WorldWideScience

Sample records for mon ravens corvus

  1. Short-term observational spatial memory in Jackdaws (Corvus monedula) and Ravens (Corvus corax).

    Science.gov (United States)

    Scheid, Christelle; Bugnyar, Thomas

    2008-10-01

    Observational spatial memory (OSM) refers to the ability of remembering food caches made by other individuals, enabling observers to find and pilfer the others' caches. Within birds, OSM has only been demonstrated in corvids, with more social species such as Mexican jays (Aphelocoma ultramarine) showing a higher accuracy of finding conspecific' caches than less social species such as Clark's nutcrackers (Nucifraga columbiana). However, socially dynamic corvids such as ravens (Corvus corax) are capable of sophisticated pilfering manoeuvres based on OSM. We here compared the performance of ravens and jackdaws (Corvus monedula) in a short-term OSM task. In contrast to ravens, jackdaws are socially cohesive but hardly cache and compete over food caches. Birds had to recover food pieces after watching a human experimenter hiding them in 2, 4 or 6 out of 10 possible locations. Results showed that for tests with two, four and six caches, ravens performed more accurately than expected by chance whereas jackdaws did not. Moreover, ravens made fewer re-visits to already inspected cache sites than jackdaws. These findings suggest that the development of observational spatial memory skills is linked with the species' reliance on food caches rather than with a social life style per se.

  2. Common Raven (Corvus corax) kleptoparasitism at a Golden Eagle (Aquila chyrsaetos) nest in southern Nevada

    Science.gov (United States)

    Simes, Matthew; Johnson, Diego R.; Streit, Justin; Longshore, Kathleen; Nussear, Kenneth E.; Esque, Todd C.

    2017-01-01

    The Common Raven (Corvus corax) is a ubiquitous species in the Mojave Desert of southern Nevada and California. From 5 to 24 May 2014, using remote trail cameras, we observed ravens repeatedly kleptoparasitizing food resources from the nest of a pair of Golden Eagles (Aquila chyrsaetos) in the Spring Mountains of southern Nevada. The ravens fed on nine (30%) of the 30 prey items delivered to the nest during the chick rearing period. Kleptoparasitic behavior by the ravens decreased as the eagle nestling matured to seven weeks of age, suggesting a narrow temporal window in which ravens can successfully engage in kleptoparasitic behavior at eagle nests. The observation of kleptoparasitism by Common Ravens at the nest suggests potential risks to young Golden Eagles from Common Ravens.

  3. Systemic Collyriclum faba (Trematoda: Collyriclidae) Infection in a Wild Common Raven ( Corvus corax ).

    Science.gov (United States)

    Mete, Aslı; Rogers, Krysta; Houston, Robin

    2017-01-01

    A hatch-year Common Raven ( Corvus corax ) with subcutaneous and internal pseudocysts, filled with fluid, containing a pair of adult trematodes and numerous eggs consistent with Collyriclum faba, died near a riverbank in California, US. While C. faba is incidental in many Passeriformes, this case was a fatal systemic infection.

  4. Explorative innovators and flexible use of social information in common ravens (Corvus corax) and carrion crows (Corvus corone).

    Science.gov (United States)

    Miller, Rachael; Schwab, Christine; Bugnyar, Thomas

    2016-11-01

    Innovation and social information use are influenced by individual characteristics, and are important for the creation and transmission of novel behavioral patterns. Here, we investigated which individual factors predict innovation rates and social transmission of information in a comparative study with identically reared common ravens (Corvus corax) and carrion crows (Corvus corone corone; Corvus corone cornix). In the innovation experiment (1), we presented the birds with a novel problem-solving task while alone, to determine which individuals would quickly solve ("innovators") or not solve ("noninnovators") this task. We then related these findings to sex, object exploration (frequency of novel item manipulation), object neophobia (latency to novel item interaction), and social rank position. We found that innovators were more explorative than noninnovators, although they did not differ significantly in social rank, object neophobia or sex. In the social information use experiments (2 & 3), subjects first observed a model (Exp. 2: conspecific, heterospecific; Exp. 3: conspecific innovator & noninnovator) demonstrate a specific color selection in a 2-choice cup task, before being allowed to make their own cup selection. Innovator and noninnovator observers did not significantly differ in their tendency to use social information, that is, to select the demonstrated cup first, from a conspecific or heterospecific model. Furthermore, observers did not preferentially use social information from an innovator over a noninnovator model. We discuss our findings in relation to the likely benefits of flexible information use, and the role of other model characteristics, such as relationships, on the use of social information. (PsycINFO Database Record

  5. Development and characterization of microsatellite loci for common raven (Corvus corax) and cross species amplification in other Corvidae

    OpenAIRE

    Pruett, Christin L.; Wan, Leping; Li, Tianyu; Spern, Cory; Lance, Stacey L.; Glenn, Travis; Faircloth, Brant; Winker, Kevin

    2015-01-01

    Background A priority for conservation is the identification of endemic populations. We developed microsatellite markers for common raven (Corvus corax), a bird species with a Holarctic distribution, to identify and assess endemic populations in Alaska. Results From a total of 50 microsatellite loci, we isolated and characterized 15 loci. Eight of these loci were polymorphic and readily scoreable. Eighteen to 20 common ravens from Fairbanks, Alaska were genotyped showing the following variabi...

  6. High seroprevalence of Toxoplasma gondii and Neospora caninum in the Common raven (Corvus corax) in the Northeast of Spain

    Science.gov (United States)

    In recent years, multiple cases of aggressive behaviour of Common ravens (Corvus corax) have been reported by farmers in Catalonia (NE Spain), including attacking of newborn animals and consumption of dead foetuses. In the present study, seroprevalence of Toxoplasma gondii and Neospora caninum was d...

  7. Familiarity with the experimenter influences the performance of Common ravens (Corvus corax) and Carrion crows (Corvus corone corone) in cognitive tasks.

    Science.gov (United States)

    Cibulski, Lara; Wascher, Claudia A F; Weiss, Brigitte M; Kotrschal, Kurt

    2014-03-01

    When humans and animals interact with one another over an extended time span they familiarise and may develop a relationship, which can exert an influence on both partners. For example, the behaviour of an animal in experiments may be affected by its relationship to the human experimenter. However, few studies have systematically examined the impact of human-animal relationships on experimental results. In the present study we investigated if familiarity with a human experimenter influences the performance of Common ravens (Corvus corax) and Carrion crows (Corvus corone corone) in interactive tasks. Birds were tested in two interactive cognitive tasks (exchange, object choice) by several experimenters representing different levels of familiarity (long and short-term). Our findings show that the birds participated more often in both tasks and were more successful in the exchange task when working with long-term experimenters than when working with short-term experimenters. Behavioural observations indicate that anxiety did not inhibit experimental performance but that the birds' motivation to work differed between the two kinds of experimenters, familiar and less familiar. We conclude that human-animal relationships (i.e. familiarity) may affect the experimental performance of corvids in interactive cognitive tasks.

  8. Ontogeny of Social Relations and Coalition Formation in Common Ravens (Corvus corax).

    Science.gov (United States)

    Loretto, Matthias-Claudio; Fraser, Orlaith N; Bugnyar, Thomas

    The social intelligence hypothesis, originally developed for primates to explain their high intelligence and large relative brain size, assumes that challenges posed by social life in complex societies with many group members lead to the evolution of advanced cognitive abilities. In birds, pair-bonded species have larger brains than non-pair bonded species, indicating that the quality of social relationships better predicts social complexity than group size. Ravens are a long-term monogamous and territorial species, renowned for their sophisticated socio-cognitive skills and complex social relationships. Notably, during their early years they live in fission-fusion-like non-breeder societies in which social relationships could be of particular importance. Here we observed the development of dominance and affiliative relationships in 12 hand-raised captive ravens, examining the influence of age, sex and kinship on social interactions. Furthermore, we investigated at which developmental step a stable hierarchy emerged, whether third-party interventions played a role and how selectively birds intervened in others' conflicts. At 4-5 months post-fledging, we found an increase in socio-positive behaviour and a decrease in aggression, along with the establishment of a linear dominance rank hierarchy. In line with kin selection theory, siblings exhibited a greater degree of tolerance and engaged in more socio-positive behaviour. In their first few months, ravens frequently intervened in others' conflicts but supported mainly the aggressor; later on, their support became more selective towards kin and close social partners. These findings indicate that ravens engage in sophisticated social behaviours and form stable relationships already in their first year of life.

  9. The Effects of Site Characterization Activities on the Abundance of Ravens (Corvus corax) in the Yucca Mountain Area

    Energy Technology Data Exchange (ETDEWEB)

    P.E. Lederle

    1998-05-08

    In response to the Nuclear Waste Policy Act of 1982 and the Nuclear Waste Policy Amendments Act of 1987, the U.S. Department of Energy (DOE) developed and is implementing the Yucca Mountain Site Characterization Project. Raven abundance was measured from August 1991 through August 1995 along treatment and control routes to evaluate whether site characterization activities resulted in increased raven abundance at Yucca Mountain. This study fulfills the requirement set forth in the incidental take provisions of the Biological Opinion that DOE monitor the abundance of ravens at Yucca Mountain. Ravens were more abundant at Yucca Mountain than in the control area, and raven abundance in both areas increased over time. However, the magnitude of differences between Yucca Mountain and control surveys did not change over time, indicating that the increase in raven abundance observed during this study was not related to site characterization activities. Increases over time on both Yucca Mountain and control routes are consistent with increases in raven abundance in the Mojave Desert reported by the annual Breeding Bird Survey of the US. Fish and Wildlife Service. Evidence from the Desert Tortoise Monitoring Program at Yucca Mountain suggests that ravens are not a significant predator of small tortoises in this locale. Carcasses of small tortoises (less than 110 mm in length) collected during the study showed little evidence of raven predation, and 59 radiomarked hatchlings that were monitored on a regular basis were not preyed upon by ravens. Overall, no direct evidence of raven predation on tortoises was observed during this study. Small tortoises are probably encountered so infrequently by ravens that they are rarely exploited as a food source. This is likely due to the relatively low abundance of both desert tortoises and ravens in the Yucca Mountain area.

  10. Reavistamientos de Corvus corax en las tierras altas de Nicaragua

    Science.gov (United States)

    Francisco J. Muñoz; Wayne J. Arendt; Marvin A. Tórrez; Liliana Chavarría; Arlen Pinell.

    2009-01-01

    The common raven (Corvus corax) is one of the most widespread naturally occurring birds in the world. Thus, from a conservation and management perspective, it is of minimum concern. Yet, in Nicaragua, observations of this species are few and not well documented. After a lapse of almost 40 years since the last written report, we describe recent sightings from the...

  11. Ravens attribute visual access to unseen competitors.

    Science.gov (United States)

    Bugnyar, Thomas; Reber, Stephan A; Buckner, Cameron

    2016-02-02

    Recent studies purported to demonstrate that chimpanzees, monkeys and corvids possess a basic Theory of Mind, the ability to attribute mental states like seeing to others. However, these studies remain controversial because they share a common confound: the conspecific's line of gaze, which could serve as an associative cue. Here, we show that ravens Corvus corax take into account the visual access of others, even when they cannot see a conspecific. Specifically, we find that ravens guard their caches against discovery in response to the sounds of conspecifics when a peephole is open but not when it is closed. Our results suggest that ravens can generalize from their own perceptual experience to infer the possibility of being seen. These findings confirm and unite previous work, providing strong evidence that ravens are more than mere behaviour-readers.

  12. Raptor and Raven Necropsy Data from the Snake River Birds of Prey National Conservation Area, 2000-2004

    Data.gov (United States)

    Oak Ridge National Laboratory — The data are results of clinical necropsies of raptors and common ravens (Corvus corax) done in cooperation with pathologists at the Veterinary Teaching Hospital and...

  13. Raptor and Raven Necropsy Data from the Snake River Birds of Prey National Conservation Area, 2000-2004

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The data are results of clinical necropsies of raptors and common ravens (Corvus corax) done in cooperation with pathologists at the Veterinary Teaching Hospital and...

  14. Common raven juvenile survival in a human-augmented landscape

    Science.gov (United States)

    Webb, William C.; Boarman, William I.; Rotenberry, John T.

    2004-01-01

    Anthropogenic resource subsidies have contributed to the dramatic increase in the abundance of Common Ravens (Corvus corax) in the western Mojave Desert, California, during the past 30 years. To better understand the effects of these subsidies on raven demography, we examined whether survival to juvenile departure from the natal territory could be predicted by a set of environmental and morphological variables, such as nest proximity to anthropogenic resources and juvenile condition. We captured 240 juvenile ravens over 2 years and marked them prior to fledging. Nest proximity to anthropogenic resources and earlier fledging dates significantly predicted raven juvenile survival to departure from the natal territory. The best-fitting mark-recapture models predicted postdeparture survival as a function of time since fledging, nest proximity to anthropogenic resources, and year hatched. The positive effect of nest proximity to anthropogenic resources influenced postdeparture survival for at least 9 months after fledging, as revealed by the mark-recapture analysis. Annual survival was 47% for first-year, 81% for second-year, and 83% for third-year birds. Our results support the hypothesis that anthropogenic resources contribute to increasing raven numbers via increased juvenile survival to departure as well as increased postdeparture survival. We expect raven numbers to grow in concert with the growing human presence in the Mojave Desert unless raven access to anthropogenic resources is diminished.

  15. Common raven occurrence in relation to energy transmission line corridors transiting human-altered sagebrush steppe

    Science.gov (United States)

    Coates, Peter S.; Howe, Kristy B.; Casazza, Michael L.; Delehanty, David J.

    2014-01-01

    Energy-related infrastructure and other human enterprises within sagebrush steppe of the American West often results in changes that promote common raven (Corvus corax; hereafter, raven) populations. Ravens, a generalist predator capable of behavioral innovation, present a threat to many species of conservation concern. We evaluate the effects of detailed features of an altered landscape on the probability of raven occurrence using extensive raven survey (n= 1045) and mapping data from southern Idaho, USA. We found nonlinear relationships between raven occurrence and distances to transmission lines, roads, and facilities. Most importantly, raven occurrence was greater with presence of transmission lines up to 2.2 km from the corridor.We further explain variation in raven occurrence along anthropogenic features based on the amount of non-native vegetation and cover type edge, such that ravens select fragmented sagebrush stands with patchy, exotic vegetative introgression. Raven occurrence also increased with greater length of edge formed by the contact of big sagebrush (Artemisia tridentate spp.) with non-native vegetation cover types. In consideration of increasing alteration of sagebrush steppe, these findings will be useful for planning energy transmission corridor placement and other management activities where conservation of sagebrush obligate species is a priority.

  16. Ravens intervene in others' bonding attempts.

    Science.gov (United States)

    Massen, Jorg J M; Szipl, Georgine; Spreafico, Michela; Bugnyar, Thomas

    2014-11-17

    The competition for power in a complex social world is hypothesized to be a driving force in the evolution of intelligence. More specifically, power may be obtained not only by brute force but also by social strategies resembling human politics. Most empirical evidence comes from primate studies that report unprovoked aggression by dominants to maintain power by spreading fear and third-party interventions in conflicts. Coalitionary support has also been described in other animals and is often linked to social bonding. As coalitions can lead to a gain in power and fitness benefits, individuals may try to prevent coalitionary support or indirectly prevent others from forming social bonds that might lead to coalitions. Although there is some empirical evidence that coalitionary support can be manipulated, little is known about the indirect strategy. We show here that wild ravens (Corvus corax) regularly intervene in affiliative interactions of others even though such interventions are potentially risky and without immediate benefits. Moreover, the identities of both interveners and intervened pairs are not randomly distributed. Ravens with existing ties initiate most interventions, and ravens that are creating new ties are most likely to be the targets of interventions. These patterns are consistent with the idea that interventions function to prevent others from forming alliances and consequently becoming future competitors. We thus show previously undescribed social maneuvers in the struggle for power. These maneuvers are likely to be of importance in other social species as well.

  17. Social networks predict selective observation and information spread in ravens

    Science.gov (United States)

    Rubenstein, Daniel I.; Bugnyar, Thomas; Hoppitt, William; Mikus, Nace; Schwab, Christine

    2016-01-01

    Animals are predicted to selectively observe and learn from the conspecifics with whom they share social connections. Yet, hardly anything is known about the role of different connections in observation and learning. To address the relationships between social connections, observation and learning, we investigated transmission of information in two raven (Corvus corax) groups. First, we quantified social connections in each group by constructing networks on affiliative interactions, aggressive interactions and proximity. We then seeded novel information by training one group member on a novel task and allowing others to observe. In each group, an observation network based on who observed whose task-solving behaviour was strongly correlated with networks based on affiliative interactions and proximity. Ravens with high social centrality (strength, eigenvector, information centrality) in the affiliative interaction network were also central in the observation network, possibly as a result of solving the task sooner. Network-based diffusion analysis revealed that the order that ravens first solved the task was best predicted by connections in the affiliative interaction network in a group of subadult ravens, and by social rank and kinship (which influenced affiliative interactions) in a group of juvenile ravens. Our results demonstrate that not all social connections are equally effective at predicting the patterns of selective observation and information transmission. PMID:27493780

  18. Social networks predict selective observation and information spread in ravens.

    Science.gov (United States)

    Kulahci, Ipek G; Rubenstein, Daniel I; Bugnyar, Thomas; Hoppitt, William; Mikus, Nace; Schwab, Christine

    2016-07-01

    Animals are predicted to selectively observe and learn from the conspecifics with whom they share social connections. Yet, hardly anything is known about the role of different connections in observation and learning. To address the relationships between social connections, observation and learning, we investigated transmission of information in two raven (Corvus corax) groups. First, we quantified social connections in each group by constructing networks on affiliative interactions, aggressive interactions and proximity. We then seeded novel information by training one group member on a novel task and allowing others to observe. In each group, an observation network based on who observed whose task-solving behaviour was strongly correlated with networks based on affiliative interactions and proximity. Ravens with high social centrality (strength, eigenvector, information centrality) in the affiliative interaction network were also central in the observation network, possibly as a result of solving the task sooner. Network-based diffusion analysis revealed that the order that ravens first solved the task was best predicted by connections in the affiliative interaction network in a group of subadult ravens, and by social rank and kinship (which influenced affiliative interactions) in a group of juvenile ravens. Our results demonstrate that not all social connections are equally effective at predicting the patterns of selective observation and information transmission.

  19. Brains, tools, innovation and biogeography in crows and ravens

    DEFF Research Database (Denmark)

    Jønsson, Knud Andreas; Fabre, Pierre-Henri Fréderic; Irestedt, Martin

    2012-01-01

    alone does not explain tool use, innovative feeding strategies and dispersal success within crows.CONCLUSIONS:Our study supports monophyly of the genus Corvus and further demonstrates the direction and timing of colonization from the area of origin in the Palaearctic to other continents and archipelagos......BACKGROUND:Crows and ravens (Passeriformes: Corvus) are large-brained birds with enhanced cognitive abilities relative to other birds. They are among the few non-hominid organisms on Earth to be considered intelligent and well-known examples exist of several crow species having evolved innovative...... in applying tools when foraging and (ii) has some correlative role in the success of colonization of islands. Our results demonstrate that crows originated in the Palaearctic in the Miocene from where they dispersed to North America and the Caribbean, Africa and Australasia. We find that relative brain size...

  20. Effects of anthropogenic developments on common raven nesting biology in the West Mojave Desert.

    Science.gov (United States)

    Kristan, William B; Boarman, William I

    2007-09-01

    Subsidized predators may affect prey abundance, distribution, and demography. Common Ravens (Corvus corax) are anthropogenically subsidized throughout their range and, in the Mojave Desert, have increased in number dramatically over the last 3-4 decades. Human-provided food resources are thought to be important drivers of raven population growth, but human developments add other features as well, such as nesting platforms. From 1996 to 2000, we examined the nesting ecology of ravens in the Mojave Desert, relative to anthropogenic developrhent. Ravens nested disproportionately near point sources of food and water subsidies (such as towns, landfills, and ponds) but not near roads (sources of road-killed carrion), even though both sources of subsidy enhanced fledging success. Initiation of breeding activity was more likely when a nest from the previous year was present at the start of a breeding season but was not affected by access to food. The relative effect of environmental modifications on fledging success varied from year to year, but the effect of access to human-provided resources was comparatively consistent, suggesting that humans provide consistently high-quality breeding habitat for ravens. Anthropogenic land cover types in the desert are expected to promote raven population growth and to allow ravens to occupy parts of the desert that otherwise would not support them. Predatory impacts of ravens in the Mojave Desert can therefore be considered indirect effects of anthropogenic development.

  1. Effects of anthropogenic developments on common Raven nesting biology in the west Mojave Desert

    Science.gov (United States)

    Kristan, W. B.; Boarman, W.I.

    2007-01-01

    Subsidized predators may affect prey abundance, distribution, and demography. Common Ravens (Corvus corax) are anthropogenically subsidized throughout their range and, in the Mojave Desert, have increased in number dramatically over the last 3-4 decades. Human-provided food resources are thought to be important drivers of raven population growth, but human developments add other features as well, such as nesting platforms. From 1996 to 2000, we examined the nesting ecology of ravens in the Mojave Desert, relative to anthropogenic development. Ravens nested disproportionately near point sources of food and water subsidies (such as towns, landfills, and ponds) but not near roads (sources of road-killed carrion), even though both sources of subsidy enhanced fledging success. Initiation of breeding activity was more likely when a nest from the previous year was present at the start of a breeding season but was not affected by access to food. The relative effect of environmental modifications on fledging success varied from year to year, but the effect of access to humanprovided resources was comparatively consistent, suggesting that humans provide consistently high-quality breeding habitat for ravens. Anthropogenic land cover types in the desert are expected to promote raven population growth and to allow ravens to occupy parts of the desert that otherwise would not support them. Predatory impacts of ravens in the Mojave Desert can therefore be considered indirect effects of anthropogenic development. ?? 2007 by the Ecological Society of America.

  2. Brains, tools, innovation and biogeography in crows and ravens.

    Science.gov (United States)

    Jønsson, Knud A; Fabre, Pierre-Henri; Irestedt, Martin

    2012-05-29

    Crows and ravens (Passeriformes: Corvus) are large-brained birds with enhanced cognitive abilities relative to other birds. They are among the few non-hominid organisms on Earth to be considered intelligent and well-known examples exist of several crow species having evolved innovative strategies and even use of tools in their search for food. The 40 Corvus species have also been successful dispersers and are distributed on most continents and in remote archipelagos. This study presents the first molecular phylogeny including all species and a number of subspecies within the genus Corvus. We date the phylogeny and determine ancestral areas to investigate historical biogeographical patterns of the crows. Additionally, we use data on brain size and a large database on innovative behaviour and tool use to test whether brain size (i) explains innovative behaviour and success in applying tools when foraging and (ii) has some correlative role in the success of colonization of islands. Our results demonstrate that crows originated in the Palaearctic in the Miocene from where they dispersed to North America and the Caribbean, Africa and Australasia. We find that relative brain size alone does not explain tool use, innovative feeding strategies and dispersal success within crows. Our study supports monophyly of the genus Corvus and further demonstrates the direction and timing of colonization from the area of origin in the Palaearctic to other continents and archipelagos. The Caribbean was probably colonized from North America, although some North American ancestor may have gone extinct, and the Pacific was colonized multiple times from Asia and Australia. We did not find a correlation between relative brain size, tool use, innovative feeding strategies and dispersal success. Hence, we propose that all crows and ravens have relatively large brains compared to other birds and thus the potential to be innovative if conditions and circumstances are right.

  3. RAVEN Beta Release

    Energy Technology Data Exchange (ETDEWEB)

    Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert Arthur [Idaho National Lab. (INL), Idaho Falls, ID (United States); Wang, Congjian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Maljovec, Daniel Patrick [Idaho National Lab. (INL), Idaho Falls, ID (United States); Talbot, Paul William [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-02-01

    This documents the release of the Risk Analysis Virtual Environment (RAVEN) code. A description of the RAVEN code is provided, and discussion of the release process for the M2LW-16IN0704045 milestone. The RAVEN code is a generic software framework to perform parametric and probabilistic analysis based on the response of complex system codes. RAVEN is capable of investigating the system response as well as the input space using Monte Carlo, Grid, or Latin Hyper Cube sampling schemes, but its strength is focused toward system feature discovery, such as limit surfaces, separating regions of the input space leading to system failure, using dynamic supervised learning techniques. RAVEN has now increased in maturity enough for the Beta 1.0 release.

  4. Landscape characteristics and livestock presence influence common ravens: Relevance to greater sage-grouse conservation

    Science.gov (United States)

    Coates, Peter S.; Brussee, Brianne E.; Howe, Kristy; Gustafson, K. Ben; Casazza, Michael L.; Delehanty, David J.

    2016-01-01

    Common raven (Corvus corax; hereafter, raven) population abundance in the sagebrush steppe of the American West has increased threefold during the previous four decades, largely as a result of unintended resource subsidies from human land-use practices. This is concerning because ravens frequently depredate nests of species of conservation concern, such as greater sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse). Grazing by livestock in sagebrush ecosystems is common practice on most public lands, but associations between livestock and ravens are poorly understood. The primary objective of this study was to identify the effects of livestock on raven occurrence while accounting for landscape characteristics within human-altered sagebrush steppe habitat, particularly in areas occupied by breeding sage-grouse. Using data from southeastern Idaho collected during spring and summer across 3 yr, we modeled raven occurrence as a function of the presence of livestock while accounting for multiple landscape covariates, including land cover features, topographical features, and proximity to sage-grouse lek sites (breeding grounds), as well as site-level anthropogenic features. While accounting for landscape characteristics, we found that the odds of raven occurrence increased 45.8% in areas where livestock were present. In addition, ravens selected areas near sage-grouse leks, with the odds of occurrence decreasing 8.9% for every 1-km distance, increase away from the lek. We did not find an association between livestock use and distance to lek. We also found that ravens selected sites with relatively lower elevation containing increased amounts of cropland, wet meadow, and urbanization. Limiting raven access to key anthropogenic subsidies and spatially segregating livestock from sage-grouse breeding areas would likely reduce exposure of predatory ravens to sage-grouse nests and chicks.

  5. Observations of territorial breeding common ravens caching eggs of greater sage-grouse

    Science.gov (United States)

    Howe, Kristy B.; Coates, Peter S.

    2015-01-01

    Previous investigations using continuous video monitoring of greater sage-grouse Centrocercus urophasianus nests have unambiguously identified common ravens Corvus corax as an important egg predator within the western United States. The quantity of greater sage-grouse eggs an individual common raven consumes during the nesting period and the extent to which common ravens actively hunt greater sage-grouse nests are largely unknown. However, some evidence suggests that territorial breeding common ravens, rather than nonbreeding transients, are most likely responsible for nest depredations. We describe greater sage-grouse egg depredation observations obtained opportunistically from three common raven nests located in Idaho and Nevada where depredated greater sage-grouse eggs were found at or in the immediate vicinity of the nest site, including the caching of eggs in nearby rock crevices. We opportunistically monitored these nests by counting and removing depredated eggs and shell fragments from the nest sites during each visit to determine the extent to which the common raven pairs preyed on greater sage-grouse eggs. To our knowledge, our observations represent the first evidence that breeding, territorial pairs of common ravens cache greater sage-grouse eggs and are capable of depredating multiple greater sage-grouse nests.

  6. RAVEN Quality Assurance Activities

    Energy Technology Data Exchange (ETDEWEB)

    Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-09-01

    This report discusses the quality assurance activities needed to raise the Quality Level of Risk Analysis in a Virtual Environment (RAVEN) from Quality Level 3 to Quality Level 2. This report also describes the general RAVEN quality assurance activities. For improving the quality, reviews of code changes have been instituted, more parts of testing have been automated, and improved packaging has been created. For upgrading the quality level, requirements have been created and the workflow has been improved.

  7. RAVEN Theory Manual

    Energy Technology Data Exchange (ETDEWEB)

    Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States); Wang, Congjian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Maljovec, Daniel Patrick [Idaho National Lab. (INL), Idaho Falls, ID (United States); Talbot, Paul William [Idaho National Lab. (INL), Idaho Falls, ID (United States); Smith, Curtis Lee [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-06-01

    RAVEN is a software framework able to perform parametric and stochastic analysis based on the response of complex system codes. The initial development was aimed at providing dynamic risk analysis capabilities to the thermohydraulic code RELAP-7, currently under development at Idaho National Laboratory (INL). Although the initial goal has been fully accomplished, RAVEN is now a multi-purpose stochastic and uncertainty quantification platform, capable of communicating with any system code. In fact, the provided Application Programming Interfaces (APIs) allow RAVEN to interact with any code as long as all the parameters that need to be perturbed are accessible by input files or via python interfaces. RAVEN is capable of investigating system response and explore input space using various sampling schemes such as Monte Carlo, grid, or Latin hypercube. However, RAVEN strength lies in its system feature discovery capabilities such as: constructing limit surfaces, separating regions of the input space leading to system failure, and using dynamic supervised learning techniques. The development of RAVEN started in 2012 when, within the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program, the need to provide a modern risk evaluation framework arose. RAVEN’s principal assignment is to provide the necessary software and algorithms in order to employ the concepts developed by the Risk Informed Safety Margin Characterization (RISMC) program. RISMC is one of the pathways defined within the Light Water Reactor Sustainability (LWRS) program. In the RISMC approach, the goal is not just to identify the frequency of an event potentially leading to a system failure, but the proximity (or lack thereof) to key safety-related events. Hence, the approach is interested in identifying and increasing the safety margins related to those events. A safety margin is a numerical value quantifying the probability that a safety metric (e.g. peak pressure in a pipe) is exceeded under

  8. RAVEN User Manual

    Energy Technology Data Exchange (ETDEWEB)

    Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert Arthur [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Sen, Ramazan Sonat [Idaho National Lab. (INL), Idaho Falls, ID (United States); Wang, Congjian [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-02-01

    RAVEN is a generic software framework to perform parametric and probabilistic analysis based on the response of complex system codes. The initial development was aimed to provide dynamic risk analysis capabilities to the Thermo-Hydraulic code RELAP-7, currently under development at the Idaho National Laboratory (INL). Although the initial goal has been fully accomplished, RAVEN is now a multi-purpose probabilistic and uncertainty quantification platform, capable to agnostically communicate with any system code. This agnosticism includes providing Application Programming Interfaces (APIs). These APIs are used to allow RAVEN to interact with any code as long as all the parameters that need to be perturbed are accessible by input files or via python interfaces. RAVEN is capable of investigating the system response, and investigating the input space using Monte Carlo, Grid, or Latin Hyper Cube sampling schemes, but its strength is focused toward system feature discovery, such as limit surfaces, separating regions of the input space leading to system failure, using dynamic supervised learning techniques. The development of RAVEN started in 2012, when, within the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program, the need to provide a modern risk evaluation framework became stronger. RAVEN principal assignment is to provide the necessary software and algorithms in order to employ the concept developed by the Risk Informed Safety Margin Characterization (RISMC) program. RISMC is one of the pathways defined within the Light Water Reactor Sustainability (LWRS) program. In the RISMC approach, the goal is not just the individuation of the frequency of an event potentially leading to a system failure, but the closeness (or not) to key safety-related events. Hence, the approach is interested in identifying and increasing the safety margins related to those events. A safety margin is a numerical value quantifying the probability that a safety metric (e.g. for an

  9. RAVEN User Manual

    Energy Technology Data Exchange (ETDEWEB)

    Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert Arthur [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Sen, Ramazan Sonat [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-10-01

    RAVEN is a generic software framework to perform parametric and probabilistic analysis based on the response of complex system codes. The initial development was aimed to provide dynamic risk analysis capabilities to the Thermo-Hydraulic code RELAP-7, currently under development at the Idaho National Laboratory (INL). Although the initial goal has been fully accomplished, RAVEN is now a multi-purpose probabilistic and uncertainty quantification platform, capable to agnostically communicate with any system code. This agnosticism includes providing Application Programming Interfaces (APIs). These APIs are used to allow RAVEN to interact with any code as long as all the parameters that need to be perturbed are accessible by inputs files or via python interfaces. RAVEN is capable of investigating the system response, and investigating the input space using Monte Carlo, Grid, or Latin Hyper Cube sampling schemes, but its strength is focused toward system feature discovery, such as limit surfaces, separating regions of the input space leading to system failure, using dynamic supervised learning techniques. The development of RAVEN has started in 2012, when, within the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program, the need to provide a modern risk evaluation framework became stronger. RAVEN principal assignment is to provide the necessary software and algorithms in order to employ the concept developed by the Risk Informed Safety Margin Characterization (RISMC) program. RISMC is one of the pathways defined within the Light Water Reactor Sustainability (LWRS) program. In the RISMC approach, the goal is not just the individuation of the frequency of an event potentially leading to a system failure, but the closeness (or not) to key safety-related events. Hence, the approach is interested in identifying and increasing the safety margins related to those events. A safety margin is a numerical value quantifying the probability that a safety metric (e.g. for

  10. RAVEN User Manual

    Energy Technology Data Exchange (ETDEWEB)

    Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert Arthur [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Sen, Ramazan Sonat [Idaho National Lab. (INL), Idaho Falls, ID (United States); Wang, Congjian [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2017-03-01

    RAVEN is a generic software framework to perform parametric and probabilistic analy- sis based on the response of complex system codes. The initial development was aimed to provide dynamic risk analysis capabilities to the Thermo-Hydraulic code RELAP-7, currently under development at the Idaho National Laboratory (INL). Although the initial goal has been fully accomplished, RAVEN is now a multi-purpose probabilistic and uncer- tainty quantification platform, capable to agnostically communicate with any system code. This agnosticism includes providing Application Programming Interfaces (APIs). These APIs are used to allow RAVEN to interact with any code as long as all the parameters that need to be perturbed are accessible by inputs files or via python interfaces. RAVEN is capable of investigating the system response, and investigating the input space using Monte Carlo, Grid, or Latin Hyper Cube sampling schemes, but its strength is focused to- ward system feature discovery, such as limit surfaces, separating regions of the input space leading to system failure, using dynamic supervised learning techniques. The development of RAVEN has started in 2012, when, within the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program, the need to provide a modern risk evaluation framework became stronger. RAVEN principal assignment is to provide the necessary software and algorithms in order to employ the concept developed by the Risk Informed Safety Margin Characterization (RISMC) program. RISMC is one of the pathways defined within the Light Water Reactor Sustainability (LWRS) program. In the RISMC approach, the goal is not just the individuation of the frequency of an event potentially leading to a system failure, but the closeness (or not) to key safety-related events. Hence, the approach is in- terested in identifying and increasing the safety margins related to those events. A safety margin is a numerical value quantifying the probability that a safety metric (e

  11. Pavonis Mons

    Science.gov (United States)

    2002-01-01

    (Released 7 May 2002) The Science Four exceptionally large volcanoes in a region called Tharsis are unique to the western hemisphere of Mars. Three of the Tharsis volcanoes, Ascraeus Mons, Pavonis Mons, and Arsia Mons, are aligned along a NE - SW trend, with Pavonis in the middle, straddling the equator. Olympus Mons, the fourth Tharsis volcano and the largest in the solar system, is located NW of Pavonis Mons. At the top right of the image, the rim of the caldera of Pavonis Mons is just barely visible, with steep NE-facing cliffs formed by the collapse of a portion of the volcano's summit. At the southwest edge of the caldera, additional fractures are apparent and may someday collapse, making the summit caldera even larger. This image of Pavonis Mons also demonstrates some of the distinctive characteristics of the martian surface in the Tharsis region. Tharsis is very dusty; the dust covers everything like fresh snow, which is the reason why there is very little contrast in the surface materials as compared to other THEMIS images that show apparently bright and dark surfaces in the same picture. This dust cover makes it difficult to distinguish different geologic or geomorphic units in the area, and even the piles of lava flows that constructed this volcano are difficult to make out. Most of the craters on the volcano are small, a few tens of meters to kilometers in diameter, suggesting that this surface is a relatively young one on Mars (the older a surface is, the more and larger craters it has). In the lower third of the image, linear arrangements of small, round pits can be seen. These features are commonly called 'pit chains' and most likely represent the collapse of lava tubes. Lava tubes are like a subway, allowing molten rock to move from place to place underground. A particularly large pit near the bottom center of the image looks a lot like a crater. However, the lack of degradation of the rim of this feature suggests that if it were an impact crater, it

  12. RavenDB high performance

    CERN Document Server

    Ritchie, Brian

    2013-01-01

    RavenDB High Performance is comprehensive yet concise tutorial that developers can use to.This book is for developers & software architects who are designing systems in order to achieve high performance right from the start. A basic understanding of RavenDB is recommended, but not required. While the book focuses on advanced topics, it does not assume that the reader has a great deal of prior knowledge of working with RavenDB.

  13. Corvus

    Science.gov (United States)

    Murdin, P.

    2000-11-01

    (the Crow; abbrev. Crv, gen. Corvi; area 184 sq. deg.) A southern constellation which lies between Virgo and Hydra, and culminates at midnight in late March. It represents the crow that in Greek mythology was sent by the god Apollo with a cup for water but loitered at a fig tree until the fruit became ripe and then returned, having eaten its fill, with a water-snake which it blamed for delaying i...

  14. Ravens satellite mission concept study

    CERN Document Server

    Donovan, Eric F

    2011-01-01

    The concept for Ravens satellite mission was proposed in response to a CSA AO for potential Canadian mission contributions to the International Living With a Star (ILWS) program. Ravens was conceived of to fill an important gap in the ILWS program: global imaging. Ravens will build on the heritage of world-class global imaging carried out in Canada. It would do much more than provide global observations to complete the system level capabilities of ILWS. Ravens would be comprised of two satellites on elliptical polar orbits, relatively phased on those orbits to provide the first-ever continuous (ie., 24 hours per day 7 days per week) global imaging of the northern hemisphere auroral and polar cap regions. This would provide the first-ever unbroken sequences of global images of the auroral response during long duration geomagnetic processes like storms and steady magnetospheric convection events. Ravens could track the spatio-temporal evolution of the global electron and proton auroral distribution, and would o...

  15. Software infrastructure progress in the RAVEN code

    Energy Technology Data Exchange (ETDEWEB)

    Cogliati, Joshua J. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Permann, Cody J. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-03-01

    The milestones have been achieved. RAVEN has been migrated to Gitlab which adds new abilities for code review and management. Standalone RAVEN framework packages have been created for OSX and two Linux distributions.

  16. Landscape alterations influence differential habitat use of nesting buteos and ravens within sagebrush ecosystem: implications for transmission line development

    Science.gov (United States)

    Coates, Peter S.; Howe, Kristy B.; Casazza, Michael L.; Delehanty, David J.

    2014-01-01

    A goal in avian ecology is to understand factors that influence differences in nesting habitat and distribution among species, especially within changing landscapes. Over the past 2 decades, humans have altered sagebrush ecosystems as a result of expansion in energy production and transmission. Our primary study objective was to identify differences in the use of landscape characteristics and natural and anthropogenic features by nesting Common Ravens (Corvus corax) and 3 species of buteo (Swainson's Hawk [Buteo swainsoni], Red-tailed Hawk [B. jamaicensis], and Ferruginous Hawk [B. regalis]) within a sagebrush ecosystem in southeastern Idaho. During 2007–2009, we measured multiple environmental factors associated with 212 nest sites using data collected remotely and in the field. We then developed multinomial models to predict nesting probabilities by each species and predictive response curves based on model-averaged estimates. We found differences among species related to nesting substrate (natural vs. anthropogenic), agriculture, native grassland, and edge (interface of 2 cover types). Most important, ravens had a higher probability of nesting on anthropogenic features (0.80) than the other 3 species (Artemisia spp.), favoring increased numbers of nesting ravens and fewer nesting Ferruginous Hawks. Our results indicate that habitat alterations, fragmentation, and forthcoming disturbances anticipated with continued energy development in sagebrush steppe ecosystems can lead to predictable changes in raptor and raven communities.

  17. Comparative phylogeography of two crow species: jungle crow Corvus macrorhynchos and carrion crow Corvus corone.

    Science.gov (United States)

    Kryukov, Alexey; Spiridonova, Liudmila; Nakamura, Sumio; Haring, Elisabeth; Suzuki, Hitoshi

    2012-08-01

    The jungle crow Corvus macrorhynchos Wagler, 1827, and the carrion crow Corvus corone L., 1758, are two closely related species with similar ecological requirements that occupy wide distribution ranges in the Palearctic. We studied patterns of their genetic variation by using sequences of the mitochondrial cytochrome b gene. Corvus macrorhynchos demonstrates a low level of variation and differentiation throughout its range, except for a highly diverged population of Cheju Island (Korea). The haplotype network shows two haplogroups. The island group comprises populations of Sakhalin, Hokkaido, Honshu, and Kyushu, while the haplotypes of Taiwan and Ryukyu Islands proved to be closer to the mainland group, which also includes populations from the Primorye, Khabarovsk, Amur, and Magadan regions in the Russian Far East. This pattern allowed us to develop a phylogeographic hypothesis regarding the two modes of settling of the island populations. Concerning C. corone, the presence of two distinct haplogroups was confirmed within the range of C. c. orientalis. Both haplogroups are found within the same populations in Kamchatka and North Sakhalin, which implies secondary contacts there. Populations of C. corone are found to be rather stable in the western parts of its range, while in the Far East populations experienced recent growth, as was observed for C. macrorhynchos in general. The two species appear to have passed through different evolutionary scenarios.

  18. Dynamic Event Tree Analysis Through RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    A. Alfonsi; C. Rabiti; D. Mandelli; J. Cogliati; R. A. Kinoshita; A. Naviglio

    2013-09-01

    Conventional Event-Tree (ET) based methodologies are extensively used as tools to perform reliability and safety assessment of complex and critical engineering systems. One of the disadvantages of these methods is that timing/sequencing of events and system dynamics is not explicitly accounted for in the analysis. In order to overcome these limitations several techniques, also know as Dynamic Probabilistic Risk Assessment (D-PRA), have been developed. Monte-Carlo (MC) and Dynamic Event Tree (DET) are two of the most widely used D-PRA methodologies to perform safety assessment of Nuclear Power Plants (NPP). In the past two years, the Idaho National Laboratory (INL) has developed its own tool to perform Dynamic PRA: RAVEN (Reactor Analysis and Virtual control ENvironment). RAVEN has been designed in a high modular and pluggable way in order to enable easy integration of different programming languages (i.e., C++, Python) and coupling with other application including the ones based on the MOOSE framework, developed by INL as well. RAVEN performs two main tasks: 1) control logic driver for the new Thermo-Hydraulic code RELAP-7 and 2) post-processing tool. In the first task, RAVEN acts as a deterministic controller in which the set of control logic laws (user defined) monitors the RELAP-7 simulation and controls the activation of specific systems. Moreover, RAVEN also models stochastic events, such as components failures, and performs uncertainty quantification. Such stochastic modeling is employed by using both MC and DET algorithms. In the second task, RAVEN processes the large amount of data generated by RELAP-7 using data-mining based algorithms. This paper focuses on the first task and shows how it is possible to perform the analysis of dynamic stochastic systems using the newly developed RAVEN DET capability. As an example, the Dynamic PRA analysis, using Dynamic Event Tree, of a simplified pressurized water reactor for a Station Black-Out scenario is presented.

  19. First RAVEN flight set for September

    Energy Technology Data Exchange (ETDEWEB)

    Anon

    2002-08-01

    An unmanned aerial vehicle called RAVEN, said to be capable of remote tracking of onshore and offshore oil and gas facilities, has been developed by a group of graduate students from Memorial University of Newfoundland. RAVEN is claimed to be capable of performing a number of tasks under its own control without the need for human intervention, including checking onshore pipelines for damage, or scouting the path of hazardous icebergs offshore. The RAVEN was created to meet the need for real time iceberg tracking and early hazard detection, supplementing or replacing the present method of RADARSAT images and tracking by manned aircraft. The RAVEN can be launched from any platform; it can fly under conditions that would be too dangerous for a manned aircraft. Currently in the prototype stage, the first trial flight for the RAVEN is expected to take place in September 2002. The first flight will consist of five GPS waypoints set relatively close together in a pattern to allow testing of the autopilot and the camera simultaneously. The second flight will be similar, but will also include tracking a section of a pipeline and record images at programmed GPS waypoints.

  20. Olympus Mons Landslide

    Science.gov (United States)

    2005-01-01

    [figure removed for brevity, see original site] The landslide in this VIS image originated from the steep escarpment which surrounds the Olympus Mons volcano on Mars. This landslide is located on the northern side of the volcano. Image information: VIS instrument. Latitude 23.2, Longitude 223.9 East (136.1 West). 100 meter/pixel resolution. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

  1. Generation Speed in Raven's Progressive Matrices Test.

    Science.gov (United States)

    Verguts, Tom; De Boeck, Paul; Maris, Eric

    1999-01-01

    Studied the role of response fluency on results of the Raven's Advanced Progressive Matrices (APM) Test by comparing scores on a test of generation speed (speed of generating rules that govern the items) with APM test performance for 127 Belgian undergraduates. Discusses the importance of generation speed in intelligence. (SLD)

  2. Generation speed in Raven's Progressive Matrices Test

    NARCIS (Netherlands)

    Verguts, T.; Boeck, P. De; Maris, E.G.G.

    1999-01-01

    In this paper, we investigate the role of response fluency on a well-known intelligence test, Raven's (1962) Advanced Progressive Matrices (APM) test. Critical in solving this test is finding rules that govern the items. Response fluency is conceptualized as generation speed or the speed at which a

  3. Ascraeus Mons Collapse Pits

    Science.gov (United States)

    2004-01-01

    [figure removed for brevity, see original site] We will be looking at collapse pits for the next two weeks. Collapse pits on Mars are formed in several ways. In volcanic areas, channelized lava flows can form roofs which insulate the flowing lava. These features are termed lava tubes on Earth and are common features in basaltic flows. After the lava has drained, parts of the roof of the tube will collapse under its own weight. These collapse pits will only be as deep as the bottom of the original lava tube. Another type of collapse feature associated with volcanic areas arises when very large eruptions completely evacuate the magma chamber beneath the volcano. The weight of the volcano will cause the entire edifice to subside into the void space below it. Structural features including fractures and graben will form during the subsidence. Many times collapse pits will form within the graben. In addition to volcanic collapse pits, Mars has many collapse pits formed when volatiles (such as subsurface ice) are released from the surface layers. As the volatiles leave, the weight of the surrounding rock causes collapse pits to form. These collapse pits are found on the flank of Ascraeus Mons. The pits and channels are all related to lava tube formation and emptying. Image information: IR instrument. Latitude 8, Longitude 253.9 East (106.1 West). 100 meter/pixel resolution. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal

  4. The influence of local enhancement on choice performances in African Grey parrots (Psittacus erithacus) and jackdaws (Corvus monedula).

    Science.gov (United States)

    Mikolasch, Sandra; Kotrschal, Kurt; Schloegl, Christian

    2012-11-01

    Being attentive to the behavior of others may be advantageous to gain important information, for example, on the location of food. Often, this is achieved through simple local enhancement. However, this is not always beneficial, as it may override cognitive abilities, with negative consequences. Grey parrots (Psittacus erithacus) and ravens have already succeeded in exclusion tasks, but carrion crows do so only when controlling for local enhancement, and jackdaws (Corvus monedula) fail entirely. Presently, we tested whether jackdaws would still be influenced by local enhancement in a simple choice-task. We compared their performance with those of Grey parrots. Since these birds did not respond to enhancement in the exclusion task, we expected them also to be less susceptible to enhancement here. In our tasks, two pieces of food were visibly hidden under two cups. Then one cup was lifted, the reward was shown to the bird and was either laid back underneath the cup or was removed. Alternatively, both manipulations were combined with the first reward being shown to the bird and the second one being removed or vice versa. Surprisingly, both species had a preference for the last handled cup, irrespective of whether it contained food or not. However, if the birds had to wait for 10 seconds after the presentation, the jackdaws performed better than the Grey parrots. Additionally, the delay improved the performance of both species in conditions in which the reward was removed last and deteriorated their performance in conditions in which the item was shown last.

  5. The House Crow (Corvus splendens): A Threat to New Zealand?

    OpenAIRE

    Diane L. Fraser; Glenn Aguilar; William Nagle; Mel Galbraith; Colin Ryall

    2015-01-01

    The house crow (Corvus splendens), a native of the Indian subcontinent, has shown a rapid expansion of habitat range across Eastern Africa, the Arabian Peninsula, Europe and Asia. It is an adaptable, gregarious commensal bird which is regarded globally as an important pest species due to its impacts on livestock, agricultural and horticultural crops and indigenous fauna and as a fecal contaminator of human environments and water resources. Two Maxent (v3.3.3k) models (A) with presence data in...

  6. Performing Probabilistic Risk Assessment Through RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    A. Alfonsi; C. Rabiti; D. Mandelli; J. Cogliati; R. Kinoshita

    2013-06-01

    The Reactor Analysis and Virtual control ENviroment (RAVEN) code is a software tool that acts as the control logic driver and post-processing engine for the newly developed Thermal-Hydraulic code RELAP-7. RAVEN is now a multi-purpose Probabilistic Risk Assessment (PRA) software framework that allows dispatching different functionalities: Derive and actuate the control logic required to simulate the plant control system and operator actions (guided procedures), allowing on-line monitoring/controlling in the Phase Space Perform both Monte-Carlo sampling of random distributed events and Dynamic Event Tree based analysis Facilitate the input/output handling through a Graphical User Interface (GUI) and a post-processing data mining module

  7. RavenDB 2.x beginner's guide

    CERN Document Server

    Tannir, Khaled

    2013-01-01

    Written in a friendly, example-driven Beginner's Guide format, there are plenty of step-by-step instructions and examples that are designed to help you get started with RavenDB. If you are a .NET developer, new to document-oriented databases, and you wish to learn how to build applications using NoSQL databases, then this book is for you. Experience with relational database systems will be helpful, but not necessary.

  8. The Young Man’s Madness in The Raven

    Institute of Scientific and Technical Information of China (English)

    WANG Chao

    2015-01-01

    The raven is a narrative poem written by American writer Edgar Allan Poe. It tells of a talking raven ’s mysterious visit in a midnight to a distraught lover, tracing the lover’s slow fall into madness. The lover is lamenting the loss of his beloved, Le⁃nore. The raven, sitting on a bust of Pallas, seems to further instigate his distress with its constant repetition of the word“Never⁃more”.

  9. Mitochondrial genomes of the jungle crow Corvus macrorhynchos (Passeriformes: Corvidae) from shed feathers and a phylogenetic analysis of genus Corvus using mitochondrial protein-coding genes.

    Science.gov (United States)

    Krzeminska, Urszula; Wilson, Robyn; Rahman, Sadequr; Song, Beng Kah; Seneviratne, Sampath; Gan, Han Ming; Austin, Christopher M

    2016-07-01

    The complete mitochondrial genomes of two jungle crows (Corvus macrorhynchos) were sequenced. DNA was extracted from tissue samples obtained from shed feathers collected in the field in Sri Lanka and sequenced using the Illumina MiSeq Personal Sequencer. Jungle crow mitogenomes have a structural organization typical of the genus Corvus and are 16,927 bp and 17,066 bp in length, both comprising 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal subunit genes, and a non-coding control region. In addition, we complement already available house crow (Corvus spelendens) mitogenome resources by sequencing an individual from Singapore. A phylogenetic tree constructed from Corvidae family mitogenome sequences available on GenBank is presented. We confirm the monophyly of the genus Corvus and propose to use complete mitogenome resources for further intra- and interspecies genetic studies.

  10. System Reliability Analysis Capability and Surrogate Model Application in RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    Rabiti, Cristian; Alfonsi, Andrea; Huang, Dongli; Gleicher, Frederick; Wang, Bei; Adbel-Khalik, Hany S.; Pascucci, Valerio; Smith, Curtis L.

    2015-11-01

    This report collect the effort performed to improve the reliability analysis capabilities of the RAVEN code and explore new opportunity in the usage of surrogate model by extending the current RAVEN capabilities to multi physics surrogate models and construction of surrogate models for high dimensionality fields.

  11. Factor structure of Raven's Coloured Progressive Matrices

    OpenAIRE

    Muniz, Monalisa; Gomes, Cristiano Mauro Assis; Pasian, Sonia Regina

    2016-01-01

    Abstract This study's objective was to verify the factor structure of Raven's Coloured Progressive Matrices (CPM). The database used included the responses of 1,279 children, 50.2% of which were males with an average age of 8.48 years old and a standard deviation of 1.49 yrs. Confirmatory factor analyses were run to test seven models based on CPM theory and on a Brazilian study addressing the test's structure. The results did not confirm the CPM theoretical proposition concerning the scales b...

  12. Age differences on Raven's Coloured Progressive Matrices.

    Science.gov (United States)

    Panek, P E; Stoner, S B

    1980-06-01

    Raven's Coloured Progressive Matrices was administered to 150 subjects (75 males, 75 females) ranging in age from 20 to 86 yr. Subjects were placed into one of three age groups: adult (M age = 27.04 yr.), middle-age (M age = 53.36 yr.), old (M age = 73.78 yr.), with 25 males and 25 females in each age group. Significant differences between age groups on the matrices were obtained after partialing out the effects of educational level, while sex of subject was not significant.

  13. Health studies on the Indian house crow (Corvus splendens).

    Science.gov (United States)

    Cooper, J E

    1996-06-01

    Fifteen Indian house crows (Corvus splendens) were obtained from a live-trap in Dar es Salaam, Tanzania. Two died soon after arrival. The remainder were examined clinically prior to euthanasia. All birds were examined post-mortem and a limited number of laboratory investigations was performed. None of the birds showed significant clinical signs or pathological lesions. Lice were found on one. Only Escherichia coli and Proteus spp. were isolated from the rectum. Coccidia were detected in three birds and cestodes in one. Haematological values were low. No blood parasites were seen. More extensive studies are warranted on the possible role of this species in the dissemination of pathogens.

  14. Time Dependent Data Mining in RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States); Chen, Jun [Idaho National Lab. (INL), Idaho Falls, ID (United States); Patel, Japan Ketan [Idaho National Lab. (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Maljovec, Daniel Patrick [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Talbot, Paul William [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    RAVEN is a generic software framework to perform parametric and probabilistic analysis based on the response of complex system codes. The goal of this type of analyses is to understand the response of such systems in particular with respect their probabilistic behavior, to understand their predictability and drivers or lack of thereof. Data mining capabilities are the cornerstones to perform such deep learning of system responses. For this reason static data mining capabilities were added last fiscal year (FY 15). In real applications, when dealing with complex multi-scale, multi-physics systems it seems natural that, during transients, the relevance of the different scales, and physics, would evolve over time. For these reasons the data mining capabilities have been extended allowing their application over time. In this writing it is reported a description of the new RAVEN capabilities implemented with several simple analytical tests to explain their application and highlight the proper implementation. The report concludes with the application of those newly implemented capabilities to the analysis of a simulation performed with the Bison code.

  15. THEMIS analysis of Olympus Mons' mineralogical makeup

    Science.gov (United States)

    Chase, N. D.

    2016-12-01

    Olympus Mons is the largest shield volcano in our known solar system. In previous studies, the composition of the basaltic lava flows on Olympus Mons was shown to be similar to the composition of those lava flows of Earth's shield volcanoes. It has been suggested that basalt located near volcanoes contained bacteria living below the surface of the Earth. In this pilot study, the effect of Olympus Mons' aspect (i.e. north- vs. south-facing slope) on its mineral composition was examined. Imagery from Thermal Emission Imaging System (THEMIS), onboard the 2001 Mars Odyssey spacecraft, were used because Olympus Mons' size and surface roughness hinder rover exploration. After removing transmission errors and performing an atmospheric correction, the THEMIS images were ready to be analyzed via a mineral spectral library. Using Arizona State University's Thermal Emission Spectrometer (TES) derived mineral spectral library, the images were classified in ENVI. These classifications were verified using ASU's GIS tool, Java Mission-planning and Analysis for Remote Sensing (JMARS) and TES. Results show a significant amount of silicates located throughout the sampled areas of Olympus Mons. The results also show differences in the mineral composition and in the geological features on Olympus Mons' surface. The minerals vanadinite and halloysite were shown to be prevalent on the sampled southern portions of Olympus Mons, but were sparse on the sampled northern portions. Previous studies suggested that the mineral ilmenite, which this study found in high concentrations on the sampled northern portions of Olympus Mons, might serve as a food source for iron-oxidizing and iron-scavenging bacteria. Future research should focus on better understanding these concentrations on Olympus Mons to see if these minerals play a role in the potential bacterial presence on Olympus Mons.

  16. The Raven,a Loner’s Psychological Accompanier

    Institute of Scientific and Technical Information of China (English)

    商滔

    2015-01-01

    Edgar Allan Poe’s The Raven is well-known to the world for its detailed psychological descriptions in the author’s eyes of this essay.Whereas,the Raven is the only one accompanie and the best listener listening to Poe’s psychological cry for his lover.The author will try to present the scene of the sadness from Poe by employing Carl G.Jung’s theories about consciousness and unconsciousness.

  17. The Raven,a Loner’s Psychological Accompanier

    Institute of Scientific and Technical Information of China (English)

    商滔

    2015-01-01

    Edgar Allan Poe’s The Raven is well-known to the world for its detailed psychological descriptions in the author’s eyes of this essay.Whereas,the Raven is the only one accompanier and the best listener listening to Poe’s psychological cry for his lover.The author will try to present the scene of the sadness from Poe by employing Carl G.Jung’s theories about consciousness and unconsciousness.

  18. Apes (Gorilla gorilla, Pan paniscus, P. troglodytes, Pongo abelii) versus corvids (Corvus corax, C. corone) in a support task: the effect of pattern and functionality.

    Science.gov (United States)

    Albiach-Serrano, Anna; Bugnyar, Thomas; Call, Josep

    2012-11-01

    Apes (Gorilla gorilla, Pan paniscus, P. troglodytes, Pong abelii) and corvids (Corvus corax, C. corone) are among the most proficient and flexible tool users in the animal kingdom. Although it has been proposed that this is the result of convergent evolution, little is known about whether this is limited to behavior or also includes the underlying cognitive mechanisms. We compared several species of apes (bonobos, chimpanzees, gorillas, and orangutans) and corvids (carrion crows and common ravens) using exactly the same paradigm: a support task with elements from the classical patterned-string tasks. Corvids proved able to solve at least an easy pattern, whereas apes outperformed corvids with respect to the complexity of the patterns solved, the relative number of subjects solving each problem, and the speed to reach criterion. We addressed the question of whether subjects based their choices purely on perceptual cues or on a more abstract understanding of the problem. This was done by using a perceptually very similar but causally different condition where instead of paper strips there were strip shapes painted on a platform. Corvids' performance did not differ between conditions, whereas apes were able to solve the real but not the painted task. This shows that apes were not basing their choices just on spatial or arbitrary perceptual cues. Instead, and unlike corvids, they must have had some causal knowledge of the task.

  19. "The raven", by Machado de Assis "The raven", by Machado de Assis

    Directory of Open Access Journals (Sweden)

    Sérgio Luiz Prado Bellei

    2008-04-01

    Full Text Available The Brazilian critic José Guilherme Merquior once claimed that Machado de Assis's translation of "The Raven" should not be considered inferior to the well known translation of the Portuguese poet Fernando Pessoa. 1 Unfortunately Merquior does not seem to find necessary to give reasons for this evaluation. And yet even the most cursory reading of the two translations will show that some sort of explanation is necessary because Machado and Pessoa are obviously doing something radically different with Poe's poem. Consider, for example, the two renderings of the first stanza in relation to Poe's original: The Brazilian critic José Guilherme Merquior once claimed that Machado de Assis's translation of "The Raven" should not be considered inferior to the well known translation of the Portuguese poet Fernando Pessoa. 1 Unfortunately Merquior does not seem to find necessary to give reasons for this evaluation. And yet even the most cursory reading of the two translations will show that some sort of explanation is necessary because Machado and Pessoa are obviously doing something radically different with Poe's poem. Consider, for example, the two renderings of the first stanza in relation to Poe's original:

  20. ARC Code TI: NodeMon

    Data.gov (United States)

    National Aeronautics and Space Administration — NodeMon is a resource utilization monitor tailored to the Altix architecture, but is applicable to any Linux system or cluster. It allows distributed resource...

  1. Application of the Raven UAV for chemical and biological detection

    Science.gov (United States)

    Altenbaugh, Ryan; Barton, Jeff; Chiu, Christopher; Fidler, Ken; Hiatt, Dan; Hawthorne, Chad; Marshall, Steven; Mohos, Joe; McHugh, Vince; Nicoloff, Bill

    2010-04-01

    This paper presents the plume tracking algorithms developed for a series of outdoor chemical-stimulant testing conducted at Dugway Proving Ground in 2008 and 2009 employing a Raven UAV equipped with a real-time chemical sensor. The flights were conducted as part of the a program under the sponsorship of the Army JPM NBC Contamination Avoidance and in conjunction with the Army PM-Unmanned Aircraft Systems, the Defense Threat Reduction Agency, and Edgewood Chemical Biological Center. This test demonstrated the Raven's ability to autonomously detect and track a chemical plume during a variety of atmospheric conditions. During the testing, the Raven conducted over a dozen flights, tracking outdoor releases of simulated chemical weapons over significant distances. The Raven was cued to the releases with standoff detection systems through Cursor on Target messages. Upon reaching the plume, the Raven used on-board sensors and on-board meteorological data to track the plume autonomously and determine the extent of the plume. Results were provided in real-time to the UAV operator.

  2. Southeastern Scarp of Olympus Mons

    Science.gov (United States)

    2002-01-01

    (Released 4 June 2002) The Science The movement pathways of molten rock, or lava, is demonstrated in this image of a portion of Olympus Mons, the largest volcano in our solar system. These now-solid lava flows all show nearly the same orientation, having flowed from northeast to southwest, down the slope of the volcano's southeastern flank. Throughout the image, narrow pairs of lineaments can be observed ? these are called levees, and are essentially channel walls formed by the solidification and buildup of the edges of the lava flows. We can determine that the high-standing mountains must be older than the flows because they blocked their passage, causing the flows to change direction and go around the taller mountains. As in other THEMIS images, the lack of bright-dark contrast in this image indicates that a layer of dust covers these surfaces. The surfaces of the lava flows are virtually uncratered, attesting to the relatively recent formation of the flows, where ?recent? is within the last 500 million years or so. Several meteorites found on Earth appear to have come from volcanic regions on Mars ? their ages are as young as 180 million years, leading many scientists to suggest that volcanoes of the Tharsis region, including Olympus Mons, may be the source regions of these meteorites. A prominent pear-shaped bowl is apparent on a hill in the lower right third of the image ? the collapse and mass movement of material down slope, which also formed a debris pile below and southeast of the bowl, likely formed this feature. The Story Millions and millions of years ago, a huge impact blasted a crater into the surface of Mars, sending particles of the Martian surface scattering into space at great speeds, where they spent millions and millions of years calmly in space before encountering a nearby orbiting planet: our own planet Earth. Hurtling down through Earth's atmosphere, these pieces of Mars landed in various regions of our world and were discovered by modern

  3. The House Crow (Corvus splendens: A Threat to New Zealand?

    Directory of Open Access Journals (Sweden)

    Diane L. Fraser

    2015-05-01

    Full Text Available The house crow (Corvus splendens, a native of the Indian subcontinent, has shown a rapid expansion of habitat range across Eastern Africa, the Arabian Peninsula, Europe and Asia. It is an adaptable, gregarious commensal bird which is regarded globally as an important pest species due to its impacts on livestock, agricultural and horticultural crops and indigenous fauna and as a fecal contaminator of human environments and water resources. Two Maxent (v3.3.3k models (A with presence data in Australia and (B with simulated entry data locations in New Zealand and a third ArcGIS model (C with environmental and social layers are used to determine an overall suitability index and establish a niche-based model of the potential spatial distribution for C. splendens within New Zealand. The results show that New Zealand, particularly the northern regions of North Island, has suitable environments for the establishment of the house crow. In order of suitability Model B showed highest potential land area suitability (31.84% followed by Model A (13.79% and Model C (10.89%. The potential for further expansion of this bird’s invasive range is high and, if New Zealand is invaded, impacts are likely to be significant.

  4. Raven-II: an open platform for surgical robotics research.

    Science.gov (United States)

    Hannaford, Blake; Rosen, Jacob; Friedman, Diana W; King, Hawkeye; Roan, Phillip; Cheng, Lei; Glozman, Daniel; Ma, Ji; Kosari, Sina Nia; White, Lee

    2013-04-01

    The Raven-II is a platform for collaborative research on advances in surgical robotics. Seven universities have begun research using this platform. The Raven-II system has two 3-DOF spherical positioning mechanisms capable of attaching interchangeable four DOF instruments. The Raven-II software is based on open standards such as Linux and ROS to maximally facilitate software development. The mechanism is robust enough for repeated experiments and animal surgery experiments, but is not engineered to sufficient safety standards for human use. Mechanisms in place for interaction among the user community and dissemination of results include an electronic forum, an online software SVN repository, and meetings and workshops at major robotics conferences.

  5. Raven surgical robot training in preparation for da vinci.

    Science.gov (United States)

    Glassman, Deanna; White, Lee; Lewis, Andrew; King, Hawkeye; Clarke, Alicia; Glassman, Thomas; Comstock, Bryan; Hannaford, Blake; Lendvay, Thomas S

    2014-01-01

    The rapid adoption of robotic assisted surgery challenges the pace at which adequate robotic training can occur due to access limitations to the da Vinci robot. Thirty medical students completed a randomized controlled trial evaluating whether the Raven robot could be used as an alternative training tool for the Fundamentals of Laparoscopic Surgery (FLS) block transfer task on the da Vinci robot. Two groups, one trained on the da Vinci and one trained on the Raven, were tested on a criterion FLS block transfer task on the da Vinci. After robotic FLS block transfer proficiency training there was no statistically significant difference between path length (p=0.39) and economy of motion scores (p=0.06) between the two groups, but those trained on the da Vinci did have faster task times (p=0.01). These results provide evidence for the value of using the Raven robot for training prior to using the da Vinci surgical system for similar tasks.

  6. RAVEN, a New Software for Dynamic Risk Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Cristian Rabiti; Andrea Alfonsi; Joshua Cogliati; Diego Mandelli; Robert Kinoshita

    2014-06-01

    RAVEN is a generic software driver to perform parametric and probabilistic analysis of code simulating complex systems. Initially developed to provide dynamic risk analysis capabilities to the RELAP-7 code [1] is currently being generalized with the addition of Application Programming Interfaces (APIs). These interfaces are used to extend RAVEN capabilities to any software as long as all the parameters that need to be perturbed are accessible by inputs files or directly via python interfaces. RAVEN is capable to investigate the system response probing the input space using Monte Carlo, grid strategies, or Latin Hyper Cube schemes, but its strength is its focus toward system feature discovery like limit surfaces separating regions of the input space leading to system failure using dynamic supervised learning techniques. The paper will present an overview of the software capabilities and their implementation schemes followed by same application examples.

  7. DAKOTA reliability methods applied to RAVEN/RELAP-7.

    Energy Technology Data Exchange (ETDEWEB)

    Swiler, Laura Painton; Mandelli, Diego; Rabiti, Cristian; Alfonsi, Andrea

    2013-09-01

    This report summarizes the result of a NEAMS project focused on the use of reliability methods within the RAVEN and RELAP-7 software framework for assessing failure probabilities as part of probabilistic risk assessment for nuclear power plants. RAVEN is a software tool under development at the Idaho National Laboratory that acts as the control logic driver and post-processing tool for the newly developed Thermal-Hydraulic code RELAP-7. Dakota is a software tool developed at Sandia National Laboratories containing optimization, sensitivity analysis, and uncertainty quantification algorithms. Reliability methods are algorithms which transform the uncertainty problem to an optimization problem to solve for the failure probability, given uncertainty on problem inputs and a failure threshold on an output response. The goal of this work is to demonstrate the use of reliability methods in Dakota with RAVEN/RELAP-7. These capabilities are demonstrated on a demonstration of a Station Blackout analysis of a simplified Pressurized Water Reactor (PWR).

  8. Comparison of the Standard and Computerized Versions of the Raven Coloured Progressive Matrices Test.

    Science.gov (United States)

    Rock, Daniel L.; Nolen, Patricia A.

    1982-01-01

    Children aged 7 to 14 years were administered a computerized version of the Raven's Coloured Progressive Matrices test. Computer and traditional version performance was found to be similar in terms of total mean score, correlation with the WISC-R, Raven's subscale intercorrelations, and Raven's total mean score composition. (Author/RD)

  9. FrankenRaven: A New Platform for Remote Sensing

    Science.gov (United States)

    Dahlgren, R. P.; Fladeland, M. M.; Pinsker, E. A.; Jasionowicz, J. P.; Jones, L. L.; Mosser, C. D.; Pscheid, M. J.; Weidow, N. L.; Kelly, P. J.; Kern, C.; Werner, C. A.; Johnson, M. S.

    2016-12-01

    Small, modular aircraft are an emerging technology with a goal to maximize flexibility and enable multi-mission support. This reports the progress of an unmanned aerial system (UAS) project conducted at the NASA Ames Research Center (ARC) in 2016. This interdisciplinary effort builds upon the success of the 2014 FrankenEye project to apply rapid prototyping techniques to UAS, to develop a variety of platforms to host remote sensing instruments. In 2016, ARC received AeroVironment RQ-11A and RQ-11B Raven UAS from the US Department of the Interior, Office of Aviation Services. These aircraft have electric propulsion, a wingspan of roughly 1.3m, and have demonstrated reliability in challenging environments. The Raven airframe is an ideal foundation to construct more complex aircraft, and student interns using 3D printing were able to graft multiple Raven wings and fuselages into "FrankenRaven" aircraft. Aeronautical analysis shows that the new configuration has enhanced flight time, payload capacity, and distance compared to the original Raven. The FrankenRaven avionics architecture replaces the mil-spec avionics with COTS technology based upon the 3DR Pixhawk PX4 autopilot with a safety multiplexer for failsafe handoff to 2.4 GHz RC control and 915 MHz telemetry. This project demonstrates how design reuse, rapid prototyping, and modular subcomponents can be leveraged into flexible airborne platforms that can host a variety of remote sensing payloads and even multiple payloads. Modularity advances a new paradigm: mass-customization of aircraft around given payload(s). Multi-fuselage designs are currently under development to host a wide variety of payloads including a zenith-pointing spectrometer, a magnetometer, a multi-spectral camera, and a RGB camera. After airworthiness certification, flight readiness review, and test flights are performed at Crows Landing airfield in central California, field data will be taken at Kilauea volcano in Hawaii and other locations.

  10. Enhancements to the RAVEN code in FY16

    Energy Technology Data Exchange (ETDEWEB)

    Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Maljovec, Daniel Patrick [Idaho National Lab. (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Smith, Curtis Lee [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    The RAVEN code has been under development at the Idaho National Laboratory since 2012. Its main goal is to create a multi-purpose platform for the deploying of all the capabilities needed for Probabilistic Risk Assessment, uncertainty quantification, data mining analysis and optimization studies. RAVEN has currently reached a good level of maturity in terms of deployed state-of-art and advanced capabilities. The main subject of this report is to show the activities that have been recently accomplished: • Implementation of ensemble modeling for time-series, and • initial implementation of model validation for surrogate models, and • advanced visualization capability for topology based data analysis The development of ensemble modeling for time-series has been performed in order to begin tackling the needs of those RISMC applications that need to communicate 1-Dimensional information (e.g. power histories, etc.) among different models. In this document the implementation details and an application example is reported. The second subject of this report is about the initial development of methods, within the RAVEN framework, to assess the validity of the predictive capabilities of surrogate models. Indeed, after the construction of a surrogate tight to a certain physical model, it is crucial to assess the goodness of its representation, in order to be confident with its prediction. In this initial activity, a cross-validation technique has been employed. This report will highlight the implementation details and proof its correct implementation by an application example. The final subject of this report is about the implementation of advanced visualization capability in RAVEN, for interactive data analysis. Indeed, RAVEN offers several post-processing capabilities that can structurally decompose data extracted from experimental results offering both data clustering/partitioning and dimensionality reduction techniques. A disadvantage of the workflow available in

  11. Detection methods for biotech cotton MON 15985 and MON 88913 by PCR.

    Science.gov (United States)

    Lee, Seong-Hun; Kim, Jin-Kug; Yi, Bu-Young

    2007-05-01

    Plants derived through agricultural biotechnology, or genetically modified organisms (GMOs), may affect human health and ecological environment. A living GMO is also called a living modified organism (LMO). Biotech cotton is a GMO in food or feed and also an LMO in the environment. Recently, two varieties of biotech cotton, MON 15985 and MON 88913, were developed by Monsanto Co. The detection method is an essential element for the GMO labeling system or LMO management of biotech plants. In this paper, two primer pairs and probes were designed for specific amplification of 116 and 120 bp PCR products from MON 15985 and MON 88913, respectively, with no amplification from any other biotech cotton. Limits of detection of the qualitative method were all 0.05% for MON 15985 and MON 88913. The quantitative method was developed using a TaqMan real-time PCR. A synthetic plasmid, as a reference molecule, was constructed from a taxon-specific DNA sequence of cotton and two construct-specific DNA sequences of MON 15985 and MON 88913. The quantitative method was validated using six samples that contained levels of biotech cotton mixed with conventional cotton ranging from 0.1 to 10.0%. As a result, the biases from the true value and the relative deviations were all within the range of +/-20%. Limits of quantitation of the quantitative method were all 0.1%. Consequently, it is reported that the proposed detection methods were applicable for qualitative and quantitative analyses for biotech cotton MON 15985 and MON 88913.

