilla

    2004-01-01

    Den kloge globaliseringsstrategi har fået et navn: Livslang læring. Men er strategien klog, når den fører til et polariseret arbejdsmarked? Og hvem skal betale for at dygtiggøre folk gennem hele livet? Asterisk har talt med professor Andy Green fra University of London. Udgivelsesdato: December...

  11. Planer for den andens liv II

    DEFF Research Database (Denmark)

    Breumlund, Anne; Hansen, Inger Bruun

    Undersøgelsen viser, hvordan den socialpædagogiske indsats på botilbuddet Højskolebakken skaber forandringer i hveragslivet for en gruppe unge med autisme, som har tillægsdiagnoser, udfordrende adfærd, misbrug eller har udøvet kriminalitet. Anden rapport fra forskningsprojektet: "Den pædagogiske og...

  12. Den barokke lov i Kafkas "Processen"

    DEFF Research Database (Denmark)

    Simonsen, Karen-Margrethe

    2011-01-01

    Artiklen diskuterer barokke aspekter af loven hos Kafka, idet den inddrager erkendelser fra den historiske barok, blandt andet dobbeltheden af labyrintisk ornamentik og vertikal magt, og inddrager diskussioner af hhv. Gilles Deleuzes, Jacques Derridas og Tzvetan Todorovs læsninger af Kafka....

  13. Den positive psykologis videnskabsteori og metode

    DEFF Research Database (Denmark)

    Andersen, Frans Ørsted; Vogel, Jenny

    2010-01-01

    På basis af interview med professor Michael Eid fra Freie Universität i Berlin gives en introduktion til emnet, Den positive psykologis videnskabsteori og metode......På basis af interview med professor Michael Eid fra Freie Universität i Berlin gives en introduktion til emnet, Den positive psykologis videnskabsteori og metode...

  14. Den gode facilitator af refleksionsarbejde

    DEFF Research Database (Denmark)

    Jørgensen, Pia

    2009-01-01

    tværfaglig lektorgruppe fra social og sundhedssektoren.’Learning by doing’, selvevaluering og sparring følger herefter som bud på, hvordan man kan leve op til de tilsyneladende ret utopiske krav til en god facilitator. At kunne skabe det tillidsfulde refleksionsrum og at kunne stille gode...... præsenteres i det følgende afsnit, og forfatteren argumenterer for begrebet facilitator af refleksionsarbejde. Herefter udfoldes rollen som facilitator ifølge Ghay og Lillyman. De har fokus på positive praksisoplevelser og tillidsfulde relationer. Gillie Boltons teoretiske og praktiske referenceramme...... for facilitatorrollen beskrives herefter. Bolton beskriver refleksionsarbejde som en fysisk (ikke ren kognitiv), passioneret (ikke ren intellektuel) kontekstbunden kunstnerisk proces, som kræver flair, stil og intuition. I de følgende afsnit beskrives den gode facilitator af refleksionsarbejde detaljeret af en...

  15. The generation of diesel exhaust particle aerosols from a bulk source in an aerodynamic size range similar to atmospheric particles

    Directory of Open Access Journals (Sweden)

    Daniel J Cooney

    2008-08-01

    Full Text Available Daniel J Cooney1, Anthony J Hickey21Department of Biomedical Engineering; 2School of Pharmacy, University of North Carolina, Chapel Hill, NC, USAAbstract: The influence of diesel exhaust particles (DEP on the lungs and heart is currently a topic of great interest in inhalation toxicology. Epidemiological data and animal studies have implicated airborne particulate matter and DEP in increased morbidity and mortality due to a number of cardiopulmonary diseases including asthma, chronic obstructive pulmonary disorder, and lung cancer. The pathogeneses of these diseases are being studied using animal models and cell culture techniques. Real-time exposures to freshly combusted diesel fuel are complex and require significant infrastructure including engine operations, dilution air, and monitoring and control of gases. A method of generating DEP aerosols from a bulk source in an aerodynamic size range similar to atmospheric DEP would be a desirable and useful alternative. Metered dose inhaler technology was adopted to generate aerosols from suspensions of DEP in the propellant hydrofluoroalkane 134a. Inertial impaction data indicated that the particle size distributions of the generated aerosols were trimodal, with count median aerodynamic diameters less than 100 nm. Scanning electron microscopy of deposited particles showed tightly aggregated particles, as would be expected from an evaporative process. Chemical analysis indicated that there were no major changes in the mass proportion of 2 specific aromatic hydrocarbons (benzo[a]pyrene and benzo[k]fluoranthene in the particles resulting from the aerosolization process.Keywords: diesel exhaust particles, aerosol, inhalation toxicology

  16. Den kulturelle dimension af virksomhedens internationalisering

    DEFF Research Database (Denmark)

    Langhoff, Tine

    1994-01-01

    at udnytte muligheder i foranderlige og kulturelt set heterogene omgivelser, så de succe kan påvirke og tilpasse sig disse? (2): Hvorledes forsøger virksomheder at håndtere kulturel heterogenitet på deres eksportmarkeder? Undersøgelsen identificerer tre dimensioner i virksomheders strategifastlæggelse, der......Artiklen omhandler den kulturelle dimensions indvirkning på virksomhedens internationalisering og diskuterer mulige internationalisieringsstrategier for virksomheder, der konfronteres med kulturforskelle. Med udgangspunkt i en kritik af den hidtidige forskning på området, hvor det såkaldte psykiske...... er herved, at den kulturelle dimension påvirker virksomheden og dens fortsatte udvikling. En empirisk analyse i den danske fødevarebranche afdækker virksomheders interkulturelle kompetence ved hjælp af to spørgsmål: (1) Hvorledes formår virksomheder med begrænsede ressourcer til deres disposition...

  17. Source apportionment of wide range particle size spectra and black carbon collected at the airport of Venice (Italy)

    Science.gov (United States)

    Masiol, Mauro; Vu, Tuan V.; Beddows, David C. S.; Harrison, Roy M.

    2016-08-01

    Atmospheric particles are of high concern due to their toxic properties and effects on climate, and large airports are known as significant sources of particles. This study investigates the contribution of the Airport of Venice (Italy) to black carbon (BC), total particle number concentrations (PNC) and particle number size distributions (PNSD) over a large range (14 nm-20 μm). Continuous measurements were conducted between April and June 2014 at a site located 110 m from the main taxiway and 300 m from the runway. Results revealed no significantly elevated levels of BC and PNC, but exhibited characteristic diurnal profiles. PNSD were then analysed using both k-means cluster analysis and positive matrix factorization. Five clusters were extracted and identified as midday nucleation events, road traffic, aircraft, airport and nighttime pollution. Six factors were apportioned and identified as probable sources according to the size profiles, directional association, diurnal variation, road and airport traffic volumes and their relationships to micrometeorology and common air pollutants. Photochemical nucleation accounted for ∼44% of total number, followed by road + shipping traffic (26%). Airport-related emissions accounted for ∼20% of total PNC and showed a main mode at 80 nm and a second mode beyond the lower limit of the SMPS (pollution and local resuspension. An analysis of BC levels over different wind sectors revealed no especially significant contributions from specific directions associated with the main local sources, but a potentially significant role of diurnal dynamics of the mixing layer on BC levels. The approaches adopted in this study have identified and apportioned the main sources of particles and BC at an international airport located in area affected by a complex emission scenario. The results may underpin measures for improving local and regional air quality, and health impact assessment studies.

  18. Evaluation of size segregation of elemental carbon emission in Europe: influence on atmospheric long-range transportation

    Directory of Open Access Journals (Sweden)

    Y. Chen

    2015-11-01

    Full Text Available Elemental Carbon (EC has significant impact on human health and climate change. In order to evaluate the size segregation of EC emission and investigation of its influence on atmospheric transport processes in Europe, we used the fully coupled online Weather Research and Forecasting/Chemistry model (WRF-Chem at a resolution of 2 km focusing on a region in Germany, in conjunction with a high-resolution EC emission inventory. The ground meteorology conditions, vertical structure and wind pattern were well reproduced by the model. The simulations of particle number/mass size distributions were evaluated by observations taken at the central European background site Melpitz. The fine mode aerosol was reasonably well simulated, but the coarse mode was substantially overestimated by the model. We found that it was mainly due to the nearby point source plume emitting a high amount of EC in the coarse mode. The comparisons between simulated EC and Multi-angle Absorption Photometers (MAAP measurements at Melpitz, Leipzig-TROPOS and Bösel indicated that coarse mode EC (ECc emission in the nearby point sources might be overestimated by a factor of 2–10. The emission fraction of EC in coarse mode was overestimated by about 10–30 % for Russian and 5–10 % for Eastern Europe (e.g.: Poland and Belarus, respectively. This overestimation in ECc emission fraction makes EC particles having less opportunity to accumulate in the atmosphere and participate to the long range transport, due to the shorter lifetime of coarse mode aerosol. The deposition concept model showed that the transported EC mass from Warsaw and Moskva to Melpitz may be reduced by 25–35 and 25–55 % respectively, due to the overestimation of ECc emission fraction. This may partly explain the underestimation of EC concentrations for Germany under eastern wind pattern in some other modelling research.

  19. Evaluation of size segregation of elemental carbon emission in Europe: influence on atmospheric long-range transportation

    Science.gov (United States)

    Chen, Y.; Cheng, Y. F.; Nordmann, S.; Birmili, W.; Denier van der Gon, H. A. C.; Ma, N.; Wolke, R.; Wehner, B.; Sun, J.; Spindler, G.; Mu, Q.; Pöschl, U.; Su, H.; Wiedensohler, A.

    2015-11-01

    Elemental Carbon (EC) has significant impact on human health and climate change. In order to evaluate the size segregation of EC emission and investigation of its influence on atmospheric transport processes in Europe, we used the fully coupled online Weather Research and Forecasting/Chemistry model (WRF-Chem) at a resolution of 2 km focusing on a region in Germany, in conjunction with a high-resolution EC emission inventory. The ground meteorology conditions, vertical structure and wind pattern were well reproduced by the model. The simulations of particle number/mass size distributions were evaluated by observations taken at the central European background site Melpitz. The fine mode aerosol was reasonably well simulated, but the coarse mode was substantially overestimated by the model. We found that it was mainly due to the nearby point source plume emitting a high amount of EC in the coarse mode. The comparisons between simulated EC and Multi-angle Absorption Photometers (MAAP) measurements at Melpitz, Leipzig-TROPOS and Bösel indicated that coarse mode EC (ECc) emission in the nearby point sources might be overestimated by a factor of 2-10. The emission fraction of EC in coarse mode was overestimated by about 10-30 % for Russian and 5-10 % for Eastern Europe (e.g.: Poland and Belarus), respectively. This overestimation in ECc emission fraction makes EC particles having less opportunity to accumulate in the atmosphere and participate to the long range transport, due to the shorter lifetime of coarse mode aerosol. The deposition concept model showed that the transported EC mass from Warsaw and Moskva to Melpitz may be reduced by 25-35 and 25-55 % respectively, due to the overestimation of ECc emission fraction. This may partly explain the underestimation of EC concentrations for Germany under eastern wind pattern in some other modelling research.

  20. Den iscenesatte TV-virkelighed

    Directory of Open Access Journals (Sweden)

    Peter Harms Larsen

    1988-08-01

    Full Text Available Dansk TV-historie er der skrevet meget lidt af, og om udviklingen af de forskellige TV-genrer næsten intet. I denne artikel tegner Peter Harms Larden et rids af de seneste 20 års TV-udvikling, hvor der er blevet eks- perimenteret med forskellige hybridformer, som blander fiktion og fakta. Peter Harms Larsen bruger ordet "fiktion" som overbegreb for alle former for medieprodukter, hvor fiktions- og faktaelementer blandes sammen. Både de engelsk inspirerede dramatiserede dokumentarprogrammer (drama-dok og de amerikansk inspirerede dokumentariske dramaer (doku-drama er således faktion, og det er tillige eksperimenterne med at anvende rekonstruktioner i faktaprogrammer, med at bruge faktakoder i fiktionsprogrammer, med at "punke" fortæller-instansen og med at iscene- sætte virkeligheden i form af spontanspil eller som eksperimenter. Især anvendelsen af iscenesat virkelighed mener Peter Harms Larsen er et selvstændigt dansk bidrag til udviklingen af TV-faktionsgenren. Artiklen stammer fra et undervisningsmateriale, som anvendes i Danmarks Radios interne uddannelse. Konklusionerne i den sidste del har derfor et videre perspektiv end de eksempler, som er nævnt i første del. Hele materialet vil senere blive gjort tilgængeligt i bogform udgivet af Danmarks Radios Uddannelsescenter.

  1. Invasive alien plants in Croatia as a threat to biodiversity of South-Eastern Europe: distributional patterns and range size.

    Science.gov (United States)

    Nikolić, Toni; Mitić, Božena; Milašinović, Boris; Jelaska, Sven D

    2013-02-01

    During the analysis of alien and invasive flora of Europe, as a threat to biodiversity, data for Croatia were missing. The aim of our research was to analyse distributional patterns and range size of all invasive alien plants (64) for the state area (57,000 km(2)). They were detected on 49% of the state territory, averaging five taxa per 35 km(2). The greatest number of invasive plants (>30 per grid cell) was recorded in the major urban centres, increasing in the south-east direction and reflecting positive correlation with temperature and negative with altitude. The most endangered areas are in the Mediterranean region, especially on islands. The number of invasive plants increased with habitat diversity and almost 75% of all sites with invasive plants are located within a few habitats with direct anthropogenic influence. The results should provide a reliable regional and global basis for strategic planning regarding invasive alien plants management. Copyright © 2013 Académie des sciences. Published by Elsevier SAS. All rights reserved.

  2. Reform af reformen - den nye ellov

    DEFF Research Database (Denmark)

    Olsen, Ole Jess

    2005-01-01

    Konkurrence i dansk elforsyning blev i første omgang i 1999 kun gennemført halvhjertet. Den miljøvenlige energi blev holdt uden for og selskabsstrukturen låst fast. Det skabte problemer, som den nye lov fra 2004 har søgt at råde bod på.......Konkurrence i dansk elforsyning blev i første omgang i 1999 kun gennemført halvhjertet. Den miljøvenlige energi blev holdt uden for og selskabsstrukturen låst fast. Det skabte problemer, som den nye lov fra 2004 har søgt at råde bod på....

  3. Contemporary treatment of class II dens invaginatus.

    Science.gov (United States)

    Sathorn, C; Parashos, P

    2007-04-01

    To present the nonsurgical management of a tooth with class II dens invaginatus with an open apex utilizing contemporary techniques. Root canal treatment of teeth with complex root canal anatomy such as dens invaginatus can be problematic because infected pulpal tissues may remain in inaccessible areas of the canal system. The cleaning and debridement of such root canal systems are therefore challenging and may sometimes be considered impossible. An immature apical root-end development is another challenge in root canal treatment especially in controlling the apical extent of the filling material and achieving an apical seal. When difficulties in cleaning and filling combine, management options may include surgical intervention or extraction. This article reports the nonsurgical endodontic treatment of a case of an open apex and dens invaginatus utilizing the operating microscope, endodontic ultrasonic instruments and mineral trioxide aggregate. Teeth with class II dens evaginatus and an open apex may be managed successfully with contemporary nonsurgical materials and techniques.

  4. Offene Lizenzen in den Digitalen Geisteswissenschaften

    Directory of Open Access Journals (Sweden)

    Kirsten Süselbeck

    2015-07-01

    Full Text Available Bericht über die vom Münchner Zentrum für digitale Geisteswissenschaften organisierten Tagung „Offene Lizenzen in den Digitalen Geisteswissenschaften“ am 27. und 28. April 2015

  5. Rare associations of dens invaginatus and mesiodens.

    Science.gov (United States)

    Sannomiya, Eduardo Kazuo; Asaumi, Jun-ichi; Kishi, Kanji; Dalben, Gisele da Silva

    2007-08-01

    Dens invaginatus is a developmental variation resulting from an alteration in the normal growth pattern of the dental papilla. Synonyms of this disturbance include dens in dente, invaginated odontome, tooth inclusion, and dentoid in dente. Radiographically, it is observed as infolding of a radiopaque ribbon-like structure, with equal density as enamel, extending from the cingulum into the root canal and sometimes reaching the root apex, assigning the appearance of a small tooth within the coronal pulp cavity. This article presents 2 case reports. The first describes an 8-year-old girl with dens invaginatus in a mesiodens; the second report describes a 16-year-old boy presenting with 2 mesiodens, both associated with dens invaginatus.

  6. Motivation af den Kreative Sælger

    OpenAIRE

    Sørensen, Mikkel Vallentin; Floor, Jeppe Hjelmsted

    2012-01-01

    Projektet tager udgangspunkt i motivationen af danske sælgere. Med inspiration fra den positive psykologiske videnskab, udfordres eksisterende motivationsredskaber, med henblik på at motivere den enkelte medarbejder til at yde et bedre stykke arbejde for virksomheden. Daniel Pink, Bruno Frey og Frederick Herzberg danner det teoretiske grundlag for opgaven, og problemstillingen undersøges gennem en sammenholdelse af deres teorier med empirisk materiale i en fænomenologisk tilgang. Rapporten af...

  7. Planer for den andens liv I

    DEFF Research Database (Denmark)

    Breumlund, Anne; Hansen, Inger Bruun

    Undersøgelsen viser, hvordan den socialpædagogiske indsats på botilbuddet Højskolebakken må udvikles i mødet med en gruppe unge med autisme, som har tillægsdiagnoser, udfordrende adfærd, misbrug eller har udøvet kriminalitet. Første rapport fra forskningsprojektet: "Den pædagogiske og sociale...

  8. Hvorfor al den snak om etik?

    DEFF Research Database (Denmark)

    Hjort, Katrin

    2010-01-01

    Denne artikel handler om pædagogers professionsetik, og om hvordan pædagoger – som andre velfærdsprofessionelle inden for uddannelse, sundhed og socialt arbejde – i dag er spændt ud mellem på den ene side den klassiske velfærdsstats pligtetik, kravet om at give ”alt det bedste til alle”, og på de...

  9. At traversere den Andens fantasi eller at traversere fantasien om den Anden

    DEFF Research Database (Denmark)

    Hansen, Brian Benjamin

    2016-01-01

    Fantasier lærer os at begære, hedder det hos Lacan. De sætter os i kontakt med den Andens begær. Men kan man egentlig komme for tæt på den Anden? Hvad sker der, når man kommer for tæt på den Andens fantasier? Og hvad sker der, når man kommer for tæt på fantasien om den Anden? Disse og lignende...

  10. Detection of unlabeled particles in the low micrometer size range using light scattering and hydrodynamic 3D focusing in a microfluidic system

    DEFF Research Database (Denmark)

    Zhuang, Guisheng; Jensen, Thomas G.; Kutter, Jörg P.

    2012-01-01

    In this paper, we describe a microfluidic device composed of integrated microoptical elements and a two‐layer microchannel structure for highly sensitive light scattering detection of micro/submicrometer‐sized particles. In the two‐layer microfluidic system, a sample flow stream is first constrai...... of Reynolds numbers (0.5 micrometer size range by light scattering detection....

  11. Læring og den kulturhistoriske skole

    DEFF Research Database (Denmark)

    Broström, Stig

    2007-01-01

      Kapitlet søger at indkredse væsentlige sider ved den kulturhistoriske skoles læringsforståelse. Kapitlet rummer fire afsnit. Det første handler om forholdet mellem læring og udvikling, hvor jeg med afsæt i Vygotskys værker (1978, 1974) og med inspiration fra en række amerikanske Vygotsky......-forskere uddrager den grundlæggende forståelse af forholdet mellem læring og udvikling. Nemlig at læring og udvikling indgår i en dialektisk enhed og virker gensidigt ind på hinanden - dog således at læring kommer ført, den trækker udviklingen med sig og så at sige leder udviklingen. Vygotskys tese vedrørende...... forholdet mellem læring og udvikling, ligger efterfølgende til grund for konstruktionen af tre grundlæggende begreber, der (ifølge den amerikanske Vygotsky-forsker Anna Stetsenko, 1999) udgør Vygotskys og den kulturhistoriske skoles teoretiske læringslandskab: 1) interaktionen mellem barnet og den voksne...

  12. Information and redundancy in the burial folding code of globular proteins within a wide range of shapes and sizes.

    Science.gov (United States)

    Ferreira, Diogo C; van der Linden, Marx G; de Oliveira, Leandro C; Onuchic, José N; de Araújo, Antônio F Pereira

    2016-04-01

    Recent ab initio folding simulations for a limited number of small proteins have corroborated a previous suggestion that atomic burial information obtainable from sequence could be sufficient for tertiary structure determination when combined to sequence-independent geometrical constraints. Here, we use simulations parameterized by native burials to investigate the required amount of information in a diverse set of globular proteins comprising different structural classes and a wide size range. Burial information is provided by a potential term pushing each atom towards one among a small number L of equiprobable concentric layers. An upper bound for the required information is provided by the minimal number of layers L(min) still compatible with correct folding behavior. We obtain L(min) between 3 and 5 for seven small to medium proteins with 50 ≤ Nr ≤ 110 residues while for a larger protein with Nr = 141 we find that L ≥ 6 is required to maintain native stability. We additionally estimate the usable redundancy for a given L ≥ L(min) from the burial entropy associated to the largest folding-compatible fraction of "superfluous" atoms, for which the burial term can be turned off or target layers can be chosen randomly. The estimated redundancy for small proteins with L = 4 is close to 0.8. Our results are consistent with the above-average quality of burial predictions used in previous simulations and indicate that the fraction of approachable proteins could increase significantly with even a mild, plausible, improvement on sequence-dependent burial prediction or on sequence-independent constraints that augment the detectable redundancy during simulations.

  13. Body size and geographic range do not explain long term variation in fish populations: a Bayesian phylogenetic approach to testing assembly processes in stream fish assemblages.

    Directory of Open Access Journals (Sweden)

    Stephen J Jacquemin

    Full Text Available We combine evolutionary biology and community ecology to test whether two species traits, body size and geographic range, explain long term variation in local scale freshwater stream fish assemblages. Body size and geographic range are expected to influence several aspects of fish ecology, via relationships with niche breadth, dispersal, and abundance. These traits are expected to scale inversely with niche breadth or current abundance, and to scale directly with dispersal potential. However, their utility to explain long term temporal patterns in local scale abundance is not known. Comparative methods employing an existing molecular phylogeny were used to incorporate evolutionary relatedness in a test for covariation of body size and geographic range with long term (1983 - 2010 local scale population variation of fishes in West Fork White River (Indiana, USA. The Bayesian model incorporating phylogenetic uncertainty and correlated predictors indicated that neither body size nor geographic range explained significant variation in population fluctuations over a 28 year period. Phylogenetic signal data indicated that body size and geographic range were less similar among taxa than expected if trait evolution followed a purely random walk. We interpret this as evidence that local scale population variation may be influenced less by species-level traits such as body size or geographic range, and instead may be influenced more strongly by a taxon's local scale habitat and biotic assemblages.

  14. Amerikaniseringen af den danske fagbevægelse

    DEFF Research Database (Denmark)

    Knudsen, Dino

    den amerikanske fagbevægelse der - bistået af CIA - førte an i den internationale kampagne mod kommunismen. Hermed blev danskerne involveret i hemmelige efterretningsoperationer, lyssky pengeoverførsler og var med til at splitte den internationale fagbevægelse. Den danske arbejderbevægelse spillede en...

  15. Jamie Oliver i den gode smags tjeneste

    DEFF Research Database (Denmark)

    Leer, Jonatan

    2014-01-01

    klassestereotyper og hierarkier, ligesom den bruges til at legitimere Jamies disciplinering af personer med dårlige madkompetencer, særligt arbejderklassemødre. Der er med andre ord grund til at forholde sig kritisk til strategien i Jamie Olivers opbyggelige kogebogsprojekt og stille spørgsmålet, om ikke kampen i...... den gode sags tjeneste først og fremmest tjener til at skabe et positivt billede af tv-kokken/kogebogsforfatteren som etisk individ (og brand) på bekostning af de gastronomisk nødstedte. Det skal nævnes, at jeg i min læsning af Jamies kogebogs-kampskrift har ladet mig inspirere af den russisk...

  16. Leadership pipeline i den offentlige sektor

    DEFF Research Database (Denmark)

    Dahl, Kristian Aagaard; Molly-Søholm, Thorkil

    en rejse ind i hjertet af offentlig ledelse med fokus på lederniveauerne: topchef, funktionel chef, leder af ledere og leder af medarbejdere. Med afsæt i righoldige eksempler og fortællinger fra virkeligheden introduceres læseren for ledelsesteorien den Offentlige Leadership Pipeline, som giver...... enkelte lederniveauer og udvikle ledertalenter. Teorien byder på et detaljeret ledelsesgrundlag, hvorudfra den offentlige organisation kan bygge en professionel værdikæde for ledelse ved at forme lederprofiler, -rekruttering, -uddannelse, -evaluering m.m. Leadership Pipeline i den offentlige sektor er...... baseret på et treårigt dansk praksisorienteret forskningsprojekt med deltagelse af 15 offentlige organisationer, som repræsenterer kommunerne, regionerne og staten. Projektet har videreudviklet en af de sidste 10 års mest indflydelsesrige ledelseteorier i de største private organisationer, Leadership...

  17. Polar bear maternity denning in the Beaufort Sea

    Science.gov (United States)

    Amstrup, Steven C.; Gardner, Craig L.

    1994-01-01

    The distribution of polar bears (Ursus maritimus) is circumpolar in the NOrthern Hemisphere, but known locations of maternal dens are concentrated in relatively few, widely scattered locations. Denning is either uncommon or unknown within gaps. To understand effects of industrial development and propose increases in hunting, the temporal and spatial distribution of denning in the Beaufort Sea must be known. We caputred and radiocollared polar bears between 1981 and 1991 and determined tht denning in the Beaufort Sea region was sufficient to account for the estimated population there. Of 90 dend, 48 were on drifting pack ice, 38 on land, and 4 on land-fast ice. The portions of dens on land was higher (P= 0.029) in later compared with earlier years of the study. Bears denning on pack ice drifting as far as 997 km (x=385km) while in dens. there was no difference in cun production by bears denning on land and pack ice (P =0.66). Mean entry and exit dates were 11 November and 5 April for land dens and 22 November and 26 March for pack-ice dens. Female polar bears captured in the Beaufort Sea appeared to be isolated from those caught eat of Cape Bathurst in Canada. Of 35 polar bears that denned along the mainland coast of Alaska and Canada 80% denned between 137 00'W snf 146 59'W. Bears followed to >1 den did not reuse sites and consecutive dens were 20-1,304 km apart. However radio-collared bears are largely faithful to substrate (pack-ice, land, and land-fast ice) and the general geographic area of previous dens. Bears denning on land may be vunerable to human activities such as hunting and industrial development. However, predictable denning chronology and alck of site fidelity indicate that many potential impacts on denning polar bears could be mitigated.

  18. Der westliche Blick auf den Orient

    Directory of Open Access Journals (Sweden)

    Antje Schrupp

    2007-11-01

    Full Text Available Angesichts der aktuellen Debatten über den Islam zeigen Christina von Braun und Bettina Mathes die viele Jahrhunderte alte Interpretationsgeschichte des Orients aus westlicher Perspektive auf. In ihrem materialreichen Band schildern sie die historische und geografische Vielfalt des Phänomens „Islam“ und zeigen, wie westliches Selbstverständnis und Projektionen das Bild des Okzidents vom Orient seit langem und bis heute prägen – auch da, wo man es auf den ersten Blick nicht vermuten würde.

  19. Farvel til globaliseringen som vi kendte den

    DEFF Research Database (Denmark)

    Böss, Michael

    2009-01-01

    Vi er endt med en krise, som rækker langt ud over det globale monetære system, fordi den ideologiske ortodoksi, der skabte den, har ført til udflytning af millioner af arbejdspladser, tæring af nationalstaternes sammenhængskraft og overgreb på naturen. Kronikken refererer bl.a. til John Maynard K...... Keynes og en artikel af økonomen Robert Skidelsky i The American Prospect. Udgivelsesdato: 12. januar 2009...

  20. De frygtsomme og den smalle palet

    DEFF Research Database (Denmark)

    Skude, Flemming

    2003-01-01

    Om den konventionelle modernismes bandlysning af alle farver på nær hvid - og om bl.a. Luis Barragan som et vellykket eksempel på at farver kan bringe arkitektur op i et højere perceptionsniveau.......Om den konventionelle modernismes bandlysning af alle farver på nær hvid - og om bl.a. Luis Barragan som et vellykket eksempel på at farver kan bringe arkitektur op i et højere perceptionsniveau....