  12. The Raven and the Crow: A Makah Story Coloring Book.

    Science.gov (United States)

    Makah Cultural and Research Center, Neah Bay, WA.

    The Makah coloring book tells the story of how the raven twice tricked the crow and her hungry children out of a meal. The captions tell the story in English with some Makah words inserted in the text. The book contains a Makah-English glossary of 11 words. (SB)

  13. Variation in Raven's Progressive Matrices Scores across Time and Place

    Science.gov (United States)

    Brouwers, Symen A.; Van de Vijver, Fons J. R.; Van Hemert, Dianne A.

    2009-01-01

    The paper describes a cross-cultural and historical meta-analysis of Raven's Progressive Matrices. Data were analyzed of 798 samples from 45 countries (N = 244,316), which were published between 1944 and 2003. Country-level indicators of educational permeation (which involves a broad set of interrelated educational input and output factors that…

  14. RAVEN and Dynamic Probabilistic Risk Assessment: Software overview

    Energy Technology Data Exchange (ETDEWEB)

    Andrea Alfonsi; Cristian Rabiti; Diego Mandelli; Joshua Cogliati; Robert Kinoshita; Antonio Naviglio

    2014-09-01

    RAVEN is a generic software framework to perform parametric and probabilistic analysis based on the response of complex system codes. The initial development was aimed to provide dynamic risk analysis capabilities to the Thermo-Hydraulic code RELAP-7 [], currently under development at the Idaho National Laboratory. Although the initial goal has been fully accomplished, RAVEN is now a multi-purpose probabilistic and uncertainty quantification platform, capable to agnostically communicate with any system code. This agnosticism has been employed by providing Application Programming Interfaces (APIs). These interfaces are used to allow RAVEN to interact with any code as long as all the parameters that need to be perturbed are accessible by inputs files or via python interfaces. RAVEN is capable to investigate the system response, investigating the input space using Monte Carlo, Grid, or Latin Hyper Cube sampling schemes, but its strength is focused toward system feature discovery, such as limit surfaces, separating regions of the input space leading to system failure, using dynamic supervised learning techniques. The paper presents an overview of the software capabilities and their implementation schemes followed by some application examples.

  15. A Comprehensive Validation Approach Using The RAVEN Code

    Energy Technology Data Exchange (ETDEWEB)

    Alfonsi, Andrea; Rabiti, Cristian; Cogliati, Joshua J; Rinaldi, Ivan; Giannetti, Fabio; Caruso, Gianfranco

    2015-06-01

    The RAVEN computer code , developed at the Idaho National Laboratory, is a generic software framework to perform parametric and probabilistic analysis based on the response of complex system codes. RAVEN is a multi-purpose probabilistic and uncertainty quantification platform, capable to communicate with any system code. A natural extension of the RAVEN capabilities is the imple- mentation of an integrated validation methodology, involving several different metrics, that represent an evolution of the methods currently used in the field. The state-of-art vali- dation approaches use neither exploration of the input space through sampling strategies, nor a comprehensive variety of metrics needed to interpret the code responses, with respect experimental data. The RAVEN code allows to address both these lacks. In the following sections, the employed methodology, and its application to the newer developed thermal-hydraulic code RELAP-7, is reported.The validation approach has been applied on an integral effect experiment, representing natu- ral circulation, based on the activities performed by EG&G Idaho. Four different experiment configurations have been considered and nodalized.

  16. Implementation of Stochastic Polynomials Approach in the RAVEN Code

    Energy Technology Data Exchange (ETDEWEB)

    Cristian Rabiti; Paul Talbot; Andrea Alfonsi; Diego Mandelli; Joshua Cogliati

    2013-10-01

    RAVEN, under the support of the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program, has been tasked to provide the necessary software and algorithms to enable the application of the conceptual framework developed by the Risk Informed Safety Margin Characterization (RISMC) [1] path. RISMC is one of the paths defined under the Light Water Reactor Sustainability (LWRS) DOE program.

  17. Raven's Matrices Performance in Down Syndrome: Evidence of Unusual Errors

    Science.gov (United States)

    Gunn, Deborah M.; Jarrold, Christopher

    2004-01-01

    The aim of this study was to investigate the types of errors produced by three participant groups (individuals with Down syndrome, with moderate learning disability, and typically developing children) whilst completing the Raven's Coloured Progressive Matrices task. An analysis of error categories revealed that individuals with Down syndrome…

  18. A Kenya Standardization of the Raven's Coloured Progressive Matrices.

    Science.gov (United States)

    Costenbader, Virginia; Ngari, Stephen Mbugua

    2001-01-01

    Establishes a Kenyan standardization of the Raven's Coloured Progressive Matrices (RCPM), a nonverbal instrument widely used to assess academic aptitude in young children. Data was gathered from a sample of 1,370 children between the ages of 6 and 10 years. Using the current data, the RCPM appears to be a reliable and valid instrument for use in…

  19. Developing and Implementing the Data Mining Algorithms in RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    Sen, Ramazan Sonat [Idaho National Lab. (INL), Idaho Falls, ID (United States); Maljovec, Daniel Patrick [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-09-01

    The RAVEN code is becoming a comprehensive tool to perform probabilistic risk assessment, uncertainty quantification, and verification and validation. The RAVEN code is being developed to support many programs and to provide a set of methodologies and algorithms for advanced analysis. Scientific computer codes can generate enormous amounts of data. To post-process and analyze such data might, in some cases, take longer than the initial software runtime. Data mining algorithms/methods help in recognizing and understanding patterns in the data, and thus discover knowledge in databases. The methodologies used in the dynamic probabilistic risk assessment or in uncertainty and error quantification analysis couple system/physics codes with simulation controller codes, such as RAVEN. RAVEN introduces both deterministic and stochastic elements into the simulation while the system/physics code model the dynamics deterministically. A typical analysis is performed by sampling values of a set of parameter values. A major challenge in using dynamic probabilistic risk assessment or uncertainty and error quantification analysis for a complex system is to analyze the large number of scenarios generated. Data mining techniques are typically used to better organize and understand data, i.e. recognizing patterns in the data. This report focuses on development and implementation of Application Programming Interfaces (APIs) for different data mining algorithms, and the application of these algorithms to different databases.

  20. RAVEN: Dynamic Event Tree Approach Level III Milestone

    Energy Technology Data Exchange (ETDEWEB)

    Andrea Alfonsi; Cristian Rabiti; Diego Mandelli; Joshua Cogliati; Robert Kinoshita

    2013-07-01

    Conventional Event-Tree (ET) based methodologies are extensively used as tools to perform reliability and safety assessment of complex and critical engineering systems. One of the disadvantages of these methods is that timing/sequencing of events and system dynamics are not explicitly accounted for in the analysis. In order to overcome these limitations several techniques, also know as Dynamic Probabilistic Risk Assessment (DPRA), have been developed. Monte-Carlo (MC) and Dynamic Event Tree (DET) are two of the most widely used D-PRA methodologies to perform safety assessment of Nuclear Power Plants (NPP). In the past two years, the Idaho National Laboratory (INL) has developed its own tool to perform Dynamic PRA: RAVEN (Reactor Analysis and Virtual control ENvironment). RAVEN has been designed to perform two main tasks: 1) control logic driver for the new Thermo-Hydraulic code RELAP-7 and 2) post-processing tool. In the first task, RAVEN acts as a deterministic controller in which the set of control logic laws (user defined) monitors the RELAP-7 simulation and controls the activation of specific systems. Moreover, the control logic infrastructure is used to model stochastic events, such as components failures, and perform uncertainty propagation. Such stochastic modeling is deployed using both MC and DET algorithms. In the second task, RAVEN processes the large amount of data generated by RELAP-7 using data-mining based algorithms. This report focuses on the analysis of dynamic stochastic systems using the newly developed RAVEN DET capability. As an example, a DPRA analysis, using DET, of a simplified pressurized water reactor for a Station Black-Out (SBO) scenario is presented.

  1. RAVEN. Dynamic Event Tree Approach Level III Milestone

    Energy Technology Data Exchange (ETDEWEB)

    Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2014-07-01

    Conventional Event-Tree (ET) based methodologies are extensively used as tools to perform reliability and safety assessment of complex and critical engineering systems. One of the disadvantages of these methods is that timing/sequencing of events and system dynamics are not explicitly accounted for in the analysis. In order to overcome these limitations several techniques, also know as Dynamic Probabilistic Risk Assessment (DPRA), have been developed. Monte-Carlo (MC) and Dynamic Event Tree (DET) are two of the most widely used D-PRA methodologies to perform safety assessment of Nuclear Power Plants (NPP). In the past two years, the Idaho National Laboratory (INL) has developed its own tool to perform Dynamic PRA: RAVEN (Reactor Analysis and Virtual control ENvironment). RAVEN has been designed to perform two main tasks: 1) control logic driver for the new Thermo-Hydraulic code RELAP-7 and 2) post-processing tool. In the first task, RAVEN acts as a deterministic controller in which the set of control logic laws (user defined) monitors the RELAP-7 simulation and controls the activation of specific systems. Moreover, the control logic infrastructure is used to model stochastic events, such as components failures, and perform uncertainty propagation. Such stochastic modeling is deployed using both MC and DET algorithms. In the second task, RAVEN processes the large amount of data generated by RELAP-7 using data-mining based algorithms. This report focuses on the analysis of dynamic stochastic systems using the newly developed RAVEN DET capability. As an example, a DPRA analysis, using DET, of a simplified pressurized water reactor for a Station Black-Out (SBO) scenario is presented.

  2. Compositional analysis of genetically modified corn events (NK603, MON88017×MON810 and MON89034×MON88017) compared to conventional corn.

    Science.gov (United States)

    Rayan, Ahmed M; Abbott, Louise C

    2015-06-01

    Compositional analysis of genetically modified (GM) crops continues to be an important part of the overall evaluation in the safety assessment for these materials. The present study was designed to detect the genetic modifications and investigate the compositional analysis of GM corn containing traits of multiple genes (NK603, MON88017×MON810 and MON89034×MON88017) compared with non-GM corn. Values for most biochemical components assessed for the GM corn samples were similar to those of the non-GM control or were within the literature range. Significant increases were observed in protein, fat, fiber and fatty acids of the GM corn samples. The observed increases may be due to the synergistic effect of new traits introduced into corn varieties. Furthermore, SDS-PAGE analysis showed high similarity among the protein fractions of the investigated corn samples. These data indicate that GM corn samples were compositionally equivalent to, and as nutritious as, non-GM corn.

  3. The Bowmen of Mons and Mars

    OpenAIRE

    Clarke, David

    2014-01-01

    This paper examines the shared literary influences of Arthur Machen, author of 'The Bowmen & Angels of Mons' and Edgar Rice Burroughs, author of the Martian novels featuring John Carter. Both authors used the motif of phantom bowmen in their short stories and novels at a significant period during WW1.

  4. Brains, tools, innovation and biogeography in crows and ravens

    DEFF Research Database (Denmark)

    Jønsson, Knud Andreas; Fabre, Pierre-Henri Fréderic; Irestedt, Martin

    2012-01-01

    Corvus. We date the phylogeny and determine ancestral areas to investigate historical biogeographical patterns of the crows. Additionally, we use data on brain size and a large database on innovative behaviour and tool use to test whether brain size (i) explains innovative behaviour and success....... The Caribbean was probably colonized from North America, although some North American ancestor may have gone extinct, and the Pacific was colonized multiple times from Asia and Australia. We did not find a correlation between relative brain size, tool use, innovative feeding strategies and dispersal success...

  5. Hansteen Mons: An LROC geological perspective

    Science.gov (United States)

    Boyce, Joseph M.; Giguere, Thomas A.; Hawke, B. Ray; Mouginis-Mark, Peter J.; Robinson, Mark S.; Lawrence, Samuel J.; Trang, David; Clegg-Watkins, Ryan N.

    2017-02-01

    Mons Hansteen is a relatively high-albedo, well-known lunar ``red spot'' located on the southern margin of Oceanus Procellarum (2.3°S, 50.2°W). It is an arrowhead-shaped (∼ 25 km on a side), two-layer mesa with a small cone-shaped massif on its north edge formed by three morphologically and compositionally distinct geologic units. These units were emplaced in three phases over nearly 200 million years. The oldest (∼3.74 Ga), Hilly-Dissected unit, composed of high-silica, and low-FeO content materials formed a low, steep sided mesa. The materials of this unit erupted mainly from vents along northeast- and northwest-trending sets of fractures. The Pitted unit, which comprises the upper-tier mesa, is composed of high-silica and even lower-FeO content materials. This material was erupted at ∼ 3.5 Ga from numerous closely spaced vents (i.e., pits) formed along closely spaced northeast-southwest-trending sets of fractures. At nearly the same time, eruptions of lower silica and higher FeO materials occurred on the north flank of Mons Hansteen at the intersection of two major fractures to produce the North Massif unit. The eruptions that created the North Massif units also produced materials that thinly blanketed small areas of the Hilly-Dissected and Pitted units on the north flank of Mons Hansteen. Also at nearly the same time (i.e., ∼ 3.5 Ga), basalt flows formed the surrounding mare. Each unit of Mons Hansteen appears to be mantled by locally derived ash, which only modestly contaminated the other units. The morphology of Mons Hansteen (especially the Pitted unit) suggests a style of volcanism where only a relatively small amount of material is explosively erupted from numerous, closely spaced vents.

  6. Dicamba-Tolerant Soybeans (Glycine max L.) MON 87708 and MON 87708 × MON 89788 Are Compositionally Equivalent to Conventional Soybean.

    Science.gov (United States)

    Taylor, Mary; Bickel, Anna; Mannion, Rhonda; Bell, Erin; Harrigan, George G

    2017-09-13

    Herbicide-tolerant crops can expand both tools for and timing of weed control strategies. MON 87708 soybean has been developed through genetic modification and confers tolerance to the dicamba herbicide. As part of the safety assessment conducted for new genetically modified (GM) crop varieties, a compositional assessment of MON 87708 was performed. Levels of key soybean nutrients and anti-nutrients in harvested MON 87708 were compared to levels of those components in a closely related non-GM variety as well as to levels measured in other conventional soybean varieties. From this analysis, MON 87708 was shown to be compositionally equivalent to its comparator. A similar analysis conducted for a stacked trait product produced by conventional breeding, MON 87708 × MON 89788, which confers tolerance to both dicamba and glyphosate herbicides, reached the same conclusion. These results are consistent with other results that demonstrate no compositional impact of genetic modification, except in those cases where an impact was an intended outcome.

  7. REACTOR ANALYSIS AND VIRTUAL CONTROL ENVIRONMENT (RAVEN) FY12 REPORT

    Energy Technology Data Exchange (ETDEWEB)

    Cristian Rabiti; Andrea Alfonsi; Joshua Cogliati; Diego Mandelli; Robert Kinoshita

    2012-09-01

    RAVEN is a complex software tool that will have tasks spanning from being the RELAP-7 user interface, to using RELAP-7 to perform Risk Informed Safety Characterization (RISMC), and to controlling RELAP-7 calculation execution. The goal of this document is to: 1. Highlight the functional requirements of the different tasks of RAVEN 2. Identify shared functions that could be aggregate in modules so to obtain a minimal software redundancy and maximize software utilization. RAVEN is in fact a software framework that will allow exploiting the following functionalities: • Derive and actuate the control logic required to: o Simulate the plant control system o Simulate the operator (procedure guided) actions o Perform Monte Carlo sampling of random distributed events o Perform event three based analysis • Provide a GUI to: o Input a plant description to RELAP-7 (component, control variable, control parameters) o Concurrent monitoring of Control Parameters o Concurrent alteration of control parameters • Provide Post Processing data mining capability based on o Dimensionality reduction o Cardinality reduction In this document it will be shown how an appropriate mathematical formulation of the control logic and probabilistic analysis leads to have most of the software infrastructure leveraged between the two main tasks. Further, this document will go through the development accomplished this year, including simulation results, and priorities for the next years development

  8. Unidimensionality study about Raven's Coloured Standard Progressive Matrices / Estudo sobre a unidimensionalidade do teste Matrizes Progressivas Coloridas de Raven

    OpenAIRE

    Fermino Fernandes Sisto; Fabián Javier Marín Rueda; Daniel Bartholomeu

    2006-01-01

    This study assessed the adjustment of the Rasch model concerning unidimensionality of Raven's Colored Standard Progressive Matrices. Four hundred and forty-one (441) elementary school children, of both genders, attending first to fourth grade were investigated. Considering that residuals may be enough to violate the intrinsic unidimensionality of the items, residual principal component analysis was used to assess the possibility of this violation. Items with higher factorial loading relating ...

  9. Geomorphology and volcanology of Maat Mons, Venus

    Science.gov (United States)

    Mouginis-Mark, Peter J.

    2016-10-01

    Full-resolution (FMIDR) Magellan radar backscatter images have been used to characterize the geology and volcanology of the volcano Maat Mons on Venus. This volcano has often been identified by remote sensing techniques as one of the volcanoes on the planet that could have been recently active, and is the highest volcano on Venus with a relief of ∼9 km. The summit of Maat Mons is characterized by a caldera complex ∼26 × 30 km in diameter with at least six remnant pit craters ∼10 km in diameter preserved in the walls of the caldera, suggesting that multiple small volume (lava flow types, described as "digitate flows", "sheet flows", "fan flows" and "filamentary flows", can be identified on the flanks. Three rift zones can be identified from the distribution of 217 pit craters >1 km in diameter on the flanks. These pits appear to have formed by collapse with no effusive activity associated with their formation. No evidence for explosive volcanism can be identified, despite the (relatively) low atmospheric pressure (∼55 bar) near the summit. There is also a lack of evidence for lava channels, deformation features within the caldera, and thrust faults on the flanks, indicating that the physical volcanology of Maat Mons is simpler than that of typical martian and terrestrial shield volcanoes. Preservation of fine-scale (3-4 pixels) structures within the pit craters and summit pits is consistent with geologically very recent activity, but no evidence for current activity can be identified.

  10. The complete mitochondrial genome of the invasive house crow Corvus splendens (Passeriformes: Corvidae).

    Science.gov (United States)

    Krzeminska, Urszula; Wilson, Robyn; Rahman, Sadequr; Song, Beng Kah; Gan, Han Ming; Tan, Mun Hua; Austin, Christopher M

    2016-01-01

    The complete mitochondrial genome of the invasive house crow (Corvus splendens) was sequenced (GenBank accession number: KJ766304) using the MiSeq Personal Sequencer (Illumina, San Diego, CA). The mitochondrial genome is 16,962 bp in length, comprising 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal subunit genes and a non-coding control region. The mitogenome structural organization is identical to that of the other Corvus species and related genera. The overall base composition of C. splendens is 30.65% for A, 29.71% for C, 14.84% for G and 24.80% for T, with an AT content of 55.45%. We propose to use full mitochondrial genome to address taxonomic issues and to study the population genetics of crows.

  11. Census of roosting Indian house crows Corvus splendens on Mombasa island

    OpenAIRE

    Erftemeijer, P.L.A.; Seys, J.

    1998-01-01

    The Indian House Crow (Corvus splendens) is an Asiatic bird species, that was introduced to the coast of East Africa in the 1890s (Lewis & Pomeroy, 1989) . From Zanzibar, where colonial authorities introduced the species to act as an urban scavenger, the species has spread into coastal areas of Tanzania, Mozambique, South Africa, Kenya, Somalia and Ethiopia. After being recorded for the first time in Kenya in 1947 in Mombasa, this omnivorous scavenger is now very common in and around Mombasa ...

  12. The Numerical Competency of Two Bird Species (Corvus splendens and Acridotheres tristis)

    OpenAIRE

    2014-01-01

    We conducted a series of experiments to test the numerical competency of two species of birds, Corvus splendens (House Crow) and Acridotheres tristis (Common Myna). Both species were allowed to choose from seven different groups of mealworms with varying proportions. We considered the birds to have made a correct choice when it selected the food group with the highest number of mealworms. Our overall results indicated that the Common Myna is able to count numbers (161 successful choices out o...

  13. Analysis of the Space Propulsion System Problem Using RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    diego mandelli; curtis smith; cristian rabiti; andrea alfonsi

    2014-06-01

    This paper presents the solution of the space propulsion problem using a PRA code currently under development at Idaho National Laboratory (INL). RAVEN (Reactor Analysis and Virtual control ENviroment) is a multi-purpose Probabilistic Risk Assessment (PRA) software framework that allows dispatching different functionalities. It is designed to derive and actuate the control logic required to simulate the plant control system and operator actions (guided procedures) and to perform both Monte- Carlo sampling of random distributed events and Event Tree based analysis. In order to facilitate the input/output handling, a Graphical User Interface (GUI) and a post-processing data-mining module are available. RAVEN allows also to interface with several numerical codes such as RELAP5 and RELAP-7 and ad-hoc system simulators. For the space propulsion system problem, an ad-hoc simulator has been developed and written in python language and then interfaced to RAVEN. Such simulator fully models both deterministic (e.g., system dynamics and interactions between system components) and stochastic behaviors (i.e., failures of components/systems such as distribution lines and thrusters). Stochastic analysis is performed using random sampling based methodologies (i.e., Monte-Carlo). Such analysis is accomplished to determine both the reliability of the space propulsion system and to propagate the uncertainties associated to a specific set of parameters. As also indicated in the scope of the benchmark problem, the results generated by the stochastic analysis are used to generate risk-informed insights such as conditions under witch different strategy can be followed.

  14. Raven's Test Performance of Sub-Saharan Africans: Average Performance, Psychometric Properties, and the Flynn Effect

    Science.gov (United States)

    Wicherts, Jelte M.; Dolan, Conor V.; Carlson, Jerry S.; van der Maas, Han L. J.

    2010-01-01

    This paper presents a systematic review of published data on the performance of sub-Saharan Africans on Raven's Progressive Matrices. The specific goals were to estimate the average level of performance, to study the Flynn Effect in African samples, and to examine the psychometric meaning of Raven's test scores as measures of general intelligence.…

  15. Researchers' Bibliography for Raven's Progressive Matrices and Mill Hill Vocabulary Scales.

    Science.gov (United States)

    Court, J. H., Comp.

    This annotated bibliography enables researchers who are using Raven's Progressive Matrices or the Mill Hill Vocabulary Scales to become familiar with other work that used these tests. The bibliography derives from Raven's own collection of sources, updated to the end of 1971. The major division of material is by tests rather than subject areas;…

  16. Geologic Mapping of Ascraeus Mons, Mars

    Science.gov (United States)

    Mohr, K. J.; Williams, D. A.; Garry, W. B.

    2016-01-01

    Ascraeus Mons (AM) is the northeastern most large shield volcano residing in the Tharsis province on Mars. We are funded by NASA's Mars Data Analysis Program to complete a digital geologic map based on the mapping style. Previous mapping of a limited area of these volcanoes using HRSC images (13-25 m/pixel) revealed a diverse distribution of volcanic landforms within the calderas, along the flanks, rift aprons, and surrounding plains. The general scientific objectives for which this mapping is based is to show the different lava flow morphologies across AM to better understand the evolution and geologic history.

  17. On-sky MOAO performance evaluation of RAVEN

    Science.gov (United States)

    Ono, Y. H.; Correia, Carlos M.; Lardière, O.; Andersen, D. R.; Oya, S.; Akiyama, M.; Gamroth, D.; Jackson, K.; Martin, O.; Bradley, C.

    2016-07-01

    This paper presents the AO performance we got on-sky with RAVEN, a Multi-Object Adaptive Optics (MOAO) technical and science demonstrator installed and tested at the Subaru telescope. We report Ensquared-Energy (EE) and Full Width at Half Maximum (FWHM) measured from science images on Subaru's IRCS taken during all of the on-sky observing runs. We show these metrics as function of different AO modes and atmospheric conditions for two asterisms of natural guide stars. The performances of the MOAO and Ground-Layer AO (GLAO) modes are between the classical Single-Conjugate AO (SCAO) and seeing-limited modes. We achieve the EE of 30% in H-band with the MOAO correction, which is a science requirement for RAVEN. The MOAO provides sightly better performance than the GLAO mode in both asterisms. One of the reasons which cause this small difference between the MOAO and GLAO modes may be the strong GL contribution. Also, the performance of the MOAO modes is affected by the accuracy of the on-sky turbulence profiling by the SLOpe Detection And Ranging (SLODAR) method.

  18. An Exploration of Play Behaviors in Raven Nestlings

    Directory of Open Access Journals (Sweden)

    Mathias Osvath

    2014-05-01

    Full Text Available Play is widespread among vertebrates. Some animal groups stand out in their play behaviors in levels of complexity, innovativeness, sociality, and volume. Despite the vast phylogenetic distance between corvids, parrots, great apes, and dolphins, all are usually identified as among the most playful. These groups also have several complex cognitive skills in common. There is growing agreement that play has evolved multiple times under different selective pressures in different lineages. As these groups appear similar in their complex play but are separated by considerable evolutionary distance, the similarity is unlikely to result from homology. Far more probable is that the similarity has arisen from convergent or parallel evolution. It is important to conduct comparative ontogenetic play studies on these groups to learn more about what basic processes underlie complex play and whether such play is, indeed, related to complex cognition. Toward that end, we explored the play behavior of raven nestlings over the last ten days before they fledged. We found high levels of play both in terms of instances initiated and duration. The play behaviors were at level with – or above – maintenance behaviors and flight training. Most of the play was object play, but social object play and apparent play contagion was also recorded. The importance of play in developing young ravens is clear. The reasons might be less clear, however play could underlie both object-related and social development.

  19. Tomography and calibration for Raven: from simulations to laboratory results

    Science.gov (United States)

    Jackson, Kate; Correia, Carlos; Lardière, Olivier; Andersen, Dave; Bradley, Colin; Pham, Laurie; Blain, Célia; Nash, Reston; Gamroth, Darryl; Véran, Jean-Pierre

    2014-07-01

    This paper discusses static and dynamic tomographic wave-front (WF) reconstructors tailored to Multi-Object Adaptive Optics (MOAO) for Raven, the first MOAO science and technology demonstrator recently installed on an 8m telescope. We show the results of a new minimum mean- square error (MMSE) solution based on spatio-angular (SA) correlation functions, which extends previous work in Correia et al, JOSA-A 20131 to adopt a zonal representation of the wave-front and its associated signals. This solution is outlined for the static reconstruction and then extended for the use of stand-alone temporal prediction and as a prediction model in a pupil plane based Linear Quadratic Gaussian (LQG) algorithm. We have fully tested our algorithms in the lab and compared the results to simulations of the Raven system. These simulations have shown that an increase in limiting magnitude of up to one magnitude can be expected when prediction is implemented and up to two magnitudes when the LQG is used.

  20. Modeling the Accretion Structure of AU Mon

    CERN Document Server

    Atwood-Stone, Corwin; Richards, Mercedes T; Budaj, Jan; Peters, Geraldine J

    2012-01-01

    AU Mon is a long-period (11.113 d) Algol-type binary system with a persistent accretion disk that is apparent as double-peaked H-alpha emission. We present previously unpublished optical spectra of AU Mon which were obtained over several years with dense orbital phase coverage. We utilize these data, along with archival UV spectra, to model the temperature and structure of the accretion disk and the gas stream. Synthetic spectral profiles for lines including H-alpha, H-beta, and the Al III and Si IV doublets were computed with the Shellspec program. The best match between the model spectra and the observations is obtained for an accretion disk of inner/outer radius 5.1/23 R_sun, thickness of 5.2 R_sun, density of 1.0e-13 g/cm^3, and maximum temperature of 14000 K, along with a gas stream at a temperature of ~8000 K transferring ~2.4e-9 M_sun/yr. We show H-alpha Doppler tomograms of the velocity structure of the gas, constructed from difference profiles calculated through sequentially subtracting contributions...

  1. AN EPIZOOTIC OF EMERGING NOVEL AVIAN POX IN CARRION CROWS (CORVUS CORONE) AND LARGE-BILLED CROWS (CORVUS MACRORHYNCHOS) IN JAPAN.

    Science.gov (United States)

    Fukui, Daisuke; Nakamura, Makiko; Yamaguchi, Tsuyoshi; Takenaka, Makiko; Murakami, Mami; Yanai, Tokuma; Fukushi, Hideto; Yanagida, Kazumi; Bando, Gen; Matsuno, Keita; Nagano, Masashi; Tsubota, Toshio

    2016-04-28

    In 2006-10, an epizootic of emerging avian pox occurred in Carrion Crows ( Corvus corone ) and Large-billed Crows ( Corvus macrorhynchos ), leading to mortality of juvenile crows in Hokkaido, the northernmost island of Japan. We diagnosed 27 crows with proliferative skin lesions (19 carcasses and eight biopsied cases [one in zoo captivity]) as avian pox clinically, histopathologically by detection of Avipoxvirus-specific 4b core protein (P4b) gene, and epidemiologically. The fatal cases demonstrated intensively severe infection and aggressive lesions with secondary bacterial infection. Since the first identification of avian pox in Sapporo, Japan, in 2006, the frequency of mortality events has increased, peaking in 2007-08. Mortalities have subsequently occurred in other areas, suggesting disease expansion. In Sapporo, prevalence of avian pox evaluated by field censuses during 2007-12 was 17.6% (6.6-27.2%), peaked during 2007-08 and 2008-09, and then decreased. All diseased crows were juveniles, except for one adult. The number of crows assembling in the winter roosts had been stable for >10 yr; however, it declined in 2007-08, decreased by about 50% in 2008-09, and recovered to the previous level in 2009-10, correlated with the avian pox outbreak. Thus, avian pox probably contributed to the unusual crow population decline. All P4b sequences detected in six specimens in Sapporo were identical and different from any previously reported sequences. The sequence detected in the zoo-kept crow was distinct from any reported clades, and interspecies transmission was suspected. This report demonstrates an emerging novel avian pox in the Japanese avifauna and in global populations of Carrion Crows and Large-billed Crows. Longitudinal monitoring is needed to evaluate its impact on the crow population.

  2. Advanced probabilistic risk analysis using RAVEN and RELAP-7

    Energy Technology Data Exchange (ETDEWEB)

    Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Alfonsi, Andrea [Idaho National Lab. (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Lab. (INL), Idaho Falls, ID (United States); Cogliati, Joshua [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kinoshita, Robert [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2014-06-01

    RAVEN, under the support of the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program [1], is advancing its capability to perform statistical analyses of stochastic dynamic systems. This is aligned with its mission to provide the tools needed by the Risk Informed Safety Margin Characterization (RISMC) path-lead [2] under the Department Of Energy (DOE) Light Water Reactor Sustainability program [3]. In particular this task is focused on the synergetic development with the RELAP-7 [4] code to advance the state of the art on the safety analysis of nuclear power plants (NPP). The investigation of the probabilistic evolution of accident scenarios for a complex system such as a nuclear power plant is not a trivial challenge. The complexity of the system to be modeled leads to demanding computational requirements even to simulate one of the many possible evolutions of an accident scenario (tens of CPU/hour). At the same time, the probabilistic analysis requires thousands of runs to investigate outcomes characterized by low probability and severe consequence (tail problem). The milestone reported in June of 2013 [5] described the capability of RAVEN to implement complex control logic and provide an adequate support for the exploration of the probabilistic space using a Monte Carlo sampling strategy. Unfortunately the Monte Carlo approach is ineffective with a problem of this complexity. In the following year of development, the RAVEN code has been extended with more sophisticated sampling strategies (grids, Latin Hypercube, and adaptive sampling). This milestone report illustrates the effectiveness of those methodologies in performing the assessment of the probability of core damage following the onset of a Station Black Out (SBO) situation in a boiling water reactor (BWR). The first part of the report provides an overview of the available probabilistic analysis capabilities, ranging from the different types of distributions available, possible sampling

  3. Microbiological and serological monitoring in hooded crow (Corvus corone cornix in the Region Lombardia, Italy

    Directory of Open Access Journals (Sweden)

    Guido Grilli

    2010-01-01

    Full Text Available The health status of 276 hooded crows (Corvus corone cornix from various provinces of Lombardy was monitored for three years. Bacteriological examination detected E. coli (76%, Campylobacter jejuni (17%, Salmonella typhimurium (11.6%, Yersinia spp. (6.5%, Clamydophila abortus and C. psittaci (2.6%; from six birds showing severe prostration Pasteurella multocida was isolated. Virological and serological tests were negative for Avian Influenza virus (AIV, West Nile virus (WNV and only three samples were positive for Newcastle disease virus (NDV but only at serology (titre 1:16.

  4. Comparative West Nile virus detection in organs of naturally infected American Crows (Corvus brachyrhynchos).

    OpenAIRE

    Panella, N. A.; Kerst, A. J.; Lanciotti, R. S.; Bryant, P.; Wolf, B.; Komar, N.

    2001-01-01

    Widespread deaths of American Crows (Corvus brachyrhynchos)were associated with the 1999 outbreak of West Nile (WN) virus in the New York City region. We compared six organs from 20 crow carcasses as targets for WN virus detection. Half the carcasses had at least one positive test result for WN virus infection. The brain was the most sensitive test organ; it was the only positive organ for three of the positive crows. The sensitivity of crow organs as targets for WN virus detection makes crow...

  5. The hooded crow (Corvus cornix) as an environmental bioindicator species of heavy metal contamination.

    Science.gov (United States)

    Giammarino, Mauro; Quatto, Piero; Squadrone, Stefania; Abete, Maria Cesarina

    2014-10-01

    This study aims to examine the possible presence of lead and cadmium in the liver and kidneys of hooded crows (Corvus cornix). Liver and kidneys of hooded crow carcasses were collected in Province of Cuneo (Piedmont, Italy) in order to detect lead and cadmium content. Significant differences were found in lead and cadmium levels between areas of intensive cultivation versus areas where meadows are prevalent. Moreover, age greatly influenced the burden of heavy metals, while sex did not seem to affect the level of contamination. The source of contamination may be phosphate fertilizers used for intensive cultivation in the study area.

  6. Photometric Period of the Star PZ Mon

    Science.gov (United States)

    Antonyuk, K. A.; Bondar', N. I.; Pit', N. V.

    2017-09-01

    Results are presented from a search for periodic variations in the brightness and color indices of the active star PZ Mon based on many years of photometric data from 1992 to 2015. The photometric period derived from the entire set of observations is 34.16 days, but the period may vary by 1.5% within individual intervals. The color index V-R varies with the same period. These variations are indicative of reddening of the star with decreasing brightness. A correlation between the values exists over the entire observation interval. The variations in B-V occur over an interval of 26-28 days. A nonuniqueness in these variations shows up in a brightness-color index diagram: a reduction in the color index with decreasing brightness is observed in some epochs, which can be explained in terms of a spottedness model by the presence of cold, as well as hot, formations on the star's surface.

  7. Voice Register in Mon: Acoustics and Electroglottography.

    Science.gov (United States)

    Abramson, Arthur S; Tiede, Mark K; Luangthongkum, Theraphan

    2015-01-01

    Mon is spoken in villages in Thailand and Myanmar. The dialect of Ban Nakhonchum, Thailand, has 2 voice registers, modal and breathy; these phonation types, along with other phonetic properties, distinguish minimal pairs. Four native speakers of this dialect recorded repetitions of 14 randomized words (7 minimal pairs) for acoustic analysis. We used a subset of these pairs in a listening test to verify the perceptual robustness of the register distinction. Acoustic analysis found significant differences in noise component, spectral slope and fundamental frequency. In a subsequent session 4 speakers were also recorded using electroglottography, which showed systematic differences in the contact quotient. The salience of these properties in maintaining the register distinction is discussed in the context of possible tonogenesis for this language. © 2015 S. Karger AG, Basel.

  8. Comparative study of factor structure of Raven's Coloured Progressive Matrices.

    Science.gov (United States)

    Schmidtke, A; Schaller, S

    1980-12-01

    The Raven Coloured Progressive Matrices were administered on group or individual bases to children ranging in age from 4 yr. 9 mo. to 11 yr. 0 mo. (N = 728). Factor analysis yielded three factors: 1. Perceptual closure involving complex figures and patterns with heterogeneous inner structures, 2. Concrete and abstract reasoning, 3. Completion of homogeneous patterns and recognition of given elements. Factor matrix comparisons across age groups resulted in a mean similarity coefficient of .75. Comparisons of data with earlier analyses also resulted in high similarity. This supports the hypothesis of a three-factor structure rather than a four-factor solution or a simple dual classification into items which can be solved by perceptual processes and those which require conceptual solutions.

  9. Computer Security: Pokémon GO! Or not?

    CERN Document Server

    Stefan Lueders, Computer Security Team

    2016-01-01

    Have you already joined the hype surrounding the No. 1 iOS and Android app “Pokémon GO” and started hunting for wild virtual Pokémon while walking through the real world? Have fun and catch them all!!! But also take some physical and digital care!   If you haven’t heard of “Pokémon GO”, it is an iOS and Android game in which your virtual avatar has to hunt for cute and sometimes less cute little monsters, so-called Pokémon (if you are as old as me or have kids, yes, those GameBoy, TV Series, card-game Pokémon!). The ultimate goal is to find and collect all 150 different Pokémon species. Your smartphone’s location information displayed on a Google map lookalike provides you with hints as to where to find them. Augmented reality is employed to project virtual Pokémon in your vicinity onto your smartphone’s camera picture so that you can catch them by th...

  10. Senkin Evolutions - Pokémon-vaikutteisen vaatemalliston suunnitteluprosessi

    OpenAIRE

    Senkin, Jenna

    2016-01-01

    Opinnäytetyön tavoitteena oli luoda Pokémon-hahmoista inspiroitunut ammattimainen vaatemallisto sesongille syys-talvi 2017 - 2018. Aiheen valintaan vaikutti tekijän oman kiinnostuneisuuden lisäksi aiheen ajankohtaisuus Pokémon-videopelien 20-vuotisjuhlan sekä erittäin suositun Pokémon Go -pelin ilmestymisen johdosta. Työssä esiteltiin Senkin-brändiä ja kerrottiin suunnittelun lähtökohdista, aiemmista mallistoista ja tuotteista sekä inspiraatiosta. Lisäksi työssä käsiteltiin suunnittelijai...

  11. Apskaitos politikos formavimas įmonėje

    OpenAIRE

    Varanavičiūtė, Ingrida

    2009-01-01

    Tyrimo objektas – apskaitos politikos formavimas Lietuvos įmonėse. Tyrimo tikslas – nustatyti apskaitos politikos Lietuvoje pasirinkimą lemiančius veiksnius, pateikti apskaitos politikos formavimo modelį ir patikrinti jo tinkamumą Lietuvos įmonėse. Tyrimo problema: apskaitos politikos pasirinkimą lemiančių veiksnių įtakos apskaitos politikos formavimo modeliui nustatymo Lietuvos įmonėse nepakankamas metodologinis pagrindimas The object of the research is a company’s financial accounting p...

  12. Unidimensionality study about Raven's Coloured Standard Progressive Matrices / Estudo sobre a unidimensionalidade do teste Matrizes Progressivas Coloridas de Raven

    Directory of Open Access Journals (Sweden)

    Fermino Fernandes Sisto

    2006-01-01

    Full Text Available This study assessed the adjustment of the Rasch model concerning unidimensionality of Raven's Colored Standard Progressive Matrices. Four hundred and forty-one (441 elementary school children, of both genders, attending first to fourth grade were investigated. Considering that residuals may be enough to violate the intrinsic unidimensionality of the items, residual principal component analysis was used to assess the possibility of this violation. Items with higher factorial loading relating to the positive and negative dimensions on the first factor were selected, in respect to the test as a whole and to each subset in particular. These items were re-analyzed with the Rasch model within each data group. Then the positive and negative factor measures were correlated. Results suggested the possibility of other dimensions besides those extracted by Rasch model based on the test and subset B, though the correlation coefficients of the other subsets were close to rejection.

  13. Declining mortality in American crow (Corvus brachyrhynchos) following natural West Nile virus infection.

    Science.gov (United States)

    Reed, Lisa M; Johansson, Michael A; Panella, Nicholas; McLean, Robert; Creekmore, Terry; Puelle, Rose; Komar, Nicholas

    2009-09-01

    The American crow (Corvus brachyrhynchos) is known to suffer 100% mortality from infection with the New York 1999 strain of West Nile virus (WNV). Following the initial detection of WNV in North America in 1999, we measured prevalence of WNV-reactive antibodies ("seroprevalence") in free-ranging American and fish crows (Corvus ossifragus) of central New Jersey after each transmission season through 2005. In 2002, seroprevalence in American crow juveniles increased to 14% from the 5% of the previous year, potentially indicating increased survival in this species. Using the annual seroprevalence measurements and the number of human West Nile neuroinvasive disease cases as a surrogate for WNV transmission intensity, we developed a model to estimate the annual WNV-associated mortality rates among both of these crow species. Our model supports the hypothesis that mortality is changing over time; the WNV-associated mortality rate declined over time by 1.5% for American crow and by 1.1% for fish crow. The probability that the trend in mortality was negative was 90% for the American crow and 60% for the fish crow.

  14. MATHEMATICAL FRAMEWORK FOR THE ANALYSIS OF DYNAMC STOCHASTIC SYSTEMS WITH THE RAVEN CODE

    Energy Technology Data Exchange (ETDEWEB)

    C. Rabiti; D. Mandelli; J. Cogliati; R. Kinoshita

    2013-05-01

    RAVEN (Reactor Analysis and Virtual control Environment) is a software code under development at Idaho National Laboratory aimed at performing probabilistic risk assessment and uncertainty quantification using RELAP-7, for which it acts also as a simulation controller. In this paper we will present the equations characterizing a dynamic stochastic system and we will then discuss the behavior of each stochastic term and how it is accounted for in the RAVEN software design. Moreover we will present preliminary results of the implementation.

  15. The volcanotectonic structures of Ascraeus Mons

    Science.gov (United States)

    Byrne, Paul; van Wyk de Vries, Benjamin; Murray, John; Troll, Valentin

    2010-05-01

    Ascraeus Mons is the tallest of three large volcanoes situated to the NE of the Tharsis Rise and aligned parallel to a NE-SW regional structural trend. With a vertical relief of 14.9 km and an E-W diameter of 400 km, the main shield has a convex-upward morphology and a summit plateau, whilst significantly younger lava rift aprons issue from expansive embayments on its lower flanks onto the surrounding plains. The volcano hosts several types of well-preserved surface structures, and so has served as a basis for understanding Martian volcano geodynamics. Previous studies have not incorporated the full set of structures on Ascraeus Mons, however, and have been limited by photogeological data of lower resolution than that available today. We have used a GIS of MOLA, HRSC, and CTX data to map the spatial and temporal distributions of the most pronounced structures on Ascraeus Mons — its summit calderas, flank terraces, arcuate graben, and pit craters — to develop as comprehensive an evolutionary sequence for this volcano as possible. We summarise our mapping results here. · The 55-km wide caldera complex consists of at least three NE-SW-aligned depressions, with a possible fourth caldera on the periphery. Depths range from 818 m for the shallowest caldera to 3,110 m for the deepest. Whilst most lavas on the volcano are summit-derived, even the latest flows are cut by post-caldera formation subsidence and fracturing. · Flank terraces, topographically subtle outward-verging, convex-upward structures, encircle Ascraeus Mons in an imbricate, fish-scale pattern. 142 terraces in total extend from immediately below the summit to the basal plains, but do not occur on the rift aprons. The mean circumferential length for terraces is 31.9 km, though terraces over 60 km long lie on the NW and SE flanks. · Arcuate graben crosscut the NW flanks and surrounding plains, and extend for ca. 90° concentric to the volcano. These structures vary in width from 400 m to 1,200 m, and

  16. Fission-fusion dynamics over large distances in raven non-breeders.

    Science.gov (United States)

    Loretto, Matthias-Claudio; Schuster, Richard; Itty, Christian; Marchand, Pascal; Genero, Fulvio; Bugnyar, Thomas

    2017-03-23

    The influence of fission-fusion dynamics, i.e., temporal variation in group size and composition, on social complexity has been studied in large-brained mammals that rely on social bonds. Little is known about birds, even though some species like ravens have recently received attention for their socio-cognitive skills and use of social bonds. While raven breeders defend territories year-round, non-breeders roam through large areas and form groups at food sources or night roosts. We here examined the fission-fusion patterns of non-breeding ravens over years, investigating whether birds meet repeatedly either at the same or at different locations. We combined four large datasets: presence-absence observations from two study sites (Austria, Italy) and GPS-tracking of ravens across two study areas (Austria, France). As expected, we found a highly dynamic system in which individuals with long phases of temporary settlement had a high probability of meeting others. Although GPS-tagged ravens spread out over thousands of square kilometres, we found repeated associations between almost half of the possible combinations at different locations. Such a system makes repeated interactions between individuals at different sites possible and likely. High fission-fusion dynamics may thus not hinder but shape the social complexity of ravens and, possibly, other long-term bonded birds.

  17. Variability monitoring of OB stars during the Mons campaign

    CERN Document Server

    Morel, T; Eversberg, T; Alves, F; Arnold, W; Bergmann, T; Viegas, N G Correia; Fahed, R; Fernando, A; Carreira, L F Gouveia; Hunger, T; Knapen, J H; Leadbeater, R; Dias, F Marques; Moffat, A F J; Reinecke, N; Ribeiro, J; Romeo, N; Gallego, J Sanchez; Santos, E M dos; Schanne, L; Stahl, O; Stober, Ba; Stober, Be; Vollmann, K; Corcoran, M F; Dougherty, S M; Hamaguchi, K; Pittard, J M; Pollock, A M T; Williams, P M

    2010-01-01

    We present preliminary results of a 3-month campaign carried out in the framework of the Mons project, where time-resolved Halpha observations are used to study the wind and circumstellar properties of a number of OB stars.

  18. The peculiar variable V838 Mon

    CERN Document Server

    Kimeswenger, S; Schmeja, S; Armsdorfer, B

    2002-01-01

    V838 Mon underwent, after a first nova-like outburst in January and a usual decline, a second outburst after one month, and a third weak one again a month later. Moreover a very small increase of the temperature at the beginning of April gives us a hint on a physical process with a period of one month. We obtained a BVRIc time sequence and modelled the photometric behaviour of the object. This leads us to the conclusion that the interstellar foreground extinction has to be 0.6 < E(B-V) < 0.8 and that the quasi-photosphere had persistently unusually low temperatures for nova-like systems. The photometry was used to follow the dramatic changes of the expansion. While the appearing 10 micron excess can be well described by the heating of material ejected during this event, the IRAS emission near the location of the progenitor, originates most likely from dust, which were formed during the previous evolution of the object. Assuming that the light echoes are coming from circumstellar material, the distance i...

  19. Raven's progressive matrices performance in adults with traumatic brain injury.

    Science.gov (United States)

    Hiscock, Merrill; Inch, Roxanne; Gleason, Angela

    2002-01-01

    Raven's Progressive Matrices (RPM), a widely used test of reasoning, is sensitive to aging, but it has not proven to be helpful in the assessment of acquired focal or lateralized brain damage. Clinical experience suggests that the test is insensitive to traumatic brain injury (TBI), but the data are difficult to interpret because of rapid inflation of norms over time (the Flynn effect). In examining data from 64 adult patients with TBI who were administered the Standard RPM between 1981 and 1989, we used previous and subsequent norms conjointly to adjust for the Flynn effect. Anterograde and retrograde adjustment of norms led to highly convergent results. After adjustment for the Flynn effect, RPM performance was comparable to Wechsler IQ, significantly below estimated premorbid IQ, and nearly 2 SD above performance on 2 TBI-sensitive neuropsychological tests. We conclude that RPM performance is neither more nor less sensitive than Wechsler IQ to the consequences of TBI in the adult, but erroneous conclusions are likely to be reached if the Flynn effect is not taken into account.

  20. Chemotherapeutic reactions of Chandlerella hawkingi, the filarial parasite of the Indian jungle crow, Corvus macrorhynchos (Agler).

    Science.gov (United States)

    Chatterjee, R J; Sen, A B

    1969-02-01

    1. A high percentage of Indian jungle crows (Corvus macrorhynchos Wagler), found in and around Lucknow, harbour a natural filarial infection Chandlerella hawkingi. The microfilariae of this species are sheathed and show nocturnal periodicity.2. Fourteen compounds active against other kinds of filariae, especially against Litomosoides carinii, were tested against Ch. hawkingi in jungle crows to find whether this infection would be suitable for routine filarial chemotherapy. This is apparently the first report of systematic screening of antifilarial compounds against an avian filariasis.3. Tartar emetic (10 mg/kg intravenously, daily for 6 days) and arsenamide (5 mg/kg intraperitoneally, daily for 6 days) proved to be effective in killing adult worms. Trivalent tryparsamide, though effective, was toxic in the doses tried. Diethylcarbamazine and other compounds tested were ineffective.4. The chemotherapeutic susceptibilities of Ch. hawkingi differ considerably from those of L. carinii and Wuchereria bancrofti.

  1. Chemotherapeutic reactions of Chandlerella hawkingi, the filarial parasite of the Indian jungle crow, Corvus macrorhynchos (Wagler)

    Science.gov (United States)

    Chatterjee, R. K.; Sen, A. B.

    1969-01-01

    1. A high percentage of Indian jungle crows (Corvus macrorhynchos Wagler), found in and around Lucknow, harbour a natural filarial infection Chandlerella hawkingi. The microfilariae of this species are sheathed and show nocturnal periodicity. 2. Fourteen compounds active against other kinds of filariae, especially against Litomosoides carinii, were tested against Ch. hawkingi in jungle crows to find whether this infection would be suitable for routine filarial chemotherapy. This is apparently the first report of systematic screening of antifilarial compounds against an avian filariasis. 3. Tartar emetic (10 mg/kg intravenously, daily for 6 days) and arsenamide (5 mg/kg intraperitoneally, daily for 6 days) proved to be effective in killing adult worms. Trivalent tryparsamide, though effective, was toxic in the doses tried. Diethylcarbamazine and other compounds tested were ineffective. 4. The chemotherapeutic susceptibilities of Ch. hawkingi differ considerably from those of L. carinii and Wuchereria bancrofti. PMID:5774047

  2. Prion remains infectious after passage through digestive system of American crows (Corvus brachyrhynchos.

    Directory of Open Access Journals (Sweden)

    Kurt C VerCauteren

    Full Text Available Avian scavengers, such as American crows (Corvus brachyrhynchos, have potential to translocate infectious agents (prions of transmissible spongiform encephalopathy (TSE diseases including chronic wasting disease, scrapie, and bovine spongiform encephalopathy. We inoculated mice with fecal extracts obtained from 20 American crows that were force-fed material infected with RML-strain scrapie prions. These mice all evinced severe neurological dysfunction 196-231 d postinoculation (x =198; 95% CI: 210-216 and tested positive for prion disease. Our results suggest a large proportion of crows that consume prion-positive tissue are capable of passing infectious prions in their feces (ˆp=1.0; 95% CI: 0.8-1.0. Therefore, this common, migratory North American scavenger could play a role in the geographic spread of TSE diseases.

  3. QM/MM Calculations with deMon2k

    Directory of Open Access Journals (Sweden)

    Dennis R. Salahub

    2015-03-01

    Full Text Available The density functional code deMon2k employs a fitted density throughout (Auxiliary Density Functional Theory, which offers a great speed advantage without sacrificing necessary accuracy. Powerful Quantum Mechanical/Molecular Mechanical (QM/MM approaches are reviewed. Following an overview of the basic features of deMon2k that make it efficient while retaining accuracy, three QM/MM implementations are compared and contrasted. In the first, deMon2k is interfaced with the CHARMM MM code (CHARMM-deMon2k; in the second MM is coded directly within the deMon2k software; and in the third the Chemistry in Ruby (Cuby wrapper is used to drive the calculations. Cuby is also used in the context of constrained-DFT/MM calculations. Each of these implementations is described briefly; pros and cons are discussed and a few recent applications are described briefly. Applications include solvated ions and biomolecules, polyglutamine peptides important in polyQ neurodegenerative diseases, copper monooxygenases and ultra-rapid electron transfer in cryptochromes.

  4. Frequent development of inflammatory lesions and lymphoid foci in the kidneys of Japanese wild crows (Corvus macrorhynchos and Corvus corone) as a result of the entry of causal agents via the renal portal blood.

    Science.gov (United States)

    Hirata, Akihiro; Yonemaru, Kayoko; Kubo, Masahito; Murakami, Mami; Sakai, Hiroki; Yanai, Tokuma; Masegi, Toshiaki

    2010-03-01

    Although the increase in the number of wild crows is causing social problems in urban areas, crows play an increasingly important role in monitoring serious infectious diseases, such as highly pathogenic avian influenza and West Nile fever. To gain a better understanding of normal conditions and common disorders in crows, we conducted a retrospective study of wild crows captured in central Japan in the 1990s and examined the necropsy findings from 166 jungle crows (Corvus macrorhynchos) and 74 carrion crows (Corvus corone). We found frequent development of lymphoid foci and inflammatory lesions in the kidneys of both species of crows. These findings were unrelated to place or date of capture, indicating the universality of renal lesion developments in the Corvus species. In the kidneys, suppurative granulomas were concentrated in the renal cortex and the vein wall, indicating the haematoegenous spread of causal agents. However, the glomeruli remained intact, unlike the spreading of causal agents via arterial blood, which strongly suggested the renal portal blood as a possible entry route of causal agents. The renal lymphoid foci showed the same distribution as the granulomas, supporting the possibility of external agents entering through renal portal blood. We also identified types of parasites in Japanese wild crows by means of histopathological analysis. We hope that our data will contribute to the appropriate evaluation and a better understanding of pathological conditions in Japanese wild crows.

  5. Arsia Mons Collapse Pits in IR

    Science.gov (United States)

    2004-01-01

    [figure removed for brevity, see original site] We will be looking at collapse pits for the next two weeks. Collapse pits on Mars are formed in several ways. In volcanic areas, channelized lava flows can form roofs which insulate the flowing lava. These features are termed lava tubes on Earth and are common features in basaltic flows. After the lava has drained, parts of the roof of the tube will collapse under its own weight. These collapse pits will only be as deep as the bottom of the original lava tube. Another type of collapse feature associated with volcanic areas arises when very large eruptions completely evacuate the magma chamber beneath the volcano. The weight of the volcano will cause the entire edifice to subside into the void space below it. Structural features including fractures and graben will form during the subsidence. Many times collapse pits will form within the graben. In addition to volcanic collapse pits, Mars has many collapse pits formed when volatiles (such as subsurface ice) are released from the surface layers. As the volatiles leave, the weight of the surrounding rock causes collapse pits to form. These collapse pits are found on the flank of Arsia Mons and are related to lava tube collapse. Image information: IR instrument. Latitude -8.8, Longitude 240.4 East (119.6 West). 100 meter/pixel resolution. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was

  6. Effects of Mediated Learning Experience on Raven's Matrices Scores of African and Non-African University Students in South Africa.

    Science.gov (United States)

    Skuy, Mervyn; Gewer, Anthony; Osrin, Yael; Khunou, David; Fridjhon, Peter; Rushton, J. Philippe

    2002-01-01

    Studied whether mediated learning experience would improve the scores of African students on Raven's Standard Progressive Matrices. Seventy African and 28 non-African college students in South Africa were given the Raven's Progressive Matrices on 2 occasions, and some subjects were exposed to the mediated learning experience. Both groups improved…

  7. Poe, between cinema and literature: an intermedial reading of The Raven

    Directory of Open Access Journals (Sweden)

    Caio Antônio de Medeiros Nóbrega Nunes Gomes

    2017-01-01

    In The Raven (2012, film directed by James McTeigue, in addition to having Edgar Allan Poe as protagonist and allusions to many of his texts, the relation between cinema and literature is deepened by the presence of issues regarding the medium of literature and its materiality, sociality and economy. This article proposes an intermedial reading of The Raven, aiming to investigate the process of intermedial referencing accomplished by the cinema in relation to literature. Our analysis is supported by theoretical principles drawn especially from Rajewski (2012 and Moser (2006. Finally, two conclusions were established: i. the film, while making the literary medium opaque, concealed its own audiovisual mediality; ii. The Raven associates itself to a series of discourses concerning the contemporary relevance of the American author, contributing to the consolidation of Edgar Allan Poe as a cultural signifier.

  8. Training effects on Raven's progressive matrices in young, middle-aged, and elderly adults.

    Science.gov (United States)

    Denney, N W; Heidrich, S M

    1990-03-01

    Previous training studies of fluid intellectual abilities have involved training on either figural relations or induction tasks. In the present study, young, middle-aged, and elderly adults were given training on another measure of fluid ability--Raven's Progressive Matrices. The training involved a strategy-modeling technique that lasted no more than a few minutes. The results indicated that (a) performance on the Raven decreased with increasing age, (b) training significantly improved performance, and (c) the effect of training did not differ as a function of the age or sex of the subjects. Thus, the results indicate that performance on the Raven can be significantly improved in a single, brief training session.

  9. Predicting performance on the Raven's Matrices: The roles of associative learning and retrieval efficiency.

    Science.gov (United States)

    Lilienthal, Lindsey; Tamez, Elaine; Myerson, Joel; Hale, Sandra

    2013-01-01

    Previous studies have shown that performance on Williams and Pearlberg's (2006) complex associative learning task is a good predictor of fluid intelligence. This task is similar in structure to that used in studying the fan effect (Anderson, 1974), as both tasks involve forming multiple associations and require retrieval in the face of interference. The purpose of the present study was to investigate the relations among complex associative learning, working memory, and fluid intelligence. Specifically, we asked whether retrieval efficiency, as measured by the fan effect, could account for the relation between complex associative learning and performance on Raven's Advanced Progressive Matrices. Consistent with previous findings, complex associative learning predicted Raven's performance, but the fan effect did not account for this relation. Notably, the learning phase of the fan effect task was significantly correlated with both complex associative learning and Raven's performance, providing further support for the importance of learning as a predictor of fluid intelligence.

  10. Counting with Colours? Effect of Colours on the Numerical Abilities of House Crows (Corvus splendens) and Common Myna (Acridotheres tristis)

    OpenAIRE

    Rahman, Nor Amira Abdul; Ali, Zalila; Zuharah, Wan Fatma; Nik FADZLY

    2016-01-01

    We conducted several aviary experiments to investigate the influence of colours in quantity judgments of two species of birds; house crow (Corvus splendens) and common myna (Acridotheres tristis). Different quantity (in seven different food proportions) of mealworms were presented nonsequentially to all birds using artificially coloured red mealworms, for experiment 1, and using artificially coloured green mealworms, for experiment 2. Both red and green coloured mealworms have no significant ...

  11. Patterns of evolution of MHC class II genes of crows (Corvus suggest trans-species polymorphism

    Directory of Open Access Journals (Sweden)

    John A. Eimes

    2015-03-01

    Full Text Available A distinguishing characteristic of genes that code for the major histocompatibility complex (MHC is that alleles often share more similarity between, rather than within species. There are two likely mechanisms that can explain this pattern: convergent evolution and trans-species polymorphism (TSP, in which ancient allelic lineages are maintained by balancing selection and retained by descendant species. Distinguishing between these two mechanisms has major implications in how we view adaptation of immune genes. In this study we analyzed exon 2 of the MHC class IIB in three passerine bird species in the genus Corvus: jungle crows (Corvus macrorhynchos japonensis American crows (C. brachyrhynchos and carrion crows (C. corone orientalis. Carrion crows and American crows are recently diverged, but allopatric, sister species, whereas carrion crows and jungle crows are more distantly related but sympatric species, and possibly share pathogens linked to MHC IIB polymorphisms. These patterns of evolutionary divergence and current geographic ranges enabled us to test for trans-species polymorphism and convergent evolution of the MHC IIB in crows. Phylogenetic reconstructions of MHC IIB sequences revealed several well supported interspecific clusters containing all three species, and there was no biased clustering of variants among the sympatric carrion crows and jungle crows. The topologies of phylogenetic trees constructed from putatively selected sites were remarkably different than those constructed from putatively neutral sites. In addition, trees constructed using non-synonymous substitutions from a continuous fragment of exon 2 had more, and generally more inclusive, supported interspecific MHC IIB variant clusters than those constructed from the same fragment using synonymous substitutions. These phylogenetic patterns suggest that recombination, especially gene conversion, has partially erased the signal of allelic ancestry in these species. While

  12. Pokémon GO: gevangen in eigendom

    NARCIS (Netherlands)

    de Bruin, R.W.

    2016-01-01

    Pokémon Go is één van de eerste van een waarschijnlijk groot aantal (spel)omgevingen waar de werkelijke- en virtuele wereld met elkaar versmelten. In deze ‘hybride’ doen zich nieuwe rechtsvragen voor. Een klein aantal daarvan komt aan de orde orde in dit artikel. Vooralsnog lijkt het erop dat het Ne

  13. Venus - 3D Perspective View of Gula Mons

    Science.gov (United States)

    1991-01-01

    Gula Mons is displayed in this computer-simulated view of the surface of Venus. The viewpoint is located 110 kilometers (68 miles) southwest of Gula Mons at the same elevation as the summit, 3 kilometers (1.9 miles) above Eistla Regio. Lava flows extend for hundreds of kilometers across the fractured plains. The view is to the northeast with Gula Mons appearing at the center of the image. Gula Mons, a 3 kilometer (1.9 mile) high volcano, is located at approximately 22 degrees north latitude, 359 degrees east longitude in western Eistla Regio. Magellan synthetic aperture radar data is combined with radar altimetry to produce a three-dimensional map of the surface. Rays cast in a computer intersect the surface to create a three-dimensional perspective view. Simulated color and a digital elevation map developed by the U.S. Geological Survey are used to enhance small-scale structure. The simulated hues are based on color images recorded by the Soviet Venera 13 and 14 spacecraft. The image was produced by the JPL Multimission Image Processing Laboratory and is a single frame from a video released at the March 5, 1991, JPL news conference.

  14. Pokémon GO: gevangen in eigendom

    NARCIS (Netherlands)

    de Bruin, R.W.|info:eu-repo/dai/nl/357572076

    2016-01-01

    Pokémon Go is één van de eerste van een waarschijnlijk groot aantal (spel)omgevingen waar de werkelijke- en virtuele wereld met elkaar versmelten. In deze ‘hybride’ doen zich nieuwe rechtsvragen voor. Een klein aantal daarvan komt aan de orde orde in dit artikel. Vooralsnog lijkt het erop dat het Ne

  15. Observations of V838 Mon in the CO rotational lines

    CERN Document Server

    Kaminski, T; Tylenda, R

    2007-01-01

    We investigate the structure of a field around the position of V838 Mon as seen in the lowest CO rotational transitions. We also measure and analyse emission in the same lines at the position of V838 Mon.Observations have primarily been done in the CO J = 2-1 and J = 3-2 lines using the KOSMA telescope. A field of 3.4 squared degrees has been mapped in the on-the-fly mode in these transitions. Longer integration spectra in the on-off mode have been obtained to study the emission at the position of V838 Mon. Selected positions in the field have also been observed in the CO J = 1-0 transition using the Delingha telescope.In the observed field we have identified many molecular clouds. They can be divided into two groups from the point of view of their observed radial velocities. One, having V(LSR) in the range 18-32 km/s, can be identified with the Perseus Galactic arm. The other one, having V(LSR) between 44-57 km/s, probably belongs to the Norma-Cygnus arm. The radial velocity of V838 Mon is within the second ...

  16. Chemical variations observed on Aeolis Mons in Gale Crater, Mars

    Science.gov (United States)

    Frydenvang, Jens; Gasda, Patrick J.; Thompson, Lucy; Hurowitz, Joel; Grotzinger, John P.; Blaney, Diana L.; Gellert, Ralf; Wiens, Roger; Vasavada, Ashwin R.; MSL Science Team

    2016-10-01

    The extraordinarily extensive exposure of hematite-, clay-, sulfate-bearing stratigraphic layers in the lower part of Aeolis Mons was the primary reason Gale Crater was selected as the landing site for the Mars Science Laboratory rover, Curiosity. 753 martian solar days (sols) after the Curiosity rover landed in Gale Crater in August 2012, and after driving more than 9 km, the Curiosity rover arrived at the first exposure of the Murray formation, the basal layer of Aeolis Mons. The Murray formation is a thinly laminated lacustrine mudstone showing stratification down to the millimeter scale. This supports the idea that the stratigraphic layers of Aeolis Mons are sedimentary, and likely deposited in a series of long-lived lakes extending into the early Hesperian time, as recently described by Grotzinger et al. (Science, vol. 350, 2015). The chemical variations observed throughout the Murray formation by the ChemCam and APXS instruments in the 600+ sols since first arriving at Aeolis Mons will be presented. While Murray remains thinly laminated throughout the 30+ vertical meters of stratigraphy explored, large chemical variations are observed. The most extreme variations arise from likely co-located detrital and diagenetic silica enrichments in Murray. Remarkably, an associated diagenetic silica enrichment is also observed in the unconformably overlying eolian sandstone of the Stimson formation in that location. The detrital enrichment provides evidence of how the source region chemistry varied as the sedimentary layers of Aeolis Mons were deposited. Conversely, the diagenetic enrichment observed across both the Murray and Stimson formations provides compelling evidence for the presence of subsurface fluids in Gale Crater, thousands to millions of years after the crater lakes disappeared. This evidence of liquid water greatly extends the timescale in which Gale Crater might have been habitable.

  17. An Item Analysis of Raven's Colored Progressive Matrices among Participants with Down Syndrome

    Science.gov (United States)

    Facon, Bruno; Nuchadee, Marie-Laure

    2010-01-01

    Standardized tests are widely used in intellectual disability research, either as dependent or control variables. Yet, it is not certain that their items give rise to the same performance in various groups under study. In the present work, 48 participants with Down syndrome were matched on their raw score on Raven's Colored Progressive Matrices…

  18. A Comparison between Element Salience versus Context as Item Difficulty Factors in Raven's Matrices

    Science.gov (United States)

    Perez-Salas, Claudia P.; Streiner, David L.; Roberts, Maxwell J.

    2012-01-01

    The nature of contextual facilitation effects for items derived from Raven's Progressive Matrices was investigated in two experiments. For these, the original matrices were modified, creating either abstract versions with high element salience, or versions which comprised realistic entities set in familiar contexts. In order to replicate and…

  19. Raven's Coloured Progressive Matrices as a Measure of Cognitive Functioning in Cerebral Palsy

    Science.gov (United States)

    Pueyo, R.; Junque, C.; Vendrell, P.; Narberhaus, A.; Segarra, D.

    2008-01-01

    Background: Cognitive dysfunction is frequent in Cerebral Palsy (CP). CP motor impairment and associated speech deficits often hinder cognitive assessment, with the result being that not all CP studies consider cognitive dysfunction. Raven's Coloured Progressive Matrices is a simple, rapid test which can be used in persons with severe motor…

  20. Raven: An On-Orbit Relative Navigation Demonstration Using International Space Station Visiting Vehicles

    Science.gov (United States)

    Strube, Matthew; Henry, Ross; Skeleton, Eugene; Eepoel, John Van; Gill, Nat; McKenna, Reed

    2015-01-01

    Since the last Hubble Servicing Mission five years ago, the Satellite Servicing Capabilities Office (SSCO) at the NASA Goddard Space Flight Center (GSFC) has been focusing on maturing the technologies necessary to robotically service orbiting legacy assets-spacecraft not necessarily designed for in-flight service. Raven, SSCO's next orbital experiment to the International Space Station (ISS), is a real-time autonomous non-cooperative relative navigation system that will mature the estimation algorithms required for rendezvous and proximity operations for a satellite-servicing mission. Raven will fly as a hosted payload as part of the Space Test Program's STP-H5 mission, which will be mounted on an external ExPRESS Logistics Carrier (ELC) and will image the many visiting vehicles arriving and departing from the ISS as targets for observation. Raven will host multiple sensors: a visible camera with a variable field of view lens, a long-wave infrared camera, and a short-wave flash lidar. This sensor suite can be pointed via a two-axis gimbal to provide a wide field of regard to track the visiting vehicles as they make their approach. Various real-time vision processing algorithms will produce range, bearing, and six degree of freedom pose measurements that will be processed in a relative navigation filter to produce an optimal relative state estimate. In this overview paper, we will cover top-level requirements, experimental concept of operations, system design, and the status of Raven integration and test activities.

  1. Element Salience as a Predictor of Item Difficulty for Raven's Progressive Matrices

    Science.gov (United States)

    Meo, Maria; Roberts, Maxwell J.; Marucci, Francesco S.

    2007-01-01

    Raven's Progressive Matrices is a frequently used intelligence test, and it has been suggested that the major determinant of difficulty for each item is its numbers of elements and rules, and its rule complexity. The current study investigated another potential source of difficulty--element salience--items are harder where their elements are…

  2. Item and Error Analysis on Raven's Coloured Progressive Matrices in Williams Syndrome

    Science.gov (United States)

    Van Herwegen, Jo; Farran, Emily; Annaz, Dagmara

    2011-01-01

    Raven's Coloured Progressive Matrices (RCPM) is a standardised test that is commonly used to obtain a non-verbal reasoning score for children. As the RCPM involves the matching of a target to a pattern it is also considered to be a visuo-spatial perception task. RCPM is therefore frequently used in studies in Williams Syndrome (WS), in order to…

  3. A Note on the Relationship Between Raven's Coloured Progressive Matrices Test and Operational Thought

    Science.gov (United States)

    Carlson, Jerry S.

    1973-01-01

    The results of this study support the notion that different parts of Raven's Coloured Progressive Matrices Test tap different processes. Sets A and Ab employ the rationale of the Inhelder-Piaget Test and rely on solution by graphic processes, whereas set B involves solution by opeational means. Total score results may be less appropriate than the…

  4. Preschool Children's Performance on the Raven's Coloured Progressive Matrices and the Peabody Picture Vocabulary Test

    Science.gov (United States)

    Garrity, Linda I.; Donoghue, James T.

    1976-01-01

    The Peabody Picture Vocabulary Test and the Raven's Coloured Progressive Matrices were given to two samples of preschool children to investigate differences between problem children and nonproblem children as well as sex differences. Some comparisons were significant. Tables are presented and results are discussed. (JKS)

  5. The WISC-III and Raven Coloured Progressive Matrices Test: A Pilot Study of Relationships.

    Science.gov (United States)

    Kluever, Raymond C.; And Others

    The relationship between scores on Raven's Coloured Progressive Matrices (CPM) scores and subtest scores and IQs from the Wechsler Intelligence Scale for Children-III (WISC-III) was studied for 28 children aged 6 to 11 years. Subjects had been referred to a university assessment center because they were believed to have exceptional learning…

  6. Raven's coloured progressive matrices: normative values on 305 adult normal controls.

    Science.gov (United States)

    Basso, A; Capitani, E; Laiacona, M

    1987-01-01

    The use of Raven's Coloured Progressive Matrices (PM 47) in experiments with brain-damaged patients is briefly reviewed. Because norms for adults are still not available, normative data were calculated on 305 normals; corrections for age and education and centile allocation of the scores are furnished.