  1. Construindo um Densímetro

    OpenAIRE

    Ricetti Rodrigo

    2002-01-01

    Para fins didáticos, é apresentada uma maneira de construir um densímetro, aparelho utilizadopara medir a densidade de fluidos. um aparato fácil de ser construído e muito simples de serutilizado. Sua principal vantagem sobre os densímetros que comercialmente encontramos, é a suacapacidade de medir a densidade de quaisquer líquidos, operando em qualquer faixa de densidade. Outra vantagem que apresenta, é a possibilidade de fazer uma medição relativa entre quaisquerlíquidos, não fazendo apenas ...

  2. Coarse-grained picture of Brownian motion in water: Role of size and interaction distance range on the nature of randomness.

    Science.gov (United States)

    Hanasaki, Itsuo; Nagura, Ryo; Kawano, Satoyuki

    2015-03-14

    The Brownian motion of a particle in a fluid is often described by the linear Langevin equation, in which it is assumed that the mass of the particle is sufficiently large compared to the surrounding fluid molecules. This assumption leads to a diffusion coefficient that is independent of the particle mass. The Stokes-Einstein equation indicates that the diffusion coefficient depends solely on the particle size, but the concept of size can be ambiguous when close to the molecular scale. We first examine the Brownian motion of simple model particles based on short-range interactions in water by the molecular dynamics method and show that the diffusion coefficient can vary with mass when this mass is comparable to that of the solvent molecules, and that this effect is evident when the solute particle size is sufficiently small. We then examine the properties of a water molecule considered as a solute in the bulk solvent consisting of the remainder of the water. A comparison with simple solute models is used to clarify the role of force fields. The long-range Coulomb interaction between water molecules is found to lead to a Gaussian force distribution in spite of a mass ratio and nominal size ratio of unity, such that solutes with short-range interactions exhibit non-Gaussian force distribution. Thus, the range of the interaction distance determines the effective size even if it does not represent the volume excluded by the repulsive force field.

  3. A Long-Term Comparison of Yellowstone Cutthroat Trout Abundance and Size Structure in Their Historical Range in Idaho.

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Kevin A.; Schill, Daniel J.; Elle, F. Steven

    2002-05-23

    We compared estimates of population abundance and size structure for Yellowstone cutthroat trout Oncorhynchus clarki bouvieri obtained by electrofishing 77 stream segments across southeastern Idaho in the 1980s and again in 1999-2000 to test whether populations of Yellowstone cutthroat trout had changed. Sites sampled in the 1980s were relocated in 1999-2000 by using maps and photographs or by finding original site-boundary stakes, so that the same reach of stream was sampled during both periods. Abundance of Yellowstone cutthroat trout longer than 10 cm did not change, averaging 41 fish/100 m of stream during both the 1980s and 1999-2000. The proportion of the total catch of trout composed of Yellowstone cutthroat trout also did not change, averaging 82% in the 1980s and 78% in 1999-2000. At the 48 sites where size structure could be estimated for both periods, the proportion of Yellowstone cutthroat trout that were 10-20 cm long declined slightly (74% versus 66%), but the change was due entirely to the shift in size structure at the Teton River sites. The number of sites that contained rainbow trout O. mykiss or cutthroat trout 3 rainbow trout hybrids rose from 23 to 37, but the average proportion of the catch composed of rainbow trout and hybrids did not increase (7% in both the 1980s and 1999-2000). Although the distribution and abundance of Yellowstone cutthroat trout have been substantially reduced in Idaho over the last century, our results indicate that Yellowstone cutthroat trout abundance and size structure in Idaho have remained relatively stable at a large number of locations for the last 10-20 years. The expanding distribution of rainbow trout and hybrids in portions of the upper Snake River basin, however, calls for additional monitoring and active management actions.

  4. Measured In Situ Atmospheric Ambient Aerosol Size-Distributions, Particle Concentrations, and Turbulence Data for RSA TA-6 Test Range, Redstone Arsenal, AL, April-May 2015

    Science.gov (United States)

    2015-09-01

    Concentrations, and Turbulence Data for RSA TA-6 Test Range, Redstone Arsenal , AL, April–May 2015 by Kristan Gurton, Stephanie Cunningham, and...Aerosol Size-Distributions, Particle Concentrations, and Turbulence Data for RSA TA-6 Test Range, Redstone Arsenal , AL, April–May 2015 by Kristan...Redstone Arsenal , AL Approved for public release; distribution unlimited. ii REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188

  5. Den Unge med Kræft

    DEFF Research Database (Denmark)

    I Den Unge med Kræft beskrives igennem en række artikler et 3-årigt tværfagligt udviklings- og forskningsprojekt på Onkologisk Afdeling D på Århus Universitetshospital. Projektet har involveret mere end 30 fagpersoner fra afdelingens sengeafsnit, ambulatorium, palliative enhed samt afdelingens so...

  6. Robotter – den asymmetriske krigs soldater?

    DEFF Research Database (Denmark)

    Helms, Niels Henrik

    2010-01-01

    Teknologien remedierer krigen. Robotterne er indrulleret i det militære arsenal, som vigtige aktører, men især den asymmetriske krig er en krig om folks hjerter, hvor beslutningstagerne må afveje prisen for indsatsen med nødvendigheden af at være tilstede. Og alle er til stede: robotterne, soldat...

  7. Den drikfældige engel?

    DEFF Research Database (Denmark)

    Eriksen, Sidsel

    1991-01-01

    Artiklen opfatter kvinders særlige drikkemønstre som et udslag af kultur og ikke (blot) som en konsekvens af kvindens særlige biologi. Udgangspunktet er, at drikkeri ikke passer sammen med den traditionelle kvinderolle. Endnu værre er det dog, hvis kvinder drak i offentligheden. Det er formentlig...

  8. Den skrøbelige sandhed

    DEFF Research Database (Denmark)

    Pedersen, Peter Ole

    2010-01-01

    Artiklen retter fokus mod de seneste års udvikling af den aktivistiske dokumentarfilm. Med analytiske punktnedslag hos instruktørerne Michael Moore, Morgan Spurlock, Dylan Avery, Robert Greenwald og Mauro Andrizzi undersøges de forbindelser der eksisterer mellem udtrykket i de populære spillefilm...

  9. Demokratiseringen af den politiske diskurs i Polen

    DEFF Research Database (Denmark)

    Arnfast, Juni Søderberg

    1999-01-01

    Gennem en analyse af brugen af personlige pronominer i politiske tekster fra udvalgte, polske medier diskuteres forandringerne i den polske, politiske diskurs gennem 1980'erne. Det påvises at det kommunistiske styres anvendelse af pronominet 'vi' skifter konnotationer i retning af en mindre ideol...

  10. Den udødelige gangster

    DEFF Research Database (Denmark)

    Bjerre, Thomas Ærvold

    2009-01-01

    Hollywood har igennem et århundrede hyldet de voldspsykopater, som de fleste gangstere nu engang er. Michael Manns Public Enemies er seneste skud på stammen i den lange række af amerikanske gangsterfilm, der tog sin begyndelse i starten af 1930'erne, og som meget hurtig blev til en mytisk...

  11. The Oscars og den klassiske Hollywoodfilm

    DEFF Research Database (Denmark)

    Nielsen, Jakob Isak

    2013-01-01

    Artiklen diskuterer, hvorvidt Oscaruddelingen har været med til at konsolidere de normer og traditioner, der kendetegner den klassiske Hollywoodfilm som et (fortællemæssigt) paradigme. Der tages afsæt i Oscarvindere fra Wings (1927) og frem til It Happened One Night (1934). Artiklen konkluderer...

  12. Den udødelige gangster

    DEFF Research Database (Denmark)

    Bjerre, Thomas Ærvold

    2009-01-01

    Hollywood har igennem et århundrede hyldet de voldspsykopater, som de fleste gangstere nu engang er. Michael Manns Public Enemies er seneste skud på stammen i den lange række af amerikanske gangsterfilm, der tog sin begyndelse i starten af 1930'erne, og som meget hurtig blev til en mytisk...

  13. Flaskevand - den rene vare i brandingens tidsalder

    DEFF Research Database (Denmark)

    Hermansen, Judy

    2008-01-01

    At tappe vand på flasker er blevet den mest udbredte globale virksomhed overhovedet, og forbruget af flaskevand stiger fortsat hurtigt - især i lande hvor man kan få rent drikkevand direkte fra hanen gratis eller til en meget billig penge. Hvorfor er vi havnet i sådan et tilsyneladende paradoksal...

  14. De Pretertiaire Historie van den Indischen Archipel

    NARCIS (Netherlands)

    Umbgrove, J.H.F.

    1935-01-01

    Aan de hand van een serie kaartjes wordt in deze studie gepoogd de ontwikkeling van den Indischen Archipel — verspreiding van land en zee, faciesgebieden, tijden van transgressies, plooiingsperiodes etc. — in pretertiairen tijd voor zoover mogelijk na te gaan. Bij het vermelden van feiten en van lit

  15. Evidensbaseret viden i den klinske sygepleje

    DEFF Research Database (Denmark)

    Andres, Emilie Marie; Larsen, Bente Malig

    2008-01-01

    University College Lillebælt, Sygeplejerskeuddannelsen i Svendborg og Odense har i efteråret 2007 og foråret 2008 arbejdet med projekt ’Uddannelse af kliniske vejledere i anvendelse af evidensbaseret viden i den kliniske sygepleje’. Projektet slutter efter planen i efteråret 2008. Projektet går ud...

  16. Den professionelle kommunikations renæssance

    Directory of Open Access Journals (Sweden)

    Niels Chr. Nielsen

    1993-09-01

    Full Text Available Mens hovedparten af den nyere PR-litteratur bevæger sig "på kommu- nikations niveau", og blot beskriver fremtidens virksomhedskommuni- kation i forhold til fortidens og nutidens kommunikationsformer, så gra- ver Niels Chr. Nielsen i denne artikel et par spadestik dybere. Han beskriver kort den igangværende erhvervsstrukturelle og teknologiske udvikling og trækker dernæst paralleller til kravene til virksomhedernes professionelle kommunikationsarbejde. Det er hans tese, at den tekno- logiske og erhvervsstukturelle udvikling ikke, som ofte påstået, fører til mere og mere sofistikeret manipulation med modtagerne; tværtimod vil det der ske en forskydning i argumentets og den ægte dialogs retning. Niels Chr. Nielsen, der er cand.mag i filosofi og idehistorie, skriver fra en position som udviklingsdirektør ved Dansk Teknologisk Institut. Artiklen er et bearbejdet oplæg fra konferencen "Excellent Public Relations", 18. marts 1993.

  17. Den fragmentariske by og det 'gode byliv'

    DEFF Research Database (Denmark)

    Pløger, J.

    Gennem en række betragtninger på bylivets værdier og normer, de bymæssige livsformer og livsstile udleder forfatteren, at den danske by- og boligplanlægning ikke i tilstrækkelig grad afspejler 'de ægte byborgeres' identifikation med bylivet og deres krav til bomiljøet. Mange singler, studerende, ...

  18. - den bedste, troeste og smukkeste Lighed

    DEFF Research Database (Denmark)

    Vejlby, Anna Schram

    Afhandlingen fortolker C.W. Eckersbergs portrætter ud fra formelle, filosofiske og sociale synsvinkler. Afhandlingen bevæger sig fra samfund til subjekt, fra ydre omstændigheder til indre rørelser, fra overordnede europæiske strømninger inden for kunst og filosofi til den subjektive oplevelse af...

  19. Portræt: Den koreanske dansker

    DEFF Research Database (Denmark)

    Henriksen, Carsten

    2009-01-01

    Lene Myong Petersen har som den første i Danmark skrevet ph.d.-afhandling om adoption. Og ifølge Lene Myong Petersen er det belastede begreb om race ikke til at slippe uden om, hvis man vil forstå vilkårene for adopterede i Danmark....

  20. Tre teorier om den moralske udvikling

    DEFF Research Database (Denmark)

    Bo, Inger Glavind; Andreasen, Brian Kjær

    I artiklen gennemgås tre forskellige men teorihistorisk relaterede perspektiver på forståelsen af moralsk udvikling: Piaget, Kohlberg og Gilligan. I den efterfølgende diskussion af disse teoretikeres respektive positioner påpeges såvel forskelle som ligheder i deres betoning af moralens karakter...

  1. Hjernerum - Den følelsesfulde hjerne

    DEFF Research Database (Denmark)

    Kringelbach, Morten L.

    Learning Lab Denmark/Peoples Press, Copenhagen. 2004 Kort beskrivelse: 'Hjernerum' er en fortælling fra hjerneforskningens frontlinie om de nyeste indsigter i den følelsesfulde hjerne. Med udgangspunkt i egen forskning og historisk indsigt i alt fra videnskabs- til litteratur- og kunsthistorie, t...

  2. Dr. Bakhuizen van den Brink retires

    NARCIS (Netherlands)

    Kalkman, C.

    1976-01-01

    On 11 September 1976 dr. Reinier Cornelis Bakhuizen van den Brink will reach the age of 65 and so he must retire from his position as a senior botanist at the Rijksherbarium. He has worked in our institute since December 1943, after having obtained his doctor’s degree in Utrecht. At the Rijksherbari

  3. Evaluation of the size segregation of elemental carbon (EC) emission in Europe: Influence on the simulation of EC long-range transportation

    NARCIS (Netherlands)

    Chen, Y.; Cheng, Y.F.; Nordmann, S.; Birmili, W.; Denier Van Der Gon, H.A.C.; Ma, N.; Wolke, R.; Wehner, B.; Sun, J.; Spindler, G.; Mu, Q.; Pöschl, U.; Su, H.; Wiedensohler, A.

    2016-01-01

    Elemental Carbon (EC) has a significant impact on human health and climate change. In order to evaluate the size segregation of EC emission in the EUCAARI inventory and investigate its influence on the simulation of EC long-range transportation in Europe, we used the fully coupled online Weather

  4. Evaluation of the size segregation of elemental carbon (EC) emission in Europe: Influence on the simulation of EC long-range transportation

    NARCIS (Netherlands)

    Chen, Y.; Cheng, Y.F.; Nordmann, S.; Birmili, W.; Denier Van Der Gon, H.A.C.; Ma, N.; Wolke, R.; Wehner, B.; Sun, J.; Spindler, G.; Mu, Q.; Pöschl, U.; Su, H.; Wiedensohler, A.

    2016-01-01

    Elemental Carbon (EC) has a significant impact on human health and climate change. In order to evaluate the size segregation of EC emission in the EUCAARI inventory and investigate its influence on the simulation of EC long-range transportation in Europe, we used the fully coupled online Weather Res

  5. The effect of kauri (Agathis australis) on grain size distribution and clay mineralogy of andesitic soils in the Waitakere Ranges, New Zealand

    NARCIS (Netherlands)

    Jongkind, A.G.; Buurman, P.

    2006-01-01

    Kauri (Agathis australis) is generally associated with intense podzolisation, but little research has been carried out to substantiate this. We studied soil profiles, grain size distribution patterns and clay mineralogy under kauri and broadleaf/tree fern vegetation in the Waitakere Ranges, North Is

  6. Christian Birch - den korrupte konferensråd

    DEFF Research Database (Denmark)

    Jensen, Mette Frisk

    2005-01-01

      http://www.sidensaxo.dk/fileadmin/saxo-abstract-uploads/christian_birch_den_korrupte_konferensraad_2005_3.pdf......  http://www.sidensaxo.dk/fileadmin/saxo-abstract-uploads/christian_birch_den_korrupte_konferensraad_2005_3.pdf...

  7. Opera til folket? - Den Jyske Opera 70 år

    DEFF Research Database (Denmark)

    Bonde, Lars Ole

    2017-01-01

    Introduktion til Den Jyske Operas 70 års jubilæumsforestilling og programnoter til samtlige numre.......Introduktion til Den Jyske Operas 70 års jubilæumsforestilling og programnoter til samtlige numre....

  8. Den første kunsthistorie var romersk

    DEFF Research Database (Denmark)

    Isager, Jacob Erik

    2013-01-01

    Plinius den Ældres afsnit om skulptur og maleri som inspiration for senere kunsthistorier og kunstnere......Plinius den Ældres afsnit om skulptur og maleri som inspiration for senere kunsthistorier og kunstnere...

  9. Opera til folket? - Den Jyske Opera 70 år

    DEFF Research Database (Denmark)

    Bonde, Lars Ole

    2017-01-01

    Introduktion til Den Jyske Operas 70 års jubilæumsforestilling og programnoter til samtlige numre.......Introduktion til Den Jyske Operas 70 års jubilæumsforestilling og programnoter til samtlige numre....

  10. Hepatische Effekte von Wachstumshormon auf den Glukosestoffwechsel

    Directory of Open Access Journals (Sweden)

    Rufinatscha K

    2015-01-01

    Full Text Available Untherapierter Wachstumshormonmangel im Erwachsenenalter (AGHD ist mit viszeraler Adipositas, Dyslipidämie, Insulinresistenz und Fettleber verbunden. Interessanterweise finden sich viele der AGHD-Merkmale auch bei Patienten mit metabolischem Syndrom. Die nichtalkoholische Fettlebererkrankung (NAFLD gilt als hepatische Manifestation des metabolischen Syndroms. In einigen Studien wurden bei Patienten mit NAFLD verminderte Konzentrationen von zirkulierendem IGF-1, dessen Synthese zu einem großen Teil durch Wachstumshormon (GH reguliert wird, beschrieben. Mäuse, welche eine hepatische Wachstumshormondefizienz aufweisen, zeigen zahlreiche phänotypische Charakteristika des metabolischen Syndroms, unter anderen auch eine Fettlebererkrankung. Dies legt einen Zusammenhang zwischen dem Wachstumshormon und der Entstehung einer NAFLD nahe. Ziel unserer Studie ist es, in einem Zellkulturmodell die Effekte des Wachstumshormons auf den intrazellulären Glukosestoffwechsel näher zu untersuchen. Im Detail sollen Auswirkungen einer verminderten Wachstumshormonrezeptorexpression auf den Insulinsignaltransduktionsweg, den Glykogengehalt und auf Schlüsselenzyme der Glukoneogenese untersucht werden. Präliminäre Daten zeigen, dass eine verminderte Wachstumshormonrezeptorexpression mit intrazellulären Veränderungen des hepatischen Glukosestoffwechsels verbunden ist. Die verminderte Insulinsensitivität könnte auf Alterationen im Insulinsignaltransduktionsweg und Änderungen der Glukoneogenese zurückzuführen sein. Diese präliminären Daten weisen darauf hin, dass Wachstumshormon einen direkten Einfluss auf den Glukosestoffwechsel in der Leber hat. Zudem legen sie nahe, dass Veränderungen im Wachstumshormonstoffwechsel einen wichtigen pathophysiologischen Mechanismus in der Entstehung der Fettlebererkrankung bei Patienten mit metabolischem Syndrom darstellen könnten. Der folgende Artikel soll einen kurzen Überblick über die Effekte von Wachstumshormon

  11. Despotism and risk of infanticide influence grizzly bear den-site selection.

    Directory of Open Access Journals (Sweden)

    Nathan S Libal

    Full Text Available Given documented social dominance and intraspecific predation in bear populations, the ideal despotic distribution model and sex hypothesis of sexual segregation predict adult female grizzly bears (Ursus arctos will avoid areas occupied by adult males to reduce risk of infanticide. Under ideal despotic distribution, juveniles should similarly avoid adult males to reduce predation risk. Den-site selection and use is an important component of grizzly bear ecology and may be influenced by multiple factors, including risk from conspecifics. To test the role of predation risk and the sex hypothesis of sexual segregation, we compared adult female (n = 142, adult male (n = 36, and juvenile (n = 35 den locations in Denali National Park and Preserve, Alaska, USA. We measured elevation, aspect, slope, and dominant land cover for each den site, and used maximum entropy modeling to determine which variables best predicted den sites. We identified the global model as the best-fitting model for adult female (area under curve (AUC = 0.926 and elevation as the best predictive variable for adult male (AUC = 0.880 den sites. The model containing land cover and elevation best-predicted juvenile (AUC = 0.841 den sites. Adult females spatially segregated from adult males, with dens characterized by higher elevations (mean= 1,412 m, SE = 52 and steeper slopes (mean = 21.9°, SE = 1.1 than adult male (elevation: mean = 1,209 m, SE = 76; slope: mean = 15.6°, SE = 1.9 den sites. Juveniles used a broad range of landscape attributes but did not avoid adult male denning areas. Observed spatial segregation by adult females supports the sex hypothesis of sexual segregation and we suggest is a mechanism to reduce risk of infanticide. Den site selection of adult males is likely related to distribution of food resources during spring.

  12. Despotism and risk of infanticide influence grizzly bear den-site selection.

    Science.gov (United States)

    Libal, Nathan S; Belant, Jerrold L; Leopold, Bruce D; Wang, Guiming; Owen, Patricia A

    2011-01-01

    Given documented social dominance and intraspecific predation in bear populations, the ideal despotic distribution model and sex hypothesis of sexual segregation predict adult female grizzly bears (Ursus arctos) will avoid areas occupied by adult males to reduce risk of infanticide. Under ideal despotic distribution, juveniles should similarly avoid adult males to reduce predation risk. Den-site selection and use is an important component of grizzly bear ecology and may be influenced by multiple factors, including risk from conspecifics. To test the role of predation risk and the sex hypothesis of sexual segregation, we compared adult female (n = 142), adult male (n = 36), and juvenile (n = 35) den locations in Denali National Park and Preserve, Alaska, USA. We measured elevation, aspect, slope, and dominant land cover for each den site, and used maximum entropy modeling to determine which variables best predicted den sites. We identified the global model as the best-fitting model for adult female (area under curve (AUC) = 0.926) and elevation as the best predictive variable for adult male (AUC = 0.880) den sites. The model containing land cover and elevation best-predicted juvenile (AUC = 0.841) den sites. Adult females spatially segregated from adult males, with dens characterized by higher elevations (mean= 1,412 m, SE = 52) and steeper slopes (mean = 21.9°, SE = 1.1) than adult male (elevation: mean = 1,209 m, SE = 76; slope: mean = 15.6°, SE = 1.9) den sites. Juveniles used a broad range of landscape attributes but did not avoid adult male denning areas. Observed spatial segregation by adult females supports the sex hypothesis of sexual segregation and we suggest is a mechanism to reduce risk of infanticide. Den site selection of adult males is likely related to distribution of food resources during spring.

  13. Premolarized double dens in dente in albinism - A case report

    Directory of Open Access Journals (Sweden)

    Suprabha B

    2005-09-01

    Full Text Available Dens in dente are known to be associated with many dental abnormalities such as taurodontism microdontia, gemination, and dens evaginatus. This paper describes a rare case of double dens in dente in a lateral incisor with crown morphology similar to a premolar present in a patient with features of albinism. Problems associated with this condition and their management is discussed.

  14. Det lille land før den store krig

    DEFF Research Database (Denmark)

    Clemmesen, Michael Hesselholt

    Krige i Nordafrika og på Balkan. Den Store Krig truede. Den tyske marine brugte danske farvande som sine egne, men den unge, aggressive britiske marineminister Churchill ville nu presse sin flåde ind i Kattegat, uden hensyn til dansk og svensk neutralitet, i risikable operationer, der kunne udløse...

  15. Den Europæiske Union som liberalistisk medborgerprojekt

    DEFF Research Database (Denmark)

    Agustin, Lise Rolandsen

    2005-01-01

    Den Europæiske Union (EU) befinder sig i en ufrivillig tænkepause efter den franske afvisning af Traktaten om en forfatning for Europa ved folkeafstemningen den 20. maj 2005. Det er således tid til at reflektere over, hvori det europæiske samarbejde består i dag, og over, hvorledes det kan eller ...

  16. Bibemærkninger til den kognitive kapitalisme

    DEFF Research Database (Denmark)

    Petersen, Lars Axel

    2009-01-01

    Med den franske økonom Yann Moulier-Boutangs vision om pollensamfundet sættes viden - og ikke mindst vores forståelse af vidensarbejderen - i et nyt lys. Lars Axel Pedersen analyserer, med Marx under den ene arm og Lyotard under den anden, forestillingen om de fritsvævende og altbestøvende...

  17. [Von den Restgütern zu den Sowchosen in Estland 1939-1953. Dokumentensammlung] / Olev Liivik

    Index Scriptorium Estoniae

    Liivik, Olev, 1975-

    2011-01-01

    Arvustus: Von den Restgütern zu den Sowchosen in Estland 1939-1953 : Dokumentensammlung / Hrsg. von David Feest, Karsten Brüggemann. Berlin : Lit Verlag, 2010. (Schriften der Baltischen historischen Kommission ; Bd. 15)

  18. [Von den Restgütern zu den Sowchosen in Estland 1939-1953. Dokumentensammlung] / Olev Liivik

    Index Scriptorium Estoniae

    Liivik, Olev, 1975-

    2011-01-01

    Arvustus: Von den Restgütern zu den Sowchosen in Estland 1939-1953 : Dokumentensammlung / Hrsg. von David Feest, Karsten Brüggemann. Berlin : Lit Verlag, 2010. (Schriften der Baltischen historischen Kommission ; Bd. 15)

  19. Nanoporous anodic aluminum oxide with a long-range order and tunable cell sizes by phosphoric acid anodization on pre-patterned substrates

    Science.gov (United States)

    Surawathanawises, Krissada; Cheng, Xuanhong

    2014-01-01

    Nanoporous anodic aluminum oxide (AAO) has been explored for various applications due to its regular cell arrangement and relatively easy fabrication processes. However, conventional two-step anodization based on self-organization only allows the fabrication of a few discrete cell sizes and formation of small domains of hexagonally packed pores. Recent efforts to pre-pattern aluminum followed with anodization significantly improve the regularity and available pore geometries in AAO, while systematic study of the anodization condition, especially the impact of acid composition on pore formation guided by nanoindentation is still lacking. In this work, we pre-patterned aluminium thin films using ordered monolayers of silica beads and formed porous AAO in a single-step anodization in phosphoric acid. Controllable cell sizes ranging from 280 nm to 760 nm were obtained, matching the diameters of the silica nanobead molds used. This range of cell size is significantly greater than what has been reported for AAO formed in phosphoric acid in the literature. In addition, the relationships between the acid concentration, cell size, pore size, anodization voltage and film growth rate were studied quantitatively. The results are consistent with the theory of oxide formation through an electrochemical reaction. Not only does this study provide useful operational conditions of nanoindentation induced anodization in phosphoric acid, it also generates significant information for fundamental understanding of AAO formation. PMID:24535886

  20. Nanoporous anodic aluminum oxide with a long-range order and tunable cell sizes by phosphoric acid anodization on pre-patterned substrates.

    Science.gov (United States)

    Surawathanawises, Krissada; Cheng, Xuanhong

    2014-01-20

    Nanoporous anodic aluminum oxide (AAO) has been explored for various applications due to its regular cell arrangement and relatively easy fabrication processes. However, conventional two-step anodization based on self-organization only allows the fabrication of a few discrete cell sizes and formation of small domains of hexagonally packed pores. Recent efforts to pre-pattern aluminum followed with anodization significantly improve the regularity and available pore geometries in AAO, while systematic study of the anodization condition, especially the impact of acid composition on pore formation guided by nanoindentation is still lacking. In this work, we pre-patterned aluminium thin films using ordered monolayers of silica beads and formed porous AAO in a single-step anodization in phosphoric acid. Controllable cell sizes ranging from 280 nm to 760 nm were obtained, matching the diameters of the silica nanobead molds used. This range of cell size is significantly greater than what has been reported for AAO formed in phosphoric acid in the literature. In addition, the relationships between the acid concentration, cell size, pore size, anodization voltage and film growth rate were studied quantitatively. The results are consistent with the theory of oxide formation through an electrochemical reaction. Not only does this study provide useful operational conditions of nanoindentation induced anodization in phosphoric acid, it also generates significant information for fundamental understanding of AAO formation.

  1. On the pressure difference ranges which assure a specified gap size for semiconductor crystals grown in terrestrial dewetted Bridgman

    Science.gov (United States)

    Braescu, L.

    2010-04-01

    The complexity of the dewetting phenomenon on the ground consists mainly in the presence of the hydrostatic pressure which should be counterbalanced by a supplementary gas pressure difference ΔP=Pc-Ph between the cold and hot sides of the sample. The experiments have shown that using uncoated and coated crucibles, detached and partially detached growth can be obtained; dewetting became unsuccessful when the liquid-solid interface changed its shape—phenomenon which proved connection between the meniscus shape, pressure difference and stable dewetting. Because the interest is to grow crystals with specified gap size, the ΔP limits and the corresponding menisci shapes for which dewetting is feasible are first established, on the base of the theoretical and computational investigations. Then, for the obtained menisci, the static stability via the conjugate point criterion of the calculus of variations is studied in the cases of the classical semiconductors grown in (i) uncoated crucibles (i.e., the wetting angle θc and growth angle αe satisfy the inequality θc+αeii) coated crucibles or pollution ( θc+αe≥180∘). In this way, gap thickness limitations for which the menisci are physically realizable are obtained. Numerical results are performed for InSb crystal grown in uncoated ampoule, and for Ge crystal grown in coated ampoule.