  7. Raven's Coloured Progressive Matrices as a Measure of Cognitive Functioning in Cerebral Palsy

    Science.gov (United States)

    Pueyo, R.; Junque, C.; Vendrell, P.; Narberhaus, A.; Segarra, D.

    2008-01-01

    Background: Cognitive dysfunction is frequent in Cerebral Palsy (CP). CP motor impairment and associated speech deficits often hinder cognitive assessment, with the result being that not all CP studies consider cognitive dysfunction. Raven's Coloured Progressive Matrices is a simple, rapid test which can be used in persons with severe motor…

  8. A Comparison between Element Salience versus Context as Item Difficulty Factors in Raven's Matrices

    Science.gov (United States)

    Perez-Salas, Claudia P.; Streiner, David L.; Roberts, Maxwell J.

    2012-01-01

    The nature of contextual facilitation effects for items derived from Raven's Progressive Matrices was investigated in two experiments. For these, the original matrices were modified, creating either abstract versions with high element salience, or versions which comprised realistic entities set in familiar contexts. In order to replicate and…

  9. Analysis of the Raven CPM Subtest Scores for a Sample of Gifted Children.

    Science.gov (United States)

    Kluever, Raymond C.; Green, Kathy E.

    The inter-subject/intra-subject subtest patterns (profiles) of the same sample of gifted children were examined based on factors found in a previous study of the Raven Coloured Progressive Matrices Test (CPM) that investigated structural properties with specific application to a sample of gifted children. The sample consisted of 166 children (78…

  10. New Rule Use Drives the Relation between Working Memory Capacity and Raven's Advanced Progressive Matrices

    Science.gov (United States)

    Wiley, Jennifer; Jarosz, Andrew F.; Cushen, Patrick J.; Colflesh, Gregory J. H.

    2011-01-01

    The correlation between individual differences in working memory capacity and performance on the Raven's Advanced Progressive Matrices (RAPM) is well documented yet poorly understood. The present work proposes a new explanation: that the need to use a new combination of rules on RAPM problems drives the relation between performance and working…

  11. Solving and creating Raven Progressive Matrices: reasoning in well- and ill-defined problem spaces

    NARCIS (Netherlands)

    Jaarsveld, S.; Lachmann, T.; Hamel, R.; van Leeuwen, C.

    2010-01-01

    We studied the development of creative cognition in children ranging from nursery school to Grade 6 (4-12 yr old, N¼511), performing a problem generation task. The task involved inventing a novel item for a classical problem solving task they had completed beforehand: the Raven Progressive Matrices

  12. Survey of campylobacter, salmonella and mycoplasmas in house crows (Corvus splendens) in Malaysia.

    Science.gov (United States)

    Ganapathy, K; Saleha, A A; Jaganathan, M; Tan, C G; Chong, C T; Tang, S C; Ideris, A; Dare, C M; Bradbury, J M

    2007-05-05

    House crows (Corvus splendens) in Selangor, Malaysia were examined for the presence of Campylobacter species, Salmonella species, Mycoplasma gallisepticum and Mycoplasma synoviae by serology, culture and pcr. For the detection of Campylobacter and Salmonella species swabs were taken either from the intestine or cloaca. For the detection of mycoplasmas, swabs were taken either from the choanal cleft or trachea for culture and pcr and serum samples were tested by the rapid serum agglutination (rsa) and monoclonal antibody-blocking elisa (mbelisa) for antibodies to M gallisepticum and M synoviae. For campylobacter, 25.3 per cent of the crows were positive by culture, and the species identified were Campylobacter jejuni and Campylobacter coli. No Salmonella species were isolated. Four of 24 swabs were positive for M gallisepticum dna but none gave positive results for M synoviae dna. No M gallisepticum or M synoviae antibodies were detected by rsa but 60 per cent of the sera gave positive reactions for M gallisepticum and 13 per cent gave positive reactions for M synoviae by mbelisa.

  13. Behavioural Type Affects Space Use in a Wild Population of Crows (Corvus corone).

    Science.gov (United States)

    Deventer, Sarah A; Uhl, Florian; Bugnyar, Thomas; Miller, Rachael; Fitch, W Tecumseh; Schiestl, Martina; Ringler, Max; Schwab, Christine

    2016-11-01

    While personality-dependent dispersal is well studied, local space use has received surprisingly little attention in this context, despite the multiple consequences on survival and fitness. Regarding the coping style of individuals, recent studies on personality-dependent space use within a habitat indicate that 'proactive' individuals are wider ranging than 'reactive' ones. However, such studies are still scarce and cover limited taxonomic diversity, and thus, more research is needed to explore whether this pattern generalises across species. We examined the link between coping style and space use in a population of crows (Corvus corone) freely inhabiting the urban zoo of Vienna, Austria. We used a binary docility rating (struggle during handling vs. no struggle) and a tonic immobility test to quantify individual coping style. Individual space use was quantified as the number of different sites at which each crow was observed, and we controlled for different number of sightings per individual by creating a space use index. Only the binary docility rating showed repeatability over time, and significantly predicted space use. In contrast to previous studies, we found that reactive crows (no struggle during handling) showed wider ranging space use within the study site than proactive individuals (who struggled during handling). The discrepancy from previous results suggests that the relationship between behavioural type and space use may vary between species, potentially reflecting differences in socioecology.

  14. Distribution of retinal cone photoreceptor oil droplets, and identification of associated carotenoids in crow (Corvus macrorhynchos).

    Science.gov (United States)

    Rahman, Mohammad Lutfur; Yoshida, Kazuyuki; Maeda, Isamu; Tanaka, Hideuki; Sugita, Shoei

    2010-06-01

    The topography of cone oil droplets and their carotenoids were investigated in the retina of jungle crow (Corvus macrorhynchos). Fresh retina was sampled for the study of retinal cone oil droplets, and extracted retinal carotenoids were saponified using methods adapted from a recent study, then identified with reverse-phase high-performance liquid chromatography (HPLC). To assess the effects of saponification conditions on carotenoid recovery from crow retina, we varied base concentration and total time of saponification across a wide range of conditions, and again used HPLC to compare carotenoid concentrations. Based on colors, at least four types of oil droplets were recognized, i.e., red, orange, green, and translucent, across the retina. With an average of 91,202 /mm(2), density gradually declines in an eccentric manner from optic disc. In retina, the density and size of droplets are inversely related. In the peripheral zone, oil droplets were significantly larger than those of the central area. The proportion of orange oil droplets (33%) was higher in the central area, whereas green was predominant in other areas. Three types of carotenoid (astaxanthin, galloxanthin and lutein), together with one unknown carotenoid, were recovered from the crow retina; astaxanthin was the dominant carotenoid among them. The recovery of carotenoids was affected by saponification conditions. Astaxanthin was well recovered in weak alkali (0.06 M KOH), in contrast, xanthophyllic carotenoids were best recovered in strong alkali (0.6 M KOH) after 12 h of saponification at freeze temperature.

  15. Blood parasites in hooded crows (Corvus corone cornix) in Northwest Italy.

    Science.gov (United States)

    Scaglione, Frine Eleonora; Cannizzo, Francesca Tiziana; Pregel, Paola; Perez Rodriguez, Anton David; Bollo, Enrico

    2016-09-30

    Haemoparasites and their effects on hooded crows (Corvus corone cornix) are poorly studied. The aims are to evaluate the prevalence of Haemoproteus spp./Plasmodium spp. or Leucocytozoon spp., to correlate this with gross and histopathological findings, and to investigate the association among infection and geographical origin, age, gender, parasite distribution and prevalence among organs. Hooded crows (n = 47) were collected within a regional culling programme from 3 districts in the province of Turin (Italy) and subjected to necropsy. Histological and molecular analyses were carried out on some tissues. Leucocytozoon spp. was detected in 46 crows (97.9%) by polymerase chain reaction (PCR), whereas 28 birds (59.6%) were found to be positive for Haemoproteus spp./Plasmodium spp. The distribution of parasites in several organs varied significantly, showing that Leucocytozoon spp. is ubiquitous in organs in contrast with Haemoproteus spp./Plasmodium spp., which have a specific predilection for spleen and lungs. The prevalence of Haemoproteus spp./Plasmodium spp. also differed significantly among the crows captured in the areas of the study. The high prevalence of haemoparasites emphasizes the success of ornithophilic vectors and the susceptibility of this species to infection. Differences in prevalence among the sites are probably due to orographic features of the areas, variations in vector species and density, or to crow population size or structure. In spite of the high infection rate, no gross and histological lesions were found. This finding further suggests an evolutionary adaptation between crows and avian blood parasites.

  16. Ultrastructural and histochemical properties of the olfactory system in the japanese jungle crow, Corvus macrorhynchos.

    Science.gov (United States)

    Kondoh, Daisuke; Nashimoto, Mai; Kanayama, Shunsaku; Nakamuta, Nobuaki; Taniguchi, Kazuyuki

    2011-08-01

    Although it has been commonly believed that birds are more dependent on the vision and audition than the olfaction, recent studies indicate that the olfaction of birds is related to the reproductive, homing, and predatory behaviors. In an attempt to reveal the dependence on the olfactory system in crows, we examined the olfactory system of the Japanese jungle crow (Corvus macrorhynchos) by histological, ultrastructural, and lectin histochemical methods. The olfactory epithelium (OE) of the crow occupied remarkably a small area of the nasal cavity (NC) and had the histological and ultrastructural features like other birds. The olfactory bulb (OB) of the crow was remarkably small and did not possess the olfactory ventricle. The left and right halves of the OB were fused in many cases. In the lectin histochemistry, soybean agglutinin (SBA) and Vicia villosa agglutinin (VVA) stained a small number of the receptor cells (RCs) in the OE and the olfactory nerve layer (ONL) and glomerular layer (GL) on the dorsocaudal region of the OB. Phaseolus vulgaris agglutinin-E (PHA-E) stained several RCs in the OE and the ONL and GL on the ventral region of the OB. These results suggest that 1) the crow has less-developed olfactory system than other birds, and 2) the dedicated olfactory receptor cells project their axons to the specific regions of the OB in the crow.

  17. Song control nuclei in male and female large-billed crows (Corvus macrorhynchos).

    Science.gov (United States)

    Wang, Rui; Sun, YingYu; Zhang, XueBo; Zeng, ShaoJu; Xie, WenQing; Yu, YueQiang; Zhang, XinWen; Zuo, MingXue

    2009-11-01

    We show that the learned vocalizations of male and female large-billed crows (Corvus macrorhynchos) are similar and that their functions and physical features show significant differences from those of other oscine species. We investigate whether the song control nuclei of crows show any sexual differences in size, reflecting differences in their singing behavior, and whether these nuclei are different from those of other songbirds in terms of neural connectivity size and relative to the forebrain. Our Nissl staining results reveal that 1) of the four song nuclei examined (HVC; the robust nucleus of the arcopallium [RA]; Area X; and the dorsolateral medial nucleus [DLM]), HVC, RA, and Area X volumes are significantly larger in males than in females, but DLM volume and body and brain weights show no significant gender differences; and 2) the sizes of song nuclei relative to the forebrain are within the range of other oscines. By injecting a neural tract tracer (DiI) into various song nuclei in brain slices, we found that, as in other songbirds, HVC projects to RA and Area X, while Area X projects to the lateral magnocellular nucleus of the anterior nidopallium (IMAN) and DLM, DLM to IMAN, and IMAN to RA. Our results Indicate that, although the crow has songs very different from those of other oscine species, Its song nuclei and the connections between them are not obviously different.

  18. Wake analysis of aerodynamic components for the glide envelope of a jackdaw (Corvus monedula).

    Science.gov (United States)

    KleinHeerenbrink, Marco; Warfvinge, Kajsa; Hedenström, Anders

    2016-05-15

    Gliding flight is a relatively inexpensive mode of flight used by many larger bird species, where potential energy is used to cover the cost of aerodynamic drag. Birds have great flexibility in their flight configuration, allowing them to control their flight speed and glide angle. However, relatively little is known about how this flexibility affects aerodynamic drag. We measured the wake of a jackdaw (Corvus monedula) gliding in a wind tunnel, and computed the components of aerodynamic drag from the wake. We found that induced drag was mainly affected by wingspan, but also that the use of the tail has a negative influence on span efficiency. Contrary to previous work, we found no support for the separated primaries being used in controlling the induced drag. Profile drag was of similar magnitude to that reported in other studies, and our results suggest that profile drag is affected by variation in wing shape. For a folded tail, the body drag coefficient had a value of 0.2, rising to above 0.4 with the tail fully spread, which we conclude is due to tail profile drag.

  19. Differentiation and Gene Flow among European Populations of Leishmania infantum MON-1

    Science.gov (United States)

    Kuhls, Katrin; Chicharro, Carmen; Cañavate, Carmen; Cortes, Sofia; Campino, Lenea; Haralambous, Christos; Soteriadou, Ketty; Pratlong, Francine; Dedet, Jean-Pierre; Mauricio, Isabel; Miles, Michael; Schaar, Matthias; Ochsenreither, Sebastian; Radtke, Oliver A.; Schönian, Gabriele

    2008-01-01

    Background Leishmania infantum is the causative agent of visceral and cutaneous leishmaniasis in the Mediterranean region, South America, and China. MON-1 L. infantum is the predominating zymodeme in all endemic regions, both in humans and dogs, the reservoir host. In order to answer important epidemiological questions it is essential to discriminate strains of MON-1. Methodology/Principal Findings We have used a set of 14 microsatellite markers to analyse 141 strains of L. infantum mainly from Spain, Portugal, and Greece of which 107 strains were typed by MLEE as MON-1. The highly variable microsatellites have the potential to discriminate MON-1 strains from other L. infantum zymodemes and even within MON-1 strains. Model- and distance-based analysis detected a considerable amount of structure within European L. infantum. Two major monophyletic groups—MON-1 and non-MON-1—could be distinguished, with non-MON-1 being more polymorphic. Strains of MON-98, 77, and 108 were always part of the MON-1 group. Among MON-1, three geographically determined and genetically differentiated populations could be identified: (1) Greece; (2) Spain islands–Majorca/Ibiza; (3) mainland Portugal/Spain. All four populations showed a predominantly clonal structure; however, there are indications of occasional recombination events and gene flow even between MON-1 and non-MON-1. Sand fly vectors seem to play an important role in sustaining genetic diversity. No correlation was observed between Leishmania genotypes, host specificity, and clinical manifestation. In the case of relapse/re-infection, only re-infections by a strain with a different MLMT profile can be unequivocally identified, since not all strains have individual MLMT profiles. Conclusion In the present study for the first time several key epidemiological questions could be addressed for the MON-1 zymodeme, because of the high discriminatory power of microsatellite markers, thus creating a basis for further epidemiological

  20. Differentiation and gene flow among European populations of Leishmania infantum MON-1.

    Science.gov (United States)

    Kuhls, Katrin; Chicharro, Carmen; Cañavate, Carmen; Cortes, Sofia; Campino, Lenea; Haralambous, Christos; Soteriadou, Ketty; Pratlong, Francine; Dedet, Jean-Pierre; Mauricio, Isabel; Miles, Michael; Schaar, Matthias; Ochsenreither, Sebastian; Radtke, Oliver A; Schönian, Gabriele

    2008-07-09

    Leishmania infantum is the causative agent of visceral and cutaneous leishmaniasis in the Mediterranean region, South America, and China. MON-1 L. infantum is the predominating zymodeme in all endemic regions, both in humans and dogs, the reservoir host. In order to answer important epidemiological questions it is essential to discriminate strains of MON-1. We have used a set of 14 microsatellite markers to analyse 141 strains of L. infantum mainly from Spain, Portugal, and Greece of which 107 strains were typed by MLEE as MON-1. The highly variable microsatellites have the potential to discriminate MON-1 strains from other L. infantum zymodemes and even within MON-1 strains. Model- and distance-based analysis detected a considerable amount of structure within European L. infantum. Two major monophyletic groups-MON-1 and non-MON-1-could be distinguished, with non-MON-1 being more polymorphic. Strains of MON-98, 77, and 108 were always part of the MON-1 group. Among MON-1, three geographically determined and genetically differentiated populations could be identified: (1) Greece; (2) Spain islands-Majorca/Ibiza; (3) mainland Portugal/Spain. All four populations showed a predominantly clonal structure; however, there are indications of occasional recombination events and gene flow even between MON-1 and non-MON-1. Sand fly vectors seem to play an important role in sustaining genetic diversity. No correlation was observed between Leishmania genotypes, host specificity, and clinical manifestation. In the case of relapse/re-infection, only re-infections by a strain with a different MLMT profile can be unequivocally identified, since not all strains have individual MLMT profiles. In the present study for the first time several key epidemiological questions could be addressed for the MON-1 zymodeme, because of the high discriminatory power of microsatellite markers, thus creating a basis for further epidemiological investigations.

  1. Differentiation and gene flow among European populations of Leishmania infantum MON-1.

    Directory of Open Access Journals (Sweden)

    Katrin Kuhls

    Full Text Available BACKGROUND: Leishmania infantum is the causative agent of visceral and cutaneous leishmaniasis in the Mediterranean region, South America, and China. MON-1 L. infantum is the predominating zymodeme in all endemic regions, both in humans and dogs, the reservoir host. In order to answer important epidemiological questions it is essential to discriminate strains of MON-1. METHODOLOGY/PRINCIPAL FINDINGS: We have used a set of 14 microsatellite markers to analyse 141 strains of L. infantum mainly from Spain, Portugal, and Greece of which 107 strains were typed by MLEE as MON-1. The highly variable microsatellites have the potential to discriminate MON-1 strains from other L. infantum zymodemes and even within MON-1 strains. Model- and distance-based analysis detected a considerable amount of structure within European L. infantum. Two major monophyletic groups-MON-1 and non-MON-1-could be distinguished, with non-MON-1 being more polymorphic. Strains of MON-98, 77, and 108 were always part of the MON-1 group. Among MON-1, three geographically determined and genetically differentiated populations could be identified: (1 Greece; (2 Spain islands-Majorca/Ibiza; (3 mainland Portugal/Spain. All four populations showed a predominantly clonal structure; however, there are indications of occasional recombination events and gene flow even between MON-1 and non-MON-1. Sand fly vectors seem to play an important role in sustaining genetic diversity. No correlation was observed between Leishmania genotypes, host specificity, and clinical manifestation. In the case of relapse/re-infection, only re-infections by a strain with a different MLMT profile can be unequivocally identified, since not all strains have individual MLMT profiles. CONCLUSION: In the present study for the first time several key epidemiological questions could be addressed for the MON-1 zymodeme, because of the high discriminatory power of microsatellite markers, thus creating a basis for further

  2. Population trends of Mariana Crow Corvus kubaryi on Rota, Commonwealth of the Northern Mariana Islands

    Science.gov (United States)

    Plentovich, S.; Morton, J.M.; Bart, J.; Camp, R.J.; Lusk, M.; Johnson, N.; VanderWerf, E.

    2005-01-01

    Endemic to the islands of Guam and Rota in the Mariana Islands, Mariana Crow Corvus kubaryi is the only corvid in Micronesia. Currently, it survives on Guam only because of translocation of individuals from Rota (1999-2003). Island-wide surveys in 1982 and 1995 on Rota yielded population estimates of 1,348 and 592 respectively, indicating a 56% decrease in only 13 years. A sharp decline in the only viable Mariana Crow population has serious implications for conservation efforts on Rota and for efforts to re-establish the Guam population. However, the validity of the apparent decline has been debated among scientists and government management agencies. We augmented the 1982 and 1995 island-wide VCP surveys with (1) an additional island-wide survey conducted in 1998, and (2) roadside surveys conducted during 1991-1993 and again during 1999-2002. We also outline historical changes in Rota's limestone forest based on aerial photographs and historical information. Data from all surveys indicate a significant decline in the Mariana Crow population. Declines occurred especially along the north-central coast and in the area east of the airport known as As Dudo in the 1990s, but the data indicate an island-wide decline over the entire span of the surveys. introduced predators, human persecution, and habitat loss and degradation by anthropogenic and natural causes have all contributed to the decline. Long-term preservation of this species will require effective brown treesnake Boiga irregularis control, habitat protection, continued monitoring and research, and increased public education and awareness of Rota's rare and endangered species. ?? BirdLife International 2005.

  3. Monólogos: nuestra pequeña esencia

    Directory of Open Access Journals (Sweden)

    Maria del Carmen Chenoll Monzó

    2010-01-01

    Full Text Available La siguiente experiencia práctica trata, como bien dice el título, sobre los monólogos de humor que tan de moda se han puesto últimamente.Muchas veces, cuando nos encontramos ante una clase de extranjeros que quieren estudiar español, se nos plantea el dilema de cómo separar las clases de cultura con las de gramática. ¿Y por qué separarlas? Los monólogos nos permiten combinar varios aspectos, como mostrarles a los alumnos nuestra cultura más de cerca y que ellos nos muestren y comenten la suya (fomentamos de esta manera una conversación espontánea en clase y de la que todos, hasta los más tímidos, suelen participar.Además, obviamente, existe un claro segundo sentido e ironía a la que poco a poco se acostumbran (y que es uno de los aspectos más difíciles para tratar con los alumnos de E/LE y por supuesto, con una acertada elección del monólogo, también podemos clarificar y profundizar en ciertos aspectos gramaticales que nos interesen.

  4. Evolutionary status of the active star PZ Mon

    CERN Document Server

    Pakhomov, Yu V; Bondar, N I; Gorynya, N A; Semenko, E A

    2014-01-01

    We use original spectra and available photometric data to recover parameters of the stellar atmosphere of PZ Mon, formerly referred as an active red dwarf. The derived effective temperature Teff=4700K and gravity lgg=2.8 suggest that PZ Mon is a K2III giant. Stellar atmosphere parameters (Teff and lgg) alongside with the evolutionary tracks are used to estimate the stellar mass of ~1.5Mo and the radius of ~7.7Ro. The angular radius derived by the infrared flux method when combined with the linear radius suggests the distance of 250+/-70 pc, a factor 2.5 smaller than that suggested by the Hipparcos parallax. The red giant status of PZ Mon is confirmed by the carbon and nitrogen abundance. The spectrum reveals pronounced HeI 5876 A absorption and Halpha emission indicating the robust chromosphere. The IUE spectrum is found to contain transition layer emission line of CIV 1550 A. The CIV and X-ray luminosities turn out typical of RS CVn stars. The extended set of available photometric data confirms the period of...

  5. Matrizes progressivas coloridas de Raven - escala especial: normas para Porto Alegre, RS The Raven's coloured progressive matrices: norms for Porto Alegre, RS

    OpenAIRE

    Denise Ruschel Bandeira; Irai Cristina Boccato Alves; Angélica Elisa Giacomel; Luciano Lorenzatto

    2004-01-01

    O Teste das Matrizes Progressivas Coloridas de Raven destina-se à avaliação do desenvolvimento intelectual de crianças de 5 a 11 anos de idade. O presente trabalho teve como objetivo estabelecer normas para as crianças de Porto Alegre - RS. A amostra foi composta por 779 crianças matriculadas em escolas estaduais, de 4 anos e 9 meses a 11 anos e 9 meses. Foi constatado aumento progressivo nas médias de pontos com o aumento da idade e não foram encontradas diferenças entre meninos e meninas. N...

  6. V588 Mon and V589 Mon, Two Delta Scuti Stars in the Direction of NGC 2264

    Directory of Open Access Journals (Sweden)

    J. H. Peña

    2002-01-01

    Full Text Available Se llevó a cabo fotometría fotoeléctrica tanto absoluta como diferencial de las estrellas variables de periodo corto V588 Mon (W2 y V589 Mon (W20 en la dirección del cúmulo abierto NGC2264. De la fotometría fotoeléctrica uvbyB, se estimaron las distancias y parámetros físicos de cada estrella y se presentan. La fotometría diferencial nos permitió realizar el análisis de Fourier de los datos. Las frecuencias determinadas para cada estrella son: para W2, 7.1865 c/d y para W20, 7.4385 c/d. Se discute la cuestión de su pertenencia al cúmulo.

  7. RAVEN AS A TOOL FOR DYNAMIC PROBABILISTIC RISK ASSESSMENT: SOFTWARE OVERVIEW

    Energy Technology Data Exchange (ETDEWEB)

    Alfonsi Andrea; Mandelli Diego; Rabiti Cristian; Joshua Cogliati; Robert Kinoshita

    2013-05-01

    RAVEN is a software tool under development at the Idaho National Laboratory (INL) that acts as the control logic driver and post-processing tool for the newly developed Thermo-Hydraylic code RELAP- 7. The scope of this paper is to show the software structure of RAVEN and its utilization in connection with RELAP-7. A short overview of the mathematical framework behind the code is presented along with its main capabilities such as on-line controlling/monitoring and Monte-Carlo sampling. A demo of a Station Black Out PRA analysis of a simplified Pressurized Water Reactor (PWR) model is shown in order to demonstrate the Monte-Carlo and clustering capabilities.

  8. The Raven's progressive matrices: change and stability over culture and time.

    Science.gov (United States)

    Raven, J

    2000-08-01

    Data relating to the stability and variation in the norms for the Raven's Progressive Matrices Test (a well-validated measure of basic cognitive functioning) for different cultural, ethnic, and socioeconomic groups on a worldwide and within-country basis are first summarized. Subsequent sections deal with variation over time. A possible explanation for the variation in norms over time and between ethnic groups within countries is offered.

  9. What you see is what you get? Exclusion performances in ravens and keas.

    Directory of Open Access Journals (Sweden)

    Christian Schloegl

    Full Text Available Among birds, corvids and parrots are prime candidates for advanced cognitive abilities. Still, hardly anything is known about cognitive similarities and dissimilarities between them. Recently, exclusion has gained increasing interest in comparative cognition. To select the correct option in an exclusion task, one option has to be rejected (or excluded and the correct option may be inferred, which raises the possibility that causal understanding is involved. However, little is yet known about its evolutionary history, as only few species, and mainly mammals, have been studied.We tested ravens and keas in a choice task requiring the search for food in two differently shaped tubes. We provided the birds with partial information about the content of one of the two tubes and asked whether they could use this information to infer the location of the hidden food and adjust their searching behaviour accordingly. Additionally, this setup allowed us to investigate whether the birds would appreciate the impact of the shape of the tubes on the visibility of food. The keas chose the baited tube more often than the ravens. However, the ravens applied the more efficient strategy, choosing by exclusion more frequently than the keas. An additional experiment confirmed this, indicating that ravens and keas either differ in their cognitive skills or that they apply them differently.To our knowledge, this is the first study to demonstrate that corvids and parrots may perform differently in cognitive tasks, highlighting the potential impact of different selection pressures on the cognitive evolution of these large-brained birds.

  10. Psychometric Study of the Raven Progressive Matrices Tests in elementary students from Lima

    OpenAIRE

    Delgado Vásquez, Ana; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Escurra Mayaute, Luis M.; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Bulnes Bedón, Mario; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú; Quesada Murillo, María Rosario; Facultad de Psicología, Universidad Nacional Mayor de San Marcos, Lima, Perú

    2014-01-01

    It was made a psychometric study of Raven Coloured Progressive Matrices Test, which is a non verbal instrument that evaluates abilities related to make comparisons, thinking for analogy and spatial perceptions organization. It was designed mainly as a measure of factor "g" of Spearman or general intelligence, composed by two abilities, named educational and reproductive. The participants were 2496 students obtained at random considering all school districts (USE) of the city of Lima, Peru. Th...

  11. Multiplexed microsatellite loci in American crow (Corvus brachyrhynchos): a severely affected natural host of West Nile virus.

    Science.gov (United States)

    Verdugo, Claudio; Clark, Ann Marie; Prakoso, Dhani; Kramer, Laura D; Long, Maureen T

    2012-12-01

    Recent advances in high throughput molecular techniques have allowed the development of cost- and time-effective libraries of molecular markers, such as microsatellites, for population genetic studies in non-model species. The American crow, Corvus brachyrhynchos, is recognized to be one of the species that has been most negatively affected by the emergence of West Nile virus (WNV) in North America in 1999. Genetic monitoring of the process of a declining population after the introduction of an infectious disease can provide insights into the demographic and evolutionary impact of a pathogen in a natural host population over time. In this study, shotgun pyrosequencing and validation of previously published cross-species markers were the approaches used to identify and develop a set of 32 polymorphic loci for the C. brachyrhynchos. Since the American crow is morphologically similar to the sympatric species Fish crow (Corvus ossifragus), we also designed a real-time PCR protocol to rapidly differentiate these two species using a set of primers and probes that can discriminate a section of the COI gene at the mitochondrial DNA. These new markers together with a faster method for species verification will allow further detailed studies to characterize and compare genetic diversity of historic and contemporary C. brachyrhynchos populations. Copyright © 2012 Elsevier B.V. All rights reserved.

  12. Socially Driven Consistent Behavioural Differences during Development in Common Ravens and Carrion Crows.

    Science.gov (United States)

    Miller, Rachael; Laskowski, Kate L; Schiestl, Martina; Bugnyar, Thomas; Schwab, Christine

    2016-01-01

    Consistent individual differences in behaviour, or 'personality', are likely to be influenced by development, social context, and species ecology, though few comparative, longitudinal studies exist. Here, we investigated the role of development and social context on personality variation in two identically reared, social corvids: common ravens and carrion crows. We repeatedly presented subjects with a variety of novel food and objects, while alone and in a primarily sibling subgroup, from fledging to sub-adulthood. We predicted that consistent individual differences would emerge later in development, and that conspecific presence would facilitate behavioural similarities. In contrast to our predictions, we found that individuals of both species were highly inconsistent in their behavioural responses throughout the development period. In line with our predictions, though in the ravens only, conspecific presence promoted behavioural similarities as individuals were strongly shaped by their subgroup, and it is likely that these effects were driven by social context rather than relatedness. We discuss these findings in relation to developmental steps and the role of social relations in these species. Overall, our findings highlight that these two species are highly adaptable in their behaviour, and the ravens in particular are strongly influenced by their social environment, which may facilitate cooperation and social learning.

  13. Venus - False Color Perspective of Sif and Gula Mons

    Science.gov (United States)

    1991-01-01

    A portion of western Eistla Regio is shown in this three dimensional, computer-generated view of the surface of Venus. The viewpoint is at an elevation of 1.2 kilometers (0.75 mile) at a location 700 kilometers (435 miles) southeast of Gula Mons, the volcano on the right horizon. Gula Mons reaches 3 kilometers (1.8 miles) high and is located around 22 degrees north latitude and 359 degrees east longitude. Sif Mons, the volcano on the left horizon, has a diameter of 300 kilometers (186 miles) and a height of 2 kilometers (1.2 miles). Magellan imaging and altimetry data are combined to develop a three-dimensional computer view of the planet's surface. Simulated color based on color images from the Soviet Venera 13 and 14 spacecraft is added to enhance small-scale structure. This image was produced at JPL's Multimission Image Processing Laboratory by Eric De Jong, Jeff Hall and Myche McAuley. Magellan is a NASA spacecraft mission to map the surface of Venus with imaging radar. The basic scientific instrument is a synthetic aperture radar, or SAR, which can look through the thick clouds perpetually shielding the surface of Venus. Magellan is in orbit around Venus which completes one turn around its axis in 243 Earth days. That period of time, one Venus day, is the length of a Magellan mapping cycle. The spacecraft completed its first mapping cycle and primary mission on May 15, 1991, and immediately began its second cycle. During the first cycle, Magellan mapped more than 80 percent of the planet's surface and the current and subsequent cycles of equal duration will provide complete mapping of Venus. Magellan was launched May 4, 1989, aboard the space shuttle Atlantis and went into orbit around Venus August 10, 1990.

  14. Probability of Synanthropic Corvid Presence in the Western United States

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Model of habitat utilization by synanthropic avian predators: common ravens (Corvus corax), American crows (Corvus brachyrhynchos), and black-billed magpies (Pica...

  15. Entrevista a Santiago Álvarez de Mon

    Directory of Open Access Journals (Sweden)

    Sergio López

    2006-09-01

    Full Text Available Santiago Álvarez de Mon es un profesor de obligada referencia académica y profesional en el ámbito de los valores humanos en la alta dirección empresarial. Doctor en sociología y ciencias políticas por la Universidad de Salamanca (España, es profesor en el Instituto de Estudios Superiores de la Empresa de la Universidad de Navarra (IESE, actualmente considerada como una de las diez escuelas de negocios más prestigiosas del mundo. Álvarez de Mon es autor de varios artículos y libros sobre el liderazgo empresarial, entre los que destacan “El mito del líder” o “Desde la adversidad: liderazgo, cuestión de carácter”, basado en las historias de vida e investigación sobre destacados personajes como Nelson Mandela, Hellen Keller, José Carreras o Lance Armstrong, entre otros. Ha trabajado como directivo en la banca española, así como en el sector de grandes cadenas de distribución, y actualmente combina su labor docente con el asesoramiento a varias compañías en materias de liderazgo y trabajo en equipo.

  16. Deuteration around the ultracompact HII region Mon R2

    CERN Document Server

    Treviño-Morales, S P; Fuente, A; Kramer, C; Roueff, E; González-García, M; Cernicharo, J; Gerin, M; Goicoechea, J R; Pety, J; Berné, O; Ossenkopf, V; Ginard, D; García-Burillo, S; Rizzo, J R; Viti, S

    2014-01-01

    The massive star-forming region Mon R2 hosts the closest ultra-compact HII region that can be spatially resolved with current single-dish telescopes. We used the IRAM-30m telescope to carry out an unbiased spectral survey toward two important positions (namely IF and MP2), in order to studying the chemistry of deuterated molecules toward Mon R2. We found a rich chemistry of deuterated species at both positions, with detections of C2D, DCN, DNC, DCO+, D2CO, HDCO, NH2D, and N2D+ and their corresponding hydrogenated species and isotopologs. Our high spectral resolution observations allowed us to resolve three velocity components: the component at 10 km/s is detected at both positions and seems associated with the layer most exposed to the UV radiation from IRS 1; the component at 12 km/s is found toward the IF position and seems related to the molecular gas; finally, a component at 8.5 km/s is only detected toward the MP2 position, most likely related to a low-UV irradiated PDR. We derived the column density of ...

  17. The ballistic performance of the bombard Mons Meg

    Directory of Open Access Journals (Sweden)

    Ian Lewtas

    2016-04-01

    Full Text Available The bombard Mons Meg, located in Edinburgh Castle, with a diameter of 19 inches (48 cm, was one of the largest calibre cannons ever built. Constructed in 1449 and presented to King James II of Scotland in 1454, Mons Meg was used in both military and ceremonial roles in Scotland until its barrel burst in 1680. This paper examines the history, internal, external and terminal ballistics of the cannon and its shot. The likely muzzle velocity was estimated by varying the propellant type and the cannon profile was investigated to identify weak spots in the design that may have led to its failure. Using the muzzle velocity calculated from the internal ballistics, simulations were performed with granite and sandstone shot for varying launch angle and ground temperature. The likely trajectory and range of the cannonballs are described. The internal and external ballistics informed the initial conditions of the terminal ballistic impact scenarios. The performance of the cannonball against both period and modern targets, in the form of a pseudo-castle wall and a monolithic concrete target, respectively, were simulated and are presented and discussed.

  18. The ballistic performance of the bombard Mons Meg

    Institute of Scientific and Technical Information of China (English)

    Ian LEWTAS; Rachael MCALISTER; Adam WALLIS; Clive WOODLEY; Ian CULLIS

    2016-01-01

    The bombard Mons Meg, located in Edinburgh Castle, with a diameter of 19 inches (48 cm), was one of the largest calibre cannons ever built. Constructed in 1449 and presented to King James II of Scotland in 1454, Mons Meg was used in both military and ceremonial roles in Scotland until its barrel burst in 1680. This paper examines the history, internal, external and terminal ballistics of the cannon and its shot. The likely muzzle velocity was estimated by varying the propellant type and the cannon profile was investigated to identify weak spots in the design that may have led to its failure. Using the muzzle velocity calculated from the internal ballistics, simulations were performed with granite and sandstone shot for varying launch angle and ground temperature. The likely trajectory and range of the cannonballs are described. The internal and external ballistics informed the initial conditions of the terminal ballistic impact scenarios. The performance of the cannonball against both period and modern targets, in the form of a pseudo-castle wall and a monolithic concrete target, respectively, were simulated and are presented and discussed.

  19. SiMon: Simulation Monitor for Computational Astrophysics

    Science.gov (United States)

    Qian, Penny Xuran; Cai, Maxwell Xu; Portegies Zwart, Simon; Zhu, Ming

    2017-09-01

    Scientific discovery via numerical simulations is important in modern astrophysics. This relatively new branch of astrophysics has become possible due to the development of reliable numerical algorithms and the high performance of modern computing technologies. These enable the analysis of large collections of observational data and the acquisition of new data via simulations at unprecedented accuracy and resolution. Ideally, simulations run until they reach some pre-determined termination condition, but often other factors cause extensive numerical approaches to break down at an earlier stage. In those cases, processes tend to be interrupted due to unexpected events in the software or the hardware. In those cases, the scientist handles the interrupt manually, which is time-consuming and prone to errors. We present the Simulation Monitor (SiMon) to automatize the farming of large and extensive simulation processes. Our method is light-weight, it fully automates the entire workflow management, operates concurrently across multiple platforms and can be installed in user space. Inspired by the process of crop farming, we perceive each simulation as a crop in the field and running simulation becomes analogous to growing crops. With the development of SiMon we relax the technical aspects of simulation management. The initial package was developed for extensive parameter searchers in numerical simulations, but it turns out to work equally well for automating the computational processing and reduction of observational data reduction.

  20. Mars - Stratigraphy and gravimetry of Olympus Mons and its aureole

    Science.gov (United States)

    Hiller, K. H.; Neukum, G. P. O.; Janle, P.; Guest, J. E.; Lopes, R. M. C.

    1982-01-01

    The relative ages of the major geologic units on and around Olympus Mons are considered, together with an interpretation of the gravity anomaly found for this area. The crater data for this investigation have been acquired and interpreted according to the method outlined by Neukum and Hiller (1981). After careful geological mapping, craters clearly identified as impacts are measured and counted. Crater frequency values per sq km for craters greater than or equal to 1 km ('crater retention ages') are read from the individual counts by fitting the Martian cumulative crater production size-frequency distribution to the individual counts. In addition to age dating, the problem of the origin and nature of the aureole materials using gravity data is addressed. This is done by determining whether the line-of-sight gravity extending from Olympus Mons to the northwestern part of the aureole can be explained by the aureole masses alone or whether additional high-density intrusive masses must be assumed in the aureola area.

  1. V838 Mon, V4332 Sgr, ... and Relatives in our Galaxy?

    Science.gov (United States)

    Kimeswenger, S.

    2007-04-01

    Now, 4 years after the outburst, we still are puzzled about the nature and future of the mysterious eruption of V838 Mon. Several discussions about relatives in our galaxy can be found in the literature. I try to summarize the main pros and cons for these objects and the galactic position of V838 Mon.

  2. Bistand til risikovurdering (evt. ændringer af tidligere risikovurdering). Zea mays (MON863; MON863x810). Supplerende materiale til ansøgningen. Modtaget 07-09-2004, deadline 19-09-2004, svar 17-09-2004

    DEFF Research Database (Denmark)

    Kjellsson, Gøsta; Strandberg, Morten Tune

    2012-01-01

    "DMU har modtaget og vurderet de supplerende oplysninger (mail fra Skov- og Naturstyrelsen d. 07-09-2004) til ansøgningen om tilladelse til markedsføring af genetisk modificeret majs C/DE/02/09 (MON863 og MON863 x MON810). Vi har gennemgået oplysningerne i det tilsendte materiale for at se om de ...

  3. Elements in whole blood of Northwestern Crows (Corvus caurinus) in Alaska: No evidence for an association with beak deformities

    Science.gov (United States)

    Van Hemert, Caroline R.; Handel, Colleen M.

    2016-01-01

    A recent outbreak of beak deformities among resident birds in Alaska has raised concern about environmental contamination as a possible underlying factor. We measured whole blood concentrations of 30 essential and nonessential elements to determine whether any were associated with beak deformities in Northwestern Crows (Corvus caurinus). We tested for differences between 1) adults with versus those without beak deformities and 2) unaffected adults versus juveniles. Crows with beak deformities had slightly higher levels of barium, molybdenum, and vanadium (all Psmall and values were similar to those from other wild birds. Our results suggest that neither selenium nor other tested elements are likely to be causing beak deformities in Alaskan crows. We also provide the first data on elemental concentrations in Northwestern Crows. Levels of selenium far exceeded those typically found in passerine birds and were similar to those in marine-associated waterfowl, suggesting that background levels should be interpreted relative to a species's environment.

  4. [Differences in vocalization and morphology of the syrinx between Carrion crows (Corvus corone) and Jungle crows (C. macrorhynchos)].

    Science.gov (United States)

    Tsukahara, Naoki; Aoyama, Masato; Sugita, Shoei

    2007-12-01

    The vocal characteristics and the morph of the syrinx in Carrion crows (Corvus corone) and those in Jungle crows (C. macrorhynchos) were compared. The vocalizations of both species of crow were recorded into sonograms and analyzed. The appearance and inner configuration of the syrinx were observed using stereoscopic microscope. In addition, the inside diameter of the syrinx, the sizes of the labia and the attached position of the syringeal muscles were measured. The attached figures of syringeal muscles were different between the two species. The vocalizations of Carrion crows were noisier than possibly because their labias were noticeably smaller than those of Jungle crows. The attachment patterns of the syringeal muscles in Jungle crows suggested that they allow for more flexibility on the inside structure of the syrinx. The inner space of the syrinx in Jungle crows was also wider than those of Carrion crows. These results suggested that Jungle crows may be able to make various vocalizations because of these morphological characteristics.

  5. Development of Dichelops melacanthus and its egg parasitoid Telenomus podisi reared on Bt-soybean MON 87701 x MON 89788 and its near conventional isoline under different temperatures.

    Science.gov (United States)

    Bortolotto, Orcial C; Bueno, Adeney F; Stopa, Ynaiara K; Silva, Gabriela V; Queiroz, Ana Paula

    2016-05-31

    Dichelops melacanthus was studied under controlled conditions (60 ± 10% RH and 14/10 h L/D photoperiod), and three constant temperatures (19, 25, and 31 ± 2 °C). Fresh pods of MON 87701 × MON 89788 soybeans and its near non-Bt isoline (A5547) were supplied to nymphs and adults. The biology of T. podisi was studied in the same controlled RH conditions, but only at the standard temperature of 25 ± 2 °C. Overall, the development of D. melacanthus was better at higher temperatures, which accelerated the development of the stink bug without affecting adult biological parameters. No influence of Bt-soybeans on the biology of the pest was observed in any temperature studied, which shows that D. melacanthus is not affected by this transgenic soybean. The egg parasitoid T. podisi also was not harmed when it parasitized eggs of the pest fed with MON 87701 × MON 89788 soybeans, with similar results to those obtained in non-Bt isogenic soybeans. Thus, this study demonstrates that D. melacanthus is favored at high temperatures (31 ± 2 °C), and that neither did MON 87701 × MON 89788 soybean pods affect the development of the pest nor its parasitoid T. podisi.

  6. Initial Probabilistic Evaluation of Reactor Pressure Vessel Fracture with Grizzly and Raven

    Energy Technology Data Exchange (ETDEWEB)

    Spencer, Benjamin [Idaho National Lab. (INL), Idaho Falls, ID (United States); Hoffman, William [Univ. of Idaho, Moscow, ID (United States); Sen, Sonat [Idaho National Lab. (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Lab. (INL), Idaho Falls, ID (United States); Dickson, Terry [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Bass, Richard [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2015-10-01

    The Grizzly code is being developed with the goal of creating a general tool that can be applied to study a variety of degradation mechanisms in nuclear power plant components. The first application of Grizzly has been to study fracture in embrittled reactor pressure vessels (RPVs). Grizzly can be used to model the thermal/mechanical response of an RPV under transient conditions that would be observed in a pressurized thermal shock (PTS) scenario. The global response of the vessel provides boundary conditions for local models of the material in the vicinity of a flaw. Fracture domain integrals are computed to obtain stress intensity factors, which can in turn be used to assess whether a fracture would initiate at a pre-existing flaw. These capabilities have been demonstrated previously. A typical RPV is likely to contain a large population of pre-existing flaws introduced during the manufacturing process. This flaw population is characterized stastistically through probability density functions of the flaw distributions. The use of probabilistic techniques is necessary to assess the likelihood of crack initiation during a transient event. This report documents initial work to perform probabilistic analysis of RPV fracture during a PTS event using a combination of the RAVEN risk analysis code and Grizzly. This work is limited in scope, considering only a single flaw with deterministic geometry, but with uncertainty introduced in the parameters that influence fracture toughness. These results are benchmarked against equivalent models run in the FAVOR code. When fully developed, the RAVEN/Grizzly methodology for modeling probabilistic fracture in RPVs will provide a general capability that can be used to consider a wider variety of vessel and flaw conditions that are difficult to consider with current tools. In addition, this will provide access to advanced probabilistic techniques provided by RAVEN, including adaptive sampling and parallelism, which can dramatically

  7. Solving the Raven Progressive Matrices by Adults with Intellectual Disability with/without Down Syndrome: Different Cognitive Patterns as Indicated by Eye-Movements

    Science.gov (United States)

    Vakil, Eli; Lifshitz-Zehavi, Hefziba

    2012-01-01

    Raven matrices are used for assessing fluid intelligence and the intellectual level of groups with low intelligence. Our study addresses qualitative analysis of information processing in Raven matrices performance among individuals with intellectual disability with that of their typically developed (TD) counterparts. Twenty-three adults with…

  8. The Advanced Raven's Progressive Matrices: Normative Data for an American University Population and an Examination of the Relationship with Spearman's g.

    Science.gov (United States)

    Paul, Steven M.

    1986-01-01

    Normative data for the Advanced Raven's Progressive Matrices are presented based on 300 University of California, Berkeley, students. Correlations with the Wechsler Adult Intelligence Scale and the Terman Concept Mastery Test are explored. The relationship between the Advanced Raven's Progressive Matrices and Spearman's g is explored. (Author)

  9. Solving the Raven Progressive Matrices by Adults with Intellectual Disability with/without Down Syndrome: Different Cognitive Patterns as Indicated by Eye-Movements

    Science.gov (United States)

    Vakil, Eli; Lifshitz-Zehavi, Hefziba

    2012-01-01

    Raven matrices are used for assessing fluid intelligence and the intellectual level of groups with low intelligence. Our study addresses qualitative analysis of information processing in Raven matrices performance among individuals with intellectual disability with that of their typically developed (TD) counterparts. Twenty-three adults with…

  10. Raven's Progressive Matrices in the Lexicon of Dynamic Mapping of the Brain (MRI).

    Science.gov (United States)

    Mazhirina, K G; Mel'nikov, M E; Pokrovskii, M A; Petrovskii, E D; Savelov, A A; Shtark, M B

    2016-04-01

    Using functional magnetic resonance imaging, we studied intracerebral dynamics during completion of Raven's Progressive Matrices test. Solving the test organized in sets of progressively increasing difficulty cause changes in cerebellar activation functionally related to cognitive activities and operations. As the tasks became more complicated, we observed gradual suppression of the activity of default mode network (DMN). The most pronounced changes in cerebral activation patterns occurred the second set of the test and involved associative somatosensory area and Wernicke's area that is known to play an important role in cognitive processes associated with synthesis and analysis of information.

  11. Raven's progressive matrices test: scale construction and verification of "Flynn effect"

    OpenAIRE

    Lopetegui, María Susana; Neer, Rosa Haydée; Rossi Casé, Lilia Elba

    2002-01-01

    In this paper, the scales of Raven's Progressive Matrices Test, General Scale and Advanced Scale, Series II, for the student population (third cycle of EGB and Polimodal ) in the city of La Plata are presented. Considerations are made as regards both the increase in scores (Flynn effect) observed in relation to the previous scale (1964) and the different mean scores according to two age groups (13-16 and 17-18 years of age) and education mode. The findings enabled inferences related to the si...

  12. Criterion-related validity of Raven's Progressive Matrices with deaf residential school students.

    Science.gov (United States)

    Blennerhassett, L; Strohmeier, S J; Hibbett, C

    1994-03-01

    Criterion-related validity of Raven's Progressive Matrices (RPM) was investigated using a sample of 107 deaf residential adolescents. Data collection involved retrieval of psychoeducational test scores (RPM; WISC-R Performance IQ; VMI-R; Bender-Gestalt; and SAT-HI Reading Comprehension, Spelling, and Language) from student files. Concurrent validity between the Standard Progressive Matrices (SPM) and WISC-R PIQ was established, with significant (p .001) correlations of .598 (using WISC-R deaf norms) and .616 (using WISC-R hearing norms). Predictive validity was supported by significant correlations between the SPM and SAT-HI Reading Comprehension, Spelling, and Language scores.

  13. On rules of induction and the raven paradox in Bayesian confirmation theory

    Science.gov (United States)

    Afshar, H. M.; Sunehag, P.

    2014-12-01

    Confirmation theory is studying how one can confirm a universal statement like "All ravens are black". Early authors discussed how one's degree of belief in such a statement should change with new evidence and suggested various rules of induction. Nicod's Condition (NC) says that the claim that all F are G is supported by observing a previously unseen object that is both F and G. Hempel pointed out that NC implies the paradoxical conclusion that observing a white sock supports that all ravens are black. In our time, confirmation is studied by using subjective conditional probability as degrees of belief with Kolmogorov's axioms as the main rules of induction. The old rules and problems of induction are, however, still studied within the probabilistic framework. We consider a setting where the number of individuals having a particular property is given and find that NC can contradict a simpler principle, namely projectability (PJ) which says that if we observe an object with property ψ then other objects are also more likely to have property ψ. We find that intuition can side with either one depending on the situation. We suggest that a more appropriate formalization of the intuition behind NC is the weaker principle of reasoning by analogy (RA). RA says that if we see an object that is F and G and we know that another object is F, then it is more likely to also be G. Projectability might still be considered valid for relatively uninformed a priori beliefs. If one decides that a principle like projectability is valid for confirmation in an uninformed situation, it provides a test that an a priori distribution must satisfy. Hence, decreasing the arbitrariness of the choice of measure. Further, by considering background knowledge saying only how many ravens there are in the world we conclude that if someone accepts the projectability principle, an agent will not increment the belief that all ravens are black when having observed a white sock. Most Bayesian

  14. Norms for an abbreviated Raven's Coloured Progressive Matrices in an older sample.

    Science.gov (United States)

    Smits, C H; Smit, J H; van den Heuvel, N; Jonker, C

    1997-11-01

    Percentile age norms for ages 55 to 85 using overlapping intervals at specified age midpoints are presented for the sum scores of sections A and B of Raven's Coloured Progressive Matrices (RCPM). The representative age and gender stratified sample (N = 2,815) used is derived from the Longitudinal Aging Study Amsterdam (the Netherlands). As RCPM scores appear to be strongly associated with education, percentile norms for three educational levels are presented: low (0-9 years), middle (10-15 years) and high (16 years and more).

  15. Euripus Mons - Landform Evolution and Climate Constraints in Promethei Terra

    Science.gov (United States)

    van Gasselt, Stephan; Kim, Jungrack; Baik, Hyun-Seob

    2016-04-01

    The Promethei Terra region of Mars exhibits a variety of geomorphic landforms indicative of ice-assisted creep of debris and ice, similar to features and processes found at the Martian dichotomy boundary in Deuteronilus, Protonilus and Nilosyrtis Mensae. Despite only little doubt about the fact that ice played an integral role in the formation of these features, it is still disputed if these features were formed by glacial processes, requiring precipitation of ice and snow and exhibiting glacial deformation and basal sliding, or if these landforms are a product of periglacial denudation and subject to different deformation regimes. As information about past climate conditions on Mars is sparse, the proper assessment of landform types today allows to put constraints on their environmental conditions in the past. Due to limited knowledge about the internal physical and thermal structure of these landforms, it remains impossible to unambiguously determine their origin [1]. A variety of geomorphic and model-based indicators need to be taken into account when putting constraints on their history and when trying to reconstruct their evolution. For selected features on Mars it has been shown by SHARAD radar observations that the ice content might be relatively high [2], and that some of them might be composed of pure ice, protected from sublimation by a thin debris cover. One of such examples, Euripus Mons, is a 80 km remnant feature with an associated circumferential talus deposit that shows indicators for deformation by downslope movement, i.e. debris apron morphology. Recent modelling assuming glacial deformation helped to reconstruct some internal structural properties [3]. Despite these attempts, Euripus Mons shows clear geomorphic signatures of classical periglacial denudation which do not fit into the concept of glacial-only evolution. Denudation rates as well as ages are similar to those reported from other locations on Mars for which hyperarid climate conditions

  16. Nathalie Mons, Les nouvelles politiques éducatives

    OpenAIRE

    Gauthier, Pierre-Louis

    2012-01-01

    La crise de l’éducation dans le monde, clairement explicitée par Philip H. Coombs dès 1985, n’en finit pas d’alimenter la littérature sur le sujet. L’ouvrage de Nathalie Mons se présente comme une tentative pour mettre un peu de rationalité dans une problématique qui, les incohérences des réformateurs aidant, tourne parfois à la cacophonie. Afin d’identifier les orientations politiques dominant le monde éducatif, l’auteur se propose d’explorer trois pistes : les politiques de décentralisation...

  17. Le « panafricanisme » expliqué à mon fils

    OpenAIRE

    Mombo, Charles Edgar

    2009-01-01

    Au moment où l’Afrique en général, et le Ghana, en particulier, s’apprêtent à célébrer le centenaire de la naissance d’un des grands hommes politiques de l’Afrique contemporaine, je voudrais, en réponse à mon fils, examiner ces questions : quelle réception peut-on faire aujourd’hui du panafricanisme ? Que sont devenus les grands idéologues de ce mouvement ? L’Afrique a-t-elle encore une chance de rayonner un jour ? Chacun peut continuer la liste des questions. Comme chacun sait, du moins, je ...

  18. Literature, cinema and history in "Hiroshima Mon Amour"

    Directory of Open Access Journals (Sweden)

    Nismária Alves David Barros

    2013-06-01

    Full Text Available This article analyzes Hiroshima Mon Amour, realization by Alain Resnais divulged in 1959 and ciné-roman by Marguerite Duras published in 1960. Considering the Jeanne-Marie Clerc's theory (2004, we understand that the literature and the cinema are resources of expression that do not establish competition or subordination relations, but they establish complementary relations, they make mutual exchanges for their renewals. They are not the documents on the atomic tragedy of Hiroshima because they congregate historical facts, literary narrative and cinematographic techniques. This ciné-roman and this film displays a revolutionary position of the artistic form to express a critical vision on the world after war. They create a love history and a history of loss, focusing the individual anguish in the plot. Through  the return to the past, using a poetical language, they discloses the pains of the protagonist and the pains of the humanity. Therefore the receiver reflects on himself.

  19. Geology of the Tyrrhenus Mons Lava Flow Field, Mars

    Science.gov (United States)

    Crown, David A.; Mest, Scott C.

    2014-11-01

    The ancient, eroded Martian volcano Tyrrhenus Mons exhibits a central caldera complex, layered flank deposits dissected by radial valleys, and a 1000+ km-long flow field extending to the southwest toward Hellas Planitia. Past studies suggested an early phase of volcanism dominated by large explosive eruptions followed by subsequent effusive activity at the summit and to the southwest. As part of a new geologic mapping study of northeast Hellas, we are examining the volcanic landforms and geologic evolution of the Tyrrhenus Mons flow field, including the timing and nature of fluvial activity and effects on volcanic units. New digital geologic mapping incorporates THEMIS IR (100 m/pixel) and CTX (5 m/pixel) images as well as constraints from MOLA topography.Mapping results to-date include delineation of the boundaries of the flow field, identification and mapping of volcanic and erosional channels within the flow field, and mapping and analysis of lava flow lobes. THEMIS IR and CTX images allow improved discrimination of the numerous flow lobes that are observed in the flow field, including refinement of the margins of previously known flows and identification of additional and smaller lobes. A prominent sinuous rille extending from Tyrrhenus Mons’ summit caldera is a major feature that supplied lava to the flow field. Smaller volcanic channels are common throughout the flow field; some occur in segments along crests of local topographic highs and may delineate lava tubes. In addition to volcanic channels, the flow field surface is characterized by several types of erosional channels, including wide troughs with scour marks, elongate sinuous channels, and discontinuous chains of elongate pits and troughs. High-resolution images reveal the widespread and significant effects of fluvial activity in the region, and further mapping studies will examine spatial and temporal interactions between volcanism and fluvial processes.

  20. QUANTIFICATION OF GENETICALLY MODIFIED MAIZE MON 810 IN PROCESSED FOODS

    Directory of Open Access Journals (Sweden)

    Peter Siekel

    2012-12-01

    Full Text Available 800x600 Normal 0 21 false false false SK X-NONE X-NONE MicrosoftInternetExplorer4 Maize MON 810 (Zea mays L. represents the majority of genetically modified food crops. It is the only transgenic cultivar grown in the EU (European Union countries and food products with its content higher than 0.9 % must be labelled. This study was aimed at impact of food processing (temperature, pH and pressure on DNA degradation and quantification of the genetically modified maize MON 810. The transgenic DNA was quantified by the real-time polymerase chain reaction method. Processing as is high temperature (121 °C, elevated pressure (0.1 MPa and low pH 2.25 fragmented DNA. A consequence of two order difference in the species specific gene content compared to the transgenic DNA content in plant materials used has led to false negative results in the quantification of transgenic DNA. The maize containing 4.2 % of the transgene after processing appeared to be as low as 3.0 % (100 °C and 1.9 % (121 °C, 0.1 MPa. The 2.1 % amount of transgene dropped at 100 °C to 1.0 % and at 121 °C, 0.1 MPa to 0.6 %. Under such make up the DNA degradation of transgenic content showed up 2 or 3 time higher decrease a consequence of unequal gene presence. Such genes disparity is expressed as considerable decrease of transgenic content while the decrease of species specific gene content remains unnoticed. Based on our findings we conclude that high degree of processing might have led to false negative results of the transgenic constituent quantification. Determination of GMO content in processed foods may leads to incorrect statement and labelling in these cases could misleads consumers.doi:10.5219/212

  1. Geologic map of the Metis Mons quadrangle (V–6), Venus

    Science.gov (United States)

    Dohm, James M.; Tanaka, Kenneth L.; Skinner, James A.

    2011-01-01

    The Metis Mons quadrangle (V–6) in the northern hemisphere of Venus (lat 50° to 75° N., long 240° to 300° E.) includes a variety of coronae, large volcanoes, ridge and fracture (structure) belts, tesserae, impact craters, and other volcanic and structural features distributed within a plains setting, affording study of their detailed age relations and evolutionary development. Coronae in particular have magmatic, tectonic, and topographic signatures that indicate complex evolutionary histories. Previously, the geology of the map region has been described either in general or narrowly focused investigations. Based on Venera radar mapping, a 1:15,000,000-scale geologic map of part of the northern hemisphere of Venus included the V–6 map region and identified larger features such as tesserae, smooth and hummocky plains materials, ridge belts, coronae, volcanoes, and impact craters but proposed little relative-age information. Global-scale mapping from Magellan data identified similar features and also determined their mean global ages with crater counts. However, the density of craters on Venus is too low for meaningful relative-age determinations at local to regional scales. Several of the coronae in the map area have been described using Venera data (Stofan and Head, 1990), while Crumpler and others (1992) compiled detailed identification and description of volcanic and tectonic features from Magellan data. The main purpose of this map is to reconstruct the geologic history of the Metis Mons quadrangle at a level of detail commensurate with a scale of 1:5,000,000 using Magellan data. We interpret four partly overlapping stages of geologic activity, which collectively resulted in the formation of tesserae, coronae (oriented along structure belts), plains materials of varying ages, and four large volcanic constructs. Scattered impact craters, small shields and pancake-shaped domes, and isolated flows superpose the tectonically deformed materials and appear to

  2. Ode to Ehrlich and Raven or how herbivorous insects might drive plant speciation.

    Science.gov (United States)

    Marquis, Robert J; Salazar, Diego; Baer, Christina; Reinhardt, Jason; Priest, Galen; Barnett, Kirk

    2016-11-01

    Fifty years ago, Ehrlich and Raven proposed that insect herbivores have driven much of plant speciation, particularly at tropical latitudes. There have been no explicit tests of their hypotheses. Indeed there were no proposed mechanisms either at the time or since by which herbivores might generate new plant species. Here we outline two main classes of mechanisms, prezygotic and postzygotic, with a number of scenarios in each by which herbivore-driven changes in host plant secondary chemistry might lead to new plant lineage production. The former apply mainly to a sympatric model of speciation while the latter apply to a parapatric or allopatric model. Our review suggests that the steps of each mechanism are known to occur individually in many different systems, but no scenario has been thoroughly investigated in any one system. Nevertheless, studies of Dalechampia and its herbivores and pollinators, and patterns of defense tradeoffs in trees on different soil types in the Peruvian Amazon provide evidence consistent with the original hypotheses of Ehrlich and Raven. For herbivores to drive sympatric speciation, our findings suggest that interactions with both their herbivores and their pollinators should be considered. In contrast, herbivores may drive speciation allopatrically without any influence by pollinators. Finally, there is evidence that these mechanisms are more likely to occur at low latitudes and thus more likely to produce new species in the tropics. The mechanisms we outline provide a predictive framework for further study of the general role that herbivores play in diversification of their host plants.

  3. Application of hierarchical genetic models to Raven and WAIS subtests: a Dutch twin study.

    Science.gov (United States)

    Rijsdijk, Frühling V; Vernon, P A; Boomsma, Dorret I

    2002-05-01

    Hierarchical models of intelligence are highly informative and widely accepted. Application of these models to twin data, however, is sparse. This paper addresses the question of how a genetic hierarchical model fits the Wechsler Adult Intelligence Scale (WAIS) subtests and the Raven Standard Progressive test score, collected in 194 18-year-old Dutch twin pairs. We investigated whether first-order group factors possess genetic and environmental variance independent of the higher-order general factor and whether the hierarchical structure is significant for all sources of variance. A hierarchical model with the 3 Cohen group-factors (verbal comprehension, perceptual organisation and freedom-from-distractibility) and a higher-order g factor showed the best fit to the phenotypic data and to additive genetic influences (A), whereas the unique environmental source of variance (E) could be modeled by a single general factor and specifics. There was no evidence for common environmental influences. The covariation among the WAIS group factors and the covariation between the group factors and the Raven is predominantly influenced by a second-order genetic factor and strongly support the notion of a biological basis of g.

  4. Evidence of Carriage of Antimicrobial Resistant Salmonella species of Public Health and Veterinary Significance in the Intestines of House Crows (Corvus splendens) in Tanzania

    OpenAIRE

    Katani, Shaaban J.; Erick V. G. Komba; Mzula, Alexanda; Lyantagaye, Sylvester L.

    2014-01-01

    The Indian house crow, Corvus splendens (Vieillot) was introduced in Zanzibar, Tanzania by the British and immigrants from India in 1897 to help clean the town. The crow is responsible for polluting the environment, water sources and human surroundings by their droppings and the rubbish they carry. This behavior has led to concern that, the crows may be responsible for the spread of certain pathogens including Salmonella and their persistence in the environment.Given the zoonotic potential o...

  5. Using THEMIS and TES to conduct a mineral analysis on Olympus Mons

    Science.gov (United States)

    Chase, Nicole Danielle

    2016-10-01

    Olympus Mons is the largest shield volcano in our known solar system. In previous studies, the composition of the basaltic lava flows on Olympus Mons was shown to be similar to the composition of those lava flows of Earth's shield volcanoes. It has been suggested that basalt located near volcanoes contained bacteria living below the surface of the Earth. In this pilot study, the effect of Olympus Mons' aspect (i.e. north- vs. south-facing slope) on its mineral composition was examined. Imagery from Thermal Emission Imaging System (THEMIS), onboard the Mars Odyssey spacecraft, were used because Olympus Mons' size and surface roughness hinder rover exploration. After removing transmission errors and performing an atmospheric correction, the THEMIS images were ready to be analyzed via a mineral spectral library. Using Arizona State University's Thermal Emission Spectrometer (TES) derived mineral spectral library, the images were classified in ENVI. These classifications were verified using ASU's GIS tool, Java Mission-planning and Analysis for Remote Sensing (JMARS) and TES. Results show differences in the mineral composition and in the geological features on Olympus Mons' surface. The mineral vanadinite was shown to be prevalent on the sampled southern portions of Olympus Mons, but was sparse on the sampled northern portions. Previous studies suggested that the mineral ilmenite, which this study found in high concentrations on the sampled northern portions of Olympus Mons, might serve as a food source for iron-oxidizing and iron-scavenging bacteria. Future research should focus on better understanding the concentrations of vanadinite and ilmenite on Olympus Mons to see if these minerals have a role in the potential presence of bacteria on Olympus Mons.

  6. Matrizes progressivas coloridas de Raven - escala especial: normas para Porto Alegre, RS The Raven's coloured progressive matrices: norms for Porto Alegre, RS

    Directory of Open Access Journals (Sweden)

    Denise Ruschel Bandeira

    2004-12-01

    Full Text Available O Teste das Matrizes Progressivas Coloridas de Raven destina-se à avaliação do desenvolvimento intelectual de crianças de 5 a 11 anos de idade. O presente trabalho teve como objetivo estabelecer normas para as crianças de Porto Alegre - RS. A amostra foi composta por 779 crianças matriculadas em escolas estaduais, de 4 anos e 9 meses a 11 anos e 9 meses. Foi constatado aumento progressivo nas médias de pontos com o aumento da idade e não foram encontradas diferenças entre meninos e meninas. Na comparação com as crianças de escolas públicas de São Paulo, as médias das crianças de Porto Alegre foram mais altas, mas em geral foram inferiores às das escolas particulares de São Paulo. Foram estabelecidas as normas em percentis para cada faixa etária. Os resultados reforçam a necessidade do estabelecimento de normas distintas para as diferentes regiões do Brasil, principalmente em relação aos testes de inteligência.The Raven's Coloured Progressive Matrices was proposed standards to Porto Alegre (RS children. The sample was composed by 779 children from Porto Alegre state public schools, aged from 4 years and 9 months to 11 years and 9 months. It was found a progressive increase in average scores as age increased and it was not verified differences between boys and girls. Comparing average scores between children from São Paulo and Porto Alegre public schools we found that the average scores from Porto Alegre children was higher, but they were lower than the scores from São Paulo private schools children. Percentile ranks were obtained to each age level with range of six months. Research results show the need to establish specific norms to different Brazilian regions, mainly concerning intelligence tests.

  7. Tolerance of Bt corn (MON 810) to maize stem borer, Chilo partellus (Lepidoptera: Pyralidae).

    Science.gov (United States)

    Singh, Ramkumar; Channappa, Ravi K; Deeba, Farah; Nagaraj, Nandi J; Sukavaneaswaran, Mohan K; Manjunath, T M

    2005-11-01

    Transgenic corn (MON 810), expressing the Bacillus thuringiensis (Bt) protein, Cry1Ab, was evaluated under greenhouse conditions for its tolerance to the maize stem borer, Chilo partellus. Bt corn (MON 810) provided effective protection against the stem borer even under a high level of larval infestation in the greenhouse. The observed tolerance is examined and discussed in the light of the susceptibility of C. partellus to the Cry1Ab protein in laboratory bioassays. The implications of the tissue concentrations of Cry1Ab in MON 810, and baseline susceptibility recorded in the current study, for insect-resistance management are discussed.

  8. The Bender Gestalt and the Ravens Progressive Matrices Measures of Perceptual Behavior, Motor Behavior and Perceptual-Motor Behavior.

    Science.gov (United States)

    Roberds, Jeannette

    The scores of 79 second-grade pupils on the Ravens Colored Progressive Matrices and the Bender Gestalt were factor-analyzed using six different factor-analytic procedures. Sex, age, and vocabulary test scores were included in the analysis as marker variables. The original factor solutions were subjected to oblique transformation and the…

  9. Blue Tigers, Black Tapirs, & the Pied Raven of the Faroe Islands: Teaching Genetic Drift Using Real-Life Animal Examples

    Science.gov (United States)

    Robischon, Marcel

    2015-01-01

    Genetic drift is a concept of population genetics that is central to understanding evolutionary processes and aspects of conservation biology. It is frequently taught using rather abstract representations. I introduce three real-life zoological examples, based on historical and recent color morphs of tigers, tapirs, and ravens, that can complement…

  10. Coyote and Raven Talk about Indigenizing Environmental Education: Or Reconfiguring the Shenanigans of Otis O'Dewey Esquire

    Science.gov (United States)

    Cole, Peter

    2012-01-01

    First Nations tricksters, Coyote and Raven, work to indigenize Environmental Education but run up against mainstream languages, technologies, and educational practices. They try to do an end-run around the cognitive backfield, then portage through marginal spaces, but find that working between Indigenous languages and mainstream ones can work best…

  11. Comparison of Intellectual Performance of Chicano and Anglo Third-Grade Boys on the Raven's Coloured Progressive Matrices.

    Science.gov (United States)

    Valencia, Richard R.

    1979-01-01

    Compares the nonverbal intellectual performance as measured by the Raven's Coloured Progressive Matrices of Chicano and Anglo third-grade boys. When language status and cultural content of the testing instrument are controlled, mean group differences become negligible. This is a sound intelligence measure for use with Chicano children. (Author)

  12. BREEDING BIOLOGY OF ROOK (CORVUS FRUGILEGUS IN THE HUMAN TRANSFORMED STEPPE ECOSYSTEMS (THE CASE OF BOTIEVO WIND FARM

    Directory of Open Access Journals (Sweden)

    A. O. Dranga

    2016-01-01

    Full Text Available The article gives a space-structural characteristic of rook (Corvus frugilegus nesting places in the territory of Botievo wind farm (Zaporizhzhia region. The distribution of the rook colonies around the territory, the structure of the colonies, the dependence of the location of the nests on the height, diameter, condition and species composition of tree and shrub plantings are analyzed and studied. The types and methods of the localization of nests in the trees and their quantitative characteristics are highlighted. The consortium relations of the rook and the risks associated with living near existing wind turbines are described. In 2015 some eight colonies were found: 2 medium (51-100 nests and 6 large (101-500 nests ones. All the colonies were located in the forest belts, mainly represented by locust trees Gleditsia triacanthos (7 colonies and in the mixed forest consisting of the mulberry Morus sp., maple Acer, black locust Robinia pseudoacacia, and locust trees (1 colony. The area occupied by colonies had a four-fold difference between 977-3994 m2, while the number of the rook nests fluctuated in a seven-fold range - 52-343 nests. Analysis of different indicators describing the structure of the rook colonies revealed certain dependence between the breeding area and the number of the occupied trees (r = 0.97; the breeding area and the number of nests (r = 0.60; the number of nests in the colony and the closeness of the trees in the forest belts (r = 0.91; the number of nests and the number of the occupied trees (r = 0.74, the height of the tree and the nest on it (r = 0.64. The characteristic of the location of nests in different rows of the forest belt revealed the shift of the density of the occupation of trees in large colonies to one of the outer rows, where there were 26.0-27.5 percent of all the nests. Typology and localization of rook nests in the trees has 11 options of the location. The type of the location of nests near the trunk

  13. High-resolution near-bottom vector magnetic anomalies over Raven Hydrothermal Field, Endeavour Segment, Juan de Fuca Ridge

    Science.gov (United States)

    Tivey, Maurice A.; Johnson, H. Paul; Salmi, Marie S.; Hutnak, Michael

    2014-10-01

    High-resolution, near-bottom vector magnetic data were collected by remotely operated vehicle Jason over the Raven hydrothermal vent field (47°57.3'N 129°5.75'W) located north of Main Endeavour vent field on the Endeavour segment of the Juan de Fuca Ridge. The survey was part of a comprehensive heat flow study of the Raven site using innovative thermal blanket technology to map the heat flux and crustal fluid pathways around a solitary hydrothermal vent field. Raven hydrothermal activity is presently located along the western axial valley wall, while additional inactive hydrothermal deposits are found to the NW on the upper rift valley wall. Magnetic inversion results show discrete areas of reduced magnetization associated with both active and inactive hydrothermal vent deposits that also show high conductive heat flow. Higher spatial variability in the heat flow patterns compared to the magnetization is consistent with the heat flow reflecting the currently active but ephemeral thermal environment of fluid flow, while crustal magnetization is representative of the static time-averaged effect of hydrothermal alteration. A general NW to SE trend in reduced magnetization across the Raven area correlates closely with the distribution of hydrothermal deposits and heat flux patterns and suggests that the fluid circulation system at depth is likely controlled by local crustal structure and magma chamber geometry. Magnetic gradient tensor components computed from vector magnetic data improve the resolution of the magnetic anomaly source and indicate that the hydrothermally altered zone directly beneath the Raven site is approximately 15 × 106 m3 in volume.