  2. Response of the Nevzorov hot wire probe in clouds dominated by droplet conditions in the drizzle size range

    Directory of Open Access Journals (Sweden)

    A. Schwarzenboeck

    2009-12-01

    Full Text Available During the airborne research mission ASTAR 2004 (Arctic Study of Tropospheric Aerosols, Clouds and Radiation performed over the island of Svalbard in the Arctic a constant-temperature hot-wire Nevzorov Probe designed for aircraft measurements, has been used onboard the aircraft POLAR 2. The Nevzorov probe measured liquid water (LWC and total condensed water content (TWC in supercooled liquid and partly mixed phase clouds, respectively. As for other hotwire probes the calculation of LWC and/or TWC (and thus the ice water content IWC has to take into account the collection efficiencies of the two separate sensors for LWC and TWC which both react differently with respect to cloud phase and what is even more difficult to quantify with respect to the size of ice and liquid cloud particles. The study demonstrates that during pure liquid cloud sequences the ASTAR data set of the Nevzorov probe allowed to improve the quantification of the collection efficiency, particularly of the LWC probe part with respect to water. The improved quantification of liquid water content should lead to improved retrievals of IWC content. Simultaneous retrievals of LWC and IWC are correlated with the asymmetry factor derived from the Polar Nephelometer instrument.

  3. Movement Patterns, Home Range Size and Habitat Selection of an Endangered Resource Tracking Species, the Black-Throated Finch (Poephila cincta cincta).

    Science.gov (United States)

    Rechetelo, Juliana; Grice, Anthony; Reside, April Elizabeth; Hardesty, Britta Denise; Moloney, James

    2016-01-01

    Understanding movement patterns and home range of species is paramount in ecology; it is particularly important for threatened taxa as it can provide valuable information for conservation management. To address this knowledge gap for a range-restricted endangered bird, we estimated home range size, daily movement patterns and habitat use of a granivorous subspecies in northeast Australia, the black-throated finch (Poephila cincta cincta; BTF) using radio-tracking and re-sighting of colour banded birds. Little is known about basic aspects of its ecology including movement patterns and home range sizes. From 2011-2014 we colour-banded 102 BTF and radio-tracked 15 birds. We generated home ranges (calculated using kernel and Minimum Convex Polygons techniques of the 15 tracked BTF). More than 50% of the re-sightings occurred within 200 m of the banding site (n = 51 out of 93 events) and within 100 days of capture. Mean home-range estimates with kernel (50%, 95% probability) and Minimum Convex Polygons were 10.59 ha, 50.79 ha and 46.27 ha, respectively. Home range size differed between two capture sites but no seasonal differences were observed. BTF home ranges overlapped four habitat types among eight available. Habitat selection was different from random at Site 1 (χ2 = 373.41, df = 42, p<0.001) and Site 2 (χ2 = 1896.1, df = 45, p<0.001); however, the preferred habitats differed between the two sites. BTF moved further than expected on the basis of current knowledge, with three individuals being resighted over 15 km from the banding location. However, BTF maintain small home ranges over short time-frames. Occasional long-distance movements may be related to resource bottleneck periods. Daily movement patterns differed between sites, which is likely linked to the fact that the sites differ in the spatial distribution of resources. The work provides information about home range sizes and local movement of BTF that will be valuable for targeting effective management

  4. Heading for the hills: risk avoidance drives den site selection in African wild dogs.

    Directory of Open Access Journals (Sweden)

    Craig R Jackson

    Full Text Available Compared to their main competitors, African wild dogs (Lycaon pictus have inferior competitive abilities and interspecific competition is a serious fitness-limiting factor. Lions (Panthera leo are the dominant large carnivore in African savannah ecosystems and wild dogs avoid them both spatially and temporally. Wild dog young are particularly vulnerable and suffer high rates of mortality from lions. Since lions do not utilize all parts of the landscape with an equal intensity, spatial variation in lion densities can be exploited by wild dogs both during their general ranging behaviour, but more specifically when they are confined to a den with vulnerable young. Since patches of rugged terrain are associated with lower lion densities, we hypothesized that these comparatively safe habitats should be selected by wild dogs for denning. We investigated the relationship between the distribution of 100 wild dog den sites and the occurrence of rugged terrain in four wild dog populations located in Tanzania, Zimbabwe and South Africa. A terrain ruggedness index was derived from a 90 m digital elevation model and used to map terrain ruggedness at each site. We compared characteristics of actual and potential (random den sites to determine how wild dogs select den sites. The distributions of wild dog dens were strongly associated with rugged terrain and wild dogs actively selected terrain that was more rugged than that available on average. The likelihood of encountering lions is reduced in these habitats, minimizing the risk to both adults and pups. Our findings have important implications for the conservation management of the species, especially when assessing habitat suitability for potential reintroductions. The simple technique used to assess terrain ruggedness may be useful to investigate habitat suitability, and even predict highly suitable denning areas, across large landscapes.

  5. Climate change velocity since the Last Glacial Maximum and its importance for patterns of species richness and range size

    DEFF Research Database (Denmark)

    Sandel, Brody Steven; Arge, Lars Allan; Svenning, J.-C.

    Contemporary patterns of species distributions are influenced by both current and historical conditions. Historically unstable climates can lead to reductions in species richness, when species go extinct because they cannot track climate changes, when dispersal limitation causes species to fail...... to fully occupy suitable habitat, or when local diversification rates are depressed by local population extinctions and changing selective regimes. Locations with long-term climate instability should therefore show reduced species richness with small-ranged species particularly missing from the community...... is likely to be a more biologically meaningful measure of climate stability than the previously used simple climate anomaly, because it scales climate change relative to local variation in climate, capturing the potential for topographic refuges to buffer species from climate change. We tested...

  6. Climate change velocity since the Last Glacial Maximum and its importance for patterns of species richness and range size

    DEFF Research Database (Denmark)

    Sandel, Brody Steven; Arge, Lars Allan; Svenning, J.-C.

    Contemporary patterns of species distributions are influenced by both current and historical conditions. Historically unstable climates can lead to reductions in species richness, when species go extinct because they cannot track climate changes, when dispersal limitation causes species to fail...... to fully occupy suitable habitat, or when local diversification rates are depressed by local population extinctions and changing selective regimes. Locations with long-term climate instability should therefore show reduced species richness with small-ranged species particularly missing from the community....... We used a novel measure of climate stability, climate change velocity, which combines information on temporal and spatial gradients in climate to describe the rate at which a particular climate condition is moving over the surface of the Earth. Climate change velocity since the Last Glacial Maximum...

  7. A comparison of the home range sizes of mainland and island populations of black-faced lion tamarins (Leontopithecus caissara) using different spatial analysis.

    Science.gov (United States)

    Nascimento, Alexandre T Amaral; Schmidlin, Lucia A J; Valladares-Padua, Claudio B; Matushima, Eliana R; Verdade, Luciano M

    2011-11-01

    The critically endangered black-faced lion tamarin, Leontopithecus caissara, has a restricted geographical distribution consisting of small mainland and island populations, each with distinct habitats in coastal southeastern Brazil. Necessary conservation management actions require an assessment of whether differences in habitats are reflected in use of space by the species. We studied two tamarin groups on the mainland at São Paulo state between August 2005 and March 2007, and compared the results with data from Superagui Island. Three home range estimators were used: minimum convex polygon (MCP), Kernel, and the new technique presented dissolved monthly polygons (DMP). These resulted, respectively, in home ranges of 345, 297, and 282 ha for the 12-month duration of the study. Spatial overlap of mainland groups was extensive, whereas temporal overlap was not, a pattern that indicates resource partitioning is an important strategy to avoid intraspecific competition. L. caissara large home ranges seem to be dynamic, with constant incorporation of new areas and abandonment of others through time. The main difference between mainland and island groups is the amount and variety of sleeping sites. A better understanding of the home range sizes, day range lengths, and territorial behavior of this species will aid in developing better management strategies for its protection. Additionally, the presented DMP protocol is a useful improvement over the MCP method as it results in more realistic home range sizes for wildlife species. © 2011 Wiley Periodicals, Inc.

  8. Validity of Dynamic Light Scattering Method to Analyze a Range of Gold and Copper Nanoparticle Sizes Attained by Solids Laser Ablation in Liquid

    Directory of Open Access Journals (Sweden)

    Yu. V. Golubenko

    2014-01-01

    Full Text Available Nanoparticles of metals possess a whole series of features, concerned with it’s sizes, this leads to appearing or unusual electromagnetic and optical properties, which are untypical for particulates.An extended method of receiving nanoparticles by means of laser radiation is pulse laser ablation of hard targets in liquid medium.Varying the parameters of laser radiation, such as wavelength of laser radiation, energy density, etc., we can operate the size and shape of the resultant particles.The greatest trend of application in medicine have the nanoparticles of iron, copper, silver, silicon, magnesium, gold and zinc.The subject matter in this work is nanoparticles of copper and gold, received by means of laser ablation of hard targets in liquid medium.The aim of exploration, represented in the article, is the estimation of application of the dynamic light scattering method for determination of the range of nanoparticles sizes in the colloidal solution.For studying of the laser ablation process was chosen the second harmonic of Nd:YAG laser with the wavelength of 532 nm. Special attention was spared for the description of the experiment technique of receiving of nanoparticles.As the liquid medium ethanol and distillation water were used.For exploration of the received colloidal system have been used the next methods: DLS, transmission electron microscopy (TEM and scanning electron microscopy (SEM.The results of measuring by DLS method showed that colloidal solution of the copper in the ethanol is the steady system. Copper nanoparticle’s size reaches 200 nm and is staying in the same size for some time.Received system from the gold’s nanoparticles is polydisperse, unsteady and has a big range of the nanoparticle’s sizes. This fact was confirmed by means of photos, got from the TEM FEI Tecnai G2F20 + GIF and SEM Helios NanoLab 660. The range of the gold nanoparticle’s sizes is from 5 to 60 nm. So, it has been proved that the DLS method is

  9. On dependence of mechanical properties of brittle material on partial concentrations of different sized pores in its structure in a wide range of porosity

    Science.gov (United States)

    Konovalenko, Igor S.; Smolin, Alexey Yu.; Psakhie, Sergey G.

    2015-10-01

    2D and 3D models of mechanical behavior of brittle porous material under uniaxial compression loading were developed in the framework of the movable cellular automaton method. The considered material was characterized by pore size distribution function having two maxima. On the basis of simulation results the dependence of the strength properties of brittle porous material on its total porosity and partial porosities corresponding to pores with different size was revealed. The change in internal structure of material in a wide range of mentioned parameters was analyzed. The main structural factors influencing compression strength of the material at various combinations of values of porosity parameters were identified.

  10. Importance of native grassland habitat for den-site selection of Indian foxes in a fragmented landscape.

    Directory of Open Access Journals (Sweden)

    Girish Arjun Punjabi

    Full Text Available Fragmentation of native habitats is now a ubiquitous phenomenon affecting wildlife at various scales. We examined selection of den-sites (n = 26 by Indian foxes (Vulpes bengalensis in a highly modified short-grassland landscape in central India (Jan-May, 2010. At the scale of the home-range, defined by an 800 m circular buffer around den sites, we examined the effect of land-cover edges and roads on selection of sites for denning using a distance-based approach. At the smaller den-area scale, defined by a 25 m x 25 m plot around den and paired available sites, the effect of microhabitat characteristics was examined using discrete-choice models. Indian foxes selected den-sites closer to native grasslands (t = -9.57, P < 0.001 and roads (t = -2.04, P = 0.05 than random at the home-range scale. At the smaller scale, abundance of rodents and higher visibility increased the odds of selection of a site by eight and four times respectively, indicating resource availability and predator avoidance to be important considerations for foxes. Indian foxes largely chose to den in human-made structures, indicated by the proportion of dens found in earthen bunds (0.69 and boulder piles (0.27 in the study area. With agricultural expansion and human modification threatening native short-grassland habitats, their conservation and effective management in human-dominated landscapes will benefit the Indian fox. The presence of some human-made structures within native grasslands would also be beneficial for this den-dependent species. We suggest future studies examine the impact of fragmentation and connectivity of grasslands on survival and reproductive success of the Indian fox.

  11. The turbulent structures around clusters formed under a range of armoring shear stresses and grain size distributions

    Science.gov (United States)

    Curran, J. C.; Tan, L.

    2011-12-01

    In gravel bed rivers, low flows generate shear stresses less than what is needed to entrain the largest particles but large enough to transport the fines. During sustained low flows, fine sediment winnows from the bed surface and an armored surface layer forms. As the surface armor forms, a surface structure develops that increases bed roughness and flow resistance and can be characterized by the presence of clusters. Individual clusters are known to exert a significant influence over the spatial and temporal flow processes acting in the vicinity of the bed. A series of flume experiments investigated the turbulent structures formed around clusters naturally developed during bed armoring. The series of experiments created armored beds using four different flow rates and four different bulk grain size distributions which progressively increased in the percent sand in the bed sediment. Following an initial run segment that established equilibrium sediment transport and full bed mobility, the flow rate in the flume was reduced and the bed surface fully armored. Once armored, clusters were identified using a combination of bed DEM, vertical profile, and visual analysis. Instantaneous three-dimensional flow velocities were measured around the clusters using an Acoustic Doppler Velocimeter, and these values were used to calculate Reynolds shear stresses, turbulence intensities, and turbulent kinetic energy in the flow field. Results show a significant change in the flow profiles over a cluster when compared to an open area of the armored bed. Reynolds shear stresses doubled over the cluster and turbulence intensity reached a peak value right above the single cluster. The results also suggest the effects of the single cluster on the surrounding flow dynamics are quite localized and limited to 30cm in lateral orientation. Quadrant analysis showing large ejection and sweep events around clusters indicates vortex formation at the cluster crest. The magnitude of the coherent

  12. Arzneimitteltherapie: Relevante Interaktionen und (negative Effekte auf den Knochen

    Directory of Open Access Journals (Sweden)

    Woschnagg H

    2003-01-01

    Full Text Available Dieses Review ist das Ergebnis einer Medline-Recherche. Demnach erscheinen die Auswirkungen der Genußgifte Alkohol, Nikotin und Kaffee auf den Knochen eher nachteilig zu sein. Nicht gering ist die Anzahl der Medikamente, die den Vitamin D-Stoffwechsel beeinflussen. Eine Androgenentzugstherapie beeinflußt den Knochenstoffwechsel negativ, Thyroxin hat diesen Effekt nur in einer deutlich suppressiv wirksamen Dosierung. Protonenpumpenhemmer verbessern die Resorption der Bisphosphonate sehr, Hydrochlorothiazide verhindern den renalen Kalziumverlust. Manche Statine und intermittierend verabreichte Nitrate scheinen ebenfalls günstige Auswirkungen auf den Knochen zu haben.

  13. Stephen Schwartz og den folkelige lyd

    DEFF Research Database (Denmark)

    Kreutzfeldt, Jacob

    2013-01-01

    Stephen Schwartz døde i foråret 2013. I denne artikel forsøger Jacob Kreutzfeldt, der gennemførte en række interviews med Schwartz gennem hans sidste år, at indkredse den æstetiske grundholdning, der prægede hans arbejde med radiomontagen i DR.......Stephen Schwartz døde i foråret 2013. I denne artikel forsøger Jacob Kreutzfeldt, der gennemførte en række interviews med Schwartz gennem hans sidste år, at indkredse den æstetiske grundholdning, der prægede hans arbejde med radiomontagen i DR....

  14. Stephen Schwartz og den folkelige lyd

    DEFF Research Database (Denmark)

    Kreutzfeldt, Jacob

    2013-01-01

    Stephen Schwartz døde i foråret 2013. I denne artikel forsøger Jacob Kreutzfeldt, der gennemførte en række interviews med Schwartz gennem hans sidste år, at indkredse den æstetiske grundholdning, der prægede hans arbejde med radiomontagen i DR.......Stephen Schwartz døde i foråret 2013. I denne artikel forsøger Jacob Kreutzfeldt, der gennemførte en række interviews med Schwartz gennem hans sidste år, at indkredse den æstetiske grundholdning, der prægede hans arbejde med radiomontagen i DR....

  15. Den Digital Kirkegårdskultur

    DEFF Research Database (Denmark)

    Sabra, Jakob Borrits

    2016-01-01

    , politiske og funktionelle dimensioner. Det for- udsætter et overblik over digitale fænomener og tendenser indenfor medieringer af døden i den danske kirkegårds- og mindekultur. Jeg vil således først give eksempler på, hvor- dan digitale teknologier og sociale medier kommer til udtryk i denne sammenhæng, og...... (primært vestlige) forskningslitteratur på området, vil jeg i denne artikel argumentere for, at kirkegården også har en voksende digital dimension, der kræver opmærk- somhed, holdningsudveksling og stillingtagen på samme vis som stedets religiøse, sekulære, æstetiske, sociale, kulturelle, historiske...

  16. Studie af den amerikanske doktrin for Counterinsurgency

    DEFF Research Database (Denmark)

    Møller, Nicolai Stahlfest

    2006-01-01

    strategisk partner, og den mulige indsættelse i missioner, hvor kontakt med, og måske bekæmpelse af, fjendtlige oprørsbevægelser vil forekomme. Maos teori og den nyere radikale islams teori ses som værende repræsentative for oprørsbevægelser ift. både amerikanske erfaringer og det forventede danske...... synes også at være udtalt i imødegåelsen af radikal islam, hvilket er en stor udfordring for både militære og civile myndigheder og organisationer. For at fungere som COIN enhed kræver det veluddannede enheder, da de udover de basale soldateropgaver også skal kunne støtte ifm. CIMIC opgaver, løsning af...

  17. Den danske fødevaresektor

    DEFF Research Database (Denmark)

    Bosselmann, Aske Skovmand; Gylling, Morten

    2012-01-01

    Den danske fødevaresektor har et højt niveau for så vidt angår miljø og bæredygtighed. Der kan være et potentiale for vækst og beskæftigelse i at bruge dette relativt høje niveau til at give danske virksomheder adgang til attraktive eksportmarkeder, hvor fødevarer, der er dokumenteret bæredygtige...

  18. Optimisation of profits; Den Gewinn optimieren

    Energy Technology Data Exchange (ETDEWEB)

    Seltmann, T.

    1998-09-01

    In spite of the new taxation regulations for photovoltaic energy conversion systems, operators of PV systems can make profits. The contribution presents concrete examples. (orig.) [Deutsch] Durch den Verzicht auf die Kleinunternehmerregelung wird der Betreiber einer PV-Anlage zwar umsatzsteuerpflichtig. Wie dargestellt wird, kann er trotzdem auf Dauer einen Gewinn erwirtschaften. In diesem Beitrag wird anhand konkreter Beispiele erlaeutert, was der Betreiber tun muss, um seinen Anlagenertrag steuerlich korrekt und moeglichst gewinnbringend beim Fiskus anzugeben. (orig.)

  19. Den kontraktstyrede og kontraktstyrende offentlige sektor

    DEFF Research Database (Denmark)

    Schulze, Christiane; Greve, Carsten

    for levering af en service eller et produkt (Domberger 1998:12). Kontrakter er dog ikke bare en entydig formel aftale, der forstås på samme måde af enhver aktør. Tværtimod er kontrakter også afhængige af læsernes perspektiv såvel som omgivelsens normer, traditioner og legale rammer. Den er derved ikke...

  20. Open Access og Den Bibliometriske Forskningsindikator

    DEFF Research Database (Denmark)

    Dorch, Bertil

    2011-01-01

    I sine "Anbefalinger til implementering af Open Access i Danmark" foreslår det nationale Open Access Udvalget blandet andet, at Den Bibliometriske Forskningsindikator (BFI) bør koordineres med en national Open Access-politik. I dette paper, der er baseret på et blogindlæg, fremfører forfatteren...... fire grunde til, hvorfor han synes det er en dårlig idé at koble Open Access til BFI....

  1. Den gode præsentation

    DEFF Research Database (Denmark)

    Greve, Linda

    Den gode præsentation giver det teoretiske fundament og de praktiske værktøjer, der skal til for at skabe gode præsentationer, der virker efter hensigten. Læren er, at gode præsentationer kommer af grundig og metodisk velovervejet forberedelse – og af modet til at gå i relation med lytterne. Bogen...

  2. Open Access og Den Bibliometriske Forskningsindikator

    DEFF Research Database (Denmark)

    Dorch, Bertil

    2011-01-01

    I sine "Anbefalinger til implementering af Open Access i Danmark" foreslår det nationale Open Access Udvalget blandet andet, at Den Bibliometriske Forskningsindikator (BFI) bør koordineres med en national Open Access-politik. I dette paper, der er baseret på et blogindlæg, fremfører forfatteren...... fire grunde til, hvorfor han synes det er en dårlig idé at koble Open Access til BFI....

  3. Globale Entwikclung als Lernbereich in den Naturwissenschaften

    OpenAIRE

    Härtig, Hendrik; Bernholt, Sascha; Schroeter, Burkhard

    2014-01-01

    Mit dem Orientierungsrahmen für den Lernbereich Globale Entwicklung wurden Anregungen gegeben, die Themen nachhaltige Entwicklung und globale Entwicklung im Unterricht in allen Schulfächern aufzugreifen. Die drei naturwissenschaftlichen Schulfächer Biologie, Chemie und Physik haben sich bislang sehr unterschiedlich auf das Thema eingelassen. In der Biologiedidaktik finden sich sowohl Forschungsarbeiten als auch Unterrichtsvorschläge; für Chemie und insbesondere Physik existieren hingegen nur ...

  4. Construindo um Densímetro

    Directory of Open Access Journals (Sweden)

    Ricetti Rodrigo

    2002-01-01

    Full Text Available Para fins didáticos, é apresentada uma maneira de construir um densímetro, aparelho utilizadopara medir a densidade de fluidos. um aparato fácil de ser construído e muito simples de serutilizado. Sua principal vantagem sobre os densímetros que comercialmente encontramos, é a suacapacidade de medir a densidade de quaisquer líquidos, operando em qualquer faixa de densidade. Outra vantagem que apresenta, é a possibilidade de fazer uma medição relativa entre quaisquerlíquidos, não fazendo apenas a medição relativa à densidade da água. Desta maneira, pode-semedir, por exemplo, a densidade do mercúrio em relação ao éter, com este instrumento. Nota-seque, desta maneira, com apenas um instrumento determina-se a densidade de qualquer líquido, nãosendo necessário dispor-se de densímetros que operem em diversas faixas de densidade, como é ocaso dos instrumentos encontrados comercialmente.

  5. Simultaneous Occurrence of Dens Invaginatus and Fusion

    Directory of Open Access Journals (Sweden)

    Amit Mhapuskar

    2013-01-01

    Full Text Available Although Dens invaginatus and fusion are well-known and well established dental anomalies, they are rarely seen in supernumerary teeth. In this article, simultaneous occurrence of Dens invaginatus and fusion between maxillary lateral incisor and a supernumerary tooth is described. Dens invaginatus is clinically significant due to the possibility of the pulpal involvement; pulpitis, necrotic pulps and chronic periapical lesions are often associated with this anomaly without clinical symptoms. Fusion has a negative impact on the aesthetics, especially when it occurs in maxillary anterior teeth. It is difficult to clinically make differential diagnosis between fused teeth and geminated teeth, especially when these anomalies take place together with hypodontia or supernumerary tooth. It has been found that sequel of such teeth may result in delayed eruption, ectopic eruption or even impaction of permanent teeth; hence proper diagnosis by clinical and radiographic methods and intervention at appropriate time is of paramount importance. The accurate knowledge of variations in morphology of tooth and pulp cavity greatly assists the dentist in planning successful treatment options.

  6. Development of CaO-swelling cements for cementing of natural gas underground storage wells in field trial (temperature range {<=} 60 C) and composition of CaO and MgO-swelling cements for a temperature range between 60 C-105 C. Final report; Entwicklung von CaO-Quellzementen fuer die Zementation von Erdgasspeicherbohrungen im Feldversuch (Temperaturbereich {<=} 60 C) sowie Formulierung von CaO- und MgO-Quellzementen fuer den Einsatz im Temperaturbereich 60 C-105 C. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Ghofrani, R.; Gheorghiu, A.S.; Radu, G.; Rogojinoiu, E.; Stan, M.; Miehe, H.

    2000-11-01

    of their investigations regarding the longterm stability were positively assessed. (orig.) [German] Die Untersuchungen im Rahmen dieses Projektes bauen auf den am ITE bereits durchgefuehrten Arbeiten, insbesondere DGMK-Forschungsvorhaben 444-1, 444-2 und 444-3 auf, und sollen zu einer Praxiserprobung ausgewaehlter CaO-Quellzementrezepturen fuehren. Wesentliche Untersuchungsgroessen sind das HPHT-Konsistenzverhalten, das HPHT-Ausdehnungsverhalten und das Langzeitstabilitaetsverhalten von CaO-Quellzementen unter bohrlochaehnlichen Bedingungen. Dabei wird der Quellzement mit dem ITE-Equipment in Korrelation zu den Praxisanmachmethoden angesetzt; der Quellzementschlamm wird anschliessend in der ITE-Zementschlammzirkulationsanlage entsprechend den Bohrlochbedingungen scher- und temperaturbelastet; anlagenbedingt wird die Druckbelastung auf max. 15 [MPa] beschraenkt. Der in der ITE-Zirkulationsanlage entsprechend den Bohrlochbedingungen belastete Zementschlamm wird anschliessend auf das HPHT-Konsistenz- und HPHT-Ausdehnungsverhalten hin untersucht. Hinsichtlich des Langzeitstabilitaetsverhaltens wird der in der Zirkulationsanlage behandelte Quellzementschlamm unter entsprechenden pT-Bedingungen autoklavengelagert. Nach der Evakuierung aus den Autoklaven erfolgt die Messung der Druckfestigkeit, der Haftscherfestigkeit und der Systempermeabilitaet der Proben. Anhand der unter gleichen Versuchsbedingungen gemessenen Eigenschaften einer CaO-Referenzquellzementrezeptur konnte die ITE-Anmachmethode mit den gaengigen Praxisanmachmethoden LPHM, LPRM und HPRM korreliert werden; die Angleichung der ITE-Anmachmethode an die fuer die entsprechende Zementation geplante Praxisanmachmethode soll sicherstellen, dass die im Labor ermittelten Eigenschaften des Quellzementes praxisrelevant sind. (orig.)

  7. The effects of leaf area density variation on the collection efficiency of black carbon in the size range of ultrafine particles (UFP)

    Science.gov (United States)

    Huang, C.; Lin, M.; Khlystov, A.; Katul, G. G.

    2012-12-01

    Black carbon is mainly produced in the ultra-fine particle (UFP) size range of 10-100 nm from combustion processes and is now receiving significant attention given its role in global and regional climate change, cloud physics, human health and respiratory related diseases. Likewise, the role of vegetated surfaces in removing UFP is drawing increased attention, prompting interest in the relationship between leaf area density and UFP collection efficiency. Here, carbonaceous particles, mainly black carbon, were generated by burning candles during "sooting burn" to explore the effects of leaf area density (LAD) variation on the collection efficiency of black carbon in the UFP size range. Three scenarios were explored in a wind tunnel: (1) Juniperus Chinensis branches that are uniformly distributed within the test section; (2) LAD that is linearly increasing with downwind distance and (3) LAD that is decreasing with downwind distance. The total leaf area index (LAI) was maintained constant in all three cases. Particle concentrations were measured at multiple locations within the vegetated volume for a range of sizes of UFP (12.6-102 nm) using Scanning Mobility Particle Sizer (SMPS). The measured concentration can be used to evaluate the performance of a size-resolving model that couples the turbulent flow field and the collection efficiency for the variable LAD. The model assumes that (i) the mean longitudinal momentum balance is controlled only by the interplay between drag force and the pressure gradient, and (ii) the dominant collection mechanism for UFP is Brownian diffusion. Hence, other collection mechanisms such as inertial impaction, interception and phoretic effects are negligible. Good agreement was found between the model calculations of the UFP collection efficiency by the vegetation and the wind tunnel measurements for all three cases and across a wide range of wind speeds and particle size. It was shown that variations in leaf area density lead to a

  8. The short-term outcome of the modified Sauvé-Kapandji procedure regarding range of motion, carpal bone translation and bony shelf size.

    Science.gov (United States)

    Toyama, Shogo; Tamai, Kazuo; Sakamoto, Atsuto; Hirashima, Toshiko

    2011-02-01

    The Sauvé-Kapandji (S-K) procedure is a common treatment for rheumatoid wrists, but in some cases severe bone destruction makes this operative modality difficult to perform, while also resulting in a poor outcome. A modified S-K procedure for these wrists has been reported, but the clinical outcomes of the modified procedure are unclear. This study evaluated 24 wrists in 20 patients who underwent the modified S-K procedure. The mean follow-up period was 34.5 months. The clinical assessments were range of motion, carpal bone translation and bony shelf size. The range of motion and carpal bone translation were similar to those produced by the S-K procedure. In regard to bony shelf size, wrists with an excessively large bony shelf tended to have a progression of carpal bone translation toward the palmar direction due to the residual malposition of the ECU tendon. The modified S-K procedure appears to be a safe and effective surgical alternative for the treatment of severely destroyed rheumatoid wrists. Although the modified procedure allows for the adjustment of the bony shelf size, it should not be used with wrists that have an excessively large bony shelf.

  9. Dens evaginatus and dens invaginatus in a double tooth: A rare case report

    Directory of Open Access Journals (Sweden)

    Gaurav Sharma

    2015-01-01

    Full Text Available The presence of dens invaginatus (DI and dens evaginatus (DE on same tooth is a rare phenomenon. However, when these dental anomalies occur on a double tooth, it becomes an extremely rare phenomenon. The authors report a rare case of DI and DE on fused permanent maxillary central incisor with supernumerary tooth in a 40-year-old male. The present article also focuses on the differentiating fusion from gemination and also reviews preventive and management strategies for tooth with complex dental anatomy.

  10. Size effect of strong-coupled superconducting In{sub 2}Bi nanoparticles: An investigation of short-range electron phonon coupling

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Po-Yu; Gandhi, Ashish Chhaganlal; Wu, Sheng Yun, E-mail: sywu@mail.ndhu.edu.tw [Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan (China)

    2015-05-07

    We report the influence of the nanosized effect on the superconducting properties of bimetallic In{sub 2}Bi nanoparticles. In this study, the temperature- and applied magnetic field-dependence of the magnetization were utilized to investigate the electron-phonon coupling effect while controlling particle sizes 〈d〉 from 21(2) to 42(5) nm. As the particle size decreases, the electron-phonon constant λ{sub EP} decreases rapidly, signaling the short-range electron-phonon coupling effect which acts to confine the electrons within a smaller volume, thereby giving rise to a higher superconducting transition temperature T{sub C}. An enhanced superconducting transition was observed from the temperature dependence of magnetization, revealing a main diamagnetic Meissner state below T{sub C} ∼ 5.72(5) K for 〈d〉 = 31(1) nm In{sub 2}Bi nanoparticles. The variation of the T{sub C} is very sensitive to the particle size, which might be due to crystallinity and size uniformity of the samples. The electron-phonon coupling to low lying phonons is found to be the leading mechanism for the observed strong-coupling superconductivity in the In{sub 2}Bi system.

  11. A laboratory study of the performance of the handheld diffusion size classifier (DiSCmini) for various aerosols in the 15-400 nm range.

    Science.gov (United States)

    Bau, S; Zimmermann, B; Payet, R; Witschger, O

    2015-02-01

    In addition to chemical composition, particle concentration and size are among the main parameters used to characterize exposure to airborne ultrafine or nanoparticles. To assess occupational inhalation exposure, real-time instruments are recommended in recent strategies published. Among portable devices for personal exposure assessment in the workplace, DiSCmini (Matter Aerosol AG, Switzerland) has been identified as a potential candidate with its capacity to measure the airborne nanoparticle concentration and average particle size with good time-resolution. Monodisperse and polydisperse test nanoaerosols of varying compositions and morphologies were produced in the laboratory using the CAIMAN facility. These aerosols covered a range of particle sizes between 15 and 400 nm and number concentrations from 700 to 840,000 cm(-3). The aerosols were used to investigate the behavior of DiSCmini, comparing experimental data to reference data. In spite of a slight tendency to underestimate particle size, all particle diameters, number concentrations and surface area concentrations measured were in the same order of magnitude as reference data. Furthermore, no significant effect due to particle composition or morphology was noted.

  12. Experimental determination of the steady-state charging probabilities and particle size conservation in non-radioactive and radioactive bipolar aerosol chargers in the size range of 5–40 nm

    Energy Technology Data Exchange (ETDEWEB)

    Kallinger, Peter, E-mail: peter.kallinger@univie.ac.at; Szymanski, Wladyslaw W. [University of Vienna, Faculty of Physics (Austria)

    2015-04-15

    Three bipolar aerosol chargers, an AC-corona (Electrical Ionizer 1090, MSP Corp.), a soft X-ray (Advanced Aerosol Neutralizer 3087, TSI Inc.), and an α-radiation-based {sup 241}Am charger (tapcon & analysesysteme), were investigated on their charging performance of airborne nanoparticles. The charging probabilities for negatively and positively charged particles and the particle size conservation were measured in the diameter range of 5–40 nm using sucrose nanoparticles. Chargers were operated under various flow conditions in the range of 0.6–5.0 liters per minute. For particular experimental conditions, some deviations from the chosen theoretical model were found for all chargers. For very small particle sizes, the AC-corona charger showed particle losses at low flow rates and did not reach steady-state charge equilibrium at high flow rates. However, for all chargers, operating conditions were identified where the bipolar charge equilibrium was achieved. Practically, excellent particle size conservation was found for all three chargers.

  13. Size-dependent modulation of graphene oxide-aptamer interactions for an amplified fluorescence-based detection of aflatoxin B1 with a tunable dynamic range.

    Science.gov (United States)

    Zhang, JingJing; Li, Zengmei; Zhao, Shancang; Lu, Yi

    2016-06-20

    Aflatoxin B1 (AFB1) is a common toxin found in many foods. While AFB1 sensors have been reported, few studies have shown amplified detection with tunable dynamic ranges. We herein report a simple and highly sensitive amplified aptamer-based fluorescent sensor for AFB1, which relies on the ability of nano-graphene oxide (GO) to protect aptamers from nuclease cleavage for amplified detection and on the nanometer size effect of GO to tune the dynamic range and sensitivity. The assay was performed by simply mixing the carboxyl-X-rhodamine (ROX)-labeled AFB1 aptamer, the GO, the nuclease, and the AFB1 samples. Modulating the size of the GO nanosheet resulted in three dynamic ranges, i.e., 12.5 to 312.5 ng mL(-1), 1.0 to 100 ng mL(-1), and 5.0 to 50 ng mL(-1), with corresponding limits of detection of 10.0 ng mL(-1), 0.35 ng mL(-1) and 15.0 ng mL(-1), respectively. The sensor was highly selective against other aflatoxins and common molecules in foods, and its performance was verified in corn samples spiked with known concentration of AFB1.

  14. Hydration free energy of hard-sphere solute over a wide range of size studied by various types of solution theories

    Directory of Open Access Journals (Sweden)

    N.Matubayasi

    2007-12-01

    Full Text Available The hydration free energy of hard-sphere solute is evaluated over a wide range of size using the method of energy representation, information-theoretic approach, reference interaction site model, and scaled-particle theory. The former three are distribution function theories and the hydration free energy is formulated to reflect the solution structure through distribution functions. The presence of the volume-dependent term is pointed out for the distribution function theories, and the asymptotic behavior in the limit of large solute size is identified. It is indicated that the volume-dependent term is a key to the improvement of distribution function theories toward the application to large molecules.

  15. Three-dimensional carbon foam supported tin oxide nanocrystallites with tunable size range: Sulfonate anchoring synthesis and high rate lithium storage properties

    Science.gov (United States)

    Ma, Yue; Asfaw, Habtom Desta; Edström, Kristina

    2015-10-01

    The development of a free-standing electrode with high rate capability requires the realization of facile electrolyte percolation, fast charge transfer at the electrode-electrolyte interface as well as the intimate electrical wiring to the current collector. Employing a sulfonated high internal phase emulsion polymer (polyHIPE) as the carbon precursor, we developed a free-standing composite of carbon foam encapsulated SnO2 nanocrystallites, which simultaneously satisfies the aforementioned requirements. When directly evaluated in the pouch cell without using the binder, carbon additive or metallic current collector, the best performing composite exhibits a good rate performance up to 8 A g-1 and very stable cyclability for 250 cycles. This cycling performance was attributed to the synergistic coupling of hierarchical macro/mesoporous carbon foam and SnO2 nanocrystals with optimized size range. Postmortem characterizations unveiled the significant influence of subtle size variation of oxides on the electrochemical performance.

  16. Decrease in the CGG{sub n} trinucleotide repeat mutation of the fragile X syndrome to normal size range during paternal transmission

    Energy Technology Data Exchange (ETDEWEB)

    Vaeisaenen, M.L.; Haataja, R.; Leisti, J. [Oulu Univ. Hospital (Finland)

    1996-09-01

    The fragile X syndrome, the most common inherited form of mental retardation, is caused by the expansion of a CGG{sub n} trinucleotide repeat in the FMR-1 gene. Although the repeat number usually increases during transmission, few cases with reduction of an expanded CGG{sub n} repeat back to the normal size range have been reported. We describe for the first time a family in which such reduction has occurred in the paternal transmission. The paternal premutation ({Delta} = 300 hp) was not detected in one of the five daughters or in the son of this daughter, although he had the grandpaternal RFLP haplotype. Instead, fragments indicating the normal CGG{sub n} repeat size were seen on a Southern blot probed with StB12.3. PCR analysis of the CGG{sub n} repeat confirmed this; in addition to a maternal allele of 30 repeats, an allele of 34 repeats was detected in the daughter and, further, in her son. Sequencing of this new allele revealed a pure CGG{sub n} repeat configuration without AGG interruptions. No evidence for a somatic mosaicism of a premutation allele in the daughter or a normal allele in her father was detected when investigating DNA derived from blood lymphocytes and skin fibroblasts. Another unusual finding in this family was lack of the PCR product of the microsatellite marker RS46 (DXS548) in one of the grandmaternal X chromosomes, detected as incompatible inheritance of RS46 alleles. The results suggest an intergenerational reduction in the CGG{sub n} repeat from premutation size to the normal size range and stable transmission of the contracted repeat to the next generation. However, paternal germ-line mosaicism could not be excluded as an alternative explanation for the reverse mutation. 37 refs., 4 figs.

  17. Control of multicellular development by the physically interacting deneddylases DEN1/DenA and COP9 signalosome.

    Directory of Open Access Journals (Sweden)

    Martin Christmann

    Full Text Available Deneddylases remove the ubiquitin-like protein Nedd8 from modified proteins. An increased deneddylase activity has been associated with various human cancers. In contrast, we show here that a mutant strain of the model fungus Aspergillus nidulans deficient in two deneddylases is viable but can only grow as a filament and is highly impaired for multicellular development. The DEN1/DenA and the COP9 signalosome (CSN deneddylases physically interact in A. nidulans as well as in human cells, and CSN targets DEN1/DenA for protein degradation. Fungal development responds to light and requires both deneddylases for an appropriate light reaction. In contrast to CSN, which is necessary for sexual development, DEN1/DenA is required for asexual development. The CSN-DEN1/DenA interaction that affects DEN1/DenA protein levels presumably balances cellular deneddylase activity. A deneddylase disequilibrium impairs multicellular development and suggests that control of deneddylase activity is important for multicellular development.

  18. Finansiell risikostyring i den amerikanske flybransjen

    OpenAIRE

    Orleanski, Anna Karolina; Schulte, André Evensen

    2010-01-01

    Denne oppgaven tar for seg finansiell risikostyring i den amerikanske flybransjen, med hovedfokus på sikring av drivstoff. Drivstoff har historisk stått for 20-30 prosent av flyselskapenes driftskostnader, og høy volatilitet i drivstoffprisen gjør at mange sikrer råvaren. Vi undersøker om finansiell risikostyring bidrar til økt selskapsverdi, med hovedfokus på drivstoffprissikring, men inkluderer også valuta- og rentesikring der det er mulig. Studien baseres på offentlig selskapsinformasjon f...

  19. Den teoretiske udvikling af Supply Chain Strategimodeller

    DEFF Research Database (Denmark)

    Arvad Johansen, Jens

    2011-01-01

    Denne artikel beskriver med udgangspunkt i artikler og virksomhedseksempler udviklingen inde for supply chain strategimodeller. Ved hjælp af tidligere udviklede koncepter besvares spørgsmålet: “Hvad er den rette supply chain for mine produkter?”. Virksomhedseksempler beskriver, hvordan supply chain...... segmentering via postponement-princippet, har givet mærkbare forbedringer. Det beskrives endvidere, hvordan produkternes livscyklus påvirker valget af supply chain design. Begrebet Demand Chain Management( DCM), hvormed strategimodeller bruger klassiske marketingelementer sammen med Supply Chain Management...

  20. Zu den on Emona und Ljubljana

    Directory of Open Access Journals (Sweden)

    Jaroslav Šašel

    1984-12-01

    Full Text Available Die Bildungssilbe -ona wurde in übernommenen ON von den Slawen regelmässig auf -in umgebildet (Salona-Solin. Dieser Gruppe wird vom Autor auch die Form Atamine beigezählt (für Emona, Anon. Ravenn. 4.20, die infolge einer Diskontinuität in Vergessenheit geriet. Im Bereich derselben Siedlungsstelle taucht später der ON Ljubljana auf, dessen Bildungssilbe -ana (wie in ON Fažana, Sežana auf lokales Bestehen eines sprachlich vorslawischen Elements hindeutet. Lit. und Beispiele s. im Text oben.

  1. Realization of wide size range 1D ZnO micro/nano rods for versatile micro/nano devices by controlled seed layer thickness

    Science.gov (United States)

    Sun, Jingchang; Bian, Jiming; Chen, Liansong; Wang, Yuxin; Gong, Yu; Li, Yang; Liu, Kuichao; Chang, Cheng; Li, Ming; Du, Guotong

    2013-07-01

    We report on the effect of seed layers thickness on the synthesis of one dimensional (1D) ZnO rods using chemical bath deposition method. This procedure allows us to control the length and diameter of 1D ZnO rods in a large size range by modifying the ZnO seed layer thickness. With the increase in thickness of the seed layer, the length of the 1D ZnO rods ranges from 13.1 μm to 2.1 μm, and the diameter varies from 2.4 μm to 102 nm, meanwhile the laying 1D ZnO rods standup gradually. Photoluminescence measurements indicate that the near band edge emission of the 1D ZnO rods blueshift to higher energy direction with the increasing seed layers thickness.

  2. Dingoes at the Doorstep: Home Range Sizes and Activity Patterns of Dingoes and Other Wild Dogs around Urban Areas of North-Eastern Australia.

    Science.gov (United States)

    McNeill, Alice T; Leung, Luke K-P; Goullet, Mark S; Gentle, Matthew N; Allen, Benjamin L

    2016-08-16

    Top-predators around the world are becoming increasingly intertwined with humans, sometimes causing conflict and increasing safety risks in urban areas. In Australia, dingoes and dingo×domesticdoghybridsarecommoninmanyurbanareas,andposeavarietyofhumanhealth and safety risks. However, data on urban dingo ecology is scant. We GPS-collared 37 dingoes in north-easternAustraliaandcontinuouslymonitoredthemeach30minfor11-394days. Mostdingoes were nocturnal, with an overall mean home range size of 17.47 km2. Overall mean daily distance travelled was 6.86 km/day. At all times dingoes were within 1000 m of houses and buildings. Home ranges appeared to be constrained to patches of suitable vegetation fragments within and around human habitation. These data can be used to reallocate dingo management effort towards mitigating actual conflicts between humans and dingoes in urban areas.

  3. Den danske FN-bataljon i den ikke anerkendte stat Republika Srpska Krajina, 1992-1995

    DEFF Research Database (Denmark)

    Brink Rasmussen, Jakob

    2014-01-01

    Artiklen beskriver og analyserer en dansk FN-styrkes erfaringer med fredsbevarende operationer i forbindelse med Kroatiens løsrivelse fra det tidligere Jugoslavien. Den følger de næste års konflikt med de etniske serbere, som i perioden 1992-1995 forsøgte at opbygge og fastholde deres egen stat i...

  4. Chemical composition and aerosol size distribution of the middle mountain range in the Nepal Himalayas during the 2009 pre-monsoon season

    Directory of Open Access Journals (Sweden)

    P. Shrestha

    2010-06-01

    Full Text Available Aerosol particle number size distribution and chemical composition were measured at two low altitude sites, one urban and one relatively pristine valley, in Central Nepal during the 2009 pre-monsoon season (May–June. This is the first time that aerosol size distribution and chemical composition were measured simultaneously at lower elevation in the Middle Himalayan region in Nepal. The aerosol size distribution was measured using a Scanning Mobility Particle Sizer (SMPS, 14~340 nm, and the chemical composition of the filter samples collected during the field campaign was analyzed in the laboratory. Teflon membrane filters were used for ion chromatography (IC and water-soluble organic carbon and nitrogen analysis. Quartz fiber filters were used for organic carbon and elemental carbon analysis. Multi-lognormal fits to the measured aerosol size distribution indicated a consistent larger mode around 100 nm which is usually the oldest, most processed background aerosol. The smaller mode was located around 20 nm, which is indicative of fresh but not necessarily local aerosol. The diurnal cycle of the aerosol number concentration showed the presence of two peaks (early morning and evening, during the transitional period of boundary layer growth and collapse. The increase in number concentration during the peak period was observed for the entire size distribution. Although the possible contribution of local emissions in size ranges similar to the larger mode cannot be completely ruled out, another plausible explanation is the mixing of aged elevated aerosol in the residual layer during the morning period as suggested by previous studies. Similarly, the evening time concentration peaks when the boundary layer becomes shallow concurrent with increase in local activity. A decrease in aerosol number concentration was observed during the nighttime with the development of cold (downslope mountain winds that force the low level warmer air in the valley to

  5. Konservatismen og den højreradikale terror

    DEFF Research Database (Denmark)

    2011-01-01

    Den norske højreekstremist Anders Behring Breiviks terror mod det norske samfund har herhjemme ledt til en voldsom debat om blandt andet forbindelsen mellem tonen i debatten og terrorangrebet og forholdet mellem den siden 2001 meget omtalte kulturkonservatisme og Anders Breiviks terrorhandling....... Essayet Konservatismen og den højreradikale terror forsøger dels at skabe klarhed over fronterne i debatten, dels at rette en kritik mod såvel tendensen til at afskrive handlingen som uforståelig som af tendensen til at slå den bredere højrefløjs kritik af multikulturalismen i hartkorn med Breiviks...

  6. Diagnoseforsinkelser i almen praksis II: Dilemmaer i den diagnostiske proces

    DEFF Research Database (Denmark)

    Wentzer, Helle Sofie; Andersen, Rikke Sand; Bundgaard, Henning

    2016-01-01

    Sundhedspolitisk er der fokus på diagnoseforsinkelser. Det er der også i forskningen og i klinisk praksis. Artiklen er den anden af to, der ser på diagnoseforsinkelser og de overvejelser og dilemmaer, der indgår i den diagnostiske proces. Mens den første artikel fokuserede på forsinkelsesskabende....... Workshoppen tog afsæt i to patientcases med diagnoseforsinkelser med henblik på at ”trigge” deltagernes erfaringer med strukturelle problematikker i egen praksis. Resultatet er en beskrivelse af en række dilemmaer i den diagnostiske proces....

  7. Mozart, Karl Barth, og den kristne troslæren

    DEFF Research Database (Denmark)

    Petersen, Nils Holger

    2010-01-01

    En diskussion af Karl Barths teologiske brug af W.A.Mozart i den kirchliche Dogmatik med kontekstuel inddragelse af en til en vis grad tilsvarende overordnet diskussion af Mozart, skrevet af en samtidig musiker, den fremtrædende Mozart-dirigent Ferenc Fricsay. ......En diskussion af Karl Barths teologiske brug af W.A.Mozart i den kirchliche Dogmatik med kontekstuel inddragelse af en til en vis grad tilsvarende overordnet diskussion af Mozart, skrevet af en samtidig musiker, den fremtrædende Mozart-dirigent Ferenc Fricsay. ...

  8. Konservatismen og den højreradikale terror

    DEFF Research Database (Denmark)

    2011-01-01

    Den norske højreekstremist Anders Behring Breiviks terror mod det norske samfund har herhjemme ledt til en voldsom debat om blandt andet forbindelsen mellem tonen i debatten og terrorangrebet og forholdet mellem den siden 2001 meget omtalte kulturkonservatisme og Anders Breiviks terrorhandling....... Essayet Konservatismen og den højreradikale terror forsøger dels at skabe klarhed over fronterne i debatten, dels at rette en kritik mod såvel tendensen til at afskrive handlingen som uforståelig som af tendensen til at slå den bredere højrefløjs kritik af multikulturalismen i hartkorn med Breiviks...

  9. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs. uden at uvedkommende kan få adgang til...... følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Undersøgelsen medtager myndighedernes besvarelse af digital post og e-mail, dels for at kunne...... sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen, men ikke...

  10. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    digital postkasse, som borgerne kunne skrive til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs....... uden at uvedkommende kan få adgang til følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Vi har også undersøgt besvarelse af e-mail, dels...... for at kunne sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen...

  11. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper; Andersen, Kim Normann

    2013-01-01

    til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs. uden at uvedkommende kan få adgang til...... følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Undersøgelsen medtager myndighedernes besvarelse af digital post og e-mail, dels for at kunne...... sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen, men ikke...

  12. Impact of real world driving pattern and all-electric range on battery sizing and cost of plug-in hybrid electric two-wheeler

    Science.gov (United States)

    Amjad, Shaik; Rudramoorthy, R.; Neelakrishnan, S.; Varman, K. Sri Raja; Arjunan, T. V.

    2011-03-01

    This study addresses the impact of an actual drive pattern on the sizing and cost of a battery pack for a plug-in hybrid electric two-wheeler. To estimate the daily average travel distance in fixing the all-electric range of two wheelers, a study conducted in Coimbatore city is presented. A MATLAB simulation model developed for estimating the energy and power requirements in an all-electric strategy using an Indian driving cycle (IDC) and a real-world driving pattern are discussed. The simulation results reveal the impact of the real-world driving pattern on energy consumption and also the influence of all-electric range in sizing the battery pack. To validate the results, a plug-in hybrid electric two-wheeler developed by modifying a standard two-wheeler has been tested on the road with the help of the IDC simulator kit. An annual battery cost comparison shows that nickel-metal-hydride batteries are more economical and suitable for in plug-in hybrid electric two-wheelers.

  13. Electro-hydrodynamic generation of monodisperse nanoparticles in the sub-10 nm size range from strongly electrolytic salt solutions: governing parameters of scaling laws

    Energy Technology Data Exchange (ETDEWEB)

    Maisser, Anne, E-mail: a.maisser@tudelft.nl [Delft University of Technology (Netherlands); Attoui, Michel B. [LISA, UMR CNRS University Paris Est Creteil, University Paris-Diderot (France); Ganan-Calvo, Alfonso M. [Universidad de Sevilla, ESI (Spain); Szymanski, Wladyslaw W. [University of Vienna, Faculty of Physics (Austria)

    2013-01-15

    A charge reduced electro-hydrodynamic atomization (EHDA) device has been used to generate airborne salt clusters in the sub 10 nm size range. The focus of this study on that specific sub-micron range of electrospray droplets with relatively high electrical conductivities and permittivities aims to address the still existing controversy on the scaling laws of electrosprayed droplet diameters. In this study different concentrations of sodium chloride and potassium chloride-both show strong electrolytic behavior-have been electrosprayed from solutions in pure water, or from aqueous ammonium acetate buffer liquids of varying concentrations. The dry residue salt cluster diameter generated by the EHDA process have been measured using a differential mobility analyzer. The initial droplet diameter has been determined indirectly from the measured particle size following the steps of Chen et al. (J Aerosol Sci 26:963-977, 1995). Results have been compared to existing scaling laws valid for direct droplet measurements. They can be interpreted concisely on the basis of a realistic hypothesis on possible electrochemical effects taking place and affecting the droplet and thus nanoparticle formation in EHDA. The hypothesis developed in this work and the comparison with the experimental results are shown and discussed in the manuscript.

  14. Evaluation of the size segregation of elemental carbon (EC) emission in Europe: influence on the simulation of EC long-range transportation

    Science.gov (United States)

    Chen, Ying; Cheng, Ya-Fang; Nordmann, Stephan; Birmili, Wolfram; Denier van der Gon, Hugo A. C.; Ma, Nan; Wolke, Ralf; Wehner, Birgit; Sun, Jia; Spindler, Gerald; Mu, Qing; Pöschl, Ulrich; Su, Hang; Wiedensohler, Alfred

    2016-02-01

    Elemental Carbon (EC) has a significant impact on human health and climate change. In order to evaluate the size segregation of EC emission in the EUCAARI inventory and investigate its influence on the simulation of EC long-range transportation in Europe, we used the fully coupled online Weather Research and Forecasting/Chemistry model (WRF-Chem) at a resolution of 2 km focusing on a region in Germany, in conjunction with a high-resolution EC emission inventory. The ground meteorology conditions, vertical structure and wind pattern were well reproduced by the model. The simulations of particle number and/or mass size distributions were evaluated with observations at the central European background site Melpitz. The fine mode particle concentration was reasonably well simulated, but the coarse mode was substantially overestimated by the model mainly due to the plume with high EC concentration in coarse mode emitted by a nearby point source. The comparisons between simulated EC and Multi-angle Absorption Photometers (MAAP) measurements at Melpitz, Leipzig-TROPOS and Bösel indicated that the coarse mode EC (ECc) emitted from the nearby point sources might be overestimated by a factor of 2-10. The fraction of ECc was overestimated in the emission inventory by about 10-30 % for Russia and 5-10 % for Eastern Europe (e.g., Poland and Belarus). This incorrect size-dependent EC emission results in a shorter atmospheric life time of EC particles and inhibits the long-range transport of EC. A case study showed that this effect caused an underestimation of 20-40 % in the EC mass concentration in Germany under eastern wind pattern.

  15. A comprehensive photometric study of dynamically evolved small van den Bergh-Hagen open clusters

    CERN Document Server

    Piatti, Andrés E

    2016-01-01

    We present results from Johnson $UBV$, Kron-Cousins $RI$ and Washington $CT_1T_2$ photometries for seven van den Bergh-Hagen (vdBH) open clusters, namely, vdBH\\,1, 10, 31, 72, 87, 92, and 118. The high-quality, multi-band photometric data sets were used to trace the cluster stellar density radial profiles and to build colour-magnitude diagrams (CMDs) and colour-colour (CC) diagrams from which we estimated their structural parameters and fundamental astrophysical properties. The clusters in our sample cover a wide age range, from $\\sim$ 60 Myr up to 2.8 Gyr, are of relatively small size ($\\sim$ 1 $-$ 6 pc) and are placed at distances from the Sun which vary between 1.8 and 6.3 kpc, respectively. We also estimated lower limits for the cluster present-day masses as well as half-mass relaxation times ($t_r$). The resulting values in combination with the structural parameter values suggest that the studied clusters are in advanced stages of their internal dynamical evolution (age/$t_r$ $\\sim$ 20 $-$ 320), possibly...

  16. Patterns of anogenital swelling size and their endocrine correlates during ovulatory cycles and early pregnancy in free-ranging barbary macaques (Macaca sylvanus) of Gibraltar.

    Science.gov (United States)

    Möhle, U; Heistermann, M; Dittami, J; Reinberg, V; Wallner, B; Hodges, J K

    2005-08-01

    In macaques and other cercopithecoid primates, large anogenital swellings (AS) are generally found only in those species in which reproduction is not seasonally restricted. In this respect, the Barbary macaque is unusual because while it shows a marked degree of reproductive seasonality, it also exhibits a striking, exaggerated swelling of the circumanal region and labia. Information on the characteristics of AS in female Barbary macaques is limited in that it is largely based on semiquantitative assessments of swelling size, and there are no data on endocrine parameters associated with AS during ovulatory cycles or early pregnancy. In the present study, we combined quantitative measurements of four swelling size parameters (AS width, height, and depth, and labial width) using a video-imaging technique with fecal estrogen and progestagen determinations in free-ranging females of the Gibraltar Barbary macaque population to 1) characterize the pattern of AS throughout the mating season and early gestation, and 2) examine the relationships among changes in swelling size and endocrine parameters. The patterns of all four swelling parameters correlated significantly with one another, although measures of AS depth and labial width were difficult to obtain. Using the product of AS height and width, the data demonstrate that the occurrence of AS is highly seasonal, with pronounced cyclical changes during the mating season and early pregnancy. Furthermore, the swelling cycles are characterized by progressive size increases from the early to the late follicular phase, in association with an elevated estrogen:progestagen (E:P) ratio, with ovulation occurring during the maximum swelling phase. The results also demonstrated a conspicuous postconception increase in swelling between days 18-30 of gestation. The postconception swellings were on average 80% of the size of that of the conception cycles, and were preceded by a large increase in fecal estrogen levels and the E:P ratio

  17. Anaïs Nin, pornografien og den kvinnelige seksualiteten

    OpenAIRE

    Tronvold, Gry Olsen

    2010-01-01

    Denne studien tar for seg Anaïs Nins samlinger Delta of venus (1977) og Little Birds (1979) I lys av Sigmund Freud argumenterer jeg for at Nins pornografi er metapornografi, som belyser problematiske aspekter ved den kvinnelige seksualiteten. Slik finner jeg belegg for at Nins samlinger er skjønnlitterære og dermed bryter med den konvensjonelle pornografien.