  14. Geologic Map of the Sif Mons Quadrangle (V-31), Venus

    Science.gov (United States)

    Copp, Duncan L.; Guest, John E.

    2007-01-01

    The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the Venusian atmosphere on October 12, 1994. Magellan Mission objectives included (1) improving the knowledge of the geological processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2) improving the knowledge of the geophysics of Venus by analysis of Venusian gravity. The Sif Mons quadrangle of Venus includes lat 0? to 25? N. and long 330? to 0? E.; it covers an area of about 8.10 x 106 km2 (fig. 1). The data used to construct the geologic map were from the National Aeronautics and Space Administration (NASA) Magellan Mission. The area is also covered by Arecibo images, which were also consulted (Campbell and Campbell, 1990; Campbell and others, 1989). Data from the Soviet Venera orbiters do not cover this area. All of the SAR products were employed for geologic mapping. C1-MIDRs were used for general recognition of units and structures; F-MIDRs and F-MAPs were used for more specific examination of surface characteristics and structures. Where the highest resolution was required or some image processing was necessary to solve a particular mapping problem, the images were examined using the digital data on CD-ROMs. In cycle 1, the SAR incidence angles for images obtained for the Sif Mons quadrangle ranged from 44? to 46?; in cycle 3, they were between 25? and 26?. We use the term 'high backscatter' of a material unit to imply a rough surface texture at the wavelength scale used by Magellan SAR. Conversely, 'low backscatter' implies a smooth surface. In addition, altimetric, radiometric, and rms slope data were superposed on SAR images. Figure 2 shows altimetry data; figure 3 shows images of ancillary data for the quadrangle; and figure 4 shows backscatter coefficient for selected units. The interpretation of these data was discussed by Ford and others (1989, 1993). For corrected backscatter and

  15. V838 Mon and M31-RV: The Stellar Populations Angle

    CERN Document Server

    Siegel, M H; Siegel, Michael H.; Bond, Howard E.

    2006-01-01

    Insight into the origin of unusual events like the eruption of V838 Mon can be obtained from studies of the stellar populations from which they arise. V838 Mon lies in an intriguing region of the Galaxy, toward the warped outer edge of the disk, with significant contributions from the Galactic thick disk and the recently discovered Monoceros tidal stream. The initial distance measures placed V838 Mon in a jumbled region of the Galaxy but the recent shorter distances make it highly likely that V838 Mon was a thin disk star -- likely in a spiral arm -- consistent with the recent detection of a young cluster in the vicinity. We compare V838 Mon to M31-RV, a red variable that erupted in the bulge of M31 in 1988 and had a peak luminosity and spectral evolution very similar to V838 Mon. Archival HST images show no nebulosity or unusual stars at M31-RV's projected location. Moreover, the only stellar population in the field is a canonic old bulge population. This indicates that whatever the origin of the red novae, ...

  16. Relaciones entre los potenciales evocados cognitivos auditivos y el Test de Matrices Progresivas de Raven

    OpenAIRE

    2002-01-01

    En una muestra de 30 sujetos (12 varones y 18 mujeres) se registraron los potenciales evocados endógenos (PEE) (cognitivos) auditivos y se aplicó el Test de Matrices Progresivas de Raven (TMPR), escala general. Se encontró una correlación entre TMPR y la latencia de P3, la amplitud de P3 y la latencia de N2. Además, se halló una correlación entre el tiempo (T) empleado en la ejecución del TMPR y la latencia de P3 y la amplitud de P3. También se encontró una correlación entre P/...

  17. Ravens parallel great apes in flexible planning for tool-use and bartering.

    Science.gov (United States)

    Kabadayi, Can; Osvath, Mathias

    2017-07-14

    The ability to flexibly plan for events outside of the current sensory scope is at the core of being human and is crucial to our everyday lives and society. Studies on apes have shaped a belief that this ability evolved within the hominid lineage. Corvids, however, have shown evidence of planning their food hoarding, although this has been suggested to reflect a specific caching adaptation rather than domain-general planning. Here, we show that ravens plan for events unrelated to caching-tool-use and bartering-with delays of up to 17 hours, exert self-control, and consider temporal distance to future events. Their performance parallels that seen in apes and suggests that planning evolved independently in corvids, which opens new avenues for the study of cognitive evolution. Copyright © 2017, American Association for the Advancement of Science.

  18. A normative study of a shorter version of Raven's progressive matrices 1938.

    Science.gov (United States)

    Caffarra, P; Vezzadini, G; Zonato, F; Copelli, S; Venneri, A

    2003-12-01

    A shorter four-set (A, B, C, D) version of Raven's progressive matrices 1938 (PM38) has gained increasing use in neuropsychological assessment. No normative data spanning across a wide age range are, however, available. This study collected norms for the shorter version of PM38, established an inferential cut-off value and derived equivalent scores in a sample of 248 individuals from 20 to 89 years of age, evenly distributed across sex, age and education levels. Results showed significant effects of age and education but no effect of sex on performance. These normative data will complement existing norms for other tests, will increase the wealth of neuropsychological tools for which normative data are available for the Italian population, and may be useful in the early detection of individuals at risk of developing dementia.

  19. Fast Kalman Filtering for Relative Spacecraft Position and Attitude Estimation for the Raven ISS Hosted Payload

    Science.gov (United States)

    Galante, Joseph M.; Van Eepoel, John; D'Souza, Chris; Patrick, Bryan

    2016-01-01

    The Raven ISS Hosted Payload will feature several pose measurement sensors on a pan/tilt gimbal which will be used to autonomously track resupply vehicles as they approach and depart the International Space Station. This paper discusses the derivation of a Relative Navigation Filter (RNF) to fuse measurements from the different pose measurement sensors to produce relative position and attitude estimates. The RNF relies on relative translation and orientation kinematics and careful pose sensor modeling to eliminate dependence on orbital position information and associated orbital dynamics models. The filter state is augmented with sensor biases to provide a mechanism for the filter to estimate and mitigate the offset between the measurements from different pose sensors

  20. The post-outburst photometric behaviour of V838 Mon

    CERN Document Server

    Crause, L A; Kilkenny, D; Van Wyk, F; Marang, F; Jones, A F; Crause, Lisa A.; Lawson, Warrick A.; Kilkenny, David; Wyk, Francois van; Marang, Fred; Jones, Albert F.

    2003-01-01

    The unusual eruptive variable discovered in Monoceros in 2002 January underwent dramatic photometric and spectroscopic changes in the months prior to its 2002 June-August conjunction with the Sun. Optical and infrared (IR) photometry obtained at the South African Astronomical Observatory (SAAO) between 2002 January and June (JD 2452280-440) is presented here in an analysis of the star's post-outburst behaviour. The light curve indicated 3 eruptions took place in 2002 January, February and March. SAAO echelle spectra obtained in the week prior to the March maximum indicated the ejection of a new shell of material. JHKL photometry obtained during 2002 April showed the development of an IR excess due to the formation of a dust shell. The shell appears to be largely responsible for the rapid fade in the optical flux during 2002 April-May (Delta V > 6 mag within 3 weeks). Blueing of the optical colours during the decline is likely due either to the revealing of an emission line region surrounding V838 Mon, or the ...

  1. On the distance, reddening and progenitor of V838 Mon

    CERN Document Server

    Munari, U; Vallenari, A; Bond, H E; Corradi, R L M; Crause, L; Desidera, S; Giro, E; Marrese, P M; Ragaini, S; Siviero, A; Sordo, R; Starrfield, S; Tomov, T; Villanova, S; Zwitter, T; Wagner, R M

    2005-01-01

    Extensive optical and infrared photometry as well as low and high resolution spectroscopy are used as inputs in deriving robust estimates of the reddening, distance and nature of the progenitor of V838 Mon. The reddening is found to obey the R_V=3.1 law and amounts to (i) E(B-V)=0.86 from the interstellar NaI and KI lines, (ii) E(B-V)=0.88 from the energy distribution of the B3V component and (iii) E(B-V)=0.87 from the progression of extinction along the line of sight. The adopted E(B-V)=0.87(+/-0.01) is also the amount required by fitting the progenitor with theoretical isochrones of appropriate metallicity. The distance is estimated from (a) the galactic kinematics of the three components of the interstellar lines, (b) the amount of extinction vs the HI column density and vs the dust emission through the whole Galaxy in that direction, from (c) spectrophotometric parallax to the B3V companion, from (d) comparison of the observed color-magnitude diagram of field stars with 3D stellar population models of the...

  2. Absence of vancomycin-resistant enterococci among highly ESBL-positive crows (Corvus splendens foraging on hospital waste in Bangladesh

    Directory of Open Access Journals (Sweden)

    Badrul Hasan

    2015-12-01

    Full Text Available Background: Vancomycin-resistant enterococci (VRE have emerged as a growing problem in hospitals; however, domesticated animals, poultry, and wild birds are acting as potential reservoirs. There is a knowledge gap in the Epidemiology of VRE from Bangladesh. Methods: To study the prevalence of VRE and the mechanisms of resistance implicated among wild birds, 238 fecal samples were collected in 2010 from house crows (Corvus splendens foraging on hospital waste in Bangladesh. Fecal samples were screened by analyzing color change in broth and screening for vanA and vanB resistant genes by PCR. Results: Neither vanA nor vanB genes were detected from the fecal samples. The house crow does not seem to constitute a reservoir for VRE. Conclusion: The zero prevalence is an indication that foraging on hospital waste does not constitute a major risk of VRE carriage in house crows and this is the first study to focus on the prevalence of VRE from wild birds in Bangladesh.

  3. Detection of protozoan and bacterial pathogens of public health importance in faeces of Corvus spp. (large-billed crow).

    Science.gov (United States)

    Lee, H Y; Stephen, A; Sushela, D; Mala, M

    2008-08-01

    Parasites and bacteria are reported in the faeces of birds in the current study. Fresh faecal samples of the large-billed crow (Corvus spp.) were collected from the study site at Bangsar, an urban setting in Kuala Lumpur, Malaysia. These samples were transported to laboratory and analysed for parasites and bacteria. Pre-prepared XLD agar plates were used for culturing the bacteria in the laboratory. Using the API 20ETM Test Strips, 9 different species of bacteria were identified belonging to the family Enterobacteriacea. They were Citrobacter freundii, Enterobacter cloacae, Proteus mirabilis, Klebsiella pneumoniae, Kluyvera ascorbata, Salmonella arizonae, Salmonella typhi, Shigella flexneri and Shigella sonnei. The protozoan parasites detected include Cryptosporidium spp., Cyclospora spp., Blastocystis spp., and Capillaria hepatica and Ascaris lumbricoidus ova. Environmental air samples collected on agar plates using an air sampler in the area only produced fungal colonies. Some of these pathogens found in the crows are of zoonotic importance, especially Cryptosporidium, Blastocystis, Cyclopsora, Salmonella, Shigella and Kluyvera. The finding of Kluyvera spp. in crows in our current study highlights its zoonotic potential in an urban setting.

  4. Pokémon is Evolving! An investigation into the development of the Pokémon community and expectations for the future of the franchise

    Directory of Open Access Journals (Sweden)

    Carina Assunção

    2017-06-01

    Full Text Available Pokémon is one of Nintendo’s largest, most influential franchises. With a history ranging more than twenty years, its enormous fan-base spans video and trading card games, anime TV shows and films, amongst other media. This paper aims to investigate the Pokémon fan community while exploring how the franchise has grown: from its beginnings as a pop-culture phenomenon, to one of the strongest and friendliest gaming fan communities in existence today. Data gathered from 165 online respondents examines how fans’ past experiences with the franchise inform their expectations towards future products. It also explores how considerable efforts from developers – as well as the gaming community – contribute to the creative growth of a continually-expanding fan-base. Additionally, this study was in a unique position to gather data before two new Pokémon games were released: Pokken Tournament and Pokémon GO. The former did not generate high expectations but still performed well in terms of sales. The latter was thought of as a casual game but, as the world now knows, was a tremendous success. Insights obtained from researching fan attitudes to unreleased games show that expectations do not always become reality.

  5. Estudio sobre la pertinencia del uso de las normas disponibles del Raven en adultos mayores chilenos Estudo sobre a pertinência da utilização das normas disponíveis de Raven em idosos chilenos Study on the relevance of using available norms Raven in Chileans older adults

    Directory of Open Access Journals (Sweden)

    Cristina Alarcón Paz

    2012-12-01

    Full Text Available La evaluación de la inteligencia en población adulto mayor ha aumentado su relevancia debido al incremento de la esperanza de vida. Este estudio centra su interés en la pertinencia de normas disponibles para el Test de Matrices Progresivas de Raven para dicha población. Se utilizaron normas de Colchester (1942, en Raven, Court y Raven, 2008, las más completas existentes. Participaron 102 adultos mayores voluntarios (más de 60 años. El diseño fue no experimental transversal correlacional. Los resultados indican que las normas resultan poco exigentes para ese grupo y que existen diferencias significativas entre los adultos de la tercera y cuarta edad, privilegiando a los del primer grupo. El índice de discrepancia mostró alta sensibilidad, indicando que la distribución de puntajes esperados no se corresponde al de la población general. Se discuten los resultados en torno a la necesidad de actualización de las normas y la consideración de las nuevas características de este periodo vital.A avaliação da inteligência na população idosa tem aumentado sua importância devido ao aumento da expectativa de vida. Este estudo está centrado na relevância das normas disponíveis para o teste de Matrizes Progressivas de Raven para essa população. Foram utilizadas as normas de Colchester (1942, citado por Raven, Court y Raven, 2008, as mais completas disponíveis. Participaram 102 idosos voluntários (com idade superior a 60 anos. O desenho do estudo foi não experimental transversal correlacional. Os resultados indicam que as normas são pouco exigentes para esse grupo e que existem diferenças significativas entre os adultos da terceira e quarta idade, privilegiando o primeiro grupo. O índice de discrepância mostrou alta sensibilidade, indicando que a distribuição de pontuações esperadas não corresponde a da população em geral. Os resultados são discutidos em relação à necessidade de atualização das normas e da considera

  6. Geologic Mapping of the Olympus Mons Volcano, Mars

    Science.gov (United States)

    Bleacher, J. E.; Williams, D. A.; Shean, D.; Greeley, R.

    2012-01-01

    We are in the third year of a three-year Mars Data Analysis Program project to map the morphology of the Olympus Mons volcano, Mars, using ArcGIS by ESRI. The final product of this project is to be a 1:1,000,000-scale geologic map. The scientific questions upon which this mapping project is based include understanding the volcanic development and modification by structural, aeolian, and possibly glacial processes. The project s scientific objectives are based upon preliminary mapping by Bleacher et al. [1] along a approx.80-km-wide north-south swath of the volcano corresponding to High Resolution Stereo Camera (HRSC) image h0037. The preliminary project, which covered approx.20% of the volcano s surface, resulted in several significant findings, including: 1) channel-fed lava flow surfaces are areally more abundant than tube-fed surfaces by a ratio of 5:1, 2) channel-fed flows consistently embay tube-fed flows, 3) lava fans appear to be linked to tube-fed flows, 4) no volcanic vents were identified within the map region, and 5) a Hummocky unit surrounds the summit and is likely a combination of non-channelized flows, dust, ash, and/or frozen volatiles. These results led to the suggestion that the volcano had experienced a transition from long-lived tube-forming eruptions to more sporadic and shorter-lived, channel-forming eruptions, as seen at Hawaiian volcanoes between the tholeiitic shield building phase (Kilauea to Mauna Loa) and alkalic capping phase (Hualalai and Mauna Kea).

  7. Scientific Opinion of the Panel on Genetically Modified Organisms on an application (Reference EFSA-GMO-CZ-2006-33) for the placing on the market of the insect-resistant and glyphosate-tolerant genetically modified maize MON 88017 x MON 810, for food and feed uses, import and processing under

    DEFF Research Database (Denmark)

    Sørensen, Ilona Kryspin

    . Further information from applications for placing the single insert lines MON 88017 and MON 810 on the market under EU regulatory procedures was taken into account where appropriate. The scope of application EFSA-GMO-CZ-2006-33 is for food and feed uses, import and processing of genetically modified maize...... MON 88017 x MON 810 and all derived products, but excluding cultivation in the EU. The EFSA GMO Panel assessed maize MON 88017 x MON 810 with reference to the intended uses and the appropriate principles described in the Guidance Document of the Scientific Panel on Genetically Modified Organisms...... or survival of feral maize plants in case of accidental release into the environment of maize MON 88017 x MON 810 viable grains during transportation and processing. The scope of the post-market environmental monitoring plan provided by the applicant is in line with the intended uses of maize MON 88017 x MON...

  8. Genetic and environmental contributions to population group differences on the Raven's Progressive Matrices estimated from twins reared together and apart

    OpenAIRE

    Rushton, J. Philippe; Bons, Trudy Ann; Vernon, Philip A; Čvorović, Jelena

    2007-01-01

    We carried out two studies to test the hypothesis that genetic and environmental influences explain population group differences in general mental ability just as they do individual differences within a group. We estimated the heritability and environmentality of scores on the diagrammatic puzzles of the Raven's Coloured and/or Standard Progressive Matrices (CPM/SPM) from two independent twin samples and correlated these estimates with group differences on the same items. In Study 1, 199 pair...

  9. Improving Limit Surface Search Algorithms in RAVEN Using Acceleration Schemes: Level II Milestone

    Energy Technology Data Exchange (ETDEWEB)

    Alfonsi, Andrea [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Rabiti, Cristian [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Mandelli, Diego [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Cogliati, Joshua Joseph [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Sen, Ramazan Sonat [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Smith, Curtis Lee [Idaho National Laboratory (INL), Idaho Falls, ID (United States)

    2015-07-01

    The RAVEN code is becoming a comprehensive tool to perform Probabilistic Risk Assessment (PRA); Uncertainty Quantification (UQ) and Propagation; and Verification and Validation (V&V). The RAVEN code is being developed to support the Risk-Informed Safety Margin Characterization (RISMC) pathway by developing an advanced set of methodologies and algorithms for use in advanced risk analysis. The RISMC approach uses system simulator codes applied to stochastic analysis tools. The fundamental idea behind this coupling approach to perturb (by employing sampling strategies) timing and sequencing of events, internal parameters of the system codes (i.e., uncertain parameters of the physics model) and initial conditions to estimate values ranges and associated probabilities of figures of merit of interest for engineering and safety (e.g. core damage probability, etc.). This approach applied to complex systems such as nuclear power plants requires performing a series of computationally expensive simulation runs. The large computational burden is caused by the large set of (uncertain) parameters characterizing those systems. Consequently, exploring the uncertain/parametric domain, with a good level of confidence, is generally not affordable, considering the limited computational resources that are currently available. In addition, the recent tendency to develop newer tools, characterized by higher accuracy and larger computational resources (if compared with the presently used legacy codes, that have been developed decades ago), has made this issue even more compelling. In order to overcome to these limitations, the strategy for the exploration of the uncertain/parametric space needs to use at best the computational resources focusing the computational effort in those regions of the uncertain/parametric space that are “interesting” (e.g., risk-significant regions of the input space) with respect the targeted Figures Of Merit (FOM): for example, the failure of the system

  10. RAVEN - High-resolution Mapping of Venus within a Discovery Mission Budget

    Science.gov (United States)

    Sharpton, V. L.; Herrick, R. R.; Rogers, F.; Waterman, S.

    2009-12-01

    It has been more than 15 years since the Magellan mission mapped Venus with S-band synthetic aperture radar (SAR) images at ~100-m resolution. Advances in radar technology are such that current Earth-orbiting SAR instruments are capable of providing images at meter-scale resolution. RAVEN (RAdar at VENus) is a mission concept that utilizes the instrument developed for the RADARSAT Constellation Mission (RCM) to map Venus in an economical, highly capable, and reliable way. RCM relies on a C-band SAR that can be tuned to generate images at a wide variety of resolutions and swath widths, ranging from ScanSAR mode (broad swaths at 30-m resolution) to strip-map mode (resolutions as fine as 3 m), as well as a spotlight mode that can image patches at 1-m resolution. In particular, the high-resolution modes allow the landing sites of previous missions to be pinpointed and characterized. Repeat-pass interferometric SAR (InSAR) and stereo radargrammetry provide options for constraining topography to better than 100-m horizontal and 10-m vertical resolution. InSAR also provides the potential for detecting surface deformation at centimeter precision. Performing InSAR requires precise knowledge and control of the orbital geometry, and for this reason a 600-km circular polar orbit is favored. This configuration causes the equatorial nadir point to move ~9 km per orbit. Considering both ascending and descending passes, the spacecraft will pass over every point on the planet in half a Venus day (~4 Earth months). The ability to transmit data back to Earth via the Deep Space Network is the primary limiting factor on the volume of data that can be collected. Our current estimates indicate that within an imaging cycle of one Venus day we can image 20-30 percent of the planet at 20-30-m resolution and several percent at 3-5 m resolution. These figures compare favorably to the coverage provided by recent imaging systems orbiting Mars. Our strategy calls for the first cycle of coverage

  11. Methodology for the Incorporation of Passive Component Aging Modeling into the RAVEN/ RELAP-7 Environment

    Energy Technology Data Exchange (ETDEWEB)

    Mandelli, Diego; Rabiti, Cristian; Cogliati, Joshua; Alfonsi, Andrea; Askin Guler; Tunc Aldemir

    2014-11-01

    Passive system, structure and components (SSCs) will degrade over their operation life and this degradation may cause to reduction in the safety margins of a nuclear power plant. In traditional probabilistic risk assessment (PRA) using the event-tree/fault-tree methodology, passive SSC failure rates are generally based on generic plant failure data and the true state of a specific plant is not reflected realistically. To address aging effects of passive SSCs in the traditional PRA methodology [1] does consider physics based models that account for the operating conditions in the plant, however, [1] does not include effects of surveillance/inspection. This paper represents an overall methodology for the incorporation of aging modeling of passive components into the RAVEN/RELAP-7 environment which provides a framework for performing dynamic PRA. Dynamic PRA allows consideration of both epistemic and aleatory uncertainties (including those associated with maintenance activities) in a consistent phenomenological and probabilistic framework and is often needed when there is complex process/hardware/software/firmware/ human interaction [2]. Dynamic PRA has gained attention recently due to difficulties in the traditional PRA modeling of aging effects of passive components using physics based models and also in the modeling of digital instrumentation and control systems. RAVEN (Reactor Analysis and Virtual control Environment) [3] is a software package under development at the Idaho National Laboratory (INL) as an online control logic driver and post-processing tool. It is coupled to the plant transient code RELAP-7 (Reactor Excursion and Leak Analysis Program) also currently under development at INL [3], as well as RELAP 5 [4]. The overall methodology aims to: • Address multiple aging mechanisms involving large number of components in a computational feasible manner where sequencing of events is conditioned on the physical conditions predicted in a simulation

  12. Clinical and pathologic responses of American crows (Corvus brachyrhynchos) and fish crows (C ossifragus) to experimental West Nile virus infection.

    Science.gov (United States)

    Nemeth, N M; Thomsen, B V; Spraker, T R; Benson, J M; Bosco-Lauth, A M; Oesterle, P T; Bright, J M; Muth, J P; Campbell, T W; Gidlewski, T L; Bowen, R A

    2011-11-01

    West Nile virus (WNV)-associated disease has a range of clinical manifestations among avian taxa, the reasons for which are not known. Species susceptibility varies within the avian family Corvidae, with estimated mortality rates ranging from 50 to 100%. We examined and compared virologic, immunologic, pathologic, and clinical responses in 2 corvid species, the American crow (Corvus brachyrhynchos) and the fish crow (C ossifragus), following experimental WNV inoculation. Unlike fish crows, which remained clinically normal throughout the study, American crows succumbed to WNV infection subsequent to dehydration, electrolyte and pH imbalances, and delayed or depressed humoral immune responses concurrent with marked, widespread virus replication. Viral titers were approximately 3,000 times greater in blood and 30,000 to 50,000 times greater in other tissues (eg, pancreas and small intestine) in American crows versus fish crows. Histologic lesion patterns and antigen deposition supported the differing clinical outcomes, with greater severity and distribution of lesions and WNV antigen in American crows. Both crow species had multiorgan necrosis and inflammation, although lesions were more frequent, severe, and widespread in American crows, in which the most commonly affected tissues were small intestine, spleen, and liver. American crows also had inflammation of vessels and nerves in multiple tissues, including heart, kidney, and the gastrointestinal tract. WNV antigen was most commonly observed within monocytes, macrophages, and other cells of the reticuloendothelial system of affected tissues. Collectively, the data support that WNV-infected American crows experience uncontrolled systemic infection leading to multiorgan failure and rapid death.

  13. Residues of chromium, nickel, cadmium and lead in Rook Corvus frugilegus eggshells from urban and rural areas of Poland

    Energy Technology Data Exchange (ETDEWEB)

    Orłowski, Grzegorz, E-mail: orlog@poczta.onet.pl [Institute of Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań (Poland); Kasprzykowski, Zbigniew [Department of Ecology and Nature Protection, Siedlce University of Natural Sciences and Humanities, Prusa 12, 08-110 Siedlce (Poland); Dobicki, Wojciech; Pokorny, Przemysław [Department of Limnology and Fishery, Wrocław University of Environmental and Life Sciences, Chełmońskiego 38C, 51-630 Wrocław (Poland); Wuczyński, Andrzej [Institute of Nature Conservation, Polish Academy of Sciences, Lower-Silesian Field Station, Podwale 75, 50-449 Wrocław (Poland); Polechoński, Ryszard [Department of Limnology and Fishery, Wrocław University of Environmental and Life Sciences, Chełmońskiego 38C, 51-630 Wrocław (Poland); Mazgajski, Tomasz D. [Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, 00-679 Warszawa (Poland)

    2014-08-15

    We examined the concentrations of chromium (Cr), nickel (Ni), cadmium (Cd) and lead (Pb) in Rook Corvus frugilegus eggshells from 43 rookeries situated in rural and urban areas of western (= intensive agriculture) and eastern (= extensive agriculture) Poland. We found small ranges in the overall level of Cr (the difference between the extreme values was 1.8-fold; range of concentrations = 5.21–9.40 Cr ppm), Ni (3.5-fold; 1.15–4.07 Ni ppm), and Cd (2.6-fold; 0.34–0.91 Cd ppm), whereas concentrations of Pb varied markedly, i.e. 6.7-fold between extreme values (1.71–11.53 Pb ppm). Eggshell levels of these four elements did not differ between rural rookeries from western and eastern Poland, but eggshells from rookeries in large/industrial cities had significantly higher concentrations of Cr, Ni and Pb than those from small towns and villages. Our study suggests that female Rooks exhibited an apparent variation in the intensity of trace metal bioaccumulation in their eggshells, that rapid site-dependent bioaccumulation of Cu, Cr, Ni and Pb occurs as a result of the pollution gradient (rural < urban), and that Cd levels are probably regulated physiologically, even though these were relatively high, which could be treated as an overall proxy of a heavy Cd load in the soil environment. - Highlights: • Concentrations of Cr, Ni, Cd and Pb are reported for Rook eggshells from 43 rookeries. • Cr, Ni and Pb levels were significantly higher in urban than in rural areas. • Bioaccumulation of Cr, Ni and Pb suggests a pollution gradient (urban > rural areas). • Females rapidly bioaccumulate Cr, Ni and Pb in breeding areas. • No difference found for Cd levels, which are probably regulated physiologically.

  14. Counting with Colours? Effect of Colours on the Numerical Abilities of House Crows (Corvus splendens) and Common Myna (Acridotheres tristis)

    Science.gov (United States)

    Rahman, Nor Amira Abdul; Ali, Zalila; Zuharah, Wan Fatma; Fadzly, Nik

    2016-01-01

    We conducted several aviary experiments to investigate the influence of colours in quantity judgments of two species of birds; house crow (Corvus splendens) and common myna (Acridotheres tristis). Different quantity (in seven different food proportions) of mealworms were presented nonsequentially to all birds using artificially coloured red mealworms, for experiment 1, and using artificially coloured green mealworms, for experiment 2. Both red and green coloured mealworms have no significant effect on house crow’s quantity judgments (red: ANOVA: F6,30 = 1.748, p = 0.144; and green: ANOVA: F6,30= 1.085, p = 0.394). Common myna, however, showed a strong influence of red colour in their quantity judgment (ANOVA: F6,30 = 2.922, p = 0.023) as they succeeded in choosing the largest amount of food between two cups, but not when offered food using green coloured mealworms (ANOVA: F6,30 = 1.183, p = 0.342). In the next experiment, we hypothesised that both house crow and common myna will prefer red coloured food items over green coloured food items, when factors such as the amount of food is equal. We chose to test red and green colours because both colours play an important role in most avian food selections. Results showed that there were no significant differences in the selection of red or green coloured mealworms for both house crows (ANOVA: F6,30 = 2.310, p = 0.06) and common myna (ANOVA: F6,30 = 0.823, p = 0.561). PMID:27688847

  15. Exploration of the Raven APM-National Adult Reading Test discrepancy as a measure of intellectual decline in older persons.

    Science.gov (United States)

    van den Berg, Esther; Nys, Gudrun M S; Brands, Augustina M A; Ruis, Carla; van Zandvoort, Martine J E; Kessels, Roy P C

    2013-01-01

    Previous studies have shown that the discrepancy between performance on "fluid" and "crystallized" intelligence measures may serve as an indicator for intellectual decline. The validity of this procedure in older persons is unknown. The present study developed a multiple regression equation, to predict the Raven Advanced Progressive Matrices (APM) score from the National Adult Reading Test (NART) score and demographic variables in a large sample of healthy older persons (n = 270). The discrepancy between the predicted and observed Raven APM scores was transformed into a percentile distribution as an indicator of intellectual decline, which can be used in clinical practice. The validity of the procedure was further examined by comparing the proportion of persons with a significant decline (at the -1 and -1.65 SD level) between two older patient samples (87 patients with cerebral stroke and 387 patients with diabetes mellitus) by means of χ(2) tests. There was a significantly higher rate of intellectual decline at the -1 SD ("below average") and -1.65 SD ("impaired") cutoff levels for patients with stroke compared with patients with diabetes (stroke, 34% and 14%; diabetes, 16% and 5%, p < .05). These findings suggest that the Raven APM-NART discrepancy may be a useful measure of intellectual decline in older persons.

  16. SNS ønsker kommentarer om der er oplysninger der ændrer konklusionerne i risikovurderingen. Zea mays (MON863 X MON810). Brev fra Greenpeace til Nationale CAer

    DEFF Research Database (Denmark)

    Kjellsson, Gøsta; Damgaard, Christian; Strandberg, Morten Tune

    2005-01-01

    "DMU har ikke fundet nogen nye oplysninger i Greenpeace kommentarer til MON863 x MON810 majsen, der ændrer vores tidligere risikovurdering (konklusioner refereret i rammenotatet pr. 29.08.2005) for anvendelse til import og videreforarbejdning uden dyrkning. Vi har tidligere kommenteret Greenpeace...

  17. Kernel compositions of glyphosate-tolerant and corn rootworm-protected MON 88017 sweet corn and insect-protected MON 89034 sweet corn are equivalent to that of conventional sweet corn (Zea mays).

    Science.gov (United States)

    Curran, Kassie L; Festa, Adam R; Goddard, Scott D; Harrigan, George G; Taylor, Mary L

    2015-03-25

    Monsanto Co. has developed two sweet corn hybrids, MON 88017 and MON 89034, that contain biotechnology-derived (biotech) traits designed to enhance sustainability and improve agronomic practices. MON 88017 confers benefits of glyphosate tolerance and protection against corn rootworm. MON 89034 provides protection against European corn borer and other lepidopteran insect pests. The purpose of this assessment was to compare the kernel compositions of MON 88017 and MON 89034 sweet corn with that of a conventional control that has a genetic background similar to the biotech sweet corn but does not express the biotechnology-derived traits. The sweet corn samples were grown at five replicated sites in the United States during the 2010 growing season and the conventional hybrid and 17 reference hybrids were grown concurrently to provide an estimate of natural variability for all assessed components. The compositional analysis included proximates, fibers, amino acids, sugars, vitamins, minerals, and selected metabolites. Results highlighted that MON 88017 and MON 89034 sweet corns were compositionally equivalent to the conventional control and that levels of the components essential to the desired properties of sweet corn, such as sugars and vitamins, were more affected by growing environment than the biotech traits. In summary, the benefits of biotech traits can be incorporated into sweet corn with no adverse effects on nutritional quality.

  18. La « faillite » du ciblage monétaire en Tunisie ?

    Directory of Open Access Journals (Sweden)

    Rima Lajnaf

    2014-09-01

    Full Text Available Les monétaristes ont montré que l’accélération de la masse monétaire ne ferait qu’attiser l’inflation. Leur idée a gagné en influence auprès des banques centrales, les incitant dans les années soixante-dix à s’efforcer de mieux maîtriser l’inflation en utilisant les agrégats monétaires comme les variables de leurs objectifs intermédiaires. Cependant, même si l’utilisation des cibles monétaires est répandue dans le monde entier, il n’existe pas de consensus sur la causalité entre la monnaie et les prix. Ce problème a fait l’objet d’un débat très animé entre les économistes surtout durant les trois dernières décennies caractérisées par l’innovation financière. La stratégie de ciblage de l’agrégat monétaire n’est efficace que si ce dernier, considéré comme une cible intermédiaire, possède des propriétés satisfaisantes en termes de stabilité, de contrôlabilité et du contenu en information. Dans ce papier, nous allons étudier l’efficacité de la politique d’ancrage monétaire en Tunisie en analysant les propriétés de l’agrégat M3. Les résultats montrent que le choix de cet agrégat comme un objectif intermédiaire ne semble pas être justifié.

  19. Somatotype and intellectual ability (Raven progressive matrices test in Chilean school-age children

    Directory of Open Access Journals (Sweden)

    Liliana U. Tapia

    2013-10-01

    Full Text Available Objectives: The aim of this study was to determine the relationship between somatotype and intellectual ability (IA in 11-12 and 15-16 year-old students (n = 1,015 in the Chile's Metropolitan Region from a representative sample of 33 educational establishments chosen at random. Methods: The Heath-Carter somatotype and the IA assessed through the Raven Progressive Matrices Test were measured. Results: The endomorph was observed in 59% of the students; 28% had a mesomorph and 13% ectomorph. The IA was distributed in: 11.2% Grade I, 26.8% Grade II, 41% Grade III, 17.6% Grade IV and 3.2% Grade V. A positive and significant correlation of IA with the endo-morphic component (r = 0.074, p = 0.02 was found in the total sample and only in females (r = 0.109, p = 0.02; at the same time, a positive and significant correlation with the ectomorph component was also observed (r = 0.067, p < 0.05. Conclusions: This suggests that other variables would influence more strongly the IA for which further research is needed to quantitate this multifactorial problem.

  20. Somatotype and intellectual ability (Raven Progressive Matrices Test) in Chilean school-age children.

    Science.gov (United States)

    Tapia, Liliana U; Lizana, Pablo A; Orellana, Yasna Z; Villagrán, Francisca S; Arias, Vanessa F; Almagià, Atilio F; Burrows, Raquel A; Ivanovic, Daniza M

    2013-01-01

    Objetivos: El objetivo de este estudio fue determinar la relación entre el somatotipo y la habilidad intelectual (HA) en estudiantes de 11-12 y 15-16 años de edad de la Región Metropolitana, Chile. Métodos: Se registró una muestra representativa de 1.015 escolares de acuerdo a los resultados del sistema de medición de la calidad de la educación (SIMCE) 2009. Se evaluó el somatotipo de Heath-Carter y la HA de acuerdo al Test de Matrices Progresivas de Raven. Resultados: Un 59% presentó un somatotipo endomórfico, 28% mesomórfico y 13% ectomorfo. La HA se distribuyó en: 11,2% Grado I, 26,8% Grado II, 41% Grado III, 17,6% Grado IV y 3,2% Grado V. Se presenta una correlación significativa positiva con el componente endomórfico (r = 0,074 p = 0,02), y sólo en mujeres (r = 0,109 p = 0,02), a la vez se observa una relación significativa positiva con el componente ectomorfo (r = 0,067 p < 0,05). Conclusiones: Esto sugiere que otras variables estarían influyendo más fuertemente en la HA, además de apoyar la no discriminación por biotipo en los establecimientos educacionales.

  1. Relaciones entre los potenciales evocados cognitivos auditivos y el Test de Matrices Progresivas de Raven

    Directory of Open Access Journals (Sweden)

    Miguel de Bortoli

    2002-01-01

    Full Text Available En una muestra de 30 sujetos (12 varones y 18 mujeres se registraron los potenciales evocados endógenos (PEE (cognitivos auditivos y se aplicó el Test de Matrices Progresivas de Raven (TMPR, escala general. Se encontró una correlación entre TMPR y la latencia de P3, la amplitud de P3 y la latencia de N2. Además, se halló una correlación entre el tiempo (T empleado en la ejecución del TMPR y la latencia de P3 y la amplitud de P3. También se encontró una correlación entre P/T y la latencia de P3, la latencia de P2 y la amplitud de P2. No existe correlación entre P y P/T. Los resultados sugieren una fuerte relación entre los PEE y el TMPR. El cociente P/T indicaría eficiencia (igual puntuación en menos tiempo, mayor eficiencia que es un parámetro que complementaría el diagnóstico del TMPR.

  2. Sub-adult Ravens Synchronize their Play: A Case of Emotional Contagion?

    Directory of Open Access Journals (Sweden)

    Mathias Osvath

    2014-05-01

    Full Text Available Emotional contagion – the alignment of emotions between individuals through behavioral synchronization – is proposed as a key, basic component of human social cognition and empathy. In the field of cognitive zoology, contagious behaviors have also received attention. Several such behaviors have been documented in various species. Nevertheless, emotional and behavioral contagion differ. Emotional contagion – a term predominantly used in human psychology – requires that the contagious behavior leads to converging emotional states. In non-linguistic animals, it is difficult to determine whether a behavior “caught” from someone else results in a similar affective state or remains a purely behavioral response. Some studies suggest the latter as a possibility. To disentangle the problem, we explored instances of contagious behaviors within the play domain. In several species, play involves a variety of behaviors falling into different categories: social, object and locomotor play. If a category of play in one individual induces a different category of play in another, this suggests the spread of a generally playful mood rather than a species-specific motor response. Although some studies suggest emotional contagion in mammals, it is not known whether it occurs in birds. We investigated play contagion in a group of ravens, well known for their complex social skills. The results indicate emotional contagion: the birds engaged in all categories of play on a higher level under the condition where contagion was likely to occur.

  3. Statistics of turbulence parameters at Maunakea using the multiple wavefront sensor data of RAVEN

    Science.gov (United States)

    Ono, Yoshito H.; Correia, Carlos M.; Andersen, Dave R.; Lardière, Olivier; Oya, Shin; Akiyama, Masayuki; Jackson, Kate; Bradley, Colin

    2017-03-01

    Prior statistical knowledge of atmospheric turbulence is essential for designing, optimizing and evaluating tomographic adaptive optics systems. We present the statistics of the vertical profiles of C_N^2 and the outer scale at Maunakea estimated using a SLOpe Detection And Ranging (SLODAR) method from on-sky telemetry taken by a multi-object adaptive optics (MOAO) demonstrator, called RAVEN, on the Subaru telescope. In our SLODAR method, the profiles are estimated by fitting the theoretical autocorrelations and cross-correlations of measurements from multiple Shack-Haltmann wavefront sensors to the observed correlations via the non-linear Levenberg-Marquardt Algorithm (LMA). The analytical derivatives of the spatial phase structure function with respect to its parameters for the LMA are also developed. From a total of 12 nights in the summer season, a large ground C_N^2 fraction of 54.3 per cent is found, with median estimated seeing of 0.460 arcsec. This median seeing value is below the results for Maunakea from the literature (0.6-0.7 arcsec). The average C_N^2 profile is in good agreement with results from the literature, except for the ground layer. The median value of the outer scale is 25.5 m and the outer scale is larger at higher altitudes; these trends of the outer scale are consistent with findings in the literature.

  4. Statistics of Turbulence Parameters at Maunakea using multiple wave-front sensor data of RAVEN

    CERN Document Server

    Ono, Yoshito H; Andersen, Dave R; Lardiere, Olivier; Oya, Shin; Akiyama, Masayuki; Jackson, Kate; Bradley, Colin

    2016-01-01

    Prior statistical knowledge of the atmospheric turbulence is essential for designing, optimizing and evaluating tomographic adaptive optics systems. We present the statistics of the vertical profiles of $C_N^2$ and the outer scale at Maunakea estimated using a Slope Detection And Ranging (SLODAR) method from on-sky telemetry taken by RAVEN, which is a MOAO demonstrator in the Subaru telescope. In our SLODAR method, the profiles are estimated by a fit of the theoretical auto- and cross-correlation of measurements from multiple Shack-Haltmann wavefront sensors to the observed correlations via the non-linear Levenberg-Marquardt Algorithm (LMA), and the analytic derivatives of the spatial phase structure function with respect to its parameters for the LMA are also developed. The estimated profile has the median total seeing of 0.460$^{\\prime\\prime}$ and large $C_N^2$ fraction of the ground layer of 54.3%. The $C_N^2$ profile has a good agreement with the result from literatures, except for the ground layer. The m...

  5. Potential perils of peri-Pokémon perambulation: the dark reality of augmented reality?

    Science.gov (United States)

    Joseph, Bellal; Armstrong, David G

    2016-10-01

    Recently, the layering of augmented reality information on top of smartphone applications has created unprecedented user engagement and popularity. One augmented reality-based entertainment application, Pokémon Go (Pokémon Company, Tokyo, Japan) has become the most rapidly downloaded in history. This technology holds tremendous promise to promote ambulatory activity. However, there exists the obvious potential for distraction-related morbidity. We report two cases, presenting simultaneously to our trauma center, with injuries sustained secondary to gameplay with this augmented reality-based application.

  6. Who Is Still Playing Pokémon Go? A Web-Based Survey.

    Science.gov (United States)

    Rasche, Peter; Schlomann, Anna; Mertens, Alexander

    2017-04-05

    Poor physical activity is one of the major health care problems in Western civilizations. Various digital gadgets aiming to increase physical activity, such as activity trackers or fitness apps, have been introduced over recent years. The newest products are serious games that incorporate real-life physical activity into their game concept. Recent studies have shown that such games increase the physical activity of their users over the short term. In this study, we investigated the motivational effects of the digital game "Pokémon Go" leading to continued use or abandonment of the game. The aim of the study was to determine aspects that motivate individuals to play augmented reality exergames and how this motivation can be used to strengthen the initial interest in physical activity. A total of 199 participants completed an open self-selected Web-based survey. On the basis of their self-indicated assignment to one of three predefined user groups (active, former, and nonuser of Pokémon Go), participants answered various questions regarding game experience, physical activity, motivation, and personality as measured by the Big Five Inventory. In total, 81 active, 56 former, and 62 nonusers of Pokémon Go were recruited. When asked about the times they perform physical activity, active users stated that they were less physically active in general than former and nonusers. However, based on a subjective rating, active users were more motivated to be physically active due to playing Pokémon Go. Motivational aspects differed for active and former users, whereas fan status was the same within both groups. Active users are more motivated by features directly related to Pokémon, such as catching all possible Pokémon and reaching higher levels, whereas former users stress the importance of general game quality, such as better augmented reality and more challenges in the game. Personality did not affect whether a person started to play Pokémon Go nor their abandonment of

  7. Evaluation of broiler performance when fed roundup ready wheat event mon 71800, control, and commercial wheat varieties

    NARCIS (Netherlands)

    Kan, C.A.; Hartnell, G.F.

    2004-01-01

    We evaluated the nutritional value of broiler diets containing approximately 40% wheat grain from Roundup Ready wheat (MON 71800), its similar nontransgenic control (MON 71900), or reference commercial wheat varieties. The feeding trial lasted 40 d, and each treatment consisted of 10 replicates of

  8. Compositions of forage and seed from second-generation glyphosate-tolerant soybean MON 89788 and insect-protected soybean MON 87701 from Brazil are equivalent to those of conventional soybean (Glycine max).

    Science.gov (United States)

    Berman, Kristina H; Harrigan, George G; Riordan, Susan G; Nemeth, Margaret A; Hanson, Christy; Smith, Michelle; Sorbet, Roy; Zhu, Eddie; Ridley, William P

    2010-05-26

    Brazil has become one of the largest soybean producers. Two Monsanto Co. biotechnology-derived soybean products are designed to offer benefits in weed and pest management. These are second-generation glyphosate-tolerant soybean, MON 89788, and insect-protected soybean, MON 87701. The second-generation glyphosate-tolerant soybean product, MON 89788, contains the 5-enolpyruvylshikimate-3-phosphate synthase gene derived from Agrobacterium sp. strain CP4 (cp4 epsps). MON 87701 contains the cry1Ac gene and expression of the Cry1Ac protein providing protection from feeding damage caused by certain lepidopteran insect pests. The purpose of this assessment was to determine whether the compositions of seed and forage of MON 89788 and MON 87701 are comparable to those of conventional soybean grown in two geographically and climatically distinct regions in multiple replicated sites in Brazil during the 2007-2008 growing season. Overall, results demonstrated that the seed and forage of MON 89788 and MON 87701 are compositionally equivalent to those of conventional soybean. Strikingly, the results also showed that differences in mean component values of forage and seed from the two controls grown in the different geographical regions were generally greater than that observed in test and control comparisons. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) of compositional data generated on MON 89788, MON 87701, and their respective region-specific controls provide a graphical illustration of how natural variation contributes more than biotechnology-driven genetic modification to compositional variability in soybean. Levels of isoflavones and fatty acids were particularly variable.

  9. Females and males rely on different cortical regions in Raven's Matrices reasoning capacity: evidence from a voxel-based morphometry study.

    Directory of Open Access Journals (Sweden)

    Wenjing Yang

    Full Text Available Raven's Matrices test (RMT is a non-verbal test designed to assess individuals' ability to reason and solve new problems without relying extensively on declarative knowledge derived from schooling or previous experience. Despite a large number of behavioral studies that demonstrated gender differences in Raven's Matrices reasoning ability, no neural evidence supported this difference. In this study, voxel-based morphometry (VBM was used in an attempt to uncover the gender-specific neural basis of Raven's Matrices reasoning ability as measured by the combined Raven's Matrices test (CRT in 370 healthy young adults. The behavioral results showed no difference between males and females. However, the VBM results showed that the relationship between reasoning ability and regional gray matter volume (rGMV differed between sexes. The association between CRT scores and rGMV in the dorsolateral prefrontal cortex (associated with visuospatial ability was significantly greater in males than in females, whereas the reverse was true for the inferior frontal cortex (relating to verbal reasoning ability and the medial frontal cortex (engaged in information binding where the association was greater in females. These findings suggest that males and females use differently structured brains in different ways to achieve similar levels of overall Raven's Matrices reasoning ability.

  10. EFSA Panel on Genetically Modified Organisms (GMO); Scientific Opinion on application (EFSAGMO- NL-2007-39) for the placing on the market of insect resistant and herbicide tolerant genetically modified maize MON89034 x MON88017 for food and feed uses, import and processing under Regulation (EC

    DEFF Research Database (Denmark)

    Sørensen, Ilona Kryspin

    This opinion reports on an evaluation of a risk assessment for placing on the market the genetically modified herbicide tolerant and insect resistant maize MON89034 x MON88017 for food and feed uses, import and processing. Conventional breeding methods were used in the production of maize MON89034...... x MON88017 from inbred lines of the respective parental events. The structural integrity of the inserts in the single events as well as the phenotypes were retained in the hybrid. The expression levels of the Cry1A.105, Cry2Ab2, Cry3Bb1 and CP4 EPSPS proteins in maize MON89034 x MON88017 were...

  11. Naidenõ prjamõje potomki Monõ Lizõ

    Index Scriptorium Estoniae

    2007-01-01

    Itaalia genealoog Domenico Savini väitel on leitud Leonardo da Vinci maali "Mona Lisa" modelli Lisa Gherardini sugulased. Leitud sugulastest Natalia ja Irina Strozzist pikemalt samal leheküljel Sergei Jezuitovi artiklis "Natasha i Ira, pravnutshki Monõ Lizõ"

  12. Reality has always been augmented: Play and the promises of Pokémon GO

    DEFF Research Database (Denmark)

    Sicart, Miguel Angel

    2016-01-01

    that the success of Pokémon GO is the result of the development of a play experience and a computational interface for a reality that is already augmented. These interfaces open new possibilities for digital play in public, but they also raise concerns regarding corporate appropriation of public spaces....

  13. The nova-like variable KQ Mon and the nature of the UX Ursa Majoris stars

    Science.gov (United States)

    Sion, E. M.; Guinan, E. F.

    1982-01-01

    The KQ Mon is a UX UMa type nova-like variable discovered by Howard Bond. Optical spectra taken by Bond in 1978 reveal very shallow Balmer absorption lines and He I absorption. Bond also did UBV and high speed photometry in 1978 and early 1981. There has been no evidence of orbital variations but the appearance of the optical spectrum and the presence of low amplitude flickering suggested a strong similarity to CD-42-14462 (=V3885 Sgr) and other members of the UX UMa class. Low dispersion observations of KQ Mon were made with the International Ultraviolet Explorer satellite. Six spectra taken with the shot wavelength prime camera are dominated by strong broad absorption lines due to N V, O I, Si III, Si IV, C IV, He II, N IV, and Al III. There is little evidence of orbital phase modulation over the time baseline of the observations. Unlike UV observations of other UX UMa type objects, KQ Mon exhibits no emission lines or P Cygni type profiles and the velocity displacements appear to be smaller, suggesting the absence of a hot, high velocity wind characterizing other UX UMa stars. The relationship of KQ Mon to other UX UMa disk stars is discussed and a model is suggested to explain their observed properties and the lack of major outbursts.

  14. Geologic Interpretation of Remote Sensing Data for the Martian Volcano, Ascraeus Mons

    Science.gov (United States)

    Zimbelman, J.; Greeley, R.

    1985-01-01

    Results of an investigation to relate remotely determined physical properties on Ascraeus Mons to the geologic history of the volcano are summarized. Products include a 1:2,000,000-scale photogeologic map of Ascraeus Mons and its environs; a 1:250,000-scale corrected thermal-inertia map of the summit caldera complex; four corrected thermal-inertia profiles across the volcano from high-resolution thermal data; fourteen low-resolution thermal sequences providing corrected thermal inertias for the volcano throughout half a Martian year; and a calibrated three-color photograph of the volcano. These data were combined with published spectral-reflectance, radar, and atmospheric water-vapor data relating to Acraeus Mons. Photogeologic mapping indicates that the sequence of events at Acraeus Mons is more complex than previously described. The plains surrounding the volcano include numerous flows, some of which can be traced to the flank of the volcano and some to different locations along the Tharsis Ridge. Surface morphology in the summit area is very distinct for features 100 m in scale, but the surface relief and tonal contrast steadily decrease toward the base of the shield, indicating modification by deposition or erosion.

  15. Magellan computer-simulated view of Gula Mons on the surface of Venus

    Science.gov (United States)

    1991-01-01

    Gula Mons is displayed in this computer-simulated view of the surface of Venus. The viewpoint is located 110 kilometers (68 miles) southwest of Gula Mons at the same elevation as the summit, 3 kilometers (1.9 miles) above Eistla Regio. Lava flows extend for hundreds of kilometers across the fractured plains. The view is to the northeast with Gula Mons appearing at the center of the image. Gula Mons, a 3 kilometer (1.9 mile) high volcano, is located at approximately 22 degrees north latitude, 359 degrees east longitude in western Eistla Regio. Magellan synthetic aperture radar data is combined with radar altimetry to produce a three-dimensional (3D) map of the surface. Rays cast in a computer intersect the surface to create a 3D perspective view. Simulated color and a digital elevation map developed by the United States (U.S.) Geological Survey are used to enhance small-scale structure. The simulated hues are based on color images recorded by the Soviet Venera 13 and 14 spacecraft. The

  16. Pokémon GO: Implications for Literacy in the Classroom

    Science.gov (United States)

    Howell, Emily

    2017-01-01

    This teaching tip gives teachers practical applications of the game Pokémon GO for literacy teaching and learning. The author discusses applications of the game for teaching multimodality in upper elementary-school classrooms. The author situates these applications in relevant theoretical perspectives as well as current literacy research.

  17. Spectral analysis of Ahuna Mons from Dawn mission's visible-infrared spectrometer

    Science.gov (United States)

    Zambon, F.; Raponi, A.; Tosi, F.; De Sanctis, M. C.; McFadden, L. A.; Carrozzo, F. G.; Longobardo, A.; Ciarniello, M.; Krohn, K.; Stephan, K.; Palomba, E.; Pieters, C. M.; Ammannito, E.; Russell, C. T.; Raymond, C. A.

    2017-01-01

    Ahuna Mons is the highest mountain on Ceres. A unique complex in terms of size, shape, and morphology, Ahuna is bordered by flanks of the talus around its summit. Recent work by Ruesch et al. based on Dawn's Framing Camera images shed light on the possible origin of Ahuna Mons. According to Ruesch et al. (2016), Ahuna Mons is formed by a volcanic process involving the ascent of cryomagma and extrusion onto the surface followed by dome development and subsequent spreading. Here we analyzed in detail the composition of Ahuna Mons, using data acquired by the visible and infrared spectrometer aboard Dawn. The spectral analysis reveals a relatively high abundance of carbonates and a nonhomogeneous variation in carbonate composition and abundance along Ahuna's flanks, associated with a lower amount of the Ceres's ubiquitous NH4-phyllosilicates over a large portion of the flanks. The grain size is coarser on the flanks than in the surrounding regions, suggesting the presence of fresher material, also compatible with a larger abundance of carbonates. Thermal variations are seen in Ahuna, supporting the evidence of different compactness of the surface regolith in specific locations. Results of the spectral analysis are consistent with a possible cryovolcanic origin which exposed fresher material that slid down on the flanks.

  18. Naidenõ prjamõje potomki Monõ Lizõ

    Index Scriptorium Estoniae

    2007-01-01

    Itaalia genealoog Domenico Savini väitel on leitud Leonardo da Vinci maali "Mona Lisa" modelli Lisa Gherardini sugulased. Leitud sugulastest Natalia ja Irina Strozzist pikemalt samal leheküljel Sergei Jezuitovi artiklis "Natasha i Ira, pravnutshki Monõ Lizõ"

  19. Influence of Pokémon Go on Physical Activity: Study and Implications.

    Science.gov (United States)

    Althoff, Tim; White, Ryen W; Horvitz, Eric

    2016-12-06

    Physical activity helps people maintain a healthy weight and reduces the risk for several chronic diseases. Although this knowledge is widely recognized, adults and children in many countries around the world do not get recommended amounts of physical activity. Although many interventions are found to be ineffective at increasing physical activity or reaching inactive populations, there have been anecdotal reports of increased physical activity due to novel mobile games that embed game play in the physical world. The most recent and salient example of such a game is Pokémon Go, which has reportedly reached tens of millions of users in the United States and worldwide. The objective of this study was to quantify the impact of Pokémon Go on physical activity. We study the effect of Pokémon Go on physical activity through a combination of signals from large-scale corpora of wearable sensor data and search engine logs for 32,000 Microsoft Band users over a period of 3 months. Pokémon Go players are identified through search engine queries and physical activity is measured through accelerometers. We find that Pokémon Go leads to significant increases in physical activity over a period of 30 days, with particularly engaged users (ie, those making multiple search queries for details about game usage) increasing their activity by 1473 steps a day on average, a more than 25% increase compared with their prior activity level (PGo has added a total of 144 billion steps to US physical activity. Furthermore, Pokémon Go has been able to increase physical activity across men and women of all ages, weight status, and prior activity levels showing this form of game leads to increases in physical activity with significant implications for public health. In particular, we find that Pokémon Go is able to reach low activity populations, whereas all 4 leading mobile health apps studied in this work largely draw from an already very active population. Mobile apps combining game

  20. Effects of spider Macrothele raven venom on cell proliferation and cytotoxicity in HeLa cells

    Institute of Scientific and Technical Information of China (English)

    Li GAO; Bao-en SHAN; Jing CHEN; Jiang-hui LIU; Da-xiang SONG; Bao-cheng ZHU

    2005-01-01

    Aim: To examine the effect of venom from the spider Macrothele raven on cell proliferation and cytotoxicity in human cervical carcinoma, HeLa cells. Methods:Morphological and biochemical signs of apoptosis appeared using acridine orange-ethidium bromide (AO/EB) staining. Marked morphological changes in HeLa cells after treatment with spider venom were observed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Cell proliferation and cytotoxicity were determined by [methyl-3H] thymidine assay ([3H]TdR) and lactate dehydrogenase (LDH) release, respectively. DNA fragmentation and cell cycle distribution were monitored using flow cytometry. In addition, Western blot analysis was used to evaluate the level of caspase-3 expression. In vivo examination of the inhibition of the size of tumors in nude mice treated with spider venom was measured. Results: Marked morphological changes were observed using AO/EB staining, SEM and TEM assay. Spider venom at concentrations of 10-40 mg/L caused dose- and time-dependent inhibition of HeLa cell proliferation.The ratio of apoptosis and necrosis increased. The activity of caspase-3 was upregulated after spider venom treatment. In vivo study of tumor size revealed that tumors significantly decreased in size from controls to tumors treated for 3 weeks with spider venom (P<0.05). Conclusion: The inhibition of HeLa cells by the venom of the spider Macrothele raveni was carried out in three ways: induction of apoptosis, necrosis of toxicity damage and direct lysis. Spider venom is a novel anti-tumor material both in vitro and in vivo.

  1. Displacive phase transition, structural stability, and mechanical properties of the ultra-incompressible and hard MoN by first principles

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, Erjun [State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun (China); Graduate School, Chinese Academy of Sciences, Beijing (China); Wang, Jinping [Department of Applied Chemistry, Qingdao Agricultural University, Qingdao (China); Wu, Zhijian [State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun (China)

    2010-05-15

    The structural stability, electronic, and mechanical properties of MoN were investigated by use of the density functional theory. Nine structures were considered, i.e., hexagonal {delta}{sub 1}-MoN, {delta}{sub 2}-MoN, {delta}'{sub 2}-MoN, {delta}{sub 3}-MoN, {delta}{sub 4}-MoN, and wurtzite ZnS structures, cubic NaCl, zincblende, and CsCl structures. The calculated results indicated that {delta}{sub 3}-MoN is the ground state among the considered structures. The second-order displacive phase transition has been found from {delta}{sub 3}-MoN to {delta}'{sub 2}-MoN with increase in pressure, in agreement with the experimental observation. {delta}'{sub 2}-MoN has the largest calculated bulk and shear moduli among the considered structures, followed by {delta}{sub 3}-MoN. The estimated hardness of {delta}'{sub 2}-MoN and {delta}{sub 3}-MoN is 34 and 29 GPa, respectively. Both of them are thermodynamically and mechanically stable. The compressibility along the c-axis for both compounds is smaller than that for diamond and cubic boron nitride (c-BN). The ideal strengths of {delta}'{sub 2}-MoN were discussed. The stress-strain relationship for {delta}'{sub 2}-MoN shows that the ideal tensile strength of 107.0 GPa along the left angle 0001 right angle direction is very large, which might have potential technological and industrial applications. (Abstract Copyright [2010], Wiley Periodicals, Inc.)

  2. Conceptual model for the origin of the Olympus Mons cliffs, Mars: An essential influence of water?

    Science.gov (United States)

    De Blasio, Fabio Vittorio

    2012-08-01

    With a height of 21 km above the mean Martian altitude and a diameter of 600 km, the Olympus Mons of Mars is the highest and one of the largest volcanoes in the Solar System. It is a distinctive shield volcano, formed by stacked sequences of low-viscosity magma. Whereas the central part of the Olympus Mons exhibits slope angles of less than 1-5°, the periphery of the edifice terminates with steep cliffs sloping 12-15° up to 28°. Another remarkable feature is the aureole, a chain of crown-like deposits surrounding the edifice of Olympus Mons from an average distance of 400 km. The aureole deposits, which lack any obvious analogue on the Earth, have been variously interpreted as volcanic products, pyroclastic or ash flows, slow deep-seated deformation, or catastrophic landslides. Numerical simulations and a comparative study of similar volcanic structures on Earth suggest that a volcanic edifice with the characteristics of Olympus Mons cannot be formed without the presence of water at the base. Because of the low cooling rate of lava in sub-aerial conditions, the superposition of purely subaerial lava flows would contribute with gentle slope to the topography. In contrast, the presence of a medium like water increases the convective heat exchange rate by nearly three orders of magnitude, thus stopping the lava flow and causing a slope increase at the borders of the edifice, which subsequently collapses. A model for the evolution of the Olympus Mons is consequently suggested in analogy with the Canary and the Hawaii island on Earth.

  3. MGS-TES thermal inertia study of the Arsia Mons Caldera

    Science.gov (United States)

    Cushing, G.E.; Titus, T.N.

    2008-01-01

    Temperatures of the Arsia Mons caldera floor and two nearby control areas were obtained by the Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES). These observations revealed that the Arsia Mons caldera floor exhibits thermal behavior different from the surrounding Tharsis region when compared with thermal models. Our technique compares modeled and observed data to determine best fit values of thermal inertia, layer depth, and albedo. Best fit modeled values are accurate in the two control regions, but those in the Arsia Mons' caldera are consistently either up to 15 K warmer than afternoon observations, or have albedo values that are more than two standard deviations higher than the observed mean. Models of both homogeneous and layered (such as dust over bedrock) cases were compared, with layered-cases indicating a surface layer at least thick enough to insulate itself from diurnal effects of an underlying substrate material. Because best fit models of the caldera floor poorly match observations, it is likely that the caldera floor experiences some physical process not incorporated into our thermal model. Even on Mars, Arsia Mons is an extreme environment where CO2 condenses upon the caldera floor every night, diurnal temperatures range each day by a factor of nearly 2, and annual average atmospheric pressure is only around one millibar. Here, we explore several possibilities that may explain the poor modeled fits to caldera floor and conclude that temperature dependent thermal conductivity may cause thermal inertia to vary diurnally, and this effect may be exaggerated by presence of water-ice clouds, which occur frequently above Arsia Mons. Copyright 2008 by the American Geophysical Union.

  4. VizieR Online Data Catalog: V899 Mon long-term monitoring (Ninan+, 2015)

    Science.gov (United States)

    Ninan, J. P.; Ojha, D. K.; Baug, T.; Bhatt, B. C.; Mohan, V.; Ghosh, S. K.; Men'shchikov, A.; Anupama, G. C.; Tamura, M.; Henning, Th.

    2016-03-01

    Our long-term optical monitoring of V899 Mon started on 2009 November 30. The observations were carried out using the 2m Himalayan Chandra Telescope (HCT) at the Indian Astronomical Observatory, Hanle (Ladakh), belonging to the Indian Institute of Astrophysics (IIA), India, and the 2m telescope at the IUCAA (Inter-University Centre for Astronomy and Astrophysics) Girawali Observatory (IGO), Girawali (Pune), India. Near-infrared (NIR) photometric monitoring of the source in J, H, and K/KS bands was carried out using the HCT NIR camera (NIRCAM), the TIFR Near Infrared Spectrometer and Imager (TIRSPEC) mounted on HCT, and the TIFR Near Infrared Imaging Camera-II (TIRCAM2) mounted on the IGO telescope. Our medium-resolution (R~1000) optical spectroscopic monitoring of V899 Mon also started on 2009 November 30. The spectroscopic observations were carried out using both HCT/HFOSC and IGO/IFOSC. These observations were done in the effective wavelength range of 3700-9000Å. We acquired a high-resolution (R~37000) spectrum of V899 Mon during its second outburst phase on 2014 December 22 using the Southern African Large Telescope High Resolution Spectrograph (SALT-HRS). NIR (1.02-2.35um) spectroscopic monitoring of V899 Mon started on 2013 September 25 using TIRSPEC mounted on HCT. Continuum interferometric observation of V899 Mon at 1280MHz with 33.3MHz bandwidth was carried out on 2014 October 17 using the Giant Metrewave Radio Telescope (GMRT), Pune, India. (3 data files).

  5. Test de matrices progresivas de Raven: construcción de baremos y constatación del "efecto Flynn"

    OpenAIRE

    2002-01-01

    En este trabajo se presentan los baremos del Test de Matrices Progresivas de Raven, Escala General y Escala Avanzada, Serie II, para la población estudiantil (Tercer ciclo EGB y Polimodal) de la ciudad de La Plata. Se hacen consideraciones sobre el incremento de puntajes (efecto Flynn)que se observa respecto del baremo anterior (1964); sobre las diferencias de las puntuaciones medias según dos grupos etareos (13-16 y 17-18 años) y según modalidad educativa. Los resultados encontrados permiten...

  6. UAV-UGV collaboration with a PackBot UGV and Raven SUAV for pursuit and tracking of a dynamic target

    Science.gov (United States)

    Cheung, Carol; Grocholsky, Benjamin

    2008-04-01

    Fielded military unmanned systems are currently extending the reach of the U.S. forces in surveillance and reconnaissance missions. Providing long-range eyes on enemy operations, unmanned aerial vehicles (UAVs), such as the AeroVironment Raven, have proven themselves indispensable without risking soldiers' lives. Meanwhile, unmanned ground vehicles (UGVs), such as the iRobot PackBot, are quickly joining ranks in Explosive Ordnance Disposal (EOD) missions to identify and dispose of ordnance or to clear roads and buildings. UAV-UGV collaboration and the benefit of force multiplication is increasingly more tangible. iRobot Corporation and CMU Robotics Institute are developing the capability to simultaneously control the Raven small UAV (SUAV) and PackBot UGV from a single operator control unit (OCU) via waypoint navigation. Techniques to support autonomous collaboration for pursuing and tracking a dismounted soldier will be developed and integrated on a Raven-PackBot team. The Raven will survey an area and geolocate an operator-selected target. The Raven will share this target location with the PackBot and together they will collaboratively pursue the target intelligently to maintain track on the target. We will accomplish this goal by implementing a decentralized control and data fusion software architecture. The PackBot will be equipped with on-board waypoint navigation algorithms, a Navigator Payload containing a stereo-vision system, GPS, and a high-accuracy IMU. The Raven will have two on-board cameras, a side-looking and a forward-looking optical camera. The Supervisor OCU will act as the central mission planner, allowing the operator to monitor mission events and override vehicle tasks.

  7. Genetic, serological and biochemical characterization of Leishmania tropica from foci in northern Palestine and discovery of zymodeme MON-307

    Directory of Open Access Journals (Sweden)

    Azmi Kifaya

    2012-06-01

    Full Text Available Abstract Background Many cases of cutaneous leishmaniasis (CL have been recorded in the Jenin District based on their clinical appearance. Here, their parasites have been characterized in depth. Methods Leishmanial parasites isolated from 12 human cases of CL from the Jenin District were cultured as promastigotes, whose DNA was extracted. The ITS1 sequence and the 7SL RNA gene were analysed as was the kinetoplast minicircle DNA (kDNA sequence. Excreted factor (EF serotyping and multilocus enzyme electrophoresis (MLEE were also applied. Results This extensive characterization identified the strains as Leishmania tropica of two very distinct sub-types that parallel the two sub-groups discerned by multilocus microsatellite typing (MLMT done previously. A high degree of congruity was displayed among the results generated by the different analytical methods that had examined various cellular components and exposed intra-specific heterogeneity among the 12 strains. Three of the ten strains subjected to MLEE constituted a new zymodeme, zymodeme MON-307, and seven belonged to the known zymodeme MON-137. Ten of the 15 enzymes in the profile of zymodeme MON-307 displayed different electrophoretic mobilities compared with the enzyme profile of the zymodeme MON-137. The closest profile to that of zymodeme MON-307 was that of the zymodeme MON-76 known from Syria. Strains of the zymodeme MON-307 were EF sub-serotype A2 and those of the zymodeme MON-137 were either A9 or A9B4. The sub-serotype B4 component appears, so far, to be unique to some strains of L. tropica of zymodeme MON-137. Strains of the zymodeme MON-137 displayed a distinctive fragment of 417 bp that was absent in those of zymodeme MON-307 when their kDNA was digested with the endonuclease RsaI. kDNA-RFLP after digestion with the endonuclease MboI facilitated a further level of differentiation that partially coincided with the geographical distribution of the human cases from which the strains

  8. Test de Raven: estudio sobre la confiabilidad del uso de la escala paralela en sujetos de la ciudad de La Plata, Argentina

    OpenAIRE

    Rossi Casé, Lilia Elba; Doná, Stella Maris; Garzaniti, Ramiro

    2015-01-01

    Se presenta el análisis de los resultados obtenidos al estudiar la confiabilidad en el uso de la Escala Paralela del Test de Raven, como forma alternativa de la Escala General. Por el constructo a medir, el diseño del instrumento, su confiabilidad y validez, el Test de Matrices Progresivas de Raven es uno de los instrumentos más difundidos y utilizados a nivel mundial. El Test mide la capacidad intelectual para educir relaciones. De manera reglada, asigna un número a la habilidad de los...

  9. Compositional analysis of grain and forage from MON 87427, an inducible male sterile and tissue selective glyphosate-tolerant maize product for hybrid seed production.

    Science.gov (United States)

    Venkatesh, Tyamagondlu V; Breeze, Matthew L; Liu, Kang; Harrigan, George G; Culler, Angela H

    2014-02-26

    Conventional maize hybrid seed production has historically relied upon detasseling using either manual methods or semiautomated processes to ensure the purity of the hybrid cross. Monsanto Co. has developed biotechnology-derived MON 87427 maize with tissue-selective glyphosate tolerance to facilitate the production of hybrid maize seed. MON 87427 utilizes a specific promoter and intron combination to drive expression of CP4 EPSPS protein in vegetative and female reproductive tissues, conferring tolerance to glyphosate. This specific combination of regulatory elements also results in limited or no production of CP4 EPSPS protein in two key male reproductive tissues: pollen microspores, which develop into pollen grains, and tapetum cells that supply nutrients to the pollen. Thus, MON 87427 induces a male sterile phenotype after appropriately timed glyphosate applications. To confer additional benefits of herbicide tolerance and/or insect resistance, MON 87427 was combined with MON 89034 and NK603 by conventional breeding to develop MON 87427 × MON 89034 × NK603. The work described here is an assessment of the nutrient, antinutrient, and secondary metabolite levels in grain and forage tissues of MON 87427 and MON 87427 × MON 89034 × NK603. Results demonstrated that MON 87427 is compositionally equivalent to a near-isogenic conventional comparator. Results from this analysis established that the compositional equivalence observed for the single-event product MON 87427 is extendable to the combined-trait product, MON 87427 × MON 89034 × NK603. With increasing global demand for food production, the development of more efficient seed production strategies is important to sustainable agriculture. The study reported here demonstrated that biotechnology can be applied to simplify hybrid maize seed production without affecting crop composition.

  10. The RAVEN toolbox and its use for generating a genome-scale metabolic model for Penicillium chrysogenum.

    Science.gov (United States)

    Agren, Rasmus; Liu, Liming; Shoaie, Saeed; Vongsangnak, Wanwipa; Nookaew, Intawat; Nielsen, Jens

    2013-01-01

    We present the RAVEN (Reconstruction, Analysis and Visualization of Metabolic Networks) Toolbox: a software suite that allows for semi-automated reconstruction of genome-scale models. It makes use of published models and/or the KEGG database, coupled with extensive gap-filling and quality control features. The software suite also contains methods for visualizing simulation results and omics data, as well as a range of methods for performing simulations and analyzing the results. The software is a useful tool for system-wide data analysis in a metabolic context and for streamlined reconstruction of metabolic networks based on protein homology. The RAVEN Toolbox workflow was applied in order to reconstruct a genome-scale metabolic model for the important microbial cell factory Penicillium chrysogenum Wisconsin54-1255. The model was validated in a bibliomic study of in total 440 references, and it comprises 1471 unique biochemical reactions and 1006 ORFs. It was then used to study the roles of ATP and NADPH in the biosynthesis of penicillin, and to identify potential metabolic engineering targets for maximization of penicillin production.

  11. Cluster Glimpses with Raven: AO Corrected Near and Mid-Infrared Images of Glimpse C01 and Glimpse C02

    CERN Document Server

    Davidge, T J; Lardiere, O; Bradley, C; Blain, C; Oya, S; Terada, H; Hayano, Y; Lamb, M; Akiyama, M; Ono, Y H; Suzuki, G

    2016-01-01

    We discuss images of the star clusters GLIMPSE C01 (GC01) and GLIMPSE C02 (GC02) that were recorded with the Subaru IRCS. Distortions in the wavefront were corrected with the RAVEN adaptive optics (AO) science demonstrator, allowing individual stars in the central regions of both clusters -- where the fractional contamination from non-cluster objects is lowest -- to be imaged. In addition to J, H, and K' images, both clusters were observed through a narrow-band filter centered near 3.05um; GC01 was also observed through two other narrow-band filters that sample longer wavelengths. Stars in the narrow-band images have a FWHM that is close to the telescope diffraction limit, demonstrating that open loop AO systems like RAVEN can deliver exceptional image quality. The near-infrared color magnitude diagram of GC01 is smeared by non-uniform extinction with a dispersion +/- 0.13 magnitudes in A_K. The Red Clump is identified in the K luminosity function (LF) of GC01, and a distance modulus of 13.6 is found. The K L...

  12. The RAVEN toolbox and its use for generating a genome-scale metabolic model for Penicillium chrysogenum.

    Directory of Open Access Journals (Sweden)

    Rasmus Agren

    Full Text Available We present the RAVEN (Reconstruction, Analysis and Visualization of Metabolic Networks Toolbox: a software suite that allows for semi-automated reconstruction of genome-scale models. It makes use of published models and/or the KEGG database, coupled with extensive gap-filling and quality control features. The software suite also contains methods for visualizing simulation results and omics data, as well as a range of methods for performing simulations and analyzing the results. The software is a useful tool for system-wide data analysis in a metabolic context and for streamlined reconstruction of metabolic networks based on protein homology. The RAVEN Toolbox workflow was applied in order to reconstruct a genome-scale metabolic model for the important microbial cell factory Penicillium chrysogenum Wisconsin54-1255. The model was validated in a bibliomic study of in total 440 references, and it comprises 1471 unique biochemical reactions and 1006 ORFs. It was then used to study the roles of ATP and NADPH in the biosynthesis of penicillin, and to identify potential metabolic engineering targets for maximization of penicillin production.

  13. Report of the SocMon capacity development workshop for the Bay of Bengal Large Marine Ecosystem countries in South Asia, St Martin's Island, Bangladesh, 2-11 January, 2015

    OpenAIRE

    Hoon, V.; Saleem, M.; Townsley, P.

    2015-01-01

    Socio-economic Monitoring (SocMon) is an approach and set of tools for conducting socio-economic monitoring of changes in coastal communities. Planned outputs of the workshop included: training of local staff i SocMon methodologies; draft a SocMon report for St. Martin's Island; a workplan for implementing the SocMon; a communication strategy; and key inputs to a regional SocMon strategy

  14. Assessing the potential for interaction between the insecticidal activity of two genetically engineered cotton events combined by conventional breeding: An example with COT102 × MON 15985.

    Science.gov (United States)

    Levine, Steven L; Mueller, Geoffrey M; Uffman, Joshua P

    2016-08-01

    Bollgard(®) III was developed by combining cotton events COT102 and MON 15985 through conventional breeding to improve efficacy against lepidopteran feeding damage. COT102 produces the Vip3Aa19 protein and MON 15985 produces the Cry1Ac and Cry2Ab2 proteins. COT102 × MON 15985 has also been bred with Roundup Ready Flex(®) cotton (MON 88913) that confers glyphosate tolerance. This study evaluated the activity of COT102 and MON 15985 and the combined activity of COT102 and MON 15985 against the cotton bollworm (CBW, Helicoverpa zea). COT102, MON 15985, COT102 × MON 15985 and COT102 × MON 15985 × MON 88913 have comparable Vip3Aa19 and/or Cry1Ac, Cry2Ab2 protein expression levels as determined by enzyme-linked immunosorbent assay. CBW demonstrated concentration-dependent growth inhibition after 7-days of feeding on lyophilized leaf tissue derived from COT102, MON 15985, COT102 × MON 15985 and COT102 × MON 15985 × MON 88913 incorporated into an artificial diet. Observed EC50 values for COT102 × MON 15985 and COT102 × MON 15985 × MON 88913 were comparable (≤4% deviation) with the predicted EC50 value under the assumption of additivity using the combined activity of COT102 and MON 15985. No interaction in biological activity between COT102 and MON 15985 is consistent with results from competition and ligand blotting assays that demonstrated that Vip3Aa does not inhibit the binding of either Cry1Ac or Cry2Ab2 and vice versa. The results from this study demonstrate that the activity of COT102 × MON 15985 against CBW is consistent with predictions of additivity.

  15. KQ Mon and the nature of the UX Ursa Majoris Nova-like variables

    Science.gov (United States)

    Sion, E. M.; Guinan, E. F.

    1983-01-01

    The UX Ursa Majoris stars form a group of nova-like variables with common photometric and spectroscopic properties. These objects appear to be related to the cataclysmic variables. However, there is no information that they have undergone major outbursts. The present investigation is concerned with a new object, KQ Mon, which has been included in a program of study conducted with the IUE satellite. A description of observations of KQ Mon is presented, and the relationship of this star to other UX UMa stars is examined. Attention is given to the nature of the UX Ursa Majoris stars. It is argued that the accretion rates of the UX UMa stars are higher than, for example, the dwarf novae during quiescence and that the higher accretion rates of the UX UMa stars are responsible for their lack of major outbursts.

  16. Hubble COS Spectroscopy of the Dwarf Nova CW Mon: The White Dwarf in Quiescence?

    Science.gov (United States)

    Hause, Connor; Sion, Edward M.; Godon, Patrick; Gänsicke, Boris T.; Szkody, Paula; de Martino, Domitilla; Pala, Anna

    2017-08-01

    We present a synthetic spectral analysis of the HST COS spectrum of the U Geminorum-type dwarf nova CW Mon, taken during quiescence as part of our COS survey of accreting white dwarfs (WDs) in Cataclysmic Variables. We use a synthetic photosphere and optically thick accretion disk spectra to model the COS spectrum as well as archival IUE spectra obtained decades ago, when the system was in an even deeper quiescent state. Assuming a reddening of E(B-V) = 0.06, an inclination of 60° (CW Mon has eclipses of the accretion disk), and a WD mass of 0.8 {M}⊙ , our results indicate the presence of a 22-27,000 K WD and a low mass accretion rate \\dot{M}≲ {10}-10 {M}⊙ {{yr}}-1, for a derived distance of ˜200 to ˜300 pc. Based on observations made with the NASA-Hubble Space Telescope.

  17. Multikultūrinės komandos darbo gerinimas įmonėse

    OpenAIRE

    Lalienė, Rasa

    2008-01-01

    Dėl galimybės laisvai judėti tarp šalių, labai išaugo darbo jėgos judėjimas. Tad multikultūrinė komanda įmonėse tampa įprastu reiškiniu pastaraisiais metais. Šiame darbe nagrinėjama problematika yra susijusi su skirtingų kultūrų sandūra įmonių viduje. Analizuojamos komandinio darbo sritys, kuriose daugiakultūriškumas sukelia daugiau problemų, aptariami vadovų vaidmenys, susiję su tų problemų sprendimu. Pagrindinis šio darbo tikslas – pateikti įmonėms darbo multikultūrėse komandose gerinim...

  18. Wear-time recording during early Class III facemask treatment using TheraMon chip technology.

    Science.gov (United States)

    Stocker, Bruce; Willmann, Jan H; Wilmes, Benedict; Vasudavan, Sivabalan; Drescher, Dieter

    2016-09-01

    Successful intervention in a developing Class III malocclusion with facemask protraction therapy depends on a patient's ability to adhere to the recommendations for duration of appliance wear. In this article, we report the introduction of a novel approach for tracking of the duration of application of a protraction facemask, with the incorporation of a "FaceMon" sensor (TheraMon, microelectronic system; MC Technology GmbH, Hargelsberg, Austria) to track wear time. A 9-year-old boy with a Class III malocclusion was successfully treated with a modified alternate rapid maxillary expansion and constriction protocol and intermittent application of a hybrid hyrax-protraction facemask combination. The average duration of wear of the facemask was measured at 10.8 hours per day. The use of an objective measuring device may have implications for the development of treatment strategies, since patient responses may be able to calibrated in relation to compliance.

  19. MonALISA: An agent based, dynamic service system to monitor, control and optimize distributed systems

    Science.gov (United States)

    Legrand, I.; Newman, H.; Voicu, R.; Cirstoiu, C.; Grigoras, C.; Dobre, C.; Muraru, A.; Costan, A.; Dediu, M.; Stratan, C.

    2009-12-01

    The MonALISA (Monitoring Agents in a Large Integrated Services Architecture) framework provides a set of distributed services for monitoring, control, management and global optimization for large scale distributed systems. It is based on an ensemble of autonomous, multi-threaded, agent-based subsystems which are registered as dynamic services. They can be automatically discovered and used by other services or clients. The distributed agents can collaborate and cooperate in performing a wide range of management, control and global optimization tasks using real time monitoring information. Program summaryProgram title: MonALISA Catalogue identifier: AEEZ_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEEZ_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: Caltech License - free for all non-commercial activities No. of lines in distributed program, including test data, etc.: 147 802 No. of bytes in distributed program, including test data, etc.: 2 5913 689 Distribution format: tar.gz Programming language: Java, additional APIs available in Java, C, C++, Perl and python Computer: Computing Clusters, Network Devices, Storage Systems, Large scale data intensive applications Operating system: The MonALISA service is mainly used in Linux, the MonALISA client runs on all major platforms (Windows, Linux, Solaris, MacOS). Has the code been vectorized or parallelized?: It is a multithreaded application. It will efficiently use all the available processors. RAM: for the MonALISA service the minimum required memory is 64 MB; if the JVM is started allocating more memory this will be used for internal caching. The MonALISA client requires typically 256-512 MB of memory. Classification: 6.5 External routines: Requires Java: JRE or JDK to run. These external packages are used (they are included in the distribution): JINI, JFreeChart, PostgreSQL (optional). Nature of problem: To monitor and control

  20. A Comparison and Analog-Based Analysis of Sinuous Channels on the Rift Aprons of Ascraeus Mons and Pavonis Mons Volcanoes, Mars

    Science.gov (United States)

    Collins, A.; de Wet, A.; Bleacher, J.; Schierl, Z.; Schwans, B.

    2012-01-01

    The origin of sinuous channels on the flanks of the Tharsis volcanoes on Mars is debated among planetary scientists. Some argue a volcanic genesis [1] while others have suggested a fluvial basis [2-4]. The majority of the studies thus far have focused on channels on the rift apron of Ascraeus Mons. Here, however, we broadly examine the channels on the rift apron of Pavonis Mons and compare them with those studied channels around Ascraeus. We compare the morphologies of features from both of these volcanoes with similar features of known volcanic origin on the island of Hawai i. We show that the morphologies between these two volcanoes in the Tharsis province are very similar and were likely formed by comparable processes, as previous authors have suggested [5]. We show that, although the morphologies of many of the channels around these volcanoes show some parallels to terrestrial fluvial systems, these morphologies can also be formed by volcanic processes. The context of these features suggests that volcanic processes were the more likely cause of these channels.

  1. Point defects stabilise cubic Mo-N and Ta-N

    Science.gov (United States)

    Koutná, Nikola; Holec, David; Svoboda, Ondřej; Klimashin, Fedor F.; Mayrhofer, Paul H.

    2016-09-01

    We employ ab initio calculations to investigate energetics of point defects in metastable rocksalt cubic Ta-N and Mo-N. Our results reveal a strong tendency to off-stoichiometry, i.e. defected structures are surprisingly predicted to be more stable than perfect ones with 1:1 metal-to-nitrogen stoichiometry. Despite the similarity of Ta-N and Mo-N systems in exhibiting this unusual behaviour, we also point out their crucial differences. While Ta-N significantly favours metal vacancies, Mo-N exhibits similar energies of formation regardless of the vacancy type (V Mo, V N) as long as their concentration is below ≈ 15~\\text{at}. % . The overall lowest energies of formation were obtained for \\text{T}{{\\text{a}}0.78}\\text{N} and \\text{M}{{\\text{o}}0.91}\\text{N} , which are hence predicted to be the most stable compositions. To account for various experimental conditions during synthesis, we further evaluated the phase stability as a function of chemical potential of individual species. The proposed phase diagrams reveal four stable compositions, \\text{M}{{\\text{o}}0.84}\\text{N} , \\text{M}{{\\text{o}}0.91}\\text{N} , \\text{Mo}{{\\text{N}}0.69} and \\text{Mo}{{\\text{N}}0.44} , in the case of Mo-N and nine stable compositions in the case of Ta-N indicating the important role of metal under-stoichiometry, since \\text{T}{{\\text{a}}0.75}\\text{N} and \\text{T}{{\\text{a}}0.78}\\text{N} significantly dominate the diagram. This is particularly important for understanding and designing experiments using non-equilibrium deposition techniques. Finally, we discuss the role of defect ordering and estimate a cubic lattice parameter as a function of defect contents and put them in the context of existing literature theoretical and experimental data.

  2. StreaMon: a data-plane programming abstraction for Software-defined Stream Monitoring

    OpenAIRE

    Bianchi, Giuseppe; Bonola, Marco; Picierro, Giulio; Pontarelli, Salvatore; Monaci, Marco

    2013-01-01

    The fast evolving nature of modern cyber threats and network monitoring needs calls for new, "software-defined", approaches to simplify and quicken programming and deployment of online (stream-based) traffic analysis functions. StreaMon is a carefully designed data-plane abstraction devised to scalably decouple the "programming logic" of a traffic analysis application (tracked states, features, anomaly conditions, etc.) from elementary primitives (counting and metering, matching, events gener...

  3. Idunn Mons on Venus: Location and extent of recently active lava flows

    Science.gov (United States)

    D'Incecco, Piero; Müller, Nils; Helbert, Jörn; D'Amore, Mario

    2017-02-01

    From 2006 until 2014 the ESA Venus Express probe observed the atmosphere and surface of the Earth's twin planet. The Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) has provided data that indicate the occurrence of recent volcanic activity on Venus. We selected the eastern flank of Idunn Mons - Imdr Regio's single large volcano - as the study area, since it was identified in VIRTIS data as one of the regions with relatively high values of thermal emissivity at 1 μm wavelength. Using the capabilities of specific techniques developed in the Planetary Emissivity Laboratory group at DLR in Berlin, our study intends to identify location and extent of the sources of such anomalies, thus the lava flows responsible for the relatively high emissivity observed by VIRTIS over the eastern flank of Idunn Mons. We map the lava flow units on the top and eastern flank of Idunn Mons, varying the values of simulated 1 μm emissivity assigned to the mapped units. For each configuration we calculate the total RMS error in comparison with the VIRTIS observations. In the best-fit configuration, the flank lava flows are characterized by high values of 1 μm simulated emissivity. Hence, the lava flow units on the eastern flank on Idunn Mons are likely responsible for the relatively high 1 μm emissivity anomalies observed by VIRTIS. This result is supported by the reconstructed post-eruption stratigraphy, displaying the relative dating of the mapped lava flows, that is independent of the 1 μm emissivity modeling. Values of average microwave emissivity extracted from the lava flow units range around the global mean, which is consistent with dry basalts.

  4. Intelligent MONitoring System for antiviral pharmacotherapy in patients with chronic hepatitis C (SiMON-VC

    Directory of Open Access Journals (Sweden)

    Luis Margusino-Framiñán

    2017-01-01

    Full Text Available Two out of six strategic axes of pharmaceutical care in our hospital are quality and safety of care, and the incorporation of information technologies. Based on this, an information system was developed in the outpatient setting for pharmaceutical care of patients with chronic hepatitis C, SiMON-VC, which would improve the quality and safety of their pharmacotherapy. The objective of this paper is to describe requirements, structure and features of Si- MON-VC. Requirements demanded were that the information system would enter automatically all critical data from electronic clinical records at each of the visits to the Outpatient Pharmacy Unit, allowing the generation of events and alerts, documenting the pharmaceutical care provided, and allowing the use of data for research purposes. In order to meet these requirements, 5 sections were structured for each patient in SiMON-VC: Main Record, Events, Notes, Monitoring Graphs and Tables, and Follow-up. Each section presents a number of tabs with those coded data needed to monitor patients in the outpatient unit. The system automatically generates alerts for assisted prescription validation, efficacy and safety of using antivirals for the treatment of this disease. It features a completely versatile Indicator Control Panel, where temporary monitoring standards and alerts can be set. It allows the generation of reports, and their export to the electronic clinical record. It also allows data to be exported to the usual operating systems, through Big Data and Business Intelligence. Summing up, we can state that SiMON-VC improves the quality of pharmaceutical care provided in the outpatient pharmacy unit to patients with chronic hepatitis C, increasing the safety of antiviral therapy.

  5. The contribution of meteorological surveys to the analysis of forest ecosystems: the FutMon project

    Directory of Open Access Journals (Sweden)

    Salvati L

    2013-09-01

    Full Text Available Much of the wide variation in plant morphology, physiology and development biology is reflected in the capacity to adapt to climate changes. The aim of this paper is to contribute to the climate description of selected Italian forest sites (the CONECOFOR network where a permanent environmental monitoring was carried out since 1997 within the ICP-Forests, ICP-IM framework Forest Focus Reg. and the EU-funded FutMon research project.

  6. Intelligent MONitoring System for antiviral pharmacotherapy in patients with chronic hepatitis C (SiMON-VC).

    Science.gov (United States)

    Margusino-Framiñán, Luis; Cid-Silva, Purificación; Mena-de-Cea, Álvaro; Sanclaudio-Luhía, Ana Isabel; Castro-Castro, José Antonio; Vázquez-González, Guillermo; Martín-Herranz, Isabel

    2017-01-01

    Two out of six strategic axes of pharmaceutical care in our hospital are quality and safety of care, and the incorporation of information technologies. Based on this, an information system was developed in the outpatient setting for pharmaceutical care of patients with chronic hepatitis C, SiMON-VC, which would improve the quality and safety of their pharmacotherapy. The objective of this paper is to describe requirements, structure and features of Si- MON-VC. Requirements demanded were that the information system would enter automatically all critical data from electronic clinical records at each of the visits to the Outpatient Pharmacy Unit, allowing the generation of events and alerts, documenting the pharmaceutical care provided, and allowing the use of data for research purposes. In order to meet these requirements, 5 sections were structured for each patient in SiMON-VC: Main Record, Events, Notes, Monitoring Graphs and Tables, and Follow-up. Each section presents a number of tabs with those coded data needed to monitor patients in the outpatient unit. The system automatically generates alerts for assisted prescription validation, efficacy and safety of using antivirals for the treatment of this disease. It features a completely versatile Indicator Control Panel, where temporary monitoring standards and alerts can be set. It allows the generation of reports, and their export to the electronic clinical record. It also allows data to be exported to the usual operating systems, through Big Data and Business Intelligence. Summing up, we can state that SiMON-VC improves the quality of pharmaceutical care provided in the outpatient pharmacy unit to patients with chronic hepatitis C, increasing the safety of antiviral therapy. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  7. Bt-maize event MON 88017 expressing Cry3Bb1 does not cause harm to non-target organisms.

    Science.gov (United States)

    Devos, Yann; De Schrijver, Adinda; De Clercq, Patrick; Kiss, József; Romeis, Jörg

    2012-12-01

    This review paper explores whether the cultivation of the genetically modified Bt-maize transformation event MON 88017, expressing the insecticidal Cry3Bb1 protein against corn rootworms (Coleoptera: Chrysomelidae), causes adverse effects to non-target organisms (NTOs) and the ecological and anthropocentric functions they provide. Available data do not reveal adverse effects of Cry3Bb1 on various NTOs that are representative of potentially exposed taxonomic and functional groups, confirming that the insecticidal activity of the Cry3Bb1 protein is limited to species belonging to the coleopteran family of Chrysomelidae. The potential risk to non-target chrysomelid larvae ingesting maize MON 88017 pollen deposited on host plants is minimal, as their abundance in maize fields and the likelihood of encountering harmful amounts of pollen in and around maize MON 88017 fields are low. Non-target adult chrysomelids, which may occasionally feed on maize MON 88017 plants, are not expected to be affected due to the low activity of the Cry3Bb1 protein on adults. Impacts on NTOs caused by potential unintended changes in maize MON 88017 are not expected to occur, as no differences in composition, phenotypic characteristics and plant-NTO interactions were observed between maize MON 88017 and its near-isogenic line.

  8. Visual/Verbal-Analytic Reasoning Bias as a Function of Self-Reported Autistic-Like Traits: A Study of Typically Developing Individuals Solving Raven's Advanced Progressive Matrices

    Science.gov (United States)

    Fugard, Andrew J. B.; Stewart, Mary E.; Stenning, Keith

    2011-01-01

    People with autism spectrum condition (ASC) perform well on Raven's matrices, a test which loads highly on the general factor in intelligence. However, the mechanisms supporting enhanced performance on the test are poorly understood. Evidence is accumulating that milder variants of the ASC phenotype are present in typically developing individuals,…

  9. So Young and Already Victims of Stereotype Threat: Socio-Economic Status and Performance of 6 to 9 Years Old Children on Raven's Progressive Matrices

    Science.gov (United States)

    Desert, Michel; Preaux, Marie; Jund, Robin

    2009-01-01

    The aim of this study was to verify whether children from low socio-economic status (SES) are victims of stereotype threat. Children in first grade (6 to 7 years old) and third grade (8 to 9 years old) performed Raven's progressive matrices, an intellectual ability test commonly used by psychologists. The test was presented either with the…

  10. Visual/Verbal-Analytic Reasoning Bias as a Function of Self-Reported Autistic-Like Traits: A Study of Typically Developing Individuals Solving Raven's Advanced Progressive Matrices

    Science.gov (United States)

    Fugard, Andrew J. B.; Stewart, Mary E.; Stenning, Keith

    2011-01-01

    People with autism spectrum condition (ASC) perform well on Raven's matrices, a test which loads highly on the general factor in intelligence. However, the mechanisms supporting enhanced performance on the test are poorly understood. Evidence is accumulating that milder variants of the ASC phenotype are present in typically developing individuals,…

  11. Extraversion and Performance on Raven's Matrices in 15-16 Year Old Children: An Examination of Anthony's Theory of the Development of Extraversion.

    Science.gov (United States)

    Crookes, T. G.; And Others

    1981-01-01

    Anthony's theory of the development of extraversion in children requires that there should be a negative correlation between extraversion and intelligence after age 13 or 14. To test this Raven's Progressive Matrices and the Junior Eysenck Personality Inventory were administered to 801 adolescents. Findings did not support Anthony's theory.…

  12. Dynamical star-disk interaction in the young stellar system V354 Mon

    CERN Document Server

    Fonseca, N N J; Bouvier, J; Favata, F; Flaccomio, E

    2014-01-01

    The main goal of this work is to characterize the mass accretion and ejection processes of the classical T Tauri star V354 Mon, a member of the young stellar cluster NGC 2264. In March 2008, photometric and spectroscopic observations of V354 Mon were obtained simultaneously with the CoRoT satellite, the 60 cm telescope at the Observat\\'orio Pico dos Dias (LNA - Brazil) equipped with a CCD camera and Johnson/Cousins BVRI filters, and the SOPHIE \\'echelle spectrograph at the Observatoire de Haute-Provence (CNRS - France). The light curve of V354 Mon shows periodical minima (P = 5.26 +/- 0.50 days) that vary in depth and width at each rotational cycle. From the analysis of the photometric and spectroscopic data, it is possible to identify correlations between the emission line variability and the light-curve modulation of the young system, such as the occurrence of pronounced redshifted absorption in the H_alpha line at the epoch of minimum flux. This is evidence that during photometric minima we see the accreti...

  13. Similarities and differences in the spectral behavior of W Ser and UX Mon in the ultraviolet

    Science.gov (United States)

    Sanad, M. R.; Bobrowsky, M.

    2013-04-01

    We present ultraviolet spectra of two eclipsing interacting binary systems, W Ser and UX Mon, with good coverage over the 14.16-day and 5.9-day orbital periods, respectively, using observations taken by the International Ultraviolet Explorer ( IUE) during the period between 1978-1993 and 1981-1991. Two profiles of W Ser and UX Mon showing variations of line fluxes at two orbital phases are presented. This paper focuses on the N V emission line at 1240 Å, C II emission line at 1336 Å, C IV emission line at 1550 Å, O III emission line at 1666 Å and the Si III emission line at 1892 Å, produced in an extended gaseous envelope around the mass-gaining component by calculating spectral line fluxes. Our results show that there are variations of line fluxes with time, similar to the light curves found for both W Ser and UX Mon. We attribute these spectral variations to eclipse effects and to variations in the mass transfer rate. These results from the IUE observations support the thick disk model around the primary star in which variations of mass transfer affect the observed radiation from the gaseous envelope around the hot star. Future, high-resolution imaging is recommended to confirm the inferred asymmetrical circumstellar envelopes.

  14. Similarities and Differences in Spectral Behavior Between W Ser and UX Mon in the UV

    Science.gov (United States)

    Bobrowsky, Matthew; Sanad, M. R.

    2012-01-01

    We present ultraviolet spectra of two eclipsing interacting binary systems, W Ser and UX Mon. The data contain good coverage over the 14.16-day and 5.9-day orbital periods, respectively, using observations taken by the International Ultraviolet Explorer (IUE) during periods between 1978 - 1993 and 1981 - 1991 for the two systems respectively. Two profiles of both W Ser and UX Mon showing variations of line fluxes at two orbital phases are presented. We investigated the N V emission line at 1240 Å, C II emission line at 1336 Å, C IV emission line at 1550 Å, O III emission line at 1666 Å, and Si III emission line at 1892 Å (which are produced in an extended gaseous envelope around the mass-gaining component), by calculating the line fluxes of these spectral lines. Our results show that there are spectral variations of line fluxes at different orbital phases, correlated with the light curves found for both W Ser and UX Mon. We attribute these spectral variations to effects from the eclipse and to variations in the mass transfer rate. M.B. acknowledges support from NASA, through grant number HST-AR-10304.04-A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.

  15. SystMon: a data visualization tool for the analysis of telemetry data

    Science.gov (United States)

    Guerra, Juan Carlos; Stephan, Christian; Pena, Eduardo; Valenzuela, Javier; Osorio, Juan

    2016-07-01

    The Paranal Very Large Telescopes (VLT) Observatory is a complex multifunctional observatory where many different systems are generating telemetry parameters.As systems becoming more and more complex, also the amount of telemetry data is increasing. This telemetry data is usually saved in various data repositories.In order to obtain a full system overview, it is necessary to link all that data in a meaningful and easy to interpret way. A step forward from simple telemetry data visualisation has been done by developing a new tool that can combine different data sources and has a powerful graphing capability.This new tool, called SystMon, is developed in iPython an interactive-web browser environment under the philosophy of notebooks which combine the code and the final product. The application can be shared among other colleagues and having the code side by side gives the accessibility to inspect and review the process improving and adding new capabilities to the application. SystMon allows to manipulate, generate andvisualise data in different types of graphs and also to create directly statistical reports. SystMon helps the user tomodel, visualiseand interpret telemetry data in a web-based platform for monitoring the health of systems, understanding short- and long-term behaviour and to anticipate corrective interventions.

  16. V899 MON: AN OUTBURSTING PROTOSTAR WITH A PECULIAR LIGHT CURVE, AND ITS TRANSITION PHASES

    Energy Technology Data Exchange (ETDEWEB)

    Ninan, J. P.; Ojha, D. K.; Baug, T. [Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005 (India); Bhatt, B. C.; Anupama, G. C. [Indian Institute of Astrophysics, Korama ngala, Bangalore 560 034 (India); Mohan, V. [Inter-University Centre for Astronomy and Astrophysics, Pune 411 007 (India); Ghosh, S. K. [National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune 411 007 (India); Men’shchikov, A. [Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot, IRFU/SAp, CEA Saclay, Orme des Merisiers, F-91191 Gif-sur-Yvette (France); Tamura, M. [National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan); Henning, Th., E-mail: ninan@tifr.res.in [Max-Planck-Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg (Germany)

    2015-12-10

    We present a detailed study of V899 Mon (a new member in the FUors/EXors family of young low-mass stars undergoing outburst), based on our long-term monitoring of the source starting from 2009 November to 2015 April. Our optical and near-infrared photometric and spectroscopic monitoring recorded the source transitioning from its first outburst to a short-duration quiescence phase (<1 yr), and then returning to a second outburst. We report here the evolution of the outflows from the inner region of the disk as the accretion rate evolved in various epochs. Our high-resolution (R ∼ 37,000) optical spectrum could resolve interesting clumpy structures in the outflow traced by various lines. Change in far-infrared flux was also detected between two outburst epochs. Based on our observations, we constrained various stellar and envelope parameters of V899 Mon, as well as the kinematics of its accretion and outflow. The photometric and spectroscopic properties of this source fall between classical FUors and EXors. Our investigation of V899 Mon hints at instability associated with magnetospheric accretion being the physical cause of the sudden short-duration pause of the outburst in 2011. It is also a good candidate to explain similar short-duration pauses in outbursts of some other FUors/EXors sources.

  17. SecMon: End-to-End Quality and Security Monitoring System

    CERN Document Server

    Ciszkowski, Tomasz; Fiedler, Markus; Kotulski, Zbigniew; Lupu, Radu; Mazurczyk, Wojciech

    2008-01-01

    The Voice over Internet Protocol (VoIP) is becoming a more available and popular way of communicating for Internet users. This also applies to Peer-to-Peer (P2P) systems and merging these two have already proven to be successful (e.g. Skype). Even the existing standards of VoIP provide an assurance of security and Quality of Service (QoS), however, these features are usually optional and supported by limited number of implementations. As a result, the lack of mandatory and widely applicable QoS and security guaranties makes the contemporary VoIP systems vulnerable to attacks and network disturbances. In this paper we are facing these issues and propose the SecMon system, which simultaneously provides a lightweight security mechanism and improves quality parameters of the call. SecMon is intended specially for VoIP service over P2P networks and its main advantage is that it provides authentication, data integrity services, adaptive QoS and (D)DoS attack detection. Moreover, the SecMon approach represents a low...

  18. A simplified and accurate detection of the genetically modified wheat MON71800 with one calibrator plasmid.

    Science.gov (United States)

    Kim, Jae-Hwan; Park, Saet-Byul; Roh, Hyo-Jeong; Park, Sunghoon; Shin, Min-Ki; Moon, Gui Im; Hong, Jin-Hwan; Kim, Hae-Yeong

    2015-06-01

    With the increasing number of genetically modified (GM) events, unauthorized GMO releases into the food market have increased dramatically, and many countries have developed detection tools for them. This study described the qualitative and quantitative detection methods of unauthorized the GM wheat MON71800 with a reference plasmid (pGEM-M71800). The wheat acetyl-CoA carboxylase (acc) gene was used as the endogenous gene. The plasmid pGEM-M71800, which contains both the acc gene and the event-specific target MON71800, was constructed as a positive control for the qualitative and quantitative analyses. The limit of detection in the qualitative PCR assay was approximately 10 copies. In the quantitative PCR assay, the standard deviation and relative standard deviation repeatability values ranged from 0.06 to 0.25 and from 0.23% to 1.12%, respectively. This study supplies a powerful and very simple but accurate detection strategy for unauthorized GM wheat MON71800 that utilizes a single calibrator plasmid.

  19. From History to Memory: Alain Resnais’ and Marguerite Duras’ Hiroshima mon amour

    Directory of Open Access Journals (Sweden)

    Sarah French

    2008-12-01

    Full Text Available This paper examines the representation of history and memory in Alain Resnais’ and Marguerite Duras’ 1959 film Hiroshima mon amour. It argues that the film’s privileging of subjective remembrance reflects a broader cultural interest in using memory as a counter discourse to established history. The widely documented cultural preoccupation with memory became particularly prominent in the early 1980s. However, Hiroshima mon amour can be read as an important early example of a film that predates the contemporary ‘memory boom’. For Resnais and Duras, the magnitude of the devastation in Hiroshima exceeds the limits of filmic representation. Their solution to the problem that the historic event is unrepresentable is to approach the event indirectly while focusing on an individual traumatic memory. Through a close analysis and critique of the film I argue that the film’s emphasis on individual memory validates the legitimacy of the personal narrative but problematically subsumes the political events and displaces history from the discursive realm. I also suggest that problems emerge in the film’s depiction of its traumatised female subject. While Hiroshima mon amour represents a complex female subjectivity and interiority, the process of remembrance depicted deprives the woman of agency and renders her trapped within a compulsive repetition of the past.

  20. VizieR Online Data Catalog: BVR photometry of IZ Mon and AR Dra (Yang+, 2016)

    Science.gov (United States)

    Yang, Y.-G.; Dai, H.-F.; Zhou, Z.; Li, Q.

    2016-07-01

    CCD Photometry for IZ Mon and AR Dra, was acquired using the 60cm telescope and the 85cm telescope at the Xinglong station (XLs) of National Astronomical Observatories of China (NAOC). Two telescopes are equipped with the standard Johnson-Cousins UBVRcIc. filters. We then obtained the individual observations as heliocentric Julian dates and differential magnitude, which are listed in Table1. The complete light curves for IZ Mon were obtained on 2009 January 20, 22, 24, 25, and 26, and March 1, using the 85cm telescope. The exposure times are fixed to be 20, 15, and 15s for BVR bands, respectively. A total of 961, 960, and 959 effective images in BVR bands are obtained. Another primary eclipse for IZ Mon was monitored on 2011 January 17. AR Dra was observed on 2009 February 20, 25, 26, and 27, with the 65cm telescope. The typical exposure times are 50, 40 and 40s for BVR bands, which depend on the condition of weather. In total, we obtained 733, 728 and 356 images in B, V and R bands, respectively. (6 data files).

  1. GU Mon, a high-mass eclipsing overcontact binary in the young open cluster Dolidze 25

    CERN Document Server

    Lorenzo, J; Vilardell, F; Simón-Díaz, S; Pastor, P; Majuelos, M Méndez

    2016-01-01

    Context. The eclipsing binary GU Mon is located in the star-forming cluster Dolidze 25, which has the lowest metallicity measured in a Milky Way young cluster. Aims. GU Mon has been identified as a short-period eclipsing binary with two early B-type components. We set out to derive its orbital and stellar parameters. Methods. We present a comprehensive analysis, including B and V light curves and 11 high-resolution spectra, to verify the orbital period and determine parameters. We use the stellar atmosphere code FASTWIND to obtain stellar parameters and create templates for cross-correlation. We obtain a model to fit the light and radial-velocity curves using the Wilson-Devinney code iteratively and simultaneously. Results. The two components of GU Mon are identical stars of spectral type B1 V, with the same mass and temperature. The lightcurves are typical of an EW-type binary. The spectroscopic and photometric analyses agree on a period of 0.896640 +- 0.000007 d. We determine a mass of 9.0 +- 0.6 Msun for e...

  2. Estructura retórica del monólogo televisivo

    Directory of Open Access Journals (Sweden)

    Pedro J. Gómez

    2012-04-01

    Full Text Available En el presente artículo demostraremos que los monólogos televisivos de mayor éxito funcionan con una estructura bastante similar e inspirada en la del discurso retórico clásico. Esta característica permite situar a las denominadas stand-up comedies entre los discursos de ficción con una mayor carga retórica en el plano del contenido, hecho que contrasta con la menor presencia de elementos retóricos típicamente visuales. No han sido objeto de este estudio las figuras retóricas literarias, muy abundantes, utilizadas en cada monólogo, aunque en algún momento se pueda hacer referencia a alguna de ellas. El estudio concluye con algunas reglas generales, de uso común en la mayor parte de los monólogos televisivos o al menos, en los de mayor éxito.

  3. Why the public health sector couldn’t create Pokémon Go

    Directory of Open Access Journals (Sweden)

    Becky Freeman

    2017-07-01

    Full Text Available Pokémon Go has been subject to much attention – from both the players that download the augmented reality game and the news media. Amid the exaggerated media reports, Pokémon Go may have unintended health benefits. Players have reported walking more, spending more time with family, experiencing improvements in their mental health and feeling more connected to their communities. It is hard to imagine public health researchers developing a similar game that is fun, taps into pop culture, reaches a wide target audience, makes use of physical and virtual environments, creates a sense of both competition and community, and has spin-off health benefits. Companies that endanger public health immediately recognised the value of the Pokémon Go app, and exploited it to advertise and promote consumption of unhealthy foods. Public health stakeholders need to develop mobile-based interventions within a framework that embraces pleasure, rewards, participation and community. Public health agencies need to be just as nimble and responsive as companies that are harmful to health, or forever be creating games that nobody plays.

  4. Intestinal and peripheral immune response to MON810 maize ingestion in weaning and old mice.

    Science.gov (United States)

    Finamore, Alberto; Roselli, Marianna; Britti, Serena; Monastra, Giovanni; Ambra, Roberto; Turrini, Aida; Mengheri, Elena

    2008-12-10

    This study evaluated the gut and peripheral immune response to genetically modified (GM) maize in mice in vulnerable conditions. Weaning and old mice were fed a diet containing MON810 or its parental control maize or a pellet diet containing a GM-free maize for 30 and 90 days. The immunophenotype of intestinal intraepithelial, spleen, and blood lymphocytes of control maize fed mice was similar to that of pellet fed mice. As compared to control maize, MON810 maize induced alterations in the percentage of T and B cells and of CD4(+), CD8(+), gammadeltaT, and alphabetaT subpopulations of weaning and old mice fed for 30 or 90 days, respectively, at the gut and peripheral sites. An increase of serum IL-6, IL-13, IL-12p70, and MIP-1beta after MON810 feeding was also found. These results suggest the importance of the gut and peripheral immune response to GM crop ingestion as well as the age of the consumer in the GMO safety evaluation.

  5. VizieR Online Data Catalog: Photometry and spectroscopy of V501 Mon (Torres+, 2015)

    Science.gov (United States)

    Torres, G.; Lacy, C. H. S.; Pavlovski, K.; Fekel, F. C.; Muterspaugh, M. W.

    2016-06-01

    Spectroscopic observations of V501 Mon were carried out with three different instruments. They began at the Harvard-Smithsonian Center for Astrophysics (CfA) in 2005 November, using the now decommissioned Digital Speedometer (DS) mounted on the 1.5m Tillinghast reflector at the Fred L. Whipple Observatory on Mount Hopkins (AZ). Seven spectra were recorded through 2009 March with an intensified photon-counting Reticon detector, and cover a narrow span of 45Å centered at 5190Å (MgIb triplet). The resolving power of this instrument was R~35000, and the signal-to-noise ratios of the spectra range from 13 to 22 per resolution element of 8.5km/s. Thirty seven additional spectra were gathered from 2009 November to 2015 February with the Tillinghast Reflector Echelle Spectrograph (TRES) on the same telescope. This bench-mounted, fiber-fed instrument provides a resolving power of R~44000 in 51 orders over the wavelength span 3900-9100Å. The signal-to-noise ratios of the 37 spectra range from 8 to 56 per resolution element of 6.8km/s. The heliocentric velocities we obtained from the DS and TRES spectra are listed in Table2. Between 2011 October and 2015 February we also obtained 57 usable spectra of V501 Mon with the Tennessee State University 2m Automatic Spectroscopic Telescope (AST) and a fiber-fed echelle spectrograph at Fairborn Observatory in southeast Arizona. The detector for these observations was a Fairchild 486 CCD, with 15μm pixels in a 4096*4096 format. The spectrograms have 48 orders ranging from 3800 to 8260Å. Because of the faintness of V501 Mon (V=12.32), we used a fiber that produced a spectral resolution of 0.4Å, corresponding to a resolving power of 15000 at 6000Å. Our spectra have typical signal-to-noise ratios per resolution element of 40 at 6000Å. We list the final values in Table3. An extensive program of CCD photometry was carried out using the NFO WebScope ear Silver City, New Mexico, for the purpose of gathering an accurate V-band light

  6. Silk-Cloth Weaving Development of the Mon-Khmer Ethnic Group in Lower-Isan

    Directory of Open Access Journals (Sweden)

    Wira Phansuwan

    2010-01-01

    Full Text Available Problem statement: Silk cloth weaving culture of the Mon-Khmer ethnic group in Lower-Isan has a specific identity which should be handed down to future generation. The purposes of this research were to examine: (1 the body knowledge concerning silk clothes of the Mon-Khmer ethnic group in Lower-Isan region, (2 the process of production or silk-cloth weaving of the Mon-Khmer ethnic group in Lower-Isan region and (3 development of silk-cloth weaving of the Mon-Khmer ethnic group in Lower-Isan region. Approach: The research data was gathered from documents concerned and research fields. A sample was 156 people living at 7 villages and those involving silk-cloth production or weaving. The data was analyzed according to the research purposes and presented by means of a descriptive analysis. Results: Silk-cloth weaving has been a cultural heritage transferred from ancestors. In 1215 Chow Tang Kwan stated that the Siamese people came there, grew mulberries, raised silkworms and wove silk clothes from that time through learning from generation to generation. The cloth-identity and patterns have been party influenced by their ethnic group together with the way of life in each period. In the past, the main purpose of silk-cloth weaving was for household use. Some of the silk clothes were kept for being supplement to various rituals and Buddhist ceremonies. Thus, it was not necessary for them to have commercial production. Household-labor was still an important-productive factor of sufficient economy and reliant society. For the production process, it has been found that at present the economic and social structures have changed from household-use production to commercial production. There are complete production processes in the type of forming groups and the management system by increasing production competency to obtain both quantity and quality as well as standard prices. There are transmutations into a variety of other products and promotion of

  7. Genetic structure of the Mon-Khmer speaking groups and their affinity to the neighbouring Tai populations in Northern Thailand

    Directory of Open Access Journals (Sweden)

    Seielstad Mark

    2011-06-01

    Full Text Available Abstract Background The Mon-Khmer speaking peoples inhabited northern Thailand before the arrival of the Tai speaking people from southern China in the thirteenth century A.D. Historical and anthropological evidence suggests a close relationship between the Mon-Khmer groups and the present day majority northern Thai groups. In this study, mitochondrial and Y-chromosomal DNA polymorphisms in more than 800 volunteers from eight Mon-Khmer and ten Tai speaking populations were investigated to estimate the degree of genetic divergence between these major linguistic groups and their internal structure. Results A large fraction of genetic variation is observed within populations (about 80% and 90% for mtDNA and the Y-chromosome, respectively. The genetic divergence between populations is much higher in Mon-Khmer than in Tai speaking groups, especially at the paternally inherited markers. The two major linguistic groups are genetically distinct, but only for a marginal fraction (1 to 2% of the total genetic variation. Genetic distances between populations correlate with their linguistic differences, whereas the geographic distance does not explain the genetic divergence pattern. Conclusions The Mon-Khmer speaking populations in northern Thailand exhibited the genetic divergence among each other and also when compared to Tai speaking peoples. The different drift effects and the post-marital residence patterns between the two linguistic groups are the explanation for a small but significant fraction of the genetic variation pattern within and between them.

  8. Scientific Opinion updating the risk assessment conclusions and risk management recommendations on the genetically modified insect resistant maize MON 810

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2012-12-01

    Full Text Available Following a request from the European Commission, the Panel on Genetically Modified Organisms of the European Food Safety Authority (EFSA GMO Panel compiled its previous risk assessment conclusions and risk management recommendations on the genetically modified insect resistant maize MON 810, and considered their validity in the light of new relevant scientific publications published from 2009 onwards. Following a search of the scientific literature published between 2009 and October 2012, the EFSA GMO Panel identified 165 peer-reviewed publications containing evidence specific to the risk assessment and/or management of maize MON 810, of which 68 publications were discussed and/or cited in previous EFSA GMO Panel scientific outputs. From the remaining 97 publications, eight were relevant for the molecular characterisation, 27 for food and feed safety assessment, 55 for the environmental risk assessment and/or risk management, two for the molecular characterisation and the environmental risk assessment and/or risk management and five for the food and feed safety assessment and the environmental risk assessment and/or risk management of maize MON 810. None of these publications reported new information that would invalidate the previous conclusions on the safety of maize MON 810 made by the EFSA GMO Panel. Therefore, the EFSA GMO Panel considers that its previous risk assessment conclusions on maize MON 810, as well as its previous recommendations on risk mitigation measures and monitoring, remain valid and applicable.

  9. A Spitzer view of the giant molecular cloud Mon OB1 East/NGC 2264

    Energy Technology Data Exchange (ETDEWEB)

    Rapson, V. A. [School of Physics and Astronomy, Rochester Institute of Technology, Rochester, NY 14623 (United States); Pipher, J. L. [Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627 (United States); Gutermuth, R. A. [Five College Astronomy Department, Smith College, Northampton, MA 01063 (United States); Megeath, S. T.; Allen, T. S. [Lowell Observatory, Flagstaff, AZ 86001 (United States); Myers, P. C. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Allen, L. E., E-mail: var5998@rit.edu [National Optical Astronomy Observatories, Tucson, AZ 85719 (United States)

    2014-10-20

    We present Spitzer 3.6, 4.5, 5.8, 8.0, and 24 μm images of the Mon OB1 East giant molecular cloud, which contains the young star forming region NGC 2264, as well as more extended star formation. With Spitzer data and Two Micron All Sky Survey photometry, we identify and classify young stellar objects (YSOs) with dusty circumstellar disks and/or envelopes in Mon OB1 East by their infrared-excess emission and study their distribution with respect to cloud material. We find a correlation between the local surface density of YSOs and column density of molecular gas as traced by dust extinction that is roughly described as a power law in these quantities. NGC 2264 follows a power-law index of ∼2.7, exhibiting a large YSO surface density for a given gas column density. Outside of NGC 2264 where the surface density of YSOs is lower, the power law is shallower and the region exhibits a larger gas column density for a YSO surface density, suggesting the star formation is more recent. In order to measure the fraction of cloud members with circumstellar disks/envelopes, we estimate the number of diskless pre-main-sequence stars by statistical removal of background star detections. We find that the disk fraction of the NGC 2264 region is 45%, while the surrounding, more distributed regions show a disk fraction of 19%. This may be explained by the presence of an older, more dispersed population of stars. In total, the Spitzer observations provide evidence for heterogenous, non-coeval star formation throughout the Mon OB1 cloud.

  10. Population abundance of potentially pathogenic organisms in intestinal microbiome of jungle crow (Corvus macrorhynchos) shown with 16S rRNA gene-based microbial community analysis.

    Science.gov (United States)

    Maeda, Isamu; Siddiki, Mohammad Shohel Rana; Nozawa-Takeda, Tsutomu; Tsukahara, Naoki; Tani, Yuri; Naito, Taki; Sugita, Shoei

    2013-01-01

    Jungle Crows (Corvus macrorhynchos) prefer human habitats because of their versatility in feeding accompanied with human food consumption. Therefore, it is important from a public health viewpoint to characterize their intestinal microbiota. However, no studies have been involved in molecular characterization of the microbiota based on huge and reliable number of data acquisition. In this study, 16S rRNA gene-based microbial community analysis coupled with the next-generation DNA sequencing techniques was applied to the taxonomic classification of intestinal microbiome for three jungle crows. Clustering of the reads into 130 operational taxonomic units showed that at least 70% of analyzed sequences for each crow were highly homologous to Eimeria sp., which belongs to the protozoan phylum Apicomplexa. The microbiotas of three crows also contained potentially pathogenic bacteria with significant percentages, such as the genera Campylobacter and Brachyspira. Thus, the profiling of a large number of 16S rRNA gene sequences in crow intestinal microbiomes revealed the high-frequency existence or vestige of potentially pathogenic microorganisms.

  11. Population Abundance of Potentially Pathogenic Organisms in Intestinal Microbiome of Jungle Crow (Corvus macrorhynchos Shown with 16S rRNA Gene-Based Microbial Community Analysis

    Directory of Open Access Journals (Sweden)

    Isamu Maeda

    2013-01-01

    Full Text Available Jungle Crows (Corvus macrorhynchos prefer human habitats because of their versatility in feeding accompanied with human food consumption. Therefore, it is important from a public health viewpoint to characterize their intestinal microbiota. However, no studies have been involved in molecular characterization of the microbiota based on huge and reliable number of data acquisition. In this study, 16S rRNA gene-based microbial community analysis coupled with the next-generation DNA sequencing techniques was applied to the taxonomic classification of intestinal microbiome for three jungle crows. Clustering of the reads into 130 operational taxonomic units showed that at least 70% of analyzed sequences for each crow were highly homologous to Eimeria sp., which belongs to the protozoan phylum Apicomplexa. The microbiotas of three crows also contained potentially pathogenic bacteria with significant percentages, such as the genera Campylobacter and Brachyspira. Thus, the profiling of a large number of 16S rRNA gene sequences in crow intestinal microbiomes revealed the high-frequency existence or vestige of potentially pathogenic microorganisms.

  12. Essential and nonessential elements in nestling rooks Corvus frugilegus from eastern Poland with a special emphasis on their high cadmium contamination.

    Science.gov (United States)

    Orłowski, Grzegorz; Kamiński, Piotr; Kasprzykowski, Zbigniew; Zawada, Zbigniew; Koim-Puchowska, Beata; Szady-Grad, Małgorzata; Klawe, Jacek J

    2012-11-01

    Concentration of minerals (sodium, potassium, calcium [Ca], magnesium, iron [Fe], copper, zinc [Zn], manganese [Mn], and cobalt) as well as toxic metals (cadmium [Cd], lead [Pb]) were determined in five tissues (liver, lung, kidney, muscle, and bone) of nestling rooks (Corvus frugilegus; 1 to 13 days old) found dead in seven breeding colonies in eastern Poland. Cd concentration in all analyzed tissues was in the narrow range of 17.0-17.2 mg/kg dry weight (dw) Cd, which in the light of the literature data indicates acute contamination by this toxic metal. Similarly, we found increased levels of Pb, which in all tissues ranged between 5.0 and 6.2 mg/kg dw. Results of multivariate general linear model (GLM) testing of the effect of three variables (tissue type, colony, and nestling age) on tissue concentrations of various metals showed significance for Fe, Cu, Zn, and Mn. Only concentrations of Ca, Fe, and Zn differed significantly between the analyzed tissues. GLM analysis did not show any statistically significant differences in tissue levels of minerals and both toxic metals among examined rookeries, which indicates the widespread presence of nonpoint Cd and Pb pollution linked to agricultural activity and similar levels of these inorganic contaminants on crop fields (feeding grounds) around breeding colonies. We concluded that high levels of both toxic metals, Cd and Pb, probably resulting from the diet of nestling rooks, are based mainly on a diet of ground-dwelling beetles gathered on crop fields.

  13. Detection of reactive ions in the ultracompact HII regions Mon R2 and G29.96-0.02

    CERN Document Server

    Rizzo, J R; Rodríguez-Franco, A; García-Burillo, S

    2003-01-01

    We report the first detection of the reactive ions CO+ and HOC+ towards ultracompact (UC) HII regions, particularly in Mon R2 and G29.96-0.02. We have observed two positions in Mon R2, namely the peak of the UC HII region and a position in the high density molecular cloud which bounds it. CO+ and HOC+ were detected at the UC HII region but not at the molecular cloud, as expected if the CO$^+$ and HOC$^+$ emissions arise in the PDR surrounding the \\uch. The measured CO$^+$ and HOC$^+$ column densities are of the order of 10$^{11}$ cm$^{-2}$ in both sources, which yields a strikingly low [HCO$^+$]/[HOC$^+$] abundance ratio of 460 in Mon R2. These values are similar to those found in some other well-known PDRs, like NGC 7023 and the Orion Bar. We briefly discuss the chemical implications of these results.

  14. Influence of Pokémon Go on physical activity levels of university players: a cross-sectional study.

    Science.gov (United States)

    Wong, Fiona Y

    2017-02-22

    The prevalence of overweight is increasing and the effectiveness of various weight management and exercise programs varied. An augmented reality smartphone game, Pokémon Go, appears to increase activity levels of players. This study assessed the players and ex-players' frequencies and durations of staying outdoors, and walking/jogging before and during the time they played Pokémon Go, evaluated the physical activity levels of players, ex-players and non-players, and investigated the potential factors which determined their play statuses. Students in a university answered an online-questionnaire survey. The IPAQ-short form was incorporated to measure vigorous-intensity activities, moderate-intensity activities and walking. Chi square tests were used to compare frequencies and durations of staying outdoors and walking/jogging, health discomforts and physical activity levels between players, ex-players and non-players. Wilcoxon signed ranks tests were performed to assess the changes prior to and during the time when the players and ex-players played Pokémon Go. Logistic regression analyses were performed to assess factors contributing to playing, quitting or not playing Pokémon Go. 644 university students answered the questionnaire. Compared with the ex-players, the players were significantly more frequent to stay outdoors when playing Pokémon Go (P Go. The game can be used as a starting point for sedentary people to begin an active lifestyle. The impact of Pokémon Go on physical activity can provide insights to public health workers in using novel strategies in health promotion.

  15. Sex differences in general intelligence: a psychometric investigation of group differences in mean and variability as measured by the Raven's Standard Progressive Matrices

    OpenAIRE

    Savage-McGlynn, Emily

    2011-01-01

    Approved hardbound copy has subtitle "a psychometric investigation of group differences in mean and variability as measured by the Raven's Standard Progressive Matrices Plus" Researchers and the general public alike continue to debate ‘which is the smarter sex?’ Research to date suggests that males outperform females, females outperform males, while others find no differences in mean or variance. These inconsistent results are thought to occur for two reasons. First, studies rely on opport...

  16. Application of Copper Indium Gallium Diselenide Photovoltaic Cells to Extend the Endurance and Capabilities of the Raven RQ-11B Unmanned Aerial Vehicle

    Science.gov (United States)

    2010-09-01

    2010]. [28] U. Malm,” Modelling and degradation characteristics of thin-film CIGS solar cells,” Ph.D. dissertation, Upp - sala Universitet, Uppsala...Switzerland demonstrated the possibility of launching a solar-powered plane after they successfully launched their Solar Impulse with a pilot on- board...source selection process, AeroVironment Inc. in Simi Valley, California, was chosen by the U.S. Army for their upgraded Raven, the B model . A

  17. Chemical abundance analysis of symbiotic giants. RW Hya, SY Mus, BX Mon, and AE Ara

    CERN Document Server

    Galan, Cezary; Hinkle, Kenneth H; Schmidt, Miroslaw R; Gromadzki, Mariusz

    2014-01-01

    Symbiotic stars are the long period, binary systems of strongly interacting stars at the final stages of evolution which can be useful tool to understand the chemical evolution of the Galaxy and the formation of stellar populations. Knowledge of the chemical composition of the symbiotic giants is essential to advancing our understanding of these issues but unfortunately reliably determinations exist only in a few cases. We perform a program for detailed chemical composition analysis in over 30 symbiotic giants, based on the high resolution, near-IR spectra, obtained with Phoenix/Gemini South spectrometer. The methods of the standard LTE analysis is used to obtain photospheric abundances of CNO and elements around iron peak. Here we present results obtained for four objects: RW Hya, SY Mus, BX Mon, and AE Ara. Our analysis revealed a significantly sub-solar metallicity (Me/H ~ -0.75) for RW Hya, a slightly sub-solar metallicities (Me/H ~ 0.2-0.3) in BX Mon and AE Ara, and a near-solar metallicity in SY Mus. 12...

  18. The aureole of Olympus Mons (Mars) as the compound deposit of submarine landslides

    Science.gov (United States)

    De Blasio, Fabio Vittorio

    2011-12-01

    The enigmatic deposits building up the Olympus Mons aureole on Mars are likely among the largest landslide remnants in the Solar System. These deposits exhibit an extraordinary run-out distance (up to nearly 700 km), in spite of a fall height some 100 times smaller. After quantifying the mobility of the Olympus Mons aureole lobes it is suggested, based on dynamical considerations and morphological analysis, that the aureole could be the consequence of a series of gigantic subaqueous landslides. In order to bring evidence in favor of this interpretation, comparisons are drawn between the different landslide deposits on Earth and Mars, emphasizing the similarity with the rock avalanches of the Canary Islands and the Hawaii. The results of experimental subaqueous debris flows are also analyzed, and numerical calculations are introduced to simulate the dynamics of flow. In analogy with certain subaqueous landslides on Earth, it is possible that the outstanding run-out of the aureole lobes was a consequence of hydroplaning, a natural lubrication by water during flow.

  19. V899 Mon: An Outbursting Protostar With Peculiar Light Curve And Its Transition Phases

    CERN Document Server

    Ninan, J P; Baug, T; Bhatt, B C; Mohan, V; Ghosh, S K; Men'shchikov, A; Anupama, G C; Tamura, M; Henning, Th

    2015-01-01

    We present a detailed study of V899 Mon (a new member in the FUors/EXors family of young low-mass stars undergoing outburst), based on our long-term monitoring of the source starting from November 2009 to April 2015. Our optical and near-infrared photometric and spectroscopic monitoring recorded the source transitioning from its first outburst to a short duration quiescence phase ($<$ 1 year), and then returning to a second outburst. We report here the evolution of the outflows from inner region of the disk as the accretion rate evolved in various epochs. Our high resolution (R$\\sim$37000) optical spectrum could resolve interesting clumpy structures in the outflow traced by various lines. Change in far-infrared flux was also detected between two outburst epochs. Based on our observations we constrained various stellar and envelope parameters of V899 Mon, as well as the kinematics of its accretion and outflow. The photometric and spectroscopic properties of this source fall between classical FUors and EXors...

  20. A revolta monárquica de 1912 em Cabeceiras de Basto – Braga

    Directory of Open Access Journals (Sweden)

    Norberto Tiago Gonçalves Ferraz

    2016-02-01

    Full Text Available O regime da Iª República Portuguesa enfrentou, desde o seu triunfo em 1910, a oposição de forças conservadoras que visavam a restauração do deposto regime monárquico. Em 1912 teve lugar uma invasão de exilados monárquicos a partir da Galiza que pretendia sublevar o norte de Portugal. Este artigo pretende apresentar o decurso desses acontecimentos no concelho de Cabeceiras de Basto, distrito de Braga, mas também analisar as dinâmicas político-sociais locais que justificam o comportamento da população, o seu desapego às instituições republicanas e a influência de certas individualidades sobre os habitantes. Este trabalho foi possível mediante o estudo comparativo e qualitativo de fontes documentais do município, diários do governo e jornais locais da época.

  1. Spectral line survey of the ultracompact HII region Mon R2

    CERN Document Server

    Ginard, D; Fuente, A; Cernicharo, J; Alonso-Albi, T; Pilleri, P; Gerin, M; García-Burillo, S; Ossenkopf, V; Rizzo, J R; Kramer, C; Goicoechea, J R; Pety, J; Berné, O; Joblin, C

    2012-01-01

    Ultracompact (UC) HII regions constitute one of the earliest phases in the formation of a massive star and are characterized by extreme physical conditions (Go>10^5 Habing field and n>10^6 cm^-3). The UC HII Mon R2 is the closest one and therefore an excellent target to study the chemistry in these complex regions. We carried out a 3mm and 1mm spectral survey using the IRAM 30-m telescope towards three positions that represent different physical environments in Mon R2: (i) the ionization front (IF) at (0",0"); two peaks in the molecular cloud (ii) MP1 at the offset (+15",-15") and (iii) MP2 at the farther offset (0",40"). In addition, we carried out extensive modeling to explain the chemical differences between the three observed regions. We detected more than thirty different species. We detected SO+ and C4H suggesting that UV radiation plays an important role in the molecular chemistry of this region. We detected the typical PDR molecules CN, HCN, HCO, C2H, and c-C3H2. While the IF and the MP1 have a chemis...

  2. A Spitzer View of Mon OB1 East/NGC 2264

    CERN Document Server

    Rapson, Valerie A; Gutermuth, Robert A; Megeath, S Thomas; Allen, Thomas S; Myers, Philip C; Allen, Lori E

    2014-01-01

    We present Spitzer 3.6, 4.5, 5.8, 8.0, and 24 micron images of the Mon OB1 East giant molecular cloud, which contains the young star forming region NGC 2264, as well as more extended star formation. With Spitzer data and 2MASS photometry, we identify and classify young stellar objects (YSOs) with dusty circumstellar disks and/or envelopes in Mon OB1 East by their infrared-excess emission and study their distribution with respect to cloud material. We find a correlation between the local surface density of YSOs and column density of molecular gas as traced by dust extinction that is roughly described as a power law in these quantities. NGC 2264 follows a power law index of ~2.7, exhibiting a large YSO surface density for a given gas column density. Outside of NGC 2264 where the surface density of YSOs is lower, the power law is shallower and the region exhibits a larger gas column density for a YSO surface density, suggesting the star formation is more recent. In order to measure the fraction of cloud members ...

  3. MonDossierMedical.ch - The Personal Health Record for Every Geneva Citizen.

    Science.gov (United States)

    Rosemberg, Aurélie; Schmid, Adian; Plaut, Olivier

    2016-01-01

    MonDossierMedical.ch is a project led by the canton of Geneva, making it possible for every patient to access his own electronic health record (EHR) and to share the medical files with his doctors. It was introduced across the canton in mid-2013, and provided to all patients free of charge. It is based on the first Swiss-wide eHealth-compliant pilot project "e-toile". The canton of Geneva developed "e-toile" as a public-private partnership together with Swiss Post and it was launched in 2011 in some of the canton's municipalities. Back then, Geneva's EHR represented the first Swiss attempt to link all healthcare professionals in the treatment chain. Today, it serves more than 6,000 patients and 400 physicians. This number is growing regularly, as well as the health care institutions (private hospitals, labs) joining the community. The project fits into the national strategy of Switzerland in establishing a national EHR by linking regional implementations like MonDossierMedical.

  4. Motivational Objects in Natural Scenes (MONS: A Database of >800 Objects

    Directory of Open Access Journals (Sweden)

    Judith Schomaker

    2017-09-01

    Full Text Available In daily life, we are surrounded by objects with pre-existing motivational associations. However, these are rarely controlled for in experiments with natural stimuli. Research on natural stimuli would therefore benefit from stimuli with well-defined motivational properties; in turn, such stimuli also open new paths in research on motivation. Here we introduce a database of Motivational Objects in Natural Scenes (MONS. The database consists of 107 scenes. Each scene contains 2 to 7 objects placed at approximately equal distance from the scene center. Each scene was photographed creating 3 versions, with one object (“critical object” being replaced to vary the overall motivational value of the scene (appetitive, aversive, and neutral, while maintaining high visual similarity between the three versions. Ratings on motivation, valence, arousal and recognizability were obtained using internet-based questionnaires. Since the main objective was to provide stimuli of well-defined motivational value, three motivation scales were used: (1 Desire to own the object; (2 Approach/Avoid; (3 Desire to interact with the object. Three sets of ratings were obtained in independent sets of observers: for all 805 objects presented on a neutral background, for 321 critical objects presented in their scene context, and for the entire scenes. On the basis of the motivational ratings, objects were subdivided into aversive, neutral, and appetitive categories. The MONS database will provide a standardized basis for future studies on motivational value under realistic conditions.

  5. Tóxicos detectados en muertes relacionadas con fuegos e intoxicaciones por monóxido de carbono

    OpenAIRE

    2003-01-01

    Se presentan en este trabajo las conclusiones del estudio realizado sobre los resultados de los análisis efectuados en muestras de sangre de 882 personas que resultaron fallecidas o intoxicadas en fuegos o a consecuencia de la inhalación de monóxido de carbono y/o de otros gases de combustión. En ellas se investigó la presencia de monóxido de carbono, cianuro y otros tóxicos tales como el alcohol etílico y los psicofármacos. Se realizan dos subgrupos, el de muertes produc...

  6. Establishment of Event-specific Quantitative PCR of Genetically Modified Maize (Zea mays) Event MON863%转基因玉米MON863品系特异定量PCR方法的建立

    Institute of Scientific and Technical Information of China (English)

    宋君; 雷绍荣; 刘勇; 尹全; 王东; 张富丽; 刘文娟; 常丽娟

    2011-01-01

    Event-specific quantitative PCR detection method of genetically modified maize (Event MON863) was established. PCR primers and Taqman probe were designed according to the flanking sequence of exogenous gene of Event MON863. Sample (CRM) containing 1% of Event MON863 (uncertainty was 10%) was tested. The results showed that the slope of standard curve obtained was in the range of -3.6-3.1. Correlation coefficient was greater than 0.99; And the amplification efficiency of this method was 90%~l 10% (averaged at 102.2%). The detection result of sample was 1.113%, closed to the true content (1%). It was proved that the sensitivity and precision of this method was relatively high and could be used to test GMO samples.%根据转基因玉米MON863外源基因的旁侧序列,设计引物和TaqMan探针,建立了转基因玉米MON863品系特异定量PCR检测方法,并采用该法检测了1%含量的MON863玉米粉末(不确定度为10%).结果显示,采用构建的方法获得的标准曲线斜率为-3.6~-3.1,相关系数大于0.99,扩增效率为102.2%,在90%~110%内.样品的定量检测结果1.113%接近已知含量1%(不确定度为10%),表明建立的转基因玉米MON863品系特异定量PCR检测方法的灵敏度和准确度高可以在日常检验中推产应用.

  7. [Visual pattern analysis and reasoning: Ravens' Coloured Progressive Matrices in old-age and very-old-age adults].

    Science.gov (United States)

    Diesfeldt, H F; Vink, M T

    1989-12-06

    Sixty-five non-demented elderly adults, born between 1895 and 1918 (mean age +/- sd: 80.0 +/- 5.4) were tested with Raven's Coloured Progressive Matrices (CPM). Subjects were recruited from homes for the aged and were rated by the staff as free from any symptoms of dementia or other psychiatric disease. Mean number of years of education was 8.2 (range 5 to 18). CPM scores ranged from 9 to 35 with mean +/- sd of 25.9 +/- 5.9. Subjects who had received more formal education performed better on the CPM (Pearson's r: 0.49). When education was controlled for in the analysis, the correlation between age and performance was attenuated and did not reach statistical significance (Pearson's r: -0.24). Test results appeared to be specific for generations, regardless of age. Mean performance in this sample was significantly higher than less recently published norms suggest. Analysis of item content revealed that the CPM consists of three main types of problems: two of a predominantly visuospatial type (12 items of simple continuous pattern-completion and 15 concrete items showing progressive changes in one or two directions) and 9 items of an abstract reasoning type. The concrete visuospatial items appear very useful in the assessment of visuoperceptive dysfunction, as for example in visual apperceptive agnosia. The abstract matrices were very difficult for most of our elderly subjects, so that these items cannot be used to detect deviations from normal old age.

  8. Ravens, New Caledonian crows and jackdaws parallel great apes in motor self-regulation despite smaller brains.

    Science.gov (United States)

    Kabadayi, Can; Taylor, Lucy A; von Bayern, Auguste M P; Osvath, Mathias

    2016-04-01

    Overriding motor impulses instigated by salient perceptual stimuli represent a fundamental inhibitory skill. Such motor self-regulation facilitates more rational behaviour, as it brings economy into the bodily interaction with the physical and social world. It also underlies certain complex cognitive processes including decision making. Recently, MacLean et al. (MacLean et al. 2014 Proc. Natl Acad. Sci. USA 111, 2140-2148. (doi:10.1073/pnas.1323533111)) conducted a large-scale study involving 36 species, comparing motor self-regulation across taxa. They concluded that absolute brain size predicts level of performance. The great apes were most successful. Only a few of the species tested were birds. Given birds' small brain size-in absolute terms-yet flexible behaviour, their motor self-regulation calls for closer study. Corvids exhibit some of the largest relative avian brain sizes-although small in absolute measure-as well as the most flexible cognition in the animal kingdom. We therefore tested ravens, New Caledonian crows and jackdaws in the so-called cylinder task. We found performance indistinguishable from that of great apes despite the much smaller brains. We found both absolute and relative brain volume to be a reliable predictor of performance within Aves. The complex cognition of corvids is often likened to that of great apes; our results show further that they share similar fundamental cognitive mechanisms.

  9. Right hemispace presentation and left cueing on Raven's Coloured Progressive Matrices among right brain-damaged neglect patients.

    Science.gov (United States)

    Soukup, V M; Harrell, E H; Clark, T

    1994-07-01

    Despite the substantial experimental literature that has accrued on factors associated with a reduction in neglect, few empirical studies have attempted to extrapolate these findings to clinical assessment and evaluate the efficacy of neglect-reducing strategies on patient performance. The current study developed a modified version of the Raven's Coloured Progressive Matrices (RCPM) by aligning the response alternatives in a column, in the right hemispace. Three groups of patients (right brain-damaged (RBD) with neglect, RBD without neglect, and orthopaedic controls) were administered abbreviated versions of the revised format, and performance was compared to the standard presentation format. The efficacy of left cues with the revised format was also investigated. Presence of neglect was assessed via the Schenkenberg Line Bisection Task and the Bells Test. Results showed a significant performance decrement among RBD neglect patients under all conditions. However, contrary to predictions, RBD neglect patients did not reveal significantly better performance on the revised version as compared to the standard presentation format. No significant effects associated with left side cueing were observed. The finding that no significant performance changes emerged as a function of stimulus modification and verbal prompts suggests that, although these manipulations may be employed by clinicians to maximize patient performance, empirical support for the efficacy of these procedures is lacking.

  10. Curiosity explores the base of Aeolis Mons, Gale crater, Mars: Recent Geological and Geochemical Mission Results

    Science.gov (United States)

    Gupta, Sanjeev; Vasavada, Ashwin; Crisp, Joy; Grotzinger, John

    2016-04-01

    The Mars Science Laboratory (MSL) Curiosity rover has been exploring sedimentary rocks at the foothills of Aolis Mons since August 2014. Here, an array of fluvial, lacustrine and aeolian strata that show a complex pattern of post-depositional alteration are present. This presentation will summarize the most recent geological and geochemical findings of the MSL mission. Basal outcrops that form the lowest stratigraphic unit of Aeolis Mons, the Murray formation, are characterized predominantly by mudstones with minor intercalated sandstones. The mudstone facies, originally identified at the Pahrump Hills field site, show abundant fine-scale planar laminations throughout the Murray formation succession and is interpreted to record deposition in an ancient lacustrine system in Gale crater. Interbedded cross-stratified sandstones are considered to record fluvio-deltaic incursions into the lake. The lacustrine deposits of the Murray formation are unconformably overlain by much younger sandstones of the Stimson formation. Orbital mapping and in situ observations indicate that the basal strata of the Stimson formation show complex onlap relationships with the underlying Murray formation strata signifying that there was metre-scale palaeotopographic relief on the unconformity surface upon which the Stimson accumulated. The Stimson formation itself is characterized by cross-bedded sandstones with cross-bed sets tens of centimetres in thickness. Sedimentological observations suggest that the Stimson dominantly records deposition by aeolian dunes. Curiosity has made detailed measurements of the geochemistry of the Murray and Stimson formations and associated diagenetic features. Perhaps most surprising has been the discovery of extensive silica enrichment both within mudstones of the Murray formation, perhaps of primary sedimentary or later diagenetic origin, also in as fracture-related diagenetic halos within the Stimson formation. We will describe the nature of this silica

  11. Vessels of Transfer: Allegories of Afrofuturism in Jeff Mills and Janelle Monáe

    Directory of Open Access Journals (Sweden)

    tobias c. van Veen

    2013-11-01

    Full Text Available 0 0 1 228 1304 bacon 10 3 1529 14.0 Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} The performances, music, and subjectivities of Detroit techno producer Jeff Mills—radio turntablist The Wizard, space-and-time traveller The Messenger, founding member of Detroit techno outfit Underground Resistance and head of AXIS Records—and Janelle Monáe—android #57821, Cindi Mayweather, denizen and “cyber slavegirl” of Metropolis—are infused with the black Atlantic imaginary of Afrofuturism. We might understand Mills and Monáe as disseminating, in the words of Paul Gilroy, an Afrofuturist “cultural broadcast” that feeds “a new metaphysics of blackness” enacted “within the underground, alternative, public spaces constituted around an expressive culture . . . dominated by music” (Gilroy 1993: 83. Yet what precisely is meant by “blackness”—the black Atlantic of Gilroy’s Afrodiasporic cultural network—in a context that is Afrofuturist? Monáe’s Cindi Mayweather is an android on the run from human authorities, and Mills has become The Messenger, a time-and-space traveller returning from the future to forewarn Earth of catastrophic first contact with extraterrestials. The repetitious signature of electronic music, through its sonic affect, likewise appears to amplify nonrepresentational strategies. At stake is the role of allegory and its infrastructure: does Afrofuturism, and its incarnates, “represent” blackness? Or does it tend toward an unhinging of allegory, in which the coordinates of blackness, but also those of linear temporality and terrestial subjectivity

  12. Drosophila Mon2 couples Oskar-induced endocytosis with actin remodeling for cortical anchorage of the germ plasm.

    Science.gov (United States)

    Tanaka, Tsubasa; Kato, Yasuko; Matsuda, Kazuki; Hanyu-Nakamura, Kazuko; Nakamura, Akira

    2011-06-01

    Drosophila pole (germ) plasm contains germline and abdominal determinants. Its assembly begins with the localization and translation of oskar (osk) RNA at the oocyte posterior, to which the pole plasm must be restricted for proper embryonic development. Osk stimulates endocytosis, which in turn promotes actin remodeling to form long F-actin projections at the oocyte posterior pole. Although the endocytosis-coupled actin remodeling appears to be crucial for the pole plasm anchoring, the mechanism linking Osk-induced endocytic activity and actin remodeling is unknown. Here, we report that a Golgi-endosomal protein, Mon2, acts downstream of Osk to remodel cortical actin and to anchor the pole plasm. Mon2 interacts with two actin nucleators known to be involved in osk RNA localization in the oocyte, Cappuccino (Capu) and Spire (Spir), and promotes the accumulation of the small GTPase Rho1 at the oocyte posterior. We also found that these actin regulators are required for Osk-dependent formation of long F-actin projections and cortical anchoring of pole plasm components. We propose that, in response to the Osk-mediated endocytic activation, vesicle-localized Mon2 acts as a scaffold that instructs the actin-remodeling complex to form long F-actin projections. This Mon2-mediated coupling event is crucial to restrict the pole plasm to the oocyte posterior cortex.