  18. Tegnets tid. Fortid, historie og historicitet efter den sproglige vending

    DEFF Research Database (Denmark)

    Simonsen, Dorthe Gert

    historieskrivningens sandhedsfordring. Her ud fra forskydes det snævre fokus på tegn, tekst og diskurs i den aktuelle historieteoretiske debat til spørgsmål om tid og “radikal historicitet”. Der indhentes eksempler fra nyere kulturhistorisk forskning, især fra den amerikanske New Historicism....

  19. Margaret Thatcher og afslutningen på Den Kolde Krig

    DEFF Research Database (Denmark)

    Sevaldsen, Jørgen

    2010-01-01

    Gennemgang af den britiske premierminister (1979-1990) Margaret Thatchers rolle i forbindelse med Murens fald i 1989. Med dansk perspektiv.......Gennemgang af den britiske premierminister (1979-1990) Margaret Thatchers rolle i forbindelse med Murens fald i 1989. Med dansk perspektiv....

  20. Den Ontologiske Vending i Antropologi og Science and Technology Studies

    DEFF Research Database (Denmark)

    Winthereik, Brit Ross

    2015-01-01

    Formålet med artiklen er at afsøge, hvad videnskabs- og teknologi- studier eller Science and Technology Studies (STS) tilbyder humaniora og samfundsvidenskaberne med det nybrud, der er blevet kaldt den ontologiske vending. Med udgangspunkt i en beskrivelse af den onto- logiske vending i antropologi...

  1. Kvinder og mænd i den offentlige sektor

    DEFF Research Database (Denmark)

    Madsen, Mikkel Bo; Holt, Helle; Jonassen, Anders Bruun

    Denne rapport handler om de karriereveje, som mænd og kvinder følger i forskellige dele af den offentlige sektor, og de karriereveje, de opfatter som mulige. Undersøgelsen viser blandt andet, at mænd overalt i den offentlige sektor er tydeligt overrepræsenteret i lederstillinger. Desuden viser de...

  2. Mephisto vor den Richtern – Mephisto before the judges

    Directory of Open Access Journals (Sweden)

    Czarnikow Marie

    2014-08-01

    Full Text Available Mephisto before the judges: The Mephisto trials – how the reader was discovered, and then denied any decision‐making capacity Mephisto vor den Richtern – Von der Entdeckung zur Entmündigung des Lesers in den Mephisto‐Prozessen

  3. Samarbejdets betydning i den ’klassiske udlicitering’

    DEFF Research Database (Denmark)

    Lindholst, Andrej Christian

    2015-01-01

    Hvilken betydning har ’samarbejde’ i kontraktstyringen mellem offentlige myndigheder og private entreprenører inden for de ’klassiske’ udbudsområder? I både den administrative praksis og den politologiske litteratur betragtes en effektiv anvendelse af udlicitering på de klassiske udbudsområder of...

  4. Den alimentære kode - Centralbrasilien, Israel, Helvede

    DEFF Research Database (Denmark)

    Jensen, Hans Jørgen Lundager

    2006-01-01

    Den alimentære kode som centralt antropologisk emne hos Claude Lévi-Strauss og i gammeltestamentlig og senere kristen mytologi......Den alimentære kode som centralt antropologisk emne hos Claude Lévi-Strauss og i gammeltestamentlig og senere kristen mytologi...

  5. Laika – den første hund i rummet

    DEFF Research Database (Denmark)

    Alstrup, Aage Kristian Olsen

    2013-01-01

    DETTE ER DEN FØRSTE ARTIKEL I EN SERIE OM FORSØGSDYRENES ROLLE I RUMFORSKNINGEN. DYRENE SPILLEDE EN CENTRAL ROLLE I RUSSERNES OG AMERIKANERNES RUMKAPLØB UNDER DEN KOLDE KRIG. I DAG BRUGES DYRENE TIL MEDICINSKE FORSØG UDFØRT I VÆGTLØS TILSTAND. FØRSTE ARTIKEL HANDLER OM GADEKRYDSET LAIKA, SOM BLEV...

  6. Empirisme, rationalisme og den moralske følelse

    DEFF Research Database (Denmark)

    Nielsen, Carsten Fogh

    2003-01-01

    Sammenlignende diskussion af David Humes og Immanuel Kants syn på følelsernes rolle for den moralske dom......Sammenlignende diskussion af David Humes og Immanuel Kants syn på følelsernes rolle for den moralske dom...

  7. Synteserapport & 1. Indenrigspolitiske forhold i Den Islamiske Republik Iran

    DEFF Research Database (Denmark)

    Pedersen, Claus Valling

    Rapport til Udenrigsministeriet om de indenrigspolitiske forhold i Iran samt et syntese af hele rapporten: Iran som regional og international medspiller i den globale verdensorden samt Irans indenrigspolitik......Rapport til Udenrigsministeriet om de indenrigspolitiske forhold i Iran samt et syntese af hele rapporten: Iran som regional og international medspiller i den globale verdensorden samt Irans indenrigspolitik...

  8. Wider den Skeptizismus Contrary to Skepticism

    Directory of Open Access Journals (Sweden)

    Kathrin Hönig

    2005-03-01

    Full Text Available Die feministische Wissenschaftskritik leide seit einiger Zeit unter einer problematischen erkenntnistheoretischen Wende; so lautet die Diagnose von Sharyn Clough. Dabei verfehle sie ihr eigentliches Geschäft, nämlich die Kritik wissenschaftlicher Praxis. Die Konzentration auf erkenntnistheoretische Fragen rufe außerdem einen globalen Skeptizismus auf den Plan, der sich verheerend auf die Glaubwürdigkeit feministischer Erkenntnisansprüche auswirke. Mit einem antirepräsentationalistischen Ansatz soll diesem Problem begegnet werden.Feminist scientific criticism has been suffering for some time under a problematic turn to cognitive theory; such is Sharyn Clough’s diagnosis. The criticism thereby falls short of its actual task: the critique of scientific praxis. In addition, the concentration on questions of cognitive theory makes global skepticism the order of the day, which disastrously affects the believability of feminist cognitive claims. This problem is to be tackled with an anti-representational approach.

  9. Den digitale pædagoguddannelse

    DEFF Research Database (Denmark)

    Pilgaard, Michal; Rasmussen, Jan Erik Røjkjær; Ahm, Jacob Noer

    2016-01-01

    Udviklingsprojektet ”Den digitale pædagoguddannelse” er en samlebetegnelse for en række delprojekter, der alle er udført på tværs af udbudsstederne af pædagoguddannelsen i VIA i 2015. Fælles for projekterne er, at de indeholder konkrete erfaringer med at inddrage digitale medier i...... pædagoguddannelsen, og at de udspringer af en eksperimenterende udforskning af følgende grundlæggende spørgsmål: "Hvordan integrerer vi de digitale medier på en meningsfuld måde i didaktikken på pædagoguddannelsen?" Dertil beskæftiger enkelte af projekterne sig med spørgsmålet om, hvordan vi kvalificerer vores...

  10. Anmeldelse af Claus Friisberg: Ideen om et frit Danmark. Den nationalliberale bevægelses ideologi og politik - især i den formative periode (Varde 2003)

    DEFF Research Database (Denmark)

    Busck, Steen

    2003-01-01

    Anmeldelse af Claus Friisberg: Ideen om et frit Danmark. Den nationalliberale bevægelses ideologi og politik - især i den formative periode (Varde 2003)......Anmeldelse af Claus Friisberg: Ideen om et frit Danmark. Den nationalliberale bevægelses ideologi og politik - især i den formative periode (Varde 2003)...

  11. Effects of diurnal temperature range on adult size and emergence times from diapausing pupae in Papilio glaucus and p.canadensis (Papilionidae)

    Institute of Scientific and Technical Information of China (English)

    J. Mark Scriber; Brittany Sonke

    2011-01-01

    With recent climate warming trends,both the increase in thermal variance (i.e.,diurnal temperature range; DTR) as well as increased mean temperature may impact many different organisms,especially poikilothermic invertebrates.Predictions of insect developmental rates using degree-days (thermal unit accumulations above the developmental base threshold of the insect) are based on daily mean temperatures,regardless of DTR.However,non-linearity and variance in the means and extremes are often ignored.The role of thermal variance (e.g.,daily temperature extremes and DTR) was evaluated experimentally for two swallowtail butterfly sister species using a common day/night photoperiod of 18:6 h photo:scoto-phase and corresponding daytime thermophase and nighttime cryophase periods of 22:22℃ (constant 22℃),24:16℃,and 26:10℃ (all three treatments had the same daily mean and the same degree-day accumulations).Although developmental rates ofpost-diapause pupae were largely unaffected for both species,our results show that sizes in P.canadensis females (but not males) were smaller in the treatments with more variance (26℃:10℃) compared to constant 22℃.Such potentially significant impacts of size reduction in P.canadensis females were not observed in P.glaucus males or females under the same series ofthermo-period treatments.

  12. Particle size measurements in the submicron range by the differential electromobility technique: comparison of aerosols from thermospray, ultrasonic, pneumatic and frit-type nebulizers

    Science.gov (United States)

    Clifford, Robert H.; Tan, Hsiaoming; Liu, Huiying; Montaser, Akbar; Zarrin, Fahimeh; Keady, Patricia B.

    1993-08-01

    The differential electromobility technique was used for the comparison of droplet- and particle-size distributions in the 0.02-0.8 μm range for six nebulization systems often used in inductively coupled plasma (ICP) spectrometry: a thermospray nebulizer coupled to a membrane separator (TNMS); two ultrasonic nebulizers (USNs) used with desolvation; one pneumatic nebulizer (PN) used with and without desolvation; and a frit-type nebulizer. In general, volume concentration (volume of droplets or particles per cubic centimeter of injector gas) increased with NaCl concentration, and it was greater for TNMS followed by USNs compared to other nebulizers. For the desolvated aerosol produced by PN and USN, volume concentration was found to be independent of the temperature (140-180°C) of the heating tube for the desolvation device. As the nebulizer tip temperature in thermospray nebulization was varied from 160 to 240°C, a larger volume concentration of desolvated aerosol was produced. Size distributions shifted towards larger particles with increasing NaCl concentration. The implications of these observations in plasma spectrochemical measurements are discussed.

  13. Characteristics of dimethylaminium and trimethylaminium in atmospheric particles ranging from supermicron to nanometer sizes over eutrophic marginal seas of China and oligotrophic open oceans.

    Science.gov (United States)

    Yu, Peiran; Hu, Qingjing; Li, Kai; Zhu, Yujiao; Liu, Xiaohuan; Gao, Huiwang; Yao, Xiaohong

    2016-12-01

    In this study, we characterized dimethylaminium (DMA(+)) and trimethylaminium (TMA(+)) in size-segregated atmospheric particles during three cruise campaigns in the marginal seas of China and one cruise campaign mainly in the northwest Pacific Ocean (NWPO). An 14-stage nano-MOUDI sampler was utilized for sampling atmospheric particles ranging from 18μm to 0.010μm. Among the four cruise campaigns, the highest concentrations of DMA(+) and TMA(+) in PM10 were observed over the South Yellow Sea (SYS) in August 2015, i.e., 0.76±0.12nmolm(-3) for DMA(+) (average value±standard deviation) and 0.93±0.13nmolm(-3) for TMA(+). The lowest values were observed over the NWPO in April 2015, i.e., 0.28±0.16nmolm(-3) for DMA(+) and 0.22±0.12nmolm(-3) for TMA(+). In general, size distributions of the two ions exhibited a bi-modal pattern, i.e., one mode at 0.01-0.1μm and the other at 0.1-1.8μm. The two ions' mode at 0.01-0.1μm was firstly observed. The mode was largely enhanced in samples collected over the SYS in August 2015, leading to high mole ratios of (DMA(+)+TMA(+))/NH4(+) in PM0.1 (0.4±0.8, median value±standard deviation) and the ions' concentrations in PM0.1 accounting for ~10% and ~40% of their corresponding concentrations in PM10. This implied that (DMA(+)+TMA(+)) likely played an important role in neutralizing acidic species in the smaller particles. Using SO4(2-), NO3(-) and NH4(+) as references, we confirm that the elevated concentrations of DMA(+) and TMA(+) in the 0.01-0.1μm size range were probably real signals rather than sampling artifacts.

  14. Review: Grigoleit, Grit: Integrationsvarianten. Die Hmong in den USA (2008 Buchbesprechung: Grigoleit, Grit: Integrationsvarianten. Die Hmong in den USA (2008

    Directory of Open Access Journals (Sweden)

    Hans-Bernd Zöllner

    2009-07-01

    Full Text Available Review of the monograph: Grigoleit, Grit (2008, Integrationsvarianten. Die Hmong in den USA, Passau: Verlag Karl Stutz, ISBN 978-3-88849-183-2, 250 pages Besprechung der Monographie: Grigoleit, Grit (2008, Integrationsvarianten. Die Hmong in den USA, Passau: Verlag Karl Stutz, ISBN 978-3-88849-183-2, 250 Seiten

  15. Kosmetisk kirurgi og den transformérbare krop -en analyse af den amerikanske tv-serie Nip/Tuck

    DEFF Research Database (Denmark)

    2009-01-01

    En analyse af krops- og kønsiscenesættelser i den amerikanske tv-serie om kosmetisk kirurgi Nip/Tuck......En analyse af krops- og kønsiscenesættelser i den amerikanske tv-serie om kosmetisk kirurgi Nip/Tuck...

  16. Religionsvetenskapen i övergången från den första till den andra moderniteten

    DEFF Research Database (Denmark)

    Ahlin, Lars

    2009-01-01

    Den tyske sociolog Ulrich Beck er optaget af overgangen fra den første til den anden modernitet. Han argumenterer for at denne overgang fører til at sociologiske kategorier som klasse og familie bliver zombie-kategorier. Det er kategorier skabt under den første modernitet men som stadigvæk er i...... brug i dag under den anden modernitet, til trods for at de er levende døde kategorier. I denne artikel argumenters for at kategorier, begreber, brugt inden for religionsvidenskaben, primært religionssociologien, også kan betragtes som zombie-kategorier. De begreber der diskuteres er religiøse...

  17. Green-synthesized silver nanoparticles as a novel control tool against dengue virus (DEN-2) and its primary vector Aedes aegypti.

    Science.gov (United States)

    Sujitha, Vasu; Murugan, Kadarkarai; Paulpandi, Manickam; Panneerselvam, Chellasamy; Suresh, Udaiyan; Roni, Mathath; Nicoletti, Marcello; Higuchi, Akon; Madhiyazhagan, Pari; Subramaniam, Jayapal; Dinesh, Devakumar; Vadivalagan, Chithravel; Chandramohan, Balamurugan; Alarfaj, Abdullah A; Munusamy, Murugan A; Barnard, Donald R; Benelli, Giovanni

    2015-09-01

    Dengue is an arthropod-borne viral infection mainly vectored through the bite of Aedes mosquitoes. Recently, its transmission has strongly increased in urban and semi-urban areas of tropical and sub-tropical regions worldwide, becoming a major international public health concern. There is no specific treatment for dengue. Its prevention and control solely depends on effective vector control measures. In this study, we proposed the green-synthesis of silver nanoparticles (AgNP) as a novel and effective tool against the dengue serotype DEN-2 and its major vector Aedes aegypti. AgNP were synthesized using the Moringa oleifera seed extract as reducing and stabilizing agent. AgNP were characterized using a variety of biophysical methods including UV-vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and sorted for size categories. AgNP showed in vitro antiviral activity against DEN-2 infecting vero cells. Viral titer was 7 log10 TCID50/ml in control (AgNP-free), while it dropped to 3.2 log10 TCID50/ml after a single treatment with 20 μl/ml of AgNP. After 6 h, DEN-2 yield was 5.8 log10 PFU/ml in the control, while it was 1.4 log10 PFU/ml post-treatment with AgNP (20 μl/ml). AgNP were highly effective against the dengue vector A. aegypti, with LC50 values ranging from 10.24 ppm (I instar larvae) to 21.17 ppm (pupae). Overall, this research highlighted the concrete potential of green-synthesized AgNP in the fight against dengue and its primary vector A. aegypti. Further research on structure-activity relationships of AgNP against other dengue serotypes is urgently required.

  18. Tegn og iagttagelse. At læse Erslev efter den sproglige vending

    DEFF Research Database (Denmark)

    Simonsen, Dorthe Gert

    2001-01-01

    Historie, Historieteori, Historisk metode, Klassisk kildekritik, New Historicism, Den sproglige vending......Historie, Historieteori, Historisk metode, Klassisk kildekritik, New Historicism, Den sproglige vending...

  19. Russisk oljetransport gjennom Barentshavet : En tilfellestudie av den norske responsen

    OpenAIRE

    Aasen, Kari

    2010-01-01

    Oppgaven er en tilfellestudie av den norske responsen på økningen av russisk oljetransport gjennom Barentshavet. Oljetransporten fra Nordvest-Russland tok seg plutselig dramatisk opp i 2002, noe som kom svært overraskende på norske myndigheter. Hensikten med oppgaven har derfor vært å kartlegge den norske responsen, for å finne ut hva som har preget den. På bakgrunn av kjennetegnene ved responsen har jeg deretter forsøkt å sannsynliggjøre hvilke oppfatninger av Russland som vært dominerende. ...

  20. Succession of Pelagic Organisms in the Size Range 0·5-200 μm During a Diatom Bloom in Otsuchi Bay, Japan

    Science.gov (United States)

    Tsuda, Atsushi; Sugisaki, Hiroya; Takahashi, Koji; Furuya, Ken

    1994-08-01

    The succession of pelagic organisms in the approximate size range 0·5-200 μm was investigated during a spring diatom bloom in Otsuchi Bay on the Pacific coast of northern Japan. The diatom bloom lasted 3 weeks in the middle of the period examined. The study period was divided into three phases: pre-bloom, bloom and post-bloom. Mesodinium rubrum, an autotrophic ciliate, was abundant in the pre-bloom phase, when vertical mixing was intense. During the bloom phase, the biomass of organisms other than diatoms themselves and bacteria was depressed. A bacterial peak was observed 4 days after the diatom peak and peaks of nano-autotrophs and -heterotrophs occurred after 14 days. Phototrophic picoplankton showed a biomass peak at the same time as nanoplankton. Grazing on diatoms by the copepod population was shown by the occurrences of faecal pellets and copepod nauplii during and after the bloom phase. These results suggest that production of copepods and bacteria depended only on the diatom bloom directly, and that heterotrophic micro-protista depended on the production of pico- and nano-autotrophs in the post-bloom phase.

  1. The Development of a Tactical-Level Full Range Leadership Measurement Instrument

    Science.gov (United States)

    2010-03-01

    shown that the range of typical leadership behaviors may vary depending on the organizational level of the leader (Den Hartog et al., 1997...Den Hartog et al., 1997). Accordingly, this effort was designed to develop a full range leadership model measurement instrument that targets low- to...302 (1997). Den Hartog , Deanne N., Jaap J. Van Muijen, and Paul L. Koopman. “Transactional versus transformational leadership: An analysis of the

  2. Radiomontagen og dens radiofoniske rødder. Om hørebilledet, den litterære tekstmontage, featuren og den moderne radiomontage

    Directory of Open Access Journals (Sweden)

    Ib Poulsen

    2001-09-01

    Full Text Available Radiomontagen og dens genrevarianter, hørebilledet og featuren har tidligere har tidligere været genstand for interesse fra især den æste- tiske og tekstanalytisk orienterede radioforskning. I denne artikel sæt- tes genren ind i en bredere kontekst, sociokulturelt og medie- og insti- tutionshistorisk. Ledetrådene i den diakrone fremstilling er dels spørgs- målet om genrens historiske og genremæssige rødder, dels en kombi- neret tekstanalytisk og receptionsæstetisk tilgang, der søger at ind- kredse de positioneringer af lytteren, radiomontagen og dens varianter tilbyder. Artiklen er baseret på grundige arkivstudier i DR og på inter- views med nogle af de ’montører’, som har bidraget til udviklingen af montagen, der i kraft af sin radiofoniske spændvidde mest vedholdende og varieret har forsøgt at udforske menneskets livssituation i den moder- ne verden, samtidig med at lytteren er blevet tilbudt en lytteposition, der prioriterer refleksion og eftertanke.

  3. Den Dingen auf den Grund gehen. Meta-Modell Arbeit in der E-Mailberatung.

    Directory of Open Access Journals (Sweden)

    Stefan Schumacher

    2011-10-01

    Full Text Available Ausgehend von der Frage, wie in der schriftlichen Kommunikation Informationsklarheit und Interpretationssicherheit verbessert werden können, beschreibt der Autor das sogenannte Meta-Modell der Sprache, das auf dem Hintergrund des Sprachwissenschaftlers Noam Chomsky von den Begründern des Neurolinguistischen Programmierens (NLP vorgestellt wurde. Bandler und Grinder stellen verschiedene Formen der sprachlichen Auslassung dar, die in der Kommunikation entstehenkönnen. Der Autor streicht die Bedeutung für die Onlineberatung heraus und zeigt anhand praktischer Beispiele, wie mit dem Meta-Modell der Sprache in der Beratung gearbeitet werden kann.

  4. Denning Ecology of Black Bears in the Great Dismal Swamp

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Available information on black bear denning ecology in southeastern wetland populations for management and conservation purposes is limited. This researcher...

  5. Auf den Schultern von Riesen und Zwergen Einsteins unvollendete Revolution

    CERN Document Server

    Renn, Jürgen

    2006-01-01

    Dies ist die Geschichte von Einsteins unvollendeter Revolution, einer tiefgreifenden Veränderung unserer Begriffe von Raum, Zeit, Materie und Strahlung. Diese Revolution begann in Einsteins Wunderjahr 1905, wurde durch seine allgemeine Relativitätstheorie aus dem Jahre 1915 fortgesetzt und wirkt in den heutigen Versuchen der Wissenschaft, die Entstehung und das Schicksal des Universums zu verstehen, weiter. Vor dem Hintergrund einer historischen Theorie des wissenschaftlichen Fortschritts wird Einsteins bis heute nicht abgeschlossene Revolution als das Ergebnis einer langfristigen Entwicklung des Wissens verständlich. Anhand der spannenden Geschichte von Einsteins Entdeckungen wird nachvollziehbar, warum große Denker wie Einstein weiter gesehen haben als ihre Vorgänger. Sie standen nicht nur auf den Schultern von Riesen, also den wissenschaftlichen Leistungen einzelner großer Vorgänger wie Newton, sondern auch auf den Schultern von "Zwergen", dem wissenschaftlichen Wissen, dem technischen Wissen, und d...

  6. Europas Abgrund neu inszeniert - Zwischen den Zeilen Ulrich Halterns

    Directory of Open Access Journals (Sweden)

    David R. Wenger

    2006-09-01

    Full Text Available Spätestens seit der in einigen EU-Mitgliedstaaten heiß geführten Debatte um den Maastrichtvertrag (1992 und seine Weiterführung in Amsterdam (1997 hat die Integrationsfrage tiefe Gewässer der Staatsphilosophie erreicht. Was sich zuvor gleichsam abgeschirmt von der Öffentlichkeit in Expertengremien vorwiegend handelstechnischer Vereinfachung widmete, brach in Gestalt erster nationaler Referenden jäh an die politische Oberfläche. Der zumal seit den negativen Verfassungsvoten in Frankreich und den Niederlanden allgegenwärtige Diskurs über eine europäische Identität verdeutlicht auffällig, wie sehr das einstmals so pragmatisch-sachliche Vorgreifen von den vergessenen Gründungsemotionen eingeholt wird. Was man sich nämlich nicht eingestehen will: Die Grundlage der europäischen Union basiert auf einer Niederlage.

  7. Evaluation Studies of the DEN-2/S-1 Vaccine.

    Science.gov (United States)

    1981-08-01

    Urbana, IL 61801). This drug was found to have antiviral activity against herpes s.mplex viruses (types I and II), vaccinia, influenza PR8...painfluenza 3, coxsackie A-21 and equine rhinovirus (Dr. Rinehart, personal communication). We have found that Didemnin A reduces plaque formation by DEN-i, DEN...3 and herpes simplex virus type 2 (see figures I and 2). Fifty percent inu- bition of plaque formation by these viruses was observed at drug

  8. Den store fred på vej i Tyrkiet

    DEFF Research Database (Denmark)

    Necef, Mehmet Ümit

    2013-01-01

    Der har de seneste måneder foregået seriøse fredsforhandlinger mellem den tyrkiske stat og PKK (Det kurdiske Arbejderparti) for at løse den 30-årige blo-dige konflikt. Denne artikel diskuterer, hvorfor det netop er en moderat isla-misk regering, der gør en stor indsats for at stoppe krigen med en...

  9. Nonsurgical management of two unusual cases of dens in dente

    Directory of Open Access Journals (Sweden)

    Gupta R

    2005-01-01

    Full Text Available The management of two unusual cases of dens invaginatus in a maxillary and a mandibular lateral incisor with a periradicular lesion are reported. The patient presented with pain and localized swelling. Despite the complex anatomy and diagnosis of dens invaginatus, nonsurgical root canal treatment was performed successfully. Furthermore essential clinical considerations and treatment options are suggested. Early diagnosis and management are important to avoid complications.

  10. Wer regiert das Intenet? - Ausschnitte aus den Veranstaltungen der Ringvorlesung

    OpenAIRE

    Schünemann, Wolf J.

    2015-01-01

    In den vergangenen Jahren, und noch einmal verstärkt mit den jüngsten Enthüllungen im sogenannten NSA-Skandal, hat sich die öffentliche Aufmerksamkeit für das Internet als Gegenstand politischen Denkens und gesellschaftlicher Regulierung erheblich gesteigert. Vor diesem Hintergrund scheint es geboten, grundlegende Fragen des gesellschaftspolitischen Umgangs mit dem Internet, vor allem auch der (zwischen-) staatlichen und transnationalen Regulierung des Netzes unter Einschluss verschiedener ge...

  11. Uddrag af Ph.d.-afhandlingen Den groteske modernisme

    DEFF Research Database (Denmark)

    Lübker, Henrik

    2011-01-01

    Om forholdet mellem "det groteske" og "den groteske modernisme" eksemplificeret i en læsning af E.A. Poes "The Fall of the House of Usher" og flere af Francis Bacons malerier.......Om forholdet mellem "det groteske" og "den groteske modernisme" eksemplificeret i en læsning af E.A. Poes "The Fall of the House of Usher" og flere af Francis Bacons malerier....

  12. CIOs mangler fundamentale egenskaber for at lede den digitale transformation

    DEFF Research Database (Denmark)

    Bjørn-Andersen, Niels

    2016-01-01

    CIOs er dårligt rustet til at gå i spidsen for digital disruption og innovation, advarer den internationale topforsker Joe Peppard med afsæt i analyse af mere end 200 CIO-s personligheder......CIOs er dårligt rustet til at gå i spidsen for digital disruption og innovation, advarer den internationale topforsker Joe Peppard med afsæt i analyse af mere end 200 CIO-s personligheder...

  13. Uddrag af Ph.d.-afhandlingen Den groteske modernisme

    DEFF Research Database (Denmark)

    Lübker, Henrik

    2011-01-01

    Om forholdet mellem "det groteske" og "den groteske modernisme" eksemplificeret i en læsning af E.A. Poes "The Fall of the House of Usher" og flere af Francis Bacons malerier.......Om forholdet mellem "det groteske" og "den groteske modernisme" eksemplificeret i en læsning af E.A. Poes "The Fall of the House of Usher" og flere af Francis Bacons malerier....