  13. Impact of MON863 transgenic roots is equivalent on western corn rootworm larvae for a wide range of maize phenologies.

    Science.gov (United States)

    Hibbard, Bruce E; El Khishen, Ahmed A; Vaughn, Ty T

    2009-08-01

    The effects of maize, Zea mays L., phenology on establishment, damage, and adult emergence of the western corn rootworm, Diabrotica virgifera virgifera LeConte, on MON863 transgenic maize expressing the Cry3Bb1 protein and its isoline was evaluated in field trials in 2002 and 2003. As expected, plant damage, western corn rootworm larval recovery, and adult emergence were significantly lower on MON863 than isoline maize. The average weight of larvae and adults recovered from MON863 and isoline maize was generally not significantly different. If western corn rootworm larvae were able to establish on transgenic rootworm-resistant plants, larval growth was relatively normal. Plant damage, the number of western corn rootworm larvae recovered, and adult emergence from MON863 did not significantly differ between egg hatch times from widely varying phenologies in either year of the study. Although the extractable level of Cry3Bb1 decreased significantly from vegetative (V)4 to V9 maize in previous studies, in the current study, the amount of Cry3Bb1 did not vary from V3 to R3 in a way that affected neonate survival by western corn rootworm larvae in the field.

  14. Assessing Animal Welfare Impacts in the Management of European Rabbits (Oryctolagus cuniculus, European Moles (Talpa europaea and Carrion Crows (Corvus corone.

    Directory of Open Access Journals (Sweden)

    Sandra E Baker

    Full Text Available Human-wildlife conflict is a global issue. Attempts to manage this conflict impact upon wild animal welfare, an issue receiving little attention until relatively recently. Where human activities harm animal welfare these effects should be minimised where possible. However, little is known about the welfare impacts of different wildlife management interventions, and opinions on impacts vary widely. Welfare impacts therefore need to be assessed objectively. Our objectives were to: 1 establish whether an existing welfare assessment model could differentiate and rank the impacts of different wildlife management interventions (for decision-making purposes; 2 identify and evaluate any additional benefits of making formal welfare assessments; and 3 illustrate issues raised by application of the model. We applied the welfare assessment model to interventions commonly used with rabbits (Oryctolagus cuniculus, moles (Talpa europaea and crows (Corvus corone in the UK. The model ranked interventions for rabbits (least impact first: fencing, head shot, chest shot and crows (shooting, scaring, live trapping with cervical dislocation. For moles, managing molehills and tunnels scored least impact. Both spring trapping, and live trapping followed by translocation, scored greater impacts, but these could not be compared directly as they scored on different axes of the model. Some rankings appeared counter-intuitive, highlighting the need for objective formal welfare assessments. As well as ranking the humaneness of interventions, the model highlighted future research needs and how Standard Operating Procedures might be improved. The model is a milestone in assessing wildlife management welfare impacts, but our research revealed some limitations of the model and we discuss likely challenges in resolving these. In future, the model might be developed to improve its utility, e.g. by refining the time-scales. It might also be used to reach consensus among

  15. The use of feather as an indicator for heavy metal contamination in house crow (Corvus splendens) in the Klang area, Selangor, Malaysia.

    Science.gov (United States)

    Janaydeh, Mohammed; Ismail, Ahmad; Zulkifli, Syaizwan Zahmir; Bejo, Mohd Hair; Aziz, Nor Azwady Abd; Taneenah, Ayat

    2016-11-01

    The Klang area of Peninsular Malaysia has experienced rapid industrial growth with intense activities, which can increase the concentration of pollutants in the environment that significantly impact on habitats and the human health. The purpose of this study was to determine the levels of selected heavy metals (Cu, Zn, Ni, Fe, and Pb) in the heart, lung, brain, liver, kidney, muscle tissues, and feathers of house crow, Corvus splendens, in Klang, Peninsular Malaysia. House crow samples were collected from the Klang area through the Department of Public Health at Majlis Perbandaran Klang. Quantitative determination of heavy metals was carried out using atomic absorption spectrophotometer (AAS). The result shows the presence of heavy metals in all biological samples of house crows. For heavy metals in all the house crow tissues analyzed, Fe concentrations were the highest, followed by those of Zn, Cu, Pb, and Ni. The feathers and kidney accumulated high concentrations of Pb, whereas the liver accumulated high concentrations of essential heavy metals (Fe > Zn > Cu > Ni). Significant variations were also detected in the concentrations of Pb among adult and juvenile and male and female bird samples. The results also revealed significant positive correlations between Pb metal concentration in the breast feathers and all internal organs. Accumulation of toxic heavy metals in feathers reflected storing and elimination processes, while the accumulation of toxic heavy metals in the kidney can be consequential to chronic exposure. The present study clearly shows the usefulness of house crow breast feather as a suitable indicator for heavy metal accumulation in the internal organs of house crows in the Klang area.

  16. Assessing Animal Welfare Impacts in the Management of European Rabbits (Oryctolagus cuniculus), European Moles (Talpa europaea) and Carrion Crows (Corvus corone).

    Science.gov (United States)

    Baker, Sandra E; Sharp, Trudy M; Macdonald, David W

    2016-01-01

    Human-wildlife conflict is a global issue. Attempts to manage this conflict impact upon wild animal welfare, an issue receiving little attention until relatively recently. Where human activities harm animal welfare these effects should be minimised where possible. However, little is known about the welfare impacts of different wildlife management interventions, and opinions on impacts vary widely. Welfare impacts therefore need to be assessed objectively. Our objectives were to: 1) establish whether an existing welfare assessment model could differentiate and rank the impacts of different wildlife management interventions (for decision-making purposes); 2) identify and evaluate any additional benefits of making formal welfare assessments; and 3) illustrate issues raised by application of the model. We applied the welfare assessment model to interventions commonly used with rabbits (Oryctolagus cuniculus), moles (Talpa europaea) and crows (Corvus corone) in the UK. The model ranked interventions for rabbits (least impact first: fencing, head shot, chest shot) and crows (shooting, scaring, live trapping with cervical dislocation). For moles, managing molehills and tunnels scored least impact. Both spring trapping, and live trapping followed by translocation, scored greater impacts, but these could not be compared directly as they scored on different axes of the model. Some rankings appeared counter-intuitive, highlighting the need for objective formal welfare assessments. As well as ranking the humaneness of interventions, the model highlighted future research needs and how Standard Operating Procedures might be improved. The model is a milestone in assessing wildlife management welfare impacts, but our research revealed some limitations of the model and we discuss likely challenges in resolving these. In future, the model might be developed to improve its utility, e.g. by refining the time-scales. It might also be used to reach consensus among stakeholders about

  17. Assessing Animal Welfare Impacts in the Management of European Rabbits (Oryctolagus cuniculus), European Moles (Talpa europaea) and Carrion Crows (Corvus corone)

    Science.gov (United States)

    Baker, Sandra E.; Sharp, Trudy M.; Macdonald, David W.

    2016-01-01

    Human-wildlife conflict is a global issue. Attempts to manage this conflict impact upon wild animal welfare, an issue receiving little attention until relatively recently. Where human activities harm animal welfare these effects should be minimised where possible. However, little is known about the welfare impacts of different wildlife management interventions, and opinions on impacts vary widely. Welfare impacts therefore need to be assessed objectively. Our objectives were to: 1) establish whether an existing welfare assessment model could differentiate and rank the impacts of different wildlife management interventions (for decision-making purposes); 2) identify and evaluate any additional benefits of making formal welfare assessments; and 3) illustrate issues raised by application of the model. We applied the welfare assessment model to interventions commonly used with rabbits (Oryctolagus cuniculus), moles (Talpa europaea) and crows (Corvus corone) in the UK. The model ranked interventions for rabbits (least impact first: fencing, head shot, chest shot) and crows (shooting, scaring, live trapping with cervical dislocation). For moles, managing molehills and tunnels scored least impact. Both spring trapping, and live trapping followed by translocation, scored greater impacts, but these could not be compared directly as they scored on different axes of the model. Some rankings appeared counter-intuitive, highlighting the need for objective formal welfare assessments. As well as ranking the humaneness of interventions, the model highlighted future research needs and how Standard Operating Procedures might be improved. The model is a milestone in assessing wildlife management welfare impacts, but our research revealed some limitations of the model and we discuss likely challenges in resolving these. In future, the model might be developed to improve its utility, e.g. by refining the time-scales. It might also be used to reach consensus among stakeholders about

  18. Measurement of the 97Mo(n ,γ ) reaction with the DANCE γ calorimeter array

    Science.gov (United States)

    Walker, C. L.; Krtička, M.; Baramsai, B.; Bečvář, F.; Bredeweg, T. A.; Chyzh, A.; Haight, R. C.; Jandel, M.; Kroll, J.; Mitchell, G. E.; O'Donnell, J. M.; Rundberg, R. S.; Ullmann, J. L.; Valenta, S.; Wilhelmy, J. B.

    2015-07-01

    Spectra of γ rays following the 97Mo(n ,γ ) reaction were measured as a function of incident neutron energy with the DANCE (Detector for Advanced Neutron Capture Experiments) array of 160 BaF2 scintillation detectors at the Los Alamos Neutron Science Center using an enriched 97Mo target. These spectra were used for the assignment of spins of the 97Mo resonances up to neutron energy En=1.7 keV, as well as in the study of photon strength functions (PSFs) in 98Mo. Analysis of the spectra with the nuclear statistical model showed that they can be well reproduced with the same PSF models which well described the γ decay following slow neutron capture in 95Mo. On the other hand, the spectra are inconsistent with PSFs describing some other experimental data in 98Mo.

  19. Pokémon Go: uma análise da realidade como entretenimento

    Directory of Open Access Journals (Sweden)

    Karen Danielle Magri Ferreira Razera

    2017-07-01

    Full Text Available This article aims to analyze the repercussion of the Pokémon Go game to investigate the influence of the media on the behavior of the players, based on articles from the newspaper Folha de São Paulo. The critical theory of society was the theoretical basis that guided the analyzes, because it explains the social contradictions of this society of classes and their concepts about the formation of individuals. It was observed that the articles of the newspaper, mostly encourage the players in positive aspects of the game. The criticism of the game can be understood in its contradiction, because no one escapes of the cultural industry. From the analysis, it’s observed several characteristics of the cultural industry, which is the entertainment industry, making reality itself entertaining and encouraging the understanding that life don’t be taken so seriously.

  20. Abundances from disentangled component spectra: the eclipsing binary V578 Mon

    CERN Document Server

    Pavlovski, K

    2005-01-01

    Chemical abundances of the early-B type components of the binary V578 Mon are derived from disentangled component spectra. This is a pilot study showing that, even with moderately high line-broadening, metal abundances can be derived from disentangled spectra with a precision 0.1 dex, relative to sharp-lined single stars of the same spectral type. This binary is well-suited for such an assessment because of its youth as a member of the Rosette Nebula cluster NGC 2244, strengthening the expectation of an unevolved ZAMS chemical composition. The method is of interest to study rotational driven mixing in main-sequence stars, with fundamental stellar parameters known with higher accuracy in (eclipsing) binaries. The paper also includes an evaluation of the bias that might be present in disentangled spectra.

  1. Mazohizumu no mon: Masochistic and Sadistic Representations of Women in Japanese Exploitation Films and Reidissu komikku.

    Directory of Open Access Journals (Sweden)

    Emerald King

    2011-03-01

    Full Text Available p { margin-bottom: 0.08in; }

    This article explores the representation of women in imagery through a juxtaposition of Japanese exploitation films (such as Suzuki Seijun’s 1964 Nikutai no Mon with modern day ‘ladies comics.' Both mediums share similar imagery and stylistic concepts but have a markedly different target audience/consumer base; most (sexploitation films were/are made with a male audience in mind, while ladies comics are, as the name suggests, manufactured solely for a female audience. In particular, I am interested in the use of masochistic constructs and the ways in which the use of this imagery differ when the target audience is male as opposed to female.

  2. Soja MON 87705 au Profil d’Acide Gras Amélioré

    OpenAIRE

    Canada, Publié par la Direction des aliments de Santé

    2014-01-01

    Santé Canada a avisé Monsanto Canada Inc. qu’il ne s’oppose pas à l’utilisation alimentaire du soja MON 87705 au profil d’acides gras amélioré. Le Ministère a réalisé une évaluation approfondie de cette lignée de soja conformément aux Lignes directrices sur l’évaluation de l’innocuité des aliments nouveaux. Ces lignes directrices sont fondées sur les principes admis internationalement de l’établissement de l’innocuité d’aliments comportant des caractères nouveaux. L...

  3. El origen glaciar de la aureola del volcán Arsia Mons, Marte

    Directory of Open Access Journals (Sweden)

    Anguita Virella, F.

    1994-08-01

    Full Text Available Huge lobate deposits called aureoles are covering the base of the giant Martian volcanic constructs of Tharsis dome. The origin of these structures has been a matter of debate between two competing hypotheses: volcanic landslides or mountain glaciers. Here we consider the most important of the aureoles, near Arsia Mons, concluding that the glacier model explains best the deposit features, such as the layering, the ridges (interpreted as glaciotectonic ones, and the lobated terrain. We then discuss the fit of these proposed glacier deposits in the present paleoclimatic Martian models. The aureoles could be key elements in the confirmation of the «Baker cycle» model of repeated episodes of temperate, humid, sea-dominated climates coincident in time with the outflow channels activity.Al pie de los grandes volcanes marcianos del domo de Tharsis aparecen unas formas lobuladas que han recibido el nombre de aureolas. El origen de estas estructuras ha sido objeto de un largo debate entre dos hipótesis principales que las interpretan como deslizamientos de ladera o como glaciares de montaña. En este trabajo se estudia la mejor desarrollada de estas aureolas, la de Arsia Mons, llegándose a la conclusión de que la hipótesis glaciar explica mejor las características del depósito, y en concreto la existencia de estratificación, las crestas (que se interpretan como glaciotectónicas y los terrenos lobulados. Por último se discute la conexión de estos depósitos con los modelos paleoclimáticos actuales sobre Marte, lo que lleva a la conclusión de que las aureolas deben ser depósitos glaciares recientes relacionados con repetidos episodios de clima cálido (ciclos de Baker, provocados por la acción de los canales de desbordamiento.

  4. FerryMon: Using ferries as hydrochemical observatories in estuarine and coastal waters

    Science.gov (United States)

    Paerl, H.; Guajardo, R.; Peierls, B.; Rossignol, K.; Braddy, J.

    2007-12-01

    Estuaries are among the most productive and resourceful aquatic ecosystems on Earth. They are strongly influenced by hydrochemical stressors, including nutrient enrichment and climatic factors such as droughts, storms and floods. Clarifying how estuaries respond to these stresses will provide an understanding of how hydrologic and chemical processes control ecological condition and change of these ecosystems. This understanding will greatly benefit from a spatially and temporally-intensive observational program, which, when coupled to modeling will help predict future responses to external anthropogenic (nutrient) and climatic (hydrologic) perturbations. North Carolina's Pamlico Sound System (PSS) is the Nation's second largest estuary. It exemplifies the impacts of human development (eutrophication) and large climatic perturbations (hurricanes). We are using 3 NC DOT ferries to conduct unattended hydrochemical monitoring of water quality, habitat and ecological condition of the PSS. This program, FerryMon (www.ferrymon.org), uses temperature, salinity, pH, dissolved oxygen, turbidity, and chlorophyll a sensors coupled to discrete sampling of nutrients, organics, photopigment and molecular indicators to assess water quality in a near real-time manner over a range of relevant physical, chemical and biological time scales. An autonomous vertical profiler (AVP), equipped with sensors similar to those on the ferries, provides complementary vertical profile data. This capability is timely given unprecedented human development and a period of elevated tropical storm and hurricane activity affecting coastal water quality and habitat conditions and fisheries resources. FerryMon is used to calibrate remotely sensed indicators of water quality (photopigments, turbidity), facilitating scaling up to the ecosystem level. It is integrated with complementary observational programs (LTERs, NEON, ORION, WATERS, SEACOOS), and it supports interdisciplinary research aimed at

  5. Expression of Cry3Bb1 in transgenic corn MON88017.

    Science.gov (United States)

    Nguyen, Hang Thu; Jehle, Johannes A

    2009-11-11

    To evaluate the effects of transgenic expression of Coleopteran-specific Bt protein Cry3Bb1 on target and nontarget insects in fields with Bt crops, it is necessary to quantify the Cry3Bb1 contents in the plants. Here, we describe the optimization and validation of the quantitative detection of Cry3Bb1 by adapting the commercially available qualitative PathoScreen double antibody sandwich-enzyme-linked immunosorbent assay (DAS-ELISA) for quantitative measurements. The optimized method had an average accuracy of 84-109% and was used to quantify the Cry3Bb1 contents of different tissues of Bt corn MON88017 at four developmental stages during three years (2005-2007) in a field trial in Germany. The Cry3Bb1 contents were determined based on both dry weight and fresh weight. Cry3Bb1 expression was highest in young leaves (228.4 microg/g dw and 35.5 microg/g fw) and lowest in pollen (3.8 microg/g fw). In root tissues, the Cry3Bb1 content declined during the growing season from 130 to 40 microg/g dw. A significant decline of Cry3Bb1 contents was also observed during the growing season in other plant tissues. The Cry3Bb1 contents of different plant tissues strongly correlated to each other. On the basis of the total corn biomass produced on 1 hectare, it was estimated that up to 905 g of Cry3Bb1 is produced per hectare Bt corn MON88017.

  6. Preservation of ancient ice at Pavonis and Arsia Mons: Tropical mountain glacier deposits on Mars

    Science.gov (United States)

    Head, James W.; Weiss, David K.

    2014-11-01

    Large tropical mountain glacier (TMG) deposits on the northwest flanks of the Tharsis Montes and Olympus Mons volcanoes are interpreted to be the record of ancient climates characteristic of Mars several hundred million years ago when planetary spin-axis obliquity was ~45°. During this era, polar volatiles (predominantly H2O) were mobilized and transferred equatorward, undergoing adiabatic cooling on the Tharsis volcano flanks, and precipitating snow and ice to form cold-based tropical mountain glaciers up to several kilometers in thickness. Subsequent climate change resulted in retreat, sublimation and collapse of the tropical mountain glaciers, leaving the three typical facies observed today: (1) concentric ridges, the ridged facies, interpreted as drop moraines; (2) knobby facies, interpreted as debris-dominated sublimation residue; and (3) the smooth facies, interpreted as remnant alpine glacial deposits. Ring-mold craters (RMCs) are distinctive features formed by impacts into debris-covered ice. We describe a set of relatively fresh ring-mold craters superposed on the Arsia and Pavonis Mons TMG deposits; we interpret these to indicate that the impact events penetrated a veneer of sublimation lag and excavated buried remnant glacial ice, despite the lack of detection of buried ice by orbital radar instruments. The diameter distribution of the RMCs suggest that the remnant ice lies at a depth of at least 16 m. The TMG deposit ages suggest that these ice deposits date from a period in the range of 125-220 million years before the present; the remnant ice may thus preserve records of the ancient atmospheric gas content and microbiota, as is common in terrestrial glacial ice. Preservation of this ice and the lack of any associated fluvial features suggest that the post-glacial climate has been cold, and related surface temperatures have not been sufficient to bring the buried deposits to the melting point of water.

  7. More diversity for volcanism: Ceres' Ahuna Mons from Dawn's Framing Camera data

    Science.gov (United States)

    Ruesch, Ottaviano; Platz, Thomas; Schenk, Paul M.; McFadden, Lucy Ann; Castillo-Rogez, Julie; Quick, Lynnae C.; Byrne, Shane; Preusker, Frank; O'Brien, David P.; Schmedemann, Nico; Williams, David A.; Li, Jian-Yang; Bland, Michael T.; Hiesinger, Harald; Kneissl, Thomas; Neesemann, Adrian; Schaefer, Michael; Pasckert, Jan Hendrik; Schmidt, Britney E.; Buczkowski, Debra; Sykes, Mark V.; Nathues, Andreas; Roatsch, Thomas; Hoffmann, Martin; Raymond, Carol; Russell, Christopher T.

    2016-10-01

    In the last decades, the exploration of planets and moons by spacecraft revealed a variety of volcanic expressions. The recent visit to dwarf planet Ceres by the Dawn spacecraft is shedding light on a possible new, compositionally different volcanism falling into the cryovolcanism field. The dwarf planet's properties, i.e., low bulk density, low internal temperatures and volatile-rich composition relative to terrestrial planets, would only generate melts composed of brines. On the other hand, Ceres' carbonate- and clay-rich surface mineralogy suggests a cryovolcanism different from that of water-ice dominated icy satellites.The Dawn Framing Camera (FC) provides a complete global dataset for photo-geological investigations of Ceres, including a 35 m/pixel visible coverage, a 135 m/pixel multi-spectral coverage, and a 135 m/pixel global digital elevation model from stereo-photogrammetry. Domical landforms up to a few kilometers in elevation and tens of kilometers in diameter (referred to as tholi and montes) are found scattered across Ceres' surface. Ahuna Mons is a 4-km topographic high distinct in its shape and morphology from other topographic features on Ceres. The mountain consists of two morphological units: a flank unit of unconsolidated material and a fractured (i.e., consolidated) summit unit. Steep slopes at the angle of repose characterize the flank unit, whereas the summit unit has a convex shape. The flank and summit morphologies and the morphometry of the mountain can be explained by the formation of a cryovolcanic dome, analogous to a silicic volcanic dome found on terrestrial planets. Albedo and crater size-frequency distribution measurements from FC imagery reveal geologically-recent activity on Ahuna Mons, occurring sometime within the last few hundreds Myr. The characteristics of and implications for this possible cryomagma for Ceres thermal and chemical evolution will be discussed.

  8. Mammalian Mon2/Ysl2 regulates endosome-to-Golgi trafficking but possesses no guanine nucleotide exchange activity toward Arl1 GTPase

    Science.gov (United States)

    Mahajan, Divyanshu; Boh, Boon Kim; Zhou, Yan; Chen, Li; Cornvik, Tobias Carl; Hong, Wanjin; Lu, Lei

    2013-11-01

    Arl1 is a member of Arf family small GTPases that is essential for the organization and function of Golgi complex. Mon2/Ysl2, which shares significant homology with Sec7 family Arf guanine nucleotide exchange factors, was poorly characterized in mammalian cells. Here, we report the first in depth characterization of mammalian Mon2. We found that Mon2 localized to trans-Golgi network which was dependent on both its N and C termini. The depletion of Mon2 did not affect the Golgi localized or cellular active form of Arl1. Furthermore, our in vitro assay demonstrated that recombinant Mon2 did not promote guanine nucleotide exchange of Arl1. Therefore, our results suggest that Mon2 could be neither necessary nor sufficient for the guanine nucleotide exchange of Arl1. We demonstrated that Mon2 was involved in endosome-to-Golgi trafficking as its depletion accelerated the delivery of furin and CI-M6PR to Golgi after endocytosis.

  9. Genetic and environmental contributions to population group differences on the Raven's Progressive Matrices estimated from twins reared together and apart.

    Science.gov (United States)

    Rushton, J Philippe; Bons, Trudy Ann; Vernon, Philip A; Cvorović, Jelena

    2007-07-22

    We carried out two studies to test the hypothesis that genetic and environmental influences explain population group differences in general mental ability just as they do individual differences within a group. We estimated the heritability and environmentality of scores on the diagrammatic puzzles of the Raven's Coloured and/or Standard Progressive Matrices (CPM/SPM) from two independent twin samples and correlated these estimates with group differences on the same items. In Study 1, 199 pairs of 5- to 7-year-old monozygotic (MZ) and dizygotic (DZ) twins reared together provided estimates of heritability and environmentality for 36 puzzles from the CPM. These estimates correlated with the differences between the twins and 94 Serbian Roma (both rs=0.32; Ns=36; psadult MZ and DZ twins reared apart provided estimates of heritability and environmentality for 58 puzzles from the SPM. These estimates correlated with the differences among 11 diverse samples including (i) the reared-apart twins, (ii) another sample of Serbian Roma, and (iii) East Asian, White, South Asian, Coloured and Black high school and university students in South Africa. In 55 comparisons, group differences were more pronounced on the more heritable and on the more environmental items (mean rs=0.40 and 0.47, respectively; Ns=58; ps<0.05). After controlling for measurement reliability and variance in item pass rates, the heritabilities still correlated with the group differences, although the environmentalities did not. Puzzles found relatively difficult (or easy) by the twins were those found relatively difficult (or easy) by the others (mean r=0.87). These results suggest that population group differences are part of the normal variation expected within a universal human cognition.

  10. Test de Raven : Comparación preliminar de resultados actuales con las estandarizaciones de los años 1964 y 2000, La Plata

    OpenAIRE

    2013-01-01

    El presente trabajo tiene como primer objetivo la presentación de los resultados obtenidos de una muestra parcial para la construcción de normas validas y actualizadas del Test de Matrices Progresivas de Raven, para las características de la población de la ciudad de La Plata; y luego realizar la comparación con las normas obtenidas anteriormente observando la tendencia dada. Se seleccionó una muestra de 420 sujetos de ambos sexos, con edades comprendidas entre los 13 y 18 años, alumnos de di...

  11. 原型解读艾德加·爱伦·坡诗作《乌鸦》%Archetypal Criticism on The Raven by Edgar Allan Poe

    Institute of Scientific and Technical Information of China (English)

    杨南翎; 曾融

    2009-01-01

    艾德加·爱伦·坡(Edgar Allan Poe)是19世纪美国文坛上著名的评论家、诗人、小说家及哲学家,(The Raven)是他的经典诗歌代表作.本文试图从原型批评的角度,简析诗作中的主要意象及影响爱伦·坡诗歌创作主题的因素,赏析该作品.

  12. Sensitivity and specificity of monoclonal and polyclonal immunohistochemical staining for West Nile virus in various organs from American crows (Corvus brachyrhynchos

    Directory of Open Access Journals (Sweden)

    Wu Ping

    2007-05-01

    Full Text Available Abstract Background Based on results of earlier studies, brain, heart and kidney are most commonly used for West Nile virus (WNV detection in avian species. Both monoclonal and polyclonal antibodies have been used for the immunohistochemical diagnosis of WNV in these species. Thus far, no studies have been performed to compare the sensitivity and specificity of monoclonal and polyclonal antibodies in detecting WNV in American crows (Corvus brachyrhynchos. Our objectives were to determine 1 the comparative sensitivities of monoclonal and polyclonal antibodies for immunohistochemical (IHC diagnosis of WNV infection in free-ranging American crows, 2 which organ(s is/are most suitable for IHC-based diagnosis of WNV, and 3 how real-time RT-PCR on RNA extracted from formalin-fixed paraffin-embedded tissues compared to IHC for the diagnosis of WNV infection. Methods Various combinations, depending on tissue availability, of sections of heart, kidney, brain, liver, lung, spleen, and small intestine from 85 free-ranging American crows were stained using a rabbit-polyclonal anti-WNV antibody as well as a monoclonal antibody directed against an epitope on Domain III of the E protein of WNV. The staining intensity and the extent of staining were determined for each organ using both antibodies. Real-time RT-PCR on formalin-fixed paraffin-embedded tissues from all 85 crows was performed. Results Forty-three crows were IHC-positive in at least one of the examined organs with the polyclonal antibody, and of these, only 31 were positive when IHC was performed with the monoclonal antibody. Real-time RT-PCR amplified WNV-specific sequences from tissue extracts of the same 43 crows that were IHC-positive using the polyclonal antibody. All other 42 crows tested negative for WNV with real-time PCR and IHC staining. Both antibodies had a test specificity of 100% when compared to PCR results. The test sensitivity of monoclonal antibody-based IHC staining was only 72

  13. Seed dispersal by a captive corvid: the role of the 'Alalā (Corvus hawaiiensis) in shaping Hawai'i's plant communities.

    Science.gov (United States)

    Culliney, Susan; Pejchar, Liba; Switzer, Richard; Ruiz-Gutierrez, Viviana

    2012-09-01

    Species loss can lead to cascading effects on communities, including the disruption of ecological processes such as seed dispersal. The endangered 'Alalā (Corvus hawaiiensis), the largest remaining species of native Hawaiian forest bird, was once common in mesic and dry forests on the Big Island of Hawai'i, but today it exists solely in captivity. Prior to its extinction in the wild, the 'Alalā may have helped to establish and maintain native Hawaiian forest communities by dispersing seeds of a wide variety of native plants. In the absence of 'Alalā, the structure and composition of Hawai'i's forests may be changing, and some large-fruited plants may be dispersal limited, persisting primarily as ecological anachronisms. We fed captive 'Alalā a variety of native fruits, documented behaviors relating to seed dispersal, and measured the germination success of seeds that passed through the gut of 'Alalā relative to the germination success of seeds in control groups. 'Alalā ate and carried 14 native fruits and provided germination benefits to several species by ingesting their seeds. Our results suggest that some plants rely heavily on 'Alalā for these services. In captivity, juvenile birds displayed seed dispersal behaviors more often than adult birds for most fruiting plants in our study. We introduced captive 'Alalā to two large-fruited, dry-forest plants, not previously recorded as 'Alalā food resources, but which may once have been part of their natural diet. The seed dispersal behavior that 'Alalā displayed toward these species supports the inclusion of dry and mesic forests in 'Alalā habitat restoration plans and adds weight to the idea that plant dispersal limitation may contribute to the rarity of these plants. Our study provides evidence that 'Alalā have the capacity to play a vital role in maintaining the diversity of fruiting plants in native Hawaiian forests through seed dispersal and enhanced seed germination, thus adding greater urgency to

  14. Bistand til risikovurdering (evt. ændringer af konklusioner af tidligere risikovurdering) . Zea mays (MON863; MON863x810). Opdateret rammenotat samt supplerende oplysninger til sagen. Modtaget 28-10-2004, deadline: snarest muligt, svar 01-11-2004

    DEFF Research Database (Denmark)

    Strandberg, Morten Tune; Damgaard, Christian; Kjellsson, Gøsta

    2004-01-01

    "Vedr. C/DE/02/09: Om Monsantos svar på Pusztai’s kritik giver anledning til ændring af DMU’s kommentarer til GM-majs MON863. Uanset om effekterne er tilfældige elller ej, er størrelsen af de mulige effekter på rotternes sundhed uden betydning i relation til den økologiske risikovurdering. Dermed...

  15. Bistand til risikovurdering (evt. ændringer af konklusioner af tidligere risikovurdering) . Zea mays (MON863; MON863x810). Opdateret rammenotat samt supplerende oplysninger til sagen. Modtaget 28-10-2004, deadline: snarest muligt, svar 01-11-2004

    DEFF Research Database (Denmark)

    Strandberg, Morten Tune; Damgaard, Christian; Kjellsson, Gøsta

    2004-01-01

    "Vedr. C/DE/02/09: Om Monsantos svar på Pusztai’s kritik giver anledning til ændring af DMU’s kommentarer til GM-majs MON863. Uanset om effekterne er tilfældige elller ej, er størrelsen af de mulige effekter på rotternes sundhed uden betydning i relation til den økologiske risikovurdering. Dermed...

  16. Recurrence rate and magma effusion rate for the latest volcanism on Arsia Mons, Mars

    Science.gov (United States)

    Richardson, Jacob A.; Wilson, James A.; Connor, Charles B.; Bleacher, Jacob E.; Kiyosugi, Koji

    2017-01-01

    Magmatism and volcanism have evolved the Martian lithosphere, surface, and climate throughout the history of Mars. Constraining the rates of magma generation and timing of volcanism on the surface clarifies the ways in which magma and volcanic activity have shaped these Martian systems. The ages of lava flows on other planets are often estimated using impact crater counts, assuming that the number and size-distribution of impact craters per unit area reflect the time the lava flow has been on the surface and exposed to potential impacts. Here we show that impact crater age model uncertainty is reduced by adding stratigraphic information observed at locations where neighboring lavas abut each other, and demonstrate the significance of this reduction in age uncertainty for understanding the history of a volcanic field comprising 29 vents in the 110-km-diameter caldera of Arsia Mons, Mars. Each vent within this caldera produced lava flows several to tens of kilometers in length; these vents are likely among the youngest on Mars, since no impact craters in their lava flows are larger than 1 km in diameter. First, we modeled the age of each vent with impact crater counts performed on their corresponding lava flows and found very large age uncertainties for the ages of individual vents, often spanning the estimated age for the entire volcanic field. The age model derived from impact crater counts alone is broad and unimodal, with estimated peak activity in the field around 130 Ma. Next we applied our volcano event age model (VEAM), which uses a directed graph of stratigraphic relationships and random sampling of the impact crater age determinations to create alternative age models. Monte Carlo simulation was used to create 10,000 possible vent age sets. The recurrence rate of volcanism is calculated for each possible age set, and these rates are combined to calculate the median recurrence rate of all simulations. Applying this approach to the 29 volcanic vents, volcanism

  17. Investigation of Anomalous Terrains on the West Flank of Olympus Mons using CRISM Data

    Science.gov (United States)

    Seelos, K. D.; Bridges, N. T.; Andrews-Hanna, J. C.; Seelos, F. P.; Murchie, S. L.

    2012-12-01

    The west flank of the Olympus Mons volcano hosts an anomalous linear chain of semicircular terrains. We report here analyses of these features using data from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) and other instruments. The terrains appear bright in both daytime and nighttime data from the Thermal Emission Imaging Experiment (THEMIS) and have moderate thermal inertia, contrasting with the regional dust mantle. They have no observable topographic relief, and morphologically appear inconsistent with volcanic or sedimentary deposits. Several forms of aeolian activity are evident, including yardangs, dunes, and scour-like features. However, the yardangs and scours appear to predate the terrains, and superposed dunes, while ubiquitous, do not fully account for the spectral and morphologic properties. Targeted hyperspectral visible and near infrared data from CRISM (20-40 m/pixel, ~0.4 to 4 μm) of the terrains show distinct circumferential color zonation and internal banding. Differences in spectral slope and depth of the 3 μm water absorption are apparent within these color units. Relatively low albedo materials that comprise small dune fields are superposed on variably higher albedo areas. Both of these materials exhibit negative infrared spectral slopes, but it is most pronounced in the areas with highest albedo. Around the perimeter of the terrains are two albedo zones that appear transitional with the surrounding high albedo dust cover, progressively darkening inward. Along with the overall decrease in albedo, however, is an apparent increase in the depth of the 3 μm hydration band. Spectral features indicative of specific hydrated minerals (e.g, sulfates, phyllosilicates) have not been observed, but an enhanced 3 μm absorption could indicate that these anomalous terrains were influenced by ephemeral water at some point in the near past. Recent aqueous activity on the largest volcano on Mars may represent a unique opportunity for

  18. The atmospheric temperatures over Olympus Mons on Mars: An atmospheric hot ring

    Science.gov (United States)

    Wolkenberg, P.; Formisano, V.; Rinaldi, G.; Geminale, A.

    2010-05-01

    We study the thermal fields over Olympus Mons separating seasons (northern spring and summer against southern spring and summer) and local time observations (day side versus night side). Temperature vertical profiles retrieved from Planetary Fourier Spectrometer on board Mars Express (PFS-MEX) data have been used. In many orbits (running north to south along a meridian) passing over the top of the volcano there is evidence of a hot air on top of the volcano, of two enhancement of the air temperature both north and south of it and in between a collar of air that is colder than nearby at low altitudes, and warmer than nearby at high altitudes. Mapping together many orbits passing over or near the volcano we find that the hot air has the tendency to form an hot ring around it. This hot structure occurs mostly between LT = 10.00 and 15.00 and during the northern summer. Distance of the hot structure from the top of the volcano is about 600 km (10° of latitude). The hot atmospheric region is 300-420 km (5-7°) wide. Hot ring temperature contrasts of about 40 K occur at 2 km above the surface and decrease to 20 K at 5 km and to 10 K at 10 km. The atmospheric circulation over an area of 40° × 40° (latitudes and longitudes) is affected by the topography and the presence of Olympus Mons (-133°W, 18°N). We discuss also the thermal stability of the atmosphere over the selected area using the potential temperatures. The temperature field over the top of the volcano shows unstable atmosphere within 10 km from the surface. Finally, we interpret the hot temperatures around volcano as an adiabatic compression of down-welling branch coming from over the top of volcano. Different air temperature profiles are observed in the same seasons during the night, or in different seasons. In northern spring-summer during the night the isothermal contours do not show the presence of the volcano until we reach close to the surface very much, where a thermal inversion is observed. The

  19. La voix off au féminin : Hiroshima mon amour et Aurélia Steiner

    Directory of Open Access Journals (Sweden)

    Jennifer Cazenave

    2011-07-01

    Full Text Available Une étude comparée du grand film moderne d’Alain Resnais, Hiroshima mon amour (1959, et du dyptique de Marguerite Duras, Aurélia Steiner (1979, laisse entrevoir une filiation entre deux films que vingt ans séparent et où s’entrecroisent un certain nombre de fils conducteurs : le lieu et la parole ; l’histoire et la mémoire ; la voix-off au féminin et l’irreprésentable. Il s’agira donc de penser ces deux œuvres cinématographiques à partir du rapport entre le parler féminin et la représentation du passé, soit la tonte des femmes au moment de la libération dans Hiroshima mon amour, soit l’extermination des Juifs d’Europe dans Aurélia Steiner.

  20. Elektroninio parašo panaudojimo verslo įmonėse modelio sukūrimas

    OpenAIRE

    Daugėlienė, Giedrė

    2012-01-01

    Magistro baigiamajame darbe „Elektroninio parašo panaudojimo verslo įmonėse modelio sukūrimas“ išanalizuota el. parašo naudojimo problematika, el. parašo bei el. dokumentų klasifikacinės sistemos bei parengtas el. parašo taikymo versle modelis, kuris patikrintas empiriniu tyrimu. Pirmoje darbo dalyje išanalizuota el. dokumentų raida ir jų klasifikacinės sistemos. Antrajame skyriuje atlikta el. parašo taikymo verslo įmonėse sisteminė analizė: apibrėžiama el. parašo sąvoka, rūšys, el. parašo p...

  1. The first four-color photometric investigation of the W UMa type contact binary V868 Mon

    CERN Document Server

    Xiao, Zhou; Jiajia, He; Jia, Zhang; Linqiao, Jiang

    2016-01-01

    The first four-color light curves of V868 Mon in the $B$ $V$ $R_c$ and $I_c$ bands are presented and analyzed by using the Wilson-Devinney method of the 2013 version. It is discovered that V868 Mon is an A-subtype contact binary (f=$58.9\\,\\%$) with a large temperature difference of 916$K$ between the two components. Using the eight new times of light minimum determined by the authors together with those collected from literatures, the authors found that the general trend of the observed-calculate ($O$-$C$) curve shows a upward parabolic variation that corresponds to a long-term increase in the orbital period at a rate of $dP/dt=9.38\\times{10^{-7}}day\\cdot year^{-1}$. The continuous increase may be caused by a mass transfer from the less massive component to the more massive one.

  2. Location and extent of recently active lava flows on the eastern flank of Idunn Mons on Venus

    Science.gov (United States)

    D'Incecco, Piero; Mueller, Nils; Helbert, Joern; D'Amore, Mario

    2016-10-01

    The eastern flank of Idunn Mons, Imdr Regio's single large volcano, was identified in VIRTIS data as one of the regions with relatively high values of thermal emissivity at 1 μm wavelength. Our study intends to identify location and extent of the sources of such anomalies, thus the lava flows responsible for the relatively high emissivity observed by VIRTIS over the eastern flank of Idunn Mons. We perform a simulation iterating the geologic mapping made over Magellan radar images of the same area with modeling of the blurring caused by the scattering of the 1 μm radiation in the atmosphere. At every iteration, we map the lava flow units in the surroundings of Idunn Mons and we assign each unit an assumed value of emissivity. We observed a good match between the mapped flows and the clusters resulting from the consistency of the mapped lava flows through the ISO clustering analysis. We tested eight different configurations, calculating the total RMS error compared to VIRTIS observations. The best-fit configuration is that where we assigned high values of emissivity to the flank lava flows. Results also show a correlation between the ISO clustering analysis and the best-fit configuration. We reconstructed the post-eruption stratigraphy of the eastern flank of Idunn Mons, displaying the three flank lava flows units likely responsible for the relatively high 1 μm emissivity anomalies observed by VIRTIS. The average microwave emissivity provides a further evidence of the basaltic composition of the mapped lava flows.

  3. Increased upper critical field for nanocrystalline MoN thin films deposited on AlN buffered substrates at ambient temperature

    Science.gov (United States)

    Baskaran, R.; Thanikai Arasu, A. V.; Amaladass, E. P.; Vaidhyanathan, L. S.; Baisnab, D. K.

    2016-05-01

    Molybdenum nitride (MoN) thin films have been deposited using reactive DC magnetron sputtering on aluminum nitride buffered oxidized silicon substrates at ambient temperature. GIXRD of aluminum nitride (AlN) deposited under similar conditions has revealed the formation of wurtzite phase AlN. GIXRD characterization of molybdenum thin films deposited on AlN buffered oxidized silicon substrates has indicated the formation of nanocrystalline MoN thin films. The electrical resistivity measurements indicate MoN thin films have a superconducting transition temperature of ~8 K. The minimum transition width of the MoN thin film is 0.05 K at 0 T. The inferred upper critical field B c2(0) for these nanocrystalline MoN thin films obtained by fitting the temperature dependence of critical field with Werthamer, Helfand and Hohenberg theory lies in the range of 17-18 T which is the highest reported in literature for MoN thin films.

  4. Chemical abundance analysis of symbiotic giants - II. AE Ara, BX Mon, KX TrA, and CL Sco

    Science.gov (United States)

    Gałan, Cezary; Mikołajewska, Joanna; Hinkle, Kenneth H.

    2015-02-01

    Knowledge of the elemental abundances of symbiotic giants is essential to address the role of chemical composition in the evolution of symbiotic binaries, to map their parent population, and to trace their mass transfer history. However, there are few symbiotic giants for which the photospheric abundances are fairly well determined. This is the second in a series of papers on chemical composition of symbiotic giants determined from high-resolution (R ˜ 50 000) near-IR spectra. Results are presented for the late-type giant star in the AE Ara, BX Mon, KX TrA, and CL Sco systems. Spectrum synthesis employing standard local thermal equilibrium (LTE) analysis and stellar atmosphere models were used to obtain photospheric abundances of CNO and elements around the iron peak (Sc, Ti, Fe, and Ni). Our analysis resulted in sub-solar metallicities in BX Mon, KX TrA, and CL Sco by [Fe/H] ˜ -0.3 or -0.5 depending on the value of microturbulence. AE Ara shows metallicity closer to solar by ˜ 0.2 dex. The enrichment in 14N isotope found in all these objects indicates that the giants have experienced the first dredge-up. In the case of BX Mon first dredge-up is also confirmed by the low 12C/13C isotopic ratio of ˜ 8.

  5. Kajian Transformasi Visual Desain Karakter Eevee pada Game Pokémon Series Generasi I-V

    Directory of Open Access Journals (Sweden)

    Dewi Isma Aryani

    2013-12-01

    Full Text Available Pokémon game series is a representation of the media culture that offers a world of simulation by creating signs through storyline, gameplay, environment, as well as game characters, so that it becomes a part of digital culture. The design of Pokémon character, in this case is Eevee, is able to generate its fans curiosity and addiction resulted from the application of Manga-matrix method, color theory and morphological-forced-connections technique through the visual transformation of character design itself. This study is a qualitative research that conducted through the application of Manga-matrix principle including internal and external factors on the characters, similarity analysis or the relation among the theories connected to visual element and the interpretation of character meaning, and the combination of character design theories as the reflection of the Satoshi Tajiri as well as Japanese society’s ideology or thinking pattern in cultural implementation. The analysis shows that Eevee’s changing form still contains similarity with its existence of additional elements creates variety of forms in Eevee’s character visualization. Those Eevee’s form variety becomes the essence of the creation of the character as the media that introduces the visual transformation of character design in a game, in this matter is the Pokémon game series.

  6. Effects of intra-abdominal pressure on liver function assessed with the LiMON in critically ill patients.

    Science.gov (United States)

    Inal, Mehmet Turan; Memis, Dilek; Sezer, Y Atakan; Atalay, Meltem; Karakoc, Abdullah; Sut, Necdet

    2011-06-01

    Intra-abdominal pressure (IAP) and intra-abdominal hypertension (IAH) are associated with significant morbidity and mortality in critically ill patients. Our aim was to assess the effects of IAH on liver function using the noninvasive liver function monitoring system LiMON and to assess the prognostic value of IAP in critically ill patients. We conducted a retrospective analysis of critically ill patients who were treated in the intensive care unit (ICU). The IAP and indocyanine green plasma disappearance rate (ICG-PDR) measurements were made within 24 hours after admission to the ICU and repeated 12 hours later. Intra-abdominal pressure was measured via a Foley bladder catheter, and ICG elimination tests were conducted concurrently using the LiMON. We included 30 critically ill patients (17 women and 13 men aged 28-89 yr) in our analysis. Statistical analysis showed that the baseline IAP values were significantly higher among nonsurvivors than survivors (19.38 [standard deviation; SD 2.08] v. 13.07 [SD 0.99]). The twelfth-hour IAP values were higher than baseline measurements among nonsurvivors (21.50 [SD 1.96]) and lower than baseline measurements among survivors (11.71 [SD 1.54]); the difference between groups was significant (p LiMON is a good predictor of the effects of IAP on liver function and, thus, can be recommended for the evaluation of critically ill patients.

  7. Tribological Properties of Mo-N Hard Coatings on Ti6Al4V by Double Glow Discharge Technique

    Institute of Scientific and Technical Information of China (English)

    Xiuyan LI; Bin TANG; Junde PAN; Daoxin LIU; Zhong XU

    2003-01-01

    Mo-N hard coatings on Ti6Al4V were formed using double glow discharge technique. The fundamental coating properties,such as the phase, hardness and elastic modulus were investigated. The tribological performances of the coatings in dry wear condition were studied by means of ball-on-disc wear machine. The experimental results showed that the thickness of the Mo-N hard coating was about 10 μm. The coating was single fcc γ-Mo2N phase with (200) preferred orientation. The hardness and the elastic modulus of the coating was 13.80 GPa and 261.65 GPa respectively. The surface treatment enhanced the hardness and elastic modulus of the surface of Ti6Al4V base greatly. With GCr15 slider ball, the friction coefficient of the Mo-N hard coatingwas in the range of 0.56~0.65 at the steady state. Though the coating did not show friction reducing effect, it improved the wear resistance of Ti6Al4V greatly.

  8. From forced collapse to H ii region expansion in Mon R2: Envelope density structure and age determination with Herschel

    CERN Document Server

    Didelon, P; Tremblin, P; Hill, T; Hony, S; Hennemann, M; Hennebelle, P; Anderson, L D; Galliano, F; Schneider, N; Rayner, T; Rygl, K; Louvet, F; Zavagno, A; Konyves, V; Sauvage, M; Andre, Ph; Bontemps, S; Peretto, N; Griffin, M; Gonzalez, M; Lebouteiller, V; Arzoumanian, D; Benedettini, M; Di Francesco, J; Menshchikov, A; Minier, V; Luong, Q Nguyen; Bernard, J -P; Palmeirim, P; Pezzuto, S; Rivera-Ingraham, A; Russeil, D; Ward-Thompson, D; White, G J

    2015-01-01

    The surroundings of HII regions can have a profound influence on their development, morphology, and evolution. This paper explores the effect of the environment on H II regions in the MonR2 molecular cloud. We aim to investigate the density structure of envelopes surrounding HII regions and to determine their collapse and ionisation expansion ages. The Mon R2 molecular cloud is an ideal target since it hosts an H II region association. Column density and temperature images derived from Herschel data were used together to model the structure of HII bubbles and their surrounding envelopes. The resulting observational constraints were used to follow the development of the Mon R2 ionised regions with analytical calculations and numerical simulations. The four hot bubbles associated with H II regions are surrounded by dense, cold, and neutral gas envelopes. The radial density profiles are reminiscent of those of low-mass protostellar envelopes. The inner parts of envelopes of all four HII regions could be free-fal...

  9. Study of Eclipsing Binary and Multiple Systems in OB Associations: I. Ori OB1a - IM Mon

    CERN Document Server

    Bakis, H; Bilir, S; Mikulasek, Z; Zejda, M; Yaz, E; Demircan, O; Bulut, I

    2011-01-01

    All available photometric and spectroscopic observations were collected and used as the basis of a detailed analysis of the close binary IM Mon. The orbital period of the binary was refined to 1.19024249(0.00000014) days. The Roche equipotentials, fractional luminosities (in (B, V) and H_p bands) and fractional radii for the component stars in addition to mass ratio q, inclination i of the orbit and the effective temperature T_eff of the secondary cooler less massive component were obtained by the analysis of light curves. IM Mon is classified to be a detached binary system in contrast to the contact configuration estimations in the literature. The absolute parameters of IM Mon were derived by the simultaneous solutions of light and radial velocity curves as M_1,2=5.50(0.24)M_o and 3.32(0.16)M_o, R1,2=3.15(0.04)R_o and 2.36(0.03)R_o, T_eff1,2=17500(350) K and 14500(550) K implying spectral types of B4 and B6.5 ZAMS stars for the primary and secondary components respectively. The modelling of the high resoluti...

  10. A quantitative study of O stars in NGC2244 and the Mon OB2 association

    CERN Document Server

    Martins, F; Rauw, G; Hillier, D J

    2011-01-01

    Our goal is to determine the stellar and wind properties of seven O stars in the cluster NGC2244 and three O stars in the OB association MonOB2. These properties give us insight into the mass loss rates of O stars, allow us to check the validity of rotational mixing in massive stars, and to better understand the effects of the ionizing flux and wind mechanical energy release on the surrounding interstellar medium and its influence on triggered star formation. We collect optical and UV spectra of the target stars which are analyzed by means of atmosphere models computed with the code CMFGEN. The spectra of binary stars are disentangled and the components are studied separately. All stars have an evolutionary age less than 5 million years, with the most massive stars being among the youngest. Nitrogen surface abundances show no clear relation with projected rotational velocities. Binaries and single stars show the same range of enrichment. This is attributed to the youth and/or wide separation of the binary sys...

  11. Field Evaluation of the Asian Corn Borer Control in Hybrid of Transgenic Maize Event MON 810

    Institute of Scientific and Technical Information of China (English)

    HE Kang-lai; WANG Zhen-ying; WEN Li-ping; BAI Shu-xiong; ZHOU Da-rong; ZHU Qing-hua

    2003-01-01

    In this study,a transgenic Bt maize hybrid(event MON 810 from Monsanto Company)expressing Cry1Ab protein derived from Bacillus thuringiensis(Bt)and its negative isoline hybrid were evaluatrial. Maize plants were artificially infested with neonate larvae of Asian corn borer at the mid-whorl(firstgeneration),pre-tassel(first-and/or second-generation),and silk(second-generation)growth stages.The transgenic Bt maize hybrid sustained significantly less leaf feeding damage(rating 1.0±0.0)than its negative isoline control(rating 7.3±0.1).With the Bt maize,1.3-6.8%of plants were damaged by corn borer tunneling with<0.5 cm tunneling per stalk under different levels of infestation,compared with 100%of plants damaged with 9.3-25.0 cm tunneling per stalk for the negative isoline control. On average,transgenic Bt maize hybrids had only 0.01-0.05 tunnels per stalk and no stems were broken.In contrast,the negative isoline control had 3.11-8.36 tunnels per stalk and 31.2-73.9% of stems broken.Yields were significantly higher in trahsgenic Bt maize than in the control. These results demonstrate that transgenic Bt maize can significantly minimize yield losses caused by the Asian corn borer through resistance to the first-and second-generation larvae.

  12. mHealthMon: toward energy-efficient and distributed mobile health monitoring using parallel offloading.

    Science.gov (United States)

    Ahnn, Jong Hoon; Potkonjak, Miodrag

    2013-10-01

    Although mobile health monitoring where mobile sensors continuously gather, process, and update sensor readings (e.g. vital signals) from patient's sensors is emerging, little effort has been investigated in an energy-efficient management of sensor information gathering and processing. Mobile health monitoring with the focus of energy consumption may instead be holistically analyzed and systematically designed as a global solution to optimization subproblems. This paper presents an attempt to decompose the very complex mobile health monitoring system whose layer in the system corresponds to decomposed subproblems, and interfaces between them are quantified as functions of the optimization variables in order to orchestrate the subproblems. We propose a distributed and energy-saving mobile health platform, called mHealthMon where mobile users publish/access sensor data via a cloud computing-based distributed P2P overlay network. The key objective is to satisfy the mobile health monitoring application's quality of service requirements by modeling each subsystem: mobile clients with medical sensors, wireless network medium, and distributed cloud services. By simulations based on experimental data, we present the proposed system can achieve up to 10.1 times more energy-efficient and 20.2 times faster compared to a standalone mobile health monitoring application, in various mobile health monitoring scenarios applying a realistic mobility model.

  13. Incubation temperature, morphology and performance in loggerhead (Caretta caretta turtle hatchlings from Mon Repos, Queensland, Australia

    Directory of Open Access Journals (Sweden)

    Elizabeth L. Sim

    2015-07-01

    Full Text Available Marine turtles are vulnerable to climate change because their life history and reproduction are tied to environmental temperatures. The egg incubation stage is arguably the most vulnerable stage, because marine turtle eggs require a narrow range of temperatures for successful incubation. Additionally, incubation temperature affects sex, emergence success, morphology and locomotor performance of hatchlings. Hatchlings often experience high rates of predation in the first few hours of their life, and increased size or locomotor ability may improve their chances of survival. Between 2010 and 2013 we monitored the temperature of loggerhead (Caretta caretta; Linnaeus 1758 turtle nests at Mon Repos Rookery, and used these data to calculate a mean three day maximum temperature (T3dm for each nest. We calculated the hatching and emergence success for each nest, then measured the mass, size and locomotor performance of hatchlings that emerged from those nests. Nests with a T3dm greater than 34°C experienced a lower emergence success and produced smaller hatchlings than nests with a T3dm lower than 34°C. Hatchlings from nests with a T3dm below 34°C performed better in crawling and swimming trials than hatchlings from nests with a T3dm above 34°C. Thus even non-lethal increases in global temperatures have the potential to detrimentally affect fitness and survival of marine turtle hatchlings.

  14. Conciencia hispana y tradición monástica en la Vita Fructuosi

    Directory of Open Access Journals (Sweden)

    Rodríguez de la Peña, Alejandro

    2007-12-01

    Full Text Available The author of Vita Fructuosi, probably a monk follower of Saint Fructuosus of Braga in the area of Gallaecia, shows in this biography an evident sense of rooting in the monastic Tradition, specially in the Egyptianeastern one, and also he declares a strong Roman-Catholic and Hispanic conscience. As the highest expression of it, he presents Saint Fructuosus with the same merits of the Egyptian monks and, joined to Saint Isidorus of Seville, as a light for Spain, for the Western and for the whole Catholic Church: they both are two causes of glory for a Visigothic Spain which fells herself as Roman and Catholic.El autor de la Vita Fructuosi, al parecer un monje discípulo de San Fructuoso de Braga en el área de Gallaecia, muestra en esta biografía un claro sentido de arraigo en la Tradición monástica, especialmente egipcio-oriental, y manifiesta una fuerte conciencia romano-católica e hispana. Como máxima expresión de todo ello, presenta a San Fructuoso a la altura de los méritos de los monjes egipcios y, junto con San Isidoro de Sevilla, como una lumbrera de Hispania, del Occidente y de toda la Iglesia Católica: ambos son dos motivos de gloria de la Hispania visigótica que se siente romana y católica.

  15. MONS on the Danish Roemer satellite Measuring Oscillations in Nearby Stars

    CERN Document Server

    Christensen-Dalsgaard, J

    2001-01-01

    MONS is the scientific project on the Danish Roemer satellite mission, which is being developed as part of the Danish Small Satellite Programme. The principal goal is to study solar-like oscillations in around 20 bright stars, with a precision that in the best cases will be limited only by the intrinsic stellar `noise'. The baseline orbit, a so-called Molniya orbit, allows access to essentially the entire sky during the planned 2-year mission. The main instrument is a short-focus reflecting telescope with an aperture of 32 cm, making two-colour measurements. A focused Field Monitor will be used to detect and correct for possible faint variable stars of substantial amplitude near the main target. In addition the Field Monitor, and the Star Trackers on the platform, may be used to observe a broad range of variable phenomena. The project has concluded the Systems Definition Phase by a successful review, and launch is scheduled for the middle of 2005.

  16. Spatial and Alignment Analyses for a field of Small Volcanic Vents South of Pavonis Mons Mars

    Science.gov (United States)

    Bleacher, J. E.; Glaze, L. S.; Greeley, R.; Hauber, E.; Baloga, S. M.; Sakimoto, S. E. H.; Williams, D. A.; Glotch, T. D.

    2008-01-01

    The Tharsis province of Mars displays a variety of small volcanic vent (10s krn in diameter) morphologies. These features were identified in Mariner and Viking images [1-4], and Mars Orbiter Laser Altimeter (MOLA) data show them to be more abundant than originally observed [5,6]. Recent studies are classifying their diverse morphologies [7-9]. Building on this work, we are mapping the location of small volcanic vents (small-vents) in the Tharsis province using MOLA, Thermal Emission Imaging System, and High Resolution Stereo Camera data [10]. Here we report on a preliminary study of the spatial and alignment relationships between small-vents south of Pavonis Mons, as determined by nearest neighbor and two-point azimuth statistical analyses. Terrestrial monogenetic volcanic fields display four fundamental characteristics: 1) recurrence rates of eruptions,2 ) vent abundance, 3) vent distribution, and 4) tectonic relationships [11]. While understanding recurrence rates typically requires field measurements, insight into vent abundance, distribution, and tectonic relationships can be established by mapping of remotely sensed data, and subsequent application of spatial statistical studies [11,12], the goal of which is to link the distribution of vents to causal processes.

  17. Immunological and metabolomic impacts of administration of Cry1Ab protein and MON 810 maize in mouse.

    Directory of Open Access Journals (Sweden)

    Karine Adel-Patient

    Full Text Available We have investigated the immunological and metabolomic impacts of Cry1Ab administration to mice, either as a purified protein or as the Cry1Ab-expressing genetically modified (GM MON810 maize. Humoral and cellular specific immune responses induced in BALB/cJ mice after intra-gastric (i.g. or intra-peritoneal (i.p. administration of purified Cry1Ab were analyzed and compared with those induced by proteins of various immunogenic and allergic potencies. Possible unintended effects of the genetic modification on the pattern of expression of maize natural allergens were studied using IgE-immunoblot and sera from maize-allergic patients. Mice were experimentally sensitized (i.g. or i.p. route with protein extracts from GM or non-GM maize, and then anti-maize proteins and anti-Cry1Ab-induced immune responses were analyzed. In parallel, longitudinal metabolomic studies were performed on the urine of mice treated via the i.g. route. Weak immune responses were observed after i.g. administration of the different proteins. Using the i.p. route, a clear Th2 response was observed with the known allergenic proteins, whereas a mixed Th1/Th2 immune response was observed with immunogenic protein not known to be allergenic and with Cry1Ab. This then reflects protein immunogenicity in the BALB/c Th2-biased mouse strain rather than allergenicity. No difference in natural maize allergen profiles was evidenced between MON810 and its non-GM comparator. Immune responses against maize proteins were quantitatively equivalent in mice treated with MON810 vs the non-GM counterpart and no anti-Cry1Ab-specific immune response was detected in mice that received MON810. Metabolomic studies showed a slight "cultivar" effect, which represented less than 1% of the initial metabolic information. Our results confirm the immunogenicity of purified Cry1Ab without evidence of allergenic potential. Immunological and metabolomic studies revealed slight differences in mouse metabolic

  18. "Faces, Voices & Dreams: A Celebration of the Centennial of the Sheldon Jackson Museum, 1888-1988," Edited by Peter L. Corey. "The Raven's Tail," by Cheryl Samuel. Book Reviews.

    Science.gov (United States)

    Jonaitis, Aldona

    1987-01-01

    Reviews: a volume of 11 essays on the history of Sheldon Jackson Museum and its Eskimo, Aleut, Athabaskan, Tlingit, and Haida collections; and a book analyzing the geometric design, technique, and imagery of 15 "raven's tail robes," early Northwest Coast textiles predating the more familiar Chilkat blankets. (SV)

  19. Massive Gains in IQ Do Not Appear to Extend to the Elderly: A Note on Adult Australian Inpatient Performance on Raven's Standard Progressive Matrices (1938) and the Simpson Adult Vocabulary Scale.

    Science.gov (United States)

    Ivison, David

    1990-01-01

    Raven's Progressive Matrices and the Simpson Adult Vocabulary Scale were administered to 400 Australian hospitalized adults without psychiatric or neurological impairment in 4 age groups from 30 to 69 years. Compared to pre-1964 data, the subjects did not show gains in intelligence quotient as did younger age groups. (SLD)

  20. Ravens at Play

    Directory of Open Access Journals (Sweden)

    Deborah Bird Rose

    2011-09-01

    Full Text Available ‘We were driving through Death Valley, an American-Australian and two Aussies, taking the scenic route from Las Vegas to Santa Cruz.’ This multi-voiced account of multispecies encounters along a highway takes up the challenge of playful and humorous writing that is as well deeply serious and theoretically provocative. Our travels brought us into what Donna Haraway calls the contact zone: a region of recognition and response. The contact zone is a place of significant questions: ‘Who are you, and so who are we? Here we are, and so what are we to become?’ Events were everything in this ecology of play, in which the movements of all the actors involved the material field in its entirety. We were brought into dances of approach and withdrawal, dances emerging directly, to paraphrase Brian Massumi, from the dynamic relation between a myriad of charged particles.

  1. EFSA Panel on Genetically Modified Organisms (GMO); Scientific Opinion on an application (EFSAGMO-NL-2012-107) for the placing on the market of maize MON 810 pollen under Regulation (EC) No 1829/2003 from Monsanto

    DEFF Research Database (Denmark)

    Sørensen, Ilona Kryspin

    In this opinion, the EFSA GMO Panel addresses the safety of maize MON 810 pollen to complete the scope of an application (RX-MON 810) for the marketing of genetically modified maize MON 810 with the use of MON 810 pollen as or in food. Data on molecular characterisation of maize MON 810 did...... apply to the Cry1Ab protein expressed in MON 810 pollen. While the EFSA GMO Panel is not in a position to conclude on the safety of maize pollen in or as food in general, it concludes that the genetic modification in maize MON 810 does not constitute an additional health risk if maize MON 810 pollen...... not raise any safety concerns with respect to its pollen. The EFSA GMO Panel has previously assessed the safety of the newly expressed Cry1Ab protein in maize MON 810. The assessment and conclusions of the GMO Panel on the safety of this protein, including its potential toxicity and allergenicity, also...

  2. Scientific Opinion on an application (EFSA-GMO-NL-2012-107 for the placing on the market of maize MON 810 pollen under Regulation (EC No 1829/2003 from Monsanto

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2012-12-01

    Full Text Available In this opinion, the EFSA GMO Panel addresses the safety of maize MON 810 pollen to complete the scope of an application (RX-MON 810 for the marketing of genetically modified maize MON 810 with the use of MON 810 pollen as or in food. Data on molecular characterisation of maize MON 810 did not raise any safety concerns with respect to its pollen. The EFSA GMO Panel has previously assessed the safety of the newly expressed Cry1Ab protein in maize MON 810. The assessment and conclusions of the GMO Panel on the safety of this protein, including its potential toxicity and allergenicity, also apply to the Cry1Ab protein expressed in MON 810 pollen. While the EFSA GMO Panel is not in a position to conclude on the safety of maize pollen in or as food in general, it concludes that the genetic modification in maize MON 810 does not constitute an additional health risk if maize MON 810 pollen is to replace maize pollen from non-GM maize in or as food.

  3. The composition of grain and forage from glyphosate tolerant wheat MON 71800 is equivalent to that of conventional wheat (Triticum aestivum L.).

    Science.gov (United States)

    Obert, Janet C; Ridley, William P; Schneider, Ronald W; Riordan, Susan G; Nemeth, Margaret A; Trujillo, William A; Breeze, Matthew L; Sorbet, Roy; Astwood, James D

    2004-03-10

    Glyphosate tolerant wheat MON 71800, simply referred to as MON 71800, contains a 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) protein from Agrobacterium sp. strain CP4 (CP4 EPSPS) that has a reduced affinity for glyphosate as compared to the endogenous plant EPSPS enzyme. The purpose of this work was to evaluate the compositional equivalence of MON 71800 to its nontransgenic parent as well as to conventional wheat varieties. The compositional assessment evaluated the levels of proximates, amino acids, fatty acids, minerals, vitamins, secondary metabolites, and antinutrients in wheat forage and grain grown during two field seasons across a total of eight sites in the United States and Canada. These data demonstrated that with respect to these important nutritional components, the forage and grain from MON 71800 were equivalent to those of its nontransgenic parent and commercial wheat varieties. These data, together with the previously established safety of the CP4 EPSPS protein, support the conclusion that glyphosate tolerant wheat MON 71800 is as safe and nutritious as commercial wheat varieties.

  4. Tóxicos detectados en muertes relacionadas con fuegos e intoxicaciones por monóxido de carbono

    Directory of Open Access Journals (Sweden)

    J. Gómez

    2003-01-01

    Full Text Available Se presentan en este trabajo las conclusiones del estudio realizado sobre los resultados de los análisis efectuados en muestras de sangre de 882 personas que resultaron fallecidas o intoxicadas en fuegos o a consecuencia de la inhalación de monóxido de carbono y/o de otros gases de combustión. En ellas se investigó la presencia de monóxido de carbono, cianuro y otros tóxicos tales como el alcohol etílico y los psicofármacos. Se realizan dos subgrupos, el de muertes producidas por intoxicación por monóxido de carbono y el de las ocurridas en fuegos. Se puede observar que las concentraciones de carboxihemoglobina alcanzadas en uno y otro grupo difieren sensiblemente, siendo muy superiores las encontradas en el primer grupo, con frecuencias máximas entre 50% y 70% de carboxihemoglobina frente a las detectadas en el segundo grupo cuyas frecuencias máximas se hallan entre 1% y 15%. En las muertes ocurridas en fuegos se detecta además cianuro en concentraciones variables ( 0,2 - 12 µg / ml e independientes del nivel de carboxihemoglobina detectado en cada caso. Entre los otros tóxicos más frecuentes se detectan el alcohol etílico, las benzodiacepinas, el butano y los antidepresivos, entre otros. El alcohol etílico se detecta en diferentes concentraciones observándose una mayor concentración en los casos de fuegos, lo que indica que puede tener influencia en la ocurrencia de accidentes relacionados con ellos

  5. SeaMon-HC Buoy. A specific real-time-lightweight-moored platform as a tool for fast hydrocarbon detection

    Science.gov (United States)

    Barrera, C.; Rueda, M. J.; Moran, R.; Llerandi, C.; Llinas, O.

    2009-04-01

    The present paper-work describes the design, last development stages and the derived results from a specific buoy platform for fast hydrocarbon detection in seawater. Under the name of SeaMon-HC, (Patent No. P200302219/8) the buoy represents a very chief tool for coastal monitoring, mainly surrounding areas with a high oil-spill risk level, like harbours, off-shore fish farming, beaches and so on. Nowadays, the Macaronesian area has nine units working in real-time, under the frame of the Red ACOMAR Network. The main innovative aspect from this buoy is the detection system. It's based in polymer technology, working as a resistance, who increase its value when the pollutant on water surface is detected. The response time from the sensor is a direct function of the hydrocarbon volatility level. For hydrocarbons with high volatility levels (like petrol), the sensor needs less time (around 3 minutes) than others with less volatility such as oils. SeaMon-HC is an autonomous, modular, reusable and a very low-cost development integrated by four subsystems (SS): SS-Flotation (different materials and shapes available); SS-Sensors (hydrocarbon detector and additional sensors -up to 15-, to solve specific sensor configuration requirements); SS-Power Supply (equipped in its basic configuration with a couple of solar modules and two 12V batteries) and the SS-Communication (based on a RF or GSM/GPRS modem technology, with a selectable communication frequency). All SeaMon-HC units, as well the rest of the ODAS buoys who joint together the Red ACOMAR Network, works in real-time, sending the collected information to the control centre that manages the communications, providing data, in a useful form (as a web site), to diverse socio-economic important sectors which make an exhaustive use of the littoral in the Macaronesian region. The access to the information by the users is done through a specific GIS software application.

  6. MonChER: Monte-Carlo generator for CHarge Exchange Reactions. Version 1.1. Physics and Manual

    OpenAIRE

    Ryutin, R. A.; Sobol, A E.; Petrov, V. A.

    2011-01-01

    MonChER is a Monte Carlo event generator for simulation of single and double charge exchange reactions in proton-proton collisions at energies from 0.9 to 14 TeV. Such reactions, $pp\\to n+X$ and $pp\\to n+X+n$, are characterized by leading neutron production. They are dominated by $\\pi^+$ exchange and could provide us with more information about total and elastic $\\pi^+ p$ and $\\pi^+\\pi^+$ cross sections and parton distributions in pions in the still unexplored kinematical region.

  7. Light Water Reactor Sustainability Program Support and Modeling for the Boiling Water Reactor Station Black Out Case Study Using RELAP and RAVEN

    Energy Technology Data Exchange (ETDEWEB)

    Diego Mandelli; Curtis Smith; Thomas Riley; John Schroeder; Cristian Rabiti; Aldrea Alfonsi; Joe Nielsen; Dan Maljovec; Bie Wang; Valerio Pascucci

    2013-09-01

    The existing fleet of nuclear power plants is in the process of extending its lifetime and increasing the power generated. In order to evaluate the impact of these two factors on the safety of the plant, the Risk Informed Safety Margin Characterization (RISMC) project aims to provide insight to decision makers through a series of simulations of the plant dynamics for different initial conditions (e.g., probabilistic analysis and uncertainty quantification). This report focuses, in particular, on the impact of power uprate on the safety of a boiled water reactor system. The case study considered is a loss of off-site power followed by the loss of diesel generators, i.e., a station black out (SBO) event. Analysis is performed by using a thermo-hydraulic code, i.e. RELAP-5, and a stochastic analysis tool currently under development at INL, i.e. RAVEN. Starting from the event tree models contained in SAPHIRE, we built the input file for RELAP-5 that models in great detail system dynamics under SBO conditions. We also interfaced RAVEN with RELAP-5 so that it would be possible to run multiple RELAP-5 simulation runs by changing specific keywords of the input file. We both employed classical statistical tools, i.e. Monte-Carlo, and more advanced machine learning based algorithms to perform uncertainty quantification in order to quantify changes in system performance and limitations as a consequence of power uprate. We also employed advanced data analysis and visualization tools that helped us to correlate simulation outcome such as maximum core temperature with a set of input uncertain parameters. Results obtained gave a detailed overview of the issues associated to power uprate for a SBO accident scenario. We were able to quantify how timing of safety related events were impacted by a higher reactor core power. Such insights can provide useful material to the decision makers to perform risk-infomed safety margins management.

  8. Construction Mon1a Gene Knock-out HEK293T Stable Cell Line by TALEN and Phenotype Analysis%利用TALEN技术建立Mon1a基因敲除细胞系及其表型分析

    Institute of Scientific and Technical Information of China (English)

    朱伟萍; 李华顺

    2016-01-01

    为了研究囊泡运输蛋白Mon1a(Mon1 secretory trafficking family member A)在细胞中的作用,该文利用类转录激活因子效应物核酸酶(transcription activator-like effector nuclease,TALEN)打靶技术构建了针对Mon1a基因的特定TALEN质粒对,转染后筛选获得Mon1a基因敲除的HEK293T稳定细胞系.进一步从细胞增殖能力、迁移能力以及小鼠皮下成瘤能力等方面研究了Mon1a缺失对HEK293T细胞的影响.结果表明,Mon1a在细胞增殖、迁移和成瘤等过程中起到重要作用.

  9. Comportamiento del monóxido de carbono y el clima en la ciudad de Toluca, de 1995 a 2001

    Directory of Open Access Journals (Sweden)

    Julio César Hernández Romero

    2004-01-01

    Full Text Available Uno de los gases contaminantes con mayor distribución y concentración en Toluca y su área metropolitana es el monóxido de carbono que, al igual que el dióxido de azufre y el dióxido de carbono, es generado principalmente por la combustión automotriz y, en segundo lugar por el sector industrial. Sin embargo, debido a la activa dinámica de los vientos en la mayor parte del año, estos gases tienden a dispersarse en todo el valle; solamente durante el invierno la concentración y la distribución del monóxido de carbono se encuentran por encima de las normas establecidas en la legislación vigente. Por eso se considera la calidad del aire como satisfactoria, aunque por su combinación con las bajas temperaturas del periodo invernal y la baja humedad del aire, tiende a representar riesgos para la salud humana.

  10. Origins of Sinuous and Braided Channels on Ascraeus Mons, Mars - A Keck Geology Consortium Undergraduate Research Project

    Science.gov (United States)

    de Wet, A. P.; Bleacher, J. E.; Garry, W. B.

    2012-01-01

    Water has clearly played an important part in the geological evolution of Mars. There are many features on Mars that were almost certainly formed by fluvial processes -- for example, the channels Kasei Valles and Ares Vallis in the Chryse Planitia area of Mars are almost certainly fluvial features. On the other hand, there are many channel features that are much more difficult to interpret -- and have been variously attributed to volcanic and fluvial processes. Clearly unraveling the details of the role of water on Mars is extremely important, especially in the context of the search of extinct or extant life. In this project we built on our recent work in determining the origin of one channel on the southwest rift apron of Ascraeus Mons. This project, funded by the Keck Geology Consortium and involving 4 undergraduate geology majors took advantage of the recently available datasets to map and analyze similar features on Ascraeus Mons and some other areas of Mars. A clearer understanding of how these particular channel features formed might lead to the development of better criteria to distinguish how other Martian channel features formed. Ultimately this might provide us with a better understanding of the role of volcanic and fluvial processes in the geological evolution of Mars.

  11. Įmonės „Woxx Barbers“ marketingo galimybės socialiniuose tinkluose „Facebook“ ir „Instagram“

    OpenAIRE

    Kuzminskaitė, Simona

    2016-01-01

    Baigiamojo darbo tema: „Įmonės Woxx Barbers galimybės socialiniuose tinkluose „Facebook“ ir „Instagram“. Pateikti socialiniai tinklai yra vieni populiariausių Lietuvoje. „Facebook“ platforma naudojasi 930 tūkst. gyventojų, o „Instagram“ skaičiuoja 110 tūkst. vartotojų Lietuvoje, todėl įmonės vis labiau skverbiasi į šiuos socialinius tinklus. Tačiau netikslinga įmonių komunikacija socialiniuose tinkluose, dažnai sukelia nepasitenkinimą ir yra nuvertinami, kaip neefektyvi marketi...

  12. Pokémon Go: Ubiquitous Computing Delivering Better Health or Co-Incidental Health Benefits from Technology Use? A Participatory Observational Study.

    Science.gov (United States)

    Yee, Kwang Chien; Wong, Ming Chao; Turner, Paul

    2017-01-01

    Stimulating sustained behavioural change through information and technology has been an aim of much health informatics research. Traditional approaches use technology to mediate communications between health professionals and patients. More recent lifestyle technologies engage the patient directly with information and advice - but what of the phenomena that is Pokémon Go - does it point to another way of achieving health benefits through fun? This paper aims to explore some of the conceptual questions for health informatics stimulated by the phenomenal popularity of Pokémon Go. The paper is grounded analysis of data generated through a preliminary participatory observational study in Australia.

  13. Significance of the Oviposition Records of Three Western Ghats Endemics, the Malabar Raven, Papilio dravidarum Wood-Mason, Malabar Rose, Atrophaneura pandiyana Moore and Crimson Rose, Atrophaneura hector Linnaeus (Lepidoptera: Papilionidae

    Directory of Open Access Journals (Sweden)

    V.S. Revathy

    2015-01-01

    Full Text Available Observations were made on the biology and bionomics of the three Western Ghats Endemics, the Malabar Raven (Papilio dravidarum Wood-Mason, Malabar Rose (Atrophaneura pandiyana Moore and Crimson Rose (A. hector Linnaeus. The size of the caterpillar (length and breadth, mode of feeding, pupation and emergence were recorded. The biology took 36-40 days for completion in Malabar Raven, 35-37 days in A. pandiyana and A. hector. Butterflies found in different habitats tend to show marked differences in their general appearance and biology as evidenced by the "Ecological races" reported in several species of butterflies. Thorough understanding of the life history and their behavioural patterns of immature stages will help in recognizing geographical and ecological races.

  14. A strict test of stellar evolution models: The absolute dimensions of the massive benchmark eclipsing binary V578 Mon

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, E. V.; Stassun, Keivan G. [Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, VU Station B 1807, Nashville, TN 37235 (United States); Pavlovski, K. [Department of Physics, University of Zagreb, Bijenicka cesta 32, 10000 Zagreb (Croatia); Hensberge, H. [Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussels (Belgium); Chew, Y. Gómez Maqueo [Physics Department, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL (United Kingdom); Claret, A., E-mail: eugenio.v.garcia@gmail.com [Instituto de Astrofsica de Andaluca, CSIC, Apartado 3004, E-18080 Granada (Spain)

    2014-09-01

    We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P = 2.40848 days) in the star-forming region NGC 2244 of the Rosette Nebula. From the light curve analysis of 40 yr of photometry and the analysis of HERMES spectra, we find radii of 5.41 ± 0.04 R{sub ☉} and 4.29 ± 0.05 R{sub ☉}, and temperatures of 30,000 ± 500 K and 25,750 ± 435 K, respectively. We find that our disentangled component spectra for V578 Mon agree well with previous spectral disentangling from the literature. We also reconfirm the previous spectroscopic orbit of V578 Mon finding that masses of 14.54 ± 0.08 M{sub ☉} and 10.29 ± 0.06 M{sub ☉} are fully compatible with the new analysis. We compare the absolute dimensions to the rotating models of the Geneva and Utrecht groups and the models of the Granada group. We find that all three sets of models marginally reproduce the absolute dimensions of both stars with a common age within the uncertainty for gravity-effective temperature isochrones. However, there are some apparent age discrepancies for the corresponding mass-radius isochrones. Models with larger convective overshoot, >0.35, worked best. Combined with our previously determined apsidal motion of 0.07089{sub −0.00013}{sup +0.00021} deg cycle{sup –1}, we compute the internal structure constants (tidal Love number) for the Newtonian and general relativistic contribution to the apsidal motion as log k {sub 2} = –1.975 ± 0.017 and log k {sub 2} = –3.412 ± 0.018, respectively. We find the relativistic contribution to the apsidal motion to be small, <4%. We find that the prediction of log k {sub 2,theo} = –2.005 ± 0.025 of the Granada models fully agrees with our observed log k {sub 2}.

  15. 利用QuantStudioTM 3D数字PCR分析转基因玉米MON863含量%Quantification of Genetically Modified Maize (Zea mays) MON863 by QuantStudioTM 3D Digital PCR

    Institute of Scientific and Technical Information of China (English)

    胡佳莹; 姜羽; 杨立桃

    2016-01-01

    QuantStudioTM 3D数字PCR (QuantStudioTM 3D digital PCR,3D-dPCR)是一种基于超高密度亲疏水微孔芯片实现数字PCR分液原理的新型核酸绝对定量平台,在转基因生物定量领域具有极大的应用前景.本研究基于3D-dPCR平台,以转基因玉米(Zea mays)MON863混合样品为例,建立基于单重和双重数字PCR体系的转基因生物(genetically modified organisms,GMOs)含量分析方法.与传统qRT-PCR比较发现,在缺乏样品纯度、纯合度信息的情况下,数字PCR能够较好地排除这些因素的影响,测定准确的量值.研究结果表明,QuantStudioTM 3D数字PCR是一种适用于转基因生物含量分析的精确定量方法,还可反映转基因玉米种子的基因型.本研究基于3D-dPCR建立的转基因玉米MON863单重和双重定量方法为转基因检测提供了新的方法和参考.

  16. Variáveis ambientais e níveis de monóxido de carbono exalado e carboxihemoglobina em idosos praticantes de exercício

    Directory of Open Access Journals (Sweden)

    Marcos Adriano Salicio

    2016-04-01

    Full Text Available Resumo O objetivo deste artigo é analisar o monóxido de carbono exalado, a carboxihemoglobina e as variáveis cardiopulmonares em idosos praticantes de exercícios em ambientes externos e correlacionar com clima e poluição. Estudo ecológico temporal com 118 idosos ativos em Cuiabá. Foram obtidas informações sobre uso de medicamentos, tabagismo, antropometria, espirometria, peak-flow, saturação de oxigênio, frequência cardíaca, monóxido de carbono exalado, carboxihemoglobina, além de dados climáticos, queimadas e poluição. Temperatura ambiental, umidade relativa do ar e queimadas correlacionaram com monóxido de carbono exalado e carboxihemoglobina (p < 0,05. Frequência cardíaca correlacionou com alterações de temperatura ambiental, tempo de exposição solar e umidade relativa (p < 0,05. Idosos sofrem influências ambientais alterando níveis de monóxido de carbono, carboxihemoglobina e frequência cardíaca, sendo necessário monitoramento destes durante os exercícios, sugerindo-se o uso do monoxímetro para avaliação de exposição a poluentes.

  17. Statement complementing the scientific opinion on application EFSA-GMO-NL-2010-78 to cover the safety of soybean MON 87705 oil for commercial frying

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2013-12-01

    Full Text Available In this statement, the EFSA GMO Panel responds to a request from the European Commission (EC to assess the safety of soybean MON 87705 oil for commercial frying. The applicant provided exposure assessments based on total and partial substitutions of conventional soybean, rapeseed and sunflower oils with the soybean MON 87705 oil in foods (salad dressings, margarines and spreads, mayonnaise, crackers and salty snacks and soybean/rapeseed/sunflower oils processed foods. No distinction was made between commercial and domestic use, nor whether the oils were used in frying or not. The EFSA GMO Panel considers that this exposure scenario is the most pertinent in that it addresses not only the question raised by the EC about the possible use of soybean MON 87705 oil in frying, but also other possible food uses. Having assessed total replacement, the most conservative scenario arising from both domestic and commercial use of the oil, the EFSA GMO Panel concluded that the use of soybean MON 80775 oil does not impact on human health and nutrition. The Panel recommends a post-market monitoring plan for the marketed foods and feed.

  18. Avaliação funcional de monócitos de bovinos naturalmente infectados pelo vírus da leucose bovina

    Directory of Open Access Journals (Sweden)

    M.R Azedo

    2011-10-01

    Full Text Available Para a avaliação funcional de monócitos de bovinos infectados pelo vírus da leucose enzoótica bovina (LEB, foram coletadas amostras de sangue de 10 vacas com sorodiagnóstico negativo (SN, 10 com sorodiagnóstico positivo e que manifestavam linfocitose persistente (LP, e 10 com sorodiagnóstico positivo alinfocitóticas (AL. Os monócitos foram separados por gradiente de densidade e aderência em placa, submetidos aos testes de viabilidade por exclusão do azul de tripan, fagocitose de partículas de Zymosan, espraiamento em lamínula de vidro e quantificação da liberação de peróxido de hidrogênio (H2O2 e de óxido nítrico (ON. Monócitos de animais com LP apresentaram os menores índices de viabilidade (P<0,001, de fagocitose (P<0,001 e de espraiamento (P=0,006. Também apresentaram maior produção de H2O2 sem prévio estímulo (P=0,001 e após estímulo in vitro com 12-miristato 13-acetato de forbol (P=0,006 do que monócitos de animais SN e AL. O aumento da produção de H2O2 proporcionado pelo estímulo foi menor (P=0,015 nos monócitos de fêmeas que manifestaram LP. Não houve diferença na produção de ON pelos monócitos segundo os grupos. Os resultados indicam que o vírus da LEB, apesar de infectar linfócitos B, altera funcionalmente os monócitos circulantes em bovinos que manifestam LP.

  19. FerryMon: An Unattended Ferry-Based Observatory to Assess Human and Climatically- Induced Ecological Change in the Neuse River-Pamlico Sound System, North Carolina, USA

    Science.gov (United States)

    Guajardo, R.; Paerl, H. W.; Hall, N.; Whipple, A.; Luettich, R.

    2007-12-01

    In North Carolina's Neuse River Estuary (NRE)-Pamlico Sound (PS) System, nitrogen (N)-driven eutrophication, water quality and habitat decline have prompted the State and US EPA to mandate watershed-based N load reductions, including a total maximum daily allowable N load (TMDL). Chlorophyll a (chl-a), the indicator of algal biomass, is the measure for the efficacy of N reductions, with "acceptable" values being algal blooms are patchy in time and space, making exceedances of 40 μ g L-1 difficult to track. The North Carolina ferry-based water quality monitoring program, FerryMon (www.ferrymon.org) addresses this and other environmental monitoring needs in the NRE-PS. FerryMon uses NC DOT ferries to provide continuous, space-time intensive, accurate measurements of chl-a and other key water quality criteria, using sensors placed in a flow-through system and discrete sampling of nutrients, organics, diagnostic photopigment and molecular indicators of major algal groups in a near real-time manner. Complementing FerryMon are automated vertical profilers (AVPs), which produce chl-a and other water quality indicator depth profiles with very high time and vertical resolution. In-line spectral fluorometers (Algae Online Analyzers (AOAs)) will be installed starting in late 2007, providing rapid early warning detection and quantification of algal blooms. FerryMon permits spatial characterization of trends in water quality conditions over a range of relevant physical, chemical and biological time scales. This enhanced capability is timely, given a protracted period of increased tropical storm and hurricane activity that, in combination with anthropogenic nutrient enrichment, affects water quality in unpredictable, yet significant ways. FerryMon also serves as a data source for calibrating and verifying remotely sensed indicators of water quality (photopigments, turbidity), nutrient-productivity and hydrologic modeling. Data management and communication links allow FerryMon

  20. 2MASS wide field extinction maps: IV. The Orion, Mon R2, Rosette, and Canis Major star forming regions

    CERN Document Server

    Lombardi, Marco; lada, Charles

    2011-01-01

    We present a near-infrared extinction map of a large region (approximately 2200 deg^2) covering the Orion, the Monoceros R2, the Rosette, and the Canis Major molecular clouds. We used robust and optimal methods to map the dust column density in the near-infrared (NICER and NICEST) towards ~19 million stars of the Two Micron All Sky Survey (2MASS) point source catalog. Over the relevant regions of the field, we reached a 1-sigma error of 0.03 mag in the K-band extinction with a resolution of 3 arcmin. We measured the cloud distances by comparing the observed density of foreground stars with the prediction of galactic models, thus obtaining d_{Orion A} = (371 +/- 10) pc, d_{Orion B} = (398 +/- 12) pc, $d_{Mon R2} = (905 +/- 37) pc, $d_{Rosette} = (1330 +/- 48) pc, and $d_{CMa} = (1150 +/- 64) pc, values that compare very well with independent estimates.

  1. Title: Benchmark of the radiation field simulations of the LHC injection lines with the RadMon detectors

    CERN Document Server

    Boccone, V; Kramer, D; Roeed, K

    2011-01-01

    In this paper we present the high energy hadron (HEH) fluence simulations in the LHC injection regions (TI2 and TI8) performed by the FLUKA Monte-Carlo code and we compare the expected nominal single event upset (SEU) counts in the RadMon detectors with the measured values. During the LHC injection setup the 450 GeV/c proton beam from the Super Proton Synchrotron (SPS) is progressively adjusted and aligned through the two injection lines until the LHC septum magnets. During the first phase of alignment the beam is dumped onto the injection line dumps TEDs and the debris of the interactions streams trough junction tunnel which contains sensitive electronic equipment. In the case of the TI8 injection lines also the losses on the TCDIH.87904 collimator might represent a problem for the electronics in the UJ87 tunnel.

  2. AmI and Deployment Considerations in AAL Services Provision for Elderly Independent Living: The MonAMI Project

    Directory of Open Access Journals (Sweden)

    Alejandro Ibarz

    2013-07-01

    Full Text Available The MonAMI project aims to investigate the feasibility of the deployment of open platforms for Ambient Assisted Living (AAL services provision based on Ambient Intelligence (AmI and to test user acceptance and the usability of the services. Services were designed to provide support in the areas of environmental control, security, well-being and leisure. These services were installed and evaluated in a Spanish geriatric residence. The participants included elderly persons with disabilities, nursing home care givers and informal carers. The concept of the open platform proved to be satisfactory for the provision of the services in a context aware framework. Furthermore, the usability of the technology was viewed positively and the overall results indicate that this system has the potential to prolong independent living at home for elderly people with disabilities. Deployment was proven successful and awareness of open-platform AAL service delivery was raised in local communities throughout Europe.

  3. Comparison of broiler performance and carcass parameters when fed diets containing soybean meal produced from glyphosate-tolerant (MON 89788), control, or conventional reference soybeans.

    Science.gov (United States)

    Taylor, M; Hartnell, G; Lucas, D; Davis, S; Nemeth, M

    2007-12-01

    A 42-d floor pen study was conducted to compare broiler (Ross x Ross 308) performance and carcass measurements when fed diets containing meal produced from glyphosate-tolerant soybeans (MON 89788) with those of broilers fed diets containing meal produced from control soybean (A3244) that has similar genetic background to MON 89788. Soybean meal produced from 6 conventional soybean varieties was included in the study to provide comparison measurements for broilers fed meal derived from conventional soybeans. It has been found that MON 89788 produces the 5-enolpyruvylshikimate-3-phosphate synthase protein from Agrobacterium sp. strain CP4 (cp4 epsps), which confers tolerance to glyphosate, the active ingredient in Roundup agricultural herbicides. Broilers were fed starter diets (approximately 33% wt/wt dehulled soybean meal) from d 0 to 21 and grower-finisher diets (approximately 30% wt/wt dehulled soybean meal) from d 21 to 42. The study utilized a randomized complete block design with 8 dietary treatments assigned randomly within 5 blocks of 16 pens each (8 male and 8 female) with 10 birds per pen. There were 10 pens per treatment group (5 male and 5 female). No treatment differences (P > 0.05) were detected among dietary treatments for feed intake, weight gain, adjusted feed conversion, or any measured carcass and meat quality parameters. Comparison of all performance, carcass, and meat quality parameters measured showed no differences (P > 0.05) between birds fed the MON 89788 soybean meal diet and the population of birds fed the control and 6 conventional reference soybean meal diets. It is concluded that the diets containing soybean meal produced from MON 89788 were nutritionally equivalent to diets containing soybean meal produced from the control and conventional reference soybean varieties when fed to broilers.

  4. Period studies of classical Algol-type binaries II: UX Leo, RW Mon, EQ Ori, XZ UMa and AX Vul

    Science.gov (United States)

    Soydugan, F.; Erdem, A.; Doğru, S. S.; Aliçavuş, F.; Soydugan, E.; Çiçek, C.; Demircan, O.

    2011-07-01

    This study presents an investigation of the orbital period variations of five Algol type binaries, UX Leo, RW Mon, EQ Ori, XZ UMa and AX Vul based on all available minima times. The O- C diagrams of all systems exhibit a periodic variation superimposed on a downward parabolic segment. The mass loss due to magnetic braking effect in the cooler components is assumed to account for the parabolic variation with a downward shape, while it is suggested that the light-time effect (LITE) due to an unseen component around the eclipsing binaries explains the tilted sinusoidal changes in their O- C diagrams. The orbital period decrease rates for the systems are estimated as approximately between about 0.7 and 2.5 s per century. It is clearly seen that mass loss effect is more dominant than the expected mass transfer for classical Algols in this study. The minimum mass of the probable third bodies around the eclipsing pairs was calculated to be ⩽0.5 M ⊙ except for UX Leo, in which it was estimated to be approximately 0.9 M ⊙. In order to search for third lights in the light curves of five systems, the V-light curves of the systems were analyzed and their physical and photometric parameters were determined. For UX Leo, a significant third light contribution was determined. We found a very small third light that can be tested using multi-color light curves, for RW Mon, EQ Ori and XZ UMa, while a third light for AX Vul could not be exposed.

  5. Actividad Monástica y acción política en Fructuoso de Braga

    Directory of Open Access Journals (Sweden)

    López Quiroga, Jorge

    2002-06-01

    Full Text Available The social and political context of Hispania in the second half of 7th century was very difficult. San Fructuoso and his ideas were different from the habitual ones. His religious model and his monastic reform are new in the visigoth world. In this work we analyze the foundations of Fructuoso in the Southeastern of the Iberian Peninsula (Vid. Fruct. 14. This work reflects the religious, social and political consequences of the monacato in the reorganization of Iberian society at the end of the antiquity.

    En el marco de un contexto socio-político particularmente difícil, como es el que correspondería a la Hispania visigoda de la segunda mitad del siglo VII d. C., la aparición de una figura como Fructuoso supondría un auténtico tournant no sólo en lo que respecta al modelo religioso que propugna, sino, sobre todo, en el conflicto latente entre el tipo de vida monástica «fructuosiana» y el Estado visigodo, personalizado aquí en la figura del monarca. En este breve trabajo, el episodio referente a las fundaciones monásticas de Fructuoso en el Sureste Peninsular (narrado en la Vit Fruct. 14 nos servirá de hilo conductor para hacer una pequeña reflexión sobre las implicaciones no sólo religiosas, sino, sobre todo, sociales y políticas del monacato como uno de los exponentes del proceso de desestructuración que conduce al 'final de la Antigüedad' en la Península Ibérica.

  6. Using the Multi-Object Adaptive Optics demonstrator RAVEN to observe metal-poor stars in and towards the Galactic Centre

    CERN Document Server

    Lamb, Masen; Andersen, David; Oya, Shin; Shetrone, Matthew; Fattahi, Azadeh; Howes, Louise; Asplund, Martin; Lardiere, Olivier; Akiyama, Masayuki; Ono, Yoshito; Terada, Hiroshi; Hayano, Yutaka; Suzuki, Genki; Blain, Celia; Jackson, Kathryn; Correia, Carlos; Youakim, Kris; Bradley, Colin

    2016-01-01

    The chemical abundances for five metal-poor stars in and towards the Galactic bulge have been determined from H-band infrared spectroscopy taken with the RAVEN multi-object adaptive optics science demonstrator and the IRCS spectrograph at the Subaru 8.2-m telescope. Three of these stars are in the Galactic bulge and have metallicities between -2.1 < [Fe/H] < -1.5, and high [alpha/Fe] ~+0.3, typical of Galactic disk and bulge stars in this metallicity range; [Al/Fe] and [N/Fe] are also high, whereas [C/Fe] < +0.3. An examination of their orbits suggests that two of these stars may be confined to the Galactic bulge and one is a halo trespasser, though proper motion values used to calculate orbits are quite uncertain. An additional two stars in the globular cluster M22 show [Fe/H] values consistent to within 1 sigma, although one of these two stars has [Fe/H] = -2.01 +/- 0.09, which is on the low end for this cluster. The [alpha/Fe] and [Ni/Fe] values differ by 2 sigma, with the most metal-poor star sho...

  7. The Flynn effect in Brazil: Examining generational changes in the Draw-a-Person and in the Raven's Coloured Progressive Matrices

    Directory of Open Access Journals (Sweden)

    Denise R. Bandeira

    2012-01-01

    Full Text Available Diferentes estudios han mostrado un aumento en las puntuaciones de los tests de inteligencia a lo largo de las últimas décadas - el "efecto Flynn". Sin embargo, el hecho de que este efecto no se haya observado consistentemente cuando las fuentes de habilidad cognitiva son utilizadas, hace que éste sea uno de los principales temas de discusión. Por tanto, la presente investigación tuvo como objetivo arrojar algo de luz sobre esta cuestión. Dos estudios que utilizaron diferentes medidas de habilidad cognitiva fueron diseñados con el fin de controlar los efectos de medición potencial. En el estudio participaron niños brasileños con edades comprendidas entre 6-12 años. El primer estudio tenía la prueba Dibujo de la figura humana como medida de la inteligencia; 294 niños fueron evaluados durante la década de 1980, mientras que 203 fueron evaluadosdurante la década del 2000. El segundo estudio utilizo las matrices de colores progresivas de Raven. Un total de 562 niños fueron evaluados durante la década de 1990, y 243 en la década del 2000. Los resultados no mostraronefectos significativos de generación, independientemente de la medida utilizada. Los aspectos educativos y sociales son considerados para explicar estos resultados.

  8. The SEMA5A gene is associated with hippocampal volume, and their interaction is associated with performance on Raven's Progressive Matrices.

    Science.gov (United States)

    Zhu, Bi; Chen, Chuansheng; Xue, Gui; Moyzis, Robert K; Dong, Qi; Chen, Chunhui; Li, Jin; He, Qinghua; Lei, Xuemei; Wang, Yunxin; Lin, Chongde

    2014-03-01

    The Allen Brain Atlas shows that the semaphorin 5A (SEMA5A) gene, which encodes an important protein for neurogenesis and neuronal apoptosis, is predominantly expressed in the human hippocampus. Structural and functional neuroimaging studies have further shown that the hippocampus plays an important role in the performance on Raven's Progressive Matrices (RPM), a measure of reasoning ability and general fluid intelligence. Thus far, however, no study has examined the relationships between the SEMA5A gene polymorphism, hippocampal volume, and RPM performance. The current study collected both structural MRI, genetic, and behavioral data in 329 healthy Chinese adults, and examined associations between SEMA5A variants, hippocampal volume, and performance on RAPM (the advanced form of RPM). After controlling for intracranial volume (ICV), sex, and age, SEMA5A genetic polymorphism at the SNP rs42352 had the strongest association with hippocampal volume (p=0.00000552 and 0.000103 for right and left hippocampal volumes, respectively), with TT homozygotes having higher hippocampal volume than the other genotypes. Furthermore, there was a high correlation between right hippocampal volume and RAPM performance (r=0.42, p=0.0000509) for SEMA5A rs42352 TT homozygotes. This study provides the first evidence for the involvement of the SEMA5A gene in hippocampal structure and their interaction on RAPM performance. Future studies of the hippocampus-RPM associations should consider genetic factors as potential moderators.

  9. Neural substrates of fluid reasoning: an fMRI study of neocortical activation during performance of the Raven's Progressive Matrices Test.

    Science.gov (United States)

    Prabhakaran, V; Smith, J A; Desmond, J E; Glover, G H; Gabrieli, J D

    1997-06-01

    We examined brain activation, as measured by functional magnetic resonance imaging, during problem solving in seven young, healthy participants. Participants solved problems selected from the Raven's Progressive Matrices Test, a test known to predict performance on a wide range of reasoning tasks. In three conditions, participants solved problems requiring (1) analytic reasoning; (2) figural or visuospatial reasoning; or (3) simple pattern matching that served as a perceptual-motor control. Right frontal and bilateral parietal regions were activated more by figural than control problems. Bilateral frontal and left parietal, occipital, and temporal regions were activated more by analytic than figural problems. All of these regions were activated more by analytic than match problems. Many of these activations occurred in regions associated with working memory. Figural reasoning activated areas involved in spatial and object working memory. Analytic reasoning activated additional areas involved in verbal working memory and domain-independent associative and executive processes. These results suggest that fluid reasoning is mediated by a composite of working memory systems.

  10. Multi-symbolic Quality in Poe's Raven%论埃德加《乌鸦》一诗中的象征性

    Institute of Scientific and Technical Information of China (English)

    石卫华

    2002-01-01

    Edgar Allan Poe is an important American south poet during the Romantic period.He is best-known for his writing techniques,especially skilled in using symbolism and metre.This paper explores Poe's multi-symbolic quality in his representative work-"The Raven"and analyses this poem from many angles-content,structure,rhetoric,prosody etc.By this analysis,an objective impartial evaluation on Edgar Allan Poe is given.%埃德加爱伦·坡(Edgar Allan Poe 1809-1849)是美国文学史上一位颇有影响的南方作家.一诗集中体现了他的诗歌创作原则,本文从该诗的形式及创作技巧方面,侧重分析了象征主义手法的运用,从而为解读该诗及他的其他诗作找到了一把钥匙,进而重新评估了这位与众不同美国浪漫主义作家的文学地位.

  11. Auditory and visual event-related potentials and flash visual evoked potentials in Alzheimer's disease: correlations with Mini-Mental State Examination and Raven's Coloured Progressive Matrices.

    Science.gov (United States)

    Tanaka, F; Kachi, T; Yamada, T; Sobue, G

    1998-01-01

    We investigated possible correlations among neurophysiological examinations [auditory and visual event-related potentials (A-ERPs, V-ERPs), and flash visual evoked potentials (F-VEPs)] and neuropsychological tests [Mini-Mental State Examination (MMSE) and Raven's Coloured Progressive Matrices (RCPM)] in 15 subjects with probable or possible Alzheimer's disease (AD) according to the National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) criteria. The P300 latency of A-ERPs was correlated with the scores of MMSE but not with those of RCPM. The P300 latency of V-ERPs was more significantly correlated with the scores of RCPM than with those of MMSE. The P2 latency of F-VEPs was more significantly correlated with the scores of RCPM than with those of MMSE. The P2 latency of F-VEPs was not correlated with the P300 latency of A-ERPs but was correlated with the P300 latency of V-ERPs. The close relationship among V-ERPs, F-VEPs and RCPM suggests that these examinations at least partly reflect the functions of visual association areas in AD. Furthermore, discrepancy between P300 latency by A-ERPs and V-ERPs suggests that the mechanism responsible for P300 generation is not identical between these two stimulus modalities.

  12. Quantitative reconstruction of temperature at a Jōmon site in the Incipient Jōmon Period in northern Japan and its implications for the production of early pottery and stone arrowheads

    Science.gov (United States)

    Kawahata, Hodaka; Ishizaki, Yui; Kuroyanagi, Azumi; Suzuki, Atsushi; Ohkushi, Ken-ichi

    2017-02-01

    The first emergence and development of pottery is an important archeological research topic. Climate change and associated ecological changes likely promoted the development of pottery. However, little is known about these environmental factors at the regional scale. Sedimentary Core MD01-2409 was collected off the coast of northern Honshu, Japan, and provided an excellent opportunity to quantitatively estimate temperature using an alkenone proxy. This estimation is based upon the positive correlation between the sea surface temperature (SST) and the atmospheric temperature (AT) near the core collection site. The Jōmon began to produce the earliest pottery found in Japan during this period. This corresponds to a climatic anomaly that could be attributed to one of the global effects of the Heinrich Event I. The event's origin in the northern North Atlantic consequently weakened the Asian Monsoon because the two are linked via atmospheric circulation. Japan experienced its coldest summer (SST of 8.7 °C; AT of 5.2 °C) around 15.68 cal kyr BP; these summer temperatures were approximately 7-11 °C lower than they are currently (∼15.7 °C and ∼16.7 °C), respectively. The summer environment was a little colder than those experienced in the present-day cities of Nemuro and/or Nosappu in Hokkaido. Subsistence in a terrestrial environment would have been difficult for the Jōmon people; however, marine products such as fish and shellfish would have been plentiful. These conditions are consistent with the evidence that the earliest pottery was predominantly used for cooking marine and freshwater resources and increased diversification in the range of aquatic products used. The Bølling-Allerød and pre-Boreal warm Episodes during deglaciation warmed climatic environments and enhanced marine biogenic production. The maximum SST during this period is comparable to the modern SST despite its short duration (of approximately a century or less). Even though the

  13. From forced collapse to H ii region expansion in Mon R2: Envelope density structure and age determination with Herschel⋆

    Science.gov (United States)

    Didelon, P.; Motte, F.; Tremblin, P.; Hill, T.; Hony, S.; Hennemann, M.; Hennebelle, P.; Anderson, L. D.; Galliano, F.; Schneider, N.; Rayner, T.; Rygl, K.; Louvet, F.; Zavagno, A.; Könyves, V.; Sauvage, M.; André, Ph.; Bontemps, S.; Peretto, N.; Griffin, M.; González, M.; Lebouteiller, V.; Arzoumanian, D.; Bernard, J.-P.; Benedettini, M.; Di Francesco, J.; Men'shchikov, A.; Minier, V.; Nguyên Luong, Q.; Palmeirim, P.; Pezzuto, S.; Rivera-Ingraham, A.; Russeil, D.; Ward-Thompson, D.; White, G. J.

    2015-12-01

    Context. The surroundings of H ii regions can have a profound influence on their development, morphology, and evolution. This paper explores the effect of the environment on H ii regions in the MonR2 molecular cloud. Aims: We aim to investigate the density structure of envelopes surrounding H ii regions and to determine their collapse and ionisation expansion ages. The Mon R2 molecular cloud is an ideal target since it hosts an H ii region association, which has been imaged by the Herschel PACS and SPIRE cameras as part of the HOBYS key programme. Methods: Column density and temperature images derived from Herschel data were used together to model the structure of H ii bubbles and their surrounding envelopes. The resulting observational constraints were used to follow the development of the Mon R2 ionised regions with analytical calculations and numerical simulations. Results: The four hot bubbles associated with H ii regions are surrounded by dense, cold, and neutral gas envelopes, which are partly embedded in filaments. The envelope's radial density profiles are reminiscent of those of low-mass protostellar envelopes. The inner parts of envelopes of all four H ii regions could be free-falling because they display shallow density profiles: ρ(r) ∝ r- q with q ≤slant 1.5. As for their outer parts, the two compact H ii regions show a ρ(r) ∝ r-2 profile, which is typical of the equilibrium structure of a singular isothermal sphere. In contrast, the central UCH ii region shows a steeper outer profile, ρ(r) ∝ r-2.5, that could be interpreted as material being forced to collapse, where an external agent overwhelms the internal pressure support. Conclusions: The size of the heated bubbles, the spectral type of the irradiating stars, and the mean initial neutral gas density are used to estimate the ionisation expansion time, texp ~ 0.1 Myr, for the dense UCH ii and compact H ii regions and ~ 0.35 Myr for the extended H ii region. Numerical simulations with and

  14. El saber de los claustros: las escuelas monásticas y catedralicias en la Edad Media

    Directory of Open Access Journals (Sweden)

    Guijarro González, Susana

    2008-06-01

    Full Text Available This article presents a summary of the role played by the monastic and cathedral schools in the transmission of knowledge during the Middle Ages. Using the periods established by the Medieval historiography as reference, the following factors are considered in the shaping of the school curriculum: libraries, manuscripts production and the activity of the schoolmasters. What is more, these factors let us identify the centres of the cultural geography of Medieval Western Europe up to the birth of the universities at the beginning of the Thirteenth century. The monastic and cathedral schools provided a syllabus that combined knowledge and ethics (littera et mores through the study of grammar and rhetoric (cultivation of classical virtues. The majority of literate people were educated in these institutions during the medieval centuries, especially clerks and monks, versatile men who served both to the Church and the royal and lordship courts with equal skill. In this way, the ecclesiastical schools symbolized the close alliance between learning and power that was consolidated during the Late Middle Ages.En este artículo se presenta una síntesis de papel jugado por las escuelas monásticas y catedralicias en la transmisión del conocimiento en la Edad Media. Siguiendo los períodos cronológicos establecidos por la historiografía medieval, las bibliotecas, la producción de manuscritos y la actividad de los maestros son considerados factores de primer orden en la configuración del curriculum escolar. Además, permiten perfilar los centros de la geografía cultural del Occidente medieval hasta el surgimiento de las universidades a comienzos del siglo XIII. Las escuelas monásticas y catedralicias ofrecieron un programa que conjugaba el saber con la ética (littera et mores, a través del estudio de la gramática y la retórica (cultus virtutum. Estas instituciones formaron a la mayoría de los alfabetizados (litterati durante los siglos medievales

  15. Geology of the western, eastern and northern flanks of the Olympus Mons volcano as seen in HRSC and MOC images

    Science.gov (United States)

    Basilevsky, A. T.; Werner, S. C.; van Gasselt, S.; Neukum, G.; Dumke, A.; Ivanov, B. A.; Gwinner, K.

    This study is based on the analysis of images taken by MEX High Resolution Stereo Camera and in combination with MGS MOC images. 3-D imagery in the form of HRSC-based anaglyphs and DTMs were very helpful for the study. Our observation and analysis confirm the well-known interpretation of Olympus Mons as a giant shield volcano, but also show that this construct locally has probably partly been made of airborne dust (and/or ash) and ice layered deposits (Neukum et al, 2004; Basilevsky et al., 2005; this study). The deposits form mesas locally standing above the lava fields in the volcano western and eastern flanks as well as ridges locally observed at the top parts of the scarps rimming the Olympus construct on its western and northern flanks. The ridge tops stand a few hundred meters above the adjacent lava flows coming from the volcano top. Ice presence in these deposits was inferred from the presence of "collapse" features locally extending downslope as channel-like forms. The neutron-spectrometry measurements (Feldman et al., 2004) show a noticeable decrease in the neutron flux suggesting presence of up to 15-18 vol. % of equivalent water (ice) in the upper 1 m surface layer in the western part of the construct. The ice-rich deposits could have been emplaced during the epochs of high orbital inclination of Mars (Mishna et al., 2004) and could be partly preserved in the modern epoch due to protecting dust covers (Skorov et al., 2001). At the foot of the western slope of the volcano are seen flow-like features interpreted as remnants of rock glaciers (Lucchitta, 1981; Milkovich and Head, 2006). The dating by crater statistics shows that different areas of the Olympus Mons construct and lava fields at its foot have a spread of ages from >3.5 b.y. to 2 m.y. and glacier-like flows show a 0.5 b.y. to 4 m.y. age range. The eastern flank of the volcano shows a complex of morphologies caused by fluvial (channels), tectonic (wrinkle ridges) and volcanic (lava flows and

  16. Comparison of ESBL--and AmpC producing Enterobacteriaceae and methicillin-resistant Staphylococcus aureus (MRSA isolated from migratory and resident population of rooks (Corvus frugilegus in Austria.

    Directory of Open Access Journals (Sweden)

    Igor Loncaric

    Full Text Available In order to test whether rooks (Corvus frugilegus represent good indicators for the potential circulation of antibiotics in their native habitat, two populations with different migratory behavior were tested for the presence of beta-lactamase producing Enterobacteriaceae and methicillin-resistant Staphylococcus aureus (MRSA. In all, 54 and 102 samples of fresh feces of a migratory and a resident population were investigated. A total of 24 and 3 cefotaxime-resistant enterobacterial isolates were obtained from the migratory and resident population, respectively. In these isolates CTX-M-1 (n = 15, CTX-M-3 (n = 3, and CTX-M-15 (n = 3 genes were detected. TEM-1 and OXA-1 were associated with CTX-M in 3 and 2 isolates, respectively. In two E. coli isolates CMY-2 could be detected, where from one isolate displayed an overexpression of chromosomal AmpC as well. Among E. coli isolates the most common phylogenetic group was A (n = 11 and ST1683 (n = 5. In one E. coli of B2-ST131 the rfbO25b locus was detected. Three Enterobacter isolates were stably derepressed AmpC-producers. In five samples of the migratory population, PVL positive MRSA could be isolated. Two isolates were typed SCCmec IVa, spa type t127, and ST1. Three isolates carried a SCCmec type IVc, with spa type t852 and ST22. The highly significant difference of the occurrence of antibiotic resistance between the migratory population from eastern Europe compared to resident population in our study indicates that rooks may be good indicator species for the evaluation of environmental contamination with antibiotic resistant bacteria, especially due to their ecology, foraging behavior and differing migratory behavior.

  17. Adoption et utilisation du porte-monnaie électronique Monéo – Essai empirique sur un échantillon test

    OpenAIRE

    Olivier Chanel; Zouhaïer M’Chirgui

    2011-01-01

    Le porte-monnaie électronique (PME) est l’une des dernières innovations technologiques de paiement fondée sur la technologie « carte à puce ». Toutefois, le PME Monéo peine à se généraliser en France alors même que d’autres PME dans le monde connaissent le succès. Nous nous appuyons sur un échantillon test de 100 consommateurs de la région marseillaise pour examiner les facteurs expliquant la décision d’adopter Monéo, et la fréquence de son usage chez 50 utilisateurs. En modélisant la dépenda...

  18. El papel de la contabilidad monástica a lo largo de la historia en el orbe cristiano. Una revisión

    Directory of Open Access Journals (Sweden)

    Lorenzo Maté Sadornil

    2017-07-01

    Este análisis revela una diversidad de objetivos para los que esta ha resultado de utilidad. Ha supuesto un elemento clave para la supervivencia de estas instituciones a lo largo de los siglos, razón por la cual se le presta una atención primordial en las normas de gobierno de las distintas órdenes monásticas.

  19. Økologisk risikovurdering af en genmo-dificeret glyfosat-tolerant raps MON 88302 i anmeldelse til godkendelse vedr. import til markedsføring under Forordning 1829/2003/EF

    DEFF Research Database (Denmark)

    Kjellsson, Gøsta; Sørensen, Jesper Givskov; Damgaard, Christian

    2012-01-01

    Den genmodificerede raps, MON88302, adskiller sig fra konventionel raps ved at have indsat et gen der gør planten tolerant over for herbicidet glyfosat. Rapsen søges kun godkendt til import til foder og fødevarer for human konsumtion. DCE, Bioscience anser det for sandsynligt at MON 88302-rapsen ...... and surroundings. Although, not directly an environmental issue, we find that dispersal of the MON 88302 oilseed rape could result in problems for co-existence with non-GMO-cultivation......., Bioscience concludes, that accidental dispersal, hybridisation and persistence of the MON 88302-oilseed rape is likely to take place over time. The consequences to the environment are likely to be small. Fur-thermore, there are methods to monitor such dispersal of the GMO-plant into cultivated fields......Den genmodificerede raps, MON88302, adskiller sig fra konventionel raps ved at have indsat et gen der gør planten tolerant over for herbicidet glyfosat. Rapsen søges kun godkendt til import til foder og fødevarer for human konsumtion. DCE, Bioscience anser det for sandsynligt at MON 88302-rapsen og...

  20. Scientific Opinion on a request from the European Commission related to the safeguard clause notified by Greece on genetically modified maize MON 810 according to Article 23 of Directive 2001/18/EC

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2012-09-01

    Full Text Available

    Following a request of the European Commission, the European Food Safety Authority’s Panel on Genetically Modified Organisms (EFSA GMO Panel evaluated the documentation submitted by Greece in support of its request for the prohibition of the placing on the market of the genetically modified maize MON 810 according to Article 23 of Directive 2001/18/EC. The EFSA GMO Panel notes that the majority of the publications referred to by Greece were already addressed by the EFSA GMO Panel in previous scientific outputs on maize MON 810 or other related insect-resistant genetically modified maize transformation events. In the remaining evidence provided by Greece, the EFSA GMO Panel could not identify any new data subject to scientific scrutiny or scientific information that would invalidate its previous risk assessments of maize MON 810. With regard to issues related to management and monitoring of maize MON 810, the EFSA GMO Panel refers to its recent recommendations for management and monitoring measures of maize MON 810. In conclusion, the EFSA GMO Panel considers that, based on the documentation submitted by Greece, there is no specific scientific evidence, in terms of risk to human and animal health or the environment, that would support the notification of a safeguard clause under Article 23 of Directive 2001/18/EC and that would invalidate the GMO Panel’s previous risk assessments of maize MON 810.

  1. Monólogos humorísticos televisivos en la clase de español como lengua extranjera: Herramientas de aprendizaje

    Directory of Open Access Journals (Sweden)

    Fermín Martos Eliche

    2015-01-01

    Full Text Available El estudio que presentamos pretende añadir una visión interdisciplinar del uso de un tipo de discurso muy extendido en nuestra sociedad que ejemplifica muy adecuadamente la llamada inteligencia cultural: el monólogo. Se trata de acercar al estudiante de español de niveles avanzados a elementos subyacentes - difícilmente explicables- de los diferentes niveles lingüísticos y culturales del español a través de los monólogos humorísticos que aparecen en televisión. Analizamos la importancia del humor y de la inteligencia cultural en estos monólogos, haciendo hincapié en lo que llamamos minimonólogos y su utilidad en la enseñanza del español como lengua extranjera, pues en ellos confluyen los más diversos elementos culturales de la lengua, lo que permite al estudiante acercarse a la realidad a la vez que se divierte durante el proceso educativo.

  2. The spectroscopic evolution of the $\\gamma$-ray emitting classical nova Nova Mon 2012. I. Implications for the ONe subclass of classical novae

    CERN Document Server

    Shore, S N; Schwarz, G J; Augusteijn, T; Cheung, C C; Walter, F M; Starrfield, S

    2013-01-01

    Nova Mon 2012 was the first classical nova to be detected as a high energy $\\gamma$-ray transient, by Fermi-LAT, before its optical discovery. We study a time sequence of high resolution optical echelle spectra (Nordic Optical Telescope) and contemporaneous NOT, STIS UV, and CHIRON echelle spectra (Nov 20/21/22). We use [O III] and H$\\beta$ line fluxs to constrain the properties of the ejecta. We derive the structure from the optical and UV line profiles and compare our measured line fluxes for with predictions using Cloudy with abundances from other ONe novae. Mon 2012 is confirmed as an ONe nova. We find E(B-V)=0.85$\\pm$0.05 and hydrogen column density $\\approx 5\\times 10^{21}$ cm$^{-2}$. The corrected continuum luminosity is nearly the same in the entire observed energy range as V1974 Cyg, V382 Mon, and Nova LMC 2000 at the same epoch after outburst. The distance, about 3.6 kpc, is quite similar to V1974 Cyg. The line profiles can be modeled using an axisymmetric bipolar geometry for the ejecta with variou...

  3. Retraduzir a obra para traduzir o rascunho: tradução da poética do rascunho em Mon coeur mis à nu, de Charles Baudelaire

    Directory of Open Access Journals (Sweden)

    Oliveira, Thiago Mattos de

    2015-10-01

    Full Text Available Similarly to Fernando Pessoa’s Livro do Desassossego, Mon coeur mis à nu presents itself as an unfinished work, constituted by disperse, provisional, sometimes incomplete notes. Some critics believe that such works were not meant to be oeuvres, but drafts, works in progress, unachieved-unachievable texts. Based on Didier’s (1973 notion of draft poetics, it is now possible to consider that incompleteness is inherent to these works; they constitute themselves in and through their incompleteness. Provisionality, hesitancy, unfinishedness are constitutive of this draft poetics. It is our aim to discuss and work out a way of translating Mon coeur mis à nu by building on its procedural and incomplete dimension, seeking to highlight the many ways of ordering and structuring the text, and paying attention to the materiality of the manuscript and its revision process. Therefore, I propose resorting to hypertext, a translational and editorial strategy that would allow a rhizomatic and multicursal reading of this material, enabling the reader to experience the haunting and the “monstrosity” of the moving textuality that appears in Mon coeur mis à nu.

  4. Chemical and physical parameters from X-ray high resolution spectra of the Galactic nova V959 Mon

    CERN Document Server

    Peretz, U; Behar, E; Bianchini, A; Gallagher, J; Rauch, T; Tofflemire, B; Zemko, P

    2016-01-01

    Two observations of V959 Mon, done using the Chandra X-ray gratings during the late outburst phases (2012 September and December), offer extraordinary insight into the physics and chemistry of this Galactic ONe nova. the X-ray flux was 1.7 x 10(-11) erg/cm(2)/s and 8.6 x 10(-12) erg/cm(2)/s, respectively at the two epochs. The first result, coupled with electron density diagnostics and compared with published optical and ultraviolet observations, indicates that most likely in 2012 September the X-rays originate from a very small fraction of the ejecta, concentrated in very dense clumps. We obtained a fairly good fit to the September spectrum with a model of plasma in collisional ionization equilibrium (CIE) with two components; one at a temperature of 0.78 keV, blueshifted by 710-930 km/s, the other at a temperature of 4.5 keV, mostly contributing to the high-energy continuum. However, we cannot rule out a range of plasma temperatures between these two extremes. In December, the central white dwarf (WD) becam...

  5. RelMon: A general approach to QA, validation and physics analysis through comparison of large sets of histograms

    CERN Document Server

    Piparo, Danilo

    2012-01-01

    The estimation of the compatibility of large amounts of histogram pairs is a recurrent problem in high energy physics. The issue is common to several different areas, from software quality monitoring to data certification, preservation and analysis. Given two sets of histograms, it is very important to be able to scrutinize the outcome of several goodness of fit tests, obtain a clear answer about the overall compatibility, easily spot the single anomalies and directly access the concerned histogram pairs. This procedure must be automated in order to reduce the human workload, therefore improving the process of identification of differences which is usually carried out by a trained human mind. Some solutions to this problem have been proposed, but they are experiment specific. RelMon depends only on ROOT and offers several goodness of fit tests (e.g. chi-squared or Kolmogorov-Smirnov). It produces highly readable web reports, in which aggregations of the comparisons rankings are available as well as all the pl...

  6. CoRoT photometry and high-resolution spectroscopy of the interacting eclipsing binary AU Mon

    CERN Document Server

    Desmet, M; Baudin, F; Harmanec, P; Lampens, P; Pacheco, E Janot; Briquet, M; Degroote, P; Neiner, C; Mathias, P; Poretti, E; Rainer, M; Uytterhoeven, K; Amado, P J; Valtier, J -C; Prsa, A; Maceroni, C; Aerts, C

    2009-01-01

    Analyses of very accurate CoRoT space photometry, past Johnson V photoelectric photometry and high-resolution \\'echelle spectra led to the determination of improved and consistent fundamental stellar properties of both components of AU Mon. We derived new, accurate ephemerides for both the orbital motion (with a period of 11.113d) and the long-term, overall brightness variation (with a period of 416.9d) of this strongly interacting Be + G semi-detached binary. It is shown that this long-term variation must be due to attenuation of the total light by some variable circumbinary material. We derived the binary mass ratio $M_{\\rm G}/M_{\\rm B}$ = 0.17\\p0.03 based on the assumption that the G-type secondary fills its Roche lobe and rotates synchronously. Using this value of the mass ratio as well as the radial velocities of the G-star, we obtained a consistent light curve model and improved estimates of the stellar masses, radii, luminosities and effective temperatures. We demonstrate that the observed lines of the...

  7. Relatos de historias de pareja en el Chile actual: la intimidad como un monólogo colectivo

    Directory of Open Access Journals (Sweden)

    Dariela Sharim

    2011-09-01

    Full Text Available A la luz de los procesos de individualización social, se han descrito importantes cambios en el ámbito de la intimidad. En este marco, esta investigación indaga en los significados y en la experiencia subjetiva respecto a las relaciones de pareja, focalizándose en la dimensión psicológica de la intimidad. Se recogieron relatos de vida de hombres y mujeres adultos chilenos, quienes narraron sus historias de pareja. El supuesto de esta relación como emblemática del espacio de intimidad, se ve cuestionado por los resultados. Al hablar de pareja, los narradores no hablaron de intimidad. Transmitieron más bien un sentimiento de temor o amenaza y la evitación del otro en este espacio. De sus relatos se desprende que los ideales de pareja se construyen paradojalmente de manera individual, instalándose una manera de ser en pareja que hemos denominado "monólogo colectivo".

  8. The first CO+ image. I. Probing the HI/H2 layer around the ultracompact HII region Mon R2

    Science.gov (United States)

    Treviño-Morales, S. P.; Fuente, A.; Sánchez-Monge, Á.; Pilleri, P.; Goicoechea, J. R.; Ossenkopf-Okada, V.; Roueff, E.; Rizzo, J. R.; Gerin, M.; Berné, O.; Cernicharo, J.; Gónzalez-García, M.; Kramer, C.; García-Burillo, S.; Pety, J.

    2016-09-01

    The CO+ reactive ion is thought to be a tracer of the boundary between a Hii region and the hot molecular gas. In this study, we present the spatial distribution of the CO+ rotational emission toward the Mon R2 star-forming region. The CO+ emission presents a clumpy ring-like morphology, arising from a narrow dense layer around the Hii region. We compared the CO+ distribution with other species present in photon-dominated regions (PDR), such as [Cii] 158 μm, H2 S(3) rotational line at 9.3 μm, polycyclic aromatic hydrocarbons (PAHs), and HCO+. We find that the CO+ emission is spatially coincident with the PAHs and [Cii] emission. This confirms that the CO+ emission arises from a narrow dense layer of the Hi/H2 interface. We determined the CO+ fractional abundance relative to C+ toward three positions. The abundances range from 0.1 to 1.9 × 10-10 and are in good agreement with the previous chemical model, which predicts that the production of CO+ in PDRs only occurs in dense regions with high UV fields. The CO+ linewidth is larger than those found in molecular gas tracers, and their central velocity are blueshifted with respect to the molecular gas velocity. We interpret this as a hint that the CO+ is probing photoevaporating clump surfaces.

  9. R2E-related MD: slow controlled losses for RadMon/BLM cross-checks

    CERN Document Server

    Calviani, M; Spiezia, G; Sapinski, M; Priebe, A; Nordt, A; Pojer, M; CERN. Geneva. ATS Department

    2011-01-01

    The purpose of the dedicated R2E MD has been to evaluate the R factor (i.e. the ratio between the thermal neutron fluence and the high energy hadron fluence (>20MeV) for various tunnel locations, to measure the HEH radiation level gradient along the MBC dipole and on the MQ, to check the ratio the BLM measured dose and RadMon SEU counts and to study the dose gradient between the standard BLM beam axis location and at the level of the equipment location. Within the R2E Mitigation Project, these accurate measurement and cross-check of the mentioned parameters are of great importance for the evaluation and interpretation of the R2E-related radiation levels, as well as for the evaluation of the failure cross-section of specific equipment (i.e. QPS ISO150). In addition, a short part of the MD has been devoted to the comparison of BLM signals generated by loss directed inwards and outwards with respect to the LHC ring.

  10. Remnant buried ice in the equatorial regions of Mars: Morphological indicators associated with the Arsia Mons tropical mountain glacier deposits

    Science.gov (United States)

    Scanlon, Kathleen E.; Head, James W.; Marchant, David R.

    2015-06-01

    The fan-shaped deposit (FSD) on the western and northwestern flanks of Arsia Mons is the remnant of tropical mountain glaciers, deposited several tens to hundreds of millions of years ago during periods of high spin-axis obliquity. Previous workers have argued that the Smooth Facies in the FSD contains a core of ancient glacial ice. Here, we find evidence that additional glacial ice remains preserved within several other landforms in the Smooth Facies and Ridged Facies. These include landforms that we interpret as kame and kettle topography on the basis of their distribution, size, and morphologies ranging progressively from knobs to degraded knobs to pits. We argue that some moraines in the Ridged Facies are ice-cored on the basis of their interactions with lava flows and the axial troughs at the crests of some moraines. We also argue that dunes with axial troughs, found in and surrounding the FSD, are the remnants of sediment-covered snow dunes formed by reworking of snow or glacial ice, and that the axial troughs form as tension cracks in the sediment and deepen by sublimation of the underlying ice. Long-term preservation of water ice in equatorial environments is assisted by a meters- to decameters-thick debris cover (lag) formed from sublimation of dirty ice, as well as burial beneath volcanic tephra and aeolian deposits. This ancient ice could contain preserved biosignatures, provide information on Martian climate and atmospheric history, and serve as a resource for human exploration.

  11. The first CO+ image: Probing the HI/H2 layer around the ultracompact HII region Mon R2

    CERN Document Server

    Trevino-Morales, S P; Sanchez-Monge, A; Pilleri, P; Goicoechea, J R; Ossenkopf-Okada, V; Roueff, E; Rizzo, J R; Gerin, M; Berne, O; Cernicharo, J; Gonzalez-Garcia, M; Kramer, C; Garcia-Burillo, S; Pety, J

    2016-01-01

    The CO+ reactive ion is thought to be a tracer of the boundary between a HII region and the hot molecular gas. In this study, we present the spatial distribution of the CO+ rotational emission toward the Mon R2 star-forming region. The CO+ emission presents a clumpy ring-like morphology, arising from a narrow dense layer around the HII region. We compare the CO+ distribution with other species present in photon-dominated regions (PDR), such as [CII] 158 mm, H2 S(3) rotational line at 9.3 mm, polycyclic aromatic hydrocarbons (PAHs) and HCO+. We find that the CO+ emission is spatially coincident with the PAHs and [CII] emission. This confirms that the CO+ emission arises from a narrow dense layer of the HI/H2 interface. We have determined the CO+ fractional abundance, relative to C+ toward three positions. The abundances range from 0.1 to 1.9x10^(-10) and are in good agreement with previous chemical model, which predicts that the production of CO+ in PDRs only occurs in dense regions with high UV fields. The CO...

  12. Alterações Induzidas Pelo Exercício no Número, Função e Morfologia de Monócitos de Ratos

    Science.gov (United States)

    GUERESCHI, MARCIA G.; PRESTES, JONATO; DONATTO, FELIPE F.; DIAS, RODRIGO; FROLLINI, ANELENA B.; FERREIRA, CLÍLTON KO.; CAVAGLIERI, CLAUDIA R.; PALANCH, ADRIANNE C.

    2008-01-01

    O propósito desse estudo foi verificar as alterações histofisiológicas em monócitos e macrófagos induzidas por curtos períodos de exercícios. Ratos Wistar (idade = 2 meses, peso corporal = 200g) foram divididos em sete grupos (n=6 cada): controle sedentário (C), grupos exercitados (natação) na intensidade leve por 5 (5L), 10 (10L) e 15 minutos (15L), e grupos exercitados em intensidade moderada por 5 (5M), 10 (10M) e 15 minutes (15M). Na intensidade moderada os animais carregaram uma carga de 5% do peso corporal dos mesmos em seus respectivos dorsos. Os monócitos sangüíneos foram avaliados quanto à quantidade e morfologia e os macrófagos peritoneais foram analisados quanto à quantidade e atividade fagocitária. Os dados foram analisados usando ANOVA e Tukey’s post hoc test (p ≤ 0,05). Os grupos de intensidade leve e 5M apresentaram aumento nos níveis dos monócitos quando comparados com o controle. Foi observado aumento na área celular dos monócitos para os grupos 5L, 10L, 5M e 10M; a área nuclear aumentou para os grupos 10L, 5M e 10M em comparação com o controle. Houve aumento nos macrófagos peritoneais para os grupos 15L, 10M, 15M e diminuição no grupo 5M. A capacidade fagocitária dos macrófagos aumentou nos grupos de intensidade leve e para o grupo 10M. O exercício realizado por curtos períodos modulou o número e função dos macrófagos, assim como o número e morfologia dos monócitos, sendo tais alterações dependentes da intensidade. A soma das respostas agudas observadas nesse estudo pode exercer um efeito protetor contra doenças, podendo ser utilizada para a melhora da saúde e qualidade de vida.

  13. Les épouses de mon père. À propos de la polygamie en pays beti

    Directory of Open Access Journals (Sweden)

    Michael Houseman

    2009-03-01

    Full Text Available Les épouses de mon père. À propos de la polygamie en pays beti. Chez les Beti du Cameroun, un homme de conséquence se reconnaît, entre autres choses, par son aptitude à entretenir un foyer polygame. En retraçant la carrière matrimoniale du père de famille de la maison où je résidais, les rapports conflictuels entre ses épouses ainsi que mes propres relations avec elles — dont notamment une intervention désastreuse que j’ai essayé de réparer treize ans plus tard —, je tente dans cet article de faire ressortir à la fois la précarité de l’entente polygyne et la place essentielle qu’occupe cette instabilité dans le cycle de développement des groupes domestiques.The wives of my father: polygamy in Beti country. Among the Beti of Cameroon, one way of recognising a man of importance is by his ability to maintain a polygamous household. By retracing the matrimonial career of the father of the family I was staying with, the antagonistic relations between the wives, and my own relations with them - including one disastrous intervention that I tried to repair thirteen years later -, this article aims to bring to light both the precarious nature of the polygynous concord and the important role this instability plays in the development cycle of domestic groups.

  14. Razonamiento revocable y lógicas no monótonas: un análisis conceptual

    Directory of Open Access Journals (Sweden)

    Javier Legris

    2002-01-01

    Full Text Available Se llama revocables a todos aquellos razonamientos no deductivos en los cuales la conclusión es obtenida a partir de información incompleta, es decir, a partir de premisas que representan condiciones insuficientes para afirmar la conclusión. En los razonamientos revocables, nueva información que se agregue a las premisas puede invalidar la inferencia hecha, pues daría lugar a inconsistencias. Así, la relación de inferencia que subyace a los razonamientos revocables no cumple con la propiedad de monotonía que satisface la relación usual de inferencia deductiva. Las lógicas no monótonas han surgido con la idea de formalizar este tipo de razonamientos. En este trabajo se sostendrá que el problema de la revocabilidad no atañe a operadores lógicos ni a la lógica en sentido estricto, sino a cómo la lógica es aplicada en diferentes contextos, lo que implica tomar en cuenta factores externos a la caracterización de operadores lógicos. Esta perspectiva no conduce a una modificación de la lógica, sino de la manera en que se organiza la información a partir de la cual se hacen las inferencias. Así, se debe agregar estructura a la información, considerando un razonamiento revocable como una estructura más compleja que un razonamiento deductivo.

  15. Intraoperative simulation of remnant liver function during anatomic liver resection with indocyanine green clearance (LiMON) measurements.

    Science.gov (United States)

    Thomas, Michael N; Weninger, Ernst; Angele, Martin; Bösch, Florian; Pratschke, Sebastian; Andrassy, Joachim; Rentsch, Markus; Stangl, Manfred; Hartwig, Werner; Werner, Jens; Guba, Markus

    2015-06-01

    Post-hepatectomy liver failure (PHLF) is the major cause of death following liver resection. The aim of this study was to evaluate the feasibility of an intraoperative simulation of post-resection liver function. Intraoperative liver function was measured by indocyanine green (ICG) clearance using the LiMON technology. In 20 patients undergoing anatomic liver resection, ICG plasma disappearance rate (PDR (%/min) and ICG retention at 15 min (R15 ) (%) were measured immediately after the induction of anaesthesia (t0 ), after selective arterial and portovenous inflow trial clamping (TC) of the resected liver segments (t1 ), after the completion of resection (t2 ) and before the closure of the abdominal cavity (t3 ). The median baseline (t0 ) PDR was 16.5%/min. Trial clamping of the inflow (t1 ) resulted in a significant reduction in PDR to 10.5%/min. Results under TC were similar to those obtained after resection (t2 ) (median PDR: 10.5%/min). Linear regression modelling showed that post-resection liver volume could be accurately predicted by TC of liver inflow (P < 0.0001), but not by determining the resected liver volume. Simulated post-resection liver function under TC correlated well with PHLF and length of hospital stay. Intraoperative ICG clearance measurements allow real-time monitoring of intraoperative liver function during surgery. Trial clamping of arterial and portovenous inflow accurately predicts immediate post-resection liver function. The intraoperative measurement of liver function and simulation of post-resection liver function may help to avoid PHLF. © 2015 International Hepato-Pancreato-Biliary Association.

  16. Monash Chemical Yields Project (Monχey) Element production in low- and intermediate-mass stars

    Science.gov (United States)

    Doherty, Carolyn; Lattanzio, John; Angelou, George; Campbell, Simon W.; Church, Ross; Constantino, Thomas; Cristallo, Sergio; Gil-Pons, Pilar; Karakas, Amanda; Lugaro, Maria; Stancliffe, Richard

    The Monχey project will provide a large and homogeneous set of stellar yields for the low- and intermediate- mass stars and has applications particularly to galactic chemical evolution modelling. We describe our detailed grid of stellar evolutionary models and corresponding nucleosynthetic yields for stars of initial mass 0.8 M⊙ up to the limit for core collapse supernova (CC-SN) ~ 10 M⊙. Our study covers a broad range of metallicities, ranging from the first, primordial stars (Z = 0) to those of super-solar metallicity (Z = 0.04). The models are evolved from the zero-age main-sequence until the end of the asymptotic giant branch (AGB) and the nucleosynthesis calculations include all elements from H to Bi. A major innovation of our work is the first complete grid of heavy element nucleosynthetic predictions for primordial AGB stars as well as the inclusion of extra-mixing processes (in this case thermohaline) during the red giant branch. We provide a broad overview of our results with implications for galactic chemical evolution as well as highlight interesting results such as heavy element production in dredge-out events of super-AGB stars. We briefly introduce our forthcoming web-based database which provides the evolutionary tracks, structural properties, internal/surface nucleosynthetic compositions and stellar yields. Our web interface includes user- driven plotting capabilities with output available in a range of formats. Our nucleosynthetic results will be available for further use in post processing calculations for dust production yields.

  17. Scientific Opinion on the annual post-market environmental monitoring (PMEM report from Monsanto Europe S.A. on the cultivation of genetically modified maize MON 810 in 2012

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2014-06-01

    Full Text Available Following a request from the European Commission, the Panel on Genetically Modified Organisms of the European Food Safety Authority (EFSA GMO Panel assessed the post-market environmental monitoring (PMEM report for the 2012 growing season of maize MON 810 provided by Monsanto Europe S.A. The EFSA GMO Panel noted that the applicant used a similar methodology as the one previously established for monitoring maize MON 810 in 2009, 2010 and 2011. The EFSA GMO Panel therefore focused its assessment on the novel datasets specific to the 2012 growing season of maize MON 810, and not on the methodology. The data submitted by the applicant in its 2012 PMEM report do not indicate any adverse effects on human and animal health or the environment arising from maize MON 810 cultivation in 2012. However, having already highlighted the poor sensitivity of the methodology followed by the applicant, the EFSA GMO Panel strongly reiterates its previous recommendations for the improvement of the methodology. In addition, the EFSA GMO Panel recommends that the applicant: (1 further investigates effects observed during the monitoring of baseline susceptibility of target pests in Spain; (2 follow-up possible adverse effects of maize MON 810 on rove beetles.

  18. Scientific Opinion on the annual Post-Market Environmental Monitoring (PMEM report from Monsanto Europe S.A. on the cultivation of genetically modified maize MON 810 in 2011

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2013-12-01

    Full Text Available Following the request from the European Commission, the Panel on Genetically Modified Organisms of the European Food Safety Authority (EFSA GMO Panel assessed the monitoring report for the 2011 growing season of maize MON 810 provided by Monsanto Europe S.A. The EFSA GMO Panel already assessed the 2009 and 2010 monitoring reports and followed the same approach as for the assessment of the methodology applied by the applicant for monitoring maize MON 810 in 2011. The EFSA GMO Panel considered the plan for insect-resistant management and addressed the comments raised by the applicant on its previous recommendations for improving the methodology of the resistance monitoring of target pests. The EFSA GMO Panel also paid particular attention to the design and analysis of the farmer questionnaires. The EFSA GMO Panel notes similar shortcomings in the overall methodology for the post-market environmental monitoring of maize MON 810 as in the previous monitoring reports. Hence, while the EFSA GMO Panel reiterates its previous recommendations for the improvement of the methodology, it also clarifies and elaborates on those related to the monitoring of resistance evolution in target pests. However, from the data submitted by the applicant, the EFSA GMO Panel does not identify adverse effects on the environment, human and animal health due to maize MON 810 cultivation during the 2011 growing season. The outcomes of the 2011 monitoring report do not invalidate the previous EFSA GMO Panel’s scientific opinions on maize MON 810.

  19. som Ungarn har fremsendt giver anledning til kommentarer eller ændringer i den risikovurdering som Danmark har gennemført i forbindelse med tilladelsen til markedsføring af majslinien MON810. " Zea mays (MON810), Indsigelse fra Ungarn vedr. nye oplysninger der påvirker risikovurderingen. Modtaget 20

    DEFF Research Database (Denmark)

    Kjellsson, Gøsta; Strandberg, Morten Tune; Damgaard, Christian

    2005-01-01

    "DMU vurderer at det præsenterede undersøgelsesmateriale fra Ungarn ikke giver nogen videnskabelig velbegrundet formodning om at den ovennævnte MON810-majs udgør en risiko for miljøet. Ungarn har således for nærværende ingen videnskabeligt baseret grund til at forbyde dyrkning og salg af såsæd in...

  20. Effects of Aircraft Noise and Sonic Booms on Domestic Animals and Wildlife: A Literature Synthesis

    Science.gov (United States)

    1988-06-01

    Aquatic mammals: Beluga whale Boat traffic (Acoustical Easily displaced Society of America 1980) Pinnepeds Sonic booms (80-89 dBA SPL) Startle...Arctic mammals are limited. Beluga whales (Delphinapterus leucas) are more easily displaced by boat traffic when feeding, and bowhead whales (Balaena...population of ravens (Corvus corax) to a sonic boom in central Wales Three or four ravens were idling in the upcurrents over a high rock spur between

  1. Síntesis de monómeros alilcarbonato para su posible aplicación en odontología

    OpenAIRE

    Ramírez Méndez, Marco Antonio

    2013-01-01

    Actualmente el avance en la tecnología y, la investigación en los materiales en odontología, tienen una contribución significativa, ya que se han obtenido resultados en el desarrollo de materiales durables y predictibles en el área de la restauración dental, como puede ser el caso de las resinas compuestas. Este trabajo, pretende sintetizar monómeros alilcarbonato para buscar posteriormente la aplicación de estos, en la elaboración de un material de uso dental; considerando que los polímeros ...

  2. Herramientas para desarrollar el reconocimiento ético en estudiantes universitarios: Una experiencia de aprendizaje con Pokémon Go

    OpenAIRE

    Vázquez Parra, José Carlos; Tecnologico de Monterrey, Campus Guadalajara; Encinas Soto, Adriana; García Béjar, Ezequiel

    2017-01-01

    El presente artículo, tiene por objetivo el exponer una experiencia de aprendizaje en un grupo de estudiantes universitarios de una institución privada de la ciudad de Guadalajara, México, mismo en el que por medio de un juego de realidad aumentada, Pokémon Go, se consiguió aportar a la sub-competencia ética de reconocimiento. Se considera que lo planteado es valioso, ya que contribuye al plantear un ejemplo en el que la formación ética se puede ayudar de las tendencias tecnológicas que resul...