  14. Urban air quality in a mid-size city - PM2.5 composition, sources and identification of impact areas: From local to long range contributions

    Science.gov (United States)

    Squizzato, Stefania; Cazzaro, Marta; Innocente, Elena; Visin, Flavia; Hopke, Philip K.; Rampazzo, Giancarlo

    2017-04-01

    Urban air quality represents a major public health burden and is a long-standing concern to European citizens. Combustion processes and traffic-related emissions represent the main primary particulate matter (PM) sources in urban areas. Other sources can also affect air quality (e.g., secondary aerosol, industrial) depending on the characteristics of the study area. Thus, the identification and the apportionment of all sources is of crucial importance to make effective corrective decisions within environmental policies. The aim of this study is to evaluate the impacts of different emissions sources on PM2.5 concentrations and compositions in a mid-size city in the Po Valley (Treviso, Italy). Data have been analyzed to highlight compositional differences (elements and major inorganic ions), to determine PM2.5 sources and their contributions, and to evaluate the influence of air mass movements. Non-parametric tests, positive matrix factorization (PMF), conditional bivariate probability function (CBPF), and concentration weighted trajectory (CWT) have been used in a multi-chemometrics approach to understand the areal-scale (proximate, local, long-range) where different sources act on PM2.5 levels and composition. Results identified three levels of scale from which the pollution arose: (i) a proximate local scale (close to the sampling site) for traffic non-exhaust and resuspended dust sources; (ii) a local urban scale (including both sampling site and areas close to them) for combustion and industrial; and (iii) a regional scale characterized by ammonium nitrate and ammonium sulfate. This approach and results can help to develop and adopt better air quality policy action.

  15. Gas blower for use in potentially explosive atmosphere; Ventilatoren fuer den Einsatz in explosionsgefaehrdeten Bereichen

    Energy Technology Data Exchange (ETDEWEB)

    Frobese, D.-H.; Waldmann, R.

    1996-12-31

    The extension of emission control requirements during the last years lead to an increasing demand for blowers suited for the transport of explosive waste gas. Concerning hazardous explosive atmosphere which is classified as zone 1 or zone 2, the ``VDMA-Einheitsblaetter`` give guidance to appropriate constructional requirements for blowers. However, for zone 0-applications, there do not exist fixed construction requirements up til now. In the range of validity of the ``Verordnung fuer brennbare Fluessigkeiten - VbF`` a type approval is requested for blowers to be used for zone 0. Equipment intended for use in potentially explosive atmospheres will fall under the new Directive 94/9/EC (explosion protection directive) in future; equipment to be used for zone 0 will need an EC-type-examination certificate which shall be issued by a notified body in accordance to the Directive. (orig.) [Deutsch] Die zunehmende Erfassung von Anlagen durch emissionsrechtliche Anforderungen hat in den letzten Jahren zu einem immer groesseren Bedarf an Ventilatoren zur Foerderung von explosionsfaehiger Abluft gefuehrt. Fuer den Einsatz in explosionsgefaehrdeten Bereichen der Zonen 1 und 2 gelten VDMA-Einheitsblaetter, nach denen Ventilatoren konstruiert werden koennen; fuer den Einsatz im Bereich der Zone 0 hingegen existieren bislang keine festgelegten Konstruktionsanforderungen. Im Geltungsbereich der Verordnung ueber brennbare Fluessigkeiten (VbF) wird fuer den Einsatz in Zone 0 eine Bauartzulassung gefordert. Zukuenftig unterliegen Geraete, die in explosionsgefaehrdeten Bereichen eingesetzt werden, der neuen EG-Richtlinie 94/9/EG (Explosionsschutzrichtlinie), wonach fuer Geraete, die in Zone 0 eingesetzt werden, eine Baumusterpruefbescheinigung einer benannten Zertifizierstelle erforderlich ist. (orig.)

  16. Scaled photographs of surf over the full range of breaker sizes on the north shore of Oahu and Jaws, Maui, Hawaiian Islands (NODC Accession 0001753)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digital surf photographs were scaled using surfers as height benchmarks to estimate the size of the breakers. Historical databases for surf height in Hawaii are...

  17. Structural composition of organic matter in particle-size fractions of soils along a climo-biosequence in the main range of Peninsular Malaysia

    Science.gov (United States)

    Jafarzadeh-Haghighi, Amir Hossein; Shamshuddin, Jusop; Hamdan, Jol; Zainuddin, Norhazlin

    2016-09-01

    Information on structural composition of organic matter (OM) in particle-size fractions of soils along a climo-biosequence is sparse. The objective of this study was to examine structural composition and morphological characteristics of OM in particle-size fractions of soils along a climo-biosequence in order to better understand the factors and processes affecting structural composition of soil organic matter. To explore changes in structural composition of OM in soils with different pedogenesis, the A-horizon was considered for further analyses including particle-size fractionation, solid-state 13C nuclear magnetic resonance (NMR) spectroscopy and scanning electron microscopy (SEM). Due to the increase in the thickness of organic layer with increasing elevation, the A-horizon was situated at greater depth in soils of higher elevation. The relationship between relative abundances of carbon (C) structures and particle-size fractions was examined using principal component analysis (PCA). It was found that alkyl C (20.1-73.4%) and O-alkyl C (16.8-67.7%) dominated particle-size fractions. The proportion of alkyl C increased with increasing elevation, while O-alkyl C showed an opposite trend. Results of PCA confirmed this finding and showed the relative enrichment of alkyl C in soils of higher elevation. Increase in the proportion of alkyl C in 250-2000 μm fraction is linked to selective preservation of aliphatic compounds derived from root litter. SEM results showed an increase in root contribution to the 250-2000 μm fraction with increasing elevation. For the responsible for the relative enrichment of alkyl C. This study demonstrates that changes in structural composition of OM in particle-size fractions of soils along the studied climo-biosequence are attributed to site-specific differences in pedogenesis as a function of climate and vegetation.

  18. Den ægte vare er det nye sort

    DEFF Research Database (Denmark)

    Hermansen, Judy

    2013-01-01

    Forbrugerne er måske nok dødtrætte af traditionelle reklamer og branding – men tydeligvis ikke af statusræset som sådan, siger Andrew Potter i bogen ”The Authenticity Hoax – How We Got Lost Finding Our Selves”. Nu handler det bare ikke om at flashe reklamesmarte brands, men om at have et forbrug......, der er så ’ægte og uspoleret’ som muligt. Potter er ikke den eneste, der har fået øje på autenticitetsbølgen – men han er nok den sjoveste. Ikke alene har han et skarpt blik for dens naragtigheder, men også en ualmindelig skarp pen. I Potters øjne er trenden simpelthen et udtryk for et statusforbrug...

  19. American black bear denning behavior: Observations and applications using remote photography

    Science.gov (United States)

    Bridges, A.S.; Fox, J.A.; Olfenbuttel, C.; Vaughan, M.B.

    2004-01-01

    Researchers examining American black bear (Ursus americanus) denning behavior have relied primarily on den-site visitation and radiotelemetry to gather data. Repeated den-site visits are time-intensive and may disturb denning bears, possibly causing den abandonment, whereas radiotelemetry is sufficient only to provide gross data on den emergence. We used remote cameras to examine black bear denning behavior in the Allegheny Mountains of western Virginia during March-May 2003. We deployed cameras at 10 den sites and used 137 pictures of black bears. Adult female black bears exhibited greater extra-den activity than we expected prior to final den emergence, which occurred between April 12 and May 6, 2003. Our technique provided more accurate den-emergence estimation than previously published methodologies. Additionally, we observed seldom-documented behaviors associated with den exits and estimated cub age at den emergence. Remote cameras can provide unique insights into denning ecology, and we describe their potential application to reproductive, survival, and behavioral research.

  20. Remote identification of potential polar bear maternal denning habitat in northern Alaska using airborne LiDAR

    Science.gov (United States)

    Jones, B. M.; Durner, G. M.; Stoker, J.; Shideler, R.; Perham, C.; Liston, G. E.

    2013-12-01

    Polar bear (Ursus maritimus) populations throughout the Arctic are being threatened by reductions in critical sea ice habitat. Throughout much of their range, polar bears give birth to their young in winter dens that are excavated in snowdrifts. New-born cubs, which are unable to survive exposure to Arctic winter weather, require 2-3 months of the relatively warm, stable, and undisturbed environment of the den for their growth. In the southern Beaufort Sea (BS), polar bears may den on the Alaskan Arctic Coastal Plain (ACP).The proportion of dens occurring on land has increased because of reductions in stable multi-year ice, increases in unconsolidated ice, and lengthening of the fall open-water period. Large portions of the ACP are currently being used for oil and gas activities and proposed projects will likely expand this footprint in the near future. Since petroleum exploration and development activities increase during winter there is the potential for human activities to disturb polar bears in maternal dens. Thus, maps showing the potential distribution of terrestrial denning habitat can help to mitigate negative interactions. Prior remote sensing efforts have consisted of manual interpretation of vertical aerial photography and automated classification of Interferometric Synthetic Aperture (IfSAR) derived digital terrain models (DTM) (5-m spatial resolution) focused on the identification of snowdrift forming landscape features. In this study, we assess the feasibility of airborne Light Detection and Ranging (LiDAR) data (2-m spatial resolution) for the automated classification of potential polar bear maternal denning habitat in a 1,400 km2 area on the central portion of the ACP. The study region spans the BS coast from the Prudhoe Bay oilfield in the west to near Point Thompson in the east and extends inland from 10 to 30 km. Approximately 800 km2 of the study area contains 19 known den locations, 51 field survey sites with information on bank height and

  1. The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savanna

    NARCIS (Netherlands)

    Buij, Ralph; Croes, Barbara M.; Gort, Gerrit; Komdeur, Jan

    2013-01-01

    To provide insight into raptor declines in western Africa, we investigated associations between land-use and raptor distribution patterns in Cameroon. We examined the role of breeding distribution, species' migratory mobility, diet, body size, and thus area requirements, on 5-km scale patterns of ra

  2. The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savannah

    NARCIS (Netherlands)

    Buij, R.; Croes, B.M.; Gort, G.; Komdeur, J.

    2013-01-01

    To provide insight into raptor declines in western Africa, we investigated associations between land-use and raptor distribution patterns in Cameroon. We examined the role of breeding distribution, species’ migratory mobility, diet, body size, and thus area requirements, on 5-km scale patterns of ra

  3. The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savanna

    NARCIS (Netherlands)

    Buij, Ralph; Croes, Barbara M.; Gort, Gerrit; Komdeur, Jan

    2013-01-01

    To provide insight into raptor declines in western Africa, we investigated associations between land-use and raptor distribution patterns in Cameroon. We examined the role of breeding distribution, species' migratory mobility, diet, body size, and thus area requirements, on 5-km scale patterns of ra

  4. The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savannah

    NARCIS (Netherlands)

    Buij, R.; Croes, B.M.; Gort, G.; Komdeur, J.

    2013-01-01

    To provide insight into raptor declines in western Africa, we investigated associations between land-use and raptor distribution patterns in Cameroon. We examined the role of breeding distribution, species’ migratory mobility, diet, body size, and thus area requirements, on 5-km scale patterns of ra

  5. The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savannah

    NARCIS (Netherlands)

    Buij, R.; Croes, B.M.; Gort, G.; Komdeur, J.

    2013-01-01

    To provide insight into raptor declines in western Africa, we investigated associations between land-use and raptor distribution patterns in Cameroon. We examined the role of breeding distribution, species’ migratory mobility, diet, body size, and thus area requirements, on 5-km scale patterns of

  6. The role of breeding range, diet, mobility and body size in associations of raptor communities and land-use in a West African savanna

    NARCIS (Netherlands)

    Buij, Ralph; Croes, Barbara M.; Gort, Gerrit; Komdeur, Jan

    2013-01-01

    To provide insight into raptor declines in western Africa, we investigated associations between land-use and raptor distribution patterns in Cameroon. We examined the role of breeding distribution, species' migratory mobility, diet, body size, and thus area requirements, on 5-km scale patterns of

  7. En ny krabbe i den danske fauna

    DEFF Research Database (Denmark)

    Tendal, Ole Secher; Olesen, Jørgen

    2011-01-01

    A new crab in Danish waters: Goneplax rhomboides. In March 2010 two specimens of Goneplax rhomboides (Linné, 1758) were caught north of Skagen at about 90 m depth. Both are males and of the same size, 20 mm in length and 31 mm in width of the carapace. In recent years, in neighbouring countries, ...

  8. Female sexual behavior and sexual swelling size as potential cues for males to discern the female fertile phase in free-ranging Barbary macaques (Macaca sylvanus) of Gibraltar.

    Science.gov (United States)

    Brauch, Katrin; Pfefferle, Dana; Hodges, Keith; Möhle, Ulrike; Fischer, Julia; Heistermann, Michael

    2007-09-01

    Although female catarrhine primates show cyclic changes in sexual behavior and sexual swellings, the value of these sexual signals in providing information to males about timing of the fertile phase is largely unclear. Recently, we have shown that in Barbary macaques, males receive information from females which enables them to discern the fertile phase and to focus their reproductive effort accordingly. Here, we investigate the nature of the cues being used by examining female sexual behavior and the size of sexual swelling as potential indicators of the fertile phase. We collected behavioral data and quantified swelling size using digital images of 11 females of the Gibraltar Barbary macaque population and related the data to the time of ovulation and the fertile phase as determined from fecal hormone analysis. We found that rates of female sexual behaviors were not correlated with female estrogen levels and did not significantly differ between the fertile and non-fertile phases of the cycle. In contrast, swelling size was significantly correlated with female estrogen levels and increased predictably towards ovulation with size being maximal during the fertile phase. Moreover, frequencies of male ejaculatory copulations showed a strong positive correlation with swelling size and highest rates were found during maximum swelling. Our data provide strong evidence that female Barbary macaques honestly signal the probability of fertility through sexual swelling and that males apparently use this information to time their mating activities. Honest advertising of the fertile phase might be part of a female strategy to manipulate male mating behavior for their own advantage, such as ensure fertilization with high quality sperm or influence paternity outcome.

  9. Tamanho da área de vida e padrão de uso do espaço em grupos de sagüis, Callithrix jacchus (Linnaeus (Primates, Callitrichidae Home range size and pattern of range use in common marmoset groups, Callithrix jacchus (Linnaeus (Primates, Callitrichidae

    Directory of Open Access Journals (Sweden)

    Carla Soraia Soares de Castro

    2003-03-01

    Full Text Available The influence of abundance and distribution of fruits and gums resources in home range size and pattern of range use were investigated in Callithrix jacchus. From October 1996 to January 1998 two groups (QT and PB that lived in a National Forest/IBAMA-RN in northeastern Brazil (6º5'S, 35º12'W, were observed once a week by instantaneous scan sampling. The frequency of quadrant's visit in the home range was recorded at five minute intervals. Trees used for feeding on fruits and/or gum by the study groups were marked with flagging tape and numbered. Samples of the food items were collected for identification. Data on the temporal variation in fruits abundance was based on the monthly phenological observations of the marked trees. Study groups showed small home range size (QT: 2.4 ha and PB: 0.7 ha. No significant differences in home range size between dry and wet months were found, but groups showed a tendency to broadened the range use in the wet months. This revealed a behavioral strategy which marmosets exploited more gums face to decreased in fruits abundance. The abundance and distribution in clusters of fruits and gums resources influenced the pattern of range use and home range size.

  10. Den preoperativa handdesinfektionen : En systematisk litteraturstudie ur ett evidensperspektiv

    OpenAIRE

    2010-01-01

    Sammandrag: Omkring 2-6% av alla operationer leder till postoperativa infektioner. Postoperativa infektioner skapar onödigt lidande för patienten, samt är den enskilt största orsaken till mortaliteten inom kirurgin. Kostnader till följd av postoperativa infektioner beräknas enbart i Finland uppgå till 100-200 miljoner euro årligen. Den preoperativa handdesinfektionen är ett i ledet av förbyggande åtgärder som bör vidtas för att minska risken att postopertiva infekioner uppstår. Syfte...

  11. APEXIFICATION OF A TOOTH WITH DENS INVAGINATUS (A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Epita Sarah Pane

    2015-08-01

    Full Text Available Dens invaginatus is a developmental malformation of teeth. A successful treatment of a maxillary lateral with dens invaginatus extending to mid root area, incomplete apical closure and large apical radiolucency will be presented. Sixteen months apexification with calcium hydroxide dressing was effective in resolving the problem after ultrasonic debridement, sodium hypochlorite irrigation. A 6-month recall radiograph is presented showing successful healing of the periapical lesion. Conventional endodontic treatment with calcium hydroxide apexification showed a favourable healing and will enhance the prognosis of the tooth.

  12. NCP-modellen og den motiverende samtale - et godt match

    DEFF Research Database (Denmark)

    Lang, Nanna Ruengkratok

    2015-01-01

    Det lader til, at NCP-modellen er kommet for at blive – også i Danmark. Men en model kan ikke bruges til meget, hvis ikke den kan omsættes i praksis. Her kommer diætistens relationelle og kommunikative evner i spil. Faglig ekspertise er vigtigt, men det er empati også. Patientinddragelse, evnen til...... at kunne kommunikere præcist, respekt samt forståelse for patientens perspektiv, motivation, ønsker og behov, er centralt for patientens adhærens – og samarbejde. Dette kan indtænkes ved at kombinere NCP med den motiverende samtale....

  13. Facial Cellulitis Arising from Dens Evaginatus: A Case Report

    Directory of Open Access Journals (Sweden)

    Chun-Ming Chen

    2005-07-01

    Full Text Available Dens evaginatus is a developmental anomaly that produces a tubercle on the occlusal surface of a tooth. It is found most frequently in the mandibular premolars. The occlusal tubercle easily causes occlusal interferences. Attrition or fracture of the tubercle can lead to pulpitis, pulp necrosis, periapical pathosis, and periapical infection. This case report illustrates the treatment of facial cellulitis arising from dens evaginatus with open apex. Calcium hydroxide was used for the apexification procedure. One year after canal obturation, radiography revealed no apical pathosis and the apical seal was evident.

  14. GULag-konference i Landstingssalen, Christiansborg, den 25. september 2012

    DEFF Research Database (Denmark)

    Frederichsen, Kim; Fledelius, Karsten; Foverskov, Carl Erik

    2012-01-01

    Artikel med referater af indlæg på og samlet vurdering af konference afholdt på Christiansborg om GULag, de sovjetiske KZ-lejre i Stalin-tiden arrangeret af Den Danske Helsinki-Komité for menneskerettigheder, Dansk-Russisk Forening og gulag.dk......Artikel med referater af indlæg på og samlet vurdering af konference afholdt på Christiansborg om GULag, de sovjetiske KZ-lejre i Stalin-tiden arrangeret af Den Danske Helsinki-Komité for menneskerettigheder, Dansk-Russisk Forening og gulag.dk...

  15. Den niende april 1940 - i dansk og norsk variant

    DEFF Research Database (Denmark)

    Bryld, Claus

    2015-01-01

    Ville modstand efter norsk model have været æren værd? Vi fik ufrihedens brød at smage i fem år, men den store befolkning led ikke nød, og demokratiet slap helskindet igennem.......Ville modstand efter norsk model have været æren værd? Vi fik ufrihedens brød at smage i fem år, men den store befolkning led ikke nød, og demokratiet slap helskindet igennem....

  16. Plankton Analysis by Automated Submersible Imaging Flow Cytometry: Transforming a Specialized Research Instrument into a Broadly Accessible Tool and Extending its Target Size Range

    Science.gov (United States)

    2012-09-30

    the particles suspended in seawater is crucial to an understanding of the biology , optics, and geochemistry of the oceans. The composition and size...been interested in marine applications of flow cytometry, and had sold several slightly-modified instruments (called Influx Marina ) to oceanographic...our WHOI Biology Department colleague Don Anderson, who was funded by NSF to purchase several Environmental Sample Processors (ESP), to be

  17. Co-existence of two dens invaginations with one dens evagination in a maxillary lateral incisor: a case report.

    Directory of Open Access Journals (Sweden)

    Seyed Amir Satvati

    2014-08-01

    Full Text Available A case with two simultaneous dens invaginations (DIs and one dens evagination (DE in a permanent maxillary lateral incisor is reported for the first time in a 21-year-old girl. DE known as talon cusp of the anterior teeth is a rare entity and its co-existence with DI has been reported scarcely in the literature. Simultaneous occurrence of two DIs with one DE has not been reported elsewhere. Undoubtedly, familiarity with the internal anatomy of such a rare condition can help prevent pulpal disease while performing restorative procedures.

  18. How do low dispersal species establish large range sizes? The case of the water beetle Graphoderus bilineatus

    DEFF Research Database (Denmark)

    Iversen, Lars Lønsmann; Rannap, Riinu; Thomsen, Philip Francis

    2013-01-01

    dispersal. We recorded the presence/absence of G. bilineatus and measured 14 habitat and 20 landscape variables at 228 localities in Estonia, Poland and Sweden within the core range of the species. Using information theory and average multivariate logistic regression models we determined that presence of G....... bilineatus depended on landscape connectivity, distance to a possible source habitat, and stability of the site; however, specificity of habitat characteristics was not vital for the species. We reason that the large range of G. bilineatus is best explained by the historical combination of lakes, river...... measures for G. bilineatus and similar philopatric species. Instead, conservation actions should be focused at the landscape level to ensure a long-term viability of such species across their range....

  19. Krimi og nærhed - den kritiske realisme

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    I krimien ser vi en eksistentiel og samfundsmæssig opmærksomhed, der skriver sig ind i, diskuterer og problematiserer sociale, kulturelle og mentale sammenhænge. Derved analyserer den vores moralske normer og epistemologiske begrænsninger gennem en æstetisk repræsentation. Denne ramme fungerer i ...

  20. Verschillende typen van tertiaire geosynclinalen in den Indischen Archipel

    NARCIS (Netherlands)

    Umbgrove, J.H.F.

    1933-01-01

    Op menig eiland van den Indischen Archipel zijn tertiaire bekkens van sterke daling en sedimentatie geconstateerd. In de literatuur is hun veelal de naam geosynclinaal gegeven. Hun geschiedenis kan als een afzonderlijk verschijnsel en als een afgerond onderwerp beschouwd worden, zelfs indien men de

  1. Om den sociale og symbolske funktion af uddannelsesevalueringer

    DEFF Research Database (Denmark)

    Nørholm, Morten

    Afhandlingens teoretiske udgangspunkt er hos Émile Durkheim, Pierre Bourdieu, Ulf P. Lund­gren, Staf Callewaert, det konkrete er en række evalueringer af uddannelser til (semi)professioner inden for sundhedssektoren.                I afhandlingen konstrueres den sociale og symbolske funktion af...

  2. Hemmelig ransagning og brevstandsning i den digitale virkelighed

    DEFF Research Database (Denmark)

    Lentz, Lene Wacher

    2016-01-01

    Artiklen tager udgangspunkt i sager om databedrageri, hvor betalingskort misbruges til køb på internettet. Politiets adgang til private chatfora på nettet analyseres i forhold til de straffeprocessuelle tvangsindgreb hemmelig ransagning, aflytning og dataaflæsning. Desuden behandler artiklen den ...

  3. Om den sociale og symbolske funktion af uddannelsesevalueringer

    DEFF Research Database (Denmark)

    Nørholm, Morten

    Afhandlingens teoretiske udgangspunkt er hos Émile Durkheim, Pierre Bourdieu, Ulf P. Lund­gren, Staf Callewaert, det konkrete er en række evalueringer af uddannelser til (semi)professioner inden for sundhedssektoren.                I afhandlingen konstrueres den sociale og symbolske funktion af...

  4. Hyekyung Cho: Chinas langer Marsch in den Kapitalismus

    DEFF Research Database (Denmark)

    Czeskleba-Dupont, Rolf

    2006-01-01

    Chos afhandling fra Berlin refereres i hovedtræk. Tre modsætninger tages op i den: 1) mellem 'transitionen' ind i kapitalismen og herredømmet af et kommunistisk parti, hvor det bl.a.viser sig at particentralen fremmer liberaliseringen i kampen mod statsvirksomhederne; 2) mellem integrationen i ve...

  5. Cloud computing og den strafferetlige beskyttelse af data

    DEFF Research Database (Denmark)

    Mathiasen, Peter Dueholm

    2013-01-01

    Cloud computing er blevet en populær metode for bl.a. at opbevare data. Muligheden for eksempelvis at placere forretningskritiske data på teknisk udstyr, som ejes af den udbyder, der driver cloud computing tjenesten, gør det aktuelt at forholde sig til, om straffeloven i sådanne tilfælde yder et...

  6. God smag og bordskik er den bedste slankekur

    DEFF Research Database (Denmark)

    Andersen, Boris

    2011-01-01

    Rockwool Fondens Forskningsenhed har for nylig offentliggjort rapporten ’Helbred, trivsel og overvægt blandt danskerne’, der viser, at antallet af svært overvægtige i USA og Storbritannien er over dobbelt så stort som i Danmark. Den franske madsociolog Claude Fischler beskæftiger sig med sammenhæ...

  7. Den centraleuropæiske fortælling

    DEFF Research Database (Denmark)

    Østergaard, Uffe

    2014-01-01

    Om EU's udvidelse mod øst- og centraleuropa. Om hvordan Hitler og Stalins masseudrydelser har betydet mere for den europæiske identitete og sammenhængskraft end kristendommen, og hvordan antisemitisme er blevet en form for kode og fælles sprog for mennesker, der drømmer om en nationalt eller...

  8. An Interview with DOROTHY E. DENNING, Oral History 424

    OpenAIRE

    Yost, Jeffrey R.

    2013-01-01

    Computer Security History Project Computer security pioneer Dorothy Denning discusses her career including her Lattice Model for Computer Security, research on database security, intrusion detection, and other areas, such as her influential textbooks. The interview also addresses computer security research infrastructure and collaborators at various institutions where she worked including Purdue University, SRI International, Digital Equipment Corporation, Georgetown University, and Naval ...

  9. An Interview with DOROTHY E. DENNING, Oral History 424

    OpenAIRE

    Yost, Jeffrey R.

    2013-01-01

    Computer Security History Project Computer security pioneer Dorothy Denning discusses her career including her Lattice Model for Computer Security, research on database security, intrusion detection, and other areas, such as her influential textbooks. The interview also addresses computer security research infrastructure and collaborators at various institutions where she worked including Purdue University, SRI International, Digital Equipment Corporation, Georgetown University, and Naval ...

  10. Corporate Social Responsibility i forsyningskæden

    DEFF Research Database (Denmark)

    Liempd, Dennis van

    2007-01-01

    Styring og kontrol af etiske risici i forsyningskæden som en del af virksomhedens samfundsansvar (corporate social re­sponsibility; CSR) er blevet mere og mere vigtig nu til dags. Der er stor national og international fokus på CSR-området, ikke mindst fordi globaliseringen har gjort, at flere...

  11. Den rådne banan på kort

    DEFF Research Database (Denmark)

    Brodersen, Lars; Staunstrup, Jan K.; Møller, Jørgen;

    2011-01-01

    , at der gøres noget virkningsfuldt ved Udkantsdanmark. En anden kunne være, at debatgrundlaget og den præsenterede information er for ringe. Artiklen viser eksempler på kort fra den eksisterende, ikke altid konstruktive debat om Udkantsdanmark. Som modstykke hertil præsenteres i artiklen utraditionelle...... kort, der er designet til netop som visual literacy at bidrage til, at der overhovedet bliver en reel debat om Udkantsdanmark & Kernedanmark. Artiklen fremlægger ikke et politisk synspunkt. Artiklen præsenterer, hvor forbløffende effektivt politiske synspunkter kan fremlægges ved at tænke og agere i...... visual literacy. Artiklens budskab er at fremme den konstruktive debat generelt, hvor Den Rådne Banan og kortene blot tjener som eksempel. Kort kan være et fremragende diskussionsgrundlag, fordi det gode kort fungerer som billede og derfor kan blotlægge idéer og strukturer med betydelig oplysnings- og...

  12. Monitoring effecten vliegbewegingen Den Helder Airport: resultaten 2009

    NARCIS (Netherlands)

    Smit, C.J.

    2011-01-01

    Vanwege de nog steeds toenemende vraag naar vliegbewegingen vanuit de offshore-industrie bleken 22.000 vleigbewegingen onvoldoende om aan de vraag te kunnen voldoen. Daarom heeft Den Helder Airport de wens geuit het aantal vluchten uit te breiden naar 25.000. Een dergelijke behoefte zou kunnen leide

  13. Den historiske roman for børn

    DEFF Research Database (Denmark)

    Skyggebjerg, Anna Karlskov

    Bogen indeholder en redegørelse for den historiske roman som børnelitterær genre. Genren diskuteres i et teoretisk, historisk og analytisk perspektiv. Bogen afsluttes med en række principielle didaktiske overvejelser. Bogen er henvendt til alle, der beskæftiger sig professionelt med børnelitteratur...