  3. Interpretación de la semántica de conjuntos de respuestas como teorías no monótonas trivaluadas

    OpenAIRE

    Fillottrani, Pablo Rubén; Simari, Guillermo Ricardo

    1995-01-01

    En este trabajo se estudia la semántica de conjuntos de respuestas para programas lógicos extendidos [5,4, 3], bajo la interpretación de sistemas de razonamiento no monótono trivaluados. Esto permite establecer una relación entre esta semántica con variantes trivaluadas de la lógica autoepistémica y la circunscripción, fundamentando la introducción de nuevos patrones de razonamiento dentro de la semántica de programas lógicos. Luego en base a esta equivalencia se presenta una caracterización ...

  4. LHC RadMon SRAM Detectors Used at Different Voltages to Determine the Thermal Neutron to High Energy Hadron Fluence Ratio

    CERN Document Server

    Kramer, D; Pignard, C; Brugger, M; Spiezia, G; Roeed, K; Klupak, V; Wijnands, T

    2011-01-01

    The thermal neutron SEU cross-section of the Toshiba SRAM memory used in the LHC RadMon system was measured at different voltages. A method using the difference in its response compared to mixed particle energy field is proposed to be used as a discriminator between thermal neutron and high-energy hadron fluences. For test purposes, the proposed method was used at the CNGS and CERF facilities to estimate the field composition by counting SEUs at two different voltages and the results were compared to simulations.

  5. Will the introduction of Leishmania tropica MON-58, in the island of Crete, lead to the settlement and spread of this rare zymodeme?

    Science.gov (United States)

    Ntais, Pantelis; Christodoulou, Vasiliki; Tsirigotakis, Nikolaos; Dokianakis, Emmanouil; Dedet, Jean-Pierre; Pratlong, Francine; Antoniou, Maria

    2014-04-01

    The rare zymodeme, Leishmania tropica MON-58, was isolated from a young Afghan refugee with a facial cutaneous lesion who had come to live in Crete early 2008. The same zymodeme variant was isolated from a local dog that had never travelled outside the island, with symptoms of visceral leishmaniasis, which stayed in the area where the patient worked during the summer months. This is the first record of L. tropica in a host, other than human, in Greece and another example of introduction of a vector borne pathogen in a focus where local vector/s can sustain it, with the risk of initiation of new transmission cycle/s.

  6. Mateo López y la planta de la iglesia monástica de San Martín Pinario de Santiago

    Directory of Open Access Journals (Sweden)

    Vicente López, Simón

    2016-03-01

    Full Text Available An in depth study of the plan of the church of San Martín Pinario in Santiago de Compostela, attributed to the Portuguese architect Mateo López, according to the Catholic Reformation doctrines concerning the Eucharist.Se profundiza en la lectura de la planta de la iglesia monástica San Martín Pinario de Santiago, atribuida al arquitecto portugués Mateo López, de acuerdo con las consignas de la Reforma Católica en torno a la Eucaristía.

  7. Recent changes in a flickering variability of the black hole X-ray transient V616 Mon = A0620-00

    CERN Document Server

    Shugarov, S; Chochol, D; Gladilina, N; Kalinicheva, E; Dodin, A

    2016-01-01

    V616 Mon = A0620-00 is a prototype of black hole transient X-ray binaries. Our 2003-16 optical photometry of the object during X-ray quiescence, obtained by 50-250 cm telescopes in Crimea, Caucasus Mountains and Slovakia, consists of ~ 7660 CCD frames in Johnson-Cousins $V,R,R_C,I$ bands and the integral light. During 2003, 2008-9 and 2015-16 passive states, the phase light curve of the binary exhibited mainly variations caused by an ellipsoidal shape of the red dwarf component. During 2004-6 and 2009-14 active states a significant aperiodic broad-band variability (flickering) was present, arising in a black hole accretion disk and a bright spot, where the mass transfer stream hits the outer edge of the disk. Long term photometry of our minima times, together with available positions of superior conjunctions of the red dwarf found from spectroscopy, allowed us to refine the orbital period of V616 Mon to 0.32301407(5) days.

  8. Recent changes in a flickering variability of the black hole X-ray transient V616 Mon=A0620-00

    Science.gov (United States)

    Shugarov, S.; Katysheva, N.; Chochol, D.; Gladilina, N.; Kalinicheva, E.; Dodin, A.

    2016-11-01

    V616 Mon = A0620-00 is a prototype of black hole transient X-ray binaries. Our 2003-16 optical photometry of the object during X-ray quiescence, obtained by 50-250 cm telescopes in Crimea, Caucasus Mountains and Slovakia, consists of ˜ 7660 CCD frames in Johnson-Cousins V, R, RC, I bands and the integral light. During 2003, 2008-9 and 2015-16 passive states, the phase light curve of the binary exhibited mainly variations caused by an ellipsoidal shape of the red dwarf component. During 2004-6 and 2009-14 active states a significant aperiodic broad-band variability (flickering) was present, arising in a black hole accretion disk and a bright spot, where the mass transfer stream hits the outer edge of the disk. Long term photometry of our minima times, together with available positions of superior conjunctions of the red dwarf found from spectroscopy, allowed us to refine the orbital period of V616 Mon to 0.32301407(5) days.

  9. One-year oral toxicity study on a genetically modified maize MON810 variety in Wistar Han RCC rats (EU 7th Framework Programme project GRACE).

    Science.gov (United States)

    Zeljenková, Dagmar; Aláčová, Radka; Ondrejková, Júlia; Ambrušová, Katarína; Bartušová, Mária; Kebis, Anton; Kovrižnych, Jevgenij; Rollerová, Eva; Szabová, Elena; Wimmerová, Soňa; Černák, Martin; Krivošíková, Zora; Kuricová, Miroslava; Líšková, Aurélia; Spustová, Viera; Tulinská, Jana; Levkut, Mikuláš; Révajová, Viera; Ševčíková, Zuzana; Schmidt, Kerstin; Schmidtke, Jörg; Schmidt, Paul; La Paz, Jose Luis; Corujo, Maria; Pla, Maria; Kleter, Gijs A; Kok, Esther J; Sharbati, Jutta; Bohmer, Marc; Bohmer, Nils; Einspanier, Ralf; Adel-Patient, Karine; Spök, Armin; Pöting, Annette; Kohl, Christian; Wilhelm, Ralf; Schiemann, Joachim; Steinberg, Pablo

    2016-10-01

    The GRACE (GMO Risk Assessment and Communication of Evidence; www.grace-fp7.eu ) project was funded by the European Commission within the 7th Framework Programme. A key objective of GRACE was to conduct 90-day animal feeding trials, animal studies with an extended time frame as well as analytical, in vitro and in silico studies on genetically modified (GM) maize in order to comparatively evaluate their use in GM plant risk assessment. In the present study, the results of a 1-year feeding trial with a GM maize MON810 variety, its near-isogenic non-GM comparator and an additional conventional maize variety are presented. The feeding trials were performed by taking into account the guidance for such studies published by the EFSA Scientific Committee in 2011 and the OECD Test Guideline 452. The results obtained show that the MON810 maize at a level of up to 33 % in the diet did not induce adverse effects in male and female Wistar Han RCC rats after a chronic exposure.

  10. Early-type stars in the young open cluster NGC 2244 and in the Mon OB2 association I. The multiplicity of O-type stars

    CERN Document Server

    Mahy, L; Rauw, G; Gosset, E; De Becker, M; Sana, H; Eenens, P

    2009-01-01

    Aims. We present the results obtained from a long-term spectroscopic campaign devoted to the multiplicity of O-type stars in the young open cluster NGC2244 and in the Mon OB2 association. Methods. Our spectroscopic monitoring was performed over several years, allowing us to probe different time-scales. For each star, several spectral diagnostic tools are applied, in order to search for line shifts and profile variations. We also measure the projected rotational velocity and revisit the spectral classification. Results. In our sample, several stars were previously considered as spectroscopic binaries, though only a few scattered observations were available. Our results now reveal a more complex situation. Our study identifies two new spectroscopic binaries (HD46149 in NGC2244 and HD46573 in MonOB2). The first object is a long-period double-lined spectroscopic binary, though the exact value of its period remains uncertain and the second object is classified as an SB1 system with a period of about 10.67 days but...

  11. A Mid-Infrared Spitzer Study of the Herbig Be Star R Mon and the Associated HH 39 Herbig-Haro Object

    CERN Document Server

    Audard, M; Güdel, M; Lanz, T; Paerels, F; Arce, H

    2007-01-01

    We report on initial results of our Spitzer Cycle 2 program to observe the young massive star R Mon and its associated HH 39 Herbig-Haro object in the mid-infrared. Our program used all instruments on-board Spitzer to obtain deep images with IRAC of the HH 39 complex and of R Mon and its surroundings, a deep image of HH 39 at 24 and 70 $\\mu$m with MIPS, and mid-infrared spectra with the SH, LH, and LL modules of IRS. The aim of this program is to study the physical links in a young massive star between accretion disk, outflows and jets, and sh ocks in the associated HH object. Our preliminary analysis reveals that several knots of HH 39 are clearly detected in most IRAC bands. In IRAC4 (8 $\\mu$m), diffuse emission, probably from PAHs, appears as foreground emission covering the HH 39 emission. The HH 39 knots are detected at 24 microns, despite the fact that dust continuum emission covers the knots and shows the same structure as observed with IRAC4. The IRS spectra of HH 39 show weak evidence of [Ne II] 12.8...

  12. Scientific Opinion on an application (EFSA-GMO-NL-2009-70 for the placing on the market of genetically modified drought tolerant maize MON 87460 for food and feed uses, import and processing under Regulation (EC No 1829/2003 from Monsanto

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2012-11-01

    Full Text Available Maize MON 87460 was developed through Agrobacterium-mediated transformation and expresses the cold shock protein B (CspB from Bacillus subtilis and neomycin phosphotransferase II (NPTII from Escherichia coli to reduce yield loss under water-limited conditions. Maize MON 87460 contains a single copy of the cspB and nptII expression cassettes. Bioinformatic analysis of the flanking sequences and the open reading frames spanning the junctions created by the transformation did not raise safety issues. Comparative analyses established that, besides the expression of the CspB and NPTII proteins, some differences were observed in the composition of forage and grain produced from maize MON 87460 compared with its conventional counterpart, when grown under well-watered conditions. Given the magnitude of these changes and the characteristics of these endpoints, the EFSA GMO Panel concluded that the observed differences do not raise safety concerns for humans and animals. Under stressful conditions, maize MON 87460 can show enhanced agronomic performance characteristics and some differences in chemical composition in comparison with its conventional counterpart. Given the intended trait, the observed differences were not unexpected, and did indicate no safety concerns. The safety assessment identified no concerns regarding the potential toxicity and allergenicity of the CspB and NPTII proteins, or of maize MON 87460. Maize MON 87460 is as nutritious as any other maize and can be used in the same way. In cases of spillage, there are no indications of increased likelihood of the establishment or survival of feral maize plants MON 87460. Risks associated with a theoretically possible horizontal gene transfer from maize MON 87460 to bacteria have been analysed in detail, including different scenarios of integration, and did not raise safety concerns for the intended uses of maize MON 87460. The post-market environmental monitoring plan and reporting intervals

  13. Assessment of the quality of orbital energies in resolution-of-the-identity Hartree-Fock calculations using deMon auxiliary basis sets

    Science.gov (United States)

    Hamel, Sébastien; Casida, Mark E.; Salahub, Dennis R.

    2001-05-01

    The Roothaan-Hartree-Fock (HF) method has been implemented in deMon-DynaRho within the resolution-of-the-identity (RI) auxiliary-function approximation. While previous studies have focused primarily upon the effect of the RI approximation on total energies, very little information has been available regarding the effect of the RI approximation on orbital energies, even though orbital energies play a central role in many theories of ionization and excitation. We fill this gap by testing the accuracy of the RI approximation against non-RI-HF calculations using the same basis sets, for the occupied orbital energies and an equal number of unoccupied orbital energies of five small molecules, namely CO, N2, CH2O, C2H4, and pyridine (in total 102 orbitals). These molecules have well-characterized excited states and so are commonly used to test and validate molecular excitation spectra computations. Of the deMon auxiliary basis sets tested, the best results are obtained with the (44) auxiliary basis sets, yielding orbital energies to within 0.05 eV, which is adequate for analyzing typical low resolution polyatomic molecule ionization and excitation spectra. Interestingly, we find that the error in orbital energies due to the RI approximation does not seem to increase with the number of electrons. The absolute RI error in the orbital energies is also roughly related to their absolute magnitude, being larger for the core orbitals where the magnitude of orbital energy is large and smallest where the molecular orbital energy is smallest. Two further approximations were also considered, namely uniterated ("zero-order") and single-iteration ("first-order") calculations of orbital energies beginning with a local density approximation initial guess. We find that zero- and first-order orbital energies are very similar for occupied but not for unoccupied orbitals, and that the first-order orbital energies are fairly close to the corresponding fully converged values. Typical root

  14. Efeitos da temperatura e do tipo de iniciador na redução do teor de monômero residual durante reações de copolimerização em emulsão

    Directory of Open Access Journals (Sweden)

    Hirota Wilson H.

    2004-01-01

    Full Text Available Reduzir o teor de monômero residual é uma preocupação de qualquer produtor de polímeros, pois produtos sem, ou com teores muito baixos de monômero residual, apresentam um apelo comercial diferenciado. Neste trabalho são apresentadas e testadas experimentalmente diversas estratégias para reduzir o teor de monômero residual de copolímeros estireno/acrilato de butila produzidos em reações semicontínuas de polimerização em emulsão, que são amplamente utilizados nas indústrias de papel e tintas. Estas estratégias envolvem a adição contínua de iniciador e/ou o aumento da temperatura do reator durante a última etapa da reação, além da adição de um agente redutor e/ou de um iniciador solúvel na fase orgânica. Verificou-se que a combinação adequada de diferentes técnicas pode levar a uma redução significativa no teor residual de monômeros no látex.

  15. Full-Length Genome Analyses of Two New Simian Immunodeficiency Virus (SIV Strains from Mustached Monkeys (C. Cephus in Gabon Illustrate a Complex Evolutionary History among the SIVmus/mon/gsn Lineage

    Directory of Open Access Journals (Sweden)

    Florian Liégeois

    2014-07-01

    Full Text Available The Simian Immunodeficiency Virus (SIV mus/mon/gsn lineage is a descendant of one of the precursor viruses to the HIV-1/SIVcpz/gor viral lineage. SIVmus and SIVgsn were sequenced from mustached and greater spot nosed monkeys in Cameroon and SIVmon from mona monkeys in Cameroon and Nigeria. In order to further document the genetic diversity of SIVmus, we analyzed two full-length genomes of new strains identified in Gabon. The whole genomes obtained showed the expected reading frames for gag, pol, vif, vpr, tat, rev, env, nef, and also for a vpu gene. Analyses showed that the Gabonese SIVmus strains were closely related and formed a monophyletic clade within the SIVmus/mon/gsn lineage. Nonetheless, within this lineage, the position of both new SIVmus differed according to the gene analyzed. In pol and nef gene, phylogenetic topologies suggested different evolutions for each of the two new SIVmus strains whereas in the other nucleic fragments studied, their positions fluctuated between SIVmon, SIVmus-1, and SIVgsn. In addition, in C1 domain of env, we identified an insertion of seven amino acids characteristic for the SIVmus/mon/gsn and HIV‑1/SIVcpz/SIVgor lineages. Our results show a high genetic diversity of SIVmus in mustached monkeys and suggest cross-species transmission events and recombination within SIVmus/mon/gsn lineage. Additionally, in Central Africa, hunters continue to be exposed to these simian viruses, and this represents a potential threat to humans.

  16. Report of an Expert Panel on the reanalysis by of a 90-day study conducted by Monsanto in support of the safety of a genetically modified corn variety (MON 863).

    Science.gov (United States)

    Doull, J; Gaylor, D; Greim, H A; Lovell, D P; Lynch, B; Munro, I C

    2007-11-01

    MON 863, a genetically engineered corn variety that contains the gene for modified Bacillus thuringiensis Cry3Bb1 protein to protect against corn rootworm, was tested in a 90-day toxicity study as part of the process to gain regulatory approval. This study was reanalyzed by Séralini et al. who contended that the study showed possible hepatorenal effects of MON 863. An Expert Panel was convened to assess the original study results as analyzed by the Monsanto Company and the reanalysis conducted by Séralini et al. The Expert Panel concludes that the Séralini et al. reanalysis provided no evidence to indicate that MON 863 was associated with adverse effects in the 90-day rat study. In each case, statistical findings reported by both Monsanto and Séralini et al. were considered to be unrelated to treatment or of no biological or clinical importance because they failed to demonstrate a dose-response relationship, reproducibility over time, association with other relevant changes (e.g., histopathology), occurrence in both sexes, difference outside the normal range of variation, or biological plausibility with respect to cause-and-effect. The Séralini et al. reanalysis does not advance any new scientific data to indicate that MON 863 caused adverse effects in the 90-day rat study.

  17. Full-length genome analyses of two new simian immunodeficiency virus (SIV) strains from mustached monkeys (C. Cephus) in Gabon illustrate a complex evolutionary history among the SIVmus/mon/gsn lineage.

    Science.gov (United States)

    Liégeois, Florian; Schmidt, Fabian; Boué, Vanina; Butel, Christelle; Mouacha, Fatima; Ngari, Paul; Ondo, Bertrand Mve; Leroy, Eric; Heeney, Jonathan L; Delaporte, Eric; Peeters, Martine; Rouet, François

    2014-07-22

    The Simian Immunodeficiency Virus (SIV) mus/mon/gsn lineage is a descendant of one of the precursor viruses to the HIV-1/SIVcpz/gor viral lineage. SIVmus and SIVgsn were sequenced from mustached and greater spot nosed monkeys in Cameroon and SIVmon from mona monkeys in Cameroon and Nigeria. In order to further document the genetic diversity of SIVmus, we analyzed two full-length genomes of new strains identified in Gabon. The whole genomes obtained showed the expected reading frames for gag, pol, vif, vpr, tat, rev, env, nef, and also for a vpu gene. Analyses showed that the Gabonese SIVmus strains were closely related and formed a monophyletic clade within the SIVmus/mon/gsn lineage. Nonetheless, within this lineage, the position of both new SIVmus differed according to the gene analyzed. In pol and nef gene, phylogenetic topologies suggested different evolutions for each of the two new SIVmus strains whereas in the other nucleic fragments studied, their positions fluctuated between SIVmon, SIVmus-1, and SIVgsn. In addition, in C1 domain of env, we identified an insertion of seven amino acids characteristic for the SIVmus/mon/gsn and HIV‑1/SIVcpz/SIVgor lineages. Our results show a high genetic diversity of SIVmus in mustached monkeys and suggest cross-species transmission events and recombination within SIVmus/mon/gsn lineage. Additionally, in Central Africa, hunters continue to be exposed to these simian viruses, and this represents a potential threat to humans.

  18. Statement on a request from the European Commission related to the emergency measure notified by Greece on genetically modified maize MON 810 according to Article 18 of Directive 2002/53/EC

    Directory of Open Access Journals (Sweden)

    European Food Safety Authority

    2014-06-01

    Full Text Available Following a request of the European Commission, the European Food Safety Authority (EFSA evaluated the documentation submitted by Greece in support of its request for the prohibition of the placing on the market of the genetically modified maize MON 810 for cultivation according to Article 18 of Directive 2002/53/EC. All concerns on the safety of maize MON 810 related to human and animal health or the environment raised by Greece were already addressed in previous outputs of the EFSA or its GMO Panel on maize MON 810 or related Bt maize events expressing Cry1Ab protein. The concern pertaining to co-existence was not considered as this is not in the remit of EFSA. Therefore, EFSA concludes that, based on the documentation submitted by Greece, there is no specific scientific evidence, in terms of risk to human and animal health or the environment, that would support the notification of an emergency measure under Article 18 of Directive 2002/53/EC and that would invalidate the previous EFSA GMO Panel risk assessments of maize MON 810.

  19. Loss of residual monomer from resilient lining materials processed by different methods = Perda de monômero residual de reembasadores resilientes processados por diferentes métodos

    Directory of Open Access Journals (Sweden)

    León, Blanca Liliana Torres

    2008-01-01

    Full Text Available Objetivo: Avaliar o monômero residual liberado de materiais resilientes para reembasamento polimerizados por diferentes métodos. Metodologia: Dois materiais foram testados: Ever-Soft polymerizado por banho quente de água ou por energia de microondas, e Light Liner polimerizado quimicamente e por luz visível (polimerização dual. O monômero residual liberado foi mensurado em 12 espécimes (40x10x0,3mm fabricados com cada material e método de polimerização. Os espécimes foram armazenados em água destilada por 168 horas a 37ºC, e analisados diariamente por espectrometria ultravioleta (Light Liner: 204nm, Ever-Soft: 206nm. Os dados foram analisados por ANOVA de fator único e teste de Bonferroni (a=0,05. O monômero residual liberado em relação ao tempo foi determinado por análise de regressão polinomial. Resultados: O monômero residual liberado em 168 horas do teste (µg/cm2 em espécimes polimerizados por banho de água quente (0,27±0,01µg/cm2 foi significativamente maior (P < 0,05 que em espécimes processados por energia de microondas (0,25±0,02µg/cm2. Ever-Soft mostrou uma redução na liberação de monomer residual com o tempo, tendendo a se estabilizar em 96 horas. Light Liner continuou a liberar monômero com o tempo. Conclusão: Ever-Soft pode ser polimerizado por energia de microondas. Os valores de monômero residual liberado foram baixos, e os níveis de monômero diminuíram com o tempo

  20. Parole et silence pour l’expression de l’éthique dans La mort est mon métier de Robert Merle

    Directory of Open Access Journals (Sweden)

    María Badiola Dorronsoro

    2015-11-01

    Full Text Available Thanks to a daring and original exercise of focusing the narrative in first person, Robert Merle makes a historical Nazi the hero and narrator of his novel La mort est mon métier. Adding to this fact a careful choice of what is said and what is omitted, the author shows that the “final solution to the Jewish problem” by Hitler was not a massacre organized by some bloodthirsty or revengeful individuals, but a «hard task» accomplished by a group of de¬humanized beings for whom the honor –and morals– consisted of total dedication to blind obe¬dience to their superiors.

  1. Determinação espectrofotométrica da caboxiemoglobinemia em indivíduos expostos ocupacionalmente ao monóxido de carbono

    OpenAIRE

    Ana Cristina Calhabeutt Gabriel da Costa Malheiro

    1991-01-01

    O monóxido de carbono (CO) constitui sério risco à saúde de indivíduos expostos a este gás. Os efeitos nocivos aparecem como conseqüência de sua combinação com a hemoglobina formando a carboxiemoglobina(COHb). A avaliação da exposição ao CO pela monitorização biológica é realizada, preferencialmente, pela determinação da carboxiemoglobinemia. O método espectrofotométrico proposto, para a determinação de COHb, utiliza a leitura na região Soret (420 e 432 nm) e fatores de calibração do espectro...

  2. Criação de vilas em Minas Gerais no início do regime monárquico: a região Norte

    Directory of Open Access Journals (Sweden)

    Edneila Rodrigues Chaves

    2013-12-01

    Full Text Available A criação de vilas em Minas Gerais no início do regime monárquico atendeu a demanda antiga por divisão administrativa do território. Demonstra-se Minas Gerais regionalizada, destacando a criação de vilas na região Norte. As petições para esse fim eram comuns a outras províncias do Brasil e tinham fundamentação semelhante. Mas, a Assembleia Geral somente tratou do assunto a partir de 1831 em consonância com a questão fiscal, de interesse do governo central e das províncias que se impôs na agenda política a partir de então.

  3. Resistance of Bt-maize (MON810) against the stem borers Busseola fusca (Fuller) and Chilo partellus (Swinhoe) and its yield performance in Kenya.

    Science.gov (United States)

    Tefera, Tadele; Mugo, Stephen; Mwimali, Murenga; Anani, Bruce; Tende, Regina; Beyene, Yoseph; Gichuki, Simon; Oikeh, Sylvester O; Nang'ayo, Francis; Okeno, James; Njeru, Evans; Pillay, Kiru; Meisel, Barbara; Prasanna, B M

    2016-11-01

    A study was conducted to assess the performance of maize hybrids with Bt event MON810 (Bt-hybrids) against the maize stem borer Busseola fusca (Fuller) in a biosafety greenhouse (BGH) and against the spotted stem borer Chilo partellus (Swinhoe) under confined field trials (CFT) in Kenya for three seasons during 2013-2014. The study comprised 14 non-commercialized hybrids (seven pairs of near-isogenic Bt and non-Bt hybrids) and four non-Bt commercial hybrids. Each plant was artificially infested twice with 10 first instar larvae. In CFT, plants were infested with C. partellus 14 and 24 days after planting; in BGH, plants were infested with B. fusca 21 and 31 days after planting. In CFT, the seven Bt hybrids significantly differed from their non-Bt counterparts for leaf damage, number of exit holes, percent tunnel length, and grain yield. When averaged over three seasons, Bt-hybrids gave the highest grain yield (9.7 t ha(-1)), followed by non-Bt hybrids (6.9 t ha(-1)) and commercial checks (6 t ha(-1)). Bt-hybrids had the least number of exit holes and percent tunnel length in all the seasons as compared to the non-Bt hybrids and commercial checks. In BGH trials, Bt-hybrids consistently suffered less leaf damage than their non-Bt near isolines. The study demonstrated that MON810 was effective in controlling B. fusca and C. partellus. Bt-maize, therefore, has great potential to reduce the risk of maize grain losses in Africa due to stem borers, and will enable the smallholder farmers to produce high-quality grain with increased yield, reduced insecticide inputs, and improved food security.

  4. "I Wanna Be the Very Best!" Agreeableness and Perseverance Predict Sustained Playing to Pokémon Go: A Longitudinal Study.

    Science.gov (United States)

    Lalot, Fanny; Zerhouni, Oulmann; Pinelli, Mathieu

    2017-06-29

    The smartphone game Pokémon Go™ has attracted much scientific attention regarding its potential health-related outcomes. Most studies, however, limited their investigation to short-term outcomes. The aim of the present study is to investigate the role of personality traits in predicting sustained playing to the game on a 6-month period as well as related health outcomes in terms of distance walked per day. Pokémon Go players from 10 countries were recruited through social media and answered an online questionnaire. At Phase I (August 2016), 402 participants provided their game statistics and filled an extensive personality inventory (six main personality traits, impulsivity, need for cognition, need for closure, competitiveness, and self-efficacy). At Phase II (December 2016), 151 participants indicated whether they were still playing or not and provided updated game statistics. No personality traits predicted the distance walked by the players. However, the probability of still being playing the game at Phase II was positively predicted by three personality traits: agreeableness, perseverance, and premeditation. Distance walked per day significantly decreased between Phases I and II but remained substantial. This study identified three personality traits that predicted sustained playing and thus potentially higher game-related physical activity in the long run. In comparison with prior work, this study goes a step forward by (i) investigating personality traits underlying use of the game and related health outcomes, and (ii) providing longitudinal data concerning the use of the game. Findings open new perspectives for the development of other exergames.

  5. Massive star mergers and the recent transient in NGC 4490: a more massive cousin of V838 Mon and V1309 Sco

    Science.gov (United States)

    Smith, Nathan; Andrews, Jennifer E.; Van Dyk, Schuyler D.; Mauerhan, Jon C.; Kasliwal, Mansi M.; Bond, Howard E.; Filippenko, Alexei V.; Clubb, Kelsey I.; Graham, Melissa L.; Perley, Daniel A.; Jencson, Jacob; Bally, John; Ubeda, Leonardo; Sabbi, Elena

    2016-05-01

    The Galactic transient V1309 Sco was the result of a merger in a low-mass star system, while V838 Mon was thought to be a similar merger event from a more massive B-type progenitor. In this paper, we study a recent optical and infrared (IR) transient discovered in the nearby galaxy NGC 4490 named NGC 4490-OT2011 (NGC 4490-OT hereafter), which appeared similar to these merger events (unobscured progenitor, irregular multi-peaked light curve, increasingly red colour, similar optical spectrum, IR excess at late times), but which had a higher peak luminosity and longer duration in outburst. NGC 4490-OT has less in common with the class of SN 2008S-like transients. A progenitor detected in pre-eruption Hubble Space Telescope (HST) images, combined with upper limits in the IR, requires a luminous and blue progenitor that has faded in late-time HST images. The same source was detected by Spitzer and ground-based data as a luminous IR (2-5 μm) transient, indicating a transition to a self-obscured state qualitatively similar to the evolution seen in other stellar mergers and in luminous blue variables. The post-outburst dust-obscured source is too luminous and too warm at late times to be explained with an IR echo, suggesting that the object survived the event. The luminosity of the enshrouded IR source is similar to that of the progenitor. Compared to proposed merger events, the more massive progenitor of NGC 4490-OT seems to extend a correlation between stellar mass and peak luminosity, and may suggest that both of these correlate with duration. We show that spectra of NGC 4490-OT and V838 Mon also resemble light-echo spectra of η Car, prompting us to speculate that η Car may be an extreme extension of this phenomenon.

  6. Fagocitose intensificada de Corynebacterium pseudotuberculosis por células da série monócito-macrófago de caprinos naturalmente infectados pelo vírus da artrite encefalite

    Directory of Open Access Journals (Sweden)

    Bárbara G.S. Sanches

    2012-12-01

    Full Text Available A Artrite Encefalite Caprina (AEC e a Linfadenite Caseosa (LC possuem alta incidência e transmissibilidade em pequenos ruminantes. Como ambas possuem tropismo por monócitos-macrófagos e afetam mecanismos da resposta inata do hospedeiro, acredita-se que a AEC predispõe o animal a infecções por Corynebacteruim pseudotuberculosis, agente etiológico da LC. Para confirmar esta hipótese, avaliou-se a fagocitose de células da série monócito-macrófago de cabras naturalmente infectadas pelo vírus da AEC (VAEC. Para tanto, foram utilizadas 30 cabras da raça Saanen, alocadas em dois grupos distintos, com 15 animais cada, conforme a sororreatividade de anticorpos séricos antivírus da AEC. Células mononucleares de sangue periférico foram isoladas por gradiente de densidade e plaqueadas para isolamento de células da série monócito-macrófago. Posteriormente, o ensaio de fagocitose de C. pseudotuberculosis foi realizado, após incubação por duas horas a 37ºC a 5% de CO2, e a visualização da fagocitose foi identificada por microscopia óptica. O presente estudo não encontrou diferença na porcentagem de monócito-macrófagos que realizaram fagocitose entre os diferentes grupos (P = 0,41. Todavia, a análise quantitativa de bactérias fagocitadas, demonstrou maior capacidade fagocítica pelos macrófagos-monócitos do grupo sororreagente ao vírus da AEC. Correlação entre monócitos fagocitando e macrófagos que fagocitaram mais de 12 bactérias foi observado neste grupo (r = 0,488; P = 0,006, não sendo o mesmo encontrado no grupo de animais sorroreagentes negativos. Os dados demonstram aumento na intensidade da fagocitose de macrófagos de animais infectados com o vírus da AEC.

  7. Raven and the Center of Maffei 1: Multi-Object Adaptive Optics Observations of the Center of a Nearby Elliptical Galaxy and the Detection of an Intermediate Age Population

    CERN Document Server

    Davidge, T J; Lardiere, O; Bradley, C; Blain, C; Oya, S; Akiyama, M; Ono, Y H

    2015-01-01

    Near-infrared (NIR) spectra that have an angular resolution of ~ 0.15 arcsec are used to examine the stellar content of the central regions of the nearby elliptical galaxy Maffei 1. The spectra were recorded at the Subaru Telescope, with wavefront distortions corrected by the RAVEN Multi-Object Adaptive Optics science demonstrator. The Ballick-Ramsey C_2 absorption bandhead near 1.76 microns is detected, and models in which 10 - 20% of the light near 1.8 microns originates from stars of spectral type C5 reproduce this feature. Archival NIR and mid-infrared images are also used to probe the structural and photometric properties of the galaxy. Comparisons with models suggest that an intermediate age population dominates the spectral energy distribution between 1 and 5 microns near the galaxy center. This is consistent not only with the presence of C stars, but also with the large HBeta index that has been measured previously for Maffei 1. The J-K color is more-or-less constant within 15 arcsec of the galaxy cen...

  8. Upgrades of the RadMon V6 and its Integration on a Nanosatellite for the Analysis and the Comparative Study of the CHARM and Low Earth Orbit Environments

    CERN Document Server

    AUTHOR|(CDS)2080738; PERONNARD Paul, CERN

    Radiation fields in the CERN accelerator complex are characterized by mixed particles with broad energy ranges. A Radiation Monitoring System, called "RadMon", was developed for the distributed, on-line measurement of the complex radiation fields and their effect on the electronics installed in areas with a harsh radiation environment. The most recent version of the RadMon revealed a critical issue soon after deployment in the tunnel and the experimental areas. Multiple Cell Upsets (MCUs) arising from microlatchup events started showing up on the SRAM-based particle flux sensors equipped by the system, ultimately affecting the measurement and resulting in corrupted data and accuracy losses. A study of the generation of this effect was performed, and a solution using an on-line detection and correction algorithm embedded on an FPGA, was evaluated and implemented on the RadMon device. Furthermore, in the framework of the project CELESTA, a feasibility study was carried out to validate the adaptation of the RadM...

  9. Økologisk risikovurdering af en genmo-dificeret glyfosat-tolerant raps MON 88302 i anmeldelse til godkendelse vedr. import til markedsføring under Forordning 1829/2003/EF

    DEFF Research Database (Denmark)

    Kjellsson, Gøsta; Sørensen, Jesper Givskov; Strandberg, Morten Tune

    2012-01-01

    to be small. Fur-thermore, there are methods to monitor such dispersal of the GMO-plant into cultivated fields and surroundings. Although, not directly an environmental issue, we find that dispersal of the MON 88302 oilseed rape could result in problems for co-existence with non-GMO-cultivation....... import til foder og fødevarer for human konsumtion. DCE, Bioscience anser det for sandsynligt at MON 88302-rapsen og dens gener kan blive spredt utilsigtet i forbindelse med uheld med iblanding i konventionel raps ved fx håndtering under import, lagring og transport. Spredningen forventes dog at kunne......, at der ikke kan forventes væsentlige uønskede økologiske konsekvenser for miljøet samt dyre- og plantelivet ved markedsføring af MON 88302-rapsen når den kun godkendes til import til foder og fødevareanvendelse. Der findes desuden metoder til at overvåge en eventuel utilsigtet spredning via frøspild...

  10. Scientific Opinion on a request from the European Commission related to the emergency measure notified by Luxembourg on genetically modified maize MON 810 according to Article 34 of Regulation (EC No 1829/2003

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2013-09-01

    Full Text Available Following a request of the European Commission, the European Food Safety Authority’s Panel on Genetically Modified Organisms (EFSA GMO Panel evaluated the documentation submitted by Luxembourg in support of its request for the prohibition of the placing on the market of the genetically modified maize MON 810 according to Article 34 of Regulation (EC No 1829/2003. All concerns related to human and animal health or the environment raised by Luxembourg were already addressed in previous scientific opinions of the EFSA GMO Panel on maize MON 810 while other concerns relate to socio-economic aspects and co-existence and thus fall outside the remit of EFSA. Therefore, the EFSA GMO Panel concludes that, based on the documentation submitted by Luxembourg, there is no specific scientific evidence, in terms of risk to human and animal health or the environment, that would support the notification of an emergency measure under Article 34 of Regulation (EC No 1829/2003 and that would invalidate its previous risk assessments of maize MON 810.

  11. Statement complementing the EFSA opinion on application EFSA GMO UK 2007 41 (cotton MON 88913 for food and feed uses, import and processing taking into consideration updated bioinformatic analyses

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2014-03-01

    Full Text Available In this statement, the EFSA GMO Panel responds to a request from the European Commission (EC to complement its partially inconclusive scientific opinion on cotton MON 88913 taking into consideration updated bioinformatic analyses submitted by the applicant after the adoption. Similarity searches assessed the identity of the genomic sequences flanking the MON 88913 insert, the potential of creating open reading frames (ORFs showing similarity to known allergens or toxins and the similarity of the newly expressed CP4 EPSPS protein to known allergens or toxins. Having assessed these searches, the EFSA GMO Panel did not identify interruptions of known cotton genes or any safety issue arising from the identified ORFs including the newly expressed CP4 EPSPS protein. In conclusion, the EFSA GMO Panel considers that cotton MON 88913, as assessed in the scientific opinion on application EFSA-GMO-UK-2007-41 and in the supplementary bioinformatic dataset, is as safe and nutritious as its conventional counterpart and commercial cotton varieties with respect to potential effects on human and animal health and the environment in the context of its intended uses.

  12. Scientific Opinion on a request from the European Commission related to the emergency measure notified by Italy on genetically modified maize MON 810 according to Article 34 of Regulation (EC No 1829/2003

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2013-09-01

    Full Text Available Following a request of the European Commission, the European Food Safety Authority’s Panel on Genetically Modified Organisms (EFSA GMO Panel evaluated the documentation submitted by Italy in support of its request for the prohibition of the placing on the market of the genetically modified maize MON 810 according to Article 34 of Regulation (EC No 1829/2003. All concerns related to human and animal health or the environment raised by Italy were already addressed in previous scientific opinions of the EFSA GMO Panel on maize MON 810 while other concerns relate to co-existence and thus fall outside the remit of EFSA. Therefore, the EFSA GMO Panel concludes that, based on the documentation submitted by Italy, there is no specific scientific evidence, in terms of risk to human and animal health or the environment, that would support the notification of an emergency measure under Article 34 of Regulation (EC No 1829/2003 and that would invalidate its previous risk assessments of maize MON 810.

  13. Oralité et figuration de la mémoire chez Césaire, Chamoiseau et Monénembo

    Directory of Open Access Journals (Sweden)

    Elizabeth Catherine Saint

    2013-05-01

    Full Text Available Représenter à l’écrit des récits issus de sociétés traditionnellement orales, telles que le sont les Antilles et l’Afrique, exige de l’écrivain francophone qu’il intègre une forte thématique de la parole et qu’il simule l’oralité, en recourant à une variété de stratégies stylistiques ou narratives. « Puisque l’écriture est un outil de séduction » (Descas 44, les marques de l’oralité ne sont pas gratuitement imposées au texte et elles jouent un rôle précis que nous tenterons de déterminer dans Cahier d’un retour au pays natal, d’Aimé Césaire, Chronique des sept misères, de Patrick Chamoiseau, et L’Aîné des orphelins de Tierno Monénembo. Nous montrons que l’oralité dans ces œuvres jouent le rôle commun de figuration de la mémoire.

  14. NICMOS/HST Observations of the Embedded Cluster Associated with Mon R2: Constraining the sub-stellar Initial Mass Function

    CERN Document Server

    Andersen, M; Oppenheimer, B; Dougados, C; Carpenter, J

    2006-01-01

    We have analyzed HST/NICMOS2 F110W, F160W, F165M, and F207M band images covering the central 1'x1' of the cluster associated with Mon R2 in order to constrain the Initial Mass Function (IMF) down to 20 Mjup. The flux ratio between the F165M and F160W bands was used to measure the strength of the water band absorption feature and select a sample of 12 out of the total sample of 181 objects that have effective temperatures between 2700 K and 3300 K. These objects are placed in the HR diagram together with sources observed by Carpenter et al. (1997) to estimate an age of ~1 Myr for the low mass cluster population. By constructing extinction limited samples, we are able to constrain the IMF and the fraction of stars with a circumstellar disk in a sample that is 90% complete for both high and low mass objects. For stars with estimated masses between 0.1 Msun and 1.0 Msun for a 1 Myr population with Av < 19 mag, we find that 27+-9% have a near-infrared excess indicative of a circumstellar disk. The derived fract...

  15. Sobre el «monólogo dramático» (Ilustración en el Poema conjetural de Borges

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    Zambra Infantas, Alejandro

    2005-12-01

    Full Text Available This article presents an analysis of Jorge Luis Borges' «Poema conjetural», emphasizing its relation to the type of texts that the critical tradition has denominated «dramatic monologues » —fundamentally from Robert Browning's innovations in the statute of the poetic person. In «Poema conjetural» we see a clear example of the problems associated to the simulation of the first person in the lyrical poem. From the analysis a few guidelines are proposed for reading any poem in which the self appears to be deliberately fictitious.Este artículo presenta un análisis de «Poema conjetural», de Jorge Luis Borges, que enfatiza su relación con el tipo de textos que la tradición crítica —a partir, fundamentalmente, de las innovaciones de Robert Browning en el estatuto del yo poético— denomina «monólogos dramáticos». «Poema conjetural» es un ejemplo privilegiado de los problemas asociados al fingimiento del yo en el poema lírico. Del análisis se deriva la proposición de algunas coordenadas de lectura válidas para cualquier poema en que el yo aparezca intencionado como ficticio.

  16. Massive-Star Mergers and the Recent Transient in NGC4490: A More Massive Cousin of V838 Mon and V1309 Sco

    CERN Document Server

    Smith, Nathan; Van Dyk, Schuyler D; Mauerhan, Jon C; Kasliwal, Mansi M; Bond, Howard E; Filippenko, Alexei V; Clubb, Kelsey I; Graham, Melissa L; Perley, Daniel A; Jencson, Jacob; Bally, John; Ubeda, Leonardo; Sabbi, Elena

    2016-01-01

    The Galactic transient V1309 Sco was the result of a merger in a low-mass star system, while V838 Mon was thought to be a similar merger event from a more massive B-type progenitor. In this paper we study an optical/IR transient discovered in the nearby galaxy NGC4490, which appeared similar to these merger events (unobscured progenitor, irregular multi-peaked light curve, increasingly red color, similar optical spectrum, IR excess at late times), but which had a higher peak luminosity and longer duration in outburst. NGC4490-OT has less in common with the class of SN~2008S-like transients. A progenitor detected in pre-eruption HST images, combined with upper limits in the IR, requires a luminous and blue progenitor that has faded in late-time HST images. The same source was detected by Spitzer and ground-based data as a luminous IR transient, indicating a transition to a self-obscured state qualitatively similar to the evolution seen in other stellar mergers and in LBVs. The post-outburst dust-obscured sourc...

  17. Algunas cuestiones epistemológicas a propósito de la teología monástica medieval en Jean Leclercq

    Directory of Open Access Journals (Sweden)

    Pedro Edmundo Gómez, osb

    2006-12-01

    Full Text Available Este artículo plantea cuatro cuestiones epistemológicas a propósito de la teología monástica medieval: existencia y significado, distinción de la escolástica, noción de ciencia y crítica neoescolástica, exponiendo reverentemente lo que Dom Jean Leclercq, osb. monje, historiador y teólogo, enseñó especialmente en L'amour des lettres et le désir de Dieu, que es a la vez el título y la conclusión de un hermoso libro publicado hace ya cincuenta años, mostrando la posible "complementariedad" y "coexistencia pacífica" entre modos diversos de hacer teologíaThis article outlines four epistemological questions apropos of medieval monastic theology: existence and meaning, the scholastic distinction, the notion of science and neo-scholastic criticism, expounding reverently what monk, historian and theologian Dom Jean Leclercq, o.s.b., taught, especially in L'amour des letters et le désir de Dieu, which is at the same time the title and the conclusion of a beautiful book published 50 years ago, showing the possible "complementarity" and "peaceful co-existence" between different modes of doing theology

  18. Spatial and Alignment Analyses for a Field of Small Volcanic Vents South of Pavonis Mons and Implications for the Tharsis Province, Mars

    Science.gov (United States)

    Bleacher, Jacob E.; Glaze, Lori S.; Greeley, Ronald; Hauber, Ernst; Baloga, Stephen; Sakimoto, Susan E. H.; Williams, David A.; Glotch, Timothy D.

    2009-01-01

    A field of small volcanic vents south of Pavonis Mons was mapped with each vent assigned a two-dimensional data point. Nearest neighbor and two-point azimuth analyses were applied to the resulting location data. Nearest neighbor results show that vents within this field are spatially random in a Poisson sense, suggesting that the vents formed independently of each other without sharing a centralized magma source at shallow depth. Two-point azimuth results show that the vents display north-trending alignment relationships between one another. This trend corresponds to the trends of faults and fractures of the Noachian-aged Claritas Fossae, which might extend into our study area buried beneath more recently emplaced lava flows. However, individual elongate vent summit structures do not consistently display the same trend. The development of the volcanic field appears to display tectonic control from buried Noachian-aged structural patterns on small, ascending magma bodies while the surface orientations of the linear vents might reflect different, younger tectonic patterns. These results suggest a complex interaction between magma ascension through the crust, and multiple, older, buried Tharsis-related tectonic structures.

  19. Nest occupation and prey grabbing by saker falcon (Falco cherrug on power lines in the province of Vojvodina (Serbia

    Directory of Open Access Journals (Sweden)

    Puzović S.

    2008-01-01

    Full Text Available Research on nest occupation and prey grabbing by saker falcon (Falco cherrug on power lines in Vojvodina (Serbia was done in the period from 1986 to 2004. During three specially analyzed periods, saker falcon took the nests of raven (Corvus corax in 91% of a total of 22 cases of nest occupation, and those of hooded crow (Corvus corone cornix in only 9%. Saker falcon regularly grabs prey from different birds that occasionally or constantly spend time around power lines [Kestrel (Falco tinnunculus, hobby (Falco subbuteo, hooded crow (Corvus corone cornix, jack-daw (Corvus monedula, marsh harrier (Circus aeruginosus, hen harrier (Circus cyaneus, buzzard (Buteo buteo, and raven (Corvus corax]. One year a studied pair of saker falcons on a power line in Donji Srem, Serbia grabbed prey from five different species of birds. Out of a total of 40 cases of prey grabbing in the period from January to December, as much 70% of the grabbed prey was taken from kestrel (Falco tinnunculus. During the winter and early spring, prey was grabbed predominantly by males; after May, prey was sometimes grabbed by females as well. Most of the grabbed prey was common vole (Microtus arvalis.

  20. Algunos aspectos del pontificado de Mons. Ilundain y Esteban en Ourense a la luz de los archivos vaticanos (1905-1921

    Directory of Open Access Journals (Sweden)

    Hernández Figueiredo, José Ramón

    2006-12-01

    Full Text Available Ourense in the early XX century, although being a mainly agricultural and traditional society, lives and participates in all the problems of the moment in the political, social and ecclesiastical levels. The diocesan Church lives the general worry of the Church with its position in the face of the liberal and modernist positions. The anticlericalism springs up by the minute and it is politically used in facts like the case of Oseira for attacking the Church in the person of the bishop. The previously unknown files of the Vatican offer valuable information for knowing the lights and shadows of the papacy of monseigneur Ilundain y Esteban. His reforming spirit of the priesthood and the churchgoers situates him as one of the big bishops of Ourense and one of the most complete and fine prelates in the whole of the Spanish episcopate of the first third of the XX century.

    Ourense en los inicios del siglo XX, aún siendo una sociedad eminentemente agraria y tradicional, vive y participa en todos los problemas del momento, a nivel social, político y eclesial. La Iglesia diocesana vive la preocupación general de la Iglesia con su posicionamiento ante las corrientes liberales y modernistas. El anticlericalismo brota por momentos y es aprovechado políticamente en hechos como el caso de Oseira, para atacar a la Iglesia en la persona del obispo. Los inéditos fondos vaticanos ofrecen valiosa información para conocer las luces y las sombras del pontificado de mons. Ilundain y Esteban. Su espíritu reformador del clero y de la grey lo sitúan como uno de los grandes obispos de Ourense y uno de los prelados más completos y cabales del conjunto del episcopado español del primer tercio del siglo XX.

  1. Influencia de la incorporación de un co-monómero alcalino e hidroxiapatita en las propiedades de cementos óseos acrílicos

    Directory of Open Access Journals (Sweden)

    Karen Lozano

    2013-01-01

    Full Text Available Se formularon cementos óseos acrílicos utilizando una relación sólido / líquido de 2. El componente líquido se basó en metacrilato de metilo (MMA, como monómero y dimetil-p-toluidina (2.5% como acelerador; a su vez, el componente sólido consistió en perlas de polimetacrilato de metilo (PMMA como carga, sulfato de bario como agente radiopaco y peróxido de benzoilo (2% como iniciador. Finalmente, una hidroxiapatita como carga bioactiva y un metacrilato de dimetil amino etilo (DMAEM como co-monómero alcalino, fueron incorporados en diferentes porcentajes (0-20% p/p, para el primero y 0-10% p/p, para el segundo. Como era de esperarse, las muestras elaboradas con las formulaciones de cementos óseos acrílicos sin modificar, presentaron calores de reacción elevados (>80ºC y una resistencia a la compresión (124.0 MPa por encima de lo especificado en la norma ISO 5833. Con la incorporación de la hidroxiapatita y el co-monómero alcalino, se presentaron bajas temperaturas de polimerización, bajos módulos y resistencias mecánicas, así como la fijación de una capa similar a la apatita biológica en la superficie del material después de su inmersión por 30 días en un fluido biológico simulado.

  2. Investigation of Segregated Business Ethics Elements Influence on Results of Service Enterprises Activity Verslo etikos elementų įtakos paslaugų įmonės veiklos rezultatams analizė

    Directory of Open Access Journals (Sweden)

    Kristina Luebcke

    2011-02-01

    .

    Verslo ir rinkodaros etikos problemas Lietuvoje nagrinėjo įvairūs autoriai. Nepaisant to, nėra vienos nuomonės dėl atskirų etikos elementų įtakos įmonės veiklos rezultatams. Šis tyrimas yra skirtas nustatyti, ar atskiri verslo etikos elementai daro įtaką paslaugų įmonės veiklos rezultatams. Buvo tikrinama prielaida, kad yra galimybė įvertinti atskirų etikos elementų įtakos dydį. Tyrimo metu nustatyta kad, verslo etikos normų laikymasis daro didelę įtaką įmonės veiklos rezultatams. Nustačius atskirų verslo etikos ir paslaugų įmonės veiklos rezultatų tarpusavio koreliacinį priklausomumą, išryškėjo didžiausia atskirų verslo etikos elementų įtaka atskiriems įmonės konkurencingumo elementams. Išanalizavus metinės paslaugų įmonių veiklos rezultatus, atspindėtus verslo masinėse informacijos priemonėse, nustatyta tiesioginė verslo etikos įtaka įmonės pelnui ir pardavimų rezultatams. Straipsnyje pateikiamas svarbiausių verslo etikos elementų įtakos paslaugų įmonės veiklos rezultatams modelis, kuris tinka visoms paslaugų sektoriaus įmonėms. Temos naujumas pasireiškia tuo, kad iki šiol nebuvo nustatyta tiesioginė verslo etikos įtaka įmonės pelnui ir pardavimų rezultatams.

  3. Stages of in vitro phagocytosis of Plasmodium falciparum-infected erythrocytes by human monocytes Estágios da fagocitose in vitro por monócitos humanos de eritrócitos infectados por Plasmodium falciparum

    Directory of Open Access Journals (Sweden)

    Maria Imaculada Muniz-Junqueira

    2009-04-01

    Full Text Available Monocytes/macrophages play a critical role in the defense mechanisms against malaria parasites, and are the main cells responsible for the elimination of malaria parasites from the blood circulation. We carried out a microscope-aided evaluation of the stages of in vitro phagocytosis of Plasmodium falciparum-infected erythrocytes, by human monocytes. These cells were obtained from healthy adult individuals by means of centrifugation through a cushion of Percoll density medium and were incubated with erythrocytes infected with Plasmodium falciparum that had previously been incubated with a pool of anti-plasmodial immune serum. We described the stages of phagocytosis, starting from adherence of infected erythrocytes to the phagocyte membrane and ending with their destruction within the phagolisosomes of the monocytes. We observed that the different erythrocytic forms of the parasite were ingested by monocytes, and that the process of phagocytosis may be completed in around 30 minutes. Furthermore, we showed that phagocytosis may occur continuously, such that different phases of the process were observed in the same phagocyte.Monócitos/macrófagos desempenham uma função crítica nos mecanismos de defesa antiplasmódio e constituem as principais células responsáveis pela eliminação das formas eritrocitárias do plasmódio da circulação sangüínea. Realizamos uma avaliação microscópica dos estágios da fagocitose in vitro de eritrócitos infectados por Plasmodium falciparum por monócitos humanos. Essas células foram obtidas de indivíduos adultos sadios por centrifugação em Percoll e incubadas com eritrócitos infectados por Plasmodium falciparum previamente incubados com um pool de soro imune contra plasmódio. Descrevemos os estágios da fagocitose, desde a aderência dos eritrócitos infectados até sua destruição nos fagolisossomas dos monócitos. Observou-se que eritrócitos infectados por todos os diferentes est

  4. From urban planning and emergency training to Pokémon Go: applications of virtual reality GIS (VRGIS) and augmented reality GIS (ARGIS) in personal, public and environmental health.

    Science.gov (United States)

    Kamel Boulos, Maged N; Lu, Zhihan; Guerrero, Paul; Jennett, Charlene; Steed, Anthony

    2017-02-20

    The latest generation of virtual and mixed reality hardware has rekindled interest in virtual reality GIS (VRGIS) and augmented reality GIS (ARGIS) applications in health, and opened up new and exciting opportunities and possibilities for using these technologies in the personal and public health arenas. From smart urban planning and emergency training to Pokémon Go, this article offers a snapshot of some of the most remarkable VRGIS and ARGIS solutions for tackling public and environmental health problems, and bringing about safer and healthier living options to individuals and communities. The article also covers the main technical foundations and issues underpinning these solutions.

  5. Actividad cultural de los capitulares de la catedral de Calahorra (1045-1257. De “scriptorium” monástico a “studium” catedralicio

    Directory of Open Access Journals (Sweden)

    Tomás SÁENZ DE HARO

    2009-12-01

    Full Text Available RESUMEN: Esta pequeña investigación analiza las realidades culturales en el cabildo catedralicio de Calahorra a partir de la restauración de la Iglesia calagurritana, tras la reconquista de la ciudad en 1045, hasta la definitiva cristalización del organigrama capitular a mediados del siglo XIII. Relacionamos la evolución de las actividades culturales capitulares, desde el scriptorium de carácter monástico al studium característico de un cabildo secularizado, con la dinámica interna de la propia institución capitular, nacida como una comunidad de vida que lentamente evoluciona hacia lo que será el modelo organizativo clásico durante las edades media y moderna. Al mismo tiempo, pretendemos aproximarnos al nivel cultural de la sede, tanto en sus realizaciones como en la formación intelectual adquirida por sus miembros. De este modo, concluimos la interesante vitalidad del scriptorium durante los primeros años, situación que contrasta con el limitado desarrollo del studium y con la modesta preparación intelectual de los capitulares calagurritanos de la primera mitad del siglo XIII.ABSTRACT: The content of this brief research work is the analysis of the cultural activities within the heart of the cathedral chapter of Calahorra from the church restoration in 1045 to the eventual consolidation of its organizational structure by the middle of the 13th century. We connect the development of such cultural activity, from a monastic-like scriptorium to an studium characteristic of the secular background of the cathedrals, with the own internal dynamics of the chapter institution, born as a life community and slowly evolving into a classical related organization chart during the medieval and modern age. At the same time, we also inquire into the level of cultural tasks of the see, both their standard of production as well as the training of its members. This way, we conclude an interesting vitality of the scriptorium in its early years, a

  6. Discontinuous drainage systems formed by highland precipitation and ground-water outflow in the Navua Valles and southwest Hadriacus Mons regions, Mars

    Science.gov (United States)

    Hargitai, H. I.; Gulick, V. C.; Glines, N. H.

    2017-09-01

    The Navua Valles are systems of paleodrainages located north of Dao Vallis, which empty into Hellas Planitia, the largest impact basin on Mars. In this study, we mapped and characterized the Navua Valles Region's individual drainage systems, including drainages along the southwestern flank of Hadriacus Mons, and one valley network from the same source as Navua Valles but flowing in the opposite direction. The major drainage systems share morphological characteristics common to both outflow channels and valley networks. The slopes in this region are dissected by two major Navua drainage systems (here Navua A* and B*) and several shorter, sub-parallel valleys formed on the highest gradient (approximately 20 m/km [1.15°]) slopes, at the lowest part of Hellas Basin's rim. The two major drainage systems originate in the highlands, and empty into the basin. Our mapping suggests that water in Navua Valles reached the basin floor in a complicated descent and included several episodes of surface ponding, surface runoff, infiltration, subsurface flow and subsequent outflow. The most prominent channel system, Navua A, forms a repetitive sequence of deep incision into bedrock, followed by a transition into broad channels in erodible materials, and then into unconfined deposits. This successive erosion-transport-deposition sequence continues to repeat along the valley's entire length forming a discontinuous pattern that is consistent with classical fluvial process models. The channels cut into volcanic plains likely emplaced from the formation of Tyrrhenus and Hadriacus Montes. The dendritic source valleys of Navua A originate from the rim of a highland crater while the rest of this subsystem consists of a single, discontinuous channel which is consistent with a single water source zone that likely supplied water for all channels downslope. These drainages may have formed as discontinuous channels, revealing the potential existence of subsurface drainage pathways located

  7. Testing a mechanical model of fracture formation by compaction-related burial in Gale crater, Mars: Implications for the origin of Aeolis Mons

    Science.gov (United States)

    Watkins, Jessica; Grotzinger, John P.

    2016-10-01

    Gale crater's 5-km-high central mound, Aeolis Mons (Mt. Sharp), has two leading hypotheses for its formation: buildup of windblown sediments, and exhumation of deeply buried strata. The deep burial hypothesis implies deformation by gravitational body forces and we evaluate that idea here. Ubiquitous fracture-related features have been regionally mapped from orbit and observed by the Curiosity rover in sedimentary strata including the Murray formation (dominantly mudstone) and the unconformably overlying Stimson formation (sandstone). Large fractures which exhibit complex banding structures with distinct chemical trends (e.g. halos) are primarily found in the Stimson fm, but do extend into the Murray fm in one location. Smaller, sulfate-filled fractures are most prevalent in the Murray but are also associated with haloed fractures in the Stimson. We test a compaction-related burial origin for these features based on a mechanical model for mode I fracture formation in order to constrain the regional stress history. According to the Mohr-Coulomb failure criterion, extension fracturing requires that the minimum principal stress (σ3) exceed the elastic tensile strength in the plane perpendicular to the opening. Given that tectonic driving processes are inoperative within Gale, non-tectonic mechanisms including overburden (maximum compressive stress; σ1 = ρgD) and pore fluid pressure (pf α D) must account for this tensile stress. Significant compaction as a result of increased depth of burial is required for pf to exceed σ3 and cause fracturing. When applied to Gale, we find that the estimated horizontal stress (σ3), as influenced by crater geometry, requires a substantial burial depth to produce sufficient pf to cause hydrofracture. Rheology contrasts likely caused fractures to develop and propagate more easily in the Stimson sandstone, which can support a smaller σ3, than in the Murray mudstone. In these permeable rocks, the sudden local decrease of pf at

  8. Chemical abundance analysis of symbiotic giants - III. V694 Mon, CD-36 8436, WRAY 16-202, Hen 3-1213, V455 Sco, and Hen 2-247

    CERN Document Server

    Galan, Cezary; Hinkle, Kenneth H

    2014-01-01

    The elemental abundances of symbiotic giants are essential to address the role of chemical composition in the evolution of symbiotic binaries, to map their parent population, and to trace their mass transfer history. However,the number of symbiotic giants with fairly well determined photospheric composition is still insufficient for statistical analyses. This is the third in a series of papers on the chemical composition of symbiotic giants determined from high resolution (R 50000), near-IR spectra. We present results here for the giant star in the V694 Mon, CD-36 8436, WRAY 16-202, Hen 3-1213, V455 Sco, and Hen 2-247 systems. Spectrum synthesis employing standard local thermal equilibrium (LTE) analysis and atmosphere models were used to obtain photospheric abundances of CNO and elements around the iron peak (Sc, Ti, Fe, and Ni). Our analysis reveals metallicities from slightly super-solar for V455 Sco ([Fe/H] +0.3 dex), near solar for WRAY 16-202 and Hen 2-247, slightly sub-solar for V694 Mon and CD-36 8436...

  9. Elaboración y aplicación de un plan de motivación para el personal de la Escuela de Formación Empresarial EFE Mons. Candido Rada del Fondo Ecuatoriano Populorum Progressio FEPP en el período Julio-Enero 2008-2009

    OpenAIRE

    Aguilar M., Ximena; Peralta Zh., Cristian

    2009-01-01

    La tesis tiene como finalidad la elaboración y aplicación de un plan de motivación para el personal de la Escuela de Formación Empresarial EFE Mons. Candido Rada del Fondo Ecuatoriano Populorum Progressio FEPP, en el periodo julio-enero 2008-2009 Para lo cual se tratan temas como: - Conociendo la Escuela de Formación Empresarial "EFE" Mons. Candido Rada del Fondo Ecuatoriano Populorum Progressio "FEPP" - Teorías motivacionales. - Influencia de la motivación en el trabajo. - Dif...

  10. Satellite Attitude from a Raven Class Telescope

    Science.gov (United States)

    2010-09-01

    Cache MATLAB was used as an interface to the jSim libraries, including orbit propagation, Earth Track determination, and satellite orientation methods...collection opportunities of the satellite. The combined software tool calculates the satellite orientation required to image the asset location... satellite orientation estimations, with only the photometric signatures with strong features being correctly estimated. The strong features that

  11. Final Environmental Assessment for the Integration and Developmental Testing of High Power Microwave Systems at Edwards Air Force Base

    Science.gov (United States)

    2006-10-16

    turkey vulture (Cathartes aura), common raven (Corvus corax), sage sparrow 10 (Amphispiza belli), barn owl (Tyto alba ), house finch (Carpodacus...habitats. Barn owls (Tyto alba ) are known to inhabit 27 buildings on the flightline. During the evening, owls feed on small rodents adjacent to the runways...Environmental Impact Report for the West Mojave Plan. U.S. Department of Interior, 18 BLM California Desert District Office, Moreno Valley

  12. Papel do sistema nervoso simpático sobre metabolismo e na resposta imunológica de monócitos circulantes de ratos durante o exercício agudo de intensidade moderada (natação)

    OpenAIRE

    Juliane da Silva Rossato

    2009-01-01

    O exercício físico de intensidade moderada tem apresentado um papel como potencial indutor na modulação da resposta imunológica. Estudos recentes de nosso grupo demonstraram que uma sessão de exercício moderado pode promover um incremento da resposta imunológica de células como monócitos/macrófagos, estimulando uma resposta inflamatória através da ativação do fator nuclear NF-κB. Diante desses resultados, investigamos a possibilidade de o sistema nervoso simpático periférico, através da liber...

  13. Voces jurídicas disímiles y discurso político monárquico, el caso de "Partidas" y su edición de 1555

    OpenAIRE

    Panateri, Daniel

    2015-01-01

    El artículo estudia los modos de funcionamiento políticos de los elementos jurídicos implicados en el texto alfonsí Las Siete Partidas (en este caso, uso, costumbre y fuero). El espacio donde se los analiza es tanto el siglo XIII como el siglo XVI a partir de su edición de 1555 a cargo de Gregorio López. La propuesta implica entender el texto jurídico de Partidas como un elemento recurrente en los momentos de crisis política monárquica castellana en tanto marco de acción y legitimación del po...

  14. Scientific Opinion supplementing the conclusions of the environmental risk assessment and risk management recommendations for the cultivation of the genetically modified insect resistant maize Bt11 and MON 810

    Directory of Open Access Journals (Sweden)

    EFSA Panel on Genetically Modified Organisms (GMO

    2012-12-01

    Full Text Available The EFSA GMO Panel was asked by the European Commission to apply its mathematical model to simulate and assess potential adverse effects resulting from the exposure of non-target Lepidoptera to maize Bt11 or MON 810 pollen under hypothetical agricultural conditions, and to provide information on the factors affecting the insect resistance management plan, additional to that in its 2011 Statement supplementing the evaluation of the environmental risk assessment and risk management recommendations on insect resistant genetically modified maize Bt11 for cultivation. Here, risk managers are provided with additional evidence and further clarifications to those previous conclusions and risk management recommendations. This Scientific Opinion provides background scientific information to inform the decision-making process; the EFSA GMO Panel reiterates that risk managers should choose risk mitigation and management measures that are proportionate to the level of identified risk according to the protection goals pertaining to their regions.

  15. Rooks (Corvus frugilegus) dine on snails in Poland

    OpenAIRE

    MACIOROWSKI, Grzegorz; BURAL, Dobieslaw; GIERSZAL, Henryk; URBANSKA, Maria

    2014-01-01

    Evidence of breeding rooks feeding on Roman snails (Helix pomatia) and grove snails (Cepaea nemoralis) is presented. Shell dimensions of food remains and intact Roman snails collected in the study area were measured in order to estimate the size and shape of the snails collected by rooks in relation to the food available in the vicinity of the rookery. Smaller and rounder snail shells were collected by rooks than were available in the area around the colony, indicating that the rooks collecte...

  16. Postconflict third-party affiliation in rooks, Corvus frugilegus.

    Science.gov (United States)

    Seed, Amanda M; Clayton, Nicola S; Emery, Nathan J

    2007-01-23

    Conflict features in the lives of many animal species and induces social stress mediated by glucocorticoid hormones [1]. Postconflict affiliation, between former opponents (reconciliation) or between former opponents and a bystander (third-party affiliation), has been suggested as a behavioral mechanism for reducing such stress [2], but has been studied almost exclusively in primates [3]. As with many primates, several bird species live in social groups and form affiliative relationships [4]. Do these distantly related animals also use affiliative behavior to offset the costs of conflict? We studied postconflict affiliation in a captive group of rooks. Unlike polygamous primates, monogamous rooks did not reconcile with former opponents. However, we found clear evidence of third-party affiliation after conflicts. Both initiators and targets of aggression engaged in third-party affiliation with a social partner and employed a specific behavior, bill twining, during the postconflict period. Both former aggressors and uninvolved third parties initiated affiliative contacts. Despite the long history of evolutionary divergence, the pattern of third-party affiliation in rooks is strikingly similar to that observed in tolerant primate species. Furthermore, the absence of reconciliation in rooks makes sense in light of the species differences in social systems.

  17. Recipients affect prosocial and altruistic choices in jackdaws, Corvus monedula.

    Directory of Open Access Journals (Sweden)

    Christine Schwab

    Full Text Available Other-regarding preferences are a critical feature of human cooperation but to what extent non-human animals exhibit these preferences is a matter of intense discussion. We tested whether jackdaws show prosocial behaviour (providing benefits to others at no cost to themselves and altruism (providing benefits to others while incurring costs with both sibling and non-sibling recipients. In the prosocial condition, a box was baited on both the actor's and the recipient's side (1/1 option, whereas another box provided food only for the actor (1/0 option. In the altruistic condition, the boxes contained food for either the actor (1/0 option or the recipient (0/1 option. The proportion of selfish (1/0 option and cooperative (1/1 and 0/1 option, respectively actors' choices was significantly affected by the recipients' behaviour. If recipients approached the boxes first and positioned themselves next to the box baited on their side, trying to access the food reward (recipient-first trials, actors were significantly more cooperative than when the actors approached the boxes first and made their choice prior to the recipients' arrival (actor-first trials. Further, in recipient-first trials actors were more cooperative towards recipients of the opposite sex, an effect that was even more pronounced in the altruistic condition. Hence, at no cost to the actors, all recipients could significantly influence the actors' behaviour, whereas at high costs this could be achieved even more so by recipients of different sex. Local/stimulus enhancement is discussed as the most likely cognitive mechanism to account for these effects.

  18. Le procédé de blanchiment dans les ateliers monétaires français au XV-XVIème siècle: approche archéométrique et expérimentale

    Directory of Open Access Journals (Sweden)

    Téreygeol, Florian

    2011-12-01

    Full Text Available In the late nineties, excavations in La Rochelle (France have discovered the remains of a royal mint of the sixteenth century. This discovery enabled the collection of artefacts directly related to the manufacture of coins. The exceptional corpus gathered is the subject of a study of the chaîne opératoire of coining in the medieval time. Special attention is paid to an operation which takes place before the strike: the blanching of blanks. Well documented in ancient times, the samples from La Rochelle offer the opportunity to study this process during the medieval period and in a royal mint. In addition, thanks to reconstitution experiments, it is possible to define a reaction mechanism that helps to understand our historical observations.[fr] À la fin des années quatre-vingtdix, des fouilles menées à La Rochelle (France ont permis de mettre au jour les vestiges d’un atelier monétaire royal du XVIe siècle. Cette découverte a permis la collecte de matériel directement liée à la fabrication monétaire. Le corpus exceptionnel rassemblé est l’objet d’une étude qui vise à mettre en évidence la chaîne opératoire de fabrication de monnaie à l’époque considérée. Un intérêt particulier est porté à une technique d’argenture qui intervient avant la frappe des monnaies, le blanchiment des flans. Bien documenté pour les périodes antiques, le matériel de La Rochelle offre la possibilité de mettre en évidence ce procédé pour une période plus récente et dans un cadre officiel. De plus, à partir d’expériences de reconstitution, il a été possible de proposer un mécanisme réactionnel. Les hypothèses proposées permettent alors de dégager des implications historiques dans le procédé de fabrication.

  19. Successful Labeling of \\text{99mTc-MDP Using \\text{99mTc Separated from 99Mo Produced by 100Mo(n,2n)99Mo

    Science.gov (United States)

    Nagai, Yasuki; Hatsukawa, Yuichi; Kin, Tadahiro; Hashimoto, Kazuyuki; Motoishi, Shoji; Konno, Chikara; Ochiai, Kentaro; Takakura, Kosuke; Sato, Yuichi; Kawauchi, Yukimasa; Sato, Norihito; Ohta, Akio; Yamabayashi, Hisamichi; Tanase, Masakazu; Fujisaki, Saburo; Teranaka, Tomoyuki; Takeuchi, Nobuhiro; Igarashi, Takashi

    2011-08-01

    We have for the first time succeeded in separating \\text{99mTc from a MoO3 sample irradiated with accelerator neutrons free from any radioactive impurities and in formulating \\text{99mTc-methylene diphosphonate (\\text{99mTc-MDP). 99Mo, the mother nuclide of \\text{99mTc, was produced by the 100Mo(n,2n)99Mo reaction using about 14 MeV neutrons provided by the 3H(d,n)4He reaction at the Fusion Neutronics Source of Japan Atomic Energy Agency. The \\text{99mTc was separated from 99Mo by sublimation and its radionuclide purity was confirmed to be higher than 99.99% by γ-spectroscopy. The labeling efficiency of \\text{99mTc-MDP was shown to be higher than 99% by thin-layer chromatography. These values exceed the United States Pharmacopeia requirements for a fission product, 99Mo. Consequently, a \\text{99mTc radiopharmaceutical preparation formed by using the mentioned 99Mo can be a promising substitute for the fission product 99Mo, which is currently produced using a highly enriched uranium target in aging research reactors. A longstanding problem to ensure a reliable and constant supply of 99Mo in Japan can be partially mitigated.

  20. Representações republicanas, sentidos monárquicos e permanências na transição / Republican representations, monarchical meanings and remains in the transition

    Directory of Open Access Journals (Sweden)

    Judá Leão Lobo

    2013-07-01

    Full Text Available Resumo: Este estudo destaca perspectivas incertas na formação e consolidação do republicanismo brasileiro, tendo por parâmetro o método indiciário de reconstrução histórica, no qual indícios, testemunhos e provas servem de pista para se elaborar uma hipótese hermenêutica acerca do passado. Nesse sentido, servimo-nos de textos literários, jornalísticos e acadêmicos, assim como de obras de arte e caricaturas políticas do período de transição para sublinhar continuidades de um imaginário monárquico na transição para a Primeira República.   Palavras-chave: imaginário político-jurídico; Monarquia e República no Brasil; continuidades.   Abstract: This study highlights uncertain perspectives in the formation and consolidation of Brazilian republicanism, having as parameter the indiciary method of historical reconstruction, in which signs, testimonies and evidences serve as clues to formulate a hermeneutical hypothesis about the past. In this sense we interpret literary, journalistic and academic texts, as well as works of art and political cartoons from the period of transition to emphasize continuities of a monarchical imaginary in the transition to the First Republic.   Keywords: political and juridical imaginary; Monarchy and Republic in Brazil; continuities.