  14. Sokrates giver sygeplejerskerne arbejdsglæden tilbage

    DEFF Research Database (Denmark)

    Fugl, Marie

    2008-01-01

    Sygeplejersker skal lære at åbne sig for og undre sig over hverdagens eksistentielle spørgsmål. Gør de det, genopdager de arbejdsglæden. Lektor Finn Thorbjørn Hansen fra DPU gør i ny bog op med glædesløsheden. Udgivelsesdato: September...

  15. Barnehagen, læring og den nasjonale konkurranseevnen

    DEFF Research Database (Denmark)

    Krejsler, John B.

    2013-01-01

    , og som har røtter i reformpedagogikken, havner dermed under press. Dette gir konkurransestatens forestillinger om danning en fordel, som er mer inspirert av teorien om rasjonelle valg (rational choice theory), og som fokuserer på «den opportunistiske person» som gjennom livslang læring utvikler sin...

  16. Den Europeiska unionen i en globaliserande värld

    DEFF Research Database (Denmark)

    Manners, Ian James

    2013-01-01

    faktor för att förstå regionala ansträngningar att samordna olika ekonomiska, sociala, miljömässiga och politiska förändringar. Regionalt integrationsarbete och globaliseringen av livsstilar har tillsammans blivit del av den centrala dynamiken i förbindelserna mellan EU och världen. Som Julia Kristeva...

  17. Den inkluderende læsekonsulent - vision eller realitet?

    DEFF Research Database (Denmark)

    Friis, Kirsten

    2009-01-01

    Denne artikel introducerer dels den inkluderende læsekonsulent som videnmedarbejder og forandringsagent for en inkluderende læsepolitik på baggrund af forskning, dels læsekonsulenters umiddelbare feedback til Nationalt Videncenter for Læsning....

  18. Evaluering - Den særlige byfornyelsesindsats 2004-2010

    DEFF Research Database (Denmark)

    Nielsen, Hanne; Graulund, Aske; Scherg, Rune Holst

    Rapporten belyser og sammenfatter resultaterne af den særlige byfornyelsesindsats. Baggrunden er, at Socialministeriet i 2004 fordelte 100 mio.kr. til udvikling af nye metoder til helhedsorienteret indsats i udsatte boligområder. Midlerne blev fordelt til 11 kommuner til at igangsætte en udvikling...

  19. Historien om den kostbare læringstid

    DEFF Research Database (Denmark)

    Henriksen, Carsten

    2015-01-01

    Danmarkshistorien har aldrig rigtig haft plads til de mindste børn. Men nu fortæller forskere fra DPU for første gang historien om, hvordan nutidens daginstitutioner og den moderne pædagogprofession er blevet til. Overraskende viser det sig, at politikere og pædagogiske tænkere gennem de sidste 2...

  20. Teopæd-opgaven og den fagdidaktiske udfordring

    DEFF Research Database (Denmark)

    Hobel, Peter

    2014-01-01

    Artiklen diskuterer nødvendigheden af at styrke det fagdidaktiske perspektiv i 'teopæd-opgaven' - den opgave, som gymnasielærere i uddannelsesstilling skriver ved slutningen af året i uddannelsesstillingen. Artiklen diskuterer, hvad fag er, hvad forholdet er mellem almendidaktik og fagdidaktik, o...

  1. Rum, rammer og biblioteker i den virtuelle verden

    DEFF Research Database (Denmark)

    Heilesen, Simon

    2009-01-01

    Med udgangspunkt i en kort introduktion til hvordan rum og rammer gestaltes i den virtuelle 3‐D verden Second Life, undersøger denne artikel, på hvilke måder rum og rammesætning anvendes og opleves i en faglig sammenhæng. Som eksempel anvendes det danske biblioteksprojekt i Second Life, Info Isla...

  2. Den flerkulturelle dimension i pædagogikken

    DEFF Research Database (Denmark)

    Moldenhawer, Bolette

    2012-01-01

    I dette kapitel udforskes pædagogiske udfordringer forbundet med at skulle håndtere en kulturelt mangfoldig sammensætning af børn og unge i skolen og daginstitutionen i Danmark. Kapitlet er disponeret i fire hovedafsnit og et afsluttende perspektiverende afsnit. Første afsnit viser, hvordan den f...

  3. Cloud computing og den strafferetlige beskyttelse af data

    DEFF Research Database (Denmark)

    Mathiasen, Peter Dueholm

    2013-01-01

    Cloud computing er blevet en populær metode for bl.a. at opbevare data. Muligheden for eksempelvis at placere forretningskritiske data på teknisk udstyr, som ejes af den udbyder, der driver cloud computing tjenesten, gør det aktuelt at forholde sig til, om straffeloven i sådanne tilfælde yder et...

  4. Den za Dnjom võib omanikku vahetada / Dannar Leitmaa

    Index Scriptorium Estoniae

    Leitmaa, Dannar, 1982-

    2008-01-01

    Eesti populaarsemat venekeelset nädalalehte Den za Dnjom välja andva OÜ Merger Meedia juhi Andres Tiisleri sõnul käivad läbirääkimised ajalehe müügiks. Krediidiinfo andmetel on ettevõtte maksuvõlg 1,225 miljonit krooni

  5. Den Europeiska unionen i en globaliserande värld

    DEFF Research Database (Denmark)

    Manners, Ian James

    2013-01-01

    faktor för att förstå regionala ansträngningar att samordna olika ekonomiska, sociala, miljömässiga och politiska förändringar. Regionalt integrationsarbete och globaliseringen av livsstilar har tillsammans blivit del av den centrala dynamiken i förbindelserna mellan EU och världen. Som Julia Kristeva...

  6. Conservative Management of Type III Dens in Dente Using Cone Beam Computed Tomography

    National Research Council Canada - National Science Library

    K Pradeep; M Charlie; M Kuttappa; Prasana Rao

    2012-01-01

      Dens in dente, also known as dens invaginatus, dilated composite odontoma, or deep foramen caecum, is a developmental malformation that usually affects maxillary incisor teeth, particularly lateral incisors...

  7. Reconnaissance study of late quaternary faulting along cerro GoDen fault zone, western Puerto Rico

    Science.gov (United States)

    Mann, P.; Prentice, C.S.; Hippolyte, J.-C.; Grindlay, N.R.; Abrams, L.J.; Lao-Davila, D.

    2005-01-01

    The Cerro GoDen fault zone is associated with a curvilinear, continuous, and prominent topographic lineament in western Puerto Rico. The fault varies in strike from northwest to west. In its westernmost section, the fault is ???500 m south of an abrupt, curvilinear mountain front separating the 270- to 361-m-high La CaDena De San Francisco range from the Rio A??asco alluvial valley. The Quaternary fault of the A??asco Valley is in alignment with the bedrock fault mapped by D. McIntyre (1971) in the Central La Plata quadrangle sheet east of A??asco Valley. Previous workers have postulated that the Cerro GoDen fault zone continues southeast from the A??asco Valley and merges with the Great Southern Puerto Rico fault zone of south-central Puerto Rico. West of the A??asco Valley, the fault continues offshore into the Mona Passage (Caribbean Sea) where it is characterized by offsets of seafloor sediments estimated to be of late Quaternary age. Using both 1:18,500 scale air photographs taken in 1936 and 1:40,000 scale photographs taken by the U.S. Department of Agriculture in 1986, we iDentified geomorphic features suggestive of Quaternary fault movement in the A??asco Valley, including aligned and Deflected drainages, apparently offset terrace risers, and mountain-facing scarps. Many of these features suggest right-lateral displacement. Mapping of Paleogene bedrock units in the uplifted La CaDena range adjacent to the Cerro GoDen fault zone reveals the main tectonic events that have culminated in late Quaternary normal-oblique displacement across the Cerro GoDen fault. Cretaceous to Eocene rocks of the La CaDena range exhibit large folds with wavelengths of several kms. The orientation of folds and analysis of fault striations within the folds indicate that the folds formed by northeast-southwest shorTening in present-day geographic coordinates. The age of Deformation is well constrained as late Eocene-early Oligocene by an angular unconformity separating folDed, Deep

  8. Den, som protesterer, er gået i fælden

    DEFF Research Database (Denmark)

    Kondrup, Johnny Johansen

    2007-01-01

    En litteraturhistorisk kommentar til Knud Romer Jørgensens bog "Den som blinker er bange for døden" (2006), der sammenblander to læserpagter: fiktionspagten ("roman") og referentialitetspagten (selvbiografi).......En litteraturhistorisk kommentar til Knud Romer Jørgensens bog "Den som blinker er bange for døden" (2006), der sammenblander to læserpagter: fiktionspagten ("roman") og referentialitetspagten (selvbiografi)....

  9. Das Bildprogramm und die Raumfunktion in den Nubischen Felstempeln Ramses'II.

    OpenAIRE

    Mohamed , Mohamed Hossam Abdel Wahab

    2014-01-01

    Die vorliegende Arbeit beschäftigt sich mit den sechs nubischen Felstempeln Ramses’II. Es wird der Frage nachgegangen, ob diese Tempelkomplexe einem bestimmten System in ihre Lage, Architektur und Darstellungen folgen. Ziel ist es zu versuchen, den Überlegungen der Planer der verschiedenen Räume zu folgen, die Systematik hinter den Darstellungsabfolgen und die Beziehung zwischen den verschiedenen Szenen darzustellen, sowie die Entwicklung der Königsideologie innerhalb dieser Reihe. Es wird ve...

  10. KGB : de russiske sikkerhedstjenester fra Ivan den Grusomme til Vladimir Putin

    DEFF Research Database (Denmark)

    Kulavig, Erik

    Om den russiske sikkerhedstjeneste eller det hemmelige politis historie fra starten under Ivan den Grusomme i 1600-tallet, gennem tsarernes Rusland og bolsjevikkernes Sovjetunionenen til Putins periode. Med afstikkere til aktiviteterne uden for Ruslands grænser, herunder i Danmark......Om den russiske sikkerhedstjeneste eller det hemmelige politis historie fra starten under Ivan den Grusomme i 1600-tallet, gennem tsarernes Rusland og bolsjevikkernes Sovjetunionenen til Putins periode. Med afstikkere til aktiviteterne uden for Ruslands grænser, herunder i Danmark...

  11. Monstrøse folkeslag hos Plinius den Ældre

    DEFF Research Database (Denmark)

    Isager, Jacob

    2011-01-01

    Afsnittet om monstrøse folkeslag i den Ældre Plinius' Naturhistorie er den eneste tekst fra den græsk-romerske oldtid, der giver en oversigt over dette specielle emne, som flere nu tabte antikke forfattere har skrevet om. De "plinianske folkeracer" har fået en kanonisk status i eftertiden både i ...

  12. Overskud og vækst i den nye økonomi

    DEFF Research Database (Denmark)

    Madsen, Erik Strøjer; Smith, Valdemar

    2001-01-01

    Begrebet den nye økonomi opstod 1990erne i takt med en række ændringer i den økonomiske udvikling. Blandt økonomer udviklede der sig nærmest det syn, at den til tider eksplosive udvikling i informationsteknologien så godt som havde fjernet normale konjunktursvingninger - endog uden tidligere tide...

  13. Macrophage reactivity to different polymers demonstrates particle size- and material-specific reactivity: PEEK-OPTIMA(®) particles versus UHMWPE particles in the submicron, micron, and 10 micron size ranges.

    Science.gov (United States)

    Hallab, Nadim James; McAllister, Kyron; Brady, Mark; Jarman-Smith, Marcus

    2012-02-01

    Biologic reactivity to orthopedic implant debris is generally the main determinant of long-term clinical performance where released polymeric particles of Ultra-high molecular weight polyethylene (UHMWPE) remain the most prevalent debris generated from metal-on-polymer bearing total joint arthroplasties. Polymeric alternatives to UHMWPE such as polyetherether-ketone (PEEK) may have increased wear resistance but the bioreactivity of PEEK-OPTIMA particles on peri-implant inflammation remains largely uncharacterized. We evaluated human monocyte/macrophage responses (THP-1s and primary human) when challenged by PEEK-OPTIMA, UHMWPE, and X-UHMWPE particles of three particle sizes (0.7 um, 2 um, and 10 um) at a dose of 20 particles-per-cell at 24- and 48-h time points. Macrophage responses were measured using cytotoxicity assays, viability assays, proliferation assays and cytokine analysis (IL-1b, IL-6, IL-8, MCP-1, and TNF-α). In general, there were no significant differences between PEEK-OPTIMA, UHMWPE, and X-UHMWPE particles on macrophage viability or proliferation. However, macrophages demonstrated greater cytotoxicity responses to UHMWPE and X-UHMWPE than to PEEK-OPTIMA at 24 and 48 h, where 0.7 μm-UHMWPE particles produced the highest amount of cytotoxicity. Particles of X-UHMWPE more than PEEK-OPTIMA and UHMWPE induced IL-1β, IL-6, MCP-1, and TNF-α at 24 h, p UHMWPE particles, in that they induced less inflammatory cytokine responses and thus, in part, demonstrates that PEEK-OPTIMA implant debris does not represent an increased inflammatory risk over that of UHMWPE.

  14. Trade Fair Energy 2005, Den Bosch, Netherlands; Valbeurs Energie 2005

    Energy Technology Data Exchange (ETDEWEB)

    Bruins, R.; Hendriks, R.; Roessink, R.; Van de Graaf, A.; Rommelse, A.; Voorter, P.; Legius, M. (eds.)

    2005-08-01

    A special section of this magazine issue is dedicated to the trade fair, congress and exhibition Energy 2005, which was held in Den Bosch, Netherlands, 14-16 September 2005. In six articles attention is paid to the prices of electricity and natural gas, the benefits of energy management, energy efficiency in a brewery, energy efficient use of compressed air, energy efficiency in the production of steam, and the production of energy efficient compressed air compressors and compressed air dryers. [Dutch] In een speciaal gedeelte van dit nummer wordt aandacht besteed aan de Vakbeurs Energie 2005, die van 14-16 september 2005 werd gehouden in Den Bosch. In 6 artikelen wordt aandacht besteed aan de prijs van energie, de baten van energiebeheer, energiezuinig brouwen bij Heineken, pers;ucht besparen met de hulp van gebruikersgroepen, besparen van energie in de produktie van stoom, en het energieverbruik van persluchtcompressoren en persluchtdrogers.

  15. Begær, krop og den anden

    DEFF Research Database (Denmark)

    Thøgersen, Ulla

    Med fænomenologisk udgangspunkt fremmes forståelse af begær som lidenskab. Indledes med redegørelse og diskussion af analyser af begær hos Merleau-Ponty, Sartre og Lévinas. Og fortsætter med at skrive om begærets dynamik med fokus på kroppen og den anden......Med fænomenologisk udgangspunkt fremmes forståelse af begær som lidenskab. Indledes med redegørelse og diskussion af analyser af begær hos Merleau-Ponty, Sartre og Lévinas. Og fortsætter med at skrive om begærets dynamik med fokus på kroppen og den anden...

  16. Können Statine den Knochenstoffwechsel positiv beeinflussen?

    Directory of Open Access Journals (Sweden)

    Vock L

    2005-01-01

    Full Text Available Statine, potente Inhibitoren der HMG-CoA-Reduktase, werden erfolgreich zur Senkung der Cholesterinblutspiegel eingesetzt. In den letzten Jahren sind jedoch zahlreiche andere Wirkungen der Statine aufgedeckt worden, die möglicherweise für den Knochenstoffwechsel von Bedeutung sind: In vitro konnten faszinierende knochenanabole Wirkungen der Statine bewiesen werden. Welche molekularen Mechanismen für diese Beobachtungen genau verantwortlich sind, ist nach wie vor unklar. Auch konnten in anderen In-vitro-Studien, Tiermodellen und klinischen Studien diese eindrucksvollen Resultate nicht immer bestätigt werden. Das vorliegende Bild der Statine im Knochenstoffwechsel ist uneinheitlich. Viele Fragen bleiben offen. Es fehlen neben genaueren Erkenntnissen über die Eigenschaften der einzelnen Statine auch Resultate besser auf diese Fragestellung zugeschnittener Studien.

  17. Den hälsosamma kosten : uppfattningar, resonemang och livsmedelsval

    OpenAIRE

    Ahlström, My; Hendriksson, Sanna; Stevic, Bojan

    2013-01-01

    Många konsumenter är idag mycket hälsomedvetna och önskar att äta en hälsosam kost, men möter i sin vardag ett flertal problem. Livsmedelsval kan handla om ställningstaganden och identitet, prismedvetenhet och miljömedvetenhet. Många faktorer påverkar synen på vad som är en hälsosam kost. Livsmedelsvalet blir därför ett komplext vardagsproblem för konsumenten. Det påverkas i viss mån av begrepp från den mediala debatten kring livsmedel, kost och hälsa. Syftet med den här studien var att under...

  18. Leadership Pipeline på rejse i den offentlige sektor

    DEFF Research Database (Denmark)

    Nielsen, Jeppe; Dahl, Kristian Aagaard

    2015-01-01

    udbredelse af Leadership Pipeline modellen. Forskningslitteraturen om Leadership Pipeline er imidlertid beskeden. Med teoretisk ammunition fra ”idé på rejse” perspektivet og et multi-level case studie i den danske offentlige sektor belyser artiklen udbredelse og implementering af Leadership Pipeline. Ved...... at anvende skiftende teoretiske begreber og henholdsvis zoome-ind (organisationsniveau) og zoome-ud (feltniveau) viser artiklen, hvordan en række gensidigt forbundne teoretiserings- og translationsaktiviteter sikrede Leadership Pipeline legitimitet og fremskyndede dens udbredelse samtidig med, at forskellige...... praksisvarianter af Leadership Pipeline udkrystalliserede sig i offentlige organisationer med hver deres kendetegn og problemdefinitioner. Med afsæt i denne empiri argumenterer vi for, at implementering af Leadership Pipeline udspillede sig i overlappende teoretiserings- og translationsaktiviteter, der forstærkede...

  19. Den enkeltes livsmuligheder i fællesskaber

    DEFF Research Database (Denmark)

    Schwartz, Ida

    2012-01-01

    I tråd med et stigende samfundsmæssigt fokus på individet har borgere med varige funktionsnedsættelser fået lovgivningsmæssige krav på tilbud om en støtte, der tager udgangspunkt i den enkeltes ønsker og livssituation (Perlt, et al., 2002). De pædagogiske bestræbelser på at give øgede muligheder ...

  20. Den som dræber spændingen

    DEFF Research Database (Denmark)

    Agger, Gunhild

    2011-01-01

    TV 2's stort lancerede krimithriller ’Den som dræber’ er klicheernes holdeplads. Det gør det til en kedelig oplevelse at tænde for TV 2 søndag aften kl. 20. TV 2 har udfordret DR på sendetidspunktet, men har for lidt at byde på. Der er tale om ren rutine. Ingen af genrens centrale elementer glimrer...

  1. Hvad skal det nytte med al den kvalitet?

    DEFF Research Database (Denmark)

    Thorslund, Jørgen

    2010-01-01

    professionshøjskoler. Der argumenteres for nødvendigheden af, at professionshøjskolerne er ambitiøse i arbejdet med at udvikle og implementere kvalitetskriterier, og afslutningsvis præsentere et bud på, hvordan kriterier og validering kan udformes for den nye fælles vidensdatabase UC Viden (PURE), således at der både...

  2. Den fjerde vej: Trumps sejr skaber ny samfundsorden

    DEFF Research Database (Denmark)

    Rasmussen, Martin Møller Boje; Andersen, Torben K.; Kragh, Claus

    2016-01-01

    Bag Donald Trumps uempatiske retorik gemmer sig omridset af et politisk projekt, man kan kalde den fjerde vej. USA’s kommende præsident blander højre- og venstreorienterede mærkesager til et nyt nationalsocialt politisk koncept. Spørgsmålet er, om Trumps fjerde vej er et seriøst bud på en ny...

  3. Den didaktiske kontrovers i det pædagogiske felt

    DEFF Research Database (Denmark)

    Tofteng, Ditte Maria Børglum; Ritchie, Tom; Madsen, Lisbeth

    2017-01-01

    Bogen skriver sig ind i en kontrovers omkring didaktikkens rolle i pædagogisk arbejde. Det drejer sig om den rolle, som didaktik skal spille i praksis. Gennem bogens tretten kapitler ønsker vi at vise, at der er forskellige veje at gå med didaktikken i hånden, når man arbejder som pædagog. Og vi ...

  4. Den nationale kulturs betydning for organisationsforhold, set i teoretisk perspektiv

    OpenAIRE

    PETERSEN Jens; Olesen, Mikael; Bie, Esben Nordman; Rasmussen, Henrik,; Hartmann-Petersen, Mikkel

    2005-01-01

    Den nationale kulturs betydning for organisationsforhold - set i et teoretisk perspektiv Genstandsfeltet for dette projekt er organisationsstruktur og indflydelsen af kulturel diversitet i videnstunge organisationer. Vi søger at afklare hvordan nationalkultur, påvirker både kultur og struktur i organisationer. Dette bliver analyseret igennem organisations og kultur teori. Teoretikerne er Henry Mintzberg (struktur), Geert Hofstede og Edgar Schein (kultur). Ved hjælp af teorierne og en e...

  5. Pedagogen och den musikaliska människan

    DEFF Research Database (Denmark)

    Uddholm, Mats

    Om musik i vardagsarbetet. I boken tas bl.a. följande frågor upp: Finns det omusikaliska människor? Vilken syn på kunskap ligger till grund för dagens skola? Vem är musikundervisningen till för? Är undervisningens uppgift att skapa framtida musikproffs eller skall den utveckla allas förmåga att...

  6. Raccoon (Procyon lotor) diurnal den use within an intensively managed forest in central West Virginia

    Science.gov (United States)

    Owen, Sheldon F.; Berl, Jacob L.; Edwards, John W.; Ford, W. Mark; Wood, Petra Bohall

    2015-01-01

    Intensive forest management may influence the availability of suitable den sites for large den-seeking species, such as Procyon lotor (Raccoon). As part of a Raccoon ecology study on an industrial forest in the Allegheny Mountains of central West Virginia, we radio-tracked 32 Raccoons to 175 diurnal den sites to determine relative use of dens that included cavity trees, rock dens, log piles, slash piles, and exposed limbs. Patterns of den use significantly differed between sexes and among seasons. Overall, we recorded 58 cavity dens in 12 tree species with 7 maternal dens found in 5 tree species. Raccoons selected larger-diameter den trees than available cavity trees and non-cavity trees. Because the abundance of suitable tree cavities is known to influence Raccoon densities and recruitment at fine spatial scales and female Raccoons in this study used tree cavities as maternal den sites, the continued harvest of large-diameter trees (i.e., those capable of developing den cavities) without replacement may impact Raccoon recruitment within intensively managed forests throughout the central Appalachians.

  7. Kultur og kommunikation: den nødvendige teori

    Directory of Open Access Journals (Sweden)

    Anamaria Fadul

    1994-09-01

    Full Text Available De kommunikationsteorier, som de fleste latinamerikanske medieforsk- ere arbejder med, er ikke tidssvarende. Mange forskere arbejder stadig med manipulationsteorier og hænger fast i en romantisk idé om "det fol- kelige". Derfor beskæftiger de sig kun lidt med de mest populære medie- genrer, som virkelig har en kulturel betydning, f.eks. telenovelaen. Det er på tide, argumenterer Anamaria Fadul i dette teoretiske manifest, at skabe Den Nødvendige Teori - en medieteori, som har rødder i den latinameri- kanske medievirkelighed og som indser telenovelaens centrale betydning for en fælles latinamerikansk kulturel identitet. Artiklen gennemgår i hoved- træk udviklingen indenfor den latinamerikanske medieteori siden 70´erne og kommer med forslag til udvikling af en ny teoretisk vinkel med vægt på massekultur og genrer. Artiklen er oprindeligt udgivet (1989 i Margarida M. Kunsch og Francisco Assis Fernandes (red., Communicacao, Demo- cracia e Cultura. São Paolo: Loyola/Intercom.

  8. Triple dens invaginatus in a single tooth: Rarest of rare case report

    Directory of Open Access Journals (Sweden)

    Amandeep Chhina

    2017-01-01

    Full Text Available Dens invaginatus is a rare malformation affecting the teeth. The teeth that are most commonly affected are the permanent maxillary lateral incisors. The mandibular posterior teeth are rarely affected by dens invaginatus. In most of the cases, a single dens invaginatus is seen affecting the tooth. Cases of double dens invaginatus affecting a single tooth are rare, and those of triple dens invaginatus in a single tooth are even rarer. Here, we present a case of a 14-year-old where three dens invaginatus were seen in the mandibular second premolar. This is the fourth case of three dens invaginatus in a single tooth as only three have been reported previously.

  9. Transmission paths information systems under open access. Developments in the USA; Lastflussinformationssysteme fuer den Wettbewerb. Entwicklungen in den USA

    Energy Technology Data Exchange (ETDEWEB)

    Florek, S. [Tennessee Valley Authority, Transmission/Power Supply, Chattanooga, TN (United States)

    1998-09-01

    Open access to transmission networks is a prerequisite of electricity trading in the deregulated power market. Another basic requirement for market efficiency is reliable transmission grid operation as well as transparency of operations for all parties involved. Therefore, transmission paths information systems are needed for ensuring reliable transfer operations. In the USA, the Transmission Interchange System (TIS) became operational in July 1997 as a load management system, which stores transmission operations for the various traders under open access by so-called transmission tags. Another feature for system monitoring is transmission security regions, within which security coordinators ensure reliable system operation. The security coordinators have access to all transmission paths information within the interconnected systems and thus are able to initiate load management measures for prevention of transfer bottlenecks or failures. The accompanying agreement defining responsibilities of network owners and users as well as operations pricing forms the legal basis of electricity trading in the deregulated market. (orig./CB) [Deutsch] Freier Zugang zum Uebertragungsnetz ist die Grundlage fuer einen funktionierenden Wettbewerb im Elektrizitaetshandel. Daher muss fuer einen effizienten Markt ein sicherer und zuverlaessiger Netzbetrieb gewaehrleistet sein. Dies ist nur moeglich, wenn jeder Netzbetreiber einen vollstaendigen Ueberblick ueber alle Uebertragungen erhaelt, die ueber sein Uebertragungsnetz abgewickelt werden. Lastflussinformationssysteme sind fuer einen sicheren Netzbetrieb unverzichtbar. Im Juli 1997 wurde das Transmission Interchange System (TIS) in den USA in Betrieb genommen und die Erfassung aller Uebertragungen im Hochspannungsnetz durch sogenannte Transmission Tags eingefuehrt. Zur Ueberwachung des Netzbetriebs wurden Transmission Security-Regionen definiert. Innerhalb dieser Regionen sind Security Coordinators fuer den sicheren Netzbetrieb

  10. Vejsalg, gårdbutikker og fritidsfiskere - den informelle økonomi på Samsø

    DEFF Research Database (Denmark)

    Rasmussen, Rasmus Ole

    2007-01-01

    Bidraget behandler den uformelle økonomi på Samsø, med udgangspunkt i den første kortlægning nogensinde af den del af den uformelle økonomi som er forbundet med salg af produkter som er relaterede til naturgrundlaget. De mange vejboder er et iøjnefaldende element i landskabet, og nogle af dem har...

  11. Computational prediction and experimental characterization of a "size switch type repacking" during the evolution of dengue envelope protein domain III (ED3).

    Science.gov (United States)

    Elahi, Montasir; Islam, Monirul M; Noguchi, Keiichi; Yohda, Masafumi; Toh, Hiroyuki; Kuroda, Yutaka

    2014-03-01

    Dengue viruses (DEN) are classified into four serotypes (DEN1-DEN4) exhibiting high sequence and structural similarities, and infections by multiple serotypes can lead to the deadly dengue hemorrhagic fever. Here, we aim at characterizing the thermodynamic stability of DEN envelope protein domain III (ED3) during its evolution, and we report a structural analysis of DEN4wt ED3 combined with a systematic mutational analysis of residues 310 and 387. Molecular modeling based on our DEN3 and DEN4 ED3 structures indicated that the side-chains of residues 310/387, which are Val(310)/Ile(387) and Met(310)/Leu(387) in DEN3wt and DEN4wt, respectively, could be structurally compensated, and that a "size switch type repacking" might have occurred at these sites during the evolution of DEN into its four serotypes. This was experimentally confirmed by a 10°C and 5°C decrease in the thermal stability of, respectively, DEN3 ED3 variants with Met(310)/Ile(387) and Val(310)/Leu(387), whereas the variant with Met(310)/Leu(387), which contains a double mutation, had the same stability as the wild type DEN3. Namely, the Met310Val mutation should have preceded the Leu387Ile mutation in order to maintain the tight internal packing of ED3 and thus its thermodynamic stability. This view was confirmed by a phylogenetic reconstruction indicating that a common DEN ancestor would have Met(310)/Leu(387), and the intermediate node protein, Val(310)/Leu(387), which then mutated to the Val(310)/Ile(387) pair found in the present DEN3. The hypothesis was further confirmed by the observation that all of the present DEN viruses exhibit only stabilizing amino acid pairs at the 310/387 sites.

  12. Range size patterns in European freshwater trematodes

    DEFF Research Database (Denmark)

    Thieltges, David; Hof, Christian; Borregaard, Michael Krabbe

    2011-01-01

    Aim We investigated the relationship between host and parasite diversity as well as latitudinal gradients in parasite diversity on a continental scale in European freshwater trematodes. Location European freshwaters. Methods We extracted distributional data for 564 freshwater trematodes across 25...

  13. Study of the chemical interaction between the beryllium powders of different particles size and the air in the temperature range 500-1000degC form the viewpoint of ITER safety

    Energy Technology Data Exchange (ETDEWEB)

    Davydov, D.A. [State Scientific Center of Russian Federation, Moscow (Russian Federation); Konovalov, Y.V.; Gorokhov, V.A.; Levin, V.B.; Chekhlatov, G.M.; Khomutov, A.M.

    1998-01-01

    Under an effect of some factors characteristic for the ITER- operating condition a dense beryllium facing plasma can transit into various forms, changing its structural states. As a result of the bombardment of beryllium plasma facing components by ion fluxes, the production of a dust including the particles from a few micrometers to a few millimeters in size is possible. The specific features in the behaviour of various beryllium forms under emergency conditions are of an essential interest from the viewpoint of ITER safety. Some grades of powders of different average particles size (14-31 micron) have been produced in a given study, and their chemical interaction at high temperatures with air (500-1100degC), test duration effects simulating the emergency situation at ITER in the first approximation have been studied. The temperature dependence of beryllium powders (different particles size after disc abrased) interaction with air in the temperature range 500-1000degC at the exposure of 5 hours long for each temperature and kinetic dependence of interaction of these powders with air at 800degC for the exposure from half an hour to 7 hours long were studied. An analysis of granulometric weight fraction in the metallic and oxidized beryllium powders with different particles size has been done by the photosedimentational technique with the instrument `Analysette-20`. Construction of a mathematical model for the chemical interaction of beryllium powders with air at high temperatures have been carried out. (author)

  14. Software for radiation protection; Software fuer den Strahlenschutz

    Energy Technology Data Exchange (ETDEWEB)

    Graffunder, H. [Ingenieurbuero Graffunder, Stutensee (Germany)

    2002-03-01

    The software products presented are universally usable programs for radiation protection. The systems were designed in order to establish a comprehensive database specific to radiation protection and, on this basis, model in programs subjects of radiation protection. Development initially focused on the creation of the database. Each software product was to access the same nuclide-specific data; input errors and differences in spelling were to be excluded from the outset. This makes the products more compatible with each other and able to exchange data among each other. The software products are modular in design. Functions recurring in radiation protection are always treated the same way in different programs, and also represented the same way on the program surface. The recognition effect makes it easy for users to familiarize with the products quickly. All software products are written in German and are tailored to the administrative needs and codes and regulations in Germany and in Switzerland. (orig.) [German] Die hier vorgestellten Softwareprodukte sind universell einsetzbare Programme fuer den Strahlenschutz. Die Systeme wurden mit dem Ziel erstellt, eine umfangreiche strahlenschutz-spezifische Datenbasis zu erschaffen und darauf basierend Themen des Strahlenschutzes programmtechnisch abzubilden. Der Schwerpunkt der Entwicklungen lag zunaechst bei der Schaffung der Datenbasis. Jedes Softwareprodukt sollte auf dieselben nuklidspezifischen Daten zurueckgreifen, Eingabefehler und unterschiedliche Schreibweisen sollten von vorneherein ausgeschlossen werden. Die Produkte selbst wurden damit kompatibel zueinander und koennen Daten untereinander austauschen. Die Softwareprodukte sind modular aufgebaut. Im Strahlenschutz wiederkehrende Funktionen werden in verschiedenen Programmen immer gleich behandelt und auf der Programmoberflaeche auch gleich dargestellt. Der Wiedererkennungseffekt vereinfacht es den Anwendern, sich schnell mit den Produkten anzufreunden. Alle

  15. Nonlinear generalization of Den Hartog's equal-peak method

    Science.gov (United States)

    Habib, G.; Detroux, T.; Viguié, R.; Kerschen, G.

    2015-02-01

    This study addresses the mitigation of a nonlinear resonance of a mechanical system. In view of the narrow bandwidth of the classical linear tuned vibration absorber, a nonlinear absorber, termed the nonlinear tuned vibration absorber (NLTVA), is introduced in this paper. An unconventional aspect of the NLTVA is that the mathematical form of its restoring force is tailored according to the nonlinear restoring force of the primary system. The NLTVA parameters are then determined using a nonlinear generalization of Den Hartog's equal-peak method. The mitigation of the resonant vibrations of a Duffing oscillator is considered to illustrate the proposed developments.

  16. Implementering og anvendelse af nyere ledelsesteknologier i den kommunale sektor

    DEFF Research Database (Denmark)

    Nielsen, Steen; Nielsen, Christian

    2009-01-01

    New Public Management vedrører transformeringen af ledelse i den offentlige sektor, bl.a. ved introduktion af nye krav til de offentlige ledere, herunder at skulle stå til regnskab for ressourceforbrug, kvaliteten af de leverede ydelser, samt en fornuftig anvendelse af skatteborgernes penge. En...... central del af New Public Management bevægelsen er derfor introduktionen af nye økonomistyringsteknikker og ledelsesmodeller. Denne artikel fokuserer på kendskab, udbredelse, prioritering og nytten af sådanne tiltag i kommunalt regi, og sætter fokus på, hvorvidt økonomistyringsteknikker og...

  17. Videnskabsteorien og den reflekterende dømmekraft

    DEFF Research Database (Denmark)

    Jørgensen, Klaus Frovin

    2007-01-01

    kemien, indgår derimod fornuftsmæssige begreber og objekter, som ikke strengt taget er mulige erfaringsobjekter. Dette betyder, at der er et vist subjektivt, det vil sige ikke- skematiserbart, element i de empiriske videnskaber. Men det er ikke den fuldstændige relativisme eller vilkårlige....... Artiklen afsluttes ved at perspektivere og sammenstille Kants videnskabsfilosofi med Thomas Kuhns nutidige videnskabsteori. Jeg argumenterer for, at Kants og Kuhns teorier har fundamentale elementer og strukturer til fælles, og at de vigtigste fornuftsmæssige ideer og principper hos Kant går igen i Kuhns...

  18. Lehre in den Ingenieurwissenschaften – (kein genderfreies Terrain

    Directory of Open Access Journals (Sweden)

    Michaela Kuhnhenne

    2008-03-01

    Full Text Available Ingenieurwissenschaftliche Studiengänge sind ein „für geschlechterkritische Reflexionen resistentes Terrain“ (Fleßner, S. 7. Gerade aus diesem Grunde setzen sich die Autorinnen mit der Frage auseinander, wie Geschlecht in den Ingenieurwissenschaften kritisch reflektiert werden kann und Aspekte der Geschlechterforschung in die Lehre integriert werden können. Sie gehen dabei von einem Verständnis der Hochschule als einem Ort der Persönlichkeitsbildung aus, an dem mit und neben dem Wissen auch gesellschaftliche Normen und Werte vermittelt werden.

  19. Teilchenphysik SESAME - Forschung für den Frieden

    Science.gov (United States)

    Schopper, Herwig

    2002-01-01

    Unter der Schirmherrschaft der UNESCO entsteht in den kommenden Jahren in Jordanien ein internationales Forschungszentrum, dessen wichtigste Forschungsanlage eine Quelle für Synchrotronstrahlung sein wird. Die SESAME (Synchrotron-Light for Experimental Science and Application in the Middle East) genannte Anlage soll auch dazu beitragen, Vertrauen und Toleranz zwischen Wissenschaftlern und Politikern aus verschiedenen Kulturkreisen und Traditionen zu fördern. Das europäische Teilchenlabor CERN diente hier in mancher Hinsicht als Vorbild. Technische Grundlage für SESAME wird das 1999 stillgelegte Berliner Synchrotron BESSY I sein.

  20. Fermentation instead of animal feeding; In den Fermenter statt in den Magen des Schweins

    Energy Technology Data Exchange (ETDEWEB)

    Brombach, T.

    2008-07-01

    Since 2006, Germany has prohibited the feeding of class K3 waste food from gastronomy, canteens and the food industry to pigs. Fermentation is a creative solution. In Haid on the Schwaebische Alb mountain range, two creative waste managers developed a plant for power generation from fat and used oils. (orig.)

  1. Den økonomiske teoris rødder - fra Aristoteles til Lucas

    DEFF Research Database (Denmark)

    Olesen, Finn; Pedersen, Kurt

    I denne bog, "Den økonomiske teoris rødder - fra Aristoteles til Lucas", belyses den økonomiske teoris udvikling fra de første spæde græske forsøg godt 400 år f. Kr. helt op til vores egen samtid med en præsentation af moderne makroteori. Samtidig forsøger fremstillingen at sætte den økonomiske...

  2. Ueber den begriff "Kinoplasma" in der spermiogenese von Australorbis Glabratus Olivaceus (Mollusca, Pulmonata, Planorbidae

    Directory of Open Access Journals (Sweden)

    Rudolf Barth

    1960-11-01

    Full Text Available Zur Klaerung der Frage, ob der Begriff "Kinoplasma" fuer gewisse, von MERTON (1924,1926, 1930 beobachtete Bildungen an den reifenden Spermiden von pulmonaten Mollusken oder fuer Bestandteile des Cytoplasmas im Sinne von STRASBURGER und SCARTH zu verwenden ist, werden in der vorliegenden Mitteilung die Vorgaenge bei der Spermiohistogenese von Australorbis glabratus olivaceus untersucht. Es ergibt sich: 1. Das von MERTON bezeichnete "Kinoplasma" existiert nicht als solches, es handelt sich bei den von ihm dargestellten Protoplasmabildungen um kugelige, von den Spermiden abgeschnuerte Restkoerper nicht verwendeten Baumaterials, bestehend aus Protoplasma und einigen Mitochondrien. Sie werden von den Naehr- oder Bazalzellen phagozytiert. Der Ausdruck "Kinoplasma" kann nur fuer die submikroskopischen, geformten, faedigen Elemente des Cytoplasmas reserviert bleiben, die den geradlinigen Fall der uebrigen nicht geformten Komponenten bremst oder ablenkt; damit muss das Kinoplasma aber aus dem Begriff des Cytoplasmas herausgenommen werden, da es, wenn auch vermutlich reversibel, eine Differenzierung darstellt. 2. Der Spermienfaden wird von den Centriolen (Axialfilament und den Mitochondrien (zwei peripher gelegene Spiralfilamente, sowie einem Plasmamantel gebildet. 3. Nach Beendigung des Auswachsens der Spermiengeissel, die zu diesem Zeitpunkt nur aus dem Achsenfaden und dem Protoplasmazylinder besteht, setzt sich eine Protoplasmamasse vom Kopf in Richtung zum Geisselende in Bewegung. Sie fuehrt den Golgi-Koerper und sehr viele Mitochondrien mit sich. Aus diesen entwickeln sich Fibrillen, die sich zu den beiden Spiralfilamenten zusammenfuegen. Diese Masse entspricht der von MERTON in seiner Theorie als Kinoplasma bezeichneten Komponente. 4. Die Bewegung dieses Protoplasmateils wird auf den Schub zurueckgefuehrt, den die sich bildenden Fibrillen auf die Mitochondrien ausueben. 5. Die Rueckwaertsbewegung dieses Protoplasmakoerpers beruht wahrscheinlich auf

  3. Skaber den nye økonomi højere produktivitet?

    DEFF Research Database (Denmark)

    Dilling-Hansen, Mogens; Madsen, Erik Strøjer; Smith, Valdemar

    2001-01-01

    Den kraftige og vedvarende vækst i USA og det tilhørende boom i IT-sektoren er grundlaget for begrebet 'Den nye Økonomi', der er dukket op i sidste halvdel af 90'erne. Den grundlæggende sammenhæng mellem de to fænomener er, at IT-industrien i sig selv og produktivitetsstigninger i de øvrige branc...

  4. Double dens invaginatus in an impacted molariform supernumerary tooth: An unique case

    Directory of Open Access Journals (Sweden)

    Anegundi R

    2008-05-01

    Full Text Available Dens invaginatus is a relatively rare developmental anomaly affecting usually the permanent maxillary lateral incisor. Various factors have been put forward regarding its pathogenesis. Involvement of crown/root has been reported as the coronal and radicular variety of dens invaginatus. One of the rarest variant is the Double dens invaginatus and only a few cases have been reported in the literature.This article focuses on a case of double dens invaginatus in an impacted maxillary anterior supernumerary tooth, the associated complications and its management

  5. MANAGEMENT OF DENS INVAGINATUS TYPE II WITH PERIAPICAL LESION: CASE REPORT*

    Directory of Open Access Journals (Sweden)

    İsmail Uzun

    2015-10-01

    Full Text Available Dens invaginatus is a developmental anomaly resulting from epithelial invagination of the tooth crown before calcification. Endodontic treatment of teeth affected by dens invaginatusmay be difficult and complex due to aberrant anatomy. Combined orthograde and surgical approaches for successful treatment of dens invaginatus are effective. This report describes the successful treatmentand results atthe 12-month follow-up of a maxillary lateral incisor showing dens invaginatus type II, a large periapical lesion and an open apex by using combined surgical and endodontic treatment.

  6. Anatomy of the Alar Ligament: Part II: Variations of Its Attachment onto the Dens.

    Science.gov (United States)

    Sardi, Juan P; Iwanaga, Joe; Schmidt, Cameron; Rustagi, Tarush; Chapman, Jens R; Oskouian, Rod J; Tubbs, R Shane

    2017-08-09

    Various authors have described the morphology of the alar ligaments; however, there are no reports of a cadaveric study focusing on their attachments onto the dens. The purpose of this study was to use fresh cadaveric specimens to describe in detail different attachment patterns of the alar ligaments onto the dens. This study used 22 sides from 11 fresh frozen cadaveric heads. Specimens were obtained from 8 men and 3 women who were 67-99 years old at death. Dissection of the exact attachment of the alar ligaments onto the dens was observed from posterior, superior, and anterior views under the surgical microscope. From a posterior view, 6 alar ligaments passed over the tip of the dens, and 16 alar ligaments attached onto the posterolateral part of the dens; the right and left ligaments had no continuity. From a superior view, the alar ligament was classified in 2 ways: depending on the covered area of the dens (entirely or posterior two thirds) and continuity of the alar ligament (transversely, separately, or combination). Fourteen alar ligaments covered the posterior two thirds of the dens. From an anterior view, in 1 specimen, the alar ligament extended to the anterior surface of the dens. Wide posterolateral anchoring to the dens coupled with the nearly horizontal trajectory explains the biomechanical advantage of the alar ligaments in undertaking a stabilizing function in limiting head rotation that would otherwise be ineffective in the case of weaker attachments or a more vertical orientation. Copyright © 2017 Elsevier Inc. All rights reserved.

  7. Bilateral dens invaginatus in the mandibular premolar region

    Directory of Open Access Journals (Sweden)

    Canger Emin

    2009-01-01

    Full Text Available Dens invaginatus (dens in dente, DI is a rare developmental anomaly resulting from invagination of a portion of the crown rare. It is an important dental anomaly due to the possible pulpal involvement. DI can be detected clinically in a tooth presenting unusual crown morphology or having deep foramen coaceum. Also, clinically, non-suspected affected teeth are commonly diagnosed as an incidental radiographic finding. Presence of DI in the mandibular premolar teeth is unusual. Aims is to introduce a case of bilateral occurrence of DI in mandibular first premolar teeth. A 33- year-old man was referred to our clinic with a chief complaint of severe pain in his lower third molar tooth. Radiographic examination revealed bilateral DI (single at the left, double at the right in mandibular first premolar teeth. The teeth were restored with fissure sealant. Although bilateral appearance of DI is a frequent situation, mandibular occurrence is very rare. Our review of the literature reveals just nine cases of DI, and only one of them is in a premolar tooth.

  8. Digital kommunikation med den offentlige sektor: Styrelser og statslige institutioner

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    digital postkasse, som borgerne kunne skrive til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs....... uden at uvedkommende kan få adgang til følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Vi har også undersøgt besvarelse af e-mail, dels...... for at kunne sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen...

  9. Irradiation programme MANITU: Results of pre-examinations and Charpy tests with unirradiated materials; Bestrahlungsprogramm MANITU. Ergebnisse der Voruntersuchungen und der Kerbschlagbiegeversuche mit den unbestrahlten Werkstoffen

    Energy Technology Data Exchange (ETDEWEB)

    Rieth, M.; Dafferner, B.; Ries, H.; Romer, O.

    1995-04-01

    The irradiation project MANITU was planned in the frame of the European Long-term Fusion Materials Development Programme. The results of MANITU will have a lasting influence on the future actions within the materials development programme. The problem of the irradiation induced embrittlement of possible martensitic alloy candidates is still unsolved. But after the evaluation of sub-size Charpy tests with the unirradiated refrence specimens of MANITU a first tendency is recognizable. The Charpy properties of the newly developed low activation 7-10% Cr-WVTa alloys are clearly better compared with the modified commerical 10-11% Cr-NiMoVNb steels. In the present report the pre-examinations are documented and the Charpy test results with unirradiated reference specimens are analysed and assessed. (orig.) [Deutsch] Das Bestrahlungsprojekt MANITU wurde im Rahmen des europaeischen Langzeitprogramms fuer Materialentwicklung fuer die Kernfusion geplant. Die daraus gewonnenen Ergebnisse werden das weitere Vorgehen bei der Materialentwicklung entscheidend beeinflussen. Das Problem der bestrahlungsinduzierten Versproedung bei den in Frage kommenden martensitischen Werkstoffen ist nach wie vor ungeloest. Eine erste Tendenz zeichnet sich nach der Auswertung der Kerbschlagbiegeversuche an den unbestrahlten miniaturisierten Referenzproben des MANITU-Programms ab. Die neu entwickelten niedrig aktivierbaren 7-10% Cr-WVTa-Legierungen weisen gegenueber den modifizierten kommerziellen 10-11% Cr-NiMoVNb-Staehlen deutlich bessere Kerbschlageigenschaften auf. Im vorliegenden Bericht werden die Voruntersuchungen dokumentiert und die Ergebnisse aus den Kerbschlagbiegeversuchen der unbestrahlten Referenzproben analysiert und bewertet. (orig.)

  10. Synthesis and mechanical properties of silicon-doped TiAl-alloys with grain sizes in the submicron range; Herstellung und mechanische Eigenschaften silizidhaltiger TiAl-Werkstoffe mit Korngroessen im Submikronbereich

    Energy Technology Data Exchange (ETDEWEB)

    Bohn, R. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Werkstofforschung

    1999-07-01

    The objective of this study is to provide a comprehensive insight into the mechanical properties of nano- and submicron-grained intermetallics, containing ceramic particles as a second phase. The investigations are focussed on {gamma}-TiAl-based alloys with a fine dispersion of titanium silicides. The samples are prepared by high energy milling and subsequent hot isostatic pressing. The mechanical properties are mainly dominated by the grain size as the most important structural feature. At room temperature, the grain size dependence of hardness and yield strength can be described by the well-known Hall-Petch relationship. Contrary to the behavior of conventional alloys, the ductility of submicron-grained alloys drops if the grain size is further reduced. This may be attributed to the insignificance of diffusional creep at room temperature and to arising difficulties evolving for dislocation-based deformation mechanisms. In the high temperature range, the flow stress is strongly reduced. Superplastic deformation becomes feasible already at 800 C. The silicide particles impede grain growth, but they also promote cavitation during tensile straining. The mechanisms of deformation are similar to those established for coarse-grained materials at higher temperatures ({>=}1000 C). (orig.)

  11. Size matters!

    DEFF Research Database (Denmark)

    Pedersen, Jens Christian

    2010-01-01

    Når man taler om partikelforureningen fra den islandske vulkan er det afgørende at være opmærksom på at der er tale om en bred vifte af partikelstørrelser. De største partikler vil hurtigst falde ned til jordoverfladen, de mindste vil klumpe sammen, og tilbage er hovedsageligt partiklerne på 0,1-...

  12. Teknologiskift i den danske marinemotorbranche 1895-1980

    Directory of Open Access Journals (Sweden)

    Søren Østergård Madsen

    2014-06-01

    Full Text Available Den danske – og skandinaviske – marinemotorbranche udviklede sig anderledes end i mange andre lande.. Dels var Danmark meget tidlig i motoriseringen af fiskerflåden, dels gav de mindre enheder i det skandinaviske fiskeri grobund for udvikling af en nordisk specialitet: totakts råoliemotoren. Fra 1913 og frem stod marinemotorproducenterne principielt med valget mellem tre typer, når de skulle producere motorer; firtakts- og totaktsglødehovedteknologi og dieselteknologi. Skiftet mellem disse teknologier skete forskudt fra fabrik til fabrik, og alle tre teknologier var derfor i markedet samtidig. Artiklen påviser en opdeling i markedet i indre og ydre farvande, hvor den ”forældede” teknologi efter introduktionen af en mere effektiv fortrak til de mindre kraftkrævende indre farvande. Dette skete for både firetakts- og totaktsglødehovedteknologien. Samtidig påviser artiklen, at fiskernes valg mellem forskellige producenter i mindre grad blev afgjort af lokal loyalitet og mere af det egentlige behov.Shift in technological focus in the Danish marine motor industry 1895-1980The Danish marine motor industry evolved together with its Scandinavian counterparts along totally different lines than the rest of the world. This is partly due to the fact that especially Denmark was very quick to motorize its fishing fleet, partly due to the smaller vessels which allowed the development of a Scandinavian specialty: the two-stroke crude oil engine. From 1913 an onwards the manufactory of marine engines could incorporate three different technologies: the four and two stroke hot bulb engine and the diesel engine. The shift between these technologies happened independently from one manufacturer to the other, and all three technologies were thus available at the same time. This paper demonstrates a division of the market into two: the outer and inner Danish waters. When a more efficient technology gained entrance in the market, the

  13. Östrogene für den Mann?

    Directory of Open Access Journals (Sweden)

    Kuhl H

    1999-01-01

    Full Text Available Frauen haben eine um 6-7 Jahre längere Lebenserwartung als der Mann und sind bis zur Menopause weitgehend vor ischämischen Herzerkrankungen geschützt. Da es Hinweise auf eine protektive Rolle der Östrogene gibt, wird zunehmend die Frage diskutiert, ob auch der ältere Mann von einer Therapie mit Östrogenen profitieren könnte. Der Mann produziert im Testis erhebliche Mengen an Östrogenen, deren Wirkung jedoch aufgrund des antagonistischen Einflusses der Androgene normalerweise nicht sichtbar wird. Trotzdem haben Östrogene auch beim Mann eine physiologische Bedeutung. Der Estradiolspiegel liegt beim Mann zwischen 20 und 55 pg/ml, zeigt eine zirkadiane Rhythmik mit einem Maximum am Nachmittag und fällt nicht mit dem Alter ab. Östrogene stimulieren auch beim männlichen Geschlecht das Längenwachstum in der Pubertät und sind essentiell für die Knochenreifung und -mineralisation. Sie beeinflussen den Fettstoffwechsel und spielen bei der Regulation der Gonadotropinsekretion eine wichtige Rolle. Sie hemmen im Hoden direkt die Synthese des Testosterons und in der Prostata dessen Umwandlung in das stärker wirksame Dihydrotestosteron. Möglicherweise können die Östrogene auch den Mann durch eine direkte Wirkung auf die Arterienwand vor der Atherosklerose schützen. Bei der Frau wurde nachgewiesen, daß Östrogene die Oxidation der LDL und deren Akkumulation in der Intima reduzieren und die Proliferation der glatten Muskelzellen hemmen. Durch ihren vasodilatatorischen Effekt verhindern sie im Bereich eines dysfunktionellen Endothels Vasospasmen und damit ischämische Erkrankungen. Für die Prävention des Mannes kommen jedoch nur schwache Östrogene (z. B. Estriol, Estradiol-17alpha in Frage, die zwar eine günstige Wirkung auf die Arterien, aber keine östrogenisierende Wirkung auf den Phänotyp haben. Vor einer allgemeinen Anwendung beim Mann muß jedoch mit kontrollierten Untersuchungen die Wirksamkeit und Unbedenklichkeit der

  14. Den Europæiske union er på vej mod at udvikle og implementere europæiske regnskabsstandarder indenfor den offentlige sektor (EPSAS)

    DEFF Research Database (Denmark)

    Pontoppidan, Caroline Aggestam

    2013-01-01

    I maj 2013 var Europa-Kommissionen og Eurostat vært for en konference med formålet at forhandle om den fremtidige udvikling af harmoniserede offentlige regnskabsstandarder (European Public Sector Stardards' EPSAS), som skal anvendes af alle medlemslande i den Europæiske Union. Konfererencen, som...... blev holdt i Bryssel, samlede internationale organisatoner såsom International Federation of Accountants (FAC), Verdensbanken og International Monetary Fund (IMF) samt interessenter og beslutningstagere fra EU's medlemslande....

  15. Denitrification in the root zone using a simple empirical model SimDen

    DEFF Research Database (Denmark)

    Vinther, Finn Pilgaard

    2006-01-01

    Only by knowing soil type and amount of nitrogen applied, an estimate of the annual denitrification can be obtained with the simple empirical model SimDen.......Only by knowing soil type and amount of nitrogen applied, an estimate of the annual denitrification can be obtained with the simple empirical model SimDen....

  16. Sidste prognose før valget: SF den store vinder

    DEFF Research Database (Denmark)

    Thomsen, Søren Risbjerg

    2009-01-01

    KV09: I sin sidste prognose til Altinget.dk før kommunalvalget tirsdag holder professor Søren Risbjerg Thomsen fast ved SF som den store vinder.......KV09: I sin sidste prognose til Altinget.dk før kommunalvalget tirsdag holder professor Søren Risbjerg Thomsen fast ved SF som den store vinder....

  17. Rid med på den næste bølge

    DEFF Research Database (Denmark)

    Just, Sine Nørholm; T. Gulbrandsen, Ib

    2016-01-01

    Strategisk kommunikation har traditionelt haft fokus på planlægning: Analyser af organisationens situation i forhold til dens målsætning. Og udarbejdelse af den kommunikationsstrategi, som det er bedst egnet til at nå de organisatoriske mål med. Imidlertid er der stadig større grund til at flytte...

  18. Forskere giver opskriften på den perfekte lærer

    DEFF Research Database (Denmark)

    Fugl, Marie

    2008-01-01

    Et tæt forhold til den enkelte elev. Evnen til at lede en klasse. Og et vist mål faglig dygtighed. Det er ingredienserne i den gode lærer, der får gode resultater hos eleverne. Interview med professor Sven Erik Nordenbo. Udgivelsesdato: Juni...

  19. Den Dansk-Engelske Regnskabsordbog/Danish-English Dictionary of Accounting

    DEFF Research Database (Denmark)

    Nielsen, Sandro; Mourier, Lise; Bergenholtz, Henning

    Den Dansk-Engelske Regnskabsordbog. Hver af ordbøgerne har 4.100 opslagsord og ca. 15.000 ordforbindelser. Ordbøgerne bygger primært på den gældende danske årsregnskabslov, danske regnskabsvejledninger og internationale regnskabsstandarder (IAS/IFRS)....

  20. Dens invaginatus in a geminated maxillary lateral incisor

    Science.gov (United States)

    Pallivathukal, Renjith George; Misra, Alok; Nagraj, Sumanth Kumbargere; Donald, Preethy Mary

    2015-01-01

    Dens invaginatus (DI) and gemination are two developmental abnormalities that are well reported in the dental literature, but their coexistence in a single tooth is rare. Such situations worsen the risk factors associated with these anomalies, and the treatment plan should be customised as they possess altered morphology and anatomy. A 19-year-old girl came for evaluation of a cracked tooth in the front region of the upper jaw. The tooth showed clinical features of gemination and radiographic features of DI, and was diagnosed as DI in geminated maxillary lateral incisor. The differential diagnoses based on clinical appearance without radiographic investigation may warrant the treatment approach if these two abnormalities coexist in a single tooth. The report also highlights the importance of three-dimensional imaging in diagnosis and treatment planning of teeth with altered pulp canal anatomy. There are few reported cases in the literature detailing the treatment options for these two anomalies occurring in the same tooth. PMID:26002668